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/*

 * sound/vidc.h

 *

 * VIDC sound function prototypes

 *

 * Copyright (C) 1997 Russell King

 */

/* vidc.c */

extern int vidc_busy;

/* vidc_fill.S */

/*

 * Filler routines for different channels and sample sizes

 */

extern unsigned long vidc_fill_1x8_u(unsigned long ibuf, unsigned long iend,

                                     unsigned long obuf, int mask);

extern unsigned long vidc_fill_2x8_u(unsigned long ibuf, unsigned long iend,

                                     unsigned long obuf, int mask);

extern unsigned long vidc_fill_1x8_s(unsigned long ibuf, unsigned long iend,

                                     unsigned long obuf, int mask);

extern unsigned long vidc_fill_2x8_s(unsigned long ibuf, unsigned long iend,

                                     unsigned long obuf, int mask);

extern unsigned long vidc_fill_1x16_s(unsigned long ibuf, unsigned long iend,

                                      unsigned long obuf, int mask);

extern unsigned long vidc_fill_2x16_s(unsigned long ibuf, unsigned long iend,

                                      unsigned long obuf, int mask);

/*

 * DMA Interrupt handler

 */

extern void vidc_sound_dma_irq (int irqnr, void *ref, struct pt_regs *regs);

/*

 * Filler routine pointer

 */

extern unsigned long (*vidc_filler) (unsigned long ibuf, unsigned long iend,

                                     unsigned long obuf, int mask);

/*

 * Virtual DMA buffer exhausted

 */

extern void (*dma_interrupt)(void);

/*

 * Virtual DMA buffer addresses

 */

extern unsigned long dma_start, dma_count, dma_bufsize;

extern unsigned long dma_buf[2], dma_pbuf[2];

/* vidc_audio.c */

extern void vidc_audio_init (struct address_info *hw_config);

extern int  vidc_audio_get_volume (void);

extern int  vidc_audio_set_volume (int vol);

/* vidc_mixer.c */

extern void vidc_mixer_init (struct address_info *hw_config);

/* vidc_synth.c */

extern void vidc_synth_init (struct address_info *hw_config);

extern int  vidc_synth_get_volume (void);

extern int  vidc_synth_set_volume (int vol);