1 /* $NetBSD: vga_jazzio.c,v 1.18 2023/12/20 06:36:02 thorpej Exp $ */
2 /* NetBSD: vga_isa.c,v 1.3 1998/06/12 18:45:48 drochner 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: vga_jazzio.c,v 1.18 2023/12/20 06:36:02 thorpej Exp $");
33
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/kernel.h>
37 #include <sys/device.h>
38 #include <uvm/uvm_extern.h>
39
40 #include <machine/autoconf.h>
41 #include <sys/bus.h>
42 #include <machine/wired_map.h>
43
44 #include <mips/pte.h>
45
46 #include <dev/ic/mc6845reg.h>
47 #include <dev/ic/pcdisplayvar.h>
48 #include <dev/ic/vgareg.h>
49 #include <dev/ic/vgavar.h>
50
51 #include <arc/jazz/jazziovar.h>
52 #include <arc/jazz/pica.h>
53 #include <arc/jazz/vga_jazziovar.h>
54
55 #include <dev/wscons/wsconsio.h>
56 #include <dev/wscons/wsdisplayvar.h>
57
58 #define WSDISPLAY_TYPE_JAZZVGA WSDISPLAY_TYPE_PCIVGA /* XXX not really */
59
60 int vga_jazzio_init_tag(const char *, bus_space_tag_t *, bus_space_tag_t *);
61 paddr_t vga_jazzio_mmap(void *, off_t, int);
62 int vga_jazzio_match(device_t, cfdata_t, void *);
63 void vga_jazzio_attach(device_t, device_t, void *);
64
65 CFATTACH_DECL_NEW(vga_jazzio, sizeof(struct vga_softc),
66 vga_jazzio_match, vga_jazzio_attach, NULL, NULL);
67
68 const struct vga_funcs vga_jazzio_funcs = {
69 NULL,
70 vga_jazzio_mmap,
71 };
72
73 int
vga_jazzio_init_tag(const char * name,bus_space_tag_t * iotp,bus_space_tag_t * memtp)74 vga_jazzio_init_tag(const char *name, bus_space_tag_t *iotp,
75 bus_space_tag_t *memtp)
76 {
77 static int initialized = 0;
78 static struct arc_bus_space vga_io, vga_mem;
79
80 if (strcmp(name, "ALI_S3") != 0)
81 return ENXIO;
82
83 if (!initialized) {
84 initialized = 1;
85
86 arc_bus_space_init(&vga_io, "vga_jazzio_io",
87 PICA_P_LOCAL_VIDEO_CTRL, PICA_V_LOCAL_VIDEO_CTRL,
88 0, PICA_S_LOCAL_VIDEO_CTRL);
89 arc_bus_space_init(&vga_mem, "vga_jazzio_mem",
90 PICA_P_LOCAL_VIDEO, PICA_V_LOCAL_VIDEO,
91 0, PICA_S_LOCAL_VIDEO);
92
93 arc_wired_enter_page(PICA_V_LOCAL_VIDEO_CTRL,
94 PICA_P_LOCAL_VIDEO_CTRL,
95 PICA_S_LOCAL_VIDEO_CTRL / 2);
96 arc_wired_enter_page(
97 PICA_V_LOCAL_VIDEO_CTRL + PICA_S_LOCAL_VIDEO_CTRL/2,
98 PICA_P_LOCAL_VIDEO_CTRL + PICA_S_LOCAL_VIDEO_CTRL/2,
99 PICA_S_LOCAL_VIDEO_CTRL / 2);
100
101 arc_wired_enter_page(PICA_V_LOCAL_VIDEO,
102 PICA_P_LOCAL_VIDEO,
103 PICA_S_LOCAL_VIDEO / 2);
104 arc_wired_enter_page(
105 PICA_V_LOCAL_VIDEO + PICA_S_LOCAL_VIDEO / 2,
106 PICA_P_LOCAL_VIDEO + PICA_S_LOCAL_VIDEO / 2,
107 PICA_S_LOCAL_VIDEO / 2);
108 #if 0
109 arc_wired_enter_page(PICA_V_EXTND_VIDEO_CTRL,
110 PICA_P_EXTND_VIDEO_CTRL,
111 PICA_S_EXTND_VIDEO_CTRL / 2);
112 arc_wired_enter_page(
113 PICA_V_EXTND_VIDEO_CTRL + PICA_S_EXTND_VIDEO_CTRL / 2,
114 PICA_P_EXTND_VIDEO_CTRL + PICA_S_EXTND_VIDEO_CTRL / 2,
115 PICA_S_EXTND_VIDEO_CTRL / 2);
116 #endif
117 }
118 *iotp = &vga_io;
119 *memtp = &vga_mem;
120 return 0;
121 }
122
123 paddr_t
vga_jazzio_mmap(void * v,off_t offset,int prot)124 vga_jazzio_mmap(void *v, off_t offset, int prot)
125 {
126
127 if (offset >= 0xa0000 && offset < 0xc0000)
128 return mips_btop(PICA_P_LOCAL_VIDEO + offset);
129 if (offset >= 0x0000 && offset < 0x10000)
130 return mips_btop(PICA_P_LOCAL_VIDEO_CTRL + offset);
131 if (offset >= 0x40000000 && offset < 0x40800000)
132 return mips_btop(PICA_P_LOCAL_VIDEO + offset - 0x40000000);
133 return -1;
134 }
135
136 int
vga_jazzio_match(device_t parent,cfdata_t match,void * aux)137 vga_jazzio_match(device_t parent, cfdata_t match, void *aux)
138 {
139 struct jazzio_attach_args *ja = aux;
140 bus_space_tag_t iot, memt;
141
142 if (vga_jazzio_init_tag(ja->ja_name, &iot, &memt))
143 return 0;
144
145 if (!vga_is_console(iot, WSDISPLAY_TYPE_JAZZVGA) &&
146 !vga_common_probe(iot, memt))
147 return 0;
148
149 return 1;
150 }
151
152 void
vga_jazzio_attach(device_t parent,device_t self,void * aux)153 vga_jazzio_attach(device_t parent, device_t self, void *aux)
154 {
155 struct vga_softc *sc = device_private(self);
156 struct jazzio_attach_args *ja = aux;
157 bus_space_tag_t iot, memt;
158
159 aprint_normal("\n");
160
161 sc->sc_dev = self;
162 vga_jazzio_init_tag(ja->ja_name, &iot, &memt);
163 vga_common_attach(sc, iot, memt, WSDISPLAY_TYPE_JAZZVGA, 0,
164 &vga_jazzio_funcs);
165 }
166
167 int
vga_jazzio_cnattach(char * name)168 vga_jazzio_cnattach(char *name)
169 {
170 bus_space_tag_t iot, memt;
171
172 if (vga_jazzio_init_tag(name, &iot, &memt))
173 return ENXIO;
174 return vga_cnattach(iot, memt, WSDISPLAY_TYPE_JAZZVGA, 1);
175 }
176