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bcm2835_fbd.c (257702) bcm2835_fbd.c (259517)
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>
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 257702 2013-11-05 13:48:34Z nwhitehorn $");
28__FBSDID("$FreeBSD: head/sys/arm/broadcom/bcm2835/bcm2835_fbd.c 259517 2013-12-17 15:23:47Z ray $");
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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55#include <machine/resource.h>
56#include <machine/intr.h>
57
58#include <dev/fdt/fdt_common.h>
59#include <dev/ofw/ofw_bus.h>
60#include <dev/ofw/ofw_bus_subr.h>
61
62#include <dev/fb/fbreg.h>
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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55#include <machine/resource.h>
56#include <machine/intr.h>
57
58#include <dev/fdt/fdt_common.h>
59#include <dev/ofw/ofw_bus.h>
60#include <dev/ofw/ofw_bus_subr.h>
61
62#include <dev/fb/fbreg.h>
63#include <dev/syscons/syscons.h>
63#include <dev/vt/vt.h>
64
65#include <arm/broadcom/bcm2835/bcm2835_mbox.h>
66#include <arm/broadcom/bcm2835/bcm2835_vcbus.h>
67
64
65#include <arm/broadcom/bcm2835/bcm2835_mbox.h>
66#include <arm/broadcom/bcm2835/bcm2835_vcbus.h>
67
68#include "fb_if.h"
68#include "mbox_if.h"
69
69#include "mbox_if.h"
70
70#define BCMFB_FONT_HEIGHT 16
71
72struct argb {
73 uint8_t a;
74 uint8_t r;
75 uint8_t g;
76 uint8_t b;
77};
78
79static struct argb bcmfb_palette[16] = {
80 {0x00, 0x00, 0x00, 0x00},
81 {0x00, 0x00, 0x00, 0xaa},
82 {0x00, 0x00, 0xaa, 0x00},
83 {0x00, 0x00, 0xaa, 0xaa},
84 {0x00, 0xaa, 0x00, 0x00},
85 {0x00, 0xaa, 0x00, 0xaa},
86 {0x00, 0xaa, 0x55, 0x00},
87 {0x00, 0xaa, 0xaa, 0xaa},
88 {0x00, 0x55, 0x55, 0x55},
89 {0x00, 0x55, 0x55, 0xff},
90 {0x00, 0x55, 0xff, 0x55},
91 {0x00, 0x55, 0xff, 0xff},
92 {0x00, 0xff, 0x55, 0x55},
93 {0x00, 0xff, 0x55, 0xff},
94 {0x00, 0xff, 0xff, 0x55},
95 {0x00, 0xff, 0xff, 0xff}
96};
97
98/* mouse pointer from dev/syscons/scgfbrndr.c */
99static u_char mouse_pointer[16] = {
100 0x00, 0x40, 0x60, 0x70, 0x78, 0x7c, 0x7e, 0x68,
101 0x0c, 0x0c, 0x06, 0x06, 0x00, 0x00, 0x00, 0x00
102};
103
104#define FB_WIDTH 640
105#define FB_HEIGHT 480
106#define FB_DEPTH 24
107
108struct bcm_fb_config {
109 uint32_t xres;
110 uint32_t yres;
111 uint32_t vxres;

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116 uint32_t yoffset;
117 /* Filled by videocore */
118 uint32_t base;
119 uint32_t screen_size;
120};
121
122struct bcmsc_softc {
123 device_t dev;
71#define FB_WIDTH 640
72#define FB_HEIGHT 480
73#define FB_DEPTH 24
74
75struct bcm_fb_config {
76 uint32_t xres;
77 uint32_t yres;
78 uint32_t vxres;

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83 uint32_t yoffset;
84 /* Filled by videocore */
85 uint32_t base;
86 uint32_t screen_size;
87};
88
89struct bcmsc_softc {
90 device_t dev;
124 struct cdev * cdev;
125 struct mtx mtx;
91 struct fb_info *info;
126 bus_dma_tag_t dma_tag;
127 bus_dmamap_t dma_map;
128 struct bcm_fb_config* fb_config;
129 bus_addr_t fb_config_phys;
130 struct intr_config_hook init_hook;
131
132};
133
92 bus_dma_tag_t dma_tag;
93 bus_dmamap_t dma_map;
94 struct bcm_fb_config* fb_config;
95 bus_addr_t fb_config_phys;
96 struct intr_config_hook init_hook;
97
98};
99
134struct video_adapter_softc {
135 /* Videoadpater part */
136 video_adapter_t va;
137 int console;
138
139 intptr_t fb_addr;
140 intptr_t fb_paddr;
141 unsigned int fb_size;
142
143 unsigned int height;
144 unsigned int width;
145 unsigned int depth;
146 unsigned int stride;
147
148 unsigned int xmargin;
149 unsigned int ymargin;
150
151 unsigned char *font;
152 int initialized;
153};
154
155static struct bcmsc_softc *bcmsc_softc;
156static struct video_adapter_softc va_softc;
157
158#define bcm_fb_lock(_sc) mtx_lock(&(_sc)->mtx)
159#define bcm_fb_unlock(_sc) mtx_unlock(&(_sc)->mtx)
160#define bcm_fb_lock_assert(sc) mtx_assert(&(_sc)->mtx, MA_OWNED)
161
162static int bcm_fb_probe(device_t);
163static int bcm_fb_attach(device_t);
164static void bcm_fb_dmamap_cb(void *arg, bus_dma_segment_t *segs, int nseg, int err);
100static int bcm_fb_probe(device_t);
101static int bcm_fb_attach(device_t);
102static void bcm_fb_dmamap_cb(void *arg, bus_dma_segment_t *segs, int nseg, int err);
165static void bcmfb_update_margins(video_adapter_t *adp);
166static int bcmfb_configure(int);
167
168static void
169bcm_fb_init(void *arg)
170{
171 struct bcmsc_softc *sc = arg;
103
104static void
105bcm_fb_init(void *arg)
106{
107 struct bcmsc_softc *sc = arg;
172 struct video_adapter_softc *va_sc = &va_softc;
173 int err;
174 volatile struct bcm_fb_config* fb_config = sc->fb_config;
108 volatile struct bcm_fb_config* fb_config = sc->fb_config;
109 struct fb_info *info;
175 phandle_t node;
176 pcell_t cell;
177 device_t mbox;
110 phandle_t node;
111 pcell_t cell;
112 device_t mbox;
113 device_t fbd;
114 int err = 0;
178
179 node = ofw_bus_get_node(sc->dev);
180
181 fb_config->xres = 0;
182 fb_config->yres = 0;
183 fb_config->bpp = 0;
115
116 node = ofw_bus_get_node(sc->dev);
117
118 fb_config->xres = 0;
119 fb_config->yres = 0;
120 fb_config->bpp = 0;
121 fb_config->vxres = 0;
122 fb_config->vyres = 0;
123 fb_config->xoffset = 0;
124 fb_config->yoffset = 0;
125 fb_config->base = 0;
126 fb_config->pitch = 0;
127 fb_config->screen_size = 0;
184
185 if ((OF_getprop(node, "broadcom,width", &cell, sizeof(cell))) > 0)
186 fb_config->xres = (int)fdt32_to_cpu(cell);
187 if (fb_config->xres == 0)
188 fb_config->xres = FB_WIDTH;
189
190 if ((OF_getprop(node, "broadcom,height", &cell, sizeof(cell))) > 0)
191 fb_config->yres = (uint32_t)fdt32_to_cpu(cell);
192 if (fb_config->yres == 0)
193 fb_config->yres = FB_HEIGHT;
194
195 if ((OF_getprop(node, "broadcom,depth", &cell, sizeof(cell))) > 0)
196 fb_config->bpp = (uint32_t)fdt32_to_cpu(cell);
197 if (fb_config->bpp == 0)
198 fb_config->bpp = FB_DEPTH;
199
128
129 if ((OF_getprop(node, "broadcom,width", &cell, sizeof(cell))) > 0)
130 fb_config->xres = (int)fdt32_to_cpu(cell);
131 if (fb_config->xres == 0)
132 fb_config->xres = FB_WIDTH;
133
134 if ((OF_getprop(node, "broadcom,height", &cell, sizeof(cell))) > 0)
135 fb_config->yres = (uint32_t)fdt32_to_cpu(cell);
136 if (fb_config->yres == 0)
137 fb_config->yres = FB_HEIGHT;
138
139 if ((OF_getprop(node, "broadcom,depth", &cell, sizeof(cell))) > 0)
140 fb_config->bpp = (uint32_t)fdt32_to_cpu(cell);
141 if (fb_config->bpp == 0)
142 fb_config->bpp = FB_DEPTH;
143
200 fb_config->vxres = 0;
201 fb_config->vyres = 0;
202 fb_config->xoffset = 0;
203 fb_config->yoffset = 0;
204 fb_config->base = 0;
205 fb_config->pitch = 0;
206 fb_config->screen_size = 0;
207
208 bus_dmamap_sync(sc->dma_tag, sc->dma_map,
209 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
210
211 mbox = devclass_get_device(devclass_find("mbox"), 0);
212 if (mbox) {
213 MBOX_WRITE(mbox, BCM2835_MBOX_CHAN_FB, sc->fb_config_phys);
214 MBOX_READ(mbox, BCM2835_MBOX_CHAN_FB, &err);
215 }

--- 7 unchanged lines hidden (view full) ---

223 fb_config->xoffset, fb_config->yoffset,
224 fb_config->bpp);
225
226
227 device_printf(sc->dev, "pitch %d, base 0x%08x, screen_size %d\n",
228 fb_config->pitch, fb_config->base,
229 fb_config->screen_size);
230
144 bus_dmamap_sync(sc->dma_tag, sc->dma_map,
145 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
146
147 mbox = devclass_get_device(devclass_find("mbox"), 0);
148 if (mbox) {
149 MBOX_WRITE(mbox, BCM2835_MBOX_CHAN_FB, sc->fb_config_phys);
150 MBOX_READ(mbox, BCM2835_MBOX_CHAN_FB, &err);
151 }

--- 7 unchanged lines hidden (view full) ---

159 fb_config->xoffset, fb_config->yoffset,
160 fb_config->bpp);
161
162
163 device_printf(sc->dev, "pitch %d, base 0x%08x, screen_size %d\n",
164 fb_config->pitch, fb_config->base,
165 fb_config->screen_size);
166
231 va_sc->fb_addr = (intptr_t)pmap_mapdev(fb_config->base, fb_config->screen_size);
232 va_sc->fb_paddr = fb_config->base;
233 va_sc->fb_size = fb_config->screen_size;
234 va_sc->depth = fb_config->bpp;
235 va_sc->stride = fb_config->pitch;
236
167
237 va_sc->width = fb_config->xres;
238 va_sc->height = fb_config->yres;
239 bcmfb_update_margins(&va_sc->va);
240 }
241 else {
168
169
170 info = malloc(sizeof(struct fb_info), M_DEVBUF, M_WAITOK | M_ZERO);
171 info->fb_name = device_get_nameunit(sc->dev);
172 info->fb_vbase = (intptr_t)pmap_mapdev(fb_config->base, fb_config->screen_size);
173 info->fb_pbase = fb_config->base;
174 info->fb_size = fb_config->screen_size;
175 info->fb_bpp = info->fb_depth = fb_config->bpp;
176 info->fb_stride = fb_config->pitch;
177 info->fb_width = fb_config->xres;
178 info->fb_height = fb_config->yres;
179
180 sc->info = info;
181
182 fbd = device_add_child(sc->dev, "fbd", device_get_unit(sc->dev));
183 if (fbd == NULL) {
184 device_printf(sc->dev, "Failed to add fbd child\n");
185 return;
186 }
187 if (device_probe_and_attach(fbd) != 0) {
188 device_printf(sc->dev, "Failed to attach fbd device\n");
189 return;
190 }
191
192
193 } else {
242 device_printf(sc->dev, "Failed to set framebuffer info\n");
243 return;
244 }
245
246 config_intrhook_disestablish(&sc->init_hook);
247}
248
249static int
250bcm_fb_probe(device_t dev)
251{
194 device_printf(sc->dev, "Failed to set framebuffer info\n");
195 return;
196 }
197
198 config_intrhook_disestablish(&sc->init_hook);
199}
200
201static int
202bcm_fb_probe(device_t dev)
203{
252 int error = 0;
253
254 if (!ofw_bus_is_compatible(dev, "broadcom,bcm2835-fb"))
255 return (ENXIO);
256
204 if (!ofw_bus_is_compatible(dev, "broadcom,bcm2835-fb"))
205 return (ENXIO);
206
257 device_set_desc(dev, "BCM2835 framebuffer device");
207 device_set_desc(dev, "BCM2835 VT framebuffer driver");
258
208
259 error = sc_probe_unit(device_get_unit(dev),
260 device_get_flags(dev) | SC_AUTODETECT_KBD);
261 if (error != 0)
262 return (error);
263
264
265 return (BUS_PROBE_DEFAULT);
266}
267
268static int
269bcm_fb_attach(device_t dev)
270{
271 struct bcmsc_softc *sc = device_get_softc(dev);
272 int dma_size = sizeof(struct bcm_fb_config);
273 int err;
274
209 return (BUS_PROBE_DEFAULT);
210}
211
212static int
213bcm_fb_attach(device_t dev)
214{
215 struct bcmsc_softc *sc = device_get_softc(dev);
216 int dma_size = sizeof(struct bcm_fb_config);
217 int err;
218
275 if (bcmsc_softc)
276 return (ENXIO);
277
278 bcmsc_softc = sc;
279
280 sc->dev = dev;
219 sc->dev = dev;
281 mtx_init(&sc->mtx, "bcm2835fb", "fb", MTX_DEF);
282
283 err = bus_dma_tag_create(
284 bus_get_dma_tag(sc->dev),
285 PAGE_SIZE, 0, /* alignment, boundary */
286 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
287 BUS_SPACE_MAXADDR, /* highaddr */
288 NULL, NULL, /* filter, filterarg */
289 dma_size, 1, /* maxsize, nsegments */
290 dma_size, 0, /* maxsegsize, flags */
291 NULL, NULL, /* lockfunc, lockarg */
292 &sc->dma_tag);
293
220
221 err = bus_dma_tag_create(
222 bus_get_dma_tag(sc->dev),
223 PAGE_SIZE, 0, /* alignment, boundary */
224 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
225 BUS_SPACE_MAXADDR, /* highaddr */
226 NULL, NULL, /* filter, filterarg */
227 dma_size, 1, /* maxsize, nsegments */
228 dma_size, 0, /* maxsegsize, flags */
229 NULL, NULL, /* lockfunc, lockarg */
230 &sc->dma_tag);
231
294 err = bus_dmamem_alloc(sc->dma_tag, (void **)&sc->fb_config,
295 0, &sc->dma_map);
232 err = bus_dmamem_alloc(sc->dma_tag, (void **)&sc->fb_config, 0,
233 &sc->dma_map);
296 if (err) {
297 device_printf(dev, "cannot allocate framebuffer\n");
298 goto fail;
299 }
300
301 err = bus_dmamap_load(sc->dma_tag, sc->dma_map, sc->fb_config,
302 dma_size, bcm_fb_dmamap_cb, &sc->fb_config_phys, BUS_DMA_NOWAIT);
303
304 if (err) {
305 device_printf(dev, "cannot load DMA map\n");
306 goto fail;
307 }
308
234 if (err) {
235 device_printf(dev, "cannot allocate framebuffer\n");
236 goto fail;
237 }
238
239 err = bus_dmamap_load(sc->dma_tag, sc->dma_map, sc->fb_config,
240 dma_size, bcm_fb_dmamap_cb, &sc->fb_config_phys, BUS_DMA_NOWAIT);
241
242 if (err) {
243 device_printf(dev, "cannot load DMA map\n");
244 goto fail;
245 }
246
309 err = (sc_attach_unit(device_get_unit(dev),
310 device_get_flags(dev) | SC_AUTODETECT_KBD));
311
312 if (err) {
313 device_printf(dev, "failed to attach syscons\n");
314 goto fail;
315 }
316
317 /*
318 * We have to wait until interrupts are enabled.
319 * Mailbox relies on it to get data from VideoCore
320 */
321 sc->init_hook.ich_func = bcm_fb_init;
322 sc->init_hook.ich_arg = sc;
323
324 if (config_intrhook_establish(&sc->init_hook) != 0) {

--- 15 unchanged lines hidden (view full) ---

340
341 if (err)
342 return;
343
344 addr = (bus_addr_t*)arg;
345 *addr = PHYS_TO_VCBUS(segs[0].ds_addr);
346}
347
247 /*
248 * We have to wait until interrupts are enabled.
249 * Mailbox relies on it to get data from VideoCore
250 */
251 sc->init_hook.ich_func = bcm_fb_init;
252 sc->init_hook.ich_arg = sc;
253
254 if (config_intrhook_establish(&sc->init_hook) != 0) {

--- 15 unchanged lines hidden (view full) ---

270
271 if (err)
272 return;
273
274 addr = (bus_addr_t*)arg;
275 *addr = PHYS_TO_VCBUS(segs[0].ds_addr);
276}
277
278static struct fb_info *
279bcm_fb_helper_getinfo(device_t dev)
280{
281 struct bcmsc_softc *sc;
282
283 sc = device_get_softc(dev);
284
285 return (sc->info);
286}
287
348static device_method_t bcm_fb_methods[] = {
349 /* Device interface */
350 DEVMETHOD(device_probe, bcm_fb_probe),
351 DEVMETHOD(device_attach, bcm_fb_attach),
352
288static device_method_t bcm_fb_methods[] = {
289 /* Device interface */
290 DEVMETHOD(device_probe, bcm_fb_probe),
291 DEVMETHOD(device_attach, bcm_fb_attach),
292
353 { 0, 0 }
293 /* Framebuffer service methods */
294 DEVMETHOD(fb_getinfo, bcm_fb_helper_getinfo),
295
296 DEVMETHOD_END
354};
355
356static devclass_t bcm_fb_devclass;
357
358static driver_t bcm_fb_driver = {
359 "fb",
360 bcm_fb_methods,
361 sizeof(struct bcmsc_softc),
362};
363
364DRIVER_MODULE(bcm2835fb, nexus, bcm_fb_driver, bcm_fb_devclass, 0, 0);
297};
298
299static devclass_t bcm_fb_devclass;
300
301static driver_t bcm_fb_driver = {
302 "fb",
303 bcm_fb_methods,
304 sizeof(struct bcmsc_softc),
305};
306
307DRIVER_MODULE(bcm2835fb, nexus, bcm_fb_driver, bcm_fb_devclass, 0, 0);
365
366/*
367 * Video driver routines and glue.
368 */
369static vi_probe_t bcmfb_probe;
370static vi_init_t bcmfb_init;
371static vi_get_info_t bcmfb_get_info;
372static vi_query_mode_t bcmfb_query_mode;
373static vi_set_mode_t bcmfb_set_mode;
374static vi_save_font_t bcmfb_save_font;
375static vi_load_font_t bcmfb_load_font;
376static vi_show_font_t bcmfb_show_font;
377static vi_save_palette_t bcmfb_save_palette;
378static vi_load_palette_t bcmfb_load_palette;
379static vi_set_border_t bcmfb_set_border;
380static vi_save_state_t bcmfb_save_state;
381static vi_load_state_t bcmfb_load_state;
382static vi_set_win_org_t bcmfb_set_win_org;
383static vi_read_hw_cursor_t bcmfb_read_hw_cursor;
384static vi_set_hw_cursor_t bcmfb_set_hw_cursor;
385static vi_set_hw_cursor_shape_t bcmfb_set_hw_cursor_shape;
386static vi_blank_display_t bcmfb_blank_display;
387static vi_mmap_t bcmfb_mmap;
388static vi_ioctl_t bcmfb_ioctl;
389static vi_clear_t bcmfb_clear;
390static vi_fill_rect_t bcmfb_fill_rect;
391static vi_bitblt_t bcmfb_bitblt;
392static vi_diag_t bcmfb_diag;
393static vi_save_cursor_palette_t bcmfb_save_cursor_palette;
394static vi_load_cursor_palette_t bcmfb_load_cursor_palette;
395static vi_copy_t bcmfb_copy;
396static vi_putp_t bcmfb_putp;
397static vi_putc_t bcmfb_putc;
398static vi_puts_t bcmfb_puts;
399static vi_putm_t bcmfb_putm;
400
401static video_switch_t bcmfbvidsw = {
402 .probe = bcmfb_probe,
403 .init = bcmfb_init,
404 .get_info = bcmfb_get_info,
405 .query_mode = bcmfb_query_mode,
406 .set_mode = bcmfb_set_mode,
407 .save_font = bcmfb_save_font,
408 .load_font = bcmfb_load_font,
409 .show_font = bcmfb_show_font,
410 .save_palette = bcmfb_save_palette,
411 .load_palette = bcmfb_load_palette,
412 .set_border = bcmfb_set_border,
413 .save_state = bcmfb_save_state,
414 .load_state = bcmfb_load_state,
415 .set_win_org = bcmfb_set_win_org,
416 .read_hw_cursor = bcmfb_read_hw_cursor,
417 .set_hw_cursor = bcmfb_set_hw_cursor,
418 .set_hw_cursor_shape = bcmfb_set_hw_cursor_shape,
419 .blank_display = bcmfb_blank_display,
420 .mmap = bcmfb_mmap,
421 .ioctl = bcmfb_ioctl,
422 .clear = bcmfb_clear,
423 .fill_rect = bcmfb_fill_rect,
424 .bitblt = bcmfb_bitblt,
425 .diag = bcmfb_diag,
426 .save_cursor_palette = bcmfb_save_cursor_palette,
427 .load_cursor_palette = bcmfb_load_cursor_palette,
428 .copy = bcmfb_copy,
429 .putp = bcmfb_putp,
430 .putc = bcmfb_putc,
431 .puts = bcmfb_puts,
432 .putm = bcmfb_putm,
433};
434
435VIDEO_DRIVER(bcmfb, bcmfbvidsw, bcmfb_configure);
436
437static vr_init_t bcmrend_init;
438static vr_clear_t bcmrend_clear;
439static vr_draw_border_t bcmrend_draw_border;
440static vr_draw_t bcmrend_draw;
441static vr_set_cursor_t bcmrend_set_cursor;
442static vr_draw_cursor_t bcmrend_draw_cursor;
443static vr_blink_cursor_t bcmrend_blink_cursor;
444static vr_set_mouse_t bcmrend_set_mouse;
445static vr_draw_mouse_t bcmrend_draw_mouse;
446
447/*
448 * We use our own renderer; this is because we must emulate a hardware
449 * cursor.
450 */
451static sc_rndr_sw_t bcmrend = {
452 bcmrend_init,
453 bcmrend_clear,
454 bcmrend_draw_border,
455 bcmrend_draw,
456 bcmrend_set_cursor,
457 bcmrend_draw_cursor,
458 bcmrend_blink_cursor,
459 bcmrend_set_mouse,
460 bcmrend_draw_mouse
461};
462
463RENDERER(bcmfb, 0, bcmrend, gfb_set);
464RENDERER_MODULE(bcmfb, gfb_set);
465
466static void
467bcmrend_init(scr_stat* scp)
468{
469}
470
471static void
472bcmrend_clear(scr_stat* scp, int c, int attr)
473{
474}
475
476static void
477bcmrend_draw_border(scr_stat* scp, int color)
478{
479}
480
481static void
482bcmrend_draw(scr_stat* scp, int from, int count, int flip)
483{
484 video_adapter_t* adp = scp->sc->adp;
485 int i, c, a;
486
487 if (!flip) {
488 /* Normal printing */
489 vidd_puts(adp, from, (uint16_t*)sc_vtb_pointer(&scp->vtb, from), count);
490 } else {
491 /* This is for selections and such: invert the color attribute */
492 for (i = count; i-- > 0; ++from) {
493 c = sc_vtb_getc(&scp->vtb, from);
494 a = sc_vtb_geta(&scp->vtb, from) >> 8;
495 vidd_putc(adp, from, c, (a >> 4) | ((a & 0xf) << 4));
496 }
497 }
498}
499
500static void
501bcmrend_set_cursor(scr_stat* scp, int base, int height, int blink)
502{
503}
504
505static void
506bcmrend_draw_cursor(scr_stat* scp, int off, int blink, int on, int flip)
507{
508 video_adapter_t* adp = scp->sc->adp;
509 struct video_adapter_softc *sc;
510 int row, col;
511 uint8_t *addr;
512 int i, j, bytes;
513
514 sc = (struct video_adapter_softc *)adp;
515
516 if (scp->curs_attr.height <= 0)
517 return;
518
519 if (sc->fb_addr == 0)
520 return;
521
522 if (off >= adp->va_info.vi_width * adp->va_info.vi_height)
523 return;
524
525 /* calculate the coordinates in the video buffer */
526 row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
527 col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
528
529 addr = (uint8_t *)sc->fb_addr
530 + (row + sc->ymargin)*(sc->stride)
531 + (sc->depth/8) * (col + sc->xmargin);
532
533 bytes = sc->depth/8;
534
535 /* our cursor consists of simply inverting the char under it */
536 for (i = 0; i < adp->va_info.vi_cheight; i++) {
537 for (j = 0; j < adp->va_info.vi_cwidth; j++) {
538 switch (sc->depth) {
539 case 32:
540 case 24:
541 addr[bytes*j + 2] ^= 0xff;
542 /* FALLTHROUGH */
543 case 16:
544 addr[bytes*j + 1] ^= 0xff;
545 addr[bytes*j] ^= 0xff;
546 break;
547 default:
548 break;
549 }
550 }
551
552 addr += sc->stride;
553 }
554}
555
556static void
557bcmrend_blink_cursor(scr_stat* scp, int at, int flip)
558{
559}
560
561static void
562bcmrend_set_mouse(scr_stat* scp)
563{
564}
565
566static void
567bcmrend_draw_mouse(scr_stat* scp, int x, int y, int on)
568{
569 vidd_putm(scp->sc->adp, x, y, mouse_pointer, 0xffffffff, 16, 8);
570}
571
572static uint16_t bcmfb_static_window[ROW*COL];
573extern u_char dflt_font_16[];
574
575/*
576 * Update videoadapter settings after changing resolution
577 */
578static void
579bcmfb_update_margins(video_adapter_t *adp)
580{
581 struct video_adapter_softc *sc;
582 video_info_t *vi;
583
584 sc = (struct video_adapter_softc *)adp;
585 vi = &adp->va_info;
586
587 sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
588 sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight))/2;
589}
590
591static int
592bcmfb_configure(int flags)
593{
594 struct video_adapter_softc *va_sc;
595
596 va_sc = &va_softc;
597 phandle_t display, root;
598 pcell_t cell;
599
600 if (va_sc->initialized)
601 return (0);
602
603 va_sc->width = 0;
604 va_sc->height = 0;
605
606 /*
607 * It seems there is no way to let syscons framework know
608 * that framebuffer resolution has changed. So just try
609 * to fetch data from FDT and go with defaults if failed
610 */
611 root = OF_finddevice("/");
612 if ((root != 0) &&
613 (display = fdt_find_compatible(root, "broadcom,bcm2835-fb", 1))) {
614 if ((OF_getprop(display, "broadcom,width",
615 &cell, sizeof(cell))) > 0)
616 va_sc->width = (int)fdt32_to_cpu(cell);
617
618 if ((OF_getprop(display, "broadcom,height",
619 &cell, sizeof(cell))) > 0)
620 va_sc->height = (int)fdt32_to_cpu(cell);
621 }
622
623 if (va_sc->width == 0)
624 va_sc->width = FB_WIDTH;
625 if (va_sc->height == 0)
626 va_sc->height = FB_HEIGHT;
627
628 bcmfb_init(0, &va_sc->va, 0);
629
630 va_sc->initialized = 1;
631
632 return (0);
633}
634
635static int
636bcmfb_probe(int unit, video_adapter_t **adp, void *arg, int flags)
637{
638
639 return (0);
640}
641
642static int
643bcmfb_init(int unit, video_adapter_t *adp, int flags)
644{
645 struct video_adapter_softc *sc;
646 video_info_t *vi;
647
648 sc = (struct video_adapter_softc *)adp;
649 vi = &adp->va_info;
650
651 vid_init_struct(adp, "bcmfb", -1, unit);
652
653 sc->font = dflt_font_16;
654 vi->vi_cheight = BCMFB_FONT_HEIGHT;
655 vi->vi_cwidth = 8;
656
657 vi->vi_width = sc->width/8;
658 vi->vi_height = sc->height/vi->vi_cheight;
659
660 /*
661 * Clamp width/height to syscons maximums
662 */
663 if (vi->vi_width > COL)
664 vi->vi_width = COL;
665 if (vi->vi_height > ROW)
666 vi->vi_height = ROW;
667
668 sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
669 sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight))/2;
670
671
672 adp->va_window = (vm_offset_t) bcmfb_static_window;
673 adp->va_flags |= V_ADP_FONT /* | V_ADP_COLOR | V_ADP_MODECHANGE */;
674
675 vid_register(&sc->va);
676
677 return (0);
678}
679
680static int
681bcmfb_get_info(video_adapter_t *adp, int mode, video_info_t *info)
682{
683 bcopy(&adp->va_info, info, sizeof(*info));
684 return (0);
685}
686
687static int
688bcmfb_query_mode(video_adapter_t *adp, video_info_t *info)
689{
690 return (0);
691}
692
693static int
694bcmfb_set_mode(video_adapter_t *adp, int mode)
695{
696 return (0);
697}
698
699static int
700bcmfb_save_font(video_adapter_t *adp, int page, int size, int width,
701 u_char *data, int c, int count)
702{
703 return (0);
704}
705
706static int
707bcmfb_load_font(video_adapter_t *adp, int page, int size, int width,
708 u_char *data, int c, int count)
709{
710 struct video_adapter_softc *sc = (struct video_adapter_softc *)adp;
711
712 sc->font = data;
713
714 return (0);
715}
716
717static int
718bcmfb_show_font(video_adapter_t *adp, int page)
719{
720 return (0);
721}
722
723static int
724bcmfb_save_palette(video_adapter_t *adp, u_char *palette)
725{
726 return (0);
727}
728
729static int
730bcmfb_load_palette(video_adapter_t *adp, u_char *palette)
731{
732 return (0);
733}
734
735static int
736bcmfb_set_border(video_adapter_t *adp, int border)
737{
738 return (bcmfb_blank_display(adp, border));
739}
740
741static int
742bcmfb_save_state(video_adapter_t *adp, void *p, size_t size)
743{
744 return (0);
745}
746
747static int
748bcmfb_load_state(video_adapter_t *adp, void *p)
749{
750 return (0);
751}
752
753static int
754bcmfb_set_win_org(video_adapter_t *adp, off_t offset)
755{
756 return (0);
757}
758
759static int
760bcmfb_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
761{
762 *col = *row = 0;
763
764 return (0);
765}
766
767static int
768bcmfb_set_hw_cursor(video_adapter_t *adp, int col, int row)
769{
770 return (0);
771}
772
773static int
774bcmfb_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
775 int celsize, int blink)
776{
777 return (0);
778}
779
780static int
781bcmfb_blank_display(video_adapter_t *adp, int mode)
782{
783
784 struct video_adapter_softc *sc;
785
786 sc = (struct video_adapter_softc *)adp;
787 if (sc && sc->fb_addr)
788 memset((void*)sc->fb_addr, 0, sc->fb_size);
789
790 return (0);
791}
792
793static int
794bcmfb_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
795 int prot, vm_memattr_t *memattr)
796{
797 struct video_adapter_softc *sc;
798
799 sc = (struct video_adapter_softc *)adp;
800
801 /*
802 * This might be a legacy VGA mem request: if so, just point it at the
803 * framebuffer, since it shouldn't be touched
804 */
805 if (offset < sc->stride*sc->height) {
806 *paddr = sc->fb_paddr + offset;
807 return (0);
808 }
809
810 return (EINVAL);
811}
812
813static int
814bcmfb_ioctl(video_adapter_t *adp, u_long cmd, caddr_t data)
815{
816 struct video_adapter_softc *sc;
817 struct fbtype *fb;
818
819 sc = (struct video_adapter_softc *)adp;
820
821 switch (cmd) {
822 case FBIOGTYPE:
823 fb = (struct fbtype *)data;
824 fb->fb_type = FBTYPE_PCIMISC;
825 fb->fb_height = sc->height;
826 fb->fb_width = sc->width;
827 fb->fb_depth = sc->depth;
828 if (sc->depth <= 1 || sc->depth > 8)
829 fb->fb_cmsize = 0;
830 else
831 fb->fb_cmsize = 1 << sc->depth;
832 fb->fb_size = sc->fb_size;
833 break;
834 default:
835 return (fb_commonioctl(adp, cmd, data));
836 }
837
838 return (0);
839}
840
841static int
842bcmfb_clear(video_adapter_t *adp)
843{
844
845 return (bcmfb_blank_display(adp, 0));
846}
847
848static int
849bcmfb_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
850{
851
852 return (0);
853}
854
855static int
856bcmfb_bitblt(video_adapter_t *adp, ...)
857{
858
859 return (0);
860}
861
862static int
863bcmfb_diag(video_adapter_t *adp, int level)
864{
865
866 return (0);
867}
868
869static int
870bcmfb_save_cursor_palette(video_adapter_t *adp, u_char *palette)
871{
872
873 return (0);
874}
875
876static int
877bcmfb_load_cursor_palette(video_adapter_t *adp, u_char *palette)
878{
879
880 return (0);
881}
882
883static int
884bcmfb_copy(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, int n)
885{
886
887 return (0);
888}
889
890static int
891bcmfb_putp(video_adapter_t *adp, vm_offset_t off, uint32_t p, uint32_t a,
892 int size, int bpp, int bit_ltor, int byte_ltor)
893{
894
895 return (0);
896}
897
898static int
899bcmfb_putc(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a)
900{
901 struct video_adapter_softc *sc;
902 int row;
903 int col;
904 int i, j, k;
905 uint8_t *addr;
906 u_char *p;
907 uint8_t fg, bg, color;
908 uint16_t rgb;
909
910 sc = (struct video_adapter_softc *)adp;
911
912 if (sc->fb_addr == 0)
913 return (0);
914
915 row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
916 col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
917 p = sc->font + c*BCMFB_FONT_HEIGHT;
918 addr = (uint8_t *)sc->fb_addr
919 + (row + sc->ymargin)*(sc->stride)
920 + (sc->depth/8) * (col + sc->xmargin);
921
922 fg = a & 0xf ;
923 bg = (a >> 4) & 0xf;
924
925 for (i = 0; i < BCMFB_FONT_HEIGHT; i++) {
926 for (j = 0, k = 7; j < 8; j++, k--) {
927 if ((p[i] & (1 << k)) == 0)
928 color = bg;
929 else
930 color = fg;
931
932 switch (sc->depth) {
933 case 32:
934 addr[4*j+0] = bcmfb_palette[color].r;
935 addr[4*j+1] = bcmfb_palette[color].g;
936 addr[4*j+2] = bcmfb_palette[color].b;
937 addr[4*j+3] = bcmfb_palette[color].a;
938 break;
939 case 24:
940 addr[3*j] = bcmfb_palette[color].r;
941 addr[3*j+1] = bcmfb_palette[color].g;
942 addr[3*j+2] = bcmfb_palette[color].b;
943 break;
944 case 16:
945 rgb = (bcmfb_palette[color].r >> 3) << 11;
946 rgb |= (bcmfb_palette[color].g >> 2) << 5;
947 rgb |= (bcmfb_palette[color].b >> 3);
948 addr[2*j] = rgb & 0xff;
949 addr[2*j + 1] = (rgb >> 8) & 0xff;
950 default:
951 /* Not supported yet */
952 break;
953 }
954 }
955
956 addr += (sc->stride);
957 }
958
959 return (0);
960}
961
962static int
963bcmfb_puts(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, int len)
964{
965 int i;
966
967 for (i = 0; i < len; i++)
968 bcmfb_putc(adp, off + i, s[i] & 0xff, (s[i] & 0xff00) >> 8);
969
970 return (0);
971}
972
973static int
974bcmfb_putm(video_adapter_t *adp, int x, int y, uint8_t *pixel_image,
975 uint32_t pixel_mask, int size, int width)
976{
977
978 return (0);
979}
980
981/*
982 * Define a stub keyboard driver in case one hasn't been
983 * compiled into the kernel
984 */
985#include <sys/kbio.h>
986#include <dev/kbd/kbdreg.h>
987
988static int dummy_kbd_configure(int flags);
989
990keyboard_switch_t bcmdummysw;
991
992static int
993dummy_kbd_configure(int flags)
994{
995
996 return (0);
997}
998KEYBOARD_DRIVER(bcmdummy, bcmdummysw, dummy_kbd_configure);