//// modified for LASS , receive data from UART0 (sensor)
static void ICACHE_FLASH_ATTR recvTask(os_event_t *events)
{
uint8_t i;
uint16 length = 0;
//char* p;
//p=&LASSstring[0];
while (READ_PERI_REG(UART_STATUS(UART0)) & (UART_RXFIFO_CNT << UART_RXFIFO_CNT_S))
{
WRITE_PERI_REG(0X60000914, 0x73); //WTD
//length=0;
while ((READ_PERI_REG(UART_STATUS(UART0)) & (UART_RXFIFO_CNT << UART_RXFIFO_CNT_S)) && (length<MAX_UARTBUFFER))
uartbuffer[length++] = READ_PERI_REG(UART_FIFO(UART0)) & 0xFF;
//refer to Plantower PMS5003
p1_0 = (uint32)uartbuffer[4]*256+(uint32)uartbuffer[5];
p2_5 = (uint32)uartbuffer[6]*256+(uint32)uartbuffer[7];
p10_0 = (uint32)uartbuffer[8]*256+(uint32)uartbuffer[9];
}
if(UART_RXFIFO_FULL_INT_ST == (READ_PERI_REG(UART_INT_ST(UART0)) & UART_RXFIFO_FULL_INT_ST))
{
WRITE_PERI_REG(UART_INT_CLR(UART0), UART_RXFIFO_FULL_INT_CLR);
}
else if(UART_RXFIFO_TOUT_INT_ST == (READ_PERI_REG(UART_INT_ST(UART0)) & UART_RXFIFO_TOUT_INT_ST))
{
WRITE_PERI_REG(UART_INT_CLR(UART0), UART_RXFIFO_TOUT_INT_CLR);
}
INFO("%s\r\n",LASSstring);
//uart_rx_intr_enable(UART0);
ETS_UART_INTR_ENABLE();
///// BUG ! TX malfunctioned!
}
static void ICACHE_FLASH_ATTR recvTask(os_event_t *events)
{
uint8_t i;
while (READ_PERI_REG(UART_STATUS(UART0)) & (UART_RXFIFO_CNT << UART_RXFIFO_CNT_S))
{
WRITE_PERI_REG(0X60000914, 0x73); //WTD
uint16 length = 0;
while ((READ_PERI_REG(UART_STATUS(UART0)) & (UART_RXFIFO_CNT << UART_RXFIFO_CNT_S)) && (length<MAX_UARTBUFFER))
uartbuffer[length++] = READ_PERI_REG(UART_FIFO(UART0)) & 0xFF;
for (i = 0; i < MAX_CONN; ++i)
if (connData[i].conn)
espbuffsent(&connData[i], uartbuffer, length);
}
if(UART_RXFIFO_FULL_INT_ST == (READ_PERI_REG(UART_INT_ST(UART0)) & UART_RXFIFO_FULL_INT_ST))
{
WRITE_PERI_REG(UART_INT_CLR(UART0), UART_RXFIFO_FULL_INT_CLR);
}
else if(UART_RXFIFO_TOUT_INT_ST == (READ_PERI_REG(UART_INT_ST(UART0)) & UART_RXFIFO_TOUT_INT_ST))
{
WRITE_PERI_REG(UART_INT_CLR(UART0), UART_RXFIFO_TOUT_INT_CLR);
}
ETS_UART_INTR_ENABLE();
}
/**
* @brief Uart receive task.
* @param events: contain the uart receive data
* @retval None
*/
static void ICACHE_FLASH_ATTR ///////
at_recvTask(os_event_t *events)
{
uint8_t temp;
while(READ_PERI_REG(UART_STATUS(UART0)) & (UART_RXFIFO_CNT << UART_RXFIFO_CNT_S))
{
temp = READ_PERI_REG(UART_FIFO(UART0)) & 0xFF;
if (ser_count>64) ser_count = 0;
ser[ser_count] = temp;
ser_count++;
ser[64] = ser_count;
feedwdt();
}
if(UART_RXFIFO_FULL_INT_ST == (READ_PERI_REG(UART_INT_ST(UART0)) & UART_RXFIFO_FULL_INT_ST))
{
WRITE_PERI_REG(UART_INT_CLR(UART0), UART_RXFIFO_FULL_INT_CLR);
}
else if(UART_RXFIFO_TOUT_INT_ST == (READ_PERI_REG(UART_INT_ST(UART0)) & UART_RXFIFO_TOUT_INT_ST))
{
WRITE_PERI_REG(UART_INT_CLR(UART0), UART_RXFIFO_TOUT_INT_CLR);
}
ETS_UART_INTR_ENABLE();
}
//Read from UART0(requires special uart.c!)
static void ICACHE_FLASH_ATTR recvTask(os_event_t *events)
{
uint8_t c, i;
char ch[1000];
c = 0;
i = 0;
//uart0_tx_buffer("uart",4);
while (READ_PERI_REG(UART_STATUS(UART0)) & (UART_RXFIFO_CNT << UART_RXFIFO_CNT_S))
{
WRITE_PERI_REG(0X60000914, 0x73); //WTD
c = READ_PERI_REG(UART_FIFO(UART0)) & 0xFF;
ch[i] = c;
i++;
}
if(UART_RXFIFO_FULL_INT_ST == (READ_PERI_REG(UART_INT_ST(UART0)) & UART_RXFIFO_FULL_INT_ST))
{
WRITE_PERI_REG(UART_INT_CLR(UART0), UART_RXFIFO_FULL_INT_CLR);
}
else if(UART_RXFIFO_TOUT_INT_ST == (READ_PERI_REG(UART_INT_ST(UART0)) & UART_RXFIFO_TOUT_INT_ST))
{
WRITE_PERI_REG(UART_INT_CLR(UART0), UART_RXFIFO_TOUT_INT_CLR);
}
ETS_UART_INTR_ENABLE();
// send to Server if available
if (pconn && i != 0)
{
espconn_sent(pconn, ch, i);
}
}
/*
* UART rx Interrupt routine
*/
static void uart_isr(void *arg)
{
uint8_t temp;
signed portBASE_TYPE ret;
portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
if (UART_RXFIFO_FULL_INT_ST != (READ_PERI_REG(UART_INT_ST(UART0)) & UART_RXFIFO_FULL_INT_ST))
{
return;
}
WRITE_PERI_REG(UART_INT_CLR(UART0), UART_RXFIFO_FULL_INT_CLR);
while (READ_PERI_REG(UART_STATUS(UART0)) & (UART_RXFIFO_CNT << UART_RXFIFO_CNT_S)) {
temp = READ_PERI_REG(UART_FIFO(UART0)) & 0xFF;
ret = xQueueSendToBackFromISR
(
uart_rx_queue,
&temp,
&xHigherPriorityTaskWoken
);
if (ret != pdTRUE)
{
uart_rx_overruns++;
}
else
{
uart_rx_bytes++;
}
}
portEND_SWITCHING_ISR( xHigherPriorityTaskWoken );
}
static __attribute__ ((section(".iram0.text"))) 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
*/
//RcvMsgBuff *pRxBuff = (RcvMsgBuff *)para;
char RcvChar;
if (UART_RXFIFO_FULL_INT_ST != (READ_PERI_REG(UART_INT_ST(UART0)) & UART_RXFIFO_FULL_INT_ST)) {
return;
}
WRITE_PERI_REG(UART_INT_CLR(UART0), UART_RXFIFO_FULL_INT_CLR);
while (READ_PERI_REG(UART_STATUS(UART0)) & (UART_RXFIFO_CNT << UART_RXFIFO_CNT_S)) {
RcvChar = READ_PERI_REG(UART_FIFO(UART0)) & 0xFF;
/* you can add your handle code below.*/
system_os_post(1, 0, RcvChar);
if (RcvChar == 114)
{
ets_uart_printf("RcvChar \r\n");
}
}
}
/******************************************************************************
* 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
*******************************************************************************/
static void // must not use ICACHE_FLASH_ATTR !
uart0_rx_intr_handler(void *para)
{
// we assume that uart1 has interrupts disabled (it uses the same interrupt vector)
uint8 uart_no = UART0;
const uint32 one_sec = 1000000; // one second in usecs
// we end up largely ignoring framing errors and we just print a warning every second max
if (READ_PERI_REG(UART_INT_RAW(uart_no)) & UART_FRM_ERR_INT_RAW) {
uint32 now = system_get_time();
if (last_frm_err == 0 || (now - last_frm_err) > one_sec) {
os_printf("UART framing error (bad baud rate?)\n");
last_frm_err = now;
}
// clear rx fifo (apparently this is not optional at this point)
SET_PERI_REG_MASK(UART_CONF0(uart_no), UART_RXFIFO_RST);
CLEAR_PERI_REG_MASK(UART_CONF0(uart_no), UART_RXFIFO_RST);
// reset framing error
WRITE_PERI_REG(UART_INT_CLR(UART0), UART_FRM_ERR_INT_CLR);
// once framing errors are gone for 10 secs we forget about having seen them
} else if (last_frm_err != 0 && (system_get_time() - last_frm_err) > 10*one_sec) {
last_frm_err = 0;
}
if (UART_RXFIFO_FULL_INT_ST == (READ_PERI_REG(UART_INT_ST(uart_no)) & UART_RXFIFO_FULL_INT_ST)
|| UART_RXFIFO_TOUT_INT_ST == (READ_PERI_REG(UART_INT_ST(uart_no)) & UART_RXFIFO_TOUT_INT_ST))
{
//DBG_UART("stat:%02X",*(uint8 *)UART_INT_ENA(uart_no));
ETS_UART_INTR_DISABLE();
post_usr_task(uart_recvTaskNum, 0);
}
}
IRAM NOINSTR static void esp_handle_uart_int(struct mgos_uart_state *us) {
if (us == NULL) return;
const int uart_no = us->uart_no;
/* Since both UARTs use the same int, we need to apply the mask manually. */
const unsigned int int_st = READ_PERI_REG(UART_INT_ST(uart_no)) &
READ_PERI_REG(UART_INT_ENA(uart_no));
const struct mgos_uart_config *cfg = &us->cfg;
if (int_st == 0) return;
us->stats.ints++;
if (int_st & UART_RXFIFO_OVF_INT_ST) us->stats.rx_overflows++;
if (int_st & UART_CTS_CHG_INT_ST) {
if (esp_uart_cts(uart_no) != 0 && esp_uart_tx_fifo_len(uart_no) > 0) {
us->stats.tx_throttles++;
}
}
if (int_st & (UART_RX_INTS | UART_TX_INTS)) {
int int_ena = UART_INFO_INTS;
if (int_st & UART_RX_INTS) us->stats.rx_ints++;
if (int_st & UART_TX_INTS) us->stats.tx_ints++;
if (adj_rx_fifo_full_thresh(us)) {
int_ena |= UART_RXFIFO_FULL_INT_ENA;
} else if (cfg->rx_fc_type == MGOS_UART_FC_SW) {
/* Send XOFF and keep RX ints disabled */
while (esp_uart_tx_fifo_len(uart_no) >= 127) {
}
esp_uart_tx_byte(uart_no, MGOS_UART_XOFF_CHAR);
us->xoff_sent = true;
}
WRITE_PERI_REG(UART_INT_ENA(uart_no), int_ena);
mgos_uart_schedule_dispatcher(uart_no, true /* from_isr */);
}
WRITE_PERI_REG(UART_INT_CLR(uart_no), int_st);
}
/******************************************************************************
* 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
*******************************************************************************/
static void ICACHE_FLASH_ATTR
uart_config(uint8 uart_no)
{
if (uart_no == UART1) {
PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO2_U, FUNC_U1TXD_BK);
//PIN_PULLDWN_DIS(PERIPHS_IO_MUX_GPIO2_U);
PIN_PULLUP_DIS(PERIPHS_IO_MUX_GPIO2_U);
} else {
/* rcv_buff size is 0x100 */
ETS_UART_INTR_ATTACH(uart0_rx_intr_handler, &(UartDev.rcv_buff));
PIN_PULLUP_DIS (PERIPHS_IO_MUX_U0TXD_U);
//PIN_PULLDWN_DIS(PERIPHS_IO_MUX_U0TXD_U);
PIN_FUNC_SELECT(PERIPHS_IO_MUX_U0TXD_U, FUNC_U0TXD);
PIN_PULLUP_DIS (PERIPHS_IO_MUX_U0RXD_U);
//PIN_PULLDWN_DIS(PERIPHS_IO_MUX_U0RXD_U);
PIN_FUNC_SELECT(PERIPHS_IO_MUX_U0RXD_U, 0); // FUNC_U0RXD==0
}
uart_div_modify(uart_no, UART_CLK_FREQ / UartDev.baut_rate);
if (uart_no == UART1) //UART 1 always 8 N 1
WRITE_PERI_REG(UART_CONF0(uart_no),
CALC_UARTMODE(EIGHT_BITS, NONE_BITS, ONE_STOP_BIT));
else
WRITE_PERI_REG(UART_CONF0(uart_no),
CALC_UARTMODE(UartDev.data_bits, UartDev.parity, UartDev.stop_bits));
//clear rx and tx fifo,not ready
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);
if (uart_no == UART0) {
// Configure RX interrupt conditions as follows: trigger rx-full when there are 80 characters
// in the buffer, trigger rx-timeout when the fifo is non-empty and nothing further has been
// received for 4 character periods.
// Set the hardware flow-control to trigger when the FIFO holds 100 characters, although
// we don't really expect the signals to actually be wired up to anything. It doesn't hurt
// to set the threshold here...
// We do not enable framing error interrupts 'cause they tend to cause an interrupt avalanche
// and instead just poll for them when we get a std RX interrupt.
WRITE_PERI_REG(UART_CONF1(uart_no),
((80 & UART_RXFIFO_FULL_THRHD) << UART_RXFIFO_FULL_THRHD_S) |
((100 & UART_RX_FLOW_THRHD) << UART_RX_FLOW_THRHD_S) |
UART_RX_FLOW_EN |
(4 & UART_RX_TOUT_THRHD) << UART_RX_TOUT_THRHD_S |
UART_RX_TOUT_EN);
SET_PERI_REG_MASK(UART_INT_ENA(uart_no), UART_RXFIFO_FULL_INT_ENA | UART_RXFIFO_TOUT_INT_ENA);
} else {
WRITE_PERI_REG(UART_CONF1(uart_no),
((UartDev.rcv_buff.TrigLvl & UART_RXFIFO_FULL_THRHD) << UART_RXFIFO_FULL_THRHD_S));
}
//clear all interrupt
WRITE_PERI_REG(UART_INT_CLR(uart_no), 0xffff);
}
void HardwareSerial::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
*/
RcvMsgBuff *pRxBuff = (RcvMsgBuff *)para;
uint8 RcvChar;
if (UART_RXFIFO_FULL_INT_ST != (READ_PERI_REG(UART_INT_ST(UART_ID_0)) & UART_RXFIFO_FULL_INT_ST))
return;
WRITE_PERI_REG(UART_INT_CLR(UART_ID_0), UART_RXFIFO_FULL_INT_CLR);
while (READ_PERI_REG(UART_STATUS(UART_ID_0)) & (UART_RXFIFO_CNT << UART_RXFIFO_CNT_S))
{
RcvChar = READ_PERI_REG(UART_FIFO(UART_ID_0)) & 0xFF;
/* you can add your handle code below.*/
if (memberData[UART_ID_0].useRxBuff)
{
*(pRxBuff->pWritePos) = RcvChar;
// insert here for get one command line from uart
if (RcvChar == '\n' )
pRxBuff->BuffState = WRITE_OVER;
pRxBuff->pWritePos++;
if (pRxBuff->pWritePos == (pRxBuff->pRcvMsgBuff + RX_BUFF_SIZE))
{
// overflow ...we may need more error handle here.
pRxBuff->pWritePos = pRxBuff->pRcvMsgBuff;
}
if (pRxBuff->pWritePos == pRxBuff->pReadPos)
{ // Prevent readbuffer overflow
if (pRxBuff->pReadPos == (pRxBuff->pRcvMsgBuff + RX_BUFF_SIZE))
{
pRxBuff->pReadPos = pRxBuff->pRcvMsgBuff ;
} else {
pRxBuff->pReadPos++;
}
}
}
if (memberData[UART_ID_0].HWSDelegate)
{
unsigned short cc;
cc = (pRxBuff->pWritePos < pRxBuff->pReadPos) ? ((pRxBuff->pWritePos + RX_BUFF_SIZE) - pRxBuff->pReadPos)
: (pRxBuff->pWritePos - pRxBuff->pReadPos);
memberData[UART_ID_0].HWSDelegate(Serial, RcvChar, cc);
}
}
}
void uart_isr(void *arg) {
uint32_t int_st = READ_PERI_REG(UART_INT_ST(0));
while (1) {
uint32_t fifo_len = READ_PERI_REG(UART_STATUS(0)) & 0xff;
if (fifo_len == 0) {
break;
}
while (fifo_len-- > 0) {
uint8_t byte = READ_PERI_REG(UART_FIFO(0)) & 0xff;
uart_isr_receive(byte);
}
}
WRITE_PERI_REG(UART_INT_CLR(0), int_st);
}
void uart_isr(void *arg) {
uint32_t int_st = READ_PERI_REG(UART_INT_ST(0));
struct uart_buf *ub = (struct uart_buf *) arg;
while (1) {
uint32_t fifo_len = READ_PERI_REG(UART_STATUS(0)) & 0xff;
if (fifo_len == 0) break;
while (fifo_len-- > 0) {
uint8_t byte = READ_PERI_REG(UART_FIFO(0)) & 0xff;
*ub->pw++ = byte;
ub->nr++;
if (ub->pw >= ub->data + UART_BUF_SIZE) ub->pw = ub->data;
}
}
WRITE_PERI_REG(UART_INT_CLR(0), int_st);
}
IRAM int esp_uart_dispatch_rx_top(int uart_no) {
struct esp_uart_state *us = s_us[uart_no];
if (us == NULL || !us->rx_enabled) return 1;
uint32_t rxn = 0;
cs_rbuf_t *rxb = &us->rx_buf;
/* RX */
if (rxb->avail > 0 && rx_fifo_len(uart_no) > 0) {
int linger_counter = 0;
/* 32 here is a constant measured (using system_get_time) to provide
* linger time of rx_linger_micros. It basically means that one iteration
* of the loop takes 3.2 us.
*
* Note: lingering may starve TX FIFO if the flow is bidirectional.
* TODO(rojer): keep transmitting from tx_buf while lingering.
*/
int max_linger = us->cfg->rx_linger_micros / 10 * 32;
#ifdef MEASURE_LINGER_TIME
uint32_t st = system_get_time();
#endif
while (rxb->avail > 0 && linger_counter <= max_linger) {
int rx_len = rx_fifo_len(uart_no);
if (rx_len > 0) {
while (rx_len-- > 0 && rxb->avail > 0) {
cs_rbuf_append_one(rxb, rx_byte(uart_no));
rxn++;
}
if (linger_counter > 0) {
us->stats.rx_linger_conts++;
linger_counter = 0;
}
} else {
linger_counter++;
}
}
#ifdef MEASURE_LINGER_TIME
fprintf(stderr, "Time spent reading: %u us\n", system_get_time() - st);
#endif
us->stats.rx_bytes += rxn;
}
int rfl = rx_fifo_len(uart_no);
if (rfl < us->cfg->rx_fifo_full_thresh) {
CLEAR_PERI_REG_MASK(UART_INT_CLR(uart_no), UART_RX_INTS);
}
return rfl == 0;
}
void HardwareSerial::uartReceiveInterruptHandler(void *para)
{
/* uart0 and uart1 intr combine togther, when interrupt occur, see reg 0x3ff20020, bit2, bit0 represents
* uart1 and uart0 respectively
*/
HardwareSerial* Self = hardwareSerialObjects[UART_ID_0];
uint8 RcvChar;
if (UART_RXFIFO_FULL_INT_ST != (READ_PERI_REG(UART_INT_ST(UART_ID_0)) & UART_RXFIFO_FULL_INT_ST))
return;
WRITE_PERI_REG(UART_INT_CLR(UART_ID_0), UART_RXFIFO_FULL_INT_CLR);
while (READ_PERI_REG(UART_STATUS(UART_ID_0)) & (UART_RXFIFO_CNT << UART_RXFIFO_CNT_S))
{
RcvChar = READ_PERI_REG(UART_FIFO(UART_ID_0)) & 0xFF;
/* you can add your handle code below.*/
if (Self->useRxBuff)
{
Self->rxBuffer.Push(RcvChar);
}
if ((Self->HWSDelegate) || (Self->commandExecutor))
{
SerialDelegateMessage serialDelegateMessage;
serialDelegateMessage.uart = Self->uart;
serialDelegateMessage.rcvChar = RcvChar;
serialDelegateMessage.charCount = Self->rxBuffer.Len();
if (Self->HWSDelegate)
{
// system_os_post(USER_TASK_PRIO_0, SERIAL_SIGNAL_DELEGATE, serialQueueParameter);
serialDelegateMessage.type = SERIAL_SIGNAL_DELEGATE;
xQueueSendToBackFromISR ( serialDelegateQueue, &serialDelegateMessage, NULL);
}
if (Self->commandExecutor)
{
// system_os_post(USER_TASK_PRIO_0, SERIAL_SIGNAL_COMMAND, serialQueueParameter);
serialDelegateMessage.type = SERIAL_SIGNAL_COMMAND;
xQueueSendToBackFromISR ( serialDelegateQueue, &serialDelegateMessage, NULL);
}
}
}
}
static void ICACHE_FLASH_ATTR user_rx_task(os_event_t *events) {
if(events->sig == 0){
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);
if( has_space() ) {
serial_buffer[putpos++ & POS_MASK] = d_tmp;
}
}
WRITE_PERI_REG(UART_INT_CLR(UART0), UART_RXFIFO_FULL_INT_CLR|UART_RXFIFO_TOUT_INT_CLR);
uart_rx_intr_enable(UART0);
if( serial_datalen() && user_rx_callback ) {
user_rx_callback(serial_datalen());
}
}
void mgos_uart_hal_dispatch_rx_top(struct mgos_uart_state *us) {
int uart_no = us->uart_no;
struct mbuf *rxb = &us->rx_buf;
uint32_t rxn = 0;
/* RX */
if (mgos_uart_rxb_free(us) > 0 && esp_uart_rx_fifo_len(uart_no) > 0) {
int linger_counter = 0;
/* 32 here is a constant measured (using system_get_time) to provide
* linger time of rx_linger_micros. It basically means that one iteration
* of the loop takes 3.2 us.
*
* Note: lingering may starve TX FIFO if the flow is bidirectional.
* TODO(rojer): keep transmitting from tx_buf while lingering.
*/
int max_linger = us->cfg.rx_linger_micros / 10 * 32;
#ifdef MEASURE_LINGER_TIME
uint32_t st = system_get_time();
#endif
while (mgos_uart_rxb_free(us) > 0 && linger_counter <= max_linger) {
size_t rx_len = esp_uart_rx_fifo_len(uart_no);
if (rx_len > 0) {
rx_len = MIN(rx_len, mgos_uart_rxb_free(us));
if (rxb->size < rxb->len + rx_len) mbuf_resize(rxb, rxb->len + rx_len);
while (rx_len > 0) {
uint8_t b = rx_byte(uart_no);
mbuf_append(rxb, &b, 1);
rx_len--;
rxn++;
}
if (linger_counter > 0) {
us->stats.rx_linger_conts++;
linger_counter = 0;
}
} else {
linger_counter++;
}
}
#ifdef MEASURE_LINGER_TIME
fprintf(stderr, "Time spent reading: %u us\n", system_get_time() - st);
#endif
us->stats.rx_bytes += rxn;
}
CLEAR_PERI_REG_MASK(UART_INT_CLR(uart_no), UART_RX_INTS);
}
void UARTInit() {
//Enable TxD pin
PIN_PULLUP_DIS(PERIPHS_IO_MUX_U0TXD_U);
PIN_FUNC_SELECT(PERIPHS_IO_MUX_U0TXD_U, FUNC_U0TXD);
//Set baud rate and other serial parameters to 115200,n,8,1
uart_div_modify(0, UART_CLK_FREQ/BIT_RATE_115200);
WRITE_PERI_REG(UART_CONF0(0), (STICK_PARITY_DIS)|(ONE_STOP_BIT << UART_STOP_BIT_NUM_S)| \
(EIGHT_BITS << UART_BIT_NUM_S));
//Reset tx & rx fifo
SET_PERI_REG_MASK(UART_CONF0(0), UART_RXFIFO_RST|UART_TXFIFO_RST);
CLEAR_PERI_REG_MASK(UART_CONF0(0), UART_RXFIFO_RST|UART_TXFIFO_RST);
//Clear pending interrupts
WRITE_PERI_REG(UART_INT_CLR(0), 0xffff);
//Install our own putchar handler
os_install_putc1((void *)UARTPutChar);
}
/******************************************************************************
* FunctionName : uart_recvTask
* Description : system task triggered on receive interrupt, empties FIFO and calls callbacks
*******************************************************************************/
static void ICACHE_FLASH_ATTR
uart_recvTask(os_event_t *events)
{
while (READ_PERI_REG(UART_STATUS(UART0)) & (UART_RXFIFO_CNT << UART_RXFIFO_CNT_S)) {
//WRITE_PERI_REG(0X60000914, 0x73); //WTD // commented out by TvE
// read a buffer-full from the uart
uint16 length = 0;
uint16 l = 0;
char buf[128];
char in_char;
bool did_start = false;
while ((READ_PERI_REG(UART_STATUS(UART0)) & (UART_RXFIFO_CNT << UART_RXFIFO_CNT_S)) &&
(length < 128)) {
in_char = READ_PERI_REG(UART_FIFO(UART0)) & 0xFF;
length++;
//look for beginning | char from BLE peripheral
if(in_char == '|')
{
did_start = true;
}
if(did_start)
{
buf[l] = in_char;
if(buf[l] == '\n' || buf[l] == '\r')
{
buf[l] = '\0';
break;
}
l++;
}
}
//DBG_UART("%d ix %d\n", system_get_time(), length);
for (int i=0; i<MAX_CB; i++) {
//if (uart_recv_cb[i] != NULL) (uart_recv_cb[i])(buf, length);
if (uart_recv_cb[i] != NULL && l > 3) (uart_recv_cb[i])(buf, l);
}
}
WRITE_PERI_REG(UART_INT_CLR(UART0), UART_RXFIFO_FULL_INT_CLR|UART_RXFIFO_TOUT_INT_CLR);
ETS_UART_INTR_ENABLE();
}
IRAM NOINSTR static void esp_handle_uart_int(struct esp_uart_state *us) {
const int uart_no = us->cfg->uart_no;
/* Since both UARTs use the same int, we need to apply the mask manually. */
const unsigned int int_st = READ_PERI_REG(UART_INT_ST(uart_no)) &
READ_PERI_REG(UART_INT_ENA(uart_no));
if (int_st == 0) return;
us->stats.ints++;
if (int_st & UART_RXFIFO_OVF_INT_ST) us->stats.rx_overflows++;
if (int_st & UART_CTS_CHG_INT_ST) {
if (cts(uart_no) != 0 && tx_fifo_len(uart_no) > 0) us->stats.tx_throttles++;
}
if (int_st & (UART_RX_INTS | UART_TX_INTS)) {
if (int_st & UART_RX_INTS) us->stats.rx_ints++;
if (int_st & UART_TX_INTS) us->stats.tx_ints++;
/* Wake up the processor and disable TX and RX ints until it runs. */
WRITE_PERI_REG(UART_INT_ENA(uart_no), UART_INFO_INTS);
us->cfg->dispatch_cb(uart_no);
}
WRITE_PERI_REG(UART_INT_CLR(uart_no), int_st);
}
void HardwareSerial::begin(const uint32_t baud/* = 9600*/)
{
//TODO: Move to params!
UartDev.baut_rate = (UartBautRate)baud;
UartDev.parity = NONE_BITS;
UartDev.exist_parity = STICK_PARITY_DIS;
UartDev.stop_bits = ONE_STOP_BIT;
UartDev.data_bits = EIGHT_BITS;
ETS_UART_INTR_ATTACH((void*)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);
uart_div_modify(uart, UART_CLK_FREQ / (UartDev.baut_rate));
WRITE_PERI_REG(UART_CONF0(uart), UartDev.exist_parity
| UartDev.parity
| (UartDev.stop_bits << UART_STOP_BIT_NUM_S)
| (UartDev.data_bits << UART_BIT_NUM_S));
//clear rx and tx fifo,not ready
SET_PERI_REG_MASK(UART_CONF0(uart), UART_RXFIFO_RST | UART_TXFIFO_RST);
CLEAR_PERI_REG_MASK(UART_CONF0(uart), UART_RXFIFO_RST | UART_TXFIFO_RST);
//set rx fifo trigger
WRITE_PERI_REG(UART_CONF1(uart), (UartDev.rcv_buff.TrigLvl & UART_RXFIFO_FULL_THRHD) << UART_RXFIFO_FULL_THRHD_S);
//clear all interrupt
WRITE_PERI_REG(UART_INT_CLR(uart), 0xffff);
//enable rx_interrupt
SET_PERI_REG_MASK(UART_INT_ENA(uart), UART_RXFIFO_FULL_INT_ENA);
ETS_UART_INTR_ENABLE();
delay(10);
Serial.println("\r\n"); // after SPAM :)
}
/******************************************************************************
* FunctionName : uart_recvTask
* Description : system task triggered on receive interrupt, empties FIFO and calls callbacks
*******************************************************************************/
static void ICACHE_FLASH_ATTR
uart_recvTask(os_event_t *events)
{
while (READ_PERI_REG(UART_STATUS(UART0)) & (UART_RXFIFO_CNT << UART_RXFIFO_CNT_S)) {
//WRITE_PERI_REG(0X60000914, 0x73); //WTD // commented out by TvE
// read a buffer-full from the uart
uint16 length = 0;
char buf[128];
while ((READ_PERI_REG(UART_STATUS(UART0)) & (UART_RXFIFO_CNT << UART_RXFIFO_CNT_S)) &&
(length < 128)) {
buf[length++] = READ_PERI_REG(UART_FIFO(UART0)) & 0xFF;
}
#ifdef UART_DBG
os_printf("%d ix %d\n", system_get_time(), length);
#endif
for (int i=0; i<MAX_CB; i++) {
if (uart_recv_cb[i] != NULL) (uart_recv_cb[i])(buf, length);
}
}
WRITE_PERI_REG(UART_INT_CLR(UART0), UART_RXFIFO_FULL_INT_CLR|UART_RXFIFO_TOUT_INT_CLR);
ETS_UART_INTR_ENABLE();
}
/**
* @brief Uart receive task.
* @param events: contain the uart receive data
* @retval None
*/
static void ICACHE_FLASH_ATTR ///////
at_recvTask(os_event_t *events)
{
static uint8_t atHead[2];
static uint8_t *pCmdLine;
uint8_t temp;
// temp = events->par;
// temp = READ_PERI_REG(UART_FIFO(UART0)) & 0xFF;
// temp = 'X';
//add transparent determine
while(READ_PERI_REG(UART_STATUS(UART0)) & (UART_RXFIFO_CNT << UART_RXFIFO_CNT_S))
{
// temp = READ_PERI_REG(UART_FIFO(UART0)) & 0xFF;
WRITE_PERI_REG(0X60000914, 0x73); //WTD
temp = READ_PERI_REG(UART_FIFO(UART0)) & 0xFF;
/*
if(at_state != at_statIpTraning)
{
temp = READ_PERI_REG(UART_FIFO(UART0)) & 0xFF;
if((temp != '\n') && (echoFlag))
{
uart_tx_one_char(temp); //display back
}
}
* */
if((at_state != at_statIpTraning) && (temp != '\n') && (echoFlag))
{
uart_tx_one_char(UART0,temp); //display back
// uart_tx_one_char(temp); //display back
}
switch(at_state)
{
case at_statIdle: //serch "AT" head
atHead[0] = atHead[1];
atHead[1] = temp;
if((os_memcmp(atHead, "AT", 2) == 0) || (os_memcmp(atHead, "at", 2) == 0))
{
at_state = at_statRecving;
pCmdLine = at_cmdLine;
atHead[1] = 0x00;
}
else if(temp == '\n') //only get enter
{
uart0_sendStr("\r\nError\r\n");
}
break;
case at_statRecving: //push receive data to cmd line
*pCmdLine = temp;
if(temp == '\n')
{
system_os_post(at_procTaskPrio, 0, 0);
at_state = at_statProcess;
if(echoFlag)
{
uart0_sendStr("\r\n"); ///////////
}
}
else if(pCmdLine >= &at_cmdLine[at_cmdLenMax - 1])
{
at_state = at_statIdle;
}
pCmdLine++;
break;
case at_statProcess: //process data
if(temp == '\n')
{
// system_os_post(at_busyTaskPrio, 0, 1);
uart0_sendStr("\r\nbusy p...\r\n");
}
break;
case at_statIpSending:
*pDataLine = temp;
if((pDataLine >= &at_dataLine[at_sendLen - 1]) || (pDataLine >= &at_dataLine[at_dataLenMax - 1]))
{
system_os_post(at_procTaskPrio, 0, 0);
at_state = at_statIpSended;
}
pDataLine++;
// *pDataLine = temp;
// if (pDataLine == &UartDev.rcv_buff.pRcvMsgBuff[at_sendLen-1])
// {
// system_os_post(at_procTaskPrio, 0, 0);
// at_state = at_statIpSended;
// }
// pDataLine++;
break;
case at_statIpSended: //send data
if(temp == '\n')
{
// system_os_post(at_busyTaskPrio, 0, 2);
uart0_sendStr("busy s...\r\n");
}
break;
case at_statIpTraning:
os_timer_disarm(&at_delayChack);
// *pDataLine = temp;
if(pDataLine > &at_dataLine[at_dataLenMax - 1])
{
os_printf("exceed\r\n");
return;
}
else if(pDataLine == &at_dataLine[at_dataLenMax - 1])
{
temp = READ_PERI_REG(UART_FIFO(UART0)) & 0xFF;
*pDataLine = temp;
pDataLine++;
at_tranLen++;
os_timer_arm(&at_delayChack, 1, 0);
return;
}
else
{
temp = READ_PERI_REG(UART_FIFO(UART0)) & 0xFF;
*pDataLine = temp;
pDataLine++;
at_tranLen++;
// if(ipDataSendFlag == 0)
// {
// os_timer_arm(&at_delayChack, 20, 0);
// }
os_timer_arm(&at_delayChack, 20, 0);
}
break;
// os_timer_disarm(&at_delayChack);
// *pDataLine = temp;
// if(pDataLine >= &at_dataLine[at_dataLenMax - 1])
// {
//// ETS_UART_INTR_DISABLE();
//// pDataLine++;
// at_tranLen++;
//// os_timer_arm(&at_delayChack, 1, 0); /////
// system_os_post(at_procTaskPrio, 0, 0);
// break;
// }
// pDataLine++;
// at_tranLen++;
// if(ipDataSendFlag == 0)
// {
// os_timer_arm(&at_delayChack, 20, 0);
// }
// break;
default:
if(temp == '\n')
{
}
break;
}
}
if(UART_RXFIFO_FULL_INT_ST == (READ_PERI_REG(UART_INT_ST(UART0)) & UART_RXFIFO_FULL_INT_ST))
{
WRITE_PERI_REG(UART_INT_CLR(UART0), UART_RXFIFO_FULL_INT_CLR);
}
else if(UART_RXFIFO_TOUT_INT_ST == (READ_PERI_REG(UART_INT_ST(UART0)) & UART_RXFIFO_TOUT_INT_ST))
{
WRITE_PERI_REG(UART_INT_CLR(UART0), UART_RXFIFO_TOUT_INT_CLR);
}
ETS_UART_INTR_ENABLE();
}
void
UART_ClearIntrStatus(UART_Port uart_no, uint32 clr_mask)
{
WRITE_PERI_REG(UART_INT_CLR(uart_no), clr_mask);
}