Diff: targets/hal/TARGET_Freescale/TARGET_KPSDK_MCUS/serial_api.c

Revision:

267:8673334f2cbe

Parent:

266:69e8a32876bd

Child:

268:402bcc0c870b

--- a/targets/hal/TARGET_Freescale/TARGET_KPSDK_MCUS/serial_api.c	Thu Jul 24 12:00:06 2014 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,244 +0,0 @@
-/* mbed Microcontroller Library
- * Copyright (c) 2006-2013 ARM Limited
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#include "serial_api.h"
-
-// math.h required for floating point operations for baud rate calculation
-#include <math.h>
-#include "mbed_assert.h"
-
-#include <string.h>
-
-#include "cmsis.h"
-#include "pinmap.h"
-#include "fsl_uart_hal.h"
-#include "fsl_clock_manager.h"
-#include "fsl_uart_features.h"
-
-/* TODO:
-    putchar/getchar 9 and 10 bits support
-*/
-
-static const PinMap PinMap_UART_TX[] = {
-    {PTB17, UART_0, 3},
-    {PTC17, UART_3, 3},
-    {PTD7 , UART_0, 3},
-    {PTD3 , UART_2, 3},
-    {PTC4 , UART_1, 3},
-    {PTC15, UART_4, 3},
-    {PTB11, UART_3, 3},
-    {PTA14, UART_0, 3},
-    {PTE24, UART_4, 3},
-    {PTE4 , UART_3, 3},
-    {PTE0,  UART_1, 3},
-    {NC  ,  NC    , 0}
-};
-
-static const PinMap PinMap_UART_RX[] = {
-    {PTB16, UART_0, 3},
-    {PTE1 , UART_1, 3},
-    {PTE5 , UART_3, 3},
-    {PTE25, UART_4, 3},
-    {PTA15, UART_0, 3},
-    {PTC16, UART_3, 3},
-    {PTB10, UART_3, 3},
-    {PTC3 , UART_1, 3},
-    {PTC14, UART_4, 3},
-    {PTD2 , UART_2, 3},
-    {PTC6 , UART_0, 3},
-    {NC  ,  NC    , 0}
-};
-
-#define UART_NUM    4
-
-static uint32_t serial_irq_ids[UART_NUM] = {0};
-static uart_irq_handler irq_handler;
-
-int stdio_uart_inited = 0;
-serial_t stdio_uart;
-
-static uint32_t serial_get_clock(uint32_t uart_instance)
-{
-    uint32_t uartSourceClock;
-
-    if ((uart_instance == 0) || (uart_instance == 1)) {
-        clock_manager_get_frequency(kSystemClock, &uartSourceClock);
-    } else {
-        clock_manager_get_frequency(kBusClock, &uartSourceClock);
-    }
-    return uartSourceClock;
-}
-
-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);
-    obj->index = (UARTName)pinmap_merge(uart_tx, uart_rx);
-    MBED_ASSERT((int)obj->index != NC);
-
-    uart_config_t uart_config;
-    uart_config.baudRate = 9600;
-    uart_config.bitCountPerChar = kUart8BitsPerChar;
-    uart_config.parityMode = kUartParityDisabled;
-    uart_config.rxDataInvert = 0;
-    uart_config.stopBitCount = kUartOneStopBit;
-    uart_config.txDataInvert = 0;
-
-    uart_config.uartSourceClockInHz = serial_get_clock(obj->index);
-
-    clock_manager_set_gate(kClockModuleUART, obj->index, true);
-    uart_hal_init(obj->index, &uart_config);
-
-    pinmap_pinout(tx, PinMap_UART_TX);
-    pinmap_pinout(rx, PinMap_UART_RX);
-
-    pin_mode(tx, PullUp);
-    pin_mode(rx, PullUp);
-
-    if (obj->index == STDIO_UART) {
-        stdio_uart_inited = 1;
-        memcpy(&stdio_uart, obj, sizeof(serial_t));
-    }
-}
-
-void serial_free(serial_t *obj) {
-    serial_irq_ids[obj->index] = 0;
-}
-
-void serial_baud(serial_t *obj, int baudrate) {
-    uart_hal_set_baud_rate(obj->index, serial_get_clock(obj->index), (uint32_t)baudrate);
-}
-
-void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits) {
-    uart_hal_configure_bit_count_per_char(obj->index, (uart_bit_count_per_char_t)data_bits);
-    uart_hal_configure_parity_mode(obj->index, (uart_parity_mode_t)parity);
-    uart_hal_configure_stop_bit_count(obj->index, (uart_stop_bit_count_t)stop_bits);
-}
-
-/******************************************************************************
- * INTERRUPTS HANDLING
- ******************************************************************************/
-static inline void uart_irq(uint32_t transmit_empty, uint32_t receive_full, uint32_t index) {
-    if (serial_irq_ids[index] != 0) {
-        if (transmit_empty)
-            irq_handler(serial_irq_ids[index], TxIrq);
-
-    if (receive_full)
-        irq_handler(serial_irq_ids[index], RxIrq);
-    }
-}
-
-void uart0_irq() {
-    uart_irq(uart_hal_is_transmit_data_register_empty(0), uart_hal_is_receive_data_register_full(0), 0);
-    if (uart_hal_is_receive_overrun_detected(0))
-        uart_hal_clear_status_flag(0, kUartReceiveOverrun);
-}
-void uart1_irq() {
-    uart_irq(uart_hal_is_transmit_data_register_empty(1), uart_hal_is_receive_data_register_full(1), 1);
-}
-
-void uart2_irq() {
-    uart_irq(uart_hal_is_transmit_data_register_empty(2), uart_hal_is_receive_data_register_full(2), 2);
-}
-
-void uart3_irq() {
-    uart_irq(uart_hal_is_transmit_data_register_empty(3), uart_hal_is_receive_data_register_full(3), 3);
-}
-
-void uart4_irq() {
-    uart_irq(uart_hal_is_transmit_data_register_empty(4), uart_hal_is_receive_data_register_full(4), 4);
-}
-
-void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id) {
-    irq_handler = handler;
-    serial_irq_ids[obj->index] = id;
-}
-
-void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable) {
-    IRQn_Type irq_n = (IRQn_Type)0;
-    uint32_t vector = 0;
-
-    switch (obj->index) {
-        case 0: irq_n=UART0_RX_TX_IRQn; vector = (uint32_t)&uart0_irq; break;
-        case 1: irq_n=UART1_RX_TX_IRQn; vector = (uint32_t)&uart1_irq; break;
-        case 2: irq_n=UART2_RX_TX_IRQn; vector = (uint32_t)&uart2_irq; break;
-        case 3: irq_n=UART3_RX_TX_IRQn; vector = (uint32_t)&uart3_irq; break;
-        case 4: irq_n=UART4_RX_TX_IRQn; vector = (uint32_t)&uart4_irq; break;
-    }
-
-    if (enable) {
-        switch (irq) {
-            case RxIrq: uart_hal_enable_rx_data_register_full_interrupt(obj->index); break;
-            case TxIrq: uart_hal_enable_tx_data_register_empty_interrupt(obj->index); break;
-        }
-        NVIC_SetVector(irq_n, vector);
-        NVIC_EnableIRQ(irq_n);
-
-    } else { // disable
-        int all_disabled = 0;
-        SerialIrq other_irq = (irq == RxIrq) ? (TxIrq) : (RxIrq);
-        switch (irq) {
-            case RxIrq: uart_hal_disable_rx_data_register_full_interrupt(obj->index); break;
-            case TxIrq: uart_hal_disable_tx_data_register_empty_interrupt(obj->index); break;
-        }
-        switch (other_irq) {
-            case RxIrq: all_disabled = uart_hal_is_receive_data_full_interrupt_enabled(obj->index) == 0; break;
-            case TxIrq: all_disabled = uart_hal_is_tx_data_register_empty_interrupt_enabled(obj->index) == 0; break;
-        }
-        if (all_disabled)
-            NVIC_DisableIRQ(irq_n);
-    }
-}
-
-int serial_getc(serial_t *obj) {
-    while (!serial_readable(obj));
-    uint8_t data;
-    uart_hal_getchar(obj->index, &data);
-
-    return data;
-}
-
-void serial_putc(serial_t *obj, int c) {
-    while (!serial_writable(obj));
-    uart_hal_putchar(obj->index, (uint8_t)c);
-}
-
-int serial_readable(serial_t *obj) {
-    if (uart_hal_is_receive_overrun_detected(obj->index))
-        uart_hal_clear_status_flag(obj->index, kUartReceiveOverrun);
-    return uart_hal_is_receive_data_register_full(obj->index);
-}
-
-int serial_writable(serial_t *obj) {
-    if (uart_hal_is_receive_overrun_detected(obj->index))
-        uart_hal_clear_status_flag(obj->index, kUartReceiveOverrun);
-
-    return uart_hal_is_transmit_data_register_empty(obj->index);
-}
-
-void serial_clear(serial_t *obj) {
-}
-
-void serial_pinout_tx(PinName tx) {
-    pinmap_pinout(tx, PinMap_UART_TX);
-}
-
-void serial_break_set(serial_t *obj) {
-    uart_hal_queue_break_char_to_send(obj->index, true);
-}
-
-void serial_break_clear(serial_t *obj) {
-    uart_hal_queue_break_char_to_send(obj->index, false);
-}
-