mbed-os/targets/TARGET_Realtek/TARGET_AMEBA/TARGET_RTL8195A/serial_api.c

507 lines
15 KiB
C

/* mbed Microcontroller Library
* Copyright (c) 2013-2016 Realtek Semiconductor Corp.
*
* 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 "rtl8195a.h"
#include "objects.h"
#include "serial_api.h"
#ifdef CONFIG_MBED_ENABLED
#include "platform_stdlib.h"
#endif
#if CONFIG_UART_EN
#include "pinmap.h"
#include <string.h>
static const PinMap PinMap_UART_TX[] = {
{PC_3, RTL_PIN_PERI(UART0, 0, S0), RTL_PIN_FUNC(UART0, S0)},
{PE_0, RTL_PIN_PERI(UART0, 0, S1), RTL_PIN_FUNC(UART0, S1)},
{PA_7, RTL_PIN_PERI(UART0, 0, S2), RTL_PIN_FUNC(UART0, S2)},
{PD_3, RTL_PIN_PERI(UART1, 1, S0), RTL_PIN_FUNC(UART1, S0)},
{PE_4, RTL_PIN_PERI(UART1, 1, S1), RTL_PIN_FUNC(UART1, S1)},
{PB_5, RTL_PIN_PERI(UART1, 1, S2), RTL_PIN_FUNC(UART1, S2)},
{PA_4, RTL_PIN_PERI(UART2, 2, S0), RTL_PIN_FUNC(UART2, S0)},
{PC_9, RTL_PIN_PERI(UART2, 2, S1), RTL_PIN_FUNC(UART2, S1)},
{PD_7, RTL_PIN_PERI(UART2, 2, S2), RTL_PIN_FUNC(UART2, S2)},
{PB_0, RTL_PIN_PERI(LOG_UART, 3, S0), RTL_PIN_FUNC(LOG_UART, S0)},
{NC, NC, 0}
};
static const PinMap PinMap_UART_RX[] = {
{PC_0, RTL_PIN_PERI(UART0, 0, S0), RTL_PIN_FUNC(UART0, S0)},
{PE_3, RTL_PIN_PERI(UART0, 0, S1), RTL_PIN_FUNC(UART0, S1)},
{PA_6, RTL_PIN_PERI(UART0, 0, S2), RTL_PIN_FUNC(UART0, S2)},
{PD_0, RTL_PIN_PERI(UART1, 1, S0), RTL_PIN_FUNC(UART1, S0)},
{PE_7, RTL_PIN_PERI(UART1, 1, S1), RTL_PIN_FUNC(UART1, S1)},
{PB_4, RTL_PIN_PERI(UART1, 1, S2), RTL_PIN_FUNC(UART1, S2)},
{PA_0, RTL_PIN_PERI(UART2, 2, S0), RTL_PIN_FUNC(UART2, S0)},
{PC_6, RTL_PIN_PERI(UART2, 2, S1), RTL_PIN_FUNC(UART2, S1)},
{PD_4, RTL_PIN_PERI(UART2, 2, S2), RTL_PIN_FUNC(UART2, S2)},
{PB_1, RTL_PIN_PERI(LOG_UART, 3, S0), RTL_PIN_FUNC(LOG_UART, S0)},
{NC, NC, 0}
};
#define UART_NUM (3)
#define SERIAL_TX_IRQ_EN 0x01
#define SERIAL_RX_IRQ_EN 0x02
#define SERIAL_TX_DMA_EN 0x01
#define SERIAL_RX_DMA_EN 0x02
static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0};
static uart_irq_handler irq_handler[UART_NUM];
static uint32_t serial_irq_en[UART_NUM]={0, 0, 0};
#ifdef CONFIG_GDMA_EN
static uint32_t serial_dma_en[UART_NUM] = {0, 0, 0};
static HAL_GDMA_OP UartGdmaOp;
#endif
#ifdef CONFIG_MBED_ENABLED
#include "log_uart_api.h"
#include "hal_log_uart.h"
int stdio_uart_inited = 0;
serial_t stdio_uart;
log_uart_t stdio_uart_log;
static uint32_t serial_log_irq_ids;
static uart_irq_handler log_irq_handler;
static uint32_t serial_log_irq_en;
#endif
static void SerialTxDoneCallBack(VOID *pAdapter);
static void SerialRxDoneCallBack(VOID *pAdapter);
void serial_init(serial_t *obj, PinName tx, PinName rx)
{
uint32_t uart_tx, uart_rx;
uint32_t uart_sel;
uint8_t uart_idx;
PHAL_RUART_OP pHalRuartOp;
PHAL_RUART_ADAPTER pHalRuartAdapter;
#ifdef CONFIG_GDMA_EN
PUART_DMA_CONFIG pHalRuartDmaCfg;
PHAL_GDMA_OP pHalGdmaOp=&UartGdmaOp;
#endif
// Determine the UART to use (UART0, UART1, or UART3)
uart_tx = pinmap_peripheral(tx, PinMap_UART_TX);
uart_rx = pinmap_peripheral(rx, PinMap_UART_RX);
uart_sel = pinmap_merge(uart_tx, uart_rx);
uart_idx = RTL_GET_PERI_IDX(uart_sel);
if (unlikely(uart_idx == (uint8_t)NC)) {
DBG_UART_ERR("%s: Cannot find matched UART\n", __FUNCTION__);
return;
}
#ifdef CONFIG_MBED_ENABLED
else if (uart_idx == UART_3) {
obj->index = UART_3;
goto init_stdio;
}
#endif
pHalRuartOp = &(obj->hal_uart_op);
pHalRuartAdapter = &(obj->hal_uart_adp);
if ((NULL == pHalRuartOp) || (NULL == pHalRuartAdapter)) {
DBG_UART_ERR("%s: Allocate Adapter Failed\n", __FUNCTION__);
return;
}
HalRuartOpInit((VOID*)pHalRuartOp);
#ifdef CONFIG_GDMA_EN
HalGdmaOpInit((VOID*)pHalGdmaOp);
pHalRuartDmaCfg = &obj->uart_gdma_cfg;
pHalRuartDmaCfg->pHalGdmaOp = pHalGdmaOp;
pHalRuartDmaCfg->pTxHalGdmaAdapter = &obj->uart_gdma_adp_tx;
pHalRuartDmaCfg->pRxHalGdmaAdapter = &obj->uart_gdma_adp_rx;
pHalRuartDmaCfg->pTxDmaBlkList = &obj->gdma_multiblk_list_tx;
pHalRuartDmaCfg->pRxDmaBlkList = &obj->gdma_multiblk_list_rx;
_memset((void*)(pHalRuartDmaCfg->pTxHalGdmaAdapter), 0, sizeof(HAL_GDMA_ADAPTER));
_memset((void*)(pHalRuartDmaCfg->pRxHalGdmaAdapter), 0, sizeof(HAL_GDMA_ADAPTER));
_memset((void*)(pHalRuartDmaCfg->pTxDmaBlkList), 0, sizeof(UART_DMA_MULTIBLK));
_memset((void*)(pHalRuartDmaCfg->pRxDmaBlkList), 0, sizeof(UART_DMA_MULTIBLK));
#endif
pHalRuartOp->HalRuartAdapterLoadDef(pHalRuartAdapter, uart_idx);
pHalRuartAdapter->PinmuxSelect = RTL_GET_PERI_SEL(uart_sel);
pHalRuartAdapter->BaudRate = 9600;
pHalRuartAdapter->IrqHandle.Priority = 6;
if (HalRuartInit(pHalRuartAdapter) != HAL_OK) {
DBG_UART_ERR("serial_init Err!\n");
return;
}
pHalRuartOp->HalRuartRegIrq(pHalRuartAdapter);
pHalRuartOp->HalRuartIntEnable(pHalRuartAdapter);
#ifdef CONFIG_MBED_ENABLED
init_stdio:
// For stdio management
if (uart_idx == STDIO_UART) {
// default setting to 38400
if (stdio_uart_inited) return;
log_uart_init(&stdio_uart_log, 38400, 8, ParityNone, 1);
stdio_uart_inited = 1;
memcpy(&stdio_uart, obj, sizeof(serial_t));
}
#endif
}
void serial_free(serial_t *obj)
{
PHAL_RUART_ADAPTER pHalRuartAdapter;
#ifdef CONFIG_GDMA_EN
u8 uart_idx;
PUART_DMA_CONFIG pHalRuartDmaCfg;
#endif
#ifdef CONFIG_MBED_ENABLED
if (obj->index == UART_3) {
log_uart_free(&stdio_uart_log);
return;
}
#endif
pHalRuartAdapter = &(obj->hal_uart_adp);
HalRuartDeInit(pHalRuartAdapter);
#ifdef CONFIG_GDMA_EN
uart_idx = pHalRuartAdapter->UartIndex;
pHalRuartDmaCfg = &obj->uart_gdma_cfg;
if (serial_dma_en[uart_idx] & SERIAL_RX_DMA_EN) {
HalRuartRxGdmaDeInit(pHalRuartDmaCfg);
serial_dma_en[uart_idx] &= ~SERIAL_RX_DMA_EN;
}
if (serial_dma_en[uart_idx] & SERIAL_TX_DMA_EN) {
HalRuartTxGdmaDeInit(pHalRuartDmaCfg);
serial_dma_en[uart_idx] &= ~SERIAL_TX_DMA_EN;
}
#endif
}
void serial_baud(serial_t *obj, int baudrate)
{
#ifdef CONFIG_MBED_ENABLED
if (obj->index == UART_3) {
return;
}
#endif
PHAL_RUART_ADAPTER pHalRuartAdapter;
pHalRuartAdapter = &(obj->hal_uart_adp);
pHalRuartAdapter->BaudRate = baudrate;
HalRuartSetBaudRate((VOID*)pHalRuartAdapter);
}
void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits)
{
#ifdef CONFIG_MBED_ENABLED
if (obj->index == UART_3) {
log_uart_format(&stdio_uart_log, data_bits, parity, stop_bits);
return;
}
#endif
PHAL_RUART_ADAPTER pHalRuartAdapter;
pHalRuartAdapter = &(obj->hal_uart_adp);
if (data_bits == 8) {
pHalRuartAdapter->WordLen = RUART_WLS_8BITS;
} else {
pHalRuartAdapter->WordLen = RUART_WLS_7BITS;
}
switch (parity) {
case ParityOdd:
case ParityForced0:
pHalRuartAdapter->Parity = RUART_PARITY_ENABLE;
pHalRuartAdapter->ParityType = RUART_ODD_PARITY;
break;
case ParityEven:
case ParityForced1:
pHalRuartAdapter->Parity = RUART_PARITY_ENABLE;
pHalRuartAdapter->ParityType = RUART_EVEN_PARITY;
break;
default: // ParityNone
pHalRuartAdapter->Parity = RUART_PARITY_DISABLE;
break;
}
if (stop_bits == 2) {
pHalRuartAdapter->StopBit = RUART_STOP_BIT_2;
} else {
pHalRuartAdapter->StopBit = RUART_STOP_BIT_1;
}
HalRuartInit(pHalRuartAdapter);
}
/******************************************************************************
* INTERRUPTS HANDLING
******************************************************************************/
static void SerialTxDoneCallBack(VOID *pAdapter)
{
PHAL_RUART_ADAPTER pHalRuartAdapter = pAdapter;
u8 uart_idx = pHalRuartAdapter->UartIndex;
// Mask UART TX FIFO empty
pHalRuartAdapter->Interrupts &= ~RUART_IER_ETBEI;
HalRuartSetIMRRtl8195a (pHalRuartAdapter);
if (irq_handler[uart_idx] != NULL) {
irq_handler[uart_idx](serial_irq_ids[uart_idx], TxIrq);
}
}
static void SerialRxDoneCallBack(VOID *pAdapter)
{
PHAL_RUART_ADAPTER pHalRuartAdapter = pAdapter;
u8 uart_idx = pHalRuartAdapter->UartIndex;
if (irq_handler[uart_idx] != NULL) {
irq_handler[uart_idx](serial_irq_ids[uart_idx], RxIrq);
}
}
#ifdef CONFIG_MBED_ENABLED
static void serial_loguart_irq_handler(uint32_t id, LOG_UART_INT_ID event)
{
if (event == IIR_RX_RDY || event == IIR_CHAR_TIMEOUT)
{
if (log_irq_handler) {
log_irq_handler(serial_log_irq_ids, RxIrq);
}
} else if (event == IIR_THR_EMPTY) {
if (log_irq_handler) {
log_irq_handler(serial_log_irq_ids, TxIrq);
}
}
return;
}
#endif
void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id)
{
#ifdef CONFIG_MBED_ENABLED
if (obj->index == UART_3) {
log_irq_handler = handler;
serial_log_irq_ids = id;
log_uart_irq_handler(&stdio_uart_log, serial_loguart_irq_handler, id);
return;
}
#endif
PHAL_RUART_ADAPTER pHalRuartAdapter;
u8 uart_idx;
pHalRuartAdapter = &(obj->hal_uart_adp);
uart_idx = pHalRuartAdapter->UartIndex;
irq_handler[uart_idx] = handler;
serial_irq_ids[uart_idx] = id;
pHalRuartAdapter->TxTDCallback = SerialTxDoneCallBack;
pHalRuartAdapter->TxTDCbPara = (void*)pHalRuartAdapter;
pHalRuartAdapter->RxDRCallback = SerialRxDoneCallBack;
pHalRuartAdapter->RxDRCbPara = (void*)pHalRuartAdapter;
}
void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
{
#ifdef CONFIG_MBED_ENABLED
if (obj->index == UART_3) {
if (irq == RxIrq) {
log_uart_irq_set(&stdio_uart_log, IIR_RX_RDY, enable);
} else {
log_uart_irq_set(&stdio_uart_log, IIR_THR_EMPTY, enable);
}
return;
}
#endif
PHAL_RUART_ADAPTER pHalRuartAdapter;
PHAL_RUART_OP pHalRuartOp;
u8 uart_idx;
pHalRuartAdapter = &(obj->hal_uart_adp);
pHalRuartOp = &(obj->hal_uart_op);
uart_idx = pHalRuartAdapter->UartIndex;
if (enable) {
if (irq == RxIrq) {
pHalRuartAdapter->Interrupts |= RUART_IER_ERBI | RUART_IER_ELSI;
serial_irq_en[uart_idx] |= SERIAL_RX_IRQ_EN;
HalRuartSetIMRRtl8195a (pHalRuartAdapter);
} else {
serial_irq_en[uart_idx] |= SERIAL_TX_IRQ_EN;
}
pHalRuartOp->HalRuartRegIrq(pHalRuartAdapter);
//log_uart
pHalRuartOp->HalRuartIntEnable(pHalRuartAdapter);
} else { // disable
if (irq == RxIrq) {
pHalRuartAdapter->Interrupts &= ~(RUART_IER_ERBI | RUART_IER_ELSI);
serial_irq_en[uart_idx] &= ~SERIAL_RX_IRQ_EN;
} else {
pHalRuartAdapter->Interrupts &= ~RUART_IER_ETBEI;
serial_irq_en[uart_idx] &= ~SERIAL_TX_IRQ_EN;
}
HalRuartSetIMRRtl8195a (pHalRuartAdapter);
if (pHalRuartAdapter->Interrupts == 0) {
InterruptUnRegister(&pHalRuartAdapter->IrqHandle);
InterruptDis(&pHalRuartAdapter->IrqHandle);
}
}
}
/******************************************************************************
* READ/WRITE
******************************************************************************/
int serial_getc(serial_t *obj)
{
#ifdef CONFIG_MBED_ENABLED
if (obj->index == UART_3) {
return log_uart_getc(&stdio_uart_log);
}
#endif
PHAL_RUART_ADAPTER pHalRuartAdapter=(PHAL_RUART_ADAPTER)&(obj->hal_uart_adp);
u8 uart_idx = pHalRuartAdapter->UartIndex;
while (!serial_readable(obj));
return (int)((HAL_RUART_READ32(uart_idx, RUART_REV_BUF_REG_OFF)) & 0xFF);
}
void serial_putc(serial_t *obj, int c)
{
#ifdef CONFIG_MBED_ENABLED
if (obj->index == UART_3) {
log_uart_putc(&stdio_uart_log, (char)c);
return;
}
#endif
PHAL_RUART_ADAPTER pHalRuartAdapter=(PHAL_RUART_ADAPTER)&(obj->hal_uart_adp);
u8 uart_idx = pHalRuartAdapter->UartIndex;
while (!serial_writable(obj));
HAL_RUART_WRITE32(uart_idx, RUART_TRAN_HOLD_REG_OFF, (c & 0xFF));
if (serial_irq_en[uart_idx] & SERIAL_TX_IRQ_EN) {
// UnMask TX FIFO empty IRQ
pHalRuartAdapter->Interrupts |= RUART_IER_ETBEI;
HalRuartSetIMRRtl8195a (pHalRuartAdapter);
}
}
int serial_readable(serial_t *obj)
{
#ifdef CONFIG_MBED_ENABLED
if (obj->index == UART_3) {
return log_uart_readable(&stdio_uart_log);
}
#endif
PHAL_RUART_ADAPTER pHalRuartAdapter=(PHAL_RUART_ADAPTER)&(obj->hal_uart_adp);
u8 uart_idx = pHalRuartAdapter->UartIndex;
if ((HAL_RUART_READ32(uart_idx, RUART_LINE_STATUS_REG_OFF)) & RUART_LINE_STATUS_REG_DR) {
return 1;
} else {
return 0;
}
}
int serial_writable(serial_t *obj)
{
#ifdef CONFIG_MBED_ENABLED
if (obj->index == UART_3) {
return log_uart_writable(&stdio_uart_log);
}
#endif
PHAL_RUART_ADAPTER pHalRuartAdapter=(PHAL_RUART_ADAPTER)&(obj->hal_uart_adp);
u8 uart_idx = pHalRuartAdapter->UartIndex;
if (HAL_RUART_READ32(uart_idx, RUART_LINE_STATUS_REG_OFF) & (RUART_LINE_STATUS_REG_THRE)) {
return 1;
} else {
return 0;
}
}
void serial_clear(serial_t *obj)
{
#ifdef CONFIG_MBED_ENABLED
if (obj->index == UART_3) {
log_uart_clear(&stdio_uart_log);
return;
}
#endif
PHAL_RUART_ADAPTER pHalRuartAdapter;
pHalRuartAdapter = &(obj->hal_uart_adp);
HalRuartResetTRxFifo((VOID *)pHalRuartAdapter);
}
void serial_break_set(serial_t *obj)
{
#ifdef CONFIG_MBED_ENABLED
if (obj->index == UART_3) {
log_uart_break_set(&stdio_uart_log);
return;
}
#endif
PHAL_RUART_ADAPTER pHalRuartAdapter=(PHAL_RUART_ADAPTER)&(obj->hal_uart_adp);
u8 uart_idx = pHalRuartAdapter->UartIndex;
u32 RegValue;
RegValue = HAL_RUART_READ32(uart_idx, RUART_LINE_CTL_REG_OFF);
RegValue |= BIT_UART_LCR_BREAK_CTRL;
HAL_RUART_WRITE32(uart_idx, RUART_LINE_CTL_REG_OFF, RegValue);
}
void serial_break_clear(serial_t *obj)
{
#ifdef CONFIG_MBED_ENABLED
if (obj->index == UART_3) {
log_uart_break_clear(&stdio_uart_log);
return;
}
#endif
PHAL_RUART_ADAPTER pHalRuartAdapter=(PHAL_RUART_ADAPTER)&(obj->hal_uart_adp);
u8 uart_idx = pHalRuartAdapter->UartIndex;
u32 RegValue;
RegValue = HAL_RUART_READ32(uart_idx, RUART_LINE_CTL_REG_OFF);
RegValue &= ~(BIT_UART_LCR_BREAK_CTRL);
HAL_RUART_WRITE32(uart_idx, RUART_LINE_CTL_REG_OFF, RegValue);
}
void serial_pinout_tx(PinName tx)
{
pinmap_pinout(tx, PinMap_UART_TX);
}
#if DEVICE_SERIAL_ASYNCH
#endif
#endif //#if CONFIG_UART_EN