Generate bindings for IEEE802.15.4 radio on ESP32-C6/H2 (#467)

* Generate bindings for IEEE802.15.4 radio on ESP32-C6/H2

* Fix linker errors when building for ESP32-H2

esp-wifi-sys/build.rs

@@ -59,7 +59,18 @@ fn configure_linker_for_chip(out: &PathBuf, chip: &str) -> Result<()> {
         out,
         &format!("ld/{chip}/rom_functions.x"),
         "rom_functions.x",
-    )
+    )?;
+
+    if chip == "esp32c6" {
+        copy_file(out, "ld/esp32c6/rom_coexist.x", "rom_coexist.x")?;
+        copy_file(out, "ld/esp32c6/rom_phy.x", "rom_phy.x")?;
+    } else if chip == "esp32h2" {
+        // These linker scripts are still expected to exist, even if they're empty:
+        File::create(out.join("rom_coexist.x"))?;
+        File::create(out.join("rom_phy.x"))?;
+    }
+
+    Ok(())
 }
 
 fn copy_file(out: &PathBuf, from: &str, to: &str) -> Result<()> {
@@ -216,6 +227,7 @@ fn copy_libraries(out: &PathBuf) -> Result<()> {
 
     println!("cargo:rustc-link-lib={}", "ble_app");
     println!("cargo:rustc-link-lib={}", "btbb");
+    println!("cargo:rustc-link-lib={}", "coexist");
     println!("cargo:rustc-link-lib={}", "phy");
     println!("cargo:rustc-link-lib={}", "wpa_supplicant");
 

esp-wifi-sys/headers/esp_coex_i154.h

@@ -0,0 +1,22 @@
+/*
+ * SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#ifndef __COEXIST_I154_H__
+#define __COEXIST_I154_H__
+
+#ifdef CONFIG_SOC_IEEE802154_SUPPORTED
+typedef enum {
+    IEEE802154_HIGH = 1,
+    IEEE802154_MIDDLE,
+    IEEE802154_LOW,
+    IEEE802154_IDLE,
+    IEEE802154_EVENT_MAX,
+} ieee802154_coex_event_t;
+
+void esp_coex_ieee802154_txrx_pti_set(ieee802154_coex_event_t event);
+void esp_coex_ieee802154_ack_pti_set(ieee802154_coex_event_t event);
+#endif
+
+#endif

esp-wifi-sys/headers/esp_modem_wrapper.h

@@ -0,0 +1,54 @@
+/*
+ * SPDX-FileCopyrightText: 2018-2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef __ESP_MODEM_WRAPPER_INTERNAL_H__
+#define __ESP_MODEM_WRAPPER_INTERNAL_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <string.h>
+#include <stdint.h>
+#include <stdbool.h>
+
+bool esp_coex_common_env_is_chip_wrapper(void);
+
+void * esp_coex_common_spin_lock_create_wrapper(void);
+
+uint32_t esp_coex_common_int_disable_wrapper(void *wifi_int_mux);
+
+void esp_coex_common_int_restore_wrapper(void *wifi_int_mux, uint32_t tmp);
+
+void esp_coex_common_task_yield_from_isr_wrapper(void);
+
+void * esp_coex_common_semphr_create_wrapper(uint32_t max, uint32_t init);
+
+void esp_coex_common_semphr_delete_wrapper(void *semphr);
+
+int32_t esp_coex_common_semphr_take_wrapper(void *semphr, uint32_t block_time_tick);
+
+int32_t esp_coex_common_semphr_give_wrapper(void *semphr);
+
+void esp_coex_common_timer_disarm_wrapper(void *timer);
+
+void esp_coex_common_timer_done_wrapper(void *ptimer);
+
+void esp_coex_common_timer_setfn_wrapper(void *ptimer, void *pfunction, void *parg);
+
+void esp_coex_common_timer_arm_us_wrapper(void *ptimer, uint32_t us, bool repeat);
+
+void * esp_coex_common_malloc_internal_wrapper(size_t size);
+
+#ifndef CONFIG_IDF_TARGET_ESP32
+uint32_t esp_coex_common_clk_slowclk_cal_get_wrapper(void);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

esp-wifi-sys/include/include.h

@@ -15,4 +15,9 @@ typedef int _lock_t;
 #include "esp_coexist_adapter.h"
 #endif
 
+#if ( defined(CONFIG_IDF_TARGET_ESP32C6) || defined(CONFIG_IDF_TARGET_ESP32H2) )
+#include "esp_coexist.h"
+#include "esp_coex_i154.h"
+#endif
+
 #include "esp_now.h"

esp-wifi-sys/ld/esp32c6/rom_coexist.x

@@ -0,0 +1,47 @@
+/*
+ * SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+/* ROM function interface esp32c6.rom.coexist.ld for esp32c6
+ *
+ *
+ * Generated from ./target/esp32c6/interface-esp32c6.yml md5sum 06c13e133e0743d09b87aba30d3e213b
+ *
+ * Compatible with ROM where ECO version equal or greater to 0.
+ *
+ * THIS FILE WAS AUTOMATICALLY GENERATED. DO NOT EDIT.
+ */
+
+/***************************************
+ Group rom_coexist
+ ***************************************/
+
+/* Functions */
+esp_coex_rom_version_get = 0x40000afc;
+coex_bt_release = 0x40000b00;
+coex_bt_request = 0x40000b04;
+coex_core_ble_conn_dyn_prio_get = 0x40000b08;
+coex_core_event_duration_get = 0x40000b0c;
+coex_core_pti_get = 0x40000b10;
+coex_core_release = 0x40000b14;
+coex_core_request = 0x40000b18;
+coex_core_status_get = 0x40000b1c;
+coex_core_timer_idx_get = 0x40000b20;
+coex_event_duration_get = 0x40000b24;
+coex_hw_timer_disable = 0x40000b28;
+coex_hw_timer_enable = 0x40000b2c;
+coex_hw_timer_set = 0x40000b30;
+coex_schm_interval_set = 0x40000b34;
+coex_schm_lock = 0x40000b38;
+coex_schm_unlock = 0x40000b3c;
+coex_status_get = 0x40000b40;
+coex_wifi_release = 0x40000b44;
+esp_coex_ble_conn_dynamic_prio_get = 0x40000b48;
+/* Data (.data, .bss, .rodata) */
+coex_env_ptr = 0x4087ffc4;
+coex_pti_tab_ptr = 0x4087ffc0;
+coex_schm_env_ptr = 0x4087ffbc;
+coexist_funcs = 0x4087ffb8;
+g_coa_funcs_p = 0x4087ffb4;
+g_coex_param_ptr = 0x4087ffb0;