xref: /openbmc/linux/sound/pci/rme96.c (revision 87c2ce3b)
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 <sound/driver.h>
27 #include <linux/delay.h>
28 #include <linux/init.h>
29 #include <linux/interrupt.h>
30 #include <linux/pci.h>
31 #include <linux/slab.h>
32 #include <linux/moduleparam.h>
33 
34 #include <sound/core.h>
35 #include <sound/info.h>
36 #include <sound/control.h>
37 #include <sound/pcm.h>
38 #include <sound/pcm_params.h>
39 #include <sound/asoundef.h>
40 #include <sound/initval.h>
41 
42 #include <asm/io.h>
43 
44 /* note, two last pcis should be equal, it is not a bug */
45 
46 MODULE_AUTHOR("Anders Torger <torger@ludd.luth.se>");
47 MODULE_DESCRIPTION("RME Digi96, Digi96/8, Digi96/8 PRO, Digi96/8 PST, "
48 		   "Digi96/8 PAD");
49 MODULE_LICENSE("GPL");
50 MODULE_SUPPORTED_DEVICE("{{RME,Digi96},"
51 		"{RME,Digi96/8},"
52 		"{RME,Digi96/8 PRO},"
53 		"{RME,Digi96/8 PST},"
54 		"{RME,Digi96/8 PAD}}");
55 
56 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
57 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
58 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable this card */
59 
60 module_param_array(index, int, NULL, 0444);
61 MODULE_PARM_DESC(index, "Index value for RME Digi96 soundcard.");
62 module_param_array(id, charp, NULL, 0444);
63 MODULE_PARM_DESC(id, "ID string for RME Digi96 soundcard.");
64 module_param_array(enable, bool, NULL, 0444);
65 MODULE_PARM_DESC(enable, "Enable RME Digi96 soundcard.");
66 
67 /*
68  * Defines for RME Digi96 series, from internal RME reference documents
69  * dated 12.01.00
70  */
71 
72 #define RME96_SPDIF_NCHANNELS 2
73 
74 /* Playback and capture buffer size */
75 #define RME96_BUFFER_SIZE 0x10000
76 
77 /* IO area size */
78 #define RME96_IO_SIZE 0x60000
79 
80 /* IO area offsets */
81 #define RME96_IO_PLAY_BUFFER      0x0
82 #define RME96_IO_REC_BUFFER       0x10000
83 #define RME96_IO_CONTROL_REGISTER 0x20000
84 #define RME96_IO_ADDITIONAL_REG   0x20004
85 #define RME96_IO_CONFIRM_PLAY_IRQ 0x20008
86 #define RME96_IO_CONFIRM_REC_IRQ  0x2000C
87 #define RME96_IO_SET_PLAY_POS     0x40000
88 #define RME96_IO_RESET_PLAY_POS   0x4FFFC
89 #define RME96_IO_SET_REC_POS      0x50000
90 #define RME96_IO_RESET_REC_POS    0x5FFFC
91 #define RME96_IO_GET_PLAY_POS     0x20000
92 #define RME96_IO_GET_REC_POS      0x30000
93 
94 /* Write control register bits */
95 #define RME96_WCR_START     (1 << 0)
96 #define RME96_WCR_START_2   (1 << 1)
97 #define RME96_WCR_GAIN_0    (1 << 2)
98 #define RME96_WCR_GAIN_1    (1 << 3)
99 #define RME96_WCR_MODE24    (1 << 4)
100 #define RME96_WCR_MODE24_2  (1 << 5)
101 #define RME96_WCR_BM        (1 << 6)
102 #define RME96_WCR_BM_2      (1 << 7)
103 #define RME96_WCR_ADAT      (1 << 8)
104 #define RME96_WCR_FREQ_0    (1 << 9)
105 #define RME96_WCR_FREQ_1    (1 << 10)
106 #define RME96_WCR_DS        (1 << 11)
107 #define RME96_WCR_PRO       (1 << 12)
108 #define RME96_WCR_EMP       (1 << 13)
109 #define RME96_WCR_SEL       (1 << 14)
110 #define RME96_WCR_MASTER    (1 << 15)
111 #define RME96_WCR_PD        (1 << 16)
112 #define RME96_WCR_INP_0     (1 << 17)
113 #define RME96_WCR_INP_1     (1 << 18)
114 #define RME96_WCR_THRU_0    (1 << 19)
115 #define RME96_WCR_THRU_1    (1 << 20)
116 #define RME96_WCR_THRU_2    (1 << 21)
117 #define RME96_WCR_THRU_3    (1 << 22)
118 #define RME96_WCR_THRU_4    (1 << 23)
119 #define RME96_WCR_THRU_5    (1 << 24)
120 #define RME96_WCR_THRU_6    (1 << 25)
121 #define RME96_WCR_THRU_7    (1 << 26)
122 #define RME96_WCR_DOLBY     (1 << 27)
123 #define RME96_WCR_MONITOR_0 (1 << 28)
124 #define RME96_WCR_MONITOR_1 (1 << 29)
125 #define RME96_WCR_ISEL      (1 << 30)
126 #define RME96_WCR_IDIS      (1 << 31)
127 
128 #define RME96_WCR_BITPOS_GAIN_0 2
129 #define RME96_WCR_BITPOS_GAIN_1 3
130 #define RME96_WCR_BITPOS_FREQ_0 9
131 #define RME96_WCR_BITPOS_FREQ_1 10
132 #define RME96_WCR_BITPOS_INP_0 17
133 #define RME96_WCR_BITPOS_INP_1 18
134 #define RME96_WCR_BITPOS_MONITOR_0 28
135 #define RME96_WCR_BITPOS_MONITOR_1 29
136 
137 /* Read control register bits */
138 #define RME96_RCR_AUDIO_ADDR_MASK 0xFFFF
139 #define RME96_RCR_IRQ_2     (1 << 16)
140 #define RME96_RCR_T_OUT     (1 << 17)
141 #define RME96_RCR_DEV_ID_0  (1 << 21)
142 #define RME96_RCR_DEV_ID_1  (1 << 22)
143 #define RME96_RCR_LOCK      (1 << 23)
144 #define RME96_RCR_VERF      (1 << 26)
145 #define RME96_RCR_F0        (1 << 27)
146 #define RME96_RCR_F1        (1 << 28)
147 #define RME96_RCR_F2        (1 << 29)
148 #define RME96_RCR_AUTOSYNC  (1 << 30)
149 #define RME96_RCR_IRQ       (1 << 31)
150 
151 #define RME96_RCR_BITPOS_F0 27
152 #define RME96_RCR_BITPOS_F1 28
153 #define RME96_RCR_BITPOS_F2 29
154 
155 /* Additonal register bits */
156 #define RME96_AR_WSEL       (1 << 0)
157 #define RME96_AR_ANALOG     (1 << 1)
158 #define RME96_AR_FREQPAD_0  (1 << 2)
159 #define RME96_AR_FREQPAD_1  (1 << 3)
160 #define RME96_AR_FREQPAD_2  (1 << 4)
161 #define RME96_AR_PD2        (1 << 5)
162 #define RME96_AR_DAC_EN     (1 << 6)
163 #define RME96_AR_CLATCH     (1 << 7)
164 #define RME96_AR_CCLK       (1 << 8)
165 #define RME96_AR_CDATA      (1 << 9)
166 
167 #define RME96_AR_BITPOS_F0 2
168 #define RME96_AR_BITPOS_F1 3
169 #define RME96_AR_BITPOS_F2 4
170 
171 /* Monitor tracks */
172 #define RME96_MONITOR_TRACKS_1_2 0
173 #define RME96_MONITOR_TRACKS_3_4 1
174 #define RME96_MONITOR_TRACKS_5_6 2
175 #define RME96_MONITOR_TRACKS_7_8 3
176 
177 /* Attenuation */
178 #define RME96_ATTENUATION_0 0
179 #define RME96_ATTENUATION_6 1
180 #define RME96_ATTENUATION_12 2
181 #define RME96_ATTENUATION_18 3
182 
183 /* Input types */
184 #define RME96_INPUT_OPTICAL 0
185 #define RME96_INPUT_COAXIAL 1
186 #define RME96_INPUT_INTERNAL 2
187 #define RME96_INPUT_XLR 3
188 #define RME96_INPUT_ANALOG 4
189 
190 /* Clock modes */
191 #define RME96_CLOCKMODE_SLAVE 0
192 #define RME96_CLOCKMODE_MASTER 1
193 #define RME96_CLOCKMODE_WORDCLOCK 2
194 
195 /* Block sizes in bytes */
196 #define RME96_SMALL_BLOCK_SIZE 2048
197 #define RME96_LARGE_BLOCK_SIZE 8192
198 
199 /* Volume control */
200 #define RME96_AD1852_VOL_BITS 14
201 #define RME96_AD1855_VOL_BITS 10
202 
203 
204 struct rme96 {
205 	spinlock_t    lock;
206 	int irq;
207 	unsigned long port;
208 	void __iomem *iobase;
209 
210 	u32 wcreg;    /* cached write control register value */
211 	u32 wcreg_spdif;		/* S/PDIF setup */
212 	u32 wcreg_spdif_stream;		/* S/PDIF setup (temporary) */
213 	u32 rcreg;    /* cached read control register value */
214 	u32 areg;     /* cached additional register value */
215 	u16 vol[2]; /* cached volume of analog output */
216 
217 	u8 rev; /* card revision number */
218 
219 	struct snd_pcm_substream *playback_substream;
220 	struct snd_pcm_substream *capture_substream;
221 
222 	int playback_frlog; /* log2 of framesize */
223 	int capture_frlog;
224 
225         size_t playback_periodsize; /* in bytes, zero if not used */
226 	size_t capture_periodsize; /* in bytes, zero if not used */
227 
228 	struct snd_card *card;
229 	struct snd_pcm *spdif_pcm;
230 	struct snd_pcm *adat_pcm;
231 	struct pci_dev     *pci;
232 	struct snd_kcontrol   *spdif_ctl;
233 };
234 
235 static struct pci_device_id snd_rme96_ids[] = {
236 	{ PCI_VENDOR_ID_XILINX, PCI_DEVICE_ID_RME_DIGI96,
237 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
238 	{ PCI_VENDOR_ID_XILINX, PCI_DEVICE_ID_RME_DIGI96_8,
239 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
240 	{ PCI_VENDOR_ID_XILINX, PCI_DEVICE_ID_RME_DIGI96_8_PRO,
241 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
242 	{ PCI_VENDOR_ID_XILINX, PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST,
243 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
244 	{ 0, }
245 };
246 
247 MODULE_DEVICE_TABLE(pci, snd_rme96_ids);
248 
249 #define RME96_ISPLAYING(rme96) ((rme96)->wcreg & RME96_WCR_START)
250 #define RME96_ISRECORDING(rme96) ((rme96)->wcreg & RME96_WCR_START_2)
251 #define	RME96_HAS_ANALOG_IN(rme96) ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST)
252 #define	RME96_HAS_ANALOG_OUT(rme96) ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PRO || \
253 				     (rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST)
254 #define	RME96_DAC_IS_1852(rme96) (RME96_HAS_ANALOG_OUT(rme96) && (rme96)->rev >= 4)
255 #define	RME96_DAC_IS_1855(rme96) (((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST && (rme96)->rev < 4) || \
256 			          ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PRO && (rme96)->rev == 2))
257 #define	RME96_185X_MAX_OUT(rme96) ((1 << (RME96_DAC_IS_1852(rme96) ? RME96_AD1852_VOL_BITS : RME96_AD1855_VOL_BITS)) - 1)
258 
259 static int
260 snd_rme96_playback_prepare(struct snd_pcm_substream *substream);
261 
262 static int
263 snd_rme96_capture_prepare(struct snd_pcm_substream *substream);
264 
265 static int
266 snd_rme96_playback_trigger(struct snd_pcm_substream *substream,
267 			   int cmd);
268 
269 static int
270 snd_rme96_capture_trigger(struct snd_pcm_substream *substream,
271 			  int cmd);
272 
273 static snd_pcm_uframes_t
274 snd_rme96_playback_pointer(struct snd_pcm_substream *substream);
275 
276 static snd_pcm_uframes_t
277 snd_rme96_capture_pointer(struct snd_pcm_substream *substream);
278 
279 static void __devinit
280 snd_rme96_proc_init(struct rme96 *rme96);
281 
282 static int
283 snd_rme96_create_switches(struct snd_card *card,
284 			  struct rme96 *rme96);
285 
286 static int
287 snd_rme96_getinputtype(struct rme96 *rme96);
288 
289 static inline unsigned int
290 snd_rme96_playback_ptr(struct rme96 *rme96)
291 {
292 	return (readl(rme96->iobase + RME96_IO_GET_PLAY_POS)
293 		& RME96_RCR_AUDIO_ADDR_MASK) >> rme96->playback_frlog;
294 }
295 
296 static inline unsigned int
297 snd_rme96_capture_ptr(struct rme96 *rme96)
298 {
299 	return (readl(rme96->iobase + RME96_IO_GET_REC_POS)
300 		& RME96_RCR_AUDIO_ADDR_MASK) >> rme96->capture_frlog;
301 }
302 
303 static int
304 snd_rme96_ratecode(int rate)
305 {
306     switch (rate) {
307     case 32000: return SNDRV_PCM_RATE_32000;
308     case 44100: return SNDRV_PCM_RATE_44100;
309     case 48000: return SNDRV_PCM_RATE_48000;
310     case 64000: return SNDRV_PCM_RATE_64000;
311     case 88200: return SNDRV_PCM_RATE_88200;
312     case 96000: return SNDRV_PCM_RATE_96000;
313     }
314     return 0;
315 }
316 
317 static int
318 snd_rme96_playback_silence(struct snd_pcm_substream *substream,
319 			   int channel, /* not used (interleaved data) */
320 			   snd_pcm_uframes_t pos,
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 	memset_io(rme96->iobase + RME96_IO_PLAY_BUFFER + pos,
327 		  0, count);
328 	return 0;
329 }
330 
331 static int
332 snd_rme96_playback_copy(struct snd_pcm_substream *substream,
333 			int channel, /* not used (interleaved data) */
334 			snd_pcm_uframes_t pos,
335 			void __user *src,
336 			snd_pcm_uframes_t count)
337 {
338 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
339 	count <<= rme96->playback_frlog;
340 	pos <<= rme96->playback_frlog;
341 	copy_from_user_toio(rme96->iobase + RME96_IO_PLAY_BUFFER + pos, src,
342 			    count);
343 	return 0;
344 }
345 
346 static int
347 snd_rme96_capture_copy(struct snd_pcm_substream *substream,
348 		       int channel, /* not used (interleaved data) */
349 		       snd_pcm_uframes_t pos,
350 		       void __user *dst,
351 		       snd_pcm_uframes_t count)
352 {
353 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
354 	count <<= rme96->capture_frlog;
355 	pos <<= rme96->capture_frlog;
356 	copy_to_user_fromio(dst, rme96->iobase + RME96_IO_REC_BUFFER + pos,
357 			    count);
358         return 0;
359 }
360 
361 /*
362  * Digital output capabilites (S/PDIF)
363  */
364 static struct snd_pcm_hardware snd_rme96_playback_spdif_info =
365 {
366 	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
367 			      SNDRV_PCM_INFO_MMAP_VALID |
368 			      SNDRV_PCM_INFO_INTERLEAVED |
369 			      SNDRV_PCM_INFO_PAUSE),
370 	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
371 			      SNDRV_PCM_FMTBIT_S32_LE),
372 	.rates =	     (SNDRV_PCM_RATE_32000 |
373 			      SNDRV_PCM_RATE_44100 |
374 			      SNDRV_PCM_RATE_48000 |
375 			      SNDRV_PCM_RATE_64000 |
376 			      SNDRV_PCM_RATE_88200 |
377 			      SNDRV_PCM_RATE_96000),
378 	.rate_min =	     32000,
379 	.rate_max =	     96000,
380 	.channels_min =	     2,
381 	.channels_max =	     2,
382 	.buffer_bytes_max =  RME96_BUFFER_SIZE,
383 	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
384 	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
385 	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
386 	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
387 	.fifo_size =	     0,
388 };
389 
390 /*
391  * Digital input capabilites (S/PDIF)
392  */
393 static struct snd_pcm_hardware snd_rme96_capture_spdif_info =
394 {
395 	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
396 			      SNDRV_PCM_INFO_MMAP_VALID |
397 			      SNDRV_PCM_INFO_INTERLEAVED |
398 			      SNDRV_PCM_INFO_PAUSE),
399 	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
400 			      SNDRV_PCM_FMTBIT_S32_LE),
401 	.rates =	     (SNDRV_PCM_RATE_32000 |
402 			      SNDRV_PCM_RATE_44100 |
403 			      SNDRV_PCM_RATE_48000 |
404 			      SNDRV_PCM_RATE_64000 |
405 			      SNDRV_PCM_RATE_88200 |
406 			      SNDRV_PCM_RATE_96000),
407 	.rate_min =	     32000,
408 	.rate_max =	     96000,
409 	.channels_min =	     2,
410 	.channels_max =	     2,
411 	.buffer_bytes_max =  RME96_BUFFER_SIZE,
412 	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
413 	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
414 	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
415 	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
416 	.fifo_size =	     0,
417 };
418 
419 /*
420  * Digital output capabilites (ADAT)
421  */
422 static struct snd_pcm_hardware snd_rme96_playback_adat_info =
423 {
424 	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
425 			      SNDRV_PCM_INFO_MMAP_VALID |
426 			      SNDRV_PCM_INFO_INTERLEAVED |
427 			      SNDRV_PCM_INFO_PAUSE),
428 	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
429 			      SNDRV_PCM_FMTBIT_S32_LE),
430 	.rates =             (SNDRV_PCM_RATE_44100 |
431 			      SNDRV_PCM_RATE_48000),
432 	.rate_min =          44100,
433 	.rate_max =          48000,
434 	.channels_min =      8,
435 	.channels_max =	     8,
436 	.buffer_bytes_max =  RME96_BUFFER_SIZE,
437 	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
438 	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
439 	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
440 	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
441 	.fifo_size =	     0,
442 };
443 
444 /*
445  * Digital input capabilites (ADAT)
446  */
447 static struct snd_pcm_hardware snd_rme96_capture_adat_info =
448 {
449 	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
450 			      SNDRV_PCM_INFO_MMAP_VALID |
451 			      SNDRV_PCM_INFO_INTERLEAVED |
452 			      SNDRV_PCM_INFO_PAUSE),
453 	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
454 			      SNDRV_PCM_FMTBIT_S32_LE),
455 	.rates =	     (SNDRV_PCM_RATE_44100 |
456 			      SNDRV_PCM_RATE_48000),
457 	.rate_min =          44100,
458 	.rate_max =          48000,
459 	.channels_min =      8,
460 	.channels_max =	     8,
461 	.buffer_bytes_max =  RME96_BUFFER_SIZE,
462 	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
463 	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
464 	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
465 	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
466 	.fifo_size =         0,
467 };
468 
469 /*
470  * The CDATA, CCLK and CLATCH bits can be used to write to the SPI interface
471  * of the AD1852 or AD1852 D/A converter on the board.  CDATA must be set up
472  * on the falling edge of CCLK and be stable on the rising edge.  The rising
473  * edge of CLATCH after the last data bit clocks in the whole data word.
474  * A fast processor could probably drive the SPI interface faster than the
475  * DAC can handle (3MHz for the 1855, unknown for the 1852).  The udelay(1)
476  * limits the data rate to 500KHz and only causes a delay of 33 microsecs.
477  *
478  * NOTE: increased delay from 1 to 10, since there where problems setting
479  * the volume.
480  */
481 static void
482 snd_rme96_write_SPI(struct rme96 *rme96, u16 val)
483 {
484 	int i;
485 
486 	for (i = 0; i < 16; i++) {
487 		if (val & 0x8000) {
488 			rme96->areg |= RME96_AR_CDATA;
489 		} else {
490 			rme96->areg &= ~RME96_AR_CDATA;
491 		}
492 		rme96->areg &= ~(RME96_AR_CCLK | RME96_AR_CLATCH);
493 		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
494 		udelay(10);
495 		rme96->areg |= RME96_AR_CCLK;
496 		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
497 		udelay(10);
498 		val <<= 1;
499 	}
500 	rme96->areg &= ~(RME96_AR_CCLK | RME96_AR_CDATA);
501 	rme96->areg |= RME96_AR_CLATCH;
502 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
503 	udelay(10);
504 	rme96->areg &= ~RME96_AR_CLATCH;
505 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
506 }
507 
508 static void
509 snd_rme96_apply_dac_volume(struct rme96 *rme96)
510 {
511 	if (RME96_DAC_IS_1852(rme96)) {
512 		snd_rme96_write_SPI(rme96, (rme96->vol[0] << 2) | 0x0);
513 		snd_rme96_write_SPI(rme96, (rme96->vol[1] << 2) | 0x2);
514 	} else if (RME96_DAC_IS_1855(rme96)) {
515 		snd_rme96_write_SPI(rme96, (rme96->vol[0] & 0x3FF) | 0x000);
516 		snd_rme96_write_SPI(rme96, (rme96->vol[1] & 0x3FF) | 0x400);
517 	}
518 }
519 
520 static void
521 snd_rme96_reset_dac(struct rme96 *rme96)
522 {
523 	writel(rme96->wcreg | RME96_WCR_PD,
524 	       rme96->iobase + RME96_IO_CONTROL_REGISTER);
525 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
526 }
527 
528 static int
529 snd_rme96_getmontracks(struct rme96 *rme96)
530 {
531 	return ((rme96->wcreg >> RME96_WCR_BITPOS_MONITOR_0) & 1) +
532 		(((rme96->wcreg >> RME96_WCR_BITPOS_MONITOR_1) & 1) << 1);
533 }
534 
535 static int
536 snd_rme96_setmontracks(struct rme96 *rme96,
537 		       int montracks)
538 {
539 	if (montracks & 1) {
540 		rme96->wcreg |= RME96_WCR_MONITOR_0;
541 	} else {
542 		rme96->wcreg &= ~RME96_WCR_MONITOR_0;
543 	}
544 	if (montracks & 2) {
545 		rme96->wcreg |= RME96_WCR_MONITOR_1;
546 	} else {
547 		rme96->wcreg &= ~RME96_WCR_MONITOR_1;
548 	}
549 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
550 	return 0;
551 }
552 
553 static int
554 snd_rme96_getattenuation(struct rme96 *rme96)
555 {
556 	return ((rme96->wcreg >> RME96_WCR_BITPOS_GAIN_0) & 1) +
557 		(((rme96->wcreg >> RME96_WCR_BITPOS_GAIN_1) & 1) << 1);
558 }
559 
560 static int
561 snd_rme96_setattenuation(struct rme96 *rme96,
562 			 int attenuation)
563 {
564 	switch (attenuation) {
565 	case 0:
566 		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_GAIN_0) &
567 			~RME96_WCR_GAIN_1;
568 		break;
569 	case 1:
570 		rme96->wcreg = (rme96->wcreg | RME96_WCR_GAIN_0) &
571 			~RME96_WCR_GAIN_1;
572 		break;
573 	case 2:
574 		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_GAIN_0) |
575 			RME96_WCR_GAIN_1;
576 		break;
577 	case 3:
578 		rme96->wcreg = (rme96->wcreg | RME96_WCR_GAIN_0) |
579 			RME96_WCR_GAIN_1;
580 		break;
581 	default:
582 		return -EINVAL;
583 	}
584 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
585 	return 0;
586 }
587 
588 static int
589 snd_rme96_capture_getrate(struct rme96 *rme96,
590 			  int *is_adat)
591 {
592 	int n, rate;
593 
594 	*is_adat = 0;
595 	if (rme96->areg & RME96_AR_ANALOG) {
596 		/* Analog input, overrides S/PDIF setting */
597 		n = ((rme96->areg >> RME96_AR_BITPOS_F0) & 1) +
598 			(((rme96->areg >> RME96_AR_BITPOS_F1) & 1) << 1);
599 		switch (n) {
600 		case 1:
601 			rate = 32000;
602 			break;
603 		case 2:
604 			rate = 44100;
605 			break;
606 		case 3:
607 			rate = 48000;
608 			break;
609 		default:
610 			return -1;
611 		}
612 		return (rme96->areg & RME96_AR_BITPOS_F2) ? rate << 1 : rate;
613 	}
614 
615 	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
616 	if (rme96->rcreg & RME96_RCR_LOCK) {
617 		/* ADAT rate */
618 		*is_adat = 1;
619 		if (rme96->rcreg & RME96_RCR_T_OUT) {
620 			return 48000;
621 		}
622 		return 44100;
623 	}
624 
625 	if (rme96->rcreg & RME96_RCR_VERF) {
626 		return -1;
627 	}
628 
629 	/* S/PDIF rate */
630 	n = ((rme96->rcreg >> RME96_RCR_BITPOS_F0) & 1) +
631 		(((rme96->rcreg >> RME96_RCR_BITPOS_F1) & 1) << 1) +
632 		(((rme96->rcreg >> RME96_RCR_BITPOS_F2) & 1) << 2);
633 
634 	switch (n) {
635 	case 0:
636 		if (rme96->rcreg & RME96_RCR_T_OUT) {
637 			return 64000;
638 		}
639 		return -1;
640 	case 3: return 96000;
641 	case 4: return 88200;
642 	case 5: return 48000;
643 	case 6: return 44100;
644 	case 7: return 32000;
645 	default:
646 		break;
647 	}
648 	return -1;
649 }
650 
651 static int
652 snd_rme96_playback_getrate(struct rme96 *rme96)
653 {
654 	int rate, dummy;
655 
656 	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
657             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
658 	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
659 	{
660 	        /* slave clock */
661 	        return rate;
662 	}
663 	rate = ((rme96->wcreg >> RME96_WCR_BITPOS_FREQ_0) & 1) +
664 		(((rme96->wcreg >> RME96_WCR_BITPOS_FREQ_1) & 1) << 1);
665 	switch (rate) {
666 	case 1:
667 		rate = 32000;
668 		break;
669 	case 2:
670 		rate = 44100;
671 		break;
672 	case 3:
673 		rate = 48000;
674 		break;
675 	default:
676 		return -1;
677 	}
678 	return (rme96->wcreg & RME96_WCR_DS) ? rate << 1 : rate;
679 }
680 
681 static int
682 snd_rme96_playback_setrate(struct rme96 *rme96,
683 			   int rate)
684 {
685 	int ds;
686 
687 	ds = rme96->wcreg & RME96_WCR_DS;
688 	switch (rate) {
689 	case 32000:
690 		rme96->wcreg &= ~RME96_WCR_DS;
691 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) &
692 			~RME96_WCR_FREQ_1;
693 		break;
694 	case 44100:
695 		rme96->wcreg &= ~RME96_WCR_DS;
696 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_1) &
697 			~RME96_WCR_FREQ_0;
698 		break;
699 	case 48000:
700 		rme96->wcreg &= ~RME96_WCR_DS;
701 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) |
702 			RME96_WCR_FREQ_1;
703 		break;
704 	case 64000:
705 		rme96->wcreg |= RME96_WCR_DS;
706 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) &
707 			~RME96_WCR_FREQ_1;
708 		break;
709 	case 88200:
710 		rme96->wcreg |= RME96_WCR_DS;
711 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_1) &
712 			~RME96_WCR_FREQ_0;
713 		break;
714 	case 96000:
715 		rme96->wcreg |= RME96_WCR_DS;
716 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) |
717 			RME96_WCR_FREQ_1;
718 		break;
719 	default:
720 		return -EINVAL;
721 	}
722 	if ((!ds && rme96->wcreg & RME96_WCR_DS) ||
723 	    (ds && !(rme96->wcreg & RME96_WCR_DS)))
724 	{
725 		/* change to/from double-speed: reset the DAC (if available) */
726 		snd_rme96_reset_dac(rme96);
727 	} else {
728 		writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
729 	}
730 	return 0;
731 }
732 
733 static int
734 snd_rme96_capture_analog_setrate(struct rme96 *rme96,
735 				 int rate)
736 {
737 	switch (rate) {
738 	case 32000:
739 		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) &
740 			       ~RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
741 		break;
742 	case 44100:
743 		rme96->areg = ((rme96->areg & ~RME96_AR_FREQPAD_0) |
744 			       RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
745 		break;
746 	case 48000:
747 		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) |
748 			       RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
749 		break;
750 	case 64000:
751 		if (rme96->rev < 4) {
752 			return -EINVAL;
753 		}
754 		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) &
755 			       ~RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
756 		break;
757 	case 88200:
758 		if (rme96->rev < 4) {
759 			return -EINVAL;
760 		}
761 		rme96->areg = ((rme96->areg & ~RME96_AR_FREQPAD_0) |
762 			       RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
763 		break;
764 	case 96000:
765 		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) |
766 			       RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
767 		break;
768 	default:
769 		return -EINVAL;
770 	}
771 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
772 	return 0;
773 }
774 
775 static int
776 snd_rme96_setclockmode(struct rme96 *rme96,
777 		       int mode)
778 {
779 	switch (mode) {
780 	case RME96_CLOCKMODE_SLAVE:
781 	        /* AutoSync */
782 		rme96->wcreg &= ~RME96_WCR_MASTER;
783 		rme96->areg &= ~RME96_AR_WSEL;
784 		break;
785 	case RME96_CLOCKMODE_MASTER:
786 	        /* Internal */
787 		rme96->wcreg |= RME96_WCR_MASTER;
788 		rme96->areg &= ~RME96_AR_WSEL;
789 		break;
790 	case RME96_CLOCKMODE_WORDCLOCK:
791 		/* Word clock is a master mode */
792 		rme96->wcreg |= RME96_WCR_MASTER;
793 		rme96->areg |= RME96_AR_WSEL;
794 		break;
795 	default:
796 		return -EINVAL;
797 	}
798 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
799 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
800 	return 0;
801 }
802 
803 static int
804 snd_rme96_getclockmode(struct rme96 *rme96)
805 {
806 	if (rme96->areg & RME96_AR_WSEL) {
807 		return RME96_CLOCKMODE_WORDCLOCK;
808 	}
809 	return (rme96->wcreg & RME96_WCR_MASTER) ? RME96_CLOCKMODE_MASTER :
810 		RME96_CLOCKMODE_SLAVE;
811 }
812 
813 static int
814 snd_rme96_setinputtype(struct rme96 *rme96,
815 		       int type)
816 {
817 	int n;
818 
819 	switch (type) {
820 	case RME96_INPUT_OPTICAL:
821 		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_INP_0) &
822 			~RME96_WCR_INP_1;
823 		break;
824 	case RME96_INPUT_COAXIAL:
825 		rme96->wcreg = (rme96->wcreg | RME96_WCR_INP_0) &
826 			~RME96_WCR_INP_1;
827 		break;
828 	case RME96_INPUT_INTERNAL:
829 		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_INP_0) |
830 			RME96_WCR_INP_1;
831 		break;
832 	case RME96_INPUT_XLR:
833 		if ((rme96->pci->device != PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST &&
834 		     rme96->pci->device != PCI_DEVICE_ID_RME_DIGI96_8_PRO) ||
835 		    (rme96->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST &&
836 		     rme96->rev > 4))
837 		{
838 			/* Only Digi96/8 PRO and Digi96/8 PAD supports XLR */
839 			return -EINVAL;
840 		}
841 		rme96->wcreg = (rme96->wcreg | RME96_WCR_INP_0) |
842 			RME96_WCR_INP_1;
843 		break;
844 	case RME96_INPUT_ANALOG:
845 		if (!RME96_HAS_ANALOG_IN(rme96)) {
846 			return -EINVAL;
847 		}
848 		rme96->areg |= RME96_AR_ANALOG;
849 		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
850 		if (rme96->rev < 4) {
851 			/*
852 			 * Revision less than 004 does not support 64 and
853 			 * 88.2 kHz
854 			 */
855 			if (snd_rme96_capture_getrate(rme96, &n) == 88200) {
856 				snd_rme96_capture_analog_setrate(rme96, 44100);
857 			}
858 			if (snd_rme96_capture_getrate(rme96, &n) == 64000) {
859 				snd_rme96_capture_analog_setrate(rme96, 32000);
860 			}
861 		}
862 		return 0;
863 	default:
864 		return -EINVAL;
865 	}
866 	if (type != RME96_INPUT_ANALOG && RME96_HAS_ANALOG_IN(rme96)) {
867 		rme96->areg &= ~RME96_AR_ANALOG;
868 		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
869 	}
870 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
871 	return 0;
872 }
873 
874 static int
875 snd_rme96_getinputtype(struct rme96 *rme96)
876 {
877 	if (rme96->areg & RME96_AR_ANALOG) {
878 		return RME96_INPUT_ANALOG;
879 	}
880 	return ((rme96->wcreg >> RME96_WCR_BITPOS_INP_0) & 1) +
881 		(((rme96->wcreg >> RME96_WCR_BITPOS_INP_1) & 1) << 1);
882 }
883 
884 static void
885 snd_rme96_setframelog(struct rme96 *rme96,
886 		      int n_channels,
887 		      int is_playback)
888 {
889 	int frlog;
890 
891 	if (n_channels == 2) {
892 		frlog = 1;
893 	} else {
894 		/* assume 8 channels */
895 		frlog = 3;
896 	}
897 	if (is_playback) {
898 		frlog += (rme96->wcreg & RME96_WCR_MODE24) ? 2 : 1;
899 		rme96->playback_frlog = frlog;
900 	} else {
901 		frlog += (rme96->wcreg & RME96_WCR_MODE24_2) ? 2 : 1;
902 		rme96->capture_frlog = frlog;
903 	}
904 }
905 
906 static int
907 snd_rme96_playback_setformat(struct rme96 *rme96,
908 			     int format)
909 {
910 	switch (format) {
911 	case SNDRV_PCM_FORMAT_S16_LE:
912 		rme96->wcreg &= ~RME96_WCR_MODE24;
913 		break;
914 	case SNDRV_PCM_FORMAT_S32_LE:
915 		rme96->wcreg |= RME96_WCR_MODE24;
916 		break;
917 	default:
918 		return -EINVAL;
919 	}
920 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
921 	return 0;
922 }
923 
924 static int
925 snd_rme96_capture_setformat(struct rme96 *rme96,
926 			    int format)
927 {
928 	switch (format) {
929 	case SNDRV_PCM_FORMAT_S16_LE:
930 		rme96->wcreg &= ~RME96_WCR_MODE24_2;
931 		break;
932 	case SNDRV_PCM_FORMAT_S32_LE:
933 		rme96->wcreg |= RME96_WCR_MODE24_2;
934 		break;
935 	default:
936 		return -EINVAL;
937 	}
938 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
939 	return 0;
940 }
941 
942 static void
943 snd_rme96_set_period_properties(struct rme96 *rme96,
944 				size_t period_bytes)
945 {
946 	switch (period_bytes) {
947 	case RME96_LARGE_BLOCK_SIZE:
948 		rme96->wcreg &= ~RME96_WCR_ISEL;
949 		break;
950 	case RME96_SMALL_BLOCK_SIZE:
951 		rme96->wcreg |= RME96_WCR_ISEL;
952 		break;
953 	default:
954 		snd_BUG();
955 		break;
956 	}
957 	rme96->wcreg &= ~RME96_WCR_IDIS;
958 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
959 }
960 
961 static int
962 snd_rme96_playback_hw_params(struct snd_pcm_substream *substream,
963 			     struct snd_pcm_hw_params *params)
964 {
965 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
966 	struct snd_pcm_runtime *runtime = substream->runtime;
967 	int err, rate, dummy;
968 
969 	runtime->dma_area = (void __force *)(rme96->iobase +
970 					     RME96_IO_PLAY_BUFFER);
971 	runtime->dma_addr = rme96->port + RME96_IO_PLAY_BUFFER;
972 	runtime->dma_bytes = RME96_BUFFER_SIZE;
973 
974 	spin_lock_irq(&rme96->lock);
975 	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
976             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
977 	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
978 	{
979                 /* slave clock */
980                 if ((int)params_rate(params) != rate) {
981 			spin_unlock_irq(&rme96->lock);
982 			return -EIO;
983                 }
984 	} else if ((err = snd_rme96_playback_setrate(rme96, params_rate(params))) < 0) {
985 		spin_unlock_irq(&rme96->lock);
986 		return err;
987 	}
988 	if ((err = snd_rme96_playback_setformat(rme96, params_format(params))) < 0) {
989 		spin_unlock_irq(&rme96->lock);
990 		return err;
991 	}
992 	snd_rme96_setframelog(rme96, params_channels(params), 1);
993 	if (rme96->capture_periodsize != 0) {
994 		if (params_period_size(params) << rme96->playback_frlog !=
995 		    rme96->capture_periodsize)
996 		{
997 			spin_unlock_irq(&rme96->lock);
998 			return -EBUSY;
999 		}
1000 	}
1001 	rme96->playback_periodsize =
1002 		params_period_size(params) << rme96->playback_frlog;
1003 	snd_rme96_set_period_properties(rme96, rme96->playback_periodsize);
1004 	/* S/PDIF setup */
1005 	if ((rme96->wcreg & RME96_WCR_ADAT) == 0) {
1006 		rme96->wcreg &= ~(RME96_WCR_PRO | RME96_WCR_DOLBY | RME96_WCR_EMP);
1007 		writel(rme96->wcreg |= rme96->wcreg_spdif_stream, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1008 	}
1009 	spin_unlock_irq(&rme96->lock);
1010 
1011 	return 0;
1012 }
1013 
1014 static int
1015 snd_rme96_capture_hw_params(struct snd_pcm_substream *substream,
1016 			    struct snd_pcm_hw_params *params)
1017 {
1018 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1019 	struct snd_pcm_runtime *runtime = substream->runtime;
1020 	int err, isadat, rate;
1021 
1022 	runtime->dma_area = (void __force *)(rme96->iobase +
1023 					     RME96_IO_REC_BUFFER);
1024 	runtime->dma_addr = rme96->port + RME96_IO_REC_BUFFER;
1025 	runtime->dma_bytes = RME96_BUFFER_SIZE;
1026 
1027 	spin_lock_irq(&rme96->lock);
1028 	if ((err = snd_rme96_capture_setformat(rme96, params_format(params))) < 0) {
1029 		spin_unlock_irq(&rme96->lock);
1030 		return err;
1031 	}
1032 	if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1033 		if ((err = snd_rme96_capture_analog_setrate(rme96,
1034 							    params_rate(params))) < 0)
1035 		{
1036 			spin_unlock_irq(&rme96->lock);
1037 			return err;
1038 		}
1039 	} else if ((rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0) {
1040                 if ((int)params_rate(params) != rate) {
1041 			spin_unlock_irq(&rme96->lock);
1042 			return -EIO;
1043                 }
1044                 if ((isadat && runtime->hw.channels_min == 2) ||
1045                     (!isadat && runtime->hw.channels_min == 8))
1046                 {
1047 			spin_unlock_irq(&rme96->lock);
1048 			return -EIO;
1049                 }
1050         }
1051 	snd_rme96_setframelog(rme96, params_channels(params), 0);
1052 	if (rme96->playback_periodsize != 0) {
1053 		if (params_period_size(params) << rme96->capture_frlog !=
1054 		    rme96->playback_periodsize)
1055 		{
1056 			spin_unlock_irq(&rme96->lock);
1057 			return -EBUSY;
1058 		}
1059 	}
1060 	rme96->capture_periodsize =
1061 		params_period_size(params) << rme96->capture_frlog;
1062 	snd_rme96_set_period_properties(rme96, rme96->capture_periodsize);
1063 	spin_unlock_irq(&rme96->lock);
1064 
1065 	return 0;
1066 }
1067 
1068 static void
1069 snd_rme96_playback_start(struct rme96 *rme96,
1070 			 int from_pause)
1071 {
1072 	if (!from_pause) {
1073 		writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1074 	}
1075 
1076 	rme96->wcreg |= RME96_WCR_START;
1077 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1078 }
1079 
1080 static void
1081 snd_rme96_capture_start(struct rme96 *rme96,
1082 			int from_pause)
1083 {
1084 	if (!from_pause) {
1085 		writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1086 	}
1087 
1088 	rme96->wcreg |= RME96_WCR_START_2;
1089 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1090 }
1091 
1092 static void
1093 snd_rme96_playback_stop(struct rme96 *rme96)
1094 {
1095 	/*
1096 	 * Check if there is an unconfirmed IRQ, if so confirm it, or else
1097 	 * the hardware will not stop generating interrupts
1098 	 */
1099 	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1100 	if (rme96->rcreg & RME96_RCR_IRQ) {
1101 		writel(0, rme96->iobase + RME96_IO_CONFIRM_PLAY_IRQ);
1102 	}
1103 	rme96->wcreg &= ~RME96_WCR_START;
1104 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1105 }
1106 
1107 static void
1108 snd_rme96_capture_stop(struct rme96 *rme96)
1109 {
1110 	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1111 	if (rme96->rcreg & RME96_RCR_IRQ_2) {
1112 		writel(0, rme96->iobase + RME96_IO_CONFIRM_REC_IRQ);
1113 	}
1114 	rme96->wcreg &= ~RME96_WCR_START_2;
1115 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1116 }
1117 
1118 static irqreturn_t
1119 snd_rme96_interrupt(int irq,
1120 		    void *dev_id,
1121 		    struct pt_regs *regs)
1122 {
1123 	struct rme96 *rme96 = (struct rme96 *)dev_id;
1124 
1125 	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1126 	/* fastpath out, to ease interrupt sharing */
1127 	if (!((rme96->rcreg & RME96_RCR_IRQ) ||
1128 	      (rme96->rcreg & RME96_RCR_IRQ_2)))
1129 	{
1130 		return IRQ_NONE;
1131 	}
1132 
1133 	if (rme96->rcreg & RME96_RCR_IRQ) {
1134 		/* playback */
1135                 snd_pcm_period_elapsed(rme96->playback_substream);
1136 		writel(0, rme96->iobase + RME96_IO_CONFIRM_PLAY_IRQ);
1137 	}
1138 	if (rme96->rcreg & RME96_RCR_IRQ_2) {
1139 		/* capture */
1140 		snd_pcm_period_elapsed(rme96->capture_substream);
1141 		writel(0, rme96->iobase + RME96_IO_CONFIRM_REC_IRQ);
1142 	}
1143 	return IRQ_HANDLED;
1144 }
1145 
1146 static unsigned int period_bytes[] = { RME96_SMALL_BLOCK_SIZE, RME96_LARGE_BLOCK_SIZE };
1147 
1148 static struct snd_pcm_hw_constraint_list hw_constraints_period_bytes = {
1149 	.count = ARRAY_SIZE(period_bytes),
1150 	.list = period_bytes,
1151 	.mask = 0
1152 };
1153 
1154 static int
1155 snd_rme96_playback_spdif_open(struct snd_pcm_substream *substream)
1156 {
1157         int rate, dummy;
1158 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1159 	struct snd_pcm_runtime *runtime = substream->runtime;
1160 
1161 	snd_pcm_set_sync(substream);
1162 
1163 	spin_lock_irq(&rme96->lock);
1164         if (rme96->playback_substream != NULL) {
1165 		spin_unlock_irq(&rme96->lock);
1166                 return -EBUSY;
1167         }
1168 	rme96->wcreg &= ~RME96_WCR_ADAT;
1169 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1170 	rme96->playback_substream = substream;
1171 	spin_unlock_irq(&rme96->lock);
1172 
1173 	runtime->hw = snd_rme96_playback_spdif_info;
1174 	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
1175             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1176 	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
1177 	{
1178                 /* slave clock */
1179                 runtime->hw.rates = snd_rme96_ratecode(rate);
1180                 runtime->hw.rate_min = rate;
1181                 runtime->hw.rate_max = rate;
1182 	}
1183 	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, RME96_BUFFER_SIZE, RME96_BUFFER_SIZE);
1184 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_period_bytes);
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 	snd_pcm_set_sync(substream);
1201 
1202 	runtime->hw = snd_rme96_capture_spdif_info;
1203         if (snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1204             (rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0)
1205         {
1206                 if (isadat) {
1207                         return -EIO;
1208                 }
1209                 runtime->hw.rates = snd_rme96_ratecode(rate);
1210                 runtime->hw.rate_min = rate;
1211                 runtime->hw.rate_max = rate;
1212         }
1213 
1214 	spin_lock_irq(&rme96->lock);
1215         if (rme96->capture_substream != NULL) {
1216 		spin_unlock_irq(&rme96->lock);
1217                 return -EBUSY;
1218         }
1219 	rme96->capture_substream = substream;
1220 	spin_unlock_irq(&rme96->lock);
1221 
1222 	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, RME96_BUFFER_SIZE, RME96_BUFFER_SIZE);
1223 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_period_bytes);
1224 
1225 	return 0;
1226 }
1227 
1228 static int
1229 snd_rme96_playback_adat_open(struct snd_pcm_substream *substream)
1230 {
1231         int rate, dummy;
1232 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1233 	struct snd_pcm_runtime *runtime = substream->runtime;
1234 
1235 	snd_pcm_set_sync(substream);
1236 
1237 	spin_lock_irq(&rme96->lock);
1238         if (rme96->playback_substream != NULL) {
1239 		spin_unlock_irq(&rme96->lock);
1240                 return -EBUSY;
1241         }
1242 	rme96->wcreg |= RME96_WCR_ADAT;
1243 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1244 	rme96->playback_substream = substream;
1245 	spin_unlock_irq(&rme96->lock);
1246 
1247 	runtime->hw = snd_rme96_playback_adat_info;
1248 	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
1249             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1250 	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
1251 	{
1252                 /* slave clock */
1253                 runtime->hw.rates = snd_rme96_ratecode(rate);
1254                 runtime->hw.rate_min = rate;
1255                 runtime->hw.rate_max = rate;
1256 	}
1257 	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, RME96_BUFFER_SIZE, RME96_BUFFER_SIZE);
1258 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_period_bytes);
1259 	return 0;
1260 }
1261 
1262 static int
1263 snd_rme96_capture_adat_open(struct snd_pcm_substream *substream)
1264 {
1265         int isadat, rate;
1266 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1267 	struct snd_pcm_runtime *runtime = substream->runtime;
1268 
1269 	snd_pcm_set_sync(substream);
1270 
1271 	runtime->hw = snd_rme96_capture_adat_info;
1272         if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1273                 /* makes no sense to use analog input. Note that analog
1274                    expension cards AEB4/8-I are RME96_INPUT_INTERNAL */
1275                 return -EIO;
1276         }
1277         if ((rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0) {
1278                 if (!isadat) {
1279                         return -EIO;
1280                 }
1281                 runtime->hw.rates = snd_rme96_ratecode(rate);
1282                 runtime->hw.rate_min = rate;
1283                 runtime->hw.rate_max = rate;
1284         }
1285 
1286 	spin_lock_irq(&rme96->lock);
1287         if (rme96->capture_substream != NULL) {
1288 		spin_unlock_irq(&rme96->lock);
1289                 return -EBUSY;
1290         }
1291 	rme96->capture_substream = substream;
1292 	spin_unlock_irq(&rme96->lock);
1293 
1294 	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, RME96_BUFFER_SIZE, RME96_BUFFER_SIZE);
1295 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_period_bytes);
1296 	return 0;
1297 }
1298 
1299 static int
1300 snd_rme96_playback_close(struct snd_pcm_substream *substream)
1301 {
1302 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1303 	int spdif = 0;
1304 
1305 	spin_lock_irq(&rme96->lock);
1306 	if (RME96_ISPLAYING(rme96)) {
1307 		snd_rme96_playback_stop(rme96);
1308 	}
1309 	rme96->playback_substream = NULL;
1310 	rme96->playback_periodsize = 0;
1311 	spdif = (rme96->wcreg & RME96_WCR_ADAT) == 0;
1312 	spin_unlock_irq(&rme96->lock);
1313 	if (spdif) {
1314 		rme96->spdif_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1315 		snd_ctl_notify(rme96->card, SNDRV_CTL_EVENT_MASK_VALUE |
1316 			       SNDRV_CTL_EVENT_MASK_INFO, &rme96->spdif_ctl->id);
1317 	}
1318 	return 0;
1319 }
1320 
1321 static int
1322 snd_rme96_capture_close(struct snd_pcm_substream *substream)
1323 {
1324 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1325 
1326 	spin_lock_irq(&rme96->lock);
1327 	if (RME96_ISRECORDING(rme96)) {
1328 		snd_rme96_capture_stop(rme96);
1329 	}
1330 	rme96->capture_substream = NULL;
1331 	rme96->capture_periodsize = 0;
1332 	spin_unlock_irq(&rme96->lock);
1333 	return 0;
1334 }
1335 
1336 static int
1337 snd_rme96_playback_prepare(struct snd_pcm_substream *substream)
1338 {
1339 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1340 
1341 	spin_lock_irq(&rme96->lock);
1342 	if (RME96_ISPLAYING(rme96)) {
1343 		snd_rme96_playback_stop(rme96);
1344 	}
1345 	writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1346 	spin_unlock_irq(&rme96->lock);
1347 	return 0;
1348 }
1349 
1350 static int
1351 snd_rme96_capture_prepare(struct snd_pcm_substream *substream)
1352 {
1353 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1354 
1355 	spin_lock_irq(&rme96->lock);
1356 	if (RME96_ISRECORDING(rme96)) {
1357 		snd_rme96_capture_stop(rme96);
1358 	}
1359 	writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1360 	spin_unlock_irq(&rme96->lock);
1361 	return 0;
1362 }
1363 
1364 static int
1365 snd_rme96_playback_trigger(struct snd_pcm_substream *substream,
1366 			   int cmd)
1367 {
1368 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1369 
1370 	switch (cmd) {
1371 	case SNDRV_PCM_TRIGGER_START:
1372 		if (!RME96_ISPLAYING(rme96)) {
1373 			if (substream != rme96->playback_substream) {
1374 				return -EBUSY;
1375 			}
1376 			snd_rme96_playback_start(rme96, 0);
1377 		}
1378 		break;
1379 
1380 	case SNDRV_PCM_TRIGGER_STOP:
1381 		if (RME96_ISPLAYING(rme96)) {
1382 			if (substream != rme96->playback_substream) {
1383 				return -EBUSY;
1384 			}
1385 			snd_rme96_playback_stop(rme96);
1386 		}
1387 		break;
1388 
1389 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1390 		if (RME96_ISPLAYING(rme96)) {
1391 			snd_rme96_playback_stop(rme96);
1392 		}
1393 		break;
1394 
1395 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1396 		if (!RME96_ISPLAYING(rme96)) {
1397 			snd_rme96_playback_start(rme96, 1);
1398 		}
1399 		break;
1400 
1401 	default:
1402 		return -EINVAL;
1403 	}
1404 	return 0;
1405 }
1406 
1407 static int
1408 snd_rme96_capture_trigger(struct snd_pcm_substream *substream,
1409 			  int cmd)
1410 {
1411 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1412 
1413 	switch (cmd) {
1414 	case SNDRV_PCM_TRIGGER_START:
1415 		if (!RME96_ISRECORDING(rme96)) {
1416 			if (substream != rme96->capture_substream) {
1417 				return -EBUSY;
1418 			}
1419 			snd_rme96_capture_start(rme96, 0);
1420 		}
1421 		break;
1422 
1423 	case SNDRV_PCM_TRIGGER_STOP:
1424 		if (RME96_ISRECORDING(rme96)) {
1425 			if (substream != rme96->capture_substream) {
1426 				return -EBUSY;
1427 			}
1428 			snd_rme96_capture_stop(rme96);
1429 		}
1430 		break;
1431 
1432 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1433 		if (RME96_ISRECORDING(rme96)) {
1434 			snd_rme96_capture_stop(rme96);
1435 		}
1436 		break;
1437 
1438 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1439 		if (!RME96_ISRECORDING(rme96)) {
1440 			snd_rme96_capture_start(rme96, 1);
1441 		}
1442 		break;
1443 
1444 	default:
1445 		return -EINVAL;
1446 	}
1447 
1448 	return 0;
1449 }
1450 
1451 static snd_pcm_uframes_t
1452 snd_rme96_playback_pointer(struct snd_pcm_substream *substream)
1453 {
1454 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1455 	return snd_rme96_playback_ptr(rme96);
1456 }
1457 
1458 static snd_pcm_uframes_t
1459 snd_rme96_capture_pointer(struct snd_pcm_substream *substream)
1460 {
1461 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1462 	return snd_rme96_capture_ptr(rme96);
1463 }
1464 
1465 static struct snd_pcm_ops snd_rme96_playback_spdif_ops = {
1466 	.open =		snd_rme96_playback_spdif_open,
1467 	.close =	snd_rme96_playback_close,
1468 	.ioctl =	snd_pcm_lib_ioctl,
1469 	.hw_params =	snd_rme96_playback_hw_params,
1470 	.prepare =	snd_rme96_playback_prepare,
1471 	.trigger =	snd_rme96_playback_trigger,
1472 	.pointer =	snd_rme96_playback_pointer,
1473 	.copy =		snd_rme96_playback_copy,
1474 	.silence =	snd_rme96_playback_silence,
1475 	.mmap =		snd_pcm_lib_mmap_iomem,
1476 };
1477 
1478 static struct snd_pcm_ops snd_rme96_capture_spdif_ops = {
1479 	.open =		snd_rme96_capture_spdif_open,
1480 	.close =	snd_rme96_capture_close,
1481 	.ioctl =	snd_pcm_lib_ioctl,
1482 	.hw_params =	snd_rme96_capture_hw_params,
1483 	.prepare =	snd_rme96_capture_prepare,
1484 	.trigger =	snd_rme96_capture_trigger,
1485 	.pointer =	snd_rme96_capture_pointer,
1486 	.copy =		snd_rme96_capture_copy,
1487 	.mmap =		snd_pcm_lib_mmap_iomem,
1488 };
1489 
1490 static struct snd_pcm_ops snd_rme96_playback_adat_ops = {
1491 	.open =		snd_rme96_playback_adat_open,
1492 	.close =	snd_rme96_playback_close,
1493 	.ioctl =	snd_pcm_lib_ioctl,
1494 	.hw_params =	snd_rme96_playback_hw_params,
1495 	.prepare =	snd_rme96_playback_prepare,
1496 	.trigger =	snd_rme96_playback_trigger,
1497 	.pointer =	snd_rme96_playback_pointer,
1498 	.copy =		snd_rme96_playback_copy,
1499 	.silence =	snd_rme96_playback_silence,
1500 	.mmap =		snd_pcm_lib_mmap_iomem,
1501 };
1502 
1503 static struct snd_pcm_ops snd_rme96_capture_adat_ops = {
1504 	.open =		snd_rme96_capture_adat_open,
1505 	.close =	snd_rme96_capture_close,
1506 	.ioctl =	snd_pcm_lib_ioctl,
1507 	.hw_params =	snd_rme96_capture_hw_params,
1508 	.prepare =	snd_rme96_capture_prepare,
1509 	.trigger =	snd_rme96_capture_trigger,
1510 	.pointer =	snd_rme96_capture_pointer,
1511 	.copy =		snd_rme96_capture_copy,
1512 	.mmap =		snd_pcm_lib_mmap_iomem,
1513 };
1514 
1515 static void
1516 snd_rme96_free(void *private_data)
1517 {
1518 	struct rme96 *rme96 = (struct rme96 *)private_data;
1519 
1520 	if (rme96 == NULL) {
1521 	        return;
1522 	}
1523 	if (rme96->irq >= 0) {
1524 		snd_rme96_playback_stop(rme96);
1525 		snd_rme96_capture_stop(rme96);
1526 		rme96->areg &= ~RME96_AR_DAC_EN;
1527 		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1528 		free_irq(rme96->irq, (void *)rme96);
1529 		rme96->irq = -1;
1530 	}
1531 	if (rme96->iobase) {
1532 		iounmap(rme96->iobase);
1533 		rme96->iobase = NULL;
1534 	}
1535 	if (rme96->port) {
1536 		pci_release_regions(rme96->pci);
1537 		rme96->port = 0;
1538 	}
1539 	pci_disable_device(rme96->pci);
1540 }
1541 
1542 static void
1543 snd_rme96_free_spdif_pcm(struct snd_pcm *pcm)
1544 {
1545 	struct rme96 *rme96 = (struct rme96 *) pcm->private_data;
1546 	rme96->spdif_pcm = NULL;
1547 }
1548 
1549 static void
1550 snd_rme96_free_adat_pcm(struct snd_pcm *pcm)
1551 {
1552 	struct rme96 *rme96 = (struct rme96 *) pcm->private_data;
1553 	rme96->adat_pcm = NULL;
1554 }
1555 
1556 static int __devinit
1557 snd_rme96_create(struct rme96 *rme96)
1558 {
1559 	struct pci_dev *pci = rme96->pci;
1560 	int err;
1561 
1562 	rme96->irq = -1;
1563 	spin_lock_init(&rme96->lock);
1564 
1565 	if ((err = pci_enable_device(pci)) < 0)
1566 		return err;
1567 
1568 	if ((err = pci_request_regions(pci, "RME96")) < 0)
1569 		return err;
1570 	rme96->port = pci_resource_start(rme96->pci, 0);
1571 
1572 	if (request_irq(pci->irq, snd_rme96_interrupt, SA_INTERRUPT|SA_SHIRQ, "RME96", (void *)rme96)) {
1573 		snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1574 		return -EBUSY;
1575 	}
1576 	rme96->irq = pci->irq;
1577 
1578 	if ((rme96->iobase = ioremap_nocache(rme96->port, RME96_IO_SIZE)) == 0) {
1579 		snd_printk(KERN_ERR "unable to remap memory region 0x%lx-0x%lx\n", rme96->port, rme96->port + RME96_IO_SIZE - 1);
1580 		return -ENOMEM;
1581 	}
1582 
1583 	/* read the card's revision number */
1584 	pci_read_config_byte(pci, 8, &rme96->rev);
1585 
1586 	/* set up ALSA pcm device for S/PDIF */
1587 	if ((err = snd_pcm_new(rme96->card, "Digi96 IEC958", 0,
1588 			       1, 1, &rme96->spdif_pcm)) < 0)
1589 	{
1590 		return err;
1591 	}
1592 	rme96->spdif_pcm->private_data = rme96;
1593 	rme96->spdif_pcm->private_free = snd_rme96_free_spdif_pcm;
1594 	strcpy(rme96->spdif_pcm->name, "Digi96 IEC958");
1595 	snd_pcm_set_ops(rme96->spdif_pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_rme96_playback_spdif_ops);
1596 	snd_pcm_set_ops(rme96->spdif_pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_rme96_capture_spdif_ops);
1597 
1598 	rme96->spdif_pcm->info_flags = 0;
1599 
1600 	/* set up ALSA pcm device for ADAT */
1601 	if (pci->device == PCI_DEVICE_ID_RME_DIGI96) {
1602 		/* ADAT is not available on the base model */
1603 		rme96->adat_pcm = NULL;
1604 	} else {
1605 		if ((err = snd_pcm_new(rme96->card, "Digi96 ADAT", 1,
1606 				       1, 1, &rme96->adat_pcm)) < 0)
1607 		{
1608 			return err;
1609 		}
1610 		rme96->adat_pcm->private_data = rme96;
1611 		rme96->adat_pcm->private_free = snd_rme96_free_adat_pcm;
1612 		strcpy(rme96->adat_pcm->name, "Digi96 ADAT");
1613 		snd_pcm_set_ops(rme96->adat_pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_rme96_playback_adat_ops);
1614 		snd_pcm_set_ops(rme96->adat_pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_rme96_capture_adat_ops);
1615 
1616 		rme96->adat_pcm->info_flags = 0;
1617 	}
1618 
1619 	rme96->playback_periodsize = 0;
1620 	rme96->capture_periodsize = 0;
1621 
1622 	/* make sure playback/capture is stopped, if by some reason active */
1623 	snd_rme96_playback_stop(rme96);
1624 	snd_rme96_capture_stop(rme96);
1625 
1626 	/* set default values in registers */
1627 	rme96->wcreg =
1628 		RME96_WCR_FREQ_1 | /* set 44.1 kHz playback */
1629 		RME96_WCR_SEL |    /* normal playback */
1630 		RME96_WCR_MASTER | /* set to master clock mode */
1631 		RME96_WCR_INP_0;   /* set coaxial input */
1632 
1633 	rme96->areg = RME96_AR_FREQPAD_1; /* set 44.1 kHz analog capture */
1634 
1635 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1636 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1637 
1638 	/* reset the ADC */
1639 	writel(rme96->areg | RME96_AR_PD2,
1640 	       rme96->iobase + RME96_IO_ADDITIONAL_REG);
1641 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1642 
1643 	/* reset and enable the DAC (order is important). */
1644 	snd_rme96_reset_dac(rme96);
1645 	rme96->areg |= RME96_AR_DAC_EN;
1646 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1647 
1648 	/* reset playback and record buffer pointers */
1649 	writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1650 	writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1651 
1652 	/* reset volume */
1653 	rme96->vol[0] = rme96->vol[1] = 0;
1654 	if (RME96_HAS_ANALOG_OUT(rme96)) {
1655 		snd_rme96_apply_dac_volume(rme96);
1656 	}
1657 
1658 	/* init switch interface */
1659 	if ((err = snd_rme96_create_switches(rme96->card, rme96)) < 0) {
1660 		return err;
1661 	}
1662 
1663         /* init proc interface */
1664 	snd_rme96_proc_init(rme96);
1665 
1666 	return 0;
1667 }
1668 
1669 /*
1670  * proc interface
1671  */
1672 
1673 static void
1674 snd_rme96_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
1675 {
1676 	int n;
1677 	struct rme96 *rme96 = (struct rme96 *)entry->private_data;
1678 
1679 	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1680 
1681 	snd_iprintf(buffer, rme96->card->longname);
1682 	snd_iprintf(buffer, " (index #%d)\n", rme96->card->number + 1);
1683 
1684 	snd_iprintf(buffer, "\nGeneral settings\n");
1685 	if (rme96->wcreg & RME96_WCR_IDIS) {
1686 		snd_iprintf(buffer, "  period size: N/A (interrupts "
1687 			    "disabled)\n");
1688 	} else if (rme96->wcreg & RME96_WCR_ISEL) {
1689 		snd_iprintf(buffer, "  period size: 2048 bytes\n");
1690 	} else {
1691 		snd_iprintf(buffer, "  period size: 8192 bytes\n");
1692 	}
1693 	snd_iprintf(buffer, "\nInput settings\n");
1694 	switch (snd_rme96_getinputtype(rme96)) {
1695 	case RME96_INPUT_OPTICAL:
1696 		snd_iprintf(buffer, "  input: optical");
1697 		break;
1698 	case RME96_INPUT_COAXIAL:
1699 		snd_iprintf(buffer, "  input: coaxial");
1700 		break;
1701 	case RME96_INPUT_INTERNAL:
1702 		snd_iprintf(buffer, "  input: internal");
1703 		break;
1704 	case RME96_INPUT_XLR:
1705 		snd_iprintf(buffer, "  input: XLR");
1706 		break;
1707 	case RME96_INPUT_ANALOG:
1708 		snd_iprintf(buffer, "  input: analog");
1709 		break;
1710 	}
1711 	if (snd_rme96_capture_getrate(rme96, &n) < 0) {
1712 		snd_iprintf(buffer, "\n  sample rate: no valid signal\n");
1713 	} else {
1714 		if (n) {
1715 			snd_iprintf(buffer, " (8 channels)\n");
1716 		} else {
1717 			snd_iprintf(buffer, " (2 channels)\n");
1718 		}
1719 		snd_iprintf(buffer, "  sample rate: %d Hz\n",
1720 			    snd_rme96_capture_getrate(rme96, &n));
1721 	}
1722 	if (rme96->wcreg & RME96_WCR_MODE24_2) {
1723 		snd_iprintf(buffer, "  sample format: 24 bit\n");
1724 	} else {
1725 		snd_iprintf(buffer, "  sample format: 16 bit\n");
1726 	}
1727 
1728 	snd_iprintf(buffer, "\nOutput settings\n");
1729 	if (rme96->wcreg & RME96_WCR_SEL) {
1730 		snd_iprintf(buffer, "  output signal: normal playback\n");
1731 	} else {
1732 		snd_iprintf(buffer, "  output signal: same as input\n");
1733 	}
1734 	snd_iprintf(buffer, "  sample rate: %d Hz\n",
1735 		    snd_rme96_playback_getrate(rme96));
1736 	if (rme96->wcreg & RME96_WCR_MODE24) {
1737 		snd_iprintf(buffer, "  sample format: 24 bit\n");
1738 	} else {
1739 		snd_iprintf(buffer, "  sample format: 16 bit\n");
1740 	}
1741 	if (rme96->areg & RME96_AR_WSEL) {
1742 		snd_iprintf(buffer, "  sample clock source: word clock\n");
1743 	} else if (rme96->wcreg & RME96_WCR_MASTER) {
1744 		snd_iprintf(buffer, "  sample clock source: internal\n");
1745 	} else if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1746 		snd_iprintf(buffer, "  sample clock source: autosync (internal anyway due to analog input setting)\n");
1747 	} else if (snd_rme96_capture_getrate(rme96, &n) < 0) {
1748 		snd_iprintf(buffer, "  sample clock source: autosync (internal anyway due to no valid signal)\n");
1749 	} else {
1750 		snd_iprintf(buffer, "  sample clock source: autosync\n");
1751 	}
1752 	if (rme96->wcreg & RME96_WCR_PRO) {
1753 		snd_iprintf(buffer, "  format: AES/EBU (professional)\n");
1754 	} else {
1755 		snd_iprintf(buffer, "  format: IEC958 (consumer)\n");
1756 	}
1757 	if (rme96->wcreg & RME96_WCR_EMP) {
1758 		snd_iprintf(buffer, "  emphasis: on\n");
1759 	} else {
1760 		snd_iprintf(buffer, "  emphasis: off\n");
1761 	}
1762 	if (rme96->wcreg & RME96_WCR_DOLBY) {
1763 		snd_iprintf(buffer, "  non-audio (dolby): on\n");
1764 	} else {
1765 		snd_iprintf(buffer, "  non-audio (dolby): off\n");
1766 	}
1767 	if (RME96_HAS_ANALOG_IN(rme96)) {
1768 		snd_iprintf(buffer, "\nAnalog output settings\n");
1769 		switch (snd_rme96_getmontracks(rme96)) {
1770 		case RME96_MONITOR_TRACKS_1_2:
1771 			snd_iprintf(buffer, "  monitored ADAT tracks: 1+2\n");
1772 			break;
1773 		case RME96_MONITOR_TRACKS_3_4:
1774 			snd_iprintf(buffer, "  monitored ADAT tracks: 3+4\n");
1775 			break;
1776 		case RME96_MONITOR_TRACKS_5_6:
1777 			snd_iprintf(buffer, "  monitored ADAT tracks: 5+6\n");
1778 			break;
1779 		case RME96_MONITOR_TRACKS_7_8:
1780 			snd_iprintf(buffer, "  monitored ADAT tracks: 7+8\n");
1781 			break;
1782 		}
1783 		switch (snd_rme96_getattenuation(rme96)) {
1784 		case RME96_ATTENUATION_0:
1785 			snd_iprintf(buffer, "  attenuation: 0 dB\n");
1786 			break;
1787 		case RME96_ATTENUATION_6:
1788 			snd_iprintf(buffer, "  attenuation: -6 dB\n");
1789 			break;
1790 		case RME96_ATTENUATION_12:
1791 			snd_iprintf(buffer, "  attenuation: -12 dB\n");
1792 			break;
1793 		case RME96_ATTENUATION_18:
1794 			snd_iprintf(buffer, "  attenuation: -18 dB\n");
1795 			break;
1796 		}
1797 		snd_iprintf(buffer, "  volume left: %u\n", rme96->vol[0]);
1798 		snd_iprintf(buffer, "  volume right: %u\n", rme96->vol[1]);
1799 	}
1800 }
1801 
1802 static void __devinit
1803 snd_rme96_proc_init(struct rme96 *rme96)
1804 {
1805 	struct snd_info_entry *entry;
1806 
1807 	if (! snd_card_proc_new(rme96->card, "rme96", &entry))
1808 		snd_info_set_text_ops(entry, rme96, 1024, snd_rme96_proc_read);
1809 }
1810 
1811 /*
1812  * control interface
1813  */
1814 
1815 static int
1816 snd_rme96_info_loopback_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1817 {
1818 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1819 	uinfo->count = 1;
1820 	uinfo->value.integer.min = 0;
1821 	uinfo->value.integer.max = 1;
1822 	return 0;
1823 }
1824 static int
1825 snd_rme96_get_loopback_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1826 {
1827 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1828 
1829 	spin_lock_irq(&rme96->lock);
1830 	ucontrol->value.integer.value[0] = rme96->wcreg & RME96_WCR_SEL ? 0 : 1;
1831 	spin_unlock_irq(&rme96->lock);
1832 	return 0;
1833 }
1834 static int
1835 snd_rme96_put_loopback_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1836 {
1837 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1838 	unsigned int val;
1839 	int change;
1840 
1841 	val = ucontrol->value.integer.value[0] ? 0 : RME96_WCR_SEL;
1842 	spin_lock_irq(&rme96->lock);
1843 	val = (rme96->wcreg & ~RME96_WCR_SEL) | val;
1844 	change = val != rme96->wcreg;
1845 	rme96->wcreg = val;
1846 	writel(val, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1847 	spin_unlock_irq(&rme96->lock);
1848 	return change;
1849 }
1850 
1851 static int
1852 snd_rme96_info_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1853 {
1854 	static char *_texts[5] = { "Optical", "Coaxial", "Internal", "XLR", "Analog" };
1855 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1856 	char *texts[5] = { _texts[0], _texts[1], _texts[2], _texts[3], _texts[4] };
1857 
1858 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1859 	uinfo->count = 1;
1860 	switch (rme96->pci->device) {
1861 	case PCI_DEVICE_ID_RME_DIGI96:
1862 	case PCI_DEVICE_ID_RME_DIGI96_8:
1863 		uinfo->value.enumerated.items = 3;
1864 		break;
1865 	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1866 		uinfo->value.enumerated.items = 4;
1867 		break;
1868 	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1869 		if (rme96->rev > 4) {
1870 			/* PST */
1871 			uinfo->value.enumerated.items = 4;
1872 			texts[3] = _texts[4]; /* Analog instead of XLR */
1873 		} else {
1874 			/* PAD */
1875 			uinfo->value.enumerated.items = 5;
1876 		}
1877 		break;
1878 	default:
1879 		snd_BUG();
1880 		break;
1881 	}
1882 	if (uinfo->value.enumerated.item > uinfo->value.enumerated.items - 1) {
1883 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
1884 	}
1885 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1886 	return 0;
1887 }
1888 static int
1889 snd_rme96_get_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1890 {
1891 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1892 	unsigned int items = 3;
1893 
1894 	spin_lock_irq(&rme96->lock);
1895 	ucontrol->value.enumerated.item[0] = snd_rme96_getinputtype(rme96);
1896 
1897 	switch (rme96->pci->device) {
1898 	case PCI_DEVICE_ID_RME_DIGI96:
1899 	case PCI_DEVICE_ID_RME_DIGI96_8:
1900 		items = 3;
1901 		break;
1902 	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1903 		items = 4;
1904 		break;
1905 	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1906 		if (rme96->rev > 4) {
1907 			/* for handling PST case, (INPUT_ANALOG is moved to INPUT_XLR */
1908 			if (ucontrol->value.enumerated.item[0] == RME96_INPUT_ANALOG) {
1909 				ucontrol->value.enumerated.item[0] = RME96_INPUT_XLR;
1910 			}
1911 			items = 4;
1912 		} else {
1913 			items = 5;
1914 		}
1915 		break;
1916 	default:
1917 		snd_BUG();
1918 		break;
1919 	}
1920 	if (ucontrol->value.enumerated.item[0] >= items) {
1921 		ucontrol->value.enumerated.item[0] = items - 1;
1922 	}
1923 
1924 	spin_unlock_irq(&rme96->lock);
1925 	return 0;
1926 }
1927 static int
1928 snd_rme96_put_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1929 {
1930 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1931 	unsigned int val;
1932 	int change, items = 3;
1933 
1934 	switch (rme96->pci->device) {
1935 	case PCI_DEVICE_ID_RME_DIGI96:
1936 	case PCI_DEVICE_ID_RME_DIGI96_8:
1937 		items = 3;
1938 		break;
1939 	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1940 		items = 4;
1941 		break;
1942 	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1943 		if (rme96->rev > 4) {
1944 			items = 4;
1945 		} else {
1946 			items = 5;
1947 		}
1948 		break;
1949 	default:
1950 		snd_BUG();
1951 		break;
1952 	}
1953 	val = ucontrol->value.enumerated.item[0] % items;
1954 
1955 	/* special case for PST */
1956 	if (rme96->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST && rme96->rev > 4) {
1957 		if (val == RME96_INPUT_XLR) {
1958 			val = RME96_INPUT_ANALOG;
1959 		}
1960 	}
1961 
1962 	spin_lock_irq(&rme96->lock);
1963 	change = (int)val != snd_rme96_getinputtype(rme96);
1964 	snd_rme96_setinputtype(rme96, val);
1965 	spin_unlock_irq(&rme96->lock);
1966 	return change;
1967 }
1968 
1969 static int
1970 snd_rme96_info_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1971 {
1972 	static char *texts[3] = { "AutoSync", "Internal", "Word" };
1973 
1974 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1975 	uinfo->count = 1;
1976 	uinfo->value.enumerated.items = 3;
1977 	if (uinfo->value.enumerated.item > 2) {
1978 		uinfo->value.enumerated.item = 2;
1979 	}
1980 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1981 	return 0;
1982 }
1983 static int
1984 snd_rme96_get_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1985 {
1986 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1987 
1988 	spin_lock_irq(&rme96->lock);
1989 	ucontrol->value.enumerated.item[0] = snd_rme96_getclockmode(rme96);
1990 	spin_unlock_irq(&rme96->lock);
1991 	return 0;
1992 }
1993 static int
1994 snd_rme96_put_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1995 {
1996 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1997 	unsigned int val;
1998 	int change;
1999 
2000 	val = ucontrol->value.enumerated.item[0] % 3;
2001 	spin_lock_irq(&rme96->lock);
2002 	change = (int)val != snd_rme96_getclockmode(rme96);
2003 	snd_rme96_setclockmode(rme96, val);
2004 	spin_unlock_irq(&rme96->lock);
2005 	return change;
2006 }
2007 
2008 static int
2009 snd_rme96_info_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2010 {
2011 	static char *texts[4] = { "0 dB", "-6 dB", "-12 dB", "-18 dB" };
2012 
2013 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2014 	uinfo->count = 1;
2015 	uinfo->value.enumerated.items = 4;
2016 	if (uinfo->value.enumerated.item > 3) {
2017 		uinfo->value.enumerated.item = 3;
2018 	}
2019 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2020 	return 0;
2021 }
2022 static int
2023 snd_rme96_get_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2024 {
2025 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2026 
2027 	spin_lock_irq(&rme96->lock);
2028 	ucontrol->value.enumerated.item[0] = snd_rme96_getattenuation(rme96);
2029 	spin_unlock_irq(&rme96->lock);
2030 	return 0;
2031 }
2032 static int
2033 snd_rme96_put_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2034 {
2035 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2036 	unsigned int val;
2037 	int change;
2038 
2039 	val = ucontrol->value.enumerated.item[0] % 4;
2040 	spin_lock_irq(&rme96->lock);
2041 
2042 	change = (int)val != snd_rme96_getattenuation(rme96);
2043 	snd_rme96_setattenuation(rme96, val);
2044 	spin_unlock_irq(&rme96->lock);
2045 	return change;
2046 }
2047 
2048 static int
2049 snd_rme96_info_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2050 {
2051 	static char *texts[4] = { "1+2", "3+4", "5+6", "7+8" };
2052 
2053 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2054 	uinfo->count = 1;
2055 	uinfo->value.enumerated.items = 4;
2056 	if (uinfo->value.enumerated.item > 3) {
2057 		uinfo->value.enumerated.item = 3;
2058 	}
2059 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2060 	return 0;
2061 }
2062 static int
2063 snd_rme96_get_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2064 {
2065 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2066 
2067 	spin_lock_irq(&rme96->lock);
2068 	ucontrol->value.enumerated.item[0] = snd_rme96_getmontracks(rme96);
2069 	spin_unlock_irq(&rme96->lock);
2070 	return 0;
2071 }
2072 static int
2073 snd_rme96_put_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2074 {
2075 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2076 	unsigned int val;
2077 	int change;
2078 
2079 	val = ucontrol->value.enumerated.item[0] % 4;
2080 	spin_lock_irq(&rme96->lock);
2081 	change = (int)val != snd_rme96_getmontracks(rme96);
2082 	snd_rme96_setmontracks(rme96, val);
2083 	spin_unlock_irq(&rme96->lock);
2084 	return change;
2085 }
2086 
2087 static u32 snd_rme96_convert_from_aes(struct snd_aes_iec958 *aes)
2088 {
2089 	u32 val = 0;
2090 	val |= (aes->status[0] & IEC958_AES0_PROFESSIONAL) ? RME96_WCR_PRO : 0;
2091 	val |= (aes->status[0] & IEC958_AES0_NONAUDIO) ? RME96_WCR_DOLBY : 0;
2092 	if (val & RME96_WCR_PRO)
2093 		val |= (aes->status[0] & IEC958_AES0_PRO_EMPHASIS_5015) ? RME96_WCR_EMP : 0;
2094 	else
2095 		val |= (aes->status[0] & IEC958_AES0_CON_EMPHASIS_5015) ? RME96_WCR_EMP : 0;
2096 	return val;
2097 }
2098 
2099 static void snd_rme96_convert_to_aes(struct snd_aes_iec958 *aes, u32 val)
2100 {
2101 	aes->status[0] = ((val & RME96_WCR_PRO) ? IEC958_AES0_PROFESSIONAL : 0) |
2102 			 ((val & RME96_WCR_DOLBY) ? IEC958_AES0_NONAUDIO : 0);
2103 	if (val & RME96_WCR_PRO)
2104 		aes->status[0] |= (val & RME96_WCR_EMP) ? IEC958_AES0_PRO_EMPHASIS_5015 : 0;
2105 	else
2106 		aes->status[0] |= (val & RME96_WCR_EMP) ? IEC958_AES0_CON_EMPHASIS_5015 : 0;
2107 }
2108 
2109 static int snd_rme96_control_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2110 {
2111 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2112 	uinfo->count = 1;
2113 	return 0;
2114 }
2115 
2116 static int snd_rme96_control_spdif_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2117 {
2118 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2119 
2120 	snd_rme96_convert_to_aes(&ucontrol->value.iec958, rme96->wcreg_spdif);
2121 	return 0;
2122 }
2123 
2124 static int snd_rme96_control_spdif_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2125 {
2126 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2127 	int change;
2128 	u32 val;
2129 
2130 	val = snd_rme96_convert_from_aes(&ucontrol->value.iec958);
2131 	spin_lock_irq(&rme96->lock);
2132 	change = val != rme96->wcreg_spdif;
2133 	rme96->wcreg_spdif = val;
2134 	spin_unlock_irq(&rme96->lock);
2135 	return change;
2136 }
2137 
2138 static int snd_rme96_control_spdif_stream_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2139 {
2140 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2141 	uinfo->count = 1;
2142 	return 0;
2143 }
2144 
2145 static int snd_rme96_control_spdif_stream_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2146 {
2147 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2148 
2149 	snd_rme96_convert_to_aes(&ucontrol->value.iec958, rme96->wcreg_spdif_stream);
2150 	return 0;
2151 }
2152 
2153 static int snd_rme96_control_spdif_stream_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2154 {
2155 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2156 	int change;
2157 	u32 val;
2158 
2159 	val = snd_rme96_convert_from_aes(&ucontrol->value.iec958);
2160 	spin_lock_irq(&rme96->lock);
2161 	change = val != rme96->wcreg_spdif_stream;
2162 	rme96->wcreg_spdif_stream = val;
2163 	rme96->wcreg &= ~(RME96_WCR_PRO | RME96_WCR_DOLBY | RME96_WCR_EMP);
2164 	rme96->wcreg |= val;
2165 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
2166 	spin_unlock_irq(&rme96->lock);
2167 	return change;
2168 }
2169 
2170 static int snd_rme96_control_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2171 {
2172 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2173 	uinfo->count = 1;
2174 	return 0;
2175 }
2176 
2177 static int snd_rme96_control_spdif_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2178 {
2179 	ucontrol->value.iec958.status[0] = kcontrol->private_value;
2180 	return 0;
2181 }
2182 
2183 static int
2184 snd_rme96_dac_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2185 {
2186 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2187 
2188         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2189         uinfo->count = 2;
2190         uinfo->value.integer.min = 0;
2191 	uinfo->value.integer.max = RME96_185X_MAX_OUT(rme96);
2192         return 0;
2193 }
2194 
2195 static int
2196 snd_rme96_dac_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *u)
2197 {
2198 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2199 
2200 	spin_lock_irq(&rme96->lock);
2201         u->value.integer.value[0] = rme96->vol[0];
2202         u->value.integer.value[1] = rme96->vol[1];
2203 	spin_unlock_irq(&rme96->lock);
2204 
2205         return 0;
2206 }
2207 
2208 static int
2209 snd_rme96_dac_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *u)
2210 {
2211 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2212         int change = 0;
2213 
2214 	if (!RME96_HAS_ANALOG_OUT(rme96)) {
2215 		return -EINVAL;
2216 	}
2217 	spin_lock_irq(&rme96->lock);
2218         if (u->value.integer.value[0] != rme96->vol[0]) {
2219 		rme96->vol[0] = u->value.integer.value[0];
2220                 change = 1;
2221         }
2222         if (u->value.integer.value[1] != rme96->vol[1]) {
2223 		rme96->vol[1] = u->value.integer.value[1];
2224                 change = 1;
2225         }
2226 	if (change) {
2227 		snd_rme96_apply_dac_volume(rme96);
2228 	}
2229 	spin_unlock_irq(&rme96->lock);
2230 
2231         return change;
2232 }
2233 
2234 static struct snd_kcontrol_new snd_rme96_controls[] = {
2235 {
2236 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2237 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
2238 	.info =		snd_rme96_control_spdif_info,
2239 	.get =		snd_rme96_control_spdif_get,
2240 	.put =		snd_rme96_control_spdif_put
2241 },
2242 {
2243 	.access =	SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
2244 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2245 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
2246 	.info =		snd_rme96_control_spdif_stream_info,
2247 	.get =		snd_rme96_control_spdif_stream_get,
2248 	.put =		snd_rme96_control_spdif_stream_put
2249 },
2250 {
2251 	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
2252 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2253 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
2254 	.info =		snd_rme96_control_spdif_mask_info,
2255 	.get =		snd_rme96_control_spdif_mask_get,
2256 	.private_value = IEC958_AES0_NONAUDIO |
2257 			IEC958_AES0_PROFESSIONAL |
2258 			IEC958_AES0_CON_EMPHASIS
2259 },
2260 {
2261 	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
2262 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2263 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
2264 	.info =		snd_rme96_control_spdif_mask_info,
2265 	.get =		snd_rme96_control_spdif_mask_get,
2266 	.private_value = IEC958_AES0_NONAUDIO |
2267 			IEC958_AES0_PROFESSIONAL |
2268 			IEC958_AES0_PRO_EMPHASIS
2269 },
2270 {
2271         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2272 	.name =         "Input Connector",
2273 	.info =         snd_rme96_info_inputtype_control,
2274 	.get =          snd_rme96_get_inputtype_control,
2275 	.put =          snd_rme96_put_inputtype_control
2276 },
2277 {
2278         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2279 	.name =         "Loopback Input",
2280 	.info =         snd_rme96_info_loopback_control,
2281 	.get =          snd_rme96_get_loopback_control,
2282 	.put =          snd_rme96_put_loopback_control
2283 },
2284 {
2285         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2286 	.name =         "Sample Clock Source",
2287 	.info =         snd_rme96_info_clockmode_control,
2288 	.get =          snd_rme96_get_clockmode_control,
2289 	.put =          snd_rme96_put_clockmode_control
2290 },
2291 {
2292         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2293 	.name =         "Monitor Tracks",
2294 	.info =         snd_rme96_info_montracks_control,
2295 	.get =          snd_rme96_get_montracks_control,
2296 	.put =          snd_rme96_put_montracks_control
2297 },
2298 {
2299         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2300 	.name =         "Attenuation",
2301 	.info =         snd_rme96_info_attenuation_control,
2302 	.get =          snd_rme96_get_attenuation_control,
2303 	.put =          snd_rme96_put_attenuation_control
2304 },
2305 {
2306         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2307 	.name =         "DAC Playback Volume",
2308 	.info =         snd_rme96_dac_volume_info,
2309 	.get =          snd_rme96_dac_volume_get,
2310 	.put =          snd_rme96_dac_volume_put
2311 }
2312 };
2313 
2314 static int
2315 snd_rme96_create_switches(struct snd_card *card,
2316 			  struct rme96 *rme96)
2317 {
2318 	int idx, err;
2319 	struct snd_kcontrol *kctl;
2320 
2321 	for (idx = 0; idx < 7; idx++) {
2322 		if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme96_controls[idx], rme96))) < 0)
2323 			return err;
2324 		if (idx == 1)	/* IEC958 (S/PDIF) Stream */
2325 			rme96->spdif_ctl = kctl;
2326 	}
2327 
2328 	if (RME96_HAS_ANALOG_OUT(rme96)) {
2329 		for (idx = 7; idx < 10; idx++)
2330 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_rme96_controls[idx], rme96))) < 0)
2331 				return err;
2332 	}
2333 
2334 	return 0;
2335 }
2336 
2337 /*
2338  * Card initialisation
2339  */
2340 
2341 static void snd_rme96_card_free(struct snd_card *card)
2342 {
2343 	snd_rme96_free(card->private_data);
2344 }
2345 
2346 static int __devinit
2347 snd_rme96_probe(struct pci_dev *pci,
2348 		const struct pci_device_id *pci_id)
2349 {
2350 	static int dev;
2351 	struct rme96 *rme96;
2352 	struct snd_card *card;
2353 	int err;
2354 	u8 val;
2355 
2356 	if (dev >= SNDRV_CARDS) {
2357 		return -ENODEV;
2358 	}
2359 	if (!enable[dev]) {
2360 		dev++;
2361 		return -ENOENT;
2362 	}
2363 	if ((card = snd_card_new(index[dev], id[dev], THIS_MODULE,
2364 				 sizeof(struct rme96))) == NULL)
2365 		return -ENOMEM;
2366 	card->private_free = snd_rme96_card_free;
2367 	rme96 = (struct rme96 *)card->private_data;
2368 	rme96->card = card;
2369 	rme96->pci = pci;
2370 	snd_card_set_dev(card, &pci->dev);
2371 	if ((err = snd_rme96_create(rme96)) < 0) {
2372 		snd_card_free(card);
2373 		return err;
2374 	}
2375 
2376 	strcpy(card->driver, "Digi96");
2377 	switch (rme96->pci->device) {
2378 	case PCI_DEVICE_ID_RME_DIGI96:
2379 		strcpy(card->shortname, "RME Digi96");
2380 		break;
2381 	case PCI_DEVICE_ID_RME_DIGI96_8:
2382 		strcpy(card->shortname, "RME Digi96/8");
2383 		break;
2384 	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
2385 		strcpy(card->shortname, "RME Digi96/8 PRO");
2386 		break;
2387 	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
2388 		pci_read_config_byte(rme96->pci, 8, &val);
2389 		if (val < 5) {
2390 			strcpy(card->shortname, "RME Digi96/8 PAD");
2391 		} else {
2392 			strcpy(card->shortname, "RME Digi96/8 PST");
2393 		}
2394 		break;
2395 	}
2396 	sprintf(card->longname, "%s at 0x%lx, irq %d", card->shortname,
2397 		rme96->port, rme96->irq);
2398 
2399 	if ((err = snd_card_register(card)) < 0) {
2400 		snd_card_free(card);
2401 		return err;
2402 	}
2403 	pci_set_drvdata(pci, card);
2404 	dev++;
2405 	return 0;
2406 }
2407 
2408 static void __devexit snd_rme96_remove(struct pci_dev *pci)
2409 {
2410 	snd_card_free(pci_get_drvdata(pci));
2411 	pci_set_drvdata(pci, NULL);
2412 }
2413 
2414 static struct pci_driver driver = {
2415 	.name = "RME Digi96",
2416 	.id_table = snd_rme96_ids,
2417 	.probe = snd_rme96_probe,
2418 	.remove = __devexit_p(snd_rme96_remove),
2419 };
2420 
2421 static int __init alsa_card_rme96_init(void)
2422 {
2423 	return pci_register_driver(&driver);
2424 }
2425 
2426 static void __exit alsa_card_rme96_exit(void)
2427 {
2428 	pci_unregister_driver(&driver);
2429 }
2430 
2431 module_init(alsa_card_rme96_init)
2432 module_exit(alsa_card_rme96_exit)
2433