patch-2.1.94 linux/drivers/sound/vidc.h

• Lines: 69
• Date: Wed Apr 8 17:24:48 1998
• Orig file: v2.1.93/linux/drivers/sound/vidc.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.93/linux/drivers/sound/vidc.h linux/drivers/sound/vidc.h
@@ -0,0 +1,68 @@
+/*
+ * drivers/sound/vidc.h
+ *
+ * VIDC sound function prototypes
+ *
+ * Copyright (C) 1997 Russell King <rmk@arm.uk.linux.org>
+ */
+
+/* vidc.c */
+
+extern int vidc_busy;
+
+/* vidc_fill.S */
+
+/*
+ * Filler routines for different channels and sample sizes
+ */
+
+extern unsigned long vidc_fill_1x8(unsigned long ibuf, unsigned long iend,
+				   unsigned long obuf, int mask);
+extern unsigned long vidc_fill_2x8(unsigned long ibuf, unsigned long iend,
+				   unsigned long obuf, int mask);
+extern unsigned long vidc_fill_1x16(unsigned long ibuf, unsigned long iend,
+				    unsigned long obuf, int mask);
+extern unsigned long vidc_fill_2x16(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);