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Merge pull request #1504 from stevew817/feature/fix/serial_NC 

[Silicon Labs] Fix regression towards older platforms
pull/1506/head
Martin Kojtal 2016-01-15 14:12:16 +01:00
parent 45dbe35006 7d8b2c0ca4
commit 170003c08d
1 changed files with 70 additions and 91 deletions
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161
libraries/mbed/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/serial_api.c
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@ -83,6 +83,7 @@ static void uart_irq(UARTName, SerialIrq);
static uint8_t serial_get_index(serial_t *obj);
static void serial_enable(serial_t *obj, uint8_t enable);
static void serial_enable_pins(serial_t *obj, uint8_t enable);
static void serial_set_route(serial_t *obj);
static IRQn_Type serial_get_rx_irq_index(serial_t *obj);
static IRQn_Type serial_get_tx_irq_index(serial_t *obj);
static CMU_Clock_TypeDef serial_get_clock(serial_t *obj);
@ -482,7 +483,7 @@ static void serial_enable_pins(serial_t *obj, uint8_t enable)
}
/* Set DOUT first to prevent glitches */
if(obj->serial.tx_pin != NC) {
GPIO_PinOutSet((GPIO_Port_TypeDef)(obj->serial.tx_pin >> 4 & 0xF), obj->serial.tx_pin & 0xF);
GPIO_PinOutSet((GPIO_Port_TypeDef)(obj->serial.tx_pin >> 4 & 0xF), obj->serial.tx_pin & 0xF);
pin_mode(obj->serial.tx_pin, PushPull);
}
} else {
@ -495,6 +496,69 @@ static void serial_enable_pins(serial_t *obj, uint8_t enable)
}
}
static void serial_set_route(serial_t *obj)
{
/* Enable pins for UART at correct location */
if(LEUART_REF_VALID(obj->serial.periph.leuart)) {
#ifdef _LEUART_ROUTE_LOCATION_SHIFT
obj->serial.periph.leuart->ROUTE = (obj->serial.location << _LEUART_ROUTE_LOCATION_SHIFT);
if(obj->serial.tx_pin != (uint32_t)NC) {
obj->serial.periph.leuart->ROUTE |= LEUART_ROUTE_TXPEN;
} else {
obj->serial.periph.leuart->ROUTE &= ~LEUART_ROUTE_TXPEN;
}
if(obj->serial.rx_pin != (uint32_t)NC) {
obj->serial.periph.leuart->ROUTE |= LEUART_ROUTE_RXPEN;
} else {
obj->serial.periph.leuart->CMD = LEUART_CMD_RXBLOCKEN;
obj->serial.periph.leuart->ROUTE &= ~LEUART_ROUTE_RXPEN;
}
#else
if(obj->serial.location_tx != NC) {
obj->serial.periph.leuart->ROUTELOC0 = (obj->serial.periph.leuart->ROUTELOC0 & (~_LEUART_ROUTELOC0_TXLOC_MASK)) | (obj->serial.location_tx << _LEUART_ROUTELOC0_TXLOC_SHIFT);
obj->serial.periph.leuart->ROUTEPEN = (obj->serial.periph.leuart->ROUTEPEN & (~_LEUART_ROUTEPEN_TXPEN_MASK)) | LEUART_ROUTEPEN_TXPEN;
} else {
obj->serial.periph.leuart->ROUTEPEN = (obj->serial.periph.leuart->ROUTEPEN & (~_LEUART_ROUTEPEN_TXPEN_MASK));
}
if(obj->serial.location_rx != NC) {
obj->serial.periph.leuart->ROUTELOC0 = (obj->serial.periph.leuart->ROUTELOC0 & (~_LEUART_ROUTELOC0_RXLOC_MASK)) | (obj->serial.location_rx << _LEUART_ROUTELOC0_RXLOC_SHIFT);
obj->serial.periph.leuart->ROUTEPEN = (obj->serial.periph.leuart->ROUTEPEN & (~_LEUART_ROUTEPEN_RXPEN_MASK)) | LEUART_ROUTEPEN_RXPEN;
} else {
obj->serial.periph.leuart->CMD = LEUART_CMD_RXBLOCKEN;
obj->serial.periph.leuart->ROUTEPEN = (obj->serial.periph.leuart->ROUTEPEN & (~_LEUART_ROUTEPEN_RXPEN_MASK));
}
#endif
} else {
#ifdef _USART_ROUTE_LOCATION_SHIFT
obj->serial.periph.uart->ROUTE = (obj->serial.location << _LEUART_ROUTE_LOCATION_SHIFT);
if(obj->serial.tx_pin != (uint32_t)NC) {
obj->serial.periph.uart->ROUTE |= USART_ROUTE_TXPEN;
} else {
obj->serial.periph.uart->ROUTE &= ~USART_ROUTE_TXPEN;
}
if(obj->serial.rx_pin != (uint32_t)NC) {
obj->serial.periph.uart->ROUTE |= USART_ROUTE_RXPEN;
} else {
obj->serial.periph.uart->CMD = USART_CMD_RXBLOCKEN;
obj->serial.periph.uart->ROUTE &= ~USART_ROUTE_RXPEN;
}
#else
if(obj->serial.location_tx != NC) {
obj->serial.periph.uart->ROUTELOC0 = (obj->serial.periph.uart->ROUTELOC0 & (~_USART_ROUTELOC0_TXLOC_MASK)) | (obj->serial.location_tx << _USART_ROUTELOC0_TXLOC_SHIFT);
obj->serial.periph.uart->ROUTEPEN = (obj->serial.periph.uart->ROUTEPEN & (~_USART_ROUTEPEN_TXPEN_MASK)) | USART_ROUTEPEN_TXPEN;
} else {
obj->serial.periph.uart->ROUTEPEN = (obj->serial.periph.uart->ROUTEPEN & (~_USART_ROUTEPEN_TXPEN_MASK));
}
if(obj->serial.location_rx != NC) {
obj->serial.periph.uart->ROUTELOC0 = (obj->serial.periph.uart->ROUTELOC0 & (~_USART_ROUTELOC0_RXLOC_MASK)) | (obj->serial.location_rx << _USART_ROUTELOC0_RXLOC_SHIFT);
obj->serial.periph.uart->ROUTEPEN = (obj->serial.periph.uart->ROUTEPEN & (~_USART_ROUTEPEN_RXPEN_MASK)) | USART_ROUTEPEN_RXPEN;
} else {
obj->serial.periph.uart->CMD = USART_CMD_RXBLOCKEN;
obj->serial.periph.uart->ROUTEPEN = (obj->serial.periph.uart->ROUTEPEN & (~_USART_ROUTEPEN_RXPEN_MASK));
}
#endif
}
}
void serial_init(serial_t *obj, PinName tx, PinName rx)
{
@ -535,56 +599,13 @@ void serial_init(serial_t *obj, PinName tx, PinName rx)
uart_init(obj, baudrate, ParityNone, 1);
/* Enable pins for UART at correct location */
serial_set_route(obj);
/* Reset interrupts */
if(LEUART_REF_VALID(obj->serial.periph.leuart)) {
#ifdef _LEUART_ROUTE_LOCATION_SHIFT
obj->serial.periph.leuart->ROUTE = (obj->serial.location << _LEUART_ROUTE_LOCATION_SHIFT);
if(tx != (uint32_t)NC) {
obj->serial.periph.leuart->ROUTE |= LEUART_ROUTE_TXPEN;
}
if(rx != (uint32_t)NC) {
obj->serial.periph.leuart->ROUTE |= LEUART_ROUTE_RXPEN;
}
#else
if(obj->serial.location_tx != NC) {
obj->serial.periph.leuart->ROUTELOC0 = (obj->serial.periph.leuart->ROUTELOC0 & (~_LEUART_ROUTELOC0_TXLOC_MASK)) | (obj->serial.location_tx << _LEUART_ROUTELOC0_TXLOC_SHIFT);
obj->serial.periph.leuart->ROUTEPEN = (obj->serial.periph.leuart->ROUTEPEN & (~_LEUART_ROUTEPEN_TXPEN_MASK)) | LEUART_ROUTEPEN_TXPEN;
} else {
obj->serial.periph.leuart->ROUTEPEN = (obj->serial.periph.leuart->ROUTEPEN & (~_LEUART_ROUTEPEN_TXPEN_MASK));
}
if(obj->serial.location_rx != NC) {
obj->serial.periph.leuart->ROUTELOC0 = (obj->serial.periph.leuart->ROUTELOC0 & (~_LEUART_ROUTELOC0_RXLOC_MASK)) | (obj->serial.location_rx << _LEUART_ROUTELOC0_RXLOC_SHIFT);
obj->serial.periph.leuart->ROUTEPEN = (obj->serial.periph.leuart->ROUTEPEN & (~_LEUART_ROUTEPEN_RXPEN_MASK)) | LEUART_ROUTEPEN_RXPEN;
} else {
obj->serial.periph.leuart->CMD = LEUART_CMD_RXBLOCKEN;
obj->serial.periph.leuart->ROUTEPEN = (obj->serial.periph.leuart->ROUTEPEN & (~_LEUART_ROUTEPEN_RXPEN_MASK));
}
#endif
obj->serial.periph.leuart->IFC = LEUART_IFC_TXC;
obj->serial.periph.leuart->CTRL |= LEUART_CTRL_RXDMAWU | LEUART_CTRL_TXDMAWU;
} else {
#ifdef _USART_ROUTE_LOCATION_SHIFT
obj->serial.periph.uart->ROUTE = (obj->serial.location << _USART_ROUTE_LOCATION_SHIFT);
if(tx != (uint32_t)NC) {
obj->serial.periph.uart->ROUTE |= USART_ROUTE_TXPEN;
}
if(rx != (uint32_t)NC) {
obj->serial.periph.uart->ROUTE |= USART_ROUTE_RXPEN;
}
#else
if(obj->serial.location_tx != NC) {
obj->serial.periph.uart->ROUTELOC0 = (obj->serial.periph.uart->ROUTELOC0 & (~_USART_ROUTELOC0_TXLOC_MASK)) | (obj->serial.location_tx << _USART_ROUTELOC0_TXLOC_SHIFT);
obj->serial.periph.uart->ROUTEPEN = (obj->serial.periph.uart->ROUTEPEN & (~_USART_ROUTEPEN_TXPEN_MASK)) | USART_ROUTEPEN_TXPEN;
} else {
obj->serial.periph.uart->ROUTEPEN = (obj->serial.periph.uart->ROUTEPEN & (~_USART_ROUTEPEN_TXPEN_MASK));
}
if(obj->serial.location_rx != NC) {
obj->serial.periph.uart->ROUTELOC0 = (obj->serial.periph.uart->ROUTELOC0 & (~_USART_ROUTELOC0_RXLOC_MASK)) | (obj->serial.location_rx << _USART_ROUTELOC0_RXLOC_SHIFT);
obj->serial.periph.uart->ROUTEPEN = (obj->serial.periph.uart->ROUTEPEN & (~_USART_ROUTEPEN_RXPEN_MASK)) | USART_ROUTEPEN_RXPEN;
} else {
obj->serial.periph.uart->CMD = USART_CMD_RXBLOCKEN;
obj->serial.periph.uart->ROUTEPEN = (obj->serial.periph.uart->ROUTEPEN & (~_USART_ROUTEPEN_RXPEN_MASK));
}
#endif
obj->serial.periph.uart->IFC = USART_IFC_TXC;
}
@ -761,28 +782,7 @@ void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_b
LEUART_Init(obj->serial.periph.leuart, &init);
/* Re-enable pins for UART at correct location */
#ifdef _LEUART_ROUTE_LOCATION_SHIFT
obj->serial.periph.leuart->ROUTE = (obj->serial.location << _LEUART_ROUTE_LOCATION_SHIFT);
if(obj->serial.tx_pin != (uint32_t)NC) {
obj->serial.periph.leuart->ROUTE |= LEUART_ROUTE_TXPEN;
}
if(obj->serial.rx_pin != (uint32_t)NC) {
obj->serial.periph.leuart->ROUTE |= LEUART_ROUTE_RXPEN;
}
#else
if(obj->serial.location_tx != NC) {
obj->serial.periph.leuart->ROUTELOC0 = (obj->serial.periph.leuart->ROUTELOC0 & (~_LEUART_ROUTELOC0_TXLOC_MASK)) | (obj->serial.location_tx << _LEUART_ROUTELOC0_TXLOC_SHIFT);
obj->serial.periph.leuart->ROUTEPEN = (obj->serial.periph.leuart->ROUTEPEN & (~_LEUART_ROUTEPEN_TXPEN_MASK)) | LEUART_ROUTEPEN_TXPEN;
} else {
obj->serial.periph.leuart->ROUTEPEN = (obj->serial.periph.leuart->ROUTEPEN & (~_LEUART_ROUTEPEN_TXPEN_MASK));
}
if(obj->serial.location_rx != NC) {
obj->serial.periph.leuart->ROUTELOC0 = (obj->serial.periph.leuart->ROUTELOC0 & (~_LEUART_ROUTELOC0_RXLOC_MASK)) | (obj->serial.location_rx << _LEUART_ROUTELOC0_RXLOC_SHIFT);
obj->serial.periph.leuart->ROUTEPEN = (obj->serial.periph.leuart->ROUTEPEN & (~_LEUART_ROUTEPEN_RXPEN_MASK)) | LEUART_ROUTEPEN_RXPEN;
} else {
obj->serial.periph.leuart->ROUTEPEN = (obj->serial.periph.leuart->ROUTEPEN & (~_LEUART_ROUTEPEN_RXPEN_MASK));
}
#endif
serial_set_route(obj);
/* Re-enable interrupts */
if(was_enabled != 0) {
@ -827,28 +827,7 @@ void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_b
USART_InitAsync(obj->serial.periph.uart, &init);
/* Re-enable pins for UART at correct location */
#ifdef _USART_ROUTE_LOCATION_SHIFT
obj->serial.periph.uart->ROUTE = (obj->serial.location << _USART_ROUTE_LOCATION_SHIFT);
if(obj->serial.tx_pin != (uint32_t)NC) {
obj->serial.periph.uart->ROUTE |= USART_ROUTE_TXPEN;
}
if(obj->serial.rx_pin != (uint32_t)NC) {
obj->serial.periph.uart->ROUTE |= USART_ROUTE_RXPEN;
}
#else
if(obj->serial.location_tx != NC) {
obj->serial.periph.uart->ROUTELOC0 = (obj->serial.periph.uart->ROUTELOC0 & (~_USART_ROUTELOC0_TXLOC_MASK)) | (obj->serial.location_tx << _USART_ROUTELOC0_TXLOC_SHIFT);
obj->serial.periph.uart->ROUTEPEN = (obj->serial.periph.uart->ROUTEPEN & (~_USART_ROUTEPEN_TXPEN_MASK)) | USART_ROUTEPEN_TXPEN;
} else {
obj->serial.periph.uart->ROUTEPEN = (obj->serial.periph.uart->ROUTEPEN & (~_USART_ROUTEPEN_TXPEN_MASK));
}
if(obj->serial.location_rx != NC) {
obj->serial.periph.uart->ROUTELOC0 = (obj->serial.periph.uart->ROUTELOC0 & (~_USART_ROUTELOC0_RXLOC_MASK)) | (obj->serial.location_rx << _USART_ROUTELOC0_RXLOC_SHIFT);
obj->serial.periph.uart->ROUTEPEN = (obj->serial.periph.uart->ROUTEPEN & (~_USART_ROUTEPEN_RXPEN_MASK)) | USART_ROUTEPEN_RXPEN;
} else {
obj->serial.periph.uart->ROUTEPEN = (obj->serial.periph.uart->ROUTEPEN & (~_USART_ROUTEPEN_RXPEN_MASK));
}
#endif
serial_set_route(obj);
/* Re-enable interrupts */
if(was_enabled != 0) {