1 /* $NetBSD: i82365_pci.c,v 1.13 2001/11/15 09:48:12 lukem 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/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: i82365_pci.c,v 1.13 2001/11/15 09:48:12 lukem Exp $"); 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/device.h> 42 43 #include <dev/ic/i82365reg.h> 44 #include <dev/ic/i82365var.h> 45 46 #include <dev/pci/pcivar.h> 47 #include <dev/pci/pcireg.h> 48 #include <dev/pci/pcidevs.h> 49 #include <dev/pci/i82365_pcivar.h> 50 51 #include <dev/isa/isavar.h> 52 #include <dev/isa/i82365_isavar.h> 53 54 /* 55 * PCI constants. 56 * XXX These should be in a common file! 57 */ 58 #define PCI_CBIO 0x10 /* Configuration Base IO Address */ 59 60 int pcic_pci_match __P((struct device *, struct cfdata *, void *)); 61 void pcic_pci_attach __P((struct device *, struct device *, void *)); 62 63 struct cfattach pcic_pci_ca = { 64 sizeof(struct pcic_pci_softc), pcic_pci_match, pcic_pci_attach 65 }; 66 67 static struct pcmcia_chip_functions pcic_pci_functions = { 68 pcic_chip_mem_alloc, 69 pcic_chip_mem_free, 70 pcic_chip_mem_map, 71 pcic_chip_mem_unmap, 72 73 pcic_chip_io_alloc, 74 pcic_chip_io_free, 75 pcic_chip_io_map, 76 pcic_chip_io_unmap, 77 78 /* XXX */ 79 pcic_isa_chip_intr_establish, 80 pcic_isa_chip_intr_disestablish, 81 82 pcic_chip_socket_enable, 83 pcic_chip_socket_disable, 84 }; 85 86 static void pcic_pci_callback(struct device *); 87 88 int 89 pcic_pci_match(parent, match, aux) 90 struct device *parent; 91 struct cfdata *match; 92 void *aux; 93 { 94 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 95 96 switch (PCI_VENDOR(pa->pa_id)) { 97 case PCI_VENDOR_CIRRUS: 98 switch(PCI_PRODUCT(pa->pa_id)) { 99 case PCI_PRODUCT_CIRRUS_CL_PD6729: 100 break; 101 default: 102 return (0); 103 } 104 break; 105 default: 106 return (0); 107 } 108 return (1); 109 } 110 111 void pcic_isa_config_interrupts __P((struct device *)); 112 113 void 114 pcic_pci_attach(parent, self, aux) 115 struct device *parent, *self; 116 void *aux; 117 { 118 struct pcic_softc *sc = (void *) self; 119 struct pcic_pci_softc *psc = (void *) self; 120 struct pci_attach_args *pa = aux; 121 pci_chipset_tag_t pc = pa->pa_pc; 122 bus_space_tag_t memt = pa->pa_memt; 123 bus_space_handle_t memh; 124 char *model; 125 126 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, 127 &sc->iot, &sc->ioh, NULL, NULL)) { 128 printf(": can't map i/o space\n"); 129 return; 130 } 131 132 /* 133 * XXX need some memory for mapping pcmcia cards into. Ideally, this 134 * would be completely dynamic. Practically this doesn't work, 135 * because the extent mapper doesn't know about all the devices all 136 * the time. With ISA we could finesse the issue by specifying the 137 * memory region in the config line. We can't do that here, so we 138 * cheat for now. Jason Thorpe, you are my Savior, come up with a fix 139 * :-) 140 */ 141 142 /* Map mem space. */ 143 if (bus_space_map(memt, 0xd0000, 0x4000, 0, &memh)) 144 panic("pcic_pci_attach: can't map mem space"); 145 146 sc->membase = 0xd0000; 147 sc->subregionmask = (1 << (0x4000 / PCIC_MEM_PAGESIZE)) - 1; 148 149 /* same deal for io allocation */ 150 151 sc->iobase = 0x400; 152 sc->iosize = 0xbff; 153 154 /* end XXX */ 155 156 sc->pct = (pcmcia_chipset_tag_t) & pcic_pci_functions; 157 158 sc->memt = memt; 159 sc->memh = memh; 160 161 switch (PCI_PRODUCT(pa->pa_id)) { 162 case PCI_PRODUCT_CIRRUS_CL_PD6729: 163 model = "Cirrus Logic PD6729 PCMCIA controller"; 164 break; 165 default: 166 model = "Model unknown"; 167 break; 168 } 169 170 printf(": %s\n", model); 171 172 /* Enable the card. */ 173 pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 174 pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) | 175 PCI_COMMAND_MASTER_ENABLE); 176 177 pcic_attach(sc); 178 179 /* 180 * Check to see if we're using PCI or ISA interrupts. I don't 181 * know of any i386 systems that use the 6729 in PCI interrupt 182 * mode, but maybe when the PCMCIA code runs on other platforms 183 * we'll need to fix this. 184 */ 185 pcic_write(&sc->handle[0], PCIC_CIRRUS_EXTENDED_INDEX, 186 PCIC_CIRRUS_EXT_CONTROL_1); 187 if ((pcic_read(&sc->handle[0], PCIC_CIRRUS_EXTENDED_DATA) & 188 PCIC_CIRRUS_EXT_CONTROL_1_PCI_INTR_MASK)) { 189 printf("%s: PCI interrupts not supported\n", 190 sc->dev.dv_xname); 191 return; 192 } 193 194 psc->intr_est = pcic_pci_machdep_intr_est(pc); 195 sc->irq = -1; 196 197 #if 0 198 /* Map and establish the interrupt. */ 199 sc->ih = pcic_pci_machdep_pcic_intr_establish(sc, pcic_intr); 200 if (sc->ih == NULL) { 201 printf("%s: couldn't map interrupt\n", sc->dev.dv_xname); 202 return; 203 } 204 #endif 205 206 /* 207 * Defer configuration of children until ISA has had its chance 208 * to use up whatever IO space and IRQs it wants. XXX This will 209 * only work if ISA is attached to a pcib, AND the PCI probe finds 210 * and defers the ISA attachment before this one. 211 */ 212 config_defer(self, pcic_pci_callback); 213 config_interrupts(self, pcic_isa_config_interrupts); 214 } 215 216 static void 217 pcic_pci_callback(self) 218 struct device *self; 219 { 220 struct pcic_softc *sc = (void *) self; 221 222 pcic_attach_sockets(sc); 223 } 224