feat(ble): support esp ble controller spi output interface for ESP32-C2

Author: Zhou Xiao

components/bt/controller/esp32c2/Kconfig.in

@@ -308,6 +308,49 @@ config BT_LE_CONTROLLER_LOG_DUMP_ONLY
     help
             Only operate in dump mode
 
+config BT_LE_CONTROLLER_LOG_SPI_OUT_ENABLED
+    bool "Output ble controller logs to SPI bus (Experimental)"
+    depends on BT_LE_CONTROLLER_LOG_ENABLED
+    depends on !BT_LE_CONTROLLER_LOG_DUMP_ONLY
+    default n
+    help
+        Output ble controller logs to SPI bus
+
+config BT_LE_CONTROLLER_LOG_SPI_OUT_QUEUE_SIZE
+    int "Number of ble controller log async SPI output queues"
+    depends on BT_LE_CONTROLLER_LOG_SPI_OUT_ENABLED
+    default 4
+    help
+            The number of ble controller log async SPI output queues
+
+config BT_LE_CONTROLLER_LOG_SPI_OUT_TRANS_BUF_SIZE
+    int "Size of ble controller log async SPI output transaction buffer size"
+    depends on BT_LE_CONTROLLER_LOG_SPI_OUT_ENABLED
+    default 512
+    help
+            The size of ble controller log async SPI output transaction buffer size
+
+config BT_LE_CONTROLLER_LOG_SPI_OUT_MOSI_IO_NUM
+    int "GPIO number of SPI MOSI"
+    depends on BT_LE_CONTROLLER_LOG_SPI_OUT_ENABLED
+    default 1
+    help
+            GPIO number of SPI MOSI
+
+config BT_LE_CONTROLLER_LOG_SPI_OUT_SCLK_IO_NUM
+    int "GPIO number of SPI SCLK"
+    depends on BT_LE_CONTROLLER_LOG_SPI_OUT_ENABLED
+    default 6
+    help
+            GPIO number of SPI SCLK
+
+config BT_LE_CONTROLLER_LOG_SPI_OUT_CS_IO_NUM
+    int "GPIO number of SPI CS"
+    depends on BT_LE_CONTROLLER_LOG_SPI_OUT_ENABLED
+    default 7
+    help
+            GPIO number of SPI CS
+
 config BT_LE_CONTROLLER_LOG_STORAGE_ENABLE
     bool "Store ble controller logs to flash(Experimental)"
     depends on !BT_LE_CONTROLLER_LOG_DUMP_ONLY

components/bt/controller/esp32c2/bt.c

@@ -64,6 +64,12 @@
 #include "hal/efuse_ll.h"
 #include "soc/rtc.h"
 
+#if CONFIG_BT_LE_CONTROLLER_LOG_ENABLED
+#if CONFIG_BT_LE_CONTROLLER_LOG_SPI_OUT_ENABLED
+#include "ble_log/ble_log_spi_out.h"
+#endif // CONFIG_BT_LE_CONTROLLER_LOG_SPI_OUT_ENABLED
+#endif // CONFIG_BT_LE_CONTROLLER_LOG_ENABLED
+
 /* Macro definition
  ************************************************************************
  */
@@ -210,6 +216,7 @@ enum log_out_mode {
     LOG_DUMP_MEMORY,
     LOG_ASYNC_OUT,
     LOG_STORAGE_TO_FLASH,
+    LOG_SPI_OUT,
 };
 
 bool log_is_inited = false;
@@ -218,6 +225,8 @@ uint8_t log_output_mode = LOG_DUMP_MEMORY;
 #else
 #if CONFIG_BT_LE_CONTROLLER_LOG_STORAGE_ENABLE
 uint8_t log_output_mode = LOG_STORAGE_TO_FLASH;
+#elif CONFIG_BT_LE_CONTROLLER_LOG_SPI_OUT_ENABLED
+uint8_t log_output_mode = LOG_SPI_OUT;
 #else
 uint8_t log_output_mode = LOG_ASYNC_OUT;
 #endif // CONFIG_BT_LE_CONTROLLER_LOG_STORAGE_ENABLE
@@ -265,6 +274,13 @@ esp_err_t esp_bt_controller_log_init(uint8_t log_output_mode)
             }
 #endif // CONFIG_BT_LE_CONTROLLER_LOG_STORAGE_ENABLE
             break;
+        case LOG_SPI_OUT:
+            task_create = true;
+#if CONFIG_BT_LE_CONTROLLER_LOG_SPI_OUT_ENABLED
+            ble_log_spi_out_init();
+            bt_controller_log_interface = ble_log_spi_out_write_esp;
+#endif // CONFIG_BT_LE_CONTROLLER_LOG_SPI_OUT_ENABLED
+            break;
         default:
             assert(0);
     }
@@ -280,6 +296,9 @@ esp_err_t esp_bt_controller_log_init(uint8_t log_output_mode)
 void esp_bt_ontroller_log_deinit(void)
 {
     ble_log_deinit_async();
+#if CONFIG_BT_LE_CONTROLLER_LOG_SPI_OUT_ENABLED
+    ble_log_spi_out_deinit();
+#endif
     log_is_inited = false;
 }