xref: /linux/sound/pci/rme32.c (revision 8fa5723aa7e053d498336b48448b292fc2e0458b)
1 /*
2  *   ALSA driver for RME Digi32, Digi32/8 and Digi32 PRO audio interfaces
3  *
4  *      Copyright (c) 2002-2004 Martin Langer <martin-langer@gmx.de>,
5  *                              Pilo Chambert <pilo.c@wanadoo.fr>
6  *
7  *      Thanks to :        Anders Torger <torger@ludd.luth.se>,
8  *                         Henk Hesselink <henk@anda.nl>
9  *                         for writing the digi96-driver
10  *                         and RME for all informations.
11  *
12  *   This program is free software; you can redistribute it and/or modify
13  *   it under the terms of the GNU General Public License as published by
14  *   the Free Software Foundation; either version 2 of the License, or
15  *   (at your option) any later version.
16  *
17  *   This program is distributed in the hope that it will be useful,
18  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
19  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20  *   GNU General Public License for more details.
21  *
22  *   You should have received a copy of the GNU General Public License
23  *   along with this program; if not, write to the Free Software
24  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25  *
26  *
27  * ****************************************************************************
28  *
29  * Note #1 "Sek'd models" ................................... martin 2002-12-07
30  *
31  * Identical soundcards by Sek'd were labeled:
32  * RME Digi 32     = Sek'd Prodif 32
33  * RME Digi 32 Pro = Sek'd Prodif 96
34  * RME Digi 32/8   = Sek'd Prodif Gold
35  *
36  * ****************************************************************************
37  *
38  * Note #2 "full duplex mode" ............................... martin 2002-12-07
39  *
40  * Full duplex doesn't work. All cards (32, 32/8, 32Pro) are working identical
41  * in this mode. Rec data and play data are using the same buffer therefore. At
42  * first you have got the playing bits in the buffer and then (after playing
43  * them) they were overwitten by the captured sound of the CS8412/14. Both
44  * modes (play/record) are running harmonically hand in hand in the same buffer
45  * and you have only one start bit plus one interrupt bit to control this
46  * paired action.
47  * This is opposite to the latter rme96 where playing and capturing is totally
48  * separated and so their full duplex mode is supported by alsa (using two
49  * start bits and two interrupts for two different buffers).
50  * But due to the wrong sequence of playing and capturing ALSA shows no solved
51  * full duplex support for the rme32 at the moment. That's bad, but I'm not
52  * able to solve it. Are you motivated enough to solve this problem now? Your
53  * patch would be welcome!
54  *
55  * ****************************************************************************
56  *
57  * "The story after the long seeking" -- tiwai
58  *
59  * Ok, the situation regarding the full duplex is now improved a bit.
60  * In the fullduplex mode (given by the module parameter), the hardware buffer
61  * is split to halves for read and write directions at the DMA pointer.
62  * That is, the half above the current DMA pointer is used for write, and
63  * the half below is used for read.  To mangle this strange behavior, an
64  * software intermediate buffer is introduced.  This is, of course, not good
65  * from the viewpoint of the data transfer efficiency.  However, this allows
66  * you to use arbitrary buffer sizes, instead of the fixed I/O buffer size.
67  *
68  * ****************************************************************************
69  */
70 
71 
72 #include <linux/delay.h>
73 #include <linux/init.h>
74 #include <linux/interrupt.h>
75 #include <linux/pci.h>
76 #include <linux/slab.h>
77 #include <linux/moduleparam.h>
78 
79 #include <sound/core.h>
80 #include <sound/info.h>
81 #include <sound/control.h>
82 #include <sound/pcm.h>
83 #include <sound/pcm_params.h>
84 #include <sound/pcm-indirect.h>
85 #include <sound/asoundef.h>
86 #include <sound/initval.h>
87 
88 #include <asm/io.h>
89 
90 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
91 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
92 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable this card */
93 static int fullduplex[SNDRV_CARDS]; // = {[0 ... (SNDRV_CARDS - 1)] = 1};
94 
95 module_param_array(index, int, NULL, 0444);
96 MODULE_PARM_DESC(index, "Index value for RME Digi32 soundcard.");
97 module_param_array(id, charp, NULL, 0444);
98 MODULE_PARM_DESC(id, "ID string for RME Digi32 soundcard.");
99 module_param_array(enable, bool, NULL, 0444);
100 MODULE_PARM_DESC(enable, "Enable RME Digi32 soundcard.");
101 module_param_array(fullduplex, bool, NULL, 0444);
102 MODULE_PARM_DESC(fullduplex, "Support full-duplex mode.");
103 MODULE_AUTHOR("Martin Langer <martin-langer@gmx.de>, Pilo Chambert <pilo.c@wanadoo.fr>");
104 MODULE_DESCRIPTION("RME Digi32, Digi32/8, Digi32 PRO");
105 MODULE_LICENSE("GPL");
106 MODULE_SUPPORTED_DEVICE("{{RME,Digi32}," "{RME,Digi32/8}," "{RME,Digi32 PRO}}");
107 
108 /* Defines for RME Digi32 series */
109 #define RME32_SPDIF_NCHANNELS 2
110 
111 /* Playback and capture buffer size */
112 #define RME32_BUFFER_SIZE 0x20000
113 
114 /* IO area size */
115 #define RME32_IO_SIZE 0x30000
116 
117 /* IO area offsets */
118 #define RME32_IO_DATA_BUFFER        0x0
119 #define RME32_IO_CONTROL_REGISTER   0x20000
120 #define RME32_IO_GET_POS            0x20000
121 #define RME32_IO_CONFIRM_ACTION_IRQ 0x20004
122 #define RME32_IO_RESET_POS          0x20100
123 
124 /* Write control register bits */
125 #define RME32_WCR_START     (1 << 0)    /* startbit */
126 #define RME32_WCR_MONO      (1 << 1)    /* 0=stereo, 1=mono
127                                            Setting the whole card to mono
128                                            doesn't seem to be very useful.
129                                            A software-solution can handle
130                                            full-duplex with one direction in
131                                            stereo and the other way in mono.
132                                            So, the hardware should work all
133                                            the time in stereo! */
134 #define RME32_WCR_MODE24    (1 << 2)    /* 0=16bit, 1=32bit */
135 #define RME32_WCR_SEL       (1 << 3)    /* 0=input on output, 1=normal playback/capture */
136 #define RME32_WCR_FREQ_0    (1 << 4)    /* frequency (play) */
137 #define RME32_WCR_FREQ_1    (1 << 5)
138 #define RME32_WCR_INP_0     (1 << 6)    /* input switch */
139 #define RME32_WCR_INP_1     (1 << 7)
140 #define RME32_WCR_RESET     (1 << 8)    /* Reset address */
141 #define RME32_WCR_MUTE      (1 << 9)    /* digital mute for output */
142 #define RME32_WCR_PRO       (1 << 10)   /* 1=professional, 0=consumer */
143 #define RME32_WCR_DS_BM     (1 << 11)	/* 1=DoubleSpeed (only PRO-Version); 1=BlockMode (only Adat-Version) */
144 #define RME32_WCR_ADAT      (1 << 12)	/* Adat Mode (only Adat-Version) */
145 #define RME32_WCR_AUTOSYNC  (1 << 13)   /* AutoSync */
146 #define RME32_WCR_PD        (1 << 14)	/* DAC Reset (only PRO-Version) */
147 #define RME32_WCR_EMP       (1 << 15)	/* 1=Emphasis on (only PRO-Version) */
148 
149 #define RME32_WCR_BITPOS_FREQ_0 4
150 #define RME32_WCR_BITPOS_FREQ_1 5
151 #define RME32_WCR_BITPOS_INP_0 6
152 #define RME32_WCR_BITPOS_INP_1 7
153 
154 /* Read control register bits */
155 #define RME32_RCR_AUDIO_ADDR_MASK 0x1ffff
156 #define RME32_RCR_LOCK      (1 << 23)   /* 1=locked, 0=not locked */
157 #define RME32_RCR_ERF       (1 << 26)   /* 1=Error, 0=no Error */
158 #define RME32_RCR_FREQ_0    (1 << 27)   /* CS841x frequency (record) */
159 #define RME32_RCR_FREQ_1    (1 << 28)
160 #define RME32_RCR_FREQ_2    (1 << 29)
161 #define RME32_RCR_KMODE     (1 << 30)   /* card mode: 1=PLL, 0=quartz */
162 #define RME32_RCR_IRQ       (1 << 31)   /* interrupt */
163 
164 #define RME32_RCR_BITPOS_F0 27
165 #define RME32_RCR_BITPOS_F1 28
166 #define RME32_RCR_BITPOS_F2 29
167 
168 /* Input types */
169 #define RME32_INPUT_OPTICAL 0
170 #define RME32_INPUT_COAXIAL 1
171 #define RME32_INPUT_INTERNAL 2
172 #define RME32_INPUT_XLR 3
173 
174 /* Clock modes */
175 #define RME32_CLOCKMODE_SLAVE 0
176 #define RME32_CLOCKMODE_MASTER_32 1
177 #define RME32_CLOCKMODE_MASTER_44 2
178 #define RME32_CLOCKMODE_MASTER_48 3
179 
180 /* Block sizes in bytes */
181 #define RME32_BLOCK_SIZE 8192
182 
183 /* Software intermediate buffer (max) size */
184 #define RME32_MID_BUFFER_SIZE (1024*1024)
185 
186 /* Hardware revisions */
187 #define RME32_32_REVISION 192
188 #define RME32_328_REVISION_OLD 100
189 #define RME32_328_REVISION_NEW 101
190 #define RME32_PRO_REVISION_WITH_8412 192
191 #define RME32_PRO_REVISION_WITH_8414 150
192 
193 
194 struct rme32 {
195 	spinlock_t lock;
196 	int irq;
197 	unsigned long port;
198 	void __iomem *iobase;
199 
200 	u32 wcreg;		/* cached write control register value */
201 	u32 wcreg_spdif;	/* S/PDIF setup */
202 	u32 wcreg_spdif_stream;	/* S/PDIF setup (temporary) */
203 	u32 rcreg;		/* cached read control register value */
204 
205 	u8 rev;			/* card revision number */
206 
207 	struct snd_pcm_substream *playback_substream;
208 	struct snd_pcm_substream *capture_substream;
209 
210 	int playback_frlog;	/* log2 of framesize */
211 	int capture_frlog;
212 
213 	size_t playback_periodsize;	/* in bytes, zero if not used */
214 	size_t capture_periodsize;	/* in bytes, zero if not used */
215 
216 	unsigned int fullduplex_mode;
217 	int running;
218 
219 	struct snd_pcm_indirect playback_pcm;
220 	struct snd_pcm_indirect capture_pcm;
221 
222 	struct snd_card *card;
223 	struct snd_pcm *spdif_pcm;
224 	struct snd_pcm *adat_pcm;
225 	struct pci_dev *pci;
226 	struct snd_kcontrol *spdif_ctl;
227 };
228 
229 static struct pci_device_id snd_rme32_ids[] = {
230 	{PCI_VENDOR_ID_XILINX_RME, PCI_DEVICE_ID_RME_DIGI32,
231 	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0,},
232 	{PCI_VENDOR_ID_XILINX_RME, PCI_DEVICE_ID_RME_DIGI32_8,
233 	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0,},
234 	{PCI_VENDOR_ID_XILINX_RME, PCI_DEVICE_ID_RME_DIGI32_PRO,
235 	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0,},
236 	{0,}
237 };
238 
239 MODULE_DEVICE_TABLE(pci, snd_rme32_ids);
240 
241 #define RME32_ISWORKING(rme32) ((rme32)->wcreg & RME32_WCR_START)
242 #define RME32_PRO_WITH_8414(rme32) ((rme32)->pci->device == PCI_DEVICE_ID_RME_DIGI32_PRO && (rme32)->rev == RME32_PRO_REVISION_WITH_8414)
243 
244 static int snd_rme32_playback_prepare(struct snd_pcm_substream *substream);
245 
246 static int snd_rme32_capture_prepare(struct snd_pcm_substream *substream);
247 
248 static int snd_rme32_pcm_trigger(struct snd_pcm_substream *substream, int cmd);
249 
250 static void snd_rme32_proc_init(struct rme32 * rme32);
251 
252 static int snd_rme32_create_switches(struct snd_card *card, struct rme32 * rme32);
253 
254 static inline unsigned int snd_rme32_pcm_byteptr(struct rme32 * rme32)
255 {
256 	return (readl(rme32->iobase + RME32_IO_GET_POS)
257 		& RME32_RCR_AUDIO_ADDR_MASK);
258 }
259 
260 /* silence callback for halfduplex mode */
261 static int snd_rme32_playback_silence(struct snd_pcm_substream *substream, int channel,	/* not used (interleaved data) */
262 				      snd_pcm_uframes_t pos,
263 				      snd_pcm_uframes_t count)
264 {
265 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
266 	count <<= rme32->playback_frlog;
267 	pos <<= rme32->playback_frlog;
268 	memset_io(rme32->iobase + RME32_IO_DATA_BUFFER + pos, 0, count);
269 	return 0;
270 }
271 
272 /* copy callback for halfduplex mode */
273 static int snd_rme32_playback_copy(struct snd_pcm_substream *substream, int channel,	/* not used (interleaved data) */
274 				   snd_pcm_uframes_t pos,
275 				   void __user *src, snd_pcm_uframes_t count)
276 {
277 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
278 	count <<= rme32->playback_frlog;
279 	pos <<= rme32->playback_frlog;
280 	if (copy_from_user_toio(rme32->iobase + RME32_IO_DATA_BUFFER + pos,
281 			    src, count))
282 		return -EFAULT;
283 	return 0;
284 }
285 
286 /* copy callback for halfduplex mode */
287 static int snd_rme32_capture_copy(struct snd_pcm_substream *substream, int channel,	/* not used (interleaved data) */
288 				  snd_pcm_uframes_t pos,
289 				  void __user *dst, snd_pcm_uframes_t count)
290 {
291 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
292 	count <<= rme32->capture_frlog;
293 	pos <<= rme32->capture_frlog;
294 	if (copy_to_user_fromio(dst,
295 			    rme32->iobase + RME32_IO_DATA_BUFFER + pos,
296 			    count))
297 		return -EFAULT;
298 	return 0;
299 }
300 
301 /*
302  * SPDIF I/O capabilities (half-duplex mode)
303  */
304 static struct snd_pcm_hardware snd_rme32_spdif_info = {
305 	.info =		(SNDRV_PCM_INFO_MMAP_IOMEM |
306 			 SNDRV_PCM_INFO_MMAP_VALID |
307 			 SNDRV_PCM_INFO_INTERLEAVED |
308 			 SNDRV_PCM_INFO_PAUSE |
309 			 SNDRV_PCM_INFO_SYNC_START),
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 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 	.formats=            SNDRV_PCM_FMTBIT_S16_LE,
338 	.rates =             (SNDRV_PCM_RATE_44100 |
339 			      SNDRV_PCM_RATE_48000),
340 	.rate_min =          44100,
341 	.rate_max =          48000,
342 	.channels_min =      8,
343 	.channels_max =	     8,
344 	.buffer_bytes_max =  RME32_BUFFER_SIZE,
345 	.period_bytes_min =  RME32_BLOCK_SIZE,
346 	.period_bytes_max =  RME32_BLOCK_SIZE,
347 	.periods_min =	    RME32_BUFFER_SIZE / RME32_BLOCK_SIZE,
348 	.periods_max =	    RME32_BUFFER_SIZE / RME32_BLOCK_SIZE,
349 	.fifo_size =	    0,
350 };
351 
352 /*
353  * SPDIF I/O capabilities (full-duplex mode)
354  */
355 static struct snd_pcm_hardware snd_rme32_spdif_fd_info = {
356 	.info =		(SNDRV_PCM_INFO_MMAP |
357 			 SNDRV_PCM_INFO_MMAP_VALID |
358 			 SNDRV_PCM_INFO_INTERLEAVED |
359 			 SNDRV_PCM_INFO_PAUSE |
360 			 SNDRV_PCM_INFO_SYNC_START),
361 	.formats =	(SNDRV_PCM_FMTBIT_S16_LE |
362 			 SNDRV_PCM_FMTBIT_S32_LE),
363 	.rates =	(SNDRV_PCM_RATE_32000 |
364 			 SNDRV_PCM_RATE_44100 |
365 			 SNDRV_PCM_RATE_48000),
366 	.rate_min =	32000,
367 	.rate_max =	48000,
368 	.channels_min =	2,
369 	.channels_max =	2,
370 	.buffer_bytes_max = RME32_MID_BUFFER_SIZE,
371 	.period_bytes_min = RME32_BLOCK_SIZE,
372 	.period_bytes_max = RME32_BLOCK_SIZE,
373 	.periods_min =	2,
374 	.periods_max =	RME32_MID_BUFFER_SIZE / RME32_BLOCK_SIZE,
375 	.fifo_size =	0,
376 };
377 
378 /*
379  * ADAT I/O capabilities (full-duplex mode)
380  */
381 static struct snd_pcm_hardware snd_rme32_adat_fd_info =
382 {
383 	.info =		     (SNDRV_PCM_INFO_MMAP |
384 			      SNDRV_PCM_INFO_MMAP_VALID |
385 			      SNDRV_PCM_INFO_INTERLEAVED |
386 			      SNDRV_PCM_INFO_PAUSE |
387 			      SNDRV_PCM_INFO_SYNC_START),
388 	.formats=            SNDRV_PCM_FMTBIT_S16_LE,
389 	.rates =             (SNDRV_PCM_RATE_44100 |
390 			      SNDRV_PCM_RATE_48000),
391 	.rate_min =          44100,
392 	.rate_max =          48000,
393 	.channels_min =      8,
394 	.channels_max =	     8,
395 	.buffer_bytes_max =  RME32_MID_BUFFER_SIZE,
396 	.period_bytes_min =  RME32_BLOCK_SIZE,
397 	.period_bytes_max =  RME32_BLOCK_SIZE,
398 	.periods_min =	    2,
399 	.periods_max =	    RME32_MID_BUFFER_SIZE / RME32_BLOCK_SIZE,
400 	.fifo_size =	    0,
401 };
402 
403 static void snd_rme32_reset_dac(struct rme32 *rme32)
404 {
405         writel(rme32->wcreg | RME32_WCR_PD,
406                rme32->iobase + RME32_IO_CONTROL_REGISTER);
407         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
408 }
409 
410 static int snd_rme32_playback_getrate(struct rme32 * rme32)
411 {
412 	int rate;
413 
414 	rate = ((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_0) & 1) +
415 	       (((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_1) & 1) << 1);
416 	switch (rate) {
417 	case 1:
418 		rate = 32000;
419 		break;
420 	case 2:
421 		rate = 44100;
422 		break;
423 	case 3:
424 		rate = 48000;
425 		break;
426 	default:
427 		return -1;
428 	}
429 	return (rme32->wcreg & RME32_WCR_DS_BM) ? rate << 1 : rate;
430 }
431 
432 static int snd_rme32_capture_getrate(struct rme32 * rme32, int *is_adat)
433 {
434 	int n;
435 
436 	*is_adat = 0;
437 	if (rme32->rcreg & RME32_RCR_LOCK) {
438                 /* ADAT rate */
439                 *is_adat = 1;
440 	}
441 	if (rme32->rcreg & RME32_RCR_ERF) {
442 		return -1;
443 	}
444 
445         /* S/PDIF rate */
446 	n = ((rme32->rcreg >> RME32_RCR_BITPOS_F0) & 1) +
447 		(((rme32->rcreg >> RME32_RCR_BITPOS_F1) & 1) << 1) +
448 		(((rme32->rcreg >> RME32_RCR_BITPOS_F2) & 1) << 2);
449 
450 	if (RME32_PRO_WITH_8414(rme32))
451 		switch (n) {	/* supporting the CS8414 */
452 		case 0:
453 		case 1:
454 		case 2:
455 			return -1;
456 		case 3:
457 			return 96000;
458 		case 4:
459 			return 88200;
460 		case 5:
461 			return 48000;
462 		case 6:
463 			return 44100;
464 		case 7:
465 			return 32000;
466 		default:
467 			return -1;
468 			break;
469 		}
470 	else
471 		switch (n) {	/* supporting the CS8412 */
472 		case 0:
473 			return -1;
474 		case 1:
475 			return 48000;
476 		case 2:
477 			return 44100;
478 		case 3:
479 			return 32000;
480 		case 4:
481 			return 48000;
482 		case 5:
483 			return 44100;
484 		case 6:
485 			return 44056;
486 		case 7:
487 			return 32000;
488 		default:
489 			break;
490 		}
491 	return -1;
492 }
493 
494 static int snd_rme32_playback_setrate(struct rme32 * rme32, int rate)
495 {
496         int ds;
497 
498         ds = rme32->wcreg & RME32_WCR_DS_BM;
499 	switch (rate) {
500 	case 32000:
501 		rme32->wcreg &= ~RME32_WCR_DS_BM;
502 		rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) &
503 			~RME32_WCR_FREQ_1;
504 		break;
505 	case 44100:
506 		rme32->wcreg &= ~RME32_WCR_DS_BM;
507 		rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_1) &
508 			~RME32_WCR_FREQ_0;
509 		break;
510 	case 48000:
511 		rme32->wcreg &= ~RME32_WCR_DS_BM;
512 		rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) |
513 			RME32_WCR_FREQ_1;
514 		break;
515 	case 64000:
516 		if (rme32->pci->device != PCI_DEVICE_ID_RME_DIGI32_PRO)
517 			return -EINVAL;
518 		rme32->wcreg |= RME32_WCR_DS_BM;
519 		rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) &
520 			~RME32_WCR_FREQ_1;
521 		break;
522 	case 88200:
523 		if (rme32->pci->device != PCI_DEVICE_ID_RME_DIGI32_PRO)
524 			return -EINVAL;
525 		rme32->wcreg |= RME32_WCR_DS_BM;
526 		rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_1) &
527 			~RME32_WCR_FREQ_0;
528 		break;
529 	case 96000:
530 		if (rme32->pci->device != PCI_DEVICE_ID_RME_DIGI32_PRO)
531 			return -EINVAL;
532 		rme32->wcreg |= RME32_WCR_DS_BM;
533 		rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) |
534 			RME32_WCR_FREQ_1;
535 		break;
536 	default:
537 		return -EINVAL;
538 	}
539         if ((!ds && rme32->wcreg & RME32_WCR_DS_BM) ||
540             (ds && !(rme32->wcreg & RME32_WCR_DS_BM)))
541         {
542                 /* change to/from double-speed: reset the DAC (if available) */
543                 snd_rme32_reset_dac(rme32);
544         } else {
545                 writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
546 	}
547 	return 0;
548 }
549 
550 static int snd_rme32_setclockmode(struct rme32 * rme32, int mode)
551 {
552 	switch (mode) {
553 	case RME32_CLOCKMODE_SLAVE:
554 		/* AutoSync */
555 		rme32->wcreg = (rme32->wcreg & ~RME32_WCR_FREQ_0) &
556 			~RME32_WCR_FREQ_1;
557 		break;
558 	case RME32_CLOCKMODE_MASTER_32:
559 		/* Internal 32.0kHz */
560 		rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) &
561 			~RME32_WCR_FREQ_1;
562 		break;
563 	case RME32_CLOCKMODE_MASTER_44:
564 		/* Internal 44.1kHz */
565 		rme32->wcreg = (rme32->wcreg & ~RME32_WCR_FREQ_0) |
566 			RME32_WCR_FREQ_1;
567 		break;
568 	case RME32_CLOCKMODE_MASTER_48:
569 		/* Internal 48.0kHz */
570 		rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) |
571 			RME32_WCR_FREQ_1;
572 		break;
573 	default:
574 		return -EINVAL;
575 	}
576 	writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
577 	return 0;
578 }
579 
580 static int snd_rme32_getclockmode(struct rme32 * rme32)
581 {
582 	return ((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_0) & 1) +
583 	    (((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_1) & 1) << 1);
584 }
585 
586 static int snd_rme32_setinputtype(struct rme32 * rme32, int type)
587 {
588 	switch (type) {
589 	case RME32_INPUT_OPTICAL:
590 		rme32->wcreg = (rme32->wcreg & ~RME32_WCR_INP_0) &
591 			~RME32_WCR_INP_1;
592 		break;
593 	case RME32_INPUT_COAXIAL:
594 		rme32->wcreg = (rme32->wcreg | RME32_WCR_INP_0) &
595 			~RME32_WCR_INP_1;
596 		break;
597 	case RME32_INPUT_INTERNAL:
598 		rme32->wcreg = (rme32->wcreg & ~RME32_WCR_INP_0) |
599 			RME32_WCR_INP_1;
600 		break;
601 	case RME32_INPUT_XLR:
602 		rme32->wcreg = (rme32->wcreg | RME32_WCR_INP_0) |
603 			RME32_WCR_INP_1;
604 		break;
605 	default:
606 		return -EINVAL;
607 	}
608 	writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
609 	return 0;
610 }
611 
612 static int snd_rme32_getinputtype(struct rme32 * rme32)
613 {
614 	return ((rme32->wcreg >> RME32_WCR_BITPOS_INP_0) & 1) +
615 	    (((rme32->wcreg >> RME32_WCR_BITPOS_INP_1) & 1) << 1);
616 }
617 
618 static void
619 snd_rme32_setframelog(struct rme32 * rme32, int n_channels, int is_playback)
620 {
621 	int frlog;
622 
623 	if (n_channels == 2) {
624 		frlog = 1;
625 	} else {
626 		/* assume 8 channels */
627 		frlog = 3;
628 	}
629 	if (is_playback) {
630 		frlog += (rme32->wcreg & RME32_WCR_MODE24) ? 2 : 1;
631 		rme32->playback_frlog = frlog;
632 	} else {
633 		frlog += (rme32->wcreg & RME32_WCR_MODE24) ? 2 : 1;
634 		rme32->capture_frlog = frlog;
635 	}
636 }
637 
638 static int snd_rme32_setformat(struct rme32 * rme32, int format)
639 {
640 	switch (format) {
641 	case SNDRV_PCM_FORMAT_S16_LE:
642 		rme32->wcreg &= ~RME32_WCR_MODE24;
643 		break;
644 	case SNDRV_PCM_FORMAT_S32_LE:
645 		rme32->wcreg |= RME32_WCR_MODE24;
646 		break;
647 	default:
648 		return -EINVAL;
649 	}
650 	writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
651 	return 0;
652 }
653 
654 static int
655 snd_rme32_playback_hw_params(struct snd_pcm_substream *substream,
656 			     struct snd_pcm_hw_params *params)
657 {
658 	int err, rate, dummy;
659 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
660 	struct snd_pcm_runtime *runtime = substream->runtime;
661 
662 	if (rme32->fullduplex_mode) {
663 		err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
664 		if (err < 0)
665 			return err;
666 	} else {
667 		runtime->dma_area = (void __force *)(rme32->iobase +
668 						     RME32_IO_DATA_BUFFER);
669 		runtime->dma_addr = rme32->port + RME32_IO_DATA_BUFFER;
670 		runtime->dma_bytes = RME32_BUFFER_SIZE;
671 	}
672 
673 	spin_lock_irq(&rme32->lock);
674 	if ((rme32->rcreg & RME32_RCR_KMODE) &&
675 	    (rate = snd_rme32_capture_getrate(rme32, &dummy)) > 0) {
676 		/* AutoSync */
677 		if ((int)params_rate(params) != rate) {
678 			spin_unlock_irq(&rme32->lock);
679 			return -EIO;
680 		}
681 	} else if ((err = snd_rme32_playback_setrate(rme32, params_rate(params))) < 0) {
682 		spin_unlock_irq(&rme32->lock);
683 		return err;
684 	}
685 	if ((err = snd_rme32_setformat(rme32, params_format(params))) < 0) {
686 		spin_unlock_irq(&rme32->lock);
687 		return err;
688 	}
689 
690 	snd_rme32_setframelog(rme32, params_channels(params), 1);
691 	if (rme32->capture_periodsize != 0) {
692 		if (params_period_size(params) << rme32->playback_frlog != rme32->capture_periodsize) {
693 			spin_unlock_irq(&rme32->lock);
694 			return -EBUSY;
695 		}
696 	}
697 	rme32->playback_periodsize = params_period_size(params) << rme32->playback_frlog;
698 	/* S/PDIF setup */
699 	if ((rme32->wcreg & RME32_WCR_ADAT) == 0) {
700 		rme32->wcreg &= ~(RME32_WCR_PRO | RME32_WCR_EMP);
701 		rme32->wcreg |= rme32->wcreg_spdif_stream;
702 		writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
703 	}
704 	spin_unlock_irq(&rme32->lock);
705 
706 	return 0;
707 }
708 
709 static int
710 snd_rme32_capture_hw_params(struct snd_pcm_substream *substream,
711 			    struct snd_pcm_hw_params *params)
712 {
713 	int err, isadat, rate;
714 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
715 	struct snd_pcm_runtime *runtime = substream->runtime;
716 
717 	if (rme32->fullduplex_mode) {
718 		err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
719 		if (err < 0)
720 			return err;
721 	} else {
722 		runtime->dma_area = (void __force *)rme32->iobase +
723 					RME32_IO_DATA_BUFFER;
724 		runtime->dma_addr = rme32->port + RME32_IO_DATA_BUFFER;
725 		runtime->dma_bytes = RME32_BUFFER_SIZE;
726 	}
727 
728 	spin_lock_irq(&rme32->lock);
729 	/* enable AutoSync for record-preparing */
730 	rme32->wcreg |= RME32_WCR_AUTOSYNC;
731 	writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
732 
733 	if ((err = snd_rme32_setformat(rme32, params_format(params))) < 0) {
734 		spin_unlock_irq(&rme32->lock);
735 		return err;
736 	}
737 	if ((err = snd_rme32_playback_setrate(rme32, params_rate(params))) < 0) {
738 		spin_unlock_irq(&rme32->lock);
739 		return err;
740 	}
741 	if ((rate = snd_rme32_capture_getrate(rme32, &isadat)) > 0) {
742                 if ((int)params_rate(params) != rate) {
743 			spin_unlock_irq(&rme32->lock);
744                         return -EIO;
745                 }
746                 if ((isadat && runtime->hw.channels_min == 2) ||
747                     (!isadat && runtime->hw.channels_min == 8)) {
748 			spin_unlock_irq(&rme32->lock);
749                         return -EIO;
750                 }
751 	}
752 	/* AutoSync off for recording */
753 	rme32->wcreg &= ~RME32_WCR_AUTOSYNC;
754 	writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
755 
756 	snd_rme32_setframelog(rme32, params_channels(params), 0);
757 	if (rme32->playback_periodsize != 0) {
758 		if (params_period_size(params) << rme32->capture_frlog !=
759 		    rme32->playback_periodsize) {
760 			spin_unlock_irq(&rme32->lock);
761 			return -EBUSY;
762 		}
763 	}
764 	rme32->capture_periodsize =
765 	    params_period_size(params) << rme32->capture_frlog;
766 	spin_unlock_irq(&rme32->lock);
767 
768 	return 0;
769 }
770 
771 static int snd_rme32_pcm_hw_free(struct snd_pcm_substream *substream)
772 {
773 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
774 	if (! rme32->fullduplex_mode)
775 		return 0;
776 	return snd_pcm_lib_free_pages(substream);
777 }
778 
779 static void snd_rme32_pcm_start(struct rme32 * rme32, int from_pause)
780 {
781 	if (!from_pause) {
782 		writel(0, rme32->iobase + RME32_IO_RESET_POS);
783 	}
784 
785 	rme32->wcreg |= RME32_WCR_START;
786 	writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
787 }
788 
789 static void snd_rme32_pcm_stop(struct rme32 * rme32, int to_pause)
790 {
791 	/*
792 	 * Check if there is an unconfirmed IRQ, if so confirm it, or else
793 	 * the hardware will not stop generating interrupts
794 	 */
795 	rme32->rcreg = readl(rme32->iobase + RME32_IO_CONTROL_REGISTER);
796 	if (rme32->rcreg & RME32_RCR_IRQ) {
797 		writel(0, rme32->iobase + RME32_IO_CONFIRM_ACTION_IRQ);
798 	}
799 	rme32->wcreg &= ~RME32_WCR_START;
800 	if (rme32->wcreg & RME32_WCR_SEL)
801 		rme32->wcreg |= RME32_WCR_MUTE;
802 	writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
803 	if (! to_pause)
804 		writel(0, rme32->iobase + RME32_IO_RESET_POS);
805 }
806 
807 static irqreturn_t snd_rme32_interrupt(int irq, void *dev_id)
808 {
809 	struct rme32 *rme32 = (struct rme32 *) dev_id;
810 
811 	rme32->rcreg = readl(rme32->iobase + RME32_IO_CONTROL_REGISTER);
812 	if (!(rme32->rcreg & RME32_RCR_IRQ)) {
813 		return IRQ_NONE;
814 	} else {
815 		if (rme32->capture_substream) {
816 			snd_pcm_period_elapsed(rme32->capture_substream);
817 		}
818 		if (rme32->playback_substream) {
819 			snd_pcm_period_elapsed(rme32->playback_substream);
820 		}
821 		writel(0, rme32->iobase + RME32_IO_CONFIRM_ACTION_IRQ);
822 	}
823 	return IRQ_HANDLED;
824 }
825 
826 static unsigned int period_bytes[] = { RME32_BLOCK_SIZE };
827 
828 
829 static struct snd_pcm_hw_constraint_list hw_constraints_period_bytes = {
830 	.count = ARRAY_SIZE(period_bytes),
831 	.list = period_bytes,
832 	.mask = 0
833 };
834 
835 static void snd_rme32_set_buffer_constraint(struct rme32 *rme32, struct snd_pcm_runtime *runtime)
836 {
837 	if (! rme32->fullduplex_mode) {
838 		snd_pcm_hw_constraint_minmax(runtime,
839 					     SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
840 					     RME32_BUFFER_SIZE, RME32_BUFFER_SIZE);
841 		snd_pcm_hw_constraint_list(runtime, 0,
842 					   SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
843 					   &hw_constraints_period_bytes);
844 	}
845 }
846 
847 static int snd_rme32_playback_spdif_open(struct snd_pcm_substream *substream)
848 {
849 	int rate, dummy;
850 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
851 	struct snd_pcm_runtime *runtime = substream->runtime;
852 
853 	snd_pcm_set_sync(substream);
854 
855 	spin_lock_irq(&rme32->lock);
856 	if (rme32->playback_substream != NULL) {
857 		spin_unlock_irq(&rme32->lock);
858 		return -EBUSY;
859 	}
860 	rme32->wcreg &= ~RME32_WCR_ADAT;
861 	writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
862 	rme32->playback_substream = substream;
863 	spin_unlock_irq(&rme32->lock);
864 
865 	if (rme32->fullduplex_mode)
866 		runtime->hw = snd_rme32_spdif_fd_info;
867 	else
868 		runtime->hw = snd_rme32_spdif_info;
869 	if (rme32->pci->device == PCI_DEVICE_ID_RME_DIGI32_PRO) {
870 		runtime->hw.rates |= SNDRV_PCM_RATE_64000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000;
871 		runtime->hw.rate_max = 96000;
872 	}
873 	if ((rme32->rcreg & RME32_RCR_KMODE) &&
874 	    (rate = snd_rme32_capture_getrate(rme32, &dummy)) > 0) {
875 		/* AutoSync */
876 		runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
877 		runtime->hw.rate_min = rate;
878 		runtime->hw.rate_max = rate;
879 	}
880 
881 	snd_rme32_set_buffer_constraint(rme32, runtime);
882 
883 	rme32->wcreg_spdif_stream = rme32->wcreg_spdif;
884 	rme32->spdif_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
885 	snd_ctl_notify(rme32->card, SNDRV_CTL_EVENT_MASK_VALUE |
886 		       SNDRV_CTL_EVENT_MASK_INFO, &rme32->spdif_ctl->id);
887 	return 0;
888 }
889 
890 static int snd_rme32_capture_spdif_open(struct snd_pcm_substream *substream)
891 {
892 	int isadat, rate;
893 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
894 	struct snd_pcm_runtime *runtime = substream->runtime;
895 
896 	snd_pcm_set_sync(substream);
897 
898 	spin_lock_irq(&rme32->lock);
899         if (rme32->capture_substream != NULL) {
900 		spin_unlock_irq(&rme32->lock);
901                 return -EBUSY;
902         }
903 	rme32->capture_substream = substream;
904 	spin_unlock_irq(&rme32->lock);
905 
906 	if (rme32->fullduplex_mode)
907 		runtime->hw = snd_rme32_spdif_fd_info;
908 	else
909 		runtime->hw = snd_rme32_spdif_info;
910 	if (RME32_PRO_WITH_8414(rme32)) {
911 		runtime->hw.rates |= SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000;
912 		runtime->hw.rate_max = 96000;
913 	}
914 	if ((rate = snd_rme32_capture_getrate(rme32, &isadat)) > 0) {
915 		if (isadat) {
916 			return -EIO;
917 		}
918 		runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
919 		runtime->hw.rate_min = rate;
920 		runtime->hw.rate_max = rate;
921 	}
922 
923 	snd_rme32_set_buffer_constraint(rme32, runtime);
924 
925 	return 0;
926 }
927 
928 static int
929 snd_rme32_playback_adat_open(struct snd_pcm_substream *substream)
930 {
931 	int rate, dummy;
932 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
933 	struct snd_pcm_runtime *runtime = substream->runtime;
934 
935 	snd_pcm_set_sync(substream);
936 
937 	spin_lock_irq(&rme32->lock);
938         if (rme32->playback_substream != NULL) {
939 		spin_unlock_irq(&rme32->lock);
940                 return -EBUSY;
941         }
942 	rme32->wcreg |= RME32_WCR_ADAT;
943 	writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
944 	rme32->playback_substream = substream;
945 	spin_unlock_irq(&rme32->lock);
946 
947 	if (rme32->fullduplex_mode)
948 		runtime->hw = snd_rme32_adat_fd_info;
949 	else
950 		runtime->hw = snd_rme32_adat_info;
951 	if ((rme32->rcreg & RME32_RCR_KMODE) &&
952 	    (rate = snd_rme32_capture_getrate(rme32, &dummy)) > 0) {
953                 /* AutoSync */
954                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
955                 runtime->hw.rate_min = rate;
956                 runtime->hw.rate_max = rate;
957 	}
958 
959 	snd_rme32_set_buffer_constraint(rme32, runtime);
960 	return 0;
961 }
962 
963 static int
964 snd_rme32_capture_adat_open(struct snd_pcm_substream *substream)
965 {
966 	int isadat, rate;
967 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
968 	struct snd_pcm_runtime *runtime = substream->runtime;
969 
970 	if (rme32->fullduplex_mode)
971 		runtime->hw = snd_rme32_adat_fd_info;
972 	else
973 		runtime->hw = snd_rme32_adat_info;
974 	if ((rate = snd_rme32_capture_getrate(rme32, &isadat)) > 0) {
975 		if (!isadat) {
976 			return -EIO;
977 		}
978                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
979                 runtime->hw.rate_min = rate;
980                 runtime->hw.rate_max = rate;
981         }
982 
983 	snd_pcm_set_sync(substream);
984 
985 	spin_lock_irq(&rme32->lock);
986 	if (rme32->capture_substream != NULL) {
987 		spin_unlock_irq(&rme32->lock);
988 		return -EBUSY;
989         }
990 	rme32->capture_substream = substream;
991 	spin_unlock_irq(&rme32->lock);
992 
993 	snd_rme32_set_buffer_constraint(rme32, runtime);
994 	return 0;
995 }
996 
997 static int snd_rme32_playback_close(struct snd_pcm_substream *substream)
998 {
999 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1000 	int spdif = 0;
1001 
1002 	spin_lock_irq(&rme32->lock);
1003 	rme32->playback_substream = NULL;
1004 	rme32->playback_periodsize = 0;
1005 	spdif = (rme32->wcreg & RME32_WCR_ADAT) == 0;
1006 	spin_unlock_irq(&rme32->lock);
1007 	if (spdif) {
1008 		rme32->spdif_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1009 		snd_ctl_notify(rme32->card, SNDRV_CTL_EVENT_MASK_VALUE |
1010 			       SNDRV_CTL_EVENT_MASK_INFO,
1011 			       &rme32->spdif_ctl->id);
1012 	}
1013 	return 0;
1014 }
1015 
1016 static int snd_rme32_capture_close(struct snd_pcm_substream *substream)
1017 {
1018 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1019 
1020 	spin_lock_irq(&rme32->lock);
1021 	rme32->capture_substream = NULL;
1022 	rme32->capture_periodsize = 0;
1023 	spin_unlock(&rme32->lock);
1024 	return 0;
1025 }
1026 
1027 static int snd_rme32_playback_prepare(struct snd_pcm_substream *substream)
1028 {
1029 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1030 
1031 	spin_lock_irq(&rme32->lock);
1032 	if (rme32->fullduplex_mode) {
1033 		memset(&rme32->playback_pcm, 0, sizeof(rme32->playback_pcm));
1034 		rme32->playback_pcm.hw_buffer_size = RME32_BUFFER_SIZE;
1035 		rme32->playback_pcm.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1036 	} else {
1037 		writel(0, rme32->iobase + RME32_IO_RESET_POS);
1038 	}
1039 	if (rme32->wcreg & RME32_WCR_SEL)
1040 		rme32->wcreg &= ~RME32_WCR_MUTE;
1041 	writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
1042 	spin_unlock_irq(&rme32->lock);
1043 	return 0;
1044 }
1045 
1046 static int snd_rme32_capture_prepare(struct snd_pcm_substream *substream)
1047 {
1048 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1049 
1050 	spin_lock_irq(&rme32->lock);
1051 	if (rme32->fullduplex_mode) {
1052 		memset(&rme32->capture_pcm, 0, sizeof(rme32->capture_pcm));
1053 		rme32->capture_pcm.hw_buffer_size = RME32_BUFFER_SIZE;
1054 		rme32->capture_pcm.hw_queue_size = RME32_BUFFER_SIZE / 2;
1055 		rme32->capture_pcm.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1056 	} else {
1057 		writel(0, rme32->iobase + RME32_IO_RESET_POS);
1058 	}
1059 	spin_unlock_irq(&rme32->lock);
1060 	return 0;
1061 }
1062 
1063 static int
1064 snd_rme32_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1065 {
1066 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1067 	struct snd_pcm_substream *s;
1068 
1069 	spin_lock(&rme32->lock);
1070 	snd_pcm_group_for_each_entry(s, substream) {
1071 		if (s != rme32->playback_substream &&
1072 		    s != rme32->capture_substream)
1073 			continue;
1074 		switch (cmd) {
1075 		case SNDRV_PCM_TRIGGER_START:
1076 			rme32->running |= (1 << s->stream);
1077 			if (rme32->fullduplex_mode) {
1078 				/* remember the current DMA position */
1079 				if (s == rme32->playback_substream) {
1080 					rme32->playback_pcm.hw_io =
1081 					rme32->playback_pcm.hw_data = snd_rme32_pcm_byteptr(rme32);
1082 				} else {
1083 					rme32->capture_pcm.hw_io =
1084 					rme32->capture_pcm.hw_data = snd_rme32_pcm_byteptr(rme32);
1085 				}
1086 			}
1087 			break;
1088 		case SNDRV_PCM_TRIGGER_STOP:
1089 			rme32->running &= ~(1 << s->stream);
1090 			break;
1091 		}
1092 		snd_pcm_trigger_done(s, substream);
1093 	}
1094 
1095 	/* prefill playback buffer */
1096 	if (cmd == SNDRV_PCM_TRIGGER_START && rme32->fullduplex_mode) {
1097 		snd_pcm_group_for_each_entry(s, substream) {
1098 			if (s == rme32->playback_substream) {
1099 				s->ops->ack(s);
1100 				break;
1101 			}
1102 		}
1103 	}
1104 
1105 	switch (cmd) {
1106 	case SNDRV_PCM_TRIGGER_START:
1107 		if (rme32->running && ! RME32_ISWORKING(rme32))
1108 			snd_rme32_pcm_start(rme32, 0);
1109 		break;
1110 	case SNDRV_PCM_TRIGGER_STOP:
1111 		if (! rme32->running && RME32_ISWORKING(rme32))
1112 			snd_rme32_pcm_stop(rme32, 0);
1113 		break;
1114 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1115 		if (rme32->running && RME32_ISWORKING(rme32))
1116 			snd_rme32_pcm_stop(rme32, 1);
1117 		break;
1118 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1119 		if (rme32->running && ! RME32_ISWORKING(rme32))
1120 			snd_rme32_pcm_start(rme32, 1);
1121 		break;
1122 	}
1123 	spin_unlock(&rme32->lock);
1124 	return 0;
1125 }
1126 
1127 /* pointer callback for halfduplex mode */
1128 static snd_pcm_uframes_t
1129 snd_rme32_playback_pointer(struct snd_pcm_substream *substream)
1130 {
1131 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1132 	return snd_rme32_pcm_byteptr(rme32) >> rme32->playback_frlog;
1133 }
1134 
1135 static snd_pcm_uframes_t
1136 snd_rme32_capture_pointer(struct snd_pcm_substream *substream)
1137 {
1138 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1139 	return snd_rme32_pcm_byteptr(rme32) >> rme32->capture_frlog;
1140 }
1141 
1142 
1143 /* ack and pointer callbacks for fullduplex mode */
1144 static void snd_rme32_pb_trans_copy(struct snd_pcm_substream *substream,
1145 				    struct snd_pcm_indirect *rec, size_t bytes)
1146 {
1147 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1148 	memcpy_toio(rme32->iobase + RME32_IO_DATA_BUFFER + rec->hw_data,
1149 		    substream->runtime->dma_area + rec->sw_data, bytes);
1150 }
1151 
1152 static int snd_rme32_playback_fd_ack(struct snd_pcm_substream *substream)
1153 {
1154 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1155 	struct snd_pcm_indirect *rec, *cprec;
1156 
1157 	rec = &rme32->playback_pcm;
1158 	cprec = &rme32->capture_pcm;
1159 	spin_lock(&rme32->lock);
1160 	rec->hw_queue_size = RME32_BUFFER_SIZE;
1161 	if (rme32->running & (1 << SNDRV_PCM_STREAM_CAPTURE))
1162 		rec->hw_queue_size -= cprec->hw_ready;
1163 	spin_unlock(&rme32->lock);
1164 	snd_pcm_indirect_playback_transfer(substream, rec,
1165 					   snd_rme32_pb_trans_copy);
1166 	return 0;
1167 }
1168 
1169 static void snd_rme32_cp_trans_copy(struct snd_pcm_substream *substream,
1170 				    struct snd_pcm_indirect *rec, size_t bytes)
1171 {
1172 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1173 	memcpy_fromio(substream->runtime->dma_area + rec->sw_data,
1174 		      rme32->iobase + RME32_IO_DATA_BUFFER + rec->hw_data,
1175 		      bytes);
1176 }
1177 
1178 static int snd_rme32_capture_fd_ack(struct snd_pcm_substream *substream)
1179 {
1180 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1181 	snd_pcm_indirect_capture_transfer(substream, &rme32->capture_pcm,
1182 					  snd_rme32_cp_trans_copy);
1183 	return 0;
1184 }
1185 
1186 static snd_pcm_uframes_t
1187 snd_rme32_playback_fd_pointer(struct snd_pcm_substream *substream)
1188 {
1189 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1190 	return snd_pcm_indirect_playback_pointer(substream, &rme32->playback_pcm,
1191 						 snd_rme32_pcm_byteptr(rme32));
1192 }
1193 
1194 static snd_pcm_uframes_t
1195 snd_rme32_capture_fd_pointer(struct snd_pcm_substream *substream)
1196 {
1197 	struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1198 	return snd_pcm_indirect_capture_pointer(substream, &rme32->capture_pcm,
1199 						snd_rme32_pcm_byteptr(rme32));
1200 }
1201 
1202 /* for halfduplex mode */
1203 static struct snd_pcm_ops snd_rme32_playback_spdif_ops = {
1204 	.open =		snd_rme32_playback_spdif_open,
1205 	.close =	snd_rme32_playback_close,
1206 	.ioctl =	snd_pcm_lib_ioctl,
1207 	.hw_params =	snd_rme32_playback_hw_params,
1208 	.hw_free =	snd_rme32_pcm_hw_free,
1209 	.prepare =	snd_rme32_playback_prepare,
1210 	.trigger =	snd_rme32_pcm_trigger,
1211 	.pointer =	snd_rme32_playback_pointer,
1212 	.copy =		snd_rme32_playback_copy,
1213 	.silence =	snd_rme32_playback_silence,
1214 	.mmap =		snd_pcm_lib_mmap_iomem,
1215 };
1216 
1217 static struct snd_pcm_ops snd_rme32_capture_spdif_ops = {
1218 	.open =		snd_rme32_capture_spdif_open,
1219 	.close =	snd_rme32_capture_close,
1220 	.ioctl =	snd_pcm_lib_ioctl,
1221 	.hw_params =	snd_rme32_capture_hw_params,
1222 	.hw_free =	snd_rme32_pcm_hw_free,
1223 	.prepare =	snd_rme32_capture_prepare,
1224 	.trigger =	snd_rme32_pcm_trigger,
1225 	.pointer =	snd_rme32_capture_pointer,
1226 	.copy =		snd_rme32_capture_copy,
1227 	.mmap =		snd_pcm_lib_mmap_iomem,
1228 };
1229 
1230 static struct snd_pcm_ops snd_rme32_playback_adat_ops = {
1231 	.open =		snd_rme32_playback_adat_open,
1232 	.close =	snd_rme32_playback_close,
1233 	.ioctl =	snd_pcm_lib_ioctl,
1234 	.hw_params =	snd_rme32_playback_hw_params,
1235 	.prepare =	snd_rme32_playback_prepare,
1236 	.trigger =	snd_rme32_pcm_trigger,
1237 	.pointer =	snd_rme32_playback_pointer,
1238 	.copy =		snd_rme32_playback_copy,
1239 	.silence =	snd_rme32_playback_silence,
1240 	.mmap =		snd_pcm_lib_mmap_iomem,
1241 };
1242 
1243 static struct snd_pcm_ops snd_rme32_capture_adat_ops = {
1244 	.open =		snd_rme32_capture_adat_open,
1245 	.close =	snd_rme32_capture_close,
1246 	.ioctl =	snd_pcm_lib_ioctl,
1247 	.hw_params =	snd_rme32_capture_hw_params,
1248 	.prepare =	snd_rme32_capture_prepare,
1249 	.trigger =	snd_rme32_pcm_trigger,
1250 	.pointer =	snd_rme32_capture_pointer,
1251 	.copy =		snd_rme32_capture_copy,
1252 	.mmap =		snd_pcm_lib_mmap_iomem,
1253 };
1254 
1255 /* for fullduplex mode */
1256 static struct snd_pcm_ops snd_rme32_playback_spdif_fd_ops = {
1257 	.open =		snd_rme32_playback_spdif_open,
1258 	.close =	snd_rme32_playback_close,
1259 	.ioctl =	snd_pcm_lib_ioctl,
1260 	.hw_params =	snd_rme32_playback_hw_params,
1261 	.hw_free =	snd_rme32_pcm_hw_free,
1262 	.prepare =	snd_rme32_playback_prepare,
1263 	.trigger =	snd_rme32_pcm_trigger,
1264 	.pointer =	snd_rme32_playback_fd_pointer,
1265 	.ack =		snd_rme32_playback_fd_ack,
1266 };
1267 
1268 static struct snd_pcm_ops snd_rme32_capture_spdif_fd_ops = {
1269 	.open =		snd_rme32_capture_spdif_open,
1270 	.close =	snd_rme32_capture_close,
1271 	.ioctl =	snd_pcm_lib_ioctl,
1272 	.hw_params =	snd_rme32_capture_hw_params,
1273 	.hw_free =	snd_rme32_pcm_hw_free,
1274 	.prepare =	snd_rme32_capture_prepare,
1275 	.trigger =	snd_rme32_pcm_trigger,
1276 	.pointer =	snd_rme32_capture_fd_pointer,
1277 	.ack =		snd_rme32_capture_fd_ack,
1278 };
1279 
1280 static struct snd_pcm_ops snd_rme32_playback_adat_fd_ops = {
1281 	.open =		snd_rme32_playback_adat_open,
1282 	.close =	snd_rme32_playback_close,
1283 	.ioctl =	snd_pcm_lib_ioctl,
1284 	.hw_params =	snd_rme32_playback_hw_params,
1285 	.prepare =	snd_rme32_playback_prepare,
1286 	.trigger =	snd_rme32_pcm_trigger,
1287 	.pointer =	snd_rme32_playback_fd_pointer,
1288 	.ack =		snd_rme32_playback_fd_ack,
1289 };
1290 
1291 static struct snd_pcm_ops snd_rme32_capture_adat_fd_ops = {
1292 	.open =		snd_rme32_capture_adat_open,
1293 	.close =	snd_rme32_capture_close,
1294 	.ioctl =	snd_pcm_lib_ioctl,
1295 	.hw_params =	snd_rme32_capture_hw_params,
1296 	.prepare =	snd_rme32_capture_prepare,
1297 	.trigger =	snd_rme32_pcm_trigger,
1298 	.pointer =	snd_rme32_capture_fd_pointer,
1299 	.ack =		snd_rme32_capture_fd_ack,
1300 };
1301 
1302 static void snd_rme32_free(void *private_data)
1303 {
1304 	struct rme32 *rme32 = (struct rme32 *) private_data;
1305 
1306 	if (rme32 == NULL) {
1307 		return;
1308 	}
1309 	if (rme32->irq >= 0) {
1310 		snd_rme32_pcm_stop(rme32, 0);
1311 		free_irq(rme32->irq, (void *) rme32);
1312 		rme32->irq = -1;
1313 	}
1314 	if (rme32->iobase) {
1315 		iounmap(rme32->iobase);
1316 		rme32->iobase = NULL;
1317 	}
1318 	if (rme32->port) {
1319 		pci_release_regions(rme32->pci);
1320 		rme32->port = 0;
1321 	}
1322 	pci_disable_device(rme32->pci);
1323 }
1324 
1325 static void snd_rme32_free_spdif_pcm(struct snd_pcm *pcm)
1326 {
1327 	struct rme32 *rme32 = (struct rme32 *) pcm->private_data;
1328 	rme32->spdif_pcm = NULL;
1329 }
1330 
1331 static void
1332 snd_rme32_free_adat_pcm(struct snd_pcm *pcm)
1333 {
1334 	struct rme32 *rme32 = (struct rme32 *) pcm->private_data;
1335 	rme32->adat_pcm = NULL;
1336 }
1337 
1338 static int __devinit snd_rme32_create(struct rme32 * rme32)
1339 {
1340 	struct pci_dev *pci = rme32->pci;
1341 	int err;
1342 
1343 	rme32->irq = -1;
1344 	spin_lock_init(&rme32->lock);
1345 
1346 	if ((err = pci_enable_device(pci)) < 0)
1347 		return err;
1348 
1349 	if ((err = pci_request_regions(pci, "RME32")) < 0)
1350 		return err;
1351 	rme32->port = pci_resource_start(rme32->pci, 0);
1352 
1353 	rme32->iobase = ioremap_nocache(rme32->port, RME32_IO_SIZE);
1354 	if (!rme32->iobase) {
1355 		snd_printk(KERN_ERR "unable to remap memory region 0x%lx-0x%lx\n",
1356 			   rme32->port, rme32->port + RME32_IO_SIZE - 1);
1357 		return -ENOMEM;
1358 	}
1359 
1360 	if (request_irq(pci->irq, snd_rme32_interrupt, IRQF_SHARED,
1361 			"RME32", rme32)) {
1362 		snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1363 		return -EBUSY;
1364 	}
1365 	rme32->irq = pci->irq;
1366 
1367 	/* read the card's revision number */
1368 	pci_read_config_byte(pci, 8, &rme32->rev);
1369 
1370 	/* set up ALSA pcm device for S/PDIF */
1371 	if ((err = snd_pcm_new(rme32->card, "Digi32 IEC958", 0, 1, 1, &rme32->spdif_pcm)) < 0) {
1372 		return err;
1373 	}
1374 	rme32->spdif_pcm->private_data = rme32;
1375 	rme32->spdif_pcm->private_free = snd_rme32_free_spdif_pcm;
1376 	strcpy(rme32->spdif_pcm->name, "Digi32 IEC958");
1377 	if (rme32->fullduplex_mode) {
1378 		snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_PLAYBACK,
1379 				&snd_rme32_playback_spdif_fd_ops);
1380 		snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_CAPTURE,
1381 				&snd_rme32_capture_spdif_fd_ops);
1382 		snd_pcm_lib_preallocate_pages_for_all(rme32->spdif_pcm, SNDRV_DMA_TYPE_CONTINUOUS,
1383 						      snd_dma_continuous_data(GFP_KERNEL),
1384 						      0, RME32_MID_BUFFER_SIZE);
1385 		rme32->spdif_pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
1386 	} else {
1387 		snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_PLAYBACK,
1388 				&snd_rme32_playback_spdif_ops);
1389 		snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_CAPTURE,
1390 				&snd_rme32_capture_spdif_ops);
1391 		rme32->spdif_pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
1392 	}
1393 
1394 	/* set up ALSA pcm device for ADAT */
1395 	if ((pci->device == PCI_DEVICE_ID_RME_DIGI32) ||
1396 	    (pci->device == PCI_DEVICE_ID_RME_DIGI32_PRO)) {
1397 		/* ADAT is not available on DIGI32 and DIGI32 Pro */
1398 		rme32->adat_pcm = NULL;
1399 	}
1400 	else {
1401 		if ((err = snd_pcm_new(rme32->card, "Digi32 ADAT", 1,
1402 				       1, 1, &rme32->adat_pcm)) < 0)
1403 		{
1404 			return err;
1405 		}
1406 		rme32->adat_pcm->private_data = rme32;
1407 		rme32->adat_pcm->private_free = snd_rme32_free_adat_pcm;
1408 		strcpy(rme32->adat_pcm->name, "Digi32 ADAT");
1409 		if (rme32->fullduplex_mode) {
1410 			snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_PLAYBACK,
1411 					&snd_rme32_playback_adat_fd_ops);
1412 			snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_CAPTURE,
1413 					&snd_rme32_capture_adat_fd_ops);
1414 			snd_pcm_lib_preallocate_pages_for_all(rme32->adat_pcm, SNDRV_DMA_TYPE_CONTINUOUS,
1415 							      snd_dma_continuous_data(GFP_KERNEL),
1416 							      0, RME32_MID_BUFFER_SIZE);
1417 			rme32->adat_pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
1418 		} else {
1419 			snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_PLAYBACK,
1420 					&snd_rme32_playback_adat_ops);
1421 			snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_CAPTURE,
1422 					&snd_rme32_capture_adat_ops);
1423 			rme32->adat_pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
1424 		}
1425 	}
1426 
1427 
1428 	rme32->playback_periodsize = 0;
1429 	rme32->capture_periodsize = 0;
1430 
1431 	/* make sure playback/capture is stopped, if by some reason active */
1432 	snd_rme32_pcm_stop(rme32, 0);
1433 
1434         /* reset DAC */
1435         snd_rme32_reset_dac(rme32);
1436 
1437 	/* reset buffer pointer */
1438 	writel(0, rme32->iobase + RME32_IO_RESET_POS);
1439 
1440 	/* set default values in registers */
1441 	rme32->wcreg = RME32_WCR_SEL |	 /* normal playback */
1442 		RME32_WCR_INP_0 | /* input select */
1443 		RME32_WCR_MUTE;	 /* muting on */
1444 	writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
1445 
1446 
1447 	/* init switch interface */
1448 	if ((err = snd_rme32_create_switches(rme32->card, rme32)) < 0) {
1449 		return err;
1450 	}
1451 
1452 	/* init proc interface */
1453 	snd_rme32_proc_init(rme32);
1454 
1455 	rme32->capture_substream = NULL;
1456 	rme32->playback_substream = NULL;
1457 
1458 	return 0;
1459 }
1460 
1461 /*
1462  * proc interface
1463  */
1464 
1465 static void
1466 snd_rme32_proc_read(struct snd_info_entry * entry, struct snd_info_buffer *buffer)
1467 {
1468 	int n;
1469 	struct rme32 *rme32 = (struct rme32 *) entry->private_data;
1470 
1471 	rme32->rcreg = readl(rme32->iobase + RME32_IO_CONTROL_REGISTER);
1472 
1473 	snd_iprintf(buffer, rme32->card->longname);
1474 	snd_iprintf(buffer, " (index #%d)\n", rme32->card->number + 1);
1475 
1476 	snd_iprintf(buffer, "\nGeneral settings\n");
1477 	if (rme32->fullduplex_mode)
1478 		snd_iprintf(buffer, "  Full-duplex mode\n");
1479 	else
1480 		snd_iprintf(buffer, "  Half-duplex mode\n");
1481 	if (RME32_PRO_WITH_8414(rme32)) {
1482 		snd_iprintf(buffer, "  receiver: CS8414\n");
1483 	} else {
1484 		snd_iprintf(buffer, "  receiver: CS8412\n");
1485 	}
1486 	if (rme32->wcreg & RME32_WCR_MODE24) {
1487 		snd_iprintf(buffer, "  format: 24 bit");
1488 	} else {
1489 		snd_iprintf(buffer, "  format: 16 bit");
1490 	}
1491 	if (rme32->wcreg & RME32_WCR_MONO) {
1492 		snd_iprintf(buffer, ", Mono\n");
1493 	} else {
1494 		snd_iprintf(buffer, ", Stereo\n");
1495 	}
1496 
1497 	snd_iprintf(buffer, "\nInput settings\n");
1498 	switch (snd_rme32_getinputtype(rme32)) {
1499 	case RME32_INPUT_OPTICAL:
1500 		snd_iprintf(buffer, "  input: optical");
1501 		break;
1502 	case RME32_INPUT_COAXIAL:
1503 		snd_iprintf(buffer, "  input: coaxial");
1504 		break;
1505 	case RME32_INPUT_INTERNAL:
1506 		snd_iprintf(buffer, "  input: internal");
1507 		break;
1508 	case RME32_INPUT_XLR:
1509 		snd_iprintf(buffer, "  input: XLR");
1510 		break;
1511 	}
1512 	if (snd_rme32_capture_getrate(rme32, &n) < 0) {
1513 		snd_iprintf(buffer, "\n  sample rate: no valid signal\n");
1514 	} else {
1515 		if (n) {
1516 			snd_iprintf(buffer, " (8 channels)\n");
1517 		} else {
1518 			snd_iprintf(buffer, " (2 channels)\n");
1519 		}
1520 		snd_iprintf(buffer, "  sample rate: %d Hz\n",
1521 			    snd_rme32_capture_getrate(rme32, &n));
1522 	}
1523 
1524 	snd_iprintf(buffer, "\nOutput settings\n");
1525 	if (rme32->wcreg & RME32_WCR_SEL) {
1526 		snd_iprintf(buffer, "  output signal: normal playback");
1527 	} else {
1528 		snd_iprintf(buffer, "  output signal: same as input");
1529 	}
1530 	if (rme32->wcreg & RME32_WCR_MUTE) {
1531 		snd_iprintf(buffer, " (muted)\n");
1532 	} else {
1533 		snd_iprintf(buffer, "\n");
1534 	}
1535 
1536 	/* master output frequency */
1537 	if (!
1538 	    ((!(rme32->wcreg & RME32_WCR_FREQ_0))
1539 	     && (!(rme32->wcreg & RME32_WCR_FREQ_1)))) {
1540 		snd_iprintf(buffer, "  sample rate: %d Hz\n",
1541 			    snd_rme32_playback_getrate(rme32));
1542 	}
1543 	if (rme32->rcreg & RME32_RCR_KMODE) {
1544 		snd_iprintf(buffer, "  sample clock source: AutoSync\n");
1545 	} else {
1546 		snd_iprintf(buffer, "  sample clock source: Internal\n");
1547 	}
1548 	if (rme32->wcreg & RME32_WCR_PRO) {
1549 		snd_iprintf(buffer, "  format: AES/EBU (professional)\n");
1550 	} else {
1551 		snd_iprintf(buffer, "  format: IEC958 (consumer)\n");
1552 	}
1553 	if (rme32->wcreg & RME32_WCR_EMP) {
1554 		snd_iprintf(buffer, "  emphasis: on\n");
1555 	} else {
1556 		snd_iprintf(buffer, "  emphasis: off\n");
1557 	}
1558 }
1559 
1560 static void __devinit snd_rme32_proc_init(struct rme32 * rme32)
1561 {
1562 	struct snd_info_entry *entry;
1563 
1564 	if (! snd_card_proc_new(rme32->card, "rme32", &entry))
1565 		snd_info_set_text_ops(entry, rme32, snd_rme32_proc_read);
1566 }
1567 
1568 /*
1569  * control interface
1570  */
1571 
1572 #define snd_rme32_info_loopback_control		snd_ctl_boolean_mono_info
1573 
1574 static int
1575 snd_rme32_get_loopback_control(struct snd_kcontrol *kcontrol,
1576 			       struct snd_ctl_elem_value *ucontrol)
1577 {
1578 	struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1579 
1580 	spin_lock_irq(&rme32->lock);
1581 	ucontrol->value.integer.value[0] =
1582 	    rme32->wcreg & RME32_WCR_SEL ? 0 : 1;
1583 	spin_unlock_irq(&rme32->lock);
1584 	return 0;
1585 }
1586 static int
1587 snd_rme32_put_loopback_control(struct snd_kcontrol *kcontrol,
1588 			       struct snd_ctl_elem_value *ucontrol)
1589 {
1590 	struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1591 	unsigned int val;
1592 	int change;
1593 
1594 	val = ucontrol->value.integer.value[0] ? 0 : RME32_WCR_SEL;
1595 	spin_lock_irq(&rme32->lock);
1596 	val = (rme32->wcreg & ~RME32_WCR_SEL) | val;
1597 	change = val != rme32->wcreg;
1598 	if (ucontrol->value.integer.value[0])
1599 		val &= ~RME32_WCR_MUTE;
1600 	else
1601 		val |= RME32_WCR_MUTE;
1602 	rme32->wcreg = val;
1603 	writel(val, rme32->iobase + RME32_IO_CONTROL_REGISTER);
1604 	spin_unlock_irq(&rme32->lock);
1605 	return change;
1606 }
1607 
1608 static int
1609 snd_rme32_info_inputtype_control(struct snd_kcontrol *kcontrol,
1610 				 struct snd_ctl_elem_info *uinfo)
1611 {
1612 	struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1613 	static char *texts[4] = { "Optical", "Coaxial", "Internal", "XLR" };
1614 
1615 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1616 	uinfo->count = 1;
1617 	switch (rme32->pci->device) {
1618 	case PCI_DEVICE_ID_RME_DIGI32:
1619 	case PCI_DEVICE_ID_RME_DIGI32_8:
1620 		uinfo->value.enumerated.items = 3;
1621 		break;
1622 	case PCI_DEVICE_ID_RME_DIGI32_PRO:
1623 		uinfo->value.enumerated.items = 4;
1624 		break;
1625 	default:
1626 		snd_BUG();
1627 		break;
1628 	}
1629 	if (uinfo->value.enumerated.item >
1630 	    uinfo->value.enumerated.items - 1) {
1631 		uinfo->value.enumerated.item =
1632 		    uinfo->value.enumerated.items - 1;
1633 	}
1634 	strcpy(uinfo->value.enumerated.name,
1635 	       texts[uinfo->value.enumerated.item]);
1636 	return 0;
1637 }
1638 static int
1639 snd_rme32_get_inputtype_control(struct snd_kcontrol *kcontrol,
1640 				struct snd_ctl_elem_value *ucontrol)
1641 {
1642 	struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1643 	unsigned int items = 3;
1644 
1645 	spin_lock_irq(&rme32->lock);
1646 	ucontrol->value.enumerated.item[0] = snd_rme32_getinputtype(rme32);
1647 
1648 	switch (rme32->pci->device) {
1649 	case PCI_DEVICE_ID_RME_DIGI32:
1650 	case PCI_DEVICE_ID_RME_DIGI32_8:
1651 		items = 3;
1652 		break;
1653 	case PCI_DEVICE_ID_RME_DIGI32_PRO:
1654 		items = 4;
1655 		break;
1656 	default:
1657 		snd_BUG();
1658 		break;
1659 	}
1660 	if (ucontrol->value.enumerated.item[0] >= items) {
1661 		ucontrol->value.enumerated.item[0] = items - 1;
1662 	}
1663 
1664 	spin_unlock_irq(&rme32->lock);
1665 	return 0;
1666 }
1667 static int
1668 snd_rme32_put_inputtype_control(struct snd_kcontrol *kcontrol,
1669 				struct snd_ctl_elem_value *ucontrol)
1670 {
1671 	struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1672 	unsigned int val;
1673 	int change, items = 3;
1674 
1675 	switch (rme32->pci->device) {
1676 	case PCI_DEVICE_ID_RME_DIGI32:
1677 	case PCI_DEVICE_ID_RME_DIGI32_8:
1678 		items = 3;
1679 		break;
1680 	case PCI_DEVICE_ID_RME_DIGI32_PRO:
1681 		items = 4;
1682 		break;
1683 	default:
1684 		snd_BUG();
1685 		break;
1686 	}
1687 	val = ucontrol->value.enumerated.item[0] % items;
1688 
1689 	spin_lock_irq(&rme32->lock);
1690 	change = val != (unsigned int)snd_rme32_getinputtype(rme32);
1691 	snd_rme32_setinputtype(rme32, val);
1692 	spin_unlock_irq(&rme32->lock);
1693 	return change;
1694 }
1695 
1696 static int
1697 snd_rme32_info_clockmode_control(struct snd_kcontrol *kcontrol,
1698 				 struct snd_ctl_elem_info *uinfo)
1699 {
1700 	static char *texts[4] = { "AutoSync",
1701 				  "Internal 32.0kHz",
1702 				  "Internal 44.1kHz",
1703 				  "Internal 48.0kHz" };
1704 
1705 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1706 	uinfo->count = 1;
1707 	uinfo->value.enumerated.items = 4;
1708 	if (uinfo->value.enumerated.item > 3) {
1709 		uinfo->value.enumerated.item = 3;
1710 	}
1711 	strcpy(uinfo->value.enumerated.name,
1712 	       texts[uinfo->value.enumerated.item]);
1713 	return 0;
1714 }
1715 static int
1716 snd_rme32_get_clockmode_control(struct snd_kcontrol *kcontrol,
1717 				struct snd_ctl_elem_value *ucontrol)
1718 {
1719 	struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1720 
1721 	spin_lock_irq(&rme32->lock);
1722 	ucontrol->value.enumerated.item[0] = snd_rme32_getclockmode(rme32);
1723 	spin_unlock_irq(&rme32->lock);
1724 	return 0;
1725 }
1726 static int
1727 snd_rme32_put_clockmode_control(struct snd_kcontrol *kcontrol,
1728 				struct snd_ctl_elem_value *ucontrol)
1729 {
1730 	struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1731 	unsigned int val;
1732 	int change;
1733 
1734 	val = ucontrol->value.enumerated.item[0] % 3;
1735 	spin_lock_irq(&rme32->lock);
1736 	change = val != (unsigned int)snd_rme32_getclockmode(rme32);
1737 	snd_rme32_setclockmode(rme32, val);
1738 	spin_unlock_irq(&rme32->lock);
1739 	return change;
1740 }
1741 
1742 static u32 snd_rme32_convert_from_aes(struct snd_aes_iec958 * aes)
1743 {
1744 	u32 val = 0;
1745 	val |= (aes->status[0] & IEC958_AES0_PROFESSIONAL) ? RME32_WCR_PRO : 0;
1746 	if (val & RME32_WCR_PRO)
1747 		val |= (aes->status[0] & IEC958_AES0_PRO_EMPHASIS_5015) ? RME32_WCR_EMP : 0;
1748 	else
1749 		val |= (aes->status[0] & IEC958_AES0_CON_EMPHASIS_5015) ? RME32_WCR_EMP : 0;
1750 	return val;
1751 }
1752 
1753 static void snd_rme32_convert_to_aes(struct snd_aes_iec958 * aes, u32 val)
1754 {
1755 	aes->status[0] = ((val & RME32_WCR_PRO) ? IEC958_AES0_PROFESSIONAL : 0);
1756 	if (val & RME32_WCR_PRO)
1757 		aes->status[0] |= (val & RME32_WCR_EMP) ? IEC958_AES0_PRO_EMPHASIS_5015 : 0;
1758 	else
1759 		aes->status[0] |= (val & RME32_WCR_EMP) ? IEC958_AES0_CON_EMPHASIS_5015 : 0;
1760 }
1761 
1762 static int snd_rme32_control_spdif_info(struct snd_kcontrol *kcontrol,
1763 					struct snd_ctl_elem_info *uinfo)
1764 {
1765 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1766 	uinfo->count = 1;
1767 	return 0;
1768 }
1769 
1770 static int snd_rme32_control_spdif_get(struct snd_kcontrol *kcontrol,
1771 				       struct snd_ctl_elem_value *ucontrol)
1772 {
1773 	struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1774 
1775 	snd_rme32_convert_to_aes(&ucontrol->value.iec958,
1776 				 rme32->wcreg_spdif);
1777 	return 0;
1778 }
1779 
1780 static int snd_rme32_control_spdif_put(struct snd_kcontrol *kcontrol,
1781 				       struct snd_ctl_elem_value *ucontrol)
1782 {
1783 	struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1784 	int change;
1785 	u32 val;
1786 
1787 	val = snd_rme32_convert_from_aes(&ucontrol->value.iec958);
1788 	spin_lock_irq(&rme32->lock);
1789 	change = val != rme32->wcreg_spdif;
1790 	rme32->wcreg_spdif = val;
1791 	spin_unlock_irq(&rme32->lock);
1792 	return change;
1793 }
1794 
1795 static int snd_rme32_control_spdif_stream_info(struct snd_kcontrol *kcontrol,
1796 					       struct snd_ctl_elem_info *uinfo)
1797 {
1798 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1799 	uinfo->count = 1;
1800 	return 0;
1801 }
1802 
1803 static int snd_rme32_control_spdif_stream_get(struct snd_kcontrol *kcontrol,
1804 					      struct snd_ctl_elem_value *
1805 					      ucontrol)
1806 {
1807 	struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1808 
1809 	snd_rme32_convert_to_aes(&ucontrol->value.iec958,
1810 				 rme32->wcreg_spdif_stream);
1811 	return 0;
1812 }
1813 
1814 static int snd_rme32_control_spdif_stream_put(struct snd_kcontrol *kcontrol,
1815 					      struct snd_ctl_elem_value *
1816 					      ucontrol)
1817 {
1818 	struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1819 	int change;
1820 	u32 val;
1821 
1822 	val = snd_rme32_convert_from_aes(&ucontrol->value.iec958);
1823 	spin_lock_irq(&rme32->lock);
1824 	change = val != rme32->wcreg_spdif_stream;
1825 	rme32->wcreg_spdif_stream = val;
1826 	rme32->wcreg &= ~(RME32_WCR_PRO | RME32_WCR_EMP);
1827 	rme32->wcreg |= val;
1828 	writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
1829 	spin_unlock_irq(&rme32->lock);
1830 	return change;
1831 }
1832 
1833 static int snd_rme32_control_spdif_mask_info(struct snd_kcontrol *kcontrol,
1834 					     struct snd_ctl_elem_info *uinfo)
1835 {
1836 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1837 	uinfo->count = 1;
1838 	return 0;
1839 }
1840 
1841 static int snd_rme32_control_spdif_mask_get(struct snd_kcontrol *kcontrol,
1842 					    struct snd_ctl_elem_value *
1843 					    ucontrol)
1844 {
1845 	ucontrol->value.iec958.status[0] = kcontrol->private_value;
1846 	return 0;
1847 }
1848 
1849 static struct snd_kcontrol_new snd_rme32_controls[] = {
1850 	{
1851 		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
1852 		.name =	SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
1853 		.info =	snd_rme32_control_spdif_info,
1854 		.get =	snd_rme32_control_spdif_get,
1855 		.put =	snd_rme32_control_spdif_put
1856 	},
1857 	{
1858 		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
1859 		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
1860 		.name =	SNDRV_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM),
1861 		.info =	snd_rme32_control_spdif_stream_info,
1862 		.get =	snd_rme32_control_spdif_stream_get,
1863 		.put =	snd_rme32_control_spdif_stream_put
1864 	},
1865 	{
1866 		.access = SNDRV_CTL_ELEM_ACCESS_READ,
1867 		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
1868 		.name =	SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
1869 		.info =	snd_rme32_control_spdif_mask_info,
1870 		.get =	snd_rme32_control_spdif_mask_get,
1871 		.private_value = IEC958_AES0_PROFESSIONAL | IEC958_AES0_CON_EMPHASIS
1872 	},
1873 	{
1874 		.access = SNDRV_CTL_ELEM_ACCESS_READ,
1875 		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
1876 		.name =	SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
1877 		.info =	snd_rme32_control_spdif_mask_info,
1878 		.get =	snd_rme32_control_spdif_mask_get,
1879 		.private_value = IEC958_AES0_PROFESSIONAL | IEC958_AES0_PRO_EMPHASIS
1880 	},
1881 	{
1882 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1883 		.name =	"Input Connector",
1884 		.info =	snd_rme32_info_inputtype_control,
1885 		.get =	snd_rme32_get_inputtype_control,
1886 		.put =	snd_rme32_put_inputtype_control
1887 	},
1888 	{
1889 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1890 		.name =	"Loopback Input",
1891 		.info =	snd_rme32_info_loopback_control,
1892 		.get =	snd_rme32_get_loopback_control,
1893 		.put =	snd_rme32_put_loopback_control
1894 	},
1895 	{
1896 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1897 		.name =	"Sample Clock Source",
1898 		.info =	snd_rme32_info_clockmode_control,
1899 		.get =	snd_rme32_get_clockmode_control,
1900 		.put =	snd_rme32_put_clockmode_control
1901 	}
1902 };
1903 
1904 static int snd_rme32_create_switches(struct snd_card *card, struct rme32 * rme32)
1905 {
1906 	int idx, err;
1907 	struct snd_kcontrol *kctl;
1908 
1909 	for (idx = 0; idx < (int)ARRAY_SIZE(snd_rme32_controls); idx++) {
1910 		if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme32_controls[idx], rme32))) < 0)
1911 			return err;
1912 		if (idx == 1)	/* IEC958 (S/PDIF) Stream */
1913 			rme32->spdif_ctl = kctl;
1914 	}
1915 
1916 	return 0;
1917 }
1918 
1919 /*
1920  * Card initialisation
1921  */
1922 
1923 static void snd_rme32_card_free(struct snd_card *card)
1924 {
1925 	snd_rme32_free(card->private_data);
1926 }
1927 
1928 static int __devinit
1929 snd_rme32_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
1930 {
1931 	static int dev;
1932 	struct rme32 *rme32;
1933 	struct snd_card *card;
1934 	int err;
1935 
1936 	if (dev >= SNDRV_CARDS) {
1937 		return -ENODEV;
1938 	}
1939 	if (!enable[dev]) {
1940 		dev++;
1941 		return -ENOENT;
1942 	}
1943 
1944 	if ((card = snd_card_new(index[dev], id[dev], THIS_MODULE,
1945 				 sizeof(struct rme32))) == NULL)
1946 		return -ENOMEM;
1947 	card->private_free = snd_rme32_card_free;
1948 	rme32 = (struct rme32 *) card->private_data;
1949 	rme32->card = card;
1950 	rme32->pci = pci;
1951 	snd_card_set_dev(card, &pci->dev);
1952         if (fullduplex[dev])
1953 		rme32->fullduplex_mode = 1;
1954 	if ((err = snd_rme32_create(rme32)) < 0) {
1955 		snd_card_free(card);
1956 		return err;
1957 	}
1958 
1959 	strcpy(card->driver, "Digi32");
1960 	switch (rme32->pci->device) {
1961 	case PCI_DEVICE_ID_RME_DIGI32:
1962 		strcpy(card->shortname, "RME Digi32");
1963 		break;
1964 	case PCI_DEVICE_ID_RME_DIGI32_8:
1965 		strcpy(card->shortname, "RME Digi32/8");
1966 		break;
1967 	case PCI_DEVICE_ID_RME_DIGI32_PRO:
1968 		strcpy(card->shortname, "RME Digi32 PRO");
1969 		break;
1970 	}
1971 	sprintf(card->longname, "%s (Rev. %d) at 0x%lx, irq %d",
1972 		card->shortname, rme32->rev, rme32->port, rme32->irq);
1973 
1974 	if ((err = snd_card_register(card)) < 0) {
1975 		snd_card_free(card);
1976 		return err;
1977 	}
1978 	pci_set_drvdata(pci, card);
1979 	dev++;
1980 	return 0;
1981 }
1982 
1983 static void __devexit snd_rme32_remove(struct pci_dev *pci)
1984 {
1985 	snd_card_free(pci_get_drvdata(pci));
1986 	pci_set_drvdata(pci, NULL);
1987 }
1988 
1989 static struct pci_driver driver = {
1990 	.name =		"RME Digi32",
1991 	.id_table =	snd_rme32_ids,
1992 	.probe =	snd_rme32_probe,
1993 	.remove =	__devexit_p(snd_rme32_remove),
1994 };
1995 
1996 static int __init alsa_card_rme32_init(void)
1997 {
1998 	return pci_register_driver(&driver);
1999 }
2000 
2001 static void __exit alsa_card_rme32_exit(void)
2002 {
2003 	pci_unregister_driver(&driver);
2004 }
2005 
2006 module_init(alsa_card_rme32_init)
2007 module_exit(alsa_card_rme32_exit)
2008