1 /* $NetBSD: i82365_pci.c,v 1.22 2006/08/30 15:14:11 christos 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 1.22 2006/08/30 15:14:11 christos 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(struct device *, struct cfdata *, void *); 61 void pcic_pci_attach(struct device *, struct device *, void *); 62 63 CFATTACH_DECL(pcic_pci, sizeof(struct pcic_pci_softc), 64 pcic_pci_match, pcic_pci_attach, NULL, NULL); 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 81 pcic_chip_socket_enable, 82 pcic_chip_socket_disable, 83 pcic_chip_socket_settype, 84 85 NULL, /* card_detect */ 86 }; 87 88 static void pcic_pci_callback(struct device *); 89 90 int 91 pcic_pci_match(parent, match, aux) 92 struct device *parent; 93 struct cfdata *match; 94 void *aux; 95 { 96 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 97 98 switch (PCI_VENDOR(pa->pa_id)) { 99 case PCI_VENDOR_CIRRUS: 100 switch(PCI_PRODUCT(pa->pa_id)) { 101 case PCI_PRODUCT_CIRRUS_CL_PD6729: 102 break; 103 default: 104 return (0); 105 } 106 break; 107 default: 108 return (0); 109 } 110 return (1); 111 } 112 113 void pcic_isa_config_interrupts(struct device *); 114 115 void 116 pcic_pci_attach(parent, self, aux) 117 struct device *parent, *self; 118 void *aux; 119 { 120 struct pcic_softc *sc = (void *) self; 121 struct pcic_pci_softc *psc = (void *) self; 122 struct pci_attach_args *pa = aux; 123 pci_chipset_tag_t pc = pa->pa_pc; 124 bus_space_tag_t memt = pa->pa_memt; 125 bus_space_handle_t memh; 126 const char *model; 127 128 aprint_naive(": PCMCIA controller\n"); 129 130 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, 131 &sc->iot, &sc->ioh, NULL, NULL)) { 132 aprint_error(": can't map i/o space\n"); 133 return; 134 } 135 136 /* 137 * XXX need some memory for mapping pcmcia cards into. Ideally, this 138 * would be completely dynamic. Practically this doesn't work, 139 * because the extent mapper doesn't know about all the devices all 140 * the time. With ISA we could finesse the issue by specifying the 141 * memory region in the config line. We can't do that here, so we 142 * cheat for now. Jason Thorpe, you are my Savior, come up with a fix 143 * :-) 144 */ 145 146 /* Map mem space. */ 147 if (bus_space_map(memt, 0xd0000, 0x4000, 0, &memh)) 148 panic("pcic_pci_attach: can't map mem space"); 149 150 sc->membase = 0xd0000; 151 sc->subregionmask = (1 << (0x4000 / PCIC_MEM_PAGESIZE)) - 1; 152 153 /* same deal for io allocation */ 154 155 sc->iobase = 0x400; 156 sc->iosize = 0xbff; 157 158 /* end XXX */ 159 160 sc->pct = (pcmcia_chipset_tag_t) & pcic_pci_functions; 161 162 sc->memt = memt; 163 sc->memh = memh; 164 165 switch (PCI_PRODUCT(pa->pa_id)) { 166 case PCI_PRODUCT_CIRRUS_CL_PD6729: 167 model = "Cirrus Logic PD6729 PCMCIA controller"; 168 break; 169 default: 170 model = "Model unknown"; 171 break; 172 } 173 174 aprint_normal(": %s\n", model); 175 176 /* Enable the card. */ 177 pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 178 pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) | 179 PCI_COMMAND_MASTER_ENABLE); 180 181 pcic_attach(sc); 182 183 /* 184 * Check to see if we're using PCI or ISA interrupts. I don't 185 * know of any i386 systems that use the 6729 in PCI interrupt 186 * mode, but maybe when the PCMCIA code runs on other platforms 187 * we'll need to fix this. 188 */ 189 pcic_write(&sc->handle[0], PCIC_CIRRUS_EXTENDED_INDEX, 190 PCIC_CIRRUS_EXT_CONTROL_1); 191 if ((pcic_read(&sc->handle[0], PCIC_CIRRUS_EXTENDED_DATA) & 192 PCIC_CIRRUS_EXT_CONTROL_1_PCI_INTR_MASK)) { 193 aprint_error("%s: PCI interrupts not supported\n", 194 sc->dev.dv_xname); 195 return; 196 } 197 198 psc->intr_est = pcic_pci_machdep_intr_est(pc); 199 sc->irq = -1; 200 201 #if 0 202 /* Map and establish the interrupt. */ 203 sc->ih = pcic_pci_machdep_pcic_intr_establish(sc, pcic_intr); 204 if (sc->ih == NULL) { 205 aprint_error("%s: couldn't map interrupt\n", sc->dev.dv_xname); 206 return; 207 } 208 #endif 209 210 /* 211 * Defer configuration of children until ISA has had its chance 212 * to use up whatever IO space and IRQs it wants. XXX This will 213 * only work if ISA is attached to a pcib, AND the PCI probe finds 214 * and defers the ISA attachment before this one. 215 */ 216 config_defer(self, pcic_pci_callback); 217 config_interrupts(self, pcic_isa_config_interrupts); 218 } 219 220 static void 221 pcic_pci_callback(self) 222 struct device *self; 223 { 224 struct pcic_softc *sc = (void *) self; 225 226 pcic_attach_sockets(sc); 227 } 228