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 if (offset < info->fb_size) {
169 *paddr = info->fb_pbase + offset;
170 return (0);
171 }
172 return (EINVAL);
173}
174
175
176static void
177vt_fb_mem_wr1(struct fb_info *sc, uint32_t o, uint8_t v)
178{
179
180 KASSERT((o < sc->fb_size), ("Offset %#08x out of fb size", o));
181 *(uint8_t *)(sc->fb_vbase + o) = v;
182}
183
184static void
185vt_fb_mem_wr2(struct fb_info *sc, uint32_t o, uint16_t v)
186{
187
188 KASSERT((o < sc->fb_size), ("Offset %#08x out of fb size", o));
189 *(uint16_t *)(sc->fb_vbase + o) = v;
190}
191
192static void
193vt_fb_mem_wr4(struct fb_info *sc, uint32_t o, uint32_t v)
194{
195
196 KASSERT((o < sc->fb_size), ("Offset %#08x out of fb size", o));
197 *(uint32_t *)(sc->fb_vbase + o) = v;
198}
199
200static void
201vt_fb_mem_copy(struct fb_info *sc, uint32_t offset_to, uint32_t offset_from,
202 uint32_t size)
203{
204
205 memmove((void *)(sc->fb_vbase + offset_to), (void *)(sc->fb_vbase +
206 offset_from), size);
207}
208
209static void
210vt_fb_indir_wr1(struct fb_info *sc, uint32_t o, uint8_t v)
211{
212
213 KASSERT((o < sc->fb_size), ("Offset %#08x out of fb size", o));
214 sc->fb_write(sc->fb_priv, o, &v, 1);
215}
216
217static void
218vt_fb_indir_wr2(struct fb_info *sc, uint32_t o, uint16_t v)
219{
220
221 KASSERT((o < sc->fb_size), ("Offset %#08x out of fb size", o));
222 sc->fb_write(sc->fb_priv, o, &v, 2);
223}
224
225static void
226vt_fb_indir_wr4(struct fb_info *sc, uint32_t o, uint32_t v)
227{
228
229 KASSERT((o < sc->fb_size), ("Offset %#08x out of fb size", o));
230 sc->fb_write(sc->fb_priv, o, &v, 4);
231}
232
233static void
234vt_fb_indir_copy(struct fb_info *sc, uint32_t offset_to, uint32_t offset_from,
235 uint32_t size)
236{
237
238 sc->copy(sc->fb_priv, offset_to, offset_from, size);
239}
240
241int
242fb_probe(struct fb_info *info)
243{
244
245 if (info->fb_size == 0)
246 return (ENXIO);
247
248 if (info->fb_write != NULL) {
249 if (info->fb_write == NULL) {
250 return (EINVAL);
251 }
252 info->fb_flags |= FB_FLAG_NOMMAP;
253 info->wr1 = &vt_fb_indir_wr1;
254 info->wr2 = &vt_fb_indir_wr2;
255 info->wr4 = &vt_fb_indir_wr4;
256 info->copy = &vt_fb_indir_copy;
257 } else if (info->fb_vbase != 0) {
258 if (info->fb_pbase == 0)
259 info->fb_flags |= FB_FLAG_NOMMAP;
260 info->wr1 = &vt_fb_mem_wr1;
261 info->wr2 = &vt_fb_mem_wr2;
262 info->wr4 = &vt_fb_mem_wr4;
263 info->copy = &vt_fb_mem_copy;
264 } else
265 return (ENXIO);
266
267 return (0);
268}
269
270
271static int
272fb_init(struct fb_list_entry *entry, int unit)
273{
274 struct fb_info *info;
275
276 info = entry->fb_info;
277 entry->fb_si = make_dev(&fb_cdevsw, unit, UID_ROOT, GID_WHEEL,
278 0600, "fb%d", unit);
279 entry->fb_si->si_drv1 = info;
280
281 return (0);
282}
283
284int
285fbd_list()
286{
287 struct fb_list_entry *entry;
288
289 if (LIST_EMPTY(&fb_list_head))
290 return (ENOENT);
291
292 LIST_FOREACH(entry, &fb_list_head, fb_list) {
293 printf("FB %s @%p\n", entry->fb_info->fb_name,
294 (void *)entry->fb_info->fb_pbase);
295 }
296
297 return (0);
298}
299
300static struct fb_list_entry *
301fbd_find(struct fb_info* info)
302{
303 struct fb_list_entry *entry, *tmp;
304
305 LIST_FOREACH_SAFE(entry, &fb_list_head, fb_list, tmp) {
306 if (entry->fb_info == info) {
307 return (entry);
308 }
309 }
310
311 return (NULL);
312}
313
314int
315fbd_register(struct fb_info* info)
316{
317 struct fb_list_entry *entry;
318 int err, first;
319
320 first = 0;
321 if (LIST_EMPTY(&fb_list_head))
322 first++;
323
324 entry = fbd_find(info);
325 if (entry != NULL) {
326 /* XXX Update framebuffer params */
327 return (0);
328 }
329
330 err = fb_probe(info);
331 if (err)
332 return (err);
333
334 entry = malloc(sizeof(struct fb_list_entry), M_DEVBUF, M_WAITOK|M_ZERO);
335 entry->fb_info = info;
336
337 LIST_INSERT_HEAD(&fb_list_head, entry, fb_list);
338
339 err = fb_init(entry, framebuffer_dev_unit++);
340 if (err)
341 return (err);
342
343 if (first)
344 vt_fb_attach(info);
345
346 return (0);
347}
348
349int
350fbd_unregister(struct fb_info* info)
351{
352 struct fb_list_entry *entry, *tmp;
353
354 LIST_FOREACH_SAFE(entry, &fb_list_head, fb_list, tmp) {
355 if (entry->fb_info == info) {
356 LIST_REMOVE(entry, fb_list);
357 free(entry, M_DEVBUF);
358 return (0);
359 }
360 }
361
362 return (ENOENT);
363}
364
365static void
366register_fb_wrap(void *arg, void *ptr)
367{
368
369 fbd_register((struct fb_info *)ptr);
370}
371
372static void
373unregister_fb_wrap(void *arg, void *ptr)
374{
375
376 fbd_unregister((struct fb_info *)ptr);
377}
378
379static void
380fbd_evh_init(void *ctx)
381{
382
383 EVENTHANDLER_REGISTER(register_framebuffer, register_fb_wrap, NULL,
384 EVENTHANDLER_PRI_ANY);
385 EVENTHANDLER_REGISTER(unregister_framebuffer, unregister_fb_wrap, NULL,
386 EVENTHANDLER_PRI_ANY);
387}
388
389/* Newbus methods. */
390static int
391fbd_probe(device_t dev)
392{
393
394 return (BUS_PROBE_NOWILDCARD);
395}
396
397static int
398fbd_attach(device_t dev)
399{
400 struct fbd_softc *sc;
401 int err;
402
403 sc = device_get_softc(dev);
404
405 sc->sc_dev = dev;
406 sc->sc_info = FB_GETINFO(device_get_parent(dev));
407 if (sc->sc_info == NULL)
408 return (ENXIO);
409 err = fbd_register(sc->sc_info);
410
411 return (err);
412}
413
414static int
415fbd_detach(device_t dev)
416{
417 struct fbd_softc *sc;
418 int err;
419
420 sc = device_get_softc(dev);
421
422 err = fbd_unregister(sc->sc_info);
423
424 return (err);
425}
426
427static int
428fbd_suspend(device_t dev)
429{
430
431 vt_fb_suspend();
432 return (bus_generic_suspend(dev));
433}
434
435static int
436fbd_resume(device_t dev)
437{
438
439 vt_fb_resume();
440 return (bus_generic_resume(dev));
441}
442
443static device_method_t fbd_methods[] = {
444 /* Device interface */
445 DEVMETHOD(device_probe, fbd_probe),
446 DEVMETHOD(device_attach, fbd_attach),
447 DEVMETHOD(device_detach, fbd_detach),
448
449 DEVMETHOD(device_shutdown, bus_generic_shutdown),
450 DEVMETHOD(device_suspend, fbd_suspend),
451 DEVMETHOD(device_resume, fbd_resume),
452
453 { 0, 0 }
454};
455
456driver_t fbd_driver = {
457 "fbd",
458 fbd_methods,
459 sizeof(struct fbd_softc)
460};
461
462devclass_t fbd_devclass;
463
464DRIVER_MODULE(fbd, fb, fbd_driver, fbd_devclass, 0, 0);
465DRIVER_MODULE(fbd, drmn, fbd_driver, fbd_devclass, 0, 0);
466MODULE_VERSION(fbd, 1);
467
| 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 if (offset < info->fb_size) {
169 *paddr = info->fb_pbase + offset;
170 return (0);
171 }
172 return (EINVAL);
173}
174
175
176static void
177vt_fb_mem_wr1(struct fb_info *sc, uint32_t o, uint8_t v)
178{
179
180 KASSERT((o < sc->fb_size), ("Offset %#08x out of fb size", o));
181 *(uint8_t *)(sc->fb_vbase + o) = v;
182}
183
184static void
185vt_fb_mem_wr2(struct fb_info *sc, uint32_t o, uint16_t v)
186{
187
188 KASSERT((o < sc->fb_size), ("Offset %#08x out of fb size", o));
189 *(uint16_t *)(sc->fb_vbase + o) = v;
190}
191
192static void
193vt_fb_mem_wr4(struct fb_info *sc, uint32_t o, uint32_t v)
194{
195
196 KASSERT((o < sc->fb_size), ("Offset %#08x out of fb size", o));
197 *(uint32_t *)(sc->fb_vbase + o) = v;
198}
199
200static void
201vt_fb_mem_copy(struct fb_info *sc, uint32_t offset_to, uint32_t offset_from,
202 uint32_t size)
203{
204
205 memmove((void *)(sc->fb_vbase + offset_to), (void *)(sc->fb_vbase +
206 offset_from), size);
207}
208
209static void
210vt_fb_indir_wr1(struct fb_info *sc, uint32_t o, uint8_t v)
211{
212
213 KASSERT((o < sc->fb_size), ("Offset %#08x out of fb size", o));
214 sc->fb_write(sc->fb_priv, o, &v, 1);
215}
216
217static void
218vt_fb_indir_wr2(struct fb_info *sc, uint32_t o, uint16_t v)
219{
220
221 KASSERT((o < sc->fb_size), ("Offset %#08x out of fb size", o));
222 sc->fb_write(sc->fb_priv, o, &v, 2);
223}
224
225static void
226vt_fb_indir_wr4(struct fb_info *sc, uint32_t o, uint32_t v)
227{
228
229 KASSERT((o < sc->fb_size), ("Offset %#08x out of fb size", o));
230 sc->fb_write(sc->fb_priv, o, &v, 4);
231}
232
233static void
234vt_fb_indir_copy(struct fb_info *sc, uint32_t offset_to, uint32_t offset_from,
235 uint32_t size)
236{
237
238 sc->copy(sc->fb_priv, offset_to, offset_from, size);
239}
240
241int
242fb_probe(struct fb_info *info)
243{
244
245 if (info->fb_size == 0)
246 return (ENXIO);
247
248 if (info->fb_write != NULL) {
249 if (info->fb_write == NULL) {
250 return (EINVAL);
251 }
252 info->fb_flags |= FB_FLAG_NOMMAP;
253 info->wr1 = &vt_fb_indir_wr1;
254 info->wr2 = &vt_fb_indir_wr2;
255 info->wr4 = &vt_fb_indir_wr4;
256 info->copy = &vt_fb_indir_copy;
257 } else if (info->fb_vbase != 0) {
258 if (info->fb_pbase == 0)
259 info->fb_flags |= FB_FLAG_NOMMAP;
260 info->wr1 = &vt_fb_mem_wr1;
261 info->wr2 = &vt_fb_mem_wr2;
262 info->wr4 = &vt_fb_mem_wr4;
263 info->copy = &vt_fb_mem_copy;
264 } else
265 return (ENXIO);
266
267 return (0);
268}
269
270
271static int
272fb_init(struct fb_list_entry *entry, int unit)
273{
274 struct fb_info *info;
275
276 info = entry->fb_info;
277 entry->fb_si = make_dev(&fb_cdevsw, unit, UID_ROOT, GID_WHEEL,
278 0600, "fb%d", unit);
279 entry->fb_si->si_drv1 = info;
280
281 return (0);
282}
283
284int
285fbd_list()
286{
287 struct fb_list_entry *entry;
288
289 if (LIST_EMPTY(&fb_list_head))
290 return (ENOENT);
291
292 LIST_FOREACH(entry, &fb_list_head, fb_list) {
293 printf("FB %s @%p\n", entry->fb_info->fb_name,
294 (void *)entry->fb_info->fb_pbase);
295 }
296
297 return (0);
298}
299
300static struct fb_list_entry *
301fbd_find(struct fb_info* info)
302{
303 struct fb_list_entry *entry, *tmp;
304
305 LIST_FOREACH_SAFE(entry, &fb_list_head, fb_list, tmp) {
306 if (entry->fb_info == info) {
307 return (entry);
308 }
309 }
310
311 return (NULL);
312}
313
314int
315fbd_register(struct fb_info* info)
316{
317 struct fb_list_entry *entry;
318 int err, first;
319
320 first = 0;
321 if (LIST_EMPTY(&fb_list_head))
322 first++;
323
324 entry = fbd_find(info);
325 if (entry != NULL) {
326 /* XXX Update framebuffer params */
327 return (0);
328 }
329
330 err = fb_probe(info);
331 if (err)
332 return (err);
333
334 entry = malloc(sizeof(struct fb_list_entry), M_DEVBUF, M_WAITOK|M_ZERO);
335 entry->fb_info = info;
336
337 LIST_INSERT_HEAD(&fb_list_head, entry, fb_list);
338
339 err = fb_init(entry, framebuffer_dev_unit++);
340 if (err)
341 return (err);
342
343 if (first)
344 vt_fb_attach(info);
345
346 return (0);
347}
348
349int
350fbd_unregister(struct fb_info* info)
351{
352 struct fb_list_entry *entry, *tmp;
353
354 LIST_FOREACH_SAFE(entry, &fb_list_head, fb_list, tmp) {
355 if (entry->fb_info == info) {
356 LIST_REMOVE(entry, fb_list);
357 free(entry, M_DEVBUF);
358 return (0);
359 }
360 }
361
362 return (ENOENT);
363}
364
365static void
366register_fb_wrap(void *arg, void *ptr)
367{
368
369 fbd_register((struct fb_info *)ptr);
370}
371
372static void
373unregister_fb_wrap(void *arg, void *ptr)
374{
375
376 fbd_unregister((struct fb_info *)ptr);
377}
378
379static void
380fbd_evh_init(void *ctx)
381{
382
383 EVENTHANDLER_REGISTER(register_framebuffer, register_fb_wrap, NULL,
384 EVENTHANDLER_PRI_ANY);
385 EVENTHANDLER_REGISTER(unregister_framebuffer, unregister_fb_wrap, NULL,
386 EVENTHANDLER_PRI_ANY);
387}
388
389/* Newbus methods. */
390static int
391fbd_probe(device_t dev)
392{
393
394 return (BUS_PROBE_NOWILDCARD);
395}
396
397static int
398fbd_attach(device_t dev)
399{
400 struct fbd_softc *sc;
401 int err;
402
403 sc = device_get_softc(dev);
404
405 sc->sc_dev = dev;
406 sc->sc_info = FB_GETINFO(device_get_parent(dev));
407 if (sc->sc_info == NULL)
408 return (ENXIO);
409 err = fbd_register(sc->sc_info);
410
411 return (err);
412}
413
414static int
415fbd_detach(device_t dev)
416{
417 struct fbd_softc *sc;
418 int err;
419
420 sc = device_get_softc(dev);
421
422 err = fbd_unregister(sc->sc_info);
423
424 return (err);
425}
426
427static int
428fbd_suspend(device_t dev)
429{
430
431 vt_fb_suspend();
432 return (bus_generic_suspend(dev));
433}
434
435static int
436fbd_resume(device_t dev)
437{
438
439 vt_fb_resume();
440 return (bus_generic_resume(dev));
441}
442
443static device_method_t fbd_methods[] = {
444 /* Device interface */
445 DEVMETHOD(device_probe, fbd_probe),
446 DEVMETHOD(device_attach, fbd_attach),
447 DEVMETHOD(device_detach, fbd_detach),
448
449 DEVMETHOD(device_shutdown, bus_generic_shutdown),
450 DEVMETHOD(device_suspend, fbd_suspend),
451 DEVMETHOD(device_resume, fbd_resume),
452
453 { 0, 0 }
454};
455
456driver_t fbd_driver = {
457 "fbd",
458 fbd_methods,
459 sizeof(struct fbd_softc)
460};
461
462devclass_t fbd_devclass;
463
464DRIVER_MODULE(fbd, fb, fbd_driver, fbd_devclass, 0, 0);
465DRIVER_MODULE(fbd, drmn, fbd_driver, fbd_devclass, 0, 0);
466MODULE_VERSION(fbd, 1);
467
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