8a962f23f2
the original ad-audiomp branch notes: Add MP locking to the audio drivers. Making the audio drivers MP safe is necessary before efforts can be made to make the VM system MP safe. The are two locks per device instance, an ISR lock and a character device lock. The ISR lock replaces calls to splaudio()/splx(), and will be held across calls to device methods which were called at splaudio() before (e.g. trigger_output). The character device lock is held across calls to nearly all of the methods, excluding some only used for initialization, e.g. get_locks. Welcome to 5.99.57.
85 lines
2.5 KiB
C
85 lines
2.5 KiB
C
/* $NetBSD: am7930var.h,v 1.13 2011/11/23 23:07:32 jmcneill Exp $ */
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struct am7930_softc;
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struct am7930_glue {
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uint8_t (*codec_iread)(struct am7930_softc *sc, int);
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void (*codec_iwrite)(struct am7930_softc *sc, int, uint8_t);
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uint16_t (*codec_iread16)(struct am7930_softc *sc, int);
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void (*codec_iwrite16)(struct am7930_softc *sc, int, uint16_t);
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void (*onopen)(struct am7930_softc *sc);
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void (*onclose)(struct am7930_softc *sc);
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int factor;
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stream_filter_factory_t *input_conv;
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stream_filter_factory_t *output_conv;
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};
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struct am7930_softc {
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device_t sc_dev; /* base device */
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uint8_t sc_rlevel; /* record level */
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uint8_t sc_plevel; /* play level */
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uint8_t sc_mlevel; /* monitor level */
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uint8_t sc_out_port; /* output port */
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uint8_t sc_mic_mute;
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struct am7930_glue *sc_glue;
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kmutex_t sc_lock;
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kmutex_t sc_intr_lock;
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};
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extern int am7930debug;
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void am7930_init(struct am7930_softc *, int);
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#define AM7930_IWRITE(x,y,z) (*(x)->sc_glue->codec_iwrite)((x),(y),(z))
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#define AM7930_IREAD(x,y) (*(x)->sc_glue->codec_iread)((x),(y))
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#define AM7930_IWRITE16(x,y,z) (*(x)->sc_glue->codec_iwrite16)((x),(y),(z))
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#define AM7930_IREAD16(x,y) (*(x)->sc_glue->codec_iread16)((x),(y))
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#define AUDIOAMD_POLL_MODE 0
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#define AUDIOAMD_DMA_MODE 1
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/*
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* audio channel definitions.
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*/
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#define AUDIOAMD_SPEAKER_VOL 0 /* speaker volume */
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#define AUDIOAMD_HEADPHONES_VOL 1 /* headphones volume */
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#define AUDIOAMD_OUTPUT_CLASS 2
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#define AUDIOAMD_MONITOR_VOL 3 /* monitor input volume */
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#define AUDIOAMD_MONITOR_OUTPUT 4 /* output selector */
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#define AUDIOAMD_MONITOR_CLASS 5
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#define AUDIOAMD_MIC_VOL 6 /* microphone volume */
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#define AUDIOAMD_MIC_MUTE 7
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#define AUDIOAMD_INPUT_CLASS 8
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#define AUDIOAMD_RECORD_SOURCE 9 /* source selector */
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#define AUDIOAMD_RECORD_CLASS 10
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/*
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* audio(9) MI callbacks from upper-level audio layer.
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*/
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struct audio_device;
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struct audio_encoding;
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struct audio_params;
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int am7930_open(void *, int);
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void am7930_close(void *);
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int am7930_query_encoding(void *, struct audio_encoding *);
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int am7930_set_params(void *, int, int, audio_params_t *,
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audio_params_t *, stream_filter_list_t *, stream_filter_list_t *);
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int am7930_commit_settings(void *);
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int am7930_round_blocksize(void *, int, int, const audio_params_t *);
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int am7930_halt_output(void *);
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int am7930_halt_input(void *);
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int am7930_getdev(void *, struct audio_device *);
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int am7930_get_props(void *);
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int am7930_set_port(void *, mixer_ctrl_t *);
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int am7930_get_port(void *, mixer_ctrl_t *);
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int am7930_query_devinfo(void *, mixer_devinfo_t *);
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