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oxygen.h

#ifndef OXYGEN_H_INCLUDED
#define OXYGEN_H_INCLUDED

#include <linux/mutex.h>
#include <linux/spinlock.h>
#include <linux/wait.h>
#include <linux/workqueue.h>
#include "oxygen_regs.h"

/* 1 << PCM_x == OXYGEN_CHANNEL_x */
#define PCM_A           0
#define PCM_B           1
#define PCM_C           2
#define PCM_SPDIF 3
#define PCM_MULTICH     4
#define PCM_AC97  5
#define PCM_COUNT 6

enum {
      CONTROL_SPDIF_PCM,
      CONTROL_SPDIF_INPUT_BITS,
      CONTROL_MIC_CAPTURE_SWITCH,
      CONTROL_LINE_CAPTURE_SWITCH,
      CONTROL_CD_CAPTURE_SWITCH,
      CONTROL_AUX_CAPTURE_SWITCH,
      CONTROL_COUNT
};

#define OXYGEN_PCI_SUBID(sv, sd) \
      .vendor = PCI_VENDOR_ID_CMEDIA, \
      .device = 0x8788, \
      .subvendor = sv, \
      .subdevice = sd

struct pci_dev;
struct snd_card;
struct snd_pcm_substream;
struct snd_pcm_hardware;
struct snd_pcm_hw_params;
struct snd_kcontrol_new;
struct snd_rawmidi;
struct oxygen_model;

struct oxygen {
      unsigned long addr;
      spinlock_t reg_lock;
      struct mutex mutex;
      struct snd_card *card;
      struct pci_dev *pci;
      struct snd_rawmidi *midi;
      int irq;
      const struct oxygen_model *model;
      void *model_data;
      unsigned int interrupt_mask;
      u8 dac_volume[8];
      u8 dac_mute;
      u8 pcm_active;
      u8 pcm_running;
      u8 dac_routing;
      u8 spdif_playback_enable;
      u8 revision;
      u8 has_ac97_0;
      u8 has_ac97_1;
      u32 spdif_bits;
      u32 spdif_pcm_bits;
      struct snd_pcm_substream *streams[PCM_COUNT];
      struct snd_kcontrol *controls[CONTROL_COUNT];
      struct work_struct spdif_input_bits_work;
      struct work_struct gpio_work;
      wait_queue_head_t ac97_waitqueue;
};

struct oxygen_model {
      const char *shortname;
      const char *longname;
      const char *chip;
      struct module *owner;
      void (*init)(struct oxygen *chip);
      int (*control_filter)(struct snd_kcontrol_new *template);
      int (*mixer_init)(struct oxygen *chip);
      void (*cleanup)(struct oxygen *chip);
      void (*pcm_hardware_filter)(unsigned int channel,
                            struct snd_pcm_hardware *hardware);
      void (*set_dac_params)(struct oxygen *chip,
                         struct snd_pcm_hw_params *params);
      void (*set_adc_params)(struct oxygen *chip,
                         struct snd_pcm_hw_params *params);
      void (*update_dac_volume)(struct oxygen *chip);
      void (*update_dac_mute)(struct oxygen *chip);
      void (*ac97_switch_hook)(struct oxygen *chip, unsigned int codec,
                         unsigned int reg, int mute);
      void (*gpio_changed)(struct oxygen *chip);
      size_t model_data_size;
      u8 dac_channels;
      u8 used_channels;
      u8 function_flags;
      u16 dac_i2s_format;
      u16 adc_i2s_format;
};

/* oxygen_lib.c */

int oxygen_pci_probe(struct pci_dev *pci, int index, char *id, int midi,
                 const struct oxygen_model *model);
void oxygen_pci_remove(struct pci_dev *pci);

/* oxygen_mixer.c */

int oxygen_mixer_init(struct oxygen *chip);
void oxygen_update_dac_routing(struct oxygen *chip);
void oxygen_update_spdif_source(struct oxygen *chip);

/* oxygen_pcm.c */

int oxygen_pcm_init(struct oxygen *chip);

/* oxygen_io.c */

u8 oxygen_read8(struct oxygen *chip, unsigned int reg);
u16 oxygen_read16(struct oxygen *chip, unsigned int reg);
u32 oxygen_read32(struct oxygen *chip, unsigned int reg);
void oxygen_write8(struct oxygen *chip, unsigned int reg, u8 value);
void oxygen_write16(struct oxygen *chip, unsigned int reg, u16 value);
void oxygen_write32(struct oxygen *chip, unsigned int reg, u32 value);
void oxygen_write8_masked(struct oxygen *chip, unsigned int reg,
                    u8 value, u8 mask);
void oxygen_write16_masked(struct oxygen *chip, unsigned int reg,
                     u16 value, u16 mask);
void oxygen_write32_masked(struct oxygen *chip, unsigned int reg,
                     u32 value, u32 mask);

u16 oxygen_read_ac97(struct oxygen *chip, unsigned int codec,
                 unsigned int index);
void oxygen_write_ac97(struct oxygen *chip, unsigned int codec,
                   unsigned int index, u16 data);
void oxygen_write_ac97_masked(struct oxygen *chip, unsigned int codec,
                        unsigned int index, u16 data, u16 mask);

void oxygen_write_spi(struct oxygen *chip, u8 control, unsigned int data);

static inline void oxygen_set_bits8(struct oxygen *chip,
                            unsigned int reg, u8 value)
{
      oxygen_write8_masked(chip, reg, value, value);
}

static inline void oxygen_set_bits16(struct oxygen *chip,
                             unsigned int reg, u16 value)
{
      oxygen_write16_masked(chip, reg, value, value);
}

static inline void oxygen_set_bits32(struct oxygen *chip,
                             unsigned int reg, u32 value)
{
      oxygen_write32_masked(chip, reg, value, value);
}

static inline void oxygen_clear_bits8(struct oxygen *chip,
                              unsigned int reg, u8 value)
{
      oxygen_write8_masked(chip, reg, 0, value);
}

static inline void oxygen_clear_bits16(struct oxygen *chip,
                               unsigned int reg, u16 value)
{
      oxygen_write16_masked(chip, reg, 0, value);
}

static inline void oxygen_clear_bits32(struct oxygen *chip,
                               unsigned int reg, u32 value)
{
      oxygen_write32_masked(chip, reg, 0, value);
}

static inline void oxygen_ac97_set_bits(struct oxygen *chip, unsigned int codec,
                              unsigned int index, u16 value)
{
      oxygen_write_ac97_masked(chip, codec, index, value, value);
}

static inline void oxygen_ac97_clear_bits(struct oxygen *chip,
                                unsigned int codec,
                                unsigned int index, u16 value)
{
      oxygen_write_ac97_masked(chip, codec, index, 0, value);
}

#endif

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