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fix set UART_FORCE_XOFF can't stop new Tx request issue

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Li Shuai
2020-12-04 11:20:07 +08:00
parent 6d12fdd6e7
commit a43de3a44b
6 changed files with 177 additions and 24 deletions
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39
components/hal/esp32/include/hal/uart_ll.h
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@@ -894,6 +894,45 @@ static inline uint16_t uart_ll_max_tout_thrd(uart_dev_t *hw)
return tout_thrd;
}
/**
* @brief Force UART xoff.
*
* @param uart_num UART port number, the max port number is (UART_NUM_MAX -1).
*
* @return None.
*/
static inline void uart_ll_force_xoff(uart_port_t uart_num)
{
/* Note: Set `UART_FORCE_XOFF` can't stop new Tx request. */
REG_SET_BIT(UART_FLOW_CONF_REG(uart_num), UART_FORCE_XOFF);
}
/**
* @brief Force UART xon.
*
* @param uart_num UART port number, the max port number is (UART_NUM_MAX -1).
*
* @return None.
*/
static inline void uart_ll_force_xon(uart_port_t uart_num)
{
REG_CLR_BIT(UART_FLOW_CONF_REG(uart_num), UART_FORCE_XOFF);
REG_SET_BIT(UART_FLOW_CONF_REG(uart_num), UART_FORCE_XON);
REG_CLR_BIT(UART_FLOW_CONF_REG(uart_num), UART_FORCE_XON);
}
/**
* @brief Get UART final state machine status.
*
* @param uart_num UART port number, the max port number is (UART_NUM_MAX -1).
*
* @return UART module FSM status.
*/
static inline uint32_t uart_ll_get_fsm_status(uart_port_t uart_num)
{
return REG_GET_FIELD(UART_STATUS_REG(uart_num), UART_ST_UTX_OUT);
}
#undef UART_LL_TOUT_REF_FACTOR_DEFAULT
#ifdef __cplusplus