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- /*
- * ESPRSSIF MIT License
- *
- * Copyright (c) 2016 <ESPRESSIF SYSTEMS (SHANGHAI) PTE LTD>
- *
- * Permission is hereby granted for use on ESPRESSIF SYSTEMS ESP8266 only, in which case,
- * it is free of charge, to any person obtaining a copy of this software and associated
- * documentation files (the "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the Software is furnished
- * to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all copies or
- * substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
- * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
- * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- */
- #include "ets_sys.h"
- #include "osapi.h"
- #include "driver/uart.h"
- #include "osapi.h"
- #include "driver/uart_register.h"
- #include "mem.h"
- #include "os_type.h"
- // UartDev is defined and initialized in rom code.
- extern UartDevice UartDev;
- LOCAL struct UartBuffer* pTxBuffer = NULL;
- LOCAL struct UartBuffer* pRxBuffer = NULL;
- /*uart demo with a system task, to output what uart receives*/
- /*this is a example to process uart data from task,please change the priority to fit your application task if exists*/
- /*it might conflict with your task, if so,please arrange the priority of different task, or combine it to a different event in the same task. */
- #define uart_recvTaskPrio 0
- #define uart_recvTaskQueueLen 10
- os_event_t uart_recvTaskQueue[uart_recvTaskQueueLen];
- #define DBG
- #define DBG1 uart1_sendStr_no_wait
- #define DBG2 os_printf
- LOCAL void uart0_rx_intr_handler(void *para);
- /******************************************************************************
- * FunctionName : uart_config
- * Description : Internal used function
- * UART0 used for data TX/RX, RX buffer size is 0x100, interrupt enabled
- * UART1 just used for debug output
- * Parameters : uart_no, use UART0 or UART1 defined ahead
- * Returns : NONE
- *******************************************************************************/
- LOCAL void ICACHE_FLASH_ATTR
- uart_config(uint8 uart_no)
- {
- if (uart_no == UART1){
- PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO2_U, FUNC_U1TXD_BK);
- }else{
- /* rcv_buff size if 0x100 */
- ETS_UART_INTR_ATTACH(uart0_rx_intr_handler, &(UartDev.rcv_buff));
- PIN_PULLUP_DIS(PERIPHS_IO_MUX_U0TXD_U);
- PIN_FUNC_SELECT(PERIPHS_IO_MUX_U0TXD_U, FUNC_U0TXD);
- #if UART_HW_RTS
- PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDO_U, FUNC_U0RTS); //HW FLOW CONTROL RTS PIN
- #endif
- #if UART_HW_CTS
- PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTCK_U, FUNC_U0CTS); //HW FLOW CONTROL CTS PIN
- #endif
- }
- uart_div_modify(uart_no, UART_CLK_FREQ / (UartDev.baut_rate));//SET BAUDRATE
-
- WRITE_PERI_REG(UART_CONF0(uart_no), ((UartDev.exist_parity & UART_PARITY_EN_M) << UART_PARITY_EN_S) //SET BIT AND PARITY MODE
- | ((UartDev.parity & UART_PARITY_M) <<UART_PARITY_S )
- | ((UartDev.stop_bits & UART_STOP_BIT_NUM) << UART_STOP_BIT_NUM_S)
- | ((UartDev.data_bits & UART_BIT_NUM) << UART_BIT_NUM_S));
-
- //clear rx and tx fifo,not ready
- SET_PERI_REG_MASK(UART_CONF0(uart_no), UART_RXFIFO_RST | UART_TXFIFO_RST); //RESET FIFO
- CLEAR_PERI_REG_MASK(UART_CONF0(uart_no), UART_RXFIFO_RST | UART_TXFIFO_RST);
-
- if (uart_no == UART0){
- //set rx fifo trigger
- WRITE_PERI_REG(UART_CONF1(uart_no),
- ((100 & UART_RXFIFO_FULL_THRHD) << UART_RXFIFO_FULL_THRHD_S) |
- #if UART_HW_RTS
- ((110 & UART_RX_FLOW_THRHD) << UART_RX_FLOW_THRHD_S) |
- UART_RX_FLOW_EN | //enbale rx flow control
- #endif
- (0x02 & UART_RX_TOUT_THRHD) << UART_RX_TOUT_THRHD_S |
- UART_RX_TOUT_EN|
- ((0x10 & UART_TXFIFO_EMPTY_THRHD)<<UART_TXFIFO_EMPTY_THRHD_S));//wjl
- #if UART_HW_CTS
- SET_PERI_REG_MASK( UART_CONF0(uart_no),UART_TX_FLOW_EN); //add this sentense to add a tx flow control via MTCK( CTS )
- #endif
- SET_PERI_REG_MASK(UART_INT_ENA(uart_no), UART_RXFIFO_TOUT_INT_ENA |UART_FRM_ERR_INT_ENA);
- }else{
- WRITE_PERI_REG(UART_CONF1(uart_no),((UartDev.rcv_buff.TrigLvl & UART_RXFIFO_FULL_THRHD) << UART_RXFIFO_FULL_THRHD_S));//TrigLvl default val == 1
- }
- //clear all interrupt
- WRITE_PERI_REG(UART_INT_CLR(uart_no), 0xffff);
- //enable rx_interrupt
- SET_PERI_REG_MASK(UART_INT_ENA(uart_no), UART_RXFIFO_FULL_INT_ENA|UART_RXFIFO_OVF_INT_ENA);
- }
- /******************************************************************************
- * FunctionName : uart1_tx_one_char
- * Description : Internal used function
- * Use uart1 interface to transfer one char
- * Parameters : uint8 TxChar - character to tx
- * Returns : OK
- *******************************************************************************/
- STATUS uart_tx_one_char(uint8 uart, uint8 TxChar)
- {
- while (true){
- uint32 fifo_cnt = READ_PERI_REG(UART_STATUS(uart)) & (UART_TXFIFO_CNT<<UART_TXFIFO_CNT_S);
- if ((fifo_cnt >> UART_TXFIFO_CNT_S & UART_TXFIFO_CNT) < 126) {
- break;
- }
- }
- WRITE_PERI_REG(UART_FIFO(uart) , TxChar);
- return OK;
- }
- /******************************************************************************
- * FunctionName : uart1_write_char
- * Description : Internal used function
- * Do some special deal while tx char is '\r' or '\n'
- * Parameters : char c - character to tx
- * Returns : NONE
- *******************************************************************************/
- LOCAL void ICACHE_FLASH_ATTR
- uart1_write_char(char c)
- {
- if (c == '\n'){
- uart_tx_one_char(UART1, '\r');
- uart_tx_one_char(UART1, '\n');
- }else if (c == '\r'){
-
- }else{
- uart_tx_one_char(UART1, c);
- }
- }
- //os_printf output to fifo or to the tx buffer
- LOCAL void ICACHE_FLASH_ATTR
- uart0_write_char_no_wait(char c)
- {
- #if UART_BUFF_EN //send to uart0 fifo but do not wait
- uint8 chr;
- if (c == '\n'){
- chr = '\r';
- tx_buff_enq(&chr, 1);
- chr = '\n';
- tx_buff_enq(&chr, 1);
- }else if (c == '\r'){
-
- }else{
- tx_buff_enq(&c,1);
- }
- #else //send to uart tx buffer
- if (c == '\n'){
- uart_tx_one_char_no_wait(UART0, '\r');
- uart_tx_one_char_no_wait(UART0, '\n');
- }else if (c == '\r'){
-
- }
- else{
- uart_tx_one_char_no_wait(UART0, c);
- }
- #endif
- }
- /******************************************************************************
- * FunctionName : uart0_tx_buffer
- * Description : use uart0 to transfer buffer
- * Parameters : uint8 *buf - point to send buffer
- * uint16 len - buffer len
- * Returns :
- *******************************************************************************/
- void ICACHE_FLASH_ATTR
- uart0_tx_buffer(uint8 *buf, uint16 len)
- {
- uint16 i;
- for (i = 0; i < len; i++)
- {
- uart_tx_one_char(UART0, buf[i]);
- }
- }
- /******************************************************************************
- * FunctionName : uart0_sendStr
- * Description : use uart0 to transfer buffer
- * Parameters : uint8 *buf - point to send buffer
- * uint16 len - buffer len
- * Returns :
- *******************************************************************************/
- void ICACHE_FLASH_ATTR
- uart0_sendStr(const char *str)
- {
- while(*str){
- uart_tx_one_char(UART0, *str++);
- }
- }
- void at_port_print(const char *str) __attribute__((alias("uart0_sendStr")));
- /******************************************************************************
- * FunctionName : uart0_rx_intr_handler
- * Description : Internal used function
- * UART0 interrupt handler, add self handle code inside
- * Parameters : void *para - point to ETS_UART_INTR_ATTACH's arg
- * Returns : NONE
- *******************************************************************************/
- LOCAL void
- uart0_rx_intr_handler(void *para)
- {
- /* uart0 and uart1 intr combine togther, when interrupt occur, see reg 0x3ff20020, bit2, bit0 represents
- * uart1 and uart0 respectively
- */
- uint8 RcvChar;
- uint8 uart_no = UART0;//UartDev.buff_uart_no;
- uint8 fifo_len = 0;
- uint8 buf_idx = 0;
- uint8 temp,cnt;
- //RcvMsgBuff *pRxBuff = (RcvMsgBuff *)para;
-
- /*ATTENTION:*/
- /*IN NON-OS VERSION SDK, DO NOT USE "ICACHE_FLASH_ATTR" FUNCTIONS IN THE WHOLE HANDLER PROCESS*/
- /*ALL THE FUNCTIONS CALLED IN INTERRUPT HANDLER MUST BE DECLARED IN RAM */
- /*IF NOT , POST AN EVENT AND PROCESS IN SYSTEM TASK */
- if(UART_FRM_ERR_INT_ST == (READ_PERI_REG(UART_INT_ST(uart_no)) & UART_FRM_ERR_INT_ST)){
- DBG1("FRM_ERR\r\n");
- WRITE_PERI_REG(UART_INT_CLR(uart_no), UART_FRM_ERR_INT_CLR);
- }else if(UART_RXFIFO_FULL_INT_ST == (READ_PERI_REG(UART_INT_ST(uart_no)) & UART_RXFIFO_FULL_INT_ST)){
- DBG("f");
- uart_rx_intr_disable(UART0);
- WRITE_PERI_REG(UART_INT_CLR(UART0), UART_RXFIFO_FULL_INT_CLR);
- system_os_post(uart_recvTaskPrio, 0, 0);
- }else if(UART_RXFIFO_TOUT_INT_ST == (READ_PERI_REG(UART_INT_ST(uart_no)) & UART_RXFIFO_TOUT_INT_ST)){
- DBG("t");
- uart_rx_intr_disable(UART0);
- WRITE_PERI_REG(UART_INT_CLR(UART0), UART_RXFIFO_TOUT_INT_CLR);
- system_os_post(uart_recvTaskPrio, 0, 0);
- }else if(UART_TXFIFO_EMPTY_INT_ST == (READ_PERI_REG(UART_INT_ST(uart_no)) & UART_TXFIFO_EMPTY_INT_ST)){
- DBG("e");
- /* to output uart data from uart buffer directly in empty interrupt handler*/
- /*instead of processing in system event, in order not to wait for current task/function to quit */
- /*ATTENTION:*/
- /*IN NON-OS VERSION SDK, DO NOT USE "ICACHE_FLASH_ATTR" FUNCTIONS IN THE WHOLE HANDLER PROCESS*/
- /*ALL THE FUNCTIONS CALLED IN INTERRUPT HANDLER MUST BE DECLARED IN RAM */
- CLEAR_PERI_REG_MASK(UART_INT_ENA(UART0), UART_TXFIFO_EMPTY_INT_ENA);
- #if UART_BUFF_EN
- tx_start_uart_buffer(UART0);
- #endif
- //system_os_post(uart_recvTaskPrio, 1, 0);
- WRITE_PERI_REG(UART_INT_CLR(uart_no), UART_TXFIFO_EMPTY_INT_CLR);
-
- }else if(UART_RXFIFO_OVF_INT_ST == (READ_PERI_REG(UART_INT_ST(uart_no)) & UART_RXFIFO_OVF_INT_ST)){
- WRITE_PERI_REG(UART_INT_CLR(uart_no), UART_RXFIFO_OVF_INT_CLR);
- DBG1("RX OVF!!\r\n");
- }
- }
- /******************************************************************************
- * FunctionName : uart_init
- * Description : user interface for init uart
- * Parameters : UartBautRate uart0_br - uart0 bautrate
- * UartBautRate uart1_br - uart1 bautrate
- * Returns : NONE
- *******************************************************************************/
- #if UART_SELFTEST&UART_BUFF_EN
- os_timer_t buff_timer_t;
- void ICACHE_FLASH_ATTR
- uart_test_rx()
- {
- uint8 uart_buf[128]={0};
- uint16 len = 0;
- len = rx_buff_deq(uart_buf, 128 );
- tx_buff_enq(uart_buf,len);
- }
- #endif
- LOCAL void ICACHE_FLASH_ATTR ///////
- uart_recvTask(os_event_t *events)
- {
- if(events->sig == 0){
- #if UART_BUFF_EN
- Uart_rx_buff_enq();
- #else
- uint8 fifo_len = (READ_PERI_REG(UART_STATUS(UART0))>>UART_RXFIFO_CNT_S)&UART_RXFIFO_CNT;
- uint8 d_tmp = 0;
- uint8 idx=0;
- for(idx=0;idx<fifo_len;idx++) {
- d_tmp = READ_PERI_REG(UART_FIFO(UART0)) & 0xFF;
- uart_tx_one_char(UART0, d_tmp);
- }
- WRITE_PERI_REG(UART_INT_CLR(UART0), UART_RXFIFO_FULL_INT_CLR|UART_RXFIFO_TOUT_INT_CLR);
- uart_rx_intr_enable(UART0);
- #endif
- }else if(events->sig == 1){
- #if UART_BUFF_EN
- //already move uart buffer output to uart empty interrupt
- //tx_start_uart_buffer(UART0);
- #else
-
- #endif
- }
- }
- void ICACHE_FLASH_ATTR
- uart_init(UartBautRate uart0_br, UartBautRate uart1_br)
- {
- /*this is a example to process uart data from task,please change the priority to fit your application task if exists*/
- system_os_task(uart_recvTask, uart_recvTaskPrio, uart_recvTaskQueue, uart_recvTaskQueueLen); //demo with a task to process the uart data
-
- UartDev.baut_rate = uart0_br;
- uart_config(UART0);
- UartDev.baut_rate = uart1_br;
- uart_config(UART1);
- ETS_UART_INTR_ENABLE();
-
- #if UART_BUFF_EN
- pTxBuffer = Uart_Buf_Init(UART_TX_BUFFER_SIZE);
- pRxBuffer = Uart_Buf_Init(UART_RX_BUFFER_SIZE);
- #endif
- /*option 1: use default print, output from uart0 , will wait some time if fifo is full */
- //do nothing...
- /*option 2: output from uart1,uart1 output will not wait , just for output debug info */
- /*os_printf output uart data via uart1(GPIO2)*/
- //os_install_putc1((void *)uart1_write_char); //use this one to output debug information via uart1 //
- /*option 3: output from uart0 will skip current byte if fifo is full now... */
- /*see uart0_write_char_no_wait:you can output via a buffer or output directly */
- /*os_printf output uart data via uart0 or uart buffer*/
- //os_install_putc1((void *)uart0_write_char_no_wait); //use this to print via uart0
-
- #if UART_SELFTEST&UART_BUFF_EN
- os_timer_disarm(&buff_timer_t);
- os_timer_setfn(&buff_timer_t, uart_test_rx , NULL); //a demo to process the data in uart rx buffer
- os_timer_arm(&buff_timer_t,10,1);
- #endif
- }
- void ICACHE_FLASH_ATTR
- uart_reattach()
- {
- uart_init(BIT_RATE_115200, BIT_RATE_115200);
- }
- /******************************************************************************
- * FunctionName : uart_tx_one_char_no_wait
- * Description : uart tx a single char without waiting for fifo
- * Parameters : uint8 uart - uart port
- * uint8 TxChar - char to tx
- * Returns : STATUS
- *******************************************************************************/
- STATUS uart_tx_one_char_no_wait(uint8 uart, uint8 TxChar)
- {
- uint8 fifo_cnt = (( READ_PERI_REG(UART_STATUS(uart))>>UART_TXFIFO_CNT_S)& UART_TXFIFO_CNT);
- if (fifo_cnt < 126) {
- WRITE_PERI_REG(UART_FIFO(uart) , TxChar);
- }
- return OK;
- }
- STATUS uart0_tx_one_char_no_wait(uint8 TxChar)
- {
- uint8 fifo_cnt = (( READ_PERI_REG(UART_STATUS(UART0))>>UART_TXFIFO_CNT_S)& UART_TXFIFO_CNT);
- if (fifo_cnt < 126) {
- WRITE_PERI_REG(UART_FIFO(UART0) , TxChar);
- }
- return OK;
- }
- /******************************************************************************
- * FunctionName : uart1_sendStr_no_wait
- * Description : uart tx a string without waiting for every char, used for print debug info which can be lost
- * Parameters : const char *str - string to be sent
- * Returns : NONE
- *******************************************************************************/
- void uart1_sendStr_no_wait(const char *str)
- {
- while(*str){
- uart_tx_one_char_no_wait(UART1, *str++);
- }
- }
- #if UART_BUFF_EN
- /******************************************************************************
- * FunctionName : Uart_Buf_Init
- * Description : tx buffer enqueue: fill a first linked buffer
- * Parameters : char *pdata - data point to be enqueue
- * Returns : NONE
- *******************************************************************************/
- struct UartBuffer* ICACHE_FLASH_ATTR
- Uart_Buf_Init(uint32 buf_size)
- {
- uint32 heap_size = system_get_free_heap_size();
- if(heap_size <=buf_size){
- DBG1("no buf for uart\n\r");
- return NULL;
- }else{
- DBG("test heap size: %d\n\r",heap_size);
- struct UartBuffer* pBuff = (struct UartBuffer* )os_malloc(sizeof(struct UartBuffer));
- pBuff->UartBuffSize = buf_size;
- pBuff->pUartBuff = (uint8*)os_malloc(pBuff->UartBuffSize);
- pBuff->pInPos = pBuff->pUartBuff;
- pBuff->pOutPos = pBuff->pUartBuff;
- pBuff->Space = pBuff->UartBuffSize;
- pBuff->BuffState = OK;
- pBuff->nextBuff = NULL;
- pBuff->TcpControl = RUN;
- return pBuff;
- }
- }
- //copy uart buffer
- LOCAL void Uart_Buf_Cpy(struct UartBuffer* pCur, char* pdata , uint16 data_len)
- {
- if(data_len == 0) return ;
-
- uint16 tail_len = pCur->pUartBuff + pCur->UartBuffSize - pCur->pInPos ;
- if(tail_len >= data_len){ //do not need to loop back the queue
- os_memcpy(pCur->pInPos , pdata , data_len );
- pCur->pInPos += ( data_len );
- pCur->pInPos = (pCur->pUartBuff + (pCur->pInPos - pCur->pUartBuff) % pCur->UartBuffSize );
- pCur->Space -=data_len;
- }else{
- os_memcpy(pCur->pInPos, pdata, tail_len);
- pCur->pInPos += ( tail_len );
- pCur->pInPos = (pCur->pUartBuff + (pCur->pInPos - pCur->pUartBuff) % pCur->UartBuffSize );
- pCur->Space -=tail_len;
- os_memcpy(pCur->pInPos, pdata+tail_len , data_len-tail_len);
- pCur->pInPos += ( data_len-tail_len );
- pCur->pInPos = (pCur->pUartBuff + (pCur->pInPos - pCur->pUartBuff) % pCur->UartBuffSize );
- pCur->Space -=( data_len-tail_len);
- }
-
- }
- /******************************************************************************
- * FunctionName : uart_buf_free
- * Description : deinit of the tx buffer
- * Parameters : struct UartBuffer* pTxBuff - tx buffer struct pointer
- * Returns : NONE
- *******************************************************************************/
- void ICACHE_FLASH_ATTR
- uart_buf_free(struct UartBuffer* pBuff)
- {
- os_free(pBuff->pUartBuff);
- os_free(pBuff);
- }
- //rx buffer dequeue
- uint16 ICACHE_FLASH_ATTR
- rx_buff_deq(char* pdata, uint16 data_len )
- {
- uint16 buf_len = (pRxBuffer->UartBuffSize- pRxBuffer->Space);
- uint16 tail_len = pRxBuffer->pUartBuff + pRxBuffer->UartBuffSize - pRxBuffer->pOutPos ;
- uint16 len_tmp = 0;
- len_tmp = ((data_len > buf_len)?buf_len:data_len);
- if(pRxBuffer->pOutPos <= pRxBuffer->pInPos){
- os_memcpy(pdata, pRxBuffer->pOutPos,len_tmp);
- pRxBuffer->pOutPos+= len_tmp;
- pRxBuffer->Space += len_tmp;
- }else{
- if(len_tmp>tail_len){
- os_memcpy(pdata, pRxBuffer->pOutPos, tail_len);
- pRxBuffer->pOutPos += tail_len;
- pRxBuffer->pOutPos = (pRxBuffer->pUartBuff + (pRxBuffer->pOutPos- pRxBuffer->pUartBuff) % pRxBuffer->UartBuffSize );
- pRxBuffer->Space += tail_len;
-
- os_memcpy(pdata+tail_len , pRxBuffer->pOutPos, len_tmp-tail_len);
- pRxBuffer->pOutPos+= ( len_tmp-tail_len );
- pRxBuffer->pOutPos= (pRxBuffer->pUartBuff + (pRxBuffer->pOutPos- pRxBuffer->pUartBuff) % pRxBuffer->UartBuffSize );
- pRxBuffer->Space +=( len_tmp-tail_len);
- }else{
- //os_printf("case 3 in rx deq\n\r");
- os_memcpy(pdata, pRxBuffer->pOutPos, len_tmp);
- pRxBuffer->pOutPos += len_tmp;
- pRxBuffer->pOutPos = (pRxBuffer->pUartBuff + (pRxBuffer->pOutPos- pRxBuffer->pUartBuff) % pRxBuffer->UartBuffSize );
- pRxBuffer->Space += len_tmp;
- }
- }
- if(pRxBuffer->Space >= UART_FIFO_LEN){
- uart_rx_intr_enable(UART0);
- }
- return len_tmp;
- }
- //move data from uart fifo to rx buffer
- void Uart_rx_buff_enq()
- {
- uint8 fifo_len,buf_idx;
- uint8 fifo_data;
- #if 1
- fifo_len = (READ_PERI_REG(UART_STATUS(UART0))>>UART_RXFIFO_CNT_S)&UART_RXFIFO_CNT;
- if(fifo_len >= pRxBuffer->Space){
- os_printf("buf full!!!\n\r");
- }else{
- buf_idx=0;
- while(buf_idx < fifo_len){
- buf_idx++;
- fifo_data = READ_PERI_REG(UART_FIFO(UART0)) & 0xFF;
- *(pRxBuffer->pInPos++) = fifo_data;
- if(pRxBuffer->pInPos == (pRxBuffer->pUartBuff + pRxBuffer->UartBuffSize)){
- pRxBuffer->pInPos = pRxBuffer->pUartBuff;
- }
- }
- pRxBuffer->Space -= fifo_len ;
- if(pRxBuffer->Space >= UART_FIFO_LEN){
- //os_printf("after rx enq buf enough\n\r");
- uart_rx_intr_enable(UART0);
- }
- }
- #endif
- }
- //fill the uart tx buffer
- void ICACHE_FLASH_ATTR
- tx_buff_enq(char* pdata, uint16 data_len )
- {
- CLEAR_PERI_REG_MASK(UART_INT_ENA(UART0), UART_TXFIFO_EMPTY_INT_ENA);
- if(pTxBuffer == NULL){
- DBG1("\n\rnull, create buffer struct\n\r");
- pTxBuffer = Uart_Buf_Init(UART_TX_BUFFER_SIZE);
- if(pTxBuffer!= NULL){
- Uart_Buf_Cpy(pTxBuffer , pdata, data_len );
- }else{
- DBG1("uart tx MALLOC no buf \n\r");
- }
- }else{
- if(data_len <= pTxBuffer->Space){
- Uart_Buf_Cpy(pTxBuffer , pdata, data_len);
- }else{
- DBG1("UART TX BUF FULL!!!!\n\r");
- }
- }
- #if 0
- if(pTxBuffer->Space <= URAT_TX_LOWER_SIZE){
- set_tcp_block();
- }
- #endif
- SET_PERI_REG_MASK(UART_CONF1(UART0), (UART_TX_EMPTY_THRESH_VAL & UART_TXFIFO_EMPTY_THRHD)<<UART_TXFIFO_EMPTY_THRHD_S);
- SET_PERI_REG_MASK(UART_INT_ENA(UART0), UART_TXFIFO_EMPTY_INT_ENA);
- }
- //--------------------------------
- LOCAL void tx_fifo_insert(struct UartBuffer* pTxBuff, uint8 data_len, uint8 uart_no)
- {
- uint8 i;
- for(i = 0; i<data_len;i++){
- WRITE_PERI_REG(UART_FIFO(uart_no) , *(pTxBuff->pOutPos++));
- if(pTxBuff->pOutPos == (pTxBuff->pUartBuff + pTxBuff->UartBuffSize)){
- pTxBuff->pOutPos = pTxBuff->pUartBuff;
- }
- }
- pTxBuff->pOutPos = (pTxBuff->pUartBuff + (pTxBuff->pOutPos - pTxBuff->pUartBuff) % pTxBuff->UartBuffSize );
- pTxBuff->Space += data_len;
- }
- /******************************************************************************
- * FunctionName : tx_start_uart_buffer
- * Description : get data from the tx buffer and fill the uart tx fifo, co-work with the uart fifo empty interrupt
- * Parameters : uint8 uart_no - uart port num
- * Returns : NONE
- *******************************************************************************/
- void tx_start_uart_buffer(uint8 uart_no)
- {
- uint8 tx_fifo_len = (READ_PERI_REG(UART_STATUS(uart_no))>>UART_TXFIFO_CNT_S)&UART_TXFIFO_CNT;
- uint8 fifo_remain = UART_FIFO_LEN - tx_fifo_len ;
- uint8 len_tmp;
- uint16 tail_ptx_len,head_ptx_len,data_len;
- //struct UartBuffer* pTxBuff = *get_buff_prt();
-
- if(pTxBuffer){
- data_len = (pTxBuffer->UartBuffSize - pTxBuffer->Space);
- if(data_len > fifo_remain){
- len_tmp = fifo_remain;
- tx_fifo_insert( pTxBuffer,len_tmp,uart_no);
- SET_PERI_REG_MASK(UART_INT_ENA(UART0), UART_TXFIFO_EMPTY_INT_ENA);
- }else{
- len_tmp = data_len;
- tx_fifo_insert( pTxBuffer,len_tmp,uart_no);
- }
- }else{
- DBG1("pTxBuff null \n\r");
- }
- }
- #endif
- void uart_rx_intr_disable(uint8 uart_no)
- {
- #if 1
- CLEAR_PERI_REG_MASK(UART_INT_ENA(uart_no), UART_RXFIFO_FULL_INT_ENA|UART_RXFIFO_TOUT_INT_ENA);
- #else
- ETS_UART_INTR_DISABLE();
- #endif
- }
- void uart_rx_intr_enable(uint8 uart_no)
- {
- #if 1
- SET_PERI_REG_MASK(UART_INT_ENA(uart_no), UART_RXFIFO_FULL_INT_ENA|UART_RXFIFO_TOUT_INT_ENA);
- #else
- ETS_UART_INTR_ENABLE();
- #endif
- }
- //========================================================
- LOCAL void
- uart0_write_char(char c)
- {
- if (c == '\n') {
- uart_tx_one_char(UART0, '\r');
- uart_tx_one_char(UART0, '\n');
- } else if (c == '\r') {
- } else {
- uart_tx_one_char(UART0, c);
- }
- }
- void ICACHE_FLASH_ATTR
- UART_SetWordLength(uint8 uart_no, UartBitsNum4Char len)
- {
- SET_PERI_REG_BITS(UART_CONF0(uart_no),UART_BIT_NUM,len,UART_BIT_NUM_S);
- }
- void ICACHE_FLASH_ATTR
- UART_SetStopBits(uint8 uart_no, UartStopBitsNum bit_num)
- {
- SET_PERI_REG_BITS(UART_CONF0(uart_no),UART_STOP_BIT_NUM,bit_num,UART_STOP_BIT_NUM_S);
- }
- void ICACHE_FLASH_ATTR
- UART_SetLineInverse(uint8 uart_no, UART_LineLevelInverse inverse_mask)
- {
- CLEAR_PERI_REG_MASK(UART_CONF0(uart_no), UART_LINE_INV_MASK);
- SET_PERI_REG_MASK(UART_CONF0(uart_no), inverse_mask);
- }
- void ICACHE_FLASH_ATTR
- UART_SetParity(uint8 uart_no, UartParityMode Parity_mode)
- {
- CLEAR_PERI_REG_MASK(UART_CONF0(uart_no), UART_PARITY |UART_PARITY_EN);
- if(Parity_mode==NONE_BITS){
- }else{
- SET_PERI_REG_MASK(UART_CONF0(uart_no), Parity_mode|UART_PARITY_EN);
- }
- }
- void ICACHE_FLASH_ATTR
- UART_SetBaudrate(uint8 uart_no,uint32 baud_rate)
- {
- uart_div_modify(uart_no, UART_CLK_FREQ /baud_rate);
- }
- void ICACHE_FLASH_ATTR
- UART_SetFlowCtrl(uint8 uart_no,UART_HwFlowCtrl flow_ctrl,uint8 rx_thresh)
- {
- if(flow_ctrl&USART_HardwareFlowControl_RTS){
- PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDO_U, FUNC_U0RTS);
- SET_PERI_REG_BITS(UART_CONF1(uart_no),UART_RX_FLOW_THRHD,rx_thresh,UART_RX_FLOW_THRHD_S);
- SET_PERI_REG_MASK(UART_CONF1(uart_no), UART_RX_FLOW_EN);
- }else{
- CLEAR_PERI_REG_MASK(UART_CONF1(uart_no), UART_RX_FLOW_EN);
- }
- if(flow_ctrl&USART_HardwareFlowControl_CTS){
- PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTCK_U, FUNC_UART0_CTS);
- SET_PERI_REG_MASK(UART_CONF0(uart_no), UART_TX_FLOW_EN);
- }else{
- CLEAR_PERI_REG_MASK(UART_CONF0(uart_no), UART_TX_FLOW_EN);
- }
- }
- void ICACHE_FLASH_ATTR
- UART_WaitTxFifoEmpty(uint8 uart_no , uint32 time_out_us) //do not use if tx flow control enabled
- {
- uint32 t_s = system_get_time();
- while (READ_PERI_REG(UART_STATUS(uart_no)) & (UART_TXFIFO_CNT << UART_TXFIFO_CNT_S)){
-
- if(( system_get_time() - t_s )> time_out_us){
- break;
- }
- WRITE_PERI_REG(0X60000914, 0X73);//WTD
- }
- }
- bool ICACHE_FLASH_ATTR
- UART_CheckOutputFinished(uint8 uart_no, uint32 time_out_us)
- {
- uint32 t_start = system_get_time();
- uint8 tx_fifo_len;
- uint32 tx_buff_len;
- while(1){
- tx_fifo_len =( (READ_PERI_REG(UART_STATUS(uart_no))>>UART_TXFIFO_CNT_S)&UART_TXFIFO_CNT);
- if(pTxBuffer){
- tx_buff_len = ((pTxBuffer->UartBuffSize)-(pTxBuffer->Space));
- }else{
- tx_buff_len = 0;
- }
-
- if( tx_fifo_len==0 && tx_buff_len==0){
- return TRUE;
- }
- if( system_get_time() - t_start > time_out_us){
- return FALSE;
- }
- WRITE_PERI_REG(0X60000914, 0X73);//WTD
- }
- }
- void ICACHE_FLASH_ATTR
- UART_ResetFifo(uint8 uart_no)
- {
- SET_PERI_REG_MASK(UART_CONF0(uart_no), UART_RXFIFO_RST | UART_TXFIFO_RST);
- CLEAR_PERI_REG_MASK(UART_CONF0(uart_no), UART_RXFIFO_RST | UART_TXFIFO_RST);
- }
- void ICACHE_FLASH_ATTR
- UART_ClearIntrStatus(uint8 uart_no,uint32 clr_mask)
- {
- WRITE_PERI_REG(UART_INT_CLR(uart_no), clr_mask);
- }
- void ICACHE_FLASH_ATTR
- UART_SetIntrEna(uint8 uart_no,uint32 ena_mask)
- {
- SET_PERI_REG_MASK(UART_INT_ENA(uart_no), ena_mask);
- }
- void ICACHE_FLASH_ATTR
- UART_SetPrintPort(uint8 uart_no)
- {
- if(uart_no==1){
- os_install_putc1(uart1_write_char);
- }else{
- /*option 1: do not wait if uart fifo is full,drop current character*/
- os_install_putc1(uart0_write_char_no_wait);
- /*option 2: wait for a while if uart fifo is full*/
- os_install_putc1(uart0_write_char);
- }
- }
- //========================================================
- /*test code*/
- void ICACHE_FLASH_ATTR
- uart_init_2(UartBautRate uart0_br, UartBautRate uart1_br)
- {
- // rom use 74880 baut_rate, here reinitialize
- UartDev.baut_rate = uart0_br;
- UartDev.exist_parity = STICK_PARITY_EN;
- UartDev.parity = EVEN_BITS;
- UartDev.stop_bits = ONE_STOP_BIT;
- UartDev.data_bits = EIGHT_BITS;
-
- uart_config(UART0);
- UartDev.baut_rate = uart1_br;
- uart_config(UART1);
- ETS_UART_INTR_ENABLE();
- // install uart1 putc callback
- os_install_putc1((void *)uart1_write_char);//print output at UART1
- }
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