/* * SPDX-FileCopyrightText: 2023-2024 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 */ #include #include "freertos/portmacro.h" #include "soc/periph_defs.h" #include "soc/soc.h" #include "soc/ieee802154_periph.h" #include "esp_private/esp_modem_clock.h" #include "esp_check.h" #include "esp_coex_i154.h" #include "esp_err.h" #include "esp_log.h" #include "esp_timer.h" #include "esp_ieee802154_ack.h" #include "esp_ieee802154_dev.h" #include "esp_ieee802154_frame.h" #include "esp_ieee802154_pib.h" #include "esp_ieee802154_sec.h" #include "esp_ieee802154_util.h" #include "esp_ieee802154_timer.h" #include "hal/ieee802154_ll.h" #include "esp_attr.h" #include "esp_phy_init.h" #if SOC_PM_MODEM_RETENTION_BY_REGDMA && CONFIG_FREERTOS_USE_TICKLESS_IDLE #include "esp_pm.h" #include "esp_private/esp_clk.h" #include "esp_private/sleep_retention.h" #include "esp_private/sleep_modem.h" #if SOC_PM_RETENTION_HAS_CLOCK_BUG #define IEEE802154_LINK_OWNER ENTRY(3) #else #define IEEE802154_LINK_OWNER ENTRY(0) | ENTRY(2) #endif // SOC_PM_RETENTION_HAS_CLOCK_BUG #endif // SOC_PM_MODEM_RETENTION_BY_REGDMA && CONFIG_FREERTOS_USE_TICKLESS_IDLE static bool s_rf_closed = true; #define CCA_DETECTION_TIME 8 extern void bt_bb_set_zb_tx_on_delay(uint16_t time); IEEE802154_STATIC volatile ieee802154_state_t s_ieee802154_state; static uint8_t *s_tx_frame = NULL; #define IEEE802154_RX_FRAME_SIZE (127 + 1 + 1) // +1: len, +1: for dma test // +1: for the stub buffer when the valid buffers are full. // // |--------------------VB[0]--------------------| // |--------------------VB[1]--------------------| // |--------------------VB[2]--------------------| // |--------------------VB[3]--------------------| // |--------------------.....--------------------| // |-----VB[CONFIG_IEEE802154_RX_BUFFER_SIZE]----| // |---------------------STUB--------------------| // // VB: Valid buffer, used for storing the frame received by HW. // STUB : Stub buffer, used when all valid buffers are under processing, the received frame will be dropped. static uint8_t s_rx_frame[CONFIG_IEEE802154_RX_BUFFER_SIZE + 1][IEEE802154_RX_FRAME_SIZE]; static esp_ieee802154_frame_info_t s_rx_frame_info[CONFIG_IEEE802154_RX_BUFFER_SIZE + 1]; static uint8_t s_rx_index = 0; static uint8_t s_enh_ack_frame[128]; static uint8_t s_recent_rx_frame_info_index; static portMUX_TYPE s_ieee802154_spinlock = portMUX_INITIALIZER_UNLOCKED; static intr_handle_t s_ieee802154_isr_handle = NULL; static esp_err_t ieee802154_sleep_init(void); static esp_err_t ieee802154_sleep_deinit(void); static void next_operation(void); static esp_err_t ieee802154_transmit_internal(const uint8_t *frame, bool cca); #if !CONFIG_IEEE802154_TEST typedef struct { const uint8_t *frame; bool cca; } pending_tx_t; static pending_tx_t s_pending_tx = { 0 }; #endif static void ieee802154_receive_done(uint8_t *data, esp_ieee802154_frame_info_t *frame_info) { // If the RX done packet is written in the stub buffer, drop it silently. if (s_rx_index == CONFIG_IEEE802154_RX_BUFFER_SIZE) { esp_rom_printf("receive buffer full, drop the current frame.\n"); } else { // Otherwise, post it to the upper layer. frame_info->process = true; esp_ieee802154_receive_done(data, frame_info); } } static void ieee802154_transmit_done(const uint8_t *frame, const uint8_t *ack, esp_ieee802154_frame_info_t *ack_frame_info) { if (ack && ack_frame_info) { if (s_rx_index == CONFIG_IEEE802154_RX_BUFFER_SIZE) { esp_rom_printf("receive buffer full, drop the current ack frame.\n"); esp_ieee802154_transmit_failed(frame, ESP_IEEE802154_TX_ERR_NO_ACK); } else { ack_frame_info->process = true; esp_ieee802154_transmit_done(frame, ack, ack_frame_info); } } else { esp_ieee802154_transmit_done(frame, ack, ack_frame_info); } } esp_err_t ieee802154_receive_handle_done(const uint8_t *data) { uint16_t size = data - &s_rx_frame[0][0]; if ((size % IEEE802154_RX_FRAME_SIZE) != 0 || (size / IEEE802154_RX_FRAME_SIZE) >= CONFIG_IEEE802154_RX_BUFFER_SIZE) { return ESP_FAIL; } s_rx_frame_info[size / IEEE802154_RX_FRAME_SIZE].process = false; return ESP_OK; } static IRAM_ATTR void event_end_process(void) { ieee802154_etm_channel_clear(IEEE802154_ETM_CHANNEL0); ieee802154_etm_channel_clear(IEEE802154_ETM_CHANNEL1); ieee802154_ll_set_transmit_security(false); ieee802154_timer0_stop(); } #if !CONFIG_IEEE802154_TEST static IRAM_ATTR void receive_ack_timeout_timer_start(uint32_t duration) { ieee802154_ll_enable_events(IEEE802154_EVENT_TIMER0_OVERFLOW); ieee802154_timer0_set_threshold(duration); ieee802154_timer0_start(); } #endif static void ieee802154_rx_frame_info_update(void) { uint8_t len = s_rx_frame[s_rx_index][0]; int8_t rssi = s_rx_frame[s_rx_index][len - 1]; // crc is not written to rx buffer uint8_t lqi = s_rx_frame[s_rx_index][len]; s_rx_frame_info[s_rx_index].channel = ieee802154_freq_to_channel(ieee802154_ll_get_freq()); s_rx_frame_info[s_rx_index].rssi = rssi + IEEE802154_RSSI_COMPENSATION_VALUE; s_rx_frame_info[s_rx_index].lqi = lqi; s_recent_rx_frame_info_index = s_rx_index; } int8_t ieee802154_get_recent_rssi(void) { return s_rx_frame_info[s_recent_rx_frame_info_index].rssi; } uint8_t ieee802154_get_recent_lqi(void) { return s_rx_frame_info[s_recent_rx_frame_info_index].lqi; } IEEE802154_STATIC void set_next_rx_buffer(void) { uint8_t* next_rx_buffer = NULL; uint8_t index = 0; if (s_rx_index != CONFIG_IEEE802154_RX_BUFFER_SIZE && s_rx_frame_info[s_rx_index].process == false) { // If buffer is not full, and current index is empty, set it to hardware. next_rx_buffer = s_rx_frame[s_rx_index]; } else { // Otherwise, trave the buffer to find an empty one. // Notice, the s_rx_index + 1 is more like an empty one, so check it first. for (uint8_t i = 1; i <= CONFIG_IEEE802154_RX_BUFFER_SIZE; i++) { index = (i + s_rx_index) % CONFIG_IEEE802154_RX_BUFFER_SIZE; if (s_rx_frame_info[index].process == true) { continue; } else { s_rx_index = index; next_rx_buffer = s_rx_frame[s_rx_index]; break; } } } // If all buffer is under processing by the upper layer, we set the stub buffer, and // will not post the received frame to the upper layer. if (!next_rx_buffer) { s_rx_index = CONFIG_IEEE802154_RX_BUFFER_SIZE; next_rx_buffer = s_rx_frame[CONFIG_IEEE802154_RX_BUFFER_SIZE]; } ieee802154_ll_set_rx_addr(next_rx_buffer); } static bool stop_rx(void) { ieee802154_ll_events events; ieee802154_set_cmd(IEEE802154_CMD_STOP); events = ieee802154_ll_get_events(); if (events & IEEE802154_EVENT_RX_DONE) { ieee802154_receive_done((uint8_t *)s_rx_frame[s_rx_index], &s_rx_frame_info[s_rx_index]); } ieee802154_ll_clear_events(IEEE802154_EVENT_RX_DONE | IEEE802154_EVENT_RX_ABORT | IEEE802154_EVENT_RX_SFD_DONE); return true; } static bool stop_tx_ack(void) { ieee802154_set_cmd(IEEE802154_CMD_STOP); ieee802154_receive_done((uint8_t *)s_rx_frame[s_rx_index], &s_rx_frame_info[s_rx_index]); ieee802154_ll_clear_events(IEEE802154_EVENT_ACK_TX_DONE | IEEE802154_EVENT_RX_ABORT | IEEE802154_EVENT_TX_SFD_DONE); // ZB-81: clear TX_SFD_DONE event return true; } static bool stop_tx(void) { ieee802154_ll_events events; ieee802154_set_cmd(IEEE802154_CMD_STOP); events = ieee802154_ll_get_events(); if (s_ieee802154_state == IEEE802154_STATE_TX_ENH_ACK) { // if current operation is sending 2015 Enh-ack, SW should create the receive-done event. ieee802154_receive_done((uint8_t *)s_rx_frame[s_rx_index], &s_rx_frame_info[s_rx_index]); ieee802154_ll_clear_events(IEEE802154_EVENT_ACK_TX_DONE); } else if ((events & IEEE802154_EVENT_TX_DONE) && (!ieee802154_frame_is_ack_required(s_tx_frame) || !ieee802154_ll_get_rx_auto_ack())) { // if the tx is already done, and the frame is not ack request OR auto ack rx is disabled. ieee802154_transmit_done(s_tx_frame, NULL, NULL); } else { esp_ieee802154_transmit_failed(s_tx_frame, ESP_IEEE802154_TX_ERR_ABORT); } ieee802154_ll_clear_events(IEEE802154_EVENT_TX_DONE | IEEE802154_EVENT_TX_ABORT | IEEE802154_EVENT_TX_SFD_DONE); return true; } static bool stop_cca(void) { ieee802154_set_cmd(IEEE802154_CMD_STOP); ieee802154_ll_clear_events(IEEE802154_EVENT_ED_DONE | IEEE802154_EVENT_RX_ABORT); return true; } static bool stop_tx_cca(void) { stop_tx(); // in case the transmission already started ieee802154_ll_clear_events(IEEE802154_EVENT_TX_ABORT); return true; } static bool stop_rx_ack(void) { ieee802154_ll_events events; ieee802154_set_cmd(IEEE802154_CMD_STOP); events = ieee802154_ll_get_events(); ieee802154_timer0_stop(); ieee802154_ll_disable_events(IEEE802154_EVENT_TIMER0_OVERFLOW); if (events & IEEE802154_EVENT_ACK_RX_DONE) { ieee802154_transmit_done(s_tx_frame, (uint8_t *)&s_rx_frame[s_rx_index], &s_rx_frame_info[s_rx_index]); } else { esp_ieee802154_transmit_failed(s_tx_frame, ESP_IEEE802154_TX_ERR_NO_ACK); } ieee802154_ll_clear_events(IEEE802154_EVENT_ACK_RX_DONE | IEEE802154_EVENT_RX_SFD_DONE | IEEE802154_EVENT_TX_ABORT); return true; } static bool stop_ed(void) { ieee802154_set_cmd(IEEE802154_CMD_STOP); ieee802154_ll_clear_events(IEEE802154_EVENT_ED_DONE | IEEE802154_EVENT_RX_ABORT); return true; } IEEE802154_STATIC bool stop_current_operation(void) { event_end_process(); switch (s_ieee802154_state) { case IEEE802154_STATE_DISABLE: break; case IEEE802154_STATE_IDLE: ieee802154_ll_set_cmd(IEEE802154_CMD_STOP); break; case IEEE802154_STATE_SLEEP: // Do nothing break; case IEEE802154_STATE_RX: stop_rx(); break; case IEEE802154_STATE_TX_ACK: stop_tx_ack(); break; case IEEE802154_STATE_TX_CCA: stop_tx_cca(); break; case IEEE802154_STATE_CCA: stop_cca(); break; case IEEE802154_STATE_TX: case IEEE802154_STATE_TX_ENH_ACK: stop_tx(); break; case IEEE802154_STATE_RX_ACK: stop_rx_ack(); break; case IEEE802154_STATE_ED: stop_ed(); break; default: IEEE802154_ASSERT(false); break; } return true; } static void enable_rx(void) { set_next_rx_buffer(); IEEE802154_SET_TXRX_PTI(IEEE802154_SCENE_RX); ieee802154_set_cmd(IEEE802154_CMD_RX_START); ieee802154_set_state(IEEE802154_STATE_RX); } static IRAM_ATTR void next_operation(void) { #if !CONFIG_IEEE802154_TEST if (s_pending_tx.frame) { // Here the driver needs to recover the setting of rx aborts, see function `ieee802154_transmit`. ieee802154_ll_enable_rx_abort_events(BIT(IEEE802154_RX_ABORT_BY_TX_ACK_TIMEOUT - 1) | BIT(IEEE802154_RX_ABORT_BY_TX_ACK_COEX_BREAK - 1)); ieee802154_transmit_internal(s_pending_tx.frame, s_pending_tx.cca); s_pending_tx.frame = NULL; } else #endif { if (ieee802154_pib_get_rx_when_idle()) { enable_rx(); } else { ieee802154_set_state(IEEE802154_STATE_IDLE); ieee802154_sleep(); } } } static void isr_handle_timer0_done(void) { #if !CONFIG_IEEE802154_TEST if (s_ieee802154_state == IEEE802154_STATE_RX_ACK) { esp_ieee802154_transmit_failed(s_tx_frame, ESP_IEEE802154_TX_ERR_NO_ACK); next_operation(); } #else esp_ieee802154_timer0_done(); #endif } static void isr_handle_timer1_done(void) { // timer 1 is now unused. #if CONFIG_IEEE802154_TEST esp_ieee802154_timer1_done(); #endif } static IRAM_ATTR void isr_handle_tx_done(void) { event_end_process(); if (s_ieee802154_state == IEEE802154_STATE_TX_ENH_ACK) { ieee802154_receive_done((uint8_t *)s_rx_frame[s_rx_index], &s_rx_frame_info[s_rx_index]); next_operation(); } else { if (s_ieee802154_state == IEEE802154_STATE_TEST_TX) { ieee802154_transmit_done(s_tx_frame, NULL, NULL); next_operation(); } else if (s_ieee802154_state == IEEE802154_STATE_TX || s_ieee802154_state == IEEE802154_STATE_TX_CCA) { if (ieee802154_frame_is_ack_required(s_tx_frame) && ieee802154_ll_get_rx_auto_ack()) { ieee802154_set_state(IEEE802154_STATE_RX_ACK); #if !CONFIG_IEEE802154_TEST receive_ack_timeout_timer_start(200000); // 200ms for receive ack timeout #endif } else { ieee802154_transmit_done(s_tx_frame, NULL, NULL); next_operation(); } } } } static IRAM_ATTR void isr_handle_rx_done(void) { event_end_process(); ieee802154_rx_frame_info_update(); if (s_ieee802154_state == IEEE802154_STATE_RX) { if (ieee802154_frame_is_ack_required(s_rx_frame[s_rx_index]) && ieee802154_frame_get_version(s_rx_frame[s_rx_index]) <= IEEE802154_FRAME_VERSION_1 && ieee802154_ll_get_tx_auto_ack()) { // auto tx ack only works for the frame with version 0b00 and 0b01 s_rx_frame_info[s_rx_index].pending = ieee802154_ack_config_pending_bit(s_rx_frame[s_rx_index]); ieee802154_set_state(IEEE802154_STATE_TX_ACK); } else if (ieee802154_frame_is_ack_required(s_rx_frame[s_rx_index]) && ieee802154_frame_get_version(s_rx_frame[s_rx_index]) == IEEE802154_FRAME_VERSION_2 && ieee802154_ll_get_tx_enhance_ack()) { s_rx_frame_info[s_rx_index].pending = ieee802154_ack_config_pending_bit(s_rx_frame[s_rx_index]); // For 2015 enh-ack, SW should generate an enh-ack then send it manually if (esp_ieee802154_enh_ack_generator(s_rx_frame[s_rx_index], &s_rx_frame_info[s_rx_index], s_enh_ack_frame) == ESP_OK) { #if !CONFIG_IEEE802154_TEST // Send the Enh-Ack frame if generator succeeds. ieee802154_ll_set_tx_addr(s_enh_ack_frame); s_tx_frame = s_enh_ack_frame; ieee802154_sec_update(); ieee802154_ll_enhack_generate_done_notify(); ieee802154_set_state(IEEE802154_STATE_TX_ENH_ACK); #endif } else { // Stop current process if generator returns errors. ieee802154_set_cmd(IEEE802154_CMD_STOP); ieee802154_receive_done((uint8_t *)s_rx_frame[s_rx_index], &s_rx_frame_info[s_rx_index]); next_operation(); } } else { ieee802154_receive_done((uint8_t *)s_rx_frame[s_rx_index], &s_rx_frame_info[s_rx_index]); next_operation(); } } } static IRAM_ATTR void isr_handle_ack_tx_done(void) { ieee802154_receive_done((uint8_t *)s_rx_frame[s_rx_index], &s_rx_frame_info[s_rx_index]); next_operation(); } static IRAM_ATTR void isr_handle_ack_rx_done(void) { ieee802154_timer0_stop(); ieee802154_ll_disable_events(IEEE802154_EVENT_TIMER0_OVERFLOW); ieee802154_rx_frame_info_update(); ieee802154_transmit_done(s_tx_frame, (uint8_t *)&s_rx_frame[s_rx_index], &s_rx_frame_info[s_rx_index]); next_operation(); } static IRAM_ATTR void isr_handle_rx_abort(void) { event_end_process(); uint32_t rx_status = ieee802154_ll_get_rx_status(); ieee802154_ll_rx_abort_reason_t rx_abort_reason = ieee802154_ll_get_rx_abort_reason(); switch (rx_abort_reason) { case IEEE802154_RX_ABORT_BY_RX_STOP: case IEEE802154_RX_ABORT_BY_TX_ACK_STOP: case IEEE802154_RX_ABORT_BY_ED_STOP: // do nothing break; case IEEE802154_RX_ABORT_BY_SFD_TIMEOUT: case IEEE802154_RX_ABORT_BY_CRC_ERROR: case IEEE802154_RX_ABORT_BY_INVALID_LEN: case IEEE802154_RX_ABORT_BY_FILTER_FAIL: case IEEE802154_RX_ABORT_BY_NO_RSS: case IEEE802154_RX_ABORT_BY_UNEXPECTED_ACK: case IEEE802154_RX_ABORT_BY_RX_RESTART: IEEE802154_ASSERT(s_ieee802154_state == IEEE802154_STATE_RX); #if CONFIG_IEEE802154_TEST esp_ieee802154_receive_failed(rx_status); #endif break; case IEEE802154_RX_ABORT_BY_COEX_BREAK: IEEE802154_ASSERT(s_ieee802154_state == IEEE802154_STATE_RX); #if CONFIG_IEEE802154_TEST esp_ieee802154_receive_failed(rx_status); #endif break; case IEEE802154_RX_ABORT_BY_ED_ABORT: case IEEE802154_RX_ABORT_BY_ED_COEX_REJECT: IEEE802154_ASSERT(s_ieee802154_state == IEEE802154_STATE_ED || s_ieee802154_state == IEEE802154_STATE_CCA); esp_ieee802154_ed_failed(rx_status); break; case IEEE802154_RX_ABORT_BY_TX_ACK_TIMEOUT: case IEEE802154_RX_ABORT_BY_TX_ACK_COEX_BREAK: IEEE802154_ASSERT(s_ieee802154_state == IEEE802154_STATE_TX_ACK || s_ieee802154_state == IEEE802154_STATE_TX_ENH_ACK); #if !CONFIG_IEEE802154_TEST ieee802154_receive_done((uint8_t *)s_rx_frame[s_rx_index], &s_rx_frame_info[s_rx_index]); #else esp_ieee802154_receive_failed(rx_status); #endif break; case IEEE802154_RX_ABORT_BY_ENHACK_SECURITY_ERROR: IEEE802154_ASSERT(s_ieee802154_state == IEEE802154_STATE_TX_ENH_ACK); #if !CONFIG_IEEE802154_TEST ieee802154_receive_done((uint8_t *)s_rx_frame[s_rx_index], &s_rx_frame_info[s_rx_index]); #else esp_ieee802154_receive_failed(rx_status); #endif break; default: IEEE802154_ASSERT(false); } next_operation(); } static IRAM_ATTR void isr_handle_tx_abort(void) { event_end_process(); ieee802154_ll_tx_abort_reason_t tx_abort_reason = ieee802154_ll_get_tx_abort_reason(); switch (tx_abort_reason) { case IEEE802154_TX_ABORT_BY_RX_ACK_STOP: case IEEE802154_TX_ABORT_BY_TX_STOP: // do nothing break; case IEEE802154_TX_ABORT_BY_RX_ACK_SFD_TIMEOUT: case IEEE802154_TX_ABORT_BY_RX_ACK_CRC_ERROR: case IEEE802154_TX_ABORT_BY_RX_ACK_INVALID_LEN: case IEEE802154_TX_ABORT_BY_RX_ACK_FILTER_FAIL: case IEEE802154_TX_ABORT_BY_RX_ACK_NO_RSS: case IEEE802154_TX_ABORT_BY_RX_ACK_COEX_BREAK: case IEEE802154_TX_ABORT_BY_RX_ACK_TYPE_NOT_ACK: case IEEE802154_TX_ABORT_BY_RX_ACK_RESTART: IEEE802154_ASSERT(s_ieee802154_state == IEEE802154_STATE_RX_ACK); esp_ieee802154_transmit_failed(s_tx_frame, ESP_IEEE802154_TX_ERR_INVALID_ACK); break; case IEEE802154_TX_ABORT_BY_RX_ACK_TIMEOUT: IEEE802154_ASSERT(s_ieee802154_state == IEEE802154_STATE_RX_ACK); ieee802154_ll_disable_events(IEEE802154_EVENT_TIMER0_OVERFLOW); esp_ieee802154_transmit_failed(s_tx_frame, ESP_IEEE802154_TX_ERR_NO_ACK); next_operation(); break; case IEEE802154_TX_ABORT_BY_TX_COEX_BREAK: #if CONFIG_ESP_COEX_SW_COEXIST_ENABLE || CONFIG_EXTERNAL_COEX_ENABLE esp_coex_ieee802154_coex_break_notify(); #endif IEEE802154_ASSERT(s_ieee802154_state == IEEE802154_STATE_TX || s_ieee802154_state == IEEE802154_STATE_TX_CCA); IEEE802154_TX_BREAK_COEX_NUMS_UPDATE(); esp_ieee802154_transmit_failed(s_tx_frame, ESP_IEEE802154_TX_ERR_COEXIST); next_operation(); break; case IEEE802154_TX_ABORT_BY_TX_SECURITY_ERROR: IEEE802154_ASSERT(s_ieee802154_state == IEEE802154_STATE_TX || s_ieee802154_state == IEEE802154_STATE_TX_CCA); esp_ieee802154_transmit_failed(s_tx_frame, ESP_IEEE802154_TX_ERR_SECURITY); next_operation(); break; case IEEE802154_TX_ABORT_BY_CCA_FAILED: IEEE802154_ASSERT(s_ieee802154_state == IEEE802154_STATE_TX_CCA); esp_ieee802154_transmit_failed(s_tx_frame, ESP_IEEE802154_TX_ERR_ABORT); next_operation(); break; case IEEE802154_TX_ABORT_BY_CCA_BUSY: IEEE802154_ASSERT(s_ieee802154_state == IEEE802154_STATE_TX_CCA); esp_ieee802154_transmit_failed(s_tx_frame, ESP_IEEE802154_TX_ERR_CCA_BUSY); next_operation(); break; default: IEEE802154_ASSERT(false); break; } } static IRAM_ATTR void isr_handle_ed_done(void) { if (s_ieee802154_state == IEEE802154_STATE_CCA) { esp_ieee802154_cca_done(ieee802154_ll_is_cca_busy()); } else if (s_ieee802154_state == IEEE802154_STATE_ED) { esp_ieee802154_energy_detect_done(ieee802154_ll_get_ed_rss()); } next_operation(); } static void ieee802154_isr(void *arg) { ieee802154_ll_events events = ieee802154_ll_get_events(); IEEE802154_PROBE(events); ieee802154_ll_clear_events(events); if (events & IEEE802154_EVENT_RX_SFD_DONE) { // IEEE802154_STATE_TX && IEEE802154_STATE_TX_CCA && IEEE802154_STATE_TX_ENH_ACK for isr processing delay IEEE802154_ASSERT(s_ieee802154_state == IEEE802154_STATE_RX || s_ieee802154_state == IEEE802154_STATE_RX_ACK || s_ieee802154_state == IEEE802154_STATE_TX || s_ieee802154_state == IEEE802154_STATE_TX_CCA || s_ieee802154_state == IEEE802154_STATE_TX_ENH_ACK); s_rx_frame_info[s_rx_index].timestamp = esp_timer_get_time(); esp_ieee802154_receive_sfd_done(); events &= (uint16_t)(~IEEE802154_EVENT_RX_SFD_DONE); } if (events & IEEE802154_EVENT_TX_SFD_DONE) { // ZB-81: IEEE802154_STATE_TX_ACK is also a possible state IEEE802154_ASSERT(s_ieee802154_state == IEEE802154_STATE_TX || s_ieee802154_state == IEEE802154_STATE_TX_CCA || s_ieee802154_state == IEEE802154_STATE_TEST_TX || s_ieee802154_state == IEEE802154_STATE_TX_ENH_ACK || s_ieee802154_state == IEEE802154_STATE_TX_ACK); esp_ieee802154_transmit_sfd_done(s_tx_frame); events &= (uint16_t)(~IEEE802154_EVENT_TX_SFD_DONE); } if (events & IEEE802154_EVENT_TX_DONE) { IEEE802154_ASSERT(s_ieee802154_state == IEEE802154_STATE_TX || s_ieee802154_state == IEEE802154_STATE_TX_CCA || s_ieee802154_state == IEEE802154_STATE_TEST_TX || s_ieee802154_state == IEEE802154_STATE_TX_ENH_ACK); isr_handle_tx_done(); events &= (uint16_t)(~IEEE802154_EVENT_TX_DONE); } if (events & IEEE802154_EVENT_RX_DONE) { IEEE802154_ASSERT(s_ieee802154_state == IEEE802154_STATE_RX); isr_handle_rx_done(); events &= (uint16_t)(~IEEE802154_EVENT_RX_DONE); } if (events & IEEE802154_EVENT_ACK_TX_DONE) { // IEEE802154_STATE_RX for isr processing delay IEEE802154_ASSERT(s_ieee802154_state == IEEE802154_STATE_TX_ACK || s_ieee802154_state == IEEE802154_STATE_RX || s_ieee802154_state == IEEE802154_STATE_TX_ENH_ACK); isr_handle_ack_tx_done(); events &= (uint16_t)(~IEEE802154_EVENT_ACK_TX_DONE); } if (events & IEEE802154_EVENT_ACK_RX_DONE) { // IEEE802154_STATE_TX && IEEE802154_STATE_TX_CCA && IEEE802154_STATE_TX_ENH_ACK for isr processing delay IEEE802154_ASSERT(s_ieee802154_state == IEEE802154_STATE_RX_ACK || s_ieee802154_state == IEEE802154_STATE_TX || s_ieee802154_state == IEEE802154_STATE_TX_CCA || s_ieee802154_state == IEEE802154_STATE_TX_ENH_ACK); isr_handle_ack_rx_done(); events &= (uint16_t)(~IEEE802154_EVENT_ACK_RX_DONE); } if (events & IEEE802154_EVENT_RX_ABORT) { isr_handle_rx_abort(); events &= (uint16_t)(~IEEE802154_EVENT_RX_ABORT); } if (events & IEEE802154_EVENT_TX_ABORT) { isr_handle_tx_abort(); events &= (uint16_t)(~IEEE802154_EVENT_TX_ABORT); } if (events & IEEE802154_EVENT_ED_DONE) { IEEE802154_ASSERT(s_ieee802154_state == IEEE802154_STATE_ED || s_ieee802154_state == IEEE802154_STATE_CCA); isr_handle_ed_done(); events &= (uint16_t)(~IEEE802154_EVENT_ED_DONE); } if (events & IEEE802154_EVENT_TIMER0_OVERFLOW) { #if !CONFIG_IEEE802154_TEST IEEE802154_ASSERT(s_ieee802154_state == IEEE802154_STATE_RX_ACK); #else extern bool ieee802154_timer0_test; IEEE802154_ASSERT(ieee802154_timer0_test || s_ieee802154_state == IEEE802154_STATE_RX_ACK); #endif isr_handle_timer0_done(); events &= (uint16_t)(~IEEE802154_EVENT_TIMER0_OVERFLOW); } if (events & IEEE802154_EVENT_TIMER1_OVERFLOW) { isr_handle_timer1_done(); events &= (uint16_t)(~IEEE802154_EVENT_TIMER1_OVERFLOW); } // all events should be handled IEEE802154_ASSERT(events == 0); } IEEE802154_STATIC IRAM_ATTR void ieee802154_enter_critical(void) { portENTER_CRITICAL(&s_ieee802154_spinlock); } IEEE802154_STATIC IRAM_ATTR void ieee802154_exit_critical(void) { portEXIT_CRITICAL(&s_ieee802154_spinlock); } void ieee802154_enable(void) { modem_clock_module_enable(ieee802154_periph.module); s_ieee802154_state = IEEE802154_STATE_IDLE; } void ieee802154_disable(void) { modem_clock_module_disable(ieee802154_periph.module); ieee802154_set_state(IEEE802154_STATE_DISABLE); } esp_err_t ieee802154_mac_init(void) { esp_err_t ret = ESP_OK; modem_clock_module_mac_reset(PERIPH_IEEE802154_MODULE); // reset ieee802154 MAC ieee802154_pib_init(); IEEE802154_TXRX_STATISTIC_CLEAR(); ieee802154_ll_enable_events(IEEE802154_EVENT_MASK); #if !CONFIG_IEEE802154_TEST ieee802154_ll_disable_events((IEEE802154_EVENT_TIMER0_OVERFLOW) | (IEEE802154_EVENT_TIMER1_OVERFLOW)); #endif ieee802154_ll_enable_tx_abort_events(BIT(IEEE802154_TX_ABORT_BY_RX_ACK_TIMEOUT - 1) | BIT(IEEE802154_TX_ABORT_BY_TX_COEX_BREAK - 1) | BIT(IEEE802154_TX_ABORT_BY_TX_SECURITY_ERROR - 1) | BIT(IEEE802154_TX_ABORT_BY_CCA_FAILED - 1) | BIT(IEEE802154_TX_ABORT_BY_CCA_BUSY - 1)); ieee802154_ll_enable_rx_abort_events(BIT(IEEE802154_RX_ABORT_BY_TX_ACK_TIMEOUT - 1) | BIT(IEEE802154_RX_ABORT_BY_TX_ACK_COEX_BREAK - 1)); ieee802154_ll_set_ed_sample_mode(IEEE802154_ED_SAMPLE_AVG); #if !CONFIG_IEEE802154_TEST && CONFIG_ESP_COEX_SW_COEXIST_ENABLE || CONFIG_EXTERNAL_COEX_ENABLE esp_coex_ieee802154_ack_pti_set(IEEE802154_MIDDLE); IEEE802154_SET_TXRX_PTI(IEEE802154_SCENE_IDLE); #else ieee802154_ll_disable_coex(); #endif #if CONFIG_IDF_ENV_FPGA bt_bb_set_zb_tx_on_delay(80); #else bt_bb_set_zb_tx_on_delay(50); REG_WRITE(IEEE802154_RXON_DELAY_REG, 50); #endif memset(s_rx_frame, 0, sizeof(s_rx_frame)); ieee802154_set_state(IEEE802154_STATE_IDLE); // TODO: Add flags for IEEE802154 ISR allocating. TZ-102 ret = esp_intr_alloc(ieee802154_periph.irq_id, 0, ieee802154_isr, NULL, &s_ieee802154_isr_handle); ESP_RETURN_ON_FALSE(ret == ESP_OK, ESP_FAIL, IEEE802154_TAG, "IEEE802154 MAC init failed"); ESP_RETURN_ON_FALSE(ieee802154_sleep_init() == ESP_OK, ESP_FAIL, IEEE802154_TAG, "IEEE802154 MAC sleep init failed"); return ret; } esp_err_t ieee802154_mac_deinit(void) { esp_err_t ret = ESP_OK; if (s_ieee802154_isr_handle) { ret = esp_intr_free(s_ieee802154_isr_handle); s_ieee802154_isr_handle = NULL; } ret = ieee802154_sleep_deinit(); return ret; } IEEE802154_STATIC void start_ed(uint32_t duration) { ieee802154_ll_enable_events(IEEE802154_EVENT_ED_DONE); ieee802154_ll_set_ed_duration(duration); ieee802154_set_cmd(IEEE802154_CMD_ED_START); } IEEE802154_STATIC void tx_init(const uint8_t *frame) { IEEE802154_TX_NUMS_UPDATE(); s_tx_frame = (uint8_t *)frame; stop_current_operation(); ieee802154_pib_update(); ieee802154_sec_update(); ieee802154_ll_set_tx_addr(s_tx_frame); if (ieee802154_frame_is_ack_required(frame)) { // set rx pointer for ack frame set_next_rx_buffer(); } } static inline esp_err_t ieee802154_transmit_internal(const uint8_t *frame, bool cca) { IEEE802154_RF_ENABLE(); ieee802154_enter_critical(); tx_init(frame); IEEE802154_SET_TXRX_PTI(IEEE802154_SCENE_TX); if (cca) { ieee802154_set_cmd(IEEE802154_CMD_CCA_TX_START); ieee802154_set_state(IEEE802154_STATE_TX_CCA); } else { ieee802154_set_cmd(IEEE802154_CMD_TX_START); ieee802154_set_state(IEEE802154_STATE_TX); } ieee802154_exit_critical(); return ESP_OK; } esp_err_t ieee802154_transmit(const uint8_t *frame, bool cca) { #if !CONFIG_IEEE802154_TEST ieee802154_enter_critical(); if ((s_ieee802154_state == IEEE802154_STATE_RX && ieee802154_ll_is_current_rx_frame()) || s_ieee802154_state == IEEE802154_STATE_TX_ACK || s_ieee802154_state == IEEE802154_STATE_TX_ENH_ACK) { // If the current radio is processing an RX frame or sending an ACK, do not shut down the ongoing process. // Instead, defer the transmission of the pending TX frame. // Once the current process is completed, the pending transmit frame will be initiated. s_pending_tx.frame = frame; s_pending_tx.cca = cca; IEEE802154_TX_DEFERRED_NUMS_UPDATE(); // Here we enable all rx interrupts due to the driver needs to know when the current RX has finished. // Will recover the setting of rx abort in function `next_operation`. ieee802154_ll_enable_rx_abort_events(IEEE802154_RX_ABORT_ALL); ieee802154_exit_critical(); return ESP_OK; } ieee802154_exit_critical(); #endif return ieee802154_transmit_internal(frame, cca); } static inline bool is_target_time_expired(uint32_t target, uint32_t now) { return (((now - target) & (1 << 31)) == 0); } esp_err_t ieee802154_transmit_at(const uint8_t *frame, bool cca, uint32_t time) { uint32_t tx_target_time; uint32_t current_time; IEEE802154_RF_ENABLE(); tx_init(frame); IEEE802154_SET_TXRX_PTI(IEEE802154_SCENE_TX_AT); if (cca) { tx_target_time = time - IEEE802154_ED_TRIG_TX_RAMPUP_TIME_US; ieee802154_set_state(IEEE802154_STATE_TX_CCA); ieee802154_enter_critical(); ieee802154_etm_set_event_task(IEEE802154_ETM_CHANNEL0, ETM_EVENT_TIMER0_OVERFLOW, ETM_TASK_ED_TRIG_TX); current_time = (uint32_t)esp_timer_get_time(); ieee802154_timer0_set_threshold((is_target_time_expired(tx_target_time, current_time) ? 0 : (tx_target_time - current_time))); //uint: 1us ieee802154_timer0_start(); ieee802154_exit_critical(); } else { tx_target_time = time - IEEE802154_TX_RAMPUP_TIME_US; if (ieee802154_frame_get_type(frame) == IEEE802154_FRAME_TYPE_ACK && ieee802154_frame_get_version(frame) == IEEE802154_FRAME_VERSION_2) { ieee802154_set_state(IEEE802154_STATE_TX_ENH_ACK); } else { ieee802154_set_state(IEEE802154_STATE_TX); } ieee802154_enter_critical(); ieee802154_etm_set_event_task(IEEE802154_ETM_CHANNEL0, ETM_EVENT_TIMER0_OVERFLOW, ETM_TASK_TX_START); current_time = (uint32_t)esp_timer_get_time(); ieee802154_timer0_set_threshold((is_target_time_expired(tx_target_time, current_time) ? 0 : (tx_target_time - current_time))); //uint: 1us ieee802154_timer0_start(); ieee802154_exit_critical(); } return ESP_OK; } IEEE802154_STATIC void rx_init(void) { stop_current_operation(); ieee802154_pib_update(); } esp_err_t ieee802154_receive(void) { if (((s_ieee802154_state == IEEE802154_STATE_RX) || (s_ieee802154_state == IEEE802154_STATE_TX_ACK)) && (!ieee802154_pib_is_pending())) { // already in rx state, don't abort current rx operation return ESP_OK; } IEEE802154_RF_ENABLE(); ieee802154_enter_critical(); rx_init(); enable_rx(); ieee802154_exit_critical(); return ESP_OK; } esp_err_t ieee802154_receive_at(uint32_t time) { uint32_t rx_target_time = time - IEEE802154_RX_RAMPUP_TIME_US; uint32_t current_time; IEEE802154_RF_ENABLE(); rx_init(); IEEE802154_SET_TXRX_PTI(IEEE802154_SCENE_RX_AT); set_next_rx_buffer(); ieee802154_set_state(IEEE802154_STATE_RX); ieee802154_enter_critical(); ieee802154_etm_set_event_task(IEEE802154_ETM_CHANNEL1, ETM_EVENT_TIMER0_OVERFLOW, ETM_TASK_RX_START); current_time = (uint32_t)esp_timer_get_time(); ieee802154_timer0_set_threshold((is_target_time_expired(rx_target_time, current_time) ? 0 : (rx_target_time - current_time))); //uint: 1us ieee802154_timer0_start(); ieee802154_exit_critical(); return ESP_OK; } #if SOC_PM_MODEM_RETENTION_BY_REGDMA && CONFIG_FREERTOS_USE_TICKLESS_IDLE static esp_err_t ieee802154_sleep_retention_init(void *arg) { #define N_REGS_IEEE802154() (((IEEE802154_MAC_DATE_REG - IEEE802154_REG_BASE) / 4) + 1) const static sleep_retention_entries_config_t ieee802154_mac_regs_retention[] = { [0] = { .config = REGDMA_LINK_CONTINUOUS_INIT(REGDMA_MODEM_IEEE802154_LINK(0x00), IEEE802154_REG_BASE, IEEE802154_REG_BASE, N_REGS_IEEE802154(), 0, 0), .owner = IEEE802154_LINK_OWNER }, }; esp_err_t err = sleep_retention_entries_create(ieee802154_mac_regs_retention, ARRAY_SIZE(ieee802154_mac_regs_retention), REGDMA_LINK_PRI_IEEE802154, SLEEP_RETENTION_MODULE_802154_MAC); ESP_RETURN_ON_ERROR(err, IEEE802154_TAG, "failed to allocate memory for ieee802154 mac retention"); ESP_LOGD(IEEE802154_TAG, "ieee802154 mac sleep retention initialization"); return err; } #endif static esp_err_t ieee802154_sleep_init(void) { esp_err_t err = ESP_OK; #if SOC_PM_MODEM_RETENTION_BY_REGDMA && CONFIG_FREERTOS_USE_TICKLESS_IDLE sleep_retention_module_init_param_t init_param = { .cbs = { .create = { .handle = ieee802154_sleep_retention_init, .arg = NULL } }, .depends = BIT(SLEEP_RETENTION_MODULE_BT_BB) | BIT(SLEEP_RETENTION_MODULE_CLOCK_MODEM) }; err = sleep_retention_module_init(SLEEP_RETENTION_MODULE_802154_MAC, &init_param); if (err == ESP_OK) { err = sleep_retention_module_allocate(SLEEP_RETENTION_MODULE_802154_MAC); } ESP_RETURN_ON_ERROR(err, IEEE802154_TAG, "failed to create sleep retention linked list for ieee802154 mac retention"); #if SOC_PM_RETENTION_HAS_CLOCK_BUG && CONFIG_MAC_BB_PD sleep_modem_register_mac_bb_module_prepare_callback(sleep_modem_mac_bb_power_down_prepare, sleep_modem_mac_bb_power_up_prepare); #endif // SOC_PM_RETENTION_HAS_CLOCK_BUG && CONFIG_MAC_BB_PD #endif // SOC_PM_MODEM_RETENTION_BY_REGDMA && CONFIG_FREERTOS_USE_TICKLESS_IDLE return err; } static esp_err_t ieee802154_sleep_deinit(void) { esp_err_t err = ESP_OK; #if SOC_PM_MODEM_RETENTION_BY_REGDMA && CONFIG_FREERTOS_USE_TICKLESS_IDLE err = sleep_retention_module_free(SLEEP_RETENTION_MODULE_802154_MAC); if (err == ESP_OK) { err = sleep_retention_module_deinit(SLEEP_RETENTION_MODULE_802154_MAC); } #if SOC_PM_RETENTION_HAS_CLOCK_BUG && CONFIG_MAC_BB_PD sleep_modem_unregister_mac_bb_module_prepare_callback(sleep_modem_mac_bb_power_down_prepare, sleep_modem_mac_bb_power_up_prepare); #endif // SOC_PM_RETENTION_HAS_CLOCK_BUG && CONFIG_MAC_BB_PD #endif // SOC_PM_MODEM_RETENTION_BY_REGDMA && CONFIG_FREERTOS_USE_TICKLESS_IDLE return err; } IRAM_ATTR void ieee802154_rf_disable(void) { if (s_rf_closed == false) { esp_phy_disable(PHY_MODEM_IEEE802154); s_rf_closed = true; } } IRAM_ATTR void ieee802154_rf_enable(void) { if (s_rf_closed) { esp_phy_enable(PHY_MODEM_IEEE802154); s_rf_closed = false; } } esp_err_t ieee802154_sleep(void) { if (ieee802154_get_state() != IEEE802154_STATE_SLEEP) { ieee802154_enter_critical(); stop_current_operation(); ieee802154_set_state(IEEE802154_STATE_SLEEP); ieee802154_exit_critical(); IEEE802154_RF_DISABLE(); } return ESP_OK; } esp_err_t ieee802154_energy_detect(uint32_t duration) { IEEE802154_RF_ENABLE(); ieee802154_enter_critical(); stop_current_operation(); ieee802154_pib_update(); start_ed(duration); ieee802154_set_state(IEEE802154_STATE_ED); ieee802154_exit_critical(); return ESP_OK; } esp_err_t ieee802154_cca(void) { IEEE802154_RF_ENABLE(); ieee802154_enter_critical(); stop_current_operation(); ieee802154_pib_update(); start_ed(CCA_DETECTION_TIME); ieee802154_set_state(IEEE802154_STATE_CCA); ieee802154_exit_critical(); return ESP_OK; } ieee802154_state_t ieee802154_get_state(void) { return s_ieee802154_state; }