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| 1 | +/* |
| 2 | + * This file is part of the MicroPython project, http://micropython.org/ |
| 3 | + * |
| 4 | + * The MIT License (MIT) |
| 5 | + * |
| 6 | + * Copyright (c) 2017 "Eric Poulsen" <eric@zyxod.com> |
| 7 | + * |
| 8 | + * Based on the ESP IDF example code which is Public Domain / CC0 |
| 9 | + * |
| 10 | + * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 11 | + * of this software and associated documentation files (the "Software"), to deal |
| 12 | + * in the Software without restriction, including without limitation the rights |
| 13 | + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 14 | + * copies of the Software, and to permit persons to whom the Software is |
| 15 | + * furnished to do so, subject to the following conditions: |
| 16 | + * |
| 17 | + * The above copyright notice and this permission notice shall be included in |
| 18 | + * all copies or substantial portions of the Software. |
| 19 | + * |
| 20 | + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 21 | + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 22 | + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 23 | + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 24 | + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 25 | + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 26 | + * THE SOFTWARE. |
| 27 | + */ |
| 28 | + |
| 29 | +#include "py/runtime.h" |
| 30 | +#include "py/mphal.h" |
| 31 | + |
| 32 | +#include "eth_phy/phy.h" |
| 33 | +#include "eth_phy/phy_tlk110.h" |
| 34 | +#include "eth_phy/phy_lan8720.h" |
| 35 | +#include "tcpip_adapter.h" |
| 36 | + |
| 37 | +#include "modnetwork.h" |
| 38 | + |
| 39 | +typedef struct _lan_if_obj_t { |
| 40 | + mp_obj_base_t base; |
| 41 | + int if_id; // MUST BE FIRST to match wlan_if_obj_t |
| 42 | + bool initialized; |
| 43 | + bool active; |
| 44 | + uint8_t mdc_pin; |
| 45 | + uint8_t mdio_pin; |
| 46 | + int8_t phy_power_pin; |
| 47 | + uint8_t phy_addr; |
| 48 | + uint8_t phy_type; |
| 49 | + eth_phy_check_link_func link_func; |
| 50 | + eth_phy_power_enable_func power_func; |
| 51 | +} lan_if_obj_t; |
| 52 | + |
| 53 | +const mp_obj_type_t lan_if_type; |
| 54 | +STATIC lan_if_obj_t lan_obj = {{&lan_if_type}, ESP_IF_ETH, false, false}; |
| 55 | + |
| 56 | +STATIC void phy_power_enable(bool enable) { |
| 57 | + lan_if_obj_t* self = &lan_obj; |
| 58 | + |
| 59 | + if (self->phy_power_pin != -1) { |
| 60 | + |
| 61 | + if (!enable) { |
| 62 | + // Do the PHY-specific power_enable(false) function before powering down |
| 63 | + self->power_func(false); |
| 64 | + } |
| 65 | + |
| 66 | + gpio_pad_select_gpio(self->phy_power_pin); |
| 67 | + gpio_set_direction(self->phy_power_pin, GPIO_MODE_OUTPUT); |
| 68 | + if (enable) { |
| 69 | + gpio_set_level(self->phy_power_pin, 1); |
| 70 | + } else { |
| 71 | + gpio_set_level(self->phy_power_pin, 0); |
| 72 | + } |
| 73 | + |
| 74 | + // Allow the power up/down to take effect, min 300us |
| 75 | + vTaskDelay(1); |
| 76 | + |
| 77 | + if (enable) { |
| 78 | + // Run the PHY-specific power on operations now the PHY has power |
| 79 | + self->power_func(true); |
| 80 | + } |
| 81 | + } |
| 82 | +} |
| 83 | + |
| 84 | +STATIC void init_lan_rmii() { |
| 85 | + lan_if_obj_t* self = &lan_obj; |
| 86 | + phy_rmii_configure_data_interface_pins(); |
| 87 | + phy_rmii_smi_configure_pins(self->mdc_pin, self->mdio_pin); |
| 88 | +} |
| 89 | + |
| 90 | +STATIC mp_obj_t get_lan(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) { |
| 91 | + lan_if_obj_t* self = &lan_obj; |
| 92 | + |
| 93 | + if (self->initialized) { |
| 94 | + return MP_OBJ_FROM_PTR(&lan_obj); |
| 95 | + } |
| 96 | + |
| 97 | + enum { ARG_id, ARG_mdc, ARG_mdio, ARG_power, ARG_phy_addr, ARG_phy_type }; |
| 98 | + static const mp_arg_t allowed_args[] = { |
| 99 | + { MP_QSTR_id, MP_ARG_OBJ, {.u_obj = mp_const_none} }, |
| 100 | + { MP_QSTR_mdc, MP_ARG_KW_ONLY | MP_ARG_REQUIRED | MP_ARG_OBJ }, |
| 101 | + { MP_QSTR_mdio, MP_ARG_KW_ONLY | MP_ARG_REQUIRED | MP_ARG_OBJ }, |
| 102 | + { MP_QSTR_power, MP_ARG_KW_ONLY | MP_ARG_REQUIRED | MP_ARG_OBJ }, |
| 103 | + { MP_QSTR_phy_addr, MP_ARG_KW_ONLY | MP_ARG_REQUIRED | MP_ARG_INT }, |
| 104 | + { MP_QSTR_phy_type, MP_ARG_KW_ONLY | MP_ARG_REQUIRED | MP_ARG_INT }, |
| 105 | + }; |
| 106 | + |
| 107 | + mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)]; |
| 108 | + mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args); |
| 109 | + |
| 110 | + if (args[ARG_id].u_obj != mp_const_none) { |
| 111 | + if (mp_obj_get_int(args[ARG_id].u_obj) != 0) { |
| 112 | + mp_raise_ValueError("invalid LAN interface identifier"); |
| 113 | + } |
| 114 | + } |
| 115 | + |
| 116 | + self->mdc_pin = machine_pin_get_id(args[ARG_mdc].u_obj); |
| 117 | + self->mdio_pin = machine_pin_get_id(args[ARG_mdio].u_obj); |
| 118 | + self->phy_power_pin = args[ARG_power].u_obj == mp_const_none ? -1 : machine_pin_get_id(args[ARG_power].u_obj); |
| 119 | + |
| 120 | + if (args[ARG_phy_addr].u_int < 0x00 || args[ARG_phy_addr].u_int > 0x1f) { |
| 121 | + mp_raise_ValueError("invalid phy address"); |
| 122 | + } |
| 123 | + |
| 124 | + if (args[ARG_phy_type].u_int != PHY_LAN8720 && args[ARG_phy_type].u_int != PHY_TLK110) { |
| 125 | + mp_raise_ValueError("invalid phy type"); |
| 126 | + } |
| 127 | + |
| 128 | + eth_config_t config; |
| 129 | + |
| 130 | + switch (args[ARG_phy_type].u_int) { |
| 131 | + case PHY_TLK110: |
| 132 | + config = phy_tlk110_default_ethernet_config; |
| 133 | + break; |
| 134 | + case PHY_LAN8720: |
| 135 | + config = phy_lan8720_default_ethernet_config; |
| 136 | + break; |
| 137 | + } |
| 138 | + |
| 139 | + self->link_func = config.phy_check_link; |
| 140 | + |
| 141 | + // Replace default power func with our own |
| 142 | + self->power_func = config.phy_power_enable; |
| 143 | + config.phy_power_enable = phy_power_enable; |
| 144 | + |
| 145 | + config.phy_addr = args[ARG_phy_addr].u_int; |
| 146 | + config.gpio_config = init_lan_rmii; |
| 147 | + config.tcpip_input = tcpip_adapter_eth_input; |
| 148 | + |
| 149 | + if (esp_eth_init(&config) == ESP_OK) { |
| 150 | + self->active = false; |
| 151 | + self->initialized = true; |
| 152 | + } else { |
| 153 | + mp_raise_msg(&mp_type_OSError, "esp_eth_init() failed"); |
| 154 | + } |
| 155 | + return MP_OBJ_FROM_PTR(&lan_obj); |
| 156 | +} |
| 157 | +MP_DEFINE_CONST_FUN_OBJ_KW(get_lan_obj, 0, get_lan); |
| 158 | + |
| 159 | +STATIC mp_obj_t lan_active(size_t n_args, const mp_obj_t *args) { |
| 160 | + lan_if_obj_t *self = MP_OBJ_TO_PTR(args[0]); |
| 161 | + |
| 162 | + if (n_args > 1) { |
| 163 | + if (mp_obj_is_true(args[1])) { |
| 164 | + self->active = (esp_eth_enable() == ESP_OK); |
| 165 | + if (!self->active) { |
| 166 | + mp_raise_msg(&mp_type_OSError, "ethernet enable failed"); |
| 167 | + } |
| 168 | + } else { |
| 169 | + self->active = !(esp_eth_disable() == ESP_OK); |
| 170 | + if (self->active) { |
| 171 | + mp_raise_msg(&mp_type_OSError, "ethernet disable failed"); |
| 172 | + } |
| 173 | + } |
| 174 | + } |
| 175 | + return mp_obj_new_bool(self->active); |
| 176 | +} |
| 177 | +STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(lan_active_obj, 1, 2, lan_active); |
| 178 | + |
| 179 | +STATIC mp_obj_t lan_status(mp_obj_t self_in) { |
| 180 | + return mp_const_none; |
| 181 | +} |
| 182 | +STATIC MP_DEFINE_CONST_FUN_OBJ_1(lan_status_obj, lan_status); |
| 183 | + |
| 184 | +STATIC mp_obj_t lan_isconnected(mp_obj_t self_in) { |
| 185 | + lan_if_obj_t *self = MP_OBJ_TO_PTR(self_in); |
| 186 | + return self->active ? mp_obj_new_bool(self->link_func()) : mp_const_false; |
| 187 | +} |
| 188 | +STATIC MP_DEFINE_CONST_FUN_OBJ_1(lan_isconnected_obj, lan_isconnected); |
| 189 | + |
| 190 | +STATIC const mp_rom_map_elem_t lan_if_locals_dict_table[] = { |
| 191 | + { MP_ROM_QSTR(MP_QSTR_active), MP_ROM_PTR(&lan_active_obj) }, |
| 192 | + { MP_ROM_QSTR(MP_QSTR_isconnected), MP_ROM_PTR(&lan_isconnected_obj) }, |
| 193 | + { MP_ROM_QSTR(MP_QSTR_status), MP_ROM_PTR(&lan_status_obj) }, |
| 194 | + { MP_ROM_QSTR(MP_QSTR_ifconfig), MP_ROM_PTR(&esp_ifconfig_obj) }, |
| 195 | +}; |
| 196 | + |
| 197 | +STATIC MP_DEFINE_CONST_DICT(lan_if_locals_dict, lan_if_locals_dict_table); |
| 198 | + |
| 199 | +const mp_obj_type_t lan_if_type = { |
| 200 | + { &mp_type_type }, |
| 201 | + .name = MP_QSTR_LAN, |
| 202 | + .locals_dict = (mp_obj_dict_t*)&lan_if_locals_dict, |
| 203 | +}; |
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