xref: /openbmc/linux/sound/pci/rme96.c (revision ee89bd6b)
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 
32 #include <sound/core.h>
33 #include <sound/info.h>
34 #include <sound/control.h>
35 #include <sound/pcm.h>
36 #include <sound/pcm_params.h>
37 #include <sound/asoundef.h>
38 #include <sound/initval.h>
39 
40 #include <asm/io.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 
202 struct rme96 {
203 	spinlock_t    lock;
204 	int irq;
205 	unsigned long port;
206 	void __iomem *iobase;
207 
208 	u32 wcreg;    /* cached write control register value */
209 	u32 wcreg_spdif;		/* S/PDIF setup */
210 	u32 wcreg_spdif_stream;		/* S/PDIF setup (temporary) */
211 	u32 rcreg;    /* cached read control register value */
212 	u32 areg;     /* cached additional register value */
213 	u16 vol[2]; /* cached volume of analog output */
214 
215 	u8 rev; /* card revision number */
216 
217 	struct snd_pcm_substream *playback_substream;
218 	struct snd_pcm_substream *capture_substream;
219 
220 	int playback_frlog; /* log2 of framesize */
221 	int capture_frlog;
222 
223         size_t playback_periodsize; /* in bytes, zero if not used */
224 	size_t capture_periodsize; /* in bytes, zero if not used */
225 
226 	struct snd_card *card;
227 	struct snd_pcm *spdif_pcm;
228 	struct snd_pcm *adat_pcm;
229 	struct pci_dev     *pci;
230 	struct snd_kcontrol   *spdif_ctl;
231 };
232 
233 static DEFINE_PCI_DEVICE_TABLE(snd_rme96_ids) = {
234 	{ PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96), 0, },
235 	{ PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96_8), 0, },
236 	{ PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96_8_PRO), 0, },
237 	{ PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST), 0, },
238 	{ 0, }
239 };
240 
241 MODULE_DEVICE_TABLE(pci, snd_rme96_ids);
242 
243 #define RME96_ISPLAYING(rme96) ((rme96)->wcreg & RME96_WCR_START)
244 #define RME96_ISRECORDING(rme96) ((rme96)->wcreg & RME96_WCR_START_2)
245 #define	RME96_HAS_ANALOG_IN(rme96) ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST)
246 #define	RME96_HAS_ANALOG_OUT(rme96) ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PRO || \
247 				     (rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST)
248 #define	RME96_DAC_IS_1852(rme96) (RME96_HAS_ANALOG_OUT(rme96) && (rme96)->rev >= 4)
249 #define	RME96_DAC_IS_1855(rme96) (((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST && (rme96)->rev < 4) || \
250 			          ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PRO && (rme96)->rev == 2))
251 #define	RME96_185X_MAX_OUT(rme96) ((1 << (RME96_DAC_IS_1852(rme96) ? RME96_AD1852_VOL_BITS : RME96_AD1855_VOL_BITS)) - 1)
252 
253 static int
254 snd_rme96_playback_prepare(struct snd_pcm_substream *substream);
255 
256 static int
257 snd_rme96_capture_prepare(struct snd_pcm_substream *substream);
258 
259 static int
260 snd_rme96_playback_trigger(struct snd_pcm_substream *substream,
261 			   int cmd);
262 
263 static int
264 snd_rme96_capture_trigger(struct snd_pcm_substream *substream,
265 			  int cmd);
266 
267 static snd_pcm_uframes_t
268 snd_rme96_playback_pointer(struct snd_pcm_substream *substream);
269 
270 static snd_pcm_uframes_t
271 snd_rme96_capture_pointer(struct snd_pcm_substream *substream);
272 
273 static void snd_rme96_proc_init(struct rme96 *rme96);
274 
275 static int
276 snd_rme96_create_switches(struct snd_card *card,
277 			  struct rme96 *rme96);
278 
279 static int
280 snd_rme96_getinputtype(struct rme96 *rme96);
281 
282 static inline unsigned int
283 snd_rme96_playback_ptr(struct rme96 *rme96)
284 {
285 	return (readl(rme96->iobase + RME96_IO_GET_PLAY_POS)
286 		& RME96_RCR_AUDIO_ADDR_MASK) >> rme96->playback_frlog;
287 }
288 
289 static inline unsigned int
290 snd_rme96_capture_ptr(struct rme96 *rme96)
291 {
292 	return (readl(rme96->iobase + RME96_IO_GET_REC_POS)
293 		& RME96_RCR_AUDIO_ADDR_MASK) >> rme96->capture_frlog;
294 }
295 
296 static int
297 snd_rme96_playback_silence(struct snd_pcm_substream *substream,
298 			   int channel, /* not used (interleaved data) */
299 			   snd_pcm_uframes_t pos,
300 			   snd_pcm_uframes_t count)
301 {
302 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
303 	count <<= rme96->playback_frlog;
304 	pos <<= rme96->playback_frlog;
305 	memset_io(rme96->iobase + RME96_IO_PLAY_BUFFER + pos,
306 		  0, count);
307 	return 0;
308 }
309 
310 static int
311 snd_rme96_playback_copy(struct snd_pcm_substream *substream,
312 			int channel, /* not used (interleaved data) */
313 			snd_pcm_uframes_t pos,
314 			void __user *src,
315 			snd_pcm_uframes_t count)
316 {
317 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
318 	count <<= rme96->playback_frlog;
319 	pos <<= rme96->playback_frlog;
320 	copy_from_user_toio(rme96->iobase + RME96_IO_PLAY_BUFFER + pos, src,
321 			    count);
322 	return 0;
323 }
324 
325 static int
326 snd_rme96_capture_copy(struct snd_pcm_substream *substream,
327 		       int channel, /* not used (interleaved data) */
328 		       snd_pcm_uframes_t pos,
329 		       void __user *dst,
330 		       snd_pcm_uframes_t count)
331 {
332 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
333 	count <<= rme96->capture_frlog;
334 	pos <<= rme96->capture_frlog;
335 	copy_to_user_fromio(dst, rme96->iobase + RME96_IO_REC_BUFFER + pos,
336 			    count);
337         return 0;
338 }
339 
340 /*
341  * Digital output capabilities (S/PDIF)
342  */
343 static struct snd_pcm_hardware snd_rme96_playback_spdif_info =
344 {
345 	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
346 			      SNDRV_PCM_INFO_MMAP_VALID |
347 			      SNDRV_PCM_INFO_INTERLEAVED |
348 			      SNDRV_PCM_INFO_PAUSE),
349 	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
350 			      SNDRV_PCM_FMTBIT_S32_LE),
351 	.rates =	     (SNDRV_PCM_RATE_32000 |
352 			      SNDRV_PCM_RATE_44100 |
353 			      SNDRV_PCM_RATE_48000 |
354 			      SNDRV_PCM_RATE_64000 |
355 			      SNDRV_PCM_RATE_88200 |
356 			      SNDRV_PCM_RATE_96000),
357 	.rate_min =	     32000,
358 	.rate_max =	     96000,
359 	.channels_min =	     2,
360 	.channels_max =	     2,
361 	.buffer_bytes_max =  RME96_BUFFER_SIZE,
362 	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
363 	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
364 	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
365 	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
366 	.fifo_size =	     0,
367 };
368 
369 /*
370  * Digital input capabilities (S/PDIF)
371  */
372 static struct snd_pcm_hardware snd_rme96_capture_spdif_info =
373 {
374 	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
375 			      SNDRV_PCM_INFO_MMAP_VALID |
376 			      SNDRV_PCM_INFO_INTERLEAVED |
377 			      SNDRV_PCM_INFO_PAUSE),
378 	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
379 			      SNDRV_PCM_FMTBIT_S32_LE),
380 	.rates =	     (SNDRV_PCM_RATE_32000 |
381 			      SNDRV_PCM_RATE_44100 |
382 			      SNDRV_PCM_RATE_48000 |
383 			      SNDRV_PCM_RATE_64000 |
384 			      SNDRV_PCM_RATE_88200 |
385 			      SNDRV_PCM_RATE_96000),
386 	.rate_min =	     32000,
387 	.rate_max =	     96000,
388 	.channels_min =	     2,
389 	.channels_max =	     2,
390 	.buffer_bytes_max =  RME96_BUFFER_SIZE,
391 	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
392 	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
393 	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
394 	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
395 	.fifo_size =	     0,
396 };
397 
398 /*
399  * Digital output capabilities (ADAT)
400  */
401 static struct snd_pcm_hardware snd_rme96_playback_adat_info =
402 {
403 	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
404 			      SNDRV_PCM_INFO_MMAP_VALID |
405 			      SNDRV_PCM_INFO_INTERLEAVED |
406 			      SNDRV_PCM_INFO_PAUSE),
407 	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
408 			      SNDRV_PCM_FMTBIT_S32_LE),
409 	.rates =             (SNDRV_PCM_RATE_44100 |
410 			      SNDRV_PCM_RATE_48000),
411 	.rate_min =          44100,
412 	.rate_max =          48000,
413 	.channels_min =      8,
414 	.channels_max =	     8,
415 	.buffer_bytes_max =  RME96_BUFFER_SIZE,
416 	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
417 	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
418 	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
419 	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
420 	.fifo_size =	     0,
421 };
422 
423 /*
424  * Digital input capabilities (ADAT)
425  */
426 static struct snd_pcm_hardware snd_rme96_capture_adat_info =
427 {
428 	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
429 			      SNDRV_PCM_INFO_MMAP_VALID |
430 			      SNDRV_PCM_INFO_INTERLEAVED |
431 			      SNDRV_PCM_INFO_PAUSE),
432 	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
433 			      SNDRV_PCM_FMTBIT_S32_LE),
434 	.rates =	     (SNDRV_PCM_RATE_44100 |
435 			      SNDRV_PCM_RATE_48000),
436 	.rate_min =          44100,
437 	.rate_max =          48000,
438 	.channels_min =      8,
439 	.channels_max =	     8,
440 	.buffer_bytes_max =  RME96_BUFFER_SIZE,
441 	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
442 	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
443 	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
444 	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
445 	.fifo_size =         0,
446 };
447 
448 /*
449  * The CDATA, CCLK and CLATCH bits can be used to write to the SPI interface
450  * of the AD1852 or AD1852 D/A converter on the board.  CDATA must be set up
451  * on the falling edge of CCLK and be stable on the rising edge.  The rising
452  * edge of CLATCH after the last data bit clocks in the whole data word.
453  * A fast processor could probably drive the SPI interface faster than the
454  * DAC can handle (3MHz for the 1855, unknown for the 1852).  The udelay(1)
455  * limits the data rate to 500KHz and only causes a delay of 33 microsecs.
456  *
457  * NOTE: increased delay from 1 to 10, since there where problems setting
458  * the volume.
459  */
460 static void
461 snd_rme96_write_SPI(struct rme96 *rme96, u16 val)
462 {
463 	int i;
464 
465 	for (i = 0; i < 16; i++) {
466 		if (val & 0x8000) {
467 			rme96->areg |= RME96_AR_CDATA;
468 		} else {
469 			rme96->areg &= ~RME96_AR_CDATA;
470 		}
471 		rme96->areg &= ~(RME96_AR_CCLK | RME96_AR_CLATCH);
472 		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
473 		udelay(10);
474 		rme96->areg |= RME96_AR_CCLK;
475 		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
476 		udelay(10);
477 		val <<= 1;
478 	}
479 	rme96->areg &= ~(RME96_AR_CCLK | RME96_AR_CDATA);
480 	rme96->areg |= RME96_AR_CLATCH;
481 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
482 	udelay(10);
483 	rme96->areg &= ~RME96_AR_CLATCH;
484 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
485 }
486 
487 static void
488 snd_rme96_apply_dac_volume(struct rme96 *rme96)
489 {
490 	if (RME96_DAC_IS_1852(rme96)) {
491 		snd_rme96_write_SPI(rme96, (rme96->vol[0] << 2) | 0x0);
492 		snd_rme96_write_SPI(rme96, (rme96->vol[1] << 2) | 0x2);
493 	} else if (RME96_DAC_IS_1855(rme96)) {
494 		snd_rme96_write_SPI(rme96, (rme96->vol[0] & 0x3FF) | 0x000);
495 		snd_rme96_write_SPI(rme96, (rme96->vol[1] & 0x3FF) | 0x400);
496 	}
497 }
498 
499 static void
500 snd_rme96_reset_dac(struct rme96 *rme96)
501 {
502 	writel(rme96->wcreg | RME96_WCR_PD,
503 	       rme96->iobase + RME96_IO_CONTROL_REGISTER);
504 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
505 }
506 
507 static int
508 snd_rme96_getmontracks(struct rme96 *rme96)
509 {
510 	return ((rme96->wcreg >> RME96_WCR_BITPOS_MONITOR_0) & 1) +
511 		(((rme96->wcreg >> RME96_WCR_BITPOS_MONITOR_1) & 1) << 1);
512 }
513 
514 static int
515 snd_rme96_setmontracks(struct rme96 *rme96,
516 		       int montracks)
517 {
518 	if (montracks & 1) {
519 		rme96->wcreg |= RME96_WCR_MONITOR_0;
520 	} else {
521 		rme96->wcreg &= ~RME96_WCR_MONITOR_0;
522 	}
523 	if (montracks & 2) {
524 		rme96->wcreg |= RME96_WCR_MONITOR_1;
525 	} else {
526 		rme96->wcreg &= ~RME96_WCR_MONITOR_1;
527 	}
528 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
529 	return 0;
530 }
531 
532 static int
533 snd_rme96_getattenuation(struct rme96 *rme96)
534 {
535 	return ((rme96->wcreg >> RME96_WCR_BITPOS_GAIN_0) & 1) +
536 		(((rme96->wcreg >> RME96_WCR_BITPOS_GAIN_1) & 1) << 1);
537 }
538 
539 static int
540 snd_rme96_setattenuation(struct rme96 *rme96,
541 			 int attenuation)
542 {
543 	switch (attenuation) {
544 	case 0:
545 		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_GAIN_0) &
546 			~RME96_WCR_GAIN_1;
547 		break;
548 	case 1:
549 		rme96->wcreg = (rme96->wcreg | RME96_WCR_GAIN_0) &
550 			~RME96_WCR_GAIN_1;
551 		break;
552 	case 2:
553 		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_GAIN_0) |
554 			RME96_WCR_GAIN_1;
555 		break;
556 	case 3:
557 		rme96->wcreg = (rme96->wcreg | RME96_WCR_GAIN_0) |
558 			RME96_WCR_GAIN_1;
559 		break;
560 	default:
561 		return -EINVAL;
562 	}
563 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
564 	return 0;
565 }
566 
567 static int
568 snd_rme96_capture_getrate(struct rme96 *rme96,
569 			  int *is_adat)
570 {
571 	int n, rate;
572 
573 	*is_adat = 0;
574 	if (rme96->areg & RME96_AR_ANALOG) {
575 		/* Analog input, overrides S/PDIF setting */
576 		n = ((rme96->areg >> RME96_AR_BITPOS_F0) & 1) +
577 			(((rme96->areg >> RME96_AR_BITPOS_F1) & 1) << 1);
578 		switch (n) {
579 		case 1:
580 			rate = 32000;
581 			break;
582 		case 2:
583 			rate = 44100;
584 			break;
585 		case 3:
586 			rate = 48000;
587 			break;
588 		default:
589 			return -1;
590 		}
591 		return (rme96->areg & RME96_AR_BITPOS_F2) ? rate << 1 : rate;
592 	}
593 
594 	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
595 	if (rme96->rcreg & RME96_RCR_LOCK) {
596 		/* ADAT rate */
597 		*is_adat = 1;
598 		if (rme96->rcreg & RME96_RCR_T_OUT) {
599 			return 48000;
600 		}
601 		return 44100;
602 	}
603 
604 	if (rme96->rcreg & RME96_RCR_VERF) {
605 		return -1;
606 	}
607 
608 	/* S/PDIF rate */
609 	n = ((rme96->rcreg >> RME96_RCR_BITPOS_F0) & 1) +
610 		(((rme96->rcreg >> RME96_RCR_BITPOS_F1) & 1) << 1) +
611 		(((rme96->rcreg >> RME96_RCR_BITPOS_F2) & 1) << 2);
612 
613 	switch (n) {
614 	case 0:
615 		if (rme96->rcreg & RME96_RCR_T_OUT) {
616 			return 64000;
617 		}
618 		return -1;
619 	case 3: return 96000;
620 	case 4: return 88200;
621 	case 5: return 48000;
622 	case 6: return 44100;
623 	case 7: return 32000;
624 	default:
625 		break;
626 	}
627 	return -1;
628 }
629 
630 static int
631 snd_rme96_playback_getrate(struct rme96 *rme96)
632 {
633 	int rate, dummy;
634 
635 	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
636             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
637 	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
638 	{
639 	        /* slave clock */
640 	        return rate;
641 	}
642 	rate = ((rme96->wcreg >> RME96_WCR_BITPOS_FREQ_0) & 1) +
643 		(((rme96->wcreg >> RME96_WCR_BITPOS_FREQ_1) & 1) << 1);
644 	switch (rate) {
645 	case 1:
646 		rate = 32000;
647 		break;
648 	case 2:
649 		rate = 44100;
650 		break;
651 	case 3:
652 		rate = 48000;
653 		break;
654 	default:
655 		return -1;
656 	}
657 	return (rme96->wcreg & RME96_WCR_DS) ? rate << 1 : rate;
658 }
659 
660 static int
661 snd_rme96_playback_setrate(struct rme96 *rme96,
662 			   int rate)
663 {
664 	int ds;
665 
666 	ds = rme96->wcreg & RME96_WCR_DS;
667 	switch (rate) {
668 	case 32000:
669 		rme96->wcreg &= ~RME96_WCR_DS;
670 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) &
671 			~RME96_WCR_FREQ_1;
672 		break;
673 	case 44100:
674 		rme96->wcreg &= ~RME96_WCR_DS;
675 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_1) &
676 			~RME96_WCR_FREQ_0;
677 		break;
678 	case 48000:
679 		rme96->wcreg &= ~RME96_WCR_DS;
680 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) |
681 			RME96_WCR_FREQ_1;
682 		break;
683 	case 64000:
684 		rme96->wcreg |= RME96_WCR_DS;
685 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) &
686 			~RME96_WCR_FREQ_1;
687 		break;
688 	case 88200:
689 		rme96->wcreg |= RME96_WCR_DS;
690 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_1) &
691 			~RME96_WCR_FREQ_0;
692 		break;
693 	case 96000:
694 		rme96->wcreg |= RME96_WCR_DS;
695 		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) |
696 			RME96_WCR_FREQ_1;
697 		break;
698 	default:
699 		return -EINVAL;
700 	}
701 	if ((!ds && rme96->wcreg & RME96_WCR_DS) ||
702 	    (ds && !(rme96->wcreg & RME96_WCR_DS)))
703 	{
704 		/* change to/from double-speed: reset the DAC (if available) */
705 		snd_rme96_reset_dac(rme96);
706 	} else {
707 		writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
708 	}
709 	return 0;
710 }
711 
712 static int
713 snd_rme96_capture_analog_setrate(struct rme96 *rme96,
714 				 int rate)
715 {
716 	switch (rate) {
717 	case 32000:
718 		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) &
719 			       ~RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
720 		break;
721 	case 44100:
722 		rme96->areg = ((rme96->areg & ~RME96_AR_FREQPAD_0) |
723 			       RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
724 		break;
725 	case 48000:
726 		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) |
727 			       RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
728 		break;
729 	case 64000:
730 		if (rme96->rev < 4) {
731 			return -EINVAL;
732 		}
733 		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) &
734 			       ~RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
735 		break;
736 	case 88200:
737 		if (rme96->rev < 4) {
738 			return -EINVAL;
739 		}
740 		rme96->areg = ((rme96->areg & ~RME96_AR_FREQPAD_0) |
741 			       RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
742 		break;
743 	case 96000:
744 		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) |
745 			       RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
746 		break;
747 	default:
748 		return -EINVAL;
749 	}
750 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
751 	return 0;
752 }
753 
754 static int
755 snd_rme96_setclockmode(struct rme96 *rme96,
756 		       int mode)
757 {
758 	switch (mode) {
759 	case RME96_CLOCKMODE_SLAVE:
760 	        /* AutoSync */
761 		rme96->wcreg &= ~RME96_WCR_MASTER;
762 		rme96->areg &= ~RME96_AR_WSEL;
763 		break;
764 	case RME96_CLOCKMODE_MASTER:
765 	        /* Internal */
766 		rme96->wcreg |= RME96_WCR_MASTER;
767 		rme96->areg &= ~RME96_AR_WSEL;
768 		break;
769 	case RME96_CLOCKMODE_WORDCLOCK:
770 		/* Word clock is a master mode */
771 		rme96->wcreg |= RME96_WCR_MASTER;
772 		rme96->areg |= RME96_AR_WSEL;
773 		break;
774 	default:
775 		return -EINVAL;
776 	}
777 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
778 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
779 	return 0;
780 }
781 
782 static int
783 snd_rme96_getclockmode(struct rme96 *rme96)
784 {
785 	if (rme96->areg & RME96_AR_WSEL) {
786 		return RME96_CLOCKMODE_WORDCLOCK;
787 	}
788 	return (rme96->wcreg & RME96_WCR_MASTER) ? RME96_CLOCKMODE_MASTER :
789 		RME96_CLOCKMODE_SLAVE;
790 }
791 
792 static int
793 snd_rme96_setinputtype(struct rme96 *rme96,
794 		       int type)
795 {
796 	int n;
797 
798 	switch (type) {
799 	case RME96_INPUT_OPTICAL:
800 		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_INP_0) &
801 			~RME96_WCR_INP_1;
802 		break;
803 	case RME96_INPUT_COAXIAL:
804 		rme96->wcreg = (rme96->wcreg | RME96_WCR_INP_0) &
805 			~RME96_WCR_INP_1;
806 		break;
807 	case RME96_INPUT_INTERNAL:
808 		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_INP_0) |
809 			RME96_WCR_INP_1;
810 		break;
811 	case RME96_INPUT_XLR:
812 		if ((rme96->pci->device != PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST &&
813 		     rme96->pci->device != PCI_DEVICE_ID_RME_DIGI96_8_PRO) ||
814 		    (rme96->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST &&
815 		     rme96->rev > 4))
816 		{
817 			/* Only Digi96/8 PRO and Digi96/8 PAD supports XLR */
818 			return -EINVAL;
819 		}
820 		rme96->wcreg = (rme96->wcreg | RME96_WCR_INP_0) |
821 			RME96_WCR_INP_1;
822 		break;
823 	case RME96_INPUT_ANALOG:
824 		if (!RME96_HAS_ANALOG_IN(rme96)) {
825 			return -EINVAL;
826 		}
827 		rme96->areg |= RME96_AR_ANALOG;
828 		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
829 		if (rme96->rev < 4) {
830 			/*
831 			 * Revision less than 004 does not support 64 and
832 			 * 88.2 kHz
833 			 */
834 			if (snd_rme96_capture_getrate(rme96, &n) == 88200) {
835 				snd_rme96_capture_analog_setrate(rme96, 44100);
836 			}
837 			if (snd_rme96_capture_getrate(rme96, &n) == 64000) {
838 				snd_rme96_capture_analog_setrate(rme96, 32000);
839 			}
840 		}
841 		return 0;
842 	default:
843 		return -EINVAL;
844 	}
845 	if (type != RME96_INPUT_ANALOG && RME96_HAS_ANALOG_IN(rme96)) {
846 		rme96->areg &= ~RME96_AR_ANALOG;
847 		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
848 	}
849 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
850 	return 0;
851 }
852 
853 static int
854 snd_rme96_getinputtype(struct rme96 *rme96)
855 {
856 	if (rme96->areg & RME96_AR_ANALOG) {
857 		return RME96_INPUT_ANALOG;
858 	}
859 	return ((rme96->wcreg >> RME96_WCR_BITPOS_INP_0) & 1) +
860 		(((rme96->wcreg >> RME96_WCR_BITPOS_INP_1) & 1) << 1);
861 }
862 
863 static void
864 snd_rme96_setframelog(struct rme96 *rme96,
865 		      int n_channels,
866 		      int is_playback)
867 {
868 	int frlog;
869 
870 	if (n_channels == 2) {
871 		frlog = 1;
872 	} else {
873 		/* assume 8 channels */
874 		frlog = 3;
875 	}
876 	if (is_playback) {
877 		frlog += (rme96->wcreg & RME96_WCR_MODE24) ? 2 : 1;
878 		rme96->playback_frlog = frlog;
879 	} else {
880 		frlog += (rme96->wcreg & RME96_WCR_MODE24_2) ? 2 : 1;
881 		rme96->capture_frlog = frlog;
882 	}
883 }
884 
885 static int
886 snd_rme96_playback_setformat(struct rme96 *rme96,
887 			     int format)
888 {
889 	switch (format) {
890 	case SNDRV_PCM_FORMAT_S16_LE:
891 		rme96->wcreg &= ~RME96_WCR_MODE24;
892 		break;
893 	case SNDRV_PCM_FORMAT_S32_LE:
894 		rme96->wcreg |= RME96_WCR_MODE24;
895 		break;
896 	default:
897 		return -EINVAL;
898 	}
899 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
900 	return 0;
901 }
902 
903 static int
904 snd_rme96_capture_setformat(struct rme96 *rme96,
905 			    int format)
906 {
907 	switch (format) {
908 	case SNDRV_PCM_FORMAT_S16_LE:
909 		rme96->wcreg &= ~RME96_WCR_MODE24_2;
910 		break;
911 	case SNDRV_PCM_FORMAT_S32_LE:
912 		rme96->wcreg |= RME96_WCR_MODE24_2;
913 		break;
914 	default:
915 		return -EINVAL;
916 	}
917 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
918 	return 0;
919 }
920 
921 static void
922 snd_rme96_set_period_properties(struct rme96 *rme96,
923 				size_t period_bytes)
924 {
925 	switch (period_bytes) {
926 	case RME96_LARGE_BLOCK_SIZE:
927 		rme96->wcreg &= ~RME96_WCR_ISEL;
928 		break;
929 	case RME96_SMALL_BLOCK_SIZE:
930 		rme96->wcreg |= RME96_WCR_ISEL;
931 		break;
932 	default:
933 		snd_BUG();
934 		break;
935 	}
936 	rme96->wcreg &= ~RME96_WCR_IDIS;
937 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
938 }
939 
940 static int
941 snd_rme96_playback_hw_params(struct snd_pcm_substream *substream,
942 			     struct snd_pcm_hw_params *params)
943 {
944 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
945 	struct snd_pcm_runtime *runtime = substream->runtime;
946 	int err, rate, dummy;
947 
948 	runtime->dma_area = (void __force *)(rme96->iobase +
949 					     RME96_IO_PLAY_BUFFER);
950 	runtime->dma_addr = rme96->port + RME96_IO_PLAY_BUFFER;
951 	runtime->dma_bytes = RME96_BUFFER_SIZE;
952 
953 	spin_lock_irq(&rme96->lock);
954 	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
955             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
956 	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
957 	{
958                 /* slave clock */
959                 if ((int)params_rate(params) != rate) {
960 			spin_unlock_irq(&rme96->lock);
961 			return -EIO;
962                 }
963 	} else if ((err = snd_rme96_playback_setrate(rme96, params_rate(params))) < 0) {
964 		spin_unlock_irq(&rme96->lock);
965 		return err;
966 	}
967 	if ((err = snd_rme96_playback_setformat(rme96, params_format(params))) < 0) {
968 		spin_unlock_irq(&rme96->lock);
969 		return err;
970 	}
971 	snd_rme96_setframelog(rme96, params_channels(params), 1);
972 	if (rme96->capture_periodsize != 0) {
973 		if (params_period_size(params) << rme96->playback_frlog !=
974 		    rme96->capture_periodsize)
975 		{
976 			spin_unlock_irq(&rme96->lock);
977 			return -EBUSY;
978 		}
979 	}
980 	rme96->playback_periodsize =
981 		params_period_size(params) << rme96->playback_frlog;
982 	snd_rme96_set_period_properties(rme96, rme96->playback_periodsize);
983 	/* S/PDIF setup */
984 	if ((rme96->wcreg & RME96_WCR_ADAT) == 0) {
985 		rme96->wcreg &= ~(RME96_WCR_PRO | RME96_WCR_DOLBY | RME96_WCR_EMP);
986 		writel(rme96->wcreg |= rme96->wcreg_spdif_stream, rme96->iobase + RME96_IO_CONTROL_REGISTER);
987 	}
988 	spin_unlock_irq(&rme96->lock);
989 
990 	return 0;
991 }
992 
993 static int
994 snd_rme96_capture_hw_params(struct snd_pcm_substream *substream,
995 			    struct snd_pcm_hw_params *params)
996 {
997 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
998 	struct snd_pcm_runtime *runtime = substream->runtime;
999 	int err, isadat, rate;
1000 
1001 	runtime->dma_area = (void __force *)(rme96->iobase +
1002 					     RME96_IO_REC_BUFFER);
1003 	runtime->dma_addr = rme96->port + RME96_IO_REC_BUFFER;
1004 	runtime->dma_bytes = RME96_BUFFER_SIZE;
1005 
1006 	spin_lock_irq(&rme96->lock);
1007 	if ((err = snd_rme96_capture_setformat(rme96, params_format(params))) < 0) {
1008 		spin_unlock_irq(&rme96->lock);
1009 		return err;
1010 	}
1011 	if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1012 		if ((err = snd_rme96_capture_analog_setrate(rme96,
1013 							    params_rate(params))) < 0)
1014 		{
1015 			spin_unlock_irq(&rme96->lock);
1016 			return err;
1017 		}
1018 	} else if ((rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0) {
1019                 if ((int)params_rate(params) != rate) {
1020 			spin_unlock_irq(&rme96->lock);
1021 			return -EIO;
1022                 }
1023                 if ((isadat && runtime->hw.channels_min == 2) ||
1024                     (!isadat && runtime->hw.channels_min == 8))
1025                 {
1026 			spin_unlock_irq(&rme96->lock);
1027 			return -EIO;
1028                 }
1029         }
1030 	snd_rme96_setframelog(rme96, params_channels(params), 0);
1031 	if (rme96->playback_periodsize != 0) {
1032 		if (params_period_size(params) << rme96->capture_frlog !=
1033 		    rme96->playback_periodsize)
1034 		{
1035 			spin_unlock_irq(&rme96->lock);
1036 			return -EBUSY;
1037 		}
1038 	}
1039 	rme96->capture_periodsize =
1040 		params_period_size(params) << rme96->capture_frlog;
1041 	snd_rme96_set_period_properties(rme96, rme96->capture_periodsize);
1042 	spin_unlock_irq(&rme96->lock);
1043 
1044 	return 0;
1045 }
1046 
1047 static void
1048 snd_rme96_playback_start(struct rme96 *rme96,
1049 			 int from_pause)
1050 {
1051 	if (!from_pause) {
1052 		writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1053 	}
1054 
1055 	rme96->wcreg |= RME96_WCR_START;
1056 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1057 }
1058 
1059 static void
1060 snd_rme96_capture_start(struct rme96 *rme96,
1061 			int from_pause)
1062 {
1063 	if (!from_pause) {
1064 		writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1065 	}
1066 
1067 	rme96->wcreg |= RME96_WCR_START_2;
1068 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1069 }
1070 
1071 static void
1072 snd_rme96_playback_stop(struct rme96 *rme96)
1073 {
1074 	/*
1075 	 * Check if there is an unconfirmed IRQ, if so confirm it, or else
1076 	 * the hardware will not stop generating interrupts
1077 	 */
1078 	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1079 	if (rme96->rcreg & RME96_RCR_IRQ) {
1080 		writel(0, rme96->iobase + RME96_IO_CONFIRM_PLAY_IRQ);
1081 	}
1082 	rme96->wcreg &= ~RME96_WCR_START;
1083 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1084 }
1085 
1086 static void
1087 snd_rme96_capture_stop(struct rme96 *rme96)
1088 {
1089 	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1090 	if (rme96->rcreg & RME96_RCR_IRQ_2) {
1091 		writel(0, rme96->iobase + RME96_IO_CONFIRM_REC_IRQ);
1092 	}
1093 	rme96->wcreg &= ~RME96_WCR_START_2;
1094 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1095 }
1096 
1097 static irqreturn_t
1098 snd_rme96_interrupt(int irq,
1099 		    void *dev_id)
1100 {
1101 	struct rme96 *rme96 = (struct rme96 *)dev_id;
1102 
1103 	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1104 	/* fastpath out, to ease interrupt sharing */
1105 	if (!((rme96->rcreg & RME96_RCR_IRQ) ||
1106 	      (rme96->rcreg & RME96_RCR_IRQ_2)))
1107 	{
1108 		return IRQ_NONE;
1109 	}
1110 
1111 	if (rme96->rcreg & RME96_RCR_IRQ) {
1112 		/* playback */
1113                 snd_pcm_period_elapsed(rme96->playback_substream);
1114 		writel(0, rme96->iobase + RME96_IO_CONFIRM_PLAY_IRQ);
1115 	}
1116 	if (rme96->rcreg & RME96_RCR_IRQ_2) {
1117 		/* capture */
1118 		snd_pcm_period_elapsed(rme96->capture_substream);
1119 		writel(0, rme96->iobase + RME96_IO_CONFIRM_REC_IRQ);
1120 	}
1121 	return IRQ_HANDLED;
1122 }
1123 
1124 static unsigned int period_bytes[] = { RME96_SMALL_BLOCK_SIZE, RME96_LARGE_BLOCK_SIZE };
1125 
1126 static struct snd_pcm_hw_constraint_list hw_constraints_period_bytes = {
1127 	.count = ARRAY_SIZE(period_bytes),
1128 	.list = period_bytes,
1129 	.mask = 0
1130 };
1131 
1132 static void
1133 rme96_set_buffer_size_constraint(struct rme96 *rme96,
1134 				 struct snd_pcm_runtime *runtime)
1135 {
1136 	unsigned int size;
1137 
1138 	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1139 				     RME96_BUFFER_SIZE, RME96_BUFFER_SIZE);
1140 	if ((size = rme96->playback_periodsize) != 0 ||
1141 	    (size = rme96->capture_periodsize) != 0)
1142 		snd_pcm_hw_constraint_minmax(runtime,
1143 					     SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1144 					     size, size);
1145 	else
1146 		snd_pcm_hw_constraint_list(runtime, 0,
1147 					   SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1148 					   &hw_constraints_period_bytes);
1149 }
1150 
1151 static int
1152 snd_rme96_playback_spdif_open(struct snd_pcm_substream *substream)
1153 {
1154         int rate, dummy;
1155 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1156 	struct snd_pcm_runtime *runtime = substream->runtime;
1157 
1158 	spin_lock_irq(&rme96->lock);
1159         if (rme96->playback_substream != NULL) {
1160 		spin_unlock_irq(&rme96->lock);
1161                 return -EBUSY;
1162         }
1163 	rme96->wcreg &= ~RME96_WCR_ADAT;
1164 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1165 	rme96->playback_substream = substream;
1166 	spin_unlock_irq(&rme96->lock);
1167 
1168 	runtime->hw = snd_rme96_playback_spdif_info;
1169 	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
1170             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1171 	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
1172 	{
1173                 /* slave clock */
1174                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1175                 runtime->hw.rate_min = rate;
1176                 runtime->hw.rate_max = rate;
1177 	}
1178 	rme96_set_buffer_size_constraint(rme96, runtime);
1179 
1180 	rme96->wcreg_spdif_stream = rme96->wcreg_spdif;
1181 	rme96->spdif_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1182 	snd_ctl_notify(rme96->card, SNDRV_CTL_EVENT_MASK_VALUE |
1183 		       SNDRV_CTL_EVENT_MASK_INFO, &rme96->spdif_ctl->id);
1184 	return 0;
1185 }
1186 
1187 static int
1188 snd_rme96_capture_spdif_open(struct snd_pcm_substream *substream)
1189 {
1190         int isadat, rate;
1191 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1192 	struct snd_pcm_runtime *runtime = substream->runtime;
1193 
1194 	runtime->hw = snd_rme96_capture_spdif_info;
1195         if (snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1196             (rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0)
1197         {
1198                 if (isadat) {
1199                         return -EIO;
1200                 }
1201                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1202                 runtime->hw.rate_min = rate;
1203                 runtime->hw.rate_max = rate;
1204         }
1205 
1206 	spin_lock_irq(&rme96->lock);
1207         if (rme96->capture_substream != NULL) {
1208 		spin_unlock_irq(&rme96->lock);
1209                 return -EBUSY;
1210         }
1211 	rme96->capture_substream = substream;
1212 	spin_unlock_irq(&rme96->lock);
1213 
1214 	rme96_set_buffer_size_constraint(rme96, runtime);
1215 	return 0;
1216 }
1217 
1218 static int
1219 snd_rme96_playback_adat_open(struct snd_pcm_substream *substream)
1220 {
1221         int rate, dummy;
1222 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1223 	struct snd_pcm_runtime *runtime = substream->runtime;
1224 
1225 	spin_lock_irq(&rme96->lock);
1226         if (rme96->playback_substream != NULL) {
1227 		spin_unlock_irq(&rme96->lock);
1228                 return -EBUSY;
1229         }
1230 	rme96->wcreg |= RME96_WCR_ADAT;
1231 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1232 	rme96->playback_substream = substream;
1233 	spin_unlock_irq(&rme96->lock);
1234 
1235 	runtime->hw = snd_rme96_playback_adat_info;
1236 	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
1237             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1238 	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
1239 	{
1240                 /* slave clock */
1241                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1242                 runtime->hw.rate_min = rate;
1243                 runtime->hw.rate_max = rate;
1244 	}
1245 	rme96_set_buffer_size_constraint(rme96, runtime);
1246 	return 0;
1247 }
1248 
1249 static int
1250 snd_rme96_capture_adat_open(struct snd_pcm_substream *substream)
1251 {
1252         int isadat, rate;
1253 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1254 	struct snd_pcm_runtime *runtime = substream->runtime;
1255 
1256 	runtime->hw = snd_rme96_capture_adat_info;
1257         if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1258                 /* makes no sense to use analog input. Note that analog
1259                    expension cards AEB4/8-I are RME96_INPUT_INTERNAL */
1260                 return -EIO;
1261         }
1262         if ((rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0) {
1263                 if (!isadat) {
1264                         return -EIO;
1265                 }
1266                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1267                 runtime->hw.rate_min = rate;
1268                 runtime->hw.rate_max = rate;
1269         }
1270 
1271 	spin_lock_irq(&rme96->lock);
1272         if (rme96->capture_substream != NULL) {
1273 		spin_unlock_irq(&rme96->lock);
1274                 return -EBUSY;
1275         }
1276 	rme96->capture_substream = substream;
1277 	spin_unlock_irq(&rme96->lock);
1278 
1279 	rme96_set_buffer_size_constraint(rme96, runtime);
1280 	return 0;
1281 }
1282 
1283 static int
1284 snd_rme96_playback_close(struct snd_pcm_substream *substream)
1285 {
1286 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1287 	int spdif = 0;
1288 
1289 	spin_lock_irq(&rme96->lock);
1290 	if (RME96_ISPLAYING(rme96)) {
1291 		snd_rme96_playback_stop(rme96);
1292 	}
1293 	rme96->playback_substream = NULL;
1294 	rme96->playback_periodsize = 0;
1295 	spdif = (rme96->wcreg & RME96_WCR_ADAT) == 0;
1296 	spin_unlock_irq(&rme96->lock);
1297 	if (spdif) {
1298 		rme96->spdif_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1299 		snd_ctl_notify(rme96->card, SNDRV_CTL_EVENT_MASK_VALUE |
1300 			       SNDRV_CTL_EVENT_MASK_INFO, &rme96->spdif_ctl->id);
1301 	}
1302 	return 0;
1303 }
1304 
1305 static int
1306 snd_rme96_capture_close(struct snd_pcm_substream *substream)
1307 {
1308 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1309 
1310 	spin_lock_irq(&rme96->lock);
1311 	if (RME96_ISRECORDING(rme96)) {
1312 		snd_rme96_capture_stop(rme96);
1313 	}
1314 	rme96->capture_substream = NULL;
1315 	rme96->capture_periodsize = 0;
1316 	spin_unlock_irq(&rme96->lock);
1317 	return 0;
1318 }
1319 
1320 static int
1321 snd_rme96_playback_prepare(struct snd_pcm_substream *substream)
1322 {
1323 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1324 
1325 	spin_lock_irq(&rme96->lock);
1326 	if (RME96_ISPLAYING(rme96)) {
1327 		snd_rme96_playback_stop(rme96);
1328 	}
1329 	writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1330 	spin_unlock_irq(&rme96->lock);
1331 	return 0;
1332 }
1333 
1334 static int
1335 snd_rme96_capture_prepare(struct snd_pcm_substream *substream)
1336 {
1337 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1338 
1339 	spin_lock_irq(&rme96->lock);
1340 	if (RME96_ISRECORDING(rme96)) {
1341 		snd_rme96_capture_stop(rme96);
1342 	}
1343 	writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1344 	spin_unlock_irq(&rme96->lock);
1345 	return 0;
1346 }
1347 
1348 static int
1349 snd_rme96_playback_trigger(struct snd_pcm_substream *substream,
1350 			   int cmd)
1351 {
1352 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1353 
1354 	switch (cmd) {
1355 	case SNDRV_PCM_TRIGGER_START:
1356 		if (!RME96_ISPLAYING(rme96)) {
1357 			if (substream != rme96->playback_substream) {
1358 				return -EBUSY;
1359 			}
1360 			snd_rme96_playback_start(rme96, 0);
1361 		}
1362 		break;
1363 
1364 	case SNDRV_PCM_TRIGGER_STOP:
1365 		if (RME96_ISPLAYING(rme96)) {
1366 			if (substream != rme96->playback_substream) {
1367 				return -EBUSY;
1368 			}
1369 			snd_rme96_playback_stop(rme96);
1370 		}
1371 		break;
1372 
1373 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1374 		if (RME96_ISPLAYING(rme96)) {
1375 			snd_rme96_playback_stop(rme96);
1376 		}
1377 		break;
1378 
1379 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1380 		if (!RME96_ISPLAYING(rme96)) {
1381 			snd_rme96_playback_start(rme96, 1);
1382 		}
1383 		break;
1384 
1385 	default:
1386 		return -EINVAL;
1387 	}
1388 	return 0;
1389 }
1390 
1391 static int
1392 snd_rme96_capture_trigger(struct snd_pcm_substream *substream,
1393 			  int cmd)
1394 {
1395 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1396 
1397 	switch (cmd) {
1398 	case SNDRV_PCM_TRIGGER_START:
1399 		if (!RME96_ISRECORDING(rme96)) {
1400 			if (substream != rme96->capture_substream) {
1401 				return -EBUSY;
1402 			}
1403 			snd_rme96_capture_start(rme96, 0);
1404 		}
1405 		break;
1406 
1407 	case SNDRV_PCM_TRIGGER_STOP:
1408 		if (RME96_ISRECORDING(rme96)) {
1409 			if (substream != rme96->capture_substream) {
1410 				return -EBUSY;
1411 			}
1412 			snd_rme96_capture_stop(rme96);
1413 		}
1414 		break;
1415 
1416 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1417 		if (RME96_ISRECORDING(rme96)) {
1418 			snd_rme96_capture_stop(rme96);
1419 		}
1420 		break;
1421 
1422 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1423 		if (!RME96_ISRECORDING(rme96)) {
1424 			snd_rme96_capture_start(rme96, 1);
1425 		}
1426 		break;
1427 
1428 	default:
1429 		return -EINVAL;
1430 	}
1431 
1432 	return 0;
1433 }
1434 
1435 static snd_pcm_uframes_t
1436 snd_rme96_playback_pointer(struct snd_pcm_substream *substream)
1437 {
1438 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1439 	return snd_rme96_playback_ptr(rme96);
1440 }
1441 
1442 static snd_pcm_uframes_t
1443 snd_rme96_capture_pointer(struct snd_pcm_substream *substream)
1444 {
1445 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1446 	return snd_rme96_capture_ptr(rme96);
1447 }
1448 
1449 static struct snd_pcm_ops snd_rme96_playback_spdif_ops = {
1450 	.open =		snd_rme96_playback_spdif_open,
1451 	.close =	snd_rme96_playback_close,
1452 	.ioctl =	snd_pcm_lib_ioctl,
1453 	.hw_params =	snd_rme96_playback_hw_params,
1454 	.prepare =	snd_rme96_playback_prepare,
1455 	.trigger =	snd_rme96_playback_trigger,
1456 	.pointer =	snd_rme96_playback_pointer,
1457 	.copy =		snd_rme96_playback_copy,
1458 	.silence =	snd_rme96_playback_silence,
1459 	.mmap =		snd_pcm_lib_mmap_iomem,
1460 };
1461 
1462 static struct snd_pcm_ops snd_rme96_capture_spdif_ops = {
1463 	.open =		snd_rme96_capture_spdif_open,
1464 	.close =	snd_rme96_capture_close,
1465 	.ioctl =	snd_pcm_lib_ioctl,
1466 	.hw_params =	snd_rme96_capture_hw_params,
1467 	.prepare =	snd_rme96_capture_prepare,
1468 	.trigger =	snd_rme96_capture_trigger,
1469 	.pointer =	snd_rme96_capture_pointer,
1470 	.copy =		snd_rme96_capture_copy,
1471 	.mmap =		snd_pcm_lib_mmap_iomem,
1472 };
1473 
1474 static struct snd_pcm_ops snd_rme96_playback_adat_ops = {
1475 	.open =		snd_rme96_playback_adat_open,
1476 	.close =	snd_rme96_playback_close,
1477 	.ioctl =	snd_pcm_lib_ioctl,
1478 	.hw_params =	snd_rme96_playback_hw_params,
1479 	.prepare =	snd_rme96_playback_prepare,
1480 	.trigger =	snd_rme96_playback_trigger,
1481 	.pointer =	snd_rme96_playback_pointer,
1482 	.copy =		snd_rme96_playback_copy,
1483 	.silence =	snd_rme96_playback_silence,
1484 	.mmap =		snd_pcm_lib_mmap_iomem,
1485 };
1486 
1487 static struct snd_pcm_ops snd_rme96_capture_adat_ops = {
1488 	.open =		snd_rme96_capture_adat_open,
1489 	.close =	snd_rme96_capture_close,
1490 	.ioctl =	snd_pcm_lib_ioctl,
1491 	.hw_params =	snd_rme96_capture_hw_params,
1492 	.prepare =	snd_rme96_capture_prepare,
1493 	.trigger =	snd_rme96_capture_trigger,
1494 	.pointer =	snd_rme96_capture_pointer,
1495 	.copy =		snd_rme96_capture_copy,
1496 	.mmap =		snd_pcm_lib_mmap_iomem,
1497 };
1498 
1499 static void
1500 snd_rme96_free(void *private_data)
1501 {
1502 	struct rme96 *rme96 = (struct rme96 *)private_data;
1503 
1504 	if (rme96 == NULL) {
1505 	        return;
1506 	}
1507 	if (rme96->irq >= 0) {
1508 		snd_rme96_playback_stop(rme96);
1509 		snd_rme96_capture_stop(rme96);
1510 		rme96->areg &= ~RME96_AR_DAC_EN;
1511 		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1512 		free_irq(rme96->irq, (void *)rme96);
1513 		rme96->irq = -1;
1514 	}
1515 	if (rme96->iobase) {
1516 		iounmap(rme96->iobase);
1517 		rme96->iobase = NULL;
1518 	}
1519 	if (rme96->port) {
1520 		pci_release_regions(rme96->pci);
1521 		rme96->port = 0;
1522 	}
1523 	pci_disable_device(rme96->pci);
1524 }
1525 
1526 static void
1527 snd_rme96_free_spdif_pcm(struct snd_pcm *pcm)
1528 {
1529 	struct rme96 *rme96 = pcm->private_data;
1530 	rme96->spdif_pcm = NULL;
1531 }
1532 
1533 static void
1534 snd_rme96_free_adat_pcm(struct snd_pcm *pcm)
1535 {
1536 	struct rme96 *rme96 = pcm->private_data;
1537 	rme96->adat_pcm = NULL;
1538 }
1539 
1540 static int
1541 snd_rme96_create(struct rme96 *rme96)
1542 {
1543 	struct pci_dev *pci = rme96->pci;
1544 	int err;
1545 
1546 	rme96->irq = -1;
1547 	spin_lock_init(&rme96->lock);
1548 
1549 	if ((err = pci_enable_device(pci)) < 0)
1550 		return err;
1551 
1552 	if ((err = pci_request_regions(pci, "RME96")) < 0)
1553 		return err;
1554 	rme96->port = pci_resource_start(rme96->pci, 0);
1555 
1556 	rme96->iobase = ioremap_nocache(rme96->port, RME96_IO_SIZE);
1557 	if (!rme96->iobase) {
1558 		snd_printk(KERN_ERR "unable to remap memory region 0x%lx-0x%lx\n", rme96->port, rme96->port + RME96_IO_SIZE - 1);
1559 		return -ENOMEM;
1560 	}
1561 
1562 	if (request_irq(pci->irq, snd_rme96_interrupt, IRQF_SHARED,
1563 			KBUILD_MODNAME, rme96)) {
1564 		snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1565 		return -EBUSY;
1566 	}
1567 	rme96->irq = pci->irq;
1568 
1569 	/* read the card's revision number */
1570 	pci_read_config_byte(pci, 8, &rme96->rev);
1571 
1572 	/* set up ALSA pcm device for S/PDIF */
1573 	if ((err = snd_pcm_new(rme96->card, "Digi96 IEC958", 0,
1574 			       1, 1, &rme96->spdif_pcm)) < 0)
1575 	{
1576 		return err;
1577 	}
1578 	rme96->spdif_pcm->private_data = rme96;
1579 	rme96->spdif_pcm->private_free = snd_rme96_free_spdif_pcm;
1580 	strcpy(rme96->spdif_pcm->name, "Digi96 IEC958");
1581 	snd_pcm_set_ops(rme96->spdif_pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_rme96_playback_spdif_ops);
1582 	snd_pcm_set_ops(rme96->spdif_pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_rme96_capture_spdif_ops);
1583 
1584 	rme96->spdif_pcm->info_flags = 0;
1585 
1586 	/* set up ALSA pcm device for ADAT */
1587 	if (pci->device == PCI_DEVICE_ID_RME_DIGI96) {
1588 		/* ADAT is not available on the base model */
1589 		rme96->adat_pcm = NULL;
1590 	} else {
1591 		if ((err = snd_pcm_new(rme96->card, "Digi96 ADAT", 1,
1592 				       1, 1, &rme96->adat_pcm)) < 0)
1593 		{
1594 			return err;
1595 		}
1596 		rme96->adat_pcm->private_data = rme96;
1597 		rme96->adat_pcm->private_free = snd_rme96_free_adat_pcm;
1598 		strcpy(rme96->adat_pcm->name, "Digi96 ADAT");
1599 		snd_pcm_set_ops(rme96->adat_pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_rme96_playback_adat_ops);
1600 		snd_pcm_set_ops(rme96->adat_pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_rme96_capture_adat_ops);
1601 
1602 		rme96->adat_pcm->info_flags = 0;
1603 	}
1604 
1605 	rme96->playback_periodsize = 0;
1606 	rme96->capture_periodsize = 0;
1607 
1608 	/* make sure playback/capture is stopped, if by some reason active */
1609 	snd_rme96_playback_stop(rme96);
1610 	snd_rme96_capture_stop(rme96);
1611 
1612 	/* set default values in registers */
1613 	rme96->wcreg =
1614 		RME96_WCR_FREQ_1 | /* set 44.1 kHz playback */
1615 		RME96_WCR_SEL |    /* normal playback */
1616 		RME96_WCR_MASTER | /* set to master clock mode */
1617 		RME96_WCR_INP_0;   /* set coaxial input */
1618 
1619 	rme96->areg = RME96_AR_FREQPAD_1; /* set 44.1 kHz analog capture */
1620 
1621 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1622 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1623 
1624 	/* reset the ADC */
1625 	writel(rme96->areg | RME96_AR_PD2,
1626 	       rme96->iobase + RME96_IO_ADDITIONAL_REG);
1627 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1628 
1629 	/* reset and enable the DAC (order is important). */
1630 	snd_rme96_reset_dac(rme96);
1631 	rme96->areg |= RME96_AR_DAC_EN;
1632 	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1633 
1634 	/* reset playback and record buffer pointers */
1635 	writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1636 	writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1637 
1638 	/* reset volume */
1639 	rme96->vol[0] = rme96->vol[1] = 0;
1640 	if (RME96_HAS_ANALOG_OUT(rme96)) {
1641 		snd_rme96_apply_dac_volume(rme96);
1642 	}
1643 
1644 	/* init switch interface */
1645 	if ((err = snd_rme96_create_switches(rme96->card, rme96)) < 0) {
1646 		return err;
1647 	}
1648 
1649         /* init proc interface */
1650 	snd_rme96_proc_init(rme96);
1651 
1652 	return 0;
1653 }
1654 
1655 /*
1656  * proc interface
1657  */
1658 
1659 static void
1660 snd_rme96_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
1661 {
1662 	int n;
1663 	struct rme96 *rme96 = entry->private_data;
1664 
1665 	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1666 
1667 	snd_iprintf(buffer, rme96->card->longname);
1668 	snd_iprintf(buffer, " (index #%d)\n", rme96->card->number + 1);
1669 
1670 	snd_iprintf(buffer, "\nGeneral settings\n");
1671 	if (rme96->wcreg & RME96_WCR_IDIS) {
1672 		snd_iprintf(buffer, "  period size: N/A (interrupts "
1673 			    "disabled)\n");
1674 	} else if (rme96->wcreg & RME96_WCR_ISEL) {
1675 		snd_iprintf(buffer, "  period size: 2048 bytes\n");
1676 	} else {
1677 		snd_iprintf(buffer, "  period size: 8192 bytes\n");
1678 	}
1679 	snd_iprintf(buffer, "\nInput settings\n");
1680 	switch (snd_rme96_getinputtype(rme96)) {
1681 	case RME96_INPUT_OPTICAL:
1682 		snd_iprintf(buffer, "  input: optical");
1683 		break;
1684 	case RME96_INPUT_COAXIAL:
1685 		snd_iprintf(buffer, "  input: coaxial");
1686 		break;
1687 	case RME96_INPUT_INTERNAL:
1688 		snd_iprintf(buffer, "  input: internal");
1689 		break;
1690 	case RME96_INPUT_XLR:
1691 		snd_iprintf(buffer, "  input: XLR");
1692 		break;
1693 	case RME96_INPUT_ANALOG:
1694 		snd_iprintf(buffer, "  input: analog");
1695 		break;
1696 	}
1697 	if (snd_rme96_capture_getrate(rme96, &n) < 0) {
1698 		snd_iprintf(buffer, "\n  sample rate: no valid signal\n");
1699 	} else {
1700 		if (n) {
1701 			snd_iprintf(buffer, " (8 channels)\n");
1702 		} else {
1703 			snd_iprintf(buffer, " (2 channels)\n");
1704 		}
1705 		snd_iprintf(buffer, "  sample rate: %d Hz\n",
1706 			    snd_rme96_capture_getrate(rme96, &n));
1707 	}
1708 	if (rme96->wcreg & RME96_WCR_MODE24_2) {
1709 		snd_iprintf(buffer, "  sample format: 24 bit\n");
1710 	} else {
1711 		snd_iprintf(buffer, "  sample format: 16 bit\n");
1712 	}
1713 
1714 	snd_iprintf(buffer, "\nOutput settings\n");
1715 	if (rme96->wcreg & RME96_WCR_SEL) {
1716 		snd_iprintf(buffer, "  output signal: normal playback\n");
1717 	} else {
1718 		snd_iprintf(buffer, "  output signal: same as input\n");
1719 	}
1720 	snd_iprintf(buffer, "  sample rate: %d Hz\n",
1721 		    snd_rme96_playback_getrate(rme96));
1722 	if (rme96->wcreg & RME96_WCR_MODE24) {
1723 		snd_iprintf(buffer, "  sample format: 24 bit\n");
1724 	} else {
1725 		snd_iprintf(buffer, "  sample format: 16 bit\n");
1726 	}
1727 	if (rme96->areg & RME96_AR_WSEL) {
1728 		snd_iprintf(buffer, "  sample clock source: word clock\n");
1729 	} else if (rme96->wcreg & RME96_WCR_MASTER) {
1730 		snd_iprintf(buffer, "  sample clock source: internal\n");
1731 	} else if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1732 		snd_iprintf(buffer, "  sample clock source: autosync (internal anyway due to analog input setting)\n");
1733 	} else if (snd_rme96_capture_getrate(rme96, &n) < 0) {
1734 		snd_iprintf(buffer, "  sample clock source: autosync (internal anyway due to no valid signal)\n");
1735 	} else {
1736 		snd_iprintf(buffer, "  sample clock source: autosync\n");
1737 	}
1738 	if (rme96->wcreg & RME96_WCR_PRO) {
1739 		snd_iprintf(buffer, "  format: AES/EBU (professional)\n");
1740 	} else {
1741 		snd_iprintf(buffer, "  format: IEC958 (consumer)\n");
1742 	}
1743 	if (rme96->wcreg & RME96_WCR_EMP) {
1744 		snd_iprintf(buffer, "  emphasis: on\n");
1745 	} else {
1746 		snd_iprintf(buffer, "  emphasis: off\n");
1747 	}
1748 	if (rme96->wcreg & RME96_WCR_DOLBY) {
1749 		snd_iprintf(buffer, "  non-audio (dolby): on\n");
1750 	} else {
1751 		snd_iprintf(buffer, "  non-audio (dolby): off\n");
1752 	}
1753 	if (RME96_HAS_ANALOG_IN(rme96)) {
1754 		snd_iprintf(buffer, "\nAnalog output settings\n");
1755 		switch (snd_rme96_getmontracks(rme96)) {
1756 		case RME96_MONITOR_TRACKS_1_2:
1757 			snd_iprintf(buffer, "  monitored ADAT tracks: 1+2\n");
1758 			break;
1759 		case RME96_MONITOR_TRACKS_3_4:
1760 			snd_iprintf(buffer, "  monitored ADAT tracks: 3+4\n");
1761 			break;
1762 		case RME96_MONITOR_TRACKS_5_6:
1763 			snd_iprintf(buffer, "  monitored ADAT tracks: 5+6\n");
1764 			break;
1765 		case RME96_MONITOR_TRACKS_7_8:
1766 			snd_iprintf(buffer, "  monitored ADAT tracks: 7+8\n");
1767 			break;
1768 		}
1769 		switch (snd_rme96_getattenuation(rme96)) {
1770 		case RME96_ATTENUATION_0:
1771 			snd_iprintf(buffer, "  attenuation: 0 dB\n");
1772 			break;
1773 		case RME96_ATTENUATION_6:
1774 			snd_iprintf(buffer, "  attenuation: -6 dB\n");
1775 			break;
1776 		case RME96_ATTENUATION_12:
1777 			snd_iprintf(buffer, "  attenuation: -12 dB\n");
1778 			break;
1779 		case RME96_ATTENUATION_18:
1780 			snd_iprintf(buffer, "  attenuation: -18 dB\n");
1781 			break;
1782 		}
1783 		snd_iprintf(buffer, "  volume left: %u\n", rme96->vol[0]);
1784 		snd_iprintf(buffer, "  volume right: %u\n", rme96->vol[1]);
1785 	}
1786 }
1787 
1788 static void snd_rme96_proc_init(struct rme96 *rme96)
1789 {
1790 	struct snd_info_entry *entry;
1791 
1792 	if (! snd_card_proc_new(rme96->card, "rme96", &entry))
1793 		snd_info_set_text_ops(entry, rme96, snd_rme96_proc_read);
1794 }
1795 
1796 /*
1797  * control interface
1798  */
1799 
1800 #define snd_rme96_info_loopback_control		snd_ctl_boolean_mono_info
1801 
1802 static int
1803 snd_rme96_get_loopback_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1804 {
1805 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1806 
1807 	spin_lock_irq(&rme96->lock);
1808 	ucontrol->value.integer.value[0] = rme96->wcreg & RME96_WCR_SEL ? 0 : 1;
1809 	spin_unlock_irq(&rme96->lock);
1810 	return 0;
1811 }
1812 static int
1813 snd_rme96_put_loopback_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1814 {
1815 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1816 	unsigned int val;
1817 	int change;
1818 
1819 	val = ucontrol->value.integer.value[0] ? 0 : RME96_WCR_SEL;
1820 	spin_lock_irq(&rme96->lock);
1821 	val = (rme96->wcreg & ~RME96_WCR_SEL) | val;
1822 	change = val != rme96->wcreg;
1823 	rme96->wcreg = val;
1824 	writel(val, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1825 	spin_unlock_irq(&rme96->lock);
1826 	return change;
1827 }
1828 
1829 static int
1830 snd_rme96_info_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1831 {
1832 	static char *_texts[5] = { "Optical", "Coaxial", "Internal", "XLR", "Analog" };
1833 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1834 	char *texts[5] = { _texts[0], _texts[1], _texts[2], _texts[3], _texts[4] };
1835 
1836 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1837 	uinfo->count = 1;
1838 	switch (rme96->pci->device) {
1839 	case PCI_DEVICE_ID_RME_DIGI96:
1840 	case PCI_DEVICE_ID_RME_DIGI96_8:
1841 		uinfo->value.enumerated.items = 3;
1842 		break;
1843 	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1844 		uinfo->value.enumerated.items = 4;
1845 		break;
1846 	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1847 		if (rme96->rev > 4) {
1848 			/* PST */
1849 			uinfo->value.enumerated.items = 4;
1850 			texts[3] = _texts[4]; /* Analog instead of XLR */
1851 		} else {
1852 			/* PAD */
1853 			uinfo->value.enumerated.items = 5;
1854 		}
1855 		break;
1856 	default:
1857 		snd_BUG();
1858 		break;
1859 	}
1860 	if (uinfo->value.enumerated.item > uinfo->value.enumerated.items - 1) {
1861 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
1862 	}
1863 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1864 	return 0;
1865 }
1866 static int
1867 snd_rme96_get_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1868 {
1869 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1870 	unsigned int items = 3;
1871 
1872 	spin_lock_irq(&rme96->lock);
1873 	ucontrol->value.enumerated.item[0] = snd_rme96_getinputtype(rme96);
1874 
1875 	switch (rme96->pci->device) {
1876 	case PCI_DEVICE_ID_RME_DIGI96:
1877 	case PCI_DEVICE_ID_RME_DIGI96_8:
1878 		items = 3;
1879 		break;
1880 	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1881 		items = 4;
1882 		break;
1883 	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1884 		if (rme96->rev > 4) {
1885 			/* for handling PST case, (INPUT_ANALOG is moved to INPUT_XLR */
1886 			if (ucontrol->value.enumerated.item[0] == RME96_INPUT_ANALOG) {
1887 				ucontrol->value.enumerated.item[0] = RME96_INPUT_XLR;
1888 			}
1889 			items = 4;
1890 		} else {
1891 			items = 5;
1892 		}
1893 		break;
1894 	default:
1895 		snd_BUG();
1896 		break;
1897 	}
1898 	if (ucontrol->value.enumerated.item[0] >= items) {
1899 		ucontrol->value.enumerated.item[0] = items - 1;
1900 	}
1901 
1902 	spin_unlock_irq(&rme96->lock);
1903 	return 0;
1904 }
1905 static int
1906 snd_rme96_put_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1907 {
1908 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1909 	unsigned int val;
1910 	int change, items = 3;
1911 
1912 	switch (rme96->pci->device) {
1913 	case PCI_DEVICE_ID_RME_DIGI96:
1914 	case PCI_DEVICE_ID_RME_DIGI96_8:
1915 		items = 3;
1916 		break;
1917 	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1918 		items = 4;
1919 		break;
1920 	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1921 		if (rme96->rev > 4) {
1922 			items = 4;
1923 		} else {
1924 			items = 5;
1925 		}
1926 		break;
1927 	default:
1928 		snd_BUG();
1929 		break;
1930 	}
1931 	val = ucontrol->value.enumerated.item[0] % items;
1932 
1933 	/* special case for PST */
1934 	if (rme96->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST && rme96->rev > 4) {
1935 		if (val == RME96_INPUT_XLR) {
1936 			val = RME96_INPUT_ANALOG;
1937 		}
1938 	}
1939 
1940 	spin_lock_irq(&rme96->lock);
1941 	change = (int)val != snd_rme96_getinputtype(rme96);
1942 	snd_rme96_setinputtype(rme96, val);
1943 	spin_unlock_irq(&rme96->lock);
1944 	return change;
1945 }
1946 
1947 static int
1948 snd_rme96_info_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1949 {
1950 	static char *texts[3] = { "AutoSync", "Internal", "Word" };
1951 
1952 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1953 	uinfo->count = 1;
1954 	uinfo->value.enumerated.items = 3;
1955 	if (uinfo->value.enumerated.item > 2) {
1956 		uinfo->value.enumerated.item = 2;
1957 	}
1958 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1959 	return 0;
1960 }
1961 static int
1962 snd_rme96_get_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1963 {
1964 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1965 
1966 	spin_lock_irq(&rme96->lock);
1967 	ucontrol->value.enumerated.item[0] = snd_rme96_getclockmode(rme96);
1968 	spin_unlock_irq(&rme96->lock);
1969 	return 0;
1970 }
1971 static int
1972 snd_rme96_put_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1973 {
1974 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1975 	unsigned int val;
1976 	int change;
1977 
1978 	val = ucontrol->value.enumerated.item[0] % 3;
1979 	spin_lock_irq(&rme96->lock);
1980 	change = (int)val != snd_rme96_getclockmode(rme96);
1981 	snd_rme96_setclockmode(rme96, val);
1982 	spin_unlock_irq(&rme96->lock);
1983 	return change;
1984 }
1985 
1986 static int
1987 snd_rme96_info_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1988 {
1989 	static char *texts[4] = { "0 dB", "-6 dB", "-12 dB", "-18 dB" };
1990 
1991 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1992 	uinfo->count = 1;
1993 	uinfo->value.enumerated.items = 4;
1994 	if (uinfo->value.enumerated.item > 3) {
1995 		uinfo->value.enumerated.item = 3;
1996 	}
1997 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1998 	return 0;
1999 }
2000 static int
2001 snd_rme96_get_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2002 {
2003 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2004 
2005 	spin_lock_irq(&rme96->lock);
2006 	ucontrol->value.enumerated.item[0] = snd_rme96_getattenuation(rme96);
2007 	spin_unlock_irq(&rme96->lock);
2008 	return 0;
2009 }
2010 static int
2011 snd_rme96_put_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2012 {
2013 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2014 	unsigned int val;
2015 	int change;
2016 
2017 	val = ucontrol->value.enumerated.item[0] % 4;
2018 	spin_lock_irq(&rme96->lock);
2019 
2020 	change = (int)val != snd_rme96_getattenuation(rme96);
2021 	snd_rme96_setattenuation(rme96, val);
2022 	spin_unlock_irq(&rme96->lock);
2023 	return change;
2024 }
2025 
2026 static int
2027 snd_rme96_info_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2028 {
2029 	static char *texts[4] = { "1+2", "3+4", "5+6", "7+8" };
2030 
2031 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2032 	uinfo->count = 1;
2033 	uinfo->value.enumerated.items = 4;
2034 	if (uinfo->value.enumerated.item > 3) {
2035 		uinfo->value.enumerated.item = 3;
2036 	}
2037 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2038 	return 0;
2039 }
2040 static int
2041 snd_rme96_get_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2042 {
2043 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2044 
2045 	spin_lock_irq(&rme96->lock);
2046 	ucontrol->value.enumerated.item[0] = snd_rme96_getmontracks(rme96);
2047 	spin_unlock_irq(&rme96->lock);
2048 	return 0;
2049 }
2050 static int
2051 snd_rme96_put_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2052 {
2053 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2054 	unsigned int val;
2055 	int change;
2056 
2057 	val = ucontrol->value.enumerated.item[0] % 4;
2058 	spin_lock_irq(&rme96->lock);
2059 	change = (int)val != snd_rme96_getmontracks(rme96);
2060 	snd_rme96_setmontracks(rme96, val);
2061 	spin_unlock_irq(&rme96->lock);
2062 	return change;
2063 }
2064 
2065 static u32 snd_rme96_convert_from_aes(struct snd_aes_iec958 *aes)
2066 {
2067 	u32 val = 0;
2068 	val |= (aes->status[0] & IEC958_AES0_PROFESSIONAL) ? RME96_WCR_PRO : 0;
2069 	val |= (aes->status[0] & IEC958_AES0_NONAUDIO) ? RME96_WCR_DOLBY : 0;
2070 	if (val & RME96_WCR_PRO)
2071 		val |= (aes->status[0] & IEC958_AES0_PRO_EMPHASIS_5015) ? RME96_WCR_EMP : 0;
2072 	else
2073 		val |= (aes->status[0] & IEC958_AES0_CON_EMPHASIS_5015) ? RME96_WCR_EMP : 0;
2074 	return val;
2075 }
2076 
2077 static void snd_rme96_convert_to_aes(struct snd_aes_iec958 *aes, u32 val)
2078 {
2079 	aes->status[0] = ((val & RME96_WCR_PRO) ? IEC958_AES0_PROFESSIONAL : 0) |
2080 			 ((val & RME96_WCR_DOLBY) ? IEC958_AES0_NONAUDIO : 0);
2081 	if (val & RME96_WCR_PRO)
2082 		aes->status[0] |= (val & RME96_WCR_EMP) ? IEC958_AES0_PRO_EMPHASIS_5015 : 0;
2083 	else
2084 		aes->status[0] |= (val & RME96_WCR_EMP) ? IEC958_AES0_CON_EMPHASIS_5015 : 0;
2085 }
2086 
2087 static int snd_rme96_control_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2088 {
2089 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2090 	uinfo->count = 1;
2091 	return 0;
2092 }
2093 
2094 static int snd_rme96_control_spdif_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2095 {
2096 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2097 
2098 	snd_rme96_convert_to_aes(&ucontrol->value.iec958, rme96->wcreg_spdif);
2099 	return 0;
2100 }
2101 
2102 static int snd_rme96_control_spdif_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2103 {
2104 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2105 	int change;
2106 	u32 val;
2107 
2108 	val = snd_rme96_convert_from_aes(&ucontrol->value.iec958);
2109 	spin_lock_irq(&rme96->lock);
2110 	change = val != rme96->wcreg_spdif;
2111 	rme96->wcreg_spdif = val;
2112 	spin_unlock_irq(&rme96->lock);
2113 	return change;
2114 }
2115 
2116 static int snd_rme96_control_spdif_stream_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2117 {
2118 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2119 	uinfo->count = 1;
2120 	return 0;
2121 }
2122 
2123 static int snd_rme96_control_spdif_stream_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2124 {
2125 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2126 
2127 	snd_rme96_convert_to_aes(&ucontrol->value.iec958, rme96->wcreg_spdif_stream);
2128 	return 0;
2129 }
2130 
2131 static int snd_rme96_control_spdif_stream_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2132 {
2133 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2134 	int change;
2135 	u32 val;
2136 
2137 	val = snd_rme96_convert_from_aes(&ucontrol->value.iec958);
2138 	spin_lock_irq(&rme96->lock);
2139 	change = val != rme96->wcreg_spdif_stream;
2140 	rme96->wcreg_spdif_stream = val;
2141 	rme96->wcreg &= ~(RME96_WCR_PRO | RME96_WCR_DOLBY | RME96_WCR_EMP);
2142 	rme96->wcreg |= val;
2143 	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
2144 	spin_unlock_irq(&rme96->lock);
2145 	return change;
2146 }
2147 
2148 static int snd_rme96_control_spdif_mask_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_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2156 {
2157 	ucontrol->value.iec958.status[0] = kcontrol->private_value;
2158 	return 0;
2159 }
2160 
2161 static int
2162 snd_rme96_dac_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2163 {
2164 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2165 
2166         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2167         uinfo->count = 2;
2168         uinfo->value.integer.min = 0;
2169 	uinfo->value.integer.max = RME96_185X_MAX_OUT(rme96);
2170         return 0;
2171 }
2172 
2173 static int
2174 snd_rme96_dac_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *u)
2175 {
2176 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2177 
2178 	spin_lock_irq(&rme96->lock);
2179         u->value.integer.value[0] = rme96->vol[0];
2180         u->value.integer.value[1] = rme96->vol[1];
2181 	spin_unlock_irq(&rme96->lock);
2182 
2183         return 0;
2184 }
2185 
2186 static int
2187 snd_rme96_dac_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *u)
2188 {
2189 	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2190         int change = 0;
2191 	unsigned int vol, maxvol;
2192 
2193 
2194 	if (!RME96_HAS_ANALOG_OUT(rme96))
2195 		return -EINVAL;
2196 	maxvol = RME96_185X_MAX_OUT(rme96);
2197 	spin_lock_irq(&rme96->lock);
2198 	vol = u->value.integer.value[0];
2199 	if (vol != rme96->vol[0] && vol <= maxvol) {
2200 		rme96->vol[0] = vol;
2201 		change = 1;
2202 	}
2203 	vol = u->value.integer.value[1];
2204 	if (vol != rme96->vol[1] && vol <= maxvol) {
2205 		rme96->vol[1] = vol;
2206 		change = 1;
2207 	}
2208 	if (change)
2209 		snd_rme96_apply_dac_volume(rme96);
2210 	spin_unlock_irq(&rme96->lock);
2211 
2212         return change;
2213 }
2214 
2215 static struct snd_kcontrol_new snd_rme96_controls[] = {
2216 {
2217 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2218 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
2219 	.info =		snd_rme96_control_spdif_info,
2220 	.get =		snd_rme96_control_spdif_get,
2221 	.put =		snd_rme96_control_spdif_put
2222 },
2223 {
2224 	.access =	SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
2225 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2226 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
2227 	.info =		snd_rme96_control_spdif_stream_info,
2228 	.get =		snd_rme96_control_spdif_stream_get,
2229 	.put =		snd_rme96_control_spdif_stream_put
2230 },
2231 {
2232 	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
2233 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2234 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
2235 	.info =		snd_rme96_control_spdif_mask_info,
2236 	.get =		snd_rme96_control_spdif_mask_get,
2237 	.private_value = IEC958_AES0_NONAUDIO |
2238 			IEC958_AES0_PROFESSIONAL |
2239 			IEC958_AES0_CON_EMPHASIS
2240 },
2241 {
2242 	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
2243 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2244 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
2245 	.info =		snd_rme96_control_spdif_mask_info,
2246 	.get =		snd_rme96_control_spdif_mask_get,
2247 	.private_value = IEC958_AES0_NONAUDIO |
2248 			IEC958_AES0_PROFESSIONAL |
2249 			IEC958_AES0_PRO_EMPHASIS
2250 },
2251 {
2252         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2253 	.name =         "Input Connector",
2254 	.info =         snd_rme96_info_inputtype_control,
2255 	.get =          snd_rme96_get_inputtype_control,
2256 	.put =          snd_rme96_put_inputtype_control
2257 },
2258 {
2259         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2260 	.name =         "Loopback Input",
2261 	.info =         snd_rme96_info_loopback_control,
2262 	.get =          snd_rme96_get_loopback_control,
2263 	.put =          snd_rme96_put_loopback_control
2264 },
2265 {
2266         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2267 	.name =         "Sample Clock Source",
2268 	.info =         snd_rme96_info_clockmode_control,
2269 	.get =          snd_rme96_get_clockmode_control,
2270 	.put =          snd_rme96_put_clockmode_control
2271 },
2272 {
2273         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2274 	.name =         "Monitor Tracks",
2275 	.info =         snd_rme96_info_montracks_control,
2276 	.get =          snd_rme96_get_montracks_control,
2277 	.put =          snd_rme96_put_montracks_control
2278 },
2279 {
2280         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2281 	.name =         "Attenuation",
2282 	.info =         snd_rme96_info_attenuation_control,
2283 	.get =          snd_rme96_get_attenuation_control,
2284 	.put =          snd_rme96_put_attenuation_control
2285 },
2286 {
2287         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2288 	.name =         "DAC Playback Volume",
2289 	.info =         snd_rme96_dac_volume_info,
2290 	.get =          snd_rme96_dac_volume_get,
2291 	.put =          snd_rme96_dac_volume_put
2292 }
2293 };
2294 
2295 static int
2296 snd_rme96_create_switches(struct snd_card *card,
2297 			  struct rme96 *rme96)
2298 {
2299 	int idx, err;
2300 	struct snd_kcontrol *kctl;
2301 
2302 	for (idx = 0; idx < 7; idx++) {
2303 		if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme96_controls[idx], rme96))) < 0)
2304 			return err;
2305 		if (idx == 1)	/* IEC958 (S/PDIF) Stream */
2306 			rme96->spdif_ctl = kctl;
2307 	}
2308 
2309 	if (RME96_HAS_ANALOG_OUT(rme96)) {
2310 		for (idx = 7; idx < 10; idx++)
2311 			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_rme96_controls[idx], rme96))) < 0)
2312 				return err;
2313 	}
2314 
2315 	return 0;
2316 }
2317 
2318 /*
2319  * Card initialisation
2320  */
2321 
2322 static void snd_rme96_card_free(struct snd_card *card)
2323 {
2324 	snd_rme96_free(card->private_data);
2325 }
2326 
2327 static int
2328 snd_rme96_probe(struct pci_dev *pci,
2329 		const struct pci_device_id *pci_id)
2330 {
2331 	static int dev;
2332 	struct rme96 *rme96;
2333 	struct snd_card *card;
2334 	int err;
2335 	u8 val;
2336 
2337 	if (dev >= SNDRV_CARDS) {
2338 		return -ENODEV;
2339 	}
2340 	if (!enable[dev]) {
2341 		dev++;
2342 		return -ENOENT;
2343 	}
2344 	err = snd_card_create(index[dev], id[dev], THIS_MODULE,
2345 			      sizeof(struct rme96), &card);
2346 	if (err < 0)
2347 		return err;
2348 	card->private_free = snd_rme96_card_free;
2349 	rme96 = card->private_data;
2350 	rme96->card = card;
2351 	rme96->pci = pci;
2352 	snd_card_set_dev(card, &pci->dev);
2353 	if ((err = snd_rme96_create(rme96)) < 0) {
2354 		snd_card_free(card);
2355 		return err;
2356 	}
2357 
2358 	strcpy(card->driver, "Digi96");
2359 	switch (rme96->pci->device) {
2360 	case PCI_DEVICE_ID_RME_DIGI96:
2361 		strcpy(card->shortname, "RME Digi96");
2362 		break;
2363 	case PCI_DEVICE_ID_RME_DIGI96_8:
2364 		strcpy(card->shortname, "RME Digi96/8");
2365 		break;
2366 	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
2367 		strcpy(card->shortname, "RME Digi96/8 PRO");
2368 		break;
2369 	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
2370 		pci_read_config_byte(rme96->pci, 8, &val);
2371 		if (val < 5) {
2372 			strcpy(card->shortname, "RME Digi96/8 PAD");
2373 		} else {
2374 			strcpy(card->shortname, "RME Digi96/8 PST");
2375 		}
2376 		break;
2377 	}
2378 	sprintf(card->longname, "%s at 0x%lx, irq %d", card->shortname,
2379 		rme96->port, rme96->irq);
2380 
2381 	if ((err = snd_card_register(card)) < 0) {
2382 		snd_card_free(card);
2383 		return err;
2384 	}
2385 	pci_set_drvdata(pci, card);
2386 	dev++;
2387 	return 0;
2388 }
2389 
2390 static void snd_rme96_remove(struct pci_dev *pci)
2391 {
2392 	snd_card_free(pci_get_drvdata(pci));
2393 	pci_set_drvdata(pci, NULL);
2394 }
2395 
2396 static struct pci_driver rme96_driver = {
2397 	.name = KBUILD_MODNAME,
2398 	.id_table = snd_rme96_ids,
2399 	.probe = snd_rme96_probe,
2400 	.remove = snd_rme96_remove,
2401 };
2402 
2403 module_pci_driver(rme96_driver);
2404