Annotation of sys/dev/pci/cy_pci.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: cy_pci.c,v 1.13 2004/06/13 17:30:27 pvalchev Exp $ */
2: /*
3: * Copyright (c) 1996 Timo Rossi.
4: * 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. Neither the name of the author nor the names of contributors
15: * may be used to endorse or promote products derived from this software
16: * without specific prior written permission.
17: *
18: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28: * SUCH DAMAGE.
29: */
30:
31: /*
32: * cy_pci.c
33: *
34: * Driver for Cyclades Cyclom-8/16/32 multiport serial cards
35: * (currently not tested with Cyclom-32 cards)
36: *
37: * Timo Rossi, 1996
38: */
39:
40: #include <sys/param.h>
41: #include <sys/systm.h>
42: #include <sys/device.h>
43:
44: #include <machine/bus.h>
45:
46: #include <dev/pci/pcivar.h>
47: #include <dev/pci/pcireg.h>
48: #include <dev/pci/pcidevs.h>
49:
50: #include <dev/ic/cd1400reg.h>
51: #include <dev/ic/cyreg.h>
52:
53: int cy_pci_match(struct device *, void *, void *);
54: void cy_pci_attach(struct device *, struct device *, void *);
55:
56: struct cy_pci_softc {
57: struct cy_softc sc_cy; /* real softc */
58:
59: bus_space_tag_t sc_iot; /* PLX i/o tag */
60: bus_space_handle_t sc_ioh; /* PLX i/o handle */
61: };
62:
63: struct cfattach cy_pci_ca = {
64: sizeof(struct cy_pci_softc), cy_pci_match, cy_pci_attach
65: };
66:
67: #define CY_PLX_9050_ICS_IENABLE 0x040
68: #define CY_PLX_9050_ICS_LOCAL_IENABLE 0x001
69: #define CY_PLX_9050_ICS_LOCAL_IPOLARITY 0x002
70: #define CY_PLX_9060_ICS_IENABLE 0x100
71: #define CY_PLX_9060_ICS_LOCAL_IENABLE 0x800
72:
73: const struct pci_matchid cy_pci_devices[] = {
74: { PCI_VENDOR_CYCLADES, PCI_PRODUCT_CYCLADES_CYCLOMY_1 },
75: { PCI_VENDOR_CYCLADES, PCI_PRODUCT_CYCLADES_CYCLOMY_2 },
76: { PCI_VENDOR_CYCLADES, PCI_PRODUCT_CYCLADES_CYCLOM4Y_1 },
77: { PCI_VENDOR_CYCLADES, PCI_PRODUCT_CYCLADES_CYCLOM4Y_2 },
78: { PCI_VENDOR_CYCLADES, PCI_PRODUCT_CYCLADES_CYCLOM8Y_1 },
79: { PCI_VENDOR_CYCLADES, PCI_PRODUCT_CYCLADES_CYCLOM8Y_2 },
80: };
81:
82: int
83: cy_pci_match(parent, match, aux)
84: struct device *parent;
85: void *match, *aux;
86: {
87: return (pci_matchbyid((struct pci_attach_args *)aux, cy_pci_devices,
88: sizeof(cy_pci_devices)/sizeof(cy_pci_devices[0])));
89: }
90:
91: void
92: cy_pci_attach(parent, self, aux)
93: struct device *parent, *self;
94: void *aux;
95: {
96: struct cy_pci_softc *psc = (struct cy_pci_softc *)self;
97: struct cy_softc *sc = (struct cy_softc *)self;
98: struct pci_attach_args *pa = aux;
99: const char *intrstr = NULL;
100: pci_intr_handle_t ih;
101: pcireg_t memtype;
102: int plx_ver;
103:
104: sc->sc_bustype = CY_BUSTYPE_PCI;
105:
106: switch (PCI_PRODUCT(pa->pa_id)) {
107: case PCI_PRODUCT_CYCLADES_CYCLOMY_1:
108: case PCI_PRODUCT_CYCLADES_CYCLOM4Y_1:
109: case PCI_PRODUCT_CYCLADES_CYCLOM8Y_1:
110: memtype = PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT_1M;
111: break;
112: case PCI_PRODUCT_CYCLADES_CYCLOMY_2:
113: case PCI_PRODUCT_CYCLADES_CYCLOM4Y_2:
114: case PCI_PRODUCT_CYCLADES_CYCLOM8Y_2:
115: memtype = PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT;
116: break;
117: }
118:
119: if (pci_mapreg_map(pa, 0x14, PCI_MAPREG_TYPE_IO, 0,
120: &psc->sc_iot, &psc->sc_ioh, NULL, NULL, 0) != 0) {
121: printf(": unable to map PLX registers\n");
122: return;
123: }
124:
125: if (pci_mapreg_map(pa, 0x18, memtype, 0, &sc->sc_memt,
126: &sc->sc_memh, NULL, NULL, 0) != 0) {
127: printf(": couldn't map device registers\n");
128: return;
129: }
130:
131: if ((sc->sc_nr_cd1400s = cy_probe_common(sc->sc_memt, sc->sc_memh,
132: CY_BUSTYPE_PCI)) == 0) {
133: printf(": PCI Cyclom card with no CD1400s\n");
134: return;
135: }
136:
137: if (pci_intr_map(pa, &ih) != 0) {
138: printf(": couldn't map interrupt\n");
139: return;
140: }
141:
142: intrstr = pci_intr_string(pa->pa_pc, ih);
143: sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_TTY, cy_intr,
144: sc, sc->sc_dev.dv_xname);
145: if (sc->sc_ih == NULL) {
146: printf(": couldn't establish interrupt");
147: if (intrstr != NULL)
148: printf(" at %s", intrstr);
149: printf("\n");
150: return;
151: }
152: printf(": %s", intrstr);
153:
154: cy_attach(parent, self);
155:
156: /* Get PLX version */
157: plx_ver = bus_space_read_1(sc->sc_memt, sc->sc_memh, CY_PLX_VER) & 0x0f;
158:
159: /* Enable PCI card interrupts */
160: switch (plx_ver) {
161: case CY_PLX_9050:
162: bus_space_write_2(psc->sc_iot, psc->sc_ioh, CY_PCI_INTENA_9050,
163: CY_PLX_9050_ICS_IENABLE | CY_PLX_9050_ICS_LOCAL_IENABLE |
164: CY_PLX_9050_ICS_LOCAL_IPOLARITY);
165: break;
166:
167: case CY_PLX_9060:
168: case CY_PLX_9080:
169: default:
170: bus_space_write_2(psc->sc_iot, psc->sc_ioh, CY_PCI_INTENA,
171: bus_space_read_2(psc->sc_iot, psc->sc_ioh,
172: CY_PCI_INTENA) | CY_PLX_9060_ICS_IENABLE |
173: CY_PLX_9060_ICS_LOCAL_IENABLE);
174: }
175: }
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