X-Git-Url: http://git.joshuawise.com/netwatch.git/blobdiff_plain/9e2a82e4e9495f33b8e6423c335a9a157f056254..33e49b2e6d599bc56326841b5b373b9f76adc5f7:/aseg-paging/vga-overlay.c?ds=sidebyside diff --git a/aseg-paging/vga-overlay.c b/aseg-paging/vga-overlay.c deleted file mode 100644 index 4d19c3b..0000000 --- a/aseg-paging/vga-overlay.c +++ /dev/null @@ -1,102 +0,0 @@ -#include -#include -#include -#include -#include -#include - -#define LOGLEN 96 -#define LOG_ONSCREEN 4 - -static char logents[LOGLEN][41] = {{0}}; -static int prodptr = 0; -static int flush_imm = 0; - -#define VRAM_BASE 0xA0000UL -#define TEXT_CONSOLE_OFFSET 0x18000UL - -#define TEXT_CONSOLE_BASE (VRAM_BASE + TEXT_CONSOLE_OFFSET) - -#define COLOR 0x1F - -void vga_flush_imm(int imm) -{ - flush_imm = imm; -} - -static unsigned char vga_read(unsigned char idx) -{ - outb(CRTC_IDX_REG, idx); - return inb(CRTC_DATA_REG); -} - -static char * vga_base() -{ - return (char *) ( - TEXT_CONSOLE_BASE - + (((unsigned int) vga_read(CRTC_START_ADDR_MSB_IDX)) << 9) - + (((unsigned int) vga_read(CRTC_START_ADDR_LSB_IDX)) << 1) - ); -} - -void strblit(char *src, int row, int col) -{ - char *destp = vga_base() + row * 80 * 2 + col * 2; - outb(0x80, 0x3C); - smram_state_t old_state = smram_save_state(); - outb(0x80, 0x3D); - - smram_aseg_set_state(SMRAM_ASEG_SMMCODE); - outb(0x80, 0x3E); - - while (*src) - { - *(destp++) = *(src++); - *(destp++) = COLOR; - } - - outb(0x80, 0x3F); - smram_restore_state(old_state); - outb(0x80, 0x40); -} - -void outlog() -{ - int y, x; - char *basep = vga_base(); - - smram_state_t old_state = smram_save_state(); - - smram_aseg_set_state(SMRAM_ASEG_SMMCODE); - - for (y = 0; y < LOG_ONSCREEN; y++) - for (x = 40; x < 80; x++) - { - basep[y*80*2+x*2] = ' '; - basep[y*80*2+x*2+1] = 0x1F; - } - - smram_restore_state(old_state); - - for (y = -LOG_ONSCREEN; y < 0; y++) - strblit(logents[(y + prodptr) % LOGLEN], y + LOG_ONSCREEN, 40); -} - -void dolog(const char *s) -{ - strcpy(logents[prodptr], s); - prodptr = (prodptr + 1) % LOGLEN; - if (flush_imm) - outlog(); -} -void (*output)(const char *s) = dolog; - -void dologf(const char *fmt, ...) -{ -} -void (*outputf)(const char *s, ...) = dologf; - -void dump_log (char * target) { - memcpy(target, logents, sizeof(logents)); -} -