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Move more UART-based keyboards to use timeout correctly. (#17329)

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Co-authored-by: Tomasz Janeczko <tomasz.j@hey.com>
This commit is contained in:
Tomasz Janeczko 2022-06-08 22:51:41 +01:00 • committed by GitHub
parent f6a7bf2a83
commit 6567b21688
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GPG key ID: 4AEE18F83AFDEB23
13 changed files with 111 additions and 31 deletions
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13
keyboards/mitosis/matrix.c
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@ -20,6 +20,8 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "matrix.h"
#include "uart.h"
#define UART_MATRIX_RESPONSE_TIMEOUT 10000
void matrix_init_custom(void) {
uart_init(1000000);
}
@ -34,18 +36,23 @@ bool matrix_scan_custom(matrix_row_t current_matrix[]) {
//trust the external keystates entirely, erase the last data
uint8_t uart_data[11] = {0};
//there are 10 bytes corresponding to 10 columns, and an end byte
//there are 10 bytes corresponding to 10 columns, and then an end byte
for (uint8_t i = 0; i < 11; i++) {
//wait for the serial data, timeout if it's been too long
//this only happened in testing with a loose wire, but does no
//harm to leave it in here
while (!uart_available()) {
timeout++;
if (timeout > 10000) {
if (timeout > UART_MATRIX_RESPONSE_TIMEOUT) {
break;
}
}
uart_data[i] = uart_read();
if (timeout < UART_MATRIX_RESPONSE_TIMEOUT) {
uart_data[i] = uart_read();
} else {
uart_data[i] = 0x00;
}
}
//check for the end packet, the key state bytes use the LSBs, so 0xE0