3a16568016
o Added a control for the input source (which can be either "line" or "mic") o Mute the speaker/line-out/headphone outputs by default. o Increased the buffer size from 10 pages to 16. Signed-off-by: Stuart Brady <sdb@parisc-linux.org> ALSA Harmony was resetting the capture position when preparing the capture substream, which it shouldn't do. This should fix the problem. Signed-off-by: Stuart Brady <sdb@parisc-linux.org> ALSA Harmony should no longer play junk (left in the buffers from a previous stream) at the start of a new stream. Implement the monitor mixer channel for ALSA Harmony. Also prevent snd_harmony_volume_get from returning negative values. Signed-off-by: Stuart Brady <sdb@parisc-linux.org> Use the graveyard/silence buffers in ALSA Harmony. Signed-off-by: Stuart Brady <sdb@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
155 lines
4.8 KiB
C
155 lines
4.8 KiB
C
/* Hewlett-Packard Harmony audio driver
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* Copyright (C) 2004, Kyle McMartin <kyle@parisc-linux.org>
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*/
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#ifndef __HARMONY_H__
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#define __HARMONY_H__
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struct harmony_buffer {
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unsigned long addr;
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int buf;
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int count;
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int size;
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int coherent;
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};
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typedef struct snd_card_harmony {
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int irq;
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unsigned long hpa; /* hard physical address */
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void __iomem *iobase; /* remapped io address */
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struct parisc_device *dev;
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struct {
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u32 gain;
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u32 rate;
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u32 format;
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u32 stereo;
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int playing;
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int capturing;
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} st;
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struct snd_dma_device dma; /* playback/capture */
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struct harmony_buffer pbuf;
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struct harmony_buffer cbuf;
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struct snd_dma_buffer gdma; /* graveyard */
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struct snd_dma_buffer sdma; /* silence */
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struct {
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unsigned long play_intr;
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unsigned long rec_intr;
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unsigned long graveyard_intr;
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unsigned long silence_intr;
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} stats;
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snd_pcm_t *pcm;
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snd_card_t *card;
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snd_pcm_substream_t *psubs;
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snd_pcm_substream_t *csubs;
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snd_info_entry_t *proc;
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spinlock_t lock;
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spinlock_t mixer_lock;
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} harmony_t;
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#define MAX_PCM_DEVICES 1
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#define MAX_PCM_SUBSTREAMS 4
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#define MAX_MIDI_DEVICES 0
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#define HARMONY_SIZE 64
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#define BUF_SIZE PAGE_SIZE
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#define MAX_BUFS 16
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#define MAX_BUF_SIZE (MAX_BUFS * BUF_SIZE)
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#define PLAYBACK_BUFS MAX_BUFS
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#define RECORD_BUFS MAX_BUFS
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#define GRAVEYARD_BUFS 1
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#define GRAVEYARD_BUFSZ (GRAVEYARD_BUFS*BUF_SIZE)
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#define SILENCE_BUFS 1
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#define SILENCE_BUFSZ (SILENCE_BUFS*BUF_SIZE)
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#define HARMONY_ID 0x000
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#define HARMONY_RESET 0x004
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#define HARMONY_CNTL 0x008
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#define HARMONY_GAINCTL 0x00c
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#define HARMONY_PNXTADD 0x010
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#define HARMONY_PCURADD 0x014
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#define HARMONY_RNXTADD 0x018
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#define HARMONY_RCURADD 0x01c
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#define HARMONY_DSTATUS 0x020
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#define HARMONY_OV 0x024
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#define HARMONY_PIO 0x028
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#define HARMONY_DIAG 0x03c
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#define HARMONY_CNTL_C 0x80000000
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#define HARMONY_CNTL_ST 0x00000020
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#define HARMONY_CNTL_44100 0x00000015 /* HARMONY_SR_44KHZ */
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#define HARMONY_CNTL_8000 0x00000008 /* HARMONY_SR_8KHZ */
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#define HARMONY_DSTATUS_ID 0x00000000 /* interrupts off */
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#define HARMONY_DSTATUS_PN 0x00000200 /* playback fill */
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#define HARMONY_DSTATUS_RN 0x00000002 /* record fill */
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#define HARMONY_DSTATUS_IE 0x80000000 /* interrupts on */
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#define HARMONY_DF_16BIT_LINEAR 0x00000000
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#define HARMONY_DF_8BIT_ULAW 0x00000001
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#define HARMONY_DF_8BIT_ALAW 0x00000002
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#define HARMONY_SS_MONO 0x00000000
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#define HARMONY_SS_STEREO 0x00000001
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#define HARMONY_GAIN_SILENCE 0x01F00FFF
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#define HARMONY_GAIN_DEFAULT 0x01F00FFF
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#define HARMONY_GAIN_HE_SHIFT 27 /* headphones enabled */
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#define HARMONY_GAIN_HE_MASK (1 << HARMONY_GAIN_HE_SHIFT)
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#define HARMONY_GAIN_LE_SHIFT 26 /* line-out enabled */
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#define HARMONY_GAIN_LE_MASK (1 << HARMONY_GAIN_LE_SHIFT)
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#define HARMONY_GAIN_SE_SHIFT 25 /* internal-speaker enabled */
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#define HARMONY_GAIN_SE_MASK (1 << HARMONY_GAIN_SE_SHIFT)
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#define HARMONY_GAIN_IS_SHIFT 24 /* input select - 0 for line, 1 for mic */
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#define HARMONY_GAIN_IS_MASK (1 << HARMONY_GAIN_IS_SHIFT)
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/* monitor attenuation */
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#define HARMONY_GAIN_MA 0x0f
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#define HARMONY_GAIN_MA_SHIFT 20
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#define HARMONY_GAIN_MA_MASK (HARMONY_GAIN_MA << HARMONY_GAIN_MA_SHIFT)
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/* input gain */
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#define HARMONY_GAIN_IN 0x0f
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#define HARMONY_GAIN_LI_SHIFT 16
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#define HARMONY_GAIN_LI_MASK (HARMONY_GAIN_IN << HARMONY_GAIN_LI_SHIFT)
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#define HARMONY_GAIN_RI_SHIFT 12
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#define HARMONY_GAIN_RI_MASK (HARMONY_GAIN_IN << HARMONY_GAIN_RI_SHIFT)
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/* output gain (master volume) */
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#define HARMONY_GAIN_OUT 0x3f
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#define HARMONY_GAIN_LO_SHIFT 6
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#define HARMONY_GAIN_LO_MASK (HARMONY_GAIN_OUT << HARMONY_GAIN_LO_SHIFT)
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#define HARMONY_GAIN_RO_SHIFT 0
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#define HARMONY_GAIN_RO_MASK (HARMONY_GAIN_OUT << HARMONY_GAIN_RO_SHIFT)
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#define HARMONY_MAX_OUT (HARMONY_GAIN_RO_MASK >> HARMONY_GAIN_RO_SHIFT)
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#define HARMONY_MAX_IN (HARMONY_GAIN_RI_MASK >> HARMONY_GAIN_RI_SHIFT)
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#define HARMONY_MAX_MON (HARMONY_GAIN_MA_MASK >> HARMONY_GAIN_MA_SHIFT)
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#define HARMONY_SR_8KHZ 0x08
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#define HARMONY_SR_16KHZ 0x09
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#define HARMONY_SR_27KHZ 0x0A
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#define HARMONY_SR_32KHZ 0x0B
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#define HARMONY_SR_48KHZ 0x0E
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#define HARMONY_SR_9KHZ 0x0F
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#define HARMONY_SR_5KHZ 0x10
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#define HARMONY_SR_11KHZ 0x11
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#define HARMONY_SR_18KHZ 0x12
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#define HARMONY_SR_22KHZ 0x13
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#define HARMONY_SR_37KHZ 0x14
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#define HARMONY_SR_44KHZ 0x15
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#define HARMONY_SR_33KHZ 0x16
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#define HARMONY_SR_6KHZ 0x17
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#endif /* __HARMONY_H__ */
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