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/*

 *  linux/drivers/sound/vidc.h

 *

 *  Copyright (C) 1997 Russell King <rmk@arm.linux.org.uk>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 *

 *  VIDC sound function prototypes

 */

/* 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_synth.c */

extern void     vidc_synth_init(struct address_info *hw_config);

extern void     vidc_synth_exit(struct address_info *hw_config);

extern int      vidc_synth_get_volume(void);

extern int      vidc_synth_set_volume(int vol);