^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Filename: cfag12864b-example.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Version: 0.1.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Description: cfag12864b LCD userspace example program
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Author: Copyright (C) Miguel Ojeda Sandonis
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Date: 2006-10-31
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * ------------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * start of cfag12864b code
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * ------------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <fcntl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <unistd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <sys/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <sys/stat.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <sys/mman.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define CFAG12864B_WIDTH (128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define CFAG12864B_HEIGHT (64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define CFAG12864B_SIZE (128 * 64 / 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define CFAG12864B_BPB (8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define CFAG12864B_ADDRESS(x, y) ((y) * CFAG12864B_WIDTH / \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) CFAG12864B_BPB + (x) / CFAG12864B_BPB)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define CFAG12864B_BIT(n) (((unsigned char) 1) << (n))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #undef CFAG12864B_DOCHECK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #ifdef CFAG12864B_DOCHECK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define CFAG12864B_CHECK(x, y) ((x) < CFAG12864B_WIDTH && \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) (y) < CFAG12864B_HEIGHT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define CFAG12864B_CHECK(x, y) (1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) int cfag12864b_fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) unsigned char * cfag12864b_mem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) unsigned char cfag12864b_buffer[CFAG12864B_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) * init a cfag12864b framebuffer device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) * No error: return = 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) * Unable to open: return = -1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) * Unable to mmap: return = -2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) static int cfag12864b_init(char *path)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) cfag12864b_fd = open(path, O_RDWR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) if (cfag12864b_fd == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) cfag12864b_mem = mmap(0, CFAG12864B_SIZE, PROT_READ | PROT_WRITE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) MAP_SHARED, cfag12864b_fd, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) if (cfag12864b_mem == MAP_FAILED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) close(cfag12864b_fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) return -2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) * exit a cfag12864b framebuffer device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) static void cfag12864b_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) munmap(cfag12864b_mem, CFAG12864B_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) close(cfag12864b_fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) * set (x, y) pixel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) static void cfag12864b_set(unsigned char x, unsigned char y)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) if (CFAG12864B_CHECK(x, y))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) cfag12864b_buffer[CFAG12864B_ADDRESS(x, y)] |=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) CFAG12864B_BIT(x % CFAG12864B_BPB);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) * unset (x, y) pixel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) static void cfag12864b_unset(unsigned char x, unsigned char y)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) if (CFAG12864B_CHECK(x, y))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) cfag12864b_buffer[CFAG12864B_ADDRESS(x, y)] &=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) ~CFAG12864B_BIT(x % CFAG12864B_BPB);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) * is set (x, y) pixel?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) * Pixel off: return = 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) * Pixel on: return = 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) static unsigned char cfag12864b_isset(unsigned char x, unsigned char y)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) if (CFAG12864B_CHECK(x, y))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) if (cfag12864b_buffer[CFAG12864B_ADDRESS(x, y)] &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) CFAG12864B_BIT(x % CFAG12864B_BPB))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) * not (x, y) pixel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) static void cfag12864b_not(unsigned char x, unsigned char y)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) if (cfag12864b_isset(x, y))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) cfag12864b_unset(x, y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) cfag12864b_set(x, y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) * fill (set all pixels)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) static void cfag12864b_fill(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) unsigned short i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) for (i = 0; i < CFAG12864B_SIZE; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) cfag12864b_buffer[i] = 0xFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) * clear (unset all pixels)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) static void cfag12864b_clear(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) unsigned short i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) for (i = 0; i < CFAG12864B_SIZE; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) cfag12864b_buffer[i] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) * format a [128*64] matrix
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) * Pixel off: src[i] = 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) * Pixel on: src[i] > 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) static void cfag12864b_format(unsigned char * matrix)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) unsigned char i, j, n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) for (i = 0; i < CFAG12864B_HEIGHT; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) for (j = 0; j < CFAG12864B_WIDTH / CFAG12864B_BPB; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) cfag12864b_buffer[i * CFAG12864B_WIDTH / CFAG12864B_BPB +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) j] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) for (n = 0; n < CFAG12864B_BPB; n++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) if (matrix[i * CFAG12864B_WIDTH +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) j * CFAG12864B_BPB + n])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) cfag12864b_buffer[i * CFAG12864B_WIDTH /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) CFAG12864B_BPB + j] |=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) CFAG12864B_BIT(n);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) * blit buffer to lcd
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) static void cfag12864b_blit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) memcpy(cfag12864b_mem, cfag12864b_buffer, CFAG12864B_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) * ----------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) * end of cfag12864b code
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) * ----------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) #include <stdio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) #define EXAMPLES 6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) static void example(unsigned char n)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) unsigned short i, j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) unsigned char matrix[CFAG12864B_WIDTH * CFAG12864B_HEIGHT];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) if (n > EXAMPLES)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) printf("Example %i/%i - ", n, EXAMPLES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) switch (n) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) case 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) printf("Draw points setting bits");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) cfag12864b_clear();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) for (i = 0; i < CFAG12864B_WIDTH; i += 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) for (j = 0; j < CFAG12864B_HEIGHT; j += 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) cfag12864b_set(i, j);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) case 2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) printf("Clear the LCD");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) cfag12864b_clear();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) case 3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) printf("Draw rows formatting a [128*64] matrix");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) memset(matrix, 0, CFAG12864B_WIDTH * CFAG12864B_HEIGHT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) for (i = 0; i < CFAG12864B_WIDTH; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) for (j = 0; j < CFAG12864B_HEIGHT; j += 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) matrix[j * CFAG12864B_WIDTH + i] = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) cfag12864b_format(matrix);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) case 4:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) printf("Fill the lcd");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) cfag12864b_fill();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) case 5:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) printf("Draw columns unsetting bits");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) for (i = 0; i < CFAG12864B_WIDTH; i += 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) for (j = 0; j < CFAG12864B_HEIGHT; j++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) cfag12864b_unset(i, j);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) case 6:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) printf("Do negative not-ing all bits");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) for (i = 0; i < CFAG12864B_WIDTH; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) for (j = 0; j < CFAG12864B_HEIGHT; j ++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) cfag12864b_not(i, j);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) puts(" - [Press Enter]");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) int main(int argc, char *argv[])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) unsigned char n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) if (argc != 2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) printf(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) "Syntax: %s fbdev\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) "Usually: /dev/fb0, /dev/fb1...\n", argv[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) if (cfag12864b_init(argv[1])) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) printf("Can't init %s fbdev\n", argv[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) return -2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) for (n = 1; n <= EXAMPLES; n++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) example(n);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) cfag12864b_blit();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) while (getchar() != '\n');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) cfag12864b_exit();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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