Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * linux/drivers/sound/vidc.h | |
3 | * | |
4 | * Copyright (C) 1997 Russell King <rmk@arm.linux.org.uk> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | * | |
10 | * VIDC sound function prototypes | |
11 | */ | |
12 | ||
13 | /* vidc.c */ | |
14 | ||
15 | extern int vidc_busy; | |
16 | ||
17 | /* vidc_fill.S */ | |
18 | ||
19 | /* | |
20 | * Filler routines for different channels and sample sizes | |
21 | */ | |
22 | ||
23 | extern unsigned long vidc_fill_1x8_u(unsigned long ibuf, unsigned long iend, | |
24 | unsigned long obuf, int mask); | |
25 | extern unsigned long vidc_fill_2x8_u(unsigned long ibuf, unsigned long iend, | |
26 | unsigned long obuf, int mask); | |
27 | extern unsigned long vidc_fill_1x8_s(unsigned long ibuf, unsigned long iend, | |
28 | unsigned long obuf, int mask); | |
29 | extern unsigned long vidc_fill_2x8_s(unsigned long ibuf, unsigned long iend, | |
30 | unsigned long obuf, int mask); | |
31 | extern unsigned long vidc_fill_1x16_s(unsigned long ibuf, unsigned long iend, | |
32 | unsigned long obuf, int mask); | |
33 | extern unsigned long vidc_fill_2x16_s(unsigned long ibuf, unsigned long iend, | |
34 | unsigned long obuf, int mask); | |
35 | ||
36 | /* | |
37 | * DMA Interrupt handler | |
38 | */ | |
39 | ||
40 | extern irqreturn_t vidc_sound_dma_irq(int irqnr, void *ref, struct pt_regs *regs); | |
41 | ||
42 | /* | |
43 | * Filler routine pointer | |
44 | */ | |
45 | ||
46 | extern unsigned long (*vidc_filler) (unsigned long ibuf, unsigned long iend, | |
47 | unsigned long obuf, int mask); | |
48 | ||
49 | /* | |
50 | * Virtual DMA buffer exhausted | |
51 | */ | |
52 | ||
53 | extern irqreturn_t (*dma_interrupt) (void); | |
54 | ||
55 | /* | |
56 | * Virtual DMA buffer addresses | |
57 | */ | |
58 | ||
59 | extern unsigned long dma_start, dma_count, dma_bufsize; | |
60 | extern unsigned long dma_buf[2], dma_pbuf[2]; | |
61 | ||
62 | /* vidc_synth.c */ | |
63 | ||
64 | extern void vidc_synth_init(struct address_info *hw_config); | |
65 | extern void vidc_synth_exit(struct address_info *hw_config); | |
66 | extern int vidc_synth_get_volume(void); | |
67 | extern int vidc_synth_set_volume(int vol); |