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175859bf DD |
1 | /* |
2 | * Driver for SiS7019 Audio Accelerator | |
3 | * | |
4 | * Copyright (C) 2004-2007, David Dillow | |
5 | * Written by David Dillow <dave@thedillows.org> | |
6 | * Inspired by the Trident 4D-WaveDX/NX driver. | |
7 | * | |
8 | * All rights reserved. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation, version 2. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | */ | |
23 | ||
175859bf DD |
24 | #include <linux/init.h> |
25 | #include <linux/pci.h> | |
26 | #include <linux/time.h> | |
5a0e3ad6 | 27 | #include <linux/slab.h> |
175859bf DD |
28 | #include <linux/moduleparam.h> |
29 | #include <linux/interrupt.h> | |
30 | #include <linux/delay.h> | |
31 | #include <sound/core.h> | |
32 | #include <sound/ac97_codec.h> | |
33 | #include <sound/initval.h> | |
34 | #include "sis7019.h" | |
35 | ||
36 | MODULE_AUTHOR("David Dillow <dave@thedillows.org>"); | |
37 | MODULE_DESCRIPTION("SiS7019"); | |
38 | MODULE_LICENSE("GPL"); | |
39 | MODULE_SUPPORTED_DEVICE("{{SiS,SiS7019 Audio Accelerator}}"); | |
40 | ||
41 | static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */ | |
42 | static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */ | |
43 | static int enable = 1; | |
44 | ||
45 | module_param(index, int, 0444); | |
46 | MODULE_PARM_DESC(index, "Index value for SiS7019 Audio Accelerator."); | |
47 | module_param(id, charp, 0444); | |
48 | MODULE_PARM_DESC(id, "ID string for SiS7019 Audio Accelerator."); | |
49 | module_param(enable, bool, 0444); | |
50 | MODULE_PARM_DESC(enable, "Enable SiS7019 Audio Accelerator."); | |
51 | ||
cebe41d4 | 52 | static DEFINE_PCI_DEVICE_TABLE(snd_sis7019_ids) = { |
175859bf DD |
53 | { PCI_DEVICE(PCI_VENDOR_ID_SI, 0x7019) }, |
54 | { 0, } | |
55 | }; | |
56 | ||
57 | MODULE_DEVICE_TABLE(pci, snd_sis7019_ids); | |
58 | ||
59 | /* There are three timing modes for the voices. | |
60 | * | |
61 | * For both playback and capture, when the buffer is one or two periods long, | |
62 | * we use the hardware's built-in Mid-Loop Interrupt and End-Loop Interrupt | |
63 | * to let us know when the periods have ended. | |
64 | * | |
65 | * When performing playback with more than two periods per buffer, we set | |
66 | * the "Stop Sample Offset" and tell the hardware to interrupt us when we | |
67 | * reach it. We then update the offset and continue on until we are | |
68 | * interrupted for the next period. | |
69 | * | |
70 | * Capture channels do not have a SSO, so we allocate a playback channel to | |
71 | * use as a timer for the capture periods. We use the SSO on the playback | |
72 | * channel to clock out virtual periods, and adjust the virtual period length | |
73 | * to maintain synchronization. This algorithm came from the Trident driver. | |
74 | * | |
75 | * FIXME: It'd be nice to make use of some of the synth features in the | |
76 | * hardware, but a woeful lack of documentation is a significant roadblock. | |
77 | */ | |
78 | struct voice { | |
79 | u16 flags; | |
80 | #define VOICE_IN_USE 1 | |
81 | #define VOICE_CAPTURE 2 | |
82 | #define VOICE_SSO_TIMING 4 | |
83 | #define VOICE_SYNC_TIMING 8 | |
84 | u16 sync_cso; | |
85 | u16 period_size; | |
86 | u16 buffer_size; | |
87 | u16 sync_period_size; | |
88 | u16 sync_buffer_size; | |
89 | u32 sso; | |
90 | u32 vperiod; | |
91 | struct snd_pcm_substream *substream; | |
92 | struct voice *timing; | |
93 | void __iomem *ctrl_base; | |
94 | void __iomem *wave_base; | |
95 | void __iomem *sync_base; | |
96 | int num; | |
97 | }; | |
98 | ||
99 | /* We need four pages to store our wave parameters during a suspend. If | |
100 | * we're not doing power management, we still need to allocate a page | |
101 | * for the silence buffer. | |
102 | */ | |
103 | #ifdef CONFIG_PM | |
104 | #define SIS_SUSPEND_PAGES 4 | |
105 | #else | |
106 | #define SIS_SUSPEND_PAGES 1 | |
107 | #endif | |
108 | ||
109 | struct sis7019 { | |
110 | unsigned long ioport; | |
111 | void __iomem *ioaddr; | |
112 | int irq; | |
113 | int codecs_present; | |
114 | ||
115 | struct pci_dev *pci; | |
116 | struct snd_pcm *pcm; | |
117 | struct snd_card *card; | |
118 | struct snd_ac97 *ac97[3]; | |
119 | ||
120 | /* Protect against more than one thread hitting the AC97 | |
121 | * registers (in a more polite manner than pounding the hardware | |
122 | * semaphore) | |
123 | */ | |
124 | struct mutex ac97_mutex; | |
125 | ||
126 | /* voice_lock protects allocation/freeing of the voice descriptions | |
127 | */ | |
128 | spinlock_t voice_lock; | |
129 | ||
130 | struct voice voices[64]; | |
131 | struct voice capture_voice; | |
132 | ||
133 | /* Allocate pages to store the internal wave state during | |
134 | * suspends. When we're operating, this can be used as a silence | |
135 | * buffer for a timing channel. | |
136 | */ | |
137 | void *suspend_state[SIS_SUSPEND_PAGES]; | |
138 | ||
139 | int silence_users; | |
140 | dma_addr_t silence_dma_addr; | |
141 | }; | |
142 | ||
143 | #define SIS_PRIMARY_CODEC_PRESENT 0x0001 | |
144 | #define SIS_SECONDARY_CODEC_PRESENT 0x0002 | |
145 | #define SIS_TERTIARY_CODEC_PRESENT 0x0004 | |
146 | ||
147 | /* The HW offset parameters (Loop End, Stop Sample, End Sample) have a | |
148 | * documented range of 8-0xfff8 samples. Given that they are 0-based, | |
149 | * that places our period/buffer range at 9-0xfff9 samples. That makes the | |
150 | * max buffer size 0xfff9 samples * 2 channels * 2 bytes per sample, and | |
151 | * max samples / min samples gives us the max periods in a buffer. | |
152 | * | |
153 | * We'll add a constraint upon open that limits the period and buffer sample | |
154 | * size to values that are legal for the hardware. | |
155 | */ | |
156 | static struct snd_pcm_hardware sis_playback_hw_info = { | |
157 | .info = (SNDRV_PCM_INFO_MMAP | | |
158 | SNDRV_PCM_INFO_MMAP_VALID | | |
159 | SNDRV_PCM_INFO_INTERLEAVED | | |
160 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
161 | SNDRV_PCM_INFO_SYNC_START | | |
162 | SNDRV_PCM_INFO_RESUME), | |
163 | .formats = (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | | |
164 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE), | |
165 | .rates = SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_CONTINUOUS, | |
166 | .rate_min = 4000, | |
167 | .rate_max = 48000, | |
168 | .channels_min = 1, | |
169 | .channels_max = 2, | |
170 | .buffer_bytes_max = (0xfff9 * 4), | |
171 | .period_bytes_min = 9, | |
172 | .period_bytes_max = (0xfff9 * 4), | |
173 | .periods_min = 1, | |
174 | .periods_max = (0xfff9 / 9), | |
175 | }; | |
176 | ||
177 | static struct snd_pcm_hardware sis_capture_hw_info = { | |
178 | .info = (SNDRV_PCM_INFO_MMAP | | |
179 | SNDRV_PCM_INFO_MMAP_VALID | | |
180 | SNDRV_PCM_INFO_INTERLEAVED | | |
181 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
182 | SNDRV_PCM_INFO_SYNC_START | | |
183 | SNDRV_PCM_INFO_RESUME), | |
184 | .formats = (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | | |
185 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE), | |
186 | .rates = SNDRV_PCM_RATE_48000, | |
187 | .rate_min = 4000, | |
188 | .rate_max = 48000, | |
189 | .channels_min = 1, | |
190 | .channels_max = 2, | |
191 | .buffer_bytes_max = (0xfff9 * 4), | |
192 | .period_bytes_min = 9, | |
193 | .period_bytes_max = (0xfff9 * 4), | |
194 | .periods_min = 1, | |
195 | .periods_max = (0xfff9 / 9), | |
196 | }; | |
197 | ||
198 | static void sis_update_sso(struct voice *voice, u16 period) | |
199 | { | |
200 | void __iomem *base = voice->ctrl_base; | |
201 | ||
202 | voice->sso += period; | |
203 | if (voice->sso >= voice->buffer_size) | |
204 | voice->sso -= voice->buffer_size; | |
205 | ||
206 | /* Enforce the documented hardware minimum offset */ | |
207 | if (voice->sso < 8) | |
208 | voice->sso = 8; | |
209 | ||
210 | /* The SSO is in the upper 16 bits of the register. */ | |
211 | writew(voice->sso & 0xffff, base + SIS_PLAY_DMA_SSO_ESO + 2); | |
212 | } | |
213 | ||
214 | static void sis_update_voice(struct voice *voice) | |
215 | { | |
216 | if (voice->flags & VOICE_SSO_TIMING) { | |
217 | sis_update_sso(voice, voice->period_size); | |
218 | } else if (voice->flags & VOICE_SYNC_TIMING) { | |
219 | int sync; | |
220 | ||
221 | /* If we've not hit the end of the virtual period, update | |
222 | * our records and keep going. | |
223 | */ | |
224 | if (voice->vperiod > voice->period_size) { | |
225 | voice->vperiod -= voice->period_size; | |
226 | if (voice->vperiod < voice->period_size) | |
227 | sis_update_sso(voice, voice->vperiod); | |
228 | else | |
229 | sis_update_sso(voice, voice->period_size); | |
230 | return; | |
231 | } | |
232 | ||
233 | /* Calculate our relative offset between the target and | |
234 | * the actual CSO value. Since we're operating in a loop, | |
235 | * if the value is more than half way around, we can | |
236 | * consider ourselves wrapped. | |
237 | */ | |
238 | sync = voice->sync_cso; | |
239 | sync -= readw(voice->sync_base + SIS_CAPTURE_DMA_FORMAT_CSO); | |
240 | if (sync > (voice->sync_buffer_size / 2)) | |
241 | sync -= voice->sync_buffer_size; | |
242 | ||
243 | /* If sync is positive, then we interrupted too early, and | |
244 | * we'll need to come back in a few samples and try again. | |
245 | * There's a minimum wait, as it takes some time for the DMA | |
246 | * engine to startup, etc... | |
247 | */ | |
248 | if (sync > 0) { | |
249 | if (sync < 16) | |
250 | sync = 16; | |
251 | sis_update_sso(voice, sync); | |
252 | return; | |
253 | } | |
254 | ||
255 | /* Ok, we interrupted right on time, or (hopefully) just | |
256 | * a bit late. We'll adjst our next waiting period based | |
257 | * on how close we got. | |
258 | * | |
259 | * We need to stay just behind the actual channel to ensure | |
260 | * it really is past a period when we get our interrupt -- | |
261 | * otherwise we'll fall into the early code above and have | |
262 | * a minimum wait time, which makes us quite late here, | |
263 | * eating into the user's time to refresh the buffer, esp. | |
264 | * if using small periods. | |
265 | * | |
266 | * If we're less than 9 samples behind, we're on target. | |
3a3d5fd1 DD |
267 | * Otherwise, shorten the next vperiod by the amount we've |
268 | * been delayed. | |
175859bf DD |
269 | */ |
270 | if (sync > -9) | |
271 | voice->vperiod = voice->sync_period_size + 1; | |
272 | else | |
3a3d5fd1 | 273 | voice->vperiod = voice->sync_period_size + sync + 10; |
175859bf DD |
274 | |
275 | if (voice->vperiod < voice->buffer_size) { | |
276 | sis_update_sso(voice, voice->vperiod); | |
277 | voice->vperiod = 0; | |
278 | } else | |
279 | sis_update_sso(voice, voice->period_size); | |
280 | ||
281 | sync = voice->sync_cso + voice->sync_period_size; | |
282 | if (sync >= voice->sync_buffer_size) | |
283 | sync -= voice->sync_buffer_size; | |
284 | voice->sync_cso = sync; | |
285 | } | |
286 | ||
287 | snd_pcm_period_elapsed(voice->substream); | |
288 | } | |
289 | ||
290 | static void sis_voice_irq(u32 status, struct voice *voice) | |
291 | { | |
292 | int bit; | |
293 | ||
294 | while (status) { | |
295 | bit = __ffs(status); | |
296 | status >>= bit + 1; | |
297 | voice += bit; | |
298 | sis_update_voice(voice); | |
299 | voice++; | |
300 | } | |
301 | } | |
302 | ||
303 | static irqreturn_t sis_interrupt(int irq, void *dev) | |
304 | { | |
305 | struct sis7019 *sis = dev; | |
306 | unsigned long io = sis->ioport; | |
307 | struct voice *voice; | |
308 | u32 intr, status; | |
309 | ||
310 | /* We only use the DMA interrupts, and we don't enable any other | |
311 | * source of interrupts. But, it is possible to see an interupt | |
312 | * status that didn't actually interrupt us, so eliminate anything | |
313 | * we're not expecting to avoid falsely claiming an IRQ, and an | |
314 | * ensuing endless loop. | |
315 | */ | |
316 | intr = inl(io + SIS_GISR); | |
317 | intr &= SIS_GISR_AUDIO_PLAY_DMA_IRQ_STATUS | | |
318 | SIS_GISR_AUDIO_RECORD_DMA_IRQ_STATUS; | |
319 | if (!intr) | |
320 | return IRQ_NONE; | |
321 | ||
322 | do { | |
323 | status = inl(io + SIS_PISR_A); | |
324 | if (status) { | |
325 | sis_voice_irq(status, sis->voices); | |
326 | outl(status, io + SIS_PISR_A); | |
327 | } | |
328 | ||
329 | status = inl(io + SIS_PISR_B); | |
330 | if (status) { | |
331 | sis_voice_irq(status, &sis->voices[32]); | |
332 | outl(status, io + SIS_PISR_B); | |
333 | } | |
334 | ||
335 | status = inl(io + SIS_RISR); | |
336 | if (status) { | |
337 | voice = &sis->capture_voice; | |
338 | if (!voice->timing) | |
339 | snd_pcm_period_elapsed(voice->substream); | |
340 | ||
341 | outl(status, io + SIS_RISR); | |
342 | } | |
343 | ||
344 | outl(intr, io + SIS_GISR); | |
345 | intr = inl(io + SIS_GISR); | |
346 | intr &= SIS_GISR_AUDIO_PLAY_DMA_IRQ_STATUS | | |
347 | SIS_GISR_AUDIO_RECORD_DMA_IRQ_STATUS; | |
348 | } while (intr); | |
349 | ||
350 | return IRQ_HANDLED; | |
351 | } | |
352 | ||
353 | static u32 sis_rate_to_delta(unsigned int rate) | |
354 | { | |
355 | u32 delta; | |
356 | ||
357 | /* This was copied from the trident driver, but it seems its gotten | |
358 | * around a bit... nevertheless, it works well. | |
359 | * | |
360 | * We special case 44100 and 8000 since rounding with the equation | |
361 | * does not give us an accurate enough value. For 11025 and 22050 | |
362 | * the equation gives us the best answer. All other frequencies will | |
363 | * also use the equation. JDW | |
364 | */ | |
365 | if (rate == 44100) | |
366 | delta = 0xeb3; | |
367 | else if (rate == 8000) | |
368 | delta = 0x2ab; | |
369 | else if (rate == 48000) | |
370 | delta = 0x1000; | |
371 | else | |
372 | delta = (((rate << 12) + 24000) / 48000) & 0x0000ffff; | |
373 | return delta; | |
374 | } | |
375 | ||
376 | static void __sis_map_silence(struct sis7019 *sis) | |
377 | { | |
378 | /* Helper function: must hold sis->voice_lock on entry */ | |
379 | if (!sis->silence_users) | |
380 | sis->silence_dma_addr = pci_map_single(sis->pci, | |
381 | sis->suspend_state[0], | |
382 | 4096, PCI_DMA_TODEVICE); | |
383 | sis->silence_users++; | |
384 | } | |
385 | ||
386 | static void __sis_unmap_silence(struct sis7019 *sis) | |
387 | { | |
388 | /* Helper function: must hold sis->voice_lock on entry */ | |
389 | sis->silence_users--; | |
390 | if (!sis->silence_users) | |
391 | pci_unmap_single(sis->pci, sis->silence_dma_addr, 4096, | |
392 | PCI_DMA_TODEVICE); | |
393 | } | |
394 | ||
395 | static void sis_free_voice(struct sis7019 *sis, struct voice *voice) | |
396 | { | |
397 | unsigned long flags; | |
398 | ||
399 | spin_lock_irqsave(&sis->voice_lock, flags); | |
400 | if (voice->timing) { | |
401 | __sis_unmap_silence(sis); | |
402 | voice->timing->flags &= ~(VOICE_IN_USE | VOICE_SSO_TIMING | | |
403 | VOICE_SYNC_TIMING); | |
404 | voice->timing = NULL; | |
405 | } | |
406 | voice->flags &= ~(VOICE_IN_USE | VOICE_SSO_TIMING | VOICE_SYNC_TIMING); | |
407 | spin_unlock_irqrestore(&sis->voice_lock, flags); | |
408 | } | |
409 | ||
410 | static struct voice *__sis_alloc_playback_voice(struct sis7019 *sis) | |
411 | { | |
412 | /* Must hold the voice_lock on entry */ | |
413 | struct voice *voice; | |
414 | int i; | |
415 | ||
416 | for (i = 0; i < 64; i++) { | |
417 | voice = &sis->voices[i]; | |
418 | if (voice->flags & VOICE_IN_USE) | |
419 | continue; | |
420 | voice->flags |= VOICE_IN_USE; | |
421 | goto found_one; | |
422 | } | |
423 | voice = NULL; | |
424 | ||
425 | found_one: | |
426 | return voice; | |
427 | } | |
428 | ||
429 | static struct voice *sis_alloc_playback_voice(struct sis7019 *sis) | |
430 | { | |
431 | struct voice *voice; | |
432 | unsigned long flags; | |
433 | ||
434 | spin_lock_irqsave(&sis->voice_lock, flags); | |
435 | voice = __sis_alloc_playback_voice(sis); | |
436 | spin_unlock_irqrestore(&sis->voice_lock, flags); | |
437 | ||
438 | return voice; | |
439 | } | |
440 | ||
441 | static int sis_alloc_timing_voice(struct snd_pcm_substream *substream, | |
442 | struct snd_pcm_hw_params *hw_params) | |
443 | { | |
444 | struct sis7019 *sis = snd_pcm_substream_chip(substream); | |
445 | struct snd_pcm_runtime *runtime = substream->runtime; | |
446 | struct voice *voice = runtime->private_data; | |
447 | unsigned int period_size, buffer_size; | |
448 | unsigned long flags; | |
449 | int needed; | |
450 | ||
451 | /* If there are one or two periods per buffer, we don't need a | |
452 | * timing voice, as we can use the capture channel's interrupts | |
453 | * to clock out the periods. | |
454 | */ | |
455 | period_size = params_period_size(hw_params); | |
456 | buffer_size = params_buffer_size(hw_params); | |
457 | needed = (period_size != buffer_size && | |
458 | period_size != (buffer_size / 2)); | |
459 | ||
460 | if (needed && !voice->timing) { | |
461 | spin_lock_irqsave(&sis->voice_lock, flags); | |
462 | voice->timing = __sis_alloc_playback_voice(sis); | |
463 | if (voice->timing) | |
464 | __sis_map_silence(sis); | |
465 | spin_unlock_irqrestore(&sis->voice_lock, flags); | |
466 | if (!voice->timing) | |
467 | return -ENOMEM; | |
468 | voice->timing->substream = substream; | |
469 | } else if (!needed && voice->timing) { | |
470 | sis_free_voice(sis, voice); | |
471 | voice->timing = NULL; | |
472 | } | |
473 | ||
474 | return 0; | |
475 | } | |
476 | ||
477 | static int sis_playback_open(struct snd_pcm_substream *substream) | |
478 | { | |
479 | struct sis7019 *sis = snd_pcm_substream_chip(substream); | |
480 | struct snd_pcm_runtime *runtime = substream->runtime; | |
481 | struct voice *voice; | |
482 | ||
483 | voice = sis_alloc_playback_voice(sis); | |
484 | if (!voice) | |
485 | return -EAGAIN; | |
486 | ||
487 | voice->substream = substream; | |
488 | runtime->private_data = voice; | |
489 | runtime->hw = sis_playback_hw_info; | |
490 | snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, | |
491 | 9, 0xfff9); | |
492 | snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, | |
493 | 9, 0xfff9); | |
494 | snd_pcm_set_sync(substream); | |
495 | return 0; | |
496 | } | |
497 | ||
498 | static int sis_substream_close(struct snd_pcm_substream *substream) | |
499 | { | |
500 | struct sis7019 *sis = snd_pcm_substream_chip(substream); | |
501 | struct snd_pcm_runtime *runtime = substream->runtime; | |
502 | struct voice *voice = runtime->private_data; | |
503 | ||
504 | sis_free_voice(sis, voice); | |
505 | return 0; | |
506 | } | |
507 | ||
508 | static int sis_playback_hw_params(struct snd_pcm_substream *substream, | |
509 | struct snd_pcm_hw_params *hw_params) | |
510 | { | |
511 | return snd_pcm_lib_malloc_pages(substream, | |
512 | params_buffer_bytes(hw_params)); | |
513 | } | |
514 | ||
515 | static int sis_hw_free(struct snd_pcm_substream *substream) | |
516 | { | |
517 | return snd_pcm_lib_free_pages(substream); | |
518 | } | |
519 | ||
520 | static int sis_pcm_playback_prepare(struct snd_pcm_substream *substream) | |
521 | { | |
522 | struct snd_pcm_runtime *runtime = substream->runtime; | |
523 | struct voice *voice = runtime->private_data; | |
524 | void __iomem *ctrl_base = voice->ctrl_base; | |
525 | void __iomem *wave_base = voice->wave_base; | |
526 | u32 format, dma_addr, control, sso_eso, delta, reg; | |
527 | u16 leo; | |
528 | ||
529 | /* We rely on the PCM core to ensure that the parameters for this | |
530 | * substream do not change on us while we're programming the HW. | |
531 | */ | |
532 | format = 0; | |
533 | if (snd_pcm_format_width(runtime->format) == 8) | |
534 | format |= SIS_PLAY_DMA_FORMAT_8BIT; | |
535 | if (!snd_pcm_format_signed(runtime->format)) | |
536 | format |= SIS_PLAY_DMA_FORMAT_UNSIGNED; | |
537 | if (runtime->channels == 1) | |
538 | format |= SIS_PLAY_DMA_FORMAT_MONO; | |
539 | ||
540 | /* The baseline setup is for a single period per buffer, and | |
541 | * we add bells and whistles as needed from there. | |
542 | */ | |
543 | dma_addr = runtime->dma_addr; | |
544 | leo = runtime->buffer_size - 1; | |
545 | control = leo | SIS_PLAY_DMA_LOOP | SIS_PLAY_DMA_INTR_AT_LEO; | |
546 | sso_eso = leo; | |
547 | ||
548 | if (runtime->period_size == (runtime->buffer_size / 2)) { | |
549 | control |= SIS_PLAY_DMA_INTR_AT_MLP; | |
550 | } else if (runtime->period_size != runtime->buffer_size) { | |
551 | voice->flags |= VOICE_SSO_TIMING; | |
552 | voice->sso = runtime->period_size - 1; | |
553 | voice->period_size = runtime->period_size; | |
554 | voice->buffer_size = runtime->buffer_size; | |
555 | ||
556 | control &= ~SIS_PLAY_DMA_INTR_AT_LEO; | |
557 | control |= SIS_PLAY_DMA_INTR_AT_SSO; | |
558 | sso_eso |= (runtime->period_size - 1) << 16; | |
559 | } | |
560 | ||
561 | delta = sis_rate_to_delta(runtime->rate); | |
562 | ||
563 | /* Ok, we're ready to go, set up the channel. | |
564 | */ | |
565 | writel(format, ctrl_base + SIS_PLAY_DMA_FORMAT_CSO); | |
566 | writel(dma_addr, ctrl_base + SIS_PLAY_DMA_BASE); | |
567 | writel(control, ctrl_base + SIS_PLAY_DMA_CONTROL); | |
568 | writel(sso_eso, ctrl_base + SIS_PLAY_DMA_SSO_ESO); | |
569 | ||
570 | for (reg = 0; reg < SIS_WAVE_SIZE; reg += 4) | |
571 | writel(0, wave_base + reg); | |
572 | ||
573 | writel(SIS_WAVE_GENERAL_WAVE_VOLUME, wave_base + SIS_WAVE_GENERAL); | |
574 | writel(delta << 16, wave_base + SIS_WAVE_GENERAL_ARTICULATION); | |
575 | writel(SIS_WAVE_CHANNEL_CONTROL_FIRST_SAMPLE | | |
576 | SIS_WAVE_CHANNEL_CONTROL_AMP_ENABLE | | |
577 | SIS_WAVE_CHANNEL_CONTROL_INTERPOLATE_ENABLE, | |
578 | wave_base + SIS_WAVE_CHANNEL_CONTROL); | |
579 | ||
580 | /* Force PCI writes to post. */ | |
581 | readl(ctrl_base); | |
582 | ||
583 | return 0; | |
584 | } | |
585 | ||
586 | static int sis_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
587 | { | |
588 | struct sis7019 *sis = snd_pcm_substream_chip(substream); | |
589 | unsigned long io = sis->ioport; | |
590 | struct snd_pcm_substream *s; | |
591 | struct voice *voice; | |
592 | void *chip; | |
593 | int starting; | |
594 | u32 record = 0; | |
595 | u32 play[2] = { 0, 0 }; | |
596 | ||
597 | /* No locks needed, as the PCM core will hold the locks on the | |
598 | * substreams, and the HW will only start/stop the indicated voices | |
599 | * without changing the state of the others. | |
600 | */ | |
601 | switch (cmd) { | |
602 | case SNDRV_PCM_TRIGGER_START: | |
603 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
604 | case SNDRV_PCM_TRIGGER_RESUME: | |
605 | starting = 1; | |
606 | break; | |
607 | case SNDRV_PCM_TRIGGER_STOP: | |
608 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
609 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
610 | starting = 0; | |
611 | break; | |
612 | default: | |
613 | return -EINVAL; | |
614 | } | |
615 | ||
616 | snd_pcm_group_for_each_entry(s, substream) { | |
617 | /* Make sure it is for us... */ | |
618 | chip = snd_pcm_substream_chip(s); | |
619 | if (chip != sis) | |
620 | continue; | |
621 | ||
622 | voice = s->runtime->private_data; | |
623 | if (voice->flags & VOICE_CAPTURE) { | |
624 | record |= 1 << voice->num; | |
625 | voice = voice->timing; | |
626 | } | |
627 | ||
628 | /* voice could be NULL if this a recording stream, and it | |
629 | * doesn't have an external timing channel. | |
630 | */ | |
631 | if (voice) | |
632 | play[voice->num / 32] |= 1 << (voice->num & 0x1f); | |
633 | ||
634 | snd_pcm_trigger_done(s, substream); | |
635 | } | |
636 | ||
637 | if (starting) { | |
638 | if (record) | |
639 | outl(record, io + SIS_RECORD_START_REG); | |
640 | if (play[0]) | |
641 | outl(play[0], io + SIS_PLAY_START_A_REG); | |
642 | if (play[1]) | |
643 | outl(play[1], io + SIS_PLAY_START_B_REG); | |
644 | } else { | |
645 | if (record) | |
646 | outl(record, io + SIS_RECORD_STOP_REG); | |
647 | if (play[0]) | |
648 | outl(play[0], io + SIS_PLAY_STOP_A_REG); | |
649 | if (play[1]) | |
650 | outl(play[1], io + SIS_PLAY_STOP_B_REG); | |
651 | } | |
652 | return 0; | |
653 | } | |
654 | ||
655 | static snd_pcm_uframes_t sis_pcm_pointer(struct snd_pcm_substream *substream) | |
656 | { | |
657 | struct snd_pcm_runtime *runtime = substream->runtime; | |
658 | struct voice *voice = runtime->private_data; | |
659 | u32 cso; | |
660 | ||
661 | cso = readl(voice->ctrl_base + SIS_PLAY_DMA_FORMAT_CSO); | |
662 | cso &= 0xffff; | |
663 | return cso; | |
664 | } | |
665 | ||
666 | static int sis_capture_open(struct snd_pcm_substream *substream) | |
667 | { | |
668 | struct sis7019 *sis = snd_pcm_substream_chip(substream); | |
669 | struct snd_pcm_runtime *runtime = substream->runtime; | |
670 | struct voice *voice = &sis->capture_voice; | |
671 | unsigned long flags; | |
672 | ||
673 | /* FIXME: The driver only supports recording from one channel | |
674 | * at the moment, but it could support more. | |
675 | */ | |
676 | spin_lock_irqsave(&sis->voice_lock, flags); | |
677 | if (voice->flags & VOICE_IN_USE) | |
678 | voice = NULL; | |
679 | else | |
680 | voice->flags |= VOICE_IN_USE; | |
681 | spin_unlock_irqrestore(&sis->voice_lock, flags); | |
682 | ||
683 | if (!voice) | |
684 | return -EAGAIN; | |
685 | ||
686 | voice->substream = substream; | |
687 | runtime->private_data = voice; | |
688 | runtime->hw = sis_capture_hw_info; | |
689 | runtime->hw.rates = sis->ac97[0]->rates[AC97_RATES_ADC]; | |
690 | snd_pcm_limit_hw_rates(runtime); | |
691 | snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, | |
692 | 9, 0xfff9); | |
693 | snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, | |
694 | 9, 0xfff9); | |
695 | snd_pcm_set_sync(substream); | |
696 | return 0; | |
697 | } | |
698 | ||
699 | static int sis_capture_hw_params(struct snd_pcm_substream *substream, | |
700 | struct snd_pcm_hw_params *hw_params) | |
701 | { | |
702 | struct sis7019 *sis = snd_pcm_substream_chip(substream); | |
703 | int rc; | |
704 | ||
705 | rc = snd_ac97_set_rate(sis->ac97[0], AC97_PCM_LR_ADC_RATE, | |
706 | params_rate(hw_params)); | |
707 | if (rc) | |
708 | goto out; | |
709 | ||
710 | rc = snd_pcm_lib_malloc_pages(substream, | |
711 | params_buffer_bytes(hw_params)); | |
712 | if (rc < 0) | |
713 | goto out; | |
714 | ||
715 | rc = sis_alloc_timing_voice(substream, hw_params); | |
716 | ||
717 | out: | |
718 | return rc; | |
719 | } | |
720 | ||
721 | static void sis_prepare_timing_voice(struct voice *voice, | |
722 | struct snd_pcm_substream *substream) | |
723 | { | |
724 | struct sis7019 *sis = snd_pcm_substream_chip(substream); | |
725 | struct snd_pcm_runtime *runtime = substream->runtime; | |
726 | struct voice *timing = voice->timing; | |
727 | void __iomem *play_base = timing->ctrl_base; | |
728 | void __iomem *wave_base = timing->wave_base; | |
729 | u16 buffer_size, period_size; | |
730 | u32 format, control, sso_eso, delta; | |
731 | u32 vperiod, sso, reg; | |
732 | ||
733 | /* Set our initial buffer and period as large as we can given a | |
734 | * single page of silence. | |
735 | */ | |
736 | buffer_size = 4096 / runtime->channels; | |
737 | buffer_size /= snd_pcm_format_size(runtime->format, 1); | |
738 | period_size = buffer_size; | |
739 | ||
740 | /* Initially, we want to interrupt just a bit behind the end of | |
3a3d5fd1 | 741 | * the period we're clocking out. 12 samples seems to give a good |
175859bf DD |
742 | * delay. |
743 | * | |
744 | * We want to spread our interrupts throughout the virtual period, | |
745 | * so that we don't end up with two interrupts back to back at the | |
746 | * end -- this helps minimize the effects of any jitter. Adjust our | |
747 | * clocking period size so that the last period is at least a fourth | |
748 | * of a full period. | |
749 | * | |
750 | * This is all moot if we don't need to use virtual periods. | |
751 | */ | |
3a3d5fd1 | 752 | vperiod = runtime->period_size + 12; |
175859bf DD |
753 | if (vperiod > period_size) { |
754 | u16 tail = vperiod % period_size; | |
755 | u16 quarter_period = period_size / 4; | |
756 | ||
757 | if (tail && tail < quarter_period) { | |
758 | u16 loops = vperiod / period_size; | |
759 | ||
760 | tail = quarter_period - tail; | |
761 | tail += loops - 1; | |
762 | tail /= loops; | |
763 | period_size -= tail; | |
764 | } | |
765 | ||
766 | sso = period_size - 1; | |
767 | } else { | |
768 | /* The initial period will fit inside the buffer, so we | |
769 | * don't need to use virtual periods -- disable them. | |
770 | */ | |
771 | period_size = runtime->period_size; | |
772 | sso = vperiod - 1; | |
773 | vperiod = 0; | |
774 | } | |
775 | ||
776 | /* The interrupt handler implements the timing syncronization, so | |
777 | * setup its state. | |
778 | */ | |
779 | timing->flags |= VOICE_SYNC_TIMING; | |
780 | timing->sync_base = voice->ctrl_base; | |
3a3d5fd1 | 781 | timing->sync_cso = runtime->period_size; |
175859bf DD |
782 | timing->sync_period_size = runtime->period_size; |
783 | timing->sync_buffer_size = runtime->buffer_size; | |
784 | timing->period_size = period_size; | |
785 | timing->buffer_size = buffer_size; | |
786 | timing->sso = sso; | |
787 | timing->vperiod = vperiod; | |
788 | ||
789 | /* Using unsigned samples with the all-zero silence buffer | |
790 | * forces the output to the lower rail, killing playback. | |
791 | * So ignore unsigned vs signed -- it doesn't change the timing. | |
792 | */ | |
793 | format = 0; | |
794 | if (snd_pcm_format_width(runtime->format) == 8) | |
795 | format = SIS_CAPTURE_DMA_FORMAT_8BIT; | |
796 | if (runtime->channels == 1) | |
797 | format |= SIS_CAPTURE_DMA_FORMAT_MONO; | |
798 | ||
799 | control = timing->buffer_size - 1; | |
800 | control |= SIS_PLAY_DMA_LOOP | SIS_PLAY_DMA_INTR_AT_SSO; | |
801 | sso_eso = timing->buffer_size - 1; | |
802 | sso_eso |= timing->sso << 16; | |
803 | ||
804 | delta = sis_rate_to_delta(runtime->rate); | |
805 | ||
806 | /* We've done the math, now configure the channel. | |
807 | */ | |
808 | writel(format, play_base + SIS_PLAY_DMA_FORMAT_CSO); | |
809 | writel(sis->silence_dma_addr, play_base + SIS_PLAY_DMA_BASE); | |
810 | writel(control, play_base + SIS_PLAY_DMA_CONTROL); | |
811 | writel(sso_eso, play_base + SIS_PLAY_DMA_SSO_ESO); | |
812 | ||
813 | for (reg = 0; reg < SIS_WAVE_SIZE; reg += 4) | |
814 | writel(0, wave_base + reg); | |
815 | ||
816 | writel(SIS_WAVE_GENERAL_WAVE_VOLUME, wave_base + SIS_WAVE_GENERAL); | |
817 | writel(delta << 16, wave_base + SIS_WAVE_GENERAL_ARTICULATION); | |
818 | writel(SIS_WAVE_CHANNEL_CONTROL_FIRST_SAMPLE | | |
819 | SIS_WAVE_CHANNEL_CONTROL_AMP_ENABLE | | |
820 | SIS_WAVE_CHANNEL_CONTROL_INTERPOLATE_ENABLE, | |
821 | wave_base + SIS_WAVE_CHANNEL_CONTROL); | |
822 | } | |
823 | ||
824 | static int sis_pcm_capture_prepare(struct snd_pcm_substream *substream) | |
825 | { | |
826 | struct snd_pcm_runtime *runtime = substream->runtime; | |
827 | struct voice *voice = runtime->private_data; | |
828 | void __iomem *rec_base = voice->ctrl_base; | |
829 | u32 format, dma_addr, control; | |
830 | u16 leo; | |
831 | ||
832 | /* We rely on the PCM core to ensure that the parameters for this | |
833 | * substream do not change on us while we're programming the HW. | |
834 | */ | |
835 | format = 0; | |
836 | if (snd_pcm_format_width(runtime->format) == 8) | |
837 | format = SIS_CAPTURE_DMA_FORMAT_8BIT; | |
838 | if (!snd_pcm_format_signed(runtime->format)) | |
839 | format |= SIS_CAPTURE_DMA_FORMAT_UNSIGNED; | |
840 | if (runtime->channels == 1) | |
841 | format |= SIS_CAPTURE_DMA_FORMAT_MONO; | |
842 | ||
843 | dma_addr = runtime->dma_addr; | |
844 | leo = runtime->buffer_size - 1; | |
845 | control = leo | SIS_CAPTURE_DMA_LOOP; | |
846 | ||
847 | /* If we've got more than two periods per buffer, then we have | |
848 | * use a timing voice to clock out the periods. Otherwise, we can | |
849 | * use the capture channel's interrupts. | |
850 | */ | |
851 | if (voice->timing) { | |
852 | sis_prepare_timing_voice(voice, substream); | |
853 | } else { | |
854 | control |= SIS_CAPTURE_DMA_INTR_AT_LEO; | |
855 | if (runtime->period_size != runtime->buffer_size) | |
856 | control |= SIS_CAPTURE_DMA_INTR_AT_MLP; | |
857 | } | |
858 | ||
859 | writel(format, rec_base + SIS_CAPTURE_DMA_FORMAT_CSO); | |
860 | writel(dma_addr, rec_base + SIS_CAPTURE_DMA_BASE); | |
861 | writel(control, rec_base + SIS_CAPTURE_DMA_CONTROL); | |
862 | ||
863 | /* Force the writes to post. */ | |
864 | readl(rec_base); | |
865 | ||
866 | return 0; | |
867 | } | |
868 | ||
869 | static struct snd_pcm_ops sis_playback_ops = { | |
870 | .open = sis_playback_open, | |
871 | .close = sis_substream_close, | |
872 | .ioctl = snd_pcm_lib_ioctl, | |
873 | .hw_params = sis_playback_hw_params, | |
874 | .hw_free = sis_hw_free, | |
875 | .prepare = sis_pcm_playback_prepare, | |
876 | .trigger = sis_pcm_trigger, | |
877 | .pointer = sis_pcm_pointer, | |
878 | }; | |
879 | ||
880 | static struct snd_pcm_ops sis_capture_ops = { | |
881 | .open = sis_capture_open, | |
882 | .close = sis_substream_close, | |
883 | .ioctl = snd_pcm_lib_ioctl, | |
884 | .hw_params = sis_capture_hw_params, | |
885 | .hw_free = sis_hw_free, | |
886 | .prepare = sis_pcm_capture_prepare, | |
887 | .trigger = sis_pcm_trigger, | |
888 | .pointer = sis_pcm_pointer, | |
889 | }; | |
890 | ||
891 | static int __devinit sis_pcm_create(struct sis7019 *sis) | |
892 | { | |
893 | struct snd_pcm *pcm; | |
894 | int rc; | |
895 | ||
896 | /* We have 64 voices, and the driver currently records from | |
897 | * only one channel, though that could change in the future. | |
898 | */ | |
899 | rc = snd_pcm_new(sis->card, "SiS7019", 0, 64, 1, &pcm); | |
900 | if (rc) | |
901 | return rc; | |
902 | ||
903 | pcm->private_data = sis; | |
904 | strcpy(pcm->name, "SiS7019"); | |
905 | sis->pcm = pcm; | |
906 | ||
907 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &sis_playback_ops); | |
908 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &sis_capture_ops); | |
909 | ||
910 | /* Try to preallocate some memory, but it's not the end of the | |
911 | * world if this fails. | |
912 | */ | |
913 | snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, | |
914 | snd_dma_pci_data(sis->pci), 64*1024, 128*1024); | |
915 | ||
916 | return 0; | |
917 | } | |
918 | ||
919 | static unsigned short sis_ac97_rw(struct sis7019 *sis, int codec, u32 cmd) | |
920 | { | |
921 | unsigned long io = sis->ioport; | |
922 | unsigned short val = 0xffff; | |
923 | u16 status; | |
924 | u16 rdy; | |
925 | int count; | |
3f76d984 | 926 | static const u16 codec_ready[3] = { |
175859bf DD |
927 | SIS_AC97_STATUS_CODEC_READY, |
928 | SIS_AC97_STATUS_CODEC2_READY, | |
929 | SIS_AC97_STATUS_CODEC3_READY, | |
930 | }; | |
931 | ||
932 | rdy = codec_ready[codec]; | |
933 | ||
934 | ||
935 | /* Get the AC97 semaphore -- software first, so we don't spin | |
936 | * pounding out IO reads on the hardware semaphore... | |
937 | */ | |
938 | mutex_lock(&sis->ac97_mutex); | |
939 | ||
940 | count = 0xffff; | |
941 | while ((inw(io + SIS_AC97_SEMA) & SIS_AC97_SEMA_BUSY) && --count) | |
942 | udelay(1); | |
943 | ||
944 | if (!count) | |
945 | goto timeout; | |
946 | ||
947 | /* ... and wait for any outstanding commands to complete ... | |
948 | */ | |
949 | count = 0xffff; | |
950 | do { | |
951 | status = inw(io + SIS_AC97_STATUS); | |
952 | if ((status & rdy) && !(status & SIS_AC97_STATUS_BUSY)) | |
953 | break; | |
954 | ||
955 | udelay(1); | |
956 | } while (--count); | |
957 | ||
958 | if (!count) | |
959 | goto timeout_sema; | |
960 | ||
961 | /* ... before sending our command and waiting for it to finish ... | |
962 | */ | |
963 | outl(cmd, io + SIS_AC97_CMD); | |
964 | udelay(10); | |
965 | ||
966 | count = 0xffff; | |
967 | while ((inw(io + SIS_AC97_STATUS) & SIS_AC97_STATUS_BUSY) && --count) | |
968 | udelay(1); | |
969 | ||
970 | /* ... and reading the results (if any). | |
971 | */ | |
972 | val = inl(io + SIS_AC97_CMD) >> 16; | |
973 | ||
974 | timeout_sema: | |
975 | outl(SIS_AC97_SEMA_RELEASE, io + SIS_AC97_SEMA); | |
976 | timeout: | |
977 | mutex_unlock(&sis->ac97_mutex); | |
978 | ||
979 | if (!count) { | |
980 | printk(KERN_ERR "sis7019: ac97 codec %d timeout cmd 0x%08x\n", | |
981 | codec, cmd); | |
982 | } | |
983 | ||
984 | return val; | |
985 | } | |
986 | ||
987 | static void sis_ac97_write(struct snd_ac97 *ac97, unsigned short reg, | |
988 | unsigned short val) | |
989 | { | |
3f76d984 | 990 | static const u32 cmd[3] = { |
175859bf DD |
991 | SIS_AC97_CMD_CODEC_WRITE, |
992 | SIS_AC97_CMD_CODEC2_WRITE, | |
993 | SIS_AC97_CMD_CODEC3_WRITE, | |
994 | }; | |
995 | sis_ac97_rw(ac97->private_data, ac97->num, | |
996 | (val << 16) | (reg << 8) | cmd[ac97->num]); | |
997 | } | |
998 | ||
999 | static unsigned short sis_ac97_read(struct snd_ac97 *ac97, unsigned short reg) | |
1000 | { | |
3f76d984 | 1001 | static const u32 cmd[3] = { |
175859bf DD |
1002 | SIS_AC97_CMD_CODEC_READ, |
1003 | SIS_AC97_CMD_CODEC2_READ, | |
1004 | SIS_AC97_CMD_CODEC3_READ, | |
1005 | }; | |
1006 | return sis_ac97_rw(ac97->private_data, ac97->num, | |
1007 | (reg << 8) | cmd[ac97->num]); | |
1008 | } | |
1009 | ||
1010 | static int __devinit sis_mixer_create(struct sis7019 *sis) | |
1011 | { | |
1012 | struct snd_ac97_bus *bus; | |
1013 | struct snd_ac97_template ac97; | |
1014 | static struct snd_ac97_bus_ops ops = { | |
1015 | .write = sis_ac97_write, | |
1016 | .read = sis_ac97_read, | |
1017 | }; | |
1018 | int rc; | |
1019 | ||
1020 | memset(&ac97, 0, sizeof(ac97)); | |
1021 | ac97.private_data = sis; | |
1022 | ||
1023 | rc = snd_ac97_bus(sis->card, 0, &ops, NULL, &bus); | |
1024 | if (!rc && sis->codecs_present & SIS_PRIMARY_CODEC_PRESENT) | |
1025 | rc = snd_ac97_mixer(bus, &ac97, &sis->ac97[0]); | |
1026 | ac97.num = 1; | |
1027 | if (!rc && (sis->codecs_present & SIS_SECONDARY_CODEC_PRESENT)) | |
1028 | rc = snd_ac97_mixer(bus, &ac97, &sis->ac97[1]); | |
1029 | ac97.num = 2; | |
1030 | if (!rc && (sis->codecs_present & SIS_TERTIARY_CODEC_PRESENT)) | |
1031 | rc = snd_ac97_mixer(bus, &ac97, &sis->ac97[2]); | |
1032 | ||
1033 | /* If we return an error here, then snd_card_free() should | |
1034 | * free up any ac97 codecs that got created, as well as the bus. | |
1035 | */ | |
1036 | return rc; | |
1037 | } | |
1038 | ||
1039 | static void sis_free_suspend(struct sis7019 *sis) | |
1040 | { | |
1041 | int i; | |
1042 | ||
1043 | for (i = 0; i < SIS_SUSPEND_PAGES; i++) | |
1044 | kfree(sis->suspend_state[i]); | |
1045 | } | |
1046 | ||
1047 | static int sis_chip_free(struct sis7019 *sis) | |
1048 | { | |
1049 | /* Reset the chip, and disable all interrputs. | |
1050 | */ | |
1051 | outl(SIS_GCR_SOFTWARE_RESET, sis->ioport + SIS_GCR); | |
08b45098 | 1052 | udelay(25); |
175859bf DD |
1053 | outl(0, sis->ioport + SIS_GCR); |
1054 | outl(0, sis->ioport + SIS_GIER); | |
1055 | ||
1056 | /* Now, free everything we allocated. | |
1057 | */ | |
1058 | if (sis->irq >= 0) | |
1059 | free_irq(sis->irq, sis); | |
1060 | ||
1061 | if (sis->ioaddr) | |
1062 | iounmap(sis->ioaddr); | |
1063 | ||
1064 | pci_release_regions(sis->pci); | |
1065 | pci_disable_device(sis->pci); | |
1066 | ||
1067 | sis_free_suspend(sis); | |
1068 | return 0; | |
1069 | } | |
1070 | ||
1071 | static int sis_dev_free(struct snd_device *dev) | |
1072 | { | |
1073 | struct sis7019 *sis = dev->device_data; | |
1074 | return sis_chip_free(sis); | |
1075 | } | |
1076 | ||
1077 | static int sis_chip_init(struct sis7019 *sis) | |
1078 | { | |
1079 | unsigned long io = sis->ioport; | |
1080 | void __iomem *ioaddr = sis->ioaddr; | |
1081 | u16 status; | |
1082 | int count; | |
1083 | int i; | |
1084 | ||
1085 | /* Reset the audio controller | |
1086 | */ | |
1087 | outl(SIS_GCR_SOFTWARE_RESET, io + SIS_GCR); | |
08b45098 | 1088 | udelay(25); |
175859bf DD |
1089 | outl(0, io + SIS_GCR); |
1090 | ||
1091 | /* Get the AC-link semaphore, and reset the codecs | |
1092 | */ | |
1093 | count = 0xffff; | |
1094 | while ((inw(io + SIS_AC97_SEMA) & SIS_AC97_SEMA_BUSY) && --count) | |
1095 | udelay(1); | |
1096 | ||
1097 | if (!count) | |
1098 | return -EIO; | |
1099 | ||
1100 | outl(SIS_AC97_CMD_CODEC_COLD_RESET, io + SIS_AC97_CMD); | |
08b45098 | 1101 | udelay(250); |
175859bf DD |
1102 | |
1103 | count = 0xffff; | |
1104 | while ((inw(io + SIS_AC97_STATUS) & SIS_AC97_STATUS_BUSY) && --count) | |
1105 | udelay(1); | |
1106 | ||
1107 | /* Now that we've finished the reset, find out what's attached. | |
1108 | */ | |
1109 | status = inl(io + SIS_AC97_STATUS); | |
1110 | if (status & SIS_AC97_STATUS_CODEC_READY) | |
1111 | sis->codecs_present |= SIS_PRIMARY_CODEC_PRESENT; | |
1112 | if (status & SIS_AC97_STATUS_CODEC2_READY) | |
1113 | sis->codecs_present |= SIS_SECONDARY_CODEC_PRESENT; | |
1114 | if (status & SIS_AC97_STATUS_CODEC3_READY) | |
1115 | sis->codecs_present |= SIS_TERTIARY_CODEC_PRESENT; | |
1116 | ||
1117 | /* All done, let go of the semaphore, and check for errors | |
1118 | */ | |
1119 | outl(SIS_AC97_SEMA_RELEASE, io + SIS_AC97_SEMA); | |
1120 | if (!sis->codecs_present || !count) | |
1121 | return -EIO; | |
1122 | ||
1123 | /* Let the hardware know that the audio driver is alive, | |
1124 | * and enable PCM slots on the AC-link for L/R playback (3 & 4) and | |
1125 | * record channels. We're going to want to use Variable Rate Audio | |
1126 | * for recording, to avoid needlessly resampling from 48kHZ. | |
1127 | */ | |
1128 | outl(SIS_AC97_CONF_AUDIO_ALIVE, io + SIS_AC97_CONF); | |
1129 | outl(SIS_AC97_CONF_AUDIO_ALIVE | SIS_AC97_CONF_PCM_LR_ENABLE | | |
1130 | SIS_AC97_CONF_PCM_CAP_MIC_ENABLE | | |
1131 | SIS_AC97_CONF_PCM_CAP_LR_ENABLE | | |
1132 | SIS_AC97_CONF_CODEC_VRA_ENABLE, io + SIS_AC97_CONF); | |
1133 | ||
1134 | /* All AC97 PCM slots should be sourced from sub-mixer 0. | |
1135 | */ | |
1136 | outl(0, io + SIS_AC97_PSR); | |
1137 | ||
1138 | /* There is only one valid DMA setup for a PCI environment. | |
1139 | */ | |
1140 | outl(SIS_DMA_CSR_PCI_SETTINGS, io + SIS_DMA_CSR); | |
1141 | ||
1142 | /* Reset the syncronization groups for all of the channels | |
1143 | * to be asyncronous. If we start doing SPDIF or 5.1 sound, etc. | |
1144 | * we'll need to change how we handle these. Until then, we just | |
1145 | * assign sub-mixer 0 to all playback channels, and avoid any | |
1146 | * attenuation on the audio. | |
1147 | */ | |
1148 | outl(0, io + SIS_PLAY_SYNC_GROUP_A); | |
1149 | outl(0, io + SIS_PLAY_SYNC_GROUP_B); | |
1150 | outl(0, io + SIS_PLAY_SYNC_GROUP_C); | |
1151 | outl(0, io + SIS_PLAY_SYNC_GROUP_D); | |
1152 | outl(0, io + SIS_MIXER_SYNC_GROUP); | |
1153 | ||
1154 | for (i = 0; i < 64; i++) { | |
1155 | writel(i, SIS_MIXER_START_ADDR(ioaddr, i)); | |
1156 | writel(SIS_MIXER_RIGHT_NO_ATTEN | SIS_MIXER_LEFT_NO_ATTEN | | |
1157 | SIS_MIXER_DEST_0, SIS_MIXER_ADDR(ioaddr, i)); | |
1158 | } | |
1159 | ||
1160 | /* Don't attenuate any audio set for the wave amplifier. | |
1161 | * | |
1162 | * FIXME: Maximum attenuation is set for the music amp, which will | |
1163 | * need to change if we start using the synth engine. | |
1164 | */ | |
1165 | outl(0xffff0000, io + SIS_WEVCR); | |
1166 | ||
1167 | /* Ensure that the wave engine is in normal operating mode. | |
1168 | */ | |
1169 | outl(0, io + SIS_WECCR); | |
1170 | ||
1171 | /* Go ahead and enable the DMA interrupts. They won't go live | |
1172 | * until we start a channel. | |
1173 | */ | |
1174 | outl(SIS_GIER_AUDIO_PLAY_DMA_IRQ_ENABLE | | |
1175 | SIS_GIER_AUDIO_RECORD_DMA_IRQ_ENABLE, io + SIS_GIER); | |
1176 | ||
1177 | return 0; | |
1178 | } | |
1179 | ||
1180 | #ifdef CONFIG_PM | |
1181 | static int sis_suspend(struct pci_dev *pci, pm_message_t state) | |
1182 | { | |
1183 | struct snd_card *card = pci_get_drvdata(pci); | |
1184 | struct sis7019 *sis = card->private_data; | |
1185 | void __iomem *ioaddr = sis->ioaddr; | |
1186 | int i; | |
1187 | ||
1188 | snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); | |
1189 | snd_pcm_suspend_all(sis->pcm); | |
1190 | if (sis->codecs_present & SIS_PRIMARY_CODEC_PRESENT) | |
1191 | snd_ac97_suspend(sis->ac97[0]); | |
1192 | if (sis->codecs_present & SIS_SECONDARY_CODEC_PRESENT) | |
1193 | snd_ac97_suspend(sis->ac97[1]); | |
1194 | if (sis->codecs_present & SIS_TERTIARY_CODEC_PRESENT) | |
1195 | snd_ac97_suspend(sis->ac97[2]); | |
1196 | ||
1197 | /* snd_pcm_suspend_all() stopped all channels, so we're quiescent. | |
1198 | */ | |
1199 | if (sis->irq >= 0) { | |
175859bf DD |
1200 | free_irq(sis->irq, sis); |
1201 | sis->irq = -1; | |
1202 | } | |
1203 | ||
1204 | /* Save the internal state away | |
1205 | */ | |
1206 | for (i = 0; i < 4; i++) { | |
1207 | memcpy_fromio(sis->suspend_state[i], ioaddr, 4096); | |
1208 | ioaddr += 4096; | |
1209 | } | |
1210 | ||
1211 | pci_disable_device(pci); | |
1212 | pci_save_state(pci); | |
1213 | pci_set_power_state(pci, pci_choose_state(pci, state)); | |
1214 | return 0; | |
1215 | } | |
1216 | ||
1217 | static int sis_resume(struct pci_dev *pci) | |
1218 | { | |
1219 | struct snd_card *card = pci_get_drvdata(pci); | |
1220 | struct sis7019 *sis = card->private_data; | |
1221 | void __iomem *ioaddr = sis->ioaddr; | |
1222 | int i; | |
1223 | ||
1224 | pci_set_power_state(pci, PCI_D0); | |
1225 | pci_restore_state(pci); | |
1226 | ||
1227 | if (pci_enable_device(pci) < 0) { | |
1228 | printk(KERN_ERR "sis7019: unable to re-enable device\n"); | |
1229 | goto error; | |
1230 | } | |
1231 | ||
1232 | if (sis_chip_init(sis)) { | |
1233 | printk(KERN_ERR "sis7019: unable to re-init controller\n"); | |
1234 | goto error; | |
1235 | } | |
1236 | ||
1237 | if (request_irq(pci->irq, sis_interrupt, IRQF_DISABLED|IRQF_SHARED, | |
1238 | card->shortname, sis)) { | |
1239 | printk(KERN_ERR "sis7019: unable to regain IRQ %d\n", pci->irq); | |
1240 | goto error; | |
1241 | } | |
1242 | ||
1243 | /* Restore saved state, then clear out the page we use for the | |
1244 | * silence buffer. | |
1245 | */ | |
1246 | for (i = 0; i < 4; i++) { | |
1247 | memcpy_toio(ioaddr, sis->suspend_state[i], 4096); | |
1248 | ioaddr += 4096; | |
1249 | } | |
1250 | ||
1251 | memset(sis->suspend_state[0], 0, 4096); | |
1252 | ||
1253 | sis->irq = pci->irq; | |
1254 | pci_set_master(pci); | |
1255 | ||
1256 | if (sis->codecs_present & SIS_PRIMARY_CODEC_PRESENT) | |
1257 | snd_ac97_resume(sis->ac97[0]); | |
1258 | if (sis->codecs_present & SIS_SECONDARY_CODEC_PRESENT) | |
1259 | snd_ac97_resume(sis->ac97[1]); | |
1260 | if (sis->codecs_present & SIS_TERTIARY_CODEC_PRESENT) | |
1261 | snd_ac97_resume(sis->ac97[2]); | |
1262 | ||
1263 | snd_power_change_state(card, SNDRV_CTL_POWER_D0); | |
1264 | return 0; | |
1265 | ||
1266 | error: | |
1267 | snd_card_disconnect(card); | |
1268 | return -EIO; | |
1269 | } | |
1270 | #endif /* CONFIG_PM */ | |
1271 | ||
1272 | static int sis_alloc_suspend(struct sis7019 *sis) | |
1273 | { | |
1274 | int i; | |
1275 | ||
1276 | /* We need 16K to store the internal wave engine state during a | |
1277 | * suspend, but we don't need it to be contiguous, so play nice | |
1278 | * with the memory system. We'll also use this area for a silence | |
1279 | * buffer. | |
1280 | */ | |
1281 | for (i = 0; i < SIS_SUSPEND_PAGES; i++) { | |
1282 | sis->suspend_state[i] = kmalloc(4096, GFP_KERNEL); | |
1283 | if (!sis->suspend_state[i]) | |
1284 | return -ENOMEM; | |
1285 | } | |
1286 | memset(sis->suspend_state[0], 0, 4096); | |
1287 | ||
1288 | return 0; | |
1289 | } | |
1290 | ||
1291 | static int __devinit sis_chip_create(struct snd_card *card, | |
1292 | struct pci_dev *pci) | |
1293 | { | |
1294 | struct sis7019 *sis = card->private_data; | |
1295 | struct voice *voice; | |
1296 | static struct snd_device_ops ops = { | |
1297 | .dev_free = sis_dev_free, | |
1298 | }; | |
1299 | int rc; | |
1300 | int i; | |
1301 | ||
1302 | rc = pci_enable_device(pci); | |
1303 | if (rc) | |
1304 | goto error_out; | |
1305 | ||
28b76796 | 1306 | if (pci_set_dma_mask(pci, DMA_BIT_MASK(30)) < 0) { |
175859bf DD |
1307 | printk(KERN_ERR "sis7019: architecture does not support " |
1308 | "30-bit PCI busmaster DMA"); | |
1309 | goto error_out_enabled; | |
1310 | } | |
1311 | ||
1312 | memset(sis, 0, sizeof(*sis)); | |
1313 | mutex_init(&sis->ac97_mutex); | |
1314 | spin_lock_init(&sis->voice_lock); | |
1315 | sis->card = card; | |
1316 | sis->pci = pci; | |
1317 | sis->irq = -1; | |
1318 | sis->ioport = pci_resource_start(pci, 0); | |
1319 | ||
1320 | rc = pci_request_regions(pci, "SiS7019"); | |
1321 | if (rc) { | |
1322 | printk(KERN_ERR "sis7019: unable request regions\n"); | |
1323 | goto error_out_enabled; | |
1324 | } | |
1325 | ||
1326 | rc = -EIO; | |
1327 | sis->ioaddr = ioremap_nocache(pci_resource_start(pci, 1), 0x4000); | |
1328 | if (!sis->ioaddr) { | |
1329 | printk(KERN_ERR "sis7019: unable to remap MMIO, aborting\n"); | |
1330 | goto error_out_cleanup; | |
1331 | } | |
1332 | ||
1333 | rc = sis_alloc_suspend(sis); | |
1334 | if (rc < 0) { | |
1335 | printk(KERN_ERR "sis7019: unable to allocate state storage\n"); | |
1336 | goto error_out_cleanup; | |
1337 | } | |
1338 | ||
1339 | rc = sis_chip_init(sis); | |
1340 | if (rc) | |
1341 | goto error_out_cleanup; | |
1342 | ||
1343 | if (request_irq(pci->irq, sis_interrupt, IRQF_DISABLED|IRQF_SHARED, | |
1344 | card->shortname, sis)) { | |
1345 | printk(KERN_ERR "unable to allocate irq %d\n", sis->irq); | |
1346 | goto error_out_cleanup; | |
1347 | } | |
1348 | ||
1349 | sis->irq = pci->irq; | |
1350 | pci_set_master(pci); | |
1351 | ||
1352 | for (i = 0; i < 64; i++) { | |
1353 | voice = &sis->voices[i]; | |
1354 | voice->num = i; | |
1355 | voice->ctrl_base = SIS_PLAY_DMA_ADDR(sis->ioaddr, i); | |
1356 | voice->wave_base = SIS_WAVE_ADDR(sis->ioaddr, i); | |
1357 | } | |
1358 | ||
1359 | voice = &sis->capture_voice; | |
1360 | voice->flags = VOICE_CAPTURE; | |
1361 | voice->num = SIS_CAPTURE_CHAN_AC97_PCM_IN; | |
1362 | voice->ctrl_base = SIS_CAPTURE_DMA_ADDR(sis->ioaddr, voice->num); | |
1363 | ||
1364 | rc = snd_device_new(card, SNDRV_DEV_LOWLEVEL, sis, &ops); | |
1365 | if (rc) | |
1366 | goto error_out_cleanup; | |
1367 | ||
1368 | snd_card_set_dev(card, &pci->dev); | |
1369 | ||
1370 | return 0; | |
1371 | ||
1372 | error_out_cleanup: | |
1373 | sis_chip_free(sis); | |
1374 | ||
1375 | error_out_enabled: | |
1376 | pci_disable_device(pci); | |
1377 | ||
1378 | error_out: | |
1379 | return rc; | |
1380 | } | |
1381 | ||
1382 | static int __devinit snd_sis7019_probe(struct pci_dev *pci, | |
1383 | const struct pci_device_id *pci_id) | |
1384 | { | |
1385 | struct snd_card *card; | |
1386 | struct sis7019 *sis; | |
1387 | int rc; | |
1388 | ||
1389 | rc = -ENOENT; | |
1390 | if (!enable) | |
1391 | goto error_out; | |
1392 | ||
e58de7ba TI |
1393 | rc = snd_card_create(index, id, THIS_MODULE, sizeof(*sis), &card); |
1394 | if (rc < 0) | |
175859bf DD |
1395 | goto error_out; |
1396 | ||
1397 | strcpy(card->driver, "SiS7019"); | |
1398 | strcpy(card->shortname, "SiS7019"); | |
1399 | rc = sis_chip_create(card, pci); | |
1400 | if (rc) | |
1401 | goto card_error_out; | |
1402 | ||
1403 | sis = card->private_data; | |
1404 | ||
1405 | rc = sis_mixer_create(sis); | |
1406 | if (rc) | |
1407 | goto card_error_out; | |
1408 | ||
1409 | rc = sis_pcm_create(sis); | |
1410 | if (rc) | |
1411 | goto card_error_out; | |
1412 | ||
1413 | snprintf(card->longname, sizeof(card->longname), | |
1414 | "%s Audio Accelerator with %s at 0x%lx, irq %d", | |
1415 | card->shortname, snd_ac97_get_short_name(sis->ac97[0]), | |
1416 | sis->ioport, sis->irq); | |
1417 | ||
1418 | rc = snd_card_register(card); | |
1419 | if (rc) | |
1420 | goto card_error_out; | |
1421 | ||
1422 | pci_set_drvdata(pci, card); | |
1423 | return 0; | |
1424 | ||
1425 | card_error_out: | |
1426 | snd_card_free(card); | |
1427 | ||
1428 | error_out: | |
1429 | return rc; | |
1430 | } | |
1431 | ||
1432 | static void __devexit snd_sis7019_remove(struct pci_dev *pci) | |
1433 | { | |
1434 | snd_card_free(pci_get_drvdata(pci)); | |
1435 | pci_set_drvdata(pci, NULL); | |
1436 | } | |
1437 | ||
1438 | static struct pci_driver sis7019_driver = { | |
1439 | .name = "SiS7019", | |
1440 | .id_table = snd_sis7019_ids, | |
1441 | .probe = snd_sis7019_probe, | |
1442 | .remove = __devexit_p(snd_sis7019_remove), | |
1443 | ||
1444 | #ifdef CONFIG_PM | |
1445 | .suspend = sis_suspend, | |
1446 | .resume = sis_resume, | |
1447 | #endif | |
1448 | }; | |
1449 | ||
1450 | static int __init sis7019_init(void) | |
1451 | { | |
1452 | return pci_register_driver(&sis7019_driver); | |
1453 | } | |
1454 | ||
1455 | static void __exit sis7019_exit(void) | |
1456 | { | |
1457 | pci_unregister_driver(&sis7019_driver); | |
1458 | } | |
1459 | ||
1460 | module_init(sis7019_init); | |
1461 | module_exit(sis7019_exit); |