2 * Copyright (c) 2002-2004 M. Warner Losh.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
28 * Driver for ISA to PCMCIA bridges compliant with the Intel ExCA
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
35 #include <sys/param.h>
36 #include <sys/systm.h>
38 #include <sys/condvar.h>
39 #include <sys/errno.h>
40 #include <sys/kernel.h>
42 #include <sys/malloc.h>
43 #include <sys/module.h>
44 #include <sys/mutex.h>
45 #include <sys/sysctl.h>
46 #include <sys/kthread.h>
48 #include <machine/bus.h>
50 #include <machine/resource.h>
52 #include <isa/isavar.h>
54 #include <dev/pccard/pccardreg.h>
55 #include <dev/pccard/pccardvar.h>
57 #include <dev/exca/excareg.h>
58 #include <dev/exca/excavar.h>
60 #include <dev/pccbb/pccbbreg.h>
61 #include <dev/pccbb/pccbbvar.h>
66 /*****************************************************************************
67 * Configurable parameters.
68 *****************************************************************************/
71 SYSCTL_NODE(_hw, OID_AUTO, pcic, CTLFLAG_RD, 0, "PCIC parameters");
73 static int isa_intr_mask = EXCA_INT_MASK_ALLOWED;
74 TUNABLE_INT("hw.cbb.intr_mask", &isa_intr_mask);
75 SYSCTL_INT(_hw_pcic, OID_AUTO, intr_mask, CTLFLAG_RD, &isa_intr_mask, 0,
76 "Mask of allowable interrupts for this laptop. The default is generally\n\
77 correct, but some laptops do not route all the IRQ pins to the bridge to\n\
78 save wires. Sometimes you need a more restrictive mask because some of the\n\
79 hardware in your laptop may not have a driver so its IRQ might not be\n\
83 * CL-PD6722's VSENSE method
84 * 0: NO VSENSE (assume a 5.0V card always)
85 * 1: 6710's method (default)
88 int pcic_pd6722_vsense = 1;
89 TUNABLE_INT("hw.pcic.pd6722_vsense", &pcic_pd6722_vsense);
90 SYSCTL_INT(_hw_pcic, OID_AUTO, pd6722_vsense, CTLFLAG_RDTUN,
91 &pcic_pd6722_vsense, 1,
92 "Select CL-PD6722's VSENSE method. VSENSE is used to determine the\n\
93 volatage of inserted cards. The CL-PD6722 has two methods to determine the\n\
94 voltage of the card. 0 means assume a 5.0V card and do not check. 1 means\n\
95 use the same method that the CL-PD6710 uses (default). 2 means use the\n\
96 same method as the CL-PD6729. 2 is documented in the datasheet as being\n\
97 the correct way, but 1 seems to give better results on more laptops.");
99 /*****************************************************************************
100 * End of configurable parameters.
101 *****************************************************************************/
103 #define DPRINTF(x) do { if (cbb_debug) printf x; } while (0)
104 #define DEVPRINTF(x) do { if (cbb_debug) device_printf x; } while (0)
106 /* XXX Not sure that PNP0E03 should be claimed, except maybe on pc98 */
107 static struct isa_pnp_id pcic_ids[] = {
108 {EXCA_PNP_ACTIONTEC, NULL}, /* AEI0218 */
109 {EXCA_PNP_IBM3765, NULL}, /* IBM3765 */
110 {EXCA_PNP_82365, NULL}, /* PNP0E00 */
111 {EXCA_PNP_CL_PD6720, NULL}, /* PNP0E01 */
112 {EXCA_PNP_VLSI_82C146, NULL}, /* PNP0E02 */
113 {EXCA_PNP_82365_CARDBUS, NULL}, /* PNP0E03 */
114 {EXCA_PNP_SCM_SWAPBOX, NULL}, /* SCM0469 */
115 {EXCA_NEC_PC9801_102, NULL}, /* NEC8091 */
116 {EXCA_NEC_PC9821RA_E01, NULL}, /* NEC8121 */
120 /************************************************************************/
122 /************************************************************************/
125 cbb_isa_activate(device_t dev)
127 struct cbb_softc *sc = device_get_softc(dev);
128 struct resource *res;
132 /* A little bogus, but go ahead and get the irq for CSC events */
134 res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
137 * No IRQ specified, find one. This can be due to the PnP
138 * data not specifying any IRQ, or the default kernel not
141 for (i = 0; i < 16 && res == NULL; i++) {
142 if (((1 << i) & isa_intr_mask) == 0)
144 res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, i, i,
152 res = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
154 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq_res);
156 device_printf(dev, "Cannot allocate I/O\n");
159 sc->bst = rman_get_bustag(res);
160 sc->bsh = rman_get_bushandle(res);
166 cbb_isa_deactivate(device_t dev)
168 struct cbb_softc *sc = device_get_softc(dev);
171 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq_res);
174 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->base_res);
179 cbb_isa_probe(device_t dev)
182 struct cbb_softc *sc = device_get_softc(dev);
184 /* Check isapnp ids */
185 error = ISA_PNP_PROBE(device_get_parent(dev), dev, pcic_ids);
186 if (error != 0 && error != ENOENT)
189 error = cbb_isa_activate(dev);
193 /* Check to make sure that we have actual hardware */
194 error = exca_probe_slots(dev, &sc->exca[0], sc->bst, sc->bsh);
195 cbb_isa_deactivate(dev);
200 cbb_isa_attach(device_t dev)
205 static device_method_t cbb_methods[] = {
206 /* Device interface */
207 DEVMETHOD(device_probe, cbb_isa_probe),
208 DEVMETHOD(device_attach, cbb_isa_attach),
209 DEVMETHOD(device_detach, cbb_detach),
210 DEVMETHOD(device_suspend, cbb_suspend),
211 DEVMETHOD(device_resume, cbb_resume),
214 DEVMETHOD(bus_print_child, bus_generic_print_child),
215 DEVMETHOD(bus_read_ivar, cbb_read_ivar),
216 DEVMETHOD(bus_write_ivar, cbb_write_ivar),
217 DEVMETHOD(bus_alloc_resource, cbb_alloc_resource),
218 DEVMETHOD(bus_release_resource, cbb_release_resource),
219 DEVMETHOD(bus_activate_resource, cbb_activate_resource),
220 DEVMETHOD(bus_deactivate_resource, cbb_deactivate_resource),
221 DEVMETHOD(bus_driver_added, cbb_driver_added),
222 DEVMETHOD(bus_child_detached, cbb_child_detached),
223 DEVMETHOD(bus_setup_intr, cbb_setup_intr),
224 DEVMETHOD(bus_teardown_intr, cbb_teardown_intr),
225 DEVMETHOD(bus_child_present, cbb_child_present),
227 /* 16-bit card interface */
228 DEVMETHOD(card_set_res_flags, cbb_pcic_set_res_flags),
229 DEVMETHOD(card_set_memory_offset, cbb_pcic_set_memory_offset),
231 /* power interface */
232 DEVMETHOD(power_enable_socket, cbb_power_enable_socket),
233 DEVMETHOD(power_disable_socket, cbb_power_disable_socket),
238 static driver_t cbb_isa_driver = {
241 sizeof(struct cbb_softc)
244 DRIVER_MODULE(cbb, isa, cbb_isa_driver, cbb_devclass, 0, 0);
245 MODULE_DEPEND(cbb, exca, 1, 1, 1);