1 /* $OpenBSD: i82365_pci.c,v 1.9 2005/08/09 04:10:11 mickey Exp $ */ 2 /* $NetBSD: i82365_pci.c,v 1.11 2000/02/24 03:42:44 itohy Exp $ */ 3 4 /* 5 * Copyright (c) 1997 Marc Horowitz. 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 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Marc Horowitz. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * XXX this driver frontend is *very* i386 dependent and should be relocated 35 */ 36 37 #include <sys/types.h> 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/kernel.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(struct device *, void *, void *); 61 void pcic_pci_attach(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 pcic_isa_chip_intr_string, 82 83 pcic_chip_socket_enable, 84 pcic_chip_socket_disable, 85 }; 86 87 int 88 pcic_pci_match(parent, match, aux) 89 struct device *parent; 90 void *match; 91 void *aux; 92 { 93 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 94 95 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_CIRRUS && 96 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CIRRUS_CL_PD6729) 97 return (1); 98 return (0); 99 } 100 101 void pcic_isa_config_interrupts(struct device *); 102 103 void 104 pcic_pci_attach(parent, self, aux) 105 struct device *parent, *self; 106 void *aux; 107 { 108 struct pcic_softc *sc = (void *) self; 109 struct pcic_pci_softc *psc = (void *) self; 110 struct pcic_handle *h; 111 struct pci_attach_args *pa = aux; 112 pci_chipset_tag_t pc = pa->pa_pc; 113 bus_space_tag_t memt = pa->pa_memt; 114 bus_space_handle_t memh; 115 bus_size_t size; 116 int irq, i; 117 118 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, 119 &sc->iot, &sc->ioh, NULL, &size, 0)) { 120 printf(": can't map i/o space\n"); 121 return; 122 } 123 124 /* 125 * XXX need some memory for mapping pcmcia cards into. Ideally, this 126 * would be completely dynamic. Practically this doesn't work, 127 * because the extent mapper doesn't know about all the devices all 128 * the time. With ISA we could finesse the issue by specifying the 129 * memory region in the config line. We can't do that here, so we 130 * cheat for now. Jason Thorpe, you are my Savior, come up with a fix 131 * :-) 132 */ 133 134 /* Map mem space. */ 135 if (bus_space_map(memt, 0xd0000, 0x10000, 0, &memh)) { 136 printf(": can't map mem space"); 137 bus_space_unmap(sc->iot, sc->ioh, size); 138 return; 139 } 140 141 sc->membase = 0xd0000; 142 sc->subregionmask = (1 << (0x10000 / PCIC_MEM_PAGESIZE)) - 1; 143 144 /* same deal for io allocation */ 145 146 sc->iobase = 0x400; 147 sc->iosize = 0xbff; 148 149 /* end XXX */ 150 151 sc->pct = (pcmcia_chipset_tag_t) & pcic_pci_functions; 152 153 sc->memt = memt; 154 sc->memh = memh; 155 156 printf("\n"); 157 pcic_attach(sc); 158 pcic_attach_sockets(sc); 159 160 /* 161 * Check to see if we're using PCI or ISA interrupts. I don't 162 * know of any i386 systems that use the 6729 in PCI interrupt 163 * mode, but maybe when the PCMCIA code runs on other platforms 164 * we'll need to fix this. 165 */ 166 pcic_write(&sc->handle[0], PCIC_CIRRUS_EXTENDED_INDEX, 167 PCIC_CIRRUS_EXT_CONTROL_1); 168 if ((pcic_read(&sc->handle[0], PCIC_CIRRUS_EXTENDED_DATA) & 169 PCIC_CIRRUS_EXT_CONTROL_1_PCI_INTR_MASK)) { 170 printf("%s: PCI interrupts not supported\n", 171 sc->dev.dv_xname); 172 return; 173 } 174 175 psc->intr_est = pcic_pci_machdep_intr_est(pc); 176 177 irq = pcic_intr_find(sc, IST_EDGE); 178 179 /* Map and establish the interrupt. */ 180 if (irq) { 181 sc->ih = pcic_pci_machdep_pcic_intr_establish(sc, pcic_intr); 182 if (sc->ih == NULL) { 183 printf("%s: couldnt map interrupt\n", sc->dev.dv_xname); 184 bus_space_unmap(memt, memh, 0x10000); 185 bus_space_unmap(sc->iot, sc->ioh, size); 186 return; 187 } 188 } 189 sc->irq = irq; 190 191 if (irq) { 192 printf("%s: irq %d, ", sc->dev.dv_xname, irq); 193 194 /* Set up the pcic to interrupt on card detect. */ 195 for (i = 0; i < PCIC_NSLOTS; i++) { 196 h = &sc->handle[i]; 197 if (h->flags & PCIC_FLAG_SOCKETP) { 198 pcic_write(h, PCIC_CSC_INTR, 199 (sc->irq << PCIC_CSC_INTR_IRQ_SHIFT) | 200 PCIC_CSC_INTR_CD_ENABLE); 201 powerhook_establish(pcic_power, h); 202 } 203 } 204 } else 205 printf("%s: no irq, ", sc->dev.dv_xname); 206 207 printf("polling enabled\n"); 208 if (sc->poll_established == 0) { 209 timeout_set(&sc->poll_timeout, pcic_poll_intr, sc); 210 timeout_add(&sc->poll_timeout, hz / 2); 211 sc->poll_established = 1; 212 } 213 } 214