/* * OMAP LCD controller. * * Copyright (C) 2006-2007 Andrzej Zaborowski <balrog@zabor.org> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, see <http://www.gnu.org/licenses/>. */ #include "hw.h" #include "ui/console.h" #include "omap.h" #include "framebuffer.h" #include "ui/pixel_ops.h" struct omap_lcd_panel_s { MemoryRegion *sysmem; MemoryRegion iomem; qemu_irq irq; DisplayState *state; int plm; int tft; int mono; int enable; int width; int height; int interrupts; uint32_t timing[3]; uint32_t subpanel; uint32_t ctrl; struct omap_dma_lcd_channel_s *dma; uint16_t palette[256]; int palette_done; int frame_done; int invalidate; int sync_error; }; static void omap_lcd_interrupts(struct omap_lcd_panel_s *s) { if (s->frame_done && (s->interrupts & 1)) { qemu_irq_raise(s->irq); return; } if (s->palette_done && (s->interrupts & 2)) { qemu_irq_raise(s->irq); return; } if (s->sync_error) { qemu_irq_raise(s->irq); return; } qemu_irq_lower(s->irq); } #define draw_line_func drawfn #define DEPTH 8 #include "omap_lcd_template.h" #define DEPTH 15 #include "omap_lcd_template.h" #define DEPTH 16 #include "omap_lcd_template.h" #define DEPTH 32 #include "omap_lcd_template.h" static draw_line_func draw_line_table2[33] = { [0 ... 32] = NULL, [8] = draw_line2_8, [15] = draw_line2_15, [16] = draw_line2_16, [32] = draw_line2_32, }, draw_line_table4[33] = { [0 ... 32] = NULL, [8] = draw_line4_8, [15] = draw_line4_15, [16] = draw_line4_16, [32] = draw_line4_32, }, draw_line_table8[33] = { [0 ... 32] = NULL, [8] = draw_line8_8, [15] = draw_line8_15, [16] = draw_line8_16, [32] = draw_line8_32, }, draw_line_table12[33] = { [0 ... 32] = NULL, [8] = draw_line12_8, [15] = draw_line12_15, [16] = draw_line12_16, [32] = draw_line12_32, }, draw_line_table16[33] = { [0 ... 32] = NULL, [8] = draw_line16_8, [15] = draw_line16_15, [16] = draw_line16_16, [32] = draw_line16_32, }; static void omap_update_display(void *opaque) { struct omap_lcd_panel_s *omap_lcd = (struct omap_lcd_panel_s *) opaque; draw_line_func draw_line; int size, height, first, last; int width, linesize, step, bpp, frame_offset; hwaddr frame_base; if (!omap_lcd || omap_lcd->plm == 1 || !omap_lcd->enable || !ds_get_bits_per_pixel(omap_lcd->state)) return; frame_offset = 0; if (omap_lcd->plm != 2) { cpu_physical_memory_read(omap_lcd->dma->phys_framebuffer[ omap_lcd->dma->current_frame], (void *)omap_lcd->palette, 0x200); switch (omap_lcd->palette[0] >> 12 & 7) { case 3 ... 7: frame_offset += 0x200; break; default: frame_offset += 0x20; } } /* Colour depth */ switch ((omap_lcd->palette[0] >> 12) & 7) { case 1: draw_line = draw_line_table2[ds_get_bits_per_pixel(omap_lcd->state)]; bpp = 2; break; case 2: draw_line = draw_line_table4[ds_get_bits_per_pixel(omap_lcd->state)]; bpp = 4; break; case 3: draw_line = draw_line_table8[ds_get_bits_per_pixel(omap_lcd->state)]; bpp = 8; break; case 4 ... 7: if (!omap_lcd->tft) draw_line = draw_line_table12[ds_get_bits_per_pixel(omap_lcd->state)]; else draw_line = draw_line_table16[ds_get_bits_per_pixel(omap_lcd->state)]; bpp = 16; break; default: /* Unsupported at the moment. */ return; } /* Resolution */ width = omap_lcd->width; if (width != ds_get_width(omap_lcd->state) || omap_lcd->height != ds_get_height(omap_lcd->state)) { qemu_console_resize(omap_lcd->state, omap_lcd->width, omap_lcd->height); omap_lcd->invalidate = 1; } if (omap_lcd->dma->current_frame == 0) size = omap_lcd->dma->src_f1_bottom - omap_lcd->dma->src_f1_top; else size = omap_lcd->dma->src_f2_bottom - omap_lcd->dma->src_f2_top; if (frame_offset + ((width * omap_lcd->height * bpp) >> 3) > size + 2) { omap_lcd->sync_error = 1; omap_lcd_interrupts(omap_lcd); omap_lcd->enable = 0; return; } /* Content */ frame_base = omap_lcd->dma->phys_framebuffer[ omap_lcd->dma->current_frame] + frame_offset; omap_lcd->dma->condition |= 1 << omap_lcd->dma->current_frame; if (omap_lcd->dma->interrupts & 1) qemu_irq_raise(omap_lcd->dma->irq); if (omap_lcd->dma->dual) omap_lcd->dma->current_frame ^= 1; if (!ds_get_bits_per_pixel(omap_lcd->state)) return; first = 0; height = omap_lcd->height; if (omap_lcd->subpanel & (1 << 31)) { if (omap_lcd->subpanel & (1 << 29)) first = (omap_lcd->subpanel >> 16) & 0x3ff; else height = (omap_lcd->subpanel >> 16) & 0x3ff; /* TODO: fill the rest of the panel with DPD */ } step = width * bpp >> 3; linesize = ds_get_linesize(omap_lcd->state); framebuffer_update_display(omap_lcd->state, omap_lcd->sysmem, frame_base, width, height, step, linesize, 0, omap_lcd->invalidate, draw_line, omap_lcd->palette, &first, &last); if (first >= 0) { dpy_gfx_update(omap_lcd->state, 0, first, width, last - first + 1); } omap_lcd->invalidate = 0; } static void omap_ppm_save(const char *filename, uint8_t *data, int w, int h, int linesize, Error **errp) { FILE *f; uint8_t *d, *d1; unsigned int v; int ret, y, x, bpp; f = fopen(filename, "wb"); if (!f) { error_setg(errp, "failed to open file '%s': %s", filename, strerror(errno)); return; } ret = fprintf(f, "P6\n%d %d\n%d\n", w, h, 255); if (ret < 0) { goto write_err; } d1 = data; bpp = linesize / w; for (y = 0; y < h; y ++) { d = d1; for (x = 0; x < w; x ++) { v = *(uint32_t *) d; switch (bpp) { case 2: ret = fputc((v >> 8) & 0xf8, f); if (ret == EOF) { goto write_err; } ret = fputc((v >> 3) & 0xfc, f); if (ret == EOF) { goto write_err; } ret = fputc((v << 3) & 0xf8, f); if (ret == EOF) { goto write_err; } break; case 3: case 4: default: ret = fputc((v >> 16) & 0xff, f); if (ret == EOF) { goto write_err; } ret = fputc((v >> 8) & 0xff, f); if (ret == EOF) { goto write_err; } ret = fputc((v) & 0xff, f); if (ret == EOF) { goto write_err; } break; } d += bpp; } d1 += linesize; } out: fclose(f); return; write_err: error_setg(errp, "failed to write to file '%s': %s", filename, strerror(errno)); unlink(filename); goto out; } static void omap_screen_dump(void *opaque, const char *filename, bool cswitch, Error **errp) { struct omap_lcd_panel_s *omap_lcd = opaque; omap_update_display(opaque); if (omap_lcd && ds_get_data(omap_lcd->state)) omap_ppm_save(filename, ds_get_data(omap_lcd->state), omap_lcd->width, omap_lcd->height, ds_get_linesize(omap_lcd->state), errp); } static void omap_invalidate_display(void *opaque) { struct omap_lcd_panel_s *omap_lcd = opaque; omap_lcd->invalidate = 1; } static void omap_lcd_update(struct omap_lcd_panel_s *s) { if (!s->enable) { s->dma->current_frame = -1; s->sync_error = 0; if (s->plm != 1) s->frame_done = 1; omap_lcd_interrupts(s); return; } if (s->dma->current_frame == -1) { s->frame_done = 0; s->palette_done = 0; s->dma->current_frame = 0; } if (!s->dma->mpu->port[s->dma->src].addr_valid(s->dma->mpu, s->dma->src_f1_top) || !s->dma->mpu->port[ s->dma->src].addr_valid(s->dma->mpu, s->dma->src_f1_bottom) || (s->dma->dual && (!s->dma->mpu->port[ s->dma->src].addr_valid(s->dma->mpu, s->dma->src_f2_top) || !s->dma->mpu->port[ s->dma->src].addr_valid(s->dma->mpu, s->dma->src_f2_bottom)))) { s->dma->condition |= 1 << 2; if (s->dma->interrupts & (1 << 1)) qemu_irq_raise(s->dma->irq); s->enable = 0; return; } s->dma->phys_framebuffer[0] = s->dma->src_f1_top; s->dma->phys_framebuffer[1] = s->dma->src_f2_top; if (s->plm != 2 && !s->palette_done) { cpu_physical_memory_read( s->dma->phys_framebuffer[s->dma->current_frame], (void *)s->palette, 0x200); s->palette_done = 1; omap_lcd_interrupts(s); } } static uint64_t omap_lcdc_read(void *opaque, hwaddr addr, unsigned size) { struct omap_lcd_panel_s *s = (struct omap_lcd_panel_s *) opaque; switch (addr) { 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, hwaddr addr, uint64_t value, unsigned size) { struct omap_lcd_panel_s *s = (struct omap_lcd_panel_s *) opaque; switch (addr) { 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 const MemoryRegionOps omap_lcdc_ops = { .read = omap_lcdc_read, .write = omap_lcdc_write, .endianness = DEVICE_NATIVE_ENDIAN, }; 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(MemoryRegion *sysmem, hwaddr base, qemu_irq irq, struct omap_dma_lcd_channel_s *dma, omap_clk clk) { struct omap_lcd_panel_s *s = (struct omap_lcd_panel_s *) g_malloc0(sizeof(struct omap_lcd_panel_s)); s->irq = irq; s->dma = dma; s->sysmem = sysmem; omap_lcdc_reset(s); memory_region_init_io(&s->iomem, &omap_lcdc_ops, s, "omap.lcdc", 0x100); memory_region_add_subregion(sysmem, base, &s->iomem); s->state = graphic_console_init(omap_update_display, omap_invalidate_display, omap_screen_dump, NULL, s); return s; }