1/*-
2 * Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
--- 11 unchanged lines hidden (view full) ---
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 */
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/sys/arm/broadcom/bcm2835/bcm2835_fb.c 239922 2012-08-30 20:59:37Z gonzo $");
29
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/bio.h>
33#include <sys/bus.h>
34#include <sys/conf.h>
35#include <sys/endian.h>
36#include <sys/kernel.h>
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63#include <dev/fb/fbreg.h>
64#include <dev/syscons/syscons.h>
65
66#include <arm/broadcom/bcm2835/bcm2835_mbox.h>
67#include <arm/broadcom/bcm2835/bcm2835_vcbus.h>
68
69#define BCMFB_FONT_HEIGHT 16
70
71#define FB_WIDTH 640
72#define FB_HEIGHT 480
73
74struct bcm_fb_config {
75 uint32_t xres;
76 uint32_t yres;
77 uint32_t vxres;
78 uint32_t vyres;
79 uint32_t pitch;
80 uint32_t bpp;
--- 21 unchanged lines hidden (view full) ---
102 video_adapter_t va;
103 int console;
104
105 intptr_t fb_addr;
106 unsigned int fb_size;
107
108 unsigned int height;
109 unsigned int width;
110 unsigned int stride;
111
112 unsigned int xmargin;
113 unsigned int ymargin;
114
115 unsigned char *font;
116 int initialized;
117};
118
119static struct bcmsc_softc *bcmsc_softc;
120static struct video_adapter_softc va_softc;
121
122#define bcm_fb_lock(_sc) mtx_lock(&(_sc)->mtx)
123#define bcm_fb_unlock(_sc) mtx_unlock(&(_sc)->mtx)
124#define bcm_fb_lock_assert(sc) mtx_assert(&(_sc)->mtx, MA_OWNED)
125
126static int bcm_fb_probe(device_t);
127static int bcm_fb_attach(device_t);
128static void bcm_fb_dmamap_cb(void *arg, bus_dma_segment_t *segs, int nseg, int err);
129
130static void
131bcm_fb_init(void *arg)
132{
133 struct bcmsc_softc *sc = arg;
134 struct video_adapter_softc *va_sc = &va_softc;
135 int err;
136 volatile struct bcm_fb_config* fb_config = sc->fb_config;
137
138 /* TODO: replace it with FDT stuff */
139 fb_config->xres = FB_WIDTH;
140 fb_config->yres = FB_HEIGHT;
141 fb_config->vxres = 0;
142 fb_config->vyres = 0;
143 fb_config->xoffset = 0;
144 fb_config->yoffset = 0;
145 fb_config->bpp = 24;
146 fb_config->base = 0;
147 fb_config->pitch = 0;
148 fb_config->screen_size = 0;
149
150 bus_dmamap_sync(sc->dma_tag, sc->dma_map,
151 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
152 bcm_mbox_write(BCM2835_MBOX_CHAN_FB, sc->fb_config_phys);
153 bcm_mbox_read(BCM2835_MBOX_CHAN_FB, &err);
154 bus_dmamap_sync(sc->dma_tag, sc->dma_map,
155 BUS_DMASYNC_POSTREAD);
156
157 if (err == 0) {
158 device_printf(sc->dev, "%dx%d(%dx%d@%d,%d) %dbpp\n",
159 fb_config->xres, fb_config->yres,
160 fb_config->vxres, fb_config->vyres,
161 fb_config->xoffset, fb_config->yoffset,
162 fb_config->bpp);
163
164
165 device_printf(sc->dev, "pitch %d, base 0x%08x, screen_size %d\n",
166 fb_config->pitch, fb_config->base,
167 fb_config->screen_size);
168
169 if (fb_config->base) {
170 va_sc->fb_addr = (intptr_t)pmap_mapdev(fb_config->base, fb_config->screen_size);
171 va_sc->fb_size = fb_config->screen_size;
172 va_sc->stride = fb_config->pitch;
173 }
174 }
175 else
176 device_printf(sc->dev, "Failed to set framebuffer info\n");
177
178 config_intrhook_disestablish(&sc->init_hook);
179}
180
181static int
182bcm_fb_probe(device_t dev)
183{
184 int error;
185
186 if (!ofw_bus_is_compatible(dev, "broadcom,bcm2835-fb"))
187 return (ENXIO);
188
189 device_set_desc(dev, "BCM2835 framebuffer device");
190
191 error = sc_probe_unit(device_get_unit(dev),
192 device_get_flags(dev) | SC_AUTODETECT_KBD);
193
194 if (error != 0)
195 return (error);
196
197 return (BUS_PROBE_DEFAULT);
198}
199
200static int
201bcm_fb_attach(device_t dev)
202{
203 struct bcmsc_softc *sc = device_get_softc(dev);
204 int dma_size = sizeof(struct bcm_fb_config);
--- 83 unchanged lines hidden (view full) ---
288static devclass_t bcm_fb_devclass;
289
290static driver_t bcm_fb_driver = {
291 "fb",
292 bcm_fb_methods,
293 sizeof(struct bcmsc_softc),
294};
295
296DRIVER_MODULE(bcm2835fb, simplebus, bcm_fb_driver, bcm_fb_devclass, 0, 0);
297
298/*
299 * Video driver routines and glue.
300 */
301static int bcmfb_configure(int);
302static vi_probe_t bcmfb_probe;
303static vi_init_t bcmfb_init;
304static vi_get_info_t bcmfb_get_info;
305static vi_query_mode_t bcmfb_query_mode;
306static vi_set_mode_t bcmfb_set_mode;
307static vi_save_font_t bcmfb_save_font;
308static vi_load_font_t bcmfb_load_font;
309static vi_show_font_t bcmfb_show_font;
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369
370extern sc_rndr_sw_t txtrndrsw;
371RENDERER(bcmfb, 0, txtrndrsw, gfb_set);
372RENDERER_MODULE(bcmfb, gfb_set);
373
374static uint16_t bcmfb_static_window[ROW*COL];
375extern u_char dflt_font_16[];
376
377static int
378bcmfb_configure(int flags)
379{
380 struct video_adapter_softc *sc;
381
382 sc = &va_softc;
383
384 if (sc->initialized)
385 return 0;
386
387 sc->height = FB_HEIGHT;
388 sc->width = FB_WIDTH;
389
390 bcmfb_init(0, &sc->va, 0);
391
392 sc->initialized = 1;
393
394 return (0);
395}
396
397static int
398bcmfb_probe(int unit, video_adapter_t **adp, void *arg, int flags)
399{
400
401 return (0);
--- 8 unchanged lines hidden (view full) ---
410 sc = (struct video_adapter_softc *)adp;
411 vi = &adp->va_info;
412
413 vid_init_struct(adp, "bcmfb", -1, unit);
414
415 sc->font = dflt_font_16;
416 vi->vi_cheight = BCMFB_FONT_HEIGHT;
417 vi->vi_cwidth = 8;
418 vi->vi_width = sc->width/8;
419 vi->vi_height = sc->height/vi->vi_cheight;
420
421 /*
422 * Clamp width/height to syscons maximums
423 */
424 if (vi->vi_width > COL)
425 vi->vi_width = COL;
426 if (vi->vi_height > ROW)
427 vi->vi_height = ROW;
428
429 sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
430 sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight))/2;
431
432 adp->va_window = (vm_offset_t) bcmfb_static_window;
433 adp->va_flags |= V_ADP_FONT /* | V_ADP_COLOR | V_ADP_MODECHANGE */;
434
435 vid_register(&sc->va);
436
437 return (0);
438}
439
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536{
537 return (0);
538}
539
540static int
541bcmfb_blank_display(video_adapter_t *adp, int mode)
542{
543
544 return (0);
545}
546
547static int
548bcmfb_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
549 int prot, vm_memattr_t *memattr)
550{
551 struct video_adapter_softc *sc;
--- 81 unchanged lines hidden (view full) ---
633{
634 struct video_adapter_softc *sc;
635 int row;
636 int col;
637 int i, j, k;
638 uint8_t *addr;
639 u_char *p;
640 uint8_t fg, bg, color;
641
642 sc = (struct video_adapter_softc *)adp;
643
644 if (sc->fb_addr == 0)
645 return (0);
646
647 row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
648 col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
649 p = sc->font + c*BCMFB_FONT_HEIGHT;
650 addr = (uint8_t *)sc->fb_addr
651 + (row + sc->ymargin)*(sc->stride)
652 + 3 * (col + sc->xmargin);
653
654 /*
655 * FIXME: hardcoded
656 */
657 bg = 0x00;
658 fg = 0x80;
659
660 for (i = 0; i < BCMFB_FONT_HEIGHT; i++) {
661 for (j = 0, k = 7; j < 8; j++, k--) {
662 if ((p[i] & (1 << k)) == 0)
663 color = bg;
664 else
665 color = fg;
666
667 addr[3*j] = color;
668 addr[3*j+1] = color;
669 addr[3*j+2] = color;
670 }
671
672 addr += (sc->stride);
673 }
674
675 return (0);
676}
677
--- 37 unchanged lines hidden ---
2 * Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
--- 11 unchanged lines hidden (view full) ---
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 */
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/sys/arm/broadcom/bcm2835/bcm2835_fb.c 239922 2012-08-30 20:59:37Z gonzo $");
29
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/bio.h>
33#include <sys/bus.h>
34#include <sys/conf.h>
35#include <sys/endian.h>
36#include <sys/kernel.h>
--- 26 unchanged lines hidden (view full) ---
63#include <dev/fb/fbreg.h>
64#include <dev/syscons/syscons.h>
65
66#include <arm/broadcom/bcm2835/bcm2835_mbox.h>
67#include <arm/broadcom/bcm2835/bcm2835_vcbus.h>
68
69#define BCMFB_FONT_HEIGHT 16
70
71#define FB_WIDTH 640
72#define FB_HEIGHT 480
73
74struct bcm_fb_config {
75 uint32_t xres;
76 uint32_t yres;
77 uint32_t vxres;
78 uint32_t vyres;
79 uint32_t pitch;
80 uint32_t bpp;
--- 21 unchanged lines hidden (view full) ---
102 video_adapter_t va;
103 int console;
104
105 intptr_t fb_addr;
106 unsigned int fb_size;
107
108 unsigned int height;
109 unsigned int width;
110 unsigned int stride;
111
112 unsigned int xmargin;
113 unsigned int ymargin;
114
115 unsigned char *font;
116 int initialized;
117};
118
119static struct bcmsc_softc *bcmsc_softc;
120static struct video_adapter_softc va_softc;
121
122#define bcm_fb_lock(_sc) mtx_lock(&(_sc)->mtx)
123#define bcm_fb_unlock(_sc) mtx_unlock(&(_sc)->mtx)
124#define bcm_fb_lock_assert(sc) mtx_assert(&(_sc)->mtx, MA_OWNED)
125
126static int bcm_fb_probe(device_t);
127static int bcm_fb_attach(device_t);
128static void bcm_fb_dmamap_cb(void *arg, bus_dma_segment_t *segs, int nseg, int err);
129
130static void
131bcm_fb_init(void *arg)
132{
133 struct bcmsc_softc *sc = arg;
134 struct video_adapter_softc *va_sc = &va_softc;
135 int err;
136 volatile struct bcm_fb_config* fb_config = sc->fb_config;
137
138 /* TODO: replace it with FDT stuff */
139 fb_config->xres = FB_WIDTH;
140 fb_config->yres = FB_HEIGHT;
141 fb_config->vxres = 0;
142 fb_config->vyres = 0;
143 fb_config->xoffset = 0;
144 fb_config->yoffset = 0;
145 fb_config->bpp = 24;
146 fb_config->base = 0;
147 fb_config->pitch = 0;
148 fb_config->screen_size = 0;
149
150 bus_dmamap_sync(sc->dma_tag, sc->dma_map,
151 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
152 bcm_mbox_write(BCM2835_MBOX_CHAN_FB, sc->fb_config_phys);
153 bcm_mbox_read(BCM2835_MBOX_CHAN_FB, &err);
154 bus_dmamap_sync(sc->dma_tag, sc->dma_map,
155 BUS_DMASYNC_POSTREAD);
156
157 if (err == 0) {
158 device_printf(sc->dev, "%dx%d(%dx%d@%d,%d) %dbpp\n",
159 fb_config->xres, fb_config->yres,
160 fb_config->vxres, fb_config->vyres,
161 fb_config->xoffset, fb_config->yoffset,
162 fb_config->bpp);
163
164
165 device_printf(sc->dev, "pitch %d, base 0x%08x, screen_size %d\n",
166 fb_config->pitch, fb_config->base,
167 fb_config->screen_size);
168
169 if (fb_config->base) {
170 va_sc->fb_addr = (intptr_t)pmap_mapdev(fb_config->base, fb_config->screen_size);
171 va_sc->fb_size = fb_config->screen_size;
172 va_sc->stride = fb_config->pitch;
173 }
174 }
175 else
176 device_printf(sc->dev, "Failed to set framebuffer info\n");
177
178 config_intrhook_disestablish(&sc->init_hook);
179}
180
181static int
182bcm_fb_probe(device_t dev)
183{
184 int error;
185
186 if (!ofw_bus_is_compatible(dev, "broadcom,bcm2835-fb"))
187 return (ENXIO);
188
189 device_set_desc(dev, "BCM2835 framebuffer device");
190
191 error = sc_probe_unit(device_get_unit(dev),
192 device_get_flags(dev) | SC_AUTODETECT_KBD);
193
194 if (error != 0)
195 return (error);
196
197 return (BUS_PROBE_DEFAULT);
198}
199
200static int
201bcm_fb_attach(device_t dev)
202{
203 struct bcmsc_softc *sc = device_get_softc(dev);
204 int dma_size = sizeof(struct bcm_fb_config);
--- 83 unchanged lines hidden (view full) ---
288static devclass_t bcm_fb_devclass;
289
290static driver_t bcm_fb_driver = {
291 "fb",
292 bcm_fb_methods,
293 sizeof(struct bcmsc_softc),
294};
295
296DRIVER_MODULE(bcm2835fb, simplebus, bcm_fb_driver, bcm_fb_devclass, 0, 0);
297
298/*
299 * Video driver routines and glue.
300 */
301static int bcmfb_configure(int);
302static vi_probe_t bcmfb_probe;
303static vi_init_t bcmfb_init;
304static vi_get_info_t bcmfb_get_info;
305static vi_query_mode_t bcmfb_query_mode;
306static vi_set_mode_t bcmfb_set_mode;
307static vi_save_font_t bcmfb_save_font;
308static vi_load_font_t bcmfb_load_font;
309static vi_show_font_t bcmfb_show_font;
--- 59 unchanged lines hidden (view full) ---
369
370extern sc_rndr_sw_t txtrndrsw;
371RENDERER(bcmfb, 0, txtrndrsw, gfb_set);
372RENDERER_MODULE(bcmfb, gfb_set);
373
374static uint16_t bcmfb_static_window[ROW*COL];
375extern u_char dflt_font_16[];
376
377static int
378bcmfb_configure(int flags)
379{
380 struct video_adapter_softc *sc;
381
382 sc = &va_softc;
383
384 if (sc->initialized)
385 return 0;
386
387 sc->height = FB_HEIGHT;
388 sc->width = FB_WIDTH;
389
390 bcmfb_init(0, &sc->va, 0);
391
392 sc->initialized = 1;
393
394 return (0);
395}
396
397static int
398bcmfb_probe(int unit, video_adapter_t **adp, void *arg, int flags)
399{
400
401 return (0);
--- 8 unchanged lines hidden (view full) ---
410 sc = (struct video_adapter_softc *)adp;
411 vi = &adp->va_info;
412
413 vid_init_struct(adp, "bcmfb", -1, unit);
414
415 sc->font = dflt_font_16;
416 vi->vi_cheight = BCMFB_FONT_HEIGHT;
417 vi->vi_cwidth = 8;
418 vi->vi_width = sc->width/8;
419 vi->vi_height = sc->height/vi->vi_cheight;
420
421 /*
422 * Clamp width/height to syscons maximums
423 */
424 if (vi->vi_width > COL)
425 vi->vi_width = COL;
426 if (vi->vi_height > ROW)
427 vi->vi_height = ROW;
428
429 sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
430 sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight))/2;
431
432 adp->va_window = (vm_offset_t) bcmfb_static_window;
433 adp->va_flags |= V_ADP_FONT /* | V_ADP_COLOR | V_ADP_MODECHANGE */;
434
435 vid_register(&sc->va);
436
437 return (0);
438}
439
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536{
537 return (0);
538}
539
540static int
541bcmfb_blank_display(video_adapter_t *adp, int mode)
542{
543
544 return (0);
545}
546
547static int
548bcmfb_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
549 int prot, vm_memattr_t *memattr)
550{
551 struct video_adapter_softc *sc;
--- 81 unchanged lines hidden (view full) ---
633{
634 struct video_adapter_softc *sc;
635 int row;
636 int col;
637 int i, j, k;
638 uint8_t *addr;
639 u_char *p;
640 uint8_t fg, bg, color;
641
642 sc = (struct video_adapter_softc *)adp;
643
644 if (sc->fb_addr == 0)
645 return (0);
646
647 row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
648 col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
649 p = sc->font + c*BCMFB_FONT_HEIGHT;
650 addr = (uint8_t *)sc->fb_addr
651 + (row + sc->ymargin)*(sc->stride)
652 + 3 * (col + sc->xmargin);
653
654 /*
655 * FIXME: hardcoded
656 */
657 bg = 0x00;
658 fg = 0x80;
659
660 for (i = 0; i < BCMFB_FONT_HEIGHT; i++) {
661 for (j = 0, k = 7; j < 8; j++, k--) {
662 if ((p[i] & (1 << k)) == 0)
663 color = bg;
664 else
665 color = fg;
666
667 addr[3*j] = color;
668 addr[3*j+1] = color;
669 addr[3*j+2] = color;
670 }
671
672 addr += (sc->stride);
673 }
674
675 return (0);
676}
677
--- 37 unchanged lines hidden ---