1 /* $NetBSD: i82365_pci.c,v 1.11 2000/02/24 03:42:44 itohy Exp $ */ 2 3 /* 4 * Copyright (c) 1997 Marc Horowitz. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Marc Horowitz. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * XXX this driver frontend is *very* i386 dependent and should be relocated 34 */ 35 36 #include <sys/types.h> 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/device.h> 40 41 #include <dev/ic/i82365reg.h> 42 #include <dev/ic/i82365var.h> 43 44 #include <dev/pci/pcivar.h> 45 #include <dev/pci/pcireg.h> 46 #include <dev/pci/pcidevs.h> 47 #include <dev/pci/i82365_pcivar.h> 48 49 #include <dev/isa/isavar.h> 50 #include <dev/isa/i82365_isavar.h> 51 52 /* 53 * PCI constants. 54 * XXX These should be in a common file! 55 */ 56 #define PCI_CBIO 0x10 /* Configuration Base IO Address */ 57 58 int pcic_pci_match __P((struct device *, struct cfdata *, void *)); 59 void pcic_pci_attach __P((struct device *, struct device *, void *)); 60 61 struct cfattach pcic_pci_ca = { 62 sizeof(struct pcic_pci_softc), pcic_pci_match, pcic_pci_attach 63 }; 64 65 static struct pcmcia_chip_functions pcic_pci_functions = { 66 pcic_chip_mem_alloc, 67 pcic_chip_mem_free, 68 pcic_chip_mem_map, 69 pcic_chip_mem_unmap, 70 71 pcic_chip_io_alloc, 72 pcic_chip_io_free, 73 pcic_chip_io_map, 74 pcic_chip_io_unmap, 75 76 /* XXX */ 77 pcic_isa_chip_intr_establish, 78 pcic_isa_chip_intr_disestablish, 79 80 pcic_chip_socket_enable, 81 pcic_chip_socket_disable, 82 }; 83 84 static void pcic_pci_callback(struct device *); 85 86 int 87 pcic_pci_match(parent, match, aux) 88 struct device *parent; 89 struct cfdata *match; 90 void *aux; 91 { 92 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 93 94 switch (PCI_VENDOR(pa->pa_id)) { 95 case PCI_VENDOR_CIRRUS: 96 switch(PCI_PRODUCT(pa->pa_id)) { 97 case PCI_PRODUCT_CIRRUS_CL_PD6729: 98 break; 99 default: 100 return (0); 101 } 102 break; 103 default: 104 return (0); 105 } 106 return (1); 107 } 108 109 void pcic_isa_config_interrupts __P((struct device *)); 110 111 void 112 pcic_pci_attach(parent, self, aux) 113 struct device *parent, *self; 114 void *aux; 115 { 116 struct pcic_softc *sc = (void *) self; 117 struct pcic_pci_softc *psc = (void *) self; 118 struct pci_attach_args *pa = aux; 119 pci_chipset_tag_t pc = pa->pa_pc; 120 bus_space_tag_t memt = pa->pa_memt; 121 bus_space_handle_t memh; 122 char *model; 123 124 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, 125 &sc->iot, &sc->ioh, NULL, NULL)) { 126 printf(": can't map i/o space\n"); 127 return; 128 } 129 130 /* 131 * XXX need some memory for mapping pcmcia cards into. Ideally, this 132 * would be completely dynamic. Practically this doesn't work, 133 * because the extent mapper doesn't know about all the devices all 134 * the time. With ISA we could finesse the issue by specifying the 135 * memory region in the config line. We can't do that here, so we 136 * cheat for now. Jason Thorpe, you are my Savior, come up with a fix 137 * :-) 138 */ 139 140 /* Map mem space. */ 141 if (bus_space_map(memt, 0xd0000, 0x4000, 0, &memh)) 142 panic("pcic_pci_attach: can't map mem space"); 143 144 sc->membase = 0xd0000; 145 sc->subregionmask = (1 << (0x4000 / PCIC_MEM_PAGESIZE)) - 1; 146 147 /* same deal for io allocation */ 148 149 sc->iobase = 0x400; 150 sc->iosize = 0xbff; 151 152 /* end XXX */ 153 154 sc->pct = (pcmcia_chipset_tag_t) & pcic_pci_functions; 155 156 sc->memt = memt; 157 sc->memh = memh; 158 159 switch (PCI_PRODUCT(pa->pa_id)) { 160 case PCI_PRODUCT_CIRRUS_CL_PD6729: 161 model = "Cirrus Logic PD6729 PCMCIA controller"; 162 break; 163 default: 164 model = "Model unknown"; 165 break; 166 } 167 168 printf(": %s\n", model); 169 170 /* Enable the card. */ 171 pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 172 pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) | 173 PCI_COMMAND_MASTER_ENABLE); 174 175 pcic_attach(sc); 176 177 /* 178 * Check to see if we're using PCI or ISA interrupts. I don't 179 * know of any i386 systems that use the 6729 in PCI interrupt 180 * mode, but maybe when the PCMCIA code runs on other platforms 181 * we'll need to fix this. 182 */ 183 pcic_write(&sc->handle[0], PCIC_CIRRUS_EXTENDED_INDEX, 184 PCIC_CIRRUS_EXT_CONTROL_1); 185 if ((pcic_read(&sc->handle[0], PCIC_CIRRUS_EXTENDED_DATA) & 186 PCIC_CIRRUS_EXT_CONTROL_1_PCI_INTR_MASK)) { 187 printf("%s: PCI interrupts not supported\n", 188 sc->dev.dv_xname); 189 return; 190 } 191 192 psc->intr_est = pcic_pci_machdep_intr_est(pc); 193 sc->irq = -1; 194 195 #if 0 196 /* Map and establish the interrupt. */ 197 sc->ih = pcic_pci_machdep_pcic_intr_establish(sc, pcic_intr); 198 if (sc->ih == NULL) { 199 printf("%s: couldn't map interrupt\n", sc->dev.dv_xname); 200 return; 201 } 202 #endif 203 204 /* 205 * Defer configuration of children until ISA has had its chance 206 * to use up whatever IO space and IRQs it wants. XXX This will 207 * only work if ISA is attached to a pcib, AND the PCI probe finds 208 * and defers the ISA attachment before this one. 209 */ 210 config_defer(self, pcic_pci_callback); 211 config_interrupts(self, pcic_isa_config_interrupts); 212 } 213 214 static void 215 pcic_pci_callback(self) 216 struct device *self; 217 { 218 struct pcic_softc *sc = (void *) self; 219 220 pcic_attach_sockets(sc); 221 } 222