75 lines
2.4 KiB
C
75 lines
2.4 KiB
C
/* $NetBSD: pxa2x0_i2s.h,v 1.5 2012/11/12 18:00:38 skrll Exp $ */
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/* $OpenBSD: pxa2x0_i2s.h,v 1.3 2006/04/04 11:45:40 pascoe Exp $ */
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/*
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* Copyright (c) 2005 Uwe Stuehler <uwe@bsdx.de>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _PXA2X0_I2S_H_
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#define _PXA2X0_I2S_H_
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#include <sys/bus.h>
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struct pxa2x0_i2s_dma;
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struct audio_params;
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struct pxa2x0_i2s_softc {
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kmutex_t *sc_intr_lock;
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bus_space_tag_t sc_iot;
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bus_space_handle_t sc_ioh;
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bus_size_t sc_size;
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bus_dma_tag_t sc_dmat;
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int sc_open;
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uint32_t sc_sadiv;
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struct pxa2x0_i2s_dma *sc_dmas;
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/* Dummy DMA segment which points to the I2S SADR */
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bus_dma_segment_t sc_dr;
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/* PCM Output (Tx) state */
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struct pxa2x0_i2s_dma *sc_txdma;
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void (*sc_txfunc)(void *);
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void *sc_txarg;
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/* PCM Input (Rx) state */
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struct pxa2x0_i2s_dma *sc_rxdma;
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void (*sc_rxfunc)(void *);
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void *sc_rxarg;
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};
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void pxa2x0_i2s_init(struct pxa2x0_i2s_softc *sc);
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int pxa2x0_i2s_attach_sub(struct pxa2x0_i2s_softc *);
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int pxa2x0_i2s_detach_sub(struct pxa2x0_i2s_softc *);
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void pxa2x0_i2s_open(struct pxa2x0_i2s_softc *);
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void pxa2x0_i2s_close(struct pxa2x0_i2s_softc *);
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void pxa2x0_i2s_write(struct pxa2x0_i2s_softc *, uint32_t);
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void pxa2x0_i2s_setspeed(struct pxa2x0_i2s_softc *, u_int *);
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void * pxa2x0_i2s_allocm(void *, int, size_t);
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void pxa2x0_i2s_freem(void *, void *, size_t);
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paddr_t pxa2x0_i2s_mappage(void *, void *, off_t, int);
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int pxa2x0_i2s_round_blocksize(void *, int, int, const struct audio_params *);
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size_t pxa2x0_i2s_round_buffersize(void *, int, size_t);
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int pxa2x0_i2s_halt_output(void *);
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int pxa2x0_i2s_halt_input(void *);
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int pxa2x0_i2s_start_output(void *, void *, int, void (*)(void *), void *);
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int pxa2x0_i2s_start_input(void *, void *, int, void (*)(void *), void *);
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#endif
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