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-rw-r--r--anzeige.c91
-rw-r--r--fonts.h99
2 files changed, 141 insertions, 49 deletions
diff --git a/anzeige.c b/anzeige.c
index cddc0a8..55c234a 100644
--- a/anzeige.c
+++ b/anzeige.c
@@ -24,6 +24,8 @@
#include <string.h>
#include <pthread.h>
+#include "fonts.h"
+
#define PAGE_SIZE (4*1024)
#define BLOCK_SIZE (4*1024)
@@ -37,7 +39,7 @@ int mem_fd;
void *gpio_map;
typedef struct {
- char buf[2][35];
+ char buf[3][40];
int should_buf, is_buf, keep_running;
} t_display_data;
@@ -74,13 +76,7 @@ void printButton(int g)
int main(int argc, char **argv)
{
pthread_t thread_id;
- t_display_data display_data = {
- "abcdefghijklmnopqrstuvwxyzabcdefghi",
- "ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHI",
- 0,
- 0,
- 1
- };
+ t_display_data display_data;
#ifndef SKIP_GPIO
// Set up gpi pointer for direct register access
@@ -110,15 +106,18 @@ int main(int argc, char **argv)
INP_GPIO(SENSE_PIN);
#endif
+ for (int i=0; i<3; i++)
+ memset(display_data.buf[i],0,40);
+ display_data.is_buf = 0;
+ display_data.should_buf = 0;
+ display_data.keep_running = 1;
pthread_create(&thread_id, NULL, put_on_display, &display_data);
for (int i=0; i<20; i++) {
- usleep(500000);
- if (display_data.should_buf == display_data.is_buf) {
- for (int j=0; j<35; j++)
- display_data.buf[1-display_data.is_buf][j] -= 1;
- }
- display_data.should_buf ^= 0x01;
+ usleep(2500000);
+ for (int j=0; j<39; j++)
+ display_data.buf[(display_data.should_buf+1)%3][j] = symbols[(40*i+j)%sizeof(symbols)];
+ display_data.should_buf = (display_data.should_buf+1)%3;
}
display_data.keep_running = 0;
@@ -186,51 +185,45 @@ void drop_privileges()
void *put_on_display(void *param)
{
t_display_data *display_data = param;
- char *raw_output;
- int line;
-
- raw_output = malloc(7*(5+1));
- if (raw_output == NULL) {
- perror("malloc failed");
- exit(-1);
- }
+ int line, column;
while (display_data -> keep_running) {
#ifdef SKIP_GPIO
- printf("\n");
+ usleep(100000);
+ printf("=\n");
#endif
display_data -> is_buf = display_data -> should_buf;
+#ifdef SKIP_GPIO
+ for (line=6; line>=0; line--) {
+ for (column=0; column<40; column++) {
+ if ((*(display_data -> buf[display_data -> is_buf] + column)>>line) & 0x01)
+ printf("X");
+ else
+ printf(".");
+#else
for (line=0; line<7; line++) {
- raw_output[line*6] = 1<<line;
- memmove(raw_output+1+6*line,&(display_data -> buf[display_data -> is_buf][5*line]),5);
- }
- for (line=0; line<7; line++) {
-#ifndef SKIP_GPIO
- GPIO_CLR = 1<<GATE_PIN; // Licht an
+ GPIO_CLR = 1<<GATE_PIN; // Licht an
+ for (column=0; column<8; column++) {
+ GPIO_CLR = 1<<SER_CLK_PIN;
+ GPIO_ALTER(column == line) = 1<<SER_DAT_PIN;
+ GPIO_SET = 1<<SER_CLK_PIN;
+ }
+ for (column=39; column>=0; column--) {
+ GPIO_CLR = 1<<SER_CLK_PIN;
+ GPIO_ALTER((*(display_data -> buf[display_data -> is_buf] + column)>>line) & 0x01) = 1<<SER_DAT_PIN;
+ GPIO_SET = 1<<SER_CLK_PIN;
#endif
- for (int byte=0; byte<6; byte++) {
-#ifndef SKIP_GPIO
- for (int bit=0; bit<8; bit++) {
- GPIO_CLR = 1<<SER_CLK_PIN;
- GPIO_ALTER((*(raw_output+6*line+byte)>>bit) & 0x01) = 1<<SER_DAT_PIN;
- GPIO_SET = 1<<SER_CLK_PIN;
- }
+ }
+ usleep(1000);
+#ifdef SKIP_GPIO
+ printf("\n");
#else
- if (byte==0)
- printf(" %02x ", *(raw_output+6*line+byte));
- else
- printf("%c", *(raw_output+6*line+byte));
+ GPIO_SET = 1<<GATE_PIN; // Licht aus
+ GPIO_CLR = 1<<PAR_CLK_PIN;
+ GPIO_SET = 1<<PAR_CLK_PIN;
#endif
- }
- usleep(1000);
-#ifndef SKIP_GPIO
- GPIO_SET = 1<<GATE_PIN; // Licht aus
- GPIO_CLR = 1<<PAR_CLK_PIN;
- GPIO_SET = 1<<PAR_CLK_PIN;
-#endif
- }
+ }
}
- free(raw_output);
return NULL;
} // put_on_screen
diff --git a/fonts.h b/fonts.h
new file mode 100644
index 0000000..e71823f
--- /dev/null
+++ b/fonts.h
@@ -0,0 +1,99 @@
+char const symbols[(128-32)*5] = {
+ 0x00,0x00,0x00,0x00,0x00, // space
+ 0x00,0x00,0x7d,0x00,0x00, // !
+ 0x00,0x60,0x00,0x60,0x00, // "
+ 0x14,0x3e,0x14,0x3e,0x14, // #
+ 0x12,0x7f,0x2a,0x7f,0x24, // $
+ 0x62,0x64,0x08,0x13,0x23, // %
+ 0x06,0x39,0x55,0x62,0x05, // &
+ 0x00,0x00,0x60,0x00,0x00, // '
+ 0x00,0x1c,0x22,0x41,0x00, // (
+ 0x00,0x41,0x22,0x1c,0x00, // )
+ 0x22,0x14,0x3e,0x14,0x22, // *
+ 0x08,0x08,0x3e,0x08,0x08, // +
+ 0x00,0x01,0x02,0x00,0x00, // ,
+ 0x08,0x08,0x08,0x08,0x08, // -
+ 0x00,0x00,0x02,0x00,0x00, // .
+ 0x00,0x03,0x1c,0x60,0x00, // /
+ 0x3c,0x63,0x41,0x63,0x3c, // 0
+ 0x00,0x21,0x7f,0x01,0x00, // 1
+ 0x23,0x45,0x45,0x49,0x31, // 2
+ 0x22,0x49,0x49,0x49,0x36, // 3
+ 0x0c,0x34,0x7f,0x04,0x04, // 4
+ 0x00,0x00,0x00,0x00,0x00, // 5
+ 0x00,0x00,0x00,0x00,0x00, // 6
+ 0x00,0x00,0x00,0x00,0x00, // 7
+ 0x00,0x00,0x00,0x00,0x00, // 8
+ 0x00,0x00,0x00,0x00,0x00, // 9
+ 0x00,0x00,0x00,0x00,0x00, // :
+ 0x00,0x00,0x00,0x00,0x00, // ;
+ 0x00,0x00,0x00,0x00,0x00, // <
+ 0x00,0x00,0x00,0x00,0x00, // =
+ 0x00,0x00,0x00,0x00,0x00, // >
+ 0x00,0x00,0x00,0x00,0x00, // ?
+ 0x00,0x00,0x00,0x00,0x00, // @
+ 0x00,0x00,0x00,0x00,0x00, // A
+ 0x00,0x00,0x00,0x00,0x00, // B
+ 0x00,0x00,0x00,0x00,0x00, // C
+ 0x00,0x00,0x00,0x00,0x00, // D
+ 0x00,0x00,0x00,0x00,0x00, // E
+ 0x00,0x00,0x00,0x00,0x00, // F
+ 0x00,0x00,0x00,0x00,0x00, // G
+ 0x00,0x00,0x00,0x00,0x00, // H
+ 0x00,0x00,0x00,0x00,0x00, // I
+ 0x00,0x00,0x00,0x00,0x00, // J
+ 0x00,0x00,0x00,0x00,0x00, // K
+ 0x00,0x00,0x00,0x00,0x00, // L
+ 0x00,0x00,0x00,0x00,0x00, // M
+ 0x00,0x00,0x00,0x00,0x00, // N
+ 0x00,0x00,0x00,0x00,0x00, // O
+ 0x00,0x00,0x00,0x00,0x00, // P
+ 0x00,0x00,0x00,0x00,0x00, // Q
+ 0x00,0x00,0x00,0x00,0x00, // R
+ 0x00,0x00,0x00,0x00,0x00, // S
+ 0x00,0x00,0x00,0x00,0x00, // T
+ 0x00,0x00,0x00,0x00,0x00, // U
+ 0x00,0x00,0x00,0x00,0x00, // V
+ 0x00,0x00,0x00,0x00,0x00, // W
+ 0x00,0x00,0x00,0x00,0x00, // X
+ 0x00,0x00,0x00,0x00,0x00, // Y
+ 0x00,0x00,0x00,0x00,0x00, // Z
+ 0x00,0x00,0x00,0x00,0x00, // [
+ 0x00,0x00,0x00,0x00,0x00, // backslash
+ 0x00,0x00,0x00,0x00,0x00, // ]
+ 0x00,0x00,0x00,0x00,0x00, // ^
+ 0x00,0x00,0x00,0x00,0x00, // _
+ 0x00,0x00,0x00,0x00,0x00, // `
+ 0x00,0x00,0x00,0x00,0x00, // a
+ 0x00,0x00,0x00,0x00,0x00, // b
+ 0x00,0x00,0x00,0x00,0x00, // c
+ 0x00,0x00,0x00,0x00,0x00, // d
+ 0x00,0x00,0x00,0x00,0x00, // e
+ 0x00,0x00,0x00,0x00,0x00, // f
+ 0x00,0x00,0x00,0x00,0x00, // g
+ 0x00,0x00,0x00,0x00,0x00, // h
+ 0x00,0x00,0x00,0x00,0x00, // i
+ 0x00,0x00,0x00,0x00,0x00, // j
+ 0x00,0x00,0x00,0x00,0x00, // k
+ 0x00,0x00,0x00,0x00,0x00, // l
+ 0x00,0x00,0x00,0x00,0x00, // m
+ 0x00,0x00,0x00,0x00,0x00, // n
+ 0x00,0x00,0x00,0x00,0x00, // o
+ 0x00,0x00,0x00,0x00,0x00, // p
+ 0x00,0x00,0x00,0x00,0x00, // q
+ 0x00,0x00,0x00,0x00,0x00, // r
+ 0x00,0x00,0x00,0x00,0x00, // s
+ 0x00,0x00,0x00,0x00,0x00, // t
+ 0x00,0x00,0x00,0x00,0x00, // u
+ 0x00,0x00,0x00,0x00,0x00, // v
+ 0x00,0x00,0x00,0x00,0x00, // w
+ 0x00,0x00,0x00,0x00,0x00, // x
+ 0x00,0x00,0x00,0x00,0x00, // y
+ 0x00,0x00,0x00,0x00,0x00, // z
+ 0x00,0x00,0x00,0x00,0x00, // {
+ 0x00,0x00,0x00,0x00,0x00, // |
+ 0x00,0x00,0x00,0x00,0x00, // }
+ 0x00,0x00,0x00,0x00,0x00, // ~
+ 0x00,0x00,0x00,0x00,0x00 // DEL
+};
+
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-11-21 23:36:50 +0000