1/*-
2 * Copyright (c) 2013 The FreeBSD Foundation
3 * All rights reserved.
4 *
5 * This software was developed by Aleksandr Rybalko under sponsorship from the
6 * FreeBSD Foundation.
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 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
| 1/*-
2 * Copyright (c) 2013 The FreeBSD Foundation
3 * All rights reserved.
4 *
5 * This software was developed by Aleksandr Rybalko under sponsorship from the
6 * FreeBSD Foundation.
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 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
|
38
39#include <sys/param.h>
40#include <sys/systm.h>
41#include <sys/bus.h>
42#include <sys/conf.h>
43#include <sys/kernel.h>
44#include <sys/malloc.h>
45#include <sys/module.h>
46#include <sys/queue.h>
47#include <sys/fbio.h>
48
49#include <machine/bus.h>
50
51#include <dev/vt/vt.h>
52#include <dev/vt/hw/fb/vt_fb.h>
53
54#include "fb_if.h"
55
56LIST_HEAD(fb_list_head_t, fb_list_entry) fb_list_head =
57 LIST_HEAD_INITIALIZER(fb_list_head);
58struct fb_list_entry {
59 struct fb_info *fb_info;
60 struct cdev *fb_si;
61 LIST_ENTRY(fb_list_entry) fb_list;
62};
63
64struct fbd_softc {
65 device_t sc_dev;
66 struct fb_info *sc_info;
67};
68
69static void fbd_evh_init(void *);
70/* SI_ORDER_SECOND, just after EVENTHANDLERs initialized. */
71SYSINIT(fbd_evh_init, SI_SUB_CONFIGURE, SI_ORDER_SECOND, fbd_evh_init, NULL);
72
73static d_open_t fb_open;
74static d_close_t fb_close;
75static d_read_t fb_read;
76static d_write_t fb_write;
77static d_ioctl_t fb_ioctl;
78static d_mmap_t fb_mmap;
79
80static struct cdevsw fb_cdevsw = {
81 .d_version = D_VERSION,
82 .d_flags = D_NEEDGIANT,
83 .d_open = fb_open,
84 .d_close = fb_close,
85 .d_read = fb_read,
86 .d_write = fb_write,
87 .d_ioctl = fb_ioctl,
88 .d_mmap = fb_mmap,
89 .d_name = "fb",
90};
91
92static int framebuffer_dev_unit = 0;
93
94static int
95fb_open(struct cdev *dev, int oflags, int devtype, struct thread *td)
96{
97
98 return (0);
99}
100
101static int
102fb_close(struct cdev *dev, int fflag, int devtype, struct thread *td)
103{
104
105 return (0);
106}
107
108static int
109fb_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
110 struct thread *td)
111{
112 struct fb_info *info;
113 int error;
114
115 error = 0;
116 info = dev->si_drv1;
117
118 switch (cmd) {
119 case FBIOGTYPE:
120 bcopy(info, (struct fbtype *)data, sizeof(struct fbtype));
121 break;
122
123 case FBIO_GETWINORG: /* get frame buffer window origin */
124 *(u_int *)data = 0;
125 break;
126
127 case FBIO_GETDISPSTART: /* get display start address */
128 ((video_display_start_t *)data)->x = 0;
129 ((video_display_start_t *)data)->y = 0;
130 break;
131
132 case FBIO_GETLINEWIDTH: /* get scan line width in bytes */
133 *(u_int *)data = info->fb_stride;
134 break;
135
136 case FBIO_BLANK: /* blank display */
137 error = 0; /* TODO */
138 break;
139
140 default:
141 error = ENOIOCTL;
142 break;
143 }
144 return (error);
145}
146
147static int
148fb_read(struct cdev *dev, struct uio *uio, int ioflag)
149{
150
151 return (0); /* XXX nothing to read, yet */
152}
153
154static int
155fb_write(struct cdev *dev, struct uio *uio, int ioflag)
156{
157
158 return (0); /* XXX nothing written */
159}
160
161static int
162fb_mmap(struct cdev *dev, vm_ooffset_t offset, vm_paddr_t *paddr, int nprot,
163 vm_memattr_t *memattr)
164{
165 struct fb_info *info;
166
167 info = dev->si_drv1;
168
169 if ((info->fb_flags & FB_FLAG_NOMMAP) || info->fb_pbase == 0)
170 return (ENODEV);
171
172 if (offset < info->fb_size) {
173 *paddr = info->fb_pbase + offset;
174 return (0);
175 }
176 return (EINVAL);
177}
178
179static int
180fb_init(struct fb_list_entry *entry, int unit)
181{
182 struct fb_info *info;
183
184 info = entry->fb_info;
185 entry->fb_si = make_dev(&fb_cdevsw, unit, UID_ROOT, GID_WHEEL,
186 0600, "fb%d", unit);
187 entry->fb_si->si_drv1 = info;
188 info->fb_cdev = entry->fb_si;
189
190 return (0);
191}
192
193int
194fbd_list()
195{
196 struct fb_list_entry *entry;
197
198 if (LIST_EMPTY(&fb_list_head))
199 return (ENOENT);
200
201 LIST_FOREACH(entry, &fb_list_head, fb_list) {
202 printf("FB %s @%p\n", entry->fb_info->fb_name,
203 (void *)entry->fb_info->fb_pbase);
204 }
205
206 return (0);
207}
208
209static struct fb_list_entry *
210fbd_find(struct fb_info* info)
211{
212 struct fb_list_entry *entry, *tmp;
213
214 LIST_FOREACH_SAFE(entry, &fb_list_head, fb_list, tmp) {
215 if (entry->fb_info == info) {
216 return (entry);
217 }
218 }
219
220 return (NULL);
221}
222
223int
224fbd_register(struct fb_info* info)
225{
226 struct fb_list_entry *entry;
227 int err, first;
228
229 first = 0;
230 if (LIST_EMPTY(&fb_list_head))
231 first++;
232
233 entry = fbd_find(info);
234 if (entry != NULL) {
235 /* XXX Update framebuffer params */
236 return (0);
237 }
238
239 entry = malloc(sizeof(struct fb_list_entry), M_DEVBUF, M_WAITOK|M_ZERO);
240 entry->fb_info = info;
241
242 LIST_INSERT_HEAD(&fb_list_head, entry, fb_list);
243
244 err = fb_init(entry, framebuffer_dev_unit++);
245 if (err)
246 return (err);
247
248 if (first) {
249 err = vt_fb_attach(info);
250 if (err)
251 return (err);
252 }
253
254 return (0);
255}
256
257int
258fbd_unregister(struct fb_info* info)
259{
260 struct fb_list_entry *entry, *tmp;
261
262 LIST_FOREACH_SAFE(entry, &fb_list_head, fb_list, tmp) {
263 if (entry->fb_info == info) {
264 LIST_REMOVE(entry, fb_list);
265 free(entry, M_DEVBUF);
266 return (0);
267 }
268 }
269
270 return (ENOENT);
271}
272
273static void
274register_fb_wrap(void *arg, void *ptr)
275{
276
277 fbd_register((struct fb_info *)ptr);
278}
279
280static void
281unregister_fb_wrap(void *arg, void *ptr)
282{
283
284 fbd_unregister((struct fb_info *)ptr);
285}
286
287static void
288fbd_evh_init(void *ctx)
289{
290
291 EVENTHANDLER_REGISTER(register_framebuffer, register_fb_wrap, NULL,
292 EVENTHANDLER_PRI_ANY);
293 EVENTHANDLER_REGISTER(unregister_framebuffer, unregister_fb_wrap, NULL,
294 EVENTHANDLER_PRI_ANY);
295}
296
297/* Newbus methods. */
298static int
299fbd_probe(device_t dev)
300{
301
302 return (BUS_PROBE_NOWILDCARD);
303}
304
305static int
306fbd_attach(device_t dev)
307{
308 struct fbd_softc *sc;
309 int err;
310
311 sc = device_get_softc(dev);
312
313 sc->sc_dev = dev;
314 sc->sc_info = FB_GETINFO(device_get_parent(dev));
315 if (sc->sc_info == NULL)
316 return (ENXIO);
317 err = fbd_register(sc->sc_info);
318
319 return (err);
320}
321
322static int
323fbd_detach(device_t dev)
324{
325 struct fbd_softc *sc;
326 int err;
327
328 sc = device_get_softc(dev);
329
330 err = fbd_unregister(sc->sc_info);
331
332 return (err);
333}
334
| 38
39#include <sys/param.h>
40#include <sys/systm.h>
41#include <sys/bus.h>
42#include <sys/conf.h>
43#include <sys/kernel.h>
44#include <sys/malloc.h>
45#include <sys/module.h>
46#include <sys/queue.h>
47#include <sys/fbio.h>
48
49#include <machine/bus.h>
50
51#include <dev/vt/vt.h>
52#include <dev/vt/hw/fb/vt_fb.h>
53
54#include "fb_if.h"
55
56LIST_HEAD(fb_list_head_t, fb_list_entry) fb_list_head =
57 LIST_HEAD_INITIALIZER(fb_list_head);
58struct fb_list_entry {
59 struct fb_info *fb_info;
60 struct cdev *fb_si;
61 LIST_ENTRY(fb_list_entry) fb_list;
62};
63
64struct fbd_softc {
65 device_t sc_dev;
66 struct fb_info *sc_info;
67};
68
69static void fbd_evh_init(void *);
70/* SI_ORDER_SECOND, just after EVENTHANDLERs initialized. */
71SYSINIT(fbd_evh_init, SI_SUB_CONFIGURE, SI_ORDER_SECOND, fbd_evh_init, NULL);
72
73static d_open_t fb_open;
74static d_close_t fb_close;
75static d_read_t fb_read;
76static d_write_t fb_write;
77static d_ioctl_t fb_ioctl;
78static d_mmap_t fb_mmap;
79
80static struct cdevsw fb_cdevsw = {
81 .d_version = D_VERSION,
82 .d_flags = D_NEEDGIANT,
83 .d_open = fb_open,
84 .d_close = fb_close,
85 .d_read = fb_read,
86 .d_write = fb_write,
87 .d_ioctl = fb_ioctl,
88 .d_mmap = fb_mmap,
89 .d_name = "fb",
90};
91
92static int framebuffer_dev_unit = 0;
93
94static int
95fb_open(struct cdev *dev, int oflags, int devtype, struct thread *td)
96{
97
98 return (0);
99}
100
101static int
102fb_close(struct cdev *dev, int fflag, int devtype, struct thread *td)
103{
104
105 return (0);
106}
107
108static int
109fb_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
110 struct thread *td)
111{
112 struct fb_info *info;
113 int error;
114
115 error = 0;
116 info = dev->si_drv1;
117
118 switch (cmd) {
119 case FBIOGTYPE:
120 bcopy(info, (struct fbtype *)data, sizeof(struct fbtype));
121 break;
122
123 case FBIO_GETWINORG: /* get frame buffer window origin */
124 *(u_int *)data = 0;
125 break;
126
127 case FBIO_GETDISPSTART: /* get display start address */
128 ((video_display_start_t *)data)->x = 0;
129 ((video_display_start_t *)data)->y = 0;
130 break;
131
132 case FBIO_GETLINEWIDTH: /* get scan line width in bytes */
133 *(u_int *)data = info->fb_stride;
134 break;
135
136 case FBIO_BLANK: /* blank display */
137 error = 0; /* TODO */
138 break;
139
140 default:
141 error = ENOIOCTL;
142 break;
143 }
144 return (error);
145}
146
147static int
148fb_read(struct cdev *dev, struct uio *uio, int ioflag)
149{
150
151 return (0); /* XXX nothing to read, yet */
152}
153
154static int
155fb_write(struct cdev *dev, struct uio *uio, int ioflag)
156{
157
158 return (0); /* XXX nothing written */
159}
160
161static int
162fb_mmap(struct cdev *dev, vm_ooffset_t offset, vm_paddr_t *paddr, int nprot,
163 vm_memattr_t *memattr)
164{
165 struct fb_info *info;
166
167 info = dev->si_drv1;
168
169 if ((info->fb_flags & FB_FLAG_NOMMAP) || info->fb_pbase == 0)
170 return (ENODEV);
171
172 if (offset < info->fb_size) {
173 *paddr = info->fb_pbase + offset;
174 return (0);
175 }
176 return (EINVAL);
177}
178
179static int
180fb_init(struct fb_list_entry *entry, int unit)
181{
182 struct fb_info *info;
183
184 info = entry->fb_info;
185 entry->fb_si = make_dev(&fb_cdevsw, unit, UID_ROOT, GID_WHEEL,
186 0600, "fb%d", unit);
187 entry->fb_si->si_drv1 = info;
188 info->fb_cdev = entry->fb_si;
189
190 return (0);
191}
192
193int
194fbd_list()
195{
196 struct fb_list_entry *entry;
197
198 if (LIST_EMPTY(&fb_list_head))
199 return (ENOENT);
200
201 LIST_FOREACH(entry, &fb_list_head, fb_list) {
202 printf("FB %s @%p\n", entry->fb_info->fb_name,
203 (void *)entry->fb_info->fb_pbase);
204 }
205
206 return (0);
207}
208
209static struct fb_list_entry *
210fbd_find(struct fb_info* info)
211{
212 struct fb_list_entry *entry, *tmp;
213
214 LIST_FOREACH_SAFE(entry, &fb_list_head, fb_list, tmp) {
215 if (entry->fb_info == info) {
216 return (entry);
217 }
218 }
219
220 return (NULL);
221}
222
223int
224fbd_register(struct fb_info* info)
225{
226 struct fb_list_entry *entry;
227 int err, first;
228
229 first = 0;
230 if (LIST_EMPTY(&fb_list_head))
231 first++;
232
233 entry = fbd_find(info);
234 if (entry != NULL) {
235 /* XXX Update framebuffer params */
236 return (0);
237 }
238
239 entry = malloc(sizeof(struct fb_list_entry), M_DEVBUF, M_WAITOK|M_ZERO);
240 entry->fb_info = info;
241
242 LIST_INSERT_HEAD(&fb_list_head, entry, fb_list);
243
244 err = fb_init(entry, framebuffer_dev_unit++);
245 if (err)
246 return (err);
247
248 if (first) {
249 err = vt_fb_attach(info);
250 if (err)
251 return (err);
252 }
253
254 return (0);
255}
256
257int
258fbd_unregister(struct fb_info* info)
259{
260 struct fb_list_entry *entry, *tmp;
261
262 LIST_FOREACH_SAFE(entry, &fb_list_head, fb_list, tmp) {
263 if (entry->fb_info == info) {
264 LIST_REMOVE(entry, fb_list);
265 free(entry, M_DEVBUF);
266 return (0);
267 }
268 }
269
270 return (ENOENT);
271}
272
273static void
274register_fb_wrap(void *arg, void *ptr)
275{
276
277 fbd_register((struct fb_info *)ptr);
278}
279
280static void
281unregister_fb_wrap(void *arg, void *ptr)
282{
283
284 fbd_unregister((struct fb_info *)ptr);
285}
286
287static void
288fbd_evh_init(void *ctx)
289{
290
291 EVENTHANDLER_REGISTER(register_framebuffer, register_fb_wrap, NULL,
292 EVENTHANDLER_PRI_ANY);
293 EVENTHANDLER_REGISTER(unregister_framebuffer, unregister_fb_wrap, NULL,
294 EVENTHANDLER_PRI_ANY);
295}
296
297/* Newbus methods. */
298static int
299fbd_probe(device_t dev)
300{
301
302 return (BUS_PROBE_NOWILDCARD);
303}
304
305static int
306fbd_attach(device_t dev)
307{
308 struct fbd_softc *sc;
309 int err;
310
311 sc = device_get_softc(dev);
312
313 sc->sc_dev = dev;
314 sc->sc_info = FB_GETINFO(device_get_parent(dev));
315 if (sc->sc_info == NULL)
316 return (ENXIO);
317 err = fbd_register(sc->sc_info);
318
319 return (err);
320}
321
322static int
323fbd_detach(device_t dev)
324{
325 struct fbd_softc *sc;
326 int err;
327
328 sc = device_get_softc(dev);
329
330 err = fbd_unregister(sc->sc_info);
331
332 return (err);
333}
334
|
360
361 { 0, 0 }
362};
363
364driver_t fbd_driver = {
365 "fbd",
366 fbd_methods,
367 sizeof(struct fbd_softc)
368};
369
370devclass_t fbd_devclass;
371
372DRIVER_MODULE(fbd, fb, fbd_driver, fbd_devclass, 0, 0);
373DRIVER_MODULE(fbd, drmn, fbd_driver, fbd_devclass, 0, 0);
374MODULE_VERSION(fbd, 1);
375
| 342
343 { 0, 0 }
344};
345
346driver_t fbd_driver = {
347 "fbd",
348 fbd_methods,
349 sizeof(struct fbd_softc)
350};
351
352devclass_t fbd_devclass;
353
354DRIVER_MODULE(fbd, fb, fbd_driver, fbd_devclass, 0, 0);
355DRIVER_MODULE(fbd, drmn, fbd_driver, fbd_devclass, 0, 0);
356MODULE_VERSION(fbd, 1);
357
|