1 /*- 2 * Copyright (c) 2002-2004 M. Warner Losh. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: src/sys/dev/pccbb/pccbb_isa.c,v 1.4 2005/01/11 05:33:18 imp Exp $ 27 */ 28 29 /* 30 * Driver for ISA to PCMCIA bridges compliant with the Intel ExCA 31 * specification. 32 */ 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/proc.h> 37 #include <sys/errno.h> 38 #include <sys/kernel.h> 39 #include <sys/lock.h> 40 #include <sys/malloc.h> 41 #include <sys/module.h> 42 #include <sys/sysctl.h> 43 #include <sys/kthread.h> 44 #include <sys/bus.h> 45 #include <sys/rman.h> 46 47 #include <bus/isa/isavar.h> 48 49 #include <bus/pccard/pccardreg.h> 50 #include <bus/pccard/pccardvar.h> 51 52 #include <dev/pccard/exca/excareg.h> 53 #include <dev/pccard/exca/excavar.h> 54 55 #include <dev/pccard/pccbb/pccbbreg.h> 56 #include <dev/pccard/pccbb/pccbbvar.h> 57 58 #include "power_if.h" 59 #include "card_if.h" 60 61 /***************************************************************************** 62 * Configurable parameters. 63 *****************************************************************************/ 64 65 /* sysctl vars */ 66 SYSCTL_NODE(_hw, OID_AUTO, pcic, CTLFLAG_RD, 0, "PCIC parameters"); 67 68 static int isa_intr_mask = EXCA_INT_MASK_ALLOWED; 69 TUNABLE_INT("hw.cbb.intr_mask", &isa_intr_mask); 70 SYSCTL_INT(_hw_pcic, OID_AUTO, intr_mask, CTLFLAG_RD, &isa_intr_mask, 0, 71 "Mask of allowable interrupts for this laptop. The default is generally\n\ 72 correct, but some laptops do not route all the IRQ pins to the bridge to\n\ 73 save wires. Sometimes you need a more restrictive mask because some of the\n\ 74 hardware in your laptop may not have a driver so its IRQ might not be\n\ 75 allocated."); 76 77 /***************************************************************************** 78 * End of configurable parameters. 79 *****************************************************************************/ 80 81 #define DPRINTF(x) do { if (cbb_debug) kprintf x; } while (0) 82 #define DEVPRINTF(x) do { if (cbb_debug) device_printf x; } while (0) 83 84 static struct isa_pnp_id pcic_ids[] = { 85 {EXCA_PNP_ACTIONTEC, NULL}, /* AEI0218 */ 86 {EXCA_PNP_IBM3765, NULL}, /* IBM3765 */ 87 {EXCA_PNP_82365, NULL}, /* PNP0E00 */ 88 {EXCA_PNP_CL_PD6720, NULL}, /* PNP0E01 */ 89 {EXCA_PNP_VLSI_82C146, NULL}, /* PNP0E02 */ 90 {EXCA_PNP_82365_CARDBUS, NULL}, /* PNP0E03 */ 91 {EXCA_PNP_SCM_SWAPBOX, NULL}, /* SCM0469 */ 92 {0} 93 }; 94 95 /************************************************************************/ 96 /* Probe/Attach */ 97 /************************************************************************/ 98 99 #if 0 100 struct resource *res; 101 int rid; 102 int i; 103 104 /* A little bogus, but go ahead and get the irq for CSC events */ 105 rid = 0; 106 res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE); 107 if (res == NULL) { 108 /* 109 * No IRQ specified, find one. This can be due to the PnP 110 * data not specifying any IRQ, or the default kernel not 111 * assinging an IRQ. 112 */ 113 for (i = 0; i < 16; i++) { 114 if (((1 << i) & isa_intr_mask) == 0) 115 continue; 116 res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, i, i, 117 1, RF_ACTIVE); 118 if (res != NULL) 119 break; 120 } 121 if (res == NULL) 122 return (ENXIO); 123 bus_release_resource(dev, SYS_RES_IRQ, rid, res); 124 bus_set_resource(dev, SYS_RES_IRQ, 0, i, 1); 125 } else { 126 bus_release_resource(dev, SYS_RES_IRQ, rid, res); 127 } 128 if (res == NULL) { 129 device_printf(dev, "Cannot allocate mem\n"); 130 return (ENOMEM); 131 } 132 #endif 133 134 static int 135 cbb_isa_activate(device_t dev) 136 { 137 return (ENOMEM); 138 } 139 140 static void 141 cbb_isa_deactivate(device_t dev) 142 { 143 } 144 145 static int 146 cbb_isa_probe(device_t dev) 147 { 148 int error; 149 struct cbb_softc *sc = device_get_softc(dev); 150 151 /* Check isapnp ids */ 152 error = ISA_PNP_PROBE(device_get_parent(dev), dev, pcic_ids); 153 if (error != 0 && error != ENOENT) 154 return (error); 155 156 error = cbb_isa_activate(dev); 157 if (error != 0) 158 return (error); 159 160 /* Check to make sure that we have actual hardware */ 161 error = exca_probe_slots(dev, &sc->exca[0], sc->bst, sc->bsh); 162 cbb_isa_deactivate(dev); 163 return (error); 164 } 165 166 static int 167 cbb_isa_attach(device_t dev) 168 { 169 return (ENOMEM); 170 } 171 172 static device_method_t cbb_methods[] = { 173 /* Device interface */ 174 DEVMETHOD(device_probe, cbb_isa_probe), 175 DEVMETHOD(device_attach, cbb_isa_attach), 176 DEVMETHOD(device_detach, cbb_detach), 177 DEVMETHOD(device_shutdown, cbb_shutdown), 178 DEVMETHOD(device_suspend, cbb_suspend), 179 DEVMETHOD(device_resume, cbb_resume), 180 181 /* bus methods */ 182 DEVMETHOD(bus_print_child, bus_generic_print_child), 183 DEVMETHOD(bus_read_ivar, cbb_read_ivar), 184 DEVMETHOD(bus_write_ivar, cbb_write_ivar), 185 DEVMETHOD(bus_alloc_resource, cbb_alloc_resource), 186 DEVMETHOD(bus_release_resource, cbb_release_resource), 187 DEVMETHOD(bus_activate_resource, cbb_activate_resource), 188 DEVMETHOD(bus_deactivate_resource, cbb_deactivate_resource), 189 DEVMETHOD(bus_driver_added, cbb_driver_added), 190 DEVMETHOD(bus_child_detached, cbb_child_detached), 191 DEVMETHOD(bus_setup_intr, cbb_setup_intr), 192 DEVMETHOD(bus_teardown_intr, cbb_teardown_intr), 193 DEVMETHOD(bus_child_present, cbb_child_present), 194 195 /* 16-bit card interface */ 196 DEVMETHOD(card_set_res_flags, cbb_pcic_set_res_flags), 197 DEVMETHOD(card_set_memory_offset, cbb_pcic_set_memory_offset), 198 199 /* power interface */ 200 DEVMETHOD(power_enable_socket, cbb_power_enable_socket), 201 DEVMETHOD(power_disable_socket, cbb_power_disable_socket), 202 203 DEVMETHOD_END 204 }; 205 206 static driver_t cbb_isa_driver = { 207 "cbb", 208 cbb_methods, 209 sizeof(struct cbb_softc) 210 }; 211 212 DRIVER_MODULE(cbb, isa, cbb_isa_driver, cbb_devclass, NULL, NULL); 213 MODULE_DEPEND(cbb, exca, 1, 1, 1); 214