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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 | ||
175859bf DD |
502 | static int sis_pcm_playback_prepare(struct snd_pcm_substream *substream) |
503 | { | |
504 | struct snd_pcm_runtime *runtime = substream->runtime; | |
505 | struct voice *voice = runtime->private_data; | |
506 | void __iomem *ctrl_base = voice->ctrl_base; | |
507 | void __iomem *wave_base = voice->wave_base; | |
508 | u32 format, dma_addr, control, sso_eso, delta, reg; | |
509 | u16 leo; | |
510 | ||
511 | /* We rely on the PCM core to ensure that the parameters for this | |
512 | * substream do not change on us while we're programming the HW. | |
513 | */ | |
514 | format = 0; | |
515 | if (snd_pcm_format_width(runtime->format) == 8) | |
516 | format |= SIS_PLAY_DMA_FORMAT_8BIT; | |
517 | if (!snd_pcm_format_signed(runtime->format)) | |
518 | format |= SIS_PLAY_DMA_FORMAT_UNSIGNED; | |
519 | if (runtime->channels == 1) | |
520 | format |= SIS_PLAY_DMA_FORMAT_MONO; | |
521 | ||
522 | /* The baseline setup is for a single period per buffer, and | |
523 | * we add bells and whistles as needed from there. | |
524 | */ | |
525 | dma_addr = runtime->dma_addr; | |
526 | leo = runtime->buffer_size - 1; | |
527 | control = leo | SIS_PLAY_DMA_LOOP | SIS_PLAY_DMA_INTR_AT_LEO; | |
528 | sso_eso = leo; | |
529 | ||
530 | if (runtime->period_size == (runtime->buffer_size / 2)) { | |
531 | control |= SIS_PLAY_DMA_INTR_AT_MLP; | |
532 | } else if (runtime->period_size != runtime->buffer_size) { | |
533 | voice->flags |= VOICE_SSO_TIMING; | |
534 | voice->sso = runtime->period_size - 1; | |
535 | voice->period_size = runtime->period_size; | |
536 | voice->buffer_size = runtime->buffer_size; | |
537 | ||
538 | control &= ~SIS_PLAY_DMA_INTR_AT_LEO; | |
539 | control |= SIS_PLAY_DMA_INTR_AT_SSO; | |
540 | sso_eso |= (runtime->period_size - 1) << 16; | |
541 | } | |
542 | ||
543 | delta = sis_rate_to_delta(runtime->rate); | |
544 | ||
545 | /* Ok, we're ready to go, set up the channel. | |
546 | */ | |
547 | writel(format, ctrl_base + SIS_PLAY_DMA_FORMAT_CSO); | |
548 | writel(dma_addr, ctrl_base + SIS_PLAY_DMA_BASE); | |
549 | writel(control, ctrl_base + SIS_PLAY_DMA_CONTROL); | |
550 | writel(sso_eso, ctrl_base + SIS_PLAY_DMA_SSO_ESO); | |
551 | ||
552 | for (reg = 0; reg < SIS_WAVE_SIZE; reg += 4) | |
553 | writel(0, wave_base + reg); | |
554 | ||
555 | writel(SIS_WAVE_GENERAL_WAVE_VOLUME, wave_base + SIS_WAVE_GENERAL); | |
556 | writel(delta << 16, wave_base + SIS_WAVE_GENERAL_ARTICULATION); | |
557 | writel(SIS_WAVE_CHANNEL_CONTROL_FIRST_SAMPLE | | |
558 | SIS_WAVE_CHANNEL_CONTROL_AMP_ENABLE | | |
559 | SIS_WAVE_CHANNEL_CONTROL_INTERPOLATE_ENABLE, | |
560 | wave_base + SIS_WAVE_CHANNEL_CONTROL); | |
561 | ||
562 | /* Force PCI writes to post. */ | |
563 | readl(ctrl_base); | |
564 | ||
565 | return 0; | |
566 | } | |
567 | ||
568 | static int sis_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
569 | { | |
570 | struct sis7019 *sis = snd_pcm_substream_chip(substream); | |
571 | unsigned long io = sis->ioport; | |
572 | struct snd_pcm_substream *s; | |
573 | struct voice *voice; | |
574 | void *chip; | |
575 | int starting; | |
576 | u32 record = 0; | |
577 | u32 play[2] = { 0, 0 }; | |
578 | ||
579 | /* No locks needed, as the PCM core will hold the locks on the | |
580 | * substreams, and the HW will only start/stop the indicated voices | |
581 | * without changing the state of the others. | |
582 | */ | |
583 | switch (cmd) { | |
584 | case SNDRV_PCM_TRIGGER_START: | |
585 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
586 | case SNDRV_PCM_TRIGGER_RESUME: | |
587 | starting = 1; | |
588 | break; | |
589 | case SNDRV_PCM_TRIGGER_STOP: | |
590 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
591 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
592 | starting = 0; | |
593 | break; | |
594 | default: | |
595 | return -EINVAL; | |
596 | } | |
597 | ||
598 | snd_pcm_group_for_each_entry(s, substream) { | |
599 | /* Make sure it is for us... */ | |
600 | chip = snd_pcm_substream_chip(s); | |
601 | if (chip != sis) | |
602 | continue; | |
603 | ||
604 | voice = s->runtime->private_data; | |
605 | if (voice->flags & VOICE_CAPTURE) { | |
606 | record |= 1 << voice->num; | |
607 | voice = voice->timing; | |
608 | } | |
609 | ||
610 | /* voice could be NULL if this a recording stream, and it | |
611 | * doesn't have an external timing channel. | |
612 | */ | |
613 | if (voice) | |
614 | play[voice->num / 32] |= 1 << (voice->num & 0x1f); | |
615 | ||
616 | snd_pcm_trigger_done(s, substream); | |
617 | } | |
618 | ||
619 | if (starting) { | |
620 | if (record) | |
621 | outl(record, io + SIS_RECORD_START_REG); | |
622 | if (play[0]) | |
623 | outl(play[0], io + SIS_PLAY_START_A_REG); | |
624 | if (play[1]) | |
625 | outl(play[1], io + SIS_PLAY_START_B_REG); | |
626 | } else { | |
627 | if (record) | |
628 | outl(record, io + SIS_RECORD_STOP_REG); | |
629 | if (play[0]) | |
630 | outl(play[0], io + SIS_PLAY_STOP_A_REG); | |
631 | if (play[1]) | |
632 | outl(play[1], io + SIS_PLAY_STOP_B_REG); | |
633 | } | |
634 | return 0; | |
635 | } | |
636 | ||
637 | static snd_pcm_uframes_t sis_pcm_pointer(struct snd_pcm_substream *substream) | |
638 | { | |
639 | struct snd_pcm_runtime *runtime = substream->runtime; | |
640 | struct voice *voice = runtime->private_data; | |
641 | u32 cso; | |
642 | ||
643 | cso = readl(voice->ctrl_base + SIS_PLAY_DMA_FORMAT_CSO); | |
644 | cso &= 0xffff; | |
645 | return cso; | |
646 | } | |
647 | ||
648 | static int sis_capture_open(struct snd_pcm_substream *substream) | |
649 | { | |
650 | struct sis7019 *sis = snd_pcm_substream_chip(substream); | |
651 | struct snd_pcm_runtime *runtime = substream->runtime; | |
652 | struct voice *voice = &sis->capture_voice; | |
653 | unsigned long flags; | |
654 | ||
655 | /* FIXME: The driver only supports recording from one channel | |
656 | * at the moment, but it could support more. | |
657 | */ | |
658 | spin_lock_irqsave(&sis->voice_lock, flags); | |
659 | if (voice->flags & VOICE_IN_USE) | |
660 | voice = NULL; | |
661 | else | |
662 | voice->flags |= VOICE_IN_USE; | |
663 | spin_unlock_irqrestore(&sis->voice_lock, flags); | |
664 | ||
665 | if (!voice) | |
666 | return -EAGAIN; | |
667 | ||
668 | voice->substream = substream; | |
669 | runtime->private_data = voice; | |
670 | runtime->hw = sis_capture_hw_info; | |
671 | runtime->hw.rates = sis->ac97[0]->rates[AC97_RATES_ADC]; | |
672 | snd_pcm_limit_hw_rates(runtime); | |
673 | snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, | |
674 | 9, 0xfff9); | |
675 | snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, | |
676 | 9, 0xfff9); | |
677 | snd_pcm_set_sync(substream); | |
678 | return 0; | |
679 | } | |
680 | ||
681 | static int sis_capture_hw_params(struct snd_pcm_substream *substream, | |
682 | struct snd_pcm_hw_params *hw_params) | |
683 | { | |
684 | struct sis7019 *sis = snd_pcm_substream_chip(substream); | |
685 | int rc; | |
686 | ||
687 | rc = snd_ac97_set_rate(sis->ac97[0], AC97_PCM_LR_ADC_RATE, | |
688 | params_rate(hw_params)); | |
689 | if (rc) | |
690 | goto out; | |
691 | ||
175859bf DD |
692 | rc = sis_alloc_timing_voice(substream, hw_params); |
693 | ||
694 | out: | |
695 | return rc; | |
696 | } | |
697 | ||
698 | static void sis_prepare_timing_voice(struct voice *voice, | |
699 | struct snd_pcm_substream *substream) | |
700 | { | |
701 | struct sis7019 *sis = snd_pcm_substream_chip(substream); | |
702 | struct snd_pcm_runtime *runtime = substream->runtime; | |
703 | struct voice *timing = voice->timing; | |
704 | void __iomem *play_base = timing->ctrl_base; | |
705 | void __iomem *wave_base = timing->wave_base; | |
706 | u16 buffer_size, period_size; | |
707 | u32 format, control, sso_eso, delta; | |
708 | u32 vperiod, sso, reg; | |
709 | ||
710 | /* Set our initial buffer and period as large as we can given a | |
711 | * single page of silence. | |
712 | */ | |
713 | buffer_size = 4096 / runtime->channels; | |
714 | buffer_size /= snd_pcm_format_size(runtime->format, 1); | |
715 | period_size = buffer_size; | |
716 | ||
717 | /* Initially, we want to interrupt just a bit behind the end of | |
3a3d5fd1 | 718 | * the period we're clocking out. 12 samples seems to give a good |
175859bf DD |
719 | * delay. |
720 | * | |
721 | * We want to spread our interrupts throughout the virtual period, | |
722 | * so that we don't end up with two interrupts back to back at the | |
723 | * end -- this helps minimize the effects of any jitter. Adjust our | |
724 | * clocking period size so that the last period is at least a fourth | |
725 | * of a full period. | |
726 | * | |
727 | * This is all moot if we don't need to use virtual periods. | |
728 | */ | |
3a3d5fd1 | 729 | vperiod = runtime->period_size + 12; |
175859bf DD |
730 | if (vperiod > period_size) { |
731 | u16 tail = vperiod % period_size; | |
732 | u16 quarter_period = period_size / 4; | |
733 | ||
734 | if (tail && tail < quarter_period) { | |
735 | u16 loops = vperiod / period_size; | |
736 | ||
737 | tail = quarter_period - tail; | |
738 | tail += loops - 1; | |
739 | tail /= loops; | |
740 | period_size -= tail; | |
741 | } | |
742 | ||
743 | sso = period_size - 1; | |
744 | } else { | |
745 | /* The initial period will fit inside the buffer, so we | |
746 | * don't need to use virtual periods -- disable them. | |
747 | */ | |
748 | period_size = runtime->period_size; | |
749 | sso = vperiod - 1; | |
750 | vperiod = 0; | |
751 | } | |
752 | ||
25985edc | 753 | /* The interrupt handler implements the timing synchronization, so |
175859bf DD |
754 | * setup its state. |
755 | */ | |
756 | timing->flags |= VOICE_SYNC_TIMING; | |
757 | timing->sync_base = voice->ctrl_base; | |
3a3d5fd1 | 758 | timing->sync_cso = runtime->period_size; |
175859bf DD |
759 | timing->sync_period_size = runtime->period_size; |
760 | timing->sync_buffer_size = runtime->buffer_size; | |
761 | timing->period_size = period_size; | |
762 | timing->buffer_size = buffer_size; | |
763 | timing->sso = sso; | |
764 | timing->vperiod = vperiod; | |
765 | ||
766 | /* Using unsigned samples with the all-zero silence buffer | |
767 | * forces the output to the lower rail, killing playback. | |
768 | * So ignore unsigned vs signed -- it doesn't change the timing. | |
769 | */ | |
770 | format = 0; | |
771 | if (snd_pcm_format_width(runtime->format) == 8) | |
772 | format = SIS_CAPTURE_DMA_FORMAT_8BIT; | |
773 | if (runtime->channels == 1) | |
774 | format |= SIS_CAPTURE_DMA_FORMAT_MONO; | |
775 | ||
776 | control = timing->buffer_size - 1; | |
777 | control |= SIS_PLAY_DMA_LOOP | SIS_PLAY_DMA_INTR_AT_SSO; | |
778 | sso_eso = timing->buffer_size - 1; | |
779 | sso_eso |= timing->sso << 16; | |
780 | ||
781 | delta = sis_rate_to_delta(runtime->rate); | |
782 | ||
783 | /* We've done the math, now configure the channel. | |
784 | */ | |
785 | writel(format, play_base + SIS_PLAY_DMA_FORMAT_CSO); | |
786 | writel(sis->silence_dma_addr, play_base + SIS_PLAY_DMA_BASE); | |
787 | writel(control, play_base + SIS_PLAY_DMA_CONTROL); | |
788 | writel(sso_eso, play_base + SIS_PLAY_DMA_SSO_ESO); | |
789 | ||
790 | for (reg = 0; reg < SIS_WAVE_SIZE; reg += 4) | |
791 | writel(0, wave_base + reg); | |
792 | ||
793 | writel(SIS_WAVE_GENERAL_WAVE_VOLUME, wave_base + SIS_WAVE_GENERAL); | |
794 | writel(delta << 16, wave_base + SIS_WAVE_GENERAL_ARTICULATION); | |
795 | writel(SIS_WAVE_CHANNEL_CONTROL_FIRST_SAMPLE | | |
796 | SIS_WAVE_CHANNEL_CONTROL_AMP_ENABLE | | |
797 | SIS_WAVE_CHANNEL_CONTROL_INTERPOLATE_ENABLE, | |
798 | wave_base + SIS_WAVE_CHANNEL_CONTROL); | |
799 | } | |
800 | ||
801 | static int sis_pcm_capture_prepare(struct snd_pcm_substream *substream) | |
802 | { | |
803 | struct snd_pcm_runtime *runtime = substream->runtime; | |
804 | struct voice *voice = runtime->private_data; | |
805 | void __iomem *rec_base = voice->ctrl_base; | |
806 | u32 format, dma_addr, control; | |
807 | u16 leo; | |
808 | ||
809 | /* We rely on the PCM core to ensure that the parameters for this | |
810 | * substream do not change on us while we're programming the HW. | |
811 | */ | |
812 | format = 0; | |
813 | if (snd_pcm_format_width(runtime->format) == 8) | |
814 | format = SIS_CAPTURE_DMA_FORMAT_8BIT; | |
815 | if (!snd_pcm_format_signed(runtime->format)) | |
816 | format |= SIS_CAPTURE_DMA_FORMAT_UNSIGNED; | |
817 | if (runtime->channels == 1) | |
818 | format |= SIS_CAPTURE_DMA_FORMAT_MONO; | |
819 | ||
820 | dma_addr = runtime->dma_addr; | |
821 | leo = runtime->buffer_size - 1; | |
822 | control = leo | SIS_CAPTURE_DMA_LOOP; | |
823 | ||
824 | /* If we've got more than two periods per buffer, then we have | |
825 | * use a timing voice to clock out the periods. Otherwise, we can | |
826 | * use the capture channel's interrupts. | |
827 | */ | |
828 | if (voice->timing) { | |
829 | sis_prepare_timing_voice(voice, substream); | |
830 | } else { | |
831 | control |= SIS_CAPTURE_DMA_INTR_AT_LEO; | |
832 | if (runtime->period_size != runtime->buffer_size) | |
833 | control |= SIS_CAPTURE_DMA_INTR_AT_MLP; | |
834 | } | |
835 | ||
836 | writel(format, rec_base + SIS_CAPTURE_DMA_FORMAT_CSO); | |
837 | writel(dma_addr, rec_base + SIS_CAPTURE_DMA_BASE); | |
838 | writel(control, rec_base + SIS_CAPTURE_DMA_CONTROL); | |
839 | ||
840 | /* Force the writes to post. */ | |
841 | readl(rec_base); | |
842 | ||
843 | return 0; | |
844 | } | |
845 | ||
2aa0eae9 | 846 | static const struct snd_pcm_ops sis_playback_ops = { |
175859bf DD |
847 | .open = sis_playback_open, |
848 | .close = sis_substream_close, | |
175859bf DD |
849 | .prepare = sis_pcm_playback_prepare, |
850 | .trigger = sis_pcm_trigger, | |
851 | .pointer = sis_pcm_pointer, | |
852 | }; | |
853 | ||
2aa0eae9 | 854 | static const struct snd_pcm_ops sis_capture_ops = { |
175859bf DD |
855 | .open = sis_capture_open, |
856 | .close = sis_substream_close, | |
175859bf | 857 | .hw_params = sis_capture_hw_params, |
175859bf DD |
858 | .prepare = sis_pcm_capture_prepare, |
859 | .trigger = sis_pcm_trigger, | |
860 | .pointer = sis_pcm_pointer, | |
861 | }; | |
862 | ||
e23e7a14 | 863 | static int sis_pcm_create(struct sis7019 *sis) |
175859bf DD |
864 | { |
865 | struct snd_pcm *pcm; | |
866 | int rc; | |
867 | ||
868 | /* We have 64 voices, and the driver currently records from | |
869 | * only one channel, though that could change in the future. | |
870 | */ | |
871 | rc = snd_pcm_new(sis->card, "SiS7019", 0, 64, 1, &pcm); | |
872 | if (rc) | |
873 | return rc; | |
874 | ||
875 | pcm->private_data = sis; | |
876 | strcpy(pcm->name, "SiS7019"); | |
877 | sis->pcm = pcm; | |
878 | ||
879 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &sis_playback_ops); | |
880 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &sis_capture_ops); | |
881 | ||
882 | /* Try to preallocate some memory, but it's not the end of the | |
883 | * world if this fails. | |
884 | */ | |
ff3eb3d5 TI |
885 | snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, |
886 | &sis->pci->dev, 64*1024, 128*1024); | |
175859bf DD |
887 | |
888 | return 0; | |
889 | } | |
890 | ||
891 | static unsigned short sis_ac97_rw(struct sis7019 *sis, int codec, u32 cmd) | |
892 | { | |
893 | unsigned long io = sis->ioport; | |
894 | unsigned short val = 0xffff; | |
895 | u16 status; | |
896 | u16 rdy; | |
897 | int count; | |
3f76d984 | 898 | static const u16 codec_ready[3] = { |
175859bf DD |
899 | SIS_AC97_STATUS_CODEC_READY, |
900 | SIS_AC97_STATUS_CODEC2_READY, | |
901 | SIS_AC97_STATUS_CODEC3_READY, | |
902 | }; | |
903 | ||
904 | rdy = codec_ready[codec]; | |
905 | ||
906 | ||
907 | /* Get the AC97 semaphore -- software first, so we don't spin | |
908 | * pounding out IO reads on the hardware semaphore... | |
909 | */ | |
910 | mutex_lock(&sis->ac97_mutex); | |
911 | ||
912 | count = 0xffff; | |
913 | while ((inw(io + SIS_AC97_SEMA) & SIS_AC97_SEMA_BUSY) && --count) | |
914 | udelay(1); | |
915 | ||
916 | if (!count) | |
917 | goto timeout; | |
918 | ||
919 | /* ... and wait for any outstanding commands to complete ... | |
920 | */ | |
921 | count = 0xffff; | |
922 | do { | |
923 | status = inw(io + SIS_AC97_STATUS); | |
924 | if ((status & rdy) && !(status & SIS_AC97_STATUS_BUSY)) | |
925 | break; | |
926 | ||
927 | udelay(1); | |
928 | } while (--count); | |
929 | ||
930 | if (!count) | |
931 | goto timeout_sema; | |
932 | ||
933 | /* ... before sending our command and waiting for it to finish ... | |
934 | */ | |
935 | outl(cmd, io + SIS_AC97_CMD); | |
936 | udelay(10); | |
937 | ||
938 | count = 0xffff; | |
939 | while ((inw(io + SIS_AC97_STATUS) & SIS_AC97_STATUS_BUSY) && --count) | |
940 | udelay(1); | |
941 | ||
942 | /* ... and reading the results (if any). | |
943 | */ | |
944 | val = inl(io + SIS_AC97_CMD) >> 16; | |
945 | ||
946 | timeout_sema: | |
947 | outl(SIS_AC97_SEMA_RELEASE, io + SIS_AC97_SEMA); | |
948 | timeout: | |
949 | mutex_unlock(&sis->ac97_mutex); | |
950 | ||
951 | if (!count) { | |
70597851 | 952 | dev_err(&sis->pci->dev, "ac97 codec %d timeout cmd 0x%08x\n", |
175859bf DD |
953 | codec, cmd); |
954 | } | |
955 | ||
956 | return val; | |
957 | } | |
958 | ||
959 | static void sis_ac97_write(struct snd_ac97 *ac97, unsigned short reg, | |
960 | unsigned short val) | |
961 | { | |
3f76d984 | 962 | static const u32 cmd[3] = { |
175859bf DD |
963 | SIS_AC97_CMD_CODEC_WRITE, |
964 | SIS_AC97_CMD_CODEC2_WRITE, | |
965 | SIS_AC97_CMD_CODEC3_WRITE, | |
966 | }; | |
967 | sis_ac97_rw(ac97->private_data, ac97->num, | |
968 | (val << 16) | (reg << 8) | cmd[ac97->num]); | |
969 | } | |
970 | ||
971 | static unsigned short sis_ac97_read(struct snd_ac97 *ac97, unsigned short reg) | |
972 | { | |
3f76d984 | 973 | static const u32 cmd[3] = { |
175859bf DD |
974 | SIS_AC97_CMD_CODEC_READ, |
975 | SIS_AC97_CMD_CODEC2_READ, | |
976 | SIS_AC97_CMD_CODEC3_READ, | |
977 | }; | |
978 | return sis_ac97_rw(ac97->private_data, ac97->num, | |
979 | (reg << 8) | cmd[ac97->num]); | |
980 | } | |
981 | ||
e23e7a14 | 982 | static int sis_mixer_create(struct sis7019 *sis) |
175859bf DD |
983 | { |
984 | struct snd_ac97_bus *bus; | |
985 | struct snd_ac97_template ac97; | |
51055da5 | 986 | static const struct snd_ac97_bus_ops ops = { |
175859bf DD |
987 | .write = sis_ac97_write, |
988 | .read = sis_ac97_read, | |
989 | }; | |
990 | int rc; | |
991 | ||
992 | memset(&ac97, 0, sizeof(ac97)); | |
993 | ac97.private_data = sis; | |
994 | ||
995 | rc = snd_ac97_bus(sis->card, 0, &ops, NULL, &bus); | |
996 | if (!rc && sis->codecs_present & SIS_PRIMARY_CODEC_PRESENT) | |
997 | rc = snd_ac97_mixer(bus, &ac97, &sis->ac97[0]); | |
998 | ac97.num = 1; | |
999 | if (!rc && (sis->codecs_present & SIS_SECONDARY_CODEC_PRESENT)) | |
1000 | rc = snd_ac97_mixer(bus, &ac97, &sis->ac97[1]); | |
1001 | ac97.num = 2; | |
1002 | if (!rc && (sis->codecs_present & SIS_TERTIARY_CODEC_PRESENT)) | |
1003 | rc = snd_ac97_mixer(bus, &ac97, &sis->ac97[2]); | |
1004 | ||
1005 | /* If we return an error here, then snd_card_free() should | |
1006 | * free up any ac97 codecs that got created, as well as the bus. | |
1007 | */ | |
1008 | return rc; | |
1009 | } | |
1010 | ||
1011 | static void sis_free_suspend(struct sis7019 *sis) | |
1012 | { | |
1013 | int i; | |
1014 | ||
1015 | for (i = 0; i < SIS_SUSPEND_PAGES; i++) | |
1016 | kfree(sis->suspend_state[i]); | |
1017 | } | |
1018 | ||
1019 | static int sis_chip_free(struct sis7019 *sis) | |
1020 | { | |
1021 | /* Reset the chip, and disable all interrputs. | |
1022 | */ | |
1023 | outl(SIS_GCR_SOFTWARE_RESET, sis->ioport + SIS_GCR); | |
08b45098 | 1024 | udelay(25); |
175859bf DD |
1025 | outl(0, sis->ioport + SIS_GCR); |
1026 | outl(0, sis->ioport + SIS_GIER); | |
1027 | ||
1028 | /* Now, free everything we allocated. | |
1029 | */ | |
1030 | if (sis->irq >= 0) | |
1031 | free_irq(sis->irq, sis); | |
1032 | ||
ff6defa6 | 1033 | iounmap(sis->ioaddr); |
175859bf DD |
1034 | pci_release_regions(sis->pci); |
1035 | pci_disable_device(sis->pci); | |
175859bf DD |
1036 | sis_free_suspend(sis); |
1037 | return 0; | |
1038 | } | |
1039 | ||
1040 | static int sis_dev_free(struct snd_device *dev) | |
1041 | { | |
1042 | struct sis7019 *sis = dev->device_data; | |
1043 | return sis_chip_free(sis); | |
1044 | } | |
1045 | ||
1046 | static int sis_chip_init(struct sis7019 *sis) | |
1047 | { | |
1048 | unsigned long io = sis->ioport; | |
1049 | void __iomem *ioaddr = sis->ioaddr; | |
fc084e0b | 1050 | unsigned long timeout; |
175859bf DD |
1051 | u16 status; |
1052 | int count; | |
1053 | int i; | |
1054 | ||
1055 | /* Reset the audio controller | |
1056 | */ | |
1057 | outl(SIS_GCR_SOFTWARE_RESET, io + SIS_GCR); | |
08b45098 | 1058 | udelay(25); |
175859bf DD |
1059 | outl(0, io + SIS_GCR); |
1060 | ||
1061 | /* Get the AC-link semaphore, and reset the codecs | |
1062 | */ | |
1063 | count = 0xffff; | |
1064 | while ((inw(io + SIS_AC97_SEMA) & SIS_AC97_SEMA_BUSY) && --count) | |
1065 | udelay(1); | |
1066 | ||
1067 | if (!count) | |
1068 | return -EIO; | |
1069 | ||
1070 | outl(SIS_AC97_CMD_CODEC_COLD_RESET, io + SIS_AC97_CMD); | |
08b45098 | 1071 | udelay(250); |
175859bf DD |
1072 | |
1073 | count = 0xffff; | |
1074 | while ((inw(io + SIS_AC97_STATUS) & SIS_AC97_STATUS_BUSY) && --count) | |
1075 | udelay(1); | |
1076 | ||
fc084e0b DD |
1077 | /* Command complete, we can let go of the semaphore now. |
1078 | */ | |
1079 | outl(SIS_AC97_SEMA_RELEASE, io + SIS_AC97_SEMA); | |
1080 | if (!count) | |
1081 | return -EIO; | |
1082 | ||
175859bf | 1083 | /* Now that we've finished the reset, find out what's attached. |
fc084e0b DD |
1084 | * There are some codec/board combinations that take an extremely |
1085 | * long time to come up. 350+ ms has been observed in the field, | |
1086 | * so we'll give them up to 500ms. | |
175859bf | 1087 | */ |
fc084e0b DD |
1088 | sis->codecs_present = 0; |
1089 | timeout = msecs_to_jiffies(500) + jiffies; | |
1090 | while (time_before_eq(jiffies, timeout)) { | |
1091 | status = inl(io + SIS_AC97_STATUS); | |
1092 | if (status & SIS_AC97_STATUS_CODEC_READY) | |
1093 | sis->codecs_present |= SIS_PRIMARY_CODEC_PRESENT; | |
1094 | if (status & SIS_AC97_STATUS_CODEC2_READY) | |
1095 | sis->codecs_present |= SIS_SECONDARY_CODEC_PRESENT; | |
1096 | if (status & SIS_AC97_STATUS_CODEC3_READY) | |
1097 | sis->codecs_present |= SIS_TERTIARY_CODEC_PRESENT; | |
1098 | ||
1099 | if (sis->codecs_present == codecs) | |
1100 | break; | |
1101 | ||
1102 | msleep(1); | |
1103 | } | |
1104 | ||
1105 | /* All done, check for errors. | |
175859bf | 1106 | */ |
fc084e0b | 1107 | if (!sis->codecs_present) { |
70597851 | 1108 | dev_err(&sis->pci->dev, "could not find any codecs\n"); |
175859bf | 1109 | return -EIO; |
fc084e0b DD |
1110 | } |
1111 | ||
1112 | if (sis->codecs_present != codecs) { | |
70597851 DD |
1113 | dev_warn(&sis->pci->dev, "missing codecs, found %0x, expected %0x\n", |
1114 | sis->codecs_present, codecs); | |
fc084e0b | 1115 | } |
175859bf DD |
1116 | |
1117 | /* Let the hardware know that the audio driver is alive, | |
1118 | * and enable PCM slots on the AC-link for L/R playback (3 & 4) and | |
1119 | * record channels. We're going to want to use Variable Rate Audio | |
1120 | * for recording, to avoid needlessly resampling from 48kHZ. | |
1121 | */ | |
1122 | outl(SIS_AC97_CONF_AUDIO_ALIVE, io + SIS_AC97_CONF); | |
1123 | outl(SIS_AC97_CONF_AUDIO_ALIVE | SIS_AC97_CONF_PCM_LR_ENABLE | | |
1124 | SIS_AC97_CONF_PCM_CAP_MIC_ENABLE | | |
1125 | SIS_AC97_CONF_PCM_CAP_LR_ENABLE | | |
1126 | SIS_AC97_CONF_CODEC_VRA_ENABLE, io + SIS_AC97_CONF); | |
1127 | ||
1128 | /* All AC97 PCM slots should be sourced from sub-mixer 0. | |
1129 | */ | |
1130 | outl(0, io + SIS_AC97_PSR); | |
1131 | ||
1132 | /* There is only one valid DMA setup for a PCI environment. | |
1133 | */ | |
1134 | outl(SIS_DMA_CSR_PCI_SETTINGS, io + SIS_DMA_CSR); | |
1135 | ||
25985edc | 1136 | /* Reset the synchronization groups for all of the channels |
b3834be5 | 1137 | * to be asynchronous. If we start doing SPDIF or 5.1 sound, etc. |
175859bf DD |
1138 | * we'll need to change how we handle these. Until then, we just |
1139 | * assign sub-mixer 0 to all playback channels, and avoid any | |
1140 | * attenuation on the audio. | |
1141 | */ | |
1142 | outl(0, io + SIS_PLAY_SYNC_GROUP_A); | |
1143 | outl(0, io + SIS_PLAY_SYNC_GROUP_B); | |
1144 | outl(0, io + SIS_PLAY_SYNC_GROUP_C); | |
1145 | outl(0, io + SIS_PLAY_SYNC_GROUP_D); | |
1146 | outl(0, io + SIS_MIXER_SYNC_GROUP); | |
1147 | ||
1148 | for (i = 0; i < 64; i++) { | |
1149 | writel(i, SIS_MIXER_START_ADDR(ioaddr, i)); | |
1150 | writel(SIS_MIXER_RIGHT_NO_ATTEN | SIS_MIXER_LEFT_NO_ATTEN | | |
1151 | SIS_MIXER_DEST_0, SIS_MIXER_ADDR(ioaddr, i)); | |
1152 | } | |
1153 | ||
1154 | /* Don't attenuate any audio set for the wave amplifier. | |
1155 | * | |
1156 | * FIXME: Maximum attenuation is set for the music amp, which will | |
1157 | * need to change if we start using the synth engine. | |
1158 | */ | |
1159 | outl(0xffff0000, io + SIS_WEVCR); | |
1160 | ||
1161 | /* Ensure that the wave engine is in normal operating mode. | |
1162 | */ | |
1163 | outl(0, io + SIS_WECCR); | |
1164 | ||
1165 | /* Go ahead and enable the DMA interrupts. They won't go live | |
1166 | * until we start a channel. | |
1167 | */ | |
1168 | outl(SIS_GIER_AUDIO_PLAY_DMA_IRQ_ENABLE | | |
1169 | SIS_GIER_AUDIO_RECORD_DMA_IRQ_ENABLE, io + SIS_GIER); | |
1170 | ||
1171 | return 0; | |
1172 | } | |
1173 | ||
c7561cd8 | 1174 | #ifdef CONFIG_PM_SLEEP |
68cb2b55 | 1175 | static int sis_suspend(struct device *dev) |
175859bf | 1176 | { |
68cb2b55 | 1177 | struct snd_card *card = dev_get_drvdata(dev); |
175859bf DD |
1178 | struct sis7019 *sis = card->private_data; |
1179 | void __iomem *ioaddr = sis->ioaddr; | |
1180 | int i; | |
1181 | ||
1182 | snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); | |
175859bf DD |
1183 | if (sis->codecs_present & SIS_PRIMARY_CODEC_PRESENT) |
1184 | snd_ac97_suspend(sis->ac97[0]); | |
1185 | if (sis->codecs_present & SIS_SECONDARY_CODEC_PRESENT) | |
1186 | snd_ac97_suspend(sis->ac97[1]); | |
1187 | if (sis->codecs_present & SIS_TERTIARY_CODEC_PRESENT) | |
1188 | snd_ac97_suspend(sis->ac97[2]); | |
1189 | ||
1190 | /* snd_pcm_suspend_all() stopped all channels, so we're quiescent. | |
1191 | */ | |
1192 | if (sis->irq >= 0) { | |
175859bf DD |
1193 | free_irq(sis->irq, sis); |
1194 | sis->irq = -1; | |
1195 | } | |
1196 | ||
1197 | /* Save the internal state away | |
1198 | */ | |
1199 | for (i = 0; i < 4; i++) { | |
1200 | memcpy_fromio(sis->suspend_state[i], ioaddr, 4096); | |
1201 | ioaddr += 4096; | |
1202 | } | |
1203 | ||
175859bf DD |
1204 | return 0; |
1205 | } | |
1206 | ||
68cb2b55 | 1207 | static int sis_resume(struct device *dev) |
175859bf | 1208 | { |
68cb2b55 TI |
1209 | struct pci_dev *pci = to_pci_dev(dev); |
1210 | struct snd_card *card = dev_get_drvdata(dev); | |
175859bf DD |
1211 | struct sis7019 *sis = card->private_data; |
1212 | void __iomem *ioaddr = sis->ioaddr; | |
1213 | int i; | |
1214 | ||
175859bf | 1215 | if (sis_chip_init(sis)) { |
70597851 | 1216 | dev_err(&pci->dev, "unable to re-init controller\n"); |
175859bf DD |
1217 | goto error; |
1218 | } | |
1219 | ||
88e24c3a | 1220 | if (request_irq(pci->irq, sis_interrupt, IRQF_SHARED, |
934c2b6d | 1221 | KBUILD_MODNAME, sis)) { |
70597851 | 1222 | dev_err(&pci->dev, "unable to regain IRQ %d\n", pci->irq); |
175859bf DD |
1223 | goto error; |
1224 | } | |
1225 | ||
1226 | /* Restore saved state, then clear out the page we use for the | |
1227 | * silence buffer. | |
1228 | */ | |
1229 | for (i = 0; i < 4; i++) { | |
1230 | memcpy_toio(ioaddr, sis->suspend_state[i], 4096); | |
1231 | ioaddr += 4096; | |
1232 | } | |
1233 | ||
1234 | memset(sis->suspend_state[0], 0, 4096); | |
1235 | ||
1236 | sis->irq = pci->irq; | |
175859bf DD |
1237 | |
1238 | if (sis->codecs_present & SIS_PRIMARY_CODEC_PRESENT) | |
1239 | snd_ac97_resume(sis->ac97[0]); | |
1240 | if (sis->codecs_present & SIS_SECONDARY_CODEC_PRESENT) | |
1241 | snd_ac97_resume(sis->ac97[1]); | |
1242 | if (sis->codecs_present & SIS_TERTIARY_CODEC_PRESENT) | |
1243 | snd_ac97_resume(sis->ac97[2]); | |
1244 | ||
1245 | snd_power_change_state(card, SNDRV_CTL_POWER_D0); | |
1246 | return 0; | |
1247 | ||
1248 | error: | |
1249 | snd_card_disconnect(card); | |
1250 | return -EIO; | |
1251 | } | |
68cb2b55 TI |
1252 | |
1253 | static SIMPLE_DEV_PM_OPS(sis_pm, sis_suspend, sis_resume); | |
1254 | #define SIS_PM_OPS &sis_pm | |
1255 | #else | |
1256 | #define SIS_PM_OPS NULL | |
c7561cd8 | 1257 | #endif /* CONFIG_PM_SLEEP */ |
175859bf DD |
1258 | |
1259 | static int sis_alloc_suspend(struct sis7019 *sis) | |
1260 | { | |
1261 | int i; | |
1262 | ||
1263 | /* We need 16K to store the internal wave engine state during a | |
1264 | * suspend, but we don't need it to be contiguous, so play nice | |
1265 | * with the memory system. We'll also use this area for a silence | |
1266 | * buffer. | |
1267 | */ | |
1268 | for (i = 0; i < SIS_SUSPEND_PAGES; i++) { | |
1269 | sis->suspend_state[i] = kmalloc(4096, GFP_KERNEL); | |
1270 | if (!sis->suspend_state[i]) | |
1271 | return -ENOMEM; | |
1272 | } | |
1273 | memset(sis->suspend_state[0], 0, 4096); | |
1274 | ||
1275 | return 0; | |
1276 | } | |
1277 | ||
e23e7a14 BP |
1278 | static int sis_chip_create(struct snd_card *card, |
1279 | struct pci_dev *pci) | |
175859bf DD |
1280 | { |
1281 | struct sis7019 *sis = card->private_data; | |
1282 | struct voice *voice; | |
efb0ad25 | 1283 | static const struct snd_device_ops ops = { |
175859bf DD |
1284 | .dev_free = sis_dev_free, |
1285 | }; | |
1286 | int rc; | |
1287 | int i; | |
1288 | ||
1289 | rc = pci_enable_device(pci); | |
1290 | if (rc) | |
1291 | goto error_out; | |
1292 | ||
412b979c | 1293 | rc = dma_set_mask(&pci->dev, DMA_BIT_MASK(30)); |
8b1dacb6 | 1294 | if (rc < 0) { |
70597851 | 1295 | dev_err(&pci->dev, "architecture does not support 30-bit PCI busmaster DMA"); |
175859bf DD |
1296 | goto error_out_enabled; |
1297 | } | |
1298 | ||
1299 | memset(sis, 0, sizeof(*sis)); | |
1300 | mutex_init(&sis->ac97_mutex); | |
1301 | spin_lock_init(&sis->voice_lock); | |
1302 | sis->card = card; | |
1303 | sis->pci = pci; | |
1304 | sis->irq = -1; | |
1305 | sis->ioport = pci_resource_start(pci, 0); | |
1306 | ||
1307 | rc = pci_request_regions(pci, "SiS7019"); | |
1308 | if (rc) { | |
70597851 | 1309 | dev_err(&pci->dev, "unable request regions\n"); |
175859bf DD |
1310 | goto error_out_enabled; |
1311 | } | |
1312 | ||
1313 | rc = -EIO; | |
4bdc0d67 | 1314 | sis->ioaddr = ioremap(pci_resource_start(pci, 1), 0x4000); |
175859bf | 1315 | if (!sis->ioaddr) { |
70597851 | 1316 | dev_err(&pci->dev, "unable to remap MMIO, aborting\n"); |
175859bf DD |
1317 | goto error_out_cleanup; |
1318 | } | |
1319 | ||
1320 | rc = sis_alloc_suspend(sis); | |
1321 | if (rc < 0) { | |
70597851 | 1322 | dev_err(&pci->dev, "unable to allocate state storage\n"); |
175859bf DD |
1323 | goto error_out_cleanup; |
1324 | } | |
1325 | ||
1326 | rc = sis_chip_init(sis); | |
1327 | if (rc) | |
1328 | goto error_out_cleanup; | |
1329 | ||
ae970eb4 JL |
1330 | rc = request_irq(pci->irq, sis_interrupt, IRQF_SHARED, KBUILD_MODNAME, |
1331 | sis); | |
1332 | if (rc) { | |
70597851 | 1333 | dev_err(&pci->dev, "unable to allocate irq %d\n", sis->irq); |
175859bf DD |
1334 | goto error_out_cleanup; |
1335 | } | |
1336 | ||
1337 | sis->irq = pci->irq; | |
39b77268 | 1338 | card->sync_irq = sis->irq; |
175859bf DD |
1339 | pci_set_master(pci); |
1340 | ||
1341 | for (i = 0; i < 64; i++) { | |
1342 | voice = &sis->voices[i]; | |
1343 | voice->num = i; | |
1344 | voice->ctrl_base = SIS_PLAY_DMA_ADDR(sis->ioaddr, i); | |
1345 | voice->wave_base = SIS_WAVE_ADDR(sis->ioaddr, i); | |
1346 | } | |
1347 | ||
1348 | voice = &sis->capture_voice; | |
1349 | voice->flags = VOICE_CAPTURE; | |
1350 | voice->num = SIS_CAPTURE_CHAN_AC97_PCM_IN; | |
1351 | voice->ctrl_base = SIS_CAPTURE_DMA_ADDR(sis->ioaddr, voice->num); | |
1352 | ||
1353 | rc = snd_device_new(card, SNDRV_DEV_LOWLEVEL, sis, &ops); | |
1354 | if (rc) | |
1355 | goto error_out_cleanup; | |
1356 | ||
175859bf DD |
1357 | return 0; |
1358 | ||
1359 | error_out_cleanup: | |
1360 | sis_chip_free(sis); | |
1361 | ||
1362 | error_out_enabled: | |
1363 | pci_disable_device(pci); | |
1364 | ||
1365 | error_out: | |
1366 | return rc; | |
1367 | } | |
1368 | ||
e23e7a14 BP |
1369 | static int snd_sis7019_probe(struct pci_dev *pci, |
1370 | const struct pci_device_id *pci_id) | |
175859bf DD |
1371 | { |
1372 | struct snd_card *card; | |
1373 | struct sis7019 *sis; | |
1374 | int rc; | |
1375 | ||
1376 | rc = -ENOENT; | |
1377 | if (!enable) | |
1378 | goto error_out; | |
1379 | ||
fc084e0b DD |
1380 | /* The user can specify which codecs should be present so that we |
1381 | * can wait for them to show up if they are slow to recover from | |
1382 | * the AC97 cold reset. We default to a single codec, the primary. | |
1383 | * | |
1384 | * We assume that SIS_PRIMARY_*_PRESENT matches bits 0-2. | |
1385 | */ | |
1386 | codecs &= SIS_PRIMARY_CODEC_PRESENT | SIS_SECONDARY_CODEC_PRESENT | | |
1387 | SIS_TERTIARY_CODEC_PRESENT; | |
1388 | if (!codecs) | |
1389 | codecs = SIS_PRIMARY_CODEC_PRESENT; | |
1390 | ||
60c5772b TI |
1391 | rc = snd_card_new(&pci->dev, index, id, THIS_MODULE, |
1392 | sizeof(*sis), &card); | |
e58de7ba | 1393 | if (rc < 0) |
175859bf DD |
1394 | goto error_out; |
1395 | ||
1396 | strcpy(card->driver, "SiS7019"); | |
1397 | strcpy(card->shortname, "SiS7019"); | |
1398 | rc = sis_chip_create(card, pci); | |
1399 | if (rc) | |
1400 | goto card_error_out; | |
1401 | ||
1402 | sis = card->private_data; | |
1403 | ||
1404 | rc = sis_mixer_create(sis); | |
1405 | if (rc) | |
1406 | goto card_error_out; | |
1407 | ||
1408 | rc = sis_pcm_create(sis); | |
1409 | if (rc) | |
1410 | goto card_error_out; | |
1411 | ||
1412 | snprintf(card->longname, sizeof(card->longname), | |
1413 | "%s Audio Accelerator with %s at 0x%lx, irq %d", | |
1414 | card->shortname, snd_ac97_get_short_name(sis->ac97[0]), | |
1415 | sis->ioport, sis->irq); | |
1416 | ||
1417 | rc = snd_card_register(card); | |
1418 | if (rc) | |
1419 | goto card_error_out; | |
1420 | ||
1421 | pci_set_drvdata(pci, card); | |
1422 | return 0; | |
1423 | ||
1424 | card_error_out: | |
1425 | snd_card_free(card); | |
1426 | ||
1427 | error_out: | |
1428 | return rc; | |
1429 | } | |
1430 | ||
e23e7a14 | 1431 | static void snd_sis7019_remove(struct pci_dev *pci) |
175859bf DD |
1432 | { |
1433 | snd_card_free(pci_get_drvdata(pci)); | |
175859bf DD |
1434 | } |
1435 | ||
1436 | static struct pci_driver sis7019_driver = { | |
3733e424 | 1437 | .name = KBUILD_MODNAME, |
175859bf DD |
1438 | .id_table = snd_sis7019_ids, |
1439 | .probe = snd_sis7019_probe, | |
e23e7a14 | 1440 | .remove = snd_sis7019_remove, |
68cb2b55 TI |
1441 | .driver = { |
1442 | .pm = SIS_PM_OPS, | |
1443 | }, | |
175859bf DD |
1444 | }; |
1445 | ||
e9f66d9b | 1446 | module_pci_driver(sis7019_driver); |