287 lines
9.1 KiB
C
287 lines
9.1 KiB
C
/*
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* Copyright (c) 2023 Silicon Labs
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/drivers/pinctrl.h>
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#include <soc_gpio.h>
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int pinctrl_configure_pins(const pinctrl_soc_pin_t *pins, uint8_t pin_cnt, uintptr_t reg)
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{
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USART_TypeDef *base = (USART_TypeDef *)reg;
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uint8_t loc;
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#ifdef CONFIG_SOC_GECKO_SERIES1
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LEUART_TypeDef *lebase = (LEUART_TypeDef *)reg;
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#else
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int usart_num = USART_NUM(base);
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#endif
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#ifdef CONFIG_UART_GECKO
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struct soc_gpio_pin rxpin = {0, 0, 0, 0};
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struct soc_gpio_pin txpin = {0, 0, 0, 0};
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#endif /* CONFIG_UART_GECKO */
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struct soc_gpio_pin pin_config = {0, 0, 0, 0};
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for (uint8_t i = 0U; i < pin_cnt; i++) {
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pin_config.port = GECKO_GET_PORT(pins[i]);
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pin_config.pin = GECKO_GET_PIN(pins[i]);
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loc = GECKO_GET_LOC(pins[i]);
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switch (GECKO_GET_FUN(pins[i])) {
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#ifdef CONFIG_UART_GECKO
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case GECKO_FUN_UART_RX:
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rxpin.port = GECKO_GET_PORT(pins[i]);
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rxpin.pin = GECKO_GET_PIN(pins[i]);
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rxpin.mode = gpioModeInput;
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rxpin.out = 1;
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GPIO_PinModeSet(rxpin.port, rxpin.pin, rxpin.mode,
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rxpin.out);
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break;
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case GECKO_FUN_UART_TX:
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txpin.port = GECKO_GET_PORT(pins[i]);
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txpin.pin = GECKO_GET_PIN(pins[i]);
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txpin.mode = gpioModePushPull;
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txpin.out = 1;
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GPIO_PinModeSet(txpin.port, txpin.pin, txpin.mode,
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txpin.out);
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break;
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#ifdef CONFIG_SOC_GECKO_SERIES1
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case GECKO_FUN_UART_RTS:
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pin_config.mode = gpioModePushPull;
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pin_config.out = 1;
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GPIO_PinModeSet(pin_config.port, pin_config.pin, pin_config.mode,
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pin_config.out);
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break;
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case GECKO_FUN_UART_CTS:
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pin_config.mode = gpioModeInput;
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pin_config.out = 1;
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GPIO_PinModeSet(pin_config.port, pin_config.pin, pin_config.mode,
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pin_config.out);
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break;
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case GECKO_FUN_UART_RX_LOC:
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base->ROUTEPEN |= USART_ROUTEPEN_RXPEN;
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base->ROUTELOC0 &= ~_USART_ROUTELOC0_RXLOC_MASK;
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base->ROUTELOC0 |= (loc << _USART_ROUTELOC0_RXLOC_SHIFT);
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break;
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case GECKO_FUN_UART_TX_LOC:
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base->ROUTEPEN |= USART_ROUTEPEN_TXPEN;
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base->ROUTELOC0 &= ~_USART_ROUTELOC0_TXLOC_MASK;
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base->ROUTELOC0 |= (loc << _USART_ROUTELOC0_TXLOC_SHIFT);
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break;
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case GECKO_FUN_UART_RTS_LOC:
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base->ROUTEPEN |= USART_ROUTEPEN_RTSPEN;
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base->ROUTELOC1 &= ~_USART_ROUTELOC1_RTSLOC_MASK;
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base->ROUTELOC1 |= (loc << _USART_ROUTELOC1_RTSLOC_SHIFT);
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break;
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case GECKO_FUN_UART_CTS_LOC:
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base->ROUTEPEN |= USART_ROUTEPEN_CTSPEN;
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base->ROUTELOC1 &= ~_USART_ROUTELOC1_CTSLOC_MASK;
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base->ROUTELOC1 |= (loc << _USART_ROUTELOC1_CTSLOC_SHIFT);
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break;
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case GECKO_FUN_LEUART_RX_LOC:
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lebase->ROUTEPEN |= LEUART_ROUTEPEN_RXPEN;
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lebase->ROUTELOC0 &= ~_LEUART_ROUTELOC0_RXLOC_MASK;
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lebase->ROUTELOC0 |= (loc << _LEUART_ROUTELOC0_RXLOC_SHIFT);
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break;
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case GECKO_FUN_LEUART_TX_LOC:
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lebase->ROUTEPEN |= LEUART_ROUTEPEN_TXPEN;
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lebase->ROUTELOC0 &= ~_LEUART_ROUTELOC0_TXLOC_MASK;
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lebase->ROUTELOC0 |= (loc << _LEUART_ROUTELOC0_TXLOC_SHIFT);
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break;
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#else /* CONFIG_SOC_GECKO_SERIES1 */
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case GECKO_FUN_UART_LOC:
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#ifdef CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION
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/* For SOCs with configurable pin_cfg locations (set in SOC Kconfig) */
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base->ROUTEPEN = USART_ROUTEPEN_RXPEN | USART_ROUTEPEN_TXPEN;
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base->ROUTELOC0 = (loc << _USART_ROUTELOC0_TXLOC_SHIFT) |
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(loc << _USART_ROUTELOC0_RXLOC_SHIFT);
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base->ROUTELOC1 = _USART_ROUTELOC1_RESETVALUE;
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#elif defined(USART_ROUTE_RXPEN) && defined(USART_ROUTE_TXPEN)
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/* For olders SOCs with only one pin location */
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base->ROUTE = USART_ROUTE_RXPEN | USART_ROUTE_TXPEN | (loc << 8);
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#elif defined(GPIO_USART_ROUTEEN_RXPEN) && defined(GPIO_USART_ROUTEEN_TXPEN)
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GPIO->USARTROUTE[usart_num].ROUTEEN =
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GPIO_USART_ROUTEEN_TXPEN | GPIO_USART_ROUTEEN_RXPEN;
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GPIO->USARTROUTE[usart_num].TXROUTE =
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(txpin.pin << _GPIO_USART_TXROUTE_PIN_SHIFT) |
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(txpin.port << _GPIO_USART_TXROUTE_PORT_SHIFT);
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GPIO->USARTROUTE[usart_num].RXROUTE =
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(rxpin.pin << _GPIO_USART_RXROUTE_PIN_SHIFT) |
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(rxpin.port << _GPIO_USART_RXROUTE_PORT_SHIFT);
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#endif /* CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION */
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#ifdef UART_GECKO_HW_FLOW_CONTROL
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/* Configure HW flow control (RTS, CTS) */
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if (config->hw_flowcontrol) {
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GPIO_PinModeSet(config->pin_rts.port,
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config->pin_rts.pin,
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config->pin_rts.mode,
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config->pin_rts.out);
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GPIO_PinModeSet(config->pin_cts.port,
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config->pin_cts.pin,
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config->pin_cts.mode,
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config->pin_cts.out);
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#ifdef CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION
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config->base->ROUTEPEN =
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USART_ROUTEPEN_RXPEN | USART_ROUTEPEN_TXPEN |
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USART_ROUTEPEN_RTSPEN | USART_ROUTEPEN_CTSPEN;
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config->base->ROUTELOC1 =
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(config->loc_rts << _USART_ROUTELOC1_RTSLOC_SHIFT) |
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(config->loc_cts << _USART_ROUTELOC1_CTSLOC_SHIFT);
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#elif defined(GPIO_USART_ROUTEEN_RTSPEN) && defined(GPIO_USART_ROUTEEN_CTSPEN)
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GPIO->USARTROUTE[usart_num].ROUTEEN =
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GPIO_USART_ROUTEEN_TXPEN | GPIO_USART_ROUTEEN_RXPEN |
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GPIO_USART_ROUTEPEN_RTSPEN | GPIO_USART_ROUTEPEN_CTSPEN;
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GPIO->USARTROUTE[usart_num].RTSROUTE =
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(config->pin_rts.pin << _GPIO_USART_RTSROUTE_PIN_SHIFT) |
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(config->pin_rts.port << _GPIO_USART_RTSROUTE_PORT_SHIFT);
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GPIO->USARTROUTE[usart_num].CTSROUTE =
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(config->pin_cts.pin << _GPIO_USART_CTSROUTE_PIN_SHIFT) |
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(config->pin_cts.port << _GPIO_USART_CTSROUTE_PORT_SHIFT);
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#endif /* CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION */
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}
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#endif /* UART_GECKO_HW_FLOW_CONTROL */
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break;
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#endif /* CONFIG_SOC_GECKO_SERIES1 */
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#endif /* CONFIG_UART_GECKO */
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#ifdef CONFIG_SPI_GECKO
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#ifdef CONFIG_SOC_GECKO_SERIES1
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case GECKO_FUN_SPIM_SCK:
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pin_config.mode = gpioModePushPull;
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pin_config.out = 1;
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GPIO_PinModeSet(pin_config.port, pin_config.pin, pin_config.mode,
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pin_config.out);
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break;
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case GECKO_FUN_SPIM_MOSI:
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pin_config.mode = gpioModePushPull;
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pin_config.out = 1;
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GPIO_PinModeSet(pin_config.port, pin_config.pin, pin_config.mode,
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pin_config.out);
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break;
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case GECKO_FUN_SPIM_MISO:
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pin_config.mode = gpioModeInput;
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pin_config.out = 1;
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GPIO_PinModeSet(pin_config.port, pin_config.pin, pin_config.mode,
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pin_config.out);
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break;
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case GECKO_FUN_SPIM_CS:
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pin_config.mode = gpioModePushPull;
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pin_config.out = 1;
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GPIO_PinModeSet(pin_config.port, pin_config.pin, pin_config.mode,
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pin_config.out);
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break;
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case GECKO_FUN_SPIS_SCK:
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pin_config.mode = gpioModeInput;
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pin_config.out = 1;
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GPIO_PinModeSet(pin_config.port, pin_config.pin, pin_config.mode,
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pin_config.out);
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break;
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case GECKO_FUN_SPIS_MOSI:
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pin_config.mode = gpioModeInput;
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pin_config.out = 1;
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GPIO_PinModeSet(pin_config.port, pin_config.pin, pin_config.mode,
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pin_config.out);
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break;
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case GECKO_FUN_SPIS_MISO:
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pin_config.mode = gpioModePushPull;
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pin_config.out = 1;
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GPIO_PinModeSet(pin_config.port, pin_config.pin, pin_config.mode,
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pin_config.out);
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break;
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case GECKO_FUN_SPIS_CS:
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pin_config.mode = gpioModeInput;
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pin_config.out = 1;
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GPIO_PinModeSet(pin_config.port, pin_config.pin, pin_config.mode,
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pin_config.out);
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break;
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case GECKO_FUN_SPI_SCK_LOC:
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base->ROUTEPEN |= USART_ROUTEPEN_CLKPEN;
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base->ROUTELOC0 &= ~_USART_ROUTELOC0_CLKLOC_MASK;
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base->ROUTELOC0 |= (loc << _USART_ROUTELOC0_CLKLOC_SHIFT);
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break;
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case GECKO_FUN_SPI_MOSI_LOC:
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base->ROUTEPEN |= USART_ROUTEPEN_TXPEN;
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base->ROUTELOC0 &= ~_USART_ROUTELOC0_TXLOC_MASK;
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base->ROUTELOC0 |= (loc << _USART_ROUTELOC0_TXLOC_SHIFT);
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break;
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case GECKO_FUN_SPI_MISO_LOC:
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base->ROUTEPEN |= USART_ROUTEPEN_RXPEN;
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base->ROUTELOC0 &= ~_USART_ROUTELOC0_RXLOC_MASK;
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base->ROUTELOC0 |= (loc << _USART_ROUTELOC0_RXLOC_SHIFT);
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break;
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case GECKO_FUN_SPI_CS_LOC:
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base->ROUTEPEN |= USART_ROUTEPEN_CSPEN;
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base->ROUTELOC0 &= ~_USART_ROUTELOC0_CSLOC_MASK;
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base->ROUTELOC0 |= (loc << _USART_ROUTELOC0_CSLOC_SHIFT);
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break;
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#else /* CONFIG_SOC_GECKO_SERIES1 */
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case GECKO_FUN_SPI_SCK:
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pin_config.mode = gpioModePushPull;
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pin_config.out = 1;
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GPIO->USARTROUTE[usart_num].ROUTEEN |= GPIO_USART_ROUTEEN_CLKPEN;
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GPIO->USARTROUTE[usart_num].CLKROUTE =
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(pin_config.pin << _GPIO_USART_CLKROUTE_PIN_SHIFT) |
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(pin_config.port << _GPIO_USART_CLKROUTE_PORT_SHIFT);
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GPIO_PinModeSet(pin_config.port, pin_config.pin, pin_config.mode,
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pin_config.out);
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break;
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case GECKO_FUN_SPI_MOSI:
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pin_config.mode = gpioModePushPull;
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pin_config.out = 1;
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GPIO->USARTROUTE[usart_num].ROUTEEN |= GPIO_USART_ROUTEEN_TXPEN;
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GPIO->USARTROUTE[usart_num].TXROUTE =
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(pin_config.pin << _GPIO_USART_TXROUTE_PIN_SHIFT) |
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(pin_config.port << _GPIO_USART_TXROUTE_PORT_SHIFT);
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GPIO_PinModeSet(pin_config.port, pin_config.pin, pin_config.mode,
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pin_config.out);
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break;
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case GECKO_FUN_SPI_MISO:
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pin_config.mode = gpioModeInput;
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pin_config.out = 1;
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GPIO->USARTROUTE[usart_num].ROUTEEN |= GPIO_USART_ROUTEEN_RXPEN;
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GPIO->USARTROUTE[usart_num].RXROUTE =
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(pin_config.pin << _GPIO_USART_RXROUTE_PIN_SHIFT) |
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(pin_config.port << _GPIO_USART_RXROUTE_PORT_SHIFT);
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GPIO_PinModeSet(pin_config.port, pin_config.pin, pin_config.mode,
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pin_config.out);
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break;
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#endif /* CONFIG_SOC_GECKO_SERIES1 */
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#endif /* CONFIG_SPI_GECKO */
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default:
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return -ENOTSUP;
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}
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}
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return 0;
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}
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