sergiotarxz/nuttx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

xtensa/esp32: Applies REG_MASK to extract a field value

Browse Source
This commit is contained in:
Sara Souza 2021-04-28 08:48:51 -03:00 committed by Xiang Xiao
parent 50daf24242
commit 873293cc3f
1 changed files with 12 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
arch/xtensa/src/esp32/esp32_serial.c
View File

@ -443,13 +443,10 @@ static uint32_t esp32_get_rx_fifo_len(struct esp32_dev_s *priv)
uint32_t len;
mem_rx_status_reg = getreg32(UART_MEM_RX_STATUS_REG(priv->config->id));
rd_address = ((mem_rx_status_reg & UART_RD_ADDRESS_M)
>> UART_RD_ADDRESS_S);
wr_address = ((mem_rx_status_reg & UART_WR_ADDRESS_M)
>> UART_WR_ADDRESS_S);
rx_status_reg = getreg32(UART_STATUS_REG(priv->config->id));
fifo_cnt = ((rx_status_reg & UART_RXFIFO_CNT_M)
>> UART_RXFIFO_CNT_S);
rd_address = REG_MASK(mem_rx_status_reg, UART_RD_ADDRESS);
wr_address = REG_MASK(mem_rx_status_reg, UART_WR_ADDRESS);
rx_status_reg = getreg32(UART_STATUS_REG(priv->config->id));
fifo_cnt = REG_MASK(rx_status_reg, UART_RXFIFO_CNT);
if (wr_address > rd_address)
{
@ -611,8 +608,8 @@ static int esp32_setup(struct uart_dev_s *dev)
/* Configure and enable the UART */
putreg32(conf0, UART_CONF0_REG(priv->config->id));
regval = (UART_RX_FIFO_FULL_THRHD << UART_RXFIFO_FULL_THRHD_S) |
(UART_RX_TOUT_THRHD_VALUE << UART_RX_TOUT_THRHD_S) |
regval = VALUE_TO_FIELD(UART_RX_FIFO_FULL_THRHD, UART_RXFIFO_FULL_THRHD) |
VALUE_TO_FIELD(UART_RX_TOUT_THRHD_VALUE, UART_RX_TOUT_THRHD) |
UART_RX_TOUT_EN;
putreg32(regval, UART_CONF1_REG(priv->config->id));
#endif
@ -827,7 +824,7 @@ static int esp32_interrupt(int cpuint, void *context, FAR void *arg)
if ((enabled & (UART_TX_DONE_INT_ENA | UART_TXFIFO_EMPTY_INT_ENA))
!= 0)
{
nfifo = (status & UART_TXFIFO_CNT_M) >> UART_TXFIFO_CNT_S;
nfifo = REG_MASK(status, UART_TXFIFO_CNT);
if (nfifo < 0x7f)
{
/* The TXFIFO is not full ... process outgoing bytes */
@ -1066,7 +1063,7 @@ static int esp32_receive(struct uart_dev_s *dev, unsigned int *status)
rx_fifo = getreg32(DR_UART_FIFO_REG(priv->config->id));
return (int)(rx_fifo & UART_RXFIFO_RD_BYTE_M);
return (int)REG_MASK(rx_fifo, UART_RXFIFO_RD_BYTE);
}
/****************************************************************************
@ -1192,19 +1189,13 @@ static void esp32_txint(struct uart_dev_s *dev, bool enable)
static bool esp32_txready(struct uart_dev_s *dev)
{
uint32_t txcnt;
uint32_t reg;
struct esp32_dev_s *priv = (struct esp32_dev_s *)dev->priv;
txcnt = (getreg32(UART_STATUS_REG(priv->config->id)) >> UART_TXFIFO_CNT_S)
& UART_TXFIFO_CNT_V;
reg = getreg32(UART_STATUS_REG(priv->config->id));
txcnt = REG_MASK(reg, UART_TXFIFO_CNT);
if (txcnt < (UART_TX_FIFO_SIZE -1))
{
return true;
}
else
{
return false;
}
return (txcnt < (UART_TX_FIFO_SIZE - 1));
}
/****************************************************************************