bluetooth: audio: Add API to get MICP service ATT handles

This is needed for upper tester.

Signed-off-by: Piotr Narajowski <piotr.narajowski@codecoup.pl>

include/zephyr/bluetooth/audio/micp.h

@@ -271,6 +271,36 @@ int bt_micp_mic_ctlr_mute_get(struct bt_micp_mic_ctlr *mic_ctlr);
  * @return 0 if success, errno on failure.
  */
 int bt_micp_mic_ctlr_cb_register(struct bt_micp_mic_ctlr_cb *cb);
+
+/**
+ * @brief Get the start handle and end handle a Microphone Controller instance
+ *
+ * @param mic_ctlr Microphone Controller instance pointer.
+ * @param mute_handle Mute characteristic handle.
+ *
+ * @return 0 if success, errno on failure.
+ */
+int bt_micp_mic_ctlr_chrc_get(const struct bt_micp_mic_ctlr *mic_ctlr, uint16_t *mute_handle);
+
+/**
+ * @brief Get handles of each characteristic of AICS.
+ *
+ * @param micp_included Included Services containing array of pointers to AICS instances.
+ * @param state_handle state handle.
+ * @param gain_handle gain handle.
+ * @param type_handle type handle.
+ * @param status_handle status handle.
+ * @param control_handle control handle.
+ * @param desc_handle desc handle.
+ *
+ * @return 0 if success, errno on failure.
+ */
+int bt_micp_mic_ctlr_aics_chrc_get(const struct bt_micp_included micp_included,
+ uint16_t *state_handle, uint16_t *gain_handle,
+ uint16_t *type_handle,
+ uint16_t *status_handle, uint16_t *control_handle,
+ uint16_t *desc_handle);
+
 #ifdef __cplusplus
 }
 #endif

subsys/bluetooth/audio/micp_mic_ctlr.c

@@ -19,6 +19,7 @@
 #include <zephyr/bluetooth/conn.h>
 #include <zephyr/bluetooth/gatt.h>
 #include <zephyr/bluetooth/audio/micp.h>
+#include <../../subsys/bluetooth/audio/aics_internal.h>
 
 #include <zephyr/logging/log.h>
 
@@ -515,6 +516,47 @@ int bt_micp_mic_ctlr_conn_get(const struct bt_micp_mic_ctlr *mic_ctlr, struct bt
  return 0;
 }
 
+int bt_micp_mic_ctlr_chrc_get(const struct bt_micp_mic_ctlr *mic_ctlr, uint16_t *mute_handle)
+{
+ CHECKIF(mic_ctlr == NULL)
+ {
+ LOG_DBG("NULL mic_ctlr pointer");
+ return -EINVAL;
+ }
+
+ if (mic_ctlr->conn == NULL) {
+ LOG_DBG("mic_ctlr pointer not associated with a connection. "
+ "Do discovery first");
+ return -ENOTCONN;
+ }
+
+ *mute_handle = mic_ctlr->mute_handle;
+
+ return 0;
+}
+
+int bt_micp_mic_ctlr_aics_chrc_get(const struct bt_micp_included micp_included,
+ uint16_t *state_handle, uint16_t *gain_handle,
+ uint16_t *type_handle,
+ uint16_t *status_handle, uint16_t *control_handle,
+ uint16_t *desc_handle)
+{
+ CHECKIF(micp_included.aics == NULL)
+ {
+ LOG_DBG("NULL AICS instance");
+ return -EINVAL;
+ }
+
+ *state_handle = micp_included.aics[0]->cli.state_handle;
+ *gain_handle = micp_included.aics[0]->cli.gain_handle;
+ *type_handle = micp_included.aics[0]->cli.type_handle;
+ *status_handle = micp_included.aics[0]->cli.status_handle;
+ *control_handle = micp_included.aics[0]->cli.control_handle;
+ *desc_handle = micp_included.aics[0]->cli.desc_handle;
+
+ return 0;
+}
+
 int bt_micp_mic_ctlr_mute_get(struct bt_micp_mic_ctlr *mic_ctlr)
 {
  int err;