hd64461.c revision 1.2
1 /* $NetBSD: hd64461.c,v 1.2 2001/07/13 16:21:39 uch Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 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 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/device.h> 42 #include <sys/malloc.h> 43 #include <sys/boot_flag.h> 44 45 #include <machine/bus.h> 46 #include <machine/intr.h> 47 #include <sh3/shbvar.h> 48 49 #ifdef DEBUG 50 #include <hpcsh/hpcsh/debug.h> 51 #endif 52 53 #include <hpcsh/dev/hd64461/hd64461var.h> 54 #include <hpcsh/dev/hd64461/hd64461reg.h> 55 #include <hpcsh/dev/hd64461/hd64461intcreg.h> 56 #include <hpcsh/dev/hd64461/hd64461intcvar.h> 57 58 /* HD64461 modules. INTC, TIMER, POWER modules are included in hd64461if */ 59 static struct hd64461_module { 60 const char *name; 61 } hd64461_modules[] = { 62 [HD64461_MODULE_VIDEO] = { "hd64461video" }, 63 [HD64461_MODULE_PCMCIA] = { "hd64461pcmcia" }, 64 [HD64461_MODULE_GPIO] = { "hd64461gpio" }, 65 [HD64461_MODULE_AFE] = { "hd64461afe" }, 66 [HD64461_MODULE_UART] = { "hd64461uart" }, 67 [HD64461_MODULE_FIR] = { "hd64461fir" }, 68 }; 69 #define HD64461_NMODULE \ 70 (sizeof hd64461_modules / sizeof(struct hd64461_module)) 71 72 struct hd64461_intr_entry { 73 int (*func)(void *); 74 void *arg; 75 int priority; 76 const u_int16_t mask; 77 } hd64461_intr_entry[] = { 78 #define IRQ_ENTRY(x) [HD64461_IRQ_##x] = { 0, 0, 0, HD64461_INTC_##x } 79 IRQ_ENTRY(PCC0), 80 IRQ_ENTRY(PCC1), 81 IRQ_ENTRY(AFE), 82 IRQ_ENTRY(GPIO), 83 IRQ_ENTRY(TMU0), 84 IRQ_ENTRY(TMU1), 85 IRQ_ENTRY(IRDA), 86 IRQ_ENTRY(UART) 87 #undef IRQ_ENTRY 88 }; 89 90 struct hd64461_softc { 91 struct device sc_dev; 92 }; 93 94 static int hd64461_match(struct device *, struct cfdata *, void *); 95 static void hd64461_attach(struct device *, struct device *, void *); 96 static int hd64461_print(void *, const char *); 97 98 struct cfattach hd64461if_ca = { 99 sizeof(struct hd64461_softc), hd64461_match, hd64461_attach 100 }; 101 102 static void hd64461_module_attach(struct hd64461_softc *); 103 static int hd64461_intr(void *); 104 #ifdef DEBUG 105 static void hd64461_info(struct hd64461_softc *); 106 #endif 107 108 static int 109 hd64461_match(struct device *parent, struct cfdata *cf, void *aux) 110 { 111 static int match; 112 struct shb_attach_args *ia = aux; 113 114 if (match++) 115 return (0); /* only one instance */ 116 117 if (strcmp("hd64461if", cf->cf_driver->cd_name)) 118 return (0); 119 120 ia->ia_iobase = 0; 121 ia->ia_iosize = 0; 122 ia->ia_maddr = 0; 123 ia->ia_msize = 0; 124 125 return (1); 126 } 127 128 static void 129 hd64461_attach(struct device *parent, struct device *self, void *aux) 130 { 131 struct shb_attach_args *ia = aux; 132 struct hd64461_softc *sc = (struct hd64461_softc *)self; 133 134 printf("\n"); 135 #ifdef DEBUG 136 if (bootverbose) 137 hd64461_info(sc); 138 #endif 139 /* mask all interrupt */ 140 hd64461_reg_write_2(HD64461_INTCNIMR_REG16, 0xffff); 141 142 shb_intr_establish(ia->ia_irq, IST_EDGE, IPL_TTY, hd64461_intr, sc); 143 144 hd64461_module_attach(sc); 145 } 146 147 static void 148 hd64461_module_attach(struct hd64461_softc *sc) 149 { 150 struct hd64461_attach_args ha; 151 struct hd64461_module *module; 152 int i; 153 154 /* attach all sub modules */ 155 for (i = 0, module = hd64461_modules; i < HD64461_NMODULE; 156 i++, module++) { 157 if (module->name == 0) 158 continue; 159 ha.ha_module_id = i; 160 config_found(&sc->sc_dev, &ha, hd64461_print); 161 } 162 } 163 164 static int 165 hd64461_print(void *aux, const char *pnp) 166 { 167 struct hd64461_attach_args *ha = aux; 168 169 if (pnp) 170 printf("%s at %s", 171 hd64461_modules[ha->ha_module_id].name, pnp); 172 173 return (UNCONF); 174 } 175 176 void * 177 hd64461_intr_establish(enum hd64461_irq irq, int mode, int level, 178 int (*func)(void *), void *arg) 179 { 180 struct hd64461_intr_entry *entry = &hd64461_intr_entry[irq]; 181 u_int16_t r; 182 int s; 183 184 s = splhigh(); 185 186 entry->func = func; 187 entry->arg = arg; 188 entry->priority = level; 189 190 /* enable interrupt */ 191 r = hd64461_reg_read_2(HD64461_INTCNIMR_REG16); 192 r &= ~entry->mask; 193 hd64461_reg_write_2(HD64461_INTCNIMR_REG16, r); 194 195 splx(s); 196 197 return (void *)irq; 198 } 199 200 void 201 hd64461_intr_disestablish(void *handle) 202 { 203 int irq = (int)handle; 204 struct hd64461_intr_entry *entry = &hd64461_intr_entry[irq]; 205 u_int16_t r; 206 int s; 207 208 s = splhigh(); 209 210 /* disable interrupt */ 211 r = hd64461_reg_read_2(HD64461_INTCNIMR_REG16); 212 r |= entry->mask; 213 hd64461_reg_write_2(HD64461_INTCNIMR_REG16, r); 214 215 entry->func = 0; 216 217 splx(s); 218 } 219 220 int 221 hd64461_intr(void *arg) 222 { 223 struct hd64461_intr_entry *entry = hd64461_intr_entry; 224 u_int16_t r, m, cause; 225 int i; 226 227 r = hd64461_reg_read_2(HD64461_INTCNIRR_REG16); 228 m = hd64461_reg_read_2(HD64461_INTCNIMR_REG16); 229 cause = r & ~m; 230 231 /* XXX priority */ 232 hd64461_reg_write_2(HD64461_INTCNIMR_REG16, 0xffff); 233 234 /* XXX priority */ 235 for (i = 0; i < HD64461_IRQ_MAX; i++, entry++) { 236 if (entry->func == 0) 237 continue; 238 if (cause & entry->mask) { 239 (*entry->func)(entry->arg); 240 } 241 } 242 243 hd64461_reg_write_2(HD64461_INTCNIMR_REG16, m); 244 245 return 0; 246 } 247 248 #ifdef DEBUG 249 static void 250 hd64461_info(struct hd64461_softc *sc) 251 { 252 const char name[] = __FUNCTION__; 253 u_int16_t r16; 254 255 dbg_banner_start(name, sizeof name); 256 257 /* 258 * System 259 */ 260 printf("STBCR (System Control Register)\n"); 261 r16 = hd64461_reg_read_2(HD64461_SYSSTBCR_REG16); 262 #define DBG_BIT_PRINT(r, m) dbg_bit_print(r, HD64461_SYSSTBCR_##m, #m) 263 DBG_BIT_PRINT(r16, CKIO_STBY); 264 DBG_BIT_PRINT(r16, SAFECKE_IST); 265 DBG_BIT_PRINT(r16, SLCKE_IST); 266 DBG_BIT_PRINT(r16, SAFECKE_OST); 267 DBG_BIT_PRINT(r16, SLCKE_OST); 268 DBG_BIT_PRINT(r16, SMIAST); 269 DBG_BIT_PRINT(r16, SLCDST); 270 DBG_BIT_PRINT(r16, SPC0ST); 271 DBG_BIT_PRINT(r16, SPC1ST); 272 DBG_BIT_PRINT(r16, SAFEST); 273 DBG_BIT_PRINT(r16, STM0ST); 274 DBG_BIT_PRINT(r16, STM1ST); 275 DBG_BIT_PRINT(r16, SIRST); 276 DBG_BIT_PRINT(r16, SURTSD); 277 #undef DBG_BIT_PRINT 278 printf("\n"); 279 280 printf("SYSCR (System Configuration Register)\n"); 281 r16 = hd64461_reg_read_2(HD64461_SYSSYSCR_REG16); 282 #define DBG_BIT_PRINT(r, m) dbg_bit_print(r, HD64461_SYSSYSCR_##m, #m) 283 DBG_BIT_PRINT(r16, SCPU_BUS_IGAT); 284 DBG_BIT_PRINT(r16, SPTA_IR); 285 DBG_BIT_PRINT(r16, SPTA_TM); 286 DBG_BIT_PRINT(r16, SPTB_UR); 287 DBG_BIT_PRINT(r16, WAIT_CTL_SEL); 288 DBG_BIT_PRINT(r16, SMODE1); 289 DBG_BIT_PRINT(r16, SMODE0); 290 #undef DBG_BIT_PRINT 291 printf("\n"); 292 293 printf("SCPUCR (CPU Data Bus Control Register)\n"); 294 r16 = hd64461_reg_read_2(HD64461_SYSSCPUCR_REG16); 295 #define DBG_BIT_PRINT(r, m) dbg_bit_print(r, HD64461_SYSSCPUCR_##m, #m) 296 DBG_BIT_PRINT(r16, SPDSTOF); 297 DBG_BIT_PRINT(r16, SPDSTIG); 298 DBG_BIT_PRINT(r16, SPCSTOF); 299 DBG_BIT_PRINT(r16, SPCSTIG); 300 DBG_BIT_PRINT(r16, SPBSTOF); 301 DBG_BIT_PRINT(r16, SPBSTIG); 302 DBG_BIT_PRINT(r16, SPASTOF); 303 DBG_BIT_PRINT(r16, SPASTIG); 304 DBG_BIT_PRINT(r16, SLCDSTIG); 305 DBG_BIT_PRINT(r16, SCPU_CS56_EP); 306 DBG_BIT_PRINT(r16, SCPU_CMD_EP); 307 DBG_BIT_PRINT(r16, SCPU_ADDR_EP); 308 DBG_BIT_PRINT(r16, SCPDPU); 309 DBG_BIT_PRINT(r16, SCPU_A2319_EP); 310 #undef DBG_BIT_PRINT 311 printf("\n"); 312 313 printf("\n"); 314 /* 315 * INTC 316 */ 317 printf("NIRR (Interrupt Request Register)\n"); 318 r16 = hd64461_reg_read_2(HD64461_INTCNIRR_REG16); 319 #define DBG_BIT_PRINT(r, m) dbg_bit_print(r, HD64461_INTCNIRR_##m, #m) 320 DBG_BIT_PRINT(r16, PCC0R); 321 DBG_BIT_PRINT(r16, PCC1R); 322 DBG_BIT_PRINT(r16, AFER); 323 DBG_BIT_PRINT(r16, GPIOR); 324 DBG_BIT_PRINT(r16, TMU0R); 325 DBG_BIT_PRINT(r16, TMU1R); 326 DBG_BIT_PRINT(r16, IRDAR); 327 DBG_BIT_PRINT(r16, UARTR); 328 #undef DBG_BIT_PRINT 329 printf("\n"); 330 331 printf("NIMR (Interrupt Mask Register)\n"); 332 r16 = hd64461_reg_read_2(HD64461_INTCNIMR_REG16); 333 #define DBG_BIT_PRINT(r, m) dbg_bit_print(r, HD64461_INTCNIMR_##m, #m) 334 DBG_BIT_PRINT(r16, PCC0M); 335 DBG_BIT_PRINT(r16, PCC1M); 336 DBG_BIT_PRINT(r16, AFEM); 337 DBG_BIT_PRINT(r16, GPIOM); 338 DBG_BIT_PRINT(r16, TMU0M); 339 DBG_BIT_PRINT(r16, TMU1M); 340 DBG_BIT_PRINT(r16, IRDAM); 341 DBG_BIT_PRINT(r16, UARTM); 342 #undef DBG_BIT_PRINT 343 printf("\n"); 344 345 dbg_banner_end(); 346 } 347 #endif /* DEBUG */ 348
Indexes created Thu Sep 25 16:09:42 GMT 2025