xref: /openbmc/linux/sound/pci/rme9652/hdsp.c (revision 6ee73861)
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/slab.h>
28 #include <linux/pci.h>
29 #include <linux/firmware.h>
30 #include <linux/moduleparam.h>
31 #include <linux/math64.h>
32 
33 #include <sound/core.h>
34 #include <sound/control.h>
35 #include <sound/pcm.h>
36 #include <sound/info.h>
37 #include <sound/asoundef.h>
38 #include <sound/rawmidi.h>
39 #include <sound/hwdep.h>
40 #include <sound/initval.h>
41 #include <sound/hdsp.h>
42 
43 #include <asm/byteorder.h>
44 #include <asm/current.h>
45 #include <asm/io.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 int 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 #ifdef HDSP_FW_LOADER
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 #endif
69 
70 #define HDSP_MAX_CHANNELS        26
71 #define HDSP_MAX_DS_CHANNELS     14
72 #define HDSP_MAX_QS_CHANNELS     8
73 #define DIGIFACE_SS_CHANNELS     26
74 #define DIGIFACE_DS_CHANNELS     14
75 #define MULTIFACE_SS_CHANNELS    18
76 #define MULTIFACE_DS_CHANNELS    14
77 #define H9652_SS_CHANNELS        26
78 #define H9652_DS_CHANNELS        14
79 /* This does not include possible Analog Extension Boards
80    AEBs are detected at card initialization
81 */
82 #define H9632_SS_CHANNELS	 12
83 #define H9632_DS_CHANNELS	 8
84 #define H9632_QS_CHANNELS	 4
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
154 #define HDSP_BIGENDIAN_MODE     0x200
155 #define HDSP_RD_MULTIPLE        0x400
156 #define HDSP_9652_ENABLE_MIXER  0x800
157 #define HDSP_TDO                0x10000000
158 
159 #define HDSP_S_PROGRAM     	(HDSP_PROGRAM|HDSP_CONFIG_MODE_0)
160 #define HDSP_S_LOAD		(HDSP_PROGRAM|HDSP_CONFIG_MODE_1)
161 
162 /* Control Register bits */
163 
164 #define HDSP_Start                (1<<0)  /* start engine */
165 #define HDSP_Latency0             (1<<1)  /* buffer size = 2^n where n is defined by Latency{2,1,0} */
166 #define HDSP_Latency1             (1<<2)  /* [ see above ] */
167 #define HDSP_Latency2             (1<<3)  /* [ see above ] */
168 #define HDSP_ClockModeMaster      (1<<4)  /* 1=Master, 0=Slave/Autosync */
169 #define HDSP_AudioInterruptEnable (1<<5)  /* what do you think ? */
170 #define HDSP_Frequency0           (1<<6)  /* 0=44.1kHz/88.2kHz/176.4kHz 1=48kHz/96kHz/192kHz */
171 #define HDSP_Frequency1           (1<<7)  /* 0=32kHz/64kHz/128kHz */
172 #define HDSP_DoubleSpeed          (1<<8)  /* 0=normal speed, 1=double speed */
173 #define HDSP_SPDIFProfessional    (1<<9)  /* 0=consumer, 1=professional */
174 #define HDSP_SPDIFEmphasis        (1<<10) /* 0=none, 1=on */
175 #define HDSP_SPDIFNonAudio        (1<<11) /* 0=off, 1=on */
176 #define HDSP_SPDIFOpticalOut      (1<<12) /* 1=use 1st ADAT connector for SPDIF, 0=do not */
177 #define HDSP_SyncRef2             (1<<13)
178 #define HDSP_SPDIFInputSelect0    (1<<14)
179 #define HDSP_SPDIFInputSelect1    (1<<15)
180 #define HDSP_SyncRef0             (1<<16)
181 #define HDSP_SyncRef1             (1<<17)
182 #define HDSP_AnalogExtensionBoard (1<<18) /* For H9632 cards */
183 #define HDSP_XLRBreakoutCable     (1<<20) /* For H9632 cards */
184 #define HDSP_Midi0InterruptEnable (1<<22)
185 #define HDSP_Midi1InterruptEnable (1<<23)
186 #define HDSP_LineOut              (1<<24)
187 #define HDSP_ADGain0		  (1<<25) /* From here : H9632 specific */
188 #define HDSP_ADGain1		  (1<<26)
189 #define HDSP_DAGain0		  (1<<27)
190 #define HDSP_DAGain1		  (1<<28)
191 #define HDSP_PhoneGain0		  (1<<29)
192 #define HDSP_PhoneGain1		  (1<<30)
193 #define HDSP_QuadSpeed	  	  (1<<31)
194 
195 #define HDSP_ADGainMask       (HDSP_ADGain0|HDSP_ADGain1)
196 #define HDSP_ADGainMinus10dBV  HDSP_ADGainMask
197 #define HDSP_ADGainPlus4dBu   (HDSP_ADGain0)
198 #define HDSP_ADGainLowGain     0
199 
200 #define HDSP_DAGainMask         (HDSP_DAGain0|HDSP_DAGain1)
201 #define HDSP_DAGainHighGain      HDSP_DAGainMask
202 #define HDSP_DAGainPlus4dBu     (HDSP_DAGain0)
203 #define HDSP_DAGainMinus10dBV    0
204 
205 #define HDSP_PhoneGainMask      (HDSP_PhoneGain0|HDSP_PhoneGain1)
206 #define HDSP_PhoneGain0dB        HDSP_PhoneGainMask
207 #define HDSP_PhoneGainMinus6dB  (HDSP_PhoneGain0)
208 #define HDSP_PhoneGainMinus12dB  0
209 
210 #define HDSP_LatencyMask    (HDSP_Latency0|HDSP_Latency1|HDSP_Latency2)
211 #define HDSP_FrequencyMask  (HDSP_Frequency0|HDSP_Frequency1|HDSP_DoubleSpeed|HDSP_QuadSpeed)
212 
213 #define HDSP_SPDIFInputMask    (HDSP_SPDIFInputSelect0|HDSP_SPDIFInputSelect1)
214 #define HDSP_SPDIFInputADAT1    0
215 #define HDSP_SPDIFInputCoaxial (HDSP_SPDIFInputSelect0)
216 #define HDSP_SPDIFInputCdrom   (HDSP_SPDIFInputSelect1)
217 #define HDSP_SPDIFInputAES     (HDSP_SPDIFInputSelect0|HDSP_SPDIFInputSelect1)
218 
219 #define HDSP_SyncRefMask        (HDSP_SyncRef0|HDSP_SyncRef1|HDSP_SyncRef2)
220 #define HDSP_SyncRef_ADAT1       0
221 #define HDSP_SyncRef_ADAT2      (HDSP_SyncRef0)
222 #define HDSP_SyncRef_ADAT3      (HDSP_SyncRef1)
223 #define HDSP_SyncRef_SPDIF      (HDSP_SyncRef0|HDSP_SyncRef1)
224 #define HDSP_SyncRef_WORD       (HDSP_SyncRef2)
225 #define HDSP_SyncRef_ADAT_SYNC  (HDSP_SyncRef0|HDSP_SyncRef2)
226 
227 /* Sample Clock Sources */
228 
229 #define HDSP_CLOCK_SOURCE_AUTOSYNC           0
230 #define HDSP_CLOCK_SOURCE_INTERNAL_32KHZ     1
231 #define HDSP_CLOCK_SOURCE_INTERNAL_44_1KHZ   2
232 #define HDSP_CLOCK_SOURCE_INTERNAL_48KHZ     3
233 #define HDSP_CLOCK_SOURCE_INTERNAL_64KHZ     4
234 #define HDSP_CLOCK_SOURCE_INTERNAL_88_2KHZ   5
235 #define HDSP_CLOCK_SOURCE_INTERNAL_96KHZ     6
236 #define HDSP_CLOCK_SOURCE_INTERNAL_128KHZ    7
237 #define HDSP_CLOCK_SOURCE_INTERNAL_176_4KHZ  8
238 #define HDSP_CLOCK_SOURCE_INTERNAL_192KHZ    9
239 
240 /* Preferred sync reference choices - used by "pref_sync_ref" control switch */
241 
242 #define HDSP_SYNC_FROM_WORD      0
243 #define HDSP_SYNC_FROM_SPDIF     1
244 #define HDSP_SYNC_FROM_ADAT1     2
245 #define HDSP_SYNC_FROM_ADAT_SYNC 3
246 #define HDSP_SYNC_FROM_ADAT2     4
247 #define HDSP_SYNC_FROM_ADAT3     5
248 
249 /* SyncCheck status */
250 
251 #define HDSP_SYNC_CHECK_NO_LOCK 0
252 #define HDSP_SYNC_CHECK_LOCK    1
253 #define HDSP_SYNC_CHECK_SYNC	2
254 
255 /* AutoSync references - used by "autosync_ref" control switch */
256 
257 #define HDSP_AUTOSYNC_FROM_WORD      0
258 #define HDSP_AUTOSYNC_FROM_ADAT_SYNC 1
259 #define HDSP_AUTOSYNC_FROM_SPDIF     2
260 #define HDSP_AUTOSYNC_FROM_NONE	     3
261 #define HDSP_AUTOSYNC_FROM_ADAT1     4
262 #define HDSP_AUTOSYNC_FROM_ADAT2     5
263 #define HDSP_AUTOSYNC_FROM_ADAT3     6
264 
265 /* Possible sources of S/PDIF input */
266 
267 #define HDSP_SPDIFIN_OPTICAL  0	/* optical  (ADAT1) */
268 #define HDSP_SPDIFIN_COAXIAL  1	/* coaxial (RCA) */
269 #define HDSP_SPDIFIN_INTERNAL 2	/* internal (CDROM) */
270 #define HDSP_SPDIFIN_AES      3 /* xlr for H9632 (AES)*/
271 
272 #define HDSP_Frequency32KHz    HDSP_Frequency0
273 #define HDSP_Frequency44_1KHz  HDSP_Frequency1
274 #define HDSP_Frequency48KHz    (HDSP_Frequency1|HDSP_Frequency0)
275 #define HDSP_Frequency64KHz    (HDSP_DoubleSpeed|HDSP_Frequency0)
276 #define HDSP_Frequency88_2KHz  (HDSP_DoubleSpeed|HDSP_Frequency1)
277 #define HDSP_Frequency96KHz    (HDSP_DoubleSpeed|HDSP_Frequency1|HDSP_Frequency0)
278 /* For H9632 cards */
279 #define HDSP_Frequency128KHz   (HDSP_QuadSpeed|HDSP_DoubleSpeed|HDSP_Frequency0)
280 #define HDSP_Frequency176_4KHz (HDSP_QuadSpeed|HDSP_DoubleSpeed|HDSP_Frequency1)
281 #define HDSP_Frequency192KHz   (HDSP_QuadSpeed|HDSP_DoubleSpeed|HDSP_Frequency1|HDSP_Frequency0)
282 /* RME says n = 104857600000000, but in the windows MADI driver, I see:
283 	return 104857600000000 / rate; // 100 MHz
284 	return 110100480000000 / rate; // 105 MHz
285 */
286 #define DDS_NUMERATOR 104857600000000ULL;  /*  =  2^20 * 10^8 */
287 
288 #define hdsp_encode_latency(x)       (((x)<<1) & HDSP_LatencyMask)
289 #define hdsp_decode_latency(x)       (((x) & HDSP_LatencyMask)>>1)
290 
291 #define hdsp_encode_spdif_in(x) (((x)&0x3)<<14)
292 #define hdsp_decode_spdif_in(x) (((x)>>14)&0x3)
293 
294 /* Status Register bits */
295 
296 #define HDSP_audioIRQPending    (1<<0)
297 #define HDSP_Lock2              (1<<1)     /* this is for Digiface and H9652 */
298 #define HDSP_spdifFrequency3	HDSP_Lock2 /* this is for H9632 only */
299 #define HDSP_Lock1              (1<<2)
300 #define HDSP_Lock0              (1<<3)
301 #define HDSP_SPDIFSync          (1<<4)
302 #define HDSP_TimecodeLock       (1<<5)
303 #define HDSP_BufferPositionMask 0x000FFC0 /* Bit 6..15 : h/w buffer pointer */
304 #define HDSP_Sync2              (1<<16)
305 #define HDSP_Sync1              (1<<17)
306 #define HDSP_Sync0              (1<<18)
307 #define HDSP_DoubleSpeedStatus  (1<<19)
308 #define HDSP_ConfigError        (1<<20)
309 #define HDSP_DllError           (1<<21)
310 #define HDSP_spdifFrequency0    (1<<22)
311 #define HDSP_spdifFrequency1    (1<<23)
312 #define HDSP_spdifFrequency2    (1<<24)
313 #define HDSP_SPDIFErrorFlag     (1<<25)
314 #define HDSP_BufferID           (1<<26)
315 #define HDSP_TimecodeSync       (1<<27)
316 #define HDSP_AEBO          	(1<<28) /* H9632 specific Analog Extension Boards */
317 #define HDSP_AEBI		(1<<29) /* 0 = present, 1 = absent */
318 #define HDSP_midi0IRQPending    (1<<30)
319 #define HDSP_midi1IRQPending    (1<<31)
320 
321 #define HDSP_spdifFrequencyMask    (HDSP_spdifFrequency0|HDSP_spdifFrequency1|HDSP_spdifFrequency2)
322 #define HDSP_spdifFrequencyMask_9632 (HDSP_spdifFrequency0|\
323 				      HDSP_spdifFrequency1|\
324 				      HDSP_spdifFrequency2|\
325 				      HDSP_spdifFrequency3)
326 
327 #define HDSP_spdifFrequency32KHz   (HDSP_spdifFrequency0)
328 #define HDSP_spdifFrequency44_1KHz (HDSP_spdifFrequency1)
329 #define HDSP_spdifFrequency48KHz   (HDSP_spdifFrequency0|HDSP_spdifFrequency1)
330 
331 #define HDSP_spdifFrequency64KHz   (HDSP_spdifFrequency2)
332 #define HDSP_spdifFrequency88_2KHz (HDSP_spdifFrequency0|HDSP_spdifFrequency2)
333 #define HDSP_spdifFrequency96KHz   (HDSP_spdifFrequency2|HDSP_spdifFrequency1)
334 
335 /* This is for H9632 cards */
336 #define HDSP_spdifFrequency128KHz   (HDSP_spdifFrequency0|\
337 				     HDSP_spdifFrequency1|\
338 				     HDSP_spdifFrequency2)
339 #define HDSP_spdifFrequency176_4KHz HDSP_spdifFrequency3
340 #define HDSP_spdifFrequency192KHz   (HDSP_spdifFrequency3|HDSP_spdifFrequency0)
341 
342 /* Status2 Register bits */
343 
344 #define HDSP_version0     (1<<0)
345 #define HDSP_version1     (1<<1)
346 #define HDSP_version2     (1<<2)
347 #define HDSP_wc_lock      (1<<3)
348 #define HDSP_wc_sync      (1<<4)
349 #define HDSP_inp_freq0    (1<<5)
350 #define HDSP_inp_freq1    (1<<6)
351 #define HDSP_inp_freq2    (1<<7)
352 #define HDSP_SelSyncRef0  (1<<8)
353 #define HDSP_SelSyncRef1  (1<<9)
354 #define HDSP_SelSyncRef2  (1<<10)
355 
356 #define HDSP_wc_valid (HDSP_wc_lock|HDSP_wc_sync)
357 
358 #define HDSP_systemFrequencyMask (HDSP_inp_freq0|HDSP_inp_freq1|HDSP_inp_freq2)
359 #define HDSP_systemFrequency32   (HDSP_inp_freq0)
360 #define HDSP_systemFrequency44_1 (HDSP_inp_freq1)
361 #define HDSP_systemFrequency48   (HDSP_inp_freq0|HDSP_inp_freq1)
362 #define HDSP_systemFrequency64   (HDSP_inp_freq2)
363 #define HDSP_systemFrequency88_2 (HDSP_inp_freq0|HDSP_inp_freq2)
364 #define HDSP_systemFrequency96   (HDSP_inp_freq1|HDSP_inp_freq2)
365 /* FIXME : more values for 9632 cards ? */
366 
367 #define HDSP_SelSyncRefMask        (HDSP_SelSyncRef0|HDSP_SelSyncRef1|HDSP_SelSyncRef2)
368 #define HDSP_SelSyncRef_ADAT1      0
369 #define HDSP_SelSyncRef_ADAT2      (HDSP_SelSyncRef0)
370 #define HDSP_SelSyncRef_ADAT3      (HDSP_SelSyncRef1)
371 #define HDSP_SelSyncRef_SPDIF      (HDSP_SelSyncRef0|HDSP_SelSyncRef1)
372 #define HDSP_SelSyncRef_WORD       (HDSP_SelSyncRef2)
373 #define HDSP_SelSyncRef_ADAT_SYNC  (HDSP_SelSyncRef0|HDSP_SelSyncRef2)
374 
375 /* Card state flags */
376 
377 #define HDSP_InitializationComplete  (1<<0)
378 #define HDSP_FirmwareLoaded	     (1<<1)
379 #define HDSP_FirmwareCached	     (1<<2)
380 
381 /* FIFO wait times, defined in terms of 1/10ths of msecs */
382 
383 #define HDSP_LONG_WAIT	 5000
384 #define HDSP_SHORT_WAIT  30
385 
386 #define UNITY_GAIN                       32768
387 #define MINUS_INFINITY_GAIN              0
388 
389 /* the size of a substream (1 mono data stream) */
390 
391 #define HDSP_CHANNEL_BUFFER_SAMPLES  (16*1024)
392 #define HDSP_CHANNEL_BUFFER_BYTES    (4*HDSP_CHANNEL_BUFFER_SAMPLES)
393 
394 /* the size of the area we need to allocate for DMA transfers. the
395    size is the same regardless of the number of channels - the
396    Multiface still uses the same memory area.
397 
398    Note that we allocate 1 more channel than is apparently needed
399    because the h/w seems to write 1 byte beyond the end of the last
400    page. Sigh.
401 */
402 
403 #define HDSP_DMA_AREA_BYTES ((HDSP_MAX_CHANNELS+1) * HDSP_CHANNEL_BUFFER_BYTES)
404 #define HDSP_DMA_AREA_KILOBYTES (HDSP_DMA_AREA_BYTES/1024)
405 
406 /* use hotplug firmware loader? */
407 #if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE)
408 #if !defined(HDSP_USE_HWDEP_LOADER)
409 #define HDSP_FW_LOADER
410 #endif
411 #endif
412 
413 struct hdsp_9632_meters {
414     u32 input_peak[16];
415     u32 playback_peak[16];
416     u32 output_peak[16];
417     u32 xxx_peak[16];
418     u32 padding[64];
419     u32 input_rms_low[16];
420     u32 playback_rms_low[16];
421     u32 output_rms_low[16];
422     u32 xxx_rms_low[16];
423     u32 input_rms_high[16];
424     u32 playback_rms_high[16];
425     u32 output_rms_high[16];
426     u32 xxx_rms_high[16];
427 };
428 
429 struct hdsp_midi {
430     struct hdsp             *hdsp;
431     int                      id;
432     struct snd_rawmidi           *rmidi;
433     struct snd_rawmidi_substream *input;
434     struct snd_rawmidi_substream *output;
435     char                     istimer; /* timer in use */
436     struct timer_list	     timer;
437     spinlock_t               lock;
438     int			     pending;
439 };
440 
441 struct hdsp {
442 	spinlock_t            lock;
443 	struct snd_pcm_substream *capture_substream;
444 	struct snd_pcm_substream *playback_substream;
445         struct hdsp_midi      midi[2];
446 	struct tasklet_struct midi_tasklet;
447 	int		      use_midi_tasklet;
448 	int                   precise_ptr;
449 	u32                   control_register;	     /* cached value */
450 	u32                   control2_register;     /* cached value */
451 	u32                   creg_spdif;
452 	u32                   creg_spdif_stream;
453 	int                   clock_source_locked;
454 	char                 *card_name;	     /* digiface/multiface */
455 	enum HDSP_IO_Type     io_type;               /* ditto, but for code use */
456         unsigned short        firmware_rev;
457 	unsigned short	      state;		     /* stores state bits */
458 	u32		      firmware_cache[24413]; /* this helps recover from accidental iobox power failure */
459 	size_t                period_bytes; 	     /* guess what this is */
460 	unsigned char	      max_channels;
461 	unsigned char	      qs_in_channels;	     /* quad speed mode for H9632 */
462 	unsigned char         ds_in_channels;
463 	unsigned char         ss_in_channels;	    /* different for multiface/digiface */
464 	unsigned char	      qs_out_channels;
465 	unsigned char         ds_out_channels;
466 	unsigned char         ss_out_channels;
467 
468 	struct snd_dma_buffer capture_dma_buf;
469 	struct snd_dma_buffer playback_dma_buf;
470 	unsigned char        *capture_buffer;	    /* suitably aligned address */
471 	unsigned char        *playback_buffer;	    /* suitably aligned address */
472 
473 	pid_t                 capture_pid;
474 	pid_t                 playback_pid;
475 	int                   running;
476 	int                   system_sample_rate;
477 	char                 *channel_map;
478 	int                   dev;
479 	int                   irq;
480 	unsigned long         port;
481         void __iomem         *iobase;
482 	struct snd_card *card;
483 	struct snd_pcm *pcm;
484 	struct snd_hwdep          *hwdep;
485 	struct pci_dev       *pci;
486 	struct snd_kcontrol *spdif_ctl;
487         unsigned short        mixer_matrix[HDSP_MATRIX_MIXER_SIZE];
488 	unsigned int          dds_value; /* last value written to freq register */
489 };
490 
491 /* These tables map the ALSA channels 1..N to the channels that we
492    need to use in order to find the relevant channel buffer. RME
493    refer to this kind of mapping as between "the ADAT channel and
494    the DMA channel." We index it using the logical audio channel,
495    and the value is the DMA channel (i.e. channel buffer number)
496    where the data for that channel can be read/written from/to.
497 */
498 
499 static char channel_map_df_ss[HDSP_MAX_CHANNELS] = {
500 	0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
501 	18, 19, 20, 21, 22, 23, 24, 25
502 };
503 
504 static char channel_map_mf_ss[HDSP_MAX_CHANNELS] = { /* Multiface */
505 	/* Analog */
506 	0, 1, 2, 3, 4, 5, 6, 7,
507 	/* ADAT 2 */
508 	16, 17, 18, 19, 20, 21, 22, 23,
509 	/* SPDIF */
510 	24, 25,
511 	-1, -1, -1, -1, -1, -1, -1, -1
512 };
513 
514 static char channel_map_ds[HDSP_MAX_CHANNELS] = {
515 	/* ADAT channels are remapped */
516 	1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23,
517 	/* channels 12 and 13 are S/PDIF */
518 	24, 25,
519 	/* others don't exist */
520 	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
521 };
522 
523 static char channel_map_H9632_ss[HDSP_MAX_CHANNELS] = {
524 	/* ADAT channels */
525 	0, 1, 2, 3, 4, 5, 6, 7,
526 	/* SPDIF */
527 	8, 9,
528 	/* Analog */
529 	10, 11,
530 	/* AO4S-192 and AI4S-192 extension boards */
531 	12, 13, 14, 15,
532 	/* others don't exist */
533 	-1, -1, -1, -1, -1, -1, -1, -1,
534 	-1, -1
535 };
536 
537 static char channel_map_H9632_ds[HDSP_MAX_CHANNELS] = {
538 	/* ADAT */
539 	1, 3, 5, 7,
540 	/* SPDIF */
541 	8, 9,
542 	/* Analog */
543 	10, 11,
544 	/* AO4S-192 and AI4S-192 extension boards */
545 	12, 13, 14, 15,
546 	/* others don't exist */
547 	-1, -1, -1, -1, -1, -1, -1, -1,
548 	-1, -1, -1, -1, -1, -1
549 };
550 
551 static char channel_map_H9632_qs[HDSP_MAX_CHANNELS] = {
552 	/* ADAT is disabled in this mode */
553 	/* SPDIF */
554 	8, 9,
555 	/* Analog */
556 	10, 11,
557 	/* AO4S-192 and AI4S-192 extension boards */
558 	12, 13, 14, 15,
559 	/* others don't exist */
560 	-1, -1, -1, -1, -1, -1, -1, -1,
561 	-1, -1, -1, -1, -1, -1, -1, -1,
562 	-1, -1
563 };
564 
565 static int snd_hammerfall_get_buffer(struct pci_dev *pci, struct snd_dma_buffer *dmab, size_t size)
566 {
567 	dmab->dev.type = SNDRV_DMA_TYPE_DEV;
568 	dmab->dev.dev = snd_dma_pci_data(pci);
569 	if (snd_dma_get_reserved_buf(dmab, snd_dma_pci_buf_id(pci))) {
570 		if (dmab->bytes >= size)
571 			return 0;
572 	}
573 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
574 				size, dmab) < 0)
575 		return -ENOMEM;
576 	return 0;
577 }
578 
579 static void snd_hammerfall_free_buffer(struct snd_dma_buffer *dmab, struct pci_dev *pci)
580 {
581 	if (dmab->area) {
582 		dmab->dev.dev = NULL; /* make it anonymous */
583 		snd_dma_reserve_buf(dmab, snd_dma_pci_buf_id(pci));
584 	}
585 }
586 
587 
588 static struct pci_device_id snd_hdsp_ids[] = {
589 	{
590 		.vendor = PCI_VENDOR_ID_XILINX,
591 		.device = PCI_DEVICE_ID_XILINX_HAMMERFALL_DSP,
592 		.subvendor = PCI_ANY_ID,
593 		.subdevice = PCI_ANY_ID,
594 	}, /* RME Hammerfall-DSP */
595 	{ 0, },
596 };
597 
598 MODULE_DEVICE_TABLE(pci, snd_hdsp_ids);
599 
600 /* prototypes */
601 static int snd_hdsp_create_alsa_devices(struct snd_card *card, struct hdsp *hdsp);
602 static int snd_hdsp_create_pcm(struct snd_card *card, struct hdsp *hdsp);
603 static int snd_hdsp_enable_io (struct hdsp *hdsp);
604 static void snd_hdsp_initialize_midi_flush (struct hdsp *hdsp);
605 static void snd_hdsp_initialize_channels (struct hdsp *hdsp);
606 static int hdsp_fifo_wait(struct hdsp *hdsp, int count, int timeout);
607 static int hdsp_autosync_ref(struct hdsp *hdsp);
608 static int snd_hdsp_set_defaults(struct hdsp *hdsp);
609 static void snd_hdsp_9652_enable_mixer (struct hdsp *hdsp);
610 
611 static int hdsp_playback_to_output_key (struct hdsp *hdsp, int in, int out)
612 {
613 	switch (hdsp->io_type) {
614 	case Multiface:
615 	case Digiface:
616 	default:
617 		if (hdsp->firmware_rev == 0xa)
618 			return (64 * out) + (32 + (in));
619 		else
620 			return (52 * out) + (26 + (in));
621 	case H9632:
622 		return (32 * out) + (16 + (in));
623 	case H9652:
624 		return (52 * out) + (26 + (in));
625 	}
626 }
627 
628 static int hdsp_input_to_output_key (struct hdsp *hdsp, int in, int out)
629 {
630 	switch (hdsp->io_type) {
631 	case Multiface:
632 	case Digiface:
633 	default:
634 		if (hdsp->firmware_rev == 0xa)
635 			return (64 * out) + in;
636 		else
637 			return (52 * out) + in;
638 	case H9632:
639 		return (32 * out) + in;
640 	case H9652:
641 		return (52 * out) + in;
642 	}
643 }
644 
645 static void hdsp_write(struct hdsp *hdsp, int reg, int val)
646 {
647 	writel(val, hdsp->iobase + reg);
648 }
649 
650 static unsigned int hdsp_read(struct hdsp *hdsp, int reg)
651 {
652 	return readl (hdsp->iobase + reg);
653 }
654 
655 static int hdsp_check_for_iobox (struct hdsp *hdsp)
656 {
657 	if (hdsp->io_type == H9652 || hdsp->io_type == H9632) return 0;
658 	if (hdsp_read (hdsp, HDSP_statusRegister) & HDSP_ConfigError) {
659 		snd_printk ("Hammerfall-DSP: no Digiface or Multiface connected!\n");
660 		hdsp->state &= ~HDSP_FirmwareLoaded;
661 		return -EIO;
662 	}
663 	return 0;
664 }
665 
666 static int hdsp_wait_for_iobox(struct hdsp *hdsp, unsigned int loops,
667 			       unsigned int delay)
668 {
669 	unsigned int i;
670 
671 	if (hdsp->io_type == H9652 || hdsp->io_type == H9632)
672 		return 0;
673 
674 	for (i = 0; i != loops; ++i) {
675 		if (hdsp_read(hdsp, HDSP_statusRegister) & HDSP_ConfigError)
676 			msleep(delay);
677 		else {
678 			snd_printd("Hammerfall-DSP: iobox found after %ums!\n",
679 				   i * delay);
680 			return 0;
681 		}
682 	}
683 
684 	snd_printk("Hammerfall-DSP: no Digiface or Multiface connected!\n");
685 	hdsp->state &= ~HDSP_FirmwareLoaded;
686 	return -EIO;
687 }
688 
689 static int snd_hdsp_load_firmware_from_cache(struct hdsp *hdsp) {
690 
691 	int i;
692 	unsigned long flags;
693 
694 	if ((hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DllError) != 0) {
695 
696 		snd_printk ("Hammerfall-DSP: loading firmware\n");
697 
698 		hdsp_write (hdsp, HDSP_control2Reg, HDSP_S_PROGRAM);
699 		hdsp_write (hdsp, HDSP_fifoData, 0);
700 
701 		if (hdsp_fifo_wait (hdsp, 0, HDSP_LONG_WAIT)) {
702 			snd_printk ("Hammerfall-DSP: timeout waiting for download preparation\n");
703 			return -EIO;
704 		}
705 
706 		hdsp_write (hdsp, HDSP_control2Reg, HDSP_S_LOAD);
707 
708 		for (i = 0; i < 24413; ++i) {
709 			hdsp_write(hdsp, HDSP_fifoData, hdsp->firmware_cache[i]);
710 			if (hdsp_fifo_wait (hdsp, 127, HDSP_LONG_WAIT)) {
711 				snd_printk ("Hammerfall-DSP: timeout during firmware loading\n");
712 				return -EIO;
713 			}
714 		}
715 
716 		ssleep(3);
717 
718 		if (hdsp_fifo_wait (hdsp, 0, HDSP_LONG_WAIT)) {
719 			snd_printk ("Hammerfall-DSP: timeout at end of firmware loading\n");
720 		    	return -EIO;
721 		}
722 
723 #ifdef SNDRV_BIG_ENDIAN
724 		hdsp->control2_register = HDSP_BIGENDIAN_MODE;
725 #else
726 		hdsp->control2_register = 0;
727 #endif
728 		hdsp_write (hdsp, HDSP_control2Reg, hdsp->control2_register);
729 		snd_printk ("Hammerfall-DSP: finished firmware loading\n");
730 
731 	}
732 	if (hdsp->state & HDSP_InitializationComplete) {
733 		snd_printk(KERN_INFO "Hammerfall-DSP: firmware loaded from cache, restoring defaults\n");
734 		spin_lock_irqsave(&hdsp->lock, flags);
735 		snd_hdsp_set_defaults(hdsp);
736 		spin_unlock_irqrestore(&hdsp->lock, flags);
737 	}
738 
739 	hdsp->state |= HDSP_FirmwareLoaded;
740 
741 	return 0;
742 }
743 
744 static int hdsp_get_iobox_version (struct hdsp *hdsp)
745 {
746 	if ((hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DllError) != 0) {
747 
748 		hdsp_write (hdsp, HDSP_control2Reg, HDSP_PROGRAM);
749 		hdsp_write (hdsp, HDSP_fifoData, 0);
750 		if (hdsp_fifo_wait (hdsp, 0, HDSP_SHORT_WAIT) < 0)
751 			return -EIO;
752 
753 		hdsp_write (hdsp, HDSP_control2Reg, HDSP_S_LOAD);
754 		hdsp_write (hdsp, HDSP_fifoData, 0);
755 
756 		if (hdsp_fifo_wait (hdsp, 0, HDSP_SHORT_WAIT)) {
757 			hdsp->io_type = Multiface;
758 			hdsp_write (hdsp, HDSP_control2Reg, HDSP_VERSION_BIT);
759 			hdsp_write (hdsp, HDSP_control2Reg, HDSP_S_LOAD);
760 			hdsp_fifo_wait (hdsp, 0, HDSP_SHORT_WAIT);
761 		} else {
762 			hdsp->io_type = Digiface;
763 		}
764 	} else {
765 		/* firmware was already loaded, get iobox type */
766 		if (hdsp_read(hdsp, HDSP_status2Register) & HDSP_version1)
767 			hdsp->io_type = Multiface;
768 		else
769 			hdsp->io_type = Digiface;
770 	}
771 	return 0;
772 }
773 
774 
775 #ifdef HDSP_FW_LOADER
776 static int hdsp_request_fw_loader(struct hdsp *hdsp);
777 #endif
778 
779 static int hdsp_check_for_firmware (struct hdsp *hdsp, int load_on_demand)
780 {
781 	if (hdsp->io_type == H9652 || hdsp->io_type == H9632)
782 		return 0;
783 	if ((hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DllError) != 0) {
784 		hdsp->state &= ~HDSP_FirmwareLoaded;
785 		if (! load_on_demand)
786 			return -EIO;
787 		snd_printk(KERN_ERR "Hammerfall-DSP: firmware not present.\n");
788 		/* try to load firmware */
789 		if (! (hdsp->state & HDSP_FirmwareCached)) {
790 #ifdef HDSP_FW_LOADER
791 			if (! hdsp_request_fw_loader(hdsp))
792 				return 0;
793 #endif
794 			snd_printk(KERN_ERR
795 				   "Hammerfall-DSP: No firmware loaded nor "
796 				   "cached, please upload firmware.\n");
797 			return -EIO;
798 		}
799 		if (snd_hdsp_load_firmware_from_cache(hdsp) != 0) {
800 			snd_printk(KERN_ERR
801 				   "Hammerfall-DSP: Firmware loading from "
802 				   "cache failed, please upload manually.\n");
803 			return -EIO;
804 		}
805 	}
806 	return 0;
807 }
808 
809 
810 static int hdsp_fifo_wait(struct hdsp *hdsp, int count, int timeout)
811 {
812 	int i;
813 
814 	/* the fifoStatus registers reports on how many words
815 	   are available in the command FIFO.
816 	*/
817 
818 	for (i = 0; i < timeout; i++) {
819 
820 		if ((int)(hdsp_read (hdsp, HDSP_fifoStatus) & 0xff) <= count)
821 			return 0;
822 
823 		/* not very friendly, but we only do this during a firmware
824 		   load and changing the mixer, so we just put up with it.
825 		*/
826 
827 		udelay (100);
828 	}
829 
830 	snd_printk ("Hammerfall-DSP: wait for FIFO status <= %d failed after %d iterations\n",
831 		    count, timeout);
832 	return -1;
833 }
834 
835 static int hdsp_read_gain (struct hdsp *hdsp, unsigned int addr)
836 {
837 	if (addr >= HDSP_MATRIX_MIXER_SIZE)
838 		return 0;
839 
840 	return hdsp->mixer_matrix[addr];
841 }
842 
843 static int hdsp_write_gain(struct hdsp *hdsp, unsigned int addr, unsigned short data)
844 {
845 	unsigned int ad;
846 
847 	if (addr >= HDSP_MATRIX_MIXER_SIZE)
848 		return -1;
849 
850 	if (hdsp->io_type == H9652 || hdsp->io_type == H9632) {
851 
852 		/* from martin bjornsen:
853 
854 		   "You can only write dwords to the
855 		   mixer memory which contain two
856 		   mixer values in the low and high
857 		   word. So if you want to change
858 		   value 0 you have to read value 1
859 		   from the cache and write both to
860 		   the first dword in the mixer
861 		   memory."
862 		*/
863 
864 		if (hdsp->io_type == H9632 && addr >= 512)
865 			return 0;
866 
867 		if (hdsp->io_type == H9652 && addr >= 1352)
868 			return 0;
869 
870 		hdsp->mixer_matrix[addr] = data;
871 
872 
873 		/* `addr' addresses a 16-bit wide address, but
874 		   the address space accessed via hdsp_write
875 		   uses byte offsets. put another way, addr
876 		   varies from 0 to 1351, but to access the
877 		   corresponding memory location, we need
878 		   to access 0 to 2703 ...
879 		*/
880 		ad = addr/2;
881 
882 		hdsp_write (hdsp, 4096 + (ad*4),
883 			    (hdsp->mixer_matrix[(addr&0x7fe)+1] << 16) +
884 			    hdsp->mixer_matrix[addr&0x7fe]);
885 
886 		return 0;
887 
888 	} else {
889 
890 		ad = (addr << 16) + data;
891 
892 		if (hdsp_fifo_wait(hdsp, 127, HDSP_LONG_WAIT))
893 			return -1;
894 
895 		hdsp_write (hdsp, HDSP_fifoData, ad);
896 		hdsp->mixer_matrix[addr] = data;
897 
898 	}
899 
900 	return 0;
901 }
902 
903 static int snd_hdsp_use_is_exclusive(struct hdsp *hdsp)
904 {
905 	unsigned long flags;
906 	int ret = 1;
907 
908 	spin_lock_irqsave(&hdsp->lock, flags);
909 	if ((hdsp->playback_pid != hdsp->capture_pid) &&
910 	    (hdsp->playback_pid >= 0) && (hdsp->capture_pid >= 0))
911 		ret = 0;
912 	spin_unlock_irqrestore(&hdsp->lock, flags);
913 	return ret;
914 }
915 
916 static int hdsp_spdif_sample_rate(struct hdsp *hdsp)
917 {
918 	unsigned int status = hdsp_read(hdsp, HDSP_statusRegister);
919 	unsigned int rate_bits = (status & HDSP_spdifFrequencyMask);
920 
921 	/* For the 9632, the mask is different */
922 	if (hdsp->io_type == H9632)
923 		 rate_bits = (status & HDSP_spdifFrequencyMask_9632);
924 
925 	if (status & HDSP_SPDIFErrorFlag)
926 		return 0;
927 
928 	switch (rate_bits) {
929 	case HDSP_spdifFrequency32KHz: return 32000;
930 	case HDSP_spdifFrequency44_1KHz: return 44100;
931 	case HDSP_spdifFrequency48KHz: return 48000;
932 	case HDSP_spdifFrequency64KHz: return 64000;
933 	case HDSP_spdifFrequency88_2KHz: return 88200;
934 	case HDSP_spdifFrequency96KHz: return 96000;
935 	case HDSP_spdifFrequency128KHz:
936 		if (hdsp->io_type == H9632) return 128000;
937 		break;
938 	case HDSP_spdifFrequency176_4KHz:
939 		if (hdsp->io_type == H9632) return 176400;
940 		break;
941 	case HDSP_spdifFrequency192KHz:
942 		if (hdsp->io_type == H9632) return 192000;
943 		break;
944 	default:
945 		break;
946 	}
947 	snd_printk ("Hammerfall-DSP: unknown spdif frequency status; bits = 0x%x, status = 0x%x\n", rate_bits, status);
948 	return 0;
949 }
950 
951 static int hdsp_external_sample_rate(struct hdsp *hdsp)
952 {
953 	unsigned int status2 = hdsp_read(hdsp, HDSP_status2Register);
954 	unsigned int rate_bits = status2 & HDSP_systemFrequencyMask;
955 
956 	/* For the 9632 card, there seems to be no bit for indicating external
957 	 * sample rate greater than 96kHz. The card reports the corresponding
958 	 * single speed. So the best means seems to get spdif rate when
959 	 * autosync reference is spdif */
960 	if (hdsp->io_type == H9632 &&
961 	    hdsp_autosync_ref(hdsp) == HDSP_AUTOSYNC_FROM_SPDIF)
962 		 return hdsp_spdif_sample_rate(hdsp);
963 
964 	switch (rate_bits) {
965 	case HDSP_systemFrequency32:   return 32000;
966 	case HDSP_systemFrequency44_1: return 44100;
967 	case HDSP_systemFrequency48:   return 48000;
968 	case HDSP_systemFrequency64:   return 64000;
969 	case HDSP_systemFrequency88_2: return 88200;
970 	case HDSP_systemFrequency96:   return 96000;
971 	default:
972 		return 0;
973 	}
974 }
975 
976 static void hdsp_compute_period_size(struct hdsp *hdsp)
977 {
978 	hdsp->period_bytes = 1 << ((hdsp_decode_latency(hdsp->control_register) + 8));
979 }
980 
981 static snd_pcm_uframes_t hdsp_hw_pointer(struct hdsp *hdsp)
982 {
983 	int position;
984 
985 	position = hdsp_read(hdsp, HDSP_statusRegister);
986 
987 	if (!hdsp->precise_ptr)
988 		return (position & HDSP_BufferID) ? (hdsp->period_bytes / 4) : 0;
989 
990 	position &= HDSP_BufferPositionMask;
991 	position /= 4;
992 	position &= (hdsp->period_bytes/2) - 1;
993 	return position;
994 }
995 
996 static void hdsp_reset_hw_pointer(struct hdsp *hdsp)
997 {
998 	hdsp_write (hdsp, HDSP_resetPointer, 0);
999 	if (hdsp->io_type == H9632 && hdsp->firmware_rev >= 152)
1000 		/* HDSP_resetPointer = HDSP_freqReg, which is strange and
1001 		 * requires (?) to write again DDS value after a reset pointer
1002 		 * (at least, it works like this) */
1003 		hdsp_write (hdsp, HDSP_freqReg, hdsp->dds_value);
1004 }
1005 
1006 static void hdsp_start_audio(struct hdsp *s)
1007 {
1008 	s->control_register |= (HDSP_AudioInterruptEnable | HDSP_Start);
1009 	hdsp_write(s, HDSP_controlRegister, s->control_register);
1010 }
1011 
1012 static void hdsp_stop_audio(struct hdsp *s)
1013 {
1014 	s->control_register &= ~(HDSP_Start | HDSP_AudioInterruptEnable);
1015 	hdsp_write(s, HDSP_controlRegister, s->control_register);
1016 }
1017 
1018 static void hdsp_silence_playback(struct hdsp *hdsp)
1019 {
1020 	memset(hdsp->playback_buffer, 0, HDSP_DMA_AREA_BYTES);
1021 }
1022 
1023 static int hdsp_set_interrupt_interval(struct hdsp *s, unsigned int frames)
1024 {
1025 	int n;
1026 
1027 	spin_lock_irq(&s->lock);
1028 
1029 	frames >>= 7;
1030 	n = 0;
1031 	while (frames) {
1032 		n++;
1033 		frames >>= 1;
1034 	}
1035 
1036 	s->control_register &= ~HDSP_LatencyMask;
1037 	s->control_register |= hdsp_encode_latency(n);
1038 
1039 	hdsp_write(s, HDSP_controlRegister, s->control_register);
1040 
1041 	hdsp_compute_period_size(s);
1042 
1043 	spin_unlock_irq(&s->lock);
1044 
1045 	return 0;
1046 }
1047 
1048 static void hdsp_set_dds_value(struct hdsp *hdsp, int rate)
1049 {
1050 	u64 n;
1051 
1052 	if (rate >= 112000)
1053 		rate /= 4;
1054 	else if (rate >= 56000)
1055 		rate /= 2;
1056 
1057 	n = DDS_NUMERATOR;
1058 	n = div_u64(n, rate);
1059 	/* n should be less than 2^32 for being written to FREQ register */
1060 	snd_BUG_ON(n >> 32);
1061 	/* HDSP_freqReg and HDSP_resetPointer are the same, so keep the DDS
1062 	   value to write it after a reset */
1063 	hdsp->dds_value = n;
1064 	hdsp_write(hdsp, HDSP_freqReg, hdsp->dds_value);
1065 }
1066 
1067 static int hdsp_set_rate(struct hdsp *hdsp, int rate, int called_internally)
1068 {
1069 	int reject_if_open = 0;
1070 	int current_rate;
1071 	int rate_bits;
1072 
1073 	/* ASSUMPTION: hdsp->lock is either held, or
1074 	   there is no need for it (e.g. during module
1075 	   initialization).
1076 	*/
1077 
1078 	if (!(hdsp->control_register & HDSP_ClockModeMaster)) {
1079 		if (called_internally) {
1080 			/* request from ctl or card initialization */
1081 			snd_printk(KERN_ERR "Hammerfall-DSP: device is not running as a clock master: cannot set sample rate.\n");
1082 			return -1;
1083 		} else {
1084 			/* hw_param request while in AutoSync mode */
1085 			int external_freq = hdsp_external_sample_rate(hdsp);
1086 			int spdif_freq = hdsp_spdif_sample_rate(hdsp);
1087 
1088 			if ((spdif_freq == external_freq*2) && (hdsp_autosync_ref(hdsp) >= HDSP_AUTOSYNC_FROM_ADAT1))
1089 				snd_printk(KERN_INFO "Hammerfall-DSP: Detected ADAT in double speed mode\n");
1090 			else if (hdsp->io_type == H9632 && (spdif_freq == external_freq*4) && (hdsp_autosync_ref(hdsp) >= HDSP_AUTOSYNC_FROM_ADAT1))
1091 				snd_printk(KERN_INFO "Hammerfall-DSP: Detected ADAT in quad speed mode\n");
1092 			else if (rate != external_freq) {
1093 				snd_printk(KERN_INFO "Hammerfall-DSP: No AutoSync source for requested rate\n");
1094 				return -1;
1095 			}
1096 		}
1097 	}
1098 
1099 	current_rate = hdsp->system_sample_rate;
1100 
1101 	/* Changing from a "single speed" to a "double speed" rate is
1102 	   not allowed if any substreams are open. This is because
1103 	   such a change causes a shift in the location of
1104 	   the DMA buffers and a reduction in the number of available
1105 	   buffers.
1106 
1107 	   Note that a similar but essentially insoluble problem
1108 	   exists for externally-driven rate changes. All we can do
1109 	   is to flag rate changes in the read/write routines.  */
1110 
1111 	if (rate > 96000 && hdsp->io_type != H9632)
1112 		return -EINVAL;
1113 
1114 	switch (rate) {
1115 	case 32000:
1116 		if (current_rate > 48000)
1117 			reject_if_open = 1;
1118 		rate_bits = HDSP_Frequency32KHz;
1119 		break;
1120 	case 44100:
1121 		if (current_rate > 48000)
1122 			reject_if_open = 1;
1123 		rate_bits = HDSP_Frequency44_1KHz;
1124 		break;
1125 	case 48000:
1126 		if (current_rate > 48000)
1127 			reject_if_open = 1;
1128 		rate_bits = HDSP_Frequency48KHz;
1129 		break;
1130 	case 64000:
1131 		if (current_rate <= 48000 || current_rate > 96000)
1132 			reject_if_open = 1;
1133 		rate_bits = HDSP_Frequency64KHz;
1134 		break;
1135 	case 88200:
1136 		if (current_rate <= 48000 || current_rate > 96000)
1137 			reject_if_open = 1;
1138 		rate_bits = HDSP_Frequency88_2KHz;
1139 		break;
1140 	case 96000:
1141 		if (current_rate <= 48000 || current_rate > 96000)
1142 			reject_if_open = 1;
1143 		rate_bits = HDSP_Frequency96KHz;
1144 		break;
1145 	case 128000:
1146 		if (current_rate < 128000)
1147 			reject_if_open = 1;
1148 		rate_bits = HDSP_Frequency128KHz;
1149 		break;
1150 	case 176400:
1151 		if (current_rate < 128000)
1152 			reject_if_open = 1;
1153 		rate_bits = HDSP_Frequency176_4KHz;
1154 		break;
1155 	case 192000:
1156 		if (current_rate < 128000)
1157 			reject_if_open = 1;
1158 		rate_bits = HDSP_Frequency192KHz;
1159 		break;
1160 	default:
1161 		return -EINVAL;
1162 	}
1163 
1164 	if (reject_if_open && (hdsp->capture_pid >= 0 || hdsp->playback_pid >= 0)) {
1165 		snd_printk ("Hammerfall-DSP: cannot change speed mode (capture PID = %d, playback PID = %d)\n",
1166 			    hdsp->capture_pid,
1167 			    hdsp->playback_pid);
1168 		return -EBUSY;
1169 	}
1170 
1171 	hdsp->control_register &= ~HDSP_FrequencyMask;
1172 	hdsp->control_register |= rate_bits;
1173 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
1174 
1175 	/* For HDSP9632 rev 152, need to set DDS value in FREQ register */
1176 	if (hdsp->io_type == H9632 && hdsp->firmware_rev >= 152)
1177 		hdsp_set_dds_value(hdsp, rate);
1178 
1179 	if (rate >= 128000) {
1180 		hdsp->channel_map = channel_map_H9632_qs;
1181 	} else if (rate > 48000) {
1182 		if (hdsp->io_type == H9632)
1183 			hdsp->channel_map = channel_map_H9632_ds;
1184 		else
1185 			hdsp->channel_map = channel_map_ds;
1186 	} else {
1187 		switch (hdsp->io_type) {
1188 		case Multiface:
1189 			hdsp->channel_map = channel_map_mf_ss;
1190 			break;
1191 		case Digiface:
1192 		case H9652:
1193 			hdsp->channel_map = channel_map_df_ss;
1194 			break;
1195 		case H9632:
1196 			hdsp->channel_map = channel_map_H9632_ss;
1197 			break;
1198 		default:
1199 			/* should never happen */
1200 			break;
1201 		}
1202 	}
1203 
1204 	hdsp->system_sample_rate = rate;
1205 
1206 	return 0;
1207 }
1208 
1209 /*----------------------------------------------------------------------------
1210    MIDI
1211   ----------------------------------------------------------------------------*/
1212 
1213 static unsigned char snd_hdsp_midi_read_byte (struct hdsp *hdsp, int id)
1214 {
1215 	/* the hardware already does the relevant bit-mask with 0xff */
1216 	if (id)
1217 		return hdsp_read(hdsp, HDSP_midiDataIn1);
1218 	else
1219 		return hdsp_read(hdsp, HDSP_midiDataIn0);
1220 }
1221 
1222 static void snd_hdsp_midi_write_byte (struct hdsp *hdsp, int id, int val)
1223 {
1224 	/* the hardware already does the relevant bit-mask with 0xff */
1225 	if (id)
1226 		hdsp_write(hdsp, HDSP_midiDataOut1, val);
1227 	else
1228 		hdsp_write(hdsp, HDSP_midiDataOut0, val);
1229 }
1230 
1231 static int snd_hdsp_midi_input_available (struct hdsp *hdsp, int id)
1232 {
1233 	if (id)
1234 		return (hdsp_read(hdsp, HDSP_midiStatusIn1) & 0xff);
1235 	else
1236 		return (hdsp_read(hdsp, HDSP_midiStatusIn0) & 0xff);
1237 }
1238 
1239 static int snd_hdsp_midi_output_possible (struct hdsp *hdsp, int id)
1240 {
1241 	int fifo_bytes_used;
1242 
1243 	if (id)
1244 		fifo_bytes_used = hdsp_read(hdsp, HDSP_midiStatusOut1) & 0xff;
1245 	else
1246 		fifo_bytes_used = hdsp_read(hdsp, HDSP_midiStatusOut0) & 0xff;
1247 
1248 	if (fifo_bytes_used < 128)
1249 		return  128 - fifo_bytes_used;
1250 	else
1251 		return 0;
1252 }
1253 
1254 static void snd_hdsp_flush_midi_input (struct hdsp *hdsp, int id)
1255 {
1256 	while (snd_hdsp_midi_input_available (hdsp, id))
1257 		snd_hdsp_midi_read_byte (hdsp, id);
1258 }
1259 
1260 static int snd_hdsp_midi_output_write (struct hdsp_midi *hmidi)
1261 {
1262 	unsigned long flags;
1263 	int n_pending;
1264 	int to_write;
1265 	int i;
1266 	unsigned char buf[128];
1267 
1268 	/* Output is not interrupt driven */
1269 
1270 	spin_lock_irqsave (&hmidi->lock, flags);
1271 	if (hmidi->output) {
1272 		if (!snd_rawmidi_transmit_empty (hmidi->output)) {
1273 			if ((n_pending = snd_hdsp_midi_output_possible (hmidi->hdsp, hmidi->id)) > 0) {
1274 				if (n_pending > (int)sizeof (buf))
1275 					n_pending = sizeof (buf);
1276 
1277 				if ((to_write = snd_rawmidi_transmit (hmidi->output, buf, n_pending)) > 0) {
1278 					for (i = 0; i < to_write; ++i)
1279 						snd_hdsp_midi_write_byte (hmidi->hdsp, hmidi->id, buf[i]);
1280 				}
1281 			}
1282 		}
1283 	}
1284 	spin_unlock_irqrestore (&hmidi->lock, flags);
1285 	return 0;
1286 }
1287 
1288 static int snd_hdsp_midi_input_read (struct hdsp_midi *hmidi)
1289 {
1290 	unsigned char buf[128]; /* this buffer is designed to match the MIDI input FIFO size */
1291 	unsigned long flags;
1292 	int n_pending;
1293 	int i;
1294 
1295 	spin_lock_irqsave (&hmidi->lock, flags);
1296 	if ((n_pending = snd_hdsp_midi_input_available (hmidi->hdsp, hmidi->id)) > 0) {
1297 		if (hmidi->input) {
1298 			if (n_pending > (int)sizeof (buf))
1299 				n_pending = sizeof (buf);
1300 			for (i = 0; i < n_pending; ++i)
1301 				buf[i] = snd_hdsp_midi_read_byte (hmidi->hdsp, hmidi->id);
1302 			if (n_pending)
1303 				snd_rawmidi_receive (hmidi->input, buf, n_pending);
1304 		} else {
1305 			/* flush the MIDI input FIFO */
1306 			while (--n_pending)
1307 				snd_hdsp_midi_read_byte (hmidi->hdsp, hmidi->id);
1308 		}
1309 	}
1310 	hmidi->pending = 0;
1311 	if (hmidi->id)
1312 		hmidi->hdsp->control_register |= HDSP_Midi1InterruptEnable;
1313 	else
1314 		hmidi->hdsp->control_register |= HDSP_Midi0InterruptEnable;
1315 	hdsp_write(hmidi->hdsp, HDSP_controlRegister, hmidi->hdsp->control_register);
1316 	spin_unlock_irqrestore (&hmidi->lock, flags);
1317 	return snd_hdsp_midi_output_write (hmidi);
1318 }
1319 
1320 static void snd_hdsp_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
1321 {
1322 	struct hdsp *hdsp;
1323 	struct hdsp_midi *hmidi;
1324 	unsigned long flags;
1325 	u32 ie;
1326 
1327 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;
1328 	hdsp = hmidi->hdsp;
1329 	ie = hmidi->id ? HDSP_Midi1InterruptEnable : HDSP_Midi0InterruptEnable;
1330 	spin_lock_irqsave (&hdsp->lock, flags);
1331 	if (up) {
1332 		if (!(hdsp->control_register & ie)) {
1333 			snd_hdsp_flush_midi_input (hdsp, hmidi->id);
1334 			hdsp->control_register |= ie;
1335 		}
1336 	} else {
1337 		hdsp->control_register &= ~ie;
1338 		tasklet_kill(&hdsp->midi_tasklet);
1339 	}
1340 
1341 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
1342 	spin_unlock_irqrestore (&hdsp->lock, flags);
1343 }
1344 
1345 static void snd_hdsp_midi_output_timer(unsigned long data)
1346 {
1347 	struct hdsp_midi *hmidi = (struct hdsp_midi *) data;
1348 	unsigned long flags;
1349 
1350 	snd_hdsp_midi_output_write(hmidi);
1351 	spin_lock_irqsave (&hmidi->lock, flags);
1352 
1353 	/* this does not bump hmidi->istimer, because the
1354 	   kernel automatically removed the timer when it
1355 	   expired, and we are now adding it back, thus
1356 	   leaving istimer wherever it was set before.
1357 	*/
1358 
1359 	if (hmidi->istimer) {
1360 		hmidi->timer.expires = 1 + jiffies;
1361 		add_timer(&hmidi->timer);
1362 	}
1363 
1364 	spin_unlock_irqrestore (&hmidi->lock, flags);
1365 }
1366 
1367 static void snd_hdsp_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
1368 {
1369 	struct hdsp_midi *hmidi;
1370 	unsigned long flags;
1371 
1372 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;
1373 	spin_lock_irqsave (&hmidi->lock, flags);
1374 	if (up) {
1375 		if (!hmidi->istimer) {
1376 			init_timer(&hmidi->timer);
1377 			hmidi->timer.function = snd_hdsp_midi_output_timer;
1378 			hmidi->timer.data = (unsigned long) hmidi;
1379 			hmidi->timer.expires = 1 + jiffies;
1380 			add_timer(&hmidi->timer);
1381 			hmidi->istimer++;
1382 		}
1383 	} else {
1384 		if (hmidi->istimer && --hmidi->istimer <= 0)
1385 			del_timer (&hmidi->timer);
1386 	}
1387 	spin_unlock_irqrestore (&hmidi->lock, flags);
1388 	if (up)
1389 		snd_hdsp_midi_output_write(hmidi);
1390 }
1391 
1392 static int snd_hdsp_midi_input_open(struct snd_rawmidi_substream *substream)
1393 {
1394 	struct hdsp_midi *hmidi;
1395 
1396 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;
1397 	spin_lock_irq (&hmidi->lock);
1398 	snd_hdsp_flush_midi_input (hmidi->hdsp, hmidi->id);
1399 	hmidi->input = substream;
1400 	spin_unlock_irq (&hmidi->lock);
1401 
1402 	return 0;
1403 }
1404 
1405 static int snd_hdsp_midi_output_open(struct snd_rawmidi_substream *substream)
1406 {
1407 	struct hdsp_midi *hmidi;
1408 
1409 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;
1410 	spin_lock_irq (&hmidi->lock);
1411 	hmidi->output = substream;
1412 	spin_unlock_irq (&hmidi->lock);
1413 
1414 	return 0;
1415 }
1416 
1417 static int snd_hdsp_midi_input_close(struct snd_rawmidi_substream *substream)
1418 {
1419 	struct hdsp_midi *hmidi;
1420 
1421 	snd_hdsp_midi_input_trigger (substream, 0);
1422 
1423 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;
1424 	spin_lock_irq (&hmidi->lock);
1425 	hmidi->input = NULL;
1426 	spin_unlock_irq (&hmidi->lock);
1427 
1428 	return 0;
1429 }
1430 
1431 static int snd_hdsp_midi_output_close(struct snd_rawmidi_substream *substream)
1432 {
1433 	struct hdsp_midi *hmidi;
1434 
1435 	snd_hdsp_midi_output_trigger (substream, 0);
1436 
1437 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;
1438 	spin_lock_irq (&hmidi->lock);
1439 	hmidi->output = NULL;
1440 	spin_unlock_irq (&hmidi->lock);
1441 
1442 	return 0;
1443 }
1444 
1445 static struct snd_rawmidi_ops snd_hdsp_midi_output =
1446 {
1447 	.open =		snd_hdsp_midi_output_open,
1448 	.close =	snd_hdsp_midi_output_close,
1449 	.trigger =	snd_hdsp_midi_output_trigger,
1450 };
1451 
1452 static struct snd_rawmidi_ops snd_hdsp_midi_input =
1453 {
1454 	.open =		snd_hdsp_midi_input_open,
1455 	.close =	snd_hdsp_midi_input_close,
1456 	.trigger =	snd_hdsp_midi_input_trigger,
1457 };
1458 
1459 static int snd_hdsp_create_midi (struct snd_card *card, struct hdsp *hdsp, int id)
1460 {
1461 	char buf[32];
1462 
1463 	hdsp->midi[id].id = id;
1464 	hdsp->midi[id].rmidi = NULL;
1465 	hdsp->midi[id].input = NULL;
1466 	hdsp->midi[id].output = NULL;
1467 	hdsp->midi[id].hdsp = hdsp;
1468 	hdsp->midi[id].istimer = 0;
1469 	hdsp->midi[id].pending = 0;
1470 	spin_lock_init (&hdsp->midi[id].lock);
1471 
1472 	sprintf (buf, "%s MIDI %d", card->shortname, id+1);
1473 	if (snd_rawmidi_new (card, buf, id, 1, 1, &hdsp->midi[id].rmidi) < 0)
1474 		return -1;
1475 
1476 	sprintf(hdsp->midi[id].rmidi->name, "HDSP MIDI %d", id+1);
1477 	hdsp->midi[id].rmidi->private_data = &hdsp->midi[id];
1478 
1479 	snd_rawmidi_set_ops (hdsp->midi[id].rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_hdsp_midi_output);
1480 	snd_rawmidi_set_ops (hdsp->midi[id].rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_hdsp_midi_input);
1481 
1482 	hdsp->midi[id].rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT |
1483 		SNDRV_RAWMIDI_INFO_INPUT |
1484 		SNDRV_RAWMIDI_INFO_DUPLEX;
1485 
1486 	return 0;
1487 }
1488 
1489 /*-----------------------------------------------------------------------------
1490   Control Interface
1491   ----------------------------------------------------------------------------*/
1492 
1493 static u32 snd_hdsp_convert_from_aes(struct snd_aes_iec958 *aes)
1494 {
1495 	u32 val = 0;
1496 	val |= (aes->status[0] & IEC958_AES0_PROFESSIONAL) ? HDSP_SPDIFProfessional : 0;
1497 	val |= (aes->status[0] & IEC958_AES0_NONAUDIO) ? HDSP_SPDIFNonAudio : 0;
1498 	if (val & HDSP_SPDIFProfessional)
1499 		val |= (aes->status[0] & IEC958_AES0_PRO_EMPHASIS_5015) ? HDSP_SPDIFEmphasis : 0;
1500 	else
1501 		val |= (aes->status[0] & IEC958_AES0_CON_EMPHASIS_5015) ? HDSP_SPDIFEmphasis : 0;
1502 	return val;
1503 }
1504 
1505 static void snd_hdsp_convert_to_aes(struct snd_aes_iec958 *aes, u32 val)
1506 {
1507 	aes->status[0] = ((val & HDSP_SPDIFProfessional) ? IEC958_AES0_PROFESSIONAL : 0) |
1508 			 ((val & HDSP_SPDIFNonAudio) ? IEC958_AES0_NONAUDIO : 0);
1509 	if (val & HDSP_SPDIFProfessional)
1510 		aes->status[0] |= (val & HDSP_SPDIFEmphasis) ? IEC958_AES0_PRO_EMPHASIS_5015 : 0;
1511 	else
1512 		aes->status[0] |= (val & HDSP_SPDIFEmphasis) ? IEC958_AES0_CON_EMPHASIS_5015 : 0;
1513 }
1514 
1515 static int snd_hdsp_control_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1516 {
1517 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1518 	uinfo->count = 1;
1519 	return 0;
1520 }
1521 
1522 static int snd_hdsp_control_spdif_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1523 {
1524 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1525 
1526 	snd_hdsp_convert_to_aes(&ucontrol->value.iec958, hdsp->creg_spdif);
1527 	return 0;
1528 }
1529 
1530 static int snd_hdsp_control_spdif_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1531 {
1532 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1533 	int change;
1534 	u32 val;
1535 
1536 	val = snd_hdsp_convert_from_aes(&ucontrol->value.iec958);
1537 	spin_lock_irq(&hdsp->lock);
1538 	change = val != hdsp->creg_spdif;
1539 	hdsp->creg_spdif = val;
1540 	spin_unlock_irq(&hdsp->lock);
1541 	return change;
1542 }
1543 
1544 static int snd_hdsp_control_spdif_stream_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1545 {
1546 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1547 	uinfo->count = 1;
1548 	return 0;
1549 }
1550 
1551 static int snd_hdsp_control_spdif_stream_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1552 {
1553 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1554 
1555 	snd_hdsp_convert_to_aes(&ucontrol->value.iec958, hdsp->creg_spdif_stream);
1556 	return 0;
1557 }
1558 
1559 static int snd_hdsp_control_spdif_stream_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1560 {
1561 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1562 	int change;
1563 	u32 val;
1564 
1565 	val = snd_hdsp_convert_from_aes(&ucontrol->value.iec958);
1566 	spin_lock_irq(&hdsp->lock);
1567 	change = val != hdsp->creg_spdif_stream;
1568 	hdsp->creg_spdif_stream = val;
1569 	hdsp->control_register &= ~(HDSP_SPDIFProfessional | HDSP_SPDIFNonAudio | HDSP_SPDIFEmphasis);
1570 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register |= val);
1571 	spin_unlock_irq(&hdsp->lock);
1572 	return change;
1573 }
1574 
1575 static int snd_hdsp_control_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1576 {
1577 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1578 	uinfo->count = 1;
1579 	return 0;
1580 }
1581 
1582 static int snd_hdsp_control_spdif_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1583 {
1584 	ucontrol->value.iec958.status[0] = kcontrol->private_value;
1585 	return 0;
1586 }
1587 
1588 #define HDSP_SPDIF_IN(xname, xindex) \
1589 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1590   .name = xname, \
1591   .index = xindex, \
1592   .info = snd_hdsp_info_spdif_in, \
1593   .get = snd_hdsp_get_spdif_in, \
1594   .put = snd_hdsp_put_spdif_in }
1595 
1596 static unsigned int hdsp_spdif_in(struct hdsp *hdsp)
1597 {
1598 	return hdsp_decode_spdif_in(hdsp->control_register & HDSP_SPDIFInputMask);
1599 }
1600 
1601 static int hdsp_set_spdif_input(struct hdsp *hdsp, int in)
1602 {
1603 	hdsp->control_register &= ~HDSP_SPDIFInputMask;
1604 	hdsp->control_register |= hdsp_encode_spdif_in(in);
1605 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
1606 	return 0;
1607 }
1608 
1609 static int snd_hdsp_info_spdif_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1610 {
1611 	static char *texts[4] = {"Optical", "Coaxial", "Internal", "AES"};
1612 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1613 
1614 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1615 	uinfo->count = 1;
1616 	uinfo->value.enumerated.items = ((hdsp->io_type == H9632) ? 4 : 3);
1617 	if (uinfo->value.enumerated.item > ((hdsp->io_type == H9632) ? 3 : 2))
1618 		uinfo->value.enumerated.item = ((hdsp->io_type == H9632) ? 3 : 2);
1619 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1620 	return 0;
1621 }
1622 
1623 static int snd_hdsp_get_spdif_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1624 {
1625 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1626 
1627 	ucontrol->value.enumerated.item[0] = hdsp_spdif_in(hdsp);
1628 	return 0;
1629 }
1630 
1631 static int snd_hdsp_put_spdif_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1632 {
1633 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1634 	int change;
1635 	unsigned int val;
1636 
1637 	if (!snd_hdsp_use_is_exclusive(hdsp))
1638 		return -EBUSY;
1639 	val = ucontrol->value.enumerated.item[0] % ((hdsp->io_type == H9632) ? 4 : 3);
1640 	spin_lock_irq(&hdsp->lock);
1641 	change = val != hdsp_spdif_in(hdsp);
1642 	if (change)
1643 		hdsp_set_spdif_input(hdsp, val);
1644 	spin_unlock_irq(&hdsp->lock);
1645 	return change;
1646 }
1647 
1648 #define HDSP_SPDIF_OUT(xname, xindex) \
1649 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1650   .info = snd_hdsp_info_spdif_bits, \
1651   .get = snd_hdsp_get_spdif_out, .put = snd_hdsp_put_spdif_out }
1652 
1653 static int hdsp_spdif_out(struct hdsp *hdsp)
1654 {
1655 	return (hdsp->control_register & HDSP_SPDIFOpticalOut) ? 1 : 0;
1656 }
1657 
1658 static int hdsp_set_spdif_output(struct hdsp *hdsp, int out)
1659 {
1660 	if (out)
1661 		hdsp->control_register |= HDSP_SPDIFOpticalOut;
1662 	else
1663 		hdsp->control_register &= ~HDSP_SPDIFOpticalOut;
1664 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
1665 	return 0;
1666 }
1667 
1668 #define snd_hdsp_info_spdif_bits	snd_ctl_boolean_mono_info
1669 
1670 static int snd_hdsp_get_spdif_out(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1671 {
1672 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1673 
1674 	ucontrol->value.integer.value[0] = hdsp_spdif_out(hdsp);
1675 	return 0;
1676 }
1677 
1678 static int snd_hdsp_put_spdif_out(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1679 {
1680 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1681 	int change;
1682 	unsigned int val;
1683 
1684 	if (!snd_hdsp_use_is_exclusive(hdsp))
1685 		return -EBUSY;
1686 	val = ucontrol->value.integer.value[0] & 1;
1687 	spin_lock_irq(&hdsp->lock);
1688 	change = (int)val != hdsp_spdif_out(hdsp);
1689 	hdsp_set_spdif_output(hdsp, val);
1690 	spin_unlock_irq(&hdsp->lock);
1691 	return change;
1692 }
1693 
1694 #define HDSP_SPDIF_PROFESSIONAL(xname, xindex) \
1695 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1696   .info = snd_hdsp_info_spdif_bits, \
1697   .get = snd_hdsp_get_spdif_professional, .put = snd_hdsp_put_spdif_professional }
1698 
1699 static int hdsp_spdif_professional(struct hdsp *hdsp)
1700 {
1701 	return (hdsp->control_register & HDSP_SPDIFProfessional) ? 1 : 0;
1702 }
1703 
1704 static int hdsp_set_spdif_professional(struct hdsp *hdsp, int val)
1705 {
1706 	if (val)
1707 		hdsp->control_register |= HDSP_SPDIFProfessional;
1708 	else
1709 		hdsp->control_register &= ~HDSP_SPDIFProfessional;
1710 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
1711 	return 0;
1712 }
1713 
1714 static int snd_hdsp_get_spdif_professional(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1715 {
1716 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1717 
1718 	ucontrol->value.integer.value[0] = hdsp_spdif_professional(hdsp);
1719 	return 0;
1720 }
1721 
1722 static int snd_hdsp_put_spdif_professional(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1723 {
1724 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1725 	int change;
1726 	unsigned int val;
1727 
1728 	if (!snd_hdsp_use_is_exclusive(hdsp))
1729 		return -EBUSY;
1730 	val = ucontrol->value.integer.value[0] & 1;
1731 	spin_lock_irq(&hdsp->lock);
1732 	change = (int)val != hdsp_spdif_professional(hdsp);
1733 	hdsp_set_spdif_professional(hdsp, val);
1734 	spin_unlock_irq(&hdsp->lock);
1735 	return change;
1736 }
1737 
1738 #define HDSP_SPDIF_EMPHASIS(xname, xindex) \
1739 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1740   .info = snd_hdsp_info_spdif_bits, \
1741   .get = snd_hdsp_get_spdif_emphasis, .put = snd_hdsp_put_spdif_emphasis }
1742 
1743 static int hdsp_spdif_emphasis(struct hdsp *hdsp)
1744 {
1745 	return (hdsp->control_register & HDSP_SPDIFEmphasis) ? 1 : 0;
1746 }
1747 
1748 static int hdsp_set_spdif_emphasis(struct hdsp *hdsp, int val)
1749 {
1750 	if (val)
1751 		hdsp->control_register |= HDSP_SPDIFEmphasis;
1752 	else
1753 		hdsp->control_register &= ~HDSP_SPDIFEmphasis;
1754 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
1755 	return 0;
1756 }
1757 
1758 static int snd_hdsp_get_spdif_emphasis(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1759 {
1760 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1761 
1762 	ucontrol->value.integer.value[0] = hdsp_spdif_emphasis(hdsp);
1763 	return 0;
1764 }
1765 
1766 static int snd_hdsp_put_spdif_emphasis(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1767 {
1768 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1769 	int change;
1770 	unsigned int val;
1771 
1772 	if (!snd_hdsp_use_is_exclusive(hdsp))
1773 		return -EBUSY;
1774 	val = ucontrol->value.integer.value[0] & 1;
1775 	spin_lock_irq(&hdsp->lock);
1776 	change = (int)val != hdsp_spdif_emphasis(hdsp);
1777 	hdsp_set_spdif_emphasis(hdsp, val);
1778 	spin_unlock_irq(&hdsp->lock);
1779 	return change;
1780 }
1781 
1782 #define HDSP_SPDIF_NON_AUDIO(xname, xindex) \
1783 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1784   .info = snd_hdsp_info_spdif_bits, \
1785   .get = snd_hdsp_get_spdif_nonaudio, .put = snd_hdsp_put_spdif_nonaudio }
1786 
1787 static int hdsp_spdif_nonaudio(struct hdsp *hdsp)
1788 {
1789 	return (hdsp->control_register & HDSP_SPDIFNonAudio) ? 1 : 0;
1790 }
1791 
1792 static int hdsp_set_spdif_nonaudio(struct hdsp *hdsp, int val)
1793 {
1794 	if (val)
1795 		hdsp->control_register |= HDSP_SPDIFNonAudio;
1796 	else
1797 		hdsp->control_register &= ~HDSP_SPDIFNonAudio;
1798 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
1799 	return 0;
1800 }
1801 
1802 static int snd_hdsp_get_spdif_nonaudio(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1803 {
1804 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1805 
1806 	ucontrol->value.integer.value[0] = hdsp_spdif_nonaudio(hdsp);
1807 	return 0;
1808 }
1809 
1810 static int snd_hdsp_put_spdif_nonaudio(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1811 {
1812 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1813 	int change;
1814 	unsigned int val;
1815 
1816 	if (!snd_hdsp_use_is_exclusive(hdsp))
1817 		return -EBUSY;
1818 	val = ucontrol->value.integer.value[0] & 1;
1819 	spin_lock_irq(&hdsp->lock);
1820 	change = (int)val != hdsp_spdif_nonaudio(hdsp);
1821 	hdsp_set_spdif_nonaudio(hdsp, val);
1822 	spin_unlock_irq(&hdsp->lock);
1823 	return change;
1824 }
1825 
1826 #define HDSP_SPDIF_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_spdif_sample_rate, \
1832   .get = snd_hdsp_get_spdif_sample_rate \
1833 }
1834 
1835 static int snd_hdsp_info_spdif_sample_rate(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1836 {
1837 	static char *texts[] = {"32000", "44100", "48000", "64000", "88200", "96000", "None", "128000", "176400", "192000"};
1838 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1839 
1840 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1841 	uinfo->count = 1;
1842 	uinfo->value.enumerated.items = (hdsp->io_type == H9632) ? 10 : 7;
1843 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
1844 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
1845 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1846 	return 0;
1847 }
1848 
1849 static int snd_hdsp_get_spdif_sample_rate(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1850 {
1851 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1852 
1853 	switch (hdsp_spdif_sample_rate(hdsp)) {
1854 	case 32000:
1855 		ucontrol->value.enumerated.item[0] = 0;
1856 		break;
1857 	case 44100:
1858 		ucontrol->value.enumerated.item[0] = 1;
1859 		break;
1860 	case 48000:
1861 		ucontrol->value.enumerated.item[0] = 2;
1862 		break;
1863 	case 64000:
1864 		ucontrol->value.enumerated.item[0] = 3;
1865 		break;
1866 	case 88200:
1867 		ucontrol->value.enumerated.item[0] = 4;
1868 		break;
1869 	case 96000:
1870 		ucontrol->value.enumerated.item[0] = 5;
1871 		break;
1872 	case 128000:
1873 		ucontrol->value.enumerated.item[0] = 7;
1874 		break;
1875 	case 176400:
1876 		ucontrol->value.enumerated.item[0] = 8;
1877 		break;
1878 	case 192000:
1879 		ucontrol->value.enumerated.item[0] = 9;
1880 		break;
1881 	default:
1882 		ucontrol->value.enumerated.item[0] = 6;
1883 	}
1884 	return 0;
1885 }
1886 
1887 #define HDSP_SYSTEM_SAMPLE_RATE(xname, xindex) \
1888 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1889   .name = xname, \
1890   .index = xindex, \
1891   .access = SNDRV_CTL_ELEM_ACCESS_READ, \
1892   .info = snd_hdsp_info_system_sample_rate, \
1893   .get = snd_hdsp_get_system_sample_rate \
1894 }
1895 
1896 static int snd_hdsp_info_system_sample_rate(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1897 {
1898 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1899 	uinfo->count = 1;
1900 	return 0;
1901 }
1902 
1903 static int snd_hdsp_get_system_sample_rate(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1904 {
1905 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1906 
1907 	ucontrol->value.enumerated.item[0] = hdsp->system_sample_rate;
1908 	return 0;
1909 }
1910 
1911 #define HDSP_AUTOSYNC_SAMPLE_RATE(xname, xindex) \
1912 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1913   .name = xname, \
1914   .index = xindex, \
1915   .access = SNDRV_CTL_ELEM_ACCESS_READ, \
1916   .info = snd_hdsp_info_autosync_sample_rate, \
1917   .get = snd_hdsp_get_autosync_sample_rate \
1918 }
1919 
1920 static int snd_hdsp_info_autosync_sample_rate(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1921 {
1922 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1923 	static char *texts[] = {"32000", "44100", "48000", "64000", "88200", "96000", "None", "128000", "176400", "192000"};
1924 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1925 	uinfo->count = 1;
1926 	uinfo->value.enumerated.items = (hdsp->io_type == H9632) ? 10 : 7 ;
1927 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
1928 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
1929 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1930 	return 0;
1931 }
1932 
1933 static int snd_hdsp_get_autosync_sample_rate(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1934 {
1935 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
1936 
1937 	switch (hdsp_external_sample_rate(hdsp)) {
1938 	case 32000:
1939 		ucontrol->value.enumerated.item[0] = 0;
1940 		break;
1941 	case 44100:
1942 		ucontrol->value.enumerated.item[0] = 1;
1943 		break;
1944 	case 48000:
1945 		ucontrol->value.enumerated.item[0] = 2;
1946 		break;
1947 	case 64000:
1948 		ucontrol->value.enumerated.item[0] = 3;
1949 		break;
1950 	case 88200:
1951 		ucontrol->value.enumerated.item[0] = 4;
1952 		break;
1953 	case 96000:
1954 		ucontrol->value.enumerated.item[0] = 5;
1955 		break;
1956 	case 128000:
1957 		ucontrol->value.enumerated.item[0] = 7;
1958 		break;
1959 	case 176400:
1960 		ucontrol->value.enumerated.item[0] = 8;
1961 		break;
1962 	case 192000:
1963 		ucontrol->value.enumerated.item[0] = 9;
1964 		break;
1965 	default:
1966 		ucontrol->value.enumerated.item[0] = 6;
1967 	}
1968 	return 0;
1969 }
1970 
1971 #define HDSP_SYSTEM_CLOCK_MODE(xname, xindex) \
1972 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1973   .name = xname, \
1974   .index = xindex, \
1975   .access = SNDRV_CTL_ELEM_ACCESS_READ, \
1976   .info = snd_hdsp_info_system_clock_mode, \
1977   .get = snd_hdsp_get_system_clock_mode \
1978 }
1979 
1980 static int hdsp_system_clock_mode(struct hdsp *hdsp)
1981 {
1982 	if (hdsp->control_register & HDSP_ClockModeMaster)
1983 		return 0;
1984 	else if (hdsp_external_sample_rate(hdsp) != hdsp->system_sample_rate)
1985 			return 0;
1986 	return 1;
1987 }
1988 
1989 static int snd_hdsp_info_system_clock_mode(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1990 {
1991 	static char *texts[] = {"Master", "Slave" };
1992 
1993 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1994 	uinfo->count = 1;
1995 	uinfo->value.enumerated.items = 2;
1996 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
1997 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
1998 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1999 	return 0;
2000 }
2001 
2002 static int snd_hdsp_get_system_clock_mode(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2003 {
2004 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2005 
2006 	ucontrol->value.enumerated.item[0] = hdsp_system_clock_mode(hdsp);
2007 	return 0;
2008 }
2009 
2010 #define HDSP_CLOCK_SOURCE(xname, xindex) \
2011 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2012   .name = xname, \
2013   .index = xindex, \
2014   .info = snd_hdsp_info_clock_source, \
2015   .get = snd_hdsp_get_clock_source, \
2016   .put = snd_hdsp_put_clock_source \
2017 }
2018 
2019 static int hdsp_clock_source(struct hdsp *hdsp)
2020 {
2021 	if (hdsp->control_register & HDSP_ClockModeMaster) {
2022 		switch (hdsp->system_sample_rate) {
2023 		case 32000:
2024 			return 1;
2025 		case 44100:
2026 			return 2;
2027 		case 48000:
2028 			return 3;
2029 		case 64000:
2030 			return 4;
2031 		case 88200:
2032 			return 5;
2033 		case 96000:
2034 			return 6;
2035 		case 128000:
2036 			return 7;
2037 		case 176400:
2038 			return 8;
2039 		case 192000:
2040 			return 9;
2041 		default:
2042 			return 3;
2043 		}
2044 	} else {
2045 		return 0;
2046 	}
2047 }
2048 
2049 static int hdsp_set_clock_source(struct hdsp *hdsp, int mode)
2050 {
2051 	int rate;
2052 	switch (mode) {
2053 	case HDSP_CLOCK_SOURCE_AUTOSYNC:
2054 		if (hdsp_external_sample_rate(hdsp) != 0) {
2055 		    if (!hdsp_set_rate(hdsp, hdsp_external_sample_rate(hdsp), 1)) {
2056 			hdsp->control_register &= ~HDSP_ClockModeMaster;
2057 			hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2058 			return 0;
2059 		    }
2060 		}
2061 		return -1;
2062 	case HDSP_CLOCK_SOURCE_INTERNAL_32KHZ:
2063 		rate = 32000;
2064 		break;
2065 	case HDSP_CLOCK_SOURCE_INTERNAL_44_1KHZ:
2066 		rate = 44100;
2067 		break;
2068 	case HDSP_CLOCK_SOURCE_INTERNAL_48KHZ:
2069 		rate = 48000;
2070 		break;
2071 	case HDSP_CLOCK_SOURCE_INTERNAL_64KHZ:
2072 		rate = 64000;
2073 		break;
2074 	case HDSP_CLOCK_SOURCE_INTERNAL_88_2KHZ:
2075 		rate = 88200;
2076 		break;
2077 	case HDSP_CLOCK_SOURCE_INTERNAL_96KHZ:
2078 		rate = 96000;
2079 		break;
2080 	case HDSP_CLOCK_SOURCE_INTERNAL_128KHZ:
2081 		rate = 128000;
2082 		break;
2083 	case HDSP_CLOCK_SOURCE_INTERNAL_176_4KHZ:
2084 		rate = 176400;
2085 		break;
2086 	case HDSP_CLOCK_SOURCE_INTERNAL_192KHZ:
2087 		rate = 192000;
2088 		break;
2089 	default:
2090 		rate = 48000;
2091 	}
2092 	hdsp->control_register |= HDSP_ClockModeMaster;
2093 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2094 	hdsp_set_rate(hdsp, rate, 1);
2095 	return 0;
2096 }
2097 
2098 static int snd_hdsp_info_clock_source(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2099 {
2100 	static char *texts[] = {"AutoSync", "Internal 32.0 kHz", "Internal 44.1 kHz", "Internal 48.0 kHz", "Internal 64.0 kHz", "Internal 88.2 kHz", "Internal 96.0 kHz", "Internal 128 kHz", "Internal 176.4 kHz", "Internal 192.0 KHz" };
2101 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2102 
2103 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2104 	uinfo->count = 1;
2105 	if (hdsp->io_type == H9632)
2106 	    uinfo->value.enumerated.items = 10;
2107 	else
2108 	    uinfo->value.enumerated.items = 7;
2109 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2110 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
2111 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2112 	return 0;
2113 }
2114 
2115 static int snd_hdsp_get_clock_source(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2116 {
2117 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2118 
2119 	ucontrol->value.enumerated.item[0] = hdsp_clock_source(hdsp);
2120 	return 0;
2121 }
2122 
2123 static int snd_hdsp_put_clock_source(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2124 {
2125 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2126 	int change;
2127 	int val;
2128 
2129 	if (!snd_hdsp_use_is_exclusive(hdsp))
2130 		return -EBUSY;
2131 	val = ucontrol->value.enumerated.item[0];
2132 	if (val < 0) val = 0;
2133 	if (hdsp->io_type == H9632) {
2134 		if (val > 9)
2135 			val = 9;
2136 	} else {
2137 		if (val > 6)
2138 			val = 6;
2139 	}
2140 	spin_lock_irq(&hdsp->lock);
2141 	if (val != hdsp_clock_source(hdsp))
2142 		change = (hdsp_set_clock_source(hdsp, val) == 0) ? 1 : 0;
2143 	else
2144 		change = 0;
2145 	spin_unlock_irq(&hdsp->lock);
2146 	return change;
2147 }
2148 
2149 #define snd_hdsp_info_clock_source_lock		snd_ctl_boolean_mono_info
2150 
2151 static int snd_hdsp_get_clock_source_lock(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2152 {
2153 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2154 
2155 	ucontrol->value.integer.value[0] = hdsp->clock_source_locked;
2156 	return 0;
2157 }
2158 
2159 static int snd_hdsp_put_clock_source_lock(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2160 {
2161 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2162 	int change;
2163 
2164 	change = (int)ucontrol->value.integer.value[0] != hdsp->clock_source_locked;
2165 	if (change)
2166 		hdsp->clock_source_locked = !!ucontrol->value.integer.value[0];
2167 	return change;
2168 }
2169 
2170 #define HDSP_DA_GAIN(xname, xindex) \
2171 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2172   .name = xname, \
2173   .index = xindex, \
2174   .info = snd_hdsp_info_da_gain, \
2175   .get = snd_hdsp_get_da_gain, \
2176   .put = snd_hdsp_put_da_gain \
2177 }
2178 
2179 static int hdsp_da_gain(struct hdsp *hdsp)
2180 {
2181 	switch (hdsp->control_register & HDSP_DAGainMask) {
2182 	case HDSP_DAGainHighGain:
2183 		return 0;
2184 	case HDSP_DAGainPlus4dBu:
2185 		return 1;
2186 	case HDSP_DAGainMinus10dBV:
2187 		return 2;
2188 	default:
2189 		return 1;
2190 	}
2191 }
2192 
2193 static int hdsp_set_da_gain(struct hdsp *hdsp, int mode)
2194 {
2195 	hdsp->control_register &= ~HDSP_DAGainMask;
2196 	switch (mode) {
2197 	case 0:
2198 		hdsp->control_register |= HDSP_DAGainHighGain;
2199 		break;
2200 	case 1:
2201 		hdsp->control_register |= HDSP_DAGainPlus4dBu;
2202 		break;
2203 	case 2:
2204 		hdsp->control_register |= HDSP_DAGainMinus10dBV;
2205 		break;
2206 	default:
2207 		return -1;
2208 
2209 	}
2210 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2211 	return 0;
2212 }
2213 
2214 static int snd_hdsp_info_da_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2215 {
2216 	static char *texts[] = {"Hi Gain", "+4 dBu", "-10 dbV"};
2217 
2218 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2219 	uinfo->count = 1;
2220 	uinfo->value.enumerated.items = 3;
2221 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2222 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
2223 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2224 	return 0;
2225 }
2226 
2227 static int snd_hdsp_get_da_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2228 {
2229 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2230 
2231 	ucontrol->value.enumerated.item[0] = hdsp_da_gain(hdsp);
2232 	return 0;
2233 }
2234 
2235 static int snd_hdsp_put_da_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2236 {
2237 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2238 	int change;
2239 	int val;
2240 
2241 	if (!snd_hdsp_use_is_exclusive(hdsp))
2242 		return -EBUSY;
2243 	val = ucontrol->value.enumerated.item[0];
2244 	if (val < 0) val = 0;
2245 	if (val > 2) val = 2;
2246 	spin_lock_irq(&hdsp->lock);
2247 	if (val != hdsp_da_gain(hdsp))
2248 		change = (hdsp_set_da_gain(hdsp, val) == 0) ? 1 : 0;
2249 	else
2250 		change = 0;
2251 	spin_unlock_irq(&hdsp->lock);
2252 	return change;
2253 }
2254 
2255 #define HDSP_AD_GAIN(xname, xindex) \
2256 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2257   .name = xname, \
2258   .index = xindex, \
2259   .info = snd_hdsp_info_ad_gain, \
2260   .get = snd_hdsp_get_ad_gain, \
2261   .put = snd_hdsp_put_ad_gain \
2262 }
2263 
2264 static int hdsp_ad_gain(struct hdsp *hdsp)
2265 {
2266 	switch (hdsp->control_register & HDSP_ADGainMask) {
2267 	case HDSP_ADGainMinus10dBV:
2268 		return 0;
2269 	case HDSP_ADGainPlus4dBu:
2270 		return 1;
2271 	case HDSP_ADGainLowGain:
2272 		return 2;
2273 	default:
2274 		return 1;
2275 	}
2276 }
2277 
2278 static int hdsp_set_ad_gain(struct hdsp *hdsp, int mode)
2279 {
2280 	hdsp->control_register &= ~HDSP_ADGainMask;
2281 	switch (mode) {
2282 	case 0:
2283 		hdsp->control_register |= HDSP_ADGainMinus10dBV;
2284 		break;
2285 	case 1:
2286 		hdsp->control_register |= HDSP_ADGainPlus4dBu;
2287 		break;
2288 	case 2:
2289 		hdsp->control_register |= HDSP_ADGainLowGain;
2290 		break;
2291 	default:
2292 		return -1;
2293 
2294 	}
2295 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2296 	return 0;
2297 }
2298 
2299 static int snd_hdsp_info_ad_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2300 {
2301 	static char *texts[] = {"-10 dBV", "+4 dBu", "Lo Gain"};
2302 
2303 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2304 	uinfo->count = 1;
2305 	uinfo->value.enumerated.items = 3;
2306 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2307 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
2308 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2309 	return 0;
2310 }
2311 
2312 static int snd_hdsp_get_ad_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2313 {
2314 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2315 
2316 	ucontrol->value.enumerated.item[0] = hdsp_ad_gain(hdsp);
2317 	return 0;
2318 }
2319 
2320 static int snd_hdsp_put_ad_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2321 {
2322 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2323 	int change;
2324 	int val;
2325 
2326 	if (!snd_hdsp_use_is_exclusive(hdsp))
2327 		return -EBUSY;
2328 	val = ucontrol->value.enumerated.item[0];
2329 	if (val < 0) val = 0;
2330 	if (val > 2) val = 2;
2331 	spin_lock_irq(&hdsp->lock);
2332 	if (val != hdsp_ad_gain(hdsp))
2333 		change = (hdsp_set_ad_gain(hdsp, val) == 0) ? 1 : 0;
2334 	else
2335 		change = 0;
2336 	spin_unlock_irq(&hdsp->lock);
2337 	return change;
2338 }
2339 
2340 #define HDSP_PHONE_GAIN(xname, xindex) \
2341 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2342   .name = xname, \
2343   .index = xindex, \
2344   .info = snd_hdsp_info_phone_gain, \
2345   .get = snd_hdsp_get_phone_gain, \
2346   .put = snd_hdsp_put_phone_gain \
2347 }
2348 
2349 static int hdsp_phone_gain(struct hdsp *hdsp)
2350 {
2351 	switch (hdsp->control_register & HDSP_PhoneGainMask) {
2352 	case HDSP_PhoneGain0dB:
2353 		return 0;
2354 	case HDSP_PhoneGainMinus6dB:
2355 		return 1;
2356 	case HDSP_PhoneGainMinus12dB:
2357 		return 2;
2358 	default:
2359 		return 0;
2360 	}
2361 }
2362 
2363 static int hdsp_set_phone_gain(struct hdsp *hdsp, int mode)
2364 {
2365 	hdsp->control_register &= ~HDSP_PhoneGainMask;
2366 	switch (mode) {
2367 	case 0:
2368 		hdsp->control_register |= HDSP_PhoneGain0dB;
2369 		break;
2370 	case 1:
2371 		hdsp->control_register |= HDSP_PhoneGainMinus6dB;
2372 		break;
2373 	case 2:
2374 		hdsp->control_register |= HDSP_PhoneGainMinus12dB;
2375 		break;
2376 	default:
2377 		return -1;
2378 
2379 	}
2380 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2381 	return 0;
2382 }
2383 
2384 static int snd_hdsp_info_phone_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2385 {
2386 	static char *texts[] = {"0 dB", "-6 dB", "-12 dB"};
2387 
2388 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2389 	uinfo->count = 1;
2390 	uinfo->value.enumerated.items = 3;
2391 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2392 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
2393 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2394 	return 0;
2395 }
2396 
2397 static int snd_hdsp_get_phone_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2398 {
2399 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2400 
2401 	ucontrol->value.enumerated.item[0] = hdsp_phone_gain(hdsp);
2402 	return 0;
2403 }
2404 
2405 static int snd_hdsp_put_phone_gain(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2406 {
2407 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2408 	int change;
2409 	int val;
2410 
2411 	if (!snd_hdsp_use_is_exclusive(hdsp))
2412 		return -EBUSY;
2413 	val = ucontrol->value.enumerated.item[0];
2414 	if (val < 0) val = 0;
2415 	if (val > 2) val = 2;
2416 	spin_lock_irq(&hdsp->lock);
2417 	if (val != hdsp_phone_gain(hdsp))
2418 		change = (hdsp_set_phone_gain(hdsp, val) == 0) ? 1 : 0;
2419 	else
2420 		change = 0;
2421 	spin_unlock_irq(&hdsp->lock);
2422 	return change;
2423 }
2424 
2425 #define HDSP_XLR_BREAKOUT_CABLE(xname, xindex) \
2426 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2427   .name = xname, \
2428   .index = xindex, \
2429   .info = snd_hdsp_info_xlr_breakout_cable, \
2430   .get = snd_hdsp_get_xlr_breakout_cable, \
2431   .put = snd_hdsp_put_xlr_breakout_cable \
2432 }
2433 
2434 static int hdsp_xlr_breakout_cable(struct hdsp *hdsp)
2435 {
2436 	if (hdsp->control_register & HDSP_XLRBreakoutCable)
2437 		return 1;
2438 	return 0;
2439 }
2440 
2441 static int hdsp_set_xlr_breakout_cable(struct hdsp *hdsp, int mode)
2442 {
2443 	if (mode)
2444 		hdsp->control_register |= HDSP_XLRBreakoutCable;
2445 	else
2446 		hdsp->control_register &= ~HDSP_XLRBreakoutCable;
2447 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2448 	return 0;
2449 }
2450 
2451 #define snd_hdsp_info_xlr_breakout_cable	snd_ctl_boolean_mono_info
2452 
2453 static int snd_hdsp_get_xlr_breakout_cable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2454 {
2455 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2456 
2457 	ucontrol->value.enumerated.item[0] = hdsp_xlr_breakout_cable(hdsp);
2458 	return 0;
2459 }
2460 
2461 static int snd_hdsp_put_xlr_breakout_cable(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2462 {
2463 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2464 	int change;
2465 	int val;
2466 
2467 	if (!snd_hdsp_use_is_exclusive(hdsp))
2468 		return -EBUSY;
2469 	val = ucontrol->value.integer.value[0] & 1;
2470 	spin_lock_irq(&hdsp->lock);
2471 	change = (int)val != hdsp_xlr_breakout_cable(hdsp);
2472 	hdsp_set_xlr_breakout_cable(hdsp, val);
2473 	spin_unlock_irq(&hdsp->lock);
2474 	return change;
2475 }
2476 
2477 /* (De)activates old RME Analog Extension Board
2478    These are connected to the internal ADAT connector
2479    Switching this on desactivates external ADAT
2480 */
2481 #define HDSP_AEB(xname, xindex) \
2482 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2483   .name = xname, \
2484   .index = xindex, \
2485   .info = snd_hdsp_info_aeb, \
2486   .get = snd_hdsp_get_aeb, \
2487   .put = snd_hdsp_put_aeb \
2488 }
2489 
2490 static int hdsp_aeb(struct hdsp *hdsp)
2491 {
2492 	if (hdsp->control_register & HDSP_AnalogExtensionBoard)
2493 		return 1;
2494 	return 0;
2495 }
2496 
2497 static int hdsp_set_aeb(struct hdsp *hdsp, int mode)
2498 {
2499 	if (mode)
2500 		hdsp->control_register |= HDSP_AnalogExtensionBoard;
2501 	else
2502 		hdsp->control_register &= ~HDSP_AnalogExtensionBoard;
2503 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2504 	return 0;
2505 }
2506 
2507 #define snd_hdsp_info_aeb		snd_ctl_boolean_mono_info
2508 
2509 static int snd_hdsp_get_aeb(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_aeb(hdsp);
2514 	return 0;
2515 }
2516 
2517 static int snd_hdsp_put_aeb(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2518 {
2519 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2520 	int change;
2521 	int val;
2522 
2523 	if (!snd_hdsp_use_is_exclusive(hdsp))
2524 		return -EBUSY;
2525 	val = ucontrol->value.integer.value[0] & 1;
2526 	spin_lock_irq(&hdsp->lock);
2527 	change = (int)val != hdsp_aeb(hdsp);
2528 	hdsp_set_aeb(hdsp, val);
2529 	spin_unlock_irq(&hdsp->lock);
2530 	return change;
2531 }
2532 
2533 #define HDSP_PREF_SYNC_REF(xname, xindex) \
2534 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2535   .name = xname, \
2536   .index = xindex, \
2537   .info = snd_hdsp_info_pref_sync_ref, \
2538   .get = snd_hdsp_get_pref_sync_ref, \
2539   .put = snd_hdsp_put_pref_sync_ref \
2540 }
2541 
2542 static int hdsp_pref_sync_ref(struct hdsp *hdsp)
2543 {
2544 	/* Notice that this looks at the requested sync source,
2545 	   not the one actually in use.
2546 	*/
2547 
2548 	switch (hdsp->control_register & HDSP_SyncRefMask) {
2549 	case HDSP_SyncRef_ADAT1:
2550 		return HDSP_SYNC_FROM_ADAT1;
2551 	case HDSP_SyncRef_ADAT2:
2552 		return HDSP_SYNC_FROM_ADAT2;
2553 	case HDSP_SyncRef_ADAT3:
2554 		return HDSP_SYNC_FROM_ADAT3;
2555 	case HDSP_SyncRef_SPDIF:
2556 		return HDSP_SYNC_FROM_SPDIF;
2557 	case HDSP_SyncRef_WORD:
2558 		return HDSP_SYNC_FROM_WORD;
2559 	case HDSP_SyncRef_ADAT_SYNC:
2560 		return HDSP_SYNC_FROM_ADAT_SYNC;
2561 	default:
2562 		return HDSP_SYNC_FROM_WORD;
2563 	}
2564 	return 0;
2565 }
2566 
2567 static int hdsp_set_pref_sync_ref(struct hdsp *hdsp, int pref)
2568 {
2569 	hdsp->control_register &= ~HDSP_SyncRefMask;
2570 	switch (pref) {
2571 	case HDSP_SYNC_FROM_ADAT1:
2572 		hdsp->control_register &= ~HDSP_SyncRefMask; /* clear SyncRef bits */
2573 		break;
2574 	case HDSP_SYNC_FROM_ADAT2:
2575 		hdsp->control_register |= HDSP_SyncRef_ADAT2;
2576 		break;
2577 	case HDSP_SYNC_FROM_ADAT3:
2578 		hdsp->control_register |= HDSP_SyncRef_ADAT3;
2579 		break;
2580 	case HDSP_SYNC_FROM_SPDIF:
2581 		hdsp->control_register |= HDSP_SyncRef_SPDIF;
2582 		break;
2583 	case HDSP_SYNC_FROM_WORD:
2584 		hdsp->control_register |= HDSP_SyncRef_WORD;
2585 		break;
2586 	case HDSP_SYNC_FROM_ADAT_SYNC:
2587 		hdsp->control_register |= HDSP_SyncRef_ADAT_SYNC;
2588 		break;
2589 	default:
2590 		return -1;
2591 	}
2592 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2593 	return 0;
2594 }
2595 
2596 static int snd_hdsp_info_pref_sync_ref(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2597 {
2598 	static char *texts[] = {"Word", "IEC958", "ADAT1", "ADAT Sync", "ADAT2", "ADAT3" };
2599 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2600 
2601 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2602 	uinfo->count = 1;
2603 
2604 	switch (hdsp->io_type) {
2605 	case Digiface:
2606 	case H9652:
2607 		uinfo->value.enumerated.items = 6;
2608 		break;
2609 	case Multiface:
2610 		uinfo->value.enumerated.items = 4;
2611 		break;
2612 	case H9632:
2613 		uinfo->value.enumerated.items = 3;
2614 		break;
2615 	default:
2616 		uinfo->value.enumerated.items = 0;
2617 		break;
2618 	}
2619 
2620 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2621 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
2622 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2623 	return 0;
2624 }
2625 
2626 static int snd_hdsp_get_pref_sync_ref(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2627 {
2628 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2629 
2630 	ucontrol->value.enumerated.item[0] = hdsp_pref_sync_ref(hdsp);
2631 	return 0;
2632 }
2633 
2634 static int snd_hdsp_put_pref_sync_ref(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2635 {
2636 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2637 	int change, max;
2638 	unsigned int val;
2639 
2640 	if (!snd_hdsp_use_is_exclusive(hdsp))
2641 		return -EBUSY;
2642 
2643 	switch (hdsp->io_type) {
2644 	case Digiface:
2645 	case H9652:
2646 		max = 6;
2647 		break;
2648 	case Multiface:
2649 		max = 4;
2650 		break;
2651 	case H9632:
2652 		max = 3;
2653 		break;
2654 	default:
2655 		return -EIO;
2656 	}
2657 
2658 	val = ucontrol->value.enumerated.item[0] % max;
2659 	spin_lock_irq(&hdsp->lock);
2660 	change = (int)val != hdsp_pref_sync_ref(hdsp);
2661 	hdsp_set_pref_sync_ref(hdsp, val);
2662 	spin_unlock_irq(&hdsp->lock);
2663 	return change;
2664 }
2665 
2666 #define HDSP_AUTOSYNC_REF(xname, xindex) \
2667 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2668   .name = xname, \
2669   .index = xindex, \
2670   .access = SNDRV_CTL_ELEM_ACCESS_READ, \
2671   .info = snd_hdsp_info_autosync_ref, \
2672   .get = snd_hdsp_get_autosync_ref, \
2673 }
2674 
2675 static int hdsp_autosync_ref(struct hdsp *hdsp)
2676 {
2677 	/* This looks at the autosync selected sync reference */
2678 	unsigned int status2 = hdsp_read(hdsp, HDSP_status2Register);
2679 
2680 	switch (status2 & HDSP_SelSyncRefMask) {
2681 	case HDSP_SelSyncRef_WORD:
2682 		return HDSP_AUTOSYNC_FROM_WORD;
2683 	case HDSP_SelSyncRef_ADAT_SYNC:
2684 		return HDSP_AUTOSYNC_FROM_ADAT_SYNC;
2685 	case HDSP_SelSyncRef_SPDIF:
2686 		return HDSP_AUTOSYNC_FROM_SPDIF;
2687 	case HDSP_SelSyncRefMask:
2688 		return HDSP_AUTOSYNC_FROM_NONE;
2689 	case HDSP_SelSyncRef_ADAT1:
2690 		return HDSP_AUTOSYNC_FROM_ADAT1;
2691 	case HDSP_SelSyncRef_ADAT2:
2692 		return HDSP_AUTOSYNC_FROM_ADAT2;
2693 	case HDSP_SelSyncRef_ADAT3:
2694 		return HDSP_AUTOSYNC_FROM_ADAT3;
2695 	default:
2696 		return HDSP_AUTOSYNC_FROM_WORD;
2697 	}
2698 	return 0;
2699 }
2700 
2701 static int snd_hdsp_info_autosync_ref(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2702 {
2703 	static char *texts[] = {"Word", "ADAT Sync", "IEC958", "None", "ADAT1", "ADAT2", "ADAT3" };
2704 
2705 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2706 	uinfo->count = 1;
2707 	uinfo->value.enumerated.items = 7;
2708 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2709 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
2710 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2711 	return 0;
2712 }
2713 
2714 static int snd_hdsp_get_autosync_ref(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2715 {
2716 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2717 
2718 	ucontrol->value.enumerated.item[0] = hdsp_autosync_ref(hdsp);
2719 	return 0;
2720 }
2721 
2722 #define HDSP_LINE_OUT(xname, xindex) \
2723 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2724   .name = xname, \
2725   .index = xindex, \
2726   .info = snd_hdsp_info_line_out, \
2727   .get = snd_hdsp_get_line_out, \
2728   .put = snd_hdsp_put_line_out \
2729 }
2730 
2731 static int hdsp_line_out(struct hdsp *hdsp)
2732 {
2733 	return (hdsp->control_register & HDSP_LineOut) ? 1 : 0;
2734 }
2735 
2736 static int hdsp_set_line_output(struct hdsp *hdsp, int out)
2737 {
2738 	if (out)
2739 		hdsp->control_register |= HDSP_LineOut;
2740 	else
2741 		hdsp->control_register &= ~HDSP_LineOut;
2742 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
2743 	return 0;
2744 }
2745 
2746 #define snd_hdsp_info_line_out		snd_ctl_boolean_mono_info
2747 
2748 static int snd_hdsp_get_line_out(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2749 {
2750 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2751 
2752 	spin_lock_irq(&hdsp->lock);
2753 	ucontrol->value.integer.value[0] = hdsp_line_out(hdsp);
2754 	spin_unlock_irq(&hdsp->lock);
2755 	return 0;
2756 }
2757 
2758 static int snd_hdsp_put_line_out(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2759 {
2760 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2761 	int change;
2762 	unsigned int val;
2763 
2764 	if (!snd_hdsp_use_is_exclusive(hdsp))
2765 		return -EBUSY;
2766 	val = ucontrol->value.integer.value[0] & 1;
2767 	spin_lock_irq(&hdsp->lock);
2768 	change = (int)val != hdsp_line_out(hdsp);
2769 	hdsp_set_line_output(hdsp, val);
2770 	spin_unlock_irq(&hdsp->lock);
2771 	return change;
2772 }
2773 
2774 #define HDSP_PRECISE_POINTER(xname, xindex) \
2775 { .iface = SNDRV_CTL_ELEM_IFACE_CARD, \
2776   .name = xname, \
2777   .index = xindex, \
2778   .info = snd_hdsp_info_precise_pointer, \
2779   .get = snd_hdsp_get_precise_pointer, \
2780   .put = snd_hdsp_put_precise_pointer \
2781 }
2782 
2783 static int hdsp_set_precise_pointer(struct hdsp *hdsp, int precise)
2784 {
2785 	if (precise)
2786 		hdsp->precise_ptr = 1;
2787 	else
2788 		hdsp->precise_ptr = 0;
2789 	return 0;
2790 }
2791 
2792 #define snd_hdsp_info_precise_pointer		snd_ctl_boolean_mono_info
2793 
2794 static int snd_hdsp_get_precise_pointer(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2795 {
2796 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2797 
2798 	spin_lock_irq(&hdsp->lock);
2799 	ucontrol->value.integer.value[0] = hdsp->precise_ptr;
2800 	spin_unlock_irq(&hdsp->lock);
2801 	return 0;
2802 }
2803 
2804 static int snd_hdsp_put_precise_pointer(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2805 {
2806 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2807 	int change;
2808 	unsigned int val;
2809 
2810 	if (!snd_hdsp_use_is_exclusive(hdsp))
2811 		return -EBUSY;
2812 	val = ucontrol->value.integer.value[0] & 1;
2813 	spin_lock_irq(&hdsp->lock);
2814 	change = (int)val != hdsp->precise_ptr;
2815 	hdsp_set_precise_pointer(hdsp, val);
2816 	spin_unlock_irq(&hdsp->lock);
2817 	return change;
2818 }
2819 
2820 #define HDSP_USE_MIDI_TASKLET(xname, xindex) \
2821 { .iface = SNDRV_CTL_ELEM_IFACE_CARD, \
2822   .name = xname, \
2823   .index = xindex, \
2824   .info = snd_hdsp_info_use_midi_tasklet, \
2825   .get = snd_hdsp_get_use_midi_tasklet, \
2826   .put = snd_hdsp_put_use_midi_tasklet \
2827 }
2828 
2829 static int hdsp_set_use_midi_tasklet(struct hdsp *hdsp, int use_tasklet)
2830 {
2831 	if (use_tasklet)
2832 		hdsp->use_midi_tasklet = 1;
2833 	else
2834 		hdsp->use_midi_tasklet = 0;
2835 	return 0;
2836 }
2837 
2838 #define snd_hdsp_info_use_midi_tasklet		snd_ctl_boolean_mono_info
2839 
2840 static int snd_hdsp_get_use_midi_tasklet(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2841 {
2842 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2843 
2844 	spin_lock_irq(&hdsp->lock);
2845 	ucontrol->value.integer.value[0] = hdsp->use_midi_tasklet;
2846 	spin_unlock_irq(&hdsp->lock);
2847 	return 0;
2848 }
2849 
2850 static int snd_hdsp_put_use_midi_tasklet(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2851 {
2852 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2853 	int change;
2854 	unsigned int val;
2855 
2856 	if (!snd_hdsp_use_is_exclusive(hdsp))
2857 		return -EBUSY;
2858 	val = ucontrol->value.integer.value[0] & 1;
2859 	spin_lock_irq(&hdsp->lock);
2860 	change = (int)val != hdsp->use_midi_tasklet;
2861 	hdsp_set_use_midi_tasklet(hdsp, val);
2862 	spin_unlock_irq(&hdsp->lock);
2863 	return change;
2864 }
2865 
2866 #define HDSP_MIXER(xname, xindex) \
2867 { .iface = SNDRV_CTL_ELEM_IFACE_HWDEP, \
2868   .name = xname, \
2869   .index = xindex, \
2870   .device = 0, \
2871   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | \
2872 		 SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
2873   .info = snd_hdsp_info_mixer, \
2874   .get = snd_hdsp_get_mixer, \
2875   .put = snd_hdsp_put_mixer \
2876 }
2877 
2878 static int snd_hdsp_info_mixer(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2879 {
2880 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2881 	uinfo->count = 3;
2882 	uinfo->value.integer.min = 0;
2883 	uinfo->value.integer.max = 65536;
2884 	uinfo->value.integer.step = 1;
2885 	return 0;
2886 }
2887 
2888 static int snd_hdsp_get_mixer(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2889 {
2890 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2891 	int source;
2892 	int destination;
2893 	int addr;
2894 
2895 	source = ucontrol->value.integer.value[0];
2896 	destination = ucontrol->value.integer.value[1];
2897 
2898 	if (source >= hdsp->max_channels)
2899 		addr = hdsp_playback_to_output_key(hdsp,source-hdsp->max_channels,destination);
2900 	else
2901 		addr = hdsp_input_to_output_key(hdsp,source, destination);
2902 
2903 	spin_lock_irq(&hdsp->lock);
2904 	ucontrol->value.integer.value[2] = hdsp_read_gain (hdsp, addr);
2905 	spin_unlock_irq(&hdsp->lock);
2906 	return 0;
2907 }
2908 
2909 static int snd_hdsp_put_mixer(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2910 {
2911 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2912 	int change;
2913 	int source;
2914 	int destination;
2915 	int gain;
2916 	int addr;
2917 
2918 	if (!snd_hdsp_use_is_exclusive(hdsp))
2919 		return -EBUSY;
2920 
2921 	source = ucontrol->value.integer.value[0];
2922 	destination = ucontrol->value.integer.value[1];
2923 
2924 	if (source >= hdsp->max_channels)
2925 		addr = hdsp_playback_to_output_key(hdsp,source-hdsp->max_channels, destination);
2926 	else
2927 		addr = hdsp_input_to_output_key(hdsp,source, destination);
2928 
2929 	gain = ucontrol->value.integer.value[2];
2930 
2931 	spin_lock_irq(&hdsp->lock);
2932 	change = gain != hdsp_read_gain(hdsp, addr);
2933 	if (change)
2934 		hdsp_write_gain(hdsp, addr, gain);
2935 	spin_unlock_irq(&hdsp->lock);
2936 	return change;
2937 }
2938 
2939 #define HDSP_WC_SYNC_CHECK(xname, xindex) \
2940 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2941   .name = xname, \
2942   .index = xindex, \
2943   .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
2944   .info = snd_hdsp_info_sync_check, \
2945   .get = snd_hdsp_get_wc_sync_check \
2946 }
2947 
2948 static int snd_hdsp_info_sync_check(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2949 {
2950 	static char *texts[] = {"No Lock", "Lock", "Sync" };
2951 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2952 	uinfo->count = 1;
2953 	uinfo->value.enumerated.items = 3;
2954 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2955 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
2956 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2957 	return 0;
2958 }
2959 
2960 static int hdsp_wc_sync_check(struct hdsp *hdsp)
2961 {
2962 	int status2 = hdsp_read(hdsp, HDSP_status2Register);
2963 	if (status2 & HDSP_wc_lock) {
2964 		if (status2 & HDSP_wc_sync)
2965 			return 2;
2966 		else
2967 			 return 1;
2968 	} else
2969 		return 0;
2970 	return 0;
2971 }
2972 
2973 static int snd_hdsp_get_wc_sync_check(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2974 {
2975 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
2976 
2977 	ucontrol->value.enumerated.item[0] = hdsp_wc_sync_check(hdsp);
2978 	return 0;
2979 }
2980 
2981 #define HDSP_SPDIF_SYNC_CHECK(xname, xindex) \
2982 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
2983   .name = xname, \
2984   .index = xindex, \
2985   .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
2986   .info = snd_hdsp_info_sync_check, \
2987   .get = snd_hdsp_get_spdif_sync_check \
2988 }
2989 
2990 static int hdsp_spdif_sync_check(struct hdsp *hdsp)
2991 {
2992 	int status = hdsp_read(hdsp, HDSP_statusRegister);
2993 	if (status & HDSP_SPDIFErrorFlag)
2994 		return 0;
2995 	else {
2996 		if (status & HDSP_SPDIFSync)
2997 			return 2;
2998 		else
2999 			return 1;
3000 	}
3001 	return 0;
3002 }
3003 
3004 static int snd_hdsp_get_spdif_sync_check(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
3005 {
3006 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
3007 
3008 	ucontrol->value.enumerated.item[0] = hdsp_spdif_sync_check(hdsp);
3009 	return 0;
3010 }
3011 
3012 #define HDSP_ADATSYNC_SYNC_CHECK(xname, xindex) \
3013 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
3014   .name = xname, \
3015   .index = xindex, \
3016   .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
3017   .info = snd_hdsp_info_sync_check, \
3018   .get = snd_hdsp_get_adatsync_sync_check \
3019 }
3020 
3021 static int hdsp_adatsync_sync_check(struct hdsp *hdsp)
3022 {
3023 	int status = hdsp_read(hdsp, HDSP_statusRegister);
3024 	if (status & HDSP_TimecodeLock) {
3025 		if (status & HDSP_TimecodeSync)
3026 			return 2;
3027 		else
3028 			return 1;
3029 	} else
3030 		return 0;
3031 }
3032 
3033 static int snd_hdsp_get_adatsync_sync_check(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
3034 {
3035 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
3036 
3037 	ucontrol->value.enumerated.item[0] = hdsp_adatsync_sync_check(hdsp);
3038 	return 0;
3039 }
3040 
3041 #define HDSP_ADAT_SYNC_CHECK \
3042 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
3043   .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
3044   .info = snd_hdsp_info_sync_check, \
3045   .get = snd_hdsp_get_adat_sync_check \
3046 }
3047 
3048 static int hdsp_adat_sync_check(struct hdsp *hdsp, int idx)
3049 {
3050 	int status = hdsp_read(hdsp, HDSP_statusRegister);
3051 
3052 	if (status & (HDSP_Lock0>>idx)) {
3053 		if (status & (HDSP_Sync0>>idx))
3054 			return 2;
3055 		else
3056 			return 1;
3057 	} else
3058 		return 0;
3059 }
3060 
3061 static int snd_hdsp_get_adat_sync_check(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
3062 {
3063 	int offset;
3064 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
3065 
3066 	offset = ucontrol->id.index - 1;
3067 	snd_BUG_ON(offset < 0);
3068 
3069 	switch (hdsp->io_type) {
3070 	case Digiface:
3071 	case H9652:
3072 		if (offset >= 3)
3073 			return -EINVAL;
3074 		break;
3075 	case Multiface:
3076 	case H9632:
3077 		if (offset >= 1)
3078 			return -EINVAL;
3079 		break;
3080 	default:
3081 		return -EIO;
3082 	}
3083 
3084 	ucontrol->value.enumerated.item[0] = hdsp_adat_sync_check(hdsp, offset);
3085 	return 0;
3086 }
3087 
3088 #define HDSP_DDS_OFFSET(xname, xindex) \
3089 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
3090   .name = xname, \
3091   .index = xindex, \
3092   .info = snd_hdsp_info_dds_offset, \
3093   .get = snd_hdsp_get_dds_offset, \
3094   .put = snd_hdsp_put_dds_offset \
3095 }
3096 
3097 static int hdsp_dds_offset(struct hdsp *hdsp)
3098 {
3099 	u64 n;
3100 	unsigned int dds_value = hdsp->dds_value;
3101 	int system_sample_rate = hdsp->system_sample_rate;
3102 
3103 	if (!dds_value)
3104 		return 0;
3105 
3106 	n = DDS_NUMERATOR;
3107 	/*
3108 	 * dds_value = n / rate
3109 	 * rate = n / dds_value
3110 	 */
3111 	n = div_u64(n, dds_value);
3112 	if (system_sample_rate >= 112000)
3113 		n *= 4;
3114 	else if (system_sample_rate >= 56000)
3115 		n *= 2;
3116 	return ((int)n) - system_sample_rate;
3117 }
3118 
3119 static int hdsp_set_dds_offset(struct hdsp *hdsp, int offset_hz)
3120 {
3121 	int rate = hdsp->system_sample_rate + offset_hz;
3122 	hdsp_set_dds_value(hdsp, rate);
3123 	return 0;
3124 }
3125 
3126 static int snd_hdsp_info_dds_offset(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
3127 {
3128 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
3129 	uinfo->count = 1;
3130 	uinfo->value.integer.min = -5000;
3131 	uinfo->value.integer.max = 5000;
3132 	return 0;
3133 }
3134 
3135 static int snd_hdsp_get_dds_offset(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
3136 {
3137 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
3138 
3139 	ucontrol->value.enumerated.item[0] = hdsp_dds_offset(hdsp);
3140 	return 0;
3141 }
3142 
3143 static int snd_hdsp_put_dds_offset(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
3144 {
3145 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
3146 	int change;
3147 	int val;
3148 
3149 	if (!snd_hdsp_use_is_exclusive(hdsp))
3150 		return -EBUSY;
3151 	val = ucontrol->value.enumerated.item[0];
3152 	spin_lock_irq(&hdsp->lock);
3153 	if (val != hdsp_dds_offset(hdsp))
3154 		change = (hdsp_set_dds_offset(hdsp, val) == 0) ? 1 : 0;
3155 	else
3156 		change = 0;
3157 	spin_unlock_irq(&hdsp->lock);
3158 	return change;
3159 }
3160 
3161 static struct snd_kcontrol_new snd_hdsp_9632_controls[] = {
3162 HDSP_DA_GAIN("DA Gain", 0),
3163 HDSP_AD_GAIN("AD Gain", 0),
3164 HDSP_PHONE_GAIN("Phones Gain", 0),
3165 HDSP_XLR_BREAKOUT_CABLE("XLR Breakout Cable", 0),
3166 HDSP_DDS_OFFSET("DDS Sample Rate Offset", 0)
3167 };
3168 
3169 static struct snd_kcontrol_new snd_hdsp_controls[] = {
3170 {
3171 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
3172 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
3173 	.info =		snd_hdsp_control_spdif_info,
3174 	.get =		snd_hdsp_control_spdif_get,
3175 	.put =		snd_hdsp_control_spdif_put,
3176 },
3177 {
3178 	.access =	SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
3179 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
3180 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
3181 	.info =		snd_hdsp_control_spdif_stream_info,
3182 	.get =		snd_hdsp_control_spdif_stream_get,
3183 	.put =		snd_hdsp_control_spdif_stream_put,
3184 },
3185 {
3186 	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
3187 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
3188 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
3189 	.info =		snd_hdsp_control_spdif_mask_info,
3190 	.get =		snd_hdsp_control_spdif_mask_get,
3191 	.private_value = IEC958_AES0_NONAUDIO |
3192   			 IEC958_AES0_PROFESSIONAL |
3193 			 IEC958_AES0_CON_EMPHASIS,
3194 },
3195 {
3196 	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
3197 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
3198 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
3199 	.info =		snd_hdsp_control_spdif_mask_info,
3200 	.get =		snd_hdsp_control_spdif_mask_get,
3201 	.private_value = IEC958_AES0_NONAUDIO |
3202 			 IEC958_AES0_PROFESSIONAL |
3203 			 IEC958_AES0_PRO_EMPHASIS,
3204 },
3205 HDSP_MIXER("Mixer", 0),
3206 HDSP_SPDIF_IN("IEC958 Input Connector", 0),
3207 HDSP_SPDIF_OUT("IEC958 Output also on ADAT1", 0),
3208 HDSP_SPDIF_PROFESSIONAL("IEC958 Professional Bit", 0),
3209 HDSP_SPDIF_EMPHASIS("IEC958 Emphasis Bit", 0),
3210 HDSP_SPDIF_NON_AUDIO("IEC958 Non-audio Bit", 0),
3211 /* 'Sample Clock Source' complies with the alsa control naming scheme */
3212 HDSP_CLOCK_SOURCE("Sample Clock Source", 0),
3213 {
3214 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
3215 	.name = "Sample Clock Source Locking",
3216 	.info = snd_hdsp_info_clock_source_lock,
3217 	.get = snd_hdsp_get_clock_source_lock,
3218 	.put = snd_hdsp_put_clock_source_lock,
3219 },
3220 HDSP_SYSTEM_CLOCK_MODE("System Clock Mode", 0),
3221 HDSP_PREF_SYNC_REF("Preferred Sync Reference", 0),
3222 HDSP_AUTOSYNC_REF("AutoSync Reference", 0),
3223 HDSP_SPDIF_SAMPLE_RATE("SPDIF Sample Rate", 0),
3224 HDSP_SYSTEM_SAMPLE_RATE("System Sample Rate", 0),
3225 /* 'External Rate' complies with the alsa control naming scheme */
3226 HDSP_AUTOSYNC_SAMPLE_RATE("External Rate", 0),
3227 HDSP_WC_SYNC_CHECK("Word Clock Lock Status", 0),
3228 HDSP_SPDIF_SYNC_CHECK("SPDIF Lock Status", 0),
3229 HDSP_ADATSYNC_SYNC_CHECK("ADAT Sync Lock Status", 0),
3230 HDSP_LINE_OUT("Line Out", 0),
3231 HDSP_PRECISE_POINTER("Precise Pointer", 0),
3232 HDSP_USE_MIDI_TASKLET("Use Midi Tasklet", 0),
3233 };
3234 
3235 static struct snd_kcontrol_new snd_hdsp_96xx_aeb = HDSP_AEB("Analog Extension Board", 0);
3236 static struct snd_kcontrol_new snd_hdsp_adat_sync_check = HDSP_ADAT_SYNC_CHECK;
3237 
3238 static int snd_hdsp_create_controls(struct snd_card *card, struct hdsp *hdsp)
3239 {
3240 	unsigned int idx;
3241 	int err;
3242 	struct snd_kcontrol *kctl;
3243 
3244 	for (idx = 0; idx < ARRAY_SIZE(snd_hdsp_controls); idx++) {
3245 		if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_hdsp_controls[idx], hdsp))) < 0)
3246 			return err;
3247 		if (idx == 1)	/* IEC958 (S/PDIF) Stream */
3248 			hdsp->spdif_ctl = kctl;
3249 	}
3250 
3251 	/* ADAT SyncCheck status */
3252 	snd_hdsp_adat_sync_check.name = "ADAT Lock Status";
3253 	snd_hdsp_adat_sync_check.index = 1;
3254 	if ((err = snd_ctl_add (card, kctl = snd_ctl_new1(&snd_hdsp_adat_sync_check, hdsp))))
3255 		return err;
3256 	if (hdsp->io_type == Digiface || hdsp->io_type == H9652) {
3257 		for (idx = 1; idx < 3; ++idx) {
3258 			snd_hdsp_adat_sync_check.index = idx+1;
3259 			if ((err = snd_ctl_add (card, kctl = snd_ctl_new1(&snd_hdsp_adat_sync_check, hdsp))))
3260 				return err;
3261 		}
3262 	}
3263 
3264 	/* DA, AD and Phone gain and XLR breakout cable controls for H9632 cards */
3265 	if (hdsp->io_type == H9632) {
3266 		for (idx = 0; idx < ARRAY_SIZE(snd_hdsp_9632_controls); idx++) {
3267 			if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_hdsp_9632_controls[idx], hdsp))) < 0)
3268 				return err;
3269 		}
3270 	}
3271 
3272 	/* AEB control for H96xx card */
3273 	if (hdsp->io_type == H9632 || hdsp->io_type == H9652) {
3274 		if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_hdsp_96xx_aeb, hdsp))) < 0)
3275 				return err;
3276 	}
3277 
3278 	return 0;
3279 }
3280 
3281 /*------------------------------------------------------------
3282    /proc interface
3283  ------------------------------------------------------------*/
3284 
3285 static void
3286 snd_hdsp_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
3287 {
3288 	struct hdsp *hdsp = (struct hdsp *) entry->private_data;
3289 	unsigned int status;
3290 	unsigned int status2;
3291 	char *pref_sync_ref;
3292 	char *autosync_ref;
3293 	char *system_clock_mode;
3294 	char *clock_source;
3295 	int x;
3296 
3297 	status = hdsp_read(hdsp, HDSP_statusRegister);
3298 	status2 = hdsp_read(hdsp, HDSP_status2Register);
3299 
3300 	snd_iprintf(buffer, "%s (Card #%d)\n", hdsp->card_name,
3301 		    hdsp->card->number + 1);
3302 	snd_iprintf(buffer, "Buffers: capture %p playback %p\n",
3303 		    hdsp->capture_buffer, hdsp->playback_buffer);
3304 	snd_iprintf(buffer, "IRQ: %d Registers bus: 0x%lx VM: 0x%lx\n",
3305 		    hdsp->irq, hdsp->port, (unsigned long)hdsp->iobase);
3306 	snd_iprintf(buffer, "Control register: 0x%x\n", hdsp->control_register);
3307 	snd_iprintf(buffer, "Control2 register: 0x%x\n",
3308 		    hdsp->control2_register);
3309 	snd_iprintf(buffer, "Status register: 0x%x\n", status);
3310 	snd_iprintf(buffer, "Status2 register: 0x%x\n", status2);
3311 
3312 	if (hdsp_check_for_iobox(hdsp)) {
3313 		snd_iprintf(buffer, "No I/O box connected.\n"
3314 			    "Please connect one and upload firmware.\n");
3315 		return;
3316 	}
3317 
3318 	if (hdsp_check_for_firmware(hdsp, 0)) {
3319 		if (hdsp->state & HDSP_FirmwareCached) {
3320 			if (snd_hdsp_load_firmware_from_cache(hdsp) != 0) {
3321 				snd_iprintf(buffer, "Firmware loading from "
3322 					    "cache failed, "
3323 					    "please upload manually.\n");
3324 				return;
3325 			}
3326 		} else {
3327 			int err = -EINVAL;
3328 #ifdef HDSP_FW_LOADER
3329 			err = hdsp_request_fw_loader(hdsp);
3330 #endif
3331 			if (err < 0) {
3332 				snd_iprintf(buffer,
3333 					    "No firmware loaded nor cached, "
3334 					    "please upload firmware.\n");
3335 				return;
3336 			}
3337 		}
3338 	}
3339 
3340 	snd_iprintf(buffer, "FIFO status: %d\n", hdsp_read(hdsp, HDSP_fifoStatus) & 0xff);
3341 	snd_iprintf(buffer, "MIDI1 Output status: 0x%x\n", hdsp_read(hdsp, HDSP_midiStatusOut0));
3342 	snd_iprintf(buffer, "MIDI1 Input status: 0x%x\n", hdsp_read(hdsp, HDSP_midiStatusIn0));
3343 	snd_iprintf(buffer, "MIDI2 Output status: 0x%x\n", hdsp_read(hdsp, HDSP_midiStatusOut1));
3344 	snd_iprintf(buffer, "MIDI2 Input status: 0x%x\n", hdsp_read(hdsp, HDSP_midiStatusIn1));
3345 	snd_iprintf(buffer, "Use Midi Tasklet: %s\n", hdsp->use_midi_tasklet ? "on" : "off");
3346 
3347 	snd_iprintf(buffer, "\n");
3348 
3349 	x = 1 << (6 + hdsp_decode_latency(hdsp->control_register & HDSP_LatencyMask));
3350 
3351 	snd_iprintf(buffer, "Buffer Size (Latency): %d samples (2 periods of %lu bytes)\n", x, (unsigned long) hdsp->period_bytes);
3352 	snd_iprintf(buffer, "Hardware pointer (frames): %ld\n", hdsp_hw_pointer(hdsp));
3353 	snd_iprintf(buffer, "Precise pointer: %s\n", hdsp->precise_ptr ? "on" : "off");
3354 	snd_iprintf(buffer, "Line out: %s\n", (hdsp->control_register & HDSP_LineOut) ? "on" : "off");
3355 
3356 	snd_iprintf(buffer, "Firmware version: %d\n", (status2&HDSP_version0)|(status2&HDSP_version1)<<1|(status2&HDSP_version2)<<2);
3357 
3358 	snd_iprintf(buffer, "\n");
3359 
3360 	switch (hdsp_clock_source(hdsp)) {
3361 	case HDSP_CLOCK_SOURCE_AUTOSYNC:
3362 		clock_source = "AutoSync";
3363 		break;
3364 	case HDSP_CLOCK_SOURCE_INTERNAL_32KHZ:
3365 		clock_source = "Internal 32 kHz";
3366 		break;
3367 	case HDSP_CLOCK_SOURCE_INTERNAL_44_1KHZ:
3368 		clock_source = "Internal 44.1 kHz";
3369 		break;
3370 	case HDSP_CLOCK_SOURCE_INTERNAL_48KHZ:
3371 		clock_source = "Internal 48 kHz";
3372 		break;
3373 	case HDSP_CLOCK_SOURCE_INTERNAL_64KHZ:
3374 		clock_source = "Internal 64 kHz";
3375 		break;
3376 	case HDSP_CLOCK_SOURCE_INTERNAL_88_2KHZ:
3377 		clock_source = "Internal 88.2 kHz";
3378 		break;
3379 	case HDSP_CLOCK_SOURCE_INTERNAL_96KHZ:
3380 		clock_source = "Internal 96 kHz";
3381 		break;
3382 	case HDSP_CLOCK_SOURCE_INTERNAL_128KHZ:
3383 		clock_source = "Internal 128 kHz";
3384 		break;
3385 	case HDSP_CLOCK_SOURCE_INTERNAL_176_4KHZ:
3386 		clock_source = "Internal 176.4 kHz";
3387 		break;
3388 		case HDSP_CLOCK_SOURCE_INTERNAL_192KHZ:
3389 		clock_source = "Internal 192 kHz";
3390 		break;
3391 	default:
3392 		clock_source = "Error";
3393 	}
3394 	snd_iprintf (buffer, "Sample Clock Source: %s\n", clock_source);
3395 
3396 	if (hdsp_system_clock_mode(hdsp))
3397 		system_clock_mode = "Slave";
3398 	else
3399 		system_clock_mode = "Master";
3400 
3401 	switch (hdsp_pref_sync_ref (hdsp)) {
3402 	case HDSP_SYNC_FROM_WORD:
3403 		pref_sync_ref = "Word Clock";
3404 		break;
3405 	case HDSP_SYNC_FROM_ADAT_SYNC:
3406 		pref_sync_ref = "ADAT Sync";
3407 		break;
3408 	case HDSP_SYNC_FROM_SPDIF:
3409 		pref_sync_ref = "SPDIF";
3410 		break;
3411 	case HDSP_SYNC_FROM_ADAT1:
3412 		pref_sync_ref = "ADAT1";
3413 		break;
3414 	case HDSP_SYNC_FROM_ADAT2:
3415 		pref_sync_ref = "ADAT2";
3416 		break;
3417 	case HDSP_SYNC_FROM_ADAT3:
3418 		pref_sync_ref = "ADAT3";
3419 		break;
3420 	default:
3421 		pref_sync_ref = "Word Clock";
3422 		break;
3423 	}
3424 	snd_iprintf (buffer, "Preferred Sync Reference: %s\n", pref_sync_ref);
3425 
3426 	switch (hdsp_autosync_ref (hdsp)) {
3427 	case HDSP_AUTOSYNC_FROM_WORD:
3428 		autosync_ref = "Word Clock";
3429 		break;
3430 	case HDSP_AUTOSYNC_FROM_ADAT_SYNC:
3431 		autosync_ref = "ADAT Sync";
3432 		break;
3433 	case HDSP_AUTOSYNC_FROM_SPDIF:
3434 		autosync_ref = "SPDIF";
3435 		break;
3436 	case HDSP_AUTOSYNC_FROM_NONE:
3437 		autosync_ref = "None";
3438 		break;
3439 	case HDSP_AUTOSYNC_FROM_ADAT1:
3440 		autosync_ref = "ADAT1";
3441 		break;
3442 	case HDSP_AUTOSYNC_FROM_ADAT2:
3443 		autosync_ref = "ADAT2";
3444 		break;
3445 	case HDSP_AUTOSYNC_FROM_ADAT3:
3446 		autosync_ref = "ADAT3";
3447 		break;
3448 	default:
3449 		autosync_ref = "---";
3450 		break;
3451 	}
3452 	snd_iprintf (buffer, "AutoSync Reference: %s\n", autosync_ref);
3453 
3454 	snd_iprintf (buffer, "AutoSync Frequency: %d\n", hdsp_external_sample_rate(hdsp));
3455 
3456 	snd_iprintf (buffer, "System Clock Mode: %s\n", system_clock_mode);
3457 
3458 	snd_iprintf (buffer, "System Clock Frequency: %d\n", hdsp->system_sample_rate);
3459 	snd_iprintf (buffer, "System Clock Locked: %s\n", hdsp->clock_source_locked ? "Yes" : "No");
3460 
3461 	snd_iprintf(buffer, "\n");
3462 
3463 	switch (hdsp_spdif_in(hdsp)) {
3464 	case HDSP_SPDIFIN_OPTICAL:
3465 		snd_iprintf(buffer, "IEC958 input: Optical\n");
3466 		break;
3467 	case HDSP_SPDIFIN_COAXIAL:
3468 		snd_iprintf(buffer, "IEC958 input: Coaxial\n");
3469 		break;
3470 	case HDSP_SPDIFIN_INTERNAL:
3471 		snd_iprintf(buffer, "IEC958 input: Internal\n");
3472 		break;
3473 	case HDSP_SPDIFIN_AES:
3474 		snd_iprintf(buffer, "IEC958 input: AES\n");
3475 		break;
3476 	default:
3477 		snd_iprintf(buffer, "IEC958 input: ???\n");
3478 		break;
3479 	}
3480 
3481 	if (hdsp->control_register & HDSP_SPDIFOpticalOut)
3482 		snd_iprintf(buffer, "IEC958 output: Coaxial & ADAT1\n");
3483 	else
3484 		snd_iprintf(buffer, "IEC958 output: Coaxial only\n");
3485 
3486 	if (hdsp->control_register & HDSP_SPDIFProfessional)
3487 		snd_iprintf(buffer, "IEC958 quality: Professional\n");
3488 	else
3489 		snd_iprintf(buffer, "IEC958 quality: Consumer\n");
3490 
3491 	if (hdsp->control_register & HDSP_SPDIFEmphasis)
3492 		snd_iprintf(buffer, "IEC958 emphasis: on\n");
3493 	else
3494 		snd_iprintf(buffer, "IEC958 emphasis: off\n");
3495 
3496 	if (hdsp->control_register & HDSP_SPDIFNonAudio)
3497 		snd_iprintf(buffer, "IEC958 NonAudio: on\n");
3498 	else
3499 		snd_iprintf(buffer, "IEC958 NonAudio: off\n");
3500 	if ((x = hdsp_spdif_sample_rate (hdsp)) != 0)
3501 		snd_iprintf (buffer, "IEC958 sample rate: %d\n", x);
3502 	else
3503 		snd_iprintf (buffer, "IEC958 sample rate: Error flag set\n");
3504 
3505 	snd_iprintf(buffer, "\n");
3506 
3507 	/* Sync Check */
3508 	x = status & HDSP_Sync0;
3509 	if (status & HDSP_Lock0)
3510 		snd_iprintf(buffer, "ADAT1: %s\n", x ? "Sync" : "Lock");
3511 	else
3512 		snd_iprintf(buffer, "ADAT1: No Lock\n");
3513 
3514 	switch (hdsp->io_type) {
3515 	case Digiface:
3516 	case H9652:
3517 		x = status & HDSP_Sync1;
3518 		if (status & HDSP_Lock1)
3519 			snd_iprintf(buffer, "ADAT2: %s\n", x ? "Sync" : "Lock");
3520 		else
3521 			snd_iprintf(buffer, "ADAT2: No Lock\n");
3522 		x = status & HDSP_Sync2;
3523 		if (status & HDSP_Lock2)
3524 			snd_iprintf(buffer, "ADAT3: %s\n", x ? "Sync" : "Lock");
3525 		else
3526 			snd_iprintf(buffer, "ADAT3: No Lock\n");
3527 		break;
3528 	default:
3529 		/* relax */
3530 		break;
3531 	}
3532 
3533 	x = status & HDSP_SPDIFSync;
3534 	if (status & HDSP_SPDIFErrorFlag)
3535 		snd_iprintf (buffer, "SPDIF: No Lock\n");
3536 	else
3537 		snd_iprintf (buffer, "SPDIF: %s\n", x ? "Sync" : "Lock");
3538 
3539 	x = status2 & HDSP_wc_sync;
3540 	if (status2 & HDSP_wc_lock)
3541 		snd_iprintf (buffer, "Word Clock: %s\n", x ? "Sync" : "Lock");
3542 	else
3543 		snd_iprintf (buffer, "Word Clock: No Lock\n");
3544 
3545 	x = status & HDSP_TimecodeSync;
3546 	if (status & HDSP_TimecodeLock)
3547 		snd_iprintf(buffer, "ADAT Sync: %s\n", x ? "Sync" : "Lock");
3548 	else
3549 		snd_iprintf(buffer, "ADAT Sync: No Lock\n");
3550 
3551 	snd_iprintf(buffer, "\n");
3552 
3553 	/* Informations about H9632 specific controls */
3554 	if (hdsp->io_type == H9632) {
3555 		char *tmp;
3556 
3557 		switch (hdsp_ad_gain(hdsp)) {
3558 		case 0:
3559 			tmp = "-10 dBV";
3560 			break;
3561 		case 1:
3562 			tmp = "+4 dBu";
3563 			break;
3564 		default:
3565 			tmp = "Lo Gain";
3566 			break;
3567 		}
3568 		snd_iprintf(buffer, "AD Gain : %s\n", tmp);
3569 
3570 		switch (hdsp_da_gain(hdsp)) {
3571 		case 0:
3572 			tmp = "Hi Gain";
3573 			break;
3574 		case 1:
3575 			tmp = "+4 dBu";
3576 			break;
3577 		default:
3578 			tmp = "-10 dBV";
3579 			break;
3580 		}
3581 		snd_iprintf(buffer, "DA Gain : %s\n", tmp);
3582 
3583 		switch (hdsp_phone_gain(hdsp)) {
3584 		case 0:
3585 			tmp = "0 dB";
3586 			break;
3587 		case 1:
3588 			tmp = "-6 dB";
3589 			break;
3590 		default:
3591 			tmp = "-12 dB";
3592 			break;
3593 		}
3594 		snd_iprintf(buffer, "Phones Gain : %s\n", tmp);
3595 
3596 		snd_iprintf(buffer, "XLR Breakout Cable : %s\n", hdsp_xlr_breakout_cable(hdsp) ? "yes" : "no");
3597 
3598 		if (hdsp->control_register & HDSP_AnalogExtensionBoard)
3599 			snd_iprintf(buffer, "AEB : on (ADAT1 internal)\n");
3600 		else
3601 			snd_iprintf(buffer, "AEB : off (ADAT1 external)\n");
3602 		snd_iprintf(buffer, "\n");
3603 	}
3604 
3605 }
3606 
3607 static void snd_hdsp_proc_init(struct hdsp *hdsp)
3608 {
3609 	struct snd_info_entry *entry;
3610 
3611 	if (! snd_card_proc_new(hdsp->card, "hdsp", &entry))
3612 		snd_info_set_text_ops(entry, hdsp, snd_hdsp_proc_read);
3613 }
3614 
3615 static void snd_hdsp_free_buffers(struct hdsp *hdsp)
3616 {
3617 	snd_hammerfall_free_buffer(&hdsp->capture_dma_buf, hdsp->pci);
3618 	snd_hammerfall_free_buffer(&hdsp->playback_dma_buf, hdsp->pci);
3619 }
3620 
3621 static int __devinit snd_hdsp_initialize_memory(struct hdsp *hdsp)
3622 {
3623 	unsigned long pb_bus, cb_bus;
3624 
3625 	if (snd_hammerfall_get_buffer(hdsp->pci, &hdsp->capture_dma_buf, HDSP_DMA_AREA_BYTES) < 0 ||
3626 	    snd_hammerfall_get_buffer(hdsp->pci, &hdsp->playback_dma_buf, HDSP_DMA_AREA_BYTES) < 0) {
3627 		if (hdsp->capture_dma_buf.area)
3628 			snd_dma_free_pages(&hdsp->capture_dma_buf);
3629 		printk(KERN_ERR "%s: no buffers available\n", hdsp->card_name);
3630 		return -ENOMEM;
3631 	}
3632 
3633 	/* Align to bus-space 64K boundary */
3634 
3635 	cb_bus = ALIGN(hdsp->capture_dma_buf.addr, 0x10000ul);
3636 	pb_bus = ALIGN(hdsp->playback_dma_buf.addr, 0x10000ul);
3637 
3638 	/* Tell the card where it is */
3639 
3640 	hdsp_write(hdsp, HDSP_inputBufferAddress, cb_bus);
3641 	hdsp_write(hdsp, HDSP_outputBufferAddress, pb_bus);
3642 
3643 	hdsp->capture_buffer = hdsp->capture_dma_buf.area + (cb_bus - hdsp->capture_dma_buf.addr);
3644 	hdsp->playback_buffer = hdsp->playback_dma_buf.area + (pb_bus - hdsp->playback_dma_buf.addr);
3645 
3646 	return 0;
3647 }
3648 
3649 static int snd_hdsp_set_defaults(struct hdsp *hdsp)
3650 {
3651 	unsigned int i;
3652 
3653 	/* ASSUMPTION: hdsp->lock is either held, or
3654 	   there is no need to hold it (e.g. during module
3655 	   initialization).
3656 	 */
3657 
3658 	/* set defaults:
3659 
3660 	   SPDIF Input via Coax
3661 	   Master clock mode
3662 	   maximum latency (7 => 2^7 = 8192 samples, 64Kbyte buffer,
3663 	                    which implies 2 4096 sample, 32Kbyte periods).
3664            Enable line out.
3665 	 */
3666 
3667 	hdsp->control_register = HDSP_ClockModeMaster |
3668 		                 HDSP_SPDIFInputCoaxial |
3669 		                 hdsp_encode_latency(7) |
3670 		                 HDSP_LineOut;
3671 
3672 
3673 	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
3674 
3675 #ifdef SNDRV_BIG_ENDIAN
3676 	hdsp->control2_register = HDSP_BIGENDIAN_MODE;
3677 #else
3678 	hdsp->control2_register = 0;
3679 #endif
3680 	if (hdsp->io_type == H9652)
3681 	        snd_hdsp_9652_enable_mixer (hdsp);
3682 	else
3683 		hdsp_write (hdsp, HDSP_control2Reg, hdsp->control2_register);
3684 
3685 	hdsp_reset_hw_pointer(hdsp);
3686 	hdsp_compute_period_size(hdsp);
3687 
3688 	/* silence everything */
3689 
3690 	for (i = 0; i < HDSP_MATRIX_MIXER_SIZE; ++i)
3691 		hdsp->mixer_matrix[i] = MINUS_INFINITY_GAIN;
3692 
3693 	for (i = 0; i < ((hdsp->io_type == H9652 || hdsp->io_type == H9632) ? 1352 : HDSP_MATRIX_MIXER_SIZE); ++i) {
3694 		if (hdsp_write_gain (hdsp, i, MINUS_INFINITY_GAIN))
3695 			return -EIO;
3696 	}
3697 
3698 	/* H9632 specific defaults */
3699 	if (hdsp->io_type == H9632) {
3700 		hdsp->control_register |= (HDSP_DAGainPlus4dBu | HDSP_ADGainPlus4dBu | HDSP_PhoneGain0dB);
3701 		hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
3702 	}
3703 
3704 	/* set a default rate so that the channel map is set up.
3705 	 */
3706 
3707 	hdsp_set_rate(hdsp, 48000, 1);
3708 
3709 	return 0;
3710 }
3711 
3712 static void hdsp_midi_tasklet(unsigned long arg)
3713 {
3714 	struct hdsp *hdsp = (struct hdsp *)arg;
3715 
3716 	if (hdsp->midi[0].pending)
3717 		snd_hdsp_midi_input_read (&hdsp->midi[0]);
3718 	if (hdsp->midi[1].pending)
3719 		snd_hdsp_midi_input_read (&hdsp->midi[1]);
3720 }
3721 
3722 static irqreturn_t snd_hdsp_interrupt(int irq, void *dev_id)
3723 {
3724 	struct hdsp *hdsp = (struct hdsp *) dev_id;
3725 	unsigned int status;
3726 	int audio;
3727 	int midi0;
3728 	int midi1;
3729 	unsigned int midi0status;
3730 	unsigned int midi1status;
3731 	int schedule = 0;
3732 
3733 	status = hdsp_read(hdsp, HDSP_statusRegister);
3734 
3735 	audio = status & HDSP_audioIRQPending;
3736 	midi0 = status & HDSP_midi0IRQPending;
3737 	midi1 = status & HDSP_midi1IRQPending;
3738 
3739 	if (!audio && !midi0 && !midi1)
3740 		return IRQ_NONE;
3741 
3742 	hdsp_write(hdsp, HDSP_interruptConfirmation, 0);
3743 
3744 	midi0status = hdsp_read (hdsp, HDSP_midiStatusIn0) & 0xff;
3745 	midi1status = hdsp_read (hdsp, HDSP_midiStatusIn1) & 0xff;
3746 
3747 	if (!(hdsp->state & HDSP_InitializationComplete))
3748 		return IRQ_HANDLED;
3749 
3750 	if (audio) {
3751 		if (hdsp->capture_substream)
3752 			snd_pcm_period_elapsed(hdsp->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
3753 
3754 		if (hdsp->playback_substream)
3755 			snd_pcm_period_elapsed(hdsp->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream);
3756 	}
3757 
3758 	if (midi0 && midi0status) {
3759 		if (hdsp->use_midi_tasklet) {
3760 			/* we disable interrupts for this input until processing is done */
3761 			hdsp->control_register &= ~HDSP_Midi0InterruptEnable;
3762 			hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
3763 			hdsp->midi[0].pending = 1;
3764 			schedule = 1;
3765 		} else {
3766 			snd_hdsp_midi_input_read (&hdsp->midi[0]);
3767 		}
3768 	}
3769 	if (hdsp->io_type != Multiface && hdsp->io_type != H9632 && midi1 && midi1status) {
3770 		if (hdsp->use_midi_tasklet) {
3771 			/* we disable interrupts for this input until processing is done */
3772 			hdsp->control_register &= ~HDSP_Midi1InterruptEnable;
3773 			hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
3774 			hdsp->midi[1].pending = 1;
3775 			schedule = 1;
3776 		} else {
3777 			snd_hdsp_midi_input_read (&hdsp->midi[1]);
3778 		}
3779 	}
3780 	if (hdsp->use_midi_tasklet && schedule)
3781 		tasklet_schedule(&hdsp->midi_tasklet);
3782 	return IRQ_HANDLED;
3783 }
3784 
3785 static snd_pcm_uframes_t snd_hdsp_hw_pointer(struct snd_pcm_substream *substream)
3786 {
3787 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3788 	return hdsp_hw_pointer(hdsp);
3789 }
3790 
3791 static char *hdsp_channel_buffer_location(struct hdsp *hdsp,
3792 					     int stream,
3793 					     int channel)
3794 
3795 {
3796 	int mapped_channel;
3797 
3798         if (snd_BUG_ON(channel < 0 || channel >= hdsp->max_channels))
3799 		return NULL;
3800 
3801 	if ((mapped_channel = hdsp->channel_map[channel]) < 0)
3802 		return NULL;
3803 
3804 	if (stream == SNDRV_PCM_STREAM_CAPTURE)
3805 		return hdsp->capture_buffer + (mapped_channel * HDSP_CHANNEL_BUFFER_BYTES);
3806 	else
3807 		return hdsp->playback_buffer + (mapped_channel * HDSP_CHANNEL_BUFFER_BYTES);
3808 }
3809 
3810 static int snd_hdsp_playback_copy(struct snd_pcm_substream *substream, int channel,
3811 				  snd_pcm_uframes_t pos, void __user *src, snd_pcm_uframes_t count)
3812 {
3813 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3814 	char *channel_buf;
3815 
3816 	if (snd_BUG_ON(pos + count > HDSP_CHANNEL_BUFFER_BYTES / 4))
3817 		return -EINVAL;
3818 
3819 	channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);
3820 	if (snd_BUG_ON(!channel_buf))
3821 		return -EIO;
3822 	if (copy_from_user(channel_buf + pos * 4, src, count * 4))
3823 		return -EFAULT;
3824 	return count;
3825 }
3826 
3827 static int snd_hdsp_capture_copy(struct snd_pcm_substream *substream, int channel,
3828 				 snd_pcm_uframes_t pos, void __user *dst, snd_pcm_uframes_t count)
3829 {
3830 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3831 	char *channel_buf;
3832 
3833 	if (snd_BUG_ON(pos + count > HDSP_CHANNEL_BUFFER_BYTES / 4))
3834 		return -EINVAL;
3835 
3836 	channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);
3837 	if (snd_BUG_ON(!channel_buf))
3838 		return -EIO;
3839 	if (copy_to_user(dst, channel_buf + pos * 4, count * 4))
3840 		return -EFAULT;
3841 	return count;
3842 }
3843 
3844 static int snd_hdsp_hw_silence(struct snd_pcm_substream *substream, int channel,
3845 				  snd_pcm_uframes_t pos, snd_pcm_uframes_t count)
3846 {
3847 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3848 	char *channel_buf;
3849 
3850 	channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);
3851 	if (snd_BUG_ON(!channel_buf))
3852 		return -EIO;
3853 	memset(channel_buf + pos * 4, 0, count * 4);
3854 	return count;
3855 }
3856 
3857 static int snd_hdsp_reset(struct snd_pcm_substream *substream)
3858 {
3859 	struct snd_pcm_runtime *runtime = substream->runtime;
3860 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3861 	struct snd_pcm_substream *other;
3862 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
3863 		other = hdsp->capture_substream;
3864 	else
3865 		other = hdsp->playback_substream;
3866 	if (hdsp->running)
3867 		runtime->status->hw_ptr = hdsp_hw_pointer(hdsp);
3868 	else
3869 		runtime->status->hw_ptr = 0;
3870 	if (other) {
3871 		struct snd_pcm_substream *s;
3872 		struct snd_pcm_runtime *oruntime = other->runtime;
3873 		snd_pcm_group_for_each_entry(s, substream) {
3874 			if (s == other) {
3875 				oruntime->status->hw_ptr = runtime->status->hw_ptr;
3876 				break;
3877 			}
3878 		}
3879 	}
3880 	return 0;
3881 }
3882 
3883 static int snd_hdsp_hw_params(struct snd_pcm_substream *substream,
3884 				 struct snd_pcm_hw_params *params)
3885 {
3886 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3887 	int err;
3888 	pid_t this_pid;
3889 	pid_t other_pid;
3890 
3891 	if (hdsp_check_for_iobox (hdsp))
3892 		return -EIO;
3893 
3894 	if (hdsp_check_for_firmware(hdsp, 1))
3895 		return -EIO;
3896 
3897 	spin_lock_irq(&hdsp->lock);
3898 
3899 	if (substream->pstr->stream == SNDRV_PCM_STREAM_PLAYBACK) {
3900 		hdsp->control_register &= ~(HDSP_SPDIFProfessional | HDSP_SPDIFNonAudio | HDSP_SPDIFEmphasis);
3901 		hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register |= hdsp->creg_spdif_stream);
3902 		this_pid = hdsp->playback_pid;
3903 		other_pid = hdsp->capture_pid;
3904 	} else {
3905 		this_pid = hdsp->capture_pid;
3906 		other_pid = hdsp->playback_pid;
3907 	}
3908 
3909 	if ((other_pid > 0) && (this_pid != other_pid)) {
3910 
3911 		/* The other stream is open, and not by the same
3912 		   task as this one. Make sure that the parameters
3913 		   that matter are the same.
3914 		 */
3915 
3916 		if (params_rate(params) != hdsp->system_sample_rate) {
3917 			spin_unlock_irq(&hdsp->lock);
3918 			_snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_RATE);
3919 			return -EBUSY;
3920 		}
3921 
3922 		if (params_period_size(params) != hdsp->period_bytes / 4) {
3923 			spin_unlock_irq(&hdsp->lock);
3924 			_snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE);
3925 			return -EBUSY;
3926 		}
3927 
3928 		/* We're fine. */
3929 
3930 		spin_unlock_irq(&hdsp->lock);
3931  		return 0;
3932 
3933 	} else {
3934 		spin_unlock_irq(&hdsp->lock);
3935 	}
3936 
3937 	/* how to make sure that the rate matches an externally-set one ?
3938 	 */
3939 
3940 	spin_lock_irq(&hdsp->lock);
3941 	if (! hdsp->clock_source_locked) {
3942 		if ((err = hdsp_set_rate(hdsp, params_rate(params), 0)) < 0) {
3943 			spin_unlock_irq(&hdsp->lock);
3944 			_snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_RATE);
3945 			return err;
3946 		}
3947 	}
3948 	spin_unlock_irq(&hdsp->lock);
3949 
3950 	if ((err = hdsp_set_interrupt_interval(hdsp, params_period_size(params))) < 0) {
3951 		_snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE);
3952 		return err;
3953 	}
3954 
3955 	return 0;
3956 }
3957 
3958 static int snd_hdsp_channel_info(struct snd_pcm_substream *substream,
3959 				    struct snd_pcm_channel_info *info)
3960 {
3961 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3962 	int mapped_channel;
3963 
3964 	if (snd_BUG_ON(info->channel >= hdsp->max_channels))
3965 		return -EINVAL;
3966 
3967 	if ((mapped_channel = hdsp->channel_map[info->channel]) < 0)
3968 		return -EINVAL;
3969 
3970 	info->offset = mapped_channel * HDSP_CHANNEL_BUFFER_BYTES;
3971 	info->first = 0;
3972 	info->step = 32;
3973 	return 0;
3974 }
3975 
3976 static int snd_hdsp_ioctl(struct snd_pcm_substream *substream,
3977 			     unsigned int cmd, void *arg)
3978 {
3979 	switch (cmd) {
3980 	case SNDRV_PCM_IOCTL1_RESET:
3981 		return snd_hdsp_reset(substream);
3982 	case SNDRV_PCM_IOCTL1_CHANNEL_INFO:
3983 		return snd_hdsp_channel_info(substream, arg);
3984 	default:
3985 		break;
3986 	}
3987 
3988 	return snd_pcm_lib_ioctl(substream, cmd, arg);
3989 }
3990 
3991 static int snd_hdsp_trigger(struct snd_pcm_substream *substream, int cmd)
3992 {
3993 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
3994 	struct snd_pcm_substream *other;
3995 	int running;
3996 
3997 	if (hdsp_check_for_iobox (hdsp))
3998 		return -EIO;
3999 
4000 	if (hdsp_check_for_firmware(hdsp, 0)) /* no auto-loading in trigger */
4001 		return -EIO;
4002 
4003 	spin_lock(&hdsp->lock);
4004 	running = hdsp->running;
4005 	switch (cmd) {
4006 	case SNDRV_PCM_TRIGGER_START:
4007 		running |= 1 << substream->stream;
4008 		break;
4009 	case SNDRV_PCM_TRIGGER_STOP:
4010 		running &= ~(1 << substream->stream);
4011 		break;
4012 	default:
4013 		snd_BUG();
4014 		spin_unlock(&hdsp->lock);
4015 		return -EINVAL;
4016 	}
4017 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
4018 		other = hdsp->capture_substream;
4019 	else
4020 		other = hdsp->playback_substream;
4021 
4022 	if (other) {
4023 		struct snd_pcm_substream *s;
4024 		snd_pcm_group_for_each_entry(s, substream) {
4025 			if (s == other) {
4026 				snd_pcm_trigger_done(s, substream);
4027 				if (cmd == SNDRV_PCM_TRIGGER_START)
4028 					running |= 1 << s->stream;
4029 				else
4030 					running &= ~(1 << s->stream);
4031 				goto _ok;
4032 			}
4033 		}
4034 		if (cmd == SNDRV_PCM_TRIGGER_START) {
4035 			if (!(running & (1 << SNDRV_PCM_STREAM_PLAYBACK)) &&
4036 			    substream->stream == SNDRV_PCM_STREAM_CAPTURE)
4037 				hdsp_silence_playback(hdsp);
4038 		} else {
4039 			if (running &&
4040 			    substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
4041 				hdsp_silence_playback(hdsp);
4042 		}
4043 	} else {
4044 		if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
4045 				hdsp_silence_playback(hdsp);
4046 	}
4047  _ok:
4048 	snd_pcm_trigger_done(substream, substream);
4049 	if (!hdsp->running && running)
4050 		hdsp_start_audio(hdsp);
4051 	else if (hdsp->running && !running)
4052 		hdsp_stop_audio(hdsp);
4053 	hdsp->running = running;
4054 	spin_unlock(&hdsp->lock);
4055 
4056 	return 0;
4057 }
4058 
4059 static int snd_hdsp_prepare(struct snd_pcm_substream *substream)
4060 {
4061 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
4062 	int result = 0;
4063 
4064 	if (hdsp_check_for_iobox (hdsp))
4065 		return -EIO;
4066 
4067 	if (hdsp_check_for_firmware(hdsp, 1))
4068 		return -EIO;
4069 
4070 	spin_lock_irq(&hdsp->lock);
4071 	if (!hdsp->running)
4072 		hdsp_reset_hw_pointer(hdsp);
4073 	spin_unlock_irq(&hdsp->lock);
4074 	return result;
4075 }
4076 
4077 static struct snd_pcm_hardware snd_hdsp_playback_subinfo =
4078 {
4079 	.info =			(SNDRV_PCM_INFO_MMAP |
4080 				 SNDRV_PCM_INFO_MMAP_VALID |
4081 				 SNDRV_PCM_INFO_NONINTERLEAVED |
4082 				 SNDRV_PCM_INFO_SYNC_START |
4083 				 SNDRV_PCM_INFO_DOUBLE),
4084 #ifdef SNDRV_BIG_ENDIAN
4085 	.formats =		SNDRV_PCM_FMTBIT_S32_BE,
4086 #else
4087 	.formats =		SNDRV_PCM_FMTBIT_S32_LE,
4088 #endif
4089 	.rates =		(SNDRV_PCM_RATE_32000 |
4090 				 SNDRV_PCM_RATE_44100 |
4091 				 SNDRV_PCM_RATE_48000 |
4092 				 SNDRV_PCM_RATE_64000 |
4093 				 SNDRV_PCM_RATE_88200 |
4094 				 SNDRV_PCM_RATE_96000),
4095 	.rate_min =		32000,
4096 	.rate_max =		96000,
4097 	.channels_min =		14,
4098 	.channels_max =		HDSP_MAX_CHANNELS,
4099 	.buffer_bytes_max =	HDSP_CHANNEL_BUFFER_BYTES * HDSP_MAX_CHANNELS,
4100 	.period_bytes_min =	(64 * 4) * 10,
4101 	.period_bytes_max =	(8192 * 4) * HDSP_MAX_CHANNELS,
4102 	.periods_min =		2,
4103 	.periods_max =		2,
4104 	.fifo_size =		0
4105 };
4106 
4107 static struct snd_pcm_hardware snd_hdsp_capture_subinfo =
4108 {
4109 	.info =			(SNDRV_PCM_INFO_MMAP |
4110 				 SNDRV_PCM_INFO_MMAP_VALID |
4111 				 SNDRV_PCM_INFO_NONINTERLEAVED |
4112 				 SNDRV_PCM_INFO_SYNC_START),
4113 #ifdef SNDRV_BIG_ENDIAN
4114 	.formats =		SNDRV_PCM_FMTBIT_S32_BE,
4115 #else
4116 	.formats =		SNDRV_PCM_FMTBIT_S32_LE,
4117 #endif
4118 	.rates =		(SNDRV_PCM_RATE_32000 |
4119 				 SNDRV_PCM_RATE_44100 |
4120 				 SNDRV_PCM_RATE_48000 |
4121 				 SNDRV_PCM_RATE_64000 |
4122 				 SNDRV_PCM_RATE_88200 |
4123 				 SNDRV_PCM_RATE_96000),
4124 	.rate_min =		32000,
4125 	.rate_max =		96000,
4126 	.channels_min =		14,
4127 	.channels_max =		HDSP_MAX_CHANNELS,
4128 	.buffer_bytes_max =	HDSP_CHANNEL_BUFFER_BYTES * HDSP_MAX_CHANNELS,
4129 	.period_bytes_min =	(64 * 4) * 10,
4130 	.period_bytes_max =	(8192 * 4) * HDSP_MAX_CHANNELS,
4131 	.periods_min =		2,
4132 	.periods_max =		2,
4133 	.fifo_size =		0
4134 };
4135 
4136 static unsigned int hdsp_period_sizes[] = { 64, 128, 256, 512, 1024, 2048, 4096, 8192 };
4137 
4138 static struct snd_pcm_hw_constraint_list hdsp_hw_constraints_period_sizes = {
4139 	.count = ARRAY_SIZE(hdsp_period_sizes),
4140 	.list = hdsp_period_sizes,
4141 	.mask = 0
4142 };
4143 
4144 static unsigned int hdsp_9632_sample_rates[] = { 32000, 44100, 48000, 64000, 88200, 96000, 128000, 176400, 192000 };
4145 
4146 static struct snd_pcm_hw_constraint_list hdsp_hw_constraints_9632_sample_rates = {
4147 	.count = ARRAY_SIZE(hdsp_9632_sample_rates),
4148 	.list = hdsp_9632_sample_rates,
4149 	.mask = 0
4150 };
4151 
4152 static int snd_hdsp_hw_rule_in_channels(struct snd_pcm_hw_params *params,
4153 					struct snd_pcm_hw_rule *rule)
4154 {
4155 	struct hdsp *hdsp = rule->private;
4156 	struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
4157 	if (hdsp->io_type == H9632) {
4158 		unsigned int list[3];
4159 		list[0] = hdsp->qs_in_channels;
4160 		list[1] = hdsp->ds_in_channels;
4161 		list[2] = hdsp->ss_in_channels;
4162 		return snd_interval_list(c, 3, list, 0);
4163 	} else {
4164 		unsigned int list[2];
4165 		list[0] = hdsp->ds_in_channels;
4166 		list[1] = hdsp->ss_in_channels;
4167 		return snd_interval_list(c, 2, list, 0);
4168 	}
4169 }
4170 
4171 static int snd_hdsp_hw_rule_out_channels(struct snd_pcm_hw_params *params,
4172 					struct snd_pcm_hw_rule *rule)
4173 {
4174 	unsigned int list[3];
4175 	struct hdsp *hdsp = rule->private;
4176 	struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
4177 	if (hdsp->io_type == H9632) {
4178 		list[0] = hdsp->qs_out_channels;
4179 		list[1] = hdsp->ds_out_channels;
4180 		list[2] = hdsp->ss_out_channels;
4181 		return snd_interval_list(c, 3, list, 0);
4182 	} else {
4183 		list[0] = hdsp->ds_out_channels;
4184 		list[1] = hdsp->ss_out_channels;
4185 	}
4186 	return snd_interval_list(c, 2, list, 0);
4187 }
4188 
4189 static int snd_hdsp_hw_rule_in_channels_rate(struct snd_pcm_hw_params *params,
4190 					     struct snd_pcm_hw_rule *rule)
4191 {
4192 	struct hdsp *hdsp = rule->private;
4193 	struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
4194 	struct snd_interval *r = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
4195 	if (r->min > 96000 && hdsp->io_type == H9632) {
4196 		struct snd_interval t = {
4197 			.min = hdsp->qs_in_channels,
4198 			.max = hdsp->qs_in_channels,
4199 			.integer = 1,
4200 		};
4201 		return snd_interval_refine(c, &t);
4202 	} else if (r->min > 48000 && r->max <= 96000) {
4203 		struct snd_interval t = {
4204 			.min = hdsp->ds_in_channels,
4205 			.max = hdsp->ds_in_channels,
4206 			.integer = 1,
4207 		};
4208 		return snd_interval_refine(c, &t);
4209 	} else if (r->max < 64000) {
4210 		struct snd_interval t = {
4211 			.min = hdsp->ss_in_channels,
4212 			.max = hdsp->ss_in_channels,
4213 			.integer = 1,
4214 		};
4215 		return snd_interval_refine(c, &t);
4216 	}
4217 	return 0;
4218 }
4219 
4220 static int snd_hdsp_hw_rule_out_channels_rate(struct snd_pcm_hw_params *params,
4221 					     struct snd_pcm_hw_rule *rule)
4222 {
4223 	struct hdsp *hdsp = rule->private;
4224 	struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
4225 	struct snd_interval *r = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
4226 	if (r->min > 96000 && hdsp->io_type == H9632) {
4227 		struct snd_interval t = {
4228 			.min = hdsp->qs_out_channels,
4229 			.max = hdsp->qs_out_channels,
4230 			.integer = 1,
4231 		};
4232 		return snd_interval_refine(c, &t);
4233 	} else if (r->min > 48000 && r->max <= 96000) {
4234 		struct snd_interval t = {
4235 			.min = hdsp->ds_out_channels,
4236 			.max = hdsp->ds_out_channels,
4237 			.integer = 1,
4238 		};
4239 		return snd_interval_refine(c, &t);
4240 	} else if (r->max < 64000) {
4241 		struct snd_interval t = {
4242 			.min = hdsp->ss_out_channels,
4243 			.max = hdsp->ss_out_channels,
4244 			.integer = 1,
4245 		};
4246 		return snd_interval_refine(c, &t);
4247 	}
4248 	return 0;
4249 }
4250 
4251 static int snd_hdsp_hw_rule_rate_out_channels(struct snd_pcm_hw_params *params,
4252 					     struct snd_pcm_hw_rule *rule)
4253 {
4254 	struct hdsp *hdsp = rule->private;
4255 	struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
4256 	struct snd_interval *r = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
4257 	if (c->min >= hdsp->ss_out_channels) {
4258 		struct snd_interval t = {
4259 			.min = 32000,
4260 			.max = 48000,
4261 			.integer = 1,
4262 		};
4263 		return snd_interval_refine(r, &t);
4264 	} else if (c->max <= hdsp->qs_out_channels && hdsp->io_type == H9632) {
4265 		struct snd_interval t = {
4266 			.min = 128000,
4267 			.max = 192000,
4268 			.integer = 1,
4269 		};
4270 		return snd_interval_refine(r, &t);
4271 	} else if (c->max <= hdsp->ds_out_channels) {
4272 		struct snd_interval t = {
4273 			.min = 64000,
4274 			.max = 96000,
4275 			.integer = 1,
4276 		};
4277 		return snd_interval_refine(r, &t);
4278 	}
4279 	return 0;
4280 }
4281 
4282 static int snd_hdsp_hw_rule_rate_in_channels(struct snd_pcm_hw_params *params,
4283 					     struct snd_pcm_hw_rule *rule)
4284 {
4285 	struct hdsp *hdsp = rule->private;
4286 	struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
4287 	struct snd_interval *r = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
4288 	if (c->min >= hdsp->ss_in_channels) {
4289 		struct snd_interval t = {
4290 			.min = 32000,
4291 			.max = 48000,
4292 			.integer = 1,
4293 		};
4294 		return snd_interval_refine(r, &t);
4295 	} else if (c->max <= hdsp->qs_in_channels && hdsp->io_type == H9632) {
4296 		struct snd_interval t = {
4297 			.min = 128000,
4298 			.max = 192000,
4299 			.integer = 1,
4300 		};
4301 		return snd_interval_refine(r, &t);
4302 	} else if (c->max <= hdsp->ds_in_channels) {
4303 		struct snd_interval t = {
4304 			.min = 64000,
4305 			.max = 96000,
4306 			.integer = 1,
4307 		};
4308 		return snd_interval_refine(r, &t);
4309 	}
4310 	return 0;
4311 }
4312 
4313 static int snd_hdsp_playback_open(struct snd_pcm_substream *substream)
4314 {
4315 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
4316 	struct snd_pcm_runtime *runtime = substream->runtime;
4317 
4318 	if (hdsp_check_for_iobox (hdsp))
4319 		return -EIO;
4320 
4321 	if (hdsp_check_for_firmware(hdsp, 1))
4322 		return -EIO;
4323 
4324 	spin_lock_irq(&hdsp->lock);
4325 
4326 	snd_pcm_set_sync(substream);
4327 
4328         runtime->hw = snd_hdsp_playback_subinfo;
4329 	runtime->dma_area = hdsp->playback_buffer;
4330 	runtime->dma_bytes = HDSP_DMA_AREA_BYTES;
4331 
4332 	hdsp->playback_pid = current->pid;
4333 	hdsp->playback_substream = substream;
4334 
4335 	spin_unlock_irq(&hdsp->lock);
4336 
4337 	snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
4338 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hdsp_hw_constraints_period_sizes);
4339 	if (hdsp->clock_source_locked) {
4340 		runtime->hw.rate_min = runtime->hw.rate_max = hdsp->system_sample_rate;
4341 	} else if (hdsp->io_type == H9632) {
4342 		runtime->hw.rate_max = 192000;
4343 		runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
4344 		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hdsp_hw_constraints_9632_sample_rates);
4345 	}
4346 	if (hdsp->io_type == H9632) {
4347 		runtime->hw.channels_min = hdsp->qs_out_channels;
4348 		runtime->hw.channels_max = hdsp->ss_out_channels;
4349 	}
4350 
4351 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
4352 			     snd_hdsp_hw_rule_out_channels, hdsp,
4353 			     SNDRV_PCM_HW_PARAM_CHANNELS, -1);
4354 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
4355 			     snd_hdsp_hw_rule_out_channels_rate, hdsp,
4356 			     SNDRV_PCM_HW_PARAM_RATE, -1);
4357 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
4358 			     snd_hdsp_hw_rule_rate_out_channels, hdsp,
4359 			     SNDRV_PCM_HW_PARAM_CHANNELS, -1);
4360 
4361 	hdsp->creg_spdif_stream = hdsp->creg_spdif;
4362 	hdsp->spdif_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
4363 	snd_ctl_notify(hdsp->card, SNDRV_CTL_EVENT_MASK_VALUE |
4364 		       SNDRV_CTL_EVENT_MASK_INFO, &hdsp->spdif_ctl->id);
4365 	return 0;
4366 }
4367 
4368 static int snd_hdsp_playback_release(struct snd_pcm_substream *substream)
4369 {
4370 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
4371 
4372 	spin_lock_irq(&hdsp->lock);
4373 
4374 	hdsp->playback_pid = -1;
4375 	hdsp->playback_substream = NULL;
4376 
4377 	spin_unlock_irq(&hdsp->lock);
4378 
4379 	hdsp->spdif_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
4380 	snd_ctl_notify(hdsp->card, SNDRV_CTL_EVENT_MASK_VALUE |
4381 		       SNDRV_CTL_EVENT_MASK_INFO, &hdsp->spdif_ctl->id);
4382 	return 0;
4383 }
4384 
4385 
4386 static int snd_hdsp_capture_open(struct snd_pcm_substream *substream)
4387 {
4388 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
4389 	struct snd_pcm_runtime *runtime = substream->runtime;
4390 
4391 	if (hdsp_check_for_iobox (hdsp))
4392 		return -EIO;
4393 
4394 	if (hdsp_check_for_firmware(hdsp, 1))
4395 		return -EIO;
4396 
4397 	spin_lock_irq(&hdsp->lock);
4398 
4399 	snd_pcm_set_sync(substream);
4400 
4401 	runtime->hw = snd_hdsp_capture_subinfo;
4402 	runtime->dma_area = hdsp->capture_buffer;
4403 	runtime->dma_bytes = HDSP_DMA_AREA_BYTES;
4404 
4405 	hdsp->capture_pid = current->pid;
4406 	hdsp->capture_substream = substream;
4407 
4408 	spin_unlock_irq(&hdsp->lock);
4409 
4410 	snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
4411 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hdsp_hw_constraints_period_sizes);
4412 	if (hdsp->io_type == H9632) {
4413 		runtime->hw.channels_min = hdsp->qs_in_channels;
4414 		runtime->hw.channels_max = hdsp->ss_in_channels;
4415 		runtime->hw.rate_max = 192000;
4416 		runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
4417 		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hdsp_hw_constraints_9632_sample_rates);
4418 	}
4419 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
4420 			     snd_hdsp_hw_rule_in_channels, hdsp,
4421 			     SNDRV_PCM_HW_PARAM_CHANNELS, -1);
4422 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
4423 			     snd_hdsp_hw_rule_in_channels_rate, hdsp,
4424 			     SNDRV_PCM_HW_PARAM_RATE, -1);
4425 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
4426 			     snd_hdsp_hw_rule_rate_in_channels, hdsp,
4427 			     SNDRV_PCM_HW_PARAM_CHANNELS, -1);
4428 	return 0;
4429 }
4430 
4431 static int snd_hdsp_capture_release(struct snd_pcm_substream *substream)
4432 {
4433 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
4434 
4435 	spin_lock_irq(&hdsp->lock);
4436 
4437 	hdsp->capture_pid = -1;
4438 	hdsp->capture_substream = NULL;
4439 
4440 	spin_unlock_irq(&hdsp->lock);
4441 	return 0;
4442 }
4443 
4444 /* helper functions for copying meter values */
4445 static inline int copy_u32_le(void __user *dest, void __iomem *src)
4446 {
4447 	u32 val = readl(src);
4448 	return copy_to_user(dest, &val, 4);
4449 }
4450 
4451 static inline int copy_u64_le(void __user *dest, void __iomem *src_low, void __iomem *src_high)
4452 {
4453 	u32 rms_low, rms_high;
4454 	u64 rms;
4455 	rms_low = readl(src_low);
4456 	rms_high = readl(src_high);
4457 	rms = ((u64)rms_high << 32) | rms_low;
4458 	return copy_to_user(dest, &rms, 8);
4459 }
4460 
4461 static inline int copy_u48_le(void __user *dest, void __iomem *src_low, void __iomem *src_high)
4462 {
4463 	u32 rms_low, rms_high;
4464 	u64 rms;
4465 	rms_low = readl(src_low) & 0xffffff00;
4466 	rms_high = readl(src_high) & 0xffffff00;
4467 	rms = ((u64)rms_high << 32) | rms_low;
4468 	return copy_to_user(dest, &rms, 8);
4469 }
4470 
4471 static int hdsp_9652_get_peak(struct hdsp *hdsp, struct hdsp_peak_rms __user *peak_rms)
4472 {
4473 	int doublespeed = 0;
4474 	int i, j, channels, ofs;
4475 
4476 	if (hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DoubleSpeedStatus)
4477 		doublespeed = 1;
4478 	channels = doublespeed ? 14 : 26;
4479 	for (i = 0, j = 0; i < 26; ++i) {
4480 		if (doublespeed && (i & 4))
4481 			continue;
4482 		ofs = HDSP_9652_peakBase - j * 4;
4483 		if (copy_u32_le(&peak_rms->input_peaks[i], hdsp->iobase + ofs))
4484 			return -EFAULT;
4485 		ofs -= channels * 4;
4486 		if (copy_u32_le(&peak_rms->playback_peaks[i], hdsp->iobase + ofs))
4487 			return -EFAULT;
4488 		ofs -= channels * 4;
4489 		if (copy_u32_le(&peak_rms->output_peaks[i], hdsp->iobase + ofs))
4490 			return -EFAULT;
4491 		ofs = HDSP_9652_rmsBase + j * 8;
4492 		if (copy_u48_le(&peak_rms->input_rms[i], hdsp->iobase + ofs,
4493 				hdsp->iobase + ofs + 4))
4494 			return -EFAULT;
4495 		ofs += channels * 8;
4496 		if (copy_u48_le(&peak_rms->playback_rms[i], hdsp->iobase + ofs,
4497 				hdsp->iobase + ofs + 4))
4498 			return -EFAULT;
4499 		ofs += channels * 8;
4500 		if (copy_u48_le(&peak_rms->output_rms[i], hdsp->iobase + ofs,
4501 				hdsp->iobase + ofs + 4))
4502 			return -EFAULT;
4503 		j++;
4504 	}
4505 	return 0;
4506 }
4507 
4508 static int hdsp_9632_get_peak(struct hdsp *hdsp, struct hdsp_peak_rms __user *peak_rms)
4509 {
4510 	int i, j;
4511 	struct hdsp_9632_meters __iomem *m;
4512 	int doublespeed = 0;
4513 
4514 	if (hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DoubleSpeedStatus)
4515 		doublespeed = 1;
4516 	m = (struct hdsp_9632_meters __iomem *)(hdsp->iobase+HDSP_9632_metersBase);
4517 	for (i = 0, j = 0; i < 16; ++i, ++j) {
4518 		if (copy_u32_le(&peak_rms->input_peaks[i], &m->input_peak[j]))
4519 			return -EFAULT;
4520 		if (copy_u32_le(&peak_rms->playback_peaks[i], &m->playback_peak[j]))
4521 			return -EFAULT;
4522 		if (copy_u32_le(&peak_rms->output_peaks[i], &m->output_peak[j]))
4523 			return -EFAULT;
4524 		if (copy_u64_le(&peak_rms->input_rms[i], &m->input_rms_low[j],
4525 				&m->input_rms_high[j]))
4526 			return -EFAULT;
4527 		if (copy_u64_le(&peak_rms->playback_rms[i], &m->playback_rms_low[j],
4528 				&m->playback_rms_high[j]))
4529 			return -EFAULT;
4530 		if (copy_u64_le(&peak_rms->output_rms[i], &m->output_rms_low[j],
4531 				&m->output_rms_high[j]))
4532 			return -EFAULT;
4533 		if (doublespeed && i == 3) i += 4;
4534 	}
4535 	return 0;
4536 }
4537 
4538 static int hdsp_get_peak(struct hdsp *hdsp, struct hdsp_peak_rms __user *peak_rms)
4539 {
4540 	int i;
4541 
4542 	for (i = 0; i < 26; i++) {
4543 		if (copy_u32_le(&peak_rms->playback_peaks[i],
4544 				hdsp->iobase + HDSP_playbackPeakLevel + i * 4))
4545 			return -EFAULT;
4546 		if (copy_u32_le(&peak_rms->input_peaks[i],
4547 				hdsp->iobase + HDSP_inputPeakLevel + i * 4))
4548 			return -EFAULT;
4549 	}
4550 	for (i = 0; i < 28; i++) {
4551 		if (copy_u32_le(&peak_rms->output_peaks[i],
4552 				hdsp->iobase + HDSP_outputPeakLevel + i * 4))
4553 			return -EFAULT;
4554 	}
4555 	for (i = 0; i < 26; ++i) {
4556 		if (copy_u64_le(&peak_rms->playback_rms[i],
4557 				hdsp->iobase + HDSP_playbackRmsLevel + i * 8 + 4,
4558 				hdsp->iobase + HDSP_playbackRmsLevel + i * 8))
4559 			return -EFAULT;
4560 		if (copy_u64_le(&peak_rms->input_rms[i],
4561 				hdsp->iobase + HDSP_inputRmsLevel + i * 8 + 4,
4562 				hdsp->iobase + HDSP_inputRmsLevel + i * 8))
4563 			return -EFAULT;
4564 	}
4565 	return 0;
4566 }
4567 
4568 static int snd_hdsp_hwdep_ioctl(struct snd_hwdep *hw, struct file *file, unsigned int cmd, unsigned long arg)
4569 {
4570 	struct hdsp *hdsp = (struct hdsp *)hw->private_data;
4571 	void __user *argp = (void __user *)arg;
4572 	int err;
4573 
4574 	switch (cmd) {
4575 	case SNDRV_HDSP_IOCTL_GET_PEAK_RMS: {
4576 		struct hdsp_peak_rms __user *peak_rms = (struct hdsp_peak_rms __user *)arg;
4577 
4578 		err = hdsp_check_for_iobox(hdsp);
4579 		if (err < 0)
4580 			return err;
4581 
4582 		err = hdsp_check_for_firmware(hdsp, 1);
4583 		if (err < 0)
4584 			return err;
4585 
4586 		if (!(hdsp->state & HDSP_FirmwareLoaded)) {
4587 			snd_printk(KERN_ERR "Hammerfall-DSP: firmware needs to be uploaded to the card.\n");
4588 			return -EINVAL;
4589 		}
4590 
4591 		switch (hdsp->io_type) {
4592 		case H9652:
4593 			return hdsp_9652_get_peak(hdsp, peak_rms);
4594 		case H9632:
4595 			return hdsp_9632_get_peak(hdsp, peak_rms);
4596 		default:
4597 			return hdsp_get_peak(hdsp, peak_rms);
4598 		}
4599 	}
4600 	case SNDRV_HDSP_IOCTL_GET_CONFIG_INFO: {
4601 		struct hdsp_config_info info;
4602 		unsigned long flags;
4603 		int i;
4604 
4605 		err = hdsp_check_for_iobox(hdsp);
4606 		if (err < 0)
4607 			return err;
4608 
4609 		err = hdsp_check_for_firmware(hdsp, 1);
4610 		if (err < 0)
4611 			return err;
4612 
4613 		spin_lock_irqsave(&hdsp->lock, flags);
4614 		info.pref_sync_ref = (unsigned char)hdsp_pref_sync_ref(hdsp);
4615 		info.wordclock_sync_check = (unsigned char)hdsp_wc_sync_check(hdsp);
4616 		if (hdsp->io_type != H9632)
4617 		    info.adatsync_sync_check = (unsigned char)hdsp_adatsync_sync_check(hdsp);
4618 		info.spdif_sync_check = (unsigned char)hdsp_spdif_sync_check(hdsp);
4619 		for (i = 0; i < ((hdsp->io_type != Multiface && hdsp->io_type != H9632) ? 3 : 1); ++i)
4620 			info.adat_sync_check[i] = (unsigned char)hdsp_adat_sync_check(hdsp, i);
4621 		info.spdif_in = (unsigned char)hdsp_spdif_in(hdsp);
4622 		info.spdif_out = (unsigned char)hdsp_spdif_out(hdsp);
4623 		info.spdif_professional = (unsigned char)hdsp_spdif_professional(hdsp);
4624 		info.spdif_emphasis = (unsigned char)hdsp_spdif_emphasis(hdsp);
4625 		info.spdif_nonaudio = (unsigned char)hdsp_spdif_nonaudio(hdsp);
4626 		info.spdif_sample_rate = hdsp_spdif_sample_rate(hdsp);
4627 		info.system_sample_rate = hdsp->system_sample_rate;
4628 		info.autosync_sample_rate = hdsp_external_sample_rate(hdsp);
4629 		info.system_clock_mode = (unsigned char)hdsp_system_clock_mode(hdsp);
4630 		info.clock_source = (unsigned char)hdsp_clock_source(hdsp);
4631 		info.autosync_ref = (unsigned char)hdsp_autosync_ref(hdsp);
4632 		info.line_out = (unsigned char)hdsp_line_out(hdsp);
4633 		if (hdsp->io_type == H9632) {
4634 			info.da_gain = (unsigned char)hdsp_da_gain(hdsp);
4635 			info.ad_gain = (unsigned char)hdsp_ad_gain(hdsp);
4636 			info.phone_gain = (unsigned char)hdsp_phone_gain(hdsp);
4637 			info.xlr_breakout_cable = (unsigned char)hdsp_xlr_breakout_cable(hdsp);
4638 
4639 		}
4640 		if (hdsp->io_type == H9632 || hdsp->io_type == H9652)
4641 			info.analog_extension_board = (unsigned char)hdsp_aeb(hdsp);
4642 		spin_unlock_irqrestore(&hdsp->lock, flags);
4643 		if (copy_to_user(argp, &info, sizeof(info)))
4644 			return -EFAULT;
4645 		break;
4646 	}
4647 	case SNDRV_HDSP_IOCTL_GET_9632_AEB: {
4648 		struct hdsp_9632_aeb h9632_aeb;
4649 
4650 		if (hdsp->io_type != H9632) return -EINVAL;
4651 		h9632_aeb.aebi = hdsp->ss_in_channels - H9632_SS_CHANNELS;
4652 		h9632_aeb.aebo = hdsp->ss_out_channels - H9632_SS_CHANNELS;
4653 		if (copy_to_user(argp, &h9632_aeb, sizeof(h9632_aeb)))
4654 			return -EFAULT;
4655 		break;
4656 	}
4657 	case SNDRV_HDSP_IOCTL_GET_VERSION: {
4658 		struct hdsp_version hdsp_version;
4659 		int err;
4660 
4661 		if (hdsp->io_type == H9652 || hdsp->io_type == H9632) return -EINVAL;
4662 		if (hdsp->io_type == Undefined) {
4663 			if ((err = hdsp_get_iobox_version(hdsp)) < 0)
4664 				return err;
4665 		}
4666 		hdsp_version.io_type = hdsp->io_type;
4667 		hdsp_version.firmware_rev = hdsp->firmware_rev;
4668 		if ((err = copy_to_user(argp, &hdsp_version, sizeof(hdsp_version))))
4669 		    	return -EFAULT;
4670 		break;
4671 	}
4672 	case SNDRV_HDSP_IOCTL_UPLOAD_FIRMWARE: {
4673 		struct hdsp_firmware __user *firmware;
4674 		u32 __user *firmware_data;
4675 		int err;
4676 
4677 		if (hdsp->io_type == H9652 || hdsp->io_type == H9632) return -EINVAL;
4678 		/* SNDRV_HDSP_IOCTL_GET_VERSION must have been called */
4679 		if (hdsp->io_type == Undefined) return -EINVAL;
4680 
4681 		if (hdsp->state & (HDSP_FirmwareCached | HDSP_FirmwareLoaded))
4682 			return -EBUSY;
4683 
4684 		snd_printk(KERN_INFO "Hammerfall-DSP: initializing firmware upload\n");
4685 		firmware = (struct hdsp_firmware __user *)argp;
4686 
4687 		if (get_user(firmware_data, &firmware->firmware_data))
4688 			return -EFAULT;
4689 
4690 		if (hdsp_check_for_iobox (hdsp))
4691 			return -EIO;
4692 
4693 		if (copy_from_user(hdsp->firmware_cache, firmware_data, sizeof(hdsp->firmware_cache)) != 0)
4694 			return -EFAULT;
4695 
4696 		hdsp->state |= HDSP_FirmwareCached;
4697 
4698 		if ((err = snd_hdsp_load_firmware_from_cache(hdsp)) < 0)
4699 			return err;
4700 
4701 		if (!(hdsp->state & HDSP_InitializationComplete)) {
4702 			if ((err = snd_hdsp_enable_io(hdsp)) < 0)
4703 				return err;
4704 
4705 			snd_hdsp_initialize_channels(hdsp);
4706 			snd_hdsp_initialize_midi_flush(hdsp);
4707 
4708 			if ((err = snd_hdsp_create_alsa_devices(hdsp->card, hdsp)) < 0) {
4709 				snd_printk(KERN_ERR "Hammerfall-DSP: error creating alsa devices\n");
4710 				return err;
4711 			}
4712 		}
4713 		break;
4714 	}
4715 	case SNDRV_HDSP_IOCTL_GET_MIXER: {
4716 		struct hdsp_mixer __user *mixer = (struct hdsp_mixer __user *)argp;
4717 		if (copy_to_user(mixer->matrix, hdsp->mixer_matrix, sizeof(unsigned short)*HDSP_MATRIX_MIXER_SIZE))
4718 			return -EFAULT;
4719 		break;
4720 	}
4721 	default:
4722 		return -EINVAL;
4723 	}
4724 	return 0;
4725 }
4726 
4727 static struct snd_pcm_ops snd_hdsp_playback_ops = {
4728 	.open =		snd_hdsp_playback_open,
4729 	.close =	snd_hdsp_playback_release,
4730 	.ioctl =	snd_hdsp_ioctl,
4731 	.hw_params =	snd_hdsp_hw_params,
4732 	.prepare =	snd_hdsp_prepare,
4733 	.trigger =	snd_hdsp_trigger,
4734 	.pointer =	snd_hdsp_hw_pointer,
4735 	.copy =		snd_hdsp_playback_copy,
4736 	.silence =	snd_hdsp_hw_silence,
4737 };
4738 
4739 static struct snd_pcm_ops snd_hdsp_capture_ops = {
4740 	.open =		snd_hdsp_capture_open,
4741 	.close =	snd_hdsp_capture_release,
4742 	.ioctl =	snd_hdsp_ioctl,
4743 	.hw_params =	snd_hdsp_hw_params,
4744 	.prepare =	snd_hdsp_prepare,
4745 	.trigger =	snd_hdsp_trigger,
4746 	.pointer =	snd_hdsp_hw_pointer,
4747 	.copy =		snd_hdsp_capture_copy,
4748 };
4749 
4750 static int snd_hdsp_create_hwdep(struct snd_card *card, struct hdsp *hdsp)
4751 {
4752 	struct snd_hwdep *hw;
4753 	int err;
4754 
4755 	if ((err = snd_hwdep_new(card, "HDSP hwdep", 0, &hw)) < 0)
4756 		return err;
4757 
4758 	hdsp->hwdep = hw;
4759 	hw->private_data = hdsp;
4760 	strcpy(hw->name, "HDSP hwdep interface");
4761 
4762 	hw->ops.ioctl = snd_hdsp_hwdep_ioctl;
4763 
4764 	return 0;
4765 }
4766 
4767 static int snd_hdsp_create_pcm(struct snd_card *card, struct hdsp *hdsp)
4768 {
4769 	struct snd_pcm *pcm;
4770 	int err;
4771 
4772 	if ((err = snd_pcm_new(card, hdsp->card_name, 0, 1, 1, &pcm)) < 0)
4773 		return err;
4774 
4775 	hdsp->pcm = pcm;
4776 	pcm->private_data = hdsp;
4777 	strcpy(pcm->name, hdsp->card_name);
4778 
4779 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_hdsp_playback_ops);
4780 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_hdsp_capture_ops);
4781 
4782 	pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
4783 
4784 	return 0;
4785 }
4786 
4787 static void snd_hdsp_9652_enable_mixer (struct hdsp *hdsp)
4788 {
4789         hdsp->control2_register |= HDSP_9652_ENABLE_MIXER;
4790 	hdsp_write (hdsp, HDSP_control2Reg, hdsp->control2_register);
4791 }
4792 
4793 static int snd_hdsp_enable_io (struct hdsp *hdsp)
4794 {
4795 	int i;
4796 
4797 	if (hdsp_fifo_wait (hdsp, 0, 100)) {
4798 		snd_printk(KERN_ERR "Hammerfall-DSP: enable_io fifo_wait failed\n");
4799 		return -EIO;
4800 	}
4801 
4802 	for (i = 0; i < hdsp->max_channels; ++i) {
4803 		hdsp_write (hdsp, HDSP_inputEnable + (4 * i), 1);
4804 		hdsp_write (hdsp, HDSP_outputEnable + (4 * i), 1);
4805 	}
4806 
4807 	return 0;
4808 }
4809 
4810 static void snd_hdsp_initialize_channels(struct hdsp *hdsp)
4811 {
4812 	int status, aebi_channels, aebo_channels;
4813 
4814 	switch (hdsp->io_type) {
4815 	case Digiface:
4816 		hdsp->card_name = "RME Hammerfall DSP + Digiface";
4817 		hdsp->ss_in_channels = hdsp->ss_out_channels = DIGIFACE_SS_CHANNELS;
4818 		hdsp->ds_in_channels = hdsp->ds_out_channels = DIGIFACE_DS_CHANNELS;
4819 		break;
4820 
4821 	case H9652:
4822 		hdsp->card_name = "RME Hammerfall HDSP 9652";
4823 		hdsp->ss_in_channels = hdsp->ss_out_channels = H9652_SS_CHANNELS;
4824 		hdsp->ds_in_channels = hdsp->ds_out_channels = H9652_DS_CHANNELS;
4825 		break;
4826 
4827 	case H9632:
4828 		status = hdsp_read(hdsp, HDSP_statusRegister);
4829 		/* HDSP_AEBx bits are low when AEB are connected */
4830 		aebi_channels = (status & HDSP_AEBI) ? 0 : 4;
4831 		aebo_channels = (status & HDSP_AEBO) ? 0 : 4;
4832 		hdsp->card_name = "RME Hammerfall HDSP 9632";
4833 		hdsp->ss_in_channels = H9632_SS_CHANNELS+aebi_channels;
4834 		hdsp->ds_in_channels = H9632_DS_CHANNELS+aebi_channels;
4835 		hdsp->qs_in_channels = H9632_QS_CHANNELS+aebi_channels;
4836 		hdsp->ss_out_channels = H9632_SS_CHANNELS+aebo_channels;
4837 		hdsp->ds_out_channels = H9632_DS_CHANNELS+aebo_channels;
4838 		hdsp->qs_out_channels = H9632_QS_CHANNELS+aebo_channels;
4839 		break;
4840 
4841 	case Multiface:
4842 		hdsp->card_name = "RME Hammerfall DSP + Multiface";
4843 		hdsp->ss_in_channels = hdsp->ss_out_channels = MULTIFACE_SS_CHANNELS;
4844 		hdsp->ds_in_channels = hdsp->ds_out_channels = MULTIFACE_DS_CHANNELS;
4845 		break;
4846 
4847 	default:
4848  		/* should never get here */
4849 		break;
4850 	}
4851 }
4852 
4853 static void snd_hdsp_initialize_midi_flush (struct hdsp *hdsp)
4854 {
4855 	snd_hdsp_flush_midi_input (hdsp, 0);
4856 	snd_hdsp_flush_midi_input (hdsp, 1);
4857 }
4858 
4859 static int snd_hdsp_create_alsa_devices(struct snd_card *card, struct hdsp *hdsp)
4860 {
4861 	int err;
4862 
4863 	if ((err = snd_hdsp_create_pcm(card, hdsp)) < 0) {
4864 		snd_printk(KERN_ERR "Hammerfall-DSP: Error creating pcm interface\n");
4865 		return err;
4866 	}
4867 
4868 
4869 	if ((err = snd_hdsp_create_midi(card, hdsp, 0)) < 0) {
4870 		snd_printk(KERN_ERR "Hammerfall-DSP: Error creating first midi interface\n");
4871 		return err;
4872 	}
4873 
4874 	if (hdsp->io_type == Digiface || hdsp->io_type == H9652) {
4875 		if ((err = snd_hdsp_create_midi(card, hdsp, 1)) < 0) {
4876 			snd_printk(KERN_ERR "Hammerfall-DSP: Error creating second midi interface\n");
4877 			return err;
4878 		}
4879 	}
4880 
4881 	if ((err = snd_hdsp_create_controls(card, hdsp)) < 0) {
4882 		snd_printk(KERN_ERR "Hammerfall-DSP: Error creating ctl interface\n");
4883 		return err;
4884 	}
4885 
4886 	snd_hdsp_proc_init(hdsp);
4887 
4888 	hdsp->system_sample_rate = -1;
4889 	hdsp->playback_pid = -1;
4890 	hdsp->capture_pid = -1;
4891 	hdsp->capture_substream = NULL;
4892 	hdsp->playback_substream = NULL;
4893 
4894 	if ((err = snd_hdsp_set_defaults(hdsp)) < 0) {
4895 		snd_printk(KERN_ERR "Hammerfall-DSP: Error setting default values\n");
4896 		return err;
4897 	}
4898 
4899 	if (!(hdsp->state & HDSP_InitializationComplete)) {
4900 		strcpy(card->shortname, "Hammerfall DSP");
4901 		sprintf(card->longname, "%s at 0x%lx, irq %d", hdsp->card_name,
4902 			hdsp->port, hdsp->irq);
4903 
4904 		if ((err = snd_card_register(card)) < 0) {
4905 			snd_printk(KERN_ERR "Hammerfall-DSP: error registering card\n");
4906 			return err;
4907 		}
4908 		hdsp->state |= HDSP_InitializationComplete;
4909 	}
4910 
4911 	return 0;
4912 }
4913 
4914 #ifdef HDSP_FW_LOADER
4915 /* load firmware via hotplug fw loader */
4916 static int hdsp_request_fw_loader(struct hdsp *hdsp)
4917 {
4918 	const char *fwfile;
4919 	const struct firmware *fw;
4920 	int err;
4921 
4922 	if (hdsp->io_type == H9652 || hdsp->io_type == H9632)
4923 		return 0;
4924 	if (hdsp->io_type == Undefined) {
4925 		if ((err = hdsp_get_iobox_version(hdsp)) < 0)
4926 			return err;
4927 		if (hdsp->io_type == H9652 || hdsp->io_type == H9632)
4928 			return 0;
4929 	}
4930 
4931 	/* caution: max length of firmware filename is 30! */
4932 	switch (hdsp->io_type) {
4933 	case Multiface:
4934 		if (hdsp->firmware_rev == 0xa)
4935 			fwfile = "multiface_firmware.bin";
4936 		else
4937 			fwfile = "multiface_firmware_rev11.bin";
4938 		break;
4939 	case Digiface:
4940 		if (hdsp->firmware_rev == 0xa)
4941 			fwfile = "digiface_firmware.bin";
4942 		else
4943 			fwfile = "digiface_firmware_rev11.bin";
4944 		break;
4945 	default:
4946 		snd_printk(KERN_ERR "Hammerfall-DSP: invalid io_type %d\n", hdsp->io_type);
4947 		return -EINVAL;
4948 	}
4949 
4950 	if (request_firmware(&fw, fwfile, &hdsp->pci->dev)) {
4951 		snd_printk(KERN_ERR "Hammerfall-DSP: cannot load firmware %s\n", fwfile);
4952 		return -ENOENT;
4953 	}
4954 	if (fw->size < sizeof(hdsp->firmware_cache)) {
4955 		snd_printk(KERN_ERR "Hammerfall-DSP: too short firmware size %d (expected %d)\n",
4956 			   (int)fw->size, (int)sizeof(hdsp->firmware_cache));
4957 		release_firmware(fw);
4958 		return -EINVAL;
4959 	}
4960 
4961 	memcpy(hdsp->firmware_cache, fw->data, sizeof(hdsp->firmware_cache));
4962 
4963 	release_firmware(fw);
4964 
4965 	hdsp->state |= HDSP_FirmwareCached;
4966 
4967 	if ((err = snd_hdsp_load_firmware_from_cache(hdsp)) < 0)
4968 		return err;
4969 
4970 	if (!(hdsp->state & HDSP_InitializationComplete)) {
4971 		if ((err = snd_hdsp_enable_io(hdsp)) < 0)
4972 			return err;
4973 
4974 		if ((err = snd_hdsp_create_hwdep(hdsp->card, hdsp)) < 0) {
4975 			snd_printk(KERN_ERR "Hammerfall-DSP: error creating hwdep device\n");
4976 			return err;
4977 		}
4978 		snd_hdsp_initialize_channels(hdsp);
4979 		snd_hdsp_initialize_midi_flush(hdsp);
4980 		if ((err = snd_hdsp_create_alsa_devices(hdsp->card, hdsp)) < 0) {
4981 			snd_printk(KERN_ERR "Hammerfall-DSP: error creating alsa devices\n");
4982 			return err;
4983 		}
4984 	}
4985 	return 0;
4986 }
4987 #endif
4988 
4989 static int __devinit snd_hdsp_create(struct snd_card *card,
4990 				     struct hdsp *hdsp)
4991 {
4992 	struct pci_dev *pci = hdsp->pci;
4993 	int err;
4994 	int is_9652 = 0;
4995 	int is_9632 = 0;
4996 
4997 	hdsp->irq = -1;
4998 	hdsp->state = 0;
4999 	hdsp->midi[0].rmidi = NULL;
5000 	hdsp->midi[1].rmidi = NULL;
5001 	hdsp->midi[0].input = NULL;
5002 	hdsp->midi[1].input = NULL;
5003 	hdsp->midi[0].output = NULL;
5004 	hdsp->midi[1].output = NULL;
5005 	hdsp->midi[0].pending = 0;
5006 	hdsp->midi[1].pending = 0;
5007 	spin_lock_init(&hdsp->midi[0].lock);
5008 	spin_lock_init(&hdsp->midi[1].lock);
5009 	hdsp->iobase = NULL;
5010 	hdsp->control_register = 0;
5011 	hdsp->control2_register = 0;
5012 	hdsp->io_type = Undefined;
5013 	hdsp->max_channels = 26;
5014 
5015 	hdsp->card = card;
5016 
5017 	spin_lock_init(&hdsp->lock);
5018 
5019 	tasklet_init(&hdsp->midi_tasklet, hdsp_midi_tasklet, (unsigned long)hdsp);
5020 
5021 	pci_read_config_word(hdsp->pci, PCI_CLASS_REVISION, &hdsp->firmware_rev);
5022 	hdsp->firmware_rev &= 0xff;
5023 
5024 	/* From Martin Bjoernsen :
5025 	    "It is important that the card's latency timer register in
5026 	    the PCI configuration space is set to a value much larger
5027 	    than 0 by the computer's BIOS or the driver.
5028 	    The windows driver always sets this 8 bit register [...]
5029 	    to its maximum 255 to avoid problems with some computers."
5030 	*/
5031 	pci_write_config_byte(hdsp->pci, PCI_LATENCY_TIMER, 0xFF);
5032 
5033 	strcpy(card->driver, "H-DSP");
5034 	strcpy(card->mixername, "Xilinx FPGA");
5035 
5036 	if (hdsp->firmware_rev < 0xa)
5037 		return -ENODEV;
5038 	else if (hdsp->firmware_rev < 0x64)
5039 		hdsp->card_name = "RME Hammerfall DSP";
5040 	else if (hdsp->firmware_rev < 0x96) {
5041 		hdsp->card_name = "RME HDSP 9652";
5042 		is_9652 = 1;
5043 	} else {
5044 		hdsp->card_name = "RME HDSP 9632";
5045 		hdsp->max_channels = 16;
5046 		is_9632 = 1;
5047 	}
5048 
5049 	if ((err = pci_enable_device(pci)) < 0)
5050 		return err;
5051 
5052 	pci_set_master(hdsp->pci);
5053 
5054 	if ((err = pci_request_regions(pci, "hdsp")) < 0)
5055 		return err;
5056 	hdsp->port = pci_resource_start(pci, 0);
5057 	if ((hdsp->iobase = ioremap_nocache(hdsp->port, HDSP_IO_EXTENT)) == NULL) {
5058 		snd_printk(KERN_ERR "Hammerfall-DSP: unable to remap region 0x%lx-0x%lx\n", hdsp->port, hdsp->port + HDSP_IO_EXTENT - 1);
5059 		return -EBUSY;
5060 	}
5061 
5062 	if (request_irq(pci->irq, snd_hdsp_interrupt, IRQF_SHARED,
5063 			"hdsp", hdsp)) {
5064 		snd_printk(KERN_ERR "Hammerfall-DSP: unable to use IRQ %d\n", pci->irq);
5065 		return -EBUSY;
5066 	}
5067 
5068 	hdsp->irq = pci->irq;
5069 	hdsp->precise_ptr = 0;
5070 	hdsp->use_midi_tasklet = 1;
5071 	hdsp->dds_value = 0;
5072 
5073 	if ((err = snd_hdsp_initialize_memory(hdsp)) < 0)
5074 		return err;
5075 
5076 	if (!is_9652 && !is_9632) {
5077 		/* we wait a maximum of 10 seconds to let freshly
5078 		 * inserted cardbus cards do their hardware init */
5079 		err = hdsp_wait_for_iobox(hdsp, 1000, 10);
5080 
5081 		if (err < 0)
5082 			return err;
5083 
5084 		if ((hdsp_read (hdsp, HDSP_statusRegister) & HDSP_DllError) != 0) {
5085 #ifdef HDSP_FW_LOADER
5086 			if ((err = hdsp_request_fw_loader(hdsp)) < 0)
5087 				/* we don't fail as this can happen
5088 				   if userspace is not ready for
5089 				   firmware upload
5090 				*/
5091 				snd_printk(KERN_ERR "Hammerfall-DSP: couldn't get firmware from userspace. try using hdsploader\n");
5092 			else
5093 				/* init is complete, we return */
5094 				return 0;
5095 #endif
5096 			/* we defer initialization */
5097 			snd_printk(KERN_INFO "Hammerfall-DSP: card initialization pending : waiting for firmware\n");
5098 			if ((err = snd_hdsp_create_hwdep(card, hdsp)) < 0)
5099 				return err;
5100 			return 0;
5101 		} else {
5102 			snd_printk(KERN_INFO "Hammerfall-DSP: Firmware already present, initializing card.\n");
5103 			if (hdsp_read(hdsp, HDSP_status2Register) & HDSP_version1)
5104 				hdsp->io_type = Multiface;
5105 			else
5106 				hdsp->io_type = Digiface;
5107 		}
5108 	}
5109 
5110 	if ((err = snd_hdsp_enable_io(hdsp)) != 0)
5111 		return err;
5112 
5113 	if (is_9652)
5114 	        hdsp->io_type = H9652;
5115 
5116 	if (is_9632)
5117 		hdsp->io_type = H9632;
5118 
5119 	if ((err = snd_hdsp_create_hwdep(card, hdsp)) < 0)
5120 		return err;
5121 
5122 	snd_hdsp_initialize_channels(hdsp);
5123 	snd_hdsp_initialize_midi_flush(hdsp);
5124 
5125 	hdsp->state |= HDSP_FirmwareLoaded;
5126 
5127 	if ((err = snd_hdsp_create_alsa_devices(card, hdsp)) < 0)
5128 		return err;
5129 
5130 	return 0;
5131 }
5132 
5133 static int snd_hdsp_free(struct hdsp *hdsp)
5134 {
5135 	if (hdsp->port) {
5136 		/* stop the audio, and cancel all interrupts */
5137 		tasklet_kill(&hdsp->midi_tasklet);
5138 		hdsp->control_register &= ~(HDSP_Start|HDSP_AudioInterruptEnable|HDSP_Midi0InterruptEnable|HDSP_Midi1InterruptEnable);
5139 		hdsp_write (hdsp, HDSP_controlRegister, hdsp->control_register);
5140 	}
5141 
5142 	if (hdsp->irq >= 0)
5143 		free_irq(hdsp->irq, (void *)hdsp);
5144 
5145 	snd_hdsp_free_buffers(hdsp);
5146 
5147 	if (hdsp->iobase)
5148 		iounmap(hdsp->iobase);
5149 
5150 	if (hdsp->port)
5151 		pci_release_regions(hdsp->pci);
5152 
5153 	pci_disable_device(hdsp->pci);
5154 	return 0;
5155 }
5156 
5157 static void snd_hdsp_card_free(struct snd_card *card)
5158 {
5159 	struct hdsp *hdsp = (struct hdsp *) card->private_data;
5160 
5161 	if (hdsp)
5162 		snd_hdsp_free(hdsp);
5163 }
5164 
5165 static int __devinit snd_hdsp_probe(struct pci_dev *pci,
5166 				    const struct pci_device_id *pci_id)
5167 {
5168 	static int dev;
5169 	struct hdsp *hdsp;
5170 	struct snd_card *card;
5171 	int err;
5172 
5173 	if (dev >= SNDRV_CARDS)
5174 		return -ENODEV;
5175 	if (!enable[dev]) {
5176 		dev++;
5177 		return -ENOENT;
5178 	}
5179 
5180 	err = snd_card_create(index[dev], id[dev], THIS_MODULE,
5181 			      sizeof(struct hdsp), &card);
5182 	if (err < 0)
5183 		return err;
5184 
5185 	hdsp = (struct hdsp *) card->private_data;
5186 	card->private_free = snd_hdsp_card_free;
5187 	hdsp->dev = dev;
5188 	hdsp->pci = pci;
5189 	snd_card_set_dev(card, &pci->dev);
5190 
5191 	if ((err = snd_hdsp_create(card, hdsp)) < 0) {
5192 		snd_card_free(card);
5193 		return err;
5194 	}
5195 
5196 	strcpy(card->shortname, "Hammerfall DSP");
5197 	sprintf(card->longname, "%s at 0x%lx, irq %d", hdsp->card_name,
5198 		hdsp->port, hdsp->irq);
5199 
5200 	if ((err = snd_card_register(card)) < 0) {
5201 		snd_card_free(card);
5202 		return err;
5203 	}
5204 	pci_set_drvdata(pci, card);
5205 	dev++;
5206 	return 0;
5207 }
5208 
5209 static void __devexit snd_hdsp_remove(struct pci_dev *pci)
5210 {
5211 	snd_card_free(pci_get_drvdata(pci));
5212 	pci_set_drvdata(pci, NULL);
5213 }
5214 
5215 static struct pci_driver driver = {
5216 	.name =     "RME Hammerfall DSP",
5217 	.id_table = snd_hdsp_ids,
5218 	.probe =    snd_hdsp_probe,
5219 	.remove = __devexit_p(snd_hdsp_remove),
5220 };
5221 
5222 static int __init alsa_card_hdsp_init(void)
5223 {
5224 	return pci_register_driver(&driver);
5225 }
5226 
5227 static void __exit alsa_card_hdsp_exit(void)
5228 {
5229 	pci_unregister_driver(&driver);
5230 }
5231 
5232 module_init(alsa_card_hdsp_init)
5233 module_exit(alsa_card_hdsp_exit)
5234