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[PATCH] core-dumping unreadable binaries via PT_INTERP
[linux-2.6/verdex.git] / sound / pci / emu10k1 / emu10k1x.c
blob2199b42a601994539c076c81d8e361e415316d32
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/dma-mapping.h>
37 #include <linux/slab.h>
38 #include <linux/moduleparam.h>
39 #include <sound/core.h>
40 #include <sound/initval.h>
41 #include <sound/pcm.h>
42 #include <sound/ac97_codec.h>
43 #include <sound/info.h>
44 #include <sound/rawmidi.h>
45
46 MODULE_AUTHOR("Francisco Moraes <fmoraes@nc.rr.com>");
47 MODULE_DESCRIPTION("EMU10K1X");
48 MODULE_LICENSE("GPL");
49 MODULE_SUPPORTED_DEVICE("{{Dell Creative Labs,SB Live!}");
50
51 // module parameters (see "Module Parameters")
52 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
53 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
54 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
55
56 module_param_array(index, int, NULL, 0444);
57 MODULE_PARM_DESC(index, "Index value for the EMU10K1X soundcard.");
58 module_param_array(id, charp, NULL, 0444);
59 MODULE_PARM_DESC(id, "ID string for the EMU10K1X soundcard.");
60 module_param_array(enable, bool, NULL, 0444);
61 MODULE_PARM_DESC(enable, "Enable the EMU10K1X soundcard.");
62
63
64 // some definitions were borrowed from emu10k1 driver as they seem to be the same
65 /************************************************************************************************/
66 /* PCI function 0 registers, address = <val> + PCIBASE0 */
67 /************************************************************************************************/
68
69 #define PTR 0x00 /* Indexed register set pointer register */
70 /* NOTE: The CHANNELNUM and ADDRESS words can */
71 /* be modified independently of each other. */
72
73 #define DATA 0x04 /* Indexed register set data register */
74
75 #define IPR 0x08 /* Global interrupt pending register */
76 /* Clear pending interrupts by writing a 1 to */
77 /* the relevant bits and zero to the other bits */
78 #define IPR_MIDITRANSBUFEMPTY 0x00000001 /* MIDI UART transmit buffer empty */
79 #define IPR_MIDIRECVBUFEMPTY 0x00000002 /* MIDI UART receive buffer empty */
80 #define IPR_CH_0_LOOP 0x00000800 /* Channel 0 loop */
81 #define IPR_CH_0_HALF_LOOP 0x00000100 /* Channel 0 half loop */
82 #define IPR_CAP_0_LOOP 0x00080000 /* Channel capture loop */
83 #define IPR_CAP_0_HALF_LOOP 0x00010000 /* Channel capture half loop */
84
85 #define INTE 0x0c /* Interrupt enable register */
86 #define INTE_MIDITXENABLE 0x00000001 /* Enable MIDI transmit-buffer-empty interrupts */
87 #define INTE_MIDIRXENABLE 0x00000002 /* Enable MIDI receive-buffer-empty interrupts */
88 #define INTE_CH_0_LOOP 0x00000800 /* Channel 0 loop */
89 #define INTE_CH_0_HALF_LOOP 0x00000100 /* Channel 0 half loop */
90 #define INTE_CAP_0_LOOP 0x00080000 /* Channel capture loop */
91 #define INTE_CAP_0_HALF_LOOP 0x00010000 /* Channel capture half loop */
92
93 #define HCFG 0x14 /* Hardware config register */
94
95 #define HCFG_LOCKSOUNDCACHE 0x00000008 /* 1 = Cancel bustmaster accesses to soundcache */
96 /* NOTE: This should generally never be used. */
97 #define HCFG_AUDIOENABLE 0x00000001 /* 0 = CODECs transmit zero-valued samples */
98 /* Should be set to 1 when the EMU10K1 is */
99 /* completely initialized. */
100 #define GPIO 0x18 /* Defaults: 00001080-Analog, 00001000-SPDIF. */
101
102
103 #define AC97DATA 0x1c /* AC97 register set data register (16 bit) */
104
105 #define AC97ADDRESS 0x1e /* AC97 register set address register (8 bit) */
106
107 /********************************************************************************************************/
108 /* Emu10k1x pointer-offset register set, accessed through the PTR and DATA registers */
109 /********************************************************************************************************/
110 #define PLAYBACK_LIST_ADDR 0x00 /* Base DMA address of a list of pointers to each period/size */
111 /* One list entry: 4 bytes for DMA address,
112 * 4 bytes for period_size << 16.
113 * One list entry is 8 bytes long.
114 * One list entry for each period in the buffer.
115 */
116 #define PLAYBACK_LIST_SIZE 0x01 /* Size of list in bytes << 16. E.g. 8 periods -> 0x00380000 */
117 #define PLAYBACK_LIST_PTR 0x02 /* Pointer to the current period being played */
118 #define PLAYBACK_DMA_ADDR 0x04 /* Playback DMA addresss */
119 #define PLAYBACK_PERIOD_SIZE 0x05 /* Playback period size */
120 #define PLAYBACK_POINTER 0x06 /* Playback period pointer. Sample currently in DAC */
121 #define PLAYBACK_UNKNOWN1 0x07
122 #define PLAYBACK_UNKNOWN2 0x08
123
124 /* Only one capture channel supported */
125 #define CAPTURE_DMA_ADDR 0x10 /* Capture DMA address */
126 #define CAPTURE_BUFFER_SIZE 0x11 /* Capture buffer size */
127 #define CAPTURE_POINTER 0x12 /* Capture buffer pointer. Sample currently in ADC */
128 #define CAPTURE_UNKNOWN 0x13
129
130 /* From 0x20 - 0x3f, last samples played on each channel */
131
132 #define TRIGGER_CHANNEL 0x40 /* Trigger channel playback */
133 #define TRIGGER_CHANNEL_0 0x00000001 /* Trigger channel 0 */
134 #define TRIGGER_CHANNEL_1 0x00000002 /* Trigger channel 1 */
135 #define TRIGGER_CHANNEL_2 0x00000004 /* Trigger channel 2 */
136 #define TRIGGER_CAPTURE 0x00000100 /* Trigger capture channel */
137
138 #define ROUTING 0x41 /* Setup sound routing ? */
139 #define ROUTING_FRONT_LEFT 0x00000001
140 #define ROUTING_FRONT_RIGHT 0x00000002
141 #define ROUTING_REAR_LEFT 0x00000004
142 #define ROUTING_REAR_RIGHT 0x00000008
143 #define ROUTING_CENTER_LFE 0x00010000
144
145 #define SPCS0 0x42 /* SPDIF output Channel Status 0 register */
146
147 #define SPCS1 0x43 /* SPDIF output Channel Status 1 register */
148
149 #define SPCS2 0x44 /* SPDIF output Channel Status 2 register */
150
151 #define SPCS_CLKACCYMASK 0x30000000 /* Clock accuracy */
152 #define SPCS_CLKACCY_1000PPM 0x00000000 /* 1000 parts per million */
153 #define SPCS_CLKACCY_50PPM 0x10000000 /* 50 parts per million */
154 #define SPCS_CLKACCY_VARIABLE 0x20000000 /* Variable accuracy */
155 #define SPCS_SAMPLERATEMASK 0x0f000000 /* Sample rate */
156 #define SPCS_SAMPLERATE_44 0x00000000 /* 44.1kHz sample rate */
157 #define SPCS_SAMPLERATE_48 0x02000000 /* 48kHz sample rate */
158 #define SPCS_SAMPLERATE_32 0x03000000 /* 32kHz sample rate */
159 #define SPCS_CHANNELNUMMASK 0x00f00000 /* Channel number */
160 #define SPCS_CHANNELNUM_UNSPEC 0x00000000 /* Unspecified channel number */
161 #define SPCS_CHANNELNUM_LEFT 0x00100000 /* Left channel */
162 #define SPCS_CHANNELNUM_RIGHT 0x00200000 /* Right channel */
163 #define SPCS_SOURCENUMMASK 0x000f0000 /* Source number */
164 #define SPCS_SOURCENUM_UNSPEC 0x00000000 /* Unspecified source number */
165 #define SPCS_GENERATIONSTATUS 0x00008000 /* Originality flag (see IEC-958 spec) */
166 #define SPCS_CATEGORYCODEMASK 0x00007f00 /* Category code (see IEC-958 spec) */
167 #define SPCS_MODEMASK 0x000000c0 /* Mode (see IEC-958 spec) */
168 #define SPCS_EMPHASISMASK 0x00000038 /* Emphasis */
169 #define SPCS_EMPHASIS_NONE 0x00000000 /* No emphasis */
170 #define SPCS_EMPHASIS_50_15 0x00000008 /* 50/15 usec 2 channel */
171 #define SPCS_COPYRIGHT 0x00000004 /* Copyright asserted flag -- do not modify */
172 #define SPCS_NOTAUDIODATA 0x00000002 /* 0 = Digital audio, 1 = not audio */
173 #define SPCS_PROFESSIONAL 0x00000001 /* 0 = Consumer (IEC-958), 1 = pro (AES3-1992) */
174
175 #define SPDIF_SELECT 0x45 /* Enables SPDIF or Analogue outputs 0-Analogue, 0x700-SPDIF */
176
177 /* This is the MPU port on the card */
178 #define MUDATA 0x47
179 #define MUCMD 0x48
180 #define MUSTAT MUCMD
181
182 /* From 0x50 - 0x5f, last samples captured */
183
184 /**
185 * The hardware has 3 channels for playback and 1 for capture.
186 * - channel 0 is the front channel
187 * - channel 1 is the rear channel
188 * - channel 2 is the center/lfe chanel
189 * Volume is controlled by the AC97 for the front and rear channels by
190 * the PCM Playback Volume, Sigmatel Surround Playback Volume and
191 * Surround Playback Volume. The Sigmatel 4-Speaker Stereo switch affects
192 * the front/rear channel mixing in the REAR OUT jack. When using the
193 * 4-Speaker Stereo, both front and rear channels will be mixed in the
194 * REAR OUT.
195 * The center/lfe channel has no volume control and cannot be muted during
196 * playback.
197 */
198
199 struct emu10k1x_voice {
200 struct emu10k1x *emu;
201 int number;
202 int use;
203
204 struct emu10k1x_pcm *epcm;
205 };
206
207 struct emu10k1x_pcm {
208 struct emu10k1x *emu;
209 struct snd_pcm_substream *substream;
210 struct emu10k1x_voice *voice;
211 unsigned short running;
212 };
213
214 struct emu10k1x_midi {
215 struct emu10k1x *emu;
216 struct snd_rawmidi *rmidi;
217 struct snd_rawmidi_substream *substream_input;
218 struct snd_rawmidi_substream *substream_output;
219 unsigned int midi_mode;
220 spinlock_t input_lock;
221 spinlock_t output_lock;
222 spinlock_t open_lock;
223 int tx_enable, rx_enable;
224 int port;
225 int ipr_tx, ipr_rx;
226 void (*interrupt)(struct emu10k1x *emu, unsigned int status);
227 };
228
229 // definition of the chip-specific record
230 struct emu10k1x {
231 struct snd_card *card;
232 struct pci_dev *pci;
233
234 unsigned long port;
235 struct resource *res_port;
236 int irq;
237
238 unsigned char revision; /* chip revision */
239 unsigned int serial; /* serial number */
240 unsigned short model; /* subsystem id */
241
242 spinlock_t emu_lock;
243 spinlock_t voice_lock;
244
245 struct snd_ac97 *ac97;
246 struct snd_pcm *pcm;
247
248 struct emu10k1x_voice voices[3];
249 struct emu10k1x_voice capture_voice;
250 u32 spdif_bits[3]; // SPDIF out setup
251
252 struct snd_dma_buffer dma_buffer;
253
254 struct emu10k1x_midi midi;
255 };
256
257 /* hardware definition */
258 static struct snd_pcm_hardware snd_emu10k1x_playback_hw = {
259 .info = (SNDRV_PCM_INFO_MMAP |
260 SNDRV_PCM_INFO_INTERLEAVED |
261 SNDRV_PCM_INFO_BLOCK_TRANSFER |
262 SNDRV_PCM_INFO_MMAP_VALID),
263 .formats = SNDRV_PCM_FMTBIT_S16_LE,
264 .rates = SNDRV_PCM_RATE_48000,
265 .rate_min = 48000,
266 .rate_max = 48000,
267 .channels_min = 2,
268 .channels_max = 2,
269 .buffer_bytes_max = (32*1024),
270 .period_bytes_min = 64,
271 .period_bytes_max = (16*1024),
272 .periods_min = 2,
273 .periods_max = 8,
274 .fifo_size = 0,
275 };
276
277 static struct snd_pcm_hardware snd_emu10k1x_capture_hw = {
278 .info = (SNDRV_PCM_INFO_MMAP |
279 SNDRV_PCM_INFO_INTERLEAVED |
280 SNDRV_PCM_INFO_BLOCK_TRANSFER |
281 SNDRV_PCM_INFO_MMAP_VALID),
282 .formats = SNDRV_PCM_FMTBIT_S16_LE,
283 .rates = SNDRV_PCM_RATE_48000,
284 .rate_min = 48000,
285 .rate_max = 48000,
286 .channels_min = 2,
287 .channels_max = 2,
288 .buffer_bytes_max = (32*1024),
289 .period_bytes_min = 64,
290 .period_bytes_max = (16*1024),
291 .periods_min = 2,
292 .periods_max = 2,
293 .fifo_size = 0,
294 };
295
296 static unsigned int snd_emu10k1x_ptr_read(struct emu10k1x * emu,
297 unsigned int reg,
298 unsigned int chn)
299 {
300 unsigned long flags;
301 unsigned int regptr, val;
302
303 regptr = (reg << 16) | chn;
304
305 spin_lock_irqsave(&emu->emu_lock, flags);
306 outl(regptr, emu->port + PTR);
307 val = inl(emu->port + DATA);
308 spin_unlock_irqrestore(&emu->emu_lock, flags);
309 return val;
310 }
311
312 static void snd_emu10k1x_ptr_write(struct emu10k1x *emu,
313 unsigned int reg,
314 unsigned int chn,
315 unsigned int data)
316 {
317 unsigned int regptr;
318 unsigned long flags;
319
320 regptr = (reg << 16) | chn;
321
322 spin_lock_irqsave(&emu->emu_lock, flags);
323 outl(regptr, emu->port + PTR);
324 outl(data, emu->port + DATA);
325 spin_unlock_irqrestore(&emu->emu_lock, flags);
326 }
327
328 static void snd_emu10k1x_intr_enable(struct emu10k1x *emu, unsigned int intrenb)
329 {
330 unsigned long flags;
331 unsigned int enable;
332
333 spin_lock_irqsave(&emu->emu_lock, flags);
334 enable = inl(emu->port + INTE) | intrenb;
335 outl(enable, emu->port + INTE);
336 spin_unlock_irqrestore(&emu->emu_lock, flags);
337 }
338
339 static void snd_emu10k1x_intr_disable(struct emu10k1x *emu, unsigned int intrenb)
340 {
341 unsigned long flags;
342 unsigned int enable;
343
344 spin_lock_irqsave(&emu->emu_lock, flags);
345 enable = inl(emu->port + INTE) & ~intrenb;
346 outl(enable, emu->port + INTE);
347 spin_unlock_irqrestore(&emu->emu_lock, flags);
348 }
349
350 static void snd_emu10k1x_gpio_write(struct emu10k1x *emu, unsigned int value)
351 {
352 unsigned long flags;
353
354 spin_lock_irqsave(&emu->emu_lock, flags);
355 outl(value, emu->port + GPIO);
356 spin_unlock_irqrestore(&emu->emu_lock, flags);
357 }
358
359 static void snd_emu10k1x_pcm_free_substream(struct snd_pcm_runtime *runtime)
360 {
361 kfree(runtime->private_data);
362 }
363
364 static void snd_emu10k1x_pcm_interrupt(struct emu10k1x *emu, struct emu10k1x_voice *voice)
365 {
366 struct emu10k1x_pcm *epcm;
367
368 if ((epcm = voice->epcm) == NULL)
369 return;
370 if (epcm->substream == NULL)
371 return;
372 #if 0
373 snd_printk(KERN_INFO "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 // snd_printk(KERN_INFO "trigger - emu10k1x = 0x%x, cmd = %i, pointer = %d\n", (int)emu, cmd, (int)substream->ops->pointer(substream));
492
493 switch (cmd) {
494 case SNDRV_PCM_TRIGGER_START:
495 if(runtime->periods == 2)
496 snd_emu10k1x_intr_enable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel);
497 else
498 snd_emu10k1x_intr_enable(emu, INTE_CH_0_LOOP << channel);
499 epcm->running = 1;
500 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|(TRIGGER_CHANNEL_0<<channel));
501 break;
502 case SNDRV_PCM_TRIGGER_STOP:
503 epcm->running = 0;
504 snd_emu10k1x_intr_disable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel);
505 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CHANNEL_0<<channel));
506 break;
507 default:
508 result = -EINVAL;
509 break;
510 }
511 return result;
512 }
513
514 /* pointer callback */
515 static snd_pcm_uframes_t
516 snd_emu10k1x_pcm_pointer(struct snd_pcm_substream *substream)
517 {
518 struct emu10k1x *emu = snd_pcm_substream_chip(substream);
519 struct snd_pcm_runtime *runtime = substream->runtime;
520 struct emu10k1x_pcm *epcm = runtime->private_data;
521 int channel = epcm->voice->number;
522 snd_pcm_uframes_t ptr = 0, ptr1 = 0, ptr2= 0,ptr3 = 0,ptr4 = 0;
523
524 if (!epcm->running)
525 return 0;
526
527 ptr3 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
528 ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel);
529 ptr4 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
530
531 if(ptr4 == 0 && ptr1 == frames_to_bytes(runtime, runtime->buffer_size))
532 return 0;
533
534 if (ptr3 != ptr4)
535 ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel);
536 ptr2 = bytes_to_frames(runtime, ptr1);
537 ptr2 += (ptr4 >> 3) * runtime->period_size;
538 ptr = ptr2;
539
540 if (ptr >= runtime->buffer_size)
541 ptr -= runtime->buffer_size;
542
543 return ptr;
544 }
545
546 /* operators */
547 static struct snd_pcm_ops snd_emu10k1x_playback_ops = {
548 .open = snd_emu10k1x_playback_open,
549 .close = snd_emu10k1x_playback_close,
550 .ioctl = snd_pcm_lib_ioctl,
551 .hw_params = snd_emu10k1x_pcm_hw_params,
552 .hw_free = snd_emu10k1x_pcm_hw_free,
553 .prepare = snd_emu10k1x_pcm_prepare,
554 .trigger = snd_emu10k1x_pcm_trigger,
555 .pointer = snd_emu10k1x_pcm_pointer,
556 };
557
558 /* open_capture callback */
559 static int snd_emu10k1x_pcm_open_capture(struct snd_pcm_substream *substream)
560 {
561 struct emu10k1x *chip = snd_pcm_substream_chip(substream);
562 struct emu10k1x_pcm *epcm;
563 struct snd_pcm_runtime *runtime = substream->runtime;
564 int err;
565
566 if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
567 return err;
568 if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
569 return err;
570
571 epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
572 if (epcm == NULL)
573 return -ENOMEM;
574
575 epcm->emu = chip;
576 epcm->substream = substream;
577
578 runtime->private_data = epcm;
579 runtime->private_free = snd_emu10k1x_pcm_free_substream;
580
581 runtime->hw = snd_emu10k1x_capture_hw;
582
583 return 0;
584 }
585
586 /* close callback */
587 static int snd_emu10k1x_pcm_close_capture(struct snd_pcm_substream *substream)
588 {
589 return 0;
590 }
591
592 /* hw_params callback */
593 static int snd_emu10k1x_pcm_hw_params_capture(struct snd_pcm_substream *substream,
594 struct snd_pcm_hw_params *hw_params)
595 {
596 struct snd_pcm_runtime *runtime = substream->runtime;
597 struct emu10k1x_pcm *epcm = runtime->private_data;
598
599 if (! epcm->voice) {
600 if (epcm->emu->capture_voice.use)
601 return -EBUSY;
602 epcm->voice = &epcm->emu->capture_voice;
603 epcm->voice->epcm = epcm;
604 epcm->voice->use = 1;
605 }
606
607 return snd_pcm_lib_malloc_pages(substream,
608 params_buffer_bytes(hw_params));
609 }
610
611 /* hw_free callback */
612 static int snd_emu10k1x_pcm_hw_free_capture(struct snd_pcm_substream *substream)
613 {
614 struct snd_pcm_runtime *runtime = substream->runtime;
615
616 struct emu10k1x_pcm *epcm;
617
618 if (runtime->private_data == NULL)
619 return 0;
620 epcm = runtime->private_data;
621
622 if (epcm->voice) {
623 epcm->voice->use = 0;
624 epcm->voice->epcm = NULL;
625 epcm->voice = NULL;
626 }
627
628 return snd_pcm_lib_free_pages(substream);
629 }
630
631 /* prepare capture callback */
632 static int snd_emu10k1x_pcm_prepare_capture(struct snd_pcm_substream *substream)
633 {
634 struct emu10k1x *emu = snd_pcm_substream_chip(substream);
635 struct snd_pcm_runtime *runtime = substream->runtime;
636
637 snd_emu10k1x_ptr_write(emu, CAPTURE_DMA_ADDR, 0, runtime->dma_addr);
638 snd_emu10k1x_ptr_write(emu, CAPTURE_BUFFER_SIZE, 0, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
639 snd_emu10k1x_ptr_write(emu, CAPTURE_POINTER, 0, 0);
640 snd_emu10k1x_ptr_write(emu, CAPTURE_UNKNOWN, 0, 0);
641
642 return 0;
643 }
644
645 /* trigger_capture callback */
646 static int snd_emu10k1x_pcm_trigger_capture(struct snd_pcm_substream *substream,
647 int cmd)
648 {
649 struct emu10k1x *emu = snd_pcm_substream_chip(substream);
650 struct snd_pcm_runtime *runtime = substream->runtime;
651 struct emu10k1x_pcm *epcm = runtime->private_data;
652 int result = 0;
653
654 switch (cmd) {
655 case SNDRV_PCM_TRIGGER_START:
656 snd_emu10k1x_intr_enable(emu, INTE_CAP_0_LOOP |
657 INTE_CAP_0_HALF_LOOP);
658 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|TRIGGER_CAPTURE);
659 epcm->running = 1;
660 break;
661 case SNDRV_PCM_TRIGGER_STOP:
662 epcm->running = 0;
663 snd_emu10k1x_intr_disable(emu, INTE_CAP_0_LOOP |
664 INTE_CAP_0_HALF_LOOP);
665 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CAPTURE));
666 break;
667 default:
668 result = -EINVAL;
669 break;
670 }
671 return result;
672 }
673
674 /* pointer_capture callback */
675 static snd_pcm_uframes_t
676 snd_emu10k1x_pcm_pointer_capture(struct snd_pcm_substream *substream)
677 {
678 struct emu10k1x *emu = snd_pcm_substream_chip(substream);
679 struct snd_pcm_runtime *runtime = substream->runtime;
680 struct emu10k1x_pcm *epcm = runtime->private_data;
681 snd_pcm_uframes_t ptr;
682
683 if (!epcm->running)
684 return 0;
685
686 ptr = bytes_to_frames(runtime, snd_emu10k1x_ptr_read(emu, CAPTURE_POINTER, 0));
687 if (ptr >= runtime->buffer_size)
688 ptr -= runtime->buffer_size;
689
690 return ptr;
691 }
692
693 static struct snd_pcm_ops snd_emu10k1x_capture_ops = {
694 .open = snd_emu10k1x_pcm_open_capture,
695 .close = snd_emu10k1x_pcm_close_capture,
696 .ioctl = snd_pcm_lib_ioctl,
697 .hw_params = snd_emu10k1x_pcm_hw_params_capture,
698 .hw_free = snd_emu10k1x_pcm_hw_free_capture,
699 .prepare = snd_emu10k1x_pcm_prepare_capture,
700 .trigger = snd_emu10k1x_pcm_trigger_capture,
701 .pointer = snd_emu10k1x_pcm_pointer_capture,
702 };
703
704 static unsigned short snd_emu10k1x_ac97_read(struct snd_ac97 *ac97,
705 unsigned short reg)
706 {
707 struct emu10k1x *emu = ac97->private_data;
708 unsigned long flags;
709 unsigned short val;
710
711 spin_lock_irqsave(&emu->emu_lock, flags);
712 outb(reg, emu->port + AC97ADDRESS);
713 val = inw(emu->port + AC97DATA);
714 spin_unlock_irqrestore(&emu->emu_lock, flags);
715 return val;
716 }
717
718 static void snd_emu10k1x_ac97_write(struct snd_ac97 *ac97,
719 unsigned short reg, unsigned short val)
720 {
721 struct emu10k1x *emu = ac97->private_data;
722 unsigned long flags;
723
724 spin_lock_irqsave(&emu->emu_lock, flags);
725 outb(reg, emu->port + AC97ADDRESS);
726 outw(val, emu->port + AC97DATA);
727 spin_unlock_irqrestore(&emu->emu_lock, flags);
728 }
729
730 static int snd_emu10k1x_ac97(struct emu10k1x *chip)
731 {
732 struct snd_ac97_bus *pbus;
733 struct snd_ac97_template ac97;
734 int err;
735 static struct snd_ac97_bus_ops ops = {
736 .write = snd_emu10k1x_ac97_write,
737 .read = snd_emu10k1x_ac97_read,
738 };
739
740 if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
741 return err;
742 pbus->no_vra = 1; /* we don't need VRA */
743
744 memset(&ac97, 0, sizeof(ac97));
745 ac97.private_data = chip;
746 ac97.scaps = AC97_SCAP_NO_SPDIF;
747 return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
748 }
749
750 static int snd_emu10k1x_free(struct emu10k1x *chip)
751 {
752 snd_emu10k1x_ptr_write(chip, TRIGGER_CHANNEL, 0, 0);
753 // disable interrupts
754 outl(0, chip->port + INTE);
755 // disable audio
756 outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG);
757
758 // release the i/o port
759 release_and_free_resource(chip->res_port);
760
761 // release the irq
762 if (chip->irq >= 0)
763 free_irq(chip->irq, chip);
764
765 // release the DMA
766 if (chip->dma_buffer.area) {
767 snd_dma_free_pages(&chip->dma_buffer);
768 }
769
770 pci_disable_device(chip->pci);
771
772 // release the data
773 kfree(chip);
774 return 0;
775 }
776
777 static int snd_emu10k1x_dev_free(struct snd_device *device)
778 {
779 struct emu10k1x *chip = device->device_data;
780 return snd_emu10k1x_free(chip);
781 }
782
783 static irqreturn_t snd_emu10k1x_interrupt(int irq, void *dev_id)
784 {
785 unsigned int status;
786
787 struct emu10k1x *chip = dev_id;
788 struct emu10k1x_voice *pvoice = chip->voices;
789 int i;
790 int mask;
791
792 status = inl(chip->port + IPR);
793
794 if (! status)
795 return IRQ_NONE;
796
797 // capture interrupt
798 if (status & (IPR_CAP_0_LOOP | IPR_CAP_0_HALF_LOOP)) {
799 struct emu10k1x_voice *pvoice = &chip->capture_voice;
800 if (pvoice->use)
801 snd_emu10k1x_pcm_interrupt(chip, pvoice);
802 else
803 snd_emu10k1x_intr_disable(chip,
804 INTE_CAP_0_LOOP |
805 INTE_CAP_0_HALF_LOOP);
806 }
807
808 mask = IPR_CH_0_LOOP|IPR_CH_0_HALF_LOOP;
809 for (i = 0; i < 3; i++) {
810 if (status & mask) {
811 if (pvoice->use)
812 snd_emu10k1x_pcm_interrupt(chip, pvoice);
813 else
814 snd_emu10k1x_intr_disable(chip, mask);
815 }
816 pvoice++;
817 mask <<= 1;
818 }
819
820 if (status & (IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY)) {
821 if (chip->midi.interrupt)
822 chip->midi.interrupt(chip, status);
823 else
824 snd_emu10k1x_intr_disable(chip, INTE_MIDITXENABLE|INTE_MIDIRXENABLE);
825 }
826
827 // acknowledge the interrupt if necessary
828 outl(status, chip->port + IPR);
829
830 // snd_printk(KERN_INFO "interrupt %08x\n", status);
831 return IRQ_HANDLED;
832 }
833
834 static int __devinit snd_emu10k1x_pcm(struct emu10k1x *emu, int device, struct snd_pcm **rpcm)
835 {
836 struct snd_pcm *pcm;
837 int err;
838 int capture = 0;
839
840 if (rpcm)
841 *rpcm = NULL;
842 if (device == 0)
843 capture = 1;
844
845 if ((err = snd_pcm_new(emu->card, "emu10k1x", device, 1, capture, &pcm)) < 0)
846 return err;
847
848 pcm->private_data = emu;
849
850 switch(device) {
851 case 0:
852 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops);
853 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1x_capture_ops);
854 break;
855 case 1:
856 case 2:
857 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops);
858 break;
859 }
860
861 pcm->info_flags = 0;
862 pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
863 switch(device) {
864 case 0:
865 strcpy(pcm->name, "EMU10K1X Front");
866 break;
867 case 1:
868 strcpy(pcm->name, "EMU10K1X Rear");
869 break;
870 case 2:
871 strcpy(pcm->name, "EMU10K1X Center/LFE");
872 break;
873 }
874 emu->pcm = pcm;
875
876 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
877 snd_dma_pci_data(emu->pci),
878 32*1024, 32*1024);
879
880 if (rpcm)
881 *rpcm = pcm;
882
883 return 0;
884 }
885
886 static int __devinit snd_emu10k1x_create(struct snd_card *card,
887 struct pci_dev *pci,
888 struct emu10k1x **rchip)
889 {
890 struct emu10k1x *chip;
891 int err;
892 int ch;
893 static struct snd_device_ops ops = {
894 .dev_free = snd_emu10k1x_dev_free,
895 };
896
897 *rchip = NULL;
898
899 if ((err = pci_enable_device(pci)) < 0)
900 return err;
901 if (pci_set_dma_mask(pci, DMA_28BIT_MASK) < 0 ||
902 pci_set_consistent_dma_mask(pci, DMA_28BIT_MASK) < 0) {
903 snd_printk(KERN_ERR "error to set 28bit mask DMA\n");
904 pci_disable_device(pci);
905 return -ENXIO;
906 }
907
908 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
909 if (chip == NULL) {
910 pci_disable_device(pci);
911 return -ENOMEM;
912 }
913
914 chip->card = card;
915 chip->pci = pci;
916 chip->irq = -1;
917
918 spin_lock_init(&chip->emu_lock);
919 spin_lock_init(&chip->voice_lock);
920
921 chip->port = pci_resource_start(pci, 0);
922 if ((chip->res_port = request_region(chip->port, 8,
923 "EMU10K1X")) == NULL) {
924 snd_printk(KERN_ERR "emu10k1x: cannot allocate the port 0x%lx\n", chip->port);
925 snd_emu10k1x_free(chip);
926 return -EBUSY;
927 }
928
929 if (request_irq(pci->irq, snd_emu10k1x_interrupt,
930 IRQF_SHARED, "EMU10K1X", chip)) {
931 snd_printk(KERN_ERR "emu10k1x: cannot grab irq %d\n", pci->irq);
932 snd_emu10k1x_free(chip);
933 return -EBUSY;
934 }
935 chip->irq = pci->irq;
936
937 if(snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
938 4 * 1024, &chip->dma_buffer) < 0) {
939 snd_emu10k1x_free(chip);
940 return -ENOMEM;
941 }
942
943 pci_set_master(pci);
944 /* read revision & serial */
945 pci_read_config_byte(pci, PCI_REVISION_ID, &chip->revision);
946 pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
947 pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
948 snd_printk(KERN_INFO "Model %04x Rev %08x Serial %08x\n", chip->model,
949 chip->revision, chip->serial);
950
951 outl(0, chip->port + INTE);
952
953 for(ch = 0; ch < 3; ch++) {
954 chip->voices[ch].emu = chip;
955 chip->voices[ch].number = ch;
956 }
957
958 /*
959 * Init to 0x02109204 :
960 * Clock accuracy = 0 (1000ppm)
961 * Sample Rate = 2 (48kHz)
962 * Audio Channel = 1 (Left of 2)
963 * Source Number = 0 (Unspecified)
964 * Generation Status = 1 (Original for Cat Code 12)
965 * Cat Code = 12 (Digital Signal Mixer)
966 * Mode = 0 (Mode 0)
967 * Emphasis = 0 (None)
968 * CP = 1 (Copyright unasserted)
969 * AN = 0 (Audio data)
970 * P = 0 (Consumer)
971 */
972 snd_emu10k1x_ptr_write(chip, SPCS0, 0,
973 chip->spdif_bits[0] =
974 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
975 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
976 SPCS_GENERATIONSTATUS | 0x00001200 |
977 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
978 snd_emu10k1x_ptr_write(chip, SPCS1, 0,
979 chip->spdif_bits[1] =
980 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
981 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
982 SPCS_GENERATIONSTATUS | 0x00001200 |
983 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
984 snd_emu10k1x_ptr_write(chip, SPCS2, 0,
985 chip->spdif_bits[2] =
986 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
987 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
988 SPCS_GENERATIONSTATUS | 0x00001200 |
989 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
990
991 snd_emu10k1x_ptr_write(chip, SPDIF_SELECT, 0, 0x700); // disable SPDIF
992 snd_emu10k1x_ptr_write(chip, ROUTING, 0, 0x1003F); // routing
993 snd_emu10k1x_gpio_write(chip, 0x1080); // analog mode
994
995 outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG);
996
997 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
998 chip, &ops)) < 0) {
999 snd_emu10k1x_free(chip);
1000 return err;
1001 }
1002 *rchip = chip;
1003 return 0;
1004 }
1005
1006 static void snd_emu10k1x_proc_reg_read(struct snd_info_entry *entry,
1007 struct snd_info_buffer *buffer)
1008 {
1009 struct emu10k1x *emu = entry->private_data;
1010 unsigned long value,value1,value2;
1011 unsigned long flags;
1012 int i;
1013
1014 snd_iprintf(buffer, "Registers:\n\n");
1015 for(i = 0; i < 0x20; i+=4) {
1016 spin_lock_irqsave(&emu->emu_lock, flags);
1017 value = inl(emu->port + i);
1018 spin_unlock_irqrestore(&emu->emu_lock, flags);
1019 snd_iprintf(buffer, "Register %02X: %08lX\n", i, value);
1020 }
1021 snd_iprintf(buffer, "\nRegisters\n\n");
1022 for(i = 0; i <= 0x48; i++) {
1023 value = snd_emu10k1x_ptr_read(emu, i, 0);
1024 if(i < 0x10 || (i >= 0x20 && i < 0x40)) {
1025 value1 = snd_emu10k1x_ptr_read(emu, i, 1);
1026 value2 = snd_emu10k1x_ptr_read(emu, i, 2);
1027 snd_iprintf(buffer, "%02X: %08lX %08lX %08lX\n", i, value, value1, value2);
1028 } else {
1029 snd_iprintf(buffer, "%02X: %08lX\n", i, value);
1030 }
1031 }
1032 }
1033
1034 static void snd_emu10k1x_proc_reg_write(struct snd_info_entry *entry,
1035 struct snd_info_buffer *buffer)
1036 {
1037 struct emu10k1x *emu = entry->private_data;
1038 char line[64];
1039 unsigned int reg, channel_id , val;
1040
1041 while (!snd_info_get_line(buffer, line, sizeof(line))) {
1042 if (sscanf(line, "%x %x %x", &reg, &channel_id, &val) != 3)
1043 continue;
1044
1045 if ((reg < 0x49) && (reg >=0) && (val <= 0xffffffff)
1046 && (channel_id >=0) && (channel_id <= 2) )
1047 snd_emu10k1x_ptr_write(emu, reg, channel_id, val);
1048 }
1049 }
1050
1051 static int __devinit snd_emu10k1x_proc_init(struct emu10k1x * emu)
1052 {
1053 struct snd_info_entry *entry;
1054
1055 if(! snd_card_proc_new(emu->card, "emu10k1x_regs", &entry)) {
1056 snd_info_set_text_ops(entry, emu, snd_emu10k1x_proc_reg_read);
1057 entry->c.text.write = snd_emu10k1x_proc_reg_write;
1058 entry->mode |= S_IWUSR;
1059 entry->private_data = emu;
1060 }
1061
1062 return 0;
1063 }
1064
1065 static int snd_emu10k1x_shared_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1066 {
1067 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1068 uinfo->count = 1;
1069 uinfo->value.integer.min = 0;
1070 uinfo->value.integer.max = 1;
1071 return 0;
1072 }
1073
1074 static int snd_emu10k1x_shared_spdif_get(struct snd_kcontrol *kcontrol,
1075 struct snd_ctl_elem_value *ucontrol)
1076 {
1077 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
1078
1079 ucontrol->value.integer.value[0] = (snd_emu10k1x_ptr_read(emu, SPDIF_SELECT, 0) == 0x700) ? 0 : 1;
1080
1081 return 0;
1082 }
1083
1084 static int snd_emu10k1x_shared_spdif_put(struct snd_kcontrol *kcontrol,
1085 struct snd_ctl_elem_value *ucontrol)
1086 {
1087 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
1088 unsigned int val;
1089 int change = 0;
1090
1091 val = ucontrol->value.integer.value[0] ;
1092
1093 if (val) {
1094 // enable spdif output
1095 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x000);
1096 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x700);
1097 snd_emu10k1x_gpio_write(emu, 0x1000);
1098 } else {
1099 // disable spdif output
1100 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x700);
1101 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x1003F);
1102 snd_emu10k1x_gpio_write(emu, 0x1080);
1103 }
1104 return change;
1105 }
1106
1107 static struct snd_kcontrol_new snd_emu10k1x_shared_spdif __devinitdata =
1108 {
1109 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1110 .name = "Analog/Digital Output Jack",
1111 .info = snd_emu10k1x_shared_spdif_info,
1112 .get = snd_emu10k1x_shared_spdif_get,
1113 .put = snd_emu10k1x_shared_spdif_put
1114 };
1115
1116 static int snd_emu10k1x_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1117 {
1118 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1119 uinfo->count = 1;
1120 return 0;
1121 }
1122
1123 static int snd_emu10k1x_spdif_get(struct snd_kcontrol *kcontrol,
1124 struct snd_ctl_elem_value *ucontrol)
1125 {
1126 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
1127 unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
1128
1129 ucontrol->value.iec958.status[0] = (emu->spdif_bits[idx] >> 0) & 0xff;
1130 ucontrol->value.iec958.status[1] = (emu->spdif_bits[idx] >> 8) & 0xff;
1131 ucontrol->value.iec958.status[2] = (emu->spdif_bits[idx] >> 16) & 0xff;
1132 ucontrol->value.iec958.status[3] = (emu->spdif_bits[idx] >> 24) & 0xff;
1133 return 0;
1134 }
1135
1136 static int snd_emu10k1x_spdif_get_mask(struct snd_kcontrol *kcontrol,
1137 struct snd_ctl_elem_value *ucontrol)
1138 {
1139 ucontrol->value.iec958.status[0] = 0xff;
1140 ucontrol->value.iec958.status[1] = 0xff;
1141 ucontrol->value.iec958.status[2] = 0xff;
1142 ucontrol->value.iec958.status[3] = 0xff;
1143 return 0;
1144 }
1145
1146 static int snd_emu10k1x_spdif_put(struct snd_kcontrol *kcontrol,
1147 struct snd_ctl_elem_value *ucontrol)
1148 {
1149 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
1150 unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
1151 int change;
1152 unsigned int val;
1153
1154 val = (ucontrol->value.iec958.status[0] << 0) |
1155 (ucontrol->value.iec958.status[1] << 8) |
1156 (ucontrol->value.iec958.status[2] << 16) |
1157 (ucontrol->value.iec958.status[3] << 24);
1158 change = val != emu->spdif_bits[idx];
1159 if (change) {
1160 snd_emu10k1x_ptr_write(emu, SPCS0 + idx, 0, val);
1161 emu->spdif_bits[idx] = val;
1162 }
1163 return change;
1164 }
1165
1166 static struct snd_kcontrol_new snd_emu10k1x_spdif_mask_control =
1167 {
1168 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1169 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1170 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
1171 .count = 3,
1172 .info = snd_emu10k1x_spdif_info,
1173 .get = snd_emu10k1x_spdif_get_mask
1174 };
1175
1176 static struct snd_kcontrol_new snd_emu10k1x_spdif_control =
1177 {
1178 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1179 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1180 .count = 3,
1181 .info = snd_emu10k1x_spdif_info,
1182 .get = snd_emu10k1x_spdif_get,
1183 .put = snd_emu10k1x_spdif_put
1184 };
1185
1186 static int __devinit snd_emu10k1x_mixer(struct emu10k1x *emu)
1187 {
1188 int err;
1189 struct snd_kcontrol *kctl;
1190 struct snd_card *card = emu->card;
1191
1192 if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_mask_control, emu)) == NULL)
1193 return -ENOMEM;
1194 if ((err = snd_ctl_add(card, kctl)))
1195 return err;
1196 if ((kctl = snd_ctl_new1(&snd_emu10k1x_shared_spdif, emu)) == NULL)
1197 return -ENOMEM;
1198 if ((err = snd_ctl_add(card, kctl)))
1199 return err;
1200 if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_control, emu)) == NULL)
1201 return -ENOMEM;
1202 if ((err = snd_ctl_add(card, kctl)))
1203 return err;
1204
1205 return 0;
1206 }
1207
1208 #define EMU10K1X_MIDI_MODE_INPUT (1<<0)
1209 #define EMU10K1X_MIDI_MODE_OUTPUT (1<<1)
1210
1211 static inline unsigned char mpu401_read(struct emu10k1x *emu, struct emu10k1x_midi *mpu, int idx)
1212 {
1213 return (unsigned char)snd_emu10k1x_ptr_read(emu, mpu->port + idx, 0);
1214 }
1215
1216 static inline void mpu401_write(struct emu10k1x *emu, struct emu10k1x_midi *mpu, int data, int idx)
1217 {
1218 snd_emu10k1x_ptr_write(emu, mpu->port + idx, 0, data);
1219 }
1220
1221 #define mpu401_write_data(emu, mpu, data) mpu401_write(emu, mpu, data, 0)
1222 #define mpu401_write_cmd(emu, mpu, data) mpu401_write(emu, mpu, data, 1)
1223 #define mpu401_read_data(emu, mpu) mpu401_read(emu, mpu, 0)
1224 #define mpu401_read_stat(emu, mpu) mpu401_read(emu, mpu, 1)
1225
1226 #define mpu401_input_avail(emu,mpu) (!(mpu401_read_stat(emu,mpu) & 0x80))
1227 #define mpu401_output_ready(emu,mpu) (!(mpu401_read_stat(emu,mpu) & 0x40))
1228
1229 #define MPU401_RESET 0xff
1230 #define MPU401_ENTER_UART 0x3f
1231 #define MPU401_ACK 0xfe
1232
1233 static void mpu401_clear_rx(struct emu10k1x *emu, struct emu10k1x_midi *mpu)
1234 {
1235 int timeout = 100000;
1236 for (; timeout > 0 && mpu401_input_avail(emu, mpu); timeout--)
1237 mpu401_read_data(emu, mpu);
1238 #ifdef CONFIG_SND_DEBUG
1239 if (timeout <= 0)
1240 snd_printk(KERN_ERR "cmd: clear rx timeout (status = 0x%x)\n", mpu401_read_stat(emu, mpu));
1241 #endif
1242 }
1243
1244 /*
1245
1246 */
1247
1248 static void do_emu10k1x_midi_interrupt(struct emu10k1x *emu,
1249 struct emu10k1x_midi *midi, unsigned int status)
1250 {
1251 unsigned char byte;
1252
1253 if (midi->rmidi == NULL) {
1254 snd_emu10k1x_intr_disable(emu, midi->tx_enable | midi->rx_enable);
1255 return;
1256 }
1257
1258 spin_lock(&midi->input_lock);
1259 if ((status & midi->ipr_rx) && mpu401_input_avail(emu, midi)) {
1260 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1261 mpu401_clear_rx(emu, midi);
1262 } else {
1263 byte = mpu401_read_data(emu, midi);
1264 if (midi->substream_input)
1265 snd_rawmidi_receive(midi->substream_input, &byte, 1);
1266 }
1267 }
1268 spin_unlock(&midi->input_lock);
1269
1270 spin_lock(&midi->output_lock);
1271 if ((status & midi->ipr_tx) && mpu401_output_ready(emu, midi)) {
1272 if (midi->substream_output &&
1273 snd_rawmidi_transmit(midi->substream_output, &byte, 1) == 1) {
1274 mpu401_write_data(emu, midi, byte);
1275 } else {
1276 snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1277 }
1278 }
1279 spin_unlock(&midi->output_lock);
1280 }
1281
1282 static void snd_emu10k1x_midi_interrupt(struct emu10k1x *emu, unsigned int status)
1283 {
1284 do_emu10k1x_midi_interrupt(emu, &emu->midi, status);
1285 }
1286
1287 static int snd_emu10k1x_midi_cmd(struct emu10k1x * emu,
1288 struct emu10k1x_midi *midi, unsigned char cmd, int ack)
1289 {
1290 unsigned long flags;
1291 int timeout, ok;
1292
1293 spin_lock_irqsave(&midi->input_lock, flags);
1294 mpu401_write_data(emu, midi, 0x00);
1295 /* mpu401_clear_rx(emu, midi); */
1296
1297 mpu401_write_cmd(emu, midi, cmd);
1298 if (ack) {
1299 ok = 0;
1300 timeout = 10000;
1301 while (!ok && timeout-- > 0) {
1302 if (mpu401_input_avail(emu, midi)) {
1303 if (mpu401_read_data(emu, midi) == MPU401_ACK)
1304 ok = 1;
1305 }
1306 }
1307 if (!ok && mpu401_read_data(emu, midi) == MPU401_ACK)
1308 ok = 1;
1309 } else {
1310 ok = 1;
1311 }
1312 spin_unlock_irqrestore(&midi->input_lock, flags);
1313 if (!ok) {
1314 snd_printk(KERN_ERR "midi_cmd: 0x%x failed at 0x%lx (status = 0x%x, data = 0x%x)!!!\n",
1315 cmd, emu->port,
1316 mpu401_read_stat(emu, midi),
1317 mpu401_read_data(emu, midi));
1318 return 1;
1319 }
1320 return 0;
1321 }
1322
1323 static int snd_emu10k1x_midi_input_open(struct snd_rawmidi_substream *substream)
1324 {
1325 struct emu10k1x *emu;
1326 struct emu10k1x_midi *midi = substream->rmidi->private_data;
1327 unsigned long flags;
1328
1329 emu = midi->emu;
1330 snd_assert(emu, return -ENXIO);
1331 spin_lock_irqsave(&midi->open_lock, flags);
1332 midi->midi_mode |= EMU10K1X_MIDI_MODE_INPUT;
1333 midi->substream_input = substream;
1334 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) {
1335 spin_unlock_irqrestore(&midi->open_lock, flags);
1336 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1))
1337 goto error_out;
1338 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1))
1339 goto error_out;
1340 } else {
1341 spin_unlock_irqrestore(&midi->open_lock, flags);
1342 }
1343 return 0;
1344
1345 error_out:
1346 return -EIO;
1347 }
1348
1349 static int snd_emu10k1x_midi_output_open(struct snd_rawmidi_substream *substream)
1350 {
1351 struct emu10k1x *emu;
1352 struct emu10k1x_midi *midi = substream->rmidi->private_data;
1353 unsigned long flags;
1354
1355 emu = midi->emu;
1356 snd_assert(emu, return -ENXIO);
1357 spin_lock_irqsave(&midi->open_lock, flags);
1358 midi->midi_mode |= EMU10K1X_MIDI_MODE_OUTPUT;
1359 midi->substream_output = substream;
1360 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1361 spin_unlock_irqrestore(&midi->open_lock, flags);
1362 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1))
1363 goto error_out;
1364 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1))
1365 goto error_out;
1366 } else {
1367 spin_unlock_irqrestore(&midi->open_lock, flags);
1368 }
1369 return 0;
1370
1371 error_out:
1372 return -EIO;
1373 }
1374
1375 static int snd_emu10k1x_midi_input_close(struct snd_rawmidi_substream *substream)
1376 {
1377 struct emu10k1x *emu;
1378 struct emu10k1x_midi *midi = substream->rmidi->private_data;
1379 unsigned long flags;
1380 int err = 0;
1381
1382 emu = midi->emu;
1383 snd_assert(emu, return -ENXIO);
1384 spin_lock_irqsave(&midi->open_lock, flags);
1385 snd_emu10k1x_intr_disable(emu, midi->rx_enable);
1386 midi->midi_mode &= ~EMU10K1X_MIDI_MODE_INPUT;
1387 midi->substream_input = NULL;
1388 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) {
1389 spin_unlock_irqrestore(&midi->open_lock, flags);
1390 err = snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0);
1391 } else {
1392 spin_unlock_irqrestore(&midi->open_lock, flags);
1393 }
1394 return err;
1395 }
1396
1397 static int snd_emu10k1x_midi_output_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 snd_assert(emu, return -ENXIO);
1406 spin_lock_irqsave(&midi->open_lock, flags);
1407 snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1408 midi->midi_mode &= ~EMU10K1X_MIDI_MODE_OUTPUT;
1409 midi->substream_output = NULL;
1410 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1411 spin_unlock_irqrestore(&midi->open_lock, flags);
1412 err = snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0);
1413 } else {
1414 spin_unlock_irqrestore(&midi->open_lock, flags);
1415 }
1416 return err;
1417 }
1418
1419 static void snd_emu10k1x_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
1420 {
1421 struct emu10k1x *emu;
1422 struct emu10k1x_midi *midi = substream->rmidi->private_data;
1423 emu = midi->emu;
1424 snd_assert(emu, return);
1425
1426 if (up)
1427 snd_emu10k1x_intr_enable(emu, midi->rx_enable);
1428 else
1429 snd_emu10k1x_intr_disable(emu, midi->rx_enable);
1430 }
1431
1432 static void snd_emu10k1x_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
1433 {
1434 struct emu10k1x *emu;
1435 struct emu10k1x_midi *midi = substream->rmidi->private_data;
1436 unsigned long flags;
1437
1438 emu = midi->emu;
1439 snd_assert(emu, return);
1440
1441 if (up) {
1442 int max = 4;
1443 unsigned char byte;
1444
1445 /* try to send some amount of bytes here before interrupts */
1446 spin_lock_irqsave(&midi->output_lock, flags);
1447 while (max > 0) {
1448 if (mpu401_output_ready(emu, midi)) {
1449 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT) ||
1450 snd_rawmidi_transmit(substream, &byte, 1) != 1) {
1451 /* no more data */
1452 spin_unlock_irqrestore(&midi->output_lock, flags);
1453 return;
1454 }
1455 mpu401_write_data(emu, midi, byte);
1456 max--;
1457 } else {
1458 break;
1459 }
1460 }
1461 spin_unlock_irqrestore(&midi->output_lock, flags);
1462 snd_emu10k1x_intr_enable(emu, midi->tx_enable);
1463 } else {
1464 snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1465 }
1466 }
1467
1468 /*
1469
1470 */
1471
1472 static struct snd_rawmidi_ops snd_emu10k1x_midi_output =
1473 {
1474 .open = snd_emu10k1x_midi_output_open,
1475 .close = snd_emu10k1x_midi_output_close,
1476 .trigger = snd_emu10k1x_midi_output_trigger,
1477 };
1478
1479 static struct snd_rawmidi_ops snd_emu10k1x_midi_input =
1480 {
1481 .open = snd_emu10k1x_midi_input_open,
1482 .close = snd_emu10k1x_midi_input_close,
1483 .trigger = snd_emu10k1x_midi_input_trigger,
1484 };
1485
1486 static void snd_emu10k1x_midi_free(struct snd_rawmidi *rmidi)
1487 {
1488 struct emu10k1x_midi *midi = rmidi->private_data;
1489 midi->interrupt = NULL;
1490 midi->rmidi = NULL;
1491 }
1492
1493 static int __devinit emu10k1x_midi_init(struct emu10k1x *emu,
1494 struct emu10k1x_midi *midi, int device, char *name)
1495 {
1496 struct snd_rawmidi *rmidi;
1497 int err;
1498
1499 if ((err = snd_rawmidi_new(emu->card, name, device, 1, 1, &rmidi)) < 0)
1500 return err;
1501 midi->emu = emu;
1502 spin_lock_init(&midi->open_lock);
1503 spin_lock_init(&midi->input_lock);
1504 spin_lock_init(&midi->output_lock);
1505 strcpy(rmidi->name, name);
1506 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_emu10k1x_midi_output);
1507 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_emu10k1x_midi_input);
1508 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT |
1509 SNDRV_RAWMIDI_INFO_INPUT |
1510 SNDRV_RAWMIDI_INFO_DUPLEX;
1511 rmidi->private_data = midi;
1512 rmidi->private_free = snd_emu10k1x_midi_free;
1513 midi->rmidi = rmidi;
1514 return 0;
1515 }
1516
1517 static int __devinit snd_emu10k1x_midi(struct emu10k1x *emu)
1518 {
1519 struct emu10k1x_midi *midi = &emu->midi;
1520 int err;
1521
1522 if ((err = emu10k1x_midi_init(emu, midi, 0, "EMU10K1X MPU-401 (UART)")) < 0)
1523 return err;
1524
1525 midi->tx_enable = INTE_MIDITXENABLE;
1526 midi->rx_enable = INTE_MIDIRXENABLE;
1527 midi->port = MUDATA;
1528 midi->ipr_tx = IPR_MIDITRANSBUFEMPTY;
1529 midi->ipr_rx = IPR_MIDIRECVBUFEMPTY;
1530 midi->interrupt = snd_emu10k1x_midi_interrupt;
1531 return 0;
1532 }
1533
1534 static int __devinit snd_emu10k1x_probe(struct pci_dev *pci,
1535 const struct pci_device_id *pci_id)
1536 {
1537 static int dev;
1538 struct snd_card *card;
1539 struct emu10k1x *chip;
1540 int err;
1541
1542 if (dev >= SNDRV_CARDS)
1543 return -ENODEV;
1544 if (!enable[dev]) {
1545 dev++;
1546 return -ENOENT;
1547 }
1548
1549 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1550 if (card == NULL)
1551 return -ENOMEM;
1552
1553 if ((err = snd_emu10k1x_create(card, pci, &chip)) < 0) {
1554 snd_card_free(card);
1555 return err;
1556 }
1557
1558 if ((err = snd_emu10k1x_pcm(chip, 0, NULL)) < 0) {
1559 snd_card_free(card);
1560 return err;
1561 }
1562 if ((err = snd_emu10k1x_pcm(chip, 1, NULL)) < 0) {
1563 snd_card_free(card);
1564 return err;
1565 }
1566 if ((err = snd_emu10k1x_pcm(chip, 2, NULL)) < 0) {
1567 snd_card_free(card);
1568 return err;
1569 }
1570
1571 if ((err = snd_emu10k1x_ac97(chip)) < 0) {
1572 snd_card_free(card);
1573 return err;
1574 }
1575
1576 if ((err = snd_emu10k1x_mixer(chip)) < 0) {
1577 snd_card_free(card);
1578 return err;
1579 }
1580
1581 if ((err = snd_emu10k1x_midi(chip)) < 0) {
1582 snd_card_free(card);
1583 return err;
1584 }
1585
1586 snd_emu10k1x_proc_init(chip);
1587
1588 strcpy(card->driver, "EMU10K1X");
1589 strcpy(card->shortname, "Dell Sound Blaster Live!");
1590 sprintf(card->longname, "%s at 0x%lx irq %i",
1591 card->shortname, chip->port, chip->irq);
1592
1593 if ((err = snd_card_register(card)) < 0) {
1594 snd_card_free(card);
1595 return err;
1596 }
1597
1598 pci_set_drvdata(pci, card);
1599 dev++;
1600 return 0;
1601 }
1602
1603 static void __devexit snd_emu10k1x_remove(struct pci_dev *pci)
1604 {
1605 snd_card_free(pci_get_drvdata(pci));
1606 pci_set_drvdata(pci, NULL);
1607 }
1608
1609 // PCI IDs
1610 static struct pci_device_id snd_emu10k1x_ids[] = {
1611 { 0x1102, 0x0006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* Dell OEM version (EMU10K1) */
1612 { 0, }
1613 };
1614 MODULE_DEVICE_TABLE(pci, snd_emu10k1x_ids);
1615
1616 // pci_driver definition
1617 static struct pci_driver driver = {
1618 .name = "EMU10K1X",
1619 .id_table = snd_emu10k1x_ids,
1620 .probe = snd_emu10k1x_probe,
1621 .remove = __devexit_p(snd_emu10k1x_remove),
1622 };
1623
1624 // initialization of the module
1625 static int __init alsa_card_emu10k1x_init(void)
1626 {
1627 return pci_register_driver(&driver);
1628 }
1629
1630 // clean up the module
1631 static void __exit alsa_card_emu10k1x_exit(void)
1632 {
1633 pci_unregister_driver(&driver);
1634 }
1635
1636 module_init(alsa_card_emu10k1x_init)
1637 module_exit(alsa_card_emu10k1x_exit)
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