ctatc.h
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/**
* Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
*
* This source file is released under GPL v2 license (no other versions).
* See the COPYING file included in the main directory of this source
* distribution for the license terms and conditions.
*
* @File ctatc.h
*
* @Brief
* This file contains the definition of the device resource management object.
*
* @Author Liu Chun
* @Date Mar 28 2008
*
*/
#ifndef CTATC_H
#define CTATC_H
#include <linux/types.h>
#include <linux/mutex.h>
#include <linux/pci.h>
#include <linux/timer.h>
#include <sound/core.h>
#include "ctvmem.h"
#include "cthardware.h"
#include "ctresource.h"
enum CTALSADEVS { /* Types of alsa devices */
FRONT,
SURROUND,
CLFE,
SIDE,
IEC958,
MIXER,
NUM_CTALSADEVS /* This should always be the last */
};
struct ct_atc_chip_sub_details {
u16 subsys;
const char *nm_model;
};
struct ct_atc_chip_details {
u16 vendor;
u16 device;
const struct ct_atc_chip_sub_details *sub_details;
const char *nm_card;
};
struct ct_atc;
struct ct_timer;
struct ct_timer_instance;
/* alsa pcm stream descriptor */
struct ct_atc_pcm {
struct snd_pcm_substream *substream;
void (*interrupt)(struct ct_atc_pcm *apcm);
struct ct_timer_instance *timer;
unsigned int started:1;
/* Only mono and interleaved modes are supported now. */
struct ct_vm_block *vm_block;
void *src; /* SRC for interacting with host memory */
void **srccs; /* SRCs for sample rate conversion */
void **srcimps; /* SRC Input Mappers */
void **amixers; /* AMIXERs for routing converted data */
void *mono; /* A SUM resource for mixing chs to one */
unsigned char n_srcc; /* Number of converting SRCs */
unsigned char n_srcimp; /* Number of SRC Input Mappers */
unsigned char n_amixer; /* Number of AMIXERs */
};
/* Chip resource management object */
struct ct_atc {
struct pci_dev *pci;
struct snd_card *card;
unsigned int rsr; /* reference sample rate in Hz */
unsigned int msr; /* master sample rate in rsr */
unsigned int pll_rate; /* current rate of Phase Lock Loop */
int chip_type;
int model;
const char *chip_name;
const char *model_name;
struct ct_vm *vm; /* device virtual memory manager for this card */
int (*map_audio_buffer)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
void (*unmap_audio_buffer)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
unsigned long (*get_ptp_phys)(struct ct_atc *atc, int index);
struct mutex atc_mutex;
int (*pcm_playback_prepare)(struct ct_atc *atc,
struct ct_atc_pcm *apcm);
int (*pcm_playback_start)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
int (*pcm_playback_stop)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
int (*pcm_playback_position)(struct ct_atc *atc,
struct ct_atc_pcm *apcm);
int (*spdif_passthru_playback_prepare)(struct ct_atc *atc,
struct ct_atc_pcm *apcm);
int (*pcm_capture_prepare)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
int (*pcm_capture_start)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
int (*pcm_capture_stop)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
int (*pcm_capture_position)(struct ct_atc *atc,
struct ct_atc_pcm *apcm);
int (*pcm_release_resources)(struct ct_atc *atc,
struct ct_atc_pcm *apcm);
int (*select_line_in)(struct ct_atc *atc);
int (*select_mic_in)(struct ct_atc *atc);
int (*select_digit_io)(struct ct_atc *atc);
int (*line_front_unmute)(struct ct_atc *atc, unsigned char state);
int (*line_surround_unmute)(struct ct_atc *atc, unsigned char state);
int (*line_clfe_unmute)(struct ct_atc *atc, unsigned char state);
int (*line_rear_unmute)(struct ct_atc *atc, unsigned char state);
int (*line_in_unmute)(struct ct_atc *atc, unsigned char state);
int (*mic_unmute)(struct ct_atc *atc, unsigned char state);
int (*spdif_out_unmute)(struct ct_atc *atc, unsigned char state);
int (*spdif_in_unmute)(struct ct_atc *atc, unsigned char state);
int (*spdif_out_get_status)(struct ct_atc *atc, unsigned int *status);
int (*spdif_out_set_status)(struct ct_atc *atc, unsigned int status);
int (*spdif_out_passthru)(struct ct_atc *atc, unsigned char state);
struct capabilities (*capabilities)(struct ct_atc *atc);
int (*output_switch_get)(struct ct_atc *atc);
int (*output_switch_put)(struct ct_atc *atc, int position);
int (*mic_source_switch_get)(struct ct_atc *atc);
int (*mic_source_switch_put)(struct ct_atc *atc, int position);
/* Don't touch! Used for internal object. */
void *rsc_mgrs[NUM_RSCTYP]; /* chip resource managers */
void *mixer; /* internal mixer object */
void *hw; /* chip specific hardware access object */
void **daios; /* digital audio io resources */
void **pcm; /* SUMs for collecting all pcm stream */
void **srcs; /* Sample Rate Converters for input signal */
void **srcimps; /* input mappers for SRCs */
unsigned char n_daio;
unsigned char n_src;
unsigned char n_srcimp;
unsigned char n_pcm;
struct ct_timer *timer;
#ifdef CONFIG_PM_SLEEP
int (*suspend)(struct ct_atc *atc);
int (*resume)(struct ct_atc *atc);
#define NUM_PCMS (NUM_CTALSADEVS - 1)
struct snd_pcm *pcms[NUM_PCMS];
#endif
};
int ct_atc_create(struct snd_card *card, struct pci_dev *pci,
unsigned int rsr, unsigned int msr, int chip_type,
unsigned int subsysid, struct ct_atc **ratc);
int ct_atc_create_alsa_devs(struct ct_atc *atc);
#endif /* CTATC_H */