Annotation of sys/arch/macppc/pci/macobio.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: macobio.c,v 1.17 2006/06/19 22:42:35 miod Exp $ */
! 2: /* $NetBSD: obio.c,v 1.6 1999/05/01 10:36:08 tsubai Exp $ */
! 3:
! 4: /*-
! 5: * Copyright (C) 1998 Internet Research Institute, Inc.
! 6: * All rights reserved.
! 7: *
! 8: * Redistribution and use in source and binary forms, with or without
! 9: * modification, are permitted provided that the following conditions
! 10: * are met:
! 11: * 1. Redistributions of source code must retain the above copyright
! 12: * notice, this list of conditions and the following disclaimer.
! 13: * 2. Redistributions in binary form must reproduce the above copyright
! 14: * notice, this list of conditions and the following disclaimer in the
! 15: * documentation and/or other materials provided with the distribution.
! 16: * 3. All advertising materials mentioning features or use of this software
! 17: * must display the following acknowledgement:
! 18: * This product includes software developed by
! 19: * Internet Research Institute, Inc.
! 20: * 4. The name of the author may not be used to endorse or promote products
! 21: * derived from this software without specific prior written permission.
! 22: *
! 23: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 24: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 25: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 26: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
! 27: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 28: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 29: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 30: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 31: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
! 32: * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 33: */
! 34:
! 35: #include <sys/types.h>
! 36: #include <sys/param.h>
! 37: #include <sys/systm.h>
! 38: #include <sys/kernel.h>
! 39: #include <sys/device.h>
! 40:
! 41: #include <dev/pci/pcivar.h>
! 42: #include <dev/pci/pcidevs.h>
! 43:
! 44: #include <dev/ofw/openfirm.h>
! 45:
! 46: #include <machine/bus.h>
! 47: #include <machine/autoconf.h>
! 48:
! 49: void macobio_attach(struct device *, struct device *, void *);
! 50: int macobio_match(struct device *, void *, void *);
! 51: int macobio_print(void *, const char *);
! 52: void macobio_modem_power(int enable);
! 53:
! 54: void *undef_mac_establish(void * lcv, int irq, int type, int level,
! 55: int (*ih_fun)(void *), void *ih_arg, char *name);
! 56: void mac_intr_disestab(void *lcp, void *arg);
! 57:
! 58: struct macobio_softc {
! 59: struct device sc_dev;
! 60: int sc_node;
! 61: struct ppc_bus_space sc_membus_space;
! 62: int sc_id; /* copy of the PCI pa_id */
! 63: u_int8_t *obiomem;
! 64: };
! 65: struct cfdriver macobio_cd = {
! 66: NULL, "macobio", DV_DULL,
! 67: };
! 68:
! 69:
! 70: struct cfattach macobio_ca = {
! 71: sizeof(struct macobio_softc), macobio_match, macobio_attach
! 72: };
! 73:
! 74: int
! 75: macobio_match(struct device *parent, void *cf, void *aux)
! 76: {
! 77: struct pci_attach_args *pa = aux;
! 78:
! 79: if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_APPLE)
! 80: switch (PCI_PRODUCT(pa->pa_id)) {
! 81:
! 82: case PCI_PRODUCT_APPLE_GC:
! 83: case PCI_PRODUCT_APPLE_OHARE:
! 84: case PCI_PRODUCT_APPLE_HEATHROW:
! 85: case PCI_PRODUCT_APPLE_PADDINGTON:
! 86: case PCI_PRODUCT_APPLE_KEYLARGO:
! 87: case PCI_PRODUCT_APPLE_INTREPID:
! 88: case PCI_PRODUCT_APPLE_PANGEA_MACIO:
! 89: case PCI_PRODUCT_APPLE_SHASTA:
! 90: case PCI_PRODUCT_APPLE_K2_MACIO:
! 91: return 1;
! 92: }
! 93:
! 94: return 0;
! 95: }
! 96:
! 97: #define HEATHROW_FCR_OFFSET 0x38
! 98: u_int32_t *heathrow_FCR = NULL;
! 99:
! 100: /*
! 101: * Attach all the sub-devices we can find
! 102: */
! 103: void
! 104: macobio_attach(struct device *parent, struct device *self, void *aux)
! 105: {
! 106: struct macobio_softc *sc = (struct macobio_softc *)self;
! 107: struct pci_attach_args *pa = aux;
! 108: struct confargs ca;
! 109: int node, child, namelen;
! 110: u_int32_t reg[20];
! 111: int32_t intr[8];
! 112: char name[32];
! 113: int need_interrupt_controller = 0;
! 114:
! 115: sc->sc_id = pa->pa_id; /* save of type for later */
! 116:
! 117: switch (PCI_PRODUCT(pa->pa_id)) {
! 118:
! 119: /* XXX should not use name */
! 120: case PCI_PRODUCT_APPLE_GC:
! 121: node = OF_finddevice("/bandit/gc");
! 122: need_interrupt_controller = 1;
! 123: break;
! 124:
! 125: case PCI_PRODUCT_APPLE_OHARE:
! 126: node = OF_finddevice("/bandit/ohare");
! 127: need_interrupt_controller = 1;
! 128: break;
! 129:
! 130: case PCI_PRODUCT_APPLE_HEATHROW:
! 131: case PCI_PRODUCT_APPLE_PADDINGTON:
! 132: node = OF_finddevice("mac-io");
! 133: if (node == -1)
! 134: node = OF_finddevice("/pci/mac-io");
! 135: if (OF_getprop(node, "assigned-addresses", reg, sizeof(reg))
! 136: == (sizeof (reg[0]) * 5))
! 137: {
! 138: /* always ??? */
! 139: heathrow_FCR = mapiodev(reg[2] + HEATHROW_FCR_OFFSET,
! 140: 4);
! 141: }
! 142: break;
! 143: case PCI_PRODUCT_APPLE_KEYLARGO:
! 144: case PCI_PRODUCT_APPLE_INTREPID:
! 145: case PCI_PRODUCT_APPLE_PANGEA_MACIO:
! 146: case PCI_PRODUCT_APPLE_SHASTA:
! 147: case PCI_PRODUCT_APPLE_K2_MACIO:
! 148: node = OF_finddevice("mac-io");
! 149: if (node == -1)
! 150: node = OF_finddevice("/pci/mac-io");
! 151: if (OF_getprop(node, "assigned-addresses", reg, sizeof(reg))
! 152: == (sizeof (reg[0]) * 5))
! 153: sc->obiomem = mapiodev(reg[2], 0x100);
! 154: break;
! 155: default:
! 156: printf(": unknown macobio controller\n");
! 157: return;
! 158: }
! 159: sc->sc_node = node;
! 160:
! 161: if (OF_getprop(node, "assigned-addresses", reg, sizeof(reg)) < 12)
! 162: return;
! 163:
! 164: ca.ca_baseaddr = reg[2];
! 165:
! 166: sc->sc_membus_space.bus_base = ca.ca_baseaddr;
! 167:
! 168: ca.ca_iot = &sc->sc_membus_space;
! 169: ca.ca_dmat = pa->pa_dmat;
! 170:
! 171: printf("\n");
! 172:
! 173: /*
! 174: * This might be a hack, but it makes the interrupt controller
! 175: * attach as expected if a device node existed in the OF tree.
! 176: */
! 177: if (need_interrupt_controller) {
! 178: /* force attachment of legacy interrupt controllers */
! 179: ca.ca_name = "legacy-interrupt-controller";
! 180: ca.ca_node = 0;
! 181:
! 182: ca.ca_nreg = 0;
! 183: ca.ca_nintr = 0;
! 184:
! 185: ca.ca_reg = NULL;
! 186: ca.ca_intr = NULL;
! 187:
! 188: config_found(self, &ca, macobio_print);
! 189: }
! 190:
! 191: for (child = OF_child(node); child; child = OF_peer(child)) {
! 192: namelen = OF_getprop(child, "name", name, sizeof(name));
! 193: if (namelen < 0)
! 194: continue;
! 195: if (namelen >= sizeof(name))
! 196: continue;
! 197:
! 198: name[namelen] = 0;
! 199: ca.ca_name = name;
! 200: ca.ca_node = child;
! 201:
! 202: ca.ca_nreg = OF_getprop(child, "reg", reg, sizeof(reg));
! 203: ca.ca_nintr = OF_getprop(child, "AAPL,interrupts", intr,
! 204: sizeof(intr));
! 205: if (ca.ca_nintr == -1)
! 206: ca.ca_nintr = OF_getprop(child, "interrupts", intr,
! 207: sizeof(intr));
! 208:
! 209: ca.ca_reg = reg;
! 210: ca.ca_intr = intr;
! 211:
! 212: config_found(self, &ca, macobio_print);
! 213: }
! 214: }
! 215:
! 216: int
! 217: macobio_print(void *aux, const char *macobio)
! 218: {
! 219: struct confargs *ca = aux;
! 220:
! 221: if (macobio)
! 222: printf("\"%s\" at %s", ca->ca_name, macobio);
! 223:
! 224: if (ca->ca_nreg > 0)
! 225: printf(" offset 0x%x", ca->ca_reg[0]);
! 226:
! 227: return UNCONF;
! 228: }
! 229:
! 230: void *
! 231: undef_mac_establish(void * lcv, int irq, int type, int level,
! 232: int (*ih_fun)(void *), void *ih_arg, char *name)
! 233: {
! 234: printf("mac_intr_establish called, not yet inited\n");
! 235: return 0;
! 236: }
! 237:
! 238: void
! 239: mac_intr_disestab(void *lcp, void *arg)
! 240: {
! 241: printf("mac_intr_disestablish called, not yet inited\n");
! 242: }
! 243:
! 244: intr_establish_t *mac_intr_establish_func = undef_mac_establish;
! 245: intr_disestablish_t *mac_intr_disestablish_func = mac_intr_disestab;
! 246:
! 247: void *
! 248: mac_intr_establish(void * lcv, int irq, int type, int level,
! 249: int (*ih_fun)(void *), void *ih_arg, char *name)
! 250: {
! 251: return (*mac_intr_establish_func)(lcv, irq, type, level, ih_fun,
! 252: ih_arg, name);
! 253: }
! 254: void
! 255: mac_intr_disestablish(void *lcp, void *arg)
! 256: {
! 257: (*mac_intr_disestablish_func)(lcp, arg);
! 258: }
! 259:
! 260: void keylargo_fcr_enable(int offset, u_int32_t bits);
! 261: void keylargo_fcr_disable(int offset, u_int32_t bits);
! 262: u_int32_t keylargo_fcr_read(int offset);
! 263:
! 264: void
! 265: keylargo_fcr_enable(int offset, u_int32_t bits)
! 266: {
! 267: struct macobio_softc *sc = macobio_cd.cd_devs[0];
! 268: if (sc->obiomem == 0)
! 269: return;
! 270:
! 271: bits |= in32rb(sc->obiomem + offset);
! 272: out32rb(sc->obiomem + offset, bits);
! 273: }
! 274: void
! 275: keylargo_fcr_disable(int offset, u_int32_t bits)
! 276: {
! 277: struct macobio_softc *sc = macobio_cd.cd_devs[0];
! 278: if (sc->obiomem == 0)
! 279: return;
! 280:
! 281: bits = in32rb(sc->obiomem + offset) & ~bits;
! 282: out32rb(sc->obiomem + offset, bits);
! 283: }
! 284:
! 285: u_int32_t
! 286: keylargo_fcr_read(int offset)
! 287: {
! 288: struct macobio_softc *sc = macobio_cd.cd_devs[0];
! 289: if (sc->obiomem == 0)
! 290: return -1;
! 291:
! 292: return in32rb(sc->obiomem + offset);
! 293: }
! 294:
! 295: void
! 296: macobio_modem_power(int enable)
! 297: {
! 298: u_int32_t val;
! 299: struct macobio_softc *sc = macobio_cd.cd_devs[0];
! 300: if (PCI_PRODUCT(sc->sc_id) == PCI_PRODUCT_APPLE_KEYLARGO ||
! 301: PCI_PRODUCT(sc->sc_id) == PCI_PRODUCT_APPLE_INTREPID) {
! 302: val = in32rb(sc->obiomem + 0x40);
! 303: if (enable)
! 304: val = val & ~((u_int32_t)1<<25);
! 305: else
! 306: val = val | ((u_int32_t)1<<25);
! 307: out32rb(sc->obiomem + 0x40, val);
! 308: }
! 309: if (PCI_PRODUCT(sc->sc_id) == PCI_PRODUCT_APPLE_PANGEA_MACIO) {
! 310: if (enable) {
! 311: /* set reset */
! 312: out8(sc->obiomem + 0x006a + 0x03, 0x04);
! 313: /* power modem on */
! 314: out8(sc->obiomem + 0x006a + 0x02, 0x04);
! 315: /* unset reset */
! 316: out8(sc->obiomem + 0x006a + 0x03, 0x05);
! 317: } else {
! 318: /* disable it how? */
! 319: }
! 320: }
! 321: }
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