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You know what? This, right here, fucking works

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This commit is contained in:
XANTRONIX Development 2016-05-31 19:32:20 -05:00
parent ee796c04e2
commit 68852d460b
4 changed files with 8 additions and 10 deletions
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4
avr/main.c
View file

@ -44,6 +44,8 @@ static inline uint16_t checksum() {
ISR(SPI_STC_vect) {
uint8_t value = SPDR;
uart_putchar(value, NULL);
switch (i) {
case 0: {
if (value == 0x88) {
@ -131,8 +133,6 @@ ISR(SPI_STC_vect) {
}
}
}
uart_putchar(value, NULL);
}
static void setup_clock_external() {

2
include/tabby/avr/uart.h
View file

@ -1,7 +1,7 @@
#ifndef _TABBY_AVR_UART_H
#define _TABBY_AVR_UART_H
#define TABBY_AVR_UART_BAUD 115200
#define TABBY_AVR_UART_BAUD 57600
void uart_init();

2
include/tabby/link.h
View file

@ -11,7 +11,7 @@
#include <tabby/clock.h>
#define TABBY_LINK_BAUD B115200
#define TABBY_LINK_BAUD B57600
int tabby_link_open(const char *dev);

10
src/printer.c
View file

@ -36,22 +36,19 @@ int tabby_printer_packet_recv(int fd, tabby_printer_packet_header *header,
while ((len = tabby_link_recv(fd, &value, 1)) >= 0) {
if (i == 0) {
if (value == 0x83) {
if (value == 0x88) {
header->preamble[0] = value;
i++;
} else {
errno = EIO;
goto error_io;
continue;
}
} else if (i == 1) {
if (value == 0x33) {
header->preamble[1] = value;
i++;
} else {
errno = EIO;
i = 0;
goto error_io;
continue;
}
} else if (i == 2) {
header->type = value;
@ -65,6 +62,7 @@ int tabby_printer_packet_recv(int fd, tabby_printer_packet_header *header,
} else if (i == 5) {
header->size |= value << 8;
i++;
b = 0;
} else if (b < header->size) {
((uint8_t *)body)[b++] = value;