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Merge tag 'locks-v3.16-2' of git://git.samba.org/jlayton/linux
[linux/fpc-iii.git] / sound / pci / emu10k1 / emu10k1x.c
blobefe0175269771b0c674cc854bbe5e1896ef9e6b8
1 /*
2 * Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
3 * Driver EMU10K1X chips
4 *
5 * Parts of this code were adapted from audigyls.c driver which is
6 * Copyright (c) by James Courtier-Dutton <James@superbug.demon.co.uk>
7 *
8 * BUGS:
9 * --
10 *
11 * TODO:
12 *
13 * Chips (SB0200 model):
14 * - EMU10K1X-DBQ
15 * - STAC 9708T
16 *
17 * This program is free software; you can redistribute it and/or modify
18 * it under the terms of the GNU General Public License as published by
19 * the Free Software Foundation; either version 2 of the License, or
20 * (at your option) any later version.
21 *
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
26 *
27 * You should have received a copy of the GNU General Public License
28 * along with this program; if not, write to the Free Software
29 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30 *
31 */
32 #include <linux/init.h>
33 #include <linux/interrupt.h>
34 #include <linux/pci.h>
35 #include <linux/dma-mapping.h>
36 #include <linux/slab.h>
37 #include <linux/module.h>
38 #include <sound/core.h>
39 #include <sound/initval.h>
40 #include <sound/pcm.h>
41 #include <sound/ac97_codec.h>
42 #include <sound/info.h>
43 #include <sound/rawmidi.h>
44
45 MODULE_AUTHOR("Francisco Moraes <fmoraes@nc.rr.com>");
46 MODULE_DESCRIPTION("EMU10K1X");
47 MODULE_LICENSE("GPL");
48 MODULE_SUPPORTED_DEVICE("{{Dell Creative Labs,SB Live!}");
49
50 // module parameters (see "Module Parameters")
51 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
52 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
53 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
54
55 module_param_array(index, int, NULL, 0444);
56 MODULE_PARM_DESC(index, "Index value for the EMU10K1X soundcard.");
57 module_param_array(id, charp, NULL, 0444);
58 MODULE_PARM_DESC(id, "ID string for the EMU10K1X soundcard.");
59 module_param_array(enable, bool, NULL, 0444);
60 MODULE_PARM_DESC(enable, "Enable the EMU10K1X soundcard.");
61
62
63 // some definitions were borrowed from emu10k1 driver as they seem to be the same
64 /************************************************************************************************/
65 /* PCI function 0 registers, address = <val> + PCIBASE0 */
66 /************************************************************************************************/
67
68 #define PTR 0x00 /* Indexed register set pointer register */
69 /* NOTE: The CHANNELNUM and ADDRESS words can */
70 /* be modified independently of each other. */
71
72 #define DATA 0x04 /* Indexed register set data register */
73
74 #define IPR 0x08 /* Global interrupt pending register */
75 /* Clear pending interrupts by writing a 1 to */
76 /* the relevant bits and zero to the other bits */
77 #define IPR_MIDITRANSBUFEMPTY 0x00000001 /* MIDI UART transmit buffer empty */
78 #define IPR_MIDIRECVBUFEMPTY 0x00000002 /* MIDI UART receive buffer empty */
79 #define IPR_CH_0_LOOP 0x00000800 /* Channel 0 loop */
80 #define IPR_CH_0_HALF_LOOP 0x00000100 /* Channel 0 half loop */
81 #define IPR_CAP_0_LOOP 0x00080000 /* Channel capture loop */
82 #define IPR_CAP_0_HALF_LOOP 0x00010000 /* Channel capture half loop */
83
84 #define INTE 0x0c /* Interrupt enable register */
85 #define INTE_MIDITXENABLE 0x00000001 /* Enable MIDI transmit-buffer-empty interrupts */
86 #define INTE_MIDIRXENABLE 0x00000002 /* Enable MIDI receive-buffer-empty interrupts */
87 #define INTE_CH_0_LOOP 0x00000800 /* Channel 0 loop */
88 #define INTE_CH_0_HALF_LOOP 0x00000100 /* Channel 0 half loop */
89 #define INTE_CAP_0_LOOP 0x00080000 /* Channel capture loop */
90 #define INTE_CAP_0_HALF_LOOP 0x00010000 /* Channel capture half loop */
91
92 #define HCFG 0x14 /* Hardware config register */
93
94 #define HCFG_LOCKSOUNDCACHE 0x00000008 /* 1 = Cancel bustmaster accesses to soundcache */
95 /* NOTE: This should generally never be used. */
96 #define HCFG_AUDIOENABLE 0x00000001 /* 0 = CODECs transmit zero-valued samples */
97 /* Should be set to 1 when the EMU10K1 is */
98 /* completely initialized. */
99 #define GPIO 0x18 /* Defaults: 00001080-Analog, 00001000-SPDIF. */
100
101
102 #define AC97DATA 0x1c /* AC97 register set data register (16 bit) */
103
104 #define AC97ADDRESS 0x1e /* AC97 register set address register (8 bit) */
105
106 /********************************************************************************************************/
107 /* Emu10k1x pointer-offset register set, accessed through the PTR and DATA registers */
108 /********************************************************************************************************/
109 #define PLAYBACK_LIST_ADDR 0x00 /* Base DMA address of a list of pointers to each period/size */
110 /* One list entry: 4 bytes for DMA address,
111 * 4 bytes for period_size << 16.
112 * One list entry is 8 bytes long.
113 * One list entry for each period in the buffer.
114 */
115 #define PLAYBACK_LIST_SIZE 0x01 /* Size of list in bytes << 16. E.g. 8 periods -> 0x00380000 */
116 #define PLAYBACK_LIST_PTR 0x02 /* Pointer to the current period being played */
117 #define PLAYBACK_DMA_ADDR 0x04 /* Playback DMA address */
118 #define PLAYBACK_PERIOD_SIZE 0x05 /* Playback period size */
119 #define PLAYBACK_POINTER 0x06 /* Playback period pointer. Sample currently in DAC */
120 #define PLAYBACK_UNKNOWN1 0x07
121 #define PLAYBACK_UNKNOWN2 0x08
122
123 /* Only one capture channel supported */
124 #define CAPTURE_DMA_ADDR 0x10 /* Capture DMA address */
125 #define CAPTURE_BUFFER_SIZE 0x11 /* Capture buffer size */
126 #define CAPTURE_POINTER 0x12 /* Capture buffer pointer. Sample currently in ADC */
127 #define CAPTURE_UNKNOWN 0x13
128
129 /* From 0x20 - 0x3f, last samples played on each channel */
130
131 #define TRIGGER_CHANNEL 0x40 /* Trigger channel playback */
132 #define TRIGGER_CHANNEL_0 0x00000001 /* Trigger channel 0 */
133 #define TRIGGER_CHANNEL_1 0x00000002 /* Trigger channel 1 */
134 #define TRIGGER_CHANNEL_2 0x00000004 /* Trigger channel 2 */
135 #define TRIGGER_CAPTURE 0x00000100 /* Trigger capture channel */
136
137 #define ROUTING 0x41 /* Setup sound routing ? */
138 #define ROUTING_FRONT_LEFT 0x00000001
139 #define ROUTING_FRONT_RIGHT 0x00000002
140 #define ROUTING_REAR_LEFT 0x00000004
141 #define ROUTING_REAR_RIGHT 0x00000008
142 #define ROUTING_CENTER_LFE 0x00010000
143
144 #define SPCS0 0x42 /* SPDIF output Channel Status 0 register */
145
146 #define SPCS1 0x43 /* SPDIF output Channel Status 1 register */
147
148 #define SPCS2 0x44 /* SPDIF output Channel Status 2 register */
149
150 #define SPCS_CLKACCYMASK 0x30000000 /* Clock accuracy */
151 #define SPCS_CLKACCY_1000PPM 0x00000000 /* 1000 parts per million */
152 #define SPCS_CLKACCY_50PPM 0x10000000 /* 50 parts per million */
153 #define SPCS_CLKACCY_VARIABLE 0x20000000 /* Variable accuracy */
154 #define SPCS_SAMPLERATEMASK 0x0f000000 /* Sample rate */
155 #define SPCS_SAMPLERATE_44 0x00000000 /* 44.1kHz sample rate */
156 #define SPCS_SAMPLERATE_48 0x02000000 /* 48kHz sample rate */
157 #define SPCS_SAMPLERATE_32 0x03000000 /* 32kHz sample rate */
158 #define SPCS_CHANNELNUMMASK 0x00f00000 /* Channel number */
159 #define SPCS_CHANNELNUM_UNSPEC 0x00000000 /* Unspecified channel number */
160 #define SPCS_CHANNELNUM_LEFT 0x00100000 /* Left channel */
161 #define SPCS_CHANNELNUM_RIGHT 0x00200000 /* Right channel */
162 #define SPCS_SOURCENUMMASK 0x000f0000 /* Source number */
163 #define SPCS_SOURCENUM_UNSPEC 0x00000000 /* Unspecified source number */
164 #define SPCS_GENERATIONSTATUS 0x00008000 /* Originality flag (see IEC-958 spec) */
165 #define SPCS_CATEGORYCODEMASK 0x00007f00 /* Category code (see IEC-958 spec) */
166 #define SPCS_MODEMASK 0x000000c0 /* Mode (see IEC-958 spec) */
167 #define SPCS_EMPHASISMASK 0x00000038 /* Emphasis */
168 #define SPCS_EMPHASIS_NONE 0x00000000 /* No emphasis */
169 #define SPCS_EMPHASIS_50_15 0x00000008 /* 50/15 usec 2 channel */
170 #define SPCS_COPYRIGHT 0x00000004 /* Copyright asserted flag -- do not modify */
171 #define SPCS_NOTAUDIODATA 0x00000002 /* 0 = Digital audio, 1 = not audio */
172 #define SPCS_PROFESSIONAL 0x00000001 /* 0 = Consumer (IEC-958), 1 = pro (AES3-1992) */
173
174 #define SPDIF_SELECT 0x45 /* Enables SPDIF or Analogue outputs 0-Analogue, 0x700-SPDIF */
175
176 /* This is the MPU port on the card */
177 #define MUDATA 0x47
178 #define MUCMD 0x48
179 #define MUSTAT MUCMD
180
181 /* From 0x50 - 0x5f, last samples captured */
182
183 /**
184 * The hardware has 3 channels for playback and 1 for capture.
185 * - channel 0 is the front channel
186 * - channel 1 is the rear channel
187 * - channel 2 is the center/lfe channel
188 * Volume is controlled by the AC97 for the front and rear channels by
189 * the PCM Playback Volume, Sigmatel Surround Playback Volume and
190 * Surround Playback Volume. The Sigmatel 4-Speaker Stereo switch affects
191 * the front/rear channel mixing in the REAR OUT jack. When using the
192 * 4-Speaker Stereo, both front and rear channels will be mixed in the
193 * REAR OUT.
194 * The center/lfe channel has no volume control and cannot be muted during
195 * playback.
196 */
197
198 struct emu10k1x_voice {
199 struct emu10k1x *emu;
200 int number;
201 int use;
202
203 struct emu10k1x_pcm *epcm;
204 };
205
206 struct emu10k1x_pcm {
207 struct emu10k1x *emu;
208 struct snd_pcm_substream *substream;
209 struct emu10k1x_voice *voice;
210 unsigned short running;
211 };
212
213 struct emu10k1x_midi {
214 struct emu10k1x *emu;
215 struct snd_rawmidi *rmidi;
216 struct snd_rawmidi_substream *substream_input;
217 struct snd_rawmidi_substream *substream_output;
218 unsigned int midi_mode;
219 spinlock_t input_lock;
220 spinlock_t output_lock;
221 spinlock_t open_lock;
222 int tx_enable, rx_enable;
223 int port;
224 int ipr_tx, ipr_rx;
225 void (*interrupt)(struct emu10k1x *emu, unsigned int status);
226 };
227
228 // definition of the chip-specific record
229 struct emu10k1x {
230 struct snd_card *card;
231 struct pci_dev *pci;
232
233 unsigned long port;
234 struct resource *res_port;
235 int irq;
236
237 unsigned char revision; /* chip revision */
238 unsigned int serial; /* serial number */
239 unsigned short model; /* subsystem id */
240
241 spinlock_t emu_lock;
242 spinlock_t voice_lock;
243
244 struct snd_ac97 *ac97;
245 struct snd_pcm *pcm;
246
247 struct emu10k1x_voice voices[3];
248 struct emu10k1x_voice capture_voice;
249 u32 spdif_bits[3]; // SPDIF out setup
250
251 struct snd_dma_buffer dma_buffer;
252
253 struct emu10k1x_midi midi;
254 };
255
256 /* hardware definition */
257 static struct snd_pcm_hardware snd_emu10k1x_playback_hw = {
258 .info = (SNDRV_PCM_INFO_MMAP |
259 SNDRV_PCM_INFO_INTERLEAVED |
260 SNDRV_PCM_INFO_BLOCK_TRANSFER |
261 SNDRV_PCM_INFO_MMAP_VALID),
262 .formats = SNDRV_PCM_FMTBIT_S16_LE,
263 .rates = SNDRV_PCM_RATE_48000,
264 .rate_min = 48000,
265 .rate_max = 48000,
266 .channels_min = 2,
267 .channels_max = 2,
268 .buffer_bytes_max = (32*1024),
269 .period_bytes_min = 64,
270 .period_bytes_max = (16*1024),
271 .periods_min = 2,
272 .periods_max = 8,
273 .fifo_size = 0,
274 };
275
276 static struct snd_pcm_hardware snd_emu10k1x_capture_hw = {
277 .info = (SNDRV_PCM_INFO_MMAP |
278 SNDRV_PCM_INFO_INTERLEAVED |
279 SNDRV_PCM_INFO_BLOCK_TRANSFER |
280 SNDRV_PCM_INFO_MMAP_VALID),
281 .formats = SNDRV_PCM_FMTBIT_S16_LE,
282 .rates = SNDRV_PCM_RATE_48000,
283 .rate_min = 48000,
284 .rate_max = 48000,
285 .channels_min = 2,
286 .channels_max = 2,
287 .buffer_bytes_max = (32*1024),
288 .period_bytes_min = 64,
289 .period_bytes_max = (16*1024),
290 .periods_min = 2,
291 .periods_max = 2,
292 .fifo_size = 0,
293 };
294
295 static unsigned int snd_emu10k1x_ptr_read(struct emu10k1x * emu,
296 unsigned int reg,
297 unsigned int chn)
298 {
299 unsigned long flags;
300 unsigned int regptr, val;
301
302 regptr = (reg << 16) | chn;
303
304 spin_lock_irqsave(&emu->emu_lock, flags);
305 outl(regptr, emu->port + PTR);
306 val = inl(emu->port + DATA);
307 spin_unlock_irqrestore(&emu->emu_lock, flags);
308 return val;
309 }
310
311 static void snd_emu10k1x_ptr_write(struct emu10k1x *emu,
312 unsigned int reg,
313 unsigned int chn,
314 unsigned int data)
315 {
316 unsigned int regptr;
317 unsigned long flags;
318
319 regptr = (reg << 16) | chn;
320
321 spin_lock_irqsave(&emu->emu_lock, flags);
322 outl(regptr, emu->port + PTR);
323 outl(data, emu->port + DATA);
324 spin_unlock_irqrestore(&emu->emu_lock, flags);
325 }
326
327 static void snd_emu10k1x_intr_enable(struct emu10k1x *emu, unsigned int intrenb)
328 {
329 unsigned long flags;
330 unsigned int intr_enable;
331
332 spin_lock_irqsave(&emu->emu_lock, flags);
333 intr_enable = inl(emu->port + INTE) | intrenb;
334 outl(intr_enable, emu->port + INTE);
335 spin_unlock_irqrestore(&emu->emu_lock, flags);
336 }
337
338 static void snd_emu10k1x_intr_disable(struct emu10k1x *emu, unsigned int intrenb)
339 {
340 unsigned long flags;
341 unsigned int intr_enable;
342
343 spin_lock_irqsave(&emu->emu_lock, flags);
344 intr_enable = inl(emu->port + INTE) & ~intrenb;
345 outl(intr_enable, emu->port + INTE);
346 spin_unlock_irqrestore(&emu->emu_lock, flags);
347 }
348
349 static void snd_emu10k1x_gpio_write(struct emu10k1x *emu, unsigned int value)
350 {
351 unsigned long flags;
352
353 spin_lock_irqsave(&emu->emu_lock, flags);
354 outl(value, emu->port + GPIO);
355 spin_unlock_irqrestore(&emu->emu_lock, flags);
356 }
357
358 static void snd_emu10k1x_pcm_free_substream(struct snd_pcm_runtime *runtime)
359 {
360 kfree(runtime->private_data);
361 }
362
363 static void snd_emu10k1x_pcm_interrupt(struct emu10k1x *emu, struct emu10k1x_voice *voice)
364 {
365 struct emu10k1x_pcm *epcm;
366
367 if ((epcm = voice->epcm) == NULL)
368 return;
369 if (epcm->substream == NULL)
370 return;
371 #if 0
372 dev_info(emu->card->dev,
373 "IRQ: position = 0x%x, period = 0x%x, size = 0x%x\n",
374 epcm->substream->ops->pointer(epcm->substream),
375 snd_pcm_lib_period_bytes(epcm->substream),
376 snd_pcm_lib_buffer_bytes(epcm->substream));
377 #endif
378 snd_pcm_period_elapsed(epcm->substream);
379 }
380
381 /* open callback */
382 static int snd_emu10k1x_playback_open(struct snd_pcm_substream *substream)
383 {
384 struct emu10k1x *chip = snd_pcm_substream_chip(substream);
385 struct emu10k1x_pcm *epcm;
386 struct snd_pcm_runtime *runtime = substream->runtime;
387 int err;
388
389 if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) {
390 return err;
391 }
392 if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
393 return err;
394
395 epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
396 if (epcm == NULL)
397 return -ENOMEM;
398 epcm->emu = chip;
399 epcm->substream = substream;
400
401 runtime->private_data = epcm;
402 runtime->private_free = snd_emu10k1x_pcm_free_substream;
403
404 runtime->hw = snd_emu10k1x_playback_hw;
405
406 return 0;
407 }
408
409 /* close callback */
410 static int snd_emu10k1x_playback_close(struct snd_pcm_substream *substream)
411 {
412 return 0;
413 }
414
415 /* hw_params callback */
416 static int snd_emu10k1x_pcm_hw_params(struct snd_pcm_substream *substream,
417 struct snd_pcm_hw_params *hw_params)
418 {
419 struct snd_pcm_runtime *runtime = substream->runtime;
420 struct emu10k1x_pcm *epcm = runtime->private_data;
421
422 if (! epcm->voice) {
423 epcm->voice = &epcm->emu->voices[substream->pcm->device];
424 epcm->voice->use = 1;
425 epcm->voice->epcm = epcm;
426 }
427
428 return snd_pcm_lib_malloc_pages(substream,
429 params_buffer_bytes(hw_params));
430 }
431
432 /* hw_free callback */
433 static int snd_emu10k1x_pcm_hw_free(struct snd_pcm_substream *substream)
434 {
435 struct snd_pcm_runtime *runtime = substream->runtime;
436 struct emu10k1x_pcm *epcm;
437
438 if (runtime->private_data == NULL)
439 return 0;
440
441 epcm = runtime->private_data;
442
443 if (epcm->voice) {
444 epcm->voice->use = 0;
445 epcm->voice->epcm = NULL;
446 epcm->voice = NULL;
447 }
448
449 return snd_pcm_lib_free_pages(substream);
450 }
451
452 /* prepare callback */
453 static int snd_emu10k1x_pcm_prepare(struct snd_pcm_substream *substream)
454 {
455 struct emu10k1x *emu = snd_pcm_substream_chip(substream);
456 struct snd_pcm_runtime *runtime = substream->runtime;
457 struct emu10k1x_pcm *epcm = runtime->private_data;
458 int voice = epcm->voice->number;
459 u32 *table_base = (u32 *)(emu->dma_buffer.area+1024*voice);
460 u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
461 int i;
462
463 for(i = 0; i < runtime->periods; i++) {
464 *table_base++=runtime->dma_addr+(i*period_size_bytes);
465 *table_base++=period_size_bytes<<16;
466 }
467
468 snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_ADDR, voice, emu->dma_buffer.addr+1024*voice);
469 snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_SIZE, voice, (runtime->periods - 1) << 19);
470 snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_PTR, voice, 0);
471 snd_emu10k1x_ptr_write(emu, PLAYBACK_POINTER, voice, 0);
472 snd_emu10k1x_ptr_write(emu, PLAYBACK_UNKNOWN1, voice, 0);
473 snd_emu10k1x_ptr_write(emu, PLAYBACK_UNKNOWN2, voice, 0);
474 snd_emu10k1x_ptr_write(emu, PLAYBACK_DMA_ADDR, voice, runtime->dma_addr);
475
476 snd_emu10k1x_ptr_write(emu, PLAYBACK_PERIOD_SIZE, voice, frames_to_bytes(runtime, runtime->period_size)<<16);
477
478 return 0;
479 }
480
481 /* trigger callback */
482 static int snd_emu10k1x_pcm_trigger(struct snd_pcm_substream *substream,
483 int cmd)
484 {
485 struct emu10k1x *emu = snd_pcm_substream_chip(substream);
486 struct snd_pcm_runtime *runtime = substream->runtime;
487 struct emu10k1x_pcm *epcm = runtime->private_data;
488 int channel = epcm->voice->number;
489 int result = 0;
490
491 /*
492 dev_dbg(emu->card->dev,
493 "trigger - emu10k1x = 0x%x, cmd = %i, pointer = %d\n",
494 (int)emu, cmd, (int)substream->ops->pointer(substream));
495 */
496
497 switch (cmd) {
498 case SNDRV_PCM_TRIGGER_START:
499 if(runtime->periods == 2)
500 snd_emu10k1x_intr_enable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel);
501 else
502 snd_emu10k1x_intr_enable(emu, INTE_CH_0_LOOP << channel);
503 epcm->running = 1;
504 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|(TRIGGER_CHANNEL_0<<channel));
505 break;
506 case SNDRV_PCM_TRIGGER_STOP:
507 epcm->running = 0;
508 snd_emu10k1x_intr_disable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel);
509 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CHANNEL_0<<channel));
510 break;
511 default:
512 result = -EINVAL;
513 break;
514 }
515 return result;
516 }
517
518 /* pointer callback */
519 static snd_pcm_uframes_t
520 snd_emu10k1x_pcm_pointer(struct snd_pcm_substream *substream)
521 {
522 struct emu10k1x *emu = snd_pcm_substream_chip(substream);
523 struct snd_pcm_runtime *runtime = substream->runtime;
524 struct emu10k1x_pcm *epcm = runtime->private_data;
525 int channel = epcm->voice->number;
526 snd_pcm_uframes_t ptr = 0, ptr1 = 0, ptr2= 0,ptr3 = 0,ptr4 = 0;
527
528 if (!epcm->running)
529 return 0;
530
531 ptr3 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
532 ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel);
533 ptr4 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
534
535 if(ptr4 == 0 && ptr1 == frames_to_bytes(runtime, runtime->buffer_size))
536 return 0;
537
538 if (ptr3 != ptr4)
539 ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel);
540 ptr2 = bytes_to_frames(runtime, ptr1);
541 ptr2 += (ptr4 >> 3) * runtime->period_size;
542 ptr = ptr2;
543
544 if (ptr >= runtime->buffer_size)
545 ptr -= runtime->buffer_size;
546
547 return ptr;
548 }
549
550 /* operators */
551 static struct snd_pcm_ops snd_emu10k1x_playback_ops = {
552 .open = snd_emu10k1x_playback_open,
553 .close = snd_emu10k1x_playback_close,
554 .ioctl = snd_pcm_lib_ioctl,
555 .hw_params = snd_emu10k1x_pcm_hw_params,
556 .hw_free = snd_emu10k1x_pcm_hw_free,
557 .prepare = snd_emu10k1x_pcm_prepare,
558 .trigger = snd_emu10k1x_pcm_trigger,
559 .pointer = snd_emu10k1x_pcm_pointer,
560 };
561
562 /* open_capture callback */
563 static int snd_emu10k1x_pcm_open_capture(struct snd_pcm_substream *substream)
564 {
565 struct emu10k1x *chip = snd_pcm_substream_chip(substream);
566 struct emu10k1x_pcm *epcm;
567 struct snd_pcm_runtime *runtime = substream->runtime;
568 int err;
569
570 if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
571 return err;
572 if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
573 return err;
574
575 epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
576 if (epcm == NULL)
577 return -ENOMEM;
578
579 epcm->emu = chip;
580 epcm->substream = substream;
581
582 runtime->private_data = epcm;
583 runtime->private_free = snd_emu10k1x_pcm_free_substream;
584
585 runtime->hw = snd_emu10k1x_capture_hw;
586
587 return 0;
588 }
589
590 /* close callback */
591 static int snd_emu10k1x_pcm_close_capture(struct snd_pcm_substream *substream)
592 {
593 return 0;
594 }
595
596 /* hw_params callback */
597 static int snd_emu10k1x_pcm_hw_params_capture(struct snd_pcm_substream *substream,
598 struct snd_pcm_hw_params *hw_params)
599 {
600 struct snd_pcm_runtime *runtime = substream->runtime;
601 struct emu10k1x_pcm *epcm = runtime->private_data;
602
603 if (! epcm->voice) {
604 if (epcm->emu->capture_voice.use)
605 return -EBUSY;
606 epcm->voice = &epcm->emu->capture_voice;
607 epcm->voice->epcm = epcm;
608 epcm->voice->use = 1;
609 }
610
611 return snd_pcm_lib_malloc_pages(substream,
612 params_buffer_bytes(hw_params));
613 }
614
615 /* hw_free callback */
616 static int snd_emu10k1x_pcm_hw_free_capture(struct snd_pcm_substream *substream)
617 {
618 struct snd_pcm_runtime *runtime = substream->runtime;
619
620 struct emu10k1x_pcm *epcm;
621
622 if (runtime->private_data == NULL)
623 return 0;
624 epcm = runtime->private_data;
625
626 if (epcm->voice) {
627 epcm->voice->use = 0;
628 epcm->voice->epcm = NULL;
629 epcm->voice = NULL;
630 }
631
632 return snd_pcm_lib_free_pages(substream);
633 }
634
635 /* prepare capture callback */
636 static int snd_emu10k1x_pcm_prepare_capture(struct snd_pcm_substream *substream)
637 {
638 struct emu10k1x *emu = snd_pcm_substream_chip(substream);
639 struct snd_pcm_runtime *runtime = substream->runtime;
640
641 snd_emu10k1x_ptr_write(emu, CAPTURE_DMA_ADDR, 0, runtime->dma_addr);
642 snd_emu10k1x_ptr_write(emu, CAPTURE_BUFFER_SIZE, 0, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
643 snd_emu10k1x_ptr_write(emu, CAPTURE_POINTER, 0, 0);
644 snd_emu10k1x_ptr_write(emu, CAPTURE_UNKNOWN, 0, 0);
645
646 return 0;
647 }
648
649 /* trigger_capture callback */
650 static int snd_emu10k1x_pcm_trigger_capture(struct snd_pcm_substream *substream,
651 int cmd)
652 {
653 struct emu10k1x *emu = snd_pcm_substream_chip(substream);
654 struct snd_pcm_runtime *runtime = substream->runtime;
655 struct emu10k1x_pcm *epcm = runtime->private_data;
656 int result = 0;
657
658 switch (cmd) {
659 case SNDRV_PCM_TRIGGER_START:
660 snd_emu10k1x_intr_enable(emu, INTE_CAP_0_LOOP |
661 INTE_CAP_0_HALF_LOOP);
662 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|TRIGGER_CAPTURE);
663 epcm->running = 1;
664 break;
665 case SNDRV_PCM_TRIGGER_STOP:
666 epcm->running = 0;
667 snd_emu10k1x_intr_disable(emu, INTE_CAP_0_LOOP |
668 INTE_CAP_0_HALF_LOOP);
669 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CAPTURE));
670 break;
671 default:
672 result = -EINVAL;
673 break;
674 }
675 return result;
676 }
677
678 /* pointer_capture callback */
679 static snd_pcm_uframes_t
680 snd_emu10k1x_pcm_pointer_capture(struct snd_pcm_substream *substream)
681 {
682 struct emu10k1x *emu = snd_pcm_substream_chip(substream);
683 struct snd_pcm_runtime *runtime = substream->runtime;
684 struct emu10k1x_pcm *epcm = runtime->private_data;
685 snd_pcm_uframes_t ptr;
686
687 if (!epcm->running)
688 return 0;
689
690 ptr = bytes_to_frames(runtime, snd_emu10k1x_ptr_read(emu, CAPTURE_POINTER, 0));
691 if (ptr >= runtime->buffer_size)
692 ptr -= runtime->buffer_size;
693
694 return ptr;
695 }
696
697 static struct snd_pcm_ops snd_emu10k1x_capture_ops = {
698 .open = snd_emu10k1x_pcm_open_capture,
699 .close = snd_emu10k1x_pcm_close_capture,
700 .ioctl = snd_pcm_lib_ioctl,
701 .hw_params = snd_emu10k1x_pcm_hw_params_capture,
702 .hw_free = snd_emu10k1x_pcm_hw_free_capture,
703 .prepare = snd_emu10k1x_pcm_prepare_capture,
704 .trigger = snd_emu10k1x_pcm_trigger_capture,
705 .pointer = snd_emu10k1x_pcm_pointer_capture,
706 };
707
708 static unsigned short snd_emu10k1x_ac97_read(struct snd_ac97 *ac97,
709 unsigned short reg)
710 {
711 struct emu10k1x *emu = ac97->private_data;
712 unsigned long flags;
713 unsigned short val;
714
715 spin_lock_irqsave(&emu->emu_lock, flags);
716 outb(reg, emu->port + AC97ADDRESS);
717 val = inw(emu->port + AC97DATA);
718 spin_unlock_irqrestore(&emu->emu_lock, flags);
719 return val;
720 }
721
722 static void snd_emu10k1x_ac97_write(struct snd_ac97 *ac97,
723 unsigned short reg, unsigned short val)
724 {
725 struct emu10k1x *emu = ac97->private_data;
726 unsigned long flags;
727
728 spin_lock_irqsave(&emu->emu_lock, flags);
729 outb(reg, emu->port + AC97ADDRESS);
730 outw(val, emu->port + AC97DATA);
731 spin_unlock_irqrestore(&emu->emu_lock, flags);
732 }
733
734 static int snd_emu10k1x_ac97(struct emu10k1x *chip)
735 {
736 struct snd_ac97_bus *pbus;
737 struct snd_ac97_template ac97;
738 int err;
739 static struct snd_ac97_bus_ops ops = {
740 .write = snd_emu10k1x_ac97_write,
741 .read = snd_emu10k1x_ac97_read,
742 };
743
744 if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
745 return err;
746 pbus->no_vra = 1; /* we don't need VRA */
747
748 memset(&ac97, 0, sizeof(ac97));
749 ac97.private_data = chip;
750 ac97.scaps = AC97_SCAP_NO_SPDIF;
751 return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
752 }
753
754 static int snd_emu10k1x_free(struct emu10k1x *chip)
755 {
756 snd_emu10k1x_ptr_write(chip, TRIGGER_CHANNEL, 0, 0);
757 // disable interrupts
758 outl(0, chip->port + INTE);
759 // disable audio
760 outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG);
761
762 /* release the irq */
763 if (chip->irq >= 0)
764 free_irq(chip->irq, chip);
765
766 // release the i/o port
767 release_and_free_resource(chip->res_port);
768
769 // release the DMA
770 if (chip->dma_buffer.area) {
771 snd_dma_free_pages(&chip->dma_buffer);
772 }
773
774 pci_disable_device(chip->pci);
775
776 // release the data
777 kfree(chip);
778 return 0;
779 }
780
781 static int snd_emu10k1x_dev_free(struct snd_device *device)
782 {
783 struct emu10k1x *chip = device->device_data;
784 return snd_emu10k1x_free(chip);
785 }
786
787 static irqreturn_t snd_emu10k1x_interrupt(int irq, void *dev_id)
788 {
789 unsigned int status;
790
791 struct emu10k1x *chip = dev_id;
792 struct emu10k1x_voice *pvoice = chip->voices;
793 int i;
794 int mask;
795
796 status = inl(chip->port + IPR);
797
798 if (! status)
799 return IRQ_NONE;
800
801 // capture interrupt
802 if (status & (IPR_CAP_0_LOOP | IPR_CAP_0_HALF_LOOP)) {
803 struct emu10k1x_voice *cap_voice = &chip->capture_voice;
804 if (cap_voice->use)
805 snd_emu10k1x_pcm_interrupt(chip, cap_voice);
806 else
807 snd_emu10k1x_intr_disable(chip,
808 INTE_CAP_0_LOOP |
809 INTE_CAP_0_HALF_LOOP);
810 }
811
812 mask = IPR_CH_0_LOOP|IPR_CH_0_HALF_LOOP;
813 for (i = 0; i < 3; i++) {
814 if (status & mask) {
815 if (pvoice->use)
816 snd_emu10k1x_pcm_interrupt(chip, pvoice);
817 else
818 snd_emu10k1x_intr_disable(chip, mask);
819 }
820 pvoice++;
821 mask <<= 1;
822 }
823
824 if (status & (IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY)) {
825 if (chip->midi.interrupt)
826 chip->midi.interrupt(chip, status);
827 else
828 snd_emu10k1x_intr_disable(chip, INTE_MIDITXENABLE|INTE_MIDIRXENABLE);
829 }
830
831 // acknowledge the interrupt if necessary
832 outl(status, chip->port + IPR);
833
834 /* dev_dbg(chip->card->dev, "interrupt %08x\n", status); */
835 return IRQ_HANDLED;
836 }
837
838 static const struct snd_pcm_chmap_elem surround_map[] = {
839 { .channels = 2,
840 .map = { SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
841 { }
842 };
843
844 static const struct snd_pcm_chmap_elem clfe_map[] = {
845 { .channels = 2,
846 .map = { SNDRV_CHMAP_FC, SNDRV_CHMAP_LFE } },
847 { }
848 };
849
850 static int snd_emu10k1x_pcm(struct emu10k1x *emu, int device, struct snd_pcm **rpcm)
851 {
852 struct snd_pcm *pcm;
853 const struct snd_pcm_chmap_elem *map = NULL;
854 int err;
855 int capture = 0;
856
857 if (rpcm)
858 *rpcm = NULL;
859 if (device == 0)
860 capture = 1;
861
862 if ((err = snd_pcm_new(emu->card, "emu10k1x", device, 1, capture, &pcm)) < 0)
863 return err;
864
865 pcm->private_data = emu;
866
867 switch(device) {
868 case 0:
869 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops);
870 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1x_capture_ops);
871 break;
872 case 1:
873 case 2:
874 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops);
875 break;
876 }
877
878 pcm->info_flags = 0;
879 switch(device) {
880 case 0:
881 strcpy(pcm->name, "EMU10K1X Front");
882 map = snd_pcm_std_chmaps;
883 break;
884 case 1:
885 strcpy(pcm->name, "EMU10K1X Rear");
886 map = surround_map;
887 break;
888 case 2:
889 strcpy(pcm->name, "EMU10K1X Center/LFE");
890 map = clfe_map;
891 break;
892 }
893 emu->pcm = pcm;
894
895 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
896 snd_dma_pci_data(emu->pci),
897 32*1024, 32*1024);
898
899 err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, map, 2,
900 1 << 2, NULL);
901 if (err < 0)
902 return err;
903
904 if (rpcm)
905 *rpcm = pcm;
906
907 return 0;
908 }
909
910 static int snd_emu10k1x_create(struct snd_card *card,
911 struct pci_dev *pci,
912 struct emu10k1x **rchip)
913 {
914 struct emu10k1x *chip;
915 int err;
916 int ch;
917 static struct snd_device_ops ops = {
918 .dev_free = snd_emu10k1x_dev_free,
919 };
920
921 *rchip = NULL;
922
923 if ((err = pci_enable_device(pci)) < 0)
924 return err;
925 if (pci_set_dma_mask(pci, DMA_BIT_MASK(28)) < 0 ||
926 pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(28)) < 0) {
927 dev_err(card->dev, "error to set 28bit mask DMA\n");
928 pci_disable_device(pci);
929 return -ENXIO;
930 }
931
932 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
933 if (chip == NULL) {
934 pci_disable_device(pci);
935 return -ENOMEM;
936 }
937
938 chip->card = card;
939 chip->pci = pci;
940 chip->irq = -1;
941
942 spin_lock_init(&chip->emu_lock);
943 spin_lock_init(&chip->voice_lock);
944
945 chip->port = pci_resource_start(pci, 0);
946 if ((chip->res_port = request_region(chip->port, 8,
947 "EMU10K1X")) == NULL) {
948 dev_err(card->dev, "cannot allocate the port 0x%lx\n",
949 chip->port);
950 snd_emu10k1x_free(chip);
951 return -EBUSY;
952 }
953
954 if (request_irq(pci->irq, snd_emu10k1x_interrupt,
955 IRQF_SHARED, KBUILD_MODNAME, chip)) {
956 dev_err(card->dev, "cannot grab irq %d\n", pci->irq);
957 snd_emu10k1x_free(chip);
958 return -EBUSY;
959 }
960 chip->irq = pci->irq;
961
962 if(snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
963 4 * 1024, &chip->dma_buffer) < 0) {
964 snd_emu10k1x_free(chip);
965 return -ENOMEM;
966 }
967
968 pci_set_master(pci);
969 /* read revision & serial */
970 chip->revision = pci->revision;
971 pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
972 pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
973 dev_info(card->dev, "Model %04x Rev %08x Serial %08x\n", chip->model,
974 chip->revision, chip->serial);
975
976 outl(0, chip->port + INTE);
977
978 for(ch = 0; ch < 3; ch++) {
979 chip->voices[ch].emu = chip;
980 chip->voices[ch].number = ch;
981 }
982
983 /*
984 * Init to 0x02109204 :
985 * Clock accuracy = 0 (1000ppm)
986 * Sample Rate = 2 (48kHz)
987 * Audio Channel = 1 (Left of 2)
988 * Source Number = 0 (Unspecified)
989 * Generation Status = 1 (Original for Cat Code 12)
990 * Cat Code = 12 (Digital Signal Mixer)
991 * Mode = 0 (Mode 0)
992 * Emphasis = 0 (None)
993 * CP = 1 (Copyright unasserted)
994 * AN = 0 (Audio data)
995 * P = 0 (Consumer)
996 */
997 snd_emu10k1x_ptr_write(chip, SPCS0, 0,
998 chip->spdif_bits[0] =
999 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1000 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1001 SPCS_GENERATIONSTATUS | 0x00001200 |
1002 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1003 snd_emu10k1x_ptr_write(chip, SPCS1, 0,
1004 chip->spdif_bits[1] =
1005 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1006 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1007 SPCS_GENERATIONSTATUS | 0x00001200 |
1008 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1009 snd_emu10k1x_ptr_write(chip, SPCS2, 0,
1010 chip->spdif_bits[2] =
1011 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
1012 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
1013 SPCS_GENERATIONSTATUS | 0x00001200 |
1014 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
1015
1016 snd_emu10k1x_ptr_write(chip, SPDIF_SELECT, 0, 0x700); // disable SPDIF
1017 snd_emu10k1x_ptr_write(chip, ROUTING, 0, 0x1003F); // routing
1018 snd_emu10k1x_gpio_write(chip, 0x1080); // analog mode
1019
1020 outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG);
1021
1022 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
1023 chip, &ops)) < 0) {
1024 snd_emu10k1x_free(chip);
1025 return err;
1026 }
1027 *rchip = chip;
1028 return 0;
1029 }
1030
1031 static void snd_emu10k1x_proc_reg_read(struct snd_info_entry *entry,
1032 struct snd_info_buffer *buffer)
1033 {
1034 struct emu10k1x *emu = entry->private_data;
1035 unsigned long value,value1,value2;
1036 unsigned long flags;
1037 int i;
1038
1039 snd_iprintf(buffer, "Registers:\n\n");
1040 for(i = 0; i < 0x20; i+=4) {
1041 spin_lock_irqsave(&emu->emu_lock, flags);
1042 value = inl(emu->port + i);
1043 spin_unlock_irqrestore(&emu->emu_lock, flags);
1044 snd_iprintf(buffer, "Register %02X: %08lX\n", i, value);
1045 }
1046 snd_iprintf(buffer, "\nRegisters\n\n");
1047 for(i = 0; i <= 0x48; i++) {
1048 value = snd_emu10k1x_ptr_read(emu, i, 0);
1049 if(i < 0x10 || (i >= 0x20 && i < 0x40)) {
1050 value1 = snd_emu10k1x_ptr_read(emu, i, 1);
1051 value2 = snd_emu10k1x_ptr_read(emu, i, 2);
1052 snd_iprintf(buffer, "%02X: %08lX %08lX %08lX\n", i, value, value1, value2);
1053 } else {
1054 snd_iprintf(buffer, "%02X: %08lX\n", i, value);
1055 }
1056 }
1057 }
1058
1059 static void snd_emu10k1x_proc_reg_write(struct snd_info_entry *entry,
1060 struct snd_info_buffer *buffer)
1061 {
1062 struct emu10k1x *emu = entry->private_data;
1063 char line[64];
1064 unsigned int reg, channel_id , val;
1065
1066 while (!snd_info_get_line(buffer, line, sizeof(line))) {
1067 if (sscanf(line, "%x %x %x", &reg, &channel_id, &val) != 3)
1068 continue;
1069
1070 if (reg < 0x49 && val <= 0xffffffff && channel_id <= 2)
1071 snd_emu10k1x_ptr_write(emu, reg, channel_id, val);
1072 }
1073 }
1074
1075 static int snd_emu10k1x_proc_init(struct emu10k1x *emu)
1076 {
1077 struct snd_info_entry *entry;
1078
1079 if(! snd_card_proc_new(emu->card, "emu10k1x_regs", &entry)) {
1080 snd_info_set_text_ops(entry, emu, snd_emu10k1x_proc_reg_read);
1081 entry->c.text.write = snd_emu10k1x_proc_reg_write;
1082 entry->mode |= S_IWUSR;
1083 entry->private_data = emu;
1084 }
1085
1086 return 0;
1087 }
1088
1089 #define snd_emu10k1x_shared_spdif_info snd_ctl_boolean_mono_info
1090
1091 static int snd_emu10k1x_shared_spdif_get(struct snd_kcontrol *kcontrol,
1092 struct snd_ctl_elem_value *ucontrol)
1093 {
1094 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
1095
1096 ucontrol->value.integer.value[0] = (snd_emu10k1x_ptr_read(emu, SPDIF_SELECT, 0) == 0x700) ? 0 : 1;
1097
1098 return 0;
1099 }
1100
1101 static int snd_emu10k1x_shared_spdif_put(struct snd_kcontrol *kcontrol,
1102 struct snd_ctl_elem_value *ucontrol)
1103 {
1104 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
1105 unsigned int val;
1106 int change = 0;
1107
1108 val = ucontrol->value.integer.value[0] ;
1109
1110 if (val) {
1111 // enable spdif output
1112 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x000);
1113 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x700);
1114 snd_emu10k1x_gpio_write(emu, 0x1000);
1115 } else {
1116 // disable spdif output
1117 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x700);
1118 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x1003F);
1119 snd_emu10k1x_gpio_write(emu, 0x1080);
1120 }
1121 return change;
1122 }
1123
1124 static struct snd_kcontrol_new snd_emu10k1x_shared_spdif =
1125 {
1126 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1127 .name = "Analog/Digital Output Jack",
1128 .info = snd_emu10k1x_shared_spdif_info,
1129 .get = snd_emu10k1x_shared_spdif_get,
1130 .put = snd_emu10k1x_shared_spdif_put
1131 };
1132
1133 static int snd_emu10k1x_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1134 {
1135 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1136 uinfo->count = 1;
1137 return 0;
1138 }
1139
1140 static int snd_emu10k1x_spdif_get(struct snd_kcontrol *kcontrol,
1141 struct snd_ctl_elem_value *ucontrol)
1142 {
1143 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
1144 unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
1145
1146 ucontrol->value.iec958.status[0] = (emu->spdif_bits[idx] >> 0) & 0xff;
1147 ucontrol->value.iec958.status[1] = (emu->spdif_bits[idx] >> 8) & 0xff;
1148 ucontrol->value.iec958.status[2] = (emu->spdif_bits[idx] >> 16) & 0xff;
1149 ucontrol->value.iec958.status[3] = (emu->spdif_bits[idx] >> 24) & 0xff;
1150 return 0;
1151 }
1152
1153 static int snd_emu10k1x_spdif_get_mask(struct snd_kcontrol *kcontrol,
1154 struct snd_ctl_elem_value *ucontrol)
1155 {
1156 ucontrol->value.iec958.status[0] = 0xff;
1157 ucontrol->value.iec958.status[1] = 0xff;
1158 ucontrol->value.iec958.status[2] = 0xff;
1159 ucontrol->value.iec958.status[3] = 0xff;
1160 return 0;
1161 }
1162
1163 static int snd_emu10k1x_spdif_put(struct snd_kcontrol *kcontrol,
1164 struct snd_ctl_elem_value *ucontrol)
1165 {
1166 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
1167 unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
1168 int change;
1169 unsigned int val;
1170
1171 val = (ucontrol->value.iec958.status[0] << 0) |
1172 (ucontrol->value.iec958.status[1] << 8) |
1173 (ucontrol->value.iec958.status[2] << 16) |
1174 (ucontrol->value.iec958.status[3] << 24);
1175 change = val != emu->spdif_bits[idx];
1176 if (change) {
1177 snd_emu10k1x_ptr_write(emu, SPCS0 + idx, 0, val);
1178 emu->spdif_bits[idx] = val;
1179 }
1180 return change;
1181 }
1182
1183 static struct snd_kcontrol_new snd_emu10k1x_spdif_mask_control =
1184 {
1185 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1186 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1187 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
1188 .count = 3,
1189 .info = snd_emu10k1x_spdif_info,
1190 .get = snd_emu10k1x_spdif_get_mask
1191 };
1192
1193 static struct snd_kcontrol_new snd_emu10k1x_spdif_control =
1194 {
1195 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1196 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1197 .count = 3,
1198 .info = snd_emu10k1x_spdif_info,
1199 .get = snd_emu10k1x_spdif_get,
1200 .put = snd_emu10k1x_spdif_put
1201 };
1202
1203 static int snd_emu10k1x_mixer(struct emu10k1x *emu)
1204 {
1205 int err;
1206 struct snd_kcontrol *kctl;
1207 struct snd_card *card = emu->card;
1208
1209 if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_mask_control, emu)) == NULL)
1210 return -ENOMEM;
1211 if ((err = snd_ctl_add(card, kctl)))
1212 return err;
1213 if ((kctl = snd_ctl_new1(&snd_emu10k1x_shared_spdif, emu)) == NULL)
1214 return -ENOMEM;
1215 if ((err = snd_ctl_add(card, kctl)))
1216 return err;
1217 if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_control, emu)) == NULL)
1218 return -ENOMEM;
1219 if ((err = snd_ctl_add(card, kctl)))
1220 return err;
1221
1222 return 0;
1223 }
1224
1225 #define EMU10K1X_MIDI_MODE_INPUT (1<<0)
1226 #define EMU10K1X_MIDI_MODE_OUTPUT (1<<1)
1227
1228 static inline unsigned char mpu401_read(struct emu10k1x *emu, struct emu10k1x_midi *mpu, int idx)
1229 {
1230 return (unsigned char)snd_emu10k1x_ptr_read(emu, mpu->port + idx, 0);
1231 }
1232
1233 static inline void mpu401_write(struct emu10k1x *emu, struct emu10k1x_midi *mpu, int data, int idx)
1234 {
1235 snd_emu10k1x_ptr_write(emu, mpu->port + idx, 0, data);
1236 }
1237
1238 #define mpu401_write_data(emu, mpu, data) mpu401_write(emu, mpu, data, 0)
1239 #define mpu401_write_cmd(emu, mpu, data) mpu401_write(emu, mpu, data, 1)
1240 #define mpu401_read_data(emu, mpu) mpu401_read(emu, mpu, 0)
1241 #define mpu401_read_stat(emu, mpu) mpu401_read(emu, mpu, 1)
1242
1243 #define mpu401_input_avail(emu,mpu) (!(mpu401_read_stat(emu,mpu) & 0x80))
1244 #define mpu401_output_ready(emu,mpu) (!(mpu401_read_stat(emu,mpu) & 0x40))
1245
1246 #define MPU401_RESET 0xff
1247 #define MPU401_ENTER_UART 0x3f
1248 #define MPU401_ACK 0xfe
1249
1250 static void mpu401_clear_rx(struct emu10k1x *emu, struct emu10k1x_midi *mpu)
1251 {
1252 int timeout = 100000;
1253 for (; timeout > 0 && mpu401_input_avail(emu, mpu); timeout--)
1254 mpu401_read_data(emu, mpu);
1255 #ifdef CONFIG_SND_DEBUG
1256 if (timeout <= 0)
1257 dev_err(emu->card->dev,
1258 "cmd: clear rx timeout (status = 0x%x)\n",
1259 mpu401_read_stat(emu, mpu));
1260 #endif
1261 }
1262
1263 /*
1264
1265 */
1266
1267 static void do_emu10k1x_midi_interrupt(struct emu10k1x *emu,
1268 struct emu10k1x_midi *midi, unsigned int status)
1269 {
1270 unsigned char byte;
1271
1272 if (midi->rmidi == NULL) {
1273 snd_emu10k1x_intr_disable(emu, midi->tx_enable | midi->rx_enable);
1274 return;
1275 }
1276
1277 spin_lock(&midi->input_lock);
1278 if ((status & midi->ipr_rx) && mpu401_input_avail(emu, midi)) {
1279 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1280 mpu401_clear_rx(emu, midi);
1281 } else {
1282 byte = mpu401_read_data(emu, midi);
1283 if (midi->substream_input)
1284 snd_rawmidi_receive(midi->substream_input, &byte, 1);
1285 }
1286 }
1287 spin_unlock(&midi->input_lock);
1288
1289 spin_lock(&midi->output_lock);
1290 if ((status & midi->ipr_tx) && mpu401_output_ready(emu, midi)) {
1291 if (midi->substream_output &&
1292 snd_rawmidi_transmit(midi->substream_output, &byte, 1) == 1) {
1293 mpu401_write_data(emu, midi, byte);
1294 } else {
1295 snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1296 }
1297 }
1298 spin_unlock(&midi->output_lock);
1299 }
1300
1301 static void snd_emu10k1x_midi_interrupt(struct emu10k1x *emu, unsigned int status)
1302 {
1303 do_emu10k1x_midi_interrupt(emu, &emu->midi, status);
1304 }
1305
1306 static int snd_emu10k1x_midi_cmd(struct emu10k1x * emu,
1307 struct emu10k1x_midi *midi, unsigned char cmd, int ack)
1308 {
1309 unsigned long flags;
1310 int timeout, ok;
1311
1312 spin_lock_irqsave(&midi->input_lock, flags);
1313 mpu401_write_data(emu, midi, 0x00);
1314 /* mpu401_clear_rx(emu, midi); */
1315
1316 mpu401_write_cmd(emu, midi, cmd);
1317 if (ack) {
1318 ok = 0;
1319 timeout = 10000;
1320 while (!ok && timeout-- > 0) {
1321 if (mpu401_input_avail(emu, midi)) {
1322 if (mpu401_read_data(emu, midi) == MPU401_ACK)
1323 ok = 1;
1324 }
1325 }
1326 if (!ok && mpu401_read_data(emu, midi) == MPU401_ACK)
1327 ok = 1;
1328 } else {
1329 ok = 1;
1330 }
1331 spin_unlock_irqrestore(&midi->input_lock, flags);
1332 if (!ok) {
1333 dev_err(emu->card->dev,
1334 "midi_cmd: 0x%x failed at 0x%lx (status = 0x%x, data = 0x%x)!!!\n",
1335 cmd, emu->port,
1336 mpu401_read_stat(emu, midi),
1337 mpu401_read_data(emu, midi));
1338 return 1;
1339 }
1340 return 0;
1341 }
1342
1343 static int snd_emu10k1x_midi_input_open(struct snd_rawmidi_substream *substream)
1344 {
1345 struct emu10k1x *emu;
1346 struct emu10k1x_midi *midi = substream->rmidi->private_data;
1347 unsigned long flags;
1348
1349 emu = midi->emu;
1350 if (snd_BUG_ON(!emu))
1351 return -ENXIO;
1352 spin_lock_irqsave(&midi->open_lock, flags);
1353 midi->midi_mode |= EMU10K1X_MIDI_MODE_INPUT;
1354 midi->substream_input = substream;
1355 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) {
1356 spin_unlock_irqrestore(&midi->open_lock, flags);
1357 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1))
1358 goto error_out;
1359 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1))
1360 goto error_out;
1361 } else {
1362 spin_unlock_irqrestore(&midi->open_lock, flags);
1363 }
1364 return 0;
1365
1366 error_out:
1367 return -EIO;
1368 }
1369
1370 static int snd_emu10k1x_midi_output_open(struct snd_rawmidi_substream *substream)
1371 {
1372 struct emu10k1x *emu;
1373 struct emu10k1x_midi *midi = substream->rmidi->private_data;
1374 unsigned long flags;
1375
1376 emu = midi->emu;
1377 if (snd_BUG_ON(!emu))
1378 return -ENXIO;
1379 spin_lock_irqsave(&midi->open_lock, flags);
1380 midi->midi_mode |= EMU10K1X_MIDI_MODE_OUTPUT;
1381 midi->substream_output = substream;
1382 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1383 spin_unlock_irqrestore(&midi->open_lock, flags);
1384 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1))
1385 goto error_out;
1386 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1))
1387 goto error_out;
1388 } else {
1389 spin_unlock_irqrestore(&midi->open_lock, flags);
1390 }
1391 return 0;
1392
1393 error_out:
1394 return -EIO;
1395 }
1396
1397 static int snd_emu10k1x_midi_input_close(struct snd_rawmidi_substream *substream)
1398 {
1399 struct emu10k1x *emu;
1400 struct emu10k1x_midi *midi = substream->rmidi->private_data;
1401 unsigned long flags;
1402 int err = 0;
1403
1404 emu = midi->emu;
1405 if (snd_BUG_ON(!emu))
1406 return -ENXIO;
1407 spin_lock_irqsave(&midi->open_lock, flags);
1408 snd_emu10k1x_intr_disable(emu, midi->rx_enable);
1409 midi->midi_mode &= ~EMU10K1X_MIDI_MODE_INPUT;
1410 midi->substream_input = NULL;
1411 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) {
1412 spin_unlock_irqrestore(&midi->open_lock, flags);
1413 err = snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0);
1414 } else {
1415 spin_unlock_irqrestore(&midi->open_lock, flags);
1416 }
1417 return err;
1418 }
1419
1420 static int snd_emu10k1x_midi_output_close(struct snd_rawmidi_substream *substream)
1421 {
1422 struct emu10k1x *emu;
1423 struct emu10k1x_midi *midi = substream->rmidi->private_data;
1424 unsigned long flags;
1425 int err = 0;
1426
1427 emu = midi->emu;
1428 if (snd_BUG_ON(!emu))
1429 return -ENXIO;
1430 spin_lock_irqsave(&midi->open_lock, flags);
1431 snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1432 midi->midi_mode &= ~EMU10K1X_MIDI_MODE_OUTPUT;
1433 midi->substream_output = NULL;
1434 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1435 spin_unlock_irqrestore(&midi->open_lock, flags);
1436 err = snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0);
1437 } else {
1438 spin_unlock_irqrestore(&midi->open_lock, flags);
1439 }
1440 return err;
1441 }
1442
1443 static void snd_emu10k1x_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
1444 {
1445 struct emu10k1x *emu;
1446 struct emu10k1x_midi *midi = substream->rmidi->private_data;
1447 emu = midi->emu;
1448 if (snd_BUG_ON(!emu))
1449 return;
1450
1451 if (up)
1452 snd_emu10k1x_intr_enable(emu, midi->rx_enable);
1453 else
1454 snd_emu10k1x_intr_disable(emu, midi->rx_enable);
1455 }
1456
1457 static void snd_emu10k1x_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
1458 {
1459 struct emu10k1x *emu;
1460 struct emu10k1x_midi *midi = substream->rmidi->private_data;
1461 unsigned long flags;
1462
1463 emu = midi->emu;
1464 if (snd_BUG_ON(!emu))
1465 return;
1466
1467 if (up) {
1468 int max = 4;
1469 unsigned char byte;
1470
1471 /* try to send some amount of bytes here before interrupts */
1472 spin_lock_irqsave(&midi->output_lock, flags);
1473 while (max > 0) {
1474 if (mpu401_output_ready(emu, midi)) {
1475 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT) ||
1476 snd_rawmidi_transmit(substream, &byte, 1) != 1) {
1477 /* no more data */
1478 spin_unlock_irqrestore(&midi->output_lock, flags);
1479 return;
1480 }
1481 mpu401_write_data(emu, midi, byte);
1482 max--;
1483 } else {
1484 break;
1485 }
1486 }
1487 spin_unlock_irqrestore(&midi->output_lock, flags);
1488 snd_emu10k1x_intr_enable(emu, midi->tx_enable);
1489 } else {
1490 snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1491 }
1492 }
1493
1494 /*
1495
1496 */
1497
1498 static struct snd_rawmidi_ops snd_emu10k1x_midi_output =
1499 {
1500 .open = snd_emu10k1x_midi_output_open,
1501 .close = snd_emu10k1x_midi_output_close,
1502 .trigger = snd_emu10k1x_midi_output_trigger,
1503 };
1504
1505 static struct snd_rawmidi_ops snd_emu10k1x_midi_input =
1506 {
1507 .open = snd_emu10k1x_midi_input_open,
1508 .close = snd_emu10k1x_midi_input_close,
1509 .trigger = snd_emu10k1x_midi_input_trigger,
1510 };
1511
1512 static void snd_emu10k1x_midi_free(struct snd_rawmidi *rmidi)
1513 {
1514 struct emu10k1x_midi *midi = rmidi->private_data;
1515 midi->interrupt = NULL;
1516 midi->rmidi = NULL;
1517 }
1518
1519 static int emu10k1x_midi_init(struct emu10k1x *emu,
1520 struct emu10k1x_midi *midi, int device,
1521 char *name)
1522 {
1523 struct snd_rawmidi *rmidi;
1524 int err;
1525
1526 if ((err = snd_rawmidi_new(emu->card, name, device, 1, 1, &rmidi)) < 0)
1527 return err;
1528 midi->emu = emu;
1529 spin_lock_init(&midi->open_lock);
1530 spin_lock_init(&midi->input_lock);
1531 spin_lock_init(&midi->output_lock);
1532 strcpy(rmidi->name, name);
1533 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_emu10k1x_midi_output);
1534 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_emu10k1x_midi_input);
1535 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT |
1536 SNDRV_RAWMIDI_INFO_INPUT |
1537 SNDRV_RAWMIDI_INFO_DUPLEX;
1538 rmidi->private_data = midi;
1539 rmidi->private_free = snd_emu10k1x_midi_free;
1540 midi->rmidi = rmidi;
1541 return 0;
1542 }
1543
1544 static int snd_emu10k1x_midi(struct emu10k1x *emu)
1545 {
1546 struct emu10k1x_midi *midi = &emu->midi;
1547 int err;
1548
1549 if ((err = emu10k1x_midi_init(emu, midi, 0, "EMU10K1X MPU-401 (UART)")) < 0)
1550 return err;
1551
1552 midi->tx_enable = INTE_MIDITXENABLE;
1553 midi->rx_enable = INTE_MIDIRXENABLE;
1554 midi->port = MUDATA;
1555 midi->ipr_tx = IPR_MIDITRANSBUFEMPTY;
1556 midi->ipr_rx = IPR_MIDIRECVBUFEMPTY;
1557 midi->interrupt = snd_emu10k1x_midi_interrupt;
1558 return 0;
1559 }
1560
1561 static int snd_emu10k1x_probe(struct pci_dev *pci,
1562 const struct pci_device_id *pci_id)
1563 {
1564 static int dev;
1565 struct snd_card *card;
1566 struct emu10k1x *chip;
1567 int err;
1568
1569 if (dev >= SNDRV_CARDS)
1570 return -ENODEV;
1571 if (!enable[dev]) {
1572 dev++;
1573 return -ENOENT;
1574 }
1575
1576 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1577 0, &card);
1578 if (err < 0)
1579 return err;
1580
1581 if ((err = snd_emu10k1x_create(card, pci, &chip)) < 0) {
1582 snd_card_free(card);
1583 return err;
1584 }
1585
1586 if ((err = snd_emu10k1x_pcm(chip, 0, NULL)) < 0) {
1587 snd_card_free(card);
1588 return err;
1589 }
1590 if ((err = snd_emu10k1x_pcm(chip, 1, NULL)) < 0) {
1591 snd_card_free(card);
1592 return err;
1593 }
1594 if ((err = snd_emu10k1x_pcm(chip, 2, NULL)) < 0) {
1595 snd_card_free(card);
1596 return err;
1597 }
1598
1599 if ((err = snd_emu10k1x_ac97(chip)) < 0) {
1600 snd_card_free(card);
1601 return err;
1602 }
1603
1604 if ((err = snd_emu10k1x_mixer(chip)) < 0) {
1605 snd_card_free(card);
1606 return err;
1607 }
1608
1609 if ((err = snd_emu10k1x_midi(chip)) < 0) {
1610 snd_card_free(card);
1611 return err;
1612 }
1613
1614 snd_emu10k1x_proc_init(chip);
1615
1616 strcpy(card->driver, "EMU10K1X");
1617 strcpy(card->shortname, "Dell Sound Blaster Live!");
1618 sprintf(card->longname, "%s at 0x%lx irq %i",
1619 card->shortname, chip->port, chip->irq);
1620
1621 if ((err = snd_card_register(card)) < 0) {
1622 snd_card_free(card);
1623 return err;
1624 }
1625
1626 pci_set_drvdata(pci, card);
1627 dev++;
1628 return 0;
1629 }
1630
1631 static void snd_emu10k1x_remove(struct pci_dev *pci)
1632 {
1633 snd_card_free(pci_get_drvdata(pci));
1634 }
1635
1636 // PCI IDs
1637 static DEFINE_PCI_DEVICE_TABLE(snd_emu10k1x_ids) = {
1638 { PCI_VDEVICE(CREATIVE, 0x0006), 0 }, /* Dell OEM version (EMU10K1) */
1639 { 0, }
1640 };
1641 MODULE_DEVICE_TABLE(pci, snd_emu10k1x_ids);
1642
1643 // pci_driver definition
1644 static struct pci_driver emu10k1x_driver = {
1645 .name = KBUILD_MODNAME,
1646 .id_table = snd_emu10k1x_ids,
1647 .probe = snd_emu10k1x_probe,
1648 .remove = snd_emu10k1x_remove,
1649 };
1650
1651 module_pci_driver(emu10k1x_driver);
Linux with added FPC-III support