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 * $DragonFly: src/sys/dev/pccard/pccbb/pccbb_isa.c,v 1.1 2007/07/05 12:08:54 sephe Exp $ 28 */ 29 30 /* 31 * Driver for ISA to PCMCIA bridges compliant with the Intel ExCA 32 * specification. 33 */ 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/proc.h> 38 #include <sys/errno.h> 39 #include <sys/kernel.h> 40 #include <sys/lock.h> 41 #include <sys/malloc.h> 42 #include <sys/module.h> 43 #include <sys/sysctl.h> 44 #include <sys/kthread.h> 45 #include <sys/bus.h> 46 #include <sys/rman.h> 47 48 #include <bus/isa/isavar.h> 49 50 #include <bus/pccard/pccardreg.h> 51 #include <bus/pccard/pccardvar.h> 52 53 #include <dev/pccard/exca/excareg.h> 54 #include <dev/pccard/exca/excavar.h> 55 56 #include <dev/pccard/pccbb/pccbbreg.h> 57 #include <dev/pccard/pccbb/pccbbvar.h> 58 59 #include "power_if.h" 60 #include "card_if.h" 61 62 /***************************************************************************** 63 * Configurable parameters. 64 *****************************************************************************/ 65 66 /* sysctl vars */ 67 SYSCTL_NODE(_hw, OID_AUTO, pcic, CTLFLAG_RD, 0, "PCIC parameters"); 68 69 static int isa_intr_mask = EXCA_INT_MASK_ALLOWED; 70 TUNABLE_INT("hw.cbb.intr_mask", &isa_intr_mask); 71 SYSCTL_INT(_hw_pcic, OID_AUTO, intr_mask, CTLFLAG_RD, &isa_intr_mask, 0, 72 "Mask of allowable interrupts for this laptop. The default is generally\n\ 73 correct, but some laptops do not route all the IRQ pins to the bridge to\n\ 74 save wires. Sometimes you need a more restrictive mask because some of the\n\ 75 hardware in your laptop may not have a driver so its IRQ might not be\n\ 76 allocated."); 77 78 /***************************************************************************** 79 * End of configurable parameters. 80 *****************************************************************************/ 81 82 #define DPRINTF(x) do { if (cbb_debug) kprintf x; } while (0) 83 #define DEVPRINTF(x) do { if (cbb_debug) device_printf x; } while (0) 84 85 static struct isa_pnp_id pcic_ids[] = { 86 {EXCA_PNP_ACTIONTEC, NULL}, /* AEI0218 */ 87 {EXCA_PNP_IBM3765, NULL}, /* IBM3765 */ 88 {EXCA_PNP_82365, NULL}, /* PNP0E00 */ 89 {EXCA_PNP_CL_PD6720, NULL}, /* PNP0E01 */ 90 {EXCA_PNP_VLSI_82C146, NULL}, /* PNP0E02 */ 91 {EXCA_PNP_82365_CARDBUS, NULL}, /* PNP0E03 */ 92 {EXCA_PNP_SCM_SWAPBOX, NULL}, /* SCM0469 */ 93 {0} 94 }; 95 96 /************************************************************************/ 97 /* Probe/Attach */ 98 /************************************************************************/ 99 100 #if 0 101 struct resource *res; 102 int rid; 103 int i; 104 105 /* A little bogus, but go ahead and get the irq for CSC events */ 106 rid = 0; 107 res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE); 108 if (res == NULL) { 109 /* 110 * No IRQ specified, find one. This can be due to the PnP 111 * data not specifying any IRQ, or the default kernel not 112 * assinging an IRQ. 113 */ 114 for (i = 0; i < 16; i++) { 115 if (((1 << i) & isa_intr_mask) == 0) 116 continue; 117 res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, i, i, 118 1, RF_ACTIVE); 119 if (res != NULL) 120 break; 121 } 122 if (res == NULL) 123 return (ENXIO); 124 bus_release_resource(dev, SYS_RES_IRQ, rid, res); 125 bus_set_resource(dev, SYS_RES_IRQ, 0, i, 1); 126 } else { 127 bus_release_resource(dev, SYS_RES_IRQ, rid, res); 128 } 129 if (res == NULL) { 130 device_printf(dev, "Cannot allocate mem\n"); 131 return (ENOMEM); 132 } 133 #endif 134 135 static int 136 cbb_isa_activate(device_t dev) 137 { 138 return (ENOMEM); 139 } 140 141 static void 142 cbb_isa_deactivate(device_t dev) 143 { 144 } 145 146 static int 147 cbb_isa_probe(device_t dev) 148 { 149 int error; 150 struct cbb_softc *sc = device_get_softc(dev); 151 152 /* Check isapnp ids */ 153 error = ISA_PNP_PROBE(device_get_parent(dev), dev, pcic_ids); 154 if (error != 0 && error != ENOENT) 155 return (error); 156 157 error = cbb_isa_activate(dev); 158 if (error != 0) 159 return (error); 160 161 /* Check to make sure that we have actual hardware */ 162 error = exca_probe_slots(dev, &sc->exca[0], sc->bst, sc->bsh); 163 cbb_isa_deactivate(dev); 164 return (error); 165 } 166 167 static int 168 cbb_isa_attach(device_t dev) 169 { 170 return (ENOMEM); 171 } 172 173 static device_method_t cbb_methods[] = { 174 /* Device interface */ 175 DEVMETHOD(device_probe, cbb_isa_probe), 176 DEVMETHOD(device_attach, cbb_isa_attach), 177 DEVMETHOD(device_detach, cbb_detach), 178 DEVMETHOD(device_shutdown, cbb_shutdown), 179 DEVMETHOD(device_suspend, cbb_suspend), 180 DEVMETHOD(device_resume, cbb_resume), 181 182 /* bus methods */ 183 DEVMETHOD(bus_print_child, bus_generic_print_child), 184 DEVMETHOD(bus_read_ivar, cbb_read_ivar), 185 DEVMETHOD(bus_write_ivar, cbb_write_ivar), 186 DEVMETHOD(bus_alloc_resource, cbb_alloc_resource), 187 DEVMETHOD(bus_release_resource, cbb_release_resource), 188 DEVMETHOD(bus_activate_resource, cbb_activate_resource), 189 DEVMETHOD(bus_deactivate_resource, cbb_deactivate_resource), 190 DEVMETHOD(bus_driver_added, cbb_driver_added), 191 DEVMETHOD(bus_child_detached, cbb_child_detached), 192 DEVMETHOD(bus_setup_intr, cbb_setup_intr), 193 DEVMETHOD(bus_teardown_intr, cbb_teardown_intr), 194 DEVMETHOD(bus_child_present, cbb_child_present), 195 196 /* 16-bit card interface */ 197 DEVMETHOD(card_set_res_flags, cbb_pcic_set_res_flags), 198 DEVMETHOD(card_set_memory_offset, cbb_pcic_set_memory_offset), 199 200 /* power interface */ 201 DEVMETHOD(power_enable_socket, cbb_power_enable_socket), 202 DEVMETHOD(power_disable_socket, cbb_power_disable_socket), 203 204 {0,0} 205 }; 206 207 static driver_t cbb_isa_driver = { 208 "cbb", 209 cbb_methods, 210 sizeof(struct cbb_softc) 211 }; 212 213 DRIVER_MODULE(cbb, isa, cbb_isa_driver, cbb_devclass, 0, 0); 214 MODULE_DEPEND(cbb, exca, 1, 1, 1); 215