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Linux-2.6.12-rc2
[thirdparty/kernel/stable.git] / sound / pci / emu10k1 / emu10k1x.c
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 <sound/driver.h>
33 #include <linux/init.h>
34 #include <linux/interrupt.h>
35 #include <linux/pci.h>
36 #include <linux/slab.h>
37 #include <linux/moduleparam.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 int 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 addresss */
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 chanel
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 typedef struct snd_emu10k1x_voice emu10k1x_voice_t;
199 typedef struct snd_emu10k1x emu10k1x_t;
200 typedef struct snd_emu10k1x_pcm emu10k1x_pcm_t;
201
202 struct snd_emu10k1x_voice {
203 emu10k1x_t *emu;
204 int number;
205 int use;
206
207 emu10k1x_pcm_t *epcm;
208 };
209
210 struct snd_emu10k1x_pcm {
211 emu10k1x_t *emu;
212 snd_pcm_substream_t *substream;
213 emu10k1x_voice_t *voice;
214 unsigned short running;
215 };
216
217 typedef struct {
218 struct snd_emu10k1x *emu;
219 snd_rawmidi_t *rmidi;
220 snd_rawmidi_substream_t *substream_input;
221 snd_rawmidi_substream_t *substream_output;
222 unsigned int midi_mode;
223 spinlock_t input_lock;
224 spinlock_t output_lock;
225 spinlock_t open_lock;
226 int tx_enable, rx_enable;
227 int port;
228 int ipr_tx, ipr_rx;
229 void (*interrupt)(emu10k1x_t *emu, unsigned int status);
230 } emu10k1x_midi_t;
231
232 // definition of the chip-specific record
233 struct snd_emu10k1x {
234 snd_card_t *card;
235 struct pci_dev *pci;
236
237 unsigned long port;
238 struct resource *res_port;
239 int irq;
240
241 unsigned int revision; /* chip revision */
242 unsigned int serial; /* serial number */
243 unsigned short model; /* subsystem id */
244
245 spinlock_t emu_lock;
246 spinlock_t voice_lock;
247
248 ac97_t *ac97;
249 snd_pcm_t *pcm;
250
251 emu10k1x_voice_t voices[3];
252 emu10k1x_voice_t capture_voice;
253 u32 spdif_bits[3]; // SPDIF out setup
254
255 struct snd_dma_buffer dma_buffer;
256
257 emu10k1x_midi_t midi;
258 };
259
260 /* hardware definition */
261 static snd_pcm_hardware_t snd_emu10k1x_playback_hw = {
262 .info = (SNDRV_PCM_INFO_MMAP |
263 SNDRV_PCM_INFO_INTERLEAVED |
264 SNDRV_PCM_INFO_BLOCK_TRANSFER |
265 SNDRV_PCM_INFO_MMAP_VALID),
266 .formats = SNDRV_PCM_FMTBIT_S16_LE,
267 .rates = SNDRV_PCM_RATE_48000,
268 .rate_min = 48000,
269 .rate_max = 48000,
270 .channels_min = 2,
271 .channels_max = 2,
272 .buffer_bytes_max = (32*1024),
273 .period_bytes_min = 64,
274 .period_bytes_max = (16*1024),
275 .periods_min = 2,
276 .periods_max = 8,
277 .fifo_size = 0,
278 };
279
280 static snd_pcm_hardware_t snd_emu10k1x_capture_hw = {
281 .info = (SNDRV_PCM_INFO_MMAP |
282 SNDRV_PCM_INFO_INTERLEAVED |
283 SNDRV_PCM_INFO_BLOCK_TRANSFER |
284 SNDRV_PCM_INFO_MMAP_VALID),
285 .formats = SNDRV_PCM_FMTBIT_S16_LE,
286 .rates = SNDRV_PCM_RATE_48000,
287 .rate_min = 48000,
288 .rate_max = 48000,
289 .channels_min = 2,
290 .channels_max = 2,
291 .buffer_bytes_max = (32*1024),
292 .period_bytes_min = 64,
293 .period_bytes_max = (16*1024),
294 .periods_min = 2,
295 .periods_max = 2,
296 .fifo_size = 0,
297 };
298
299 static unsigned int snd_emu10k1x_ptr_read(emu10k1x_t * emu,
300 unsigned int reg,
301 unsigned int chn)
302 {
303 unsigned long flags;
304 unsigned int regptr, val;
305
306 regptr = (reg << 16) | chn;
307
308 spin_lock_irqsave(&emu->emu_lock, flags);
309 outl(regptr, emu->port + PTR);
310 val = inl(emu->port + DATA);
311 spin_unlock_irqrestore(&emu->emu_lock, flags);
312 return val;
313 }
314
315 static void snd_emu10k1x_ptr_write(emu10k1x_t *emu,
316 unsigned int reg,
317 unsigned int chn,
318 unsigned int data)
319 {
320 unsigned int regptr;
321 unsigned long flags;
322
323 regptr = (reg << 16) | chn;
324
325 spin_lock_irqsave(&emu->emu_lock, flags);
326 outl(regptr, emu->port + PTR);
327 outl(data, emu->port + DATA);
328 spin_unlock_irqrestore(&emu->emu_lock, flags);
329 }
330
331 static void snd_emu10k1x_intr_enable(emu10k1x_t *emu, unsigned int intrenb)
332 {
333 unsigned long flags;
334 unsigned int enable;
335
336 spin_lock_irqsave(&emu->emu_lock, flags);
337 enable = inl(emu->port + INTE) | intrenb;
338 outl(enable, emu->port + INTE);
339 spin_unlock_irqrestore(&emu->emu_lock, flags);
340 }
341
342 static void snd_emu10k1x_intr_disable(emu10k1x_t *emu, unsigned int intrenb)
343 {
344 unsigned long flags;
345 unsigned int enable;
346
347 spin_lock_irqsave(&emu->emu_lock, flags);
348 enable = inl(emu->port + INTE) & ~intrenb;
349 outl(enable, emu->port + INTE);
350 spin_unlock_irqrestore(&emu->emu_lock, flags);
351 }
352
353 static void snd_emu10k1x_gpio_write(emu10k1x_t *emu, unsigned int value)
354 {
355 unsigned long flags;
356
357 spin_lock_irqsave(&emu->emu_lock, flags);
358 outl(value, emu->port + GPIO);
359 spin_unlock_irqrestore(&emu->emu_lock, flags);
360 }
361
362 static void snd_emu10k1x_pcm_free_substream(snd_pcm_runtime_t *runtime)
363 {
364 emu10k1x_pcm_t *epcm = runtime->private_data;
365
366 if (epcm)
367 kfree(epcm);
368 }
369
370 static void snd_emu10k1x_pcm_interrupt(emu10k1x_t *emu, emu10k1x_voice_t *voice)
371 {
372 emu10k1x_pcm_t *epcm;
373
374 if ((epcm = voice->epcm) == NULL)
375 return;
376 if (epcm->substream == NULL)
377 return;
378 #if 0
379 snd_printk(KERN_INFO "IRQ: position = 0x%x, period = 0x%x, size = 0x%x\n",
380 epcm->substream->ops->pointer(epcm->substream),
381 snd_pcm_lib_period_bytes(epcm->substream),
382 snd_pcm_lib_buffer_bytes(epcm->substream));
383 #endif
384 snd_pcm_period_elapsed(epcm->substream);
385 }
386
387 /* open callback */
388 static int snd_emu10k1x_playback_open(snd_pcm_substream_t *substream)
389 {
390 emu10k1x_t *chip = snd_pcm_substream_chip(substream);
391 emu10k1x_pcm_t *epcm;
392 snd_pcm_runtime_t *runtime = substream->runtime;
393 int err;
394
395 if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) {
396 return err;
397 }
398 if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
399 return err;
400
401 epcm = kcalloc(1, sizeof(*epcm), GFP_KERNEL);
402 if (epcm == NULL)
403 return -ENOMEM;
404 epcm->emu = chip;
405 epcm->substream = substream;
406
407 runtime->private_data = epcm;
408 runtime->private_free = snd_emu10k1x_pcm_free_substream;
409
410 runtime->hw = snd_emu10k1x_playback_hw;
411
412 return 0;
413 }
414
415 /* close callback */
416 static int snd_emu10k1x_playback_close(snd_pcm_substream_t *substream)
417 {
418 return 0;
419 }
420
421 /* hw_params callback */
422 static int snd_emu10k1x_pcm_hw_params(snd_pcm_substream_t *substream,
423 snd_pcm_hw_params_t * hw_params)
424 {
425 snd_pcm_runtime_t *runtime = substream->runtime;
426 emu10k1x_pcm_t *epcm = runtime->private_data;
427
428 if (! epcm->voice) {
429 epcm->voice = &epcm->emu->voices[substream->pcm->device];
430 epcm->voice->use = 1;
431 epcm->voice->epcm = epcm;
432 }
433
434 return snd_pcm_lib_malloc_pages(substream,
435 params_buffer_bytes(hw_params));
436 }
437
438 /* hw_free callback */
439 static int snd_emu10k1x_pcm_hw_free(snd_pcm_substream_t *substream)
440 {
441 snd_pcm_runtime_t *runtime = substream->runtime;
442 emu10k1x_pcm_t *epcm;
443
444 if (runtime->private_data == NULL)
445 return 0;
446
447 epcm = runtime->private_data;
448
449 if (epcm->voice) {
450 epcm->voice->use = 0;
451 epcm->voice->epcm = NULL;
452 epcm->voice = NULL;
453 }
454
455 return snd_pcm_lib_free_pages(substream);
456 }
457
458 /* prepare callback */
459 static int snd_emu10k1x_pcm_prepare(snd_pcm_substream_t *substream)
460 {
461 emu10k1x_t *emu = snd_pcm_substream_chip(substream);
462 snd_pcm_runtime_t *runtime = substream->runtime;
463 emu10k1x_pcm_t *epcm = runtime->private_data;
464 int voice = epcm->voice->number;
465 u32 *table_base = (u32 *)(emu->dma_buffer.area+1024*voice);
466 u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
467 int i;
468
469 for(i=0; i < runtime->periods; i++) {
470 *table_base++=runtime->dma_addr+(i*period_size_bytes);
471 *table_base++=period_size_bytes<<16;
472 }
473
474 snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_ADDR, voice, emu->dma_buffer.addr+1024*voice);
475 snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_SIZE, voice, (runtime->periods - 1) << 19);
476 snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_PTR, voice, 0);
477 snd_emu10k1x_ptr_write(emu, PLAYBACK_POINTER, voice, 0);
478 snd_emu10k1x_ptr_write(emu, PLAYBACK_UNKNOWN1, voice, 0);
479 snd_emu10k1x_ptr_write(emu, PLAYBACK_UNKNOWN2, voice, 0);
480 snd_emu10k1x_ptr_write(emu, PLAYBACK_DMA_ADDR, voice, runtime->dma_addr);
481
482 snd_emu10k1x_ptr_write(emu, PLAYBACK_PERIOD_SIZE, voice, frames_to_bytes(runtime, runtime->period_size)<<16);
483
484 return 0;
485 }
486
487 /* trigger callback */
488 static int snd_emu10k1x_pcm_trigger(snd_pcm_substream_t *substream,
489 int cmd)
490 {
491 emu10k1x_t *emu = snd_pcm_substream_chip(substream);
492 snd_pcm_runtime_t *runtime = substream->runtime;
493 emu10k1x_pcm_t *epcm = runtime->private_data;
494 int channel = epcm->voice->number;
495 int result = 0;
496
497 // snd_printk(KERN_INFO "trigger - emu10k1x = 0x%x, cmd = %i, pointer = %d\n", (int)emu, cmd, (int)substream->ops->pointer(substream));
498
499 switch (cmd) {
500 case SNDRV_PCM_TRIGGER_START:
501 if(runtime->periods == 2)
502 snd_emu10k1x_intr_enable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel);
503 else
504 snd_emu10k1x_intr_enable(emu, INTE_CH_0_LOOP << channel);
505 epcm->running = 1;
506 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|(TRIGGER_CHANNEL_0<<channel));
507 break;
508 case SNDRV_PCM_TRIGGER_STOP:
509 epcm->running = 0;
510 snd_emu10k1x_intr_disable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel);
511 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CHANNEL_0<<channel));
512 break;
513 default:
514 result = -EINVAL;
515 break;
516 }
517 return result;
518 }
519
520 /* pointer callback */
521 static snd_pcm_uframes_t
522 snd_emu10k1x_pcm_pointer(snd_pcm_substream_t *substream)
523 {
524 emu10k1x_t *emu = snd_pcm_substream_chip(substream);
525 snd_pcm_runtime_t *runtime = substream->runtime;
526 emu10k1x_pcm_t *epcm = runtime->private_data;
527 int channel = epcm->voice->number;
528 snd_pcm_uframes_t ptr = 0, ptr1 = 0, ptr2= 0,ptr3 = 0,ptr4 = 0;
529
530 if (!epcm->running)
531 return 0;
532
533 ptr3 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
534 ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel);
535 ptr4 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
536
537 if(ptr4 == 0 && ptr1 == frames_to_bytes(runtime, runtime->buffer_size))
538 return 0;
539
540 if (ptr3 != ptr4)
541 ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel);
542 ptr2 = bytes_to_frames(runtime, ptr1);
543 ptr2 += (ptr4 >> 3) * runtime->period_size;
544 ptr = ptr2;
545
546 if (ptr >= runtime->buffer_size)
547 ptr -= runtime->buffer_size;
548
549 return ptr;
550 }
551
552 /* operators */
553 static snd_pcm_ops_t snd_emu10k1x_playback_ops = {
554 .open = snd_emu10k1x_playback_open,
555 .close = snd_emu10k1x_playback_close,
556 .ioctl = snd_pcm_lib_ioctl,
557 .hw_params = snd_emu10k1x_pcm_hw_params,
558 .hw_free = snd_emu10k1x_pcm_hw_free,
559 .prepare = snd_emu10k1x_pcm_prepare,
560 .trigger = snd_emu10k1x_pcm_trigger,
561 .pointer = snd_emu10k1x_pcm_pointer,
562 };
563
564 /* open_capture callback */
565 static int snd_emu10k1x_pcm_open_capture(snd_pcm_substream_t *substream)
566 {
567 emu10k1x_t *chip = snd_pcm_substream_chip(substream);
568 emu10k1x_pcm_t *epcm;
569 snd_pcm_runtime_t *runtime = substream->runtime;
570 int err;
571
572 if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
573 return err;
574 if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
575 return err;
576
577 epcm = kcalloc(1, sizeof(*epcm), GFP_KERNEL);
578 if (epcm == NULL)
579 return -ENOMEM;
580
581 epcm->emu = chip;
582 epcm->substream = substream;
583
584 runtime->private_data = epcm;
585 runtime->private_free = snd_emu10k1x_pcm_free_substream;
586
587 runtime->hw = snd_emu10k1x_capture_hw;
588
589 return 0;
590 }
591
592 /* close callback */
593 static int snd_emu10k1x_pcm_close_capture(snd_pcm_substream_t *substream)
594 {
595 return 0;
596 }
597
598 /* hw_params callback */
599 static int snd_emu10k1x_pcm_hw_params_capture(snd_pcm_substream_t *substream,
600 snd_pcm_hw_params_t * hw_params)
601 {
602 snd_pcm_runtime_t *runtime = substream->runtime;
603 emu10k1x_pcm_t *epcm = runtime->private_data;
604
605 if (! epcm->voice) {
606 if (epcm->emu->capture_voice.use)
607 return -EBUSY;
608 epcm->voice = &epcm->emu->capture_voice;
609 epcm->voice->epcm = epcm;
610 epcm->voice->use = 1;
611 }
612
613 return snd_pcm_lib_malloc_pages(substream,
614 params_buffer_bytes(hw_params));
615 }
616
617 /* hw_free callback */
618 static int snd_emu10k1x_pcm_hw_free_capture(snd_pcm_substream_t *substream)
619 {
620 snd_pcm_runtime_t *runtime = substream->runtime;
621
622 emu10k1x_pcm_t *epcm;
623
624 if (runtime->private_data == NULL)
625 return 0;
626 epcm = runtime->private_data;
627
628 if (epcm->voice) {
629 epcm->voice->use = 0;
630 epcm->voice->epcm = NULL;
631 epcm->voice = NULL;
632 }
633
634 return snd_pcm_lib_free_pages(substream);
635 }
636
637 /* prepare capture callback */
638 static int snd_emu10k1x_pcm_prepare_capture(snd_pcm_substream_t *substream)
639 {
640 emu10k1x_t *emu = snd_pcm_substream_chip(substream);
641 snd_pcm_runtime_t *runtime = substream->runtime;
642
643 snd_emu10k1x_ptr_write(emu, CAPTURE_DMA_ADDR, 0, runtime->dma_addr);
644 snd_emu10k1x_ptr_write(emu, CAPTURE_BUFFER_SIZE, 0, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
645 snd_emu10k1x_ptr_write(emu, CAPTURE_POINTER, 0, 0);
646 snd_emu10k1x_ptr_write(emu, CAPTURE_UNKNOWN, 0, 0);
647
648 return 0;
649 }
650
651 /* trigger_capture callback */
652 static int snd_emu10k1x_pcm_trigger_capture(snd_pcm_substream_t *substream,
653 int cmd)
654 {
655 emu10k1x_t *emu = snd_pcm_substream_chip(substream);
656 snd_pcm_runtime_t *runtime = substream->runtime;
657 emu10k1x_pcm_t *epcm = runtime->private_data;
658 int result = 0;
659
660 switch (cmd) {
661 case SNDRV_PCM_TRIGGER_START:
662 snd_emu10k1x_intr_enable(emu, INTE_CAP_0_LOOP |
663 INTE_CAP_0_HALF_LOOP);
664 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|TRIGGER_CAPTURE);
665 epcm->running = 1;
666 break;
667 case SNDRV_PCM_TRIGGER_STOP:
668 epcm->running = 0;
669 snd_emu10k1x_intr_disable(emu, INTE_CAP_0_LOOP |
670 INTE_CAP_0_HALF_LOOP);
671 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CAPTURE));
672 break;
673 default:
674 result = -EINVAL;
675 break;
676 }
677 return result;
678 }
679
680 /* pointer_capture callback */
681 static snd_pcm_uframes_t
682 snd_emu10k1x_pcm_pointer_capture(snd_pcm_substream_t *substream)
683 {
684 emu10k1x_t *emu = snd_pcm_substream_chip(substream);
685 snd_pcm_runtime_t *runtime = substream->runtime;
686 emu10k1x_pcm_t *epcm = runtime->private_data;
687 snd_pcm_uframes_t ptr;
688
689 if (!epcm->running)
690 return 0;
691
692 ptr = bytes_to_frames(runtime, snd_emu10k1x_ptr_read(emu, CAPTURE_POINTER, 0));
693 if (ptr >= runtime->buffer_size)
694 ptr -= runtime->buffer_size;
695
696 return ptr;
697 }
698
699 static snd_pcm_ops_t snd_emu10k1x_capture_ops = {
700 .open = snd_emu10k1x_pcm_open_capture,
701 .close = snd_emu10k1x_pcm_close_capture,
702 .ioctl = snd_pcm_lib_ioctl,
703 .hw_params = snd_emu10k1x_pcm_hw_params_capture,
704 .hw_free = snd_emu10k1x_pcm_hw_free_capture,
705 .prepare = snd_emu10k1x_pcm_prepare_capture,
706 .trigger = snd_emu10k1x_pcm_trigger_capture,
707 .pointer = snd_emu10k1x_pcm_pointer_capture,
708 };
709
710 static unsigned short snd_emu10k1x_ac97_read(ac97_t *ac97,
711 unsigned short reg)
712 {
713 emu10k1x_t *emu = ac97->private_data;
714 unsigned long flags;
715 unsigned short val;
716
717 spin_lock_irqsave(&emu->emu_lock, flags);
718 outb(reg, emu->port + AC97ADDRESS);
719 val = inw(emu->port + AC97DATA);
720 spin_unlock_irqrestore(&emu->emu_lock, flags);
721 return val;
722 }
723
724 static void snd_emu10k1x_ac97_write(ac97_t *ac97,
725 unsigned short reg, unsigned short val)
726 {
727 emu10k1x_t *emu = ac97->private_data;
728 unsigned long flags;
729
730 spin_lock_irqsave(&emu->emu_lock, flags);
731 outb(reg, emu->port + AC97ADDRESS);
732 outw(val, emu->port + AC97DATA);
733 spin_unlock_irqrestore(&emu->emu_lock, flags);
734 }
735
736 static int snd_emu10k1x_ac97(emu10k1x_t *chip)
737 {
738 ac97_bus_t *pbus;
739 ac97_template_t ac97;
740 int err;
741 static ac97_bus_ops_t ops = {
742 .write = snd_emu10k1x_ac97_write,
743 .read = snd_emu10k1x_ac97_read,
744 };
745
746 if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
747 return err;
748 pbus->no_vra = 1; /* we don't need VRA */
749
750 memset(&ac97, 0, sizeof(ac97));
751 ac97.private_data = chip;
752 ac97.scaps = AC97_SCAP_NO_SPDIF;
753 return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
754 }
755
756 static int snd_emu10k1x_free(emu10k1x_t *chip)
757 {
758 snd_emu10k1x_ptr_write(chip, TRIGGER_CHANNEL, 0, 0);
759 // disable interrupts
760 outl(0, chip->port + INTE);
761 // disable audio
762 outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG);
763
764 // release the i/o port
765 if (chip->res_port) {
766 release_resource(chip->res_port);
767 kfree_nocheck(chip->res_port);
768 }
769 // release the irq
770 if (chip->irq >= 0)
771 free_irq(chip->irq, (void *)chip);
772
773 // release the DMA
774 if (chip->dma_buffer.area) {
775 snd_dma_free_pages(&chip->dma_buffer);
776 }
777
778 pci_disable_device(chip->pci);
779
780 // release the data
781 kfree(chip);
782 return 0;
783 }
784
785 static int snd_emu10k1x_dev_free(snd_device_t *device)
786 {
787 emu10k1x_t *chip = device->device_data;
788 return snd_emu10k1x_free(chip);
789 }
790
791 static irqreturn_t snd_emu10k1x_interrupt(int irq, void *dev_id,
792 struct pt_regs *regs)
793 {
794 unsigned int status;
795
796 emu10k1x_t *chip = dev_id;
797 emu10k1x_voice_t *pvoice = chip->voices;
798 int i;
799 int mask;
800
801 status = inl(chip->port + IPR);
802
803 if(status) {
804 // capture interrupt
805 if(status & (IPR_CAP_0_LOOP | IPR_CAP_0_HALF_LOOP)) {
806 emu10k1x_voice_t *pvoice = &chip->capture_voice;
807 if(pvoice->use)
808 snd_emu10k1x_pcm_interrupt(chip, pvoice);
809 else
810 snd_emu10k1x_intr_disable(chip,
811 INTE_CAP_0_LOOP |
812 INTE_CAP_0_HALF_LOOP);
813 }
814
815 mask = IPR_CH_0_LOOP|IPR_CH_0_HALF_LOOP;
816 for(i = 0; i < 3; i++) {
817 if(status & mask) {
818 if(pvoice->use)
819 snd_emu10k1x_pcm_interrupt(chip, pvoice);
820 else
821 snd_emu10k1x_intr_disable(chip, mask);
822 }
823 pvoice++;
824 mask <<= 1;
825 }
826
827 if (status & (IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY)) {
828 if (chip->midi.interrupt)
829 chip->midi.interrupt(chip, status);
830 else
831 snd_emu10k1x_intr_disable(chip, INTE_MIDITXENABLE|INTE_MIDIRXENABLE);
832 }
833
834 // acknowledge the interrupt if necessary
835 if(status)
836 outl(status, chip->port+IPR);
837
838 // snd_printk(KERN_INFO "interrupt %08x\n", status);
839 }
840
841 return IRQ_HANDLED;
842 }
843
844 static void snd_emu10k1x_pcm_free(snd_pcm_t *pcm)
845 {
846 emu10k1x_t *emu = pcm->private_data;
847 emu->pcm = NULL;
848 snd_pcm_lib_preallocate_free_for_all(pcm);
849 }
850
851 static int __devinit snd_emu10k1x_pcm(emu10k1x_t *emu, int device, snd_pcm_t **rpcm)
852 {
853 snd_pcm_t *pcm;
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 pcm->private_free = snd_emu10k1x_pcm_free;
867
868 switch(device) {
869 case 0:
870 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops);
871 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1x_capture_ops);
872 break;
873 case 1:
874 case 2:
875 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops);
876 break;
877 }
878
879 pcm->info_flags = 0;
880 pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
881 switch(device) {
882 case 0:
883 strcpy(pcm->name, "EMU10K1X Front");
884 break;
885 case 1:
886 strcpy(pcm->name, "EMU10K1X Rear");
887 break;
888 case 2:
889 strcpy(pcm->name, "EMU10K1X Center/LFE");
890 break;
891 }
892 emu->pcm = pcm;
893
894 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
895 snd_dma_pci_data(emu->pci),
896 32*1024, 32*1024);
897
898 if (rpcm)
899 *rpcm = pcm;
900
901 return 0;
902 }
903
904 static int __devinit snd_emu10k1x_create(snd_card_t *card,
905 struct pci_dev *pci,
906 emu10k1x_t **rchip)
907 {
908 emu10k1x_t *chip;
909 int err;
910 int ch;
911 static snd_device_ops_t ops = {
912 .dev_free = snd_emu10k1x_dev_free,
913 };
914
915 *rchip = NULL;
916
917 if ((err = pci_enable_device(pci)) < 0)
918 return err;
919 if (pci_set_dma_mask(pci, 0x0fffffff) < 0 ||
920 pci_set_consistent_dma_mask(pci, 0x0fffffff) < 0) {
921 snd_printk(KERN_ERR "error to set 28bit mask DMA\n");
922 pci_disable_device(pci);
923 return -ENXIO;
924 }
925
926 chip = kcalloc(1, sizeof(*chip), GFP_KERNEL);
927 if (chip == NULL) {
928 pci_disable_device(pci);
929 return -ENOMEM;
930 }
931
932 chip->card = card;
933 chip->pci = pci;
934 chip->irq = -1;
935
936 spin_lock_init(&chip->emu_lock);
937 spin_lock_init(&chip->voice_lock);
938
939 chip->port = pci_resource_start(pci, 0);
940 if ((chip->res_port = request_region(chip->port, 8,
941 "EMU10K1X")) == NULL) {
942 snd_printk(KERN_ERR "emu10k1x: cannot allocate the port 0x%lx\n", chip->port);
943 snd_emu10k1x_free(chip);
944 return -EBUSY;
945 }
946
947 if (request_irq(pci->irq, snd_emu10k1x_interrupt,
948 SA_INTERRUPT|SA_SHIRQ, "EMU10K1X",
949 (void *)chip)) {
950 snd_printk(KERN_ERR "emu10k1x: cannot grab irq %d\n", pci->irq);
951 snd_emu10k1x_free(chip);
952 return -EBUSY;
953 }
954 chip->irq = pci->irq;
955
956 if(snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
957 4 * 1024, &chip->dma_buffer) < 0) {
958 snd_emu10k1x_free(chip);
959 return -ENOMEM;
960 }
961
962 pci_set_master(pci);
963 /* read revision & serial */
964 pci_read_config_byte(pci, PCI_REVISION_ID, (char *)&chip->revision);
965 pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
966 pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
967 snd_printk(KERN_INFO "Model %04x Rev %08x Serial %08x\n", chip->model,
968 chip->revision, chip->serial);
969
970 outl(0, chip->port + INTE);
971
972 for(ch = 0; ch < 3; ch++) {
973 chip->voices[ch].emu = chip;
974 chip->voices[ch].number = ch;
975 }
976
977 /*
978 * Init to 0x02109204 :
979 * Clock accuracy = 0 (1000ppm)
980 * Sample Rate = 2 (48kHz)
981 * Audio Channel = 1 (Left of 2)
982 * Source Number = 0 (Unspecified)
983 * Generation Status = 1 (Original for Cat Code 12)
984 * Cat Code = 12 (Digital Signal Mixer)
985 * Mode = 0 (Mode 0)
986 * Emphasis = 0 (None)
987 * CP = 1 (Copyright unasserted)
988 * AN = 0 (Audio data)
989 * P = 0 (Consumer)
990 */
991 snd_emu10k1x_ptr_write(chip, SPCS0, 0,
992 chip->spdif_bits[0] =
993 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
994 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
995 SPCS_GENERATIONSTATUS | 0x00001200 |
996 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
997 snd_emu10k1x_ptr_write(chip, SPCS1, 0,
998 chip->spdif_bits[1] =
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, SPCS2, 0,
1004 chip->spdif_bits[2] =
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
1010 snd_emu10k1x_ptr_write(chip, SPDIF_SELECT, 0, 0x700); // disable SPDIF
1011 snd_emu10k1x_ptr_write(chip, ROUTING, 0, 0x1003F); // routing
1012 snd_emu10k1x_gpio_write(chip, 0x1080); // analog mode
1013
1014 outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG);
1015
1016 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
1017 chip, &ops)) < 0) {
1018 snd_emu10k1x_free(chip);
1019 return err;
1020 }
1021 *rchip = chip;
1022 return 0;
1023 }
1024
1025 static void snd_emu10k1x_proc_reg_read(snd_info_entry_t *entry,
1026 snd_info_buffer_t * buffer)
1027 {
1028 emu10k1x_t *emu = entry->private_data;
1029 unsigned long value,value1,value2;
1030 unsigned long flags;
1031 int i;
1032
1033 snd_iprintf(buffer, "Registers:\n\n");
1034 for(i = 0; i < 0x20; i+=4) {
1035 spin_lock_irqsave(&emu->emu_lock, flags);
1036 value = inl(emu->port + i);
1037 spin_unlock_irqrestore(&emu->emu_lock, flags);
1038 snd_iprintf(buffer, "Register %02X: %08lX\n", i, value);
1039 }
1040 snd_iprintf(buffer, "\nRegisters\n\n");
1041 for(i = 0; i <= 0x48; i++) {
1042 value = snd_emu10k1x_ptr_read(emu, i, 0);
1043 if(i < 0x10 || (i >= 0x20 && i < 0x40)) {
1044 value1 = snd_emu10k1x_ptr_read(emu, i, 1);
1045 value2 = snd_emu10k1x_ptr_read(emu, i, 2);
1046 snd_iprintf(buffer, "%02X: %08lX %08lX %08lX\n", i, value, value1, value2);
1047 } else {
1048 snd_iprintf(buffer, "%02X: %08lX\n", i, value);
1049 }
1050 }
1051 }
1052
1053 static void snd_emu10k1x_proc_reg_write(snd_info_entry_t *entry,
1054 snd_info_buffer_t *buffer)
1055 {
1056 emu10k1x_t *emu = entry->private_data;
1057 char line[64];
1058 unsigned int reg, channel_id , val;
1059
1060 while (!snd_info_get_line(buffer, line, sizeof(line))) {
1061 if (sscanf(line, "%x %x %x", &reg, &channel_id, &val) != 3)
1062 continue;
1063
1064 if ((reg < 0x49) && (reg >=0) && (val <= 0xffffffff)
1065 && (channel_id >=0) && (channel_id <= 2) )
1066 snd_emu10k1x_ptr_write(emu, reg, channel_id, val);
1067 }
1068 }
1069
1070 static int __devinit snd_emu10k1x_proc_init(emu10k1x_t * emu)
1071 {
1072 snd_info_entry_t *entry;
1073
1074 if(! snd_card_proc_new(emu->card, "emu10k1x_regs", &entry)) {
1075 snd_info_set_text_ops(entry, emu, 1024, snd_emu10k1x_proc_reg_read);
1076 entry->c.text.write_size = 64;
1077 entry->c.text.write = snd_emu10k1x_proc_reg_write;
1078 entry->private_data = emu;
1079 }
1080
1081 return 0;
1082 }
1083
1084 static int snd_emu10k1x_shared_spdif_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
1085 {
1086 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1087 uinfo->count = 1;
1088 uinfo->value.integer.min = 0;
1089 uinfo->value.integer.max = 1;
1090 return 0;
1091 }
1092
1093 static int snd_emu10k1x_shared_spdif_get(snd_kcontrol_t * kcontrol,
1094 snd_ctl_elem_value_t * ucontrol)
1095 {
1096 emu10k1x_t *emu = snd_kcontrol_chip(kcontrol);
1097
1098 ucontrol->value.integer.value[0] = (snd_emu10k1x_ptr_read(emu, SPDIF_SELECT, 0) == 0x700) ? 0 : 1;
1099
1100 return 0;
1101 }
1102
1103 static int snd_emu10k1x_shared_spdif_put(snd_kcontrol_t * kcontrol,
1104 snd_ctl_elem_value_t * ucontrol)
1105 {
1106 emu10k1x_t *emu = snd_kcontrol_chip(kcontrol);
1107 unsigned int val;
1108 int change = 0;
1109
1110 val = ucontrol->value.integer.value[0] ;
1111
1112 if (val) {
1113 // enable spdif output
1114 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x000);
1115 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x700);
1116 snd_emu10k1x_gpio_write(emu, 0x1000);
1117 } else {
1118 // disable spdif output
1119 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x700);
1120 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x1003F);
1121 snd_emu10k1x_gpio_write(emu, 0x1080);
1122 }
1123 return change;
1124 }
1125
1126 static snd_kcontrol_new_t snd_emu10k1x_shared_spdif __devinitdata =
1127 {
1128 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1129 .name = "Analog/Digital Output Jack",
1130 .info = snd_emu10k1x_shared_spdif_info,
1131 .get = snd_emu10k1x_shared_spdif_get,
1132 .put = snd_emu10k1x_shared_spdif_put
1133 };
1134
1135 static int snd_emu10k1x_spdif_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
1136 {
1137 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1138 uinfo->count = 1;
1139 return 0;
1140 }
1141
1142 static int snd_emu10k1x_spdif_get(snd_kcontrol_t * kcontrol,
1143 snd_ctl_elem_value_t * ucontrol)
1144 {
1145 emu10k1x_t *emu = snd_kcontrol_chip(kcontrol);
1146 unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
1147
1148 ucontrol->value.iec958.status[0] = (emu->spdif_bits[idx] >> 0) & 0xff;
1149 ucontrol->value.iec958.status[1] = (emu->spdif_bits[idx] >> 8) & 0xff;
1150 ucontrol->value.iec958.status[2] = (emu->spdif_bits[idx] >> 16) & 0xff;
1151 ucontrol->value.iec958.status[3] = (emu->spdif_bits[idx] >> 24) & 0xff;
1152 return 0;
1153 }
1154
1155 static int snd_emu10k1x_spdif_get_mask(snd_kcontrol_t * kcontrol,
1156 snd_ctl_elem_value_t * ucontrol)
1157 {
1158 ucontrol->value.iec958.status[0] = 0xff;
1159 ucontrol->value.iec958.status[1] = 0xff;
1160 ucontrol->value.iec958.status[2] = 0xff;
1161 ucontrol->value.iec958.status[3] = 0xff;
1162 return 0;
1163 }
1164
1165 static int snd_emu10k1x_spdif_put(snd_kcontrol_t * kcontrol,
1166 snd_ctl_elem_value_t * ucontrol)
1167 {
1168 emu10k1x_t *emu = snd_kcontrol_chip(kcontrol);
1169 unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
1170 int change;
1171 unsigned int val;
1172
1173 val = (ucontrol->value.iec958.status[0] << 0) |
1174 (ucontrol->value.iec958.status[1] << 8) |
1175 (ucontrol->value.iec958.status[2] << 16) |
1176 (ucontrol->value.iec958.status[3] << 24);
1177 change = val != emu->spdif_bits[idx];
1178 if (change) {
1179 snd_emu10k1x_ptr_write(emu, SPCS0 + idx, 0, val);
1180 emu->spdif_bits[idx] = val;
1181 }
1182 return change;
1183 }
1184
1185 static snd_kcontrol_new_t snd_emu10k1x_spdif_mask_control =
1186 {
1187 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1188 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1189 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
1190 .count = 3,
1191 .info = snd_emu10k1x_spdif_info,
1192 .get = snd_emu10k1x_spdif_get_mask
1193 };
1194
1195 static snd_kcontrol_new_t snd_emu10k1x_spdif_control =
1196 {
1197 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1198 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1199 .count = 3,
1200 .info = snd_emu10k1x_spdif_info,
1201 .get = snd_emu10k1x_spdif_get,
1202 .put = snd_emu10k1x_spdif_put
1203 };
1204
1205 static int __devinit snd_emu10k1x_mixer(emu10k1x_t *emu)
1206 {
1207 int err;
1208 snd_kcontrol_t *kctl;
1209 snd_card_t *card = emu->card;
1210
1211 if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_mask_control, emu)) == NULL)
1212 return -ENOMEM;
1213 if ((err = snd_ctl_add(card, kctl)))
1214 return err;
1215 if ((kctl = snd_ctl_new1(&snd_emu10k1x_shared_spdif, emu)) == NULL)
1216 return -ENOMEM;
1217 if ((err = snd_ctl_add(card, kctl)))
1218 return err;
1219 if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_control, emu)) == NULL)
1220 return -ENOMEM;
1221 if ((err = snd_ctl_add(card, kctl)))
1222 return err;
1223
1224 return 0;
1225 }
1226
1227 #define EMU10K1X_MIDI_MODE_INPUT (1<<0)
1228 #define EMU10K1X_MIDI_MODE_OUTPUT (1<<1)
1229
1230 static inline unsigned char mpu401_read(emu10k1x_t *emu, emu10k1x_midi_t *mpu, int idx)
1231 {
1232 return (unsigned char)snd_emu10k1x_ptr_read(emu, mpu->port + idx, 0);
1233 }
1234
1235 static inline void mpu401_write(emu10k1x_t *emu, emu10k1x_midi_t *mpu, int data, int idx)
1236 {
1237 snd_emu10k1x_ptr_write(emu, mpu->port + idx, 0, data);
1238 }
1239
1240 #define mpu401_write_data(emu, mpu, data) mpu401_write(emu, mpu, data, 0)
1241 #define mpu401_write_cmd(emu, mpu, data) mpu401_write(emu, mpu, data, 1)
1242 #define mpu401_read_data(emu, mpu) mpu401_read(emu, mpu, 0)
1243 #define mpu401_read_stat(emu, mpu) mpu401_read(emu, mpu, 1)
1244
1245 #define mpu401_input_avail(emu,mpu) (!(mpu401_read_stat(emu,mpu) & 0x80))
1246 #define mpu401_output_ready(emu,mpu) (!(mpu401_read_stat(emu,mpu) & 0x40))
1247
1248 #define MPU401_RESET 0xff
1249 #define MPU401_ENTER_UART 0x3f
1250 #define MPU401_ACK 0xfe
1251
1252 static void mpu401_clear_rx(emu10k1x_t *emu, emu10k1x_midi_t *mpu)
1253 {
1254 int timeout = 100000;
1255 for (; timeout > 0 && mpu401_input_avail(emu, mpu); timeout--)
1256 mpu401_read_data(emu, mpu);
1257 #ifdef CONFIG_SND_DEBUG
1258 if (timeout <= 0)
1259 snd_printk(KERN_ERR "cmd: clear rx timeout (status = 0x%x)\n", mpu401_read_stat(emu, mpu));
1260 #endif
1261 }
1262
1263 /*
1264
1265 */
1266
1267 static void do_emu10k1x_midi_interrupt(emu10k1x_t *emu, emu10k1x_midi_t *midi, unsigned int status)
1268 {
1269 unsigned char byte;
1270
1271 if (midi->rmidi == NULL) {
1272 snd_emu10k1x_intr_disable(emu, midi->tx_enable | midi->rx_enable);
1273 return;
1274 }
1275
1276 spin_lock(&midi->input_lock);
1277 if ((status & midi->ipr_rx) && mpu401_input_avail(emu, midi)) {
1278 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1279 mpu401_clear_rx(emu, midi);
1280 } else {
1281 byte = mpu401_read_data(emu, midi);
1282 if (midi->substream_input)
1283 snd_rawmidi_receive(midi->substream_input, &byte, 1);
1284 }
1285 }
1286 spin_unlock(&midi->input_lock);
1287
1288 spin_lock(&midi->output_lock);
1289 if ((status & midi->ipr_tx) && mpu401_output_ready(emu, midi)) {
1290 if (midi->substream_output &&
1291 snd_rawmidi_transmit(midi->substream_output, &byte, 1) == 1) {
1292 mpu401_write_data(emu, midi, byte);
1293 } else {
1294 snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1295 }
1296 }
1297 spin_unlock(&midi->output_lock);
1298 }
1299
1300 static void snd_emu10k1x_midi_interrupt(emu10k1x_t *emu, unsigned int status)
1301 {
1302 do_emu10k1x_midi_interrupt(emu, &emu->midi, status);
1303 }
1304
1305 static void snd_emu10k1x_midi_cmd(emu10k1x_t * emu, emu10k1x_midi_t *midi, unsigned char cmd, int ack)
1306 {
1307 unsigned long flags;
1308 int timeout, ok;
1309
1310 spin_lock_irqsave(&midi->input_lock, flags);
1311 mpu401_write_data(emu, midi, 0x00);
1312 /* mpu401_clear_rx(emu, midi); */
1313
1314 mpu401_write_cmd(emu, midi, cmd);
1315 if (ack) {
1316 ok = 0;
1317 timeout = 10000;
1318 while (!ok && timeout-- > 0) {
1319 if (mpu401_input_avail(emu, midi)) {
1320 if (mpu401_read_data(emu, midi) == MPU401_ACK)
1321 ok = 1;
1322 }
1323 }
1324 if (!ok && mpu401_read_data(emu, midi) == MPU401_ACK)
1325 ok = 1;
1326 } else {
1327 ok = 1;
1328 }
1329 spin_unlock_irqrestore(&midi->input_lock, flags);
1330 if (!ok)
1331 snd_printk(KERN_ERR "midi_cmd: 0x%x failed at 0x%lx (status = 0x%x, data = 0x%x)!!!\n",
1332 cmd, emu->port,
1333 mpu401_read_stat(emu, midi),
1334 mpu401_read_data(emu, midi));
1335 }
1336
1337 static int snd_emu10k1x_midi_input_open(snd_rawmidi_substream_t * substream)
1338 {
1339 emu10k1x_t *emu;
1340 emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1341 unsigned long flags;
1342
1343 emu = midi->emu;
1344 snd_assert(emu, return -ENXIO);
1345 spin_lock_irqsave(&midi->open_lock, flags);
1346 midi->midi_mode |= EMU10K1X_MIDI_MODE_INPUT;
1347 midi->substream_input = substream;
1348 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) {
1349 spin_unlock_irqrestore(&midi->open_lock, flags);
1350 snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1);
1351 snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1);
1352 } else {
1353 spin_unlock_irqrestore(&midi->open_lock, flags);
1354 }
1355 return 0;
1356 }
1357
1358 static int snd_emu10k1x_midi_output_open(snd_rawmidi_substream_t * substream)
1359 {
1360 emu10k1x_t *emu;
1361 emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1362 unsigned long flags;
1363
1364 emu = midi->emu;
1365 snd_assert(emu, return -ENXIO);
1366 spin_lock_irqsave(&midi->open_lock, flags);
1367 midi->midi_mode |= EMU10K1X_MIDI_MODE_OUTPUT;
1368 midi->substream_output = substream;
1369 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1370 spin_unlock_irqrestore(&midi->open_lock, flags);
1371 snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1);
1372 snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1);
1373 } else {
1374 spin_unlock_irqrestore(&midi->open_lock, flags);
1375 }
1376 return 0;
1377 }
1378
1379 static int snd_emu10k1x_midi_input_close(snd_rawmidi_substream_t * substream)
1380 {
1381 emu10k1x_t *emu;
1382 emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1383 unsigned long flags;
1384
1385 emu = midi->emu;
1386 snd_assert(emu, return -ENXIO);
1387 spin_lock_irqsave(&midi->open_lock, flags);
1388 snd_emu10k1x_intr_disable(emu, midi->rx_enable);
1389 midi->midi_mode &= ~EMU10K1X_MIDI_MODE_INPUT;
1390 midi->substream_input = NULL;
1391 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) {
1392 spin_unlock_irqrestore(&midi->open_lock, flags);
1393 snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0);
1394 } else {
1395 spin_unlock_irqrestore(&midi->open_lock, flags);
1396 }
1397 return 0;
1398 }
1399
1400 static int snd_emu10k1x_midi_output_close(snd_rawmidi_substream_t * substream)
1401 {
1402 emu10k1x_t *emu;
1403 emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1404 unsigned long flags;
1405
1406 emu = midi->emu;
1407 snd_assert(emu, return -ENXIO);
1408 spin_lock_irqsave(&midi->open_lock, flags);
1409 snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1410 midi->midi_mode &= ~EMU10K1X_MIDI_MODE_OUTPUT;
1411 midi->substream_output = NULL;
1412 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1413 spin_unlock_irqrestore(&midi->open_lock, flags);
1414 snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0);
1415 } else {
1416 spin_unlock_irqrestore(&midi->open_lock, flags);
1417 }
1418 return 0;
1419 }
1420
1421 static void snd_emu10k1x_midi_input_trigger(snd_rawmidi_substream_t * substream, int up)
1422 {
1423 emu10k1x_t *emu;
1424 emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1425 emu = midi->emu;
1426 snd_assert(emu, return);
1427
1428 if (up)
1429 snd_emu10k1x_intr_enable(emu, midi->rx_enable);
1430 else
1431 snd_emu10k1x_intr_disable(emu, midi->rx_enable);
1432 }
1433
1434 static void snd_emu10k1x_midi_output_trigger(snd_rawmidi_substream_t * substream, int up)
1435 {
1436 emu10k1x_t *emu;
1437 emu10k1x_midi_t *midi = (emu10k1x_midi_t *)substream->rmidi->private_data;
1438 unsigned long flags;
1439
1440 emu = midi->emu;
1441 snd_assert(emu, return);
1442
1443 if (up) {
1444 int max = 4;
1445 unsigned char byte;
1446
1447 /* try to send some amount of bytes here before interrupts */
1448 spin_lock_irqsave(&midi->output_lock, flags);
1449 while (max > 0) {
1450 if (mpu401_output_ready(emu, midi)) {
1451 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT) ||
1452 snd_rawmidi_transmit(substream, &byte, 1) != 1) {
1453 /* no more data */
1454 spin_unlock_irqrestore(&midi->output_lock, flags);
1455 return;
1456 }
1457 mpu401_write_data(emu, midi, byte);
1458 max--;
1459 } else {
1460 break;
1461 }
1462 }
1463 spin_unlock_irqrestore(&midi->output_lock, flags);
1464 snd_emu10k1x_intr_enable(emu, midi->tx_enable);
1465 } else {
1466 snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1467 }
1468 }
1469
1470 /*
1471
1472 */
1473
1474 static snd_rawmidi_ops_t snd_emu10k1x_midi_output =
1475 {
1476 .open = snd_emu10k1x_midi_output_open,
1477 .close = snd_emu10k1x_midi_output_close,
1478 .trigger = snd_emu10k1x_midi_output_trigger,
1479 };
1480
1481 static snd_rawmidi_ops_t snd_emu10k1x_midi_input =
1482 {
1483 .open = snd_emu10k1x_midi_input_open,
1484 .close = snd_emu10k1x_midi_input_close,
1485 .trigger = snd_emu10k1x_midi_input_trigger,
1486 };
1487
1488 static void snd_emu10k1x_midi_free(snd_rawmidi_t *rmidi)
1489 {
1490 emu10k1x_midi_t *midi = (emu10k1x_midi_t *)rmidi->private_data;
1491 midi->interrupt = NULL;
1492 midi->rmidi = NULL;
1493 }
1494
1495 static int __devinit emu10k1x_midi_init(emu10k1x_t *emu, emu10k1x_midi_t *midi, int device, char *name)
1496 {
1497 snd_rawmidi_t *rmidi;
1498 int err;
1499
1500 if ((err = snd_rawmidi_new(emu->card, name, device, 1, 1, &rmidi)) < 0)
1501 return err;
1502 midi->emu = emu;
1503 spin_lock_init(&midi->open_lock);
1504 spin_lock_init(&midi->input_lock);
1505 spin_lock_init(&midi->output_lock);
1506 strcpy(rmidi->name, name);
1507 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_emu10k1x_midi_output);
1508 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_emu10k1x_midi_input);
1509 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT |
1510 SNDRV_RAWMIDI_INFO_INPUT |
1511 SNDRV_RAWMIDI_INFO_DUPLEX;
1512 rmidi->private_data = midi;
1513 rmidi->private_free = snd_emu10k1x_midi_free;
1514 midi->rmidi = rmidi;
1515 return 0;
1516 }
1517
1518 static int __devinit snd_emu10k1x_midi(emu10k1x_t *emu)
1519 {
1520 emu10k1x_midi_t *midi = &emu->midi;
1521 int err;
1522
1523 if ((err = emu10k1x_midi_init(emu, midi, 0, "EMU10K1X MPU-401 (UART)")) < 0)
1524 return err;
1525
1526 midi->tx_enable = INTE_MIDITXENABLE;
1527 midi->rx_enable = INTE_MIDIRXENABLE;
1528 midi->port = MUDATA;
1529 midi->ipr_tx = IPR_MIDITRANSBUFEMPTY;
1530 midi->ipr_rx = IPR_MIDIRECVBUFEMPTY;
1531 midi->interrupt = snd_emu10k1x_midi_interrupt;
1532 return 0;
1533 }
1534
1535 static int __devinit snd_emu10k1x_probe(struct pci_dev *pci,
1536 const struct pci_device_id *pci_id)
1537 {
1538 static int dev;
1539 snd_card_t *card;
1540 emu10k1x_t *chip;
1541 int err;
1542
1543 if (dev >= SNDRV_CARDS)
1544 return -ENODEV;
1545 if (!enable[dev]) {
1546 dev++;
1547 return -ENOENT;
1548 }
1549
1550 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1551 if (card == NULL)
1552 return -ENOMEM;
1553
1554 if ((err = snd_emu10k1x_create(card, pci, &chip)) < 0) {
1555 snd_card_free(card);
1556 return err;
1557 }
1558
1559 if ((err = snd_emu10k1x_pcm(chip, 0, NULL)) < 0) {
1560 snd_card_free(card);
1561 return err;
1562 }
1563 if ((err = snd_emu10k1x_pcm(chip, 1, NULL)) < 0) {
1564 snd_card_free(card);
1565 return err;
1566 }
1567 if ((err = snd_emu10k1x_pcm(chip, 2, NULL)) < 0) {
1568 snd_card_free(card);
1569 return err;
1570 }
1571
1572 if ((err = snd_emu10k1x_ac97(chip)) < 0) {
1573 snd_card_free(card);
1574 return err;
1575 }
1576
1577 if ((err = snd_emu10k1x_mixer(chip)) < 0) {
1578 snd_card_free(card);
1579 return err;
1580 }
1581
1582 if ((err = snd_emu10k1x_midi(chip)) < 0) {
1583 snd_card_free(card);
1584 return err;
1585 }
1586
1587 snd_emu10k1x_proc_init(chip);
1588
1589 strcpy(card->driver, "EMU10K1X");
1590 strcpy(card->shortname, "Dell Sound Blaster Live!");
1591 sprintf(card->longname, "%s at 0x%lx irq %i",
1592 card->shortname, chip->port, chip->irq);
1593
1594 if ((err = snd_card_register(card)) < 0) {
1595 snd_card_free(card);
1596 return err;
1597 }
1598
1599 pci_set_drvdata(pci, card);
1600 dev++;
1601 return 0;
1602 }
1603
1604 static void __devexit snd_emu10k1x_remove(struct pci_dev *pci)
1605 {
1606 snd_card_free(pci_get_drvdata(pci));
1607 pci_set_drvdata(pci, NULL);
1608 }
1609
1610 // PCI IDs
1611 static struct pci_device_id snd_emu10k1x_ids[] = {
1612 { 0x1102, 0x0006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* Dell OEM version (EMU10K1) */
1613 { 0, }
1614 };
1615 MODULE_DEVICE_TABLE(pci, snd_emu10k1x_ids);
1616
1617 // pci_driver definition
1618 static struct pci_driver driver = {
1619 .name = "EMU10K1X",
1620 .id_table = snd_emu10k1x_ids,
1621 .probe = snd_emu10k1x_probe,
1622 .remove = __devexit_p(snd_emu10k1x_remove),
1623 };
1624
1625 // initialization of the module
1626 static int __init alsa_card_emu10k1x_init(void)
1627 {
1628 int err;
1629
1630 if ((err = pci_module_init(&driver)) > 0)
1631 return err;
1632
1633 return 0;
1634 }
1635
1636 // clean up the module
1637 static void __exit alsa_card_emu10k1x_exit(void)
1638 {
1639 pci_unregister_driver(&driver);
1640 }
1641
1642 module_init(alsa_card_emu10k1x_init)
1643 module_exit(alsa_card_emu10k1x_exit)
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git