nimble/startup: Read local HCI version on startup

X-Original-Commit: 3dd9d11c8ab9638503ede80cdd08ed4296d91e46

nimble/host/src/ble_hs_hci.c

@@ -37,6 +37,7 @@ static uint8_t *ble_hs_hci_ack;
 static uint16_t ble_hs_hci_buf_sz;
 static uint8_t ble_hs_hci_max_pkts;
 static uint32_t ble_hs_hci_sup_feat;
+static uint8_t ble_hs_hci_version;
 
 /**
  * The number of available ACL transmit buffers on the controller.  This
@@ -546,6 +547,18 @@ ble_hs_hci_get_le_supported_feat(void)
     return ble_hs_hci_sup_feat;
 }
 
+void
+ble_hs_hci_set_hci_version(uint8_t hci_version)
+{
+    ble_hs_hci_version = hci_version;
+}
+
+uint8_t
+ble_hs_hci_get_hci_version(void)
+{
+    return ble_hs_hci_version;
+}
+
 void
 ble_hs_hci_init(void)
 {

nimble/host/src/ble_hs_hci_priv.h

@@ -80,6 +80,8 @@ void ble_hs_hci_init(void);
 
 void ble_hs_hci_set_le_supported_feat(uint32_t feat);
 uint32_t ble_hs_hci_get_le_supported_feat(void);
+void ble_hs_hci_set_hci_version(uint8_t hci_version);
+uint8_t ble_hs_hci_get_hci_version(void);
 
 #if MYNEWT_VAL(BLE_HS_PHONY_HCI_ACKS)
 typedef int ble_hs_hci_phony_ack_fn(uint8_t *ack, int ack_buf_len);

nimble/host/src/ble_hs_startup.c

@@ -23,6 +23,33 @@
 #include "host/ble_hs_hci.h"
 #include "ble_hs_priv.h"
 
+static int
+ble_hs_startup_le_read_local_ver_tx(void)
+{
+    uint8_t ack_params[BLE_HCI_RD_LOC_VER_INFO_RSPLEN];
+    uint8_t ack_params_len;
+    uint8_t hci_version;
+    int rc;
+
+    rc = ble_hs_hci_cmd_tx(BLE_HCI_OP(BLE_HCI_OGF_INFO_PARAMS,
+                                      BLE_HCI_OCF_IP_RD_LOCAL_VER),
+                           NULL,0, ack_params, sizeof ack_params,
+                           &ack_params_len);
+    if (rc != 0) {
+        return rc;
+    }
+
+    if (ack_params_len != BLE_HCI_RD_LOC_VER_INFO_RSPLEN) {
+        return BLE_HS_ECONTROLLER;
+    }
+
+    /* For now we are interested only in HCI Version */
+    hci_version = ack_params[0];
+    ble_hs_hci_set_hci_version(hci_version);
+
+    return 0;
+}
+
 static int
 ble_hs_startup_le_read_sup_f_tx(void)
 {
@@ -251,6 +278,11 @@ ble_hs_startup_go(void)
         return rc;
     }
 
+    rc = ble_hs_startup_le_read_local_ver_tx();
+    if (rc != 0) {
+        return rc;
+    }
+
     /* XXX: Read local supported commands. */
     /* XXX: Read local supported features. */