ALSA: rme32: Remove superfluous snd_dma_continuous_data()
[sfrench/cifs-2.6.git] / sound / pci / rme32.c
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *   ALSA driver for RME Digi32, Digi32/8 and Digi32 PRO audio interfaces
4  *
5  *      Copyright (c) 2002-2004 Martin Langer <martin-langer@gmx.de>,
6  *                              Pilo Chambert <pilo.c@wanadoo.fr>
7  *
8  *      Thanks to :        Anders Torger <torger@ludd.luth.se>,
9  *                         Henk Hesselink <henk@anda.nl>
10  *                         for writing the digi96-driver 
11  *                         and RME for all informations.
12  * 
13  * ****************************************************************************
14  * 
15  * Note #1 "Sek'd models" ................................... martin 2002-12-07
16  * 
17  * Identical soundcards by Sek'd were labeled:
18  * RME Digi 32     = Sek'd Prodif 32
19  * RME Digi 32 Pro = Sek'd Prodif 96
20  * RME Digi 32/8   = Sek'd Prodif Gold
21  * 
22  * ****************************************************************************
23  * 
24  * Note #2 "full duplex mode" ............................... martin 2002-12-07
25  * 
26  * Full duplex doesn't work. All cards (32, 32/8, 32Pro) are working identical
27  * in this mode. Rec data and play data are using the same buffer therefore. At
28  * first you have got the playing bits in the buffer and then (after playing
29  * them) they were overwitten by the captured sound of the CS8412/14. Both 
30  * modes (play/record) are running harmonically hand in hand in the same buffer
31  * and you have only one start bit plus one interrupt bit to control this 
32  * paired action.
33  * This is opposite to the latter rme96 where playing and capturing is totally
34  * separated and so their full duplex mode is supported by alsa (using two 
35  * start bits and two interrupts for two different buffers). 
36  * But due to the wrong sequence of playing and capturing ALSA shows no solved
37  * full duplex support for the rme32 at the moment. That's bad, but I'm not
38  * able to solve it. Are you motivated enough to solve this problem now? Your
39  * patch would be welcome!
40  * 
41  * ****************************************************************************
42  *
43  * "The story after the long seeking" -- tiwai
44  *
45  * Ok, the situation regarding the full duplex is now improved a bit.
46  * In the fullduplex mode (given by the module parameter), the hardware buffer
47  * is split to halves for read and write directions at the DMA pointer.
48  * That is, the half above the current DMA pointer is used for write, and
49  * the half below is used for read.  To mangle this strange behavior, an
50  * software intermediate buffer is introduced.  This is, of course, not good
51  * from the viewpoint of the data transfer efficiency.  However, this allows
52  * you to use arbitrary buffer sizes, instead of the fixed I/O buffer size.
53  *
54  * ****************************************************************************
55  */
56
57
58 #include <linux/delay.h>
59 #include <linux/gfp.h>
60 #include <linux/init.h>
61 #include <linux/interrupt.h>
62 #include <linux/pci.h>
63 #include <linux/module.h>
64 #include <linux/io.h>
65
66 #include <sound/core.h>
67 #include <sound/info.h>
68 #include <sound/control.h>
69 #include <sound/pcm.h>
70 #include <sound/pcm_params.h>
71 #include <sound/pcm-indirect.h>
72 #include <sound/asoundef.h>
73 #include <sound/initval.h>
74
75 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
76 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
77 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;     /* Enable this card */
78 static bool fullduplex[SNDRV_CARDS]; // = {[0 ... (SNDRV_CARDS - 1)] = 1};
79
80 module_param_array(index, int, NULL, 0444);
81 MODULE_PARM_DESC(index, "Index value for RME Digi32 soundcard.");
82 module_param_array(id, charp, NULL, 0444);
83 MODULE_PARM_DESC(id, "ID string for RME Digi32 soundcard.");
84 module_param_array(enable, bool, NULL, 0444);
85 MODULE_PARM_DESC(enable, "Enable RME Digi32 soundcard.");
86 module_param_array(fullduplex, bool, NULL, 0444);
87 MODULE_PARM_DESC(fullduplex, "Support full-duplex mode.");
88 MODULE_AUTHOR("Martin Langer <martin-langer@gmx.de>, Pilo Chambert <pilo.c@wanadoo.fr>");
89 MODULE_DESCRIPTION("RME Digi32, Digi32/8, Digi32 PRO");
90 MODULE_LICENSE("GPL");
91 MODULE_SUPPORTED_DEVICE("{{RME,Digi32}," "{RME,Digi32/8}," "{RME,Digi32 PRO}}");
92
93 /* Defines for RME Digi32 series */
94 #define RME32_SPDIF_NCHANNELS 2
95
96 /* Playback and capture buffer size */
97 #define RME32_BUFFER_SIZE 0x20000
98
99 /* IO area size */
100 #define RME32_IO_SIZE 0x30000
101
102 /* IO area offsets */
103 #define RME32_IO_DATA_BUFFER        0x0
104 #define RME32_IO_CONTROL_REGISTER   0x20000
105 #define RME32_IO_GET_POS            0x20000
106 #define RME32_IO_CONFIRM_ACTION_IRQ 0x20004
107 #define RME32_IO_RESET_POS          0x20100
108
109 /* Write control register bits */
110 #define RME32_WCR_START     (1 << 0)    /* startbit */
111 #define RME32_WCR_MONO      (1 << 1)    /* 0=stereo, 1=mono
112                                            Setting the whole card to mono
113                                            doesn't seem to be very useful.
114                                            A software-solution can handle 
115                                            full-duplex with one direction in
116                                            stereo and the other way in mono. 
117                                            So, the hardware should work all 
118                                            the time in stereo! */
119 #define RME32_WCR_MODE24    (1 << 2)    /* 0=16bit, 1=32bit */
120 #define RME32_WCR_SEL       (1 << 3)    /* 0=input on output, 1=normal playback/capture */
121 #define RME32_WCR_FREQ_0    (1 << 4)    /* frequency (play) */
122 #define RME32_WCR_FREQ_1    (1 << 5)
123 #define RME32_WCR_INP_0     (1 << 6)    /* input switch */
124 #define RME32_WCR_INP_1     (1 << 7)
125 #define RME32_WCR_RESET     (1 << 8)    /* Reset address */
126 #define RME32_WCR_MUTE      (1 << 9)    /* digital mute for output */
127 #define RME32_WCR_PRO       (1 << 10)   /* 1=professional, 0=consumer */
128 #define RME32_WCR_DS_BM     (1 << 11)   /* 1=DoubleSpeed (only PRO-Version); 1=BlockMode (only Adat-Version) */
129 #define RME32_WCR_ADAT      (1 << 12)   /* Adat Mode (only Adat-Version) */
130 #define RME32_WCR_AUTOSYNC  (1 << 13)   /* AutoSync */
131 #define RME32_WCR_PD        (1 << 14)   /* DAC Reset (only PRO-Version) */
132 #define RME32_WCR_EMP       (1 << 15)   /* 1=Emphasis on (only PRO-Version) */
133
134 #define RME32_WCR_BITPOS_FREQ_0 4
135 #define RME32_WCR_BITPOS_FREQ_1 5
136 #define RME32_WCR_BITPOS_INP_0 6
137 #define RME32_WCR_BITPOS_INP_1 7
138
139 /* Read control register bits */
140 #define RME32_RCR_AUDIO_ADDR_MASK 0x1ffff
141 #define RME32_RCR_LOCK      (1 << 23)   /* 1=locked, 0=not locked */
142 #define RME32_RCR_ERF       (1 << 26)   /* 1=Error, 0=no Error */
143 #define RME32_RCR_FREQ_0    (1 << 27)   /* CS841x frequency (record) */
144 #define RME32_RCR_FREQ_1    (1 << 28)
145 #define RME32_RCR_FREQ_2    (1 << 29)
146 #define RME32_RCR_KMODE     (1 << 30)   /* card mode: 1=PLL, 0=quartz */
147 #define RME32_RCR_IRQ       (1 << 31)   /* interrupt */
148
149 #define RME32_RCR_BITPOS_F0 27
150 #define RME32_RCR_BITPOS_F1 28
151 #define RME32_RCR_BITPOS_F2 29
152
153 /* Input types */
154 #define RME32_INPUT_OPTICAL 0
155 #define RME32_INPUT_COAXIAL 1
156 #define RME32_INPUT_INTERNAL 2
157 #define RME32_INPUT_XLR 3
158
159 /* Clock modes */
160 #define RME32_CLOCKMODE_SLAVE 0
161 #define RME32_CLOCKMODE_MASTER_32 1
162 #define RME32_CLOCKMODE_MASTER_44 2
163 #define RME32_CLOCKMODE_MASTER_48 3
164
165 /* Block sizes in bytes */
166 #define RME32_BLOCK_SIZE 8192
167
168 /* Software intermediate buffer (max) size */
169 #define RME32_MID_BUFFER_SIZE (1024*1024)
170
171 /* Hardware revisions */
172 #define RME32_32_REVISION 192
173 #define RME32_328_REVISION_OLD 100
174 #define RME32_328_REVISION_NEW 101
175 #define RME32_PRO_REVISION_WITH_8412 192
176 #define RME32_PRO_REVISION_WITH_8414 150
177
178
179 struct rme32 {
180         spinlock_t lock;
181         int irq;
182         unsigned long port;
183         void __iomem *iobase;
184
185         u32 wcreg;              /* cached write control register value */
186         u32 wcreg_spdif;        /* S/PDIF setup */
187         u32 wcreg_spdif_stream; /* S/PDIF setup (temporary) */
188         u32 rcreg;              /* cached read control register value */
189
190         u8 rev;                 /* card revision number */
191
192         struct snd_pcm_substream *playback_substream;
193         struct snd_pcm_substream *capture_substream;
194
195         int playback_frlog;     /* log2 of framesize */
196         int capture_frlog;
197
198         size_t playback_periodsize;     /* in bytes, zero if not used */
199         size_t capture_periodsize;      /* in bytes, zero if not used */
200
201         unsigned int fullduplex_mode;
202         int running;
203
204         struct snd_pcm_indirect playback_pcm;
205         struct snd_pcm_indirect capture_pcm;
206
207         struct snd_card *card;
208         struct snd_pcm *spdif_pcm;
209         struct snd_pcm *adat_pcm;
210         struct pci_dev *pci;
211         struct snd_kcontrol *spdif_ctl;
212 };
213
214 static const struct pci_device_id snd_rme32_ids[] = {
215         {PCI_VDEVICE(XILINX_RME, PCI_DEVICE_ID_RME_DIGI32), 0,},
216         {PCI_VDEVICE(XILINX_RME, PCI_DEVICE_ID_RME_DIGI32_8), 0,},
217         {PCI_VDEVICE(XILINX_RME, PCI_DEVICE_ID_RME_DIGI32_PRO), 0,},
218         {0,}
219 };
220
221 MODULE_DEVICE_TABLE(pci, snd_rme32_ids);
222
223 #define RME32_ISWORKING(rme32) ((rme32)->wcreg & RME32_WCR_START)
224 #define RME32_PRO_WITH_8414(rme32) ((rme32)->pci->device == PCI_DEVICE_ID_RME_DIGI32_PRO && (rme32)->rev == RME32_PRO_REVISION_WITH_8414)
225
226 static int snd_rme32_playback_prepare(struct snd_pcm_substream *substream);
227
228 static int snd_rme32_capture_prepare(struct snd_pcm_substream *substream);
229
230 static int snd_rme32_pcm_trigger(struct snd_pcm_substream *substream, int cmd);
231
232 static void snd_rme32_proc_init(struct rme32 * rme32);
233
234 static int snd_rme32_create_switches(struct snd_card *card, struct rme32 * rme32);
235
236 static inline unsigned int snd_rme32_pcm_byteptr(struct rme32 * rme32)
237 {
238         return (readl(rme32->iobase + RME32_IO_GET_POS)
239                 & RME32_RCR_AUDIO_ADDR_MASK);
240 }
241
242 /* silence callback for halfduplex mode */
243 static int snd_rme32_playback_silence(struct snd_pcm_substream *substream,
244                                       int channel, unsigned long pos,
245                                       unsigned long count)
246 {
247         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
248
249         memset_io(rme32->iobase + RME32_IO_DATA_BUFFER + pos, 0, count);
250         return 0;
251 }
252
253 /* copy callback for halfduplex mode */
254 static int snd_rme32_playback_copy(struct snd_pcm_substream *substream,
255                                    int channel, unsigned long pos,
256                                    void __user *src, unsigned long count)
257 {
258         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
259
260         if (copy_from_user_toio(rme32->iobase + RME32_IO_DATA_BUFFER + pos,
261                                 src, count))
262                 return -EFAULT;
263         return 0;
264 }
265
266 static int snd_rme32_playback_copy_kernel(struct snd_pcm_substream *substream,
267                                           int channel, unsigned long pos,
268                                           void *src, unsigned long count)
269 {
270         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
271
272         memcpy_toio(rme32->iobase + RME32_IO_DATA_BUFFER + pos, src, count);
273         return 0;
274 }
275
276 /* copy callback for halfduplex mode */
277 static int snd_rme32_capture_copy(struct snd_pcm_substream *substream,
278                                   int channel, unsigned long pos,
279                                   void __user *dst, unsigned long count)
280 {
281         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
282
283         if (copy_to_user_fromio(dst,
284                             rme32->iobase + RME32_IO_DATA_BUFFER + pos,
285                             count))
286                 return -EFAULT;
287         return 0;
288 }
289
290 static int snd_rme32_capture_copy_kernel(struct snd_pcm_substream *substream,
291                                          int channel, unsigned long pos,
292                                          void *dst, unsigned long count)
293 {
294         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
295
296         memcpy_fromio(dst, rme32->iobase + RME32_IO_DATA_BUFFER + pos, count);
297         return 0;
298 }
299
300 /*
301  * SPDIF I/O capabilities (half-duplex mode)
302  */
303 static const struct snd_pcm_hardware snd_rme32_spdif_info = {
304         .info =         (SNDRV_PCM_INFO_MMAP_IOMEM |
305                          SNDRV_PCM_INFO_MMAP_VALID |
306                          SNDRV_PCM_INFO_INTERLEAVED | 
307                          SNDRV_PCM_INFO_PAUSE |
308                          SNDRV_PCM_INFO_SYNC_START |
309                          SNDRV_PCM_INFO_SYNC_APPLPTR),
310         .formats =      (SNDRV_PCM_FMTBIT_S16_LE | 
311                          SNDRV_PCM_FMTBIT_S32_LE),
312         .rates =        (SNDRV_PCM_RATE_32000 |
313                          SNDRV_PCM_RATE_44100 | 
314                          SNDRV_PCM_RATE_48000),
315         .rate_min =     32000,
316         .rate_max =     48000,
317         .channels_min = 2,
318         .channels_max = 2,
319         .buffer_bytes_max = RME32_BUFFER_SIZE,
320         .period_bytes_min = RME32_BLOCK_SIZE,
321         .period_bytes_max = RME32_BLOCK_SIZE,
322         .periods_min =  RME32_BUFFER_SIZE / RME32_BLOCK_SIZE,
323         .periods_max =  RME32_BUFFER_SIZE / RME32_BLOCK_SIZE,
324         .fifo_size =    0,
325 };
326
327 /*
328  * ADAT I/O capabilities (half-duplex mode)
329  */
330 static const struct snd_pcm_hardware snd_rme32_adat_info =
331 {
332         .info =              (SNDRV_PCM_INFO_MMAP_IOMEM |
333                               SNDRV_PCM_INFO_MMAP_VALID |
334                               SNDRV_PCM_INFO_INTERLEAVED |
335                               SNDRV_PCM_INFO_PAUSE |
336                               SNDRV_PCM_INFO_SYNC_START |
337                               SNDRV_PCM_INFO_SYNC_APPLPTR),
338         .formats=            SNDRV_PCM_FMTBIT_S16_LE,
339         .rates =             (SNDRV_PCM_RATE_44100 | 
340                               SNDRV_PCM_RATE_48000),
341         .rate_min =          44100,
342         .rate_max =          48000,
343         .channels_min =      8,
344         .channels_max =      8,
345         .buffer_bytes_max =  RME32_BUFFER_SIZE,
346         .period_bytes_min =  RME32_BLOCK_SIZE,
347         .period_bytes_max =  RME32_BLOCK_SIZE,
348         .periods_min =      RME32_BUFFER_SIZE / RME32_BLOCK_SIZE,
349         .periods_max =      RME32_BUFFER_SIZE / RME32_BLOCK_SIZE,
350         .fifo_size =        0,
351 };
352
353 /*
354  * SPDIF I/O capabilities (full-duplex mode)
355  */
356 static const struct snd_pcm_hardware snd_rme32_spdif_fd_info = {
357         .info =         (SNDRV_PCM_INFO_MMAP |
358                          SNDRV_PCM_INFO_MMAP_VALID |
359                          SNDRV_PCM_INFO_INTERLEAVED | 
360                          SNDRV_PCM_INFO_PAUSE |
361                          SNDRV_PCM_INFO_SYNC_START |
362                          SNDRV_PCM_INFO_SYNC_APPLPTR),
363         .formats =      (SNDRV_PCM_FMTBIT_S16_LE | 
364                          SNDRV_PCM_FMTBIT_S32_LE),
365         .rates =        (SNDRV_PCM_RATE_32000 |
366                          SNDRV_PCM_RATE_44100 | 
367                          SNDRV_PCM_RATE_48000),
368         .rate_min =     32000,
369         .rate_max =     48000,
370         .channels_min = 2,
371         .channels_max = 2,
372         .buffer_bytes_max = RME32_MID_BUFFER_SIZE,
373         .period_bytes_min = RME32_BLOCK_SIZE,
374         .period_bytes_max = RME32_BLOCK_SIZE,
375         .periods_min =  2,
376         .periods_max =  RME32_MID_BUFFER_SIZE / RME32_BLOCK_SIZE,
377         .fifo_size =    0,
378 };
379
380 /*
381  * ADAT I/O capabilities (full-duplex mode)
382  */
383 static const struct snd_pcm_hardware snd_rme32_adat_fd_info =
384 {
385         .info =              (SNDRV_PCM_INFO_MMAP |
386                               SNDRV_PCM_INFO_MMAP_VALID |
387                               SNDRV_PCM_INFO_INTERLEAVED |
388                               SNDRV_PCM_INFO_PAUSE |
389                               SNDRV_PCM_INFO_SYNC_START |
390                               SNDRV_PCM_INFO_SYNC_APPLPTR),
391         .formats=            SNDRV_PCM_FMTBIT_S16_LE,
392         .rates =             (SNDRV_PCM_RATE_44100 | 
393                               SNDRV_PCM_RATE_48000),
394         .rate_min =          44100,
395         .rate_max =          48000,
396         .channels_min =      8,
397         .channels_max =      8,
398         .buffer_bytes_max =  RME32_MID_BUFFER_SIZE,
399         .period_bytes_min =  RME32_BLOCK_SIZE,
400         .period_bytes_max =  RME32_BLOCK_SIZE,
401         .periods_min =      2,
402         .periods_max =      RME32_MID_BUFFER_SIZE / RME32_BLOCK_SIZE,
403         .fifo_size =        0,
404 };
405
406 static void snd_rme32_reset_dac(struct rme32 *rme32)
407 {
408         writel(rme32->wcreg | RME32_WCR_PD,
409                rme32->iobase + RME32_IO_CONTROL_REGISTER);
410         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
411 }
412
413 static int snd_rme32_playback_getrate(struct rme32 * rme32)
414 {
415         int rate;
416
417         rate = ((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_0) & 1) +
418                (((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_1) & 1) << 1);
419         switch (rate) {
420         case 1:
421                 rate = 32000;
422                 break;
423         case 2:
424                 rate = 44100;
425                 break;
426         case 3:
427                 rate = 48000;
428                 break;
429         default:
430                 return -1;
431         }
432         return (rme32->wcreg & RME32_WCR_DS_BM) ? rate << 1 : rate;
433 }
434
435 static int snd_rme32_capture_getrate(struct rme32 * rme32, int *is_adat)
436 {
437         int n;
438
439         *is_adat = 0;
440         if (rme32->rcreg & RME32_RCR_LOCK) { 
441                 /* ADAT rate */
442                 *is_adat = 1;
443         }
444         if (rme32->rcreg & RME32_RCR_ERF) {
445                 return -1;
446         }
447
448         /* S/PDIF rate */
449         n = ((rme32->rcreg >> RME32_RCR_BITPOS_F0) & 1) +
450                 (((rme32->rcreg >> RME32_RCR_BITPOS_F1) & 1) << 1) +
451                 (((rme32->rcreg >> RME32_RCR_BITPOS_F2) & 1) << 2);
452
453         if (RME32_PRO_WITH_8414(rme32))
454                 switch (n) {    /* supporting the CS8414 */
455                 case 0:
456                 case 1:
457                 case 2:
458                         return -1;
459                 case 3:
460                         return 96000;
461                 case 4:
462                         return 88200;
463                 case 5:
464                         return 48000;
465                 case 6:
466                         return 44100;
467                 case 7:
468                         return 32000;
469                 default:
470                         return -1;
471                         break;
472                 } 
473         else
474                 switch (n) {    /* supporting the CS8412 */
475                 case 0:
476                         return -1;
477                 case 1:
478                         return 48000;
479                 case 2:
480                         return 44100;
481                 case 3:
482                         return 32000;
483                 case 4:
484                         return 48000;
485                 case 5:
486                         return 44100;
487                 case 6:
488                         return 44056;
489                 case 7:
490                         return 32000;
491                 default:
492                         break;
493                 }
494         return -1;
495 }
496
497 static int snd_rme32_playback_setrate(struct rme32 * rme32, int rate)
498 {
499         int ds;
500
501         ds = rme32->wcreg & RME32_WCR_DS_BM;
502         switch (rate) {
503         case 32000:
504                 rme32->wcreg &= ~RME32_WCR_DS_BM;
505                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) & 
506                         ~RME32_WCR_FREQ_1;
507                 break;
508         case 44100:
509                 rme32->wcreg &= ~RME32_WCR_DS_BM;
510                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_1) & 
511                         ~RME32_WCR_FREQ_0;
512                 break;
513         case 48000:
514                 rme32->wcreg &= ~RME32_WCR_DS_BM;
515                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) | 
516                         RME32_WCR_FREQ_1;
517                 break;
518         case 64000:
519                 if (rme32->pci->device != PCI_DEVICE_ID_RME_DIGI32_PRO)
520                         return -EINVAL;
521                 rme32->wcreg |= RME32_WCR_DS_BM;
522                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) & 
523                         ~RME32_WCR_FREQ_1;
524                 break;
525         case 88200:
526                 if (rme32->pci->device != PCI_DEVICE_ID_RME_DIGI32_PRO)
527                         return -EINVAL;
528                 rme32->wcreg |= RME32_WCR_DS_BM;
529                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_1) & 
530                         ~RME32_WCR_FREQ_0;
531                 break;
532         case 96000:
533                 if (rme32->pci->device != PCI_DEVICE_ID_RME_DIGI32_PRO)
534                         return -EINVAL;
535                 rme32->wcreg |= RME32_WCR_DS_BM;
536                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) | 
537                         RME32_WCR_FREQ_1;
538                 break;
539         default:
540                 return -EINVAL;
541         }
542         if ((!ds && rme32->wcreg & RME32_WCR_DS_BM) ||
543             (ds && !(rme32->wcreg & RME32_WCR_DS_BM)))
544         {
545                 /* change to/from double-speed: reset the DAC (if available) */
546                 snd_rme32_reset_dac(rme32);
547         } else {
548                 writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
549         }
550         return 0;
551 }
552
553 static int snd_rme32_setclockmode(struct rme32 * rme32, int mode)
554 {
555         switch (mode) {
556         case RME32_CLOCKMODE_SLAVE:
557                 /* AutoSync */
558                 rme32->wcreg = (rme32->wcreg & ~RME32_WCR_FREQ_0) & 
559                         ~RME32_WCR_FREQ_1;
560                 break;
561         case RME32_CLOCKMODE_MASTER_32:
562                 /* Internal 32.0kHz */
563                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) & 
564                         ~RME32_WCR_FREQ_1;
565                 break;
566         case RME32_CLOCKMODE_MASTER_44:
567                 /* Internal 44.1kHz */
568                 rme32->wcreg = (rme32->wcreg & ~RME32_WCR_FREQ_0) | 
569                         RME32_WCR_FREQ_1;
570                 break;
571         case RME32_CLOCKMODE_MASTER_48:
572                 /* Internal 48.0kHz */
573                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) | 
574                         RME32_WCR_FREQ_1;
575                 break;
576         default:
577                 return -EINVAL;
578         }
579         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
580         return 0;
581 }
582
583 static int snd_rme32_getclockmode(struct rme32 * rme32)
584 {
585         return ((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_0) & 1) +
586             (((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_1) & 1) << 1);
587 }
588
589 static int snd_rme32_setinputtype(struct rme32 * rme32, int type)
590 {
591         switch (type) {
592         case RME32_INPUT_OPTICAL:
593                 rme32->wcreg = (rme32->wcreg & ~RME32_WCR_INP_0) & 
594                         ~RME32_WCR_INP_1;
595                 break;
596         case RME32_INPUT_COAXIAL:
597                 rme32->wcreg = (rme32->wcreg | RME32_WCR_INP_0) & 
598                         ~RME32_WCR_INP_1;
599                 break;
600         case RME32_INPUT_INTERNAL:
601                 rme32->wcreg = (rme32->wcreg & ~RME32_WCR_INP_0) | 
602                         RME32_WCR_INP_1;
603                 break;
604         case RME32_INPUT_XLR:
605                 rme32->wcreg = (rme32->wcreg | RME32_WCR_INP_0) | 
606                         RME32_WCR_INP_1;
607                 break;
608         default:
609                 return -EINVAL;
610         }
611         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
612         return 0;
613 }
614
615 static int snd_rme32_getinputtype(struct rme32 * rme32)
616 {
617         return ((rme32->wcreg >> RME32_WCR_BITPOS_INP_0) & 1) +
618             (((rme32->wcreg >> RME32_WCR_BITPOS_INP_1) & 1) << 1);
619 }
620
621 static void
622 snd_rme32_setframelog(struct rme32 * rme32, int n_channels, int is_playback)
623 {
624         int frlog;
625
626         if (n_channels == 2) {
627                 frlog = 1;
628         } else {
629                 /* assume 8 channels */
630                 frlog = 3;
631         }
632         if (is_playback) {
633                 frlog += (rme32->wcreg & RME32_WCR_MODE24) ? 2 : 1;
634                 rme32->playback_frlog = frlog;
635         } else {
636                 frlog += (rme32->wcreg & RME32_WCR_MODE24) ? 2 : 1;
637                 rme32->capture_frlog = frlog;
638         }
639 }
640
641 static int snd_rme32_setformat(struct rme32 *rme32, snd_pcm_format_t format)
642 {
643         switch (format) {
644         case SNDRV_PCM_FORMAT_S16_LE:
645                 rme32->wcreg &= ~RME32_WCR_MODE24;
646                 break;
647         case SNDRV_PCM_FORMAT_S32_LE:
648                 rme32->wcreg |= RME32_WCR_MODE24;
649                 break;
650         default:
651                 return -EINVAL;
652         }
653         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
654         return 0;
655 }
656
657 static int
658 snd_rme32_playback_hw_params(struct snd_pcm_substream *substream,
659                              struct snd_pcm_hw_params *params)
660 {
661         int err, rate, dummy;
662         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
663         struct snd_pcm_runtime *runtime = substream->runtime;
664
665         if (rme32->fullduplex_mode) {
666                 err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
667                 if (err < 0)
668                         return err;
669         } else {
670                 runtime->dma_area = (void __force *)(rme32->iobase +
671                                                      RME32_IO_DATA_BUFFER);
672                 runtime->dma_addr = rme32->port + RME32_IO_DATA_BUFFER;
673                 runtime->dma_bytes = RME32_BUFFER_SIZE;
674         }
675
676         spin_lock_irq(&rme32->lock);
677         if ((rme32->rcreg & RME32_RCR_KMODE) &&
678             (rate = snd_rme32_capture_getrate(rme32, &dummy)) > 0) {
679                 /* AutoSync */
680                 if ((int)params_rate(params) != rate) {
681                         spin_unlock_irq(&rme32->lock);
682                         return -EIO;
683                 }
684         } else if ((err = snd_rme32_playback_setrate(rme32, params_rate(params))) < 0) {
685                 spin_unlock_irq(&rme32->lock);
686                 return err;
687         }
688         if ((err = snd_rme32_setformat(rme32, params_format(params))) < 0) {
689                 spin_unlock_irq(&rme32->lock);
690                 return err;
691         }
692
693         snd_rme32_setframelog(rme32, params_channels(params), 1);
694         if (rme32->capture_periodsize != 0) {
695                 if (params_period_size(params) << rme32->playback_frlog != rme32->capture_periodsize) {
696                         spin_unlock_irq(&rme32->lock);
697                         return -EBUSY;
698                 }
699         }
700         rme32->playback_periodsize = params_period_size(params) << rme32->playback_frlog;
701         /* S/PDIF setup */
702         if ((rme32->wcreg & RME32_WCR_ADAT) == 0) {
703                 rme32->wcreg &= ~(RME32_WCR_PRO | RME32_WCR_EMP);
704                 rme32->wcreg |= rme32->wcreg_spdif_stream;
705                 writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
706         }
707         spin_unlock_irq(&rme32->lock);
708
709         return 0;
710 }
711
712 static int
713 snd_rme32_capture_hw_params(struct snd_pcm_substream *substream,
714                             struct snd_pcm_hw_params *params)
715 {
716         int err, isadat, rate;
717         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
718         struct snd_pcm_runtime *runtime = substream->runtime;
719
720         if (rme32->fullduplex_mode) {
721                 err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
722                 if (err < 0)
723                         return err;
724         } else {
725                 runtime->dma_area = (void __force *)rme32->iobase +
726                                         RME32_IO_DATA_BUFFER;
727                 runtime->dma_addr = rme32->port + RME32_IO_DATA_BUFFER;
728                 runtime->dma_bytes = RME32_BUFFER_SIZE;
729         }
730
731         spin_lock_irq(&rme32->lock);
732         /* enable AutoSync for record-preparing */
733         rme32->wcreg |= RME32_WCR_AUTOSYNC;
734         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
735
736         if ((err = snd_rme32_setformat(rme32, params_format(params))) < 0) {
737                 spin_unlock_irq(&rme32->lock);
738                 return err;
739         }
740         if ((err = snd_rme32_playback_setrate(rme32, params_rate(params))) < 0) {
741                 spin_unlock_irq(&rme32->lock);
742                 return err;
743         }
744         if ((rate = snd_rme32_capture_getrate(rme32, &isadat)) > 0) {
745                 if ((int)params_rate(params) != rate) {
746                         spin_unlock_irq(&rme32->lock);
747                         return -EIO;                    
748                 }
749                 if ((isadat && runtime->hw.channels_min == 2) ||
750                     (!isadat && runtime->hw.channels_min == 8)) {
751                         spin_unlock_irq(&rme32->lock);
752                         return -EIO;
753                 }
754         }
755         /* AutoSync off for recording */
756         rme32->wcreg &= ~RME32_WCR_AUTOSYNC;
757         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
758
759         snd_rme32_setframelog(rme32, params_channels(params), 0);
760         if (rme32->playback_periodsize != 0) {
761                 if (params_period_size(params) << rme32->capture_frlog !=
762                     rme32->playback_periodsize) {
763                         spin_unlock_irq(&rme32->lock);
764                         return -EBUSY;
765                 }
766         }
767         rme32->capture_periodsize =
768             params_period_size(params) << rme32->capture_frlog;
769         spin_unlock_irq(&rme32->lock);
770
771         return 0;
772 }
773
774 static int snd_rme32_pcm_hw_free(struct snd_pcm_substream *substream)
775 {
776         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
777         if (! rme32->fullduplex_mode)
778                 return 0;
779         return snd_pcm_lib_free_pages(substream);
780 }
781
782 static void snd_rme32_pcm_start(struct rme32 * rme32, int from_pause)
783 {
784         if (!from_pause) {
785                 writel(0, rme32->iobase + RME32_IO_RESET_POS);
786         }
787
788         rme32->wcreg |= RME32_WCR_START;
789         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
790 }
791
792 static void snd_rme32_pcm_stop(struct rme32 * rme32, int to_pause)
793 {
794         /*
795          * Check if there is an unconfirmed IRQ, if so confirm it, or else
796          * the hardware will not stop generating interrupts
797          */
798         rme32->rcreg = readl(rme32->iobase + RME32_IO_CONTROL_REGISTER);
799         if (rme32->rcreg & RME32_RCR_IRQ) {
800                 writel(0, rme32->iobase + RME32_IO_CONFIRM_ACTION_IRQ);
801         }
802         rme32->wcreg &= ~RME32_WCR_START;
803         if (rme32->wcreg & RME32_WCR_SEL)
804                 rme32->wcreg |= RME32_WCR_MUTE;
805         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
806         if (! to_pause)
807                 writel(0, rme32->iobase + RME32_IO_RESET_POS);
808 }
809
810 static irqreturn_t snd_rme32_interrupt(int irq, void *dev_id)
811 {
812         struct rme32 *rme32 = (struct rme32 *) dev_id;
813
814         rme32->rcreg = readl(rme32->iobase + RME32_IO_CONTROL_REGISTER);
815         if (!(rme32->rcreg & RME32_RCR_IRQ)) {
816                 return IRQ_NONE;
817         } else {
818                 if (rme32->capture_substream) {
819                         snd_pcm_period_elapsed(rme32->capture_substream);
820                 }
821                 if (rme32->playback_substream) {
822                         snd_pcm_period_elapsed(rme32->playback_substream);
823                 }
824                 writel(0, rme32->iobase + RME32_IO_CONFIRM_ACTION_IRQ);
825         }
826         return IRQ_HANDLED;
827 }
828
829 static const unsigned int period_bytes[] = { RME32_BLOCK_SIZE };
830
831 static const struct snd_pcm_hw_constraint_list hw_constraints_period_bytes = {
832         .count = ARRAY_SIZE(period_bytes),
833         .list = period_bytes,
834         .mask = 0
835 };
836
837 static void snd_rme32_set_buffer_constraint(struct rme32 *rme32, struct snd_pcm_runtime *runtime)
838 {
839         if (! rme32->fullduplex_mode) {
840                 snd_pcm_hw_constraint_single(runtime,
841                                              SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
842                                              RME32_BUFFER_SIZE);
843                 snd_pcm_hw_constraint_list(runtime, 0,
844                                            SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
845                                            &hw_constraints_period_bytes);
846         }
847 }
848
849 static int snd_rme32_playback_spdif_open(struct snd_pcm_substream *substream)
850 {
851         int rate, dummy;
852         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
853         struct snd_pcm_runtime *runtime = substream->runtime;
854
855         snd_pcm_set_sync(substream);
856
857         spin_lock_irq(&rme32->lock);
858         if (rme32->playback_substream != NULL) {
859                 spin_unlock_irq(&rme32->lock);
860                 return -EBUSY;
861         }
862         rme32->wcreg &= ~RME32_WCR_ADAT;
863         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
864         rme32->playback_substream = substream;
865         spin_unlock_irq(&rme32->lock);
866
867         if (rme32->fullduplex_mode)
868                 runtime->hw = snd_rme32_spdif_fd_info;
869         else
870                 runtime->hw = snd_rme32_spdif_info;
871         if (rme32->pci->device == PCI_DEVICE_ID_RME_DIGI32_PRO) {
872                 runtime->hw.rates |= SNDRV_PCM_RATE_64000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000;
873                 runtime->hw.rate_max = 96000;
874         }
875         if ((rme32->rcreg & RME32_RCR_KMODE) &&
876             (rate = snd_rme32_capture_getrate(rme32, &dummy)) > 0) {
877                 /* AutoSync */
878                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
879                 runtime->hw.rate_min = rate;
880                 runtime->hw.rate_max = rate;
881         }       
882
883         snd_rme32_set_buffer_constraint(rme32, runtime);
884
885         rme32->wcreg_spdif_stream = rme32->wcreg_spdif;
886         rme32->spdif_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
887         snd_ctl_notify(rme32->card, SNDRV_CTL_EVENT_MASK_VALUE |
888                        SNDRV_CTL_EVENT_MASK_INFO, &rme32->spdif_ctl->id);
889         return 0;
890 }
891
892 static int snd_rme32_capture_spdif_open(struct snd_pcm_substream *substream)
893 {
894         int isadat, rate;
895         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
896         struct snd_pcm_runtime *runtime = substream->runtime;
897
898         snd_pcm_set_sync(substream);
899
900         spin_lock_irq(&rme32->lock);
901         if (rme32->capture_substream != NULL) {
902                 spin_unlock_irq(&rme32->lock);
903                 return -EBUSY;
904         }
905         rme32->capture_substream = substream;
906         spin_unlock_irq(&rme32->lock);
907
908         if (rme32->fullduplex_mode)
909                 runtime->hw = snd_rme32_spdif_fd_info;
910         else
911                 runtime->hw = snd_rme32_spdif_info;
912         if (RME32_PRO_WITH_8414(rme32)) {
913                 runtime->hw.rates |= SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000;
914                 runtime->hw.rate_max = 96000;
915         }
916         if ((rate = snd_rme32_capture_getrate(rme32, &isadat)) > 0) {
917                 if (isadat) {
918                         return -EIO;
919                 }
920                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
921                 runtime->hw.rate_min = rate;
922                 runtime->hw.rate_max = rate;
923         }
924
925         snd_rme32_set_buffer_constraint(rme32, runtime);
926
927         return 0;
928 }
929
930 static int
931 snd_rme32_playback_adat_open(struct snd_pcm_substream *substream)
932 {
933         int rate, dummy;
934         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
935         struct snd_pcm_runtime *runtime = substream->runtime;
936         
937         snd_pcm_set_sync(substream);
938
939         spin_lock_irq(&rme32->lock);    
940         if (rme32->playback_substream != NULL) {
941                 spin_unlock_irq(&rme32->lock);
942                 return -EBUSY;
943         }
944         rme32->wcreg |= RME32_WCR_ADAT;
945         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
946         rme32->playback_substream = substream;
947         spin_unlock_irq(&rme32->lock);
948         
949         if (rme32->fullduplex_mode)
950                 runtime->hw = snd_rme32_adat_fd_info;
951         else
952                 runtime->hw = snd_rme32_adat_info;
953         if ((rme32->rcreg & RME32_RCR_KMODE) &&
954             (rate = snd_rme32_capture_getrate(rme32, &dummy)) > 0) {
955                 /* AutoSync */
956                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
957                 runtime->hw.rate_min = rate;
958                 runtime->hw.rate_max = rate;
959         }        
960
961         snd_rme32_set_buffer_constraint(rme32, runtime);
962         return 0;
963 }
964
965 static int
966 snd_rme32_capture_adat_open(struct snd_pcm_substream *substream)
967 {
968         int isadat, rate;
969         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
970         struct snd_pcm_runtime *runtime = substream->runtime;
971
972         if (rme32->fullduplex_mode)
973                 runtime->hw = snd_rme32_adat_fd_info;
974         else
975                 runtime->hw = snd_rme32_adat_info;
976         if ((rate = snd_rme32_capture_getrate(rme32, &isadat)) > 0) {
977                 if (!isadat) {
978                         return -EIO;
979                 }
980                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
981                 runtime->hw.rate_min = rate;
982                 runtime->hw.rate_max = rate;
983         }
984
985         snd_pcm_set_sync(substream);
986         
987         spin_lock_irq(&rme32->lock);    
988         if (rme32->capture_substream != NULL) {
989                 spin_unlock_irq(&rme32->lock);
990                 return -EBUSY;
991         }
992         rme32->capture_substream = substream;
993         spin_unlock_irq(&rme32->lock);
994
995         snd_rme32_set_buffer_constraint(rme32, runtime);
996         return 0;
997 }
998
999 static int snd_rme32_playback_close(struct snd_pcm_substream *substream)
1000 {
1001         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1002         int spdif = 0;
1003
1004         spin_lock_irq(&rme32->lock);
1005         rme32->playback_substream = NULL;
1006         rme32->playback_periodsize = 0;
1007         spdif = (rme32->wcreg & RME32_WCR_ADAT) == 0;
1008         spin_unlock_irq(&rme32->lock);
1009         if (spdif) {
1010                 rme32->spdif_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1011                 snd_ctl_notify(rme32->card, SNDRV_CTL_EVENT_MASK_VALUE |
1012                                SNDRV_CTL_EVENT_MASK_INFO,
1013                                &rme32->spdif_ctl->id);
1014         }
1015         return 0;
1016 }
1017
1018 static int snd_rme32_capture_close(struct snd_pcm_substream *substream)
1019 {
1020         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1021
1022         spin_lock_irq(&rme32->lock);
1023         rme32->capture_substream = NULL;
1024         rme32->capture_periodsize = 0;
1025         spin_unlock_irq(&rme32->lock);
1026         return 0;
1027 }
1028
1029 static int snd_rme32_playback_prepare(struct snd_pcm_substream *substream)
1030 {
1031         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1032
1033         spin_lock_irq(&rme32->lock);
1034         if (rme32->fullduplex_mode) {
1035                 memset(&rme32->playback_pcm, 0, sizeof(rme32->playback_pcm));
1036                 rme32->playback_pcm.hw_buffer_size = RME32_BUFFER_SIZE;
1037                 rme32->playback_pcm.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1038         } else {
1039                 writel(0, rme32->iobase + RME32_IO_RESET_POS);
1040         }
1041         if (rme32->wcreg & RME32_WCR_SEL)
1042                 rme32->wcreg &= ~RME32_WCR_MUTE;
1043         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
1044         spin_unlock_irq(&rme32->lock);
1045         return 0;
1046 }
1047
1048 static int snd_rme32_capture_prepare(struct snd_pcm_substream *substream)
1049 {
1050         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1051
1052         spin_lock_irq(&rme32->lock);
1053         if (rme32->fullduplex_mode) {
1054                 memset(&rme32->capture_pcm, 0, sizeof(rme32->capture_pcm));
1055                 rme32->capture_pcm.hw_buffer_size = RME32_BUFFER_SIZE;
1056                 rme32->capture_pcm.hw_queue_size = RME32_BUFFER_SIZE / 2;
1057                 rme32->capture_pcm.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1058         } else {
1059                 writel(0, rme32->iobase + RME32_IO_RESET_POS);
1060         }
1061         spin_unlock_irq(&rme32->lock);
1062         return 0;
1063 }
1064
1065 static int
1066 snd_rme32_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1067 {
1068         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1069         struct snd_pcm_substream *s;
1070
1071         spin_lock(&rme32->lock);
1072         snd_pcm_group_for_each_entry(s, substream) {
1073                 if (s != rme32->playback_substream &&
1074                     s != rme32->capture_substream)
1075                         continue;
1076                 switch (cmd) {
1077                 case SNDRV_PCM_TRIGGER_START:
1078                         rme32->running |= (1 << s->stream);
1079                         if (rme32->fullduplex_mode) {
1080                                 /* remember the current DMA position */
1081                                 if (s == rme32->playback_substream) {
1082                                         rme32->playback_pcm.hw_io =
1083                                         rme32->playback_pcm.hw_data = snd_rme32_pcm_byteptr(rme32);
1084                                 } else {
1085                                         rme32->capture_pcm.hw_io =
1086                                         rme32->capture_pcm.hw_data = snd_rme32_pcm_byteptr(rme32);
1087                                 }
1088                         }
1089                         break;
1090                 case SNDRV_PCM_TRIGGER_STOP:
1091                         rme32->running &= ~(1 << s->stream);
1092                         break;
1093                 }
1094                 snd_pcm_trigger_done(s, substream);
1095         }
1096         
1097         switch (cmd) {
1098         case SNDRV_PCM_TRIGGER_START:
1099                 if (rme32->running && ! RME32_ISWORKING(rme32))
1100                         snd_rme32_pcm_start(rme32, 0);
1101                 break;
1102         case SNDRV_PCM_TRIGGER_STOP:
1103                 if (! rme32->running && RME32_ISWORKING(rme32))
1104                         snd_rme32_pcm_stop(rme32, 0);
1105                 break;
1106         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1107                 if (rme32->running && RME32_ISWORKING(rme32))
1108                         snd_rme32_pcm_stop(rme32, 1);
1109                 break;
1110         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1111                 if (rme32->running && ! RME32_ISWORKING(rme32))
1112                         snd_rme32_pcm_start(rme32, 1);
1113                 break;
1114         }
1115         spin_unlock(&rme32->lock);
1116         return 0;
1117 }
1118
1119 /* pointer callback for halfduplex mode */
1120 static snd_pcm_uframes_t
1121 snd_rme32_playback_pointer(struct snd_pcm_substream *substream)
1122 {
1123         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1124         return snd_rme32_pcm_byteptr(rme32) >> rme32->playback_frlog;
1125 }
1126
1127 static snd_pcm_uframes_t
1128 snd_rme32_capture_pointer(struct snd_pcm_substream *substream)
1129 {
1130         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1131         return snd_rme32_pcm_byteptr(rme32) >> rme32->capture_frlog;
1132 }
1133
1134
1135 /* ack and pointer callbacks for fullduplex mode */
1136 static void snd_rme32_pb_trans_copy(struct snd_pcm_substream *substream,
1137                                     struct snd_pcm_indirect *rec, size_t bytes)
1138 {
1139         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1140         memcpy_toio(rme32->iobase + RME32_IO_DATA_BUFFER + rec->hw_data,
1141                     substream->runtime->dma_area + rec->sw_data, bytes);
1142 }
1143
1144 static int snd_rme32_playback_fd_ack(struct snd_pcm_substream *substream)
1145 {
1146         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1147         struct snd_pcm_indirect *rec, *cprec;
1148
1149         rec = &rme32->playback_pcm;
1150         cprec = &rme32->capture_pcm;
1151         spin_lock(&rme32->lock);
1152         rec->hw_queue_size = RME32_BUFFER_SIZE;
1153         if (rme32->running & (1 << SNDRV_PCM_STREAM_CAPTURE))
1154                 rec->hw_queue_size -= cprec->hw_ready;
1155         spin_unlock(&rme32->lock);
1156         return snd_pcm_indirect_playback_transfer(substream, rec,
1157                                                   snd_rme32_pb_trans_copy);
1158 }
1159
1160 static void snd_rme32_cp_trans_copy(struct snd_pcm_substream *substream,
1161                                     struct snd_pcm_indirect *rec, size_t bytes)
1162 {
1163         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1164         memcpy_fromio(substream->runtime->dma_area + rec->sw_data,
1165                       rme32->iobase + RME32_IO_DATA_BUFFER + rec->hw_data,
1166                       bytes);
1167 }
1168
1169 static int snd_rme32_capture_fd_ack(struct snd_pcm_substream *substream)
1170 {
1171         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1172         return snd_pcm_indirect_capture_transfer(substream, &rme32->capture_pcm,
1173                                                  snd_rme32_cp_trans_copy);
1174 }
1175
1176 static snd_pcm_uframes_t
1177 snd_rme32_playback_fd_pointer(struct snd_pcm_substream *substream)
1178 {
1179         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1180         return snd_pcm_indirect_playback_pointer(substream, &rme32->playback_pcm,
1181                                                  snd_rme32_pcm_byteptr(rme32));
1182 }
1183
1184 static snd_pcm_uframes_t
1185 snd_rme32_capture_fd_pointer(struct snd_pcm_substream *substream)
1186 {
1187         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1188         return snd_pcm_indirect_capture_pointer(substream, &rme32->capture_pcm,
1189                                                 snd_rme32_pcm_byteptr(rme32));
1190 }
1191
1192 /* for halfduplex mode */
1193 static const struct snd_pcm_ops snd_rme32_playback_spdif_ops = {
1194         .open =         snd_rme32_playback_spdif_open,
1195         .close =        snd_rme32_playback_close,
1196         .ioctl =        snd_pcm_lib_ioctl,
1197         .hw_params =    snd_rme32_playback_hw_params,
1198         .hw_free =      snd_rme32_pcm_hw_free,
1199         .prepare =      snd_rme32_playback_prepare,
1200         .trigger =      snd_rme32_pcm_trigger,
1201         .pointer =      snd_rme32_playback_pointer,
1202         .copy_user =    snd_rme32_playback_copy,
1203         .copy_kernel =  snd_rme32_playback_copy_kernel,
1204         .fill_silence = snd_rme32_playback_silence,
1205         .mmap =         snd_pcm_lib_mmap_iomem,
1206 };
1207
1208 static const struct snd_pcm_ops snd_rme32_capture_spdif_ops = {
1209         .open =         snd_rme32_capture_spdif_open,
1210         .close =        snd_rme32_capture_close,
1211         .ioctl =        snd_pcm_lib_ioctl,
1212         .hw_params =    snd_rme32_capture_hw_params,
1213         .hw_free =      snd_rme32_pcm_hw_free,
1214         .prepare =      snd_rme32_capture_prepare,
1215         .trigger =      snd_rme32_pcm_trigger,
1216         .pointer =      snd_rme32_capture_pointer,
1217         .copy_user =    snd_rme32_capture_copy,
1218         .copy_kernel =  snd_rme32_capture_copy_kernel,
1219         .mmap =         snd_pcm_lib_mmap_iomem,
1220 };
1221
1222 static const struct snd_pcm_ops snd_rme32_playback_adat_ops = {
1223         .open =         snd_rme32_playback_adat_open,
1224         .close =        snd_rme32_playback_close,
1225         .ioctl =        snd_pcm_lib_ioctl,
1226         .hw_params =    snd_rme32_playback_hw_params,
1227         .prepare =      snd_rme32_playback_prepare,
1228         .trigger =      snd_rme32_pcm_trigger,
1229         .pointer =      snd_rme32_playback_pointer,
1230         .copy_user =    snd_rme32_playback_copy,
1231         .copy_kernel =  snd_rme32_playback_copy_kernel,
1232         .fill_silence = snd_rme32_playback_silence,
1233         .mmap =         snd_pcm_lib_mmap_iomem,
1234 };
1235
1236 static const struct snd_pcm_ops snd_rme32_capture_adat_ops = {
1237         .open =         snd_rme32_capture_adat_open,
1238         .close =        snd_rme32_capture_close,
1239         .ioctl =        snd_pcm_lib_ioctl,
1240         .hw_params =    snd_rme32_capture_hw_params,
1241         .prepare =      snd_rme32_capture_prepare,
1242         .trigger =      snd_rme32_pcm_trigger,
1243         .pointer =      snd_rme32_capture_pointer,
1244         .copy_user =    snd_rme32_capture_copy,
1245         .copy_kernel =  snd_rme32_capture_copy_kernel,
1246         .mmap =         snd_pcm_lib_mmap_iomem,
1247 };
1248
1249 /* for fullduplex mode */
1250 static const struct snd_pcm_ops snd_rme32_playback_spdif_fd_ops = {
1251         .open =         snd_rme32_playback_spdif_open,
1252         .close =        snd_rme32_playback_close,
1253         .ioctl =        snd_pcm_lib_ioctl,
1254         .hw_params =    snd_rme32_playback_hw_params,
1255         .hw_free =      snd_rme32_pcm_hw_free,
1256         .prepare =      snd_rme32_playback_prepare,
1257         .trigger =      snd_rme32_pcm_trigger,
1258         .pointer =      snd_rme32_playback_fd_pointer,
1259         .ack =          snd_rme32_playback_fd_ack,
1260 };
1261
1262 static const struct snd_pcm_ops snd_rme32_capture_spdif_fd_ops = {
1263         .open =         snd_rme32_capture_spdif_open,
1264         .close =        snd_rme32_capture_close,
1265         .ioctl =        snd_pcm_lib_ioctl,
1266         .hw_params =    snd_rme32_capture_hw_params,
1267         .hw_free =      snd_rme32_pcm_hw_free,
1268         .prepare =      snd_rme32_capture_prepare,
1269         .trigger =      snd_rme32_pcm_trigger,
1270         .pointer =      snd_rme32_capture_fd_pointer,
1271         .ack =          snd_rme32_capture_fd_ack,
1272 };
1273
1274 static const struct snd_pcm_ops snd_rme32_playback_adat_fd_ops = {
1275         .open =         snd_rme32_playback_adat_open,
1276         .close =        snd_rme32_playback_close,
1277         .ioctl =        snd_pcm_lib_ioctl,
1278         .hw_params =    snd_rme32_playback_hw_params,
1279         .prepare =      snd_rme32_playback_prepare,
1280         .trigger =      snd_rme32_pcm_trigger,
1281         .pointer =      snd_rme32_playback_fd_pointer,
1282         .ack =          snd_rme32_playback_fd_ack,
1283 };
1284
1285 static const struct snd_pcm_ops snd_rme32_capture_adat_fd_ops = {
1286         .open =         snd_rme32_capture_adat_open,
1287         .close =        snd_rme32_capture_close,
1288         .ioctl =        snd_pcm_lib_ioctl,
1289         .hw_params =    snd_rme32_capture_hw_params,
1290         .prepare =      snd_rme32_capture_prepare,
1291         .trigger =      snd_rme32_pcm_trigger,
1292         .pointer =      snd_rme32_capture_fd_pointer,
1293         .ack =          snd_rme32_capture_fd_ack,
1294 };
1295
1296 static void snd_rme32_free(void *private_data)
1297 {
1298         struct rme32 *rme32 = (struct rme32 *) private_data;
1299
1300         if (rme32 == NULL) {
1301                 return;
1302         }
1303         if (rme32->irq >= 0) {
1304                 snd_rme32_pcm_stop(rme32, 0);
1305                 free_irq(rme32->irq, (void *) rme32);
1306                 rme32->irq = -1;
1307         }
1308         if (rme32->iobase) {
1309                 iounmap(rme32->iobase);
1310                 rme32->iobase = NULL;
1311         }
1312         if (rme32->port) {
1313                 pci_release_regions(rme32->pci);
1314                 rme32->port = 0;
1315         }
1316         pci_disable_device(rme32->pci);
1317 }
1318
1319 static void snd_rme32_free_spdif_pcm(struct snd_pcm *pcm)
1320 {
1321         struct rme32 *rme32 = (struct rme32 *) pcm->private_data;
1322         rme32->spdif_pcm = NULL;
1323 }
1324
1325 static void
1326 snd_rme32_free_adat_pcm(struct snd_pcm *pcm)
1327 {
1328         struct rme32 *rme32 = (struct rme32 *) pcm->private_data;
1329         rme32->adat_pcm = NULL;
1330 }
1331
1332 static int snd_rme32_create(struct rme32 *rme32)
1333 {
1334         struct pci_dev *pci = rme32->pci;
1335         int err;
1336
1337         rme32->irq = -1;
1338         spin_lock_init(&rme32->lock);
1339
1340         if ((err = pci_enable_device(pci)) < 0)
1341                 return err;
1342
1343         if ((err = pci_request_regions(pci, "RME32")) < 0)
1344                 return err;
1345         rme32->port = pci_resource_start(rme32->pci, 0);
1346
1347         rme32->iobase = ioremap_nocache(rme32->port, RME32_IO_SIZE);
1348         if (!rme32->iobase) {
1349                 dev_err(rme32->card->dev,
1350                         "unable to remap memory region 0x%lx-0x%lx\n",
1351                            rme32->port, rme32->port + RME32_IO_SIZE - 1);
1352                 return -ENOMEM;
1353         }
1354
1355         if (request_irq(pci->irq, snd_rme32_interrupt, IRQF_SHARED,
1356                         KBUILD_MODNAME, rme32)) {
1357                 dev_err(rme32->card->dev, "unable to grab IRQ %d\n", pci->irq);
1358                 return -EBUSY;
1359         }
1360         rme32->irq = pci->irq;
1361
1362         /* read the card's revision number */
1363         pci_read_config_byte(pci, 8, &rme32->rev);
1364
1365         /* set up ALSA pcm device for S/PDIF */
1366         if ((err = snd_pcm_new(rme32->card, "Digi32 IEC958", 0, 1, 1, &rme32->spdif_pcm)) < 0) {
1367                 return err;
1368         }
1369         rme32->spdif_pcm->private_data = rme32;
1370         rme32->spdif_pcm->private_free = snd_rme32_free_spdif_pcm;
1371         strcpy(rme32->spdif_pcm->name, "Digi32 IEC958");
1372         if (rme32->fullduplex_mode) {
1373                 snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_PLAYBACK,
1374                                 &snd_rme32_playback_spdif_fd_ops);
1375                 snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_CAPTURE,
1376                                 &snd_rme32_capture_spdif_fd_ops);
1377                 snd_pcm_lib_preallocate_pages_for_all(rme32->spdif_pcm, SNDRV_DMA_TYPE_CONTINUOUS,
1378                                                       NULL,
1379                                                       0, RME32_MID_BUFFER_SIZE);
1380                 rme32->spdif_pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
1381         } else {
1382                 snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_PLAYBACK,
1383                                 &snd_rme32_playback_spdif_ops);
1384                 snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_CAPTURE,
1385                                 &snd_rme32_capture_spdif_ops);
1386                 rme32->spdif_pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
1387         }
1388
1389         /* set up ALSA pcm device for ADAT */
1390         if ((pci->device == PCI_DEVICE_ID_RME_DIGI32) ||
1391             (pci->device == PCI_DEVICE_ID_RME_DIGI32_PRO)) {
1392                 /* ADAT is not available on DIGI32 and DIGI32 Pro */
1393                 rme32->adat_pcm = NULL;
1394         }
1395         else {
1396                 if ((err = snd_pcm_new(rme32->card, "Digi32 ADAT", 1,
1397                                        1, 1, &rme32->adat_pcm)) < 0)
1398                 {
1399                         return err;
1400                 }               
1401                 rme32->adat_pcm->private_data = rme32;
1402                 rme32->adat_pcm->private_free = snd_rme32_free_adat_pcm;
1403                 strcpy(rme32->adat_pcm->name, "Digi32 ADAT");
1404                 if (rme32->fullduplex_mode) {
1405                         snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_PLAYBACK, 
1406                                         &snd_rme32_playback_adat_fd_ops);
1407                         snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_CAPTURE, 
1408                                         &snd_rme32_capture_adat_fd_ops);
1409                         snd_pcm_lib_preallocate_pages_for_all(rme32->adat_pcm, SNDRV_DMA_TYPE_CONTINUOUS,
1410                                                               NULL,
1411                                                               0, RME32_MID_BUFFER_SIZE);
1412                         rme32->adat_pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
1413                 } else {
1414                         snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_PLAYBACK, 
1415                                         &snd_rme32_playback_adat_ops);
1416                         snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_CAPTURE, 
1417                                         &snd_rme32_capture_adat_ops);
1418                         rme32->adat_pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
1419                 }
1420         }
1421
1422
1423         rme32->playback_periodsize = 0;
1424         rme32->capture_periodsize = 0;
1425
1426         /* make sure playback/capture is stopped, if by some reason active */
1427         snd_rme32_pcm_stop(rme32, 0);
1428
1429         /* reset DAC */
1430         snd_rme32_reset_dac(rme32);
1431
1432         /* reset buffer pointer */
1433         writel(0, rme32->iobase + RME32_IO_RESET_POS);
1434
1435         /* set default values in registers */
1436         rme32->wcreg = RME32_WCR_SEL |   /* normal playback */
1437                 RME32_WCR_INP_0 | /* input select */
1438                 RME32_WCR_MUTE;  /* muting on */
1439         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
1440
1441
1442         /* init switch interface */
1443         if ((err = snd_rme32_create_switches(rme32->card, rme32)) < 0) {
1444                 return err;
1445         }
1446
1447         /* init proc interface */
1448         snd_rme32_proc_init(rme32);
1449
1450         rme32->capture_substream = NULL;
1451         rme32->playback_substream = NULL;
1452
1453         return 0;
1454 }
1455
1456 /*
1457  * proc interface
1458  */
1459
1460 static void
1461 snd_rme32_proc_read(struct snd_info_entry * entry, struct snd_info_buffer *buffer)
1462 {
1463         int n;
1464         struct rme32 *rme32 = (struct rme32 *) entry->private_data;
1465
1466         rme32->rcreg = readl(rme32->iobase + RME32_IO_CONTROL_REGISTER);
1467
1468         snd_iprintf(buffer, rme32->card->longname);
1469         snd_iprintf(buffer, " (index #%d)\n", rme32->card->number + 1);
1470
1471         snd_iprintf(buffer, "\nGeneral settings\n");
1472         if (rme32->fullduplex_mode)
1473                 snd_iprintf(buffer, "  Full-duplex mode\n");
1474         else
1475                 snd_iprintf(buffer, "  Half-duplex mode\n");
1476         if (RME32_PRO_WITH_8414(rme32)) {
1477                 snd_iprintf(buffer, "  receiver: CS8414\n");
1478         } else {
1479                 snd_iprintf(buffer, "  receiver: CS8412\n");
1480         }
1481         if (rme32->wcreg & RME32_WCR_MODE24) {
1482                 snd_iprintf(buffer, "  format: 24 bit");
1483         } else {
1484                 snd_iprintf(buffer, "  format: 16 bit");
1485         }
1486         if (rme32->wcreg & RME32_WCR_MONO) {
1487                 snd_iprintf(buffer, ", Mono\n");
1488         } else {
1489                 snd_iprintf(buffer, ", Stereo\n");
1490         }
1491
1492         snd_iprintf(buffer, "\nInput settings\n");
1493         switch (snd_rme32_getinputtype(rme32)) {
1494         case RME32_INPUT_OPTICAL:
1495                 snd_iprintf(buffer, "  input: optical");
1496                 break;
1497         case RME32_INPUT_COAXIAL:
1498                 snd_iprintf(buffer, "  input: coaxial");
1499                 break;
1500         case RME32_INPUT_INTERNAL:
1501                 snd_iprintf(buffer, "  input: internal");
1502                 break;
1503         case RME32_INPUT_XLR:
1504                 snd_iprintf(buffer, "  input: XLR");
1505                 break;
1506         }
1507         if (snd_rme32_capture_getrate(rme32, &n) < 0) {
1508                 snd_iprintf(buffer, "\n  sample rate: no valid signal\n");
1509         } else {
1510                 if (n) {
1511                         snd_iprintf(buffer, " (8 channels)\n");
1512                 } else {
1513                         snd_iprintf(buffer, " (2 channels)\n");
1514                 }
1515                 snd_iprintf(buffer, "  sample rate: %d Hz\n",
1516                             snd_rme32_capture_getrate(rme32, &n));
1517         }
1518
1519         snd_iprintf(buffer, "\nOutput settings\n");
1520         if (rme32->wcreg & RME32_WCR_SEL) {
1521                 snd_iprintf(buffer, "  output signal: normal playback");
1522         } else {
1523                 snd_iprintf(buffer, "  output signal: same as input");
1524         }
1525         if (rme32->wcreg & RME32_WCR_MUTE) {
1526                 snd_iprintf(buffer, " (muted)\n");
1527         } else {
1528                 snd_iprintf(buffer, "\n");
1529         }
1530
1531         /* master output frequency */
1532         if (!
1533             ((!(rme32->wcreg & RME32_WCR_FREQ_0))
1534              && (!(rme32->wcreg & RME32_WCR_FREQ_1)))) {
1535                 snd_iprintf(buffer, "  sample rate: %d Hz\n",
1536                             snd_rme32_playback_getrate(rme32));
1537         }
1538         if (rme32->rcreg & RME32_RCR_KMODE) {
1539                 snd_iprintf(buffer, "  sample clock source: AutoSync\n");
1540         } else {
1541                 snd_iprintf(buffer, "  sample clock source: Internal\n");
1542         }
1543         if (rme32->wcreg & RME32_WCR_PRO) {
1544                 snd_iprintf(buffer, "  format: AES/EBU (professional)\n");
1545         } else {
1546                 snd_iprintf(buffer, "  format: IEC958 (consumer)\n");
1547         }
1548         if (rme32->wcreg & RME32_WCR_EMP) {
1549                 snd_iprintf(buffer, "  emphasis: on\n");
1550         } else {
1551                 snd_iprintf(buffer, "  emphasis: off\n");
1552         }
1553 }
1554
1555 static void snd_rme32_proc_init(struct rme32 *rme32)
1556 {
1557         snd_card_ro_proc_new(rme32->card, "rme32", rme32, snd_rme32_proc_read);
1558 }
1559
1560 /*
1561  * control interface
1562  */
1563
1564 #define snd_rme32_info_loopback_control         snd_ctl_boolean_mono_info
1565
1566 static int
1567 snd_rme32_get_loopback_control(struct snd_kcontrol *kcontrol,
1568                                struct snd_ctl_elem_value *ucontrol)
1569 {
1570         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1571
1572         spin_lock_irq(&rme32->lock);
1573         ucontrol->value.integer.value[0] =
1574             rme32->wcreg & RME32_WCR_SEL ? 0 : 1;
1575         spin_unlock_irq(&rme32->lock);
1576         return 0;
1577 }
1578 static int
1579 snd_rme32_put_loopback_control(struct snd_kcontrol *kcontrol,
1580                                struct snd_ctl_elem_value *ucontrol)
1581 {
1582         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1583         unsigned int val;
1584         int change;
1585
1586         val = ucontrol->value.integer.value[0] ? 0 : RME32_WCR_SEL;
1587         spin_lock_irq(&rme32->lock);
1588         val = (rme32->wcreg & ~RME32_WCR_SEL) | val;
1589         change = val != rme32->wcreg;
1590         if (ucontrol->value.integer.value[0])
1591                 val &= ~RME32_WCR_MUTE;
1592         else
1593                 val |= RME32_WCR_MUTE;
1594         rme32->wcreg = val;
1595         writel(val, rme32->iobase + RME32_IO_CONTROL_REGISTER);
1596         spin_unlock_irq(&rme32->lock);
1597         return change;
1598 }
1599
1600 static int
1601 snd_rme32_info_inputtype_control(struct snd_kcontrol *kcontrol,
1602                                  struct snd_ctl_elem_info *uinfo)
1603 {
1604         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1605         static const char * const texts[4] = {
1606                 "Optical", "Coaxial", "Internal", "XLR"
1607         };
1608         int num_items;
1609
1610         switch (rme32->pci->device) {
1611         case PCI_DEVICE_ID_RME_DIGI32:
1612         case PCI_DEVICE_ID_RME_DIGI32_8:
1613                 num_items = 3;
1614                 break;
1615         case PCI_DEVICE_ID_RME_DIGI32_PRO:
1616                 num_items = 4;
1617                 break;
1618         default:
1619                 snd_BUG();
1620                 return -EINVAL;
1621         }
1622         return snd_ctl_enum_info(uinfo, 1, num_items, texts);
1623 }
1624 static int
1625 snd_rme32_get_inputtype_control(struct snd_kcontrol *kcontrol,
1626                                 struct snd_ctl_elem_value *ucontrol)
1627 {
1628         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1629         unsigned int items = 3;
1630
1631         spin_lock_irq(&rme32->lock);
1632         ucontrol->value.enumerated.item[0] = snd_rme32_getinputtype(rme32);
1633
1634         switch (rme32->pci->device) {
1635         case PCI_DEVICE_ID_RME_DIGI32:
1636         case PCI_DEVICE_ID_RME_DIGI32_8:
1637                 items = 3;
1638                 break;
1639         case PCI_DEVICE_ID_RME_DIGI32_PRO:
1640                 items = 4;
1641                 break;
1642         default:
1643                 snd_BUG();
1644                 break;
1645         }
1646         if (ucontrol->value.enumerated.item[0] >= items) {
1647                 ucontrol->value.enumerated.item[0] = items - 1;
1648         }
1649
1650         spin_unlock_irq(&rme32->lock);
1651         return 0;
1652 }
1653 static int
1654 snd_rme32_put_inputtype_control(struct snd_kcontrol *kcontrol,
1655                                 struct snd_ctl_elem_value *ucontrol)
1656 {
1657         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1658         unsigned int val;
1659         int change, items = 3;
1660
1661         switch (rme32->pci->device) {
1662         case PCI_DEVICE_ID_RME_DIGI32:
1663         case PCI_DEVICE_ID_RME_DIGI32_8:
1664                 items = 3;
1665                 break;
1666         case PCI_DEVICE_ID_RME_DIGI32_PRO:
1667                 items = 4;
1668                 break;
1669         default:
1670                 snd_BUG();
1671                 break;
1672         }
1673         val = ucontrol->value.enumerated.item[0] % items;
1674
1675         spin_lock_irq(&rme32->lock);
1676         change = val != (unsigned int)snd_rme32_getinputtype(rme32);
1677         snd_rme32_setinputtype(rme32, val);
1678         spin_unlock_irq(&rme32->lock);
1679         return change;
1680 }
1681
1682 static int
1683 snd_rme32_info_clockmode_control(struct snd_kcontrol *kcontrol,
1684                                  struct snd_ctl_elem_info *uinfo)
1685 {
1686         static const char * const texts[4] = { "AutoSync",
1687                                   "Internal 32.0kHz", 
1688                                   "Internal 44.1kHz", 
1689                                   "Internal 48.0kHz" };
1690
1691         return snd_ctl_enum_info(uinfo, 1, 4, texts);
1692 }
1693 static int
1694 snd_rme32_get_clockmode_control(struct snd_kcontrol *kcontrol,
1695                                 struct snd_ctl_elem_value *ucontrol)
1696 {
1697         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1698
1699         spin_lock_irq(&rme32->lock);
1700         ucontrol->value.enumerated.item[0] = snd_rme32_getclockmode(rme32);
1701         spin_unlock_irq(&rme32->lock);
1702         return 0;
1703 }
1704 static int
1705 snd_rme32_put_clockmode_control(struct snd_kcontrol *kcontrol,
1706                                 struct snd_ctl_elem_value *ucontrol)
1707 {
1708         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1709         unsigned int val;
1710         int change;
1711
1712         val = ucontrol->value.enumerated.item[0] % 3;
1713         spin_lock_irq(&rme32->lock);
1714         change = val != (unsigned int)snd_rme32_getclockmode(rme32);
1715         snd_rme32_setclockmode(rme32, val);
1716         spin_unlock_irq(&rme32->lock);
1717         return change;
1718 }
1719
1720 static u32 snd_rme32_convert_from_aes(struct snd_aes_iec958 * aes)
1721 {
1722         u32 val = 0;
1723         val |= (aes->status[0] & IEC958_AES0_PROFESSIONAL) ? RME32_WCR_PRO : 0;
1724         if (val & RME32_WCR_PRO)
1725                 val |= (aes->status[0] & IEC958_AES0_PRO_EMPHASIS_5015) ? RME32_WCR_EMP : 0;
1726         else
1727                 val |= (aes->status[0] & IEC958_AES0_CON_EMPHASIS_5015) ? RME32_WCR_EMP : 0;
1728         return val;
1729 }
1730
1731 static void snd_rme32_convert_to_aes(struct snd_aes_iec958 * aes, u32 val)
1732 {
1733         aes->status[0] = ((val & RME32_WCR_PRO) ? IEC958_AES0_PROFESSIONAL : 0);
1734         if (val & RME32_WCR_PRO)
1735                 aes->status[0] |= (val & RME32_WCR_EMP) ? IEC958_AES0_PRO_EMPHASIS_5015 : 0;
1736         else
1737                 aes->status[0] |= (val & RME32_WCR_EMP) ? IEC958_AES0_CON_EMPHASIS_5015 : 0;
1738 }
1739
1740 static int snd_rme32_control_spdif_info(struct snd_kcontrol *kcontrol,
1741                                         struct snd_ctl_elem_info *uinfo)
1742 {
1743         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1744         uinfo->count = 1;
1745         return 0;
1746 }
1747
1748 static int snd_rme32_control_spdif_get(struct snd_kcontrol *kcontrol,
1749                                        struct snd_ctl_elem_value *ucontrol)
1750 {
1751         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1752
1753         snd_rme32_convert_to_aes(&ucontrol->value.iec958,
1754                                  rme32->wcreg_spdif);
1755         return 0;
1756 }
1757
1758 static int snd_rme32_control_spdif_put(struct snd_kcontrol *kcontrol,
1759                                        struct snd_ctl_elem_value *ucontrol)
1760 {
1761         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1762         int change;
1763         u32 val;
1764
1765         val = snd_rme32_convert_from_aes(&ucontrol->value.iec958);
1766         spin_lock_irq(&rme32->lock);
1767         change = val != rme32->wcreg_spdif;
1768         rme32->wcreg_spdif = val;
1769         spin_unlock_irq(&rme32->lock);
1770         return change;
1771 }
1772
1773 static int snd_rme32_control_spdif_stream_info(struct snd_kcontrol *kcontrol,
1774                                                struct snd_ctl_elem_info *uinfo)
1775 {
1776         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1777         uinfo->count = 1;
1778         return 0;
1779 }
1780
1781 static int snd_rme32_control_spdif_stream_get(struct snd_kcontrol *kcontrol,
1782                                               struct snd_ctl_elem_value *
1783                                               ucontrol)
1784 {
1785         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1786
1787         snd_rme32_convert_to_aes(&ucontrol->value.iec958,
1788                                  rme32->wcreg_spdif_stream);
1789         return 0;
1790 }
1791
1792 static int snd_rme32_control_spdif_stream_put(struct snd_kcontrol *kcontrol,
1793                                               struct snd_ctl_elem_value *
1794                                               ucontrol)
1795 {
1796         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1797         int change;
1798         u32 val;
1799
1800         val = snd_rme32_convert_from_aes(&ucontrol->value.iec958);
1801         spin_lock_irq(&rme32->lock);
1802         change = val != rme32->wcreg_spdif_stream;
1803         rme32->wcreg_spdif_stream = val;
1804         rme32->wcreg &= ~(RME32_WCR_PRO | RME32_WCR_EMP);
1805         rme32->wcreg |= val;
1806         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
1807         spin_unlock_irq(&rme32->lock);
1808         return change;
1809 }
1810
1811 static int snd_rme32_control_spdif_mask_info(struct snd_kcontrol *kcontrol,
1812                                              struct snd_ctl_elem_info *uinfo)
1813 {
1814         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1815         uinfo->count = 1;
1816         return 0;
1817 }
1818
1819 static int snd_rme32_control_spdif_mask_get(struct snd_kcontrol *kcontrol,
1820                                             struct snd_ctl_elem_value *
1821                                             ucontrol)
1822 {
1823         ucontrol->value.iec958.status[0] = kcontrol->private_value;
1824         return 0;
1825 }
1826
1827 static struct snd_kcontrol_new snd_rme32_controls[] = {
1828         {
1829                 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1830                 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
1831                 .info = snd_rme32_control_spdif_info,
1832                 .get =  snd_rme32_control_spdif_get,
1833                 .put =  snd_rme32_control_spdif_put
1834         },
1835         {
1836                 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
1837                 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1838                 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM),
1839                 .info = snd_rme32_control_spdif_stream_info,
1840                 .get =  snd_rme32_control_spdif_stream_get,
1841                 .put =  snd_rme32_control_spdif_stream_put
1842         },
1843         {
1844                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1845                 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1846                 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
1847                 .info = snd_rme32_control_spdif_mask_info,
1848                 .get =  snd_rme32_control_spdif_mask_get,
1849                 .private_value = IEC958_AES0_PROFESSIONAL | IEC958_AES0_CON_EMPHASIS
1850         },
1851         {
1852                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1853                 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1854                 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
1855                 .info = snd_rme32_control_spdif_mask_info,
1856                 .get =  snd_rme32_control_spdif_mask_get,
1857                 .private_value = IEC958_AES0_PROFESSIONAL | IEC958_AES0_PRO_EMPHASIS
1858         },
1859         {
1860                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1861                 .name = "Input Connector",
1862                 .info = snd_rme32_info_inputtype_control,
1863                 .get =  snd_rme32_get_inputtype_control,
1864                 .put =  snd_rme32_put_inputtype_control
1865         },
1866         {
1867                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1868                 .name = "Loopback Input",
1869                 .info = snd_rme32_info_loopback_control,
1870                 .get =  snd_rme32_get_loopback_control,
1871                 .put =  snd_rme32_put_loopback_control
1872         },
1873         {
1874                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1875                 .name = "Sample Clock Source",
1876                 .info = snd_rme32_info_clockmode_control,
1877                 .get =  snd_rme32_get_clockmode_control,
1878                 .put =  snd_rme32_put_clockmode_control
1879         }
1880 };
1881
1882 static int snd_rme32_create_switches(struct snd_card *card, struct rme32 * rme32)
1883 {
1884         int idx, err;
1885         struct snd_kcontrol *kctl;
1886
1887         for (idx = 0; idx < (int)ARRAY_SIZE(snd_rme32_controls); idx++) {
1888                 if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme32_controls[idx], rme32))) < 0)
1889                         return err;
1890                 if (idx == 1)   /* IEC958 (S/PDIF) Stream */
1891                         rme32->spdif_ctl = kctl;
1892         }
1893
1894         return 0;
1895 }
1896
1897 /*
1898  * Card initialisation
1899  */
1900
1901 static void snd_rme32_card_free(struct snd_card *card)
1902 {
1903         snd_rme32_free(card->private_data);
1904 }
1905
1906 static int
1907 snd_rme32_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
1908 {
1909         static int dev;
1910         struct rme32 *rme32;
1911         struct snd_card *card;
1912         int err;
1913
1914         if (dev >= SNDRV_CARDS) {
1915                 return -ENODEV;
1916         }
1917         if (!enable[dev]) {
1918                 dev++;
1919                 return -ENOENT;
1920         }
1921
1922         err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1923                            sizeof(struct rme32), &card);
1924         if (err < 0)
1925                 return err;
1926         card->private_free = snd_rme32_card_free;
1927         rme32 = (struct rme32 *) card->private_data;
1928         rme32->card = card;
1929         rme32->pci = pci;
1930         if (fullduplex[dev])
1931                 rme32->fullduplex_mode = 1;
1932         if ((err = snd_rme32_create(rme32)) < 0) {
1933                 snd_card_free(card);
1934                 return err;
1935         }
1936
1937         strcpy(card->driver, "Digi32");
1938         switch (rme32->pci->device) {
1939         case PCI_DEVICE_ID_RME_DIGI32:
1940                 strcpy(card->shortname, "RME Digi32");
1941                 break;
1942         case PCI_DEVICE_ID_RME_DIGI32_8:
1943                 strcpy(card->shortname, "RME Digi32/8");
1944                 break;
1945         case PCI_DEVICE_ID_RME_DIGI32_PRO:
1946                 strcpy(card->shortname, "RME Digi32 PRO");
1947                 break;
1948         }
1949         sprintf(card->longname, "%s (Rev. %d) at 0x%lx, irq %d",
1950                 card->shortname, rme32->rev, rme32->port, rme32->irq);
1951
1952         if ((err = snd_card_register(card)) < 0) {
1953                 snd_card_free(card);
1954                 return err;
1955         }
1956         pci_set_drvdata(pci, card);
1957         dev++;
1958         return 0;
1959 }
1960
1961 static void snd_rme32_remove(struct pci_dev *pci)
1962 {
1963         snd_card_free(pci_get_drvdata(pci));
1964 }
1965
1966 static struct pci_driver rme32_driver = {
1967         .name =         KBUILD_MODNAME,
1968         .id_table =     snd_rme32_ids,
1969         .probe =        snd_rme32_probe,
1970         .remove =       snd_rme32_remove,
1971 };
1972
1973 module_pci_driver(rme32_driver);