1 /* $NetBSD: cs4231var.h,v 1.2 2002/03/12 04:48:28 uwe Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Paul Kranenburg. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _DEV_IC_CS4231VAR_H_ 40 #define _DEV_IC_CS4231VAR_H_ 41 42 #define AUDIOCS_PROM_NAME "SUNW,CS4231" 43 44 /* 45 * List of device memory allocations (see cs4231_malloc/cs4231_free). 46 */ 47 struct cs_dma { 48 struct cs_dma *next; 49 caddr_t addr; 50 bus_dmamap_t dmamap; 51 bus_dma_segment_t segs[1]; 52 int nsegs; 53 size_t size; 54 }; 55 56 57 /* 58 * DMA transfer to/from CS4231. 59 */ 60 struct cs_transfer { 61 int t_active; /* this transfer is currently active */ 62 struct cs_dma *t_dma; /* dma memory to transfer from/to */ 63 vsize_t t_segsz; /* size of the segment */ 64 vsize_t t_blksz; /* call audio(9) after this many bytes */ 65 vsize_t t_cnt; /* how far are we into the segment */ 66 67 void (*t_intr)(void*); /* audio(9) callback */ 68 void *t_arg; 69 70 const char *t_name; /* for error/debug messages */ 71 72 struct evcnt t_intrcnt; 73 struct evcnt t_ierrcnt; 74 }; 75 76 77 /* 78 * Software state, per CS4231 audio chip. 79 */ 80 struct cs4231_softc { 81 struct ad1848_softc sc_ad1848; /* base device */ 82 83 bus_space_tag_t sc_bustag; 84 bus_dma_tag_t sc_dmatag; 85 86 int sc_open; /* single use device */ 87 struct cs_dma *sc_dmas; /* allocated dma resources */ 88 89 struct evcnt sc_intrcnt; /* parent counter */ 90 91 struct cs_transfer sc_playback; 92 struct cs_transfer sc_capture; 93 }; 94 95 96 /* 97 * Bus independent code shared by sbus and ebus attachments. 98 */ 99 void cs4231_common_attach(struct cs4231_softc *, bus_space_handle_t); 100 int cs4231_transfer_init(struct cs4231_softc *, struct cs_transfer *, 101 bus_addr_t *, bus_size_t *, 102 void *, void *, int, void (*)(void *), void *); 103 void cs4231_transfer_advance(struct cs_transfer *, 104 bus_addr_t *, bus_size_t *); 105 106 107 /* 108 * Bus independent audio(9) methods. 109 */ 110 int cs4231_open(void *, int); 111 void cs4231_close(void *); 112 size_t cs4231_round_buffersize(void *, int, size_t); 113 int cs4231_round_blocksize(void *, int); 114 int cs4231_getdev(void *, struct audio_device *); 115 int cs4231_set_port(void *, mixer_ctrl_t *); 116 int cs4231_get_port(void *, mixer_ctrl_t *); 117 int cs4231_query_devinfo(void *, mixer_devinfo_t *); 118 int cs4231_get_props(void *); 119 120 void *cs4231_malloc(void *, int, size_t, int, int); 121 void cs4231_free(void *, void *, int); 122 123 #endif /* _DEV_IC_CS4231VAR_H_ */ 124