2 * ALI ali5455 and friends ICH driver for Linux
3 * LEI HU <Lei_Hu@ali.com.tw>
6 * drivers/sound/i810_audio
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
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.
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.
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.
27 * ALi 5455 theory of operation
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.
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.
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.
45 * If you need to force a specific rate set the clocking= option
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>
61 #include <linux/init.h>
62 #include <linux/poll.h>
63 #include <linux/spinlock.h>
64 #include <linux/smp_lock.h>
65 #include <linux/ac97_codec.h>
66 #include <linux/interrupt.h>
67 #include <asm/uaccess.h>
68 #include <asm/hardirq.h>
70 #ifndef PCI_DEVICE_ID_ALI_5455
71 #define PCI_DEVICE_ID_ALI_5455 0x5455
74 #ifndef PCI_VENDOR_ID_ALI
75 #define PCI_VENDOR_ID_ALI 0x10b9
78 static int strict_clocking = 0;
79 static unsigned int clocking = 0;
80 static unsigned int codec_pcmout_share_spdif_locked = 0;
81 static unsigned int codec_independent_spdif_locked = 0;
82 static unsigned int controller_pcmout_share_spdif_locked = 0;
83 static unsigned int controller_independent_spdif_locked = 0;
84 static unsigned int globel = 0;
88 #define CODEC_SPDIFOUT_RUNNING 8
89 #define CONTROLLER_SPDIFOUT_RUNNING 4
91 #define SPDIF_ENABLE_OUTPUT 4 /* bits 0,1 are PCM */
93 #define ALI5455_FMT_16BIT 1
94 #define ALI5455_FMT_STEREO 2
95 #define ALI5455_FMT_MASK 3
97 #define SPDIF_ON 0x0004
98 #define SURR_ON 0x0010
99 #define CENTER_LFE_ON 0x0020
100 #define VOL_MUTED 0x8000
103 #define ALI_SPDIF_OUT_CH_STATUS 0xbf
104 /* the 810's array of pointers to data buffers */
107 #define BUSADDR_MASK 0xFFFFFFFE
109 #define CON_IOC 0x80000000 /* interrupt on completion */
110 #define CON_BUFPAD 0x40000000 /* pad underrun with last sample, else 0 */
111 #define CON_BUFLEN_MASK 0x0000ffff /* buffer length in samples */
115 /* an instance of the ali channel */
118 /* these sg guys should probably be allocated
119 separately as nocache. Must be 8 byte aligned */
120 struct sg_item sg[SG_LEN]; /* 32*8 */
128 * we have 3 separate dma engines. pcm in, pcm out, and mic.
129 * each dma engine has controlling registers. These goofy
130 * names are from the datasheet, but make it easy to write
131 * code while leafing through it.
134 #define ENUM_ENGINE(PRE,DIG) \
136 PRE##_BDBAR = 0x##DIG##0, /* Buffer Descriptor list Base Address */ \
137 PRE##_CIV = 0x##DIG##4, /* Current Index Value */ \
138 PRE##_LVI = 0x##DIG##5, /* Last Valid Index */ \
139 PRE##_SR = 0x##DIG##6, /* Status Register */ \
140 PRE##_PICB = 0x##DIG##8, /* Position In Current Buffer */ \
141 PRE##_CR = 0x##DIG##b /* Control Register */ \
144 ENUM_ENGINE(OFF, 0); /* Offsets */
145 ENUM_ENGINE(PI, 4); /* PCM In */
146 ENUM_ENGINE(PO, 5); /* PCM Out */
147 ENUM_ENGINE(MC, 6); /* Mic In */
148 ENUM_ENGINE(CODECSPDIFOUT, 7); /* CODEC SPDIF OUT */
149 ENUM_ENGINE(CONTROLLERSPDIFIN, A); /* CONTROLLER SPDIF In */
150 ENUM_ENGINE(CONTROLLERSPDIFOUT, B); /* CONTROLLER SPDIF OUT */
154 ALI_SCR = 0x00, /* System Control Register */
155 ALI_SSR = 0x04, /* System Status Register */
156 ALI_DMACR = 0x08, /* DMA Control Register */
157 ALI_FIFOCR1 = 0x0c, /* FIFO Control Register 1 */
158 ALI_INTERFACECR = 0x10, /* Interface Control Register */
159 ALI_INTERRUPTCR = 0x14, /* Interrupt control Register */
160 ALI_INTERRUPTSR = 0x18, /* Interrupt Status Register */
161 ALI_FIFOCR2 = 0x1c, /* FIFO Control Register 2 */
162 ALI_CPR = 0x20, /* Command Port Register */
163 ALI_SPR = 0x24, /* Status Port Register */
164 ALI_FIFOCR3 = 0x2c, /* FIFO Control Register 3 */
165 ALI_TTSR = 0x30, /* Transmit Tag Slot Register */
166 ALI_RTSR = 0x34, /* Receive Tag Slot Register */
167 ALI_CSPSR = 0x38, /* Command/Status Port Status Register */
168 ALI_CAS = 0x3c, /* Codec Write Semaphore Register */
169 ALI_SPDIFCSR = 0xf8, /* spdif channel status register */
170 ALI_SPDIFICS = 0xfc /* spdif interface control/status */
173 // x-status register(x:pcm in ,pcm out, mic in,)
174 /* interrupts for a dma engine */
175 #define DMA_INT_FIFO (1<<4) /* fifo under/over flow */
176 #define DMA_INT_COMPLETE (1<<3) /* buffer read/write complete and ioc set */
177 #define DMA_INT_LVI (1<<2) /* last valid done */
178 #define DMA_INT_CELV (1<<1) /* last valid is current */
179 #define DMA_INT_DCH (1) /* DMA Controller Halted (happens on LVI interrupts) */ //not eqult intel
180 #define DMA_INT_MASK (DMA_INT_FIFO|DMA_INT_COMPLETE|DMA_INT_LVI)
182 /* interrupts for the whole chip */// by interrupt status register finish
184 #define INT_SPDIFOUT (1<<23) /* controller spdif out INTERRUPT */
185 #define INT_SPDIFIN (1<<22)
186 #define INT_CODECSPDIFOUT (1<<19)
187 #define INT_MICIN (1<<18)
188 #define INT_PCMOUT (1<<17)
189 #define INT_PCMIN (1<<16)
190 #define INT_CPRAIS (1<<7)
191 #define INT_SPRAIS (1<<5)
192 #define INT_GPIO (1<<1)
193 #define INT_MASK (INT_SPDIFOUT|INT_CODECSPDIFOUT|INT_MICIN|INT_PCMOUT|INT_PCMIN)
195 #define DRIVER_VERSION "0.02ac"
197 /* magic numbers to protect our data structures */
198 #define ALI5455_CARD_MAGIC 0x5072696E /* "Prin" */
199 #define ALI5455_STATE_MAGIC 0x63657373 /* "cess" */
200 #define ALI5455_DMA_MASK 0xffffffff /* DMA buffer mask for pci_alloc_consist */
201 #define NR_HW_CH 5 //I think 5 channel
203 /* maxinum number of AC97 codecs connected, AC97 2.0 defined 4 */
206 /* Please note that an 8bit mono stream is not valid on this card, you must have a 16bit */
207 /* stream at a minimum for this card to be happy */
208 static const unsigned sample_size[] = { 1, 2, 2, 4 };
209 /* Samples are 16bit values, so we are shifting to a word, not to a byte, hence shift */
210 /* values are one less than might be expected */
211 static const unsigned sample_shift[] = { -1, 0, 0, 1 };
214 static char *card_names[] = {
218 static struct pci_device_id ali_pci_tbl[] = {
219 {PCI_VENDOR_ID_ALI, PCI_DEVICE_ID_ALI_5455,
220 PCI_ANY_ID, PCI_ANY_ID, 0, 0, ALI5455},
224 MODULE_DEVICE_TABLE(pci, ali_pci_tbl);
227 #define PM_SUSPENDED(card) (card->pm_suspended)
229 #define PM_SUSPENDED(card) (0)
232 /* "software" or virtual channel, an instance of opened /dev/dsp */
235 struct ali_card *card; /* Card info */
237 /* single open lock mechanism, only used for recording */
238 struct semaphore open_sem;
239 wait_queue_head_t open_wait;
244 /* virtual channel number */
248 unsigned int pm_saved_dac_rate, pm_saved_adc_rate;
251 /* wave sample stuff */
253 unsigned char fmt, enable, trigger;
255 /* hardware channel */
256 struct ali_channel *read_channel;
257 struct ali_channel *write_channel;
258 struct ali_channel *codec_spdifout_channel;
259 struct ali_channel *controller_spdifout_channel;
261 /* OSS buffer management stuff */
263 dma_addr_t dma_handle;
268 /* our buffer acts like a circular ring */
269 unsigned hwptr; /* where dma last started, updated by update_ptr */
270 unsigned swptr; /* where driver last clear/filled, updated by read/write */
271 int count; /* bytes to be consumed or been generated by dma machine */
272 unsigned total_bytes; /* total bytes dmaed by hardware */
274 unsigned error; /* number of over/underruns */
275 wait_queue_head_t wait; /* put process on wait queue when no more space in buffer */
277 /* redundant, but makes calculations easier */
278 /* what the hardware uses */
281 unsigned fragsamples;
283 /* what we tell the user to expect */
285 unsigned userfragsize;
290 unsigned update_flag;
291 unsigned ossfragsize;
292 unsigned ossmaxfrags;
293 unsigned subdivision;
299 struct ali_channel channel[5];
302 /* We keep ali5455 cards in a linked list */
303 struct ali_card *next;
305 /* The ali has a certain amount of cross channel interaction
306 so we use a single per card lock */
308 spinlock_t ac97_lock;
310 /* PCI device stuff */
311 struct pci_dev *pci_dev;
315 u32 pm_save_state[64 / sizeof(u32)];
316 int pm_saved_mixer_settings[SOUND_MIXER_NRDEVICES][NR_AC97];
318 /* soundcore stuff */
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];
329 /* hardware resources */
330 unsigned long iobase;
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);
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) */
348 static struct ali_card *devs = NULL;
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);
356 static struct ali_channel *ali_alloc_pcm_channel(struct ali_card *card)
358 if (card->channel[1].used == 1)
360 card->channel[1].used = 1;
361 return &card->channel[1];
364 static struct ali_channel *ali_alloc_rec_pcm_channel(struct ali_card *card)
366 if (card->channel[0].used == 1)
368 card->channel[0].used = 1;
369 return &card->channel[0];
372 static struct ali_channel *ali_alloc_rec_mic_channel(struct ali_card *card)
374 if (card->channel[2].used == 1)
376 card->channel[2].used = 1;
377 return &card->channel[2];
380 static struct ali_channel *ali_alloc_codec_spdifout_channel(struct ali_card *card)
382 if (card->channel[3].used == 1)
384 card->channel[3].used = 1;
385 return &card->channel[3];
388 static struct ali_channel *ali_alloc_controller_spdifout_channel(struct ali_card *card)
390 if (card->channel[4].used == 1)
392 card->channel[4].used = 1;
393 return &card->channel[4];
395 static void ali_free_pcm_channel(struct ali_card *card, int channel)
397 card->channel[channel].used = 0;
401 //add support codec spdif out
402 static int ali_valid_spdif_rate(struct ac97_codec *codec, int rate)
404 unsigned long id = 0L;
406 id = (ali_ac97_get(codec, AC97_VENDOR_ID1) << 16);
407 id |= ali_ac97_get(codec, AC97_VENDOR_ID2) & 0xffff;
409 case 0x41445361: /* AD1886 */
414 case 0x414c4720: /* ALC650 */
419 default: /* all other codecs, until we know otherwiae */
420 if (rate == 48000 || rate == 44100 || rate == 32000) {
428 /* ali_set_spdif_output
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.
435 * The DSP sample rate must already be set to a supported
436 * S/PDIF rate (32kHz, 44.1kHz, or 48kHz) or we abort.
438 static void ali_set_spdif_output(struct ali_state *state, int slots,
443 struct ac97_codec *codec = state->card->ac97_codec[0];
445 if (!(state->card->ac97_features & 4)) {
446 state->card->ac97_status &= ~SPDIF_ON;
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));
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));
458 state->card->ac97_status &= ~(VOL_MUTED | SPDIF_ON);
462 vol = ali_ac97_get(codec, AC97_MASTER_VOL_STEREO);
463 state->card->ac97_status = vol & VOL_MUTED;
465 /* Set S/PDIF transmitter sample rate */
466 aud_reg = ali_ac97_get(codec, AC97_SPDIF_CONTROL);
469 aud_reg = (aud_reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_32K;
472 aud_reg = (aud_reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_44K;
475 aud_reg = (aud_reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_48K;
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;
485 ali_ac97_set(codec, AC97_SPDIF_CONTROL, aud_reg);
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);
491 aud_reg = ali_ac97_get(codec, AC97_POWER_CONTROL);
493 ali_ac97_set(codec, AC97_POWER_CONTROL, aud_reg);
496 state->card->ac97_status |= SPDIF_ON;
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;
506 if (codec_independent_spdif_locked > 0) {
507 aud_reg = ali_ac97_get(codec, 0x6a);
508 ali_ac97_set(codec, 0x6a, (aud_reg & 0xefff));
510 /* Mute the analog output */
511 /* Should this only mute the PCM volume??? */
515 /* ali_set_dac_channels
517 * Configure the codec's multi-channel DACs
519 * The logic is backwards. Setting the bit to 1 turns off the DAC.
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
527 * vailidate that the codec really supports these DACs
528 * before turning them on.
530 static void ali_set_dac_channels(struct ali_state *state, int channel)
533 struct ac97_codec *codec = state->card->ac97_codec[0];
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);
540 case 2: /* always enabled */
543 aud_reg &= ~AC97_EA_PRJ;
544 state->card->ac97_status |= SURR_ON;
547 aud_reg &= ~(AC97_EA_PRJ | AC97_EA_PRI | AC97_EA_PRK);
548 state->card->ac97_status |= SURR_ON | CENTER_LFE_ON;
553 ali_ac97_set(codec, AC97_EXTENDED_STATUS, aud_reg);
557 /* set playback sample rate */
558 static unsigned int ali_set_dac_rate(struct ali_state *state,
561 struct dmabuf *dmabuf = &state->dmabuf;
563 struct ac97_codec *codec = state->card->ac97_codec[0];
565 if (!(state->card->ac97_features & 0x0001)) {
566 dmabuf->rate = clocking;
577 * Adjust for misclocked crap
580 rate = (rate * clocking) / 48000;
582 if (strict_clocking && rate < 8000) {
584 dmabuf->rate = (rate * 48000) / clocking;
587 new_rate = ac97_set_dac_rate(codec, rate);
588 if (new_rate != rate) {
589 dmabuf->rate = (new_rate * 48000) / clocking;
595 /* set recording sample rate */
596 static unsigned int ali_set_adc_rate(struct ali_state *state,
599 struct dmabuf *dmabuf = &state->dmabuf;
601 struct ac97_codec *codec = state->card->ac97_codec[0];
603 if (!(state->card->ac97_features & 0x0001)) {
604 dmabuf->rate = clocking;
615 * Adjust for misclocked crap
618 rate = (rate * clocking) / 48000;
619 if (strict_clocking && rate < 8000) {
621 dmabuf->rate = (rate * 48000) / clocking;
624 new_rate = ac97_set_adc_rate(codec, rate);
626 if (new_rate != rate) {
627 dmabuf->rate = (new_rate * 48000) / clocking;
633 /* set codec independent spdifout sample rate */
634 static unsigned int ali_set_codecspdifout_rate(struct ali_state *state,
637 struct dmabuf *dmabuf = &state->dmabuf;
639 if (!(state->card->ac97_features & 0x0001)) {
640 dmabuf->rate = clocking;
653 /* set controller independent spdif out function sample rate */
654 static void ali_set_spdifout_rate(struct ali_state *state,
657 unsigned char ch_st_sel;
658 unsigned short status_rate;
673 ch_st_sel = inb(state->card->iobase + ALI_SPDIFICS) & ALI_SPDIF_OUT_CH_STATUS; //select spdif_out
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));
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));
684 /* get current playback/recording dma buffer pointer (byte offset from LBA),
685 called with spinlock held! */
687 static inline unsigned ali_get_dma_addr(struct ali_state *state, int rec)
689 struct dmabuf *dmabuf = &state->dmabuf;
690 unsigned int civ, offset, port, port_picb;
697 port = state->card->iobase + dmabuf->read_channel->port;
699 port = state->card->iobase + dmabuf->codec_spdifout_channel->port;
701 port = state->card->iobase + dmabuf->controller_spdifout_channel->port;
703 port = state->card->iobase + dmabuf->write_channel->port;
705 port_picb = port + OFF_PICB;
708 civ = inb(port + OFF_CIV) & 31;
709 offset = inw(port_picb);
710 /* Must have a delay here! */
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 ;-)
726 } while (civ != (inb(port + OFF_CIV) & 31) || offset != inw(port_picb));
728 data = ((civ + 1) * dmabuf->fragsize - (2 * offset)) % dmabuf->dmasize;
729 if (inw(port_picb) == 0)
735 /* Stop recording (lock held) */
736 static inline void __stop_adc(struct ali_state *state)
738 struct dmabuf *dmabuf = &state->dmabuf;
739 struct ali_card *card = state->card;
741 dmabuf->enable &= ~ADC_RUNNING;
743 outl((1 << 18) | (1 << 16), card->iobase + ALI_DMACR);
746 outb(0, card->iobase + PI_CR);
747 while (inb(card->iobase + PI_CR) != 0);
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);
754 static void stop_adc(struct ali_state *state)
756 struct ali_card *card = state->card;
758 spin_lock_irqsave(&card->lock, flags);
760 spin_unlock_irqrestore(&card->lock, flags);
763 static inline void __start_adc(struct ali_state *state)
765 struct dmabuf *dmabuf = &state->dmabuf;
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
774 if (state->card->channel[2].used == 1)
775 outl((1 << 2), state->card->iobase + ALI_DMACR); //DMA CONTROL REGISTER
780 static void start_adc(struct ali_state *state)
782 struct ali_card *card = state->card;
785 spin_lock_irqsave(&card->lock, flags);
787 spin_unlock_irqrestore(&card->lock, flags);
790 /* stop playback (lock held) */
791 static inline void __stop_dac(struct ali_state *state)
793 struct dmabuf *dmabuf = &state->dmabuf;
794 struct ali_card *card = state->card;
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)
802 outb(inb(card->iobase + PO_SR) | 0x001e, card->iobase + PO_SR);
804 outl(inl(card->iobase + ALI_INTERRUPTSR) & INT_PCMOUT, card->iobase + ALI_INTERRUPTSR);
807 static void stop_dac(struct ali_state *state)
809 struct ali_card *card = state->card;
811 spin_lock_irqsave(&card->lock, flags);
813 spin_unlock_irqrestore(&card->lock, flags);
816 static inline void __start_dac(struct ali_state *state)
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
827 static void start_dac(struct ali_state *state)
829 struct ali_card *card = state->card;
831 spin_lock_irqsave(&card->lock, flags);
833 spin_unlock_irqrestore(&card->lock, flags);
836 /* stop codec and controller spdif out (lock held) */
837 static inline void __stop_spdifout(struct ali_state *state)
839 struct dmabuf *dmabuf = &state->dmabuf;
840 struct ali_card *card = state->card;
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);
847 while (inb(card->iobase + CODECSPDIFOUT_CR) != 0)
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);
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)
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);
865 static void stop_spdifout(struct ali_state *state)
867 struct ali_card *card = state->card;
869 spin_lock_irqsave(&card->lock, flags);
870 __stop_spdifout(state);
871 spin_unlock_irqrestore(&card->lock, flags);
874 static inline void __start_spdifout(struct ali_state *state)
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
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
893 static void start_spdifout(struct ali_state *state)
895 struct ali_card *card = state->card;
897 spin_lock_irqsave(&card->lock, flags);
898 __start_spdifout(state);
899 spin_unlock_irqrestore(&card->lock, flags);
902 #define DMABUF_DEFAULTORDER (16-PAGE_SHIFT)
903 #define DMABUF_MINORDER 1
905 /* allocate DMA buffer, playback , recording,spdif out buffer should be allocated separately */
906 static int alloc_dmabuf(struct ali_state *state)
908 struct dmabuf *dmabuf = &state->dmabuf;
911 struct page *page, *pend;
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;
920 if (dmabuf->rawbuf && (PAGE_SIZE << dmabuf->buforder) == size)
922 /* alloc enough to satisfy the oss params */
923 for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--) {
924 if ((PAGE_SIZE << order) > size)
926 if ((rawbuf = pci_alloc_consistent(state->card->pci_dev,
928 &dmabuf->dma_handle)))
934 dmabuf->ready = dmabuf->mapped = 0;
935 dmabuf->rawbuf = rawbuf;
936 dmabuf->buforder = order;
938 /* now mark the pages as reserved; otherwise remap_page_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);
945 /* free DMA buffer */
946 static void dealloc_dmabuf(struct ali_state *state)
948 struct dmabuf *dmabuf = &state->dmabuf;
949 struct page *page, *pend;
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);
960 dmabuf->rawbuf = NULL;
961 dmabuf->mapped = dmabuf->ready = 0;
964 static int prog_dmabuf(struct ali_state *state, unsigned rec)
966 struct dmabuf *dmabuf = &state->dmabuf;
967 struct ali_channel *c = NULL;
974 spin_lock_irqsave(&state->card->lock, flags);
975 if (dmabuf->enable & DAC_RUNNING)
977 if (dmabuf->enable & ADC_RUNNING)
979 if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING)
980 __stop_spdifout(state);
981 if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)
982 __stop_spdifout(state);
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);
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).
993 if ((ret = alloc_dmabuf(state)))
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
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;
1010 memset(dmabuf->rawbuf, 0, dmabuf->dmasize);
1012 if (dmabuf->ossmaxfrags == 4) {
1014 dmabuf->fragshift = 2;
1015 } else if (dmabuf->ossmaxfrags == 8) {
1017 dmabuf->fragshift = 3;
1018 } else if (dmabuf->ossmaxfrags == 16) {
1020 dmabuf->fragshift = 4;
1023 dmabuf->fragshift = 5;
1026 * Now set up the ring
1030 c = dmabuf->read_channel;
1032 c = dmabuf->codec_spdifout_channel;
1034 c = dmabuf->controller_spdifout_channel;
1036 c = dmabuf->write_channel;
1040 * Load up 32 sg entries and take an interrupt at half
1041 * way (we might want more interrupts later..)
1043 for (i = 0; i < dmabuf->numfrag; i++) {
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;
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);
1064 /* set the ready flag for the dma buffer */
1069 static void __ali_update_lvi(struct ali_state *state, int rec)
1071 struct dmabuf *dmabuf = &state->dmabuf;
1073 port = state->card->iobase;
1075 port += dmabuf->read_channel->port;
1077 port += dmabuf->codec_spdifout_channel->port;
1079 port += dmabuf->controller_spdifout_channel->port;
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
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);
1094 while (! (inb(port + OFF_CR) & ((1 << 4) | (1 << 2))))
1096 } else if (!rec && dmabuf->count && (dmabuf->trigger & PCM_ENABLE_OUTPUT)) {
1097 outb((inb(port + OFF_CIV) + 1) & 31, port + OFF_LVI);
1099 while (!(inb(port + OFF_CR) & ((1 << 4) | (1 << 2))))
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))))
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))))
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);
1125 static void ali_update_lvi(struct ali_state *state, int rec)
1127 struct dmabuf *dmabuf = &state->dmabuf;
1128 unsigned long flags;
1131 spin_lock_irqsave(&state->card->lock, flags);
1132 __ali_update_lvi(state, rec);
1133 spin_unlock_irqrestore(&state->card->lock, flags);
1136 /* update buffer manangement pointers, especially, dmabuf->count and dmabuf->hwptr */
1137 static void ali_update_ptr(struct ali_state *state)
1139 struct dmabuf *dmabuf = &state->dmabuf;
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");
1161 if (dmabuf->count > dmabuf->userfragsize)
1162 wake_up(&dmabuf->wait);
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);
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);
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,
1192 if (dmabuf->count < (dmabuf->dmasize - dmabuf->userfragsize))
1193 wake_up(&dmabuf->wait);
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);
1218 if (dmabuf->count < (dmabuf->dmasize - dmabuf->userfragsize))
1219 wake_up(&dmabuf->wait);
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)) {
1236 "ali_audio: DMA overrun on write\n");
1237 printk("ali_audio: CIV %d, LVI %d, hwptr %x, "
1239 inb(state->card->iobase + CONTROLLERSPDIFOUT_CIV) & 31,
1240 inb(state->card->iobase + CONTROLLERSPDIFOUT_LVI) & 31,
1241 dmabuf->hwptr, dmabuf->count);
1245 if (dmabuf->count < (dmabuf->dmasize - dmabuf->userfragsize))
1246 wake_up(&dmabuf->wait);
1250 static inline int ali_get_free_write_space(struct
1254 struct dmabuf *dmabuf = &state->dmabuf;
1257 if (dmabuf->count < 0) {
1259 dmabuf->swptr = dmabuf->hwptr;
1261 free = dmabuf->dmasize - dmabuf->swptr;
1262 if ((dmabuf->count + free) > dmabuf->dmasize){
1263 free = dmabuf->dmasize - dmabuf->count;
1268 static inline int ali_get_available_read_data(struct
1272 struct dmabuf *dmabuf = &state->dmabuf;
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;
1280 avail = dmabuf->count;
1281 avail -= (dmabuf->hwptr % dmabuf->fragsize);
1287 static int drain_dac(struct ali_state *state, int signals_allowed)
1290 DECLARE_WAITQUEUE(wait, current);
1291 struct dmabuf *dmabuf = &state->dmabuf;
1292 unsigned long flags;
1297 if (dmabuf->mapped) {
1301 add_wait_queue(&dmabuf->wait, &wait);
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);
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.
1316 if (!dmabuf->enable) {
1317 dmabuf->trigger = PCM_ENABLE_OUTPUT;
1318 ali_update_lvi(state, 0);
1320 if (signal_pending(current) && signals_allowed) {
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!
1333 set_current_state(TASK_INTERRUPTIBLE);
1335 * set the timeout to significantly longer than it *should*
1336 * take for the DAC to drain the DMA buffer
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");
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;
1354 static int drain_spdifout(struct ali_state *state, int signals_allowed)
1357 DECLARE_WAITQUEUE(wait, current);
1358 struct dmabuf *dmabuf = &state->dmabuf;
1359 unsigned long flags;
1364 if (dmabuf->mapped) {
1365 stop_spdifout(state);
1368 add_wait_queue(&dmabuf->wait, &wait);
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);
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.
1383 if (!dmabuf->enable) {
1384 if (codec_independent_spdif_locked > 0) {
1385 dmabuf->trigger = SPDIF_ENABLE_OUTPUT;
1386 ali_update_lvi(state, 2);
1388 if (controller_independent_spdif_locked > 0) {
1389 dmabuf->trigger = SPDIF_ENABLE_OUTPUT;
1390 ali_update_lvi(state, 3);
1394 if (signal_pending(current) && signals_allowed) {
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!
1407 set_current_state(TASK_INTERRUPTIBLE);
1409 * set the timeout to significantly longer than it *should*
1410 * take for the DAC to drain the DMA buffer
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");
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);
1427 static void ali_channel_interrupt(struct ali_card *card)
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;
1439 if (!state->dmabuf.ready)
1441 dmabuf = &state->dmabuf;
1442 if (codec_independent_spdif_locked > 0) {
1443 if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) {
1444 c = dmabuf->codec_spdifout_channel;
1447 if (controller_independent_spdif_locked > 0) {
1448 if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)
1449 c = dmabuf->controller_spdifout_channel;
1451 if (dmabuf->enable & DAC_RUNNING) {
1452 c = dmabuf->write_channel;
1453 } else if (dmabuf->enable & ADC_RUNNING) {
1454 c = dmabuf->read_channel;
1461 status = inw(port + OFF_SR);
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
1469 ali_update_ptr(state);
1472 if (status & DMA_INT_LVI) {
1473 ali_update_ptr(state);
1474 wake_up(&dmabuf->wait);
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;
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);
1494 if (dmabuf->enable & DAC_RUNNING)
1496 if (dmabuf->enable & ADC_RUNNING)
1498 if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING)
1499 __stop_spdifout(state);
1500 if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)
1501 __stop_spdifout(state);
1503 wake_up(&dmabuf->wait);
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;
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);
1529 if (dmabuf->enable & DAC_RUNNING)
1531 if (dmabuf->enable & ADC_RUNNING)
1533 if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING)
1534 __stop_spdifout(state);
1535 if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)
1536 __stop_spdifout(state);
1538 wake_up(&dmabuf->wait);
1541 outw(status & DMA_INT_MASK, port + OFF_SR);
1545 static irqreturn_t ali_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1547 struct ali_card *card = (struct ali_card *) dev_id;
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 */
1558 if (codec_independent_spdif_locked > 0) {
1561 status2 = inw(card->iobase + 0x76);
1562 outw(status2 | 0x000c, card->iobase + 0x76);
1564 if (status & (INT_PCMOUT | INT_PCMIN | INT_MICIN | INT_SPDIFOUT | INT_CODECSPDIFOUT))
1565 ali_channel_interrupt(card);
1568 if (status & (INT_PCMOUT | INT_PCMIN | INT_MICIN | INT_SPDIFOUT | INT_CODECSPDIFOUT))
1569 ali_channel_interrupt(card);
1573 outl(status & INT_MASK, card->iobase + ALI_INTERRUPTSR);
1574 spin_unlock(&card->lock);
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. */
1582 static ssize_t ali_read(struct file *file, char __user *buffer,
1583 size_t count, loff_t * ppos)
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;
1589 unsigned long flags;
1592 DECLARE_WAITQUEUE(waita, current);
1594 printk("ali_audio: ali_read called, count = %d\n", count);
1598 if (dmabuf->enable & DAC_RUNNING)
1600 if (!dmabuf->read_channel) {
1602 dmabuf->read_channel = card->alloc_rec_pcm_channel(card);
1603 if (!dmabuf->read_channel) {
1607 if (!dmabuf->ready && (ret = prog_dmabuf(state, 1)))
1609 if (!access_ok(VERIFY_WRITE, buffer, count))
1612 add_wait_queue(&dmabuf->wait, &waita);
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);
1619 if (signal_pending(current)) {
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);
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
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
1651 dmabuf->trigger = PCM_ENABLE_INPUT;
1653 * This does three things. Updates LVI to be correct,
1654 * makes sure the ADC is running, and updates the
1657 ali_update_lvi(state, 1);
1658 if (file->f_flags & O_NONBLOCK) {
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.
1667 tmo = (dmabuf->dmasize * HZ * 2) / (dmabuf->rate * 4);
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)) {
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,
1683 /* a buffer overrun, we delay the recovery until next time the
1684 while loop begin and we REALLY have space to record */
1686 if (signal_pending(current)) {
1687 ret = ret ? ret : -ERESTARTSYS;
1693 if (copy_to_user(buffer, dmabuf->rawbuf + swptr, cnt)) {
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);
1705 dmabuf->swptr = swptr;
1706 dmabuf->count -= cnt;
1707 spin_unlock_irqrestore(&card->lock, flags);
1713 ali_update_lvi(state, 1);
1714 set_current_state(TASK_RUNNING);
1715 remove_wait_queue(&dmabuf->wait, &waita);
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)
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;
1728 unsigned long flags;
1729 unsigned int swptr = 0;
1731 DECLARE_WAITQUEUE(waita, current);
1733 printk("ali_audio: ali_write called, count = %d\n", count);
1737 if (dmabuf->enable & ADC_RUNNING)
1739 if (codec_independent_spdif_locked > 0) {
1740 if (!dmabuf->codec_spdifout_channel) {
1742 dmabuf->codec_spdifout_channel = card->alloc_codec_spdifout_channel(card);
1743 if (!dmabuf->codec_spdifout_channel)
1747 if (controller_independent_spdif_locked > 0) {
1748 if (!dmabuf->controller_spdifout_channel) {
1750 dmabuf->controller_spdifout_channel = card->alloc_controller_spdifout_channel(card);
1751 if (!dmabuf->controller_spdifout_channel)
1755 if (!dmabuf->write_channel) {
1757 dmabuf->write_channel =
1758 card->alloc_pcm_channel(card);
1759 if (!dmabuf->write_channel)
1765 if (codec_independent_spdif_locked > 0) {
1766 if (!dmabuf->ready && (ret = prog_dmabuf(state, 2)))
1769 if (controller_independent_spdif_locked > 0) {
1770 if (!dmabuf->ready && (ret = prog_dmabuf(state, 3)))
1774 if (!dmabuf->ready && (ret = prog_dmabuf(state, 0)))
1778 if (!access_ok(VERIFY_READ, buffer, count))
1781 add_wait_queue(&dmabuf->wait, &waita);
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);
1788 if (signal_pending(current)) {
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.
1803 if (cnt > (dmabuf->dmasize - swptr))
1804 cnt = dmabuf->dmasize - swptr;
1805 spin_unlock_irqrestore(&state->card->lock, flags);
1808 "ali_audio: ali_write: %d bytes available space\n",
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
1824 // There is data waiting to be played
1826 * Force the trigger setting since we would
1827 * deadlock with it set any other way
1829 if (codec_independent_spdif_locked > 0) {
1830 dmabuf->trigger = SPDIF_ENABLE_OUTPUT;
1831 ali_update_lvi(state, 2);
1833 if (controller_independent_spdif_locked > 0) {
1834 dmabuf->trigger = SPDIF_ENABLE_OUTPUT;
1835 ali_update_lvi(state, 3);
1838 dmabuf->trigger = PCM_ENABLE_OUTPUT;
1839 ali_update_lvi(state, 0);
1842 if (file->f_flags & O_NONBLOCK) {
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. */
1857 /* FIXME - do timeout handling here !! */
1858 schedule_timeout(tmo >= 2 ? tmo : 2);
1860 if (signal_pending(current)) {
1867 if (copy_from_user(dmabuf->rawbuf + swptr, buffer, cnt)) {
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);
1880 dmabuf->swptr = swptr;
1881 dmabuf->count += cnt;
1885 spin_unlock_irqrestore(&state->card->lock, flags);
1887 if (swptr % dmabuf->fragsize) {
1888 x = dmabuf->fragsize - (swptr % dmabuf->fragsize);
1889 memset(dmabuf->rawbuf + swptr, '\0', x);
1892 if (codec_independent_spdif_locked > 0) {
1893 ali_update_lvi(state, 2);
1895 if (controller_independent_spdif_locked > 0) {
1896 ali_update_lvi(state, 3);
1898 ali_update_lvi(state, 0);
1901 set_current_state(TASK_RUNNING);
1902 remove_wait_queue(&dmabuf->wait, &waita);
1906 /* No kernel lock - we have our own spinlock */
1907 static unsigned int ali_poll(struct file *file, struct poll_table_struct
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;
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;
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;
1927 spin_unlock_irqrestore(&state->card->lock, flags);
1931 static int ali_mmap(struct file *file, struct vm_area_struct *vma)
1933 struct ali_state *state = (struct ali_state *) file->private_data;
1934 struct dmabuf *dmabuf = &state->dmabuf;
1938 if (vma->vm_flags & VM_WRITE) {
1939 if (!dmabuf->write_channel && (dmabuf->write_channel = state->card->alloc_pcm_channel(state->card)) == NULL) {
1944 if (vma->vm_flags & VM_READ) {
1945 if (!dmabuf->read_channel && (dmabuf->read_channel = state->card->alloc_rec_pcm_channel(state->card)) == NULL) {
1950 if ((ret = prog_dmabuf(state, 0)) != 0)
1953 if (vma->vm_pgoff != 0)
1955 size = vma->vm_end - vma->vm_start;
1956 if (size > (PAGE_SIZE << dmabuf->buforder))
1959 if (remap_page_range(vma, vma->vm_start, virt_to_phys(dmabuf->rawbuf), size, vma->vm_page_prot))
1962 dmabuf->trigger = 0;
1969 static int ali_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1971 struct ali_state *state = (struct ali_state *) file->private_data;
1972 struct ali_channel *c = NULL;
1973 struct dmabuf *dmabuf = &state->dmabuf;
1974 unsigned long flags;
1975 audio_buf_info abinfo;
1979 struct ac97_codec *codec = state->card->ac97_codec[0];
1980 void __user *argp = (void __user *)arg;
1981 int __user *p = argp;
1984 printk("ali_audio: ali_ioctl, arg=0x%x, cmd=",
1988 case OSS_GETVERSION:
1990 printk("OSS_GETVERSION\n");
1992 return put_user(SOUND_VERSION, p);
1993 case SNDCTL_DSP_RESET:
1995 printk("SNDCTL_DSP_RESET\n");
1997 spin_lock_irqsave(&state->card->lock, flags);
1998 if (dmabuf->enable == DAC_RUNNING) {
1999 c = dmabuf->write_channel;
2002 if (dmabuf->enable == ADC_RUNNING) {
2003 c = dmabuf->read_channel;
2006 if (dmabuf->enable == CODEC_SPDIFOUT_RUNNING) {
2007 c = dmabuf->codec_spdifout_channel;
2008 __stop_spdifout(state);
2010 if (dmabuf->enable == CONTROLLER_SPDIFOUT_RUNNING) {
2011 c = dmabuf->controller_spdifout_channel;
2012 __stop_spdifout(state);
2015 outb(2, state->card->iobase + c->port + OFF_CR); /* reset DMA machine */
2016 outl(virt_to_bus(&c->sg[0]),
2017 state->card->iobase + c->port + OFF_BDBAR);
2018 outb(0, state->card->iobase + c->port + OFF_CIV);
2019 outb(0, state->card->iobase + c->port + OFF_LVI);
2022 spin_unlock_irqrestore(&state->card->lock, flags);
2023 synchronize_irq(state->card->pci_dev->irq);
2025 dmabuf->swptr = dmabuf->hwptr = 0;
2026 dmabuf->count = dmabuf->total_bytes = 0;
2028 case SNDCTL_DSP_SYNC:
2030 printk("SNDCTL_DSP_SYNC\n");
2032 if (codec_independent_spdif_locked > 0) {
2033 if (dmabuf->enable != CODEC_SPDIFOUT_RUNNING
2034 || file->f_flags & O_NONBLOCK)
2036 if ((val = drain_spdifout(state, 1)))
2039 if (controller_independent_spdif_locked > 0) {
2040 if (dmabuf->enable !=
2041 CONTROLLER_SPDIFOUT_RUNNING
2042 || file->f_flags & O_NONBLOCK)
2044 if ((val = drain_spdifout(state, 1)))
2047 if (dmabuf->enable != DAC_RUNNING
2048 || file->f_flags & O_NONBLOCK)
2050 if ((val = drain_dac(state, 1)))
2054 dmabuf->total_bytes = 0;
2056 case SNDCTL_DSP_SPEED: /* set smaple rate */
2058 printk("SNDCTL_DSP_SPEED\n");
2060 if (get_user(val, p))
2063 if (file->f_mode & FMODE_WRITE) {
2064 if ((state->card->ac97_status & SPDIF_ON)) { /* S/PDIF Enabled */
2065 /* RELTEK ALC650 only support 48000, need to check that */
2066 if (ali_valid_spdif_rate(codec, val)) {
2067 if (codec_independent_spdif_locked > 0) {
2068 ali_set_spdif_output(state, -1, 0);
2069 stop_spdifout(state);
2071 /* I add test codec independent spdif out */
2072 spin_lock_irqsave(&state->card->lock, flags);
2073 ali_set_codecspdifout_rate(state, val); // I modified
2074 spin_unlock_irqrestore(&state->card->lock, flags);
2075 /* Set S/PDIF transmitter rate. */
2076 i_scr = inl(state->card->iobase + ALI_SCR);
2077 if ((i_scr & 0x00300000) == 0x00100000) {
2078 ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked);
2080 if ((i_scr&0x00300000) == 0x00200000)
2082 ali_set_spdif_output(state, AC97_EA_SPSA_6_9, codec_independent_spdif_locked);
2084 if ((i_scr & 0x00300000) == 0x00300000) {
2085 ali_set_spdif_output(state, AC97_EA_SPSA_10_11, codec_independent_spdif_locked);
2087 ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked);
2092 if (!(state->card->ac97_status & SPDIF_ON)) {
2096 if (controller_independent_spdif_locked > 0)
2098 stop_spdifout(state);
2100 spin_lock_irqsave(&state->card->lock, flags);
2101 ali_set_spdifout_rate(state, controller_independent_spdif_locked);
2102 spin_unlock_irqrestore(&state->card->lock, flags);
2105 ali_set_spdif_output(state, -1, 0);
2108 spin_lock_irqsave(&state->card->lock, flags);
2109 ali_set_dac_rate(state, val);
2110 spin_unlock_irqrestore(&state->card->lock, flags);
2111 /* Set S/PDIF transmitter rate. */
2112 ali_set_spdif_output(state, AC97_EA_SPSA_3_4, val);
2113 if (!(state->card->ac97_status & SPDIF_ON))
2119 } else { /* Not a valid rate for S/PDIF, ignore it */
2125 spin_lock_irqsave(&state->card->lock, flags);
2126 ali_set_dac_rate(state, val);
2127 spin_unlock_irqrestore(&state->card->lock, flags);
2130 if (file->f_mode & FMODE_READ) {
2133 spin_lock_irqsave(&state->card->lock, flags);
2134 ali_set_adc_rate(state, val);
2135 spin_unlock_irqrestore(&state->card->lock, flags);
2138 return put_user(dmabuf->rate, p);
2139 case SNDCTL_DSP_STEREO: /* set stereo or mono channel */
2141 printk("SNDCTL_DSP_STEREO\n");
2143 if (dmabuf->enable & DAC_RUNNING) {
2146 if (dmabuf->enable & ADC_RUNNING) {
2149 if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) {
2150 stop_spdifout(state);
2152 if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) {
2153 stop_spdifout(state);
2155 return put_user(1, p);
2156 case SNDCTL_DSP_GETBLKSIZE:
2157 if (file->f_mode & FMODE_WRITE) {
2158 if (codec_independent_spdif_locked > 0) {
2159 if (!dmabuf->ready && (val = prog_dmabuf(state, 2)))
2162 if (controller_independent_spdif_locked > 0) {
2163 if (!dmabuf->ready && (val = prog_dmabuf(state, 3)))
2166 if (!dmabuf->ready && (val = prog_dmabuf(state, 0)))
2172 if (file->f_mode & FMODE_READ) {
2173 if (!dmabuf->ready && (val = prog_dmabuf(state, 1)))
2177 printk("SNDCTL_DSP_GETBLKSIZE %d\n", dmabuf->userfragsize);
2179 return put_user(dmabuf->userfragsize, p);
2180 case SNDCTL_DSP_GETFMTS: /* Returns a mask of supported sample format */
2182 printk("SNDCTL_DSP_GETFMTS\n");
2184 return put_user(AFMT_S16_LE, p);
2185 case SNDCTL_DSP_SETFMT: /* Select sample format */
2187 printk("SNDCTL_DSP_SETFMT\n");
2189 return put_user(AFMT_S16_LE, p);
2190 case SNDCTL_DSP_CHANNELS: // add support 4,6 channel
2192 printk("SNDCTL_DSP_CHANNELS\n");
2194 if (get_user(val, p))
2197 if (dmabuf->enable & DAC_RUNNING) {
2200 if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) {
2201 stop_spdifout(state);
2203 if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) {
2204 stop_spdifout(state);
2206 if (dmabuf->enable & ADC_RUNNING) {
2210 return put_user(state->card->channels, p);
2213 i_scr = inl(state->card->iobase + ALI_SCR);
2214 /* Current # of channels enabled */
2215 if (i_scr & 0x00000100)
2217 else if (i_scr & 0x00000200)
2222 case 2: /* 2 channels is always supported */
2223 if (codec_independent_spdif_locked > 0) {
2224 outl(((i_scr & 0xfffffcff) | 0x00100000), (state->card->iobase + ALI_SCR));
2226 outl((i_scr & 0xfffffcff), (state->card->iobase + ALI_SCR));
2227 /* Do we need to change mixer settings???? */
2229 case 4: /* Supported on some chipsets, better check first */
2230 if (codec_independent_spdif_locked > 0) {
2231 outl(((i_scr & 0xfffffcff) | 0x00000100 | 0x00200000), (state->card->iobase + ALI_SCR));
2233 outl(((i_scr & 0xfffffcff) | 0x00000100), (state->card->iobase + ALI_SCR));
2235 case 6: /* Supported on some chipsets, better check first */
2236 if (codec_independent_spdif_locked > 0) {
2237 outl(((i_scr & 0xfffffcff) | 0x00000200 | 0x00008000 | 0x00300000), (state->card->iobase + ALI_SCR));
2239 outl(((i_scr & 0xfffffcff) | 0x00000200 | 0x00008000), (state->card->iobase + ALI_SCR));
2241 default: /* nothing else is ever supported by the chipset */
2245 return put_user(val, p);
2246 case SNDCTL_DSP_POST: /* the user has sent all data and is notifying us */
2247 /* we update the swptr to the end of the last sg segment then return */
2249 printk("SNDCTL_DSP_POST\n");
2251 if (codec_independent_spdif_locked > 0) {
2252 if (!dmabuf->ready || (dmabuf->enable != CODEC_SPDIFOUT_RUNNING))
2255 if (controller_independent_spdif_locked > 0) {
2256 if (!dmabuf->ready || (dmabuf->enable != CONTROLLER_SPDIFOUT_RUNNING))
2259 if (!dmabuf->ready || (dmabuf->enable != DAC_RUNNING))
2263 if ((dmabuf->swptr % dmabuf->fragsize) != 0) {
2264 val = dmabuf->fragsize - (dmabuf->swptr % dmabuf->fragsize);
2265 dmabuf->swptr += val;
2266 dmabuf->count += val;
2269 case SNDCTL_DSP_SUBDIVIDE:
2270 if (dmabuf->subdivision)
2272 if (get_user(val, p))
2274 if (val != 1 && val != 2 && val != 4)
2277 printk("SNDCTL_DSP_SUBDIVIDE %d\n", val);
2279 dmabuf->subdivision = val;
2282 case SNDCTL_DSP_SETFRAGMENT:
2283 if (get_user(val, p))
2285 dmabuf->ossfragsize = 1 << (val & 0xffff);
2286 dmabuf->ossmaxfrags = (val >> 16) & 0xffff;
2287 if (!dmabuf->ossfragsize || !dmabuf->ossmaxfrags)
2290 * Bound the frag size into our allowed range of 256 - 4096
2292 if (dmabuf->ossfragsize < 256)
2293 dmabuf->ossfragsize = 256;
2294 else if (dmabuf->ossfragsize > 4096)
2295 dmabuf->ossfragsize = 4096;
2297 * The numfrags could be something reasonable, or it could
2298 * be 0xffff meaning "Give me as much as possible". So,
2299 * we check the numfrags * fragsize doesn't exceed our
2300 * 64k buffer limit, nor is it less than our 8k minimum.
2301 * If it fails either one of these checks, then adjust the
2302 * number of fragments, not the size of them. It's OK if
2303 * our number of fragments doesn't equal 32 or anything
2304 * like our hardware based number now since we are using
2305 * a different frag count for the hardware. Before we get
2306 * into this though, bound the maxfrags to avoid overflow
2307 * issues. A reasonable bound would be 64k / 256 since our
2308 * maximum buffer size is 64k and our minimum frag size is
2309 * 256. On the other end, our minimum buffer size is 8k and
2310 * our maximum frag size is 4k, so the lower bound should
2313 if (dmabuf->ossmaxfrags > 256)
2314 dmabuf->ossmaxfrags = 256;
2315 else if (dmabuf->ossmaxfrags < 2)
2316 dmabuf->ossmaxfrags = 2;
2317 val = dmabuf->ossfragsize * dmabuf->ossmaxfrags;
2318 while (val < 8192) {
2320 dmabuf->ossmaxfrags <<= 1;
2322 while (val > 65536) {
2324 dmabuf->ossmaxfrags >>= 1;
2328 printk("SNDCTL_DSP_SETFRAGMENT 0x%x, %d, %d\n", val,
2329 dmabuf->ossfragsize, dmabuf->ossmaxfrags);
2332 case SNDCTL_DSP_GETOSPACE:
2333 if (!(file->f_mode & FMODE_WRITE))
2335 if (codec_independent_spdif_locked > 0) {
2336 if (!dmabuf->ready && (val = prog_dmabuf(state, 2)) != 0)
2339 if (controller_independent_spdif_locked > 0) {
2340 if (!dmabuf->ready && (val = prog_dmabuf(state, 3)) != 0)
2343 if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0)
2347 spin_lock_irqsave(&state->card->lock, flags);
2348 ali_update_ptr(state);
2349 abinfo.fragsize = dmabuf->userfragsize;
2350 abinfo.fragstotal = dmabuf->userfrags;
2352 abinfo.bytes = dmabuf->dmasize;
2354 abinfo.bytes = ali_get_free_write_space(state);
2355 abinfo.fragments = abinfo.bytes / dmabuf->userfragsize;
2356 spin_unlock_irqrestore(&state->card->lock, flags);
2357 #if defined(DEBUG) || defined(DEBUG_MMAP)
2358 printk("SNDCTL_DSP_GETOSPACE %d, %d, %d, %d\n",
2359 abinfo.bytes, abinfo.fragsize, abinfo.fragments,
2362 return copy_to_user(argp, &abinfo,
2363 sizeof(abinfo)) ? -EFAULT : 0;
2364 case SNDCTL_DSP_GETOPTR:
2365 if (!(file->f_mode & FMODE_WRITE))
2367 if (codec_independent_spdif_locked > 0) {
2368 if (!dmabuf->ready && (val = prog_dmabuf(state, 2)) != 0)
2371 if (controller_independent_spdif_locked > 0) {
2372 if (!dmabuf->ready && (val = prog_dmabuf(state, 3)) != 0)
2375 if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0)
2379 spin_lock_irqsave(&state->card->lock, flags);
2380 val = ali_get_free_write_space(state);
2381 cinfo.bytes = dmabuf->total_bytes;
2382 cinfo.ptr = dmabuf->hwptr;
2383 cinfo.blocks = val / dmabuf->userfragsize;
2384 if (codec_independent_spdif_locked > 0) {
2385 if (dmabuf->mapped && (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) {
2386 dmabuf->count += val;
2387 dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize;
2388 __ali_update_lvi(state, 2);
2391 if (controller_independent_spdif_locked > 0) {
2392 if (dmabuf->mapped && (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) {
2393 dmabuf->count += val;
2394 dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize;
2395 __ali_update_lvi(state, 3);
2398 if (dmabuf->mapped && (dmabuf->trigger & PCM_ENABLE_OUTPUT)) {
2399 dmabuf->count += val;
2400 dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize;
2401 __ali_update_lvi(state, 0);
2405 spin_unlock_irqrestore(&state->card->lock, flags);
2406 #if defined(DEBUG) || defined(DEBUG_MMAP)
2407 printk("SNDCTL_DSP_GETOPTR %d, %d, %d, %d\n", cinfo.bytes,
2408 cinfo.blocks, cinfo.ptr, dmabuf->count);
2410 return copy_to_user(argp, &cinfo, sizeof(cinfo))? -EFAULT : 0;
2411 case SNDCTL_DSP_GETISPACE:
2412 if (!(file->f_mode & FMODE_READ))
2414 if (!dmabuf->ready && (val = prog_dmabuf(state, 1)) != 0)
2416 spin_lock_irqsave(&state->card->lock, flags);
2417 abinfo.bytes = ali_get_available_read_data(state);
2418 abinfo.fragsize = dmabuf->userfragsize;
2419 abinfo.fragstotal = dmabuf->userfrags;
2420 abinfo.fragments = abinfo.bytes / dmabuf->userfragsize;
2421 spin_unlock_irqrestore(&state->card->lock, flags);
2422 #if defined(DEBUG) || defined(DEBUG_MMAP)
2423 printk("SNDCTL_DSP_GETISPACE %d, %d, %d, %d\n",
2424 abinfo.bytes, abinfo.fragsize, abinfo.fragments,
2427 return copy_to_user(argp, &abinfo,
2428 sizeof(abinfo)) ? -EFAULT : 0;
2429 case SNDCTL_DSP_GETIPTR:
2430 if (!(file->f_mode & FMODE_READ))
2432 if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0)
2434 spin_lock_irqsave(&state->card->lock, flags);
2435 val = ali_get_available_read_data(state);
2436 cinfo.bytes = dmabuf->total_bytes;
2437 cinfo.blocks = val / dmabuf->userfragsize;
2438 cinfo.ptr = dmabuf->hwptr;
2439 if (dmabuf->mapped && (dmabuf->trigger & PCM_ENABLE_INPUT)) {
2440 dmabuf->count -= val;
2441 dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize;
2442 __ali_update_lvi(state, 1);
2444 spin_unlock_irqrestore(&state->card->lock, flags);
2445 #if defined(DEBUG) || defined(DEBUG_MMAP)
2446 printk("SNDCTL_DSP_GETIPTR %d, %d, %d, %d\n", cinfo.bytes,
2447 cinfo.blocks, cinfo.ptr, dmabuf->count);
2449 return copy_to_user(argp, &cinfo, sizeof(cinfo))? -EFAULT: 0;
2450 case SNDCTL_DSP_NONBLOCK:
2452 printk("SNDCTL_DSP_NONBLOCK\n");
2454 file->f_flags |= O_NONBLOCK;
2456 case SNDCTL_DSP_GETCAPS:
2458 printk("SNDCTL_DSP_GETCAPS\n");
2460 return put_user(DSP_CAP_REALTIME | DSP_CAP_TRIGGER |
2461 DSP_CAP_MMAP | DSP_CAP_BIND, p);
2462 case SNDCTL_DSP_GETTRIGGER:
2465 printk("SNDCTL_DSP_GETTRIGGER 0x%x\n", dmabuf->trigger);
2467 return put_user(dmabuf->trigger, p);
2468 case SNDCTL_DSP_SETTRIGGER:
2469 if (get_user(val, p))
2471 #if defined(DEBUG) || defined(DEBUG_MMAP)
2472 printk("SNDCTL_DSP_SETTRIGGER 0x%x\n", val);
2474 if (!(val & PCM_ENABLE_INPUT) && dmabuf->enable == ADC_RUNNING) {
2477 if (!(val & PCM_ENABLE_OUTPUT) && dmabuf->enable == DAC_RUNNING) {
2480 if (!(val & SPDIF_ENABLE_OUTPUT) && dmabuf->enable == CODEC_SPDIFOUT_RUNNING) {
2481 stop_spdifout(state);
2483 if (!(val & SPDIF_ENABLE_OUTPUT) && dmabuf->enable == CONTROLLER_SPDIFOUT_RUNNING) {
2484 stop_spdifout(state);
2486 dmabuf->trigger = val;
2487 if (val & PCM_ENABLE_OUTPUT && !(dmabuf->enable & DAC_RUNNING)) {
2488 if (!dmabuf->write_channel) {
2490 dmabuf->write_channel = state->card->alloc_pcm_channel(state->card);
2491 if (!dmabuf->write_channel)
2494 if (!dmabuf->ready && (ret = prog_dmabuf(state, 0)))
2496 if (dmabuf->mapped) {
2497 spin_lock_irqsave(&state->card->lock, flags);
2498 ali_update_ptr(state);
2500 dmabuf->swptr = dmabuf->hwptr;
2501 dmabuf->count = ali_get_free_write_space(state);
2502 dmabuf->swptr = (dmabuf->swptr + dmabuf->count) % dmabuf->dmasize;
2503 __ali_update_lvi(state, 0);
2504 spin_unlock_irqrestore(&state->card->lock,
2509 if (val & SPDIF_ENABLE_OUTPUT && !(dmabuf->enable & CODEC_SPDIFOUT_RUNNING)) {
2510 if (!dmabuf->codec_spdifout_channel) {
2512 dmabuf->codec_spdifout_channel = state->card->alloc_codec_spdifout_channel(state->card);
2513 if (!dmabuf->codec_spdifout_channel)
2516 if (!dmabuf->ready && (ret = prog_dmabuf(state, 2)))
2518 if (dmabuf->mapped) {
2519 spin_lock_irqsave(&state->card->lock, flags);
2520 ali_update_ptr(state);
2522 dmabuf->swptr = dmabuf->hwptr;
2523 dmabuf->count = ali_get_free_write_space(state);
2524 dmabuf->swptr = (dmabuf->swptr + dmabuf->count) % dmabuf->dmasize;
2525 __ali_update_lvi(state, 2);
2526 spin_unlock_irqrestore(&state->card->lock,
2529 start_spdifout(state);
2531 if (val & SPDIF_ENABLE_OUTPUT && !(dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)) {
2532 if (!dmabuf->controller_spdifout_channel) {
2534 dmabuf->controller_spdifout_channel = state->card->alloc_controller_spdifout_channel(state->card);
2535 if (!dmabuf->controller_spdifout_channel)
2538 if (!dmabuf->ready && (ret = prog_dmabuf(state, 3)))
2540 if (dmabuf->mapped) {
2541 spin_lock_irqsave(&state->card->lock, flags);
2542 ali_update_ptr(state);
2544 dmabuf->swptr = dmabuf->hwptr;
2545 dmabuf->count = ali_get_free_write_space(state);
2546 dmabuf->swptr = (dmabuf->swptr + dmabuf->count) % dmabuf->dmasize;
2547 __ali_update_lvi(state, 3);
2548 spin_unlock_irqrestore(&state->card->lock, flags);
2550 start_spdifout(state);
2552 if (val & PCM_ENABLE_INPUT && !(dmabuf->enable & ADC_RUNNING)) {
2553 if (!dmabuf->read_channel) {
2555 dmabuf->read_channel = state->card->alloc_rec_pcm_channel(state->card);
2556 if (!dmabuf->read_channel)
2559 if (!dmabuf->ready && (ret = prog_dmabuf(state, 1)))
2561 if (dmabuf->mapped) {
2562 spin_lock_irqsave(&state->card->lock,
2564 ali_update_ptr(state);
2565 dmabuf->swptr = dmabuf->hwptr;
2567 spin_unlock_irqrestore(&state->card->lock, flags);
2569 ali_update_lvi(state, 1);
2573 case SNDCTL_DSP_SETDUPLEX:
2575 printk("SNDCTL_DSP_SETDUPLEX\n");
2578 case SNDCTL_DSP_GETODELAY:
2579 if (!(file->f_mode & FMODE_WRITE))
2581 spin_lock_irqsave(&state->card->lock, flags);
2582 ali_update_ptr(state);
2583 val = dmabuf->count;
2584 spin_unlock_irqrestore(&state->card->lock, flags);
2586 printk("SNDCTL_DSP_GETODELAY %d\n", dmabuf->count);
2588 return put_user(val, p);
2589 case SOUND_PCM_READ_RATE:
2591 printk("SOUND_PCM_READ_RATE %d\n", dmabuf->rate);
2593 return put_user(dmabuf->rate, p);
2594 case SOUND_PCM_READ_CHANNELS:
2596 printk("SOUND_PCM_READ_CHANNELS\n");
2598 return put_user(2, p);
2599 case SOUND_PCM_READ_BITS:
2601 printk("SOUND_PCM_READ_BITS\n");
2603 return put_user(AFMT_S16_LE, p);
2604 case SNDCTL_DSP_SETSPDIF: /* Set S/PDIF Control register */
2606 printk("SNDCTL_DSP_SETSPDIF\n");
2608 if (get_user(val, p))
2610 /* Check to make sure the codec supports S/PDIF transmitter */
2611 if ((state->card->ac97_features & 4)) {
2612 /* mask out the transmitter speed bits so the user can't set them */
2614 /* Add the current transmitter speed bits to the passed value */
2615 ret = ali_ac97_get(codec, AC97_SPDIF_CONTROL);
2616 val |= (ret & 0x3000);
2617 ali_ac97_set(codec, AC97_SPDIF_CONTROL, val);
2618 if (ali_ac97_get(codec, AC97_SPDIF_CONTROL) != val) {
2619 printk(KERN_ERR "ali_audio: Unable to set S/PDIF configuration to 0x%04x.\n", val);
2625 printk(KERN_WARNING "ali_audio: S/PDIF transmitter not avalible.\n");
2627 return put_user(val, p);
2628 case SNDCTL_DSP_GETSPDIF: /* Get S/PDIF Control register */
2630 printk("SNDCTL_DSP_GETSPDIF\n");
2632 if (get_user(val, p))
2634 /* Check to make sure the codec supports S/PDIF transmitter */
2635 if (!(state->card->ac97_features & 4)) {
2637 printk(KERN_WARNING "ali_audio: S/PDIF transmitter not avalible.\n");
2641 val = ali_ac97_get(codec, AC97_SPDIF_CONTROL);
2644 return put_user(val, p);
2645 //end add support spdif out
2646 //add support 4,6 channel
2647 case SNDCTL_DSP_GETCHANNELMASK:
2649 printk("SNDCTL_DSP_GETCHANNELMASK\n");
2651 if (get_user(val, p))
2653 /* Based on AC'97 DAC support, not ICH hardware */
2654 val = DSP_BIND_FRONT;
2655 if (state->card->ac97_features & 0x0004)
2656 val |= DSP_BIND_SPDIF;
2657 if (state->card->ac97_features & 0x0080)
2658 val |= DSP_BIND_SURR;
2659 if (state->card->ac97_features & 0x0140)
2660 val |= DSP_BIND_CENTER_LFE;
2661 return put_user(val, p);
2662 case SNDCTL_DSP_BIND_CHANNEL:
2664 printk("SNDCTL_DSP_BIND_CHANNEL\n");
2666 if (get_user(val, p))
2668 if (val == DSP_BIND_QUERY) {
2669 val = DSP_BIND_FRONT; /* Always report this as being enabled */
2670 if (state->card->ac97_status & SPDIF_ON)
2671 val |= DSP_BIND_SPDIF;
2673 if (state->card->ac97_status & SURR_ON)
2674 val |= DSP_BIND_SURR;
2676 ac97_status & CENTER_LFE_ON)
2677 val |= DSP_BIND_CENTER_LFE;
2679 } else { /* Not a query, set it */
2680 if (!(file->f_mode & FMODE_WRITE))
2682 if (dmabuf->enable == DAC_RUNNING) {
2685 if (val & DSP_BIND_SPDIF) { /* Turn on SPDIF */
2686 /* Ok, this should probably define what slots
2687 * to use. For now, we'll only set it to the
2690 * non multichannel codec maps to slots 3&4
2691 * 2 channel codec maps to slots 7&8
2692 * 4 channel codec maps to slots 6&9
2693 * 6 channel codec maps to slots 10&11
2695 * there should be some way for the app to
2696 * select the slot assignment.
2698 i_scr = inl(state->card->iobase + ALI_SCR);
2699 if (codec_independent_spdif_locked > 0) {
2701 if ((i_scr & 0x00300000) == 0x00100000) {
2702 ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked);
2704 if ((i_scr & 0x00300000) == 0x00200000) {
2705 ali_set_spdif_output(state, AC97_EA_SPSA_6_9, codec_independent_spdif_locked);
2707 if ((i_scr & 0x00300000) == 0x00300000) {
2708 ali_set_spdif_output(state, AC97_EA_SPSA_10_11, codec_independent_spdif_locked);
2712 } else { /* codec spdif out (pcm out share ) */
2713 ali_set_spdif_output(state, AC97_EA_SPSA_3_4, dmabuf->rate); //I do not modify
2716 if (!(state->card->ac97_status & SPDIF_ON))
2717 val &= ~DSP_BIND_SPDIF;
2721 /* Turn off S/PDIF if it was on */
2722 if (state->card->ac97_status & SPDIF_ON)
2723 ali_set_spdif_output(state, -1, 0);
2725 val & (DSP_BIND_FRONT | DSP_BIND_SURR |
2726 DSP_BIND_CENTER_LFE);
2728 case DSP_BIND_FRONT:
2731 case DSP_BIND_FRONT | DSP_BIND_SURR:
2734 case DSP_BIND_FRONT | DSP_BIND_SURR | DSP_BIND_CENTER_LFE:
2738 val = DSP_BIND_FRONT;
2742 ali_set_dac_channels(state, channels);
2743 /* check that they really got turned on */
2744 if (!state->card->ac97_status & SURR_ON)
2745 val &= ~DSP_BIND_SURR;
2747 ac97_status & CENTER_LFE_ON)
2748 val &= ~DSP_BIND_CENTER_LFE;
2751 return put_user(val, p);
2752 case SNDCTL_DSP_MAPINBUF:
2753 case SNDCTL_DSP_MAPOUTBUF:
2754 case SNDCTL_DSP_SETSYNCRO:
2755 case SOUND_PCM_WRITE_FILTER:
2756 case SOUND_PCM_READ_FILTER:
2762 static int ali_open(struct inode *inode, struct file *file)
2765 struct ali_card *card = devs;
2766 struct ali_state *state = NULL;
2767 struct dmabuf *dmabuf = NULL;
2770 /* find an available virtual channel (instance of /dev/dsp) */
2772 while (card != NULL) {
2775 * If we are initializing and then fail, card could go
2776 * away unuexpectedly while we are in the for() loop.
2777 * So, check for card on each iteration before we check
2778 * for card->initializing to avoid a possible oops.
2779 * This usually only matters for times when the driver is
2780 * autoloaded by kmod.
2782 for (i = 0; i < 50 && card && card->initializing; i++) {
2783 set_current_state(TASK_UNINTERRUPTIBLE);
2784 schedule_timeout(HZ / 20);
2787 for (i = 0; i < NR_HW_CH && card && !card->initializing; i++) {
2788 if (card->states[i] == NULL) {
2789 state = card->states[i] = (struct ali_state *) kmalloc(sizeof(struct ali_state), GFP_KERNEL);
2792 memset(state, 0, sizeof(struct ali_state));
2793 dmabuf = &state->dmabuf;
2800 /* no more virtual channel avaiable */
2804 /* initialize the virtual channel */
2808 state->magic = ALI5455_STATE_MAGIC;
2809 init_waitqueue_head(&dmabuf->wait);
2810 init_MUTEX(&state->open_sem);
2811 file->private_data = state;
2812 dmabuf->trigger = 0;
2813 /* allocate hardware channels */
2814 if (file->f_mode & FMODE_READ) {
2815 if ((dmabuf->read_channel =
2816 card->alloc_rec_pcm_channel(card)) == NULL) {
2817 kfree(card->states[i]);
2818 card->states[i] = NULL;
2821 dmabuf->trigger |= PCM_ENABLE_INPUT;
2822 ali_set_adc_rate(state, 8000);
2824 if (file->f_mode & FMODE_WRITE) {
2825 if (codec_independent_spdif_locked > 0) {
2826 if ((dmabuf->codec_spdifout_channel = card->alloc_codec_spdifout_channel(card)) == NULL) {
2827 kfree(card->states[i]);
2828 card->states[i] = NULL;
2831 dmabuf->trigger |= SPDIF_ENABLE_OUTPUT;
2832 ali_set_codecspdifout_rate(state, codec_independent_spdif_locked); //It must add
2833 i_scr = inl(state->card->iobase + ALI_SCR);
2834 if ((i_scr & 0x00300000) == 0x00100000) {
2835 ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked);
2837 if ((i_scr & 0x00300000) == 0x00200000) {
2838 ali_set_spdif_output(state, AC97_EA_SPSA_6_9, codec_independent_spdif_locked);
2840 if ((i_scr & 0x00300000) == 0x00300000) {
2841 ali_set_spdif_output(state, AC97_EA_SPSA_10_11, codec_independent_spdif_locked);
2843 ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked);
2849 if (controller_independent_spdif_locked > 0) {
2850 if ((dmabuf->controller_spdifout_channel = card->alloc_controller_spdifout_channel(card)) == NULL) {
2851 kfree(card->states[i]);
2852 card->states[i] = NULL;
2855 dmabuf->trigger |= SPDIF_ENABLE_OUTPUT;
2856 ali_set_spdifout_rate(state, controller_independent_spdif_locked);
2858 if ((dmabuf->write_channel = card->alloc_pcm_channel(card)) == NULL) {
2859 kfree(card->states[i]);
2860 card->states[i] = NULL;
2863 /* Initialize to 8kHz? What if we don't support 8kHz? */
2864 /* Let's change this to check for S/PDIF stuff */
2866 dmabuf->trigger |= PCM_ENABLE_OUTPUT;
2867 if (codec_pcmout_share_spdif_locked) {
2868 ali_set_dac_rate(state, codec_pcmout_share_spdif_locked);
2869 ali_set_spdif_output(state, AC97_EA_SPSA_3_4, codec_pcmout_share_spdif_locked);
2871 ali_set_dac_rate(state, 8000);
2878 /* set default sample format. According to OSS Programmer's Guide /dev/dsp
2879 should be default to unsigned 8-bits, mono, with sample rate 8kHz and
2880 /dev/dspW will accept 16-bits sample, but we don't support those so we
2881 set it immediately to stereo and 16bit, which is all we do support */
2882 dmabuf->fmt |= ALI5455_FMT_16BIT | ALI5455_FMT_STEREO;
2883 dmabuf->ossfragsize = 0;
2884 dmabuf->ossmaxfrags = 0;
2885 dmabuf->subdivision = 0;
2886 state->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
2887 outl(0x00000000, card->iobase + ALI_INTERRUPTCR);
2888 outl(0x00000000, card->iobase + ALI_INTERRUPTSR);
2889 return nonseekable_open(inode, file);
2892 static int ali_release(struct inode *inode, struct file *file)
2894 struct ali_state *state = (struct ali_state *) file->private_data;
2895 struct ali_card *card = state->card;
2896 struct dmabuf *dmabuf = &state->dmabuf;
2897 unsigned long flags;
2900 /* stop DMA state machine and free DMA buffers/channels */
2901 if (dmabuf->trigger & PCM_ENABLE_OUTPUT)
2902 drain_dac(state, 0);
2904 if (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)
2905 drain_spdifout(state, 0);
2907 if (dmabuf->trigger & PCM_ENABLE_INPUT)
2910 spin_lock_irqsave(&card->lock, flags);
2911 dealloc_dmabuf(state);
2912 if (file->f_mode & FMODE_WRITE) {
2913 if (codec_independent_spdif_locked > 0) {
2914 state->card->free_pcm_channel(state->card, dmabuf->codec_spdifout_channel->num);
2916 if (controller_independent_spdif_locked > 0)
2917 state->card->free_pcm_channel(state->card,
2918 dmabuf->controller_spdifout_channel->num);
2919 else state->card->free_pcm_channel(state->card,
2920 dmabuf->write_channel->num);
2923 if (file->f_mode & FMODE_READ)
2924 state->card->free_pcm_channel(state->card, dmabuf->read_channel->num);
2926 state->card->states[state->virt] = NULL;
2928 spin_unlock_irqrestore(&card->lock, flags);
2933 static /*const */ struct file_operations ali_audio_fops = {
2934 .owner = THIS_MODULE,
2935 .llseek = no_llseek,
2942 .release = ali_release,
2945 /* Read AC97 codec registers */
2946 static u16 ali_ac97_get(struct ac97_codec *dev, u8 reg)
2948 struct ali_card *card = dev->private_data;
2951 unsigned short int data = 0, count, addr1, addr2 = 0;
2953 spin_lock(&card->ac97_lock);
2954 while (count1-- && (inl(card->iobase + ALI_CAS) & 0x80000000))
2959 for (count = 0; count < 0x7f; count++) {
2960 val = inb(card->iobase + ALI_CSPSR);
2966 spin_unlock(&card->ac97_lock);
2969 outw(reg, (card->iobase + ALI_CPR) + 2);
2970 for (count = 0; count < 0x7f; count++) {
2971 val = inb(card->iobase + ALI_CSPSR);
2973 data = inw(card->iobase + ALI_SPR);
2974 addr2 = inw((card->iobase + ALI_SPR) + 2);
2978 spin_unlock(&card->ac97_lock);
2983 return ((u16) data);
2986 /* write ac97 codec register */
2988 static void ali_ac97_set(struct ac97_codec *dev, u8 reg, u16 data)
2990 struct ali_card *card = dev->private_data;
2993 unsigned short int count;
2995 spin_lock(&card->ac97_lock);
2996 while (count1-- && (inl(card->iobase + ALI_CAS) & 0x80000000))
2999 for (count = 0; count < 0x7f; count++) {
3000 val = inb(card->iobase + ALI_CSPSR);
3004 if (count == 0x7f) {
3005 printk(KERN_WARNING "ali_ac97_set: AC97 codec register access timed out. \n");
3006 spin_unlock(&card->ac97_lock);
3009 outw(data, (card->iobase + ALI_CPR));
3010 outb(reg, (card->iobase + ALI_CPR) + 2);
3011 for (count = 0; count < 0x7f; count++) {
3012 val = inb(card->iobase + ALI_CSPSR);
3016 spin_unlock(&card->ac97_lock);
3018 printk(KERN_WARNING "ali_ac97_set: AC97 codec register access timed out. \n");
3022 /* OSS /dev/mixer file operation methods */
3024 static int ali_open_mixdev(struct inode *inode, struct file *file)
3027 int minor = iminor(inode);
3028 struct ali_card *card = devs;
3029 for (card = devs; card != NULL; card = card->next) {
3031 * If we are initializing and then fail, card could go
3032 * away unuexpectedly while we are in the for() loop.
3033 * So, check for card on each iteration before we check
3034 * for card->initializing to avoid a possible oops.
3035 * This usually only matters for times when the driver is
3036 * autoloaded by kmod.
3038 for (i = 0; i < 50 && card && card->initializing; i++) {
3039 set_current_state(TASK_UNINTERRUPTIBLE);
3040 schedule_timeout(HZ / 20);
3042 for (i = 0; i < NR_AC97 && card && !card->initializing; i++)
3043 if (card->ac97_codec[i] != NULL
3044 && card->ac97_codec[i]->dev_mixer == minor) {
3045 file->private_data = card->ac97_codec[i];
3046 return nonseekable_open(inode, file);
3052 static int ali_ioctl_mixdev(struct inode *inode,
3054 unsigned int cmd, unsigned long arg)
3056 struct ac97_codec *codec = (struct ac97_codec *) file->private_data;
3057 return codec->mixer_ioctl(codec, cmd, arg);
3060 static /*const */ struct file_operations ali_mixer_fops = {
3061 .owner = THIS_MODULE,
3062 .llseek = no_llseek,
3063 .ioctl = ali_ioctl_mixdev,
3064 .open = ali_open_mixdev,
3067 /* AC97 codec initialisation. These small functions exist so we don't
3068 duplicate code between module init and apm resume */
3070 static inline int ali_ac97_exists(struct ali_card *card, int ac97_number)
3073 u32 reg = inl(card->iobase + ALI_RTSR);
3077 reg = inl(card->iobase + ALI_RTSR);
3081 outl(reg | 0x00000040,
3082 card->iobase + 0x34);
3090 reg = inl(card->iobase + ALI_RTSR);
3094 outl(reg | 0x00000080,
3095 card->iobase + 0x34);
3108 static inline int ali_ac97_enable_variable_rate(struct ac97_codec *codec)
3110 ali_ac97_set(codec, AC97_EXTENDED_STATUS, 9);
3111 ali_ac97_set(codec, AC97_EXTENDED_STATUS, ali_ac97_get(codec, AC97_EXTENDED_STATUS) | 0xE800);
3112 return (ali_ac97_get(codec, AC97_EXTENDED_STATUS) & 1);
3116 static int ali_ac97_probe_and_powerup(struct ali_card *card, struct ac97_codec *codec)
3118 /* Returns 0 on failure */
3121 if (ac97_probe_codec(codec) == 0)
3123 /* ac97_probe_codec is success ,then begin to init codec */
3124 ali_ac97_set(codec, AC97_RESET, 0xffff);
3125 if (card->channel[0].used == 1) {
3126 ali_ac97_set(codec, AC97_RECORD_SELECT, 0x0000);
3127 ali_ac97_set(codec, AC97_LINEIN_VOL, 0x0808);
3128 ali_ac97_set(codec, AC97_RECORD_GAIN, 0x0F0F);
3131 if (card->channel[2].used == 1) //if MICin then init codec
3133 ali_ac97_set(codec, AC97_RECORD_SELECT, 0x0000);
3134 ali_ac97_set(codec, AC97_MIC_VOL, 0x8808);
3135 ali_ac97_set(codec, AC97_RECORD_GAIN, 0x0F0F);
3136 ali_ac97_set(codec, AC97_RECORD_GAIN_MIC, 0x0000);
3139 ali_ac97_set(codec, AC97_MASTER_VOL_STEREO, 0x0000);
3140 ali_ac97_set(codec, AC97_HEADPHONE_VOL, 0x0000);
3141 ali_ac97_set(codec, AC97_PCMOUT_VOL, 0x0000);
3142 ali_ac97_set(codec, AC97_CD_VOL, 0x0808);
3143 ali_ac97_set(codec, AC97_VIDEO_VOL, 0x0808);
3144 ali_ac97_set(codec, AC97_AUX_VOL, 0x0808);
3145 ali_ac97_set(codec, AC97_PHONE_VOL, 0x8048);
3146 ali_ac97_set(codec, AC97_PCBEEP_VOL, 0x0000);
3147 ali_ac97_set(codec, AC97_GENERAL_PURPOSE, AC97_GP_MIX);
3148 ali_ac97_set(codec, AC97_MASTER_VOL_MONO, 0x0000);
3149 ali_ac97_set(codec, 0x38, 0x0000);
3150 addr = ali_ac97_get(codec, 0x2a);
3151 ali_ac97_set(codec, 0x2a, addr | 0x0001);
3152 addr = ali_ac97_get(codec, 0x2a);
3153 addr = ali_ac97_get(codec, 0x28);
3154 ali_ac97_set(codec, 0x2c, 0xbb80);
3155 addr = ali_ac97_get(codec, 0x2c);
3156 /* power it all up */
3157 ali_ac97_set(codec, AC97_POWER_CONTROL,
3158 ali_ac97_get(codec, AC97_POWER_CONTROL) & ~0x7f00);
3159 /* wait for analog ready */
3160 for (i = 10; i && ((ali_ac97_get(codec, AC97_POWER_CONTROL) & 0xf) != 0xf); i--) {
3161 set_current_state(TASK_UNINTERRUPTIBLE);
3162 schedule_timeout(HZ / 20);
3170 /* I clone ali5455(2.4.7 ) not clone i810_audio(2.4.18) */
3172 static int ali_reset_5455(struct ali_card *card)
3174 outl(0x80000003, card->iobase + ALI_SCR);
3175 outl(0x83838383, card->iobase + ALI_FIFOCR1);
3176 outl(0x83838383, card->iobase + ALI_FIFOCR2);
3177 if (controller_pcmout_share_spdif_locked > 0) {
3178 outl((inl(card->iobase + ALI_SPDIFICS) | 0x00000001),
3179 card->iobase + ALI_SPDIFICS);
3180 outl(0x0408000a, card->iobase + ALI_INTERFACECR);
3182 if (codec_independent_spdif_locked > 0) {
3183 outl((inl(card->iobase + ALI_SCR) | 0x00100000), card->iobase + ALI_SCR); // now I select slot 7 & 8
3184 outl(0x00200000, card->iobase + ALI_INTERFACECR); //enable codec independent spdifout
3186 outl(0x04080002, card->iobase + ALI_INTERFACECR);
3189 outl(0x00000000, card->iobase + ALI_INTERRUPTCR);
3190 outl(0x00000000, card->iobase + ALI_INTERRUPTSR);
3191 if (controller_independent_spdif_locked > 0)
3192 outl((inl(card->iobase + ALI_SPDIFICS) | 0x00000001),
3193 card->iobase + ALI_SPDIFICS);
3198 static int ali_ac97_random_init_stuff(struct ali_card
3201 u32 reg = inl(card->iobase + ALI_SCR);
3203 reg = inl(card->iobase + ALI_SCR);
3204 if ((reg & 2) == 0) /* Cold required */
3207 reg |= 1; /* Warm */
3208 reg &= ~0x80000000; /* ACLink on */
3209 outl(reg, card->iobase + ALI_SCR);
3212 if ((inl(card->iobase + 0x18) & (1 << 1)) == 0)
3214 current->state = TASK_UNINTERRUPTIBLE;
3215 schedule_timeout(HZ / 20);
3219 printk(KERN_ERR "ali_audio: AC'97 reset failed.\n");
3223 set_current_state(TASK_UNINTERRUPTIBLE);
3224 schedule_timeout(HZ / 2);
3228 /* AC97 codec initialisation. */
3230 static int __devinit ali_ac97_init(struct ali_card *card)
3233 int total_channels = 0;
3234 struct ac97_codec *codec;
3237 if (!ali_ac97_random_init_stuff(card))
3240 /* Number of channels supported */
3241 /* What about the codec? Just because the ICH supports */
3242 /* multiple channels doesn't mean the codec does. */
3243 /* we'll have to modify this in the codec section below */
3244 /* to reflect what the codec has. */
3245 /* ICH and ICH0 only support 2 channels so don't bother */
3247 inl(card->iobase + ALI_CPR);
3250 for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
3252 /* Assume codec isn't available until we go through the
3254 card->ac97_codec[num_ac97] = NULL;
3255 /* The ICH programmer's reference says you should */
3256 /* check the ready status before probing. So we chk */
3257 /* What do we do if it's not ready? Wait and try */
3258 /* again, or abort? */
3259 if (!ali_ac97_exists(card, num_ac97)) {
3261 printk(KERN_ERR "ali_audio: Primary codec not ready.\n");
3265 if ((codec = ac97_alloc_codec()) == NULL)
3267 /* initialize some basic codec information, other fields will be filled
3268 in ac97_probe_codec */
3269 codec->private_data = card;
3270 codec->id = num_ac97;
3271 codec->codec_read = ali_ac97_get;
3272 codec->codec_write = ali_ac97_set;
3273 if (!ali_ac97_probe_and_powerup(card, codec)) {
3274 printk(KERN_ERR "ali_audio: timed out waiting for codec %d analog ready",
3277 break; /* it didn't work */
3280 /* Store state information about S/PDIF transmitter */
3281 card->ac97_status = 0;
3282 /* Don't attempt to get eid until powerup is complete */
3283 eid = ali_ac97_get(codec, AC97_EXTENDED_ID);
3284 if (eid == 0xFFFF) {
3285 printk(KERN_ERR "ali_audio: no codec attached ?\n");
3290 card->ac97_features = eid;
3291 /* Now check the codec for useful features to make up for
3292 the dumbness of the ali5455 hardware engine */
3293 if (!(eid & 0x0001))
3295 "ali_audio: only 48Khz playback available.\n");
3297 if (!ali_ac97_enable_variable_rate(codec)) {
3299 "ali_audio: Codec refused to allow VRA, using 48Khz only.\n");
3300 card->ac97_features &= ~1;
3304 /* Determine how many channels the codec(s) support */
3305 /* - The primary codec always supports 2 */
3306 /* - If the codec supports AMAP, surround DACs will */
3307 /* automaticlly get assigned to slots. */
3308 /* * Check for surround DACs and increment if */
3310 /* - Else check if the codec is revision 2.2 */
3311 /* * If surround DACs exist, assign them to slots */
3312 /* and increment channel count. */
3314 /* All of this only applies to ICH2 and above. ICH */
3315 /* and ICH0 only support 2 channels. ICH2 will only */
3316 /* support multiple codecs in a "split audio" config. */
3317 /* as described above. */
3319 /* TODO: Remove all the debugging messages! */
3321 if ((eid & 0xc000) == 0) /* primary codec */
3322 total_channels += 2;
3323 if ((codec->dev_mixer = register_sound_mixer(&ali_mixer_fops, -1)) < 0) {
3324 printk(KERN_ERR "ali_audio: couldn't register mixer!\n");
3328 card->ac97_codec[num_ac97] = codec;
3330 /* pick the minimum of channels supported by ICHx or codec(s) */
3331 card->channels = (card->channels > total_channels) ? total_channels : card->channels;
3335 static void __devinit ali_configure_clocking(void)
3337 struct ali_card *card;
3338 struct ali_state *state;
3339 struct dmabuf *dmabuf;
3340 unsigned int i, offset, new_offset;
3341 unsigned long flags;
3344 /* We could try to set the clocking for multiple cards, but can you even have
3345 * more than one ali in a machine? Besides, clocking is global, so unless
3346 * someone actually thinks more than one ali in a machine is possible and
3347 * decides to rewrite that little bit, setting the rate for more than one card
3348 * is a waste of time.
3351 state = card->states[0] = (struct ali_state *)
3352 kmalloc(sizeof(struct ali_state), GFP_KERNEL);
3355 memset(state, 0, sizeof(struct ali_state));
3356 dmabuf = &state->dmabuf;
3357 dmabuf->write_channel = card->alloc_pcm_channel(card);
3360 state->magic = ALI5455_STATE_MAGIC;
3361 init_waitqueue_head(&dmabuf->wait);
3362 init_MUTEX(&state->open_sem);
3363 dmabuf->fmt = ALI5455_FMT_STEREO | ALI5455_FMT_16BIT;
3364 dmabuf->trigger = PCM_ENABLE_OUTPUT;
3365 ali_set_dac_rate(state, 48000);
3366 if (prog_dmabuf(state, 0) != 0)
3367 goto config_out_nodmabuf;
3369 if (dmabuf->dmasize < 16384)
3372 dmabuf->count = dmabuf->dmasize;
3373 outb(31, card->iobase + dmabuf->write_channel->port + OFF_LVI);
3375 local_irq_save(flags);
3377 offset = ali_get_dma_addr(state, 0);
3379 new_offset = ali_get_dma_addr(state, 0);
3382 outb(2, card->iobase + dmabuf->write_channel->port + OFF_CR);
3383 local_irq_restore(flags);
3385 i = new_offset - offset;
3390 if (i > 48500 || i < 47500) {
3391 clocking = clocking * clocking / i;
3394 dealloc_dmabuf(state);
3395 config_out_nodmabuf:
3396 state->card->free_pcm_channel(state->card, state->dmabuf. write_channel->num);
3398 card->states[0] = NULL;
3402 /* install the driver, we do not allocate hardware channel nor DMA buffer now, they are defered
3403 until "ACCESS" time (in prog_dmabuf called by open/read/write/ioctl/mmap) */
3405 static int __devinit ali_probe(struct pci_dev *pci_dev,
3406 const struct pci_device_id *pci_id)
3408 struct ali_card *card;
3409 if (pci_enable_device(pci_dev))
3411 if (pci_set_dma_mask(pci_dev, ALI5455_DMA_MASK)) {
3412 printk(KERN_ERR "ali5455: architecture does not support"
3413 " 32bit PCI busmaster DMA\n");
3417 if ((card = kmalloc(sizeof(struct ali_card), GFP_KERNEL)) == NULL) {
3418 printk(KERN_ERR "ali_audio: out of memory\n");
3421 memset(card, 0, sizeof(*card));
3422 card->initializing = 1;
3423 card->iobase = pci_resource_start(pci_dev, 0);
3424 card->pci_dev = pci_dev;
3425 card->pci_id = pci_id->device;
3426 card->irq = pci_dev->irq;
3428 card->magic = ALI5455_CARD_MAGIC;
3430 card->pm_suspended = 0;
3432 spin_lock_init(&card->lock);
3433 spin_lock_init(&card->ac97_lock);
3435 pci_set_master(pci_dev);
3436 printk(KERN_INFO "ali: %s found at IO 0x%04lx, IRQ %d\n",
3437 card_names[pci_id->driver_data], card->iobase, card->irq);
3438 card->alloc_pcm_channel = ali_alloc_pcm_channel;
3439 card->alloc_rec_pcm_channel = ali_alloc_rec_pcm_channel;
3440 card->alloc_rec_mic_channel = ali_alloc_rec_mic_channel;
3441 card->alloc_codec_spdifout_channel = ali_alloc_codec_spdifout_channel;
3442 card->alloc_controller_spdifout_channel = ali_alloc_controller_spdifout_channel;
3443 card->free_pcm_channel = ali_free_pcm_channel;
3444 card->channel[0].offset = 0;
3445 card->channel[0].port = 0x40;
3446 card->channel[0].num = 0;
3447 card->channel[1].offset = 0;
3448 card->channel[1].port = 0x50;
3449 card->channel[1].num = 1;
3450 card->channel[2].offset = 0;
3451 card->channel[2].port = 0x60;
3452 card->channel[2].num = 2;
3453 card->channel[3].offset = 0;
3454 card->channel[3].port = 0x70;
3455 card->channel[3].num = 3;
3456 card->channel[4].offset = 0;
3457 card->channel[4].port = 0xb0;
3458 card->channel[4].num = 4;
3459 /* claim our iospace and irq */
3460 request_region(card->iobase, 256, card_names[pci_id->driver_data]);
3461 if (request_irq(card->irq, &ali_interrupt, SA_SHIRQ,
3462 card_names[pci_id->driver_data], card)) {
3463 printk(KERN_ERR "ali_audio: unable to allocate irq %d\n",
3465 release_region(card->iobase, 256);
3470 if (ali_reset_5455(card) <= 0) {
3471 unregister_sound_dsp(card->dev_audio);
3472 release_region(card->iobase, 256);
3473 free_irq(card->irq, card);
3478 /* initialize AC97 codec and register /dev/mixer */
3479 if (ali_ac97_init(card) < 0) {
3480 release_region(card->iobase, 256);
3481 free_irq(card->irq, card);
3486 pci_set_drvdata(pci_dev, card);
3488 if (clocking == 0) {
3490 ali_configure_clocking();
3493 /* register /dev/dsp */
3494 if ((card->dev_audio = register_sound_dsp(&ali_audio_fops, -1)) < 0) {
3496 printk(KERN_ERR"ali_audio: couldn't register DSP device!\n");
3497 release_region(card->iobase, 256);
3498 free_irq(card->irq, card);
3499 for (i = 0; i < NR_AC97; i++)
3500 if (card->ac97_codec[i] != NULL) {
3501 unregister_sound_mixer(card->ac97_codec[i]->dev_mixer);
3502 kfree(card->ac97_codec[i]);
3507 card->initializing = 0;
3511 static void __devexit ali_remove(struct pci_dev *pci_dev)
3514 struct ali_card *card = pci_get_drvdata(pci_dev);
3515 /* free hardware resources */
3516 free_irq(card->irq, devs);
3517 release_region(card->iobase, 256);
3518 /* unregister audio devices */
3519 for (i = 0; i < NR_AC97; i++)
3520 if (card->ac97_codec[i] != NULL) {
3521 unregister_sound_mixer(card->ac97_codec[i]->
3523 ac97_release_codec(card->ac97_codec[i]);
3524 card->ac97_codec[i] = NULL;
3526 unregister_sound_dsp(card->dev_audio);
3531 static int ali_pm_suspend(struct pci_dev *dev, u32 pm_state)
3533 struct ali_card *card = pci_get_drvdata(dev);
3534 struct ali_state *state;
3535 unsigned long flags;
3536 struct dmabuf *dmabuf;
3541 spin_lock_irqsave(&card->lock, flags);
3542 card->pm_suspended = 1;
3543 for (i = 0; i < NR_HW_CH; i++) {
3544 state = card->states[i];
3547 /* this happens only if there are open files */
3548 dmabuf = &state->dmabuf;
3549 if (dmabuf->enable & DAC_RUNNING ||
3551 && (dmabuf->trigger & PCM_ENABLE_OUTPUT))) {
3552 state->pm_saved_dac_rate = dmabuf->rate;
3555 state->pm_saved_dac_rate = 0;
3557 if (dmabuf->enable & ADC_RUNNING) {
3558 state->pm_saved_adc_rate = dmabuf->rate;
3561 state->pm_saved_adc_rate = 0;
3564 dmabuf->swptr = dmabuf->hwptr = 0;
3565 dmabuf->count = dmabuf->total_bytes = 0;
3568 spin_unlock_irqrestore(&card->lock, flags);
3569 /* save mixer settings */
3570 for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
3571 struct ac97_codec *codec = card->ac97_codec[num_ac97];
3574 for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
3575 if ((supported_mixer(codec, i)) && (codec->read_mixer)) {
3576 card->pm_saved_mixer_settings[i][num_ac97] = codec->read_mixer(codec, i);
3580 pci_save_state(dev, card->pm_save_state); /* XXX do we need this? */
3581 pci_disable_device(dev); /* disable busmastering */
3582 pci_set_power_state(dev, 3); /* Zzz. */
3587 static int ali_pm_resume(struct pci_dev *dev)
3589 int num_ac97, i = 0;
3590 struct ali_card *card = pci_get_drvdata(dev);
3591 pci_enable_device(dev);
3592 pci_restore_state(dev, card->pm_save_state);
3593 /* observation of a toshiba portege 3440ct suggests that the
3594 hardware has to be more or less completely reinitialized from
3595 scratch after an apm suspend. Works For Me. -dan */
3596 ali_ac97_random_init_stuff(card);
3597 for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
3598 struct ac97_codec *codec = card->ac97_codec[num_ac97];
3599 /* check they haven't stolen the hardware while we were
3601 if (!codec || !ali_ac97_exists(card, num_ac97)) {
3607 if (!ali_ac97_probe_and_powerup(card, codec))
3609 if ((card->ac97_features & 0x0001)) {
3610 /* at probe time we found we could do variable
3611 rates, but APM suspend has made it forget
3612 its magical powers */
3613 if (!ali_ac97_enable_variable_rate(codec))
3616 /* we lost our mixer settings, so restore them */
3617 for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
3618 if (supported_mixer(codec, i)) {
3619 int val = card->pm_saved_mixer_settings[i][num_ac97];
3620 codec->mixer_state[i] = val;
3621 codec->write_mixer(codec, i,
3623 ((val >> 8) & 0xff));
3628 /* we need to restore the sample rate from whatever it was */
3629 for (i = 0; i < NR_HW_CH; i++) {
3630 struct ali_state *state = card->states[i];
3632 if (state->pm_saved_adc_rate)
3633 ali_set_adc_rate(state, state->pm_saved_adc_rate);
3634 if (state->pm_saved_dac_rate)
3635 ali_set_dac_rate(state, state->pm_saved_dac_rate);
3639 card->pm_suspended = 0;
3640 /* any processes that were reading/writing during the suspend
3641 probably ended up here */
3642 for (i = 0; i < NR_HW_CH; i++) {
3643 struct ali_state *state = card->states[i];
3645 wake_up(&state->dmabuf.wait);
3649 #endif /* CONFIG_PM */
3652 MODULE_DESCRIPTION("ALI 5455 audio support");
3653 MODULE_LICENSE("GPL");
3654 MODULE_PARM(clocking, "i");
3655 MODULE_PARM(strict_clocking, "i");
3656 MODULE_PARM(codec_pcmout_share_spdif_locked, "i");
3657 MODULE_PARM(codec_independent_spdif_locked, "i");
3658 MODULE_PARM(controller_pcmout_share_spdif_locked, "i");
3659 MODULE_PARM(controller_independent_spdif_locked, "i");
3660 #define ALI5455_MODULE_NAME "ali5455"
3661 static struct pci_driver ali_pci_driver = {
3662 .name = ALI5455_MODULE_NAME,
3663 .id_table = ali_pci_tbl,
3665 .remove = __devexit_p(ali_remove),
3667 .suspend = ali_pm_suspend,
3668 .resume = ali_pm_resume,
3669 #endif /* CONFIG_PM */
3672 static int __init ali_init_module(void)
3674 printk(KERN_INFO "ALI 5455 + AC97 Audio, version "
3675 DRIVER_VERSION ", " __TIME__ " " __DATE__ "\n");
3677 if (codec_independent_spdif_locked > 0) {
3678 if (codec_independent_spdif_locked == 32000
3679 || codec_independent_spdif_locked == 44100
3680 || codec_independent_spdif_locked == 48000) {
3681 printk(KERN_INFO "ali_audio: Enabling S/PDIF at sample rate %dHz.\n", codec_independent_spdif_locked);
3683 printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n");
3684 codec_independent_spdif_locked = 0;
3687 if (controller_independent_spdif_locked > 0) {
3688 if (controller_independent_spdif_locked == 32000
3689 || controller_independent_spdif_locked == 44100
3690 || controller_independent_spdif_locked == 48000) {
3691 printk(KERN_INFO "ali_audio: Enabling S/PDIF at sample rate %dHz.\n", controller_independent_spdif_locked);
3693 printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n");
3694 controller_independent_spdif_locked = 0;
3698 if (codec_pcmout_share_spdif_locked > 0) {
3699 if (codec_pcmout_share_spdif_locked == 32000
3700 || codec_pcmout_share_spdif_locked == 44100
3701 || codec_pcmout_share_spdif_locked == 48000) {
3702 printk(KERN_INFO "ali_audio: Enabling S/PDIF at sample rate %dHz.\n", codec_pcmout_share_spdif_locked);
3704 printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n");
3705 codec_pcmout_share_spdif_locked = 0;
3708 if (controller_pcmout_share_spdif_locked > 0) {
3709 if (controller_pcmout_share_spdif_locked == 32000
3710 || controller_pcmout_share_spdif_locked == 44100
3711 || controller_pcmout_share_spdif_locked == 48000) {
3712 printk(KERN_INFO "ali_audio: Enabling controller S/PDIF at sample rate %dHz.\n", controller_pcmout_share_spdif_locked);
3714 printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n");
3715 controller_pcmout_share_spdif_locked = 0;
3718 if (!pci_register_driver(&ali_pci_driver)) {
3719 pci_unregister_driver(&ali_pci_driver);
3725 static void __exit ali_cleanup_module(void)
3727 pci_unregister_driver(&ali_pci_driver);
3730 module_init(ali_init_module);
3731 module_exit(ali_cleanup_module);