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K64F serial driver: Add explicit pinmap support

pull/11892/head
Przemyslaw Stekiel 2019-08-29 11:01:40 +02:00
parent f1367c057c
commit e82e190a66
1 changed files with 42 additions and 15 deletions
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57
targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_MCU_K64F/serial_api.c
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@ -48,11 +48,9 @@ static clock_name_t const uart_clocks[] = UART_CLOCK_FREQS;
int stdio_uart_inited = 0;
serial_t stdio_uart;
void serial_init(serial_t *obj, PinName tx, PinName rx)
void serial_init_direct(serial_t *obj, const serial_pinmap_t *pinmap)
{
uint32_t uart_tx = pinmap_peripheral(tx, PinMap_UART_TX);
uint32_t uart_rx = pinmap_peripheral(rx, PinMap_UART_RX);
obj->serial.index = pinmap_merge(uart_tx, uart_rx);
obj->serial.index = (uint32_t)pinmap->peripheral;
MBED_ASSERT((int)obj->serial.index != NC);
uart_config_t config;
@ -64,16 +62,16 @@ void serial_init(serial_t *obj, PinName tx, PinName rx)
UART_Init(uart_addrs[obj->serial.index], &config, CLOCK_GetFreq(uart_clocks[obj->serial.index]));
pinmap_pinout(tx, PinMap_UART_TX);
pinmap_pinout(rx, PinMap_UART_RX);
pin_function(pinmap->tx_pin, pinmap->tx_function);
pin_function(pinmap->rx_pin, pinmap->rx_function);
if (tx != NC) {
if (pinmap->tx_pin != NC) {
UART_EnableTx(uart_addrs[obj->serial.index], true);
pin_mode(tx, PullUp);
pin_mode(pinmap->tx_pin, PullUp);
}
if (rx != NC) {
if (pinmap->rx_pin != NC) {
UART_EnableRx(uart_addrs[obj->serial.index], true);
pin_mode(rx, PullUp);
pin_mode(pinmap->rx_pin, PullUp);
}
if (obj->serial.index == STDIO_UART) {
@ -89,6 +87,21 @@ void serial_init(serial_t *obj, PinName tx, PinName rx)
memset(&(obj->serial.uart_transfer_handle), 0, sizeof(obj->serial.uart_transfer_handle));
}
void serial_init(serial_t *obj, PinName tx, PinName rx)
{
uint32_t uart_tx = pinmap_peripheral(tx, PinMap_UART_TX);
uint32_t uart_rx = pinmap_peripheral(rx, PinMap_UART_RX);
int peripheral = (int)pinmap_merge(uart_tx, uart_rx);
int tx_function = (int)pinmap_find_function(tx, PinMap_UART_TX);
int rx_function = (int)pinmap_find_function(rx, PinMap_UART_RX);
const serial_pinmap_t explicit_uart_pinmap = {peripheral, tx, tx_function, rx, rx_function, 0};
serial_init_direct(obj, &explicit_uart_pinmap);
}
void serial_free(serial_t *obj)
{
UART_Deinit(uart_addrs[obj->serial.index]);
@ -336,24 +349,28 @@ const PinMap *serial_rts_pinmap()
/*
* Only hardware flow control is implemented in this API.
*/
void serial_set_flow_control(serial_t *obj, FlowControl type, PinName rxflow, PinName txflow)
void serial_set_flow_control_direct(serial_t *obj, FlowControl type, const serial_fc_pinmap_t *pinmap)
{
switch(type) {
case FlowControlRTS:
pinmap_pinout(rxflow, PinMap_UART_RTS);
pin_function(pinmap->rx_flow_pin, pinmap->rx_flow_function);
pin_mode(pinmap->rx_flow_pin, PullNone);
uart_addrs[obj->serial.index]->MODEM &= ~UART_MODEM_TXCTSE_MASK;
uart_addrs[obj->serial.index]->MODEM |= UART_MODEM_RXRTSE_MASK;
break;
case FlowControlCTS:
pinmap_pinout(txflow, PinMap_UART_CTS);
pin_function(pinmap->tx_flow_pin, pinmap->tx_flow_function);
pin_mode(pinmap->tx_flow_pin, PullNone);
uart_addrs[obj->serial.index]->MODEM &= ~UART_MODEM_RXRTSE_MASK;
uart_addrs[obj->serial.index]->MODEM |= UART_MODEM_TXCTSE_MASK;
break;
case FlowControlRTSCTS:
pinmap_pinout(rxflow, PinMap_UART_RTS);
pinmap_pinout(txflow, PinMap_UART_CTS);
pin_function(pinmap->rx_flow_pin, pinmap->rx_flow_function);
pin_mode(pinmap->rx_flow_pin, PullNone);
pin_function(pinmap->tx_flow_pin, pinmap->tx_flow_function);
pin_mode(pinmap->tx_flow_pin, PullNone);
uart_addrs[obj->serial.index]->MODEM |= UART_MODEM_TXCTSE_MASK | UART_MODEM_RXRTSE_MASK;
break;
@ -366,6 +383,16 @@ void serial_set_flow_control(serial_t *obj, FlowControl type, PinName rxflow, Pi
}
}
void serial_set_flow_control(serial_t *obj, FlowControl type, PinName rxflow, PinName txflow)
{
int tx_flow_function = (int)pinmap_find_function(txflow, PinMap_UART_CTS);
int rx_flow_function = (int)pinmap_find_function(rxflow, PinMap_UART_RTS);
const serial_fc_pinmap_t explicit_uart_fc_pinmap = {0, txflow, tx_flow_function, rxflow, rx_flow_function};
serial_set_flow_control_direct(obj, type, &explicit_uart_fc_pinmap);
}
#endif
static void serial_send_asynch(serial_t *obj)