You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
63 lines
1.8 KiB
63 lines
1.8 KiB
/*
|
|
* 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_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);
|
|
|