Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/sound/pci/ali5451/ali5451.c b/sound/pci/ali5451/ali5451.c
new file mode 100644
index 0000000..984d5d4
--- /dev/null
+++ b/sound/pci/ali5451/ali5451.c
@@ -0,0 +1,2282 @@
+/*
+ * Matt Wu <Matt_Wu@acersoftech.com.cn>
+ * Apr 26, 2001
+ * Routines for control of ALi pci audio M5451
+ *
+ * BUGS:
+ * --
+ *
+ * TODO:
+ * --
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public Lcodecnse as published by
+ * the Free Software Foundation; either version 2 of the Lcodecnse, 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 Lcodecnse for more details.
+ *
+ * You should have received a copy of the GNU General Public Lcodecnse
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <sound/driver.h>
+#include <asm/io.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/moduleparam.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/info.h>
+#include <sound/ac97_codec.h>
+#include <sound/mpu401.h>
+#include <sound/initval.h>
+
+MODULE_AUTHOR("Matt Wu <Matt_Wu@acersoftech.com.cn>");
+MODULE_DESCRIPTION("ALI M5451");
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{ALI,M5451,pci},{ALI,M5451}}");
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
+static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
+static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 32};
+static int spdif[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 0};
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for ALI M5451 PCI Audio.");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for ALI M5451 PCI Audio.");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable ALI 5451 PCI Audio.");
+module_param_array(pcm_channels, int, NULL, 0444);
+MODULE_PARM_DESC(pcm_channels, "PCM Channels");
+module_param_array(spdif, bool, NULL, 0444);
+MODULE_PARM_DESC(spdif, "Support SPDIF I/O");
+
+/*
+ * Debug part definitions
+ */
+
+//#define ALI_DEBUG
+
+#ifdef ALI_DEBUG
+#define snd_ali_printk(format, args...) printk(format, ##args);
+#else
+#define snd_ali_printk(format, args...)
+#endif
+
+/*
+ * Constants definition
+ */
+
+#ifndef PCI_VENDOR_ID_ALI
+#define PCI_VENDOR_ID_ALI 0x10b9
+#endif
+
+#ifndef PCI_DEVICE_ID_ALI_5451
+#define PCI_DEVICE_ID_ALI_5451 0x5451
+#endif
+
+#define DEVICE_ID_ALI5451 ((PCI_VENDOR_ID_ALI<<16)|PCI_DEVICE_ID_ALI_5451)
+
+
+#define ALI_CHANNELS 32
+
+#define ALI_PCM_IN_CHANNEL 31
+#define ALI_SPDIF_IN_CHANNEL 19
+#define ALI_SPDIF_OUT_CHANNEL 15
+#define ALI_CENTER_CHANNEL 24
+#define ALI_LEF_CHANNEL 23
+#define ALI_SURR_LEFT_CHANNEL 26
+#define ALI_SURR_RIGHT_CHANNEL 25
+
+#define SNDRV_ALI_VOICE_TYPE_PCM 01
+#define SNDRV_ALI_VOICE_TYPE_OTH 02
+
+#define ALI_5451_V02 0x02
+
+/*
+ * Direct Registers
+ */
+
+#define ALI_LEGACY_DMAR0 0x00 // ADR0
+#define ALI_LEGACY_DMAR4 0x04 // CNT0
+#define ALI_LEGACY_DMAR11 0x0b // MOD
+#define ALI_LEGACY_DMAR15 0x0f // MMR
+#define ALI_MPUR0 0x20
+#define ALI_MPUR1 0x21
+#define ALI_MPUR2 0x22
+#define ALI_MPUR3 0x23
+
+#define ALI_AC97_WRITE 0x40
+#define ALI_AC97_READ 0x44
+
+#define ALI_SCTRL 0x48
+#define ALI_SPDIF_OUT_ENABLE 0x20
+#define ALI_AC97_GPIO 0x4c
+#define ALI_SPDIF_CS 0x70
+#define ALI_SPDIF_CTRL 0x74
+#define ALI_SPDIF_IN_FUNC_ENABLE 0x02
+#define ALI_SPDIF_IN_CH_STATUS 0x40
+#define ALI_SPDIF_OUT_CH_STATUS 0xbf
+#define ALI_START 0x80
+#define ALI_STOP 0x84
+#define ALI_CSPF 0x90
+#define ALI_AINT 0x98
+#define ALI_GC_CIR 0xa0
+ #define ENDLP_IE 0x00001000
+ #define MIDLP_IE 0x00002000
+#define ALI_AINTEN 0xa4
+#define ALI_VOLUME 0xa8
+#define ALI_SBDELTA_DELTA_R 0xac
+#define ALI_MISCINT 0xb0
+ #define ADDRESS_IRQ 0x00000020
+ #define TARGET_REACHED 0x00008000
+ #define MIXER_OVERFLOW 0x00000800
+ #define MIXER_UNDERFLOW 0x00000400
+#define ALI_SBBL_SBCL 0xc0
+#define ALI_SBCTRL_SBE2R_SBDD 0xc4
+#define ALI_STIMER 0xc8
+#define ALI_GLOBAL_CONTROL 0xd4
+#define ALI_SPDIF_OUT_SEL_PCM 0x00000400 /* bit 10 */
+#define ALI_SPDIF_IN_SUPPORT 0x00000800 /* bit 11 */
+#define ALI_SPDIF_OUT_CH_ENABLE 0x00008000 /* bit 15 */
+#define ALI_SPDIF_IN_CH_ENABLE 0x00080000 /* bit 19 */
+#define ALI_PCM_IN_ENABLE 0x80000000 /* bit 31 */
+
+#define ALI_CSO_ALPHA_FMS 0xe0
+#define ALI_LBA 0xe4
+#define ALI_ESO_DELTA 0xe8
+#define ALI_GVSEL_PAN_VOC_CTRL_EC 0xf0
+#define ALI_EBUF1 0xf4
+#define ALI_EBUF2 0xf8
+
+#define ALI_REG(codec, x) ((codec)->port + x)
+
+typedef struct snd_stru_ali ali_t;
+typedef struct snd_ali_stru_voice snd_ali_voice_t;
+
+typedef struct snd_ali_channel_control {
+ // register data
+ struct REGDATA {
+ unsigned int start;
+ unsigned int stop;
+ unsigned int aint;
+ unsigned int ainten;
+ } data;
+
+ // register addresses
+ struct REGS {
+ unsigned int start;
+ unsigned int stop;
+ unsigned int aint;
+ unsigned int ainten;
+ unsigned int ac97read;
+ unsigned int ac97write;
+ } regs;
+
+} snd_ali_channel_control_t;
+
+struct snd_ali_stru_voice {
+ unsigned int number;
+ unsigned int use: 1,
+ pcm: 1,
+ midi: 1,
+ mode: 1,
+ synth: 1;
+
+ /* PCM data */
+ ali_t *codec;
+ snd_pcm_substream_t *substream;
+ snd_ali_voice_t *extra;
+
+ unsigned int running: 1;
+
+ int eso; /* final ESO value for channel */
+ int count; /* runtime->period_size */
+
+ /* --- */
+
+ void *private_data;
+ void (*private_free)(void *private_data);
+};
+
+
+typedef struct snd_stru_alidev {
+
+ snd_ali_voice_t voices[ALI_CHANNELS];
+
+ unsigned int chcnt; /* num of opened channels */
+ unsigned int chmap; /* bitmap for opened channels */
+ unsigned int synthcount;
+
+} alidev_t;
+
+
+#ifdef CONFIG_PM
+#define ALI_GLOBAL_REGS 56
+#define ALI_CHANNEL_REGS 8
+typedef struct snd_ali_image {
+ unsigned long regs[ALI_GLOBAL_REGS];
+ unsigned long channel_regs[ALI_CHANNELS][ALI_CHANNEL_REGS];
+} ali_image_t;
+#endif
+
+
+struct snd_stru_ali {
+ unsigned long irq;
+ unsigned long port;
+ unsigned char revision;
+
+ unsigned int hw_initialized: 1;
+ unsigned int spdif_support: 1;
+
+ struct pci_dev *pci;
+ struct pci_dev *pci_m1533;
+ struct pci_dev *pci_m7101;
+
+ snd_card_t *card;
+ snd_pcm_t *pcm;
+ alidev_t synth;
+ snd_ali_channel_control_t chregs;
+
+ /* S/PDIF Mask */
+ unsigned int spdif_mask;
+
+ unsigned int spurious_irq_count;
+ unsigned int spurious_irq_max_delta;
+
+ ac97_bus_t *ac97_bus;
+ ac97_t *ac97;
+ unsigned short ac97_ext_id;
+ unsigned short ac97_ext_status;
+
+ spinlock_t reg_lock;
+ spinlock_t voice_alloc;
+
+#ifdef CONFIG_PM
+ ali_image_t *image;
+#endif
+};
+
+static struct pci_device_id snd_ali_ids[] = {
+ {0x10b9, 0x5451, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
+ {0, }
+};
+MODULE_DEVICE_TABLE(pci, snd_ali_ids);
+
+static void snd_ali_clear_voices(ali_t *, unsigned int, unsigned int);
+static unsigned short snd_ali_codec_peek(ali_t *, int, unsigned short);
+static void snd_ali_codec_poke(ali_t *, int, unsigned short, unsigned short);
+
+/*
+ * Debug Part
+ */
+
+#ifdef ALI_DEBUG
+
+static void ali_read_regs(ali_t *codec, int channel)
+{
+ int i,j;
+ unsigned int dwVal;
+
+ printk("channel %d registers map:\n", channel);
+ outb((unsigned char)(channel & 0x001f), ALI_REG(codec,ALI_GC_CIR));
+
+ printk(" ");
+ for(j=0;j<8;j++)
+ printk("%2.2x ", j*4);
+ printk("\n");
+
+ for (i=0; i<=0xf8/4;i++) {
+ if(i%8 == 0)
+ printk("%2.2x ", (i*4/0x10)*0x10);
+ dwVal = inl(ALI_REG(codec,i*4));
+ printk("%8.8x ", dwVal);
+ if ((i+1)%8 == 0)
+ printk("\n");
+ }
+ printk("\n");
+}
+static void ali_read_cfg(unsigned int vendor, unsigned deviceid)
+{
+ unsigned int dwVal;
+ struct pci_dev *pci_dev = NULL;
+ int i,j;
+
+
+ pci_dev = pci_find_device(vendor, deviceid, pci_dev);
+ if (pci_dev == NULL)
+ return ;
+
+ printk("\nM%x PCI CFG\n", deviceid);
+ printk(" ");
+ for(j=0;j<8;j++)
+ printk("%d ",j);
+ printk("\n");
+
+ for(i=0;i<8;i++) {
+ printk("%d ",i);
+ for(j=0;j<8;j++)
+ {
+ pci_read_config_dword(pci_dev, i*0x20+j*4, &dwVal);
+ printk("%8.8x ", dwVal);
+ }
+ printk("\n");
+ }
+ }
+static void ali_read_ac97regs(ali_t *codec, int secondary)
+{
+ unsigned short i,j;
+ unsigned short wVal;
+
+ printk("\ncodec %d registers map:\n", secondary);
+
+ printk(" ");
+ for(j=0;j<8;j++)
+ printk("%2.2x ",j*2);
+ printk("\n");
+
+ for (i=0; i<64;i++) {
+ if(i%8 == 0)
+ printk("%2.2x ", (i/8)*0x10);
+ wVal = snd_ali_codec_peek(codec, secondary, i*2);
+ printk("%4.4x ", wVal);
+ if ((i+1)%8 == 0)
+ printk("\n");
+ }
+ printk("\n");
+}
+
+#endif
+
+/*
+ * AC97 ACCESS
+ */
+
+static inline unsigned int snd_ali_5451_peek(ali_t *codec,
+ unsigned int port )
+{
+ return (unsigned int)inl(ALI_REG(codec, port));
+}
+
+static inline void snd_ali_5451_poke( ali_t *codec,
+ unsigned int port,
+ unsigned int val )
+{
+ outl((unsigned int)val, ALI_REG(codec, port));
+}
+
+static int snd_ali_codec_ready( ali_t *codec,
+ unsigned int port,
+ int sched )
+{
+ unsigned long end_time;
+ unsigned int res;
+
+ end_time = jiffies + 10 * (HZ >> 2);
+ do {
+ res = snd_ali_5451_peek(codec,port);
+ if (! (res & 0x8000))
+ return 0;
+ if (sched) {
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(1);
+ }
+ } while (time_after_eq(end_time, jiffies));
+ snd_ali_5451_poke(codec, port, res & ~0x8000);
+ snd_printdd("ali_codec_ready: codec is not ready.\n ");
+ return -EIO;
+}
+
+static int snd_ali_stimer_ready(ali_t *codec, int sched)
+{
+ unsigned long end_time;
+ unsigned long dwChk1,dwChk2;
+
+ dwChk1 = snd_ali_5451_peek(codec, ALI_STIMER);
+ dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
+
+ end_time = jiffies + 10 * (HZ >> 2);
+ do {
+ dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
+ if (dwChk2 != dwChk1)
+ return 0;
+ if (sched) {
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(1);
+ }
+ } while (time_after_eq(end_time, jiffies));
+ snd_printk("ali_stimer_read: stimer is not ready.\n");
+ return -EIO;
+}
+
+static void snd_ali_codec_poke(ali_t *codec,int secondary,
+ unsigned short reg,
+ unsigned short val)
+{
+ unsigned int dwVal = 0;
+ unsigned int port = 0;
+
+ if (reg >= 0x80) {
+ snd_printk("ali_codec_poke: reg(%xh) invalid.\n", reg);
+ return;
+ }
+
+ port = codec->chregs.regs.ac97write;
+
+ if (snd_ali_codec_ready(codec, port, 0) < 0)
+ return;
+ if (snd_ali_stimer_ready(codec, 0) < 0)
+ return;
+
+ dwVal = (unsigned int) (reg & 0xff);
+ dwVal |= 0x8000 | (val << 16);
+ if (secondary) dwVal |= 0x0080;
+ if (codec->revision == ALI_5451_V02) dwVal |= 0x0100;
+
+ snd_ali_5451_poke(codec,port,dwVal);
+
+ return ;
+}
+
+static unsigned short snd_ali_codec_peek( ali_t *codec,
+ int secondary,
+ unsigned short reg)
+{
+ unsigned int dwVal = 0;
+ unsigned int port = 0;
+
+ if (reg >= 0x80) {
+ snd_printk("ali_codec_peek: reg(%xh) invalid.\n", reg);
+ return ~0;
+ }
+
+ port = codec->chregs.regs.ac97read;
+
+ if (snd_ali_codec_ready(codec, port, 0) < 0)
+ return ~0;
+ if (snd_ali_stimer_ready(codec, 0) < 0)
+ return ~0;
+
+ dwVal = (unsigned int) (reg & 0xff);
+ dwVal |= 0x8000; /* bit 15*/
+ if (secondary) dwVal |= 0x0080;
+
+ snd_ali_5451_poke(codec, port, dwVal);
+
+ if (snd_ali_stimer_ready(codec, 0) < 0)
+ return ~0;
+ if (snd_ali_codec_ready(codec, port, 0) < 0)
+ return ~0;
+
+ return (snd_ali_5451_peek(codec, port) & 0xffff0000)>>16;
+}
+
+static void snd_ali_codec_write(ac97_t *ac97,
+ unsigned short reg,
+ unsigned short val )
+{
+ ali_t *codec = ac97->private_data;
+
+ snd_ali_printk("codec_write: reg=%xh data=%xh.\n", reg, val);
+ snd_ali_codec_poke(codec, 0, reg, val);
+ return ;
+}
+
+
+static unsigned short snd_ali_codec_read(ac97_t *ac97, unsigned short reg)
+{
+ ali_t *codec = ac97->private_data;
+
+ snd_ali_printk("codec_read reg=%xh.\n", reg);
+ return (snd_ali_codec_peek(codec, 0, reg));
+}
+
+/*
+ * AC97 Reset
+ */
+
+static int snd_ali_reset_5451(ali_t *codec)
+{
+ struct pci_dev *pci_dev = NULL;
+ unsigned short wCount, wReg;
+ unsigned int dwVal;
+
+ if ((pci_dev = codec->pci_m1533) != NULL) {
+ pci_read_config_dword(pci_dev, 0x7c, &dwVal);
+ pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
+ udelay(5000);
+ pci_read_config_dword(pci_dev, 0x7c, &dwVal);
+ pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
+ udelay(5000);
+ }
+
+ pci_dev = codec->pci;
+ pci_read_config_dword(pci_dev, 0x44, &dwVal);
+ pci_write_config_dword(pci_dev, 0x44, dwVal | 0x000c0000);
+ udelay(500);
+ pci_read_config_dword(pci_dev, 0x44, &dwVal);
+ pci_write_config_dword(pci_dev, 0x44, dwVal & 0xfffbffff);
+ udelay(5000);
+
+ wCount = 200;
+ while(wCount--) {
+ wReg = snd_ali_codec_peek(codec, 0, AC97_POWERDOWN);
+ if((wReg & 0x000f) == 0x000f)
+ return 0;
+ udelay(5000);
+ }
+
+ /* non-fatal if you have a non PM capable codec */
+ /* snd_printk(KERN_WARNING "ali5451: reset time out\n"); */
+ return 0;
+}
+
+#ifdef CODEC_RESET
+
+static int snd_ali_reset_codec(ali_t *codec)
+{
+ struct pci_dev *pci_dev = NULL;
+ unsigned char bVal = 0;
+ unsigned int dwVal;
+ unsigned short wCount, wReg;
+
+ pci_dev = codec->pci_m1533;
+
+ pci_read_config_dword(pci_dev, 0x7c, &dwVal);
+ pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
+ udelay(5000);
+ pci_read_config_dword(pci_dev, 0x7c, &dwVal);
+ pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
+ udelay(5000);
+
+ bVal = inb(ALI_REG(codec,ALI_SCTRL));
+ bVal |= 0x02;
+ outb(ALI_REG(codec,ALI_SCTRL),bVal);
+ udelay(5000);
+ bVal = inb(ALI_REG(codec,ALI_SCTRL));
+ bVal &= 0xfd;
+ outb(ALI_REG(codec,ALI_SCTRL),bVal);
+ udelay(15000);
+
+ wCount = 200;
+ while(wCount--) {
+ wReg = snd_ali_codec_read(codec->ac97, AC97_POWERDOWN);
+ if((wReg & 0x000f) == 0x000f)
+ return 0;
+ udelay(5000);
+ }
+ return -1;
+}
+
+#endif
+
+/*
+ * ALI 5451 Controller
+ */
+
+static void snd_ali_enable_special_channel(ali_t *codec, unsigned int channel)
+{
+ unsigned long dwVal = 0;
+
+ dwVal = inl(ALI_REG(codec,ALI_GLOBAL_CONTROL));
+ dwVal |= 1 << (channel & 0x0000001f);
+ outl(dwVal, ALI_REG(codec,ALI_GLOBAL_CONTROL));
+}
+
+static void snd_ali_disable_special_channel(ali_t *codec, unsigned int channel)
+{
+ unsigned long dwVal = 0;
+
+ dwVal = inl(ALI_REG(codec,ALI_GLOBAL_CONTROL));
+ dwVal &= ~(1 << (channel & 0x0000001f));
+ outl(dwVal, ALI_REG(codec,ALI_GLOBAL_CONTROL));
+}
+
+static void snd_ali_enable_address_interrupt(ali_t * codec)
+{
+ unsigned int gc;
+
+ gc = inl(ALI_REG(codec, ALI_GC_CIR));
+ gc |= ENDLP_IE;
+ gc |= MIDLP_IE;
+ outl( gc, ALI_REG(codec, ALI_GC_CIR));
+}
+
+static void snd_ali_disable_address_interrupt(ali_t * codec)
+{
+ unsigned int gc;
+
+ gc = inl(ALI_REG(codec, ALI_GC_CIR));
+ gc &= ~ENDLP_IE;
+ gc &= ~MIDLP_IE;
+ outl(gc, ALI_REG(codec, ALI_GC_CIR));
+}
+
+#if 0 // not used
+static void snd_ali_enable_voice_irq(ali_t *codec, unsigned int channel)
+{
+ unsigned int mask;
+ snd_ali_channel_control_t *pchregs = &(codec->chregs);
+
+ snd_ali_printk("enable_voice_irq channel=%d\n",channel);
+
+ mask = 1 << (channel & 0x1f);
+ pchregs->data.ainten = inl(ALI_REG(codec,pchregs->regs.ainten));
+ pchregs->data.ainten |= mask;
+ outl(pchregs->data.ainten,ALI_REG(codec,pchregs->regs.ainten));
+}
+#endif
+
+static void snd_ali_disable_voice_irq(ali_t *codec, unsigned int channel)
+{
+ unsigned int mask;
+ snd_ali_channel_control_t *pchregs = &(codec->chregs);
+
+ snd_ali_printk("disable_voice_irq channel=%d\n",channel);
+
+ mask = 1 << (channel & 0x1f);
+ pchregs->data.ainten = inl(ALI_REG(codec,pchregs->regs.ainten));
+ pchregs->data.ainten &= ~mask;
+ outl(pchregs->data.ainten,ALI_REG(codec,pchregs->regs.ainten));
+}
+
+static int snd_ali_alloc_pcm_channel(ali_t *codec, int channel)
+{
+ unsigned int idx = channel & 0x1f;
+
+ if (codec->synth.chcnt >= ALI_CHANNELS){
+ snd_printk("ali_alloc_pcm_channel: no free channels.\n");
+ return -1;
+ }
+
+ if (!(codec->synth.chmap & (1 << idx))) {
+ codec->synth.chmap |= 1 << idx;
+ codec->synth.chcnt++;
+ snd_ali_printk("alloc_pcm_channel no. %d.\n",idx);
+ return idx;
+ }
+ return -1;
+}
+
+static int snd_ali_find_free_channel(ali_t * codec, int rec)
+{
+ int idx;
+ int result = -1;
+
+ snd_ali_printk("find_free_channel: for %s\n",rec ? "rec" : "pcm");
+
+ // recording
+ if (rec) {
+ if (codec->spdif_support &&
+ (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_IN_SUPPORT))
+ idx = ALI_SPDIF_IN_CHANNEL;
+ else
+ idx = ALI_PCM_IN_CHANNEL;
+
+ if ((result = snd_ali_alloc_pcm_channel(codec,idx)) >= 0) {
+ return result;
+ } else {
+ snd_printk("ali_find_free_channel: record channel is busy now.\n");
+ return -1;
+ }
+ }
+
+ //playback...
+ if (codec->spdif_support &&
+ (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_OUT_CH_ENABLE)) {
+ idx = ALI_SPDIF_OUT_CHANNEL;
+ if ((result = snd_ali_alloc_pcm_channel(codec,idx)) >= 0) {
+ return result;
+ } else {
+ snd_printk("ali_find_free_channel: S/PDIF out channel is in busy now.\n");
+ }
+ }
+
+ for (idx = 0; idx < ALI_CHANNELS; idx++) {
+ if ((result = snd_ali_alloc_pcm_channel(codec,idx)) >= 0)
+ return result;
+ }
+ snd_printk("ali_find_free_channel: no free channels.\n");
+ return -1;
+}
+
+static void snd_ali_free_channel_pcm(ali_t *codec, int channel)
+{
+ unsigned int idx = channel & 0x0000001f;
+
+ snd_ali_printk("free_channel_pcm channel=%d\n",channel);
+
+ if (channel < 0 || channel >= ALI_CHANNELS)
+ return;
+
+ if (!(codec->synth.chmap & (1 << idx))) {
+ snd_printk("ali_free_channel_pcm: channel %d is not in use.\n",channel);
+ return;
+ } else {
+ codec->synth.chmap &= ~(1 << idx);
+ codec->synth.chcnt--;
+ }
+}
+
+#if 0 // not used
+static void snd_ali_start_voice(ali_t * codec, unsigned int channel)
+{
+ unsigned int mask = 1 << (channel & 0x1f);
+
+ snd_ali_printk("start_voice: channel=%d\n",channel);
+ outl(mask, ALI_REG(codec,codec->chregs.regs.start));
+}
+#endif
+
+static void snd_ali_stop_voice(ali_t * codec, unsigned int channel)
+{
+ unsigned int mask = 1 << (channel & 0x1f);
+
+ snd_ali_printk("stop_voice: channel=%d\n",channel);
+ outl(mask, ALI_REG(codec, codec->chregs.regs.stop));
+}
+
+/*
+ * S/PDIF Part
+ */
+
+static void snd_ali_delay(ali_t *codec,int interval)
+{
+ unsigned long begintimer,currenttimer;
+
+ begintimer = inl(ALI_REG(codec, ALI_STIMER));
+ currenttimer = inl(ALI_REG(codec, ALI_STIMER));
+
+ while (currenttimer < begintimer + interval) {
+ if(snd_ali_stimer_ready(codec, 1) < 0)
+ break;
+ currenttimer = inl(ALI_REG(codec, ALI_STIMER));
+ }
+}
+
+static void snd_ali_detect_spdif_rate(ali_t *codec)
+{
+ u16 wval = 0;
+ u16 count = 0;
+ u8 bval = 0, R1 = 0, R2 = 0;
+
+ bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
+ bval |= 0x1F;
+ outb(bval,ALI_REG(codec,ALI_SPDIF_CTRL + 1));
+
+ while (((R1 < 0x0B )||(R1 > 0x0E)) && (R1 != 0x12) && count <= 50000) {
+ count ++;
+ snd_ali_delay(codec, 6);
+ bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
+ R1 = bval & 0x1F;
+ }
+
+ if (count > 50000) {
+ snd_printk("ali_detect_spdif_rate: timeout!\n");
+ return;
+ }
+
+ count = 0;
+ while (count++ <= 50000) {
+ snd_ali_delay(codec, 6);
+ bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
+ R2 = bval & 0x1F;
+ if (R2 != R1) R1 = R2; else break;
+ }
+
+ if (count > 50000) {
+ snd_printk("ali_detect_spdif_rate: timeout!\n");
+ return;
+ }
+
+ if (R2 >= 0x0b && R2 <= 0x0e) {
+ wval = inw(ALI_REG(codec,ALI_SPDIF_CTRL + 2));
+ wval &= 0xE0F0;
+ wval |= (u16)0x09 << 8 | (u16)0x05;
+ outw(wval,ALI_REG(codec,ALI_SPDIF_CTRL + 2));
+
+ bval = inb(ALI_REG(codec,ALI_SPDIF_CS +3)) & 0xF0;
+ outb(bval|0x02,ALI_REG(codec,ALI_SPDIF_CS + 3));
+ } else if (R2 == 0x12) {
+ wval = inw(ALI_REG(codec,ALI_SPDIF_CTRL + 2));
+ wval &= 0xE0F0;
+ wval |= (u16)0x0E << 8 | (u16)0x08;
+ outw(wval,ALI_REG(codec,ALI_SPDIF_CTRL + 2));
+
+ bval = inb(ALI_REG(codec,ALI_SPDIF_CS +3)) & 0xF0;
+ outb(bval|0x03,ALI_REG(codec,ALI_SPDIF_CS + 3));
+ }
+}
+
+static unsigned int snd_ali_get_spdif_in_rate(ali_t *codec)
+{
+ u32 dwRate = 0;
+ u8 bval = 0;
+
+ bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
+ bval &= 0x7F;
+ bval |= 0x40;
+ outb(bval, ALI_REG(codec,ALI_SPDIF_CTRL));
+
+ snd_ali_detect_spdif_rate(codec);
+
+ bval = inb(ALI_REG(codec,ALI_SPDIF_CS + 3));
+ bval &= 0x0F;
+
+ if (bval == 0) dwRate = 44100;
+ if (bval == 1) dwRate = 48000;
+ if (bval == 2) dwRate = 32000;
+
+ return dwRate;
+}
+
+static void snd_ali_enable_spdif_in(ali_t *codec)
+{
+ unsigned int dwVal;
+
+ dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
+ dwVal |= ALI_SPDIF_IN_SUPPORT;
+ outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
+
+ dwVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
+ dwVal |= 0x02;
+ outb(dwVal, ALI_REG(codec, ALI_SPDIF_CTRL));
+
+ snd_ali_enable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
+}
+
+static void snd_ali_disable_spdif_in(ali_t *codec)
+{
+ unsigned int dwVal;
+
+ dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
+ dwVal &= ~ALI_SPDIF_IN_SUPPORT;
+ outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
+
+ snd_ali_disable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
+}
+
+
+static void snd_ali_set_spdif_out_rate(ali_t *codec, unsigned int rate)
+{
+ unsigned char bVal;
+ unsigned int dwRate = 0;
+
+ if (rate == 32000) dwRate = 0x300;
+ if (rate == 44100) dwRate = 0;
+ if (rate == 48000) dwRate = 0x200;
+
+ bVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
+ bVal &= (unsigned char)(~(1<<6));
+
+ bVal |= 0x80; //select right
+ outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
+ outb(dwRate | 0x20, ALI_REG(codec, ALI_SPDIF_CS + 2));
+
+ bVal &= (~0x80); //select left
+ outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
+ outw(rate | 0x10, ALI_REG(codec, ALI_SPDIF_CS + 2));
+}
+
+static void snd_ali_enable_spdif_out(ali_t *codec)
+{
+ unsigned short wVal;
+ unsigned char bVal;
+
+ struct pci_dev *pci_dev = NULL;
+
+ pci_dev = codec->pci_m1533;
+ if (pci_dev == NULL)
+ return;
+ pci_read_config_byte(pci_dev, 0x61, &bVal);
+ bVal |= 0x40;
+ pci_write_config_byte(pci_dev, 0x61, bVal);
+ pci_read_config_byte(pci_dev, 0x7d, &bVal);
+ bVal |= 0x01;
+ pci_write_config_byte(pci_dev, 0x7d, bVal);
+
+ pci_read_config_byte(pci_dev, 0x7e, &bVal);
+ bVal &= (~0x20);
+ bVal |= 0x10;
+ pci_write_config_byte(pci_dev, 0x7e, bVal);
+
+ bVal = inb(ALI_REG(codec, ALI_SCTRL));
+ outb(bVal | ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
+
+ bVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
+ outb(bVal & ALI_SPDIF_OUT_CH_STATUS, ALI_REG(codec, ALI_SPDIF_CTRL));
+
+ {
+ wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
+ wVal |= ALI_SPDIF_OUT_SEL_PCM;
+ outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
+ snd_ali_disable_special_channel(codec,ALI_SPDIF_OUT_CHANNEL);
+ }
+}
+
+static void snd_ali_enable_spdif_chnout(ali_t *codec)
+{
+ unsigned short wVal = 0;
+
+ wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
+ wVal &= ~ALI_SPDIF_OUT_SEL_PCM;
+ outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
+/*
+ wVal = inw(ALI_REG(codec, ALI_SPDIF_CS));
+ if (flag & ALI_SPDIF_OUT_NON_PCM)
+ wVal |= 0x0002;
+ else
+ wVal &= (~0x0002);
+ outw(wVal, ALI_REG(codec, ALI_SPDIF_CS));
+*/
+ snd_ali_enable_special_channel(codec,ALI_SPDIF_OUT_CHANNEL);
+}
+
+static void snd_ali_disable_spdif_chnout(ali_t *codec)
+{
+ unsigned short wVal = 0;
+ wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
+ wVal |= ALI_SPDIF_OUT_SEL_PCM;
+ outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
+
+ snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
+}
+
+static void snd_ali_disable_spdif_out(ali_t *codec)
+{
+ unsigned char bVal;
+
+ bVal = inb(ALI_REG(codec, ALI_SCTRL));
+ outb(bVal & ~ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
+
+ snd_ali_disable_spdif_chnout(codec);
+}
+
+static void snd_ali_update_ptr(ali_t *codec,int channel)
+{
+ snd_ali_voice_t *pvoice = NULL;
+ snd_pcm_runtime_t *runtime;
+ snd_ali_channel_control_t *pchregs = NULL;
+ unsigned int old, mask;
+#ifdef ALI_DEBUG
+ unsigned int temp, cspf;
+#endif
+
+ pchregs = &(codec->chregs);
+
+ // check if interrupt occurred for channel
+ old = pchregs->data.aint;
+ mask = ((unsigned int) 1L) << (channel & 0x1f);
+
+ if (!(old & mask))
+ return;
+
+ pvoice = &codec->synth.voices[channel];
+ runtime = pvoice->substream->runtime;
+
+ udelay(100);
+ spin_lock(&codec->reg_lock);
+
+ if (pvoice->pcm && pvoice->substream) {
+ /* pcm interrupt */
+#ifdef ALI_DEBUG
+ outb((u8)(pvoice->number), ALI_REG(codec, ALI_GC_CIR));
+ temp = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
+ cspf = (inl(ALI_REG(codec, ALI_CSPF)) & mask) == mask;
+#endif
+ if (pvoice->running) {
+ snd_ali_printk("update_ptr: cso=%4.4x cspf=%d.\n",(u16)temp,cspf);
+ spin_unlock(&codec->reg_lock);
+ snd_pcm_period_elapsed(pvoice->substream);
+ spin_lock(&codec->reg_lock);
+ } else {
+ snd_ali_stop_voice(codec, channel);
+ snd_ali_disable_voice_irq(codec, channel);
+ }
+ } else if (codec->synth.voices[channel].synth) {
+ /* synth interrupt */
+ } else if (codec->synth.voices[channel].midi) {
+ /* midi interrupt */
+ } else {
+ /* unknown interrupt */
+ snd_ali_stop_voice(codec, channel);
+ snd_ali_disable_voice_irq(codec, channel);
+ }
+ spin_unlock(&codec->reg_lock);
+ outl(mask,ALI_REG(codec,pchregs->regs.aint));
+ pchregs->data.aint = old & (~mask);
+}
+
+static void snd_ali_interrupt(ali_t * codec)
+{
+ int channel;
+ unsigned int audio_int;
+ snd_ali_channel_control_t *pchregs = NULL;
+ pchregs = &(codec->chregs);
+
+ audio_int = inl(ALI_REG(codec, ALI_MISCINT));
+ if (audio_int & ADDRESS_IRQ) {
+ // get interrupt status for all channels
+ pchregs->data.aint = inl(ALI_REG(codec,pchregs->regs.aint));
+ for (channel = 0; channel < ALI_CHANNELS; channel++) {
+ snd_ali_update_ptr(codec, channel);
+ }
+ }
+ outl((TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
+ ALI_REG(codec,ALI_MISCINT));
+}
+
+
+static irqreturn_t snd_ali_card_interrupt(int irq,
+ void *dev_id,
+ struct pt_regs *regs)
+{
+ ali_t *codec = dev_id;
+
+ if (codec == NULL)
+ return IRQ_NONE;
+ snd_ali_interrupt(codec);
+ return IRQ_HANDLED;
+}
+
+
+static snd_ali_voice_t *snd_ali_alloc_voice(ali_t * codec, int type, int rec)
+{
+ snd_ali_voice_t *pvoice = NULL;
+ unsigned long flags;
+ int idx;
+
+ snd_ali_printk("alloc_voice: type=%d rec=%d\n",type,rec);
+
+ spin_lock_irqsave(&codec->voice_alloc, flags);
+ if (type == SNDRV_ALI_VOICE_TYPE_PCM) {
+ idx = snd_ali_find_free_channel(codec,rec);
+ if(idx < 0) {
+ snd_printk("ali_alloc_voice: err.\n");
+ spin_unlock_irqrestore(&codec->voice_alloc, flags);
+ return NULL;
+ }
+ pvoice = &(codec->synth.voices[idx]);
+ pvoice->use = 1;
+ pvoice->pcm = 1;
+ pvoice->mode = rec;
+ spin_unlock_irqrestore(&codec->voice_alloc, flags);
+ return pvoice;
+ }
+ spin_unlock_irqrestore(&codec->voice_alloc, flags);
+ return NULL;
+}
+
+
+static void snd_ali_free_voice(ali_t * codec, snd_ali_voice_t *pvoice)
+{
+ unsigned long flags;
+ void (*private_free)(void *);
+ void *private_data;
+
+ snd_ali_printk("free_voice: channel=%d\n",pvoice->number);
+ if (pvoice == NULL || !pvoice->use)
+ return;
+ snd_ali_clear_voices(codec, pvoice->number, pvoice->number);
+ spin_lock_irqsave(&codec->voice_alloc, flags);
+ private_free = pvoice->private_free;
+ private_data = pvoice->private_data;
+ pvoice->private_free = NULL;
+ pvoice->private_data = NULL;
+ if (pvoice->pcm) {
+ snd_ali_free_channel_pcm(codec, pvoice->number);
+ }
+ pvoice->use = pvoice->pcm = pvoice->synth = 0;
+ pvoice->substream = NULL;
+ spin_unlock_irqrestore(&codec->voice_alloc, flags);
+ if (private_free)
+ private_free(private_data);
+}
+
+
+static void snd_ali_clear_voices(ali_t * codec,
+ unsigned int v_min,
+ unsigned int v_max)
+{
+ unsigned int i;
+
+ for (i = v_min; i <= v_max; i++) {
+ snd_ali_stop_voice(codec, i);
+ snd_ali_disable_voice_irq(codec, i);
+ }
+}
+
+static void snd_ali_write_voice_regs(ali_t * codec,
+ unsigned int Channel,
+ unsigned int LBA,
+ unsigned int CSO,
+ unsigned int ESO,
+ unsigned int DELTA,
+ unsigned int ALPHA_FMS,
+ unsigned int GVSEL,
+ unsigned int PAN,
+ unsigned int VOL,
+ unsigned int CTRL,
+ unsigned int EC)
+{
+ unsigned int ctlcmds[4];
+
+ outb((unsigned char)(Channel & 0x001f),ALI_REG(codec,ALI_GC_CIR));
+
+ ctlcmds[0] = (CSO << 16) | (ALPHA_FMS & 0x0000ffff);
+ ctlcmds[1] = LBA;
+ ctlcmds[2] = (ESO << 16) | (DELTA & 0x0ffff);
+ ctlcmds[3] = (GVSEL << 31) |
+ ((PAN & 0x0000007f) << 24) |
+ ((VOL & 0x000000ff) << 16) |
+ ((CTRL & 0x0000000f) << 12) |
+ (EC & 0x00000fff);
+
+ outb(Channel, ALI_REG(codec, ALI_GC_CIR));
+
+ outl(ctlcmds[0], ALI_REG(codec,ALI_CSO_ALPHA_FMS));
+ outl(ctlcmds[1], ALI_REG(codec,ALI_LBA));
+ outl(ctlcmds[2], ALI_REG(codec,ALI_ESO_DELTA));
+ outl(ctlcmds[3], ALI_REG(codec,ALI_GVSEL_PAN_VOC_CTRL_EC));
+
+ outl(0x30000000, ALI_REG(codec, ALI_EBUF1)); /* Still Mode */
+ outl(0x30000000, ALI_REG(codec, ALI_EBUF2)); /* Still Mode */
+}
+
+static unsigned int snd_ali_convert_rate(unsigned int rate, int rec)
+{
+ unsigned int delta;
+
+ if (rate < 4000) rate = 4000;
+ if (rate > 48000) rate = 48000;
+
+ if (rec) {
+ if (rate == 44100)
+ delta = 0x116a;
+ else if (rate == 8000)
+ delta = 0x6000;
+ else if (rate == 48000)
+ delta = 0x1000;
+ else
+ delta = ((48000 << 12) / rate) & 0x0000ffff;
+ } else {
+ if (rate == 44100)
+ delta = 0xeb3;
+ else if (rate == 8000)
+ delta = 0x2ab;
+ else if (rate == 48000)
+ delta = 0x1000;
+ else
+ delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
+ }
+
+ return delta;
+}
+
+static unsigned int snd_ali_control_mode(snd_pcm_substream_t *substream)
+{
+ unsigned int CTRL;
+ snd_pcm_runtime_t *runtime = substream->runtime;
+
+ /* set ctrl mode
+ CTRL default: 8-bit (unsigned) mono, loop mode enabled
+ */
+ CTRL = 0x00000001;
+ if (snd_pcm_format_width(runtime->format) == 16)
+ CTRL |= 0x00000008; // 16-bit data
+ if (!snd_pcm_format_unsigned(runtime->format))
+ CTRL |= 0x00000002; // signed data
+ if (runtime->channels > 1)
+ CTRL |= 0x00000004; // stereo data
+ return CTRL;
+}
+
+/*
+ * PCM part
+ */
+
+static int snd_ali_ioctl(snd_pcm_substream_t * substream,
+ unsigned int cmd, void *arg)
+{
+ return snd_pcm_lib_ioctl(substream, cmd, arg);
+}
+
+static int snd_ali_trigger(snd_pcm_substream_t *substream,
+ int cmd)
+
+{
+ ali_t *codec = snd_pcm_substream_chip(substream);
+ struct list_head *pos;
+ snd_pcm_substream_t *s;
+ unsigned int what, whati, capture_flag;
+ snd_ali_voice_t *pvoice = NULL, *evoice = NULL;
+ unsigned int val;
+ int do_start;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ do_start = 1; break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ do_start = 0; break;
+ default:
+ return -EINVAL;
+ }
+
+ what = whati = capture_flag = 0;
+ snd_pcm_group_for_each(pos, substream) {
+ s = snd_pcm_group_substream_entry(pos);
+ if ((ali_t *) snd_pcm_substream_chip(s) == codec) {
+ pvoice = (snd_ali_voice_t *) s->runtime->private_data;
+ evoice = pvoice->extra;
+ what |= 1 << (pvoice->number & 0x1f);
+ if (evoice == NULL) {
+ whati |= 1 << (pvoice->number & 0x1f);
+ } else {
+ whati |= 1 << (evoice->number & 0x1f);
+ what |= 1 << (evoice->number & 0x1f);
+ }
+ if (do_start) {
+ pvoice->running = 1;
+ if (evoice != NULL)
+ evoice->running = 1;
+ } else {
+ pvoice->running = 0;
+ if (evoice != NULL)
+ evoice->running = 0;
+ }
+ snd_pcm_trigger_done(s, substream);
+ if (pvoice->mode)
+ capture_flag = 1;
+ }
+ }
+ spin_lock(&codec->reg_lock);
+ if (! do_start) {
+ outl(what, ALI_REG(codec, ALI_STOP));
+ }
+ val = inl(ALI_REG(codec, ALI_AINTEN));
+ if (do_start) {
+ val |= whati;
+ } else {
+ val &= ~whati;
+ }
+ outl(val, ALI_REG(codec, ALI_AINTEN));
+ if (do_start) {
+ outl(what, ALI_REG(codec, ALI_START));
+ }
+ snd_ali_printk("trigger: what=%xh whati=%xh\n",what,whati);
+ spin_unlock(&codec->reg_lock);
+
+ return 0;
+}
+
+static int snd_ali_playback_hw_params(snd_pcm_substream_t * substream,
+ snd_pcm_hw_params_t * hw_params)
+{
+ ali_t *codec = snd_pcm_substream_chip(substream);
+ snd_pcm_runtime_t *runtime = substream->runtime;
+ snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
+ snd_ali_voice_t *evoice = pvoice->extra;
+ int err;
+ err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
+ if (err < 0) return err;
+
+ /* voice management */
+
+ if (params_buffer_size(hw_params)/2 != params_period_size(hw_params)) {
+ if (evoice == NULL) {
+ evoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, 0);
+ if (evoice == NULL)
+ return -ENOMEM;
+ pvoice->extra = evoice;
+ evoice->substream = substream;
+ }
+ } else {
+ if (evoice != NULL) {
+ snd_ali_free_voice(codec, evoice);
+ pvoice->extra = evoice = NULL;
+ }
+ }
+
+ return 0;
+}
+
+static int snd_ali_playback_hw_free(snd_pcm_substream_t * substream)
+{
+ ali_t *codec = snd_pcm_substream_chip(substream);
+ snd_pcm_runtime_t *runtime = substream->runtime;
+ snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
+ snd_ali_voice_t *evoice = pvoice ? pvoice->extra : NULL;
+
+ snd_pcm_lib_free_pages(substream);
+ if (evoice != NULL) {
+ snd_ali_free_voice(codec, evoice);
+ pvoice->extra = NULL;
+ }
+ return 0;
+}
+
+static int snd_ali_capture_hw_params(snd_pcm_substream_t * substream,
+ snd_pcm_hw_params_t * hw_params)
+{
+ return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
+}
+
+static int snd_ali_capture_hw_free(snd_pcm_substream_t * substream)
+{
+ return snd_pcm_lib_free_pages(substream);
+}
+
+static int snd_ali_playback_prepare(snd_pcm_substream_t * substream)
+{
+ ali_t *codec = snd_pcm_substream_chip(substream);
+ snd_pcm_runtime_t *runtime = substream->runtime;
+ snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
+ snd_ali_voice_t *evoice = pvoice->extra;
+ unsigned long flags;
+
+ unsigned int LBA;
+ unsigned int Delta;
+ unsigned int ESO;
+ unsigned int CTRL;
+ unsigned int GVSEL;
+ unsigned int PAN;
+ unsigned int VOL;
+ unsigned int EC;
+
+ snd_ali_printk("playback_prepare ...\n");
+
+ spin_lock_irqsave(&codec->reg_lock, flags);
+
+ /* set Delta (rate) value */
+ Delta = snd_ali_convert_rate(runtime->rate, 0);
+
+ if ((pvoice->number == ALI_SPDIF_IN_CHANNEL) ||
+ (pvoice->number == ALI_PCM_IN_CHANNEL))
+ snd_ali_disable_special_channel(codec, pvoice->number);
+ else if (codec->spdif_support &&
+ (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_OUT_CH_ENABLE)
+ && (pvoice->number == ALI_SPDIF_OUT_CHANNEL)) {
+ snd_ali_set_spdif_out_rate(codec, runtime->rate);
+ Delta = 0x1000;
+ }
+
+ /* set Loop Back Address */
+ LBA = runtime->dma_addr;
+
+ /* set interrupt count size */
+ pvoice->count = runtime->period_size;
+
+ /* set target ESO for channel */
+ pvoice->eso = runtime->buffer_size;
+
+ snd_ali_printk("playback_prepare: eso=%xh count=%xh\n",pvoice->eso,pvoice->count);
+
+ /* set ESO to capture first MIDLP interrupt */
+ ESO = pvoice->eso -1;
+ /* set ctrl mode */
+ CTRL = snd_ali_control_mode(substream);
+
+ GVSEL = 1;
+ PAN = 0;
+ VOL = 0;
+ EC = 0;
+ snd_ali_printk("playback_prepare:\n ch=%d, Rate=%d Delta=%xh,GVSEL=%xh,PAN=%xh,CTRL=%xh\n",pvoice->number,runtime->rate,Delta,GVSEL,PAN,CTRL);
+ snd_ali_write_voice_regs( codec,
+ pvoice->number,
+ LBA,
+ 0, /* cso */
+ ESO,
+ Delta,
+ 0, /* alpha */
+ GVSEL,
+ PAN,
+ VOL,
+ CTRL,
+ EC);
+ if (evoice != NULL) {
+ evoice->count = pvoice->count;
+ evoice->eso = pvoice->count << 1;
+ ESO = evoice->eso - 1;
+ snd_ali_write_voice_regs(codec,
+ evoice->number,
+ LBA,
+ 0, /* cso */
+ ESO,
+ Delta,
+ 0, /* alpha */
+ GVSEL,
+ (unsigned int)0x7f,
+ (unsigned int)0x3ff,
+ CTRL,
+ EC);
+ }
+ spin_unlock_irqrestore(&codec->reg_lock, flags);
+ return 0;
+}
+
+
+static int snd_ali_capture_prepare(snd_pcm_substream_t * substream)
+{
+ ali_t *codec = snd_pcm_substream_chip(substream);
+ snd_pcm_runtime_t *runtime = substream->runtime;
+ snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
+ unsigned long flags;
+ unsigned int LBA;
+ unsigned int Delta;
+ unsigned int ESO;
+ unsigned int CTRL;
+ unsigned int GVSEL;
+ unsigned int PAN;
+ unsigned int VOL;
+ unsigned int EC;
+ u8 bValue;
+
+ spin_lock_irqsave(&codec->reg_lock, flags);
+
+ snd_ali_printk("capture_prepare...\n");
+
+ snd_ali_enable_special_channel(codec,pvoice->number);
+
+ Delta = snd_ali_convert_rate(runtime->rate, 1);
+
+ // Prepare capture intr channel
+ if (pvoice->number == ALI_SPDIF_IN_CHANNEL) {
+
+ unsigned int rate;
+
+ if (codec->revision != ALI_5451_V02) {
+ spin_unlock_irqrestore(&codec->reg_lock, flags);
+ return -1;
+ }
+ rate = snd_ali_get_spdif_in_rate(codec);
+ if (rate == 0) {
+ snd_printk("ali_capture_preapre: spdif rate detect err!\n");
+ rate = 48000;
+ }
+ bValue = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
+ if (bValue & 0x10) {
+ outb(bValue,ALI_REG(codec,ALI_SPDIF_CTRL));
+ printk("clear SPDIF parity error flag.\n");
+ }
+
+ if (rate != 48000)
+ Delta = ((rate << 12)/runtime->rate)&0x00ffff;
+ }
+
+ // set target ESO for channel
+ pvoice->eso = runtime->buffer_size;
+
+ // set interrupt count size
+ pvoice->count = runtime->period_size;
+
+ // set Loop Back Address
+ LBA = runtime->dma_addr;
+
+ // set ESO to capture first MIDLP interrupt
+ ESO = pvoice->eso - 1;
+ CTRL = snd_ali_control_mode(substream);
+ GVSEL = 0;
+ PAN = 0x00;
+ VOL = 0x00;
+ EC = 0;
+
+ snd_ali_write_voice_regs( codec,
+ pvoice->number,
+ LBA,
+ 0, /* cso */
+ ESO,
+ Delta,
+ 0, /* alpha */
+ GVSEL,
+ PAN,
+ VOL,
+ CTRL,
+ EC);
+
+
+ spin_unlock_irqrestore(&codec->reg_lock, flags);
+
+ return 0;
+}
+
+
+static snd_pcm_uframes_t snd_ali_playback_pointer(snd_pcm_substream_t *substream)
+{
+ ali_t *codec = snd_pcm_substream_chip(substream);
+ snd_pcm_runtime_t *runtime = substream->runtime;
+ snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
+ unsigned int cso;
+
+ spin_lock(&codec->reg_lock);
+ if (!pvoice->running) {
+ spin_unlock(&codec->reg_lock);
+ return 0;
+ }
+ outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
+ cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
+ spin_unlock(&codec->reg_lock);
+ snd_ali_printk("playback pointer returned cso=%xh.\n", cso);
+
+ return cso;
+}
+
+
+static snd_pcm_uframes_t snd_ali_capture_pointer(snd_pcm_substream_t *substream)
+{
+ ali_t *codec = snd_pcm_substream_chip(substream);
+ snd_pcm_runtime_t *runtime = substream->runtime;
+ snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
+ unsigned int cso;
+ unsigned long flags;
+
+ spin_lock_irqsave(&codec->reg_lock, flags);
+ if (!pvoice->running) {
+ spin_unlock_irqrestore(&codec->reg_lock, flags);
+ return 0;
+ }
+ outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
+ cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
+ spin_unlock_irqrestore(&codec->reg_lock, flags);
+
+ return cso;
+}
+
+static snd_pcm_hardware_t snd_ali_playback =
+{
+ .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_RESUME |
+ SNDRV_PCM_INFO_SYNC_START),
+ .formats = (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
+ .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
+ .rate_min = 4000,
+ .rate_max = 48000,
+ .channels_min = 1,
+ .channels_max = 2,
+ .buffer_bytes_max = (256*1024),
+ .period_bytes_min = 64,
+ .period_bytes_max = (256*1024),
+ .periods_min = 1,
+ .periods_max = 1024,
+ .fifo_size = 0,
+};
+
+/*
+ * Capture support device description
+ */
+
+static snd_pcm_hardware_t snd_ali_capture =
+{
+ .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_RESUME |
+ SNDRV_PCM_INFO_SYNC_START),
+ .formats = (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
+ .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
+ .rate_min = 4000,
+ .rate_max = 48000,
+ .channels_min = 1,
+ .channels_max = 2,
+ .buffer_bytes_max = (128*1024),
+ .period_bytes_min = 64,
+ .period_bytes_max = (128*1024),
+ .periods_min = 1,
+ .periods_max = 1024,
+ .fifo_size = 0,
+};
+
+static void snd_ali_pcm_free_substream(snd_pcm_runtime_t *runtime)
+{
+ unsigned long flags;
+ snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
+ ali_t *codec;
+
+ if (pvoice) {
+ codec = pvoice->codec;
+ spin_lock_irqsave(&codec->reg_lock, flags);
+ snd_ali_free_voice(pvoice->codec, pvoice);
+ spin_unlock_irqrestore(&codec->reg_lock, flags);
+ }
+}
+
+static int snd_ali_playback_open(snd_pcm_substream_t * substream)
+{
+ ali_t *codec = snd_pcm_substream_chip(substream);
+ snd_pcm_runtime_t *runtime = substream->runtime;
+ snd_ali_voice_t *pvoice;
+ unsigned long flags = 0;
+
+ spin_lock_irqsave(&codec->reg_lock, flags);
+ pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, 0);
+ if (pvoice == NULL) {
+ spin_unlock_irqrestore(&codec->reg_lock, flags);
+ return -EAGAIN;
+ }
+ pvoice->codec = codec;
+ spin_unlock_irqrestore(&codec->reg_lock, flags);
+
+ pvoice->substream = substream;
+ runtime->private_data = pvoice;
+ runtime->private_free = snd_ali_pcm_free_substream;
+
+ runtime->hw = snd_ali_playback;
+ snd_pcm_set_sync(substream);
+ snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 64*1024);
+ return 0;
+}
+
+
+static int snd_ali_capture_open(snd_pcm_substream_t * substream)
+{
+ ali_t *codec = snd_pcm_substream_chip(substream);
+ snd_pcm_runtime_t *runtime = substream->runtime;
+ snd_ali_voice_t *pvoice;
+ unsigned long flags;
+
+ spin_lock_irqsave(&codec->reg_lock, flags);
+ pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, 1);
+ if (pvoice == NULL) {
+ spin_unlock_irqrestore(&codec->reg_lock, flags);
+ return -EAGAIN;
+ }
+ pvoice->codec = codec;
+ spin_unlock_irqrestore(&codec->reg_lock, flags);
+
+ pvoice->substream = substream;
+ runtime->private_data = pvoice;
+ runtime->private_free = snd_ali_pcm_free_substream;
+ runtime->hw = snd_ali_capture;
+ snd_pcm_set_sync(substream);
+ snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 64*1024);
+ return 0;
+}
+
+
+static int snd_ali_playback_close(snd_pcm_substream_t * substream)
+{
+ return 0;
+}
+
+static int snd_ali_capture_close(snd_pcm_substream_t * substream)
+{
+ ali_t *codec = snd_pcm_substream_chip(substream);
+ snd_pcm_runtime_t *runtime = substream->runtime;
+ snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
+
+ snd_ali_disable_special_channel(codec,pvoice->number);
+
+ return 0;
+}
+
+static snd_pcm_ops_t snd_ali_playback_ops = {
+ .open = snd_ali_playback_open,
+ .close = snd_ali_playback_close,
+ .ioctl = snd_ali_ioctl,
+ .hw_params = snd_ali_playback_hw_params,
+ .hw_free = snd_ali_playback_hw_free,
+ .prepare = snd_ali_playback_prepare,
+ .trigger = snd_ali_trigger,
+ .pointer = snd_ali_playback_pointer,
+};
+
+static snd_pcm_ops_t snd_ali_capture_ops = {
+ .open = snd_ali_capture_open,
+ .close = snd_ali_capture_close,
+ .ioctl = snd_ali_ioctl,
+ .hw_params = snd_ali_capture_hw_params,
+ .hw_free = snd_ali_capture_hw_free,
+ .prepare = snd_ali_capture_prepare,
+ .trigger = snd_ali_trigger,
+ .pointer = snd_ali_capture_pointer,
+};
+
+
+static void snd_ali_pcm_free(snd_pcm_t *pcm)
+{
+ ali_t *codec = pcm->private_data;
+ codec->pcm = NULL;
+}
+
+static int __devinit snd_ali_pcm(ali_t * codec, int device, snd_pcm_t ** rpcm)
+{
+ snd_pcm_t *pcm;
+ int err;
+
+ if (rpcm) *rpcm = NULL;
+ err = snd_pcm_new(codec->card, "ALI 5451", device, ALI_CHANNELS, 1, &pcm);
+ if (err < 0) {
+ snd_printk("snd_ali_pcm: err called snd_pcm_new.\n");
+ return err;
+ }
+ pcm->private_data = codec;
+ pcm->private_free = snd_ali_pcm_free;
+ pcm->info_flags = 0;
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ali_playback_ops);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ali_capture_ops);
+
+ snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+ snd_dma_pci_data(codec->pci), 64*1024, 128*1024);
+
+ pcm->info_flags = 0;
+ pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
+ strcpy(pcm->name, "ALI 5451");
+ codec->pcm = pcm;
+ if (rpcm) *rpcm = pcm;
+ return 0;
+}
+
+#define ALI5451_SPDIF(xname, xindex, value) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\
+.info = snd_ali5451_spdif_info, .get = snd_ali5451_spdif_get, \
+.put = snd_ali5451_spdif_put, .private_value = value}
+
+static int snd_ali5451_spdif_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 1;
+ return 0;
+}
+
+static int snd_ali5451_spdif_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+ unsigned long flags;
+ ali_t *codec = kcontrol->private_data;
+ unsigned int enable;
+
+ enable = ucontrol->value.integer.value[0] ? 1 : 0;
+
+ spin_lock_irqsave(&codec->reg_lock, flags);
+ switch(kcontrol->private_value) {
+ case 0:
+ enable = (codec->spdif_mask & 0x02) ? 1 : 0;
+ break;
+ case 1:
+ enable = ((codec->spdif_mask & 0x02) && (codec->spdif_mask & 0x04)) ? 1 : 0;
+ break;
+ case 2:
+ enable = (codec->spdif_mask & 0x01) ? 1 : 0;
+ break;
+ default:
+ break;
+ }
+ ucontrol->value.integer.value[0] = enable;
+ spin_unlock_irqrestore(&codec->reg_lock, flags);
+ return 0;
+}
+
+static int snd_ali5451_spdif_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+ unsigned long flags;
+ ali_t *codec = kcontrol->private_data;
+ unsigned int change = 0, enable = 0;
+
+ enable = ucontrol->value.integer.value[0] ? 1 : 0;
+
+ spin_lock_irqsave(&codec->reg_lock, flags);
+ switch (kcontrol->private_value) {
+ case 0:
+ change = (codec->spdif_mask & 0x02) ? 1 : 0;
+ change = change ^ enable;
+ if (change) {
+ if (enable) {
+ codec->spdif_mask |= 0x02;
+ snd_ali_enable_spdif_out(codec);
+ } else {
+ codec->spdif_mask &= ~(0x02);
+ codec->spdif_mask &= ~(0x04);
+ snd_ali_disable_spdif_out(codec);
+ }
+ }
+ break;
+ case 1:
+ change = (codec->spdif_mask & 0x04) ? 1 : 0;
+ change = change ^ enable;
+ if (change && (codec->spdif_mask & 0x02)) {
+ if (enable) {
+ codec->spdif_mask |= 0x04;
+ snd_ali_enable_spdif_chnout(codec);
+ } else {
+ codec->spdif_mask &= ~(0x04);
+ snd_ali_disable_spdif_chnout(codec);
+ }
+ }
+ break;
+ case 2:
+ change = (codec->spdif_mask & 0x01) ? 1 : 0;
+ change = change ^ enable;
+ if (change) {
+ if (enable) {
+ codec->spdif_mask |= 0x01;
+ snd_ali_enable_spdif_in(codec);
+ } else {
+ codec->spdif_mask &= ~(0x01);
+ snd_ali_disable_spdif_in(codec);
+ }
+ }
+ break;
+ default:
+ break;
+ }
+ spin_unlock_irqrestore(&codec->reg_lock, flags);
+
+ return change;
+}
+
+static snd_kcontrol_new_t snd_ali5451_mixer_spdif[] __devinitdata = {
+ /* spdif aplayback switch */
+ /* FIXME: "IEC958 Playback Switch" may conflict with one on ac97_codec */
+ ALI5451_SPDIF("IEC958 Output switch", 0, 0),
+ /* spdif out to spdif channel */
+ ALI5451_SPDIF("IEC958 Channel Output Switch", 0, 1),
+ /* spdif in from spdif channel */
+ ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, 2)
+};
+
+static void snd_ali_mixer_free_ac97_bus(ac97_bus_t *bus)
+{
+ ali_t *codec = bus->private_data;
+ codec->ac97_bus = NULL;
+}
+
+static void snd_ali_mixer_free_ac97(ac97_t *ac97)
+{
+ ali_t *codec = ac97->private_data;
+ codec->ac97 = NULL;
+}
+
+static int __devinit snd_ali_mixer(ali_t * codec)
+{
+ ac97_template_t ac97;
+ unsigned int idx;
+ int err;
+ static ac97_bus_ops_t ops = {
+ .write = snd_ali_codec_write,
+ .read = snd_ali_codec_read,
+ };
+
+ if ((err = snd_ac97_bus(codec->card, 0, &ops, codec, &codec->ac97_bus)) < 0)
+ return err;
+ codec->ac97_bus->private_free = snd_ali_mixer_free_ac97_bus;
+
+ memset(&ac97, 0, sizeof(ac97));
+ ac97.private_data = codec;
+ ac97.private_free = snd_ali_mixer_free_ac97;
+ if ((err = snd_ac97_mixer(codec->ac97_bus, &ac97, &codec->ac97)) < 0) {
+ snd_printk("ali mixer creating error.\n");
+ return err;
+ }
+ if (codec->spdif_support) {
+ for(idx = 0; idx < ARRAY_SIZE(snd_ali5451_mixer_spdif); idx++) {
+ err=snd_ctl_add(codec->card, snd_ctl_new1(&snd_ali5451_mixer_spdif[idx], codec));
+ if (err < 0) return err;
+ }
+ }
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int ali_suspend(snd_card_t *card, pm_message_t state)
+{
+ ali_t *chip = card->pm_private_data;
+ ali_image_t *im;
+ int i, j;
+
+ im = chip->image;
+ if (! im)
+ return 0;
+
+ snd_pcm_suspend_all(chip->pcm);
+ snd_ac97_suspend(chip->ac97);
+
+ spin_lock_irq(&chip->reg_lock);
+
+ im->regs[ALI_MISCINT >> 2] = inl(ALI_REG(chip, ALI_MISCINT));
+ // im->regs[ALI_START >> 2] = inl(ALI_REG(chip, ALI_START));
+ im->regs[ALI_STOP >> 2] = inl(ALI_REG(chip, ALI_STOP));
+
+ // disable all IRQ bits
+ outl(0, ALI_REG(chip, ALI_MISCINT));
+
+ for (i = 0; i < ALI_GLOBAL_REGS; i++) {
+ if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP))
+ continue;
+ im->regs[i] = inl(ALI_REG(chip, i*4));
+ }
+
+ for (i = 0; i < ALI_CHANNELS; i++) {
+ outb(i, ALI_REG(chip, ALI_GC_CIR));
+ for (j = 0; j < ALI_CHANNEL_REGS; j++)
+ im->channel_regs[i][j] = inl(ALI_REG(chip, j*4 + 0xe0));
+ }
+
+ // stop all HW channel
+ outl(0xffffffff, ALI_REG(chip, ALI_STOP));
+
+ spin_unlock_irq(&chip->reg_lock);
+ pci_disable_device(chip->pci);
+ return 0;
+}
+
+static int ali_resume(snd_card_t *card)
+{
+ ali_t *chip = card->pm_private_data;
+ ali_image_t *im;
+ int i, j;
+
+ im = chip->image;
+ if (! im)
+ return 0;
+
+ pci_enable_device(chip->pci);
+
+ spin_lock_irq(&chip->reg_lock);
+
+ for (i = 0; i < ALI_CHANNELS; i++) {
+ outb(i, ALI_REG(chip, ALI_GC_CIR));
+ for (j = 0; j < ALI_CHANNEL_REGS; j++)
+ outl(im->channel_regs[i][j], ALI_REG(chip, j*4 + 0xe0));
+ }
+
+ for (i = 0; i < ALI_GLOBAL_REGS; i++) {
+ if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP) || (i*4 == ALI_START))
+ continue;
+ outl(im->regs[i], ALI_REG(chip, i*4));
+ }
+
+ // start HW channel
+ outl(im->regs[ALI_START >> 2], ALI_REG(chip, ALI_START));
+ // restore IRQ enable bits
+ outl(im->regs[ALI_MISCINT >> 2], ALI_REG(chip, ALI_MISCINT));
+
+ spin_unlock_irq(&chip->reg_lock);
+
+ snd_ac97_resume(chip->ac97);
+
+ return 0;
+}
+#endif /* CONFIG_PM */
+
+static int snd_ali_free(ali_t * codec)
+{
+ if (codec->hw_initialized)
+ snd_ali_disable_address_interrupt(codec);
+ if (codec->irq >= 0) {
+ synchronize_irq(codec->irq);
+ free_irq(codec->irq, (void *)codec);
+ }
+ if (codec->port)
+ pci_release_regions(codec->pci);
+ pci_disable_device(codec->pci);
+#ifdef CONFIG_PM
+ kfree(codec->image);
+#endif
+ kfree(codec);
+ return 0;
+}
+
+static int snd_ali_chip_init(ali_t *codec)
+{
+ unsigned int legacy;
+ unsigned char temp;
+ struct pci_dev *pci_dev = NULL;
+
+ snd_ali_printk("chip initializing ... \n");
+
+ if (snd_ali_reset_5451(codec)) {
+ snd_printk("ali_chip_init: reset 5451 error.\n");
+ return -1;
+ }
+
+ if (codec->revision == ALI_5451_V02) {
+ pci_dev = codec->pci_m1533;
+ pci_read_config_byte(pci_dev, 0x59, &temp);
+ temp |= 0x80;
+ pci_write_config_byte(pci_dev, 0x59, temp);
+
+ pci_dev = codec->pci_m7101;
+ pci_read_config_byte(pci_dev, 0xb8, &temp);
+ temp |= 0x20;
+ pci_write_config_byte(pci_dev, 0xB8, temp);
+ }
+
+ pci_read_config_dword(codec->pci, 0x44, &legacy);
+ legacy &= 0xff00ff00;
+ legacy |= 0x000800aa;
+ pci_write_config_dword(codec->pci, 0x44, legacy);
+
+ outl(0x80000001, ALI_REG(codec, ALI_GLOBAL_CONTROL));
+ outl(0x00000000, ALI_REG(codec, ALI_AINTEN));
+ outl(0xffffffff, ALI_REG(codec, ALI_AINT));
+ outl(0x00000000, ALI_REG(codec, ALI_VOLUME));
+ outb(0x10, ALI_REG(codec, ALI_MPUR2));
+
+ codec->ac97_ext_id = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_ID);
+ codec->ac97_ext_status = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_STATUS);
+ if (codec->spdif_support) {
+ snd_ali_enable_spdif_out(codec);
+ codec->spdif_mask = 0x00000002;
+ }
+
+ snd_ali_printk("chip initialize succeed.\n");
+ return 0;
+
+}
+
+static int __devinit snd_ali_resources(ali_t *codec)
+{
+ int err;
+
+ snd_ali_printk("resouces allocation ...\n");
+ if ((err = pci_request_regions(codec->pci, "ALI 5451")) < 0)
+ return err;
+ codec->port = pci_resource_start(codec->pci, 0);
+
+ if (request_irq(codec->pci->irq, snd_ali_card_interrupt, SA_INTERRUPT|SA_SHIRQ, "ALI 5451", (void *)codec)) {
+ snd_printk("Unable to request irq.\n");
+ return -EBUSY;
+ }
+ codec->irq = codec->pci->irq;
+ snd_ali_printk("resouces allocated.\n");
+ return 0;
+}
+static int snd_ali_dev_free(snd_device_t *device)
+{
+ ali_t *codec=device->device_data;
+ snd_ali_free(codec);
+ return 0;
+}
+
+static int __devinit snd_ali_create(snd_card_t * card,
+ struct pci_dev *pci,
+ int pcm_streams,
+ int spdif_support,
+ ali_t ** r_ali)
+{
+ ali_t *codec;
+ int i, err;
+ unsigned short cmdw = 0;
+ struct pci_dev *pci_dev = NULL;
+ static snd_device_ops_t ops = {
+ (snd_dev_free_t *)snd_ali_dev_free,
+ NULL,
+ NULL
+ };
+
+ *r_ali = NULL;
+
+ snd_ali_printk("creating ...\n");
+
+ /* enable PCI device */
+ if ((err = pci_enable_device(pci)) < 0)
+ return err;
+ /* check, if we can restrict PCI DMA transfers to 31 bits */
+ if (pci_set_dma_mask(pci, 0x7fffffff) < 0 ||
+ pci_set_consistent_dma_mask(pci, 0x7fffffff) < 0) {
+ snd_printk("architecture does not support 31bit PCI busmaster DMA\n");
+ pci_disable_device(pci);
+ return -ENXIO;
+ }
+
+ if ((codec = kcalloc(1, sizeof(*codec), GFP_KERNEL)) == NULL) {
+ pci_disable_device(pci);
+ return -ENOMEM;
+ }
+
+ spin_lock_init(&codec->reg_lock);
+ spin_lock_init(&codec->voice_alloc);
+
+ codec->card = card;
+ codec->pci = pci;
+ codec->irq = -1;
+ pci_read_config_byte(pci, PCI_REVISION_ID, &codec->revision);
+ codec->spdif_support = spdif_support;
+
+ if (pcm_streams < 1)
+ pcm_streams = 1;
+ if (pcm_streams > 32)
+ pcm_streams = 32;
+
+ pci_set_master(pci);
+ pci_read_config_word(pci, PCI_COMMAND, &cmdw);
+ if ((cmdw & PCI_COMMAND_IO) != PCI_COMMAND_IO) {
+ cmdw |= PCI_COMMAND_IO;
+ pci_write_config_word(pci, PCI_COMMAND, cmdw);
+ }
+ pci_set_master(pci);
+
+ if (snd_ali_resources(codec)) {
+ snd_ali_free(codec);
+ return -EBUSY;
+ }
+
+ synchronize_irq(pci->irq);
+
+ codec->synth.chmap = 0;
+ codec->synth.chcnt = 0;
+ codec->spdif_mask = 0;
+ codec->synth.synthcount = 0;
+
+ if (codec->revision == ALI_5451_V02)
+ codec->chregs.regs.ac97read = ALI_AC97_WRITE;
+ else
+ codec->chregs.regs.ac97read = ALI_AC97_READ;
+ codec->chregs.regs.ac97write = ALI_AC97_WRITE;
+
+ codec->chregs.regs.start = ALI_START;
+ codec->chregs.regs.stop = ALI_STOP;
+ codec->chregs.regs.aint = ALI_AINT;
+ codec->chregs.regs.ainten = ALI_AINTEN;
+
+ codec->chregs.data.start = 0x00;
+ codec->chregs.data.stop = 0x00;
+ codec->chregs.data.aint = 0x00;
+ codec->chregs.data.ainten = 0x00;
+
+ /* M1533: southbridge */
+ pci_dev = pci_find_device(0x10b9, 0x1533, NULL);
+ codec->pci_m1533 = pci_dev;
+ if (! codec->pci_m1533) {
+ snd_printk(KERN_ERR "ali5451: cannot find ALi 1533 chip.\n");
+ snd_ali_free(codec);
+ return -ENODEV;
+ }
+ /* M7101: power management */
+ pci_dev = pci_find_device(0x10b9, 0x7101, NULL);
+ codec->pci_m7101 = pci_dev;
+ if (! codec->pci_m7101 && codec->revision == ALI_5451_V02) {
+ snd_printk(KERN_ERR "ali5451: cannot find ALi 7101 chip.\n");
+ snd_ali_free(codec);
+ return -ENODEV;
+ }
+
+ snd_ali_printk("snd_device_new is called.\n");
+ if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, codec, &ops)) < 0) {
+ snd_ali_free(codec);
+ return err;
+ }
+
+ /* initialise synth voices*/
+ for (i = 0; i < ALI_CHANNELS; i++ ) {
+ codec->synth.voices[i].number = i;
+ }
+
+ if ((err = snd_ali_chip_init(codec)) < 0) {
+ snd_printk("ali create: chip init error.\n");
+ return err;
+ }
+
+#ifdef CONFIG_PM
+ codec->image = kmalloc(sizeof(*codec->image), GFP_KERNEL);
+ if (! codec->image)
+ snd_printk(KERN_WARNING "can't allocate apm buffer\n");
+ else
+ snd_card_set_pm_callback(card, ali_suspend, ali_resume, codec);
+#endif
+
+ snd_ali_enable_address_interrupt(codec);
+ codec->hw_initialized = 1;
+
+ *r_ali = codec;
+ snd_ali_printk("created.\n");
+ return 0;
+}
+
+static int __devinit snd_ali_probe(struct pci_dev *pci,
+ const struct pci_device_id *pci_id)
+{
+ static int dev;
+ snd_card_t *card;
+ ali_t *codec;
+ int err;
+
+ snd_ali_printk("probe ...\n");
+
+ if (dev >= SNDRV_CARDS)
+ return -ENODEV;
+ if (!enable[dev]) {
+ dev++;
+ return -ENOENT;
+ }
+
+ card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
+ if (card == NULL)
+ return -ENOMEM;
+
+ if ((err = snd_ali_create(card, pci, pcm_channels[dev], spdif[dev], &codec)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+
+ snd_ali_printk("mixer building ...\n");
+ if ((err = snd_ali_mixer(codec)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+
+ snd_ali_printk("pcm building ...\n");
+ if ((err = snd_ali_pcm(codec, 0, NULL)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+
+ strcpy(card->driver, "ALI5451");
+ strcpy(card->shortname, "ALI 5451");
+
+ sprintf(card->longname, "%s at 0x%lx, irq %li",
+ card->shortname, codec->port, codec->irq);
+
+ snd_ali_printk("register card.\n");
+ if ((err = snd_card_register(card)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+ pci_set_drvdata(pci, card);
+ dev++;
+ return 0;
+}
+
+static void __devexit snd_ali_remove(struct pci_dev *pci)
+{
+ snd_card_free(pci_get_drvdata(pci));
+ pci_set_drvdata(pci, NULL);
+}
+
+static struct pci_driver driver = {
+ .name = "ALI 5451",
+ .id_table = snd_ali_ids,
+ .probe = snd_ali_probe,
+ .remove = __devexit_p(snd_ali_remove),
+ SND_PCI_PM_CALLBACKS
+};
+
+static int __init alsa_card_ali_init(void)
+{
+ return pci_module_init(&driver);
+}
+
+static void __exit alsa_card_ali_exit(void)
+{
+ pci_unregister_driver(&driver);
+}
+
+module_init(alsa_card_ali_init)
+module_exit(alsa_card_ali_exit)