1 /* $NetBSD: pccons_jazzio.c,v 1.11 2011/07/01 19:25:42 dyoung Exp $ */
2 /* NetBSD: vga_isa.c,v 1.4 2000/08/14 20:14:51 thorpej Exp */
3
4 /*
5 * Copyright (c) 1995, 1996 Carnegie-Mellon University.
6 * All rights reserved.
7 *
8 * Author: Chris G. Demetriou
9 *
10 * Permission to use, copy, modify and distribute this software and
11 * its documentation is hereby granted, provided that both the copyright
12 * notice and this permission notice appear in all copies of the
13 * software, derivative works or modified versions, and any portions
14 * thereof, and that both notices appear in supporting documentation.
15 *
16 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
17 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
18 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
19 *
20 * Carnegie Mellon requests users of this software to return to
21 *
22 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
23 * School of Computer Science
24 * Carnegie Mellon University
25 * Pittsburgh PA 15213-3890
26 *
27 * any improvements or extensions that they make and grant Carnegie the
28 * rights to redistribute these changes.
29 */
30
31 #include <sys/cdefs.h>
32 __KERNEL_RCSID(0, "$NetBSD: pccons_jazzio.c,v 1.11 2011/07/01 19:25:42 dyoung Exp $");
33
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/device.h>
37 #include <uvm/uvm_extern.h>
38
39 #include <machine/autoconf.h>
40 #include <sys/bus.h>
41 #include <machine/wired_map.h>
42
43 #include <mips/pte.h>
44
45 #include <arc/dev/pcconsvar.h>
46 #include <arc/jazz/jazziovar.h>
47 #include <arc/jazz/pica.h>
48 #include <arc/jazz/pccons_jazziovar.h>
49
50 #define PCKBD_INTR 6 /* XXX - should be obtained from firmware */
51
52 static int pccons_jazzio_match(device_t, cfdata_t, void *);
53 static void pccons_jazzio_attach(device_t, device_t, void *);
54
55 CFATTACH_DECL_NEW(pc_jazzio, sizeof(struct pc_softc),
56 pccons_jazzio_match, pccons_jazzio_attach, NULL, NULL);
57
58 /*
59 * chipset-dependent pccons configuration
60 */
61
62 static void pccons_jazzio_init(void);
63
64 struct pccons_config pccons_jazzio_conf = {
65 0x3b4, 0xb0000, /* mono: iobase, memaddr */
66 0x3d4, 0xb8000, /* cga: iobase, memaddr */
67 PICA_SYS_KBD + 0x61, PICA_SYS_KBD + 0x60, /* kbdc: cmdport, dataport */
68 pccons_jazzio_init
69 };
70
71 static void
pccons_jazzio_init(void)72 pccons_jazzio_init(void)
73 {
74
75 /* nothing to do */
76 }
77
78 static int pccons_jazzio_init_tag(const char *, bus_space_tag_t *,
79 bus_space_tag_t *);
80
81 int
pccons_jazzio_init_tag(const char * name,bus_space_tag_t * iotp,bus_space_tag_t * memtp)82 pccons_jazzio_init_tag(const char *name, bus_space_tag_t *iotp,
83 bus_space_tag_t *memtp)
84 {
85 static int initialized = 0;
86 static struct arc_bus_space vga_io, vga_mem;
87
88 if (strcmp(name, "ALI_S3") != 0)
89 return ENXIO;
90
91 if (!initialized) {
92 initialized = 1;
93
94 arc_bus_space_init(&vga_io, "vga_jazzio_io",
95 PICA_P_LOCAL_VIDEO_CTRL, PICA_V_LOCAL_VIDEO_CTRL,
96 0, PICA_S_LOCAL_VIDEO_CTRL);
97 arc_bus_space_init(&vga_mem, "vga_jazzio_mem",
98 PICA_P_LOCAL_VIDEO, PICA_V_LOCAL_VIDEO,
99 0, PICA_S_LOCAL_VIDEO);
100
101 arc_wired_enter_page(
102 PICA_V_LOCAL_VIDEO_CTRL,
103 PICA_P_LOCAL_VIDEO_CTRL,
104 PICA_S_LOCAL_VIDEO_CTRL / 2);
105 arc_wired_enter_page(
106 PICA_V_LOCAL_VIDEO_CTRL + PICA_S_LOCAL_VIDEO_CTRL / 2,
107 PICA_P_LOCAL_VIDEO_CTRL + PICA_S_LOCAL_VIDEO_CTRL / 2,
108 PICA_S_LOCAL_VIDEO_CTRL / 2);
109
110 arc_wired_enter_page(PICA_V_LOCAL_VIDEO,
111 PICA_P_LOCAL_VIDEO,
112 PICA_S_LOCAL_VIDEO / 2);
113 arc_wired_enter_page(
114 PICA_V_LOCAL_VIDEO + PICA_S_LOCAL_VIDEO / 2,
115 PICA_P_LOCAL_VIDEO + PICA_S_LOCAL_VIDEO / 2,
116 PICA_S_LOCAL_VIDEO / 2);
117 #if 0
118 arc_wired_enter_page(PICA_V_EXTND_VIDEO_CTRL,
119 PICA_P_EXTND_VIDEO_CTRL,
120 PICA_S_EXTND_VIDEO_CTRL / 2);
121 arc_wired_enter_page(
122 PICA_V_EXTND_VIDEO_CTRL + PICA_S_EXTND_VIDEO_CTRL / 2,
123 PICA_P_EXTND_VIDEO_CTRL + PICA_S_EXTND_VIDEO_CTRL / 2,
124 PICA_S_EXTND_VIDEO_CTRL / 2);
125 #endif
126 }
127 *iotp = &vga_io;
128 *memtp = &vga_mem;
129 return 0;
130 }
131
132 static int
pccons_jazzio_match(device_t parent,cfdata_t cf,void * aux)133 pccons_jazzio_match(device_t parent, cfdata_t cf, void *aux)
134 {
135 struct jazzio_attach_args *ja = aux;
136 bus_space_tag_t crt_iot, crt_memt;
137
138 if (pccons_jazzio_init_tag(ja->ja_name, &crt_iot, &crt_memt))
139 return 0;
140
141 if (!pccons_common_match(crt_iot, crt_memt, ja->ja_bust,
142 &pccons_jazzio_conf))
143 return 0;
144
145 return 1;
146 }
147
148 static void
pccons_jazzio_attach(device_t parent,device_t self,void * aux)149 pccons_jazzio_attach(device_t parent, device_t self, void *aux)
150 {
151 struct pc_softc *sc = device_private(self);
152 struct jazzio_attach_args *ja = aux;
153 bus_space_tag_t crt_iot, crt_memt;
154
155 pccons_jazzio_init_tag(ja->ja_name, &crt_iot, &crt_memt);
156 jazzio_intr_establish(PCKBD_INTR, pcintr, sc);
157 pccons_common_attach(sc, crt_iot, crt_memt, ja->ja_bust,
158 &pccons_jazzio_conf);
159 }
160
161 int
pccons_jazzio_cnattach(char * name,bus_space_tag_t kbd_iot)162 pccons_jazzio_cnattach(char *name, bus_space_tag_t kbd_iot)
163 {
164 bus_space_tag_t crt_iot, crt_memt;
165
166 if (pccons_jazzio_init_tag(name, &crt_iot, &crt_memt))
167 return ENXIO;
168 pccons_common_cnattach(crt_iot, crt_memt, kbd_iot,
169 &pccons_jazzio_conf);
170 return 0;
171 }
172