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uart: uart_set_pin function will now use IOMUX whenever possible

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By using IOMUX instead of GPIO Matrix for UART, it is now possible
on ESP32 boards to use the UART as a wake up source even if it is
not used as a console.
For other boards where this issue was not present, using IOMUX has
the advantage to be faster than using GPIO matrix, so a highest
baudrate can be used
This commit is contained in:
Omar Chebib
2021-07-09 14:20:33 +08:00
parent 03fb3973a2
commit 779e7400b0
24 changed files with 697 additions and 103 deletions
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103
components/soc/esp32/uart_periph.c
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@@ -19,27 +19,104 @@
*/
const uart_signal_conn_t uart_periph_signal[SOC_UART_NUM] = {
{
.tx_sig = U0TXD_OUT_IDX,
.rx_sig = U0RXD_IN_IDX,
.rts_sig = U0RTS_OUT_IDX,
.cts_sig = U0CTS_IN_IDX,
.pins = {
[SOC_UART_TX_PIN_IDX] = {
.default_gpio = U0TXD_GPIO_NUM,
.iomux_func = U0TXD_MUX_FUNC,
.input = 0,
.signal = U0TXD_OUT_IDX,
},
[SOC_UART_RX_PIN_IDX] = {
.default_gpio = U0RXD_GPIO_NUM,
.iomux_func = U0RXD_MUX_FUNC,
.input = 1,
.signal = U0RXD_IN_IDX,
},
[SOC_UART_RTS_PIN_IDX] = {
.default_gpio = U0RTS_GPIO_NUM,
.iomux_func = U0RTS_MUX_FUNC,
.input = 0,
.signal = U0RTS_OUT_IDX,
},
[SOC_UART_CTS_PIN_IDX] = {
.default_gpio = U0CTS_GPIO_NUM,
.iomux_func = U0CTS_MUX_FUNC,
.input = 1,
.signal = U0CTS_IN_IDX,
}
},
.irq = ETS_UART0_INTR_SOURCE,
.module = PERIPH_UART0_MODULE,
},
{
.tx_sig = U1TXD_OUT_IDX,
.rx_sig = U1RXD_IN_IDX,
.rts_sig = U1RTS_OUT_IDX,
.cts_sig = U1CTS_IN_IDX,
.pins = {
[SOC_UART_TX_PIN_IDX] = {
.default_gpio = U1TXD_GPIO_NUM,
.iomux_func = U1TXD_MUX_FUNC,
.input = 0,
.signal = U1TXD_OUT_IDX,
},
[SOC_UART_RX_PIN_IDX] = {
.default_gpio = U1RXD_GPIO_NUM,
.iomux_func = U1RXD_MUX_FUNC,
.input = 1,
.signal = U1RXD_IN_IDX,
},
[SOC_UART_RTS_PIN_IDX] = {
.default_gpio = U1RTS_GPIO_NUM,
.iomux_func = U1RTS_MUX_FUNC,
.input = 0,
.signal = U1RTS_OUT_IDX,
},
[SOC_UART_CTS_PIN_IDX] = {
.default_gpio = U1CTS_GPIO_NUM,
.iomux_func = U1CTS_MUX_FUNC,
.input = 1,
.signal = U1CTS_IN_IDX,
},
},
.irq = ETS_UART1_INTR_SOURCE,
.module = PERIPH_UART1_MODULE,
},
{
.tx_sig = U2TXD_OUT_IDX,
.rx_sig = U2RXD_IN_IDX,
.rts_sig = U2RTS_OUT_IDX,
.cts_sig = U2CTS_IN_IDX,
.pins = {
[SOC_UART_TX_PIN_IDX] = {
.default_gpio = U2TXD_GPIO_NUM,
.iomux_func = U2TXD_MUX_FUNC,
.input = 0,
.signal = U2TXD_OUT_IDX,
},
[SOC_UART_RX_PIN_IDX] = {
.default_gpio = U2RXD_GPIO_NUM,
.iomux_func = U2RXD_MUX_FUNC,
.input = 1,
.signal = U2RXD_IN_IDX,
},
[SOC_UART_RTS_PIN_IDX] = {
.default_gpio = U2RTS_GPIO_NUM,
.iomux_func = U2RTS_MUX_FUNC,
.input = 0,
.signal = U2RTS_OUT_IDX,
},
[SOC_UART_CTS_PIN_IDX] = {
.default_gpio = U2CTS_GPIO_NUM,
.iomux_func = U2CTS_MUX_FUNC,
.input = 1,
.signal = U2CTS_IN_IDX,
}
},
.irq = ETS_UART2_INTR_SOURCE,
.module = PERIPH_UART2_MODULE,
},
}
};