| Kernel v2.4.19-rc1-ac4 /ali5455.c |
|---|
| Filename: | /ali5455.c |
| Lines Added: | 4678 |
| Lines Deleted: | 0 |
| Also changed in: |
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  2.4.19-rc1-ac4
 ali5455.c
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.19rc1/ali5455.c linux.19rc1-ac4/ali5455.c
--- linux.19rc1/ali5455.c Thu Jan 1 01:00:00 1970
+++ linux.19rc1-ac4/ali5455.c Sun Jul 14 22:06:36 2002
@@ -0,0 +1,4678 @@
+/*
+ * ALI ali5455 and friends ICH driver for Linux
+ * LEI HU <Lei_Hu@ali.com.tw>
+ *
+ * Built from:
+ * Low level code: Zach Brown (original nonworking ali OSS driver)
+ * Jaroslav Kysela <perex@suse.cz> (working ALSA driver)
+ *
+ * Framework: Thomas Sailer <sailer@ife.ee.ethz.ch>
+ * Extended by: Zach Brown <zab@redhat.com>
+ * and others..
+ *
+ * Hardware Provided By:
+ * Analog Devices (A major AC97 codec maker)
+ * Intel Corp (you've probably heard of them already)
+ *
+ * AC97 clues and assistance provided by
+ * Analog Devices
+ * Zach 'Fufu' Brown
+ * Jeff Garzik
+ *
+ * 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.
+ *
+ *
+ * Intel 810 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.
+ *
+ * Fix The Sound On Dell
+ *
+ * Not everyone uses 48KHz. We know of no way to detect this reliably
+ * and certainly not to get the right data. If your ali audio sounds
+ * stupid you may need to investigate other speeds. According to Analog
+ * they tend to use a 14.318MHz clock which gives you a base rate of
+ * 41194Hz.
+ *
+ * This is available via the 'ftsodell=1' option.
+ *
+ * If you need to force a specific rate set the clocking= option
+ *
+ * This driver is cursed. (Ben LaHaise)
+ */
+
+#include <linux/module.h>
+#include <linux/version.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/wrapper.h>
+#include <asm/uaccess.h>
+#include <asm/hardirq.h>
+
+#ifndef PCI_DEVICE_ID_INTEL_82801
+#define PCI_DEVICE_ID_INTEL_82801 0x2415
+#endif
+#ifndef PCI_DEVICE_ID_INTEL_82901
+#define PCI_DEVICE_ID_INTEL_82901 0x2425
+#endif
+#ifndef PCI_DEVICE_ID_INTEL_ICH2
+#define PCI_DEVICE_ID_INTEL_ICH2 0x2445
+#endif
+#ifndef PCI_DEVICE_ID_INTEL_ICH3
+#define PCI_DEVICE_ID_INTEL_ICH3 0x2485
+#endif
+#ifndef PCI_DEVICE_ID_INTEL_440MX
+#define PCI_DEVICE_ID_INTEL_440MX 0x7195
+#endif
+#ifndef PCI_DEVICE_ID_SI_7012
+#define PCI_DEVICE_ID_SI_7012 0x7012
+#endif
+#ifndef PCI_DEVICE_ID_NVIDIA_MCP1_AUDIO
+#define PCI_DEVICE_ID_NVIDIA_MCP1_AUDIO 0x01b1
+#endif
+
+#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 ftsodell=0;
+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 DEBUG
+#define DEBUG2
+#define DEBUG_INTERRUPTS
+#define DEBUG_MMAP
+
+#define ADC_RUNNING 1
+#define DAC_RUNNING 2
+#define CODEC_SPDIFOUT_RUNNING 8
+#define CONTROLLER_SPDIFOUT_RUNNING 4
+
+#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
+ seperately 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 seperate 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 "0.02"
+
+/* 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 [] __initdata = {
+ {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 semaphore open_sem;
+ 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;
+
+ /* PCI device stuff */
+ struct pci_dev * pci_dev;
+ u16 pci_id;
+#ifdef CONFIG_PM
+ u16 pm_suspended;
+ u32 pm_save_state[64/sizeof(u32)];
+ 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)
+{
+ printk("ali_alloc_pcm_channel is called \n");
+ 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)
+{
+ printk("ali_alloc_rec_pcm_channel is called \n");
+ 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)
+{
+ printk("ali_alloc_rec_mic_channel is called \n");
+ 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)
+{
+ printk("ali_alloc_codec_spdifout_channel is called \n");
+ 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)
+{
+ printk("ali_alloc_controller_spdifout_channel is called \n");
+ 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)
+{
+ printk("ali_free_pcm_channel is called \n");
+ 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;
+ printk("ali_valid_spdif_rate is called \n");
+#ifdef DEBUG
+ printk ( "ali_audio: codec = %s, codec_id = 0x%08lx\n", codec->name, id);
+#endif
+ 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];
+
+ printk("ali_set_spdif_output is called \n");
+ if(!(state->card->ac97_features & 4)) {
+#ifdef DEBUG
+ printk(KERN_WARNING "ali_audio: S/PDIF transmitter not available.\n");
+#endif
+ 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);
+ printk("AC97_MASTER_VOL_STEREO =%d \n",vol);
+ 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:
+#ifdef DEBUG
+ printk(KERN_WARNING "ali_audio: %d sample rate not supported by S/PDIF.\n", rate);
+#endif
+ /* 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);
+ printk(" now slots =%d \n",slots);
+ 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;
+ //aud_reg = 0x000f;
+ //ali_ac97_set(codec, AC97_POWER_CONTROL, aud_reg);
+ ali_ac97_set(codec, AC97_POWER_CONTROL, aud_reg);
+ udelay(1);
+ printk("---------------\n");
+ printk("AC97_POWER_CONTROL codec 26h =%d \n",ali_ac97_get(codec, AC97_POWER_CONTROL) );
+ printk("AC97_EXTENDED_ID codec 28h =%d \n",ali_ac97_get(codec, AC97_EXTENDED_ID ));
+
+ state->card->ac97_status |= SPDIF_ON;
+
+ /* Check to make sure the configuration is valid */
+ aud_reg = ali_ac97_get(codec, AC97_EXTENDED_STATUS);
+ printk("AC97_EXTENDED_STATUS =%d \n",aud_reg);
+ if ( ! (aud_reg & 0x0400) ) {
+#ifdef DEBUG
+ printk(KERN_WARNING "ali_audio: S/PDIF transmitter configuration not valid (0x%04x).\n", aud_reg);
+#endif
+
+ /* turn off S/PDIF */
+ ali_ac97_set(codec, AC97_EXTENDED_STATUS, (aud_reg & ~AC97_EA_SPDIF));
+ state->card->ac97_status &= ~SPDIF_ON;
+ return;
+ }
+ printk("AC97_POWER_CONTROL 26h=%x\n",ali_ac97_get(codec, AC97_POWER_CONTROL));
+ printk("AC97_EXTENDED_ID codec 28h =%x \n",ali_ac97_get(codec, AC97_EXTENDED_ID ));
+ printk("AC97_EXTENDED_STATUS 2ah=%x \n",ali_ac97_get(codec, AC97_EXTENDED_STATUS));
+ printk("AC97_PCM_FRONT_DAC_RATE 2ch=%x\n",ali_ac97_get(codec, AC97_PCM_FRONT_DAC_RATE));
+ printk("AC97_RESERVED_3A 3ah=%x\n",ali_ac97_get(codec, AC97_RESERVED_3A));
+ if(codec_independent_spdif_locked>0){
+ aud_reg = ali_ac97_get(codec, 0x6a);
+ printk("codec 0x6a=%x\n",aud_reg);
+ ali_ac97_set(codec, 0x6a, (aud_reg&0xefff));
+ printk("codec 0x6a=%x\n",aud_reg);
+ }
+
+
+ /* Mute the analog output */
+ /* Should this only mute the PCM volume??? */
+ //printk("now vol =%d \n",vol);
+ //ali_ac97_set(codec, AC97_MASTER_VOL_STEREO, (vol | VOL_MUTED));
+ }
+}
+
+//end add support codec spdif out
+
+
+
+
+
+/* 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);
+
+ printk("ali_set_dac_channels is called \n");
+ 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];
+
+ printk("ali_set_dac_rate is called \n");
+ if(!(state->card->ac97_features&0x0001))
+ {
+ dmabuf->rate = clocking;
+#ifdef DEBUG
+ printk("Asked for %d Hz, but ac97_features says we only do %dHz. Sorry!\n",
+ rate,clocking);
+#endif
+ return clocking;
+ }
+
+ if (rate > 48000)
+ rate = 48000;
+ if (rate < 8000)
+ rate = 8000;
+ dmabuf->rate = rate;
+
+ /*
+ * Adjust for misclocked crap
+ */
+ // printk(" first rate =%d and clocking =%d \n",rate ,clocking);
+
+ rate = ( rate * clocking)/48000;
+
+ // printk(" second rate =%d and strict_clocking =%d \n",rate,strict_clocking);
+ 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;
+ }
+
+ //printk(" ----------------------\n");
+ /* if(rate != ali_ac97_get(codec, AC97_PCM_FRONT_DAC_RATE))
+ {
+
+
+ dacp=ali_ac97_get(codec, AC97_POWER_CONTROL);
+ ali_ac97_set(codec, AC97_POWER_CONTROL, dacp|0x0200);
+
+ ali_ac97_set(codec, AC97_PCM_FRONT_DAC_RATE, rate);
+ new_rate=ali_ac97_get(codec, AC97_PCM_FRONT_DAC_RATE);
+
+ ali_ac97_set(codec, AC97_POWER_CONTROL, dacp);
+ if(new_rate != rate) {
+ dmabuf->rate = (new_rate * 48000)/clocking;
+ rate = new_rate;
+ }
+ } */
+
+#ifdef DEBUG
+ printk("ali_audio: called ali_set_dac_rate : asked for %d, got %d\n", rate, dmabuf->rate);
+#endif
+ 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];
+
+ printk("ali_set_adc_rate is called \n");
+ 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;
+ }
+#ifdef DEBUG
+ printk("ali_audio: called ali_set_adc_rate : rate = %d/%d\n", dmabuf->rate, rate);
+#endif
+ 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;
+ u32 new_rate;
+ struct ac97_codec *codec=state->card->ac97_codec[0];
+
+ printk("ali_set_codecspdifout_rate is called \n");
+ if(!(state->card->ac97_features&0x0001))
+ {
+ dmabuf->rate = clocking;
+#ifdef DEBUG
+ printk("Asked for %d Hz, but ac97_features says we only do %dHz. Sorry!\n",
+ rate,clocking);
+#endif
+ return clocking;
+ }
+
+ if (rate > 48000)
+ rate = 48000;
+ if (rate < 8000)
+ rate = 8000;
+ dmabuf->rate = rate;
+
+
+
+
+#ifdef DEBUG
+ printk("ali_audio: called ali_set_codecspdifout_rate : asked for %d, got %d\n", rate, dmabuf->rate);
+#endif
+ //rate = new_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;
+
+ printk("ali_set_spdifout_rate is callled \n");
+ 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, bytes = 2;
+ unsigned int data;
+ printk("ali_get_dma_addr is called \n");
+ if (!dmabuf->enable)
+ return 0;
+
+ if (rec)
{
+ 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;
+
+ if(state->card->pci_id == PCI_DEVICE_ID_SI_7012) {
+ port_picb = port + OFF_SR;
+ bytes = 1;
+ } else
+ 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 - (bytes * 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;
+
+ printk("__stop_adc is called \n");
+ 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 ) ;
+
+ //outl( 0x07ff0000,card->iobase +0x08);//pause all dma
+ //udelay(1);
+ // wait for the card to acknowledge shutdown
+
+ // 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;
+ printk("stop_adc is called \n");
+ 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;
+
+ printk("__start_adc is called \n");
+
+ 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;
+
+ printk("start_adc is called \n");
+ 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;
+ u32 event;
+ printk("__stop_dac is called \n");
+ dmabuf->enable &= ~DAC_RUNNING;
+
+ outl(0x00020000,card->iobase+0x08);
+
+
+ outb(0, card->iobase + PO_CR);
+ while(inb(card->iobase+PO_CR) !=0);
+ // printk(" po_cr is success\n");
+ // outl(0x00020000,card->iobase+0x08);
+ // printk("pause dma success\n");
+ // while(inb(card->iobase+0x08) !=0);
+
+ // wait for the card to acknowledge shutdown
+ //while( inb(card->iobase + PO_CR) != 0 ) ;
+ // now clear any latent interrupt bits (like the halt bit)
+
+ outb( inb(card->iobase + PO_SR)|0x001e, card->iobase + PO_SR );
+
+ // outb( inb(card->iobase + PO_SR), card->iobase + PO_SR );
+
+
+
+ outl( inl(card->iobase + ALI_INTERRUPTSR) & INT_PCMOUT, card->iobase + ALI_INTERRUPTSR);
+ /* event=inl(card->iobase +ALI_INTERRUPTSR);
+ outl(event|0xff00a3,card->iobase +ALI_INTERRUPTSR);
+ udelay(100); */
+
+
+ // printk("__stop_dac is sucess \n");
+}
+
+static void stop_dac(struct ali_state *state)
+{
+ struct ali_card *card = state->card;
+ unsigned long flags;
+ // printk("stop_dac is called \n");
+ 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;
+
printk("__start_dac is called \n");
+ 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;
+ printk("start_dac is called \n");
+ 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;
+ u32 event;
+ printk("__stop_spdifout is called \n");
+ 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);
+ // printk(" po_cr is success\n");
+ // outl(0x00020000,card->iobase+0x08);
+ // printk("pause dma success\n");
+ // while(inb(card->iobase+0x08) !=0);
+
+ // wait for the card to acknowledge shutdown
+ //while( inb(card->iobase + PO_CR) != 0 ) ;
+ // now clear any latent interrupt bits (like the halt bit)
+
+ outb( inb(card->iobase + CODECSPDIFOUT_SR)|0x001e, card->iobase + CODECSPDIFOUT_SR );
+
+ // outb( inb(card->iobase + PO_SR), card->iobase + PO_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);
+ // printk(" po_cr is success\n");
+ // outl(0x00020000,card->iobase+0x08);
+ // printk("pause dma success\n");
+ // while(inb(card->iobase+0x08) !=0);
+
+ // wait for the card to acknowledge shutdown
+ //while( inb(card->iobase + PO_CR) != 0 ) ;
+ // now clear any latent interrupt bits (like the halt bit)
+
+ outb( inb(card->iobase + CONTROLLERSPDIFOUT_SR)|0x001e, card->iobase + CONTROLLERSPDIFOUT_SR );
+
+ // outb( inb(card->iobase + PO_SR), card->iobase + PO_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;
+ printk("stop_spdifout is called \n");
+ 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;
+ printk("__start_spdifout is called \n");
+ if (dmabuf->count > 0 && dmabuf->ready && !dmabuf->enable &&
+ (dmabuf->trigger & SPDIF_ENABLE_OUTPUT)) {
+ if(codec_independent_spdif_locked >0) {
+ printk("I enter into if \n");
+
+ 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
+ //outl(0x80300003,state->card->iobase+ALI_SCR);
+ //outl(0x04280002,state->card->iobase+ALI_INTERFACECR); //enable codec indepen
+
+ } 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
+ }
+ }
+ }
+ printk("__start_spdifout is success\n");
+}
+
+static void start_spdifout(struct ali_state *state)
+{
+ struct ali_card *card = state->card;
+ unsigned long flags;
+ printk("start_spdifout is called \n");
+ 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 seperately */
+static int alloc_dmabuf(struct ali_state *state)
+{
+ struct dmabuf *dmabuf = &state->dmabuf;
+ void *rawbuf= NULL;
+ int order, size;
+ struct page *page, *pend;
+
+ printk("alloc_dmabuf is called \n");
+ /* 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;
+
+
+#ifdef DEBUG
+ printk("ali_audio: allocated %ld (order = %d) bytes at %p\n",
+ PAGE_SIZE << order, order, rawbuf);
+#endif
+
+ dmabuf->ready = dmabuf->mapped = 0;
+ dmabuf->rawbuf = rawbuf;
+ dmabuf->buforder = order;
+ printk(" printk allocate end \n");
+
+ /* now mark the pages as reserved; otherwise remap_page_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++)
+ mem_map_reserve(page);
+
printk("mem_map_reserve is ok \n");
+ return 0;
+}
+
+/* free DMA buffer */
+static void dealloc_dmabuf(struct ali_state *state)
+{
+ struct dmabuf *dmabuf = &state->dmabuf;
+ struct page *page, *pend;
+
+ printk("dealloc_dmabuf is called \n");
+ 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++)
+ mem_map_unreserve(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;
+ struct sg_item *sg;
+ unsigned long flags;
+ int ret;
+ unsigned fragint;
+ int i;
+
+ printk("prog_dmabuf is called \n");
+
+ 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
+ */
+ printk(" alloc_dmabuf is success\n");
+ 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(dmabuf->read_channel)
+
+ c = dmabuf->read_channel;
+ else {
+ if(dmabuf->write_channel){
+ printk("c = dmabuf->write_channe \n");
+
+ c = dmabuf->write_channel;
+ } else {
+ if(codec_independent_spdif_locked >0){
+ if(dmabuf->codec_spdifout_channel){
+ printk("c= dmabuf->codec_spdifout_channel\n");
+ c = dmabuf->codec_spdifout_channel;
+ }
+ }else {
+ if(controller_independent_spdif_locked >0){
+ if(dmabuf->controller_spdifout_channel)
+ c = dmabuf->controller_spdifout_channel;
+ }
+ }
+ }
+ } */
+
+
+ /* if(dmabuf->read_channel)
+
+ c = dmabuf->read_channel;
+ else {
+ if(codec_independent_spdif_locked >0){
+ if(dmabuf->codec_spdifout_channel){
+ printk("c= dmabuf->codec_spdifout_channel\n");
+ c = dmabuf->codec_spdifout_channel;
+ }
+ }else {
+ if(controller_independent_spdif_locked >0){
+ if(dmabuf->controller_spdifout_channel)
+ c = dmabuf->controller_spdifout_channel;
+ }else {
+ if(dmabuf->write_channel){
+ printk("c = dmabuf->write_channe \n");
+ c = dmabuf->write_channel;
+ }
+ }
+ }
+ } */
+ printk( "rec =%d \n",rec);
+ if(rec >0){
+ if(rec==1){
+ printk("c=dmabuf->read_channel \n");
+ c = dmabuf->read_channel;
+ } else {
+ if(rec==2) {
+ printk("c=dmabuf->codec_spdifout_channel \n");
+ c = dmabuf->codec_spdifout_channel;
+ }else {
+ if(rec==3){
+ printk("c=dmabuf->controller_spdifout_channel\n");
+ c = dmabuf->controller_spdifout_channel;
+ }
+ }
+ }
+ } else {
+ if(rec==0){
+ printk("c=dmabuf->write_channel \n");
+ c = dmabuf->write_channel;
+ }
+ }
+
+
+
+
+
+
+ printk(" while before\n");
+
+ while(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;
+ if(state->card->pci_id == PCI_DEVICE_ID_SI_7012)
+ sg->control <<= 1;
+ 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);
+
+
printk("dmabuf->codec_spdifout_channel before\n");
+
+
+ /* if(c != dmabuf->write_channel)
+ c = dmabuf->write_channel;
+ else */
+ c = NULL;
+
+ printk("alloc dmabuf is success\n");
+ }
+
+ /* set the ready flag for the dma buffer */
+ dmabuf->ready = 1;
+
+#ifdef DEBUG
+ printk("ali_audio: prog_dmabuf, sample rate = %d, format = %d,\n\tnumfrag = %d, "
+ "fragsize = %d dmasize = %d\n",
+ dmabuf->rate, dmabuf->fmt, dmabuf->numfrag,
+ dmabuf->fragsize, dmabuf->dmasize);
+#endif
+
+ return 0;
+}
+
+static void __ali_update_lvi(struct ali_state *state, int rec)
+{
+ struct dmabuf *dmabuf = &state->dmabuf;
+ int x, port;
+
+ printk("__ali_update_lvi is called \n");
+ port = state->card->iobase;
+ if(rec){
+
+ 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
+ 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
+ */
+ //I think some problems
+ 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))) ) ;
+ } 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))) ) ;
+ } else if ( rec && dmabuf->count &&
+ (dmabuf->trigger & SPDIF_ENABLE_OUTPUT))
+ {
+ if(codec_independent_spdif_locked >0){
+ printk(" __ali_update_lvi now exec codec_independent_spdifout\n");
+ // 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))) ) ; //I think some problem
+ } 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))) ) ; //I think some problem
+
+ }
+
+
+ }
+ }
+
+
+ }
+
+ /* 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;
+
+ printk("ali_update_lvi is called \n");
+ 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;
+
+ printk("ali_update_ptr is called \n");
+
+ /* 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;
+#if defined(DEBUG_INTERRUPTS) || defined(DEBUG_MMAP)
+ printk("ADC HWP %d,%d,%d\n", hwptr, dmabuf->hwptr, diff);
+#endif
+ 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("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;
+#if defined(DEBUG_INTERRUPTS) || defined(DEBUG_MMAP)
+ printk("CODEC SPDIFOUT 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 + CODECSPDIFOUT_CIV) & 31) !=
+ (inb(state->card->iobase + CODECSPDIFOUT_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 + 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;
+#if defined(DEBUG_INTERRUPTS) || defined(DEBUG_MMAP)
+ printk("CONTROLLER SPDIFOUT 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 + 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;
+
+ printk("ali_get_free_write_space is called \n");
+ ali_update_ptr(state);
+ // catch underruns during playback
+ if (dmabuf->count < 0) {
+ dmabuf->count = 0;
+ dmabuf->swptr = dmabuf->hwptr;
+ }
+ free = dmabuf->dmasize - dmabuf->count;
+ free -= (dmabuf->hwptr % dmabuf->fragsize);
+ if(free < 0)
+ return(0);
+ return(free);
+}
+
+static inline int ali_get_available_read_data(struct ali_state *state)
+{
+ struct dmabuf *dmabuf = &state->dmabuf;
+ int avail;
+
+ printk("ali_get_available_read_data is called \n");
+ 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;
+
+ printk("drain_dac is called \n");
+
+ 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;
+
+ printk("drain_spdifout is called \n");
+
+ 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;
+
+ printk("ali_channel_interrupt is called \n");
+#ifdef DEBUG_INTERRUPTS
+ printk("CHANNEL ");
+#endif
+ for(i=0;i<NR_HW_CH;i++)
+ {
+ struct ali_state *state = card->states[i];
+ struct ali_channel *c;
+ struct dmabuf *dmabuf;
+ unsigned long port = card->iobase;
+ u16 status;
+
+ if(!state)
+ continue;
+ if(!state->dmabuf.ready)
+ continue;
+ dmabuf = &state->dmabuf;
+ printk("ali_channel_interrupt do if before \n");
+
+ if( codec_independent_spdif_locked >0)
+ {
+ if( dmabuf->enable & CODEC_SPDIFOUT_RUNNING ){
+ printk("codec_spdifout_channel \n");
+ 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;
+
+ if(card->pci_id == PCI_DEVICE_ID_SI_7012)
+ status = inw(port + OFF_PICB);
+ else
+ status = inw(port + OFF_SR);
+
+#ifdef DEBUG_INTERRUPTS
+ printk("NUM %d PORT %X IRQ ( ST%d ", c->num, c->port, status);
+#endif
+ printk("codec independent spdif out 70h-7bh \n");
+ printk("codec 70h=%x\n",inl(port+OFF_BDBAR));
+ printk("codec 74h=%x\n",inb(port+OFF_CIV));
+ printk("codec 75h=%x\n",inb(port+OFF_LVI));
+ printk("codec 76h=%x\n",inl(port+OFF_SR));
+ printk("codec 78h=%x\n",inl(port+OFF_PICB));
+ printk("codec 7bh=%x\n",inw(port+OFF_CR));
+
+ 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);
+#ifdef DEBUG_INTERRUPTS
+ printk("COMP %d ", dmabuf->hwptr /
+ dmabuf->fragsize);
+#endif
+ }
+ /* I update very large by clone ali5455(2.4.7) */
+ if(status & DMA_INT_LVI)
+ {
+ printk("ali_channel_interrupt exec status & DMA_INT_LVI \n");
+ ali_update_ptr(state);
+ wake_up(&dmabuf->wait);
+#ifdef DEBUG_INTERRUPTS
+ printk("LVI ");
+#endif
+
+
+ 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;
+ }
+
+ }
+ }
+ printk("current count=%d\n",count);
+ 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);
+
+ }
+
+
+ }
+
+
+#ifdef DEBUG_INTERRUPTS
+ printk(" CONTINUE ");
+#endif
+ } 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);
+#ifdef DEBUG_INTERRUPTS
+ printk("LVI - STOP ");
+#endif
+ }
+
+ }
+ if(!(status & DMA_INT_DCH))
+ {
+ printk("ali_channel_interrupt exec status & DMA_INT_DCH \n");
+ ali_update_ptr(state);
+ wake_up(&dmabuf->wait);
+
+
+#ifdef DEBUG_INTERRUPTS
+ printk("DCH - ");
+#endif
+
+
+
+ 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;
+ }
+ }
+
+ }
+ printk("DCH count =%d \n",count);
+ 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);
+
+ }
+
+
+ }
+
+#ifdef DEBUG_INTERRUPTS
+ printk(" CONTINUE ");
+#endif
+
+ } 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);
+#ifdef DEBUG_INTERRUPTS
+ printk("DCH - STOP ");
+#endif
+ }
+ }
+
+
+
+
+
+
+
+ if(card->pci_id == PCI_DEVICE_ID_SI_7012)
+ outw(status & DMA_INT_MASK, port + OFF_PICB);
+ else
+ outw(status & DMA_INT_MASK, port + OFF_SR);
+ }
+#ifdef DEBUG_INTERRUPTS
+ printk(")\n");
+#endif
+}
+
+static void ali_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+ struct ali_card *card = (struct ali_card *)dev_id;
+ u32 status;
+ u16 status2;
+ u32 event;
+
+ printk("ali_interrupt is called \n");
+
+ spin_lock(&card->lock);
+
+
+ status = inl(card->iobase + ALI_INTERRUPTSR);
+
+ printk("now interrupt status register =%x \n",status);
+
+ if(!(status & INT_MASK))
+ {
+ spin_unlock(&card->lock);
+ return; /* 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);
+}
+
+/* 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 *buffer, size_t count, loff_t *ppos)
+{
+ struct ali_state *state = (struct ali_state *)file->private_data;
+ struct ali_card *card=state ? state->card : 0;
+ struct dmabuf *dmabuf = &state->dmabuf;
+ ssize_t ret;
+ unsigned long flags;
+ unsigned int swptr;
+ int cnt;
+ DECLARE_WAITQUEUE(waita, current);
+ printk("ali_read is called \n");
+#ifdef DEBUG2
+ printk("ali_audio: ali_read called, count = %d\n", count);
+#endif
+
+ if (ppos != &file->f_pos)
+ return -ESPIPE;
+ 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)) {
+#ifdef DEBUG
+ 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);
+#endif
+ /* 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 *buffer, size_t count, loff_t *ppos)
+{
+ struct ali_state *state = (struct ali_state *)file->private_data;
+ struct ali_card *card=state ? state->card : 0;
+ struct dmabuf *dmabuf = &state->dmabuf;
+ ssize_t ret;
+ unsigned long flags;
+ unsigned int swptr = 0;
+ int cnt, x;
+ DECLARE_WAITQUEUE(waita, current);
+
printk("ali_write is called \n");
+#ifdef DEBUG2
+ printk("ali_audio: ali_write called, count = %d\n", count);
+#endif
+
+ if (ppos != &file->f_pos)
+ return -ESPIPE;
+ 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. */
+
+ if (!schedule_timeout(tmo >= 2 ? tmo : 2)) {
+#ifdef DEBUG
+ printk(KERN_ERR "ali_audio: playback schedule timeout, "
+ "dmasz %u fragsz %u count %i hwptr %u swptr %u\n",
+ dmabuf->dmasize, dmabuf->fragsize, dmabuf->count,
+ dmabuf->hwptr, dmabuf->swptr);
+#endif
+ /* a buffer underrun, we delay the recovery until next time the
+ while loop begin and we REALLY have data to play */
+ //return ret;
+ }
+ 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;
+
+ printk("ali_poll is called \n");
+ 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|dmabuf->enable & CODEC_SPDIFOUT_RUNNING|dmabuf->enab+
le & CONTROLLER_SPDIFOUT_RUNNING)) {
+ if ((signed)dmabuf->dmasize >= dmabuf->count + (signed)dmabuf->fragsize)
+ mask |= POLLOUT | POLLWRNORM;
+ }
+ /* if (dmabuf->enable & ADC_RUNNING ||
+ dmabuf->trigger & PCM_ENABLE_INPUT) {
+ if (ali_get_available_read_data(state) >=
+ (signed)dmabuf->userfragsize)
+ mask |= POLLIN | POLLRDNORM;
+ }
+ if (dmabuf->enable & DAC_RUNNING ||
+ dmabuf->trigger & PCM_ENABLE_OUTPUT) {
+ if (ali_get_free_write_space(state) >=
+ (signed)dmabuf->userfragsize)
+ 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;
+
printk("ali_mmap is called \n");
+ 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_page_range(vma->vm_start, virt_to_phys(dmabuf->rawbuf),
+ size, vma->vm_page_prot))
+ goto out;
+ dmabuf->mapped = 1;
+ dmabuf->trigger = 0;
+ ret = 0;
+#ifdef DEBUG_MMAP
+ printk("ali_audio: mmap'ed %ld bytes of data space\n", size);
+#endif
+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];
+
printk("ali_ioctl is called \n");
+#ifdef DEBUG
+ printk("ali_audio: ali_ioctl, arg=0x%x, cmd=", arg ? *(int *)arg : 0);
+#endif
+
+ switch (cmd)
+ {
+ case OSS_GETVERSION:
+#ifdef DEBUG
+ printk("OSS_GETVERSION\n");
+#endif
+ return put_user(SOUND_VERSION, (int *)arg);
+
+ 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();
+ 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, (int *)arg))
+ return -EFAULT;
+ if (val >= 0) {
+ if (file->f_mode & FMODE_WRITE) {
+ printk("SNDCTL_DSP_SPEED then select spdif_on befoer\n");
+ if ( (state->card->ac97_status & SPDIF_ON) ) { /* S/PDIF Enabled */
+ /* RELTEK ALC650 only support 48000, need to check that */
+ printk("state->card->ac97_status & SPDIF_ON is called \n");
+ 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);
+ printk(" now ALI_SCR value = %x \n",i_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);
+ // printk(" codec independent spdifout do not send at slot 3&4\n");
+
+ }
+ }
+ }
+
+
+
+
+ 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 {
+
+
printk("now do not spdif out \n");
+
+ 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, (int *)arg);
+
+ 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, (int *)arg);
+
+ 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, (int *)arg);
+
+ 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, (int *)arg);
+
+ case SNDCTL_DSP_SETFMT: /* Select sample format */
+#ifdef DEBUG
+ printk("SNDCTL_DSP_SETFMT\n");
+#endif
+ return put_user(AFMT_S16_LE, (int *)arg);
+
+ case SNDCTL_DSP_CHANNELS:
// add support 4,6 channel
+#ifdef DEBUG
+ printk("SNDCTL_DSP_CHANNELS\n");
+#endif
+ if (get_user(val, (int *)arg))
+ return -EFAULT;
+
+ printk("get_user now val =%d \n",val);
+ 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, (int *)arg);
+ }
+
+ i_scr = inl(state->card->iobase + ALI_SCR);
+ printk(" now i_scr =%d \n",i_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;
+ }
+ printk("write into scr now\n");
+
+ return put_user(val, (int *)arg);
+
+
+
+
+
+
+
+
+
+ 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, (int *)arg))
+ 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, (int *)arg))
+ 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((void *)arg, &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((void *)arg, &cinfo, sizeof(cinfo));
+
+ 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((void *)arg, &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((void *)arg, &cinfo, sizeof(cinfo));
+
+ 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,
+ (int *)arg);
+
+ case SNDCTL_DSP_GETTRIGGER:
+ val = 0;
+#ifdef DEBUG
+ printk("SNDCTL_DSP_GETTRIGGER 0x%x\n", dmabuf->trigger);
+#endif
+ return put_user(dmabuf->trigger, (int *)arg);
+
+ case SNDCTL_DSP_SETTRIGGER:
+ if (get_user(val, (int *)arg))
+ 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, (int *)arg);
+
+ case SOUND_PCM_READ_RATE:
+#ifdef DEBUG
+ printk("SOUND_PCM_READ_RATE %d\n", dmabuf->rate);
+#endif
+ return put_user(dmabuf->rate, (int *)arg);
+
+ case SOUND_PCM_READ_CHANNELS:
+#ifdef DEBUG
+ printk("SOUND_PCM_READ_CHANNELS\n");
+#endif
+ return put_user(2, (int *)arg);
+
+ case SOUND_PCM_READ_BITS:
+#ifdef DEBUG
+ printk("SOUND_PCM_READ_BITS\n");
+#endif
+ return put_user(AFMT_S16_LE, (int *)arg);
+
+//add support codec spdif out
+ case SNDCTL_DSP_SETSPDIF: /* Set S/PDIF Control register */
+#ifdef DEBUG
+ printk("SNDCTL_DSP_SETSPDIF\n");
+#endif
+ if (get_user(val, (int *)arg))
+ 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);
+ printk(" ----\n");
+ printk( " SNDCTL_DSP_SETSPDIF set ac97_spdif_control val=%d \n",val);
+
+ 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, (int *)arg);
+
+ case SNDCTL_DSP_GETSPDIF: /* Get S/PDIF Control register */
+#ifdef DEBUG
+ printk("SNDCTL_DSP_GETSPDIF\n");
+#endif
+ if (get_user(val, (int *)arg))
+ 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, (int *)arg);
+//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, (int *)arg))
+ 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, (int *)arg);
+
+ case SNDCTL_DSP_BIND_CHANNEL:
+#ifdef DEBUG
+ printk("SNDCTL_DSP_BIND_CHANNEL\n");
+#endif
+ if (get_user(val, (int *)arg))
+ return -EFAULT;
+ if ( val |
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