FreeCalypso > hg > freecalypso-tools
view target-utils/c139explore/lcd.c @ 921:74d284add54d
fc-fsio: guard against bogus readdir results from the target
If the FFS being operated on contains SE K2x0 extended filenames,
readdir will return strings that are bad for printing. We need to
guard against this possibility, and also against possible other
bogosity that could be sent by other alien firmwares.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sat, 31 Dec 2022 22:55:23 +0000 |
parents | e7502631a0f9 |
children |
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#include <sys/types.h> #include "types.h" static void send_cmd_data(cmdbyte, databyte) { send_via_uwire(cmdbyte); send_via_uwire(databyte | 0x100); } void cmd_lcdcmd(argbulk) char *argbulk; { char *argv[3]; u_long cmd, data; if (parse_args(argbulk, 2, 2, argv, 0) < 0) return; if (parse_hexarg(argv[0], 2, &cmd) < 0) { printf("ERROR: arg1 must be a valid 8-bit hex value\n"); return; } if (parse_hexarg(argv[1], 2, &data) < 0) { printf("ERROR: arg2 must be a valid 8-bit hex value\n"); return; } send_cmd_data(cmd, data); } static void send_pixel_value(pix) { send_via_uwire((pix >> 8) | 0x100); send_via_uwire((pix & 0xFF) | 0x100); } void cmd_lcdpix(argbulk) char *argbulk; { char *argv[2]; u_long pixval; if (parse_args(argbulk, 1, 1, argv, 0) < 0) return; if (parse_hexarg(argv[0], 4, &pixval) < 0) { printf("ERROR: arg1 must be a valid 16-bit hex value\n"); return; } send_pixel_value(pixval); } void cmd_lcdinit() { /* from OsmocomBB */ send_cmd_data(0x3F, 0x01); send_cmd_data(0x20, 0x03); send_cmd_data(0x31, 0x03); } static void set_lcd_addr_region(xstart, xend, ystart, yend) { send_cmd_data(0x10, xstart); send_cmd_data(0x11, ystart); send_cmd_data(0x12, xend); send_cmd_data(0x13, yend); send_cmd_data(0x14, xstart); send_cmd_data(0x15, ystart); } void cmd_lcdfill(argbulk) char *argbulk; { int argc; char *argv[6]; u_long pixval; int xstart, xend, ystart, yend; int npix; if (parse_args(argbulk, 1, 5, argv, &argc) < 0) return; if (parse_hexarg(argv[0], 4, &pixval) < 0) { printf("ERROR: arg1 must be a valid 16-bit hex value\n"); return; } switch (argc) { case 1: xstart = ystart = 0; xend = 95; yend = 63; break; case 5: xstart = atoi(argv[1]); if (xstart < 0 || xstart > 95) { range_err: printf("ERROR: coordinate arg out of range\n"); return; } xend = atoi(argv[2]); if (xend < 0 || xend > 95) goto range_err; ystart = atoi(argv[3]); if (ystart < 0 || ystart > 63) goto range_err; yend = atoi(argv[4]); if (yend < 0 || yend > 63) goto range_err; if (xend < xstart || yend < ystart) { printf("ERROR: negative range\n"); return; } break; default: printf("ERROR: wrong number of arguments\n"); return; } set_lcd_addr_region(xstart, xend, ystart, yend); npix = (xend + 1 - xstart) * (yend + 1 - ystart); while (npix--) send_pixel_value(pixval); } void cmd_hbars() { int i, j, k, p; /* * The result of this command should be 8 horizontal bars * in the natural RGB order. */ set_lcd_addr_region(16, 79, 0, 63); for (i = 0; i < 8; i++) { for (j = 0; j < 8; j++) { p = 0; if (i & 4) p |= 0xF800; if (i & 2) p |= 0x07E0; if (i & 1) p |= 0x001F; for (k = 0; k < 64; k++) send_pixel_value(p); } } } void cmd_vbars() { int i, j, k, p; /* * The result of this command should be 8 vertical bars * in the natural RGB order. */ set_lcd_addr_region(16, 79, 0, 63); for (i = 0; i < 64; i++) { for (j = 0; j < 8; j++) { p = 0; if (j & 4) p |= 0xF800; if (j & 2) p |= 0x07E0; if (j & 1) p |= 0x001F; for (k = 0; k < 8; k++) send_pixel_value(p); } } }