aboutsummaryrefslogtreecommitdiff
path: root/sound/oss/ali5455.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/oss/ali5455.c')
-rw-r--r--sound/oss/ali5455.c3735
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 && 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:
-*/