1 /* $NetBSD: tx39sib.c,v 1.14 2003/07/15 02:29:33 lukem Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * TX39 SIB (Serial Interface Bus) module. 41 */ 42 43 #include <sys/cdefs.h> 44 __KERNEL_RCSID(0, "$NetBSD: tx39sib.c,v 1.14 2003/07/15 02:29:33 lukem Exp $"); 45 46 #undef TX39SIBDEBUG 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/device.h> 51 52 #include <machine/bus.h> 53 #include <machine/intr.h> 54 55 #include <hpcmips/tx/tx39var.h> 56 #include <hpcmips/tx/tx39icureg.h> 57 #include <hpcmips/tx/tx39sibvar.h> 58 #include <hpcmips/tx/tx39sibreg.h> 59 60 #include "locators.h" 61 62 #ifdef TX39SIBDEBUG 63 int tx39sibdebug = 0; 64 #define DPRINTF(arg) if (tx39sibdebug) printf arg; 65 #else 66 #define DPRINTF(arg) 67 #endif 68 69 int tx39sib_match(struct device *, struct cfdata *, void *); 70 void tx39sib_attach(struct device *, struct device *, void *); 71 int tx39sib_print(void *, const char *); 72 int tx39sib_search(struct device *, struct cfdata *, void *); 73 74 #define TX39_CLK2X 18432000 75 const int sibsclk_divide_table[8] = { 76 2, 3, 4, 5, 6, 8, 10, 12 77 }; 78 79 struct tx39sib_param { 80 /* SIB clock rate */ 81 int sp_clock; 82 /* 83 * SIBMCLK = 18.432MHz = (CLK2X /4) 84 * SIBSCLK = SIBMCLK / sp_clock 85 * sp_clock start end divide module 86 * 0 7 8 2 87 * 1 6 8 3 88 * 2 6 9 4 89 * 3 5 9 5 90 * 4 5 10 6 91 * 5 4 11 8 92 * 6 3 12 10 93 * 7 2 13 12 94 */ 95 /* sampling rate */ 96 int sp_snd_rate; /* SNDFSDIV + 1 */ 97 int sp_tel_rate; /* TELFSDIV + 1 */ 98 /* 99 * Fs = (SIBSCLK * 2) / ((FSDIV + 1) * 64) 100 * FSDIV + 1 sampling rate 101 * 15 19.2k (1.6% error vs. CD-XA) 102 * 13 22.154k (0.47% error vs. CD-Audio) 103 * 22 7.85k (1.8% error vs. 8k) 104 */ 105 /* data format 16/8bit */ 106 int sp_sf0sndmode; 107 int sp_sf0telmode; 108 }; 109 110 struct tx39sib_param tx39sib_param_default_3912 = { 111 0, /* SIBSCLK = 9.216MHz (div2) */ 112 #if 0 /* setting sample */ 113 40, /* audio: 7.2kHz */ 114 26, /* audio: CD-Audio(/4) 11.077kHz*/ 115 6, /* audio: 48kHz */ 116 #endif 117 13, /* audio: CD-Audio(/2 = 22.050) 22.154kHz*/ 118 40, /* telecom: 7.2kHz */ 119 TX39_SIBCTRL_SND16, /* Audio 16bit mono */ 120 TX39_SIBCTRL_TEL16 /* Telecom 16bit mono */ 121 }; 122 123 struct tx39sib_param tx39sib_param_default_3922 = { 124 7, /* SIBSCLK = 9.216MHz (div1) */ 125 13, /* audio: CD-Audio(/2 = 22.050) 22.154kHz*/ 126 40, /* telecom: 7.2kHz */ 127 TX39_SIBCTRL_SND16, /* Audio 16bit mono */ 128 TX39_SIBCTRL_TEL16 /* Telecom 16bit mono */ 129 }; 130 131 struct tx39sib_softc { 132 struct device sc_dev; 133 tx_chipset_tag_t sc_tc; 134 135 struct tx39sib_param sc_param; 136 int sc_attached; 137 }; 138 139 __inline int __txsibsf0_ready(tx_chipset_tag_t); 140 #ifdef TX39SIBDEBUG 141 void tx39sib_dump(struct tx39sib_softc *); 142 #endif 143 144 CFATTACH_DECL(tx39sib, sizeof(struct tx39sib_softc), 145 tx39sib_match, tx39sib_attach, NULL, NULL); 146 147 int 148 tx39sib_match(struct device *parent, struct cfdata *cf, void *aux) 149 { 150 return (ATTACH_FIRST); 151 } 152 153 void 154 tx39sib_attach(struct device *parent, struct device *self, void *aux) 155 { 156 struct txsim_attach_args *ta = aux; 157 struct tx39sib_softc *sc = (void*)self; 158 tx_chipset_tag_t tc; 159 160 sc->sc_tc = tc = ta->ta_tc; 161 162 /* set default param */ 163 #ifdef TX391X 164 sc->sc_param = tx39sib_param_default_3912; 165 #endif /* TX391X */ 166 #ifdef TX392X 167 sc->sc_param = tx39sib_param_default_3922; 168 #endif /* TX392X */ 169 170 #define MHZ(a) ((a) / 1000000), (((a) % 1000000) / 1000) 171 printf(": %d.%03d MHz", MHZ(tx39sib_clock(self))); 172 173 printf("\n"); 174 #ifdef TX39SIBDEBUG 175 if (tx39sibdebug) 176 tx39sib_dump(sc); 177 #endif 178 /* enable subframe0 */ 179 tx39sib_enable1(self); 180 /* enable SIB */ 181 tx39sib_enable2(self); 182 183 #ifdef TX39SIBDEBUG 184 if (tx39sibdebug) 185 tx39sib_dump(sc); 186 #endif 187 188 config_search(tx39sib_search, self, tx39sib_print); 189 } 190 191 void 192 tx39sib_enable1(struct device *dev) 193 { 194 struct tx39sib_softc *sc = (void*)dev; 195 struct tx39sib_param *param = &sc->sc_param; 196 tx_chipset_tag_t tc = sc->sc_tc; 197 198 txreg_t reg; 199 200 /* disable SIB */ 201 tx39sib_disable(dev); 202 203 /* setup */ 204 reg = 0; 205 /* SIB clock rate */ 206 reg = TX39_SIBCTRL_SCLKDIV_SET(reg, param->sp_clock); 207 /* sampling rate (sound) */ 208 reg = TX39_SIBCTRL_SNDFSDIV_SET(reg, param->sp_snd_rate - 1); 209 /* sampling rate (telecom) */ 210 reg = TX39_SIBCTRL_TELFSDIV_SET(reg, param->sp_tel_rate - 1); 211 /* data format (8/16bit) */ 212 reg |= param->sp_sf0sndmode; 213 reg |= param->sp_sf0telmode; 214 tx_conf_write(tc, TX39_SIBCTRL_REG, reg); 215 216 /* DMA */ 217 reg = tx_conf_read(tc, TX39_SIBDMACTRL_REG); 218 reg &= ~(TX39_SIBDMACTRL_ENDMARXSND | 219 TX39_SIBDMACTRL_ENDMATXSND | 220 TX39_SIBDMACTRL_ENDMARXTEL | 221 TX39_SIBDMACTRL_ENDMATXTEL); 222 tx_conf_write(tc, TX39_SIBDMACTRL_REG, reg); 223 224 /* 225 * Enable subframe0 (BETTY) 226 */ 227 reg = tx_conf_read(tc, TX39_SIBCTRL_REG); 228 reg |= TX39_SIBCTRL_ENSF0; 229 tx_conf_write(tc, TX39_SIBCTRL_REG, reg); 230 } 231 232 void 233 tx39sib_enable2(struct device *dev) 234 { 235 struct tx39sib_softc *sc = (void*)dev; 236 tx_chipset_tag_t tc = sc->sc_tc; 237 txreg_t reg; 238 239 reg = tx_conf_read(tc, TX39_SIBCTRL_REG); 240 reg |= TX39_SIBCTRL_ENSIB; 241 tx_conf_write(tc, TX39_SIBCTRL_REG, reg); 242 } 243 244 void 245 tx39sib_disable(struct device *dev) 246 { 247 struct tx39sib_softc *sc = (void*)dev; 248 tx_chipset_tag_t tc = sc->sc_tc; 249 txreg_t reg; 250 /* disable codec side */ 251 /* notyet */ 252 253 /* disable TX39 side */ 254 reg = tx_conf_read(tc, TX39_SIBCTRL_REG); 255 reg &= ~(TX39_SIBCTRL_ENTEL | TX39_SIBCTRL_ENSND); 256 tx_conf_write(tc, TX39_SIBCTRL_REG, reg); 257 258 /* 259 * Disable subframe0/1 (BETTY/external codec) 260 */ 261 reg = tx_conf_read(tc, TX39_SIBCTRL_REG); 262 reg &= ~TX39_SIBCTRL_ENSF0; 263 reg &= ~(TX39_SIBCTRL_ENSF1 | TX39_SIBCTRL_SELTELSF1 | 264 TX39_SIBCTRL_SELSNDSF1); 265 tx_conf_write(tc, TX39_SIBCTRL_REG, reg); 266 267 /* disable TX39SIB module */ 268 reg &= ~TX39_SIBCTRL_ENSIB; 269 tx_conf_write(tc, TX39_SIBCTRL_REG, reg); 270 } 271 272 int 273 tx39sib_clock(struct device *dev) 274 { 275 struct tx39sib_softc *sc = (void*)dev; 276 277 return (TX39_CLK2X / sibsclk_divide_table[sc->sc_param.sp_clock]); 278 } 279 280 int 281 tx39sib_search(struct device *parent, struct cfdata *cf, void *aux) 282 { 283 struct tx39sib_softc *sc = (void*)parent; 284 struct txsib_attach_args sa; 285 286 sa.sa_tc = sc->sc_tc; 287 sa.sa_slot = cf->cf_loc[TXSIBIFCF_SLOT]; 288 sa.sa_snd_rate = sc->sc_param.sp_snd_rate; 289 sa.sa_tel_rate = sc->sc_param.sp_tel_rate; 290 291 if (sa.sa_slot == TXSIBIFCF_SLOT_DEFAULT) { 292 printf("tx39sib_search: wildcarded slot, skipping\n"); 293 return (0); 294 } 295 296 if (!(sc->sc_attached & (1 << sa.sa_slot)) &&/* not attached slot */ 297 config_match(parent, cf, &sa)) { 298 config_attach(parent, cf, &sa, tx39sib_print); 299 sc->sc_attached |= (1 << sa.sa_slot); 300 } 301 302 return (0); 303 } 304 305 int 306 tx39sib_print(void *aux, const char *pnp) 307 { 308 struct txsib_attach_args *sa = aux; 309 310 aprint_normal(" slot %d", sa->sa_slot); 311 312 return (QUIET); 313 } 314 315 /* 316 * sync access method. don't use runtime. 317 */ 318 319 __inline__ int 320 __txsibsf0_ready(tx_chipset_tag_t tc) 321 { 322 int i; 323 324 tx_conf_write(tc, TX39_INTRSTATUS1_REG, TX39_INTRSTATUS1_SIBSF0INT); 325 for (i = 0; (!(tx_conf_read(tc, TX39_INTRSTATUS1_REG) & 326 TX39_INTRSTATUS1_SIBSF0INT)) && i < 1000; i++) { 327 if (i > 100 && !(i % 100)) { 328 printf("sf0 busy loop: retry count %d\n", i); 329 } 330 } 331 332 if (i >= 1000) { 333 printf("sf0 busy\n"); 334 return (0); 335 } 336 337 return (1); 338 } 339 340 void 341 txsibsf0_reg_write(tx_chipset_tag_t tc, int addr, u_int16_t val) 342 { 343 txreg_t reg; 344 345 reg = txsibsf0_read(tc, addr); 346 reg |= TX39_SIBSF0_WRITE; 347 TX39_SIBSF0_REGDATA_CLR(reg); 348 reg = TX39_SIBSF0_REGDATA_SET(reg, val); 349 350 __txsibsf0_ready(tc); 351 tx_conf_write(tc, TX39_SIBSF0CTRL_REG, reg); 352 } 353 354 u_int16_t 355 txsibsf0_reg_read(tx_chipset_tag_t tc, int addr) 356 { 357 return (TX39_SIBSF0_REGDATA(txsibsf0_read(tc, addr))); 358 } 359 360 u_int32_t 361 txsibsf0_read(tx_chipset_tag_t tc, int addr) 362 { 363 txreg_t reg; 364 int retry = 3; 365 366 do { 367 reg = TX39_SIBSF0_REGADDR_SET(0, addr); 368 __txsibsf0_ready(tc); 369 tx_conf_write(tc, TX39_SIBSF0CTRL_REG, reg); 370 371 __txsibsf0_ready(tc); 372 reg = tx_conf_read(tc, TX39_SIBSF0STAT_REG); 373 374 } while ((TX39_SIBSF0_REGADDR(reg) != addr) && --retry > 0); 375 376 if (retry <= 0) 377 printf("txsibsf0_read: command failed\n"); 378 379 return (reg); 380 } 381 382 #ifdef TX39SIBDEBUG 383 #define ISSETPRINT_CTRL(r, m) \ 384 dbg_bitmask_print(r, TX39_SIBCTRL_##m, #m) 385 #define ISSETPRINT_DMACTRL(r, m) \ 386 dbg_bitmask_print(r, TX39_SIBDMACTRL_##m, #m) 387 388 void 389 tx39sib_dump(struct tx39sib_softc *sc) 390 { 391 tx_chipset_tag_t tc = sc->sc_tc; 392 txreg_t reg; 393 394 reg = tx_conf_read(tc, TX39_SIBCTRL_REG); 395 ISSETPRINT_CTRL(reg, SIBIRQ); 396 ISSETPRINT_CTRL(reg, ENCNTTEST); 397 ISSETPRINT_CTRL(reg, ENDMATEST); 398 ISSETPRINT_CTRL(reg, SNDMONO); 399 ISSETPRINT_CTRL(reg, RMONOSNDIN); 400 ISSETPRINT_CTRL(reg, TEL16); 401 ISSETPRINT_CTRL(reg, SND16); 402 ISSETPRINT_CTRL(reg, SELTELSF1); 403 ISSETPRINT_CTRL(reg, SELSNDSF1); 404 ISSETPRINT_CTRL(reg, ENTEL); 405 ISSETPRINT_CTRL(reg, ENSND); 406 ISSETPRINT_CTRL(reg, SIBLOOP); 407 ISSETPRINT_CTRL(reg, ENSF1); 408 ISSETPRINT_CTRL(reg, ENSF0); 409 ISSETPRINT_CTRL(reg, ENSIB); 410 printf("\n"); 411 printf("SCLKDIV %d\n", TX39_SIBCTRL_SCLKDIV(reg)); 412 printf("TELFSDIV %d\n", TX39_SIBCTRL_TELFSDIV(reg)); 413 printf("SNDFSDIV %d\n", TX39_SIBCTRL_SNDFSDIV(reg)); 414 415 reg = tx_conf_read(tc, TX39_SIBDMACTRL_REG); 416 ISSETPRINT_DMACTRL(reg, SNDBUFF1TIME); 417 ISSETPRINT_DMACTRL(reg, SNDDMALOOP); 418 ISSETPRINT_DMACTRL(reg, ENDMARXSND); 419 ISSETPRINT_DMACTRL(reg, ENDMATXSND); 420 ISSETPRINT_DMACTRL(reg, TELBUFF1TIME); 421 ISSETPRINT_DMACTRL(reg, TELDMALOOP); 422 ISSETPRINT_DMACTRL(reg, ENDMARXTEL); 423 ISSETPRINT_DMACTRL(reg, ENDMATXTEL); 424 printf("\n"); 425 printf("SNDDMAPTR %d\n", TX39_SIBDMACTRL_TELDMAPTR(reg)); 426 printf("TELDMAPTR %d\n", TX39_SIBDMACTRL_SNDDMAPTR(reg)); 427 428 } 429 #endif /* TX39SIBDEBUG */ 430