xref: /openbmc/linux/sound/pci/rme96.c (revision 8fa5723aa7e053d498336b48448b292fc2e0458b)
1 /*
2  *   ALSA driver for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST audio
3  *   interfaces
4  *
5  *	Copyright (c) 2000, 2001 Anders Torger <torger@ludd.luth.se>
6  *
7  *      Thanks to Henk Hesselink <henk@anda.nl> for the analog volume control
8  *      code.
9  *
10  *   This program is free software; you can redistribute it and/or modify
11  *   it under the terms of the GNU General Public License as published by
12  *   the Free Software Foundation; either version 2 of the License, or
13  *   (at your option) any later version.
14  *
15  *   This program is distributed in the hope that it will be useful,
16  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
17  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  *   GNU General Public License for more details.
19  *
20  *   You should have received a copy of the GNU General Public License
21  *   along with this program; if not, write to the Free Software
22  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
23  *
24  */
25 
26 #include <linux/delay.h>
27 #include <linux/init.h>
28 #include <linux/interrupt.h>
29 #include <linux/pci.h>
30 #include <linux/slab.h>
31 #include <linux/moduleparam.h>
32 
33 #include <sound/core.h>
34 #include <sound/info.h>
35 #include <sound/control.h>
36 #include <sound/pcm.h>
37 #include <sound/pcm_params.h>
38 #include <sound/asoundef.h>
39 #include <sound/initval.h>
40 
41 #include <asm/io.h>
42 
43 /* note, two last pcis should be equal, it is not a bug */
44 
45 MODULE_AUTHOR("Anders Torger <torger@ludd.luth.se>");
46 MODULE_DESCRIPTION("RME Digi96, Digi96/8, Digi96/8 PRO, Digi96/8 PST, "
47 		   "Digi96/8 PAD");
48 MODULE_LICENSE("GPL");
49 MODULE_SUPPORTED_DEVICE("{{RME,Digi96},"
50 		"{RME,Digi96/8},"
51 		"{RME,Digi96/8 PRO},"
52 		"{RME,Digi96/8 PST},"
53 		"{RME,Digi96/8 PAD}}");
54 
55 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
56 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
57 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable this card */
58 
59 module_param_array(index, int, NULL, 0444);
60 MODULE_PARM_DESC(index, "Index value for RME Digi96 soundcard.");
61 module_param_array(id, charp, NULL, 0444);
62 MODULE_PARM_DESC(id, "ID string for RME Digi96 soundcard.");
63 module_param_array(enable, bool, NULL, 0444);
64 MODULE_PARM_DESC(enable, "Enable RME Digi96 soundcard.");
65 
66 /*
67  * Defines for RME Digi96 series, from internal RME reference documents
68  * dated 12.01.00
69  */
70 
71 #define RME96_SPDIF_NCHANNELS 2
72 
73 /* Playback and capture buffer size */
74 #define RME96_BUFFER_SIZE 0x10000
75 
76 /* IO area size */
77 #define RME96_IO_SIZE 0x60000
78 
79 /* IO area offsets */
80 #define RME96_IO_PLAY_BUFFER      0x0
81 #define RME96_IO_REC_BUFFER       0x10000
82 #define RME96_IO_CONTROL_REGISTER 0x20000
83 #define RME96_IO_ADDITIONAL_REG   0x20004
84 #define RME96_IO_CONFIRM_PLAY_IRQ 0x20008
85 #define RME96_IO_CONFIRM_REC_IRQ  0x2000C
86 #define RME96_IO_SET_PLAY_POS     0x40000
87 #define RME96_IO_RESET_PLAY_POS   0x4FFFC
88 #define RME96_IO_SET_REC_POS      0x50000
89 #define RME96_IO_RESET_REC_POS    0x5FFFC
90 #define RME96_IO_GET_PLAY_POS     0x20000
91 #define RME96_IO_GET_REC_POS      0x30000
92 
93 /* Write control register bits */
94 #define RME96_WCR_START     (1 << 0)
95 #define RME96_WCR_START_2   (1 << 1)
96 #define RME96_WCR_GAIN_0    (1 << 2)
97 #define RME96_WCR_GAIN_1    (1 << 3)
98 #define RME96_WCR_MODE24    (1 << 4)
99 #define RME96_WCR_MODE24_2  (1 << 5)
100 #define RME96_WCR_BM        (1 << 6)
101 #define RME96_WCR_BM_2      (1 << 7)
102 #define RME96_WCR_ADAT      (1 << 8)
103 #define RME96_WCR_FREQ_0    (1 << 9)
104 #define RME96_WCR_FREQ_1    (1 << 10)
105 #define RME96_WCR_DS        (1 << 11)
106 #define RME96_WCR_PRO       (1 << 12)
107 #define RME96_WCR_EMP       (1 << 13)
108 #define RME96_WCR_SEL       (1 << 14)
109 #define RME96_WCR_MASTER    (1 << 15)
110 #define RME96_WCR_PD        (1 << 16)
111 #define RME96_WCR_INP_0     (1 << 17)
112 #define RME96_WCR_INP_1     (1 << 18)
113 #define RME96_WCR_THRU_0    (1 << 19)
114 #define RME96_WCR_THRU_1    (1 << 20)
115 #define RME96_WCR_THRU_2    (1 << 21)
116 #define RME96_WCR_THRU_3    (1 << 22)
117 #define RME96_WCR_THRU_4    (1 << 23)
118 #define RME96_WCR_THRU_5    (1 << 24)
119 #define RME96_WCR_THRU_6    (1 << 25)
120 #define RME96_WCR_THRU_7    (1 << 26)
121 #define RME96_WCR_DOLBY     (1 << 27)
122 #define RME96_WCR_MONITOR_0 (1 << 28)
123 #define RME96_WCR_MONITOR_1 (1 << 29)
124 #define RME96_WCR_ISEL      (1 << 30)
125 #define RME96_WCR_IDIS      (1 << 31)
126 
127 #define RME96_WCR_BITPOS_GAIN_0 2
128 #define RME96_WCR_BITPOS_GAIN_1 3
129 #define RME96_WCR_BITPOS_FREQ_0 9
130 #define RME96_WCR_BITPOS_FREQ_1 10
131 #define RME96_WCR_BITPOS_INP_0 17
132 #define RME96_WCR_BITPOS_INP_1 18
133 #define RME96_WCR_BITPOS_MONITOR_0 28
134 #define RME96_WCR_BITPOS_MONITOR_1 29
135 
136 /* Read control register bits */
137 #define RME96_RCR_AUDIO_ADDR_MASK 0xFFFF
138 #define RME96_RCR_IRQ_2     (1 << 16)
139 #define RME96_RCR_T_OUT     (1 << 17)
140 #define RME96_RCR_DEV_ID_0  (1 << 21)
141 #define RME96_RCR_DEV_ID_1  (1 << 22)
142 #define RME96_RCR_LOCK      (1 << 23)
143 #define RME96_RCR_VERF      (1 << 26)
144 #define RME96_RCR_F0        (1 << 27)
145 #define RME96_RCR_F1        (1 << 28)
146 #define RME96_RCR_F2        (1 << 29)
147 #define RME96_RCR_AUTOSYNC  (1 << 30)
148 #define RME96_RCR_IRQ       (1 << 31)
149 
150 #define RME96_RCR_BITPOS_F0 27
151 #define RME96_RCR_BITPOS_F1 28
152 #define RME96_RCR_BITPOS_F2 29
153 
154 /* Additonal register bits */
155 #define RME96_AR_WSEL       (1 << 0)
156 #define RME96_AR_ANALOG     (1 << 1)
157 #define RME96_AR_FREQPAD_0  (1 << 2)
158 #define RME96_AR_FREQPAD_1  (1 << 3)
159 #define RME96_AR_FREQPAD_2  (1 << 4)
160 #define RME96_AR_PD2        (1 << 5)
161 #define RME96_AR_DAC_EN     (1 << 6)
162 #define RME96_AR_CLATCH     (1 << 7)
163 #define RME96_AR_CCLK       (1 << 8)
164 #define RME96_AR_CDATA      (1 << 9)
165 
166 #define RME96_AR_BITPOS_F0 2
167 #define RME96_AR_BITPOS_F1 3
168 #define RME96_AR_BITPOS_F2 4
169 
170 /* Monitor tracks */
171 #define RME96_MONITOR_TRACKS_1_2 0
172 #define RME96_MONITOR_TRACKS_3_4 1
173 #define RME96_MONITOR_TRACKS_5_6 2
174 #define RME96_MONITOR_TRACKS_7_8 3
175 
176 /* Attenuation */
177 #define RME96_ATTENUATION_0 0
178 #define RME96_ATTENUATION_6 1
179 #define RME96_ATTENUATION_12 2
180 #define RME96_ATTENUATION_18 3
181 
182 /* Input types */
183 #define RME96_INPUT_OPTICAL 0
184 #define RME96_INPUT_COAXIAL 1
185 #define RME96_INPUT_INTERNAL 2
186 #define RME96_INPUT_XLR 3
187 #define RME96_INPUT_ANALOG 4
188 
189 /* Clock modes */
190 #define RME96_CLOCKMODE_SLAVE 0
191 #define RME96_CLOCKMODE_MASTER 1
192 #define RME96_CLOCKMODE_WORDCLOCK 2
193 
194 /* Block sizes in bytes */
195 #define RME96_SMALL_BLOCK_SIZE 2048
196 #define RME96_LARGE_BLOCK_SIZE 8192
197 
198 /* Volume control */
199 #define RME96_AD1852_VOL_BITS 14
200 #define RME96_AD1855_VOL_BITS 10
201 
202 
203 struct rme96 {
204 	spinlock_t    lock;
205 	int irq;
206 	unsigned long port;
207 	void __iomem *iobase;
208 
209 	u32 wcreg;    /* cached write control register value */
210 	u32 wcreg_spdif;		/* S/PDIF setup */
211 	u32 wcreg_spdif_stream;		/* S/PDIF setup (temporary) */
212 	u32 rcreg;    /* cached read control register value */
213 	u32 areg;     /* cached additional register value */
214 	u16 vol[2]; /* cached volume of analog output */
215 
216 	u8 rev; /* card revision number */
217 
218 	struct snd_pcm_substream *playback_substream;
219 	struct snd_pcm_substream *capture_substream;
220 
221 	int playback_frlog; /* log2 of framesize */
222 	int capture_frlog;
223 
224         size_t playback_periodsize; /* in bytes, zero if not used */
225 	size_t capture_periodsize; /* in bytes, zero if not used */
226 
227 	struct snd_card *card;
228 	struct snd_pcm *spdif_pcm;
229 	struct snd_pcm *adat_pcm;
230 	struct pci_dev     *pci;
231 	struct snd_kcontrol   *spdif_ctl;
232 };
233 
234 static struct pci_device_id snd_rme96_ids[] = {
235 	{ PCI_VENDOR_ID_XILINX, PCI_DEVICE_ID_RME_DIGI96,
236 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
237 	{ PCI_VENDOR_ID_XILINX, PCI_DEVICE_ID_RME_DIGI96_8,
238 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
239 	{ PCI_VENDOR_ID_XILINX, PCI_DEVICE_ID_RME_DIGI96_8_PRO,
240 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
241 	{ PCI_VENDOR_ID_XILINX, PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST,
242 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
243 	{ 0, }
244 };
245 
246 MODULE_DEVICE_TABLE(pci, snd_rme96_ids);
247 
248 #define RME96_ISPLAYING(rme96) ((rme96)->wcreg & RME96_WCR_START)
249 #define RME96_ISRECORDING(rme96) ((rme96)->wcreg & RME96_WCR_START_2)
250 #define	RME96_HAS_ANALOG_IN(rme96) ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST)
251 #define	RME96_HAS_ANALOG_OUT(rme96) ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PRO || \
252 				     (rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST)
253 #define	RME96_DAC_IS_1852(rme96) (RME96_HAS_ANALOG_OUT(rme96) && (rme96)->rev >= 4)
254 #define	RME96_DAC_IS_1855(rme96) (((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST && (rme96)->rev < 4) || \
255 			          ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PRO && (rme96)->rev == 2))
256 #define	RME96_185X_MAX_OUT(rme96) ((1 << (RME96_DAC_IS_1852(rme96) ? RME96_AD1852_VOL_BITS : RME96_AD1855_VOL_BITS)) - 1)
257 
258 static int
259 snd_rme96_playback_prepare(struct snd_pcm_substream *substream);
260 
261 static int
262 snd_rme96_capture_prepare(struct snd_pcm_substream *substream);
263 
264 static int
265 snd_rme96_playback_trigger(struct snd_pcm_substream *substream,
266 			   int cmd);
267 
268 static int
269 snd_rme96_capture_trigger(struct snd_pcm_substream *substream,
270 			  int cmd);
271 
272 static snd_pcm_uframes_t
273 snd_rme96_playback_pointer(struct snd_pcm_substream *substream);
274 
275 static snd_pcm_uframes_t
276 snd_rme96_capture_pointer(struct snd_pcm_substream *substream);
277 
278 static void __devinit
279 snd_rme96_proc_init(struct rme96 *rme96);
280 
281 static int
282 snd_rme96_create_switches(struct snd_card *card,
283 			  struct rme96 *rme96);
284 
285 static int
286 snd_rme96_getinputtype(struct rme96 *rme96);
287 
288 static inline unsigned int
289 snd_rme96_playback_ptr(struct rme96 *rme96)
290 {
291 	return (readl(rme96->iobase + RME96_IO_GET_PLAY_POS)
292 		& RME96_RCR_AUDIO_ADDR_MASK) >> rme96->playback_frlog;
293 }
294 
295 static inline unsigned int
296 snd_rme96_capture_ptr(struct rme96 *rme96)
297 {
298 	return (readl(rme96->iobase + RME96_IO_GET_REC_POS)
299 		& RME96_RCR_AUDIO_ADDR_MASK) >> rme96->capture_frlog;
300 }
301 
302 static int
303 snd_rme96_playback_silence(struct snd_pcm_substream *substream,
304 			   int channel, /* not used (interleaved data) */
305 			   snd_pcm_uframes_t pos,
306 			   snd_pcm_uframes_t count)
307 {
308 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
309 	count <<= rme96->playback_frlog;
310 	pos <<= rme96->playback_frlog;
311 	memset_io(rme96->iobase + RME96_IO_PLAY_BUFFER + pos,
312 		  0, count);
313 	return 0;
314 }
315 
316 static int
317 snd_rme96_playback_copy(struct snd_pcm_substream *substream,
318 			int channel, /* not used (interleaved data) */
319 			snd_pcm_uframes_t pos,
320 			void __user *src,
321 			snd_pcm_uframes_t count)
322 {
323 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
324 	count <<= rme96->playback_frlog;
325 	pos <<= rme96->playback_frlog;
326 	copy_from_user_toio(rme96->iobase + RME96_IO_PLAY_BUFFER + pos, src,
327 			    count);
328 	return 0;
329 }
330 
331 static int
332 snd_rme96_capture_copy(struct snd_pcm_substream *substream,
333 		       int channel, /* not used (interleaved data) */
334 		       snd_pcm_uframes_t pos,
335 		       void __user *dst,
336 		       snd_pcm_uframes_t count)
337 {
338 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
339 	count <<= rme96->capture_frlog;
340 	pos <<= rme96->capture_frlog;
341 	copy_to_user_fromio(dst, rme96->iobase + RME96_IO_REC_BUFFER + pos,
342 			    count);
343         return 0;
344 }
345 
346 /*
347  * Digital output capabilities (S/PDIF)
348  */
349 static struct snd_pcm_hardware snd_rme96_playback_spdif_info =
350 {
351 	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
352 			      SNDRV_PCM_INFO_MMAP_VALID |
353 			      SNDRV_PCM_INFO_INTERLEAVED |
354 			      SNDRV_PCM_INFO_PAUSE),
355 	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
356 			      SNDRV_PCM_FMTBIT_S32_LE),
357 	.rates =	     (SNDRV_PCM_RATE_32000 |
358 			      SNDRV_PCM_RATE_44100 |
359 			      SNDRV_PCM_RATE_48000 |
360 			      SNDRV_PCM_RATE_64000 |
361 			      SNDRV_PCM_RATE_88200 |
362 			      SNDRV_PCM_RATE_96000),
363 	.rate_min =	     32000,
364 	.rate_max =	     96000,
365 	.channels_min =	     2,
366 	.channels_max =	     2,
367 	.buffer_bytes_max =  RME96_BUFFER_SIZE,
368 	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
369 	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
370 	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
371 	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
372 	.fifo_size =	     0,
373 };
374 
375 /*
376  * Digital input capabilities (S/PDIF)
377  */
378 static struct snd_pcm_hardware snd_rme96_capture_spdif_info =
379 {
380 	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
381 			      SNDRV_PCM_INFO_MMAP_VALID |
382 			      SNDRV_PCM_INFO_INTERLEAVED |
383 			      SNDRV_PCM_INFO_PAUSE),
384 	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
385 			      SNDRV_PCM_FMTBIT_S32_LE),
386 	.rates =	     (SNDRV_PCM_RATE_32000 |
387 			      SNDRV_PCM_RATE_44100 |
388 			      SNDRV_PCM_RATE_48000 |
389 			      SNDRV_PCM_RATE_64000 |
390 			      SNDRV_PCM_RATE_88200 |
391 			      SNDRV_PCM_RATE_96000),
392 	.rate_min =	     32000,
393 	.rate_max =	     96000,
394 	.channels_min =	     2,
395 	.channels_max =	     2,
396 	.buffer_bytes_max =  RME96_BUFFER_SIZE,
397 	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
398 	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
399 	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
400 	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
401 	.fifo_size =	     0,
402 };
403 
404 /*
405  * Digital output capabilities (ADAT)
406  */
407 static struct snd_pcm_hardware snd_rme96_playback_adat_info =
408 {
409 	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
410 			      SNDRV_PCM_INFO_MMAP_VALID |
411 			      SNDRV_PCM_INFO_INTERLEAVED |
412 			      SNDRV_PCM_INFO_PAUSE),
413 	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
414 			      SNDRV_PCM_FMTBIT_S32_LE),
415 	.rates =             (SNDRV_PCM_RATE_44100 |
416 			      SNDRV_PCM_RATE_48000),
417 	.rate_min =          44100,
418 	.rate_max =          48000,
419 	.channels_min =      8,
420 	.channels_max =	     8,
421 	.buffer_bytes_max =  RME96_BUFFER_SIZE,
422 	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
423 	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
424 	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
425 	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
426 	.fifo_size =	     0,
427 };
428 
429 /*
430  * Digital input capabilities (ADAT)
431  */
432 static struct snd_pcm_hardware snd_rme96_capture_adat_info =
433 {
434 	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
435 			      SNDRV_PCM_INFO_MMAP_VALID |
436 			      SNDRV_PCM_INFO_INTERLEAVED |
437 			      SNDRV_PCM_INFO_PAUSE),
438 	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
439 			      SNDRV_PCM_FMTBIT_S32_LE),
440 	.rates =	     (SNDRV_PCM_RATE_44100 |
441 			      SNDRV_PCM_RATE_48000),
442 	.rate_min =          44100,
443 	.rate_max =          48000,
444 	.channels_min =      8,
445 	.channels_max =	     8,
446 	.buffer_bytes_max =  RME96_BUFFER_SIZE,
447 	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
448 	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
449 	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
450 	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
451 	.fifo_size =         0,
452 };
453 
454 /*
455  * The CDATA, CCLK and CLATCH bits can be used to write to the SPI interface
456  * of the AD1852 or AD1852 D/A converter on the board.  CDATA must be set up
457  * on the falling edge of CCLK and be stable on the rising edge.  The rising
458  * edge of CLATCH after the last data bit clocks in the whole data word.
459  * A fast processor could probably drive the SPI interface faster than the
460  * DAC can handle (3MHz for the 1855, unknown for the 1852).  The udelay(1)
461  * limits the data rate to 500KHz and only causes a delay of 33 microsecs.
462  *
463  * NOTE: increased delay from 1 to 10, since there where problems setting
464  * the volume.
465  */
466 static void
467 snd_rme96_write_SPI(struct rme96 *rme96, u16 val)
468 {
469 	int i;
470 
471 	for (i = 0; i < 16; i++) {
472 		if (val & 0x8000) {
473 			rme96->areg |= RME96_AR_CDATA;
474 		} else {
475 			rme96->areg &= ~RME96_AR_CDATA;
476 		}
477 		rme96->areg &= ~(RME96_AR_CCLK | RME96_AR_CLATCH);
478 		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
479 		udelay(10);
480 		rme96->areg |= RME96_AR_CCLK;
481 		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
482 		udelay(10);
483 		val <<= 1;
484 	}
485 	rme96->areg &= ~(RME96_AR_CCLK | RME96_AR_CDATA);
486 	rme96->areg |= RME96_AR_CLATCH;
487 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
488 	udelay(10);
489 	rme96->areg &= ~RME96_AR_CLATCH;
490 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
491 }
492 
493 static void
494 snd_rme96_apply_dac_volume(struct rme96 *rme96)
495 {
496 	if (RME96_DAC_IS_1852(rme96)) {
497 		snd_rme96_write_SPI(rme96, (rme96->vol[0] << 2) | 0x0);
498 		snd_rme96_write_SPI(rme96, (rme96->vol[1] << 2) | 0x2);
499 	} else if (RME96_DAC_IS_1855(rme96)) {
500 		snd_rme96_write_SPI(rme96, (rme96->vol[0] & 0x3FF) | 0x000);
501 		snd_rme96_write_SPI(rme96, (rme96->vol[1] & 0x3FF) | 0x400);
502 	}
503 }
504 
505 static void
506 snd_rme96_reset_dac(struct rme96 *rme96)
507 {
508 	writel(rme96->wcreg | RME96_WCR_PD,
509 	       rme96->iobase + RME96_IO_CONTROL_REGISTER);
510 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
511 }
512 
513 static int
514 snd_rme96_getmontracks(struct rme96 *rme96)
515 {
516 	return ((rme96->wcreg >> RME96_WCR_BITPOS_MONITOR_0) & 1) +
517 		(((rme96->wcreg >> RME96_WCR_BITPOS_MONITOR_1) & 1) << 1);
518 }
519 
520 static int
521 snd_rme96_setmontracks(struct rme96 *rme96,
522 		       int montracks)
523 {
524 	if (montracks & 1) {
525 		rme96->wcreg |= RME96_WCR_MONITOR_0;
526 	} else {
527 		rme96->wcreg &= ~RME96_WCR_MONITOR_0;
528 	}
529 	if (montracks & 2) {
530 		rme96->wcreg |= RME96_WCR_MONITOR_1;
531 	} else {
532 		rme96->wcreg &= ~RME96_WCR_MONITOR_1;
533 	}
534 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
535 	return 0;
536 }
537 
538 static int
539 snd_rme96_getattenuation(struct rme96 *rme96)
540 {
541 	return ((rme96->wcreg >> RME96_WCR_BITPOS_GAIN_0) & 1) +
542 		(((rme96->wcreg >> RME96_WCR_BITPOS_GAIN_1) & 1) << 1);
543 }
544 
545 static int
546 snd_rme96_setattenuation(struct rme96 *rme96,
547 			 int attenuation)
548 {
549 	switch (attenuation) {
550 	case 0:
551 		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_GAIN_0) &
552 			~RME96_WCR_GAIN_1;
553 		break;
554 	case 1:
555 		rme96->wcreg = (rme96->wcreg | RME96_WCR_GAIN_0) &
556 			~RME96_WCR_GAIN_1;
557 		break;
558 	case 2:
559 		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_GAIN_0) |
560 			RME96_WCR_GAIN_1;
561 		break;
562 	case 3:
563 		rme96->wcreg = (rme96->wcreg | RME96_WCR_GAIN_0) |
564 			RME96_WCR_GAIN_1;
565 		break;
566 	default:
567 		return -EINVAL;
568 	}
569 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
570 	return 0;
571 }
572 
573 static int
574 snd_rme96_capture_getrate(struct rme96 *rme96,
575 			  int *is_adat)
576 {
577 	int n, rate;
578 
579 	*is_adat = 0;
580 	if (rme96->areg & RME96_AR_ANALOG) {
581 		/* Analog input, overrides S/PDIF setting */
582 		n = ((rme96->areg >> RME96_AR_BITPOS_F0) & 1) +
583 			(((rme96->areg >> RME96_AR_BITPOS_F1) & 1) << 1);
584 		switch (n) {
585 		case 1:
586 			rate = 32000;
587 			break;
588 		case 2:
589 			rate = 44100;
590 			break;
591 		case 3:
592 			rate = 48000;
593 			break;
594 		default:
595 			return -1;
596 		}
597 		return (rme96->areg & RME96_AR_BITPOS_F2) ? rate << 1 : rate;
598 	}
599 
600 	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
601 	if (rme96->rcreg & RME96_RCR_LOCK) {
602 		/* ADAT rate */
603 		*is_adat = 1;
604 		if (rme96->rcreg & RME96_RCR_T_OUT) {
605 			return 48000;
606 		}
607 		return 44100;
608 	}
609 
610 	if (rme96->rcreg & RME96_RCR_VERF) {
611 		return -1;
612 	}
613 
614 	/* S/PDIF rate */
615 	n = ((rme96->rcreg >> RME96_RCR_BITPOS_F0) & 1) +
616 		(((rme96->rcreg >> RME96_RCR_BITPOS_F1) & 1) << 1) +
617 		(((rme96->rcreg >> RME96_RCR_BITPOS_F2) & 1) << 2);
618 
619 	switch (n) {
620 	case 0:
621 		if (rme96->rcreg & RME96_RCR_T_OUT) {
622 			return 64000;
623 		}
624 		return -1;
625 	case 3: return 96000;
626 	case 4: return 88200;
627 	case 5: return 48000;
628 	case 6: return 44100;
629 	case 7: return 32000;
630 	default:
631 		break;
632 	}
633 	return -1;
634 }
635 
636 static int
637 snd_rme96_playback_getrate(struct rme96 *rme96)
638 {
639 	int rate, dummy;
640 
641 	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
642             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
643 	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
644 	{
645 	        /* slave clock */
646 	        return rate;
647 	}
648 	rate = ((rme96->wcreg >> RME96_WCR_BITPOS_FREQ_0) & 1) +
649 		(((rme96->wcreg >> RME96_WCR_BITPOS_FREQ_1) & 1) << 1);
650 	switch (rate) {
651 	case 1:
652 		rate = 32000;
653 		break;
654 	case 2:
655 		rate = 44100;
656 		break;
657 	case 3:
658 		rate = 48000;
659 		break;
660 	default:
661 		return -1;
662 	}
663 	return (rme96->wcreg & RME96_WCR_DS) ? rate << 1 : rate;
664 }
665 
666 static int
667 snd_rme96_playback_setrate(struct rme96 *rme96,
668 			   int rate)
669 {
670 	int ds;
671 
672 	ds = rme96->wcreg & RME96_WCR_DS;
673 	switch (rate) {
674 	case 32000:
675 		rme96->wcreg &= ~RME96_WCR_DS;
676 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) &
677 			~RME96_WCR_FREQ_1;
678 		break;
679 	case 44100:
680 		rme96->wcreg &= ~RME96_WCR_DS;
681 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_1) &
682 			~RME96_WCR_FREQ_0;
683 		break;
684 	case 48000:
685 		rme96->wcreg &= ~RME96_WCR_DS;
686 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) |
687 			RME96_WCR_FREQ_1;
688 		break;
689 	case 64000:
690 		rme96->wcreg |= RME96_WCR_DS;
691 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) &
692 			~RME96_WCR_FREQ_1;
693 		break;
694 	case 88200:
695 		rme96->wcreg |= RME96_WCR_DS;
696 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_1) &
697 			~RME96_WCR_FREQ_0;
698 		break;
699 	case 96000:
700 		rme96->wcreg |= RME96_WCR_DS;
701 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) |
702 			RME96_WCR_FREQ_1;
703 		break;
704 	default:
705 		return -EINVAL;
706 	}
707 	if ((!ds && rme96->wcreg & RME96_WCR_DS) ||
708 	    (ds && !(rme96->wcreg & RME96_WCR_DS)))
709 	{
710 		/* change to/from double-speed: reset the DAC (if available) */
711 		snd_rme96_reset_dac(rme96);
712 	} else {
713 		writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
714 	}
715 	return 0;
716 }
717 
718 static int
719 snd_rme96_capture_analog_setrate(struct rme96 *rme96,
720 				 int rate)
721 {
722 	switch (rate) {
723 	case 32000:
724 		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) &
725 			       ~RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
726 		break;
727 	case 44100:
728 		rme96->areg = ((rme96->areg & ~RME96_AR_FREQPAD_0) |
729 			       RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
730 		break;
731 	case 48000:
732 		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) |
733 			       RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
734 		break;
735 	case 64000:
736 		if (rme96->rev < 4) {
737 			return -EINVAL;
738 		}
739 		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) &
740 			       ~RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
741 		break;
742 	case 88200:
743 		if (rme96->rev < 4) {
744 			return -EINVAL;
745 		}
746 		rme96->areg = ((rme96->areg & ~RME96_AR_FREQPAD_0) |
747 			       RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
748 		break;
749 	case 96000:
750 		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) |
751 			       RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
752 		break;
753 	default:
754 		return -EINVAL;
755 	}
756 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
757 	return 0;
758 }
759 
760 static int
761 snd_rme96_setclockmode(struct rme96 *rme96,
762 		       int mode)
763 {
764 	switch (mode) {
765 	case RME96_CLOCKMODE_SLAVE:
766 	        /* AutoSync */
767 		rme96->wcreg &= ~RME96_WCR_MASTER;
768 		rme96->areg &= ~RME96_AR_WSEL;
769 		break;
770 	case RME96_CLOCKMODE_MASTER:
771 	        /* Internal */
772 		rme96->wcreg |= RME96_WCR_MASTER;
773 		rme96->areg &= ~RME96_AR_WSEL;
774 		break;
775 	case RME96_CLOCKMODE_WORDCLOCK:
776 		/* Word clock is a master mode */
777 		rme96->wcreg |= RME96_WCR_MASTER;
778 		rme96->areg |= RME96_AR_WSEL;
779 		break;
780 	default:
781 		return -EINVAL;
782 	}
783 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
784 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
785 	return 0;
786 }
787 
788 static int
789 snd_rme96_getclockmode(struct rme96 *rme96)
790 {
791 	if (rme96->areg & RME96_AR_WSEL) {
792 		return RME96_CLOCKMODE_WORDCLOCK;
793 	}
794 	return (rme96->wcreg & RME96_WCR_MASTER) ? RME96_CLOCKMODE_MASTER :
795 		RME96_CLOCKMODE_SLAVE;
796 }
797 
798 static int
799 snd_rme96_setinputtype(struct rme96 *rme96,
800 		       int type)
801 {
802 	int n;
803 
804 	switch (type) {
805 	case RME96_INPUT_OPTICAL:
806 		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_INP_0) &
807 			~RME96_WCR_INP_1;
808 		break;
809 	case RME96_INPUT_COAXIAL:
810 		rme96->wcreg = (rme96->wcreg | RME96_WCR_INP_0) &
811 			~RME96_WCR_INP_1;
812 		break;
813 	case RME96_INPUT_INTERNAL:
814 		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_INP_0) |
815 			RME96_WCR_INP_1;
816 		break;
817 	case RME96_INPUT_XLR:
818 		if ((rme96->pci->device != PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST &&
819 		     rme96->pci->device != PCI_DEVICE_ID_RME_DIGI96_8_PRO) ||
820 		    (rme96->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST &&
821 		     rme96->rev > 4))
822 		{
823 			/* Only Digi96/8 PRO and Digi96/8 PAD supports XLR */
824 			return -EINVAL;
825 		}
826 		rme96->wcreg = (rme96->wcreg | RME96_WCR_INP_0) |
827 			RME96_WCR_INP_1;
828 		break;
829 	case RME96_INPUT_ANALOG:
830 		if (!RME96_HAS_ANALOG_IN(rme96)) {
831 			return -EINVAL;
832 		}
833 		rme96->areg |= RME96_AR_ANALOG;
834 		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
835 		if (rme96->rev < 4) {
836 			/*
837 			 * Revision less than 004 does not support 64 and
838 			 * 88.2 kHz
839 			 */
840 			if (snd_rme96_capture_getrate(rme96, &n) == 88200) {
841 				snd_rme96_capture_analog_setrate(rme96, 44100);
842 			}
843 			if (snd_rme96_capture_getrate(rme96, &n) == 64000) {
844 				snd_rme96_capture_analog_setrate(rme96, 32000);
845 			}
846 		}
847 		return 0;
848 	default:
849 		return -EINVAL;
850 	}
851 	if (type != RME96_INPUT_ANALOG && RME96_HAS_ANALOG_IN(rme96)) {
852 		rme96->areg &= ~RME96_AR_ANALOG;
853 		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
854 	}
855 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
856 	return 0;
857 }
858 
859 static int
860 snd_rme96_getinputtype(struct rme96 *rme96)
861 {
862 	if (rme96->areg & RME96_AR_ANALOG) {
863 		return RME96_INPUT_ANALOG;
864 	}
865 	return ((rme96->wcreg >> RME96_WCR_BITPOS_INP_0) & 1) +
866 		(((rme96->wcreg >> RME96_WCR_BITPOS_INP_1) & 1) << 1);
867 }
868 
869 static void
870 snd_rme96_setframelog(struct rme96 *rme96,
871 		      int n_channels,
872 		      int is_playback)
873 {
874 	int frlog;
875 
876 	if (n_channels == 2) {
877 		frlog = 1;
878 	} else {
879 		/* assume 8 channels */
880 		frlog = 3;
881 	}
882 	if (is_playback) {
883 		frlog += (rme96->wcreg & RME96_WCR_MODE24) ? 2 : 1;
884 		rme96->playback_frlog = frlog;
885 	} else {
886 		frlog += (rme96->wcreg & RME96_WCR_MODE24_2) ? 2 : 1;
887 		rme96->capture_frlog = frlog;
888 	}
889 }
890 
891 static int
892 snd_rme96_playback_setformat(struct rme96 *rme96,
893 			     int format)
894 {
895 	switch (format) {
896 	case SNDRV_PCM_FORMAT_S16_LE:
897 		rme96->wcreg &= ~RME96_WCR_MODE24;
898 		break;
899 	case SNDRV_PCM_FORMAT_S32_LE:
900 		rme96->wcreg |= RME96_WCR_MODE24;
901 		break;
902 	default:
903 		return -EINVAL;
904 	}
905 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
906 	return 0;
907 }
908 
909 static int
910 snd_rme96_capture_setformat(struct rme96 *rme96,
911 			    int format)
912 {
913 	switch (format) {
914 	case SNDRV_PCM_FORMAT_S16_LE:
915 		rme96->wcreg &= ~RME96_WCR_MODE24_2;
916 		break;
917 	case SNDRV_PCM_FORMAT_S32_LE:
918 		rme96->wcreg |= RME96_WCR_MODE24_2;
919 		break;
920 	default:
921 		return -EINVAL;
922 	}
923 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
924 	return 0;
925 }
926 
927 static void
928 snd_rme96_set_period_properties(struct rme96 *rme96,
929 				size_t period_bytes)
930 {
931 	switch (period_bytes) {
932 	case RME96_LARGE_BLOCK_SIZE:
933 		rme96->wcreg &= ~RME96_WCR_ISEL;
934 		break;
935 	case RME96_SMALL_BLOCK_SIZE:
936 		rme96->wcreg |= RME96_WCR_ISEL;
937 		break;
938 	default:
939 		snd_BUG();
940 		break;
941 	}
942 	rme96->wcreg &= ~RME96_WCR_IDIS;
943 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
944 }
945 
946 static int
947 snd_rme96_playback_hw_params(struct snd_pcm_substream *substream,
948 			     struct snd_pcm_hw_params *params)
949 {
950 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
951 	struct snd_pcm_runtime *runtime = substream->runtime;
952 	int err, rate, dummy;
953 
954 	runtime->dma_area = (void __force *)(rme96->iobase +
955 					     RME96_IO_PLAY_BUFFER);
956 	runtime->dma_addr = rme96->port + RME96_IO_PLAY_BUFFER;
957 	runtime->dma_bytes = RME96_BUFFER_SIZE;
958 
959 	spin_lock_irq(&rme96->lock);
960 	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
961             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
962 	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
963 	{
964                 /* slave clock */
965                 if ((int)params_rate(params) != rate) {
966 			spin_unlock_irq(&rme96->lock);
967 			return -EIO;
968                 }
969 	} else if ((err = snd_rme96_playback_setrate(rme96, params_rate(params))) < 0) {
970 		spin_unlock_irq(&rme96->lock);
971 		return err;
972 	}
973 	if ((err = snd_rme96_playback_setformat(rme96, params_format(params))) < 0) {
974 		spin_unlock_irq(&rme96->lock);
975 		return err;
976 	}
977 	snd_rme96_setframelog(rme96, params_channels(params), 1);
978 	if (rme96->capture_periodsize != 0) {
979 		if (params_period_size(params) << rme96->playback_frlog !=
980 		    rme96->capture_periodsize)
981 		{
982 			spin_unlock_irq(&rme96->lock);
983 			return -EBUSY;
984 		}
985 	}
986 	rme96->playback_periodsize =
987 		params_period_size(params) << rme96->playback_frlog;
988 	snd_rme96_set_period_properties(rme96, rme96->playback_periodsize);
989 	/* S/PDIF setup */
990 	if ((rme96->wcreg & RME96_WCR_ADAT) == 0) {
991 		rme96->wcreg &= ~(RME96_WCR_PRO | RME96_WCR_DOLBY | RME96_WCR_EMP);
992 		writel(rme96->wcreg |= rme96->wcreg_spdif_stream, rme96->iobase + RME96_IO_CONTROL_REGISTER);
993 	}
994 	spin_unlock_irq(&rme96->lock);
995 
996 	return 0;
997 }
998 
999 static int
1000 snd_rme96_capture_hw_params(struct snd_pcm_substream *substream,
1001 			    struct snd_pcm_hw_params *params)
1002 {
1003 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1004 	struct snd_pcm_runtime *runtime = substream->runtime;
1005 	int err, isadat, rate;
1006 
1007 	runtime->dma_area = (void __force *)(rme96->iobase +
1008 					     RME96_IO_REC_BUFFER);
1009 	runtime->dma_addr = rme96->port + RME96_IO_REC_BUFFER;
1010 	runtime->dma_bytes = RME96_BUFFER_SIZE;
1011 
1012 	spin_lock_irq(&rme96->lock);
1013 	if ((err = snd_rme96_capture_setformat(rme96, params_format(params))) < 0) {
1014 		spin_unlock_irq(&rme96->lock);
1015 		return err;
1016 	}
1017 	if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1018 		if ((err = snd_rme96_capture_analog_setrate(rme96,
1019 							    params_rate(params))) < 0)
1020 		{
1021 			spin_unlock_irq(&rme96->lock);
1022 			return err;
1023 		}
1024 	} else if ((rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0) {
1025                 if ((int)params_rate(params) != rate) {
1026 			spin_unlock_irq(&rme96->lock);
1027 			return -EIO;
1028                 }
1029                 if ((isadat && runtime->hw.channels_min == 2) ||
1030                     (!isadat && runtime->hw.channels_min == 8))
1031                 {
1032 			spin_unlock_irq(&rme96->lock);
1033 			return -EIO;
1034                 }
1035         }
1036 	snd_rme96_setframelog(rme96, params_channels(params), 0);
1037 	if (rme96->playback_periodsize != 0) {
1038 		if (params_period_size(params) << rme96->capture_frlog !=
1039 		    rme96->playback_periodsize)
1040 		{
1041 			spin_unlock_irq(&rme96->lock);
1042 			return -EBUSY;
1043 		}
1044 	}
1045 	rme96->capture_periodsize =
1046 		params_period_size(params) << rme96->capture_frlog;
1047 	snd_rme96_set_period_properties(rme96, rme96->capture_periodsize);
1048 	spin_unlock_irq(&rme96->lock);
1049 
1050 	return 0;
1051 }
1052 
1053 static void
1054 snd_rme96_playback_start(struct rme96 *rme96,
1055 			 int from_pause)
1056 {
1057 	if (!from_pause) {
1058 		writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1059 	}
1060 
1061 	rme96->wcreg |= RME96_WCR_START;
1062 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1063 }
1064 
1065 static void
1066 snd_rme96_capture_start(struct rme96 *rme96,
1067 			int from_pause)
1068 {
1069 	if (!from_pause) {
1070 		writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1071 	}
1072 
1073 	rme96->wcreg |= RME96_WCR_START_2;
1074 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1075 }
1076 
1077 static void
1078 snd_rme96_playback_stop(struct rme96 *rme96)
1079 {
1080 	/*
1081 	 * Check if there is an unconfirmed IRQ, if so confirm it, or else
1082 	 * the hardware will not stop generating interrupts
1083 	 */
1084 	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1085 	if (rme96->rcreg & RME96_RCR_IRQ) {
1086 		writel(0, rme96->iobase + RME96_IO_CONFIRM_PLAY_IRQ);
1087 	}
1088 	rme96->wcreg &= ~RME96_WCR_START;
1089 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1090 }
1091 
1092 static void
1093 snd_rme96_capture_stop(struct rme96 *rme96)
1094 {
1095 	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1096 	if (rme96->rcreg & RME96_RCR_IRQ_2) {
1097 		writel(0, rme96->iobase + RME96_IO_CONFIRM_REC_IRQ);
1098 	}
1099 	rme96->wcreg &= ~RME96_WCR_START_2;
1100 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1101 }
1102 
1103 static irqreturn_t
1104 snd_rme96_interrupt(int irq,
1105 		    void *dev_id)
1106 {
1107 	struct rme96 *rme96 = (struct rme96 *)dev_id;
1108 
1109 	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1110 	/* fastpath out, to ease interrupt sharing */
1111 	if (!((rme96->rcreg & RME96_RCR_IRQ) ||
1112 	      (rme96->rcreg & RME96_RCR_IRQ_2)))
1113 	{
1114 		return IRQ_NONE;
1115 	}
1116 
1117 	if (rme96->rcreg & RME96_RCR_IRQ) {
1118 		/* playback */
1119                 snd_pcm_period_elapsed(rme96->playback_substream);
1120 		writel(0, rme96->iobase + RME96_IO_CONFIRM_PLAY_IRQ);
1121 	}
1122 	if (rme96->rcreg & RME96_RCR_IRQ_2) {
1123 		/* capture */
1124 		snd_pcm_period_elapsed(rme96->capture_substream);
1125 		writel(0, rme96->iobase + RME96_IO_CONFIRM_REC_IRQ);
1126 	}
1127 	return IRQ_HANDLED;
1128 }
1129 
1130 static unsigned int period_bytes[] = { RME96_SMALL_BLOCK_SIZE, RME96_LARGE_BLOCK_SIZE };
1131 
1132 static struct snd_pcm_hw_constraint_list hw_constraints_period_bytes = {
1133 	.count = ARRAY_SIZE(period_bytes),
1134 	.list = period_bytes,
1135 	.mask = 0
1136 };
1137 
1138 static void
1139 rme96_set_buffer_size_constraint(struct rme96 *rme96,
1140 				 struct snd_pcm_runtime *runtime)
1141 {
1142 	unsigned int size;
1143 
1144 	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1145 				     RME96_BUFFER_SIZE, RME96_BUFFER_SIZE);
1146 	if ((size = rme96->playback_periodsize) != 0 ||
1147 	    (size = rme96->capture_periodsize) != 0)
1148 		snd_pcm_hw_constraint_minmax(runtime,
1149 					     SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1150 					     size, size);
1151 	else
1152 		snd_pcm_hw_constraint_list(runtime, 0,
1153 					   SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1154 					   &hw_constraints_period_bytes);
1155 }
1156 
1157 static int
1158 snd_rme96_playback_spdif_open(struct snd_pcm_substream *substream)
1159 {
1160         int rate, dummy;
1161 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1162 	struct snd_pcm_runtime *runtime = substream->runtime;
1163 
1164 	spin_lock_irq(&rme96->lock);
1165         if (rme96->playback_substream != NULL) {
1166 		spin_unlock_irq(&rme96->lock);
1167                 return -EBUSY;
1168         }
1169 	rme96->wcreg &= ~RME96_WCR_ADAT;
1170 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1171 	rme96->playback_substream = substream;
1172 	spin_unlock_irq(&rme96->lock);
1173 
1174 	runtime->hw = snd_rme96_playback_spdif_info;
1175 	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
1176             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1177 	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
1178 	{
1179                 /* slave clock */
1180                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1181                 runtime->hw.rate_min = rate;
1182                 runtime->hw.rate_max = rate;
1183 	}
1184 	rme96_set_buffer_size_constraint(rme96, runtime);
1185 
1186 	rme96->wcreg_spdif_stream = rme96->wcreg_spdif;
1187 	rme96->spdif_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1188 	snd_ctl_notify(rme96->card, SNDRV_CTL_EVENT_MASK_VALUE |
1189 		       SNDRV_CTL_EVENT_MASK_INFO, &rme96->spdif_ctl->id);
1190 	return 0;
1191 }
1192 
1193 static int
1194 snd_rme96_capture_spdif_open(struct snd_pcm_substream *substream)
1195 {
1196         int isadat, rate;
1197 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1198 	struct snd_pcm_runtime *runtime = substream->runtime;
1199 
1200 	runtime->hw = snd_rme96_capture_spdif_info;
1201         if (snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1202             (rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0)
1203         {
1204                 if (isadat) {
1205                         return -EIO;
1206                 }
1207                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1208                 runtime->hw.rate_min = rate;
1209                 runtime->hw.rate_max = rate;
1210         }
1211 
1212 	spin_lock_irq(&rme96->lock);
1213         if (rme96->capture_substream != NULL) {
1214 		spin_unlock_irq(&rme96->lock);
1215                 return -EBUSY;
1216         }
1217 	rme96->capture_substream = substream;
1218 	spin_unlock_irq(&rme96->lock);
1219 
1220 	rme96_set_buffer_size_constraint(rme96, runtime);
1221 	return 0;
1222 }
1223 
1224 static int
1225 snd_rme96_playback_adat_open(struct snd_pcm_substream *substream)
1226 {
1227         int rate, dummy;
1228 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1229 	struct snd_pcm_runtime *runtime = substream->runtime;
1230 
1231 	spin_lock_irq(&rme96->lock);
1232         if (rme96->playback_substream != NULL) {
1233 		spin_unlock_irq(&rme96->lock);
1234                 return -EBUSY;
1235         }
1236 	rme96->wcreg |= RME96_WCR_ADAT;
1237 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1238 	rme96->playback_substream = substream;
1239 	spin_unlock_irq(&rme96->lock);
1240 
1241 	runtime->hw = snd_rme96_playback_adat_info;
1242 	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
1243             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1244 	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
1245 	{
1246                 /* slave clock */
1247                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1248                 runtime->hw.rate_min = rate;
1249                 runtime->hw.rate_max = rate;
1250 	}
1251 	rme96_set_buffer_size_constraint(rme96, runtime);
1252 	return 0;
1253 }
1254 
1255 static int
1256 snd_rme96_capture_adat_open(struct snd_pcm_substream *substream)
1257 {
1258         int isadat, rate;
1259 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1260 	struct snd_pcm_runtime *runtime = substream->runtime;
1261 
1262 	runtime->hw = snd_rme96_capture_adat_info;
1263         if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1264                 /* makes no sense to use analog input. Note that analog
1265                    expension cards AEB4/8-I are RME96_INPUT_INTERNAL */
1266                 return -EIO;
1267         }
1268         if ((rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0) {
1269                 if (!isadat) {
1270                         return -EIO;
1271                 }
1272                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1273                 runtime->hw.rate_min = rate;
1274                 runtime->hw.rate_max = rate;
1275         }
1276 
1277 	spin_lock_irq(&rme96->lock);
1278         if (rme96->capture_substream != NULL) {
1279 		spin_unlock_irq(&rme96->lock);
1280                 return -EBUSY;
1281         }
1282 	rme96->capture_substream = substream;
1283 	spin_unlock_irq(&rme96->lock);
1284 
1285 	rme96_set_buffer_size_constraint(rme96, runtime);
1286 	return 0;
1287 }
1288 
1289 static int
1290 snd_rme96_playback_close(struct snd_pcm_substream *substream)
1291 {
1292 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1293 	int spdif = 0;
1294 
1295 	spin_lock_irq(&rme96->lock);
1296 	if (RME96_ISPLAYING(rme96)) {
1297 		snd_rme96_playback_stop(rme96);
1298 	}
1299 	rme96->playback_substream = NULL;
1300 	rme96->playback_periodsize = 0;
1301 	spdif = (rme96->wcreg & RME96_WCR_ADAT) == 0;
1302 	spin_unlock_irq(&rme96->lock);
1303 	if (spdif) {
1304 		rme96->spdif_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1305 		snd_ctl_notify(rme96->card, SNDRV_CTL_EVENT_MASK_VALUE |
1306 			       SNDRV_CTL_EVENT_MASK_INFO, &rme96->spdif_ctl->id);
1307 	}
1308 	return 0;
1309 }
1310 
1311 static int
1312 snd_rme96_capture_close(struct snd_pcm_substream *substream)
1313 {
1314 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1315 
1316 	spin_lock_irq(&rme96->lock);
1317 	if (RME96_ISRECORDING(rme96)) {
1318 		snd_rme96_capture_stop(rme96);
1319 	}
1320 	rme96->capture_substream = NULL;
1321 	rme96->capture_periodsize = 0;
1322 	spin_unlock_irq(&rme96->lock);
1323 	return 0;
1324 }
1325 
1326 static int
1327 snd_rme96_playback_prepare(struct snd_pcm_substream *substream)
1328 {
1329 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1330 
1331 	spin_lock_irq(&rme96->lock);
1332 	if (RME96_ISPLAYING(rme96)) {
1333 		snd_rme96_playback_stop(rme96);
1334 	}
1335 	writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1336 	spin_unlock_irq(&rme96->lock);
1337 	return 0;
1338 }
1339 
1340 static int
1341 snd_rme96_capture_prepare(struct snd_pcm_substream *substream)
1342 {
1343 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1344 
1345 	spin_lock_irq(&rme96->lock);
1346 	if (RME96_ISRECORDING(rme96)) {
1347 		snd_rme96_capture_stop(rme96);
1348 	}
1349 	writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1350 	spin_unlock_irq(&rme96->lock);
1351 	return 0;
1352 }
1353 
1354 static int
1355 snd_rme96_playback_trigger(struct snd_pcm_substream *substream,
1356 			   int cmd)
1357 {
1358 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1359 
1360 	switch (cmd) {
1361 	case SNDRV_PCM_TRIGGER_START:
1362 		if (!RME96_ISPLAYING(rme96)) {
1363 			if (substream != rme96->playback_substream) {
1364 				return -EBUSY;
1365 			}
1366 			snd_rme96_playback_start(rme96, 0);
1367 		}
1368 		break;
1369 
1370 	case SNDRV_PCM_TRIGGER_STOP:
1371 		if (RME96_ISPLAYING(rme96)) {
1372 			if (substream != rme96->playback_substream) {
1373 				return -EBUSY;
1374 			}
1375 			snd_rme96_playback_stop(rme96);
1376 		}
1377 		break;
1378 
1379 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1380 		if (RME96_ISPLAYING(rme96)) {
1381 			snd_rme96_playback_stop(rme96);
1382 		}
1383 		break;
1384 
1385 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1386 		if (!RME96_ISPLAYING(rme96)) {
1387 			snd_rme96_playback_start(rme96, 1);
1388 		}
1389 		break;
1390 
1391 	default:
1392 		return -EINVAL;
1393 	}
1394 	return 0;
1395 }
1396 
1397 static int
1398 snd_rme96_capture_trigger(struct snd_pcm_substream *substream,
1399 			  int cmd)
1400 {
1401 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1402 
1403 	switch (cmd) {
1404 	case SNDRV_PCM_TRIGGER_START:
1405 		if (!RME96_ISRECORDING(rme96)) {
1406 			if (substream != rme96->capture_substream) {
1407 				return -EBUSY;
1408 			}
1409 			snd_rme96_capture_start(rme96, 0);
1410 		}
1411 		break;
1412 
1413 	case SNDRV_PCM_TRIGGER_STOP:
1414 		if (RME96_ISRECORDING(rme96)) {
1415 			if (substream != rme96->capture_substream) {
1416 				return -EBUSY;
1417 			}
1418 			snd_rme96_capture_stop(rme96);
1419 		}
1420 		break;
1421 
1422 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1423 		if (RME96_ISRECORDING(rme96)) {
1424 			snd_rme96_capture_stop(rme96);
1425 		}
1426 		break;
1427 
1428 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1429 		if (!RME96_ISRECORDING(rme96)) {
1430 			snd_rme96_capture_start(rme96, 1);
1431 		}
1432 		break;
1433 
1434 	default:
1435 		return -EINVAL;
1436 	}
1437 
1438 	return 0;
1439 }
1440 
1441 static snd_pcm_uframes_t
1442 snd_rme96_playback_pointer(struct snd_pcm_substream *substream)
1443 {
1444 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1445 	return snd_rme96_playback_ptr(rme96);
1446 }
1447 
1448 static snd_pcm_uframes_t
1449 snd_rme96_capture_pointer(struct snd_pcm_substream *substream)
1450 {
1451 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1452 	return snd_rme96_capture_ptr(rme96);
1453 }
1454 
1455 static struct snd_pcm_ops snd_rme96_playback_spdif_ops = {
1456 	.open =		snd_rme96_playback_spdif_open,
1457 	.close =	snd_rme96_playback_close,
1458 	.ioctl =	snd_pcm_lib_ioctl,
1459 	.hw_params =	snd_rme96_playback_hw_params,
1460 	.prepare =	snd_rme96_playback_prepare,
1461 	.trigger =	snd_rme96_playback_trigger,
1462 	.pointer =	snd_rme96_playback_pointer,
1463 	.copy =		snd_rme96_playback_copy,
1464 	.silence =	snd_rme96_playback_silence,
1465 	.mmap =		snd_pcm_lib_mmap_iomem,
1466 };
1467 
1468 static struct snd_pcm_ops snd_rme96_capture_spdif_ops = {
1469 	.open =		snd_rme96_capture_spdif_open,
1470 	.close =	snd_rme96_capture_close,
1471 	.ioctl =	snd_pcm_lib_ioctl,
1472 	.hw_params =	snd_rme96_capture_hw_params,
1473 	.prepare =	snd_rme96_capture_prepare,
1474 	.trigger =	snd_rme96_capture_trigger,
1475 	.pointer =	snd_rme96_capture_pointer,
1476 	.copy =		snd_rme96_capture_copy,
1477 	.mmap =		snd_pcm_lib_mmap_iomem,
1478 };
1479 
1480 static struct snd_pcm_ops snd_rme96_playback_adat_ops = {
1481 	.open =		snd_rme96_playback_adat_open,
1482 	.close =	snd_rme96_playback_close,
1483 	.ioctl =	snd_pcm_lib_ioctl,
1484 	.hw_params =	snd_rme96_playback_hw_params,
1485 	.prepare =	snd_rme96_playback_prepare,
1486 	.trigger =	snd_rme96_playback_trigger,
1487 	.pointer =	snd_rme96_playback_pointer,
1488 	.copy =		snd_rme96_playback_copy,
1489 	.silence =	snd_rme96_playback_silence,
1490 	.mmap =		snd_pcm_lib_mmap_iomem,
1491 };
1492 
1493 static struct snd_pcm_ops snd_rme96_capture_adat_ops = {
1494 	.open =		snd_rme96_capture_adat_open,
1495 	.close =	snd_rme96_capture_close,
1496 	.ioctl =	snd_pcm_lib_ioctl,
1497 	.hw_params =	snd_rme96_capture_hw_params,
1498 	.prepare =	snd_rme96_capture_prepare,
1499 	.trigger =	snd_rme96_capture_trigger,
1500 	.pointer =	snd_rme96_capture_pointer,
1501 	.copy =		snd_rme96_capture_copy,
1502 	.mmap =		snd_pcm_lib_mmap_iomem,
1503 };
1504 
1505 static void
1506 snd_rme96_free(void *private_data)
1507 {
1508 	struct rme96 *rme96 = (struct rme96 *)private_data;
1509 
1510 	if (rme96 == NULL) {
1511 	        return;
1512 	}
1513 	if (rme96->irq >= 0) {
1514 		snd_rme96_playback_stop(rme96);
1515 		snd_rme96_capture_stop(rme96);
1516 		rme96->areg &= ~RME96_AR_DAC_EN;
1517 		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1518 		free_irq(rme96->irq, (void *)rme96);
1519 		rme96->irq = -1;
1520 	}
1521 	if (rme96->iobase) {
1522 		iounmap(rme96->iobase);
1523 		rme96->iobase = NULL;
1524 	}
1525 	if (rme96->port) {
1526 		pci_release_regions(rme96->pci);
1527 		rme96->port = 0;
1528 	}
1529 	pci_disable_device(rme96->pci);
1530 }
1531 
1532 static void
1533 snd_rme96_free_spdif_pcm(struct snd_pcm *pcm)
1534 {
1535 	struct rme96 *rme96 = (struct rme96 *) pcm->private_data;
1536 	rme96->spdif_pcm = NULL;
1537 }
1538 
1539 static void
1540 snd_rme96_free_adat_pcm(struct snd_pcm *pcm)
1541 {
1542 	struct rme96 *rme96 = (struct rme96 *) pcm->private_data;
1543 	rme96->adat_pcm = NULL;
1544 }
1545 
1546 static int __devinit
1547 snd_rme96_create(struct rme96 *rme96)
1548 {
1549 	struct pci_dev *pci = rme96->pci;
1550 	int err;
1551 
1552 	rme96->irq = -1;
1553 	spin_lock_init(&rme96->lock);
1554 
1555 	if ((err = pci_enable_device(pci)) < 0)
1556 		return err;
1557 
1558 	if ((err = pci_request_regions(pci, "RME96")) < 0)
1559 		return err;
1560 	rme96->port = pci_resource_start(rme96->pci, 0);
1561 
1562 	rme96->iobase = ioremap_nocache(rme96->port, RME96_IO_SIZE);
1563 	if (!rme96->iobase) {
1564 		snd_printk(KERN_ERR "unable to remap memory region 0x%lx-0x%lx\n", rme96->port, rme96->port + RME96_IO_SIZE - 1);
1565 		return -ENOMEM;
1566 	}
1567 
1568 	if (request_irq(pci->irq, snd_rme96_interrupt, IRQF_SHARED,
1569 			"RME96", rme96)) {
1570 		snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1571 		return -EBUSY;
1572 	}
1573 	rme96->irq = pci->irq;
1574 
1575 	/* read the card's revision number */
1576 	pci_read_config_byte(pci, 8, &rme96->rev);
1577 
1578 	/* set up ALSA pcm device for S/PDIF */
1579 	if ((err = snd_pcm_new(rme96->card, "Digi96 IEC958", 0,
1580 			       1, 1, &rme96->spdif_pcm)) < 0)
1581 	{
1582 		return err;
1583 	}
1584 	rme96->spdif_pcm->private_data = rme96;
1585 	rme96->spdif_pcm->private_free = snd_rme96_free_spdif_pcm;
1586 	strcpy(rme96->spdif_pcm->name, "Digi96 IEC958");
1587 	snd_pcm_set_ops(rme96->spdif_pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_rme96_playback_spdif_ops);
1588 	snd_pcm_set_ops(rme96->spdif_pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_rme96_capture_spdif_ops);
1589 
1590 	rme96->spdif_pcm->info_flags = 0;
1591 
1592 	/* set up ALSA pcm device for ADAT */
1593 	if (pci->device == PCI_DEVICE_ID_RME_DIGI96) {
1594 		/* ADAT is not available on the base model */
1595 		rme96->adat_pcm = NULL;
1596 	} else {
1597 		if ((err = snd_pcm_new(rme96->card, "Digi96 ADAT", 1,
1598 				       1, 1, &rme96->adat_pcm)) < 0)
1599 		{
1600 			return err;
1601 		}
1602 		rme96->adat_pcm->private_data = rme96;
1603 		rme96->adat_pcm->private_free = snd_rme96_free_adat_pcm;
1604 		strcpy(rme96->adat_pcm->name, "Digi96 ADAT");
1605 		snd_pcm_set_ops(rme96->adat_pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_rme96_playback_adat_ops);
1606 		snd_pcm_set_ops(rme96->adat_pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_rme96_capture_adat_ops);
1607 
1608 		rme96->adat_pcm->info_flags = 0;
1609 	}
1610 
1611 	rme96->playback_periodsize = 0;
1612 	rme96->capture_periodsize = 0;
1613 
1614 	/* make sure playback/capture is stopped, if by some reason active */
1615 	snd_rme96_playback_stop(rme96);
1616 	snd_rme96_capture_stop(rme96);
1617 
1618 	/* set default values in registers */
1619 	rme96->wcreg =
1620 		RME96_WCR_FREQ_1 | /* set 44.1 kHz playback */
1621 		RME96_WCR_SEL |    /* normal playback */
1622 		RME96_WCR_MASTER | /* set to master clock mode */
1623 		RME96_WCR_INP_0;   /* set coaxial input */
1624 
1625 	rme96->areg = RME96_AR_FREQPAD_1; /* set 44.1 kHz analog capture */
1626 
1627 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1628 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1629 
1630 	/* reset the ADC */
1631 	writel(rme96->areg | RME96_AR_PD2,
1632 	       rme96->iobase + RME96_IO_ADDITIONAL_REG);
1633 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1634 
1635 	/* reset and enable the DAC (order is important). */
1636 	snd_rme96_reset_dac(rme96);
1637 	rme96->areg |= RME96_AR_DAC_EN;
1638 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1639 
1640 	/* reset playback and record buffer pointers */
1641 	writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1642 	writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1643 
1644 	/* reset volume */
1645 	rme96->vol[0] = rme96->vol[1] = 0;
1646 	if (RME96_HAS_ANALOG_OUT(rme96)) {
1647 		snd_rme96_apply_dac_volume(rme96);
1648 	}
1649 
1650 	/* init switch interface */
1651 	if ((err = snd_rme96_create_switches(rme96->card, rme96)) < 0) {
1652 		return err;
1653 	}
1654 
1655         /* init proc interface */
1656 	snd_rme96_proc_init(rme96);
1657 
1658 	return 0;
1659 }
1660 
1661 /*
1662  * proc interface
1663  */
1664 
1665 static void
1666 snd_rme96_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
1667 {
1668 	int n;
1669 	struct rme96 *rme96 = (struct rme96 *)entry->private_data;
1670 
1671 	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1672 
1673 	snd_iprintf(buffer, rme96->card->longname);
1674 	snd_iprintf(buffer, " (index #%d)\n", rme96->card->number + 1);
1675 
1676 	snd_iprintf(buffer, "\nGeneral settings\n");
1677 	if (rme96->wcreg & RME96_WCR_IDIS) {
1678 		snd_iprintf(buffer, "  period size: N/A (interrupts "
1679 			    "disabled)\n");
1680 	} else if (rme96->wcreg & RME96_WCR_ISEL) {
1681 		snd_iprintf(buffer, "  period size: 2048 bytes\n");
1682 	} else {
1683 		snd_iprintf(buffer, "  period size: 8192 bytes\n");
1684 	}
1685 	snd_iprintf(buffer, "\nInput settings\n");
1686 	switch (snd_rme96_getinputtype(rme96)) {
1687 	case RME96_INPUT_OPTICAL:
1688 		snd_iprintf(buffer, "  input: optical");
1689 		break;
1690 	case RME96_INPUT_COAXIAL:
1691 		snd_iprintf(buffer, "  input: coaxial");
1692 		break;
1693 	case RME96_INPUT_INTERNAL:
1694 		snd_iprintf(buffer, "  input: internal");
1695 		break;
1696 	case RME96_INPUT_XLR:
1697 		snd_iprintf(buffer, "  input: XLR");
1698 		break;
1699 	case RME96_INPUT_ANALOG:
1700 		snd_iprintf(buffer, "  input: analog");
1701 		break;
1702 	}
1703 	if (snd_rme96_capture_getrate(rme96, &n) < 0) {
1704 		snd_iprintf(buffer, "\n  sample rate: no valid signal\n");
1705 	} else {
1706 		if (n) {
1707 			snd_iprintf(buffer, " (8 channels)\n");
1708 		} else {
1709 			snd_iprintf(buffer, " (2 channels)\n");
1710 		}
1711 		snd_iprintf(buffer, "  sample rate: %d Hz\n",
1712 			    snd_rme96_capture_getrate(rme96, &n));
1713 	}
1714 	if (rme96->wcreg & RME96_WCR_MODE24_2) {
1715 		snd_iprintf(buffer, "  sample format: 24 bit\n");
1716 	} else {
1717 		snd_iprintf(buffer, "  sample format: 16 bit\n");
1718 	}
1719 
1720 	snd_iprintf(buffer, "\nOutput settings\n");
1721 	if (rme96->wcreg & RME96_WCR_SEL) {
1722 		snd_iprintf(buffer, "  output signal: normal playback\n");
1723 	} else {
1724 		snd_iprintf(buffer, "  output signal: same as input\n");
1725 	}
1726 	snd_iprintf(buffer, "  sample rate: %d Hz\n",
1727 		    snd_rme96_playback_getrate(rme96));
1728 	if (rme96->wcreg & RME96_WCR_MODE24) {
1729 		snd_iprintf(buffer, "  sample format: 24 bit\n");
1730 	} else {
1731 		snd_iprintf(buffer, "  sample format: 16 bit\n");
1732 	}
1733 	if (rme96->areg & RME96_AR_WSEL) {
1734 		snd_iprintf(buffer, "  sample clock source: word clock\n");
1735 	} else if (rme96->wcreg & RME96_WCR_MASTER) {
1736 		snd_iprintf(buffer, "  sample clock source: internal\n");
1737 	} else if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1738 		snd_iprintf(buffer, "  sample clock source: autosync (internal anyway due to analog input setting)\n");
1739 	} else if (snd_rme96_capture_getrate(rme96, &n) < 0) {
1740 		snd_iprintf(buffer, "  sample clock source: autosync (internal anyway due to no valid signal)\n");
1741 	} else {
1742 		snd_iprintf(buffer, "  sample clock source: autosync\n");
1743 	}
1744 	if (rme96->wcreg & RME96_WCR_PRO) {
1745 		snd_iprintf(buffer, "  format: AES/EBU (professional)\n");
1746 	} else {
1747 		snd_iprintf(buffer, "  format: IEC958 (consumer)\n");
1748 	}
1749 	if (rme96->wcreg & RME96_WCR_EMP) {
1750 		snd_iprintf(buffer, "  emphasis: on\n");
1751 	} else {
1752 		snd_iprintf(buffer, "  emphasis: off\n");
1753 	}
1754 	if (rme96->wcreg & RME96_WCR_DOLBY) {
1755 		snd_iprintf(buffer, "  non-audio (dolby): on\n");
1756 	} else {
1757 		snd_iprintf(buffer, "  non-audio (dolby): off\n");
1758 	}
1759 	if (RME96_HAS_ANALOG_IN(rme96)) {
1760 		snd_iprintf(buffer, "\nAnalog output settings\n");
1761 		switch (snd_rme96_getmontracks(rme96)) {
1762 		case RME96_MONITOR_TRACKS_1_2:
1763 			snd_iprintf(buffer, "  monitored ADAT tracks: 1+2\n");
1764 			break;
1765 		case RME96_MONITOR_TRACKS_3_4:
1766 			snd_iprintf(buffer, "  monitored ADAT tracks: 3+4\n");
1767 			break;
1768 		case RME96_MONITOR_TRACKS_5_6:
1769 			snd_iprintf(buffer, "  monitored ADAT tracks: 5+6\n");
1770 			break;
1771 		case RME96_MONITOR_TRACKS_7_8:
1772 			snd_iprintf(buffer, "  monitored ADAT tracks: 7+8\n");
1773 			break;
1774 		}
1775 		switch (snd_rme96_getattenuation(rme96)) {
1776 		case RME96_ATTENUATION_0:
1777 			snd_iprintf(buffer, "  attenuation: 0 dB\n");
1778 			break;
1779 		case RME96_ATTENUATION_6:
1780 			snd_iprintf(buffer, "  attenuation: -6 dB\n");
1781 			break;
1782 		case RME96_ATTENUATION_12:
1783 			snd_iprintf(buffer, "  attenuation: -12 dB\n");
1784 			break;
1785 		case RME96_ATTENUATION_18:
1786 			snd_iprintf(buffer, "  attenuation: -18 dB\n");
1787 			break;
1788 		}
1789 		snd_iprintf(buffer, "  volume left: %u\n", rme96->vol[0]);
1790 		snd_iprintf(buffer, "  volume right: %u\n", rme96->vol[1]);
1791 	}
1792 }
1793 
1794 static void __devinit
1795 snd_rme96_proc_init(struct rme96 *rme96)
1796 {
1797 	struct snd_info_entry *entry;
1798 
1799 	if (! snd_card_proc_new(rme96->card, "rme96", &entry))
1800 		snd_info_set_text_ops(entry, rme96, snd_rme96_proc_read);
1801 }
1802 
1803 /*
1804  * control interface
1805  */
1806 
1807 #define snd_rme96_info_loopback_control		snd_ctl_boolean_mono_info
1808 
1809 static int
1810 snd_rme96_get_loopback_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1811 {
1812 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1813 
1814 	spin_lock_irq(&rme96->lock);
1815 	ucontrol->value.integer.value[0] = rme96->wcreg & RME96_WCR_SEL ? 0 : 1;
1816 	spin_unlock_irq(&rme96->lock);
1817 	return 0;
1818 }
1819 static int
1820 snd_rme96_put_loopback_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1821 {
1822 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1823 	unsigned int val;
1824 	int change;
1825 
1826 	val = ucontrol->value.integer.value[0] ? 0 : RME96_WCR_SEL;
1827 	spin_lock_irq(&rme96->lock);
1828 	val = (rme96->wcreg & ~RME96_WCR_SEL) | val;
1829 	change = val != rme96->wcreg;
1830 	rme96->wcreg = val;
1831 	writel(val, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1832 	spin_unlock_irq(&rme96->lock);
1833 	return change;
1834 }
1835 
1836 static int
1837 snd_rme96_info_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1838 {
1839 	static char *_texts[5] = { "Optical", "Coaxial", "Internal", "XLR", "Analog" };
1840 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1841 	char *texts[5] = { _texts[0], _texts[1], _texts[2], _texts[3], _texts[4] };
1842 
1843 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1844 	uinfo->count = 1;
1845 	switch (rme96->pci->device) {
1846 	case PCI_DEVICE_ID_RME_DIGI96:
1847 	case PCI_DEVICE_ID_RME_DIGI96_8:
1848 		uinfo->value.enumerated.items = 3;
1849 		break;
1850 	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1851 		uinfo->value.enumerated.items = 4;
1852 		break;
1853 	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1854 		if (rme96->rev > 4) {
1855 			/* PST */
1856 			uinfo->value.enumerated.items = 4;
1857 			texts[3] = _texts[4]; /* Analog instead of XLR */
1858 		} else {
1859 			/* PAD */
1860 			uinfo->value.enumerated.items = 5;
1861 		}
1862 		break;
1863 	default:
1864 		snd_BUG();
1865 		break;
1866 	}
1867 	if (uinfo->value.enumerated.item > uinfo->value.enumerated.items - 1) {
1868 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
1869 	}
1870 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1871 	return 0;
1872 }
1873 static int
1874 snd_rme96_get_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1875 {
1876 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1877 	unsigned int items = 3;
1878 
1879 	spin_lock_irq(&rme96->lock);
1880 	ucontrol->value.enumerated.item[0] = snd_rme96_getinputtype(rme96);
1881 
1882 	switch (rme96->pci->device) {
1883 	case PCI_DEVICE_ID_RME_DIGI96:
1884 	case PCI_DEVICE_ID_RME_DIGI96_8:
1885 		items = 3;
1886 		break;
1887 	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1888 		items = 4;
1889 		break;
1890 	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1891 		if (rme96->rev > 4) {
1892 			/* for handling PST case, (INPUT_ANALOG is moved to INPUT_XLR */
1893 			if (ucontrol->value.enumerated.item[0] == RME96_INPUT_ANALOG) {
1894 				ucontrol->value.enumerated.item[0] = RME96_INPUT_XLR;
1895 			}
1896 			items = 4;
1897 		} else {
1898 			items = 5;
1899 		}
1900 		break;
1901 	default:
1902 		snd_BUG();
1903 		break;
1904 	}
1905 	if (ucontrol->value.enumerated.item[0] >= items) {
1906 		ucontrol->value.enumerated.item[0] = items - 1;
1907 	}
1908 
1909 	spin_unlock_irq(&rme96->lock);
1910 	return 0;
1911 }
1912 static int
1913 snd_rme96_put_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1914 {
1915 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1916 	unsigned int val;
1917 	int change, items = 3;
1918 
1919 	switch (rme96->pci->device) {
1920 	case PCI_DEVICE_ID_RME_DIGI96:
1921 	case PCI_DEVICE_ID_RME_DIGI96_8:
1922 		items = 3;
1923 		break;
1924 	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1925 		items = 4;
1926 		break;
1927 	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1928 		if (rme96->rev > 4) {
1929 			items = 4;
1930 		} else {
1931 			items = 5;
1932 		}
1933 		break;
1934 	default:
1935 		snd_BUG();
1936 		break;
1937 	}
1938 	val = ucontrol->value.enumerated.item[0] % items;
1939 
1940 	/* special case for PST */
1941 	if (rme96->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST && rme96->rev > 4) {
1942 		if (val == RME96_INPUT_XLR) {
1943 			val = RME96_INPUT_ANALOG;
1944 		}
1945 	}
1946 
1947 	spin_lock_irq(&rme96->lock);
1948 	change = (int)val != snd_rme96_getinputtype(rme96);
1949 	snd_rme96_setinputtype(rme96, val);
1950 	spin_unlock_irq(&rme96->lock);
1951 	return change;
1952 }
1953 
1954 static int
1955 snd_rme96_info_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1956 {
1957 	static char *texts[3] = { "AutoSync", "Internal", "Word" };
1958 
1959 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1960 	uinfo->count = 1;
1961 	uinfo->value.enumerated.items = 3;
1962 	if (uinfo->value.enumerated.item > 2) {
1963 		uinfo->value.enumerated.item = 2;
1964 	}
1965 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1966 	return 0;
1967 }
1968 static int
1969 snd_rme96_get_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1970 {
1971 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1972 
1973 	spin_lock_irq(&rme96->lock);
1974 	ucontrol->value.enumerated.item[0] = snd_rme96_getclockmode(rme96);
1975 	spin_unlock_irq(&rme96->lock);
1976 	return 0;
1977 }
1978 static int
1979 snd_rme96_put_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1980 {
1981 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1982 	unsigned int val;
1983 	int change;
1984 
1985 	val = ucontrol->value.enumerated.item[0] % 3;
1986 	spin_lock_irq(&rme96->lock);
1987 	change = (int)val != snd_rme96_getclockmode(rme96);
1988 	snd_rme96_setclockmode(rme96, val);
1989 	spin_unlock_irq(&rme96->lock);
1990 	return change;
1991 }
1992 
1993 static int
1994 snd_rme96_info_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1995 {
1996 	static char *texts[4] = { "0 dB", "-6 dB", "-12 dB", "-18 dB" };
1997 
1998 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1999 	uinfo->count = 1;
2000 	uinfo->value.enumerated.items = 4;
2001 	if (uinfo->value.enumerated.item > 3) {
2002 		uinfo->value.enumerated.item = 3;
2003 	}
2004 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2005 	return 0;
2006 }
2007 static int
2008 snd_rme96_get_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2009 {
2010 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2011 
2012 	spin_lock_irq(&rme96->lock);
2013 	ucontrol->value.enumerated.item[0] = snd_rme96_getattenuation(rme96);
2014 	spin_unlock_irq(&rme96->lock);
2015 	return 0;
2016 }
2017 static int
2018 snd_rme96_put_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2019 {
2020 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2021 	unsigned int val;
2022 	int change;
2023 
2024 	val = ucontrol->value.enumerated.item[0] % 4;
2025 	spin_lock_irq(&rme96->lock);
2026 
2027 	change = (int)val != snd_rme96_getattenuation(rme96);
2028 	snd_rme96_setattenuation(rme96, val);
2029 	spin_unlock_irq(&rme96->lock);
2030 	return change;
2031 }
2032 
2033 static int
2034 snd_rme96_info_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2035 {
2036 	static char *texts[4] = { "1+2", "3+4", "5+6", "7+8" };
2037 
2038 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2039 	uinfo->count = 1;
2040 	uinfo->value.enumerated.items = 4;
2041 	if (uinfo->value.enumerated.item > 3) {
2042 		uinfo->value.enumerated.item = 3;
2043 	}
2044 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2045 	return 0;
2046 }
2047 static int
2048 snd_rme96_get_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2049 {
2050 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2051 
2052 	spin_lock_irq(&rme96->lock);
2053 	ucontrol->value.enumerated.item[0] = snd_rme96_getmontracks(rme96);
2054 	spin_unlock_irq(&rme96->lock);
2055 	return 0;
2056 }
2057 static int
2058 snd_rme96_put_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2059 {
2060 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2061 	unsigned int val;
2062 	int change;
2063 
2064 	val = ucontrol->value.enumerated.item[0] % 4;
2065 	spin_lock_irq(&rme96->lock);
2066 	change = (int)val != snd_rme96_getmontracks(rme96);
2067 	snd_rme96_setmontracks(rme96, val);
2068 	spin_unlock_irq(&rme96->lock);
2069 	return change;
2070 }
2071 
2072 static u32 snd_rme96_convert_from_aes(struct snd_aes_iec958 *aes)
2073 {
2074 	u32 val = 0;
2075 	val |= (aes->status[0] & IEC958_AES0_PROFESSIONAL) ? RME96_WCR_PRO : 0;
2076 	val |= (aes->status[0] & IEC958_AES0_NONAUDIO) ? RME96_WCR_DOLBY : 0;
2077 	if (val & RME96_WCR_PRO)
2078 		val |= (aes->status[0] & IEC958_AES0_PRO_EMPHASIS_5015) ? RME96_WCR_EMP : 0;
2079 	else
2080 		val |= (aes->status[0] & IEC958_AES0_CON_EMPHASIS_5015) ? RME96_WCR_EMP : 0;
2081 	return val;
2082 }
2083 
2084 static void snd_rme96_convert_to_aes(struct snd_aes_iec958 *aes, u32 val)
2085 {
2086 	aes->status[0] = ((val & RME96_WCR_PRO) ? IEC958_AES0_PROFESSIONAL : 0) |
2087 			 ((val & RME96_WCR_DOLBY) ? IEC958_AES0_NONAUDIO : 0);
2088 	if (val & RME96_WCR_PRO)
2089 		aes->status[0] |= (val & RME96_WCR_EMP) ? IEC958_AES0_PRO_EMPHASIS_5015 : 0;
2090 	else
2091 		aes->status[0] |= (val & RME96_WCR_EMP) ? IEC958_AES0_CON_EMPHASIS_5015 : 0;
2092 }
2093 
2094 static int snd_rme96_control_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2095 {
2096 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2097 	uinfo->count = 1;
2098 	return 0;
2099 }
2100 
2101 static int snd_rme96_control_spdif_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2102 {
2103 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2104 
2105 	snd_rme96_convert_to_aes(&ucontrol->value.iec958, rme96->wcreg_spdif);
2106 	return 0;
2107 }
2108 
2109 static int snd_rme96_control_spdif_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2110 {
2111 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2112 	int change;
2113 	u32 val;
2114 
2115 	val = snd_rme96_convert_from_aes(&ucontrol->value.iec958);
2116 	spin_lock_irq(&rme96->lock);
2117 	change = val != rme96->wcreg_spdif;
2118 	rme96->wcreg_spdif = val;
2119 	spin_unlock_irq(&rme96->lock);
2120 	return change;
2121 }
2122 
2123 static int snd_rme96_control_spdif_stream_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2124 {
2125 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2126 	uinfo->count = 1;
2127 	return 0;
2128 }
2129 
2130 static int snd_rme96_control_spdif_stream_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2131 {
2132 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2133 
2134 	snd_rme96_convert_to_aes(&ucontrol->value.iec958, rme96->wcreg_spdif_stream);
2135 	return 0;
2136 }
2137 
2138 static int snd_rme96_control_spdif_stream_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2139 {
2140 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2141 	int change;
2142 	u32 val;
2143 
2144 	val = snd_rme96_convert_from_aes(&ucontrol->value.iec958);
2145 	spin_lock_irq(&rme96->lock);
2146 	change = val != rme96->wcreg_spdif_stream;
2147 	rme96->wcreg_spdif_stream = val;
2148 	rme96->wcreg &= ~(RME96_WCR_PRO | RME96_WCR_DOLBY | RME96_WCR_EMP);
2149 	rme96->wcreg |= val;
2150 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
2151 	spin_unlock_irq(&rme96->lock);
2152 	return change;
2153 }
2154 
2155 static int snd_rme96_control_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2156 {
2157 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2158 	uinfo->count = 1;
2159 	return 0;
2160 }
2161 
2162 static int snd_rme96_control_spdif_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2163 {
2164 	ucontrol->value.iec958.status[0] = kcontrol->private_value;
2165 	return 0;
2166 }
2167 
2168 static int
2169 snd_rme96_dac_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2170 {
2171 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2172 
2173         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2174         uinfo->count = 2;
2175         uinfo->value.integer.min = 0;
2176 	uinfo->value.integer.max = RME96_185X_MAX_OUT(rme96);
2177         return 0;
2178 }
2179 
2180 static int
2181 snd_rme96_dac_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *u)
2182 {
2183 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2184 
2185 	spin_lock_irq(&rme96->lock);
2186         u->value.integer.value[0] = rme96->vol[0];
2187         u->value.integer.value[1] = rme96->vol[1];
2188 	spin_unlock_irq(&rme96->lock);
2189 
2190         return 0;
2191 }
2192 
2193 static int
2194 snd_rme96_dac_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *u)
2195 {
2196 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2197         int change = 0;
2198 	unsigned int vol, maxvol;
2199 
2200 
2201 	if (!RME96_HAS_ANALOG_OUT(rme96))
2202 		return -EINVAL;
2203 	maxvol = RME96_185X_MAX_OUT(rme96);
2204 	spin_lock_irq(&rme96->lock);
2205 	vol = u->value.integer.value[0];
2206 	if (vol != rme96->vol[0] && vol <= maxvol) {
2207 		rme96->vol[0] = vol;
2208 		change = 1;
2209 	}
2210 	vol = u->value.integer.value[1];
2211 	if (vol != rme96->vol[1] && vol <= maxvol) {
2212 		rme96->vol[1] = vol;
2213 		change = 1;
2214 	}
2215 	if (change)
2216 		snd_rme96_apply_dac_volume(rme96);
2217 	spin_unlock_irq(&rme96->lock);
2218 
2219         return change;
2220 }
2221 
2222 static struct snd_kcontrol_new snd_rme96_controls[] = {
2223 {
2224 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2225 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
2226 	.info =		snd_rme96_control_spdif_info,
2227 	.get =		snd_rme96_control_spdif_get,
2228 	.put =		snd_rme96_control_spdif_put
2229 },
2230 {
2231 	.access =	SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
2232 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2233 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
2234 	.info =		snd_rme96_control_spdif_stream_info,
2235 	.get =		snd_rme96_control_spdif_stream_get,
2236 	.put =		snd_rme96_control_spdif_stream_put
2237 },
2238 {
2239 	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
2240 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2241 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
2242 	.info =		snd_rme96_control_spdif_mask_info,
2243 	.get =		snd_rme96_control_spdif_mask_get,
2244 	.private_value = IEC958_AES0_NONAUDIO |
2245 			IEC958_AES0_PROFESSIONAL |
2246 			IEC958_AES0_CON_EMPHASIS
2247 },
2248 {
2249 	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
2250 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2251 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
2252 	.info =		snd_rme96_control_spdif_mask_info,
2253 	.get =		snd_rme96_control_spdif_mask_get,
2254 	.private_value = IEC958_AES0_NONAUDIO |
2255 			IEC958_AES0_PROFESSIONAL |
2256 			IEC958_AES0_PRO_EMPHASIS
2257 },
2258 {
2259         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2260 	.name =         "Input Connector",
2261 	.info =         snd_rme96_info_inputtype_control,
2262 	.get =          snd_rme96_get_inputtype_control,
2263 	.put =          snd_rme96_put_inputtype_control
2264 },
2265 {
2266         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2267 	.name =         "Loopback Input",
2268 	.info =         snd_rme96_info_loopback_control,
2269 	.get =          snd_rme96_get_loopback_control,
2270 	.put =          snd_rme96_put_loopback_control
2271 },
2272 {
2273         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2274 	.name =         "Sample Clock Source",
2275 	.info =         snd_rme96_info_clockmode_control,
2276 	.get =          snd_rme96_get_clockmode_control,
2277 	.put =          snd_rme96_put_clockmode_control
2278 },
2279 {
2280         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2281 	.name =         "Monitor Tracks",
2282 	.info =         snd_rme96_info_montracks_control,
2283 	.get =          snd_rme96_get_montracks_control,
2284 	.put =          snd_rme96_put_montracks_control
2285 },
2286 {
2287         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2288 	.name =         "Attenuation",
2289 	.info =         snd_rme96_info_attenuation_control,
2290 	.get =          snd_rme96_get_attenuation_control,
2291 	.put =          snd_rme96_put_attenuation_control
2292 },
2293 {
2294         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2295 	.name =         "DAC Playback Volume",
2296 	.info =         snd_rme96_dac_volume_info,
2297 	.get =          snd_rme96_dac_volume_get,
2298 	.put =          snd_rme96_dac_volume_put
2299 }
2300 };
2301 
2302 static int
2303 snd_rme96_create_switches(struct snd_card *card,
2304 			  struct rme96 *rme96)
2305 {
2306 	int idx, err;
2307 	struct snd_kcontrol *kctl;
2308 
2309 	for (idx = 0; idx < 7; idx++) {
2310 		if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme96_controls[idx], rme96))) < 0)
2311 			return err;
2312 		if (idx == 1)	/* IEC958 (S/PDIF) Stream */
2313 			rme96->spdif_ctl = kctl;
2314 	}
2315 
2316 	if (RME96_HAS_ANALOG_OUT(rme96)) {
2317 		for (idx = 7; idx < 10; idx++)
2318 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_rme96_controls[idx], rme96))) < 0)
2319 				return err;
2320 	}
2321 
2322 	return 0;
2323 }
2324 
2325 /*
2326  * Card initialisation
2327  */
2328 
2329 static void snd_rme96_card_free(struct snd_card *card)
2330 {
2331 	snd_rme96_free(card->private_data);
2332 }
2333 
2334 static int __devinit
2335 snd_rme96_probe(struct pci_dev *pci,
2336 		const struct pci_device_id *pci_id)
2337 {
2338 	static int dev;
2339 	struct rme96 *rme96;
2340 	struct snd_card *card;
2341 	int err;
2342 	u8 val;
2343 
2344 	if (dev >= SNDRV_CARDS) {
2345 		return -ENODEV;
2346 	}
2347 	if (!enable[dev]) {
2348 		dev++;
2349 		return -ENOENT;
2350 	}
2351 	if ((card = snd_card_new(index[dev], id[dev], THIS_MODULE,
2352 				 sizeof(struct rme96))) == NULL)
2353 		return -ENOMEM;
2354 	card->private_free = snd_rme96_card_free;
2355 	rme96 = (struct rme96 *)card->private_data;
2356 	rme96->card = card;
2357 	rme96->pci = pci;
2358 	snd_card_set_dev(card, &pci->dev);
2359 	if ((err = snd_rme96_create(rme96)) < 0) {
2360 		snd_card_free(card);
2361 		return err;
2362 	}
2363 
2364 	strcpy(card->driver, "Digi96");
2365 	switch (rme96->pci->device) {
2366 	case PCI_DEVICE_ID_RME_DIGI96:
2367 		strcpy(card->shortname, "RME Digi96");
2368 		break;
2369 	case PCI_DEVICE_ID_RME_DIGI96_8:
2370 		strcpy(card->shortname, "RME Digi96/8");
2371 		break;
2372 	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
2373 		strcpy(card->shortname, "RME Digi96/8 PRO");
2374 		break;
2375 	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
2376 		pci_read_config_byte(rme96->pci, 8, &val);
2377 		if (val < 5) {
2378 			strcpy(card->shortname, "RME Digi96/8 PAD");
2379 		} else {
2380 			strcpy(card->shortname, "RME Digi96/8 PST");
2381 		}
2382 		break;
2383 	}
2384 	sprintf(card->longname, "%s at 0x%lx, irq %d", card->shortname,
2385 		rme96->port, rme96->irq);
2386 
2387 	if ((err = snd_card_register(card)) < 0) {
2388 		snd_card_free(card);
2389 		return err;
2390 	}
2391 	pci_set_drvdata(pci, card);
2392 	dev++;
2393 	return 0;
2394 }
2395 
2396 static void __devexit snd_rme96_remove(struct pci_dev *pci)
2397 {
2398 	snd_card_free(pci_get_drvdata(pci));
2399 	pci_set_drvdata(pci, NULL);
2400 }
2401 
2402 static struct pci_driver driver = {
2403 	.name = "RME Digi96",
2404 	.id_table = snd_rme96_ids,
2405 	.probe = snd_rme96_probe,
2406 	.remove = __devexit_p(snd_rme96_remove),
2407 };
2408 
2409 static int __init alsa_card_rme96_init(void)
2410 {
2411 	return pci_register_driver(&driver);
2412 }
2413 
2414 static void __exit alsa_card_rme96_exit(void)
2415 {
2416 	pci_unregister_driver(&driver);
2417 }
2418 
2419 module_init(alsa_card_rme96_init)
2420 module_exit(alsa_card_rme96_exit)
2421