1 /* $OpenBSD: i82365_pci.c,v 1.13 2021/03/05 12:40:13 jsg 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/kernel.h> 40 #include <sys/device.h> 41 42 #include <dev/ic/i82365reg.h> 43 #include <dev/ic/i82365var.h> 44 45 #include <dev/pci/pcivar.h> 46 #include <dev/pci/pcireg.h> 47 #include <dev/pci/pcidevs.h> 48 #include <dev/pci/i82365_pcivar.h> 49 50 #include <dev/isa/isavar.h> 51 #include <dev/isa/i82365_isavar.h> 52 53 /* 54 * PCI constants. 55 * XXX These should be in a common file! 56 */ 57 #define PCI_CBIO 0x10 /* Configuration Base IO Address */ 58 59 int pcic_pci_match(struct device *, void *, void *); 60 void pcic_pci_attach(struct device *, struct device *, void *); 61 62 struct cfattach pcic_pci_ca = { 63 sizeof(struct pcic_pci_softc), pcic_pci_match, pcic_pci_attach 64 }; 65 66 static struct pcmcia_chip_functions pcic_pci_functions = { 67 pcic_chip_mem_alloc, 68 pcic_chip_mem_free, 69 pcic_chip_mem_map, 70 pcic_chip_mem_unmap, 71 72 pcic_chip_io_alloc, 73 pcic_chip_io_free, 74 pcic_chip_io_map, 75 pcic_chip_io_unmap, 76 77 /* XXX */ 78 pcic_isa_chip_intr_establish, 79 pcic_isa_chip_intr_disestablish, 80 pcic_isa_chip_intr_string, 81 82 pcic_chip_socket_enable, 83 pcic_chip_socket_disable, 84 }; 85 86 int 87 pcic_pci_match(struct device *parent, void *match, void *aux) 88 { 89 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 90 91 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_CIRRUS && 92 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CIRRUS_CL_PD6729) 93 return (1); 94 return (0); 95 } 96 97 void pcic_isa_config_interrupts(struct device *); 98 99 void 100 pcic_pci_attach(struct device *parent, struct device *self, void *aux) 101 { 102 struct pcic_softc *sc = (void *) self; 103 struct pcic_pci_softc *psc = (void *) self; 104 struct pcic_handle *h; 105 struct pci_attach_args *pa = aux; 106 pci_chipset_tag_t pc = pa->pa_pc; 107 bus_space_tag_t memt = pa->pa_memt; 108 bus_space_handle_t memh; 109 bus_size_t size; 110 int irq, i; 111 112 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, 113 &sc->iot, &sc->ioh, NULL, &size, 0)) { 114 printf(": can't map i/o space\n"); 115 return; 116 } 117 118 /* 119 * XXX need some memory for mapping pcmcia cards into. Ideally, this 120 * would be completely dynamic. Practically this doesn't work, 121 * because the extent mapper doesn't know about all the devices all 122 * the time. With ISA we could finesse the issue by specifying the 123 * memory region in the config line. We can't do that here, so we 124 * cheat for now. Jason Thorpe, you are my Savior, come up with a fix 125 * :-) 126 */ 127 128 /* Map mem space. */ 129 if (bus_space_map(memt, 0xd0000, 0x10000, 0, &memh)) { 130 printf(": can't map mem space"); 131 bus_space_unmap(sc->iot, sc->ioh, size); 132 return; 133 } 134 135 sc->membase = 0xd0000; 136 sc->subregionmask = (1 << (0x10000 / PCIC_MEM_PAGESIZE)) - 1; 137 138 /* same deal for io allocation */ 139 140 sc->iobase = 0x400; 141 sc->iosize = 0xbff; 142 143 /* end XXX */ 144 145 sc->pct = (pcmcia_chipset_tag_t) & pcic_pci_functions; 146 147 sc->memt = memt; 148 sc->memh = memh; 149 150 printf("\n"); 151 pcic_attach(sc); 152 pcic_attach_sockets(sc); 153 154 /* 155 * Check to see if we're using PCI or ISA interrupts. I don't 156 * know of any i386 systems that use the 6729 in PCI interrupt 157 * mode, but maybe when the PCMCIA code runs on other platforms 158 * we'll need to fix this. 159 */ 160 pcic_write(&sc->handle[0], PCIC_CIRRUS_EXTENDED_INDEX, 161 PCIC_CIRRUS_EXT_CONTROL_1); 162 if ((pcic_read(&sc->handle[0], PCIC_CIRRUS_EXTENDED_DATA) & 163 PCIC_CIRRUS_EXT_CONTROL_1_PCI_INTR_MASK)) { 164 printf("%s: PCI interrupts not supported\n", 165 sc->dev.dv_xname); 166 return; 167 } 168 169 psc->intr_est = pcic_pci_machdep_intr_est(pc); 170 171 irq = pcic_intr_find(sc, IST_EDGE); 172 173 /* Map and establish the interrupt. */ 174 if (irq) { 175 sc->ih = pcic_pci_machdep_pcic_intr_establish(sc, pcic_intr); 176 if (sc->ih == NULL) { 177 printf("%s: couldnt map interrupt\n", sc->dev.dv_xname); 178 bus_space_unmap(memt, memh, 0x10000); 179 bus_space_unmap(sc->iot, sc->ioh, size); 180 return; 181 } 182 } 183 sc->irq = irq; 184 185 if (irq) { 186 printf("%s: irq %d, ", sc->dev.dv_xname, irq); 187 188 /* Set up the pcic to interrupt on card detect. */ 189 for (i = 0; i < PCIC_NSLOTS; i++) { 190 h = &sc->handle[i]; 191 if (h->flags & PCIC_FLAG_SOCKETP) { 192 pcic_write(h, PCIC_CSC_INTR, 193 (sc->irq << PCIC_CSC_INTR_IRQ_SHIFT) | 194 PCIC_CSC_INTR_CD_ENABLE); 195 } 196 } 197 } else 198 printf("%s: no irq, ", sc->dev.dv_xname); 199 200 printf("polling enabled\n"); 201 if (sc->poll_established == 0) { 202 timeout_set(&sc->poll_timeout, pcic_poll_intr, sc); 203 timeout_add_msec(&sc->poll_timeout, 500); 204 sc->poll_established = 1; 205 } 206 } 207