/*
* 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 irqreturn_t 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 irqreturn_t (*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);
