| 1 | /* $NetBSD: esavar.h,v 1.12 2012/10/27 17:18:31 chs Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 2001, 2002 Jared D. McNeill <jmcneill@invisible.ca> |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * 2. The name of the author may not be used to endorse or promote products |
| 13 | * derived from this software without specific prior written permission. |
| 14 | * |
| 15 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 16 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 17 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 18 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 19 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| 20 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 21 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| 22 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 23 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 24 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 25 | * SUCH DAMAGE. |
| 26 | */ |
| 27 | |
| 28 | /* |
| 29 | * ESS Allegro-1 / Maestro3 Audio Driver |
| 30 | * |
| 31 | * Based on the FreeBSD maestro3 driver |
| 32 | * |
| 33 | */ |
| 34 | |
| 35 | /* |
| 36 | * Number of simultaneous voices |
| 37 | * |
| 38 | * NOTE: The current code attaches audio0 thru audioESA_NUM_VOICES-1 |
| 39 | * to this driver, and a lot of people probably don't want that. |
| 40 | * So, we'll default to 1 but we'll allow for the possibility of |
| 41 | * more. |
| 42 | * |
| 43 | * The current MINISRC image limits us to a maximum of 4 simultaneous voices. |
| 44 | */ |
| 45 | #ifndef ESA_NUM_VOICES |
| 46 | #define ESA_NUM_VOICES 1 |
| 47 | #endif |
| 48 | |
| 49 | #define KERNADDR(p) ((void *)((p)->addr)) |
| 50 | #define DMAADDR(p) ((p)->map->dm_segs[0].ds_addr) |
| 51 | |
| 52 | #define ESA_MINRATE 8000 |
| 53 | #define ESA_MAXRATE 48000 |
| 54 | |
| 55 | struct esa_list { |
| 56 | int currlen; |
| 57 | int mem_addr; |
| 58 | int max; |
| 59 | int indexmap[ESA_NUM_VOICES * 2]; |
| 60 | }; |
| 61 | |
| 62 | struct esa_dma { |
| 63 | bus_dmamap_t map; |
| 64 | void * addr; |
| 65 | bus_dma_segment_t segs[1]; |
| 66 | int nsegs; |
| 67 | size_t size; |
| 68 | struct esa_dma *next; |
| 69 | }; |
| 70 | |
| 71 | struct esa_channel { |
| 72 | int active; |
| 73 | int data_offset; |
| 74 | int index; |
| 75 | size_t bufsize; |
| 76 | int blksize; |
| 77 | int pos; |
| 78 | void *buf; |
| 79 | uint32_t start; |
| 80 | uint32_t count; |
| 81 | |
| 82 | /* mode settings */ |
| 83 | struct audio_params mode; |
| 84 | |
| 85 | void (*intr)(void *); |
| 86 | void *arg; |
| 87 | }; |
| 88 | |
| 89 | struct esa_voice { |
| 90 | device_t parent; /* pointer to our parent */ |
| 91 | struct esa_channel play; |
| 92 | struct esa_channel rec; |
| 93 | struct esa_dma *dma; |
| 94 | int inlist; |
| 95 | int index; /* 0: play, 1: record */ |
| 96 | }; |
| 97 | |
| 98 | struct esa_softc |
| 99 | { |
| 100 | device_t sc_dev; |
| 101 | bus_space_tag_t sc_iot; |
| 102 | bus_space_handle_t sc_ioh; |
| 103 | bus_addr_t sc_iob; |
| 104 | bus_size_t sc_ios; |
| 105 | kmutex_t sc_lock; |
| 106 | kmutex_t sc_intr_lock; |
| 107 | |
| 108 | pcitag_t sc_tag; |
| 109 | pci_chipset_tag_t sc_pct; |
| 110 | bus_dma_tag_t sc_dmat; |
| 111 | pcireg_t sc_pcireg; |
| 112 | |
| 113 | void *sc_ih; |
| 114 | |
| 115 | struct ac97_codec_if *codec_if; |
| 116 | struct ac97_host_if host_if; |
| 117 | enum ac97_host_flags codec_flags; |
| 118 | |
| 119 | device_t sc_audiodev[ESA_NUM_VOICES]; |
| 120 | |
| 121 | struct esa_voice voice[ESA_NUM_VOICES]; |
| 122 | struct esa_dma *sc_dmas; |
| 123 | int count; |
| 124 | |
| 125 | /* timer management */ |
| 126 | int sc_ntimers; |
| 127 | |
| 128 | /* packed list structures */ |
| 129 | struct esa_list mixer_list; |
| 130 | struct esa_list adc1_list; |
| 131 | struct esa_list dma_list; |
| 132 | struct esa_list msrc_list; |
| 133 | |
| 134 | int type; /* Allegro-1 or Maestro 3? */ |
| 135 | int delay1, delay2; |
| 136 | |
| 137 | uint16_t *savemem; |
| 138 | size_t savememsz; |
| 139 | }; |
| 140 | |