void isr_fifo_get(void *parameter)
{
struct isr_fifo_info *pInfo = (struct isr_fifo_info *) parameter;
pInfo->data = nano_isr_fifo_get(pInfo->fifo_ptr, TICKS_NONE);
}
void uart_console_isr(struct device *unused)
{
ARG_UNUSED(unused);
while (uart_irq_update(uart_console_dev) &&
uart_irq_is_pending(uart_console_dev)) {
static struct uart_console_input *cmd;
uint8_t byte;
int rx;
if (!uart_irq_rx_ready(uart_console_dev)) {
continue;
}
/* Character(s) have been received */
rx = read_uart(uart_console_dev, &byte, 1);
if (rx < 0) {
return;
}
if (uart_irq_input_hook(uart_console_dev, byte) != 0) {
/*
* The input hook indicates that no further processing
* should be done by this handler.
*/
return;
}
if (!cmd) {
cmd = nano_isr_fifo_get(avail_queue, TICKS_NONE);
if (!cmd)
return;
}
/* Handle ANSI escape mode */
if (atomic_test_bit(&esc_state, ESC_ANSI)) {
handle_ansi(byte);
continue;
}
/* Handle escape mode */
if (atomic_test_and_clear_bit(&esc_state, ESC_ESC)) {
switch (byte) {
case ANSI_ESC:
atomic_set_bit(&esc_state, ESC_ANSI);
atomic_set_bit(&esc_state, ESC_ANSI_FIRST);
break;
default:
break;
}
continue;
}
/* Handle special control characters */
if (!isprint(byte)) {
switch (byte) {
case DEL:
if (cur > 0) {
del_char(&cmd->line[--cur], end);
}
break;
case ESC:
atomic_set_bit(&esc_state, ESC_ESC);
break;
case '\r':
cmd->line[cur + end] = '\0';
uart_poll_out(uart_console_dev, '\r');
uart_poll_out(uart_console_dev, '\n');
cur = 0;
end = 0;
nano_isr_fifo_put(lines_queue, cmd);
cmd = NULL;
break;
case '\t':
if (completion_cb && !end) {
cur += completion_cb(cmd->line, cur);
}
break;
default:
break;
}
continue;
}
/* Ignore characters if there's no more buffer space */
if (cur + end < sizeof(cmd->line) - 1) {
insert_char(&cmd->line[cur++], byte, end);
}
}
}
void isr_fifo_get(void *parameter)
{
ISR_FIFO_INFO *pInfo = (ISR_FIFO_INFO *) parameter;
pInfo->data = nano_isr_fifo_get(pInfo->fifo_ptr);
}