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Diffstat (limited to 'sound/oss/ali5455.c')
-rw-r--r-- | sound/oss/ali5455.c | 3735 |
1 files changed, 0 insertions, 3735 deletions
diff --git a/sound/oss/ali5455.c b/sound/oss/ali5455.c deleted file mode 100644 index 70dcd703a66f..000000000000 --- a/sound/oss/ali5455.c +++ /dev/null | |||
@@ -1,3735 +0,0 @@ | |||
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 <linux/mutex.h> | ||
68 | |||
69 | #include <asm/uaccess.h> | ||
70 | |||
71 | #ifndef PCI_DEVICE_ID_ALI_5455 | ||
72 | #define PCI_DEVICE_ID_ALI_5455 0x5455 | ||
73 | #endif | ||
74 | |||
75 | #ifndef PCI_VENDOR_ID_ALI | ||
76 | #define PCI_VENDOR_ID_ALI 0x10b9 | ||
77 | #endif | ||
78 | |||
79 | static int strict_clocking = 0; | ||
80 | static unsigned int clocking = 0; | ||
81 | static unsigned int codec_pcmout_share_spdif_locked = 0; | ||
82 | static unsigned int codec_independent_spdif_locked = 0; | ||
83 | static unsigned int controller_pcmout_share_spdif_locked = 0; | ||
84 | static unsigned int controller_independent_spdif_locked = 0; | ||
85 | static unsigned int globel = 0; | ||
86 | |||
87 | #define ADC_RUNNING 1 | ||
88 | #define DAC_RUNNING 2 | ||
89 | #define CODEC_SPDIFOUT_RUNNING 8 | ||
90 | #define CONTROLLER_SPDIFOUT_RUNNING 4 | ||
91 | |||
92 | #define SPDIF_ENABLE_OUTPUT 4 /* bits 0,1 are PCM */ | ||
93 | |||
94 | #define ALI5455_FMT_16BIT 1 | ||
95 | #define ALI5455_FMT_STEREO 2 | ||
96 | #define ALI5455_FMT_MASK 3 | ||
97 | |||
98 | #define SPDIF_ON 0x0004 | ||
99 | #define SURR_ON 0x0010 | ||
100 | #define CENTER_LFE_ON 0x0020 | ||
101 | #define VOL_MUTED 0x8000 | ||
102 | |||
103 | |||
104 | #define ALI_SPDIF_OUT_CH_STATUS 0xbf | ||
105 | /* the 810's array of pointers to data buffers */ | ||
106 | |||
107 | struct sg_item { | ||
108 | #define BUSADDR_MASK 0xFFFFFFFE | ||
109 | u32 busaddr; | ||
110 | #define CON_IOC 0x80000000 /* interrupt on completion */ | ||
111 | #define CON_BUFPAD 0x40000000 /* pad underrun with last sample, else 0 */ | ||
112 | #define CON_BUFLEN_MASK 0x0000ffff /* buffer length in samples */ | ||
113 | u32 control; | ||
114 | }; | ||
115 | |||
116 | /* an instance of the ali channel */ | ||
117 | #define SG_LEN 32 | ||
118 | struct ali_channel { | ||
119 | /* these sg guys should probably be allocated | ||
120 | separately as nocache. Must be 8 byte aligned */ | ||
121 | struct sg_item sg[SG_LEN]; /* 32*8 */ | ||
122 | u32 offset; /* 4 */ | ||
123 | u32 port; /* 4 */ | ||
124 | u32 used; | ||
125 | u32 num; | ||
126 | }; | ||
127 | |||
128 | /* | ||
129 | * we have 3 separate dma engines. pcm in, pcm out, and mic. | ||
130 | * each dma engine has controlling registers. These goofy | ||
131 | * names are from the datasheet, but make it easy to write | ||
132 | * code while leafing through it. | ||
133 | */ | ||
134 | |||
135 | #define ENUM_ENGINE(PRE,DIG) \ | ||
136 | enum { \ | ||
137 | PRE##_BDBAR = 0x##DIG##0, /* Buffer Descriptor list Base Address */ \ | ||
138 | PRE##_CIV = 0x##DIG##4, /* Current Index Value */ \ | ||
139 | PRE##_LVI = 0x##DIG##5, /* Last Valid Index */ \ | ||
140 | PRE##_SR = 0x##DIG##6, /* Status Register */ \ | ||
141 | PRE##_PICB = 0x##DIG##8, /* Position In Current Buffer */ \ | ||
142 | PRE##_CR = 0x##DIG##b /* Control Register */ \ | ||
143 | } | ||
144 | |||
145 | ENUM_ENGINE(OFF, 0); /* Offsets */ | ||
146 | ENUM_ENGINE(PI, 4); /* PCM In */ | ||
147 | ENUM_ENGINE(PO, 5); /* PCM Out */ | ||
148 | ENUM_ENGINE(MC, 6); /* Mic In */ | ||
149 | ENUM_ENGINE(CODECSPDIFOUT, 7); /* CODEC SPDIF OUT */ | ||
150 | ENUM_ENGINE(CONTROLLERSPDIFIN, A); /* CONTROLLER SPDIF In */ | ||
151 | ENUM_ENGINE(CONTROLLERSPDIFOUT, B); /* CONTROLLER SPDIF OUT */ | ||
152 | |||
153 | |||
154 | enum { | ||
155 | ALI_SCR = 0x00, /* System Control Register */ | ||
156 | ALI_SSR = 0x04, /* System Status Register */ | ||
157 | ALI_DMACR = 0x08, /* DMA Control Register */ | ||
158 | ALI_FIFOCR1 = 0x0c, /* FIFO Control Register 1 */ | ||
159 | ALI_INTERFACECR = 0x10, /* Interface Control Register */ | ||
160 | ALI_INTERRUPTCR = 0x14, /* Interrupt control Register */ | ||
161 | ALI_INTERRUPTSR = 0x18, /* Interrupt Status Register */ | ||
162 | ALI_FIFOCR2 = 0x1c, /* FIFO Control Register 2 */ | ||
163 | ALI_CPR = 0x20, /* Command Port Register */ | ||
164 | ALI_SPR = 0x24, /* Status Port Register */ | ||
165 | ALI_FIFOCR3 = 0x2c, /* FIFO Control Register 3 */ | ||
166 | ALI_TTSR = 0x30, /* Transmit Tag Slot Register */ | ||
167 | ALI_RTSR = 0x34, /* Receive Tag Slot Register */ | ||
168 | ALI_CSPSR = 0x38, /* Command/Status Port Status Register */ | ||
169 | ALI_CAS = 0x3c, /* Codec Write Semaphore Register */ | ||
170 | ALI_SPDIFCSR = 0xf8, /* spdif channel status register */ | ||
171 | ALI_SPDIFICS = 0xfc /* spdif interface control/status */ | ||
172 | }; | ||
173 | |||
174 | // x-status register(x:pcm in ,pcm out, mic in,) | ||
175 | /* interrupts for a dma engine */ | ||
176 | #define DMA_INT_FIFO (1<<4) /* fifo under/over flow */ | ||
177 | #define DMA_INT_COMPLETE (1<<3) /* buffer read/write complete and ioc set */ | ||
178 | #define DMA_INT_LVI (1<<2) /* last valid done */ | ||
179 | #define DMA_INT_CELV (1<<1) /* last valid is current */ | ||
180 | #define DMA_INT_DCH (1) /* DMA Controller Halted (happens on LVI interrupts) */ //not eqult intel | ||
181 | #define DMA_INT_MASK (DMA_INT_FIFO|DMA_INT_COMPLETE|DMA_INT_LVI) | ||
182 | |||
183 | /* interrupts for the whole chip */// by interrupt status register finish | ||
184 | |||
185 | #define INT_SPDIFOUT (1<<23) /* controller spdif out INTERRUPT */ | ||
186 | #define INT_SPDIFIN (1<<22) | ||
187 | #define INT_CODECSPDIFOUT (1<<19) | ||
188 | #define INT_MICIN (1<<18) | ||
189 | #define INT_PCMOUT (1<<17) | ||
190 | #define INT_PCMIN (1<<16) | ||
191 | #define INT_CPRAIS (1<<7) | ||
192 | #define INT_SPRAIS (1<<5) | ||
193 | #define INT_GPIO (1<<1) | ||
194 | #define INT_MASK (INT_SPDIFOUT|INT_CODECSPDIFOUT|INT_MICIN|INT_PCMOUT|INT_PCMIN) | ||
195 | |||
196 | #define DRIVER_VERSION "0.02ac" | ||
197 | |||
198 | /* magic numbers to protect our data structures */ | ||
199 | #define ALI5455_CARD_MAGIC 0x5072696E /* "Prin" */ | ||
200 | #define ALI5455_STATE_MAGIC 0x63657373 /* "cess" */ | ||
201 | #define ALI5455_DMA_MASK 0xffffffff /* DMA buffer mask for pci_alloc_consist */ | ||
202 | #define NR_HW_CH 5 //I think 5 channel | ||
203 | |||
204 | /* maxinum number of AC97 codecs connected, AC97 2.0 defined 4 */ | ||
205 | #define NR_AC97 2 | ||
206 | |||
207 | /* Please note that an 8bit mono stream is not valid on this card, you must have a 16bit */ | ||
208 | /* stream at a minimum for this card to be happy */ | ||
209 | static const unsigned sample_size[] = { 1, 2, 2, 4 }; | ||
210 | /* Samples are 16bit values, so we are shifting to a word, not to a byte, hence shift */ | ||
211 | /* values are one less than might be expected */ | ||
212 | static const unsigned sample_shift[] = { -1, 0, 0, 1 }; | ||
213 | |||
214 | #define ALI5455 | ||
215 | static char *card_names[] = { | ||
216 | "ALI 5455" | ||
217 | }; | ||
218 | |||
219 | static struct pci_device_id ali_pci_tbl[] = { | ||
220 | {PCI_VENDOR_ID_ALI, PCI_DEVICE_ID_ALI_5455, | ||
221 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, ALI5455}, | ||
222 | {0,} | ||
223 | }; | ||
224 | |||
225 | MODULE_DEVICE_TABLE(pci, ali_pci_tbl); | ||
226 | |||
227 | #ifdef CONFIG_PM | ||
228 | #define PM_SUSPENDED(card) (card->pm_suspended) | ||
229 | #else | ||
230 | #define PM_SUSPENDED(card) (0) | ||
231 | #endif | ||
232 | |||
233 | /* "software" or virtual channel, an instance of opened /dev/dsp */ | ||
234 | struct ali_state { | ||
235 | unsigned int magic; | ||
236 | struct ali_card *card; /* Card info */ | ||
237 | |||
238 | /* single open lock mechanism, only used for recording */ | ||
239 | struct mutex open_mutex; | ||
240 | wait_queue_head_t open_wait; | ||
241 | |||
242 | /* file mode */ | ||
243 | mode_t open_mode; | ||
244 | |||
245 | /* virtual channel number */ | ||
246 | int virt; | ||
247 | |||
248 | #ifdef CONFIG_PM | ||
249 | unsigned int pm_saved_dac_rate, pm_saved_adc_rate; | ||
250 | #endif | ||
251 | struct dmabuf { | ||
252 | /* wave sample stuff */ | ||
253 | unsigned int rate; | ||
254 | unsigned char fmt, enable, trigger; | ||
255 | |||
256 | /* hardware channel */ | ||
257 | struct ali_channel *read_channel; | ||
258 | struct ali_channel *write_channel; | ||
259 | struct ali_channel *codec_spdifout_channel; | ||
260 | struct ali_channel *controller_spdifout_channel; | ||
261 | |||
262 | /* OSS buffer management stuff */ | ||
263 | void *rawbuf; | ||
264 | dma_addr_t dma_handle; | ||
265 | unsigned buforder; | ||
266 | unsigned numfrag; | ||
267 | unsigned fragshift; | ||
268 | |||
269 | /* our buffer acts like a circular ring */ | ||
270 | unsigned hwptr; /* where dma last started, updated by update_ptr */ | ||
271 | unsigned swptr; /* where driver last clear/filled, updated by read/write */ | ||
272 | int count; /* bytes to be consumed or been generated by dma machine */ | ||
273 | unsigned total_bytes; /* total bytes dmaed by hardware */ | ||
274 | |||
275 | unsigned error; /* number of over/underruns */ | ||
276 | wait_queue_head_t wait; /* put process on wait queue when no more space in buffer */ | ||
277 | |||
278 | /* redundant, but makes calculations easier */ | ||
279 | /* what the hardware uses */ | ||
280 | unsigned dmasize; | ||
281 | unsigned fragsize; | ||
282 | unsigned fragsamples; | ||
283 | |||
284 | /* what we tell the user to expect */ | ||
285 | unsigned userfrags; | ||
286 | unsigned userfragsize; | ||
287 | |||
288 | /* OSS stuff */ | ||
289 | unsigned mapped:1; | ||
290 | unsigned ready:1; | ||
291 | unsigned update_flag; | ||
292 | unsigned ossfragsize; | ||
293 | unsigned ossmaxfrags; | ||
294 | unsigned subdivision; | ||
295 | } dmabuf; | ||
296 | }; | ||
297 | |||
298 | |||
299 | struct ali_card { | ||
300 | struct ali_channel channel[5]; | ||
301 | unsigned int magic; | ||
302 | |||
303 | /* We keep ali5455 cards in a linked list */ | ||
304 | struct ali_card *next; | ||
305 | |||
306 | /* The ali has a certain amount of cross channel interaction | ||
307 | so we use a single per card lock */ | ||
308 | spinlock_t lock; | ||
309 | spinlock_t ac97_lock; | ||
310 | |||
311 | /* PCI device stuff */ | ||
312 | struct pci_dev *pci_dev; | ||
313 | u16 pci_id; | ||
314 | #ifdef CONFIG_PM | ||
315 | u16 pm_suspended; | ||
316 | int pm_saved_mixer_settings[SOUND_MIXER_NRDEVICES][NR_AC97]; | ||
317 | #endif | ||
318 | /* soundcore stuff */ | ||
319 | int dev_audio; | ||
320 | |||
321 | /* structures for abstraction of hardware facilities, codecs, banks and channels */ | ||
322 | struct ac97_codec *ac97_codec[NR_AC97]; | ||
323 | struct ali_state *states[NR_HW_CH]; | ||
324 | |||
325 | u16 ac97_features; | ||
326 | u16 ac97_status; | ||
327 | u16 channels; | ||
328 | |||
329 | /* hardware resources */ | ||
330 | unsigned long iobase; | ||
331 | |||
332 | u32 irq; | ||
333 | |||
334 | /* Function support */ | ||
335 | struct ali_channel *(*alloc_pcm_channel) (struct ali_card *); | ||
336 | struct ali_channel *(*alloc_rec_pcm_channel) (struct ali_card *); | ||
337 | struct ali_channel *(*alloc_rec_mic_channel) (struct ali_card *); | ||
338 | struct ali_channel *(*alloc_codec_spdifout_channel) (struct ali_card *); | ||
339 | struct ali_channel *(*alloc_controller_spdifout_channel) (struct ali_card *); | ||
340 | void (*free_pcm_channel) (struct ali_card *, int chan); | ||
341 | |||
342 | /* We have a *very* long init time possibly, so use this to block */ | ||
343 | /* attempts to open our devices before we are ready (stops oops'es) */ | ||
344 | int initializing; | ||
345 | }; | ||
346 | |||
347 | |||
348 | static struct ali_card *devs = NULL; | ||
349 | |||
350 | static int ali_open_mixdev(struct inode *inode, struct file *file); | ||
351 | static int ali_ioctl_mixdev(struct inode *inode, struct file *file, | ||
352 | unsigned int cmd, unsigned long arg); | ||
353 | static u16 ali_ac97_get(struct ac97_codec *dev, u8 reg); | ||
354 | static void ali_ac97_set(struct ac97_codec *dev, u8 reg, u16 data); | ||
355 | |||
356 | static struct ali_channel *ali_alloc_pcm_channel(struct ali_card *card) | ||
357 | { | ||
358 | if (card->channel[1].used == 1) | ||
359 | return NULL; | ||
360 | card->channel[1].used = 1; | ||
361 | return &card->channel[1]; | ||
362 | } | ||
363 | |||
364 | static struct ali_channel *ali_alloc_rec_pcm_channel(struct ali_card *card) | ||
365 | { | ||
366 | if (card->channel[0].used == 1) | ||
367 | return NULL; | ||
368 | card->channel[0].used = 1; | ||
369 | return &card->channel[0]; | ||
370 | } | ||
371 | |||
372 | static struct ali_channel *ali_alloc_rec_mic_channel(struct ali_card *card) | ||
373 | { | ||
374 | if (card->channel[2].used == 1) | ||
375 | return NULL; | ||
376 | card->channel[2].used = 1; | ||
377 | return &card->channel[2]; | ||
378 | } | ||
379 | |||
380 | static struct ali_channel *ali_alloc_codec_spdifout_channel(struct ali_card *card) | ||
381 | { | ||
382 | if (card->channel[3].used == 1) | ||
383 | return NULL; | ||
384 | card->channel[3].used = 1; | ||
385 | return &card->channel[3]; | ||
386 | } | ||
387 | |||
388 | static struct ali_channel *ali_alloc_controller_spdifout_channel(struct ali_card *card) | ||
389 | { | ||
390 | if (card->channel[4].used == 1) | ||
391 | return NULL; | ||
392 | card->channel[4].used = 1; | ||
393 | return &card->channel[4]; | ||
394 | } | ||
395 | static void ali_free_pcm_channel(struct ali_card *card, int channel) | ||
396 | { | ||
397 | card->channel[channel].used = 0; | ||
398 | } | ||
399 | |||
400 | |||
401 | //add support codec spdif out | ||
402 | static int ali_valid_spdif_rate(struct ac97_codec *codec, int rate) | ||
403 | { | ||
404 | unsigned long id = 0L; | ||
405 | |||
406 | id = (ali_ac97_get(codec, AC97_VENDOR_ID1) << 16); | ||
407 | id |= ali_ac97_get(codec, AC97_VENDOR_ID2) & 0xffff; | ||
408 | switch (id) { | ||
409 | case 0x41445361: /* AD1886 */ | ||
410 | if (rate == 48000) { | ||
411 | return 1; | ||
412 | } | ||
413 | break; | ||
414 | case 0x414c4720: /* ALC650 */ | ||
415 | if (rate == 48000) { | ||
416 | return 1; | ||
417 | } | ||
418 | break; | ||
419 | default: /* all other codecs, until we know otherwiae */ | ||
420 | if (rate == 48000 || rate == 44100 || rate == 32000) { | ||
421 | return 1; | ||
422 | } | ||
423 | break; | ||
424 | } | ||
425 | return (0); | ||
426 | } | ||
427 | |||
428 | /* ali_set_spdif_output | ||
429 | * | ||
430 | * Configure the S/PDIF output transmitter. When we turn on | ||
431 | * S/PDIF, we turn off the analog output. This may not be | ||
432 | * the right thing to do. | ||
433 | * | ||
434 | * Assumptions: | ||
435 | * The DSP sample rate must already be set to a supported | ||
436 | * S/PDIF rate (32kHz, 44.1kHz, or 48kHz) or we abort. | ||
437 | */ | ||
438 | static void ali_set_spdif_output(struct ali_state *state, int slots, | ||
439 | int rate) | ||
440 | { | ||
441 | int vol; | ||
442 | int aud_reg; | ||
443 | struct ac97_codec *codec = state->card->ac97_codec[0]; | ||
444 | |||
445 | if (!(state->card->ac97_features & 4)) { | ||
446 | state->card->ac97_status &= ~SPDIF_ON; | ||
447 | } else { | ||
448 | if (slots == -1) { /* Turn off S/PDIF */ | ||
449 | aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS); | ||
450 | ali_ac97_set(codec, AC97_EXTENDED_STATUS, (aud_reg & ~AC97_EA_SPDIF)); | ||
451 | |||
452 | /* If the volume wasn't muted before we turned on S/PDIF, unmute it */ | ||
453 | if (!(state->card->ac97_status & VOL_MUTED)) { | ||
454 | aud_reg = ali_ac97_get(codec, AC97_MASTER_VOL_STEREO); | ||
455 | ali_ac97_set(codec, AC97_MASTER_VOL_STEREO, | ||
456 | (aud_reg & ~VOL_MUTED)); | ||
457 | } | ||
458 | state->card->ac97_status &= ~(VOL_MUTED | SPDIF_ON); | ||
459 | return; | ||
460 | } | ||
461 | |||
462 | vol = ali_ac97_get(codec, AC97_MASTER_VOL_STEREO); | ||
463 | state->card->ac97_status = vol & VOL_MUTED; | ||
464 | |||
465 | /* Set S/PDIF transmitter sample rate */ | ||
466 | aud_reg = ali_ac97_get(codec, AC97_SPDIF_CONTROL); | ||
467 | switch (rate) { | ||
468 | case 32000: | ||
469 | aud_reg = (aud_reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_32K; | ||
470 | break; | ||
471 | case 44100: | ||
472 | aud_reg = (aud_reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_44K; | ||
473 | break; | ||
474 | case 48000: | ||
475 | aud_reg = (aud_reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_48K; | ||
476 | break; | ||
477 | default: | ||
478 | /* turn off S/PDIF */ | ||
479 | aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS); | ||
480 | ali_ac97_set(codec, AC97_EXTENDED_STATUS, (aud_reg & ~AC97_EA_SPDIF)); | ||
481 | state->card->ac97_status &= ~SPDIF_ON; | ||
482 | return; | ||
483 | } | ||
484 | |||
485 | ali_ac97_set(codec, AC97_SPDIF_CONTROL, aud_reg); | ||
486 | |||
487 | aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS); | ||
488 | aud_reg = (aud_reg & AC97_EA_SLOT_MASK) | slots | AC97_EA_SPDIF; | ||
489 | ali_ac97_set(codec, AC97_EXTENDED_STATUS, aud_reg); | ||
490 | |||
491 | aud_reg = ali_ac97_get(codec, AC97_POWER_CONTROL); | ||
492 | aud_reg |= 0x0002; | ||
493 | ali_ac97_set(codec, AC97_POWER_CONTROL, aud_reg); | ||
494 | udelay(1); | ||
495 | |||
496 | state->card->ac97_status |= SPDIF_ON; | ||
497 | |||
498 | /* Check to make sure the configuration is valid */ | ||
499 | aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS); | ||
500 | if (!(aud_reg & 0x0400)) { | ||
501 | /* turn off S/PDIF */ | ||
502 | ali_ac97_set(codec, AC97_EXTENDED_STATUS, (aud_reg & ~AC97_EA_SPDIF)); | ||
503 | state->card->ac97_status &= ~SPDIF_ON; | ||
504 | return; | ||
505 | } | ||
506 | if (codec_independent_spdif_locked > 0) { | ||
507 | aud_reg = ali_ac97_get(codec, 0x6a); | ||
508 | ali_ac97_set(codec, 0x6a, (aud_reg & 0xefff)); | ||
509 | } | ||
510 | /* Mute the analog output */ | ||
511 | /* Should this only mute the PCM volume??? */ | ||
512 | } | ||
513 | } | ||
514 | |||
515 | /* ali_set_dac_channels | ||
516 | * | ||
517 | * Configure the codec's multi-channel DACs | ||
518 | * | ||
519 | * The logic is backwards. Setting the bit to 1 turns off the DAC. | ||
520 | * | ||
521 | * What about the ICH? We currently configure it using the | ||
522 | * SNDCTL_DSP_CHANNELS ioctl. If we're turnning on the DAC, | ||
523 | * does that imply that we want the ICH set to support | ||
524 | * these channels? | ||
525 | * | ||
526 | * TODO: | ||
527 | * vailidate that the codec really supports these DACs | ||
528 | * before turning them on. | ||
529 | */ | ||
530 | static void ali_set_dac_channels(struct ali_state *state, int channel) | ||
531 | { | ||
532 | int aud_reg; | ||
533 | struct ac97_codec *codec = state->card->ac97_codec[0]; | ||
534 | |||
535 | aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS); | ||
536 | aud_reg |= AC97_EA_PRI | AC97_EA_PRJ | AC97_EA_PRK; | ||
537 | state->card->ac97_status &= ~(SURR_ON | CENTER_LFE_ON); | ||
538 | |||
539 | switch (channel) { | ||
540 | case 2: /* always enabled */ | ||
541 | break; | ||
542 | case 4: | ||
543 | aud_reg &= ~AC97_EA_PRJ; | ||
544 | state->card->ac97_status |= SURR_ON; | ||
545 | break; | ||
546 | case 6: | ||
547 | aud_reg &= ~(AC97_EA_PRJ | AC97_EA_PRI | AC97_EA_PRK); | ||
548 | state->card->ac97_status |= SURR_ON | CENTER_LFE_ON; | ||
549 | break; | ||
550 | default: | ||
551 | break; | ||
552 | } | ||
553 | ali_ac97_set(codec, AC97_EXTENDED_STATUS, aud_reg); | ||
554 | |||
555 | } | ||
556 | |||
557 | /* set playback sample rate */ | ||
558 | static unsigned int ali_set_dac_rate(struct ali_state *state, | ||
559 | unsigned int rate) | ||
560 | { | ||
561 | struct dmabuf *dmabuf = &state->dmabuf; | ||
562 | u32 new_rate; | ||
563 | struct ac97_codec *codec = state->card->ac97_codec[0]; | ||
564 | |||
565 | if (!(state->card->ac97_features & 0x0001)) { | ||
566 | dmabuf->rate = clocking; | ||
567 | return clocking; | ||
568 | } | ||
569 | |||
570 | if (rate > 48000) | ||
571 | rate = 48000; | ||
572 | if (rate < 8000) | ||
573 | rate = 8000; | ||
574 | dmabuf->rate = rate; | ||
575 | |||
576 | /* | ||
577 | * Adjust for misclocked crap | ||
578 | */ | ||
579 | |||
580 | rate = (rate * clocking) / 48000; | ||
581 | |||
582 | if (strict_clocking && rate < 8000) { | ||
583 | rate = 8000; | ||
584 | dmabuf->rate = (rate * 48000) / clocking; | ||
585 | } | ||
586 | |||
587 | new_rate = ac97_set_dac_rate(codec, rate); | ||
588 | if (new_rate != rate) { | ||
589 | dmabuf->rate = (new_rate * 48000) / clocking; | ||
590 | } | ||
591 | rate = new_rate; | ||
592 | return dmabuf->rate; | ||
593 | } | ||
594 | |||
595 | /* set recording sample rate */ | ||
596 | static unsigned int ali_set_adc_rate(struct ali_state *state, | ||
597 | unsigned int rate) | ||
598 | { | ||
599 | struct dmabuf *dmabuf = &state->dmabuf; | ||
600 | u32 new_rate; | ||
601 | struct ac97_codec *codec = state->card->ac97_codec[0]; | ||
602 | |||
603 | if (!(state->card->ac97_features & 0x0001)) { | ||
604 | dmabuf->rate = clocking; | ||
605 | return clocking; | ||
606 | } | ||
607 | |||
608 | if (rate > 48000) | ||
609 | rate = 48000; | ||
610 | if (rate < 8000) | ||
611 | rate = 8000; | ||
612 | dmabuf->rate = rate; | ||
613 | |||
614 | /* | ||
615 | * Adjust for misclocked crap | ||
616 | */ | ||
617 | |||
618 | rate = (rate * clocking) / 48000; | ||
619 | if (strict_clocking && rate < 8000) { | ||
620 | rate = 8000; | ||
621 | dmabuf->rate = (rate * 48000) / clocking; | ||
622 | } | ||
623 | |||
624 | new_rate = ac97_set_adc_rate(codec, rate); | ||
625 | |||
626 | if (new_rate != rate) { | ||
627 | dmabuf->rate = (new_rate * 48000) / clocking; | ||
628 | rate = new_rate; | ||
629 | } | ||
630 | return dmabuf->rate; | ||
631 | } | ||
632 | |||
633 | /* set codec independent spdifout sample rate */ | ||
634 | static unsigned int ali_set_codecspdifout_rate(struct ali_state *state, | ||
635 | unsigned int rate) | ||
636 | { | ||
637 | struct dmabuf *dmabuf = &state->dmabuf; | ||
638 | |||
639 | if (!(state->card->ac97_features & 0x0001)) { | ||
640 | dmabuf->rate = clocking; | ||
641 | return clocking; | ||
642 | } | ||
643 | |||
644 | if (rate > 48000) | ||
645 | rate = 48000; | ||
646 | if (rate < 8000) | ||
647 | rate = 8000; | ||
648 | dmabuf->rate = rate; | ||
649 | |||
650 | return dmabuf->rate; | ||
651 | } | ||
652 | |||
653 | /* set controller independent spdif out function sample rate */ | ||
654 | static void ali_set_spdifout_rate(struct ali_state *state, | ||
655 | unsigned int rate) | ||
656 | { | ||
657 | unsigned char ch_st_sel; | ||
658 | unsigned short status_rate; | ||
659 | |||
660 | switch (rate) { | ||
661 | case 44100: | ||
662 | status_rate = 0; | ||
663 | break; | ||
664 | case 32000: | ||
665 | status_rate = 0x300; | ||
666 | break; | ||
667 | case 48000: | ||
668 | default: | ||
669 | status_rate = 0x200; | ||
670 | break; | ||
671 | } | ||
672 | |||
673 | ch_st_sel = inb(state->card->iobase + ALI_SPDIFICS) & ALI_SPDIF_OUT_CH_STATUS; //select spdif_out | ||
674 | |||
675 | ch_st_sel |= 0x80; //select right | ||
676 | outb(ch_st_sel, (state->card->iobase + ALI_SPDIFICS)); | ||
677 | outb(status_rate | 0x20, (state->card->iobase + ALI_SPDIFCSR + 2)); | ||
678 | |||
679 | ch_st_sel &= (~0x80); //select left | ||
680 | outb(ch_st_sel, (state->card->iobase + ALI_SPDIFICS)); | ||
681 | outw(status_rate | 0x10, (state->card->iobase + ALI_SPDIFCSR + 2)); | ||
682 | } | ||
683 | |||
684 | /* get current playback/recording dma buffer pointer (byte offset from LBA), | ||
685 | called with spinlock held! */ | ||
686 | |||
687 | static inline unsigned ali_get_dma_addr(struct ali_state *state, int rec) | ||
688 | { | ||
689 | struct dmabuf *dmabuf = &state->dmabuf; | ||
690 | unsigned int civ, offset, port, port_picb; | ||
691 | unsigned int data; | ||
692 | |||
693 | if (!dmabuf->enable) | ||
694 | return 0; | ||
695 | |||
696 | if (rec == 1) | ||
697 | port = state->card->iobase + dmabuf->read_channel->port; | ||
698 | else if (rec == 2) | ||
699 | port = state->card->iobase + dmabuf->codec_spdifout_channel->port; | ||
700 | else if (rec == 3) | ||
701 | port = state->card->iobase + dmabuf->controller_spdifout_channel->port; | ||
702 | else | ||
703 | port = state->card->iobase + dmabuf->write_channel->port; | ||
704 | |||
705 | port_picb = port + OFF_PICB; | ||
706 | |||
707 | do { | ||
708 | civ = inb(port + OFF_CIV) & 31; | ||
709 | offset = inw(port_picb); | ||
710 | /* Must have a delay here! */ | ||
711 | if (offset == 0) | ||
712 | udelay(1); | ||
713 | |||
714 | /* Reread both registers and make sure that that total | ||
715 | * offset from the first reading to the second is 0. | ||
716 | * There is an issue with SiS hardware where it will count | ||
717 | * picb down to 0, then update civ to the next value, | ||
718 | * then set the new picb to fragsize bytes. We can catch | ||
719 | * it between the civ update and the picb update, making | ||
720 | * it look as though we are 1 fragsize ahead of where we | ||
721 | * are. The next to we get the address though, it will | ||
722 | * be back in thdelay is more than long enough | ||
723 | * that we won't have to worry about the chip still being | ||
724 | * out of sync with reality ;-) | ||
725 | */ | ||
726 | } while (civ != (inb(port + OFF_CIV) & 31) || offset != inw(port_picb)); | ||
727 | |||
728 | data = ((civ + 1) * dmabuf->fragsize - (2 * offset)) % dmabuf->dmasize; | ||
729 | if (inw(port_picb) == 0) | ||
730 | data -= 2048; | ||
731 | |||
732 | return data; | ||
733 | } | ||
734 | |||
735 | /* Stop recording (lock held) */ | ||
736 | static inline void __stop_adc(struct ali_state *state) | ||
737 | { | ||
738 | struct dmabuf *dmabuf = &state->dmabuf; | ||
739 | struct ali_card *card = state->card; | ||
740 | |||
741 | dmabuf->enable &= ~ADC_RUNNING; | ||
742 | |||
743 | outl((1 << 18) | (1 << 16), card->iobase + ALI_DMACR); | ||
744 | udelay(1); | ||
745 | |||
746 | outb(0, card->iobase + PI_CR); | ||
747 | while (inb(card->iobase + PI_CR) != 0); | ||
748 | |||
749 | // now clear any latent interrupt bits (like the halt bit) | ||
750 | outb(inb(card->iobase + PI_SR) | 0x001e, card->iobase + PI_SR); | ||
751 | outl(inl(card->iobase + ALI_INTERRUPTSR) & INT_PCMIN, card->iobase + ALI_INTERRUPTSR); | ||
752 | } | ||
753 | |||
754 | static void stop_adc(struct ali_state *state) | ||
755 | { | ||
756 | struct ali_card *card = state->card; | ||
757 | unsigned long flags; | ||
758 | spin_lock_irqsave(&card->lock, flags); | ||
759 | __stop_adc(state); | ||
760 | spin_unlock_irqrestore(&card->lock, flags); | ||
761 | } | ||
762 | |||
763 | static inline void __start_adc(struct ali_state *state) | ||
764 | { | ||
765 | struct dmabuf *dmabuf = &state->dmabuf; | ||
766 | |||
767 | if (dmabuf->count < dmabuf->dmasize && dmabuf->ready | ||
768 | && !dmabuf->enable && (dmabuf->trigger & PCM_ENABLE_INPUT)) { | ||
769 | dmabuf->enable |= ADC_RUNNING; | ||
770 | outb((1 << 4) | (1 << 2), state->card->iobase + PI_CR); | ||
771 | if (state->card->channel[0].used == 1) | ||
772 | outl(1, state->card->iobase + ALI_DMACR); // DMA CONTROL REGISTRER | ||
773 | udelay(100); | ||
774 | if (state->card->channel[2].used == 1) | ||
775 | outl((1 << 2), state->card->iobase + ALI_DMACR); //DMA CONTROL REGISTER | ||
776 | udelay(100); | ||
777 | } | ||
778 | } | ||
779 | |||
780 | static void start_adc(struct ali_state *state) | ||
781 | { | ||
782 | struct ali_card *card = state->card; | ||
783 | unsigned long flags; | ||
784 | |||
785 | spin_lock_irqsave(&card->lock, flags); | ||
786 | __start_adc(state); | ||
787 | spin_unlock_irqrestore(&card->lock, flags); | ||
788 | } | ||
789 | |||
790 | /* stop playback (lock held) */ | ||
791 | static inline void __stop_dac(struct ali_state *state) | ||
792 | { | ||
793 | struct dmabuf *dmabuf = &state->dmabuf; | ||
794 | struct ali_card *card = state->card; | ||
795 | |||
796 | dmabuf->enable &= ~DAC_RUNNING; | ||
797 | outl(0x00020000, card->iobase + 0x08); | ||
798 | outb(0, card->iobase + PO_CR); | ||
799 | while (inb(card->iobase + PO_CR) != 0) | ||
800 | cpu_relax(); | ||
801 | |||
802 | outb(inb(card->iobase + PO_SR) | 0x001e, card->iobase + PO_SR); | ||
803 | |||
804 | outl(inl(card->iobase + ALI_INTERRUPTSR) & INT_PCMOUT, card->iobase + ALI_INTERRUPTSR); | ||
805 | } | ||
806 | |||
807 | static void stop_dac(struct ali_state *state) | ||
808 | { | ||
809 | struct ali_card *card = state->card; | ||
810 | unsigned long flags; | ||
811 | spin_lock_irqsave(&card->lock, flags); | ||
812 | __stop_dac(state); | ||
813 | spin_unlock_irqrestore(&card->lock, flags); | ||
814 | } | ||
815 | |||
816 | static inline void __start_dac(struct ali_state *state) | ||
817 | { | ||
818 | struct dmabuf *dmabuf = &state->dmabuf; | ||
819 | if (dmabuf->count > 0 && dmabuf->ready && !dmabuf->enable && | ||
820 | (dmabuf->trigger & PCM_ENABLE_OUTPUT)) { | ||
821 | dmabuf->enable |= DAC_RUNNING; | ||
822 | outb((1 << 4) | (1 << 2), state->card->iobase + PO_CR); | ||
823 | outl((1 << 1), state->card->iobase + 0x08); //dma control register | ||
824 | } | ||
825 | } | ||
826 | |||
827 | static void start_dac(struct ali_state *state) | ||
828 | { | ||
829 | struct ali_card *card = state->card; | ||
830 | unsigned long flags; | ||
831 | spin_lock_irqsave(&card->lock, flags); | ||
832 | __start_dac(state); | ||
833 | spin_unlock_irqrestore(&card->lock, flags); | ||
834 | } | ||
835 | |||
836 | /* stop codec and controller spdif out (lock held) */ | ||
837 | static inline void __stop_spdifout(struct ali_state *state) | ||
838 | { | ||
839 | struct dmabuf *dmabuf = &state->dmabuf; | ||
840 | struct ali_card *card = state->card; | ||
841 | |||
842 | if (codec_independent_spdif_locked > 0) { | ||
843 | dmabuf->enable &= ~CODEC_SPDIFOUT_RUNNING; | ||
844 | outl((1 << 19), card->iobase + 0x08); | ||
845 | outb(0, card->iobase + CODECSPDIFOUT_CR); | ||
846 | |||
847 | while (inb(card->iobase + CODECSPDIFOUT_CR) != 0) | ||
848 | cpu_relax(); | ||
849 | |||
850 | outb(inb(card->iobase + CODECSPDIFOUT_SR) | 0x001e, card->iobase + CODECSPDIFOUT_SR); | ||
851 | outl(inl(card->iobase + ALI_INTERRUPTSR) & INT_CODECSPDIFOUT, card->iobase + ALI_INTERRUPTSR); | ||
852 | } else { | ||
853 | if (controller_independent_spdif_locked > 0) { | ||
854 | dmabuf->enable &= ~CONTROLLER_SPDIFOUT_RUNNING; | ||
855 | outl((1 << 23), card->iobase + 0x08); | ||
856 | outb(0, card->iobase + CONTROLLERSPDIFOUT_CR); | ||
857 | while (inb(card->iobase + CONTROLLERSPDIFOUT_CR) != 0) | ||
858 | cpu_relax(); | ||
859 | outb(inb(card->iobase + CONTROLLERSPDIFOUT_SR) | 0x001e, card->iobase + CONTROLLERSPDIFOUT_SR); | ||
860 | outl(inl(card->iobase + ALI_INTERRUPTSR) & INT_SPDIFOUT, card->iobase + ALI_INTERRUPTSR); | ||
861 | } | ||
862 | } | ||
863 | } | ||
864 | |||
865 | static void stop_spdifout(struct ali_state *state) | ||
866 | { | ||
867 | struct ali_card *card = state->card; | ||
868 | unsigned long flags; | ||
869 | spin_lock_irqsave(&card->lock, flags); | ||
870 | __stop_spdifout(state); | ||
871 | spin_unlock_irqrestore(&card->lock, flags); | ||
872 | } | ||
873 | |||
874 | static inline void __start_spdifout(struct ali_state *state) | ||
875 | { | ||
876 | struct dmabuf *dmabuf = &state->dmabuf; | ||
877 | if (dmabuf->count > 0 && dmabuf->ready && !dmabuf->enable && | ||
878 | (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) { | ||
879 | if (codec_independent_spdif_locked > 0) { | ||
880 | dmabuf->enable |= CODEC_SPDIFOUT_RUNNING; | ||
881 | outb((1 << 4) | (1 << 2), state->card->iobase + CODECSPDIFOUT_CR); | ||
882 | outl((1 << 3), state->card->iobase + 0x08); //dma control register | ||
883 | } else { | ||
884 | if (controller_independent_spdif_locked > 0) { | ||
885 | dmabuf->enable |= CONTROLLER_SPDIFOUT_RUNNING; | ||
886 | outb((1 << 4) | (1 << 2), state->card->iobase + CONTROLLERSPDIFOUT_CR); | ||
887 | outl((1 << 7), state->card->iobase + 0x08); //dma control register | ||
888 | } | ||
889 | } | ||
890 | } | ||
891 | } | ||
892 | |||
893 | static void start_spdifout(struct ali_state *state) | ||
894 | { | ||
895 | struct ali_card *card = state->card; | ||
896 | unsigned long flags; | ||
897 | spin_lock_irqsave(&card->lock, flags); | ||
898 | __start_spdifout(state); | ||
899 | spin_unlock_irqrestore(&card->lock, flags); | ||
900 | } | ||
901 | |||
902 | #define DMABUF_DEFAULTORDER (16-PAGE_SHIFT) | ||
903 | #define DMABUF_MINORDER 1 | ||
904 | |||
905 | /* allocate DMA buffer, playback , recording,spdif out buffer should be allocated separately */ | ||
906 | static int alloc_dmabuf(struct ali_state *state) | ||
907 | { | ||
908 | struct dmabuf *dmabuf = &state->dmabuf; | ||
909 | void *rawbuf = NULL; | ||
910 | int order, size; | ||
911 | struct page *page, *pend; | ||
912 | |||
913 | /* If we don't have any oss frag params, then use our default ones */ | ||
914 | if (dmabuf->ossmaxfrags == 0) | ||
915 | dmabuf->ossmaxfrags = 4; | ||
916 | if (dmabuf->ossfragsize == 0) | ||
917 | dmabuf->ossfragsize = (PAGE_SIZE << DMABUF_DEFAULTORDER) / dmabuf->ossmaxfrags; | ||
918 | size = dmabuf->ossfragsize * dmabuf->ossmaxfrags; | ||
919 | |||
920 | if (dmabuf->rawbuf && (PAGE_SIZE << dmabuf->buforder) == size) | ||
921 | return 0; | ||
922 | /* alloc enough to satisfy the oss params */ | ||
923 | for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--) { | ||
924 | if ((PAGE_SIZE << order) > size) | ||
925 | continue; | ||
926 | if ((rawbuf = pci_alloc_consistent(state->card->pci_dev, | ||
927 | PAGE_SIZE << order, | ||
928 | &dmabuf->dma_handle))) | ||
929 | break; | ||
930 | } | ||
931 | if (!rawbuf) | ||
932 | return -ENOMEM; | ||
933 | |||
934 | dmabuf->ready = dmabuf->mapped = 0; | ||
935 | dmabuf->rawbuf = rawbuf; | ||
936 | dmabuf->buforder = order; | ||
937 | |||
938 | /* now mark the pages as reserved; otherwise remap_pfn_range doesn't do what we want */ | ||
939 | pend = virt_to_page(rawbuf + (PAGE_SIZE << order) - 1); | ||
940 | for (page = virt_to_page(rawbuf); page <= pend; page++) | ||
941 | SetPageReserved(page); | ||
942 | return 0; | ||
943 | } | ||
944 | |||
945 | /* free DMA buffer */ | ||
946 | static void dealloc_dmabuf(struct ali_state *state) | ||
947 | { | ||
948 | struct dmabuf *dmabuf = &state->dmabuf; | ||
949 | struct page *page, *pend; | ||
950 | |||
951 | if (dmabuf->rawbuf) { | ||
952 | /* undo marking the pages as reserved */ | ||
953 | pend = virt_to_page(dmabuf->rawbuf + (PAGE_SIZE << dmabuf->buforder) - 1); | ||
954 | for (page = virt_to_page(dmabuf->rawbuf); page <= pend; page++) | ||
955 | ClearPageReserved(page); | ||
956 | pci_free_consistent(state->card->pci_dev, | ||
957 | PAGE_SIZE << dmabuf->buforder, | ||
958 | dmabuf->rawbuf, dmabuf->dma_handle); | ||
959 | } | ||
960 | dmabuf->rawbuf = NULL; | ||
961 | dmabuf->mapped = dmabuf->ready = 0; | ||
962 | } | ||
963 | |||
964 | static int prog_dmabuf(struct ali_state *state, unsigned rec) | ||
965 | { | ||
966 | struct dmabuf *dmabuf = &state->dmabuf; | ||
967 | struct ali_channel *c = NULL; | ||
968 | struct sg_item *sg; | ||
969 | unsigned long flags; | ||
970 | int ret; | ||
971 | unsigned fragint; | ||
972 | int i; | ||
973 | |||
974 | spin_lock_irqsave(&state->card->lock, flags); | ||
975 | if (dmabuf->enable & DAC_RUNNING) | ||
976 | __stop_dac(state); | ||
977 | if (dmabuf->enable & ADC_RUNNING) | ||
978 | __stop_adc(state); | ||
979 | if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) | ||
980 | __stop_spdifout(state); | ||
981 | if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) | ||
982 | __stop_spdifout(state); | ||
983 | |||
984 | dmabuf->total_bytes = 0; | ||
985 | dmabuf->count = dmabuf->error = 0; | ||
986 | dmabuf->swptr = dmabuf->hwptr = 0; | ||
987 | spin_unlock_irqrestore(&state->card->lock, flags); | ||
988 | |||
989 | /* allocate DMA buffer, let alloc_dmabuf determine if we are already | ||
990 | * allocated well enough or if we should replace the current buffer | ||
991 | * (assuming one is already allocated, if it isn't, then allocate it). | ||
992 | */ | ||
993 | if ((ret = alloc_dmabuf(state))) | ||
994 | return ret; | ||
995 | |||
996 | /* FIXME: figure out all this OSS fragment stuff */ | ||
997 | /* I did, it now does what it should according to the OSS API. DL */ | ||
998 | /* We may not have realloced our dmabuf, but the fragment size to | ||
999 | * fragment number ratio may have changed, so go ahead and reprogram | ||
1000 | * things | ||
1001 | */ | ||
1002 | |||
1003 | dmabuf->dmasize = PAGE_SIZE << dmabuf->buforder; | ||
1004 | dmabuf->numfrag = SG_LEN; | ||
1005 | dmabuf->fragsize = dmabuf->dmasize / dmabuf->numfrag; | ||
1006 | dmabuf->fragsamples = dmabuf->fragsize >> 1; | ||
1007 | dmabuf->userfragsize = dmabuf->ossfragsize; | ||
1008 | dmabuf->userfrags = dmabuf->dmasize / dmabuf->ossfragsize; | ||
1009 | |||
1010 | memset(dmabuf->rawbuf, 0, dmabuf->dmasize); | ||
1011 | |||
1012 | if (dmabuf->ossmaxfrags == 4) { | ||
1013 | fragint = 8; | ||
1014 | dmabuf->fragshift = 2; | ||
1015 | } else if (dmabuf->ossmaxfrags == 8) { | ||
1016 | fragint = 4; | ||
1017 | dmabuf->fragshift = 3; | ||
1018 | } else if (dmabuf->ossmaxfrags == 16) { | ||
1019 | fragint = 2; | ||
1020 | dmabuf->fragshift = 4; | ||
1021 | } else { | ||
1022 | fragint = 1; | ||
1023 | dmabuf->fragshift = 5; | ||
1024 | } | ||
1025 | /* | ||
1026 | * Now set up the ring | ||
1027 | */ | ||
1028 | |||
1029 | if (rec == 1) | ||
1030 | c = dmabuf->read_channel; | ||
1031 | else if (rec == 2) | ||
1032 | c = dmabuf->codec_spdifout_channel; | ||
1033 | else if (rec == 3) | ||
1034 | c = dmabuf->controller_spdifout_channel; | ||
1035 | else if (rec == 0) | ||
1036 | c = dmabuf->write_channel; | ||
1037 | if (c != NULL) { | ||
1038 | sg = &c->sg[0]; | ||
1039 | /* | ||
1040 | * Load up 32 sg entries and take an interrupt at half | ||
1041 | * way (we might want more interrupts later..) | ||
1042 | */ | ||
1043 | for (i = 0; i < dmabuf->numfrag; i++) { | ||
1044 | sg->busaddr = | ||
1045 | virt_to_bus(dmabuf->rawbuf + | ||
1046 | dmabuf->fragsize * i); | ||
1047 | // the card will always be doing 16bit stereo | ||
1048 | sg->control = dmabuf->fragsamples; | ||
1049 | sg->control |= CON_BUFPAD; //I modify | ||
1050 | // set us up to get IOC interrupts as often as needed to | ||
1051 | // satisfy numfrag requirements, no more | ||
1052 | if (((i + 1) % fragint) == 0) { | ||
1053 | sg->control |= CON_IOC; | ||
1054 | } | ||
1055 | sg++; | ||
1056 | } | ||
1057 | spin_lock_irqsave(&state->card->lock, flags); | ||
1058 | outb(2, state->card->iobase + c->port + OFF_CR); /* reset DMA machine */ | ||
1059 | outl(virt_to_bus(&c->sg[0]), state->card->iobase + c->port + OFF_BDBAR); | ||
1060 | outb(0, state->card->iobase + c->port + OFF_CIV); | ||
1061 | outb(0, state->card->iobase + c->port + OFF_LVI); | ||
1062 | spin_unlock_irqrestore(&state->card->lock, flags); | ||
1063 | } | ||
1064 | /* set the ready flag for the dma buffer */ | ||
1065 | dmabuf->ready = 1; | ||
1066 | return 0; | ||
1067 | } | ||
1068 | |||
1069 | static void __ali_update_lvi(struct ali_state *state, int rec) | ||
1070 | { | ||
1071 | struct dmabuf *dmabuf = &state->dmabuf; | ||
1072 | int x, port; | ||
1073 | port = state->card->iobase; | ||
1074 | if (rec == 1) | ||
1075 | port += dmabuf->read_channel->port; | ||
1076 | else if (rec == 2) | ||
1077 | port += dmabuf->codec_spdifout_channel->port; | ||
1078 | else if (rec == 3) | ||
1079 | port += dmabuf->controller_spdifout_channel->port; | ||
1080 | else if (rec == 0) | ||
1081 | port += dmabuf->write_channel->port; | ||
1082 | /* if we are currently stopped, then our CIV is actually set to our | ||
1083 | * *last* sg segment and we are ready to wrap to the next. However, | ||
1084 | * if we set our LVI to the last sg segment, then it won't wrap to | ||
1085 | * the next sg segment, it won't even get a start. So, instead, when | ||
1086 | * we are stopped, we set both the LVI value and also we increment | ||
1087 | * the CIV value to the next sg segment to be played so that when | ||
1088 | * we call start_{dac,adc}, things will operate properly | ||
1089 | */ | ||
1090 | if (!dmabuf->enable && dmabuf->ready) { | ||
1091 | if (rec && dmabuf->count < dmabuf->dmasize && (dmabuf->trigger & PCM_ENABLE_INPUT)) { | ||
1092 | outb((inb(port + OFF_CIV) + 1) & 31, port + OFF_LVI); | ||
1093 | __start_adc(state); | ||
1094 | while (! (inb(port + OFF_CR) & ((1 << 4) | (1 << 2)))) | ||
1095 | cpu_relax(); | ||
1096 | } else if (!rec && dmabuf->count && (dmabuf->trigger & PCM_ENABLE_OUTPUT)) { | ||
1097 | outb((inb(port + OFF_CIV) + 1) & 31, port + OFF_LVI); | ||
1098 | __start_dac(state); | ||
1099 | while (!(inb(port + OFF_CR) & ((1 << 4) | (1 << 2)))) | ||
1100 | cpu_relax(); | ||
1101 | } else if (rec && dmabuf->count && (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) { | ||
1102 | if (codec_independent_spdif_locked > 0) { | ||
1103 | // outb((inb(port+OFF_CIV))&31, port+OFF_LVI); | ||
1104 | outb((inb(port + OFF_CIV) + 1) & 31, port + OFF_LVI); | ||
1105 | __start_spdifout(state); | ||
1106 | while (!(inb(port + OFF_CR) & ((1 << 4) | (1 << 2)))) | ||
1107 | cpu_relax(); | ||
1108 | } else { | ||
1109 | if (controller_independent_spdif_locked > 0) { | ||
1110 | outb((inb(port + OFF_CIV) + 1) & 31, port + OFF_LVI); | ||
1111 | __start_spdifout(state); | ||
1112 | while (!(inb(port + OFF_CR) & ((1 << 4) | (1 << 2)))) | ||
1113 | cpu_relax(); | ||
1114 | } | ||
1115 | } | ||
1116 | } | ||
1117 | } | ||
1118 | |||
1119 | /* swptr - 1 is the tail of our transfer */ | ||
1120 | x = (dmabuf->dmasize + dmabuf->swptr - 1) % dmabuf->dmasize; | ||
1121 | x /= dmabuf->fragsize; | ||
1122 | outb(x, port + OFF_LVI); | ||
1123 | } | ||
1124 | |||
1125 | static void ali_update_lvi(struct ali_state *state, int rec) | ||
1126 | { | ||
1127 | struct dmabuf *dmabuf = &state->dmabuf; | ||
1128 | unsigned long flags; | ||
1129 | if (!dmabuf->ready) | ||
1130 | return; | ||
1131 | spin_lock_irqsave(&state->card->lock, flags); | ||
1132 | __ali_update_lvi(state, rec); | ||
1133 | spin_unlock_irqrestore(&state->card->lock, flags); | ||
1134 | } | ||
1135 | |||
1136 | /* update buffer manangement pointers, especially, dmabuf->count and dmabuf->hwptr */ | ||
1137 | static void ali_update_ptr(struct ali_state *state) | ||
1138 | { | ||
1139 | struct dmabuf *dmabuf = &state->dmabuf; | ||
1140 | unsigned hwptr; | ||
1141 | int diff; | ||
1142 | |||
1143 | /* error handling and process wake up for DAC */ | ||
1144 | if (dmabuf->enable == ADC_RUNNING) { | ||
1145 | /* update hardware pointer */ | ||
1146 | hwptr = ali_get_dma_addr(state, 1); | ||
1147 | diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize; | ||
1148 | dmabuf->hwptr = hwptr; | ||
1149 | dmabuf->total_bytes += diff; | ||
1150 | dmabuf->count += diff; | ||
1151 | if (dmabuf->count > dmabuf->dmasize) { | ||
1152 | /* buffer underrun or buffer overrun */ | ||
1153 | /* this is normal for the end of a read */ | ||
1154 | /* only give an error if we went past the */ | ||
1155 | /* last valid sg entry */ | ||
1156 | if ((inb(state->card->iobase + PI_CIV) & 31) != (inb(state->card->iobase + PI_LVI) & 31)) { | ||
1157 | printk(KERN_WARNING "ali_audio: DMA overrun on read\n"); | ||
1158 | dmabuf->error++; | ||
1159 | } | ||
1160 | } | ||
1161 | if (dmabuf->count > dmabuf->userfragsize) | ||
1162 | wake_up(&dmabuf->wait); | ||
1163 | } | ||
1164 | /* error handling and process wake up for DAC */ | ||
1165 | if (dmabuf->enable == DAC_RUNNING) { | ||
1166 | /* update hardware pointer */ | ||
1167 | hwptr = ali_get_dma_addr(state, 0); | ||
1168 | diff = | ||
1169 | (dmabuf->dmasize + hwptr - | ||
1170 | dmabuf->hwptr) % dmabuf->dmasize; | ||
1171 | #if defined(DEBUG_INTERRUPTS) || defined(DEBUG_MMAP) | ||
1172 | printk("DAC HWP %d,%d,%d\n", hwptr, dmabuf->hwptr, diff); | ||
1173 | #endif | ||
1174 | dmabuf->hwptr = hwptr; | ||
1175 | dmabuf->total_bytes += diff; | ||
1176 | dmabuf->count -= diff; | ||
1177 | if (dmabuf->count < 0) { | ||
1178 | /* buffer underrun or buffer overrun */ | ||
1179 | /* this is normal for the end of a write */ | ||
1180 | /* only give an error if we went past the */ | ||
1181 | /* last valid sg entry */ | ||
1182 | if ((inb(state->card->iobase + PO_CIV) & 31) != (inb(state->card->iobase + PO_LVI) & 31)) { | ||
1183 | printk(KERN_WARNING "ali_audio: DMA overrun on write\n"); | ||
1184 | printk(KERN_DEBUG "ali_audio: CIV %d, LVI %d, hwptr %x, count %d\n", | ||
1185 | inb(state->card->iobase + PO_CIV) & 31, | ||
1186 | inb(state->card->iobase + PO_LVI) & 31, | ||
1187 | dmabuf->hwptr, | ||
1188 | dmabuf->count); | ||
1189 | dmabuf->error++; | ||
1190 | } | ||
1191 | } | ||
1192 | if (dmabuf->count < (dmabuf->dmasize - dmabuf->userfragsize)) | ||
1193 | wake_up(&dmabuf->wait); | ||
1194 | } | ||
1195 | |||
1196 | /* error handling and process wake up for CODEC SPDIF OUT */ | ||
1197 | if (dmabuf->enable == CODEC_SPDIFOUT_RUNNING) { | ||
1198 | /* update hardware pointer */ | ||
1199 | hwptr = ali_get_dma_addr(state, 2); | ||
1200 | diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize; | ||
1201 | dmabuf->hwptr = hwptr; | ||
1202 | dmabuf->total_bytes += diff; | ||
1203 | dmabuf->count -= diff; | ||
1204 | if (dmabuf->count < 0) { | ||
1205 | /* buffer underrun or buffer overrun */ | ||
1206 | /* this is normal for the end of a write */ | ||
1207 | /* only give an error if we went past the */ | ||
1208 | /* last valid sg entry */ | ||
1209 | if ((inb(state->card->iobase + CODECSPDIFOUT_CIV) & 31) != (inb(state->card->iobase + CODECSPDIFOUT_LVI) & 31)) { | ||
1210 | printk(KERN_WARNING "ali_audio: DMA overrun on write\n"); | ||
1211 | printk(KERN_DEBUG "ali_audio: CIV %d, LVI %d, hwptr %x, count %d\n", | ||
1212 | inb(state->card->iobase + CODECSPDIFOUT_CIV) & 31, | ||
1213 | inb(state->card->iobase + CODECSPDIFOUT_LVI) & 31, | ||
1214 | dmabuf->hwptr, dmabuf->count); | ||
1215 | dmabuf->error++; | ||
1216 | } | ||
1217 | } | ||
1218 | if (dmabuf->count < (dmabuf->dmasize - dmabuf->userfragsize)) | ||
1219 | wake_up(&dmabuf->wait); | ||
1220 | } | ||
1221 | /* error handling and process wake up for CONTROLLER SPDIF OUT */ | ||
1222 | if (dmabuf->enable == CONTROLLER_SPDIFOUT_RUNNING) { | ||
1223 | /* update hardware pointer */ | ||
1224 | hwptr = ali_get_dma_addr(state, 3); | ||
1225 | diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize; | ||
1226 | dmabuf->hwptr = hwptr; | ||
1227 | dmabuf->total_bytes += diff; | ||
1228 | dmabuf->count -= diff; | ||
1229 | if (dmabuf->count < 0) { | ||
1230 | /* buffer underrun or buffer overrun */ | ||
1231 | /* this is normal for the end of a write */ | ||
1232 | /* only give an error if we went past the */ | ||
1233 | /* last valid sg entry */ | ||
1234 | if ((inb(state->card->iobase + CONTROLLERSPDIFOUT_CIV) & 31) != (inb(state->card->iobase + CONTROLLERSPDIFOUT_LVI) & 31)) { | ||
1235 | printk(KERN_WARNING | ||
1236 | "ali_audio: DMA overrun on write\n"); | ||
1237 | printk("ali_audio: CIV %d, LVI %d, hwptr %x, " | ||
1238 | "count %d\n", | ||
1239 | inb(state->card->iobase + CONTROLLERSPDIFOUT_CIV) & 31, | ||
1240 | inb(state->card->iobase + CONTROLLERSPDIFOUT_LVI) & 31, | ||
1241 | dmabuf->hwptr, dmabuf->count); | ||
1242 | dmabuf->error++; | ||
1243 | } | ||
1244 | } | ||
1245 | if (dmabuf->count < (dmabuf->dmasize - dmabuf->userfragsize)) | ||
1246 | wake_up(&dmabuf->wait); | ||
1247 | } | ||
1248 | } | ||
1249 | |||
1250 | static inline int ali_get_free_write_space(struct | ||
1251 | ali_state | ||
1252 | *state) | ||
1253 | { | ||
1254 | struct dmabuf *dmabuf = &state->dmabuf; | ||
1255 | int free; | ||
1256 | |||
1257 | if (dmabuf->count < 0) { | ||
1258 | dmabuf->count = 0; | ||
1259 | dmabuf->swptr = dmabuf->hwptr; | ||
1260 | } | ||
1261 | free = dmabuf->dmasize - dmabuf->swptr; | ||
1262 | if ((dmabuf->count + free) > dmabuf->dmasize){ | ||
1263 | free = dmabuf->dmasize - dmabuf->count; | ||
1264 | } | ||
1265 | return free; | ||
1266 | } | ||
1267 | |||
1268 | static inline int ali_get_available_read_data(struct | ||
1269 | ali_state | ||
1270 | *state) | ||
1271 | { | ||
1272 | struct dmabuf *dmabuf = &state->dmabuf; | ||
1273 | int avail; | ||
1274 | ali_update_ptr(state); | ||
1275 | // catch overruns during record | ||
1276 | if (dmabuf->count > dmabuf->dmasize) { | ||
1277 | dmabuf->count = dmabuf->dmasize; | ||
1278 | dmabuf->swptr = dmabuf->hwptr; | ||
1279 | } | ||
1280 | avail = dmabuf->count; | ||
1281 | avail -= (dmabuf->hwptr % dmabuf->fragsize); | ||
1282 | if (avail < 0) | ||
1283 | return (0); | ||
1284 | return (avail); | ||
1285 | } | ||
1286 | |||
1287 | static int drain_dac(struct ali_state *state, int signals_allowed) | ||
1288 | { | ||
1289 | |||
1290 | DECLARE_WAITQUEUE(wait, current); | ||
1291 | struct dmabuf *dmabuf = &state->dmabuf; | ||
1292 | unsigned long flags; | ||
1293 | unsigned long tmo; | ||
1294 | int count; | ||
1295 | if (!dmabuf->ready) | ||
1296 | return 0; | ||
1297 | if (dmabuf->mapped) { | ||
1298 | stop_dac(state); | ||
1299 | return 0; | ||
1300 | } | ||
1301 | add_wait_queue(&dmabuf->wait, &wait); | ||
1302 | for (;;) { | ||
1303 | |||
1304 | spin_lock_irqsave(&state->card->lock, flags); | ||
1305 | ali_update_ptr(state); | ||
1306 | count = dmabuf->count; | ||
1307 | spin_unlock_irqrestore(&state->card->lock, flags); | ||
1308 | if (count <= 0) | ||
1309 | break; | ||
1310 | /* | ||
1311 | * This will make sure that our LVI is correct, that our | ||
1312 | * pointer is updated, and that the DAC is running. We | ||
1313 | * have to force the setting of dmabuf->trigger to avoid | ||
1314 | * any possible deadlocks. | ||
1315 | */ | ||
1316 | if (!dmabuf->enable) { | ||
1317 | dmabuf->trigger = PCM_ENABLE_OUTPUT; | ||
1318 | ali_update_lvi(state, 0); | ||
1319 | } | ||
1320 | if (signal_pending(current) && signals_allowed) { | ||
1321 | break; | ||
1322 | } | ||
1323 | |||
1324 | /* It seems that we have to set the current state to | ||
1325 | * TASK_INTERRUPTIBLE every time to make the process | ||
1326 | * really go to sleep. This also has to be *after* the | ||
1327 | * update_ptr() call because update_ptr is likely to | ||
1328 | * do a wake_up() which will unset this before we ever | ||
1329 | * try to sleep, resuling in a tight loop in this code | ||
1330 | * instead of actually sleeping and waiting for an | ||
1331 | * interrupt to wake us up! | ||
1332 | */ | ||
1333 | set_current_state(TASK_INTERRUPTIBLE); | ||
1334 | /* | ||
1335 | * set the timeout to significantly longer than it *should* | ||
1336 | * take for the DAC to drain the DMA buffer | ||
1337 | */ | ||
1338 | tmo = (count * HZ) / (dmabuf->rate); | ||
1339 | if (!schedule_timeout(tmo >= 2 ? tmo : 2)) { | ||
1340 | printk(KERN_ERR "ali_audio: drain_dac, dma timeout?\n"); | ||
1341 | count = 0; | ||
1342 | break; | ||
1343 | } | ||
1344 | } | ||
1345 | set_current_state(TASK_RUNNING); | ||
1346 | remove_wait_queue(&dmabuf->wait, &wait); | ||
1347 | if (count > 0 && signal_pending(current) && signals_allowed) | ||
1348 | return -ERESTARTSYS; | ||
1349 | stop_dac(state); | ||
1350 | return 0; | ||
1351 | } | ||
1352 | |||
1353 | |||
1354 | static int drain_spdifout(struct ali_state *state, int signals_allowed) | ||
1355 | { | ||
1356 | |||
1357 | DECLARE_WAITQUEUE(wait, current); | ||
1358 | struct dmabuf *dmabuf = &state->dmabuf; | ||
1359 | unsigned long flags; | ||
1360 | unsigned long tmo; | ||
1361 | int count; | ||
1362 | if (!dmabuf->ready) | ||
1363 | return 0; | ||
1364 | if (dmabuf->mapped) { | ||
1365 | stop_spdifout(state); | ||
1366 | return 0; | ||
1367 | } | ||
1368 | add_wait_queue(&dmabuf->wait, &wait); | ||
1369 | for (;;) { | ||
1370 | |||
1371 | spin_lock_irqsave(&state->card->lock, flags); | ||
1372 | ali_update_ptr(state); | ||
1373 | count = dmabuf->count; | ||
1374 | spin_unlock_irqrestore(&state->card->lock, flags); | ||
1375 | if (count <= 0) | ||
1376 | break; | ||
1377 | /* | ||
1378 | * This will make sure that our LVI is correct, that our | ||
1379 | * pointer is updated, and that the DAC is running. We | ||
1380 | * have to force the setting of dmabuf->trigger to avoid | ||
1381 | * any possible deadlocks. | ||
1382 | */ | ||
1383 | if (!dmabuf->enable) { | ||
1384 | if (codec_independent_spdif_locked > 0) { | ||
1385 | dmabuf->trigger = SPDIF_ENABLE_OUTPUT; | ||
1386 | ali_update_lvi(state, 2); | ||
1387 | } else { | ||
1388 | if (controller_independent_spdif_locked > 0) { | ||
1389 | dmabuf->trigger = SPDIF_ENABLE_OUTPUT; | ||
1390 | ali_update_lvi(state, 3); | ||
1391 | } | ||
1392 | } | ||
1393 | } | ||
1394 | if (signal_pending(current) && signals_allowed) { | ||
1395 | break; | ||
1396 | } | ||
1397 | |||
1398 | /* It seems that we have to set the current state to | ||
1399 | * TASK_INTERRUPTIBLE every time to make the process | ||
1400 | * really go to sleep. This also has to be *after* the | ||
1401 | * update_ptr() call because update_ptr is likely to | ||
1402 | * do a wake_up() which will unset this before we ever | ||
1403 | * try to sleep, resuling in a tight loop in this code | ||
1404 | * instead of actually sleeping and waiting for an | ||
1405 | * interrupt to wake us up! | ||
1406 | */ | ||
1407 | set_current_state(TASK_INTERRUPTIBLE); | ||
1408 | /* | ||
1409 | * set the timeout to significantly longer than it *should* | ||
1410 | * take for the DAC to drain the DMA buffer | ||
1411 | */ | ||
1412 | tmo = (count * HZ) / (dmabuf->rate); | ||
1413 | if (!schedule_timeout(tmo >= 2 ? tmo : 2)) { | ||
1414 | printk(KERN_ERR "ali_audio: drain_spdifout, dma timeout?\n"); | ||
1415 | count = 0; | ||
1416 | break; | ||
1417 | } | ||
1418 | } | ||
1419 | set_current_state(TASK_RUNNING); | ||
1420 | remove_wait_queue(&dmabuf->wait, &wait); | ||
1421 | if (count > 0 && signal_pending(current) && signals_allowed) | ||
1422 | return -ERESTARTSYS; | ||
1423 | stop_spdifout(state); | ||
1424 | return 0; | ||
1425 | } | ||
1426 | |||
1427 | static void ali_channel_interrupt(struct ali_card *card) | ||
1428 | { | ||
1429 | int i, count; | ||
1430 | |||
1431 | for (i = 0; i < NR_HW_CH; i++) { | ||
1432 | struct ali_state *state = card->states[i]; | ||
1433 | struct ali_channel *c = NULL; | ||
1434 | struct dmabuf *dmabuf; | ||
1435 | unsigned long port = card->iobase; | ||
1436 | u16 status; | ||
1437 | if (!state) | ||
1438 | continue; | ||
1439 | if (!state->dmabuf.ready) | ||
1440 | continue; | ||
1441 | dmabuf = &state->dmabuf; | ||
1442 | if (codec_independent_spdif_locked > 0) { | ||
1443 | if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) { | ||
1444 | c = dmabuf->codec_spdifout_channel; | ||
1445 | } | ||
1446 | } else { | ||
1447 | if (controller_independent_spdif_locked > 0) { | ||
1448 | if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) | ||
1449 | c = dmabuf->controller_spdifout_channel; | ||
1450 | } else { | ||
1451 | if (dmabuf->enable & DAC_RUNNING) { | ||
1452 | c = dmabuf->write_channel; | ||
1453 | } else if (dmabuf->enable & ADC_RUNNING) { | ||
1454 | c = dmabuf->read_channel; | ||
1455 | } else | ||
1456 | continue; | ||
1457 | } | ||
1458 | } | ||
1459 | port += c->port; | ||
1460 | |||
1461 | status = inw(port + OFF_SR); | ||
1462 | |||
1463 | if (status & DMA_INT_COMPLETE) { | ||
1464 | /* only wake_up() waiters if this interrupt signals | ||
1465 | * us being beyond a userfragsize of data open or | ||
1466 | * available, and ali_update_ptr() does that for | ||
1467 | * us | ||
1468 | */ | ||
1469 | ali_update_ptr(state); | ||
1470 | } | ||
1471 | |||
1472 | if (status & DMA_INT_LVI) { | ||
1473 | ali_update_ptr(state); | ||
1474 | wake_up(&dmabuf->wait); | ||
1475 | |||
1476 | if (dmabuf->enable & DAC_RUNNING) | ||
1477 | count = dmabuf->count; | ||
1478 | else if (dmabuf->enable & ADC_RUNNING) | ||
1479 | count = dmabuf->dmasize - dmabuf->count; | ||
1480 | else if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) | ||
1481 | count = dmabuf->count; | ||
1482 | else if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) | ||
1483 | count = dmabuf->count; | ||
1484 | else count = 0; | ||
1485 | |||
1486 | if (count > 0) { | ||
1487 | if (dmabuf->enable & DAC_RUNNING) | ||
1488 | outl((1 << 1), state->card->iobase + ALI_DMACR); | ||
1489 | else if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) | ||
1490 | outl((1 << 3), state->card->iobase + ALI_DMACR); | ||
1491 | else if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) | ||
1492 | outl((1 << 7), state->card->iobase + ALI_DMACR); | ||
1493 | } else { | ||
1494 | if (dmabuf->enable & DAC_RUNNING) | ||
1495 | __stop_dac(state); | ||
1496 | if (dmabuf->enable & ADC_RUNNING) | ||
1497 | __stop_adc(state); | ||
1498 | if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) | ||
1499 | __stop_spdifout(state); | ||
1500 | if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) | ||
1501 | __stop_spdifout(state); | ||
1502 | dmabuf->enable = 0; | ||
1503 | wake_up(&dmabuf->wait); | ||
1504 | } | ||
1505 | |||
1506 | } | ||
1507 | if (!(status & DMA_INT_DCH)) { | ||
1508 | ali_update_ptr(state); | ||
1509 | wake_up(&dmabuf->wait); | ||
1510 | if (dmabuf->enable & DAC_RUNNING) | ||
1511 | count = dmabuf->count; | ||
1512 | else if (dmabuf->enable & ADC_RUNNING) | ||
1513 | count = dmabuf->dmasize - dmabuf->count; | ||
1514 | else if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) | ||
1515 | count = dmabuf->count; | ||
1516 | else if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) | ||
1517 | count = dmabuf->count; | ||
1518 | else | ||
1519 | count = 0; | ||
1520 | |||
1521 | if (count > 0) { | ||
1522 | if (dmabuf->enable & DAC_RUNNING) | ||
1523 | outl((1 << 1), state->card->iobase + ALI_DMACR); | ||
1524 | else if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) | ||
1525 | outl((1 << 3), state->card->iobase + ALI_DMACR); | ||
1526 | else if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) | ||
1527 | outl((1 << 7), state->card->iobase + ALI_DMACR); | ||
1528 | } else { | ||
1529 | if (dmabuf->enable & DAC_RUNNING) | ||
1530 | __stop_dac(state); | ||
1531 | if (dmabuf->enable & ADC_RUNNING) | ||
1532 | __stop_adc(state); | ||
1533 | if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) | ||
1534 | __stop_spdifout(state); | ||
1535 | if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) | ||
1536 | __stop_spdifout(state); | ||
1537 | dmabuf->enable = 0; | ||
1538 | wake_up(&dmabuf->wait); | ||
1539 | } | ||
1540 | } | ||
1541 | outw(status & DMA_INT_MASK, port + OFF_SR); | ||
1542 | } | ||
1543 | } | ||
1544 | |||
1545 | static irqreturn_t ali_interrupt(int irq, void *dev_id, struct pt_regs *regs) | ||
1546 | { | ||
1547 | struct ali_card *card = (struct ali_card *) dev_id; | ||
1548 | u32 status; | ||
1549 | u16 status2; | ||
1550 | |||
1551 | spin_lock(&card->lock); | ||
1552 | status = inl(card->iobase + ALI_INTERRUPTSR); | ||
1553 | if (!(status & INT_MASK)) { | ||
1554 | spin_unlock(&card->lock); | ||
1555 | return IRQ_NONE; /* not for us */ | ||
1556 | } | ||
1557 | |||
1558 | if (codec_independent_spdif_locked > 0) { | ||
1559 | if (globel == 0) { | ||
1560 | globel += 1; | ||
1561 | status2 = inw(card->iobase + 0x76); | ||
1562 | outw(status2 | 0x000c, card->iobase + 0x76); | ||
1563 | } else { | ||
1564 | if (status & (INT_PCMOUT | INT_PCMIN | INT_MICIN | INT_SPDIFOUT | INT_CODECSPDIFOUT)) | ||
1565 | ali_channel_interrupt(card); | ||
1566 | } | ||
1567 | } else { | ||
1568 | if (status & (INT_PCMOUT | INT_PCMIN | INT_MICIN | INT_SPDIFOUT | INT_CODECSPDIFOUT)) | ||
1569 | ali_channel_interrupt(card); | ||
1570 | } | ||
1571 | |||
1572 | /* clear 'em */ | ||
1573 | outl(status & INT_MASK, card->iobase + ALI_INTERRUPTSR); | ||
1574 | spin_unlock(&card->lock); | ||
1575 | return IRQ_HANDLED; | ||
1576 | } | ||
1577 | |||
1578 | /* in this loop, dmabuf.count signifies the amount of data that is | ||
1579 | waiting to be copied to the user's buffer. It is filled by the dma | ||
1580 | machine and drained by this loop. */ | ||
1581 | |||
1582 | static ssize_t ali_read(struct file *file, char __user *buffer, | ||
1583 | size_t count, loff_t * ppos) | ||
1584 | { | ||
1585 | struct ali_state *state = (struct ali_state *) file->private_data; | ||
1586 | struct ali_card *card = state ? state->card : NULL; | ||
1587 | struct dmabuf *dmabuf = &state->dmabuf; | ||
1588 | ssize_t ret; | ||
1589 | unsigned long flags; | ||
1590 | unsigned int swptr; | ||
1591 | int cnt; | ||
1592 | DECLARE_WAITQUEUE(waita, current); | ||
1593 | #ifdef DEBUG2 | ||
1594 | printk("ali_audio: ali_read called, count = %d\n", count); | ||
1595 | #endif | ||
1596 | if (dmabuf->mapped) | ||
1597 | return -ENXIO; | ||
1598 | if (dmabuf->enable & DAC_RUNNING) | ||
1599 | return -ENODEV; | ||
1600 | if (!dmabuf->read_channel) { | ||
1601 | dmabuf->ready = 0; | ||
1602 | dmabuf->read_channel = card->alloc_rec_pcm_channel(card); | ||
1603 | if (!dmabuf->read_channel) { | ||
1604 | return -EBUSY; | ||
1605 | } | ||
1606 | } | ||
1607 | if (!dmabuf->ready && (ret = prog_dmabuf(state, 1))) | ||
1608 | return ret; | ||
1609 | if (!access_ok(VERIFY_WRITE, buffer, count)) | ||
1610 | return -EFAULT; | ||
1611 | ret = 0; | ||
1612 | add_wait_queue(&dmabuf->wait, &waita); | ||
1613 | while (count > 0) { | ||
1614 | set_current_state(TASK_INTERRUPTIBLE); | ||
1615 | spin_lock_irqsave(&card->lock, flags); | ||
1616 | if (PM_SUSPENDED(card)) { | ||
1617 | spin_unlock_irqrestore(&card->lock, flags); | ||
1618 | schedule(); | ||
1619 | if (signal_pending(current)) { | ||
1620 | if (!ret) | ||
1621 | ret = -EAGAIN; | ||
1622 | break; | ||
1623 | } | ||
1624 | continue; | ||
1625 | } | ||
1626 | swptr = dmabuf->swptr; | ||
1627 | cnt = ali_get_available_read_data(state); | ||
1628 | // this is to make the copy_to_user simpler below | ||
1629 | if (cnt > (dmabuf->dmasize - swptr)) | ||
1630 | cnt = dmabuf->dmasize - swptr; | ||
1631 | spin_unlock_irqrestore(&card->lock, flags); | ||
1632 | if (cnt > count) | ||
1633 | cnt = count; | ||
1634 | /* Lop off the last two bits to force the code to always | ||
1635 | * write in full samples. This keeps software that sets | ||
1636 | * O_NONBLOCK but doesn't check the return value of the | ||
1637 | * write call from getting things out of state where they | ||
1638 | * think a full 4 byte sample was written when really only | ||
1639 | * a portion was, resulting in odd sound and stereo | ||
1640 | * hysteresis. | ||
1641 | */ | ||
1642 | cnt &= ~0x3; | ||
1643 | if (cnt <= 0) { | ||
1644 | unsigned long tmo; | ||
1645 | /* | ||
1646 | * Don't let us deadlock. The ADC won't start if | ||
1647 | * dmabuf->trigger isn't set. A call to SETTRIGGER | ||
1648 | * could have turned it off after we set it to on | ||
1649 | * previously. | ||
1650 | */ | ||
1651 | dmabuf->trigger = PCM_ENABLE_INPUT; | ||
1652 | /* | ||
1653 | * This does three things. Updates LVI to be correct, | ||
1654 | * makes sure the ADC is running, and updates the | ||
1655 | * hwptr. | ||
1656 | */ | ||
1657 | ali_update_lvi(state, 1); | ||
1658 | if (file->f_flags & O_NONBLOCK) { | ||
1659 | if (!ret) | ||
1660 | ret = -EAGAIN; | ||
1661 | goto done; | ||
1662 | } | ||
1663 | /* Set the timeout to how long it would take to fill | ||
1664 | * two of our buffers. If we haven't been woke up | ||
1665 | * by then, then we know something is wrong. | ||
1666 | */ | ||
1667 | tmo = (dmabuf->dmasize * HZ * 2) / (dmabuf->rate * 4); | ||
1668 | |||
1669 | /* There are two situations when sleep_on_timeout returns, one is when | ||
1670 | the interrupt is serviced correctly and the process is waked up by | ||
1671 | ISR ON TIME. Another is when timeout is expired, which means that | ||
1672 | either interrupt is NOT serviced correctly (pending interrupt) or it | ||
1673 | is TOO LATE for the process to be scheduled to run (scheduler latency) | ||
1674 | which results in a (potential) buffer overrun. And worse, there is | ||
1675 | NOTHING we can do to prevent it. */ | ||
1676 | if (!schedule_timeout(tmo >= 2 ? tmo : 2)) { | ||
1677 | printk(KERN_ERR | ||
1678 | "ali_audio: recording schedule timeout, " | ||
1679 | "dmasz %u fragsz %u count %i hwptr %u swptr %u\n", | ||
1680 | dmabuf->dmasize, dmabuf->fragsize, | ||
1681 | dmabuf->count, dmabuf->hwptr, | ||
1682 | dmabuf->swptr); | ||
1683 | /* a buffer overrun, we delay the recovery until next time the | ||
1684 | while loop begin and we REALLY have space to record */ | ||
1685 | } | ||
1686 | if (signal_pending(current)) { | ||
1687 | ret = ret ? ret : -ERESTARTSYS; | ||
1688 | goto done; | ||
1689 | } | ||
1690 | continue; | ||
1691 | } | ||
1692 | |||
1693 | if (copy_to_user(buffer, dmabuf->rawbuf + swptr, cnt)) { | ||
1694 | if (!ret) | ||
1695 | ret = -EFAULT; | ||
1696 | goto done; | ||
1697 | } | ||
1698 | |||
1699 | swptr = (swptr + cnt) % dmabuf->dmasize; | ||
1700 | spin_lock_irqsave(&card->lock, flags); | ||
1701 | if (PM_SUSPENDED(card)) { | ||
1702 | spin_unlock_irqrestore(&card->lock, flags); | ||
1703 | continue; | ||
1704 | } | ||
1705 | dmabuf->swptr = swptr; | ||
1706 | dmabuf->count -= cnt; | ||
1707 | spin_unlock_irqrestore(&card->lock, flags); | ||
1708 | count -= cnt; | ||
1709 | buffer += cnt; | ||
1710 | ret += cnt; | ||
1711 | } | ||
1712 | done: | ||
1713 | ali_update_lvi(state, 1); | ||
1714 | set_current_state(TASK_RUNNING); | ||
1715 | remove_wait_queue(&dmabuf->wait, &waita); | ||
1716 | return ret; | ||
1717 | } | ||
1718 | |||
1719 | /* in this loop, dmabuf.count signifies the amount of data that is waiting to be dma to | ||
1720 | the soundcard. it is drained by the dma machine and filled by this loop. */ | ||
1721 | static ssize_t ali_write(struct file *file, | ||
1722 | const char __user *buffer, size_t count, loff_t * ppos) | ||
1723 | { | ||
1724 | struct ali_state *state = (struct ali_state *) file->private_data; | ||
1725 | struct ali_card *card = state ? state->card : NULL; | ||
1726 | struct dmabuf *dmabuf = &state->dmabuf; | ||
1727 | ssize_t ret; | ||
1728 | unsigned long flags; | ||
1729 | unsigned int swptr = 0; | ||
1730 | int cnt, x; | ||
1731 | DECLARE_WAITQUEUE(waita, current); | ||
1732 | #ifdef DEBUG2 | ||
1733 | printk("ali_audio: ali_write called, count = %d\n", count); | ||
1734 | #endif | ||
1735 | if (dmabuf->mapped) | ||
1736 | return -ENXIO; | ||
1737 | if (dmabuf->enable & ADC_RUNNING) | ||
1738 | return -ENODEV; | ||
1739 | if (codec_independent_spdif_locked > 0) { | ||
1740 | if (!dmabuf->codec_spdifout_channel) { | ||
1741 | dmabuf->ready = 0; | ||
1742 | dmabuf->codec_spdifout_channel = card->alloc_codec_spdifout_channel(card); | ||
1743 | if (!dmabuf->codec_spdifout_channel) | ||
1744 | return -EBUSY; | ||
1745 | } | ||
1746 | } else { | ||
1747 | if (controller_independent_spdif_locked > 0) { | ||
1748 | if (!dmabuf->controller_spdifout_channel) { | ||
1749 | dmabuf->ready = 0; | ||
1750 | dmabuf->controller_spdifout_channel = card->alloc_controller_spdifout_channel(card); | ||
1751 | if (!dmabuf->controller_spdifout_channel) | ||
1752 | return -EBUSY; | ||
1753 | } | ||
1754 | } else { | ||
1755 | if (!dmabuf->write_channel) { | ||
1756 | dmabuf->ready = 0; | ||
1757 | dmabuf->write_channel = | ||
1758 | card->alloc_pcm_channel(card); | ||
1759 | if (!dmabuf->write_channel) | ||
1760 | return -EBUSY; | ||
1761 | } | ||
1762 | } | ||
1763 | } | ||
1764 | |||
1765 | if (codec_independent_spdif_locked > 0) { | ||
1766 | if (!dmabuf->ready && (ret = prog_dmabuf(state, 2))) | ||
1767 | return ret; | ||
1768 | } else { | ||
1769 | if (controller_independent_spdif_locked > 0) { | ||
1770 | if (!dmabuf->ready && (ret = prog_dmabuf(state, 3))) | ||
1771 | return ret; | ||
1772 | } else { | ||
1773 | |||
1774 | if (!dmabuf->ready && (ret = prog_dmabuf(state, 0))) | ||
1775 | return ret; | ||
1776 | } | ||
1777 | } | ||
1778 | if (!access_ok(VERIFY_READ, buffer, count)) | ||
1779 | return -EFAULT; | ||
1780 | ret = 0; | ||
1781 | add_wait_queue(&dmabuf->wait, &waita); | ||
1782 | while (count > 0) { | ||
1783 | set_current_state(TASK_INTERRUPTIBLE); | ||
1784 | spin_lock_irqsave(&state->card->lock, flags); | ||
1785 | if (PM_SUSPENDED(card)) { | ||
1786 | spin_unlock_irqrestore(&card->lock, flags); | ||
1787 | schedule(); | ||
1788 | if (signal_pending(current)) { | ||
1789 | if (!ret) | ||
1790 | ret = -EAGAIN; | ||
1791 | break; | ||
1792 | } | ||
1793 | continue; | ||
1794 | } | ||
1795 | |||
1796 | swptr = dmabuf->swptr; | ||
1797 | cnt = ali_get_free_write_space(state); | ||
1798 | /* Bound the maximum size to how much we can copy to the | ||
1799 | * dma buffer before we hit the end. If we have more to | ||
1800 | * copy then it will get done in a second pass of this | ||
1801 | * loop starting from the beginning of the buffer. | ||
1802 | */ | ||
1803 | if (cnt > (dmabuf->dmasize - swptr)) | ||
1804 | cnt = dmabuf->dmasize - swptr; | ||
1805 | spin_unlock_irqrestore(&state->card->lock, flags); | ||
1806 | #ifdef DEBUG2 | ||
1807 | printk(KERN_INFO | ||
1808 | "ali_audio: ali_write: %d bytes available space\n", | ||
1809 | cnt); | ||
1810 | #endif | ||
1811 | if (cnt > count) | ||
1812 | cnt = count; | ||
1813 | /* Lop off the last two bits to force the code to always | ||
1814 | * write in full samples. This keeps software that sets | ||
1815 | * O_NONBLOCK but doesn't check the return value of the | ||
1816 | * write call from getting things out of state where they | ||
1817 | * think a full 4 byte sample was written when really only | ||
1818 | * a portion was, resulting in odd sound and stereo | ||
1819 | * hysteresis. | ||
1820 | */ | ||
1821 | cnt &= ~0x3; | ||
1822 | if (cnt <= 0) { | ||
1823 | unsigned long tmo; | ||
1824 | // There is data waiting to be played | ||
1825 | /* | ||
1826 | * Force the trigger setting since we would | ||
1827 | * deadlock with it set any other way | ||
1828 | */ | ||
1829 | if (codec_independent_spdif_locked > 0) { | ||
1830 | dmabuf->trigger = SPDIF_ENABLE_OUTPUT; | ||
1831 | ali_update_lvi(state, 2); | ||
1832 | } else { | ||
1833 | if (controller_independent_spdif_locked > 0) { | ||
1834 | dmabuf->trigger = SPDIF_ENABLE_OUTPUT; | ||
1835 | ali_update_lvi(state, 3); | ||
1836 | } else { | ||
1837 | |||
1838 | dmabuf->trigger = PCM_ENABLE_OUTPUT; | ||
1839 | ali_update_lvi(state, 0); | ||
1840 | } | ||
1841 | } | ||
1842 | if (file->f_flags & O_NONBLOCK) { | ||
1843 | if (!ret) | ||
1844 | ret = -EAGAIN; | ||
1845 | goto ret; | ||
1846 | } | ||
1847 | /* Not strictly correct but works */ | ||
1848 | tmo = (dmabuf->dmasize * HZ * 2) / (dmabuf->rate * 4); | ||
1849 | /* There are two situations when sleep_on_timeout returns, one is when | ||
1850 | the interrupt is serviced correctly and the process is waked up by | ||
1851 | ISR ON TIME. Another is when timeout is expired, which means that | ||
1852 | either interrupt is NOT serviced correctly (pending interrupt) or it | ||
1853 | is TOO LATE for the process to be scheduled to run (scheduler latency) | ||
1854 | which results in a (potential) buffer underrun. And worse, there is | ||
1855 | NOTHING we can do to prevent it. */ | ||
1856 | |||
1857 | /* FIXME - do timeout handling here !! */ | ||
1858 | schedule_timeout(tmo >= 2 ? tmo : 2); | ||
1859 | |||
1860 | if (signal_pending(current)) { | ||
1861 | if (!ret) | ||
1862 | ret = -ERESTARTSYS; | ||
1863 | goto ret; | ||
1864 | } | ||
1865 | continue; | ||
1866 | } | ||
1867 | if (copy_from_user(dmabuf->rawbuf + swptr, buffer, cnt)) { | ||
1868 | if (!ret) | ||
1869 | ret = -EFAULT; | ||
1870 | goto ret; | ||
1871 | } | ||
1872 | |||
1873 | swptr = (swptr + cnt) % dmabuf->dmasize; | ||
1874 | spin_lock_irqsave(&state->card->lock, flags); | ||
1875 | if (PM_SUSPENDED(card)) { | ||
1876 | spin_unlock_irqrestore(&card->lock, flags); | ||
1877 | continue; | ||
1878 | } | ||
1879 | |||
1880 | dmabuf->swptr = swptr; | ||
1881 | dmabuf->count += cnt; | ||
1882 | count -= cnt; | ||
1883 | buffer += cnt; | ||
1884 | ret += cnt; | ||
1885 | spin_unlock_irqrestore(&state->card->lock, flags); | ||
1886 | } | ||
1887 | if (swptr % dmabuf->fragsize) { | ||
1888 | x = dmabuf->fragsize - (swptr % dmabuf->fragsize); | ||
1889 | memset(dmabuf->rawbuf + swptr, '\0', x); | ||
1890 | } | ||
1891 | ret: | ||
1892 | if (codec_independent_spdif_locked > 0) { | ||
1893 | ali_update_lvi(state, 2); | ||
1894 | } else { | ||
1895 | if (controller_independent_spdif_locked > 0) { | ||
1896 | ali_update_lvi(state, 3); | ||
1897 | } else { | ||
1898 | ali_update_lvi(state, 0); | ||
1899 | } | ||
1900 | } | ||
1901 | set_current_state(TASK_RUNNING); | ||
1902 | remove_wait_queue(&dmabuf->wait, &waita); | ||
1903 | return ret; | ||
1904 | } | ||
1905 | |||
1906 | /* No kernel lock - we have our own spinlock */ | ||
1907 | static unsigned int ali_poll(struct file *file, struct poll_table_struct | ||
1908 | *wait) | ||
1909 | { | ||
1910 | struct ali_state *state = (struct ali_state *) file->private_data; | ||
1911 | struct dmabuf *dmabuf = &state->dmabuf; | ||
1912 | unsigned long flags; | ||
1913 | unsigned int mask = 0; | ||
1914 | if (!dmabuf->ready) | ||
1915 | return 0; | ||
1916 | poll_wait(file, &dmabuf->wait, wait); | ||
1917 | spin_lock_irqsave(&state->card->lock, flags); | ||
1918 | ali_update_ptr(state); | ||
1919 | if (file->f_mode & FMODE_READ && dmabuf->enable & ADC_RUNNING) { | ||
1920 | if (dmabuf->count >= (signed) dmabuf->fragsize) | ||
1921 | mask |= POLLIN | POLLRDNORM; | ||
1922 | } | ||
1923 | if (file->f_mode & FMODE_WRITE && (dmabuf->enable & (DAC_RUNNING|CODEC_SPDIFOUT_RUNNING|CONTROLLER_SPDIFOUT_RUNNING))) { | ||
1924 | if ((signed) dmabuf->dmasize >= dmabuf->count + (signed) dmabuf->fragsize) | ||
1925 | mask |= POLLOUT | POLLWRNORM; | ||
1926 | } | ||
1927 | spin_unlock_irqrestore(&state->card->lock, flags); | ||
1928 | return mask; | ||
1929 | } | ||
1930 | |||
1931 | static int ali_mmap(struct file *file, struct vm_area_struct *vma) | ||
1932 | { | ||
1933 | struct ali_state *state = (struct ali_state *) file->private_data; | ||
1934 | struct dmabuf *dmabuf = &state->dmabuf; | ||
1935 | int ret = -EINVAL; | ||
1936 | unsigned long size; | ||
1937 | lock_kernel(); | ||
1938 | if (vma->vm_flags & VM_WRITE) { | ||
1939 | if (!dmabuf->write_channel && (dmabuf->write_channel = state->card->alloc_pcm_channel(state->card)) == NULL) { | ||
1940 | ret = -EBUSY; | ||
1941 | goto out; | ||
1942 | } | ||
1943 | } | ||
1944 | if (vma->vm_flags & VM_READ) { | ||
1945 | if (!dmabuf->read_channel && (dmabuf->read_channel = state->card->alloc_rec_pcm_channel(state->card)) == NULL) { | ||
1946 | ret = -EBUSY; | ||
1947 | goto out; | ||
1948 | } | ||
1949 | } | ||
1950 | if ((ret = prog_dmabuf(state, 0)) != 0) | ||
1951 | goto out; | ||
1952 | ret = -EINVAL; | ||
1953 | if (vma->vm_pgoff != 0) | ||
1954 | goto out; | ||
1955 | size = vma->vm_end - vma->vm_start; | ||
1956 | if (size > (PAGE_SIZE << dmabuf->buforder)) | ||
1957 | goto out; | ||
1958 | ret = -EAGAIN; | ||
1959 | if (remap_pfn_range(vma, vma->vm_start, | ||
1960 | virt_to_phys(dmabuf->rawbuf) >> PAGE_SHIFT, | ||
1961 | size, vma->vm_page_prot)) | ||
1962 | goto out; | ||
1963 | dmabuf->mapped = 1; | ||
1964 | dmabuf->trigger = 0; | ||
1965 | ret = 0; | ||
1966 | out: | ||
1967 | unlock_kernel(); | ||
1968 | return ret; | ||
1969 | } | ||
1970 | |||
1971 | static int ali_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) | ||
1972 | { | ||
1973 | struct ali_state *state = (struct ali_state *) file->private_data; | ||
1974 | struct ali_channel *c = NULL; | ||
1975 | struct dmabuf *dmabuf = &state->dmabuf; | ||
1976 | unsigned long flags; | ||
1977 | audio_buf_info abinfo; | ||
1978 | count_info cinfo; | ||
1979 | unsigned int i_scr; | ||
1980 | int val = 0, ret; | ||
1981 | struct ac97_codec *codec = state->card->ac97_codec[0]; | ||
1982 | void __user *argp = (void __user *)arg; | ||
1983 | int __user *p = argp; | ||
1984 | |||
1985 | #ifdef DEBUG | ||
1986 | printk("ali_audio: ali_ioctl, arg=0x%x, cmd=", | ||
1987 | arg ? *p : 0); | ||
1988 | #endif | ||
1989 | switch (cmd) { | ||
1990 | case OSS_GETVERSION: | ||
1991 | #ifdef DEBUG | ||
1992 | printk("OSS_GETVERSION\n"); | ||
1993 | #endif | ||
1994 | return put_user(SOUND_VERSION, p); | ||
1995 | case SNDCTL_DSP_RESET: | ||
1996 | #ifdef DEBUG | ||
1997 | printk("SNDCTL_DSP_RESET\n"); | ||
1998 | #endif | ||
1999 | spin_lock_irqsave(&state->card->lock, flags); | ||
2000 | if (dmabuf->enable == DAC_RUNNING) { | ||
2001 | c = dmabuf->write_channel; | ||
2002 | __stop_dac(state); | ||
2003 | } | ||
2004 | if (dmabuf->enable == ADC_RUNNING) { | ||
2005 | c = dmabuf->read_channel; | ||
2006 | __stop_adc(state); | ||
2007 | } | ||
2008 | if (dmabuf->enable == CODEC_SPDIFOUT_RUNNING) { | ||
2009 | c = dmabuf->codec_spdifout_channel; | ||
2010 | __stop_spdifout(state); | ||
2011 | } | ||
2012 | if (dmabuf->enable == CONTROLLER_SPDIFOUT_RUNNING) { | ||
2013 | c = dmabuf->controller_spdifout_channel; | ||
2014 | __stop_spdifout(state); | ||
2015 | } | ||
2016 | if (c != NULL) { | ||
2017 | outb(2, state->card->iobase + c->port + OFF_CR); /* reset DMA machine */ | ||
2018 | outl(virt_to_bus(&c->sg[0]), | ||
2019 | state->card->iobase + c->port + OFF_BDBAR); | ||
2020 | outb(0, state->card->iobase + c->port + OFF_CIV); | ||
2021 | outb(0, state->card->iobase + c->port + OFF_LVI); | ||
2022 | } | ||
2023 | |||
2024 | spin_unlock_irqrestore(&state->card->lock, flags); | ||
2025 | synchronize_irq(state->card->pci_dev->irq); | ||
2026 | dmabuf->ready = 0; | ||
2027 | dmabuf->swptr = dmabuf->hwptr = 0; | ||
2028 | dmabuf->count = dmabuf->total_bytes = 0; | ||
2029 | return 0; | ||
2030 | case SNDCTL_DSP_SYNC: | ||
2031 | #ifdef DEBUG | ||
2032 | printk("SNDCTL_DSP_SYNC\n"); | ||
2033 | #endif | ||
2034 | if (codec_independent_spdif_locked > 0) { | ||
2035 | if (dmabuf->enable != CODEC_SPDIFOUT_RUNNING | ||
2036 | || file->f_flags & O_NONBLOCK) | ||
2037 | return 0; | ||
2038 | if ((val = drain_spdifout(state, 1))) | ||
2039 | return val; | ||
2040 | } else { | ||
2041 | if (controller_independent_spdif_locked > 0) { | ||
2042 | if (dmabuf->enable != | ||
2043 | CONTROLLER_SPDIFOUT_RUNNING | ||
2044 | || file->f_flags & O_NONBLOCK) | ||
2045 | return 0; | ||
2046 | if ((val = drain_spdifout(state, 1))) | ||
2047 | return val; | ||
2048 | } else { | ||
2049 | if (dmabuf->enable != DAC_RUNNING | ||
2050 | || file->f_flags & O_NONBLOCK) | ||
2051 | return 0; | ||
2052 | if ((val = drain_dac(state, 1))) | ||
2053 | return val; | ||
2054 | } | ||
2055 | } | ||
2056 | dmabuf->total_bytes = 0; | ||
2057 | return 0; | ||
2058 | case SNDCTL_DSP_SPEED: /* set smaple rate */ | ||
2059 | #ifdef DEBUG | ||
2060 | printk("SNDCTL_DSP_SPEED\n"); | ||
2061 | #endif | ||
2062 | if (get_user(val, p)) | ||
2063 | return -EFAULT; | ||
2064 | if (val >= 0) { | ||
2065 | if (file->f_mode & FMODE_WRITE) { | ||
2066 | if ((state->card->ac97_status & SPDIF_ON)) { /* S/PDIF Enabled */ | ||
2067 | /* RELTEK ALC650 only support 48000, need to check that */ | ||
2068 | if (ali_valid_spdif_rate(codec, val)) { | ||
2069 | if (codec_independent_spdif_locked > 0) { | ||
2070 | ali_set_spdif_output(state, -1, 0); | ||
2071 | stop_spdifout(state); | ||
2072 | dmabuf->ready = 0; | ||
2073 | /* I add test codec independent spdif out */ | ||
2074 | spin_lock_irqsave(&state->card->lock, flags); | ||
2075 | ali_set_codecspdifout_rate(state, val); // I modified | ||
2076 | spin_unlock_irqrestore(&state->card->lock, flags); | ||
2077 | /* Set S/PDIF transmitter rate. */ | ||
2078 | i_scr = inl(state->card->iobase + ALI_SCR); | ||
2079 | if ((i_scr & 0x00300000) == 0x00100000) { | ||
2080 | ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked); | ||
2081 | } else { | ||
2082 | if ((i_scr&0x00300000) == 0x00200000) | ||
2083 | { | ||
2084 | ali_set_spdif_output(state, AC97_EA_SPSA_6_9, codec_independent_spdif_locked); | ||
2085 | } else { | ||
2086 | if ((i_scr & 0x00300000) == 0x00300000) { | ||
2087 | ali_set_spdif_output(state, AC97_EA_SPSA_10_11, codec_independent_spdif_locked); | ||
2088 | } else { | ||
2089 | ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked); | ||
2090 | } | ||
2091 | } | ||
2092 | } | ||
2093 | |||
2094 | if (!(state->card->ac97_status & SPDIF_ON)) { | ||
2095 | val = dmabuf->rate; | ||
2096 | } | ||
2097 | } else { | ||
2098 | if (controller_independent_spdif_locked > 0) | ||
2099 | { | ||
2100 | stop_spdifout(state); | ||
2101 | dmabuf->ready = 0; | ||
2102 | spin_lock_irqsave(&state->card->lock, flags); | ||
2103 | ali_set_spdifout_rate(state, controller_independent_spdif_locked); | ||
2104 | spin_unlock_irqrestore(&state->card->lock, flags); | ||
2105 | } else { | ||
2106 | /* Set DAC rate */ | ||
2107 | ali_set_spdif_output(state, -1, 0); | ||
2108 | stop_dac(state); | ||
2109 | dmabuf->ready = 0; | ||
2110 | spin_lock_irqsave(&state->card->lock, flags); | ||
2111 | ali_set_dac_rate(state, val); | ||
2112 | spin_unlock_irqrestore(&state->card->lock, flags); | ||
2113 | /* Set S/PDIF transmitter rate. */ | ||
2114 | ali_set_spdif_output(state, AC97_EA_SPSA_3_4, val); | ||
2115 | if (!(state->card->ac97_status & SPDIF_ON)) | ||
2116 | { | ||
2117 | val = dmabuf->rate; | ||
2118 | } | ||
2119 | } | ||
2120 | } | ||
2121 | } else { /* Not a valid rate for S/PDIF, ignore it */ | ||
2122 | val = dmabuf->rate; | ||
2123 | } | ||
2124 | } else { | ||
2125 | stop_dac(state); | ||
2126 | dmabuf->ready = 0; | ||
2127 | spin_lock_irqsave(&state->card->lock, flags); | ||
2128 | ali_set_dac_rate(state, val); | ||
2129 | spin_unlock_irqrestore(&state->card->lock, flags); | ||
2130 | } | ||
2131 | } | ||
2132 | if (file->f_mode & FMODE_READ) { | ||
2133 | stop_adc(state); | ||
2134 | dmabuf->ready = 0; | ||
2135 | spin_lock_irqsave(&state->card->lock, flags); | ||
2136 | ali_set_adc_rate(state, val); | ||
2137 | spin_unlock_irqrestore(&state->card->lock, flags); | ||
2138 | } | ||
2139 | } | ||
2140 | return put_user(dmabuf->rate, p); | ||
2141 | case SNDCTL_DSP_STEREO: /* set stereo or mono channel */ | ||
2142 | #ifdef DEBUG | ||
2143 | printk("SNDCTL_DSP_STEREO\n"); | ||
2144 | #endif | ||
2145 | if (dmabuf->enable & DAC_RUNNING) { | ||
2146 | stop_dac(state); | ||
2147 | } | ||
2148 | if (dmabuf->enable & ADC_RUNNING) { | ||
2149 | stop_adc(state); | ||
2150 | } | ||
2151 | if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) { | ||
2152 | stop_spdifout(state); | ||
2153 | } | ||
2154 | if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) { | ||
2155 | stop_spdifout(state); | ||
2156 | } | ||
2157 | return put_user(1, p); | ||
2158 | case SNDCTL_DSP_GETBLKSIZE: | ||
2159 | if (file->f_mode & FMODE_WRITE) { | ||
2160 | if (codec_independent_spdif_locked > 0) { | ||
2161 | if (!dmabuf->ready && (val = prog_dmabuf(state, 2))) | ||
2162 | return val; | ||
2163 | } else { | ||
2164 | if (controller_independent_spdif_locked > 0) { | ||
2165 | if (!dmabuf->ready && (val = prog_dmabuf(state, 3))) | ||
2166 | return val; | ||
2167 | } else { | ||
2168 | if (!dmabuf->ready && (val = prog_dmabuf(state, 0))) | ||
2169 | return val; | ||
2170 | } | ||
2171 | } | ||
2172 | } | ||
2173 | |||
2174 | if (file->f_mode & FMODE_READ) { | ||
2175 | if (!dmabuf->ready && (val = prog_dmabuf(state, 1))) | ||
2176 | return val; | ||
2177 | } | ||
2178 | #ifdef DEBUG | ||
2179 | printk("SNDCTL_DSP_GETBLKSIZE %d\n", dmabuf->userfragsize); | ||
2180 | #endif | ||
2181 | return put_user(dmabuf->userfragsize, p); | ||
2182 | case SNDCTL_DSP_GETFMTS: /* Returns a mask of supported sample format */ | ||
2183 | #ifdef DEBUG | ||
2184 | printk("SNDCTL_DSP_GETFMTS\n"); | ||
2185 | #endif | ||
2186 | return put_user(AFMT_S16_LE, p); | ||
2187 | case SNDCTL_DSP_SETFMT: /* Select sample format */ | ||
2188 | #ifdef DEBUG | ||
2189 | printk("SNDCTL_DSP_SETFMT\n"); | ||
2190 | #endif | ||
2191 | return put_user(AFMT_S16_LE, p); | ||
2192 | case SNDCTL_DSP_CHANNELS: // add support 4,6 channel | ||
2193 | #ifdef DEBUG | ||
2194 | printk("SNDCTL_DSP_CHANNELS\n"); | ||
2195 | #endif | ||
2196 | if (get_user(val, p)) | ||
2197 | return -EFAULT; | ||
2198 | if (val > 0) { | ||
2199 | if (dmabuf->enable & DAC_RUNNING) { | ||
2200 | stop_dac(state); | ||
2201 | } | ||
2202 | if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) { | ||
2203 | stop_spdifout(state); | ||
2204 | } | ||
2205 | if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) { | ||
2206 | stop_spdifout(state); | ||
2207 | } | ||
2208 | if (dmabuf->enable & ADC_RUNNING) { | ||
2209 | stop_adc(state); | ||
2210 | } | ||
2211 | } else { | ||
2212 | return put_user(state->card->channels, p); | ||
2213 | } | ||
2214 | |||
2215 | i_scr = inl(state->card->iobase + ALI_SCR); | ||
2216 | /* Current # of channels enabled */ | ||
2217 | if (i_scr & 0x00000100) | ||
2218 | ret = 4; | ||
2219 | else if (i_scr & 0x00000200) | ||
2220 | ret = 6; | ||
2221 | else | ||
2222 | ret = 2; | ||
2223 | switch (val) { | ||
2224 | case 2: /* 2 channels is always supported */ | ||
2225 | if (codec_independent_spdif_locked > 0) { | ||
2226 | outl(((i_scr & 0xfffffcff) | 0x00100000), (state->card->iobase + ALI_SCR)); | ||
2227 | } else | ||
2228 | outl((i_scr & 0xfffffcff), (state->card->iobase + ALI_SCR)); | ||
2229 | /* Do we need to change mixer settings???? */ | ||
2230 | break; | ||
2231 | case 4: /* Supported on some chipsets, better check first */ | ||
2232 | if (codec_independent_spdif_locked > 0) { | ||
2233 | outl(((i_scr & 0xfffffcff) | 0x00000100 | 0x00200000), (state->card->iobase + ALI_SCR)); | ||
2234 | } else | ||
2235 | outl(((i_scr & 0xfffffcff) | 0x00000100), (state->card->iobase + ALI_SCR)); | ||
2236 | break; | ||
2237 | case 6: /* Supported on some chipsets, better check first */ | ||
2238 | if (codec_independent_spdif_locked > 0) { | ||
2239 | outl(((i_scr & 0xfffffcff) | 0x00000200 | 0x00008000 | 0x00300000), (state->card->iobase + ALI_SCR)); | ||
2240 | } else | ||
2241 | outl(((i_scr & 0xfffffcff) | 0x00000200 | 0x00008000), (state->card->iobase + ALI_SCR)); | ||
2242 | break; | ||
2243 | default: /* nothing else is ever supported by the chipset */ | ||
2244 | val = ret; | ||
2245 | break; | ||
2246 | } | ||
2247 | return put_user(val, p); | ||
2248 | case SNDCTL_DSP_POST: /* the user has sent all data and is notifying us */ | ||
2249 | /* we update the swptr to the end of the last sg segment then return */ | ||
2250 | #ifdef DEBUG | ||
2251 | printk("SNDCTL_DSP_POST\n"); | ||
2252 | #endif | ||
2253 | if (codec_independent_spdif_locked > 0) { | ||
2254 | if (!dmabuf->ready || (dmabuf->enable != CODEC_SPDIFOUT_RUNNING)) | ||
2255 | return 0; | ||
2256 | } else { | ||
2257 | if (controller_independent_spdif_locked > 0) { | ||
2258 | if (!dmabuf->ready || (dmabuf->enable != CONTROLLER_SPDIFOUT_RUNNING)) | ||
2259 | return 0; | ||
2260 | } else { | ||
2261 | if (!dmabuf->ready || (dmabuf->enable != DAC_RUNNING)) | ||
2262 | return 0; | ||
2263 | } | ||
2264 | } | ||
2265 | if ((dmabuf->swptr % dmabuf->fragsize) != 0) { | ||
2266 | val = dmabuf->fragsize - (dmabuf->swptr % dmabuf->fragsize); | ||
2267 | dmabuf->swptr += val; | ||
2268 | dmabuf->count += val; | ||
2269 | } | ||
2270 | return 0; | ||
2271 | case SNDCTL_DSP_SUBDIVIDE: | ||
2272 | if (dmabuf->subdivision) | ||
2273 | return -EINVAL; | ||
2274 | if (get_user(val, p)) | ||
2275 | return -EFAULT; | ||
2276 | if (val != 1 && val != 2 && val != 4) | ||
2277 | return -EINVAL; | ||
2278 | #ifdef DEBUG | ||
2279 | printk("SNDCTL_DSP_SUBDIVIDE %d\n", val); | ||
2280 | #endif | ||
2281 | dmabuf->subdivision = val; | ||
2282 | dmabuf->ready = 0; | ||
2283 | return 0; | ||
2284 | case SNDCTL_DSP_SETFRAGMENT: | ||
2285 | if (get_user(val, p)) | ||
2286 | return -EFAULT; | ||
2287 | dmabuf->ossfragsize = 1 << (val & 0xffff); | ||
2288 | dmabuf->ossmaxfrags = (val >> 16) & 0xffff; | ||
2289 | if (!dmabuf->ossfragsize || !dmabuf->ossmaxfrags) | ||
2290 | return -EINVAL; | ||
2291 | /* | ||
2292 | * Bound the frag size into our allowed range of 256 - 4096 | ||
2293 | */ | ||
2294 | if (dmabuf->ossfragsize < 256) | ||
2295 | dmabuf->ossfragsize = 256; | ||
2296 | else if (dmabuf->ossfragsize > 4096) | ||
2297 | dmabuf->ossfragsize = 4096; | ||
2298 | /* | ||
2299 | * The numfrags could be something reasonable, or it could | ||
2300 | * be 0xffff meaning "Give me as much as possible". So, | ||
2301 | * we check the numfrags * fragsize doesn't exceed our | ||
2302 | * 64k buffer limit, nor is it less than our 8k minimum. | ||
2303 | * If it fails either one of these checks, then adjust the | ||
2304 | * number of fragments, not the size of them. It's OK if | ||
2305 | * our number of fragments doesn't equal 32 or anything | ||
2306 | * like our hardware based number now since we are using | ||
2307 | * a different frag count for the hardware. Before we get | ||
2308 | * into this though, bound the maxfrags to avoid overflow | ||
2309 | * issues. A reasonable bound would be 64k / 256 since our | ||
2310 | * maximum buffer size is 64k and our minimum frag size is | ||
2311 | * 256. On the other end, our minimum buffer size is 8k and | ||
2312 | * our maximum frag size is 4k, so the lower bound should | ||
2313 | * be 2. | ||
2314 | */ | ||
2315 | if (dmabuf->ossmaxfrags > 256) | ||
2316 | dmabuf->ossmaxfrags = 256; | ||
2317 | else if (dmabuf->ossmaxfrags < 2) | ||
2318 | dmabuf->ossmaxfrags = 2; | ||
2319 | val = dmabuf->ossfragsize * dmabuf->ossmaxfrags; | ||
2320 | while (val < 8192) { | ||
2321 | val <<= 1; | ||
2322 | dmabuf->ossmaxfrags <<= 1; | ||
2323 | } | ||
2324 | while (val > 65536) { | ||
2325 | val >>= 1; | ||
2326 | dmabuf->ossmaxfrags >>= 1; | ||
2327 | } | ||
2328 | dmabuf->ready = 0; | ||
2329 | #ifdef DEBUG | ||
2330 | printk("SNDCTL_DSP_SETFRAGMENT 0x%x, %d, %d\n", val, | ||
2331 | dmabuf->ossfragsize, dmabuf->ossmaxfrags); | ||
2332 | #endif | ||
2333 | return 0; | ||
2334 | case SNDCTL_DSP_GETOSPACE: | ||
2335 | if (!(file->f_mode & FMODE_WRITE)) | ||
2336 | return -EINVAL; | ||
2337 | if (codec_independent_spdif_locked > 0) { | ||
2338 | if (!dmabuf->ready && (val = prog_dmabuf(state, 2)) != 0) | ||
2339 | return val; | ||
2340 | } else { | ||
2341 | if (controller_independent_spdif_locked > 0) { | ||
2342 | if (!dmabuf->ready && (val = prog_dmabuf(state, 3)) != 0) | ||
2343 | return val; | ||
2344 | } else { | ||
2345 | if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0) | ||
2346 | return val; | ||
2347 | } | ||
2348 | } | ||
2349 | spin_lock_irqsave(&state->card->lock, flags); | ||
2350 | ali_update_ptr(state); | ||
2351 | abinfo.fragsize = dmabuf->userfragsize; | ||
2352 | abinfo.fragstotal = dmabuf->userfrags; | ||
2353 | if (dmabuf->mapped) | ||
2354 | abinfo.bytes = dmabuf->dmasize; | ||
2355 | else | ||
2356 | abinfo.bytes = ali_get_free_write_space(state); | ||
2357 | abinfo.fragments = abinfo.bytes / dmabuf->userfragsize; | ||
2358 | spin_unlock_irqrestore(&state->card->lock, flags); | ||
2359 | #if defined(DEBUG) || defined(DEBUG_MMAP) | ||
2360 | printk("SNDCTL_DSP_GETOSPACE %d, %d, %d, %d\n", | ||
2361 | abinfo.bytes, abinfo.fragsize, abinfo.fragments, | ||
2362 | abinfo.fragstotal); | ||
2363 | #endif | ||
2364 | return copy_to_user(argp, &abinfo, | ||
2365 | sizeof(abinfo)) ? -EFAULT : 0; | ||
2366 | case SNDCTL_DSP_GETOPTR: | ||
2367 | if (!(file->f_mode & FMODE_WRITE)) | ||
2368 | return -EINVAL; | ||
2369 | if (codec_independent_spdif_locked > 0) { | ||
2370 | if (!dmabuf->ready && (val = prog_dmabuf(state, 2)) != 0) | ||
2371 | return val; | ||
2372 | } else { | ||
2373 | if (controller_independent_spdif_locked > 0) { | ||
2374 | if (!dmabuf->ready && (val = prog_dmabuf(state, 3)) != 0) | ||
2375 | return val; | ||
2376 | } else { | ||
2377 | if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0) | ||
2378 | return val; | ||
2379 | } | ||
2380 | } | ||
2381 | spin_lock_irqsave(&state->card->lock, flags); | ||
2382 | val = ali_get_free_write_space(state); | ||
2383 | cinfo.bytes = dmabuf->total_bytes; | ||
2384 | cinfo.ptr = dmabuf->hwptr; | ||
2385 | cinfo.blocks = val / dmabuf->userfragsize; | ||
2386 | if (codec_independent_spdif_locked > 0) { | ||
2387 | if (dmabuf->mapped && (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) { | ||
2388 | dmabuf->count += val; | ||
2389 | dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize; | ||
2390 | __ali_update_lvi(state, 2); | ||
2391 | } | ||
2392 | } else { | ||
2393 | if (controller_independent_spdif_locked > 0) { | ||
2394 | if (dmabuf->mapped && (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) { | ||
2395 | dmabuf->count += val; | ||
2396 | dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize; | ||
2397 | __ali_update_lvi(state, 3); | ||
2398 | } | ||
2399 | } else { | ||
2400 | if (dmabuf->mapped && (dmabuf->trigger & PCM_ENABLE_OUTPUT)) { | ||
2401 | dmabuf->count += val; | ||
2402 | dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize; | ||
2403 | __ali_update_lvi(state, 0); | ||
2404 | } | ||
2405 | } | ||
2406 | } | ||
2407 | spin_unlock_irqrestore(&state->card->lock, flags); | ||
2408 | #if defined(DEBUG) || defined(DEBUG_MMAP) | ||
2409 | printk("SNDCTL_DSP_GETOPTR %d, %d, %d, %d\n", cinfo.bytes, | ||
2410 | cinfo.blocks, cinfo.ptr, dmabuf->count); | ||
2411 | #endif | ||
2412 | return copy_to_user(argp, &cinfo, sizeof(cinfo))? -EFAULT : 0; | ||
2413 | case SNDCTL_DSP_GETISPACE: | ||
2414 | if (!(file->f_mode & FMODE_READ)) | ||
2415 | return -EINVAL; | ||
2416 | if (!dmabuf->ready && (val = prog_dmabuf(state, 1)) != 0) | ||
2417 | return val; | ||
2418 | spin_lock_irqsave(&state->card->lock, flags); | ||
2419 | abinfo.bytes = ali_get_available_read_data(state); | ||
2420 | abinfo.fragsize = dmabuf->userfragsize; | ||
2421 | abinfo.fragstotal = dmabuf->userfrags; | ||
2422 | abinfo.fragments = abinfo.bytes / dmabuf->userfragsize; | ||
2423 | spin_unlock_irqrestore(&state->card->lock, flags); | ||
2424 | #if defined(DEBUG) || defined(DEBUG_MMAP) | ||
2425 | printk("SNDCTL_DSP_GETISPACE %d, %d, %d, %d\n", | ||
2426 | abinfo.bytes, abinfo.fragsize, abinfo.fragments, | ||
2427 | abinfo.fragstotal); | ||
2428 | #endif | ||
2429 | return copy_to_user(argp, &abinfo, | ||
2430 | sizeof(abinfo)) ? -EFAULT : 0; | ||
2431 | case SNDCTL_DSP_GETIPTR: | ||
2432 | if (!(file->f_mode & FMODE_READ)) | ||
2433 | return -EINVAL; | ||
2434 | if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0) | ||
2435 | return val; | ||
2436 | spin_lock_irqsave(&state->card->lock, flags); | ||
2437 | val = ali_get_available_read_data(state); | ||
2438 | cinfo.bytes = dmabuf->total_bytes; | ||
2439 | cinfo.blocks = val / dmabuf->userfragsize; | ||
2440 | cinfo.ptr = dmabuf->hwptr; | ||
2441 | if (dmabuf->mapped && (dmabuf->trigger & PCM_ENABLE_INPUT)) { | ||
2442 | dmabuf->count -= val; | ||
2443 | dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize; | ||
2444 | __ali_update_lvi(state, 1); | ||
2445 | } | ||
2446 | spin_unlock_irqrestore(&state->card->lock, flags); | ||
2447 | #if defined(DEBUG) || defined(DEBUG_MMAP) | ||
2448 | printk("SNDCTL_DSP_GETIPTR %d, %d, %d, %d\n", cinfo.bytes, | ||
2449 | cinfo.blocks, cinfo.ptr, dmabuf->count); | ||
2450 | #endif | ||
2451 | return copy_to_user(argp, &cinfo, sizeof(cinfo))? -EFAULT: 0; | ||
2452 | case SNDCTL_DSP_NONBLOCK: | ||
2453 | #ifdef DEBUG | ||
2454 | printk("SNDCTL_DSP_NONBLOCK\n"); | ||
2455 | #endif | ||
2456 | file->f_flags |= O_NONBLOCK; | ||
2457 | return 0; | ||
2458 | case SNDCTL_DSP_GETCAPS: | ||
2459 | #ifdef DEBUG | ||
2460 | printk("SNDCTL_DSP_GETCAPS\n"); | ||
2461 | #endif | ||
2462 | return put_user(DSP_CAP_REALTIME | DSP_CAP_TRIGGER | | ||
2463 | DSP_CAP_MMAP | DSP_CAP_BIND, p); | ||
2464 | case SNDCTL_DSP_GETTRIGGER: | ||
2465 | val = 0; | ||
2466 | #ifdef DEBUG | ||
2467 | printk("SNDCTL_DSP_GETTRIGGER 0x%x\n", dmabuf->trigger); | ||
2468 | #endif | ||
2469 | return put_user(dmabuf->trigger, p); | ||
2470 | case SNDCTL_DSP_SETTRIGGER: | ||
2471 | if (get_user(val, p)) | ||
2472 | return -EFAULT; | ||
2473 | #if defined(DEBUG) || defined(DEBUG_MMAP) | ||
2474 | printk("SNDCTL_DSP_SETTRIGGER 0x%x\n", val); | ||
2475 | #endif | ||
2476 | if (!(val & PCM_ENABLE_INPUT) && dmabuf->enable == ADC_RUNNING) { | ||
2477 | stop_adc(state); | ||
2478 | } | ||
2479 | if (!(val & PCM_ENABLE_OUTPUT) && dmabuf->enable == DAC_RUNNING) { | ||
2480 | stop_dac(state); | ||
2481 | } | ||
2482 | if (!(val & SPDIF_ENABLE_OUTPUT) && dmabuf->enable == CODEC_SPDIFOUT_RUNNING) { | ||
2483 | stop_spdifout(state); | ||
2484 | } | ||
2485 | if (!(val & SPDIF_ENABLE_OUTPUT) && dmabuf->enable == CONTROLLER_SPDIFOUT_RUNNING) { | ||
2486 | stop_spdifout(state); | ||
2487 | } | ||
2488 | dmabuf->trigger = val; | ||
2489 | if (val & PCM_ENABLE_OUTPUT && !(dmabuf->enable & DAC_RUNNING)) { | ||
2490 | if (!dmabuf->write_channel) { | ||
2491 | dmabuf->ready = 0; | ||
2492 | dmabuf->write_channel = state->card->alloc_pcm_channel(state->card); | ||
2493 | if (!dmabuf->write_channel) | ||
2494 | return -EBUSY; | ||
2495 | } | ||
2496 | if (!dmabuf->ready && (ret = prog_dmabuf(state, 0))) | ||
2497 | return ret; | ||
2498 | if (dmabuf->mapped) { | ||
2499 | spin_lock_irqsave(&state->card->lock, flags); | ||
2500 | ali_update_ptr(state); | ||
2501 | dmabuf->count = 0; | ||
2502 | dmabuf->swptr = dmabuf->hwptr; | ||
2503 | dmabuf->count = ali_get_free_write_space(state); | ||
2504 | dmabuf->swptr = (dmabuf->swptr + dmabuf->count) % dmabuf->dmasize; | ||
2505 | __ali_update_lvi(state, 0); | ||
2506 | spin_unlock_irqrestore(&state->card->lock, | ||
2507 | flags); | ||
2508 | } else | ||
2509 | start_dac(state); | ||
2510 | } | ||
2511 | if (val & SPDIF_ENABLE_OUTPUT && !(dmabuf->enable & CODEC_SPDIFOUT_RUNNING)) { | ||
2512 | if (!dmabuf->codec_spdifout_channel) { | ||
2513 | dmabuf->ready = 0; | ||
2514 | dmabuf->codec_spdifout_channel = state->card->alloc_codec_spdifout_channel(state->card); | ||
2515 | if (!dmabuf->codec_spdifout_channel) | ||
2516 | return -EBUSY; | ||
2517 | } | ||
2518 | if (!dmabuf->ready && (ret = prog_dmabuf(state, 2))) | ||
2519 | return ret; | ||
2520 | if (dmabuf->mapped) { | ||
2521 | spin_lock_irqsave(&state->card->lock, flags); | ||
2522 | ali_update_ptr(state); | ||
2523 | dmabuf->count = 0; | ||
2524 | dmabuf->swptr = dmabuf->hwptr; | ||
2525 | dmabuf->count = ali_get_free_write_space(state); | ||
2526 | dmabuf->swptr = (dmabuf->swptr + dmabuf->count) % dmabuf->dmasize; | ||
2527 | __ali_update_lvi(state, 2); | ||
2528 | spin_unlock_irqrestore(&state->card->lock, | ||
2529 | flags); | ||
2530 | } else | ||
2531 | start_spdifout(state); | ||
2532 | } | ||
2533 | if (val & SPDIF_ENABLE_OUTPUT && !(dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)) { | ||
2534 | if (!dmabuf->controller_spdifout_channel) { | ||
2535 | dmabuf->ready = 0; | ||
2536 | dmabuf->controller_spdifout_channel = state->card->alloc_controller_spdifout_channel(state->card); | ||
2537 | if (!dmabuf->controller_spdifout_channel) | ||
2538 | return -EBUSY; | ||
2539 | } | ||
2540 | if (!dmabuf->ready && (ret = prog_dmabuf(state, 3))) | ||
2541 | return ret; | ||
2542 | if (dmabuf->mapped) { | ||
2543 | spin_lock_irqsave(&state->card->lock, flags); | ||
2544 | ali_update_ptr(state); | ||
2545 | dmabuf->count = 0; | ||
2546 | dmabuf->swptr = dmabuf->hwptr; | ||
2547 | dmabuf->count = ali_get_free_write_space(state); | ||
2548 | dmabuf->swptr = (dmabuf->swptr + dmabuf->count) % dmabuf->dmasize; | ||
2549 | __ali_update_lvi(state, 3); | ||
2550 | spin_unlock_irqrestore(&state->card->lock, flags); | ||
2551 | } else | ||
2552 | start_spdifout(state); | ||
2553 | } | ||
2554 | if (val & PCM_ENABLE_INPUT && !(dmabuf->enable & ADC_RUNNING)) { | ||
2555 | if (!dmabuf->read_channel) { | ||
2556 | dmabuf->ready = 0; | ||
2557 | dmabuf->read_channel = state->card->alloc_rec_pcm_channel(state->card); | ||
2558 | if (!dmabuf->read_channel) | ||
2559 | return -EBUSY; | ||
2560 | } | ||
2561 | if (!dmabuf->ready && (ret = prog_dmabuf(state, 1))) | ||
2562 | return ret; | ||
2563 | if (dmabuf->mapped) { | ||
2564 | spin_lock_irqsave(&state->card->lock, | ||
2565 | flags); | ||
2566 | ali_update_ptr(state); | ||
2567 | dmabuf->swptr = dmabuf->hwptr; | ||
2568 | dmabuf->count = 0; | ||
2569 | spin_unlock_irqrestore(&state->card->lock, flags); | ||
2570 | } | ||
2571 | ali_update_lvi(state, 1); | ||
2572 | start_adc(state); | ||
2573 | } | ||
2574 | return 0; | ||
2575 | case SNDCTL_DSP_SETDUPLEX: | ||
2576 | #ifdef DEBUG | ||
2577 | printk("SNDCTL_DSP_SETDUPLEX\n"); | ||
2578 | #endif | ||
2579 | return -EINVAL; | ||
2580 | case SNDCTL_DSP_GETODELAY: | ||
2581 | if (!(file->f_mode & FMODE_WRITE)) | ||
2582 | return -EINVAL; | ||
2583 | spin_lock_irqsave(&state->card->lock, flags); | ||
2584 | ali_update_ptr(state); | ||
2585 | val = dmabuf->count; | ||
2586 | spin_unlock_irqrestore(&state->card->lock, flags); | ||
2587 | #ifdef DEBUG | ||
2588 | printk("SNDCTL_DSP_GETODELAY %d\n", dmabuf->count); | ||
2589 | #endif | ||
2590 | return put_user(val, p); | ||
2591 | case SOUND_PCM_READ_RATE: | ||
2592 | #ifdef DEBUG | ||
2593 | printk("SOUND_PCM_READ_RATE %d\n", dmabuf->rate); | ||
2594 | #endif | ||
2595 | return put_user(dmabuf->rate, p); | ||
2596 | case SOUND_PCM_READ_CHANNELS: | ||
2597 | #ifdef DEBUG | ||
2598 | printk("SOUND_PCM_READ_CHANNELS\n"); | ||
2599 | #endif | ||
2600 | return put_user(2, p); | ||
2601 | case SOUND_PCM_READ_BITS: | ||
2602 | #ifdef DEBUG | ||
2603 | printk("SOUND_PCM_READ_BITS\n"); | ||
2604 | #endif | ||
2605 | return put_user(AFMT_S16_LE, p); | ||
2606 | case SNDCTL_DSP_SETSPDIF: /* Set S/PDIF Control register */ | ||
2607 | #ifdef DEBUG | ||
2608 | printk("SNDCTL_DSP_SETSPDIF\n"); | ||
2609 | #endif | ||
2610 | if (get_user(val, p)) | ||
2611 | return -EFAULT; | ||
2612 | /* Check to make sure the codec supports S/PDIF transmitter */ | ||
2613 | if ((state->card->ac97_features & 4)) { | ||
2614 | /* mask out the transmitter speed bits so the user can't set them */ | ||
2615 | val &= ~0x3000; | ||
2616 | /* Add the current transmitter speed bits to the passed value */ | ||
2617 | ret = ali_ac97_get(codec, AC97_SPDIF_CONTROL); | ||
2618 | val |= (ret & 0x3000); | ||
2619 | ali_ac97_set(codec, AC97_SPDIF_CONTROL, val); | ||
2620 | if (ali_ac97_get(codec, AC97_SPDIF_CONTROL) != val) { | ||
2621 | printk(KERN_ERR "ali_audio: Unable to set S/PDIF configuration to 0x%04x.\n", val); | ||
2622 | return -EFAULT; | ||
2623 | } | ||
2624 | } | ||
2625 | #ifdef DEBUG | ||
2626 | else | ||
2627 | printk(KERN_WARNING "ali_audio: S/PDIF transmitter not avalible.\n"); | ||
2628 | #endif | ||
2629 | return put_user(val, p); | ||
2630 | case SNDCTL_DSP_GETSPDIF: /* Get S/PDIF Control register */ | ||
2631 | #ifdef DEBUG | ||
2632 | printk("SNDCTL_DSP_GETSPDIF\n"); | ||
2633 | #endif | ||
2634 | if (get_user(val, p)) | ||
2635 | return -EFAULT; | ||
2636 | /* Check to make sure the codec supports S/PDIF transmitter */ | ||
2637 | if (!(state->card->ac97_features & 4)) { | ||
2638 | #ifdef DEBUG | ||
2639 | printk(KERN_WARNING "ali_audio: S/PDIF transmitter not avalible.\n"); | ||
2640 | #endif | ||
2641 | val = 0; | ||
2642 | } else { | ||
2643 | val = ali_ac97_get(codec, AC97_SPDIF_CONTROL); | ||
2644 | } | ||
2645 | |||
2646 | return put_user(val, p); | ||
2647 | //end add support spdif out | ||
2648 | //add support 4,6 channel | ||
2649 | case SNDCTL_DSP_GETCHANNELMASK: | ||
2650 | #ifdef DEBUG | ||
2651 | printk("SNDCTL_DSP_GETCHANNELMASK\n"); | ||
2652 | #endif | ||
2653 | if (get_user(val, p)) | ||
2654 | return -EFAULT; | ||
2655 | /* Based on AC'97 DAC support, not ICH hardware */ | ||
2656 | val = DSP_BIND_FRONT; | ||
2657 | if (state->card->ac97_features & 0x0004) | ||
2658 | val |= DSP_BIND_SPDIF; | ||
2659 | if (state->card->ac97_features & 0x0080) | ||
2660 | val |= DSP_BIND_SURR; | ||
2661 | if (state->card->ac97_features & 0x0140) | ||
2662 | val |= DSP_BIND_CENTER_LFE; | ||
2663 | return put_user(val, p); | ||
2664 | case SNDCTL_DSP_BIND_CHANNEL: | ||
2665 | #ifdef DEBUG | ||
2666 | printk("SNDCTL_DSP_BIND_CHANNEL\n"); | ||
2667 | #endif | ||
2668 | if (get_user(val, p)) | ||
2669 | return -EFAULT; | ||
2670 | if (val == DSP_BIND_QUERY) { | ||
2671 | val = DSP_BIND_FRONT; /* Always report this as being enabled */ | ||
2672 | if (state->card->ac97_status & SPDIF_ON) | ||
2673 | val |= DSP_BIND_SPDIF; | ||
2674 | else { | ||
2675 | if (state->card->ac97_status & SURR_ON) | ||
2676 | val |= DSP_BIND_SURR; | ||
2677 | if (state->card-> | ||
2678 | ac97_status & CENTER_LFE_ON) | ||
2679 | val |= DSP_BIND_CENTER_LFE; | ||
2680 | } | ||
2681 | } else { /* Not a query, set it */ | ||
2682 | if (!(file->f_mode & FMODE_WRITE)) | ||
2683 | return -EINVAL; | ||
2684 | if (dmabuf->enable == DAC_RUNNING) { | ||
2685 | stop_dac(state); | ||
2686 | } | ||
2687 | if (val & DSP_BIND_SPDIF) { /* Turn on SPDIF */ | ||
2688 | /* Ok, this should probably define what slots | ||
2689 | * to use. For now, we'll only set it to the | ||
2690 | * defaults: | ||
2691 | * | ||
2692 | * non multichannel codec maps to slots 3&4 | ||
2693 | * 2 channel codec maps to slots 7&8 | ||
2694 | * 4 channel codec maps to slots 6&9 | ||
2695 | * 6 channel codec maps to slots 10&11 | ||
2696 | * | ||
2697 | * there should be some way for the app to | ||
2698 | * select the slot assignment. | ||
2699 | */ | ||
2700 | i_scr = inl(state->card->iobase + ALI_SCR); | ||
2701 | if (codec_independent_spdif_locked > 0) { | ||
2702 | |||
2703 | if ((i_scr & 0x00300000) == 0x00100000) { | ||
2704 | ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked); | ||
2705 | } else { | ||
2706 | if ((i_scr & 0x00300000) == 0x00200000) { | ||
2707 | ali_set_spdif_output(state, AC97_EA_SPSA_6_9, codec_independent_spdif_locked); | ||
2708 | } else { | ||
2709 | if ((i_scr & 0x00300000) == 0x00300000) { | ||
2710 | ali_set_spdif_output(state, AC97_EA_SPSA_10_11, codec_independent_spdif_locked); | ||
2711 | } | ||
2712 | } | ||
2713 | } | ||
2714 | } else { /* codec spdif out (pcm out share ) */ | ||
2715 | ali_set_spdif_output(state, AC97_EA_SPSA_3_4, dmabuf->rate); //I do not modify | ||
2716 | } | ||
2717 | |||
2718 | if (!(state->card->ac97_status & SPDIF_ON)) | ||
2719 | val &= ~DSP_BIND_SPDIF; | ||
2720 | } else { | ||
2721 | int mask; | ||
2722 | int channels; | ||
2723 | /* Turn off S/PDIF if it was on */ | ||
2724 | if (state->card->ac97_status & SPDIF_ON) | ||
2725 | ali_set_spdif_output(state, -1, 0); | ||
2726 | mask = | ||
2727 | val & (DSP_BIND_FRONT | DSP_BIND_SURR | | ||
2728 | DSP_BIND_CENTER_LFE); | ||
2729 | switch (mask) { | ||
2730 | case DSP_BIND_FRONT: | ||
2731 | channels = 2; | ||
2732 | break; | ||
2733 | case DSP_BIND_FRONT | DSP_BIND_SURR: | ||
2734 | channels = 4; | ||
2735 | break; | ||
2736 | case DSP_BIND_FRONT | DSP_BIND_SURR | DSP_BIND_CENTER_LFE: | ||
2737 | channels = 6; | ||
2738 | break; | ||
2739 | default: | ||
2740 | val = DSP_BIND_FRONT; | ||
2741 | channels = 2; | ||
2742 | break; | ||
2743 | } | ||
2744 | ali_set_dac_channels(state, channels); | ||
2745 | /* check that they really got turned on */ | ||
2746 | if (!state->card->ac97_status & SURR_ON) | ||
2747 | val &= ~DSP_BIND_SURR; | ||
2748 | if (!state->card-> | ||
2749 | ac97_status & CENTER_LFE_ON) | ||
2750 | val &= ~DSP_BIND_CENTER_LFE; | ||
2751 | } | ||
2752 | } | ||
2753 | return put_user(val, p); | ||
2754 | case SNDCTL_DSP_MAPINBUF: | ||
2755 | case SNDCTL_DSP_MAPOUTBUF: | ||
2756 | case SNDCTL_DSP_SETSYNCRO: | ||
2757 | case SOUND_PCM_WRITE_FILTER: | ||
2758 | case SOUND_PCM_READ_FILTER: | ||
2759 | return -EINVAL; | ||
2760 | } | ||
2761 | return -EINVAL; | ||
2762 | } | ||
2763 | |||
2764 | static int ali_open(struct inode *inode, struct file *file) | ||
2765 | { | ||
2766 | int i = 0; | ||
2767 | struct ali_card *card = devs; | ||
2768 | struct ali_state *state = NULL; | ||
2769 | struct dmabuf *dmabuf = NULL; | ||
2770 | unsigned int i_scr; | ||
2771 | |||
2772 | /* find an available virtual channel (instance of /dev/dsp) */ | ||
2773 | |||
2774 | while (card != NULL) { | ||
2775 | |||
2776 | /* | ||
2777 | * If we are initializing and then fail, card could go | ||
2778 | * away unuexpectedly while we are in the for() loop. | ||
2779 | * So, check for card on each iteration before we check | ||
2780 | * for card->initializing to avoid a possible oops. | ||
2781 | * This usually only matters for times when the driver is | ||
2782 | * autoloaded by kmod. | ||
2783 | */ | ||
2784 | for (i = 0; i < 50 && card && card->initializing; i++) { | ||
2785 | set_current_state(TASK_UNINTERRUPTIBLE); | ||
2786 | schedule_timeout(HZ / 20); | ||
2787 | } | ||
2788 | |||
2789 | for (i = 0; i < NR_HW_CH && card && !card->initializing; i++) { | ||
2790 | if (card->states[i] == NULL) { | ||
2791 | state = card->states[i] = (struct ali_state *) kmalloc(sizeof(struct ali_state), GFP_KERNEL); | ||
2792 | if (state == NULL) | ||
2793 | return -ENOMEM; | ||
2794 | memset(state, 0, sizeof(struct ali_state)); | ||
2795 | dmabuf = &state->dmabuf; | ||
2796 | goto found_virt; | ||
2797 | } | ||
2798 | } | ||
2799 | card = card->next; | ||
2800 | } | ||
2801 | |||
2802 | /* no more virtual channel avaiable */ | ||
2803 | if (!state) | ||
2804 | return -ENODEV; | ||
2805 | found_virt: | ||
2806 | /* initialize the virtual channel */ | ||
2807 | |||
2808 | state->virt = i; | ||
2809 | state->card = card; | ||
2810 | state->magic = ALI5455_STATE_MAGIC; | ||
2811 | init_waitqueue_head(&dmabuf->wait); | ||
2812 | mutex_init(&state->open_mutex); | ||
2813 | file->private_data = state; | ||
2814 | dmabuf->trigger = 0; | ||
2815 | /* allocate hardware channels */ | ||
2816 | if (file->f_mode & FMODE_READ) { | ||
2817 | if ((dmabuf->read_channel = | ||
2818 | card->alloc_rec_pcm_channel(card)) == NULL) { | ||
2819 | kfree(card->states[i]); | ||
2820 | card->states[i] = NULL; | ||
2821 | return -EBUSY; | ||
2822 | } | ||
2823 | dmabuf->trigger |= PCM_ENABLE_INPUT; | ||
2824 | ali_set_adc_rate(state, 8000); | ||
2825 | } | ||
2826 | if (file->f_mode & FMODE_WRITE) { | ||
2827 | if (codec_independent_spdif_locked > 0) { | ||
2828 | if ((dmabuf->codec_spdifout_channel = card->alloc_codec_spdifout_channel(card)) == NULL) { | ||
2829 | kfree(card->states[i]); | ||
2830 | card->states[i] = NULL; | ||
2831 | return -EBUSY; | ||
2832 | } | ||
2833 | dmabuf->trigger |= SPDIF_ENABLE_OUTPUT; | ||
2834 | ali_set_codecspdifout_rate(state, codec_independent_spdif_locked); //It must add | ||
2835 | i_scr = inl(state->card->iobase + ALI_SCR); | ||
2836 | if ((i_scr & 0x00300000) == 0x00100000) { | ||
2837 | ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked); | ||
2838 | } else { | ||
2839 | if ((i_scr & 0x00300000) == 0x00200000) { | ||
2840 | ali_set_spdif_output(state, AC97_EA_SPSA_6_9, codec_independent_spdif_locked); | ||
2841 | } else { | ||
2842 | if ((i_scr & 0x00300000) == 0x00300000) { | ||
2843 | ali_set_spdif_output(state, AC97_EA_SPSA_10_11, codec_independent_spdif_locked); | ||
2844 | } else { | ||
2845 | ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked); | ||
2846 | } | ||
2847 | } | ||
2848 | |||
2849 | } | ||
2850 | } else { | ||
2851 | if (controller_independent_spdif_locked > 0) { | ||
2852 | if ((dmabuf->controller_spdifout_channel = card->alloc_controller_spdifout_channel(card)) == NULL) { | ||
2853 | kfree(card->states[i]); | ||
2854 | card->states[i] = NULL; | ||
2855 | return -EBUSY; | ||
2856 | } | ||
2857 | dmabuf->trigger |= SPDIF_ENABLE_OUTPUT; | ||
2858 | ali_set_spdifout_rate(state, controller_independent_spdif_locked); | ||
2859 | } else { | ||
2860 | if ((dmabuf->write_channel = card->alloc_pcm_channel(card)) == NULL) { | ||
2861 | kfree(card->states[i]); | ||
2862 | card->states[i] = NULL; | ||
2863 | return -EBUSY; | ||
2864 | } | ||
2865 | /* Initialize to 8kHz? What if we don't support 8kHz? */ | ||
2866 | /* Let's change this to check for S/PDIF stuff */ | ||
2867 | |||
2868 | dmabuf->trigger |= PCM_ENABLE_OUTPUT; | ||
2869 | if (codec_pcmout_share_spdif_locked) { | ||
2870 | ali_set_dac_rate(state, codec_pcmout_share_spdif_locked); | ||
2871 | ali_set_spdif_output(state, AC97_EA_SPSA_3_4, codec_pcmout_share_spdif_locked); | ||
2872 | } else { | ||
2873 | ali_set_dac_rate(state, 8000); | ||
2874 | } | ||
2875 | } | ||
2876 | |||
2877 | } | ||
2878 | } | ||
2879 | |||
2880 | /* set default sample format. According to OSS Programmer's Guide /dev/dsp | ||
2881 | should be default to unsigned 8-bits, mono, with sample rate 8kHz and | ||
2882 | /dev/dspW will accept 16-bits sample, but we don't support those so we | ||
2883 | set it immediately to stereo and 16bit, which is all we do support */ | ||
2884 | dmabuf->fmt |= ALI5455_FMT_16BIT | ALI5455_FMT_STEREO; | ||
2885 | dmabuf->ossfragsize = 0; | ||
2886 | dmabuf->ossmaxfrags = 0; | ||
2887 | dmabuf->subdivision = 0; | ||
2888 | state->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE); | ||
2889 | outl(0x00000000, card->iobase + ALI_INTERRUPTCR); | ||
2890 | outl(0x00000000, card->iobase + ALI_INTERRUPTSR); | ||
2891 | return nonseekable_open(inode, file); | ||
2892 | } | ||
2893 | |||
2894 | static int ali_release(struct inode *inode, struct file *file) | ||
2895 | { | ||
2896 | struct ali_state *state = (struct ali_state *) file->private_data; | ||
2897 | struct ali_card *card = state->card; | ||
2898 | struct dmabuf *dmabuf = &state->dmabuf; | ||
2899 | unsigned long flags; | ||
2900 | lock_kernel(); | ||
2901 | |||
2902 | /* stop DMA state machine and free DMA buffers/channels */ | ||
2903 | if (dmabuf->trigger & PCM_ENABLE_OUTPUT) | ||
2904 | drain_dac(state, 0); | ||
2905 | |||
2906 | if (dmabuf->trigger & SPDIF_ENABLE_OUTPUT) | ||
2907 | drain_spdifout(state, 0); | ||
2908 | |||
2909 | if (dmabuf->trigger & PCM_ENABLE_INPUT) | ||
2910 | stop_adc(state); | ||
2911 | |||
2912 | spin_lock_irqsave(&card->lock, flags); | ||
2913 | dealloc_dmabuf(state); | ||
2914 | if (file->f_mode & FMODE_WRITE) { | ||
2915 | if (codec_independent_spdif_locked > 0) { | ||
2916 | state->card->free_pcm_channel(state->card, dmabuf->codec_spdifout_channel->num); | ||
2917 | } else { | ||
2918 | if (controller_independent_spdif_locked > 0) | ||
2919 | state->card->free_pcm_channel(state->card, | ||
2920 | dmabuf->controller_spdifout_channel->num); | ||
2921 | else state->card->free_pcm_channel(state->card, | ||
2922 | dmabuf->write_channel->num); | ||
2923 | } | ||
2924 | } | ||
2925 | if (file->f_mode & FMODE_READ) | ||
2926 | state->card->free_pcm_channel(state->card, dmabuf->read_channel->num); | ||
2927 | |||
2928 | state->card->states[state->virt] = NULL; | ||
2929 | kfree(state); | ||
2930 | spin_unlock_irqrestore(&card->lock, flags); | ||
2931 | unlock_kernel(); | ||
2932 | return 0; | ||
2933 | } | ||
2934 | |||
2935 | static /*const */ struct file_operations ali_audio_fops = { | ||
2936 | .owner = THIS_MODULE, | ||
2937 | .llseek = no_llseek, | ||
2938 | .read = ali_read, | ||
2939 | .write = ali_write, | ||
2940 | .poll = ali_poll, | ||
2941 | .ioctl = ali_ioctl, | ||
2942 | .mmap = ali_mmap, | ||
2943 | .open = ali_open, | ||
2944 | .release = ali_release, | ||
2945 | }; | ||
2946 | |||
2947 | /* Read AC97 codec registers */ | ||
2948 | static u16 ali_ac97_get(struct ac97_codec *dev, u8 reg) | ||
2949 | { | ||
2950 | struct ali_card *card = dev->private_data; | ||
2951 | int count1 = 100; | ||
2952 | char val; | ||
2953 | unsigned short int data = 0, count, addr1, addr2 = 0; | ||
2954 | |||
2955 | spin_lock(&card->ac97_lock); | ||
2956 | while (count1-- && (inl(card->iobase + ALI_CAS) & 0x80000000)) | ||
2957 | udelay(1); | ||
2958 | |||
2959 | addr1 = reg; | ||
2960 | reg |= 0x0080; | ||
2961 | for (count = 0; count < 0x7f; count++) { | ||
2962 | val = inb(card->iobase + ALI_CSPSR); | ||
2963 | if (val & 0x08) | ||
2964 | break; | ||
2965 | } | ||
2966 | if (count == 0x7f) | ||
2967 | { | ||
2968 | spin_unlock(&card->ac97_lock); | ||
2969 | return -1; | ||
2970 | } | ||
2971 | outw(reg, (card->iobase + ALI_CPR) + 2); | ||
2972 | for (count = 0; count < 0x7f; count++) { | ||
2973 | val = inb(card->iobase + ALI_CSPSR); | ||
2974 | if (val & 0x02) { | ||
2975 | data = inw(card->iobase + ALI_SPR); | ||
2976 | addr2 = inw((card->iobase + ALI_SPR) + 2); | ||
2977 | break; | ||
2978 | } | ||
2979 | } | ||
2980 | spin_unlock(&card->ac97_lock); | ||
2981 | if (count == 0x7f) | ||
2982 | return -1; | ||
2983 | if (addr2 != addr1) | ||
2984 | return -1; | ||
2985 | return ((u16) data); | ||
2986 | } | ||
2987 | |||
2988 | /* write ac97 codec register */ | ||
2989 | |||
2990 | static void ali_ac97_set(struct ac97_codec *dev, u8 reg, u16 data) | ||
2991 | { | ||
2992 | struct ali_card *card = dev->private_data; | ||
2993 | int count1 = 100; | ||
2994 | char val; | ||
2995 | unsigned short int count; | ||
2996 | |||
2997 | spin_lock(&card->ac97_lock); | ||
2998 | while (count1-- && (inl(card->iobase + ALI_CAS) & 0x80000000)) | ||
2999 | udelay(1); | ||
3000 | |||
3001 | for (count = 0; count < 0x7f; count++) { | ||
3002 | val = inb(card->iobase + ALI_CSPSR); | ||
3003 | if (val & 0x08) | ||
3004 | break; | ||
3005 | } | ||
3006 | if (count == 0x7f) { | ||
3007 | printk(KERN_WARNING "ali_ac97_set: AC97 codec register access timed out. \n"); | ||
3008 | spin_unlock(&card->ac97_lock); | ||
3009 | return; | ||
3010 | } | ||
3011 | outw(data, (card->iobase + ALI_CPR)); | ||
3012 | outb(reg, (card->iobase + ALI_CPR) + 2); | ||
3013 | for (count = 0; count < 0x7f; count++) { | ||
3014 | val = inb(card->iobase + ALI_CSPSR); | ||
3015 | if (val & 0x01) | ||
3016 | break; | ||
3017 | } | ||
3018 | spin_unlock(&card->ac97_lock); | ||
3019 | if (count == 0x7f) | ||
3020 | printk(KERN_WARNING "ali_ac97_set: AC97 codec register access timed out. \n"); | ||
3021 | return; | ||
3022 | } | ||
3023 | |||
3024 | /* OSS /dev/mixer file operation methods */ | ||
3025 | |||
3026 | static int ali_open_mixdev(struct inode *inode, struct file *file) | ||
3027 | { | ||
3028 | int i; | ||
3029 | int minor = iminor(inode); | ||
3030 | struct ali_card *card = devs; | ||
3031 | for (card = devs; card != NULL; card = card->next) { | ||
3032 | /* | ||
3033 | * If we are initializing and then fail, card could go | ||
3034 | * away unuexpectedly while we are in the for() loop. | ||
3035 | * So, check for card on each iteration before we check | ||
3036 | * for card->initializing to avoid a possible oops. | ||
3037 | * This usually only matters for times when the driver is | ||
3038 | * autoloaded by kmod. | ||
3039 | */ | ||
3040 | for (i = 0; i < 50 && card && card->initializing; i++) { | ||
3041 | set_current_state(TASK_UNINTERRUPTIBLE); | ||
3042 | schedule_timeout(HZ / 20); | ||
3043 | } | ||
3044 | for (i = 0; i < NR_AC97 && card && !card->initializing; i++) | ||
3045 | if (card->ac97_codec[i] != NULL | ||
3046 | && card->ac97_codec[i]->dev_mixer == minor) { | ||
3047 | file->private_data = card->ac97_codec[i]; | ||
3048 | return nonseekable_open(inode, file); | ||
3049 | } | ||
3050 | } | ||
3051 | return -ENODEV; | ||
3052 | } | ||
3053 | |||
3054 | static int ali_ioctl_mixdev(struct inode *inode, | ||
3055 | struct file *file, | ||
3056 | unsigned int cmd, unsigned long arg) | ||
3057 | { | ||
3058 | struct ac97_codec *codec = (struct ac97_codec *) file->private_data; | ||
3059 | return codec->mixer_ioctl(codec, cmd, arg); | ||
3060 | } | ||
3061 | |||
3062 | static /*const */ struct file_operations ali_mixer_fops = { | ||
3063 | .owner = THIS_MODULE, | ||
3064 | .llseek = no_llseek, | ||
3065 | .ioctl = ali_ioctl_mixdev, | ||
3066 | .open = ali_open_mixdev, | ||
3067 | }; | ||
3068 | |||
3069 | /* AC97 codec initialisation. These small functions exist so we don't | ||
3070 | duplicate code between module init and apm resume */ | ||
3071 | |||
3072 | static inline int ali_ac97_exists(struct ali_card *card, int ac97_number) | ||
3073 | { | ||
3074 | unsigned int i = 1; | ||
3075 | u32 reg = inl(card->iobase + ALI_RTSR); | ||
3076 | if (ac97_number) { | ||
3077 | while (i < 100) { | ||
3078 | |||
3079 | reg = inl(card->iobase + ALI_RTSR); | ||
3080 | if (reg & 0x40) { | ||
3081 | break; | ||
3082 | } else { | ||
3083 | outl(reg | 0x00000040, | ||
3084 | card->iobase + 0x34); | ||
3085 | udelay(1); | ||
3086 | } | ||
3087 | i++; | ||
3088 | } | ||
3089 | |||
3090 | } else { | ||
3091 | while (i < 100) { | ||
3092 | reg = inl(card->iobase + ALI_RTSR); | ||
3093 | if (reg & 0x80) { | ||
3094 | break; | ||
3095 | } else { | ||
3096 | outl(reg | 0x00000080, | ||
3097 | card->iobase + 0x34); | ||
3098 | udelay(1); | ||
3099 | } | ||
3100 | i++; | ||
3101 | } | ||
3102 | } | ||
3103 | |||
3104 | if (ac97_number) | ||
3105 | return reg & 0x40; | ||
3106 | else | ||
3107 | return reg & 0x80; | ||
3108 | } | ||
3109 | |||
3110 | static inline int ali_ac97_enable_variable_rate(struct ac97_codec *codec) | ||
3111 | { | ||
3112 | ali_ac97_set(codec, AC97_EXTENDED_STATUS, 9); | ||
3113 | ali_ac97_set(codec, AC97_EXTENDED_STATUS, ali_ac97_get(codec, AC97_EXTENDED_STATUS) | 0xE800); | ||
3114 | return (ali_ac97_get(codec, AC97_EXTENDED_STATUS) & 1); | ||
3115 | } | ||
3116 | |||
3117 | |||
3118 | static int ali_ac97_probe_and_powerup(struct ali_card *card, struct ac97_codec *codec) | ||
3119 | { | ||
3120 | /* Returns 0 on failure */ | ||
3121 | int i; | ||
3122 | u16 addr; | ||
3123 | if (ac97_probe_codec(codec) == 0) | ||
3124 | return 0; | ||
3125 | /* ac97_probe_codec is success ,then begin to init codec */ | ||
3126 | ali_ac97_set(codec, AC97_RESET, 0xffff); | ||
3127 | if (card->channel[0].used == 1) { | ||
3128 | ali_ac97_set(codec, AC97_RECORD_SELECT, 0x0000); | ||
3129 | ali_ac97_set(codec, AC97_LINEIN_VOL, 0x0808); | ||
3130 | ali_ac97_set(codec, AC97_RECORD_GAIN, 0x0F0F); | ||
3131 | } | ||
3132 | |||
3133 | if (card->channel[2].used == 1) //if MICin then init codec | ||
3134 | { | ||
3135 | ali_ac97_set(codec, AC97_RECORD_SELECT, 0x0000); | ||
3136 | ali_ac97_set(codec, AC97_MIC_VOL, 0x8808); | ||
3137 | ali_ac97_set(codec, AC97_RECORD_GAIN, 0x0F0F); | ||
3138 | ali_ac97_set(codec, AC97_RECORD_GAIN_MIC, 0x0000); | ||
3139 | } | ||
3140 | |||
3141 | ali_ac97_set(codec, AC97_MASTER_VOL_STEREO, 0x0000); | ||
3142 | ali_ac97_set(codec, AC97_HEADPHONE_VOL, 0x0000); | ||
3143 | ali_ac97_set(codec, AC97_PCMOUT_VOL, 0x0000); | ||
3144 | ali_ac97_set(codec, AC97_CD_VOL, 0x0808); | ||
3145 | ali_ac97_set(codec, AC97_VIDEO_VOL, 0x0808); | ||
3146 | ali_ac97_set(codec, AC97_AUX_VOL, 0x0808); | ||
3147 | ali_ac97_set(codec, AC97_PHONE_VOL, 0x8048); | ||
3148 | ali_ac97_set(codec, AC97_PCBEEP_VOL, 0x0000); | ||
3149 | ali_ac97_set(codec, AC97_GENERAL_PURPOSE, AC97_GP_MIX); | ||
3150 | ali_ac97_set(codec, AC97_MASTER_VOL_MONO, 0x0000); | ||
3151 | ali_ac97_set(codec, 0x38, 0x0000); | ||
3152 | addr = ali_ac97_get(codec, 0x2a); | ||
3153 | ali_ac97_set(codec, 0x2a, addr | 0x0001); | ||
3154 | addr = ali_ac97_get(codec, 0x2a); | ||
3155 | addr = ali_ac97_get(codec, 0x28); | ||
3156 | ali_ac97_set(codec, 0x2c, 0xbb80); | ||
3157 | addr = ali_ac97_get(codec, 0x2c); | ||
3158 | /* power it all up */ | ||
3159 | ali_ac97_set(codec, AC97_POWER_CONTROL, | ||
3160 | ali_ac97_get(codec, AC97_POWER_CONTROL) & ~0x7f00); | ||
3161 | /* wait for analog ready */ | ||
3162 | for (i = 10; i && ((ali_ac97_get(codec, AC97_POWER_CONTROL) & 0xf) != 0xf); i--) { | ||
3163 | set_current_state(TASK_UNINTERRUPTIBLE); | ||
3164 | schedule_timeout(HZ / 20); | ||
3165 | } | ||
3166 | /* FIXME !! */ | ||
3167 | i++; | ||
3168 | return i; | ||
3169 | } | ||
3170 | |||
3171 | |||
3172 | /* I clone ali5455(2.4.7 ) not clone i810_audio(2.4.18) */ | ||
3173 | |||
3174 | static int ali_reset_5455(struct ali_card *card) | ||
3175 | { | ||
3176 | outl(0x80000003, card->iobase + ALI_SCR); | ||
3177 | outl(0x83838383, card->iobase + ALI_FIFOCR1); | ||
3178 | outl(0x83838383, card->iobase + ALI_FIFOCR2); | ||
3179 | if (controller_pcmout_share_spdif_locked > 0) { | ||
3180 | outl((inl(card->iobase + ALI_SPDIFICS) | 0x00000001), | ||
3181 | card->iobase + ALI_SPDIFICS); | ||
3182 | outl(0x0408000a, card->iobase + ALI_INTERFACECR); | ||
3183 | } else { | ||
3184 | if (codec_independent_spdif_locked > 0) { | ||
3185 | outl((inl(card->iobase + ALI_SCR) | 0x00100000), card->iobase + ALI_SCR); // now I select slot 7 & 8 | ||
3186 | outl(0x00200000, card->iobase + ALI_INTERFACECR); //enable codec independent spdifout | ||
3187 | } else | ||
3188 | outl(0x04080002, card->iobase + ALI_INTERFACECR); | ||
3189 | } | ||
3190 | |||
3191 | outl(0x00000000, card->iobase + ALI_INTERRUPTCR); | ||
3192 | outl(0x00000000, card->iobase + ALI_INTERRUPTSR); | ||
3193 | if (controller_independent_spdif_locked > 0) | ||
3194 | outl((inl(card->iobase + ALI_SPDIFICS) | 0x00000001), | ||
3195 | card->iobase + ALI_SPDIFICS); | ||
3196 | return 1; | ||
3197 | } | ||
3198 | |||
3199 | |||
3200 | static int ali_ac97_random_init_stuff(struct ali_card | ||
3201 | *card) | ||
3202 | { | ||
3203 | u32 reg = inl(card->iobase + ALI_SCR); | ||
3204 | int i = 0; | ||
3205 | reg = inl(card->iobase + ALI_SCR); | ||
3206 | if ((reg & 2) == 0) /* Cold required */ | ||
3207 | reg |= 2; | ||
3208 | else | ||
3209 | reg |= 1; /* Warm */ | ||
3210 | reg &= ~0x80000000; /* ACLink on */ | ||
3211 | outl(reg, card->iobase + ALI_SCR); | ||
3212 | |||
3213 | while (i < 10) { | ||
3214 | if ((inl(card->iobase + 0x18) & (1 << 1)) == 0) | ||
3215 | break; | ||
3216 | current->state = TASK_UNINTERRUPTIBLE; | ||
3217 | schedule_timeout(HZ / 20); | ||
3218 | i++; | ||
3219 | } | ||
3220 | if (i == 10) { | ||
3221 | printk(KERN_ERR "ali_audio: AC'97 reset failed.\n"); | ||
3222 | return 0; | ||
3223 | } | ||
3224 | |||
3225 | set_current_state(TASK_UNINTERRUPTIBLE); | ||
3226 | schedule_timeout(HZ / 2); | ||
3227 | return 1; | ||
3228 | } | ||
3229 | |||
3230 | /* AC97 codec initialisation. */ | ||
3231 | |||
3232 | static int __devinit ali_ac97_init(struct ali_card *card) | ||
3233 | { | ||
3234 | int num_ac97 = 0; | ||
3235 | int total_channels = 0; | ||
3236 | struct ac97_codec *codec; | ||
3237 | u16 eid; | ||
3238 | |||
3239 | if (!ali_ac97_random_init_stuff(card)) | ||
3240 | return 0; | ||
3241 | |||
3242 | /* Number of channels supported */ | ||
3243 | /* What about the codec? Just because the ICH supports */ | ||
3244 | /* multiple channels doesn't mean the codec does. */ | ||
3245 | /* we'll have to modify this in the codec section below */ | ||
3246 | /* to reflect what the codec has. */ | ||
3247 | /* ICH and ICH0 only support 2 channels so don't bother */ | ||
3248 | /* to check.... */ | ||
3249 | inl(card->iobase + ALI_CPR); | ||
3250 | card->channels = 2; | ||
3251 | |||
3252 | for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) { | ||
3253 | |||
3254 | /* Assume codec isn't available until we go through the | ||
3255 | * gauntlet below */ | ||
3256 | card->ac97_codec[num_ac97] = NULL; | ||
3257 | /* The ICH programmer's reference says you should */ | ||
3258 | /* check the ready status before probing. So we chk */ | ||
3259 | /* What do we do if it's not ready? Wait and try */ | ||
3260 | /* again, or abort? */ | ||
3261 | if (!ali_ac97_exists(card, num_ac97)) { | ||
3262 | if (num_ac97 == 0) | ||
3263 | printk(KERN_ERR "ali_audio: Primary codec not ready.\n"); | ||
3264 | break; | ||
3265 | } | ||
3266 | |||
3267 | if ((codec = ac97_alloc_codec()) == NULL) | ||
3268 | return -ENOMEM; | ||
3269 | /* initialize some basic codec information, other fields will be filled | ||
3270 | in ac97_probe_codec */ | ||
3271 | codec->private_data = card; | ||
3272 | codec->id = num_ac97; | ||
3273 | codec->codec_read = ali_ac97_get; | ||
3274 | codec->codec_write = ali_ac97_set; | ||
3275 | if (!ali_ac97_probe_and_powerup(card, codec)) { | ||
3276 | printk(KERN_ERR "ali_audio: timed out waiting for codec %d analog ready", | ||
3277 | num_ac97); | ||
3278 | kfree(codec); | ||
3279 | break; /* it didn't work */ | ||
3280 | } | ||
3281 | |||
3282 | /* Store state information about S/PDIF transmitter */ | ||
3283 | card->ac97_status = 0; | ||
3284 | /* Don't attempt to get eid until powerup is complete */ | ||
3285 | eid = ali_ac97_get(codec, AC97_EXTENDED_ID); | ||
3286 | if (eid == 0xFFFF) { | ||
3287 | printk(KERN_ERR "ali_audio: no codec attached ?\n"); | ||
3288 | kfree(codec); | ||
3289 | break; | ||
3290 | } | ||
3291 | |||
3292 | card->ac97_features = eid; | ||
3293 | /* Now check the codec for useful features to make up for | ||
3294 | the dumbness of the ali5455 hardware engine */ | ||
3295 | if (!(eid & 0x0001)) | ||
3296 | printk(KERN_WARNING | ||
3297 | "ali_audio: only 48Khz playback available.\n"); | ||
3298 | else { | ||
3299 | if (!ali_ac97_enable_variable_rate(codec)) { | ||
3300 | printk(KERN_WARNING | ||
3301 | "ali_audio: Codec refused to allow VRA, using 48Khz only.\n"); | ||
3302 | card->ac97_features &= ~1; | ||
3303 | } | ||
3304 | } | ||
3305 | |||
3306 | /* Determine how many channels the codec(s) support */ | ||
3307 | /* - The primary codec always supports 2 */ | ||
3308 | /* - If the codec supports AMAP, surround DACs will */ | ||
3309 | /* automaticlly get assigned to slots. */ | ||
3310 | /* * Check for surround DACs and increment if */ | ||
3311 | /* found. */ | ||
3312 | /* - Else check if the codec is revision 2.2 */ | ||
3313 | /* * If surround DACs exist, assign them to slots */ | ||
3314 | /* and increment channel count. */ | ||
3315 | |||
3316 | /* All of this only applies to ICH2 and above. ICH */ | ||
3317 | /* and ICH0 only support 2 channels. ICH2 will only */ | ||
3318 | /* support multiple codecs in a "split audio" config. */ | ||
3319 | /* as described above. */ | ||
3320 | |||
3321 | /* TODO: Remove all the debugging messages! */ | ||
3322 | |||
3323 | if ((eid & 0xc000) == 0) /* primary codec */ | ||
3324 | total_channels += 2; | ||
3325 | if ((codec->dev_mixer = register_sound_mixer(&ali_mixer_fops, -1)) < 0) { | ||
3326 | printk(KERN_ERR "ali_audio: couldn't register mixer!\n"); | ||
3327 | kfree(codec); | ||
3328 | break; | ||
3329 | } | ||
3330 | card->ac97_codec[num_ac97] = codec; | ||
3331 | } | ||
3332 | /* pick the minimum of channels supported by ICHx or codec(s) */ | ||
3333 | card->channels = (card->channels > total_channels) ? total_channels : card->channels; | ||
3334 | return num_ac97; | ||
3335 | } | ||
3336 | |||
3337 | static void __devinit ali_configure_clocking(void) | ||
3338 | { | ||
3339 | struct ali_card *card; | ||
3340 | struct ali_state *state; | ||
3341 | struct dmabuf *dmabuf; | ||
3342 | unsigned int i, offset, new_offset; | ||
3343 | unsigned long flags; | ||
3344 | card = devs; | ||
3345 | |||
3346 | /* We could try to set the clocking for multiple cards, but can you even have | ||
3347 | * more than one ali in a machine? Besides, clocking is global, so unless | ||
3348 | * someone actually thinks more than one ali in a machine is possible and | ||
3349 | * decides to rewrite that little bit, setting the rate for more than one card | ||
3350 | * is a waste of time. | ||
3351 | */ | ||
3352 | if (card != NULL) { | ||
3353 | state = card->states[0] = (struct ali_state *) | ||
3354 | kmalloc(sizeof(struct ali_state), GFP_KERNEL); | ||
3355 | if (state == NULL) | ||
3356 | return; | ||
3357 | memset(state, 0, sizeof(struct ali_state)); | ||
3358 | dmabuf = &state->dmabuf; | ||
3359 | dmabuf->write_channel = card->alloc_pcm_channel(card); | ||
3360 | state->virt = 0; | ||
3361 | state->card = card; | ||
3362 | state->magic = ALI5455_STATE_MAGIC; | ||
3363 | init_waitqueue_head(&dmabuf->wait); | ||
3364 | mutex_init(&state->open_mutex); | ||
3365 | dmabuf->fmt = ALI5455_FMT_STEREO | ALI5455_FMT_16BIT; | ||
3366 | dmabuf->trigger = PCM_ENABLE_OUTPUT; | ||
3367 | ali_set_dac_rate(state, 48000); | ||
3368 | if (prog_dmabuf(state, 0) != 0) | ||
3369 | goto config_out_nodmabuf; | ||
3370 | |||
3371 | if (dmabuf->dmasize < 16384) | ||
3372 | goto config_out; | ||
3373 | |||
3374 | dmabuf->count = dmabuf->dmasize; | ||
3375 | outb(31, card->iobase + dmabuf->write_channel->port + OFF_LVI); | ||
3376 | |||
3377 | local_irq_save(flags); | ||
3378 | start_dac(state); | ||
3379 | offset = ali_get_dma_addr(state, 0); | ||
3380 | mdelay(50); | ||
3381 | new_offset = ali_get_dma_addr(state, 0); | ||
3382 | stop_dac(state); | ||
3383 | |||
3384 | outb(2, card->iobase + dmabuf->write_channel->port + OFF_CR); | ||
3385 | local_irq_restore(flags); | ||
3386 | |||
3387 | i = new_offset - offset; | ||
3388 | |||
3389 | if (i == 0) | ||
3390 | goto config_out; | ||
3391 | i = i / 4 * 20; | ||
3392 | if (i > 48500 || i < 47500) { | ||
3393 | clocking = clocking * clocking / i; | ||
3394 | } | ||
3395 | config_out: | ||
3396 | dealloc_dmabuf(state); | ||
3397 | config_out_nodmabuf: | ||
3398 | state->card->free_pcm_channel(state->card, state->dmabuf. write_channel->num); | ||
3399 | kfree(state); | ||
3400 | card->states[0] = NULL; | ||
3401 | } | ||
3402 | } | ||
3403 | |||
3404 | /* install the driver, we do not allocate hardware channel nor DMA buffer now, they are defered | ||
3405 | until "ACCESS" time (in prog_dmabuf called by open/read/write/ioctl/mmap) */ | ||
3406 | |||
3407 | static int __devinit ali_probe(struct pci_dev *pci_dev, | ||
3408 | const struct pci_device_id *pci_id) | ||
3409 | { | ||
3410 | struct ali_card *card; | ||
3411 | if (pci_enable_device(pci_dev)) | ||
3412 | return -EIO; | ||
3413 | if (pci_set_dma_mask(pci_dev, ALI5455_DMA_MASK)) { | ||
3414 | printk(KERN_ERR "ali5455: architecture does not support" | ||
3415 | " 32bit PCI busmaster DMA\n"); | ||
3416 | return -ENODEV; | ||
3417 | } | ||
3418 | |||
3419 | if ((card = kmalloc(sizeof(struct ali_card), GFP_KERNEL)) == NULL) { | ||
3420 | printk(KERN_ERR "ali_audio: out of memory\n"); | ||
3421 | return -ENOMEM; | ||
3422 | } | ||
3423 | memset(card, 0, sizeof(*card)); | ||
3424 | card->initializing = 1; | ||
3425 | card->iobase = pci_resource_start(pci_dev, 0); | ||
3426 | card->pci_dev = pci_dev; | ||
3427 | card->pci_id = pci_id->device; | ||
3428 | card->irq = pci_dev->irq; | ||
3429 | card->next = devs; | ||
3430 | card->magic = ALI5455_CARD_MAGIC; | ||
3431 | #ifdef CONFIG_PM | ||
3432 | card->pm_suspended = 0; | ||
3433 | #endif | ||
3434 | spin_lock_init(&card->lock); | ||
3435 | spin_lock_init(&card->ac97_lock); | ||
3436 | devs = card; | ||
3437 | pci_set_master(pci_dev); | ||
3438 | printk(KERN_INFO "ali: %s found at IO 0x%04lx, IRQ %d\n", | ||
3439 | card_names[pci_id->driver_data], card->iobase, card->irq); | ||
3440 | card->alloc_pcm_channel = ali_alloc_pcm_channel; | ||
3441 | card->alloc_rec_pcm_channel = ali_alloc_rec_pcm_channel; | ||
3442 | card->alloc_rec_mic_channel = ali_alloc_rec_mic_channel; | ||
3443 | card->alloc_codec_spdifout_channel = ali_alloc_codec_spdifout_channel; | ||
3444 | card->alloc_controller_spdifout_channel = ali_alloc_controller_spdifout_channel; | ||
3445 | card->free_pcm_channel = ali_free_pcm_channel; | ||
3446 | card->channel[0].offset = 0; | ||
3447 | card->channel[0].port = 0x40; | ||
3448 | card->channel[0].num = 0; | ||
3449 | card->channel[1].offset = 0; | ||
3450 | card->channel[1].port = 0x50; | ||
3451 | card->channel[1].num = 1; | ||
3452 | card->channel[2].offset = 0; | ||
3453 | card->channel[2].port = 0x60; | ||
3454 | card->channel[2].num = 2; | ||
3455 | card->channel[3].offset = 0; | ||
3456 | card->channel[3].port = 0x70; | ||
3457 | card->channel[3].num = 3; | ||
3458 | card->channel[4].offset = 0; | ||
3459 | card->channel[4].port = 0xb0; | ||
3460 | card->channel[4].num = 4; | ||
3461 | /* claim our iospace and irq */ | ||
3462 | request_region(card->iobase, 256, card_names[pci_id->driver_data]); | ||
3463 | if (request_irq(card->irq, &ali_interrupt, IRQF_SHARED, | ||
3464 | card_names[pci_id->driver_data], card)) { | ||
3465 | printk(KERN_ERR "ali_audio: unable to allocate irq %d\n", | ||
3466 | card->irq); | ||
3467 | release_region(card->iobase, 256); | ||
3468 | kfree(card); | ||
3469 | return -ENODEV; | ||
3470 | } | ||
3471 | |||
3472 | if (ali_reset_5455(card) <= 0) { | ||
3473 | unregister_sound_dsp(card->dev_audio); | ||
3474 | release_region(card->iobase, 256); | ||
3475 | free_irq(card->irq, card); | ||
3476 | kfree(card); | ||
3477 | return -ENODEV; | ||
3478 | } | ||
3479 | |||
3480 | /* initialize AC97 codec and register /dev/mixer */ | ||
3481 | if (ali_ac97_init(card) < 0) { | ||
3482 | release_region(card->iobase, 256); | ||
3483 | free_irq(card->irq, card); | ||
3484 | kfree(card); | ||
3485 | return -ENODEV; | ||
3486 | } | ||
3487 | |||
3488 | pci_set_drvdata(pci_dev, card); | ||
3489 | |||
3490 | if (clocking == 0) { | ||
3491 | clocking = 48000; | ||
3492 | ali_configure_clocking(); | ||
3493 | } | ||
3494 | |||
3495 | /* register /dev/dsp */ | ||
3496 | if ((card->dev_audio = register_sound_dsp(&ali_audio_fops, -1)) < 0) { | ||
3497 | int i; | ||
3498 | printk(KERN_ERR"ali_audio: couldn't register DSP device!\n"); | ||
3499 | release_region(card->iobase, 256); | ||
3500 | free_irq(card->irq, card); | ||
3501 | for (i = 0; i < NR_AC97; i++) | ||
3502 | if (card->ac97_codec[i] != NULL) { | ||
3503 | unregister_sound_mixer(card->ac97_codec[i]->dev_mixer); | ||
3504 | kfree(card->ac97_codec[i]); | ||
3505 | } | ||
3506 | kfree(card); | ||
3507 | return -ENODEV; | ||
3508 | } | ||
3509 | card->initializing = 0; | ||
3510 | return 0; | ||
3511 | } | ||
3512 | |||
3513 | static void __devexit ali_remove(struct pci_dev *pci_dev) | ||
3514 | { | ||
3515 | int i; | ||
3516 | struct ali_card *card = pci_get_drvdata(pci_dev); | ||
3517 | /* free hardware resources */ | ||
3518 | free_irq(card->irq, devs); | ||
3519 | release_region(card->iobase, 256); | ||
3520 | /* unregister audio devices */ | ||
3521 | for (i = 0; i < NR_AC97; i++) | ||
3522 | if (card->ac97_codec[i] != NULL) { | ||
3523 | unregister_sound_mixer(card->ac97_codec[i]-> | ||
3524 | dev_mixer); | ||
3525 | ac97_release_codec(card->ac97_codec[i]); | ||
3526 | card->ac97_codec[i] = NULL; | ||
3527 | } | ||
3528 | unregister_sound_dsp(card->dev_audio); | ||
3529 | kfree(card); | ||
3530 | } | ||
3531 | |||
3532 | #ifdef CONFIG_PM | ||
3533 | static int ali_pm_suspend(struct pci_dev *dev, pm_message_t pm_state) | ||
3534 | { | ||
3535 | struct ali_card *card = pci_get_drvdata(dev); | ||
3536 | struct ali_state *state; | ||
3537 | unsigned long flags; | ||
3538 | struct dmabuf *dmabuf; | ||
3539 | int i, num_ac97; | ||
3540 | |||
3541 | if (!card) | ||
3542 | return 0; | ||
3543 | spin_lock_irqsave(&card->lock, flags); | ||
3544 | card->pm_suspended = 1; | ||
3545 | for (i = 0; i < NR_HW_CH; i++) { | ||
3546 | state = card->states[i]; | ||
3547 | if (!state) | ||
3548 | continue; | ||
3549 | /* this happens only if there are open files */ | ||
3550 | dmabuf = &state->dmabuf; | ||
3551 | if (dmabuf->enable & DAC_RUNNING || | ||
3552 | (dmabuf->count | ||
3553 | && (dmabuf->trigger & PCM_ENABLE_OUTPUT))) { | ||
3554 | state->pm_saved_dac_rate = dmabuf->rate; | ||
3555 | stop_dac(state); | ||
3556 | } else { | ||
3557 | state->pm_saved_dac_rate = 0; | ||
3558 | } | ||
3559 | if (dmabuf->enable & ADC_RUNNING) { | ||
3560 | state->pm_saved_adc_rate = dmabuf->rate; | ||
3561 | stop_adc(state); | ||
3562 | } else { | ||
3563 | state->pm_saved_adc_rate = 0; | ||
3564 | } | ||
3565 | dmabuf->ready = 0; | ||
3566 | dmabuf->swptr = dmabuf->hwptr = 0; | ||
3567 | dmabuf->count = dmabuf->total_bytes = 0; | ||
3568 | } | ||
3569 | |||
3570 | spin_unlock_irqrestore(&card->lock, flags); | ||
3571 | /* save mixer settings */ | ||
3572 | for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) { | ||
3573 | struct ac97_codec *codec = card->ac97_codec[num_ac97]; | ||
3574 | if (!codec) | ||
3575 | continue; | ||
3576 | for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) { | ||
3577 | if ((supported_mixer(codec, i)) && (codec->read_mixer)) { | ||
3578 | card->pm_saved_mixer_settings[i][num_ac97] = codec->read_mixer(codec, i); | ||
3579 | } | ||
3580 | } | ||
3581 | } | ||
3582 | pci_save_state(dev); /* XXX do we need this? */ | ||
3583 | pci_disable_device(dev); /* disable busmastering */ | ||
3584 | pci_set_power_state(dev, 3); /* Zzz. */ | ||
3585 | return 0; | ||
3586 | } | ||
3587 | |||
3588 | |||
3589 | static int ali_pm_resume(struct pci_dev *dev) | ||
3590 | { | ||
3591 | int num_ac97, i = 0; | ||
3592 | struct ali_card *card = pci_get_drvdata(dev); | ||
3593 | pci_enable_device(dev); | ||
3594 | pci_restore_state(dev); | ||
3595 | /* observation of a toshiba portege 3440ct suggests that the | ||
3596 | hardware has to be more or less completely reinitialized from | ||
3597 | scratch after an apm suspend. Works For Me. -dan */ | ||
3598 | ali_ac97_random_init_stuff(card); | ||
3599 | for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) { | ||
3600 | struct ac97_codec *codec = card->ac97_codec[num_ac97]; | ||
3601 | /* check they haven't stolen the hardware while we were | ||
3602 | away */ | ||
3603 | if (!codec || !ali_ac97_exists(card, num_ac97)) { | ||
3604 | if (num_ac97) | ||
3605 | continue; | ||
3606 | else | ||
3607 | BUG(); | ||
3608 | } | ||
3609 | if (!ali_ac97_probe_and_powerup(card, codec)) | ||
3610 | BUG(); | ||
3611 | if ((card->ac97_features & 0x0001)) { | ||
3612 | /* at probe time we found we could do variable | ||
3613 | rates, but APM suspend has made it forget | ||
3614 | its magical powers */ | ||
3615 | if (!ali_ac97_enable_variable_rate(codec)) | ||
3616 | BUG(); | ||
3617 | } | ||
3618 | /* we lost our mixer settings, so restore them */ | ||
3619 | for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) { | ||
3620 | if (supported_mixer(codec, i)) { | ||
3621 | int val = card->pm_saved_mixer_settings[i][num_ac97]; | ||
3622 | codec->mixer_state[i] = val; | ||
3623 | codec->write_mixer(codec, i, | ||
3624 | (val & 0xff), | ||
3625 | ((val >> 8) & 0xff)); | ||
3626 | } | ||
3627 | } | ||
3628 | } | ||
3629 | |||
3630 | /* we need to restore the sample rate from whatever it was */ | ||
3631 | for (i = 0; i < NR_HW_CH; i++) { | ||
3632 | struct ali_state *state = card->states[i]; | ||
3633 | if (state) { | ||
3634 | if (state->pm_saved_adc_rate) | ||
3635 | ali_set_adc_rate(state, state->pm_saved_adc_rate); | ||
3636 | if (state->pm_saved_dac_rate) | ||
3637 | ali_set_dac_rate(state, state->pm_saved_dac_rate); | ||
3638 | } | ||
3639 | } | ||
3640 | |||
3641 | card->pm_suspended = 0; | ||
3642 | /* any processes that were reading/writing during the suspend | ||
3643 | probably ended up here */ | ||
3644 | for (i = 0; i < NR_HW_CH; i++) { | ||
3645 | struct ali_state *state = card->states[i]; | ||
3646 | if (state) | ||
3647 | wake_up(&state->dmabuf.wait); | ||
3648 | } | ||
3649 | return 0; | ||
3650 | } | ||
3651 | #endif /* CONFIG_PM */ | ||
3652 | |||
3653 | MODULE_AUTHOR(""); | ||
3654 | MODULE_DESCRIPTION("ALI 5455 audio support"); | ||
3655 | MODULE_LICENSE("GPL"); | ||
3656 | module_param(clocking, int, 0); | ||
3657 | /* FIXME: bool? */ | ||
3658 | module_param(strict_clocking, uint, 0); | ||
3659 | module_param(codec_pcmout_share_spdif_locked, uint, 0); | ||
3660 | module_param(codec_independent_spdif_locked, uint, 0); | ||
3661 | module_param(controller_pcmout_share_spdif_locked, uint, 0); | ||
3662 | module_param(controller_independent_spdif_locked, uint, 0); | ||
3663 | #define ALI5455_MODULE_NAME "ali5455" | ||
3664 | static struct pci_driver ali_pci_driver = { | ||
3665 | .name = ALI5455_MODULE_NAME, | ||
3666 | .id_table = ali_pci_tbl, | ||
3667 | .probe = ali_probe, | ||
3668 | .remove = __devexit_p(ali_remove), | ||
3669 | #ifdef CONFIG_PM | ||
3670 | .suspend = ali_pm_suspend, | ||
3671 | .resume = ali_pm_resume, | ||
3672 | #endif /* CONFIG_PM */ | ||
3673 | }; | ||
3674 | |||
3675 | static int __init ali_init_module(void) | ||
3676 | { | ||
3677 | printk(KERN_INFO "ALI 5455 + AC97 Audio, version " | ||
3678 | DRIVER_VERSION ", " __TIME__ " " __DATE__ "\n"); | ||
3679 | |||
3680 | if (codec_independent_spdif_locked > 0) { | ||
3681 | if (codec_independent_spdif_locked == 32000 | ||
3682 | || codec_independent_spdif_locked == 44100 | ||
3683 | || codec_independent_spdif_locked == 48000) { | ||
3684 | printk(KERN_INFO "ali_audio: Enabling S/PDIF at sample rate %dHz.\n", codec_independent_spdif_locked); | ||
3685 | } else { | ||
3686 | printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n"); | ||
3687 | codec_independent_spdif_locked = 0; | ||
3688 | } | ||
3689 | } | ||
3690 | if (controller_independent_spdif_locked > 0) { | ||
3691 | if (controller_independent_spdif_locked == 32000 | ||
3692 | || controller_independent_spdif_locked == 44100 | ||
3693 | || controller_independent_spdif_locked == 48000) { | ||
3694 | printk(KERN_INFO "ali_audio: Enabling S/PDIF at sample rate %dHz.\n", controller_independent_spdif_locked); | ||
3695 | } else { | ||
3696 | printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n"); | ||
3697 | controller_independent_spdif_locked = 0; | ||
3698 | } | ||
3699 | } | ||
3700 | |||
3701 | if (codec_pcmout_share_spdif_locked > 0) { | ||
3702 | if (codec_pcmout_share_spdif_locked == 32000 | ||
3703 | || codec_pcmout_share_spdif_locked == 44100 | ||
3704 | || codec_pcmout_share_spdif_locked == 48000) { | ||
3705 | printk(KERN_INFO "ali_audio: Enabling S/PDIF at sample rate %dHz.\n", codec_pcmout_share_spdif_locked); | ||
3706 | } else { | ||
3707 | printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n"); | ||
3708 | codec_pcmout_share_spdif_locked = 0; | ||
3709 | } | ||
3710 | } | ||
3711 | if (controller_pcmout_share_spdif_locked > 0) { | ||
3712 | if (controller_pcmout_share_spdif_locked == 32000 | ||
3713 | || controller_pcmout_share_spdif_locked == 44100 | ||
3714 | || controller_pcmout_share_spdif_locked == 48000) { | ||
3715 | printk(KERN_INFO "ali_audio: Enabling controller S/PDIF at sample rate %dHz.\n", controller_pcmout_share_spdif_locked); | ||
3716 | } else { | ||
3717 | printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n"); | ||
3718 | controller_pcmout_share_spdif_locked = 0; | ||
3719 | } | ||
3720 | } | ||
3721 | return pci_register_driver(&ali_pci_driver); | ||
3722 | } | ||
3723 | |||
3724 | static void __exit ali_cleanup_module(void) | ||
3725 | { | ||
3726 | pci_unregister_driver(&ali_pci_driver); | ||
3727 | } | ||
3728 | |||
3729 | module_init(ali_init_module); | ||
3730 | module_exit(ali_cleanup_module); | ||
3731 | /* | ||
3732 | Local Variables: | ||
3733 | c-basic-offset: 8 | ||
3734 | End: | ||
3735 | */ | ||