vrpmu.c revision 1.8
1 /* $NetBSD: vrpmu.c,v 1.8 2000/07/02 10:01:31 takemura Exp $ */ 2 3 /* 4 * Copyright (c) 1999 M. Warner Losh. All rights reserved. 5 * Copyright (c) 1999 PocketBSD Project. 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. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/param.h> 30 #include <sys/systm.h> 31 #include <sys/device.h> 32 33 #include <machine/bus.h> 34 #include <machine/config_hook.h> 35 36 #include <hpcmips/vr/vripvar.h> 37 #include <hpcmips/vr/vrpmuvar.h> 38 #include <hpcmips/vr/vrpmureg.h> 39 40 #include "vrbcu.h" 41 #if NVRBCU > 0 42 #include <hpcmips/vr/bcuvar.h> 43 #include <hpcmips/vr/bcureg.h> 44 #endif 45 46 #ifdef VRPMUDEBUG 47 #define DEBUG_BOOT 0x1 /* boot time */ 48 #define DEBUG_INTR 0x2 /* intr */ 49 #define DEBUG_IO 0x4 /* I/O */ 50 #ifndef VRPMUDEBUG_CONF 51 #define VRPMUDEBUG_CONF 0 52 #endif /* VRPMUDEBUG_CONF */ 53 int vrpmudebug = VRPMUDEBUG_CONF; 54 #define DPRINTF(flag, arg) if (vrpmudebug&flag) printf arg; 55 #define DDUMP_INTR2(flag, arg1, arg2) if (vrpmudebug&flag) vrpmu_dump_intr2(arg1,arg2); 56 #define DDUMP_REGS(flag, arg) if (vrpmudebug&flag) vrpmu_dump_regs(arg); 57 #else /* VRPMUDEBUG */ 58 #define DPRINTF(flag, arg) 59 #define DDUMP_INTR2(flag, arg1, arg2) 60 #define DDUMP_REGS(flag, arg) 61 #endif /* VRPMUDEBUG */ 62 63 static int vrpmumatch __P((struct device *, struct cfdata *, void *)); 64 static void vrpmuattach __P((struct device *, struct device *, void *)); 65 66 static void vrpmu_write __P((struct vrpmu_softc *, int, unsigned short)); 67 static unsigned short vrpmu_read __P((struct vrpmu_softc *, int)); 68 69 int vrpmu_intr __P((void *)); 70 void vrpmu_dump_intr __P((void *)); 71 void vrpmu_dump_intr2 __P((unsigned int, unsigned int)); 72 void vrpmu_dump_regs __P((void *)); 73 74 struct cfattach vrpmu_ca = { 75 sizeof(struct vrpmu_softc), vrpmumatch, vrpmuattach 76 }; 77 78 static inline void 79 vrpmu_write(sc, port, val) 80 struct vrpmu_softc *sc; 81 int port; 82 unsigned short val; 83 { 84 bus_space_write_2(sc->sc_iot, sc->sc_ioh, port, val); 85 } 86 87 static inline unsigned short 88 vrpmu_read(sc, port) 89 struct vrpmu_softc *sc; 90 int port; 91 { 92 return bus_space_read_2(sc->sc_iot, sc->sc_ioh, port); 93 } 94 95 static int 96 vrpmumatch(parent, cf, aux) 97 struct device *parent; 98 struct cfdata *cf; 99 void *aux; 100 { 101 return 1; 102 } 103 104 static void 105 vrpmuattach(parent, self, aux) 106 struct device *parent; 107 struct device *self; 108 void *aux; 109 { 110 struct vrpmu_softc *sc = (struct vrpmu_softc *)self; 111 struct vrip_attach_args *va = aux; 112 113 bus_space_tag_t iot = va->va_iot; 114 bus_space_handle_t ioh; 115 116 if (bus_space_map(iot, va->va_addr, 1, 0, &ioh)) { 117 printf(": can't map bus space\n"); 118 return; 119 } 120 121 sc->sc_iot = iot; 122 sc->sc_ioh = ioh; 123 124 if (!(sc->sc_handler = 125 vrip_intr_establish(va->va_vc, va->va_intr, IPL_TTY, 126 vrpmu_intr, sc))) { 127 printf (": can't map interrupt line.\n"); 128 return; 129 } 130 131 printf("\n"); 132 /* dump current intrrupt states */ 133 vrpmu_dump_intr(sc); 134 DDUMP_REGS(DEBUG_BOOT, sc); 135 /* clear interrupt status */ 136 vrpmu_write(sc, PMUINT_REG_W, PMUINT_ALL); 137 vrpmu_write(sc, PMUINT2_REG_W, PMUINT2_ALL); 138 } 139 140 /* 141 * dump PMU intr status regs 142 * 143 */ 144 void 145 vrpmu_dump_intr(arg) 146 void *arg; 147 { 148 struct vrpmu_softc *sc = arg; 149 unsigned int intstat1; 150 unsigned int intstat2; 151 intstat1 = vrpmu_read(sc, PMUINT_REG_W); 152 intstat2 = vrpmu_read(sc, PMUINT2_REG_W); 153 vrpmu_dump_intr2(intstat1, intstat2); 154 155 } 156 157 /* 158 * dump PMU intr status regs 159 */ 160 void 161 vrpmu_dump_intr2(intstat1, intstat2) 162 unsigned int intstat1, intstat2; 163 { 164 if (intstat1 & PMUINT_GPIO3) 165 printf("vrpmu: GPIO[3] activation\n"); 166 if (intstat1 & PMUINT_GPIO2) 167 printf("vrpmu: GPIO[2] activation\n"); 168 if (intstat1 & PMUINT_GPIO1) 169 printf("vrpmu: GPIO[1] activation\n"); 170 if (intstat1 & PMUINT_GPIO0) 171 printf("vrpmu: GPIO[0] activation\n"); 172 173 if (intstat1 & PMUINT_RTC) 174 printf("vrpmu: RTC alarm detected\n"); 175 if (intstat1 & PMUINT_BATT) 176 printf("vrpmu: Battery low during activation\n"); 177 178 if (intstat1 & PMUINT_TIMOUTRST) 179 printf("vrpmu: HAL timer reset\n"); 180 if (intstat1 & PMUINT_RTCRST) 181 printf("vrpmu: RTC reset detected\n"); 182 if (intstat1 & PMUINT_RSTSWRST) 183 printf("vrpmu: RESET switch detected\n"); 184 if (intstat1 & PMUINT_DMSWRST) 185 printf("vrpmu: Deadman's switch detected\n"); 186 if (intstat1 & PMUINT_BATTINTR) 187 printf("vrpmu: Battery low during normal ops\n"); 188 if (intstat1 & PMUINT_POWERSW) 189 printf("vrpmu: POWER switch detected\n"); 190 191 if (intstat2 & PMUINT_GPIO12) 192 printf("vrpmu: GPIO[12] activation\n"); 193 if (intstat2 & PMUINT_GPIO11) 194 printf("vrpmu: GPIO[11] activation\n"); 195 if (intstat2 & PMUINT_GPIO10) 196 printf("vrpmu: GPIO[10] activation\n"); 197 if (intstat2 & PMUINT_GPIO9) 198 printf("vrpmu: GPIO[9] activation\n"); 199 } 200 201 /* 202 * dump PMU registers 203 * 204 */ 205 void 206 vrpmu_dump_regs(arg) 207 void *arg; 208 { 209 struct vrpmu_softc *sc = arg; 210 unsigned int intstat1; 211 unsigned int intstat2; 212 unsigned int reg; 213 #if NVRBCU > 0 214 int cpuid; 215 #endif 216 intstat1 = vrpmu_read(sc, PMUINT_REG_W); 217 intstat2 = vrpmu_read(sc, PMUINT2_REG_W); 218 219 /* others? XXXX */ 220 reg = vrpmu_read(sc, PMUCNT_REG_W); 221 printf("vrpmu: cnt 0x%x: ", reg); 222 bitdisp16(reg); 223 reg = vrpmu_read(sc, PMUCNT2_REG_W); 224 printf("vrpmu: cnt2 0x%x: ", reg); 225 bitdisp16(reg); 226 #if NVRBCU > 0 227 cpuid = vrbcu_vrip_getcpuid(); 228 if (cpuid >= BCUREVID_RID_4111){ 229 reg = vrpmu_read(sc, PMUWAIT_REG_W); 230 printf("vrpmu: wait 0x%x", reg); 231 } 232 if (cpuid >= BCUREVID_RID_4121){ 233 reg = vrpmu_read(sc, PMUDIV_REG_W); 234 printf(" div 0x%x", reg); 235 } 236 printf("\n"); 237 #endif /* NVRBCU > 0 */ 238 } 239 240 /* 241 * PMU interrupt handler. 242 * XXX 243 * 244 * In the following interrupt routine we should actually DO something 245 * with the knowledge that we've gained. For now we just report it. 246 */ 247 int 248 vrpmu_intr(arg) 249 void *arg; 250 { 251 struct vrpmu_softc *sc = arg; 252 unsigned int intstat1; 253 unsigned int intstat2; 254 255 intstat1 = vrpmu_read(sc, PMUINT_REG_W); 256 /* clear interrupt status */ 257 vrpmu_write(sc, PMUINT_REG_W, intstat1); 258 259 260 intstat2 = vrpmu_read(sc, PMUINT2_REG_W); 261 /* clear interrupt status */ 262 vrpmu_write(sc, PMUINT2_REG_W, intstat2); 263 264 DDUMP_INTR2(DEBUG_INTR, intstat1, intstat2); 265 266 if (intstat1 & PMUINT_GPIO3) 267 ; 268 if (intstat1 & PMUINT_GPIO2) 269 ; 270 if (intstat1 & PMUINT_GPIO1) 271 ; 272 if (intstat1 & PMUINT_GPIO0) 273 ; 274 275 if (intstat1 & PMUINT_RTC) 276 ; 277 if (intstat1 & PMUINT_BATT) 278 ; 279 280 if (intstat1 & PMUINT_TIMOUTRST) 281 ; 282 if (intstat1 & PMUINT_RTCRST) 283 ; 284 if (intstat1 & PMUINT_RSTSWRST) 285 ; 286 if (intstat1 & PMUINT_DMSWRST) 287 ; 288 if (intstat1 & PMUINT_BATTINTR) 289 ; 290 if (intstat1 & PMUINT_POWERSW) { 291 /* 292 * you can't detect when the button is released 293 */ 294 config_hook_call(CONFIG_HOOK_BUTTONEVENT, 295 CONFIG_HOOK_BUTTONEVENT_POWER, 296 (void*)1 /* on */); 297 config_hook_call(CONFIG_HOOK_BUTTONEVENT, 298 CONFIG_HOOK_BUTTONEVENT_POWER, 299 (void*)0 /* off */); 300 } 301 302 if (intstat2 & PMUINT_GPIO12) 303 ; 304 if (intstat2 & PMUINT_GPIO11) 305 ; 306 if (intstat2 & PMUINT_GPIO10) 307 ; 308 if (intstat2 & PMUINT_GPIO9) 309 ; 310 311 return 0; 312 } 313
Indexes created Tue Oct 14 00:09:49 GMT 2025