1 /* 2 * Copyright (c) 2022 Silicon Labs 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 /** 8 * @file 9 * Silabs SoC specific helpers for pinctrl driver 10 */ 11 12 #ifndef ZEPHYR_SOC_ARM_SILABS_GECKO_COMMON_PINCTRL_SOC_H_ 13 #define ZEPHYR_SOC_ARM_SILABS_GECKO_COMMON_PINCTRL_SOC_H_ 14 15 #include <stdint.h> 16 17 #include <zephyr/devicetree.h> 18 #if CONFIG_PINCTRL_SILABS_DBUS 19 #include <zephyr/sys/util.h> 20 #include <zephyr/dt-bindings/pinctrl/silabs-pinctrl-dbus.h> 21 #elif CONFIG_SOC_FAMILY_SILABS_S1 22 #include <zephyr/dt-bindings/pinctrl/gecko-pinctrl-s1.h> 23 #else 24 #include <zephyr/dt-bindings/pinctrl/gecko-pinctrl.h> 25 #endif 26 27 #ifdef __cplusplus 28 extern "C" { 29 #endif 30 31 /** @cond INTERNAL_HIDDEN */ 32 33 #if CONFIG_PINCTRL_SILABS_DBUS 34 35 /** Type for Silabs pin using DBUS. */ 36 typedef struct pinctrl_soc_pin { 37 uint16_t base_offset; 38 uint8_t port; 39 uint8_t pin; 40 uint8_t en_bit; 41 uint8_t route_offset; 42 uint8_t mode; 43 uint8_t dout; 44 } pinctrl_soc_pin_t; 45 46 #define Z_PINCTRL_SILABS_MODE_INIT(node) \ 47 (DT_PROP(node, drive_push_pull) ? (4 + DT_PROP(node, silabs_alternate_port_control)) \ 48 : DT_PROP(node, drive_open_source) ? (6 + DT_PROP(node, bias_pull_down)) \ 49 : DT_PROP(node, drive_open_drain) \ 50 ? (8 + DT_PROP(node, silabs_input_filter) + 2 * DT_PROP(node, bias_pull_up) + \ 51 4 * DT_PROP(node, silabs_alternate_port_control)) \ 52 : DT_PROP(node, input_enable) \ 53 ? ((DT_PROP(node, bias_pull_down) || DT_PROP(node, bias_pull_up)) \ 54 ? (2 + DT_PROP(node, silabs_input_filter)) \ 55 : 1) \ 56 : 0) 57 58 #define Z_PINCTRL_SILABS_DOUT_INIT(node) \ 59 (DT_PROP(node, drive_push_pull) ? DT_PROP(node, output_high) \ 60 : DT_PROP(node, drive_open_drain) ? 1 \ 61 : DT_PROP(node, input_enable) \ 62 ? ((DT_PROP(node, bias_pull_down) || DT_PROP(node, bias_pull_up)) \ 63 ? DT_PROP(node, bias_pull_up) \ 64 : DT_PROP(node, silabs_input_filter)) \ 65 : DT_PROP(node, input_disable) ? DT_PROP(node, bias_pull_up) \ 66 : 0) 67 68 #define Z_PINCTRL_STATE_PIN_INIT(node, prop, idx) \ 69 {.base_offset = \ 70 FIELD_GET(SILABS_PINCTRL_PERIPH_BASE_MASK, DT_PROP_BY_IDX(node, prop, idx)), \ 71 .port = FIELD_GET(SILABS_PINCTRL_GPIO_PORT_MASK, DT_PROP_BY_IDX(node, prop, idx)), \ 72 .pin = FIELD_GET(SILABS_PINCTRL_GPIO_PIN_MASK, DT_PROP_BY_IDX(node, prop, idx)), \ 73 .en_bit = \ 74 (FIELD_GET(SILABS_PINCTRL_HAVE_EN_MASK, DT_PROP_BY_IDX(node, prop, idx)) \ 75 ? FIELD_GET(SILABS_PINCTRL_EN_BIT_MASK, DT_PROP_BY_IDX(node, prop, idx)) \ 76 : 0xFF), \ 77 .route_offset = FIELD_GET(SILABS_PINCTRL_ROUTE_MASK, DT_PROP_BY_IDX(node, prop, idx)), \ 78 .mode = Z_PINCTRL_SILABS_MODE_INIT(node), \ 79 .dout = Z_PINCTRL_SILABS_DOUT_INIT(node)}, 80 81 #define Z_PINCTRL_STATE_PINS_INIT(node_id, prop) \ 82 {DT_FOREACH_CHILD_VARGS(DT_PHANDLE(node_id, prop), DT_FOREACH_PROP_ELEM, pins, \ 83 Z_PINCTRL_STATE_PIN_INIT)} 84 85 #else 86 87 /** Type for gecko pin. */ 88 typedef uint32_t pinctrl_soc_pin_t; 89 90 /** 91 * @brief Utility macro to initialize each pin. 92 * 93 * @param node_id Node identifier. 94 * @param prop Property name. 95 * @param idx Property entry index. 96 */ 97 #define Z_PINCTRL_STATE_PIN_INIT(node_id, prop, idx) (DT_PROP_BY_IDX(node_id, prop, idx)), 98 99 /** 100 * @brief Utility macro to initialize state pins contained in a given property. 101 * 102 * @param node_id Node identifier. 103 * @param prop Property name describing state pins. 104 */ 105 #define Z_PINCTRL_STATE_PINS_INIT(node_id, prop) \ 106 { \ 107 DT_FOREACH_CHILD_VARGS(DT_PHANDLE(node_id, prop), DT_FOREACH_PROP_ELEM, psels, \ 108 Z_PINCTRL_STATE_PIN_INIT) \ 109 } 110 111 /** 112 * @brief Utility macro to obtain pin function. 113 * 114 * @param pincfg Pin configuration bit field. 115 */ 116 #define GECKO_GET_FUN(pincfg) (((pincfg) >> GECKO_FUN_POS) & GECKO_FUN_MSK) 117 118 /** 119 * @brief Utility macro to obtain port configuration. 120 * 121 * @param pincfg port configuration bit field. 122 */ 123 #define GECKO_GET_PORT(pincfg) (((pincfg) >> GECKO_PORT_POS) & GECKO_PORT_MSK) 124 125 /** 126 * @brief Utility macro to obtain pin configuration. 127 * 128 * @param pincfg pin configuration bit field. 129 */ 130 #define GECKO_GET_PIN(pincfg) (((pincfg) >> GECKO_PIN_POS) & GECKO_PIN_MSK) 131 132 /** 133 * @brief Utility macro to obtain location configuration. 134 * 135 * @param pincfg Loc configuration bit field. 136 */ 137 #define GECKO_GET_LOC(pincfg) (((pincfg) >> GECKO_LOC_POS) & GECKO_LOC_MSK) 138 139 /** 140 * @brief Utility macro to obtain speed configuration. 141 * 142 * @param pincfg speed configuration bit field. 143 */ 144 #define GECKO_GET_SPEED(pincfg) (((pincfg) >> GECKO_SPEED_POS) & GECKO_SPEED_MSK) 145 146 #endif /* CONFIG_PINCTRL_SILABS_DBUS */ 147 148 /** @endcond */ 149 150 #ifdef __cplusplus 151 } 152 #endif 153 154 #endif /* ZEPHYR_SOC_ARM_SILABS_GECKO_COMMON_PINCTRL_SOC_H_ */ 155
