1 /* 2 * Copyright (c) 2022, Gerson Fernando Budke <nandojve@gmail.com> 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #include <zephyr/drivers/pinctrl.h> 8 #include <soc_port.h> 9 10 /** Utility macro that expands to the PORT port address if it exists */ 11 #define SAM_PORT_ADDR_OR_NONE(nodelabel) \ 12 IF_ENABLED(DT_NODE_EXISTS(DT_NODELABEL(nodelabel)), \ 13 (DT_REG_ADDR(DT_NODELABEL(nodelabel)),)) 14 15 /** SAM0 port addresses */ 16 static const uint32_t sam_port_addrs[] = { 17 SAM_PORT_ADDR_OR_NONE(porta) 18 SAM_PORT_ADDR_OR_NONE(portb) 19 SAM_PORT_ADDR_OR_NONE(portc) 20 SAM_PORT_ADDR_OR_NONE(portd) 21 SAM_PORT_ADDR_OR_NONE(porte) 22 SAM_PORT_ADDR_OR_NONE(portf) 23 }; 24 pinctrl_configure_pin(pinctrl_soc_pin_t pin)25static void pinctrl_configure_pin(pinctrl_soc_pin_t pin) 26 { 27 struct soc_port_pin soc_pin; 28 uint8_t port_idx, port_func; 29 30 port_idx = SAM_PINMUX_PORT_GET(pin); 31 __ASSERT_NO_MSG(port_idx < ARRAY_SIZE(sam_port_addrs)); 32 port_func = SAM_PINMUX_FUNC_GET(pin); 33 34 soc_pin.regs = (PortGroup *) sam_port_addrs[port_idx]; 35 soc_pin.pinum = SAM_PINMUX_PIN_GET(pin); 36 soc_pin.flags = SAM_PINCTRL_FLAGS_GET(pin) << SOC_PORT_FLAGS_POS; 37 38 if (port_func == SAM_PINMUX_FUNC_periph) { 39 soc_pin.flags |= (SAM_PINMUX_PERIPH_GET(pin) 40 << SOC_PORT_FUNC_POS) 41 | SOC_PORT_PMUXEN_ENABLE; 42 } 43 44 soc_port_configure(&soc_pin); 45 } 46 pinctrl_configure_pins(const pinctrl_soc_pin_t * pins,uint8_t pin_cnt,uintptr_t reg)47int pinctrl_configure_pins(const pinctrl_soc_pin_t *pins, uint8_t pin_cnt, 48 uintptr_t reg) 49 { 50 ARG_UNUSED(reg); 51 52 for (uint8_t i = 0U; i < pin_cnt; i++) { 53 pinctrl_configure_pin(*pins++); 54 } 55 56 return 0; 57 } 58
