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7614a55e | 1 | // SPDX-License-Identifier: GPL-2.0-only |
175859bf DD |
2 | /* |
3 | * Driver for SiS7019 Audio Accelerator | |
4 | * | |
5 | * Copyright (C) 2004-2007, David Dillow | |
6 | * Written by David Dillow <dave@thedillows.org> | |
7 | * Inspired by the Trident 4D-WaveDX/NX driver. | |
8 | * | |
9 | * All rights reserved. | |
175859bf DD |
10 | */ |
11 | ||
175859bf DD |
12 | #include <linux/init.h> |
13 | #include <linux/pci.h> | |
14 | #include <linux/time.h> | |
5a0e3ad6 | 15 | #include <linux/slab.h> |
65a77217 | 16 | #include <linux/module.h> |
175859bf DD |
17 | #include <linux/interrupt.h> |
18 | #include <linux/delay.h> | |
19 | #include <sound/core.h> | |
20 | #include <sound/ac97_codec.h> | |
21 | #include <sound/initval.h> | |
22 | #include "sis7019.h" | |
23 | ||
24 | MODULE_AUTHOR("David Dillow <dave@thedillows.org>"); | |
25 | MODULE_DESCRIPTION("SiS7019"); | |
26 | MODULE_LICENSE("GPL"); | |
27 | MODULE_SUPPORTED_DEVICE("{{SiS,SiS7019 Audio Accelerator}}"); | |
28 | ||
29 | static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */ | |
30 | static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */ | |
a67ff6a5 | 31 | static bool enable = 1; |
fc084e0b | 32 | static int codecs = 1; |
175859bf DD |
33 | |
34 | module_param(index, int, 0444); | |
35 | MODULE_PARM_DESC(index, "Index value for SiS7019 Audio Accelerator."); | |
36 | module_param(id, charp, 0444); | |
37 | MODULE_PARM_DESC(id, "ID string for SiS7019 Audio Accelerator."); | |
38 | module_param(enable, bool, 0444); | |
39 | MODULE_PARM_DESC(enable, "Enable SiS7019 Audio Accelerator."); | |
fc084e0b DD |
40 | module_param(codecs, int, 0444); |
41 | MODULE_PARM_DESC(codecs, "Set bit to indicate that codec number is expected to be present (default 1)"); | |
175859bf | 42 | |
9baa3c34 | 43 | static const struct pci_device_id snd_sis7019_ids[] = { |
175859bf DD |
44 | { PCI_DEVICE(PCI_VENDOR_ID_SI, 0x7019) }, |
45 | { 0, } | |
46 | }; | |
47 | ||
48 | MODULE_DEVICE_TABLE(pci, snd_sis7019_ids); | |
49 | ||
50 | /* There are three timing modes for the voices. | |
51 | * | |
52 | * For both playback and capture, when the buffer is one or two periods long, | |
53 | * we use the hardware's built-in Mid-Loop Interrupt and End-Loop Interrupt | |
54 | * to let us know when the periods have ended. | |
55 | * | |
56 | * When performing playback with more than two periods per buffer, we set | |
57 | * the "Stop Sample Offset" and tell the hardware to interrupt us when we | |
58 | * reach it. We then update the offset and continue on until we are | |
59 | * interrupted for the next period. | |
60 | * | |
61 | * Capture channels do not have a SSO, so we allocate a playback channel to | |
62 | * use as a timer for the capture periods. We use the SSO on the playback | |
63 | * channel to clock out virtual periods, and adjust the virtual period length | |
64 | * to maintain synchronization. This algorithm came from the Trident driver. | |
65 | * | |
66 | * FIXME: It'd be nice to make use of some of the synth features in the | |
67 | * hardware, but a woeful lack of documentation is a significant roadblock. | |
68 | */ | |
69 | struct voice { | |
70 | u16 flags; | |
71 | #define VOICE_IN_USE 1 | |
72 | #define VOICE_CAPTURE 2 | |
73 | #define VOICE_SSO_TIMING 4 | |
74 | #define VOICE_SYNC_TIMING 8 | |
75 | u16 sync_cso; | |
76 | u16 period_size; | |
77 | u16 buffer_size; | |
78 | u16 sync_period_size; | |
79 | u16 sync_buffer_size; | |
80 | u32 sso; | |
81 | u32 vperiod; | |
82 | struct snd_pcm_substream *substream; | |
83 | struct voice *timing; | |
84 | void __iomem *ctrl_base; | |
85 | void __iomem *wave_base; | |
86 | void __iomem *sync_base; | |
87 | int num; | |
88 | }; | |
89 | ||
90 | /* We need four pages to store our wave parameters during a suspend. If | |
91 | * we're not doing power management, we still need to allocate a page | |
92 | * for the silence buffer. | |
93 | */ | |
c7561cd8 | 94 | #ifdef CONFIG_PM_SLEEP |
175859bf DD |
95 | #define SIS_SUSPEND_PAGES 4 |
96 | #else | |
97 | #define SIS_SUSPEND_PAGES 1 | |
98 | #endif | |
99 | ||
100 | struct sis7019 { | |
101 | unsigned long ioport; | |
102 | void __iomem *ioaddr; | |
103 | int irq; | |
104 | int codecs_present; | |
105 | ||
106 | struct pci_dev *pci; | |
107 | struct snd_pcm *pcm; | |
108 | struct snd_card *card; | |
109 | struct snd_ac97 *ac97[3]; | |
110 | ||
111 | /* Protect against more than one thread hitting the AC97 | |
112 | * registers (in a more polite manner than pounding the hardware | |
113 | * semaphore) | |
114 | */ | |
115 | struct mutex ac97_mutex; | |
116 | ||
117 | /* voice_lock protects allocation/freeing of the voice descriptions | |
118 | */ | |
119 | spinlock_t voice_lock; | |
120 | ||
121 | struct voice voices[64]; | |
122 | struct voice capture_voice; | |
123 | ||
124 | /* Allocate pages to store the internal wave state during | |
125 | * suspends. When we're operating, this can be used as a silence | |
126 | * buffer for a timing channel. | |
127 | */ | |
128 | void *suspend_state[SIS_SUSPEND_PAGES]; | |
129 | ||
130 | int silence_users; | |
131 | dma_addr_t silence_dma_addr; | |
132 | }; | |
133 | ||
fc084e0b DD |
134 | /* These values are also used by the module param 'codecs' to indicate |
135 | * which codecs should be present. | |
136 | */ | |
175859bf DD |
137 | #define SIS_PRIMARY_CODEC_PRESENT 0x0001 |
138 | #define SIS_SECONDARY_CODEC_PRESENT 0x0002 | |
139 | #define SIS_TERTIARY_CODEC_PRESENT 0x0004 | |
140 | ||
141 | /* The HW offset parameters (Loop End, Stop Sample, End Sample) have a | |
142 | * documented range of 8-0xfff8 samples. Given that they are 0-based, | |
143 | * that places our period/buffer range at 9-0xfff9 samples. That makes the | |
144 | * max buffer size 0xfff9 samples * 2 channels * 2 bytes per sample, and | |
145 | * max samples / min samples gives us the max periods in a buffer. | |
146 | * | |
147 | * We'll add a constraint upon open that limits the period and buffer sample | |
148 | * size to values that are legal for the hardware. | |
149 | */ | |
dee49895 | 150 | static const struct snd_pcm_hardware sis_playback_hw_info = { |
175859bf DD |
151 | .info = (SNDRV_PCM_INFO_MMAP | |
152 | SNDRV_PCM_INFO_MMAP_VALID | | |
153 | SNDRV_PCM_INFO_INTERLEAVED | | |
154 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
155 | SNDRV_PCM_INFO_SYNC_START | | |
156 | SNDRV_PCM_INFO_RESUME), | |
157 | .formats = (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | | |
158 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE), | |
159 | .rates = SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_CONTINUOUS, | |
160 | .rate_min = 4000, | |
161 | .rate_max = 48000, | |
162 | .channels_min = 1, | |
163 | .channels_max = 2, | |
164 | .buffer_bytes_max = (0xfff9 * 4), | |
165 | .period_bytes_min = 9, | |
166 | .period_bytes_max = (0xfff9 * 4), | |
167 | .periods_min = 1, | |
168 | .periods_max = (0xfff9 / 9), | |
169 | }; | |
170 | ||
dee49895 | 171 | static const struct snd_pcm_hardware sis_capture_hw_info = { |
175859bf DD |
172 | .info = (SNDRV_PCM_INFO_MMAP | |
173 | SNDRV_PCM_INFO_MMAP_VALID | | |
174 | SNDRV_PCM_INFO_INTERLEAVED | | |
175 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
176 | SNDRV_PCM_INFO_SYNC_START | | |
177 | SNDRV_PCM_INFO_RESUME), | |
178 | .formats = (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | | |
179 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE), | |
180 | .rates = SNDRV_PCM_RATE_48000, | |
181 | .rate_min = 4000, | |
182 | .rate_max = 48000, | |
183 | .channels_min = 1, | |
184 | .channels_max = 2, | |
185 | .buffer_bytes_max = (0xfff9 * 4), | |
186 | .period_bytes_min = 9, | |
187 | .period_bytes_max = (0xfff9 * 4), | |
188 | .periods_min = 1, | |
189 | .periods_max = (0xfff9 / 9), | |
190 | }; | |
191 | ||
192 | static void sis_update_sso(struct voice *voice, u16 period) | |
193 | { | |
194 | void __iomem *base = voice->ctrl_base; | |
195 | ||
196 | voice->sso += period; | |
197 | if (voice->sso >= voice->buffer_size) | |
198 | voice->sso -= voice->buffer_size; | |
199 | ||
200 | /* Enforce the documented hardware minimum offset */ | |
201 | if (voice->sso < 8) | |
202 | voice->sso = 8; | |
203 | ||
204 | /* The SSO is in the upper 16 bits of the register. */ | |
205 | writew(voice->sso & 0xffff, base + SIS_PLAY_DMA_SSO_ESO + 2); | |
206 | } | |
207 | ||
208 | static void sis_update_voice(struct voice *voice) | |
209 | { | |
210 | if (voice->flags & VOICE_SSO_TIMING) { | |
211 | sis_update_sso(voice, voice->period_size); | |
212 | } else if (voice->flags & VOICE_SYNC_TIMING) { | |
213 | int sync; | |
214 | ||
215 | /* If we've not hit the end of the virtual period, update | |
216 | * our records and keep going. | |
217 | */ | |
218 | if (voice->vperiod > voice->period_size) { | |
219 | voice->vperiod -= voice->period_size; | |
220 | if (voice->vperiod < voice->period_size) | |
221 | sis_update_sso(voice, voice->vperiod); | |
222 | else | |
223 | sis_update_sso(voice, voice->period_size); | |
224 | return; | |
225 | } | |
226 | ||
227 | /* Calculate our relative offset between the target and | |
228 | * the actual CSO value. Since we're operating in a loop, | |
229 | * if the value is more than half way around, we can | |
230 | * consider ourselves wrapped. | |
231 | */ | |
232 | sync = voice->sync_cso; | |
233 | sync -= readw(voice->sync_base + SIS_CAPTURE_DMA_FORMAT_CSO); | |
234 | if (sync > (voice->sync_buffer_size / 2)) | |
235 | sync -= voice->sync_buffer_size; | |
236 | ||
237 | /* If sync is positive, then we interrupted too early, and | |
238 | * we'll need to come back in a few samples and try again. | |
239 | * There's a minimum wait, as it takes some time for the DMA | |
240 | * engine to startup, etc... | |
241 | */ | |
242 | if (sync > 0) { | |
243 | if (sync < 16) | |
244 | sync = 16; | |
245 | sis_update_sso(voice, sync); | |
246 | return; | |
247 | } | |
248 | ||
249 | /* Ok, we interrupted right on time, or (hopefully) just | |
250 | * a bit late. We'll adjst our next waiting period based | |
251 | * on how close we got. | |
252 | * | |
253 | * We need to stay just behind the actual channel to ensure | |
254 | * it really is past a period when we get our interrupt -- | |
255 | * otherwise we'll fall into the early code above and have | |
256 | * a minimum wait time, which makes us quite late here, | |
257 | * eating into the user's time to refresh the buffer, esp. | |
258 | * if using small periods. | |
259 | * | |
260 | * If we're less than 9 samples behind, we're on target. | |
3a3d5fd1 DD |
261 | * Otherwise, shorten the next vperiod by the amount we've |
262 | * been delayed. | |
175859bf DD |
263 | */ |
264 | if (sync > -9) | |
265 | voice->vperiod = voice->sync_period_size + 1; | |
266 | else | |
3a3d5fd1 | 267 | voice->vperiod = voice->sync_period_size + sync + 10; |
175859bf DD |
268 | |
269 | if (voice->vperiod < voice->buffer_size) { | |
270 | sis_update_sso(voice, voice->vperiod); | |
271 | voice->vperiod = 0; | |
272 | } else | |
273 | sis_update_sso(voice, voice->period_size); | |
274 | ||
275 | sync = voice->sync_cso + voice->sync_period_size; | |
276 | if (sync >= voice->sync_buffer_size) | |
277 | sync -= voice->sync_buffer_size; | |
278 | voice->sync_cso = sync; | |
279 | } | |
280 | ||
281 | snd_pcm_period_elapsed(voice->substream); | |
282 | } | |
283 | ||
284 | static void sis_voice_irq(u32 status, struct voice *voice) | |
285 | { | |
286 | int bit; | |
287 | ||
288 | while (status) { | |
289 | bit = __ffs(status); | |
290 | status >>= bit + 1; | |
291 | voice += bit; | |
292 | sis_update_voice(voice); | |
293 | voice++; | |
294 | } | |
295 | } | |
296 | ||
297 | static irqreturn_t sis_interrupt(int irq, void *dev) | |
298 | { | |
299 | struct sis7019 *sis = dev; | |
300 | unsigned long io = sis->ioport; | |
301 | struct voice *voice; | |
302 | u32 intr, status; | |
303 | ||
304 | /* We only use the DMA interrupts, and we don't enable any other | |
25985edc | 305 | * source of interrupts. But, it is possible to see an interrupt |
175859bf DD |
306 | * status that didn't actually interrupt us, so eliminate anything |
307 | * we're not expecting to avoid falsely claiming an IRQ, and an | |
308 | * ensuing endless loop. | |
309 | */ | |
310 | intr = inl(io + SIS_GISR); | |
311 | intr &= SIS_GISR_AUDIO_PLAY_DMA_IRQ_STATUS | | |
312 | SIS_GISR_AUDIO_RECORD_DMA_IRQ_STATUS; | |
313 | if (!intr) | |
314 | return IRQ_NONE; | |
315 | ||
316 | do { | |
317 | status = inl(io + SIS_PISR_A); | |
318 | if (status) { | |
319 | sis_voice_irq(status, sis->voices); | |
320 | outl(status, io + SIS_PISR_A); | |
321 | } | |
322 | ||
323 | status = inl(io + SIS_PISR_B); | |
324 | if (status) { | |
325 | sis_voice_irq(status, &sis->voices[32]); | |
326 | outl(status, io + SIS_PISR_B); | |
327 | } | |
328 | ||
329 | status = inl(io + SIS_RISR); | |
330 | if (status) { | |
331 | voice = &sis->capture_voice; | |
332 | if (!voice->timing) | |
333 | snd_pcm_period_elapsed(voice->substream); | |
334 | ||
335 | outl(status, io + SIS_RISR); | |
336 | } | |
337 | ||
338 | outl(intr, io + SIS_GISR); | |
339 | intr = inl(io + SIS_GISR); | |
340 | intr &= SIS_GISR_AUDIO_PLAY_DMA_IRQ_STATUS | | |
341 | SIS_GISR_AUDIO_RECORD_DMA_IRQ_STATUS; | |
342 | } while (intr); | |
343 | ||
344 | return IRQ_HANDLED; | |
345 | } | |
346 | ||
347 | static u32 sis_rate_to_delta(unsigned int rate) | |
348 | { | |
349 | u32 delta; | |
350 | ||
351 | /* This was copied from the trident driver, but it seems its gotten | |
352 | * around a bit... nevertheless, it works well. | |
353 | * | |
354 | * We special case 44100 and 8000 since rounding with the equation | |
355 | * does not give us an accurate enough value. For 11025 and 22050 | |
356 | * the equation gives us the best answer. All other frequencies will | |
357 | * also use the equation. JDW | |
358 | */ | |
359 | if (rate == 44100) | |
360 | delta = 0xeb3; | |
361 | else if (rate == 8000) | |
362 | delta = 0x2ab; | |
363 | else if (rate == 48000) | |
364 | delta = 0x1000; | |
365 | else | |
366 | delta = (((rate << 12) + 24000) / 48000) & 0x0000ffff; | |
367 | return delta; | |
368 | } | |
369 | ||
370 | static void __sis_map_silence(struct sis7019 *sis) | |
371 | { | |
372 | /* Helper function: must hold sis->voice_lock on entry */ | |
373 | if (!sis->silence_users) | |
412b979c | 374 | sis->silence_dma_addr = dma_map_single(&sis->pci->dev, |
175859bf | 375 | sis->suspend_state[0], |
412b979c | 376 | 4096, DMA_TO_DEVICE); |
175859bf DD |
377 | sis->silence_users++; |
378 | } | |
379 | ||
380 | static void __sis_unmap_silence(struct sis7019 *sis) | |
381 | { | |
382 | /* Helper function: must hold sis->voice_lock on entry */ | |
383 | sis->silence_users--; | |
384 | if (!sis->silence_users) | |
412b979c QL |
385 | dma_unmap_single(&sis->pci->dev, sis->silence_dma_addr, 4096, |
386 | DMA_TO_DEVICE); | |
175859bf DD |
387 | } |
388 | ||
389 | static void sis_free_voice(struct sis7019 *sis, struct voice *voice) | |
390 | { | |
391 | unsigned long flags; | |
392 | ||
393 | spin_lock_irqsave(&sis->voice_lock, flags); | |
394 | if (voice->timing) { | |
395 | __sis_unmap_silence(sis); | |
396 | voice->timing->flags &= ~(VOICE_IN_USE | VOICE_SSO_TIMING | | |
397 | VOICE_SYNC_TIMING); | |
398 | voice->timing = NULL; | |
399 | } | |
400 | voice->flags &= ~(VOICE_IN_USE | VOICE_SSO_TIMING | VOICE_SYNC_TIMING); | |
401 | spin_unlock_irqrestore(&sis->voice_lock, flags); | |
402 | } | |
403 | ||
404 | static struct voice *__sis_alloc_playback_voice(struct sis7019 *sis) | |
405 | { | |
406 | /* Must hold the voice_lock on entry */ | |
407 | struct voice *voice; | |
408 | int i; | |
409 | ||
410 | for (i = 0; i < 64; i++) { | |
411 | voice = &sis->voices[i]; | |
412 | if (voice->flags & VOICE_IN_USE) | |
413 | continue; | |
414 | voice->flags |= VOICE_IN_USE; | |
415 | goto found_one; | |
416 | } | |
417 | voice = NULL; | |
418 | ||
419 | found_one: | |
420 | return voice; | |
421 | } | |
422 | ||
423 | static struct voice *sis_alloc_playback_voice(struct sis7019 *sis) | |
424 | { | |
425 | struct voice *voice; | |
426 | unsigned long flags; | |
427 | ||
428 | spin_lock_irqsave(&sis->voice_lock, flags); | |
429 | voice = __sis_alloc_playback_voice(sis); | |
430 | spin_unlock_irqrestore(&sis->voice_lock, flags); | |
431 | ||
432 | return voice; | |
433 | } | |
434 | ||
435 | static int sis_alloc_timing_voice(struct snd_pcm_substream *substream, | |
436 | struct snd_pcm_hw_params *hw_params) | |
437 | { | |
438 | struct sis7019 *sis = snd_pcm_substream_chip(substream); | |
439 | struct snd_pcm_runtime *runtime = substream->runtime; | |
440 | struct voice *voice = runtime->private_data; | |
441 | unsigned int period_size, buffer_size; | |
442 | unsigned long flags; | |
443 | int needed; | |
444 | ||
445 | /* If there are one or two periods per buffer, we don't need a | |
446 | * timing voice, as we can use the capture channel's interrupts | |
447 | * to clock out the periods. | |
448 | */ | |
449 | period_size = params_period_size(hw_params); | |
450 | buffer_size = params_buffer_size(hw_params); | |
451 | needed = (period_size != buffer_size && | |
452 | period_size != (buffer_size / 2)); | |
453 | ||
454 | if (needed && !voice->timing) { | |
455 | spin_lock_irqsave(&sis->voice_lock, flags); | |
456 | voice->timing = __sis_alloc_playback_voice(sis); | |
457 | if (voice->timing) | |
458 | __sis_map_silence(sis); | |
459 | spin_unlock_irqrestore(&sis->voice_lock, flags); | |
460 | if (!voice->timing) | |
461 | return -ENOMEM; | |
462 | voice->timing->substream = substream; | |
463 | } else if (!needed && voice->timing) { | |
464 | sis_free_voice(sis, voice); | |
465 | voice->timing = NULL; | |
466 | } | |
467 | ||
468 | return 0; | |
469 | } | |
470 | ||
471 | static int sis_playback_open(struct snd_pcm_substream *substream) | |
472 | { | |
473 | struct sis7019 *sis = snd_pcm_substream_chip(substream); | |
474 | struct snd_pcm_runtime *runtime = substream->runtime; | |
475 | struct voice *voice; | |
476 | ||
477 | voice = sis_alloc_playback_voice(sis); | |
478 | if (!voice) | |
479 | return -EAGAIN; | |
480 | ||
481 | voice->substream = substream; | |
482 | runtime->private_data = voice; | |
483 | runtime->hw = sis_playback_hw_info; | |
484 | snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, | |
485 | 9, 0xfff9); | |
486 | snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, | |
487 | 9, 0xfff9); | |
488 | snd_pcm_set_sync(substream); | |
489 | return 0; | |
490 | } | |
491 | ||
492 | static int sis_substream_close(struct snd_pcm_substream *substream) | |
493 | { | |
494 | struct sis7019 *sis = snd_pcm_substream_chip(substream); | |
495 | struct snd_pcm_runtime *runtime = substream->runtime; | |
496 | struct voice *voice = runtime->private_data; | |
497 | ||
498 | sis_free_voice(sis, voice); | |
499 | return 0; | |
500 | } | |
501 | ||
502 | static int sis_playback_hw_params(struct snd_pcm_substream *substream, | |
503 | struct snd_pcm_hw_params *hw_params) | |
504 | { | |
505 | return snd_pcm_lib_malloc_pages(substream, | |
506 | params_buffer_bytes(hw_params)); | |
507 | } | |
508 | ||
509 | static int sis_hw_free(struct snd_pcm_substream *substream) | |
510 | { | |
511 | return snd_pcm_lib_free_pages(substream); | |
512 | } | |
513 | ||
514 | static int sis_pcm_playback_prepare(struct snd_pcm_substream *substream) | |
515 | { | |
516 | struct snd_pcm_runtime *runtime = substream->runtime; | |
517 | struct voice *voice = runtime->private_data; | |
518 | void __iomem *ctrl_base = voice->ctrl_base; | |
519 | void __iomem *wave_base = voice->wave_base; | |
520 | u32 format, dma_addr, control, sso_eso, delta, reg; | |
521 | u16 leo; | |
522 | ||
523 | /* We rely on the PCM core to ensure that the parameters for this | |
524 | * substream do not change on us while we're programming the HW. | |
525 | */ | |
526 | format = 0; | |
527 | if (snd_pcm_format_width(runtime->format) == 8) | |
528 | format |= SIS_PLAY_DMA_FORMAT_8BIT; | |
529 | if (!snd_pcm_format_signed(runtime->format)) | |
530 | format |= SIS_PLAY_DMA_FORMAT_UNSIGNED; | |
531 | if (runtime->channels == 1) | |
532 | format |= SIS_PLAY_DMA_FORMAT_MONO; | |
533 | ||
534 | /* The baseline setup is for a single period per buffer, and | |
535 | * we add bells and whistles as needed from there. | |
536 | */ | |
537 | dma_addr = runtime->dma_addr; | |
538 | leo = runtime->buffer_size - 1; | |
539 | control = leo | SIS_PLAY_DMA_LOOP | SIS_PLAY_DMA_INTR_AT_LEO; | |
540 | sso_eso = leo; | |
541 | ||
542 | if (runtime->period_size == (runtime->buffer_size / 2)) { | |
543 | control |= SIS_PLAY_DMA_INTR_AT_MLP; | |
544 | } else if (runtime->period_size != runtime->buffer_size) { | |
545 | voice->flags |= VOICE_SSO_TIMING; | |
546 | voice->sso = runtime->period_size - 1; | |
547 | voice->period_size = runtime->period_size; | |
548 | voice->buffer_size = runtime->buffer_size; | |
549 | ||
550 | control &= ~SIS_PLAY_DMA_INTR_AT_LEO; | |
551 | control |= SIS_PLAY_DMA_INTR_AT_SSO; | |
552 | sso_eso |= (runtime->period_size - 1) << 16; | |
553 | } | |
554 | ||
555 | delta = sis_rate_to_delta(runtime->rate); | |
556 | ||
557 | /* Ok, we're ready to go, set up the channel. | |
558 | */ | |
559 | writel(format, ctrl_base + SIS_PLAY_DMA_FORMAT_CSO); | |
560 | writel(dma_addr, ctrl_base + SIS_PLAY_DMA_BASE); | |
561 | writel(control, ctrl_base + SIS_PLAY_DMA_CONTROL); | |
562 | writel(sso_eso, ctrl_base + SIS_PLAY_DMA_SSO_ESO); | |
563 | ||
564 | for (reg = 0; reg < SIS_WAVE_SIZE; reg += 4) | |
565 | writel(0, wave_base + reg); | |
566 | ||
567 | writel(SIS_WAVE_GENERAL_WAVE_VOLUME, wave_base + SIS_WAVE_GENERAL); | |
568 | writel(delta << 16, wave_base + SIS_WAVE_GENERAL_ARTICULATION); | |
569 | writel(SIS_WAVE_CHANNEL_CONTROL_FIRST_SAMPLE | | |
570 | SIS_WAVE_CHANNEL_CONTROL_AMP_ENABLE | | |
571 | SIS_WAVE_CHANNEL_CONTROL_INTERPOLATE_ENABLE, | |
572 | wave_base + SIS_WAVE_CHANNEL_CONTROL); | |
573 | ||
574 | /* Force PCI writes to post. */ | |
575 | readl(ctrl_base); | |
576 | ||
577 | return 0; | |
578 | } | |
579 | ||
580 | static int sis_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
581 | { | |
582 | struct sis7019 *sis = snd_pcm_substream_chip(substream); | |
583 | unsigned long io = sis->ioport; | |
584 | struct snd_pcm_substream *s; | |
585 | struct voice *voice; | |
586 | void *chip; | |
587 | int starting; | |
588 | u32 record = 0; | |
589 | u32 play[2] = { 0, 0 }; | |
590 | ||
591 | /* No locks needed, as the PCM core will hold the locks on the | |
592 | * substreams, and the HW will only start/stop the indicated voices | |
593 | * without changing the state of the others. | |
594 | */ | |
595 | switch (cmd) { | |
596 | case SNDRV_PCM_TRIGGER_START: | |
597 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
598 | case SNDRV_PCM_TRIGGER_RESUME: | |
599 | starting = 1; | |
600 | break; | |
601 | case SNDRV_PCM_TRIGGER_STOP: | |
602 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
603 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
604 | starting = 0; | |
605 | break; | |
606 | default: | |
607 | return -EINVAL; | |
608 | } | |
609 | ||
610 | snd_pcm_group_for_each_entry(s, substream) { | |
611 | /* Make sure it is for us... */ | |
612 | chip = snd_pcm_substream_chip(s); | |
613 | if (chip != sis) | |
614 | continue; | |
615 | ||
616 | voice = s->runtime->private_data; | |
617 | if (voice->flags & VOICE_CAPTURE) { | |
618 | record |= 1 << voice->num; | |
619 | voice = voice->timing; | |
620 | } | |
621 | ||
622 | /* voice could be NULL if this a recording stream, and it | |
623 | * doesn't have an external timing channel. | |
624 | */ | |
625 | if (voice) | |
626 | play[voice->num / 32] |= 1 << (voice->num & 0x1f); | |
627 | ||
628 | snd_pcm_trigger_done(s, substream); | |
629 | } | |
630 | ||
631 | if (starting) { | |
632 | if (record) | |
633 | outl(record, io + SIS_RECORD_START_REG); | |
634 | if (play[0]) | |
635 | outl(play[0], io + SIS_PLAY_START_A_REG); | |
636 | if (play[1]) | |
637 | outl(play[1], io + SIS_PLAY_START_B_REG); | |
638 | } else { | |
639 | if (record) | |
640 | outl(record, io + SIS_RECORD_STOP_REG); | |
641 | if (play[0]) | |
642 | outl(play[0], io + SIS_PLAY_STOP_A_REG); | |
643 | if (play[1]) | |
644 | outl(play[1], io + SIS_PLAY_STOP_B_REG); | |
645 | } | |
646 | return 0; | |
647 | } | |
648 | ||
649 | static snd_pcm_uframes_t sis_pcm_pointer(struct snd_pcm_substream *substream) | |
650 | { | |
651 | struct snd_pcm_runtime *runtime = substream->runtime; | |
652 | struct voice *voice = runtime->private_data; | |
653 | u32 cso; | |
654 | ||
655 | cso = readl(voice->ctrl_base + SIS_PLAY_DMA_FORMAT_CSO); | |
656 | cso &= 0xffff; | |
657 | return cso; | |
658 | } | |
659 | ||
660 | static int sis_capture_open(struct snd_pcm_substream *substream) | |
661 | { | |
662 | struct sis7019 *sis = snd_pcm_substream_chip(substream); | |
663 | struct snd_pcm_runtime *runtime = substream->runtime; | |
664 | struct voice *voice = &sis->capture_voice; | |
665 | unsigned long flags; | |
666 | ||
667 | /* FIXME: The driver only supports recording from one channel | |
668 | * at the moment, but it could support more. | |
669 | */ | |
670 | spin_lock_irqsave(&sis->voice_lock, flags); | |
671 | if (voice->flags & VOICE_IN_USE) | |
672 | voice = NULL; | |
673 | else | |
674 | voice->flags |= VOICE_IN_USE; | |
675 | spin_unlock_irqrestore(&sis->voice_lock, flags); | |
676 | ||
677 | if (!voice) | |
678 | return -EAGAIN; | |
679 | ||
680 | voice->substream = substream; | |
681 | runtime->private_data = voice; | |
682 | runtime->hw = sis_capture_hw_info; | |
683 | runtime->hw.rates = sis->ac97[0]->rates[AC97_RATES_ADC]; | |
684 | snd_pcm_limit_hw_rates(runtime); | |
685 | snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, | |
686 | 9, 0xfff9); | |
687 | snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, | |
688 | 9, 0xfff9); | |
689 | snd_pcm_set_sync(substream); | |
690 | return 0; | |
691 | } | |
692 | ||
693 | static int sis_capture_hw_params(struct snd_pcm_substream *substream, | |
694 | struct snd_pcm_hw_params *hw_params) | |
695 | { | |
696 | struct sis7019 *sis = snd_pcm_substream_chip(substream); | |
697 | int rc; | |
698 | ||
699 | rc = snd_ac97_set_rate(sis->ac97[0], AC97_PCM_LR_ADC_RATE, | |
700 | params_rate(hw_params)); | |
701 | if (rc) | |
702 | goto out; | |
703 | ||
704 | rc = snd_pcm_lib_malloc_pages(substream, | |
705 | params_buffer_bytes(hw_params)); | |
706 | if (rc < 0) | |
707 | goto out; | |
708 | ||
709 | rc = sis_alloc_timing_voice(substream, hw_params); | |
710 | ||
711 | out: | |
712 | return rc; | |
713 | } | |
714 | ||
715 | static void sis_prepare_timing_voice(struct voice *voice, | |
716 | struct snd_pcm_substream *substream) | |
717 | { | |
718 | struct sis7019 *sis = snd_pcm_substream_chip(substream); | |
719 | struct snd_pcm_runtime *runtime = substream->runtime; | |
720 | struct voice *timing = voice->timing; | |
721 | void __iomem *play_base = timing->ctrl_base; | |
722 | void __iomem *wave_base = timing->wave_base; | |
723 | u16 buffer_size, period_size; | |
724 | u32 format, control, sso_eso, delta; | |
725 | u32 vperiod, sso, reg; | |
726 | ||
727 | /* Set our initial buffer and period as large as we can given a | |
728 | * single page of silence. | |
729 | */ | |
730 | buffer_size = 4096 / runtime->channels; | |
731 | buffer_size /= snd_pcm_format_size(runtime->format, 1); | |
732 | period_size = buffer_size; | |
733 | ||
734 | /* Initially, we want to interrupt just a bit behind the end of | |
3a3d5fd1 | 735 | * the period we're clocking out. 12 samples seems to give a good |
175859bf DD |
736 | * delay. |
737 | * | |
738 | * We want to spread our interrupts throughout the virtual period, | |
739 | * so that we don't end up with two interrupts back to back at the | |
740 | * end -- this helps minimize the effects of any jitter. Adjust our | |
741 | * clocking period size so that the last period is at least a fourth | |
742 | * of a full period. | |
743 | * | |
744 | * This is all moot if we don't need to use virtual periods. | |
745 | */ | |
3a3d5fd1 | 746 | vperiod = runtime->period_size + 12; |
175859bf DD |
747 | if (vperiod > period_size) { |
748 | u16 tail = vperiod % period_size; | |
749 | u16 quarter_period = period_size / 4; | |
750 | ||
751 | if (tail && tail < quarter_period) { | |
752 | u16 loops = vperiod / period_size; | |
753 | ||
754 | tail = quarter_period - tail; | |
755 | tail += loops - 1; | |
756 | tail /= loops; | |
757 | period_size -= tail; | |
758 | } | |
759 | ||
760 | sso = period_size - 1; | |
761 | } else { | |
762 | /* The initial period will fit inside the buffer, so we | |
763 | * don't need to use virtual periods -- disable them. | |
764 | */ | |
765 | period_size = runtime->period_size; | |
766 | sso = vperiod - 1; | |
767 | vperiod = 0; | |
768 | } | |
769 | ||
25985edc | 770 | /* The interrupt handler implements the timing synchronization, so |
175859bf DD |
771 | * setup its state. |
772 | */ | |
773 | timing->flags |= VOICE_SYNC_TIMING; | |
774 | timing->sync_base = voice->ctrl_base; | |
3a3d5fd1 | 775 | timing->sync_cso = runtime->period_size; |
175859bf DD |
776 | timing->sync_period_size = runtime->period_size; |
777 | timing->sync_buffer_size = runtime->buffer_size; | |
778 | timing->period_size = period_size; | |
779 | timing->buffer_size = buffer_size; | |
780 | timing->sso = sso; | |
781 | timing->vperiod = vperiod; | |
782 | ||
783 | /* Using unsigned samples with the all-zero silence buffer | |
784 | * forces the output to the lower rail, killing playback. | |
785 | * So ignore unsigned vs signed -- it doesn't change the timing. | |
786 | */ | |
787 | format = 0; | |
788 | if (snd_pcm_format_width(runtime->format) == 8) | |
789 | format = SIS_CAPTURE_DMA_FORMAT_8BIT; | |
790 | if (runtime->channels == 1) | |
791 | format |= SIS_CAPTURE_DMA_FORMAT_MONO; | |
792 | ||
793 | control = timing->buffer_size - 1; | |
794 | control |= SIS_PLAY_DMA_LOOP | SIS_PLAY_DMA_INTR_AT_SSO; | |
795 | sso_eso = timing->buffer_size - 1; | |
796 | sso_eso |= timing->sso << 16; | |
797 | ||
798 | delta = sis_rate_to_delta(runtime->rate); | |
799 | ||
800 | /* We've done the math, now configure the channel. | |
801 | */ | |
802 | writel(format, play_base + SIS_PLAY_DMA_FORMAT_CSO); | |
803 | writel(sis->silence_dma_addr, play_base + SIS_PLAY_DMA_BASE); | |
804 | writel(control, play_base + SIS_PLAY_DMA_CONTROL); | |
805 | writel(sso_eso, play_base + SIS_PLAY_DMA_SSO_ESO); | |
806 | ||
807 | for (reg = 0; reg < SIS_WAVE_SIZE; reg += 4) | |
808 | writel(0, wave_base + reg); | |
809 | ||
810 | writel(SIS_WAVE_GENERAL_WAVE_VOLUME, wave_base + SIS_WAVE_GENERAL); | |
811 | writel(delta << 16, wave_base + SIS_WAVE_GENERAL_ARTICULATION); | |
812 | writel(SIS_WAVE_CHANNEL_CONTROL_FIRST_SAMPLE | | |
813 | SIS_WAVE_CHANNEL_CONTROL_AMP_ENABLE | | |
814 | SIS_WAVE_CHANNEL_CONTROL_INTERPOLATE_ENABLE, | |
815 | wave_base + SIS_WAVE_CHANNEL_CONTROL); | |
816 | } | |
817 | ||
818 | static int sis_pcm_capture_prepare(struct snd_pcm_substream *substream) | |
819 | { | |
820 | struct snd_pcm_runtime *runtime = substream->runtime; | |
821 | struct voice *voice = runtime->private_data; | |
822 | void __iomem *rec_base = voice->ctrl_base; | |
823 | u32 format, dma_addr, control; | |
824 | u16 leo; | |
825 | ||
826 | /* We rely on the PCM core to ensure that the parameters for this | |
827 | * substream do not change on us while we're programming the HW. | |
828 | */ | |
829 | format = 0; | |
830 | if (snd_pcm_format_width(runtime->format) == 8) | |
831 | format = SIS_CAPTURE_DMA_FORMAT_8BIT; | |
832 | if (!snd_pcm_format_signed(runtime->format)) | |
833 | format |= SIS_CAPTURE_DMA_FORMAT_UNSIGNED; | |
834 | if (runtime->channels == 1) | |
835 | format |= SIS_CAPTURE_DMA_FORMAT_MONO; | |
836 | ||
837 | dma_addr = runtime->dma_addr; | |
838 | leo = runtime->buffer_size - 1; | |
839 | control = leo | SIS_CAPTURE_DMA_LOOP; | |
840 | ||
841 | /* If we've got more than two periods per buffer, then we have | |
842 | * use a timing voice to clock out the periods. Otherwise, we can | |
843 | * use the capture channel's interrupts. | |
844 | */ | |
845 | if (voice->timing) { | |
846 | sis_prepare_timing_voice(voice, substream); | |
847 | } else { | |
848 | control |= SIS_CAPTURE_DMA_INTR_AT_LEO; | |
849 | if (runtime->period_size != runtime->buffer_size) | |
850 | control |= SIS_CAPTURE_DMA_INTR_AT_MLP; | |
851 | } | |
852 | ||
853 | writel(format, rec_base + SIS_CAPTURE_DMA_FORMAT_CSO); | |
854 | writel(dma_addr, rec_base + SIS_CAPTURE_DMA_BASE); | |
855 | writel(control, rec_base + SIS_CAPTURE_DMA_CONTROL); | |
856 | ||
857 | /* Force the writes to post. */ | |
858 | readl(rec_base); | |
859 | ||
860 | return 0; | |
861 | } | |
862 | ||
2aa0eae9 | 863 | static const struct snd_pcm_ops sis_playback_ops = { |
175859bf DD |
864 | .open = sis_playback_open, |
865 | .close = sis_substream_close, | |
866 | .ioctl = snd_pcm_lib_ioctl, | |
867 | .hw_params = sis_playback_hw_params, | |
868 | .hw_free = sis_hw_free, | |
869 | .prepare = sis_pcm_playback_prepare, | |
870 | .trigger = sis_pcm_trigger, | |
871 | .pointer = sis_pcm_pointer, | |
872 | }; | |
873 | ||
2aa0eae9 | 874 | static const struct snd_pcm_ops sis_capture_ops = { |
175859bf DD |
875 | .open = sis_capture_open, |
876 | .close = sis_substream_close, | |
877 | .ioctl = snd_pcm_lib_ioctl, | |
878 | .hw_params = sis_capture_hw_params, | |
879 | .hw_free = sis_hw_free, | |
880 | .prepare = sis_pcm_capture_prepare, | |
881 | .trigger = sis_pcm_trigger, | |
882 | .pointer = sis_pcm_pointer, | |
883 | }; | |
884 | ||
e23e7a14 | 885 | static int sis_pcm_create(struct sis7019 *sis) |
175859bf DD |
886 | { |
887 | struct snd_pcm *pcm; | |
888 | int rc; | |
889 | ||
890 | /* We have 64 voices, and the driver currently records from | |
891 | * only one channel, though that could change in the future. | |
892 | */ | |
893 | rc = snd_pcm_new(sis->card, "SiS7019", 0, 64, 1, &pcm); | |
894 | if (rc) | |
895 | return rc; | |
896 | ||
897 | pcm->private_data = sis; | |
898 | strcpy(pcm->name, "SiS7019"); | |
899 | sis->pcm = pcm; | |
900 | ||
901 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &sis_playback_ops); | |
902 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &sis_capture_ops); | |
903 | ||
904 | /* Try to preallocate some memory, but it's not the end of the | |
905 | * world if this fails. | |
906 | */ | |
907 | snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, | |
908 | snd_dma_pci_data(sis->pci), 64*1024, 128*1024); | |
909 | ||
910 | return 0; | |
911 | } | |
912 | ||
913 | static unsigned short sis_ac97_rw(struct sis7019 *sis, int codec, u32 cmd) | |
914 | { | |
915 | unsigned long io = sis->ioport; | |
916 | unsigned short val = 0xffff; | |
917 | u16 status; | |
918 | u16 rdy; | |
919 | int count; | |
3f76d984 | 920 | static const u16 codec_ready[3] = { |
175859bf DD |
921 | SIS_AC97_STATUS_CODEC_READY, |
922 | SIS_AC97_STATUS_CODEC2_READY, | |
923 | SIS_AC97_STATUS_CODEC3_READY, | |
924 | }; | |
925 | ||
926 | rdy = codec_ready[codec]; | |
927 | ||
928 | ||
929 | /* Get the AC97 semaphore -- software first, so we don't spin | |
930 | * pounding out IO reads on the hardware semaphore... | |
931 | */ | |
932 | mutex_lock(&sis->ac97_mutex); | |
933 | ||
934 | count = 0xffff; | |
935 | while ((inw(io + SIS_AC97_SEMA) & SIS_AC97_SEMA_BUSY) && --count) | |
936 | udelay(1); | |
937 | ||
938 | if (!count) | |
939 | goto timeout; | |
940 | ||
941 | /* ... and wait for any outstanding commands to complete ... | |
942 | */ | |
943 | count = 0xffff; | |
944 | do { | |
945 | status = inw(io + SIS_AC97_STATUS); | |
946 | if ((status & rdy) && !(status & SIS_AC97_STATUS_BUSY)) | |
947 | break; | |
948 | ||
949 | udelay(1); | |
950 | } while (--count); | |
951 | ||
952 | if (!count) | |
953 | goto timeout_sema; | |
954 | ||
955 | /* ... before sending our command and waiting for it to finish ... | |
956 | */ | |
957 | outl(cmd, io + SIS_AC97_CMD); | |
958 | udelay(10); | |
959 | ||
960 | count = 0xffff; | |
961 | while ((inw(io + SIS_AC97_STATUS) & SIS_AC97_STATUS_BUSY) && --count) | |
962 | udelay(1); | |
963 | ||
964 | /* ... and reading the results (if any). | |
965 | */ | |
966 | val = inl(io + SIS_AC97_CMD) >> 16; | |
967 | ||
968 | timeout_sema: | |
969 | outl(SIS_AC97_SEMA_RELEASE, io + SIS_AC97_SEMA); | |
970 | timeout: | |
971 | mutex_unlock(&sis->ac97_mutex); | |
972 | ||
973 | if (!count) { | |
70597851 | 974 | dev_err(&sis->pci->dev, "ac97 codec %d timeout cmd 0x%08x\n", |
175859bf DD |
975 | codec, cmd); |
976 | } | |
977 | ||
978 | return val; | |
979 | } | |
980 | ||
981 | static void sis_ac97_write(struct snd_ac97 *ac97, unsigned short reg, | |
982 | unsigned short val) | |
983 | { | |
3f76d984 | 984 | static const u32 cmd[3] = { |
175859bf DD |
985 | SIS_AC97_CMD_CODEC_WRITE, |
986 | SIS_AC97_CMD_CODEC2_WRITE, | |
987 | SIS_AC97_CMD_CODEC3_WRITE, | |
988 | }; | |
989 | sis_ac97_rw(ac97->private_data, ac97->num, | |
990 | (val << 16) | (reg << 8) | cmd[ac97->num]); | |
991 | } | |
992 | ||
993 | static unsigned short sis_ac97_read(struct snd_ac97 *ac97, unsigned short reg) | |
994 | { | |
3f76d984 | 995 | static const u32 cmd[3] = { |
175859bf DD |
996 | SIS_AC97_CMD_CODEC_READ, |
997 | SIS_AC97_CMD_CODEC2_READ, | |
998 | SIS_AC97_CMD_CODEC3_READ, | |
999 | }; | |
1000 | return sis_ac97_rw(ac97->private_data, ac97->num, | |
1001 | (reg << 8) | cmd[ac97->num]); | |
1002 | } | |
1003 | ||
e23e7a14 | 1004 | static int sis_mixer_create(struct sis7019 *sis) |
175859bf DD |
1005 | { |
1006 | struct snd_ac97_bus *bus; | |
1007 | struct snd_ac97_template ac97; | |
1008 | static struct snd_ac97_bus_ops ops = { | |
1009 | .write = sis_ac97_write, | |
1010 | .read = sis_ac97_read, | |
1011 | }; | |
1012 | int rc; | |
1013 | ||
1014 | memset(&ac97, 0, sizeof(ac97)); | |
1015 | ac97.private_data = sis; | |
1016 | ||
1017 | rc = snd_ac97_bus(sis->card, 0, &ops, NULL, &bus); | |
1018 | if (!rc && sis->codecs_present & SIS_PRIMARY_CODEC_PRESENT) | |
1019 | rc = snd_ac97_mixer(bus, &ac97, &sis->ac97[0]); | |
1020 | ac97.num = 1; | |
1021 | if (!rc && (sis->codecs_present & SIS_SECONDARY_CODEC_PRESENT)) | |
1022 | rc = snd_ac97_mixer(bus, &ac97, &sis->ac97[1]); | |
1023 | ac97.num = 2; | |
1024 | if (!rc && (sis->codecs_present & SIS_TERTIARY_CODEC_PRESENT)) | |
1025 | rc = snd_ac97_mixer(bus, &ac97, &sis->ac97[2]); | |
1026 | ||
1027 | /* If we return an error here, then snd_card_free() should | |
1028 | * free up any ac97 codecs that got created, as well as the bus. | |
1029 | */ | |
1030 | return rc; | |
1031 | } | |
1032 | ||
1033 | static void sis_free_suspend(struct sis7019 *sis) | |
1034 | { | |
1035 | int i; | |
1036 | ||
1037 | for (i = 0; i < SIS_SUSPEND_PAGES; i++) | |
1038 | kfree(sis->suspend_state[i]); | |
1039 | } | |
1040 | ||
1041 | static int sis_chip_free(struct sis7019 *sis) | |
1042 | { | |
1043 | /* Reset the chip, and disable all interrputs. | |
1044 | */ | |
1045 | outl(SIS_GCR_SOFTWARE_RESET, sis->ioport + SIS_GCR); | |
08b45098 | 1046 | udelay(25); |
175859bf DD |
1047 | outl(0, sis->ioport + SIS_GCR); |
1048 | outl(0, sis->ioport + SIS_GIER); | |
1049 | ||
1050 | /* Now, free everything we allocated. | |
1051 | */ | |
1052 | if (sis->irq >= 0) | |
1053 | free_irq(sis->irq, sis); | |
1054 | ||
ff6defa6 | 1055 | iounmap(sis->ioaddr); |
175859bf DD |
1056 | pci_release_regions(sis->pci); |
1057 | pci_disable_device(sis->pci); | |
175859bf DD |
1058 | sis_free_suspend(sis); |
1059 | return 0; | |
1060 | } | |
1061 | ||
1062 | static int sis_dev_free(struct snd_device *dev) | |
1063 | { | |
1064 | struct sis7019 *sis = dev->device_data; | |
1065 | return sis_chip_free(sis); | |
1066 | } | |
1067 | ||
1068 | static int sis_chip_init(struct sis7019 *sis) | |
1069 | { | |
1070 | unsigned long io = sis->ioport; | |
1071 | void __iomem *ioaddr = sis->ioaddr; | |
fc084e0b | 1072 | unsigned long timeout; |
175859bf DD |
1073 | u16 status; |
1074 | int count; | |
1075 | int i; | |
1076 | ||
1077 | /* Reset the audio controller | |
1078 | */ | |
1079 | outl(SIS_GCR_SOFTWARE_RESET, io + SIS_GCR); | |
08b45098 | 1080 | udelay(25); |
175859bf DD |
1081 | outl(0, io + SIS_GCR); |
1082 | ||
1083 | /* Get the AC-link semaphore, and reset the codecs | |
1084 | */ | |
1085 | count = 0xffff; | |
1086 | while ((inw(io + SIS_AC97_SEMA) & SIS_AC97_SEMA_BUSY) && --count) | |
1087 | udelay(1); | |
1088 | ||
1089 | if (!count) | |
1090 | return -EIO; | |
1091 | ||
1092 | outl(SIS_AC97_CMD_CODEC_COLD_RESET, io + SIS_AC97_CMD); | |
08b45098 | 1093 | udelay(250); |
175859bf DD |
1094 | |
1095 | count = 0xffff; | |
1096 | while ((inw(io + SIS_AC97_STATUS) & SIS_AC97_STATUS_BUSY) && --count) | |
1097 | udelay(1); | |
1098 | ||
fc084e0b DD |
1099 | /* Command complete, we can let go of the semaphore now. |
1100 | */ | |
1101 | outl(SIS_AC97_SEMA_RELEASE, io + SIS_AC97_SEMA); | |
1102 | if (!count) | |
1103 | return -EIO; | |
1104 | ||
175859bf | 1105 | /* Now that we've finished the reset, find out what's attached. |
fc084e0b DD |
1106 | * There are some codec/board combinations that take an extremely |
1107 | * long time to come up. 350+ ms has been observed in the field, | |
1108 | * so we'll give them up to 500ms. | |
175859bf | 1109 | */ |
fc084e0b DD |
1110 | sis->codecs_present = 0; |
1111 | timeout = msecs_to_jiffies(500) + jiffies; | |
1112 | while (time_before_eq(jiffies, timeout)) { | |
1113 | status = inl(io + SIS_AC97_STATUS); | |
1114 | if (status & SIS_AC97_STATUS_CODEC_READY) | |
1115 | sis->codecs_present |= SIS_PRIMARY_CODEC_PRESENT; | |
1116 | if (status & SIS_AC97_STATUS_CODEC2_READY) | |
1117 | sis->codecs_present |= SIS_SECONDARY_CODEC_PRESENT; | |
1118 | if (status & SIS_AC97_STATUS_CODEC3_READY) | |
1119 | sis->codecs_present |= SIS_TERTIARY_CODEC_PRESENT; | |
1120 | ||
1121 | if (sis->codecs_present == codecs) | |
1122 | break; | |
1123 | ||
1124 | msleep(1); | |
1125 | } | |
1126 | ||
1127 | /* All done, check for errors. | |
175859bf | 1128 | */ |
fc084e0b | 1129 | if (!sis->codecs_present) { |
70597851 | 1130 | dev_err(&sis->pci->dev, "could not find any codecs\n"); |
175859bf | 1131 | return -EIO; |
fc084e0b DD |
1132 | } |
1133 | ||
1134 | if (sis->codecs_present != codecs) { | |
70597851 DD |
1135 | dev_warn(&sis->pci->dev, "missing codecs, found %0x, expected %0x\n", |
1136 | sis->codecs_present, codecs); | |
fc084e0b | 1137 | } |
175859bf DD |
1138 | |
1139 | /* Let the hardware know that the audio driver is alive, | |
1140 | * and enable PCM slots on the AC-link for L/R playback (3 & 4) and | |
1141 | * record channels. We're going to want to use Variable Rate Audio | |
1142 | * for recording, to avoid needlessly resampling from 48kHZ. | |
1143 | */ | |
1144 | outl(SIS_AC97_CONF_AUDIO_ALIVE, io + SIS_AC97_CONF); | |
1145 | outl(SIS_AC97_CONF_AUDIO_ALIVE | SIS_AC97_CONF_PCM_LR_ENABLE | | |
1146 | SIS_AC97_CONF_PCM_CAP_MIC_ENABLE | | |
1147 | SIS_AC97_CONF_PCM_CAP_LR_ENABLE | | |
1148 | SIS_AC97_CONF_CODEC_VRA_ENABLE, io + SIS_AC97_CONF); | |
1149 | ||
1150 | /* All AC97 PCM slots should be sourced from sub-mixer 0. | |
1151 | */ | |
1152 | outl(0, io + SIS_AC97_PSR); | |
1153 | ||
1154 | /* There is only one valid DMA setup for a PCI environment. | |
1155 | */ | |
1156 | outl(SIS_DMA_CSR_PCI_SETTINGS, io + SIS_DMA_CSR); | |
1157 | ||
25985edc | 1158 | /* Reset the synchronization groups for all of the channels |
b3834be5 | 1159 | * to be asynchronous. If we start doing SPDIF or 5.1 sound, etc. |
175859bf DD |
1160 | * we'll need to change how we handle these. Until then, we just |
1161 | * assign sub-mixer 0 to all playback channels, and avoid any | |
1162 | * attenuation on the audio. | |
1163 | */ | |
1164 | outl(0, io + SIS_PLAY_SYNC_GROUP_A); | |
1165 | outl(0, io + SIS_PLAY_SYNC_GROUP_B); | |
1166 | outl(0, io + SIS_PLAY_SYNC_GROUP_C); | |
1167 | outl(0, io + SIS_PLAY_SYNC_GROUP_D); | |
1168 | outl(0, io + SIS_MIXER_SYNC_GROUP); | |
1169 | ||
1170 | for (i = 0; i < 64; i++) { | |
1171 | writel(i, SIS_MIXER_START_ADDR(ioaddr, i)); | |
1172 | writel(SIS_MIXER_RIGHT_NO_ATTEN | SIS_MIXER_LEFT_NO_ATTEN | | |
1173 | SIS_MIXER_DEST_0, SIS_MIXER_ADDR(ioaddr, i)); | |
1174 | } | |
1175 | ||
1176 | /* Don't attenuate any audio set for the wave amplifier. | |
1177 | * | |
1178 | * FIXME: Maximum attenuation is set for the music amp, which will | |
1179 | * need to change if we start using the synth engine. | |
1180 | */ | |
1181 | outl(0xffff0000, io + SIS_WEVCR); | |
1182 | ||
1183 | /* Ensure that the wave engine is in normal operating mode. | |
1184 | */ | |
1185 | outl(0, io + SIS_WECCR); | |
1186 | ||
1187 | /* Go ahead and enable the DMA interrupts. They won't go live | |
1188 | * until we start a channel. | |
1189 | */ | |
1190 | outl(SIS_GIER_AUDIO_PLAY_DMA_IRQ_ENABLE | | |
1191 | SIS_GIER_AUDIO_RECORD_DMA_IRQ_ENABLE, io + SIS_GIER); | |
1192 | ||
1193 | return 0; | |
1194 | } | |
1195 | ||
c7561cd8 | 1196 | #ifdef CONFIG_PM_SLEEP |
68cb2b55 | 1197 | static int sis_suspend(struct device *dev) |
175859bf | 1198 | { |
68cb2b55 | 1199 | struct snd_card *card = dev_get_drvdata(dev); |
175859bf DD |
1200 | struct sis7019 *sis = card->private_data; |
1201 | void __iomem *ioaddr = sis->ioaddr; | |
1202 | int i; | |
1203 | ||
1204 | snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); | |
175859bf DD |
1205 | if (sis->codecs_present & SIS_PRIMARY_CODEC_PRESENT) |
1206 | snd_ac97_suspend(sis->ac97[0]); | |
1207 | if (sis->codecs_present & SIS_SECONDARY_CODEC_PRESENT) | |
1208 | snd_ac97_suspend(sis->ac97[1]); | |
1209 | if (sis->codecs_present & SIS_TERTIARY_CODEC_PRESENT) | |
1210 | snd_ac97_suspend(sis->ac97[2]); | |
1211 | ||
1212 | /* snd_pcm_suspend_all() stopped all channels, so we're quiescent. | |
1213 | */ | |
1214 | if (sis->irq >= 0) { | |
175859bf DD |
1215 | free_irq(sis->irq, sis); |
1216 | sis->irq = -1; | |
1217 | } | |
1218 | ||
1219 | /* Save the internal state away | |
1220 | */ | |
1221 | for (i = 0; i < 4; i++) { | |
1222 | memcpy_fromio(sis->suspend_state[i], ioaddr, 4096); | |
1223 | ioaddr += 4096; | |
1224 | } | |
1225 | ||
175859bf DD |
1226 | return 0; |
1227 | } | |
1228 | ||
68cb2b55 | 1229 | static int sis_resume(struct device *dev) |
175859bf | 1230 | { |
68cb2b55 TI |
1231 | struct pci_dev *pci = to_pci_dev(dev); |
1232 | struct snd_card *card = dev_get_drvdata(dev); | |
175859bf DD |
1233 | struct sis7019 *sis = card->private_data; |
1234 | void __iomem *ioaddr = sis->ioaddr; | |
1235 | int i; | |
1236 | ||
175859bf | 1237 | if (sis_chip_init(sis)) { |
70597851 | 1238 | dev_err(&pci->dev, "unable to re-init controller\n"); |
175859bf DD |
1239 | goto error; |
1240 | } | |
1241 | ||
88e24c3a | 1242 | if (request_irq(pci->irq, sis_interrupt, IRQF_SHARED, |
934c2b6d | 1243 | KBUILD_MODNAME, sis)) { |
70597851 | 1244 | dev_err(&pci->dev, "unable to regain IRQ %d\n", pci->irq); |
175859bf DD |
1245 | goto error; |
1246 | } | |
1247 | ||
1248 | /* Restore saved state, then clear out the page we use for the | |
1249 | * silence buffer. | |
1250 | */ | |
1251 | for (i = 0; i < 4; i++) { | |
1252 | memcpy_toio(ioaddr, sis->suspend_state[i], 4096); | |
1253 | ioaddr += 4096; | |
1254 | } | |
1255 | ||
1256 | memset(sis->suspend_state[0], 0, 4096); | |
1257 | ||
1258 | sis->irq = pci->irq; | |
175859bf DD |
1259 | |
1260 | if (sis->codecs_present & SIS_PRIMARY_CODEC_PRESENT) | |
1261 | snd_ac97_resume(sis->ac97[0]); | |
1262 | if (sis->codecs_present & SIS_SECONDARY_CODEC_PRESENT) | |
1263 | snd_ac97_resume(sis->ac97[1]); | |
1264 | if (sis->codecs_present & SIS_TERTIARY_CODEC_PRESENT) | |
1265 | snd_ac97_resume(sis->ac97[2]); | |
1266 | ||
1267 | snd_power_change_state(card, SNDRV_CTL_POWER_D0); | |
1268 | return 0; | |
1269 | ||
1270 | error: | |
1271 | snd_card_disconnect(card); | |
1272 | return -EIO; | |
1273 | } | |
68cb2b55 TI |
1274 | |
1275 | static SIMPLE_DEV_PM_OPS(sis_pm, sis_suspend, sis_resume); | |
1276 | #define SIS_PM_OPS &sis_pm | |
1277 | #else | |
1278 | #define SIS_PM_OPS NULL | |
c7561cd8 | 1279 | #endif /* CONFIG_PM_SLEEP */ |
175859bf DD |
1280 | |
1281 | static int sis_alloc_suspend(struct sis7019 *sis) | |
1282 | { | |
1283 | int i; | |
1284 | ||
1285 | /* We need 16K to store the internal wave engine state during a | |
1286 | * suspend, but we don't need it to be contiguous, so play nice | |
1287 | * with the memory system. We'll also use this area for a silence | |
1288 | * buffer. | |
1289 | */ | |
1290 | for (i = 0; i < SIS_SUSPEND_PAGES; i++) { | |
1291 | sis->suspend_state[i] = kmalloc(4096, GFP_KERNEL); | |
1292 | if (!sis->suspend_state[i]) | |
1293 | return -ENOMEM; | |
1294 | } | |
1295 | memset(sis->suspend_state[0], 0, 4096); | |
1296 | ||
1297 | return 0; | |
1298 | } | |
1299 | ||
e23e7a14 BP |
1300 | static int sis_chip_create(struct snd_card *card, |
1301 | struct pci_dev *pci) | |
175859bf DD |
1302 | { |
1303 | struct sis7019 *sis = card->private_data; | |
1304 | struct voice *voice; | |
1305 | static struct snd_device_ops ops = { | |
1306 | .dev_free = sis_dev_free, | |
1307 | }; | |
1308 | int rc; | |
1309 | int i; | |
1310 | ||
1311 | rc = pci_enable_device(pci); | |
1312 | if (rc) | |
1313 | goto error_out; | |
1314 | ||
412b979c | 1315 | rc = dma_set_mask(&pci->dev, DMA_BIT_MASK(30)); |
8b1dacb6 | 1316 | if (rc < 0) { |
70597851 | 1317 | dev_err(&pci->dev, "architecture does not support 30-bit PCI busmaster DMA"); |
175859bf DD |
1318 | goto error_out_enabled; |
1319 | } | |
1320 | ||
1321 | memset(sis, 0, sizeof(*sis)); | |
1322 | mutex_init(&sis->ac97_mutex); | |
1323 | spin_lock_init(&sis->voice_lock); | |
1324 | sis->card = card; | |
1325 | sis->pci = pci; | |
1326 | sis->irq = -1; | |
1327 | sis->ioport = pci_resource_start(pci, 0); | |
1328 | ||
1329 | rc = pci_request_regions(pci, "SiS7019"); | |
1330 | if (rc) { | |
70597851 | 1331 | dev_err(&pci->dev, "unable request regions\n"); |
175859bf DD |
1332 | goto error_out_enabled; |
1333 | } | |
1334 | ||
1335 | rc = -EIO; | |
1336 | sis->ioaddr = ioremap_nocache(pci_resource_start(pci, 1), 0x4000); | |
1337 | if (!sis->ioaddr) { | |
70597851 | 1338 | dev_err(&pci->dev, "unable to remap MMIO, aborting\n"); |
175859bf DD |
1339 | goto error_out_cleanup; |
1340 | } | |
1341 | ||
1342 | rc = sis_alloc_suspend(sis); | |
1343 | if (rc < 0) { | |
70597851 | 1344 | dev_err(&pci->dev, "unable to allocate state storage\n"); |
175859bf DD |
1345 | goto error_out_cleanup; |
1346 | } | |
1347 | ||
1348 | rc = sis_chip_init(sis); | |
1349 | if (rc) | |
1350 | goto error_out_cleanup; | |
1351 | ||
ae970eb4 JL |
1352 | rc = request_irq(pci->irq, sis_interrupt, IRQF_SHARED, KBUILD_MODNAME, |
1353 | sis); | |
1354 | if (rc) { | |
70597851 | 1355 | dev_err(&pci->dev, "unable to allocate irq %d\n", sis->irq); |
175859bf DD |
1356 | goto error_out_cleanup; |
1357 | } | |
1358 | ||
1359 | sis->irq = pci->irq; | |
1360 | pci_set_master(pci); | |
1361 | ||
1362 | for (i = 0; i < 64; i++) { | |
1363 | voice = &sis->voices[i]; | |
1364 | voice->num = i; | |
1365 | voice->ctrl_base = SIS_PLAY_DMA_ADDR(sis->ioaddr, i); | |
1366 | voice->wave_base = SIS_WAVE_ADDR(sis->ioaddr, i); | |
1367 | } | |
1368 | ||
1369 | voice = &sis->capture_voice; | |
1370 | voice->flags = VOICE_CAPTURE; | |
1371 | voice->num = SIS_CAPTURE_CHAN_AC97_PCM_IN; | |
1372 | voice->ctrl_base = SIS_CAPTURE_DMA_ADDR(sis->ioaddr, voice->num); | |
1373 | ||
1374 | rc = snd_device_new(card, SNDRV_DEV_LOWLEVEL, sis, &ops); | |
1375 | if (rc) | |
1376 | goto error_out_cleanup; | |
1377 | ||
175859bf DD |
1378 | return 0; |
1379 | ||
1380 | error_out_cleanup: | |
1381 | sis_chip_free(sis); | |
1382 | ||
1383 | error_out_enabled: | |
1384 | pci_disable_device(pci); | |
1385 | ||
1386 | error_out: | |
1387 | return rc; | |
1388 | } | |
1389 | ||
e23e7a14 BP |
1390 | static int snd_sis7019_probe(struct pci_dev *pci, |
1391 | const struct pci_device_id *pci_id) | |
175859bf DD |
1392 | { |
1393 | struct snd_card *card; | |
1394 | struct sis7019 *sis; | |
1395 | int rc; | |
1396 | ||
1397 | rc = -ENOENT; | |
1398 | if (!enable) | |
1399 | goto error_out; | |
1400 | ||
fc084e0b DD |
1401 | /* The user can specify which codecs should be present so that we |
1402 | * can wait for them to show up if they are slow to recover from | |
1403 | * the AC97 cold reset. We default to a single codec, the primary. | |
1404 | * | |
1405 | * We assume that SIS_PRIMARY_*_PRESENT matches bits 0-2. | |
1406 | */ | |
1407 | codecs &= SIS_PRIMARY_CODEC_PRESENT | SIS_SECONDARY_CODEC_PRESENT | | |
1408 | SIS_TERTIARY_CODEC_PRESENT; | |
1409 | if (!codecs) | |
1410 | codecs = SIS_PRIMARY_CODEC_PRESENT; | |
1411 | ||
60c5772b TI |
1412 | rc = snd_card_new(&pci->dev, index, id, THIS_MODULE, |
1413 | sizeof(*sis), &card); | |
e58de7ba | 1414 | if (rc < 0) |
175859bf DD |
1415 | goto error_out; |
1416 | ||
1417 | strcpy(card->driver, "SiS7019"); | |
1418 | strcpy(card->shortname, "SiS7019"); | |
1419 | rc = sis_chip_create(card, pci); | |
1420 | if (rc) | |
1421 | goto card_error_out; | |
1422 | ||
1423 | sis = card->private_data; | |
1424 | ||
1425 | rc = sis_mixer_create(sis); | |
1426 | if (rc) | |
1427 | goto card_error_out; | |
1428 | ||
1429 | rc = sis_pcm_create(sis); | |
1430 | if (rc) | |
1431 | goto card_error_out; | |
1432 | ||
1433 | snprintf(card->longname, sizeof(card->longname), | |
1434 | "%s Audio Accelerator with %s at 0x%lx, irq %d", | |
1435 | card->shortname, snd_ac97_get_short_name(sis->ac97[0]), | |
1436 | sis->ioport, sis->irq); | |
1437 | ||
1438 | rc = snd_card_register(card); | |
1439 | if (rc) | |
1440 | goto card_error_out; | |
1441 | ||
1442 | pci_set_drvdata(pci, card); | |
1443 | return 0; | |
1444 | ||
1445 | card_error_out: | |
1446 | snd_card_free(card); | |
1447 | ||
1448 | error_out: | |
1449 | return rc; | |
1450 | } | |
1451 | ||
e23e7a14 | 1452 | static void snd_sis7019_remove(struct pci_dev *pci) |
175859bf DD |
1453 | { |
1454 | snd_card_free(pci_get_drvdata(pci)); | |
175859bf DD |
1455 | } |
1456 | ||
1457 | static struct pci_driver sis7019_driver = { | |
3733e424 | 1458 | .name = KBUILD_MODNAME, |
175859bf DD |
1459 | .id_table = snd_sis7019_ids, |
1460 | .probe = snd_sis7019_probe, | |
e23e7a14 | 1461 | .remove = snd_sis7019_remove, |
68cb2b55 TI |
1462 | .driver = { |
1463 | .pm = SIS_PM_OPS, | |
1464 | }, | |
175859bf DD |
1465 | }; |
1466 | ||
e9f66d9b | 1467 | module_pci_driver(sis7019_driver); |