1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
4 * Driver EMU10K1X chips
5 *
6 * Parts of this code were adapted from audigyls.c driver which is
7 * Copyright (c) by James Courtier-Dutton <James@superbug.demon.co.uk>
8 *
9 * BUGS:
10 * --
11 *
12 * TODO:
13 *
14 * Chips (SB0200 model):
15 * - EMU10K1X-DBQ
16 * - STAC 9708T
17 */
18 #include <linux/init.h>
19 #include <linux/interrupt.h>
20 #include <linux/pci.h>
21 #include <linux/dma-mapping.h>
22 #include <linux/slab.h>
23 #include <linux/module.h>
24 #include <sound/core.h>
25 #include <sound/initval.h>
26 #include <sound/pcm.h>
27 #include <sound/ac97_codec.h>
28 #include <sound/info.h>
29 #include <sound/rawmidi.h>
30
31 MODULE_AUTHOR("Francisco Moraes <fmoraes@nc.rr.com>");
32 MODULE_DESCRIPTION("EMU10K1X");
33 MODULE_LICENSE("GPL");
34 MODULE_SUPPORTED_DEVICE("{{Dell Creative Labs,SB Live!}");
35
36 // module parameters (see "Module Parameters")
37 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
38 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
39 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
40
41 module_param_array(index, int, NULL, 0444);
42 MODULE_PARM_DESC(index, "Index value for the EMU10K1X soundcard.");
43 module_param_array(id, charp, NULL, 0444);
44 MODULE_PARM_DESC(id, "ID string for the EMU10K1X soundcard.");
45 module_param_array(enable, bool, NULL, 0444);
46 MODULE_PARM_DESC(enable, "Enable the EMU10K1X soundcard.");
47
48
49 // some definitions were borrowed from emu10k1 driver as they seem to be the same
50 /************************************************************************************************/
51 /* PCI function 0 registers, address = <val> + PCIBASE0 */
52 /************************************************************************************************/
53
54 #define PTR 0x00 /* Indexed register set pointer register */
55 /* NOTE: The CHANNELNUM and ADDRESS words can */
56 /* be modified independently of each other. */
57
58 #define DATA 0x04 /* Indexed register set data register */
59
60 #define IPR 0x08 /* Global interrupt pending register */
61 /* Clear pending interrupts by writing a 1 to */
62 /* the relevant bits and zero to the other bits */
63 #define IPR_MIDITRANSBUFEMPTY 0x00000001 /* MIDI UART transmit buffer empty */
64 #define IPR_MIDIRECVBUFEMPTY 0x00000002 /* MIDI UART receive buffer empty */
65 #define IPR_CH_0_LOOP 0x00000800 /* Channel 0 loop */
66 #define IPR_CH_0_HALF_LOOP 0x00000100 /* Channel 0 half loop */
67 #define IPR_CAP_0_LOOP 0x00080000 /* Channel capture loop */
68 #define IPR_CAP_0_HALF_LOOP 0x00010000 /* Channel capture half loop */
69
70 #define INTE 0x0c /* Interrupt enable register */
71 #define INTE_MIDITXENABLE 0x00000001 /* Enable MIDI transmit-buffer-empty interrupts */
72 #define INTE_MIDIRXENABLE 0x00000002 /* Enable MIDI receive-buffer-empty interrupts */
73 #define INTE_CH_0_LOOP 0x00000800 /* Channel 0 loop */
74 #define INTE_CH_0_HALF_LOOP 0x00000100 /* Channel 0 half loop */
75 #define INTE_CAP_0_LOOP 0x00080000 /* Channel capture loop */
76 #define INTE_CAP_0_HALF_LOOP 0x00010000 /* Channel capture half loop */
77
78 #define HCFG 0x14 /* Hardware config register */
79
80 #define HCFG_LOCKSOUNDCACHE 0x00000008 /* 1 = Cancel bustmaster accesses to soundcache */
81 /* NOTE: This should generally never be used. */
82 #define HCFG_AUDIOENABLE 0x00000001 /* 0 = CODECs transmit zero-valued samples */
83 /* Should be set to 1 when the EMU10K1 is */
84 /* completely initialized. */
85 #define GPIO 0x18 /* Defaults: 00001080-Analog, 00001000-SPDIF. */
86
87
88 #define AC97DATA 0x1c /* AC97 register set data register (16 bit) */
89
90 #define AC97ADDRESS 0x1e /* AC97 register set address register (8 bit) */
91
92 /********************************************************************************************************/
93 /* Emu10k1x pointer-offset register set, accessed through the PTR and DATA registers */
94 /********************************************************************************************************/
95 #define PLAYBACK_LIST_ADDR 0x00 /* Base DMA address of a list of pointers to each period/size */
96 /* One list entry: 4 bytes for DMA address,
97 * 4 bytes for period_size << 16.
98 * One list entry is 8 bytes long.
99 * One list entry for each period in the buffer.
100 */
101 #define PLAYBACK_LIST_SIZE 0x01 /* Size of list in bytes << 16. E.g. 8 periods -> 0x00380000 */
102 #define PLAYBACK_LIST_PTR 0x02 /* Pointer to the current period being played */
103 #define PLAYBACK_DMA_ADDR 0x04 /* Playback DMA address */
104 #define PLAYBACK_PERIOD_SIZE 0x05 /* Playback period size */
105 #define PLAYBACK_POINTER 0x06 /* Playback period pointer. Sample currently in DAC */
106 #define PLAYBACK_UNKNOWN1 0x07
107 #define PLAYBACK_UNKNOWN2 0x08
108
109 /* Only one capture channel supported */
110 #define CAPTURE_DMA_ADDR 0x10 /* Capture DMA address */
111 #define CAPTURE_BUFFER_SIZE 0x11 /* Capture buffer size */
112 #define CAPTURE_POINTER 0x12 /* Capture buffer pointer. Sample currently in ADC */
113 #define CAPTURE_UNKNOWN 0x13
114
115 /* From 0x20 - 0x3f, last samples played on each channel */
116
117 #define TRIGGER_CHANNEL 0x40 /* Trigger channel playback */
118 #define TRIGGER_CHANNEL_0 0x00000001 /* Trigger channel 0 */
119 #define TRIGGER_CHANNEL_1 0x00000002 /* Trigger channel 1 */
120 #define TRIGGER_CHANNEL_2 0x00000004 /* Trigger channel 2 */
121 #define TRIGGER_CAPTURE 0x00000100 /* Trigger capture channel */
122
123 #define ROUTING 0x41 /* Setup sound routing ? */
124 #define ROUTING_FRONT_LEFT 0x00000001
125 #define ROUTING_FRONT_RIGHT 0x00000002
126 #define ROUTING_REAR_LEFT 0x00000004
127 #define ROUTING_REAR_RIGHT 0x00000008
128 #define ROUTING_CENTER_LFE 0x00010000
129
130 #define SPCS0 0x42 /* SPDIF output Channel Status 0 register */
131
132 #define SPCS1 0x43 /* SPDIF output Channel Status 1 register */
133
134 #define SPCS2 0x44 /* SPDIF output Channel Status 2 register */
135
136 #define SPCS_CLKACCYMASK 0x30000000 /* Clock accuracy */
137 #define SPCS_CLKACCY_1000PPM 0x00000000 /* 1000 parts per million */
138 #define SPCS_CLKACCY_50PPM 0x10000000 /* 50 parts per million */
139 #define SPCS_CLKACCY_VARIABLE 0x20000000 /* Variable accuracy */
140 #define SPCS_SAMPLERATEMASK 0x0f000000 /* Sample rate */
141 #define SPCS_SAMPLERATE_44 0x00000000 /* 44.1kHz sample rate */
142 #define SPCS_SAMPLERATE_48 0x02000000 /* 48kHz sample rate */
143 #define SPCS_SAMPLERATE_32 0x03000000 /* 32kHz sample rate */
144 #define SPCS_CHANNELNUMMASK 0x00f00000 /* Channel number */
145 #define SPCS_CHANNELNUM_UNSPEC 0x00000000 /* Unspecified channel number */
146 #define SPCS_CHANNELNUM_LEFT 0x00100000 /* Left channel */
147 #define SPCS_CHANNELNUM_RIGHT 0x00200000 /* Right channel */
148 #define SPCS_SOURCENUMMASK 0x000f0000 /* Source number */
149 #define SPCS_SOURCENUM_UNSPEC 0x00000000 /* Unspecified source number */
150 #define SPCS_GENERATIONSTATUS 0x00008000 /* Originality flag (see IEC-958 spec) */
151 #define SPCS_CATEGORYCODEMASK 0x00007f00 /* Category code (see IEC-958 spec) */
152 #define SPCS_MODEMASK 0x000000c0 /* Mode (see IEC-958 spec) */
153 #define SPCS_EMPHASISMASK 0x00000038 /* Emphasis */
154 #define SPCS_EMPHASIS_NONE 0x00000000 /* No emphasis */
155 #define SPCS_EMPHASIS_50_15 0x00000008 /* 50/15 usec 2 channel */
156 #define SPCS_COPYRIGHT 0x00000004 /* Copyright asserted flag -- do not modify */
157 #define SPCS_NOTAUDIODATA 0x00000002 /* 0 = Digital audio, 1 = not audio */
158 #define SPCS_PROFESSIONAL 0x00000001 /* 0 = Consumer (IEC-958), 1 = pro (AES3-1992) */
159
160 #define SPDIF_SELECT 0x45 /* Enables SPDIF or Analogue outputs 0-Analogue, 0x700-SPDIF */
161
162 /* This is the MPU port on the card */
163 #define MUDATA 0x47
164 #define MUCMD 0x48
165 #define MUSTAT MUCMD
166
167 /* From 0x50 - 0x5f, last samples captured */
168
169 /*
170 * The hardware has 3 channels for playback and 1 for capture.
171 * - channel 0 is the front channel
172 * - channel 1 is the rear channel
173 * - channel 2 is the center/lfe channel
174 * Volume is controlled by the AC97 for the front and rear channels by
175 * the PCM Playback Volume, Sigmatel Surround Playback Volume and
176 * Surround Playback Volume. The Sigmatel 4-Speaker Stereo switch affects
177 * the front/rear channel mixing in the REAR OUT jack. When using the
178 * 4-Speaker Stereo, both front and rear channels will be mixed in the
179 * REAR OUT.
180 * The center/lfe channel has no volume control and cannot be muted during
181 * playback.
182 */
183
184 struct emu10k1x_voice {
185 struct emu10k1x *emu;
186 int number;
187 int use;
188
189 struct emu10k1x_pcm *epcm;
190 };
191
192 struct emu10k1x_pcm {
193 struct emu10k1x *emu;
194 struct snd_pcm_substream *substream;
195 struct emu10k1x_voice *voice;
196 unsigned short running;
197 };
198
199 struct emu10k1x_midi {
200 struct emu10k1x *emu;
201 struct snd_rawmidi *rmidi;
202 struct snd_rawmidi_substream *substream_input;
203 struct snd_rawmidi_substream *substream_output;
204 unsigned int midi_mode;
205 spinlock_t input_lock;
206 spinlock_t output_lock;
207 spinlock_t open_lock;
208 int tx_enable, rx_enable;
209 int port;
210 int ipr_tx, ipr_rx;
211 void (*interrupt)(struct emu10k1x *emu, unsigned int status);
212 };
213
214 // definition of the chip-specific record
215 struct emu10k1x {
216 struct snd_card *card;
217 struct pci_dev *pci;
218
219 unsigned long port;
220 struct resource *res_port;
221 int irq;
222
223 unsigned char revision; /* chip revision */
224 unsigned int serial; /* serial number */
225 unsigned short model; /* subsystem id */
226
227 spinlock_t emu_lock;
228 spinlock_t voice_lock;
229
230 struct snd_ac97 *ac97;
231 struct snd_pcm *pcm;
232
233 struct emu10k1x_voice voices[3];
234 struct emu10k1x_voice capture_voice;
235 u32 spdif_bits[3]; // SPDIF out setup
236
237 struct snd_dma_buffer dma_buffer;
238
239 struct emu10k1x_midi midi;
240 };
241
242 /* hardware definition */
243 static const struct snd_pcm_hardware snd_emu10k1x_playback_hw = {
244 .info = (SNDRV_PCM_INFO_MMAP |
245 SNDRV_PCM_INFO_INTERLEAVED |
246 SNDRV_PCM_INFO_BLOCK_TRANSFER |
247 SNDRV_PCM_INFO_MMAP_VALID),
248 .formats = SNDRV_PCM_FMTBIT_S16_LE,
249 .rates = SNDRV_PCM_RATE_48000,
250 .rate_min = 48000,
251 .rate_max = 48000,
252 .channels_min = 2,
253 .channels_max = 2,
254 .buffer_bytes_max = (32*1024),
255 .period_bytes_min = 64,
256 .period_bytes_max = (16*1024),
257 .periods_min = 2,
258 .periods_max = 8,
259 .fifo_size = 0,
260 };
261
262 static const struct snd_pcm_hardware snd_emu10k1x_capture_hw = {
263 .info = (SNDRV_PCM_INFO_MMAP |
264 SNDRV_PCM_INFO_INTERLEAVED |
265 SNDRV_PCM_INFO_BLOCK_TRANSFER |
266 SNDRV_PCM_INFO_MMAP_VALID),
267 .formats = SNDRV_PCM_FMTBIT_S16_LE,
268 .rates = SNDRV_PCM_RATE_48000,
269 .rate_min = 48000,
270 .rate_max = 48000,
271 .channels_min = 2,
272 .channels_max = 2,
273 .buffer_bytes_max = (32*1024),
274 .period_bytes_min = 64,
275 .period_bytes_max = (16*1024),
276 .periods_min = 2,
277 .periods_max = 2,
278 .fifo_size = 0,
279 };
280
snd_emu10k1x_ptr_read(struct emu10k1x * emu,unsigned int reg,unsigned int chn)281 static unsigned int snd_emu10k1x_ptr_read(struct emu10k1x * emu,
282 unsigned int reg,
283 unsigned int chn)
284 {
285 unsigned long flags;
286 unsigned int regptr, val;
287
288 regptr = (reg << 16) | chn;
289
290 spin_lock_irqsave(&emu->emu_lock, flags);
291 outl(regptr, emu->port + PTR);
292 val = inl(emu->port + DATA);
293 spin_unlock_irqrestore(&emu->emu_lock, flags);
294 return val;
295 }
296
snd_emu10k1x_ptr_write(struct emu10k1x * emu,unsigned int reg,unsigned int chn,unsigned int data)297 static void snd_emu10k1x_ptr_write(struct emu10k1x *emu,
298 unsigned int reg,
299 unsigned int chn,
300 unsigned int data)
301 {
302 unsigned int regptr;
303 unsigned long flags;
304
305 regptr = (reg << 16) | chn;
306
307 spin_lock_irqsave(&emu->emu_lock, flags);
308 outl(regptr, emu->port + PTR);
309 outl(data, emu->port + DATA);
310 spin_unlock_irqrestore(&emu->emu_lock, flags);
311 }
312
snd_emu10k1x_intr_enable(struct emu10k1x * emu,unsigned int intrenb)313 static void snd_emu10k1x_intr_enable(struct emu10k1x *emu, unsigned int intrenb)
314 {
315 unsigned long flags;
316 unsigned int intr_enable;
317
318 spin_lock_irqsave(&emu->emu_lock, flags);
319 intr_enable = inl(emu->port + INTE) | intrenb;
320 outl(intr_enable, emu->port + INTE);
321 spin_unlock_irqrestore(&emu->emu_lock, flags);
322 }
323
snd_emu10k1x_intr_disable(struct emu10k1x * emu,unsigned int intrenb)324 static void snd_emu10k1x_intr_disable(struct emu10k1x *emu, unsigned int intrenb)
325 {
326 unsigned long flags;
327 unsigned int intr_enable;
328
329 spin_lock_irqsave(&emu->emu_lock, flags);
330 intr_enable = inl(emu->port + INTE) & ~intrenb;
331 outl(intr_enable, emu->port + INTE);
332 spin_unlock_irqrestore(&emu->emu_lock, flags);
333 }
334
snd_emu10k1x_gpio_write(struct emu10k1x * emu,unsigned int value)335 static void snd_emu10k1x_gpio_write(struct emu10k1x *emu, unsigned int value)
336 {
337 unsigned long flags;
338
339 spin_lock_irqsave(&emu->emu_lock, flags);
340 outl(value, emu->port + GPIO);
341 spin_unlock_irqrestore(&emu->emu_lock, flags);
342 }
343
snd_emu10k1x_pcm_free_substream(struct snd_pcm_runtime * runtime)344 static void snd_emu10k1x_pcm_free_substream(struct snd_pcm_runtime *runtime)
345 {
346 kfree(runtime->private_data);
347 }
348
snd_emu10k1x_pcm_interrupt(struct emu10k1x * emu,struct emu10k1x_voice * voice)349 static void snd_emu10k1x_pcm_interrupt(struct emu10k1x *emu, struct emu10k1x_voice *voice)
350 {
351 struct emu10k1x_pcm *epcm;
352
353 if ((epcm = voice->epcm) == NULL)
354 return;
355 if (epcm->substream == NULL)
356 return;
357 #if 0
358 dev_info(emu->card->dev,
359 "IRQ: position = 0x%x, period = 0x%x, size = 0x%x\n",
360 epcm->substream->ops->pointer(epcm->substream),
361 snd_pcm_lib_period_bytes(epcm->substream),
362 snd_pcm_lib_buffer_bytes(epcm->substream));
363 #endif
364 snd_pcm_period_elapsed(epcm->substream);
365 }
366
367 /* open callback */
snd_emu10k1x_playback_open(struct snd_pcm_substream * substream)368 static int snd_emu10k1x_playback_open(struct snd_pcm_substream *substream)
369 {
370 struct emu10k1x *chip = snd_pcm_substream_chip(substream);
371 struct emu10k1x_pcm *epcm;
372 struct snd_pcm_runtime *runtime = substream->runtime;
373 int err;
374
375 if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) {
376 return err;
377 }
378 if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
379 return err;
380
381 epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
382 if (epcm == NULL)
383 return -ENOMEM;
384 epcm->emu = chip;
385 epcm->substream = substream;
386
387 runtime->private_data = epcm;
388 runtime->private_free = snd_emu10k1x_pcm_free_substream;
389
390 runtime->hw = snd_emu10k1x_playback_hw;
391
392 return 0;
393 }
394
395 /* close callback */
snd_emu10k1x_playback_close(struct snd_pcm_substream * substream)396 static int snd_emu10k1x_playback_close(struct snd_pcm_substream *substream)
397 {
398 return 0;
399 }
400
401 /* hw_params callback */
snd_emu10k1x_pcm_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * hw_params)402 static int snd_emu10k1x_pcm_hw_params(struct snd_pcm_substream *substream,
403 struct snd_pcm_hw_params *hw_params)
404 {
405 struct snd_pcm_runtime *runtime = substream->runtime;
406 struct emu10k1x_pcm *epcm = runtime->private_data;
407
408 if (! epcm->voice) {
409 epcm->voice = &epcm->emu->voices[substream->pcm->device];
410 epcm->voice->use = 1;
411 epcm->voice->epcm = epcm;
412 }
413
414 return 0;
415 }
416
417 /* hw_free callback */
snd_emu10k1x_pcm_hw_free(struct snd_pcm_substream * substream)418 static int snd_emu10k1x_pcm_hw_free(struct snd_pcm_substream *substream)
419 {
420 struct snd_pcm_runtime *runtime = substream->runtime;
421 struct emu10k1x_pcm *epcm;
422
423 if (runtime->private_data == NULL)
424 return 0;
425
426 epcm = runtime->private_data;
427
428 if (epcm->voice) {
429 epcm->voice->use = 0;
430 epcm->voice->epcm = NULL;
431 epcm->voice = NULL;
432 }
433
434 return 0;
435 }
436
437 /* prepare callback */
snd_emu10k1x_pcm_prepare(struct snd_pcm_substream * substream)438 static int snd_emu10k1x_pcm_prepare(struct snd_pcm_substream *substream)
439 {
440 struct emu10k1x *emu = snd_pcm_substream_chip(substream);
441 struct snd_pcm_runtime *runtime = substream->runtime;
442 struct emu10k1x_pcm *epcm = runtime->private_data;
443 int voice = epcm->voice->number;
444 u32 *table_base = (u32 *)(emu->dma_buffer.area+1024*voice);
445 u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
446 int i;
447
448 for(i = 0; i < runtime->periods; i++) {
449 *table_base++=runtime->dma_addr+(i*period_size_bytes);
450 *table_base++=period_size_bytes<<16;
451 }
452
453 snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_ADDR, voice, emu->dma_buffer.addr+1024*voice);
454 snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_SIZE, voice, (runtime->periods - 1) << 19);
455 snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_PTR, voice, 0);
456 snd_emu10k1x_ptr_write(emu, PLAYBACK_POINTER, voice, 0);
457 snd_emu10k1x_ptr_write(emu, PLAYBACK_UNKNOWN1, voice, 0);
458 snd_emu10k1x_ptr_write(emu, PLAYBACK_UNKNOWN2, voice, 0);
459 snd_emu10k1x_ptr_write(emu, PLAYBACK_DMA_ADDR, voice, runtime->dma_addr);
460
461 snd_emu10k1x_ptr_write(emu, PLAYBACK_PERIOD_SIZE, voice, frames_to_bytes(runtime, runtime->period_size)<<16);
462
463 return 0;
464 }
465
466 /* trigger callback */
snd_emu10k1x_pcm_trigger(struct snd_pcm_substream * substream,int cmd)467 static int snd_emu10k1x_pcm_trigger(struct snd_pcm_substream *substream,
468 int cmd)
469 {
470 struct emu10k1x *emu = snd_pcm_substream_chip(substream);
471 struct snd_pcm_runtime *runtime = substream->runtime;
472 struct emu10k1x_pcm *epcm = runtime->private_data;
473 int channel = epcm->voice->number;
474 int result = 0;
475
476 /*
477 dev_dbg(emu->card->dev,
478 "trigger - emu10k1x = 0x%x, cmd = %i, pointer = %d\n",
479 (int)emu, cmd, (int)substream->ops->pointer(substream));
480 */
481
482 switch (cmd) {
483 case SNDRV_PCM_TRIGGER_START:
484 if(runtime->periods == 2)
485 snd_emu10k1x_intr_enable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel);
486 else
487 snd_emu10k1x_intr_enable(emu, INTE_CH_0_LOOP << channel);
488 epcm->running = 1;
489 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|(TRIGGER_CHANNEL_0<<channel));
490 break;
491 case SNDRV_PCM_TRIGGER_STOP:
492 epcm->running = 0;
493 snd_emu10k1x_intr_disable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel);
494 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CHANNEL_0<<channel));
495 break;
496 default:
497 result = -EINVAL;
498 break;
499 }
500 return result;
501 }
502
503 /* pointer callback */
504 static snd_pcm_uframes_t
snd_emu10k1x_pcm_pointer(struct snd_pcm_substream * substream)505 snd_emu10k1x_pcm_pointer(struct snd_pcm_substream *substream)
506 {
507 struct emu10k1x *emu = snd_pcm_substream_chip(substream);
508 struct snd_pcm_runtime *runtime = substream->runtime;
509 struct emu10k1x_pcm *epcm = runtime->private_data;
510 int channel = epcm->voice->number;
511 snd_pcm_uframes_t ptr = 0, ptr1 = 0, ptr2= 0,ptr3 = 0,ptr4 = 0;
512
513 if (!epcm->running)
514 return 0;
515
516 ptr3 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
517 ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel);
518 ptr4 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel);
519
520 if(ptr4 == 0 && ptr1 == frames_to_bytes(runtime, runtime->buffer_size))
521 return 0;
522
523 if (ptr3 != ptr4)
524 ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel);
525 ptr2 = bytes_to_frames(runtime, ptr1);
526 ptr2 += (ptr4 >> 3) * runtime->period_size;
527 ptr = ptr2;
528
529 if (ptr >= runtime->buffer_size)
530 ptr -= runtime->buffer_size;
531
532 return ptr;
533 }
534
535 /* operators */
536 static const struct snd_pcm_ops snd_emu10k1x_playback_ops = {
537 .open = snd_emu10k1x_playback_open,
538 .close = snd_emu10k1x_playback_close,
539 .hw_params = snd_emu10k1x_pcm_hw_params,
540 .hw_free = snd_emu10k1x_pcm_hw_free,
541 .prepare = snd_emu10k1x_pcm_prepare,
542 .trigger = snd_emu10k1x_pcm_trigger,
543 .pointer = snd_emu10k1x_pcm_pointer,
544 };
545
546 /* open_capture callback */
snd_emu10k1x_pcm_open_capture(struct snd_pcm_substream * substream)547 static int snd_emu10k1x_pcm_open_capture(struct snd_pcm_substream *substream)
548 {
549 struct emu10k1x *chip = snd_pcm_substream_chip(substream);
550 struct emu10k1x_pcm *epcm;
551 struct snd_pcm_runtime *runtime = substream->runtime;
552 int err;
553
554 if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
555 return err;
556 if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0)
557 return err;
558
559 epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
560 if (epcm == NULL)
561 return -ENOMEM;
562
563 epcm->emu = chip;
564 epcm->substream = substream;
565
566 runtime->private_data = epcm;
567 runtime->private_free = snd_emu10k1x_pcm_free_substream;
568
569 runtime->hw = snd_emu10k1x_capture_hw;
570
571 return 0;
572 }
573
574 /* close callback */
snd_emu10k1x_pcm_close_capture(struct snd_pcm_substream * substream)575 static int snd_emu10k1x_pcm_close_capture(struct snd_pcm_substream *substream)
576 {
577 return 0;
578 }
579
580 /* hw_params callback */
snd_emu10k1x_pcm_hw_params_capture(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * hw_params)581 static int snd_emu10k1x_pcm_hw_params_capture(struct snd_pcm_substream *substream,
582 struct snd_pcm_hw_params *hw_params)
583 {
584 struct snd_pcm_runtime *runtime = substream->runtime;
585 struct emu10k1x_pcm *epcm = runtime->private_data;
586
587 if (! epcm->voice) {
588 if (epcm->emu->capture_voice.use)
589 return -EBUSY;
590 epcm->voice = &epcm->emu->capture_voice;
591 epcm->voice->epcm = epcm;
592 epcm->voice->use = 1;
593 }
594
595 return 0;
596 }
597
598 /* hw_free callback */
snd_emu10k1x_pcm_hw_free_capture(struct snd_pcm_substream * substream)599 static int snd_emu10k1x_pcm_hw_free_capture(struct snd_pcm_substream *substream)
600 {
601 struct snd_pcm_runtime *runtime = substream->runtime;
602
603 struct emu10k1x_pcm *epcm;
604
605 if (runtime->private_data == NULL)
606 return 0;
607 epcm = runtime->private_data;
608
609 if (epcm->voice) {
610 epcm->voice->use = 0;
611 epcm->voice->epcm = NULL;
612 epcm->voice = NULL;
613 }
614
615 return 0;
616 }
617
618 /* prepare capture callback */
snd_emu10k1x_pcm_prepare_capture(struct snd_pcm_substream * substream)619 static int snd_emu10k1x_pcm_prepare_capture(struct snd_pcm_substream *substream)
620 {
621 struct emu10k1x *emu = snd_pcm_substream_chip(substream);
622 struct snd_pcm_runtime *runtime = substream->runtime;
623
624 snd_emu10k1x_ptr_write(emu, CAPTURE_DMA_ADDR, 0, runtime->dma_addr);
625 snd_emu10k1x_ptr_write(emu, CAPTURE_BUFFER_SIZE, 0, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
626 snd_emu10k1x_ptr_write(emu, CAPTURE_POINTER, 0, 0);
627 snd_emu10k1x_ptr_write(emu, CAPTURE_UNKNOWN, 0, 0);
628
629 return 0;
630 }
631
632 /* trigger_capture callback */
snd_emu10k1x_pcm_trigger_capture(struct snd_pcm_substream * substream,int cmd)633 static int snd_emu10k1x_pcm_trigger_capture(struct snd_pcm_substream *substream,
634 int cmd)
635 {
636 struct emu10k1x *emu = snd_pcm_substream_chip(substream);
637 struct snd_pcm_runtime *runtime = substream->runtime;
638 struct emu10k1x_pcm *epcm = runtime->private_data;
639 int result = 0;
640
641 switch (cmd) {
642 case SNDRV_PCM_TRIGGER_START:
643 snd_emu10k1x_intr_enable(emu, INTE_CAP_0_LOOP |
644 INTE_CAP_0_HALF_LOOP);
645 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|TRIGGER_CAPTURE);
646 epcm->running = 1;
647 break;
648 case SNDRV_PCM_TRIGGER_STOP:
649 epcm->running = 0;
650 snd_emu10k1x_intr_disable(emu, INTE_CAP_0_LOOP |
651 INTE_CAP_0_HALF_LOOP);
652 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CAPTURE));
653 break;
654 default:
655 result = -EINVAL;
656 break;
657 }
658 return result;
659 }
660
661 /* pointer_capture callback */
662 static snd_pcm_uframes_t
snd_emu10k1x_pcm_pointer_capture(struct snd_pcm_substream * substream)663 snd_emu10k1x_pcm_pointer_capture(struct snd_pcm_substream *substream)
664 {
665 struct emu10k1x *emu = snd_pcm_substream_chip(substream);
666 struct snd_pcm_runtime *runtime = substream->runtime;
667 struct emu10k1x_pcm *epcm = runtime->private_data;
668 snd_pcm_uframes_t ptr;
669
670 if (!epcm->running)
671 return 0;
672
673 ptr = bytes_to_frames(runtime, snd_emu10k1x_ptr_read(emu, CAPTURE_POINTER, 0));
674 if (ptr >= runtime->buffer_size)
675 ptr -= runtime->buffer_size;
676
677 return ptr;
678 }
679
680 static const struct snd_pcm_ops snd_emu10k1x_capture_ops = {
681 .open = snd_emu10k1x_pcm_open_capture,
682 .close = snd_emu10k1x_pcm_close_capture,
683 .hw_params = snd_emu10k1x_pcm_hw_params_capture,
684 .hw_free = snd_emu10k1x_pcm_hw_free_capture,
685 .prepare = snd_emu10k1x_pcm_prepare_capture,
686 .trigger = snd_emu10k1x_pcm_trigger_capture,
687 .pointer = snd_emu10k1x_pcm_pointer_capture,
688 };
689
snd_emu10k1x_ac97_read(struct snd_ac97 * ac97,unsigned short reg)690 static unsigned short snd_emu10k1x_ac97_read(struct snd_ac97 *ac97,
691 unsigned short reg)
692 {
693 struct emu10k1x *emu = ac97->private_data;
694 unsigned long flags;
695 unsigned short val;
696
697 spin_lock_irqsave(&emu->emu_lock, flags);
698 outb(reg, emu->port + AC97ADDRESS);
699 val = inw(emu->port + AC97DATA);
700 spin_unlock_irqrestore(&emu->emu_lock, flags);
701 return val;
702 }
703
snd_emu10k1x_ac97_write(struct snd_ac97 * ac97,unsigned short reg,unsigned short val)704 static void snd_emu10k1x_ac97_write(struct snd_ac97 *ac97,
705 unsigned short reg, unsigned short val)
706 {
707 struct emu10k1x *emu = ac97->private_data;
708 unsigned long flags;
709
710 spin_lock_irqsave(&emu->emu_lock, flags);
711 outb(reg, emu->port + AC97ADDRESS);
712 outw(val, emu->port + AC97DATA);
713 spin_unlock_irqrestore(&emu->emu_lock, flags);
714 }
715
snd_emu10k1x_ac97(struct emu10k1x * chip)716 static int snd_emu10k1x_ac97(struct emu10k1x *chip)
717 {
718 struct snd_ac97_bus *pbus;
719 struct snd_ac97_template ac97;
720 int err;
721 static const struct snd_ac97_bus_ops ops = {
722 .write = snd_emu10k1x_ac97_write,
723 .read = snd_emu10k1x_ac97_read,
724 };
725
726 if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
727 return err;
728 pbus->no_vra = 1; /* we don't need VRA */
729
730 memset(&ac97, 0, sizeof(ac97));
731 ac97.private_data = chip;
732 ac97.scaps = AC97_SCAP_NO_SPDIF;
733 return snd_ac97_mixer(pbus, &ac97, &chip->ac97);
734 }
735
snd_emu10k1x_free(struct emu10k1x * chip)736 static int snd_emu10k1x_free(struct emu10k1x *chip)
737 {
738 snd_emu10k1x_ptr_write(chip, TRIGGER_CHANNEL, 0, 0);
739 // disable interrupts
740 outl(0, chip->port + INTE);
741 // disable audio
742 outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG);
743
744 /* release the irq */
745 if (chip->irq >= 0)
746 free_irq(chip->irq, chip);
747
748 // release the i/o port
749 release_and_free_resource(chip->res_port);
750
751 // release the DMA
752 if (chip->dma_buffer.area) {
753 snd_dma_free_pages(&chip->dma_buffer);
754 }
755
756 pci_disable_device(chip->pci);
757
758 // release the data
759 kfree(chip);
760 return 0;
761 }
762
snd_emu10k1x_dev_free(struct snd_device * device)763 static int snd_emu10k1x_dev_free(struct snd_device *device)
764 {
765 struct emu10k1x *chip = device->device_data;
766 return snd_emu10k1x_free(chip);
767 }
768
snd_emu10k1x_interrupt(int irq,void * dev_id)769 static irqreturn_t snd_emu10k1x_interrupt(int irq, void *dev_id)
770 {
771 unsigned int status;
772
773 struct emu10k1x *chip = dev_id;
774 struct emu10k1x_voice *pvoice = chip->voices;
775 int i;
776 int mask;
777
778 status = inl(chip->port + IPR);
779
780 if (! status)
781 return IRQ_NONE;
782
783 // capture interrupt
784 if (status & (IPR_CAP_0_LOOP | IPR_CAP_0_HALF_LOOP)) {
785 struct emu10k1x_voice *cap_voice = &chip->capture_voice;
786 if (cap_voice->use)
787 snd_emu10k1x_pcm_interrupt(chip, cap_voice);
788 else
789 snd_emu10k1x_intr_disable(chip,
790 INTE_CAP_0_LOOP |
791 INTE_CAP_0_HALF_LOOP);
792 }
793
794 mask = IPR_CH_0_LOOP|IPR_CH_0_HALF_LOOP;
795 for (i = 0; i < 3; i++) {
796 if (status & mask) {
797 if (pvoice->use)
798 snd_emu10k1x_pcm_interrupt(chip, pvoice);
799 else
800 snd_emu10k1x_intr_disable(chip, mask);
801 }
802 pvoice++;
803 mask <<= 1;
804 }
805
806 if (status & (IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY)) {
807 if (chip->midi.interrupt)
808 chip->midi.interrupt(chip, status);
809 else
810 snd_emu10k1x_intr_disable(chip, INTE_MIDITXENABLE|INTE_MIDIRXENABLE);
811 }
812
813 // acknowledge the interrupt if necessary
814 outl(status, chip->port + IPR);
815
816 /* dev_dbg(chip->card->dev, "interrupt %08x\n", status); */
817 return IRQ_HANDLED;
818 }
819
820 static const struct snd_pcm_chmap_elem surround_map[] = {
821 { .channels = 2,
822 .map = { SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
823 { }
824 };
825
826 static const struct snd_pcm_chmap_elem clfe_map[] = {
827 { .channels = 2,
828 .map = { SNDRV_CHMAP_FC, SNDRV_CHMAP_LFE } },
829 { }
830 };
831
snd_emu10k1x_pcm(struct emu10k1x * emu,int device)832 static int snd_emu10k1x_pcm(struct emu10k1x *emu, int device)
833 {
834 struct snd_pcm *pcm;
835 const struct snd_pcm_chmap_elem *map = NULL;
836 int err;
837 int capture = 0;
838
839 if (device == 0)
840 capture = 1;
841
842 if ((err = snd_pcm_new(emu->card, "emu10k1x", device, 1, capture, &pcm)) < 0)
843 return err;
844
845 pcm->private_data = emu;
846
847 switch(device) {
848 case 0:
849 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops);
850 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1x_capture_ops);
851 break;
852 case 1:
853 case 2:
854 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops);
855 break;
856 }
857
858 pcm->info_flags = 0;
859 switch(device) {
860 case 0:
861 strcpy(pcm->name, "EMU10K1X Front");
862 map = snd_pcm_std_chmaps;
863 break;
864 case 1:
865 strcpy(pcm->name, "EMU10K1X Rear");
866 map = surround_map;
867 break;
868 case 2:
869 strcpy(pcm->name, "EMU10K1X Center/LFE");
870 map = clfe_map;
871 break;
872 }
873 emu->pcm = pcm;
874
875 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
876 &emu->pci->dev, 32*1024, 32*1024);
877
878 return snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, map, 2,
879 1 << 2, NULL);
880 }
881
snd_emu10k1x_create(struct snd_card * card,struct pci_dev * pci,struct emu10k1x ** rchip)882 static int snd_emu10k1x_create(struct snd_card *card,
883 struct pci_dev *pci,
884 struct emu10k1x **rchip)
885 {
886 struct emu10k1x *chip;
887 int err;
888 int ch;
889 static const struct snd_device_ops ops = {
890 .dev_free = snd_emu10k1x_dev_free,
891 };
892
893 *rchip = NULL;
894
895 if ((err = pci_enable_device(pci)) < 0)
896 return err;
897 if (pci_set_dma_mask(pci, DMA_BIT_MASK(28)) < 0 ||
898 pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(28)) < 0) {
899 dev_err(card->dev, "error to set 28bit mask DMA\n");
900 pci_disable_device(pci);
901 return -ENXIO;
902 }
903
904 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
905 if (chip == NULL) {
906 pci_disable_device(pci);
907 return -ENOMEM;
908 }
909
910 chip->card = card;
911 chip->pci = pci;
912 chip->irq = -1;
913
914 spin_lock_init(&chip->emu_lock);
915 spin_lock_init(&chip->voice_lock);
916
917 chip->port = pci_resource_start(pci, 0);
918 if ((chip->res_port = request_region(chip->port, 8,
919 "EMU10K1X")) == NULL) {
920 dev_err(card->dev, "cannot allocate the port 0x%lx\n",
921 chip->port);
922 snd_emu10k1x_free(chip);
923 return -EBUSY;
924 }
925
926 if (request_irq(pci->irq, snd_emu10k1x_interrupt,
927 IRQF_SHARED, KBUILD_MODNAME, chip)) {
928 dev_err(card->dev, "cannot grab irq %d\n", pci->irq);
929 snd_emu10k1x_free(chip);
930 return -EBUSY;
931 }
932 chip->irq = pci->irq;
933 card->sync_irq = chip->irq;
934
935 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &pci->dev,
936 4 * 1024, &chip->dma_buffer) < 0) {
937 snd_emu10k1x_free(chip);
938 return -ENOMEM;
939 }
940
941 pci_set_master(pci);
942 /* read revision & serial */
943 chip->revision = pci->revision;
944 pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
945 pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
946 dev_info(card->dev, "Model %04x Rev %08x Serial %08x\n", chip->model,
947 chip->revision, chip->serial);
948
949 outl(0, chip->port + INTE);
950
951 for(ch = 0; ch < 3; ch++) {
952 chip->voices[ch].emu = chip;
953 chip->voices[ch].number = ch;
954 }
955
956 /*
957 * Init to 0x02109204 :
958 * Clock accuracy = 0 (1000ppm)
959 * Sample Rate = 2 (48kHz)
960 * Audio Channel = 1 (Left of 2)
961 * Source Number = 0 (Unspecified)
962 * Generation Status = 1 (Original for Cat Code 12)
963 * Cat Code = 12 (Digital Signal Mixer)
964 * Mode = 0 (Mode 0)
965 * Emphasis = 0 (None)
966 * CP = 1 (Copyright unasserted)
967 * AN = 0 (Audio data)
968 * P = 0 (Consumer)
969 */
970 snd_emu10k1x_ptr_write(chip, SPCS0, 0,
971 chip->spdif_bits[0] =
972 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
973 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
974 SPCS_GENERATIONSTATUS | 0x00001200 |
975 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
976 snd_emu10k1x_ptr_write(chip, SPCS1, 0,
977 chip->spdif_bits[1] =
978 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
979 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
980 SPCS_GENERATIONSTATUS | 0x00001200 |
981 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
982 snd_emu10k1x_ptr_write(chip, SPCS2, 0,
983 chip->spdif_bits[2] =
984 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 |
985 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC |
986 SPCS_GENERATIONSTATUS | 0x00001200 |
987 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT);
988
989 snd_emu10k1x_ptr_write(chip, SPDIF_SELECT, 0, 0x700); // disable SPDIF
990 snd_emu10k1x_ptr_write(chip, ROUTING, 0, 0x1003F); // routing
991 snd_emu10k1x_gpio_write(chip, 0x1080); // analog mode
992
993 outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG);
994
995 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
996 chip, &ops)) < 0) {
997 snd_emu10k1x_free(chip);
998 return err;
999 }
1000 *rchip = chip;
1001 return 0;
1002 }
1003
snd_emu10k1x_proc_reg_read(struct snd_info_entry * entry,struct snd_info_buffer * buffer)1004 static void snd_emu10k1x_proc_reg_read(struct snd_info_entry *entry,
1005 struct snd_info_buffer *buffer)
1006 {
1007 struct emu10k1x *emu = entry->private_data;
1008 unsigned long value,value1,value2;
1009 unsigned long flags;
1010 int i;
1011
1012 snd_iprintf(buffer, "Registers:\n\n");
1013 for(i = 0; i < 0x20; i+=4) {
1014 spin_lock_irqsave(&emu->emu_lock, flags);
1015 value = inl(emu->port + i);
1016 spin_unlock_irqrestore(&emu->emu_lock, flags);
1017 snd_iprintf(buffer, "Register %02X: %08lX\n", i, value);
1018 }
1019 snd_iprintf(buffer, "\nRegisters\n\n");
1020 for(i = 0; i <= 0x48; i++) {
1021 value = snd_emu10k1x_ptr_read(emu, i, 0);
1022 if(i < 0x10 || (i >= 0x20 && i < 0x40)) {
1023 value1 = snd_emu10k1x_ptr_read(emu, i, 1);
1024 value2 = snd_emu10k1x_ptr_read(emu, i, 2);
1025 snd_iprintf(buffer, "%02X: %08lX %08lX %08lX\n", i, value, value1, value2);
1026 } else {
1027 snd_iprintf(buffer, "%02X: %08lX\n", i, value);
1028 }
1029 }
1030 }
1031
snd_emu10k1x_proc_reg_write(struct snd_info_entry * entry,struct snd_info_buffer * buffer)1032 static void snd_emu10k1x_proc_reg_write(struct snd_info_entry *entry,
1033 struct snd_info_buffer *buffer)
1034 {
1035 struct emu10k1x *emu = entry->private_data;
1036 char line[64];
1037 unsigned int reg, channel_id , val;
1038
1039 while (!snd_info_get_line(buffer, line, sizeof(line))) {
1040 if (sscanf(line, "%x %x %x", ®, &channel_id, &val) != 3)
1041 continue;
1042
1043 if (reg < 0x49 && channel_id <= 2)
1044 snd_emu10k1x_ptr_write(emu, reg, channel_id, val);
1045 }
1046 }
1047
snd_emu10k1x_proc_init(struct emu10k1x * emu)1048 static int snd_emu10k1x_proc_init(struct emu10k1x *emu)
1049 {
1050 snd_card_rw_proc_new(emu->card, "emu10k1x_regs", emu,
1051 snd_emu10k1x_proc_reg_read,
1052 snd_emu10k1x_proc_reg_write);
1053 return 0;
1054 }
1055
1056 #define snd_emu10k1x_shared_spdif_info snd_ctl_boolean_mono_info
1057
snd_emu10k1x_shared_spdif_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)1058 static int snd_emu10k1x_shared_spdif_get(struct snd_kcontrol *kcontrol,
1059 struct snd_ctl_elem_value *ucontrol)
1060 {
1061 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
1062
1063 ucontrol->value.integer.value[0] = (snd_emu10k1x_ptr_read(emu, SPDIF_SELECT, 0) == 0x700) ? 0 : 1;
1064
1065 return 0;
1066 }
1067
snd_emu10k1x_shared_spdif_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)1068 static int snd_emu10k1x_shared_spdif_put(struct snd_kcontrol *kcontrol,
1069 struct snd_ctl_elem_value *ucontrol)
1070 {
1071 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
1072 unsigned int val;
1073
1074 val = ucontrol->value.integer.value[0] ;
1075
1076 if (val) {
1077 // enable spdif output
1078 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x000);
1079 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x700);
1080 snd_emu10k1x_gpio_write(emu, 0x1000);
1081 } else {
1082 // disable spdif output
1083 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x700);
1084 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x1003F);
1085 snd_emu10k1x_gpio_write(emu, 0x1080);
1086 }
1087 return 0;
1088 }
1089
1090 static const struct snd_kcontrol_new snd_emu10k1x_shared_spdif =
1091 {
1092 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1093 .name = "Analog/Digital Output Jack",
1094 .info = snd_emu10k1x_shared_spdif_info,
1095 .get = snd_emu10k1x_shared_spdif_get,
1096 .put = snd_emu10k1x_shared_spdif_put
1097 };
1098
snd_emu10k1x_spdif_info(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)1099 static int snd_emu10k1x_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1100 {
1101 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1102 uinfo->count = 1;
1103 return 0;
1104 }
1105
snd_emu10k1x_spdif_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)1106 static int snd_emu10k1x_spdif_get(struct snd_kcontrol *kcontrol,
1107 struct snd_ctl_elem_value *ucontrol)
1108 {
1109 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
1110 unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
1111
1112 ucontrol->value.iec958.status[0] = (emu->spdif_bits[idx] >> 0) & 0xff;
1113 ucontrol->value.iec958.status[1] = (emu->spdif_bits[idx] >> 8) & 0xff;
1114 ucontrol->value.iec958.status[2] = (emu->spdif_bits[idx] >> 16) & 0xff;
1115 ucontrol->value.iec958.status[3] = (emu->spdif_bits[idx] >> 24) & 0xff;
1116 return 0;
1117 }
1118
snd_emu10k1x_spdif_get_mask(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)1119 static int snd_emu10k1x_spdif_get_mask(struct snd_kcontrol *kcontrol,
1120 struct snd_ctl_elem_value *ucontrol)
1121 {
1122 ucontrol->value.iec958.status[0] = 0xff;
1123 ucontrol->value.iec958.status[1] = 0xff;
1124 ucontrol->value.iec958.status[2] = 0xff;
1125 ucontrol->value.iec958.status[3] = 0xff;
1126 return 0;
1127 }
1128
snd_emu10k1x_spdif_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)1129 static int snd_emu10k1x_spdif_put(struct snd_kcontrol *kcontrol,
1130 struct snd_ctl_elem_value *ucontrol)
1131 {
1132 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol);
1133 unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
1134 int change;
1135 unsigned int val;
1136
1137 val = (ucontrol->value.iec958.status[0] << 0) |
1138 (ucontrol->value.iec958.status[1] << 8) |
1139 (ucontrol->value.iec958.status[2] << 16) |
1140 (ucontrol->value.iec958.status[3] << 24);
1141 change = val != emu->spdif_bits[idx];
1142 if (change) {
1143 snd_emu10k1x_ptr_write(emu, SPCS0 + idx, 0, val);
1144 emu->spdif_bits[idx] = val;
1145 }
1146 return change;
1147 }
1148
1149 static const struct snd_kcontrol_new snd_emu10k1x_spdif_mask_control =
1150 {
1151 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1152 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1153 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
1154 .count = 3,
1155 .info = snd_emu10k1x_spdif_info,
1156 .get = snd_emu10k1x_spdif_get_mask
1157 };
1158
1159 static const struct snd_kcontrol_new snd_emu10k1x_spdif_control =
1160 {
1161 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1162 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1163 .count = 3,
1164 .info = snd_emu10k1x_spdif_info,
1165 .get = snd_emu10k1x_spdif_get,
1166 .put = snd_emu10k1x_spdif_put
1167 };
1168
snd_emu10k1x_mixer(struct emu10k1x * emu)1169 static int snd_emu10k1x_mixer(struct emu10k1x *emu)
1170 {
1171 int err;
1172 struct snd_kcontrol *kctl;
1173 struct snd_card *card = emu->card;
1174
1175 if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_mask_control, emu)) == NULL)
1176 return -ENOMEM;
1177 if ((err = snd_ctl_add(card, kctl)))
1178 return err;
1179 if ((kctl = snd_ctl_new1(&snd_emu10k1x_shared_spdif, emu)) == NULL)
1180 return -ENOMEM;
1181 if ((err = snd_ctl_add(card, kctl)))
1182 return err;
1183 if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_control, emu)) == NULL)
1184 return -ENOMEM;
1185 if ((err = snd_ctl_add(card, kctl)))
1186 return err;
1187
1188 return 0;
1189 }
1190
1191 #define EMU10K1X_MIDI_MODE_INPUT (1<<0)
1192 #define EMU10K1X_MIDI_MODE_OUTPUT (1<<1)
1193
mpu401_read(struct emu10k1x * emu,struct emu10k1x_midi * mpu,int idx)1194 static inline unsigned char mpu401_read(struct emu10k1x *emu, struct emu10k1x_midi *mpu, int idx)
1195 {
1196 return (unsigned char)snd_emu10k1x_ptr_read(emu, mpu->port + idx, 0);
1197 }
1198
mpu401_write(struct emu10k1x * emu,struct emu10k1x_midi * mpu,int data,int idx)1199 static inline void mpu401_write(struct emu10k1x *emu, struct emu10k1x_midi *mpu, int data, int idx)
1200 {
1201 snd_emu10k1x_ptr_write(emu, mpu->port + idx, 0, data);
1202 }
1203
1204 #define mpu401_write_data(emu, mpu, data) mpu401_write(emu, mpu, data, 0)
1205 #define mpu401_write_cmd(emu, mpu, data) mpu401_write(emu, mpu, data, 1)
1206 #define mpu401_read_data(emu, mpu) mpu401_read(emu, mpu, 0)
1207 #define mpu401_read_stat(emu, mpu) mpu401_read(emu, mpu, 1)
1208
1209 #define mpu401_input_avail(emu,mpu) (!(mpu401_read_stat(emu,mpu) & 0x80))
1210 #define mpu401_output_ready(emu,mpu) (!(mpu401_read_stat(emu,mpu) & 0x40))
1211
1212 #define MPU401_RESET 0xff
1213 #define MPU401_ENTER_UART 0x3f
1214 #define MPU401_ACK 0xfe
1215
mpu401_clear_rx(struct emu10k1x * emu,struct emu10k1x_midi * mpu)1216 static void mpu401_clear_rx(struct emu10k1x *emu, struct emu10k1x_midi *mpu)
1217 {
1218 int timeout = 100000;
1219 for (; timeout > 0 && mpu401_input_avail(emu, mpu); timeout--)
1220 mpu401_read_data(emu, mpu);
1221 #ifdef CONFIG_SND_DEBUG
1222 if (timeout <= 0)
1223 dev_err(emu->card->dev,
1224 "cmd: clear rx timeout (status = 0x%x)\n",
1225 mpu401_read_stat(emu, mpu));
1226 #endif
1227 }
1228
1229 /*
1230
1231 */
1232
do_emu10k1x_midi_interrupt(struct emu10k1x * emu,struct emu10k1x_midi * midi,unsigned int status)1233 static void do_emu10k1x_midi_interrupt(struct emu10k1x *emu,
1234 struct emu10k1x_midi *midi, unsigned int status)
1235 {
1236 unsigned char byte;
1237
1238 if (midi->rmidi == NULL) {
1239 snd_emu10k1x_intr_disable(emu, midi->tx_enable | midi->rx_enable);
1240 return;
1241 }
1242
1243 spin_lock(&midi->input_lock);
1244 if ((status & midi->ipr_rx) && mpu401_input_avail(emu, midi)) {
1245 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1246 mpu401_clear_rx(emu, midi);
1247 } else {
1248 byte = mpu401_read_data(emu, midi);
1249 if (midi->substream_input)
1250 snd_rawmidi_receive(midi->substream_input, &byte, 1);
1251 }
1252 }
1253 spin_unlock(&midi->input_lock);
1254
1255 spin_lock(&midi->output_lock);
1256 if ((status & midi->ipr_tx) && mpu401_output_ready(emu, midi)) {
1257 if (midi->substream_output &&
1258 snd_rawmidi_transmit(midi->substream_output, &byte, 1) == 1) {
1259 mpu401_write_data(emu, midi, byte);
1260 } else {
1261 snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1262 }
1263 }
1264 spin_unlock(&midi->output_lock);
1265 }
1266
snd_emu10k1x_midi_interrupt(struct emu10k1x * emu,unsigned int status)1267 static void snd_emu10k1x_midi_interrupt(struct emu10k1x *emu, unsigned int status)
1268 {
1269 do_emu10k1x_midi_interrupt(emu, &emu->midi, status);
1270 }
1271
snd_emu10k1x_midi_cmd(struct emu10k1x * emu,struct emu10k1x_midi * midi,unsigned char cmd,int ack)1272 static int snd_emu10k1x_midi_cmd(struct emu10k1x * emu,
1273 struct emu10k1x_midi *midi, unsigned char cmd, int ack)
1274 {
1275 unsigned long flags;
1276 int timeout, ok;
1277
1278 spin_lock_irqsave(&midi->input_lock, flags);
1279 mpu401_write_data(emu, midi, 0x00);
1280 /* mpu401_clear_rx(emu, midi); */
1281
1282 mpu401_write_cmd(emu, midi, cmd);
1283 if (ack) {
1284 ok = 0;
1285 timeout = 10000;
1286 while (!ok && timeout-- > 0) {
1287 if (mpu401_input_avail(emu, midi)) {
1288 if (mpu401_read_data(emu, midi) == MPU401_ACK)
1289 ok = 1;
1290 }
1291 }
1292 if (!ok && mpu401_read_data(emu, midi) == MPU401_ACK)
1293 ok = 1;
1294 } else {
1295 ok = 1;
1296 }
1297 spin_unlock_irqrestore(&midi->input_lock, flags);
1298 if (!ok) {
1299 dev_err(emu->card->dev,
1300 "midi_cmd: 0x%x failed at 0x%lx (status = 0x%x, data = 0x%x)!!!\n",
1301 cmd, emu->port,
1302 mpu401_read_stat(emu, midi),
1303 mpu401_read_data(emu, midi));
1304 return 1;
1305 }
1306 return 0;
1307 }
1308
snd_emu10k1x_midi_input_open(struct snd_rawmidi_substream * substream)1309 static int snd_emu10k1x_midi_input_open(struct snd_rawmidi_substream *substream)
1310 {
1311 struct emu10k1x *emu;
1312 struct emu10k1x_midi *midi = substream->rmidi->private_data;
1313 unsigned long flags;
1314
1315 emu = midi->emu;
1316 if (snd_BUG_ON(!emu))
1317 return -ENXIO;
1318 spin_lock_irqsave(&midi->open_lock, flags);
1319 midi->midi_mode |= EMU10K1X_MIDI_MODE_INPUT;
1320 midi->substream_input = substream;
1321 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) {
1322 spin_unlock_irqrestore(&midi->open_lock, flags);
1323 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1))
1324 goto error_out;
1325 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1))
1326 goto error_out;
1327 } else {
1328 spin_unlock_irqrestore(&midi->open_lock, flags);
1329 }
1330 return 0;
1331
1332 error_out:
1333 return -EIO;
1334 }
1335
snd_emu10k1x_midi_output_open(struct snd_rawmidi_substream * substream)1336 static int snd_emu10k1x_midi_output_open(struct snd_rawmidi_substream *substream)
1337 {
1338 struct emu10k1x *emu;
1339 struct emu10k1x_midi *midi = substream->rmidi->private_data;
1340 unsigned long flags;
1341
1342 emu = midi->emu;
1343 if (snd_BUG_ON(!emu))
1344 return -ENXIO;
1345 spin_lock_irqsave(&midi->open_lock, flags);
1346 midi->midi_mode |= EMU10K1X_MIDI_MODE_OUTPUT;
1347 midi->substream_output = substream;
1348 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1349 spin_unlock_irqrestore(&midi->open_lock, flags);
1350 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1))
1351 goto error_out;
1352 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1))
1353 goto error_out;
1354 } else {
1355 spin_unlock_irqrestore(&midi->open_lock, flags);
1356 }
1357 return 0;
1358
1359 error_out:
1360 return -EIO;
1361 }
1362
snd_emu10k1x_midi_input_close(struct snd_rawmidi_substream * substream)1363 static int snd_emu10k1x_midi_input_close(struct snd_rawmidi_substream *substream)
1364 {
1365 struct emu10k1x *emu;
1366 struct emu10k1x_midi *midi = substream->rmidi->private_data;
1367 unsigned long flags;
1368 int err = 0;
1369
1370 emu = midi->emu;
1371 if (snd_BUG_ON(!emu))
1372 return -ENXIO;
1373 spin_lock_irqsave(&midi->open_lock, flags);
1374 snd_emu10k1x_intr_disable(emu, midi->rx_enable);
1375 midi->midi_mode &= ~EMU10K1X_MIDI_MODE_INPUT;
1376 midi->substream_input = NULL;
1377 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) {
1378 spin_unlock_irqrestore(&midi->open_lock, flags);
1379 err = snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0);
1380 } else {
1381 spin_unlock_irqrestore(&midi->open_lock, flags);
1382 }
1383 return err;
1384 }
1385
snd_emu10k1x_midi_output_close(struct snd_rawmidi_substream * substream)1386 static int snd_emu10k1x_midi_output_close(struct snd_rawmidi_substream *substream)
1387 {
1388 struct emu10k1x *emu;
1389 struct emu10k1x_midi *midi = substream->rmidi->private_data;
1390 unsigned long flags;
1391 int err = 0;
1392
1393 emu = midi->emu;
1394 if (snd_BUG_ON(!emu))
1395 return -ENXIO;
1396 spin_lock_irqsave(&midi->open_lock, flags);
1397 snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1398 midi->midi_mode &= ~EMU10K1X_MIDI_MODE_OUTPUT;
1399 midi->substream_output = NULL;
1400 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) {
1401 spin_unlock_irqrestore(&midi->open_lock, flags);
1402 err = snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0);
1403 } else {
1404 spin_unlock_irqrestore(&midi->open_lock, flags);
1405 }
1406 return err;
1407 }
1408
snd_emu10k1x_midi_input_trigger(struct snd_rawmidi_substream * substream,int up)1409 static void snd_emu10k1x_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
1410 {
1411 struct emu10k1x *emu;
1412 struct emu10k1x_midi *midi = substream->rmidi->private_data;
1413 emu = midi->emu;
1414 if (snd_BUG_ON(!emu))
1415 return;
1416
1417 if (up)
1418 snd_emu10k1x_intr_enable(emu, midi->rx_enable);
1419 else
1420 snd_emu10k1x_intr_disable(emu, midi->rx_enable);
1421 }
1422
snd_emu10k1x_midi_output_trigger(struct snd_rawmidi_substream * substream,int up)1423 static void snd_emu10k1x_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
1424 {
1425 struct emu10k1x *emu;
1426 struct emu10k1x_midi *midi = substream->rmidi->private_data;
1427 unsigned long flags;
1428
1429 emu = midi->emu;
1430 if (snd_BUG_ON(!emu))
1431 return;
1432
1433 if (up) {
1434 int max = 4;
1435 unsigned char byte;
1436
1437 /* try to send some amount of bytes here before interrupts */
1438 spin_lock_irqsave(&midi->output_lock, flags);
1439 while (max > 0) {
1440 if (mpu401_output_ready(emu, midi)) {
1441 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT) ||
1442 snd_rawmidi_transmit(substream, &byte, 1) != 1) {
1443 /* no more data */
1444 spin_unlock_irqrestore(&midi->output_lock, flags);
1445 return;
1446 }
1447 mpu401_write_data(emu, midi, byte);
1448 max--;
1449 } else {
1450 break;
1451 }
1452 }
1453 spin_unlock_irqrestore(&midi->output_lock, flags);
1454 snd_emu10k1x_intr_enable(emu, midi->tx_enable);
1455 } else {
1456 snd_emu10k1x_intr_disable(emu, midi->tx_enable);
1457 }
1458 }
1459
1460 /*
1461
1462 */
1463
1464 static const struct snd_rawmidi_ops snd_emu10k1x_midi_output =
1465 {
1466 .open = snd_emu10k1x_midi_output_open,
1467 .close = snd_emu10k1x_midi_output_close,
1468 .trigger = snd_emu10k1x_midi_output_trigger,
1469 };
1470
1471 static const struct snd_rawmidi_ops snd_emu10k1x_midi_input =
1472 {
1473 .open = snd_emu10k1x_midi_input_open,
1474 .close = snd_emu10k1x_midi_input_close,
1475 .trigger = snd_emu10k1x_midi_input_trigger,
1476 };
1477
snd_emu10k1x_midi_free(struct snd_rawmidi * rmidi)1478 static void snd_emu10k1x_midi_free(struct snd_rawmidi *rmidi)
1479 {
1480 struct emu10k1x_midi *midi = rmidi->private_data;
1481 midi->interrupt = NULL;
1482 midi->rmidi = NULL;
1483 }
1484
emu10k1x_midi_init(struct emu10k1x * emu,struct emu10k1x_midi * midi,int device,char * name)1485 static int emu10k1x_midi_init(struct emu10k1x *emu,
1486 struct emu10k1x_midi *midi, int device,
1487 char *name)
1488 {
1489 struct snd_rawmidi *rmidi;
1490 int err;
1491
1492 if ((err = snd_rawmidi_new(emu->card, name, device, 1, 1, &rmidi)) < 0)
1493 return err;
1494 midi->emu = emu;
1495 spin_lock_init(&midi->open_lock);
1496 spin_lock_init(&midi->input_lock);
1497 spin_lock_init(&midi->output_lock);
1498 strcpy(rmidi->name, name);
1499 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_emu10k1x_midi_output);
1500 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_emu10k1x_midi_input);
1501 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT |
1502 SNDRV_RAWMIDI_INFO_INPUT |
1503 SNDRV_RAWMIDI_INFO_DUPLEX;
1504 rmidi->private_data = midi;
1505 rmidi->private_free = snd_emu10k1x_midi_free;
1506 midi->rmidi = rmidi;
1507 return 0;
1508 }
1509
snd_emu10k1x_midi(struct emu10k1x * emu)1510 static int snd_emu10k1x_midi(struct emu10k1x *emu)
1511 {
1512 struct emu10k1x_midi *midi = &emu->midi;
1513 int err;
1514
1515 if ((err = emu10k1x_midi_init(emu, midi, 0, "EMU10K1X MPU-401 (UART)")) < 0)
1516 return err;
1517
1518 midi->tx_enable = INTE_MIDITXENABLE;
1519 midi->rx_enable = INTE_MIDIRXENABLE;
1520 midi->port = MUDATA;
1521 midi->ipr_tx = IPR_MIDITRANSBUFEMPTY;
1522 midi->ipr_rx = IPR_MIDIRECVBUFEMPTY;
1523 midi->interrupt = snd_emu10k1x_midi_interrupt;
1524 return 0;
1525 }
1526
snd_emu10k1x_probe(struct pci_dev * pci,const struct pci_device_id * pci_id)1527 static int snd_emu10k1x_probe(struct pci_dev *pci,
1528 const struct pci_device_id *pci_id)
1529 {
1530 static int dev;
1531 struct snd_card *card;
1532 struct emu10k1x *chip;
1533 int err;
1534
1535 if (dev >= SNDRV_CARDS)
1536 return -ENODEV;
1537 if (!enable[dev]) {
1538 dev++;
1539 return -ENOENT;
1540 }
1541
1542 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1543 0, &card);
1544 if (err < 0)
1545 return err;
1546
1547 if ((err = snd_emu10k1x_create(card, pci, &chip)) < 0) {
1548 snd_card_free(card);
1549 return err;
1550 }
1551
1552 if ((err = snd_emu10k1x_pcm(chip, 0)) < 0) {
1553 snd_card_free(card);
1554 return err;
1555 }
1556 if ((err = snd_emu10k1x_pcm(chip, 1)) < 0) {
1557 snd_card_free(card);
1558 return err;
1559 }
1560 if ((err = snd_emu10k1x_pcm(chip, 2)) < 0) {
1561 snd_card_free(card);
1562 return err;
1563 }
1564
1565 if ((err = snd_emu10k1x_ac97(chip)) < 0) {
1566 snd_card_free(card);
1567 return err;
1568 }
1569
1570 if ((err = snd_emu10k1x_mixer(chip)) < 0) {
1571 snd_card_free(card);
1572 return err;
1573 }
1574
1575 if ((err = snd_emu10k1x_midi(chip)) < 0) {
1576 snd_card_free(card);
1577 return err;
1578 }
1579
1580 snd_emu10k1x_proc_init(chip);
1581
1582 strcpy(card->driver, "EMU10K1X");
1583 strcpy(card->shortname, "Dell Sound Blaster Live!");
1584 sprintf(card->longname, "%s at 0x%lx irq %i",
1585 card->shortname, chip->port, chip->irq);
1586
1587 if ((err = snd_card_register(card)) < 0) {
1588 snd_card_free(card);
1589 return err;
1590 }
1591
1592 pci_set_drvdata(pci, card);
1593 dev++;
1594 return 0;
1595 }
1596
snd_emu10k1x_remove(struct pci_dev * pci)1597 static void snd_emu10k1x_remove(struct pci_dev *pci)
1598 {
1599 snd_card_free(pci_get_drvdata(pci));
1600 }
1601
1602 // PCI IDs
1603 static const struct pci_device_id snd_emu10k1x_ids[] = {
1604 { PCI_VDEVICE(CREATIVE, 0x0006), 0 }, /* Dell OEM version (EMU10K1) */
1605 { 0, }
1606 };
1607 MODULE_DEVICE_TABLE(pci, snd_emu10k1x_ids);
1608
1609 // pci_driver definition
1610 static struct pci_driver emu10k1x_driver = {
1611 .name = KBUILD_MODNAME,
1612 .id_table = snd_emu10k1x_ids,
1613 .probe = snd_emu10k1x_probe,
1614 .remove = snd_emu10k1x_remove,
1615 };
1616
1617 module_pci_driver(emu10k1x_driver);
1618
