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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 | /*****************************************************************************/ /* * wss.c -- Linux soundcard HF FSK driver, * WindowsSoundSystem specific functions. * * Copyright (C) 1997 Thomas Sailer (sailer@ife.ee.ethz.ch) * Swiss Federal Institute of Technology (ETH), Electronics Lab * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * * */ /*****************************************************************************/ #include <linux/types.h> #include <linux/kernel.h> #include <linux/delay.h> #include <linux/errno.h> #include <linux/sched.h> #include <linux/ioport.h> #include <asm/io.h> #include <asm/dma.h> #include <linux/hfmodem.h> /* --------------------------------------------------------------------- */ #define WSS_CONFIG(iobase) (iobase+0) #define WSS_STATUS(iobase) (iobase+3) #define WSS_CODEC_IA(iobase) (iobase+4) #define WSS_CODEC_ID(iobase) (iobase+5) #define WSS_CODEC_STATUS(iobase) (iobase+6) #define WSS_CODEC_DATA(iobase) (iobase+7) #define WSS_EXTENT 8 /* --------------------------------------------------------------------- */ extern const struct hfmodem_scops wss_scops; /* --------------------------------------------------------------------- */ static void write_codec(struct hfmodem_state *dev, unsigned char idx, unsigned char data) { int timeout = 900000; /* wait until codec ready */ while (timeout > 0 && inb(WSS_CODEC_IA(dev->io.base_addr)) & 0x80) timeout--; outb(idx, WSS_CODEC_IA(dev->io.base_addr)); outb(data, WSS_CODEC_ID(dev->io.base_addr)); } /* --------------------------------------------------------------------- */ static unsigned char read_codec(struct hfmodem_state *dev, unsigned char idx) { int timeout = 900000; /* wait until codec ready */ while (timeout > 0 && inb(WSS_CODEC_IA(dev->io.base_addr)) & 0x80) timeout--; outb(idx & 0x1f, WSS_CODEC_IA(dev->io.base_addr)); return inb(WSS_CODEC_ID(dev->io.base_addr)); } /* --------------------------------------------------------------------- */ extern __inline__ void wss_ack_int(struct hfmodem_state *dev) { outb(0, WSS_CODEC_STATUS(dev->io.base_addr)); } /* --------------------------------------------------------------------- */ static int wss_srate_tab[16] = { 8000, 5510, 16000, 11025, 27420, 18900, 32000, 22050, -1, 37800, -1, 44100, 48000, 33075, 9600, 6620 }; static int wss_srate_index(int srate) { int i; for (i = 0; i < (sizeof(wss_srate_tab)/sizeof(wss_srate_tab[0])); i++) if (srate == wss_srate_tab[i] && wss_srate_tab[i] > 0) return i; return -1; } /* --------------------------------------------------------------------- */ static int wss_set_codec_fmt(struct hfmodem_state *dev, unsigned char fmt) { unsigned long time; unsigned long flags; save_flags(flags); cli(); /* Clock and data format register */ write_codec(dev, 0x48, fmt); /* MCE and interface config reg */ write_codec(dev, 0x49, 0xc); outb(0xb, WSS_CODEC_IA(dev->io.base_addr)); /* leave MCE */ /* * wait for ACI start */ time = 1000; while (!(read_codec(dev, 0x0b) & 0x20)) if (!(--time)) { printk(KERN_WARNING "%s: ad1848 auto calibration timed out (1)\n", hfmodem_drvname); restore_flags(flags); return -1; } /* * wait for ACI end */ sti(); time = jiffies + HZ/4; while ((read_codec(dev, 0x0b) & 0x20) && ((signed)(jiffies - time) < 0)); restore_flags(flags); if ((signed)(jiffies - time) >= 0) { printk(KERN_WARNING "%s: ad1848 auto calibration timed out (2)\n", hfmodem_drvname); return -1; } return 0; } /* --------------------------------------------------------------------- */ static int wss_init_codec(struct hfmodem_state *dev) { unsigned char tmp, revwss, revid; static const signed char irqtab[16] = { -1, -1, 0x10, -1, -1, -1, -1, 0x08, -1, 0x10, 0x18, 0x20, -1, -1, -1, -1 }; static const signed char dmatab[4] = { 1, 2, -1, 3 }; int fmt; if ((fmt = wss_srate_index(HFMODEM_SRATE)) < 0) { printk(KERN_ERR "%s: WSS: sampling rate not supported\n", hfmodem_drvname); return -1; } fmt &= 0x0f; #ifdef __BIG_ENDIAN fmt |= 0xc0; #else /* __BIG_ENDIAN */ fmt |= 0x40; #endif /* __BIG_ENDIAN */ tmp = inb(WSS_STATUS(dev->io.base_addr)); if ((tmp & 0x3f) != 0x04 && (tmp & 0x3f) != 0x00 && (tmp & 0x3f) != 0x0f) { printk(KERN_WARNING "%s: WSS card id register not found, " "address 0x%x, ID register 0x%02x\n", hfmodem_drvname, dev->io.base_addr, (int)tmp); /* return -1; */ revwss = 0; } else { if ((tmp & 0x80) && ((dev->io.dma == 0) || ((dev->io.irq >= 8) && (dev->io.irq != 9)))) { printk(KERN_ERR "%s: WSS: DMA0 and/or IRQ8..IRQ15 " "(except IRQ9) cannot be used on an 8bit " "card\n", hfmodem_drvname); return -1; } if (dev->io.irq > 15 || irqtab[dev->io.irq] == -1) { printk(KERN_ERR "%s: WSS: invalid interrupt %d\n", hfmodem_drvname, (int)dev->io.irq); return -1; } if (dev->io.dma > 3 || dmatab[dev->io.dma] == -1) { printk(KERN_ERR "%s: WSS: invalid dma channel %d\n", hfmodem_drvname, (int)dev->io.dma); return -1; } tmp = irqtab[dev->io.irq] | dmatab[dev->io.dma]; /* irq probe */ outb((tmp & 0x38) | 0x40, WSS_CONFIG(dev->io.base_addr)); if (!(inb(WSS_STATUS(dev->io.base_addr)) & 0x40)) { outb(0, WSS_CONFIG(dev->io.base_addr)); printk(KERN_ERR "%s: WSS: IRQ%d is not free!\n", hfmodem_drvname, dev->io.irq); } outb(tmp, WSS_CONFIG(dev->io.base_addr)); revwss = inb(WSS_STATUS(dev->io.base_addr)) & 0x3f; } /* * initialize the codec */ write_codec(dev, 9, 0); write_codec(dev, 12, 0); write_codec(dev, 0, 0x45); if (read_codec(dev, 0) != 0x45) goto codec_err; write_codec(dev, 0, 0xaa); if (read_codec(dev, 0) != 0xaa) goto codec_err; if (wss_set_codec_fmt(dev, fmt)) goto codec_err; write_codec(dev, 0, 0x40); /* left input control */ write_codec(dev, 1, 0x40); /* right input control */ write_codec(dev, 2, 0x80); /* left aux#1 input control */ write_codec(dev, 3, 0x80); /* right aux#1 input control */ write_codec(dev, 4, 0x80); /* left aux#2 input control */ write_codec(dev, 5, 0x80); /* right aux#2 input control */ write_codec(dev, 6, 0x80); /* left dac control */ write_codec(dev, 7, 0x80); /* right dac control */ write_codec(dev, 0xa, 0x2); /* pin control register */ write_codec(dev, 0xd, 0x0); /* digital mix control */ revid = read_codec(dev, 0xc) & 0xf; /* * print revisions */ printk(KERN_INFO "%s: WSS revision %d, CODEC revision %d\n", hfmodem_drvname, (int)revwss, (int)revid); return 0; codec_err: outb(0, WSS_CONFIG(dev->io.base_addr)); printk(KERN_ERR "%s: no WSS soundcard found at address 0x%x\n", hfmodem_drvname, dev->io.base_addr); return -1; } /* --------------------------------------------------------------------- */ int hfmodem_wssprobe(struct hfmodem_state *dev) { if (dev->io.base_addr <= 0 || dev->io.base_addr > 0x1000-WSS_EXTENT || dev->io.irq < 2 || dev->io.irq > 15 || dev->io.dma > 3 || dev->io.dma == 2) return -ENXIO; if (check_region(dev->io.base_addr, WSS_EXTENT)) return -EACCES; /* * check if a card is available */ if (wss_init_codec(dev)) { printk(KERN_ERR "%s: sbc: no card at io address 0x%x\n", hfmodem_drvname, dev->io.base_addr); return -ENODEV; } dev->scops = &wss_scops; return 0; } /* --------------------------------------------------------------------- */ static void wss_init(struct hfmodem_state *dev) { wss_init_codec(dev); } /* --------------------------------------------------------------------- */ static void wss_stop(struct hfmodem_state *dev) { unsigned long flags; unsigned char oldcodecmode; long abrt; save_flags(flags); cli(); /* * perform the final DMA sequence to disable the codec request */ oldcodecmode = read_codec(dev, 9); write_codec(dev, 9, 0xc); /* disable codec */ wss_ack_int(dev); if (read_codec(dev, 11) & 0x10) { disable_dma(dev->io.dma); clear_dma_ff(dev->io.dma); set_dma_mode(dev->io.dma, (oldcodecmode & 1) ? (DMA_MODE_WRITE | DMA_MODE_AUTOINIT) : (DMA_MODE_READ | DMA_MODE_AUTOINIT)); set_dma_addr(dev->io.dma, virt_to_bus(dev->dma.buf)); set_dma_count(dev->io.dma, HFMODEM_NUMFRAGS * HFMODEM_FRAGSIZE); enable_dma(dev->io.dma); abrt = 0; while ((read_codec(dev, 11) & 0x10) || ((++abrt) >= 0x10000)); } disable_dma(dev->io.dma); restore_flags(flags); } /* --------------------------------------------------------------------- */ static void wss_prepare_input(struct hfmodem_state *dev) { unsigned long flags; wss_stop(dev); save_flags(flags); cli(); disable_dma(dev->io.dma); clear_dma_ff(dev->io.dma); set_dma_mode(dev->io.dma, DMA_MODE_READ | DMA_MODE_AUTOINIT); set_dma_addr(dev->io.dma, virt_to_bus(dev->dma.buf)); set_dma_count(dev->io.dma, HFMODEM_NUMFRAGS * HFMODEM_FRAGSIZE); enable_dma(dev->io.dma); write_codec(dev, 15, (HFMODEM_FRAGSAMPLES-1) & 0xff); write_codec(dev, 14, (HFMODEM_FRAGSAMPLES-1) >> 8); restore_flags(flags); } /* --------------------------------------------------------------------- */ static void wss_trigger_input(struct hfmodem_state *dev) { unsigned long flags; save_flags(flags); cli(); write_codec(dev, 9, 0x0e); restore_flags(flags); } /* --------------------------------------------------------------------- */ static void wss_prepare_output(struct hfmodem_state *dev) { unsigned long flags; wss_stop(dev); save_flags(flags); cli(); disable_dma(dev->io.dma); clear_dma_ff(dev->io.dma); set_dma_mode(dev->io.dma, DMA_MODE_WRITE | DMA_MODE_AUTOINIT); set_dma_addr(dev->io.dma, virt_to_bus(dev->dma.buf)); set_dma_count(dev->io.dma, HFMODEM_NUMFRAGS * HFMODEM_FRAGSIZE); enable_dma(dev->io.dma); write_codec(dev, 15, (HFMODEM_FRAGSAMPLES-1) & 0xff); write_codec(dev, 14, (HFMODEM_FRAGSAMPLES-1) >> 8); restore_flags(flags); } /* --------------------------------------------------------------------- */ static void wss_trigger_output(struct hfmodem_state *dev) { unsigned long flags; save_flags(flags); cli(); write_codec(dev, 9, 0x0d); restore_flags(flags); } /* --------------------------------------------------------------------- */ static unsigned int wss_intack(struct hfmodem_state *dev) { unsigned int dmaptr, nums; unsigned long flags; save_flags(flags); cli(); wss_ack_int(dev); disable_dma(dev->io.dma); clear_dma_ff(dev->io.dma); dmaptr = get_dma_residue(dev->io.dma); if (dmaptr == 0 || dmaptr > HFMODEM_NUMFRAGS * HFMODEM_FRAGSIZE) dmaptr = HFMODEM_NUMFRAGS * HFMODEM_FRAGSIZE; nums = (((dmaptr - 1) % HFMODEM_FRAGSIZE) - 1) / 2; write_codec(dev, 15, nums & 0xff); write_codec(dev, 14, nums >> 8); enable_dma(dev->io.dma); restore_flags(flags); return (HFMODEM_NUMFRAGS * HFMODEM_FRAGSIZE - dmaptr) / 2; } /* --------------------------------------------------------------------- */ static void wss_mixer(struct hfmodem_state *dev, int src, int igain, int ogain) { unsigned long flags; static const unsigned char srctoreg[3] = { 1, 2, 0 }; static const unsigned char regtosrc[4] = { 2, 0, 1, 0 }; unsigned char tmp; save_flags(flags); cli(); tmp = read_codec(dev, 0x00); if (src < 0 || src > 2) src = regtosrc[(tmp >> 6) & 3]; if (igain < 0 || igain > 255) { if (src == 1) igain = ((tmp & 0xf) + ((tmp & 0x20) ? 13 : 0)) << 3; else igain = (tmp & 0xf) << 4; } if (src == 1) { if (igain > (28<<3)) tmp = 0x2f; else if (igain >= (13<<3)) tmp = 0x20 + (((igain >> 3) - 13) & 0xf); else tmp = (igain >> 3) & 0xf; } else tmp = (igain >> 4) & 0xf; tmp |= srctoreg[src] << 6; write_codec(dev, 0, tmp); write_codec(dev, 1, tmp); if (ogain > 0 && ogain <= 255) { tmp = 63 - (ogain >> 2); write_codec(dev, 6, tmp); write_codec(dev, 7, tmp); } else if (ogain == 0) { write_codec(dev, 6, 0x80); write_codec(dev, 7, 0x80); } restore_flags(flags); } /* --------------------------------------------------------------------- */ static const struct hfmodem_scops wss_scops = { WSS_EXTENT, wss_init, wss_prepare_input, wss_trigger_input, wss_prepare_output, wss_trigger_output, wss_stop, wss_intack, wss_mixer }; /* --------------------------------------------------------------------- */ |