Annotation of sys/arch/sparc64/dev/com_ebus.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: com_ebus.c,v 1.12 2007/04/03 23:17:42 kettenis Exp $ */
2: /* $NetBSD: com_ebus.c,v 1.6 2001/07/24 19:27:10 eeh Exp $ */
3:
4: /*
5: * Copyright (c) 1999, 2000 Matthew R. Green
6: * All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. The name of the author may not be used to endorse or promote products
17: * derived from this software without specific prior written permission.
18: *
19: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
24: * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25: * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
26: * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
27: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29: * SUCH DAMAGE.
30: */
31:
32: /*
33: * NS Super I/O PC87332VLJ "com" to ebus attachment
34: */
35:
36: #include <sys/types.h>
37: #include <sys/param.h>
38: #include <sys/systm.h>
39: #include <sys/device.h>
40: #include <sys/tty.h>
41: #include <sys/conf.h>
42:
43: #include <machine/bus.h>
44: #include <machine/autoconf.h>
45: #include <machine/openfirm.h>
46:
47: #include <sparc64/dev/ebusreg.h>
48: #include <sparc64/dev/ebusvar.h>
49:
50: #include <dev/cons.h>
51: #include <dev/ic/comvar.h>
52:
53: cdev_decl(com); /* XXX this belongs elsewhere */
54:
55: int com_ebus_match(struct device *, void *, void *);
56: void com_ebus_attach(struct device *, struct device *, void *);
57:
58: struct cfattach com_ebus_ca = {
59: sizeof(struct com_softc), com_ebus_match, com_ebus_attach
60: };
61:
62: static char *com_names[] = {
63: "su",
64: "su_pnp",
65: NULL
66: };
67:
68: int
69: com_ebus_match(parent, match, aux)
70: struct device *parent;
71: void *match;
72: void *aux;
73: {
74: struct ebus_attach_args *ea = aux;
75: int i;
76:
77: for (i=0; com_names[i]; i++)
78: if (strcmp(ea->ea_name, com_names[i]) == 0)
79: return (1);
80:
81: if (strcmp(ea->ea_name, "serial") == 0) {
82: char compat[80];
83:
84: /* Could be anything. */
85: if ((i = OF_getproplen(ea->ea_node, "compatible")) &&
86: OF_getprop(ea->ea_node, "compatible", compat,
87: sizeof(compat)) == i) {
88: if (strcmp(compat, "su16552") == 0 ||
89: strcmp(compat, "su16550") == 0 ||
90: strcmp(compat, "su") == 0) {
91: return (1);
92: }
93: }
94: }
95: return (0);
96: }
97:
98: /* XXXART - was 1846200 */
99: #define BAUD_BASE (1843200)
100:
101: void
102: com_ebus_attach(parent, self, aux)
103: struct device *parent, *self;
104: void *aux;
105: {
106: struct com_softc *sc = (void *)self;
107: struct ebus_attach_args *ea = aux;
108: int i, com_is_input, com_is_output;
109:
110: sc->sc_iobase = EBUS_PADDR_FROM_REG(&ea->ea_regs[0]);
111: /*
112: * Addresses that should be supplied by the prom:
113: * - normal com registers
114: * - ns873xx configuration registers
115: * - DMA space
116: * The `com' driver does not use DMA accesses, so we can
117: * ignore that for now. We should enable the com port in
118: * the ns873xx registers here. XXX
119: *
120: * Use the prom address if there.
121: */
122: if (ea->ea_nvaddrs) {
123: if (bus_space_map(ea->ea_memtag, ea->ea_vaddrs[0], 0,
124: BUS_SPACE_MAP_PROMADDRESS, &sc->sc_ioh) != 0) {
125: printf(": can't map register space\n");
126: return;
127: }
128: sc->sc_iot = ea->ea_memtag;
129: } else if (ebus_bus_map(ea->ea_memtag, 0,
130: EBUS_PADDR_FROM_REG(&ea->ea_regs[0]),
131: ea->ea_regs[0].size, 0, 0, &sc->sc_ioh) == 0) {
132: sc->sc_iot = ea->ea_memtag;
133: } else if (ebus_bus_map(ea->ea_iotag, 0,
134: EBUS_PADDR_FROM_REG(&ea->ea_regs[0]),
135: ea->ea_regs[0].size, 0, 0, &sc->sc_ioh) == 0) {
136: sc->sc_iot = ea->ea_iotag;
137: } else {
138: printf(": can't map register space\n");
139: return;
140: }
141: sc->sc_hwflags = 0;
142: sc->sc_swflags = 0;
143: sc->sc_frequency = BAUD_BASE;
144:
145: for (i = 0; i < ea->ea_nintrs; i++)
146: bus_intr_establish(sc->sc_iot, ea->ea_intrs[i],
147: IPL_TTY, 0, comintr, sc, self->dv_xname);
148:
149: /* Figure out if we're the console. */
150: com_is_input = (ea->ea_node == OF_instance_to_package(OF_stdin()));
151: com_is_output = (ea->ea_node == OF_instance_to_package(OF_stdout()));
152:
153: if (com_is_input || com_is_output) {
154: struct consdev *cn_orig;
155:
156: comconsioh = sc->sc_ioh;
157: cn_orig = cn_tab;
158: /* Attach com as the console. */
159: if (comcnattach(sc->sc_iot, sc->sc_iobase, 9600,
160: sc->sc_frequency,
161: ((TTYDEF_CFLAG & ~(CSIZE | PARENB))|CREAD | CS8 | HUPCL))) {
162: printf("Error: comcnattach failed\n");
163: }
164: cn_tab = cn_orig;
165: if (com_is_input) {
166: cn_tab->cn_dev = /*XXX*/makedev(36, sc->sc_dev.dv_unit);
167: cn_tab->cn_probe = comcnprobe;
168: cn_tab->cn_init = comcninit;
169: cn_tab->cn_getc = comcngetc;
170: cn_tab->cn_pollc = comcnpollc;
171: }
172: if (com_is_output)
173: cn_tab->cn_putc = comcnputc;
174: }
175:
176: if (OF_getproplen(ea->ea_node, "keyboard") == 0)
177: printf(": keyboard");
178: else if (OF_getproplen(ea->ea_node, "mouse") == 0)
179: printf(": mouse");
180:
181: /* Now attach the driver */
182: com_attach_subr(sc);
183: }
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