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/pci/pcivar.h>
55 #include <dev/pci/pcib_private.h>
57 #include <dev/pccard/pccardreg.h>
58 #include <dev/pccard/pccardvar.h>
60 #include <dev/exca/excareg.h>
61 #include <dev/exca/excavar.h>
63 #include <dev/pccbb/pccbbreg.h>
64 #include <dev/pccbb/pccbbvar.h>
69 /*****************************************************************************
70 * Configurable parameters.
71 *****************************************************************************/
74 static SYSCTL_NODE(_hw, OID_AUTO, pcic, CTLFLAG_RD, 0, "PCIC parameters");
76 static int isa_intr_mask = EXCA_INT_MASK_ALLOWED;
77 TUNABLE_INT("hw.cbb.intr_mask", &isa_intr_mask);
78 SYSCTL_INT(_hw_pcic, OID_AUTO, intr_mask, CTLFLAG_RD, &isa_intr_mask, 0,
79 "Mask of allowable interrupts for this laptop. The default is generally\n\
80 correct, but some laptops do not route all the IRQ pins to the bridge to\n\
81 save wires. Sometimes you need a more restrictive mask because some of the\n\
82 hardware in your laptop may not have a driver so its IRQ might not be\n\
86 * CL-PD6722's VSENSE method
87 * 0: NO VSENSE (assume a 5.0V card always)
88 * 1: 6710's method (default)
91 int pcic_pd6722_vsense = 1;
92 TUNABLE_INT("hw.pcic.pd6722_vsense", &pcic_pd6722_vsense);
93 SYSCTL_INT(_hw_pcic, OID_AUTO, pd6722_vsense, CTLFLAG_RDTUN,
94 &pcic_pd6722_vsense, 1,
95 "Select CL-PD6722's VSENSE method. VSENSE is used to determine the\n\
96 volatage of inserted cards. The CL-PD6722 has two methods to determine the\n\
97 voltage of the card. 0 means assume a 5.0V card and do not check. 1 means\n\
98 use the same method that the CL-PD6710 uses (default). 2 means use the\n\
99 same method as the CL-PD6729. 2 is documented in the datasheet as being\n\
100 the correct way, but 1 seems to give better results on more laptops.");
102 /*****************************************************************************
103 * End of configurable parameters.
104 *****************************************************************************/
106 #define DPRINTF(x) do { if (cbb_debug) printf x; } while (0)
107 #define DEVPRINTF(x) do { if (cbb_debug) device_printf x; } while (0)
109 /* XXX Not sure that PNP0E03 should be claimed, except maybe on pc98 */
110 static struct isa_pnp_id pcic_ids[] = {
111 {EXCA_PNP_ACTIONTEC, NULL}, /* AEI0218 */
112 {EXCA_PNP_IBM3765, NULL}, /* IBM3765 */
113 {EXCA_PNP_82365, NULL}, /* PNP0E00 */
114 {EXCA_PNP_CL_PD6720, NULL}, /* PNP0E01 */
115 {EXCA_PNP_VLSI_82C146, NULL}, /* PNP0E02 */
116 {EXCA_PNP_82365_CARDBUS, NULL}, /* PNP0E03 */
117 {EXCA_PNP_SCM_SWAPBOX, NULL}, /* SCM0469 */
118 {EXCA_NEC_PC9801_102, NULL}, /* NEC8091 */
119 {EXCA_NEC_PC9821RA_E01, NULL}, /* NEC8121 */
123 /************************************************************************/
125 /************************************************************************/
128 cbb_isa_activate(device_t dev)
130 struct cbb_softc *sc = device_get_softc(dev);
131 struct resource *res;
135 /* A little bogus, but go ahead and get the irq for CSC events */
137 res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
140 * No IRQ specified, find one. This can be due to the PnP
141 * data not specifying any IRQ, or the default kernel not
144 for (i = 0; i < 16 && res == NULL; i++) {
145 if (((1 << i) & isa_intr_mask) == 0)
147 res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, i, i,
155 res = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
157 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq_res);
159 device_printf(dev, "Cannot allocate I/O\n");
162 sc->bst = rman_get_bustag(res);
163 sc->bsh = rman_get_bushandle(res);
169 cbb_isa_deactivate(device_t dev)
171 struct cbb_softc *sc = device_get_softc(dev);
174 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq_res);
177 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->base_res);
182 cbb_isa_probe(device_t dev)
185 struct cbb_softc *sc = device_get_softc(dev);
187 /* Check isapnp ids */
188 error = ISA_PNP_PROBE(device_get_parent(dev), dev, pcic_ids);
189 if (error != 0 && error != ENOENT)
192 error = cbb_isa_activate(dev);
196 /* Check to make sure that we have actual hardware */
197 error = exca_probe_slots(dev, &sc->exca[0], sc->bst, sc->bsh);
198 cbb_isa_deactivate(dev);
203 cbb_isa_attach(device_t dev)
208 static device_method_t cbb_methods[] = {
209 /* Device interface */
210 DEVMETHOD(device_probe, cbb_isa_probe),
211 DEVMETHOD(device_attach, cbb_isa_attach),
212 DEVMETHOD(device_detach, cbb_detach),
213 DEVMETHOD(device_suspend, cbb_suspend),
214 DEVMETHOD(device_resume, cbb_resume),
217 DEVMETHOD(bus_read_ivar, cbb_read_ivar),
218 DEVMETHOD(bus_write_ivar, cbb_write_ivar),
219 DEVMETHOD(bus_alloc_resource, cbb_alloc_resource),
220 DEVMETHOD(bus_release_resource, cbb_release_resource),
221 DEVMETHOD(bus_activate_resource, cbb_activate_resource),
222 DEVMETHOD(bus_deactivate_resource, cbb_deactivate_resource),
223 DEVMETHOD(bus_driver_added, cbb_driver_added),
224 DEVMETHOD(bus_child_detached, cbb_child_detached),
225 DEVMETHOD(bus_setup_intr, cbb_setup_intr),
226 DEVMETHOD(bus_teardown_intr, cbb_teardown_intr),
227 DEVMETHOD(bus_child_present, cbb_child_present),
229 /* 16-bit card interface */
230 DEVMETHOD(card_set_res_flags, cbb_pcic_set_res_flags),
231 DEVMETHOD(card_set_memory_offset, cbb_pcic_set_memory_offset),
233 /* power interface */
234 DEVMETHOD(power_enable_socket, cbb_power_enable_socket),
235 DEVMETHOD(power_disable_socket, cbb_power_disable_socket),
240 static driver_t cbb_isa_driver = {
243 sizeof(struct cbb_softc)
246 DRIVER_MODULE(cbb, isa, cbb_isa_driver, cbb_devclass, 0, 0);
247 MODULE_DEPEND(cbb, exca, 1, 1, 1);