xref: /openbmc/linux/sound/pci/rme96.c (revision a2cce7a9)
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/module.h>
31 #include <linux/vmalloc.h>
32 #include <linux/io.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 /* note, two last pcis should be equal, it is not a bug */
43 
44 MODULE_AUTHOR("Anders Torger <torger@ludd.luth.se>");
45 MODULE_DESCRIPTION("RME Digi96, Digi96/8, Digi96/8 PRO, Digi96/8 PST, "
46 		   "Digi96/8 PAD");
47 MODULE_LICENSE("GPL");
48 MODULE_SUPPORTED_DEVICE("{{RME,Digi96},"
49 		"{RME,Digi96/8},"
50 		"{RME,Digi96/8 PRO},"
51 		"{RME,Digi96/8 PST},"
52 		"{RME,Digi96/8 PAD}}");
53 
54 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
55 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
56 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable this card */
57 
58 module_param_array(index, int, NULL, 0444);
59 MODULE_PARM_DESC(index, "Index value for RME Digi96 soundcard.");
60 module_param_array(id, charp, NULL, 0444);
61 MODULE_PARM_DESC(id, "ID string for RME Digi96 soundcard.");
62 module_param_array(enable, bool, NULL, 0444);
63 MODULE_PARM_DESC(enable, "Enable RME Digi96 soundcard.");
64 
65 /*
66  * Defines for RME Digi96 series, from internal RME reference documents
67  * dated 12.01.00
68  */
69 
70 #define RME96_SPDIF_NCHANNELS 2
71 
72 /* Playback and capture buffer size */
73 #define RME96_BUFFER_SIZE 0x10000
74 
75 /* IO area size */
76 #define RME96_IO_SIZE 0x60000
77 
78 /* IO area offsets */
79 #define RME96_IO_PLAY_BUFFER      0x0
80 #define RME96_IO_REC_BUFFER       0x10000
81 #define RME96_IO_CONTROL_REGISTER 0x20000
82 #define RME96_IO_ADDITIONAL_REG   0x20004
83 #define RME96_IO_CONFIRM_PLAY_IRQ 0x20008
84 #define RME96_IO_CONFIRM_REC_IRQ  0x2000C
85 #define RME96_IO_SET_PLAY_POS     0x40000
86 #define RME96_IO_RESET_PLAY_POS   0x4FFFC
87 #define RME96_IO_SET_REC_POS      0x50000
88 #define RME96_IO_RESET_REC_POS    0x5FFFC
89 #define RME96_IO_GET_PLAY_POS     0x20000
90 #define RME96_IO_GET_REC_POS      0x30000
91 
92 /* Write control register bits */
93 #define RME96_WCR_START     (1 << 0)
94 #define RME96_WCR_START_2   (1 << 1)
95 #define RME96_WCR_GAIN_0    (1 << 2)
96 #define RME96_WCR_GAIN_1    (1 << 3)
97 #define RME96_WCR_MODE24    (1 << 4)
98 #define RME96_WCR_MODE24_2  (1 << 5)
99 #define RME96_WCR_BM        (1 << 6)
100 #define RME96_WCR_BM_2      (1 << 7)
101 #define RME96_WCR_ADAT      (1 << 8)
102 #define RME96_WCR_FREQ_0    (1 << 9)
103 #define RME96_WCR_FREQ_1    (1 << 10)
104 #define RME96_WCR_DS        (1 << 11)
105 #define RME96_WCR_PRO       (1 << 12)
106 #define RME96_WCR_EMP       (1 << 13)
107 #define RME96_WCR_SEL       (1 << 14)
108 #define RME96_WCR_MASTER    (1 << 15)
109 #define RME96_WCR_PD        (1 << 16)
110 #define RME96_WCR_INP_0     (1 << 17)
111 #define RME96_WCR_INP_1     (1 << 18)
112 #define RME96_WCR_THRU_0    (1 << 19)
113 #define RME96_WCR_THRU_1    (1 << 20)
114 #define RME96_WCR_THRU_2    (1 << 21)
115 #define RME96_WCR_THRU_3    (1 << 22)
116 #define RME96_WCR_THRU_4    (1 << 23)
117 #define RME96_WCR_THRU_5    (1 << 24)
118 #define RME96_WCR_THRU_6    (1 << 25)
119 #define RME96_WCR_THRU_7    (1 << 26)
120 #define RME96_WCR_DOLBY     (1 << 27)
121 #define RME96_WCR_MONITOR_0 (1 << 28)
122 #define RME96_WCR_MONITOR_1 (1 << 29)
123 #define RME96_WCR_ISEL      (1 << 30)
124 #define RME96_WCR_IDIS      (1 << 31)
125 
126 #define RME96_WCR_BITPOS_GAIN_0 2
127 #define RME96_WCR_BITPOS_GAIN_1 3
128 #define RME96_WCR_BITPOS_FREQ_0 9
129 #define RME96_WCR_BITPOS_FREQ_1 10
130 #define RME96_WCR_BITPOS_INP_0 17
131 #define RME96_WCR_BITPOS_INP_1 18
132 #define RME96_WCR_BITPOS_MONITOR_0 28
133 #define RME96_WCR_BITPOS_MONITOR_1 29
134 
135 /* Read control register bits */
136 #define RME96_RCR_AUDIO_ADDR_MASK 0xFFFF
137 #define RME96_RCR_IRQ_2     (1 << 16)
138 #define RME96_RCR_T_OUT     (1 << 17)
139 #define RME96_RCR_DEV_ID_0  (1 << 21)
140 #define RME96_RCR_DEV_ID_1  (1 << 22)
141 #define RME96_RCR_LOCK      (1 << 23)
142 #define RME96_RCR_VERF      (1 << 26)
143 #define RME96_RCR_F0        (1 << 27)
144 #define RME96_RCR_F1        (1 << 28)
145 #define RME96_RCR_F2        (1 << 29)
146 #define RME96_RCR_AUTOSYNC  (1 << 30)
147 #define RME96_RCR_IRQ       (1 << 31)
148 
149 #define RME96_RCR_BITPOS_F0 27
150 #define RME96_RCR_BITPOS_F1 28
151 #define RME96_RCR_BITPOS_F2 29
152 
153 /* Additional register bits */
154 #define RME96_AR_WSEL       (1 << 0)
155 #define RME96_AR_ANALOG     (1 << 1)
156 #define RME96_AR_FREQPAD_0  (1 << 2)
157 #define RME96_AR_FREQPAD_1  (1 << 3)
158 #define RME96_AR_FREQPAD_2  (1 << 4)
159 #define RME96_AR_PD2        (1 << 5)
160 #define RME96_AR_DAC_EN     (1 << 6)
161 #define RME96_AR_CLATCH     (1 << 7)
162 #define RME96_AR_CCLK       (1 << 8)
163 #define RME96_AR_CDATA      (1 << 9)
164 
165 #define RME96_AR_BITPOS_F0 2
166 #define RME96_AR_BITPOS_F1 3
167 #define RME96_AR_BITPOS_F2 4
168 
169 /* Monitor tracks */
170 #define RME96_MONITOR_TRACKS_1_2 0
171 #define RME96_MONITOR_TRACKS_3_4 1
172 #define RME96_MONITOR_TRACKS_5_6 2
173 #define RME96_MONITOR_TRACKS_7_8 3
174 
175 /* Attenuation */
176 #define RME96_ATTENUATION_0 0
177 #define RME96_ATTENUATION_6 1
178 #define RME96_ATTENUATION_12 2
179 #define RME96_ATTENUATION_18 3
180 
181 /* Input types */
182 #define RME96_INPUT_OPTICAL 0
183 #define RME96_INPUT_COAXIAL 1
184 #define RME96_INPUT_INTERNAL 2
185 #define RME96_INPUT_XLR 3
186 #define RME96_INPUT_ANALOG 4
187 
188 /* Clock modes */
189 #define RME96_CLOCKMODE_SLAVE 0
190 #define RME96_CLOCKMODE_MASTER 1
191 #define RME96_CLOCKMODE_WORDCLOCK 2
192 
193 /* Block sizes in bytes */
194 #define RME96_SMALL_BLOCK_SIZE 2048
195 #define RME96_LARGE_BLOCK_SIZE 8192
196 
197 /* Volume control */
198 #define RME96_AD1852_VOL_BITS 14
199 #define RME96_AD1855_VOL_BITS 10
200 
201 /* Defines for snd_rme96_trigger */
202 #define RME96_TB_START_PLAYBACK 1
203 #define RME96_TB_START_CAPTURE 2
204 #define RME96_TB_STOP_PLAYBACK 4
205 #define RME96_TB_STOP_CAPTURE 8
206 #define RME96_TB_RESET_PLAYPOS 16
207 #define RME96_TB_RESET_CAPTUREPOS 32
208 #define RME96_TB_CLEAR_PLAYBACK_IRQ 64
209 #define RME96_TB_CLEAR_CAPTURE_IRQ 128
210 #define RME96_RESUME_PLAYBACK	(RME96_TB_START_PLAYBACK)
211 #define RME96_RESUME_CAPTURE	(RME96_TB_START_CAPTURE)
212 #define RME96_RESUME_BOTH	(RME96_RESUME_PLAYBACK \
213 				| RME96_RESUME_CAPTURE)
214 #define RME96_START_PLAYBACK	(RME96_TB_START_PLAYBACK \
215 				| RME96_TB_RESET_PLAYPOS)
216 #define RME96_START_CAPTURE	(RME96_TB_START_CAPTURE \
217 				| RME96_TB_RESET_CAPTUREPOS)
218 #define RME96_START_BOTH	(RME96_START_PLAYBACK \
219 				| RME96_START_CAPTURE)
220 #define RME96_STOP_PLAYBACK	(RME96_TB_STOP_PLAYBACK \
221 				| RME96_TB_CLEAR_PLAYBACK_IRQ)
222 #define RME96_STOP_CAPTURE	(RME96_TB_STOP_CAPTURE \
223 				| RME96_TB_CLEAR_CAPTURE_IRQ)
224 #define RME96_STOP_BOTH		(RME96_STOP_PLAYBACK \
225 				| RME96_STOP_CAPTURE)
226 
227 struct rme96 {
228 	spinlock_t    lock;
229 	int irq;
230 	unsigned long port;
231 	void __iomem *iobase;
232 
233 	u32 wcreg;    /* cached write control register value */
234 	u32 wcreg_spdif;		/* S/PDIF setup */
235 	u32 wcreg_spdif_stream;		/* S/PDIF setup (temporary) */
236 	u32 rcreg;    /* cached read control register value */
237 	u32 areg;     /* cached additional register value */
238 	u16 vol[2]; /* cached volume of analog output */
239 
240 	u8 rev; /* card revision number */
241 
242 #ifdef CONFIG_PM_SLEEP
243 	u32 playback_pointer;
244 	u32 capture_pointer;
245 	void *playback_suspend_buffer;
246 	void *capture_suspend_buffer;
247 #endif
248 
249 	struct snd_pcm_substream *playback_substream;
250 	struct snd_pcm_substream *capture_substream;
251 
252 	int playback_frlog; /* log2 of framesize */
253 	int capture_frlog;
254 
255         size_t playback_periodsize; /* in bytes, zero if not used */
256 	size_t capture_periodsize; /* in bytes, zero if not used */
257 
258 	struct snd_card *card;
259 	struct snd_pcm *spdif_pcm;
260 	struct snd_pcm *adat_pcm;
261 	struct pci_dev     *pci;
262 	struct snd_kcontrol   *spdif_ctl;
263 };
264 
265 static const struct pci_device_id snd_rme96_ids[] = {
266 	{ PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96), 0, },
267 	{ PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96_8), 0, },
268 	{ PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96_8_PRO), 0, },
269 	{ PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST), 0, },
270 	{ 0, }
271 };
272 
273 MODULE_DEVICE_TABLE(pci, snd_rme96_ids);
274 
275 #define RME96_ISPLAYING(rme96) ((rme96)->wcreg & RME96_WCR_START)
276 #define RME96_ISRECORDING(rme96) ((rme96)->wcreg & RME96_WCR_START_2)
277 #define	RME96_HAS_ANALOG_IN(rme96) ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST)
278 #define	RME96_HAS_ANALOG_OUT(rme96) ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PRO || \
279 				     (rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST)
280 #define	RME96_DAC_IS_1852(rme96) (RME96_HAS_ANALOG_OUT(rme96) && (rme96)->rev >= 4)
281 #define	RME96_DAC_IS_1855(rme96) (((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST && (rme96)->rev < 4) || \
282 			          ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PRO && (rme96)->rev == 2))
283 #define	RME96_185X_MAX_OUT(rme96) ((1 << (RME96_DAC_IS_1852(rme96) ? RME96_AD1852_VOL_BITS : RME96_AD1855_VOL_BITS)) - 1)
284 
285 static int
286 snd_rme96_playback_prepare(struct snd_pcm_substream *substream);
287 
288 static int
289 snd_rme96_capture_prepare(struct snd_pcm_substream *substream);
290 
291 static int
292 snd_rme96_playback_trigger(struct snd_pcm_substream *substream,
293 			   int cmd);
294 
295 static int
296 snd_rme96_capture_trigger(struct snd_pcm_substream *substream,
297 			  int cmd);
298 
299 static snd_pcm_uframes_t
300 snd_rme96_playback_pointer(struct snd_pcm_substream *substream);
301 
302 static snd_pcm_uframes_t
303 snd_rme96_capture_pointer(struct snd_pcm_substream *substream);
304 
305 static void snd_rme96_proc_init(struct rme96 *rme96);
306 
307 static int
308 snd_rme96_create_switches(struct snd_card *card,
309 			  struct rme96 *rme96);
310 
311 static int
312 snd_rme96_getinputtype(struct rme96 *rme96);
313 
314 static inline unsigned int
315 snd_rme96_playback_ptr(struct rme96 *rme96)
316 {
317 	return (readl(rme96->iobase + RME96_IO_GET_PLAY_POS)
318 		& RME96_RCR_AUDIO_ADDR_MASK) >> rme96->playback_frlog;
319 }
320 
321 static inline unsigned int
322 snd_rme96_capture_ptr(struct rme96 *rme96)
323 {
324 	return (readl(rme96->iobase + RME96_IO_GET_REC_POS)
325 		& RME96_RCR_AUDIO_ADDR_MASK) >> rme96->capture_frlog;
326 }
327 
328 static int
329 snd_rme96_playback_silence(struct snd_pcm_substream *substream,
330 			   int channel, /* not used (interleaved data) */
331 			   snd_pcm_uframes_t pos,
332 			   snd_pcm_uframes_t count)
333 {
334 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
335 	count <<= rme96->playback_frlog;
336 	pos <<= rme96->playback_frlog;
337 	memset_io(rme96->iobase + RME96_IO_PLAY_BUFFER + pos,
338 		  0, count);
339 	return 0;
340 }
341 
342 static int
343 snd_rme96_playback_copy(struct snd_pcm_substream *substream,
344 			int channel, /* not used (interleaved data) */
345 			snd_pcm_uframes_t pos,
346 			void __user *src,
347 			snd_pcm_uframes_t count)
348 {
349 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
350 	count <<= rme96->playback_frlog;
351 	pos <<= rme96->playback_frlog;
352 	return copy_from_user_toio(rme96->iobase + RME96_IO_PLAY_BUFFER + pos, src,
353 				   count);
354 }
355 
356 static int
357 snd_rme96_capture_copy(struct snd_pcm_substream *substream,
358 		       int channel, /* not used (interleaved data) */
359 		       snd_pcm_uframes_t pos,
360 		       void __user *dst,
361 		       snd_pcm_uframes_t count)
362 {
363 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
364 	count <<= rme96->capture_frlog;
365 	pos <<= rme96->capture_frlog;
366 	return copy_to_user_fromio(dst, rme96->iobase + RME96_IO_REC_BUFFER + pos,
367 				   count);
368 }
369 
370 /*
371  * Digital output capabilities (S/PDIF)
372  */
373 static struct snd_pcm_hardware snd_rme96_playback_spdif_info =
374 {
375 	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
376 			      SNDRV_PCM_INFO_MMAP_VALID |
377 			      SNDRV_PCM_INFO_SYNC_START |
378 			      SNDRV_PCM_INFO_RESUME |
379 			      SNDRV_PCM_INFO_INTERLEAVED |
380 			      SNDRV_PCM_INFO_PAUSE),
381 	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
382 			      SNDRV_PCM_FMTBIT_S32_LE),
383 	.rates =	     (SNDRV_PCM_RATE_32000 |
384 			      SNDRV_PCM_RATE_44100 |
385 			      SNDRV_PCM_RATE_48000 |
386 			      SNDRV_PCM_RATE_64000 |
387 			      SNDRV_PCM_RATE_88200 |
388 			      SNDRV_PCM_RATE_96000),
389 	.rate_min =	     32000,
390 	.rate_max =	     96000,
391 	.channels_min =	     2,
392 	.channels_max =	     2,
393 	.buffer_bytes_max =  RME96_BUFFER_SIZE,
394 	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
395 	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
396 	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
397 	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
398 	.fifo_size =	     0,
399 };
400 
401 /*
402  * Digital input capabilities (S/PDIF)
403  */
404 static struct snd_pcm_hardware snd_rme96_capture_spdif_info =
405 {
406 	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
407 			      SNDRV_PCM_INFO_MMAP_VALID |
408 			      SNDRV_PCM_INFO_SYNC_START |
409 			      SNDRV_PCM_INFO_RESUME |
410 			      SNDRV_PCM_INFO_INTERLEAVED |
411 			      SNDRV_PCM_INFO_PAUSE),
412 	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
413 			      SNDRV_PCM_FMTBIT_S32_LE),
414 	.rates =	     (SNDRV_PCM_RATE_32000 |
415 			      SNDRV_PCM_RATE_44100 |
416 			      SNDRV_PCM_RATE_48000 |
417 			      SNDRV_PCM_RATE_64000 |
418 			      SNDRV_PCM_RATE_88200 |
419 			      SNDRV_PCM_RATE_96000),
420 	.rate_min =	     32000,
421 	.rate_max =	     96000,
422 	.channels_min =	     2,
423 	.channels_max =	     2,
424 	.buffer_bytes_max =  RME96_BUFFER_SIZE,
425 	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
426 	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
427 	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
428 	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
429 	.fifo_size =	     0,
430 };
431 
432 /*
433  * Digital output capabilities (ADAT)
434  */
435 static struct snd_pcm_hardware snd_rme96_playback_adat_info =
436 {
437 	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
438 			      SNDRV_PCM_INFO_MMAP_VALID |
439 			      SNDRV_PCM_INFO_SYNC_START |
440 			      SNDRV_PCM_INFO_RESUME |
441 			      SNDRV_PCM_INFO_INTERLEAVED |
442 			      SNDRV_PCM_INFO_PAUSE),
443 	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
444 			      SNDRV_PCM_FMTBIT_S32_LE),
445 	.rates =             (SNDRV_PCM_RATE_44100 |
446 			      SNDRV_PCM_RATE_48000),
447 	.rate_min =          44100,
448 	.rate_max =          48000,
449 	.channels_min =      8,
450 	.channels_max =	     8,
451 	.buffer_bytes_max =  RME96_BUFFER_SIZE,
452 	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
453 	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
454 	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
455 	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
456 	.fifo_size =	     0,
457 };
458 
459 /*
460  * Digital input capabilities (ADAT)
461  */
462 static struct snd_pcm_hardware snd_rme96_capture_adat_info =
463 {
464 	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
465 			      SNDRV_PCM_INFO_MMAP_VALID |
466 			      SNDRV_PCM_INFO_SYNC_START |
467 			      SNDRV_PCM_INFO_RESUME |
468 			      SNDRV_PCM_INFO_INTERLEAVED |
469 			      SNDRV_PCM_INFO_PAUSE),
470 	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
471 			      SNDRV_PCM_FMTBIT_S32_LE),
472 	.rates =	     (SNDRV_PCM_RATE_44100 |
473 			      SNDRV_PCM_RATE_48000),
474 	.rate_min =          44100,
475 	.rate_max =          48000,
476 	.channels_min =      8,
477 	.channels_max =	     8,
478 	.buffer_bytes_max =  RME96_BUFFER_SIZE,
479 	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
480 	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
481 	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
482 	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
483 	.fifo_size =         0,
484 };
485 
486 /*
487  * The CDATA, CCLK and CLATCH bits can be used to write to the SPI interface
488  * of the AD1852 or AD1852 D/A converter on the board.  CDATA must be set up
489  * on the falling edge of CCLK and be stable on the rising edge.  The rising
490  * edge of CLATCH after the last data bit clocks in the whole data word.
491  * A fast processor could probably drive the SPI interface faster than the
492  * DAC can handle (3MHz for the 1855, unknown for the 1852).  The udelay(1)
493  * limits the data rate to 500KHz and only causes a delay of 33 microsecs.
494  *
495  * NOTE: increased delay from 1 to 10, since there where problems setting
496  * the volume.
497  */
498 static void
499 snd_rme96_write_SPI(struct rme96 *rme96, u16 val)
500 {
501 	int i;
502 
503 	for (i = 0; i < 16; i++) {
504 		if (val & 0x8000) {
505 			rme96->areg |= RME96_AR_CDATA;
506 		} else {
507 			rme96->areg &= ~RME96_AR_CDATA;
508 		}
509 		rme96->areg &= ~(RME96_AR_CCLK | RME96_AR_CLATCH);
510 		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
511 		udelay(10);
512 		rme96->areg |= RME96_AR_CCLK;
513 		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
514 		udelay(10);
515 		val <<= 1;
516 	}
517 	rme96->areg &= ~(RME96_AR_CCLK | RME96_AR_CDATA);
518 	rme96->areg |= RME96_AR_CLATCH;
519 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
520 	udelay(10);
521 	rme96->areg &= ~RME96_AR_CLATCH;
522 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
523 }
524 
525 static void
526 snd_rme96_apply_dac_volume(struct rme96 *rme96)
527 {
528 	if (RME96_DAC_IS_1852(rme96)) {
529 		snd_rme96_write_SPI(rme96, (rme96->vol[0] << 2) | 0x0);
530 		snd_rme96_write_SPI(rme96, (rme96->vol[1] << 2) | 0x2);
531 	} else if (RME96_DAC_IS_1855(rme96)) {
532 		snd_rme96_write_SPI(rme96, (rme96->vol[0] & 0x3FF) | 0x000);
533 		snd_rme96_write_SPI(rme96, (rme96->vol[1] & 0x3FF) | 0x400);
534 	}
535 }
536 
537 static void
538 snd_rme96_reset_dac(struct rme96 *rme96)
539 {
540 	writel(rme96->wcreg | RME96_WCR_PD,
541 	       rme96->iobase + RME96_IO_CONTROL_REGISTER);
542 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
543 }
544 
545 static int
546 snd_rme96_getmontracks(struct rme96 *rme96)
547 {
548 	return ((rme96->wcreg >> RME96_WCR_BITPOS_MONITOR_0) & 1) +
549 		(((rme96->wcreg >> RME96_WCR_BITPOS_MONITOR_1) & 1) << 1);
550 }
551 
552 static int
553 snd_rme96_setmontracks(struct rme96 *rme96,
554 		       int montracks)
555 {
556 	if (montracks & 1) {
557 		rme96->wcreg |= RME96_WCR_MONITOR_0;
558 	} else {
559 		rme96->wcreg &= ~RME96_WCR_MONITOR_0;
560 	}
561 	if (montracks & 2) {
562 		rme96->wcreg |= RME96_WCR_MONITOR_1;
563 	} else {
564 		rme96->wcreg &= ~RME96_WCR_MONITOR_1;
565 	}
566 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
567 	return 0;
568 }
569 
570 static int
571 snd_rme96_getattenuation(struct rme96 *rme96)
572 {
573 	return ((rme96->wcreg >> RME96_WCR_BITPOS_GAIN_0) & 1) +
574 		(((rme96->wcreg >> RME96_WCR_BITPOS_GAIN_1) & 1) << 1);
575 }
576 
577 static int
578 snd_rme96_setattenuation(struct rme96 *rme96,
579 			 int attenuation)
580 {
581 	switch (attenuation) {
582 	case 0:
583 		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_GAIN_0) &
584 			~RME96_WCR_GAIN_1;
585 		break;
586 	case 1:
587 		rme96->wcreg = (rme96->wcreg | RME96_WCR_GAIN_0) &
588 			~RME96_WCR_GAIN_1;
589 		break;
590 	case 2:
591 		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_GAIN_0) |
592 			RME96_WCR_GAIN_1;
593 		break;
594 	case 3:
595 		rme96->wcreg = (rme96->wcreg | RME96_WCR_GAIN_0) |
596 			RME96_WCR_GAIN_1;
597 		break;
598 	default:
599 		return -EINVAL;
600 	}
601 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
602 	return 0;
603 }
604 
605 static int
606 snd_rme96_capture_getrate(struct rme96 *rme96,
607 			  int *is_adat)
608 {
609 	int n, rate;
610 
611 	*is_adat = 0;
612 	if (rme96->areg & RME96_AR_ANALOG) {
613 		/* Analog input, overrides S/PDIF setting */
614 		n = ((rme96->areg >> RME96_AR_BITPOS_F0) & 1) +
615 			(((rme96->areg >> RME96_AR_BITPOS_F1) & 1) << 1);
616 		switch (n) {
617 		case 1:
618 			rate = 32000;
619 			break;
620 		case 2:
621 			rate = 44100;
622 			break;
623 		case 3:
624 			rate = 48000;
625 			break;
626 		default:
627 			return -1;
628 		}
629 		return (rme96->areg & RME96_AR_BITPOS_F2) ? rate << 1 : rate;
630 	}
631 
632 	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
633 	if (rme96->rcreg & RME96_RCR_LOCK) {
634 		/* ADAT rate */
635 		*is_adat = 1;
636 		if (rme96->rcreg & RME96_RCR_T_OUT) {
637 			return 48000;
638 		}
639 		return 44100;
640 	}
641 
642 	if (rme96->rcreg & RME96_RCR_VERF) {
643 		return -1;
644 	}
645 
646 	/* S/PDIF rate */
647 	n = ((rme96->rcreg >> RME96_RCR_BITPOS_F0) & 1) +
648 		(((rme96->rcreg >> RME96_RCR_BITPOS_F1) & 1) << 1) +
649 		(((rme96->rcreg >> RME96_RCR_BITPOS_F2) & 1) << 2);
650 
651 	switch (n) {
652 	case 0:
653 		if (rme96->rcreg & RME96_RCR_T_OUT) {
654 			return 64000;
655 		}
656 		return -1;
657 	case 3: return 96000;
658 	case 4: return 88200;
659 	case 5: return 48000;
660 	case 6: return 44100;
661 	case 7: return 32000;
662 	default:
663 		break;
664 	}
665 	return -1;
666 }
667 
668 static int
669 snd_rme96_playback_getrate(struct rme96 *rme96)
670 {
671 	int rate, dummy;
672 
673 	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
674             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
675 	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
676 	{
677 	        /* slave clock */
678 	        return rate;
679 	}
680 	rate = ((rme96->wcreg >> RME96_WCR_BITPOS_FREQ_0) & 1) +
681 		(((rme96->wcreg >> RME96_WCR_BITPOS_FREQ_1) & 1) << 1);
682 	switch (rate) {
683 	case 1:
684 		rate = 32000;
685 		break;
686 	case 2:
687 		rate = 44100;
688 		break;
689 	case 3:
690 		rate = 48000;
691 		break;
692 	default:
693 		return -1;
694 	}
695 	return (rme96->wcreg & RME96_WCR_DS) ? rate << 1 : rate;
696 }
697 
698 static int
699 snd_rme96_playback_setrate(struct rme96 *rme96,
700 			   int rate)
701 {
702 	int ds;
703 
704 	ds = rme96->wcreg & RME96_WCR_DS;
705 	switch (rate) {
706 	case 32000:
707 		rme96->wcreg &= ~RME96_WCR_DS;
708 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) &
709 			~RME96_WCR_FREQ_1;
710 		break;
711 	case 44100:
712 		rme96->wcreg &= ~RME96_WCR_DS;
713 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_1) &
714 			~RME96_WCR_FREQ_0;
715 		break;
716 	case 48000:
717 		rme96->wcreg &= ~RME96_WCR_DS;
718 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) |
719 			RME96_WCR_FREQ_1;
720 		break;
721 	case 64000:
722 		rme96->wcreg |= RME96_WCR_DS;
723 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) &
724 			~RME96_WCR_FREQ_1;
725 		break;
726 	case 88200:
727 		rme96->wcreg |= RME96_WCR_DS;
728 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_1) &
729 			~RME96_WCR_FREQ_0;
730 		break;
731 	case 96000:
732 		rme96->wcreg |= RME96_WCR_DS;
733 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) |
734 			RME96_WCR_FREQ_1;
735 		break;
736 	default:
737 		return -EINVAL;
738 	}
739 	if ((!ds && rme96->wcreg & RME96_WCR_DS) ||
740 	    (ds && !(rme96->wcreg & RME96_WCR_DS)))
741 	{
742 		/* change to/from double-speed: reset the DAC (if available) */
743 		snd_rme96_reset_dac(rme96);
744 	} else {
745 		writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
746 	}
747 	return 0;
748 }
749 
750 static int
751 snd_rme96_capture_analog_setrate(struct rme96 *rme96,
752 				 int rate)
753 {
754 	switch (rate) {
755 	case 32000:
756 		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) &
757 			       ~RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
758 		break;
759 	case 44100:
760 		rme96->areg = ((rme96->areg & ~RME96_AR_FREQPAD_0) |
761 			       RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
762 		break;
763 	case 48000:
764 		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) |
765 			       RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
766 		break;
767 	case 64000:
768 		if (rme96->rev < 4) {
769 			return -EINVAL;
770 		}
771 		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) &
772 			       ~RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
773 		break;
774 	case 88200:
775 		if (rme96->rev < 4) {
776 			return -EINVAL;
777 		}
778 		rme96->areg = ((rme96->areg & ~RME96_AR_FREQPAD_0) |
779 			       RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
780 		break;
781 	case 96000:
782 		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) |
783 			       RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
784 		break;
785 	default:
786 		return -EINVAL;
787 	}
788 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
789 	return 0;
790 }
791 
792 static int
793 snd_rme96_setclockmode(struct rme96 *rme96,
794 		       int mode)
795 {
796 	switch (mode) {
797 	case RME96_CLOCKMODE_SLAVE:
798 	        /* AutoSync */
799 		rme96->wcreg &= ~RME96_WCR_MASTER;
800 		rme96->areg &= ~RME96_AR_WSEL;
801 		break;
802 	case RME96_CLOCKMODE_MASTER:
803 	        /* Internal */
804 		rme96->wcreg |= RME96_WCR_MASTER;
805 		rme96->areg &= ~RME96_AR_WSEL;
806 		break;
807 	case RME96_CLOCKMODE_WORDCLOCK:
808 		/* Word clock is a master mode */
809 		rme96->wcreg |= RME96_WCR_MASTER;
810 		rme96->areg |= RME96_AR_WSEL;
811 		break;
812 	default:
813 		return -EINVAL;
814 	}
815 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
816 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
817 	return 0;
818 }
819 
820 static int
821 snd_rme96_getclockmode(struct rme96 *rme96)
822 {
823 	if (rme96->areg & RME96_AR_WSEL) {
824 		return RME96_CLOCKMODE_WORDCLOCK;
825 	}
826 	return (rme96->wcreg & RME96_WCR_MASTER) ? RME96_CLOCKMODE_MASTER :
827 		RME96_CLOCKMODE_SLAVE;
828 }
829 
830 static int
831 snd_rme96_setinputtype(struct rme96 *rme96,
832 		       int type)
833 {
834 	int n;
835 
836 	switch (type) {
837 	case RME96_INPUT_OPTICAL:
838 		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_INP_0) &
839 			~RME96_WCR_INP_1;
840 		break;
841 	case RME96_INPUT_COAXIAL:
842 		rme96->wcreg = (rme96->wcreg | RME96_WCR_INP_0) &
843 			~RME96_WCR_INP_1;
844 		break;
845 	case RME96_INPUT_INTERNAL:
846 		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_INP_0) |
847 			RME96_WCR_INP_1;
848 		break;
849 	case RME96_INPUT_XLR:
850 		if ((rme96->pci->device != PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST &&
851 		     rme96->pci->device != PCI_DEVICE_ID_RME_DIGI96_8_PRO) ||
852 		    (rme96->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST &&
853 		     rme96->rev > 4))
854 		{
855 			/* Only Digi96/8 PRO and Digi96/8 PAD supports XLR */
856 			return -EINVAL;
857 		}
858 		rme96->wcreg = (rme96->wcreg | RME96_WCR_INP_0) |
859 			RME96_WCR_INP_1;
860 		break;
861 	case RME96_INPUT_ANALOG:
862 		if (!RME96_HAS_ANALOG_IN(rme96)) {
863 			return -EINVAL;
864 		}
865 		rme96->areg |= RME96_AR_ANALOG;
866 		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
867 		if (rme96->rev < 4) {
868 			/*
869 			 * Revision less than 004 does not support 64 and
870 			 * 88.2 kHz
871 			 */
872 			if (snd_rme96_capture_getrate(rme96, &n) == 88200) {
873 				snd_rme96_capture_analog_setrate(rme96, 44100);
874 			}
875 			if (snd_rme96_capture_getrate(rme96, &n) == 64000) {
876 				snd_rme96_capture_analog_setrate(rme96, 32000);
877 			}
878 		}
879 		return 0;
880 	default:
881 		return -EINVAL;
882 	}
883 	if (type != RME96_INPUT_ANALOG && RME96_HAS_ANALOG_IN(rme96)) {
884 		rme96->areg &= ~RME96_AR_ANALOG;
885 		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
886 	}
887 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
888 	return 0;
889 }
890 
891 static int
892 snd_rme96_getinputtype(struct rme96 *rme96)
893 {
894 	if (rme96->areg & RME96_AR_ANALOG) {
895 		return RME96_INPUT_ANALOG;
896 	}
897 	return ((rme96->wcreg >> RME96_WCR_BITPOS_INP_0) & 1) +
898 		(((rme96->wcreg >> RME96_WCR_BITPOS_INP_1) & 1) << 1);
899 }
900 
901 static void
902 snd_rme96_setframelog(struct rme96 *rme96,
903 		      int n_channels,
904 		      int is_playback)
905 {
906 	int frlog;
907 
908 	if (n_channels == 2) {
909 		frlog = 1;
910 	} else {
911 		/* assume 8 channels */
912 		frlog = 3;
913 	}
914 	if (is_playback) {
915 		frlog += (rme96->wcreg & RME96_WCR_MODE24) ? 2 : 1;
916 		rme96->playback_frlog = frlog;
917 	} else {
918 		frlog += (rme96->wcreg & RME96_WCR_MODE24_2) ? 2 : 1;
919 		rme96->capture_frlog = frlog;
920 	}
921 }
922 
923 static int
924 snd_rme96_playback_setformat(struct rme96 *rme96, snd_pcm_format_t format)
925 {
926 	switch (format) {
927 	case SNDRV_PCM_FORMAT_S16_LE:
928 		rme96->wcreg &= ~RME96_WCR_MODE24;
929 		break;
930 	case SNDRV_PCM_FORMAT_S32_LE:
931 		rme96->wcreg |= RME96_WCR_MODE24;
932 		break;
933 	default:
934 		return -EINVAL;
935 	}
936 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
937 	return 0;
938 }
939 
940 static int
941 snd_rme96_capture_setformat(struct rme96 *rme96, snd_pcm_format_t format)
942 {
943 	switch (format) {
944 	case SNDRV_PCM_FORMAT_S16_LE:
945 		rme96->wcreg &= ~RME96_WCR_MODE24_2;
946 		break;
947 	case SNDRV_PCM_FORMAT_S32_LE:
948 		rme96->wcreg |= RME96_WCR_MODE24_2;
949 		break;
950 	default:
951 		return -EINVAL;
952 	}
953 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
954 	return 0;
955 }
956 
957 static void
958 snd_rme96_set_period_properties(struct rme96 *rme96,
959 				size_t period_bytes)
960 {
961 	switch (period_bytes) {
962 	case RME96_LARGE_BLOCK_SIZE:
963 		rme96->wcreg &= ~RME96_WCR_ISEL;
964 		break;
965 	case RME96_SMALL_BLOCK_SIZE:
966 		rme96->wcreg |= RME96_WCR_ISEL;
967 		break;
968 	default:
969 		snd_BUG();
970 		break;
971 	}
972 	rme96->wcreg &= ~RME96_WCR_IDIS;
973 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
974 }
975 
976 static int
977 snd_rme96_playback_hw_params(struct snd_pcm_substream *substream,
978 			     struct snd_pcm_hw_params *params)
979 {
980 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
981 	struct snd_pcm_runtime *runtime = substream->runtime;
982 	int err, rate, dummy;
983 
984 	runtime->dma_area = (void __force *)(rme96->iobase +
985 					     RME96_IO_PLAY_BUFFER);
986 	runtime->dma_addr = rme96->port + RME96_IO_PLAY_BUFFER;
987 	runtime->dma_bytes = RME96_BUFFER_SIZE;
988 
989 	spin_lock_irq(&rme96->lock);
990 	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
991             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
992 	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
993 	{
994                 /* slave clock */
995                 if ((int)params_rate(params) != rate) {
996 			spin_unlock_irq(&rme96->lock);
997 			return -EIO;
998                 }
999 	} else if ((err = snd_rme96_playback_setrate(rme96, params_rate(params))) < 0) {
1000 		spin_unlock_irq(&rme96->lock);
1001 		return err;
1002 	}
1003 	if ((err = snd_rme96_playback_setformat(rme96, params_format(params))) < 0) {
1004 		spin_unlock_irq(&rme96->lock);
1005 		return err;
1006 	}
1007 	snd_rme96_setframelog(rme96, params_channels(params), 1);
1008 	if (rme96->capture_periodsize != 0) {
1009 		if (params_period_size(params) << rme96->playback_frlog !=
1010 		    rme96->capture_periodsize)
1011 		{
1012 			spin_unlock_irq(&rme96->lock);
1013 			return -EBUSY;
1014 		}
1015 	}
1016 	rme96->playback_periodsize =
1017 		params_period_size(params) << rme96->playback_frlog;
1018 	snd_rme96_set_period_properties(rme96, rme96->playback_periodsize);
1019 	/* S/PDIF setup */
1020 	if ((rme96->wcreg & RME96_WCR_ADAT) == 0) {
1021 		rme96->wcreg &= ~(RME96_WCR_PRO | RME96_WCR_DOLBY | RME96_WCR_EMP);
1022 		writel(rme96->wcreg |= rme96->wcreg_spdif_stream, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1023 	}
1024 	spin_unlock_irq(&rme96->lock);
1025 
1026 	return 0;
1027 }
1028 
1029 static int
1030 snd_rme96_capture_hw_params(struct snd_pcm_substream *substream,
1031 			    struct snd_pcm_hw_params *params)
1032 {
1033 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1034 	struct snd_pcm_runtime *runtime = substream->runtime;
1035 	int err, isadat, rate;
1036 
1037 	runtime->dma_area = (void __force *)(rme96->iobase +
1038 					     RME96_IO_REC_BUFFER);
1039 	runtime->dma_addr = rme96->port + RME96_IO_REC_BUFFER;
1040 	runtime->dma_bytes = RME96_BUFFER_SIZE;
1041 
1042 	spin_lock_irq(&rme96->lock);
1043 	if ((err = snd_rme96_capture_setformat(rme96, params_format(params))) < 0) {
1044 		spin_unlock_irq(&rme96->lock);
1045 		return err;
1046 	}
1047 	if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1048 		if ((err = snd_rme96_capture_analog_setrate(rme96,
1049 							    params_rate(params))) < 0)
1050 		{
1051 			spin_unlock_irq(&rme96->lock);
1052 			return err;
1053 		}
1054 	} else if ((rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0) {
1055                 if ((int)params_rate(params) != rate) {
1056 			spin_unlock_irq(&rme96->lock);
1057 			return -EIO;
1058                 }
1059                 if ((isadat && runtime->hw.channels_min == 2) ||
1060                     (!isadat && runtime->hw.channels_min == 8))
1061                 {
1062 			spin_unlock_irq(&rme96->lock);
1063 			return -EIO;
1064                 }
1065         }
1066 	snd_rme96_setframelog(rme96, params_channels(params), 0);
1067 	if (rme96->playback_periodsize != 0) {
1068 		if (params_period_size(params) << rme96->capture_frlog !=
1069 		    rme96->playback_periodsize)
1070 		{
1071 			spin_unlock_irq(&rme96->lock);
1072 			return -EBUSY;
1073 		}
1074 	}
1075 	rme96->capture_periodsize =
1076 		params_period_size(params) << rme96->capture_frlog;
1077 	snd_rme96_set_period_properties(rme96, rme96->capture_periodsize);
1078 	spin_unlock_irq(&rme96->lock);
1079 
1080 	return 0;
1081 }
1082 
1083 static void
1084 snd_rme96_trigger(struct rme96 *rme96,
1085 		  int op)
1086 {
1087 	if (op & RME96_TB_RESET_PLAYPOS)
1088 		writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1089 	if (op & RME96_TB_RESET_CAPTUREPOS)
1090 		writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1091 	if (op & RME96_TB_CLEAR_PLAYBACK_IRQ) {
1092 		rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1093 		if (rme96->rcreg & RME96_RCR_IRQ)
1094 			writel(0, rme96->iobase + RME96_IO_CONFIRM_PLAY_IRQ);
1095 	}
1096 	if (op & RME96_TB_CLEAR_CAPTURE_IRQ) {
1097 		rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1098 		if (rme96->rcreg & RME96_RCR_IRQ_2)
1099 			writel(0, rme96->iobase + RME96_IO_CONFIRM_REC_IRQ);
1100 	}
1101 	if (op & RME96_TB_START_PLAYBACK)
1102 		rme96->wcreg |= RME96_WCR_START;
1103 	if (op & RME96_TB_STOP_PLAYBACK)
1104 		rme96->wcreg &= ~RME96_WCR_START;
1105 	if (op & RME96_TB_START_CAPTURE)
1106 		rme96->wcreg |= RME96_WCR_START_2;
1107 	if (op & RME96_TB_STOP_CAPTURE)
1108 		rme96->wcreg &= ~RME96_WCR_START_2;
1109 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1110 }
1111 
1112 
1113 
1114 static irqreturn_t
1115 snd_rme96_interrupt(int irq,
1116 		    void *dev_id)
1117 {
1118 	struct rme96 *rme96 = (struct rme96 *)dev_id;
1119 
1120 	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1121 	/* fastpath out, to ease interrupt sharing */
1122 	if (!((rme96->rcreg & RME96_RCR_IRQ) ||
1123 	      (rme96->rcreg & RME96_RCR_IRQ_2)))
1124 	{
1125 		return IRQ_NONE;
1126 	}
1127 
1128 	if (rme96->rcreg & RME96_RCR_IRQ) {
1129 		/* playback */
1130                 snd_pcm_period_elapsed(rme96->playback_substream);
1131 		writel(0, rme96->iobase + RME96_IO_CONFIRM_PLAY_IRQ);
1132 	}
1133 	if (rme96->rcreg & RME96_RCR_IRQ_2) {
1134 		/* capture */
1135 		snd_pcm_period_elapsed(rme96->capture_substream);
1136 		writel(0, rme96->iobase + RME96_IO_CONFIRM_REC_IRQ);
1137 	}
1138 	return IRQ_HANDLED;
1139 }
1140 
1141 static unsigned int period_bytes[] = { RME96_SMALL_BLOCK_SIZE, RME96_LARGE_BLOCK_SIZE };
1142 
1143 static struct snd_pcm_hw_constraint_list hw_constraints_period_bytes = {
1144 	.count = ARRAY_SIZE(period_bytes),
1145 	.list = period_bytes,
1146 	.mask = 0
1147 };
1148 
1149 static void
1150 rme96_set_buffer_size_constraint(struct rme96 *rme96,
1151 				 struct snd_pcm_runtime *runtime)
1152 {
1153 	unsigned int size;
1154 
1155 	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1156 				     RME96_BUFFER_SIZE, RME96_BUFFER_SIZE);
1157 	if ((size = rme96->playback_periodsize) != 0 ||
1158 	    (size = rme96->capture_periodsize) != 0)
1159 		snd_pcm_hw_constraint_minmax(runtime,
1160 					     SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1161 					     size, size);
1162 	else
1163 		snd_pcm_hw_constraint_list(runtime, 0,
1164 					   SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1165 					   &hw_constraints_period_bytes);
1166 }
1167 
1168 static int
1169 snd_rme96_playback_spdif_open(struct snd_pcm_substream *substream)
1170 {
1171         int rate, dummy;
1172 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1173 	struct snd_pcm_runtime *runtime = substream->runtime;
1174 
1175 	snd_pcm_set_sync(substream);
1176 	spin_lock_irq(&rme96->lock);
1177         if (rme96->playback_substream != NULL) {
1178 		spin_unlock_irq(&rme96->lock);
1179                 return -EBUSY;
1180         }
1181 	rme96->wcreg &= ~RME96_WCR_ADAT;
1182 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1183 	rme96->playback_substream = substream;
1184 	spin_unlock_irq(&rme96->lock);
1185 
1186 	runtime->hw = snd_rme96_playback_spdif_info;
1187 	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
1188             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1189 	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
1190 	{
1191                 /* slave clock */
1192                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1193                 runtime->hw.rate_min = rate;
1194                 runtime->hw.rate_max = rate;
1195 	}
1196 	rme96_set_buffer_size_constraint(rme96, runtime);
1197 
1198 	rme96->wcreg_spdif_stream = rme96->wcreg_spdif;
1199 	rme96->spdif_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1200 	snd_ctl_notify(rme96->card, SNDRV_CTL_EVENT_MASK_VALUE |
1201 		       SNDRV_CTL_EVENT_MASK_INFO, &rme96->spdif_ctl->id);
1202 	return 0;
1203 }
1204 
1205 static int
1206 snd_rme96_capture_spdif_open(struct snd_pcm_substream *substream)
1207 {
1208         int isadat, rate;
1209 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1210 	struct snd_pcm_runtime *runtime = substream->runtime;
1211 
1212 	snd_pcm_set_sync(substream);
1213 	runtime->hw = snd_rme96_capture_spdif_info;
1214         if (snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1215             (rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0)
1216         {
1217                 if (isadat) {
1218                         return -EIO;
1219                 }
1220                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1221                 runtime->hw.rate_min = rate;
1222                 runtime->hw.rate_max = rate;
1223         }
1224 
1225 	spin_lock_irq(&rme96->lock);
1226         if (rme96->capture_substream != NULL) {
1227 		spin_unlock_irq(&rme96->lock);
1228                 return -EBUSY;
1229         }
1230 	rme96->capture_substream = substream;
1231 	spin_unlock_irq(&rme96->lock);
1232 
1233 	rme96_set_buffer_size_constraint(rme96, runtime);
1234 	return 0;
1235 }
1236 
1237 static int
1238 snd_rme96_playback_adat_open(struct snd_pcm_substream *substream)
1239 {
1240         int rate, dummy;
1241 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1242 	struct snd_pcm_runtime *runtime = substream->runtime;
1243 
1244 	snd_pcm_set_sync(substream);
1245 	spin_lock_irq(&rme96->lock);
1246         if (rme96->playback_substream != NULL) {
1247 		spin_unlock_irq(&rme96->lock);
1248                 return -EBUSY;
1249         }
1250 	rme96->wcreg |= RME96_WCR_ADAT;
1251 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1252 	rme96->playback_substream = substream;
1253 	spin_unlock_irq(&rme96->lock);
1254 
1255 	runtime->hw = snd_rme96_playback_adat_info;
1256 	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
1257             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1258 	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
1259 	{
1260                 /* slave clock */
1261                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1262                 runtime->hw.rate_min = rate;
1263                 runtime->hw.rate_max = rate;
1264 	}
1265 	rme96_set_buffer_size_constraint(rme96, runtime);
1266 	return 0;
1267 }
1268 
1269 static int
1270 snd_rme96_capture_adat_open(struct snd_pcm_substream *substream)
1271 {
1272         int isadat, rate;
1273 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1274 	struct snd_pcm_runtime *runtime = substream->runtime;
1275 
1276 	snd_pcm_set_sync(substream);
1277 	runtime->hw = snd_rme96_capture_adat_info;
1278         if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1279                 /* makes no sense to use analog input. Note that analog
1280                    expension cards AEB4/8-I are RME96_INPUT_INTERNAL */
1281                 return -EIO;
1282         }
1283         if ((rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0) {
1284                 if (!isadat) {
1285                         return -EIO;
1286                 }
1287                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1288                 runtime->hw.rate_min = rate;
1289                 runtime->hw.rate_max = rate;
1290         }
1291 
1292 	spin_lock_irq(&rme96->lock);
1293         if (rme96->capture_substream != NULL) {
1294 		spin_unlock_irq(&rme96->lock);
1295                 return -EBUSY;
1296         }
1297 	rme96->capture_substream = substream;
1298 	spin_unlock_irq(&rme96->lock);
1299 
1300 	rme96_set_buffer_size_constraint(rme96, runtime);
1301 	return 0;
1302 }
1303 
1304 static int
1305 snd_rme96_playback_close(struct snd_pcm_substream *substream)
1306 {
1307 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1308 	int spdif = 0;
1309 
1310 	spin_lock_irq(&rme96->lock);
1311 	if (RME96_ISPLAYING(rme96)) {
1312 		snd_rme96_trigger(rme96, RME96_STOP_PLAYBACK);
1313 	}
1314 	rme96->playback_substream = NULL;
1315 	rme96->playback_periodsize = 0;
1316 	spdif = (rme96->wcreg & RME96_WCR_ADAT) == 0;
1317 	spin_unlock_irq(&rme96->lock);
1318 	if (spdif) {
1319 		rme96->spdif_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1320 		snd_ctl_notify(rme96->card, SNDRV_CTL_EVENT_MASK_VALUE |
1321 			       SNDRV_CTL_EVENT_MASK_INFO, &rme96->spdif_ctl->id);
1322 	}
1323 	return 0;
1324 }
1325 
1326 static int
1327 snd_rme96_capture_close(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_ISRECORDING(rme96)) {
1333 		snd_rme96_trigger(rme96, RME96_STOP_CAPTURE);
1334 	}
1335 	rme96->capture_substream = NULL;
1336 	rme96->capture_periodsize = 0;
1337 	spin_unlock_irq(&rme96->lock);
1338 	return 0;
1339 }
1340 
1341 static int
1342 snd_rme96_playback_prepare(struct snd_pcm_substream *substream)
1343 {
1344 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1345 
1346 	spin_lock_irq(&rme96->lock);
1347 	if (RME96_ISPLAYING(rme96)) {
1348 		snd_rme96_trigger(rme96, RME96_STOP_PLAYBACK);
1349 	}
1350 	writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1351 	spin_unlock_irq(&rme96->lock);
1352 	return 0;
1353 }
1354 
1355 static int
1356 snd_rme96_capture_prepare(struct snd_pcm_substream *substream)
1357 {
1358 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1359 
1360 	spin_lock_irq(&rme96->lock);
1361 	if (RME96_ISRECORDING(rme96)) {
1362 		snd_rme96_trigger(rme96, RME96_STOP_CAPTURE);
1363 	}
1364 	writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1365 	spin_unlock_irq(&rme96->lock);
1366 	return 0;
1367 }
1368 
1369 static int
1370 snd_rme96_playback_trigger(struct snd_pcm_substream *substream,
1371 			   int cmd)
1372 {
1373 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1374 	struct snd_pcm_substream *s;
1375 	bool sync;
1376 
1377 	snd_pcm_group_for_each_entry(s, substream) {
1378 		if (snd_pcm_substream_chip(s) == rme96)
1379 			snd_pcm_trigger_done(s, substream);
1380 	}
1381 
1382 	sync = (rme96->playback_substream && rme96->capture_substream) &&
1383 	       (rme96->playback_substream->group ==
1384 		rme96->capture_substream->group);
1385 
1386 	switch (cmd) {
1387 	case SNDRV_PCM_TRIGGER_START:
1388 		if (!RME96_ISPLAYING(rme96)) {
1389 			if (substream != rme96->playback_substream)
1390 				return -EBUSY;
1391 			snd_rme96_trigger(rme96, sync ? RME96_START_BOTH
1392 						 : RME96_START_PLAYBACK);
1393 		}
1394 		break;
1395 
1396 	case SNDRV_PCM_TRIGGER_SUSPEND:
1397 	case SNDRV_PCM_TRIGGER_STOP:
1398 		if (RME96_ISPLAYING(rme96)) {
1399 			if (substream != rme96->playback_substream)
1400 				return -EBUSY;
1401 			snd_rme96_trigger(rme96, sync ? RME96_STOP_BOTH
1402 						 :  RME96_STOP_PLAYBACK);
1403 		}
1404 		break;
1405 
1406 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1407 		if (RME96_ISPLAYING(rme96))
1408 			snd_rme96_trigger(rme96, sync ? RME96_STOP_BOTH
1409 						 : RME96_STOP_PLAYBACK);
1410 		break;
1411 
1412 	case SNDRV_PCM_TRIGGER_RESUME:
1413 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1414 		if (!RME96_ISPLAYING(rme96))
1415 			snd_rme96_trigger(rme96, sync ? RME96_RESUME_BOTH
1416 						 : RME96_RESUME_PLAYBACK);
1417 		break;
1418 
1419 	default:
1420 		return -EINVAL;
1421 	}
1422 
1423 	return 0;
1424 }
1425 
1426 static int
1427 snd_rme96_capture_trigger(struct snd_pcm_substream *substream,
1428 			  int cmd)
1429 {
1430 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1431 	struct snd_pcm_substream *s;
1432 	bool sync;
1433 
1434 	snd_pcm_group_for_each_entry(s, substream) {
1435 		if (snd_pcm_substream_chip(s) == rme96)
1436 			snd_pcm_trigger_done(s, substream);
1437 	}
1438 
1439 	sync = (rme96->playback_substream && rme96->capture_substream) &&
1440 	       (rme96->playback_substream->group ==
1441 		rme96->capture_substream->group);
1442 
1443 	switch (cmd) {
1444 	case SNDRV_PCM_TRIGGER_START:
1445 		if (!RME96_ISRECORDING(rme96)) {
1446 			if (substream != rme96->capture_substream)
1447 				return -EBUSY;
1448 			snd_rme96_trigger(rme96, sync ? RME96_START_BOTH
1449 						 : RME96_START_CAPTURE);
1450 		}
1451 		break;
1452 
1453 	case SNDRV_PCM_TRIGGER_SUSPEND:
1454 	case SNDRV_PCM_TRIGGER_STOP:
1455 		if (RME96_ISRECORDING(rme96)) {
1456 			if (substream != rme96->capture_substream)
1457 				return -EBUSY;
1458 			snd_rme96_trigger(rme96, sync ? RME96_STOP_BOTH
1459 						 : RME96_STOP_CAPTURE);
1460 		}
1461 		break;
1462 
1463 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1464 		if (RME96_ISRECORDING(rme96))
1465 			snd_rme96_trigger(rme96, sync ? RME96_STOP_BOTH
1466 						 : RME96_STOP_CAPTURE);
1467 		break;
1468 
1469 	case SNDRV_PCM_TRIGGER_RESUME:
1470 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1471 		if (!RME96_ISRECORDING(rme96))
1472 			snd_rme96_trigger(rme96, sync ? RME96_RESUME_BOTH
1473 						 : RME96_RESUME_CAPTURE);
1474 		break;
1475 
1476 	default:
1477 		return -EINVAL;
1478 	}
1479 
1480 	return 0;
1481 }
1482 
1483 static snd_pcm_uframes_t
1484 snd_rme96_playback_pointer(struct snd_pcm_substream *substream)
1485 {
1486 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1487 	return snd_rme96_playback_ptr(rme96);
1488 }
1489 
1490 static snd_pcm_uframes_t
1491 snd_rme96_capture_pointer(struct snd_pcm_substream *substream)
1492 {
1493 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1494 	return snd_rme96_capture_ptr(rme96);
1495 }
1496 
1497 static struct snd_pcm_ops snd_rme96_playback_spdif_ops = {
1498 	.open =		snd_rme96_playback_spdif_open,
1499 	.close =	snd_rme96_playback_close,
1500 	.ioctl =	snd_pcm_lib_ioctl,
1501 	.hw_params =	snd_rme96_playback_hw_params,
1502 	.prepare =	snd_rme96_playback_prepare,
1503 	.trigger =	snd_rme96_playback_trigger,
1504 	.pointer =	snd_rme96_playback_pointer,
1505 	.copy =		snd_rme96_playback_copy,
1506 	.silence =	snd_rme96_playback_silence,
1507 	.mmap =		snd_pcm_lib_mmap_iomem,
1508 };
1509 
1510 static struct snd_pcm_ops snd_rme96_capture_spdif_ops = {
1511 	.open =		snd_rme96_capture_spdif_open,
1512 	.close =	snd_rme96_capture_close,
1513 	.ioctl =	snd_pcm_lib_ioctl,
1514 	.hw_params =	snd_rme96_capture_hw_params,
1515 	.prepare =	snd_rme96_capture_prepare,
1516 	.trigger =	snd_rme96_capture_trigger,
1517 	.pointer =	snd_rme96_capture_pointer,
1518 	.copy =		snd_rme96_capture_copy,
1519 	.mmap =		snd_pcm_lib_mmap_iomem,
1520 };
1521 
1522 static struct snd_pcm_ops snd_rme96_playback_adat_ops = {
1523 	.open =		snd_rme96_playback_adat_open,
1524 	.close =	snd_rme96_playback_close,
1525 	.ioctl =	snd_pcm_lib_ioctl,
1526 	.hw_params =	snd_rme96_playback_hw_params,
1527 	.prepare =	snd_rme96_playback_prepare,
1528 	.trigger =	snd_rme96_playback_trigger,
1529 	.pointer =	snd_rme96_playback_pointer,
1530 	.copy =		snd_rme96_playback_copy,
1531 	.silence =	snd_rme96_playback_silence,
1532 	.mmap =		snd_pcm_lib_mmap_iomem,
1533 };
1534 
1535 static struct snd_pcm_ops snd_rme96_capture_adat_ops = {
1536 	.open =		snd_rme96_capture_adat_open,
1537 	.close =	snd_rme96_capture_close,
1538 	.ioctl =	snd_pcm_lib_ioctl,
1539 	.hw_params =	snd_rme96_capture_hw_params,
1540 	.prepare =	snd_rme96_capture_prepare,
1541 	.trigger =	snd_rme96_capture_trigger,
1542 	.pointer =	snd_rme96_capture_pointer,
1543 	.copy =		snd_rme96_capture_copy,
1544 	.mmap =		snd_pcm_lib_mmap_iomem,
1545 };
1546 
1547 static void
1548 snd_rme96_free(void *private_data)
1549 {
1550 	struct rme96 *rme96 = (struct rme96 *)private_data;
1551 
1552 	if (rme96 == NULL) {
1553 	        return;
1554 	}
1555 	if (rme96->irq >= 0) {
1556 		snd_rme96_trigger(rme96, RME96_STOP_BOTH);
1557 		rme96->areg &= ~RME96_AR_DAC_EN;
1558 		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1559 		free_irq(rme96->irq, (void *)rme96);
1560 		rme96->irq = -1;
1561 	}
1562 	if (rme96->iobase) {
1563 		iounmap(rme96->iobase);
1564 		rme96->iobase = NULL;
1565 	}
1566 	if (rme96->port) {
1567 		pci_release_regions(rme96->pci);
1568 		rme96->port = 0;
1569 	}
1570 #ifdef CONFIG_PM_SLEEP
1571 	vfree(rme96->playback_suspend_buffer);
1572 	vfree(rme96->capture_suspend_buffer);
1573 #endif
1574 	pci_disable_device(rme96->pci);
1575 }
1576 
1577 static void
1578 snd_rme96_free_spdif_pcm(struct snd_pcm *pcm)
1579 {
1580 	struct rme96 *rme96 = pcm->private_data;
1581 	rme96->spdif_pcm = NULL;
1582 }
1583 
1584 static void
1585 snd_rme96_free_adat_pcm(struct snd_pcm *pcm)
1586 {
1587 	struct rme96 *rme96 = pcm->private_data;
1588 	rme96->adat_pcm = NULL;
1589 }
1590 
1591 static int
1592 snd_rme96_create(struct rme96 *rme96)
1593 {
1594 	struct pci_dev *pci = rme96->pci;
1595 	int err;
1596 
1597 	rme96->irq = -1;
1598 	spin_lock_init(&rme96->lock);
1599 
1600 	if ((err = pci_enable_device(pci)) < 0)
1601 		return err;
1602 
1603 	if ((err = pci_request_regions(pci, "RME96")) < 0)
1604 		return err;
1605 	rme96->port = pci_resource_start(rme96->pci, 0);
1606 
1607 	rme96->iobase = ioremap_nocache(rme96->port, RME96_IO_SIZE);
1608 	if (!rme96->iobase) {
1609 		dev_err(rme96->card->dev,
1610 			"unable to remap memory region 0x%lx-0x%lx\n",
1611 			rme96->port, rme96->port + RME96_IO_SIZE - 1);
1612 		return -ENOMEM;
1613 	}
1614 
1615 	if (request_irq(pci->irq, snd_rme96_interrupt, IRQF_SHARED,
1616 			KBUILD_MODNAME, rme96)) {
1617 		dev_err(rme96->card->dev, "unable to grab IRQ %d\n", pci->irq);
1618 		return -EBUSY;
1619 	}
1620 	rme96->irq = pci->irq;
1621 
1622 	/* read the card's revision number */
1623 	pci_read_config_byte(pci, 8, &rme96->rev);
1624 
1625 	/* set up ALSA pcm device for S/PDIF */
1626 	if ((err = snd_pcm_new(rme96->card, "Digi96 IEC958", 0,
1627 			       1, 1, &rme96->spdif_pcm)) < 0)
1628 	{
1629 		return err;
1630 	}
1631 	rme96->spdif_pcm->private_data = rme96;
1632 	rme96->spdif_pcm->private_free = snd_rme96_free_spdif_pcm;
1633 	strcpy(rme96->spdif_pcm->name, "Digi96 IEC958");
1634 	snd_pcm_set_ops(rme96->spdif_pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_rme96_playback_spdif_ops);
1635 	snd_pcm_set_ops(rme96->spdif_pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_rme96_capture_spdif_ops);
1636 
1637 	rme96->spdif_pcm->info_flags = 0;
1638 
1639 	/* set up ALSA pcm device for ADAT */
1640 	if (pci->device == PCI_DEVICE_ID_RME_DIGI96) {
1641 		/* ADAT is not available on the base model */
1642 		rme96->adat_pcm = NULL;
1643 	} else {
1644 		if ((err = snd_pcm_new(rme96->card, "Digi96 ADAT", 1,
1645 				       1, 1, &rme96->adat_pcm)) < 0)
1646 		{
1647 			return err;
1648 		}
1649 		rme96->adat_pcm->private_data = rme96;
1650 		rme96->adat_pcm->private_free = snd_rme96_free_adat_pcm;
1651 		strcpy(rme96->adat_pcm->name, "Digi96 ADAT");
1652 		snd_pcm_set_ops(rme96->adat_pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_rme96_playback_adat_ops);
1653 		snd_pcm_set_ops(rme96->adat_pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_rme96_capture_adat_ops);
1654 
1655 		rme96->adat_pcm->info_flags = 0;
1656 	}
1657 
1658 	rme96->playback_periodsize = 0;
1659 	rme96->capture_periodsize = 0;
1660 
1661 	/* make sure playback/capture is stopped, if by some reason active */
1662 	snd_rme96_trigger(rme96, RME96_STOP_BOTH);
1663 
1664 	/* set default values in registers */
1665 	rme96->wcreg =
1666 		RME96_WCR_FREQ_1 | /* set 44.1 kHz playback */
1667 		RME96_WCR_SEL |    /* normal playback */
1668 		RME96_WCR_MASTER | /* set to master clock mode */
1669 		RME96_WCR_INP_0;   /* set coaxial input */
1670 
1671 	rme96->areg = RME96_AR_FREQPAD_1; /* set 44.1 kHz analog capture */
1672 
1673 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1674 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1675 
1676 	/* reset the ADC */
1677 	writel(rme96->areg | RME96_AR_PD2,
1678 	       rme96->iobase + RME96_IO_ADDITIONAL_REG);
1679 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1680 
1681 	/* reset and enable the DAC (order is important). */
1682 	snd_rme96_reset_dac(rme96);
1683 	rme96->areg |= RME96_AR_DAC_EN;
1684 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1685 
1686 	/* reset playback and record buffer pointers */
1687 	writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1688 	writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1689 
1690 	/* reset volume */
1691 	rme96->vol[0] = rme96->vol[1] = 0;
1692 	if (RME96_HAS_ANALOG_OUT(rme96)) {
1693 		snd_rme96_apply_dac_volume(rme96);
1694 	}
1695 
1696 	/* init switch interface */
1697 	if ((err = snd_rme96_create_switches(rme96->card, rme96)) < 0) {
1698 		return err;
1699 	}
1700 
1701         /* init proc interface */
1702 	snd_rme96_proc_init(rme96);
1703 
1704 	return 0;
1705 }
1706 
1707 /*
1708  * proc interface
1709  */
1710 
1711 static void
1712 snd_rme96_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
1713 {
1714 	int n;
1715 	struct rme96 *rme96 = entry->private_data;
1716 
1717 	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1718 
1719 	snd_iprintf(buffer, rme96->card->longname);
1720 	snd_iprintf(buffer, " (index #%d)\n", rme96->card->number + 1);
1721 
1722 	snd_iprintf(buffer, "\nGeneral settings\n");
1723 	if (rme96->wcreg & RME96_WCR_IDIS) {
1724 		snd_iprintf(buffer, "  period size: N/A (interrupts "
1725 			    "disabled)\n");
1726 	} else if (rme96->wcreg & RME96_WCR_ISEL) {
1727 		snd_iprintf(buffer, "  period size: 2048 bytes\n");
1728 	} else {
1729 		snd_iprintf(buffer, "  period size: 8192 bytes\n");
1730 	}
1731 	snd_iprintf(buffer, "\nInput settings\n");
1732 	switch (snd_rme96_getinputtype(rme96)) {
1733 	case RME96_INPUT_OPTICAL:
1734 		snd_iprintf(buffer, "  input: optical");
1735 		break;
1736 	case RME96_INPUT_COAXIAL:
1737 		snd_iprintf(buffer, "  input: coaxial");
1738 		break;
1739 	case RME96_INPUT_INTERNAL:
1740 		snd_iprintf(buffer, "  input: internal");
1741 		break;
1742 	case RME96_INPUT_XLR:
1743 		snd_iprintf(buffer, "  input: XLR");
1744 		break;
1745 	case RME96_INPUT_ANALOG:
1746 		snd_iprintf(buffer, "  input: analog");
1747 		break;
1748 	}
1749 	if (snd_rme96_capture_getrate(rme96, &n) < 0) {
1750 		snd_iprintf(buffer, "\n  sample rate: no valid signal\n");
1751 	} else {
1752 		if (n) {
1753 			snd_iprintf(buffer, " (8 channels)\n");
1754 		} else {
1755 			snd_iprintf(buffer, " (2 channels)\n");
1756 		}
1757 		snd_iprintf(buffer, "  sample rate: %d Hz\n",
1758 			    snd_rme96_capture_getrate(rme96, &n));
1759 	}
1760 	if (rme96->wcreg & RME96_WCR_MODE24_2) {
1761 		snd_iprintf(buffer, "  sample format: 24 bit\n");
1762 	} else {
1763 		snd_iprintf(buffer, "  sample format: 16 bit\n");
1764 	}
1765 
1766 	snd_iprintf(buffer, "\nOutput settings\n");
1767 	if (rme96->wcreg & RME96_WCR_SEL) {
1768 		snd_iprintf(buffer, "  output signal: normal playback\n");
1769 	} else {
1770 		snd_iprintf(buffer, "  output signal: same as input\n");
1771 	}
1772 	snd_iprintf(buffer, "  sample rate: %d Hz\n",
1773 		    snd_rme96_playback_getrate(rme96));
1774 	if (rme96->wcreg & RME96_WCR_MODE24) {
1775 		snd_iprintf(buffer, "  sample format: 24 bit\n");
1776 	} else {
1777 		snd_iprintf(buffer, "  sample format: 16 bit\n");
1778 	}
1779 	if (rme96->areg & RME96_AR_WSEL) {
1780 		snd_iprintf(buffer, "  sample clock source: word clock\n");
1781 	} else if (rme96->wcreg & RME96_WCR_MASTER) {
1782 		snd_iprintf(buffer, "  sample clock source: internal\n");
1783 	} else if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1784 		snd_iprintf(buffer, "  sample clock source: autosync (internal anyway due to analog input setting)\n");
1785 	} else if (snd_rme96_capture_getrate(rme96, &n) < 0) {
1786 		snd_iprintf(buffer, "  sample clock source: autosync (internal anyway due to no valid signal)\n");
1787 	} else {
1788 		snd_iprintf(buffer, "  sample clock source: autosync\n");
1789 	}
1790 	if (rme96->wcreg & RME96_WCR_PRO) {
1791 		snd_iprintf(buffer, "  format: AES/EBU (professional)\n");
1792 	} else {
1793 		snd_iprintf(buffer, "  format: IEC958 (consumer)\n");
1794 	}
1795 	if (rme96->wcreg & RME96_WCR_EMP) {
1796 		snd_iprintf(buffer, "  emphasis: on\n");
1797 	} else {
1798 		snd_iprintf(buffer, "  emphasis: off\n");
1799 	}
1800 	if (rme96->wcreg & RME96_WCR_DOLBY) {
1801 		snd_iprintf(buffer, "  non-audio (dolby): on\n");
1802 	} else {
1803 		snd_iprintf(buffer, "  non-audio (dolby): off\n");
1804 	}
1805 	if (RME96_HAS_ANALOG_IN(rme96)) {
1806 		snd_iprintf(buffer, "\nAnalog output settings\n");
1807 		switch (snd_rme96_getmontracks(rme96)) {
1808 		case RME96_MONITOR_TRACKS_1_2:
1809 			snd_iprintf(buffer, "  monitored ADAT tracks: 1+2\n");
1810 			break;
1811 		case RME96_MONITOR_TRACKS_3_4:
1812 			snd_iprintf(buffer, "  monitored ADAT tracks: 3+4\n");
1813 			break;
1814 		case RME96_MONITOR_TRACKS_5_6:
1815 			snd_iprintf(buffer, "  monitored ADAT tracks: 5+6\n");
1816 			break;
1817 		case RME96_MONITOR_TRACKS_7_8:
1818 			snd_iprintf(buffer, "  monitored ADAT tracks: 7+8\n");
1819 			break;
1820 		}
1821 		switch (snd_rme96_getattenuation(rme96)) {
1822 		case RME96_ATTENUATION_0:
1823 			snd_iprintf(buffer, "  attenuation: 0 dB\n");
1824 			break;
1825 		case RME96_ATTENUATION_6:
1826 			snd_iprintf(buffer, "  attenuation: -6 dB\n");
1827 			break;
1828 		case RME96_ATTENUATION_12:
1829 			snd_iprintf(buffer, "  attenuation: -12 dB\n");
1830 			break;
1831 		case RME96_ATTENUATION_18:
1832 			snd_iprintf(buffer, "  attenuation: -18 dB\n");
1833 			break;
1834 		}
1835 		snd_iprintf(buffer, "  volume left: %u\n", rme96->vol[0]);
1836 		snd_iprintf(buffer, "  volume right: %u\n", rme96->vol[1]);
1837 	}
1838 }
1839 
1840 static void snd_rme96_proc_init(struct rme96 *rme96)
1841 {
1842 	struct snd_info_entry *entry;
1843 
1844 	if (! snd_card_proc_new(rme96->card, "rme96", &entry))
1845 		snd_info_set_text_ops(entry, rme96, snd_rme96_proc_read);
1846 }
1847 
1848 /*
1849  * control interface
1850  */
1851 
1852 #define snd_rme96_info_loopback_control		snd_ctl_boolean_mono_info
1853 
1854 static int
1855 snd_rme96_get_loopback_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1856 {
1857 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1858 
1859 	spin_lock_irq(&rme96->lock);
1860 	ucontrol->value.integer.value[0] = rme96->wcreg & RME96_WCR_SEL ? 0 : 1;
1861 	spin_unlock_irq(&rme96->lock);
1862 	return 0;
1863 }
1864 static int
1865 snd_rme96_put_loopback_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1866 {
1867 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1868 	unsigned int val;
1869 	int change;
1870 
1871 	val = ucontrol->value.integer.value[0] ? 0 : RME96_WCR_SEL;
1872 	spin_lock_irq(&rme96->lock);
1873 	val = (rme96->wcreg & ~RME96_WCR_SEL) | val;
1874 	change = val != rme96->wcreg;
1875 	rme96->wcreg = val;
1876 	writel(val, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1877 	spin_unlock_irq(&rme96->lock);
1878 	return change;
1879 }
1880 
1881 static int
1882 snd_rme96_info_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1883 {
1884 	static const char * const _texts[5] = {
1885 		"Optical", "Coaxial", "Internal", "XLR", "Analog"
1886 	};
1887 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1888 	const char *texts[5] = {
1889 		_texts[0], _texts[1], _texts[2], _texts[3], _texts[4]
1890 	};
1891 	int num_items;
1892 
1893 	switch (rme96->pci->device) {
1894 	case PCI_DEVICE_ID_RME_DIGI96:
1895 	case PCI_DEVICE_ID_RME_DIGI96_8:
1896 		num_items = 3;
1897 		break;
1898 	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1899 		num_items = 4;
1900 		break;
1901 	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1902 		if (rme96->rev > 4) {
1903 			/* PST */
1904 			num_items = 4;
1905 			texts[3] = _texts[4]; /* Analog instead of XLR */
1906 		} else {
1907 			/* PAD */
1908 			num_items = 5;
1909 		}
1910 		break;
1911 	default:
1912 		snd_BUG();
1913 		return -EINVAL;
1914 	}
1915 	return snd_ctl_enum_info(uinfo, 1, num_items, texts);
1916 }
1917 static int
1918 snd_rme96_get_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1919 {
1920 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1921 	unsigned int items = 3;
1922 
1923 	spin_lock_irq(&rme96->lock);
1924 	ucontrol->value.enumerated.item[0] = snd_rme96_getinputtype(rme96);
1925 
1926 	switch (rme96->pci->device) {
1927 	case PCI_DEVICE_ID_RME_DIGI96:
1928 	case PCI_DEVICE_ID_RME_DIGI96_8:
1929 		items = 3;
1930 		break;
1931 	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1932 		items = 4;
1933 		break;
1934 	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1935 		if (rme96->rev > 4) {
1936 			/* for handling PST case, (INPUT_ANALOG is moved to INPUT_XLR */
1937 			if (ucontrol->value.enumerated.item[0] == RME96_INPUT_ANALOG) {
1938 				ucontrol->value.enumerated.item[0] = RME96_INPUT_XLR;
1939 			}
1940 			items = 4;
1941 		} else {
1942 			items = 5;
1943 		}
1944 		break;
1945 	default:
1946 		snd_BUG();
1947 		break;
1948 	}
1949 	if (ucontrol->value.enumerated.item[0] >= items) {
1950 		ucontrol->value.enumerated.item[0] = items - 1;
1951 	}
1952 
1953 	spin_unlock_irq(&rme96->lock);
1954 	return 0;
1955 }
1956 static int
1957 snd_rme96_put_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1958 {
1959 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1960 	unsigned int val;
1961 	int change, items = 3;
1962 
1963 	switch (rme96->pci->device) {
1964 	case PCI_DEVICE_ID_RME_DIGI96:
1965 	case PCI_DEVICE_ID_RME_DIGI96_8:
1966 		items = 3;
1967 		break;
1968 	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1969 		items = 4;
1970 		break;
1971 	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1972 		if (rme96->rev > 4) {
1973 			items = 4;
1974 		} else {
1975 			items = 5;
1976 		}
1977 		break;
1978 	default:
1979 		snd_BUG();
1980 		break;
1981 	}
1982 	val = ucontrol->value.enumerated.item[0] % items;
1983 
1984 	/* special case for PST */
1985 	if (rme96->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST && rme96->rev > 4) {
1986 		if (val == RME96_INPUT_XLR) {
1987 			val = RME96_INPUT_ANALOG;
1988 		}
1989 	}
1990 
1991 	spin_lock_irq(&rme96->lock);
1992 	change = (int)val != snd_rme96_getinputtype(rme96);
1993 	snd_rme96_setinputtype(rme96, val);
1994 	spin_unlock_irq(&rme96->lock);
1995 	return change;
1996 }
1997 
1998 static int
1999 snd_rme96_info_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2000 {
2001 	static const char * const texts[3] = { "AutoSync", "Internal", "Word" };
2002 
2003 	return snd_ctl_enum_info(uinfo, 1, 3, texts);
2004 }
2005 static int
2006 snd_rme96_get_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2007 {
2008 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2009 
2010 	spin_lock_irq(&rme96->lock);
2011 	ucontrol->value.enumerated.item[0] = snd_rme96_getclockmode(rme96);
2012 	spin_unlock_irq(&rme96->lock);
2013 	return 0;
2014 }
2015 static int
2016 snd_rme96_put_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2017 {
2018 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2019 	unsigned int val;
2020 	int change;
2021 
2022 	val = ucontrol->value.enumerated.item[0] % 3;
2023 	spin_lock_irq(&rme96->lock);
2024 	change = (int)val != snd_rme96_getclockmode(rme96);
2025 	snd_rme96_setclockmode(rme96, val);
2026 	spin_unlock_irq(&rme96->lock);
2027 	return change;
2028 }
2029 
2030 static int
2031 snd_rme96_info_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2032 {
2033 	static const char * const texts[4] = {
2034 		"0 dB", "-6 dB", "-12 dB", "-18 dB"
2035 	};
2036 
2037 	return snd_ctl_enum_info(uinfo, 1, 4, texts);
2038 }
2039 static int
2040 snd_rme96_get_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2041 {
2042 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2043 
2044 	spin_lock_irq(&rme96->lock);
2045 	ucontrol->value.enumerated.item[0] = snd_rme96_getattenuation(rme96);
2046 	spin_unlock_irq(&rme96->lock);
2047 	return 0;
2048 }
2049 static int
2050 snd_rme96_put_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2051 {
2052 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2053 	unsigned int val;
2054 	int change;
2055 
2056 	val = ucontrol->value.enumerated.item[0] % 4;
2057 	spin_lock_irq(&rme96->lock);
2058 
2059 	change = (int)val != snd_rme96_getattenuation(rme96);
2060 	snd_rme96_setattenuation(rme96, val);
2061 	spin_unlock_irq(&rme96->lock);
2062 	return change;
2063 }
2064 
2065 static int
2066 snd_rme96_info_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2067 {
2068 	static const char * const texts[4] = { "1+2", "3+4", "5+6", "7+8" };
2069 
2070 	return snd_ctl_enum_info(uinfo, 1, 4, texts);
2071 }
2072 static int
2073 snd_rme96_get_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2074 {
2075 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2076 
2077 	spin_lock_irq(&rme96->lock);
2078 	ucontrol->value.enumerated.item[0] = snd_rme96_getmontracks(rme96);
2079 	spin_unlock_irq(&rme96->lock);
2080 	return 0;
2081 }
2082 static int
2083 snd_rme96_put_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2084 {
2085 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2086 	unsigned int val;
2087 	int change;
2088 
2089 	val = ucontrol->value.enumerated.item[0] % 4;
2090 	spin_lock_irq(&rme96->lock);
2091 	change = (int)val != snd_rme96_getmontracks(rme96);
2092 	snd_rme96_setmontracks(rme96, val);
2093 	spin_unlock_irq(&rme96->lock);
2094 	return change;
2095 }
2096 
2097 static u32 snd_rme96_convert_from_aes(struct snd_aes_iec958 *aes)
2098 {
2099 	u32 val = 0;
2100 	val |= (aes->status[0] & IEC958_AES0_PROFESSIONAL) ? RME96_WCR_PRO : 0;
2101 	val |= (aes->status[0] & IEC958_AES0_NONAUDIO) ? RME96_WCR_DOLBY : 0;
2102 	if (val & RME96_WCR_PRO)
2103 		val |= (aes->status[0] & IEC958_AES0_PRO_EMPHASIS_5015) ? RME96_WCR_EMP : 0;
2104 	else
2105 		val |= (aes->status[0] & IEC958_AES0_CON_EMPHASIS_5015) ? RME96_WCR_EMP : 0;
2106 	return val;
2107 }
2108 
2109 static void snd_rme96_convert_to_aes(struct snd_aes_iec958 *aes, u32 val)
2110 {
2111 	aes->status[0] = ((val & RME96_WCR_PRO) ? IEC958_AES0_PROFESSIONAL : 0) |
2112 			 ((val & RME96_WCR_DOLBY) ? IEC958_AES0_NONAUDIO : 0);
2113 	if (val & RME96_WCR_PRO)
2114 		aes->status[0] |= (val & RME96_WCR_EMP) ? IEC958_AES0_PRO_EMPHASIS_5015 : 0;
2115 	else
2116 		aes->status[0] |= (val & RME96_WCR_EMP) ? IEC958_AES0_CON_EMPHASIS_5015 : 0;
2117 }
2118 
2119 static int snd_rme96_control_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2120 {
2121 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2122 	uinfo->count = 1;
2123 	return 0;
2124 }
2125 
2126 static int snd_rme96_control_spdif_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2127 {
2128 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2129 
2130 	snd_rme96_convert_to_aes(&ucontrol->value.iec958, rme96->wcreg_spdif);
2131 	return 0;
2132 }
2133 
2134 static int snd_rme96_control_spdif_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2135 {
2136 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2137 	int change;
2138 	u32 val;
2139 
2140 	val = snd_rme96_convert_from_aes(&ucontrol->value.iec958);
2141 	spin_lock_irq(&rme96->lock);
2142 	change = val != rme96->wcreg_spdif;
2143 	rme96->wcreg_spdif = val;
2144 	spin_unlock_irq(&rme96->lock);
2145 	return change;
2146 }
2147 
2148 static int snd_rme96_control_spdif_stream_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2149 {
2150 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2151 	uinfo->count = 1;
2152 	return 0;
2153 }
2154 
2155 static int snd_rme96_control_spdif_stream_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2156 {
2157 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2158 
2159 	snd_rme96_convert_to_aes(&ucontrol->value.iec958, rme96->wcreg_spdif_stream);
2160 	return 0;
2161 }
2162 
2163 static int snd_rme96_control_spdif_stream_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2164 {
2165 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2166 	int change;
2167 	u32 val;
2168 
2169 	val = snd_rme96_convert_from_aes(&ucontrol->value.iec958);
2170 	spin_lock_irq(&rme96->lock);
2171 	change = val != rme96->wcreg_spdif_stream;
2172 	rme96->wcreg_spdif_stream = val;
2173 	rme96->wcreg &= ~(RME96_WCR_PRO | RME96_WCR_DOLBY | RME96_WCR_EMP);
2174 	rme96->wcreg |= val;
2175 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
2176 	spin_unlock_irq(&rme96->lock);
2177 	return change;
2178 }
2179 
2180 static int snd_rme96_control_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2181 {
2182 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2183 	uinfo->count = 1;
2184 	return 0;
2185 }
2186 
2187 static int snd_rme96_control_spdif_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2188 {
2189 	ucontrol->value.iec958.status[0] = kcontrol->private_value;
2190 	return 0;
2191 }
2192 
2193 static int
2194 snd_rme96_dac_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2195 {
2196 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2197 
2198         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2199         uinfo->count = 2;
2200         uinfo->value.integer.min = 0;
2201 	uinfo->value.integer.max = RME96_185X_MAX_OUT(rme96);
2202         return 0;
2203 }
2204 
2205 static int
2206 snd_rme96_dac_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *u)
2207 {
2208 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2209 
2210 	spin_lock_irq(&rme96->lock);
2211         u->value.integer.value[0] = rme96->vol[0];
2212         u->value.integer.value[1] = rme96->vol[1];
2213 	spin_unlock_irq(&rme96->lock);
2214 
2215         return 0;
2216 }
2217 
2218 static int
2219 snd_rme96_dac_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *u)
2220 {
2221 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2222         int change = 0;
2223 	unsigned int vol, maxvol;
2224 
2225 
2226 	if (!RME96_HAS_ANALOG_OUT(rme96))
2227 		return -EINVAL;
2228 	maxvol = RME96_185X_MAX_OUT(rme96);
2229 	spin_lock_irq(&rme96->lock);
2230 	vol = u->value.integer.value[0];
2231 	if (vol != rme96->vol[0] && vol <= maxvol) {
2232 		rme96->vol[0] = vol;
2233 		change = 1;
2234 	}
2235 	vol = u->value.integer.value[1];
2236 	if (vol != rme96->vol[1] && vol <= maxvol) {
2237 		rme96->vol[1] = vol;
2238 		change = 1;
2239 	}
2240 	if (change)
2241 		snd_rme96_apply_dac_volume(rme96);
2242 	spin_unlock_irq(&rme96->lock);
2243 
2244         return change;
2245 }
2246 
2247 static struct snd_kcontrol_new snd_rme96_controls[] = {
2248 {
2249 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2250 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
2251 	.info =		snd_rme96_control_spdif_info,
2252 	.get =		snd_rme96_control_spdif_get,
2253 	.put =		snd_rme96_control_spdif_put
2254 },
2255 {
2256 	.access =	SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
2257 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2258 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
2259 	.info =		snd_rme96_control_spdif_stream_info,
2260 	.get =		snd_rme96_control_spdif_stream_get,
2261 	.put =		snd_rme96_control_spdif_stream_put
2262 },
2263 {
2264 	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
2265 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2266 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
2267 	.info =		snd_rme96_control_spdif_mask_info,
2268 	.get =		snd_rme96_control_spdif_mask_get,
2269 	.private_value = IEC958_AES0_NONAUDIO |
2270 			IEC958_AES0_PROFESSIONAL |
2271 			IEC958_AES0_CON_EMPHASIS
2272 },
2273 {
2274 	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
2275 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2276 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
2277 	.info =		snd_rme96_control_spdif_mask_info,
2278 	.get =		snd_rme96_control_spdif_mask_get,
2279 	.private_value = IEC958_AES0_NONAUDIO |
2280 			IEC958_AES0_PROFESSIONAL |
2281 			IEC958_AES0_PRO_EMPHASIS
2282 },
2283 {
2284         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2285 	.name =         "Input Connector",
2286 	.info =         snd_rme96_info_inputtype_control,
2287 	.get =          snd_rme96_get_inputtype_control,
2288 	.put =          snd_rme96_put_inputtype_control
2289 },
2290 {
2291         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2292 	.name =         "Loopback Input",
2293 	.info =         snd_rme96_info_loopback_control,
2294 	.get =          snd_rme96_get_loopback_control,
2295 	.put =          snd_rme96_put_loopback_control
2296 },
2297 {
2298         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2299 	.name =         "Sample Clock Source",
2300 	.info =         snd_rme96_info_clockmode_control,
2301 	.get =          snd_rme96_get_clockmode_control,
2302 	.put =          snd_rme96_put_clockmode_control
2303 },
2304 {
2305         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2306 	.name =         "Monitor Tracks",
2307 	.info =         snd_rme96_info_montracks_control,
2308 	.get =          snd_rme96_get_montracks_control,
2309 	.put =          snd_rme96_put_montracks_control
2310 },
2311 {
2312         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2313 	.name =         "Attenuation",
2314 	.info =         snd_rme96_info_attenuation_control,
2315 	.get =          snd_rme96_get_attenuation_control,
2316 	.put =          snd_rme96_put_attenuation_control
2317 },
2318 {
2319         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2320 	.name =         "DAC Playback Volume",
2321 	.info =         snd_rme96_dac_volume_info,
2322 	.get =          snd_rme96_dac_volume_get,
2323 	.put =          snd_rme96_dac_volume_put
2324 }
2325 };
2326 
2327 static int
2328 snd_rme96_create_switches(struct snd_card *card,
2329 			  struct rme96 *rme96)
2330 {
2331 	int idx, err;
2332 	struct snd_kcontrol *kctl;
2333 
2334 	for (idx = 0; idx < 7; idx++) {
2335 		if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme96_controls[idx], rme96))) < 0)
2336 			return err;
2337 		if (idx == 1)	/* IEC958 (S/PDIF) Stream */
2338 			rme96->spdif_ctl = kctl;
2339 	}
2340 
2341 	if (RME96_HAS_ANALOG_OUT(rme96)) {
2342 		for (idx = 7; idx < 10; idx++)
2343 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_rme96_controls[idx], rme96))) < 0)
2344 				return err;
2345 	}
2346 
2347 	return 0;
2348 }
2349 
2350 /*
2351  * Card initialisation
2352  */
2353 
2354 #ifdef CONFIG_PM_SLEEP
2355 
2356 static int rme96_suspend(struct device *dev)
2357 {
2358 	struct snd_card *card = dev_get_drvdata(dev);
2359 	struct rme96 *rme96 = card->private_data;
2360 
2361 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2362 	snd_pcm_suspend(rme96->playback_substream);
2363 	snd_pcm_suspend(rme96->capture_substream);
2364 
2365 	/* save capture & playback pointers */
2366 	rme96->playback_pointer = readl(rme96->iobase + RME96_IO_GET_PLAY_POS)
2367 				  & RME96_RCR_AUDIO_ADDR_MASK;
2368 	rme96->capture_pointer = readl(rme96->iobase + RME96_IO_GET_REC_POS)
2369 				 & RME96_RCR_AUDIO_ADDR_MASK;
2370 
2371 	/* save playback and capture buffers */
2372 	memcpy_fromio(rme96->playback_suspend_buffer,
2373 		      rme96->iobase + RME96_IO_PLAY_BUFFER, RME96_BUFFER_SIZE);
2374 	memcpy_fromio(rme96->capture_suspend_buffer,
2375 		      rme96->iobase + RME96_IO_REC_BUFFER, RME96_BUFFER_SIZE);
2376 
2377 	/* disable the DAC  */
2378 	rme96->areg &= ~RME96_AR_DAC_EN;
2379 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
2380 	return 0;
2381 }
2382 
2383 static int rme96_resume(struct device *dev)
2384 {
2385 	struct snd_card *card = dev_get_drvdata(dev);
2386 	struct rme96 *rme96 = card->private_data;
2387 
2388 	/* reset playback and record buffer pointers */
2389 	writel(0, rme96->iobase + RME96_IO_SET_PLAY_POS
2390 		  + rme96->playback_pointer);
2391 	writel(0, rme96->iobase + RME96_IO_SET_REC_POS
2392 		  + rme96->capture_pointer);
2393 
2394 	/* restore playback and capture buffers */
2395 	memcpy_toio(rme96->iobase + RME96_IO_PLAY_BUFFER,
2396 		    rme96->playback_suspend_buffer, RME96_BUFFER_SIZE);
2397 	memcpy_toio(rme96->iobase + RME96_IO_REC_BUFFER,
2398 		    rme96->capture_suspend_buffer, RME96_BUFFER_SIZE);
2399 
2400 	/* reset the ADC */
2401 	writel(rme96->areg | RME96_AR_PD2,
2402 	       rme96->iobase + RME96_IO_ADDITIONAL_REG);
2403 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
2404 
2405 	/* reset and enable DAC, restore analog volume */
2406 	snd_rme96_reset_dac(rme96);
2407 	rme96->areg |= RME96_AR_DAC_EN;
2408 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
2409 	if (RME96_HAS_ANALOG_OUT(rme96)) {
2410 		usleep_range(3000, 10000);
2411 		snd_rme96_apply_dac_volume(rme96);
2412 	}
2413 
2414 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2415 
2416 	return 0;
2417 }
2418 
2419 static SIMPLE_DEV_PM_OPS(rme96_pm, rme96_suspend, rme96_resume);
2420 #define RME96_PM_OPS	&rme96_pm
2421 #else
2422 #define RME96_PM_OPS	NULL
2423 #endif /* CONFIG_PM_SLEEP */
2424 
2425 static void snd_rme96_card_free(struct snd_card *card)
2426 {
2427 	snd_rme96_free(card->private_data);
2428 }
2429 
2430 static int
2431 snd_rme96_probe(struct pci_dev *pci,
2432 		const struct pci_device_id *pci_id)
2433 {
2434 	static int dev;
2435 	struct rme96 *rme96;
2436 	struct snd_card *card;
2437 	int err;
2438 	u8 val;
2439 
2440 	if (dev >= SNDRV_CARDS) {
2441 		return -ENODEV;
2442 	}
2443 	if (!enable[dev]) {
2444 		dev++;
2445 		return -ENOENT;
2446 	}
2447 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2448 			   sizeof(struct rme96), &card);
2449 	if (err < 0)
2450 		return err;
2451 	card->private_free = snd_rme96_card_free;
2452 	rme96 = card->private_data;
2453 	rme96->card = card;
2454 	rme96->pci = pci;
2455 	if ((err = snd_rme96_create(rme96)) < 0) {
2456 		snd_card_free(card);
2457 		return err;
2458 	}
2459 
2460 #ifdef CONFIG_PM_SLEEP
2461 	rme96->playback_suspend_buffer = vmalloc(RME96_BUFFER_SIZE);
2462 	if (!rme96->playback_suspend_buffer) {
2463 		dev_err(card->dev,
2464 			   "Failed to allocate playback suspend buffer!\n");
2465 		snd_card_free(card);
2466 		return -ENOMEM;
2467 	}
2468 	rme96->capture_suspend_buffer = vmalloc(RME96_BUFFER_SIZE);
2469 	if (!rme96->capture_suspend_buffer) {
2470 		dev_err(card->dev,
2471 			   "Failed to allocate capture suspend buffer!\n");
2472 		snd_card_free(card);
2473 		return -ENOMEM;
2474 	}
2475 #endif
2476 
2477 	strcpy(card->driver, "Digi96");
2478 	switch (rme96->pci->device) {
2479 	case PCI_DEVICE_ID_RME_DIGI96:
2480 		strcpy(card->shortname, "RME Digi96");
2481 		break;
2482 	case PCI_DEVICE_ID_RME_DIGI96_8:
2483 		strcpy(card->shortname, "RME Digi96/8");
2484 		break;
2485 	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
2486 		strcpy(card->shortname, "RME Digi96/8 PRO");
2487 		break;
2488 	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
2489 		pci_read_config_byte(rme96->pci, 8, &val);
2490 		if (val < 5) {
2491 			strcpy(card->shortname, "RME Digi96/8 PAD");
2492 		} else {
2493 			strcpy(card->shortname, "RME Digi96/8 PST");
2494 		}
2495 		break;
2496 	}
2497 	sprintf(card->longname, "%s at 0x%lx, irq %d", card->shortname,
2498 		rme96->port, rme96->irq);
2499 
2500 	if ((err = snd_card_register(card)) < 0) {
2501 		snd_card_free(card);
2502 		return err;
2503 	}
2504 	pci_set_drvdata(pci, card);
2505 	dev++;
2506 	return 0;
2507 }
2508 
2509 static void snd_rme96_remove(struct pci_dev *pci)
2510 {
2511 	snd_card_free(pci_get_drvdata(pci));
2512 }
2513 
2514 static struct pci_driver rme96_driver = {
2515 	.name = KBUILD_MODNAME,
2516 	.id_table = snd_rme96_ids,
2517 	.probe = snd_rme96_probe,
2518 	.remove = snd_rme96_remove,
2519 	.driver = {
2520 		.pm = RME96_PM_OPS,
2521 	},
2522 };
2523 
2524 module_pci_driver(rme96_driver);
2525