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[/] [pci/] [tags/] [rel_11/] [apps/] [sw/] [driver/] [slide.c] - Rev 21
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#include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <malloc.h> #include <unistd.h> #include <stdio.h> #include <spartan_kint.h> #include <sys/ioctl.h> int main() { int result ; int fd ; int i = 0; char buff[640*480] ; int palette[256] ; int c; unsigned long value ; fd = open("/dev/spartan", O_RDWR) ; if (fd < 0) { printf("Error: Opening device /dev/spartan\n"); return fd ; } while (i < 54) { c = getchar(); if (c == EOF) error("Early end-of-file."); if ((i == 0) && (c != 0x42)) error("Not BMP format."); if ((i == 1) && (c != 0x4d)) error("Not BMP format."); if ((i == 2) && (c != 0x38)) error("Not 8-bit BMP format."); if ((i == 10) && (c != 0x36)) error("Not limited to 64 colors (6 bits)."); if ((i == 11) && (c != 0x01)) error("Not limited to 64 colors (6 bits)."); if ((i == 18) && (c != 0x80)) error("Not 640 pixels horizontal resolution."); if ((i == 19) && (c != 0x02)) error("Not 640 pixels horizontal resolution."); if ((i == 22) && (c != 0xe0)) error("Not 480 pixels vertical resolution."); if ((i == 23) && (c != 0x01)) error("Not 480 pixels vertical resolution."); i++; } // activate resource 2 value = 0x00000002 ; result = ioctl(fd, SPARTAN_IOC_CURRESSET, value) ; /* Set palette */ lseek(fd, SPARTAN_CRT_PALETTE_BASE, 0); while (i < 310) { if (c == EOF) error("Early end-of-file."); palette[(i - 54)/4] = ((getchar() >> 4) << 12) | ((getchar() >> 4) << 8) | ((getchar() >> 4) << 4); printf("%.4x\n", palette[(i - 54)/4]); getchar(); i+=4; } while (i < 307510) { buff[sizeof(buff) - (i - 310)] = (char)getchar(); i++; } if(write(fd, palette, 0x400) != 0x400) { printf("Error writing device /dev/spartan\n"); return -1; } ioctl(fd, SPARTAN_IOC_SET_VIDEO_BUFF, buff) ; close(fd); return 0; }
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