Mercurial > lcfOS
view experiments/qemu_vexpress_a9/display.c @ 340:c7cc54c0dfdf devel
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author | Windel Bouwman |
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date | Sun, 23 Feb 2014 16:24:01 +0100 |
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#define PL110_CR_EN 0x001 #define PL110_CR_16BPP 0x008 #define PL110_CR_MONO 0x010 #define PL110_CR_TFT 0x020 #define PL110_CR_MONO_8B 0x040 #define PL110_CR_DUAL_LCD 0x080 #define PL110_CR_BGR 0x100 #define PL110_CR_BEBO 0x200 #define PL110_CR_BEPO 0x400 #define PL110_CR_PWR 0x800 #define PL110_IOBASE 0x10020000 #define FB_BASE 0x60050000 typedef unsigned int uint32; typedef unsigned char uint8; typedef unsigned short uint16; typedef struct { uint32 volatile tim0; //0 uint32 volatile tim1; //4 uint32 volatile tim2; //8 uint32 volatile tim3; //c uint32 volatile upbase; //10 uint32 volatile lpbase; //14 uint32 volatile control; //18 } PL111MMIO; void print_uart0(const char *s); extern uint16* image_data; extern int image_width; extern int image_height; void do_display(void) { uint16 volatile *fb; PL111MMIO *plio; int x, y; plio = (PL111MMIO*)PL110_IOBASE; plio->tim0 = 0x3f1f3f9c; plio->tim1 = 0x080b61df; plio->upbase = FB_BASE; /* 16-bit color */ plio->control = PL110_CR_EN | (0xC) | PL110_CR_TFT | PL110_CR_PWR; fb = (uint16*)FB_BASE; for (x = 0; x < (640 * 480) - 10; ++x) { fb[x] = 0x1f << (5 + 6) | 0xf << 5; } print_uart0("Cleared disp\n"); for (x = 0; x < image_width; x++) { for (y = 0; y < image_height; y++) { fb[x + 640 * y] = image_data[x + image_width * y]; } } }