6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation; either version 2 of
9 * the License, or (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License along
17 * with this program; if not, see <http://www.gnu.org/licenses/>.
20 #include "qemu/osdep.h"
22 #include "ui/console.h"
23 #include "hw/arm/omap.h"
24 #include "framebuffer.h"
25 #include "ui/pixel_ops.h"
27 struct omap_lcd_panel_s {
30 MemoryRegionSection fbsection;
45 struct omap_dma_lcd_channel_s *dma;
46 uint16_t palette[256];
53 static void omap_lcd_interrupts(struct omap_lcd_panel_s *s)
55 if (s->frame_done && (s->interrupts & 1)) {
56 qemu_irq_raise(s->irq);
60 if (s->palette_done && (s->interrupts & 2)) {
61 qemu_irq_raise(s->irq);
66 qemu_irq_raise(s->irq);
70 qemu_irq_lower(s->irq);
76 static void draw_line2_32(void *opaque, uint8_t *d, const uint8_t *s,
77 int width, int deststep)
79 uint16_t *pal = opaque;
83 v = ldub_p((void *) s);
84 r = (pal[v & 3] >> 4) & 0xf0;
85 g = pal[v & 3] & 0xf0;
86 b = (pal[v & 3] << 4) & 0xf0;
87 ((uint32_t *) d)[0] = rgb_to_pixel32(r, g, b);
90 r = (pal[v & 3] >> 4) & 0xf0;
91 g = pal[v & 3] & 0xf0;
92 b = (pal[v & 3] << 4) & 0xf0;
93 ((uint32_t *) d)[0] = rgb_to_pixel32(r, g, b);
96 r = (pal[v & 3] >> 4) & 0xf0;
97 g = pal[v & 3] & 0xf0;
98 b = (pal[v & 3] << 4) & 0xf0;
99 ((uint32_t *) d)[0] = rgb_to_pixel32(r, g, b);
102 r = (pal[v & 3] >> 4) & 0xf0;
103 g = pal[v & 3] & 0xf0;
104 b = (pal[v & 3] << 4) & 0xf0;
105 ((uint32_t *) d)[0] = rgb_to_pixel32(r, g, b);
115 static void draw_line4_32(void *opaque, uint8_t *d, const uint8_t *s,
116 int width, int deststep)
118 uint16_t *pal = opaque;
122 v = ldub_p((void *) s);
123 r = (pal[v & 0xf] >> 4) & 0xf0;
124 g = pal[v & 0xf] & 0xf0;
125 b = (pal[v & 0xf] << 4) & 0xf0;
126 ((uint32_t *) d)[0] = rgb_to_pixel32(r, g, b);
129 r = (pal[v & 0xf] >> 4) & 0xf0;
130 g = pal[v & 0xf] & 0xf0;
131 b = (pal[v & 0xf] << 4) & 0xf0;
132 ((uint32_t *) d)[0] = rgb_to_pixel32(r, g, b);
142 static void draw_line8_32(void *opaque, uint8_t *d, const uint8_t *s,
143 int width, int deststep)
145 uint16_t *pal = opaque;
149 v = ldub_p((void *) s);
150 r = (pal[v] >> 4) & 0xf0;
152 b = (pal[v] << 4) & 0xf0;
153 ((uint32_t *) d)[0] = rgb_to_pixel32(r, g, b);
156 } while (-- width != 0);
162 static void draw_line12_32(void *opaque, uint8_t *d, const uint8_t *s,
163 int width, int deststep)
169 v = lduw_le_p((void *) s);
173 ((uint32_t *) d)[0] = rgb_to_pixel32(r, g, b);
176 } while (-- width != 0);
182 static void draw_line16_32(void *opaque, uint8_t *d, const uint8_t *s,
183 int width, int deststep)
189 v = lduw_le_p((void *) s);
193 ((uint32_t *) d)[0] = rgb_to_pixel32(r, g, b);
196 } while (-- width != 0);
199 static void omap_update_display(void *opaque)
201 struct omap_lcd_panel_s *omap_lcd = (struct omap_lcd_panel_s *) opaque;
202 DisplaySurface *surface;
204 int size, height, first, last;
205 int width, linesize, step, bpp, frame_offset;
208 if (!omap_lcd || omap_lcd->plm == 1 || !omap_lcd->enable) {
212 surface = qemu_console_surface(omap_lcd->con);
213 if (!surface_bits_per_pixel(surface)) {
218 if (omap_lcd->plm != 2) {
219 cpu_physical_memory_read(
220 omap_lcd->dma->phys_framebuffer[omap_lcd->dma->current_frame],
221 omap_lcd->palette, 0x200);
222 switch (omap_lcd->palette[0] >> 12 & 7) {
224 frame_offset += 0x200;
227 frame_offset += 0x20;
232 switch ((omap_lcd->palette[0] >> 12) & 7) {
234 draw_line = draw_line2_32;
239 draw_line = draw_line4_32;
244 draw_line = draw_line8_32;
250 draw_line = draw_line12_32;
252 draw_line = draw_line16_32;
257 /* Unsupported at the moment. */
262 width = omap_lcd->width;
263 if (width != surface_width(surface) ||
264 omap_lcd->height != surface_height(surface)) {
265 qemu_console_resize(omap_lcd->con,
266 omap_lcd->width, omap_lcd->height);
267 surface = qemu_console_surface(omap_lcd->con);
268 omap_lcd->invalidate = 1;
271 if (omap_lcd->dma->current_frame == 0)
272 size = omap_lcd->dma->src_f1_bottom - omap_lcd->dma->src_f1_top;
274 size = omap_lcd->dma->src_f2_bottom - omap_lcd->dma->src_f2_top;
276 if (frame_offset + ((width * omap_lcd->height * bpp) >> 3) > size + 2) {
277 omap_lcd->sync_error = 1;
278 omap_lcd_interrupts(omap_lcd);
279 omap_lcd->enable = 0;
284 frame_base = omap_lcd->dma->phys_framebuffer[
285 omap_lcd->dma->current_frame] + frame_offset;
286 omap_lcd->dma->condition |= 1 << omap_lcd->dma->current_frame;
287 if (omap_lcd->dma->interrupts & 1)
288 qemu_irq_raise(omap_lcd->dma->irq);
289 if (omap_lcd->dma->dual)
290 omap_lcd->dma->current_frame ^= 1;
292 if (!surface_bits_per_pixel(surface)) {
297 height = omap_lcd->height;
298 if (omap_lcd->subpanel & (1 << 31)) {
299 if (omap_lcd->subpanel & (1 << 29))
300 first = (omap_lcd->subpanel >> 16) & 0x3ff;
302 height = (omap_lcd->subpanel >> 16) & 0x3ff;
303 /* TODO: fill the rest of the panel with DPD */
306 step = width * bpp >> 3;
307 linesize = surface_stride(surface);
308 if (omap_lcd->invalidate) {
309 framebuffer_update_memory_section(&omap_lcd->fbsection,
310 omap_lcd->sysmem, frame_base,
314 framebuffer_update_display(surface, &omap_lcd->fbsection,
317 omap_lcd->invalidate,
318 draw_line, omap_lcd->palette,
322 dpy_gfx_update(omap_lcd->con, 0, first, width, last - first + 1);
324 omap_lcd->invalidate = 0;
327 static void omap_invalidate_display(void *opaque) {
328 struct omap_lcd_panel_s *omap_lcd = opaque;
329 omap_lcd->invalidate = 1;
332 static void omap_lcd_update(struct omap_lcd_panel_s *s) {
334 s->dma->current_frame = -1;
338 omap_lcd_interrupts(s);
342 if (s->dma->current_frame == -1) {
345 s->dma->current_frame = 0;
348 if (!s->dma->mpu->port[s->dma->src].addr_valid(s->dma->mpu,
349 s->dma->src_f1_top) ||
351 s->dma->src].addr_valid(s->dma->mpu,
352 s->dma->src_f1_bottom) ||
355 s->dma->src].addr_valid(s->dma->mpu,
356 s->dma->src_f2_top) ||
358 s->dma->src].addr_valid(s->dma->mpu,
359 s->dma->src_f2_bottom)))) {
360 s->dma->condition |= 1 << 2;
361 if (s->dma->interrupts & (1 << 1))
362 qemu_irq_raise(s->dma->irq);
367 s->dma->phys_framebuffer[0] = s->dma->src_f1_top;
368 s->dma->phys_framebuffer[1] = s->dma->src_f2_top;
370 if (s->plm != 2 && !s->palette_done) {
371 cpu_physical_memory_read(
372 s->dma->phys_framebuffer[s->dma->current_frame],
375 omap_lcd_interrupts(s);
379 static uint64_t omap_lcdc_read(void *opaque, hwaddr addr,
382 struct omap_lcd_panel_s *s = (struct omap_lcd_panel_s *) opaque;
385 case 0x00: /* LCD_CONTROL */
386 return (s->tft << 23) | (s->plm << 20) |
387 (s->tft << 7) | (s->interrupts << 3) |
388 (s->mono << 1) | s->enable | s->ctrl | 0xfe000c34;
390 case 0x04: /* LCD_TIMING0 */
391 return (s->timing[0] << 10) | (s->width - 1) | 0x0000000f;
393 case 0x08: /* LCD_TIMING1 */
394 return (s->timing[1] << 10) | (s->height - 1);
396 case 0x0c: /* LCD_TIMING2 */
397 return s->timing[2] | 0xfc000000;
399 case 0x10: /* LCD_STATUS */
400 return (s->palette_done << 6) | (s->sync_error << 2) | s->frame_done;
402 case 0x14: /* LCD_SUBPANEL */
412 static void omap_lcdc_write(void *opaque, hwaddr addr,
413 uint64_t value, unsigned size)
415 struct omap_lcd_panel_s *s = (struct omap_lcd_panel_s *) opaque;
418 case 0x00: /* LCD_CONTROL */
419 s->plm = (value >> 20) & 3;
420 s->tft = (value >> 7) & 1;
421 s->interrupts = (value >> 3) & 3;
422 s->mono = (value >> 1) & 1;
423 s->ctrl = value & 0x01cff300;
424 if (s->enable != (value & 1)) {
425 s->enable = value & 1;
430 case 0x04: /* LCD_TIMING0 */
431 s->timing[0] = value >> 10;
432 s->width = (value & 0x3ff) + 1;
435 case 0x08: /* LCD_TIMING1 */
436 s->timing[1] = value >> 10;
437 s->height = (value & 0x3ff) + 1;
440 case 0x0c: /* LCD_TIMING2 */
441 s->timing[2] = value;
444 case 0x10: /* LCD_STATUS */
447 case 0x14: /* LCD_SUBPANEL */
448 s->subpanel = value & 0xa1ffffff;
456 static const MemoryRegionOps omap_lcdc_ops = {
457 .read = omap_lcdc_read,
458 .write = omap_lcdc_write,
459 .endianness = DEVICE_NATIVE_ENDIAN,
462 void omap_lcdc_reset(struct omap_lcd_panel_s *s)
464 s->dma->current_frame = -1;
484 static const GraphicHwOps omap_ops = {
485 .invalidate = omap_invalidate_display,
486 .gfx_update = omap_update_display,
489 struct omap_lcd_panel_s *omap_lcdc_init(MemoryRegion *sysmem,
492 struct omap_dma_lcd_channel_s *dma,
495 struct omap_lcd_panel_s *s = g_new0(struct omap_lcd_panel_s, 1);
502 memory_region_init_io(&s->iomem, NULL, &omap_lcdc_ops, s, "omap.lcdc", 0x100);
503 memory_region_add_subregion(sysmem, base, &s->iomem);
505 s->con = graphic_console_init(NULL, 0, &omap_ops, s);