xref: /linux/sound/pci/rme9652/rme9652.c (revision 6e8331ac6973435b1e7604c30f2ad394035b46e1)
1 /*
2  *   ALSA driver for RME Digi9652 audio interfaces
3  *
4  *	Copyright (c) 1999 IEM - Winfried Ritsch
5  *      Copyright (c) 1999-2001  Paul Davis
6  *
7  *   This program is free software; you can redistribute it and/or modify
8  *   it under the terms of the GNU General Public License as published by
9  *   the Free Software Foundation; either version 2 of the License, or
10  *   (at your option) any later version.
11  *
12  *   This program is distributed in the hope that it will be useful,
13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  *   GNU General Public License for more details.
16  *
17  *   You should have received a copy of the GNU General Public License
18  *   along with this program; if not, write to the Free Software
19  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
20  *
21  */
22 
23 #include <sound/driver.h>
24 #include <linux/delay.h>
25 #include <linux/init.h>
26 #include <linux/interrupt.h>
27 #include <linux/pci.h>
28 #include <linux/slab.h>
29 #include <linux/moduleparam.h>
30 
31 #include <sound/core.h>
32 #include <sound/control.h>
33 #include <sound/pcm.h>
34 #include <sound/info.h>
35 #include <sound/asoundef.h>
36 #include <sound/initval.h>
37 
38 #include <asm/current.h>
39 #include <asm/io.h>
40 
41 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
42 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
43 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable this card */
44 static int precise_ptr[SNDRV_CARDS];			/* Enable precise pointer */
45 
46 module_param_array(index, int, NULL, 0444);
47 MODULE_PARM_DESC(index, "Index value for RME Digi9652 (Hammerfall) soundcard.");
48 module_param_array(id, charp, NULL, 0444);
49 MODULE_PARM_DESC(id, "ID string for RME Digi9652 (Hammerfall) soundcard.");
50 module_param_array(enable, bool, NULL, 0444);
51 MODULE_PARM_DESC(enable, "Enable/disable specific RME96{52,36} soundcards.");
52 module_param_array(precise_ptr, bool, NULL, 0444);
53 MODULE_PARM_DESC(precise_ptr, "Enable precise pointer (doesn't work reliably).");
54 MODULE_AUTHOR("Paul Davis <pbd@op.net>, Winfried Ritsch");
55 MODULE_DESCRIPTION("RME Digi9652/Digi9636");
56 MODULE_LICENSE("GPL");
57 MODULE_SUPPORTED_DEVICE("{{RME,Hammerfall},"
58 		"{RME,Hammerfall-Light}}");
59 
60 /* The Hammerfall has two sets of 24 ADAT + 2 S/PDIF channels, one for
61    capture, one for playback. Both the ADAT and S/PDIF channels appear
62    to the host CPU in the same block of memory. There is no functional
63    difference between them in terms of access.
64 
65    The Hammerfall Light is identical to the Hammerfall, except that it
66    has 2 sets 18 channels (16 ADAT + 2 S/PDIF) for capture and playback.
67 */
68 
69 #define RME9652_NCHANNELS       26
70 #define RME9636_NCHANNELS       18
71 
72 /* Preferred sync source choices - used by "sync_pref" control switch */
73 
74 #define RME9652_SYNC_FROM_SPDIF 0
75 #define RME9652_SYNC_FROM_ADAT1 1
76 #define RME9652_SYNC_FROM_ADAT2 2
77 #define RME9652_SYNC_FROM_ADAT3 3
78 
79 /* Possible sources of S/PDIF input */
80 
81 #define RME9652_SPDIFIN_OPTICAL 0	/* optical (ADAT1) */
82 #define RME9652_SPDIFIN_COAXIAL 1	/* coaxial (RCA) */
83 #define RME9652_SPDIFIN_INTERN  2	/* internal (CDROM) */
84 
85 /* ------------- Status-Register bits --------------------- */
86 
87 #define RME9652_IRQ	   (1<<0)	/* IRQ is High if not reset by irq_clear */
88 #define RME9652_lock_2	   (1<<1)	/* ADAT 3-PLL: 1=locked, 0=unlocked */
89 #define RME9652_lock_1	   (1<<2)	/* ADAT 2-PLL: 1=locked, 0=unlocked */
90 #define RME9652_lock_0	   (1<<3)	/* ADAT 1-PLL: 1=locked, 0=unlocked */
91 #define RME9652_fs48	   (1<<4)	/* sample rate is 0=44.1/88.2,1=48/96 Khz */
92 #define RME9652_wsel_rd	   (1<<5)	/* if Word-Clock is used and valid then 1 */
93                                         /* bits 6-15 encode h/w buffer pointer position */
94 #define RME9652_sync_2	   (1<<16)	/* if ADAT-IN 3 in sync to system clock */
95 #define RME9652_sync_1	   (1<<17)	/* if ADAT-IN 2 in sync to system clock */
96 #define RME9652_sync_0	   (1<<18)	/* if ADAT-IN 1 in sync to system clock */
97 #define RME9652_DS_rd	   (1<<19)	/* 1=Double Speed Mode, 0=Normal Speed */
98 #define RME9652_tc_busy	   (1<<20)	/* 1=time-code copy in progress (960ms) */
99 #define RME9652_tc_out	   (1<<21)	/* time-code out bit */
100 #define RME9652_F_0	   (1<<22)	/* 000=64kHz, 100=88.2kHz, 011=96kHz  */
101 #define RME9652_F_1	   (1<<23)	/* 111=32kHz, 110=44.1kHz, 101=48kHz, */
102 #define RME9652_F_2	   (1<<24)	/* external Crystal Chip if ERF=1 */
103 #define RME9652_ERF	   (1<<25)	/* Error-Flag of SDPIF Receiver (1=No Lock) */
104 #define RME9652_buffer_id  (1<<26)	/* toggles by each interrupt on rec/play */
105 #define RME9652_tc_valid   (1<<27)	/* 1 = a signal is detected on time-code input */
106 #define RME9652_SPDIF_READ (1<<28)      /* byte available from Rev 1.5+ S/PDIF interface */
107 
108 #define RME9652_sync	  (RME9652_sync_0|RME9652_sync_1|RME9652_sync_2)
109 #define RME9652_lock	  (RME9652_lock_0|RME9652_lock_1|RME9652_lock_2)
110 #define RME9652_F	  (RME9652_F_0|RME9652_F_1|RME9652_F_2)
111 #define rme9652_decode_spdif_rate(x) ((x)>>22)
112 
113 /* Bit 6..15 : h/w buffer pointer */
114 
115 #define RME9652_buf_pos	  0x000FFC0
116 
117 /* Bits 31,30,29 are bits 5,4,3 of h/w pointer position on later
118    Rev G EEPROMS and Rev 1.5 cards or later.
119 */
120 
121 #define RME9652_REV15_buf_pos(x) ((((x)&0xE0000000)>>26)|((x)&RME9652_buf_pos))
122 
123 /* amount of io space we remap for register access. i'm not sure we
124    even need this much, but 1K is nice round number :)
125 */
126 
127 #define RME9652_IO_EXTENT     1024
128 
129 #define RME9652_init_buffer       0
130 #define RME9652_play_buffer       32	/* holds ptr to 26x64kBit host RAM */
131 #define RME9652_rec_buffer        36	/* holds ptr to 26x64kBit host RAM */
132 #define RME9652_control_register  64
133 #define RME9652_irq_clear         96
134 #define RME9652_time_code         100	/* useful if used with alesis adat */
135 #define RME9652_thru_base         128	/* 132...228 Thru for 26 channels */
136 
137 /* Read-only registers */
138 
139 /* Writing to any of the register locations writes to the status
140    register. We'll use the first location as our point of access.
141 */
142 
143 #define RME9652_status_register    0
144 
145 /* --------- Control-Register Bits ---------------- */
146 
147 
148 #define RME9652_start_bit	   (1<<0)	/* start record/play */
149                                                 /* bits 1-3 encode buffersize/latency */
150 #define RME9652_Master		   (1<<4)	/* Clock Mode Master=1,Slave/Auto=0 */
151 #define RME9652_IE		   (1<<5)	/* Interupt Enable */
152 #define RME9652_freq		   (1<<6)       /* samplerate 0=44.1/88.2, 1=48/96 kHz */
153 #define RME9652_freq1		   (1<<7)       /* if 0, 32kHz, else always 1 */
154 #define RME9652_DS                 (1<<8)	/* Doule Speed 0=44.1/48, 1=88.2/96 Khz */
155 #define RME9652_PRO		   (1<<9)	/* S/PDIF out: 0=consumer, 1=professional */
156 #define RME9652_EMP		   (1<<10)	/*  Emphasis 0=None, 1=ON */
157 #define RME9652_Dolby		   (1<<11)	/*  Non-audio bit 1=set, 0=unset */
158 #define RME9652_opt_out	           (1<<12)	/* Use 1st optical OUT as SPDIF: 1=yes,0=no */
159 #define RME9652_wsel		   (1<<13)	/* use Wordclock as sync (overwrites master) */
160 #define RME9652_inp_0		   (1<<14)	/* SPDIF-IN: 00=optical (ADAT1),     */
161 #define RME9652_inp_1		   (1<<15)	/* 01=koaxial (Cinch), 10=Internal CDROM */
162 #define RME9652_SyncPref_ADAT2	   (1<<16)
163 #define RME9652_SyncPref_ADAT3	   (1<<17)
164 #define RME9652_SPDIF_RESET        (1<<18)      /* Rev 1.5+: h/w S/PDIF receiver */
165 #define RME9652_SPDIF_SELECT       (1<<19)
166 #define RME9652_SPDIF_CLOCK        (1<<20)
167 #define RME9652_SPDIF_WRITE        (1<<21)
168 #define RME9652_ADAT1_INTERNAL     (1<<22)      /* Rev 1.5+: if set, internal CD connector carries ADAT */
169 
170 /* buffersize = 512Bytes * 2^n, where n is made from Bit2 ... Bit0 */
171 
172 #define RME9652_latency            0x0e
173 #define rme9652_encode_latency(x)  (((x)&0x7)<<1)
174 #define rme9652_decode_latency(x)  (((x)>>1)&0x7)
175 #define rme9652_running_double_speed(s) ((s)->control_register & RME9652_DS)
176 #define RME9652_inp                (RME9652_inp_0|RME9652_inp_1)
177 #define rme9652_encode_spdif_in(x) (((x)&0x3)<<14)
178 #define rme9652_decode_spdif_in(x) (((x)>>14)&0x3)
179 
180 #define RME9652_SyncPref_Mask      (RME9652_SyncPref_ADAT2|RME9652_SyncPref_ADAT3)
181 #define RME9652_SyncPref_ADAT1	   0
182 #define RME9652_SyncPref_SPDIF	   (RME9652_SyncPref_ADAT2|RME9652_SyncPref_ADAT3)
183 
184 /* the size of a substream (1 mono data stream) */
185 
186 #define RME9652_CHANNEL_BUFFER_SAMPLES  (16*1024)
187 #define RME9652_CHANNEL_BUFFER_BYTES    (4*RME9652_CHANNEL_BUFFER_SAMPLES)
188 
189 /* the size of the area we need to allocate for DMA transfers. the
190    size is the same regardless of the number of channels - the
191    9636 still uses the same memory area.
192 
193    Note that we allocate 1 more channel than is apparently needed
194    because the h/w seems to write 1 byte beyond the end of the last
195    page. Sigh.
196 */
197 
198 #define RME9652_DMA_AREA_BYTES ((RME9652_NCHANNELS+1) * RME9652_CHANNEL_BUFFER_BYTES)
199 #define RME9652_DMA_AREA_KILOBYTES (RME9652_DMA_AREA_BYTES/1024)
200 
201 struct snd_rme9652 {
202 	int dev;
203 
204 	spinlock_t lock;
205 	int irq;
206 	unsigned long port;
207 	void __iomem *iobase;
208 
209 	int precise_ptr;
210 
211 	u32 control_register;	/* cached value */
212 	u32 thru_bits;		/* thru 1=on, 0=off channel 1=Bit1... channel 26= Bit26 */
213 
214 	u32 creg_spdif;
215 	u32 creg_spdif_stream;
216 
217 	char *card_name;		/* hammerfall or hammerfall light names */
218 
219         size_t hw_offsetmask;     	/* &-with status register to get real hw_offset */
220 	size_t prev_hw_offset;		/* previous hw offset */
221 	size_t max_jitter;		/* maximum jitter in frames for
222 					   hw pointer */
223 	size_t period_bytes;		/* guess what this is */
224 
225 	unsigned char ds_channels;
226 	unsigned char ss_channels;	/* different for hammerfall/hammerfall-light */
227 
228 	struct snd_dma_buffer playback_dma_buf;
229 	struct snd_dma_buffer capture_dma_buf;
230 
231 	unsigned char *capture_buffer;	/* suitably aligned address */
232 	unsigned char *playback_buffer;	/* suitably aligned address */
233 
234 	pid_t capture_pid;
235 	pid_t playback_pid;
236 
237 	struct snd_pcm_substream *capture_substream;
238 	struct snd_pcm_substream *playback_substream;
239 	int running;
240 
241         int passthru;                   /* non-zero if doing pass-thru */
242         int hw_rev;                     /* h/w rev * 10 (i.e. 1.5 has hw_rev = 15) */
243 
244 	int last_spdif_sample_rate;	/* so that we can catch externally ... */
245 	int last_adat_sample_rate;	/* ... induced rate changes            */
246 
247         char *channel_map;
248 
249 	struct snd_card *card;
250 	struct snd_pcm *pcm;
251 	struct pci_dev *pci;
252 	struct snd_kcontrol *spdif_ctl;
253 
254 };
255 
256 /* These tables map the ALSA channels 1..N to the channels that we
257    need to use in order to find the relevant channel buffer. RME
258    refer to this kind of mapping as between "the ADAT channel and
259    the DMA channel." We index it using the logical audio channel,
260    and the value is the DMA channel (i.e. channel buffer number)
261    where the data for that channel can be read/written from/to.
262 */
263 
264 static char channel_map_9652_ss[26] = {
265 	0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
266 	18, 19, 20, 21, 22, 23, 24, 25
267 };
268 
269 static char channel_map_9636_ss[26] = {
270 	0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
271 	/* channels 16 and 17 are S/PDIF */
272 	24, 25,
273 	/* channels 18-25 don't exist */
274 	-1, -1, -1, -1, -1, -1, -1, -1
275 };
276 
277 static char channel_map_9652_ds[26] = {
278 	/* ADAT channels are remapped */
279 	1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23,
280 	/* channels 12 and 13 are S/PDIF */
281 	24, 25,
282 	/* others don't exist */
283 	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
284 };
285 
286 static char channel_map_9636_ds[26] = {
287 	/* ADAT channels are remapped */
288 	1, 3, 5, 7, 9, 11, 13, 15,
289 	/* channels 8 and 9 are S/PDIF */
290 	24, 25
291 	/* others don't exist */
292 	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
293 };
294 
295 static int snd_hammerfall_get_buffer(struct pci_dev *pci, struct snd_dma_buffer *dmab, size_t size)
296 {
297 	dmab->dev.type = SNDRV_DMA_TYPE_DEV;
298 	dmab->dev.dev = snd_dma_pci_data(pci);
299 	if (snd_dma_get_reserved_buf(dmab, snd_dma_pci_buf_id(pci))) {
300 		if (dmab->bytes >= size)
301 			return 0;
302 	}
303 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
304 				size, dmab) < 0)
305 		return -ENOMEM;
306 	return 0;
307 }
308 
309 static void snd_hammerfall_free_buffer(struct snd_dma_buffer *dmab, struct pci_dev *pci)
310 {
311 	if (dmab->area) {
312 		dmab->dev.dev = NULL; /* make it anonymous */
313 		snd_dma_reserve_buf(dmab, snd_dma_pci_buf_id(pci));
314 	}
315 }
316 
317 
318 static struct pci_device_id snd_rme9652_ids[] = {
319 	{
320 		.vendor	   = 0x10ee,
321 		.device	   = 0x3fc4,
322 		.subvendor = PCI_ANY_ID,
323 		.subdevice = PCI_ANY_ID,
324 	},	/* RME Digi9652 */
325 	{ 0, },
326 };
327 
328 MODULE_DEVICE_TABLE(pci, snd_rme9652_ids);
329 
330 static inline void rme9652_write(struct snd_rme9652 *rme9652, int reg, int val)
331 {
332 	writel(val, rme9652->iobase + reg);
333 }
334 
335 static inline unsigned int rme9652_read(struct snd_rme9652 *rme9652, int reg)
336 {
337 	return readl(rme9652->iobase + reg);
338 }
339 
340 static inline int snd_rme9652_use_is_exclusive(struct snd_rme9652 *rme9652)
341 {
342 	unsigned long flags;
343 	int ret = 1;
344 
345 	spin_lock_irqsave(&rme9652->lock, flags);
346 	if ((rme9652->playback_pid != rme9652->capture_pid) &&
347 	    (rme9652->playback_pid >= 0) && (rme9652->capture_pid >= 0)) {
348 		ret = 0;
349 	}
350 	spin_unlock_irqrestore(&rme9652->lock, flags);
351 	return ret;
352 }
353 
354 static inline int rme9652_adat_sample_rate(struct snd_rme9652 *rme9652)
355 {
356 	if (rme9652_running_double_speed(rme9652)) {
357 		return (rme9652_read(rme9652, RME9652_status_register) &
358 			RME9652_fs48) ? 96000 : 88200;
359 	} else {
360 		return (rme9652_read(rme9652, RME9652_status_register) &
361 			RME9652_fs48) ? 48000 : 44100;
362 	}
363 }
364 
365 static inline void rme9652_compute_period_size(struct snd_rme9652 *rme9652)
366 {
367 	unsigned int i;
368 
369 	i = rme9652->control_register & RME9652_latency;
370 	rme9652->period_bytes = 1 << ((rme9652_decode_latency(i) + 8));
371 	rme9652->hw_offsetmask =
372 		(rme9652->period_bytes * 2 - 1) & RME9652_buf_pos;
373 	rme9652->max_jitter = 80;
374 }
375 
376 static snd_pcm_uframes_t rme9652_hw_pointer(struct snd_rme9652 *rme9652)
377 {
378 	int status;
379 	unsigned int offset, frag;
380 	snd_pcm_uframes_t period_size = rme9652->period_bytes / 4;
381 	snd_pcm_sframes_t delta;
382 
383 	status = rme9652_read(rme9652, RME9652_status_register);
384 	if (!rme9652->precise_ptr)
385 		return (status & RME9652_buffer_id) ? period_size : 0;
386 	offset = status & RME9652_buf_pos;
387 
388 	/* The hardware may give a backward movement for up to 80 frames
389            Martin Kirst <martin.kirst@freenet.de> knows the details.
390 	*/
391 
392 	delta = rme9652->prev_hw_offset - offset;
393 	delta &= 0xffff;
394 	if (delta <= (snd_pcm_sframes_t)rme9652->max_jitter * 4)
395 		offset = rme9652->prev_hw_offset;
396 	else
397 		rme9652->prev_hw_offset = offset;
398 	offset &= rme9652->hw_offsetmask;
399 	offset /= 4;
400 	frag = status & RME9652_buffer_id;
401 
402 	if (offset < period_size) {
403 		if (offset > rme9652->max_jitter) {
404 			if (frag)
405 				printk(KERN_ERR "Unexpected hw_pointer position (bufid == 0): status: %x offset: %d\n", status, offset);
406 		} else if (!frag)
407 			return 0;
408 		offset -= rme9652->max_jitter;
409 		if (offset < 0)
410 			offset += period_size * 2;
411 	} else {
412 		if (offset > period_size + rme9652->max_jitter) {
413 			if (!frag)
414 				printk(KERN_ERR "Unexpected hw_pointer position (bufid == 1): status: %x offset: %d\n", status, offset);
415 		} else if (frag)
416 			return period_size;
417 		offset -= rme9652->max_jitter;
418 	}
419 
420 	return offset;
421 }
422 
423 static inline void rme9652_reset_hw_pointer(struct snd_rme9652 *rme9652)
424 {
425 	int i;
426 
427 	/* reset the FIFO pointer to zero. We do this by writing to 8
428 	   registers, each of which is a 32bit wide register, and set
429 	   them all to zero. Note that s->iobase is a pointer to
430 	   int32, not pointer to char.
431 	*/
432 
433 	for (i = 0; i < 8; i++) {
434 		rme9652_write(rme9652, i * 4, 0);
435 		udelay(10);
436 	}
437 	rme9652->prev_hw_offset = 0;
438 }
439 
440 static inline void rme9652_start(struct snd_rme9652 *s)
441 {
442 	s->control_register |= (RME9652_IE | RME9652_start_bit);
443 	rme9652_write(s, RME9652_control_register, s->control_register);
444 }
445 
446 static inline void rme9652_stop(struct snd_rme9652 *s)
447 {
448 	s->control_register &= ~(RME9652_start_bit | RME9652_IE);
449 	rme9652_write(s, RME9652_control_register, s->control_register);
450 }
451 
452 static int rme9652_set_interrupt_interval(struct snd_rme9652 *s,
453 					  unsigned int frames)
454 {
455 	int restart = 0;
456 	int n;
457 
458 	spin_lock_irq(&s->lock);
459 
460 	if ((restart = s->running)) {
461 		rme9652_stop(s);
462 	}
463 
464 	frames >>= 7;
465 	n = 0;
466 	while (frames) {
467 		n++;
468 		frames >>= 1;
469 	}
470 
471 	s->control_register &= ~RME9652_latency;
472 	s->control_register |= rme9652_encode_latency(n);
473 
474 	rme9652_write(s, RME9652_control_register, s->control_register);
475 
476 	rme9652_compute_period_size(s);
477 
478 	if (restart)
479 		rme9652_start(s);
480 
481 	spin_unlock_irq(&s->lock);
482 
483 	return 0;
484 }
485 
486 static int rme9652_set_rate(struct snd_rme9652 *rme9652, int rate)
487 {
488 	int restart;
489 	int reject_if_open = 0;
490 	int xrate;
491 
492 	if (!snd_rme9652_use_is_exclusive (rme9652)) {
493 		return -EBUSY;
494 	}
495 
496 	/* Changing from a "single speed" to a "double speed" rate is
497 	   not allowed if any substreams are open. This is because
498 	   such a change causes a shift in the location of
499 	   the DMA buffers and a reduction in the number of available
500 	   buffers.
501 
502 	   Note that a similar but essentially insoluble problem
503 	   exists for externally-driven rate changes. All we can do
504 	   is to flag rate changes in the read/write routines.
505 	 */
506 
507 	spin_lock_irq(&rme9652->lock);
508 	xrate = rme9652_adat_sample_rate(rme9652);
509 
510 	switch (rate) {
511 	case 44100:
512 		if (xrate > 48000) {
513 			reject_if_open = 1;
514 		}
515 		rate = 0;
516 		break;
517 	case 48000:
518 		if (xrate > 48000) {
519 			reject_if_open = 1;
520 		}
521 		rate = RME9652_freq;
522 		break;
523 	case 88200:
524 		if (xrate < 48000) {
525 			reject_if_open = 1;
526 		}
527 		rate = RME9652_DS;
528 		break;
529 	case 96000:
530 		if (xrate < 48000) {
531 			reject_if_open = 1;
532 		}
533 		rate = RME9652_DS | RME9652_freq;
534 		break;
535 	default:
536 		spin_unlock_irq(&rme9652->lock);
537 		return -EINVAL;
538 	}
539 
540 	if (reject_if_open && (rme9652->capture_pid >= 0 || rme9652->playback_pid >= 0)) {
541 		spin_unlock_irq(&rme9652->lock);
542 		return -EBUSY;
543 	}
544 
545 	if ((restart = rme9652->running)) {
546 		rme9652_stop(rme9652);
547 	}
548 	rme9652->control_register &= ~(RME9652_freq | RME9652_DS);
549 	rme9652->control_register |= rate;
550 	rme9652_write(rme9652, RME9652_control_register, rme9652->control_register);
551 
552 	if (restart) {
553 		rme9652_start(rme9652);
554 	}
555 
556 	if (rate & RME9652_DS) {
557 		if (rme9652->ss_channels == RME9652_NCHANNELS) {
558 			rme9652->channel_map = channel_map_9652_ds;
559 		} else {
560 			rme9652->channel_map = channel_map_9636_ds;
561 		}
562 	} else {
563 		if (rme9652->ss_channels == RME9652_NCHANNELS) {
564 			rme9652->channel_map = channel_map_9652_ss;
565 		} else {
566 			rme9652->channel_map = channel_map_9636_ss;
567 		}
568 	}
569 
570 	spin_unlock_irq(&rme9652->lock);
571 	return 0;
572 }
573 
574 static void rme9652_set_thru(struct snd_rme9652 *rme9652, int channel, int enable)
575 {
576 	int i;
577 
578 	rme9652->passthru = 0;
579 
580 	if (channel < 0) {
581 
582 		/* set thru for all channels */
583 
584 		if (enable) {
585 			for (i = 0; i < RME9652_NCHANNELS; i++) {
586 				rme9652->thru_bits |= (1 << i);
587 				rme9652_write(rme9652, RME9652_thru_base + i * 4, 1);
588 			}
589 		} else {
590 			for (i = 0; i < RME9652_NCHANNELS; i++) {
591 				rme9652->thru_bits &= ~(1 << i);
592 				rme9652_write(rme9652, RME9652_thru_base + i * 4, 0);
593 			}
594 		}
595 
596 	} else {
597 		int mapped_channel;
598 
599 		snd_assert(channel == RME9652_NCHANNELS, return);
600 
601 		mapped_channel = rme9652->channel_map[channel];
602 
603 		if (enable) {
604 			rme9652->thru_bits |= (1 << mapped_channel);
605 		} else {
606 			rme9652->thru_bits &= ~(1 << mapped_channel);
607 		}
608 
609 		rme9652_write(rme9652,
610 			       RME9652_thru_base + mapped_channel * 4,
611 			       enable ? 1 : 0);
612 	}
613 }
614 
615 static int rme9652_set_passthru(struct snd_rme9652 *rme9652, int onoff)
616 {
617 	if (onoff) {
618 		rme9652_set_thru(rme9652, -1, 1);
619 
620 		/* we don't want interrupts, so do a
621 		   custom version of rme9652_start().
622 		*/
623 
624 		rme9652->control_register =
625 			RME9652_inp_0 |
626 			rme9652_encode_latency(7) |
627 			RME9652_start_bit;
628 
629 		rme9652_reset_hw_pointer(rme9652);
630 
631 		rme9652_write(rme9652, RME9652_control_register,
632 			      rme9652->control_register);
633 		rme9652->passthru = 1;
634 	} else {
635 		rme9652_set_thru(rme9652, -1, 0);
636 		rme9652_stop(rme9652);
637 		rme9652->passthru = 0;
638 	}
639 
640 	return 0;
641 }
642 
643 static void rme9652_spdif_set_bit (struct snd_rme9652 *rme9652, int mask, int onoff)
644 {
645 	if (onoff)
646 		rme9652->control_register |= mask;
647 	else
648 		rme9652->control_register &= ~mask;
649 
650 	rme9652_write(rme9652, RME9652_control_register, rme9652->control_register);
651 }
652 
653 static void rme9652_spdif_write_byte (struct snd_rme9652 *rme9652, const int val)
654 {
655 	long mask;
656 	long i;
657 
658 	for (i = 0, mask = 0x80; i < 8; i++, mask >>= 1) {
659 		if (val & mask)
660 			rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_WRITE, 1);
661 		else
662 			rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_WRITE, 0);
663 
664 		rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_CLOCK, 1);
665 		rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_CLOCK, 0);
666 	}
667 }
668 
669 static int rme9652_spdif_read_byte (struct snd_rme9652 *rme9652)
670 {
671 	long mask;
672 	long val;
673 	long i;
674 
675 	val = 0;
676 
677 	for (i = 0, mask = 0x80;  i < 8; i++, mask >>= 1) {
678 		rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_CLOCK, 1);
679 		if (rme9652_read (rme9652, RME9652_status_register) & RME9652_SPDIF_READ)
680 			val |= mask;
681 		rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_CLOCK, 0);
682 	}
683 
684 	return val;
685 }
686 
687 static void rme9652_write_spdif_codec (struct snd_rme9652 *rme9652, const int address, const int data)
688 {
689 	rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_SELECT, 1);
690 	rme9652_spdif_write_byte (rme9652, 0x20);
691 	rme9652_spdif_write_byte (rme9652, address);
692 	rme9652_spdif_write_byte (rme9652, data);
693 	rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_SELECT, 0);
694 }
695 
696 
697 static int rme9652_spdif_read_codec (struct snd_rme9652 *rme9652, const int address)
698 {
699 	int ret;
700 
701 	rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_SELECT, 1);
702 	rme9652_spdif_write_byte (rme9652, 0x20);
703 	rme9652_spdif_write_byte (rme9652, address);
704 	rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_SELECT, 0);
705 	rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_SELECT, 1);
706 
707 	rme9652_spdif_write_byte (rme9652, 0x21);
708 	ret = rme9652_spdif_read_byte (rme9652);
709 	rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_SELECT, 0);
710 
711 	return ret;
712 }
713 
714 static void rme9652_initialize_spdif_receiver (struct snd_rme9652 *rme9652)
715 {
716 	/* XXX what unsets this ? */
717 
718 	rme9652->control_register |= RME9652_SPDIF_RESET;
719 
720 	rme9652_write_spdif_codec (rme9652, 4, 0x40);
721 	rme9652_write_spdif_codec (rme9652, 17, 0x13);
722 	rme9652_write_spdif_codec (rme9652, 6, 0x02);
723 }
724 
725 static inline int rme9652_spdif_sample_rate(struct snd_rme9652 *s)
726 {
727 	unsigned int rate_bits;
728 
729 	if (rme9652_read(s, RME9652_status_register) & RME9652_ERF) {
730 		return -1;	/* error condition */
731 	}
732 
733 	if (s->hw_rev == 15) {
734 
735 		int x, y, ret;
736 
737 		x = rme9652_spdif_read_codec (s, 30);
738 
739 		if (x != 0)
740 			y = 48000 * 64 / x;
741 		else
742 			y = 0;
743 
744 		if      (y > 30400 && y < 33600)  ret = 32000;
745 		else if (y > 41900 && y < 46000)  ret = 44100;
746 		else if (y > 46000 && y < 50400)  ret = 48000;
747 		else if (y > 60800 && y < 67200)  ret = 64000;
748 		else if (y > 83700 && y < 92000)  ret = 88200;
749 		else if (y > 92000 && y < 100000) ret = 96000;
750 		else                              ret = 0;
751 		return ret;
752 	}
753 
754 	rate_bits = rme9652_read(s, RME9652_status_register) & RME9652_F;
755 
756 	switch (rme9652_decode_spdif_rate(rate_bits)) {
757 	case 0x7:
758 		return 32000;
759 		break;
760 
761 	case 0x6:
762 		return 44100;
763 		break;
764 
765 	case 0x5:
766 		return 48000;
767 		break;
768 
769 	case 0x4:
770 		return 88200;
771 		break;
772 
773 	case 0x3:
774 		return 96000;
775 		break;
776 
777 	case 0x0:
778 		return 64000;
779 		break;
780 
781 	default:
782 		snd_printk(KERN_ERR "%s: unknown S/PDIF input rate (bits = 0x%x)\n",
783 			   s->card_name, rate_bits);
784 		return 0;
785 		break;
786 	}
787 }
788 
789 /*-----------------------------------------------------------------------------
790   Control Interface
791   ----------------------------------------------------------------------------*/
792 
793 static u32 snd_rme9652_convert_from_aes(struct snd_aes_iec958 *aes)
794 {
795 	u32 val = 0;
796 	val |= (aes->status[0] & IEC958_AES0_PROFESSIONAL) ? RME9652_PRO : 0;
797 	val |= (aes->status[0] & IEC958_AES0_NONAUDIO) ? RME9652_Dolby : 0;
798 	if (val & RME9652_PRO)
799 		val |= (aes->status[0] & IEC958_AES0_PRO_EMPHASIS_5015) ? RME9652_EMP : 0;
800 	else
801 		val |= (aes->status[0] & IEC958_AES0_CON_EMPHASIS_5015) ? RME9652_EMP : 0;
802 	return val;
803 }
804 
805 static void snd_rme9652_convert_to_aes(struct snd_aes_iec958 *aes, u32 val)
806 {
807 	aes->status[0] = ((val & RME9652_PRO) ? IEC958_AES0_PROFESSIONAL : 0) |
808 			 ((val & RME9652_Dolby) ? IEC958_AES0_NONAUDIO : 0);
809 	if (val & RME9652_PRO)
810 		aes->status[0] |= (val & RME9652_EMP) ? IEC958_AES0_PRO_EMPHASIS_5015 : 0;
811 	else
812 		aes->status[0] |= (val & RME9652_EMP) ? IEC958_AES0_CON_EMPHASIS_5015 : 0;
813 }
814 
815 static int snd_rme9652_control_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
816 {
817 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
818 	uinfo->count = 1;
819 	return 0;
820 }
821 
822 static int snd_rme9652_control_spdif_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
823 {
824 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
825 
826 	snd_rme9652_convert_to_aes(&ucontrol->value.iec958, rme9652->creg_spdif);
827 	return 0;
828 }
829 
830 static int snd_rme9652_control_spdif_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
831 {
832 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
833 	int change;
834 	u32 val;
835 
836 	val = snd_rme9652_convert_from_aes(&ucontrol->value.iec958);
837 	spin_lock_irq(&rme9652->lock);
838 	change = val != rme9652->creg_spdif;
839 	rme9652->creg_spdif = val;
840 	spin_unlock_irq(&rme9652->lock);
841 	return change;
842 }
843 
844 static int snd_rme9652_control_spdif_stream_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
845 {
846 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
847 	uinfo->count = 1;
848 	return 0;
849 }
850 
851 static int snd_rme9652_control_spdif_stream_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
852 {
853 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
854 
855 	snd_rme9652_convert_to_aes(&ucontrol->value.iec958, rme9652->creg_spdif_stream);
856 	return 0;
857 }
858 
859 static int snd_rme9652_control_spdif_stream_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
860 {
861 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
862 	int change;
863 	u32 val;
864 
865 	val = snd_rme9652_convert_from_aes(&ucontrol->value.iec958);
866 	spin_lock_irq(&rme9652->lock);
867 	change = val != rme9652->creg_spdif_stream;
868 	rme9652->creg_spdif_stream = val;
869 	rme9652->control_register &= ~(RME9652_PRO | RME9652_Dolby | RME9652_EMP);
870 	rme9652_write(rme9652, RME9652_control_register, rme9652->control_register |= val);
871 	spin_unlock_irq(&rme9652->lock);
872 	return change;
873 }
874 
875 static int snd_rme9652_control_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
876 {
877 	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
878 	uinfo->count = 1;
879 	return 0;
880 }
881 
882 static int snd_rme9652_control_spdif_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
883 {
884 	ucontrol->value.iec958.status[0] = kcontrol->private_value;
885 	return 0;
886 }
887 
888 #define RME9652_ADAT1_IN(xname, xindex) \
889 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
890   .info = snd_rme9652_info_adat1_in, \
891   .get = snd_rme9652_get_adat1_in, \
892   .put = snd_rme9652_put_adat1_in }
893 
894 static unsigned int rme9652_adat1_in(struct snd_rme9652 *rme9652)
895 {
896 	if (rme9652->control_register & RME9652_ADAT1_INTERNAL)
897 		return 1;
898 	return 0;
899 }
900 
901 static int rme9652_set_adat1_input(struct snd_rme9652 *rme9652, int internal)
902 {
903 	int restart = 0;
904 
905 	if (internal) {
906 		rme9652->control_register |= RME9652_ADAT1_INTERNAL;
907 	} else {
908 		rme9652->control_register &= ~RME9652_ADAT1_INTERNAL;
909 	}
910 
911 	/* XXX do we actually need to stop the card when we do this ? */
912 
913 	if ((restart = rme9652->running)) {
914 		rme9652_stop(rme9652);
915 	}
916 
917 	rme9652_write(rme9652, RME9652_control_register, rme9652->control_register);
918 
919 	if (restart) {
920 		rme9652_start(rme9652);
921 	}
922 
923 	return 0;
924 }
925 
926 static int snd_rme9652_info_adat1_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
927 {
928 	static char *texts[2] = {"ADAT1", "Internal"};
929 
930 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
931 	uinfo->count = 1;
932 	uinfo->value.enumerated.items = 2;
933 	if (uinfo->value.enumerated.item > 1)
934 		uinfo->value.enumerated.item = 1;
935 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
936 	return 0;
937 }
938 
939 static int snd_rme9652_get_adat1_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
940 {
941 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
942 
943 	spin_lock_irq(&rme9652->lock);
944 	ucontrol->value.enumerated.item[0] = rme9652_adat1_in(rme9652);
945 	spin_unlock_irq(&rme9652->lock);
946 	return 0;
947 }
948 
949 static int snd_rme9652_put_adat1_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
950 {
951 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
952 	int change;
953 	unsigned int val;
954 
955 	if (!snd_rme9652_use_is_exclusive(rme9652))
956 		return -EBUSY;
957 	val = ucontrol->value.enumerated.item[0] % 2;
958 	spin_lock_irq(&rme9652->lock);
959 	change = val != rme9652_adat1_in(rme9652);
960 	if (change)
961 		rme9652_set_adat1_input(rme9652, val);
962 	spin_unlock_irq(&rme9652->lock);
963 	return change;
964 }
965 
966 #define RME9652_SPDIF_IN(xname, xindex) \
967 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
968   .info = snd_rme9652_info_spdif_in, \
969   .get = snd_rme9652_get_spdif_in, .put = snd_rme9652_put_spdif_in }
970 
971 static unsigned int rme9652_spdif_in(struct snd_rme9652 *rme9652)
972 {
973 	return rme9652_decode_spdif_in(rme9652->control_register &
974 				       RME9652_inp);
975 }
976 
977 static int rme9652_set_spdif_input(struct snd_rme9652 *rme9652, int in)
978 {
979 	int restart = 0;
980 
981 	rme9652->control_register &= ~RME9652_inp;
982 	rme9652->control_register |= rme9652_encode_spdif_in(in);
983 
984 	if ((restart = rme9652->running)) {
985 		rme9652_stop(rme9652);
986 	}
987 
988 	rme9652_write(rme9652, RME9652_control_register, rme9652->control_register);
989 
990 	if (restart) {
991 		rme9652_start(rme9652);
992 	}
993 
994 	return 0;
995 }
996 
997 static int snd_rme9652_info_spdif_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
998 {
999 	static char *texts[3] = {"ADAT1", "Coaxial", "Internal"};
1000 
1001 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1002 	uinfo->count = 1;
1003 	uinfo->value.enumerated.items = 3;
1004 	if (uinfo->value.enumerated.item > 2)
1005 		uinfo->value.enumerated.item = 2;
1006 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1007 	return 0;
1008 }
1009 
1010 static int snd_rme9652_get_spdif_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1011 {
1012 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1013 
1014 	spin_lock_irq(&rme9652->lock);
1015 	ucontrol->value.enumerated.item[0] = rme9652_spdif_in(rme9652);
1016 	spin_unlock_irq(&rme9652->lock);
1017 	return 0;
1018 }
1019 
1020 static int snd_rme9652_put_spdif_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1021 {
1022 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1023 	int change;
1024 	unsigned int val;
1025 
1026 	if (!snd_rme9652_use_is_exclusive(rme9652))
1027 		return -EBUSY;
1028 	val = ucontrol->value.enumerated.item[0] % 3;
1029 	spin_lock_irq(&rme9652->lock);
1030 	change = val != rme9652_spdif_in(rme9652);
1031 	if (change)
1032 		rme9652_set_spdif_input(rme9652, val);
1033 	spin_unlock_irq(&rme9652->lock);
1034 	return change;
1035 }
1036 
1037 #define RME9652_SPDIF_OUT(xname, xindex) \
1038 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1039   .info = snd_rme9652_info_spdif_out, \
1040   .get = snd_rme9652_get_spdif_out, .put = snd_rme9652_put_spdif_out }
1041 
1042 static int rme9652_spdif_out(struct snd_rme9652 *rme9652)
1043 {
1044 	return (rme9652->control_register & RME9652_opt_out) ? 1 : 0;
1045 }
1046 
1047 static int rme9652_set_spdif_output(struct snd_rme9652 *rme9652, int out)
1048 {
1049 	int restart = 0;
1050 
1051 	if (out) {
1052 		rme9652->control_register |= RME9652_opt_out;
1053 	} else {
1054 		rme9652->control_register &= ~RME9652_opt_out;
1055 	}
1056 
1057 	if ((restart = rme9652->running)) {
1058 		rme9652_stop(rme9652);
1059 	}
1060 
1061 	rme9652_write(rme9652, RME9652_control_register, rme9652->control_register);
1062 
1063 	if (restart) {
1064 		rme9652_start(rme9652);
1065 	}
1066 
1067 	return 0;
1068 }
1069 
1070 static int snd_rme9652_info_spdif_out(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1071 {
1072 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1073 	uinfo->count = 1;
1074 	uinfo->value.integer.min = 0;
1075 	uinfo->value.integer.max = 1;
1076 	return 0;
1077 }
1078 
1079 static int snd_rme9652_get_spdif_out(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1080 {
1081 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1082 
1083 	spin_lock_irq(&rme9652->lock);
1084 	ucontrol->value.integer.value[0] = rme9652_spdif_out(rme9652);
1085 	spin_unlock_irq(&rme9652->lock);
1086 	return 0;
1087 }
1088 
1089 static int snd_rme9652_put_spdif_out(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1090 {
1091 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1092 	int change;
1093 	unsigned int val;
1094 
1095 	if (!snd_rme9652_use_is_exclusive(rme9652))
1096 		return -EBUSY;
1097 	val = ucontrol->value.integer.value[0] & 1;
1098 	spin_lock_irq(&rme9652->lock);
1099 	change = (int)val != rme9652_spdif_out(rme9652);
1100 	rme9652_set_spdif_output(rme9652, val);
1101 	spin_unlock_irq(&rme9652->lock);
1102 	return change;
1103 }
1104 
1105 #define RME9652_SYNC_MODE(xname, xindex) \
1106 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1107   .info = snd_rme9652_info_sync_mode, \
1108   .get = snd_rme9652_get_sync_mode, .put = snd_rme9652_put_sync_mode }
1109 
1110 static int rme9652_sync_mode(struct snd_rme9652 *rme9652)
1111 {
1112 	if (rme9652->control_register & RME9652_wsel) {
1113 		return 2;
1114 	} else if (rme9652->control_register & RME9652_Master) {
1115 		return 1;
1116 	} else {
1117 		return 0;
1118 	}
1119 }
1120 
1121 static int rme9652_set_sync_mode(struct snd_rme9652 *rme9652, int mode)
1122 {
1123 	int restart = 0;
1124 
1125 	switch (mode) {
1126 	case 0:
1127 		rme9652->control_register &=
1128 		    ~(RME9652_Master | RME9652_wsel);
1129 		break;
1130 	case 1:
1131 		rme9652->control_register =
1132 		    (rme9652->control_register & ~RME9652_wsel) | RME9652_Master;
1133 		break;
1134 	case 2:
1135 		rme9652->control_register |=
1136 		    (RME9652_Master | RME9652_wsel);
1137 		break;
1138 	}
1139 
1140 	if ((restart = rme9652->running)) {
1141 		rme9652_stop(rme9652);
1142 	}
1143 
1144 	rme9652_write(rme9652, RME9652_control_register, rme9652->control_register);
1145 
1146 	if (restart) {
1147 		rme9652_start(rme9652);
1148 	}
1149 
1150 	return 0;
1151 }
1152 
1153 static int snd_rme9652_info_sync_mode(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1154 {
1155 	static char *texts[3] = {"AutoSync", "Master", "Word Clock"};
1156 
1157 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1158 	uinfo->count = 1;
1159 	uinfo->value.enumerated.items = 3;
1160 	if (uinfo->value.enumerated.item > 2)
1161 		uinfo->value.enumerated.item = 2;
1162 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1163 	return 0;
1164 }
1165 
1166 static int snd_rme9652_get_sync_mode(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1167 {
1168 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1169 
1170 	spin_lock_irq(&rme9652->lock);
1171 	ucontrol->value.enumerated.item[0] = rme9652_sync_mode(rme9652);
1172 	spin_unlock_irq(&rme9652->lock);
1173 	return 0;
1174 }
1175 
1176 static int snd_rme9652_put_sync_mode(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1177 {
1178 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1179 	int change;
1180 	unsigned int val;
1181 
1182 	val = ucontrol->value.enumerated.item[0] % 3;
1183 	spin_lock_irq(&rme9652->lock);
1184 	change = (int)val != rme9652_sync_mode(rme9652);
1185 	rme9652_set_sync_mode(rme9652, val);
1186 	spin_unlock_irq(&rme9652->lock);
1187 	return change;
1188 }
1189 
1190 #define RME9652_SYNC_PREF(xname, xindex) \
1191 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1192   .info = snd_rme9652_info_sync_pref, \
1193   .get = snd_rme9652_get_sync_pref, .put = snd_rme9652_put_sync_pref }
1194 
1195 static int rme9652_sync_pref(struct snd_rme9652 *rme9652)
1196 {
1197 	switch (rme9652->control_register & RME9652_SyncPref_Mask) {
1198 	case RME9652_SyncPref_ADAT1:
1199 		return RME9652_SYNC_FROM_ADAT1;
1200 	case RME9652_SyncPref_ADAT2:
1201 		return RME9652_SYNC_FROM_ADAT2;
1202 	case RME9652_SyncPref_ADAT3:
1203 		return RME9652_SYNC_FROM_ADAT3;
1204 	case RME9652_SyncPref_SPDIF:
1205 		return RME9652_SYNC_FROM_SPDIF;
1206 	}
1207 	/* Not reachable */
1208 	return 0;
1209 }
1210 
1211 static int rme9652_set_sync_pref(struct snd_rme9652 *rme9652, int pref)
1212 {
1213 	int restart;
1214 
1215 	rme9652->control_register &= ~RME9652_SyncPref_Mask;
1216 	switch (pref) {
1217 	case RME9652_SYNC_FROM_ADAT1:
1218 		rme9652->control_register |= RME9652_SyncPref_ADAT1;
1219 		break;
1220 	case RME9652_SYNC_FROM_ADAT2:
1221 		rme9652->control_register |= RME9652_SyncPref_ADAT2;
1222 		break;
1223 	case RME9652_SYNC_FROM_ADAT3:
1224 		rme9652->control_register |= RME9652_SyncPref_ADAT3;
1225 		break;
1226 	case RME9652_SYNC_FROM_SPDIF:
1227 		rme9652->control_register |= RME9652_SyncPref_SPDIF;
1228 		break;
1229 	}
1230 
1231 	if ((restart = rme9652->running)) {
1232 		rme9652_stop(rme9652);
1233 	}
1234 
1235 	rme9652_write(rme9652, RME9652_control_register, rme9652->control_register);
1236 
1237 	if (restart) {
1238 		rme9652_start(rme9652);
1239 	}
1240 
1241 	return 0;
1242 }
1243 
1244 static int snd_rme9652_info_sync_pref(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1245 {
1246 	static char *texts[4] = {"IEC958 In", "ADAT1 In", "ADAT2 In", "ADAT3 In"};
1247 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1248 
1249 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1250 	uinfo->count = 1;
1251 	uinfo->value.enumerated.items = rme9652->ss_channels == RME9652_NCHANNELS ? 4 : 3;
1252 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
1253 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
1254 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1255 	return 0;
1256 }
1257 
1258 static int snd_rme9652_get_sync_pref(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1259 {
1260 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1261 
1262 	spin_lock_irq(&rme9652->lock);
1263 	ucontrol->value.enumerated.item[0] = rme9652_sync_pref(rme9652);
1264 	spin_unlock_irq(&rme9652->lock);
1265 	return 0;
1266 }
1267 
1268 static int snd_rme9652_put_sync_pref(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1269 {
1270 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1271 	int change, max;
1272 	unsigned int val;
1273 
1274 	if (!snd_rme9652_use_is_exclusive(rme9652))
1275 		return -EBUSY;
1276 	max = rme9652->ss_channels == RME9652_NCHANNELS ? 4 : 3;
1277 	val = ucontrol->value.enumerated.item[0] % max;
1278 	spin_lock_irq(&rme9652->lock);
1279 	change = (int)val != rme9652_sync_pref(rme9652);
1280 	rme9652_set_sync_pref(rme9652, val);
1281 	spin_unlock_irq(&rme9652->lock);
1282 	return change;
1283 }
1284 
1285 static int snd_rme9652_info_thru(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1286 {
1287 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1288 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1289 	uinfo->count = rme9652->ss_channels;
1290 	uinfo->value.integer.min = 0;
1291 	uinfo->value.integer.max = 1;
1292 	return 0;
1293 }
1294 
1295 static int snd_rme9652_get_thru(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1296 {
1297 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1298 	unsigned int k;
1299 	u32 thru_bits = rme9652->thru_bits;
1300 
1301 	for (k = 0; k < rme9652->ss_channels; ++k) {
1302 		ucontrol->value.integer.value[k] = !!(thru_bits & (1 << k));
1303 	}
1304 	return 0;
1305 }
1306 
1307 static int snd_rme9652_put_thru(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1308 {
1309 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1310 	int change;
1311 	unsigned int chn;
1312 	u32 thru_bits = 0;
1313 
1314 	if (!snd_rme9652_use_is_exclusive(rme9652))
1315 		return -EBUSY;
1316 
1317 	for (chn = 0; chn < rme9652->ss_channels; ++chn) {
1318 		if (ucontrol->value.integer.value[chn])
1319 			thru_bits |= 1 << chn;
1320 	}
1321 
1322 	spin_lock_irq(&rme9652->lock);
1323 	change = thru_bits ^ rme9652->thru_bits;
1324 	if (change) {
1325 		for (chn = 0; chn < rme9652->ss_channels; ++chn) {
1326 			if (!(change & (1 << chn)))
1327 				continue;
1328 			rme9652_set_thru(rme9652,chn,thru_bits&(1<<chn));
1329 		}
1330 	}
1331 	spin_unlock_irq(&rme9652->lock);
1332 	return !!change;
1333 }
1334 
1335 #define RME9652_PASSTHRU(xname, xindex) \
1336 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1337   .info = snd_rme9652_info_passthru, \
1338   .put = snd_rme9652_put_passthru, \
1339   .get = snd_rme9652_get_passthru }
1340 
1341 static int snd_rme9652_info_passthru(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1342 {
1343 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1344 	uinfo->count = 1;
1345 	uinfo->value.integer.min = 0;
1346 	uinfo->value.integer.max = 1;
1347 	return 0;
1348 }
1349 
1350 static int snd_rme9652_get_passthru(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1351 {
1352 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1353 
1354 	spin_lock_irq(&rme9652->lock);
1355 	ucontrol->value.integer.value[0] = rme9652->passthru;
1356 	spin_unlock_irq(&rme9652->lock);
1357 	return 0;
1358 }
1359 
1360 static int snd_rme9652_put_passthru(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1361 {
1362 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1363 	int change;
1364 	unsigned int val;
1365 	int err = 0;
1366 
1367 	if (!snd_rme9652_use_is_exclusive(rme9652))
1368 		return -EBUSY;
1369 
1370 	val = ucontrol->value.integer.value[0] & 1;
1371 	spin_lock_irq(&rme9652->lock);
1372 	change = (ucontrol->value.integer.value[0] != rme9652->passthru);
1373 	if (change)
1374 		err = rme9652_set_passthru(rme9652, val);
1375 	spin_unlock_irq(&rme9652->lock);
1376 	return err ? err : change;
1377 }
1378 
1379 /* Read-only switches */
1380 
1381 #define RME9652_SPDIF_RATE(xname, xindex) \
1382 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1383   .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
1384   .info = snd_rme9652_info_spdif_rate, \
1385   .get = snd_rme9652_get_spdif_rate }
1386 
1387 static int snd_rme9652_info_spdif_rate(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1388 {
1389 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1390 	uinfo->count = 1;
1391 	uinfo->value.integer.min = 0;
1392 	uinfo->value.integer.max = 96000;
1393 	return 0;
1394 }
1395 
1396 static int snd_rme9652_get_spdif_rate(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1397 {
1398 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1399 
1400 	spin_lock_irq(&rme9652->lock);
1401 	ucontrol->value.integer.value[0] = rme9652_spdif_sample_rate(rme9652);
1402 	spin_unlock_irq(&rme9652->lock);
1403 	return 0;
1404 }
1405 
1406 #define RME9652_ADAT_SYNC(xname, xindex, xidx) \
1407 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1408   .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
1409   .info = snd_rme9652_info_adat_sync, \
1410   .get = snd_rme9652_get_adat_sync, .private_value = xidx }
1411 
1412 static int snd_rme9652_info_adat_sync(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1413 {
1414 	static char *texts[4] = {"No Lock", "Lock", "No Lock Sync", "Lock Sync"};
1415 
1416 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1417 	uinfo->count = 1;
1418 	uinfo->value.enumerated.items = 4;
1419 	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
1420 		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
1421 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1422 	return 0;
1423 }
1424 
1425 static int snd_rme9652_get_adat_sync(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1426 {
1427 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1428 	unsigned int mask1, mask2, val;
1429 
1430 	switch (kcontrol->private_value) {
1431 	case 0: mask1 = RME9652_lock_0; mask2 = RME9652_sync_0; break;
1432 	case 1: mask1 = RME9652_lock_1; mask2 = RME9652_sync_1; break;
1433 	case 2: mask1 = RME9652_lock_2; mask2 = RME9652_sync_2; break;
1434 	default: return -EINVAL;
1435 	}
1436 	val = rme9652_read(rme9652, RME9652_status_register);
1437 	ucontrol->value.enumerated.item[0] = (val & mask1) ? 1 : 0;
1438 	ucontrol->value.enumerated.item[0] |= (val & mask2) ? 2 : 0;
1439 	return 0;
1440 }
1441 
1442 #define RME9652_TC_VALID(xname, xindex) \
1443 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1444   .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
1445   .info = snd_rme9652_info_tc_valid, \
1446   .get = snd_rme9652_get_tc_valid }
1447 
1448 static int snd_rme9652_info_tc_valid(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1449 {
1450 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1451 	uinfo->count = 1;
1452 	uinfo->value.integer.min = 0;
1453 	uinfo->value.integer.max = 1;
1454 	return 0;
1455 }
1456 
1457 static int snd_rme9652_get_tc_valid(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1458 {
1459 	struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1460 
1461 	ucontrol->value.integer.value[0] =
1462 		(rme9652_read(rme9652, RME9652_status_register) & RME9652_tc_valid) ? 1 : 0;
1463 	return 0;
1464 }
1465 
1466 #ifdef ALSA_HAS_STANDARD_WAY_OF_RETURNING_TIMECODE
1467 
1468 /* FIXME: this routine needs a port to the new control API --jk */
1469 
1470 static int snd_rme9652_get_tc_value(void *private_data,
1471 				    snd_kswitch_t *kswitch,
1472 				    snd_switch_t *uswitch)
1473 {
1474 	struct snd_rme9652 *s = (struct snd_rme9652 *) private_data;
1475 	u32 value;
1476 	int i;
1477 
1478 	uswitch->type = SNDRV_SW_TYPE_DWORD;
1479 
1480 	if ((rme9652_read(s, RME9652_status_register) &
1481 	     RME9652_tc_valid) == 0) {
1482 		uswitch->value.data32[0] = 0;
1483 		return 0;
1484 	}
1485 
1486 	/* timecode request */
1487 
1488 	rme9652_write(s, RME9652_time_code, 0);
1489 
1490 	/* XXX bug alert: loop-based timing !!!! */
1491 
1492 	for (i = 0; i < 50; i++) {
1493 		if (!(rme9652_read(s, i * 4) & RME9652_tc_busy))
1494 			break;
1495 	}
1496 
1497 	if (!(rme9652_read(s, i * 4) & RME9652_tc_busy)) {
1498 		return -EIO;
1499 	}
1500 
1501 	value = 0;
1502 
1503 	for (i = 0; i < 32; i++) {
1504 		value >>= 1;
1505 
1506 		if (rme9652_read(s, i * 4) & RME9652_tc_out)
1507 			value |= 0x80000000;
1508 	}
1509 
1510 	if (value > 2 * 60 * 48000) {
1511 		value -= 2 * 60 * 48000;
1512 	} else {
1513 		value = 0;
1514 	}
1515 
1516 	uswitch->value.data32[0] = value;
1517 
1518 	return 0;
1519 }
1520 
1521 #endif				/* ALSA_HAS_STANDARD_WAY_OF_RETURNING_TIMECODE */
1522 
1523 static struct snd_kcontrol_new snd_rme9652_controls[] = {
1524 {
1525 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
1526 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1527 	.info =		snd_rme9652_control_spdif_info,
1528 	.get =		snd_rme9652_control_spdif_get,
1529 	.put =		snd_rme9652_control_spdif_put,
1530 },
1531 {
1532 	.access =	SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
1533 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
1534 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
1535 	.info =		snd_rme9652_control_spdif_stream_info,
1536 	.get =		snd_rme9652_control_spdif_stream_get,
1537 	.put =		snd_rme9652_control_spdif_stream_put,
1538 },
1539 {
1540 	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
1541 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
1542 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
1543 	.info =		snd_rme9652_control_spdif_mask_info,
1544 	.get =		snd_rme9652_control_spdif_mask_get,
1545 	.private_value = IEC958_AES0_NONAUDIO |
1546 			IEC958_AES0_PROFESSIONAL |
1547 			IEC958_AES0_CON_EMPHASIS,
1548 },
1549 {
1550 	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
1551 	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
1552 	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
1553 	.info =		snd_rme9652_control_spdif_mask_info,
1554 	.get =		snd_rme9652_control_spdif_mask_get,
1555 	.private_value = IEC958_AES0_NONAUDIO |
1556 			IEC958_AES0_PROFESSIONAL |
1557 			IEC958_AES0_PRO_EMPHASIS,
1558 },
1559 RME9652_SPDIF_IN("IEC958 Input Connector", 0),
1560 RME9652_SPDIF_OUT("IEC958 Output also on ADAT1", 0),
1561 RME9652_SYNC_MODE("Sync Mode", 0),
1562 RME9652_SYNC_PREF("Preferred Sync Source", 0),
1563 {
1564 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1565 	.name = "Channels Thru",
1566 	.index = 0,
1567 	.info = snd_rme9652_info_thru,
1568 	.get = snd_rme9652_get_thru,
1569 	.put = snd_rme9652_put_thru,
1570 },
1571 RME9652_SPDIF_RATE("IEC958 Sample Rate", 0),
1572 RME9652_ADAT_SYNC("ADAT1 Sync Check", 0, 0),
1573 RME9652_ADAT_SYNC("ADAT2 Sync Check", 0, 1),
1574 RME9652_TC_VALID("Timecode Valid", 0),
1575 RME9652_PASSTHRU("Passthru", 0)
1576 };
1577 
1578 static struct snd_kcontrol_new snd_rme9652_adat3_check =
1579 RME9652_ADAT_SYNC("ADAT3 Sync Check", 0, 2);
1580 
1581 static struct snd_kcontrol_new snd_rme9652_adat1_input =
1582 RME9652_ADAT1_IN("ADAT1 Input Source", 0);
1583 
1584 static int snd_rme9652_create_controls(struct snd_card *card, struct snd_rme9652 *rme9652)
1585 {
1586 	unsigned int idx;
1587 	int err;
1588 	struct snd_kcontrol *kctl;
1589 
1590 	for (idx = 0; idx < ARRAY_SIZE(snd_rme9652_controls); idx++) {
1591 		if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme9652_controls[idx], rme9652))) < 0)
1592 			return err;
1593 		if (idx == 1)	/* IEC958 (S/PDIF) Stream */
1594 			rme9652->spdif_ctl = kctl;
1595 	}
1596 
1597 	if (rme9652->ss_channels == RME9652_NCHANNELS)
1598 		if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme9652_adat3_check, rme9652))) < 0)
1599 			return err;
1600 
1601 	if (rme9652->hw_rev >= 15)
1602 		if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme9652_adat1_input, rme9652))) < 0)
1603 			return err;
1604 
1605 	return 0;
1606 }
1607 
1608 /*------------------------------------------------------------
1609    /proc interface
1610  ------------------------------------------------------------*/
1611 
1612 static void
1613 snd_rme9652_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
1614 {
1615 	struct snd_rme9652 *rme9652 = (struct snd_rme9652 *) entry->private_data;
1616 	u32 thru_bits = rme9652->thru_bits;
1617 	int show_auto_sync_source = 0;
1618 	int i;
1619 	unsigned int status;
1620 	int x;
1621 
1622 	status = rme9652_read(rme9652, RME9652_status_register);
1623 
1624 	snd_iprintf(buffer, "%s (Card #%d)\n", rme9652->card_name, rme9652->card->number + 1);
1625 	snd_iprintf(buffer, "Buffers: capture %p playback %p\n",
1626 		    rme9652->capture_buffer, rme9652->playback_buffer);
1627 	snd_iprintf(buffer, "IRQ: %d Registers bus: 0x%lx VM: 0x%lx\n",
1628 		    rme9652->irq, rme9652->port, (unsigned long)rme9652->iobase);
1629 	snd_iprintf(buffer, "Control register: %x\n", rme9652->control_register);
1630 
1631 	snd_iprintf(buffer, "\n");
1632 
1633 	x = 1 << (6 + rme9652_decode_latency(rme9652->control_register &
1634 					     RME9652_latency));
1635 
1636 	snd_iprintf(buffer, "Latency: %d samples (2 periods of %lu bytes)\n",
1637 		    x, (unsigned long) rme9652->period_bytes);
1638 	snd_iprintf(buffer, "Hardware pointer (frames): %ld\n",
1639 		    rme9652_hw_pointer(rme9652));
1640 	snd_iprintf(buffer, "Passthru: %s\n",
1641 		    rme9652->passthru ? "yes" : "no");
1642 
1643 	if ((rme9652->control_register & (RME9652_Master | RME9652_wsel)) == 0) {
1644 		snd_iprintf(buffer, "Clock mode: autosync\n");
1645 		show_auto_sync_source = 1;
1646 	} else if (rme9652->control_register & RME9652_wsel) {
1647 		if (status & RME9652_wsel_rd) {
1648 			snd_iprintf(buffer, "Clock mode: word clock\n");
1649 		} else {
1650 			snd_iprintf(buffer, "Clock mode: word clock (no signal)\n");
1651 		}
1652 	} else {
1653 		snd_iprintf(buffer, "Clock mode: master\n");
1654 	}
1655 
1656 	if (show_auto_sync_source) {
1657 		switch (rme9652->control_register & RME9652_SyncPref_Mask) {
1658 		case RME9652_SyncPref_ADAT1:
1659 			snd_iprintf(buffer, "Pref. sync source: ADAT1\n");
1660 			break;
1661 		case RME9652_SyncPref_ADAT2:
1662 			snd_iprintf(buffer, "Pref. sync source: ADAT2\n");
1663 			break;
1664 		case RME9652_SyncPref_ADAT3:
1665 			snd_iprintf(buffer, "Pref. sync source: ADAT3\n");
1666 			break;
1667 		case RME9652_SyncPref_SPDIF:
1668 			snd_iprintf(buffer, "Pref. sync source: IEC958\n");
1669 			break;
1670 		default:
1671 			snd_iprintf(buffer, "Pref. sync source: ???\n");
1672 		}
1673 	}
1674 
1675 	if (rme9652->hw_rev >= 15)
1676 		snd_iprintf(buffer, "\nADAT1 Input source: %s\n",
1677 			    (rme9652->control_register & RME9652_ADAT1_INTERNAL) ?
1678 			    "Internal" : "ADAT1 optical");
1679 
1680 	snd_iprintf(buffer, "\n");
1681 
1682 	switch (rme9652_decode_spdif_in(rme9652->control_register &
1683 					RME9652_inp)) {
1684 	case RME9652_SPDIFIN_OPTICAL:
1685 		snd_iprintf(buffer, "IEC958 input: ADAT1\n");
1686 		break;
1687 	case RME9652_SPDIFIN_COAXIAL:
1688 		snd_iprintf(buffer, "IEC958 input: Coaxial\n");
1689 		break;
1690 	case RME9652_SPDIFIN_INTERN:
1691 		snd_iprintf(buffer, "IEC958 input: Internal\n");
1692 		break;
1693 	default:
1694 		snd_iprintf(buffer, "IEC958 input: ???\n");
1695 		break;
1696 	}
1697 
1698 	if (rme9652->control_register & RME9652_opt_out) {
1699 		snd_iprintf(buffer, "IEC958 output: Coaxial & ADAT1\n");
1700 	} else {
1701 		snd_iprintf(buffer, "IEC958 output: Coaxial only\n");
1702 	}
1703 
1704 	if (rme9652->control_register & RME9652_PRO) {
1705 		snd_iprintf(buffer, "IEC958 quality: Professional\n");
1706 	} else {
1707 		snd_iprintf(buffer, "IEC958 quality: Consumer\n");
1708 	}
1709 
1710 	if (rme9652->control_register & RME9652_EMP) {
1711 		snd_iprintf(buffer, "IEC958 emphasis: on\n");
1712 	} else {
1713 		snd_iprintf(buffer, "IEC958 emphasis: off\n");
1714 	}
1715 
1716 	if (rme9652->control_register & RME9652_Dolby) {
1717 		snd_iprintf(buffer, "IEC958 Dolby: on\n");
1718 	} else {
1719 		snd_iprintf(buffer, "IEC958 Dolby: off\n");
1720 	}
1721 
1722 	i = rme9652_spdif_sample_rate(rme9652);
1723 
1724 	if (i < 0) {
1725 		snd_iprintf(buffer,
1726 			    "IEC958 sample rate: error flag set\n");
1727 	} else if (i == 0) {
1728 		snd_iprintf(buffer, "IEC958 sample rate: undetermined\n");
1729 	} else {
1730 		snd_iprintf(buffer, "IEC958 sample rate: %d\n", i);
1731 	}
1732 
1733 	snd_iprintf(buffer, "\n");
1734 
1735 	snd_iprintf(buffer, "ADAT Sample rate: %dHz\n",
1736 		    rme9652_adat_sample_rate(rme9652));
1737 
1738 	/* Sync Check */
1739 
1740 	x = status & RME9652_sync_0;
1741 	if (status & RME9652_lock_0) {
1742 		snd_iprintf(buffer, "ADAT1: %s\n", x ? "Sync" : "Lock");
1743 	} else {
1744 		snd_iprintf(buffer, "ADAT1: No Lock\n");
1745 	}
1746 
1747 	x = status & RME9652_sync_1;
1748 	if (status & RME9652_lock_1) {
1749 		snd_iprintf(buffer, "ADAT2: %s\n", x ? "Sync" : "Lock");
1750 	} else {
1751 		snd_iprintf(buffer, "ADAT2: No Lock\n");
1752 	}
1753 
1754 	x = status & RME9652_sync_2;
1755 	if (status & RME9652_lock_2) {
1756 		snd_iprintf(buffer, "ADAT3: %s\n", x ? "Sync" : "Lock");
1757 	} else {
1758 		snd_iprintf(buffer, "ADAT3: No Lock\n");
1759 	}
1760 
1761 	snd_iprintf(buffer, "\n");
1762 
1763 	snd_iprintf(buffer, "Timecode signal: %s\n",
1764 		    (status & RME9652_tc_valid) ? "yes" : "no");
1765 
1766 	/* thru modes */
1767 
1768 	snd_iprintf(buffer, "Punch Status:\n\n");
1769 
1770 	for (i = 0; i < rme9652->ss_channels; i++) {
1771 		if (thru_bits & (1 << i)) {
1772 			snd_iprintf(buffer, "%2d:  on ", i + 1);
1773 		} else {
1774 			snd_iprintf(buffer, "%2d: off ", i + 1);
1775 		}
1776 
1777 		if (((i + 1) % 8) == 0) {
1778 			snd_iprintf(buffer, "\n");
1779 		}
1780 	}
1781 
1782 	snd_iprintf(buffer, "\n");
1783 }
1784 
1785 static void __devinit snd_rme9652_proc_init(struct snd_rme9652 *rme9652)
1786 {
1787 	struct snd_info_entry *entry;
1788 
1789 	if (! snd_card_proc_new(rme9652->card, "rme9652", &entry))
1790 		snd_info_set_text_ops(entry, rme9652, snd_rme9652_proc_read);
1791 }
1792 
1793 static void snd_rme9652_free_buffers(struct snd_rme9652 *rme9652)
1794 {
1795 	snd_hammerfall_free_buffer(&rme9652->capture_dma_buf, rme9652->pci);
1796 	snd_hammerfall_free_buffer(&rme9652->playback_dma_buf, rme9652->pci);
1797 }
1798 
1799 static int snd_rme9652_free(struct snd_rme9652 *rme9652)
1800 {
1801 	if (rme9652->irq >= 0)
1802 		rme9652_stop(rme9652);
1803 	snd_rme9652_free_buffers(rme9652);
1804 
1805 	if (rme9652->irq >= 0)
1806 		free_irq(rme9652->irq, (void *)rme9652);
1807 	if (rme9652->iobase)
1808 		iounmap(rme9652->iobase);
1809 	if (rme9652->port)
1810 		pci_release_regions(rme9652->pci);
1811 
1812 	pci_disable_device(rme9652->pci);
1813 	return 0;
1814 }
1815 
1816 static int __devinit snd_rme9652_initialize_memory(struct snd_rme9652 *rme9652)
1817 {
1818 	unsigned long pb_bus, cb_bus;
1819 
1820 	if (snd_hammerfall_get_buffer(rme9652->pci, &rme9652->capture_dma_buf, RME9652_DMA_AREA_BYTES) < 0 ||
1821 	    snd_hammerfall_get_buffer(rme9652->pci, &rme9652->playback_dma_buf, RME9652_DMA_AREA_BYTES) < 0) {
1822 		if (rme9652->capture_dma_buf.area)
1823 			snd_dma_free_pages(&rme9652->capture_dma_buf);
1824 		printk(KERN_ERR "%s: no buffers available\n", rme9652->card_name);
1825 		return -ENOMEM;
1826 	}
1827 
1828 	/* Align to bus-space 64K boundary */
1829 
1830 	cb_bus = (rme9652->capture_dma_buf.addr + 0xFFFF) & ~0xFFFFl;
1831 	pb_bus = (rme9652->playback_dma_buf.addr + 0xFFFF) & ~0xFFFFl;
1832 
1833 	/* Tell the card where it is */
1834 
1835 	rme9652_write(rme9652, RME9652_rec_buffer, cb_bus);
1836 	rme9652_write(rme9652, RME9652_play_buffer, pb_bus);
1837 
1838 	rme9652->capture_buffer = rme9652->capture_dma_buf.area + (cb_bus - rme9652->capture_dma_buf.addr);
1839 	rme9652->playback_buffer = rme9652->playback_dma_buf.area + (pb_bus - rme9652->playback_dma_buf.addr);
1840 
1841 	return 0;
1842 }
1843 
1844 static void snd_rme9652_set_defaults(struct snd_rme9652 *rme9652)
1845 {
1846 	unsigned int k;
1847 
1848 	/* ASSUMPTION: rme9652->lock is either held, or
1849 	   there is no need to hold it (e.g. during module
1850 	   initalization).
1851 	 */
1852 
1853 	/* set defaults:
1854 
1855 	   SPDIF Input via Coax
1856 	   autosync clock mode
1857 	   maximum latency (7 = 8192 samples, 64Kbyte buffer,
1858 	   which implies 2 4096 sample, 32Kbyte periods).
1859 
1860 	   if rev 1.5, initialize the S/PDIF receiver.
1861 
1862 	 */
1863 
1864 	rme9652->control_register =
1865 	    RME9652_inp_0 | rme9652_encode_latency(7);
1866 
1867 	rme9652_write(rme9652, RME9652_control_register, rme9652->control_register);
1868 
1869 	rme9652_reset_hw_pointer(rme9652);
1870 	rme9652_compute_period_size(rme9652);
1871 
1872 	/* default: thru off for all channels */
1873 
1874 	for (k = 0; k < RME9652_NCHANNELS; ++k)
1875 		rme9652_write(rme9652, RME9652_thru_base + k * 4, 0);
1876 
1877 	rme9652->thru_bits = 0;
1878 	rme9652->passthru = 0;
1879 
1880 	/* set a default rate so that the channel map is set up */
1881 
1882 	rme9652_set_rate(rme9652, 48000);
1883 }
1884 
1885 static irqreturn_t snd_rme9652_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1886 {
1887 	struct snd_rme9652 *rme9652 = (struct snd_rme9652 *) dev_id;
1888 
1889 	if (!(rme9652_read(rme9652, RME9652_status_register) & RME9652_IRQ)) {
1890 		return IRQ_NONE;
1891 	}
1892 
1893 	rme9652_write(rme9652, RME9652_irq_clear, 0);
1894 
1895 	if (rme9652->capture_substream) {
1896 		snd_pcm_period_elapsed(rme9652->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
1897 	}
1898 
1899 	if (rme9652->playback_substream) {
1900 		snd_pcm_period_elapsed(rme9652->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream);
1901 	}
1902 	return IRQ_HANDLED;
1903 }
1904 
1905 static snd_pcm_uframes_t snd_rme9652_hw_pointer(struct snd_pcm_substream *substream)
1906 {
1907 	struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
1908 	return rme9652_hw_pointer(rme9652);
1909 }
1910 
1911 static char *rme9652_channel_buffer_location(struct snd_rme9652 *rme9652,
1912 					     int stream,
1913 					     int channel)
1914 
1915 {
1916 	int mapped_channel;
1917 
1918         snd_assert(channel >= 0 || channel < RME9652_NCHANNELS, return NULL);
1919 
1920 	if ((mapped_channel = rme9652->channel_map[channel]) < 0) {
1921 		return NULL;
1922 	}
1923 
1924 	if (stream == SNDRV_PCM_STREAM_CAPTURE) {
1925 		return rme9652->capture_buffer +
1926 			(mapped_channel * RME9652_CHANNEL_BUFFER_BYTES);
1927 	} else {
1928 		return rme9652->playback_buffer +
1929 			(mapped_channel * RME9652_CHANNEL_BUFFER_BYTES);
1930 	}
1931 }
1932 
1933 static int snd_rme9652_playback_copy(struct snd_pcm_substream *substream, int channel,
1934 				     snd_pcm_uframes_t pos, void __user *src, snd_pcm_uframes_t count)
1935 {
1936 	struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
1937 	char *channel_buf;
1938 
1939 	snd_assert(pos + count <= RME9652_CHANNEL_BUFFER_BYTES / 4, return -EINVAL);
1940 
1941 	channel_buf = rme9652_channel_buffer_location (rme9652,
1942 						       substream->pstr->stream,
1943 						       channel);
1944 	snd_assert(channel_buf != NULL, return -EIO);
1945 	if (copy_from_user(channel_buf + pos * 4, src, count * 4))
1946 		return -EFAULT;
1947 	return count;
1948 }
1949 
1950 static int snd_rme9652_capture_copy(struct snd_pcm_substream *substream, int channel,
1951 				    snd_pcm_uframes_t pos, void __user *dst, snd_pcm_uframes_t count)
1952 {
1953 	struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
1954 	char *channel_buf;
1955 
1956 	snd_assert(pos + count <= RME9652_CHANNEL_BUFFER_BYTES / 4, return -EINVAL);
1957 
1958 	channel_buf = rme9652_channel_buffer_location (rme9652,
1959 						       substream->pstr->stream,
1960 						       channel);
1961 	snd_assert(channel_buf != NULL, return -EIO);
1962 	if (copy_to_user(dst, channel_buf + pos * 4, count * 4))
1963 		return -EFAULT;
1964 	return count;
1965 }
1966 
1967 static int snd_rme9652_hw_silence(struct snd_pcm_substream *substream, int channel,
1968 				  snd_pcm_uframes_t pos, snd_pcm_uframes_t count)
1969 {
1970 	struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
1971 	char *channel_buf;
1972 
1973 	channel_buf = rme9652_channel_buffer_location (rme9652,
1974 						       substream->pstr->stream,
1975 						       channel);
1976 	snd_assert(channel_buf != NULL, return -EIO);
1977 	memset(channel_buf + pos * 4, 0, count * 4);
1978 	return count;
1979 }
1980 
1981 static int snd_rme9652_reset(struct snd_pcm_substream *substream)
1982 {
1983 	struct snd_pcm_runtime *runtime = substream->runtime;
1984 	struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
1985 	struct snd_pcm_substream *other;
1986 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
1987 		other = rme9652->capture_substream;
1988 	else
1989 		other = rme9652->playback_substream;
1990 	if (rme9652->running)
1991 		runtime->status->hw_ptr = rme9652_hw_pointer(rme9652);
1992 	else
1993 		runtime->status->hw_ptr = 0;
1994 	if (other) {
1995 		struct list_head *pos;
1996 		struct snd_pcm_substream *s;
1997 		struct snd_pcm_runtime *oruntime = other->runtime;
1998 		snd_pcm_group_for_each(pos, substream) {
1999 			s = snd_pcm_group_substream_entry(pos);
2000 			if (s == other) {
2001 				oruntime->status->hw_ptr = runtime->status->hw_ptr;
2002 				break;
2003 			}
2004 		}
2005 	}
2006 	return 0;
2007 }
2008 
2009 static int snd_rme9652_hw_params(struct snd_pcm_substream *substream,
2010 				 struct snd_pcm_hw_params *params)
2011 {
2012 	struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
2013 	int err;
2014 	pid_t this_pid;
2015 	pid_t other_pid;
2016 
2017 	spin_lock_irq(&rme9652->lock);
2018 
2019 	if (substream->pstr->stream == SNDRV_PCM_STREAM_PLAYBACK) {
2020 		rme9652->control_register &= ~(RME9652_PRO | RME9652_Dolby | RME9652_EMP);
2021 		rme9652_write(rme9652, RME9652_control_register, rme9652->control_register |= rme9652->creg_spdif_stream);
2022 		this_pid = rme9652->playback_pid;
2023 		other_pid = rme9652->capture_pid;
2024 	} else {
2025 		this_pid = rme9652->capture_pid;
2026 		other_pid = rme9652->playback_pid;
2027 	}
2028 
2029 	if ((other_pid > 0) && (this_pid != other_pid)) {
2030 
2031 		/* The other stream is open, and not by the same
2032 		   task as this one. Make sure that the parameters
2033 		   that matter are the same.
2034 		 */
2035 
2036 		if ((int)params_rate(params) !=
2037 		    rme9652_adat_sample_rate(rme9652)) {
2038 			spin_unlock_irq(&rme9652->lock);
2039 			_snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_RATE);
2040 			return -EBUSY;
2041 		}
2042 
2043 		if (params_period_size(params) != rme9652->period_bytes / 4) {
2044 			spin_unlock_irq(&rme9652->lock);
2045 			_snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE);
2046 			return -EBUSY;
2047 		}
2048 
2049 		/* We're fine. */
2050 
2051 		spin_unlock_irq(&rme9652->lock);
2052  		return 0;
2053 
2054 	} else {
2055 		spin_unlock_irq(&rme9652->lock);
2056 	}
2057 
2058 	/* how to make sure that the rate matches an externally-set one ?
2059 	 */
2060 
2061 	if ((err = rme9652_set_rate(rme9652, params_rate(params))) < 0) {
2062 		_snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_RATE);
2063 		return err;
2064 	}
2065 
2066 	if ((err = rme9652_set_interrupt_interval(rme9652, params_period_size(params))) < 0) {
2067 		_snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE);
2068 		return err;
2069 	}
2070 
2071 	return 0;
2072 }
2073 
2074 static int snd_rme9652_channel_info(struct snd_pcm_substream *substream,
2075 				    struct snd_pcm_channel_info *info)
2076 {
2077 	struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
2078 	int chn;
2079 
2080 	snd_assert(info->channel < RME9652_NCHANNELS, return -EINVAL);
2081 
2082 	if ((chn = rme9652->channel_map[info->channel]) < 0) {
2083 		return -EINVAL;
2084 	}
2085 
2086 	info->offset = chn * RME9652_CHANNEL_BUFFER_BYTES;
2087 	info->first = 0;
2088 	info->step = 32;
2089 	return 0;
2090 }
2091 
2092 static int snd_rme9652_ioctl(struct snd_pcm_substream *substream,
2093 			     unsigned int cmd, void *arg)
2094 {
2095 	switch (cmd) {
2096 	case SNDRV_PCM_IOCTL1_RESET:
2097 	{
2098 		return snd_rme9652_reset(substream);
2099 	}
2100 	case SNDRV_PCM_IOCTL1_CHANNEL_INFO:
2101 	{
2102 		struct snd_pcm_channel_info *info = arg;
2103 		return snd_rme9652_channel_info(substream, info);
2104 	}
2105 	default:
2106 		break;
2107 	}
2108 
2109 	return snd_pcm_lib_ioctl(substream, cmd, arg);
2110 }
2111 
2112 static void rme9652_silence_playback(struct snd_rme9652 *rme9652)
2113 {
2114 	memset(rme9652->playback_buffer, 0, RME9652_DMA_AREA_BYTES);
2115 }
2116 
2117 static int snd_rme9652_trigger(struct snd_pcm_substream *substream,
2118 			       int cmd)
2119 {
2120 	struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
2121 	struct snd_pcm_substream *other;
2122 	int running;
2123 	spin_lock(&rme9652->lock);
2124 	running = rme9652->running;
2125 	switch (cmd) {
2126 	case SNDRV_PCM_TRIGGER_START:
2127 		running |= 1 << substream->stream;
2128 		break;
2129 	case SNDRV_PCM_TRIGGER_STOP:
2130 		running &= ~(1 << substream->stream);
2131 		break;
2132 	default:
2133 		snd_BUG();
2134 		spin_unlock(&rme9652->lock);
2135 		return -EINVAL;
2136 	}
2137 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
2138 		other = rme9652->capture_substream;
2139 	else
2140 		other = rme9652->playback_substream;
2141 
2142 	if (other) {
2143 		struct list_head *pos;
2144 		struct snd_pcm_substream *s;
2145 		snd_pcm_group_for_each(pos, substream) {
2146 			s = snd_pcm_group_substream_entry(pos);
2147 			if (s == other) {
2148 				snd_pcm_trigger_done(s, substream);
2149 				if (cmd == SNDRV_PCM_TRIGGER_START)
2150 					running |= 1 << s->stream;
2151 				else
2152 					running &= ~(1 << s->stream);
2153 				goto _ok;
2154 			}
2155 		}
2156 		if (cmd == SNDRV_PCM_TRIGGER_START) {
2157 			if (!(running & (1 << SNDRV_PCM_STREAM_PLAYBACK)) &&
2158 			    substream->stream == SNDRV_PCM_STREAM_CAPTURE)
2159 				rme9652_silence_playback(rme9652);
2160 		} else {
2161 			if (running &&
2162 			    substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
2163 				rme9652_silence_playback(rme9652);
2164 		}
2165 	} else {
2166 		if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
2167 			rme9652_silence_playback(rme9652);
2168 	}
2169  _ok:
2170 	snd_pcm_trigger_done(substream, substream);
2171 	if (!rme9652->running && running)
2172 		rme9652_start(rme9652);
2173 	else if (rme9652->running && !running)
2174 		rme9652_stop(rme9652);
2175 	rme9652->running = running;
2176 	spin_unlock(&rme9652->lock);
2177 
2178 	return 0;
2179 }
2180 
2181 static int snd_rme9652_prepare(struct snd_pcm_substream *substream)
2182 {
2183 	struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
2184 	unsigned long flags;
2185 	int result = 0;
2186 
2187 	spin_lock_irqsave(&rme9652->lock, flags);
2188 	if (!rme9652->running)
2189 		rme9652_reset_hw_pointer(rme9652);
2190 	spin_unlock_irqrestore(&rme9652->lock, flags);
2191 	return result;
2192 }
2193 
2194 static struct snd_pcm_hardware snd_rme9652_playback_subinfo =
2195 {
2196 	.info =			(SNDRV_PCM_INFO_MMAP |
2197 				 SNDRV_PCM_INFO_MMAP_VALID |
2198 				 SNDRV_PCM_INFO_NONINTERLEAVED |
2199 				 SNDRV_PCM_INFO_SYNC_START |
2200 				 SNDRV_PCM_INFO_DOUBLE),
2201 	.formats =		SNDRV_PCM_FMTBIT_S32_LE,
2202 	.rates =		(SNDRV_PCM_RATE_44100 |
2203 				 SNDRV_PCM_RATE_48000 |
2204 				 SNDRV_PCM_RATE_88200 |
2205 				 SNDRV_PCM_RATE_96000),
2206 	.rate_min =		44100,
2207 	.rate_max =		96000,
2208 	.channels_min =		10,
2209 	.channels_max =		26,
2210 	.buffer_bytes_max =	RME9652_CHANNEL_BUFFER_BYTES * 26,
2211 	.period_bytes_min =	(64 * 4) * 10,
2212 	.period_bytes_max =	(8192 * 4) * 26,
2213 	.periods_min =		2,
2214 	.periods_max =		2,
2215 	.fifo_size =		0,
2216 };
2217 
2218 static struct snd_pcm_hardware snd_rme9652_capture_subinfo =
2219 {
2220 	.info =			(SNDRV_PCM_INFO_MMAP |
2221 				 SNDRV_PCM_INFO_MMAP_VALID |
2222 				 SNDRV_PCM_INFO_NONINTERLEAVED |
2223 				 SNDRV_PCM_INFO_SYNC_START),
2224 	.formats =		SNDRV_PCM_FMTBIT_S32_LE,
2225 	.rates =		(SNDRV_PCM_RATE_44100 |
2226 				 SNDRV_PCM_RATE_48000 |
2227 				 SNDRV_PCM_RATE_88200 |
2228 				 SNDRV_PCM_RATE_96000),
2229 	.rate_min =		44100,
2230 	.rate_max =		96000,
2231 	.channels_min =		10,
2232 	.channels_max =		26,
2233 	.buffer_bytes_max =	RME9652_CHANNEL_BUFFER_BYTES *26,
2234 	.period_bytes_min =	(64 * 4) * 10,
2235 	.period_bytes_max =	(8192 * 4) * 26,
2236 	.periods_min =		2,
2237 	.periods_max =		2,
2238 	.fifo_size =		0,
2239 };
2240 
2241 static unsigned int period_sizes[] = { 64, 128, 256, 512, 1024, 2048, 4096, 8192 };
2242 
2243 static struct snd_pcm_hw_constraint_list hw_constraints_period_sizes = {
2244 	.count = ARRAY_SIZE(period_sizes),
2245 	.list = period_sizes,
2246 	.mask = 0
2247 };
2248 
2249 static int snd_rme9652_hw_rule_channels(struct snd_pcm_hw_params *params,
2250 					struct snd_pcm_hw_rule *rule)
2251 {
2252 	struct snd_rme9652 *rme9652 = rule->private;
2253 	struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
2254 	unsigned int list[2] = { rme9652->ds_channels, rme9652->ss_channels };
2255 	return snd_interval_list(c, 2, list, 0);
2256 }
2257 
2258 static int snd_rme9652_hw_rule_channels_rate(struct snd_pcm_hw_params *params,
2259 					     struct snd_pcm_hw_rule *rule)
2260 {
2261 	struct snd_rme9652 *rme9652 = rule->private;
2262 	struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
2263 	struct snd_interval *r = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
2264 	if (r->min > 48000) {
2265 		struct snd_interval t = {
2266 			.min = rme9652->ds_channels,
2267 			.max = rme9652->ds_channels,
2268 			.integer = 1,
2269 		};
2270 		return snd_interval_refine(c, &t);
2271 	} else if (r->max < 88200) {
2272 		struct snd_interval t = {
2273 			.min = rme9652->ss_channels,
2274 			.max = rme9652->ss_channels,
2275 			.integer = 1,
2276 		};
2277 		return snd_interval_refine(c, &t);
2278 	}
2279 	return 0;
2280 }
2281 
2282 static int snd_rme9652_hw_rule_rate_channels(struct snd_pcm_hw_params *params,
2283 					     struct snd_pcm_hw_rule *rule)
2284 {
2285 	struct snd_rme9652 *rme9652 = rule->private;
2286 	struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
2287 	struct snd_interval *r = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
2288 	if (c->min >= rme9652->ss_channels) {
2289 		struct snd_interval t = {
2290 			.min = 44100,
2291 			.max = 48000,
2292 			.integer = 1,
2293 		};
2294 		return snd_interval_refine(r, &t);
2295 	} else if (c->max <= rme9652->ds_channels) {
2296 		struct snd_interval t = {
2297 			.min = 88200,
2298 			.max = 96000,
2299 			.integer = 1,
2300 		};
2301 		return snd_interval_refine(r, &t);
2302 	}
2303 	return 0;
2304 }
2305 
2306 static int snd_rme9652_playback_open(struct snd_pcm_substream *substream)
2307 {
2308 	struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
2309 	struct snd_pcm_runtime *runtime = substream->runtime;
2310 
2311 	spin_lock_irq(&rme9652->lock);
2312 
2313 	snd_pcm_set_sync(substream);
2314 
2315         runtime->hw = snd_rme9652_playback_subinfo;
2316 	runtime->dma_area = rme9652->playback_buffer;
2317 	runtime->dma_bytes = RME9652_DMA_AREA_BYTES;
2318 
2319 	if (rme9652->capture_substream == NULL) {
2320 		rme9652_stop(rme9652);
2321 		rme9652_set_thru(rme9652, -1, 0);
2322 	}
2323 
2324 	rme9652->playback_pid = current->pid;
2325 	rme9652->playback_substream = substream;
2326 
2327 	spin_unlock_irq(&rme9652->lock);
2328 
2329 	snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
2330 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_period_sizes);
2331 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
2332 			     snd_rme9652_hw_rule_channels, rme9652,
2333 			     SNDRV_PCM_HW_PARAM_CHANNELS, -1);
2334 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
2335 			     snd_rme9652_hw_rule_channels_rate, rme9652,
2336 			     SNDRV_PCM_HW_PARAM_RATE, -1);
2337 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
2338 			     snd_rme9652_hw_rule_rate_channels, rme9652,
2339 			     SNDRV_PCM_HW_PARAM_CHANNELS, -1);
2340 
2341 	rme9652->creg_spdif_stream = rme9652->creg_spdif;
2342 	rme9652->spdif_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
2343 	snd_ctl_notify(rme9652->card, SNDRV_CTL_EVENT_MASK_VALUE |
2344 		       SNDRV_CTL_EVENT_MASK_INFO, &rme9652->spdif_ctl->id);
2345 	return 0;
2346 }
2347 
2348 static int snd_rme9652_playback_release(struct snd_pcm_substream *substream)
2349 {
2350 	struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
2351 
2352 	spin_lock_irq(&rme9652->lock);
2353 
2354 	rme9652->playback_pid = -1;
2355 	rme9652->playback_substream = NULL;
2356 
2357 	spin_unlock_irq(&rme9652->lock);
2358 
2359 	rme9652->spdif_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
2360 	snd_ctl_notify(rme9652->card, SNDRV_CTL_EVENT_MASK_VALUE |
2361 		       SNDRV_CTL_EVENT_MASK_INFO, &rme9652->spdif_ctl->id);
2362 	return 0;
2363 }
2364 
2365 
2366 static int snd_rme9652_capture_open(struct snd_pcm_substream *substream)
2367 {
2368 	struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
2369 	struct snd_pcm_runtime *runtime = substream->runtime;
2370 
2371 	spin_lock_irq(&rme9652->lock);
2372 
2373 	snd_pcm_set_sync(substream);
2374 
2375 	runtime->hw = snd_rme9652_capture_subinfo;
2376 	runtime->dma_area = rme9652->capture_buffer;
2377 	runtime->dma_bytes = RME9652_DMA_AREA_BYTES;
2378 
2379 	if (rme9652->playback_substream == NULL) {
2380 		rme9652_stop(rme9652);
2381 		rme9652_set_thru(rme9652, -1, 0);
2382 	}
2383 
2384 	rme9652->capture_pid = current->pid;
2385 	rme9652->capture_substream = substream;
2386 
2387 	spin_unlock_irq(&rme9652->lock);
2388 
2389 	snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
2390 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_period_sizes);
2391 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
2392 			     snd_rme9652_hw_rule_channels, rme9652,
2393 			     SNDRV_PCM_HW_PARAM_CHANNELS, -1);
2394 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
2395 			     snd_rme9652_hw_rule_channels_rate, rme9652,
2396 			     SNDRV_PCM_HW_PARAM_RATE, -1);
2397 	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
2398 			     snd_rme9652_hw_rule_rate_channels, rme9652,
2399 			     SNDRV_PCM_HW_PARAM_CHANNELS, -1);
2400 	return 0;
2401 }
2402 
2403 static int snd_rme9652_capture_release(struct snd_pcm_substream *substream)
2404 {
2405 	struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
2406 
2407 	spin_lock_irq(&rme9652->lock);
2408 
2409 	rme9652->capture_pid = -1;
2410 	rme9652->capture_substream = NULL;
2411 
2412 	spin_unlock_irq(&rme9652->lock);
2413 	return 0;
2414 }
2415 
2416 static struct snd_pcm_ops snd_rme9652_playback_ops = {
2417 	.open =		snd_rme9652_playback_open,
2418 	.close =	snd_rme9652_playback_release,
2419 	.ioctl =	snd_rme9652_ioctl,
2420 	.hw_params =	snd_rme9652_hw_params,
2421 	.prepare =	snd_rme9652_prepare,
2422 	.trigger =	snd_rme9652_trigger,
2423 	.pointer =	snd_rme9652_hw_pointer,
2424 	.copy =		snd_rme9652_playback_copy,
2425 	.silence =	snd_rme9652_hw_silence,
2426 };
2427 
2428 static struct snd_pcm_ops snd_rme9652_capture_ops = {
2429 	.open =		snd_rme9652_capture_open,
2430 	.close =	snd_rme9652_capture_release,
2431 	.ioctl =	snd_rme9652_ioctl,
2432 	.hw_params =	snd_rme9652_hw_params,
2433 	.prepare =	snd_rme9652_prepare,
2434 	.trigger =	snd_rme9652_trigger,
2435 	.pointer =	snd_rme9652_hw_pointer,
2436 	.copy =		snd_rme9652_capture_copy,
2437 };
2438 
2439 static int __devinit snd_rme9652_create_pcm(struct snd_card *card,
2440 					 struct snd_rme9652 *rme9652)
2441 {
2442 	struct snd_pcm *pcm;
2443 	int err;
2444 
2445 	if ((err = snd_pcm_new(card,
2446 			       rme9652->card_name,
2447 			       0, 1, 1, &pcm)) < 0) {
2448 		return err;
2449 	}
2450 
2451 	rme9652->pcm = pcm;
2452 	pcm->private_data = rme9652;
2453 	strcpy(pcm->name, rme9652->card_name);
2454 
2455 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_rme9652_playback_ops);
2456 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_rme9652_capture_ops);
2457 
2458 	pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
2459 
2460 	return 0;
2461 }
2462 
2463 static int __devinit snd_rme9652_create(struct snd_card *card,
2464 				     struct snd_rme9652 *rme9652,
2465 				     int precise_ptr)
2466 {
2467 	struct pci_dev *pci = rme9652->pci;
2468 	int err;
2469 	int status;
2470 	unsigned short rev;
2471 
2472 	rme9652->irq = -1;
2473 	rme9652->card = card;
2474 
2475 	pci_read_config_word(rme9652->pci, PCI_CLASS_REVISION, &rev);
2476 
2477 	switch (rev & 0xff) {
2478 	case 3:
2479 	case 4:
2480 	case 8:
2481 	case 9:
2482 		break;
2483 
2484 	default:
2485 		/* who knows? */
2486 		return -ENODEV;
2487 	}
2488 
2489 	if ((err = pci_enable_device(pci)) < 0)
2490 		return err;
2491 
2492 	spin_lock_init(&rme9652->lock);
2493 
2494 	if ((err = pci_request_regions(pci, "rme9652")) < 0)
2495 		return err;
2496 	rme9652->port = pci_resource_start(pci, 0);
2497 	rme9652->iobase = ioremap_nocache(rme9652->port, RME9652_IO_EXTENT);
2498 	if (rme9652->iobase == NULL) {
2499 		snd_printk(KERN_ERR "unable to remap region 0x%lx-0x%lx\n", rme9652->port, rme9652->port + RME9652_IO_EXTENT - 1);
2500 		return -EBUSY;
2501 	}
2502 
2503 	if (request_irq(pci->irq, snd_rme9652_interrupt, IRQF_DISABLED|IRQF_SHARED, "rme9652", (void *)rme9652)) {
2504 		snd_printk(KERN_ERR "unable to request IRQ %d\n", pci->irq);
2505 		return -EBUSY;
2506 	}
2507 	rme9652->irq = pci->irq;
2508 	rme9652->precise_ptr = precise_ptr;
2509 
2510 	/* Determine the h/w rev level of the card. This seems like
2511 	   a particularly kludgy way to encode it, but its what RME
2512 	   chose to do, so we follow them ...
2513 	*/
2514 
2515 	status = rme9652_read(rme9652, RME9652_status_register);
2516 	if (rme9652_decode_spdif_rate(status&RME9652_F) == 1) {
2517 		rme9652->hw_rev = 15;
2518 	} else {
2519 		rme9652->hw_rev = 11;
2520 	}
2521 
2522 	/* Differentiate between the standard Hammerfall, and the
2523 	   "Light", which does not have the expansion board. This
2524 	   method comes from information received from Mathhias
2525 	   Clausen at RME. Display the EEPROM and h/w revID where
2526 	   relevant.
2527 	*/
2528 
2529 	switch (rev) {
2530 	case 8: /* original eprom */
2531 		strcpy(card->driver, "RME9636");
2532 		if (rme9652->hw_rev == 15) {
2533 			rme9652->card_name = "RME Digi9636 (Rev 1.5)";
2534 		} else {
2535 			rme9652->card_name = "RME Digi9636";
2536 		}
2537 		rme9652->ss_channels = RME9636_NCHANNELS;
2538 		break;
2539 	case 9: /* W36_G EPROM */
2540 		strcpy(card->driver, "RME9636");
2541 		rme9652->card_name = "RME Digi9636 (Rev G)";
2542 		rme9652->ss_channels = RME9636_NCHANNELS;
2543 		break;
2544 	case 4: /* W52_G EPROM */
2545 		strcpy(card->driver, "RME9652");
2546 		rme9652->card_name = "RME Digi9652 (Rev G)";
2547 		rme9652->ss_channels = RME9652_NCHANNELS;
2548 		break;
2549 	case 3: /* original eprom */
2550 		strcpy(card->driver, "RME9652");
2551 		if (rme9652->hw_rev == 15) {
2552 			rme9652->card_name = "RME Digi9652 (Rev 1.5)";
2553 		} else {
2554 			rme9652->card_name = "RME Digi9652";
2555 		}
2556 		rme9652->ss_channels = RME9652_NCHANNELS;
2557 		break;
2558 	}
2559 
2560 	rme9652->ds_channels = (rme9652->ss_channels - 2) / 2 + 2;
2561 
2562 	pci_set_master(rme9652->pci);
2563 
2564 	if ((err = snd_rme9652_initialize_memory(rme9652)) < 0) {
2565 		return err;
2566 	}
2567 
2568 	if ((err = snd_rme9652_create_pcm(card, rme9652)) < 0) {
2569 		return err;
2570 	}
2571 
2572 	if ((err = snd_rme9652_create_controls(card, rme9652)) < 0) {
2573 		return err;
2574 	}
2575 
2576 	snd_rme9652_proc_init(rme9652);
2577 
2578 	rme9652->last_spdif_sample_rate = -1;
2579 	rme9652->last_adat_sample_rate = -1;
2580 	rme9652->playback_pid = -1;
2581 	rme9652->capture_pid = -1;
2582 	rme9652->capture_substream = NULL;
2583 	rme9652->playback_substream = NULL;
2584 
2585 	snd_rme9652_set_defaults(rme9652);
2586 
2587 	if (rme9652->hw_rev == 15) {
2588 		rme9652_initialize_spdif_receiver (rme9652);
2589 	}
2590 
2591 	return 0;
2592 }
2593 
2594 static void snd_rme9652_card_free(struct snd_card *card)
2595 {
2596 	struct snd_rme9652 *rme9652 = (struct snd_rme9652 *) card->private_data;
2597 
2598 	if (rme9652)
2599 		snd_rme9652_free(rme9652);
2600 }
2601 
2602 static int __devinit snd_rme9652_probe(struct pci_dev *pci,
2603 				       const struct pci_device_id *pci_id)
2604 {
2605 	static int dev;
2606 	struct snd_rme9652 *rme9652;
2607 	struct snd_card *card;
2608 	int err;
2609 
2610 	if (dev >= SNDRV_CARDS)
2611 		return -ENODEV;
2612 	if (!enable[dev]) {
2613 		dev++;
2614 		return -ENOENT;
2615 	}
2616 
2617 	card = snd_card_new(index[dev], id[dev], THIS_MODULE,
2618 			    sizeof(struct snd_rme9652));
2619 
2620 	if (!card)
2621 		return -ENOMEM;
2622 
2623 	rme9652 = (struct snd_rme9652 *) card->private_data;
2624 	card->private_free = snd_rme9652_card_free;
2625 	rme9652->dev = dev;
2626 	rme9652->pci = pci;
2627 	snd_card_set_dev(card, &pci->dev);
2628 
2629 	if ((err = snd_rme9652_create(card, rme9652, precise_ptr[dev])) < 0) {
2630 		snd_card_free(card);
2631 		return err;
2632 	}
2633 
2634 	strcpy(card->shortname, rme9652->card_name);
2635 
2636 	sprintf(card->longname, "%s at 0x%lx, irq %d",
2637 		card->shortname, rme9652->port, rme9652->irq);
2638 
2639 
2640 	if ((err = snd_card_register(card)) < 0) {
2641 		snd_card_free(card);
2642 		return err;
2643 	}
2644 	pci_set_drvdata(pci, card);
2645 	dev++;
2646 	return 0;
2647 }
2648 
2649 static void __devexit snd_rme9652_remove(struct pci_dev *pci)
2650 {
2651 	snd_card_free(pci_get_drvdata(pci));
2652 	pci_set_drvdata(pci, NULL);
2653 }
2654 
2655 static struct pci_driver driver = {
2656 	.name	  = "RME Digi9652 (Hammerfall)",
2657 	.id_table = snd_rme9652_ids,
2658 	.probe	  = snd_rme9652_probe,
2659 	.remove	  = __devexit_p(snd_rme9652_remove),
2660 };
2661 
2662 static int __init alsa_card_hammerfall_init(void)
2663 {
2664 	return pci_register_driver(&driver);
2665 }
2666 
2667 static void __exit alsa_card_hammerfall_exit(void)
2668 {
2669 	pci_unregister_driver(&driver);
2670 }
2671 
2672 module_init(alsa_card_hammerfall_init)
2673 module_exit(alsa_card_hammerfall_exit)
2674