sbus.c revision 1.16
1 /* $NetBSD: sbus.c,v 1.16 2016/07/19 13:48:51 maya 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * PlayStation 2 internal PCMCIA/USB interface unit. 34 */ 35 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: sbus.c,v 1.16 2016/07/19 13:48:51 maya Exp $"); 38 39 #include <sys/param.h> 40 #include <sys/device.h> 41 #include <sys/systm.h> 42 43 #include <machine/bootinfo.h> 44 #include <machine/autoconf.h> 45 46 #include <playstation2/playstation2/interrupt.h> 47 48 #include <playstation2/ee/eevar.h> 49 #include <playstation2/ee/intcvar.h> 50 #include <playstation2/dev/sbusvar.h> 51 #include <playstation2/dev/sbusreg.h> 52 53 #ifdef DEBUG 54 #define STATIC 55 #else 56 #define STATIC static 57 #endif 58 59 STATIC void sbus_type2_pcmcia_intr_clear(void); 60 STATIC void sbus_type2_pcmcia_intr_enable(void); 61 STATIC void sbus_type2_pcmcia_intr_disable(void); 62 STATIC void sbus_type2_pcmcia_intr_reinstall(void); 63 STATIC void sbus_type3_pcmcia_intr_clear(void); 64 STATIC void sbus_type3_pcmcia_intr_enable(void); 65 STATIC void sbus_type3_pcmcia_intr_disable(void); 66 STATIC void sbus_type3_pcmcia_intr_reinstall(void); 67 STATIC int sbus_spurious_intr(void *); 68 69 STATIC void (*sbus_pcmcia_intr_clear)(void); 70 STATIC void (*sbus_pcmcia_intr_enable)(void); 71 STATIC void (*sbus_pcmcia_intr_disable)(void); 72 STATIC void (*sbus_pcmcia_intr_reinstall)(void); 73 74 STATIC int (*sbus_pcmcia_intr)(void *) = sbus_spurious_intr; 75 STATIC void *sbus_pcmcia_context; 76 STATIC int (*sbus_usb_intr)(void *) = sbus_spurious_intr; 77 STATIC void *sbus_usb_context; 78 79 STATIC void sbus_init(int); 80 STATIC int sbus_intr(void *); 81 82 STATIC int sbus_match(struct device *, cfdata_t, void *); 83 STATIC void sbus_attach(struct device *, struct device *, void *); 84 STATIC int sbus_search(struct device *, cfdata_t, 85 const int *, void *); 86 STATIC int sbus_print(void *, const char *); 87 88 CFATTACH_DECL(sbus, sizeof (struct device), 89 sbus_match, sbus_attach, NULL, NULL); 90 91 extern struct cfdriver sbus_cd; 92 STATIC int __sbus_attached; 93 94 int 95 sbus_match(struct device *parent, cfdata_t cf, void *aux) 96 { 97 struct mainbus_attach_args *ma = aux; 98 99 if (strcmp(ma->ma_name, sbus_cd.cd_name) != 0) 100 return (0); 101 102 return (!__sbus_attached); 103 } 104 105 void 106 sbus_attach(struct device *parent, struct device *self, void *aux) 107 { 108 int type = BOOTINFO_REF(BOOTINFO_PCMCIA_TYPE); 109 110 printf(": controller type %d\n", type); 111 112 /* Initialize SBUS controller */ 113 sbus_init(type); 114 115 config_search_ia(sbus_search, self, "sbus", 0); 116 } 117 118 int 119 sbus_search(struct device *parent, cfdata_t cf, 120 const int *ldesc, void *aux) 121 { 122 struct sbus_attach_args sa; 123 124 if (config_match(parent, cf, &sa)) 125 config_attach(parent, cf, &sa, sbus_print); 126 127 return (0); 128 } 129 130 int 131 sbus_print(void *aux, const char *pnp) 132 { 133 134 return (pnp ? QUIET : UNCONF); 135 } 136 137 void 138 sbus_init(int type) 139 { 140 /* install model dependent hook */ 141 #define SET_PCMCIA_INTR_OPS(x) \ 142 sbus_pcmcia_intr_clear = sbus_type##x##_pcmcia_intr_clear; \ 143 sbus_pcmcia_intr_enable = sbus_type##x##_pcmcia_intr_enable; \ 144 sbus_pcmcia_intr_disable = sbus_type##x##_pcmcia_intr_disable; \ 145 sbus_pcmcia_intr_reinstall = sbus_type##x##_pcmcia_intr_reinstall 146 147 switch (type) { 148 default: 149 panic("unknown pcmcia controller type = %d", type); 150 break; 151 case 0: 152 /* FALLTHROUGH */ 153 case 1: 154 /* FALLTHROUGH */ 155 case 2: 156 SET_PCMCIA_INTR_OPS(2); 157 break; 158 case 3: 159 SET_PCMCIA_INTR_OPS(3); 160 break; 161 } 162 #undef SET_PCMCIA_INTR_OPS 163 /* disable interrupt */ 164 (*sbus_pcmcia_intr_disable)(); 165 166 /* clear interrupt */ 167 (*sbus_pcmcia_intr_clear)(); 168 _reg_write_4(SBUS_SMFLG_REG, SMFLG_PCMCIA_INT); 169 _reg_write_4(SBUS_SMFLG_REG, SMFLG_USB_INT); 170 171 /* connect to INTC */ 172 intc_intr_establish(I_CH1_SBUS, IPL_BIO, sbus_intr, 0); 173 } 174 175 void * 176 sbus_intr_establish(enum sbus_irq irq, int (*ih_func)(void *), void *ih_arg) 177 { 178 switch (irq) { 179 default: 180 panic("unknown IRQ"); 181 break; 182 case SBUS_IRQ_PCMCIA: 183 sbus_pcmcia_intr = ih_func; 184 sbus_pcmcia_context = ih_arg; 185 (*sbus_pcmcia_intr_enable)(); 186 break; 187 case SBUS_IRQ_USB: 188 sbus_usb_intr = ih_func; 189 sbus_usb_context = ih_arg; 190 break; 191 } 192 193 return (void *)irq; 194 } 195 196 void 197 sbus_intr_disestablish(void *handle) 198 { 199 int irq = (int)handle; 200 201 switch (irq) { 202 default: 203 panic("unknown IRQ"); 204 break; 205 case SBUS_IRQ_PCMCIA: 206 sbus_pcmcia_intr = sbus_spurious_intr; 207 (*sbus_pcmcia_intr_disable)(); 208 break; 209 case SBUS_IRQ_USB: 210 sbus_usb_intr = sbus_spurious_intr; 211 break; 212 } 213 } 214 215 int 216 sbus_intr(void *arg) 217 { 218 u_int32_t stat; 219 220 _playstation2_evcnt.sbus.ev_count++; 221 stat = _reg_read_4(SBUS_SMFLG_REG); 222 223 if (stat & SMFLG_PCMCIA_INT) { 224 (*sbus_pcmcia_intr_clear)(); 225 _reg_write_4(SBUS_SMFLG_REG, SMFLG_PCMCIA_INT); 226 (*sbus_pcmcia_intr)(sbus_pcmcia_context); 227 } 228 229 if (stat & SMFLG_USB_INT) { 230 _reg_write_4(SBUS_SMFLG_REG, SMFLG_USB_INT); 231 (*sbus_usb_intr)(sbus_usb_context); 232 } 233 234 (*sbus_pcmcia_intr_reinstall)(); 235 236 return (1); 237 } 238 239 int 240 sbus_spurious_intr(void *arg) 241 { 242 243 printf("spurious interrupt.\n"); 244 245 return (1); 246 } 247 248 /* SCPH-18000 */ 249 void 250 sbus_type2_pcmcia_intr_clear(void) 251 { 252 253 if (_reg_read_2(SBUS_PCMCIA_CSC1_REG16) & 0x080) 254 _reg_write_2(SBUS_PCMCIA_CSC1_REG16, 0xffff); 255 } 256 257 void 258 sbus_type2_pcmcia_intr_enable(void) 259 { 260 261 _reg_write_2(SBUS_PCMCIA_TIMR_REG16, 0); 262 } 263 264 void 265 sbus_type2_pcmcia_intr_disable(void) 266 { 267 268 _reg_write_2(SBUS_PCMCIA_TIMR_REG16, 1); 269 } 270 271 void 272 sbus_type2_pcmcia_intr_reinstall(void) 273 { 274 u_int16_t r = _reg_read_2(SBUS_PCMCIA_TIMR_REG16); 275 276 _reg_write_2(SBUS_PCMCIA_TIMR_REG16, 1); 277 _reg_write_2(SBUS_PCMCIA_TIMR_REG16, r); 278 } 279 280 /* SCPH-30000/35000 */ 281 void 282 sbus_type3_pcmcia_intr_clear(void) 283 { 284 /* nothing */ 285 } 286 287 void 288 sbus_type3_pcmcia_intr_enable(void) 289 { 290 291 _reg_write_2(SBUS_PCMCIA3_TIMR_REG16, 0); 292 } 293 294 void 295 sbus_type3_pcmcia_intr_disable(void) 296 { 297 298 _reg_write_2(SBUS_PCMCIA3_TIMR_REG16, 1); 299 } 300 301 void 302 sbus_type3_pcmcia_intr_reinstall(void) 303 { 304 u_int16_t r = _reg_read_2(SBUS_PCMCIA3_TIMR_REG16); 305 306 _reg_write_2(SBUS_PCMCIA3_TIMR_REG16, 1); 307 _reg_write_2(SBUS_PCMCIA3_TIMR_REG16, r); 308 } 309
Indexes created Tue Sep 30 06:09:59 GMT 2025