aboutsummaryrefslogtreecommitdiff
path: root/sound/oss/vidc.h
diff options
context:
space:
mode:
Diffstat (limited to 'sound/oss/vidc.h')
-rw-r--r--sound/oss/vidc.h67
1 files changed, 67 insertions, 0 deletions
diff --git a/sound/oss/vidc.h b/sound/oss/vidc.h
new file mode 100644
index 00000000000..bab7044572d
--- /dev/null
+++ b/sound/oss/vidc.h
@@ -0,0 +1,67 @@
+/*
+ * 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);