Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 | /* * sound/sgalaxy.c * * Low level driver for Aztech Sound Galaxy cards. * Copyright 1998 Artur Skawina <skawina@geocities.com> * * Supported cards: * Aztech Sound Galaxy Waverider Pro 32 - 3D * Aztech Sound Galaxy Washington 16 * * Based on cs4232.c by Hannu Savolainen and Alan Cox. * * * Copyright (C) by Hannu Savolainen 1993-1997 * * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) * Version 2 (June 1991). See the "COPYING" file distributed with this software * for more info. * * Changes: * 11-10-2000 Bartlomiej Zolnierkiewicz <bkz@linux-ide.org> * Added __init to sb_rst() and sb_cmd() */ #include <linux/init.h> #include <linux/module.h> #include "sound_config.h" #include "ad1848.h" static void sleep( unsigned howlong ) { current->state = TASK_INTERRUPTIBLE; schedule_timeout(howlong); } #define DPORT 0x80 /* Sound Blaster regs */ #define SBDSP_RESET 0x6 #define SBDSP_READ 0xA #define SBDSP_COMMAND 0xC #define SBDSP_STATUS SBDSP_COMMAND #define SBDSP_DATA_AVAIL 0xE static int __init sb_rst(int base) { int i; outb( 1, base+SBDSP_RESET ); /* reset the DSP */ outb( 0, base+SBDSP_RESET ); for ( i=0; i<500; i++ ) /* delay */ inb(DPORT); for ( i=0; i<100000; i++ ) { if ( inb( base+SBDSP_DATA_AVAIL )&0x80 ) break; } if ( inb( base+SBDSP_READ )!=0xAA ) return 0; return 1; } static int __init sb_cmd( int base, unsigned char val ) { int i; for ( i=100000; i; i-- ) { if ( (inb( base+SBDSP_STATUS )&0x80)==0 ) { outb( val, base+SBDSP_COMMAND ); break; } } return i; /* i>0 == success */ } #define ai_sgbase driver_use_1 static int __init probe_sgalaxy( struct address_info *ai ) { if ( check_region( ai->io_base, 8 ) ) { printk(KERN_ERR "sgalaxy: WSS IO port 0x%03x not available\n", ai->io_base); return 0; } if ( ad1848_detect( ai->io_base+4, NULL, ai->osp ) ) return probe_ms_sound(ai); /* The card is already active, check irq etc... */ if ( check_region( ai->ai_sgbase, 0x10 ) ) { printk(KERN_ERR "sgalaxy: SB IO port 0x%03x not available\n", ai->ai_sgbase); return 0; } /* switch to MSS/WSS mode */ sb_rst( ai->ai_sgbase ); sb_cmd( ai->ai_sgbase, 9 ); sb_cmd( ai->ai_sgbase, 0 ); sleep( HZ/10 ); return probe_ms_sound(ai); } static void __init attach_sgalaxy( struct address_info *ai ) { int n; request_region( ai->ai_sgbase, 0x10, "SoundGalaxy SB" ); attach_ms_sound(ai, THIS_MODULE); n=ai->slots[0]; if (n!=-1 && audio_devs[n]->mixer_dev != -1 ) { AD1848_REROUTE( SOUND_MIXER_LINE1, SOUND_MIXER_LINE ); /* Line-in */ AD1848_REROUTE( SOUND_MIXER_LINE2, SOUND_MIXER_SYNTH ); /* FM+Wavetable*/ AD1848_REROUTE( SOUND_MIXER_LINE3, SOUND_MIXER_CD ); /* CD */ } } static void __exit unload_sgalaxy( struct address_info *ai ) { unload_ms_sound( ai ); release_region( ai->ai_sgbase, 0x10 ); } static struct address_info cfg; static int __initdata io = -1; static int __initdata irq = -1; static int __initdata dma = -1; static int __initdata dma2 = -1; static int __initdata sgbase = -1; MODULE_PARM(io,"i"); MODULE_PARM(irq,"i"); MODULE_PARM(dma,"i"); MODULE_PARM(dma2,"i"); MODULE_PARM(sgbase,"i"); static int __init init_sgalaxy(void) { cfg.io_base = io; cfg.irq = irq; cfg.dma = dma; cfg.dma2 = dma2; cfg.ai_sgbase = sgbase; if (cfg.io_base == -1 || cfg.irq == -1 || cfg.dma == -1 || cfg.ai_sgbase == -1 ) { printk(KERN_ERR "sgalaxy: io, irq, dma and sgbase must be set.\n"); return -EINVAL; } if ( probe_sgalaxy(&cfg) == 0 ) return -ENODEV; attach_sgalaxy(&cfg); return 0; } static void __exit cleanup_sgalaxy(void) { unload_sgalaxy(&cfg); } module_init(init_sgalaxy); module_exit(cleanup_sgalaxy); #ifndef MODULE static int __init setup_sgalaxy(char *str) { /* io, irq, dma, dma2, sgbase */ int ints[6]; str = get_options(str, ARRAY_SIZE(ints), ints); io = ints[1]; irq = ints[2]; dma = ints[3]; dma2 = ints[4]; sgbase = ints[5]; return 1; } __setup("sgalaxy=", setup_sgalaxy); #endif MODULE_LICENSE("GPL"); |