config: esp32: configurable UART FIFO thresholds
The existing configuration of the ESP32 UART FIFO thresholds was fixed, leading to inefficiencies in handling Modbus RTU packages exceeding this size. This commit introduces two new Kconfig options, allowing users to adjust the esp32 fifo thresholds as needed. fixes #74311 Signed-off-by: Omer Gozderesi <omer.gozderesi@enda.com> config: esp32: configurable UART FIFO thresholds The existing configuration of the ESP32 UART FIFO thresholds was fixed, leading to inefficiencies in handling Modbus RTU packages exceeding this size. This commit introduces two new Kconfig options, allowing users to adjust the esp32 fifo thresholds as needed. fixes #74311 Signed-off-by: Omer Gozderesi <omer.gozderesi@enda.com>
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2 changed files with 18 additions and 2 deletions
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@ -27,3 +27,19 @@ config SERIAL_ESP32_USB
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USB host. The USB stack is built into the chip and accessed
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by the firmware through a simplified API similar to a "normal"
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UART peripheral.
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config UART_ESP32_TX_FIFO_THRESH
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hex "ESP32 UART TX FIFO Threshold"
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depends on UART_ESP32
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default 0x1
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range 1 127
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help
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Configure the TX FIFO threshold for ESP32 UART driver.
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config UART_ESP32_RX_FIFO_THRESH
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hex "ESP32 UART RX FIFO Threshold"
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depends on UART_ESP32
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default 0x16
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range 1 127
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help
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Configure the RX FIFO threshold for ESP32 UART driver.
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@ -116,8 +116,8 @@ struct uart_esp32_data {
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};
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#define UART_FIFO_LIMIT (UART_LL_FIFO_DEF_LEN)
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#define UART_TX_FIFO_THRESH 0x1
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#define UART_RX_FIFO_THRESH 0x16
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#define UART_TX_FIFO_THRESH (CONFIG_UART_ESP32_TX_FIFO_THRESH)
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#define UART_RX_FIFO_THRESH (CONFIG_UART_ESP32_RX_FIFO_THRESH)
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#if CONFIG_UART_INTERRUPT_DRIVEN || CONFIG_UART_ASYNC_API
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static void uart_esp32_isr(void *arg);
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