altos: Use stdbool true/false instead of TRUE/FALSE

[fw/altos] / src / stm / ao_serial_stm.c

diff --git a/src/stm/ao_serial_stm.c b/src/stm/ao_serial_stm.c
index c625471e4b1e9ce39caaf6b7c17a346be76e6953..2afee5b5da3bd9cc2b9b957e3056cdd1cbc2f9b7 100644 (file)
--- a/src/stm/ao_serial_stm.c
+++ b/src/stm/ao_serial_stm.c
@@ -60,13 +60,13 @@ _ao_usart_cts(struct ao_stm_usart *usart)
 #endif
 
 static void
-_ao_usart_rx(struct ao_stm_usart *usart, int stdin)
+_ao_usart_rx(struct ao_stm_usart *usart, int is_stdin)
 {
        if (usart->reg->sr & (1 << STM_USART_SR_RXNE)) {
                if (!ao_fifo_full(usart->rx_fifo)) {
                        ao_fifo_insert(usart->rx_fifo, usart->reg->dr);
                        ao_wakeup(&usart->rx_fifo);
-                       if (stdin)
+                       if (is_stdin)
                                ao_wakeup(&ao_stdin_ready);
 #if HAS_SERIAL_SW_FLOW
                        /* If the fifo is nearly full, turn off RTS and wait
@@ -84,9 +84,9 @@ _ao_usart_rx(struct ao_stm_usart *usart, int stdin)
 }
 
 static void
-ao_usart_isr(struct ao_stm_usart *usart, int stdin)
+ao_usart_isr(struct ao_stm_usart *usart, int is_stdin)
 {
-       _ao_usart_rx(usart, stdin);
+       _ao_usart_rx(usart, is_stdin);
 
        if (!_ao_usart_tx_start(usart))
                usart->reg->cr1 &= ~(1<< STM_USART_CR1_TXEIE);
@@ -195,7 +195,7 @@ ao_usart_set_speed(struct ao_stm_usart *usart, uint8_t speed)
 }
 
 static void
-ao_usart_init(struct ao_stm_usart *usart)
+ao_usart_init(struct ao_stm_usart *usart, int hw_flow)
 {
        usart->reg->cr1 = ((0 << STM_USART_CR1_OVER8) |
                          (1 << STM_USART_CR1_UE) |
@@ -236,6 +236,10 @@ ao_usart_init(struct ao_stm_usart *usart)
                          (0 << STM_USART_CR3_IREN) |
                          (0 << STM_USART_CR3_EIE));
 
+       if (hw_flow)
+               usart->reg->cr3 |= ((1 << STM_USART_CR3_CTSE) |
+                                   (1 << STM_USART_CR3_RTSE));
+
        /* Pick a 9600 baud rate */
        ao_usart_set_speed(usart, AO_SERIAL_SPEED_9600);
 }
@@ -244,8 +248,6 @@ ao_usart_init(struct ao_stm_usart *usart)
 static void
 ao_usart_set_flow(struct ao_stm_usart *usart)
 {
-       usart->reg->cr3 |= ((1 << STM_USART_CR3_CTSE) |
-                           (1 << STM_USART_CR3_RTSE));
 }
 #endif
 
@@ -441,7 +443,7 @@ ao_serial_init(void)
        stm_rcc.apb2enr |= (1 << STM_RCC_APB2ENR_USART1EN);
 
        ao_stm_usart1.reg = &stm_usart1;
-       ao_usart_init(&ao_stm_usart1);
+       ao_usart_init(&ao_stm_usart1, 0);
 
        stm_nvic_set_enable(STM_ISR_USART1_POS);
        stm_nvic_set_priority(STM_ISR_USART1_POS, AO_STM_NVIC_MED_PRIORITY);
@@ -494,10 +496,7 @@ ao_serial_init(void)
        stm_rcc.apb1enr |= (1 << STM_RCC_APB1ENR_USART2EN);
 
        ao_stm_usart2.reg = &stm_usart2;
-       ao_usart_init(&ao_stm_usart2);
-#if USE_SERIAL_2_FLOW && !USE_SERIAL_2_SW_FLOW
-       ao_usart_set_flow(&ao_stm_usart2);
-#endif
+       ao_usart_init(&ao_stm_usart2, USE_SERIAL_2_FLOW && !USE_SERIAL_2_SW_FLOW);
 
        stm_nvic_set_enable(STM_ISR_USART2_POS);
        stm_nvic_set_priority(STM_ISR_USART2_POS, AO_STM_NVIC_MED_PRIORITY);
@@ -541,7 +540,7 @@ ao_serial_init(void)
        stm_rcc.apb1enr |= (1 << STM_RCC_APB1ENR_USART3EN);
 
        ao_stm_usart3.reg = &stm_usart3;
-       ao_usart_init(&ao_stm_usart3);
+       ao_usart_init(&ao_stm_usart3, 0);
 
        stm_nvic_set_enable(STM_ISR_USART3_POS);
        stm_nvic_set_priority(STM_ISR_USART3_POS, AO_STM_NVIC_MED_PRIORITY);