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 * Driver for PowerMac onboard soundchips
 * Copyright (c) 2001 by Takashi Iwai <tiwai@suse.de>
 *   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
 *   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 <linux/version.h>
#include <sound/control.h>
#include <sound/pcm.h>
#include "awacs.h"

#include <linux/adb.h>
#include <linux/cuda.h>
#include <linux/pmu.h>
#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


 * typedefs
typedef struct snd_pmac pmac_t;
typedef struct snd_pmac_stream pmac_stream_t;
typedef struct snd_pmac_beep pmac_beep_t;
typedef struct snd_pmac_dbdma pmac_dbdma_t;

 * DBDMA space
struct snd_pmac_dbdma {
      unsigned long addr;
      struct dbdma_cmd __iomem *cmds;
      void *space;
      int size;

 * playback/capture stream
struct snd_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;

      pmac_dbdma_t cmd;
      volatile struct dbdma_regs __iomem *dma;

      snd_pcm_substream_t *substream;

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


enum snd_pmac_model {

struct snd_pmac {
      snd_card_t *card;

      /* h/w info */
      struct device_node *node;
      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 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 of_requested;

      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;

      pmac_stream_t playback;
      pmac_stream_t capture;

      pmac_dbdma_t extra_dma;

      int irq, tx_irq, rx_irq;

      snd_pcm_t *pcm;

      pmac_beep_t *beep;

      unsigned int control_mask;    /* control mask */

      /* mixer stuffs */
      void *mixer_data;
      void (*mixer_free)(pmac_t *);
      snd_kcontrol_t *master_sw_ctl;
      snd_kcontrol_t *speaker_sw_ctl;
      snd_kcontrol_t *drc_sw_ctl;   /* only used for tumbler -ReneR */
      snd_kcontrol_t *hp_detect_ctl;

      /* lowlevel callbacks */
      void (*set_format)(pmac_t *chip);
      void (*update_automute)(pmac_t *chip, int do_notify);
      int (*detect_headphone)(pmac_t *chip);
      void (*suspend)(pmac_t *chip);
      void (*resume)(pmac_t *chip);


/* exported functions */
int snd_pmac_new(snd_card_t *card, pmac_t **chip_return);
int snd_pmac_pcm_new(pmac_t *chip);
int snd_pmac_attach_beep(pmac_t *chip);
void snd_pmac_detach_beep(pmac_t *chip);
void snd_pmac_beep_stop(pmac_t *chip);
unsigned int snd_pmac_rate_index(pmac_t *chip, pmac_stream_t *rec, unsigned int rate);

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

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

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

int snd_pmac_keywest_init(pmac_keywest_t *i2c);
void snd_pmac_keywest_cleanup(pmac_keywest_t *i2c);

/* misc */
int snd_pmac_boolean_stereo_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo);
int snd_pmac_boolean_mono_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo);

int snd_pmac_add_automute(pmac_t *chip);

#define big_mdelay(msec) do {\
      schedule_timeout(((msec) * HZ + 999) / 1000);\
} while (0)

#endif /* __PMAC_H */

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