espradio: implement support for wifi/BLE on the ESP32-C3

This is a work in progress. It does not yet work.

espradio/blobs/headers/esp_coexist_adapter.h

@@ -0,0 +1,64 @@
+/*
+ * SPDX-FileCopyrightText: 2019-2023 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef __ESP_COEXIST_ADAPTER_H__
+#define __ESP_COEXIST_ADAPTER_H__
+
+#include <stdarg.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define COEX_ADAPTER_VERSION  0x00000002
+#define COEX_ADAPTER_MAGIC    0xDEADBEAF
+
+#define COEX_ADAPTER_FUNCS_TIME_BLOCKING      0xffffffff
+
+typedef struct {
+    int32_t _version;
+#if CONFIG_IDF_TARGET_ESP32
+    void *(* _spin_lock_create)(void);
+    void (* _spin_lock_delete)(void *lock);
+    uint32_t (*_int_disable)(void *mux);
+    void (*_int_enable)(void *mux, uint32_t tmp);
+#endif
+    void (*_task_yield_from_isr)(void);
+    void *(*_semphr_create)(uint32_t max, uint32_t init);
+    void (*_semphr_delete)(void *semphr);
+    int32_t (*_semphr_take_from_isr)(void *semphr, void *hptw);
+    int32_t (*_semphr_give_from_isr)(void *semphr, void *hptw);
+    int32_t (*_semphr_take)(void *semphr, uint32_t block_time_tick);
+    int32_t (*_semphr_give)(void *semphr);
+    int (* _is_in_isr)(void);
+    void * (* _malloc_internal)(size_t size);
+    void (* _free)(void *p);
+    int64_t (* _esp_timer_get_time)(void);
+    bool (* _env_is_chip)(void);
+#if CONFIG_IDF_TARGET_ESP32C2
+    // this function is only used on esp32c2
+    uint32_t (* _slowclk_cal_get)(void);
+#endif
+    void (* _timer_disarm)(void *timer);
+    void (* _timer_done)(void *ptimer);
+    void (* _timer_setfn)(void *ptimer, void *pfunction, void *parg);
+    void (* _timer_arm_us)(void *ptimer, uint32_t us, bool repeat);
+    int32_t _magic;
+} coex_adapter_funcs_t;
+
+extern coex_adapter_funcs_t g_coex_adapter_funcs;
+
+typedef struct {
+    uint8_t major;
+    uint8_t minor;
+    uint8_t patch;
+} coex_version_t;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __ESP_COEXIST_ADAPTER_H__ */