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1da177e4 LT |
1 | /* |
2 | * ALI ali5455 and friends ICH driver for Linux | |
3 | * LEI HU <Lei_Hu@ali.com.tw> | |
4 | * | |
5 | * Built from: | |
6 | * drivers/sound/i810_audio | |
7 | * | |
8 | * The ALi 5455 is similar but not quite identical to the Intel ICH | |
9 | * series of controllers. Its easier to keep the driver separated from | |
10 | * the i810 driver. | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or | |
15 | * (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
25 | * | |
26 | * | |
27 | * ALi 5455 theory of operation | |
28 | * | |
29 | * The chipset provides three DMA channels that talk to an AC97 | |
30 | * CODEC (AC97 is a digital/analog mixer standard). At its simplest | |
31 | * you get 48Khz audio with basic volume and mixer controls. At the | |
32 | * best you get rate adaption in the codec. We set the card up so | |
33 | * that we never take completion interrupts but instead keep the card | |
34 | * chasing its tail around a ring buffer. This is needed for mmap | |
35 | * mode audio and happens to work rather well for non-mmap modes too. | |
36 | * | |
37 | * The board has one output channel for PCM audio (supported) and | |
38 | * a stereo line in and mono microphone input. Again these are normally | |
39 | * locked to 48Khz only. Right now recording is not finished. | |
40 | * | |
41 | * There is no midi support, no synth support. Use timidity. To get | |
42 | * esd working you need to use esd -r 48000 as it won't probe 48KHz | |
43 | * by default. mpg123 can't handle 48Khz only audio so use xmms. | |
44 | * | |
45 | * If you need to force a specific rate set the clocking= option | |
46 | * | |
47 | */ | |
48 | ||
49 | #include <linux/module.h> | |
50 | #include <linux/string.h> | |
51 | #include <linux/ctype.h> | |
52 | #include <linux/ioport.h> | |
53 | #include <linux/sched.h> | |
54 | #include <linux/delay.h> | |
55 | #include <linux/sound.h> | |
56 | #include <linux/slab.h> | |
57 | #include <linux/soundcard.h> | |
58 | #include <linux/pci.h> | |
59 | #include <asm/io.h> | |
60 | #include <asm/dma.h> | |
61 | #include <linux/init.h> | |
62 | #include <linux/poll.h> | |
63 | #include <linux/spinlock.h> | |
64 | #include <linux/smp_lock.h> | |
65 | #include <linux/ac97_codec.h> | |
66 | #include <linux/interrupt.h> | |
67 | #include <asm/uaccess.h> | |
68 | ||
69 | #ifndef PCI_DEVICE_ID_ALI_5455 | |
70 | #define PCI_DEVICE_ID_ALI_5455 0x5455 | |
71 | #endif | |
72 | ||
73 | #ifndef PCI_VENDOR_ID_ALI | |
74 | #define PCI_VENDOR_ID_ALI 0x10b9 | |
75 | #endif | |
76 | ||
77 | static int strict_clocking = 0; | |
78 | static unsigned int clocking = 0; | |
79 | static unsigned int codec_pcmout_share_spdif_locked = 0; | |
80 | static unsigned int codec_independent_spdif_locked = 0; | |
81 | static unsigned int controller_pcmout_share_spdif_locked = 0; | |
82 | static unsigned int controller_independent_spdif_locked = 0; | |
83 | static unsigned int globel = 0; | |
84 | ||
85 | #define ADC_RUNNING 1 | |
86 | #define DAC_RUNNING 2 | |
87 | #define CODEC_SPDIFOUT_RUNNING 8 | |
88 | #define CONTROLLER_SPDIFOUT_RUNNING 4 | |
89 | ||
90 | #define SPDIF_ENABLE_OUTPUT 4 /* bits 0,1 are PCM */ | |
91 | ||
92 | #define ALI5455_FMT_16BIT 1 | |
93 | #define ALI5455_FMT_STEREO 2 | |
94 | #define ALI5455_FMT_MASK 3 | |
95 | ||
96 | #define SPDIF_ON 0x0004 | |
97 | #define SURR_ON 0x0010 | |
98 | #define CENTER_LFE_ON 0x0020 | |
99 | #define VOL_MUTED 0x8000 | |
100 | ||
101 | ||
102 | #define ALI_SPDIF_OUT_CH_STATUS 0xbf | |
103 | /* the 810's array of pointers to data buffers */ | |
104 | ||
105 | struct sg_item { | |
106 | #define BUSADDR_MASK 0xFFFFFFFE | |
107 | u32 busaddr; | |
108 | #define CON_IOC 0x80000000 /* interrupt on completion */ | |
109 | #define CON_BUFPAD 0x40000000 /* pad underrun with last sample, else 0 */ | |
110 | #define CON_BUFLEN_MASK 0x0000ffff /* buffer length in samples */ | |
111 | u32 control; | |
112 | }; | |
113 | ||
114 | /* an instance of the ali channel */ | |
115 | #define SG_LEN 32 | |
116 | struct ali_channel { | |
117 | /* these sg guys should probably be allocated | |
118 | separately as nocache. Must be 8 byte aligned */ | |
119 | struct sg_item sg[SG_LEN]; /* 32*8 */ | |
120 | u32 offset; /* 4 */ | |
121 | u32 port; /* 4 */ | |
122 | u32 used; | |
123 | u32 num; | |
124 | }; | |
125 | ||
126 | /* | |
127 | * we have 3 separate dma engines. pcm in, pcm out, and mic. | |
128 | * each dma engine has controlling registers. These goofy | |
129 | * names are from the datasheet, but make it easy to write | |
130 | * code while leafing through it. | |
131 | */ | |
132 | ||
133 | #define ENUM_ENGINE(PRE,DIG) \ | |
134 | enum { \ | |
135 | PRE##_BDBAR = 0x##DIG##0, /* Buffer Descriptor list Base Address */ \ | |
136 | PRE##_CIV = 0x##DIG##4, /* Current Index Value */ \ | |
137 | PRE##_LVI = 0x##DIG##5, /* Last Valid Index */ \ | |
138 | PRE##_SR = 0x##DIG##6, /* Status Register */ \ | |
139 | PRE##_PICB = 0x##DIG##8, /* Position In Current Buffer */ \ | |
140 | PRE##_CR = 0x##DIG##b /* Control Register */ \ | |
141 | } | |
142 | ||
143 | ENUM_ENGINE(OFF, 0); /* Offsets */ | |
144 | ENUM_ENGINE(PI, 4); /* PCM In */ | |
145 | ENUM_ENGINE(PO, 5); /* PCM Out */ | |
146 | ENUM_ENGINE(MC, 6); /* Mic In */ | |
147 | ENUM_ENGINE(CODECSPDIFOUT, 7); /* CODEC SPDIF OUT */ | |
148 | ENUM_ENGINE(CONTROLLERSPDIFIN, A); /* CONTROLLER SPDIF In */ | |
149 | ENUM_ENGINE(CONTROLLERSPDIFOUT, B); /* CONTROLLER SPDIF OUT */ | |
150 | ||
151 | ||
152 | enum { | |
153 | ALI_SCR = 0x00, /* System Control Register */ | |
154 | ALI_SSR = 0x04, /* System Status Register */ | |
155 | ALI_DMACR = 0x08, /* DMA Control Register */ | |
156 | ALI_FIFOCR1 = 0x0c, /* FIFO Control Register 1 */ | |
157 | ALI_INTERFACECR = 0x10, /* Interface Control Register */ | |
158 | ALI_INTERRUPTCR = 0x14, /* Interrupt control Register */ | |
159 | ALI_INTERRUPTSR = 0x18, /* Interrupt Status Register */ | |
160 | ALI_FIFOCR2 = 0x1c, /* FIFO Control Register 2 */ | |
161 | ALI_CPR = 0x20, /* Command Port Register */ | |
162 | ALI_SPR = 0x24, /* Status Port Register */ | |
163 | ALI_FIFOCR3 = 0x2c, /* FIFO Control Register 3 */ | |
164 | ALI_TTSR = 0x30, /* Transmit Tag Slot Register */ | |
165 | ALI_RTSR = 0x34, /* Receive Tag Slot Register */ | |
166 | ALI_CSPSR = 0x38, /* Command/Status Port Status Register */ | |
167 | ALI_CAS = 0x3c, /* Codec Write Semaphore Register */ | |
168 | ALI_SPDIFCSR = 0xf8, /* spdif channel status register */ | |
169 | ALI_SPDIFICS = 0xfc /* spdif interface control/status */ | |
170 | }; | |
171 | ||
172 | // x-status register(x:pcm in ,pcm out, mic in,) | |
173 | /* interrupts for a dma engine */ | |
174 | #define DMA_INT_FIFO (1<<4) /* fifo under/over flow */ | |
175 | #define DMA_INT_COMPLETE (1<<3) /* buffer read/write complete and ioc set */ | |
176 | #define DMA_INT_LVI (1<<2) /* last valid done */ | |
177 | #define DMA_INT_CELV (1<<1) /* last valid is current */ | |
178 | #define DMA_INT_DCH (1) /* DMA Controller Halted (happens on LVI interrupts) */ //not eqult intel | |
179 | #define DMA_INT_MASK (DMA_INT_FIFO|DMA_INT_COMPLETE|DMA_INT_LVI) | |
180 | ||
181 | /* interrupts for the whole chip */// by interrupt status register finish | |
182 | ||
183 | #define INT_SPDIFOUT (1<<23) /* controller spdif out INTERRUPT */ | |
184 | #define INT_SPDIFIN (1<<22) | |
185 | #define INT_CODECSPDIFOUT (1<<19) | |
186 | #define INT_MICIN (1<<18) | |
187 | #define INT_PCMOUT (1<<17) | |
188 | #define INT_PCMIN (1<<16) | |
189 | #define INT_CPRAIS (1<<7) | |
190 | #define INT_SPRAIS (1<<5) | |
191 | #define INT_GPIO (1<<1) | |
192 | #define INT_MASK (INT_SPDIFOUT|INT_CODECSPDIFOUT|INT_MICIN|INT_PCMOUT|INT_PCMIN) | |
193 | ||
194 | #define DRIVER_VERSION "0.02ac" | |
195 | ||
196 | /* magic numbers to protect our data structures */ | |
197 | #define ALI5455_CARD_MAGIC 0x5072696E /* "Prin" */ | |
198 | #define ALI5455_STATE_MAGIC 0x63657373 /* "cess" */ | |
199 | #define ALI5455_DMA_MASK 0xffffffff /* DMA buffer mask for pci_alloc_consist */ | |
200 | #define NR_HW_CH 5 //I think 5 channel | |
201 | ||
202 | /* maxinum number of AC97 codecs connected, AC97 2.0 defined 4 */ | |
203 | #define NR_AC97 2 | |
204 | ||
205 | /* Please note that an 8bit mono stream is not valid on this card, you must have a 16bit */ | |
206 | /* stream at a minimum for this card to be happy */ | |
207 | static const unsigned sample_size[] = { 1, 2, 2, 4 }; | |
208 | /* Samples are 16bit values, so we are shifting to a word, not to a byte, hence shift */ | |
209 | /* values are one less than might be expected */ | |
210 | static const unsigned sample_shift[] = { -1, 0, 0, 1 }; | |
211 | ||
212 | #define ALI5455 | |
213 | static char *card_names[] = { | |
214 | "ALI 5455" | |
215 | }; | |
216 | ||
217 | static struct pci_device_id ali_pci_tbl[] = { | |
218 | {PCI_VENDOR_ID_ALI, PCI_DEVICE_ID_ALI_5455, | |
219 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, ALI5455}, | |
220 | {0,} | |
221 | }; | |
222 | ||
223 | MODULE_DEVICE_TABLE(pci, ali_pci_tbl); | |
224 | ||
225 | #ifdef CONFIG_PM | |
226 | #define PM_SUSPENDED(card) (card->pm_suspended) | |
227 | #else | |
228 | #define PM_SUSPENDED(card) (0) | |
229 | #endif | |
230 | ||
231 | /* "software" or virtual channel, an instance of opened /dev/dsp */ | |
232 | struct ali_state { | |
233 | unsigned int magic; | |
234 | struct ali_card *card; /* Card info */ | |
235 | ||
236 | /* single open lock mechanism, only used for recording */ | |
237 | struct semaphore open_sem; | |
238 | wait_queue_head_t open_wait; | |
239 | ||
240 | /* file mode */ | |
241 | mode_t open_mode; | |
242 | ||
243 | /* virtual channel number */ | |
244 | int virt; | |
245 | ||
246 | #ifdef CONFIG_PM | |
247 | unsigned int pm_saved_dac_rate, pm_saved_adc_rate; | |
248 | #endif | |
249 | struct dmabuf { | |
250 | /* wave sample stuff */ | |
251 | unsigned int rate; | |
252 | unsigned char fmt, enable, trigger; | |
253 | ||
254 | /* hardware channel */ | |
255 | struct ali_channel *read_channel; | |
256 | struct ali_channel *write_channel; | |
257 | struct ali_channel *codec_spdifout_channel; | |
258 | struct ali_channel *controller_spdifout_channel; | |
259 | ||
260 | /* OSS buffer management stuff */ | |
261 | void *rawbuf; | |
262 | dma_addr_t dma_handle; | |
263 | unsigned buforder; | |
264 | unsigned numfrag; | |
265 | unsigned fragshift; | |
266 | ||
267 | /* our buffer acts like a circular ring */ | |
268 | unsigned hwptr; /* where dma last started, updated by update_ptr */ | |
269 | unsigned swptr; /* where driver last clear/filled, updated by read/write */ | |
270 | int count; /* bytes to be consumed or been generated by dma machine */ | |
271 | unsigned total_bytes; /* total bytes dmaed by hardware */ | |
272 | ||
273 | unsigned error; /* number of over/underruns */ | |
274 | wait_queue_head_t wait; /* put process on wait queue when no more space in buffer */ | |
275 | ||
276 | /* redundant, but makes calculations easier */ | |
277 | /* what the hardware uses */ | |
278 | unsigned dmasize; | |
279 | unsigned fragsize; | |
280 | unsigned fragsamples; | |
281 | ||
282 | /* what we tell the user to expect */ | |
283 | unsigned userfrags; | |
284 | unsigned userfragsize; | |
285 | ||
286 | /* OSS stuff */ | |
287 | unsigned mapped:1; | |
288 | unsigned ready:1; | |
289 | unsigned update_flag; | |
290 | unsigned ossfragsize; | |
291 | unsigned ossmaxfrags; | |
292 | unsigned subdivision; | |
293 | } dmabuf; | |
294 | }; | |
295 | ||
296 | ||
297 | struct ali_card { | |
298 | struct ali_channel channel[5]; | |
299 | unsigned int magic; | |
300 | ||
301 | /* We keep ali5455 cards in a linked list */ | |
302 | struct ali_card *next; | |
303 | ||
304 | /* The ali has a certain amount of cross channel interaction | |
305 | so we use a single per card lock */ | |
306 | spinlock_t lock; | |
307 | spinlock_t ac97_lock; | |
308 | ||
309 | /* PCI device stuff */ | |
310 | struct pci_dev *pci_dev; | |
311 | u16 pci_id; | |
312 | #ifdef CONFIG_PM | |
313 | u16 pm_suspended; | |
314 | int pm_saved_mixer_settings[SOUND_MIXER_NRDEVICES][NR_AC97]; | |
315 | #endif | |
316 | /* soundcore stuff */ | |
317 | int dev_audio; | |
318 | ||
319 | /* structures for abstraction of hardware facilities, codecs, banks and channels */ | |
320 | struct ac97_codec *ac97_codec[NR_AC97]; | |
321 | struct ali_state *states[NR_HW_CH]; | |
322 | ||
323 | u16 ac97_features; | |
324 | u16 ac97_status; | |
325 | u16 channels; | |
326 | ||
327 | /* hardware resources */ | |
328 | unsigned long iobase; | |
329 | ||
330 | u32 irq; | |
331 | ||
332 | /* Function support */ | |
333 | struct ali_channel *(*alloc_pcm_channel) (struct ali_card *); | |
334 | struct ali_channel *(*alloc_rec_pcm_channel) (struct ali_card *); | |
335 | struct ali_channel *(*alloc_rec_mic_channel) (struct ali_card *); | |
336 | struct ali_channel *(*alloc_codec_spdifout_channel) (struct ali_card *); | |
337 | struct ali_channel *(*alloc_controller_spdifout_channel) (struct ali_card *); | |
338 | void (*free_pcm_channel) (struct ali_card *, int chan); | |
339 | ||
340 | /* We have a *very* long init time possibly, so use this to block */ | |
341 | /* attempts to open our devices before we are ready (stops oops'es) */ | |
342 | int initializing; | |
343 | }; | |
344 | ||
345 | ||
346 | static struct ali_card *devs = NULL; | |
347 | ||
348 | static int ali_open_mixdev(struct inode *inode, struct file *file); | |
349 | static int ali_ioctl_mixdev(struct inode *inode, struct file *file, | |
350 | unsigned int cmd, unsigned long arg); | |
351 | static u16 ali_ac97_get(struct ac97_codec *dev, u8 reg); | |
352 | static void ali_ac97_set(struct ac97_codec *dev, u8 reg, u16 data); | |
353 | ||
354 | static struct ali_channel *ali_alloc_pcm_channel(struct ali_card *card) | |
355 | { | |
356 | if (card->channel[1].used == 1) | |
357 | return NULL; | |
358 | card->channel[1].used = 1; | |
359 | return &card->channel[1]; | |
360 | } | |
361 | ||
362 | static struct ali_channel *ali_alloc_rec_pcm_channel(struct ali_card *card) | |
363 | { | |
364 | if (card->channel[0].used == 1) | |
365 | return NULL; | |
366 | card->channel[0].used = 1; | |
367 | return &card->channel[0]; | |
368 | } | |
369 | ||
370 | static struct ali_channel *ali_alloc_rec_mic_channel(struct ali_card *card) | |
371 | { | |
372 | if (card->channel[2].used == 1) | |
373 | return NULL; | |
374 | card->channel[2].used = 1; | |
375 | return &card->channel[2]; | |
376 | } | |
377 | ||
378 | static struct ali_channel *ali_alloc_codec_spdifout_channel(struct ali_card *card) | |
379 | { | |
380 | if (card->channel[3].used == 1) | |
381 | return NULL; | |
382 | card->channel[3].used = 1; | |
383 | return &card->channel[3]; | |
384 | } | |
385 | ||
386 | static struct ali_channel *ali_alloc_controller_spdifout_channel(struct ali_card *card) | |
387 | { | |
388 | if (card->channel[4].used == 1) | |
389 | return NULL; | |
390 | card->channel[4].used = 1; | |
391 | return &card->channel[4]; | |
392 | } | |
393 | static void ali_free_pcm_channel(struct ali_card *card, int channel) | |
394 | { | |
395 | card->channel[channel].used = 0; | |
396 | } | |
397 | ||
398 | ||
399 | //add support codec spdif out | |
400 | static int ali_valid_spdif_rate(struct ac97_codec *codec, int rate) | |
401 | { | |
402 | unsigned long id = 0L; | |
403 | ||
404 | id = (ali_ac97_get(codec, AC97_VENDOR_ID1) << 16); | |
405 | id |= ali_ac97_get(codec, AC97_VENDOR_ID2) & 0xffff; | |
406 | switch (id) { | |
407 | case 0x41445361: /* AD1886 */ | |
408 | if (rate == 48000) { | |
409 | return 1; | |
410 | } | |
411 | break; | |
412 | case 0x414c4720: /* ALC650 */ | |
413 | if (rate == 48000) { | |
414 | return 1; | |
415 | } | |
416 | break; | |
417 | default: /* all other codecs, until we know otherwiae */ | |
418 | if (rate == 48000 || rate == 44100 || rate == 32000) { | |
419 | return 1; | |
420 | } | |
421 | break; | |
422 | } | |
423 | return (0); | |
424 | } | |
425 | ||
426 | /* ali_set_spdif_output | |
427 | * | |
428 | * Configure the S/PDIF output transmitter. When we turn on | |
429 | * S/PDIF, we turn off the analog output. This may not be | |
430 | * the right thing to do. | |
431 | * | |
432 | * Assumptions: | |
433 | * The DSP sample rate must already be set to a supported | |
434 | * S/PDIF rate (32kHz, 44.1kHz, or 48kHz) or we abort. | |
435 | */ | |
436 | static void ali_set_spdif_output(struct ali_state *state, int slots, | |
437 | int rate) | |
438 | { | |
439 | int vol; | |
440 | int aud_reg; | |
441 | struct ac97_codec *codec = state->card->ac97_codec[0]; | |
442 | ||
443 | if (!(state->card->ac97_features & 4)) { | |
444 | state->card->ac97_status &= ~SPDIF_ON; | |
445 | } else { | |
446 | if (slots == -1) { /* Turn off S/PDIF */ | |
447 | aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS); | |
448 | ali_ac97_set(codec, AC97_EXTENDED_STATUS, (aud_reg & ~AC97_EA_SPDIF)); | |
449 | ||
450 | /* If the volume wasn't muted before we turned on S/PDIF, unmute it */ | |
451 | if (!(state->card->ac97_status & VOL_MUTED)) { | |
452 | aud_reg = ali_ac97_get(codec, AC97_MASTER_VOL_STEREO); | |
453 | ali_ac97_set(codec, AC97_MASTER_VOL_STEREO, | |
454 | (aud_reg & ~VOL_MUTED)); | |
455 | } | |
456 | state->card->ac97_status &= ~(VOL_MUTED | SPDIF_ON); | |
457 | return; | |
458 | } | |
459 | ||
460 | vol = ali_ac97_get(codec, AC97_MASTER_VOL_STEREO); | |
461 | state->card->ac97_status = vol & VOL_MUTED; | |
462 | ||
463 | /* Set S/PDIF transmitter sample rate */ | |
464 | aud_reg = ali_ac97_get(codec, AC97_SPDIF_CONTROL); | |
465 | switch (rate) { | |
466 | case 32000: | |
467 | aud_reg = (aud_reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_32K; | |
468 | break; | |
469 | case 44100: | |
470 | aud_reg = (aud_reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_44K; | |
471 | break; | |
472 | case 48000: | |
473 | aud_reg = (aud_reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_48K; | |
474 | break; | |
475 | default: | |
476 | /* turn off S/PDIF */ | |
477 | aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS); | |
478 | ali_ac97_set(codec, AC97_EXTENDED_STATUS, (aud_reg & ~AC97_EA_SPDIF)); | |
479 | state->card->ac97_status &= ~SPDIF_ON; | |
480 | return; | |
481 | } | |
482 | ||
483 | ali_ac97_set(codec, AC97_SPDIF_CONTROL, aud_reg); | |
484 | ||
485 | aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS); | |
486 | aud_reg = (aud_reg & AC97_EA_SLOT_MASK) | slots | AC97_EA_SPDIF; | |
487 | ali_ac97_set(codec, AC97_EXTENDED_STATUS, aud_reg); | |
488 | ||
489 | aud_reg = ali_ac97_get(codec, AC97_POWER_CONTROL); | |
490 | aud_reg |= 0x0002; | |
491 | ali_ac97_set(codec, AC97_POWER_CONTROL, aud_reg); | |
492 | udelay(1); | |
493 | ||
494 | state->card->ac97_status |= SPDIF_ON; | |
495 | ||
496 | /* Check to make sure the configuration is valid */ | |
497 | aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS); | |
498 | if (!(aud_reg & 0x0400)) { | |
499 | /* turn off S/PDIF */ | |
500 | ali_ac97_set(codec, AC97_EXTENDED_STATUS, (aud_reg & ~AC97_EA_SPDIF)); | |
501 | state->card->ac97_status &= ~SPDIF_ON; | |
502 | return; | |
503 | } | |
504 | if (codec_independent_spdif_locked > 0) { | |
505 | aud_reg = ali_ac97_get(codec, 0x6a); | |
506 | ali_ac97_set(codec, 0x6a, (aud_reg & 0xefff)); | |
507 | } | |
508 | /* Mute the analog output */ | |
509 | /* Should this only mute the PCM volume??? */ | |
510 | } | |
511 | } | |
512 | ||
513 | /* ali_set_dac_channels | |
514 | * | |
515 | * Configure the codec's multi-channel DACs | |
516 | * | |
517 | * The logic is backwards. Setting the bit to 1 turns off the DAC. | |
518 | * | |
519 | * What about the ICH? We currently configure it using the | |
520 | * SNDCTL_DSP_CHANNELS ioctl. If we're turnning on the DAC, | |
521 | * does that imply that we want the ICH set to support | |
522 | * these channels? | |
523 | * | |
524 | * TODO: | |
525 | * vailidate that the codec really supports these DACs | |
526 | * before turning them on. | |
527 | */ | |
528 | static void ali_set_dac_channels(struct ali_state *state, int channel) | |
529 | { | |
530 | int aud_reg; | |
531 | struct ac97_codec *codec = state->card->ac97_codec[0]; | |
532 | ||
533 | aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS); | |
534 | aud_reg |= AC97_EA_PRI | AC97_EA_PRJ | AC97_EA_PRK; | |
535 | state->card->ac97_status &= ~(SURR_ON | CENTER_LFE_ON); | |
536 | ||
537 | switch (channel) { | |
538 | case 2: /* always enabled */ | |
539 | break; | |
540 | case 4: | |
541 | aud_reg &= ~AC97_EA_PRJ; | |
542 | state->card->ac97_status |= SURR_ON; | |
543 | break; | |
544 | case 6: | |
545 | aud_reg &= ~(AC97_EA_PRJ | AC97_EA_PRI | AC97_EA_PRK); | |
546 | state->card->ac97_status |= SURR_ON | CENTER_LFE_ON; | |
547 | break; | |
548 | default: | |
549 | break; | |
550 | } | |
551 | ali_ac97_set(codec, AC97_EXTENDED_STATUS, aud_reg); | |
552 | ||
553 | } | |
554 | ||
555 | /* set playback sample rate */ | |
556 | static unsigned int ali_set_dac_rate(struct ali_state *state, | |
557 | unsigned int rate) | |
558 | { | |
559 | struct dmabuf *dmabuf = &state->dmabuf; | |
560 | u32 new_rate; | |
561 | struct ac97_codec *codec = state->card->ac97_codec[0]; | |
562 | ||
563 | if (!(state->card->ac97_features & 0x0001)) { | |
564 | dmabuf->rate = clocking; | |
565 | return clocking; | |
566 | } | |
567 | ||
568 | if (rate > 48000) | |
569 | rate = 48000; | |
570 | if (rate < 8000) | |
571 | rate = 8000; | |
572 | dmabuf->rate = rate; | |
573 | ||
574 | /* | |
575 | * Adjust for misclocked crap | |
576 | */ | |
577 | ||
578 | rate = (rate * clocking) / 48000; | |
579 | ||
580 | if (strict_clocking && rate < 8000) { | |
581 | rate = 8000; | |
582 | dmabuf->rate = (rate * 48000) / clocking; | |
583 | } | |
584 | ||
585 | new_rate = ac97_set_dac_rate(codec, rate); | |
586 | if (new_rate != rate) { | |
587 | dmabuf->rate = (new_rate * 48000) / clocking; | |
588 | } | |
589 | rate = new_rate; | |
590 | return dmabuf->rate; | |
591 | } | |
592 | ||
593 | /* set recording sample rate */ | |
594 | static unsigned int ali_set_adc_rate(struct ali_state *state, | |
595 | unsigned int rate) | |
596 | { | |
597 | struct dmabuf *dmabuf = &state->dmabuf; | |
598 | u32 new_rate; | |
599 | struct ac97_codec *codec = state->card->ac97_codec[0]; | |
600 | ||
601 | if (!(state->card->ac97_features & 0x0001)) { | |
602 | dmabuf->rate = clocking; | |
603 | return clocking; | |
604 | } | |
605 | ||
606 | if (rate > 48000) | |
607 | rate = 48000; | |
608 | if (rate < 8000) | |
609 | rate = 8000; | |
610 | dmabuf->rate = rate; | |
611 | ||
612 | /* | |
613 | * Adjust for misclocked crap | |
614 | */ | |
615 | ||
616 | rate = (rate * clocking) / 48000; | |
617 | if (strict_clocking && rate < 8000) { | |
618 | rate = 8000; | |
619 | dmabuf->rate = (rate * 48000) / clocking; | |
620 | } | |
621 | ||
622 | new_rate = ac97_set_adc_rate(codec, rate); | |
623 | ||
624 | if (new_rate != rate) { | |
625 | dmabuf->rate = (new_rate * 48000) / clocking; | |
626 | rate = new_rate; | |
627 | } | |
628 | return dmabuf->rate; | |
629 | } | |
630 | ||
631 | /* set codec independent spdifout sample rate */ | |
632 | static unsigned int ali_set_codecspdifout_rate(struct ali_state *state, | |
633 | unsigned int rate) | |
634 | { | |
635 | struct dmabuf *dmabuf = &state->dmabuf; | |
636 | ||
637 | if (!(state->card->ac97_features & 0x0001)) { | |
638 | dmabuf->rate = clocking; | |
639 | return clocking; | |
640 | } | |
641 | ||
642 | if (rate > 48000) | |
643 | rate = 48000; | |
644 | if (rate < 8000) | |
645 | rate = 8000; | |
646 | dmabuf->rate = rate; | |
647 | ||
648 | return dmabuf->rate; | |
649 | } | |
650 | ||
651 | /* set controller independent spdif out function sample rate */ | |
652 | static void ali_set_spdifout_rate(struct ali_state *state, | |
653 | unsigned int rate) | |
654 | { | |
655 | unsigned char ch_st_sel; | |
656 | unsigned short status_rate; | |
657 | ||
658 | switch (rate) { | |
659 | case 44100: | |
660 | status_rate = 0; | |
661 | break; | |
662 | case 32000: | |
663 | status_rate = 0x300; | |
664 | break; | |
665 | case 48000: | |
666 | default: | |
667 | status_rate = 0x200; | |
668 | break; | |
669 | } | |
670 | ||
671 | ch_st_sel = inb(state->card->iobase + ALI_SPDIFICS) & ALI_SPDIF_OUT_CH_STATUS; //select spdif_out | |
672 | ||
673 | ch_st_sel |= 0x80; //select right | |
674 | outb(ch_st_sel, (state->card->iobase + ALI_SPDIFICS)); | |
675 | outb(status_rate | 0x20, (state->card->iobase + ALI_SPDIFCSR + 2)); | |
676 | ||
677 | ch_st_sel &= (~0x80); //select left | |
678 | outb(ch_st_sel, (state->card->iobase + ALI_SPDIFICS)); | |
679 | outw(status_rate | 0x10, (state->card->iobase + ALI_SPDIFCSR + 2)); | |
680 | } | |
681 | ||
682 | /* get current playback/recording dma buffer pointer (byte offset from LBA), | |
683 | called with spinlock held! */ | |
684 | ||
685 | static inline unsigned ali_get_dma_addr(struct ali_state *state, int rec) | |
686 | { | |
687 | struct dmabuf *dmabuf = &state->dmabuf; | |
688 | unsigned int civ, offset, port, port_picb; | |
689 | unsigned int data; | |
690 | ||
691 | if (!dmabuf->enable) | |
692 | return 0; | |
693 | ||
694 | if (rec == 1) | |
695 | port = state->card->iobase + dmabuf->read_channel->port; | |
696 | else if (rec == 2) | |
697 | port = state->card->iobase + dmabuf->codec_spdifout_channel->port; | |
698 | else if (rec == 3) | |
699 | port = state->card->iobase + dmabuf->controller_spdifout_channel->port; | |
700 | else | |
701 | port = state->card->iobase + dmabuf->write_channel->port; | |
702 | ||
703 | port_picb = port + OFF_PICB; | |
704 | ||
705 | do { | |
706 | civ = inb(port + OFF_CIV) & 31; | |
707 | offset = inw(port_picb); | |
708 | /* Must have a delay here! */ | |
709 | if (offset == 0) | |
710 | udelay(1); | |
711 | ||
712 | /* Reread both registers and make sure that that total | |
713 | * offset from the first reading to the second is 0. | |
714 | * There is an issue with SiS hardware where it will count | |
715 | * picb down to 0, then update civ to the next value, | |
716 | * then set the new picb to fragsize bytes. We can catch | |
717 | * it between the civ update and the picb update, making | |
718 | * it look as though we are 1 fragsize ahead of where we | |
719 | * are. The next to we get the address though, it will | |
720 | * be back in thdelay is more than long enough | |
721 | * that we won't have to worry about the chip still being | |
722 | * out of sync with reality ;-) | |
723 | */ | |
724 | } while (civ != (inb(port + OFF_CIV) & 31) || offset != inw(port_picb)); | |
725 | ||
726 | data = ((civ + 1) * dmabuf->fragsize - (2 * offset)) % dmabuf->dmasize; | |
727 | if (inw(port_picb) == 0) | |
728 | data -= 2048; | |
729 | ||
730 | return data; | |
731 | } | |
732 | ||
733 | /* Stop recording (lock held) */ | |
734 | static inline void __stop_adc(struct ali_state *state) | |
735 | { | |
736 | struct dmabuf *dmabuf = &state->dmabuf; | |
737 | struct ali_card *card = state->card; | |
738 | ||
739 | dmabuf->enable &= ~ADC_RUNNING; | |
740 | ||
741 | outl((1 << 18) | (1 << 16), card->iobase + ALI_DMACR); | |
742 | udelay(1); | |
743 | ||
744 | outb(0, card->iobase + PI_CR); | |
745 | while (inb(card->iobase + PI_CR) != 0); | |
746 | ||
747 | // now clear any latent interrupt bits (like the halt bit) | |
748 | outb(inb(card->iobase + PI_SR) | 0x001e, card->iobase + PI_SR); | |
749 | outl(inl(card->iobase + ALI_INTERRUPTSR) & INT_PCMIN, card->iobase + ALI_INTERRUPTSR); | |
750 | } | |
751 | ||
752 | static void stop_adc(struct ali_state *state) | |
753 | { | |
754 | struct ali_card *card = state->card; | |
755 | unsigned long flags; | |
756 | spin_lock_irqsave(&card->lock, flags); | |
757 | __stop_adc(state); | |
758 | spin_unlock_irqrestore(&card->lock, flags); | |
759 | } | |
760 | ||
761 | static inline void __start_adc(struct ali_state *state) | |
762 | { | |
763 | struct dmabuf *dmabuf = &state->dmabuf; | |
764 | ||
765 | if (dmabuf->count < dmabuf->dmasize && dmabuf->ready | |
766 | && !dmabuf->enable && (dmabuf->trigger & PCM_ENABLE_INPUT)) { | |
767 | dmabuf->enable |= ADC_RUNNING; | |
768 | outb((1 << 4) | (1 << 2), state->card->iobase + PI_CR); | |
769 | if (state->card->channel[0].used == 1) | |
770 | outl(1, state->card->iobase + ALI_DMACR); // DMA CONTROL REGISTRER | |
771 | udelay(100); | |
772 | if (state->card->channel[2].used == 1) | |
773 | outl((1 << 2), state->card->iobase + ALI_DMACR); //DMA CONTROL REGISTER | |
774 | udelay(100); | |
775 | } | |
776 | } | |
777 | ||
778 | static void start_adc(struct ali_state *state) | |
779 | { | |
780 | struct ali_card *card = state->card; | |
781 | unsigned long flags; | |
782 | ||
783 | spin_lock_irqsave(&card->lock, flags); | |
784 | __start_adc(state); | |
785 | spin_unlock_irqrestore(&card->lock, flags); | |
786 | } | |
787 | ||
788 | /* stop playback (lock held) */ | |
789 | static inline void __stop_dac(struct ali_state *state) | |
790 | { | |
791 | struct dmabuf *dmabuf = &state->dmabuf; | |
792 | struct ali_card *card = state->card; | |
793 | ||
794 | dmabuf->enable &= ~DAC_RUNNING; | |
795 | outl(0x00020000, card->iobase + 0x08); | |
796 | outb(0, card->iobase + PO_CR); | |
797 | while (inb(card->iobase + PO_CR) != 0) | |
798 | cpu_relax(); | |
799 | ||
800 | outb(inb(card->iobase + PO_SR) | 0x001e, card->iobase + PO_SR); | |
801 | ||
802 | outl(inl(card->iobase + ALI_INTERRUPTSR) & INT_PCMOUT, card->iobase + ALI_INTERRUPTSR); | |
803 | } | |
804 | ||
805 | static void stop_dac(struct ali_state *state) | |
806 | { | |
807 | struct ali_card *card = state->card; | |
808 | unsigned long flags; | |
809 | spin_lock_irqsave(&card->lock, flags); | |
810 | __stop_dac(state); | |
811 | spin_unlock_irqrestore(&card->lock, flags); | |
812 | } | |
813 | ||
814 | static inline void __start_dac(struct ali_state *state) | |
815 | { | |
816 | struct dmabuf *dmabuf = &state->dmabuf; | |
817 | if (dmabuf->count > 0 && dmabuf->ready && !dmabuf->enable && | |
818 | (dmabuf->trigger & PCM_ENABLE_OUTPUT)) { | |
819 | dmabuf->enable |= DAC_RUNNING; | |
820 | outb((1 << 4) | (1 << 2), state->card->iobase + PO_CR); | |
821 | outl((1 << 1), state->card->iobase + 0x08); //dma control register | |
822 | } | |
823 | } | |
824 | ||
825 | static void start_dac(struct ali_state *state) | |
826 | { | |
827 | struct ali_card *card = state->card; | |
828 | unsigned long flags; | |
829 | spin_lock_irqsave(&card->lock, flags); | |
830 | __start_dac(state); | |
831 | spin_unlock_irqrestore(&card->lock, flags); | |
832 | } | |
833 | ||
834 | /* stop codec and controller spdif out (lock held) */ | |
835 | static inline void __stop_spdifout(struct ali_state *state) | |
836 | { | |
837 | struct dmabuf *dmabuf = &state->dmabuf; | |
838 | struct ali_card *card = state->card; | |
839 | ||
840 | if (codec_independent_spdif_locked > 0) { | |
841 | dmabuf->enable &= ~CODEC_SPDIFOUT_RUNNING; | |
842 | outl((1 << 19), card->iobase + 0x08); | |
843 | outb(0, card->iobase + CODECSPDIFOUT_CR); | |
844 | ||
845 | while (inb(card->iobase + CODECSPDIFOUT_CR) != 0) | |
846 | cpu_relax(); | |
847 | ||
848 | outb(inb(card->iobase + CODECSPDIFOUT_SR) | 0x001e, card->iobase + CODECSPDIFOUT_SR); | |
849 | outl(inl(card->iobase + ALI_INTERRUPTSR) & INT_CODECSPDIFOUT, card->iobase + ALI_INTERRUPTSR); | |
850 | } else { | |
851 | if (controller_independent_spdif_locked > 0) { | |
852 | dmabuf->enable &= ~CONTROLLER_SPDIFOUT_RUNNING; | |
853 | outl((1 << 23), card->iobase + 0x08); | |
854 | outb(0, card->iobase + CONTROLLERSPDIFOUT_CR); | |
855 | while (inb(card->iobase + CONTROLLERSPDIFOUT_CR) != 0) | |
856 | cpu_relax(); | |
857 | outb(inb(card->iobase + CONTROLLERSPDIFOUT_SR) | 0x001e, card->iobase + CONTROLLERSPDIFOUT_SR); | |
858 | outl(inl(card->iobase + ALI_INTERRUPTSR) & INT_SPDIFOUT, card->iobase + ALI_INTERRUPTSR); | |
859 | } | |
860 | } | |
861 | } | |
862 | ||
863 | static void stop_spdifout(struct ali_state *state) | |
864 | { | |
865 | struct ali_card *card = state->card; | |
866 | unsigned long flags; | |
867 | spin_lock_irqsave(&card->lock, flags); | |
868 | __stop_spdifout(state); | |
869 | spin_unlock_irqrestore(&card->lock, flags); | |
870 | } | |
871 | ||
872 | static inline void __start_spdifout(struct ali_state *state) | |
873 | { | |
874 | struct dmabuf *dmabuf = &state->dmabuf; | |
875 | if (dmabuf->count > 0 && dmabuf->ready && !dmabuf->enable && | |
876 | (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) { | |
877 | if (codec_independent_spdif_locked > 0) { | |
878 | dmabuf->enable |= CODEC_SPDIFOUT_RUNNING; | |
879 | outb((1 << 4) | (1 << 2), state->card->iobase + CODECSPDIFOUT_CR); | |
880 | outl((1 << 3), state->card->iobase + 0x08); //dma control register | |
881 | } else { | |
882 | if (controller_independent_spdif_locked > 0) { | |
883 | dmabuf->enable |= CONTROLLER_SPDIFOUT_RUNNING; | |
884 | outb((1 << 4) | (1 << 2), state->card->iobase + CONTROLLERSPDIFOUT_CR); | |
885 | outl((1 << 7), state->card->iobase + 0x08); //dma control register | |
886 | } | |
887 | } | |
888 | } | |
889 | } | |
890 | ||
891 | static void start_spdifout(struct ali_state *state) | |
892 | { | |
893 | struct ali_card *card = state->card; | |
894 | unsigned long flags; | |
895 | spin_lock_irqsave(&card->lock, flags); | |
896 | __start_spdifout(state); | |
897 | spin_unlock_irqrestore(&card->lock, flags); | |
898 | } | |
899 | ||
900 | #define DMABUF_DEFAULTORDER (16-PAGE_SHIFT) | |
901 | #define DMABUF_MINORDER 1 | |
902 | ||
903 | /* allocate DMA buffer, playback , recording,spdif out buffer should be allocated separately */ | |
904 | static int alloc_dmabuf(struct ali_state *state) | |
905 | { | |
906 | struct dmabuf *dmabuf = &state->dmabuf; | |
907 | void *rawbuf = NULL; | |
908 | int order, size; | |
909 | struct page *page, *pend; | |
910 | ||
911 | /* If we don't have any oss frag params, then use our default ones */ | |
912 | if (dmabuf->ossmaxfrags == 0) | |
913 | dmabuf->ossmaxfrags = 4; | |
914 | if (dmabuf->ossfragsize == 0) | |
915 | dmabuf->ossfragsize = (PAGE_SIZE << DMABUF_DEFAULTORDER) / dmabuf->ossmaxfrags; | |
916 | size = dmabuf->ossfragsize * dmabuf->ossmaxfrags; | |
917 | ||
918 | if (dmabuf->rawbuf && (PAGE_SIZE << dmabuf->buforder) == size) | |
919 | return 0; | |
920 | /* alloc enough to satisfy the oss params */ | |
921 | for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--) { | |
922 | if ((PAGE_SIZE << order) > size) | |
923 | continue; | |
924 | if ((rawbuf = pci_alloc_consistent(state->card->pci_dev, | |
925 | PAGE_SIZE << order, | |
926 | &dmabuf->dma_handle))) | |
927 | break; | |
928 | } | |
929 | if (!rawbuf) | |
930 | return -ENOMEM; | |
931 | ||
932 | dmabuf->ready = dmabuf->mapped = 0; | |
933 | dmabuf->rawbuf = rawbuf; | |
934 | dmabuf->buforder = order; | |
935 | ||
936 | /* now mark the pages as reserved; otherwise remap_pfn_range doesn't do what we want */ | |
937 | pend = virt_to_page(rawbuf + (PAGE_SIZE << order) - 1); | |
938 | for (page = virt_to_page(rawbuf); page <= pend; page++) | |
939 | SetPageReserved(page); | |
940 | return 0; | |
941 | } | |
942 | ||
943 | /* free DMA buffer */ | |
944 | static void dealloc_dmabuf(struct ali_state *state) | |
945 | { | |
946 | struct dmabuf *dmabuf = &state->dmabuf; | |
947 | struct page *page, *pend; | |
948 | ||
949 | if (dmabuf->rawbuf) { | |
950 | /* undo marking the pages as reserved */ | |
951 | pend = virt_to_page(dmabuf->rawbuf + (PAGE_SIZE << dmabuf->buforder) - 1); | |
952 | for (page = virt_to_page(dmabuf->rawbuf); page <= pend; page++) | |
953 | ClearPageReserved(page); | |
954 | pci_free_consistent(state->card->pci_dev, | |
955 | PAGE_SIZE << dmabuf->buforder, | |
956 | dmabuf->rawbuf, dmabuf->dma_handle); | |
957 | } | |
958 | dmabuf->rawbuf = NULL; | |
959 | dmabuf->mapped = dmabuf->ready = 0; | |
960 | } | |
961 | ||
962 | static int prog_dmabuf(struct ali_state *state, unsigned rec) | |
963 | { | |
964 | struct dmabuf *dmabuf = &state->dmabuf; | |
965 | struct ali_channel *c = NULL; | |
966 | struct sg_item *sg; | |
967 | unsigned long flags; | |
968 | int ret; | |
969 | unsigned fragint; | |
970 | int i; | |
971 | ||
972 | spin_lock_irqsave(&state->card->lock, flags); | |
973 | if (dmabuf->enable & DAC_RUNNING) | |
974 | __stop_dac(state); | |
975 | if (dmabuf->enable & ADC_RUNNING) | |
976 | __stop_adc(state); | |
977 | if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) | |
978 | __stop_spdifout(state); | |
979 | if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) | |
980 | __stop_spdifout(state); | |
981 | ||
982 | dmabuf->total_bytes = 0; | |
983 | dmabuf->count = dmabuf->error = 0; | |
984 | dmabuf->swptr = dmabuf->hwptr = 0; | |
985 | spin_unlock_irqrestore(&state->card->lock, flags); | |
986 | ||
987 | /* allocate DMA buffer, let alloc_dmabuf determine if we are already | |
988 | * allocated well enough or if we should replace the current buffer | |
989 | * (assuming one is already allocated, if it isn't, then allocate it). | |
990 | */ | |
991 | if ((ret = alloc_dmabuf(state))) | |
992 | return ret; | |
993 | ||
994 | /* FIXME: figure out all this OSS fragment stuff */ | |
995 | /* I did, it now does what it should according to the OSS API. DL */ | |
996 | /* We may not have realloced our dmabuf, but the fragment size to | |
997 | * fragment number ratio may have changed, so go ahead and reprogram | |
998 | * things | |
999 | */ | |
1000 | ||
1001 | dmabuf->dmasize = PAGE_SIZE << dmabuf->buforder; | |
1002 | dmabuf->numfrag = SG_LEN; | |
1003 | dmabuf->fragsize = dmabuf->dmasize / dmabuf->numfrag; | |
1004 | dmabuf->fragsamples = dmabuf->fragsize >> 1; | |
1005 | dmabuf->userfragsize = dmabuf->ossfragsize; | |
1006 | dmabuf->userfrags = dmabuf->dmasize / dmabuf->ossfragsize; | |
1007 | ||
1008 | memset(dmabuf->rawbuf, 0, dmabuf->dmasize); | |
1009 | ||
1010 | if (dmabuf->ossmaxfrags == 4) { | |
1011 | fragint = 8; | |
1012 | dmabuf->fragshift = 2; | |
1013 | } else if (dmabuf->ossmaxfrags == 8) { | |
1014 | fragint = 4; | |
1015 | dmabuf->fragshift = 3; | |
1016 | } else if (dmabuf->ossmaxfrags == 16) { | |
1017 | fragint = 2; | |
1018 | dmabuf->fragshift = 4; | |
1019 | } else { | |
1020 | fragint = 1; | |
1021 | dmabuf->fragshift = 5; | |
1022 | } | |
1023 | /* | |
1024 | * Now set up the ring | |
1025 | */ | |
1026 | ||
1027 | if (rec == 1) | |
1028 | c = dmabuf->read_channel; | |
1029 | else if (rec == 2) | |
1030 | c = dmabuf->codec_spdifout_channel; | |
1031 | else if (rec == 3) | |
1032 | c = dmabuf->controller_spdifout_channel; | |
1033 | else if (rec == 0) | |
1034 | c = dmabuf->write_channel; | |
1035 | if (c != NULL) { | |
1036 | sg = &c->sg[0]; | |
1037 | /* | |
1038 | * Load up 32 sg entries and take an interrupt at half | |
1039 | * way (we might want more interrupts later..) | |
1040 | */ | |
1041 | for (i = 0; i < dmabuf->numfrag; i++) { | |
1042 | sg->busaddr = | |
1043 | virt_to_bus(dmabuf->rawbuf + | |
1044 | dmabuf->fragsize * i); | |
1045 | // the card will always be doing 16bit stereo | |
1046 | sg->control = dmabuf->fragsamples; | |
1047 | sg->control |= CON_BUFPAD; //I modify | |
1048 | // set us up to get IOC interrupts as often as needed to | |
1049 | // satisfy numfrag requirements, no more | |
1050 | if (((i + 1) % fragint) == 0) { | |
1051 | sg->control |= CON_IOC; | |
1052 | } | |
1053 | sg++; | |
1054 | } | |
1055 | spin_lock_irqsave(&state->card->lock, flags); | |
1056 | outb(2, state->card->iobase + c->port + OFF_CR); /* reset DMA machine */ | |
1057 | outl(virt_to_bus(&c->sg[0]), state->card->iobase + c->port + OFF_BDBAR); | |
1058 | outb(0, state->card->iobase + c->port + OFF_CIV); | |
1059 | outb(0, state->card->iobase + c->port + OFF_LVI); | |
1060 | spin_unlock_irqrestore(&state->card->lock, flags); | |
1061 | } | |
1062 | /* set the ready flag for the dma buffer */ | |
1063 | dmabuf->ready = 1; | |
1064 | return 0; | |
1065 | } | |
1066 | ||
1067 | static void __ali_update_lvi(struct ali_state *state, int rec) | |
1068 | { | |
1069 | struct dmabuf *dmabuf = &state->dmabuf; | |
1070 | int x, port; | |
1071 | port = state->card->iobase; | |
1072 | if (rec == 1) | |
1073 | port += dmabuf->read_channel->port; | |
1074 | else if (rec == 2) | |
1075 | port += dmabuf->codec_spdifout_channel->port; | |
1076 | else if (rec == 3) | |
1077 | port += dmabuf->controller_spdifout_channel->port; | |
1078 | else if (rec == 0) | |
1079 | port += dmabuf->write_channel->port; | |
1080 | /* if we are currently stopped, then our CIV is actually set to our | |
1081 | * *last* sg segment and we are ready to wrap to the next. However, | |
1082 | * if we set our LVI to the last sg segment, then it won't wrap to | |
1083 | * the next sg segment, it won't even get a start. So, instead, when | |
1084 | * we are stopped, we set both the LVI value and also we increment | |
1085 | * the CIV value to the next sg segment to be played so that when | |
1086 | * we call start_{dac,adc}, things will operate properly | |
1087 | */ | |
1088 | if (!dmabuf->enable && dmabuf->ready) { | |
1089 | if (rec && dmabuf->count < dmabuf->dmasize && (dmabuf->trigger & PCM_ENABLE_INPUT)) { | |
1090 | outb((inb(port + OFF_CIV) + 1) & 31, port + OFF_LVI); | |
1091 | __start_adc(state); | |
1092 | while (! (inb(port + OFF_CR) & ((1 << 4) | (1 << 2)))) | |
1093 | cpu_relax(); | |
1094 | } else if (!rec && dmabuf->count && (dmabuf->trigger & PCM_ENABLE_OUTPUT)) { | |
1095 | outb((inb(port + OFF_CIV) + 1) & 31, port + OFF_LVI); | |
1096 | __start_dac(state); | |
1097 | while (!(inb(port + OFF_CR) & ((1 << 4) | (1 << 2)))) | |
1098 | cpu_relax(); | |
1099 | } else if (rec && dmabuf->count && (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) { | |
1100 | if (codec_independent_spdif_locked > 0) { | |
1101 | // outb((inb(port+OFF_CIV))&31, port+OFF_LVI); | |
1102 | outb((inb(port + OFF_CIV) + 1) & 31, port + OFF_LVI); | |
1103 | __start_spdifout(state); | |
1104 | while (!(inb(port + OFF_CR) & ((1 << 4) | (1 << 2)))) | |
1105 | cpu_relax(); | |
1106 | } else { | |
1107 | if (controller_independent_spdif_locked > 0) { | |
1108 | outb((inb(port + OFF_CIV) + 1) & 31, port + OFF_LVI); | |
1109 | __start_spdifout(state); | |
1110 | while (!(inb(port + OFF_CR) & ((1 << 4) | (1 << 2)))) | |
1111 | cpu_relax(); | |
1112 | } | |
1113 | } | |
1114 | } | |
1115 | } | |
1116 | ||
1117 | /* swptr - 1 is the tail of our transfer */ | |
1118 | x = (dmabuf->dmasize + dmabuf->swptr - 1) % dmabuf->dmasize; | |
1119 | x /= dmabuf->fragsize; | |
1120 | outb(x, port + OFF_LVI); | |
1121 | } | |
1122 | ||
1123 | static void ali_update_lvi(struct ali_state *state, int rec) | |
1124 | { | |
1125 | struct dmabuf *dmabuf = &state->dmabuf; | |
1126 | unsigned long flags; | |
1127 | if (!dmabuf->ready) | |
1128 | return; | |
1129 | spin_lock_irqsave(&state->card->lock, flags); | |
1130 | __ali_update_lvi(state, rec); | |
1131 | spin_unlock_irqrestore(&state->card->lock, flags); | |
1132 | } | |
1133 | ||
1134 | /* update buffer manangement pointers, especially, dmabuf->count and dmabuf->hwptr */ | |
1135 | static void ali_update_ptr(struct ali_state *state) | |
1136 | { | |
1137 | struct dmabuf *dmabuf = &state->dmabuf; | |
1138 | unsigned hwptr; | |
1139 | int diff; | |
1140 | ||
1141 | /* error handling and process wake up for DAC */ | |
1142 | if (dmabuf->enable == ADC_RUNNING) { | |
1143 | /* update hardware pointer */ | |
1144 | hwptr = ali_get_dma_addr(state, 1); | |
1145 | diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize; | |
1146 | dmabuf->hwptr = hwptr; | |
1147 | dmabuf->total_bytes += diff; | |
1148 | dmabuf->count += diff; | |
1149 | if (dmabuf->count > dmabuf->dmasize) { | |
1150 | /* buffer underrun or buffer overrun */ | |
1151 | /* this is normal for the end of a read */ | |
1152 | /* only give an error if we went past the */ | |
1153 | /* last valid sg entry */ | |
1154 | if ((inb(state->card->iobase + PI_CIV) & 31) != (inb(state->card->iobase + PI_LVI) & 31)) { | |
1155 | printk(KERN_WARNING "ali_audio: DMA overrun on read\n"); | |
1156 | dmabuf->error++; | |
1157 | } | |
1158 | } | |
1159 | if (dmabuf->count > dmabuf->userfragsize) | |
1160 | wake_up(&dmabuf->wait); | |
1161 | } | |
1162 | /* error handling and process wake up for DAC */ | |
1163 | if (dmabuf->enable == DAC_RUNNING) { | |
1164 | /* update hardware pointer */ | |
1165 | hwptr = ali_get_dma_addr(state, 0); | |
1166 | diff = | |
1167 | (dmabuf->dmasize + hwptr - | |
1168 | dmabuf->hwptr) % dmabuf->dmasize; | |
1169 | #if defined(DEBUG_INTERRUPTS) || defined(DEBUG_MMAP) | |
1170 | printk("DAC HWP %d,%d,%d\n", hwptr, dmabuf->hwptr, diff); | |
1171 | #endif | |
1172 | dmabuf->hwptr = hwptr; | |
1173 | dmabuf->total_bytes += diff; | |
1174 | dmabuf->count -= diff; | |
1175 | if (dmabuf->count < 0) { | |
1176 | /* buffer underrun or buffer overrun */ | |
1177 | /* this is normal for the end of a write */ | |
1178 | /* only give an error if we went past the */ | |
1179 | /* last valid sg entry */ | |
1180 | if ((inb(state->card->iobase + PO_CIV) & 31) != (inb(state->card->iobase + PO_LVI) & 31)) { | |
1181 | printk(KERN_WARNING "ali_audio: DMA overrun on write\n"); | |
1182 | printk(KERN_DEBUG "ali_audio: CIV %d, LVI %d, hwptr %x, count %d\n", | |
1183 | inb(state->card->iobase + PO_CIV) & 31, | |
1184 | inb(state->card->iobase + PO_LVI) & 31, | |
1185 | dmabuf->hwptr, | |
1186 | dmabuf->count); | |
1187 | dmabuf->error++; | |
1188 | } | |
1189 | } | |
1190 | if (dmabuf->count < (dmabuf->dmasize - dmabuf->userfragsize)) | |
1191 | wake_up(&dmabuf->wait); | |
1192 | } | |
1193 | ||
1194 | /* error handling and process wake up for CODEC SPDIF OUT */ | |
1195 | if (dmabuf->enable == CODEC_SPDIFOUT_RUNNING) { | |
1196 | /* update hardware pointer */ | |
1197 | hwptr = ali_get_dma_addr(state, 2); | |
1198 | diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize; | |
1199 | dmabuf->hwptr = hwptr; | |
1200 | dmabuf->total_bytes += diff; | |
1201 | dmabuf->count -= diff; | |
1202 | if (dmabuf->count < 0) { | |
1203 | /* buffer underrun or buffer overrun */ | |
1204 | /* this is normal for the end of a write */ | |
1205 | /* only give an error if we went past the */ | |
1206 | /* last valid sg entry */ | |
1207 | if ((inb(state->card->iobase + CODECSPDIFOUT_CIV) & 31) != (inb(state->card->iobase + CODECSPDIFOUT_LVI) & 31)) { | |
1208 | printk(KERN_WARNING "ali_audio: DMA overrun on write\n"); | |
1209 | printk(KERN_DEBUG "ali_audio: CIV %d, LVI %d, hwptr %x, count %d\n", | |
1210 | inb(state->card->iobase + CODECSPDIFOUT_CIV) & 31, | |
1211 | inb(state->card->iobase + CODECSPDIFOUT_LVI) & 31, | |
1212 | dmabuf->hwptr, dmabuf->count); | |
1213 | dmabuf->error++; | |
1214 | } | |
1215 | } | |
1216 | if (dmabuf->count < (dmabuf->dmasize - dmabuf->userfragsize)) | |
1217 | wake_up(&dmabuf->wait); | |
1218 | } | |
1219 | /* error handling and process wake up for CONTROLLER SPDIF OUT */ | |
1220 | if (dmabuf->enable == CONTROLLER_SPDIFOUT_RUNNING) { | |
1221 | /* update hardware pointer */ | |
1222 | hwptr = ali_get_dma_addr(state, 3); | |
1223 | diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize; | |
1224 | dmabuf->hwptr = hwptr; | |
1225 | dmabuf->total_bytes += diff; | |
1226 | dmabuf->count -= diff; | |
1227 | if (dmabuf->count < 0) { | |
1228 | /* buffer underrun or buffer overrun */ | |
1229 | /* this is normal for the end of a write */ | |
1230 | /* only give an error if we went past the */ | |
1231 | /* last valid sg entry */ | |
1232 | if ((inb(state->card->iobase + CONTROLLERSPDIFOUT_CIV) & 31) != (inb(state->card->iobase + CONTROLLERSPDIFOUT_LVI) & 31)) { | |
1233 | printk(KERN_WARNING | |
1234 | "ali_audio: DMA overrun on write\n"); | |
1235 | printk("ali_audio: CIV %d, LVI %d, hwptr %x, " | |
1236 | "count %d\n", | |
1237 | inb(state->card->iobase + CONTROLLERSPDIFOUT_CIV) & 31, | |
1238 | inb(state->card->iobase + CONTROLLERSPDIFOUT_LVI) & 31, | |
1239 | dmabuf->hwptr, dmabuf->count); | |
1240 | dmabuf->error++; | |
1241 | } | |
1242 | } | |
1243 | if (dmabuf->count < (dmabuf->dmasize - dmabuf->userfragsize)) | |
1244 | wake_up(&dmabuf->wait); | |
1245 | } | |
1246 | } | |
1247 | ||
1248 | static inline int ali_get_free_write_space(struct | |
1249 | ali_state | |
1250 | *state) | |
1251 | { | |
1252 | struct dmabuf *dmabuf = &state->dmabuf; | |
1253 | int free; | |
1254 | ||
1255 | if (dmabuf->count < 0) { | |
1256 | dmabuf->count = 0; | |
1257 | dmabuf->swptr = dmabuf->hwptr; | |
1258 | } | |
1259 | free = dmabuf->dmasize - dmabuf->swptr; | |
1260 | if ((dmabuf->count + free) > dmabuf->dmasize){ | |
1261 | free = dmabuf->dmasize - dmabuf->count; | |
1262 | } | |
1263 | return free; | |
1264 | } | |
1265 | ||
1266 | static inline int ali_get_available_read_data(struct | |
1267 | ali_state | |
1268 | *state) | |
1269 | { | |
1270 | struct dmabuf *dmabuf = &state->dmabuf; | |
1271 | int avail; | |
1272 | ali_update_ptr(state); | |
1273 | // catch overruns during record | |
1274 | if (dmabuf->count > dmabuf->dmasize) { | |
1275 | dmabuf->count = dmabuf->dmasize; | |
1276 | dmabuf->swptr = dmabuf->hwptr; | |
1277 | } | |
1278 | avail = dmabuf->count; | |
1279 | avail -= (dmabuf->hwptr % dmabuf->fragsize); | |
1280 | if (avail < 0) | |
1281 | return (0); | |
1282 | return (avail); | |
1283 | } | |
1284 | ||
1285 | static int drain_dac(struct ali_state *state, int signals_allowed) | |
1286 | { | |
1287 | ||
1288 | DECLARE_WAITQUEUE(wait, current); | |
1289 | struct dmabuf *dmabuf = &state->dmabuf; | |
1290 | unsigned long flags; | |
1291 | unsigned long tmo; | |
1292 | int count; | |
1293 | if (!dmabuf->ready) | |
1294 | return 0; | |
1295 | if (dmabuf->mapped) { | |
1296 | stop_dac(state); | |
1297 | return 0; | |
1298 | } | |
1299 | add_wait_queue(&dmabuf->wait, &wait); | |
1300 | for (;;) { | |
1301 | ||
1302 | spin_lock_irqsave(&state->card->lock, flags); | |
1303 | ali_update_ptr(state); | |
1304 | count = dmabuf->count; | |
1305 | spin_unlock_irqrestore(&state->card->lock, flags); | |
1306 | if (count <= 0) | |
1307 | break; | |
1308 | /* | |
1309 | * This will make sure that our LVI is correct, that our | |
1310 | * pointer is updated, and that the DAC is running. We | |
1311 | * have to force the setting of dmabuf->trigger to avoid | |
1312 | * any possible deadlocks. | |
1313 | */ | |
1314 | if (!dmabuf->enable) { | |
1315 | dmabuf->trigger = PCM_ENABLE_OUTPUT; | |
1316 | ali_update_lvi(state, 0); | |
1317 | } | |
1318 | if (signal_pending(current) && signals_allowed) { | |
1319 | break; | |
1320 | } | |
1321 | ||
1322 | /* It seems that we have to set the current state to | |
1323 | * TASK_INTERRUPTIBLE every time to make the process | |
1324 | * really go to sleep. This also has to be *after* the | |
1325 | * update_ptr() call because update_ptr is likely to | |
1326 | * do a wake_up() which will unset this before we ever | |
1327 | * try to sleep, resuling in a tight loop in this code | |
1328 | * instead of actually sleeping and waiting for an | |
1329 | * interrupt to wake us up! | |
1330 | */ | |
1331 | set_current_state(TASK_INTERRUPTIBLE); | |
1332 | /* | |
1333 | * set the timeout to significantly longer than it *should* | |
1334 | * take for the DAC to drain the DMA buffer | |
1335 | */ | |
1336 | tmo = (count * HZ) / (dmabuf->rate); | |
1337 | if (!schedule_timeout(tmo >= 2 ? tmo : 2)) { | |
1338 | printk(KERN_ERR "ali_audio: drain_dac, dma timeout?\n"); | |
1339 | count = 0; | |
1340 | break; | |
1341 | } | |
1342 | } | |
1343 | set_current_state(TASK_RUNNING); | |
1344 | remove_wait_queue(&dmabuf->wait, &wait); | |
1345 | if (count > 0 && signal_pending(current) && signals_allowed) | |
1346 | return -ERESTARTSYS; | |
1347 | stop_dac(state); | |
1348 | return 0; | |
1349 | } | |
1350 | ||
1351 | ||
1352 | static int drain_spdifout(struct ali_state *state, int signals_allowed) | |
1353 | { | |
1354 | ||
1355 | DECLARE_WAITQUEUE(wait, current); | |
1356 | struct dmabuf *dmabuf = &state->dmabuf; | |
1357 | unsigned long flags; | |
1358 | unsigned long tmo; | |
1359 | int count; | |
1360 | if (!dmabuf->ready) | |
1361 | return 0; | |
1362 | if (dmabuf->mapped) { | |
1363 | stop_spdifout(state); | |
1364 | return 0; | |
1365 | } | |
1366 | add_wait_queue(&dmabuf->wait, &wait); | |
1367 | for (;;) { | |
1368 | ||
1369 | spin_lock_irqsave(&state->card->lock, flags); | |
1370 | ali_update_ptr(state); | |
1371 | count = dmabuf->count; | |
1372 | spin_unlock_irqrestore(&state->card->lock, flags); | |
1373 | if (count <= 0) | |
1374 | break; | |
1375 | /* | |
1376 | * This will make sure that our LVI is correct, that our | |
1377 | * pointer is updated, and that the DAC is running. We | |
1378 | * have to force the setting of dmabuf->trigger to avoid | |
1379 | * any possible deadlocks. | |
1380 | */ | |
1381 | if (!dmabuf->enable) { | |
1382 | if (codec_independent_spdif_locked > 0) { | |
1383 | dmabuf->trigger = SPDIF_ENABLE_OUTPUT; | |
1384 | ali_update_lvi(state, 2); | |
1385 | } else { | |
1386 | if (controller_independent_spdif_locked > 0) { | |
1387 | dmabuf->trigger = SPDIF_ENABLE_OUTPUT; | |
1388 | ali_update_lvi(state, 3); | |
1389 | } | |
1390 | } | |
1391 | } | |
1392 | if (signal_pending(current) && signals_allowed) { | |
1393 | break; | |
1394 | } | |
1395 | ||
1396 | /* It seems that we have to set the current state to | |
1397 | * TASK_INTERRUPTIBLE every time to make the process | |
1398 | * really go to sleep. This also has to be *after* the | |
1399 | * update_ptr() call because update_ptr is likely to | |
1400 | * do a wake_up() which will unset this before we ever | |
1401 | * try to sleep, resuling in a tight loop in this code | |
1402 | * instead of actually sleeping and waiting for an | |
1403 | * interrupt to wake us up! | |
1404 | */ | |
1405 | set_current_state(TASK_INTERRUPTIBLE); | |
1406 | /* | |
1407 | * set the timeout to significantly longer than it *should* | |
1408 | * take for the DAC to drain the DMA buffer | |
1409 | */ | |
1410 | tmo = (count * HZ) / (dmabuf->rate); | |
1411 | if (!schedule_timeout(tmo >= 2 ? tmo : 2)) { | |
1412 | printk(KERN_ERR "ali_audio: drain_spdifout, dma timeout?\n"); | |
1413 | count = 0; | |
1414 | break; | |
1415 | } | |
1416 | } | |
1417 | set_current_state(TASK_RUNNING); | |
1418 | remove_wait_queue(&dmabuf->wait, &wait); | |
1419 | if (count > 0 && signal_pending(current) && signals_allowed) | |
1420 | return -ERESTARTSYS; | |
1421 | stop_spdifout(state); | |
1422 | return 0; | |
1423 | } | |
1424 | ||
1425 | static void ali_channel_interrupt(struct ali_card *card) | |
1426 | { | |
1427 | int i, count; | |
1428 | ||
1429 | for (i = 0; i < NR_HW_CH; i++) { | |
1430 | struct ali_state *state = card->states[i]; | |
1431 | struct ali_channel *c = NULL; | |
1432 | struct dmabuf *dmabuf; | |
1433 | unsigned long port = card->iobase; | |
1434 | u16 status; | |
1435 | if (!state) | |
1436 | continue; | |
1437 | if (!state->dmabuf.ready) | |
1438 | continue; | |
1439 | dmabuf = &state->dmabuf; | |
1440 | if (codec_independent_spdif_locked > 0) { | |
1441 | if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) { | |
1442 | c = dmabuf->codec_spdifout_channel; | |
1443 | } | |
1444 | } else { | |
1445 | if (controller_independent_spdif_locked > 0) { | |
1446 | if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) | |
1447 | c = dmabuf->controller_spdifout_channel; | |
1448 | } else { | |
1449 | if (dmabuf->enable & DAC_RUNNING) { | |
1450 | c = dmabuf->write_channel; | |
1451 | } else if (dmabuf->enable & ADC_RUNNING) { | |
1452 | c = dmabuf->read_channel; | |
1453 | } else | |
1454 | continue; | |
1455 | } | |
1456 | } | |
1457 | port += c->port; | |
1458 | ||
1459 | status = inw(port + OFF_SR); | |
1460 | ||
1461 | if (status & DMA_INT_COMPLETE) { | |
1462 | /* only wake_up() waiters if this interrupt signals | |
1463 | * us being beyond a userfragsize of data open or | |
1464 | * available, and ali_update_ptr() does that for | |
1465 | * us | |
1466 | */ | |
1467 | ali_update_ptr(state); | |
1468 | } | |
1469 | ||
1470 | if (status & DMA_INT_LVI) { | |
1471 | ali_update_ptr(state); | |
1472 | wake_up(&dmabuf->wait); | |
1473 | ||
1474 | if (dmabuf->enable & DAC_RUNNING) | |
1475 | count = dmabuf->count; | |
1476 | else if (dmabuf->enable & ADC_RUNNING) | |
1477 | count = dmabuf->dmasize - dmabuf->count; | |
1478 | else if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) | |
1479 | count = dmabuf->count; | |
1480 | else if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) | |
1481 | count = dmabuf->count; | |
1482 | else count = 0; | |
1483 | ||
1484 | if (count > 0) { | |
1485 | if (dmabuf->enable & DAC_RUNNING) | |
1486 | outl((1 << 1), state->card->iobase + ALI_DMACR); | |
1487 | else if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) | |
1488 | outl((1 << 3), state->card->iobase + ALI_DMACR); | |
1489 | else if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) | |
1490 | outl((1 << 7), state->card->iobase + ALI_DMACR); | |
1491 | } else { | |
1492 | if (dmabuf->enable & DAC_RUNNING) | |
1493 | __stop_dac(state); | |
1494 | if (dmabuf->enable & ADC_RUNNING) | |
1495 | __stop_adc(state); | |
1496 | if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) | |
1497 | __stop_spdifout(state); | |
1498 | if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) | |
1499 | __stop_spdifout(state); | |
1500 | dmabuf->enable = 0; | |
1501 | wake_up(&dmabuf->wait); | |
1502 | } | |
1503 | ||
1504 | } | |
1505 | if (!(status & DMA_INT_DCH)) { | |
1506 | ali_update_ptr(state); | |
1507 | wake_up(&dmabuf->wait); | |
1508 | if (dmabuf->enable & DAC_RUNNING) | |
1509 | count = dmabuf->count; | |
1510 | else if (dmabuf->enable & ADC_RUNNING) | |
1511 | count = dmabuf->dmasize - dmabuf->count; | |
1512 | else if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) | |
1513 | count = dmabuf->count; | |
1514 | else if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) | |
1515 | count = dmabuf->count; | |
1516 | else | |
1517 | count = 0; | |
1518 | ||
1519 | if (count > 0) { | |
1520 | if (dmabuf->enable & DAC_RUNNING) | |
1521 | outl((1 << 1), state->card->iobase + ALI_DMACR); | |
1522 | else if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) | |
1523 | outl((1 << 3), state->card->iobase + ALI_DMACR); | |
1524 | else if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) | |
1525 | outl((1 << 7), state->card->iobase + ALI_DMACR); | |
1526 | } else { | |
1527 | if (dmabuf->enable & DAC_RUNNING) | |
1528 | __stop_dac(state); | |
1529 | if (dmabuf->enable & ADC_RUNNING) | |
1530 | __stop_adc(state); | |
1531 | if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) | |
1532 | __stop_spdifout(state); | |
1533 | if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) | |
1534 | __stop_spdifout(state); | |
1535 | dmabuf->enable = 0; | |
1536 | wake_up(&dmabuf->wait); | |
1537 | } | |
1538 | } | |
1539 | outw(status & DMA_INT_MASK, port + OFF_SR); | |
1540 | } | |
1541 | } | |
1542 | ||
1543 | static irqreturn_t ali_interrupt(int irq, void *dev_id, struct pt_regs *regs) | |
1544 | { | |
1545 | struct ali_card *card = (struct ali_card *) dev_id; | |
1546 | u32 status; | |
1547 | u16 status2; | |
1548 | ||
1549 | spin_lock(&card->lock); | |
1550 | status = inl(card->iobase + ALI_INTERRUPTSR); | |
1551 | if (!(status & INT_MASK)) { | |
1552 | spin_unlock(&card->lock); | |
1553 | return IRQ_NONE; /* not for us */ | |
1554 | } | |
1555 | ||
1556 | if (codec_independent_spdif_locked > 0) { | |
1557 | if (globel == 0) { | |
1558 | globel += 1; | |
1559 | status2 = inw(card->iobase + 0x76); | |
1560 | outw(status2 | 0x000c, card->iobase + 0x76); | |
1561 | } else { | |
1562 | if (status & (INT_PCMOUT | INT_PCMIN | INT_MICIN | INT_SPDIFOUT | INT_CODECSPDIFOUT)) | |
1563 | ali_channel_interrupt(card); | |
1564 | } | |
1565 | } else { | |
1566 | if (status & (INT_PCMOUT | INT_PCMIN | INT_MICIN | INT_SPDIFOUT | INT_CODECSPDIFOUT)) | |
1567 | ali_channel_interrupt(card); | |
1568 | } | |
1569 | ||
1570 | /* clear 'em */ | |
1571 | outl(status & INT_MASK, card->iobase + ALI_INTERRUPTSR); | |
1572 | spin_unlock(&card->lock); | |
1573 | return IRQ_HANDLED; | |
1574 | } | |
1575 | ||
1576 | /* in this loop, dmabuf.count signifies the amount of data that is | |
1577 | waiting to be copied to the user's buffer. It is filled by the dma | |
1578 | machine and drained by this loop. */ | |
1579 | ||
1580 | static ssize_t ali_read(struct file *file, char __user *buffer, | |
1581 | size_t count, loff_t * ppos) | |
1582 | { | |
1583 | struct ali_state *state = (struct ali_state *) file->private_data; | |
1584 | struct ali_card *card = state ? state->card : NULL; | |
1585 | struct dmabuf *dmabuf = &state->dmabuf; | |
1586 | ssize_t ret; | |
1587 | unsigned long flags; | |
1588 | unsigned int swptr; | |
1589 | int cnt; | |
1590 | DECLARE_WAITQUEUE(waita, current); | |
1591 | #ifdef DEBUG2 | |
1592 | printk("ali_audio: ali_read called, count = %d\n", count); | |
1593 | #endif | |
1594 | if (dmabuf->mapped) | |
1595 | return -ENXIO; | |
1596 | if (dmabuf->enable & DAC_RUNNING) | |
1597 | return -ENODEV; | |
1598 | if (!dmabuf->read_channel) { | |
1599 | dmabuf->ready = 0; | |
1600 | dmabuf->read_channel = card->alloc_rec_pcm_channel(card); | |
1601 | if (!dmabuf->read_channel) { | |
1602 | return -EBUSY; | |
1603 | } | |
1604 | } | |
1605 | if (!dmabuf->ready && (ret = prog_dmabuf(state, 1))) | |
1606 | return ret; | |
1607 | if (!access_ok(VERIFY_WRITE, buffer, count)) | |
1608 | return -EFAULT; | |
1609 | ret = 0; | |
1610 | add_wait_queue(&dmabuf->wait, &waita); | |
1611 | while (count > 0) { | |
1612 | set_current_state(TASK_INTERRUPTIBLE); | |
1613 | spin_lock_irqsave(&card->lock, flags); | |
1614 | if (PM_SUSPENDED(card)) { | |
1615 | spin_unlock_irqrestore(&card->lock, flags); | |
1616 | schedule(); | |
1617 | if (signal_pending(current)) { | |
1618 | if (!ret) | |
1619 | ret = -EAGAIN; | |
1620 | break; | |
1621 | } | |
1622 | continue; | |
1623 | } | |
1624 | swptr = dmabuf->swptr; | |
1625 | cnt = ali_get_available_read_data(state); | |
1626 | // this is to make the copy_to_user simpler below | |
1627 | if (cnt > (dmabuf->dmasize - swptr)) | |
1628 | cnt = dmabuf->dmasize - swptr; | |
1629 | spin_unlock_irqrestore(&card->lock, flags); | |
1630 | if (cnt > count) | |
1631 | cnt = count; | |
1632 | /* Lop off the last two bits to force the code to always | |
1633 | * write in full samples. This keeps software that sets | |
1634 | * O_NONBLOCK but doesn't check the return value of the | |
1635 | * write call from getting things out of state where they | |
1636 | * think a full 4 byte sample was written when really only | |
1637 | * a portion was, resulting in odd sound and stereo | |
1638 | * hysteresis. | |
1639 | */ | |
1640 | cnt &= ~0x3; | |
1641 | if (cnt <= 0) { | |
1642 | unsigned long tmo; | |
1643 | /* | |
1644 | * Don't let us deadlock. The ADC won't start if | |
1645 | * dmabuf->trigger isn't set. A call to SETTRIGGER | |
1646 | * could have turned it off after we set it to on | |
1647 | * previously. | |
1648 | */ | |
1649 | dmabuf->trigger = PCM_ENABLE_INPUT; | |
1650 | /* | |
1651 | * This does three things. Updates LVI to be correct, | |
1652 | * makes sure the ADC is running, and updates the | |
1653 | * hwptr. | |
1654 | */ | |
1655 | ali_update_lvi(state, 1); | |
1656 | if (file->f_flags & O_NONBLOCK) { | |
1657 | if (!ret) | |
1658 | ret = -EAGAIN; | |
1659 | goto done; | |
1660 | } | |
1661 | /* Set the timeout to how long it would take to fill | |
1662 | * two of our buffers. If we haven't been woke up | |
1663 | * by then, then we know something is wrong. | |
1664 | */ | |
1665 | tmo = (dmabuf->dmasize * HZ * 2) / (dmabuf->rate * 4); | |
1666 | ||
1667 | /* There are two situations when sleep_on_timeout returns, one is when | |
1668 | the interrupt is serviced correctly and the process is waked up by | |
1669 | ISR ON TIME. Another is when timeout is expired, which means that | |
1670 | either interrupt is NOT serviced correctly (pending interrupt) or it | |
1671 | is TOO LATE for the process to be scheduled to run (scheduler latency) | |
1672 | which results in a (potential) buffer overrun. And worse, there is | |
1673 | NOTHING we can do to prevent it. */ | |
1674 | if (!schedule_timeout(tmo >= 2 ? tmo : 2)) { | |
1675 | printk(KERN_ERR | |
1676 | "ali_audio: recording schedule timeout, " | |
1677 | "dmasz %u fragsz %u count %i hwptr %u swptr %u\n", | |
1678 | dmabuf->dmasize, dmabuf->fragsize, | |
1679 | dmabuf->count, dmabuf->hwptr, | |
1680 | dmabuf->swptr); | |
1681 | /* a buffer overrun, we delay the recovery until next time the | |
1682 | while loop begin and we REALLY have space to record */ | |
1683 | } | |
1684 | if (signal_pending(current)) { | |
1685 | ret = ret ? ret : -ERESTARTSYS; | |
1686 | goto done; | |
1687 | } | |
1688 | continue; | |
1689 | } | |
1690 | ||
1691 | if (copy_to_user(buffer, dmabuf->rawbuf + swptr, cnt)) { | |
1692 | if (!ret) | |
1693 | ret = -EFAULT; | |
1694 | goto done; | |
1695 | } | |
1696 | ||
1697 | swptr = (swptr + cnt) % dmabuf->dmasize; | |
1698 | spin_lock_irqsave(&card->lock, flags); | |
1699 | if (PM_SUSPENDED(card)) { | |
1700 | spin_unlock_irqrestore(&card->lock, flags); | |
1701 | continue; | |
1702 | } | |
1703 | dmabuf->swptr = swptr; | |
1704 | dmabuf->count -= cnt; | |
1705 | spin_unlock_irqrestore(&card->lock, flags); | |
1706 | count -= cnt; | |
1707 | buffer += cnt; | |
1708 | ret += cnt; | |
1709 | } | |
1710 | done: | |
1711 | ali_update_lvi(state, 1); | |
1712 | set_current_state(TASK_RUNNING); | |
1713 | remove_wait_queue(&dmabuf->wait, &waita); | |
1714 | return ret; | |
1715 | } | |
1716 | ||
1717 | /* in this loop, dmabuf.count signifies the amount of data that is waiting to be dma to | |
1718 | the soundcard. it is drained by the dma machine and filled by this loop. */ | |
1719 | static ssize_t ali_write(struct file *file, | |
1720 | const char __user *buffer, size_t count, loff_t * ppos) | |
1721 | { | |
1722 | struct ali_state *state = (struct ali_state *) file->private_data; | |
1723 | struct ali_card *card = state ? state->card : NULL; | |
1724 | struct dmabuf *dmabuf = &state->dmabuf; | |
1725 | ssize_t ret; | |
1726 | unsigned long flags; | |
1727 | unsigned int swptr = 0; | |
1728 | int cnt, x; | |
1729 | DECLARE_WAITQUEUE(waita, current); | |
1730 | #ifdef DEBUG2 | |
1731 | printk("ali_audio: ali_write called, count = %d\n", count); | |
1732 | #endif | |
1733 | if (dmabuf->mapped) | |
1734 | return -ENXIO; | |
1735 | if (dmabuf->enable & ADC_RUNNING) | |
1736 | return -ENODEV; | |
1737 | if (codec_independent_spdif_locked > 0) { | |
1738 | if (!dmabuf->codec_spdifout_channel) { | |
1739 | dmabuf->ready = 0; | |
1740 | dmabuf->codec_spdifout_channel = card->alloc_codec_spdifout_channel(card); | |
1741 | if (!dmabuf->codec_spdifout_channel) | |
1742 | return -EBUSY; | |
1743 | } | |
1744 | } else { | |
1745 | if (controller_independent_spdif_locked > 0) { | |
1746 | if (!dmabuf->controller_spdifout_channel) { | |
1747 | dmabuf->ready = 0; | |
1748 | dmabuf->controller_spdifout_channel = card->alloc_controller_spdifout_channel(card); | |
1749 | if (!dmabuf->controller_spdifout_channel) | |
1750 | return -EBUSY; | |
1751 | } | |
1752 | } else { | |
1753 | if (!dmabuf->write_channel) { | |
1754 | dmabuf->ready = 0; | |
1755 | dmabuf->write_channel = | |
1756 | card->alloc_pcm_channel(card); | |
1757 | if (!dmabuf->write_channel) | |
1758 | return -EBUSY; | |
1759 | } | |
1760 | } | |
1761 | } | |
1762 | ||
1763 | if (codec_independent_spdif_locked > 0) { | |
1764 | if (!dmabuf->ready && (ret = prog_dmabuf(state, 2))) | |
1765 | return ret; | |
1766 | } else { | |
1767 | if (controller_independent_spdif_locked > 0) { | |
1768 | if (!dmabuf->ready && (ret = prog_dmabuf(state, 3))) | |
1769 | return ret; | |
1770 | } else { | |
1771 | ||
1772 | if (!dmabuf->ready && (ret = prog_dmabuf(state, 0))) | |
1773 | return ret; | |
1774 | } | |
1775 | } | |
1776 | if (!access_ok(VERIFY_READ, buffer, count)) | |
1777 | return -EFAULT; | |
1778 | ret = 0; | |
1779 | add_wait_queue(&dmabuf->wait, &waita); | |
1780 | while (count > 0) { | |
1781 | set_current_state(TASK_INTERRUPTIBLE); | |
1782 | spin_lock_irqsave(&state->card->lock, flags); | |
1783 | if (PM_SUSPENDED(card)) { | |
1784 | spin_unlock_irqrestore(&card->lock, flags); | |
1785 | schedule(); | |
1786 | if (signal_pending(current)) { | |
1787 | if (!ret) | |
1788 | ret = -EAGAIN; | |
1789 | break; | |
1790 | } | |
1791 | continue; | |
1792 | } | |
1793 | ||
1794 | swptr = dmabuf->swptr; | |
1795 | cnt = ali_get_free_write_space(state); | |
1796 | /* Bound the maximum size to how much we can copy to the | |
1797 | * dma buffer before we hit the end. If we have more to | |
1798 | * copy then it will get done in a second pass of this | |
1799 | * loop starting from the beginning of the buffer. | |
1800 | */ | |
1801 | if (cnt > (dmabuf->dmasize - swptr)) | |
1802 | cnt = dmabuf->dmasize - swptr; | |
1803 | spin_unlock_irqrestore(&state->card->lock, flags); | |
1804 | #ifdef DEBUG2 | |
1805 | printk(KERN_INFO | |
1806 | "ali_audio: ali_write: %d bytes available space\n", | |
1807 | cnt); | |
1808 | #endif | |
1809 | if (cnt > count) | |
1810 | cnt = count; | |
1811 | /* Lop off the last two bits to force the code to always | |
1812 | * write in full samples. This keeps software that sets | |
1813 | * O_NONBLOCK but doesn't check the return value of the | |
1814 | * write call from getting things out of state where they | |
1815 | * think a full 4 byte sample was written when really only | |
1816 | * a portion was, resulting in odd sound and stereo | |
1817 | * hysteresis. | |
1818 | */ | |
1819 | cnt &= ~0x3; | |
1820 | if (cnt <= 0) { | |
1821 | unsigned long tmo; | |
1822 | // There is data waiting to be played | |
1823 | /* | |
1824 | * Force the trigger setting since we would | |
1825 | * deadlock with it set any other way | |
1826 | */ | |
1827 | if (codec_independent_spdif_locked > 0) { | |
1828 | dmabuf->trigger = SPDIF_ENABLE_OUTPUT; | |
1829 | ali_update_lvi(state, 2); | |
1830 | } else { | |
1831 | if (controller_independent_spdif_locked > 0) { | |
1832 | dmabuf->trigger = SPDIF_ENABLE_OUTPUT; | |
1833 | ali_update_lvi(state, 3); | |
1834 | } else { | |
1835 | ||
1836 | dmabuf->trigger = PCM_ENABLE_OUTPUT; | |
1837 | ali_update_lvi(state, 0); | |
1838 | } | |
1839 | } | |
1840 | if (file->f_flags & O_NONBLOCK) { | |
1841 | if (!ret) | |
1842 | ret = -EAGAIN; | |
1843 | goto ret; | |
1844 | } | |
1845 | /* Not strictly correct but works */ | |
1846 | tmo = (dmabuf->dmasize * HZ * 2) / (dmabuf->rate * 4); | |
1847 | /* There are two situations when sleep_on_timeout returns, one is when | |
1848 | the interrupt is serviced correctly and the process is waked up by | |
1849 | ISR ON TIME. Another is when timeout is expired, which means that | |
1850 | either interrupt is NOT serviced correctly (pending interrupt) or it | |
1851 | is TOO LATE for the process to be scheduled to run (scheduler latency) | |
1852 | which results in a (potential) buffer underrun. And worse, there is | |
1853 | NOTHING we can do to prevent it. */ | |
1854 | ||
1855 | /* FIXME - do timeout handling here !! */ | |
1856 | schedule_timeout(tmo >= 2 ? tmo : 2); | |
1857 | ||
1858 | if (signal_pending(current)) { | |
1859 | if (!ret) | |
1860 | ret = -ERESTARTSYS; | |
1861 | goto ret; | |
1862 | } | |
1863 | continue; | |
1864 | } | |
1865 | if (copy_from_user(dmabuf->rawbuf + swptr, buffer, cnt)) { | |
1866 | if (!ret) | |
1867 | ret = -EFAULT; | |
1868 | goto ret; | |
1869 | } | |
1870 | ||
1871 | swptr = (swptr + cnt) % dmabuf->dmasize; | |
1872 | spin_lock_irqsave(&state->card->lock, flags); | |
1873 | if (PM_SUSPENDED(card)) { | |
1874 | spin_unlock_irqrestore(&card->lock, flags); | |
1875 | continue; | |
1876 | } | |
1877 | ||
1878 | dmabuf->swptr = swptr; | |
1879 | dmabuf->count += cnt; | |
1880 | count -= cnt; | |
1881 | buffer += cnt; | |
1882 | ret += cnt; | |
1883 | spin_unlock_irqrestore(&state->card->lock, flags); | |
1884 | } | |
1885 | if (swptr % dmabuf->fragsize) { | |
1886 | x = dmabuf->fragsize - (swptr % dmabuf->fragsize); | |
1887 | memset(dmabuf->rawbuf + swptr, '\0', x); | |
1888 | } | |
1889 | ret: | |
1890 | if (codec_independent_spdif_locked > 0) { | |
1891 | ali_update_lvi(state, 2); | |
1892 | } else { | |
1893 | if (controller_independent_spdif_locked > 0) { | |
1894 | ali_update_lvi(state, 3); | |
1895 | } else { | |
1896 | ali_update_lvi(state, 0); | |
1897 | } | |
1898 | } | |
1899 | set_current_state(TASK_RUNNING); | |
1900 | remove_wait_queue(&dmabuf->wait, &waita); | |
1901 | return ret; | |
1902 | } | |
1903 | ||
1904 | /* No kernel lock - we have our own spinlock */ | |
1905 | static unsigned int ali_poll(struct file *file, struct poll_table_struct | |
1906 | *wait) | |
1907 | { | |
1908 | struct ali_state *state = (struct ali_state *) file->private_data; | |
1909 | struct dmabuf *dmabuf = &state->dmabuf; | |
1910 | unsigned long flags; | |
1911 | unsigned int mask = 0; | |
1912 | if (!dmabuf->ready) | |
1913 | return 0; | |
1914 | poll_wait(file, &dmabuf->wait, wait); | |
1915 | spin_lock_irqsave(&state->card->lock, flags); | |
1916 | ali_update_ptr(state); | |
1917 | if (file->f_mode & FMODE_READ && dmabuf->enable & ADC_RUNNING) { | |
1918 | if (dmabuf->count >= (signed) dmabuf->fragsize) | |
1919 | mask |= POLLIN | POLLRDNORM; | |
1920 | } | |
1921 | if (file->f_mode & FMODE_WRITE && (dmabuf->enable & (DAC_RUNNING|CODEC_SPDIFOUT_RUNNING|CONTROLLER_SPDIFOUT_RUNNING))) { | |
1922 | if ((signed) dmabuf->dmasize >= dmabuf->count + (signed) dmabuf->fragsize) | |
1923 | mask |= POLLOUT | POLLWRNORM; | |
1924 | } | |
1925 | spin_unlock_irqrestore(&state->card->lock, flags); | |
1926 | return mask; | |
1927 | } | |
1928 | ||
1929 | static int ali_mmap(struct file *file, struct vm_area_struct *vma) | |
1930 | { | |
1931 | struct ali_state *state = (struct ali_state *) file->private_data; | |
1932 | struct dmabuf *dmabuf = &state->dmabuf; | |
1933 | int ret = -EINVAL; | |
1934 | unsigned long size; | |
1935 | lock_kernel(); | |
1936 | if (vma->vm_flags & VM_WRITE) { | |
1937 | if (!dmabuf->write_channel && (dmabuf->write_channel = state->card->alloc_pcm_channel(state->card)) == NULL) { | |
1938 | ret = -EBUSY; | |
1939 | goto out; | |
1940 | } | |
1941 | } | |
1942 | if (vma->vm_flags & VM_READ) { | |
1943 | if (!dmabuf->read_channel && (dmabuf->read_channel = state->card->alloc_rec_pcm_channel(state->card)) == NULL) { | |
1944 | ret = -EBUSY; | |
1945 | goto out; | |
1946 | } | |
1947 | } | |
1948 | if ((ret = prog_dmabuf(state, 0)) != 0) | |
1949 | goto out; | |
1950 | ret = -EINVAL; | |
1951 | if (vma->vm_pgoff != 0) | |
1952 | goto out; | |
1953 | size = vma->vm_end - vma->vm_start; | |
1954 | if (size > (PAGE_SIZE << dmabuf->buforder)) | |
1955 | goto out; | |
1956 | ret = -EAGAIN; | |
1957 | if (remap_pfn_range(vma, vma->vm_start, | |
1958 | virt_to_phys(dmabuf->rawbuf) >> PAGE_SHIFT, | |
1959 | size, vma->vm_page_prot)) | |
1960 | goto out; | |
1961 | dmabuf->mapped = 1; | |
1962 | dmabuf->trigger = 0; | |
1963 | ret = 0; | |
1964 | out: | |
1965 | unlock_kernel(); | |
1966 | return ret; | |
1967 | } | |
1968 | ||
1969 | static int ali_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) | |
1970 | { | |
1971 | struct ali_state *state = (struct ali_state *) file->private_data; | |
1972 | struct ali_channel *c = NULL; | |
1973 | struct dmabuf *dmabuf = &state->dmabuf; | |
1974 | unsigned long flags; | |
1975 | audio_buf_info abinfo; | |
1976 | count_info cinfo; | |
1977 | unsigned int i_scr; | |
1978 | int val = 0, ret; | |
1979 | struct ac97_codec *codec = state->card->ac97_codec[0]; | |
1980 | void __user *argp = (void __user *)arg; | |
1981 | int __user *p = argp; | |
1982 | ||
1983 | #ifdef DEBUG | |
1984 | printk("ali_audio: ali_ioctl, arg=0x%x, cmd=", | |
1985 | arg ? *p : 0); | |
1986 | #endif | |
1987 | switch (cmd) { | |
1988 | case OSS_GETVERSION: | |
1989 | #ifdef DEBUG | |
1990 | printk("OSS_GETVERSION\n"); | |
1991 | #endif | |
1992 | return put_user(SOUND_VERSION, p); | |
1993 | case SNDCTL_DSP_RESET: | |
1994 | #ifdef DEBUG | |
1995 | printk("SNDCTL_DSP_RESET\n"); | |
1996 | #endif | |
1997 | spin_lock_irqsave(&state->card->lock, flags); | |
1998 | if (dmabuf->enable == DAC_RUNNING) { | |
1999 | c = dmabuf->write_channel; | |
2000 | __stop_dac(state); | |
2001 | } | |
2002 | if (dmabuf->enable == ADC_RUNNING) { | |
2003 | c = dmabuf->read_channel; | |
2004 | __stop_adc(state); | |
2005 | } | |
2006 | if (dmabuf->enable == CODEC_SPDIFOUT_RUNNING) { | |
2007 | c = dmabuf->codec_spdifout_channel; | |
2008 | __stop_spdifout(state); | |
2009 | } | |
2010 | if (dmabuf->enable == CONTROLLER_SPDIFOUT_RUNNING) { | |
2011 | c = dmabuf->controller_spdifout_channel; | |
2012 | __stop_spdifout(state); | |
2013 | } | |
2014 | if (c != NULL) { | |
2015 | outb(2, state->card->iobase + c->port + OFF_CR); /* reset DMA machine */ | |
2016 | outl(virt_to_bus(&c->sg[0]), | |
2017 | state->card->iobase + c->port + OFF_BDBAR); | |
2018 | outb(0, state->card->iobase + c->port + OFF_CIV); | |
2019 | outb(0, state->card->iobase + c->port + OFF_LVI); | |
2020 | } | |
2021 | ||
2022 | spin_unlock_irqrestore(&state->card->lock, flags); | |
2023 | synchronize_irq(state->card->pci_dev->irq); | |
2024 | dmabuf->ready = 0; | |
2025 | dmabuf->swptr = dmabuf->hwptr = 0; | |
2026 | dmabuf->count = dmabuf->total_bytes = 0; | |
2027 | return 0; | |
2028 | case SNDCTL_DSP_SYNC: | |
2029 | #ifdef DEBUG | |
2030 | printk("SNDCTL_DSP_SYNC\n"); | |
2031 | #endif | |
2032 | if (codec_independent_spdif_locked > 0) { | |
2033 | if (dmabuf->enable != CODEC_SPDIFOUT_RUNNING | |
2034 | || file->f_flags & O_NONBLOCK) | |
2035 | return 0; | |
2036 | if ((val = drain_spdifout(state, 1))) | |
2037 | return val; | |
2038 | } else { | |
2039 | if (controller_independent_spdif_locked > 0) { | |
2040 | if (dmabuf->enable != | |
2041 | CONTROLLER_SPDIFOUT_RUNNING | |
2042 | || file->f_flags & O_NONBLOCK) | |
2043 | return 0; | |
2044 | if ((val = drain_spdifout(state, 1))) | |
2045 | return val; | |
2046 | } else { | |
2047 | if (dmabuf->enable != DAC_RUNNING | |
2048 | || file->f_flags & O_NONBLOCK) | |
2049 | return 0; | |
2050 | if ((val = drain_dac(state, 1))) | |
2051 | return val; | |
2052 | } | |
2053 | } | |
2054 | dmabuf->total_bytes = 0; | |
2055 | return 0; | |
2056 | case SNDCTL_DSP_SPEED: /* set smaple rate */ | |
2057 | #ifdef DEBUG | |
2058 | printk("SNDCTL_DSP_SPEED\n"); | |
2059 | #endif | |
2060 | if (get_user(val, p)) | |
2061 | return -EFAULT; | |
2062 | if (val >= 0) { | |
2063 | if (file->f_mode & FMODE_WRITE) { | |
2064 | if ((state->card->ac97_status & SPDIF_ON)) { /* S/PDIF Enabled */ | |
2065 | /* RELTEK ALC650 only support 48000, need to check that */ | |
2066 | if (ali_valid_spdif_rate(codec, val)) { | |
2067 | if (codec_independent_spdif_locked > 0) { | |
2068 | ali_set_spdif_output(state, -1, 0); | |
2069 | stop_spdifout(state); | |
2070 | dmabuf->ready = 0; | |
2071 | /* I add test codec independent spdif out */ | |
2072 | spin_lock_irqsave(&state->card->lock, flags); | |
2073 | ali_set_codecspdifout_rate(state, val); // I modified | |
2074 | spin_unlock_irqrestore(&state->card->lock, flags); | |
2075 | /* Set S/PDIF transmitter rate. */ | |
2076 | i_scr = inl(state->card->iobase + ALI_SCR); | |
2077 | if ((i_scr & 0x00300000) == 0x00100000) { | |
2078 | ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked); | |
2079 | } else { | |
2080 | if ((i_scr&0x00300000) == 0x00200000) | |
2081 | { | |
2082 | ali_set_spdif_output(state, AC97_EA_SPSA_6_9, codec_independent_spdif_locked); | |
2083 | } else { | |
2084 | if ((i_scr & 0x00300000) == 0x00300000) { | |
2085 | ali_set_spdif_output(state, AC97_EA_SPSA_10_11, codec_independent_spdif_locked); | |
2086 | } else { | |
2087 | ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked); | |
2088 | } | |
2089 | } | |
2090 | } | |
2091 | ||
2092 | if (!(state->card->ac97_status & SPDIF_ON)) { | |
2093 | val = dmabuf->rate; | |
2094 | } | |
2095 | } else { | |
2096 | if (controller_independent_spdif_locked > 0) | |
2097 | { | |
2098 | stop_spdifout(state); | |
2099 | dmabuf->ready = 0; | |
2100 | spin_lock_irqsave(&state->card->lock, flags); | |
2101 | ali_set_spdifout_rate(state, controller_independent_spdif_locked); | |
2102 | spin_unlock_irqrestore(&state->card->lock, flags); | |
2103 | } else { | |
2104 | /* Set DAC rate */ | |
2105 | ali_set_spdif_output(state, -1, 0); | |
2106 | stop_dac(state); | |
2107 | dmabuf->ready = 0; | |
2108 | spin_lock_irqsave(&state->card->lock, flags); | |
2109 | ali_set_dac_rate(state, val); | |
2110 | spin_unlock_irqrestore(&state->card->lock, flags); | |
2111 | /* Set S/PDIF transmitter rate. */ | |
2112 | ali_set_spdif_output(state, AC97_EA_SPSA_3_4, val); | |
2113 | if (!(state->card->ac97_status & SPDIF_ON)) | |
2114 | { | |
2115 | val = dmabuf->rate; | |
2116 | } | |
2117 | } | |
2118 | } | |
2119 | } else { /* Not a valid rate for S/PDIF, ignore it */ | |
2120 | val = dmabuf->rate; | |
2121 | } | |
2122 | } else { | |
2123 | stop_dac(state); | |
2124 | dmabuf->ready = 0; | |
2125 | spin_lock_irqsave(&state->card->lock, flags); | |
2126 | ali_set_dac_rate(state, val); | |
2127 | spin_unlock_irqrestore(&state->card->lock, flags); | |
2128 | } | |
2129 | } | |
2130 | if (file->f_mode & FMODE_READ) { | |
2131 | stop_adc(state); | |
2132 | dmabuf->ready = 0; | |
2133 | spin_lock_irqsave(&state->card->lock, flags); | |
2134 | ali_set_adc_rate(state, val); | |
2135 | spin_unlock_irqrestore(&state->card->lock, flags); | |
2136 | } | |
2137 | } | |
2138 | return put_user(dmabuf->rate, p); | |
2139 | case SNDCTL_DSP_STEREO: /* set stereo or mono channel */ | |
2140 | #ifdef DEBUG | |
2141 | printk("SNDCTL_DSP_STEREO\n"); | |
2142 | #endif | |
2143 | if (dmabuf->enable & DAC_RUNNING) { | |
2144 | stop_dac(state); | |
2145 | } | |
2146 | if (dmabuf->enable & ADC_RUNNING) { | |
2147 | stop_adc(state); | |
2148 | } | |
2149 | if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) { | |
2150 | stop_spdifout(state); | |
2151 | } | |
2152 | if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) { | |
2153 | stop_spdifout(state); | |
2154 | } | |
2155 | return put_user(1, p); | |
2156 | case SNDCTL_DSP_GETBLKSIZE: | |
2157 | if (file->f_mode & FMODE_WRITE) { | |
2158 | if (codec_independent_spdif_locked > 0) { | |
2159 | if (!dmabuf->ready && (val = prog_dmabuf(state, 2))) | |
2160 | return val; | |
2161 | } else { | |
2162 | if (controller_independent_spdif_locked > 0) { | |
2163 | if (!dmabuf->ready && (val = prog_dmabuf(state, 3))) | |
2164 | return val; | |
2165 | } else { | |
2166 | if (!dmabuf->ready && (val = prog_dmabuf(state, 0))) | |
2167 | return val; | |
2168 | } | |
2169 | } | |
2170 | } | |
2171 | ||
2172 | if (file->f_mode & FMODE_READ) { | |
2173 | if (!dmabuf->ready && (val = prog_dmabuf(state, 1))) | |
2174 | return val; | |
2175 | } | |
2176 | #ifdef DEBUG | |
2177 | printk("SNDCTL_DSP_GETBLKSIZE %d\n", dmabuf->userfragsize); | |
2178 | #endif | |
2179 | return put_user(dmabuf->userfragsize, p); | |
2180 | case SNDCTL_DSP_GETFMTS: /* Returns a mask of supported sample format */ | |
2181 | #ifdef DEBUG | |
2182 | printk("SNDCTL_DSP_GETFMTS\n"); | |
2183 | #endif | |
2184 | return put_user(AFMT_S16_LE, p); | |
2185 | case SNDCTL_DSP_SETFMT: /* Select sample format */ | |
2186 | #ifdef DEBUG | |
2187 | printk("SNDCTL_DSP_SETFMT\n"); | |
2188 | #endif | |
2189 | return put_user(AFMT_S16_LE, p); | |
2190 | case SNDCTL_DSP_CHANNELS: // add support 4,6 channel | |
2191 | #ifdef DEBUG | |
2192 | printk("SNDCTL_DSP_CHANNELS\n"); | |
2193 | #endif | |
2194 | if (get_user(val, p)) | |
2195 | return -EFAULT; | |
2196 | if (val > 0) { | |
2197 | if (dmabuf->enable & DAC_RUNNING) { | |
2198 | stop_dac(state); | |
2199 | } | |
2200 | if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) { | |
2201 | stop_spdifout(state); | |
2202 | } | |
2203 | if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) { | |
2204 | stop_spdifout(state); | |
2205 | } | |
2206 | if (dmabuf->enable & ADC_RUNNING) { | |
2207 | stop_adc(state); | |
2208 | } | |
2209 | } else { | |
2210 | return put_user(state->card->channels, p); | |
2211 | } | |
2212 | ||
2213 | i_scr = inl(state->card->iobase + ALI_SCR); | |
2214 | /* Current # of channels enabled */ | |
2215 | if (i_scr & 0x00000100) | |
2216 | ret = 4; | |
2217 | else if (i_scr & 0x00000200) | |
2218 | ret = 6; | |
2219 | else | |
2220 | ret = 2; | |
2221 | switch (val) { | |
2222 | case 2: /* 2 channels is always supported */ | |
2223 | if (codec_independent_spdif_locked > 0) { | |
2224 | outl(((i_scr & 0xfffffcff) | 0x00100000), (state->card->iobase + ALI_SCR)); | |
2225 | } else | |
2226 | outl((i_scr & 0xfffffcff), (state->card->iobase + ALI_SCR)); | |
2227 | /* Do we need to change mixer settings???? */ | |
2228 | break; | |
2229 | case 4: /* Supported on some chipsets, better check first */ | |
2230 | if (codec_independent_spdif_locked > 0) { | |
2231 | outl(((i_scr & 0xfffffcff) | 0x00000100 | 0x00200000), (state->card->iobase + ALI_SCR)); | |
2232 | } else | |
2233 | outl(((i_scr & 0xfffffcff) | 0x00000100), (state->card->iobase + ALI_SCR)); | |
2234 | break; | |
2235 | case 6: /* Supported on some chipsets, better check first */ | |
2236 | if (codec_independent_spdif_locked > 0) { | |
2237 | outl(((i_scr & 0xfffffcff) | 0x00000200 | 0x00008000 | 0x00300000), (state->card->iobase + ALI_SCR)); | |
2238 | } else | |
2239 | outl(((i_scr & 0xfffffcff) | 0x00000200 | 0x00008000), (state->card->iobase + ALI_SCR)); | |
2240 | break; | |
2241 | default: /* nothing else is ever supported by the chipset */ | |
2242 | val = ret; | |
2243 | break; | |
2244 | } | |
2245 | return put_user(val, p); | |
2246 | case SNDCTL_DSP_POST: /* the user has sent all data and is notifying us */ | |
2247 | /* we update the swptr to the end of the last sg segment then return */ | |
2248 | #ifdef DEBUG | |
2249 | printk("SNDCTL_DSP_POST\n"); | |
2250 | #endif | |
2251 | if (codec_independent_spdif_locked > 0) { | |
2252 | if (!dmabuf->ready || (dmabuf->enable != CODEC_SPDIFOUT_RUNNING)) | |
2253 | return 0; | |
2254 | } else { | |
2255 | if (controller_independent_spdif_locked > 0) { | |
2256 | if (!dmabuf->ready || (dmabuf->enable != CONTROLLER_SPDIFOUT_RUNNING)) | |
2257 | return 0; | |
2258 | } else { | |
2259 | if (!dmabuf->ready || (dmabuf->enable != DAC_RUNNING)) | |
2260 | return 0; | |
2261 | } | |
2262 | } | |
2263 | if ((dmabuf->swptr % dmabuf->fragsize) != 0) { | |
2264 | val = dmabuf->fragsize - (dmabuf->swptr % dmabuf->fragsize); | |
2265 | dmabuf->swptr += val; | |
2266 | dmabuf->count += val; | |
2267 | } | |
2268 | return 0; | |
2269 | case SNDCTL_DSP_SUBDIVIDE: | |
2270 | if (dmabuf->subdivision) | |
2271 | return -EINVAL; | |
2272 | if (get_user(val, p)) | |
2273 | return -EFAULT; | |
2274 | if (val != 1 && val != 2 && val != 4) | |
2275 | return -EINVAL; | |
2276 | #ifdef DEBUG | |
2277 | printk("SNDCTL_DSP_SUBDIVIDE %d\n", val); | |
2278 | #endif | |
2279 | dmabuf->subdivision = val; | |
2280 | dmabuf->ready = 0; | |
2281 | return 0; | |
2282 | case SNDCTL_DSP_SETFRAGMENT: | |
2283 | if (get_user(val, p)) | |
2284 | return -EFAULT; | |
2285 | dmabuf->ossfragsize = 1 << (val & 0xffff); | |
2286 | dmabuf->ossmaxfrags = (val >> 16) & 0xffff; | |
2287 | if (!dmabuf->ossfragsize || !dmabuf->ossmaxfrags) | |
2288 | return -EINVAL; | |
2289 | /* | |
2290 | * Bound the frag size into our allowed range of 256 - 4096 | |
2291 | */ | |
2292 | if (dmabuf->ossfragsize < 256) | |
2293 | dmabuf->ossfragsize = 256; | |
2294 | else if (dmabuf->ossfragsize > 4096) | |
2295 | dmabuf->ossfragsize = 4096; | |
2296 | /* | |
2297 | * The numfrags could be something reasonable, or it could | |
2298 | * be 0xffff meaning "Give me as much as possible". So, | |
2299 | * we check the numfrags * fragsize doesn't exceed our | |
2300 | * 64k buffer limit, nor is it less than our 8k minimum. | |
2301 | * If it fails either one of these checks, then adjust the | |
2302 | * number of fragments, not the size of them. It's OK if | |
2303 | * our number of fragments doesn't equal 32 or anything | |
2304 | * like our hardware based number now since we are using | |
2305 | * a different frag count for the hardware. Before we get | |
2306 | * into this though, bound the maxfrags to avoid overflow | |
2307 | * issues. A reasonable bound would be 64k / 256 since our | |
2308 | * maximum buffer size is 64k and our minimum frag size is | |
2309 | * 256. On the other end, our minimum buffer size is 8k and | |
2310 | * our maximum frag size is 4k, so the lower bound should | |
2311 | * be 2. | |
2312 | */ | |
2313 | if (dmabuf->ossmaxfrags > 256) | |
2314 | dmabuf->ossmaxfrags = 256; | |
2315 | else if (dmabuf->ossmaxfrags < 2) | |
2316 | dmabuf->ossmaxfrags = 2; | |
2317 | val = dmabuf->ossfragsize * dmabuf->ossmaxfrags; | |
2318 | while (val < 8192) { | |
2319 | val <<= 1; | |
2320 | dmabuf->ossmaxfrags <<= 1; | |
2321 | } | |
2322 | while (val > 65536) { | |
2323 | val >>= 1; | |
2324 | dmabuf->ossmaxfrags >>= 1; | |
2325 | } | |
2326 | dmabuf->ready = 0; | |
2327 | #ifdef DEBUG | |
2328 | printk("SNDCTL_DSP_SETFRAGMENT 0x%x, %d, %d\n", val, | |
2329 | dmabuf->ossfragsize, dmabuf->ossmaxfrags); | |
2330 | #endif | |
2331 | return 0; | |
2332 | case SNDCTL_DSP_GETOSPACE: | |
2333 | if (!(file->f_mode & FMODE_WRITE)) | |
2334 | return -EINVAL; | |
2335 | if (codec_independent_spdif_locked > 0) { | |
2336 | if (!dmabuf->ready && (val = prog_dmabuf(state, 2)) != 0) | |
2337 | return val; | |
2338 | } else { | |
2339 | if (controller_independent_spdif_locked > 0) { | |
2340 | if (!dmabuf->ready && (val = prog_dmabuf(state, 3)) != 0) | |
2341 | return val; | |
2342 | } else { | |
2343 | if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0) | |
2344 | return val; | |
2345 | } | |
2346 | } | |
2347 | spin_lock_irqsave(&state->card->lock, flags); | |
2348 | ali_update_ptr(state); | |
2349 | abinfo.fragsize = dmabuf->userfragsize; | |
2350 | abinfo.fragstotal = dmabuf->userfrags; | |
2351 | if (dmabuf->mapped) | |
2352 | abinfo.bytes = dmabuf->dmasize; | |
2353 | else | |
2354 | abinfo.bytes = ali_get_free_write_space(state); | |
2355 | abinfo.fragments = abinfo.bytes / dmabuf->userfragsize; | |
2356 | spin_unlock_irqrestore(&state->card->lock, flags); | |
2357 | #if defined(DEBUG) || defined(DEBUG_MMAP) | |
2358 | printk("SNDCTL_DSP_GETOSPACE %d, %d, %d, %d\n", | |
2359 | abinfo.bytes, abinfo.fragsize, abinfo.fragments, | |
2360 | abinfo.fragstotal); | |
2361 | #endif | |
2362 | return copy_to_user(argp, &abinfo, | |
2363 | sizeof(abinfo)) ? -EFAULT : 0; | |
2364 | case SNDCTL_DSP_GETOPTR: | |
2365 | if (!(file->f_mode & FMODE_WRITE)) | |
2366 | return -EINVAL; | |
2367 | if (codec_independent_spdif_locked > 0) { | |
2368 | if (!dmabuf->ready && (val = prog_dmabuf(state, 2)) != 0) | |
2369 | return val; | |
2370 | } else { | |
2371 | if (controller_independent_spdif_locked > 0) { | |
2372 | if (!dmabuf->ready && (val = prog_dmabuf(state, 3)) != 0) | |
2373 | return val; | |
2374 | } else { | |
2375 | if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0) | |
2376 | return val; | |
2377 | } | |
2378 | } | |
2379 | spin_lock_irqsave(&state->card->lock, flags); | |
2380 | val = ali_get_free_write_space(state); | |
2381 | cinfo.bytes = dmabuf->total_bytes; | |
2382 | cinfo.ptr = dmabuf->hwptr; | |
2383 | cinfo.blocks = val / dmabuf->userfragsize; | |
2384 | if (codec_independent_spdif_locked > 0) { | |
2385 | if (dmabuf->mapped && (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) { | |
2386 | dmabuf->count += val; | |
2387 | dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize; | |
2388 | __ali_update_lvi(state, 2); | |
2389 | } | |
2390 | } else { | |
2391 | if (controller_independent_spdif_locked > 0) { | |
2392 | if (dmabuf->mapped && (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) { | |
2393 | dmabuf->count += val; | |
2394 | dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize; | |
2395 | __ali_update_lvi(state, 3); | |
2396 | } | |
2397 | } else { | |
2398 | if (dmabuf->mapped && (dmabuf->trigger & PCM_ENABLE_OUTPUT)) { | |
2399 | dmabuf->count += val; | |
2400 | dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize; | |
2401 | __ali_update_lvi(state, 0); | |
2402 | } | |
2403 | } | |
2404 | } | |
2405 | spin_unlock_irqrestore(&state->card->lock, flags); | |
2406 | #if defined(DEBUG) || defined(DEBUG_MMAP) | |
2407 | printk("SNDCTL_DSP_GETOPTR %d, %d, %d, %d\n", cinfo.bytes, | |
2408 | cinfo.blocks, cinfo.ptr, dmabuf->count); | |
2409 | #endif | |
2410 | return copy_to_user(argp, &cinfo, sizeof(cinfo))? -EFAULT : 0; | |
2411 | case SNDCTL_DSP_GETISPACE: | |
2412 | if (!(file->f_mode & FMODE_READ)) | |
2413 | return -EINVAL; | |
2414 | if (!dmabuf->ready && (val = prog_dmabuf(state, 1)) != 0) | |
2415 | return val; | |
2416 | spin_lock_irqsave(&state->card->lock, flags); | |
2417 | abinfo.bytes = ali_get_available_read_data(state); | |
2418 | abinfo.fragsize = dmabuf->userfragsize; | |
2419 | abinfo.fragstotal = dmabuf->userfrags; | |
2420 | abinfo.fragments = abinfo.bytes / dmabuf->userfragsize; | |
2421 | spin_unlock_irqrestore(&state->card->lock, flags); | |
2422 | #if defined(DEBUG) || defined(DEBUG_MMAP) | |
2423 | printk("SNDCTL_DSP_GETISPACE %d, %d, %d, %d\n", | |
2424 | abinfo.bytes, abinfo.fragsize, abinfo.fragments, | |
2425 | abinfo.fragstotal); | |
2426 | #endif | |
2427 | return copy_to_user(argp, &abinfo, | |
2428 | sizeof(abinfo)) ? -EFAULT : 0; | |
2429 | case SNDCTL_DSP_GETIPTR: | |
2430 | if (!(file->f_mode & FMODE_READ)) | |
2431 | return -EINVAL; | |
2432 | if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0) | |
2433 | return val; | |
2434 | spin_lock_irqsave(&state->card->lock, flags); | |
2435 | val = ali_get_available_read_data(state); | |
2436 | cinfo.bytes = dmabuf->total_bytes; | |
2437 | cinfo.blocks = val / dmabuf->userfragsize; | |
2438 | cinfo.ptr = dmabuf->hwptr; | |
2439 | if (dmabuf->mapped && (dmabuf->trigger & PCM_ENABLE_INPUT)) { | |
2440 | dmabuf->count -= val; | |
2441 | dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize; | |
2442 | __ali_update_lvi(state, 1); | |
2443 | } | |
2444 | spin_unlock_irqrestore(&state->card->lock, flags); | |
2445 | #if defined(DEBUG) || defined(DEBUG_MMAP) | |
2446 | printk("SNDCTL_DSP_GETIPTR %d, %d, %d, %d\n", cinfo.bytes, | |
2447 | cinfo.blocks, cinfo.ptr, dmabuf->count); | |
2448 | #endif | |
2449 | return copy_to_user(argp, &cinfo, sizeof(cinfo))? -EFAULT: 0; | |
2450 | case SNDCTL_DSP_NONBLOCK: | |
2451 | #ifdef DEBUG | |
2452 | printk("SNDCTL_DSP_NONBLOCK\n"); | |
2453 | #endif | |
2454 | file->f_flags |= O_NONBLOCK; | |
2455 | return 0; | |
2456 | case SNDCTL_DSP_GETCAPS: | |
2457 | #ifdef DEBUG | |
2458 | printk("SNDCTL_DSP_GETCAPS\n"); | |
2459 | #endif | |
2460 | return put_user(DSP_CAP_REALTIME | DSP_CAP_TRIGGER | | |
2461 | DSP_CAP_MMAP | DSP_CAP_BIND, p); | |
2462 | case SNDCTL_DSP_GETTRIGGER: | |
2463 | val = 0; | |
2464 | #ifdef DEBUG | |
2465 | printk("SNDCTL_DSP_GETTRIGGER 0x%x\n", dmabuf->trigger); | |
2466 | #endif | |
2467 | return put_user(dmabuf->trigger, p); | |
2468 | case SNDCTL_DSP_SETTRIGGER: | |
2469 | if (get_user(val, p)) | |
2470 | return -EFAULT; | |
2471 | #if defined(DEBUG) || defined(DEBUG_MMAP) | |
2472 | printk("SNDCTL_DSP_SETTRIGGER 0x%x\n", val); | |
2473 | #endif | |
2474 | if (!(val & PCM_ENABLE_INPUT) && dmabuf->enable == ADC_RUNNING) { | |
2475 | stop_adc(state); | |
2476 | } | |
2477 | if (!(val & PCM_ENABLE_OUTPUT) && dmabuf->enable == DAC_RUNNING) { | |
2478 | stop_dac(state); | |
2479 | } | |
2480 | if (!(val & SPDIF_ENABLE_OUTPUT) && dmabuf->enable == CODEC_SPDIFOUT_RUNNING) { | |
2481 | stop_spdifout(state); | |
2482 | } | |
2483 | if (!(val & SPDIF_ENABLE_OUTPUT) && dmabuf->enable == CONTROLLER_SPDIFOUT_RUNNING) { | |
2484 | stop_spdifout(state); | |
2485 | } | |
2486 | dmabuf->trigger = val; | |
2487 | if (val & PCM_ENABLE_OUTPUT && !(dmabuf->enable & DAC_RUNNING)) { | |
2488 | if (!dmabuf->write_channel) { | |
2489 | dmabuf->ready = 0; | |
2490 | dmabuf->write_channel = state->card->alloc_pcm_channel(state->card); | |
2491 | if (!dmabuf->write_channel) | |
2492 | return -EBUSY; | |
2493 | } | |
2494 | if (!dmabuf->ready && (ret = prog_dmabuf(state, 0))) | |
2495 | return ret; | |
2496 | if (dmabuf->mapped) { | |
2497 | spin_lock_irqsave(&state->card->lock, flags); | |
2498 | ali_update_ptr(state); | |
2499 | dmabuf->count = 0; | |
2500 | dmabuf->swptr = dmabuf->hwptr; | |
2501 | dmabuf->count = ali_get_free_write_space(state); | |
2502 | dmabuf->swptr = (dmabuf->swptr + dmabuf->count) % dmabuf->dmasize; | |
2503 | __ali_update_lvi(state, 0); | |
2504 | spin_unlock_irqrestore(&state->card->lock, | |
2505 | flags); | |
2506 | } else | |
2507 | start_dac(state); | |
2508 | } | |
2509 | if (val & SPDIF_ENABLE_OUTPUT && !(dmabuf->enable & CODEC_SPDIFOUT_RUNNING)) { | |
2510 | if (!dmabuf->codec_spdifout_channel) { | |
2511 | dmabuf->ready = 0; | |
2512 | dmabuf->codec_spdifout_channel = state->card->alloc_codec_spdifout_channel(state->card); | |
2513 | if (!dmabuf->codec_spdifout_channel) | |
2514 | return -EBUSY; | |
2515 | } | |
2516 | if (!dmabuf->ready && (ret = prog_dmabuf(state, 2))) | |
2517 | return ret; | |
2518 | if (dmabuf->mapped) { | |
2519 | spin_lock_irqsave(&state->card->lock, flags); | |
2520 | ali_update_ptr(state); | |
2521 | dmabuf->count = 0; | |
2522 | dmabuf->swptr = dmabuf->hwptr; | |
2523 | dmabuf->count = ali_get_free_write_space(state); | |
2524 | dmabuf->swptr = (dmabuf->swptr + dmabuf->count) % dmabuf->dmasize; | |
2525 | __ali_update_lvi(state, 2); | |
2526 | spin_unlock_irqrestore(&state->card->lock, | |
2527 | flags); | |
2528 | } else | |
2529 | start_spdifout(state); | |
2530 | } | |
2531 | if (val & SPDIF_ENABLE_OUTPUT && !(dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)) { | |
2532 | if (!dmabuf->controller_spdifout_channel) { | |
2533 | dmabuf->ready = 0; | |
2534 | dmabuf->controller_spdifout_channel = state->card->alloc_controller_spdifout_channel(state->card); | |
2535 | if (!dmabuf->controller_spdifout_channel) | |
2536 | return -EBUSY; | |
2537 | } | |
2538 | if (!dmabuf->ready && (ret = prog_dmabuf(state, 3))) | |
2539 | return ret; | |
2540 | if (dmabuf->mapped) { | |
2541 | spin_lock_irqsave(&state->card->lock, flags); | |
2542 | ali_update_ptr(state); | |
2543 | dmabuf->count = 0; | |
2544 | dmabuf->swptr = dmabuf->hwptr; | |
2545 | dmabuf->count = ali_get_free_write_space(state); | |
2546 | dmabuf->swptr = (dmabuf->swptr + dmabuf->count) % dmabuf->dmasize; | |
2547 | __ali_update_lvi(state, 3); | |
2548 | spin_unlock_irqrestore(&state->card->lock, flags); | |
2549 | } else | |
2550 | start_spdifout(state); | |
2551 | } | |
2552 | if (val & PCM_ENABLE_INPUT && !(dmabuf->enable & ADC_RUNNING)) { | |
2553 | if (!dmabuf->read_channel) { | |
2554 | dmabuf->ready = 0; | |
2555 | dmabuf->read_channel = state->card->alloc_rec_pcm_channel(state->card); | |
2556 | if (!dmabuf->read_channel) | |
2557 | return -EBUSY; | |
2558 | } | |
2559 | if (!dmabuf->ready && (ret = prog_dmabuf(state, 1))) | |
2560 | return ret; | |
2561 | if (dmabuf->mapped) { | |
2562 | spin_lock_irqsave(&state->card->lock, | |
2563 | flags); | |
2564 | ali_update_ptr(state); | |
2565 | dmabuf->swptr = dmabuf->hwptr; | |
2566 | dmabuf->count = 0; | |
2567 | spin_unlock_irqrestore(&state->card->lock, flags); | |
2568 | } | |
2569 | ali_update_lvi(state, 1); | |
2570 | start_adc(state); | |
2571 | } | |
2572 | return 0; | |
2573 | case SNDCTL_DSP_SETDUPLEX: | |
2574 | #ifdef DEBUG | |
2575 | printk("SNDCTL_DSP_SETDUPLEX\n"); | |
2576 | #endif | |
2577 | return -EINVAL; | |
2578 | case SNDCTL_DSP_GETODELAY: | |
2579 | if (!(file->f_mode & FMODE_WRITE)) | |
2580 | return -EINVAL; | |
2581 | spin_lock_irqsave(&state->card->lock, flags); | |
2582 | ali_update_ptr(state); | |
2583 | val = dmabuf->count; | |
2584 | spin_unlock_irqrestore(&state->card->lock, flags); | |
2585 | #ifdef DEBUG | |
2586 | printk("SNDCTL_DSP_GETODELAY %d\n", dmabuf->count); | |
2587 | #endif | |
2588 | return put_user(val, p); | |
2589 | case SOUND_PCM_READ_RATE: | |
2590 | #ifdef DEBUG | |
2591 | printk("SOUND_PCM_READ_RATE %d\n", dmabuf->rate); | |
2592 | #endif | |
2593 | return put_user(dmabuf->rate, p); | |
2594 | case SOUND_PCM_READ_CHANNELS: | |
2595 | #ifdef DEBUG | |
2596 | printk("SOUND_PCM_READ_CHANNELS\n"); | |
2597 | #endif | |
2598 | return put_user(2, p); | |
2599 | case SOUND_PCM_READ_BITS: | |
2600 | #ifdef DEBUG | |
2601 | printk("SOUND_PCM_READ_BITS\n"); | |
2602 | #endif | |
2603 | return put_user(AFMT_S16_LE, p); | |
2604 | case SNDCTL_DSP_SETSPDIF: /* Set S/PDIF Control register */ | |
2605 | #ifdef DEBUG | |
2606 | printk("SNDCTL_DSP_SETSPDIF\n"); | |
2607 | #endif | |
2608 | if (get_user(val, p)) | |
2609 | return -EFAULT; | |
2610 | /* Check to make sure the codec supports S/PDIF transmitter */ | |
2611 | if ((state->card->ac97_features & 4)) { | |
2612 | /* mask out the transmitter speed bits so the user can't set them */ | |
2613 | val &= ~0x3000; | |
2614 | /* Add the current transmitter speed bits to the passed value */ | |
2615 | ret = ali_ac97_get(codec, AC97_SPDIF_CONTROL); | |
2616 | val |= (ret & 0x3000); | |
2617 | ali_ac97_set(codec, AC97_SPDIF_CONTROL, val); | |
2618 | if (ali_ac97_get(codec, AC97_SPDIF_CONTROL) != val) { | |
2619 | printk(KERN_ERR "ali_audio: Unable to set S/PDIF configuration to 0x%04x.\n", val); | |
2620 | return -EFAULT; | |
2621 | } | |
2622 | } | |
2623 | #ifdef DEBUG | |
2624 | else | |
2625 | printk(KERN_WARNING "ali_audio: S/PDIF transmitter not avalible.\n"); | |
2626 | #endif | |
2627 | return put_user(val, p); | |
2628 | case SNDCTL_DSP_GETSPDIF: /* Get S/PDIF Control register */ | |
2629 | #ifdef DEBUG | |
2630 | printk("SNDCTL_DSP_GETSPDIF\n"); | |
2631 | #endif | |
2632 | if (get_user(val, p)) | |
2633 | return -EFAULT; | |
2634 | /* Check to make sure the codec supports S/PDIF transmitter */ | |
2635 | if (!(state->card->ac97_features & 4)) { | |
2636 | #ifdef DEBUG | |
2637 | printk(KERN_WARNING "ali_audio: S/PDIF transmitter not avalible.\n"); | |
2638 | #endif | |
2639 | val = 0; | |
2640 | } else { | |
2641 | val = ali_ac97_get(codec, AC97_SPDIF_CONTROL); | |
2642 | } | |
2643 | ||
2644 | return put_user(val, p); | |
2645 | //end add support spdif out | |
2646 | //add support 4,6 channel | |
2647 | case SNDCTL_DSP_GETCHANNELMASK: | |
2648 | #ifdef DEBUG | |
2649 | printk("SNDCTL_DSP_GETCHANNELMASK\n"); | |
2650 | #endif | |
2651 | if (get_user(val, p)) | |
2652 | return -EFAULT; | |
2653 | /* Based on AC'97 DAC support, not ICH hardware */ | |
2654 | val = DSP_BIND_FRONT; | |
2655 | if (state->card->ac97_features & 0x0004) | |
2656 | val |= DSP_BIND_SPDIF; | |
2657 | if (state->card->ac97_features & 0x0080) | |
2658 | val |= DSP_BIND_SURR; | |
2659 | if (state->card->ac97_features & 0x0140) | |
2660 | val |= DSP_BIND_CENTER_LFE; | |
2661 | return put_user(val, p); | |
2662 | case SNDCTL_DSP_BIND_CHANNEL: | |
2663 | #ifdef DEBUG | |
2664 | printk("SNDCTL_DSP_BIND_CHANNEL\n"); | |
2665 | #endif | |
2666 | if (get_user(val, p)) | |
2667 | return -EFAULT; | |
2668 | if (val == DSP_BIND_QUERY) { | |
2669 | val = DSP_BIND_FRONT; /* Always report this as being enabled */ | |
2670 | if (state->card->ac97_status & SPDIF_ON) | |
2671 | val |= DSP_BIND_SPDIF; | |
2672 | else { | |
2673 | if (state->card->ac97_status & SURR_ON) | |
2674 | val |= DSP_BIND_SURR; | |
2675 | if (state->card-> | |
2676 | ac97_status & CENTER_LFE_ON) | |
2677 | val |= DSP_BIND_CENTER_LFE; | |
2678 | } | |
2679 | } else { /* Not a query, set it */ | |
2680 | if (!(file->f_mode & FMODE_WRITE)) | |
2681 | return -EINVAL; | |
2682 | if (dmabuf->enable == DAC_RUNNING) { | |
2683 | stop_dac(state); | |
2684 | } | |
2685 | if (val & DSP_BIND_SPDIF) { /* Turn on SPDIF */ | |
2686 | /* Ok, this should probably define what slots | |
2687 | * to use. For now, we'll only set it to the | |
2688 | * defaults: | |
2689 | * | |
2690 | * non multichannel codec maps to slots 3&4 | |
2691 | * 2 channel codec maps to slots 7&8 | |
2692 | * 4 channel codec maps to slots 6&9 | |
2693 | * 6 channel codec maps to slots 10&11 | |
2694 | * | |
2695 | * there should be some way for the app to | |
2696 | * select the slot assignment. | |
2697 | */ | |
2698 | i_scr = inl(state->card->iobase + ALI_SCR); | |
2699 | if (codec_independent_spdif_locked > 0) { | |
2700 | ||
2701 | if ((i_scr & 0x00300000) == 0x00100000) { | |
2702 | ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked); | |
2703 | } else { | |
2704 | if ((i_scr & 0x00300000) == 0x00200000) { | |
2705 | ali_set_spdif_output(state, AC97_EA_SPSA_6_9, codec_independent_spdif_locked); | |
2706 | } else { | |
2707 | if ((i_scr & 0x00300000) == 0x00300000) { | |
2708 | ali_set_spdif_output(state, AC97_EA_SPSA_10_11, codec_independent_spdif_locked); | |
2709 | } | |
2710 | } | |
2711 | } | |
2712 | } else { /* codec spdif out (pcm out share ) */ | |
2713 | ali_set_spdif_output(state, AC97_EA_SPSA_3_4, dmabuf->rate); //I do not modify | |
2714 | } | |
2715 | ||
2716 | if (!(state->card->ac97_status & SPDIF_ON)) | |
2717 | val &= ~DSP_BIND_SPDIF; | |
2718 | } else { | |
2719 | int mask; | |
2720 | int channels; | |
2721 | /* Turn off S/PDIF if it was on */ | |
2722 | if (state->card->ac97_status & SPDIF_ON) | |
2723 | ali_set_spdif_output(state, -1, 0); | |
2724 | mask = | |
2725 | val & (DSP_BIND_FRONT | DSP_BIND_SURR | | |
2726 | DSP_BIND_CENTER_LFE); | |
2727 | switch (mask) { | |
2728 | case DSP_BIND_FRONT: | |
2729 | channels = 2; | |
2730 | break; | |
2731 | case DSP_BIND_FRONT | DSP_BIND_SURR: | |
2732 | channels = 4; | |
2733 | break; | |
2734 | case DSP_BIND_FRONT | DSP_BIND_SURR | DSP_BIND_CENTER_LFE: | |
2735 | channels = 6; | |
2736 | break; | |
2737 | default: | |
2738 | val = DSP_BIND_FRONT; | |
2739 | channels = 2; | |
2740 | break; | |
2741 | } | |
2742 | ali_set_dac_channels(state, channels); | |
2743 | /* check that they really got turned on */ | |
2744 | if (!state->card->ac97_status & SURR_ON) | |
2745 | val &= ~DSP_BIND_SURR; | |
2746 | if (!state->card-> | |
2747 | ac97_status & CENTER_LFE_ON) | |
2748 | val &= ~DSP_BIND_CENTER_LFE; | |
2749 | } | |
2750 | } | |
2751 | return put_user(val, p); | |
2752 | case SNDCTL_DSP_MAPINBUF: | |
2753 | case SNDCTL_DSP_MAPOUTBUF: | |
2754 | case SNDCTL_DSP_SETSYNCRO: | |
2755 | case SOUND_PCM_WRITE_FILTER: | |
2756 | case SOUND_PCM_READ_FILTER: | |
2757 | return -EINVAL; | |
2758 | } | |
2759 | return -EINVAL; | |
2760 | } | |
2761 | ||
2762 | static int ali_open(struct inode *inode, struct file *file) | |
2763 | { | |
2764 | int i = 0; | |
2765 | struct ali_card *card = devs; | |
2766 | struct ali_state *state = NULL; | |
2767 | struct dmabuf *dmabuf = NULL; | |
2768 | unsigned int i_scr; | |
2769 | ||
2770 | /* find an available virtual channel (instance of /dev/dsp) */ | |
2771 | ||
2772 | while (card != NULL) { | |
2773 | ||
2774 | /* | |
2775 | * If we are initializing and then fail, card could go | |
2776 | * away unuexpectedly while we are in the for() loop. | |
2777 | * So, check for card on each iteration before we check | |
2778 | * for card->initializing to avoid a possible oops. | |
2779 | * This usually only matters for times when the driver is | |
2780 | * autoloaded by kmod. | |
2781 | */ | |
2782 | for (i = 0; i < 50 && card && card->initializing; i++) { | |
2783 | set_current_state(TASK_UNINTERRUPTIBLE); | |
2784 | schedule_timeout(HZ / 20); | |
2785 | } | |
2786 | ||
2787 | for (i = 0; i < NR_HW_CH && card && !card->initializing; i++) { | |
2788 | if (card->states[i] == NULL) { | |
2789 | state = card->states[i] = (struct ali_state *) kmalloc(sizeof(struct ali_state), GFP_KERNEL); | |
2790 | if (state == NULL) | |
2791 | return -ENOMEM; | |
2792 | memset(state, 0, sizeof(struct ali_state)); | |
2793 | dmabuf = &state->dmabuf; | |
2794 | goto found_virt; | |
2795 | } | |
2796 | } | |
2797 | card = card->next; | |
2798 | } | |
2799 | ||
2800 | /* no more virtual channel avaiable */ | |
2801 | if (!state) | |
2802 | return -ENODEV; | |
2803 | found_virt: | |
2804 | /* initialize the virtual channel */ | |
2805 | ||
2806 | state->virt = i; | |
2807 | state->card = card; | |
2808 | state->magic = ALI5455_STATE_MAGIC; | |
2809 | init_waitqueue_head(&dmabuf->wait); | |
2810 | init_MUTEX(&state->open_sem); | |
2811 | file->private_data = state; | |
2812 | dmabuf->trigger = 0; | |
2813 | /* allocate hardware channels */ | |
2814 | if (file->f_mode & FMODE_READ) { | |
2815 | if ((dmabuf->read_channel = | |
2816 | card->alloc_rec_pcm_channel(card)) == NULL) { | |
2817 | kfree(card->states[i]); | |
2818 | card->states[i] = NULL; | |
2819 | return -EBUSY; | |
2820 | } | |
2821 | dmabuf->trigger |= PCM_ENABLE_INPUT; | |
2822 | ali_set_adc_rate(state, 8000); | |
2823 | } | |
2824 | if (file->f_mode & FMODE_WRITE) { | |
2825 | if (codec_independent_spdif_locked > 0) { | |
2826 | if ((dmabuf->codec_spdifout_channel = card->alloc_codec_spdifout_channel(card)) == NULL) { | |
2827 | kfree(card->states[i]); | |
2828 | card->states[i] = NULL; | |
2829 | return -EBUSY; | |
2830 | } | |
2831 | dmabuf->trigger |= SPDIF_ENABLE_OUTPUT; | |
2832 | ali_set_codecspdifout_rate(state, codec_independent_spdif_locked); //It must add | |
2833 | i_scr = inl(state->card->iobase + ALI_SCR); | |
2834 | if ((i_scr & 0x00300000) == 0x00100000) { | |
2835 | ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked); | |
2836 | } else { | |
2837 | if ((i_scr & 0x00300000) == 0x00200000) { | |
2838 | ali_set_spdif_output(state, AC97_EA_SPSA_6_9, codec_independent_spdif_locked); | |
2839 | } else { | |
2840 | if ((i_scr & 0x00300000) == 0x00300000) { | |
2841 | ali_set_spdif_output(state, AC97_EA_SPSA_10_11, codec_independent_spdif_locked); | |
2842 | } else { | |
2843 | ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked); | |
2844 | } | |
2845 | } | |
2846 | ||
2847 | } | |
2848 | } else { | |
2849 | if (controller_independent_spdif_locked > 0) { | |
2850 | if ((dmabuf->controller_spdifout_channel = card->alloc_controller_spdifout_channel(card)) == NULL) { | |
2851 | kfree(card->states[i]); | |
2852 | card->states[i] = NULL; | |
2853 | return -EBUSY; | |
2854 | } | |
2855 | dmabuf->trigger |= SPDIF_ENABLE_OUTPUT; | |
2856 | ali_set_spdifout_rate(state, controller_independent_spdif_locked); | |
2857 | } else { | |
2858 | if ((dmabuf->write_channel = card->alloc_pcm_channel(card)) == NULL) { | |
2859 | kfree(card->states[i]); | |
2860 | card->states[i] = NULL; | |
2861 | return -EBUSY; | |
2862 | } | |
2863 | /* Initialize to 8kHz? What if we don't support 8kHz? */ | |
2864 | /* Let's change this to check for S/PDIF stuff */ | |
2865 | ||
2866 | dmabuf->trigger |= PCM_ENABLE_OUTPUT; | |
2867 | if (codec_pcmout_share_spdif_locked) { | |
2868 | ali_set_dac_rate(state, codec_pcmout_share_spdif_locked); | |
2869 | ali_set_spdif_output(state, AC97_EA_SPSA_3_4, codec_pcmout_share_spdif_locked); | |
2870 | } else { | |
2871 | ali_set_dac_rate(state, 8000); | |
2872 | } | |
2873 | } | |
2874 | ||
2875 | } | |
2876 | } | |
2877 | ||
2878 | /* set default sample format. According to OSS Programmer's Guide /dev/dsp | |
2879 | should be default to unsigned 8-bits, mono, with sample rate 8kHz and | |
2880 | /dev/dspW will accept 16-bits sample, but we don't support those so we | |
2881 | set it immediately to stereo and 16bit, which is all we do support */ | |
2882 | dmabuf->fmt |= ALI5455_FMT_16BIT | ALI5455_FMT_STEREO; | |
2883 | dmabuf->ossfragsize = 0; | |
2884 | dmabuf->ossmaxfrags = 0; | |
2885 | dmabuf->subdivision = 0; | |
2886 | state->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE); | |
2887 | outl(0x00000000, card->iobase + ALI_INTERRUPTCR); | |
2888 | outl(0x00000000, card->iobase + ALI_INTERRUPTSR); | |
2889 | return nonseekable_open(inode, file); | |
2890 | } | |
2891 | ||
2892 | static int ali_release(struct inode *inode, struct file *file) | |
2893 | { | |
2894 | struct ali_state *state = (struct ali_state *) file->private_data; | |
2895 | struct ali_card *card = state->card; | |
2896 | struct dmabuf *dmabuf = &state->dmabuf; | |
2897 | unsigned long flags; | |
2898 | lock_kernel(); | |
2899 | ||
2900 | /* stop DMA state machine and free DMA buffers/channels */ | |
2901 | if (dmabuf->trigger & PCM_ENABLE_OUTPUT) | |
2902 | drain_dac(state, 0); | |
2903 | ||
2904 | if (dmabuf->trigger & SPDIF_ENABLE_OUTPUT) | |
2905 | drain_spdifout(state, 0); | |
2906 | ||
2907 | if (dmabuf->trigger & PCM_ENABLE_INPUT) | |
2908 | stop_adc(state); | |
2909 | ||
2910 | spin_lock_irqsave(&card->lock, flags); | |
2911 | dealloc_dmabuf(state); | |
2912 | if (file->f_mode & FMODE_WRITE) { | |
2913 | if (codec_independent_spdif_locked > 0) { | |
2914 | state->card->free_pcm_channel(state->card, dmabuf->codec_spdifout_channel->num); | |
2915 | } else { | |
2916 | if (controller_independent_spdif_locked > 0) | |
2917 | state->card->free_pcm_channel(state->card, | |
2918 | dmabuf->controller_spdifout_channel->num); | |
2919 | else state->card->free_pcm_channel(state->card, | |
2920 | dmabuf->write_channel->num); | |
2921 | } | |
2922 | } | |
2923 | if (file->f_mode & FMODE_READ) | |
2924 | state->card->free_pcm_channel(state->card, dmabuf->read_channel->num); | |
2925 | ||
2926 | state->card->states[state->virt] = NULL; | |
2927 | kfree(state); | |
2928 | spin_unlock_irqrestore(&card->lock, flags); | |
2929 | unlock_kernel(); | |
2930 | return 0; | |
2931 | } | |
2932 | ||
2933 | static /*const */ struct file_operations ali_audio_fops = { | |
2934 | .owner = THIS_MODULE, | |
2935 | .llseek = no_llseek, | |
2936 | .read = ali_read, | |
2937 | .write = ali_write, | |
2938 | .poll = ali_poll, | |
2939 | .ioctl = ali_ioctl, | |
2940 | .mmap = ali_mmap, | |
2941 | .open = ali_open, | |
2942 | .release = ali_release, | |
2943 | }; | |
2944 | ||
2945 | /* Read AC97 codec registers */ | |
2946 | static u16 ali_ac97_get(struct ac97_codec *dev, u8 reg) | |
2947 | { | |
2948 | struct ali_card *card = dev->private_data; | |
2949 | int count1 = 100; | |
2950 | char val; | |
2951 | unsigned short int data = 0, count, addr1, addr2 = 0; | |
2952 | ||
2953 | spin_lock(&card->ac97_lock); | |
2954 | while (count1-- && (inl(card->iobase + ALI_CAS) & 0x80000000)) | |
2955 | udelay(1); | |
2956 | ||
2957 | addr1 = reg; | |
2958 | reg |= 0x0080; | |
2959 | for (count = 0; count < 0x7f; count++) { | |
2960 | val = inb(card->iobase + ALI_CSPSR); | |
2961 | if (val & 0x08) | |
2962 | break; | |
2963 | } | |
2964 | if (count == 0x7f) | |
2965 | { | |
2966 | spin_unlock(&card->ac97_lock); | |
2967 | return -1; | |
2968 | } | |
2969 | outw(reg, (card->iobase + ALI_CPR) + 2); | |
2970 | for (count = 0; count < 0x7f; count++) { | |
2971 | val = inb(card->iobase + ALI_CSPSR); | |
2972 | if (val & 0x02) { | |
2973 | data = inw(card->iobase + ALI_SPR); | |
2974 | addr2 = inw((card->iobase + ALI_SPR) + 2); | |
2975 | break; | |
2976 | } | |
2977 | } | |
2978 | spin_unlock(&card->ac97_lock); | |
2979 | if (count == 0x7f) | |
2980 | return -1; | |
2981 | if (addr2 != addr1) | |
2982 | return -1; | |
2983 | return ((u16) data); | |
2984 | } | |
2985 | ||
2986 | /* write ac97 codec register */ | |
2987 | ||
2988 | static void ali_ac97_set(struct ac97_codec *dev, u8 reg, u16 data) | |
2989 | { | |
2990 | struct ali_card *card = dev->private_data; | |
2991 | int count1 = 100; | |
2992 | char val; | |
2993 | unsigned short int count; | |
2994 | ||
2995 | spin_lock(&card->ac97_lock); | |
2996 | while (count1-- && (inl(card->iobase + ALI_CAS) & 0x80000000)) | |
2997 | udelay(1); | |
2998 | ||
2999 | for (count = 0; count < 0x7f; count++) { | |
3000 | val = inb(card->iobase + ALI_CSPSR); | |
3001 | if (val & 0x08) | |
3002 | break; | |
3003 | } | |
3004 | if (count == 0x7f) { | |
3005 | printk(KERN_WARNING "ali_ac97_set: AC97 codec register access timed out. \n"); | |
3006 | spin_unlock(&card->ac97_lock); | |
3007 | return; | |
3008 | } | |
3009 | outw(data, (card->iobase + ALI_CPR)); | |
3010 | outb(reg, (card->iobase + ALI_CPR) + 2); | |
3011 | for (count = 0; count < 0x7f; count++) { | |
3012 | val = inb(card->iobase + ALI_CSPSR); | |
3013 | if (val & 0x01) | |
3014 | break; | |
3015 | } | |
3016 | spin_unlock(&card->ac97_lock); | |
3017 | if (count == 0x7f) | |
3018 | printk(KERN_WARNING "ali_ac97_set: AC97 codec register access timed out. \n"); | |
3019 | return; | |
3020 | } | |
3021 | ||
3022 | /* OSS /dev/mixer file operation methods */ | |
3023 | ||
3024 | static int ali_open_mixdev(struct inode *inode, struct file *file) | |
3025 | { | |
3026 | int i; | |
3027 | int minor = iminor(inode); | |
3028 | struct ali_card *card = devs; | |
3029 | for (card = devs; card != NULL; card = card->next) { | |
3030 | /* | |
3031 | * If we are initializing and then fail, card could go | |
3032 | * away unuexpectedly while we are in the for() loop. | |
3033 | * So, check for card on each iteration before we check | |
3034 | * for card->initializing to avoid a possible oops. | |
3035 | * This usually only matters for times when the driver is | |
3036 | * autoloaded by kmod. | |
3037 | */ | |
3038 | for (i = 0; i < 50 && card && card->initializing; i++) { | |
3039 | set_current_state(TASK_UNINTERRUPTIBLE); | |
3040 | schedule_timeout(HZ / 20); | |
3041 | } | |
3042 | for (i = 0; i < NR_AC97 && card && !card->initializing; i++) | |
3043 | if (card->ac97_codec[i] != NULL | |
3044 | && card->ac97_codec[i]->dev_mixer == minor) { | |
3045 | file->private_data = card->ac97_codec[i]; | |
3046 | return nonseekable_open(inode, file); | |
3047 | } | |
3048 | } | |
3049 | return -ENODEV; | |
3050 | } | |
3051 | ||
3052 | static int ali_ioctl_mixdev(struct inode *inode, | |
3053 | struct file *file, | |
3054 | unsigned int cmd, unsigned long arg) | |
3055 | { | |
3056 | struct ac97_codec *codec = (struct ac97_codec *) file->private_data; | |
3057 | return codec->mixer_ioctl(codec, cmd, arg); | |
3058 | } | |
3059 | ||
3060 | static /*const */ struct file_operations ali_mixer_fops = { | |
3061 | .owner = THIS_MODULE, | |
3062 | .llseek = no_llseek, | |
3063 | .ioctl = ali_ioctl_mixdev, | |
3064 | .open = ali_open_mixdev, | |
3065 | }; | |
3066 | ||
3067 | /* AC97 codec initialisation. These small functions exist so we don't | |
3068 | duplicate code between module init and apm resume */ | |
3069 | ||
3070 | static inline int ali_ac97_exists(struct ali_card *card, int ac97_number) | |
3071 | { | |
3072 | unsigned int i = 1; | |
3073 | u32 reg = inl(card->iobase + ALI_RTSR); | |
3074 | if (ac97_number) { | |
3075 | while (i < 100) { | |
3076 | ||
3077 | reg = inl(card->iobase + ALI_RTSR); | |
3078 | if (reg & 0x40) { | |
3079 | break; | |
3080 | } else { | |
3081 | outl(reg | 0x00000040, | |
3082 | card->iobase + 0x34); | |
3083 | udelay(1); | |
3084 | } | |
3085 | i++; | |
3086 | } | |
3087 | ||
3088 | } else { | |
3089 | while (i < 100) { | |
3090 | reg = inl(card->iobase + ALI_RTSR); | |
3091 | if (reg & 0x80) { | |
3092 | break; | |
3093 | } else { | |
3094 | outl(reg | 0x00000080, | |
3095 | card->iobase + 0x34); | |
3096 | udelay(1); | |
3097 | } | |
3098 | i++; | |
3099 | } | |
3100 | } | |
3101 | ||
3102 | if (ac97_number) | |
3103 | return reg & 0x40; | |
3104 | else | |
3105 | return reg & 0x80; | |
3106 | } | |
3107 | ||
3108 | static inline int ali_ac97_enable_variable_rate(struct ac97_codec *codec) | |
3109 | { | |
3110 | ali_ac97_set(codec, AC97_EXTENDED_STATUS, 9); | |
3111 | ali_ac97_set(codec, AC97_EXTENDED_STATUS, ali_ac97_get(codec, AC97_EXTENDED_STATUS) | 0xE800); | |
3112 | return (ali_ac97_get(codec, AC97_EXTENDED_STATUS) & 1); | |
3113 | } | |
3114 | ||
3115 | ||
3116 | static int ali_ac97_probe_and_powerup(struct ali_card *card, struct ac97_codec *codec) | |
3117 | { | |
3118 | /* Returns 0 on failure */ | |
3119 | int i; | |
3120 | u16 addr; | |
3121 | if (ac97_probe_codec(codec) == 0) | |
3122 | return 0; | |
3123 | /* ac97_probe_codec is success ,then begin to init codec */ | |
3124 | ali_ac97_set(codec, AC97_RESET, 0xffff); | |
3125 | if (card->channel[0].used == 1) { | |
3126 | ali_ac97_set(codec, AC97_RECORD_SELECT, 0x0000); | |
3127 | ali_ac97_set(codec, AC97_LINEIN_VOL, 0x0808); | |
3128 | ali_ac97_set(codec, AC97_RECORD_GAIN, 0x0F0F); | |
3129 | } | |
3130 | ||
3131 | if (card->channel[2].used == 1) //if MICin then init codec | |
3132 | { | |
3133 | ali_ac97_set(codec, AC97_RECORD_SELECT, 0x0000); | |
3134 | ali_ac97_set(codec, AC97_MIC_VOL, 0x8808); | |
3135 | ali_ac97_set(codec, AC97_RECORD_GAIN, 0x0F0F); | |
3136 | ali_ac97_set(codec, AC97_RECORD_GAIN_MIC, 0x0000); | |
3137 | } | |
3138 | ||
3139 | ali_ac97_set(codec, AC97_MASTER_VOL_STEREO, 0x0000); | |
3140 | ali_ac97_set(codec, AC97_HEADPHONE_VOL, 0x0000); | |
3141 | ali_ac97_set(codec, AC97_PCMOUT_VOL, 0x0000); | |
3142 | ali_ac97_set(codec, AC97_CD_VOL, 0x0808); | |
3143 | ali_ac97_set(codec, AC97_VIDEO_VOL, 0x0808); | |
3144 | ali_ac97_set(codec, AC97_AUX_VOL, 0x0808); | |
3145 | ali_ac97_set(codec, AC97_PHONE_VOL, 0x8048); | |
3146 | ali_ac97_set(codec, AC97_PCBEEP_VOL, 0x0000); | |
3147 | ali_ac97_set(codec, AC97_GENERAL_PURPOSE, AC97_GP_MIX); | |
3148 | ali_ac97_set(codec, AC97_MASTER_VOL_MONO, 0x0000); | |
3149 | ali_ac97_set(codec, 0x38, 0x0000); | |
3150 | addr = ali_ac97_get(codec, 0x2a); | |
3151 | ali_ac97_set(codec, 0x2a, addr | 0x0001); | |
3152 | addr = ali_ac97_get(codec, 0x2a); | |
3153 | addr = ali_ac97_get(codec, 0x28); | |
3154 | ali_ac97_set(codec, 0x2c, 0xbb80); | |
3155 | addr = ali_ac97_get(codec, 0x2c); | |
3156 | /* power it all up */ | |
3157 | ali_ac97_set(codec, AC97_POWER_CONTROL, | |
3158 | ali_ac97_get(codec, AC97_POWER_CONTROL) & ~0x7f00); | |
3159 | /* wait for analog ready */ | |
3160 | for (i = 10; i && ((ali_ac97_get(codec, AC97_POWER_CONTROL) & 0xf) != 0xf); i--) { | |
3161 | set_current_state(TASK_UNINTERRUPTIBLE); | |
3162 | schedule_timeout(HZ / 20); | |
3163 | } | |
3164 | /* FIXME !! */ | |
3165 | i++; | |
3166 | return i; | |
3167 | } | |
3168 | ||
3169 | ||
3170 | /* I clone ali5455(2.4.7 ) not clone i810_audio(2.4.18) */ | |
3171 | ||
3172 | static int ali_reset_5455(struct ali_card *card) | |
3173 | { | |
3174 | outl(0x80000003, card->iobase + ALI_SCR); | |
3175 | outl(0x83838383, card->iobase + ALI_FIFOCR1); | |
3176 | outl(0x83838383, card->iobase + ALI_FIFOCR2); | |
3177 | if (controller_pcmout_share_spdif_locked > 0) { | |
3178 | outl((inl(card->iobase + ALI_SPDIFICS) | 0x00000001), | |
3179 | card->iobase + ALI_SPDIFICS); | |
3180 | outl(0x0408000a, card->iobase + ALI_INTERFACECR); | |
3181 | } else { | |
3182 | if (codec_independent_spdif_locked > 0) { | |
3183 | outl((inl(card->iobase + ALI_SCR) | 0x00100000), card->iobase + ALI_SCR); // now I select slot 7 & 8 | |
3184 | outl(0x00200000, card->iobase + ALI_INTERFACECR); //enable codec independent spdifout | |
3185 | } else | |
3186 | outl(0x04080002, card->iobase + ALI_INTERFACECR); | |
3187 | } | |
3188 | ||
3189 | outl(0x00000000, card->iobase + ALI_INTERRUPTCR); | |
3190 | outl(0x00000000, card->iobase + ALI_INTERRUPTSR); | |
3191 | if (controller_independent_spdif_locked > 0) | |
3192 | outl((inl(card->iobase + ALI_SPDIFICS) | 0x00000001), | |
3193 | card->iobase + ALI_SPDIFICS); | |
3194 | return 1; | |
3195 | } | |
3196 | ||
3197 | ||
3198 | static int ali_ac97_random_init_stuff(struct ali_card | |
3199 | *card) | |
3200 | { | |
3201 | u32 reg = inl(card->iobase + ALI_SCR); | |
3202 | int i = 0; | |
3203 | reg = inl(card->iobase + ALI_SCR); | |
3204 | if ((reg & 2) == 0) /* Cold required */ | |
3205 | reg |= 2; | |
3206 | else | |
3207 | reg |= 1; /* Warm */ | |
3208 | reg &= ~0x80000000; /* ACLink on */ | |
3209 | outl(reg, card->iobase + ALI_SCR); | |
3210 | ||
3211 | while (i < 10) { | |
3212 | if ((inl(card->iobase + 0x18) & (1 << 1)) == 0) | |
3213 | break; | |
3214 | current->state = TASK_UNINTERRUPTIBLE; | |
3215 | schedule_timeout(HZ / 20); | |
3216 | i++; | |
3217 | } | |
3218 | if (i == 10) { | |
3219 | printk(KERN_ERR "ali_audio: AC'97 reset failed.\n"); | |
3220 | return 0; | |
3221 | } | |
3222 | ||
3223 | set_current_state(TASK_UNINTERRUPTIBLE); | |
3224 | schedule_timeout(HZ / 2); | |
3225 | return 1; | |
3226 | } | |
3227 | ||
3228 | /* AC97 codec initialisation. */ | |
3229 | ||
3230 | static int __devinit ali_ac97_init(struct ali_card *card) | |
3231 | { | |
3232 | int num_ac97 = 0; | |
3233 | int total_channels = 0; | |
3234 | struct ac97_codec *codec; | |
3235 | u16 eid; | |
3236 | ||
3237 | if (!ali_ac97_random_init_stuff(card)) | |
3238 | return 0; | |
3239 | ||
3240 | /* Number of channels supported */ | |
3241 | /* What about the codec? Just because the ICH supports */ | |
3242 | /* multiple channels doesn't mean the codec does. */ | |
3243 | /* we'll have to modify this in the codec section below */ | |
3244 | /* to reflect what the codec has. */ | |
3245 | /* ICH and ICH0 only support 2 channels so don't bother */ | |
3246 | /* to check.... */ | |
3247 | inl(card->iobase + ALI_CPR); | |
3248 | card->channels = 2; | |
3249 | ||
3250 | for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) { | |
3251 | ||
3252 | /* Assume codec isn't available until we go through the | |
3253 | * gauntlet below */ | |
3254 | card->ac97_codec[num_ac97] = NULL; | |
3255 | /* The ICH programmer's reference says you should */ | |
3256 | /* check the ready status before probing. So we chk */ | |
3257 | /* What do we do if it's not ready? Wait and try */ | |
3258 | /* again, or abort? */ | |
3259 | if (!ali_ac97_exists(card, num_ac97)) { | |
3260 | if (num_ac97 == 0) | |
3261 | printk(KERN_ERR "ali_audio: Primary codec not ready.\n"); | |
3262 | break; | |
3263 | } | |
3264 | ||
3265 | if ((codec = ac97_alloc_codec()) == NULL) | |
3266 | return -ENOMEM; | |
3267 | /* initialize some basic codec information, other fields will be filled | |
3268 | in ac97_probe_codec */ | |
3269 | codec->private_data = card; | |
3270 | codec->id = num_ac97; | |
3271 | codec->codec_read = ali_ac97_get; | |
3272 | codec->codec_write = ali_ac97_set; | |
3273 | if (!ali_ac97_probe_and_powerup(card, codec)) { | |
3274 | printk(KERN_ERR "ali_audio: timed out waiting for codec %d analog ready", | |
3275 | num_ac97); | |
3276 | kfree(codec); | |
3277 | break; /* it didn't work */ | |
3278 | } | |
3279 | ||
3280 | /* Store state information about S/PDIF transmitter */ | |
3281 | card->ac97_status = 0; | |
3282 | /* Don't attempt to get eid until powerup is complete */ | |
3283 | eid = ali_ac97_get(codec, AC97_EXTENDED_ID); | |
3284 | if (eid == 0xFFFF) { | |
3285 | printk(KERN_ERR "ali_audio: no codec attached ?\n"); | |
3286 | kfree(codec); | |
3287 | break; | |
3288 | } | |
3289 | ||
3290 | card->ac97_features = eid; | |
3291 | /* Now check the codec for useful features to make up for | |
3292 | the dumbness of the ali5455 hardware engine */ | |
3293 | if (!(eid & 0x0001)) | |
3294 | printk(KERN_WARNING | |
3295 | "ali_audio: only 48Khz playback available.\n"); | |
3296 | else { | |
3297 | if (!ali_ac97_enable_variable_rate(codec)) { | |
3298 | printk(KERN_WARNING | |
3299 | "ali_audio: Codec refused to allow VRA, using 48Khz only.\n"); | |
3300 | card->ac97_features &= ~1; | |
3301 | } | |
3302 | } | |
3303 | ||
3304 | /* Determine how many channels the codec(s) support */ | |
3305 | /* - The primary codec always supports 2 */ | |
3306 | /* - If the codec supports AMAP, surround DACs will */ | |
3307 | /* automaticlly get assigned to slots. */ | |
3308 | /* * Check for surround DACs and increment if */ | |
3309 | /* found. */ | |
3310 | /* - Else check if the codec is revision 2.2 */ | |
3311 | /* * If surround DACs exist, assign them to slots */ | |
3312 | /* and increment channel count. */ | |
3313 | ||
3314 | /* All of this only applies to ICH2 and above. ICH */ | |
3315 | /* and ICH0 only support 2 channels. ICH2 will only */ | |
3316 | /* support multiple codecs in a "split audio" config. */ | |
3317 | /* as described above. */ | |
3318 | ||
3319 | /* TODO: Remove all the debugging messages! */ | |
3320 | ||
3321 | if ((eid & 0xc000) == 0) /* primary codec */ | |
3322 | total_channels += 2; | |
3323 | if ((codec->dev_mixer = register_sound_mixer(&ali_mixer_fops, -1)) < 0) { | |
3324 | printk(KERN_ERR "ali_audio: couldn't register mixer!\n"); | |
3325 | kfree(codec); | |
3326 | break; | |
3327 | } | |
3328 | card->ac97_codec[num_ac97] = codec; | |
3329 | } | |
3330 | /* pick the minimum of channels supported by ICHx or codec(s) */ | |
3331 | card->channels = (card->channels > total_channels) ? total_channels : card->channels; | |
3332 | return num_ac97; | |
3333 | } | |
3334 | ||
3335 | static void __devinit ali_configure_clocking(void) | |
3336 | { | |
3337 | struct ali_card *card; | |
3338 | struct ali_state *state; | |
3339 | struct dmabuf *dmabuf; | |
3340 | unsigned int i, offset, new_offset; | |
3341 | unsigned long flags; | |
3342 | card = devs; | |
3343 | ||
3344 | /* We could try to set the clocking for multiple cards, but can you even have | |
3345 | * more than one ali in a machine? Besides, clocking is global, so unless | |
3346 | * someone actually thinks more than one ali in a machine is possible and | |
3347 | * decides to rewrite that little bit, setting the rate for more than one card | |
3348 | * is a waste of time. | |
3349 | */ | |
3350 | if (card != NULL) { | |
3351 | state = card->states[0] = (struct ali_state *) | |
3352 | kmalloc(sizeof(struct ali_state), GFP_KERNEL); | |
3353 | if (state == NULL) | |
3354 | return; | |
3355 | memset(state, 0, sizeof(struct ali_state)); | |
3356 | dmabuf = &state->dmabuf; | |
3357 | dmabuf->write_channel = card->alloc_pcm_channel(card); | |
3358 | state->virt = 0; | |
3359 | state->card = card; | |
3360 | state->magic = ALI5455_STATE_MAGIC; | |
3361 | init_waitqueue_head(&dmabuf->wait); | |
3362 | init_MUTEX(&state->open_sem); | |
3363 | dmabuf->fmt = ALI5455_FMT_STEREO | ALI5455_FMT_16BIT; | |
3364 | dmabuf->trigger = PCM_ENABLE_OUTPUT; | |
3365 | ali_set_dac_rate(state, 48000); | |
3366 | if (prog_dmabuf(state, 0) != 0) | |
3367 | goto config_out_nodmabuf; | |
3368 | ||
3369 | if (dmabuf->dmasize < 16384) | |
3370 | goto config_out; | |
3371 | ||
3372 | dmabuf->count = dmabuf->dmasize; | |
3373 | outb(31, card->iobase + dmabuf->write_channel->port + OFF_LVI); | |
3374 | ||
3375 | local_irq_save(flags); | |
3376 | start_dac(state); | |
3377 | offset = ali_get_dma_addr(state, 0); | |
3378 | mdelay(50); | |
3379 | new_offset = ali_get_dma_addr(state, 0); | |
3380 | stop_dac(state); | |
3381 | ||
3382 | outb(2, card->iobase + dmabuf->write_channel->port + OFF_CR); | |
3383 | local_irq_restore(flags); | |
3384 | ||
3385 | i = new_offset - offset; | |
3386 | ||
3387 | if (i == 0) | |
3388 | goto config_out; | |
3389 | i = i / 4 * 20; | |
3390 | if (i > 48500 || i < 47500) { | |
3391 | clocking = clocking * clocking / i; | |
3392 | } | |
3393 | config_out: | |
3394 | dealloc_dmabuf(state); | |
3395 | config_out_nodmabuf: | |
3396 | state->card->free_pcm_channel(state->card, state->dmabuf. write_channel->num); | |
3397 | kfree(state); | |
3398 | card->states[0] = NULL; | |
3399 | } | |
3400 | } | |
3401 | ||
3402 | /* install the driver, we do not allocate hardware channel nor DMA buffer now, they are defered | |
3403 | until "ACCESS" time (in prog_dmabuf called by open/read/write/ioctl/mmap) */ | |
3404 | ||
3405 | static int __devinit ali_probe(struct pci_dev *pci_dev, | |
3406 | const struct pci_device_id *pci_id) | |
3407 | { | |
3408 | struct ali_card *card; | |
3409 | if (pci_enable_device(pci_dev)) | |
3410 | return -EIO; | |
3411 | if (pci_set_dma_mask(pci_dev, ALI5455_DMA_MASK)) { | |
3412 | printk(KERN_ERR "ali5455: architecture does not support" | |
3413 | " 32bit PCI busmaster DMA\n"); | |
3414 | return -ENODEV; | |
3415 | } | |
3416 | ||
3417 | if ((card = kmalloc(sizeof(struct ali_card), GFP_KERNEL)) == NULL) { | |
3418 | printk(KERN_ERR "ali_audio: out of memory\n"); | |
3419 | return -ENOMEM; | |
3420 | } | |
3421 | memset(card, 0, sizeof(*card)); | |
3422 | card->initializing = 1; | |
3423 | card->iobase = pci_resource_start(pci_dev, 0); | |
3424 | card->pci_dev = pci_dev; | |
3425 | card->pci_id = pci_id->device; | |
3426 | card->irq = pci_dev->irq; | |
3427 | card->next = devs; | |
3428 | card->magic = ALI5455_CARD_MAGIC; | |
3429 | #ifdef CONFIG_PM | |
3430 | card->pm_suspended = 0; | |
3431 | #endif | |
3432 | spin_lock_init(&card->lock); | |
3433 | spin_lock_init(&card->ac97_lock); | |
3434 | devs = card; | |
3435 | pci_set_master(pci_dev); | |
3436 | printk(KERN_INFO "ali: %s found at IO 0x%04lx, IRQ %d\n", | |
3437 | card_names[pci_id->driver_data], card->iobase, card->irq); | |
3438 | card->alloc_pcm_channel = ali_alloc_pcm_channel; | |
3439 | card->alloc_rec_pcm_channel = ali_alloc_rec_pcm_channel; | |
3440 | card->alloc_rec_mic_channel = ali_alloc_rec_mic_channel; | |
3441 | card->alloc_codec_spdifout_channel = ali_alloc_codec_spdifout_channel; | |
3442 | card->alloc_controller_spdifout_channel = ali_alloc_controller_spdifout_channel; | |
3443 | card->free_pcm_channel = ali_free_pcm_channel; | |
3444 | card->channel[0].offset = 0; | |
3445 | card->channel[0].port = 0x40; | |
3446 | card->channel[0].num = 0; | |
3447 | card->channel[1].offset = 0; | |
3448 | card->channel[1].port = 0x50; | |
3449 | card->channel[1].num = 1; | |
3450 | card->channel[2].offset = 0; | |
3451 | card->channel[2].port = 0x60; | |
3452 | card->channel[2].num = 2; | |
3453 | card->channel[3].offset = 0; | |
3454 | card->channel[3].port = 0x70; | |
3455 | card->channel[3].num = 3; | |
3456 | card->channel[4].offset = 0; | |
3457 | card->channel[4].port = 0xb0; | |
3458 | card->channel[4].num = 4; | |
3459 | /* claim our iospace and irq */ | |
3460 | request_region(card->iobase, 256, card_names[pci_id->driver_data]); | |
3461 | if (request_irq(card->irq, &ali_interrupt, SA_SHIRQ, | |
3462 | card_names[pci_id->driver_data], card)) { | |
3463 | printk(KERN_ERR "ali_audio: unable to allocate irq %d\n", | |
3464 | card->irq); | |
3465 | release_region(card->iobase, 256); | |
3466 | kfree(card); | |
3467 | return -ENODEV; | |
3468 | } | |
3469 | ||
3470 | if (ali_reset_5455(card) <= 0) { | |
3471 | unregister_sound_dsp(card->dev_audio); | |
3472 | release_region(card->iobase, 256); | |
3473 | free_irq(card->irq, card); | |
3474 | kfree(card); | |
3475 | return -ENODEV; | |
3476 | } | |
3477 | ||
3478 | /* initialize AC97 codec and register /dev/mixer */ | |
3479 | if (ali_ac97_init(card) < 0) { | |
3480 | release_region(card->iobase, 256); | |
3481 | free_irq(card->irq, card); | |
3482 | kfree(card); | |
3483 | return -ENODEV; | |
3484 | } | |
3485 | ||
3486 | pci_set_drvdata(pci_dev, card); | |
3487 | ||
3488 | if (clocking == 0) { | |
3489 | clocking = 48000; | |
3490 | ali_configure_clocking(); | |
3491 | } | |
3492 | ||
3493 | /* register /dev/dsp */ | |
3494 | if ((card->dev_audio = register_sound_dsp(&ali_audio_fops, -1)) < 0) { | |
3495 | int i; | |
3496 | printk(KERN_ERR"ali_audio: couldn't register DSP device!\n"); | |
3497 | release_region(card->iobase, 256); | |
3498 | free_irq(card->irq, card); | |
3499 | for (i = 0; i < NR_AC97; i++) | |
3500 | if (card->ac97_codec[i] != NULL) { | |
3501 | unregister_sound_mixer(card->ac97_codec[i]->dev_mixer); | |
3502 | kfree(card->ac97_codec[i]); | |
3503 | } | |
3504 | kfree(card); | |
3505 | return -ENODEV; | |
3506 | } | |
3507 | card->initializing = 0; | |
3508 | return 0; | |
3509 | } | |
3510 | ||
3511 | static void __devexit ali_remove(struct pci_dev *pci_dev) | |
3512 | { | |
3513 | int i; | |
3514 | struct ali_card *card = pci_get_drvdata(pci_dev); | |
3515 | /* free hardware resources */ | |
3516 | free_irq(card->irq, devs); | |
3517 | release_region(card->iobase, 256); | |
3518 | /* unregister audio devices */ | |
3519 | for (i = 0; i < NR_AC97; i++) | |
3520 | if (card->ac97_codec[i] != NULL) { | |
3521 | unregister_sound_mixer(card->ac97_codec[i]-> | |
3522 | dev_mixer); | |
3523 | ac97_release_codec(card->ac97_codec[i]); | |
3524 | card->ac97_codec[i] = NULL; | |
3525 | } | |
3526 | unregister_sound_dsp(card->dev_audio); | |
3527 | kfree(card); | |
3528 | } | |
3529 | ||
3530 | #ifdef CONFIG_PM | |
3531 | static int ali_pm_suspend(struct pci_dev *dev, pm_message_t pm_state) | |
3532 | { | |
3533 | struct ali_card *card = pci_get_drvdata(dev); | |
3534 | struct ali_state *state; | |
3535 | unsigned long flags; | |
3536 | struct dmabuf *dmabuf; | |
3537 | int i, num_ac97; | |
3538 | ||
3539 | if (!card) | |
3540 | return 0; | |
3541 | spin_lock_irqsave(&card->lock, flags); | |
3542 | card->pm_suspended = 1; | |
3543 | for (i = 0; i < NR_HW_CH; i++) { | |
3544 | state = card->states[i]; | |
3545 | if (!state) | |
3546 | continue; | |
3547 | /* this happens only if there are open files */ | |
3548 | dmabuf = &state->dmabuf; | |
3549 | if (dmabuf->enable & DAC_RUNNING || | |
3550 | (dmabuf->count | |
3551 | && (dmabuf->trigger & PCM_ENABLE_OUTPUT))) { | |
3552 | state->pm_saved_dac_rate = dmabuf->rate; | |
3553 | stop_dac(state); | |
3554 | } else { | |
3555 | state->pm_saved_dac_rate = 0; | |
3556 | } | |
3557 | if (dmabuf->enable & ADC_RUNNING) { | |
3558 | state->pm_saved_adc_rate = dmabuf->rate; | |
3559 | stop_adc(state); | |
3560 | } else { | |
3561 | state->pm_saved_adc_rate = 0; | |
3562 | } | |
3563 | dmabuf->ready = 0; | |
3564 | dmabuf->swptr = dmabuf->hwptr = 0; | |
3565 | dmabuf->count = dmabuf->total_bytes = 0; | |
3566 | } | |
3567 | ||
3568 | spin_unlock_irqrestore(&card->lock, flags); | |
3569 | /* save mixer settings */ | |
3570 | for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) { | |
3571 | struct ac97_codec *codec = card->ac97_codec[num_ac97]; | |
3572 | if (!codec) | |
3573 | continue; | |
3574 | for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) { | |
3575 | if ((supported_mixer(codec, i)) && (codec->read_mixer)) { | |
3576 | card->pm_saved_mixer_settings[i][num_ac97] = codec->read_mixer(codec, i); | |
3577 | } | |
3578 | } | |
3579 | } | |
3580 | pci_save_state(dev); /* XXX do we need this? */ | |
3581 | pci_disable_device(dev); /* disable busmastering */ | |
3582 | pci_set_power_state(dev, 3); /* Zzz. */ | |
3583 | return 0; | |
3584 | } | |
3585 | ||
3586 | ||
3587 | static int ali_pm_resume(struct pci_dev *dev) | |
3588 | { | |
3589 | int num_ac97, i = 0; | |
3590 | struct ali_card *card = pci_get_drvdata(dev); | |
3591 | pci_enable_device(dev); | |
3592 | pci_restore_state(dev); | |
3593 | /* observation of a toshiba portege 3440ct suggests that the | |
3594 | hardware has to be more or less completely reinitialized from | |
3595 | scratch after an apm suspend. Works For Me. -dan */ | |
3596 | ali_ac97_random_init_stuff(card); | |
3597 | for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) { | |
3598 | struct ac97_codec *codec = card->ac97_codec[num_ac97]; | |
3599 | /* check they haven't stolen the hardware while we were | |
3600 | away */ | |
3601 | if (!codec || !ali_ac97_exists(card, num_ac97)) { | |
3602 | if (num_ac97) | |
3603 | continue; | |
3604 | else | |
3605 | BUG(); | |
3606 | } | |
3607 | if (!ali_ac97_probe_and_powerup(card, codec)) | |
3608 | BUG(); | |
3609 | if ((card->ac97_features & 0x0001)) { | |
3610 | /* at probe time we found we could do variable | |
3611 | rates, but APM suspend has made it forget | |
3612 | its magical powers */ | |
3613 | if (!ali_ac97_enable_variable_rate(codec)) | |
3614 | BUG(); | |
3615 | } | |
3616 | /* we lost our mixer settings, so restore them */ | |
3617 | for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) { | |
3618 | if (supported_mixer(codec, i)) { | |
3619 | int val = card->pm_saved_mixer_settings[i][num_ac97]; | |
3620 | codec->mixer_state[i] = val; | |
3621 | codec->write_mixer(codec, i, | |
3622 | (val & 0xff), | |
3623 | ((val >> 8) & 0xff)); | |
3624 | } | |
3625 | } | |
3626 | } | |
3627 | ||
3628 | /* we need to restore the sample rate from whatever it was */ | |
3629 | for (i = 0; i < NR_HW_CH; i++) { | |
3630 | struct ali_state *state = card->states[i]; | |
3631 | if (state) { | |
3632 | if (state->pm_saved_adc_rate) | |
3633 | ali_set_adc_rate(state, state->pm_saved_adc_rate); | |
3634 | if (state->pm_saved_dac_rate) | |
3635 | ali_set_dac_rate(state, state->pm_saved_dac_rate); | |
3636 | } | |
3637 | } | |
3638 | ||
3639 | card->pm_suspended = 0; | |
3640 | /* any processes that were reading/writing during the suspend | |
3641 | probably ended up here */ | |
3642 | for (i = 0; i < NR_HW_CH; i++) { | |
3643 | struct ali_state *state = card->states[i]; | |
3644 | if (state) | |
3645 | wake_up(&state->dmabuf.wait); | |
3646 | } | |
3647 | return 0; | |
3648 | } | |
3649 | #endif /* CONFIG_PM */ | |
3650 | ||
3651 | MODULE_AUTHOR(""); | |
3652 | MODULE_DESCRIPTION("ALI 5455 audio support"); | |
3653 | MODULE_LICENSE("GPL"); | |
3654 | module_param(clocking, int, 0); | |
3655 | /* FIXME: bool? */ | |
3656 | module_param(strict_clocking, uint, 0); | |
3657 | module_param(codec_pcmout_share_spdif_locked, uint, 0); | |
3658 | module_param(codec_independent_spdif_locked, uint, 0); | |
3659 | module_param(controller_pcmout_share_spdif_locked, uint, 0); | |
3660 | module_param(controller_independent_spdif_locked, uint, 0); | |
3661 | #define ALI5455_MODULE_NAME "ali5455" | |
3662 | static struct pci_driver ali_pci_driver = { | |
3663 | .name = ALI5455_MODULE_NAME, | |
3664 | .id_table = ali_pci_tbl, | |
3665 | .probe = ali_probe, | |
3666 | .remove = __devexit_p(ali_remove), | |
3667 | #ifdef CONFIG_PM | |
3668 | .suspend = ali_pm_suspend, | |
3669 | .resume = ali_pm_resume, | |
3670 | #endif /* CONFIG_PM */ | |
3671 | }; | |
3672 | ||
3673 | static int __init ali_init_module(void) | |
3674 | { | |
3675 | printk(KERN_INFO "ALI 5455 + AC97 Audio, version " | |
3676 | DRIVER_VERSION ", " __TIME__ " " __DATE__ "\n"); | |
3677 | ||
3678 | if (codec_independent_spdif_locked > 0) { | |
3679 | if (codec_independent_spdif_locked == 32000 | |
3680 | || codec_independent_spdif_locked == 44100 | |
3681 | || codec_independent_spdif_locked == 48000) { | |
3682 | printk(KERN_INFO "ali_audio: Enabling S/PDIF at sample rate %dHz.\n", codec_independent_spdif_locked); | |
3683 | } else { | |
3684 | printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n"); | |
3685 | codec_independent_spdif_locked = 0; | |
3686 | } | |
3687 | } | |
3688 | if (controller_independent_spdif_locked > 0) { | |
3689 | if (controller_independent_spdif_locked == 32000 | |
3690 | || controller_independent_spdif_locked == 44100 | |
3691 | || controller_independent_spdif_locked == 48000) { | |
3692 | printk(KERN_INFO "ali_audio: Enabling S/PDIF at sample rate %dHz.\n", controller_independent_spdif_locked); | |
3693 | } else { | |
3694 | printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n"); | |
3695 | controller_independent_spdif_locked = 0; | |
3696 | } | |
3697 | } | |
3698 | ||
3699 | if (codec_pcmout_share_spdif_locked > 0) { | |
3700 | if (codec_pcmout_share_spdif_locked == 32000 | |
3701 | || codec_pcmout_share_spdif_locked == 44100 | |
3702 | || codec_pcmout_share_spdif_locked == 48000) { | |
3703 | printk(KERN_INFO "ali_audio: Enabling S/PDIF at sample rate %dHz.\n", codec_pcmout_share_spdif_locked); | |
3704 | } else { | |
3705 | printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n"); | |
3706 | codec_pcmout_share_spdif_locked = 0; | |
3707 | } | |
3708 | } | |
3709 | if (controller_pcmout_share_spdif_locked > 0) { | |
3710 | if (controller_pcmout_share_spdif_locked == 32000 | |
3711 | || controller_pcmout_share_spdif_locked == 44100 | |
3712 | || controller_pcmout_share_spdif_locked == 48000) { | |
3713 | printk(KERN_INFO "ali_audio: Enabling controller S/PDIF at sample rate %dHz.\n", controller_pcmout_share_spdif_locked); | |
3714 | } else { | |
3715 | printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n"); | |
3716 | controller_pcmout_share_spdif_locked = 0; | |
3717 | } | |
3718 | } | |
3719 | return pci_register_driver(&ali_pci_driver); | |
3720 | } | |
3721 | ||
3722 | static void __exit ali_cleanup_module(void) | |
3723 | { | |
3724 | pci_unregister_driver(&ali_pci_driver); | |
3725 | } | |
3726 | ||
3727 | module_init(ali_init_module); | |
3728 | module_exit(ali_cleanup_module); | |
3729 | /* | |
3730 | Local Variables: | |
3731 | c-basic-offset: 8 | |
3732 | End: | |
3733 | */ |