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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 | /* * sound/opl3sa.c * * Low level driver for Yamaha YMF701B aka OPL3-SA chip * * * * 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: * Alan Cox Modularisation * * FIXME: * Check for install of mpu etc is wrong, should check result of the mss stuff */ #include <linux/config.h> #include <linux/module.h> #undef SB_OK #include "sound_config.h" #include "soundmodule.h" #ifdef SB_OK #include "sb.h" static int sb_initialized = 0; #endif #ifdef CONFIG_OPL3SA1 static int kilroy_was_here = 0; /* Don't detect twice */ static int mpu_initialized = 0; static int *opl3sa_osp = NULL; static unsigned char opl3sa_read(int addr) { unsigned long flags; unsigned char tmp; save_flags(flags); cli(); outb((0x1d), 0xf86); /* password */ outb(((unsigned char) addr), 0xf86); /* address */ tmp = inb(0xf87); /* data */ restore_flags(flags); return tmp; } static void opl3sa_write(int addr, int data) { unsigned long flags; save_flags(flags); cli(); outb((0x1d), 0xf86); /* password */ outb(((unsigned char) addr), 0xf86); /* address */ outb(((unsigned char) data), 0xf87); /* data */ restore_flags(flags); } static int opl3sa_detect(void) { int tmp; if (((tmp = opl3sa_read(0x01)) & 0xc4) != 0x04) { DDB(printk("OPL3-SA detect error 1 (%x)\n", opl3sa_read(0x01))); /* return 0; */ } /* * Check that the password feature has any effect */ if (inb(0xf87) == tmp) { DDB(printk("OPL3-SA detect failed 2 (%x/%x)\n", tmp, inb(0xf87))); return 0; } tmp = (opl3sa_read(0x04) & 0xe0) >> 5; if (tmp != 0 && tmp != 1) { DDB(printk("OPL3-SA detect failed 3 (%d)\n", tmp)); return 0; } DDB(printk("OPL3-SA mode %x detected\n", tmp)); opl3sa_write(0x01, 0x00); /* Disable MSS */ opl3sa_write(0x02, 0x00); /* Disable SB */ opl3sa_write(0x03, 0x00); /* Disable MPU */ return 1; } /* * Probe and attach routines for the Windows Sound System mode of * OPL3-SA */ int probe_opl3sa_wss(struct address_info *hw_config) { int ret; unsigned char tmp = 0x24; /* WSS enable */ if (check_region(0xf86, 2)) /* Control port is busy */ return 0; /* * Check if the IO port returns valid signature. The original MS Sound * system returns 0x04 while some cards (OPL3-SA for example) * return 0x00. */ if (check_region(hw_config->io_base, 8)) { printk(KERN_ERR "OPL3-SA: MSS I/O port conflict (%x)\n", hw_config->io_base); return 0; } opl3sa_osp = hw_config->osp; if (!opl3sa_detect()) { printk(KERN_ERR "OSS: OPL3-SA chip not found\n"); return 0; } switch (hw_config->io_base) { case 0x530: tmp |= 0x00; break; case 0xe80: tmp |= 0x08; break; case 0xf40: tmp |= 0x10; break; case 0x604: tmp |= 0x18; break; default: printk(KERN_ERR "OSS: Unsupported OPL3-SA/WSS base %x\n", hw_config->io_base); return 0; } opl3sa_write(0x01, tmp); /* WSS setup register */ kilroy_was_here = 1; ret = probe_ms_sound(hw_config); if (ret) request_region(0xf86, 2, "OPL3-SA"); return ret; } void attach_opl3sa_wss(struct address_info *hw_config) { int nm = num_mixers; attach_ms_sound(hw_config); if (num_mixers > nm) /* A mixer was installed */ { AD1848_REROUTE(SOUND_MIXER_LINE1, SOUND_MIXER_CD); AD1848_REROUTE(SOUND_MIXER_LINE2, SOUND_MIXER_SYNTH); AD1848_REROUTE(SOUND_MIXER_LINE3, SOUND_MIXER_LINE); } } void attach_opl3sa_mpu(struct address_info *hw_config) { #if defined(CONFIG_UART401) && defined(CONFIG_MIDI) hw_config->name = "OPL3-SA (MPU401)"; attach_uart401(hw_config); #endif } int probe_opl3sa_mpu(struct address_info *hw_config) { #if defined(CONFIG_UART401) && defined(CONFIG_MIDI) unsigned char conf; static char irq_bits[] = { -1, -1, -1, -1, -1, 1, -1, 2, -1, 3, 4 }; if (!kilroy_was_here) return 0; /* OPL3-SA has not been detected earlier */ if (mpu_initialized) { DDB(printk("OPL3-SA: MPU mode already initialized\n")); return 0; } if (check_region(hw_config->io_base, 4)) { printk(KERN_ERR "OPL3-SA: MPU I/O port conflict (%x)\n", hw_config->io_base); return 0; } if (hw_config->irq > 10) { printk(KERN_ERR "OPL3-SA: Bad MPU IRQ %d\n", hw_config->irq); return 0; } if (irq_bits[hw_config->irq] == -1) { printk(KERN_ERR "OPL3-SA: Bad MPU IRQ %d\n", hw_config->irq); return 0; } switch (hw_config->io_base) { case 0x330: conf = 0x00; break; case 0x332: conf = 0x20; break; case 0x334: conf = 0x40; break; case 0x300: conf = 0x60; break; default: return 0; /* Invalid port */ } conf |= 0x83; /* MPU & OPL3 (synth) & game port enable */ conf |= irq_bits[hw_config->irq] << 2; opl3sa_write(0x03, conf); mpu_initialized = 1; return probe_uart401(hw_config); #else return 0; #endif } void unload_opl3sa_wss(struct address_info *hw_config) { int dma2 = hw_config->dma2; if (dma2 == -1) dma2 = hw_config->dma; release_region(0xf86, 2); release_region(hw_config->io_base, 4); ad1848_unload(hw_config->io_base + 4, hw_config->irq, hw_config->dma, dma2, 0); } void unload_opl3sa_mpu(struct address_info *hw_config) { #if defined(CONFIG_UART401) && defined(CONFIG_MIDI) unload_uart401(hw_config); #endif } #ifdef SB_OK void unload_opl3sa_sb(struct address_info *hw_config) { #ifdef CONFIG_SBDSP sb_dsp_unload(hw_config); #endif } #endif #ifdef MODULE int io = -1; int irq = -1; int dma = -1; int dma2 = -1; int mpu_io = -1; int mpu_irq = -1; MODULE_PARM(io,"i"); MODULE_PARM(irq,"i"); MODULE_PARM(dma,"i"); MODULE_PARM(dma2,"i"); MODULE_PARM(mpu_io,"i"); MODULE_PARM(mpu_irq,"i"); struct address_info cfg; struct address_info mpu_cfg; static int found_mpu; int init_module(void) { if (io == -1 || irq == -1 || dma == -1) { printk(KERN_ERR "opl3sa: dma, irq and io must be set.\n"); return -EINVAL; } cfg.io_base = io; cfg.irq = irq; cfg.dma = dma; cfg.dma2 = dma2; mpu_cfg.io_base = mpu_io; mpu_cfg.irq = mpu_irq; if (probe_opl3sa_wss(&cfg) == 0) return -ENODEV; found_mpu=probe_opl3sa_mpu(&mpu_cfg); attach_opl3sa_wss(&cfg); if(found_mpu) attach_opl3sa_mpu(&mpu_cfg); SOUND_LOCK; return 0; } void cleanup_module(void) { if(found_mpu) unload_opl3sa_mpu(&mpu_cfg); unload_opl3sa_wss(&cfg); SOUND_LOCK_END; } #endif #endif |