pmac.h

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/*
 * Driver for PowerMac onboard soundchips
 * Copyright (c) 2001 by Takashi Iwai <[email protected]>
 *   based on dmasound.c.
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */


#ifndef __PMAC_H
#define __PMAC_H

#include <sound/control.h>
#include <sound/pcm.h>
#include "awacs.h"

#include <linux/adb.h>
#ifdef CONFIG_ADB_CUDA
#include <linux/cuda.h>
#endif
#ifdef CONFIG_ADB_PMU
#include <linux/pmu.h>
#endif
#include <linux/nvram.h>
#include <linux/tty.h>
#include <linux/vt_kern.h>
#include <asm/dbdma.h>
#include <asm/prom.h>
#include <asm/machdep.h>

/* maximum number of fragments */
#define PMAC_MAX_FRAGS      32


#define PMAC_SUPPORT_AUTOMUTE

/*
 * DBDMA space
 */
struct pmac_dbdma {
    dma_addr_t dma_base;
    dma_addr_t addr;
    struct dbdma_cmd __iomem *cmds;
    void *space;
    int size;
};

/*
 * playback/capture stream
 */
struct pmac_stream {
    int running;    /* boolean */

    int stream; /* PLAYBACK/CAPTURE */

    int dma_size; /* in bytes */
    int period_size; /* in bytes */
    int buffer_size; /* in kbytes */
    int nperiods, cur_period;

    struct pmac_dbdma cmd;
    volatile struct dbdma_regs __iomem *dma;

    struct snd_pcm_substream *substream;

    unsigned int cur_freqs;     /* currently available frequencies */
    unsigned int cur_formats;   /* currently available formats */
};


/*
 */

enum snd_pmac_model {
    PMAC_AWACS, PMAC_SCREAMER, PMAC_BURGUNDY, PMAC_DACA, PMAC_TUMBLER,
    PMAC_SNAPPER
};

struct snd_pmac {
    struct snd_card *card;

    /* h/w info */
    struct device_node *node;
    struct pci_dev *pdev;
    unsigned int revision;
    unsigned int manufacturer;
    unsigned int subframe;
    unsigned int device_id;
    enum snd_pmac_model model;

    unsigned int has_iic : 1;
    unsigned int is_pbook_3400 : 1;
    unsigned int is_pbook_G3 : 1;
    unsigned int is_k2 : 1;

    unsigned int can_byte_swap : 1;
    unsigned int can_duplex : 1;
    unsigned int can_capture : 1;

    unsigned int auto_mute : 1;
    unsigned int initialized : 1;
    unsigned int feature_is_set : 1;

    unsigned int requested;
    struct resource rsrc[3];

    int num_freqs;
    int *freq_table;
    unsigned int freqs_ok;      /* bit flags */
    unsigned int formats_ok;    /* pcm hwinfo */
    int active;
    int rate_index;
    int format;         /* current format */

    spinlock_t reg_lock;
    volatile struct awacs_regs __iomem *awacs;
    int awacs_reg[8]; /* register cache */
    unsigned int hp_stat_mask;

    unsigned char __iomem *latch_base;
    unsigned char __iomem *macio_base;

    struct pmac_stream playback;
    struct pmac_stream capture;

    struct pmac_dbdma extra_dma;

    int irq, tx_irq, rx_irq;

    struct snd_pcm *pcm;

    struct pmac_beep *beep;

    unsigned int control_mask;  /* control mask */

    /* mixer stuffs */
    void *mixer_data;
    void (*mixer_free)(struct snd_pmac *);
    struct snd_kcontrol *master_sw_ctl;
    struct snd_kcontrol *speaker_sw_ctl;
    struct snd_kcontrol *drc_sw_ctl;    /* only used for tumbler -ReneR */
    struct snd_kcontrol *hp_detect_ctl;
    struct snd_kcontrol *lineout_sw_ctl;

    /* lowlevel callbacks */
    void (*set_format)(struct snd_pmac *chip);
    void (*update_automute)(struct snd_pmac *chip, int do_notify);
    int (*detect_headphone)(struct snd_pmac *chip);
#ifdef CONFIG_PM
    void (*suspend)(struct snd_pmac *chip);
    void (*resume)(struct snd_pmac *chip);
#endif

};


/* exported functions */
int snd_pmac_new(struct snd_card *card, struct snd_pmac **chip_return);
int snd_pmac_pcm_new(struct snd_pmac *chip);
int snd_pmac_attach_beep(struct snd_pmac *chip);
void snd_pmac_detach_beep(struct snd_pmac *chip);
void snd_pmac_beep_stop(struct snd_pmac *chip);
unsigned int snd_pmac_rate_index(struct snd_pmac *chip, struct pmac_stream *rec, unsigned int rate);

void snd_pmac_beep_dma_start(struct snd_pmac *chip, int bytes, unsigned long addr, int speed);
void snd_pmac_beep_dma_stop(struct snd_pmac *chip);

#ifdef CONFIG_PM
void snd_pmac_suspend(struct snd_pmac *chip);
void snd_pmac_resume(struct snd_pmac *chip);
#endif

/* initialize mixer */
int snd_pmac_awacs_init(struct snd_pmac *chip);
int snd_pmac_burgundy_init(struct snd_pmac *chip);
int snd_pmac_daca_init(struct snd_pmac *chip);
int snd_pmac_tumbler_init(struct snd_pmac *chip);
int snd_pmac_tumbler_post_init(void);

/* i2c functions */
struct pmac_keywest {
    int addr;
    struct i2c_client *client;
    int id;
    int (*init_client)(struct pmac_keywest *i2c);
    char *name;
};

int snd_pmac_keywest_init(struct pmac_keywest *i2c);
void snd_pmac_keywest_cleanup(struct pmac_keywest *i2c);

/* misc */
#define snd_pmac_boolean_stereo_info    snd_ctl_boolean_stereo_info
#define snd_pmac_boolean_mono_info  snd_ctl_boolean_mono_info

int snd_pmac_add_automute(struct snd_pmac *chip);

#endif /* __PMAC_H */