linux/sound/pci/hda/hda_intel.c

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/*
*
* hda_intel.c - Implementation of primary alsa driver code base
* for Intel HD Audio.
*
* Copyright(c) 2004 Intel Corporation. All rights reserved.
*
* Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
* PeiSen Hou <pshou@realtek.com.tw>
*
* 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., 59
* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* CONTACTS:
*
* Matt Jared matt.jared@intel.com
* Andy Kopp andy.kopp@intel.com
* Dan Kogan dan.d.kogan@intel.com
*
* CHANGES:
*
* 2004.12.01 Major rewrite by tiwai, merged the work of pshou
*
*/
#include <asm/io.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/dma-mapping.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/mutex.h>
#include <sound/core.h>
#include <sound/initval.h>
#include "hda_codec.h"
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
static char *model[SNDRV_CARDS];
static int position_fix[SNDRV_CARDS];
static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
static int single_cmd;
static int enable_msi;
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
module_param_array(model, charp, NULL, 0444);
MODULE_PARM_DESC(model, "Use the given board model.");
module_param_array(position_fix, int, NULL, 0444);
MODULE_PARM_DESC(position_fix, "Fix DMA pointer "
"(0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size).");
module_param_array(probe_mask, int, NULL, 0444);
MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
module_param(single_cmd, bool, 0444);
MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
"(for debugging only).");
module_param(enable_msi, int, 0444);
MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
#ifdef CONFIG_SND_HDA_POWER_SAVE
/* power_save option is defined in hda_codec.c */
/* reset the HD-audio controller in power save mode.
* this may give more power-saving, but will take longer time to
* wake up.
*/
static int power_save_controller = 1;
module_param(power_save_controller, bool, 0644);
MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
#endif
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
"{Intel, ICH6M},"
"{Intel, ICH7},"
"{Intel, ESB2},"
"{Intel, ICH8},"
"{Intel, ICH9},"
"{Intel, ICH10},"
"{Intel, SCH},"
"{ATI, SB450},"
"{ATI, SB600},"
"{ATI, RS600},"
"{ATI, RS690},"
"{ATI, RS780},"
"{ATI, R600},"
"{ATI, RV630},"
"{ATI, RV610},"
"{ATI, RV670},"
"{ATI, RV635},"
"{ATI, RV620},"
"{ATI, RV770},"
"{VIA, VT8251},"
"{VIA, VT8237A},"
"{SiS, SIS966},"
"{ULI, M5461}}");
MODULE_DESCRIPTION("Intel HDA driver");
#define SFX "hda-intel: "
/*
* registers
*/
#define ICH6_REG_GCAP 0x00
#define ICH6_REG_VMIN 0x02
#define ICH6_REG_VMAJ 0x03
#define ICH6_REG_OUTPAY 0x04
#define ICH6_REG_INPAY 0x06
#define ICH6_REG_GCTL 0x08
#define ICH6_REG_WAKEEN 0x0c
#define ICH6_REG_STATESTS 0x0e
#define ICH6_REG_GSTS 0x10
#define ICH6_REG_INTCTL 0x20
#define ICH6_REG_INTSTS 0x24
#define ICH6_REG_WALCLK 0x30
#define ICH6_REG_SYNC 0x34
#define ICH6_REG_CORBLBASE 0x40
#define ICH6_REG_CORBUBASE 0x44
#define ICH6_REG_CORBWP 0x48
#define ICH6_REG_CORBRP 0x4A
#define ICH6_REG_CORBCTL 0x4c
#define ICH6_REG_CORBSTS 0x4d
#define ICH6_REG_CORBSIZE 0x4e
#define ICH6_REG_RIRBLBASE 0x50
#define ICH6_REG_RIRBUBASE 0x54
#define ICH6_REG_RIRBWP 0x58
#define ICH6_REG_RINTCNT 0x5a
#define ICH6_REG_RIRBCTL 0x5c
#define ICH6_REG_RIRBSTS 0x5d
#define ICH6_REG_RIRBSIZE 0x5e
#define ICH6_REG_IC 0x60
#define ICH6_REG_IR 0x64
#define ICH6_REG_IRS 0x68
#define ICH6_IRS_VALID (1<<1)
#define ICH6_IRS_BUSY (1<<0)
#define ICH6_REG_DPLBASE 0x70
#define ICH6_REG_DPUBASE 0x74
#define ICH6_DPLBASE_ENABLE 0x1 /* Enable position buffer */
/* SD offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
/* stream register offsets from stream base */
#define ICH6_REG_SD_CTL 0x00
#define ICH6_REG_SD_STS 0x03
#define ICH6_REG_SD_LPIB 0x04
#define ICH6_REG_SD_CBL 0x08
#define ICH6_REG_SD_LVI 0x0c
#define ICH6_REG_SD_FIFOW 0x0e
#define ICH6_REG_SD_FIFOSIZE 0x10
#define ICH6_REG_SD_FORMAT 0x12
#define ICH6_REG_SD_BDLPL 0x18
#define ICH6_REG_SD_BDLPU 0x1c
/* PCI space */
#define ICH6_PCIREG_TCSEL 0x44
/*
* other constants
*/
/* max number of SDs */
/* ICH, ATI and VIA have 4 playback and 4 capture */
#define ICH6_NUM_CAPTURE 4
#define ICH6_NUM_PLAYBACK 4
/* ULI has 6 playback and 5 capture */
#define ULI_NUM_CAPTURE 5
#define ULI_NUM_PLAYBACK 6
/* ATI HDMI has 1 playback and 0 capture */
#define ATIHDMI_NUM_CAPTURE 0
#define ATIHDMI_NUM_PLAYBACK 1
/* this number is statically defined for simplicity */
#define MAX_AZX_DEV 16
/* max number of fragments - we may use more if allocating more pages for BDL */
#define BDL_SIZE 4096
#define AZX_MAX_BDL_ENTRIES (BDL_SIZE / 16)
#define AZX_MAX_FRAG 32
/* max buffer size - no h/w limit, you can increase as you like */
#define AZX_MAX_BUF_SIZE (1024*1024*1024)
/* max number of PCM devics per card */
#define AZX_MAX_PCMS 8
/* RIRB int mask: overrun[2], response[0] */
#define RIRB_INT_RESPONSE 0x01
#define RIRB_INT_OVERRUN 0x04
#define RIRB_INT_MASK 0x05
/* STATESTS int mask: SD2,SD1,SD0 */
#define AZX_MAX_CODECS 3
#define STATESTS_INT_MASK 0x07
/* SD_CTL bits */
#define SD_CTL_STREAM_RESET 0x01 /* stream reset bit */
#define SD_CTL_DMA_START 0x02 /* stream DMA start bit */
#define SD_CTL_STRIPE (3 << 16) /* stripe control */
#define SD_CTL_TRAFFIC_PRIO (1 << 18) /* traffic priority */
#define SD_CTL_DIR (1 << 19) /* bi-directional stream */
#define SD_CTL_STREAM_TAG_MASK (0xf << 20)
#define SD_CTL_STREAM_TAG_SHIFT 20
/* SD_CTL and SD_STS */
#define SD_INT_DESC_ERR 0x10 /* descriptor error interrupt */
#define SD_INT_FIFO_ERR 0x08 /* FIFO error interrupt */
#define SD_INT_COMPLETE 0x04 /* completion interrupt */
#define SD_INT_MASK (SD_INT_DESC_ERR|SD_INT_FIFO_ERR|\
SD_INT_COMPLETE)
/* SD_STS */
#define SD_STS_FIFO_READY 0x20 /* FIFO ready */
/* INTCTL and INTSTS */
#define ICH6_INT_ALL_STREAM 0xff /* all stream interrupts */
#define ICH6_INT_CTRL_EN 0x40000000 /* controller interrupt enable bit */
#define ICH6_INT_GLOBAL_EN 0x80000000 /* global interrupt enable bit */
/* GCTL unsolicited response enable bit */
#define ICH6_GCTL_UREN (1<<8)
/* GCTL reset bit */
#define ICH6_GCTL_RESET (1<<0)
/* CORB/RIRB control, read/write pointer */
#define ICH6_RBCTL_DMA_EN 0x02 /* enable DMA */
#define ICH6_RBCTL_IRQ_EN 0x01 /* enable IRQ */
#define ICH6_RBRWP_CLR 0x8000 /* read/write pointer clear */
/* below are so far hardcoded - should read registers in future */
#define ICH6_MAX_CORB_ENTRIES 256
#define ICH6_MAX_RIRB_ENTRIES 256
/* position fix mode */
enum {
POS_FIX_AUTO,
POS_FIX_NONE,
POS_FIX_POSBUF,
POS_FIX_FIFO,
};
/* Defines for ATI HD Audio support in SB450 south bridge */
#define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR 0x42
#define ATI_SB450_HDAUDIO_ENABLE_SNOOP 0x02
/* Defines for Nvidia HDA support */
#define NVIDIA_HDA_TRANSREG_ADDR 0x4e
#define NVIDIA_HDA_ENABLE_COHBITS 0x0f
/* Defines for Intel SCH HDA snoop control */
#define INTEL_SCH_HDA_DEVC 0x78
#define INTEL_SCH_HDA_DEVC_NOSNOOP (0x1<<11)
/*
*/
struct azx_dev {
struct snd_dma_buffer bdl; /* BDL buffer */
u32 *posbuf; /* position buffer pointer */
unsigned int bufsize; /* size of the play buffer in bytes */
unsigned int period_bytes; /* size of the period in bytes */
unsigned int frags; /* number for period in the play buffer */
unsigned int fifo_size; /* FIFO size */
void __iomem *sd_addr; /* stream descriptor pointer */
u32 sd_int_sta_mask; /* stream int status mask */
/* pcm support */
struct snd_pcm_substream *substream; /* assigned substream,
* set in PCM open
*/
unsigned int format_val; /* format value to be set in the
* controller and the codec
*/
unsigned char stream_tag; /* assigned stream */
unsigned char index; /* stream index */
unsigned int opened :1;
unsigned int running :1;
unsigned int irq_pending: 1;
};
/* CORB/RIRB */
struct azx_rb {
u32 *buf; /* CORB/RIRB buffer
* Each CORB entry is 4byte, RIRB is 8byte
*/
dma_addr_t addr; /* physical address of CORB/RIRB buffer */
/* for RIRB */
unsigned short rp, wp; /* read/write pointers */
int cmds; /* number of pending requests */
u32 res; /* last read value */
};
struct azx {
struct snd_card *card;
struct pci_dev *pci;
/* chip type specific */
int driver_type;
int playback_streams;
int playback_index_offset;
int capture_streams;
int capture_index_offset;
int num_streams;
/* pci resources */
unsigned long addr;
void __iomem *remap_addr;
int irq;
/* locks */
spinlock_t reg_lock;
struct mutex open_mutex;
/* streams (x num_streams) */
struct azx_dev *azx_dev;
/* PCM */
struct snd_pcm *pcm[AZX_MAX_PCMS];
/* HD codec */
unsigned short codec_mask;
struct hda_bus *bus;
/* CORB/RIRB */
struct azx_rb corb;
struct azx_rb rirb;
/* CORB/RIRB and position buffers */
struct snd_dma_buffer rb;
struct snd_dma_buffer posbuf;
/* flags */
int position_fix;
unsigned int running :1;
unsigned int initialized :1;
unsigned int single_cmd :1;
unsigned int polling_mode :1;
unsigned int msi :1;
/* for debugging */
unsigned int last_cmd; /* last issued command (to sync) */
/* for pending irqs */
struct work_struct irq_pending_work;
};
/* driver types */
enum {
AZX_DRIVER_ICH,
AZX_DRIVER_SCH,
AZX_DRIVER_ATI,
AZX_DRIVER_ATIHDMI,
AZX_DRIVER_VIA,
AZX_DRIVER_SIS,
AZX_DRIVER_ULI,
AZX_DRIVER_NVIDIA,
};
static char *driver_short_names[] __devinitdata = {
[AZX_DRIVER_ICH] = "HDA Intel",
[AZX_DRIVER_SCH] = "HDA Intel MID",
[AZX_DRIVER_ATI] = "HDA ATI SB",
[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
[AZX_DRIVER_VIA] = "HDA VIA VT82xx",
[AZX_DRIVER_SIS] = "HDA SIS966",
[AZX_DRIVER_ULI] = "HDA ULI M5461",
[AZX_DRIVER_NVIDIA] = "HDA NVidia",
};
/*
* macros for easy use
*/
#define azx_writel(chip,reg,value) \
writel(value, (chip)->remap_addr + ICH6_REG_##reg)
#define azx_readl(chip,reg) \
readl((chip)->remap_addr + ICH6_REG_##reg)
#define azx_writew(chip,reg,value) \
writew(value, (chip)->remap_addr + ICH6_REG_##reg)
#define azx_readw(chip,reg) \
readw((chip)->remap_addr + ICH6_REG_##reg)
#define azx_writeb(chip,reg,value) \
writeb(value, (chip)->remap_addr + ICH6_REG_##reg)
#define azx_readb(chip,reg) \
readb((chip)->remap_addr + ICH6_REG_##reg)
#define azx_sd_writel(dev,reg,value) \
writel(value, (dev)->sd_addr + ICH6_REG_##reg)
#define azx_sd_readl(dev,reg) \
readl((dev)->sd_addr + ICH6_REG_##reg)
#define azx_sd_writew(dev,reg,value) \
writew(value, (dev)->sd_addr + ICH6_REG_##reg)
#define azx_sd_readw(dev,reg) \
readw((dev)->sd_addr + ICH6_REG_##reg)
#define azx_sd_writeb(dev,reg,value) \
writeb(value, (dev)->sd_addr + ICH6_REG_##reg)
#define azx_sd_readb(dev,reg) \
readb((dev)->sd_addr + ICH6_REG_##reg)
/* for pcm support */
#define get_azx_dev(substream) (substream->runtime->private_data)
/* Get the upper 32bit of the given dma_addr_t
* Compiler should optimize and eliminate the code if dma_addr_t is 32bit
*/
#define upper_32bit(addr) (sizeof(addr) > 4 ? (u32)((addr) >> 32) : (u32)0)
static int azx_acquire_irq(struct azx *chip, int do_disconnect);
/*
* Interface for HD codec
*/
/*
* CORB / RIRB interface
*/
static int azx_alloc_cmd_io(struct azx *chip)
{
int err;
/* single page (at least 4096 bytes) must suffice for both ringbuffes */
err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(chip->pci),
PAGE_SIZE, &chip->rb);
if (err < 0) {
snd_printk(KERN_ERR SFX "cannot allocate CORB/RIRB\n");
return err;
}
return 0;
}
static void azx_init_cmd_io(struct azx *chip)
{
/* CORB set up */
chip->corb.addr = chip->rb.addr;
chip->corb.buf = (u32 *)chip->rb.area;
azx_writel(chip, CORBLBASE, (u32)chip->corb.addr);
azx_writel(chip, CORBUBASE, upper_32bit(chip->corb.addr));
/* set the corb size to 256 entries (ULI requires explicitly) */
azx_writeb(chip, CORBSIZE, 0x02);
/* set the corb write pointer to 0 */
azx_writew(chip, CORBWP, 0);
/* reset the corb hw read pointer */
azx_writew(chip, CORBRP, ICH6_RBRWP_CLR);
/* enable corb dma */
azx_writeb(chip, CORBCTL, ICH6_RBCTL_DMA_EN);
/* RIRB set up */
chip->rirb.addr = chip->rb.addr + 2048;
chip->rirb.buf = (u32 *)(chip->rb.area + 2048);
azx_writel(chip, RIRBLBASE, (u32)chip->rirb.addr);
azx_writel(chip, RIRBUBASE, upper_32bit(chip->rirb.addr));
/* set the rirb size to 256 entries (ULI requires explicitly) */
azx_writeb(chip, RIRBSIZE, 0x02);
/* reset the rirb hw write pointer */
azx_writew(chip, RIRBWP, ICH6_RBRWP_CLR);
/* set N=1, get RIRB response interrupt for new entry */
azx_writew(chip, RINTCNT, 1);
/* enable rirb dma and response irq */
azx_writeb(chip, RIRBCTL, ICH6_RBCTL_DMA_EN | ICH6_RBCTL_IRQ_EN);
chip->rirb.rp = chip->rirb.cmds = 0;
}
static void azx_free_cmd_io(struct azx *chip)
{
/* disable ringbuffer DMAs */
azx_writeb(chip, RIRBCTL, 0);
azx_writeb(chip, CORBCTL, 0);
}
/* send a command */
static int azx_corb_send_cmd(struct hda_codec *codec, u32 val)
{
struct azx *chip = codec->bus->private_data;
unsigned int wp;
/* add command to corb */
wp = azx_readb(chip, CORBWP);
wp++;
wp %= ICH6_MAX_CORB_ENTRIES;
spin_lock_irq(&chip->reg_lock);
chip->rirb.cmds++;
chip->corb.buf[wp] = cpu_to_le32(val);
azx_writel(chip, CORBWP, wp);
spin_unlock_irq(&chip->reg_lock);
return 0;
}
#define ICH6_RIRB_EX_UNSOL_EV (1<<4)
/* retrieve RIRB entry - called from interrupt handler */
static void azx_update_rirb(struct azx *chip)
{
unsigned int rp, wp;
u32 res, res_ex;
wp = azx_readb(chip, RIRBWP);
if (wp == chip->rirb.wp)
return;
chip->rirb.wp = wp;
while (chip->rirb.rp != wp) {
chip->rirb.rp++;
chip->rirb.rp %= ICH6_MAX_RIRB_ENTRIES;
rp = chip->rirb.rp << 1; /* an RIRB entry is 8-bytes */
res_ex = le32_to_cpu(chip->rirb.buf[rp + 1]);
res = le32_to_cpu(chip->rirb.buf[rp]);
if (res_ex & ICH6_RIRB_EX_UNSOL_EV)
snd_hda_queue_unsol_event(chip->bus, res, res_ex);
else if (chip->rirb.cmds) {
chip->rirb.res = res;
smp_wmb();
chip->rirb.cmds--;
}
}
}
/* receive a response */
static unsigned int azx_rirb_get_response(struct hda_codec *codec)
{
struct azx *chip = codec->bus->private_data;
unsigned long timeout;
again:
timeout = jiffies + msecs_to_jiffies(1000);
for (;;) {
if (chip->polling_mode) {
spin_lock_irq(&chip->reg_lock);
azx_update_rirb(chip);
spin_unlock_irq(&chip->reg_lock);
}
if (!chip->rirb.cmds) {
smp_rmb();
return chip->rirb.res; /* the last value */
}
if (time_after(jiffies, timeout))
break;
if (codec->bus->needs_damn_long_delay)
msleep(2); /* temporary workaround */
else {
udelay(10);
cond_resched();
}
}
if (chip->msi) {
snd_printk(KERN_WARNING "hda_intel: No response from codec, "
"disabling MSI: last cmd=0x%08x\n", chip->last_cmd);
free_irq(chip->irq, chip);
chip->irq = -1;
pci_disable_msi(chip->pci);
chip->msi = 0;
if (azx_acquire_irq(chip, 1) < 0)
return -1;
goto again;
}
if (!chip->polling_mode) {
snd_printk(KERN_WARNING "hda_intel: azx_get_response timeout, "
"switching to polling mode: last cmd=0x%08x\n",
chip->last_cmd);
chip->polling_mode = 1;
goto again;
}
snd_printk(KERN_ERR "hda_intel: azx_get_response timeout, "
"switching to single_cmd mode: last cmd=0x%08x\n",
chip->last_cmd);
chip->rirb.rp = azx_readb(chip, RIRBWP);
chip->rirb.cmds = 0;
/* switch to single_cmd mode */
chip->single_cmd = 1;
azx_free_cmd_io(chip);
return -1;
}
/*
* Use the single immediate command instead of CORB/RIRB for simplicity
*
* Note: according to Intel, this is not preferred use. The command was
* intended for the BIOS only, and may get confused with unsolicited
* responses. So, we shouldn't use it for normal operation from the
* driver.
* I left the codes, however, for debugging/testing purposes.
*/
/* send a command */
static int azx_single_send_cmd(struct hda_codec *codec, u32 val)
{
struct azx *chip = codec->bus->private_data;
int timeout = 50;
while (timeout--) {
/* check ICB busy bit */
if (!((azx_readw(chip, IRS) & ICH6_IRS_BUSY))) {
/* Clear IRV valid bit */
azx_writew(chip, IRS, azx_readw(chip, IRS) |
ICH6_IRS_VALID);
azx_writel(chip, IC, val);
azx_writew(chip, IRS, azx_readw(chip, IRS) |
ICH6_IRS_BUSY);
return 0;
}
udelay(1);
}
if (printk_ratelimit())
snd_printd(SFX "send_cmd timeout: IRS=0x%x, val=0x%x\n",
azx_readw(chip, IRS), val);
return -EIO;
}
/* receive a response */
static unsigned int azx_single_get_response(struct hda_codec *codec)
{
struct azx *chip = codec->bus->private_data;
int timeout = 50;
while (timeout--) {
/* check IRV busy bit */
if (azx_readw(chip, IRS) & ICH6_IRS_VALID)
return azx_readl(chip, IR);
udelay(1);
}
if (printk_ratelimit())
snd_printd(SFX "get_response timeout: IRS=0x%x\n",
azx_readw(chip, IRS));
return (unsigned int)-1;
}
/*
* The below are the main callbacks from hda_codec.
*
* They are just the skeleton to call sub-callbacks according to the
* current setting of chip->single_cmd.
*/
/* send a command */
static int azx_send_cmd(struct hda_codec *codec, hda_nid_t nid,
int direct, unsigned int verb,
unsigned int para)
{
struct azx *chip = codec->bus->private_data;
u32 val;
val = (u32)(codec->addr & 0x0f) << 28;
val |= (u32)direct << 27;
val |= (u32)nid << 20;
val |= verb << 8;
val |= para;
chip->last_cmd = val;
if (chip->single_cmd)
return azx_single_send_cmd(codec, val);
else
return azx_corb_send_cmd(codec, val);
}
/* get a response */
static unsigned int azx_get_response(struct hda_codec *codec)
{
struct azx *chip = codec->bus->private_data;
if (chip->single_cmd)
return azx_single_get_response(codec);
else
return azx_rirb_get_response(codec);
}
#ifdef CONFIG_SND_HDA_POWER_SAVE
static void azx_power_notify(struct hda_codec *codec);
#endif
/* reset codec link */
static int azx_reset(struct azx *chip)
{
int count;
/* clear STATESTS */
azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
/* reset controller */
azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_RESET);
count = 50;
while (azx_readb(chip, GCTL) && --count)
msleep(1);
/* delay for >= 100us for codec PLL to settle per spec
* Rev 0.9 section 5.5.1
*/
msleep(1);
/* Bring controller out of reset */
azx_writeb(chip, GCTL, azx_readb(chip, GCTL) | ICH6_GCTL_RESET);
count = 50;
while (!azx_readb(chip, GCTL) && --count)
msleep(1);
/* Brent Chartrand said to wait >= 540us for codecs to initialize */
msleep(1);
/* check to see if controller is ready */
if (!azx_readb(chip, GCTL)) {
snd_printd("azx_reset: controller not ready!\n");
return -EBUSY;
}
/* Accept unsolicited responses */
azx_writel(chip, GCTL, azx_readl(chip, GCTL) | ICH6_GCTL_UREN);
/* detect codecs */
if (!chip->codec_mask) {
chip->codec_mask = azx_readw(chip, STATESTS);
snd_printdd("codec_mask = 0x%x\n", chip->codec_mask);
}
return 0;
}
/*
* Lowlevel interface
*/
/* enable interrupts */
static void azx_int_enable(struct azx *chip)
{
/* enable controller CIE and GIE */
azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) |
ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN);
}
/* disable interrupts */
static void azx_int_disable(struct azx *chip)
{
int i;
/* disable interrupts in stream descriptor */
for (i = 0; i < chip->num_streams; i++) {
struct azx_dev *azx_dev = &chip->azx_dev[i];
azx_sd_writeb(azx_dev, SD_CTL,
azx_sd_readb(azx_dev, SD_CTL) & ~SD_INT_MASK);
}
/* disable SIE for all streams */
azx_writeb(chip, INTCTL, 0);
/* disable controller CIE and GIE */
azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) &
~(ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN));
}
/* clear interrupts */
static void azx_int_clear(struct azx *chip)
{
int i;
/* clear stream status */
for (i = 0; i < chip->num_streams; i++) {
struct azx_dev *azx_dev = &chip->azx_dev[i];
azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
}
/* clear STATESTS */
azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
/* clear rirb status */
azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
/* clear int status */
azx_writel(chip, INTSTS, ICH6_INT_CTRL_EN | ICH6_INT_ALL_STREAM);
}
/* start a stream */
static void azx_stream_start(struct azx *chip, struct azx_dev *azx_dev)
{
/* enable SIE */
azx_writeb(chip, INTCTL,
azx_readb(chip, INTCTL) | (1 << azx_dev->index));
/* set DMA start and interrupt mask */
azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
SD_CTL_DMA_START | SD_INT_MASK);
}
/* stop a stream */
static void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev)
{
/* stop DMA */
azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
~(SD_CTL_DMA_START | SD_INT_MASK));
azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK); /* to be sure */
/* disable SIE */
azx_writeb(chip, INTCTL,
azx_readb(chip, INTCTL) & ~(1 << azx_dev->index));
}
/*
* reset and start the controller registers
*/
static void azx_init_chip(struct azx *chip)
{
if (chip->initialized)
return;
/* reset controller */
azx_reset(chip);
/* initialize interrupts */
azx_int_clear(chip);
azx_int_enable(chip);
/* initialize the codec command I/O */
if (!chip->single_cmd)
azx_init_cmd_io(chip);
/* program the position buffer */
azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr);
azx_writel(chip, DPUBASE, upper_32bit(chip->posbuf.addr));
chip->initialized = 1;
}
/*
* initialize the PCI registers
*/
/* update bits in a PCI register byte */
static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
unsigned char mask, unsigned char val)
{
unsigned char data;
pci_read_config_byte(pci, reg, &data);
data &= ~mask;
data |= (val & mask);
pci_write_config_byte(pci, reg, data);
}
static void azx_init_pci(struct azx *chip)
{
unsigned short snoop;
/* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
* TCSEL == Traffic Class Select Register, which sets PCI express QOS
* Ensuring these bits are 0 clears playback static on some HD Audio
* codecs
*/
update_pci_byte(chip->pci, ICH6_PCIREG_TCSEL, 0x07, 0);
switch (chip->driver_type) {
case AZX_DRIVER_ATI:
/* For ATI SB450 azalia HD audio, we need to enable snoop */
update_pci_byte(chip->pci,
ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR,
0x07, ATI_SB450_HDAUDIO_ENABLE_SNOOP);
break;
case AZX_DRIVER_NVIDIA:
/* For NVIDIA HDA, enable snoop */
update_pci_byte(chip->pci,
NVIDIA_HDA_TRANSREG_ADDR,
0x0f, NVIDIA_HDA_ENABLE_COHBITS);
break;
case AZX_DRIVER_SCH:
pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
if (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) {
pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, \
snoop & (~INTEL_SCH_HDA_DEVC_NOSNOOP));
pci_read_config_word(chip->pci,
INTEL_SCH_HDA_DEVC, &snoop);
snd_printdd("HDA snoop disabled, enabling ... %s\n",\
(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) \
? "Failed" : "OK");
}
break;
}
}
static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
/*
* interrupt handler
*/
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 13:55:46 +00:00
static irqreturn_t azx_interrupt(int irq, void *dev_id)
{
struct azx *chip = dev_id;
struct azx_dev *azx_dev;
u32 status;
int i;
spin_lock(&chip->reg_lock);
status = azx_readl(chip, INTSTS);
if (status == 0) {
spin_unlock(&chip->reg_lock);
return IRQ_NONE;
}
for (i = 0; i < chip->num_streams; i++) {
azx_dev = &chip->azx_dev[i];
if (status & azx_dev->sd_int_sta_mask) {
azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
if (!azx_dev->substream || !azx_dev->running)
continue;
/* check whether this IRQ is really acceptable */
if (azx_position_ok(chip, azx_dev)) {
azx_dev->irq_pending = 0;
spin_unlock(&chip->reg_lock);
snd_pcm_period_elapsed(azx_dev->substream);
spin_lock(&chip->reg_lock);
} else {
/* bogus IRQ, process it later */
azx_dev->irq_pending = 1;
schedule_work(&chip->irq_pending_work);
}
}
}
/* clear rirb int */
status = azx_readb(chip, RIRBSTS);
if (status & RIRB_INT_MASK) {
if (!chip->single_cmd && (status & RIRB_INT_RESPONSE))
azx_update_rirb(chip);
azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
}
#if 0
/* clear state status int */
if (azx_readb(chip, STATESTS) & 0x04)
azx_writeb(chip, STATESTS, 0x04);
#endif
spin_unlock(&chip->reg_lock);
return IRQ_HANDLED;
}
/*
* set up BDL entries
*/
static int azx_setup_periods(struct snd_pcm_substream *substream,
struct azx_dev *azx_dev)
{
struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream);
u32 *bdl;
int i, ofs, periods, period_bytes;
/* reset BDL address */
azx_sd_writel(azx_dev, SD_BDLPL, 0);
azx_sd_writel(azx_dev, SD_BDLPU, 0);
period_bytes = snd_pcm_lib_period_bytes(substream);
azx_dev->period_bytes = period_bytes;
periods = azx_dev->bufsize / period_bytes;
/* program the initial BDL entries */
bdl = (u32 *)azx_dev->bdl.area;
ofs = 0;
azx_dev->frags = 0;
for (i = 0; i < periods; i++) {
int size, rest;
if (i >= AZX_MAX_BDL_ENTRIES) {
snd_printk(KERN_ERR "Too many BDL entries: "
"buffer=%d, period=%d\n",
azx_dev->bufsize, period_bytes);
/* reset */
azx_sd_writel(azx_dev, SD_BDLPL, 0);
azx_sd_writel(azx_dev, SD_BDLPU, 0);
return -EINVAL;
}
rest = period_bytes;
do {
dma_addr_t addr = snd_pcm_sgbuf_get_addr(sgbuf, ofs);
/* program the address field of the BDL entry */
bdl[0] = cpu_to_le32((u32)addr);
bdl[1] = cpu_to_le32(upper_32bit(addr));
/* program the size field of the BDL entry */
size = PAGE_SIZE - (ofs % PAGE_SIZE);
if (rest < size)
size = rest;
bdl[2] = cpu_to_le32(size);
/* program the IOC to enable interrupt
* only when the whole fragment is processed
*/
rest -= size;
bdl[3] = rest ? 0 : cpu_to_le32(0x01);
bdl += 4;
azx_dev->frags++;
ofs += size;
} while (rest > 0);
}
return 0;
}
/*
* set up the SD for streaming
*/
static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev)
{
unsigned char val;
int timeout;
/* make sure the run bit is zero for SD */
azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
~SD_CTL_DMA_START);
/* reset stream */
azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
SD_CTL_STREAM_RESET);
udelay(3);
timeout = 300;
while (!((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
--timeout)
;
val &= ~SD_CTL_STREAM_RESET;
azx_sd_writeb(azx_dev, SD_CTL, val);
udelay(3);
timeout = 300;
/* waiting for hardware to report that the stream is out of reset */
while (((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
--timeout)
;
/* program the stream_tag */
azx_sd_writel(azx_dev, SD_CTL,
(azx_sd_readl(azx_dev, SD_CTL) & ~SD_CTL_STREAM_TAG_MASK)|
(azx_dev->stream_tag << SD_CTL_STREAM_TAG_SHIFT));
/* program the length of samples in cyclic buffer */
azx_sd_writel(azx_dev, SD_CBL, azx_dev->bufsize);
/* program the stream format */
/* this value needs to be the same as the one programmed */
azx_sd_writew(azx_dev, SD_FORMAT, azx_dev->format_val);
/* program the stream LVI (last valid index) of the BDL */
azx_sd_writew(azx_dev, SD_LVI, azx_dev->frags - 1);
/* program the BDL address */
/* lower BDL address */
azx_sd_writel(azx_dev, SD_BDLPL, (u32)azx_dev->bdl.addr);
/* upper BDL address */
azx_sd_writel(azx_dev, SD_BDLPU, upper_32bit(azx_dev->bdl.addr));
/* enable the position buffer */
if (chip->position_fix == POS_FIX_POSBUF ||
chip->position_fix == POS_FIX_AUTO) {
if (!(azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE))
azx_writel(chip, DPLBASE,
(u32)chip->posbuf.addr | ICH6_DPLBASE_ENABLE);
}
/* set the interrupt enable bits in the descriptor control register */
azx_sd_writel(azx_dev, SD_CTL,
azx_sd_readl(azx_dev, SD_CTL) | SD_INT_MASK);
return 0;
}
/*
* Codec initialization
*/
static unsigned int azx_max_codecs[] __devinitdata = {
[AZX_DRIVER_ICH] = 3,
[AZX_DRIVER_SCH] = 3,
[AZX_DRIVER_ATI] = 4,
[AZX_DRIVER_ATIHDMI] = 4,
[AZX_DRIVER_VIA] = 3, /* FIXME: correct? */
[AZX_DRIVER_SIS] = 3, /* FIXME: correct? */
[AZX_DRIVER_ULI] = 3, /* FIXME: correct? */
[AZX_DRIVER_NVIDIA] = 3, /* FIXME: correct? */
};
static int __devinit azx_codec_create(struct azx *chip, const char *model,
unsigned int codec_probe_mask)
{
struct hda_bus_template bus_temp;
int c, codecs, audio_codecs, err;
memset(&bus_temp, 0, sizeof(bus_temp));
bus_temp.private_data = chip;
bus_temp.modelname = model;
bus_temp.pci = chip->pci;
bus_temp.ops.command = azx_send_cmd;
bus_temp.ops.get_response = azx_get_response;
#ifdef CONFIG_SND_HDA_POWER_SAVE
bus_temp.ops.pm_notify = azx_power_notify;
#endif
err = snd_hda_bus_new(chip->card, &bus_temp, &chip->bus);
if (err < 0)
return err;
codecs = audio_codecs = 0;
for (c = 0; c < AZX_MAX_CODECS; c++) {
if ((chip->codec_mask & (1 << c)) & codec_probe_mask) {
struct hda_codec *codec;
err = snd_hda_codec_new(chip->bus, c, &codec);
if (err < 0)
continue;
codecs++;
if (codec->afg)
audio_codecs++;
}
}
if (!audio_codecs) {
/* probe additional slots if no codec is found */
for (; c < azx_max_codecs[chip->driver_type]; c++) {
if ((chip->codec_mask & (1 << c)) & codec_probe_mask) {
err = snd_hda_codec_new(chip->bus, c, NULL);
if (err < 0)
continue;
codecs++;
}
}
}
if (!codecs) {
snd_printk(KERN_ERR SFX "no codecs initialized\n");
return -ENXIO;
}
return 0;
}
/*
* PCM support
*/
/* assign a stream for the PCM */
static inline struct azx_dev *azx_assign_device(struct azx *chip, int stream)
{
int dev, i, nums;
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
dev = chip->playback_index_offset;
nums = chip->playback_streams;
} else {
dev = chip->capture_index_offset;
nums = chip->capture_streams;
}
for (i = 0; i < nums; i++, dev++)
if (!chip->azx_dev[dev].opened) {
chip->azx_dev[dev].opened = 1;
return &chip->azx_dev[dev];
}
return NULL;
}
/* release the assigned stream */
static inline void azx_release_device(struct azx_dev *azx_dev)
{
azx_dev->opened = 0;
}
static struct snd_pcm_hardware azx_pcm_hw = {
.info = (SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP_VALID |
/* No full-resume yet implemented */
/* SNDRV_PCM_INFO_RESUME |*/
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_SYNC_START),
.formats = SNDRV_PCM_FMTBIT_S16_LE,
.rates = SNDRV_PCM_RATE_48000,
.rate_min = 48000,
.rate_max = 48000,
.channels_min = 2,
.channels_max = 2,
.buffer_bytes_max = AZX_MAX_BUF_SIZE,
.period_bytes_min = 128,
.period_bytes_max = AZX_MAX_BUF_SIZE / 2,
.periods_min = 2,
.periods_max = AZX_MAX_FRAG,
.fifo_size = 0,
};
struct azx_pcm {
struct azx *chip;
struct hda_codec *codec;
struct hda_pcm_stream *hinfo[2];
};
static int azx_pcm_open(struct snd_pcm_substream *substream)
{
struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
struct azx *chip = apcm->chip;
struct azx_dev *azx_dev;
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned long flags;
int err;
mutex_lock(&chip->open_mutex);
azx_dev = azx_assign_device(chip, substream->stream);
if (azx_dev == NULL) {
mutex_unlock(&chip->open_mutex);
return -EBUSY;
}
runtime->hw = azx_pcm_hw;
runtime->hw.channels_min = hinfo->channels_min;
runtime->hw.channels_max = hinfo->channels_max;
runtime->hw.formats = hinfo->formats;
runtime->hw.rates = hinfo->rates;
snd_pcm_limit_hw_rates(runtime);
snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
128);
snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
128);
snd_hda_power_up(apcm->codec);
err = hinfo->ops.open(hinfo, apcm->codec, substream);
if (err < 0) {
azx_release_device(azx_dev);
snd_hda_power_down(apcm->codec);
mutex_unlock(&chip->open_mutex);
return err;
}
spin_lock_irqsave(&chip->reg_lock, flags);
azx_dev->substream = substream;
azx_dev->running = 0;
spin_unlock_irqrestore(&chip->reg_lock, flags);
runtime->private_data = azx_dev;
snd_pcm_set_sync(substream);
mutex_unlock(&chip->open_mutex);
return 0;
}
static int azx_pcm_close(struct snd_pcm_substream *substream)
{
struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
struct azx *chip = apcm->chip;
struct azx_dev *azx_dev = get_azx_dev(substream);
unsigned long flags;
mutex_lock(&chip->open_mutex);
spin_lock_irqsave(&chip->reg_lock, flags);
azx_dev->substream = NULL;
azx_dev->running = 0;
spin_unlock_irqrestore(&chip->reg_lock, flags);
azx_release_device(azx_dev);
hinfo->ops.close(hinfo, apcm->codec, substream);
snd_hda_power_down(apcm->codec);
mutex_unlock(&chip->open_mutex);
return 0;
}
static int azx_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
return snd_pcm_lib_malloc_pages(substream,
params_buffer_bytes(hw_params));
}
static int azx_pcm_hw_free(struct snd_pcm_substream *substream)
{
struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
struct azx_dev *azx_dev = get_azx_dev(substream);
struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
/* reset BDL address */
azx_sd_writel(azx_dev, SD_BDLPL, 0);
azx_sd_writel(azx_dev, SD_BDLPU, 0);
azx_sd_writel(azx_dev, SD_CTL, 0);
hinfo->ops.cleanup(hinfo, apcm->codec, substream);
return snd_pcm_lib_free_pages(substream);
}
static int azx_pcm_prepare(struct snd_pcm_substream *substream)
{
struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
struct azx *chip = apcm->chip;
struct azx_dev *azx_dev = get_azx_dev(substream);
struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
struct snd_pcm_runtime *runtime = substream->runtime;
azx_dev->bufsize = snd_pcm_lib_buffer_bytes(substream);
azx_dev->format_val = snd_hda_calc_stream_format(runtime->rate,
runtime->channels,
runtime->format,
hinfo->maxbps);
if (!azx_dev->format_val) {
snd_printk(KERN_ERR SFX
"invalid format_val, rate=%d, ch=%d, format=%d\n",
runtime->rate, runtime->channels, runtime->format);
return -EINVAL;
}
snd_printdd("azx_pcm_prepare: bufsize=0x%x, format=0x%x\n",
azx_dev->bufsize, azx_dev->format_val);
if (azx_setup_periods(substream, azx_dev) < 0)
return -EINVAL;
azx_setup_controller(chip, azx_dev);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
azx_dev->fifo_size = azx_sd_readw(azx_dev, SD_FIFOSIZE) + 1;
else
azx_dev->fifo_size = 0;
return hinfo->ops.prepare(hinfo, apcm->codec, azx_dev->stream_tag,
azx_dev->format_val, substream);
}
static int azx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
{
struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
struct azx *chip = apcm->chip;
struct azx_dev *azx_dev;
struct snd_pcm_substream *s;
int start, nsync = 0, sbits = 0;
int nwait, timeout;
switch (cmd) {
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_START:
start = 1;
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_STOP:
start = 0;
break;
default:
return -EINVAL;
}
snd_pcm_group_for_each_entry(s, substream) {
if (s->pcm->card != substream->pcm->card)
continue;
azx_dev = get_azx_dev(s);
sbits |= 1 << azx_dev->index;
nsync++;
snd_pcm_trigger_done(s, substream);
}
spin_lock(&chip->reg_lock);
if (nsync > 1) {
/* first, set SYNC bits of corresponding streams */
azx_writel(chip, SYNC, azx_readl(chip, SYNC) | sbits);
}
snd_pcm_group_for_each_entry(s, substream) {
if (s->pcm->card != substream->pcm->card)
continue;
azx_dev = get_azx_dev(s);
if (start)
azx_stream_start(chip, azx_dev);
else
azx_stream_stop(chip, azx_dev);
azx_dev->running = start;
}
spin_unlock(&chip->reg_lock);
if (start) {
if (nsync == 1)
return 0;
/* wait until all FIFOs get ready */
for (timeout = 5000; timeout; timeout--) {
nwait = 0;
snd_pcm_group_for_each_entry(s, substream) {
if (s->pcm->card != substream->pcm->card)
continue;
azx_dev = get_azx_dev(s);
if (!(azx_sd_readb(azx_dev, SD_STS) &
SD_STS_FIFO_READY))
nwait++;
}
if (!nwait)
break;
cpu_relax();
}
} else {
/* wait until all RUN bits are cleared */
for (timeout = 5000; timeout; timeout--) {
nwait = 0;
snd_pcm_group_for_each_entry(s, substream) {
if (s->pcm->card != substream->pcm->card)
continue;
azx_dev = get_azx_dev(s);
if (azx_sd_readb(azx_dev, SD_CTL) &
SD_CTL_DMA_START)
nwait++;
}
if (!nwait)
break;
cpu_relax();
}
}
if (nsync > 1) {
spin_lock(&chip->reg_lock);
/* reset SYNC bits */
azx_writel(chip, SYNC, azx_readl(chip, SYNC) & ~sbits);
spin_unlock(&chip->reg_lock);
}
return 0;
}
static unsigned int azx_get_position(struct azx *chip,
struct azx_dev *azx_dev)
{
unsigned int pos;
if (chip->position_fix == POS_FIX_POSBUF ||
chip->position_fix == POS_FIX_AUTO) {
/* use the position buffer */
pos = le32_to_cpu(*azx_dev->posbuf);
} else {
/* read LPIB */
pos = azx_sd_readl(azx_dev, SD_LPIB);
if (chip->position_fix == POS_FIX_FIFO)
pos += azx_dev->fifo_size;
}
if (pos >= azx_dev->bufsize)
pos = 0;
return pos;
}
static snd_pcm_uframes_t azx_pcm_pointer(struct snd_pcm_substream *substream)
{
struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
struct azx *chip = apcm->chip;
struct azx_dev *azx_dev = get_azx_dev(substream);
return bytes_to_frames(substream->runtime,
azx_get_position(chip, azx_dev));
}
/*
* Check whether the current DMA position is acceptable for updating
* periods. Returns non-zero if it's OK.
*
* Many HD-audio controllers appear pretty inaccurate about
* the update-IRQ timing. The IRQ is issued before actually the
* data is processed. So, we need to process it afterwords in a
* workqueue.
*/
static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
{
unsigned int pos;
pos = azx_get_position(chip, azx_dev);
if (chip->position_fix == POS_FIX_AUTO) {
if (!pos) {
printk(KERN_WARNING
"hda-intel: Invalid position buffer, "
"using LPIB read method instead.\n");
chip->position_fix = POS_FIX_NONE;
pos = azx_get_position(chip, azx_dev);
} else
chip->position_fix = POS_FIX_POSBUF;
}
if (pos % azx_dev->period_bytes > azx_dev->period_bytes / 2)
return 0; /* NG - it's below the period boundary */
return 1; /* OK, it's fine */
}
/*
* The work for pending PCM period updates.
*/
static void azx_irq_pending_work(struct work_struct *work)
{
struct azx *chip = container_of(work, struct azx, irq_pending_work);
int i, pending;
for (;;) {
pending = 0;
spin_lock_irq(&chip->reg_lock);
for (i = 0; i < chip->num_streams; i++) {
struct azx_dev *azx_dev = &chip->azx_dev[i];
if (!azx_dev->irq_pending ||
!azx_dev->substream ||
!azx_dev->running)
continue;
if (azx_position_ok(chip, azx_dev)) {
azx_dev->irq_pending = 0;
spin_unlock(&chip->reg_lock);
snd_pcm_period_elapsed(azx_dev->substream);
spin_lock(&chip->reg_lock);
} else
pending++;
}
spin_unlock_irq(&chip->reg_lock);
if (!pending)
return;
cond_resched();
}
}
/* clear irq_pending flags and assure no on-going workq */
static void azx_clear_irq_pending(struct azx *chip)
{
int i;
spin_lock_irq(&chip->reg_lock);
for (i = 0; i < chip->num_streams; i++)
chip->azx_dev[i].irq_pending = 0;
spin_unlock_irq(&chip->reg_lock);
flush_scheduled_work();
}
static struct snd_pcm_ops azx_pcm_ops = {
.open = azx_pcm_open,
.close = azx_pcm_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = azx_pcm_hw_params,
.hw_free = azx_pcm_hw_free,
.prepare = azx_pcm_prepare,
.trigger = azx_pcm_trigger,
.pointer = azx_pcm_pointer,
.page = snd_pcm_sgbuf_ops_page,
};
static void azx_pcm_free(struct snd_pcm *pcm)
{
kfree(pcm->private_data);
}
static int __devinit create_codec_pcm(struct azx *chip, struct hda_codec *codec,
struct hda_pcm *cpcm)
{
int err;
struct snd_pcm *pcm;
struct azx_pcm *apcm;
/* if no substreams are defined for both playback and capture,
* it's just a placeholder. ignore it.
*/
if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
return 0;
snd_assert(cpcm->name, return -EINVAL);
err = snd_pcm_new(chip->card, cpcm->name, cpcm->device,
cpcm->stream[0].substreams,
cpcm->stream[1].substreams,
&pcm);
if (err < 0)
return err;
strcpy(pcm->name, cpcm->name);
apcm = kmalloc(sizeof(*apcm), GFP_KERNEL);
if (apcm == NULL)
return -ENOMEM;
apcm->chip = chip;
apcm->codec = codec;
apcm->hinfo[0] = &cpcm->stream[0];
apcm->hinfo[1] = &cpcm->stream[1];
pcm->private_data = apcm;
pcm->private_free = azx_pcm_free;
if (cpcm->stream[0].substreams)
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &azx_pcm_ops);
if (cpcm->stream[1].substreams)
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &azx_pcm_ops);
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
snd_dma_pci_data(chip->pci),
1024 * 64, 1024 * 1024);
chip->pcm[cpcm->device] = pcm;
return 0;
}
static int __devinit azx_pcm_create(struct azx *chip)
{
static const char *dev_name[HDA_PCM_NTYPES] = {
"Audio", "SPDIF", "HDMI", "Modem"
};
/* starting device index for each PCM type */
static int dev_idx[HDA_PCM_NTYPES] = {
[HDA_PCM_TYPE_AUDIO] = 0,
[HDA_PCM_TYPE_SPDIF] = 1,
[HDA_PCM_TYPE_HDMI] = 3,
[HDA_PCM_TYPE_MODEM] = 6
};
/* normal audio device indices; not linear to keep compatibility */
static int audio_idx[4] = { 0, 2, 4, 5 };
struct hda_codec *codec;
int c, err;
int num_devs[HDA_PCM_NTYPES];
err = snd_hda_build_pcms(chip->bus);
if (err < 0)
return err;
/* create audio PCMs */
memset(num_devs, 0, sizeof(num_devs));
list_for_each_entry(codec, &chip->bus->codec_list, list) {
for (c = 0; c < codec->num_pcms; c++) {
struct hda_pcm *cpcm = &codec->pcm_info[c];
int type = cpcm->pcm_type;
switch (type) {
case HDA_PCM_TYPE_AUDIO:
if (num_devs[type] >= ARRAY_SIZE(audio_idx)) {
snd_printk(KERN_WARNING
"Too many audio devices\n");
continue;
}
cpcm->device = audio_idx[num_devs[type]];
break;
case HDA_PCM_TYPE_SPDIF:
case HDA_PCM_TYPE_HDMI:
case HDA_PCM_TYPE_MODEM:
if (num_devs[type]) {
snd_printk(KERN_WARNING
"%s already defined\n",
dev_name[type]);
continue;
}
cpcm->device = dev_idx[type];
break;
default:
snd_printk(KERN_WARNING
"Invalid PCM type %d\n", type);
continue;
}
num_devs[type]++;
err = create_codec_pcm(chip, codec, cpcm);
if (err < 0)
return err;
}
}
return 0;
}
/*
* mixer creation - all stuff is implemented in hda module
*/
static int __devinit azx_mixer_create(struct azx *chip)
{
return snd_hda_build_controls(chip->bus);
}
/*
* initialize SD streams
*/
static int __devinit azx_init_stream(struct azx *chip)
{
int i;
/* initialize each stream (aka device)
* assign the starting bdl address to each stream (device)
* and initialize
*/
for (i = 0; i < chip->num_streams; i++) {
struct azx_dev *azx_dev = &chip->azx_dev[i];
azx_dev->posbuf = (u32 __iomem *)(chip->posbuf.area + i * 8);
/* offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
azx_dev->sd_addr = chip->remap_addr + (0x20 * i + 0x80);
/* int mask: SDI0=0x01, SDI1=0x02, ... SDO3=0x80 */
azx_dev->sd_int_sta_mask = 1 << i;
/* stream tag: must be non-zero and unique */
azx_dev->index = i;
azx_dev->stream_tag = i + 1;
}
return 0;
}
static int azx_acquire_irq(struct azx *chip, int do_disconnect)
{
if (request_irq(chip->pci->irq, azx_interrupt,
chip->msi ? 0 : IRQF_SHARED,
"HDA Intel", chip)) {
printk(KERN_ERR "hda-intel: unable to grab IRQ %d, "
"disabling device\n", chip->pci->irq);
if (do_disconnect)
snd_card_disconnect(chip->card);
return -1;
}
chip->irq = chip->pci->irq;
pci_intx(chip->pci, !chip->msi);
return 0;
}
static void azx_stop_chip(struct azx *chip)
{
if (!chip->initialized)
return;
/* disable interrupts */
azx_int_disable(chip);
azx_int_clear(chip);
/* disable CORB/RIRB */
azx_free_cmd_io(chip);
/* disable position buffer */
azx_writel(chip, DPLBASE, 0);
azx_writel(chip, DPUBASE, 0);
chip->initialized = 0;
}
#ifdef CONFIG_SND_HDA_POWER_SAVE
/* power-up/down the controller */
static void azx_power_notify(struct hda_codec *codec)
{
struct azx *chip = codec->bus->private_data;
struct hda_codec *c;
int power_on = 0;
list_for_each_entry(c, &codec->bus->codec_list, list) {
if (c->power_on) {
power_on = 1;
break;
}
}
if (power_on)
azx_init_chip(chip);
else if (chip->running && power_save_controller)
azx_stop_chip(chip);
}
#endif /* CONFIG_SND_HDA_POWER_SAVE */
#ifdef CONFIG_PM
/*
* power management
*/
static int azx_suspend(struct pci_dev *pci, pm_message_t state)
{
struct snd_card *card = pci_get_drvdata(pci);
struct azx *chip = card->private_data;
int i;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
azx_clear_irq_pending(chip);
for (i = 0; i < AZX_MAX_PCMS; i++)
snd_pcm_suspend_all(chip->pcm[i]);
if (chip->initialized)
snd_hda_suspend(chip->bus, state);
azx_stop_chip(chip);
if (chip->irq >= 0) {
free_irq(chip->irq, chip);
chip->irq = -1;
}
if (chip->msi)
pci_disable_msi(chip->pci);
pci_disable_device(pci);
pci_save_state(pci);
pci_set_power_state(pci, pci_choose_state(pci, state));
return 0;
}
static int azx_resume(struct pci_dev *pci)
{
struct snd_card *card = pci_get_drvdata(pci);
struct azx *chip = card->private_data;
pci_set_power_state(pci, PCI_D0);
pci_restore_state(pci);
if (pci_enable_device(pci) < 0) {
printk(KERN_ERR "hda-intel: pci_enable_device failed, "
"disabling device\n");
snd_card_disconnect(card);
return -EIO;
}
pci_set_master(pci);
if (chip->msi)
if (pci_enable_msi(pci) < 0)
chip->msi = 0;
if (azx_acquire_irq(chip, 1) < 0)
return -EIO;
azx_init_pci(chip);
if (snd_hda_codecs_inuse(chip->bus))
azx_init_chip(chip);
snd_hda_resume(chip->bus);
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
#endif /* CONFIG_PM */
/*
* destructor
*/
static int azx_free(struct azx *chip)
{
int i;
if (chip->initialized) {
azx_clear_irq_pending(chip);
for (i = 0; i < chip->num_streams; i++)
azx_stream_stop(chip, &chip->azx_dev[i]);
azx_stop_chip(chip);
}
if (chip->irq >= 0)
free_irq(chip->irq, (void*)chip);
if (chip->msi)
pci_disable_msi(chip->pci);
if (chip->remap_addr)
iounmap(chip->remap_addr);
if (chip->azx_dev) {
for (i = 0; i < chip->num_streams; i++)
if (chip->azx_dev[i].bdl.area)
snd_dma_free_pages(&chip->azx_dev[i].bdl);
}
if (chip->rb.area)
snd_dma_free_pages(&chip->rb);
if (chip->posbuf.area)
snd_dma_free_pages(&chip->posbuf);
pci_release_regions(chip->pci);
pci_disable_device(chip->pci);
kfree(chip->azx_dev);
kfree(chip);
return 0;
}
static int azx_dev_free(struct snd_device *device)
{
return azx_free(device->device_data);
}
/*
* white/black-listing for position_fix
*/
static struct snd_pci_quirk position_fix_list[] __devinitdata = {
SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_NONE),
SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_NONE),
SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_NONE),
{}
};
static int __devinit check_position_fix(struct azx *chip, int fix)
{
const struct snd_pci_quirk *q;
if (fix == POS_FIX_AUTO) {
q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
if (q) {
printk(KERN_INFO
"hda_intel: position_fix set to %d "
"for device %04x:%04x\n",
q->value, q->subvendor, q->subdevice);
return q->value;
}
}
return fix;
}
/*
* black-lists for probe_mask
*/
static struct snd_pci_quirk probe_mask_list[] __devinitdata = {
/* Thinkpad often breaks the controller communication when accessing
* to the non-working (or non-existing) modem codec slot.
*/
SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
{}
};
static void __devinit check_probe_mask(struct azx *chip, int dev)
{
const struct snd_pci_quirk *q;
if (probe_mask[dev] == -1) {
q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
if (q) {
printk(KERN_INFO
"hda_intel: probe_mask set to 0x%x "
"for device %04x:%04x\n",
q->value, q->subvendor, q->subdevice);
probe_mask[dev] = q->value;
}
}
}
/*
* constructor
*/
static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
int dev, int driver_type,
struct azx **rchip)
{
struct azx *chip;
int i, err;
unsigned short gcap;
static struct snd_device_ops ops = {
.dev_free = azx_dev_free,
};
*rchip = NULL;
err = pci_enable_device(pci);
if (err < 0)
return err;
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
if (!chip) {
snd_printk(KERN_ERR SFX "cannot allocate chip\n");
pci_disable_device(pci);
return -ENOMEM;
}
spin_lock_init(&chip->reg_lock);
mutex_init(&chip->open_mutex);
chip->card = card;
chip->pci = pci;
chip->irq = -1;
chip->driver_type = driver_type;
chip->msi = enable_msi;
INIT_WORK(&chip->irq_pending_work, azx_irq_pending_work);
chip->position_fix = check_position_fix(chip, position_fix[dev]);
check_probe_mask(chip, dev);
chip->single_cmd = single_cmd;
#if BITS_PER_LONG != 64
/* Fix up base address on ULI M5461 */
if (chip->driver_type == AZX_DRIVER_ULI) {
u16 tmp3;
pci_read_config_word(pci, 0x40, &tmp3);
pci_write_config_word(pci, 0x40, tmp3 | 0x10);
pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
}
#endif
err = pci_request_regions(pci, "ICH HD audio");
if (err < 0) {
kfree(chip);
pci_disable_device(pci);
return err;
}
chip->addr = pci_resource_start(pci, 0);
chip->remap_addr = ioremap_nocache(chip->addr, pci_resource_len(pci,0));
if (chip->remap_addr == NULL) {
snd_printk(KERN_ERR SFX "ioremap error\n");
err = -ENXIO;
goto errout;
}
if (chip->msi)
if (pci_enable_msi(pci) < 0)
chip->msi = 0;
if (azx_acquire_irq(chip, 0) < 0) {
err = -EBUSY;
goto errout;
}
pci_set_master(pci);
synchronize_irq(chip->irq);
gcap = azx_readw(chip, GCAP);
snd_printdd("chipset global capabilities = 0x%x\n", gcap);
/* allow 64bit DMA address if supported by H/W */
if ((gcap & 0x01) && !pci_set_dma_mask(pci, DMA_64BIT_MASK))
pci_set_consistent_dma_mask(pci, DMA_64BIT_MASK);
/* read number of streams from GCAP register instead of using
* hardcoded value
*/
chip->capture_streams = (gcap >> 8) & 0x0f;
chip->playback_streams = (gcap >> 12) & 0x0f;
if (!chip->playback_streams && !chip->capture_streams) {
/* gcap didn't give any info, switching to old method */
switch (chip->driver_type) {
case AZX_DRIVER_ULI:
chip->playback_streams = ULI_NUM_PLAYBACK;
chip->capture_streams = ULI_NUM_CAPTURE;
break;
case AZX_DRIVER_ATIHDMI:
chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
chip->capture_streams = ATIHDMI_NUM_CAPTURE;
break;
default:
chip->playback_streams = ICH6_NUM_PLAYBACK;
chip->capture_streams = ICH6_NUM_CAPTURE;
break;
}
}
chip->capture_index_offset = 0;
chip->playback_index_offset = chip->capture_streams;
chip->num_streams = chip->playback_streams + chip->capture_streams;
chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev),
GFP_KERNEL);
if (!chip->azx_dev) {
snd_printk(KERN_ERR "cannot malloc azx_dev\n");
goto errout;
}
for (i = 0; i < chip->num_streams; i++) {
/* allocate memory for the BDL for each stream */
err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(chip->pci),
BDL_SIZE, &chip->azx_dev[i].bdl);
if (err < 0) {
snd_printk(KERN_ERR SFX "cannot allocate BDL\n");
goto errout;
}
}
/* allocate memory for the position buffer */
err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(chip->pci),
chip->num_streams * 8, &chip->posbuf);
if (err < 0) {
snd_printk(KERN_ERR SFX "cannot allocate posbuf\n");
goto errout;
}
/* allocate CORB/RIRB */
if (!chip->single_cmd) {
err = azx_alloc_cmd_io(chip);
if (err < 0)
goto errout;
}
/* initialize streams */
azx_init_stream(chip);
/* initialize chip */
azx_init_pci(chip);
azx_init_chip(chip);
/* codec detection */
if (!chip->codec_mask) {
snd_printk(KERN_ERR SFX "no codecs found!\n");
err = -ENODEV;
goto errout;
}
err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
if (err <0) {
snd_printk(KERN_ERR SFX "Error creating device [card]!\n");
goto errout;
}
strcpy(card->driver, "HDA-Intel");
strcpy(card->shortname, driver_short_names[chip->driver_type]);
sprintf(card->longname, "%s at 0x%lx irq %i",
card->shortname, chip->addr, chip->irq);
*rchip = chip;
return 0;
errout:
azx_free(chip);
return err;
}
static void power_down_all_codecs(struct azx *chip)
{
#ifdef CONFIG_SND_HDA_POWER_SAVE
/* The codecs were powered up in snd_hda_codec_new().
* Now all initialization done, so turn them down if possible
*/
struct hda_codec *codec;
list_for_each_entry(codec, &chip->bus->codec_list, list) {
snd_hda_power_down(codec);
}
#endif
}
static int __devinit azx_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
static int dev;
struct snd_card *card;
struct azx *chip;
int err;
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) {
snd_printk(KERN_ERR SFX "Error creating card!\n");
return -ENOMEM;
}
err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
if (err < 0) {
snd_card_free(card);
return err;
}
card->private_data = chip;
/* create codec instances */
err = azx_codec_create(chip, model[dev], probe_mask[dev]);
if (err < 0) {
snd_card_free(card);
return err;
}
/* create PCM streams */
err = azx_pcm_create(chip);
if (err < 0) {
snd_card_free(card);
return err;
}
/* create mixer controls */
err = azx_mixer_create(chip);
if (err < 0) {
snd_card_free(card);
return err;
}
snd_card_set_dev(card, &pci->dev);
err = snd_card_register(card);
if (err < 0) {
snd_card_free(card);
return err;
}
pci_set_drvdata(pci, card);
chip->running = 1;
power_down_all_codecs(chip);
dev++;
return err;
}
static void __devexit azx_remove(struct pci_dev *pci)
{
snd_card_free(pci_get_drvdata(pci));
pci_set_drvdata(pci, NULL);
}
/* PCI IDs */
static struct pci_device_id azx_ids[] = {
/* ICH 6..10 */
{ PCI_DEVICE(0x8086, 0x2668), .driver_data = AZX_DRIVER_ICH },
{ PCI_DEVICE(0x8086, 0x27d8), .driver_data = AZX_DRIVER_ICH },
{ PCI_DEVICE(0x8086, 0x269a), .driver_data = AZX_DRIVER_ICH },
{ PCI_DEVICE(0x8086, 0x284b), .driver_data = AZX_DRIVER_ICH },
{ PCI_DEVICE(0x8086, 0x293e), .driver_data = AZX_DRIVER_ICH },
{ PCI_DEVICE(0x8086, 0x293f), .driver_data = AZX_DRIVER_ICH },
{ PCI_DEVICE(0x8086, 0x3a3e), .driver_data = AZX_DRIVER_ICH },
{ PCI_DEVICE(0x8086, 0x3a6e), .driver_data = AZX_DRIVER_ICH },
/* SCH */
{ PCI_DEVICE(0x8086, 0x811b), .driver_data = AZX_DRIVER_SCH },
/* ATI SB 450/600 */
{ PCI_DEVICE(0x1002, 0x437b), .driver_data = AZX_DRIVER_ATI },
{ PCI_DEVICE(0x1002, 0x4383), .driver_data = AZX_DRIVER_ATI },
/* ATI HDMI */
{ PCI_DEVICE(0x1002, 0x793b), .driver_data = AZX_DRIVER_ATIHDMI },
{ PCI_DEVICE(0x1002, 0x7919), .driver_data = AZX_DRIVER_ATIHDMI },
{ PCI_DEVICE(0x1002, 0x960f), .driver_data = AZX_DRIVER_ATIHDMI },
{ PCI_DEVICE(0x1002, 0xaa00), .driver_data = AZX_DRIVER_ATIHDMI },
{ PCI_DEVICE(0x1002, 0xaa08), .driver_data = AZX_DRIVER_ATIHDMI },
{ PCI_DEVICE(0x1002, 0xaa10), .driver_data = AZX_DRIVER_ATIHDMI },
{ PCI_DEVICE(0x1002, 0xaa18), .driver_data = AZX_DRIVER_ATIHDMI },
{ PCI_DEVICE(0x1002, 0xaa20), .driver_data = AZX_DRIVER_ATIHDMI },
{ PCI_DEVICE(0x1002, 0xaa28), .driver_data = AZX_DRIVER_ATIHDMI },
{ PCI_DEVICE(0x1002, 0xaa30), .driver_data = AZX_DRIVER_ATIHDMI },
{ PCI_DEVICE(0x1002, 0xaa38), .driver_data = AZX_DRIVER_ATIHDMI },
{ PCI_DEVICE(0x1002, 0xaa40), .driver_data = AZX_DRIVER_ATIHDMI },
{ PCI_DEVICE(0x1002, 0xaa48), .driver_data = AZX_DRIVER_ATIHDMI },
/* VIA VT8251/VT8237A */
{ PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
/* SIS966 */
{ PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
/* ULI M5461 */
{ PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
/* NVIDIA MCP */
{ PCI_DEVICE(0x10de, 0x026c), .driver_data = AZX_DRIVER_NVIDIA },
{ PCI_DEVICE(0x10de, 0x0371), .driver_data = AZX_DRIVER_NVIDIA },
{ PCI_DEVICE(0x10de, 0x03e4), .driver_data = AZX_DRIVER_NVIDIA },
{ PCI_DEVICE(0x10de, 0x03f0), .driver_data = AZX_DRIVER_NVIDIA },
{ PCI_DEVICE(0x10de, 0x044a), .driver_data = AZX_DRIVER_NVIDIA },
{ PCI_DEVICE(0x10de, 0x044b), .driver_data = AZX_DRIVER_NVIDIA },
{ PCI_DEVICE(0x10de, 0x055c), .driver_data = AZX_DRIVER_NVIDIA },
{ PCI_DEVICE(0x10de, 0x055d), .driver_data = AZX_DRIVER_NVIDIA },
{ PCI_DEVICE(0x10de, 0x0774), .driver_data = AZX_DRIVER_NVIDIA },
{ PCI_DEVICE(0x10de, 0x0775), .driver_data = AZX_DRIVER_NVIDIA },
{ PCI_DEVICE(0x10de, 0x0776), .driver_data = AZX_DRIVER_NVIDIA },
{ PCI_DEVICE(0x10de, 0x0777), .driver_data = AZX_DRIVER_NVIDIA },
{ PCI_DEVICE(0x10de, 0x07fc), .driver_data = AZX_DRIVER_NVIDIA },
{ PCI_DEVICE(0x10de, 0x07fd), .driver_data = AZX_DRIVER_NVIDIA },
{ PCI_DEVICE(0x10de, 0x0ac0), .driver_data = AZX_DRIVER_NVIDIA },
{ PCI_DEVICE(0x10de, 0x0ac1), .driver_data = AZX_DRIVER_NVIDIA },
{ PCI_DEVICE(0x10de, 0x0ac2), .driver_data = AZX_DRIVER_NVIDIA },
{ PCI_DEVICE(0x10de, 0x0ac3), .driver_data = AZX_DRIVER_NVIDIA },
{ PCI_DEVICE(0x10de, 0x0bd4), .driver_data = AZX_DRIVER_NVIDIA },
{ PCI_DEVICE(0x10de, 0x0bd5), .driver_data = AZX_DRIVER_NVIDIA },
{ PCI_DEVICE(0x10de, 0x0bd6), .driver_data = AZX_DRIVER_NVIDIA },
{ PCI_DEVICE(0x10de, 0x0bd7), .driver_data = AZX_DRIVER_NVIDIA },
{ 0, }
};
MODULE_DEVICE_TABLE(pci, azx_ids);
/* pci_driver definition */
static struct pci_driver driver = {
.name = "HDA Intel",
.id_table = azx_ids,
.probe = azx_probe,
.remove = __devexit_p(azx_remove),
#ifdef CONFIG_PM
.suspend = azx_suspend,
.resume = azx_resume,
#endif
};
static int __init alsa_card_azx_init(void)
{
return pci_register_driver(&driver);
}
static void __exit alsa_card_azx_exit(void)
{
pci_unregister_driver(&driver);
}
module_init(alsa_card_azx_init)
module_exit(alsa_card_azx_exit)