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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 70dcd703a66..00000000000 --- 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 &a |