2007-07-29 19:57:26 +02:00
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/*
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* OMAP LCD controller.
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*
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* Copyright (C) 2006-2007 Andrzej Zaborowski <balrog@zabor.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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2007-11-17 18:14:51 +01:00
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#include "hw.h"
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#include "console.h"
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#include "omap.h"
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2007-07-29 19:57:26 +02:00
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struct omap_lcd_panel_s {
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target_phys_addr_t base;
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qemu_irq irq;
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DisplayState *state;
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ram_addr_t imif_base;
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ram_addr_t emiff_base;
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int plm;
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int tft;
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int mono;
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int enable;
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int width;
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int height;
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int interrupts;
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uint32_t timing[3];
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uint32_t subpanel;
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uint32_t ctrl;
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struct omap_dma_lcd_channel_s *dma;
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uint16_t palette[256];
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int palette_done;
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int frame_done;
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int invalidate;
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int sync_error;
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};
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static void omap_lcd_interrupts(struct omap_lcd_panel_s *s)
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{
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if (s->frame_done && (s->interrupts & 1)) {
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qemu_irq_raise(s->irq);
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return;
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}
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if (s->palette_done && (s->interrupts & 2)) {
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qemu_irq_raise(s->irq);
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return;
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}
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if (s->sync_error) {
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qemu_irq_raise(s->irq);
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return;
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}
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qemu_irq_lower(s->irq);
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}
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#include "pixel_ops.h"
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typedef void draw_line_func(
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uint8_t *d, const uint8_t *s, int width, const uint16_t *pal);
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#define DEPTH 8
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#include "omap_lcd_template.h"
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#define DEPTH 15
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#include "omap_lcd_template.h"
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#define DEPTH 16
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#include "omap_lcd_template.h"
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#define DEPTH 32
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#include "omap_lcd_template.h"
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static draw_line_func *draw_line_table2[33] = {
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[0 ... 32] = 0,
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[8] = draw_line2_8,
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[15] = draw_line2_15,
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[16] = draw_line2_16,
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[32] = draw_line2_32,
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}, *draw_line_table4[33] = {
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[0 ... 32] = 0,
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[8] = draw_line4_8,
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[15] = draw_line4_15,
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[16] = draw_line4_16,
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[32] = draw_line4_32,
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}, *draw_line_table8[33] = {
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[0 ... 32] = 0,
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[8] = draw_line8_8,
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[15] = draw_line8_15,
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[16] = draw_line8_16,
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[32] = draw_line8_32,
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}, *draw_line_table12[33] = {
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[0 ... 32] = 0,
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[8] = draw_line12_8,
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[15] = draw_line12_15,
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[16] = draw_line12_16,
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[32] = draw_line12_32,
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}, *draw_line_table16[33] = {
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[0 ... 32] = 0,
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[8] = draw_line16_8,
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[15] = draw_line16_15,
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[16] = draw_line16_16,
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[32] = draw_line16_32,
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};
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2007-11-18 02:44:38 +01:00
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static void omap_update_display(void *opaque)
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2007-07-29 19:57:26 +02:00
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{
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struct omap_lcd_panel_s *omap_lcd = (struct omap_lcd_panel_s *) opaque;
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draw_line_func *draw_line;
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int size, dirty[2], minline, maxline, height;
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int line, width, linesize, step, bpp, frame_offset;
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ram_addr_t frame_base, scanline, newline, x;
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uint8_t *s, *d;
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if (!omap_lcd || omap_lcd->plm == 1 ||
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!omap_lcd->enable || !omap_lcd->state->depth)
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return;
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frame_offset = 0;
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if (omap_lcd->plm != 2) {
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memcpy(omap_lcd->palette, phys_ram_base +
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omap_lcd->dma->phys_framebuffer[
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omap_lcd->dma->current_frame], 0x200);
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switch (omap_lcd->palette[0] >> 12 & 7) {
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case 3 ... 7:
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frame_offset += 0x200;
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break;
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default:
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frame_offset += 0x20;
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}
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}
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/* Colour depth */
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switch ((omap_lcd->palette[0] >> 12) & 7) {
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case 1:
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draw_line = draw_line_table2[omap_lcd->state->depth];
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bpp = 2;
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break;
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case 2:
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draw_line = draw_line_table4[omap_lcd->state->depth];
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bpp = 4;
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break;
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case 3:
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draw_line = draw_line_table8[omap_lcd->state->depth];
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bpp = 8;
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break;
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case 4 ... 7:
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if (!omap_lcd->tft)
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draw_line = draw_line_table12[omap_lcd->state->depth];
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else
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draw_line = draw_line_table16[omap_lcd->state->depth];
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bpp = 16;
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break;
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default:
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/* Unsupported at the moment. */
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return;
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}
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/* Resolution */
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width = omap_lcd->width;
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if (width != omap_lcd->state->width ||
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omap_lcd->height != omap_lcd->state->height) {
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dpy_resize(omap_lcd->state,
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omap_lcd->width, omap_lcd->height);
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omap_lcd->invalidate = 1;
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}
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if (omap_lcd->dma->current_frame == 0)
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size = omap_lcd->dma->src_f1_bottom - omap_lcd->dma->src_f1_top;
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else
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size = omap_lcd->dma->src_f2_bottom - omap_lcd->dma->src_f2_top;
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if (frame_offset + ((width * omap_lcd->height * bpp) >> 3) > size + 2) {
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omap_lcd->sync_error = 1;
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omap_lcd_interrupts(omap_lcd);
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omap_lcd->enable = 0;
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return;
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}
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/* Content */
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frame_base = omap_lcd->dma->phys_framebuffer[
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omap_lcd->dma->current_frame] + frame_offset;
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omap_lcd->dma->condition |= 1 << omap_lcd->dma->current_frame;
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if (omap_lcd->dma->interrupts & 1)
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qemu_irq_raise(omap_lcd->dma->irq);
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if (omap_lcd->dma->dual)
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omap_lcd->dma->current_frame ^= 1;
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if (!omap_lcd->state->depth)
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return;
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line = 0;
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height = omap_lcd->height;
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if (omap_lcd->subpanel & (1 << 31)) {
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if (omap_lcd->subpanel & (1 << 29))
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line = (omap_lcd->subpanel >> 16) & 0x3ff;
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else
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height = (omap_lcd->subpanel >> 16) & 0x3ff;
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/* TODO: fill the rest of the panel with DPD */
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}
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step = width * bpp >> 3;
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scanline = frame_base + step * line;
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s = (uint8_t *) (phys_ram_base + scanline);
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d = omap_lcd->state->data;
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linesize = omap_lcd->state->linesize;
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dirty[0] = dirty[1] =
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cpu_physical_memory_get_dirty(scanline, VGA_DIRTY_FLAG);
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minline = height;
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maxline = line;
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for (; line < height; line ++) {
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newline = scanline + step;
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for (x = scanline + TARGET_PAGE_SIZE; x < newline;
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x += TARGET_PAGE_SIZE) {
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dirty[1] = cpu_physical_memory_get_dirty(x, VGA_DIRTY_FLAG);
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dirty[0] |= dirty[1];
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}
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if (dirty[0] || omap_lcd->invalidate) {
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draw_line(d, s, width, omap_lcd->palette);
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if (line < minline)
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minline = line;
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maxline = line + 1;
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}
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scanline = newline;
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dirty[0] = dirty[1];
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s += step;
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d += linesize;
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}
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if (maxline >= minline) {
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dpy_update(omap_lcd->state, 0, minline, width, maxline);
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cpu_physical_memory_reset_dirty(frame_base + step * minline,
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frame_base + step * maxline, VGA_DIRTY_FLAG);
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}
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}
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static int ppm_save(const char *filename, uint8_t *data,
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int w, int h, int linesize)
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{
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FILE *f;
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uint8_t *d, *d1;
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unsigned int v;
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int y, x, bpp;
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f = fopen(filename, "wb");
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if (!f)
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return -1;
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fprintf(f, "P6\n%d %d\n%d\n", w, h, 255);
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d1 = data;
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bpp = linesize / w;
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for (y = 0; y < h; y ++) {
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d = d1;
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for (x = 0; x < w; x ++) {
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v = *(uint32_t *) d;
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switch (bpp) {
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case 2:
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fputc((v >> 8) & 0xf8, f);
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fputc((v >> 3) & 0xfc, f);
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fputc((v << 3) & 0xf8, f);
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break;
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case 3:
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case 4:
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default:
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fputc((v >> 16) & 0xff, f);
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fputc((v >> 8) & 0xff, f);
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fputc((v) & 0xff, f);
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break;
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}
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d += bpp;
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}
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d1 += linesize;
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}
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fclose(f);
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return 0;
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}
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2007-11-18 02:44:38 +01:00
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static void omap_screen_dump(void *opaque, const char *filename) {
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2007-07-29 19:57:26 +02:00
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struct omap_lcd_panel_s *omap_lcd = opaque;
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omap_update_display(opaque);
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if (omap_lcd && omap_lcd->state->data)
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ppm_save(filename, omap_lcd->state->data,
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omap_lcd->width, omap_lcd->height,
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omap_lcd->state->linesize);
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}
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2007-11-18 02:44:38 +01:00
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static void omap_invalidate_display(void *opaque) {
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2007-07-29 19:57:26 +02:00
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struct omap_lcd_panel_s *omap_lcd = opaque;
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omap_lcd->invalidate = 1;
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}
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2007-11-18 02:44:38 +01:00
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static void omap_lcd_update(struct omap_lcd_panel_s *s) {
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2007-07-29 19:57:26 +02:00
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if (!s->enable) {
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s->dma->current_frame = -1;
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s->sync_error = 0;
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if (s->plm != 1)
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s->frame_done = 1;
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omap_lcd_interrupts(s);
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return;
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}
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if (s->dma->current_frame == -1) {
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s->frame_done = 0;
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s->palette_done = 0;
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s->dma->current_frame = 0;
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}
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if (!s->dma->mpu->port[s->dma->src].addr_valid(s->dma->mpu,
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s->dma->src_f1_top) ||
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!s->dma->mpu->port[
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s->dma->src].addr_valid(s->dma->mpu,
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s->dma->src_f1_bottom) ||
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(s->dma->dual &&
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(!s->dma->mpu->port[
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s->dma->src].addr_valid(s->dma->mpu,
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s->dma->src_f2_top) ||
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!s->dma->mpu->port[
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s->dma->src].addr_valid(s->dma->mpu,
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s->dma->src_f2_bottom)))) {
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s->dma->condition |= 1 << 2;
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if (s->dma->interrupts & (1 << 1))
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qemu_irq_raise(s->dma->irq);
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s->enable = 0;
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return;
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}
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if (s->dma->src == imif) {
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/* Framebuffers are in SRAM */
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s->dma->phys_framebuffer[0] = s->imif_base +
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s->dma->src_f1_top - OMAP_IMIF_BASE;
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s->dma->phys_framebuffer[1] = s->imif_base +
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s->dma->src_f2_top - OMAP_IMIF_BASE;
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} else {
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/* Framebuffers are in RAM */
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s->dma->phys_framebuffer[0] = s->emiff_base +
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s->dma->src_f1_top - OMAP_EMIFF_BASE;
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s->dma->phys_framebuffer[1] = s->emiff_base +
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s->dma->src_f2_top - OMAP_EMIFF_BASE;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (s->plm != 2 && !s->palette_done) {
|
|
|
|
memcpy(s->palette, phys_ram_base +
|
|
|
|
s->dma->phys_framebuffer[s->dma->current_frame], 0x200);
|
|
|
|
s->palette_done = 1;
|
|
|
|
omap_lcd_interrupts(s);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static uint32_t omap_lcdc_read(void *opaque, target_phys_addr_t addr)
|
|
|
|
{
|
|
|
|
struct omap_lcd_panel_s *s = (struct omap_lcd_panel_s *) opaque;
|
|
|
|
int offset = addr - s->base;
|
|
|
|
|
|
|
|
switch (offset) {
|
|
|
|
case 0x00: /* LCD_CONTROL */
|
|
|
|
return (s->tft << 23) | (s->plm << 20) |
|
|
|
|
(s->tft << 7) | (s->interrupts << 3) |
|
|
|
|
(s->mono << 1) | s->enable | s->ctrl | 0xfe000c34;
|
|
|
|
|
|
|
|
case 0x04: /* LCD_TIMING0 */
|
|
|
|
return (s->timing[0] << 10) | (s->width - 1) | 0x0000000f;
|
|
|
|
|
|
|
|
case 0x08: /* LCD_TIMING1 */
|
|
|
|
return (s->timing[1] << 10) | (s->height - 1);
|
|
|
|
|
|
|
|
case 0x0c: /* LCD_TIMING2 */
|
|
|
|
return s->timing[2] | 0xfc000000;
|
|
|
|
|
|
|
|
case 0x10: /* LCD_STATUS */
|
|
|
|
return (s->palette_done << 6) | (s->sync_error << 2) | s->frame_done;
|
|
|
|
|
|
|
|
case 0x14: /* LCD_SUBPANEL */
|
|
|
|
return s->subpanel;
|
|
|
|
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
OMAP_BAD_REG(addr);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void omap_lcdc_write(void *opaque, target_phys_addr_t addr,
|
|
|
|
uint32_t value)
|
|
|
|
{
|
|
|
|
struct omap_lcd_panel_s *s = (struct omap_lcd_panel_s *) opaque;
|
|
|
|
int offset = addr - s->base;
|
|
|
|
|
|
|
|
switch (offset) {
|
|
|
|
case 0x00: /* LCD_CONTROL */
|
|
|
|
s->plm = (value >> 20) & 3;
|
|
|
|
s->tft = (value >> 7) & 1;
|
|
|
|
s->interrupts = (value >> 3) & 3;
|
|
|
|
s->mono = (value >> 1) & 1;
|
|
|
|
s->ctrl = value & 0x01cff300;
|
|
|
|
if (s->enable != (value & 1)) {
|
|
|
|
s->enable = value & 1;
|
|
|
|
omap_lcd_update(s);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 0x04: /* LCD_TIMING0 */
|
|
|
|
s->timing[0] = value >> 10;
|
|
|
|
s->width = (value & 0x3ff) + 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 0x08: /* LCD_TIMING1 */
|
|
|
|
s->timing[1] = value >> 10;
|
|
|
|
s->height = (value & 0x3ff) + 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 0x0c: /* LCD_TIMING2 */
|
|
|
|
s->timing[2] = value;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 0x10: /* LCD_STATUS */
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 0x14: /* LCD_SUBPANEL */
|
|
|
|
s->subpanel = value & 0xa1ffffff;
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
OMAP_BAD_REG(addr);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static CPUReadMemoryFunc *omap_lcdc_readfn[] = {
|
|
|
|
omap_lcdc_read,
|
|
|
|
omap_lcdc_read,
|
|
|
|
omap_lcdc_read,
|
|
|
|
};
|
|
|
|
|
|
|
|
static CPUWriteMemoryFunc *omap_lcdc_writefn[] = {
|
|
|
|
omap_lcdc_write,
|
|
|
|
omap_lcdc_write,
|
|
|
|
omap_lcdc_write,
|
|
|
|
};
|
|
|
|
|
|
|
|
void omap_lcdc_reset(struct omap_lcd_panel_s *s)
|
|
|
|
{
|
|
|
|
s->dma->current_frame = -1;
|
|
|
|
s->plm = 0;
|
|
|
|
s->tft = 0;
|
|
|
|
s->mono = 0;
|
|
|
|
s->enable = 0;
|
|
|
|
s->width = 0;
|
|
|
|
s->height = 0;
|
|
|
|
s->interrupts = 0;
|
|
|
|
s->timing[0] = 0;
|
|
|
|
s->timing[1] = 0;
|
|
|
|
s->timing[2] = 0;
|
|
|
|
s->subpanel = 0;
|
|
|
|
s->palette_done = 0;
|
|
|
|
s->frame_done = 0;
|
|
|
|
s->sync_error = 0;
|
|
|
|
s->invalidate = 1;
|
|
|
|
s->subpanel = 0;
|
|
|
|
s->ctrl = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
struct omap_lcd_panel_s *omap_lcdc_init(target_phys_addr_t base, qemu_irq irq,
|
|
|
|
struct omap_dma_lcd_channel_s *dma, DisplayState *ds,
|
|
|
|
ram_addr_t imif_base, ram_addr_t emiff_base, omap_clk clk)
|
|
|
|
{
|
|
|
|
int iomemtype;
|
|
|
|
struct omap_lcd_panel_s *s = (struct omap_lcd_panel_s *)
|
|
|
|
qemu_mallocz(sizeof(struct omap_lcd_panel_s));
|
|
|
|
|
|
|
|
s->irq = irq;
|
|
|
|
s->dma = dma;
|
|
|
|
s->base = base;
|
|
|
|
s->state = ds;
|
|
|
|
s->imif_base = imif_base;
|
|
|
|
s->emiff_base = emiff_base;
|
|
|
|
omap_lcdc_reset(s);
|
|
|
|
|
|
|
|
iomemtype = cpu_register_io_memory(0, omap_lcdc_readfn,
|
|
|
|
omap_lcdc_writefn, s);
|
|
|
|
cpu_register_physical_memory(s->base, 0x100, iomemtype);
|
|
|
|
|
|
|
|
graphic_console_init(ds, omap_update_display,
|
2008-02-10 17:33:14 +01:00
|
|
|
omap_invalidate_display, omap_screen_dump, NULL, s);
|
2007-07-29 19:57:26 +02:00
|
|
|
|
|
|
|
return s;
|
|
|
|
}
|