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TOMOYO Linux Cross Reference
Linux/sound/pci/rme96.c

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  1 // SPDX-License-Identifier: GPL-2.0-or-later
  2 /*
  3  *   ALSA driver for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST audio
  4  *   interfaces 
  5  *
  6  *      Copyright (c) 2000, 2001 Anders Torger <torger@ludd.luth.se>
  7  *    
  8  *      Thanks to Henk Hesselink <henk@anda.nl> for the analog volume control
  9  *      code.
 10  */      
 11 
 12 #include <linux/delay.h>
 13 #include <linux/init.h>
 14 #include <linux/interrupt.h>
 15 #include <linux/pci.h>
 16 #include <linux/module.h>
 17 #include <linux/vmalloc.h>
 18 #include <linux/io.h>
 19 
 20 #include <sound/core.h>
 21 #include <sound/info.h>
 22 #include <sound/control.h>
 23 #include <sound/pcm.h>
 24 #include <sound/pcm_params.h>
 25 #include <sound/asoundef.h>
 26 #include <sound/initval.h>
 27 
 28 /* note, two last pcis should be equal, it is not a bug */
 29 
 30 MODULE_AUTHOR("Anders Torger <torger@ludd.luth.se>");
 31 MODULE_DESCRIPTION("RME Digi96, Digi96/8, Digi96/8 PRO, Digi96/8 PST, "
 32                    "Digi96/8 PAD");
 33 MODULE_LICENSE("GPL");
 34 
 35 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
 36 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
 37 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;     /* Enable this card */
 38 
 39 module_param_array(index, int, NULL, 0444);
 40 MODULE_PARM_DESC(index, "Index value for RME Digi96 soundcard.");
 41 module_param_array(id, charp, NULL, 0444);
 42 MODULE_PARM_DESC(id, "ID string for RME Digi96 soundcard.");
 43 module_param_array(enable, bool, NULL, 0444);
 44 MODULE_PARM_DESC(enable, "Enable RME Digi96 soundcard.");
 45 
 46 /*
 47  * Defines for RME Digi96 series, from internal RME reference documents
 48  * dated 12.01.00
 49  */
 50 
 51 #define RME96_SPDIF_NCHANNELS 2
 52 
 53 /* Playback and capture buffer size */
 54 #define RME96_BUFFER_SIZE 0x10000
 55 
 56 /* IO area size */
 57 #define RME96_IO_SIZE 0x60000
 58 
 59 /* IO area offsets */
 60 #define RME96_IO_PLAY_BUFFER      0x0
 61 #define RME96_IO_REC_BUFFER       0x10000
 62 #define RME96_IO_CONTROL_REGISTER 0x20000
 63 #define RME96_IO_ADDITIONAL_REG   0x20004
 64 #define RME96_IO_CONFIRM_PLAY_IRQ 0x20008
 65 #define RME96_IO_CONFIRM_REC_IRQ  0x2000C
 66 #define RME96_IO_SET_PLAY_POS     0x40000
 67 #define RME96_IO_RESET_PLAY_POS   0x4FFFC
 68 #define RME96_IO_SET_REC_POS      0x50000
 69 #define RME96_IO_RESET_REC_POS    0x5FFFC
 70 #define RME96_IO_GET_PLAY_POS     0x20000
 71 #define RME96_IO_GET_REC_POS      0x30000
 72 
 73 /* Write control register bits */
 74 #define RME96_WCR_START     (1 << 0)
 75 #define RME96_WCR_START_2   (1 << 1)
 76 #define RME96_WCR_GAIN_0    (1 << 2)
 77 #define RME96_WCR_GAIN_1    (1 << 3)
 78 #define RME96_WCR_MODE24    (1 << 4)
 79 #define RME96_WCR_MODE24_2  (1 << 5)
 80 #define RME96_WCR_BM        (1 << 6)
 81 #define RME96_WCR_BM_2      (1 << 7)
 82 #define RME96_WCR_ADAT      (1 << 8)
 83 #define RME96_WCR_FREQ_0    (1 << 9)
 84 #define RME96_WCR_FREQ_1    (1 << 10)
 85 #define RME96_WCR_DS        (1 << 11)
 86 #define RME96_WCR_PRO       (1 << 12)
 87 #define RME96_WCR_EMP       (1 << 13)
 88 #define RME96_WCR_SEL       (1 << 14)
 89 #define RME96_WCR_MASTER    (1 << 15)
 90 #define RME96_WCR_PD        (1 << 16)
 91 #define RME96_WCR_INP_0     (1 << 17)
 92 #define RME96_WCR_INP_1     (1 << 18)
 93 #define RME96_WCR_THRU_0    (1 << 19)
 94 #define RME96_WCR_THRU_1    (1 << 20)
 95 #define RME96_WCR_THRU_2    (1 << 21)
 96 #define RME96_WCR_THRU_3    (1 << 22)
 97 #define RME96_WCR_THRU_4    (1 << 23)
 98 #define RME96_WCR_THRU_5    (1 << 24)
 99 #define RME96_WCR_THRU_6    (1 << 25)
100 #define RME96_WCR_THRU_7    (1 << 26)
101 #define RME96_WCR_DOLBY     (1 << 27)
102 #define RME96_WCR_MONITOR_0 (1 << 28)
103 #define RME96_WCR_MONITOR_1 (1 << 29)
104 #define RME96_WCR_ISEL      (1 << 30)
105 #define RME96_WCR_IDIS      (1 << 31)
106 
107 #define RME96_WCR_BITPOS_GAIN_0 2
108 #define RME96_WCR_BITPOS_GAIN_1 3
109 #define RME96_WCR_BITPOS_FREQ_0 9
110 #define RME96_WCR_BITPOS_FREQ_1 10
111 #define RME96_WCR_BITPOS_INP_0 17
112 #define RME96_WCR_BITPOS_INP_1 18
113 #define RME96_WCR_BITPOS_MONITOR_0 28
114 #define RME96_WCR_BITPOS_MONITOR_1 29
115 
116 /* Read control register bits */
117 #define RME96_RCR_AUDIO_ADDR_MASK 0xFFFF
118 #define RME96_RCR_IRQ_2     (1 << 16)
119 #define RME96_RCR_T_OUT     (1 << 17)
120 #define RME96_RCR_DEV_ID_0  (1 << 21)
121 #define RME96_RCR_DEV_ID_1  (1 << 22)
122 #define RME96_RCR_LOCK      (1 << 23)
123 #define RME96_RCR_VERF      (1 << 26)
124 #define RME96_RCR_F0        (1 << 27)
125 #define RME96_RCR_F1        (1 << 28)
126 #define RME96_RCR_F2        (1 << 29)
127 #define RME96_RCR_AUTOSYNC  (1 << 30)
128 #define RME96_RCR_IRQ       (1 << 31)
129 
130 #define RME96_RCR_BITPOS_F0 27
131 #define RME96_RCR_BITPOS_F1 28
132 #define RME96_RCR_BITPOS_F2 29
133 
134 /* Additional register bits */
135 #define RME96_AR_WSEL       (1 << 0)
136 #define RME96_AR_ANALOG     (1 << 1)
137 #define RME96_AR_FREQPAD_0  (1 << 2)
138 #define RME96_AR_FREQPAD_1  (1 << 3)
139 #define RME96_AR_FREQPAD_2  (1 << 4)
140 #define RME96_AR_PD2        (1 << 5)
141 #define RME96_AR_DAC_EN     (1 << 6)
142 #define RME96_AR_CLATCH     (1 << 7)
143 #define RME96_AR_CCLK       (1 << 8)
144 #define RME96_AR_CDATA      (1 << 9)
145 
146 #define RME96_AR_BITPOS_F0 2
147 #define RME96_AR_BITPOS_F1 3
148 #define RME96_AR_BITPOS_F2 4
149 
150 /* Monitor tracks */
151 #define RME96_MONITOR_TRACKS_1_2 0
152 #define RME96_MONITOR_TRACKS_3_4 1
153 #define RME96_MONITOR_TRACKS_5_6 2
154 #define RME96_MONITOR_TRACKS_7_8 3
155 
156 /* Attenuation */
157 #define RME96_ATTENUATION_0 0
158 #define RME96_ATTENUATION_6 1
159 #define RME96_ATTENUATION_12 2
160 #define RME96_ATTENUATION_18 3
161 
162 /* Input types */
163 #define RME96_INPUT_OPTICAL 0
164 #define RME96_INPUT_COAXIAL 1
165 #define RME96_INPUT_INTERNAL 2
166 #define RME96_INPUT_XLR 3
167 #define RME96_INPUT_ANALOG 4
168 
169 /* Clock modes */
170 #define RME96_CLOCKMODE_SLAVE 0
171 #define RME96_CLOCKMODE_MASTER 1
172 #define RME96_CLOCKMODE_WORDCLOCK 2
173 
174 /* Block sizes in bytes */
175 #define RME96_SMALL_BLOCK_SIZE 2048
176 #define RME96_LARGE_BLOCK_SIZE 8192
177 
178 /* Volume control */
179 #define RME96_AD1852_VOL_BITS 14
180 #define RME96_AD1855_VOL_BITS 10
181 
182 /* Defines for snd_rme96_trigger */
183 #define RME96_TB_START_PLAYBACK 1
184 #define RME96_TB_START_CAPTURE 2
185 #define RME96_TB_STOP_PLAYBACK 4
186 #define RME96_TB_STOP_CAPTURE 8
187 #define RME96_TB_RESET_PLAYPOS 16
188 #define RME96_TB_RESET_CAPTUREPOS 32
189 #define RME96_TB_CLEAR_PLAYBACK_IRQ 64
190 #define RME96_TB_CLEAR_CAPTURE_IRQ 128
191 #define RME96_RESUME_PLAYBACK   (RME96_TB_START_PLAYBACK)
192 #define RME96_RESUME_CAPTURE    (RME96_TB_START_CAPTURE)
193 #define RME96_RESUME_BOTH       (RME96_RESUME_PLAYBACK \
194                                 | RME96_RESUME_CAPTURE)
195 #define RME96_START_PLAYBACK    (RME96_TB_START_PLAYBACK \
196                                 | RME96_TB_RESET_PLAYPOS)
197 #define RME96_START_CAPTURE     (RME96_TB_START_CAPTURE \
198                                 | RME96_TB_RESET_CAPTUREPOS)
199 #define RME96_START_BOTH        (RME96_START_PLAYBACK \
200                                 | RME96_START_CAPTURE)
201 #define RME96_STOP_PLAYBACK     (RME96_TB_STOP_PLAYBACK \
202                                 | RME96_TB_CLEAR_PLAYBACK_IRQ)
203 #define RME96_STOP_CAPTURE      (RME96_TB_STOP_CAPTURE \
204                                 | RME96_TB_CLEAR_CAPTURE_IRQ)
205 #define RME96_STOP_BOTH         (RME96_STOP_PLAYBACK \
206                                 | RME96_STOP_CAPTURE)
207 
208 struct rme96 {
209         spinlock_t    lock;
210         int irq;
211         unsigned long port;
212         void __iomem *iobase;
213         
214         u32 wcreg;    /* cached write control register value */
215         u32 wcreg_spdif;                /* S/PDIF setup */
216         u32 wcreg_spdif_stream;         /* S/PDIF setup (temporary) */
217         u32 rcreg;    /* cached read control register value */
218         u32 areg;     /* cached additional register value */
219         u16 vol[2]; /* cached volume of analog output */
220 
221         u8 rev; /* card revision number */
222 
223         u32 playback_pointer;
224         u32 capture_pointer;
225         void *playback_suspend_buffer;
226         void *capture_suspend_buffer;
227 
228         struct snd_pcm_substream *playback_substream;
229         struct snd_pcm_substream *capture_substream;
230 
231         int playback_frlog; /* log2 of framesize */
232         int capture_frlog;
233         
234         size_t playback_periodsize; /* in bytes, zero if not used */
235         size_t capture_periodsize; /* in bytes, zero if not used */
236 
237         struct snd_card *card;
238         struct snd_pcm *spdif_pcm;
239         struct snd_pcm *adat_pcm; 
240         struct pci_dev     *pci;
241         struct snd_kcontrol   *spdif_ctl;
242 };
243 
244 static const struct pci_device_id snd_rme96_ids[] = {
245         { PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96), 0, },
246         { PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96_8), 0, },
247         { PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96_8_PRO), 0, },
248         { PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST), 0, },
249         { 0, }
250 };
251 
252 MODULE_DEVICE_TABLE(pci, snd_rme96_ids);
253 
254 #define RME96_ISPLAYING(rme96) ((rme96)->wcreg & RME96_WCR_START)
255 #define RME96_ISRECORDING(rme96) ((rme96)->wcreg & RME96_WCR_START_2)
256 #define RME96_HAS_ANALOG_IN(rme96) ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST)
257 #define RME96_HAS_ANALOG_OUT(rme96) ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PRO || \
258                                      (rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST)
259 #define RME96_DAC_IS_1852(rme96) (RME96_HAS_ANALOG_OUT(rme96) && (rme96)->rev >= 4)
260 #define RME96_DAC_IS_1855(rme96) (((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST && (rme96)->rev < 4) || \
261                                   ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PRO && (rme96)->rev == 2))
262 #define RME96_185X_MAX_OUT(rme96) ((1 << (RME96_DAC_IS_1852(rme96) ? RME96_AD1852_VOL_BITS : RME96_AD1855_VOL_BITS)) - 1)
263 
264 static int
265 snd_rme96_playback_prepare(struct snd_pcm_substream *substream);
266 
267 static int
268 snd_rme96_capture_prepare(struct snd_pcm_substream *substream);
269 
270 static int
271 snd_rme96_playback_trigger(struct snd_pcm_substream *substream, 
272                            int cmd);
273 
274 static int
275 snd_rme96_capture_trigger(struct snd_pcm_substream *substream, 
276                           int cmd);
277 
278 static snd_pcm_uframes_t
279 snd_rme96_playback_pointer(struct snd_pcm_substream *substream);
280 
281 static snd_pcm_uframes_t
282 snd_rme96_capture_pointer(struct snd_pcm_substream *substream);
283 
284 static void snd_rme96_proc_init(struct rme96 *rme96);
285 
286 static int
287 snd_rme96_create_switches(struct snd_card *card,
288                           struct rme96 *rme96);
289 
290 static int
291 snd_rme96_getinputtype(struct rme96 *rme96);
292 
293 static inline unsigned int
294 snd_rme96_playback_ptr(struct rme96 *rme96)
295 {
296         return (readl(rme96->iobase + RME96_IO_GET_PLAY_POS)
297                 & RME96_RCR_AUDIO_ADDR_MASK) >> rme96->playback_frlog;
298 }
299 
300 static inline unsigned int
301 snd_rme96_capture_ptr(struct rme96 *rme96)
302 {
303         return (readl(rme96->iobase + RME96_IO_GET_REC_POS)
304                 & RME96_RCR_AUDIO_ADDR_MASK) >> rme96->capture_frlog;
305 }
306 
307 static int
308 snd_rme96_playback_silence(struct snd_pcm_substream *substream,
309                            int channel, unsigned long pos, unsigned long count)
310 {
311         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
312 
313         memset_io(rme96->iobase + RME96_IO_PLAY_BUFFER + pos,
314                   0, count);
315         return 0;
316 }
317 
318 static int
319 snd_rme96_playback_copy(struct snd_pcm_substream *substream,
320                         int channel, unsigned long pos,
321                         struct iov_iter *src, unsigned long count)
322 {
323         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
324 
325         return copy_from_iter_toio(rme96->iobase + RME96_IO_PLAY_BUFFER + pos,
326                                    src, count);
327 }
328 
329 static int
330 snd_rme96_capture_copy(struct snd_pcm_substream *substream,
331                        int channel, unsigned long pos,
332                        struct iov_iter *dst, unsigned long count)
333 {
334         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
335 
336         return copy_to_iter_fromio(dst,
337                                    rme96->iobase + RME96_IO_REC_BUFFER + pos,
338                                    count);
339 }
340 
341 /*
342  * Digital output capabilities (S/PDIF)
343  */
344 static const struct snd_pcm_hardware snd_rme96_playback_spdif_info =
345 {
346         .info =              (SNDRV_PCM_INFO_MMAP_IOMEM |
347                               SNDRV_PCM_INFO_MMAP_VALID |
348                               SNDRV_PCM_INFO_SYNC_START |
349                               SNDRV_PCM_INFO_RESUME |
350                               SNDRV_PCM_INFO_INTERLEAVED |
351                               SNDRV_PCM_INFO_PAUSE),
352         .formats =           (SNDRV_PCM_FMTBIT_S16_LE |
353                               SNDRV_PCM_FMTBIT_S32_LE),
354         .rates =             (SNDRV_PCM_RATE_32000 |
355                               SNDRV_PCM_RATE_44100 | 
356                               SNDRV_PCM_RATE_48000 | 
357                               SNDRV_PCM_RATE_64000 |
358                               SNDRV_PCM_RATE_88200 | 
359                               SNDRV_PCM_RATE_96000),
360         .rate_min =          32000,
361         .rate_max =          96000,
362         .channels_min =      2,
363         .channels_max =      2,
364         .buffer_bytes_max =  RME96_BUFFER_SIZE,
365         .period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
366         .period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
367         .periods_min =       RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
368         .periods_max =       RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
369         .fifo_size =         0,
370 };
371 
372 /*
373  * Digital input capabilities (S/PDIF)
374  */
375 static const struct snd_pcm_hardware snd_rme96_capture_spdif_info =
376 {
377         .info =              (SNDRV_PCM_INFO_MMAP_IOMEM |
378                               SNDRV_PCM_INFO_MMAP_VALID |
379                               SNDRV_PCM_INFO_SYNC_START |
380                               SNDRV_PCM_INFO_RESUME |
381                               SNDRV_PCM_INFO_INTERLEAVED |
382                               SNDRV_PCM_INFO_PAUSE),
383         .formats =           (SNDRV_PCM_FMTBIT_S16_LE |
384                               SNDRV_PCM_FMTBIT_S32_LE),
385         .rates =             (SNDRV_PCM_RATE_32000 |
386                               SNDRV_PCM_RATE_44100 | 
387                               SNDRV_PCM_RATE_48000 | 
388                               SNDRV_PCM_RATE_64000 |
389                               SNDRV_PCM_RATE_88200 | 
390                               SNDRV_PCM_RATE_96000),
391         .rate_min =          32000,
392         .rate_max =          96000,
393         .channels_min =      2,
394         .channels_max =      2,
395         .buffer_bytes_max =  RME96_BUFFER_SIZE,
396         .period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
397         .period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
398         .periods_min =       RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
399         .periods_max =       RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
400         .fifo_size =         0,
401 };
402 
403 /*
404  * Digital output capabilities (ADAT)
405  */
406 static const struct snd_pcm_hardware snd_rme96_playback_adat_info =
407 {
408         .info =              (SNDRV_PCM_INFO_MMAP_IOMEM |
409                               SNDRV_PCM_INFO_MMAP_VALID |
410                               SNDRV_PCM_INFO_SYNC_START |
411                               SNDRV_PCM_INFO_RESUME |
412                               SNDRV_PCM_INFO_INTERLEAVED |
413                               SNDRV_PCM_INFO_PAUSE),
414         .formats =           (SNDRV_PCM_FMTBIT_S16_LE |
415                               SNDRV_PCM_FMTBIT_S32_LE),
416         .rates =             (SNDRV_PCM_RATE_44100 | 
417                               SNDRV_PCM_RATE_48000),
418         .rate_min =          44100,
419         .rate_max =          48000,
420         .channels_min =      8,
421         .channels_max =      8,
422         .buffer_bytes_max =  RME96_BUFFER_SIZE,
423         .period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
424         .period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
425         .periods_min =       RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
426         .periods_max =       RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
427         .fifo_size =         0,
428 };
429 
430 /*
431  * Digital input capabilities (ADAT)
432  */
433 static const struct snd_pcm_hardware snd_rme96_capture_adat_info =
434 {
435         .info =              (SNDRV_PCM_INFO_MMAP_IOMEM |
436                               SNDRV_PCM_INFO_MMAP_VALID |
437                               SNDRV_PCM_INFO_SYNC_START |
438                               SNDRV_PCM_INFO_RESUME |
439                               SNDRV_PCM_INFO_INTERLEAVED |
440                               SNDRV_PCM_INFO_PAUSE),
441         .formats =           (SNDRV_PCM_FMTBIT_S16_LE |
442                               SNDRV_PCM_FMTBIT_S32_LE),
443         .rates =             (SNDRV_PCM_RATE_44100 | 
444                               SNDRV_PCM_RATE_48000),
445         .rate_min =          44100,
446         .rate_max =          48000,
447         .channels_min =      8,
448         .channels_max =      8,
449         .buffer_bytes_max =  RME96_BUFFER_SIZE,
450         .period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
451         .period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
452         .periods_min =       RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
453         .periods_max =       RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
454         .fifo_size =         0,
455 };
456 
457 /*
458  * The CDATA, CCLK and CLATCH bits can be used to write to the SPI interface
459  * of the AD1852 or AD1852 D/A converter on the board.  CDATA must be set up
460  * on the falling edge of CCLK and be stable on the rising edge.  The rising
461  * edge of CLATCH after the last data bit clocks in the whole data word.
462  * A fast processor could probably drive the SPI interface faster than the
463  * DAC can handle (3MHz for the 1855, unknown for the 1852).  The udelay(1)
464  * limits the data rate to 500KHz and only causes a delay of 33 microsecs.
465  *
466  * NOTE: increased delay from 1 to 10, since there where problems setting
467  * the volume.
468  */
469 static void
470 snd_rme96_write_SPI(struct rme96 *rme96, u16 val)
471 {
472         int i;
473 
474         for (i = 0; i < 16; i++) {
475                 if (val & 0x8000) {
476                         rme96->areg |= RME96_AR_CDATA;
477                 } else {
478                         rme96->areg &= ~RME96_AR_CDATA;
479                 }
480                 rme96->areg &= ~(RME96_AR_CCLK | RME96_AR_CLATCH);
481                 writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
482                 udelay(10);
483                 rme96->areg |= RME96_AR_CCLK;
484                 writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
485                 udelay(10);
486                 val <<= 1;
487         }
488         rme96->areg &= ~(RME96_AR_CCLK | RME96_AR_CDATA);
489         rme96->areg |= RME96_AR_CLATCH;
490         writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
491         udelay(10);
492         rme96->areg &= ~RME96_AR_CLATCH;
493         writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
494 }
495 
496 static void
497 snd_rme96_apply_dac_volume(struct rme96 *rme96)
498 {
499         if (RME96_DAC_IS_1852(rme96)) {
500                 snd_rme96_write_SPI(rme96, (rme96->vol[0] << 2) | 0x0);
501                 snd_rme96_write_SPI(rme96, (rme96->vol[1] << 2) | 0x2);
502         } else if (RME96_DAC_IS_1855(rme96)) {
503                 snd_rme96_write_SPI(rme96, (rme96->vol[0] & 0x3FF) | 0x000);
504                 snd_rme96_write_SPI(rme96, (rme96->vol[1] & 0x3FF) | 0x400);
505         }
506 }
507 
508 static void
509 snd_rme96_reset_dac(struct rme96 *rme96)
510 {
511         writel(rme96->wcreg | RME96_WCR_PD,
512                rme96->iobase + RME96_IO_CONTROL_REGISTER);
513         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
514 }
515 
516 static int
517 snd_rme96_getmontracks(struct rme96 *rme96)
518 {
519         return ((rme96->wcreg >> RME96_WCR_BITPOS_MONITOR_0) & 1) +
520                 (((rme96->wcreg >> RME96_WCR_BITPOS_MONITOR_1) & 1) << 1);
521 }
522 
523 static int
524 snd_rme96_setmontracks(struct rme96 *rme96,
525                        int montracks)
526 {
527         if (montracks & 1) {
528                 rme96->wcreg |= RME96_WCR_MONITOR_0;
529         } else {
530                 rme96->wcreg &= ~RME96_WCR_MONITOR_0;
531         }
532         if (montracks & 2) {
533                 rme96->wcreg |= RME96_WCR_MONITOR_1;
534         } else {
535                 rme96->wcreg &= ~RME96_WCR_MONITOR_1;
536         }
537         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
538         return 0;
539 }
540 
541 static int
542 snd_rme96_getattenuation(struct rme96 *rme96)
543 {
544         return ((rme96->wcreg >> RME96_WCR_BITPOS_GAIN_0) & 1) +
545                 (((rme96->wcreg >> RME96_WCR_BITPOS_GAIN_1) & 1) << 1);
546 }
547 
548 static int
549 snd_rme96_setattenuation(struct rme96 *rme96,
550                          int attenuation)
551 {
552         switch (attenuation) {
553         case 0:
554                 rme96->wcreg = (rme96->wcreg & ~RME96_WCR_GAIN_0) &
555                         ~RME96_WCR_GAIN_1;
556                 break;
557         case 1:
558                 rme96->wcreg = (rme96->wcreg | RME96_WCR_GAIN_0) &
559                         ~RME96_WCR_GAIN_1;
560                 break;
561         case 2:
562                 rme96->wcreg = (rme96->wcreg & ~RME96_WCR_GAIN_0) |
563                         RME96_WCR_GAIN_1;
564                 break;
565         case 3:
566                 rme96->wcreg = (rme96->wcreg | RME96_WCR_GAIN_0) |
567                         RME96_WCR_GAIN_1;
568                 break;
569         default:
570                 return -EINVAL;
571         }
572         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
573         return 0;
574 }
575 
576 static int
577 snd_rme96_capture_getrate(struct rme96 *rme96,
578                           int *is_adat)
579 {       
580         int n, rate;
581 
582         *is_adat = 0;
583         if (rme96->areg & RME96_AR_ANALOG) {
584                 /* Analog input, overrides S/PDIF setting */
585                 n = ((rme96->areg >> RME96_AR_BITPOS_F0) & 1) +
586                         (((rme96->areg >> RME96_AR_BITPOS_F1) & 1) << 1);
587                 switch (n) {
588                 case 1:
589                         rate = 32000;
590                         break;
591                 case 2:
592                         rate = 44100;
593                         break;
594                 case 3:
595                         rate = 48000;
596                         break;
597                 default:
598                         return -1;
599                 }
600                 return (rme96->areg & RME96_AR_BITPOS_F2) ? rate << 1 : rate;
601         }
602 
603         rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
604         if (rme96->rcreg & RME96_RCR_LOCK) {
605                 /* ADAT rate */
606                 *is_adat = 1;
607                 if (rme96->rcreg & RME96_RCR_T_OUT) {
608                         return 48000;
609                 }
610                 return 44100;
611         }
612 
613         if (rme96->rcreg & RME96_RCR_VERF) {
614                 return -1;
615         }
616         
617         /* S/PDIF rate */
618         n = ((rme96->rcreg >> RME96_RCR_BITPOS_F0) & 1) +
619                 (((rme96->rcreg >> RME96_RCR_BITPOS_F1) & 1) << 1) +
620                 (((rme96->rcreg >> RME96_RCR_BITPOS_F2) & 1) << 2);
621         
622         switch (n) {
623         case 0:         
624                 if (rme96->rcreg & RME96_RCR_T_OUT) {
625                         return 64000;
626                 }
627                 return -1;
628         case 3: return 96000;
629         case 4: return 88200;
630         case 5: return 48000;
631         case 6: return 44100;
632         case 7: return 32000;
633         default:
634                 break;
635         }
636         return -1;
637 }
638 
639 static int
640 snd_rme96_playback_getrate(struct rme96 *rme96)
641 {
642         int rate, dummy;
643 
644         if (!(rme96->wcreg & RME96_WCR_MASTER) &&
645             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG) {
646                 rate = snd_rme96_capture_getrate(rme96, &dummy);
647                 if (rate > 0) {
648                         /* slave clock */
649                         return rate;
650                 }
651         }
652 
653         rate = ((rme96->wcreg >> RME96_WCR_BITPOS_FREQ_0) & 1) +
654                 (((rme96->wcreg >> RME96_WCR_BITPOS_FREQ_1) & 1) << 1);
655         switch (rate) {
656         case 1:
657                 rate = 32000;
658                 break;
659         case 2:
660                 rate = 44100;
661                 break;
662         case 3:
663                 rate = 48000;
664                 break;
665         default:
666                 return -1;
667         }
668         return (rme96->wcreg & RME96_WCR_DS) ? rate << 1 : rate;
669 }
670 
671 static int
672 snd_rme96_playback_setrate(struct rme96 *rme96,
673                            int rate)
674 {
675         int ds;
676 
677         ds = rme96->wcreg & RME96_WCR_DS;
678         switch (rate) {
679         case 32000:
680                 rme96->wcreg &= ~RME96_WCR_DS;
681                 rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) &
682                         ~RME96_WCR_FREQ_1;
683                 break;
684         case 44100:
685                 rme96->wcreg &= ~RME96_WCR_DS;
686                 rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_1) &
687                         ~RME96_WCR_FREQ_0;
688                 break;
689         case 48000:
690                 rme96->wcreg &= ~RME96_WCR_DS;
691                 rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) |
692                         RME96_WCR_FREQ_1;
693                 break;
694         case 64000:
695                 rme96->wcreg |= RME96_WCR_DS;
696                 rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) &
697                         ~RME96_WCR_FREQ_1;
698                 break;
699         case 88200:
700                 rme96->wcreg |= RME96_WCR_DS;
701                 rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_1) &
702                         ~RME96_WCR_FREQ_0;
703                 break;
704         case 96000:
705                 rme96->wcreg |= RME96_WCR_DS;
706                 rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) |
707                         RME96_WCR_FREQ_1;
708                 break;
709         default:
710                 return -EINVAL;
711         }
712         if ((!ds && rme96->wcreg & RME96_WCR_DS) ||
713             (ds && !(rme96->wcreg & RME96_WCR_DS)))
714         {
715                 /* change to/from double-speed: reset the DAC (if available) */
716                 snd_rme96_reset_dac(rme96);
717                 return 1; /* need to restore volume */
718         } else {
719                 writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
720                 return 0;
721         }
722 }
723 
724 static int
725 snd_rme96_capture_analog_setrate(struct rme96 *rme96,
726                                  int rate)
727 {
728         switch (rate) {
729         case 32000:
730                 rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) &
731                                ~RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
732                 break;
733         case 44100:
734                 rme96->areg = ((rme96->areg & ~RME96_AR_FREQPAD_0) |
735                                RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
736                 break;
737         case 48000:
738                 rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) |
739                                RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
740                 break;
741         case 64000:
742                 if (rme96->rev < 4) {
743                         return -EINVAL;
744                 }
745                 rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) &
746                                ~RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
747                 break;
748         case 88200:
749                 if (rme96->rev < 4) {
750                         return -EINVAL;
751                 }
752                 rme96->areg = ((rme96->areg & ~RME96_AR_FREQPAD_0) |
753                                RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
754                 break;
755         case 96000:
756                 rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) |
757                                RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
758                 break;
759         default:
760                 return -EINVAL;
761         }
762         writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
763         return 0;
764 }
765 
766 static int
767 snd_rme96_setclockmode(struct rme96 *rme96,
768                        int mode)
769 {
770         switch (mode) {
771         case RME96_CLOCKMODE_SLAVE:
772                 /* AutoSync */ 
773                 rme96->wcreg &= ~RME96_WCR_MASTER;
774                 rme96->areg &= ~RME96_AR_WSEL;
775                 break;
776         case RME96_CLOCKMODE_MASTER:
777                 /* Internal */
778                 rme96->wcreg |= RME96_WCR_MASTER;
779                 rme96->areg &= ~RME96_AR_WSEL;
780                 break;
781         case RME96_CLOCKMODE_WORDCLOCK:
782                 /* Word clock is a master mode */
783                 rme96->wcreg |= RME96_WCR_MASTER; 
784                 rme96->areg |= RME96_AR_WSEL;
785                 break;
786         default:
787                 return -EINVAL;
788         }
789         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
790         writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
791         return 0;
792 }
793 
794 static int
795 snd_rme96_getclockmode(struct rme96 *rme96)
796 {
797         if (rme96->areg & RME96_AR_WSEL) {
798                 return RME96_CLOCKMODE_WORDCLOCK;
799         }
800         return (rme96->wcreg & RME96_WCR_MASTER) ? RME96_CLOCKMODE_MASTER :
801                 RME96_CLOCKMODE_SLAVE;
802 }
803 
804 static int
805 snd_rme96_setinputtype(struct rme96 *rme96,
806                        int type)
807 {
808         int n;
809 
810         switch (type) {
811         case RME96_INPUT_OPTICAL:
812                 rme96->wcreg = (rme96->wcreg & ~RME96_WCR_INP_0) &
813                         ~RME96_WCR_INP_1;
814                 break;
815         case RME96_INPUT_COAXIAL:
816                 rme96->wcreg = (rme96->wcreg | RME96_WCR_INP_0) &
817                         ~RME96_WCR_INP_1;
818                 break;
819         case RME96_INPUT_INTERNAL:
820                 rme96->wcreg = (rme96->wcreg & ~RME96_WCR_INP_0) |
821                         RME96_WCR_INP_1;
822                 break;
823         case RME96_INPUT_XLR:
824                 if ((rme96->pci->device != PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST &&
825                      rme96->pci->device != PCI_DEVICE_ID_RME_DIGI96_8_PRO) ||
826                     (rme96->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST &&
827                      rme96->rev > 4))
828                 {
829                         /* Only Digi96/8 PRO and Digi96/8 PAD supports XLR */
830                         return -EINVAL;
831                 }
832                 rme96->wcreg = (rme96->wcreg | RME96_WCR_INP_0) |
833                         RME96_WCR_INP_1;
834                 break;
835         case RME96_INPUT_ANALOG:
836                 if (!RME96_HAS_ANALOG_IN(rme96)) {
837                         return -EINVAL;
838                 }
839                 rme96->areg |= RME96_AR_ANALOG;
840                 writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
841                 if (rme96->rev < 4) {
842                         /*
843                          * Revision less than 004 does not support 64 and
844                          * 88.2 kHz
845                          */
846                         if (snd_rme96_capture_getrate(rme96, &n) == 88200) {
847                                 snd_rme96_capture_analog_setrate(rme96, 44100);
848                         }
849                         if (snd_rme96_capture_getrate(rme96, &n) == 64000) {
850                                 snd_rme96_capture_analog_setrate(rme96, 32000);
851                         }
852                 }
853                 return 0;
854         default:
855                 return -EINVAL;
856         }
857         if (type != RME96_INPUT_ANALOG && RME96_HAS_ANALOG_IN(rme96)) {
858                 rme96->areg &= ~RME96_AR_ANALOG;
859                 writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
860         }
861         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
862         return 0;
863 }
864 
865 static int
866 snd_rme96_getinputtype(struct rme96 *rme96)
867 {
868         if (rme96->areg & RME96_AR_ANALOG) {
869                 return RME96_INPUT_ANALOG;
870         }
871         return ((rme96->wcreg >> RME96_WCR_BITPOS_INP_0) & 1) +
872                 (((rme96->wcreg >> RME96_WCR_BITPOS_INP_1) & 1) << 1);
873 }
874 
875 static void
876 snd_rme96_setframelog(struct rme96 *rme96,
877                       int n_channels,
878                       int is_playback)
879 {
880         int frlog;
881         
882         if (n_channels == 2) {
883                 frlog = 1;
884         } else {
885                 /* assume 8 channels */
886                 frlog = 3;
887         }
888         if (is_playback) {
889                 frlog += (rme96->wcreg & RME96_WCR_MODE24) ? 2 : 1;
890                 rme96->playback_frlog = frlog;
891         } else {
892                 frlog += (rme96->wcreg & RME96_WCR_MODE24_2) ? 2 : 1;
893                 rme96->capture_frlog = frlog;
894         }
895 }
896 
897 static int
898 snd_rme96_playback_setformat(struct rme96 *rme96, snd_pcm_format_t format)
899 {
900         switch (format) {
901         case SNDRV_PCM_FORMAT_S16_LE:
902                 rme96->wcreg &= ~RME96_WCR_MODE24;
903                 break;
904         case SNDRV_PCM_FORMAT_S32_LE:
905                 rme96->wcreg |= RME96_WCR_MODE24;
906                 break;
907         default:
908                 return -EINVAL;
909         }
910         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
911         return 0;
912 }
913 
914 static int
915 snd_rme96_capture_setformat(struct rme96 *rme96, snd_pcm_format_t format)
916 {
917         switch (format) {
918         case SNDRV_PCM_FORMAT_S16_LE:
919                 rme96->wcreg &= ~RME96_WCR_MODE24_2;
920                 break;
921         case SNDRV_PCM_FORMAT_S32_LE:
922                 rme96->wcreg |= RME96_WCR_MODE24_2;
923                 break;
924         default:
925                 return -EINVAL;
926         }
927         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
928         return 0;
929 }
930 
931 static void
932 snd_rme96_set_period_properties(struct rme96 *rme96,
933                                 size_t period_bytes)
934 {
935         switch (period_bytes) {
936         case RME96_LARGE_BLOCK_SIZE:
937                 rme96->wcreg &= ~RME96_WCR_ISEL;
938                 break;
939         case RME96_SMALL_BLOCK_SIZE:
940                 rme96->wcreg |= RME96_WCR_ISEL;
941                 break;
942         default:
943                 snd_BUG();
944                 break;
945         }
946         rme96->wcreg &= ~RME96_WCR_IDIS;
947         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
948 }
949 
950 static int
951 snd_rme96_playback_hw_params(struct snd_pcm_substream *substream,
952                              struct snd_pcm_hw_params *params)
953 {
954         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
955         struct snd_pcm_runtime *runtime = substream->runtime;
956         int err, rate, dummy;
957         bool apply_dac_volume = false;
958 
959         runtime->dma_area = (void __force *)(rme96->iobase +
960                                              RME96_IO_PLAY_BUFFER);
961         runtime->dma_addr = rme96->port + RME96_IO_PLAY_BUFFER;
962         runtime->dma_bytes = RME96_BUFFER_SIZE;
963 
964         spin_lock_irq(&rme96->lock);
965         rate = 0;
966         if (!(rme96->wcreg & RME96_WCR_MASTER) &&
967             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG)
968                 rate = snd_rme96_capture_getrate(rme96, &dummy);
969         if (rate > 0) {
970                 /* slave clock */
971                 if ((int)params_rate(params) != rate) {
972                         err = -EIO;
973                         goto error;
974                 }
975         } else {
976                 err = snd_rme96_playback_setrate(rme96, params_rate(params));
977                 if (err < 0)
978                         goto error;
979                 apply_dac_volume = err > 0; /* need to restore volume later? */
980         }
981 
982         err = snd_rme96_playback_setformat(rme96, params_format(params));
983         if (err < 0)
984                 goto error;
985         snd_rme96_setframelog(rme96, params_channels(params), 1);
986         if (rme96->capture_periodsize != 0) {
987                 if (params_period_size(params) << rme96->playback_frlog !=
988                     rme96->capture_periodsize)
989                 {
990                         err = -EBUSY;
991                         goto error;
992                 }
993         }
994         rme96->playback_periodsize =
995                 params_period_size(params) << rme96->playback_frlog;
996         snd_rme96_set_period_properties(rme96, rme96->playback_periodsize);
997         /* S/PDIF setup */
998         if ((rme96->wcreg & RME96_WCR_ADAT) == 0) {
999                 rme96->wcreg &= ~(RME96_WCR_PRO | RME96_WCR_DOLBY | RME96_WCR_EMP);
1000                 writel(rme96->wcreg |= rme96->wcreg_spdif_stream, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1001         }
1002 
1003         err = 0;
1004  error:
1005         spin_unlock_irq(&rme96->lock);
1006         if (apply_dac_volume) {
1007                 usleep_range(3000, 10000);
1008                 snd_rme96_apply_dac_volume(rme96);
1009         }
1010 
1011         return err;
1012 }
1013 
1014 static int
1015 snd_rme96_capture_hw_params(struct snd_pcm_substream *substream,
1016                             struct snd_pcm_hw_params *params)
1017 {
1018         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1019         struct snd_pcm_runtime *runtime = substream->runtime;
1020         int err, isadat, rate;
1021         
1022         runtime->dma_area = (void __force *)(rme96->iobase +
1023                                              RME96_IO_REC_BUFFER);
1024         runtime->dma_addr = rme96->port + RME96_IO_REC_BUFFER;
1025         runtime->dma_bytes = RME96_BUFFER_SIZE;
1026 
1027         spin_lock_irq(&rme96->lock);
1028         err = snd_rme96_capture_setformat(rme96, params_format(params));
1029         if (err < 0) {
1030                 spin_unlock_irq(&rme96->lock);
1031                 return err;
1032         }
1033         if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1034                 err = snd_rme96_capture_analog_setrate(rme96, params_rate(params));
1035                 if (err < 0) {
1036                         spin_unlock_irq(&rme96->lock);
1037                         return err;
1038                 }
1039         } else {
1040                 rate = snd_rme96_capture_getrate(rme96, &isadat);
1041                 if (rate > 0) {
1042                         if ((int)params_rate(params) != rate) {
1043                                 spin_unlock_irq(&rme96->lock);
1044                                 return -EIO;
1045                         }
1046                         if ((isadat && runtime->hw.channels_min == 2) ||
1047                             (!isadat && runtime->hw.channels_min == 8)) {
1048                                 spin_unlock_irq(&rme96->lock);
1049                                 return -EIO;
1050                         }
1051                 }
1052         }
1053         snd_rme96_setframelog(rme96, params_channels(params), 0);
1054         if (rme96->playback_periodsize != 0) {
1055                 if (params_period_size(params) << rme96->capture_frlog !=
1056                     rme96->playback_periodsize)
1057                 {
1058                         spin_unlock_irq(&rme96->lock);
1059                         return -EBUSY;
1060                 }
1061         }
1062         rme96->capture_periodsize =
1063                 params_period_size(params) << rme96->capture_frlog;
1064         snd_rme96_set_period_properties(rme96, rme96->capture_periodsize);
1065         spin_unlock_irq(&rme96->lock);
1066 
1067         return 0;
1068 }
1069 
1070 static void
1071 snd_rme96_trigger(struct rme96 *rme96,
1072                   int op)
1073 {
1074         if (op & RME96_TB_RESET_PLAYPOS)
1075                 writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1076         if (op & RME96_TB_RESET_CAPTUREPOS)
1077                 writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1078         if (op & RME96_TB_CLEAR_PLAYBACK_IRQ) {
1079                 rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1080                 if (rme96->rcreg & RME96_RCR_IRQ)
1081                         writel(0, rme96->iobase + RME96_IO_CONFIRM_PLAY_IRQ);
1082         }
1083         if (op & RME96_TB_CLEAR_CAPTURE_IRQ) {
1084                 rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1085                 if (rme96->rcreg & RME96_RCR_IRQ_2)
1086                         writel(0, rme96->iobase + RME96_IO_CONFIRM_REC_IRQ);
1087         }
1088         if (op & RME96_TB_START_PLAYBACK)
1089                 rme96->wcreg |= RME96_WCR_START;
1090         if (op & RME96_TB_STOP_PLAYBACK)
1091                 rme96->wcreg &= ~RME96_WCR_START;
1092         if (op & RME96_TB_START_CAPTURE)
1093                 rme96->wcreg |= RME96_WCR_START_2;
1094         if (op & RME96_TB_STOP_CAPTURE)
1095                 rme96->wcreg &= ~RME96_WCR_START_2;
1096         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1097 }
1098 
1099 
1100 
1101 static irqreturn_t
1102 snd_rme96_interrupt(int irq,
1103                     void *dev_id)
1104 {
1105         struct rme96 *rme96 = (struct rme96 *)dev_id;
1106 
1107         rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1108         /* fastpath out, to ease interrupt sharing */
1109         if (!((rme96->rcreg & RME96_RCR_IRQ) ||
1110               (rme96->rcreg & RME96_RCR_IRQ_2)))
1111         {
1112                 return IRQ_NONE;
1113         }
1114         
1115         if (rme96->rcreg & RME96_RCR_IRQ) {
1116                 /* playback */
1117                 snd_pcm_period_elapsed(rme96->playback_substream);
1118                 writel(0, rme96->iobase + RME96_IO_CONFIRM_PLAY_IRQ);
1119         }
1120         if (rme96->rcreg & RME96_RCR_IRQ_2) {
1121                 /* capture */
1122                 snd_pcm_period_elapsed(rme96->capture_substream);               
1123                 writel(0, rme96->iobase + RME96_IO_CONFIRM_REC_IRQ);
1124         }
1125         return IRQ_HANDLED;
1126 }
1127 
1128 static const unsigned int period_bytes[] = { RME96_SMALL_BLOCK_SIZE, RME96_LARGE_BLOCK_SIZE };
1129 
1130 static const struct snd_pcm_hw_constraint_list hw_constraints_period_bytes = {
1131         .count = ARRAY_SIZE(period_bytes),
1132         .list = period_bytes,
1133         .mask = 0
1134 };
1135 
1136 static void
1137 rme96_set_buffer_size_constraint(struct rme96 *rme96,
1138                                  struct snd_pcm_runtime *runtime)
1139 {
1140         unsigned int size;
1141 
1142         snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1143                                      RME96_BUFFER_SIZE);
1144         size = rme96->playback_periodsize;
1145         if (!size)
1146                 size = rme96->capture_periodsize;
1147         if (size)
1148                 snd_pcm_hw_constraint_single(runtime,
1149                                              SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1150                                              size);
1151         else
1152                 snd_pcm_hw_constraint_list(runtime, 0,
1153                                            SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1154                                            &hw_constraints_period_bytes);
1155 }
1156 
1157 static int
1158 snd_rme96_playback_spdif_open(struct snd_pcm_substream *substream)
1159 {
1160         int rate, dummy;
1161         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1162         struct snd_pcm_runtime *runtime = substream->runtime;
1163 
1164         snd_pcm_set_sync(substream);
1165         spin_lock_irq(&rme96->lock);    
1166         if (rme96->playback_substream) {
1167                 spin_unlock_irq(&rme96->lock);
1168                 return -EBUSY;
1169         }
1170         rme96->wcreg &= ~RME96_WCR_ADAT;
1171         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1172         rme96->playback_substream = substream;
1173         spin_unlock_irq(&rme96->lock);
1174 
1175         runtime->hw = snd_rme96_playback_spdif_info;
1176         if (!(rme96->wcreg & RME96_WCR_MASTER) &&
1177             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG) {
1178                 rate = snd_rme96_capture_getrate(rme96, &dummy);
1179                 if (rate > 0) {
1180                         /* slave clock */
1181                         runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1182                         runtime->hw.rate_min = rate;
1183                         runtime->hw.rate_max = rate;
1184                 }
1185         }        
1186         rme96_set_buffer_size_constraint(rme96, runtime);
1187 
1188         rme96->wcreg_spdif_stream = rme96->wcreg_spdif;
1189         rme96->spdif_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1190         snd_ctl_notify(rme96->card, SNDRV_CTL_EVENT_MASK_VALUE |
1191                        SNDRV_CTL_EVENT_MASK_INFO, &rme96->spdif_ctl->id);
1192         return 0;
1193 }
1194 
1195 static int
1196 snd_rme96_capture_spdif_open(struct snd_pcm_substream *substream)
1197 {
1198         int isadat, rate;
1199         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1200         struct snd_pcm_runtime *runtime = substream->runtime;
1201 
1202         snd_pcm_set_sync(substream);
1203         runtime->hw = snd_rme96_capture_spdif_info;
1204         if (snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG) {
1205                 rate = snd_rme96_capture_getrate(rme96, &isadat);
1206                 if (rate > 0) {
1207                         if (isadat)
1208                                 return -EIO;
1209                         runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1210                         runtime->hw.rate_min = rate;
1211                         runtime->hw.rate_max = rate;
1212                 }
1213         }
1214         
1215         spin_lock_irq(&rme96->lock);
1216         if (rme96->capture_substream) {
1217                 spin_unlock_irq(&rme96->lock);
1218                 return -EBUSY;
1219         }
1220         rme96->capture_substream = substream;
1221         spin_unlock_irq(&rme96->lock);
1222         
1223         rme96_set_buffer_size_constraint(rme96, runtime);
1224         return 0;
1225 }
1226 
1227 static int
1228 snd_rme96_playback_adat_open(struct snd_pcm_substream *substream)
1229 {
1230         int rate, dummy;
1231         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1232         struct snd_pcm_runtime *runtime = substream->runtime;        
1233         
1234         snd_pcm_set_sync(substream);
1235         spin_lock_irq(&rme96->lock);    
1236         if (rme96->playback_substream) {
1237                 spin_unlock_irq(&rme96->lock);
1238                 return -EBUSY;
1239         }
1240         rme96->wcreg |= RME96_WCR_ADAT;
1241         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1242         rme96->playback_substream = substream;
1243         spin_unlock_irq(&rme96->lock);
1244         
1245         runtime->hw = snd_rme96_playback_adat_info;
1246         if (!(rme96->wcreg & RME96_WCR_MASTER) &&
1247             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG) {
1248                 rate = snd_rme96_capture_getrate(rme96, &dummy);
1249                 if (rate > 0) {
1250                         /* slave clock */
1251                         runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1252                         runtime->hw.rate_min = rate;
1253                         runtime->hw.rate_max = rate;
1254                 }
1255         }
1256 
1257         rme96_set_buffer_size_constraint(rme96, runtime);
1258         return 0;
1259 }
1260 
1261 static int
1262 snd_rme96_capture_adat_open(struct snd_pcm_substream *substream)
1263 {
1264         int isadat, rate;
1265         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1266         struct snd_pcm_runtime *runtime = substream->runtime;
1267 
1268         snd_pcm_set_sync(substream);
1269         runtime->hw = snd_rme96_capture_adat_info;
1270         if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1271                 /* makes no sense to use analog input. Note that analog
1272                    expension cards AEB4/8-I are RME96_INPUT_INTERNAL */
1273                 return -EIO;
1274         }
1275         rate = snd_rme96_capture_getrate(rme96, &isadat);
1276         if (rate > 0) {
1277                 if (!isadat) {
1278                         return -EIO;
1279                 }
1280                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1281                 runtime->hw.rate_min = rate;
1282                 runtime->hw.rate_max = rate;
1283         }
1284         
1285         spin_lock_irq(&rme96->lock);    
1286         if (rme96->capture_substream) {
1287                 spin_unlock_irq(&rme96->lock);
1288                 return -EBUSY;
1289         }
1290         rme96->capture_substream = substream;
1291         spin_unlock_irq(&rme96->lock);
1292 
1293         rme96_set_buffer_size_constraint(rme96, runtime);
1294         return 0;
1295 }
1296 
1297 static int
1298 snd_rme96_playback_close(struct snd_pcm_substream *substream)
1299 {
1300         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1301         int spdif = 0;
1302 
1303         spin_lock_irq(&rme96->lock);    
1304         if (RME96_ISPLAYING(rme96)) {
1305                 snd_rme96_trigger(rme96, RME96_STOP_PLAYBACK);
1306         }
1307         rme96->playback_substream = NULL;
1308         rme96->playback_periodsize = 0;
1309         spdif = (rme96->wcreg & RME96_WCR_ADAT) == 0;
1310         spin_unlock_irq(&rme96->lock);
1311         if (spdif) {
1312                 rme96->spdif_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1313                 snd_ctl_notify(rme96->card, SNDRV_CTL_EVENT_MASK_VALUE |
1314                                SNDRV_CTL_EVENT_MASK_INFO, &rme96->spdif_ctl->id);
1315         }
1316         return 0;
1317 }
1318 
1319 static int
1320 snd_rme96_capture_close(struct snd_pcm_substream *substream)
1321 {
1322         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1323         
1324         spin_lock_irq(&rme96->lock);    
1325         if (RME96_ISRECORDING(rme96)) {
1326                 snd_rme96_trigger(rme96, RME96_STOP_CAPTURE);
1327         }
1328         rme96->capture_substream = NULL;
1329         rme96->capture_periodsize = 0;
1330         spin_unlock_irq(&rme96->lock);
1331         return 0;
1332 }
1333 
1334 static int
1335 snd_rme96_playback_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_ISPLAYING(rme96)) {
1341                 snd_rme96_trigger(rme96, RME96_STOP_PLAYBACK);
1342         }
1343         writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1344         spin_unlock_irq(&rme96->lock);
1345         return 0;
1346 }
1347 
1348 static int
1349 snd_rme96_capture_prepare(struct snd_pcm_substream *substream)
1350 {
1351         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1352         
1353         spin_lock_irq(&rme96->lock);    
1354         if (RME96_ISRECORDING(rme96)) {
1355                 snd_rme96_trigger(rme96, RME96_STOP_CAPTURE);
1356         }
1357         writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1358         spin_unlock_irq(&rme96->lock);
1359         return 0;
1360 }
1361 
1362 static int
1363 snd_rme96_playback_trigger(struct snd_pcm_substream *substream, 
1364                            int cmd)
1365 {
1366         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1367         struct snd_pcm_substream *s;
1368         bool sync;
1369 
1370         snd_pcm_group_for_each_entry(s, substream) {
1371                 if (snd_pcm_substream_chip(s) == rme96)
1372                         snd_pcm_trigger_done(s, substream);
1373         }
1374 
1375         sync = (rme96->playback_substream && rme96->capture_substream) &&
1376                (rme96->playback_substream->group ==
1377                 rme96->capture_substream->group);
1378 
1379         switch (cmd) {
1380         case SNDRV_PCM_TRIGGER_START:
1381                 if (!RME96_ISPLAYING(rme96)) {
1382                         if (substream != rme96->playback_substream)
1383                                 return -EBUSY;
1384                         snd_rme96_trigger(rme96, sync ? RME96_START_BOTH
1385                                                  : RME96_START_PLAYBACK);
1386                 }
1387                 break;
1388 
1389         case SNDRV_PCM_TRIGGER_SUSPEND:
1390         case SNDRV_PCM_TRIGGER_STOP:
1391                 if (RME96_ISPLAYING(rme96)) {
1392                         if (substream != rme96->playback_substream)
1393                                 return -EBUSY;
1394                         snd_rme96_trigger(rme96, sync ? RME96_STOP_BOTH
1395                                                  :  RME96_STOP_PLAYBACK);
1396                 }
1397                 break;
1398 
1399         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1400                 if (RME96_ISPLAYING(rme96))
1401                         snd_rme96_trigger(rme96, sync ? RME96_STOP_BOTH
1402                                                  : RME96_STOP_PLAYBACK);
1403                 break;
1404 
1405         case SNDRV_PCM_TRIGGER_RESUME:
1406         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1407                 if (!RME96_ISPLAYING(rme96))
1408                         snd_rme96_trigger(rme96, sync ? RME96_RESUME_BOTH
1409                                                  : RME96_RESUME_PLAYBACK);
1410                 break;
1411 
1412         default:
1413                 return -EINVAL;
1414         }
1415 
1416         return 0;
1417 }
1418 
1419 static int
1420 snd_rme96_capture_trigger(struct snd_pcm_substream *substream, 
1421                           int cmd)
1422 {
1423         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1424         struct snd_pcm_substream *s;
1425         bool sync;
1426 
1427         snd_pcm_group_for_each_entry(s, substream) {
1428                 if (snd_pcm_substream_chip(s) == rme96)
1429                         snd_pcm_trigger_done(s, substream);
1430         }
1431 
1432         sync = (rme96->playback_substream && rme96->capture_substream) &&
1433                (rme96->playback_substream->group ==
1434                 rme96->capture_substream->group);
1435 
1436         switch (cmd) {
1437         case SNDRV_PCM_TRIGGER_START:
1438                 if (!RME96_ISRECORDING(rme96)) {
1439                         if (substream != rme96->capture_substream)
1440                                 return -EBUSY;
1441                         snd_rme96_trigger(rme96, sync ? RME96_START_BOTH
1442                                                  : RME96_START_CAPTURE);
1443                 }
1444                 break;
1445 
1446         case SNDRV_PCM_TRIGGER_SUSPEND:
1447         case SNDRV_PCM_TRIGGER_STOP:
1448                 if (RME96_ISRECORDING(rme96)) {
1449                         if (substream != rme96->capture_substream)
1450                                 return -EBUSY;
1451                         snd_rme96_trigger(rme96, sync ? RME96_STOP_BOTH
1452                                                  : RME96_STOP_CAPTURE);
1453                 }
1454                 break;
1455 
1456         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1457                 if (RME96_ISRECORDING(rme96))
1458                         snd_rme96_trigger(rme96, sync ? RME96_STOP_BOTH
1459                                                  : RME96_STOP_CAPTURE);
1460                 break;
1461 
1462         case SNDRV_PCM_TRIGGER_RESUME:
1463         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1464                 if (!RME96_ISRECORDING(rme96))
1465                         snd_rme96_trigger(rme96, sync ? RME96_RESUME_BOTH
1466                                                  : RME96_RESUME_CAPTURE);
1467                 break;
1468 
1469         default:
1470                 return -EINVAL;
1471         }
1472 
1473         return 0;
1474 }
1475 
1476 static snd_pcm_uframes_t
1477 snd_rme96_playback_pointer(struct snd_pcm_substream *substream)
1478 {
1479         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1480         return snd_rme96_playback_ptr(rme96);
1481 }
1482 
1483 static snd_pcm_uframes_t
1484 snd_rme96_capture_pointer(struct snd_pcm_substream *substream)
1485 {
1486         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1487         return snd_rme96_capture_ptr(rme96);
1488 }
1489 
1490 static const struct snd_pcm_ops snd_rme96_playback_spdif_ops = {
1491         .open =         snd_rme96_playback_spdif_open,
1492         .close =        snd_rme96_playback_close,
1493         .hw_params =    snd_rme96_playback_hw_params,
1494         .prepare =      snd_rme96_playback_prepare,
1495         .trigger =      snd_rme96_playback_trigger,
1496         .pointer =      snd_rme96_playback_pointer,
1497         .copy =         snd_rme96_playback_copy,
1498         .fill_silence = snd_rme96_playback_silence,
1499         .mmap =         snd_pcm_lib_mmap_iomem,
1500 };
1501 
1502 static const struct snd_pcm_ops snd_rme96_capture_spdif_ops = {
1503         .open =         snd_rme96_capture_spdif_open,
1504         .close =        snd_rme96_capture_close,
1505         .hw_params =    snd_rme96_capture_hw_params,
1506         .prepare =      snd_rme96_capture_prepare,
1507         .trigger =      snd_rme96_capture_trigger,
1508         .pointer =      snd_rme96_capture_pointer,
1509         .copy =         snd_rme96_capture_copy,
1510         .mmap =         snd_pcm_lib_mmap_iomem,
1511 };
1512 
1513 static const struct snd_pcm_ops snd_rme96_playback_adat_ops = {
1514         .open =         snd_rme96_playback_adat_open,
1515         .close =        snd_rme96_playback_close,
1516         .hw_params =    snd_rme96_playback_hw_params,
1517         .prepare =      snd_rme96_playback_prepare,
1518         .trigger =      snd_rme96_playback_trigger,
1519         .pointer =      snd_rme96_playback_pointer,
1520         .copy =         snd_rme96_playback_copy,
1521         .fill_silence = snd_rme96_playback_silence,
1522         .mmap =         snd_pcm_lib_mmap_iomem,
1523 };
1524 
1525 static const struct snd_pcm_ops snd_rme96_capture_adat_ops = {
1526         .open =         snd_rme96_capture_adat_open,
1527         .close =        snd_rme96_capture_close,
1528         .hw_params =    snd_rme96_capture_hw_params,
1529         .prepare =      snd_rme96_capture_prepare,
1530         .trigger =      snd_rme96_capture_trigger,
1531         .pointer =      snd_rme96_capture_pointer,
1532         .copy =         snd_rme96_capture_copy,
1533         .mmap =         snd_pcm_lib_mmap_iomem,
1534 };
1535 
1536 static void
1537 snd_rme96_free(struct rme96 *rme96)
1538 {
1539         if (rme96->irq >= 0) {
1540                 snd_rme96_trigger(rme96, RME96_STOP_BOTH);
1541                 rme96->areg &= ~RME96_AR_DAC_EN;
1542                 writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1543         }
1544         vfree(rme96->playback_suspend_buffer);
1545         vfree(rme96->capture_suspend_buffer);
1546 }
1547 
1548 static void
1549 snd_rme96_free_spdif_pcm(struct snd_pcm *pcm)
1550 {
1551         struct rme96 *rme96 = pcm->private_data;
1552         rme96->spdif_pcm = NULL;
1553 }
1554 
1555 static void
1556 snd_rme96_free_adat_pcm(struct snd_pcm *pcm)
1557 {
1558         struct rme96 *rme96 = pcm->private_data;
1559         rme96->adat_pcm = NULL;
1560 }
1561 
1562 static int
1563 snd_rme96_create(struct rme96 *rme96)
1564 {
1565         struct pci_dev *pci = rme96->pci;
1566         int err;
1567 
1568         rme96->irq = -1;
1569         spin_lock_init(&rme96->lock);
1570 
1571         err = pcim_enable_device(pci);
1572         if (err < 0)
1573                 return err;
1574 
1575         err = pci_request_regions(pci, "RME96");
1576         if (err < 0)
1577                 return err;
1578         rme96->port = pci_resource_start(rme96->pci, 0);
1579 
1580         rme96->iobase = devm_ioremap(&pci->dev, rme96->port, RME96_IO_SIZE);
1581         if (!rme96->iobase) {
1582                 dev_err(rme96->card->dev,
1583                         "unable to remap memory region 0x%lx-0x%lx\n",
1584                         rme96->port, rme96->port + RME96_IO_SIZE - 1);
1585                 return -EBUSY;
1586         }
1587 
1588         if (devm_request_irq(&pci->dev, pci->irq, snd_rme96_interrupt,
1589                              IRQF_SHARED, KBUILD_MODNAME, rme96)) {
1590                 dev_err(rme96->card->dev, "unable to grab IRQ %d\n", pci->irq);
1591                 return -EBUSY;
1592         }
1593         rme96->irq = pci->irq;
1594         rme96->card->sync_irq = rme96->irq;
1595 
1596         /* read the card's revision number */
1597         pci_read_config_byte(pci, 8, &rme96->rev);      
1598         
1599         /* set up ALSA pcm device for S/PDIF */
1600         err = snd_pcm_new(rme96->card, "Digi96 IEC958", 0,
1601                           1, 1, &rme96->spdif_pcm);
1602         if (err < 0)
1603                 return err;
1604 
1605         rme96->spdif_pcm->private_data = rme96;
1606         rme96->spdif_pcm->private_free = snd_rme96_free_spdif_pcm;
1607         strcpy(rme96->spdif_pcm->name, "Digi96 IEC958");
1608         snd_pcm_set_ops(rme96->spdif_pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_rme96_playback_spdif_ops);
1609         snd_pcm_set_ops(rme96->spdif_pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_rme96_capture_spdif_ops);
1610 
1611         rme96->spdif_pcm->info_flags = 0;
1612 
1613         /* set up ALSA pcm device for ADAT */
1614         if (pci->device == PCI_DEVICE_ID_RME_DIGI96) {
1615                 /* ADAT is not available on the base model */
1616                 rme96->adat_pcm = NULL;
1617         } else {
1618                 err = snd_pcm_new(rme96->card, "Digi96 ADAT", 1,
1619                                   1, 1, &rme96->adat_pcm);
1620                 if (err < 0)
1621                         return err;
1622                 rme96->adat_pcm->private_data = rme96;
1623                 rme96->adat_pcm->private_free = snd_rme96_free_adat_pcm;
1624                 strcpy(rme96->adat_pcm->name, "Digi96 ADAT");
1625                 snd_pcm_set_ops(rme96->adat_pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_rme96_playback_adat_ops);
1626                 snd_pcm_set_ops(rme96->adat_pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_rme96_capture_adat_ops);
1627                 
1628                 rme96->adat_pcm->info_flags = 0;
1629         }
1630 
1631         rme96->playback_periodsize = 0;
1632         rme96->capture_periodsize = 0;
1633         
1634         /* make sure playback/capture is stopped, if by some reason active */
1635         snd_rme96_trigger(rme96, RME96_STOP_BOTH);
1636         
1637         /* set default values in registers */
1638         rme96->wcreg =
1639                 RME96_WCR_FREQ_1 | /* set 44.1 kHz playback */
1640                 RME96_WCR_SEL |    /* normal playback */
1641                 RME96_WCR_MASTER | /* set to master clock mode */
1642                 RME96_WCR_INP_0;   /* set coaxial input */
1643 
1644         rme96->areg = RME96_AR_FREQPAD_1; /* set 44.1 kHz analog capture */
1645 
1646         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1647         writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1648         
1649         /* reset the ADC */
1650         writel(rme96->areg | RME96_AR_PD2,
1651                rme96->iobase + RME96_IO_ADDITIONAL_REG);
1652         writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);   
1653 
1654         /* reset and enable the DAC (order is important). */
1655         snd_rme96_reset_dac(rme96);
1656         rme96->areg |= RME96_AR_DAC_EN;
1657         writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1658 
1659         /* reset playback and record buffer pointers */
1660         writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1661         writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1662 
1663         /* reset volume */
1664         rme96->vol[0] = rme96->vol[1] = 0;
1665         if (RME96_HAS_ANALOG_OUT(rme96)) {
1666                 snd_rme96_apply_dac_volume(rme96);
1667         }
1668         
1669         /* init switch interface */
1670         err = snd_rme96_create_switches(rme96->card, rme96);
1671         if (err < 0)
1672                 return err;
1673 
1674         /* init proc interface */
1675         snd_rme96_proc_init(rme96);
1676         
1677         return 0;
1678 }
1679 
1680 /*
1681  * proc interface
1682  */
1683 
1684 static void 
1685 snd_rme96_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
1686 {
1687         int n;
1688         struct rme96 *rme96 = entry->private_data;
1689         
1690         rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1691 
1692         snd_iprintf(buffer, rme96->card->longname);
1693         snd_iprintf(buffer, " (index #%d)\n", rme96->card->number + 1);
1694 
1695         snd_iprintf(buffer, "\nGeneral settings\n");
1696         if (rme96->wcreg & RME96_WCR_IDIS) {
1697                 snd_iprintf(buffer, "  period size: N/A (interrupts "
1698                             "disabled)\n");
1699         } else if (rme96->wcreg & RME96_WCR_ISEL) {
1700                 snd_iprintf(buffer, "  period size: 2048 bytes\n");
1701         } else {
1702                 snd_iprintf(buffer, "  period size: 8192 bytes\n");
1703         }       
1704         snd_iprintf(buffer, "\nInput settings\n");
1705         switch (snd_rme96_getinputtype(rme96)) {
1706         case RME96_INPUT_OPTICAL:
1707                 snd_iprintf(buffer, "  input: optical");
1708                 break;
1709         case RME96_INPUT_COAXIAL:
1710                 snd_iprintf(buffer, "  input: coaxial");
1711                 break;
1712         case RME96_INPUT_INTERNAL:
1713                 snd_iprintf(buffer, "  input: internal");
1714                 break;
1715         case RME96_INPUT_XLR:
1716                 snd_iprintf(buffer, "  input: XLR");
1717                 break;
1718         case RME96_INPUT_ANALOG:
1719                 snd_iprintf(buffer, "  input: analog");
1720                 break;
1721         }
1722         if (snd_rme96_capture_getrate(rme96, &n) < 0) {
1723                 snd_iprintf(buffer, "\n  sample rate: no valid signal\n");
1724         } else {
1725                 if (n) {
1726                         snd_iprintf(buffer, " (8 channels)\n");
1727                 } else {
1728                         snd_iprintf(buffer, " (2 channels)\n");
1729                 }
1730                 snd_iprintf(buffer, "  sample rate: %d Hz\n",
1731                             snd_rme96_capture_getrate(rme96, &n));
1732         }
1733         if (rme96->wcreg & RME96_WCR_MODE24_2) {
1734                 snd_iprintf(buffer, "  sample format: 24 bit\n");
1735         } else {
1736                 snd_iprintf(buffer, "  sample format: 16 bit\n");
1737         }
1738         
1739         snd_iprintf(buffer, "\nOutput settings\n");
1740         if (rme96->wcreg & RME96_WCR_SEL) {
1741                 snd_iprintf(buffer, "  output signal: normal playback\n");
1742         } else {
1743                 snd_iprintf(buffer, "  output signal: same as input\n");
1744         }
1745         snd_iprintf(buffer, "  sample rate: %d Hz\n",
1746                     snd_rme96_playback_getrate(rme96));
1747         if (rme96->wcreg & RME96_WCR_MODE24) {
1748                 snd_iprintf(buffer, "  sample format: 24 bit\n");
1749         } else {
1750                 snd_iprintf(buffer, "  sample format: 16 bit\n");
1751         }
1752         if (rme96->areg & RME96_AR_WSEL) {
1753                 snd_iprintf(buffer, "  sample clock source: word clock\n");
1754         } else if (rme96->wcreg & RME96_WCR_MASTER) {
1755                 snd_iprintf(buffer, "  sample clock source: internal\n");
1756         } else if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1757                 snd_iprintf(buffer, "  sample clock source: autosync (internal anyway due to analog input setting)\n");
1758         } else if (snd_rme96_capture_getrate(rme96, &n) < 0) {
1759                 snd_iprintf(buffer, "  sample clock source: autosync (internal anyway due to no valid signal)\n");
1760         } else {
1761                 snd_iprintf(buffer, "  sample clock source: autosync\n");
1762         }
1763         if (rme96->wcreg & RME96_WCR_PRO) {
1764                 snd_iprintf(buffer, "  format: AES/EBU (professional)\n");
1765         } else {
1766                 snd_iprintf(buffer, "  format: IEC958 (consumer)\n");
1767         }
1768         if (rme96->wcreg & RME96_WCR_EMP) {
1769                 snd_iprintf(buffer, "  emphasis: on\n");
1770         } else {
1771                 snd_iprintf(buffer, "  emphasis: off\n");
1772         }
1773         if (rme96->wcreg & RME96_WCR_DOLBY) {
1774                 snd_iprintf(buffer, "  non-audio (dolby): on\n");
1775         } else {
1776                 snd_iprintf(buffer, "  non-audio (dolby): off\n");
1777         }
1778         if (RME96_HAS_ANALOG_IN(rme96)) {
1779                 snd_iprintf(buffer, "\nAnalog output settings\n");
1780                 switch (snd_rme96_getmontracks(rme96)) {
1781                 case RME96_MONITOR_TRACKS_1_2:
1782                         snd_iprintf(buffer, "  monitored ADAT tracks: 1+2\n");
1783                         break;
1784                 case RME96_MONITOR_TRACKS_3_4:
1785                         snd_iprintf(buffer, "  monitored ADAT tracks: 3+4\n");
1786                         break;
1787                 case RME96_MONITOR_TRACKS_5_6:
1788                         snd_iprintf(buffer, "  monitored ADAT tracks: 5+6\n");
1789                         break;
1790                 case RME96_MONITOR_TRACKS_7_8:
1791                         snd_iprintf(buffer, "  monitored ADAT tracks: 7+8\n");
1792                         break;
1793                 }
1794                 switch (snd_rme96_getattenuation(rme96)) {
1795                 case RME96_ATTENUATION_0:
1796                         snd_iprintf(buffer, "  attenuation: 0 dB\n");
1797                         break;
1798                 case RME96_ATTENUATION_6:
1799                         snd_iprintf(buffer, "  attenuation: -6 dB\n");
1800                         break;
1801                 case RME96_ATTENUATION_12:
1802                         snd_iprintf(buffer, "  attenuation: -12 dB\n");
1803                         break;
1804                 case RME96_ATTENUATION_18:
1805                         snd_iprintf(buffer, "  attenuation: -18 dB\n");
1806                         break;
1807                 }
1808                 snd_iprintf(buffer, "  volume left: %u\n", rme96->vol[0]);
1809                 snd_iprintf(buffer, "  volume right: %u\n", rme96->vol[1]);
1810         }
1811 }
1812 
1813 static void snd_rme96_proc_init(struct rme96 *rme96)
1814 {
1815         snd_card_ro_proc_new(rme96->card, "rme96", rme96, snd_rme96_proc_read);
1816 }
1817 
1818 /*
1819  * control interface
1820  */
1821 
1822 #define snd_rme96_info_loopback_control         snd_ctl_boolean_mono_info
1823 
1824 static int
1825 snd_rme96_get_loopback_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1826 {
1827         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1828         
1829         spin_lock_irq(&rme96->lock);
1830         ucontrol->value.integer.value[0] = rme96->wcreg & RME96_WCR_SEL ? 0 : 1;
1831         spin_unlock_irq(&rme96->lock);
1832         return 0;
1833 }
1834 static int
1835 snd_rme96_put_loopback_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1836 {
1837         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1838         unsigned int val;
1839         int change;
1840         
1841         val = ucontrol->value.integer.value[0] ? 0 : RME96_WCR_SEL;
1842         spin_lock_irq(&rme96->lock);
1843         val = (rme96->wcreg & ~RME96_WCR_SEL) | val;
1844         change = val != rme96->wcreg;
1845         rme96->wcreg = val;
1846         writel(val, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1847         spin_unlock_irq(&rme96->lock);
1848         return change;
1849 }
1850 
1851 static int
1852 snd_rme96_info_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1853 {
1854         static const char * const _texts[5] = {
1855                 "Optical", "Coaxial", "Internal", "XLR", "Analog"
1856         };
1857         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1858         const char *texts[5] = {
1859                 _texts[0], _texts[1], _texts[2], _texts[3], _texts[4]
1860         };
1861         int num_items;
1862         
1863         switch (rme96->pci->device) {
1864         case PCI_DEVICE_ID_RME_DIGI96:
1865         case PCI_DEVICE_ID_RME_DIGI96_8:
1866                 num_items = 3;
1867                 break;
1868         case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1869                 num_items = 4;
1870                 break;
1871         case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1872                 if (rme96->rev > 4) {
1873                         /* PST */
1874                         num_items = 4;
1875                         texts[3] = _texts[4]; /* Analog instead of XLR */
1876                 } else {
1877                         /* PAD */
1878                         num_items = 5;
1879                 }
1880                 break;
1881         default:
1882                 snd_BUG();
1883                 return -EINVAL;
1884         }
1885         return snd_ctl_enum_info(uinfo, 1, num_items, texts);
1886 }
1887 static int
1888 snd_rme96_get_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1889 {
1890         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1891         unsigned int items = 3;
1892         
1893         spin_lock_irq(&rme96->lock);
1894         ucontrol->value.enumerated.item[0] = snd_rme96_getinputtype(rme96);
1895         
1896         switch (rme96->pci->device) {
1897         case PCI_DEVICE_ID_RME_DIGI96:
1898         case PCI_DEVICE_ID_RME_DIGI96_8:
1899                 items = 3;
1900                 break;
1901         case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1902                 items = 4;
1903                 break;
1904         case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1905                 if (rme96->rev > 4) {
1906                         /* for handling PST case, (INPUT_ANALOG is moved to INPUT_XLR */
1907                         if (ucontrol->value.enumerated.item[0] == RME96_INPUT_ANALOG) {
1908                                 ucontrol->value.enumerated.item[0] = RME96_INPUT_XLR;
1909                         }
1910                         items = 4;
1911                 } else {
1912                         items = 5;
1913                 }
1914                 break;
1915         default:
1916                 snd_BUG();
1917                 break;
1918         }
1919         if (ucontrol->value.enumerated.item[0] >= items) {
1920                 ucontrol->value.enumerated.item[0] = items - 1;
1921         }
1922         
1923         spin_unlock_irq(&rme96->lock);
1924         return 0;
1925 }
1926 static int
1927 snd_rme96_put_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1928 {
1929         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1930         unsigned int val;
1931         int change, items = 3;
1932         
1933         switch (rme96->pci->device) {
1934         case PCI_DEVICE_ID_RME_DIGI96:
1935         case PCI_DEVICE_ID_RME_DIGI96_8:
1936                 items = 3;
1937                 break;
1938         case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1939                 items = 4;
1940                 break;
1941         case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1942                 if (rme96->rev > 4) {
1943                         items = 4;
1944                 } else {
1945                         items = 5;
1946                 }
1947                 break;
1948         default:
1949                 snd_BUG();
1950                 break;
1951         }
1952         val = ucontrol->value.enumerated.item[0] % items;
1953         
1954         /* special case for PST */
1955         if (rme96->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST && rme96->rev > 4) {
1956                 if (val == RME96_INPUT_XLR) {
1957                         val = RME96_INPUT_ANALOG;
1958                 }
1959         }
1960         
1961         spin_lock_irq(&rme96->lock);
1962         change = (int)val != snd_rme96_getinputtype(rme96);
1963         snd_rme96_setinputtype(rme96, val);
1964         spin_unlock_irq(&rme96->lock);
1965         return change;
1966 }
1967 
1968 static int
1969 snd_rme96_info_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1970 {
1971         static const char * const texts[3] = { "AutoSync", "Internal", "Word" };
1972         
1973         return snd_ctl_enum_info(uinfo, 1, 3, texts);
1974 }
1975 static int
1976 snd_rme96_get_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1977 {
1978         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1979         
1980         spin_lock_irq(&rme96->lock);
1981         ucontrol->value.enumerated.item[0] = snd_rme96_getclockmode(rme96);
1982         spin_unlock_irq(&rme96->lock);
1983         return 0;
1984 }
1985 static int
1986 snd_rme96_put_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1987 {
1988         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1989         unsigned int val;
1990         int change;
1991         
1992         val = ucontrol->value.enumerated.item[0] % 3;
1993         spin_lock_irq(&rme96->lock);
1994         change = (int)val != snd_rme96_getclockmode(rme96);
1995         snd_rme96_setclockmode(rme96, val);
1996         spin_unlock_irq(&rme96->lock);
1997         return change;
1998 }
1999 
2000 static int
2001 snd_rme96_info_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2002 {
2003         static const char * const texts[4] = {
2004                 "0 dB", "-6 dB", "-12 dB", "-18 dB"
2005         };
2006         
2007         return snd_ctl_enum_info(uinfo, 1, 4, texts);
2008 }
2009 static int
2010 snd_rme96_get_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2011 {
2012         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2013         
2014         spin_lock_irq(&rme96->lock);
2015         ucontrol->value.enumerated.item[0] = snd_rme96_getattenuation(rme96);
2016         spin_unlock_irq(&rme96->lock);
2017         return 0;
2018 }
2019 static int
2020 snd_rme96_put_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2021 {
2022         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2023         unsigned int val;
2024         int change;
2025         
2026         val = ucontrol->value.enumerated.item[0] % 4;
2027         spin_lock_irq(&rme96->lock);
2028 
2029         change = (int)val != snd_rme96_getattenuation(rme96);
2030         snd_rme96_setattenuation(rme96, val);
2031         spin_unlock_irq(&rme96->lock);
2032         return change;
2033 }
2034 
2035 static int
2036 snd_rme96_info_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2037 {
2038         static const char * const texts[4] = { "1+2", "3+4", "5+6", "7+8" };
2039         
2040         return snd_ctl_enum_info(uinfo, 1, 4, texts);
2041 }
2042 static int
2043 snd_rme96_get_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2044 {
2045         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2046         
2047         spin_lock_irq(&rme96->lock);
2048         ucontrol->value.enumerated.item[0] = snd_rme96_getmontracks(rme96);
2049         spin_unlock_irq(&rme96->lock);
2050         return 0;
2051 }
2052 static int
2053 snd_rme96_put_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2054 {
2055         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2056         unsigned int val;
2057         int change;
2058         
2059         val = ucontrol->value.enumerated.item[0] % 4;
2060         spin_lock_irq(&rme96->lock);
2061         change = (int)val != snd_rme96_getmontracks(rme96);
2062         snd_rme96_setmontracks(rme96, val);
2063         spin_unlock_irq(&rme96->lock);
2064         return change;
2065 }
2066 
2067 static u32 snd_rme96_convert_from_aes(struct snd_aes_iec958 *aes)
2068 {
2069         u32 val = 0;
2070         val |= (aes->status[0] & IEC958_AES0_PROFESSIONAL) ? RME96_WCR_PRO : 0;
2071         val |= (aes->status[0] & IEC958_AES0_NONAUDIO) ? RME96_WCR_DOLBY : 0;
2072         if (val & RME96_WCR_PRO)
2073                 val |= (aes->status[0] & IEC958_AES0_PRO_EMPHASIS_5015) ? RME96_WCR_EMP : 0;
2074         else
2075                 val |= (aes->status[0] & IEC958_AES0_CON_EMPHASIS_5015) ? RME96_WCR_EMP : 0;
2076         return val;
2077 }
2078 
2079 static void snd_rme96_convert_to_aes(struct snd_aes_iec958 *aes, u32 val)
2080 {
2081         aes->status[0] = ((val & RME96_WCR_PRO) ? IEC958_AES0_PROFESSIONAL : 0) |
2082                          ((val & RME96_WCR_DOLBY) ? IEC958_AES0_NONAUDIO : 0);
2083         if (val & RME96_WCR_PRO)
2084                 aes->status[0] |= (val & RME96_WCR_EMP) ? IEC958_AES0_PRO_EMPHASIS_5015 : 0;
2085         else
2086                 aes->status[0] |= (val & RME96_WCR_EMP) ? IEC958_AES0_CON_EMPHASIS_5015 : 0;
2087 }
2088 
2089 static int snd_rme96_control_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2090 {
2091         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2092         uinfo->count = 1;
2093         return 0;
2094 }
2095 
2096 static int snd_rme96_control_spdif_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2097 {
2098         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2099         
2100         snd_rme96_convert_to_aes(&ucontrol->value.iec958, rme96->wcreg_spdif);
2101         return 0;
2102 }
2103 
2104 static int snd_rme96_control_spdif_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2105 {
2106         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2107         int change;
2108         u32 val;
2109         
2110         val = snd_rme96_convert_from_aes(&ucontrol->value.iec958);
2111         spin_lock_irq(&rme96->lock);
2112         change = val != rme96->wcreg_spdif;
2113         rme96->wcreg_spdif = val;
2114         spin_unlock_irq(&rme96->lock);
2115         return change;
2116 }
2117 
2118 static int snd_rme96_control_spdif_stream_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2119 {
2120         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2121         uinfo->count = 1;
2122         return 0;
2123 }
2124 
2125 static int snd_rme96_control_spdif_stream_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2126 {
2127         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2128         
2129         snd_rme96_convert_to_aes(&ucontrol->value.iec958, rme96->wcreg_spdif_stream);
2130         return 0;
2131 }
2132 
2133 static int snd_rme96_control_spdif_stream_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2134 {
2135         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2136         int change;
2137         u32 val;
2138         
2139         val = snd_rme96_convert_from_aes(&ucontrol->value.iec958);
2140         spin_lock_irq(&rme96->lock);
2141         change = val != rme96->wcreg_spdif_stream;
2142         rme96->wcreg_spdif_stream = val;
2143         rme96->wcreg &= ~(RME96_WCR_PRO | RME96_WCR_DOLBY | RME96_WCR_EMP);
2144         rme96->wcreg |= val;
2145         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
2146         spin_unlock_irq(&rme96->lock);
2147         return change;
2148 }
2149 
2150 static int snd_rme96_control_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2151 {
2152         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2153         uinfo->count = 1;
2154         return 0;
2155 }
2156 
2157 static int snd_rme96_control_spdif_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2158 {
2159         ucontrol->value.iec958.status[0] = kcontrol->private_value;
2160         return 0;
2161 }
2162 
2163 static int
2164 snd_rme96_dac_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2165 {
2166         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2167         
2168         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2169         uinfo->count = 2;
2170         uinfo->value.integer.min = 0;
2171         uinfo->value.integer.max = RME96_185X_MAX_OUT(rme96);
2172         return 0;
2173 }
2174 
2175 static int
2176 snd_rme96_dac_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *u)
2177 {
2178         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2179 
2180         spin_lock_irq(&rme96->lock);
2181         u->value.integer.value[0] = rme96->vol[0];
2182         u->value.integer.value[1] = rme96->vol[1];
2183         spin_unlock_irq(&rme96->lock);
2184 
2185         return 0;
2186 }
2187 
2188 static int
2189 snd_rme96_dac_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *u)
2190 {
2191         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2192         int change = 0;
2193         unsigned int vol, maxvol;
2194 
2195 
2196         if (!RME96_HAS_ANALOG_OUT(rme96))
2197                 return -EINVAL;
2198         maxvol = RME96_185X_MAX_OUT(rme96);
2199         spin_lock_irq(&rme96->lock);
2200         vol = u->value.integer.value[0];
2201         if (vol != rme96->vol[0] && vol <= maxvol) {
2202                 rme96->vol[0] = vol;
2203                 change = 1;
2204         }
2205         vol = u->value.integer.value[1];
2206         if (vol != rme96->vol[1] && vol <= maxvol) {
2207                 rme96->vol[1] = vol;
2208                 change = 1;
2209         }
2210         if (change)
2211                 snd_rme96_apply_dac_volume(rme96);
2212         spin_unlock_irq(&rme96->lock);
2213 
2214         return change;
2215 }
2216 
2217 static const struct snd_kcontrol_new snd_rme96_controls[] = {
2218 {
2219         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
2220         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
2221         .info =         snd_rme96_control_spdif_info,
2222         .get =          snd_rme96_control_spdif_get,
2223         .put =          snd_rme96_control_spdif_put
2224 },
2225 {
2226         .access =       SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
2227         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
2228         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
2229         .info =         snd_rme96_control_spdif_stream_info,
2230         .get =          snd_rme96_control_spdif_stream_get,
2231         .put =          snd_rme96_control_spdif_stream_put
2232 },
2233 {
2234         .access =       SNDRV_CTL_ELEM_ACCESS_READ,
2235         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
2236         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
2237         .info =         snd_rme96_control_spdif_mask_info,
2238         .get =          snd_rme96_control_spdif_mask_get,
2239         .private_value = IEC958_AES0_NONAUDIO |
2240                         IEC958_AES0_PROFESSIONAL |
2241                         IEC958_AES0_CON_EMPHASIS
2242 },
2243 {
2244         .access =       SNDRV_CTL_ELEM_ACCESS_READ,
2245         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
2246         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
2247         .info =         snd_rme96_control_spdif_mask_info,
2248         .get =          snd_rme96_control_spdif_mask_get,
2249         .private_value = IEC958_AES0_NONAUDIO |
2250                         IEC958_AES0_PROFESSIONAL |
2251                         IEC958_AES0_PRO_EMPHASIS
2252 },
2253 {
2254         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2255         .name =         "Input Connector",
2256         .info =         snd_rme96_info_inputtype_control, 
2257         .get =          snd_rme96_get_inputtype_control,
2258         .put =          snd_rme96_put_inputtype_control 
2259 },
2260 {
2261         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2262         .name =         "Loopback Input",
2263         .info =         snd_rme96_info_loopback_control,
2264         .get =          snd_rme96_get_loopback_control,
2265         .put =          snd_rme96_put_loopback_control
2266 },
2267 {
2268         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2269         .name =         "Sample Clock Source",
2270         .info =         snd_rme96_info_clockmode_control, 
2271         .get =          snd_rme96_get_clockmode_control,
2272         .put =          snd_rme96_put_clockmode_control
2273 },
2274 {
2275         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2276         .name =         "Monitor Tracks",
2277         .info =         snd_rme96_info_montracks_control, 
2278         .get =          snd_rme96_get_montracks_control,
2279         .put =          snd_rme96_put_montracks_control
2280 },
2281 {
2282         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2283         .name =         "Attenuation",
2284         .info =         snd_rme96_info_attenuation_control, 
2285         .get =          snd_rme96_get_attenuation_control,
2286         .put =          snd_rme96_put_attenuation_control
2287 },
2288 {
2289         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2290         .name =         "DAC Playback Volume",
2291         .info =         snd_rme96_dac_volume_info,
2292         .get =          snd_rme96_dac_volume_get,
2293         .put =          snd_rme96_dac_volume_put
2294 }
2295 };
2296 
2297 static int
2298 snd_rme96_create_switches(struct snd_card *card,
2299                           struct rme96 *rme96)
2300 {
2301         int idx, err;
2302         struct snd_kcontrol *kctl;
2303 
2304         for (idx = 0; idx < 7; idx++) {
2305                 kctl = snd_ctl_new1(&snd_rme96_controls[idx], rme96);
2306                 err = snd_ctl_add(card, kctl);
2307                 if (err < 0)
2308                         return err;
2309                 if (idx == 1)   /* IEC958 (S/PDIF) Stream */
2310                         rme96->spdif_ctl = kctl;
2311         }
2312 
2313         if (RME96_HAS_ANALOG_OUT(rme96)) {
2314                 for (idx = 7; idx < 10; idx++) {
2315                         err = snd_ctl_add(card, snd_ctl_new1(&snd_rme96_controls[idx], rme96));
2316                         if (err < 0)
2317                                 return err;
2318                 }
2319         }
2320         
2321         return 0;
2322 }
2323 
2324 /*
2325  * Card initialisation
2326  */
2327 
2328 static int rme96_suspend(struct device *dev)
2329 {
2330         struct snd_card *card = dev_get_drvdata(dev);
2331         struct rme96 *rme96 = card->private_data;
2332 
2333         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2334 
2335         /* save capture & playback pointers */
2336         rme96->playback_pointer = readl(rme96->iobase + RME96_IO_GET_PLAY_POS)
2337                                   & RME96_RCR_AUDIO_ADDR_MASK;
2338         rme96->capture_pointer = readl(rme96->iobase + RME96_IO_GET_REC_POS)
2339                                  & RME96_RCR_AUDIO_ADDR_MASK;
2340 
2341         /* save playback and capture buffers */
2342         memcpy_fromio(rme96->playback_suspend_buffer,
2343                       rme96->iobase + RME96_IO_PLAY_BUFFER, RME96_BUFFER_SIZE);
2344         memcpy_fromio(rme96->capture_suspend_buffer,
2345                       rme96->iobase + RME96_IO_REC_BUFFER, RME96_BUFFER_SIZE);
2346 
2347         /* disable the DAC  */
2348         rme96->areg &= ~RME96_AR_DAC_EN;
2349         writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
2350         return 0;
2351 }
2352 
2353 static int rme96_resume(struct device *dev)
2354 {
2355         struct snd_card *card = dev_get_drvdata(dev);
2356         struct rme96 *rme96 = card->private_data;
2357 
2358         /* reset playback and record buffer pointers */
2359         writel(0, rme96->iobase + RME96_IO_SET_PLAY_POS
2360                   + rme96->playback_pointer);
2361         writel(0, rme96->iobase + RME96_IO_SET_REC_POS
2362                   + rme96->capture_pointer);
2363 
2364         /* restore playback and capture buffers */
2365         memcpy_toio(rme96->iobase + RME96_IO_PLAY_BUFFER,
2366                     rme96->playback_suspend_buffer, RME96_BUFFER_SIZE);
2367         memcpy_toio(rme96->iobase + RME96_IO_REC_BUFFER,
2368                     rme96->capture_suspend_buffer, RME96_BUFFER_SIZE);
2369 
2370         /* reset the ADC */
2371         writel(rme96->areg | RME96_AR_PD2,
2372                rme96->iobase + RME96_IO_ADDITIONAL_REG);
2373         writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
2374 
2375         /* reset and enable DAC, restore analog volume */
2376         snd_rme96_reset_dac(rme96);
2377         rme96->areg |= RME96_AR_DAC_EN;
2378         writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
2379         if (RME96_HAS_ANALOG_OUT(rme96)) {
2380                 usleep_range(3000, 10000);
2381                 snd_rme96_apply_dac_volume(rme96);
2382         }
2383 
2384         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2385 
2386         return 0;
2387 }
2388 
2389 static DEFINE_SIMPLE_DEV_PM_OPS(rme96_pm, rme96_suspend, rme96_resume);
2390 
2391 static void snd_rme96_card_free(struct snd_card *card)
2392 {
2393         snd_rme96_free(card->private_data);
2394 }
2395 
2396 static int
2397 __snd_rme96_probe(struct pci_dev *pci,
2398                   const struct pci_device_id *pci_id)
2399 {
2400         static int dev;
2401         struct rme96 *rme96;
2402         struct snd_card *card;
2403         int err;
2404         u8 val;
2405 
2406         if (dev >= SNDRV_CARDS) {
2407                 return -ENODEV;
2408         }
2409         if (!enable[dev]) {
2410                 dev++;
2411                 return -ENOENT;
2412         }
2413         err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2414                                 sizeof(*rme96), &card);
2415         if (err < 0)
2416                 return err;
2417         card->private_free = snd_rme96_card_free;
2418         rme96 = card->private_data;
2419         rme96->card = card;
2420         rme96->pci = pci;
2421         err = snd_rme96_create(rme96);
2422         if (err)
2423                 return err;
2424         
2425         if (IS_ENABLED(CONFIG_PM_SLEEP)) {
2426                 rme96->playback_suspend_buffer = vmalloc(RME96_BUFFER_SIZE);
2427                 if (!rme96->playback_suspend_buffer)
2428                         return -ENOMEM;
2429                 rme96->capture_suspend_buffer = vmalloc(RME96_BUFFER_SIZE);
2430                 if (!rme96->capture_suspend_buffer)
2431                         return -ENOMEM;
2432         }
2433 
2434         strcpy(card->driver, "Digi96");
2435         switch (rme96->pci->device) {
2436         case PCI_DEVICE_ID_RME_DIGI96:
2437                 strcpy(card->shortname, "RME Digi96");
2438                 break;
2439         case PCI_DEVICE_ID_RME_DIGI96_8:
2440                 strcpy(card->shortname, "RME Digi96/8");
2441                 break;
2442         case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
2443                 strcpy(card->shortname, "RME Digi96/8 PRO");
2444                 break;
2445         case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
2446                 pci_read_config_byte(rme96->pci, 8, &val);
2447                 if (val < 5) {
2448                         strcpy(card->shortname, "RME Digi96/8 PAD");
2449                 } else {
2450                         strcpy(card->shortname, "RME Digi96/8 PST");
2451                 }
2452                 break;
2453         }
2454         sprintf(card->longname, "%s at 0x%lx, irq %d", card->shortname,
2455                 rme96->port, rme96->irq);
2456         err = snd_card_register(card);
2457         if (err)
2458                 return err;
2459 
2460         pci_set_drvdata(pci, card);
2461         dev++;
2462         return 0;
2463 }
2464 
2465 static int snd_rme96_probe(struct pci_dev *pci,
2466                            const struct pci_device_id *pci_id)
2467 {
2468         return snd_card_free_on_error(&pci->dev, __snd_rme96_probe(pci, pci_id));
2469 }
2470 
2471 static struct pci_driver rme96_driver = {
2472         .name = KBUILD_MODNAME,
2473         .id_table = snd_rme96_ids,
2474         .probe = snd_rme96_probe,
2475         .driver = {
2476                 .pm = &rme96_pm,
2477         },
2478 };
2479 
2480 module_pci_driver(rme96_driver);
2481 

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