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#define DSP_RESET       (devc->base + 0x6)

#define DSP_READ        (devc->base + 0xA)

#define DSP_WRITE       (devc->base + 0xC)

#define DSP_COMMAND     (devc->base + 0xC)

#define DSP_STATUS      (devc->base + 0xC)

#define DSP_DATA_AVAIL  (devc->base + 0xE)

#define DSP_DATA_AVL16  (devc->base + 0xF)

#define MIXER_ADDR      (devc->base + 0x4)

#define MIXER_DATA      (devc->base + 0x5)

#define OPL3_LEFT       (devc->base + 0x0)

#define OPL3_RIGHT      (devc->base + 0x2)

#define OPL3_BOTH       (devc->base + 0x8)

/* DSP Commands */

#define DSP_CMD_SPKON           0xD1

#define DSP_CMD_SPKOFF          0xD3

#define DSP_CMD_DMAON           0xD0

#define DSP_CMD_DMAOFF          0xD4

#define IMODE_NONE              0

#define IMODE_OUTPUT            PCM_ENABLE_OUTPUT

#define IMODE_INPUT             PCM_ENABLE_INPUT

#define IMODE_INIT              3

#define IMODE_MIDI              4

#define NORMAL_MIDI     0

#define UART_MIDI       1

/*

 * Device models

 */

#define MDL_NONE        0

#define MDL_SB1         1       /* SB1.0 or 1.5 */

#define MDL_SB2         2       /* SB2.0 */

#define MDL_SB201       3       /* SB2.01 */

#define MDL_SBPRO       4       /* SB Pro */

#define MDL_SB16        5       /* SB16/32/AWE */

#define MDL_JAZZ        10      /* Media Vision Jazz16 */

#define MDL_SMW         11      /* Logitech SoundMan Wave (Jazz16) */

#define MDL_ESS         12      /* ESS ES688 and ES1688 */

#define MDL_AZTECH      13      /* Aztech Sound Galaxy family */

/*

 * Config flags

 */

#define SB_NO_MIDI      0x00000001

#define SB_NO_MIXER     0x00000002

#define SB_NO_AUDIO     0x00000004

#define SB_NO_RECORDING 0x00000008 /* No audio recording */

#define SB_MIDI_ONLY    (SB_NO_AUDIO|SB_NO_MIXER)

struct mixer_def {

        unsigned int regno: 8;

        unsigned int bitoffs:4;

        unsigned int nbits:4;

};

typedef struct mixer_def mixer_tab[32][2];

typedef struct mixer_def mixer_ent;

typedef struct sb_devc {

           int dev;

        /* Hardware parameters */

           int *osp;

           int minor, major;

           int type;

           int model, submodel;

           int caps;

#       define SBCAP_STEREO     0x00000001

#       define SBCAP_16BITS     0x00000002

        /* Hardware resources */

           int base;

           int irq;

           int dma8, dma16;

        /* State variables */

           int opened;

           int speed, bits, channels;

           volatile int irq_ok;

           volatile int intr_active, irq_mode;

        /* Mixer fields */

           unsigned short levels[SOUND_MIXER_NRDEVICES];

           mixer_tab *iomap;

           int mixer_caps, recmask, supported_devices;

           int supported_rec_devices;

           int my_mixerdev;

        /* Audio fields */

           unsigned long trg_buf;

           int      trigger_bits;

           int      trg_bytes;

           int      trg_intrflag;

           int      trg_restart;

           unsigned char tconst;

           int my_dev;

        /* MIDI fields */

           int my_mididev;

           int input_opened;

           void (*midi_input_intr) (int dev, unsigned char data);

        } sb_devc;

int sb_dsp_command (sb_devc *devc, unsigned char val);

int sb_dsp_get_byte (sb_devc *devc);

int sb_dsp_reset (sb_devc *devc);

void sb_setmixer (sb_devc *devc, unsigned int port, unsigned int value);

unsigned int sb_getmixer (sb_devc *devc, unsigned int port);

int sb_dsp_detect (struct address_info *hw_config);

void sb_dsp_init (struct address_info *hw_config);

void sb_dsp_unload(struct address_info *hw_config);

int sb_mixer_init(sb_devc *devc);

void smw_mixer_init(sb_devc *devc);

void sb_dsp_midi_init (sb_devc *devc);

void sb_audio_init (sb_devc *devc, char *name);

void sb_midi_interrupt (sb_devc *devc);

int ess_write (sb_devc *devc, unsigned char reg, unsigned char data);

int ess_read (sb_devc *devc, unsigned char reg);