コード例 #1
0
ファイル: esp_sj_uart.c プロジェクト: ywhwang/mongoose-iot
void esp_sj_uart_dispatcher(void *arg) {
  int uart_no = (int) arg;
  struct esp_sj_uart_state *us = &sj_us[uart_no];
  cs_rbuf_t *txb = esp_uart_tx_buf(uart_no);
  us->dispatch_pending = 0;
  esp_uart_dispatch_rx_top(uart_no);
  uint16_t tx_used_before = txb->used;

  /* ignore unused because of CS_DISABLE_JS below */
  (void) tx_used_before;

  esp_uart_dispatch_tx_top(uart_no);
#ifndef CS_DISABLE_JS
  cs_rbuf_t *rxb = esp_uart_rx_buf(uart_no);

  if (us->v7 != NULL) {
    /* Detect the edge of TX buffer becoming empty. */
    if (tx_used_before > 0 && txb->used == 0) {
      v7_val_t txcb = v7_get(us->v7, us->obj, "_txcb", 5);
      if (v7_is_callable(us->v7, txcb)) {
        sj_invoke_cb(us->v7, txcb, us->obj, V7_UNDEFINED);
      }
    }
    if (rxb->used > 0) {
      /* Check for JS recv handler. */
      v7_val_t rxcb = esp_sj_uart_get_recv_handler(uart_no);
      if (v7_is_callable(us->v7, rxcb)) {
        if (!us->recv_pending) {
          us->recv_pending = 1;
          sj_invoke_cb(us->v7, rxcb, us->obj, V7_UNDEFINED);
          /* Note: Callback has not run yet, it has been scheduled. */
        }
      } else if (us->prompt) {
        uint8_t *cp;
        while (rxb != NULL && cs_rbuf_get(rxb, 1, &cp) == 1) {
          char c = (char) *cp;
          cs_rbuf_consume(rxb, 1);
          sj_prompt_process_char(c);
          /* UART could've been re-initialized by the command from prompt. */
          rxb = esp_uart_rx_buf(uart_no);
        }
      }
    }
  }
#endif
  esp_uart_dispatch_bottom(uart_no);
}
コード例 #2
0
ファイル: esp_sj_uart.c プロジェクト: MrZANE42/smart.js
static enum v7_err UART_recv(struct v7 *v7, v7_val_t *res) {
  struct esp_sj_uart_state *us;
  enum v7_err ret = esp_sj_uart_get_state(v7, &us);
  if (ret != V7_OK) return ret;

  cs_rbuf_t *rxb = esp_uart_rx_buf(us->uart_no);
  size_t len = MIN((size_t) v7_to_number(v7_arg(v7, 0)), rxb->used);
  uint8_t *data;
  len = cs_rbuf_get(rxb, len, &data);
  *res = v7_mk_string(v7, (const char *) data, len, 1 /* copy */);
  cs_rbuf_consume(rxb, len);
  us->recv_pending = 0;
  /* This is required to unblock interrupts after buffer has been filled.
   * And won't hurt in general. */
  esp_sj_uart_schedule_dispatcher(us->uart_no);
  return V7_OK;
}