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Diffstat (limited to 'sound/oss/ali5455.c')
| -rw-r--r-- | sound/oss/ali5455.c | 3735 |
1 files changed, 0 insertions, 3735 deletions
diff --git a/sound/oss/ali5455.c b/sound/oss/ali5455.c deleted file mode 100644 index 70dcd70..0000000 --- a/sound/oss/ali5455.c +++ /dev/null @@ -1,3735 +0,0 @@ -/* - * ALI ali5455 and friends ICH driver for Linux - * LEI HU <Lei_Hu@ali.com.tw> - * - * Built from: - * drivers/sound/i810_audio - * - * The ALi 5455 is similar but not quite identical to the Intel ICH - * series of controllers. Its easier to keep the driver separated from - * the i810 driver. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - * - * ALi 5455 theory of operation - * - * The chipset provides three DMA channels that talk to an AC97 - * CODEC (AC97 is a digital/analog mixer standard). At its simplest - * you get 48Khz audio with basic volume and mixer controls. At the - * best you get rate adaption in the codec. We set the card up so - * that we never take completion interrupts but instead keep the card - * chasing its tail around a ring buffer. This is needed for mmap - * mode audio and happens to work rather well for non-mmap modes too. - * - * The board has one output channel for PCM audio (supported) and - * a stereo line in and mono microphone input. Again these are normally - * locked to 48Khz only. Right now recording is not finished. - * - * There is no midi support, no synth support. Use timidity. To get - * esd working you need to use esd -r 48000 as it won't probe 48KHz - * by default. mpg123 can't handle 48Khz only audio so use xmms. - * - * If you need to force a specific rate set the clocking= option - * - */ - -#include <linux/module.h> -#include <linux/string.h> -#include <linux/ctype.h> -#include <linux/ioport.h> -#include <linux/sched.h> -#include <linux/delay.h> -#include <linux/sound.h> -#include <linux/slab.h> -#include <linux/soundcard.h> -#include <linux/pci.h> -#include <asm/io.h> -#include <asm/dma.h> -#include <linux/init.h> -#include <linux/poll.h> -#include <linux/spinlock.h> -#include <linux/smp_lock.h> -#include <linux/ac97_codec.h> -#include <linux/interrupt.h> -#include <linux/mutex.h> - -#include <asm/uaccess.h> - -#ifndef PCI_DEVICE_ID_ALI_5455 -#define PCI_DEVICE_ID_ALI_5455 0x5455 -#endif - -#ifndef PCI_VENDOR_ID_ALI -#define PCI_VENDOR_ID_ALI 0x10b9 -#endif - -static int strict_clocking = 0; -static unsigned int clocking = 0; -static unsigned int codec_pcmout_share_spdif_locked = 0; -static unsigned int codec_independent_spdif_locked = 0; -static unsigned int controller_pcmout_share_spdif_locked = 0; -static unsigned int controller_independent_spdif_locked = 0; -static unsigned int globel = 0; - -#define ADC_RUNNING 1 -#define DAC_RUNNING 2 -#define CODEC_SPDIFOUT_RUNNING 8 -#define CONTROLLER_SPDIFOUT_RUNNING 4 - -#define SPDIF_ENABLE_OUTPUT 4 /* bits 0,1 are PCM */ - -#define ALI5455_FMT_16BIT 1 -#define ALI5455_FMT_STEREO 2 -#define ALI5455_FMT_MASK 3 - -#define SPDIF_ON 0x0004 -#define SURR_ON 0x0010 -#define CENTER_LFE_ON 0x0020 -#define VOL_MUTED 0x8000 - - -#define ALI_SPDIF_OUT_CH_STATUS 0xbf -/* the 810's array of pointers to data buffers */ - -struct sg_item { -#define BUSADDR_MASK 0xFFFFFFFE - u32 busaddr; -#define CON_IOC 0x80000000 /* interrupt on completion */ -#define CON_BUFPAD 0x40000000 /* pad underrun with last sample, else 0 */ -#define CON_BUFLEN_MASK 0x0000ffff /* buffer length in samples */ - u32 control; -}; - -/* an instance of the ali channel */ -#define SG_LEN 32 -struct ali_channel { - /* these sg guys should probably be allocated - separately as nocache. Must be 8 byte aligned */ - struct sg_item sg[SG_LEN]; /* 32*8 */ - u32 offset; /* 4 */ - u32 port; /* 4 */ - u32 used; - u32 num; -}; - -/* - * we have 3 separate dma engines. pcm in, pcm out, and mic. - * each dma engine has controlling registers. These goofy - * names are from the datasheet, but make it easy to write - * code while leafing through it. - */ - -#define ENUM_ENGINE(PRE,DIG) \ -enum { \ - PRE##_BDBAR = 0x##DIG##0, /* Buffer Descriptor list Base Address */ \ - PRE##_CIV = 0x##DIG##4, /* Current Index Value */ \ - PRE##_LVI = 0x##DIG##5, /* Last Valid Index */ \ - PRE##_SR = 0x##DIG##6, /* Status Register */ \ - PRE##_PICB = 0x##DIG##8, /* Position In Current Buffer */ \ - PRE##_CR = 0x##DIG##b /* Control Register */ \ -} - -ENUM_ENGINE(OFF, 0); /* Offsets */ -ENUM_ENGINE(PI, 4); /* PCM In */ -ENUM_ENGINE(PO, 5); /* PCM Out */ -ENUM_ENGINE(MC, 6); /* Mic In */ -ENUM_ENGINE(CODECSPDIFOUT, 7); /* CODEC SPDIF OUT */ -ENUM_ENGINE(CONTROLLERSPDIFIN, A); /* CONTROLLER SPDIF In */ -ENUM_ENGINE(CONTROLLERSPDIFOUT, B); /* CONTROLLER SPDIF OUT */ - - -enum { - ALI_SCR = 0x00, /* System Control Register */ - ALI_SSR = 0x04, /* System Status Register */ - ALI_DMACR = 0x08, /* DMA Control Register */ - ALI_FIFOCR1 = 0x0c, /* FIFO Control Register 1 */ - ALI_INTERFACECR = 0x10, /* Interface Control Register */ - ALI_INTERRUPTCR = 0x14, /* Interrupt control Register */ - ALI_INTERRUPTSR = 0x18, /* Interrupt Status Register */ - ALI_FIFOCR2 = 0x1c, /* FIFO Control Register 2 */ - ALI_CPR = 0x20, /* Command Port Register */ - ALI_SPR = 0x24, /* Status Port Register */ - ALI_FIFOCR3 = 0x2c, /* FIFO Control Register 3 */ - ALI_TTSR = 0x30, /* Transmit Tag Slot Register */ - ALI_RTSR = 0x34, /* Receive Tag Slot Register */ - ALI_CSPSR = 0x38, /* Command/Status Port Status Register */ - ALI_CAS = 0x3c, /* Codec Write Semaphore Register */ - ALI_SPDIFCSR = 0xf8, /* spdif channel status register */ - ALI_SPDIFICS = 0xfc /* spdif interface control/status */ -}; - -// x-status register(x:pcm in ,pcm out, mic in,) -/* interrupts for a dma engine */ -#define DMA_INT_FIFO (1<<4) /* fifo under/over flow */ -#define DMA_INT_COMPLETE (1<<3) /* buffer read/write complete and ioc set */ -#define DMA_INT_LVI (1<<2) /* last valid done */ -#define DMA_INT_CELV (1<<1) /* last valid is current */ -#define DMA_INT_DCH (1) /* DMA Controller Halted (happens on LVI interrupts) */ //not eqult intel -#define DMA_INT_MASK (DMA_INT_FIFO|DMA_INT_COMPLETE|DMA_INT_LVI) - -/* interrupts for the whole chip */// by interrupt status register finish - -#define INT_SPDIFOUT (1<<23) /* controller spdif out INTERRUPT */ -#define INT_SPDIFIN (1<<22) -#define INT_CODECSPDIFOUT (1<<19) -#define INT_MICIN (1<<18) -#define INT_PCMOUT (1<<17) -#define INT_PCMIN (1<<16) -#define INT_CPRAIS (1<<7) -#define INT_SPRAIS (1<<5) -#define INT_GPIO (1<<1) -#define INT_MASK (INT_SPDIFOUT|INT_CODECSPDIFOUT|INT_MICIN|INT_PCMOUT|INT_PCMIN) - -#define DRIVER_VERSION "0.02ac" - -/* magic numbers to protect our data structures */ -#define ALI5455_CARD_MAGIC 0x5072696E /* "Prin" */ -#define ALI5455_STATE_MAGIC 0x63657373 /* "cess" */ -#define ALI5455_DMA_MASK 0xffffffff /* DMA buffer mask for pci_alloc_consist */ -#define NR_HW_CH 5 //I think 5 channel - -/* maxinum number of AC97 codecs connected, AC97 2.0 defined 4 */ -#define NR_AC97 2 - -/* Please note that an 8bit mono stream is not valid on this card, you must have a 16bit */ -/* stream at a minimum for this card to be happy */ -static const unsigned sample_size[] = { 1, 2, 2, 4 }; -/* Samples are 16bit values, so we are shifting to a word, not to a byte, hence shift */ -/* values are one less than might be expected */ -static const unsigned sample_shift[] = { -1, 0, 0, 1 }; - -#define ALI5455 -static char *card_names[] = { - "ALI 5455" -}; - -static struct pci_device_id ali_pci_tbl[] = { - {PCI_VENDOR_ID_ALI, PCI_DEVICE_ID_ALI_5455, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, ALI5455}, - {0,} -}; - -MODULE_DEVICE_TABLE(pci, ali_pci_tbl); - -#ifdef CONFIG_PM -#define PM_SUSPENDED(card) (card->pm_suspended) -#else -#define PM_SUSPENDED(card) (0) -#endif - -/* "software" or virtual channel, an instance of opened /dev/dsp */ -struct ali_state { - unsigned int magic; - struct ali_card *card; /* Card info */ - - /* single open lock mechanism, only used for recording */ - struct mutex open_mutex; - wait_queue_head_t open_wait; - - /* file mode */ - mode_t open_mode; - - /* virtual channel number */ - int virt; - -#ifdef CONFIG_PM - unsigned int pm_saved_dac_rate, pm_saved_adc_rate; -#endif - struct dmabuf { - /* wave sample stuff */ - unsigned int rate; - unsigned char fmt, enable, trigger; - - /* hardware channel */ - struct ali_channel *read_channel; - struct ali_channel *write_channel; - struct ali_channel *codec_spdifout_channel; - struct ali_channel *controller_spdifout_channel; - - /* OSS buffer management stuff */ - void *rawbuf; - dma_addr_t dma_handle; - unsigned buforder; - unsigned numfrag; - unsigned fragshift; - - /* our buffer acts like a circular ring */ - unsigned hwptr; /* where dma last started, updated by update_ptr */ - unsigned swptr; /* where driver last clear/filled, updated by read/write */ - int count; /* bytes to be consumed or been generated by dma machine */ - unsigned total_bytes; /* total bytes dmaed by hardware */ - - unsigned error; /* number of over/underruns */ - wait_queue_head_t wait; /* put process on wait queue when no more space in buffer */ - - /* redundant, but makes calculations easier */ - /* what the hardware uses */ - unsigned dmasize; - unsigned fragsize; - unsigned fragsamples; - - /* what we tell the user to expect */ - unsigned userfrags; - unsigned userfragsize; - - /* OSS stuff */ - unsigned mapped:1; - unsigned ready:1; - unsigned update_flag; - unsigned ossfragsize; - unsigned ossmaxfrags; - unsigned subdivision; - } dmabuf; -}; - - -struct ali_card { - struct ali_channel channel[5]; - unsigned int magic; - - /* We keep ali5455 cards in a linked list */ - struct ali_card *next; - - /* The ali has a certain amount of cross channel interaction - so we use a single per card lock */ - spinlock_t lock; - spinlock_t ac97_lock; - - /* PCI device stuff */ - struct pci_dev *pci_dev; - u16 pci_id; -#ifdef CONFIG_PM - u16 pm_suspended; - int pm_saved_mixer_settings[SOUND_MIXER_NRDEVICES][NR_AC97]; -#endif - /* soundcore stuff */ - int dev_audio; - - /* structures for abstraction of hardware facilities, codecs, banks and channels */ - struct ac97_codec *ac97_codec[NR_AC97]; - struct ali_state *states[NR_HW_CH]; - - u16 ac97_features; - u16 ac97_status; - u16 channels; - - /* hardware resources */ - unsigned long iobase; - - u32 irq; - - /* Function support */ - struct ali_channel *(*alloc_pcm_channel) (struct ali_card *); - struct ali_channel *(*alloc_rec_pcm_channel) (struct ali_card *); - struct ali_channel *(*alloc_rec_mic_channel) (struct ali_card *); - struct ali_channel *(*alloc_codec_spdifout_channel) (struct ali_card *); - struct ali_channel *(*alloc_controller_spdifout_channel) (struct ali_card *); - void (*free_pcm_channel) (struct ali_card *, int chan); - - /* We have a *very* long init time possibly, so use this to block */ - /* attempts to open our devices before we are ready (stops oops'es) */ - int initializing; -}; - - -static struct ali_card *devs = NULL; - -static int ali_open_mixdev(struct inode *inode, struct file *file); -static int ali_ioctl_mixdev(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg); -static u16 ali_ac97_get(struct ac97_codec *dev, u8 reg); -static void ali_ac97_set(struct ac97_codec *dev, u8 reg, u16 data); - -static struct ali_channel *ali_alloc_pcm_channel(struct ali_card *card) -{ - if (card->channel[1].used == 1) - return NULL; - card->channel[1].used = 1; - return &card->channel[1]; -} - -static struct ali_channel *ali_alloc_rec_pcm_channel(struct ali_card *card) -{ - if (card->channel[0].used == 1) - return NULL; - card->channel[0].used = 1; - return &card->channel[0]; -} - -static struct ali_channel *ali_alloc_rec_mic_channel(struct ali_card *card) -{ - if (card->channel[2].used == 1) - return NULL; - card->channel[2].used = 1; - return &card->channel[2]; -} - -static struct ali_channel *ali_alloc_codec_spdifout_channel(struct ali_card *card) -{ - if (card->channel[3].used == 1) - return NULL; - card->channel[3].used = 1; - return &card->channel[3]; -} - -static struct ali_channel *ali_alloc_controller_spdifout_channel(struct ali_card *card) -{ - if (card->channel[4].used == 1) - return NULL; - card->channel[4].used = 1; - return &card->channel[4]; -} -static void ali_free_pcm_channel(struct ali_card *card, int channel) -{ - card->channel[channel].used = 0; -} - - -//add support codec spdif out -static int ali_valid_spdif_rate(struct ac97_codec *codec, int rate) -{ - unsigned long id = 0L; - - id = (ali_ac97_get(codec, AC97_VENDOR_ID1) << 16); - id |= ali_ac97_get(codec, AC97_VENDOR_ID2) & 0xffff; - switch (id) { - case 0x41445361: /* AD1886 */ - if (rate == 48000) { - return 1; - } - break; - case 0x414c4720: /* ALC650 */ - if (rate == 48000) { - return 1; - } - break; - default: /* all other codecs, until we know otherwiae */ - if (rate == 48000 || rate == 44100 || rate == 32000) { - return 1; - } - break; - } - return (0); -} - -/* ali_set_spdif_output - * - * Configure the S/PDIF output transmitter. When we turn on - * S/PDIF, we turn off the analog output. This may not be - * the right thing to do. - * - * Assumptions: - * The DSP sample rate must already be set to a supported - * S/PDIF rate (32kHz, 44.1kHz, or 48kHz) or we abort. - */ -static void ali_set_spdif_output(struct ali_state *state, int slots, - int rate) -{ - int vol; - int aud_reg; - struct ac97_codec *codec = state->card->ac97_codec[0]; - - if (!(state->card->ac97_features & 4)) { - state->card->ac97_status &= ~SPDIF_ON; - } else { - if (slots == -1) { /* Turn off S/PDIF */ - aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS); - ali_ac97_set(codec, AC97_EXTENDED_STATUS, (aud_reg & ~AC97_EA_SPDIF)); - - /* If the volume wasn't muted before we turned on S/PDIF, unmute it */ - if (!(state->card->ac97_status & VOL_MUTED)) { - aud_reg = ali_ac97_get(codec, AC97_MASTER_VOL_STEREO); - ali_ac97_set(codec, AC97_MASTER_VOL_STEREO, - (aud_reg & ~VOL_MUTED)); - } - state->card->ac97_status &= ~(VOL_MUTED | SPDIF_ON); - return; - } - - vol = ali_ac97_get(codec, AC97_MASTER_VOL_STEREO); - state->card->ac97_status = vol & VOL_MUTED; - - /* Set S/PDIF transmitter sample rate */ - aud_reg = ali_ac97_get(codec, AC97_SPDIF_CONTROL); - switch (rate) { - case 32000: - aud_reg = (aud_reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_32K; - break; - case 44100: - aud_reg = (aud_reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_44K; - break; - case 48000: - aud_reg = (aud_reg & AC97_SC_SPSR_MASK) | AC97_SC_SPSR_48K; - break; - default: - /* turn off S/PDIF */ - aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS); - ali_ac97_set(codec, AC97_EXTENDED_STATUS, (aud_reg & ~AC97_EA_SPDIF)); - state->card->ac97_status &= ~SPDIF_ON; - return; - } - - ali_ac97_set(codec, AC97_SPDIF_CONTROL, aud_reg); - - aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS); - aud_reg = (aud_reg & AC97_EA_SLOT_MASK) | slots | AC97_EA_SPDIF; - ali_ac97_set(codec, AC97_EXTENDED_STATUS, aud_reg); - - aud_reg = ali_ac97_get(codec, AC97_POWER_CONTROL); - aud_reg |= 0x0002; - ali_ac97_set(codec, AC97_POWER_CONTROL, aud_reg); - udelay(1); - - state->card->ac97_status |= SPDIF_ON; - - /* Check to make sure the configuration is valid */ - aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS); - if (!(aud_reg & 0x0400)) { - /* turn off S/PDIF */ - ali_ac97_set(codec, AC97_EXTENDED_STATUS, (aud_reg & ~AC97_EA_SPDIF)); - state->card->ac97_status &= ~SPDIF_ON; - return; - } - if (codec_independent_spdif_locked > 0) { - aud_reg = ali_ac97_get(codec, 0x6a); - ali_ac97_set(codec, 0x6a, (aud_reg & 0xefff)); - } - /* Mute the analog output */ - /* Should this only mute the PCM volume??? */ - } -} - -/* ali_set_dac_channels - * - * Configure the codec's multi-channel DACs - * - * The logic is backwards. Setting the bit to 1 turns off the DAC. - * - * What about the ICH? We currently configure it using the - * SNDCTL_DSP_CHANNELS ioctl. If we're turnning on the DAC, - * does that imply that we want the ICH set to support - * these channels? - * - * TODO: - * vailidate that the codec really supports these DACs - * before turning them on. - */ -static void ali_set_dac_channels(struct ali_state *state, int channel) -{ - int aud_reg; - struct ac97_codec *codec = state->card->ac97_codec[0]; - - aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS); - aud_reg |= AC97_EA_PRI | AC97_EA_PRJ | AC97_EA_PRK; - state->card->ac97_status &= ~(SURR_ON | CENTER_LFE_ON); - - switch (channel) { - case 2: /* always enabled */ - break; - case 4: - aud_reg &= ~AC97_EA_PRJ; - state->card->ac97_status |= SURR_ON; - break; - case 6: - aud_reg &= ~(AC97_EA_PRJ | AC97_EA_PRI | AC97_EA_PRK); - state->card->ac97_status |= SURR_ON | CENTER_LFE_ON; - break; - default: - break; - } - ali_ac97_set(codec, AC97_EXTENDED_STATUS, aud_reg); - -} - -/* set playback sample rate */ -static unsigned int ali_set_dac_rate(struct ali_state *state, - unsigned int rate) -{ - struct dmabuf *dmabuf = &state->dmabuf; - u32 new_rate; - struct ac97_codec *codec = state->card->ac97_codec[0]; - - if (!(state->card->ac97_features & 0x0001)) { - dmabuf->rate = clocking; - return clocking; - } - - if (rate > 48000) - rate = 48000; - if (rate < 8000) - rate = 8000; - dmabuf->rate = rate; - - /* - * Adjust for misclocked crap - */ - - rate = (rate * clocking) / 48000; - - if (strict_clocking && rate < 8000) { - rate = 8000; - dmabuf->rate = (rate * 48000) / clocking; - } - - new_rate = ac97_set_dac_rate(codec, rate); - if (new_rate != rate) { - dmabuf->rate = (new_rate * 48000) / clocking; - } - rate = new_rate; - return dmabuf->rate; -} - -/* set recording sample rate */ -static unsigned int ali_set_adc_rate(struct ali_state *state, - unsigned int rate) -{ - struct dmabuf *dmabuf = &state->dmabuf; - u32 new_rate; - struct ac97_codec *codec = state->card->ac97_codec[0]; - - if (!(state->card->ac97_features & 0x0001)) { - dmabuf->rate = clocking; - return clocking; - } - - if (rate > 48000) - rate = 48000; - if (rate < 8000) - rate = 8000; - dmabuf->rate = rate; - - /* - * Adjust for misclocked crap - */ - - rate = (rate * clocking) / 48000; - if (strict_clocking && rate < 8000) { - rate = 8000; - dmabuf->rate = (rate * 48000) / clocking; - } - - new_rate = ac97_set_adc_rate(codec, rate); - - if (new_rate != rate) { - dmabuf->rate = (new_rate * 48000) / clocking; - rate = new_rate; - } - return dmabuf->rate; -} - -/* set codec independent spdifout sample rate */ -static unsigned int ali_set_codecspdifout_rate(struct ali_state *state, - unsigned int rate) -{ - struct dmabuf *dmabuf = &state->dmabuf; - - if (!(state->card->ac97_features & 0x0001)) { - dmabuf->rate = clocking; - return clocking; - } - - if (rate > 48000) - rate = 48000; - if (rate < 8000) - rate = 8000; - dmabuf->rate = rate; - - return dmabuf->rate; -} - -/* set controller independent spdif out function sample rate */ -static void ali_set_spdifout_rate(struct ali_state *state, - unsigned int rate) -{ - unsigned char ch_st_sel; - unsigned short status_rate; - - switch (rate) { - case 44100: - status_rate = 0; - break; - case 32000: - status_rate = 0x300; - break; - case 48000: - default: - status_rate = 0x200; - break; - } - - ch_st_sel = inb(state->card->iobase + ALI_SPDIFICS) & ALI_SPDIF_OUT_CH_STATUS; //select spdif_out - - ch_st_sel |= 0x80; //select right - outb(ch_st_sel, (state->card->iobase + ALI_SPDIFICS)); - outb(status_rate | 0x20, (state->card->iobase + ALI_SPDIFCSR + 2)); - - ch_st_sel &= (~0x80); //select left - outb(ch_st_sel, (state->card->iobase + ALI_SPDIFICS)); - outw(status_rate | 0x10, (state->card->iobase + ALI_SPDIFCSR + 2)); -} - -/* get current playback/recording dma buffer pointer (byte offset from LBA), - called with spinlock held! */ - -static inline unsigned ali_get_dma_addr(struct ali_state *state, int rec) -{ - struct dmabuf *dmabuf = &state->dmabuf; - unsigned int civ, offset, port, port_picb; - unsigned int data; - - if (!dmabuf->enable) - return 0; - - if (rec == 1) - port = state->card->iobase + dmabuf->read_channel->port; - else if (rec == 2) - port = state->card->iobase + dmabuf->codec_spdifout_channel->port; - else if (rec == 3) - port = state->card->iobase + dmabuf->controller_spdifout_channel->port; - else - port = state->card->iobase + dmabuf->write_channel->port; - - port_picb = port + OFF_PICB; - - do { - civ = inb(port + OFF_CIV) & 31; - offset = inw(port_picb); - /* Must have a delay here! */ - if (offset == 0) - udelay(1); - - /* Reread both registers and make sure that that total - * offset from the first reading to the second is 0. - * There is an issue with SiS hardware where it will count - * picb down to 0, then update civ to the next value, - * then set the new picb to fragsize bytes. We can catch - * it between the civ update and the picb update, making - * it look as though we are 1 fragsize ahead of where we - * are. The next to we get the address though, it will - * be back in thdelay is more than long enough - * that we won't have to worry about the chip still being - * out of sync with reality ;-) - */ - } while (civ != (inb(port + OFF_CIV) & 31) || offset != inw(port_picb)); - - data = ((civ + 1) * dmabuf->fragsize - (2 * offset)) % dmabuf->dmasize; - if (inw(port_picb) == 0) - data -= 2048; - - return data; -} - -/* Stop recording (lock held) */ -static inline void __stop_adc(struct ali_state *state) -{ - struct dmabuf *dmabuf = &state->dmabuf; - struct ali_card *card = state->card; - - dmabuf->enable &= ~ADC_RUNNING; - - outl((1 << 18) | (1 << 16), card->iobase + ALI_DMACR); - udelay(1); - - outb(0, card->iobase + PI_CR); - while (inb(card->iobase + PI_CR) != 0); - - // now clear any latent interrupt bits (like the halt bit) - outb(inb(card->iobase + PI_SR) | 0x001e, card->iobase + PI_SR); - outl(inl(card->iobase + ALI_INTERRUPTSR) & INT_PCMIN, card->iobase + ALI_INTERRUPTSR); -} - -static void stop_adc(struct ali_state *state) -{ - struct ali_card *card = state->card; - unsigned long flags; - spin_lock_irqsave(&card->lock, flags); - __stop_adc(state); - spin_unlock_irqrestore(&card->lock, flags); -} - -static inline void __start_adc(struct ali_state *state) -{ - struct dmabuf *dmabuf = &state->dmabuf; - - if (dmabuf->count < dmabuf->dmasize && dmabuf->ready - && !dmabuf->enable && (dmabuf->trigger & PCM_ENABLE_INPUT)) { - dmabuf->enable |= ADC_RUNNING; - outb((1 << 4) | (1 << 2), state->card->iobase + PI_CR); - if (state->card->channel[0].used == 1) - outl(1, state->card->iobase + ALI_DMACR); // DMA CONTROL REGISTRER - udelay(100); - if (state->card->channel[2].used == 1) - outl((1 << 2), state->card->iobase + ALI_DMACR); //DMA CONTROL REGISTER - udelay(100); - } -} - -static void start_adc(struct ali_state *state) -{ - struct ali_card *card = state->card; - unsigned long flags; - - spin_lock_irqsave(&card->lock, flags); - __start_adc(state); - spin_unlock_irqrestore(&card->lock, flags); -} - -/* stop playback (lock held) */ -static inline void __stop_dac(struct ali_state *state) -{ - struct dmabuf *dmabuf = &state->dmabuf; - struct ali_card *card = state->card; - - dmabuf->enable &= ~DAC_RUNNING; - outl(0x00020000, card->iobase + 0x08); - outb(0, card->iobase + PO_CR); - while (inb(card->iobase + PO_CR) != 0) - cpu_relax(); - - outb(inb(card->iobase + PO_SR) | 0x001e, card->iobase + PO_SR); - - outl(inl(card->iobase + ALI_INTERRUPTSR) & INT_PCMOUT, card->iobase + ALI_INTERRUPTSR); -} - -static void stop_dac(struct ali_state *state) -{ - struct ali_card *card = state->card; - unsigned long flags; - spin_lock_irqsave(&card->lock, flags); - __stop_dac(state); - spin_unlock_irqrestore(&card->lock, flags); -} - -static inline void __start_dac(struct ali_state *state) -{ - struct dmabuf *dmabuf = &state->dmabuf; - if (dmabuf->count > 0 && dmabuf->ready && !dmabuf->enable && - (dmabuf->trigger & PCM_ENABLE_OUTPUT)) { - dmabuf->enable |= DAC_RUNNING; - outb((1 << 4) | (1 << 2), state->card->iobase + PO_CR); - outl((1 << 1), state->card->iobase + 0x08); //dma control register - } -} - -static void start_dac(struct ali_state *state) -{ - struct ali_card *card = state->card; - unsigned long flags; - spin_lock_irqsave(&card->lock, flags); - __start_dac(state); - spin_unlock_irqrestore(&card->lock, flags); -} - -/* stop codec and controller spdif out (lock held) */ -static inline void __stop_spdifout(struct ali_state *state) -{ - struct dmabuf *dmabuf = &state->dmabuf; - struct ali_card *card = state->card; - - if (codec_independent_spdif_locked > 0) { - dmabuf->enable &= ~CODEC_SPDIFOUT_RUNNING; - outl((1 << 19), card->iobase + 0x08); - outb(0, card->iobase + CODECSPDIFOUT_CR); - - while (inb(card->iobase + CODECSPDIFOUT_CR) != 0) - cpu_relax(); - - outb(inb(card->iobase + CODECSPDIFOUT_SR) | 0x001e, card->iobase + CODECSPDIFOUT_SR); - outl(inl(card->iobase + ALI_INTERRUPTSR) & INT_CODECSPDIFOUT, card->iobase + ALI_INTERRUPTSR); - } else { - if (controller_independent_spdif_locked > 0) { - dmabuf->enable &= ~CONTROLLER_SPDIFOUT_RUNNING; - outl((1 << 23), card->iobase + 0x08); - outb(0, card->iobase + CONTROLLERSPDIFOUT_CR); - while (inb(card->iobase + CONTROLLERSPDIFOUT_CR) != 0) - cpu_relax(); - outb(inb(card->iobase + CONTROLLERSPDIFOUT_SR) | 0x001e, card->iobase + CONTROLLERSPDIFOUT_SR); - outl(inl(card->iobase + ALI_INTERRUPTSR) & INT_SPDIFOUT, card->iobase + ALI_INTERRUPTSR); - } - } -} - -static void stop_spdifout(struct ali_state *state) -{ - struct ali_card *card = state->card; - unsigned long flags; - spin_lock_irqsave(&card->lock, flags); - __stop_spdifout(state); - spin_unlock_irqrestore(&card->lock, flags); -} - -static inline void __start_spdifout(struct ali_state *state) -{ - struct dmabuf *dmabuf = &state->dmabuf; - if (dmabuf->count > 0 && dmabuf->ready && !dmabuf->enable && - (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) { - if (codec_independent_spdif_locked > 0) { - dmabuf->enable |= CODEC_SPDIFOUT_RUNNING; - outb((1 << 4) | (1 << 2), state->card->iobase + CODECSPDIFOUT_CR); - outl((1 << 3), state->card->iobase + 0x08); //dma control register - } else { - if (controller_independent_spdif_locked > 0) { - dmabuf->enable |= CONTROLLER_SPDIFOUT_RUNNING; - outb((1 << 4) | (1 << 2), state->card->iobase + CONTROLLERSPDIFOUT_CR); - outl((1 << 7), state->card->iobase + 0x08); //dma control register - } - } - } -} - -static void start_spdifout(struct ali_state *state) -{ - struct ali_card *card = state->card; - unsigned long flags; - spin_lock_irqsave(&card->lock, flags); - __start_spdifout(state); - spin_unlock_irqrestore(&card->lock, flags); -} - -#define DMABUF_DEFAULTORDER (16-PAGE_SHIFT) -#define DMABUF_MINORDER 1 - -/* allocate DMA buffer, playback , recording,spdif out buffer should be allocated separately */ -static int alloc_dmabuf(struct ali_state *state) -{ - struct dmabuf *dmabuf = &state->dmabuf; - void *rawbuf = NULL; - int order, size; - struct page *page, *pend; - - /* If we don't have any oss frag params, then use our default ones */ - if (dmabuf->ossmaxfrags == 0) - dmabuf->ossmaxfrags = 4; - if (dmabuf->ossfragsize == 0) - dmabuf->ossfragsize = (PAGE_SIZE << DMABUF_DEFAULTORDER) / dmabuf->ossmaxfrags; - size = dmabuf->ossfragsize * dmabuf->ossmaxfrags; - - if (dmabuf->rawbuf && (PAGE_SIZE << dmabuf->buforder) == size) - return 0; - /* alloc enough to satisfy the oss params */ - for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--) { - if ((PAGE_SIZE << order) > size) - continue; - if ((rawbuf = pci_alloc_consistent(state->card->pci_dev, - PAGE_SIZE << order, - &dmabuf->dma_handle))) - break; - } - if (!rawbuf) - return -ENOMEM; - - dmabuf->ready = dmabuf->mapped = 0; - dmabuf->rawbuf = rawbuf; - dmabuf->buforder = order; - - /* now mark the pages as reserved; otherwise remap_pfn_range doesn't do what we want */ - pend = virt_to_page(rawbuf + (PAGE_SIZE << order) - 1); - for (page = virt_to_page(rawbuf); page <= pend; page++) - SetPageReserved(page); - return 0; -} - -/* free DMA buffer */ -static void dealloc_dmabuf(struct ali_state *state) -{ - struct dmabuf *dmabuf = &state->dmabuf; - struct page *page, *pend; - - if (dmabuf->rawbuf) { - /* undo marking the pages as reserved */ - pend = virt_to_page(dmabuf->rawbuf + (PAGE_SIZE << dmabuf->buforder) - 1); - for (page = virt_to_page(dmabuf->rawbuf); page <= pend; page++) - ClearPageReserved(page); - pci_free_consistent(state->card->pci_dev, - PAGE_SIZE << dmabuf->buforder, - dmabuf->rawbuf, dmabuf->dma_handle); - } - dmabuf->rawbuf = NULL; - dmabuf->mapped = dmabuf->ready = 0; -} - -static int prog_dmabuf(struct ali_state *state, unsigned rec) -{ - struct dmabuf *dmabuf = &state->dmabuf; - struct ali_channel *c = NULL; - struct sg_item *sg; - unsigned long flags; - int ret; - unsigned fragint; - int i; - - spin_lock_irqsave(&state->card->lock, flags); - if (dmabuf->enable & DAC_RUNNING) - __stop_dac(state); - if (dmabuf->enable & ADC_RUNNING) - __stop_adc(state); - if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) - __stop_spdifout(state); - if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) - __stop_spdifout(state); - - dmabuf->total_bytes = 0; - dmabuf->count = dmabuf->error = 0; - dmabuf->swptr = dmabuf->hwptr = 0; - spin_unlock_irqrestore(&state->card->lock, flags); - - /* allocate DMA buffer, let alloc_dmabuf determine if we are already - * allocated well enough or if we should replace the current buffer - * (assuming one is already allocated, if it isn't, then allocate it). - */ - if ((ret = alloc_dmabuf(state))) - return ret; - - /* FIXME: figure out all this OSS fragment stuff */ - /* I did, it now does what it should according to the OSS API. DL */ - /* We may not have realloced our dmabuf, but the fragment size to - * fragment number ratio may have changed, so go ahead and reprogram - * things - */ - - dmabuf->dmasize = PAGE_SIZE << dmabuf->buforder; - dmabuf->numfrag = SG_LEN; - dmabuf->fragsize = dmabuf->dmasize / dmabuf->numfrag; - dmabuf->fragsamples = dmabuf->fragsize >> 1; - dmabuf->userfragsize = dmabuf->ossfragsize; - dmabuf->userfrags = dmabuf->dmasize / dmabuf->ossfragsize; - - memset(dmabuf->rawbuf, 0, dmabuf->dmasize); - - if (dmabuf->ossmaxfrags == 4) { - fragint = 8; - dmabuf->fragshift = 2; - } else if (dmabuf->ossmaxfrags == 8) { - fragint = 4; - dmabuf->fragshift = 3; - } else if (dmabuf->ossmaxfrags == 16) { - fragint = 2; - dmabuf->fragshift = 4; - } else { - fragint = 1; - dmabuf->fragshift = 5; - } - /* - * Now set up the ring - */ - - if (rec == 1) - c = dmabuf->read_channel; - else if (rec == 2) - c = dmabuf->codec_spdifout_channel; - else if (rec == 3) - c = dmabuf->controller_spdifout_channel; - else if (rec == 0) - c = dmabuf->write_channel; - if (c != NULL) { - sg = &c->sg[0]; - /* - * Load up 32 sg entries and take an interrupt at half - * way (we might want more interrupts later..) - */ - for (i = 0; i < dmabuf->numfrag; i++) { - sg->busaddr = - virt_to_bus(dmabuf->rawbuf + - dmabuf->fragsize * i); - // the card will always be doing 16bit stereo - sg->control = dmabuf->fragsamples; - sg->control |= CON_BUFPAD; //I modify - // set us up to get IOC interrupts as often as needed to - // satisfy numfrag requirements, no more - if (((i + 1) % fragint) == 0) { - sg->control |= CON_IOC; - } - sg++; - } - spin_lock_irqsave(&state->card->lock, flags); - outb(2, state->card->iobase + c->port + OFF_CR); /* reset DMA machine */ - outl(virt_to_bus(&c->sg[0]), state->card->iobase + c->port + OFF_BDBAR); - outb(0, state->card->iobase + c->port + OFF_CIV); - outb(0, state->card->iobase + c->port + OFF_LVI); - spin_unlock_irqrestore(&state->card->lock, flags); - } - /* set the ready flag for the dma buffer */ - dmabuf->ready = 1; - return 0; -} - -static void __ali_update_lvi(struct ali_state *state, int rec) -{ - struct dmabuf *dmabuf = &state->dmabuf; - int x, port; - port = state->card->iobase; - if (rec == 1) - port += dmabuf->read_channel->port; - else if (rec == 2) - port += dmabuf->codec_spdifout_channel->port; - else if (rec == 3) - port += dmabuf->controller_spdifout_channel->port; - else if (rec == 0) - port += dmabuf->write_channel->port; - /* if we are currently stopped, then our CIV is actually set to our - * *last* sg segment and we are ready to wrap to the next. However, - * if we set our LVI to the last sg segment, then it won't wrap to - * the next sg segment, it won't even get a start. So, instead, when - * we are stopped, we set both the LVI value and also we increment - * the CIV value to the next sg segment to be played so that when - * we call start_{dac,adc}, things will operate properly - */ - if (!dmabuf->enable && dmabuf->ready) { - if (rec && dmabuf->count < dmabuf->dmasize && (dmabuf->trigger & PCM_ENABLE_INPUT)) { - outb((inb(port + OFF_CIV) + 1) & 31, port + OFF_LVI); - __start_adc(state); - while (! (inb(port + OFF_CR) & ((1 << 4) | (1 << 2)))) - cpu_relax(); - } else if (!rec && dmabuf->count && (dmabuf->trigger & PCM_ENABLE_OUTPUT)) { - outb((inb(port + OFF_CIV) + 1) & 31, port + OFF_LVI); - __start_dac(state); - while (!(inb(port + OFF_CR) & ((1 << 4) | (1 << 2)))) - cpu_relax(); - } else if (rec && dmabuf->count && (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) { - if (codec_independent_spdif_locked > 0) { - // outb((inb(port+OFF_CIV))&31, port+OFF_LVI); - outb((inb(port + OFF_CIV) + 1) & 31, port + OFF_LVI); - __start_spdifout(state); - while (!(inb(port + OFF_CR) & ((1 << 4) | (1 << 2)))) - cpu_relax(); - } else { - if (controller_independent_spdif_locked > 0) { - outb((inb(port + OFF_CIV) + 1) & 31, port + OFF_LVI); - __start_spdifout(state); - while (!(inb(port + OFF_CR) & ((1 << 4) | (1 << 2)))) - cpu_relax(); - } - } - } - } - - /* swptr - 1 is the tail of our transfer */ - x = (dmabuf->dmasize + dmabuf->swptr - 1) % dmabuf->dmasize; - x /= dmabuf->fragsize; - outb(x, port + OFF_LVI); -} - -static void ali_update_lvi(struct ali_state *state, int rec) -{ - struct dmabuf *dmabuf = &state->dmabuf; - unsigned long flags; - if (!dmabuf->ready) - return; - spin_lock_irqsave(&state->card->lock, flags); - __ali_update_lvi(state, rec); - spin_unlock_irqrestore(&state->card->lock, flags); -} - -/* update buffer manangement pointers, especially, dmabuf->count and dmabuf->hwptr */ -static void ali_update_ptr(struct ali_state *state) -{ - struct dmabuf *dmabuf = &state->dmabuf; - unsigned hwptr; - int diff; - - /* error handling and process wake up for DAC */ - if (dmabuf->enable == ADC_RUNNING) { - /* update hardware pointer */ - hwptr = ali_get_dma_addr(state, 1); - diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize; - dmabuf->hwptr = hwptr; - dmabuf->total_bytes += diff; - dmabuf->count += diff; - if (dmabuf->count > dmabuf->dmasize) { - /* buffer underrun or buffer overrun */ - /* this is normal for the end of a read */ - /* only give an error if we went past the */ - /* last valid sg entry */ - if ((inb(state->card->iobase + PI_CIV) & 31) != (inb(state->card->iobase + PI_LVI) & 31)) { - printk(KERN_WARNING "ali_audio: DMA overrun on read\n"); - dmabuf->error++; - } - } - if (dmabuf->count > dmabuf->userfragsize) - wake_up(&dmabuf->wait); - } - /* error handling and process wake up for DAC */ - if (dmabuf->enable == DAC_RUNNING) { - /* update hardware pointer */ - hwptr = ali_get_dma_addr(state, 0); - diff = - (dmabuf->dmasize + hwptr - - dmabuf->hwptr) % dmabuf->dmasize; -#if defined(DEBUG_INTERRUPTS) || defined(DEBUG_MMAP) - printk("DAC HWP %d,%d,%d\n", hwptr, dmabuf->hwptr, diff); -#endif - dmabuf->hwptr = hwptr; - dmabuf->total_bytes += diff; - dmabuf->count -= diff; - if (dmabuf->count < 0) { - /* buffer underrun or buffer overrun */ - /* this is normal for the end of a write */ - /* only give an error if we went past the */ - /* last valid sg entry */ - if ((inb(state->card->iobase + PO_CIV) & 31) != (inb(state->card->iobase + PO_LVI) & 31)) { - printk(KERN_WARNING "ali_audio: DMA overrun on write\n"); - printk(KERN_DEBUG "ali_audio: CIV %d, LVI %d, hwptr %x, count %d\n", - inb(state->card->iobase + PO_CIV) & 31, - inb(state->card->iobase + PO_LVI) & 31, - dmabuf->hwptr, - dmabuf->count); - dmabuf->error++; - } - } - if (dmabuf->count < (dmabuf->dmasize - dmabuf->userfragsize)) - wake_up(&dmabuf->wait); - } - - /* error handling and process wake up for CODEC SPDIF OUT */ - if (dmabuf->enable == CODEC_SPDIFOUT_RUNNING) { - /* update hardware pointer */ - hwptr = ali_get_dma_addr(state, 2); - diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize; - dmabuf->hwptr = hwptr; - dmabuf->total_bytes += diff; - dmabuf->count -= diff; - if (dmabuf->count < 0) { - /* buffer underrun or buffer overrun */ - /* this is normal for the end of a write */ - /* only give an error if we went past the */ - /* last valid sg entry */ - if ((inb(state->card->iobase + CODECSPDIFOUT_CIV) & 31) != (inb(state->card->iobase + CODECSPDIFOUT_LVI) & 31)) { - printk(KERN_WARNING "ali_audio: DMA overrun on write\n"); - printk(KERN_DEBUG "ali_audio: CIV %d, LVI %d, hwptr %x, count %d\n", - inb(state->card->iobase + CODECSPDIFOUT_CIV) & 31, - inb(state->card->iobase + CODECSPDIFOUT_LVI) & 31, - dmabuf->hwptr, dmabuf->count); - dmabuf->error++; - } - } - if (dmabuf->count < (dmabuf->dmasize - dmabuf->userfragsize)) - wake_up(&dmabuf->wait); - } - /* error handling and process wake up for CONTROLLER SPDIF OUT */ - if (dmabuf->enable == CONTROLLER_SPDIFOUT_RUNNING) { - /* update hardware pointer */ - hwptr = ali_get_dma_addr(state, 3); - diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize; - dmabuf->hwptr = hwptr; - dmabuf->total_bytes += diff; - dmabuf->count -= diff; - if (dmabuf->count < 0) { - /* buffer underrun or buffer overrun */ - /* this is normal for the end of a write */ - /* only give an error if we went past the */ - /* last valid sg entry */ - if ((inb(state->card->iobase + CONTROLLERSPDIFOUT_CIV) & 31) != (inb(state->card->iobase + CONTROLLERSPDIFOUT_LVI) & 31)) { - printk(KERN_WARNING - "ali_audio: DMA overrun on write\n"); - printk("ali_audio: CIV %d, LVI %d, hwptr %x, " - "count %d\n", - inb(state->card->iobase + CONTROLLERSPDIFOUT_CIV) & 31, - inb(state->card->iobase + CONTROLLERSPDIFOUT_LVI) & 31, - dmabuf->hwptr, dmabuf->count); - dmabuf->error++; - } - } - if (dmabuf->count < (dmabuf->dmasize - dmabuf->userfragsize)) - wake_up(&dmabuf->wait); - } -} - -static inline int ali_get_free_write_space(struct - ali_state - *state) -{ - struct dmabuf *dmabuf = &state->dmabuf; - int free; - - if (dmabuf->count < 0) { - dmabuf->count = 0; - dmabuf->swptr = dmabuf->hwptr; - } - free = dmabuf->dmasize - dmabuf->swptr; - if ((dmabuf->count + free) > dmabuf->dmasize){ - free = dmabuf->dmasize - dmabuf->count; - } - return free; -} - -static inline int ali_get_available_read_data(struct - ali_state - *state) -{ - struct dmabuf *dmabuf = &state->dmabuf; - int avail; - ali_update_ptr(state); - // catch overruns during record - if (dmabuf->count > dmabuf->dmasize) { - dmabuf->count = dmabuf->dmasize; - dmabuf->swptr = dmabuf->hwptr; - } - avail = dmabuf->count; - avail -= (dmabuf->hwptr % dmabuf->fragsize); - if (avail < 0) - return (0); - return (avail); -} - -static int drain_dac(struct ali_state *state, int signals_allowed) -{ - - DECLARE_WAITQUEUE(wait, current); - struct dmabuf *dmabuf = &state->dmabuf; - unsigned long flags; - unsigned long tmo; - int count; - if (!dmabuf->ready) - return 0; - if (dmabuf->mapped) { - stop_dac(state); - return 0; - } - add_wait_queue(&dmabuf->wait, &wait); - for (;;) { - - spin_lock_irqsave(&state->card->lock, flags); - ali_update_ptr(state); - count = dmabuf->count; - spin_unlock_irqrestore(&state->card->lock, flags); - if (count <= 0) - break; - /* - * This will make sure that our LVI is correct, that our - * pointer is updated, and that the DAC is running. We - * have to force the setting of dmabuf->trigger to avoid - * any possible deadlocks. - */ - if (!dmabuf->enable) { - dmabuf->trigger = PCM_ENABLE_OUTPUT; - ali_update_lvi(state, 0); - } - if (signal_pending(current) && signals_allowed) { - break; - } - - /* It seems that we have to set the current state to - * TASK_INTERRUPTIBLE every time to make the process - * really go to sleep. This also has to be *after* the - * update_ptr() call because update_ptr is likely to - * do a wake_up() which will unset this before we ever - * try to sleep, resuling in a tight loop in this code - * instead of actually sleeping and waiting for an - * interrupt to wake us up! - */ - set_current_state(TASK_INTERRUPTIBLE); - /* - * set the timeout to significantly longer than it *should* - * take for the DAC to drain the DMA buffer - */ - tmo = (count * HZ) / (dmabuf->rate); - if (!schedule_timeout(tmo >= 2 ? tmo : 2)) { - printk(KERN_ERR "ali_audio: drain_dac, dma timeout?\n"); - count = 0; - break; - } - } - set_current_state(TASK_RUNNING); - remove_wait_queue(&dmabuf->wait, &wait); - if (count > 0 && signal_pending(current) && signals_allowed) - return -ERESTARTSYS; - stop_dac(state); - return 0; -} - - -static int drain_spdifout(struct ali_state *state, int signals_allowed) -{ - - DECLARE_WAITQUEUE(wait, current); - struct dmabuf *dmabuf = &state->dmabuf; - unsigned long flags; - unsigned long tmo; - int count; - if (!dmabuf->ready) - return 0; - if (dmabuf->mapped) { - stop_spdifout(state); - return 0; - } - add_wait_queue(&dmabuf->wait, &wait); - for (;;) { - - spin_lock_irqsave(&state->card->lock, flags); - ali_update_ptr(state); - count = dmabuf->count; - spin_unlock_irqrestore(&state->card->lock, flags); - if (count <= 0) - break; - /* - * This will make sure that our LVI is correct, that our - * pointer is updated, and that the DAC is running. We - * have to force the setting of dmabuf->trigger to avoid - * any possible deadlocks. - */ - if (!dmabuf->enable) { - if (codec_independent_spdif_locked > 0) { - dmabuf->trigger = SPDIF_ENABLE_OUTPUT; - ali_update_lvi(state, 2); - } else { - if (controller_independent_spdif_locked > 0) { - dmabuf->trigger = SPDIF_ENABLE_OUTPUT; - ali_update_lvi(state, 3); - } - } - } - if (signal_pending(current) && signals_allowed) { - break; - } - - /* It seems that we have to set the current state to - * TASK_INTERRUPTIBLE every time to make the process - * really go to sleep. This also has to be *after* the - * update_ptr() call because update_ptr is likely to - * do a wake_up() which will unset this before we ever - * try to sleep, resuling in a tight loop in this code - * instead of actually sleeping and waiting for an - * interrupt to wake us up! - */ - set_current_state(TASK_INTERRUPTIBLE); - /* - * set the timeout to significantly longer than it *should* - * take for the DAC to drain the DMA buffer - */ - tmo = (count * HZ) / (dmabuf->rate); - if (!schedule_timeout(tmo >= 2 ? tmo : 2)) { - printk(KERN_ERR "ali_audio: drain_spdifout, dma timeout?\n"); - count = 0; - break; - } - } - set_current_state(TASK_RUNNING); - remove_wait_queue(&dmabuf->wait, &wait); - if (count > 0 && signal_pending(current) && signals_allowed) - return -ERESTARTSYS; - stop_spdifout(state); - return 0; -} - -static void ali_channel_interrupt(struct ali_card *card) -{ - int i, count; - - for (i = 0; i < NR_HW_CH; i++) { - struct ali_state *state = card->states[i]; - struct ali_channel *c = NULL; - struct dmabuf *dmabuf; - unsigned long port = card->iobase; - u16 status; - if (!state) - continue; - if (!state->dmabuf.ready) - continue; - dmabuf = &state->dmabuf; - if (codec_independent_spdif_locked > 0) { - if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) { - c = dmabuf->codec_spdifout_channel; - } - } else { - if (controller_independent_spdif_locked > 0) { - if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) - c = dmabuf->controller_spdifout_channel; - } else { - if (dmabuf->enable & DAC_RUNNING) { - c = dmabuf->write_channel; - } else if (dmabuf->enable & ADC_RUNNING) { - c = dmabuf->read_channel; - } else - continue; - } - } - port += c->port; - - status = inw(port + OFF_SR); - - if (status & DMA_INT_COMPLETE) { - /* only wake_up() waiters if this interrupt signals - * us being beyond a userfragsize of data open or - * available, and ali_update_ptr() does that for - * us - */ - ali_update_ptr(state); - } - - if (status & DMA_INT_LVI) { - ali_update_ptr(state); - wake_up(&dmabuf->wait); - - if (dmabuf->enable & DAC_RUNNING) - count = dmabuf->count; - else if (dmabuf->enable & ADC_RUNNING) - count = dmabuf->dmasize - dmabuf->count; - else if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) - count = dmabuf->count; - else if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) - count = dmabuf->count; - else count = 0; - - if (count > 0) { - if (dmabuf->enable & DAC_RUNNING) - outl((1 << 1), state->card->iobase + ALI_DMACR); - else if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) - outl((1 << 3), state->card->iobase + ALI_DMACR); - else if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) - outl((1 << 7), state->card->iobase + ALI_DMACR); - } else { - if (dmabuf->enable & DAC_RUNNING) - __stop_dac(state); - if (dmabuf->enable & ADC_RUNNING) - __stop_adc(state); - if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) - __stop_spdifout(state); - if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) - __stop_spdifout(state); - dmabuf->enable = 0; - wake_up(&dmabuf->wait); - } - - } - if (!(status & DMA_INT_DCH)) { - ali_update_ptr(state); - wake_up(&dmabuf->wait); - if (dmabuf->enable & DAC_RUNNING) - count = dmabuf->count; - else if (dmabuf->enable & ADC_RUNNING) - count = dmabuf->dmasize - dmabuf->count; - else if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) - count = dmabuf->count; - else if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) - count = dmabuf->count; - else - count = 0; - - if (count > 0) { - if (dmabuf->enable & DAC_RUNNING) - outl((1 << 1), state->card->iobase + ALI_DMACR); - else if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) - outl((1 << 3), state->card->iobase + ALI_DMACR); - else if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) - outl((1 << 7), state->card->iobase + ALI_DMACR); - } else { - if (dmabuf->enable & DAC_RUNNING) - __stop_dac(state); - if (dmabuf->enable & ADC_RUNNING) - __stop_adc(state); - if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) - __stop_spdifout(state); - if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) - __stop_spdifout(state); - dmabuf->enable = 0; - wake_up(&dmabuf->wait); - } - } - outw(status & DMA_INT_MASK, port + OFF_SR); - } -} - -static irqreturn_t ali_interrupt(int irq, void *dev_id, struct pt_regs *regs) -{ - struct ali_card *card = (struct ali_card *) dev_id; - u32 status; - u16 status2; - - spin_lock(&card->lock); - status = inl(card->iobase + ALI_INTERRUPTSR); - if (!(status & INT_MASK)) { - spin_unlock(&card->lock); - return IRQ_NONE; /* not for us */ - } - - if (codec_independent_spdif_locked > 0) { - if (globel == 0) { - globel += 1; - status2 = inw(card->iobase + 0x76); - outw(status2 | 0x000c, card->iobase + 0x76); - } else { - if (status & (INT_PCMOUT | INT_PCMIN | INT_MICIN | INT_SPDIFOUT | INT_CODECSPDIFOUT)) - ali_channel_interrupt(card); - } - } else { - if (status & (INT_PCMOUT | INT_PCMIN | INT_MICIN | INT_SPDIFOUT | INT_CODECSPDIFOUT)) - ali_channel_interrupt(card); - } - - /* clear 'em */ - outl(status & INT_MASK, card->iobase + ALI_INTERRUPTSR); - spin_unlock(&card->lock); - return IRQ_HANDLED; -} - -/* in this loop, dmabuf.count signifies the amount of data that is - waiting to be copied to the user's buffer. It is filled by the dma - machine and drained by this loop. */ - -static ssize_t ali_read(struct file *file, char __user *buffer, - size_t count, loff_t * ppos) -{ - struct ali_state *state = (struct ali_state *) file->private_data; - struct ali_card *card = state ? state->card : NULL; - struct dmabuf *dmabuf = &state->dmabuf; - ssize_t ret; - unsigned long flags; - unsigned int swptr; - int cnt; - DECLARE_WAITQUEUE(waita, current); -#ifdef DEBUG2 - printk("ali_audio: ali_read called, count = %d\n", count); -#endif - if (dmabuf->mapped) - return -ENXIO; - if (dmabuf->enable & DAC_RUNNING) - return -ENODEV; - if (!dmabuf->read_channel) { - dmabuf->ready = 0; - dmabuf->read_channel = card->alloc_rec_pcm_channel(card); - if (!dmabuf->read_channel) { - return -EBUSY; - } - } - if (!dmabuf->ready && (ret = prog_dmabuf(state, 1))) - return ret; - if (!access_ok(VERIFY_WRITE, buffer, count)) - return -EFAULT; - ret = 0; - add_wait_queue(&dmabuf->wait, &waita); - while (count > 0) { - set_current_state(TASK_INTERRUPTIBLE); - spin_lock_irqsave(&card->lock, flags); - if (PM_SUSPENDED(card)) { - spin_unlock_irqrestore(&card->lock, flags); - schedule(); - if (signal_pending(current)) { - if (!ret) - ret = -EAGAIN; - break; - } - continue; - } - swptr = dmabuf->swptr; - cnt = ali_get_available_read_data(state); - // this is to make the copy_to_user simpler below - if (cnt > (dmabuf->dmasize - swptr)) - cnt = dmabuf->dmasize - swptr; - spin_unlock_irqrestore(&card->lock, flags); - if (cnt > count) - cnt = count; - /* Lop off the last two bits to force the code to always - * write in full samples. This keeps software that sets - * O_NONBLOCK but doesn't check the return value of the - * write call from getting things out of state where they - * think a full 4 byte sample was written when really only - * a portion was, resulting in odd sound and stereo - * hysteresis. - */ - cnt &= ~0x3; - if (cnt <= 0) { - unsigned long tmo; - /* - * Don't let us deadlock. The ADC won't start if - * dmabuf->trigger isn't set. A call to SETTRIGGER - * could have turned it off after we set it to on - * previously. - */ - dmabuf->trigger = PCM_ENABLE_INPUT; - /* - * This does three things. Updates LVI to be correct, - * makes sure the ADC is running, and updates the - * hwptr. - */ - ali_update_lvi(state, 1); - if (file->f_flags & O_NONBLOCK) { - if (!ret) - ret = -EAGAIN; - goto done; - } - /* Set the timeout to how long it would take to fill - * two of our buffers. If we haven't been woke up - * by then, then we know something is wrong. - */ - tmo = (dmabuf->dmasize * HZ * 2) / (dmabuf->rate * 4); - - /* There are two situations when sleep_on_timeout returns, one is when - the interrupt is serviced correctly and the process is waked up by - ISR ON TIME. Another is when timeout is expired, which means that - either interrupt is NOT serviced correctly (pending interrupt) or it - is TOO LATE for the process to be scheduled to run (scheduler latency) - which results in a (potential) buffer overrun. And worse, there is - NOTHING we can do to prevent it. */ - if (!schedule_timeout(tmo >= 2 ? tmo : 2)) { - printk(KERN_ERR - "ali_audio: recording schedule timeout, " - "dmasz %u fragsz %u count %i hwptr %u swptr %u\n", - dmabuf->dmasize, dmabuf->fragsize, - dmabuf->count, dmabuf->hwptr, - dmabuf->swptr); - /* a buffer overrun, we delay the recovery until next time the - while loop begin and we REALLY have space to record */ - } - if (signal_pending(current)) { - ret = ret ? ret : -ERESTARTSYS; - goto done; - } - continue; - } - - if (copy_to_user(buffer, dmabuf->rawbuf + swptr, cnt)) { - if (!ret) - ret = -EFAULT; - goto done; - } - - swptr = (swptr + cnt) % dmabuf->dmasize; - spin_lock_irqsave(&card->lock, flags); - if (PM_SUSPENDED(card)) { - spin_unlock_irqrestore(&card->lock, flags); - continue; - } - dmabuf->swptr = swptr; - dmabuf->count -= cnt; - spin_unlock_irqrestore(&card->lock, flags); - count -= cnt; - buffer += cnt; - ret += cnt; - } -done: - ali_update_lvi(state, 1); - set_current_state(TASK_RUNNING); - remove_wait_queue(&dmabuf->wait, &waita); - return ret; -} - -/* in this loop, dmabuf.count signifies the amount of data that is waiting to be dma to - the soundcard. it is drained by the dma machine and filled by this loop. */ -static ssize_t ali_write(struct file *file, - const char __user *buffer, size_t count, loff_t * ppos) -{ - struct ali_state *state = (struct ali_state *) file->private_data; - struct ali_card *card = state ? state->card : NULL; - struct dmabuf *dmabuf = &state->dmabuf; - ssize_t ret; - unsigned long flags; - unsigned int swptr = 0; - int cnt, x; - DECLARE_WAITQUEUE(waita, current); -#ifdef DEBUG2 - printk("ali_audio: ali_write called, count = %d\n", count); -#endif - if (dmabuf->mapped) - return -ENXIO; - if (dmabuf->enable & ADC_RUNNING) - return -ENODEV; - if (codec_independent_spdif_locked > 0) { - if (!dmabuf->codec_spdifout_channel) { - dmabuf->ready = 0; - dmabuf->codec_spdifout_channel = card->alloc_codec_spdifout_channel(card); - if (!dmabuf->codec_spdifout_channel) - return -EBUSY; - } - } else { - if (controller_independent_spdif_locked > 0) { - if (!dmabuf->controller_spdifout_channel) { - dmabuf->ready = 0; - dmabuf->controller_spdifout_channel = card->alloc_controller_spdifout_channel(card); - if (!dmabuf->controller_spdifout_channel) - return -EBUSY; - } - } else { - if (!dmabuf->write_channel) { - dmabuf->ready = 0; - dmabuf->write_channel = - card->alloc_pcm_channel(card); - if (!dmabuf->write_channel) - return -EBUSY; - } - } - } - - if (codec_independent_spdif_locked > 0) { - if (!dmabuf->ready && (ret = prog_dmabuf(state, 2))) - return ret; - } else { - if (controller_independent_spdif_locked > 0) { - if (!dmabuf->ready && (ret = prog_dmabuf(state, 3))) - return ret; - } else { - - if (!dmabuf->ready && (ret = prog_dmabuf(state, 0))) - return ret; - } - } - if (!access_ok(VERIFY_READ, buffer, count)) - return -EFAULT; - ret = 0; - add_wait_queue(&dmabuf->wait, &waita); - while (count > 0) { - set_current_state(TASK_INTERRUPTIBLE); - spin_lock_irqsave(&state->card->lock, flags); - if (PM_SUSPENDED(card)) { - spin_unlock_irqrestore(&card->lock, flags); - schedule(); - if (signal_pending(current)) { - if (!ret) - ret = -EAGAIN; - break; - } - continue; - } - - swptr = dmabuf->swptr; - cnt = ali_get_free_write_space(state); - /* Bound the maximum size to how much we can copy to the - * dma buffer before we hit the end. If we have more to - * copy then it will get done in a second pass of this - * loop starting from the beginning of the buffer. - */ - if (cnt > (dmabuf->dmasize - swptr)) - cnt = dmabuf->dmasize - swptr; - spin_unlock_irqrestore(&state->card->lock, flags); -#ifdef DEBUG2 - printk(KERN_INFO - "ali_audio: ali_write: %d bytes available space\n", - cnt); -#endif - if (cnt > count) - cnt = count; - /* Lop off the last two bits to force the code to always - * write in full samples. This keeps software that sets - * O_NONBLOCK but doesn't check the return value of the - * write call from getting things out of state where they - * think a full 4 byte sample was written when really only - * a portion was, resulting in odd sound and stereo - * hysteresis. - */ - cnt &= ~0x3; - if (cnt <= 0) { - unsigned long tmo; - // There is data waiting to be played - /* - * Force the trigger setting since we would - * deadlock with it set any other way - */ - if (codec_independent_spdif_locked > 0) { - dmabuf->trigger = SPDIF_ENABLE_OUTPUT; - ali_update_lvi(state, 2); - } else { - if (controller_independent_spdif_locked > 0) { - dmabuf->trigger = SPDIF_ENABLE_OUTPUT; - ali_update_lvi(state, 3); - } else { - - dmabuf->trigger = PCM_ENABLE_OUTPUT; - ali_update_lvi(state, 0); - } - } - if (file->f_flags & O_NONBLOCK) { - if (!ret) - ret = -EAGAIN; - goto ret; - } - /* Not strictly correct but works */ - tmo = (dmabuf->dmasize * HZ * 2) / (dmabuf->rate * 4); - /* There are two situations when sleep_on_timeout returns, one is when - the interrupt is serviced correctly and the process is waked up by - ISR ON TIME. Another is when timeout is expired, which means that - either interrupt is NOT serviced correctly (pending interrupt) or it - is TOO LATE for the process to be scheduled to run (scheduler latency) - which results in a (potential) buffer underrun. And worse, there is - NOTHING we can do to prevent it. */ - - /* FIXME - do timeout handling here !! */ - schedule_timeout(tmo >= 2 ? tmo : 2); - - if (signal_pending(current)) { - if (!ret) - ret = -ERESTARTSYS; - goto ret; - } - continue; - } - if (copy_from_user(dmabuf->rawbuf + swptr, buffer, cnt)) { - if (!ret) - ret = -EFAULT; - goto ret; - } - - swptr = (swptr + cnt) % dmabuf->dmasize; - spin_lock_irqsave(&state->card->lock, flags); - if (PM_SUSPENDED(card)) { - spin_unlock_irqrestore(&card->lock, flags); - continue; - } - - dmabuf->swptr = swptr; - dmabuf->count += cnt; - count -= cnt; - buffer += cnt; - ret += cnt; - spin_unlock_irqrestore(&state->card->lock, flags); - } - if (swptr % dmabuf->fragsize) { - x = dmabuf->fragsize - (swptr % dmabuf->fragsize); - memset(dmabuf->rawbuf + swptr, '\0', x); - } -ret: - if (codec_independent_spdif_locked > 0) { - ali_update_lvi(state, 2); - } else { - if (controller_independent_spdif_locked > 0) { - ali_update_lvi(state, 3); - } else { - ali_update_lvi(state, 0); - } - } - set_current_state(TASK_RUNNING); - remove_wait_queue(&dmabuf->wait, &waita); - return ret; -} - -/* No kernel lock - we have our own spinlock */ -static unsigned int ali_poll(struct file *file, struct poll_table_struct - *wait) -{ - struct ali_state *state = (struct ali_state *) file->private_data; - struct dmabuf *dmabuf = &state->dmabuf; - unsigned long flags; - unsigned int mask = 0; - if (!dmabuf->ready) - return 0; - poll_wait(file, &dmabuf->wait, wait); - spin_lock_irqsave(&state->card->lock, flags); - ali_update_ptr(state); - if (file->f_mode & FMODE_READ && dmabuf->enable & ADC_RUNNING) { - if (dmabuf->count >= (signed) dmabuf->fragsize) - mask |= POLLIN | POLLRDNORM; - } - if (file->f_mode & FMODE_WRITE && (dmabuf->enable & (DAC_RUNNING|CODEC_SPDIFOUT_RUNNING|CONTROLLER_SPDIFOUT_RUNNING))) { - if ((signed) dmabuf->dmasize >= dmabuf->count + (signed) dmabuf->fragsize) - mask |= POLLOUT | POLLWRNORM; - } - spin_unlock_irqrestore(&state->card->lock, flags); - return mask; -} - -static int ali_mmap(struct file *file, struct vm_area_struct *vma) -{ - struct ali_state *state = (struct ali_state *) file->private_data; - struct dmabuf *dmabuf = &state->dmabuf; - int ret = -EINVAL; - unsigned long size; - lock_kernel(); - if (vma->vm_flags & VM_WRITE) { - if (!dmabuf->write_channel && (dmabuf->write_channel = state->card->alloc_pcm_channel(state->card)) == NULL) { - ret = -EBUSY; - goto out; - } - } - if (vma->vm_flags & VM_READ) { - if (!dmabuf->read_channel && (dmabuf->read_channel = state->card->alloc_rec_pcm_channel(state->card)) == NULL) { - ret = -EBUSY; - goto out; - } - } - if ((ret = prog_dmabuf(state, 0)) != 0) - goto out; - ret = -EINVAL; - if (vma->vm_pgoff != 0) - goto out; - size = vma->vm_end - vma->vm_start; - if (size > (PAGE_SIZE << dmabuf->buforder)) - goto out; - ret = -EAGAIN; - if (remap_pfn_range(vma, vma->vm_start, - virt_to_phys(dmabuf->rawbuf) >> PAGE_SHIFT, - size, vma->vm_page_prot)) - goto out; - dmabuf->mapped = 1; - dmabuf->trigger = 0; - ret = 0; -out: - unlock_kernel(); - return ret; -} - -static int ali_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) -{ - struct ali_state *state = (struct ali_state *) file->private_data; - struct ali_channel *c = NULL; - struct dmabuf *dmabuf = &state->dmabuf; - unsigned long flags; - audio_buf_info abinfo; - count_info cinfo; - unsigned int i_scr; - int val = 0, ret; - struct ac97_codec *codec = state->card->ac97_codec[0]; - void __user *argp = (void __user *)arg; - int __user *p = argp; - -#ifdef DEBUG - printk("ali_audio: ali_ioctl, arg=0x%x, cmd=", - arg ? *p : 0); -#endif - switch (cmd) { - case OSS_GETVERSION: -#ifdef DEBUG - printk("OSS_GETVERSION\n"); -#endif - return put_user(SOUND_VERSION, p); - case SNDCTL_DSP_RESET: -#ifdef DEBUG - printk("SNDCTL_DSP_RESET\n"); -#endif - spin_lock_irqsave(&state->card->lock, flags); - if (dmabuf->enable == DAC_RUNNING) { - c = dmabuf->write_channel; - __stop_dac(state); - } - if (dmabuf->enable == ADC_RUNNING) { - c = dmabuf->read_channel; - __stop_adc(state); - } - if (dmabuf->enable == CODEC_SPDIFOUT_RUNNING) { - c = dmabuf->codec_spdifout_channel; - __stop_spdifout(state); - } - if (dmabuf->enable == CONTROLLER_SPDIFOUT_RUNNING) { - c = dmabuf->controller_spdifout_channel; - __stop_spdifout(state); - } - if (c != NULL) { - outb(2, state->card->iobase + c->port + OFF_CR); /* reset DMA machine */ - outl(virt_to_bus(&c->sg[0]), - state->card->iobase + c->port + OFF_BDBAR); - outb(0, state->card->iobase + c->port + OFF_CIV); - outb(0, state->card->iobase + c->port + OFF_LVI); - } - - spin_unlock_irqrestore(&state->card->lock, flags); - synchronize_irq(state->card->pci_dev->irq); - dmabuf->ready = 0; - dmabuf->swptr = dmabuf->hwptr = 0; - dmabuf->count = dmabuf->total_bytes = 0; - return 0; - case SNDCTL_DSP_SYNC: -#ifdef DEBUG - printk("SNDCTL_DSP_SYNC\n"); -#endif - if (codec_independent_spdif_locked > 0) { - if (dmabuf->enable != CODEC_SPDIFOUT_RUNNING - || file->f_flags & O_NONBLOCK) - return 0; - if ((val = drain_spdifout(state, 1))) - return val; - } else { - if (controller_independent_spdif_locked > 0) { - if (dmabuf->enable != - CONTROLLER_SPDIFOUT_RUNNING - || file->f_flags & O_NONBLOCK) - return 0; - if ((val = drain_spdifout(state, 1))) - return val; - } else { - if (dmabuf->enable != DAC_RUNNING - || file->f_flags & O_NONBLOCK) - return 0; - if ((val = drain_dac(state, 1))) - return val; - } - } - dmabuf->total_bytes = 0; - return 0; - case SNDCTL_DSP_SPEED: /* set smaple rate */ -#ifdef DEBUG - printk("SNDCTL_DSP_SPEED\n"); -#endif - if (get_user(val, p)) - return -EFAULT; - if (val >= 0) { - if (file->f_mode & FMODE_WRITE) { - if ((state->card->ac97_status & SPDIF_ON)) { /* S/PDIF Enabled */ - /* RELTEK ALC650 only support 48000, need to check that */ - if (ali_valid_spdif_rate(codec, val)) { - if (codec_independent_spdif_locked > 0) { - ali_set_spdif_output(state, -1, 0); - stop_spdifout(state); - dmabuf->ready = 0; - /* I add test codec independent spdif out */ - spin_lock_irqsave(&state->card->lock, flags); - ali_set_codecspdifout_rate(state, val); // I modified - spin_unlock_irqrestore(&state->card->lock, flags); - /* Set S/PDIF transmitter rate. */ - i_scr = inl(state->card->iobase + ALI_SCR); - if ((i_scr & 0x00300000) == 0x00100000) { - ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked); - } else { - if ((i_scr&0x00300000) == 0x00200000) - { - ali_set_spdif_output(state, AC97_EA_SPSA_6_9, codec_independent_spdif_locked); - } else { - if ((i_scr & 0x00300000) == 0x00300000) { - ali_set_spdif_output(state, AC97_EA_SPSA_10_11, codec_independent_spdif_locked); - } else { - ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked); - } - } - } - - if (!(state->card->ac97_status & SPDIF_ON)) { - val = dmabuf->rate; - } - } else { - if (controller_independent_spdif_locked > 0) - { - stop_spdifout(state); - dmabuf->ready = 0; - spin_lock_irqsave(&state->card->lock, flags); - ali_set_spdifout_rate(state, controller_independent_spdif_locked); - spin_unlock_irqrestore(&state->card->lock, flags); - } else { - /* Set DAC rate */ - ali_set_spdif_output(state, -1, 0); - stop_dac(state); - dmabuf->ready = 0; - spin_lock_irqsave(&state->card->lock, flags); - ali_set_dac_rate(state, val); - spin_unlock_irqrestore(&state->card->lock, flags); - /* Set S/PDIF transmitter rate. */ - ali_set_spdif_output(state, AC97_EA_SPSA_3_4, val); - if (!(state->card->ac97_status & SPDIF_ON)) - { - val = dmabuf->rate; - } - } - } - } else { /* Not a valid rate for S/PDIF, ignore it */ - val = dmabuf->rate; - } - } else { - stop_dac(state); - dmabuf->ready = 0; - spin_lock_irqsave(&state->card->lock, flags); - ali_set_dac_rate(state, val); - spin_unlock_irqrestore(&state->card->lock, flags); - } - } - if (file->f_mode & FMODE_READ) { - stop_adc(state); - dmabuf->ready = 0; - spin_lock_irqsave(&state->card->lock, flags); - ali_set_adc_rate(state, val); - spin_unlock_irqrestore(&state->card->lock, flags); - } - } - return put_user(dmabuf->rate, p); - case SNDCTL_DSP_STEREO: /* set stereo or mono channel */ -#ifdef DEBUG - printk("SNDCTL_DSP_STEREO\n"); -#endif - if (dmabuf->enable & DAC_RUNNING) { - stop_dac(state); - } - if (dmabuf->enable & ADC_RUNNING) { - stop_adc(state); - } - if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) { - stop_spdifout(state); - } - if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) { - stop_spdifout(state); - } - return put_user(1, p); - case SNDCTL_DSP_GETBLKSIZE: - if (file->f_mode & FMODE_WRITE) { - if (codec_independent_spdif_locked > 0) { - if (!dmabuf->ready && (val = prog_dmabuf(state, 2))) - return val; - } else { - if (controller_independent_spdif_locked > 0) { - if (!dmabuf->ready && (val = prog_dmabuf(state, 3))) - return val; - } else { - if (!dmabuf->ready && (val = prog_dmabuf(state, 0))) - return val; - } - } - } - - if (file->f_mode & FMODE_READ) { - if (!dmabuf->ready && (val = prog_dmabuf(state, 1))) - return val; - } -#ifdef DEBUG - printk("SNDCTL_DSP_GETBLKSIZE %d\n", dmabuf->userfragsize); -#endif - return put_user(dmabuf->userfragsize, p); - case SNDCTL_DSP_GETFMTS: /* Returns a mask of supported sample format */ -#ifdef DEBUG - printk("SNDCTL_DSP_GETFMTS\n"); -#endif - return put_user(AFMT_S16_LE, p); - case SNDCTL_DSP_SETFMT: /* Select sample format */ -#ifdef DEBUG - printk("SNDCTL_DSP_SETFMT\n"); -#endif - return put_user(AFMT_S16_LE, p); - case SNDCTL_DSP_CHANNELS: // add support 4,6 channel -#ifdef DEBUG - printk("SNDCTL_DSP_CHANNELS\n"); -#endif - if (get_user(val, p)) - return -EFAULT; - if (val > 0) { - if (dmabuf->enable & DAC_RUNNING) { - stop_dac(state); - } - if (dmabuf->enable & CODEC_SPDIFOUT_RUNNING) { - stop_spdifout(state); - } - if (dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING) { - stop_spdifout(state); - } - if (dmabuf->enable & ADC_RUNNING) { - stop_adc(state); - } - } else { - return put_user(state->card->channels, p); - } - - i_scr = inl(state->card->iobase + ALI_SCR); - /* Current # of channels enabled */ - if (i_scr & 0x00000100) - ret = 4; - else if (i_scr & 0x00000200) - ret = 6; - else - ret = 2; - switch (val) { - case 2: /* 2 channels is always supported */ - if (codec_independent_spdif_locked > 0) { - outl(((i_scr & 0xfffffcff) | 0x00100000), (state->card->iobase + ALI_SCR)); - } else - outl((i_scr & 0xfffffcff), (state->card->iobase + ALI_SCR)); - /* Do we need to change mixer settings???? */ - break; - case 4: /* Supported on some chipsets, better check first */ - if (codec_independent_spdif_locked > 0) { - outl(((i_scr & 0xfffffcff) | 0x00000100 | 0x00200000), (state->card->iobase + ALI_SCR)); - } else - outl(((i_scr & 0xfffffcff) | 0x00000100), (state->card->iobase + ALI_SCR)); - break; - case 6: /* Supported on some chipsets, better check first */ - if (codec_independent_spdif_locked > 0) { - outl(((i_scr & 0xfffffcff) | 0x00000200 | 0x00008000 | 0x00300000), (state->card->iobase + ALI_SCR)); - } else - outl(((i_scr & 0xfffffcff) | 0x00000200 | 0x00008000), (state->card->iobase + ALI_SCR)); - break; - default: /* nothing else is ever supported by the chipset */ - val = ret; - break; - } - return put_user(val, p); - case SNDCTL_DSP_POST: /* the user has sent all data and is notifying us */ - /* we update the swptr to the end of the last sg segment then return */ -#ifdef DEBUG - printk("SNDCTL_DSP_POST\n"); -#endif - if (codec_independent_spdif_locked > 0) { - if (!dmabuf->ready || (dmabuf->enable != CODEC_SPDIFOUT_RUNNING)) - return 0; - } else { - if (controller_independent_spdif_locked > 0) { - if (!dmabuf->ready || (dmabuf->enable != CONTROLLER_SPDIFOUT_RUNNING)) - return 0; - } else { - if (!dmabuf->ready || (dmabuf->enable != DAC_RUNNING)) - return 0; - } - } - if ((dmabuf->swptr % dmabuf->fragsize) != 0) { - val = dmabuf->fragsize - (dmabuf->swptr % dmabuf->fragsize); - dmabuf->swptr += val; - dmabuf->count += val; - } - return 0; - case SNDCTL_DSP_SUBDIVIDE: - if (dmabuf->subdivision) - return -EINVAL; - if (get_user(val, p)) - return -EFAULT; - if (val != 1 && val != 2 && val != 4) - return -EINVAL; -#ifdef DEBUG - printk("SNDCTL_DSP_SUBDIVIDE %d\n", val); -#endif - dmabuf->subdivision = val; - dmabuf->ready = 0; - return 0; - case SNDCTL_DSP_SETFRAGMENT: - if (get_user(val, p)) - return -EFAULT; - dmabuf->ossfragsize = 1 << (val & 0xffff); - dmabuf->ossmaxfrags = (val >> 16) & 0xffff; - if (!dmabuf->ossfragsize || !dmabuf->ossmaxfrags) - return -EINVAL; - /* - * Bound the frag size into our allowed range of 256 - 4096 - */ - if (dmabuf->ossfragsize < 256) - dmabuf->ossfragsize = 256; - else if (dmabuf->ossfragsize > 4096) - dmabuf->ossfragsize = 4096; - /* - * The numfrags could be something reasonable, or it could - * be 0xffff meaning "Give me as much as possible". So, - * we check the numfrags * fragsize doesn't exceed our - * 64k buffer limit, nor is it less than our 8k minimum. - * If it fails either one of these checks, then adjust the - * number of fragments, not the size of them. It's OK if - * our number of fragments doesn't equal 32 or anything - * like our hardware based number now since we are using - * a different frag count for the hardware. Before we get - * into this though, bound the maxfrags to avoid overflow - * issues. A reasonable bound would be 64k / 256 since our - * maximum buffer size is 64k and our minimum frag size is - * 256. On the other end, our minimum buffer size is 8k and - * our maximum frag size is 4k, so the lower bound should - * be 2. - */ - if (dmabuf->ossmaxfrags > 256) - dmabuf->ossmaxfrags = 256; - else if (dmabuf->ossmaxfrags < 2) - dmabuf->ossmaxfrags = 2; - val = dmabuf->ossfragsize * dmabuf->ossmaxfrags; - while (val < 8192) { - val <<= 1; - dmabuf->ossmaxfrags <<= 1; - } - while (val > 65536) { - val >>= 1; - dmabuf->ossmaxfrags >>= 1; - } - dmabuf->ready = 0; -#ifdef DEBUG - printk("SNDCTL_DSP_SETFRAGMENT 0x%x, %d, %d\n", val, - dmabuf->ossfragsize, dmabuf->ossmaxfrags); -#endif - return 0; - case SNDCTL_DSP_GETOSPACE: - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - if (codec_independent_spdif_locked > 0) { - if (!dmabuf->ready && (val = prog_dmabuf(state, 2)) != 0) - return val; - } else { - if (controller_independent_spdif_locked > 0) { - if (!dmabuf->ready && (val = prog_dmabuf(state, 3)) != 0) - return val; - } else { - if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0) - return val; - } - } - spin_lock_irqsave(&state->card->lock, flags); - ali_update_ptr(state); - abinfo.fragsize = dmabuf->userfragsize; - abinfo.fragstotal = dmabuf->userfrags; - if (dmabuf->mapped) - abinfo.bytes = dmabuf->dmasize; - else - abinfo.bytes = ali_get_free_write_space(state); - abinfo.fragments = abinfo.bytes / dmabuf->userfragsize; - spin_unlock_irqrestore(&state->card->lock, flags); -#if defined(DEBUG) || defined(DEBUG_MMAP) - printk("SNDCTL_DSP_GETOSPACE %d, %d, %d, %d\n", - abinfo.bytes, abinfo.fragsize, abinfo.fragments, - abinfo.fragstotal); -#endif - return copy_to_user(argp, &abinfo, - sizeof(abinfo)) ? -EFAULT : 0; - case SNDCTL_DSP_GETOPTR: - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - if (codec_independent_spdif_locked > 0) { - if (!dmabuf->ready && (val = prog_dmabuf(state, 2)) != 0) - return val; - } else { - if (controller_independent_spdif_locked > 0) { - if (!dmabuf->ready && (val = prog_dmabuf(state, 3)) != 0) - return val; - } else { - if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0) - return val; - } - } - spin_lock_irqsave(&state->card->lock, flags); - val = ali_get_free_write_space(state); - cinfo.bytes = dmabuf->total_bytes; - cinfo.ptr = dmabuf->hwptr; - cinfo.blocks = val / dmabuf->userfragsize; - if (codec_independent_spdif_locked > 0) { - if (dmabuf->mapped && (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) { - dmabuf->count += val; - dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize; - __ali_update_lvi(state, 2); - } - } else { - if (controller_independent_spdif_locked > 0) { - if (dmabuf->mapped && (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) { - dmabuf->count += val; - dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize; - __ali_update_lvi(state, 3); - } - } else { - if (dmabuf->mapped && (dmabuf->trigger & PCM_ENABLE_OUTPUT)) { - dmabuf->count += val; - dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize; - __ali_update_lvi(state, 0); - } - } - } - spin_unlock_irqrestore(&state->card->lock, flags); -#if defined(DEBUG) || defined(DEBUG_MMAP) - printk("SNDCTL_DSP_GETOPTR %d, %d, %d, %d\n", cinfo.bytes, - cinfo.blocks, cinfo.ptr, dmabuf->count); -#endif - return copy_to_user(argp, &cinfo, sizeof(cinfo))? -EFAULT : 0; - case SNDCTL_DSP_GETISPACE: - if (!(file->f_mode & FMODE_READ)) - return -EINVAL; - if (!dmabuf->ready && (val = prog_dmabuf(state, 1)) != 0) - return val; - spin_lock_irqsave(&state->card->lock, flags); - abinfo.bytes = ali_get_available_read_data(state); - abinfo.fragsize = dmabuf->userfragsize; - abinfo.fragstotal = dmabuf->userfrags; - abinfo.fragments = abinfo.bytes / dmabuf->userfragsize; - spin_unlock_irqrestore(&state->card->lock, flags); -#if defined(DEBUG) || defined(DEBUG_MMAP) - printk("SNDCTL_DSP_GETISPACE %d, %d, %d, %d\n", - abinfo.bytes, abinfo.fragsize, abinfo.fragments, - abinfo.fragstotal); -#endif - return copy_to_user(argp, &abinfo, - sizeof(abinfo)) ? -EFAULT : 0; - case SNDCTL_DSP_GETIPTR: - if (!(file->f_mode & FMODE_READ)) - return -EINVAL; - if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0) - return val; - spin_lock_irqsave(&state->card->lock, flags); - val = ali_get_available_read_data(state); - cinfo.bytes = dmabuf->total_bytes; - cinfo.blocks = val / dmabuf->userfragsize; - cinfo.ptr = dmabuf->hwptr; - if (dmabuf->mapped && (dmabuf->trigger & PCM_ENABLE_INPUT)) { - dmabuf->count -= val; - dmabuf->swptr = (dmabuf->swptr + val) % dmabuf->dmasize; - __ali_update_lvi(state, 1); - } - spin_unlock_irqrestore(&state->card->lock, flags); -#if defined(DEBUG) || defined(DEBUG_MMAP) - printk("SNDCTL_DSP_GETIPTR %d, %d, %d, %d\n", cinfo.bytes, - cinfo.blocks, cinfo.ptr, dmabuf->count); -#endif - return copy_to_user(argp, &cinfo, sizeof(cinfo))? -EFAULT: 0; - case SNDCTL_DSP_NONBLOCK: -#ifdef DEBUG - printk("SNDCTL_DSP_NONBLOCK\n"); -#endif - file->f_flags |= O_NONBLOCK; - return 0; - case SNDCTL_DSP_GETCAPS: -#ifdef DEBUG - printk("SNDCTL_DSP_GETCAPS\n"); -#endif - return put_user(DSP_CAP_REALTIME | DSP_CAP_TRIGGER | - DSP_CAP_MMAP | DSP_CAP_BIND, p); - case SNDCTL_DSP_GETTRIGGER: - val = 0; -#ifdef DEBUG - printk("SNDCTL_DSP_GETTRIGGER 0x%x\n", dmabuf->trigger); -#endif - return put_user(dmabuf->trigger, p); - case SNDCTL_DSP_SETTRIGGER: - if (get_user(val, p)) - return -EFAULT; -#if defined(DEBUG) || defined(DEBUG_MMAP) - printk("SNDCTL_DSP_SETTRIGGER 0x%x\n", val); -#endif - if (!(val & PCM_ENABLE_INPUT) && dmabuf->enable == ADC_RUNNING) { - stop_adc(state); - } - if (!(val & PCM_ENABLE_OUTPUT) && dmabuf->enable == DAC_RUNNING) { - stop_dac(state); - } - if (!(val & SPDIF_ENABLE_OUTPUT) && dmabuf->enable == CODEC_SPDIFOUT_RUNNING) { - stop_spdifout(state); - } - if (!(val & SPDIF_ENABLE_OUTPUT) && dmabuf->enable == CONTROLLER_SPDIFOUT_RUNNING) { - stop_spdifout(state); - } - dmabuf->trigger = val; - if (val & PCM_ENABLE_OUTPUT && !(dmabuf->enable & DAC_RUNNING)) { - if (!dmabuf->write_channel) { - dmabuf->ready = 0; - dmabuf->write_channel = state->card->alloc_pcm_channel(state->card); - if (!dmabuf->write_channel) - return -EBUSY; - } - if (!dmabuf->ready && (ret = prog_dmabuf(state, 0))) - return ret; - if (dmabuf->mapped) { - spin_lock_irqsave(&state->card->lock, flags); - ali_update_ptr(state); - dmabuf->count = 0; - dmabuf->swptr = dmabuf->hwptr; - dmabuf->count = ali_get_free_write_space(state); - dmabuf->swptr = (dmabuf->swptr + dmabuf->count) % dmabuf->dmasize; - __ali_update_lvi(state, 0); - spin_unlock_irqrestore(&state->card->lock, - flags); - } else - start_dac(state); - } - if (val & SPDIF_ENABLE_OUTPUT && !(dmabuf->enable & CODEC_SPDIFOUT_RUNNING)) { - if (!dmabuf->codec_spdifout_channel) { - dmabuf->ready = 0; - dmabuf->codec_spdifout_channel = state->card->alloc_codec_spdifout_channel(state->card); - if (!dmabuf->codec_spdifout_channel) - return -EBUSY; - } - if (!dmabuf->ready && (ret = prog_dmabuf(state, 2))) - return ret; - if (dmabuf->mapped) { - spin_lock_irqsave(&state->card->lock, flags); - ali_update_ptr(state); - dmabuf->count = 0; - dmabuf->swptr = dmabuf->hwptr; - dmabuf->count = ali_get_free_write_space(state); - dmabuf->swptr = (dmabuf->swptr + dmabuf->count) % dmabuf->dmasize; - __ali_update_lvi(state, 2); - spin_unlock_irqrestore(&state->card->lock, - flags); - } else - start_spdifout(state); - } - if (val & SPDIF_ENABLE_OUTPUT && !(dmabuf->enable & CONTROLLER_SPDIFOUT_RUNNING)) { - if (!dmabuf->controller_spdifout_channel) { - dmabuf->ready = 0; - dmabuf->controller_spdifout_channel = state->card->alloc_controller_spdifout_channel(state->card); - if (!dmabuf->controller_spdifout_channel) - return -EBUSY; - } - if (!dmabuf->ready && (ret = prog_dmabuf(state, 3))) - return ret; - if (dmabuf->mapped) { - spin_lock_irqsave(&state->card->lock, flags); - ali_update_ptr(state); - dmabuf->count = 0; - dmabuf->swptr = dmabuf->hwptr; - dmabuf->count = ali_get_free_write_space(state); - dmabuf->swptr = (dmabuf->swptr + dmabuf->count) % dmabuf->dmasize; - __ali_update_lvi(state, 3); - spin_unlock_irqrestore(&state->card->lock, flags); - } else - start_spdifout(state); - } - if (val & PCM_ENABLE_INPUT && !(dmabuf->enable & ADC_RUNNING)) { - if (!dmabuf->read_channel) { - dmabuf->ready = 0; - dmabuf->read_channel = state->card->alloc_rec_pcm_channel(state->card); - if (!dmabuf->read_channel) - return -EBUSY; - } - if (!dmabuf->ready && (ret = prog_dmabuf(state, 1))) - return ret; - if (dmabuf->mapped) { - spin_lock_irqsave(&state->card->lock, - flags); - ali_update_ptr(state); - dmabuf->swptr = dmabuf->hwptr; - dmabuf->count = 0; - spin_unlock_irqrestore(&state->card->lock, flags); - } - ali_update_lvi(state, 1); - start_adc(state); - } - return 0; - case SNDCTL_DSP_SETDUPLEX: -#ifdef DEBUG - printk("SNDCTL_DSP_SETDUPLEX\n"); -#endif - return -EINVAL; - case SNDCTL_DSP_GETODELAY: - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - spin_lock_irqsave(&state->card->lock, flags); - ali_update_ptr(state); - val = dmabuf->count; - spin_unlock_irqrestore(&state->card->lock, flags); -#ifdef DEBUG - printk("SNDCTL_DSP_GETODELAY %d\n", dmabuf->count); -#endif - return put_user(val, p); - case SOUND_PCM_READ_RATE: -#ifdef DEBUG - printk("SOUND_PCM_READ_RATE %d\n", dmabuf->rate); -#endif - return put_user(dmabuf->rate, p); - case SOUND_PCM_READ_CHANNELS: -#ifdef DEBUG - printk("SOUND_PCM_READ_CHANNELS\n"); -#endif - return put_user(2, p); - case SOUND_PCM_READ_BITS: -#ifdef DEBUG - printk("SOUND_PCM_READ_BITS\n"); -#endif - return put_user(AFMT_S16_LE, p); - case SNDCTL_DSP_SETSPDIF: /* Set S/PDIF Control register */ -#ifdef DEBUG - printk("SNDCTL_DSP_SETSPDIF\n"); -#endif - if (get_user(val, p)) - return -EFAULT; - /* Check to make sure the codec supports S/PDIF transmitter */ - if ((state->card->ac97_features & 4)) { - /* mask out the transmitter speed bits so the user can't set them */ - val &= ~0x3000; - /* Add the current transmitter speed bits to the passed value */ - ret = ali_ac97_get(codec, AC97_SPDIF_CONTROL); - val |= (ret & 0x3000); - ali_ac97_set(codec, AC97_SPDIF_CONTROL, val); - if (ali_ac97_get(codec, AC97_SPDIF_CONTROL) != val) { - printk(KERN_ERR "ali_audio: Unable to set S/PDIF configuration to 0x%04x.\n", val); - return -EFAULT; - } - } -#ifdef DEBUG - else - printk(KERN_WARNING "ali_audio: S/PDIF transmitter not avalible.\n"); -#endif - return put_user(val, p); - case SNDCTL_DSP_GETSPDIF: /* Get S/PDIF Control register */ -#ifdef DEBUG - printk("SNDCTL_DSP_GETSPDIF\n"); -#endif - if (get_user(val, p)) - return -EFAULT; - /* Check to make sure the codec supports S/PDIF transmitter */ - if (!(state->card->ac97_features & 4)) { -#ifdef DEBUG - printk(KERN_WARNING "ali_audio: S/PDIF transmitter not avalible.\n"); -#endif - val = 0; - } else { - val = ali_ac97_get(codec, AC97_SPDIF_CONTROL); - } - - return put_user(val, p); -//end add support spdif out -//add support 4,6 channel - case SNDCTL_DSP_GETCHANNELMASK: -#ifdef DEBUG - printk("SNDCTL_DSP_GETCHANNELMASK\n"); -#endif - if (get_user(val, p)) - return -EFAULT; - /* Based on AC'97 DAC support, not ICH hardware */ - val = DSP_BIND_FRONT; - if (state->card->ac97_features & 0x0004) - val |= DSP_BIND_SPDIF; - if (state->card->ac97_features & 0x0080) - val |= DSP_BIND_SURR; - if (state->card->ac97_features & 0x0140) - val |= DSP_BIND_CENTER_LFE; - return put_user(val, p); - case SNDCTL_DSP_BIND_CHANNEL: -#ifdef DEBUG - printk("SNDCTL_DSP_BIND_CHANNEL\n"); -#endif - if (get_user(val, p)) - return -EFAULT; - if (val == DSP_BIND_QUERY) { - val = DSP_BIND_FRONT; /* Always report this as being enabled */ - if (state->card->ac97_status & SPDIF_ON) - val |= DSP_BIND_SPDIF; - else { - if (state->card->ac97_status & SURR_ON) - val |= DSP_BIND_SURR; - if (state->card-> - ac97_status & CENTER_LFE_ON) - val |= DSP_BIND_CENTER_LFE; - } - } else { /* Not a query, set it */ - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - if (dmabuf->enable == DAC_RUNNING) { - stop_dac(state); - } - if (val & DSP_BIND_SPDIF) { /* Turn on SPDIF */ - /* Ok, this should probably define what slots - * to use. For now, we'll only set it to the - * defaults: - * - * non multichannel codec maps to slots 3&4 - * 2 channel codec maps to slots 7&8 - * 4 channel codec maps to slots 6&9 - * 6 channel codec maps to slots 10&11 - * - * there should be some way for the app to - * select the slot assignment. - */ - i_scr = inl(state->card->iobase + ALI_SCR); - if (codec_independent_spdif_locked > 0) { - - if ((i_scr & 0x00300000) == 0x00100000) { - ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked); - } else { - if ((i_scr & 0x00300000) == 0x00200000) { - ali_set_spdif_output(state, AC97_EA_SPSA_6_9, codec_independent_spdif_locked); - } else { - if ((i_scr & 0x00300000) == 0x00300000) { - ali_set_spdif_output(state, AC97_EA_SPSA_10_11, codec_independent_spdif_locked); - } - } - } - } else { /* codec spdif out (pcm out share ) */ - ali_set_spdif_output(state, AC97_EA_SPSA_3_4, dmabuf->rate); //I do not modify - } - - if (!(state->card->ac97_status & SPDIF_ON)) - val &= ~DSP_BIND_SPDIF; - } else { - int mask; - int channels; - /* Turn off S/PDIF if it was on */ - if (state->card->ac97_status & SPDIF_ON) - ali_set_spdif_output(state, -1, 0); - mask = - val & (DSP_BIND_FRONT | DSP_BIND_SURR | - DSP_BIND_CENTER_LFE); - switch (mask) { - case DSP_BIND_FRONT: - channels = 2; - break; - case DSP_BIND_FRONT | DSP_BIND_SURR: - channels = 4; - break; - case DSP_BIND_FRONT | DSP_BIND_SURR | DSP_BIND_CENTER_LFE: - channels = 6; - break; - default: - val = DSP_BIND_FRONT; - channels = 2; - break; - } - ali_set_dac_channels(state, channels); - /* check that they really got turned on */ - if (!state->card->ac97_status & SURR_ON) - val &= ~DSP_BIND_SURR; - if (!state->card-> - ac97_status & CENTER_LFE_ON) - val &= ~DSP_BIND_CENTER_LFE; - } - } - return put_user(val, p); - case SNDCTL_DSP_MAPINBUF: - case SNDCTL_DSP_MAPOUTBUF: - case SNDCTL_DSP_SETSYNCRO: - case SOUND_PCM_WRITE_FILTER: - case SOUND_PCM_READ_FILTER: - return -EINVAL; - } - return -EINVAL; -} - -static int ali_open(struct inode *inode, struct file *file) -{ - int i = 0; - struct ali_card *card = devs; - struct ali_state *state = NULL; - struct dmabuf *dmabuf = NULL; - unsigned int i_scr; - - /* find an available virtual channel (instance of /dev/dsp) */ - - while (card != NULL) { - - /* - * If we are initializing and then fail, card could go - * away unuexpectedly while we are in the for() loop. - * So, check for card on each iteration before we check - * for card->initializing to avoid a possible oops. - * This usually only matters for times when the driver is - * autoloaded by kmod. - */ - for (i = 0; i < 50 && card && card->initializing; i++) { - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(HZ / 20); - } - - for (i = 0; i < NR_HW_CH && card && !card->initializing; i++) { - if (card->states[i] == NULL) { - state = card->states[i] = (struct ali_state *) kmalloc(sizeof(struct ali_state), GFP_KERNEL); - if (state == NULL) - return -ENOMEM; - memset(state, 0, sizeof(struct ali_state)); - dmabuf = &state->dmabuf; - goto found_virt; - } - } - card = card->next; - } - - /* no more virtual channel avaiable */ - if (!state) - return -ENODEV; -found_virt: - /* initialize the virtual channel */ - - state->virt = i; - state->card = card; - state->magic = ALI5455_STATE_MAGIC; - init_waitqueue_head(&dmabuf->wait); - mutex_init(&state->open_mutex); - file->private_data = state; - dmabuf->trigger = 0; - /* allocate hardware channels */ - if (file->f_mode & FMODE_READ) { - if ((dmabuf->read_channel = - card->alloc_rec_pcm_channel(card)) == NULL) { - kfree(card->states[i]); - card->states[i] = NULL; - return -EBUSY; - } - dmabuf->trigger |= PCM_ENABLE_INPUT; - ali_set_adc_rate(state, 8000); - } - if (file->f_mode & FMODE_WRITE) { - if (codec_independent_spdif_locked > 0) { - if ((dmabuf->codec_spdifout_channel = card->alloc_codec_spdifout_channel(card)) == NULL) { - kfree(card->states[i]); - card->states[i] = NULL; - return -EBUSY; - } - dmabuf->trigger |= SPDIF_ENABLE_OUTPUT; - ali_set_codecspdifout_rate(state, codec_independent_spdif_locked); //It must add - i_scr = inl(state->card->iobase + ALI_SCR); - if ((i_scr & 0x00300000) == 0x00100000) { - ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked); - } else { - if ((i_scr & 0x00300000) == 0x00200000) { - ali_set_spdif_output(state, AC97_EA_SPSA_6_9, codec_independent_spdif_locked); - } else { - if ((i_scr & 0x00300000) == 0x00300000) { - ali_set_spdif_output(state, AC97_EA_SPSA_10_11, codec_independent_spdif_locked); - } else { - ali_set_spdif_output(state, AC97_EA_SPSA_7_8, codec_independent_spdif_locked); - } - } - - } - } else { - if (controller_independent_spdif_locked > 0) { - if ((dmabuf->controller_spdifout_channel = card->alloc_controller_spdifout_channel(card)) == NULL) { - kfree(card->states[i]); - card->states[i] = NULL; - return -EBUSY; - } - dmabuf->trigger |= SPDIF_ENABLE_OUTPUT; - ali_set_spdifout_rate(state, controller_independent_spdif_locked); - } else { - if ((dmabuf->write_channel = card->alloc_pcm_channel(card)) == NULL) { - kfree(card->states[i]); - card->states[i] = NULL; - return -EBUSY; - } - /* Initialize to 8kHz? What if we don't support 8kHz? */ - /* Let's change this to check for S/PDIF stuff */ - - dmabuf->trigger |= PCM_ENABLE_OUTPUT; - if (codec_pcmout_share_spdif_locked) { - ali_set_dac_rate(state, codec_pcmout_share_spdif_locked); - ali_set_spdif_output(state, AC97_EA_SPSA_3_4, codec_pcmout_share_spdif_locked); - } else { - ali_set_dac_rate(state, 8000); - } - } - - } - } - - /* set default sample format. According to OSS Programmer's Guide /dev/dsp - should be default to unsigned 8-bits, mono, with sample rate 8kHz and - /dev/dspW will accept 16-bits sample, but we don't support those so we - set it immediately to stereo and 16bit, which is all we do support */ - dmabuf->fmt |= ALI5455_FMT_16BIT | ALI5455_FMT_STEREO; - dmabuf->ossfragsize = 0; - dmabuf->ossmaxfrags = 0; - dmabuf->subdivision = 0; - state->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE); - outl(0x00000000, card->iobase + ALI_INTERRUPTCR); - outl(0x00000000, card->iobase + ALI_INTERRUPTSR); - return nonseekable_open(inode, file); -} - -static int ali_release(struct inode *inode, struct file *file) -{ - struct ali_state *state = (struct ali_state *) file->private_data; - struct ali_card *card = state->card; - struct dmabuf *dmabuf = &state->dmabuf; - unsigned long flags; - lock_kernel(); - - /* stop DMA state machine and free DMA buffers/channels */ - if (dmabuf->trigger & PCM_ENABLE_OUTPUT) - drain_dac(state, 0); - - if (dmabuf->trigger & SPDIF_ENABLE_OUTPUT) - drain_spdifout(state, 0); - - if (dmabuf->trigger & PCM_ENABLE_INPUT) - stop_adc(state); - - spin_lock_irqsave(&card->lock, flags); - dealloc_dmabuf(state); - if (file->f_mode & FMODE_WRITE) { - if (codec_independent_spdif_locked > 0) { - state->card->free_pcm_channel(state->card, dmabuf->codec_spdifout_channel->num); - } else { - if (controller_independent_spdif_locked > 0) - state->card->free_pcm_channel(state->card, - dmabuf->controller_spdifout_channel->num); - else state->card->free_pcm_channel(state->card, - dmabuf->write_channel->num); - } - } - if (file->f_mode & FMODE_READ) - state->card->free_pcm_channel(state->card, dmabuf->read_channel->num); - - state->card->states[state->virt] = NULL; - kfree(state); - spin_unlock_irqrestore(&card->lock, flags); - unlock_kernel(); - return 0; -} - -static /*const */ struct file_operations ali_audio_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .read = ali_read, - .write = ali_write, - .poll = ali_poll, - .ioctl = ali_ioctl, - .mmap = ali_mmap, - .open = ali_open, - .release = ali_release, -}; - -/* Read AC97 codec registers */ -static u16 ali_ac97_get(struct ac97_codec *dev, u8 reg) -{ - struct ali_card *card = dev->private_data; - int count1 = 100; - char val; - unsigned short int data = 0, count, addr1, addr2 = 0; - - spin_lock(&card->ac97_lock); - while (count1-- && (inl(card->iobase + ALI_CAS) & 0x80000000)) - udelay(1); - - addr1 = reg; - reg |= 0x0080; - for (count = 0; count < 0x7f; count++) { - val = inb(card->iobase + ALI_CSPSR); - if (val & 0x08) - break; - } - if (count == 0x7f) - { - spin_unlock(&card->ac97_lock); - return -1; - } - outw(reg, (card->iobase + ALI_CPR) + 2); - for (count = 0; count < 0x7f; count++) { - val = inb(card->iobase + ALI_CSPSR); - if (val & 0x02) { - data = inw(card->iobase + ALI_SPR); - addr2 = inw((card->iobase + ALI_SPR) + 2); - break; - } - } - spin_unlock(&card->ac97_lock); - if (count == 0x7f) - return -1; - if (addr2 != addr1) - return -1; - return ((u16) data); -} - -/* write ac97 codec register */ - -static void ali_ac97_set(struct ac97_codec *dev, u8 reg, u16 data) -{ - struct ali_card *card = dev->private_data; - int count1 = 100; - char val; - unsigned short int count; - - spin_lock(&card->ac97_lock); - while (count1-- && (inl(card->iobase + ALI_CAS) & 0x80000000)) - udelay(1); - - for (count = 0; count < 0x7f; count++) { - val = inb(card->iobase + ALI_CSPSR); - if (val & 0x08) - break; - } - if (count == 0x7f) { - printk(KERN_WARNING "ali_ac97_set: AC97 codec register access timed out. \n"); - spin_unlock(&card->ac97_lock); - return; - } - outw(data, (card->iobase + ALI_CPR)); - outb(reg, (card->iobase + ALI_CPR) + 2); - for (count = 0; count < 0x7f; count++) { - val = inb(card->iobase + ALI_CSPSR); - if (val & 0x01) - break; - } - spin_unlock(&card->ac97_lock); - if (count == 0x7f) - printk(KERN_WARNING "ali_ac97_set: AC97 codec register access timed out. \n"); - return; -} - -/* OSS /dev/mixer file operation methods */ - -static int ali_open_mixdev(struct inode *inode, struct file *file) -{ - int i; - int minor = iminor(inode); - struct ali_card *card = devs; - for (card = devs; card != NULL; card = card->next) { - /* - * If we are initializing and then fail, card could go - * away unuexpectedly while we are in the for() loop. - * So, check for card on each iteration before we check - * for card->initializing to avoid a possible oops. - * This usually only matters for times when the driver is - * autoloaded by kmod. - */ - for (i = 0; i < 50 && card && card->initializing; i++) { - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(HZ / 20); - } - for (i = 0; i < NR_AC97 && card && !card->initializing; i++) - if (card->ac97_codec[i] != NULL - && card->ac97_codec[i]->dev_mixer == minor) { - file->private_data = card->ac97_codec[i]; - return nonseekable_open(inode, file); - } - } - return -ENODEV; -} - -static int ali_ioctl_mixdev(struct inode *inode, - struct file *file, - unsigned int cmd, unsigned long arg) -{ - struct ac97_codec *codec = (struct ac97_codec *) file->private_data; - return codec->mixer_ioctl(codec, cmd, arg); -} - -static /*const */ struct file_operations ali_mixer_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .ioctl = ali_ioctl_mixdev, - .open = ali_open_mixdev, -}; - -/* AC97 codec initialisation. These small functions exist so we don't - duplicate code between module init and apm resume */ - -static inline int ali_ac97_exists(struct ali_card *card, int ac97_number) -{ - unsigned int i = 1; - u32 reg = inl(card->iobase + ALI_RTSR); - if (ac97_number) { - while (i < 100) { - - reg = inl(card->iobase + ALI_RTSR); - if (reg & 0x40) { - break; - } else { - outl(reg | 0x00000040, - card->iobase + 0x34); - udelay(1); - } - i++; - } - - } else { - while (i < 100) { - reg = inl(card->iobase + ALI_RTSR); - if (reg & 0x80) { - break; - } else { - outl(reg | 0x00000080, - card->iobase + 0x34); - udelay(1); - } - i++; - } - } - - if (ac97_number) - return reg & 0x40; - else - return reg & 0x80; -} - -static inline int ali_ac97_enable_variable_rate(struct ac97_codec *codec) -{ - ali_ac97_set(codec, AC97_EXTENDED_STATUS, 9); - ali_ac97_set(codec, AC97_EXTENDED_STATUS, ali_ac97_get(codec, AC97_EXTENDED_STATUS) | 0xE800); - return (ali_ac97_get(codec, AC97_EXTENDED_STATUS) & 1); -} - - -static int ali_ac97_probe_and_powerup(struct ali_card *card, struct ac97_codec *codec) -{ - /* Returns 0 on failure */ - int i; - u16 addr; - if (ac97_probe_codec(codec) == 0) - return 0; - /* ac97_probe_codec is success ,then begin to init codec */ - ali_ac97_set(codec, AC97_RESET, 0xffff); - if (card->channel[0].used == 1) { - ali_ac97_set(codec, AC97_RECORD_SELECT, 0x0000); - ali_ac97_set(codec, AC97_LINEIN_VOL, 0x0808); - ali_ac97_set(codec, AC97_RECORD_GAIN, 0x0F0F); - } - - if (card->channel[2].used == 1) //if MICin then init codec - { - ali_ac97_set(codec, AC97_RECORD_SELECT, 0x0000); - ali_ac97_set(codec, AC97_MIC_VOL, 0x8808); - ali_ac97_set(codec, AC97_RECORD_GAIN, 0x0F0F); - ali_ac97_set(codec, AC97_RECORD_GAIN_MIC, 0x0000); - } - - ali_ac97_set(codec, AC97_MASTER_VOL_STEREO, 0x0000); - ali_ac97_set(codec, AC97_HEADPHONE_VOL, 0x0000); - ali_ac97_set(codec, AC97_PCMOUT_VOL, 0x0000); - ali_ac97_set(codec, AC97_CD_VOL, 0x0808); - ali_ac97_set(codec, AC97_VIDEO_VOL, 0x0808); - ali_ac97_set(codec, AC97_AUX_VOL, 0x0808); - ali_ac97_set(codec, AC97_PHONE_VOL, 0x8048); - ali_ac97_set(codec, AC97_PCBEEP_VOL, 0x0000); - ali_ac97_set(codec, AC97_GENERAL_PURPOSE, AC97_GP_MIX); - ali_ac97_set(codec, AC97_MASTER_VOL_MONO, 0x0000); - ali_ac97_set(codec, 0x38, 0x0000); - addr = ali_ac97_get(codec, 0x2a); - ali_ac97_set(codec, 0x2a, addr | 0x0001); - addr = ali_ac97_get(codec, 0x2a); - addr = ali_ac97_get(codec, 0x28); - ali_ac97_set(codec, 0x2c, 0xbb80); - addr = ali_ac97_get(codec, 0x2c); - /* power it all up */ - ali_ac97_set(codec, AC97_POWER_CONTROL, - ali_ac97_get(codec, AC97_POWER_CONTROL) & ~0x7f00); - /* wait for analog ready */ - for (i = 10; i && ((ali_ac97_get(codec, AC97_POWER_CONTROL) & 0xf) != 0xf); i--) { - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(HZ / 20); - } - /* FIXME !! */ - i++; - return i; -} - - -/* I clone ali5455(2.4.7 ) not clone i810_audio(2.4.18) */ - -static int ali_reset_5455(struct ali_card *card) -{ - outl(0x80000003, card->iobase + ALI_SCR); - outl(0x83838383, card->iobase + ALI_FIFOCR1); - outl(0x83838383, card->iobase + ALI_FIFOCR2); - if (controller_pcmout_share_spdif_locked > 0) { - outl((inl(card->iobase + ALI_SPDIFICS) | 0x00000001), - card->iobase + ALI_SPDIFICS); - outl(0x0408000a, card->iobase + ALI_INTERFACECR); - } else { - if (codec_independent_spdif_locked > 0) { - outl((inl(card->iobase + ALI_SCR) | 0x00100000), card->iobase + ALI_SCR); // now I select slot 7 & 8 - outl(0x00200000, card->iobase + ALI_INTERFACECR); //enable codec independent spdifout - } else - outl(0x04080002, card->iobase + ALI_INTERFACECR); - } - - outl(0x00000000, card->iobase + ALI_INTERRUPTCR); - outl(0x00000000, card->iobase + ALI_INTERRUPTSR); - if (controller_independent_spdif_locked > 0) - outl((inl(card->iobase + ALI_SPDIFICS) | 0x00000001), - card->iobase + ALI_SPDIFICS); - return 1; -} - - -static int ali_ac97_random_init_stuff(struct ali_card - *card) -{ - u32 reg = inl(card->iobase + ALI_SCR); - int i = 0; - reg = inl(card->iobase + ALI_SCR); - if ((reg & 2) == 0) /* Cold required */ - reg |= 2; - else - reg |= 1; /* Warm */ - reg &= ~0x80000000; /* ACLink on */ - outl(reg, card->iobase + ALI_SCR); - - while (i < 10) { - if ((inl(card->iobase + 0x18) & (1 << 1)) == 0) - break; - current->state = TASK_UNINTERRUPTIBLE; - schedule_timeout(HZ / 20); - i++; - } - if (i == 10) { - printk(KERN_ERR "ali_audio: AC'97 reset failed.\n"); - return 0; - } - - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(HZ / 2); - return 1; -} - -/* AC97 codec initialisation. */ - -static int __devinit ali_ac97_init(struct ali_card *card) -{ - int num_ac97 = 0; - int total_channels = 0; - struct ac97_codec *codec; - u16 eid; - - if (!ali_ac97_random_init_stuff(card)) - return 0; - - /* Number of channels supported */ - /* What about the codec? Just because the ICH supports */ - /* multiple channels doesn't mean the codec does. */ - /* we'll have to modify this in the codec section below */ - /* to reflect what the codec has. */ - /* ICH and ICH0 only support 2 channels so don't bother */ - /* to check.... */ - inl(card->iobase + ALI_CPR); - card->channels = 2; - - for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) { - - /* Assume codec isn't available until we go through the - * gauntlet below */ - card->ac97_codec[num_ac97] = NULL; - /* The ICH programmer's reference says you should */ - /* check the ready status before probing. So we chk */ - /* What do we do if it's not ready? Wait and try */ - /* again, or abort? */ - if (!ali_ac97_exists(card, num_ac97)) { - if (num_ac97 == 0) - printk(KERN_ERR "ali_audio: Primary codec not ready.\n"); - break; - } - - if ((codec = ac97_alloc_codec()) == NULL) - return -ENOMEM; - /* initialize some basic codec information, other fields will be filled - in ac97_probe_codec */ - codec->private_data = card; - codec->id = num_ac97; - codec->codec_read = ali_ac97_get; - codec->codec_write = ali_ac97_set; - if (!ali_ac97_probe_and_powerup(card, codec)) { - printk(KERN_ERR "ali_audio: timed out waiting for codec %d analog ready", - num_ac97); - kfree(codec); - break; /* it didn't work */ - } - - /* Store state information about S/PDIF transmitter */ - card->ac97_status = 0; - /* Don't attempt to get eid until powerup is complete */ - eid = ali_ac97_get(codec, AC97_EXTENDED_ID); - if (eid == 0xFFFF) { - printk(KERN_ERR "ali_audio: no codec attached ?\n"); - kfree(codec); - break; - } - - card->ac97_features = eid; - /* Now check the codec for useful features to make up for - the dumbness of the ali5455 hardware engine */ - if (!(eid & 0x0001)) - printk(KERN_WARNING - "ali_audio: only 48Khz playback available.\n"); - else { - if (!ali_ac97_enable_variable_rate(codec)) { - printk(KERN_WARNING - "ali_audio: Codec refused to allow VRA, using 48Khz only.\n"); - card->ac97_features &= ~1; - } - } - - /* Determine how many channels the codec(s) support */ - /* - The primary codec always supports 2 */ - /* - If the codec supports AMAP, surround DACs will */ - /* automaticlly get assigned to slots. */ - /* * Check for surround DACs and increment if */ - /* found. */ - /* - Else check if the codec is revision 2.2 */ - /* * If surround DACs exist, assign them to slots */ - /* and increment channel count. */ - - /* All of this only applies to ICH2 and above. ICH */ - /* and ICH0 only support 2 channels. ICH2 will only */ - /* support multiple codecs in a "split audio" config. */ - /* as described above. */ - - /* TODO: Remove all the debugging messages! */ - - if ((eid & 0xc000) == 0) /* primary codec */ - total_channels += 2; - if ((codec->dev_mixer = register_sound_mixer(&ali_mixer_fops, -1)) < 0) { - printk(KERN_ERR "ali_audio: couldn't register mixer!\n"); - kfree(codec); - break; - } - card->ac97_codec[num_ac97] = codec; - } - /* pick the minimum of channels supported by ICHx or codec(s) */ - card->channels = (card->channels > total_channels) ? total_channels : card->channels; - return num_ac97; -} - -static void __devinit ali_configure_clocking(void) -{ - struct ali_card *card; - struct ali_state *state; - struct dmabuf *dmabuf; - unsigned int i, offset, new_offset; - unsigned long flags; - card = devs; - - /* We could try to set the clocking for multiple cards, but can you even have - * more than one ali in a machine? Besides, clocking is global, so unless - * someone actually thinks more than one ali in a machine is possible and - * decides to rewrite that little bit, setting the rate for more than one card - * is a waste of time. - */ - if (card != NULL) { - state = card->states[0] = (struct ali_state *) - kmalloc(sizeof(struct ali_state), GFP_KERNEL); - if (state == NULL) - return; - memset(state, 0, sizeof(struct ali_state)); - dmabuf = &state->dmabuf; - dmabuf->write_channel = card->alloc_pcm_channel(card); - state->virt = 0; - state->card = card; - state->magic = ALI5455_STATE_MAGIC; - init_waitqueue_head(&dmabuf->wait); - mutex_init(&state->open_mutex); - dmabuf->fmt = ALI5455_FMT_STEREO | ALI5455_FMT_16BIT; - dmabuf->trigger = PCM_ENABLE_OUTPUT; - ali_set_dac_rate(state, 48000); - if (prog_dmabuf(state, 0) != 0) - goto config_out_nodmabuf; - - if (dmabuf->dmasize < 16384) - goto config_out; - - dmabuf->count = dmabuf->dmasize; - outb(31, card->iobase + dmabuf->write_channel->port + OFF_LVI); - - local_irq_save(flags); - start_dac(state); - offset = ali_get_dma_addr(state, 0); - mdelay(50); - new_offset = ali_get_dma_addr(state, 0); - stop_dac(state); - - outb(2, card->iobase + dmabuf->write_channel->port + OFF_CR); - local_irq_restore(flags); - - i = new_offset - offset; - - if (i == 0) - goto config_out; - i = i / 4 * 20; - if (i > 48500 || i < 47500) { - clocking = clocking * clocking / i; - } -config_out: - dealloc_dmabuf(state); -config_out_nodmabuf: - state->card->free_pcm_channel(state->card, state->dmabuf. write_channel->num); - kfree(state); - card->states[0] = NULL; - } -} - -/* install the driver, we do not allocate hardware channel nor DMA buffer now, they are defered - until "ACCESS" time (in prog_dmabuf called by open/read/write/ioctl/mmap) */ - -static int __devinit ali_probe(struct pci_dev *pci_dev, - const struct pci_device_id *pci_id) -{ - struct ali_card *card; - if (pci_enable_device(pci_dev)) - return -EIO; - if (pci_set_dma_mask(pci_dev, ALI5455_DMA_MASK)) { - printk(KERN_ERR "ali5455: architecture does not support" - " 32bit PCI busmaster DMA\n"); - return -ENODEV; - } - - if ((card = kmalloc(sizeof(struct ali_card), GFP_KERNEL)) == NULL) { - printk(KERN_ERR "ali_audio: out of memory\n"); - return -ENOMEM; - } - memset(card, 0, sizeof(*card)); - card->initializing = 1; - card->iobase = pci_resource_start(pci_dev, 0); - card->pci_dev = pci_dev; - card->pci_id = pci_id->device; - card->irq = pci_dev->irq; - card->next = devs; - card->magic = ALI5455_CARD_MAGIC; -#ifdef CONFIG_PM - card->pm_suspended = 0; -#endif - spin_lock_init(&card->lock); - spin_lock_init(&card->ac97_lock); - devs = card; - pci_set_master(pci_dev); - printk(KERN_INFO "ali: %s found at IO 0x%04lx, IRQ %d\n", - card_names[pci_id->driver_data], card->iobase, card->irq); - card->alloc_pcm_channel = ali_alloc_pcm_channel; - card->alloc_rec_pcm_channel = ali_alloc_rec_pcm_channel; - card->alloc_rec_mic_channel = ali_alloc_rec_mic_channel; - card->alloc_codec_spdifout_channel = ali_alloc_codec_spdifout_channel; - card->alloc_controller_spdifout_channel = ali_alloc_controller_spdifout_channel; - card->free_pcm_channel = ali_free_pcm_channel; - card->channel[0].offset = 0; - card->channel[0].port = 0x40; - card->channel[0].num = 0; - card->channel[1].offset = 0; - card->channel[1].port = 0x50; - card->channel[1].num = 1; - card->channel[2].offset = 0; - card->channel[2].port = 0x60; - card->channel[2].num = 2; - card->channel[3].offset = 0; - card->channel[3].port = 0x70; - card->channel[3].num = 3; - card->channel[4].offset = 0; - card->channel[4].port = 0xb0; - card->channel[4].num = 4; - /* claim our iospace and irq */ - request_region(card->iobase, 256, card_names[pci_id->driver_data]); - if (request_irq(card->irq, &ali_interrupt, IRQF_SHARED, - card_names[pci_id->driver_data], card)) { - printk(KERN_ERR "ali_audio: unable to allocate irq %d\n", - card->irq); - release_region(card->iobase, 256); - kfree(card); - return -ENODEV; - } - - if (ali_reset_5455(card) <= 0) { - unregister_sound_dsp(card->dev_audio); - release_region(card->iobase, 256); - free_irq(card->irq, card); - kfree(card); - return -ENODEV; - } - - /* initialize AC97 codec and register /dev/mixer */ - if (ali_ac97_init(card) < 0) { - release_region(card->iobase, 256); - free_irq(card->irq, card); - kfree(card); - return -ENODEV; - } - - pci_set_drvdata(pci_dev, card); - - if (clocking == 0) { - clocking = 48000; - ali_configure_clocking(); - } - - /* register /dev/dsp */ - if ((card->dev_audio = register_sound_dsp(&ali_audio_fops, -1)) < 0) { - int i; - printk(KERN_ERR"ali_audio: couldn't register DSP device!\n"); - release_region(card->iobase, 256); - free_irq(card->irq, card); - for (i = 0; i < NR_AC97; i++) - if (card->ac97_codec[i] != NULL) { - unregister_sound_mixer(card->ac97_codec[i]->dev_mixer); - kfree(card->ac97_codec[i]); - } - kfree(card); - return -ENODEV; - } - card->initializing = 0; - return 0; -} - -static void __devexit ali_remove(struct pci_dev *pci_dev) -{ - int i; - struct ali_card *card = pci_get_drvdata(pci_dev); - /* free hardware resources */ - free_irq(card->irq, devs); - release_region(card->iobase, 256); - /* unregister audio devices */ - for (i = 0; i < NR_AC97; i++) - if (card->ac97_codec[i] != NULL) { - unregister_sound_mixer(card->ac97_codec[i]-> - dev_mixer); - ac97_release_codec(card->ac97_codec[i]); - card->ac97_codec[i] = NULL; - } - unregister_sound_dsp(card->dev_audio); - kfree(card); -} - -#ifdef CONFIG_PM -static int ali_pm_suspend(struct pci_dev *dev, pm_message_t pm_state) -{ - struct ali_card *card = pci_get_drvdata(dev); - struct ali_state *state; - unsigned long flags; - struct dmabuf *dmabuf; - int i, num_ac97; - - if (!card) - return 0; - spin_lock_irqsave(&card->lock, flags); - card->pm_suspended = 1; - for (i = 0; i < NR_HW_CH; i++) { - state = card->states[i]; - if (!state) - continue; - /* this happens only if there are open files */ - dmabuf = &state->dmabuf; - if (dmabuf->enable & DAC_RUNNING || - (dmabuf->count - && (dmabuf->trigger & PCM_ENABLE_OUTPUT))) { - state->pm_saved_dac_rate = dmabuf->rate; - stop_dac(state); - } else { - state->pm_saved_dac_rate = 0; - } - if (dmabuf->enable & ADC_RUNNING) { - state->pm_saved_adc_rate = dmabuf->rate; - stop_adc(state); - } else { - state->pm_saved_adc_rate = 0; - } - dmabuf->ready = 0; - dmabuf->swptr = dmabuf->hwptr = 0; - dmabuf->count = dmabuf->total_bytes = 0; - } - - spin_unlock_irqrestore(&card->lock, flags); - /* save mixer settings */ - for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) { - struct ac97_codec *codec = card->ac97_codec[num_ac97]; - if (!codec) - continue; - for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) { - if ((supported_mixer(codec, i)) && (codec->read_mixer)) { - card->pm_saved_mixer_settings[i][num_ac97] = codec->read_mixer(codec, i); - } - } - } - pci_save_state(dev); /* XXX do we need this? */ - pci_disable_device(dev); /* disable busmastering */ - pci_set_power_state(dev, 3); /* Zzz. */ - return 0; -} - - -static int ali_pm_resume(struct pci_dev *dev) -{ - int num_ac97, i = 0; - struct ali_card *card = pci_get_drvdata(dev); - pci_enable_device(dev); - pci_restore_state(dev); - /* observation of a toshiba portege 3440ct suggests that the - hardware has to be more or less completely reinitialized from - scratch after an apm suspend. Works For Me. -dan */ - ali_ac97_random_init_stuff(card); - for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) { - struct ac97_codec *codec = card->ac97_codec[num_ac97]; - /* check they haven't stolen the hardware while we were - away */ - if (!codec || !ali_ac97_exists(card, num_ac97)) { - if (num_ac97) - continue; - else - BUG(); - } - if (!ali_ac97_probe_and_powerup(card, codec)) - BUG(); - if ((card->ac97_features & 0x0001)) { - /* at probe time we found we could do variable - rates, but APM suspend has made it forget - its magical powers */ - if (!ali_ac97_enable_variable_rate(codec)) - BUG(); - } - /* we lost our mixer settings, so restore them */ - for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) { - if (supported_mixer(codec, i)) { - int val = card->pm_saved_mixer_settings[i][num_ac97]; - codec->mixer_state[i] = val; - codec->write_mixer(codec, i, - (val & 0xff), - ((val >> 8) & 0xff)); - } - } - } - - /* we need to restore the sample rate from whatever it was */ - for (i = 0; i < NR_HW_CH; i++) { - struct ali_state *state = card->states[i]; - if (state) { - if (state->pm_saved_adc_rate) - ali_set_adc_rate(state, state->pm_saved_adc_rate); - if (state->pm_saved_dac_rate) - ali_set_dac_rate(state, state->pm_saved_dac_rate); - } - } - - card->pm_suspended = 0; - /* any processes that were reading/writing during the suspend - probably ended up here */ - for (i = 0; i < NR_HW_CH; i++) { - struct ali_state *state = card->states[i]; - if (state) - wake_up(&state->dmabuf.wait); - } - return 0; -} -#endif /* CONFIG_PM */ - -MODULE_AUTHOR(""); -MODULE_DESCRIPTION("ALI 5455 audio support"); -MODULE_LICENSE("GPL"); -module_param(clocking, int, 0); -/* FIXME: bool? */ -module_param(strict_clocking, uint, 0); -module_param(codec_pcmout_share_spdif_locked, uint, 0); -module_param(codec_independent_spdif_locked, uint, 0); -module_param(controller_pcmout_share_spdif_locked, uint, 0); -module_param(controller_independent_spdif_locked, uint, 0); -#define ALI5455_MODULE_NAME "ali5455" -static struct pci_driver ali_pci_driver = { - .name = ALI5455_MODULE_NAME, - .id_table = ali_pci_tbl, - .probe = ali_probe, - .remove = __devexit_p(ali_remove), -#ifdef CONFIG_PM - .suspend = ali_pm_suspend, - .resume = ali_pm_resume, -#endif /* CONFIG_PM */ -}; - -static int __init ali_init_module(void) -{ - printk(KERN_INFO "ALI 5455 + AC97 Audio, version " - DRIVER_VERSION ", " __TIME__ " " __DATE__ "\n"); - - if (codec_independent_spdif_locked > 0) { - if (codec_independent_spdif_locked == 32000 - || codec_independent_spdif_locked == 44100 - || codec_independent_spdif_locked == 48000) { - printk(KERN_INFO "ali_audio: Enabling S/PDIF at sample rate %dHz.\n", codec_independent_spdif_locked); - } else { - printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n"); - codec_independent_spdif_locked = 0; - } - } - if (controller_independent_spdif_locked > 0) { - if (controller_independent_spdif_locked == 32000 - || controller_independent_spdif_locked == 44100 - || controller_independent_spdif_locked == 48000) { - printk(KERN_INFO "ali_audio: Enabling S/PDIF at sample rate %dHz.\n", controller_independent_spdif_locked); - } else { - printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n"); - controller_independent_spdif_locked = 0; - } - } - - if (codec_pcmout_share_spdif_locked > 0) { - if (codec_pcmout_share_spdif_locked == 32000 - || codec_pcmout_share_spdif_locked == 44100 - || codec_pcmout_share_spdif_locked == 48000) { - printk(KERN_INFO "ali_audio: Enabling S/PDIF at sample rate %dHz.\n", codec_pcmout_share_spdif_locked); - } else { - printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n"); - codec_pcmout_share_spdif_locked = 0; - } - } - if (controller_pcmout_share_spdif_locked > 0) { - if (controller_pcmout_share_spdif_locked == 32000 - || controller_pcmout_share_spdif_locked == 44100 - || controller_pcmout_share_spdif_locked == 48000) { - printk(KERN_INFO "ali_audio: Enabling controller S/PDIF at sample rate %dHz.\n", controller_pcmout_share_spdif_locked); - } else { - printk(KERN_INFO "ali_audio: S/PDIF can only be locked to 32000, 44100, or 48000Hz.\n"); - controller_pcmout_share_spdif_locked = 0; - } - } - return pci_register_driver(&ali_pci_driver); -} - -static void __exit ali_cleanup_module(void) -{ - pci_unregister_driver(&ali_pci_driver); -} - -module_init(ali_init_module); -module_exit(ali_cleanup_module); -/* -Local Variables: -c-basic-offset: 8 -End: -*/ |
