Annotation of sys/dev/cardbus/puc_cardbus.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: puc_cardbus.c,v 1.2 2006/10/12 16:35:52 grange Exp $ */
2:
3: /*
4: * Copyright (c) 2006 Michael Shalayeff
5: * All rights reserved.
6: *
7: * Permission to use, copy, modify, and distribute this software for any
8: * purpose with or without fee is hereby granted, provided that the above
9: * copyright notice and this permission notice appear in all copies.
10: *
11: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15: * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
16: * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
17: * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18: */
19:
20: #include <sys/param.h>
21: #include <sys/systm.h>
22: #include <sys/device.h>
23: #include <sys/tty.h>
24:
25: #include <machine/bus.h>
26: #include <dev/ic/comvar.h>
27:
28: #include <dev/pci/pcireg.h>
29: #include <dev/pci/pcivar.h>
30: #include <dev/pci/pcidevs.h>
31: #include <dev/cardbus/cardbusvar.h>
32:
33: #include <dev/pci/pucvar.h>
34:
35: struct puc_cardbus_softc {
36: struct puc_softc sc_psc;
37:
38: struct cardbus_devfunc *ct;
39: int intrline;
40: };
41:
42: int puc_cardbus_match(struct device *, void *, void *);
43: void puc_cardbus_attach(struct device *, struct device *, void *);
44: int puc_cardbus_detach(struct device *, int);
45:
46: const char *puc_cardbus_intr_string(struct puc_attach_args *);
47: void *puc_cardbus_intr_establish(struct puc_attach_args *, int,
48: int (*)(void *), void *, char *);
49:
50: struct cfattach puc_cardbus_ca = {
51: sizeof(struct puc_cardbus_softc), puc_cardbus_match,
52: puc_cardbus_attach, puc_cardbus_detach
53: };
54:
55: int
56: puc_cardbus_match(struct device *parent, void *match, void *aux)
57: {
58: struct cardbus_attach_args *ca = aux;
59: struct cardbus_devfunc *ct = ca->ca_ct;
60: cardbus_chipset_tag_t cc = ct->ct_cc;
61: cardbus_function_tag_t cf = ct->ct_cf;
62: cardbusreg_t bhlc, reg;
63:
64: bhlc = cardbus_conf_read(cc, cf, ca->ca_tag, CARDBUS_BHLC_REG);
65: if (PCI_HDRTYPE_TYPE(bhlc) != 0)
66: return(0);
67:
68: /* this one is some sort of a bridge and not a puc */
69: if (PCI_VENDOR(ca->ca_id) == PCI_VENDOR_OXFORD2 &&
70: PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_OXFORD2_EXSYS_EX41098)
71: return (0);
72:
73: reg = cardbus_conf_read(cc, cf, ca->ca_tag, PCI_SUBSYS_ID_REG);
74: if (puc_find_description(PCI_VENDOR(ca->ca_id),
75: PCI_PRODUCT(ca->ca_id), PCI_VENDOR(reg), PCI_PRODUCT(reg)))
76: return (10);
77:
78: return (0);
79: }
80:
81: void
82: puc_cardbus_attach(struct device *parent, struct device *self, void *aux)
83: {
84: struct puc_cardbus_softc *csc = (struct puc_cardbus_softc *)self;
85: struct puc_softc *sc = &csc->sc_psc;
86: struct cardbus_attach_args *ca = aux;
87: struct cardbus_devfunc *ct = ca->ca_ct;
88: cardbus_chipset_tag_t cc = ct->ct_cc;
89: cardbus_function_tag_t cf = ct->ct_cf;
90: struct puc_attach_args paa;
91: cardbusreg_t reg;
92: int i;
93:
94: Cardbus_function_enable(ct);
95:
96: csc->ct = ct;
97:
98: reg = cardbus_conf_read(cc, cf, ca->ca_tag, PCI_SUBSYS_ID_REG);
99: sc->sc_desc = puc_find_description(PCI_VENDOR(ca->ca_id),
100: PCI_PRODUCT(ca->ca_id), PCI_VENDOR(reg), PCI_PRODUCT(reg));
101:
102: puc_print_ports(sc->sc_desc);
103:
104: /* the fifth one is some memory we dunno */
105: for (i = 0; i < PUC_NBARS; i++) {
106: cardbusreg_t type;
107: int bar;
108:
109: sc->sc_bar_mappings[i].mapped = 0;
110: bar = PCI_MAPREG_START + 4 * i;
111: if (!cardbus_mapreg_probe(cc, cf, ca->ca_tag, bar, &type))
112: continue;
113:
114: if (!(sc->sc_bar_mappings[i].mapped = !Cardbus_mapreg_map(ct,
115: bar, type, 0,
116: &sc->sc_bar_mappings[i].t, &sc->sc_bar_mappings[i].h,
117: &sc->sc_bar_mappings[i].a, &sc->sc_bar_mappings[i].s)))
118: printf("%s: couldn't map BAR at offset 0x%lx\n",
119: sc->sc_dev.dv_xname, (long)bar);
120: sc->sc_bar_mappings[i].type = type;
121: }
122:
123: csc->intrline = ca->ca_intrline;
124:
125: if (cardbus_get_capability(cc, cf, ca->ca_tag, PCI_CAP_PWRMGMT, ®,
126: 0)) {
127: reg = cardbus_conf_read(cc, cf, ca->ca_tag, reg + 4) & 3;
128: if (reg) {
129: printf("%s: awakening from state D%d\n",
130: sc->sc_dev.dv_xname, reg);
131: cardbus_conf_write(cc, cf, ca->ca_tag, reg + 4, 0);
132: }
133: }
134:
135: (*cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE);
136: (*cf->cardbus_ctrl)(cc, CARDBUS_IO_ENABLE);
137: (*cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
138:
139: paa.puc = sc;
140: paa.hwtype = COM_UART_OX16C950; /* XXX */
141: paa.intr_string = &puc_cardbus_intr_string;
142: paa.intr_establish = &puc_cardbus_intr_establish;
143: puc_common_attach(sc, &paa);
144: }
145:
146: const char *
147: puc_cardbus_intr_string(struct puc_attach_args *paa)
148: {
149: struct puc_cardbus_softc *sc = paa->puc;
150: static char str[16];
151:
152: snprintf(str, sizeof str, "irq %d", sc->intrline);
153: return (str);
154: }
155:
156: void *
157: puc_cardbus_intr_establish(struct puc_attach_args *paa, int type,
158: int (*func)(void *), void *arg, char *name)
159: {
160: struct puc_cardbus_softc *sc = paa->puc;
161: struct cardbus_devfunc *ct = sc->ct;
162:
163: return (cardbus_intr_establish(ct->ct_cc, ct->ct_cf, sc->intrline,
164: type, func, arg, name));
165: }
166:
167: int
168: puc_cardbus_detach(struct device *self, int flags)
169: {
170: struct puc_cardbus_softc *csc = (struct puc_cardbus_softc *)self;
171: struct puc_softc *sc = &csc->sc_psc;
172: struct cardbus_devfunc *ct = csc->ct;
173: int i, rv;
174:
175: for (i = PUC_MAX_PORTS; i--; )
176: if (sc->sc_ports[i].dev)
177: if ((rv = config_detach(sc->sc_ports[i].dev, flags)))
178: return (rv);
179:
180: for (i = PUC_NBARS; i--; )
181: if (sc->sc_bar_mappings[i].mapped)
182: Cardbus_mapreg_unmap(ct, sc->sc_bar_mappings[i].type,
183: sc->sc_bar_mappings[i].t, sc->sc_bar_mappings[i].h,
184: sc->sc_bar_mappings[i].s);
185:
186: return (0);
187: }
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