1 /* $OpenBSD: i82365_pci.c,v 1.17 2024/09/04 07:54:52 mglocker 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/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/i82365_isavar.h> 50 51 /* 52 * PCI constants. 53 * XXX These should be in a common file! 54 */ 55 #define PCI_CBIO 0x10 /* Configuration Base IO Address */ 56 57 int pcic_pci_match(struct device *, void *, void *); 58 void pcic_pci_attach(struct device *, struct device *, void *); 59 60 const struct cfattach pcic_pci_ca = { 61 sizeof(struct pcic_pci_softc), pcic_pci_match, pcic_pci_attach 62 }; 63 64 static struct pcmcia_chip_functions pcic_pci_functions = { 65 pcic_chip_mem_alloc, 66 pcic_chip_mem_free, 67 pcic_chip_mem_map, 68 pcic_chip_mem_unmap, 69 70 pcic_chip_io_alloc, 71 pcic_chip_io_free, 72 pcic_chip_io_map, 73 pcic_chip_io_unmap, 74 75 /* XXX */ 76 pcic_isa_chip_intr_establish, 77 pcic_isa_chip_intr_disestablish, 78 pcic_isa_chip_intr_string, 79 80 pcic_chip_socket_enable, 81 pcic_chip_socket_disable, 82 }; 83 84 int 85 pcic_pci_match(struct device *parent, void *match, void *aux) 86 { 87 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 88 89 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_CIRRUS && 90 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CIRRUS_CL_PD6729) 91 return (1); 92 return (0); 93 } 94 95 void 96 pcic_pci_attach(struct device *parent, struct device *self, void *aux) 97 { 98 struct pcic_softc *sc = (void *) self; 99 struct pcic_pci_softc *psc = (void *) self; 100 struct pcic_handle *h; 101 struct pci_attach_args *pa = aux; 102 pci_chipset_tag_t pc = pa->pa_pc; 103 bus_space_tag_t memt = pa->pa_memt; 104 bus_space_handle_t memh; 105 bus_size_t size; 106 int irq, i; 107 108 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, 109 &sc->iot, &sc->ioh, NULL, &size, 0)) { 110 printf(": can't map i/o space\n"); 111 return; 112 } 113 114 /* 115 * XXX need some memory for mapping pcmcia cards into. Ideally, this 116 * would be completely dynamic. Practically this doesn't work, 117 * because the extent mapper doesn't know about all the devices all 118 * the time. With ISA we could finesse the issue by specifying the 119 * memory region in the config line. We can't do that here, so we 120 * cheat for now. Jason Thorpe, you are my Savior, come up with a fix 121 * :-) 122 */ 123 124 /* Map mem space. */ 125 if (bus_space_map(memt, 0xd0000, 0x10000, 0, &memh)) { 126 printf(": can't map mem space"); 127 bus_space_unmap(sc->iot, sc->ioh, size); 128 return; 129 } 130 131 sc->membase = 0xd0000; 132 sc->subregionmask = (1 << (0x10000 / PCIC_MEM_PAGESIZE)) - 1; 133 134 /* same deal for io allocation */ 135 136 sc->iobase = 0x400; 137 sc->iosize = 0xbff; 138 139 /* end XXX */ 140 141 sc->pct = (pcmcia_chipset_tag_t) & pcic_pci_functions; 142 143 sc->memt = memt; 144 sc->memh = memh; 145 146 printf("\n"); 147 pcic_attach(sc); 148 pcic_attach_sockets(sc); 149 150 /* 151 * Check to see if we're using PCI or ISA interrupts. I don't 152 * know of any i386 systems that use the 6729 in PCI interrupt 153 * mode, but maybe when the PCMCIA code runs on other platforms 154 * we'll need to fix this. 155 */ 156 pcic_write(&sc->handle[0], PCIC_CIRRUS_EXTENDED_INDEX, 157 PCIC_CIRRUS_EXT_CONTROL_1); 158 if ((pcic_read(&sc->handle[0], PCIC_CIRRUS_EXTENDED_DATA) & 159 PCIC_CIRRUS_EXT_CONTROL_1_PCI_INTR_MASK)) { 160 printf("%s: PCI interrupts not supported\n", 161 sc->dev.dv_xname); 162 return; 163 } 164 165 psc->intr_est = pcic_pci_machdep_intr_est(pc); 166 167 irq = pcic_intr_find(sc, IST_EDGE); 168 169 /* Map and establish the interrupt. */ 170 if (irq) { 171 sc->ih = pcic_pci_machdep_pcic_intr_establish(sc, pcic_intr); 172 if (sc->ih == NULL) { 173 printf("%s: couldn't map interrupt\n", 174 sc->dev.dv_xname); 175 bus_space_unmap(memt, memh, 0x10000); 176 bus_space_unmap(sc->iot, sc->ioh, size); 177 return; 178 } 179 } 180 sc->irq = irq; 181 182 if (irq) { 183 printf("%s: irq %d, ", sc->dev.dv_xname, irq); 184 185 /* Set up the pcic to interrupt on card detect. */ 186 for (i = 0; i < PCIC_NSLOTS; i++) { 187 h = &sc->handle[i]; 188 if (h->flags & PCIC_FLAG_SOCKETP) { 189 pcic_write(h, PCIC_CSC_INTR, 190 (sc->irq << PCIC_CSC_INTR_IRQ_SHIFT) | 191 PCIC_CSC_INTR_CD_ENABLE); 192 } 193 } 194 } else 195 printf("%s: no irq, ", sc->dev.dv_xname); 196 197 printf("polling enabled\n"); 198 if (sc->poll_established == 0) { 199 timeout_set(&sc->poll_timeout, pcic_poll_intr, sc); 200 timeout_add_msec(&sc->poll_timeout, 500); 201 sc->poll_established = 1; 202 } 203 } 204