mirror of
https://github.com/espressif/esp-idf.git
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476 lines
12 KiB
C
476 lines
12 KiB
C
/*
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* SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "esp_openthread_radio.h"
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#include "sdkconfig.h"
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#include "esp_check.h"
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#include "esp_ieee802154.h"
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#include "esp_ieee802154_types.h"
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#include "esp_mac.h"
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#include "esp_openthread_common_macro.h"
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#include "esp_openthread_platform.h"
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#include "esp_openthread_types.h"
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#include "esp_random.h"
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#include "esp_system.h"
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#include "esp_timer.h"
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#include "esp_vfs.h"
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#include "esp_vfs_eventfd.h"
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#include "rom/ets_sys.h"
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#include "openthread-core-config.h"
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#include "openthread/platform/diag.h"
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#include "openthread/platform/radio.h"
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#define ESP_RECEIVE_SENSITIVITY -120
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#define EVENT_TX_DONE (1 << 0)
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#define EVENT_TX_FAILED (1 << 1)
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#define EVENT_RX_DONE (1 << 2)
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#define EVENT_ENERGY_DETECT_DONE (1 << 3)
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typedef struct {
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uint8_t length;
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uint8_t psdu[OT_RADIO_FRAME_MAX_SIZE];
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} esp_openthread_radio_tx_psdu;
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typedef struct {
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uint8_t head;
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uint8_t tail;
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uint8_t used;
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} esp_openthread_circular_queue_info_t;
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static otRadioFrame s_transmit_frame;
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static esp_openthread_radio_tx_psdu s_transmit_psdu;
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static otRadioFrame s_receive_frame[CONFIG_IEEE802154_RX_BUFFER_SIZE];
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static otRadioFrame s_ack_frame;
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static int s_ed_power;
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static int s_rssi = 127;
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static esp_ieee802154_tx_error_t s_tx_error;
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static int s_radio_event_fd = -1;
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static bool s_diag_mode = false;
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static const char *s_radio_workflow = "radio";
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static uint8_t s_txrx_events;
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static esp_openthread_circular_queue_info_t s_recv_queue = {.head = 0, .tail = 0, .used = 0};
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static void set_event(uint8_t event)
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{
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uint64_t event_write = event;
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s_txrx_events |= event;
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int ret = write(s_radio_event_fd, &event_write, sizeof(event_write));
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assert(ret == sizeof(event_write));
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}
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static inline void clr_event(uint8_t event)
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{
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s_txrx_events &= ~event;
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}
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static inline bool get_event(uint8_t event)
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{
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return s_txrx_events & event;
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}
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esp_err_t esp_openthread_radio_init(const esp_openthread_platform_config_t *config)
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{
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ESP_RETURN_ON_FALSE(s_radio_event_fd == -1, ESP_ERR_INVALID_STATE, OT_PLAT_LOG_TAG,
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"Radio was initalized already!");
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s_radio_event_fd = eventfd(0, EFD_SUPPORT_ISR);
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s_transmit_frame.mPsdu = s_transmit_psdu.psdu;
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for (uint8_t i = 0; i < CONFIG_IEEE802154_RX_BUFFER_SIZE; i++) {
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s_receive_frame[i].mPsdu = NULL;
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}
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s_ack_frame.mPsdu = NULL;
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memset(&s_recv_queue, 0, sizeof(esp_openthread_circular_queue_info_t));
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esp_ieee802154_enable();
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esp_ieee802154_set_promiscuous(false);
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esp_ieee802154_set_rx_when_idle(true);
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return esp_openthread_platform_workflow_register(&esp_openthread_radio_update, &esp_openthread_radio_process,
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s_radio_workflow);
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}
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void esp_openthread_radio_deinit(void)
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{
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if (s_radio_event_fd > 0) {
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close(s_radio_event_fd);
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s_radio_event_fd = -1;
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}
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esp_ieee802154_disable();
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esp_openthread_platform_workflow_unregister(s_radio_workflow);
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}
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void esp_openthread_radio_update(esp_openthread_mainloop_context_t *mainloop)
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{
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FD_SET(s_radio_event_fd, &mainloop->read_fds);
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if (s_radio_event_fd > mainloop->max_fd) {
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mainloop->max_fd = s_radio_event_fd;
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}
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}
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esp_err_t esp_openthread_radio_process(otInstance *aInstance, const esp_openthread_mainloop_context_t *mainloop)
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{
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uint64_t event_read;
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int ret = read(s_radio_event_fd, &event_read, sizeof(event_read));
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assert(ret == sizeof(event_read));
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if (get_event(EVENT_TX_DONE)) {
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clr_event(EVENT_TX_DONE);
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#if OPENTHREAD_CONFIG_DIAG_ENABLE
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if (otPlatDiagModeGet()) {
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otPlatDiagRadioTransmitDone(aInstance, &s_transmit_frame, OT_ERROR_NONE);
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} else
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#endif
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{
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if (s_ack_frame.mPsdu == NULL) {
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otPlatRadioTxDone(aInstance, &s_transmit_frame, NULL, OT_ERROR_NONE);
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} else {
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otPlatRadioTxDone(aInstance, &s_transmit_frame, &s_ack_frame, OT_ERROR_NONE);
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s_ack_frame.mPsdu = NULL;
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}
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}
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}
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if (get_event(EVENT_TX_FAILED)) {
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clr_event(EVENT_TX_FAILED);
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#if OPENTHREAD_CONFIG_DIAG_ENABLE
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if (otPlatDiagModeGet()) {
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otPlatDiagRadioTransmitDone(aInstance, &s_transmit_frame, OT_ERROR_CHANNEL_ACCESS_FAILURE);
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} else
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#endif
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{
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otError err = OT_ERROR_NONE;
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switch (s_tx_error) {
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case ESP_IEEE802154_TX_ERR_CCA_BUSY:
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case ESP_IEEE802154_TX_ERR_ABORT:
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case ESP_IEEE802154_TX_ERR_COEXIST:
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case ESP_IEEE802154_TX_ERR_COEXIST_REJ:
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err = OT_ERROR_CHANNEL_ACCESS_FAILURE;
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break;
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case ESP_IEEE802154_TX_ERR_NO_ACK:
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case ESP_IEEE802154_TX_ERR_INVALID_ACK:
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case ESP_IEEE802154_TX_ERR_COEXIST_ACK:
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err = OT_ERROR_NO_ACK;
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break;
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default:
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ETS_ASSERT(false);
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break;
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}
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otPlatRadioTxDone(aInstance, &s_transmit_frame, NULL, err);
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}
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}
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if (get_event(EVENT_ENERGY_DETECT_DONE)) {
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clr_event(EVENT_ENERGY_DETECT_DONE);
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otPlatRadioEnergyScanDone(aInstance, s_ed_power);
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}
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while (s_recv_queue.used) {
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if (s_receive_frame[s_recv_queue.head].mPsdu != NULL) {
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#if OPENTHREAD_CONFIG_DIAG_ENABLE
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if (otPlatDiagModeGet()) {
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otPlatDiagRadioReceiveDone(aInstance, &s_receive_frame[s_recv_queue.head], OT_ERROR_NONE);
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} else
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#endif
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{
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otPlatRadioReceiveDone(aInstance, &s_receive_frame[s_recv_queue.head], OT_ERROR_NONE);
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}
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s_receive_frame[s_recv_queue.head].mPsdu = NULL;
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s_recv_queue.head = (s_recv_queue.head + 1) % CONFIG_IEEE802154_RX_BUFFER_SIZE;
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s_recv_queue.used--;
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}
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}
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return ESP_OK;
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}
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void otPlatRadioGetIeeeEui64(otInstance *aInstance, uint8_t *aIeeeEui64)
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{
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uint8_t eui64[8] = {0};
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esp_read_mac(eui64, ESP_MAC_IEEE802154);
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memcpy(aIeeeEui64, eui64, sizeof(eui64));
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}
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void otPlatRadioSetPanId(otInstance *aInstance, uint16_t panid)
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{
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esp_ieee802154_set_panid(panid);
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}
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void otPlatRadioSetExtendedAddress(otInstance *aInstance, const otExtAddress *aAddress)
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{
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esp_ieee802154_set_extended_address(aAddress->m8);
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}
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void otPlatRadioSetShortAddress(otInstance *aInstance, uint16_t aAddress)
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{
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esp_ieee802154_set_short_address(aAddress);
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}
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void otPlatRadioSetPromiscuous(otInstance *aInstance, bool aEnable)
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{
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esp_ieee802154_set_promiscuous(aEnable);
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}
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bool otPlatRadioIsEnabled(otInstance *aInstance)
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{
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return esp_ieee802154_get_state() != ESP_IEEE802154_RADIO_DISABLE;
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}
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otError otPlatRadioEnable(otInstance *aInstance)
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{
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// radio has been enabled in esp_openthread_radio_init()
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return OT_ERROR_NONE;
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}
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otError otPlatRadioDisable(otInstance *aInstance)
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{
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esp_ieee802154_disable();
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return OT_ERROR_NONE;
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}
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otError otPlatRadioSleep(otInstance *aInstance)
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{
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esp_ieee802154_sleep();
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return OT_ERROR_NONE;
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}
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otError otPlatRadioReceive(otInstance *aInstance, uint8_t aChannel)
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{
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esp_ieee802154_set_channnel(aChannel);
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esp_ieee802154_receive();
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return OT_ERROR_NONE;
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}
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otError otPlatRadioTransmit(otInstance *aInstance, otRadioFrame *aFrame)
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{
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esp_ieee802154_set_channnel(aFrame->mChannel);
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aFrame->mPsdu[-1] = aFrame->mLength; // lenth locates one byte before the psdu (esp_openthread_radio_tx_psdu);
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esp_ieee802154_transmit(&aFrame->mPsdu[-1], aFrame->mInfo.mTxInfo.mCsmaCaEnabled);
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otPlatRadioTxStarted(aInstance, aFrame);
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return OT_ERROR_NONE;
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}
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otRadioFrame *otPlatRadioGetTransmitBuffer(otInstance *aInstance)
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{
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return &s_transmit_frame;
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}
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int8_t otPlatRadioGetRssi(otInstance *aInstance)
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{
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return s_rssi;
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}
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otRadioCaps otPlatRadioGetCaps(otInstance *aInstance)
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{
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return (otRadioCaps)(OT_RADIO_CAPS_ENERGY_SCAN | OT_RADIO_CAPS_ACK_TIMEOUT | OT_RADIO_CAPS_SLEEP_TO_TX);
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}
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bool otPlatRadioGetPromiscuous(otInstance *aInstance)
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{
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return esp_ieee802154_get_promiscuous();
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}
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void otPlatRadioEnableSrcMatch(otInstance *aInstance, bool aEnable)
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{
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esp_ieee802154_set_pending_mode(ESP_IEEE802154_AUTO_PENDING_ENABLE);
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}
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otError otPlatRadioAddSrcMatchShortEntry(otInstance *aInstance, uint16_t aShortAddress)
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{
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esp_ieee802154_add_pending_addr((uint8_t *)&aShortAddress, true);
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return OT_ERROR_NONE;
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}
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otError otPlatRadioAddSrcMatchExtEntry(otInstance *aInstance, const otExtAddress *aExtAddress)
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{
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esp_ieee802154_add_pending_addr(aExtAddress->m8, false);
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return OT_ERROR_NONE;
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}
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otError otPlatRadioClearSrcMatchShortEntry(otInstance *aInstance, uint16_t aShortAddress)
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{
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esp_ieee802154_clear_pending_addr((uint8_t *)&aShortAddress, true);
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return OT_ERROR_NONE;
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}
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otError otPlatRadioClearSrcMatchExtEntry(otInstance *aInstance, const otExtAddress *aExtAddress)
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{
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esp_ieee802154_clear_pending_addr(aExtAddress->m8, false);
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return OT_ERROR_NONE;
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}
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void otPlatRadioClearSrcMatchShortEntries(otInstance *aInstance)
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{
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esp_ieee802154_reset_pending_table(true);
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}
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void otPlatRadioClearSrcMatchExtEntries(otInstance *aInstance)
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{
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esp_ieee802154_reset_pending_table(false);
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}
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otError otPlatRadioEnergyScan(otInstance *aInstance, uint8_t aScanChannel, uint16_t aScanDuration)
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{
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esp_ieee802154_energy_detect(aScanDuration);
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return OT_ERROR_NONE;
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}
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otError otPlatRadioGetTransmitPower(otInstance *aInstance, int8_t *aPower)
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{
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*aPower = esp_ieee802154_get_txpower();
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return OT_ERROR_NONE;
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}
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otError otPlatRadioSetTransmitPower(otInstance *aInstance, int8_t aPower)
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{
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esp_ieee802154_set_txpower(aPower);
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return OT_ERROR_NONE;
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}
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otError otPlatRadioGetCcaEnergyDetectThreshold(otInstance *aInstance, int8_t *aThreshold)
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{
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*aThreshold = esp_ieee802154_get_cca_threshold();
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return OT_ERROR_NONE;
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}
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otError otPlatRadioSetCcaEnergyDetectThreshold(otInstance *aInstance, int8_t aThreshold)
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{
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esp_ieee802154_set_cca_threshold(aThreshold);
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return OT_ERROR_NONE;
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}
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int8_t otPlatRadioGetReceiveSensitivity(otInstance *aInstance)
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{
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return ESP_RECEIVE_SENSITIVITY;
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}
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void otPlatDiagModeSet(bool mode)
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{
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s_diag_mode = mode;
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}
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bool otPlatDiagModeGet(void)
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{
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return s_diag_mode;
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}
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void otPlatDiagTxPowerSet(int8_t tx_power)
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{
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OT_UNUSED_VARIABLE(tx_power);
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}
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void otPlatDiagChannelSet(uint8_t channel)
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{
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OT_UNUSED_VARIABLE(channel);
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}
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void otPlatDiagRadioReceived(otInstance *aInstance, otRadioFrame *frame, otError error)
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{
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OT_UNUSED_VARIABLE(aInstance);
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OT_UNUSED_VARIABLE(frame);
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OT_UNUSED_VARIABLE(error);
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}
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void otPlatDiagAlarmCallback(otInstance *aInstance)
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{
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OT_UNUSED_VARIABLE(aInstance);
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}
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// events
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void IRAM_ATTR esp_ieee802154_transmit_done(const uint8_t *frame, const uint8_t *ack,
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esp_ieee802154_frame_info_t *s_ack_frame_info)
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{
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ETS_ASSERT(frame == (uint8_t *)&s_transmit_psdu);
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if (ack != NULL) {
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s_ack_frame.mLength = (uint16_t)(*ack);
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s_ack_frame.mPsdu = (uint8_t *)(ack + 1);
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}
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set_event(EVENT_TX_DONE);
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}
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void IRAM_ATTR esp_ieee802154_receive_done(uint8_t *data, esp_ieee802154_frame_info_t *frame_info)
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{
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if (s_recv_queue.used == CONFIG_IEEE802154_RX_BUFFER_SIZE) {
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ESP_EARLY_LOGE(OT_PLAT_LOG_TAG, "radio receive buffer full!");
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return;
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}
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s_rssi = frame_info->rssi;
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s_receive_frame[s_recv_queue.tail].mPsdu = data + 1;
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s_receive_frame[s_recv_queue.tail].mLength = *data;
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s_receive_frame[s_recv_queue.tail].mChannel = frame_info->channel;
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s_receive_frame[s_recv_queue.tail].mInfo.mRxInfo.mRssi = frame_info->rssi;
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s_receive_frame[s_recv_queue.tail].mInfo.mRxInfo.mAckedWithFramePending = frame_info->pending;
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s_receive_frame[s_recv_queue.tail].mInfo.mRxInfo.mTimestamp = esp_timer_get_time();
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s_recv_queue.tail = (s_recv_queue.tail + 1) % CONFIG_IEEE802154_RX_BUFFER_SIZE;
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s_recv_queue.used++;
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set_event(EVENT_RX_DONE);
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}
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void IRAM_ATTR esp_ieee802154_transmit_failed(const uint8_t *frame, esp_ieee802154_tx_error_t error)
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{
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ETS_ASSERT(frame == (uint8_t *)&s_transmit_psdu);
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s_tx_error = error;
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set_event(EVENT_TX_FAILED);
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}
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void IRAM_ATTR esp_ieee802154_receive_sfd_done(void)
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{
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}
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void IRAM_ATTR esp_ieee802154_transmit_sfd_done(uint8_t *frame)
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{
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}
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void IRAM_ATTR esp_ieee802154_energy_detect_done(int8_t power)
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{
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s_ed_power = power;
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set_event(EVENT_ENERGY_DETECT_DONE);
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}
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void IRAM_ATTR esp_ieee802154_cca_done(bool channel_free)
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{
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}
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otError otPlatEntropyGet(uint8_t *aOutput, uint16_t aOutputLength)
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{
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esp_fill_random(aOutput, aOutputLength);
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return OT_ERROR_NONE;
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}
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