1 /* $NetBSD: grf_cc.c,v 1.44 2022/03/28 12:38:57 riastradh Exp $ */
2
3 /*
4 * Copyright (c) 1994 Christian E. Hopps
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Christian E. Hopps.
18 * 4. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 #include <sys/cdefs.h>
34 __KERNEL_RCSID(0, "$NetBSD: grf_cc.c,v 1.44 2022/03/28 12:38:57 riastradh Exp $");
35
36 #include "grfcc.h"
37 #include "ite.h"
38 #if NGRFCC > 0
39 /*
40 * currently this is a backward compat hack that interface to
41 * view.c
42 */
43
44 #include <sys/param.h>
45 #include <sys/proc.h>
46 #include <sys/errno.h>
47 #include <sys/ioctl.h>
48 #include <sys/queue.h>
49 #include <sys/device.h>
50 #include <sys/device_impl.h> /* XXX autoconf abuse */
51 #include <sys/systm.h>
52 #include <sys/conf.h>
53 #include <machine/cpu.h>
54 #include <amiga/amiga/color.h> /* DEBUG */
55 #include <amiga/amiga/device.h>
56 #include <amiga/amiga/custom.h>
57 #include <amiga/amiga/cia.h>
58 #include <amiga/dev/grfioctl.h>
59 #include <amiga/dev/grfvar.h>
60 #include <amiga/dev/grf_ccreg.h>
61 #include <amiga/dev/grfabs_reg.h>
62 #include <amiga/dev/viewioctl.h>
63
64 #include "view.h"
65
66 int grfccmatch(device_t, cfdata_t, void *);
67 int grfccprint(void *, const char *);
68 void grfccattach(device_t, device_t, void *);
69 void grf_cc_on(struct grf_softc *);
70
71 CFATTACH_DECL_NEW(grfcc, sizeof(struct grf_softc),
72 grfccmatch, grfccattach, NULL, NULL);
73
74 /*
75 * only used in console init
76 */
77 static cfdata_t cfdata;
78
79 /*
80 * we make sure to only init things once. this is somewhat
81 * tricky regarding the console.
82 */
83 int
grfccmatch(device_t parent,cfdata_t cf,void * aux)84 grfccmatch(device_t parent, cfdata_t cf, void *aux)
85 {
86 static int ccconunit = -1;
87 char *mainbus_name = aux;
88 extern const struct cdevsw view_cdevsw;
89
90 /*
91 * allow only one cc console
92 */
93 if (amiga_realconfig == 0 && ccconunit != -1)
94 return(0);
95 if (matchname("grfcc", mainbus_name) == 0)
96 return(0);
97 if (amiga_realconfig == 0 || ccconunit != cf->cf_unit) {
98 if (grfcc_probe() == 0)
99 return(0);
100 viewprobe();
101 /*
102 * XXX nasty hack. opens view[0] and never closes.
103 */
104 if ((*view_cdevsw.d_open)(0, 0, 0, NULL))
105 return(0);
106 if (amiga_realconfig == 0) {
107 ccconunit = cf->cf_unit;
108 cfdata = cf;
109 }
110 }
111 return(1);
112 }
113
114 /*
115 * attach to the grfbus (mainbus)
116 */
117 void
grfccattach(device_t parent,device_t self,void * aux)118 grfccattach(device_t parent, device_t self, void *aux)
119 {
120 static struct grf_softc congrf;
121 struct device temp;
122 struct grf_softc *gp;
123
124 if (self == NULL) {
125 gp = &congrf;
126 gp->g_device = &temp;
127 temp.dv_private = gp;
128 } else {
129 gp = device_private(self);
130 gp->g_device = self;
131 }
132
133 if (self != NULL && congrf.g_regkva != 0) {
134 /*
135 * we inited earlier just copy the info
136 * take care not to copy the device struct though.
137 */
138 memcpy(&gp->g_display, &congrf.g_display,
139 (char *)&gp[1] - (char *)&gp->g_display);
140 } else {
141 gp->g_unit = GRF_CC_UNIT;
142 gp->g_flags = GF_ALIVE;
143 gp->g_mode = cc_mode;
144 #if NITE > 0
145 gp->g_conpri = grfcc_cnprobe();
146 grfcc_iteinit(gp);
147 #endif
148 grf_cc_on(gp);
149 }
150 if (self != NULL)
151 printf("\n");
152 /*
153 * attach grf
154 */
155 amiga_config_found(cfdata, gp->g_device, gp, grfccprint, CFARGS_NONE);
156 }
157
158 int
grfccprint(void * aux,const char * pnp)159 grfccprint(void *aux, const char *pnp)
160 {
161 if (pnp)
162 aprint_normal("grf%d at %s", ((struct grf_softc *)aux)->g_unit,
163 pnp);
164 return(UNCONF);
165 }
166
167 /*
168 * Change the mode of the display.
169 * Right now all we can do is grfon/grfoff.
170 * Return a UNIX error number or 0 for success.
171 */
172 /*ARGSUSED*/
173 int
cc_mode(struct grf_softc * gp,u_long cmd,void * arg,u_long a2,int a3)174 cc_mode(struct grf_softc *gp, u_long cmd, void *arg, u_long a2, int a3)
175 {
176 extern const struct cdevsw view_cdevsw;
177
178 switch (cmd) {
179 case GM_GRFON:
180 grf_cc_on(gp);
181 return(0);
182 case GM_GRFOFF:
183 (*view_cdevsw.d_ioctl)(0, VIOCREMOVE, NULL, -1, NULL);
184 return(0);
185 case GM_GRFCONFIG:
186 default:
187 break;
188 }
189 return(EPASSTHROUGH);
190 }
191
192 void
grf_cc_on(struct grf_softc * gp)193 grf_cc_on(struct grf_softc *gp)
194 {
195 struct view_size vs;
196 bmap_t bm;
197 struct grfinfo *gi;
198 extern const struct cdevsw view_cdevsw;
199
200 gi = &gp->g_display;
201
202 /* XXX type of bm ? */
203 (*view_cdevsw.d_ioctl)(0, VIOCGBMAP, (void *)&bm, -1, NULL);
204
205 gp->g_data = (void *) 0xDeadBeaf; /* not particularly clean.. */
206
207 gi->gd_regaddr = (void *) 0xdff000; /* depricated */
208 gi->gd_regsize = round_page(sizeof (custom));
209 gi->gd_fbaddr = bm.hardware_address;
210 gi->gd_fbsize = bm.depth*bm.bytes_per_row*bm.rows;
211
212 if ((*view_cdevsw.d_ioctl)(0, VIOCGSIZE, (void *)&vs, -1, NULL)) {
213 /* XXX type of vs ? */
214 /* fill in some default values... XXX */
215 vs.width = 640;
216 vs.height = 400;
217 vs.depth = 2;
218 }
219 gi->gd_colors = 1 << vs.depth;
220 gi->gd_planes = vs.depth;
221
222 gi->gd_fbwidth = vs.width;
223 gi->gd_fbheight = vs.height;
224 gi->gd_fbx = 0;
225 gi->gd_fby = 0;
226 gi->gd_dwidth = vs.width;
227 gi->gd_dheight = vs.height;
228 gi->gd_dx = 0;
229 gi->gd_dy = 0;
230
231 gp->g_regkva = (void *)0xDeadBeaf; /* builtin */
232 gp->g_fbkva = NULL; /* not needed, view internal */
233
234 (*view_cdevsw.d_ioctl)(0, VIOCDISPLAY, NULL, -1, NULL);
235 }
236 #endif
237