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linux/include/sound/vx_core.h
Takashi Iwai f8ae2d2919 ALSA: vx: Constify snd_vx_hardware and snd_vx_ops definitions 
Both snd_vx_hardware and snd_vx_ops are only referred without
modification, hence they can be constified gracefully for further
optimizations.

There should be no functional changes by this patch.

Link: https://lore.kernel.org/r/20200103081714.9560-31-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03 09:24:20 +01:00

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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Driver for Digigram VX soundcards
*
* Hardware core part
*
* Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
*/
#ifndef __SOUND_VX_COMMON_H
#define __SOUND_VX_COMMON_H
#include <sound/pcm.h>
#include <sound/hwdep.h>
#include <linux/interrupt.h>
struct firmware;
struct device;
#define VX_DRIVER_VERSION 0x010000 /* 1.0.0 */
/*
*/
#define SIZE_MAX_CMD 0x10
#define SIZE_MAX_STATUS 0x10
struct vx_rmh {
u16 LgCmd; /* length of the command to send (WORDs) */
u16 LgStat; /* length of the status received (WORDs) */
u32 Cmd[SIZE_MAX_CMD];
u32 Stat[SIZE_MAX_STATUS];
u16 DspStat; /* status type, RMP_SSIZE_XXX */
};
typedef u64 pcx_time_t;
#define VX_MAX_PIPES 16
#define VX_MAX_PERIODS 32
#define VX_MAX_CODECS 2
struct vx_ibl_info {
int size; /* the current IBL size (0 = query) in bytes */
int max_size; /* max. IBL size in bytes */
int min_size; /* min. IBL size in bytes */
int granularity; /* granularity */
};
struct vx_pipe {
int number;
unsigned int is_capture: 1;
unsigned int data_mode: 1;
unsigned int running: 1;
unsigned int prepared: 1;
int channels;
unsigned int differed_type;
pcx_time_t pcx_time;
struct snd_pcm_substream *substream;
int hbuf_size; /* H-buffer size in bytes */
int buffer_bytes; /* the ALSA pcm buffer size in bytes */
int period_bytes; /* the ALSA pcm period size in bytes */
int hw_ptr; /* the current hardware pointer in bytes */
int position; /* the current position in frames (playback only) */
int transferred; /* the transferred size (per period) in frames */
int align; /* size of alignment */
u64 cur_count; /* current sample position (for playback) */
unsigned int references; /* an output pipe may be used for monitoring and/or playback */
struct vx_pipe *monitoring_pipe; /* pointer to the monitoring pipe (capture pipe only)*/
};
struct vx_core;
struct snd_vx_ops {
/* low-level i/o */
unsigned char (*in8)(struct vx_core *chip, int reg);
unsigned int (*in32)(struct vx_core *chip, int reg);
void (*out8)(struct vx_core *chip, int reg, unsigned char val);
void (*out32)(struct vx_core *chip, int reg, unsigned int val);
/* irq */
int (*test_and_ack)(struct vx_core *chip);
void (*validate_irq)(struct vx_core *chip, int enable);
/* codec */
void (*write_codec)(struct vx_core *chip, int codec, unsigned int data);
void (*akm_write)(struct vx_core *chip, int reg, unsigned int data);
void (*reset_codec)(struct vx_core *chip);
void (*change_audio_source)(struct vx_core *chip, int src);
void (*set_clock_source)(struct vx_core *chp, int src);
/* chip init */
int (*load_dsp)(struct vx_core *chip, int idx, const struct firmware *fw);
void (*reset_dsp)(struct vx_core *chip);
void (*reset_board)(struct vx_core *chip, int cold_reset);
int (*add_controls)(struct vx_core *chip);
/* pcm */
void (*dma_write)(struct vx_core *chip, struct snd_pcm_runtime *runtime,
struct vx_pipe *pipe, int count);
void (*dma_read)(struct vx_core *chip, struct snd_pcm_runtime *runtime,
struct vx_pipe *pipe, int count);
};
struct snd_vx_hardware {
const char *name;
int type; /* VX_TYPE_XXX */
/* hardware specs */
unsigned int num_codecs;
unsigned int num_ins;
unsigned int num_outs;
unsigned int output_level_max;
const unsigned int *output_level_db_scale;
};
/* hwdep id string */
#define SND_VX_HWDEP_ID "VX Loader"
/* hardware type */
enum {
/* VX222 PCI */
VX_TYPE_BOARD, /* old VX222 PCI */
VX_TYPE_V2, /* VX222 V2 PCI */
VX_TYPE_MIC, /* VX222 Mic PCI */
/* VX-pocket */
VX_TYPE_VXPOCKET, /* VXpocket V2 */
VX_TYPE_VXP440, /* VXpocket 440 */
VX_TYPE_NUMS
};
/* chip status */
enum {
VX_STAT_XILINX_LOADED = (1 << 0), /* devices are registered */
VX_STAT_DEVICE_INIT = (1 << 1), /* devices are registered */
VX_STAT_CHIP_INIT = (1 << 2), /* all operational */
VX_STAT_IN_SUSPEND = (1 << 10), /* in suspend phase */
VX_STAT_IS_STALE = (1 << 15) /* device is stale */
};
/* min/max values for analog output for old codecs */
#define VX_ANALOG_OUT_LEVEL_MAX 0xe3
struct vx_core {
/* ALSA stuff */
struct snd_card *card;
struct snd_pcm *pcm[VX_MAX_CODECS];
int type; /* VX_TYPE_XXX */
int irq;
/* ports are defined externally */
/* low-level functions */
const struct snd_vx_hardware *hw;
const struct snd_vx_ops *ops;
struct mutex lock;
unsigned int chip_status;
unsigned int pcm_running;
struct device *dev;
struct snd_hwdep *hwdep;
struct vx_rmh irq_rmh; /* RMH used in interrupts */
unsigned int audio_info; /* see VX_AUDIO_INFO */
unsigned int audio_ins;
unsigned int audio_outs;
struct vx_pipe **playback_pipes;
struct vx_pipe **capture_pipes;
/* clock and audio sources */
unsigned int audio_source; /* current audio input source */
unsigned int audio_source_target;
unsigned int clock_mode; /* clock mode (VX_CLOCK_MODE_XXX) */
unsigned int clock_source; /* current clock source (INTERNAL_QUARTZ or UER_SYNC) */
unsigned int freq; /* current frequency */
unsigned int freq_detected; /* detected frequency from digital in */
unsigned int uer_detected; /* VX_UER_MODE_XXX */
unsigned int uer_bits; /* IEC958 status bits */
struct vx_ibl_info ibl; /* IBL information */
/* mixer setting */
int output_level[VX_MAX_CODECS][2]; /* analog output level */
int audio_gain[2][4]; /* digital audio level (playback/capture) */
unsigned char audio_active[4]; /* mute/unmute on digital playback */
int audio_monitor[4]; /* playback hw-monitor level */
unsigned char audio_monitor_active[4]; /* playback hw-monitor mute/unmute */
struct mutex mixer_mutex;
const struct firmware *firmware[4]; /* loaded firmware data */
};
/*
* constructor
*/
struct vx_core *snd_vx_create(struct snd_card *card,
const struct snd_vx_hardware *hw,
const struct snd_vx_ops *ops, int extra_size);
int snd_vx_setup_firmware(struct vx_core *chip);
int snd_vx_load_boot_image(struct vx_core *chip, const struct firmware *dsp);
int snd_vx_dsp_boot(struct vx_core *chip, const struct firmware *dsp);
int snd_vx_dsp_load(struct vx_core *chip, const struct firmware *dsp);
void snd_vx_free_firmware(struct vx_core *chip);
/*
* interrupt handler; exported for pcmcia
*/
irqreturn_t snd_vx_irq_handler(int irq, void *dev);
irqreturn_t snd_vx_threaded_irq_handler(int irq, void *dev);
/*
* lowlevel functions
*/
static inline int vx_test_and_ack(struct vx_core *chip)
{
return chip->ops->test_and_ack(chip);
}
static inline void vx_validate_irq(struct vx_core *chip, int enable)
{
chip->ops->validate_irq(chip, enable);
}
static inline unsigned char snd_vx_inb(struct vx_core *chip, int reg)
{
return chip->ops->in8(chip, reg);
}
static inline unsigned int snd_vx_inl(struct vx_core *chip, int reg)
{
return chip->ops->in32(chip, reg);
}
static inline void snd_vx_outb(struct vx_core *chip, int reg, unsigned char val)
{
chip->ops->out8(chip, reg, val);
}
static inline void snd_vx_outl(struct vx_core *chip, int reg, unsigned int val)
{
chip->ops->out32(chip, reg, val);
}
#define vx_inb(chip,reg) snd_vx_inb(chip, VX_##reg)
#define vx_outb(chip,reg,val) snd_vx_outb(chip, VX_##reg,val)
#define vx_inl(chip,reg) snd_vx_inl(chip, VX_##reg)
#define vx_outl(chip,reg,val) snd_vx_outl(chip, VX_##reg,val)
static inline void vx_reset_dsp(struct vx_core *chip)
{
chip->ops->reset_dsp(chip);
}
int vx_send_msg(struct vx_core *chip, struct vx_rmh *rmh);
int vx_send_msg_nolock(struct vx_core *chip, struct vx_rmh *rmh);
int vx_send_rih(struct vx_core *chip, int cmd);
int vx_send_rih_nolock(struct vx_core *chip, int cmd);
void vx_reset_codec(struct vx_core *chip, int cold_reset);
/*
* check the bit on the specified register
* returns zero if a bit matches, or a negative error code.
* exported for vxpocket driver
*/
int snd_vx_check_reg_bit(struct vx_core *chip, int reg, int mask, int bit, int time);
#define vx_check_isr(chip,mask,bit,time) snd_vx_check_reg_bit(chip, VX_ISR, mask, bit, time)
#define vx_wait_isr_bit(chip,bit) vx_check_isr(chip, bit, bit, 200)
#define vx_wait_for_rx_full(chip) vx_wait_isr_bit(chip, ISR_RX_FULL)
/*
* pseudo-DMA transfer
*/
static inline void vx_pseudo_dma_write(struct vx_core *chip, struct snd_pcm_runtime *runtime,
struct vx_pipe *pipe, int count)
{
chip->ops->dma_write(chip, runtime, pipe, count);
}
static inline void vx_pseudo_dma_read(struct vx_core *chip, struct snd_pcm_runtime *runtime,
struct vx_pipe *pipe, int count)
{
chip->ops->dma_read(chip, runtime, pipe, count);
}
/* error with hardware code,
* the return value is -(VX_ERR_MASK | actual-hw-error-code)
*/
#define VX_ERR_MASK 0x1000000
#define vx_get_error(err) (-(err) & ~VX_ERR_MASK)
/*
* pcm stuff
*/
int snd_vx_pcm_new(struct vx_core *chip);
void vx_pcm_update_intr(struct vx_core *chip, unsigned int events);
/*
* mixer stuff
*/
int snd_vx_mixer_new(struct vx_core *chip);
void vx_toggle_dac_mute(struct vx_core *chip, int mute);
int vx_sync_audio_source(struct vx_core *chip);
int vx_set_monitor_level(struct vx_core *chip, int audio, int level, int active);
/*
* IEC958 & clock stuff
*/
void vx_set_iec958_status(struct vx_core *chip, unsigned int bits);
int vx_set_clock(struct vx_core *chip, unsigned int freq);
void vx_set_internal_clock(struct vx_core *chip, unsigned int freq);
int vx_change_frequency(struct vx_core *chip);
/*
* PM
*/
int snd_vx_suspend(struct vx_core *card);
int snd_vx_resume(struct vx_core *card);
/*
* hardware constants
*/
#define vx_has_new_dsp(chip) ((chip)->type != VX_TYPE_BOARD)
#define vx_is_pcmcia(chip) ((chip)->type >= VX_TYPE_VXPOCKET)
/* audio input source */
enum {
VX_AUDIO_SRC_DIGITAL,
VX_AUDIO_SRC_LINE,
VX_AUDIO_SRC_MIC
};
/* clock source */
enum {
INTERNAL_QUARTZ,
UER_SYNC
};
/* clock mode */
enum {
VX_CLOCK_MODE_AUTO, /* depending on the current audio source */
VX_CLOCK_MODE_INTERNAL, /* fixed to internal quartz */
VX_CLOCK_MODE_EXTERNAL /* fixed to UER sync */
};
/* SPDIF/UER type */
enum {
VX_UER_MODE_CONSUMER,
VX_UER_MODE_PROFESSIONAL,
VX_UER_MODE_NOT_PRESENT,
};
/* register indices */
enum {
VX_ICR,
VX_CVR,
VX_ISR,
VX_IVR,
VX_RXH,
VX_TXH = VX_RXH,
VX_RXM,
VX_TXM = VX_RXM,
VX_RXL,
VX_TXL = VX_RXL,
VX_DMA,
VX_CDSP,
VX_RFREQ,
VX_RUER_V2,
VX_GAIN,
VX_DATA = VX_GAIN,
VX_MEMIRQ,
VX_ACQ,
VX_BIT0,
VX_BIT1,
VX_MIC0,
VX_MIC1,
VX_MIC2,
VX_MIC3,
VX_PLX0,
VX_PLX1,
VX_PLX2,
VX_LOFREQ, // V2: ACQ, VP: RFREQ
VX_HIFREQ, // V2: BIT0, VP: RUER_V2
VX_CSUER, // V2: BIT1, VP: BIT0
VX_RUER, // V2: RUER_V2, VP: BIT1
VX_REG_MAX,
/* aliases for VX board */
VX_RESET_DMA = VX_ISR,
VX_CFG = VX_RFREQ,
VX_STATUS = VX_MEMIRQ,
VX_SELMIC = VX_MIC0,
VX_COMPOT = VX_MIC1,
VX_SCOMPR = VX_MIC2,
VX_GLIMIT = VX_MIC3,
VX_INTCSR = VX_PLX0,
VX_CNTRL = VX_PLX1,
VX_GPIOC = VX_PLX2,
/* aliases for VXPOCKET board */
VX_MICRO = VX_MEMIRQ,
VX_CODEC2 = VX_MEMIRQ,
VX_DIALOG = VX_ACQ,
};
/* RMH status type */
enum {
RMH_SSIZE_FIXED = 0, /* status size given by the driver (in LgStat) */
RMH_SSIZE_ARG = 1, /* status size given in the LSB byte */
RMH_SSIZE_MASK = 2, /* status size given in bitmask */
};
/* bits for ICR register */
#define ICR_HF1 0x10
#define ICR_HF0 0x08
#define ICR_TREQ 0x02 /* Interrupt mode + HREQ set on for transfer (->DSP) request */
#define ICR_RREQ 0x01 /* Interrupt mode + RREQ set on for transfer (->PC) request */
/* bits for CVR register */
#define CVR_HC 0x80
/* bits for ISR register */
#define ISR_HF3 0x10
#define ISR_HF2 0x08
#define ISR_CHK 0x10
#define ISR_ERR 0x08
#define ISR_TX_READY 0x04
#define ISR_TX_EMPTY 0x02
#define ISR_RX_FULL 0x01
/* Constants used to access the DATA register */
#define VX_DATA_CODEC_MASK 0x80
#define VX_DATA_XICOR_MASK 0x80
/* Constants used to access the CSUER register (both for VX2 and VXP) */
#define VX_SUER_FREQ_MASK 0x0c
#define VX_SUER_FREQ_32KHz_MASK 0x0c
#define VX_SUER_FREQ_44KHz_MASK 0x00
#define VX_SUER_FREQ_48KHz_MASK 0x04
#define VX_SUER_DATA_PRESENT_MASK 0x02
#define VX_SUER_CLOCK_PRESENT_MASK 0x01
#define VX_CUER_HH_BITC_SEL_MASK 0x08
#define VX_CUER_MH_BITC_SEL_MASK 0x04
#define VX_CUER_ML_BITC_SEL_MASK 0x02
#define VX_CUER_LL_BITC_SEL_MASK 0x01
#define XX_UER_CBITS_OFFSET_MASK 0x1f
/* bits for audio_info */
#define VX_AUDIO_INFO_REAL_TIME (1<<0) /* real-time processing available */
#define VX_AUDIO_INFO_OFFLINE (1<<1) /* offline processing available */
#define VX_AUDIO_INFO_MPEG1 (1<<5)
#define VX_AUDIO_INFO_MPEG2 (1<<6)
#define VX_AUDIO_INFO_LINEAR_8 (1<<7)
#define VX_AUDIO_INFO_LINEAR_16 (1<<8)
#define VX_AUDIO_INFO_LINEAR_24 (1<<9)
/* DSP Interrupt Request values */
#define VXP_IRQ_OFFSET 0x40 /* add 0x40 offset for vxpocket and vx222/v2 */
/* call with vx_send_irq_dsp() */
#define IRQ_MESS_WRITE_END 0x30
#define IRQ_MESS_WRITE_NEXT 0x32
#define IRQ_MESS_READ_NEXT 0x34
#define IRQ_MESS_READ_END 0x36
#define IRQ_MESSAGE 0x38
#define IRQ_RESET_CHK 0x3A
#define IRQ_CONNECT_STREAM_NEXT 0x26
#define IRQ_CONNECT_STREAM_END 0x28
#define IRQ_PAUSE_START_CONNECT 0x2A
#define IRQ_END_CONNECTION 0x2C
/* Is there async. events pending ( IT Source Test ) */
#define ASYNC_EVENTS_PENDING 0x008000
#define HBUFFER_EVENTS_PENDING 0x004000 // Not always accurate
#define NOTIF_EVENTS_PENDING 0x002000
#define TIME_CODE_EVENT_PENDING 0x001000
#define FREQUENCY_CHANGE_EVENT_PENDING 0x000800
#define END_OF_BUFFER_EVENTS_PENDING 0x000400
#define FATAL_DSP_ERROR 0xff0000
/* Stream Format Header Defines */
#define HEADER_FMT_BASE 0xFED00000
#define HEADER_FMT_MONO 0x000000C0
#define HEADER_FMT_INTEL 0x00008000
#define HEADER_FMT_16BITS 0x00002000
#define HEADER_FMT_24BITS 0x00004000
#define HEADER_FMT_UPTO11 0x00000200 /* frequency is less or equ. to 11k.*/
#define HEADER_FMT_UPTO32 0x00000100 /* frequency is over 11k and less then 32k.*/
/* Constants used to access the Codec */
#define XX_CODEC_SELECTOR 0x20
/* codec commands */
#define XX_CODEC_ADC_CONTROL_REGISTER 0x01
#define XX_CODEC_DAC_CONTROL_REGISTER 0x02
#define XX_CODEC_LEVEL_LEFT_REGISTER 0x03
#define XX_CODEC_LEVEL_RIGHT_REGISTER 0x04
#define XX_CODEC_PORT_MODE_REGISTER 0x05
#define XX_CODEC_STATUS_REPORT_REGISTER 0x06
#define XX_CODEC_CLOCK_CONTROL_REGISTER 0x07
/*
* Audio-level control values
*/
#define CVAL_M110DB 0x000 /* -110dB */
#define CVAL_M99DB 0x02C
#define CVAL_M21DB 0x163
#define CVAL_M18DB 0x16F
#define CVAL_M10DB 0x18F
#define CVAL_0DB 0x1B7
#define CVAL_18DB 0x1FF /* +18dB */
#define CVAL_MAX 0x1FF
#define AUDIO_IO_HAS_MUTE_LEVEL 0x400000
#define AUDIO_IO_HAS_MUTE_MONITORING_1 0x200000
#define AUDIO_IO_HAS_MUTE_MONITORING_2 0x100000
#define VALID_AUDIO_IO_DIGITAL_LEVEL 0x01
#define VALID_AUDIO_IO_MONITORING_LEVEL 0x02
#define VALID_AUDIO_IO_MUTE_LEVEL 0x04
#define VALID_AUDIO_IO_MUTE_MONITORING_1 0x08
#define VALID_AUDIO_IO_MUTE_MONITORING_2 0x10
#endif /* __SOUND_VX_COMMON_H */
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