1 /* $OpenBSD: gfb.c,v 1.4 2022/07/15 17:57:26 kettenis Exp $ */
2
3 /*
4 * Copyright (c) 2009 Mark Kettenis.
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 #include <sys/param.h>
20 #include <sys/device.h>
21 #include <sys/systm.h>
22
23 #include <machine/bus.h>
24 #include <machine/autoconf.h>
25
26 #include <dev/wscons/wsconsio.h>
27 #include <dev/wscons/wsdisplayvar.h>
28 #include <dev/rasops/rasops.h>
29 #include <machine/fbvar.h>
30
31 struct gfb_softc {
32 struct sunfb sc_sunfb;
33 bus_space_tag_t sc_bt;
34 bus_space_handle_t sc_pixel_h;
35 int sc_console;
36 int sc_node;
37 u_int sc_mode;
38 };
39
40 int gfb_match(struct device *, void *, void *);
41 void gfb_attach(struct device *, struct device *, void *);
42
43 int gfb_ioctl(void *, u_long, caddr_t, int, struct proc *);
44
45 struct wsdisplay_accessops gfb_accessops = {
46 .ioctl = gfb_ioctl
47 };
48
49 struct cfdriver gfb_cd = {
50 NULL, "gfb", DV_DULL
51 };
52
53 const struct cfattach gfb_ca = {
54 sizeof(struct gfb_softc), gfb_match, gfb_attach
55 };
56
57 int
gfb_match(struct device * parent,void * match,void * aux)58 gfb_match(struct device *parent, void *match, void *aux)
59 {
60 struct mainbus_attach_args *ma = aux;
61
62 if (strcmp(ma->ma_name, "SUNW,gfb") == 0)
63 return (1);
64 return (0);
65 }
66
67 void
gfb_attach(struct device * parent,struct device * self,void * aux)68 gfb_attach(struct device *parent, struct device *self, void *aux)
69 {
70 struct gfb_softc *sc = (struct gfb_softc *)self;
71 struct mainbus_attach_args *ma = aux;
72 extern int fbnode;
73
74 sc->sc_bt = ma->ma_bustag;
75
76 printf("\n");
77
78 if (bus_space_map(ma->ma_bustag, ma->ma_reg[6].ur_paddr,
79 ma->ma_reg[6].ur_len, BUS_SPACE_MAP_LINEAR, &sc->sc_pixel_h))
80 return;
81
82 sc->sc_console = (fbnode == ma->ma_node);
83 sc->sc_node = ma->ma_node;
84
85 fb_setsize(&sc->sc_sunfb, 32, 1152, 900, sc->sc_node, 0);
86 /* linesize has a fixed value, compensate */
87 sc->sc_sunfb.sf_linebytes = 16384;
88 sc->sc_sunfb.sf_fbsize = sc->sc_sunfb.sf_height * 16384;
89
90 sc->sc_sunfb.sf_ro.ri_bits = (void *)bus_space_vaddr(sc->sc_bt,
91 sc->sc_pixel_h);
92 sc->sc_sunfb.sf_ro.ri_hw = sc;
93 fbwscons_init(&sc->sc_sunfb, 0, sc->sc_console);
94
95 if (sc->sc_console)
96 fbwscons_console_init(&sc->sc_sunfb, -1);
97
98 fbwscons_attach(&sc->sc_sunfb, &gfb_accessops, sc->sc_console);
99 return;
100 }
101
102 int
gfb_ioctl(void * v,u_long cmd,caddr_t data,int flags,struct proc * p)103 gfb_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p)
104 {
105 struct gfb_softc *sc = v;
106 struct wsdisplay_fbinfo *wdf;
107
108 switch (cmd) {
109 case WSDISPLAYIO_GTYPE:
110 *(u_int *)data = WSDISPLAY_TYPE_UNKNOWN;
111 break;
112 case WSDISPLAYIO_SMODE:
113 sc->sc_mode = *(u_int *)data;
114 break;
115 case WSDISPLAYIO_GINFO:
116 wdf = (void *)data;
117 wdf->height = sc->sc_sunfb.sf_height;
118 wdf->width = sc->sc_sunfb.sf_width;
119 wdf->depth = sc->sc_sunfb.sf_depth;
120 wdf->stride = sc->sc_sunfb.sf_linebytes;
121 wdf->offset = 0;
122 wdf->cmsize = 256;
123 break;
124 case WSDISPLAYIO_LINEBYTES:
125 *(u_int *)data = sc->sc_sunfb.sf_linebytes;
126 break;
127
128 #if 0
129 case WSDISPLAYIO_GETCMAP:
130 return gfb_getcmap(sc, (struct wsdisplay_cmap *)data);
131 case WSDISPLAYIO_PUTCMAP:
132 return gfb_putcmap(sc, (struct wsdisplay_cmap *)data);
133 #endif
134
135 case WSDISPLAYIO_SVIDEO:
136 case WSDISPLAYIO_GVIDEO:
137 break;
138
139 case WSDISPLAYIO_GCURPOS:
140 case WSDISPLAYIO_SCURPOS:
141 case WSDISPLAYIO_GCURMAX:
142 case WSDISPLAYIO_GCURSOR:
143 case WSDISPLAYIO_SCURSOR:
144 default:
145 return -1; /* not supported yet */
146 }
147
148 return (0);
149 }
150