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提交 8ab418d3 编写于 作者: T Takashi Iwai
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Merge branch 'topic/hda' into for-4.2

上级 782e50e0 0dd76f36
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Showing with 2457 addition and 1928 deletion
include/sound/hda_register.h 0 → 100644
浏览文件 @ 8ab418d3
/*
* HD-audio controller (Azalia) registers and helpers
*
* For traditional reasons, we still use azx_ prefix here
*/
#ifndef __SOUND_HDA_REGISTER_H
#define __SOUND_HDA_REGISTER_H
#include <linux/io.h>
#include <sound/hdaudio.h>
#define AZX_REG_GCAP 0x00
#define AZX_GCAP_64OK (1 << 0) /* 64bit address support */
#define AZX_GCAP_NSDO (3 << 1) /* # of serial data out signals */
#define AZX_GCAP_BSS (31 << 3) /* # of bidirectional streams */
#define AZX_GCAP_ISS (15 << 8) /* # of input streams */
#define AZX_GCAP_OSS (15 << 12) /* # of output streams */
#define AZX_REG_VMIN 0x02
#define AZX_REG_VMAJ 0x03
#define AZX_REG_OUTPAY 0x04
#define AZX_REG_INPAY 0x06
#define AZX_REG_GCTL 0x08
#define AZX_GCTL_RESET (1 << 0) /* controller reset */
#define AZX_GCTL_FCNTRL (1 << 1) /* flush control */
#define AZX_GCTL_UNSOL (1 << 8) /* accept unsol. response enable */
#define AZX_REG_WAKEEN 0x0c
#define AZX_REG_STATESTS 0x0e
#define AZX_REG_GSTS 0x10
#define AZX_GSTS_FSTS (1 << 1) /* flush status */
#define AZX_REG_INTCTL 0x20
#define AZX_REG_INTSTS 0x24
#define AZX_REG_WALLCLK 0x30 /* 24Mhz source */
#define AZX_REG_OLD_SSYNC 0x34 /* SSYNC for old ICH */
#define AZX_REG_SSYNC 0x38
#define AZX_REG_CORBLBASE 0x40
#define AZX_REG_CORBUBASE 0x44
#define AZX_REG_CORBWP 0x48
#define AZX_REG_CORBRP 0x4a
#define AZX_CORBRP_RST (1 << 15) /* read pointer reset */
#define AZX_REG_CORBCTL 0x4c
#define AZX_CORBCTL_RUN (1 << 1) /* enable DMA */
#define AZX_CORBCTL_CMEIE (1 << 0) /* enable memory error irq */
#define AZX_REG_CORBSTS 0x4d
#define AZX_CORBSTS_CMEI (1 << 0) /* memory error indication */
#define AZX_REG_CORBSIZE 0x4e
#define AZX_REG_RIRBLBASE 0x50
#define AZX_REG_RIRBUBASE 0x54
#define AZX_REG_RIRBWP 0x58
#define AZX_RIRBWP_RST (1 << 15) /* write pointer reset */
#define AZX_REG_RINTCNT 0x5a
#define AZX_REG_RIRBCTL 0x5c
#define AZX_RBCTL_IRQ_EN (1 << 0) /* enable IRQ */
#define AZX_RBCTL_DMA_EN (1 << 1) /* enable DMA */
#define AZX_RBCTL_OVERRUN_EN (1 << 2) /* enable overrun irq */
#define AZX_REG_RIRBSTS 0x5d
#define AZX_RBSTS_IRQ (1 << 0) /* response irq */
#define AZX_RBSTS_OVERRUN (1 << 2) /* overrun irq */
#define AZX_REG_RIRBSIZE 0x5e
#define AZX_REG_IC 0x60
#define AZX_REG_IR 0x64
#define AZX_REG_IRS 0x68
#define AZX_IRS_VALID (1<<1)
#define AZX_IRS_BUSY (1<<0)
#define AZX_REG_DPLBASE 0x70
#define AZX_REG_DPUBASE 0x74
#define AZX_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 AZX_REG_SD_CTL 0x00
#define AZX_REG_SD_STS 0x03
#define AZX_REG_SD_LPIB 0x04
#define AZX_REG_SD_CBL 0x08
#define AZX_REG_SD_LVI 0x0c
#define AZX_REG_SD_FIFOW 0x0e
#define AZX_REG_SD_FIFOSIZE 0x10
#define AZX_REG_SD_FORMAT 0x12
#define AZX_REG_SD_BDLPL 0x18
#define AZX_REG_SD_BDLPU 0x1c
/* PCI space */
#define AZX_PCIREG_TCSEL 0x44
/*
* other constants
*/
/* 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)
/* 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: S3,SD2,SD1,SD0 */
#define STATESTS_INT_MASK ((1 << HDA_MAX_CODECS) - 1)
/* 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 AZX_INT_ALL_STREAM 0xff /* all stream interrupts */
#define AZX_INT_CTRL_EN 0x40000000 /* controller interrupt enable bit */
#define AZX_INT_GLOBAL_EN 0x80000000 /* global interrupt enable bit */
/* below are so far hardcoded - should read registers in future */
#define AZX_MAX_CORB_ENTRIES 256
#define AZX_MAX_RIRB_ENTRIES 256
/*
* helpers to read the stream position
*/
static inline unsigned int
snd_hdac_stream_get_pos_lpib(struct hdac_stream *stream)
{
return snd_hdac_stream_readl(stream, SD_LPIB);
}
static inline unsigned int
snd_hdac_stream_get_pos_posbuf(struct hdac_stream *stream)
{
return le32_to_cpu(*stream->posbuf);
}
#endif /* __SOUND_HDA_REGISTER_H */
include/sound/hdaudio.h
浏览文件 @ 8ab418d3
......@@ -6,12 +6,17 @@
#define __SOUND_HDAUDIO_H
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/timecounter.h>
#include <sound/core.h>
#include <sound/memalloc.h>
#include <sound/hda_verbs.h>
/* codec node id */
typedef u16 hda_nid_t;
struct hdac_bus;
struct hdac_stream;
struct hdac_device;
struct hdac_driver;
struct hdac_widget_tree;
......@@ -85,6 +90,7 @@ struct hdac_device {
enum {
HDA_DEV_CORE,
HDA_DEV_LEGACY,
HDA_DEV_ASOC,
};
/* direction */
......@@ -118,6 +124,15 @@ int snd_hdac_get_connections(struct hdac_device *codec, hda_nid_t nid,
hda_nid_t *conn_list, int max_conns);
int snd_hdac_get_sub_nodes(struct hdac_device *codec, hda_nid_t nid,
hda_nid_t *start_id);
unsigned int snd_hdac_calc_stream_format(unsigned int rate,
unsigned int channels,
unsigned int format,
unsigned int maxbps,
unsigned short spdif_ctls);
int snd_hdac_query_supported_pcm(struct hdac_device *codec, hda_nid_t nid,
u32 *ratesp, u64 *formatsp, unsigned int *bpsp);
bool snd_hdac_is_supported_format(struct hdac_device *codec, hda_nid_t nid,
unsigned int format);
/**
* snd_hdac_read_parm - read a codec parameter
......@@ -161,7 +176,7 @@ struct hdac_driver {
#define drv_to_hdac_driver(_drv) container_of(_drv, struct hdac_driver, driver)
/*
* HD-audio bus base driver
* Bus verb operators
*/
struct hdac_bus_ops {
/* send a single command */
......@@ -171,11 +186,55 @@ struct hdac_bus_ops {
unsigned int *res);
};
/*
* Lowlevel I/O operators
*/
struct hdac_io_ops {
/* mapped register accesses */
void (*reg_writel)(u32 value, u32 __iomem *addr);
u32 (*reg_readl)(u32 __iomem *addr);
void (*reg_writew)(u16 value, u16 __iomem *addr);
u16 (*reg_readw)(u16 __iomem *addr);
void (*reg_writeb)(u8 value, u8 __iomem *addr);
u8 (*reg_readb)(u8 __iomem *addr);
/* Allocation ops */
int (*dma_alloc_pages)(struct hdac_bus *bus, int type, size_t size,
struct snd_dma_buffer *buf);
void (*dma_free_pages)(struct hdac_bus *bus,
struct snd_dma_buffer *buf);
};
#define HDA_UNSOL_QUEUE_SIZE 64
#define HDA_MAX_CODECS 8 /* limit by controller side */
/* HD Audio class code */
#define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
/*
* CORB/RIRB
*
* Each CORB entry is 4byte, RIRB is 8byte
*/
struct hdac_rb {
__le32 *buf; /* virtual address of CORB/RIRB buffer */
dma_addr_t addr; /* physical address of CORB/RIRB buffer */
unsigned short rp, wp; /* RIRB read/write pointers */
int cmds[HDA_MAX_CODECS]; /* number of pending requests */
u32 res[HDA_MAX_CODECS]; /* last read value */
};
/*
* HD-audio bus base driver
*/
struct hdac_bus {
struct device *dev;
const struct hdac_bus_ops *ops;
const struct hdac_io_ops *io_ops;
/* h/w resources */
unsigned long addr;
void __iomem *remap_addr;
int irq;
/* codec linked list */
struct list_head codec_list;
......@@ -189,18 +248,45 @@ struct hdac_bus {
unsigned int unsol_rp, unsol_wp;
struct work_struct unsol_work;
/* bit flags of detected codecs */
unsigned long codec_mask;
/* bit flags of powered codecs */
unsigned long codec_powered;
/* flags */
/* CORB/RIRB */
struct hdac_rb corb;
struct hdac_rb rirb;
unsigned int last_cmd[HDA_MAX_CODECS]; /* last sent command */
/* CORB/RIRB and position buffers */
struct snd_dma_buffer rb;
struct snd_dma_buffer posbuf;
/* hdac_stream linked list */
struct list_head stream_list;
/* operation state */
bool chip_init:1; /* h/w initialized */
/* behavior flags */
bool sync_write:1; /* sync after verb write */
bool use_posbuf:1; /* use position buffer */
bool snoop:1; /* enable snooping */
bool align_bdle_4k:1; /* BDLE align 4K boundary */
bool reverse_assign:1; /* assign devices in reverse order */
bool corbrp_self_clear:1; /* CORBRP clears itself after reset */
int bdl_pos_adj; /* BDL position adjustment */
/* locks */
spinlock_t reg_lock;
struct mutex cmd_mutex;
};
int snd_hdac_bus_init(struct hdac_bus *bus, struct device *dev,
const struct hdac_bus_ops *ops);
const struct hdac_bus_ops *ops,
const struct hdac_io_ops *io_ops);
void snd_hdac_bus_exit(struct hdac_bus *bus);
int snd_hdac_bus_exec_verb(struct hdac_bus *bus, unsigned int addr,
unsigned int cmd, unsigned int *res);
......@@ -222,6 +308,200 @@ static inline void snd_hdac_codec_link_down(struct hdac_device *codec)
clear_bit(codec->addr, &codec->bus->codec_powered);
}
int snd_hdac_bus_send_cmd(struct hdac_bus *bus, unsigned int val);
int snd_hdac_bus_get_response(struct hdac_bus *bus, unsigned int addr,
unsigned int *res);
bool snd_hdac_bus_init_chip(struct hdac_bus *bus, bool full_reset);
void snd_hdac_bus_stop_chip(struct hdac_bus *bus);
void snd_hdac_bus_init_cmd_io(struct hdac_bus *bus);
void snd_hdac_bus_stop_cmd_io(struct hdac_bus *bus);
void snd_hdac_bus_enter_link_reset(struct hdac_bus *bus);
void snd_hdac_bus_exit_link_reset(struct hdac_bus *bus);
void snd_hdac_bus_update_rirb(struct hdac_bus *bus);
void snd_hdac_bus_handle_stream_irq(struct hdac_bus *bus, unsigned int status,
void (*ack)(struct hdac_bus *,
struct hdac_stream *));
int snd_hdac_bus_alloc_stream_pages(struct hdac_bus *bus);
void snd_hdac_bus_free_stream_pages(struct hdac_bus *bus);
/*
* macros for easy use
*/
#define _snd_hdac_chip_write(type, chip, reg, value) \
((chip)->io_ops->reg_write ## type(value, (chip)->remap_addr + (reg)))
#define _snd_hdac_chip_read(type, chip, reg) \
((chip)->io_ops->reg_read ## type((chip)->remap_addr + (reg)))
/* read/write a register, pass without AZX_REG_ prefix */
#define snd_hdac_chip_writel(chip, reg, value) \
_snd_hdac_chip_write(l, chip, AZX_REG_ ## reg, value)
#define snd_hdac_chip_writew(chip, reg, value) \
_snd_hdac_chip_write(w, chip, AZX_REG_ ## reg, value)
#define snd_hdac_chip_writeb(chip, reg, value) \
_snd_hdac_chip_write(b, chip, AZX_REG_ ## reg, value)
#define snd_hdac_chip_readl(chip, reg) \
_snd_hdac_chip_read(l, chip, AZX_REG_ ## reg)
#define snd_hdac_chip_readw(chip, reg) \
_snd_hdac_chip_read(w, chip, AZX_REG_ ## reg)
#define snd_hdac_chip_readb(chip, reg) \
_snd_hdac_chip_read(b, chip, AZX_REG_ ## reg)
/* update a register, pass without AZX_REG_ prefix */
#define snd_hdac_chip_updatel(chip, reg, mask, val) \
snd_hdac_chip_writel(chip, reg, \
(snd_hdac_chip_readl(chip, reg) & ~(mask)) | (val))
#define snd_hdac_chip_updatew(chip, reg, mask, val) \
snd_hdac_chip_writew(chip, reg, \
(snd_hdac_chip_readw(chip, reg) & ~(mask)) | (val))
#define snd_hdac_chip_updateb(chip, reg, mask, val) \
snd_hdac_chip_writeb(chip, reg, \
(snd_hdac_chip_readb(chip, reg) & ~(mask)) | (val))
/*
* HD-audio stream
*/
struct hdac_stream {
struct hdac_bus *bus;
struct snd_dma_buffer bdl; /* BDL buffer */
__le32 *posbuf; /* position buffer pointer */
int direction; /* playback / capture (SNDRV_PCM_STREAM_*) */
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 */
int assigned_key; /* last device# key assigned to */
bool opened:1;
bool running:1;
bool prepared:1;
bool no_period_wakeup:1;
bool locked:1;
/* timestamp */
unsigned long start_wallclk; /* start + minimum wallclk */
unsigned long period_wallclk; /* wallclk for period */
struct timecounter tc;
struct cyclecounter cc;
int delay_negative_threshold;
struct list_head list;
#ifdef CONFIG_SND_HDA_DSP_LOADER
/* DSP access mutex */
struct mutex dsp_mutex;
#endif
};
void snd_hdac_stream_init(struct hdac_bus *bus, struct hdac_stream *azx_dev,
int idx, int direction, int tag);
struct hdac_stream *snd_hdac_stream_assign(struct hdac_bus *bus,
struct snd_pcm_substream *substream);
void snd_hdac_stream_release(struct hdac_stream *azx_dev);
int snd_hdac_stream_setup(struct hdac_stream *azx_dev);
void snd_hdac_stream_cleanup(struct hdac_stream *azx_dev);
int snd_hdac_stream_setup_periods(struct hdac_stream *azx_dev);
int snd_hdac_stream_set_params(struct hdac_stream *azx_dev,
unsigned int format_val);
void snd_hdac_stream_start(struct hdac_stream *azx_dev, bool fresh_start);
void snd_hdac_stream_clear(struct hdac_stream *azx_dev);
void snd_hdac_stream_stop(struct hdac_stream *azx_dev);
void snd_hdac_stream_reset(struct hdac_stream *azx_dev);
void snd_hdac_stream_sync_trigger(struct hdac_stream *azx_dev, bool set,
unsigned int streams, unsigned int reg);
void snd_hdac_stream_sync(struct hdac_stream *azx_dev, bool start,
unsigned int streams);
void snd_hdac_stream_timecounter_init(struct hdac_stream *azx_dev,
unsigned int streams);
/*
* macros for easy use
*/
#define _snd_hdac_stream_write(type, dev, reg, value) \
((dev)->bus->io_ops->reg_write ## type(value, (dev)->sd_addr + (reg)))
#define _snd_hdac_stream_read(type, dev, reg) \
((dev)->bus->io_ops->reg_read ## type((dev)->sd_addr + (reg)))
/* read/write a register, pass without AZX_REG_ prefix */
#define snd_hdac_stream_writel(dev, reg, value) \
_snd_hdac_stream_write(l, dev, AZX_REG_ ## reg, value)
#define snd_hdac_stream_writew(dev, reg, value) \
_snd_hdac_stream_write(w, dev, AZX_REG_ ## reg, value)
#define snd_hdac_stream_writeb(dev, reg, value) \
_snd_hdac_stream_write(b, dev, AZX_REG_ ## reg, value)
#define snd_hdac_stream_readl(dev, reg) \
_snd_hdac_stream_read(l, dev, AZX_REG_ ## reg)
#define snd_hdac_stream_readw(dev, reg) \
_snd_hdac_stream_read(w, dev, AZX_REG_ ## reg)
#define snd_hdac_stream_readb(dev, reg) \
_snd_hdac_stream_read(b, dev, AZX_REG_ ## reg)
/* update a register, pass without AZX_REG_ prefix */
#define snd_hdac_stream_updatel(dev, reg, mask, val) \
snd_hdac_stream_writel(dev, reg, \
(snd_hdac_stream_readl(dev, reg) & \
~(mask)) | (val))
#define snd_hdac_stream_updatew(dev, reg, mask, val) \
snd_hdac_stream_writew(dev, reg, \
(snd_hdac_stream_readw(dev, reg) & \
~(mask)) | (val))
#define snd_hdac_stream_updateb(dev, reg, mask, val) \
snd_hdac_stream_writeb(dev, reg, \
(snd_hdac_stream_readb(dev, reg) & \
~(mask)) | (val))
#ifdef CONFIG_SND_HDA_DSP_LOADER
/* DSP lock helpers */
#define snd_hdac_dsp_lock_init(dev) mutex_init(&(dev)->dsp_mutex)
#define snd_hdac_dsp_lock(dev) mutex_lock(&(dev)->dsp_mutex)
#define snd_hdac_dsp_unlock(dev) mutex_unlock(&(dev)->dsp_mutex)
#define snd_hdac_stream_is_locked(dev) ((dev)->locked)
/* DSP loader helpers */
int snd_hdac_dsp_prepare(struct hdac_stream *azx_dev, unsigned int format,
unsigned int byte_size, struct snd_dma_buffer *bufp);
void snd_hdac_dsp_trigger(struct hdac_stream *azx_dev, bool start);
void snd_hdac_dsp_cleanup(struct hdac_stream *azx_dev,
struct snd_dma_buffer *dmab);
#else /* CONFIG_SND_HDA_DSP_LOADER */
#define snd_hdac_dsp_lock_init(dev) do {} while (0)
#define snd_hdac_dsp_lock(dev) do {} while (0)
#define snd_hdac_dsp_unlock(dev) do {} while (0)
#define snd_hdac_stream_is_locked(dev) 0
static inline int
snd_hdac_dsp_prepare(struct hdac_stream *azx_dev, unsigned int format,
unsigned int byte_size, struct snd_dma_buffer *bufp)
{
return 0;
}
static inline void snd_hdac_dsp_trigger(struct hdac_stream *azx_dev, bool start)
{
}
static inline void snd_hdac_dsp_cleanup(struct hdac_stream *azx_dev,
struct snd_dma_buffer *dmab)
{
}
#endif /* CONFIG_SND_HDA_DSP_LOADER */
/*
* generic array helpers
*/
......
sound/hda/Kconfig
浏览文件 @ 8ab418d3
config SND_HDA_CORE
tristate
select REGMAP
config SND_HDA_DSP_LOADER
bool
sound/hda/Makefile
浏览文件 @ 8ab418d3
snd-hda-core-objs := hda_bus_type.o hdac_bus.o hdac_device.o hdac_sysfs.o \
hdac_regmap.o array.o
hdac_regmap.o hdac_controller.o hdac_stream.o array.o
snd-hda-core-objs += trace.o
CFLAGS_trace.o := -I$(src)
......
sound/hda/hdac_bus.c
浏览文件 @ 8ab418d3
......@@ -11,21 +11,36 @@
static void process_unsol_events(struct work_struct *work);
static const struct hdac_bus_ops default_ops = {
.command = snd_hdac_bus_send_cmd,
.get_response = snd_hdac_bus_get_response,
};
/**
* snd_hdac_bus_init - initialize a HD-audio bas bus
* @bus: the pointer to bus object
* @ops: bus verb operators
* @io_ops: lowlevel I/O operators
*
* Returns 0 if successful, or a negative error code.
*/
int snd_hdac_bus_init(struct hdac_bus *bus, struct device *dev,
const struct hdac_bus_ops *ops)
const struct hdac_bus_ops *ops,
const struct hdac_io_ops *io_ops)
{
memset(bus, 0, sizeof(*bus));
bus->dev = dev;
bus->ops = ops;
if (ops)
bus->ops = ops;
else
bus->ops = &default_ops;
bus->io_ops = io_ops;
INIT_LIST_HEAD(&bus->stream_list);
INIT_LIST_HEAD(&bus->codec_list);
INIT_WORK(&bus->unsol_work, process_unsol_events);
spin_lock_init(&bus->reg_lock);
mutex_init(&bus->cmd_mutex);
bus->irq = -1;
return 0;
}
EXPORT_SYMBOL_GPL(snd_hdac_bus_init);
......@@ -36,6 +51,7 @@ EXPORT_SYMBOL_GPL(snd_hdac_bus_init);
*/
void snd_hdac_bus_exit(struct hdac_bus *bus)
{
WARN_ON(!list_empty(&bus->stream_list));
WARN_ON(!list_empty(&bus->codec_list));
cancel_work_sync(&bus->unsol_work);
}
......
sound/hda/hdac_controller.c 0 → 100644
浏览文件 @ 8ab418d3
/*
* HD-audio controller helpers
*/
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/export.h>
#include <sound/core.h>
#include <sound/hdaudio.h>
#include <sound/hda_register.h>
/* clear CORB read pointer properly */
static void azx_clear_corbrp(struct hdac_bus *bus)
{
int timeout;
for (timeout = 1000; timeout > 0; timeout--) {
if (snd_hdac_chip_readw(bus, CORBRP) & AZX_CORBRP_RST)
break;
udelay(1);
}
if (timeout <= 0)
dev_err(bus->dev, "CORB reset timeout#1, CORBRP = %d\n",
snd_hdac_chip_readw(bus, CORBRP));
snd_hdac_chip_writew(bus, CORBRP, 0);
for (timeout = 1000; timeout > 0; timeout--) {
if (snd_hdac_chip_readw(bus, CORBRP) == 0)
break;
udelay(1);
}
if (timeout <= 0)
dev_err(bus->dev, "CORB reset timeout#2, CORBRP = %d\n",
snd_hdac_chip_readw(bus, CORBRP));
}
/**
* snd_hdac_bus_init_cmd_io - set up CORB/RIRB buffers
* @bus: HD-audio core bus
*/
void snd_hdac_bus_init_cmd_io(struct hdac_bus *bus)
{
spin_lock_irq(&bus->reg_lock);
/* CORB set up */
bus->corb.addr = bus->rb.addr;
bus->corb.buf = (__le32 *)bus->rb.area;
snd_hdac_chip_writel(bus, CORBLBASE, (u32)bus->corb.addr);
snd_hdac_chip_writel(bus, CORBUBASE, upper_32_bits(bus->corb.addr));
/* set the corb size to 256 entries (ULI requires explicitly) */
snd_hdac_chip_writeb(bus, CORBSIZE, 0x02);
/* set the corb write pointer to 0 */
snd_hdac_chip_writew(bus, CORBWP, 0);
/* reset the corb hw read pointer */
snd_hdac_chip_writew(bus, CORBRP, AZX_CORBRP_RST);
if (!bus->corbrp_self_clear)
azx_clear_corbrp(bus);
/* enable corb dma */
snd_hdac_chip_writeb(bus, CORBCTL, AZX_CORBCTL_RUN);
/* RIRB set up */
bus->rirb.addr = bus->rb.addr + 2048;
bus->rirb.buf = (__le32 *)(bus->rb.area + 2048);
bus->rirb.wp = bus->rirb.rp = 0;
memset(bus->rirb.cmds, 0, sizeof(bus->rirb.cmds));
snd_hdac_chip_writel(bus, RIRBLBASE, (u32)bus->rirb.addr);
snd_hdac_chip_writel(bus, RIRBUBASE, upper_32_bits(bus->rirb.addr));
/* set the rirb size to 256 entries (ULI requires explicitly) */
snd_hdac_chip_writeb(bus, RIRBSIZE, 0x02);
/* reset the rirb hw write pointer */
snd_hdac_chip_writew(bus, RIRBWP, AZX_RIRBWP_RST);
/* set N=1, get RIRB response interrupt for new entry */
snd_hdac_chip_writew(bus, RINTCNT, 1);
/* enable rirb dma and response irq */
snd_hdac_chip_writeb(bus, RIRBCTL, AZX_RBCTL_DMA_EN | AZX_RBCTL_IRQ_EN);
spin_unlock_irq(&bus->reg_lock);
}
EXPORT_SYMBOL_GPL(snd_hdac_bus_init_cmd_io);
/**
* snd_hdac_bus_stop_cmd_io - clean up CORB/RIRB buffers
* @bus: HD-audio core bus
*/
void snd_hdac_bus_stop_cmd_io(struct hdac_bus *bus)
{
spin_lock_irq(&bus->reg_lock);
/* disable ringbuffer DMAs */
snd_hdac_chip_writeb(bus, RIRBCTL, 0);
snd_hdac_chip_writeb(bus, CORBCTL, 0);
/* disable unsolicited responses */
snd_hdac_chip_updatel(bus, GCTL, AZX_GCTL_UNSOL, 0);
spin_unlock_irq(&bus->reg_lock);
}
EXPORT_SYMBOL_GPL(snd_hdac_bus_stop_cmd_io);
static unsigned int azx_command_addr(u32 cmd)
{
unsigned int addr = cmd >> 28;
if (snd_BUG_ON(addr >= HDA_MAX_CODECS))
addr = 0;
return addr;
}
/**
* snd_hdac_bus_send_cmd - send a command verb via CORB
* @bus: HD-audio core bus
* @val: encoded verb value to send
*
* Returns zero for success or a negative error code.
*/
int snd_hdac_bus_send_cmd(struct hdac_bus *bus, unsigned int val)
{
unsigned int addr = azx_command_addr(val);
unsigned int wp, rp;
spin_lock_irq(&bus->reg_lock);
bus->last_cmd[azx_command_addr(val)] = val;
/* add command to corb */
wp = snd_hdac_chip_readw(bus, CORBWP);
if (wp == 0xffff) {
/* something wrong, controller likely turned to D3 */
spin_unlock_irq(&bus->reg_lock);
return -EIO;
}
wp++;
wp %= AZX_MAX_CORB_ENTRIES;
rp = snd_hdac_chip_readw(bus, CORBRP);
if (wp == rp) {
/* oops, it's full */
spin_unlock_irq(&bus->reg_lock);
return -EAGAIN;
}
bus->rirb.cmds[addr]++;
bus->corb.buf[wp] = cpu_to_le32(val);
snd_hdac_chip_writew(bus, CORBWP, wp);
spin_unlock_irq(&bus->reg_lock);
return 0;
}
EXPORT_SYMBOL_GPL(snd_hdac_bus_send_cmd);
#define AZX_RIRB_EX_UNSOL_EV (1<<4)
/**
* snd_hdac_bus_update_rirb - retrieve RIRB entries
* @bus: HD-audio core bus
*
* Usually called from interrupt handler.
*/
void snd_hdac_bus_update_rirb(struct hdac_bus *bus)
{
unsigned int rp, wp;
unsigned int addr;
u32 res, res_ex;
wp = snd_hdac_chip_readw(bus, RIRBWP);
if (wp == 0xffff) {
/* something wrong, controller likely turned to D3 */
return;
}
if (wp == bus->rirb.wp)
return;
bus->rirb.wp = wp;
while (bus->rirb.rp != wp) {
bus->rirb.rp++;
bus->rirb.rp %= AZX_MAX_RIRB_ENTRIES;
rp = bus->rirb.rp << 1; /* an RIRB entry is 8-bytes */
res_ex = le32_to_cpu(bus->rirb.buf[rp + 1]);
res = le32_to_cpu(bus->rirb.buf[rp]);
addr = res_ex & 0xf;
if (addr >= HDA_MAX_CODECS) {
dev_err(bus->dev,
"spurious response %#x:%#x, rp = %d, wp = %d",
res, res_ex, bus->rirb.rp, wp);
snd_BUG();
} else if (res_ex & AZX_RIRB_EX_UNSOL_EV)
snd_hdac_bus_queue_event(bus, res, res_ex);
else if (bus->rirb.cmds[addr]) {
bus->rirb.res[addr] = res;
bus->rirb.cmds[addr]--;
} else {
dev_err_ratelimited(bus->dev,
"spurious response %#x:%#x, last cmd=%#08x\n",
res, res_ex, bus->last_cmd[addr]);
}
}
}
EXPORT_SYMBOL_GPL(snd_hdac_bus_update_rirb);
/**
* snd_hdac_bus_get_response - receive a response via RIRB
* @bus: HD-audio core bus
* @addr: codec address
* @res: pointer to store the value, NULL when not needed
*
* Returns zero if a value is read, or a negative error code.
*/
int snd_hdac_bus_get_response(struct hdac_bus *bus, unsigned int addr,
unsigned int *res)
{
unsigned long timeout;
unsigned long loopcounter;
timeout = jiffies + msecs_to_jiffies(1000);
for (loopcounter = 0;; loopcounter++) {
spin_lock_irq(&bus->reg_lock);
if (!bus->rirb.cmds[addr]) {
if (res)
*res = bus->rirb.res[addr]; /* the last value */
spin_unlock_irq(&bus->reg_lock);
return 0;
}
spin_unlock_irq(&bus->reg_lock);
if (time_after(jiffies, timeout))
break;
if (loopcounter > 3000)
msleep(2); /* temporary workaround */
else {
udelay(10);
cond_resched();
}
}
return -EIO;
}
EXPORT_SYMBOL_GPL(snd_hdac_bus_get_response);
/*
* Lowlevel interface
*/
/**
* snd_hdac_bus_enter_link_reset - enter link reset
* @bus: HD-audio core bus
*
* Enter to the link reset state.
*/
void snd_hdac_bus_enter_link_reset(struct hdac_bus *bus)
{
unsigned long timeout;
/* reset controller */
snd_hdac_chip_updatel(bus, GCTL, AZX_GCTL_RESET, 0);
timeout = jiffies + msecs_to_jiffies(100);
while ((snd_hdac_chip_readb(bus, GCTL) & AZX_GCTL_RESET) &&
time_before(jiffies, timeout))
usleep_range(500, 1000);
}
EXPORT_SYMBOL_GPL(snd_hdac_bus_enter_link_reset);
/**
* snd_hdac_bus_exit_link_reset - exit link reset
* @bus: HD-audio core bus
*
* Exit from the link reset state.
*/
void snd_hdac_bus_exit_link_reset(struct hdac_bus *bus)
{
unsigned long timeout;
snd_hdac_chip_updateb(bus, GCTL, 0, AZX_GCTL_RESET);
timeout = jiffies + msecs_to_jiffies(100);
while (!snd_hdac_chip_readb(bus, GCTL) && time_before(jiffies, timeout))
usleep_range(500, 1000);
}
EXPORT_SYMBOL_GPL(snd_hdac_bus_exit_link_reset);
/* reset codec link */
static int azx_reset(struct hdac_bus *bus, bool full_reset)
{
if (!full_reset)
goto skip_reset;
/* clear STATESTS */
snd_hdac_chip_writew(bus, STATESTS, STATESTS_INT_MASK);
/* reset controller */
snd_hdac_bus_enter_link_reset(bus);
/* delay for >= 100us for codec PLL to settle per spec
* Rev 0.9 section 5.5.1
*/
usleep_range(500, 1000);
/* Bring controller out of reset */
snd_hdac_bus_exit_link_reset(bus);
/* Brent Chartrand said to wait >= 540us for codecs to initialize */
usleep_range(1000, 1200);
skip_reset:
/* check to see if controller is ready */
if (!snd_hdac_chip_readb(bus, GCTL)) {
dev_dbg(bus->dev, "azx_reset: controller not ready!\n");
return -EBUSY;
}
/* Accept unsolicited responses */
snd_hdac_chip_updatel(bus, GCTL, 0, AZX_GCTL_UNSOL);
/* detect codecs */
if (!bus->codec_mask) {
bus->codec_mask = snd_hdac_chip_readw(bus, STATESTS);
dev_dbg(bus->dev, "codec_mask = 0x%lx\n", bus->codec_mask);
}
return 0;
}
/* enable interrupts */
static void azx_int_enable(struct hdac_bus *bus)
{
/* enable controller CIE and GIE */
snd_hdac_chip_updatel(bus, INTCTL, 0, AZX_INT_CTRL_EN | AZX_INT_GLOBAL_EN);
}
/* disable interrupts */
static void azx_int_disable(struct hdac_bus *bus)
{
struct hdac_stream *azx_dev;
/* disable interrupts in stream descriptor */
list_for_each_entry(azx_dev, &bus->stream_list, list)
snd_hdac_stream_updateb(azx_dev, SD_CTL, SD_INT_MASK, 0);
/* disable SIE for all streams */
snd_hdac_chip_writeb(bus, INTCTL, 0);
/* disable controller CIE and GIE */
snd_hdac_chip_updatel(bus, INTCTL, AZX_INT_CTRL_EN | AZX_INT_GLOBAL_EN, 0);
}
/* clear interrupts */
static void azx_int_clear(struct hdac_bus *bus)
{
struct hdac_stream *azx_dev;
/* clear stream status */
list_for_each_entry(azx_dev, &bus->stream_list, list)
snd_hdac_stream_writeb(azx_dev, SD_STS, SD_INT_MASK);
/* clear STATESTS */
snd_hdac_chip_writew(bus, STATESTS, STATESTS_INT_MASK);
/* clear rirb status */
snd_hdac_chip_writeb(bus, RIRBSTS, RIRB_INT_MASK);
/* clear int status */
snd_hdac_chip_writel(bus, INTSTS, AZX_INT_CTRL_EN | AZX_INT_ALL_STREAM);
}
/**
* snd_hdac_bus_init_chip - reset and start the controller registers
* @bus: HD-audio core bus
* @full_reset: Do full reset
*/
bool snd_hdac_bus_init_chip(struct hdac_bus *bus, bool full_reset)
{
if (bus->chip_init)
return false;
/* reset controller */
azx_reset(bus, full_reset);
/* initialize interrupts */
azx_int_clear(bus);
azx_int_enable(bus);
/* initialize the codec command I/O */
snd_hdac_bus_init_cmd_io(bus);
/* program the position buffer */
if (bus->use_posbuf && bus->posbuf.addr) {
snd_hdac_chip_writel(bus, DPLBASE, (u32)bus->posbuf.addr);
snd_hdac_chip_writel(bus, DPUBASE, upper_32_bits(bus->posbuf.addr));
}
bus->chip_init = true;
return true;
}
EXPORT_SYMBOL_GPL(snd_hdac_bus_init_chip);
/**
* snd_hdac_bus_stop_chip - disable the whole IRQ and I/Os
* @bus: HD-audio core bus
*/
void snd_hdac_bus_stop_chip(struct hdac_bus *bus)
{
if (!bus->chip_init)
return;
/* disable interrupts */
azx_int_disable(bus);
azx_int_clear(bus);
/* disable CORB/RIRB */
snd_hdac_bus_stop_cmd_io(bus);
/* disable position buffer */
if (bus->posbuf.addr) {
snd_hdac_chip_writel(bus, DPLBASE, 0);
snd_hdac_chip_writel(bus, DPUBASE, 0);
}
bus->chip_init = false;
}
EXPORT_SYMBOL_GPL(snd_hdac_bus_stop_chip);
/**
* snd_hdac_bus_handle_stream_irq - interrupt handler for streams
* @bus: HD-audio core bus
* @status: INTSTS register value
* @ask: callback to be called for woken streams
*/
void snd_hdac_bus_handle_stream_irq(struct hdac_bus *bus, unsigned int status,
void (*ack)(struct hdac_bus *,
struct hdac_stream *))
{
struct hdac_stream *azx_dev;
u8 sd_status;
list_for_each_entry(azx_dev, &bus->stream_list, list) {
if (status & azx_dev->sd_int_sta_mask) {
sd_status = snd_hdac_stream_readb(azx_dev, SD_STS);
snd_hdac_stream_writeb(azx_dev, SD_STS, SD_INT_MASK);
if (!azx_dev->substream || !azx_dev->running ||
!(sd_status & SD_INT_COMPLETE))
continue;
if (ack)
ack(bus, azx_dev);
}
}
}
EXPORT_SYMBOL_GPL(snd_hdac_bus_handle_stream_irq);
/**
* snd_hdac_bus_alloc_stream_pages - allocate BDL and other buffers
* @bus: HD-audio core bus
*
* Call this after assigning the all streams.
* Returns zero for success, or a negative error code.
*/
int snd_hdac_bus_alloc_stream_pages(struct hdac_bus *bus)
{
struct hdac_stream *s;
int num_streams = 0;
int err;
list_for_each_entry(s, &bus->stream_list, list) {
/* allocate memory for the BDL for each stream */
err = bus->io_ops->dma_alloc_pages(bus, SNDRV_DMA_TYPE_DEV,
BDL_SIZE, &s->bdl);
num_streams++;
if (err < 0)
return -ENOMEM;
}
if (WARN_ON(!num_streams))
return -EINVAL;
/* allocate memory for the position buffer */
err = bus->io_ops->dma_alloc_pages(bus, SNDRV_DMA_TYPE_DEV,
num_streams * 8, &bus->posbuf);
if (err < 0)
return -ENOMEM;
list_for_each_entry(s, &bus->stream_list, list)
s->posbuf = (__le32 *)(bus->posbuf.area + s->index * 8);
/* single page (at least 4096 bytes) must suffice for both ringbuffes */
return bus->io_ops->dma_alloc_pages(bus, SNDRV_DMA_TYPE_DEV,
PAGE_SIZE, &bus->rb);
}
EXPORT_SYMBOL_GPL(snd_hdac_bus_alloc_stream_pages);
/**
* snd_hdac_bus_free_stream_pages - release BDL and other buffers
* @bus: HD-audio core bus
*/
void snd_hdac_bus_free_stream_pages(struct hdac_bus *bus)
{
struct hdac_stream *s;
list_for_each_entry(s, &bus->stream_list, list) {
if (s->bdl.area)
bus->io_ops->dma_free_pages(bus, &s->bdl);
}
if (bus->rb.area)
bus->io_ops->dma_free_pages(bus, &bus->rb);
if (bus->posbuf.area)
bus->io_ops->dma_free_pages(bus, &bus->posbuf);
}
EXPORT_SYMBOL_GPL(snd_hdac_bus_free_stream_pages);
sound/hda/hdac_device.c
浏览文件 @ 8ab418d3
......@@ -10,6 +10,7 @@
#include <linux/pm_runtime.h>
#include <sound/hdaudio.h>
#include <sound/hda_regmap.h>
#include <sound/pcm.h>
#include "local.h"
static void setup_fg_nodes(struct hdac_device *codec);
......@@ -597,3 +598,302 @@ static int get_codec_vendor_name(struct hdac_device *codec)
codec->vendor_name = kasprintf(GFP_KERNEL, "Generic %04x", vendor_id);
return codec->vendor_name ? 0 : -ENOMEM;
}
/*
* stream formats
*/
struct hda_rate_tbl {
unsigned int hz;
unsigned int alsa_bits;
unsigned int hda_fmt;
};
/* rate = base * mult / div */
#define HDA_RATE(base, mult, div) \
(AC_FMT_BASE_##base##K | (((mult) - 1) << AC_FMT_MULT_SHIFT) | \
(((div) - 1) << AC_FMT_DIV_SHIFT))
static struct hda_rate_tbl rate_bits[] = {
/* rate in Hz, ALSA rate bitmask, HDA format value */
/* autodetected value used in snd_hda_query_supported_pcm */
{ 8000, SNDRV_PCM_RATE_8000, HDA_RATE(48, 1, 6) },
{ 11025, SNDRV_PCM_RATE_11025, HDA_RATE(44, 1, 4) },
{ 16000, SNDRV_PCM_RATE_16000, HDA_RATE(48, 1, 3) },
{ 22050, SNDRV_PCM_RATE_22050, HDA_RATE(44, 1, 2) },
{ 32000, SNDRV_PCM_RATE_32000, HDA_RATE(48, 2, 3) },
{ 44100, SNDRV_PCM_RATE_44100, HDA_RATE(44, 1, 1) },
{ 48000, SNDRV_PCM_RATE_48000, HDA_RATE(48, 1, 1) },
{ 88200, SNDRV_PCM_RATE_88200, HDA_RATE(44, 2, 1) },
{ 96000, SNDRV_PCM_RATE_96000, HDA_RATE(48, 2, 1) },
{ 176400, SNDRV_PCM_RATE_176400, HDA_RATE(44, 4, 1) },
{ 192000, SNDRV_PCM_RATE_192000, HDA_RATE(48, 4, 1) },
#define AC_PAR_PCM_RATE_BITS 11
/* up to bits 10, 384kHZ isn't supported properly */
/* not autodetected value */
{ 9600, SNDRV_PCM_RATE_KNOT, HDA_RATE(48, 1, 5) },
{ 0 } /* terminator */
};
/**
* snd_hdac_calc_stream_format - calculate the format bitset
* @rate: the sample rate
* @channels: the number of channels
* @format: the PCM format (SNDRV_PCM_FORMAT_XXX)
* @maxbps: the max. bps
* @spdif_ctls: HD-audio SPDIF status bits (0 if irrelevant)
*
* Calculate the format bitset from the given rate, channels and th PCM format.
*
* Return zero if invalid.
*/
unsigned int snd_hdac_calc_stream_format(unsigned int rate,
unsigned int channels,
unsigned int format,
unsigned int maxbps,
unsigned short spdif_ctls)
{
int i;
unsigned int val = 0;
for (i = 0; rate_bits[i].hz; i++)
if (rate_bits[i].hz == rate) {
val = rate_bits[i].hda_fmt;
break;
}
if (!rate_bits[i].hz)
return 0;
if (channels == 0 || channels > 8)
return 0;
val |= channels - 1;
switch (snd_pcm_format_width(format)) {
case 8:
val |= AC_FMT_BITS_8;
break;
case 16:
val |= AC_FMT_BITS_16;
break;
case 20:
case 24:
case 32:
if (maxbps >= 32 || format == SNDRV_PCM_FORMAT_FLOAT_LE)
val |= AC_FMT_BITS_32;
else if (maxbps >= 24)
val |= AC_FMT_BITS_24;
else
val |= AC_FMT_BITS_20;
break;
default:
return 0;
}
if (spdif_ctls & AC_DIG1_NONAUDIO)
val |= AC_FMT_TYPE_NON_PCM;
return val;
}
EXPORT_SYMBOL_GPL(snd_hdac_calc_stream_format);
static unsigned int query_pcm_param(struct hdac_device *codec, hda_nid_t nid)
{
unsigned int val = 0;
if (nid != codec->afg &&
(get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD))
val = snd_hdac_read_parm(codec, nid, AC_PAR_PCM);
if (!val || val == -1)
val = snd_hdac_read_parm(codec, codec->afg, AC_PAR_PCM);
if (!val || val == -1)
return 0;
return val;
}
static unsigned int query_stream_param(struct hdac_device *codec, hda_nid_t nid)
{
unsigned int streams = snd_hdac_read_parm(codec, nid, AC_PAR_STREAM);
if (!streams || streams == -1)
streams = snd_hdac_read_parm(codec, codec->afg, AC_PAR_STREAM);
if (!streams || streams == -1)
return 0;
return streams;
}
/**
* snd_hdac_query_supported_pcm - query the supported PCM rates and formats
* @codec: the codec object
* @nid: NID to query
* @ratesp: the pointer to store the detected rate bitflags
* @formatsp: the pointer to store the detected formats
* @bpsp: the pointer to store the detected format widths
*
* Queries the supported PCM rates and formats. The NULL @ratesp, @formatsp
* or @bsps argument is ignored.
*
* Returns 0 if successful, otherwise a negative error code.
*/
int snd_hdac_query_supported_pcm(struct hdac_device *codec, hda_nid_t nid,
u32 *ratesp, u64 *formatsp, unsigned int *bpsp)
{
unsigned int i, val, wcaps;
wcaps = get_wcaps(codec, nid);
val = query_pcm_param(codec, nid);
if (ratesp) {
u32 rates = 0;
for (i = 0; i < AC_PAR_PCM_RATE_BITS; i++) {
if (val & (1 << i))
rates |= rate_bits[i].alsa_bits;
}
if (rates == 0) {
dev_err(&codec->dev,
"rates == 0 (nid=0x%x, val=0x%x, ovrd=%i)\n",
nid, val,
(wcaps & AC_WCAP_FORMAT_OVRD) ? 1 : 0);
return -EIO;
}
*ratesp = rates;
}
if (formatsp || bpsp) {
u64 formats = 0;
unsigned int streams, bps;
streams = query_stream_param(codec, nid);
if (!streams)
return -EIO;
bps = 0;
if (streams & AC_SUPFMT_PCM) {
if (val & AC_SUPPCM_BITS_8) {
formats |= SNDRV_PCM_FMTBIT_U8;
bps = 8;
}
if (val & AC_SUPPCM_BITS_16) {
formats |= SNDRV_PCM_FMTBIT_S16_LE;
bps = 16;
}
if (wcaps & AC_WCAP_DIGITAL) {
if (val & AC_SUPPCM_BITS_32)
formats |= SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE;
if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24))
formats |= SNDRV_PCM_FMTBIT_S32_LE;
if (val & AC_SUPPCM_BITS_24)
bps = 24;
else if (val & AC_SUPPCM_BITS_20)
bps = 20;
} else if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24|
AC_SUPPCM_BITS_32)) {
formats |= SNDRV_PCM_FMTBIT_S32_LE;
if (val & AC_SUPPCM_BITS_32)
bps = 32;
else if (val & AC_SUPPCM_BITS_24)
bps = 24;
else if (val & AC_SUPPCM_BITS_20)
bps = 20;
}
}
#if 0 /* FIXME: CS4206 doesn't work, which is the only codec supporting float */
if (streams & AC_SUPFMT_FLOAT32) {
formats |= SNDRV_PCM_FMTBIT_FLOAT_LE;
if (!bps)
bps = 32;
}
#endif
if (streams == AC_SUPFMT_AC3) {
/* should be exclusive */
/* temporary hack: we have still no proper support
* for the direct AC3 stream...
*/
formats |= SNDRV_PCM_FMTBIT_U8;
bps = 8;
}
if (formats == 0) {
dev_err(&codec->dev,
"formats == 0 (nid=0x%x, val=0x%x, ovrd=%i, streams=0x%x)\n",
nid, val,
(wcaps & AC_WCAP_FORMAT_OVRD) ? 1 : 0,
streams);
return -EIO;
}
if (formatsp)
*formatsp = formats;
if (bpsp)
*bpsp = bps;
}
return 0;
}
EXPORT_SYMBOL_GPL(snd_hdac_query_supported_pcm);
/**
* snd_hdac_is_supported_format - Check the validity of the format
* @codec: the codec object
* @nid: NID to check
* @format: the HD-audio format value to check
*
* Check whether the given node supports the format value.
*
* Returns true if supported, false if not.
*/
bool snd_hdac_is_supported_format(struct hdac_device *codec, hda_nid_t nid,
unsigned int format)
{
int i;
unsigned int val = 0, rate, stream;
val = query_pcm_param(codec, nid);
if (!val)
return false;
rate = format & 0xff00;
for (i = 0; i < AC_PAR_PCM_RATE_BITS; i++)
if (rate_bits[i].hda_fmt == rate) {
if (val & (1 << i))
break;
return false;
}
if (i >= AC_PAR_PCM_RATE_BITS)
return false;
stream = query_stream_param(codec, nid);
if (!stream)
return false;
if (stream & AC_SUPFMT_PCM) {
switch (format & 0xf0) {
case 0x00:
if (!(val & AC_SUPPCM_BITS_8))
return false;
break;
case 0x10:
if (!(val & AC_SUPPCM_BITS_16))
return false;
break;
case 0x20:
if (!(val & AC_SUPPCM_BITS_20))
return false;
break;
case 0x30:
if (!(val & AC_SUPPCM_BITS_24))
return false;
break;
case 0x40:
if (!(val & AC_SUPPCM_BITS_32))
return false;
break;
default:
return false;
}
} else {
/* FIXME: check for float32 and AC3? */
}
return true;
}
EXPORT_SYMBOL_GPL(snd_hdac_is_supported_format);
sound/hda/hdac_stream.c 0 → 100644
浏览文件 @ 8ab418d3
/*
* HD-audio stream operations
*/
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/export.h>
#include <linux/clocksource.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/hdaudio.h>
#include <sound/hda_register.h>
/**
* snd_hdac_stream_init - initialize each stream (aka device)
* @bus: HD-audio core bus
* @azx_dev: HD-audio core stream object to initialize
* @idx: stream index number
* @direction: stream direction (SNDRV_PCM_STREAM_PLAYBACK or SNDRV_PCM_STREAM_CAPTURE)
* @tag: the tag id to assign
*
* Assign the starting bdl address to each stream (device) and initialize.
*/
void snd_hdac_stream_init(struct hdac_bus *bus, struct hdac_stream *azx_dev,
int idx, int direction, int tag)
{
azx_dev->bus = bus;
/* offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
azx_dev->sd_addr = bus->remap_addr + (0x20 * idx + 0x80);
/* int mask: SDI0=0x01, SDI1=0x02, ... SDO3=0x80 */
azx_dev->sd_int_sta_mask = 1 << idx;
azx_dev->index = idx;
azx_dev->direction = direction;
azx_dev->stream_tag = tag;
snd_hdac_dsp_lock_init(azx_dev);
list_add_tail(&azx_dev->list, &bus->stream_list);
}
EXPORT_SYMBOL_GPL(snd_hdac_stream_init);
/**
* snd_hdac_stream_start - start a stream
* @azx_dev: HD-audio core stream to start
* @fresh_start: false = wallclock timestamp relative to period wallclock
*
* Start a stream, set start_wallclk and set the running flag.
*/
void snd_hdac_stream_start(struct hdac_stream *azx_dev, bool fresh_start)
{
struct hdac_bus *bus = azx_dev->bus;
azx_dev->start_wallclk = snd_hdac_chip_readl(bus, WALLCLK);
if (!fresh_start)
azx_dev->start_wallclk -= azx_dev->period_wallclk;
/* enable SIE */
snd_hdac_chip_updatel(bus, INTCTL, 0, 1 << azx_dev->index);
/* set DMA start and interrupt mask */
snd_hdac_stream_updateb(azx_dev, SD_CTL,
0, SD_CTL_DMA_START | SD_INT_MASK);
azx_dev->running = true;
}
EXPORT_SYMBOL_GPL(snd_hdac_stream_start);
/**
* snd_hdac_stream_clear - stop a stream DMA
* @azx_dev: HD-audio core stream to stop
*/
void snd_hdac_stream_clear(struct hdac_stream *azx_dev)
{
snd_hdac_stream_updateb(azx_dev, SD_CTL,
SD_CTL_DMA_START | SD_INT_MASK, 0);
snd_hdac_stream_writeb(azx_dev, SD_STS, SD_INT_MASK); /* to be sure */
azx_dev->running = false;
}
EXPORT_SYMBOL_GPL(snd_hdac_stream_clear);
/**
* snd_hdac_stream_stop - stop a stream
* @azx_dev: HD-audio core stream to stop
*
* Stop a stream DMA and disable stream interrupt
*/
void snd_hdac_stream_stop(struct hdac_stream *azx_dev)
{
snd_hdac_stream_clear(azx_dev);
/* disable SIE */
snd_hdac_chip_updatel(azx_dev->bus, INTCTL, 1 << azx_dev->index, 0);
}
EXPORT_SYMBOL_GPL(snd_hdac_stream_stop);
/**
* snd_hdac_stream_reset - reset a stream
* @azx_dev: HD-audio core stream to reset
*/
void snd_hdac_stream_reset(struct hdac_stream *azx_dev)
{
unsigned char val;
int timeout;
snd_hdac_stream_clear(azx_dev);
snd_hdac_stream_updateb(azx_dev, SD_CTL, 0, SD_CTL_STREAM_RESET);
udelay(3);
timeout = 300;
do {
val = snd_hdac_stream_readb(azx_dev, SD_CTL) &
SD_CTL_STREAM_RESET;
if (val)
break;
} while (--timeout);
val &= ~SD_CTL_STREAM_RESET;
snd_hdac_stream_writeb(azx_dev, SD_CTL, val);
udelay(3);
timeout = 300;
/* waiting for hardware to report that the stream is out of reset */
do {
val = snd_hdac_stream_readb(azx_dev, SD_CTL) &
SD_CTL_STREAM_RESET;
if (!val)
break;
} while (--timeout);
/* reset first position - may not be synced with hw at this time */
if (azx_dev->posbuf)
*azx_dev->posbuf = 0;
}
EXPORT_SYMBOL_GPL(snd_hdac_stream_reset);
/**
* snd_hdac_stream_setup - set up the SD for streaming
* @azx_dev: HD-audio core stream to set up
*/
int snd_hdac_stream_setup(struct hdac_stream *azx_dev)
{
struct hdac_bus *bus = azx_dev->bus;
struct snd_pcm_runtime *runtime = azx_dev->substream->runtime;
unsigned int val;
/* make sure the run bit is zero for SD */
snd_hdac_stream_clear(azx_dev);
/* program the stream_tag */
val = snd_hdac_stream_readl(azx_dev, SD_CTL);
val = (val & ~SD_CTL_STREAM_TAG_MASK) |
(azx_dev->stream_tag << SD_CTL_STREAM_TAG_SHIFT);
if (!bus->snoop)
val |= SD_CTL_TRAFFIC_PRIO;
snd_hdac_stream_writel(azx_dev, SD_CTL, val);
/* program the length of samples in cyclic buffer */
snd_hdac_stream_writel(azx_dev, SD_CBL, azx_dev->bufsize);
/* program the stream format */
/* this value needs to be the same as the one programmed */
snd_hdac_stream_writew(azx_dev, SD_FORMAT, azx_dev->format_val);
/* program the stream LVI (last valid index) of the BDL */
snd_hdac_stream_writew(azx_dev, SD_LVI, azx_dev->frags - 1);
/* program the BDL address */
/* lower BDL address */
snd_hdac_stream_writel(azx_dev, SD_BDLPL, (u32)azx_dev->bdl.addr);
/* upper BDL address */
snd_hdac_stream_writel(azx_dev, SD_BDLPU,
upper_32_bits(azx_dev->bdl.addr));
/* enable the position buffer */
if (bus->use_posbuf && bus->posbuf.addr) {
if (!(snd_hdac_chip_readl(bus, DPLBASE) & AZX_DPLBASE_ENABLE))
snd_hdac_chip_writel(bus, DPLBASE,
(u32)bus->posbuf.addr | AZX_DPLBASE_ENABLE);
}
/* set the interrupt enable bits in the descriptor control register */
snd_hdac_stream_updatel(azx_dev, SD_CTL, 0, SD_INT_MASK);
if (azx_dev->direction == SNDRV_PCM_STREAM_PLAYBACK)
azx_dev->fifo_size =
snd_hdac_stream_readw(azx_dev, SD_FIFOSIZE) + 1;
else
azx_dev->fifo_size = 0;
/* when LPIB delay correction gives a small negative value,
* we ignore it; currently set the threshold statically to
* 64 frames
*/
if (runtime->period_size > 64)
azx_dev->delay_negative_threshold =
-frames_to_bytes(runtime, 64);
else
azx_dev->delay_negative_threshold = 0;
/* wallclk has 24Mhz clock source */
azx_dev->period_wallclk = (((runtime->period_size * 24000) /
runtime->rate) * 1000);
return 0;
}
EXPORT_SYMBOL_GPL(snd_hdac_stream_setup);
/**
* snd_hdac_stream_cleanup - cleanup a stream
* @azx_dev: HD-audio core stream to clean up
*/
void snd_hdac_stream_cleanup(struct hdac_stream *azx_dev)
{
snd_hdac_stream_writel(azx_dev, SD_BDLPL, 0);
snd_hdac_stream_writel(azx_dev, SD_BDLPU, 0);
snd_hdac_stream_writel(azx_dev, SD_CTL, 0);
azx_dev->bufsize = 0;
azx_dev->period_bytes = 0;
azx_dev->format_val = 0;
}
EXPORT_SYMBOL_GPL(snd_hdac_stream_cleanup);
/**
* snd_hdac_stream_assign - assign a stream for the PCM
* @bus: HD-audio core bus
* @substream: PCM substream to assign
*
* Look for an unused stream for the given PCM substream, assign it
* and return the stream object. If no stream is free, returns NULL.
* The function tries to keep using the same stream object when it's used
* beforehand. Also, when bus->reverse_assign flag is set, the last free
* or matching entry is returned. This is needed for some strange codecs.
*/
struct hdac_stream *snd_hdac_stream_assign(struct hdac_bus *bus,
struct snd_pcm_substream *substream)
{
struct hdac_stream *azx_dev;
struct hdac_stream *res = NULL;
/* make a non-zero unique key for the substream */
int key = (substream->pcm->device << 16) | (substream->number << 2) |
(substream->stream + 1);
list_for_each_entry(azx_dev, &bus->stream_list, list) {
if (azx_dev->direction != substream->stream)
continue;
if (azx_dev->opened)
continue;
if (azx_dev->assigned_key == key) {
res = azx_dev;
break;
}
if (!res || bus->reverse_assign)
res = azx_dev;
}
if (res) {
spin_lock_irq(&bus->reg_lock);
res->opened = 1;
res->running = 0;
res->assigned_key = key;
res->substream = substream;
spin_unlock_irq(&bus->reg_lock);
}
return res;
}
EXPORT_SYMBOL_GPL(snd_hdac_stream_assign);
/**
* snd_hdac_stream_release - release the assigned stream
* @azx_dev: HD-audio core stream to release
*
* Release the stream that has been assigned by snd_hdac_stream_assign().
*/
void snd_hdac_stream_release(struct hdac_stream *azx_dev)
{
struct hdac_bus *bus = azx_dev->bus;
spin_lock_irq(&bus->reg_lock);
azx_dev->opened = 0;
azx_dev->running = 0;
azx_dev->substream = NULL;
spin_unlock_irq(&bus->reg_lock);
}
EXPORT_SYMBOL_GPL(snd_hdac_stream_release);
/*
* set up a BDL entry
*/
static int setup_bdle(struct hdac_bus *bus,
struct snd_dma_buffer *dmab,
struct hdac_stream *azx_dev, __le32 **bdlp,
int ofs, int size, int with_ioc)
{
__le32 *bdl = *bdlp;
while (size > 0) {
dma_addr_t addr;
int chunk;
if (azx_dev->frags >= AZX_MAX_BDL_ENTRIES)
return -EINVAL;
addr = snd_sgbuf_get_addr(dmab, ofs);
/* program the address field of the BDL entry */
bdl[0] = cpu_to_le32((u32)addr);
bdl[1] = cpu_to_le32(upper_32_bits(addr));
/* program the size field of the BDL entry */
chunk = snd_sgbuf_get_chunk_size(dmab, ofs, size);
/* one BDLE cannot cross 4K boundary on CTHDA chips */
if (bus->align_bdle_4k) {
u32 remain = 0x1000 - (ofs & 0xfff);
if (chunk > remain)
chunk = remain;
}
bdl[2] = cpu_to_le32(chunk);
/* program the IOC to enable interrupt
* only when the whole fragment is processed
*/
size -= chunk;
bdl[3] = (size || !with_ioc) ? 0 : cpu_to_le32(0x01);
bdl += 4;
azx_dev->frags++;
ofs += chunk;
}
*bdlp = bdl;
return ofs;
}
/**
* snd_hdac_stream_setup_periods - set up BDL entries
* @azx_dev: HD-audio core stream to set up
*
* Set up the buffer descriptor table of the given stream based on the
* period and buffer sizes of the assigned PCM substream.
*/
int snd_hdac_stream_setup_periods(struct hdac_stream *azx_dev)
{
struct hdac_bus *bus = azx_dev->bus;
struct snd_pcm_substream *substream = azx_dev->substream;
struct snd_pcm_runtime *runtime = substream->runtime;
__le32 *bdl;
int i, ofs, periods, period_bytes;
int pos_adj, pos_align;
/* reset BDL address */
snd_hdac_stream_writel(azx_dev, SD_BDLPL, 0);
snd_hdac_stream_writel(azx_dev, SD_BDLPU, 0);
period_bytes = azx_dev->period_bytes;
periods = azx_dev->bufsize / period_bytes;
/* program the initial BDL entries */
bdl = (__le32 *)azx_dev->bdl.area;
ofs = 0;
azx_dev->frags = 0;
pos_adj = bus->bdl_pos_adj;
if (!azx_dev->no_period_wakeup && pos_adj > 0) {
pos_align = pos_adj;
pos_adj = (pos_adj * runtime->rate + 47999) / 48000;
if (!pos_adj)
pos_adj = pos_align;
else
pos_adj = ((pos_adj + pos_align - 1) / pos_align) *
pos_align;
pos_adj = frames_to_bytes(runtime, pos_adj);
if (pos_adj >= period_bytes) {
dev_warn(bus->dev, "Too big adjustment %d\n",
pos_adj);
pos_adj = 0;
} else {
ofs = setup_bdle(bus, snd_pcm_get_dma_buf(substream),
azx_dev,
&bdl, ofs, pos_adj, true);
if (ofs < 0)
goto error;
}
} else
pos_adj = 0;
for (i = 0; i < periods; i++) {
if (i == periods - 1 && pos_adj)
ofs = setup_bdle(bus, snd_pcm_get_dma_buf(substream),
azx_dev, &bdl, ofs,
period_bytes - pos_adj, 0);
else
ofs = setup_bdle(bus, snd_pcm_get_dma_buf(substream),
azx_dev, &bdl, ofs,
period_bytes,
!azx_dev->no_period_wakeup);
if (ofs < 0)
goto error;
}
return 0;
error:
dev_err(bus->dev, "Too many BDL entries: buffer=%d, period=%d\n",
azx_dev->bufsize, period_bytes);
return -EINVAL;
}
EXPORT_SYMBOL_GPL(snd_hdac_stream_setup_periods);
/* snd_hdac_stream_set_params - set stream parameters
* @azx_dev: HD-audio core stream for which parameters are to be set
* @format_val: format value parameter
*
* Setup the HD-audio core stream parameters from substream of the stream
* and passed format value
*/
int snd_hdac_stream_set_params(struct hdac_stream *azx_dev,
unsigned int format_val)
{
unsigned int bufsize, period_bytes;
struct snd_pcm_substream *substream = azx_dev->substream;
struct snd_pcm_runtime *runtime;
int err;
if (!substream)
return -EINVAL;
runtime = substream->runtime;
bufsize = snd_pcm_lib_buffer_bytes(substream);
period_bytes = snd_pcm_lib_period_bytes(substream);
if (bufsize != azx_dev->bufsize ||
period_bytes != azx_dev->period_bytes ||
format_val != azx_dev->format_val ||
runtime->no_period_wakeup != azx_dev->no_period_wakeup) {
azx_dev->bufsize = bufsize;
azx_dev->period_bytes = period_bytes;
azx_dev->format_val = format_val;
azx_dev->no_period_wakeup = runtime->no_period_wakeup;
err = snd_hdac_stream_setup_periods(azx_dev);
if (err < 0)
return err;
}
return 0;
}
EXPORT_SYMBOL_GPL(snd_hdac_stream_set_params);
static cycle_t azx_cc_read(const struct cyclecounter *cc)
{
struct hdac_stream *azx_dev = container_of(cc, struct hdac_stream, cc);
return snd_hdac_chip_readl(azx_dev->bus, WALLCLK);
}
static void azx_timecounter_init(struct hdac_stream *azx_dev,
bool force, cycle_t last)
{
struct timecounter *tc = &azx_dev->tc;
struct cyclecounter *cc = &azx_dev->cc;
u64 nsec;
cc->read = azx_cc_read;
cc->mask = CLOCKSOURCE_MASK(32);
/*
* Converting from 24 MHz to ns means applying a 125/3 factor.
* To avoid any saturation issues in intermediate operations,
* the 125 factor is applied first. The division is applied
* last after reading the timecounter value.
* Applying the 1/3 factor as part of the multiplication
* requires at least 20 bits for a decent precision, however
* overflows occur after about 4 hours or less, not a option.
*/
cc->mult = 125; /* saturation after 195 years */
cc->shift = 0;
nsec = 0; /* audio time is elapsed time since trigger */
timecounter_init(tc, cc, nsec);
if (force) {
/*
* force timecounter to use predefined value,
* used for synchronized starts
*/
tc->cycle_last = last;
}
}
/**
* snd_hdac_stream_timecounter_init - initialize time counter
* @azx_dev: HD-audio core stream (master stream)
* @streams: bit flags of streams to set up
*
* Initializes the time counter of streams marked by the bit flags (each
* bit corresponds to the stream index).
* The trigger timestamp of PCM substream assigned to the given stream is
* updated accordingly, too.
*/
void snd_hdac_stream_timecounter_init(struct hdac_stream *azx_dev,
unsigned int streams)
{
struct hdac_bus *bus = azx_dev->bus;
struct snd_pcm_runtime *runtime = azx_dev->substream->runtime;
struct hdac_stream *s;
bool inited = false;
cycle_t cycle_last = 0;
int i = 0;
list_for_each_entry(s, &bus->stream_list, list) {
if (streams & (1 << i)) {
azx_timecounter_init(s, inited, cycle_last);
if (!inited) {
inited = true;
cycle_last = s->tc.cycle_last;
}
}
i++;
}
snd_pcm_gettime(runtime, &runtime->trigger_tstamp);
runtime->trigger_tstamp_latched = true;
}
EXPORT_SYMBOL_GPL(snd_hdac_stream_timecounter_init);
/**
* snd_hdac_stream_sync_trigger - turn on/off stream sync register
* @azx_dev: HD-audio core stream (master stream)
* @streams: bit flags of streams to sync
*/
void snd_hdac_stream_sync_trigger(struct hdac_stream *azx_dev, bool set,
unsigned int streams, unsigned int reg)
{
struct hdac_bus *bus = azx_dev->bus;
unsigned int val;
if (!reg)
reg = AZX_REG_SSYNC;
val = _snd_hdac_chip_read(l, bus, reg);
if (set)
val |= streams;
else
val &= ~streams;
_snd_hdac_chip_write(l, bus, reg, val);
}
EXPORT_SYMBOL_GPL(snd_hdac_stream_sync_trigger);
/**
* snd_hdac_stream_sync - sync with start/strop trigger operation
* @azx_dev: HD-audio core stream (master stream)
* @start: true = start, false = stop
* @streams: bit flags of streams to sync
*
* For @start = true, wait until all FIFOs get ready.
* For @start = false, wait until all RUN bits are cleared.
*/
void snd_hdac_stream_sync(struct hdac_stream *azx_dev, bool start,
unsigned int streams)
{
struct hdac_bus *bus = azx_dev->bus;
int i, nwait, timeout;
struct hdac_stream *s;
for (timeout = 5000; timeout; timeout--) {
nwait = 0;
i = 0;
list_for_each_entry(s, &bus->stream_list, list) {
if (streams & (1 << i)) {
if (start) {
/* check FIFO gets ready */
if (!(snd_hdac_stream_readb(s, SD_STS) &
SD_STS_FIFO_READY))
nwait++;
} else {
/* check RUN bit is cleared */
if (snd_hdac_stream_readb(s, SD_CTL) &
SD_CTL_DMA_START)
nwait++;
}
}
i++;
}
if (!nwait)
break;
cpu_relax();
}
}
EXPORT_SYMBOL_GPL(snd_hdac_stream_sync);
#ifdef CONFIG_SND_HDA_DSP_LOADER
/**
* snd_hdac_dsp_prepare - prepare for DSP loading
* @azx_dev: HD-audio core stream used for DSP loading
* @format: HD-audio stream format
* @byte_size: data chunk byte size
* @bufp: allocated buffer
*
* Allocate the buffer for the given size and set up the given stream for
* DSP loading. Returns the stream tag (>= 0), or a negative error code.
*/
int snd_hdac_dsp_prepare(struct hdac_stream *azx_dev, unsigned int format,
unsigned int byte_size, struct snd_dma_buffer *bufp)
{
struct hdac_bus *bus = azx_dev->bus;
u32 *bdl;
int err;
snd_hdac_dsp_lock(azx_dev);
spin_lock_irq(&bus->reg_lock);
if (azx_dev->running || azx_dev->locked) {
spin_unlock_irq(&bus->reg_lock);
err = -EBUSY;
goto unlock;
}
azx_dev->locked = true;
spin_unlock_irq(&bus->reg_lock);
err = bus->io_ops->dma_alloc_pages(bus, SNDRV_DMA_TYPE_DEV_SG,
byte_size, bufp);
if (err < 0)
goto err_alloc;
azx_dev->bufsize = byte_size;
azx_dev->period_bytes = byte_size;
azx_dev->format_val = format;
snd_hdac_stream_reset(azx_dev);
/* reset BDL address */
snd_hdac_stream_writel(azx_dev, SD_BDLPL, 0);
snd_hdac_stream_writel(azx_dev, SD_BDLPU, 0);
azx_dev->frags = 0;
bdl = (u32 *)azx_dev->bdl.area;
err = setup_bdle(bus, bufp, azx_dev, &bdl, 0, byte_size, 0);
if (err < 0)
goto error;
snd_hdac_stream_setup(azx_dev);
snd_hdac_dsp_unlock(azx_dev);
return azx_dev->stream_tag;
error:
bus->io_ops->dma_free_pages(bus, bufp);
err_alloc:
spin_lock_irq(&bus->reg_lock);
azx_dev->locked = false;
spin_unlock_irq(&bus->reg_lock);
unlock:
snd_hdac_dsp_unlock(azx_dev);
return err;
}
EXPORT_SYMBOL_GPL(snd_hdac_dsp_prepare);
/**
* snd_hdac_dsp_trigger - start / stop DSP loading
* @azx_dev: HD-audio core stream used for DSP loading
* @start: trigger start or stop
*/
void snd_hdac_dsp_trigger(struct hdac_stream *azx_dev, bool start)
{
if (start)
snd_hdac_stream_start(azx_dev, true);
else
snd_hdac_stream_stop(azx_dev);
}
EXPORT_SYMBOL_GPL(snd_hdac_dsp_trigger);
/**
* snd_hdac_dsp_cleanup - clean up the stream from DSP loading to normal
* @azx_dev: HD-audio core stream used for DSP loading
* @dmab: buffer used by DSP loading
*/
void snd_hdac_dsp_cleanup(struct hdac_stream *azx_dev,
struct snd_dma_buffer *dmab)
{
struct hdac_bus *bus = azx_dev->bus;
if (!dmab->area || !azx_dev->locked)
return;
snd_hdac_dsp_lock(azx_dev);
/* reset BDL address */
snd_hdac_stream_writel(azx_dev, SD_BDLPL, 0);
snd_hdac_stream_writel(azx_dev, SD_BDLPU, 0);
snd_hdac_stream_writel(azx_dev, SD_CTL, 0);
azx_dev->bufsize = 0;
azx_dev->period_bytes = 0;
azx_dev->format_val = 0;
bus->io_ops->dma_free_pages(bus, dmab);
dmab->area = NULL;
spin_lock_irq(&bus->reg_lock);
azx_dev->locked = false;
spin_unlock_irq(&bus->reg_lock);
snd_hdac_dsp_unlock(azx_dev);
}
EXPORT_SYMBOL_GPL(snd_hdac_dsp_cleanup);
#endif /* CONFIG_SND_HDA_DSP_LOADER */
sound/pci/hda/Kconfig
浏览文件 @ 8ab418d3
......@@ -38,9 +38,6 @@ config SND_HDA_TEGRA
if SND_HDA
config SND_HDA_DSP_LOADER
bool
config SND_HDA_PREALLOC_SIZE
int "Pre-allocated buffer size for HD-audio driver"
range 0 32768
......
sound/pci/hda/Makefile
浏览文件 @ 8ab418d3
snd-hda-intel-objs := hda_intel.o
snd-hda-controller-objs := hda_controller.o
snd-hda-tegra-objs := hda_tegra.o
# for haswell power well
snd-hda-intel-$(CONFIG_SND_HDA_I915) += hda_i915.o
snd-hda-codec-y := hda_bind.o hda_codec.o hda_jack.o hda_auto_parser.o hda_sysfs.o
snd-hda-codec-y += hda_controller.o
snd-hda-codec-$(CONFIG_PROC_FS) += hda_proc.o
snd-hda-codec-$(CONFIG_SND_HDA_HWDEP) += hda_hwdep.o
snd-hda-codec-$(CONFIG_SND_HDA_INPUT_BEEP) += hda_beep.o
......@@ -27,7 +27,6 @@ snd-hda-codec-hdmi-objs := patch_hdmi.o hda_eld.o
# common driver
obj-$(CONFIG_SND_HDA) := snd-hda-codec.o
obj-$(CONFIG_SND_HDA) += snd-hda-controller.o
# codec drivers
obj-$(CONFIG_SND_HDA_GENERIC) += snd-hda-codec-generic.o
......
sound/pci/hda/hda_codec.c
浏览文件 @ 8ab418d3
......@@ -146,11 +146,11 @@ static int codec_exec_verb(struct hdac_device *dev, unsigned int cmd,
bus->no_response_fallback = 0;
mutex_unlock(&bus->core.cmd_mutex);
snd_hda_power_down_pm(codec);
if (!codec_in_pm(codec) && res && err < 0 && bus->rirb_error) {
if (!codec_in_pm(codec) && res && err == -EAGAIN) {
if (bus->response_reset) {
codec_dbg(codec,
"resetting BUS due to fatal communication error\n");
bus->ops.bus_reset(bus);
snd_hda_bus_reset(bus);
}
goto again;
}
......@@ -436,9 +436,8 @@ static unsigned int get_num_devices(struct hda_codec *codec, hda_nid_t nid)
get_wcaps_type(wcaps) != AC_WID_PIN)
return 0;
parm = snd_hda_param_read(codec, nid, AC_PAR_DEVLIST_LEN);
if (parm == -1 && codec->bus->rirb_error)
parm = 0;
if (_snd_hdac_read_parm(&codec->core, nid, AC_PAR_DEVLIST_LEN, &parm))
return 0; /* error */
return parm & AC_DEV_LIST_LEN_MASK;
}
......@@ -467,10 +466,9 @@ int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid,
devices = 0;
while (devices < dev_len) {
parm = snd_hda_codec_read(codec, nid, 0,
AC_VERB_GET_DEVICE_LIST, devices);
if (parm == -1 && codec->bus->rirb_error)
break;
if (snd_hdac_read(&codec->core, nid,
AC_VERB_GET_DEVICE_LIST, devices, &parm))
break; /* error */
for (i = 0; i < 8; i++) {
dev_list[devices] = (u8)parm;
......@@ -483,96 +481,6 @@ int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid,
return devices;
}
/*
* destructor
*/
static void snd_hda_bus_free(struct hda_bus *bus)
{
if (!bus)
return;
if (bus->ops.private_free)
bus->ops.private_free(bus);
snd_hdac_bus_exit(&bus->core);
kfree(bus);
}
static int snd_hda_bus_dev_free(struct snd_device *device)
{
snd_hda_bus_free(device->device_data);
return 0;
}
static int snd_hda_bus_dev_disconnect(struct snd_device *device)
{
struct hda_bus *bus = device->device_data;
bus->shutdown = 1;
return 0;
}
/* hdac_bus_ops translations */
static int _hda_bus_command(struct hdac_bus *_bus, unsigned int cmd)
{
struct hda_bus *bus = container_of(_bus, struct hda_bus, core);
return bus->ops.command(bus, cmd);
}
static int _hda_bus_get_response(struct hdac_bus *_bus, unsigned int addr,
unsigned int *res)
{
struct hda_bus *bus = container_of(_bus, struct hda_bus, core);
*res = bus->ops.get_response(bus, addr);
return bus->rirb_error ? -EIO : 0;
}
static const struct hdac_bus_ops bus_ops = {
.command = _hda_bus_command,
.get_response = _hda_bus_get_response,
};
/**
* snd_hda_bus_new - create a HDA bus
* @card: the card entry
* @busp: the pointer to store the created bus instance
*
* Returns 0 if successful, or a negative error code.
*/
int snd_hda_bus_new(struct snd_card *card,
struct hda_bus **busp)
{
struct hda_bus *bus;
int err;
static struct snd_device_ops dev_ops = {
.dev_disconnect = snd_hda_bus_dev_disconnect,
.dev_free = snd_hda_bus_dev_free,
};
if (busp)
*busp = NULL;
bus = kzalloc(sizeof(*bus), GFP_KERNEL);
if (!bus)
return -ENOMEM;
err = snd_hdac_bus_init(&bus->core, card->dev, &bus_ops);
if (err < 0) {
kfree(bus);
return err;
}
bus->card = card;
mutex_init(&bus->prepare_mutex);
err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops);
if (err < 0) {
snd_hda_bus_free(bus);
return err;
}
if (busp)
*busp = bus;
return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_bus_new);
/*
* read widget caps for each widget and store in cache
*/
......@@ -3283,311 +3191,6 @@ int snd_hda_codec_build_controls(struct hda_codec *codec)
return 0;
}
/*
* stream formats
*/
struct hda_rate_tbl {
unsigned int hz;
unsigned int alsa_bits;
unsigned int hda_fmt;
};
/* rate = base * mult / div */
#define HDA_RATE(base, mult, div) \
(AC_FMT_BASE_##base##K | (((mult) - 1) << AC_FMT_MULT_SHIFT) | \
(((div) - 1) << AC_FMT_DIV_SHIFT))
static struct hda_rate_tbl rate_bits[] = {
/* rate in Hz, ALSA rate bitmask, HDA format value */
/* autodetected value used in snd_hda_query_supported_pcm */
{ 8000, SNDRV_PCM_RATE_8000, HDA_RATE(48, 1, 6) },
{ 11025, SNDRV_PCM_RATE_11025, HDA_RATE(44, 1, 4) },
{ 16000, SNDRV_PCM_RATE_16000, HDA_RATE(48, 1, 3) },
{ 22050, SNDRV_PCM_RATE_22050, HDA_RATE(44, 1, 2) },
{ 32000, SNDRV_PCM_RATE_32000, HDA_RATE(48, 2, 3) },
{ 44100, SNDRV_PCM_RATE_44100, HDA_RATE(44, 1, 1) },
{ 48000, SNDRV_PCM_RATE_48000, HDA_RATE(48, 1, 1) },
{ 88200, SNDRV_PCM_RATE_88200, HDA_RATE(44, 2, 1) },
{ 96000, SNDRV_PCM_RATE_96000, HDA_RATE(48, 2, 1) },
{ 176400, SNDRV_PCM_RATE_176400, HDA_RATE(44, 4, 1) },
{ 192000, SNDRV_PCM_RATE_192000, HDA_RATE(48, 4, 1) },
#define AC_PAR_PCM_RATE_BITS 11
/* up to bits 10, 384kHZ isn't supported properly */
/* not autodetected value */
{ 9600, SNDRV_PCM_RATE_KNOT, HDA_RATE(48, 1, 5) },
{ 0 } /* terminator */
};
/**
* snd_hda_calc_stream_format - calculate format bitset
* @codec: HD-audio codec
* @rate: the sample rate
* @channels: the number of channels
* @format: the PCM format (SNDRV_PCM_FORMAT_XXX)
* @maxbps: the max. bps
* @spdif_ctls: HD-audio SPDIF status bits (0 if irrelevant)
*
* Calculate the format bitset from the given rate, channels and th PCM format.
*
* Return zero if invalid.
*/
unsigned int snd_hda_calc_stream_format(struct hda_codec *codec,
unsigned int rate,
unsigned int channels,
unsigned int format,
unsigned int maxbps,
unsigned short spdif_ctls)
{
int i;
unsigned int val = 0;
for (i = 0; rate_bits[i].hz; i++)
if (rate_bits[i].hz == rate) {
val = rate_bits[i].hda_fmt;
break;
}
if (!rate_bits[i].hz) {
codec_dbg(codec, "invalid rate %d\n", rate);
return 0;
}
if (channels == 0 || channels > 8) {
codec_dbg(codec, "invalid channels %d\n", channels);
return 0;
}
val |= channels - 1;
switch (snd_pcm_format_width(format)) {
case 8:
val |= AC_FMT_BITS_8;
break;
case 16:
val |= AC_FMT_BITS_16;
break;
case 20:
case 24:
case 32:
if (maxbps >= 32 || format == SNDRV_PCM_FORMAT_FLOAT_LE)
val |= AC_FMT_BITS_32;
else if (maxbps >= 24)
val |= AC_FMT_BITS_24;
else
val |= AC_FMT_BITS_20;
break;
default:
codec_dbg(codec, "invalid format width %d\n",
snd_pcm_format_width(format));
return 0;
}
if (spdif_ctls & AC_DIG1_NONAUDIO)
val |= AC_FMT_TYPE_NON_PCM;
return val;
}
EXPORT_SYMBOL_GPL(snd_hda_calc_stream_format);
static unsigned int query_pcm_param(struct hda_codec *codec, hda_nid_t nid)
{
unsigned int val = 0;
if (nid != codec->core.afg &&
(get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD))
val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
if (!val || val == -1)
val = snd_hda_param_read(codec, codec->core.afg, AC_PAR_PCM);
if (!val || val == -1)
return 0;
return val;
}
static unsigned int query_stream_param(struct hda_codec *codec, hda_nid_t nid)
{
unsigned int streams = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
if (!streams || streams == -1)
streams = snd_hda_param_read(codec, codec->core.afg, AC_PAR_STREAM);
if (!streams || streams == -1)
return 0;
return streams;
}
/**
* snd_hda_query_supported_pcm - query the supported PCM rates and formats
* @codec: the HDA codec
* @nid: NID to query
* @ratesp: the pointer to store the detected rate bitflags
* @formatsp: the pointer to store the detected formats
* @bpsp: the pointer to store the detected format widths
*
* Queries the supported PCM rates and formats. The NULL @ratesp, @formatsp
* or @bsps argument is ignored.
*
* Returns 0 if successful, otherwise a negative error code.
*/
int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
u32 *ratesp, u64 *formatsp, unsigned int *bpsp)
{
unsigned int i, val, wcaps;
wcaps = get_wcaps(codec, nid);
val = query_pcm_param(codec, nid);
if (ratesp) {
u32 rates = 0;
for (i = 0; i < AC_PAR_PCM_RATE_BITS; i++) {
if (val & (1 << i))
rates |= rate_bits[i].alsa_bits;
}
if (rates == 0) {
codec_err(codec,
"rates == 0 (nid=0x%x, val=0x%x, ovrd=%i)\n",
nid, val,
(wcaps & AC_WCAP_FORMAT_OVRD) ? 1 : 0);
return -EIO;
}
*ratesp = rates;
}
if (formatsp || bpsp) {
u64 formats = 0;
unsigned int streams, bps;
streams = query_stream_param(codec, nid);
if (!streams)
return -EIO;
bps = 0;
if (streams & AC_SUPFMT_PCM) {
if (val & AC_SUPPCM_BITS_8) {
formats |= SNDRV_PCM_FMTBIT_U8;
bps = 8;
}
if (val & AC_SUPPCM_BITS_16) {
formats |= SNDRV_PCM_FMTBIT_S16_LE;
bps = 16;
}
if (wcaps & AC_WCAP_DIGITAL) {
if (val & AC_SUPPCM_BITS_32)
formats |= SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE;
if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24))
formats |= SNDRV_PCM_FMTBIT_S32_LE;
if (val & AC_SUPPCM_BITS_24)
bps = 24;
else if (val & AC_SUPPCM_BITS_20)
bps = 20;
} else if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24|
AC_SUPPCM_BITS_32)) {
formats |= SNDRV_PCM_FMTBIT_S32_LE;
if (val & AC_SUPPCM_BITS_32)
bps = 32;
else if (val & AC_SUPPCM_BITS_24)
bps = 24;
else if (val & AC_SUPPCM_BITS_20)
bps = 20;
}
}
#if 0 /* FIXME: CS4206 doesn't work, which is the only codec supporting float */
if (streams & AC_SUPFMT_FLOAT32) {
formats |= SNDRV_PCM_FMTBIT_FLOAT_LE;
if (!bps)
bps = 32;
}
#endif
if (streams == AC_SUPFMT_AC3) {
/* should be exclusive */
/* temporary hack: we have still no proper support
* for the direct AC3 stream...
*/
formats |= SNDRV_PCM_FMTBIT_U8;
bps = 8;
}
if (formats == 0) {
codec_err(codec,
"formats == 0 (nid=0x%x, val=0x%x, ovrd=%i, streams=0x%x)\n",
nid, val,
(wcaps & AC_WCAP_FORMAT_OVRD) ? 1 : 0,
streams);
return -EIO;
}
if (formatsp)
*formatsp = formats;
if (bpsp)
*bpsp = bps;
}
return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_query_supported_pcm);
/**
* snd_hda_is_supported_format - Check the validity of the format
* @codec: HD-audio codec
* @nid: NID to check
* @format: the HD-audio format value to check
*
* Check whether the given node supports the format value.
*
* Returns 1 if supported, 0 if not.
*/
int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
unsigned int format)
{
int i;
unsigned int val = 0, rate, stream;
val = query_pcm_param(codec, nid);
if (!val)
return 0;
rate = format & 0xff00;
for (i = 0; i < AC_PAR_PCM_RATE_BITS; i++)
if (rate_bits[i].hda_fmt == rate) {
if (val & (1 << i))
break;
return 0;
}
if (i >= AC_PAR_PCM_RATE_BITS)
return 0;
stream = query_stream_param(codec, nid);
if (!stream)
return 0;
if (stream & AC_SUPFMT_PCM) {
switch (format & 0xf0) {
case 0x00:
if (!(val & AC_SUPPCM_BITS_8))
return 0;
break;
case 0x10:
if (!(val & AC_SUPPCM_BITS_16))
return 0;
break;
case 0x20:
if (!(val & AC_SUPPCM_BITS_20))
return 0;
break;
case 0x30:
if (!(val & AC_SUPPCM_BITS_24))
return 0;
break;
case 0x40:
if (!(val & AC_SUPPCM_BITS_32))
return 0;
break;
default:
return 0;
}
} else {
/* FIXME: check for float32 and AC3? */
}
return 1;
}
EXPORT_SYMBOL_GPL(snd_hda_is_supported_format);
/*
* PCM stuff
*/
......@@ -3800,9 +3403,6 @@ int snd_hda_codec_build_pcms(struct hda_codec *codec)
struct hda_pcm *cpcm;
int dev, err;
if (snd_BUG_ON(!bus->ops.attach_pcm))
return -EINVAL;
err = snd_hda_codec_parse_pcms(codec);
if (err < 0) {
snd_hda_codec_reset(codec);
......@@ -3820,7 +3420,7 @@ int snd_hda_codec_build_pcms(struct hda_codec *codec)
if (dev < 0)
continue; /* no fatal error */
cpcm->device = dev;
err = bus->ops.attach_pcm(bus, codec, cpcm);
err = snd_hda_attach_pcm_stream(bus, codec, cpcm);
if (err < 0) {
codec_err(codec,
"cannot attach PCM stream %d for codec #%d\n",
......@@ -4490,10 +4090,10 @@ int snd_hda_add_imux_item(struct hda_codec *codec,
EXPORT_SYMBOL_GPL(snd_hda_add_imux_item);
/**
* snd_hda_bus_reset - Reset the bus
* snd_hda_bus_reset_codecs - Reset the bus
* @bus: HD-audio bus
*/
void snd_hda_bus_reset(struct hda_bus *bus)
void snd_hda_bus_reset_codecs(struct hda_bus *bus)
{
struct hda_codec *codec;
......@@ -4508,7 +4108,6 @@ void snd_hda_bus_reset(struct hda_bus *bus)
#endif
}
}
EXPORT_SYMBOL_GPL(snd_hda_bus_reset);
/**
* snd_print_pcm_bits - Print the supported PCM fmt bits to the string buffer
......
sound/pci/hda/hda_codec.h
浏览文件 @ 8ab418d3
......@@ -40,32 +40,6 @@ struct hda_codec;
struct hda_pcm;
struct hda_pcm_stream;
/* bus operators */
struct hda_bus_ops {
/* send a single command */
int (*command)(struct hda_bus *bus, unsigned int cmd);
/* get a response from the last command */
unsigned int (*get_response)(struct hda_bus *bus, unsigned int addr);
/* free the private data */
void (*private_free)(struct hda_bus *);
/* attach a PCM stream */
int (*attach_pcm)(struct hda_bus *bus, struct hda_codec *codec,
struct hda_pcm *pcm);
/* reset bus for retry verb */
void (*bus_reset)(struct hda_bus *bus);
#ifdef CONFIG_SND_HDA_DSP_LOADER
/* prepare DSP transfer */
int (*load_dsp_prepare)(struct hda_bus *bus, unsigned int format,
unsigned int byte_size,
struct snd_dma_buffer *bufp);
/* start/stop DSP transfer */
void (*load_dsp_trigger)(struct hda_bus *bus, bool start);
/* clean up DSP transfer */
void (*load_dsp_cleanup)(struct hda_bus *bus,
struct snd_dma_buffer *dmab);
#endif
};
/*
* codec bus
*
......@@ -77,10 +51,8 @@ struct hda_bus {
struct snd_card *card;
void *private_data;
struct pci_dev *pci;
const char *modelname;
struct hda_bus_ops ops;
struct mutex prepare_mutex;
......@@ -92,7 +64,6 @@ struct hda_bus {
unsigned int allow_bus_reset:1; /* allow bus reset at fatal error */
/* status for codec/controller */
unsigned int shutdown :1; /* being unloaded */
unsigned int rirb_error:1; /* error in codec communication */
unsigned int response_reset:1; /* controller was reset */
unsigned int in_reset:1; /* during reset operation */
unsigned int no_response_fallback:1; /* don't fallback at RIRB error */
......@@ -100,6 +71,9 @@ struct hda_bus {
int primary_dig_out_type; /* primary digital out PCM type */
};
/* from hdac_bus to hda_bus */
#define to_hda_bus(bus) container_of(bus, struct hda_bus, core)
/*
* codec preset
*
......@@ -328,7 +302,10 @@ struct hda_codec {
/*
* constructors
*/
int snd_hda_bus_new(struct snd_card *card, struct hda_bus **busp);
int snd_hda_bus_new(struct snd_card *card,
const struct hdac_bus_ops *ops,
const struct hdac_io_ops *io_ops,
struct hda_bus **busp);
int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
unsigned int codec_addr, struct hda_codec **codecp);
int snd_hda_codec_configure(struct hda_codec *codec);
......@@ -367,8 +344,6 @@ int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux,
hda_nid_t nid, int recursive);
int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid,
u8 *dev_list, int max_devices);
int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
u32 *ratesp, u64 *formatsp, unsigned int *bpsp);
struct hda_verb {
hda_nid_t nid;
......@@ -460,17 +435,17 @@ void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid,
int do_now);
#define snd_hda_codec_cleanup_stream(codec, nid) \
__snd_hda_codec_cleanup_stream(codec, nid, 0)
unsigned int snd_hda_calc_stream_format(struct hda_codec *codec,
unsigned int rate,
unsigned int channels,
unsigned int format,
unsigned int maxbps,
unsigned short spdif_ctls);
int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
unsigned int format);
#define snd_hda_query_supported_pcm(codec, nid, ratesp, fmtsp, bpsp) \
snd_hdac_query_supported_pcm(&(codec)->core, nid, ratesp, fmtsp, bpsp)
#define snd_hda_is_supported_format(codec, nid, fmt) \
snd_hdac_is_supported_format(&(codec)->core, nid, fmt)
extern const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[];
int snd_hda_attach_pcm_stream(struct hda_bus *_bus, struct hda_codec *codec,
struct hda_pcm *cpcm);
/*
* Misc
*/
......@@ -481,6 +456,7 @@ void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
int snd_hda_lock_devices(struct hda_bus *bus);
void snd_hda_unlock_devices(struct hda_bus *bus);
void snd_hda_bus_reset(struct hda_bus *bus);
void snd_hda_bus_reset_codecs(struct hda_bus *bus);
/*
* power management
......@@ -526,24 +502,12 @@ int snd_hda_load_patch(struct hda_bus *bus, size_t size, const void *buf);
#endif
#ifdef CONFIG_SND_HDA_DSP_LOADER
static inline int
snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
unsigned int size,
struct snd_dma_buffer *bufp)
{
return codec->bus->ops.load_dsp_prepare(codec->bus, format, size, bufp);
}
static inline void
snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start)
{
return codec->bus->ops.load_dsp_trigger(codec->bus, start);
}
static inline void
snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
struct snd_dma_buffer *dmab)
{
return codec->bus->ops.load_dsp_cleanup(codec->bus, dmab);
}
int snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
unsigned int size,
struct snd_dma_buffer *bufp);
void snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start);
void snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
struct snd_dma_buffer *dmab);
#else
static inline int
snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
......
sound/pci/hda/hda_controller.c
浏览文件 @ 8ab418d3
此差异已折叠。
sound/pci/hda/hda_controller.h
浏览文件 @ 8ab418d3
......@@ -21,135 +21,10 @@
#include <sound/pcm.h>
#include <sound/initval.h>
#include "hda_codec.h"
#include <sound/hda_register.h>
/*
* registers
*/
#define AZX_REG_GCAP 0x00
#define AZX_GCAP_64OK (1 << 0) /* 64bit address support */
#define AZX_GCAP_NSDO (3 << 1) /* # of serial data out signals */
#define AZX_GCAP_BSS (31 << 3) /* # of bidirectional streams */
#define AZX_GCAP_ISS (15 << 8) /* # of input streams */
#define AZX_GCAP_OSS (15 << 12) /* # of output streams */
#define AZX_REG_VMIN 0x02
#define AZX_REG_VMAJ 0x03
#define AZX_REG_OUTPAY 0x04
#define AZX_REG_INPAY 0x06
#define AZX_REG_GCTL 0x08
#define AZX_GCTL_RESET (1 << 0) /* controller reset */
#define AZX_GCTL_FCNTRL (1 << 1) /* flush control */
#define AZX_GCTL_UNSOL (1 << 8) /* accept unsol. response enable */
#define AZX_REG_WAKEEN 0x0c
#define AZX_REG_STATESTS 0x0e
#define AZX_REG_GSTS 0x10
#define AZX_GSTS_FSTS (1 << 1) /* flush status */
#define AZX_REG_INTCTL 0x20
#define AZX_REG_INTSTS 0x24
#define AZX_REG_WALLCLK 0x30 /* 24Mhz source */
#define AZX_REG_OLD_SSYNC 0x34 /* SSYNC for old ICH */
#define AZX_REG_SSYNC 0x38
#define AZX_REG_CORBLBASE 0x40
#define AZX_REG_CORBUBASE 0x44
#define AZX_REG_CORBWP 0x48
#define AZX_REG_CORBRP 0x4a
#define AZX_CORBRP_RST (1 << 15) /* read pointer reset */
#define AZX_REG_CORBCTL 0x4c
#define AZX_CORBCTL_RUN (1 << 1) /* enable DMA */
#define AZX_CORBCTL_CMEIE (1 << 0) /* enable memory error irq */
#define AZX_REG_CORBSTS 0x4d
#define AZX_CORBSTS_CMEI (1 << 0) /* memory error indication */
#define AZX_REG_CORBSIZE 0x4e
#define AZX_REG_RIRBLBASE 0x50
#define AZX_REG_RIRBUBASE 0x54
#define AZX_REG_RIRBWP 0x58
#define AZX_RIRBWP_RST (1 << 15) /* write pointer reset */
#define AZX_REG_RINTCNT 0x5a
#define AZX_REG_RIRBCTL 0x5c
#define AZX_RBCTL_IRQ_EN (1 << 0) /* enable IRQ */
#define AZX_RBCTL_DMA_EN (1 << 1) /* enable DMA */
#define AZX_RBCTL_OVERRUN_EN (1 << 2) /* enable overrun irq */
#define AZX_REG_RIRBSTS 0x5d
#define AZX_RBSTS_IRQ (1 << 0) /* response irq */
#define AZX_RBSTS_OVERRUN (1 << 2) /* overrun irq */
#define AZX_REG_RIRBSIZE 0x5e
#define AZX_REG_IC 0x60
#define AZX_REG_IR 0x64
#define AZX_REG_IRS 0x68
#define AZX_IRS_VALID (1<<1)
#define AZX_IRS_BUSY (1<<0)
#define AZX_REG_DPLBASE 0x70
#define AZX_REG_DPUBASE 0x74
#define AZX_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 AZX_REG_SD_CTL 0x00
#define AZX_REG_SD_STS 0x03
#define AZX_REG_SD_LPIB 0x04
#define AZX_REG_SD_CBL 0x08
#define AZX_REG_SD_LVI 0x0c
#define AZX_REG_SD_FIFOW 0x0e
#define AZX_REG_SD_FIFOSIZE 0x10
#define AZX_REG_SD_FORMAT 0x12
#define AZX_REG_SD_BDLPL 0x18
#define AZX_REG_SD_BDLPU 0x1c
/* PCI space */
#define AZX_PCIREG_TCSEL 0x44
/*
* other constants
*/
/* 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)
/* 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: S3,SD2,SD1,SD0 */
#define AZX_MAX_CODECS 8
#define AZX_MAX_CODECS HDA_MAX_CODECS
#define AZX_DEFAULT_CODECS 4
#define STATESTS_INT_MASK ((1 << AZX_MAX_CODECS) - 1)
/* 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 AZX_INT_ALL_STREAM 0xff /* all stream interrupts */
#define AZX_INT_CTRL_EN 0x40000000 /* controller interrupt enable bit */
#define AZX_INT_GLOBAL_EN 0x80000000 /* global interrupt enable bit */
/* below are so far hardcoded - should read registers in future */
#define AZX_MAX_CORB_ENTRIES 256
#define AZX_MAX_RIRB_ENTRIES 256
/* driver quirks (capabilities) */
/* bits 0-7 are used for indicating driver type */
......@@ -183,40 +58,10 @@ enum {
AZX_SNOOP_TYPE_NVIDIA,
};
/* HD Audio class code */
#define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
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 */
unsigned long start_wallclk; /* start + minimum wallclk */
unsigned long period_wallclk; /* wallclk for period */
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 */
int assigned_key; /* last device# key assigned to */
unsigned int opened:1;
unsigned int running:1;
struct hdac_stream core;
unsigned int irq_pending:1;
unsigned int prepared:1;
unsigned int locked:1;
/*
* For VIA:
* A flag to ensure DMA position is 0
......@@ -224,50 +69,17 @@ struct azx_dev {
*/
unsigned int insufficient:1;
unsigned int wc_marked:1;
unsigned int no_period_wakeup:1;
struct timecounter azx_tc;
struct cyclecounter azx_cc;
int delay_negative_threshold;
#ifdef CONFIG_SND_HDA_DSP_LOADER
/* Allows dsp load to have sole access to the playback stream. */
struct mutex dsp_mutex;
#endif
};
/* 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[AZX_MAX_CODECS]; /* number of pending requests */
u32 res[AZX_MAX_CODECS]; /* last read value */
};
#define azx_stream(dev) (&(dev)->core)
#define stream_to_azx_dev(s) container_of(s, struct azx_dev, core)
struct azx;
/* Functions to read/write to hda registers. */
struct hda_controller_ops {
/* Register Access */
void (*reg_writel)(u32 value, u32 __iomem *addr);
u32 (*reg_readl)(u32 __iomem *addr);
void (*reg_writew)(u16 value, u16 __iomem *addr);
u16 (*reg_readw)(u16 __iomem *addr);
void (*reg_writeb)(u8 value, u8 __iomem *addr);
u8 (*reg_readb)(u8 __iomem *addr);
/* Disable msi if supported, PCI only */
int (*disable_msi_reset_irq)(struct azx *);
/* Allocation ops */
int (*dma_alloc_pages)(struct azx *chip,
int type,
size_t size,
struct snd_dma_buffer *buf);
void (*dma_free_pages)(struct azx *chip, struct snd_dma_buffer *buf);
int (*substream_alloc_pages)(struct azx *chip,
struct snd_pcm_substream *substream,
size_t size);
......@@ -291,6 +103,8 @@ typedef unsigned int (*azx_get_pos_callback_t)(struct azx *, struct azx_dev *);
typedef int (*azx_get_delay_callback_t)(struct azx *, struct azx_dev *, unsigned int pos);
struct azx {
struct hda_bus bus;
struct snd_card *card;
struct pci_dev *pci;
int dev_index;
......@@ -312,35 +126,16 @@ struct azx {
azx_get_pos_callback_t get_position[2];
azx_get_delay_callback_t get_delay[2];
/* pci resources */
unsigned long addr;
void __iomem *remap_addr;
int irq;
/* locks */
spinlock_t reg_lock;
struct mutex open_mutex; /* Prevents concurrent open/close operations */
/* streams (x num_streams) */
struct azx_dev *azx_dev;
/* PCM */
struct list_head pcm_list; /* azx_pcm list */
/* HD codec */
unsigned short codec_mask;
int codec_probe_mask; /* copied from probe_mask option */
struct hda_bus *bus;
unsigned int beep_mode;
/* 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;
#ifdef CONFIG_SND_HDA_PATCH_LOADER
const struct firmware *fw;
#endif
......@@ -349,7 +144,6 @@ struct azx {
const int *bdl_pos_adj;
int poll_count;
unsigned int running:1;
unsigned int initialized:1;
unsigned int single_cmd:1;
unsigned int polling_mode:1;
unsigned int msi:1;
......@@ -359,14 +153,14 @@ struct azx {
unsigned int region_requested:1;
unsigned int disabled:1; /* disabled by VGA-switcher */
/* for debugging */
unsigned int last_cmd[AZX_MAX_CODECS];
#ifdef CONFIG_SND_HDA_DSP_LOADER
struct azx_dev saved_azx_dev;
#endif
};
#define azx_bus(chip) (&(chip)->bus.core)
#define bus_to_azx(_bus) container_of(_bus, struct azx, bus.core)
#ifdef CONFIG_X86
#define azx_snoop(chip) ((chip)->snoop)
#else
......@@ -378,30 +172,17 @@ struct azx {
*/
#define azx_writel(chip, reg, value) \
((chip)->ops->reg_writel(value, (chip)->remap_addr + AZX_REG_##reg))
snd_hdac_chip_writel(azx_bus(chip), reg, value)
#define azx_readl(chip, reg) \
((chip)->ops->reg_readl((chip)->remap_addr + AZX_REG_##reg))
snd_hdac_chip_readl(azx_bus(chip), reg)
#define azx_writew(chip, reg, value) \
((chip)->ops->reg_writew(value, (chip)->remap_addr + AZX_REG_##reg))
snd_hdac_chip_writew(azx_bus(chip), reg, value)
#define azx_readw(chip, reg) \
((chip)->ops->reg_readw((chip)->remap_addr + AZX_REG_##reg))
snd_hdac_chip_readw(azx_bus(chip), reg)
#define azx_writeb(chip, reg, value) \
((chip)->ops->reg_writeb(value, (chip)->remap_addr + AZX_REG_##reg))
snd_hdac_chip_writeb(azx_bus(chip), reg, value)
#define azx_readb(chip, reg) \
((chip)->ops->reg_readb((chip)->remap_addr + AZX_REG_##reg))
#define azx_sd_writel(chip, dev, reg, value) \
((chip)->ops->reg_writel(value, (dev)->sd_addr + AZX_REG_##reg))
#define azx_sd_readl(chip, dev, reg) \
((chip)->ops->reg_readl((dev)->sd_addr + AZX_REG_##reg))
#define azx_sd_writew(chip, dev, reg, value) \
((chip)->ops->reg_writew(value, (dev)->sd_addr + AZX_REG_##reg))
#define azx_sd_readw(chip, dev, reg) \
((chip)->ops->reg_readw((dev)->sd_addr + AZX_REG_##reg))
#define azx_sd_writeb(chip, dev, reg, value) \
((chip)->ops->reg_writeb(value, (dev)->sd_addr + AZX_REG_##reg))
#define azx_sd_readb(chip, dev, reg) \
((chip)->ops->reg_readb((dev)->sd_addr + AZX_REG_##reg))
snd_hdac_chip_readb(azx_bus(chip), reg)
#define azx_has_pm_runtime(chip) \
((chip)->driver_caps & AZX_DCAPS_PM_RUNTIME)
......@@ -416,22 +197,27 @@ unsigned int azx_get_pos_lpib(struct azx *chip, struct azx_dev *azx_dev);
unsigned int azx_get_pos_posbuf(struct azx *chip, struct azx_dev *azx_dev);
/* Stream control. */
void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev);
void azx_stop_all_streams(struct azx *chip);
/* Allocation functions. */
int azx_alloc_stream_pages(struct azx *chip);
void azx_free_stream_pages(struct azx *chip);
#define azx_alloc_stream_pages(chip) \
snd_hdac_bus_alloc_stream_pages(azx_bus(chip))
#define azx_free_stream_pages(chip) \
snd_hdac_bus_free_stream_pages(azx_bus(chip))
/* Low level azx interface */
void azx_init_chip(struct azx *chip, bool full_reset);
void azx_stop_chip(struct azx *chip);
void azx_enter_link_reset(struct azx *chip);
#define azx_enter_link_reset(chip) \
snd_hdac_bus_enter_link_reset(azx_bus(chip))
irqreturn_t azx_interrupt(int irq, void *dev_id);
/* Codec interface */
int azx_bus_create(struct azx *chip, const char *model);
int azx_bus_init(struct azx *chip, const char *model,
const struct hdac_io_ops *io_ops);
int azx_probe_codecs(struct azx *chip, unsigned int max_slots);
int azx_codec_configure(struct azx *chip);
int azx_init_stream(struct azx *chip);
int azx_init_streams(struct azx *chip);
void azx_free_streams(struct azx *chip);
#endif /* __SOUND_HDA_CONTROLLER_H */
sound/pci/hda/hda_intel.c
浏览文件 @ 8ab418d3
此差异已折叠。
sound/pci/hda/hda_intel.h
浏览文件 @ 8ab418d3
......@@ -34,6 +34,7 @@ struct hda_intel {
/* extra flags */
unsigned int irq_pending_warned:1;
unsigned int probe_continued:1;
/* VGA-switcheroo setup */
unsigned int use_vga_switcheroo:1;
......
sound/pci/hda/hda_intel_trace.h
浏览文件 @ 8ab418d3
......@@ -24,7 +24,7 @@ TRACE_EVENT(azx_pcm_trigger,
TP_fast_assign(
__entry->card = (chip)->card->number;
__entry->idx = (dev)->index;
__entry->idx = (dev)->core.index;
__entry->cmd = cmd;
),
......@@ -46,7 +46,7 @@ TRACE_EVENT(azx_get_position,
TP_fast_assign(
__entry->card = (chip)->card->number;
__entry->idx = (dev)->index;
__entry->idx = (dev)->core.index;
__entry->pos = pos;
__entry->delay = delay;
),
......
sound/pci/hda/hda_tegra.c
浏览文件 @ 8ab418d3
此差异已折叠。
sound/pci/hda/patch_ca0132.c
浏览文件 @ 8ab418d3
......@@ -2052,11 +2052,8 @@ static int dma_convert_to_hda_format(struct hda_codec *codec,
{
unsigned int format_val;
format_val = snd_hda_calc_stream_format(codec,
sample_rate,
channels,
SNDRV_PCM_FORMAT_S32_LE,
32, 0);
format_val = snd_hdac_calc_stream_format(sample_rate,
channels, SNDRV_PCM_FORMAT_S32_LE, 32, 0);
if (hda_format)
*hda_format = (unsigned short)format_val;
......
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