1 /* $NetBSD: tx39sib.c,v 1.6 2000/03/12 15:42:43 uch Exp $ */ 2 3 /* 4 * Copyright (c) 2000, by UCHIYAMA Yasushi 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 developer 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 AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, 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 /* 30 * TX39 SIB (Serial Interface Bus) module. 31 */ 32 #undef TX39SIBDEBUG 33 #include "opt_tx39_debug.h" 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/device.h> 38 39 #include <machine/bus.h> 40 #include <machine/intr.h> 41 42 #include <hpcmips/tx/tx39var.h> 43 #include <hpcmips/tx/tx39icureg.h> 44 #include <hpcmips/tx/tx39sibvar.h> 45 #include <hpcmips/tx/tx39sibreg.h> 46 47 #include "locators.h" 48 49 #ifdef TX39SIBDEBUG 50 int tx39sibdebug = 0; 51 #define DPRINTF(arg) if (tx39sibdebug) printf arg; 52 #else 53 #define DPRINTF(arg) 54 #endif 55 56 int tx39sib_match __P((struct device*, struct cfdata*, void*)); 57 void tx39sib_attach __P((struct device*, struct device*, void*)); 58 int tx39sib_print __P((void*, const char*)); 59 int tx39sib_search __P((struct device*, struct cfdata*, void*)); 60 61 #define TX39_CLK2X 18432000 62 const int sibsclk_divide_table[8] = { 63 2, 3, 4, 5, 6, 8, 10, 12 64 }; 65 66 struct tx39sib_param { 67 /* SIB clock rate */ 68 int sp_clock; 69 /* 70 * SIBMCLK = 18.432MHz = (CLK2X /4) 71 * SIBSCLK = SIBMCLK / sp_clock 72 * sp_clock start end divide module 73 * 0 7 8 2 74 * 1 6 8 3 75 * 2 6 9 4 76 * 3 5 9 5 77 * 4 5 10 6 78 * 5 4 11 8 79 * 6 3 12 10 80 * 7 2 13 12 81 */ 82 /* sampling rate */ 83 int sp_snd_rate; /* SNDFSDIV + 1 */ 84 int sp_tel_rate; /* TELFSDIV + 1 */ 85 /* 86 * Fs = (SIBSCLK * 2) / ((FSDIV + 1) * 64) 87 * FSDIV + 1 sampling rate 88 * 15 19.2k (1.6% error vs. CD-XA) 89 * 13 22.154k (0.47% error vs. CD-Audio) 90 * 22 7.85k (1.8% error vs. 8k) 91 */ 92 /* data format 16/8bit */ 93 int sp_sf0sndmode; 94 int sp_sf0telmode; 95 }; 96 97 struct tx39sib_param tx39sib_param_default_3912 = { 98 0, /* SIBSCLK = 9.216MHz (div2) */ 99 #if 0 /* setting sample */ 100 40, /* audio: 7.2kHz */ 101 26, /* audio: CD-Audio(/4) 11.077kHz*/ 102 6, /* audio: 48kHz */ 103 #endif 104 13, /* audio: CD-Audio(/2 = 22.050) 22.154kHz*/ 105 40, /* telecom: 7.2kHz */ 106 TX39_SIBCTRL_SND16, /* Audio 16bit mono */ 107 TX39_SIBCTRL_TEL16 /* Telecom 16bit mono */ 108 }; 109 110 struct tx39sib_param tx39sib_param_default_3922 = { 111 7, /* SIBSCLK = 9.216MHz (div1) */ 112 13, /* audio: CD-Audio(/2 = 22.050) 22.154kHz*/ 113 40, /* telecom: 7.2kHz */ 114 TX39_SIBCTRL_SND16, /* Audio 16bit mono */ 115 TX39_SIBCTRL_TEL16 /* Telecom 16bit mono */ 116 }; 117 118 struct tx39sib_softc { 119 struct device sc_dev; 120 tx_chipset_tag_t sc_tc; 121 122 struct tx39sib_param sc_param; 123 int sc_attached; 124 }; 125 126 __inline int __txsibsf0_ready __P((tx_chipset_tag_t)); 127 #ifdef TX39SIBDEBUG 128 void tx39sib_dump __P((struct tx39sib_softc*)); 129 #endif 130 131 struct cfattach tx39sib_ca = { 132 sizeof(struct tx39sib_softc), tx39sib_match, tx39sib_attach 133 }; 134 135 int 136 tx39sib_match(parent, cf, aux) 137 struct device *parent; 138 struct cfdata *cf; 139 void *aux; 140 { 141 return 1; 142 } 143 144 void 145 tx39sib_attach(parent, self, aux) 146 struct device *parent; 147 struct device *self; 148 void *aux; 149 { 150 struct txsim_attach_args *ta = aux; 151 struct tx39sib_softc *sc = (void*)self; 152 tx_chipset_tag_t tc; 153 154 sc->sc_tc = tc = ta->ta_tc; 155 156 /* set default param */ 157 #ifdef TX391X 158 sc->sc_param = tx39sib_param_default_3912; 159 #endif /* TX391X */ 160 #ifdef TX392X 161 sc->sc_param = tx39sib_param_default_3922; 162 #endif /* TX392X */ 163 164 #define MHZ(a) ((a) / 1000000), (((a) % 1000000) / 1000) 165 printf(": %d.%03d MHz", MHZ(tx39sib_clock(self))); 166 167 printf("\n"); 168 #ifdef TX39SIBDEBUG 169 if (tx39sibdebug) 170 tx39sib_dump(sc); 171 #endif 172 /* enable subframe0 */ 173 tx39sib_enable1(self); 174 /* enable SIB */ 175 tx39sib_enable2(self); 176 177 #ifdef TX39SIBDEBUG 178 if (tx39sibdebug) 179 tx39sib_dump(sc); 180 #endif 181 182 config_search(tx39sib_search, self, tx39sib_print); 183 } 184 185 void 186 tx39sib_enable1(dev) 187 struct device *dev; 188 { 189 struct tx39sib_softc *sc = (void*)dev; 190 struct tx39sib_param *param = &sc->sc_param; 191 tx_chipset_tag_t tc = sc->sc_tc; 192 193 txreg_t reg; 194 195 /* disable SIB */ 196 tx39sib_disable(dev); 197 198 /* setup */ 199 reg = 0; 200 /* SIB clock rate */ 201 reg = TX39_SIBCTRL_SCLKDIV_SET(reg, param->sp_clock); 202 /* sampling rate (sound) */ 203 reg = TX39_SIBCTRL_SNDFSDIV_SET(reg, param->sp_snd_rate - 1); 204 /* sampling rate (telecom) */ 205 reg = TX39_SIBCTRL_TELFSDIV_SET(reg, param->sp_tel_rate - 1); 206 /* data format (8/16bit) */ 207 reg |= param->sp_sf0sndmode; 208 reg |= param->sp_sf0telmode; 209 tx_conf_write(tc, TX39_SIBCTRL_REG, reg); 210 211 /* DMA */ 212 reg = tx_conf_read(tc, TX39_SIBDMACTRL_REG); 213 reg &= ~(TX39_SIBDMACTRL_ENDMARXSND | 214 TX39_SIBDMACTRL_ENDMATXSND | 215 TX39_SIBDMACTRL_ENDMARXTEL | 216 TX39_SIBDMACTRL_ENDMATXTEL); 217 tx_conf_write(tc, TX39_SIBDMACTRL_REG, reg); 218 219 /* 220 * Enable subframe0 (BETTY) 221 */ 222 reg = tx_conf_read(tc, TX39_SIBCTRL_REG); 223 reg |= TX39_SIBCTRL_ENSF0; 224 tx_conf_write(tc, TX39_SIBCTRL_REG, reg); 225 } 226 227 void 228 tx39sib_enable2(dev) 229 struct device *dev; 230 { 231 struct tx39sib_softc *sc = (void*)dev; 232 tx_chipset_tag_t tc = sc->sc_tc; 233 txreg_t reg; 234 235 reg = tx_conf_read(tc, TX39_SIBCTRL_REG); 236 reg |= TX39_SIBCTRL_ENSIB; 237 tx_conf_write(tc, TX39_SIBCTRL_REG, reg); 238 } 239 240 void 241 tx39sib_disable(dev) 242 struct device *dev; 243 { 244 struct tx39sib_softc *sc = (void*)dev; 245 tx_chipset_tag_t tc = sc->sc_tc; 246 txreg_t reg; 247 /* disable codec side */ 248 /* notyet */ 249 250 /* disable TX39 side */ 251 reg = tx_conf_read(tc, TX39_SIBCTRL_REG); 252 reg &= ~(TX39_SIBCTRL_ENTEL | TX39_SIBCTRL_ENSND); 253 tx_conf_write(tc, TX39_SIBCTRL_REG, reg); 254 255 /* 256 * Disable subframe0/1 (BETTY/external codec) 257 */ 258 reg = tx_conf_read(tc, TX39_SIBCTRL_REG); 259 reg &= ~TX39_SIBCTRL_ENSF0; 260 reg &= ~(TX39_SIBCTRL_ENSF1 | TX39_SIBCTRL_SELTELSF1 | 261 TX39_SIBCTRL_SELSNDSF1); 262 tx_conf_write(tc, TX39_SIBCTRL_REG, reg); 263 264 /* disable TX39SIB module */ 265 reg &= ~TX39_SIBCTRL_ENSIB; 266 tx_conf_write(tc, TX39_SIBCTRL_REG, reg); 267 } 268 269 int 270 tx39sib_clock(dev) 271 struct device *dev; 272 { 273 struct tx39sib_softc *sc = (void*)dev; 274 275 return TX39_CLK2X / sibsclk_divide_table[sc->sc_param.sp_clock]; 276 } 277 278 int 279 tx39sib_search(parent, cf, aux) 280 struct device *parent; 281 struct cfdata *cf; 282 void *aux; 283 { 284 struct tx39sib_softc *sc = (void*)parent; 285 struct txsib_attach_args sa; 286 287 sa.sa_tc = sc->sc_tc; 288 sa.sa_slot = cf->cf_loc[TXSIBIFCF_SLOT]; 289 sa.sa_snd_rate = sc->sc_param.sp_snd_rate; 290 sa.sa_tel_rate = sc->sc_param.sp_tel_rate; 291 292 if (sa.sa_slot == TXSIBIFCF_SLOT_DEFAULT) { 293 printf("tx39sib_search: wildcarded slot, skipping\n"); 294 return 0; 295 } 296 297 if (!(sc->sc_attached & (1 << sa.sa_slot)) &&/* not attached slot */ 298 (*cf->cf_attach->ca_match)(parent, cf, &sa)) { 299 config_attach(parent, cf, &sa, tx39sib_print); 300 sc->sc_attached |= (1 << sa.sa_slot); 301 } 302 303 return 0; 304 } 305 306 int 307 tx39sib_print(aux, pnp) 308 void *aux; 309 const char *pnp; 310 { 311 struct txsib_attach_args *sa = aux; 312 313 printf(" slot %d", sa->sa_slot); 314 315 return QUIET; 316 } 317 318 /* 319 * sync access method. don't use runtime. 320 */ 321 322 __inline int 323 __txsibsf0_ready(tc) 324 tx_chipset_tag_t tc; 325 { 326 int i; 327 328 tx_conf_write(tc, TX39_INTRSTATUS1_REG, TX39_INTRSTATUS1_SIBSF0INT); 329 for (i = 0; (!(tx_conf_read(tc, TX39_INTRSTATUS1_REG) & 330 TX39_INTRSTATUS1_SIBSF0INT)) && i < 1000; i++) { 331 if (i > 100 && !(i % 100)) { 332 printf("sf0 busy loop: retry count %d\n", i); 333 } 334 } 335 336 if (i >= 1000) { 337 printf("sf0 busy\n"); 338 return 0; 339 } 340 341 return 1; 342 } 343 344 void 345 txsibsf0_reg_write(tc, addr, val) 346 tx_chipset_tag_t tc; 347 int addr; 348 u_int16_t val; 349 { 350 txreg_t reg; 351 352 reg = txsibsf0_read(tc, addr); 353 reg |= TX39_SIBSF0_WRITE; 354 TX39_SIBSF0_REGDATA_CLR(reg); 355 reg = TX39_SIBSF0_REGDATA_SET(reg, val); 356 357 __txsibsf0_ready(tc); 358 tx_conf_write(tc, TX39_SIBSF0CTRL_REG, reg); 359 } 360 361 u_int16_t 362 txsibsf0_reg_read(tc, addr) 363 tx_chipset_tag_t tc; 364 int addr; 365 { 366 return TX39_SIBSF0_REGDATA(txsibsf0_read(tc, addr)); 367 } 368 369 u_int32_t 370 txsibsf0_read(tc, addr) 371 tx_chipset_tag_t tc; 372 int addr; 373 { 374 txreg_t reg; 375 int retry = 3; 376 377 do { 378 reg = TX39_SIBSF0_REGADDR_SET(0, addr); 379 __txsibsf0_ready(tc); 380 tx_conf_write(tc, TX39_SIBSF0CTRL_REG, reg); 381 382 __txsibsf0_ready(tc); 383 reg = tx_conf_read(tc, TX39_SIBSF0STAT_REG); 384 385 } while ((TX39_SIBSF0_REGADDR(reg) != addr) && --retry > 0); 386 387 if (retry <= 0) 388 printf("txsibsf0_read: command failed\n"); 389 390 return reg; 391 } 392 393 #ifdef TX39SIBDEBUG 394 #define ISSETPRINT_CTRL(r, m) \ 395 __is_set_print(r, TX39_SIBCTRL_##m, #m) 396 #define ISSETPRINT_DMACTRL(r, m) \ 397 __is_set_print(r, TX39_SIBDMACTRL_##m, #m) 398 399 void 400 tx39sib_dump(sc) 401 struct tx39sib_softc *sc; 402 { 403 tx_chipset_tag_t tc = sc->sc_tc; 404 txreg_t reg; 405 406 reg = tx_conf_read(tc, TX39_SIBCTRL_REG); 407 ISSETPRINT_CTRL(reg, SIBIRQ); 408 ISSETPRINT_CTRL(reg, ENCNTTEST); 409 ISSETPRINT_CTRL(reg, ENDMATEST); 410 ISSETPRINT_CTRL(reg, SNDMONO); 411 ISSETPRINT_CTRL(reg, RMONOSNDIN); 412 ISSETPRINT_CTRL(reg, TEL16); 413 ISSETPRINT_CTRL(reg, SND16); 414 ISSETPRINT_CTRL(reg, SELTELSF1); 415 ISSETPRINT_CTRL(reg, SELSNDSF1); 416 ISSETPRINT_CTRL(reg, ENTEL); 417 ISSETPRINT_CTRL(reg, ENSND); 418 ISSETPRINT_CTRL(reg, SIBLOOP); 419 ISSETPRINT_CTRL(reg, ENSF1); 420 ISSETPRINT_CTRL(reg, ENSF0); 421 ISSETPRINT_CTRL(reg, ENSIB); 422 printf("\n"); 423 printf("SCLKDIV %d\n", TX39_SIBCTRL_SCLKDIV(reg)); 424 printf("TELFSDIV %d\n", TX39_SIBCTRL_TELFSDIV(reg)); 425 printf("SNDFSDIV %d\n", TX39_SIBCTRL_SNDFSDIV(reg)); 426 427 reg = tx_conf_read(tc, TX39_SIBDMACTRL_REG); 428 ISSETPRINT_DMACTRL(reg, SNDBUFF1TIME); 429 ISSETPRINT_DMACTRL(reg, SNDDMALOOP); 430 ISSETPRINT_DMACTRL(reg, ENDMARXSND); 431 ISSETPRINT_DMACTRL(reg, ENDMATXSND); 432 ISSETPRINT_DMACTRL(reg, TELBUFF1TIME); 433 ISSETPRINT_DMACTRL(reg, TELDMALOOP); 434 ISSETPRINT_DMACTRL(reg, ENDMARXTEL); 435 ISSETPRINT_DMACTRL(reg, ENDMATXTEL); 436 printf("\n"); 437 printf("SNDDMAPTR %d\n", TX39_SIBDMACTRL_TELDMAPTR(reg)); 438 printf("TELDMAPTR %d\n", TX39_SIBDMACTRL_SNDDMAPTR(reg)); 439 440 } 441 #endif /* TX39SIBDEBUG */ 442