xref: /openbmc/linux/sound/pci/rme9652/hdsp.c (revision 5927145e)
1 /*
2  *   ALSA driver for RME Hammerfall DSP audio interface(s)
3  *
4  *      Copyright (c) 2002  Paul Davis
5  *                          Marcus Andersson
6  *                          Thomas Charbonnel
7  *
8  *   This program is free software; you can redistribute it and/or modify
9  *   it under the terms of the GNU General Public License as published by
10  *   the Free Software Foundation; either version 2 of the License, or
11  *   (at your option) any later version.
12  *
13  *   This program is distributed in the hope that it will be useful,
14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  *   GNU General Public License for more details.
17  *
18  *   You should have received a copy of the GNU General Public License
19  *   along with this program; if not, write to the Free Software
20  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
21  *
22  */
23 
24 #include <linux/init.h>
25 #include <linux/delay.h>
26 #include <linux/interrupt.h>
27 #include <linux/pci.h>
28 #include <linux/firmware.h>
29 #include <linux/module.h>
30 #include <linux/math64.h>
31 #include <linux/vmalloc.h>
32 #include <linux/io.h>
33 
34 #include <sound/core.h>
35 #include <sound/control.h>
36 #include <sound/pcm.h>
37 #include <sound/info.h>
38 #include <sound/asoundef.h>
39 #include <sound/rawmidi.h>
40 #include <sound/hwdep.h>
41 #include <sound/initval.h>
42 #include <sound/hdsp.h>
43 
44 #include <asm/byteorder.h>
45 #include <asm/current.h>
46 
47 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
48 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
49 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable this card */
50 
51 module_param_array(index, int, NULL, 0444);
52 MODULE_PARM_DESC(index, "Index value for RME Hammerfall DSP interface.");
53 module_param_array(id, charp, NULL, 0444);
54 MODULE_PARM_DESC(id, "ID string for RME Hammerfall DSP interface.");
55 module_param_array(enable, bool, NULL, 0444);
56 MODULE_PARM_DESC(enable, "Enable/disable specific Hammerfall DSP soundcards.");
57 MODULE_AUTHOR("Paul Davis <paul@linuxaudiosystems.com>, Marcus Andersson, Thomas Charbonnel <thomas@undata.org>");
58 MODULE_DESCRIPTION("RME Hammerfall DSP");
59 MODULE_LICENSE("GPL");
60 MODULE_SUPPORTED_DEVICE("{{RME Hammerfall-DSP},"
61 	        "{RME HDSP-9652},"
62 		"{RME HDSP-9632}}");
63 MODULE_FIRMWARE("rpm_firmware.bin");
64 MODULE_FIRMWARE("multiface_firmware.bin");
65 MODULE_FIRMWARE("multiface_firmware_rev11.bin");
66 MODULE_FIRMWARE("digiface_firmware.bin");
67 MODULE_FIRMWARE("digiface_firmware_rev11.bin");
68 
69 #define HDSP_MAX_CHANNELS        26
70 #define HDSP_MAX_DS_CHANNELS     14
71 #define HDSP_MAX_QS_CHANNELS     8
72 #define DIGIFACE_SS_CHANNELS     26
73 #define DIGIFACE_DS_CHANNELS     14
74 #define MULTIFACE_SS_CHANNELS    18
75 #define MULTIFACE_DS_CHANNELS    14
76 #define H9652_SS_CHANNELS        26
77 #define H9652_DS_CHANNELS        14
78 /* This does not include possible Analog Extension Boards
79    AEBs are detected at card initialization
80 */
81 #define H9632_SS_CHANNELS	 12
82 #define H9632_DS_CHANNELS	 8
83 #define H9632_QS_CHANNELS	 4
84 #define RPM_CHANNELS             6
85 
86 /* Write registers. These are defined as byte-offsets from the iobase value.
87  */
88 #define HDSP_resetPointer               0
89 #define HDSP_freqReg			0
90 #define HDSP_outputBufferAddress	32
91 #define HDSP_inputBufferAddress		36
92 #define HDSP_controlRegister		64
93 #define HDSP_interruptConfirmation	96
94 #define HDSP_outputEnable	  	128
95 #define HDSP_control2Reg		256
96 #define HDSP_midiDataOut0  		352
97 #define HDSP_midiDataOut1  		356
98 #define HDSP_fifoData  			368
99 #define HDSP_inputEnable	 	384
100 
101 /* Read registers. These are defined as byte-offsets from the iobase value
102  */
103 
104 #define HDSP_statusRegister    0
105 #define HDSP_timecode        128
106 #define HDSP_status2Register 192
107 #define HDSP_midiDataIn0     360
108 #define HDSP_midiDataIn1     364
109 #define HDSP_midiStatusOut0  384
110 #define HDSP_midiStatusOut1  388
111 #define HDSP_midiStatusIn0   392
112 #define HDSP_midiStatusIn1   396
113 #define HDSP_fifoStatus      400
114 
115 /* the meters are regular i/o-mapped registers, but offset
116    considerably from the rest. the peak registers are reset
117    when read; the least-significant 4 bits are full-scale counters;
118    the actual peak value is in the most-significant 24 bits.
119 */
120 
121 #define HDSP_playbackPeakLevel  4096  /* 26 * 32 bit values */
122 #define HDSP_inputPeakLevel     4224  /* 26 * 32 bit values */
123 #define HDSP_outputPeakLevel    4352  /* (26+2) * 32 bit values */
124 #define HDSP_playbackRmsLevel   4612  /* 26 * 64 bit values */
125 #define HDSP_inputRmsLevel      4868  /* 26 * 64 bit values */
126 
127 
128 /* This is for H9652 cards
129    Peak values are read downward from the base
130    Rms values are read upward
131    There are rms values for the outputs too
132    26*3 values are read in ss mode
133    14*3 in ds mode, with no gap between values
134 */
135 #define HDSP_9652_peakBase	7164
136 #define HDSP_9652_rmsBase	4096
137 
138 /* c.f. the hdsp_9632_meters_t struct */
139 #define HDSP_9632_metersBase	4096
140 
141 #define HDSP_IO_EXTENT     7168
142 
143 /* control2 register bits */
144 
145 #define HDSP_TMS                0x01
146 #define HDSP_TCK                0x02
147 #define HDSP_TDI                0x04
148 #define HDSP_JTAG               0x08
149 #define HDSP_PWDN               0x10
150 #define HDSP_PROGRAM	        0x020
151 #define HDSP_CONFIG_MODE_0	0x040
152 #define HDSP_CONFIG_MODE_1	0x080
153 #define HDSP_VERSION_BIT	(0x100 | HDSP_S_LOAD)
154 #define HDSP_BIGENDIAN_MODE     0x200
155 #define HDSP_RD_MULTIPLE        0x400
156 #define HDSP_9652_ENABLE_MIXER  0x800
157 #define HDSP_S200		0x800
158 #define HDSP_S300		(0x100 | HDSP_S200) /* dummy, purpose of 0x100 unknown */
159 #define HDSP_CYCLIC_MODE	0x1000
160 #define HDSP_TDO                0x10000000
161 
162 #define HDSP_S_PROGRAM	    (HDSP_CYCLIC_MODE|HDSP_PROGRAM|HDSP_CONFIG_MODE_0)
163 #define HDSP_S_LOAD	    (HDSP_CYCLIC_MODE|HDSP_PROGRAM|HDSP_CONFIG_MODE_1)
164 
165 /* Control Register bits */
166 
167 #define HDSP_Start                (1<<0)  /* start engine */
168 #define HDSP_Latency0             (1<<1)  /* buffer size = 2^n where n is defined by Latency{2,1,0} */
169 #define HDSP_Latency1             (1<<2)  /* [ see above ] */
170 #define HDSP_Latency2             (1<<3)  /* [ see above ] */
171 #define HDSP_ClockModeMaster      (1<<4)  /* 1=Master, 0=Slave/Autosync */
172 #define HDSP_AudioInterruptEnable (1<<5)  /* what do you think ? */
173 #define HDSP_Frequency0           (1<<6)  /* 0=44.1kHz/88.2kHz/176.4kHz 1=48kHz/96kHz/192kHz */
174 #define HDSP_Frequency1           (1<<7)  /* 0=32kHz/64kHz/128kHz */
175 #define HDSP_DoubleSpeed          (1<<8)  /* 0=normal speed, 1=double speed */
176 #define HDSP_SPDIFProfessional    (1<<9)  /* 0=consumer, 1=professional */
177 #define HDSP_SPDIFEmphasis        (1<<10) /* 0=none, 1=on */
178 #define HDSP_SPDIFNonAudio        (1<<11) /* 0=off, 1=on */
179 #define HDSP_SPDIFOpticalOut      (1<<12) /* 1=use 1st ADAT connector for SPDIF, 0=do not */
180 #define HDSP_SyncRef2             (1<<13)
181 #define HDSP_SPDIFInputSelect0    (1<<14)
182 #define HDSP_SPDIFInputSelect1    (1<<15)
183 #define HDSP_SyncRef0             (1<<16)
184 #define HDSP_SyncRef1             (1<<17)
185 #define HDSP_AnalogExtensionBoard (1<<18) /* For H9632 cards */
186 #define HDSP_XLRBreakoutCable     (1<<20) /* For H9632 cards */
187 #define HDSP_Midi0InterruptEnable (1<<22)
188 #define HDSP_Midi1InterruptEnable (1<<23)
189 #define HDSP_LineOut              (1<<24)
190 #define HDSP_ADGain0		  (1<<25) /* From here : H9632 specific */
191 #define HDSP_ADGain1		  (1<<26)
192 #define HDSP_DAGain0		  (1<<27)
193 #define HDSP_DAGain1		  (1<<28)
194 #define HDSP_PhoneGain0		  (1<<29)
195 #define HDSP_PhoneGain1		  (1<<30)
196 #define HDSP_QuadSpeed	  	  (1<<31)
197 
198 /* RPM uses some of the registers for special purposes */
199 #define HDSP_RPM_Inp12            0x04A00
200 #define HDSP_RPM_Inp12_Phon_6dB   0x00800  /* Dolby */
201 #define HDSP_RPM_Inp12_Phon_0dB   0x00000  /* .. */
202 #define HDSP_RPM_Inp12_Phon_n6dB  0x04000  /* inp_0 */
203 #define HDSP_RPM_Inp12_Line_0dB   0x04200  /* Dolby+PRO */
204 #define HDSP_RPM_Inp12_Line_n6dB  0x00200  /* PRO */
205 
206 #define HDSP_RPM_Inp34            0x32000
207 #define HDSP_RPM_Inp34_Phon_6dB   0x20000  /* SyncRef1 */
208 #define HDSP_RPM_Inp34_Phon_0dB   0x00000  /* .. */
209 #define HDSP_RPM_Inp34_Phon_n6dB  0x02000  /* SyncRef2 */
210 #define HDSP_RPM_Inp34_Line_0dB   0x30000  /* SyncRef1+SyncRef0 */
211 #define HDSP_RPM_Inp34_Line_n6dB  0x10000  /* SyncRef0 */
212 
213 #define HDSP_RPM_Bypass           0x01000
214 
215 #define HDSP_RPM_Disconnect       0x00001
216 
217 #define HDSP_ADGainMask       (HDSP_ADGain0|HDSP_ADGain1)
218 #define HDSP_ADGainMinus10dBV  HDSP_ADGainMask
219 #define HDSP_ADGainPlus4dBu   (HDSP_ADGain0)
220 #define HDSP_ADGainLowGain     0
221 
222 #define HDSP_DAGainMask         (HDSP_DAGain0|HDSP_DAGain1)
223 #define HDSP_DAGainHighGain      HDSP_DAGainMask
224 #define HDSP_DAGainPlus4dBu     (HDSP_DAGain0)
225 #define HDSP_DAGainMinus10dBV    0
226 
227 #define HDSP_PhoneGainMask      (HDSP_PhoneGain0|HDSP_PhoneGain1)
228 #define HDSP_PhoneGain0dB        HDSP_PhoneGainMask
229 #define HDSP_PhoneGainMinus6dB  (HDSP_PhoneGain0)
230 #define HDSP_PhoneGainMinus12dB  0
231 
232 #define HDSP_LatencyMask    (HDSP_Latency0|HDSP_Latency1|HDSP_Latency2)
233 #define HDSP_FrequencyMask  (HDSP_Frequency0|HDSP_Frequency1|HDSP_DoubleSpeed|HDSP_QuadSpeed)
234 
235 #define HDSP_SPDIFInputMask    (HDSP_SPDIFInputSelect0|HDSP_SPDIFInputSelect1)
236 #define HDSP_SPDIFInputADAT1    0
237 #define HDSP_SPDIFInputCoaxial (HDSP_SPDIFInputSelect0)
238 #define HDSP_SPDIFInputCdrom   (HDSP_SPDIFInputSelect1)
239 #define HDSP_SPDIFInputAES     (HDSP_SPDIFInputSelect0|HDSP_SPDIFInputSelect1)
240 
241 #define HDSP_SyncRefMask        (HDSP_SyncRef0|HDSP_SyncRef1|HDSP_SyncRef2)
242 #define HDSP_SyncRef_ADAT1       0
243 #define HDSP_SyncRef_ADAT2      (HDSP_SyncRef0)
244 #define HDSP_SyncRef_ADAT3      (HDSP_SyncRef1)
245 #define HDSP_SyncRef_SPDIF      (HDSP_SyncRef0|HDSP_SyncRef1)
246 #define HDSP_SyncRef_WORD       (HDSP_SyncRef2)
247 #define HDSP_SyncRef_ADAT_SYNC  (HDSP_SyncRef0|HDSP_SyncRef2)
248 
249 /* Sample Clock Sources */
250 
251 #define HDSP_CLOCK_SOURCE_AUTOSYNC           0
252 #define HDSP_CLOCK_SOURCE_INTERNAL_32KHZ     1
253 #define HDSP_CLOCK_SOURCE_INTERNAL_44_1KHZ   2
254 #define HDSP_CLOCK_SOURCE_INTERNAL_48KHZ     3
255 #define HDSP_CLOCK_SOURCE_INTERNAL_64KHZ     4
256 #define HDSP_CLOCK_SOURCE_INTERNAL_88_2KHZ   5
257 #define HDSP_CLOCK_SOURCE_INTERNAL_96KHZ     6
258 #define HDSP_CLOCK_SOURCE_INTERNAL_128KHZ    7
259 #define HDSP_CLOCK_SOURCE_INTERNAL_176_4KHZ  8
260 #define HDSP_CLOCK_SOURCE_INTERNAL_192KHZ    9
261 
262 /* Preferred sync reference choices - used by "pref_sync_ref" control switch */
263 
264 #define HDSP_SYNC_FROM_WORD      0
265 #define HDSP_SYNC_FROM_SPDIF     1
266 #define HDSP_SYNC_FROM_ADAT1     2
267 #define HDSP_SYNC_FROM_ADAT_SYNC 3
268 #define HDSP_SYNC_FROM_ADAT2     4
269 #define HDSP_SYNC_FROM_ADAT3     5
270 
271 /* SyncCheck status */
272 
273 #define HDSP_SYNC_CHECK_NO_LOCK 0
274 #define HDSP_SYNC_CHECK_LOCK    1
275 #define HDSP_SYNC_CHECK_SYNC	2
276 
277 /* AutoSync references - used by "autosync_ref" control switch */
278 
279 #define HDSP_AUTOSYNC_FROM_WORD      0
280 #define HDSP_AUTOSYNC_FROM_ADAT_SYNC 1
281 #define HDSP_AUTOSYNC_FROM_SPDIF     2
282 #define HDSP_AUTOSYNC_FROM_NONE	     3
283 #define HDSP_AUTOSYNC_FROM_ADAT1     4
284 #define HDSP_AUTOSYNC_FROM_ADAT2     5
285 #define HDSP_AUTOSYNC_FROM_ADAT3     6
286 
287 /* Possible sources of S/PDIF input */
288 
289 #define HDSP_SPDIFIN_OPTICAL  0	/* optical  (ADAT1) */
290 #define HDSP_SPDIFIN_COAXIAL  1	/* coaxial (RCA) */
291 #define HDSP_SPDIFIN_INTERNAL 2	/* internal (CDROM) */
292 #define HDSP_SPDIFIN_AES      3 /* xlr for H9632 (AES)*/
293 
294 #define HDSP_Frequency32KHz    HDSP_Frequency0
295 #define HDSP_Frequency44_1KHz  HDSP_Frequency1
296 #define HDSP_Frequency48KHz    (HDSP_Frequency1|HDSP_Frequency0)
297 #define HDSP_Frequency64KHz    (HDSP_DoubleSpeed|HDSP_Frequency0)
298 #define HDSP_Frequency88_2KHz  (HDSP_DoubleSpeed|HDSP_Frequency1)
299 #define HDSP_Frequency96KHz    (HDSP_DoubleSpeed|HDSP_Frequency1|HDSP_Frequency0)
300 /* For H9632 cards */
301 #define HDSP_Frequency128KHz   (HDSP_QuadSpeed|HDSP_DoubleSpeed|HDSP_Frequency0)
302 #define HDSP_Frequency176_4KHz (HDSP_QuadSpeed|HDSP_DoubleSpeed|HDSP_Frequency1)
303 #define HDSP_Frequency192KHz   (HDSP_QuadSpeed|HDSP_DoubleSpeed|HDSP_Frequency1|HDSP_Frequency0)
304 /* RME says n = 104857600000000, but in the windows MADI driver, I see:
305 	return 104857600000000 / rate; // 100 MHz
306 	return 110100480000000 / rate; // 105 MHz
307 */
308 #define DDS_NUMERATOR 104857600000000ULL;  /*  =  2^20 * 10^8 */
309 
310 #define hdsp_encode_latency(x)       (((x)<<1) & HDSP_LatencyMask)
311 #define hdsp_decode_latency(x)       (((x) & HDSP_LatencyMask)>>1)
312 
313 #define hdsp_encode_spdif_in(x) (((x)&0x3)<<14)
314 #define hdsp_decode_spdif_in(x) (((x)>>14)&0x3)
315 
316 /* Status Register bits */
317 
318 #define HDSP_audioIRQPending    (1<<0)
319 #define HDSP_Lock2              (1<<1)     /* this is for Digiface and H9652 */
320 #define HDSP_spdifFrequency3	HDSP_Lock2 /* this is for H9632 only */
321 #define HDSP_Lock1              (1<<2)
322 #define HDSP_Lock0              (1<<3)
323 #define HDSP_SPDIFSync          (1<<4)
324 #define HDSP_TimecodeLock       (1<<5)
325 #define HDSP_BufferPositionMask 0x000FFC0 /* Bit 6..15 : h/w buffer pointer */
326 #define HDSP_Sync2              (1<<16)
327 #define HDSP_Sync1              (1<<17)
328 #define HDSP_Sync0              (1<<18)
329 #define HDSP_DoubleSpeedStatus  (1<<19)
330 #define HDSP_ConfigError        (1<<20)
331 #define HDSP_DllError           (1<<21)
332 #define HDSP_spdifFrequency0    (1<<22)
333 #define HDSP_spdifFrequency1    (1<<23)
334 #define HDSP_spdifFrequency2    (1<<24)
335 #define HDSP_SPDIFErrorFlag     (1<<25)
336 #define HDSP_BufferID           (1<<26)
337 #define HDSP_TimecodeSync       (1<<27)
338 #define HDSP_AEBO          	(1<<28) /* H9632 specific Analog Extension Boards */
339 #define HDSP_AEBI		(1<<29) /* 0 = present, 1 = absent */
340 #define HDSP_midi0IRQPending    (1<<30)
341 #define HDSP_midi1IRQPending    (1<<31)
342 
343 #define HDSP_spdifFrequencyMask    (HDSP_spdifFrequency0|HDSP_spdifFrequency1|HDSP_spdifFrequency2)
344 #define HDSP_spdifFrequencyMask_9632 (HDSP_spdifFrequency0|\
345 				      HDSP_spdifFrequency1|\
346 				      HDSP_spdifFrequency2|\
347 				      HDSP_spdifFrequency3)
348 
349 #define HDSP_spdifFrequency32KHz   (HDSP_spdifFrequency0)
350 #define HDSP_spdifFrequency44_1KHz (HDSP_spdifFrequency1)
351 #define HDSP_spdifFrequency48KHz   (HDSP_spdifFrequency0|HDSP_spdifFrequency1)
352 
353 #define HDSP_spdifFrequency64KHz   (HDSP_spdifFrequency2)
354 #define HDSP_spdifFrequency88_2KHz (HDSP_spdifFrequency0|HDSP_spdifFrequency2)
355 #define HDSP_spdifFrequency96KHz   (HDSP_spdifFrequency2|HDSP_spdifFrequency1)
356 
357 /* This is for H9632 cards */
358 #define HDSP_spdifFrequency128KHz   (HDSP_spdifFrequency0|\
359 				     HDSP_spdifFrequency1|\
360 				     HDSP_spdifFrequency2)
361 #define HDSP_spdifFrequency176_4KHz HDSP_spdifFrequency3
362 #define HDSP_spdifFrequency192KHz   (HDSP_spdifFrequency3|HDSP_spdifFrequency0)
363 
364 /* Status2 Register bits */
365 
366 #define HDSP_version0     (1<<0)
367 #define HDSP_version1     (1<<1)
368 #define HDSP_version2     (1<<2)
369 #define HDSP_wc_lock      (1<<3)
370 #define HDSP_wc_sync      (1<<4)
371 #define HDSP_inp_freq0    (1<<5)
372 #define HDSP_inp_freq1    (1<<6)
373 #define HDSP_inp_freq2    (1<<7)
374 #define HDSP_SelSyncRef0  (1<<8)
375 #define HDSP_SelSyncRef1  (1<<9)
376 #define HDSP_SelSyncRef2  (1<<10)
377 
378 #define HDSP_wc_valid (HDSP_wc_lock|HDSP_wc_sync)
379 
380 #define HDSP_systemFrequencyMask (HDSP_inp_freq0|HDSP_inp_freq1|HDSP_inp_freq2)
381 #define HDSP_systemFrequency32   (HDSP_inp_freq0)
382 #define HDSP_systemFrequency44_1 (HDSP_inp_freq1)
383 #define HDSP_systemFrequency48   (HDSP_inp_freq0|HDSP_inp_freq1)
384 #define HDSP_systemFrequency64   (HDSP_inp_freq2)
385 #define HDSP_systemFrequency88_2 (HDSP_inp_freq0|HDSP_inp_freq2)
386 #define HDSP_systemFrequency96   (HDSP_inp_freq1|HDSP_inp_freq2)
387 /* FIXME : more values for 9632 cards ? */
388 
389 #define HDSP_SelSyncRefMask        (HDSP_SelSyncRef0|HDSP_SelSyncRef1|HDSP_SelSyncRef2)
390 #define HDSP_SelSyncRef_ADAT1      0
391 #define HDSP_SelSyncRef_ADAT2      (HDSP_SelSyncRef0)
392 #define HDSP_SelSyncRef_ADAT3      (HDSP_SelSyncRef1)
393 #define HDSP_SelSyncRef_SPDIF      (HDSP_SelSyncRef0|HDSP_SelSyncRef1)
394 #define HDSP_SelSyncRef_WORD       (HDSP_SelSyncRef2)
395 #define HDSP_SelSyncRef_ADAT_SYNC  (HDSP_SelSyncRef0|HDSP_SelSyncRef2)
396 
397 /* Card state flags */
398 
399 #define HDSP_InitializationComplete  (1<<0)
400 #define HDSP_FirmwareLoaded	     (1<<1)
401 #define HDSP_FirmwareCached	     (1<<2)
402 
403 /* FIFO wait times, defined in terms of 1/10ths of msecs */
404 
405 #define HDSP_LONG_WAIT	 5000
406 #define HDSP_SHORT_WAIT  30
407 
408 #define UNITY_GAIN                       32768
409 #define MINUS_INFINITY_GAIN              0
410 
411 /* the size of a substream (1 mono data stream) */
412 
413 #define HDSP_CHANNEL_BUFFER_SAMPLES  (16*1024)
414 #define HDSP_CHANNEL_BUFFER_BYTES    (4*HDSP_CHANNEL_BUFFER_SAMPLES)
415 
416 /* the size of the area we need to allocate for DMA transfers. the
417    size is the same regardless of the number of channels - the
418    Multiface still uses the same memory area.
419 
420    Note that we allocate 1 more channel than is apparently needed
421    because the h/w seems to write 1 byte beyond the end of the last
422    page. Sigh.
423 */
424 
425 #define HDSP_DMA_AREA_BYTES ((HDSP_MAX_CHANNELS+1) * HDSP_CHANNEL_BUFFER_BYTES)
426 #define HDSP_DMA_AREA_KILOBYTES (HDSP_DMA_AREA_BYTES/1024)
427 
428 #define HDSP_FIRMWARE_SIZE	(24413 * 4)
429 
430 struct hdsp_9632_meters {
431     u32 input_peak[16];
432     u32 playback_peak[16];
433     u32 output_peak[16];
434     u32 xxx_peak[16];
435     u32 padding[64];
436     u32 input_rms_low[16];
437     u32 playback_rms_low[16];
438     u32 output_rms_low[16];
439     u32 xxx_rms_low[16];
440     u32 input_rms_high[16];
441     u32 playback_rms_high[16];
442     u32 output_rms_high[16];
443     u32 xxx_rms_high[16];
444 };
445 
446 struct hdsp_midi {
447     struct hdsp             *hdsp;
448     int                      id;
449     struct snd_rawmidi           *rmidi;
450     struct snd_rawmidi_substream *input;
451     struct snd_rawmidi_substream *output;
452     char                     istimer; /* timer in use */
453     struct timer_list	     timer;
454     spinlock_t               lock;
455     int			     pending;
456 };
457 
458 struct hdsp {
459 	spinlock_t            lock;
460 	struct snd_pcm_substream *capture_substream;
461 	struct snd_pcm_substream *playback_substream;
462         struct hdsp_midi      midi[2];
463 	struct tasklet_struct midi_tasklet;
464 	int		      use_midi_tasklet;
465 	int                   precise_ptr;
466 	u32                   control_register;	     /* cached value */
467 	u32                   control2_register;     /* cached value */
468 	u32                   creg_spdif;
469 	u32                   creg_spdif_stream;
470 	int                   clock_source_locked;
471 	char                 *card_name;	 /* digiface/multiface/rpm */
472 	enum HDSP_IO_Type     io_type;               /* ditto, but for code use */
473         unsigned short        firmware_rev;
474 	unsigned short	      state;		     /* stores state bits */
475 	const struct firmware *firmware;
476 	u32                  *fw_uploaded;
477 	size_t                period_bytes; 	     /* guess what this is */
478 	unsigned char	      max_channels;
479 	unsigned char	      qs_in_channels;	     /* quad speed mode for H9632 */
480 	unsigned char         ds_in_channels;
481 	unsigned char         ss_in_channels;	    /* different for multiface/digiface */
482 	unsigned char	      qs_out_channels;
483 	unsigned char         ds_out_channels;
484 	unsigned char         ss_out_channels;
485 
486 	struct snd_dma_buffer capture_dma_buf;
487 	struct snd_dma_buffer playback_dma_buf;
488 	unsigned char        *capture_buffer;	    /* suitably aligned address */
489 	unsigned char        *playback_buffer;	    /* suitably aligned address */
490 
491 	pid_t                 capture_pid;
492 	pid_t                 playback_pid;
493 	int                   running;
494 	int                   system_sample_rate;
495 	char                 *channel_map;
496 	int                   dev;
497 	int                   irq;
498 	unsigned long         port;
499         void __iomem         *iobase;
500 	struct snd_card *card;
501 	struct snd_pcm *pcm;
502 	struct snd_hwdep          *hwdep;
503 	struct pci_dev       *pci;
504 	struct snd_kcontrol *spdif_ctl;
505         unsigned short        mixer_matrix[HDSP_MATRIX_MIXER_SIZE];
506 	unsigned int          dds_value; /* last value written to freq register */
507 };
508 
509 /* These tables map the ALSA channels 1..N to the channels that we
510    need to use in order to find the relevant channel buffer. RME
511    refer to this kind of mapping as between "the ADAT channel and
512    the DMA channel." We index it using the logical audio channel,
513    and the value is the DMA channel (i.e. channel buffer number)
514    where the data for that channel can be read/written from/to.
515 */
516 
517 static char channel_map_df_ss[HDSP_MAX_CHANNELS] = {
518 	0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
519 	18, 19, 20, 21, 22, 23, 24, 25
520 };
521 
522 static char channel_map_mf_ss[HDSP_MAX_CHANNELS] = { /* Multiface */
523 	/* Analog */
524 	0, 1, 2, 3, 4, 5, 6, 7,
525 	/* ADAT 2 */
526 	16, 17, 18, 19, 20, 21, 22, 23,
527 	/* SPDIF */
528 	24, 25,
529 	-1, -1, -1, -1, -1, -1, -1, -1
530 };
531 
532 static char channel_map_ds[HDSP_MAX_CHANNELS] = {
533 	/* ADAT channels are remapped */
534 	1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23,
535 	/* channels 12 and 13 are S/PDIF */
536 	24, 25,
537 	/* others don't exist */
538 	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
539 };
540 
541 static char channel_map_H9632_ss[HDSP_MAX_CHANNELS] = {
542 	/* ADAT channels */
543 	0, 1, 2, 3, 4, 5, 6, 7,
544 	/* SPDIF */
545 	8, 9,
546 	/* Analog */
547 	10, 11,
548 	/* AO4S-192 and AI4S-192 extension boards */
549 	12, 13, 14, 15,
550 	/* others don't exist */
551 	-1, -1, -1, -1, -1, -1, -1, -1,
552 	-1, -1
553 };
554 
555 static char channel_map_H9632_ds[HDSP_MAX_CHANNELS] = {
556 	/* ADAT */
557 	1, 3, 5, 7,
558 	/* SPDIF */
559 	8, 9,
560 	/* Analog */
561 	10, 11,
562 	/* AO4S-192 and AI4S-192 extension boards */
563 	12, 13, 14, 15,
564 	/* others don't exist */
565 	-1, -1, -1, -1, -1, -1, -1, -1,
566 	-1, -1, -1, -1, -1, -1
567 };
568 
569 static char channel_map_H9632_qs[HDSP_MAX_CHANNELS] = {
570 	/* ADAT is disabled in this mode */
571 	/* SPDIF */
572 	8, 9,
573 	/* Analog */
574 	10, 11,
575 	/* AO4S-192 and AI4S-192 extension boards */
576 	12, 13, 14, 15,
577 	/* others don't exist */
578 	-1, -1, -1, -1, -1, -1, -1, -1,
579 	-1, -1, -1, -1, -1, -1, -1, -1,
580 	-1, -1
581 };
582 
583 static int snd_hammerfall_get_buffer(struct pci_dev *pci, struct snd_dma_buffer *dmab, size_t size)
584 {
585 	dmab->dev.type = SNDRV_DMA_TYPE_DEV;
586 	dmab->dev.dev = snd_dma_pci_data(pci);
587 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
588 				size, dmab) < 0)
589 		return -ENOMEM;
590 	return 0;
591 }
592 
593 static void snd_hammerfall_free_buffer(struct snd_dma_buffer *dmab, struct pci_dev *pci)
594 {
595 	if (dmab->area)
596 		snd_dma_free_pages(dmab);
597 }
598 
599 
600 static const struct pci_device_id snd_hdsp_ids[] = {
601 	{
602 		.vendor = PCI_VENDOR_ID_XILINX,
603 		.device = PCI_DEVICE_ID_XILINX_HAMMERFALL_DSP,
604 		.subvendor = PCI_ANY_ID,
605 		.subdevice = PCI_ANY_ID,
606 	}, /* RME Hammerfall-DSP */
607 	{ 0, },
608 };
609 
610 MODULE_DEVICE_TABLE(pci, snd_hdsp_ids);
611 
612 /* prototypes */
613 static int snd_hdsp_create_alsa_devices(struct snd_card *card, struct hdsp *hdsp);
614 static int snd_hdsp_create_pcm(struct snd_card *card, struct hdsp *hdsp);
615 static int snd_hdsp_enable_io (struct hdsp *hdsp);
616 static void snd_hdsp_initialize_midi_flush (struct hdsp *hdsp);
617 static void snd_hdsp_initialize_channels (struct hdsp *hdsp);
618 static int hdsp_fifo_wait(struct hdsp *hdsp, int count, int timeout);
619 static int hdsp_autosync_ref(struct hdsp *hdsp);
620 static int snd_hdsp_set_defaults(struct hdsp *hdsp);
621 static void snd_hdsp_9652_enable_mixer (struct hdsp *hdsp);
622 
623 static int hdsp_playback_to_output_key (struct hdsp *hdsp, int in, int out)
624 {
625 	switch (hdsp->io_type) {
626 	case Multiface:
627 	case Digiface:
628 	case RPM:
629 	default:
630 		if (hdsp->firmware_rev == 0xa)
631 			return (64 * out) + (32 + (in));
632 		else
633 			return (52 * out) + (26 + (in));
634 	case H9632:
635 		return (32 * out) + (16 + (in));
636 	case H9652:
637 		return (52 * out) + (26 + (in));
638 	}
639 }
640 
641 static int hdsp_input_to_output_key (struct hdsp *hdsp, int in, int out)
642 {
643 	switch (hdsp->io_type) {
644 	case Multiface:
645 	case Digiface:
646 	case RPM:
647 	default:
648 		if (hdsp->firmware_rev == 0xa)
649 			return (64 * out) + in;
650 		else
651 			return (52 * out) + in;
652 	case H9632:
653 		return (32 * out) + in;
654 	case H9652:
655 		return (52 * out) + in;
656 	}
657 }
658 
659 static void hdsp_write(struct hdsp *hdsp, int reg, int val)
660 {
661 	writel(val, hdsp->iobase + reg);
662 }
663 
664 static unsigned int hdsp_read(struct hdsp *hdsp, int reg)
665 {
666 	return readl (hdsp->iobase + reg);
667 }
668 
669 static int hdsp_check_for_iobox (struct hdsp *hdsp)
670 {
671 	int i;
672 
673 	if (hdsp->io_type == H9652 || hdsp->io_type == H9632) return 0;
674 	for (i = 0; i < 500; i++) {
675 		if (0 == (hdsp_read(hdsp, HDSP_statusRegister) &
676 					HDSP_ConfigError)) {
677 			if (i) {
678 				dev_dbg(hdsp->card->dev,
679 					"IO box found after %d ms\n",
680 						(20 * i));
681 			}
682 			return 0;
683 		}
684 		msleep(20);
685 	}
686 	dev_err(hdsp->card->dev, "no IO box connected!\n");
687 	hdsp->state &= ~HDSP_FirmwareLoaded;
688 	return -EIO;
689 }
690 
691 static int hdsp_wait_for_iobox(struct hdsp *hdsp, unsigned int loops,
692 			       unsigned int delay)
693 {
694 	unsigned int i;
695 
696 	if (hdsp->io_type == H9652 || hdsp->io_type == H9632)
697 		return 0;
698 
699 	for (i = 0; i != loops; ++i) {
700 		if (hdsp_read(hdsp, HDSP_statusRegister) & HDSP_ConfigError)
701 			msleep(delay);
702 		else {
703 			dev_dbg(hdsp->card->dev, "iobox found after %ums!\n",
704 				   i * delay);
705 			return 0;
706 		}
707 	}
708 
709 	dev_info(hdsp->card->dev, "no IO box connected!\n");
710 	hdsp->state &= ~HDSP_FirmwareLoaded;
711 	return -EIO;
712 }
713 
714 static int snd_hdsp_load_firmware_from_cache(struct hdsp *hdsp) {
715 
716 	int i;
717 	unsigned long flags;
718 	const u32 *cache;
719 
720 	if (hdsp->fw_uploaded)
721 		cache = hdsp->fw_uploaded;
722 	else {
723 		if (!hdsp->firmware)
724 			return -ENODEV;
725 		cache = (u32 *)hdsp->firmware->data;
726 		if (!cache)
727 			return -ENODEV;
728 	}
729 
730 	if ((hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DllError) != 0) {
731 
732 		dev_info(hdsp->card->dev, "loading firmware\n");
733 
734 		hdsp_write (hdsp, HDSP_control2Reg, HDSP_S_PROGRAM);
735 		hdsp_write (hdsp, HDSP_fifoData, 0);
736 
737 		if (hdsp_fifo_wait (hdsp, 0, HDSP_LONG_WAIT)) {
738 			dev_info(hdsp->card->dev,
739 				 "timeout waiting for download preparation\n");
740 			hdsp_write(hdsp, HDSP_control2Reg, HDSP_S200);
741 			return -EIO;
742 		}
743 
744 		hdsp_write (hdsp, HDSP_control2Reg, HDSP_S_LOAD);
745 
746 		for (i = 0; i < HDSP_FIRMWARE_SIZE / 4; ++i) {
747 			hdsp_write(hdsp, HDSP_fifoData, cache[i]);
748 			if (hdsp_fifo_wait (hdsp, 127, HDSP_LONG_WAIT)) {
749 				dev_info(hdsp->card->dev,
750 					 "timeout during firmware loading\n");
751 				hdsp_write(hdsp, HDSP_control2Reg, HDSP_S200);
752 				return -EIO;
753 			}
754 		}
755 
756 		hdsp_fifo_wait(hdsp, 3, HDSP_LONG_WAIT);
757 		hdsp_write(hdsp, HDSP_control2Reg, HDSP_S200);
758 
759 		ssleep(3);
760 #ifdef SNDRV_BIG_ENDIAN
761 		hdsp->control2_register = HDSP_BIGENDIAN_MODE;
762 #else
763 		hdsp->control2_register = 0;
764 #endif
765 		hdsp_write (hdsp, HDSP_control2Reg, hdsp->control2_register);
766 		dev_info(hdsp->card->dev, "finished firmware loading\n");
767 
768 	}
769 	if (hdsp->state & HDSP_InitializationComplete) {
770 		dev_info(hdsp->card->dev,
771 			 "firmware loaded from cache, restoring defaults\n");
772 		spin_lock_irqsave(&hdsp->lock, flags);
773 		snd_hdsp_set_defaults(hdsp);
774 		spin_unlock_irqrestore(&hdsp->lock, flags);
775 	}
776 
777 	hdsp->state |= HDSP_FirmwareLoaded;
778 
779 	return 0;
780 }
781 
782 static int hdsp_get_iobox_version (struct hdsp *hdsp)
783 {
784 	if ((hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DllError) != 0) {
785 
786 		hdsp_write(hdsp, HDSP_control2Reg, HDSP_S_LOAD);
787 		hdsp_write(hdsp, HDSP_fifoData, 0);
788 
789 		if (hdsp_fifo_wait(hdsp, 0, HDSP_SHORT_WAIT) < 0) {
790 			hdsp_write(hdsp, HDSP_control2Reg, HDSP_S300);
791 			hdsp_write(hdsp, HDSP_control2Reg, HDSP_S_LOAD);
792 		}
793 
794 		hdsp_write(hdsp, HDSP_control2Reg, HDSP_S200 | HDSP_PROGRAM);
795 		hdsp_write (hdsp, HDSP_fifoData, 0);
796 		if (hdsp_fifo_wait(hdsp, 0, HDSP_SHORT_WAIT) < 0)
797 			goto set_multi;
798 
799 		hdsp_write(hdsp, HDSP_control2Reg, HDSP_S_LOAD);
800 		hdsp_write(hdsp, HDSP_fifoData, 0);
801 		if (hdsp_fifo_wait(hdsp, 0, HDSP_SHORT_WAIT) == 0) {
802 			hdsp->io_type = Digiface;
803 			dev_info(hdsp->card->dev, "Digiface found\n");
804 			return 0;
805 		}
806 
807 		hdsp_write(hdsp, HDSP_control2Reg, HDSP_S300);
808 		hdsp_write(hdsp, HDSP_control2Reg, HDSP_S_LOAD);
809 		hdsp_write(hdsp, HDSP_fifoData, 0);
810 		if (hdsp_fifo_wait(hdsp, 0, HDSP_SHORT_WAIT) == 0)
811 			goto set_multi;
812 
813 		hdsp_write(hdsp, HDSP_control2Reg, HDSP_S300);
814 		hdsp_write(hdsp, HDSP_control2Reg, HDSP_S_LOAD);
815 		hdsp_write(hdsp, HDSP_fifoData, 0);
816 		if (hdsp_fifo_wait(hdsp, 0, HDSP_SHORT_WAIT) < 0)
817 			goto set_multi;
818 
819 		hdsp->io_type = RPM;
820 		dev_info(hdsp->card->dev, "RPM found\n");
821 		return 0;
822 	} else {
823 		/* firmware was already loaded, get iobox type */
824 		if (hdsp_read(hdsp, HDSP_status2Register) & HDSP_version2)
825 			hdsp->io_type = RPM;
826 		else if (hdsp_read(hdsp, HDSP_status2Register) & HDSP_version1)
827 			hdsp->io_type = Multiface;
828 		else
829 			hdsp->io_type = Digiface;
830 	}
831 	return 0;
832 
833 set_multi:
834 	hdsp->io_type = Multiface;
835 	dev_info(hdsp->card->dev, "Multiface found\n");
836 	return 0;
837 }
838 
839 
840 static int hdsp_request_fw_loader(struct hdsp *hdsp);
841 
842 static int hdsp_check_for_firmware (struct hdsp *hdsp, int load_on_demand)
843 {
844 	if (hdsp->io_type == H9652 || hdsp->io_type == H9632)
845 		return 0;
846 	if ((hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DllError) != 0) {
847 		hdsp->state &= ~HDSP_FirmwareLoaded;
848 		if (! load_on_demand)
849 			return -EIO;
850 		dev_err(hdsp->card->dev, "firmware not present.\n");
851 		/* try to load firmware */
852 		if (! (hdsp->state & HDSP_FirmwareCached)) {
853 			if (! hdsp_request_fw_loader(hdsp))
854 				return 0;
855 			dev_err(hdsp->card->dev,
856 				   "No firmware loaded nor cached, please upload firmware.\n");
857 			return -EIO;
858 		}
859 		if (snd_hdsp_load_firmware_from_cache(hdsp) != 0) {
860 			dev_err(hdsp->card->dev,
861 				   "Firmware loading from cache failed, please upload manually.\n");
862 			return -EIO;
863 		}
864 	}
865 	return 0;
866 }
867 
868 
869 static int hdsp_fifo_wait(struct hdsp *hdsp, int count, int timeout)
870 {
871 	int i;
872 
873 	/* the fifoStatus registers reports on how many words
874 	   are available in the command FIFO.
875 	*/
876 
877 	for (i = 0; i < timeout; i++) {
878 
879 		if ((int)(hdsp_read (hdsp, HDSP_fifoStatus) & 0xff) <= count)
880 			return 0;
881 
882 		/* not very friendly, but we only do this during a firmware
883 		   load and changing the mixer, so we just put up with it.
884 		*/
885 
886 		udelay (100);
887 	}
888 
889 	dev_warn(hdsp->card->dev,
890 		 "wait for FIFO status <= %d failed after %d iterations\n",
891 		    count, timeout);
892 	return -1;
893 }
894 
895 static int hdsp_read_gain (struct hdsp *hdsp, unsigned int addr)
896 {
897 	if (addr >= HDSP_MATRIX_MIXER_SIZE)
898 		return 0;
899 
900 	return hdsp->mixer_matrix[addr];
901 }
902 
903 static int hdsp_write_gain(struct hdsp *hdsp, unsigned int addr, unsigned short data)
904 {
905 	unsigned int ad;
906 
907 	if (addr >= HDSP_MATRIX_MIXER_SIZE)
908 		return -1;
909 
910 	if (hdsp->io_type == H9652 || hdsp->io_type == H9632) {
911 
912 		/* from martin bjornsen:
913 
914 		   "You can only write dwords to the
915 		   mixer memory which contain two
916 		   mixer values in the low and high
917 		   word. So if you want to change
918 		   value 0 you have to read value 1
919 		   from the cache and write both to
920 		   the first dword in the mixer
921 		   memory."
922 		*/
923 
924 		if (hdsp->io_type == H9632 && addr >= 512)
925 			return 0;
926 
927 		if (hdsp->io_type == H9652 && addr >= 1352)
928 			return 0;
929 
930 		hdsp->mixer_matrix[addr] = data;
931 
932 
933 		/* `addr' addresses a 16-bit wide address, but
934 		   the address space accessed via hdsp_write
935 		   uses byte offsets. put another way, addr
936 		   varies from 0 to 1351, but to access the
937 		   corresponding memory location, we need
938 		   to access 0 to 2703 ...
939 		*/
940 		ad = addr/2;
941 
942 		hdsp_write (hdsp, 4096 + (ad*4),
943 			    (hdsp->mixer_matrix[(addr&0x7fe)+1] << 16) +
944 			    hdsp->mixer_matrix[addr&0x7fe]);
945 
946 		return 0;
947 
948 	} else {
949 
950 		ad = (addr << 16) + data;
951 
952 		if (hdsp_fifo_wait(hdsp, 127, HDSP_LONG_WAIT))
953 			return -1;
954 
955 		hdsp_write (hdsp, HDSP_fifoData, ad);
956 		hdsp->mixer_matrix[addr] = data;
957 
958 	}
959 
960 	return 0;
961 }
962 
963 static int snd_hdsp_use_is_exclusive(struct hdsp *hdsp)
964 {
965 	unsigned long flags;
966 	int ret = 1;
967 
968 	spin_lock_irqsave(&hdsp->lock, flags);
969 	if ((hdsp->playback_pid != hdsp->capture_pid) &&
970 	    (hdsp->playback_pid >= 0) && (hdsp->capture_pid >= 0))
971 		ret = 0;
972 	spin_unlock_irqrestore(&hdsp->lock, flags);
973 	return ret;
974 }
975 
976 static int hdsp_spdif_sample_rate(struct hdsp *hdsp)
977 {
978 	unsigned int status = hdsp_read(hdsp, HDSP_statusRegister);
979 	unsigned int rate_bits = (status & HDSP_spdifFrequencyMask);
980 
981 	/* For the 9632, the mask is different */
982 	if (hdsp->io_type == H9632)
983 		 rate_bits = (status & HDSP_spdifFrequencyMask_9632);
984 
985 	if (status & HDSP_SPDIFErrorFlag)
986 		return 0;
987 
988 	switch (rate_bits) {
989 	case HDSP_spdifFrequency32KHz: return 32000;
990 	case HDSP_spdifFrequency44_1KHz: return 44100;
991 	case HDSP_spdifFrequency48KHz: return 48000;
992 	case HDSP_spdifFrequency64KHz: return 64000;
993 	case HDSP_spdifFrequency88_2KHz: return 88200;
994 	case HDSP_spdifFrequency96KHz: return 96000;
995 	case HDSP_spdifFrequency128KHz:
996 		if (hdsp->io_type == H9632) return 128000;
997 		break;
998 	case HDSP_spdifFrequency176_4KHz:
999 		if (hdsp->io_type == H9632) return 176400;
1000 		break;
1001 	case HDSP_spdifFrequency192KHz:
1002 		if (hdsp->io_type == H9632) return 192000;
1003 		break;
1004 	default:
1005 		break;
1006 	}
1007 	dev_warn(hdsp->card->dev,
1008 		 "unknown spdif frequency status; bits = 0x%x, status = 0x%x\n",
1009 		 rate_bits, status);
1010 	return 0;
1011 }
1012 
1013 static int hdsp_external_sample_rate(struct hdsp *hdsp)
1014 {
1015 	unsigned int status2 = hdsp_read(hdsp, HDSP_status2Register);
1016 	unsigned int rate_bits = status2 & HDSP_systemFrequencyMask;
1017 
1018 	/* For the 9632 card, there seems to be no bit for indicating external
1019 	 * sample rate greater than 96kHz. The card reports the corresponding
1020 	 * single speed. So the best means seems to get spdif rate when
1021 	 * autosync reference is spdif */
1022 	if (hdsp->io_type == H9632 &&
1023 	    hdsp_autosync_ref(hdsp) == HDSP_AUTOSYNC_FROM_SPDIF)
1024 		 return hdsp_spdif_sample_rate(hdsp);
1025 
1026 	switch (rate_bits) {
1027 	case HDSP_systemFrequency32:   return 32000;
1028 	case HDSP_systemFrequency44_1: return 44100;
1029 	case HDSP_systemFrequency48:   return 48000;
1030 	case HDSP_systemFrequency64:   return 64000;
1031 	case HDSP_systemFrequency88_2: return 88200;
1032 	case HDSP_systemFrequency96:   return 96000;
1033 	default:
1034 		return 0;
1035 	}
1036 }
1037 
1038 static void hdsp_compute_period_size(struct hdsp *hdsp)
1039 {
1040 	hdsp->period_bytes = 1 << ((hdsp_decode_latency(hdsp->control_register) + 8));
1041 }
1042 
1043 static snd_pcm_uframes_t hdsp_hw_pointer(struct hdsp *hdsp)
1044 {
1045 	int position;
1046 
1047 	position = hdsp_read(hdsp, HDSP_statusRegister);
1048 
1049 	if (!hdsp->precise_ptr)
1050 		return (position & HDSP_BufferID) ? (hdsp->period_bytes / 4) : 0;
1051 
1052 	position &= HDSP_BufferPositionMask;
1053 	position /= 4;
1054 	position &= (hdsp->period_bytes/2) - 1;
1055 	return position;
1056 }
1057 
1058 static void hdsp_reset_hw_pointer(struct hdsp *hdsp)
1059 {
1060 	hdsp_write (hdsp, HDSP_resetPointer, 0);
1061 	if (hdsp->io_type == H9632 && hdsp->firmware_rev >= 152)
1062 		/* HDSP_resetPointer = HDSP_freqReg, which is strange and
1063 		 * requires (?) to write again DDS value after a reset pointer
1064 		 * (at least, it works like this) */
1065 		hdsp_write (hdsp, HDSP_freqReg, hdsp->dds_value);
1066 }
1067 
1068 static void hdsp_start_audio(struct hdsp *s)
1069 {
1070 	s->control_register |= (HDSP_AudioInterruptEnable | HDSP_Start);
1071 	hdsp_write(s, HDSP_controlRegister, s->control_register);
1072 }
1073 
1074 static void hdsp_stop_audio(struct hdsp *s)
1075 {
1076 	s->control_register &= ~(HDSP_Start | HDSP_AudioInterruptEnable);
1077 	hdsp_write(s, HDSP_controlRegister, s->control_register);
1078 }
1079 
1080 static void hdsp_silence_playback(struct hdsp *hdsp)
1081 {
1082 	memset(hdsp->playback_buffer, 0, HDSP_DMA_AREA_BYTES);
1083 }
1084 
1085 static int hdsp_set_interrupt_interval(struct hdsp *s, unsigned int frames)
1086 {
1087 	int n;
1088 
1089 	spin_lock_irq(&s->lock);
1090 
1091 	frames >>= 7;
1092 	n = 0;
1093 	while (frames) {
1094 		n++;
1095 		frames >>= 1;
1096 	}
1097 
1098 	s->control_register &= ~HDSP_LatencyMask;
1099 	s->control_register |= hdsp_encode_latency(n);
1100 
1101 	hdsp_write(s, HDSP_controlRegister, s->control_register);
1102 
1103 	hdsp_compute_period_size(s);
1104 
1105 	spin_unlock_irq(&s->lock);
1106 
1107 	return 0;
1108 }
1109 
1110 static void hdsp_set_dds_value(struct hdsp *hdsp, int rate)
1111 {
1112 	u64 n;
1113 
1114 	if (rate >= 112000)
1115 		rate /= 4;
1116 	else if (rate >= 56000)
1117 		rate /= 2;
1118 
1119 	n = DDS_NUMERATOR;
1120 	n = div_u64(n, rate);
1121 	/* n should be less than 2^32 for being written to FREQ register */
1122 	snd_BUG_ON(n >> 32);
1123 	/* HDSP_freqReg and HDSP_resetPointer are the same, so keep the DDS
1124 	   value to write it after a reset */
1125 	hdsp->dds_value = n;
1126 	hdsp_write(hdsp, HDSP_freqReg, hdsp->dds_value);
1127 }
1128 
1129 static int hdsp_set_rate(struct hdsp *hdsp, int rate, int called_internally)
1130 {
1131 	int reject_if_open = 0;
1132 	int current_rate;
1133 	int rate_bits;
1134 
1135 	/* ASSUMPTION: hdsp->lock is either held, or
1136 	   there is no need for it (e.g. during module
1137 	   initialization).
1138 	*/
1139 
1140 	if (!(hdsp->control_register & HDSP_ClockModeMaster)) {
1141 		if (called_internally) {
1142 			/* request from ctl or card initialization */
1143 			dev_err(hdsp->card->dev,
1144 				"device is not running as a clock master: cannot set sample rate.\n");
1145 			return -1;
1146 		} else {
1147 			/* hw_param request while in AutoSync mode */
1148 			int external_freq = hdsp_external_sample_rate(hdsp);
1149 			int spdif_freq = hdsp_spdif_sample_rate(hdsp);
1150 
1151 			if ((spdif_freq == external_freq*2) && (hdsp_autosync_ref(hdsp) >= HDSP_AUTOSYNC_FROM_ADAT1))
1152 				dev_info(hdsp->card->dev,
1153 					 "Detected ADAT in double speed mode\n");
1154 			else if (hdsp->io_type == H9632 && (spdif_freq == external_freq*4) && (hdsp_autosync_ref(hdsp) >= HDSP_AUTOSYNC_FROM_ADAT1))
1155 				dev_info(hdsp->card->dev,
1156 					 "Detected ADAT in quad speed mode\n");
1157 			else if (rate != external_freq) {
1158 				dev_info(hdsp->card->dev,
1159 					 "No AutoSync source for requested rate\n");
1160 				return -1;
1161 			}
1162 		}
1163 	}
1164 
1165 	current_rate = hdsp->system_sample_rate;
1166 
1167 	/* Changing from a "single speed" to a "double speed" rate is
1168 	   not allowed if any substreams are open. This is because
1169 	   such a change causes a shift in the location of
1170 	   the DMA buffers and a reduction in the number of available
1171 	   buffers.
1172 
1173 	   Note that a similar but essentially insoluble problem
1174 	   exists for externally-driven rate changes. All we can do
1175 	   is to flag rate changes in the read/write routines.  */
1176 
1177 	if (rate > 96000 && hdsp->io_type != H9632)
1178 		return -EINVAL;
1179 
1180 	switch (rate) {
1181 	case 32000:
1182 		if (current_rate > 48000)
1183 			reject_if_open = 1;
1184 		rate_bits = HDSP_Frequency32KHz;
1185 		break;
1186 	case 44100:
1187 		if (current_rate > 48000)
1188 			reject_if_open = 1;
1189 		rate_bits = HDSP_Frequency44_1KHz;
1190 		break;
1191 	case 48000:
1192 		if (current_rate > 48000)
1193 			reject_if_open = 1;
1194 		rate_bits = HDSP_Frequency48KHz;
1195 		break;
1196 	case 64000:
1197 		if (current_rate <= 48000 || current_rate > 96000)
1198 			reject_if_open = 1;
1199 		rate_bits = HDSP_Frequency64KHz;
1200 		break;
1201 	case 88200:
1202 		if (current_rate <= 48000 || current_rate > 96000)
1203 			reject_if_open = 1;
1204 		rate_bits = HDSP_Frequency88_2KHz;
1205 		break;
1206 	case 96000:
1207 		if (current_rate <= 48000 || current_rate > 96000)
1208 			reject_if_open = 1;
1209 		rate_bits = HDSP_Frequency96KHz;
1210 		break;
1211 	case 128000:
1212 		if (current_rate < 128000)
1213 			reject_if_open = 1;
1214 		rate_bits = HDSP_Frequency128KHz;
1215 		break;
1216 	case 176400:
1217 		if (current_rate < 128000)
1218 			reject_if_open = 1;
1219 		rate_bits = HDSP_Frequency176_4KHz;
1220 		break;
1221 	case 192000:
1222 		if (current_rate < 128000)
1223 			reject_if_open = 1;
1224 		rate_bits = HDSP_Frequency192KHz;
1225 		break;
1226 	default:
1227 		return -EINVAL;
1228 	}
1229 
1230 	if (reject_if_open && (hdsp->capture_pid >= 0 || hdsp->playback_pid >= 0)) {
1231 		dev_warn(hdsp->card->dev,
1232 			 "cannot change speed mode (capture PID = %d, playback PID = %d)\n",
1233 			    hdsp->capture_pid,
1234 			    hdsp->playback_pid);
1235 		return -EBUSY;
1236 	}
1237 
1238 	hdsp->control_register &= ~HDSP_FrequencyMask;
1239 	hdsp->control_register |= rate_bits;
1240 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
1241 
1242 	/* For HDSP9632 rev 152, need to set DDS value in FREQ register */
1243 	if (hdsp->io_type == H9632 && hdsp->firmware_rev >= 152)
1244 		hdsp_set_dds_value(hdsp, rate);
1245 
1246 	if (rate >= 128000) {
1247 		hdsp->channel_map = channel_map_H9632_qs;
1248 	} else if (rate > 48000) {
1249 		if (hdsp->io_type == H9632)
1250 			hdsp->channel_map = channel_map_H9632_ds;
1251 		else
1252 			hdsp->channel_map = channel_map_ds;
1253 	} else {
1254 		switch (hdsp->io_type) {
1255 		case RPM:
1256 		case Multiface:
1257 			hdsp->channel_map = channel_map_mf_ss;
1258 			break;
1259 		case Digiface:
1260 		case H9652:
1261 			hdsp->channel_map = channel_map_df_ss;
1262 			break;
1263 		case H9632:
1264 			hdsp->channel_map = channel_map_H9632_ss;
1265 			break;
1266 		default:
1267 			/* should never happen */
1268 			break;
1269 		}
1270 	}
1271 
1272 	hdsp->system_sample_rate = rate;
1273 
1274 	return 0;
1275 }
1276 
1277 /*----------------------------------------------------------------------------
1278    MIDI
1279   ----------------------------------------------------------------------------*/
1280 
1281 static unsigned char snd_hdsp_midi_read_byte (struct hdsp *hdsp, int id)
1282 {
1283 	/* the hardware already does the relevant bit-mask with 0xff */
1284 	if (id)
1285 		return hdsp_read(hdsp, HDSP_midiDataIn1);
1286 	else
1287 		return hdsp_read(hdsp, HDSP_midiDataIn0);
1288 }
1289 
1290 static void snd_hdsp_midi_write_byte (struct hdsp *hdsp, int id, int val)
1291 {
1292 	/* the hardware already does the relevant bit-mask with 0xff */
1293 	if (id)
1294 		hdsp_write(hdsp, HDSP_midiDataOut1, val);
1295 	else
1296 		hdsp_write(hdsp, HDSP_midiDataOut0, val);
1297 }
1298 
1299 static int snd_hdsp_midi_input_available (struct hdsp *hdsp, int id)
1300 {
1301 	if (id)
1302 		return (hdsp_read(hdsp, HDSP_midiStatusIn1) & 0xff);
1303 	else
1304 		return (hdsp_read(hdsp, HDSP_midiStatusIn0) & 0xff);
1305 }
1306 
1307 static int snd_hdsp_midi_output_possible (struct hdsp *hdsp, int id)
1308 {
1309 	int fifo_bytes_used;
1310 
1311 	if (id)
1312 		fifo_bytes_used = hdsp_read(hdsp, HDSP_midiStatusOut1) & 0xff;
1313 	else
1314 		fifo_bytes_used = hdsp_read(hdsp, HDSP_midiStatusOut0) & 0xff;
1315 
1316 	if (fifo_bytes_used < 128)
1317 		return  128 - fifo_bytes_used;
1318 	else
1319 		return 0;
1320 }
1321 
1322 static void snd_hdsp_flush_midi_input (struct hdsp *hdsp, int id)
1323 {
1324 	while (snd_hdsp_midi_input_available (hdsp, id))
1325 		snd_hdsp_midi_read_byte (hdsp, id);
1326 }
1327 
1328 static int snd_hdsp_midi_output_write (struct hdsp_midi *hmidi)
1329 {
1330 	unsigned long flags;
1331 	int n_pending;
1332 	int to_write;
1333 	int i;
1334 	unsigned char buf[128];
1335 
1336 	/* Output is not interrupt driven */
1337 
1338 	spin_lock_irqsave (&hmidi->lock, flags);
1339 	if (hmidi->output) {
1340 		if (!snd_rawmidi_transmit_empty (hmidi->output)) {
1341 			if ((n_pending = snd_hdsp_midi_output_possible (hmidi->hdsp, hmidi->id)) > 0) {
1342 				if (n_pending > (int)sizeof (buf))
1343 					n_pending = sizeof (buf);
1344 
1345 				if ((to_write = snd_rawmidi_transmit (hmidi->output, buf, n_pending)) > 0) {
1346 					for (i = 0; i < to_write; ++i)
1347 						snd_hdsp_midi_write_byte (hmidi->hdsp, hmidi->id, buf[i]);
1348 				}
1349 			}
1350 		}
1351 	}
1352 	spin_unlock_irqrestore (&hmidi->lock, flags);
1353 	return 0;
1354 }
1355 
1356 static int snd_hdsp_midi_input_read (struct hdsp_midi *hmidi)
1357 {
1358 	unsigned char buf[128]; /* this buffer is designed to match the MIDI input FIFO size */
1359 	unsigned long flags;
1360 	int n_pending;
1361 	int i;
1362 
1363 	spin_lock_irqsave (&hmidi->lock, flags);
1364 	if ((n_pending = snd_hdsp_midi_input_available (hmidi->hdsp, hmidi->id)) > 0) {
1365 		if (hmidi->input) {
1366 			if (n_pending > (int)sizeof (buf))
1367 				n_pending = sizeof (buf);
1368 			for (i = 0; i < n_pending; ++i)
1369 				buf[i] = snd_hdsp_midi_read_byte (hmidi->hdsp, hmidi->id);
1370 			if (n_pending)
1371 				snd_rawmidi_receive (hmidi->input, buf, n_pending);
1372 		} else {
1373 			/* flush the MIDI input FIFO */
1374 			while (--n_pending)
1375 				snd_hdsp_midi_read_byte (hmidi->hdsp, hmidi->id);
1376 		}
1377 	}
1378 	hmidi->pending = 0;
1379 	if (hmidi->id)
1380 		hmidi->hdsp->control_register |= HDSP_Midi1InterruptEnable;
1381 	else
1382 		hmidi->hdsp->control_register |= HDSP_Midi0InterruptEnable;
1383 	hdsp_write(hmidi->hdsp, HDSP_controlRegister, hmidi->hdsp->control_register);
1384 	spin_unlock_irqrestore (&hmidi->lock, flags);
1385 	return snd_hdsp_midi_output_write (hmidi);
1386 }
1387 
1388 static void snd_hdsp_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
1389 {
1390 	struct hdsp *hdsp;
1391 	struct hdsp_midi *hmidi;
1392 	unsigned long flags;
1393 	u32 ie;
1394 
1395 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;
1396 	hdsp = hmidi->hdsp;
1397 	ie = hmidi->id ? HDSP_Midi1InterruptEnable : HDSP_Midi0InterruptEnable;
1398 	spin_lock_irqsave (&hdsp->lock, flags);
1399 	if (up) {
1400 		if (!(hdsp->control_register & ie)) {
1401 			snd_hdsp_flush_midi_input (hdsp, hmidi->id);
1402 			hdsp->control_register |= ie;
1403 		}
1404 	} else {
1405 		hdsp->control_register &= ~ie;
1406 		tasklet_kill(&hdsp->midi_tasklet);
1407 	}
1408 
1409 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
1410 	spin_unlock_irqrestore (&hdsp->lock, flags);
1411 }
1412 
1413 static void snd_hdsp_midi_output_timer(struct timer_list *t)
1414 {
1415 	struct hdsp_midi *hmidi = from_timer(hmidi, t, timer);
1416 	unsigned long flags;
1417 
1418 	snd_hdsp_midi_output_write(hmidi);
1419 	spin_lock_irqsave (&hmidi->lock, flags);
1420 
1421 	/* this does not bump hmidi->istimer, because the
1422 	   kernel automatically removed the timer when it
1423 	   expired, and we are now adding it back, thus
1424 	   leaving istimer wherever it was set before.
1425 	*/
1426 
1427 	if (hmidi->istimer)
1428 		mod_timer(&hmidi->timer, 1 + jiffies);
1429 
1430 	spin_unlock_irqrestore (&hmidi->lock, flags);
1431 }
1432 
1433 static void snd_hdsp_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
1434 {
1435 	struct hdsp_midi *hmidi;
1436 	unsigned long flags;
1437 
1438 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;
1439 	spin_lock_irqsave (&hmidi->lock, flags);
1440 	if (up) {
1441 		if (!hmidi->istimer) {
1442 			timer_setup(&hmidi->timer, snd_hdsp_midi_output_timer,
1443 				    0);
1444 			mod_timer(&hmidi->timer, 1 + jiffies);
1445 			hmidi->istimer++;
1446 		}
1447 	} else {
1448 		if (hmidi->istimer && --hmidi->istimer <= 0)
1449 			del_timer (&hmidi->timer);
1450 	}
1451 	spin_unlock_irqrestore (&hmidi->lock, flags);
1452 	if (up)
1453 		snd_hdsp_midi_output_write(hmidi);
1454 }
1455 
1456 static int snd_hdsp_midi_input_open(struct snd_rawmidi_substream *substream)
1457 {
1458 	struct hdsp_midi *hmidi;
1459 
1460 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;
1461 	spin_lock_irq (&hmidi->lock);
1462 	snd_hdsp_flush_midi_input (hmidi->hdsp, hmidi->id);
1463 	hmidi->input = substream;
1464 	spin_unlock_irq (&hmidi->lock);
1465 
1466 	return 0;
1467 }
1468 
1469 static int snd_hdsp_midi_output_open(struct snd_rawmidi_substream *substream)
1470 {
1471 	struct hdsp_midi *hmidi;
1472 
1473 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;
1474 	spin_lock_irq (&hmidi->lock);
1475 	hmidi->output = substream;
1476 	spin_unlock_irq (&hmidi->lock);
1477 
1478 	return 0;
1479 }
1480 
1481 static int snd_hdsp_midi_input_close(struct snd_rawmidi_substream *substream)
1482 {
1483 	struct hdsp_midi *hmidi;
1484 
1485 	snd_hdsp_midi_input_trigger (substream, 0);
1486 
1487 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;
1488 	spin_lock_irq (&hmidi->lock);
1489 	hmidi->input = NULL;
1490 	spin_unlock_irq (&hmidi->lock);
1491 
1492 	return 0;
1493 }
1494 
1495 static int snd_hdsp_midi_output_close(struct snd_rawmidi_substream *substream)
1496 {
1497 	struct hdsp_midi *hmidi;
1498 
1499 	snd_hdsp_midi_output_trigger (substream, 0);
1500 
1501 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;
1502 	spin_lock_irq (&hmidi->lock);
1503 	hmidi->output = NULL;
1504 	spin_unlock_irq (&hmidi->lock);
1505 
1506 	return 0;
1507 }
1508 
1509 static const struct snd_rawmidi_ops snd_hdsp_midi_output =
1510 {
1511 	.open =		snd_hdsp_midi_output_open,
1512 	.close =	snd_hdsp_midi_output_close,
1513 	.trigger =	snd_hdsp_midi_output_trigger,
1514 };
1515 
1516 static const struct snd_rawmidi_ops snd_hdsp_midi_input =
1517 {
1518 	.open =		snd_hdsp_midi_input_open,
1519 	.close =	snd_hdsp_midi_input_close,
1520 	.trigger =	snd_hdsp_midi_input_trigger,
1521 };
1522 
1523 static int snd_hdsp_create_midi (struct snd_card *card, struct hdsp *hdsp, int id)
1524 {
1525 	char buf[40];
1526 
1527 	hdsp->midi[id].id = id;
1528 	hdsp->midi[id].rmidi = NULL;
1529 	hdsp->midi[id].input = NULL;
1530 	hdsp->midi[id].output = NULL;
1531 	hdsp->midi[id].hdsp = hdsp;
1532 	hdsp->midi[id].istimer = 0;
1533 	hdsp->midi[id].pending = 0;
1534 	spin_lock_init (&hdsp->midi[id].lock);
1535 
1536 	snprintf(buf, sizeof(buf), "%s MIDI %d", card->shortname, id + 1);
1537 	if (snd_rawmidi_new (card, buf, id, 1, 1, &hdsp->midi[id].rmidi) < 0)
1538 		return -1;
1539 
1540 	sprintf(hdsp->midi[id].rmidi->name, "HDSP MIDI %d", id+1);
1541 	hdsp->midi[id].rmidi->private_data = &hdsp->midi[id];
1542 
1543 	snd_rawmidi_set_ops (hdsp->midi[id].rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_hdsp_midi_output);
1544 	snd_rawmidi_set_ops (hdsp->midi[id].rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_hdsp_midi_input);
1545 
1546 	hdsp->midi[id].rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT |
1547 		SNDRV_RAWMIDI_INFO_INPUT |
1548 		SNDRV_RAWMIDI_INFO_DUPLEX;
1549 
1550 	return 0;
1551 }
1552 
1553 /*-----------------------------------------------------------------------------
1554   Control Interface
1555   ----------------------------------------------------------------------------*/
1556 
1557 static u32 snd_hdsp_convert_from_aes(struct snd_aes_iec958 *aes)
1558 {
1559 	u32 val = 0;
1560 	val |= (aes->status[0] & IEC958_AES0_PROFESSIONAL) ? HDSP_SPDIFProfessional : 0;
1561 	val |= (aes->status[0] & IEC958_AES0_NONAUDIO) ? HDSP_SPDIFNonAudio : 0;
1562 	if (val & HDSP_SPDIFProfessional)
1563 		val |= (aes->status[0] & IEC958_AES0_PRO_EMPHASIS_5015) ? HDSP_SPDIFEmphasis : 0;
1564 	else
1565 		val |= (aes->status[0] & IEC958_AES0_CON_EMPHASIS_5015) ? HDSP_SPDIFEmphasis : 0;
1566 	return val;
1567 }
1568 
1569 static void snd_hdsp_convert_to_aes(struct snd_aes_iec958 *aes, u32 val)
1570 {
1571 	aes->status[0] = ((val & HDSP_SPDIFProfessional) ? IEC958_AES0_PROFESSIONAL : 0) |
1572 			 ((val & HDSP_SPDIFNonAudio) ? IEC958_AES0_NONAUDIO : 0);
1573 	if (val & HDSP_SPDIFProfessional)
1574 		aes->status[0] |= (val & HDSP_SPDIFEmphasis) ? IEC958_AES0_PRO_EMPHASIS_5015 : 0;
1575 	else
1576 		aes->status[0] |= (val & HDSP_SPDIFEmphasis) ? IEC958_AES0_CON_EMPHASIS_5015 : 0;
1577 }
1578 
1579 static int snd_hdsp_control_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1580 {
1581 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1582 	uinfo->count = 1;
1583 	return 0;
1584 }
1585 
1586 static int snd_hdsp_control_spdif_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1587 {
1588 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1589 
1590 	snd_hdsp_convert_to_aes(&ucontrol->value.iec958, hdsp->creg_spdif);
1591 	return 0;
1592 }
1593 
1594 static int snd_hdsp_control_spdif_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1595 {
1596 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1597 	int change;
1598 	u32 val;
1599 
1600 	val = snd_hdsp_convert_from_aes(&ucontrol->value.iec958);
1601 	spin_lock_irq(&hdsp->lock);
1602 	change = val != hdsp->creg_spdif;
1603 	hdsp->creg_spdif = val;
1604 	spin_unlock_irq(&hdsp->lock);
1605 	return change;
1606 }
1607 
1608 static int snd_hdsp_control_spdif_stream_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1609 {
1610 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1611 	uinfo->count = 1;
1612 	return 0;
1613 }
1614 
1615 static int snd_hdsp_control_spdif_stream_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1616 {
1617 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1618 
1619 	snd_hdsp_convert_to_aes(&ucontrol->value.iec958, hdsp->creg_spdif_stream);
1620 	return 0;
1621 }
1622 
1623 static int snd_hdsp_control_spdif_stream_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1624 {
1625 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1626 	int change;
1627 	u32 val;
1628 
1629 	val = snd_hdsp_convert_from_aes(&ucontrol->value.iec958);
1630 	spin_lock_irq(&hdsp->lock);
1631 	change = val != hdsp->creg_spdif_stream;
1632 	hdsp->creg_spdif_stream = val;
1633 	hdsp->control_register &= ~(HDSP_SPDIFProfessional | HDSP_SPDIFNonAudio | HDSP_SPDIFEmphasis);
1634 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register |= val);
1635 	spin_unlock_irq(&hdsp->lock);
1636 	return change;
1637 }
1638 
1639 static int snd_hdsp_control_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1640 {
1641 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1642 	uinfo->count = 1;
1643 	return 0;
1644 }
1645 
1646 static int snd_hdsp_control_spdif_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1647 {
1648 	ucontrol->value.iec958.status[0] = kcontrol->private_value;
1649 	return 0;
1650 }
1651 
1652 #define HDSP_SPDIF_IN(xname, xindex) \
1653 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1654   .name = xname, \
1655   .index = xindex, \
1656   .info = snd_hdsp_info_spdif_in, \
1657   .get = snd_hdsp_get_spdif_in, \
1658   .put = snd_hdsp_put_spdif_in }
1659 
1660 static unsigned int hdsp_spdif_in(struct hdsp *hdsp)
1661 {
1662 	return hdsp_decode_spdif_in(hdsp->control_register & HDSP_SPDIFInputMask);
1663 }
1664 
1665 static int hdsp_set_spdif_input(struct hdsp *hdsp, int in)
1666 {
1667 	hdsp->control_register &= ~HDSP_SPDIFInputMask;
1668 	hdsp->control_register |= hdsp_encode_spdif_in(in);
1669 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
1670 	return 0;
1671 }
1672 
1673 static int snd_hdsp_info_spdif_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1674 {
1675 	static const char * const texts[4] = {
1676 		"Optical", "Coaxial", "Internal", "AES"
1677 	};
1678 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1679 
1680 	return snd_ctl_enum_info(uinfo, 1, (hdsp->io_type == H9632) ? 4 : 3,
1681 				 texts);
1682 }
1683 
1684 static int snd_hdsp_get_spdif_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1685 {
1686 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1687 
1688 	ucontrol->value.enumerated.item[0] = hdsp_spdif_in(hdsp);
1689 	return 0;
1690 }
1691 
1692 static int snd_hdsp_put_spdif_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1693 {
1694 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1695 	int change;
1696 	unsigned int val;
1697 
1698 	if (!snd_hdsp_use_is_exclusive(hdsp))
1699 		return -EBUSY;
1700 	val = ucontrol->value.enumerated.item[0] % ((hdsp->io_type == H9632) ? 4 : 3);
1701 	spin_lock_irq(&hdsp->lock);
1702 	change = val != hdsp_spdif_in(hdsp);
1703 	if (change)
1704 		hdsp_set_spdif_input(hdsp, val);
1705 	spin_unlock_irq(&hdsp->lock);
1706 	return change;
1707 }
1708 
1709 #define HDSP_TOGGLE_SETTING(xname, xindex) \
1710 {   .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1711 	.name = xname, \
1712 	.private_value = xindex, \
1713 	.info = snd_hdsp_info_toggle_setting, \
1714 	.get = snd_hdsp_get_toggle_setting, \
1715 	.put = snd_hdsp_put_toggle_setting \
1716 }
1717 
1718 static int hdsp_toggle_setting(struct hdsp *hdsp, u32 regmask)
1719 {
1720 	return (hdsp->control_register & regmask) ? 1 : 0;
1721 }
1722 
1723 static int hdsp_set_toggle_setting(struct hdsp *hdsp, u32 regmask, int out)
1724 {
1725 	if (out)
1726 		hdsp->control_register |= regmask;
1727 	else
1728 		hdsp->control_register &= ~regmask;
1729 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
1730 
1731 	return 0;
1732 }
1733 
1734 #define snd_hdsp_info_toggle_setting		   snd_ctl_boolean_mono_info
1735 
1736 static int snd_hdsp_get_toggle_setting(struct snd_kcontrol *kcontrol,
1737 		struct snd_ctl_elem_value *ucontrol)
1738 {
1739 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1740 	u32 regmask = kcontrol->private_value;
1741 
1742 	spin_lock_irq(&hdsp->lock);
1743 	ucontrol->value.integer.value[0] = hdsp_toggle_setting(hdsp, regmask);
1744 	spin_unlock_irq(&hdsp->lock);
1745 	return 0;
1746 }
1747 
1748 static int snd_hdsp_put_toggle_setting(struct snd_kcontrol *kcontrol,
1749 		struct snd_ctl_elem_value *ucontrol)
1750 {
1751 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1752 	u32 regmask = kcontrol->private_value;
1753 	int change;
1754 	unsigned int val;
1755 
1756 	if (!snd_hdsp_use_is_exclusive(hdsp))
1757 		return -EBUSY;
1758 	val = ucontrol->value.integer.value[0] & 1;
1759 	spin_lock_irq(&hdsp->lock);
1760 	change = (int) val != hdsp_toggle_setting(hdsp, regmask);
1761 	if (change)
1762 		hdsp_set_toggle_setting(hdsp, regmask, val);
1763 	spin_unlock_irq(&hdsp->lock);
1764 	return change;
1765 }
1766 
1767 #define HDSP_SPDIF_SAMPLE_RATE(xname, xindex) \
1768 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1769   .name = xname, \
1770   .index = xindex, \
1771   .access = SNDRV_CTL_ELEM_ACCESS_READ, \
1772   .info = snd_hdsp_info_spdif_sample_rate, \
1773   .get = snd_hdsp_get_spdif_sample_rate \
1774 }
1775 
1776 static int snd_hdsp_info_spdif_sample_rate(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1777 {
1778 	static const char * const texts[] = {
1779 		"32000", "44100", "48000", "64000", "88200", "96000",
1780 		"None", "128000", "176400", "192000"
1781 	};
1782 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1783 
1784 	return snd_ctl_enum_info(uinfo, 1, (hdsp->io_type == H9632) ? 10 : 7,
1785 				 texts);
1786 }
1787 
1788 static int snd_hdsp_get_spdif_sample_rate(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1789 {
1790 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1791 
1792 	switch (hdsp_spdif_sample_rate(hdsp)) {
1793 	case 32000:
1794 		ucontrol->value.enumerated.item[0] = 0;
1795 		break;
1796 	case 44100:
1797 		ucontrol->value.enumerated.item[0] = 1;
1798 		break;
1799 	case 48000:
1800 		ucontrol->value.enumerated.item[0] = 2;
1801 		break;
1802 	case 64000:
1803 		ucontrol->value.enumerated.item[0] = 3;
1804 		break;
1805 	case 88200:
1806 		ucontrol->value.enumerated.item[0] = 4;
1807 		break;
1808 	case 96000:
1809 		ucontrol->value.enumerated.item[0] = 5;
1810 		break;
1811 	case 128000:
1812 		ucontrol->value.enumerated.item[0] = 7;
1813 		break;
1814 	case 176400:
1815 		ucontrol->value.enumerated.item[0] = 8;
1816 		break;
1817 	case 192000:
1818 		ucontrol->value.enumerated.item[0] = 9;
1819 		break;
1820 	default:
1821 		ucontrol->value.enumerated.item[0] = 6;
1822 	}
1823 	return 0;
1824 }
1825 
1826 #define HDSP_SYSTEM_SAMPLE_RATE(xname, xindex) \
1827 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1828   .name = xname, \
1829   .index = xindex, \
1830   .access = SNDRV_CTL_ELEM_ACCESS_READ, \
1831   .info = snd_hdsp_info_system_sample_rate, \
1832   .get = snd_hdsp_get_system_sample_rate \
1833 }
1834 
1835 static int snd_hdsp_info_system_sample_rate(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1836 {
1837 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1838 	uinfo->count = 1;
1839 	return 0;
1840 }
1841 
1842 static int snd_hdsp_get_system_sample_rate(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1843 {
1844 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1845 
1846 	ucontrol->value.enumerated.item[0] = hdsp->system_sample_rate;
1847 	return 0;
1848 }
1849 
1850 #define HDSP_AUTOSYNC_SAMPLE_RATE(xname, xindex) \
1851 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1852   .name = xname, \
1853   .index = xindex, \
1854   .access = SNDRV_CTL_ELEM_ACCESS_READ, \
1855   .info = snd_hdsp_info_autosync_sample_rate, \
1856   .get = snd_hdsp_get_autosync_sample_rate \
1857 }
1858 
1859 static int snd_hdsp_info_autosync_sample_rate(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1860 {
1861 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1862 	static const char * const texts[] = {
1863 		"32000", "44100", "48000", "64000", "88200", "96000",
1864 		"None", "128000", "176400", "192000"
1865 	};
1866 
1867 	return snd_ctl_enum_info(uinfo, 1, (hdsp->io_type == H9632) ? 10 : 7,
1868 				 texts);
1869 }
1870 
1871 static int snd_hdsp_get_autosync_sample_rate(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1872 {
1873 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1874 
1875 	switch (hdsp_external_sample_rate(hdsp)) {
1876 	case 32000:
1877 		ucontrol->value.enumerated.item[0] = 0;
1878 		break;
1879 	case 44100:
1880 		ucontrol->value.enumerated.item[0] = 1;
1881 		break;
1882 	case 48000:
1883 		ucontrol->value.enumerated.item[0] = 2;
1884 		break;
1885 	case 64000:
1886 		ucontrol->value.enumerated.item[0] = 3;
1887 		break;
1888 	case 88200:
1889 		ucontrol->value.enumerated.item[0] = 4;
1890 		break;
1891 	case 96000:
1892 		ucontrol->value.enumerated.item[0] = 5;
1893 		break;
1894 	case 128000:
1895 		ucontrol->value.enumerated.item[0] = 7;
1896 		break;
1897 	case 176400:
1898 		ucontrol->value.enumerated.item[0] = 8;
1899 		break;
1900 	case 192000:
1901 		ucontrol->value.enumerated.item[0] = 9;
1902 		break;
1903 	default:
1904 		ucontrol->value.enumerated.item[0] = 6;
1905 	}
1906 	return 0;
1907 }
1908 
1909 #define HDSP_SYSTEM_CLOCK_MODE(xname, xindex) \
1910 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1911   .name = xname, \
1912   .index = xindex, \
1913   .access = SNDRV_CTL_ELEM_ACCESS_READ, \
1914   .info = snd_hdsp_info_system_clock_mode, \
1915   .get = snd_hdsp_get_system_clock_mode \
1916 }
1917 
1918 static int hdsp_system_clock_mode(struct hdsp *hdsp)
1919 {
1920 	if (hdsp->control_register & HDSP_ClockModeMaster)
1921 		return 0;
1922 	else if (hdsp_external_sample_rate(hdsp) != hdsp->system_sample_rate)
1923 			return 0;
1924 	return 1;
1925 }
1926 
1927 static int snd_hdsp_info_system_clock_mode(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1928 {
1929 	static const char * const texts[] = {"Master", "Slave" };
1930 
1931 	return snd_ctl_enum_info(uinfo, 1, 2, texts);
1932 }
1933 
1934 static int snd_hdsp_get_system_clock_mode(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1935 {
1936 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1937 
1938 	ucontrol->value.enumerated.item[0] = hdsp_system_clock_mode(hdsp);
1939 	return 0;
1940 }
1941 
1942 #define HDSP_CLOCK_SOURCE(xname, xindex) \
1943 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1944   .name = xname, \
1945   .index = xindex, \
1946   .info = snd_hdsp_info_clock_source, \
1947   .get = snd_hdsp_get_clock_source, \
1948   .put = snd_hdsp_put_clock_source \
1949 }
1950 
1951 static int hdsp_clock_source(struct hdsp *hdsp)
1952 {
1953 	if (hdsp->control_register & HDSP_ClockModeMaster) {
1954 		switch (hdsp->system_sample_rate) {
1955 		case 32000:
1956 			return 1;
1957 		case 44100:
1958 			return 2;
1959 		case 48000:
1960 			return 3;
1961 		case 64000:
1962 			return 4;
1963 		case 88200:
1964 			return 5;
1965 		case 96000:
1966 			return 6;
1967 		case 128000:
1968 			return 7;
1969 		case 176400:
1970 			return 8;
1971 		case 192000:
1972 			return 9;
1973 		default:
1974 			return 3;
1975 		}
1976 	} else {
1977 		return 0;
1978 	}
1979 }
1980 
1981 static int hdsp_set_clock_source(struct hdsp *hdsp, int mode)
1982 {
1983 	int rate;
1984 	switch (mode) {
1985 	case HDSP_CLOCK_SOURCE_AUTOSYNC:
1986 		if (hdsp_external_sample_rate(hdsp) != 0) {
1987 		    if (!hdsp_set_rate(hdsp, hdsp_external_sample_rate(hdsp), 1)) {
1988 			hdsp->control_register &= ~HDSP_ClockModeMaster;
1989 			hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
1990 			return 0;
1991 		    }
1992 		}
1993 		return -1;
1994 	case HDSP_CLOCK_SOURCE_INTERNAL_32KHZ:
1995 		rate = 32000;
1996 		break;
1997 	case HDSP_CLOCK_SOURCE_INTERNAL_44_1KHZ:
1998 		rate = 44100;
1999 		break;
2000 	case HDSP_CLOCK_SOURCE_INTERNAL_48KHZ:
2001 		rate = 48000;
2002 		break;
2003 	case HDSP_CLOCK_SOURCE_INTERNAL_64KHZ:
2004 		rate = 64000;
2005 		break;
2006 	case HDSP_CLOCK_SOURCE_INTERNAL_88_2KHZ:
2007 		rate = 88200;
2008 		break;
2009 	case HDSP_CLOCK_SOURCE_INTERNAL_96KHZ:
2010 		rate = 96000;
2011 		break;
2012 	case HDSP_CLOCK_SOURCE_INTERNAL_128KHZ:
2013 		rate = 128000;
2014 		break;
2015 	case HDSP_CLOCK_SOURCE_INTERNAL_176_4KHZ:
2016 		rate = 176400;
2017 		break;
2018 	case HDSP_CLOCK_SOURCE_INTERNAL_192KHZ:
2019 		rate = 192000;
2020 		break;
2021 	default:
2022 		rate = 48000;
2023 	}
2024 	hdsp->control_register |= HDSP_ClockModeMaster;
2025 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2026 	hdsp_set_rate(hdsp, rate, 1);
2027 	return 0;
2028 }
2029 
2030 static int snd_hdsp_info_clock_source(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2031 {
2032 	static const char * const texts[] = {
2033 		"AutoSync", "Internal 32.0 kHz", "Internal 44.1 kHz",
2034 		"Internal 48.0 kHz", "Internal 64.0 kHz", "Internal 88.2 kHz",
2035 		"Internal 96.0 kHz", "Internal 128 kHz", "Internal 176.4 kHz",
2036 		"Internal 192.0 KHz"
2037 	};
2038 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2039 
2040 	return snd_ctl_enum_info(uinfo, 1, (hdsp->io_type == H9632) ? 10 : 7,
2041 				 texts);
2042 }
2043 
2044 static int snd_hdsp_get_clock_source(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2045 {
2046 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2047 
2048 	ucontrol->value.enumerated.item[0] = hdsp_clock_source(hdsp);
2049 	return 0;
2050 }
2051 
2052 static int snd_hdsp_put_clock_source(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2053 {
2054 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2055 	int change;
2056 	int val;
2057 
2058 	if (!snd_hdsp_use_is_exclusive(hdsp))
2059 		return -EBUSY;
2060 	val = ucontrol->value.enumerated.item[0];
2061 	if (val < 0) val = 0;
2062 	if (hdsp->io_type == H9632) {
2063 		if (val > 9)
2064 			val = 9;
2065 	} else {
2066 		if (val > 6)
2067 			val = 6;
2068 	}
2069 	spin_lock_irq(&hdsp->lock);
2070 	if (val != hdsp_clock_source(hdsp))
2071 		change = (hdsp_set_clock_source(hdsp, val) == 0) ? 1 : 0;
2072 	else
2073 		change = 0;
2074 	spin_unlock_irq(&hdsp->lock);
2075 	return change;
2076 }
2077 
2078 #define snd_hdsp_info_clock_source_lock		snd_ctl_boolean_mono_info
2079 
2080 static int snd_hdsp_get_clock_source_lock(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2081 {
2082 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2083 
2084 	ucontrol->value.integer.value[0] = hdsp->clock_source_locked;
2085 	return 0;
2086 }
2087 
2088 static int snd_hdsp_put_clock_source_lock(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2089 {
2090 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2091 	int change;
2092 
2093 	change = (int)ucontrol->value.integer.value[0] != hdsp->clock_source_locked;
2094 	if (change)
2095 		hdsp->clock_source_locked = !!ucontrol->value.integer.value[0];
2096 	return change;
2097 }
2098 
2099 #define HDSP_DA_GAIN(xname, xindex) \
2100 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2101   .name = xname, \
2102   .index = xindex, \
2103   .info = snd_hdsp_info_da_gain, \
2104   .get = snd_hdsp_get_da_gain, \
2105   .put = snd_hdsp_put_da_gain \
2106 }
2107 
2108 static int hdsp_da_gain(struct hdsp *hdsp)
2109 {
2110 	switch (hdsp->control_register & HDSP_DAGainMask) {
2111 	case HDSP_DAGainHighGain:
2112 		return 0;
2113 	case HDSP_DAGainPlus4dBu:
2114 		return 1;
2115 	case HDSP_DAGainMinus10dBV:
2116 		return 2;
2117 	default:
2118 		return 1;
2119 	}
2120 }
2121 
2122 static int hdsp_set_da_gain(struct hdsp *hdsp, int mode)
2123 {
2124 	hdsp->control_register &= ~HDSP_DAGainMask;
2125 	switch (mode) {
2126 	case 0:
2127 		hdsp->control_register |= HDSP_DAGainHighGain;
2128 		break;
2129 	case 1:
2130 		hdsp->control_register |= HDSP_DAGainPlus4dBu;
2131 		break;
2132 	case 2:
2133 		hdsp->control_register |= HDSP_DAGainMinus10dBV;
2134 		break;
2135 	default:
2136 		return -1;
2137 
2138 	}
2139 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2140 	return 0;
2141 }
2142 
2143 static int snd_hdsp_info_da_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2144 {
2145 	static const char * const texts[] = {"Hi Gain", "+4 dBu", "-10 dbV"};
2146 
2147 	return snd_ctl_enum_info(uinfo, 1, 3, texts);
2148 }
2149 
2150 static int snd_hdsp_get_da_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2151 {
2152 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2153 
2154 	ucontrol->value.enumerated.item[0] = hdsp_da_gain(hdsp);
2155 	return 0;
2156 }
2157 
2158 static int snd_hdsp_put_da_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2159 {
2160 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2161 	int change;
2162 	int val;
2163 
2164 	if (!snd_hdsp_use_is_exclusive(hdsp))
2165 		return -EBUSY;
2166 	val = ucontrol->value.enumerated.item[0];
2167 	if (val < 0) val = 0;
2168 	if (val > 2) val = 2;
2169 	spin_lock_irq(&hdsp->lock);
2170 	if (val != hdsp_da_gain(hdsp))
2171 		change = (hdsp_set_da_gain(hdsp, val) == 0) ? 1 : 0;
2172 	else
2173 		change = 0;
2174 	spin_unlock_irq(&hdsp->lock);
2175 	return change;
2176 }
2177 
2178 #define HDSP_AD_GAIN(xname, xindex) \
2179 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2180   .name = xname, \
2181   .index = xindex, \
2182   .info = snd_hdsp_info_ad_gain, \
2183   .get = snd_hdsp_get_ad_gain, \
2184   .put = snd_hdsp_put_ad_gain \
2185 }
2186 
2187 static int hdsp_ad_gain(struct hdsp *hdsp)
2188 {
2189 	switch (hdsp->control_register & HDSP_ADGainMask) {
2190 	case HDSP_ADGainMinus10dBV:
2191 		return 0;
2192 	case HDSP_ADGainPlus4dBu:
2193 		return 1;
2194 	case HDSP_ADGainLowGain:
2195 		return 2;
2196 	default:
2197 		return 1;
2198 	}
2199 }
2200 
2201 static int hdsp_set_ad_gain(struct hdsp *hdsp, int mode)
2202 {
2203 	hdsp->control_register &= ~HDSP_ADGainMask;
2204 	switch (mode) {
2205 	case 0:
2206 		hdsp->control_register |= HDSP_ADGainMinus10dBV;
2207 		break;
2208 	case 1:
2209 		hdsp->control_register |= HDSP_ADGainPlus4dBu;
2210 		break;
2211 	case 2:
2212 		hdsp->control_register |= HDSP_ADGainLowGain;
2213 		break;
2214 	default:
2215 		return -1;
2216 
2217 	}
2218 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2219 	return 0;
2220 }
2221 
2222 static int snd_hdsp_info_ad_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2223 {
2224 	static const char * const texts[] = {"-10 dBV", "+4 dBu", "Lo Gain"};
2225 
2226 	return snd_ctl_enum_info(uinfo, 1, 3, texts);
2227 }
2228 
2229 static int snd_hdsp_get_ad_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2230 {
2231 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2232 
2233 	ucontrol->value.enumerated.item[0] = hdsp_ad_gain(hdsp);
2234 	return 0;
2235 }
2236 
2237 static int snd_hdsp_put_ad_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2238 {
2239 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2240 	int change;
2241 	int val;
2242 
2243 	if (!snd_hdsp_use_is_exclusive(hdsp))
2244 		return -EBUSY;
2245 	val = ucontrol->value.enumerated.item[0];
2246 	if (val < 0) val = 0;
2247 	if (val > 2) val = 2;
2248 	spin_lock_irq(&hdsp->lock);
2249 	if (val != hdsp_ad_gain(hdsp))
2250 		change = (hdsp_set_ad_gain(hdsp, val) == 0) ? 1 : 0;
2251 	else
2252 		change = 0;
2253 	spin_unlock_irq(&hdsp->lock);
2254 	return change;
2255 }
2256 
2257 #define HDSP_PHONE_GAIN(xname, xindex) \
2258 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2259   .name = xname, \
2260   .index = xindex, \
2261   .info = snd_hdsp_info_phone_gain, \
2262   .get = snd_hdsp_get_phone_gain, \
2263   .put = snd_hdsp_put_phone_gain \
2264 }
2265 
2266 static int hdsp_phone_gain(struct hdsp *hdsp)
2267 {
2268 	switch (hdsp->control_register & HDSP_PhoneGainMask) {
2269 	case HDSP_PhoneGain0dB:
2270 		return 0;
2271 	case HDSP_PhoneGainMinus6dB:
2272 		return 1;
2273 	case HDSP_PhoneGainMinus12dB:
2274 		return 2;
2275 	default:
2276 		return 0;
2277 	}
2278 }
2279 
2280 static int hdsp_set_phone_gain(struct hdsp *hdsp, int mode)
2281 {
2282 	hdsp->control_register &= ~HDSP_PhoneGainMask;
2283 	switch (mode) {
2284 	case 0:
2285 		hdsp->control_register |= HDSP_PhoneGain0dB;
2286 		break;
2287 	case 1:
2288 		hdsp->control_register |= HDSP_PhoneGainMinus6dB;
2289 		break;
2290 	case 2:
2291 		hdsp->control_register |= HDSP_PhoneGainMinus12dB;
2292 		break;
2293 	default:
2294 		return -1;
2295 
2296 	}
2297 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2298 	return 0;
2299 }
2300 
2301 static int snd_hdsp_info_phone_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2302 {
2303 	static const char * const texts[] = {"0 dB", "-6 dB", "-12 dB"};
2304 
2305 	return snd_ctl_enum_info(uinfo, 1, 3, texts);
2306 }
2307 
2308 static int snd_hdsp_get_phone_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2309 {
2310 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2311 
2312 	ucontrol->value.enumerated.item[0] = hdsp_phone_gain(hdsp);
2313 	return 0;
2314 }
2315 
2316 static int snd_hdsp_put_phone_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2317 {
2318 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2319 	int change;
2320 	int val;
2321 
2322 	if (!snd_hdsp_use_is_exclusive(hdsp))
2323 		return -EBUSY;
2324 	val = ucontrol->value.enumerated.item[0];
2325 	if (val < 0) val = 0;
2326 	if (val > 2) val = 2;
2327 	spin_lock_irq(&hdsp->lock);
2328 	if (val != hdsp_phone_gain(hdsp))
2329 		change = (hdsp_set_phone_gain(hdsp, val) == 0) ? 1 : 0;
2330 	else
2331 		change = 0;
2332 	spin_unlock_irq(&hdsp->lock);
2333 	return change;
2334 }
2335 
2336 #define HDSP_PREF_SYNC_REF(xname, xindex) \
2337 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2338   .name = xname, \
2339   .index = xindex, \
2340   .info = snd_hdsp_info_pref_sync_ref, \
2341   .get = snd_hdsp_get_pref_sync_ref, \
2342   .put = snd_hdsp_put_pref_sync_ref \
2343 }
2344 
2345 static int hdsp_pref_sync_ref(struct hdsp *hdsp)
2346 {
2347 	/* Notice that this looks at the requested sync source,
2348 	   not the one actually in use.
2349 	*/
2350 
2351 	switch (hdsp->control_register & HDSP_SyncRefMask) {
2352 	case HDSP_SyncRef_ADAT1:
2353 		return HDSP_SYNC_FROM_ADAT1;
2354 	case HDSP_SyncRef_ADAT2:
2355 		return HDSP_SYNC_FROM_ADAT2;
2356 	case HDSP_SyncRef_ADAT3:
2357 		return HDSP_SYNC_FROM_ADAT3;
2358 	case HDSP_SyncRef_SPDIF:
2359 		return HDSP_SYNC_FROM_SPDIF;
2360 	case HDSP_SyncRef_WORD:
2361 		return HDSP_SYNC_FROM_WORD;
2362 	case HDSP_SyncRef_ADAT_SYNC:
2363 		return HDSP_SYNC_FROM_ADAT_SYNC;
2364 	default:
2365 		return HDSP_SYNC_FROM_WORD;
2366 	}
2367 	return 0;
2368 }
2369 
2370 static int hdsp_set_pref_sync_ref(struct hdsp *hdsp, int pref)
2371 {
2372 	hdsp->control_register &= ~HDSP_SyncRefMask;
2373 	switch (pref) {
2374 	case HDSP_SYNC_FROM_ADAT1:
2375 		hdsp->control_register &= ~HDSP_SyncRefMask; /* clear SyncRef bits */
2376 		break;
2377 	case HDSP_SYNC_FROM_ADAT2:
2378 		hdsp->control_register |= HDSP_SyncRef_ADAT2;
2379 		break;
2380 	case HDSP_SYNC_FROM_ADAT3:
2381 		hdsp->control_register |= HDSP_SyncRef_ADAT3;
2382 		break;
2383 	case HDSP_SYNC_FROM_SPDIF:
2384 		hdsp->control_register |= HDSP_SyncRef_SPDIF;
2385 		break;
2386 	case HDSP_SYNC_FROM_WORD:
2387 		hdsp->control_register |= HDSP_SyncRef_WORD;
2388 		break;
2389 	case HDSP_SYNC_FROM_ADAT_SYNC:
2390 		hdsp->control_register |= HDSP_SyncRef_ADAT_SYNC;
2391 		break;
2392 	default:
2393 		return -1;
2394 	}
2395 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2396 	return 0;
2397 }
2398 
2399 static int snd_hdsp_info_pref_sync_ref(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2400 {
2401 	static const char * const texts[] = {
2402 		"Word", "IEC958", "ADAT1", "ADAT Sync", "ADAT2", "ADAT3"
2403 	};
2404 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2405 	int num_items;
2406 
2407 	switch (hdsp->io_type) {
2408 	case Digiface:
2409 	case H9652:
2410 		num_items = 6;
2411 		break;
2412 	case Multiface:
2413 		num_items = 4;
2414 		break;
2415 	case H9632:
2416 		num_items = 3;
2417 		break;
2418 	default:
2419 		return -EINVAL;
2420 	}
2421 
2422 	return snd_ctl_enum_info(uinfo, 1, num_items, texts);
2423 }
2424 
2425 static int snd_hdsp_get_pref_sync_ref(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2426 {
2427 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2428 
2429 	ucontrol->value.enumerated.item[0] = hdsp_pref_sync_ref(hdsp);
2430 	return 0;
2431 }
2432 
2433 static int snd_hdsp_put_pref_sync_ref(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2434 {
2435 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2436 	int change, max;
2437 	unsigned int val;
2438 
2439 	if (!snd_hdsp_use_is_exclusive(hdsp))
2440 		return -EBUSY;
2441 
2442 	switch (hdsp->io_type) {
2443 	case Digiface:
2444 	case H9652:
2445 		max = 6;
2446 		break;
2447 	case Multiface:
2448 		max = 4;
2449 		break;
2450 	case H9632:
2451 		max = 3;
2452 		break;
2453 	default:
2454 		return -EIO;
2455 	}
2456 
2457 	val = ucontrol->value.enumerated.item[0] % max;
2458 	spin_lock_irq(&hdsp->lock);
2459 	change = (int)val != hdsp_pref_sync_ref(hdsp);
2460 	hdsp_set_pref_sync_ref(hdsp, val);
2461 	spin_unlock_irq(&hdsp->lock);
2462 	return change;
2463 }
2464 
2465 #define HDSP_AUTOSYNC_REF(xname, xindex) \
2466 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2467   .name = xname, \
2468   .index = xindex, \
2469   .access = SNDRV_CTL_ELEM_ACCESS_READ, \
2470   .info = snd_hdsp_info_autosync_ref, \
2471   .get = snd_hdsp_get_autosync_ref, \
2472 }
2473 
2474 static int hdsp_autosync_ref(struct hdsp *hdsp)
2475 {
2476 	/* This looks at the autosync selected sync reference */
2477 	unsigned int status2 = hdsp_read(hdsp, HDSP_status2Register);
2478 
2479 	switch (status2 & HDSP_SelSyncRefMask) {
2480 	case HDSP_SelSyncRef_WORD:
2481 		return HDSP_AUTOSYNC_FROM_WORD;
2482 	case HDSP_SelSyncRef_ADAT_SYNC:
2483 		return HDSP_AUTOSYNC_FROM_ADAT_SYNC;
2484 	case HDSP_SelSyncRef_SPDIF:
2485 		return HDSP_AUTOSYNC_FROM_SPDIF;
2486 	case HDSP_SelSyncRefMask:
2487 		return HDSP_AUTOSYNC_FROM_NONE;
2488 	case HDSP_SelSyncRef_ADAT1:
2489 		return HDSP_AUTOSYNC_FROM_ADAT1;
2490 	case HDSP_SelSyncRef_ADAT2:
2491 		return HDSP_AUTOSYNC_FROM_ADAT2;
2492 	case HDSP_SelSyncRef_ADAT3:
2493 		return HDSP_AUTOSYNC_FROM_ADAT3;
2494 	default:
2495 		return HDSP_AUTOSYNC_FROM_WORD;
2496 	}
2497 	return 0;
2498 }
2499 
2500 static int snd_hdsp_info_autosync_ref(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2501 {
2502 	static const char * const texts[] = {
2503 		"Word", "ADAT Sync", "IEC958", "None", "ADAT1", "ADAT2", "ADAT3"
2504 	};
2505 
2506 	return snd_ctl_enum_info(uinfo, 1, 7, texts);
2507 }
2508 
2509 static int snd_hdsp_get_autosync_ref(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2510 {
2511 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2512 
2513 	ucontrol->value.enumerated.item[0] = hdsp_autosync_ref(hdsp);
2514 	return 0;
2515 }
2516 
2517 #define HDSP_PRECISE_POINTER(xname, xindex) \
2518 { .iface = SNDRV_CTL_ELEM_IFACE_CARD, \
2519   .name = xname, \
2520   .index = xindex, \
2521   .info = snd_hdsp_info_precise_pointer, \
2522   .get = snd_hdsp_get_precise_pointer, \
2523   .put = snd_hdsp_put_precise_pointer \
2524 }
2525 
2526 static int hdsp_set_precise_pointer(struct hdsp *hdsp, int precise)
2527 {
2528 	if (precise)
2529 		hdsp->precise_ptr = 1;
2530 	else
2531 		hdsp->precise_ptr = 0;
2532 	return 0;
2533 }
2534 
2535 #define snd_hdsp_info_precise_pointer		snd_ctl_boolean_mono_info
2536 
2537 static int snd_hdsp_get_precise_pointer(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2538 {
2539 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2540 
2541 	spin_lock_irq(&hdsp->lock);
2542 	ucontrol->value.integer.value[0] = hdsp->precise_ptr;
2543 	spin_unlock_irq(&hdsp->lock);
2544 	return 0;
2545 }
2546 
2547 static int snd_hdsp_put_precise_pointer(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2548 {
2549 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2550 	int change;
2551 	unsigned int val;
2552 
2553 	if (!snd_hdsp_use_is_exclusive(hdsp))
2554 		return -EBUSY;
2555 	val = ucontrol->value.integer.value[0] & 1;
2556 	spin_lock_irq(&hdsp->lock);
2557 	change = (int)val != hdsp->precise_ptr;
2558 	hdsp_set_precise_pointer(hdsp, val);
2559 	spin_unlock_irq(&hdsp->lock);
2560 	return change;
2561 }
2562 
2563 #define HDSP_USE_MIDI_TASKLET(xname, xindex) \
2564 { .iface = SNDRV_CTL_ELEM_IFACE_CARD, \
2565   .name = xname, \
2566   .index = xindex, \
2567   .info = snd_hdsp_info_use_midi_tasklet, \
2568   .get = snd_hdsp_get_use_midi_tasklet, \
2569   .put = snd_hdsp_put_use_midi_tasklet \
2570 }
2571 
2572 static int hdsp_set_use_midi_tasklet(struct hdsp *hdsp, int use_tasklet)
2573 {
2574 	if (use_tasklet)
2575 		hdsp->use_midi_tasklet = 1;
2576 	else
2577 		hdsp->use_midi_tasklet = 0;
2578 	return 0;
2579 }
2580 
2581 #define snd_hdsp_info_use_midi_tasklet		snd_ctl_boolean_mono_info
2582 
2583 static int snd_hdsp_get_use_midi_tasklet(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2584 {
2585 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2586 
2587 	spin_lock_irq(&hdsp->lock);
2588 	ucontrol->value.integer.value[0] = hdsp->use_midi_tasklet;
2589 	spin_unlock_irq(&hdsp->lock);
2590 	return 0;
2591 }
2592 
2593 static int snd_hdsp_put_use_midi_tasklet(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2594 {
2595 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2596 	int change;
2597 	unsigned int val;
2598 
2599 	if (!snd_hdsp_use_is_exclusive(hdsp))
2600 		return -EBUSY;
2601 	val = ucontrol->value.integer.value[0] & 1;
2602 	spin_lock_irq(&hdsp->lock);
2603 	change = (int)val != hdsp->use_midi_tasklet;
2604 	hdsp_set_use_midi_tasklet(hdsp, val);
2605 	spin_unlock_irq(&hdsp->lock);
2606 	return change;
2607 }
2608 
2609 #define HDSP_MIXER(xname, xindex) \
2610 { .iface = SNDRV_CTL_ELEM_IFACE_HWDEP, \
2611   .name = xname, \
2612   .index = xindex, \
2613   .device = 0, \
2614   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | \
2615 		 SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
2616   .info = snd_hdsp_info_mixer, \
2617   .get = snd_hdsp_get_mixer, \
2618   .put = snd_hdsp_put_mixer \
2619 }
2620 
2621 static int snd_hdsp_info_mixer(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2622 {
2623 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2624 	uinfo->count = 3;
2625 	uinfo->value.integer.min = 0;
2626 	uinfo->value.integer.max = 65536;
2627 	uinfo->value.integer.step = 1;
2628 	return 0;
2629 }
2630 
2631 static int snd_hdsp_get_mixer(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2632 {
2633 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2634 	int source;
2635 	int destination;
2636 	int addr;
2637 
2638 	source = ucontrol->value.integer.value[0];
2639 	destination = ucontrol->value.integer.value[1];
2640 
2641 	if (source >= hdsp->max_channels)
2642 		addr = hdsp_playback_to_output_key(hdsp,source-hdsp->max_channels,destination);
2643 	else
2644 		addr = hdsp_input_to_output_key(hdsp,source, destination);
2645 
2646 	spin_lock_irq(&hdsp->lock);
2647 	ucontrol->value.integer.value[2] = hdsp_read_gain (hdsp, addr);
2648 	spin_unlock_irq(&hdsp->lock);
2649 	return 0;
2650 }
2651 
2652 static int snd_hdsp_put_mixer(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2653 {
2654 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2655 	int change;
2656 	int source;
2657 	int destination;
2658 	int gain;
2659 	int addr;
2660 
2661 	if (!snd_hdsp_use_is_exclusive(hdsp))
2662 		return -EBUSY;
2663 
2664 	source = ucontrol->value.integer.value[0];
2665 	destination = ucontrol->value.integer.value[1];
2666 
2667 	if (source >= hdsp->max_channels)
2668 		addr = hdsp_playback_to_output_key(hdsp,source-hdsp->max_channels, destination);
2669 	else
2670 		addr = hdsp_input_to_output_key(hdsp,source, destination);
2671 
2672 	gain = ucontrol->value.integer.value[2];
2673 
2674 	spin_lock_irq(&hdsp->lock);
2675 	change = gain != hdsp_read_gain(hdsp, addr);
2676 	if (change)
2677 		hdsp_write_gain(hdsp, addr, gain);
2678 	spin_unlock_irq(&hdsp->lock);
2679 	return change;
2680 }
2681 
2682 #define HDSP_WC_SYNC_CHECK(xname, xindex) \
2683 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2684   .name = xname, \
2685   .index = xindex, \
2686   .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
2687   .info = snd_hdsp_info_sync_check, \
2688   .get = snd_hdsp_get_wc_sync_check \
2689 }
2690 
2691 static int snd_hdsp_info_sync_check(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2692 {
2693 	static const char * const texts[] = {"No Lock", "Lock", "Sync" };
2694 
2695 	return snd_ctl_enum_info(uinfo, 1, 3, texts);
2696 }
2697 
2698 static int hdsp_wc_sync_check(struct hdsp *hdsp)
2699 {
2700 	int status2 = hdsp_read(hdsp, HDSP_status2Register);
2701 	if (status2 & HDSP_wc_lock) {
2702 		if (status2 & HDSP_wc_sync)
2703 			return 2;
2704 		else
2705 			 return 1;
2706 	} else
2707 		return 0;
2708 	return 0;
2709 }
2710 
2711 static int snd_hdsp_get_wc_sync_check(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2712 {
2713 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2714 
2715 	ucontrol->value.enumerated.item[0] = hdsp_wc_sync_check(hdsp);
2716 	return 0;
2717 }
2718 
2719 #define HDSP_SPDIF_SYNC_CHECK(xname, xindex) \
2720 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2721   .name = xname, \
2722   .index = xindex, \
2723   .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
2724   .info = snd_hdsp_info_sync_check, \
2725   .get = snd_hdsp_get_spdif_sync_check \
2726 }
2727 
2728 static int hdsp_spdif_sync_check(struct hdsp *hdsp)
2729 {
2730 	int status = hdsp_read(hdsp, HDSP_statusRegister);
2731 	if (status & HDSP_SPDIFErrorFlag)
2732 		return 0;
2733 	else {
2734 		if (status & HDSP_SPDIFSync)
2735 			return 2;
2736 		else
2737 			return 1;
2738 	}
2739 	return 0;
2740 }
2741 
2742 static int snd_hdsp_get_spdif_sync_check(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2743 {
2744 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2745 
2746 	ucontrol->value.enumerated.item[0] = hdsp_spdif_sync_check(hdsp);
2747 	return 0;
2748 }
2749 
2750 #define HDSP_ADATSYNC_SYNC_CHECK(xname, xindex) \
2751 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2752   .name = xname, \
2753   .index = xindex, \
2754   .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
2755   .info = snd_hdsp_info_sync_check, \
2756   .get = snd_hdsp_get_adatsync_sync_check \
2757 }
2758 
2759 static int hdsp_adatsync_sync_check(struct hdsp *hdsp)
2760 {
2761 	int status = hdsp_read(hdsp, HDSP_statusRegister);
2762 	if (status & HDSP_TimecodeLock) {
2763 		if (status & HDSP_TimecodeSync)
2764 			return 2;
2765 		else
2766 			return 1;
2767 	} else
2768 		return 0;
2769 }
2770 
2771 static int snd_hdsp_get_adatsync_sync_check(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2772 {
2773 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2774 
2775 	ucontrol->value.enumerated.item[0] = hdsp_adatsync_sync_check(hdsp);
2776 	return 0;
2777 }
2778 
2779 #define HDSP_ADAT_SYNC_CHECK \
2780 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2781   .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
2782   .info = snd_hdsp_info_sync_check, \
2783   .get = snd_hdsp_get_adat_sync_check \
2784 }
2785 
2786 static int hdsp_adat_sync_check(struct hdsp *hdsp, int idx)
2787 {
2788 	int status = hdsp_read(hdsp, HDSP_statusRegister);
2789 
2790 	if (status & (HDSP_Lock0>>idx)) {
2791 		if (status & (HDSP_Sync0>>idx))
2792 			return 2;
2793 		else
2794 			return 1;
2795 	} else
2796 		return 0;
2797 }
2798 
2799 static int snd_hdsp_get_adat_sync_check(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2800 {
2801 	int offset;
2802 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2803 
2804 	offset = ucontrol->id.index - 1;
2805 	if (snd_BUG_ON(offset < 0))
2806 		return -EINVAL;
2807 
2808 	switch (hdsp->io_type) {
2809 	case Digiface:
2810 	case H9652:
2811 		if (offset >= 3)
2812 			return -EINVAL;
2813 		break;
2814 	case Multiface:
2815 	case H9632:
2816 		if (offset >= 1)
2817 			return -EINVAL;
2818 		break;
2819 	default:
2820 		return -EIO;
2821 	}
2822 
2823 	ucontrol->value.enumerated.item[0] = hdsp_adat_sync_check(hdsp, offset);
2824 	return 0;
2825 }
2826 
2827 #define HDSP_DDS_OFFSET(xname, xindex) \
2828 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2829   .name = xname, \
2830   .index = xindex, \
2831   .info = snd_hdsp_info_dds_offset, \
2832   .get = snd_hdsp_get_dds_offset, \
2833   .put = snd_hdsp_put_dds_offset \
2834 }
2835 
2836 static int hdsp_dds_offset(struct hdsp *hdsp)
2837 {
2838 	u64 n;
2839 	unsigned int dds_value = hdsp->dds_value;
2840 	int system_sample_rate = hdsp->system_sample_rate;
2841 
2842 	if (!dds_value)
2843 		return 0;
2844 
2845 	n = DDS_NUMERATOR;
2846 	/*
2847 	 * dds_value = n / rate
2848 	 * rate = n / dds_value
2849 	 */
2850 	n = div_u64(n, dds_value);
2851 	if (system_sample_rate >= 112000)
2852 		n *= 4;
2853 	else if (system_sample_rate >= 56000)
2854 		n *= 2;
2855 	return ((int)n) - system_sample_rate;
2856 }
2857 
2858 static int hdsp_set_dds_offset(struct hdsp *hdsp, int offset_hz)
2859 {
2860 	int rate = hdsp->system_sample_rate + offset_hz;
2861 	hdsp_set_dds_value(hdsp, rate);
2862 	return 0;
2863 }
2864 
2865 static int snd_hdsp_info_dds_offset(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2866 {
2867 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2868 	uinfo->count = 1;
2869 	uinfo->value.integer.min = -5000;
2870 	uinfo->value.integer.max = 5000;
2871 	return 0;
2872 }
2873 
2874 static int snd_hdsp_get_dds_offset(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2875 {
2876 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2877 
2878 	ucontrol->value.integer.value[0] = hdsp_dds_offset(hdsp);
2879 	return 0;
2880 }
2881 
2882 static int snd_hdsp_put_dds_offset(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2883 {
2884 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2885 	int change;
2886 	int val;
2887 
2888 	if (!snd_hdsp_use_is_exclusive(hdsp))
2889 		return -EBUSY;
2890 	val = ucontrol->value.integer.value[0];
2891 	spin_lock_irq(&hdsp->lock);
2892 	if (val != hdsp_dds_offset(hdsp))
2893 		change = (hdsp_set_dds_offset(hdsp, val) == 0) ? 1 : 0;
2894 	else
2895 		change = 0;
2896 	spin_unlock_irq(&hdsp->lock);
2897 	return change;
2898 }
2899 
2900 static struct snd_kcontrol_new snd_hdsp_9632_controls[] = {
2901 HDSP_DA_GAIN("DA Gain", 0),
2902 HDSP_AD_GAIN("AD Gain", 0),
2903 HDSP_PHONE_GAIN("Phones Gain", 0),
2904 HDSP_TOGGLE_SETTING("XLR Breakout Cable", HDSP_XLRBreakoutCable),
2905 HDSP_DDS_OFFSET("DDS Sample Rate Offset", 0)
2906 };
2907 
2908 static struct snd_kcontrol_new snd_hdsp_controls[] = {
2909 {
2910 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2911 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
2912 	.info =		snd_hdsp_control_spdif_info,
2913 	.get =		snd_hdsp_control_spdif_get,
2914 	.put =		snd_hdsp_control_spdif_put,
2915 },
2916 {
2917 	.access =	SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
2918 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2919 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
2920 	.info =		snd_hdsp_control_spdif_stream_info,
2921 	.get =		snd_hdsp_control_spdif_stream_get,
2922 	.put =		snd_hdsp_control_spdif_stream_put,
2923 },
2924 {
2925 	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
2926 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2927 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
2928 	.info =		snd_hdsp_control_spdif_mask_info,
2929 	.get =		snd_hdsp_control_spdif_mask_get,
2930 	.private_value = IEC958_AES0_NONAUDIO |
2931   			 IEC958_AES0_PROFESSIONAL |
2932 			 IEC958_AES0_CON_EMPHASIS,
2933 },
2934 {
2935 	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
2936 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2937 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
2938 	.info =		snd_hdsp_control_spdif_mask_info,
2939 	.get =		snd_hdsp_control_spdif_mask_get,
2940 	.private_value = IEC958_AES0_NONAUDIO |
2941 			 IEC958_AES0_PROFESSIONAL |
2942 			 IEC958_AES0_PRO_EMPHASIS,
2943 },
2944 HDSP_MIXER("Mixer", 0),
2945 HDSP_SPDIF_IN("IEC958 Input Connector", 0),
2946 HDSP_TOGGLE_SETTING("IEC958 Output also on ADAT1", HDSP_SPDIFOpticalOut),
2947 HDSP_TOGGLE_SETTING("IEC958 Professional Bit", HDSP_SPDIFProfessional),
2948 HDSP_TOGGLE_SETTING("IEC958 Emphasis Bit", HDSP_SPDIFEmphasis),
2949 HDSP_TOGGLE_SETTING("IEC958 Non-audio Bit", HDSP_SPDIFNonAudio),
2950 /* 'Sample Clock Source' complies with the alsa control naming scheme */
2951 HDSP_CLOCK_SOURCE("Sample Clock Source", 0),
2952 {
2953 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
2954 	.name = "Sample Clock Source Locking",
2955 	.info = snd_hdsp_info_clock_source_lock,
2956 	.get = snd_hdsp_get_clock_source_lock,
2957 	.put = snd_hdsp_put_clock_source_lock,
2958 },
2959 HDSP_SYSTEM_CLOCK_MODE("System Clock Mode", 0),
2960 HDSP_PREF_SYNC_REF("Preferred Sync Reference", 0),
2961 HDSP_AUTOSYNC_REF("AutoSync Reference", 0),
2962 HDSP_SPDIF_SAMPLE_RATE("SPDIF Sample Rate", 0),
2963 HDSP_SYSTEM_SAMPLE_RATE("System Sample Rate", 0),
2964 /* 'External Rate' complies with the alsa control naming scheme */
2965 HDSP_AUTOSYNC_SAMPLE_RATE("External Rate", 0),
2966 HDSP_WC_SYNC_CHECK("Word Clock Lock Status", 0),
2967 HDSP_SPDIF_SYNC_CHECK("SPDIF Lock Status", 0),
2968 HDSP_ADATSYNC_SYNC_CHECK("ADAT Sync Lock Status", 0),
2969 HDSP_TOGGLE_SETTING("Line Out", HDSP_LineOut),
2970 HDSP_PRECISE_POINTER("Precise Pointer", 0),
2971 HDSP_USE_MIDI_TASKLET("Use Midi Tasklet", 0),
2972 };
2973 
2974 
2975 static int hdsp_rpm_input12(struct hdsp *hdsp)
2976 {
2977 	switch (hdsp->control_register & HDSP_RPM_Inp12) {
2978 	case HDSP_RPM_Inp12_Phon_6dB:
2979 		return 0;
2980 	case HDSP_RPM_Inp12_Phon_n6dB:
2981 		return 2;
2982 	case HDSP_RPM_Inp12_Line_0dB:
2983 		return 3;
2984 	case HDSP_RPM_Inp12_Line_n6dB:
2985 		return 4;
2986 	}
2987 	return 1;
2988 }
2989 
2990 
2991 static int snd_hdsp_get_rpm_input12(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2992 {
2993 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2994 
2995 	ucontrol->value.enumerated.item[0] = hdsp_rpm_input12(hdsp);
2996 	return 0;
2997 }
2998 
2999 
3000 static int hdsp_set_rpm_input12(struct hdsp *hdsp, int mode)
3001 {
3002 	hdsp->control_register &= ~HDSP_RPM_Inp12;
3003 	switch (mode) {
3004 	case 0:
3005 		hdsp->control_register |= HDSP_RPM_Inp12_Phon_6dB;
3006 		break;
3007 	case 1:
3008 		break;
3009 	case 2:
3010 		hdsp->control_register |= HDSP_RPM_Inp12_Phon_n6dB;
3011 		break;
3012 	case 3:
3013 		hdsp->control_register |= HDSP_RPM_Inp12_Line_0dB;
3014 		break;
3015 	case 4:
3016 		hdsp->control_register |= HDSP_RPM_Inp12_Line_n6dB;
3017 		break;
3018 	default:
3019 		return -1;
3020 	}
3021 
3022 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
3023 	return 0;
3024 }
3025 
3026 
3027 static int snd_hdsp_put_rpm_input12(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
3028 {
3029 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
3030 	int change;
3031 	int val;
3032 
3033 	if (!snd_hdsp_use_is_exclusive(hdsp))
3034 		return -EBUSY;
3035 	val = ucontrol->value.enumerated.item[0];
3036 	if (val < 0)
3037 		val = 0;
3038 	if (val > 4)
3039 		val = 4;
3040 	spin_lock_irq(&hdsp->lock);
3041 	if (val != hdsp_rpm_input12(hdsp))
3042 		change = (hdsp_set_rpm_input12(hdsp, val) == 0) ? 1 : 0;
3043 	else
3044 		change = 0;
3045 	spin_unlock_irq(&hdsp->lock);
3046 	return change;
3047 }
3048 
3049 
3050 static int snd_hdsp_info_rpm_input(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
3051 {
3052 	static const char * const texts[] = {
3053 		"Phono +6dB", "Phono 0dB", "Phono -6dB", "Line 0dB", "Line -6dB"
3054 	};
3055 
3056 	return snd_ctl_enum_info(uinfo, 1, 5, texts);
3057 }
3058 
3059 
3060 static int hdsp_rpm_input34(struct hdsp *hdsp)
3061 {
3062 	switch (hdsp->control_register & HDSP_RPM_Inp34) {
3063 	case HDSP_RPM_Inp34_Phon_6dB:
3064 		return 0;
3065 	case HDSP_RPM_Inp34_Phon_n6dB:
3066 		return 2;
3067 	case HDSP_RPM_Inp34_Line_0dB:
3068 		return 3;
3069 	case HDSP_RPM_Inp34_Line_n6dB:
3070 		return 4;
3071 	}
3072 	return 1;
3073 }
3074 
3075 
3076 static int snd_hdsp_get_rpm_input34(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
3077 {
3078 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
3079 
3080 	ucontrol->value.enumerated.item[0] = hdsp_rpm_input34(hdsp);
3081 	return 0;
3082 }
3083 
3084 
3085 static int hdsp_set_rpm_input34(struct hdsp *hdsp, int mode)
3086 {
3087 	hdsp->control_register &= ~HDSP_RPM_Inp34;
3088 	switch (mode) {
3089 	case 0:
3090 		hdsp->control_register |= HDSP_RPM_Inp34_Phon_6dB;
3091 		break;
3092 	case 1:
3093 		break;
3094 	case 2:
3095 		hdsp->control_register |= HDSP_RPM_Inp34_Phon_n6dB;
3096 		break;
3097 	case 3:
3098 		hdsp->control_register |= HDSP_RPM_Inp34_Line_0dB;
3099 		break;
3100 	case 4:
3101 		hdsp->control_register |= HDSP_RPM_Inp34_Line_n6dB;
3102 		break;
3103 	default:
3104 		return -1;
3105 	}
3106 
3107 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
3108 	return 0;
3109 }
3110 
3111 
3112 static int snd_hdsp_put_rpm_input34(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
3113 {
3114 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
3115 	int change;
3116 	int val;
3117 
3118 	if (!snd_hdsp_use_is_exclusive(hdsp))
3119 		return -EBUSY;
3120 	val = ucontrol->value.enumerated.item[0];
3121 	if (val < 0)
3122 		val = 0;
3123 	if (val > 4)
3124 		val = 4;
3125 	spin_lock_irq(&hdsp->lock);
3126 	if (val != hdsp_rpm_input34(hdsp))
3127 		change = (hdsp_set_rpm_input34(hdsp, val) == 0) ? 1 : 0;
3128 	else
3129 		change = 0;
3130 	spin_unlock_irq(&hdsp->lock);
3131 	return change;
3132 }
3133 
3134 
3135 /* RPM Bypass switch */
3136 static int hdsp_rpm_bypass(struct hdsp *hdsp)
3137 {
3138 	return (hdsp->control_register & HDSP_RPM_Bypass) ? 1 : 0;
3139 }
3140 
3141 
3142 static int snd_hdsp_get_rpm_bypass(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
3143 {
3144 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
3145 
3146 	ucontrol->value.integer.value[0] = hdsp_rpm_bypass(hdsp);
3147 	return 0;
3148 }
3149 
3150 
3151 static int hdsp_set_rpm_bypass(struct hdsp *hdsp, int on)
3152 {
3153 	if (on)
3154 		hdsp->control_register |= HDSP_RPM_Bypass;
3155 	else
3156 		hdsp->control_register &= ~HDSP_RPM_Bypass;
3157 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
3158 	return 0;
3159 }
3160 
3161 
3162 static int snd_hdsp_put_rpm_bypass(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
3163 {
3164 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
3165 	int change;
3166 	unsigned int val;
3167 
3168 	if (!snd_hdsp_use_is_exclusive(hdsp))
3169 		return -EBUSY;
3170 	val = ucontrol->value.integer.value[0] & 1;
3171 	spin_lock_irq(&hdsp->lock);
3172 	change = (int)val != hdsp_rpm_bypass(hdsp);
3173 	hdsp_set_rpm_bypass(hdsp, val);
3174 	spin_unlock_irq(&hdsp->lock);
3175 	return change;
3176 }
3177 
3178 
3179 static int snd_hdsp_info_rpm_bypass(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
3180 {
3181 	static const char * const texts[] = {"On", "Off"};
3182 
3183 	return snd_ctl_enum_info(uinfo, 1, 2, texts);
3184 }
3185 
3186 
3187 /* RPM Disconnect switch */
3188 static int hdsp_rpm_disconnect(struct hdsp *hdsp)
3189 {
3190 	return (hdsp->control_register & HDSP_RPM_Disconnect) ? 1 : 0;
3191 }
3192 
3193 
3194 static int snd_hdsp_get_rpm_disconnect(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
3195 {
3196 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
3197 
3198 	ucontrol->value.integer.value[0] = hdsp_rpm_disconnect(hdsp);
3199 	return 0;
3200 }
3201 
3202 
3203 static int hdsp_set_rpm_disconnect(struct hdsp *hdsp, int on)
3204 {
3205 	if (on)
3206 		hdsp->control_register |= HDSP_RPM_Disconnect;
3207 	else
3208 		hdsp->control_register &= ~HDSP_RPM_Disconnect;
3209 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
3210 	return 0;
3211 }
3212 
3213 
3214 static int snd_hdsp_put_rpm_disconnect(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
3215 {
3216 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
3217 	int change;
3218 	unsigned int val;
3219 
3220 	if (!snd_hdsp_use_is_exclusive(hdsp))
3221 		return -EBUSY;
3222 	val = ucontrol->value.integer.value[0] & 1;
3223 	spin_lock_irq(&hdsp->lock);
3224 	change = (int)val != hdsp_rpm_disconnect(hdsp);
3225 	hdsp_set_rpm_disconnect(hdsp, val);
3226 	spin_unlock_irq(&hdsp->lock);
3227 	return change;
3228 }
3229 
3230 static int snd_hdsp_info_rpm_disconnect(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
3231 {
3232 	static const char * const texts[] = {"On", "Off"};
3233 
3234 	return snd_ctl_enum_info(uinfo, 1, 2, texts);
3235 }
3236 
3237 static struct snd_kcontrol_new snd_hdsp_rpm_controls[] = {
3238 	{
3239 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
3240 		.name = "RPM Bypass",
3241 		.get = snd_hdsp_get_rpm_bypass,
3242 		.put = snd_hdsp_put_rpm_bypass,
3243 		.info = snd_hdsp_info_rpm_bypass
3244 	},
3245 	{
3246 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
3247 		.name = "RPM Disconnect",
3248 		.get = snd_hdsp_get_rpm_disconnect,
3249 		.put = snd_hdsp_put_rpm_disconnect,
3250 		.info = snd_hdsp_info_rpm_disconnect
3251 	},
3252 	{
3253 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
3254 		.name = "Input 1/2",
3255 		.get = snd_hdsp_get_rpm_input12,
3256 		.put = snd_hdsp_put_rpm_input12,
3257 		.info = snd_hdsp_info_rpm_input
3258 	},
3259 	{
3260 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
3261 		.name = "Input 3/4",
3262 		.get = snd_hdsp_get_rpm_input34,
3263 		.put = snd_hdsp_put_rpm_input34,
3264 		.info = snd_hdsp_info_rpm_input
3265 	},
3266 	HDSP_SYSTEM_SAMPLE_RATE("System Sample Rate", 0),
3267 	HDSP_MIXER("Mixer", 0)
3268 };
3269 
3270 static struct snd_kcontrol_new snd_hdsp_96xx_aeb =
3271 	HDSP_TOGGLE_SETTING("Analog Extension Board",
3272 			HDSP_AnalogExtensionBoard);
3273 static struct snd_kcontrol_new snd_hdsp_adat_sync_check = HDSP_ADAT_SYNC_CHECK;
3274 
3275 static int snd_hdsp_create_controls(struct snd_card *card, struct hdsp *hdsp)
3276 {
3277 	unsigned int idx;
3278 	int err;
3279 	struct snd_kcontrol *kctl;
3280 
3281 	if (hdsp->io_type == RPM) {
3282 		/* RPM Bypass, Disconnect and Input switches */
3283 		for (idx = 0; idx < ARRAY_SIZE(snd_hdsp_rpm_controls); idx++) {
3284 			err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_hdsp_rpm_controls[idx], hdsp));
3285 			if (err < 0)
3286 				return err;
3287 		}
3288 		return 0;
3289 	}
3290 
3291 	for (idx = 0; idx < ARRAY_SIZE(snd_hdsp_controls); idx++) {
3292 		if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_hdsp_controls[idx], hdsp))) < 0)
3293 			return err;
3294 		if (idx == 1)	/* IEC958 (S/PDIF) Stream */
3295 			hdsp->spdif_ctl = kctl;
3296 	}
3297 
3298 	/* ADAT SyncCheck status */
3299 	snd_hdsp_adat_sync_check.name = "ADAT Lock Status";
3300 	snd_hdsp_adat_sync_check.index = 1;
3301 	if ((err = snd_ctl_add (card, kctl = snd_ctl_new1(&snd_hdsp_adat_sync_check, hdsp))))
3302 		return err;
3303 	if (hdsp->io_type == Digiface || hdsp->io_type == H9652) {
3304 		for (idx = 1; idx < 3; ++idx) {
3305 			snd_hdsp_adat_sync_check.index = idx+1;
3306 			if ((err = snd_ctl_add (card, kctl = snd_ctl_new1(&snd_hdsp_adat_sync_check, hdsp))))
3307 				return err;
3308 		}
3309 	}
3310 
3311 	/* DA, AD and Phone gain and XLR breakout cable controls for H9632 cards */
3312 	if (hdsp->io_type == H9632) {
3313 		for (idx = 0; idx < ARRAY_SIZE(snd_hdsp_9632_controls); idx++) {
3314 			if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_hdsp_9632_controls[idx], hdsp))) < 0)
3315 				return err;
3316 		}
3317 	}
3318 
3319 	/* AEB control for H96xx card */
3320 	if (hdsp->io_type == H9632 || hdsp->io_type == H9652) {
3321 		if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_hdsp_96xx_aeb, hdsp))) < 0)
3322 				return err;
3323 	}
3324 
3325 	return 0;
3326 }
3327 
3328 /*------------------------------------------------------------
3329    /proc interface
3330  ------------------------------------------------------------*/
3331 
3332 static void
3333 snd_hdsp_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
3334 {
3335 	struct hdsp *hdsp = entry->private_data;
3336 	unsigned int status;
3337 	unsigned int status2;
3338 	char *pref_sync_ref;
3339 	char *autosync_ref;
3340 	char *system_clock_mode;
3341 	char *clock_source;
3342 	int x;
3343 
3344 	status = hdsp_read(hdsp, HDSP_statusRegister);
3345 	status2 = hdsp_read(hdsp, HDSP_status2Register);
3346 
3347 	snd_iprintf(buffer, "%s (Card #%d)\n", hdsp->card_name,
3348 		    hdsp->card->number + 1);
3349 	snd_iprintf(buffer, "Buffers: capture %p playback %p\n",
3350 		    hdsp->capture_buffer, hdsp->playback_buffer);
3351 	snd_iprintf(buffer, "IRQ: %d Registers bus: 0x%lx VM: 0x%lx\n",
3352 		    hdsp->irq, hdsp->port, (unsigned long)hdsp->iobase);
3353 	snd_iprintf(buffer, "Control register: 0x%x\n", hdsp->control_register);
3354 	snd_iprintf(buffer, "Control2 register: 0x%x\n",
3355 		    hdsp->control2_register);
3356 	snd_iprintf(buffer, "Status register: 0x%x\n", status);
3357 	snd_iprintf(buffer, "Status2 register: 0x%x\n", status2);
3358 
3359 	if (hdsp_check_for_iobox(hdsp)) {
3360 		snd_iprintf(buffer, "No I/O box connected.\n"
3361 			    "Please connect one and upload firmware.\n");
3362 		return;
3363 	}
3364 
3365 	if (hdsp_check_for_firmware(hdsp, 0)) {
3366 		if (hdsp->state & HDSP_FirmwareCached) {
3367 			if (snd_hdsp_load_firmware_from_cache(hdsp) != 0) {
3368 				snd_iprintf(buffer, "Firmware loading from "
3369 					    "cache failed, "
3370 					    "please upload manually.\n");
3371 				return;
3372 			}
3373 		} else {
3374 			int err = -EINVAL;
3375 			err = hdsp_request_fw_loader(hdsp);
3376 			if (err < 0) {
3377 				snd_iprintf(buffer,
3378 					    "No firmware loaded nor cached, "
3379 					    "please upload firmware.\n");
3380 				return;
3381 			}
3382 		}
3383 	}
3384 
3385 	snd_iprintf(buffer, "FIFO status: %d\n", hdsp_read(hdsp, HDSP_fifoStatus) & 0xff);
3386 	snd_iprintf(buffer, "MIDI1 Output status: 0x%x\n", hdsp_read(hdsp, HDSP_midiStatusOut0));
3387 	snd_iprintf(buffer, "MIDI1 Input status: 0x%x\n", hdsp_read(hdsp, HDSP_midiStatusIn0));
3388 	snd_iprintf(buffer, "MIDI2 Output status: 0x%x\n", hdsp_read(hdsp, HDSP_midiStatusOut1));
3389 	snd_iprintf(buffer, "MIDI2 Input status: 0x%x\n", hdsp_read(hdsp, HDSP_midiStatusIn1));
3390 	snd_iprintf(buffer, "Use Midi Tasklet: %s\n", hdsp->use_midi_tasklet ? "on" : "off");
3391 
3392 	snd_iprintf(buffer, "\n");
3393 
3394 	x = 1 << (6 + hdsp_decode_latency(hdsp->control_register & HDSP_LatencyMask));
3395 
3396 	snd_iprintf(buffer, "Buffer Size (Latency): %d samples (2 periods of %lu bytes)\n", x, (unsigned long) hdsp->period_bytes);
3397 	snd_iprintf(buffer, "Hardware pointer (frames): %ld\n", hdsp_hw_pointer(hdsp));
3398 	snd_iprintf(buffer, "Precise pointer: %s\n", hdsp->precise_ptr ? "on" : "off");
3399 	snd_iprintf(buffer, "Line out: %s\n", (hdsp->control_register & HDSP_LineOut) ? "on" : "off");
3400 
3401 	snd_iprintf(buffer, "Firmware version: %d\n", (status2&HDSP_version0)|(status2&HDSP_version1)<<1|(status2&HDSP_version2)<<2);
3402 
3403 	snd_iprintf(buffer, "\n");
3404 
3405 	switch (hdsp_clock_source(hdsp)) {
3406 	case HDSP_CLOCK_SOURCE_AUTOSYNC:
3407 		clock_source = "AutoSync";
3408 		break;
3409 	case HDSP_CLOCK_SOURCE_INTERNAL_32KHZ:
3410 		clock_source = "Internal 32 kHz";
3411 		break;
3412 	case HDSP_CLOCK_SOURCE_INTERNAL_44_1KHZ:
3413 		clock_source = "Internal 44.1 kHz";
3414 		break;
3415 	case HDSP_CLOCK_SOURCE_INTERNAL_48KHZ:
3416 		clock_source = "Internal 48 kHz";
3417 		break;
3418 	case HDSP_CLOCK_SOURCE_INTERNAL_64KHZ:
3419 		clock_source = "Internal 64 kHz";
3420 		break;
3421 	case HDSP_CLOCK_SOURCE_INTERNAL_88_2KHZ:
3422 		clock_source = "Internal 88.2 kHz";
3423 		break;
3424 	case HDSP_CLOCK_SOURCE_INTERNAL_96KHZ:
3425 		clock_source = "Internal 96 kHz";
3426 		break;
3427 	case HDSP_CLOCK_SOURCE_INTERNAL_128KHZ:
3428 		clock_source = "Internal 128 kHz";
3429 		break;
3430 	case HDSP_CLOCK_SOURCE_INTERNAL_176_4KHZ:
3431 		clock_source = "Internal 176.4 kHz";
3432 		break;
3433 		case HDSP_CLOCK_SOURCE_INTERNAL_192KHZ:
3434 		clock_source = "Internal 192 kHz";
3435 		break;
3436 	default:
3437 		clock_source = "Error";
3438 	}
3439 	snd_iprintf (buffer, "Sample Clock Source: %s\n", clock_source);
3440 
3441 	if (hdsp_system_clock_mode(hdsp))
3442 		system_clock_mode = "Slave";
3443 	else
3444 		system_clock_mode = "Master";
3445 
3446 	switch (hdsp_pref_sync_ref (hdsp)) {
3447 	case HDSP_SYNC_FROM_WORD:
3448 		pref_sync_ref = "Word Clock";
3449 		break;
3450 	case HDSP_SYNC_FROM_ADAT_SYNC:
3451 		pref_sync_ref = "ADAT Sync";
3452 		break;
3453 	case HDSP_SYNC_FROM_SPDIF:
3454 		pref_sync_ref = "SPDIF";
3455 		break;
3456 	case HDSP_SYNC_FROM_ADAT1:
3457 		pref_sync_ref = "ADAT1";
3458 		break;
3459 	case HDSP_SYNC_FROM_ADAT2:
3460 		pref_sync_ref = "ADAT2";
3461 		break;
3462 	case HDSP_SYNC_FROM_ADAT3:
3463 		pref_sync_ref = "ADAT3";
3464 		break;
3465 	default:
3466 		pref_sync_ref = "Word Clock";
3467 		break;
3468 	}
3469 	snd_iprintf (buffer, "Preferred Sync Reference: %s\n", pref_sync_ref);
3470 
3471 	switch (hdsp_autosync_ref (hdsp)) {
3472 	case HDSP_AUTOSYNC_FROM_WORD:
3473 		autosync_ref = "Word Clock";
3474 		break;
3475 	case HDSP_AUTOSYNC_FROM_ADAT_SYNC:
3476 		autosync_ref = "ADAT Sync";
3477 		break;
3478 	case HDSP_AUTOSYNC_FROM_SPDIF:
3479 		autosync_ref = "SPDIF";
3480 		break;
3481 	case HDSP_AUTOSYNC_FROM_NONE:
3482 		autosync_ref = "None";
3483 		break;
3484 	case HDSP_AUTOSYNC_FROM_ADAT1:
3485 		autosync_ref = "ADAT1";
3486 		break;
3487 	case HDSP_AUTOSYNC_FROM_ADAT2:
3488 		autosync_ref = "ADAT2";
3489 		break;
3490 	case HDSP_AUTOSYNC_FROM_ADAT3:
3491 		autosync_ref = "ADAT3";
3492 		break;
3493 	default:
3494 		autosync_ref = "---";
3495 		break;
3496 	}
3497 	snd_iprintf (buffer, "AutoSync Reference: %s\n", autosync_ref);
3498 
3499 	snd_iprintf (buffer, "AutoSync Frequency: %d\n", hdsp_external_sample_rate(hdsp));
3500 
3501 	snd_iprintf (buffer, "System Clock Mode: %s\n", system_clock_mode);
3502 
3503 	snd_iprintf (buffer, "System Clock Frequency: %d\n", hdsp->system_sample_rate);
3504 	snd_iprintf (buffer, "System Clock Locked: %s\n", hdsp->clock_source_locked ? "Yes" : "No");
3505 
3506 	snd_iprintf(buffer, "\n");
3507 
3508 	if (hdsp->io_type != RPM) {
3509 		switch (hdsp_spdif_in(hdsp)) {
3510 		case HDSP_SPDIFIN_OPTICAL:
3511 			snd_iprintf(buffer, "IEC958 input: Optical\n");
3512 			break;
3513 		case HDSP_SPDIFIN_COAXIAL:
3514 			snd_iprintf(buffer, "IEC958 input: Coaxial\n");
3515 			break;
3516 		case HDSP_SPDIFIN_INTERNAL:
3517 			snd_iprintf(buffer, "IEC958 input: Internal\n");
3518 			break;
3519 		case HDSP_SPDIFIN_AES:
3520 			snd_iprintf(buffer, "IEC958 input: AES\n");
3521 			break;
3522 		default:
3523 			snd_iprintf(buffer, "IEC958 input: ???\n");
3524 			break;
3525 		}
3526 	}
3527 
3528 	if (RPM == hdsp->io_type) {
3529 		if (hdsp->control_register & HDSP_RPM_Bypass)
3530 			snd_iprintf(buffer, "RPM Bypass: disabled\n");
3531 		else
3532 			snd_iprintf(buffer, "RPM Bypass: enabled\n");
3533 		if (hdsp->control_register & HDSP_RPM_Disconnect)
3534 			snd_iprintf(buffer, "RPM disconnected\n");
3535 		else
3536 			snd_iprintf(buffer, "RPM connected\n");
3537 
3538 		switch (hdsp->control_register & HDSP_RPM_Inp12) {
3539 		case HDSP_RPM_Inp12_Phon_6dB:
3540 			snd_iprintf(buffer, "Input 1/2: Phono, 6dB\n");
3541 			break;
3542 		case HDSP_RPM_Inp12_Phon_0dB:
3543 			snd_iprintf(buffer, "Input 1/2: Phono, 0dB\n");
3544 			break;
3545 		case HDSP_RPM_Inp12_Phon_n6dB:
3546 			snd_iprintf(buffer, "Input 1/2: Phono, -6dB\n");
3547 			break;
3548 		case HDSP_RPM_Inp12_Line_0dB:
3549 			snd_iprintf(buffer, "Input 1/2: Line, 0dB\n");
3550 			break;
3551 		case HDSP_RPM_Inp12_Line_n6dB:
3552 			snd_iprintf(buffer, "Input 1/2: Line, -6dB\n");
3553 			break;
3554 		default:
3555 			snd_iprintf(buffer, "Input 1/2: ???\n");
3556 		}
3557 
3558 		switch (hdsp->control_register & HDSP_RPM_Inp34) {
3559 		case HDSP_RPM_Inp34_Phon_6dB:
3560 			snd_iprintf(buffer, "Input 3/4: Phono, 6dB\n");
3561 			break;
3562 		case HDSP_RPM_Inp34_Phon_0dB:
3563 			snd_iprintf(buffer, "Input 3/4: Phono, 0dB\n");
3564 			break;
3565 		case HDSP_RPM_Inp34_Phon_n6dB:
3566 			snd_iprintf(buffer, "Input 3/4: Phono, -6dB\n");
3567 			break;
3568 		case HDSP_RPM_Inp34_Line_0dB:
3569 			snd_iprintf(buffer, "Input 3/4: Line, 0dB\n");
3570 			break;
3571 		case HDSP_RPM_Inp34_Line_n6dB:
3572 			snd_iprintf(buffer, "Input 3/4: Line, -6dB\n");
3573 			break;
3574 		default:
3575 			snd_iprintf(buffer, "Input 3/4: ???\n");
3576 		}
3577 
3578 	} else {
3579 		if (hdsp->control_register & HDSP_SPDIFOpticalOut)
3580 			snd_iprintf(buffer, "IEC958 output: Coaxial & ADAT1\n");
3581 		else
3582 			snd_iprintf(buffer, "IEC958 output: Coaxial only\n");
3583 
3584 		if (hdsp->control_register & HDSP_SPDIFProfessional)
3585 			snd_iprintf(buffer, "IEC958 quality: Professional\n");
3586 		else
3587 			snd_iprintf(buffer, "IEC958 quality: Consumer\n");
3588 
3589 		if (hdsp->control_register & HDSP_SPDIFEmphasis)
3590 			snd_iprintf(buffer, "IEC958 emphasis: on\n");
3591 		else
3592 			snd_iprintf(buffer, "IEC958 emphasis: off\n");
3593 
3594 		if (hdsp->control_register & HDSP_SPDIFNonAudio)
3595 			snd_iprintf(buffer, "IEC958 NonAudio: on\n");
3596 		else
3597 			snd_iprintf(buffer, "IEC958 NonAudio: off\n");
3598 		x = hdsp_spdif_sample_rate(hdsp);
3599 		if (x != 0)
3600 			snd_iprintf(buffer, "IEC958 sample rate: %d\n", x);
3601 		else
3602 			snd_iprintf(buffer, "IEC958 sample rate: Error flag set\n");
3603 	}
3604 	snd_iprintf(buffer, "\n");
3605 
3606 	/* Sync Check */
3607 	x = status & HDSP_Sync0;
3608 	if (status & HDSP_Lock0)
3609 		snd_iprintf(buffer, "ADAT1: %s\n", x ? "Sync" : "Lock");
3610 	else
3611 		snd_iprintf(buffer, "ADAT1: No Lock\n");
3612 
3613 	switch (hdsp->io_type) {
3614 	case Digiface:
3615 	case H9652:
3616 		x = status & HDSP_Sync1;
3617 		if (status & HDSP_Lock1)
3618 			snd_iprintf(buffer, "ADAT2: %s\n", x ? "Sync" : "Lock");
3619 		else
3620 			snd_iprintf(buffer, "ADAT2: No Lock\n");
3621 		x = status & HDSP_Sync2;
3622 		if (status & HDSP_Lock2)
3623 			snd_iprintf(buffer, "ADAT3: %s\n", x ? "Sync" : "Lock");
3624 		else
3625 			snd_iprintf(buffer, "ADAT3: No Lock\n");
3626 		break;
3627 	default:
3628 		/* relax */
3629 		break;
3630 	}
3631 
3632 	x = status & HDSP_SPDIFSync;
3633 	if (status & HDSP_SPDIFErrorFlag)
3634 		snd_iprintf (buffer, "SPDIF: No Lock\n");
3635 	else
3636 		snd_iprintf (buffer, "SPDIF: %s\n", x ? "Sync" : "Lock");
3637 
3638 	x = status2 & HDSP_wc_sync;
3639 	if (status2 & HDSP_wc_lock)
3640 		snd_iprintf (buffer, "Word Clock: %s\n", x ? "Sync" : "Lock");
3641 	else
3642 		snd_iprintf (buffer, "Word Clock: No Lock\n");
3643 
3644 	x = status & HDSP_TimecodeSync;
3645 	if (status & HDSP_TimecodeLock)
3646 		snd_iprintf(buffer, "ADAT Sync: %s\n", x ? "Sync" : "Lock");
3647 	else
3648 		snd_iprintf(buffer, "ADAT Sync: No Lock\n");
3649 
3650 	snd_iprintf(buffer, "\n");
3651 
3652 	/* Informations about H9632 specific controls */
3653 	if (hdsp->io_type == H9632) {
3654 		char *tmp;
3655 
3656 		switch (hdsp_ad_gain(hdsp)) {
3657 		case 0:
3658 			tmp = "-10 dBV";
3659 			break;
3660 		case 1:
3661 			tmp = "+4 dBu";
3662 			break;
3663 		default:
3664 			tmp = "Lo Gain";
3665 			break;
3666 		}
3667 		snd_iprintf(buffer, "AD Gain : %s\n", tmp);
3668 
3669 		switch (hdsp_da_gain(hdsp)) {
3670 		case 0:
3671 			tmp = "Hi Gain";
3672 			break;
3673 		case 1:
3674 			tmp = "+4 dBu";
3675 			break;
3676 		default:
3677 			tmp = "-10 dBV";
3678 			break;
3679 		}
3680 		snd_iprintf(buffer, "DA Gain : %s\n", tmp);
3681 
3682 		switch (hdsp_phone_gain(hdsp)) {
3683 		case 0:
3684 			tmp = "0 dB";
3685 			break;
3686 		case 1:
3687 			tmp = "-6 dB";
3688 			break;
3689 		default:
3690 			tmp = "-12 dB";
3691 			break;
3692 		}
3693 		snd_iprintf(buffer, "Phones Gain : %s\n", tmp);
3694 
3695 		snd_iprintf(buffer, "XLR Breakout Cable : %s\n",
3696 			hdsp_toggle_setting(hdsp, HDSP_XLRBreakoutCable) ?
3697 			"yes" : "no");
3698 
3699 		if (hdsp->control_register & HDSP_AnalogExtensionBoard)
3700 			snd_iprintf(buffer, "AEB : on (ADAT1 internal)\n");
3701 		else
3702 			snd_iprintf(buffer, "AEB : off (ADAT1 external)\n");
3703 		snd_iprintf(buffer, "\n");
3704 	}
3705 
3706 }
3707 
3708 static void snd_hdsp_proc_init(struct hdsp *hdsp)
3709 {
3710 	struct snd_info_entry *entry;
3711 
3712 	if (! snd_card_proc_new(hdsp->card, "hdsp", &entry))
3713 		snd_info_set_text_ops(entry, hdsp, snd_hdsp_proc_read);
3714 }
3715 
3716 static void snd_hdsp_free_buffers(struct hdsp *hdsp)
3717 {
3718 	snd_hammerfall_free_buffer(&hdsp->capture_dma_buf, hdsp->pci);
3719 	snd_hammerfall_free_buffer(&hdsp->playback_dma_buf, hdsp->pci);
3720 }
3721 
3722 static int snd_hdsp_initialize_memory(struct hdsp *hdsp)
3723 {
3724 	unsigned long pb_bus, cb_bus;
3725 
3726 	if (snd_hammerfall_get_buffer(hdsp->pci, &hdsp->capture_dma_buf, HDSP_DMA_AREA_BYTES) < 0 ||
3727 	    snd_hammerfall_get_buffer(hdsp->pci, &hdsp->playback_dma_buf, HDSP_DMA_AREA_BYTES) < 0) {
3728 		if (hdsp->capture_dma_buf.area)
3729 			snd_dma_free_pages(&hdsp->capture_dma_buf);
3730 		dev_err(hdsp->card->dev,
3731 			"%s: no buffers available\n", hdsp->card_name);
3732 		return -ENOMEM;
3733 	}
3734 
3735 	/* Align to bus-space 64K boundary */
3736 
3737 	cb_bus = ALIGN(hdsp->capture_dma_buf.addr, 0x10000ul);
3738 	pb_bus = ALIGN(hdsp->playback_dma_buf.addr, 0x10000ul);
3739 
3740 	/* Tell the card where it is */
3741 
3742 	hdsp_write(hdsp, HDSP_inputBufferAddress, cb_bus);
3743 	hdsp_write(hdsp, HDSP_outputBufferAddress, pb_bus);
3744 
3745 	hdsp->capture_buffer = hdsp->capture_dma_buf.area + (cb_bus - hdsp->capture_dma_buf.addr);
3746 	hdsp->playback_buffer = hdsp->playback_dma_buf.area + (pb_bus - hdsp->playback_dma_buf.addr);
3747 
3748 	return 0;
3749 }
3750 
3751 static int snd_hdsp_set_defaults(struct hdsp *hdsp)
3752 {
3753 	unsigned int i;
3754 
3755 	/* ASSUMPTION: hdsp->lock is either held, or
3756 	   there is no need to hold it (e.g. during module
3757 	   initialization).
3758 	 */
3759 
3760 	/* set defaults:
3761 
3762 	   SPDIF Input via Coax
3763 	   Master clock mode
3764 	   maximum latency (7 => 2^7 = 8192 samples, 64Kbyte buffer,
3765 	                    which implies 2 4096 sample, 32Kbyte periods).
3766            Enable line out.
3767 	 */
3768 
3769 	hdsp->control_register = HDSP_ClockModeMaster |
3770 		                 HDSP_SPDIFInputCoaxial |
3771 		                 hdsp_encode_latency(7) |
3772 		                 HDSP_LineOut;
3773 
3774 
3775 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
3776 
3777 #ifdef SNDRV_BIG_ENDIAN
3778 	hdsp->control2_register = HDSP_BIGENDIAN_MODE;
3779 #else
3780 	hdsp->control2_register = 0;
3781 #endif
3782 	if (hdsp->io_type == H9652)
3783 	        snd_hdsp_9652_enable_mixer (hdsp);
3784 	else
3785 		hdsp_write (hdsp, HDSP_control2Reg, hdsp->control2_register);
3786 
3787 	hdsp_reset_hw_pointer(hdsp);
3788 	hdsp_compute_period_size(hdsp);
3789 
3790 	/* silence everything */
3791 
3792 	for (i = 0; i < HDSP_MATRIX_MIXER_SIZE; ++i)
3793 		hdsp->mixer_matrix[i] = MINUS_INFINITY_GAIN;
3794 
3795 	for (i = 0; i < ((hdsp->io_type == H9652 || hdsp->io_type == H9632) ? 1352 : HDSP_MATRIX_MIXER_SIZE); ++i) {
3796 		if (hdsp_write_gain (hdsp, i, MINUS_INFINITY_GAIN))
3797 			return -EIO;
3798 	}
3799 
3800 	/* H9632 specific defaults */
3801 	if (hdsp->io_type == H9632) {
3802 		hdsp->control_register |= (HDSP_DAGainPlus4dBu | HDSP_ADGainPlus4dBu | HDSP_PhoneGain0dB);
3803 		hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
3804 	}
3805 
3806 	/* set a default rate so that the channel map is set up.
3807 	 */
3808 
3809 	hdsp_set_rate(hdsp, 48000, 1);
3810 
3811 	return 0;
3812 }
3813 
3814 static void hdsp_midi_tasklet(unsigned long arg)
3815 {
3816 	struct hdsp *hdsp = (struct hdsp *)arg;
3817 
3818 	if (hdsp->midi[0].pending)
3819 		snd_hdsp_midi_input_read (&hdsp->midi[0]);
3820 	if (hdsp->midi[1].pending)
3821 		snd_hdsp_midi_input_read (&hdsp->midi[1]);
3822 }
3823 
3824 static irqreturn_t snd_hdsp_interrupt(int irq, void *dev_id)
3825 {
3826 	struct hdsp *hdsp = (struct hdsp *) dev_id;
3827 	unsigned int status;
3828 	int audio;
3829 	int midi0;
3830 	int midi1;
3831 	unsigned int midi0status;
3832 	unsigned int midi1status;
3833 	int schedule = 0;
3834 
3835 	status = hdsp_read(hdsp, HDSP_statusRegister);
3836 
3837 	audio = status & HDSP_audioIRQPending;
3838 	midi0 = status & HDSP_midi0IRQPending;
3839 	midi1 = status & HDSP_midi1IRQPending;
3840 
3841 	if (!audio && !midi0 && !midi1)
3842 		return IRQ_NONE;
3843 
3844 	hdsp_write(hdsp, HDSP_interruptConfirmation, 0);
3845 
3846 	midi0status = hdsp_read (hdsp, HDSP_midiStatusIn0) & 0xff;
3847 	midi1status = hdsp_read (hdsp, HDSP_midiStatusIn1) & 0xff;
3848 
3849 	if (!(hdsp->state & HDSP_InitializationComplete))
3850 		return IRQ_HANDLED;
3851 
3852 	if (audio) {
3853 		if (hdsp->capture_substream)
3854 			snd_pcm_period_elapsed(hdsp->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
3855 
3856 		if (hdsp->playback_substream)
3857 			snd_pcm_period_elapsed(hdsp->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream);
3858 	}
3859 
3860 	if (midi0 && midi0status) {
3861 		if (hdsp->use_midi_tasklet) {
3862 			/* we disable interrupts for this input until processing is done */
3863 			hdsp->control_register &= ~HDSP_Midi0InterruptEnable;
3864 			hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
3865 			hdsp->midi[0].pending = 1;
3866 			schedule = 1;
3867 		} else {
3868 			snd_hdsp_midi_input_read (&hdsp->midi[0]);
3869 		}
3870 	}
3871 	if (hdsp->io_type != Multiface && hdsp->io_type != RPM && hdsp->io_type != H9632 && midi1 && midi1status) {
3872 		if (hdsp->use_midi_tasklet) {
3873 			/* we disable interrupts for this input until processing is done */
3874 			hdsp->control_register &= ~HDSP_Midi1InterruptEnable;
3875 			hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
3876 			hdsp->midi[1].pending = 1;
3877 			schedule = 1;
3878 		} else {
3879 			snd_hdsp_midi_input_read (&hdsp->midi[1]);
3880 		}
3881 	}
3882 	if (hdsp->use_midi_tasklet && schedule)
3883 		tasklet_schedule(&hdsp->midi_tasklet);
3884 	return IRQ_HANDLED;
3885 }
3886 
3887 static snd_pcm_uframes_t snd_hdsp_hw_pointer(struct snd_pcm_substream *substream)
3888 {
3889 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3890 	return hdsp_hw_pointer(hdsp);
3891 }
3892 
3893 static char *hdsp_channel_buffer_location(struct hdsp *hdsp,
3894 					     int stream,
3895 					     int channel)
3896 
3897 {
3898 	int mapped_channel;
3899 
3900         if (snd_BUG_ON(channel < 0 || channel >= hdsp->max_channels))
3901 		return NULL;
3902 
3903 	if ((mapped_channel = hdsp->channel_map[channel]) < 0)
3904 		return NULL;
3905 
3906 	if (stream == SNDRV_PCM_STREAM_CAPTURE)
3907 		return hdsp->capture_buffer + (mapped_channel * HDSP_CHANNEL_BUFFER_BYTES);
3908 	else
3909 		return hdsp->playback_buffer + (mapped_channel * HDSP_CHANNEL_BUFFER_BYTES);
3910 }
3911 
3912 static int snd_hdsp_playback_copy(struct snd_pcm_substream *substream,
3913 				  int channel, unsigned long pos,
3914 				  void __user *src, unsigned long count)
3915 {
3916 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3917 	char *channel_buf;
3918 
3919 	if (snd_BUG_ON(pos + count > HDSP_CHANNEL_BUFFER_BYTES))
3920 		return -EINVAL;
3921 
3922 	channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);
3923 	if (snd_BUG_ON(!channel_buf))
3924 		return -EIO;
3925 	if (copy_from_user(channel_buf + pos, src, count))
3926 		return -EFAULT;
3927 	return 0;
3928 }
3929 
3930 static int snd_hdsp_playback_copy_kernel(struct snd_pcm_substream *substream,
3931 					 int channel, unsigned long pos,
3932 					 void *src, unsigned long count)
3933 {
3934 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3935 	char *channel_buf;
3936 
3937 	channel_buf = hdsp_channel_buffer_location(hdsp, substream->pstr->stream, channel);
3938 	if (snd_BUG_ON(!channel_buf))
3939 		return -EIO;
3940 	memcpy(channel_buf + pos, src, count);
3941 	return 0;
3942 }
3943 
3944 static int snd_hdsp_capture_copy(struct snd_pcm_substream *substream,
3945 				 int channel, unsigned long pos,
3946 				 void __user *dst, unsigned long count)
3947 {
3948 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3949 	char *channel_buf;
3950 
3951 	if (snd_BUG_ON(pos + count > HDSP_CHANNEL_BUFFER_BYTES))
3952 		return -EINVAL;
3953 
3954 	channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);
3955 	if (snd_BUG_ON(!channel_buf))
3956 		return -EIO;
3957 	if (copy_to_user(dst, channel_buf + pos, count))
3958 		return -EFAULT;
3959 	return 0;
3960 }
3961 
3962 static int snd_hdsp_capture_copy_kernel(struct snd_pcm_substream *substream,
3963 					int channel, unsigned long pos,
3964 					void *dst, unsigned long count)
3965 {
3966 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3967 	char *channel_buf;
3968 
3969 	channel_buf = hdsp_channel_buffer_location(hdsp, substream->pstr->stream, channel);
3970 	if (snd_BUG_ON(!channel_buf))
3971 		return -EIO;
3972 	memcpy(dst, channel_buf + pos, count);
3973 	return 0;
3974 }
3975 
3976 static int snd_hdsp_hw_silence(struct snd_pcm_substream *substream,
3977 			       int channel, unsigned long pos,
3978 			       unsigned long count)
3979 {
3980 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3981 	char *channel_buf;
3982 
3983 	channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);
3984 	if (snd_BUG_ON(!channel_buf))
3985 		return -EIO;
3986 	memset(channel_buf + pos, 0, count);
3987 	return 0;
3988 }
3989 
3990 static int snd_hdsp_reset(struct snd_pcm_substream *substream)
3991 {
3992 	struct snd_pcm_runtime *runtime = substream->runtime;
3993 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3994 	struct snd_pcm_substream *other;
3995 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
3996 		other = hdsp->capture_substream;
3997 	else
3998 		other = hdsp->playback_substream;
3999 	if (hdsp->running)
4000 		runtime->status->hw_ptr = hdsp_hw_pointer(hdsp);
4001 	else
4002 		runtime->status->hw_ptr = 0;
4003 	if (other) {
4004 		struct snd_pcm_substream *s;
4005 		struct snd_pcm_runtime *oruntime = other->runtime;
4006 		snd_pcm_group_for_each_entry(s, substream) {
4007 			if (s == other) {
4008 				oruntime->status->hw_ptr = runtime->status->hw_ptr;
4009 				break;
4010 			}
4011 		}
4012 	}
4013 	return 0;
4014 }
4015 
4016 static int snd_hdsp_hw_params(struct snd_pcm_substream *substream,
4017 				 struct snd_pcm_hw_params *params)
4018 {
4019 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
4020 	int err;
4021 	pid_t this_pid;
4022 	pid_t other_pid;
4023 
4024 	if (hdsp_check_for_iobox (hdsp))
4025 		return -EIO;
4026 
4027 	if (hdsp_check_for_firmware(hdsp, 1))
4028 		return -EIO;
4029 
4030 	spin_lock_irq(&hdsp->lock);
4031 
4032 	if (substream->pstr->stream == SNDRV_PCM_STREAM_PLAYBACK) {
4033 		hdsp->control_register &= ~(HDSP_SPDIFProfessional | HDSP_SPDIFNonAudio | HDSP_SPDIFEmphasis);
4034 		hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register |= hdsp->creg_spdif_stream);
4035 		this_pid = hdsp->playback_pid;
4036 		other_pid = hdsp->capture_pid;
4037 	} else {
4038 		this_pid = hdsp->capture_pid;
4039 		other_pid = hdsp->playback_pid;
4040 	}
4041 
4042 	if ((other_pid > 0) && (this_pid != other_pid)) {
4043 
4044 		/* The other stream is open, and not by the same
4045 		   task as this one. Make sure that the parameters
4046 		   that matter are the same.
4047 		 */
4048 
4049 		if (params_rate(params) != hdsp->system_sample_rate) {
4050 			spin_unlock_irq(&hdsp->lock);
4051 			_snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_RATE);
4052 			return -EBUSY;
4053 		}
4054 
4055 		if (params_period_size(params) != hdsp->period_bytes / 4) {
4056 			spin_unlock_irq(&hdsp->lock);
4057 			_snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE);
4058 			return -EBUSY;
4059 		}
4060 
4061 		/* We're fine. */
4062 
4063 		spin_unlock_irq(&hdsp->lock);
4064  		return 0;
4065 
4066 	} else {
4067 		spin_unlock_irq(&hdsp->lock);
4068 	}
4069 
4070 	/* how to make sure that the rate matches an externally-set one ?
4071 	 */
4072 
4073 	spin_lock_irq(&hdsp->lock);
4074 	if (! hdsp->clock_source_locked) {
4075 		if ((err = hdsp_set_rate(hdsp, params_rate(params), 0)) < 0) {
4076 			spin_unlock_irq(&hdsp->lock);
4077 			_snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_RATE);
4078 			return err;
4079 		}
4080 	}
4081 	spin_unlock_irq(&hdsp->lock);
4082 
4083 	if ((err = hdsp_set_interrupt_interval(hdsp, params_period_size(params))) < 0) {
4084 		_snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE);
4085 		return err;
4086 	}
4087 
4088 	return 0;
4089 }
4090 
4091 static int snd_hdsp_channel_info(struct snd_pcm_substream *substream,
4092 				    struct snd_pcm_channel_info *info)
4093 {
4094 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
4095 	int mapped_channel;
4096 
4097 	if (snd_BUG_ON(info->channel >= hdsp->max_channels))
4098 		return -EINVAL;
4099 
4100 	if ((mapped_channel = hdsp->channel_map[info->channel]) < 0)
4101 		return -EINVAL;
4102 
4103 	info->offset = mapped_channel * HDSP_CHANNEL_BUFFER_BYTES;
4104 	info->first = 0;
4105 	info->step = 32;
4106 	return 0;
4107 }
4108 
4109 static int snd_hdsp_ioctl(struct snd_pcm_substream *substream,
4110 			     unsigned int cmd, void *arg)
4111 {
4112 	switch (cmd) {
4113 	case SNDRV_PCM_IOCTL1_RESET:
4114 		return snd_hdsp_reset(substream);
4115 	case SNDRV_PCM_IOCTL1_CHANNEL_INFO:
4116 		return snd_hdsp_channel_info(substream, arg);
4117 	default:
4118 		break;
4119 	}
4120 
4121 	return snd_pcm_lib_ioctl(substream, cmd, arg);
4122 }
4123 
4124 static int snd_hdsp_trigger(struct snd_pcm_substream *substream, int cmd)
4125 {
4126 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
4127 	struct snd_pcm_substream *other;
4128 	int running;
4129 
4130 	if (hdsp_check_for_iobox (hdsp))
4131 		return -EIO;
4132 
4133 	if (hdsp_check_for_firmware(hdsp, 0)) /* no auto-loading in trigger */
4134 		return -EIO;
4135 
4136 	spin_lock(&hdsp->lock);
4137 	running = hdsp->running;
4138 	switch (cmd) {
4139 	case SNDRV_PCM_TRIGGER_START:
4140 		running |= 1 << substream->stream;
4141 		break;
4142 	case SNDRV_PCM_TRIGGER_STOP:
4143 		running &= ~(1 << substream->stream);
4144 		break;
4145 	default:
4146 		snd_BUG();
4147 		spin_unlock(&hdsp->lock);
4148 		return -EINVAL;
4149 	}
4150 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
4151 		other = hdsp->capture_substream;
4152 	else
4153 		other = hdsp->playback_substream;
4154 
4155 	if (other) {
4156 		struct snd_pcm_substream *s;
4157 		snd_pcm_group_for_each_entry(s, substream) {
4158 			if (s == other) {
4159 				snd_pcm_trigger_done(s, substream);
4160 				if (cmd == SNDRV_PCM_TRIGGER_START)
4161 					running |= 1 << s->stream;
4162 				else
4163 					running &= ~(1 << s->stream);
4164 				goto _ok;
4165 			}
4166 		}
4167 		if (cmd == SNDRV_PCM_TRIGGER_START) {
4168 			if (!(running & (1 << SNDRV_PCM_STREAM_PLAYBACK)) &&
4169 			    substream->stream == SNDRV_PCM_STREAM_CAPTURE)
4170 				hdsp_silence_playback(hdsp);
4171 		} else {
4172 			if (running &&
4173 			    substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
4174 				hdsp_silence_playback(hdsp);
4175 		}
4176 	} else {
4177 		if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
4178 				hdsp_silence_playback(hdsp);
4179 	}
4180  _ok:
4181 	snd_pcm_trigger_done(substream, substream);
4182 	if (!hdsp->running && running)
4183 		hdsp_start_audio(hdsp);
4184 	else if (hdsp->running && !running)
4185 		hdsp_stop_audio(hdsp);
4186 	hdsp->running = running;
4187 	spin_unlock(&hdsp->lock);
4188 
4189 	return 0;
4190 }
4191 
4192 static int snd_hdsp_prepare(struct snd_pcm_substream *substream)
4193 {
4194 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
4195 	int result = 0;
4196 
4197 	if (hdsp_check_for_iobox (hdsp))
4198 		return -EIO;
4199 
4200 	if (hdsp_check_for_firmware(hdsp, 1))
4201 		return -EIO;
4202 
4203 	spin_lock_irq(&hdsp->lock);
4204 	if (!hdsp->running)
4205 		hdsp_reset_hw_pointer(hdsp);
4206 	spin_unlock_irq(&hdsp->lock);
4207 	return result;
4208 }
4209 
4210 static const struct snd_pcm_hardware snd_hdsp_playback_subinfo =
4211 {
4212 	.info =			(SNDRV_PCM_INFO_MMAP |
4213 				 SNDRV_PCM_INFO_MMAP_VALID |
4214 				 SNDRV_PCM_INFO_NONINTERLEAVED |
4215 				 SNDRV_PCM_INFO_SYNC_START |
4216 				 SNDRV_PCM_INFO_DOUBLE),
4217 #ifdef SNDRV_BIG_ENDIAN
4218 	.formats =		SNDRV_PCM_FMTBIT_S32_BE,
4219 #else
4220 	.formats =		SNDRV_PCM_FMTBIT_S32_LE,
4221 #endif
4222 	.rates =		(SNDRV_PCM_RATE_32000 |
4223 				 SNDRV_PCM_RATE_44100 |
4224 				 SNDRV_PCM_RATE_48000 |
4225 				 SNDRV_PCM_RATE_64000 |
4226 				 SNDRV_PCM_RATE_88200 |
4227 				 SNDRV_PCM_RATE_96000),
4228 	.rate_min =		32000,
4229 	.rate_max =		96000,
4230 	.channels_min =		6,
4231 	.channels_max =		HDSP_MAX_CHANNELS,
4232 	.buffer_bytes_max =	HDSP_CHANNEL_BUFFER_BYTES * HDSP_MAX_CHANNELS,
4233 	.period_bytes_min =	(64 * 4) * 10,
4234 	.period_bytes_max =	(8192 * 4) * HDSP_MAX_CHANNELS,
4235 	.periods_min =		2,
4236 	.periods_max =		2,
4237 	.fifo_size =		0
4238 };
4239 
4240 static const struct snd_pcm_hardware snd_hdsp_capture_subinfo =
4241 {
4242 	.info =			(SNDRV_PCM_INFO_MMAP |
4243 				 SNDRV_PCM_INFO_MMAP_VALID |
4244 				 SNDRV_PCM_INFO_NONINTERLEAVED |
4245 				 SNDRV_PCM_INFO_SYNC_START),
4246 #ifdef SNDRV_BIG_ENDIAN
4247 	.formats =		SNDRV_PCM_FMTBIT_S32_BE,
4248 #else
4249 	.formats =		SNDRV_PCM_FMTBIT_S32_LE,
4250 #endif
4251 	.rates =		(SNDRV_PCM_RATE_32000 |
4252 				 SNDRV_PCM_RATE_44100 |
4253 				 SNDRV_PCM_RATE_48000 |
4254 				 SNDRV_PCM_RATE_64000 |
4255 				 SNDRV_PCM_RATE_88200 |
4256 				 SNDRV_PCM_RATE_96000),
4257 	.rate_min =		32000,
4258 	.rate_max =		96000,
4259 	.channels_min =		5,
4260 	.channels_max =		HDSP_MAX_CHANNELS,
4261 	.buffer_bytes_max =	HDSP_CHANNEL_BUFFER_BYTES * HDSP_MAX_CHANNELS,
4262 	.period_bytes_min =	(64 * 4) * 10,
4263 	.period_bytes_max =	(8192 * 4) * HDSP_MAX_CHANNELS,
4264 	.periods_min =		2,
4265 	.periods_max =		2,
4266 	.fifo_size =		0
4267 };
4268 
4269 static const unsigned int hdsp_period_sizes[] = { 64, 128, 256, 512, 1024, 2048, 4096, 8192 };
4270 
4271 static const struct snd_pcm_hw_constraint_list hdsp_hw_constraints_period_sizes = {
4272 	.count = ARRAY_SIZE(hdsp_period_sizes),
4273 	.list = hdsp_period_sizes,
4274 	.mask = 0
4275 };
4276 
4277 static const unsigned int hdsp_9632_sample_rates[] = { 32000, 44100, 48000, 64000, 88200, 96000, 128000, 176400, 192000 };
4278 
4279 static const struct snd_pcm_hw_constraint_list hdsp_hw_constraints_9632_sample_rates = {
4280 	.count = ARRAY_SIZE(hdsp_9632_sample_rates),
4281 	.list = hdsp_9632_sample_rates,
4282 	.mask = 0
4283 };
4284 
4285 static int snd_hdsp_hw_rule_in_channels(struct snd_pcm_hw_params *params,
4286 					struct snd_pcm_hw_rule *rule)
4287 {
4288 	struct hdsp *hdsp = rule->private;
4289 	struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
4290 	if (hdsp->io_type == H9632) {
4291 		unsigned int list[3];
4292 		list[0] = hdsp->qs_in_channels;
4293 		list[1] = hdsp->ds_in_channels;
4294 		list[2] = hdsp->ss_in_channels;
4295 		return snd_interval_list(c, 3, list, 0);
4296 	} else {
4297 		unsigned int list[2];
4298 		list[0] = hdsp->ds_in_channels;
4299 		list[1] = hdsp->ss_in_channels;
4300 		return snd_interval_list(c, 2, list, 0);
4301 	}
4302 }
4303 
4304 static int snd_hdsp_hw_rule_out_channels(struct snd_pcm_hw_params *params,
4305 					struct snd_pcm_hw_rule *rule)
4306 {
4307 	unsigned int list[3];
4308 	struct hdsp *hdsp = rule->private;
4309 	struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
4310 	if (hdsp->io_type == H9632) {
4311 		list[0] = hdsp->qs_out_channels;
4312 		list[1] = hdsp->ds_out_channels;
4313 		list[2] = hdsp->ss_out_channels;
4314 		return snd_interval_list(c, 3, list, 0);
4315 	} else {
4316 		list[0] = hdsp->ds_out_channels;
4317 		list[1] = hdsp->ss_out_channels;
4318 	}
4319 	return snd_interval_list(c, 2, list, 0);
4320 }
4321 
4322 static int snd_hdsp_hw_rule_in_channels_rate(struct snd_pcm_hw_params *params,
4323 					     struct snd_pcm_hw_rule *rule)
4324 {
4325 	struct hdsp *hdsp = rule->private;
4326 	struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
4327 	struct snd_interval *r = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
4328 	if (r->min > 96000 && hdsp->io_type == H9632) {
4329 		struct snd_interval t = {
4330 			.min = hdsp->qs_in_channels,
4331 			.max = hdsp->qs_in_channels,
4332 			.integer = 1,
4333 		};
4334 		return snd_interval_refine(c, &t);
4335 	} else if (r->min > 48000 && r->max <= 96000) {
4336 		struct snd_interval t = {
4337 			.min = hdsp->ds_in_channels,
4338 			.max = hdsp->ds_in_channels,
4339 			.integer = 1,
4340 		};
4341 		return snd_interval_refine(c, &t);
4342 	} else if (r->max < 64000) {
4343 		struct snd_interval t = {
4344 			.min = hdsp->ss_in_channels,
4345 			.max = hdsp->ss_in_channels,
4346 			.integer = 1,
4347 		};
4348 		return snd_interval_refine(c, &t);
4349 	}
4350 	return 0;
4351 }
4352 
4353 static int snd_hdsp_hw_rule_out_channels_rate(struct snd_pcm_hw_params *params,
4354 					     struct snd_pcm_hw_rule *rule)
4355 {
4356 	struct hdsp *hdsp = rule->private;
4357 	struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
4358 	struct snd_interval *r = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
4359 	if (r->min > 96000 && hdsp->io_type == H9632) {
4360 		struct snd_interval t = {
4361 			.min = hdsp->qs_out_channels,
4362 			.max = hdsp->qs_out_channels,
4363 			.integer = 1,
4364 		};
4365 		return snd_interval_refine(c, &t);
4366 	} else if (r->min > 48000 && r->max <= 96000) {
4367 		struct snd_interval t = {
4368 			.min = hdsp->ds_out_channels,
4369 			.max = hdsp->ds_out_channels,
4370 			.integer = 1,
4371 		};
4372 		return snd_interval_refine(c, &t);
4373 	} else if (r->max < 64000) {
4374 		struct snd_interval t = {
4375 			.min = hdsp->ss_out_channels,
4376 			.max = hdsp->ss_out_channels,
4377 			.integer = 1,
4378 		};
4379 		return snd_interval_refine(c, &t);
4380 	}
4381 	return 0;
4382 }
4383 
4384 static int snd_hdsp_hw_rule_rate_out_channels(struct snd_pcm_hw_params *params,
4385 					     struct snd_pcm_hw_rule *rule)
4386 {
4387 	struct hdsp *hdsp = rule->private;
4388 	struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
4389 	struct snd_interval *r = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
4390 	if (c->min >= hdsp->ss_out_channels) {
4391 		struct snd_interval t = {
4392 			.min = 32000,
4393 			.max = 48000,
4394 			.integer = 1,
4395 		};
4396 		return snd_interval_refine(r, &t);
4397 	} else if (c->max <= hdsp->qs_out_channels && hdsp->io_type == H9632) {
4398 		struct snd_interval t = {
4399 			.min = 128000,
4400 			.max = 192000,
4401 			.integer = 1,
4402 		};
4403 		return snd_interval_refine(r, &t);
4404 	} else if (c->max <= hdsp->ds_out_channels) {
4405 		struct snd_interval t = {
4406 			.min = 64000,
4407 			.max = 96000,
4408 			.integer = 1,
4409 		};
4410 		return snd_interval_refine(r, &t);
4411 	}
4412 	return 0;
4413 }
4414 
4415 static int snd_hdsp_hw_rule_rate_in_channels(struct snd_pcm_hw_params *params,
4416 					     struct snd_pcm_hw_rule *rule)
4417 {
4418 	struct hdsp *hdsp = rule->private;
4419 	struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
4420 	struct snd_interval *r = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
4421 	if (c->min >= hdsp->ss_in_channels) {
4422 		struct snd_interval t = {
4423 			.min = 32000,
4424 			.max = 48000,
4425 			.integer = 1,
4426 		};
4427 		return snd_interval_refine(r, &t);
4428 	} else if (c->max <= hdsp->qs_in_channels && hdsp->io_type == H9632) {
4429 		struct snd_interval t = {
4430 			.min = 128000,
4431 			.max = 192000,
4432 			.integer = 1,
4433 		};
4434 		return snd_interval_refine(r, &t);
4435 	} else if (c->max <= hdsp->ds_in_channels) {
4436 		struct snd_interval t = {
4437 			.min = 64000,
4438 			.max = 96000,
4439 			.integer = 1,
4440 		};
4441 		return snd_interval_refine(r, &t);
4442 	}
4443 	return 0;
4444 }
4445 
4446 static int snd_hdsp_playback_open(struct snd_pcm_substream *substream)
4447 {
4448 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
4449 	struct snd_pcm_runtime *runtime = substream->runtime;
4450 
4451 	if (hdsp_check_for_iobox (hdsp))
4452 		return -EIO;
4453 
4454 	if (hdsp_check_for_firmware(hdsp, 1))
4455 		return -EIO;
4456 
4457 	spin_lock_irq(&hdsp->lock);
4458 
4459 	snd_pcm_set_sync(substream);
4460 
4461         runtime->hw = snd_hdsp_playback_subinfo;
4462 	runtime->dma_area = hdsp->playback_buffer;
4463 	runtime->dma_bytes = HDSP_DMA_AREA_BYTES;
4464 
4465 	hdsp->playback_pid = current->pid;
4466 	hdsp->playback_substream = substream;
4467 
4468 	spin_unlock_irq(&hdsp->lock);
4469 
4470 	snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
4471 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hdsp_hw_constraints_period_sizes);
4472 	if (hdsp->clock_source_locked) {
4473 		runtime->hw.rate_min = runtime->hw.rate_max = hdsp->system_sample_rate;
4474 	} else if (hdsp->io_type == H9632) {
4475 		runtime->hw.rate_max = 192000;
4476 		runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
4477 		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hdsp_hw_constraints_9632_sample_rates);
4478 	}
4479 	if (hdsp->io_type == H9632) {
4480 		runtime->hw.channels_min = hdsp->qs_out_channels;
4481 		runtime->hw.channels_max = hdsp->ss_out_channels;
4482 	}
4483 
4484 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
4485 			     snd_hdsp_hw_rule_out_channels, hdsp,
4486 			     SNDRV_PCM_HW_PARAM_CHANNELS, -1);
4487 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
4488 			     snd_hdsp_hw_rule_out_channels_rate, hdsp,
4489 			     SNDRV_PCM_HW_PARAM_RATE, -1);
4490 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
4491 			     snd_hdsp_hw_rule_rate_out_channels, hdsp,
4492 			     SNDRV_PCM_HW_PARAM_CHANNELS, -1);
4493 
4494 	if (RPM != hdsp->io_type) {
4495 		hdsp->creg_spdif_stream = hdsp->creg_spdif;
4496 		hdsp->spdif_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
4497 		snd_ctl_notify(hdsp->card, SNDRV_CTL_EVENT_MASK_VALUE |
4498 			SNDRV_CTL_EVENT_MASK_INFO, &hdsp->spdif_ctl->id);
4499 	}
4500 	return 0;
4501 }
4502 
4503 static int snd_hdsp_playback_release(struct snd_pcm_substream *substream)
4504 {
4505 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
4506 
4507 	spin_lock_irq(&hdsp->lock);
4508 
4509 	hdsp->playback_pid = -1;
4510 	hdsp->playback_substream = NULL;
4511 
4512 	spin_unlock_irq(&hdsp->lock);
4513 
4514 	if (RPM != hdsp->io_type) {
4515 		hdsp->spdif_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
4516 		snd_ctl_notify(hdsp->card, SNDRV_CTL_EVENT_MASK_VALUE |
4517 			SNDRV_CTL_EVENT_MASK_INFO, &hdsp->spdif_ctl->id);
4518 	}
4519 	return 0;
4520 }
4521 
4522 
4523 static int snd_hdsp_capture_open(struct snd_pcm_substream *substream)
4524 {
4525 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
4526 	struct snd_pcm_runtime *runtime = substream->runtime;
4527 
4528 	if (hdsp_check_for_iobox (hdsp))
4529 		return -EIO;
4530 
4531 	if (hdsp_check_for_firmware(hdsp, 1))
4532 		return -EIO;
4533 
4534 	spin_lock_irq(&hdsp->lock);
4535 
4536 	snd_pcm_set_sync(substream);
4537 
4538 	runtime->hw = snd_hdsp_capture_subinfo;
4539 	runtime->dma_area = hdsp->capture_buffer;
4540 	runtime->dma_bytes = HDSP_DMA_AREA_BYTES;
4541 
4542 	hdsp->capture_pid = current->pid;
4543 	hdsp->capture_substream = substream;
4544 
4545 	spin_unlock_irq(&hdsp->lock);
4546 
4547 	snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
4548 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hdsp_hw_constraints_period_sizes);
4549 	if (hdsp->io_type == H9632) {
4550 		runtime->hw.channels_min = hdsp->qs_in_channels;
4551 		runtime->hw.channels_max = hdsp->ss_in_channels;
4552 		runtime->hw.rate_max = 192000;
4553 		runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
4554 		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hdsp_hw_constraints_9632_sample_rates);
4555 	}
4556 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
4557 			     snd_hdsp_hw_rule_in_channels, hdsp,
4558 			     SNDRV_PCM_HW_PARAM_CHANNELS, -1);
4559 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
4560 			     snd_hdsp_hw_rule_in_channels_rate, hdsp,
4561 			     SNDRV_PCM_HW_PARAM_RATE, -1);
4562 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
4563 			     snd_hdsp_hw_rule_rate_in_channels, hdsp,
4564 			     SNDRV_PCM_HW_PARAM_CHANNELS, -1);
4565 	return 0;
4566 }
4567 
4568 static int snd_hdsp_capture_release(struct snd_pcm_substream *substream)
4569 {
4570 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
4571 
4572 	spin_lock_irq(&hdsp->lock);
4573 
4574 	hdsp->capture_pid = -1;
4575 	hdsp->capture_substream = NULL;
4576 
4577 	spin_unlock_irq(&hdsp->lock);
4578 	return 0;
4579 }
4580 
4581 /* helper functions for copying meter values */
4582 static inline int copy_u32_le(void __user *dest, void __iomem *src)
4583 {
4584 	u32 val = readl(src);
4585 	return copy_to_user(dest, &val, 4);
4586 }
4587 
4588 static inline int copy_u64_le(void __user *dest, void __iomem *src_low, void __iomem *src_high)
4589 {
4590 	u32 rms_low, rms_high;
4591 	u64 rms;
4592 	rms_low = readl(src_low);
4593 	rms_high = readl(src_high);
4594 	rms = ((u64)rms_high << 32) | rms_low;
4595 	return copy_to_user(dest, &rms, 8);
4596 }
4597 
4598 static inline int copy_u48_le(void __user *dest, void __iomem *src_low, void __iomem *src_high)
4599 {
4600 	u32 rms_low, rms_high;
4601 	u64 rms;
4602 	rms_low = readl(src_low) & 0xffffff00;
4603 	rms_high = readl(src_high) & 0xffffff00;
4604 	rms = ((u64)rms_high << 32) | rms_low;
4605 	return copy_to_user(dest, &rms, 8);
4606 }
4607 
4608 static int hdsp_9652_get_peak(struct hdsp *hdsp, struct hdsp_peak_rms __user *peak_rms)
4609 {
4610 	int doublespeed = 0;
4611 	int i, j, channels, ofs;
4612 
4613 	if (hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DoubleSpeedStatus)
4614 		doublespeed = 1;
4615 	channels = doublespeed ? 14 : 26;
4616 	for (i = 0, j = 0; i < 26; ++i) {
4617 		if (doublespeed && (i & 4))
4618 			continue;
4619 		ofs = HDSP_9652_peakBase - j * 4;
4620 		if (copy_u32_le(&peak_rms->input_peaks[i], hdsp->iobase + ofs))
4621 			return -EFAULT;
4622 		ofs -= channels * 4;
4623 		if (copy_u32_le(&peak_rms->playback_peaks[i], hdsp->iobase + ofs))
4624 			return -EFAULT;
4625 		ofs -= channels * 4;
4626 		if (copy_u32_le(&peak_rms->output_peaks[i], hdsp->iobase + ofs))
4627 			return -EFAULT;
4628 		ofs = HDSP_9652_rmsBase + j * 8;
4629 		if (copy_u48_le(&peak_rms->input_rms[i], hdsp->iobase + ofs,
4630 				hdsp->iobase + ofs + 4))
4631 			return -EFAULT;
4632 		ofs += channels * 8;
4633 		if (copy_u48_le(&peak_rms->playback_rms[i], hdsp->iobase + ofs,
4634 				hdsp->iobase + ofs + 4))
4635 			return -EFAULT;
4636 		ofs += channels * 8;
4637 		if (copy_u48_le(&peak_rms->output_rms[i], hdsp->iobase + ofs,
4638 				hdsp->iobase + ofs + 4))
4639 			return -EFAULT;
4640 		j++;
4641 	}
4642 	return 0;
4643 }
4644 
4645 static int hdsp_9632_get_peak(struct hdsp *hdsp, struct hdsp_peak_rms __user *peak_rms)
4646 {
4647 	int i, j;
4648 	struct hdsp_9632_meters __iomem *m;
4649 	int doublespeed = 0;
4650 
4651 	if (hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DoubleSpeedStatus)
4652 		doublespeed = 1;
4653 	m = (struct hdsp_9632_meters __iomem *)(hdsp->iobase+HDSP_9632_metersBase);
4654 	for (i = 0, j = 0; i < 16; ++i, ++j) {
4655 		if (copy_u32_le(&peak_rms->input_peaks[i], &m->input_peak[j]))
4656 			return -EFAULT;
4657 		if (copy_u32_le(&peak_rms->playback_peaks[i], &m->playback_peak[j]))
4658 			return -EFAULT;
4659 		if (copy_u32_le(&peak_rms->output_peaks[i], &m->output_peak[j]))
4660 			return -EFAULT;
4661 		if (copy_u64_le(&peak_rms->input_rms[i], &m->input_rms_low[j],
4662 				&m->input_rms_high[j]))
4663 			return -EFAULT;
4664 		if (copy_u64_le(&peak_rms->playback_rms[i], &m->playback_rms_low[j],
4665 				&m->playback_rms_high[j]))
4666 			return -EFAULT;
4667 		if (copy_u64_le(&peak_rms->output_rms[i], &m->output_rms_low[j],
4668 				&m->output_rms_high[j]))
4669 			return -EFAULT;
4670 		if (doublespeed && i == 3) i += 4;
4671 	}
4672 	return 0;
4673 }
4674 
4675 static int hdsp_get_peak(struct hdsp *hdsp, struct hdsp_peak_rms __user *peak_rms)
4676 {
4677 	int i;
4678 
4679 	for (i = 0; i < 26; i++) {
4680 		if (copy_u32_le(&peak_rms->playback_peaks[i],
4681 				hdsp->iobase + HDSP_playbackPeakLevel + i * 4))
4682 			return -EFAULT;
4683 		if (copy_u32_le(&peak_rms->input_peaks[i],
4684 				hdsp->iobase + HDSP_inputPeakLevel + i * 4))
4685 			return -EFAULT;
4686 	}
4687 	for (i = 0; i < 28; i++) {
4688 		if (copy_u32_le(&peak_rms->output_peaks[i],
4689 				hdsp->iobase + HDSP_outputPeakLevel + i * 4))
4690 			return -EFAULT;
4691 	}
4692 	for (i = 0; i < 26; ++i) {
4693 		if (copy_u64_le(&peak_rms->playback_rms[i],
4694 				hdsp->iobase + HDSP_playbackRmsLevel + i * 8 + 4,
4695 				hdsp->iobase + HDSP_playbackRmsLevel + i * 8))
4696 			return -EFAULT;
4697 		if (copy_u64_le(&peak_rms->input_rms[i],
4698 				hdsp->iobase + HDSP_inputRmsLevel + i * 8 + 4,
4699 				hdsp->iobase + HDSP_inputRmsLevel + i * 8))
4700 			return -EFAULT;
4701 	}
4702 	return 0;
4703 }
4704 
4705 static int snd_hdsp_hwdep_ioctl(struct snd_hwdep *hw, struct file *file, unsigned int cmd, unsigned long arg)
4706 {
4707 	struct hdsp *hdsp = hw->private_data;
4708 	void __user *argp = (void __user *)arg;
4709 	int err;
4710 
4711 	switch (cmd) {
4712 	case SNDRV_HDSP_IOCTL_GET_PEAK_RMS: {
4713 		struct hdsp_peak_rms __user *peak_rms = (struct hdsp_peak_rms __user *)arg;
4714 
4715 		err = hdsp_check_for_iobox(hdsp);
4716 		if (err < 0)
4717 			return err;
4718 
4719 		err = hdsp_check_for_firmware(hdsp, 1);
4720 		if (err < 0)
4721 			return err;
4722 
4723 		if (!(hdsp->state & HDSP_FirmwareLoaded)) {
4724 			dev_err(hdsp->card->dev,
4725 				"firmware needs to be uploaded to the card.\n");
4726 			return -EINVAL;
4727 		}
4728 
4729 		switch (hdsp->io_type) {
4730 		case H9652:
4731 			return hdsp_9652_get_peak(hdsp, peak_rms);
4732 		case H9632:
4733 			return hdsp_9632_get_peak(hdsp, peak_rms);
4734 		default:
4735 			return hdsp_get_peak(hdsp, peak_rms);
4736 		}
4737 	}
4738 	case SNDRV_HDSP_IOCTL_GET_CONFIG_INFO: {
4739 		struct hdsp_config_info info;
4740 		unsigned long flags;
4741 		int i;
4742 
4743 		err = hdsp_check_for_iobox(hdsp);
4744 		if (err < 0)
4745 			return err;
4746 
4747 		err = hdsp_check_for_firmware(hdsp, 1);
4748 		if (err < 0)
4749 			return err;
4750 
4751 		memset(&info, 0, sizeof(info));
4752 		spin_lock_irqsave(&hdsp->lock, flags);
4753 		info.pref_sync_ref = (unsigned char)hdsp_pref_sync_ref(hdsp);
4754 		info.wordclock_sync_check = (unsigned char)hdsp_wc_sync_check(hdsp);
4755 		if (hdsp->io_type != H9632)
4756 		    info.adatsync_sync_check = (unsigned char)hdsp_adatsync_sync_check(hdsp);
4757 		info.spdif_sync_check = (unsigned char)hdsp_spdif_sync_check(hdsp);
4758 		for (i = 0; i < ((hdsp->io_type != Multiface && hdsp->io_type != RPM && hdsp->io_type != H9632) ? 3 : 1); ++i)
4759 			info.adat_sync_check[i] = (unsigned char)hdsp_adat_sync_check(hdsp, i);
4760 		info.spdif_in = (unsigned char)hdsp_spdif_in(hdsp);
4761 		info.spdif_out = (unsigned char)hdsp_toggle_setting(hdsp,
4762 				HDSP_SPDIFOpticalOut);
4763 		info.spdif_professional = (unsigned char)
4764 			hdsp_toggle_setting(hdsp, HDSP_SPDIFProfessional);
4765 		info.spdif_emphasis = (unsigned char)
4766 			hdsp_toggle_setting(hdsp, HDSP_SPDIFEmphasis);
4767 		info.spdif_nonaudio = (unsigned char)
4768 			hdsp_toggle_setting(hdsp, HDSP_SPDIFNonAudio);
4769 		info.spdif_sample_rate = hdsp_spdif_sample_rate(hdsp);
4770 		info.system_sample_rate = hdsp->system_sample_rate;
4771 		info.autosync_sample_rate = hdsp_external_sample_rate(hdsp);
4772 		info.system_clock_mode = (unsigned char)hdsp_system_clock_mode(hdsp);
4773 		info.clock_source = (unsigned char)hdsp_clock_source(hdsp);
4774 		info.autosync_ref = (unsigned char)hdsp_autosync_ref(hdsp);
4775 		info.line_out = (unsigned char)
4776 			hdsp_toggle_setting(hdsp, HDSP_LineOut);
4777 		if (hdsp->io_type == H9632) {
4778 			info.da_gain = (unsigned char)hdsp_da_gain(hdsp);
4779 			info.ad_gain = (unsigned char)hdsp_ad_gain(hdsp);
4780 			info.phone_gain = (unsigned char)hdsp_phone_gain(hdsp);
4781 			info.xlr_breakout_cable =
4782 				(unsigned char)hdsp_toggle_setting(hdsp,
4783 					HDSP_XLRBreakoutCable);
4784 
4785 		} else if (hdsp->io_type == RPM) {
4786 			info.da_gain = (unsigned char) hdsp_rpm_input12(hdsp);
4787 			info.ad_gain = (unsigned char) hdsp_rpm_input34(hdsp);
4788 		}
4789 		if (hdsp->io_type == H9632 || hdsp->io_type == H9652)
4790 			info.analog_extension_board =
4791 				(unsigned char)hdsp_toggle_setting(hdsp,
4792 					    HDSP_AnalogExtensionBoard);
4793 		spin_unlock_irqrestore(&hdsp->lock, flags);
4794 		if (copy_to_user(argp, &info, sizeof(info)))
4795 			return -EFAULT;
4796 		break;
4797 	}
4798 	case SNDRV_HDSP_IOCTL_GET_9632_AEB: {
4799 		struct hdsp_9632_aeb h9632_aeb;
4800 
4801 		if (hdsp->io_type != H9632) return -EINVAL;
4802 		h9632_aeb.aebi = hdsp->ss_in_channels - H9632_SS_CHANNELS;
4803 		h9632_aeb.aebo = hdsp->ss_out_channels - H9632_SS_CHANNELS;
4804 		if (copy_to_user(argp, &h9632_aeb, sizeof(h9632_aeb)))
4805 			return -EFAULT;
4806 		break;
4807 	}
4808 	case SNDRV_HDSP_IOCTL_GET_VERSION: {
4809 		struct hdsp_version hdsp_version;
4810 		int err;
4811 
4812 		if (hdsp->io_type == H9652 || hdsp->io_type == H9632) return -EINVAL;
4813 		if (hdsp->io_type == Undefined) {
4814 			if ((err = hdsp_get_iobox_version(hdsp)) < 0)
4815 				return err;
4816 		}
4817 		memset(&hdsp_version, 0, sizeof(hdsp_version));
4818 		hdsp_version.io_type = hdsp->io_type;
4819 		hdsp_version.firmware_rev = hdsp->firmware_rev;
4820 		if ((err = copy_to_user(argp, &hdsp_version, sizeof(hdsp_version))))
4821 		    	return -EFAULT;
4822 		break;
4823 	}
4824 	case SNDRV_HDSP_IOCTL_UPLOAD_FIRMWARE: {
4825 		struct hdsp_firmware __user *firmware;
4826 		u32 __user *firmware_data;
4827 		int err;
4828 
4829 		if (hdsp->io_type == H9652 || hdsp->io_type == H9632) return -EINVAL;
4830 		/* SNDRV_HDSP_IOCTL_GET_VERSION must have been called */
4831 		if (hdsp->io_type == Undefined) return -EINVAL;
4832 
4833 		if (hdsp->state & (HDSP_FirmwareCached | HDSP_FirmwareLoaded))
4834 			return -EBUSY;
4835 
4836 		dev_info(hdsp->card->dev,
4837 			 "initializing firmware upload\n");
4838 		firmware = (struct hdsp_firmware __user *)argp;
4839 
4840 		if (get_user(firmware_data, &firmware->firmware_data))
4841 			return -EFAULT;
4842 
4843 		if (hdsp_check_for_iobox (hdsp))
4844 			return -EIO;
4845 
4846 		if (!hdsp->fw_uploaded) {
4847 			hdsp->fw_uploaded = vmalloc(HDSP_FIRMWARE_SIZE);
4848 			if (!hdsp->fw_uploaded)
4849 				return -ENOMEM;
4850 		}
4851 
4852 		if (copy_from_user(hdsp->fw_uploaded, firmware_data,
4853 				   HDSP_FIRMWARE_SIZE)) {
4854 			vfree(hdsp->fw_uploaded);
4855 			hdsp->fw_uploaded = NULL;
4856 			return -EFAULT;
4857 		}
4858 
4859 		hdsp->state |= HDSP_FirmwareCached;
4860 
4861 		if ((err = snd_hdsp_load_firmware_from_cache(hdsp)) < 0)
4862 			return err;
4863 
4864 		if (!(hdsp->state & HDSP_InitializationComplete)) {
4865 			if ((err = snd_hdsp_enable_io(hdsp)) < 0)
4866 				return err;
4867 
4868 			snd_hdsp_initialize_channels(hdsp);
4869 			snd_hdsp_initialize_midi_flush(hdsp);
4870 
4871 			if ((err = snd_hdsp_create_alsa_devices(hdsp->card, hdsp)) < 0) {
4872 				dev_err(hdsp->card->dev,
4873 					"error creating alsa devices\n");
4874 				return err;
4875 			}
4876 		}
4877 		break;
4878 	}
4879 	case SNDRV_HDSP_IOCTL_GET_MIXER: {
4880 		struct hdsp_mixer __user *mixer = (struct hdsp_mixer __user *)argp;
4881 		if (copy_to_user(mixer->matrix, hdsp->mixer_matrix, sizeof(unsigned short)*HDSP_MATRIX_MIXER_SIZE))
4882 			return -EFAULT;
4883 		break;
4884 	}
4885 	default:
4886 		return -EINVAL;
4887 	}
4888 	return 0;
4889 }
4890 
4891 static const struct snd_pcm_ops snd_hdsp_playback_ops = {
4892 	.open =		snd_hdsp_playback_open,
4893 	.close =	snd_hdsp_playback_release,
4894 	.ioctl =	snd_hdsp_ioctl,
4895 	.hw_params =	snd_hdsp_hw_params,
4896 	.prepare =	snd_hdsp_prepare,
4897 	.trigger =	snd_hdsp_trigger,
4898 	.pointer =	snd_hdsp_hw_pointer,
4899 	.copy_user =	snd_hdsp_playback_copy,
4900 	.copy_kernel =	snd_hdsp_playback_copy_kernel,
4901 	.fill_silence =	snd_hdsp_hw_silence,
4902 };
4903 
4904 static const struct snd_pcm_ops snd_hdsp_capture_ops = {
4905 	.open =		snd_hdsp_capture_open,
4906 	.close =	snd_hdsp_capture_release,
4907 	.ioctl =	snd_hdsp_ioctl,
4908 	.hw_params =	snd_hdsp_hw_params,
4909 	.prepare =	snd_hdsp_prepare,
4910 	.trigger =	snd_hdsp_trigger,
4911 	.pointer =	snd_hdsp_hw_pointer,
4912 	.copy_user =	snd_hdsp_capture_copy,
4913 	.copy_kernel =	snd_hdsp_capture_copy_kernel,
4914 };
4915 
4916 static int snd_hdsp_create_hwdep(struct snd_card *card, struct hdsp *hdsp)
4917 {
4918 	struct snd_hwdep *hw;
4919 	int err;
4920 
4921 	if ((err = snd_hwdep_new(card, "HDSP hwdep", 0, &hw)) < 0)
4922 		return err;
4923 
4924 	hdsp->hwdep = hw;
4925 	hw->private_data = hdsp;
4926 	strcpy(hw->name, "HDSP hwdep interface");
4927 
4928 	hw->ops.ioctl = snd_hdsp_hwdep_ioctl;
4929 	hw->ops.ioctl_compat = snd_hdsp_hwdep_ioctl;
4930 
4931 	return 0;
4932 }
4933 
4934 static int snd_hdsp_create_pcm(struct snd_card *card, struct hdsp *hdsp)
4935 {
4936 	struct snd_pcm *pcm;
4937 	int err;
4938 
4939 	if ((err = snd_pcm_new(card, hdsp->card_name, 0, 1, 1, &pcm)) < 0)
4940 		return err;
4941 
4942 	hdsp->pcm = pcm;
4943 	pcm->private_data = hdsp;
4944 	strcpy(pcm->name, hdsp->card_name);
4945 
4946 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_hdsp_playback_ops);
4947 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_hdsp_capture_ops);
4948 
4949 	pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
4950 
4951 	return 0;
4952 }
4953 
4954 static void snd_hdsp_9652_enable_mixer (struct hdsp *hdsp)
4955 {
4956         hdsp->control2_register |= HDSP_9652_ENABLE_MIXER;
4957 	hdsp_write (hdsp, HDSP_control2Reg, hdsp->control2_register);
4958 }
4959 
4960 static int snd_hdsp_enable_io (struct hdsp *hdsp)
4961 {
4962 	int i;
4963 
4964 	if (hdsp_fifo_wait (hdsp, 0, 100)) {
4965 		dev_err(hdsp->card->dev,
4966 			"enable_io fifo_wait failed\n");
4967 		return -EIO;
4968 	}
4969 
4970 	for (i = 0; i < hdsp->max_channels; ++i) {
4971 		hdsp_write (hdsp, HDSP_inputEnable + (4 * i), 1);
4972 		hdsp_write (hdsp, HDSP_outputEnable + (4 * i), 1);
4973 	}
4974 
4975 	return 0;
4976 }
4977 
4978 static void snd_hdsp_initialize_channels(struct hdsp *hdsp)
4979 {
4980 	int status, aebi_channels, aebo_channels;
4981 
4982 	switch (hdsp->io_type) {
4983 	case Digiface:
4984 		hdsp->card_name = "RME Hammerfall DSP + Digiface";
4985 		hdsp->ss_in_channels = hdsp->ss_out_channels = DIGIFACE_SS_CHANNELS;
4986 		hdsp->ds_in_channels = hdsp->ds_out_channels = DIGIFACE_DS_CHANNELS;
4987 		break;
4988 
4989 	case H9652:
4990 		hdsp->card_name = "RME Hammerfall HDSP 9652";
4991 		hdsp->ss_in_channels = hdsp->ss_out_channels = H9652_SS_CHANNELS;
4992 		hdsp->ds_in_channels = hdsp->ds_out_channels = H9652_DS_CHANNELS;
4993 		break;
4994 
4995 	case H9632:
4996 		status = hdsp_read(hdsp, HDSP_statusRegister);
4997 		/* HDSP_AEBx bits are low when AEB are connected */
4998 		aebi_channels = (status & HDSP_AEBI) ? 0 : 4;
4999 		aebo_channels = (status & HDSP_AEBO) ? 0 : 4;
5000 		hdsp->card_name = "RME Hammerfall HDSP 9632";
5001 		hdsp->ss_in_channels = H9632_SS_CHANNELS+aebi_channels;
5002 		hdsp->ds_in_channels = H9632_DS_CHANNELS+aebi_channels;
5003 		hdsp->qs_in_channels = H9632_QS_CHANNELS+aebi_channels;
5004 		hdsp->ss_out_channels = H9632_SS_CHANNELS+aebo_channels;
5005 		hdsp->ds_out_channels = H9632_DS_CHANNELS+aebo_channels;
5006 		hdsp->qs_out_channels = H9632_QS_CHANNELS+aebo_channels;
5007 		break;
5008 
5009 	case Multiface:
5010 		hdsp->card_name = "RME Hammerfall DSP + Multiface";
5011 		hdsp->ss_in_channels = hdsp->ss_out_channels = MULTIFACE_SS_CHANNELS;
5012 		hdsp->ds_in_channels = hdsp->ds_out_channels = MULTIFACE_DS_CHANNELS;
5013 		break;
5014 
5015 	case RPM:
5016 		hdsp->card_name = "RME Hammerfall DSP + RPM";
5017 		hdsp->ss_in_channels = RPM_CHANNELS-1;
5018 		hdsp->ss_out_channels = RPM_CHANNELS;
5019 		hdsp->ds_in_channels = RPM_CHANNELS-1;
5020 		hdsp->ds_out_channels = RPM_CHANNELS;
5021 		break;
5022 
5023 	default:
5024  		/* should never get here */
5025 		break;
5026 	}
5027 }
5028 
5029 static void snd_hdsp_initialize_midi_flush (struct hdsp *hdsp)
5030 {
5031 	snd_hdsp_flush_midi_input (hdsp, 0);
5032 	snd_hdsp_flush_midi_input (hdsp, 1);
5033 }
5034 
5035 static int snd_hdsp_create_alsa_devices(struct snd_card *card, struct hdsp *hdsp)
5036 {
5037 	int err;
5038 
5039 	if ((err = snd_hdsp_create_pcm(card, hdsp)) < 0) {
5040 		dev_err(card->dev,
5041 			"Error creating pcm interface\n");
5042 		return err;
5043 	}
5044 
5045 
5046 	if ((err = snd_hdsp_create_midi(card, hdsp, 0)) < 0) {
5047 		dev_err(card->dev,
5048 			"Error creating first midi interface\n");
5049 		return err;
5050 	}
5051 
5052 	if (hdsp->io_type == Digiface || hdsp->io_type == H9652) {
5053 		if ((err = snd_hdsp_create_midi(card, hdsp, 1)) < 0) {
5054 			dev_err(card->dev,
5055 				"Error creating second midi interface\n");
5056 			return err;
5057 		}
5058 	}
5059 
5060 	if ((err = snd_hdsp_create_controls(card, hdsp)) < 0) {
5061 		dev_err(card->dev,
5062 			"Error creating ctl interface\n");
5063 		return err;
5064 	}
5065 
5066 	snd_hdsp_proc_init(hdsp);
5067 
5068 	hdsp->system_sample_rate = -1;
5069 	hdsp->playback_pid = -1;
5070 	hdsp->capture_pid = -1;
5071 	hdsp->capture_substream = NULL;
5072 	hdsp->playback_substream = NULL;
5073 
5074 	if ((err = snd_hdsp_set_defaults(hdsp)) < 0) {
5075 		dev_err(card->dev,
5076 			"Error setting default values\n");
5077 		return err;
5078 	}
5079 
5080 	if (!(hdsp->state & HDSP_InitializationComplete)) {
5081 		strcpy(card->shortname, "Hammerfall DSP");
5082 		sprintf(card->longname, "%s at 0x%lx, irq %d", hdsp->card_name,
5083 			hdsp->port, hdsp->irq);
5084 
5085 		if ((err = snd_card_register(card)) < 0) {
5086 			dev_err(card->dev,
5087 				"error registering card\n");
5088 			return err;
5089 		}
5090 		hdsp->state |= HDSP_InitializationComplete;
5091 	}
5092 
5093 	return 0;
5094 }
5095 
5096 /* load firmware via hotplug fw loader */
5097 static int hdsp_request_fw_loader(struct hdsp *hdsp)
5098 {
5099 	const char *fwfile;
5100 	const struct firmware *fw;
5101 	int err;
5102 
5103 	if (hdsp->io_type == H9652 || hdsp->io_type == H9632)
5104 		return 0;
5105 	if (hdsp->io_type == Undefined) {
5106 		if ((err = hdsp_get_iobox_version(hdsp)) < 0)
5107 			return err;
5108 		if (hdsp->io_type == H9652 || hdsp->io_type == H9632)
5109 			return 0;
5110 	}
5111 
5112 	/* caution: max length of firmware filename is 30! */
5113 	switch (hdsp->io_type) {
5114 	case RPM:
5115 		fwfile = "rpm_firmware.bin";
5116 		break;
5117 	case Multiface:
5118 		if (hdsp->firmware_rev == 0xa)
5119 			fwfile = "multiface_firmware.bin";
5120 		else
5121 			fwfile = "multiface_firmware_rev11.bin";
5122 		break;
5123 	case Digiface:
5124 		if (hdsp->firmware_rev == 0xa)
5125 			fwfile = "digiface_firmware.bin";
5126 		else
5127 			fwfile = "digiface_firmware_rev11.bin";
5128 		break;
5129 	default:
5130 		dev_err(hdsp->card->dev,
5131 			"invalid io_type %d\n", hdsp->io_type);
5132 		return -EINVAL;
5133 	}
5134 
5135 	if (request_firmware(&fw, fwfile, &hdsp->pci->dev)) {
5136 		dev_err(hdsp->card->dev,
5137 			"cannot load firmware %s\n", fwfile);
5138 		return -ENOENT;
5139 	}
5140 	if (fw->size < HDSP_FIRMWARE_SIZE) {
5141 		dev_err(hdsp->card->dev,
5142 			"too short firmware size %d (expected %d)\n",
5143 			   (int)fw->size, HDSP_FIRMWARE_SIZE);
5144 		release_firmware(fw);
5145 		return -EINVAL;
5146 	}
5147 
5148 	hdsp->firmware = fw;
5149 
5150 	hdsp->state |= HDSP_FirmwareCached;
5151 
5152 	if ((err = snd_hdsp_load_firmware_from_cache(hdsp)) < 0)
5153 		return err;
5154 
5155 	if (!(hdsp->state & HDSP_InitializationComplete)) {
5156 		if ((err = snd_hdsp_enable_io(hdsp)) < 0)
5157 			return err;
5158 
5159 		if ((err = snd_hdsp_create_hwdep(hdsp->card, hdsp)) < 0) {
5160 			dev_err(hdsp->card->dev,
5161 				"error creating hwdep device\n");
5162 			return err;
5163 		}
5164 		snd_hdsp_initialize_channels(hdsp);
5165 		snd_hdsp_initialize_midi_flush(hdsp);
5166 		if ((err = snd_hdsp_create_alsa_devices(hdsp->card, hdsp)) < 0) {
5167 			dev_err(hdsp->card->dev,
5168 				"error creating alsa devices\n");
5169 			return err;
5170 		}
5171 	}
5172 	return 0;
5173 }
5174 
5175 static int snd_hdsp_create(struct snd_card *card,
5176 			   struct hdsp *hdsp)
5177 {
5178 	struct pci_dev *pci = hdsp->pci;
5179 	int err;
5180 	int is_9652 = 0;
5181 	int is_9632 = 0;
5182 
5183 	hdsp->irq = -1;
5184 	hdsp->state = 0;
5185 	hdsp->midi[0].rmidi = NULL;
5186 	hdsp->midi[1].rmidi = NULL;
5187 	hdsp->midi[0].input = NULL;
5188 	hdsp->midi[1].input = NULL;
5189 	hdsp->midi[0].output = NULL;
5190 	hdsp->midi[1].output = NULL;
5191 	hdsp->midi[0].pending = 0;
5192 	hdsp->midi[1].pending = 0;
5193 	spin_lock_init(&hdsp->midi[0].lock);
5194 	spin_lock_init(&hdsp->midi[1].lock);
5195 	hdsp->iobase = NULL;
5196 	hdsp->control_register = 0;
5197 	hdsp->control2_register = 0;
5198 	hdsp->io_type = Undefined;
5199 	hdsp->max_channels = 26;
5200 
5201 	hdsp->card = card;
5202 
5203 	spin_lock_init(&hdsp->lock);
5204 
5205 	tasklet_init(&hdsp->midi_tasklet, hdsp_midi_tasklet, (unsigned long)hdsp);
5206 
5207 	pci_read_config_word(hdsp->pci, PCI_CLASS_REVISION, &hdsp->firmware_rev);
5208 	hdsp->firmware_rev &= 0xff;
5209 
5210 	/* From Martin Bjoernsen :
5211 	    "It is important that the card's latency timer register in
5212 	    the PCI configuration space is set to a value much larger
5213 	    than 0 by the computer's BIOS or the driver.
5214 	    The windows driver always sets this 8 bit register [...]
5215 	    to its maximum 255 to avoid problems with some computers."
5216 	*/
5217 	pci_write_config_byte(hdsp->pci, PCI_LATENCY_TIMER, 0xFF);
5218 
5219 	strcpy(card->driver, "H-DSP");
5220 	strcpy(card->mixername, "Xilinx FPGA");
5221 
5222 	if (hdsp->firmware_rev < 0xa)
5223 		return -ENODEV;
5224 	else if (hdsp->firmware_rev < 0x64)
5225 		hdsp->card_name = "RME Hammerfall DSP";
5226 	else if (hdsp->firmware_rev < 0x96) {
5227 		hdsp->card_name = "RME HDSP 9652";
5228 		is_9652 = 1;
5229 	} else {
5230 		hdsp->card_name = "RME HDSP 9632";
5231 		hdsp->max_channels = 16;
5232 		is_9632 = 1;
5233 	}
5234 
5235 	if ((err = pci_enable_device(pci)) < 0)
5236 		return err;
5237 
5238 	pci_set_master(hdsp->pci);
5239 
5240 	if ((err = pci_request_regions(pci, "hdsp")) < 0)
5241 		return err;
5242 	hdsp->port = pci_resource_start(pci, 0);
5243 	if ((hdsp->iobase = ioremap_nocache(hdsp->port, HDSP_IO_EXTENT)) == NULL) {
5244 		dev_err(hdsp->card->dev, "unable to remap region 0x%lx-0x%lx\n",
5245 			hdsp->port, hdsp->port + HDSP_IO_EXTENT - 1);
5246 		return -EBUSY;
5247 	}
5248 
5249 	if (request_irq(pci->irq, snd_hdsp_interrupt, IRQF_SHARED,
5250 			KBUILD_MODNAME, hdsp)) {
5251 		dev_err(hdsp->card->dev, "unable to use IRQ %d\n", pci->irq);
5252 		return -EBUSY;
5253 	}
5254 
5255 	hdsp->irq = pci->irq;
5256 	hdsp->precise_ptr = 0;
5257 	hdsp->use_midi_tasklet = 1;
5258 	hdsp->dds_value = 0;
5259 
5260 	if ((err = snd_hdsp_initialize_memory(hdsp)) < 0)
5261 		return err;
5262 
5263 	if (!is_9652 && !is_9632) {
5264 		/* we wait a maximum of 10 seconds to let freshly
5265 		 * inserted cardbus cards do their hardware init */
5266 		err = hdsp_wait_for_iobox(hdsp, 1000, 10);
5267 
5268 		if (err < 0)
5269 			return err;
5270 
5271 		if ((hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DllError) != 0) {
5272 			if ((err = hdsp_request_fw_loader(hdsp)) < 0)
5273 				/* we don't fail as this can happen
5274 				   if userspace is not ready for
5275 				   firmware upload
5276 				*/
5277 				dev_err(hdsp->card->dev,
5278 					"couldn't get firmware from userspace. try using hdsploader\n");
5279 			else
5280 				/* init is complete, we return */
5281 				return 0;
5282 			/* we defer initialization */
5283 			dev_info(hdsp->card->dev,
5284 				 "card initialization pending : waiting for firmware\n");
5285 			if ((err = snd_hdsp_create_hwdep(card, hdsp)) < 0)
5286 				return err;
5287 			return 0;
5288 		} else {
5289 			dev_info(hdsp->card->dev,
5290 				 "Firmware already present, initializing card.\n");
5291 			if (hdsp_read(hdsp, HDSP_status2Register) & HDSP_version2)
5292 				hdsp->io_type = RPM;
5293 			else if (hdsp_read(hdsp, HDSP_status2Register) & HDSP_version1)
5294 				hdsp->io_type = Multiface;
5295 			else
5296 				hdsp->io_type = Digiface;
5297 		}
5298 	}
5299 
5300 	if ((err = snd_hdsp_enable_io(hdsp)) != 0)
5301 		return err;
5302 
5303 	if (is_9652)
5304 	        hdsp->io_type = H9652;
5305 
5306 	if (is_9632)
5307 		hdsp->io_type = H9632;
5308 
5309 	if ((err = snd_hdsp_create_hwdep(card, hdsp)) < 0)
5310 		return err;
5311 
5312 	snd_hdsp_initialize_channels(hdsp);
5313 	snd_hdsp_initialize_midi_flush(hdsp);
5314 
5315 	hdsp->state |= HDSP_FirmwareLoaded;
5316 
5317 	if ((err = snd_hdsp_create_alsa_devices(card, hdsp)) < 0)
5318 		return err;
5319 
5320 	return 0;
5321 }
5322 
5323 static int snd_hdsp_free(struct hdsp *hdsp)
5324 {
5325 	if (hdsp->port) {
5326 		/* stop the audio, and cancel all interrupts */
5327 		tasklet_kill(&hdsp->midi_tasklet);
5328 		hdsp->control_register &= ~(HDSP_Start|HDSP_AudioInterruptEnable|HDSP_Midi0InterruptEnable|HDSP_Midi1InterruptEnable);
5329 		hdsp_write (hdsp, HDSP_controlRegister, hdsp->control_register);
5330 	}
5331 
5332 	if (hdsp->irq >= 0)
5333 		free_irq(hdsp->irq, (void *)hdsp);
5334 
5335 	snd_hdsp_free_buffers(hdsp);
5336 
5337 	release_firmware(hdsp->firmware);
5338 	vfree(hdsp->fw_uploaded);
5339 	iounmap(hdsp->iobase);
5340 
5341 	if (hdsp->port)
5342 		pci_release_regions(hdsp->pci);
5343 
5344 	pci_disable_device(hdsp->pci);
5345 	return 0;
5346 }
5347 
5348 static void snd_hdsp_card_free(struct snd_card *card)
5349 {
5350 	struct hdsp *hdsp = card->private_data;
5351 
5352 	if (hdsp)
5353 		snd_hdsp_free(hdsp);
5354 }
5355 
5356 static int snd_hdsp_probe(struct pci_dev *pci,
5357 			  const struct pci_device_id *pci_id)
5358 {
5359 	static int dev;
5360 	struct hdsp *hdsp;
5361 	struct snd_card *card;
5362 	int err;
5363 
5364 	if (dev >= SNDRV_CARDS)
5365 		return -ENODEV;
5366 	if (!enable[dev]) {
5367 		dev++;
5368 		return -ENOENT;
5369 	}
5370 
5371 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
5372 			   sizeof(struct hdsp), &card);
5373 	if (err < 0)
5374 		return err;
5375 
5376 	hdsp = card->private_data;
5377 	card->private_free = snd_hdsp_card_free;
5378 	hdsp->dev = dev;
5379 	hdsp->pci = pci;
5380 	err = snd_hdsp_create(card, hdsp);
5381 	if (err)
5382 		goto free_card;
5383 
5384 	strcpy(card->shortname, "Hammerfall DSP");
5385 	sprintf(card->longname, "%s at 0x%lx, irq %d", hdsp->card_name,
5386 		hdsp->port, hdsp->irq);
5387 	err = snd_card_register(card);
5388 	if (err) {
5389 free_card:
5390 		snd_card_free(card);
5391 		return err;
5392 	}
5393 	pci_set_drvdata(pci, card);
5394 	dev++;
5395 	return 0;
5396 }
5397 
5398 static void snd_hdsp_remove(struct pci_dev *pci)
5399 {
5400 	snd_card_free(pci_get_drvdata(pci));
5401 }
5402 
5403 static struct pci_driver hdsp_driver = {
5404 	.name =     KBUILD_MODNAME,
5405 	.id_table = snd_hdsp_ids,
5406 	.probe =    snd_hdsp_probe,
5407 	.remove = snd_hdsp_remove,
5408 };
5409 
5410 module_pci_driver(hdsp_driver);
5411