monitor: Add support for decoding LE Channel Selection Algorithm Event

> HCI Event: LE Meta Event (0x3e) plen 4                     44.589780
      LE Channel Selection Algorithm (0x14)
        Handle: 1
        LE Channel Selection Algorithm #2 (0x01)

diff --git a/monitor/bt.h b/monitor/bt.h
index 1a21592..0b77a10 100644 (file)
--- a/monitor/bt.h
+++ b/monitor/bt.h
@@ -2736,6 +2736,12 @@ struct bt_hci_evt_le_direct_adv_report {
        int8_t   rssi;
 } __attribute__ ((packed));
 
+#define BT_HCI_EVT_LE_CHAN_SELECT_ALG          0x14
+struct bt_hci_evt_le_chan_select_alg {
+       uint16_t handle;
+       uint8_t  algorithm;
+} __attribute__ ((packed));
+
 #define BT_HCI_ERR_SUCCESS                     0x00
 #define BT_HCI_ERR_UNKNOWN_COMMAND             0x01
 #define BT_HCI_ERR_UNKNOWN_CONN_ID             0x02

diff --git a/monitor/packet.c b/monitor/packet.c
index 0cae6d7..5d927f5 100644 (file)
--- a/monitor/packet.c
+++ b/monitor/packet.c
@@ -3754,6 +3754,25 @@ static void print_3d_broadcast(const void *data, uint8_t size)
                                                period, period_frac);
 }
 
+static void print_le_channel_select_alg(uint8_t alg)
+{
+       const char *str;
+
+       switch (alg) {
+       case 0x00:
+               str = "LE Channel Selection Algorithm #1";
+               break;
+       case 0x01:
+               str = "LE Channel Selection Algorithm #2";
+               break;
+       default:
+               str = "Reserved";
+               break;
+       }
+
+       print_field("%s (0x%2.2x)", str, alg);
+}
+
 void packet_hexdump(const unsigned char *buf, uint16_t len)
 {
        static const char hexdigits[] = "0123456789abcdef";
@@ -8531,6 +8550,14 @@ static void le_direct_adv_report_evt(const void *data, uint8_t size)
                packet_hexdump(data + sizeof(*evt), size - sizeof(*evt));
 }
 
+static void le_chan_select_alg_evt(const void *data, uint8_t size)
+{
+       const struct bt_hci_evt_le_chan_select_alg *evt = data;
+
+       print_handle(evt->handle);
+       print_le_channel_select_alg(evt->algorithm);
+}
+
 struct subevent_data {
        uint8_t subevent;
        const char *str;
@@ -8605,7 +8632,8 @@ static const struct subevent_data le_meta_event_table[] = {
        { 0x11, "LE Scan Timeout" },
        { 0x12, "LE Advertising Set Terminated" },
        { 0x13, "LE Scan Request Received" },
-       { 0x14, "LE Channel Selection Algorithm" },
+       { 0x14, "LE Channel Selection Algorithm",
+                               le_chan_select_alg_evt, 3, true},
        { }
 };