215 lines
6.3 KiB
C
215 lines
6.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* Common functionality for the alsa driver code base for HD Audio.
|
|
*/
|
|
|
|
#ifndef __SOUND_HDA_CONTROLLER_H
|
|
#define __SOUND_HDA_CONTROLLER_H
|
|
|
|
#include <linux/timecounter.h>
|
|
#include <linux/interrupt.h>
|
|
#include <sound/core.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/initval.h>
|
|
#include <sound/hda_codec.h>
|
|
#include <sound/hda_register.h>
|
|
|
|
#define AZX_MAX_CODECS HDA_MAX_CODECS
|
|
#define AZX_DEFAULT_CODECS 4
|
|
|
|
/* driver quirks (capabilities) */
|
|
/* bits 0-7 are used for indicating driver type */
|
|
#define AZX_DCAPS_NO_TCSEL (1 << 8) /* No Intel TCSEL bit */
|
|
#define AZX_DCAPS_NO_MSI (1 << 9) /* No MSI support */
|
|
#define AZX_DCAPS_SNOOP_MASK (3 << 10) /* snoop type mask */
|
|
#define AZX_DCAPS_SNOOP_OFF (1 << 12) /* snoop default off */
|
|
#ifdef CONFIG_SND_HDA_I915
|
|
#define AZX_DCAPS_I915_COMPONENT (1 << 13) /* bind with i915 gfx */
|
|
#else
|
|
#define AZX_DCAPS_I915_COMPONENT 0 /* NOP */
|
|
#endif
|
|
/* 14 unused */
|
|
#define AZX_DCAPS_CTX_WORKAROUND (1 << 15) /* X-Fi workaround */
|
|
#define AZX_DCAPS_POSFIX_LPIB (1 << 16) /* Use LPIB as default */
|
|
#define AZX_DCAPS_AMD_WORKAROUND (1 << 17) /* AMD-specific workaround */
|
|
#define AZX_DCAPS_NO_64BIT (1 << 18) /* No 64bit address */
|
|
/* 19 unused */
|
|
#define AZX_DCAPS_OLD_SSYNC (1 << 20) /* Old SSYNC reg for ICH */
|
|
#define AZX_DCAPS_NO_ALIGN_BUFSIZE (1 << 21) /* no buffer size alignment */
|
|
/* 22 unused */
|
|
#define AZX_DCAPS_4K_BDLE_BOUNDARY (1 << 23) /* BDLE in 4k boundary */
|
|
/* 24 unused */
|
|
#define AZX_DCAPS_COUNT_LPIB_DELAY (1 << 25) /* Take LPIB as delay */
|
|
#define AZX_DCAPS_PM_RUNTIME (1 << 26) /* runtime PM support */
|
|
#define AZX_DCAPS_RETRY_PROBE (1 << 27) /* retry probe if no codec is configured */
|
|
#define AZX_DCAPS_CORBRP_SELF_CLEAR (1 << 28) /* CORBRP clears itself after reset */
|
|
#define AZX_DCAPS_NO_MSI64 (1 << 29) /* Stick to 32-bit MSIs */
|
|
#define AZX_DCAPS_SEPARATE_STREAM_TAG (1 << 30) /* capture and playback use separate stream tag */
|
|
|
|
enum {
|
|
AZX_SNOOP_TYPE_NONE,
|
|
AZX_SNOOP_TYPE_SCH,
|
|
AZX_SNOOP_TYPE_ATI,
|
|
AZX_SNOOP_TYPE_NVIDIA,
|
|
};
|
|
|
|
struct azx_dev {
|
|
struct hdac_stream core;
|
|
|
|
unsigned int irq_pending:1;
|
|
/*
|
|
* For VIA:
|
|
* A flag to ensure DMA position is 0
|
|
* when link position is not greater than FIFO size
|
|
*/
|
|
unsigned int insufficient:1;
|
|
};
|
|
|
|
#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 {
|
|
/* Disable msi if supported, PCI only */
|
|
int (*disable_msi_reset_irq)(struct azx *);
|
|
/* Check if current position is acceptable */
|
|
int (*position_check)(struct azx *chip, struct azx_dev *azx_dev);
|
|
/* enable/disable the link power */
|
|
int (*link_power)(struct azx *chip, bool enable);
|
|
};
|
|
|
|
struct azx_pcm {
|
|
struct azx *chip;
|
|
struct snd_pcm *pcm;
|
|
struct hda_codec *codec;
|
|
struct hda_pcm *info;
|
|
struct list_head list;
|
|
};
|
|
|
|
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;
|
|
|
|
/* chip type specific */
|
|
int driver_type;
|
|
unsigned int driver_caps;
|
|
int playback_streams;
|
|
int playback_index_offset;
|
|
int capture_streams;
|
|
int capture_index_offset;
|
|
int num_streams;
|
|
int jackpoll_interval; /* jack poll interval in jiffies */
|
|
|
|
/* Register interaction. */
|
|
const struct hda_controller_ops *ops;
|
|
|
|
/* position adjustment callbacks */
|
|
azx_get_pos_callback_t get_position[2];
|
|
azx_get_delay_callback_t get_delay[2];
|
|
|
|
/* locks */
|
|
struct mutex open_mutex; /* Prevents concurrent open/close operations */
|
|
|
|
/* PCM */
|
|
struct list_head pcm_list; /* azx_pcm list */
|
|
|
|
/* HD codec */
|
|
int codec_probe_mask; /* copied from probe_mask option */
|
|
unsigned int beep_mode;
|
|
bool ctl_dev_id;
|
|
|
|
#ifdef CONFIG_SND_HDA_PATCH_LOADER
|
|
const struct firmware *fw;
|
|
#endif
|
|
|
|
/* flags */
|
|
int bdl_pos_adj;
|
|
unsigned int running:1;
|
|
unsigned int fallback_to_single_cmd:1;
|
|
unsigned int single_cmd:1;
|
|
unsigned int msi:1;
|
|
unsigned int probing:1; /* codec probing phase */
|
|
unsigned int snoop:1;
|
|
unsigned int uc_buffer:1; /* non-cached pages for stream buffers */
|
|
unsigned int align_buffer_size:1;
|
|
unsigned int disabled:1; /* disabled by vga_switcheroo */
|
|
unsigned int pm_prepared:1;
|
|
|
|
/* GTS present */
|
|
unsigned int gts_present:1;
|
|
|
|
#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)
|
|
|
|
static inline bool azx_snoop(struct azx *chip)
|
|
{
|
|
return !IS_ENABLED(CONFIG_X86) || chip->snoop;
|
|
}
|
|
|
|
/*
|
|
* macros for easy use
|
|
*/
|
|
|
|
#define azx_writel(chip, reg, value) \
|
|
snd_hdac_chip_writel(azx_bus(chip), reg, value)
|
|
#define azx_readl(chip, reg) \
|
|
snd_hdac_chip_readl(azx_bus(chip), reg)
|
|
#define azx_writew(chip, reg, value) \
|
|
snd_hdac_chip_writew(azx_bus(chip), reg, value)
|
|
#define azx_readw(chip, reg) \
|
|
snd_hdac_chip_readw(azx_bus(chip), reg)
|
|
#define azx_writeb(chip, reg, value) \
|
|
snd_hdac_chip_writeb(azx_bus(chip), reg, value)
|
|
#define azx_readb(chip, reg) \
|
|
snd_hdac_chip_readb(azx_bus(chip), reg)
|
|
|
|
#define azx_has_pm_runtime(chip) \
|
|
((chip)->driver_caps & AZX_DCAPS_PM_RUNTIME)
|
|
|
|
/* PCM setup */
|
|
static inline struct azx_dev *get_azx_dev(struct snd_pcm_substream *substream)
|
|
{
|
|
return substream->runtime->private_data;
|
|
}
|
|
unsigned int azx_get_position(struct azx *chip, struct azx_dev *azx_dev);
|
|
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_stop_all_streams(struct azx *chip);
|
|
|
|
/* Allocation functions. */
|
|
#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);
|
|
#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_init(struct azx *chip, const char *model);
|
|
int azx_probe_codecs(struct azx *chip, unsigned int max_slots);
|
|
int azx_codec_configure(struct azx *chip);
|
|
int azx_init_streams(struct azx *chip);
|
|
void azx_free_streams(struct azx *chip);
|
|
|
|
#endif /* __SOUND_HDA_CONTROLLER_H */
|