1 //------------------------------------------------------------------------------ 2 // EchoGals/Echo24 BeOS Driver for Echo audio cards 3 // 4 // Copyright (c) 2003, Jérôme Duval 5 // 6 // Permission is hereby granted, free of charge, to any person obtaining a 7 // copy of this software and associated documentation files (the "Software"), 8 // to deal in the Software without restriction, including without limitation 9 // the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 // and/or sell copies of the Software, and to permit persons to whom the 11 // Software is furnished to do so, subject to the following conditions: 12 // 13 // The above copyright notice and this permission notice shall be included in 14 // all copies or substantial portions of the Software. 15 // 16 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22 // DEALINGS IN THE SOFTWARE. 23 24 #ifndef _ECHO_H_ 25 #define _ECHO_H_ 26 27 #include <PCI.h> 28 #include "OsSupportBeOS.h" 29 #include "CEchoGals.h" 30 #include "multi_audio.h" 31 #include "multi.h" 32 #include "queue.h" 33 34 #define AUTHOR "Jérôme Duval" 35 #define DEVNAME 32 36 #define NUM_CARDS 3 37 38 39 /* 40 * Echo midi 41 */ 42 43 typedef struct _midi_dev { 44 int32 count; 45 char name[64]; 46 sem_id midi_ready_sem; 47 ECHOGALS_MIDI_IN_CONTEXT context; 48 } midi_dev; 49 50 #define ECHO_USE_PLAY (1 << 0) 51 #define ECHO_USE_RECORD (1 << 1) 52 #define ECHO_STATE_STARTED (1 << 0) 53 54 /* 55 * Streams 56 */ 57 58 typedef struct _echo_stream { 59 struct _echo_dev *card; 60 uint8 use; 61 uint8 state; 62 uint8 bitsPerSample; 63 uint32 sample_rate; 64 uint8 channels; 65 uint32 bufframes; 66 uint8 bufcount; 67 68 WORD pipe; 69 PDWORD position; 70 71 LIST_ENTRY(_echo_stream) next; 72 73 void (*inth) (void *); 74 void *inthparam; 75 76 echo_mem *buffer; 77 uint16 blksize; /* in samples */ 78 uint16 trigblk; /* blk on which to trigger inth */ 79 uint16 blkmod; /* Modulo value to wrap trigblk */ 80 81 /* multi_audio */ 82 volatile int64 frames_count; // for play or record 83 volatile bigtime_t real_time; // for play or record 84 volatile int32 buffer_cycle; // for play or record 85 int32 first_channel; 86 bool update_needed; 87 } echo_stream; 88 89 90 typedef struct _echo_dev { 91 char name[DEVNAME]; /* used for resources */ 92 pci_info info; 93 94 uint32 bmbar; 95 void * log_bmbar; 96 area_id area_bmbar; 97 uint32 irq; 98 uint16 type; 99 100 PCEchoGals pEG; 101 ECHOGALS_CAPS caps; 102 NUINT mixer; 103 PCOsSupport pOSS; 104 105 void *ptb_log_base; 106 void *ptb_phy_base; 107 area_id ptb_area; 108 109 sem_id buffer_ready_sem; 110 111 LIST_HEAD(, _echo_stream) streams; 112 LIST_HEAD(, _echo_mem) mems; 113 114 echo_stream *pstream; 115 echo_stream *rstream; 116 117 /* multi_audio */ 118 multi_dev multi; 119 #ifdef MIDI_SUPPORT 120 midi_dev midi; 121 #endif 122 } echo_dev; 123 124 extern int32 num_cards; 125 extern echo_dev cards[NUM_CARDS]; 126 127 #ifdef __cplusplus 128 extern "C" { 129 #endif 130 131 status_t echo_stream_set_audioparms(echo_stream *stream, uint8 channels, 132 uint8 bitsPerSample, uint32 sample_ratei, uint8 index); 133 status_t echo_stream_get_nth_buffer(echo_stream *stream, uint8 chan, uint8 buf, 134 char** buffer, size_t *stride); 135 void echo_stream_start(echo_stream *stream, void (*inth) (void *), void *inthparam); 136 void echo_stream_halt(echo_stream *stream); 137 echo_stream *echo_stream_new(echo_dev *card, uint8 use, uint32 bufframes, uint8 bufcount); 138 void echo_stream_delete(echo_stream *stream); 139 140 #ifdef __cplusplus 141 } 142 #endif 143 144 145 #endif /* _ECHO_H_ */ 146