1 /* $NetBSD: cs4231var.h,v 1.10 2011/11/23 23:07:32 jmcneill 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _DEV_IC_CS4231VAR_H_ 33 #define _DEV_IC_CS4231VAR_H_ 34 35 #define AUDIOCS_PROM_NAME "SUNW,CS4231" 36 37 /* 38 * List of device memory allocations (see cs4231_malloc/cs4231_free). 39 */ 40 struct cs_dma { 41 struct cs_dma *next; 42 void * addr; 43 bus_dmamap_t dmamap; 44 bus_dma_segment_t segs[1]; 45 int nsegs; 46 size_t size; 47 }; 48 49 50 /* 51 * DMA transfer to/from CS4231. 52 */ 53 struct cs_transfer { 54 int t_active; /* this transfer is currently active */ 55 struct cs_dma *t_dma; /* dma memory to transfer from/to */ 56 vsize_t t_segsz; /* size of the segment */ 57 vsize_t t_blksz; /* call audio(9) after this many bytes */ 58 vsize_t t_cnt; /* how far are we into the segment */ 59 60 void (*t_intr)(void*); /* audio(9) callback */ 61 void *t_arg; 62 63 const char *t_name; /* for error/debug messages */ 64 65 struct evcnt t_intrcnt; 66 struct evcnt t_ierrcnt; 67 }; 68 69 70 /* 71 * Software state, per CS4231 audio chip. 72 */ 73 struct cs4231_softc { 74 struct ad1848_softc sc_ad1848; /* base device */ 75 76 bus_space_tag_t sc_bustag; 77 bus_dma_tag_t sc_dmatag; 78 79 struct cs_dma *sc_dmas; /* allocated dma resources */ 80 81 struct evcnt sc_intrcnt; /* parent counter */ 82 83 struct cs_transfer sc_playback; 84 struct cs_transfer sc_capture; 85 }; 86 87 88 /* 89 * Bus independent code shared by sbus and ebus attachments. 90 */ 91 void cs4231_common_attach(struct cs4231_softc *, device_t, 92 bus_space_handle_t); 93 int cs4231_transfer_init(struct cs4231_softc *, struct cs_transfer *, 94 bus_addr_t *, bus_size_t *, 95 void *, void *, int, void (*)(void *), void *); 96 void cs4231_transfer_advance(struct cs_transfer *, 97 bus_addr_t *, bus_size_t *); 98 99 100 /* 101 * Bus independent audio(9) methods. 102 */ 103 int cs4231_open(void *, int); 104 void cs4231_close(void *); 105 int cs4231_getdev(void *, struct audio_device *); 106 int cs4231_set_port(void *, mixer_ctrl_t *); 107 int cs4231_get_port(void *, mixer_ctrl_t *); 108 int cs4231_query_devinfo(void *, mixer_devinfo_t *); 109 int cs4231_get_props(void *); 110 111 void *cs4231_malloc(void *, int, size_t); 112 void cs4231_free(void *, void *, size_t); 113 114 #endif /* _DEV_IC_CS4231VAR_H_ */ 115