Annotation of sys/arch/sparc/dev/stp_sbus.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: stp_sbus.c,v 1.6 2007/05/29 09:54:19 sobrado Exp $ */
2: /* $NetBSD: stp4020.c,v 1.23 2002/06/01 23:51:03 lukem Exp $ */
3:
4: /*-
5: * Copyright (c) 1998 The NetBSD Foundation, Inc.
6: * All rights reserved.
7: *
8: * This code is derived from software contributed to The NetBSD Foundation
9: * by Paul Kranenburg.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: * 3. All advertising materials mentioning features or use of this software
20: * must display the following acknowledgement:
21: * This product includes software developed by the NetBSD
22: * Foundation, Inc. and its contributors.
23: * 4. Neither the name of The NetBSD Foundation nor the names of its
24: * contributors may be used to endorse or promote products derived
25: * from this software without specific prior written permission.
26: *
27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37: * POSSIBILITY OF SUCH DAMAGE.
38: */
39:
40: /*
41: * STP4020: SBus/PCMCIA bridge supporting one Type-3 PCMCIA card, or up to
42: * two Type-1 and Type-2 PCMCIA cards..
43: */
44:
45: #include <sys/param.h>
46: #include <sys/systm.h>
47: #include <sys/errno.h>
48: #include <sys/malloc.h>
49: #include <sys/extent.h>
50: #include <sys/proc.h>
51: #include <sys/kernel.h>
52: #include <sys/kthread.h>
53: #include <sys/device.h>
54:
55: #include <dev/pcmcia/pcmciareg.h>
56: #include <dev/pcmcia/pcmciavar.h>
57: #include <dev/pcmcia/pcmciachip.h>
58:
59: #include <machine/bus.h>
60: #include <sparc/dev/sbusvar.h>
61:
62: #include <dev/sbus/stp4020reg.h>
63: #include <dev/sbus/stp4020var.h>
64:
65: struct stp4020_sbus_softc {
66: struct stp4020_softc stp;
67: struct rom_reg sc_reg;
68: struct rom_reg sc_reg_le; /* rev. copy for pcmcia bus_space access */
69: struct intrhand sc_ih[2];
70: };
71:
72: int stpmatch(struct device *, void *, void *);
73: void stpattach(struct device *, struct device *, void *);
74:
75: struct cfattach stp_sbus_ca = {
76: sizeof(struct stp4020_sbus_softc), stpmatch, stpattach
77: };
78:
79: int
80: stpmatch(parent, match, aux)
81: struct device *parent;
82: void *match;
83: void *aux;
84: {
85: struct confargs *ca = aux;
86:
87: return (strcmp("SUNW,pcmcia", ca->ca_ra.ra_name) == 0);
88: }
89:
90: /*
91: * Attach all the sub-devices we can find
92: */
93: void
94: stpattach(parent, self, aux)
95: struct device *parent, *self;
96: void *aux;
97: {
98: struct confargs *ca = aux;
99: struct stp4020_sbus_softc *ssc = (void *)self;
100: struct stp4020_softc *sc = (void *)self;
101: int node;
102: int i;
103: bus_space_handle_t bh;
104:
105: node = ca->ca_ra.ra_node;
106:
107: /* Transfer bus tags */
108: ssc->sc_reg = ca->ca_ra.ra_reg[0];
109: ssc->sc_reg_le = ca->ca_ra.ra_reg[0];
110: SET_TAG_LITTLE_ENDIAN(&ssc->sc_reg_le);
111: sc->sc_bustag = &ssc->sc_reg;
112:
113: /* Set up per-socket static initialization */
114: sc->sc_socks[0].sc = sc->sc_socks[1].sc = sc;
115: sc->sc_socks[0].tag = sc->sc_socks[1].tag = sc->sc_bustag;
116:
117: if (ca->ca_ra.ra_nreg < 8) {
118: printf(": only %d register sets\n", ca->ca_ra.ra_nreg);
119: return;
120: }
121:
122: if (ca->ca_ra.ra_nintr != 2) {
123: printf(": expect 2 interrupt SBus levels; got %d\n",
124: ca->ca_ra.ra_nintr);
125: return;
126: }
127:
128: #define STP4020_BANK_PROM 0
129: #define STP4020_BANK_CTRL 4
130: for (i = 0; i < 8; i++) {
131:
132: /*
133: * STP4020 Register address map:
134: * bank 0: Forth PROM
135: * banks 1-3: socket 0, windows 0-2
136: * bank 4: control registers
137: * banks 5-7: socket 1, windows 0-2
138: */
139:
140: if (i == STP4020_BANK_PROM)
141: /* Skip the PROM */
142: continue;
143:
144: if (bus_space_map(&ca->ca_ra.ra_reg[i], 0,
145: ca->ca_ra.ra_reg[i].rr_len, 0, &bh) != 0) {
146: printf(": attach: cannot map registers\n");
147: return;
148: }
149:
150: if (i == STP4020_BANK_CTRL) {
151: /*
152: * Copy tag and handle to both socket structures
153: * for easy access in control/status IO functions.
154: */
155: sc->sc_socks[0].regs = sc->sc_socks[1].regs = bh;
156: } else if (i < STP4020_BANK_CTRL) {
157: /* banks 1-3 */
158: sc->sc_socks[0].windows[i-1].winaddr = bh;
159: sc->sc_socks[0].wintag = &ssc->sc_reg_le;
160: } else {
161: /* banks 5-7 */
162: sc->sc_socks[1].windows[i-5].winaddr = bh;
163: sc->sc_socks[1].wintag = &ssc->sc_reg_le;
164: }
165: }
166:
167: /*
168: * We get to use two SBus interrupt levels.
169: * The higher level we use for status change interrupts;
170: * the lower level for PC card I/O.
171: */
172: ssc->sc_ih[1].ih_fun = stp4020_statintr;
173: ssc->sc_ih[1].ih_arg = sc;
174: intr_establish(ca->ca_ra.ra_intr[1].int_pri,
175: &ssc->sc_ih[1], -1, self->dv_xname);
176: printf(" pri %d", ca->ca_ra.ra_intr[1].int_pri);
177:
178: ssc->sc_ih[0].ih_fun = stp4020_iointr;
179: ssc->sc_ih[0].ih_arg = sc;
180: intr_establish(ca->ca_ra.ra_intr[0].int_pri,
181: &ssc->sc_ih[0], -1, self->dv_xname);
182: printf(" and %d", ca->ca_ra.ra_intr[0].int_pri);
183:
184: stpattach_common(sc, ((struct sbus_softc *)parent)->sc_clockfreq);
185: }
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