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d/wmr: Implement bluetooth debug message handling

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Handle the debug message packet from the bluetooth
interface on the HP G2. There might be other packet
types, but that's the only one I've seen so far.
This commit is contained in:
Jan Schmidt 2021-11-15 00:06:18 +11:00 committed by Jakob Bornecrantz
parent e0b5070f49
commit 7b95755f07
2 changed files with 31 additions and 2 deletions
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27
src/xrt/drivers/wmr/wmr_hmd.c
View file

@ -78,6 +78,33 @@ hololens_unknown_17_decode_packet(struct wmr_hmd *wh, const unsigned char *buffe
static void
hololens_handle_bt_iface_packet(struct wmr_hmd *wh, const unsigned char *buffer, int size)
{
int pkt_type;
if (size < 2)
return;
if (size < 6) {
WMR_DEBUG(wh, "Short Bluetooth interface packet (%d) type 0x%02x", size, buffer[1]);
return;
}
pkt_type = buffer[1];
if (pkt_type != WMR_BT_IFACE_MSG_DEBUG) {
WMR_DEBUG(wh, "Unknown Bluetooth interface packet (%d) type 0x%02x", size, pkt_type);
return;
}
buffer += 2;
uint16_t tag = read16(&buffer);
uint16_t msg_len = read16(&buffer);
if (size < msg_len + 6) {
WMR_DEBUG(wh, "Bluetooth interface debug packet (%d) too short. tag 0x%x msg len %u", size, tag,
msg_len);
return;
}
WMR_DEBUG(wh, "BT debug: tag %d: %.*s", tag, msg_len, buffer);
}
static void

6
src/xrt/drivers/wmr/wmr_protocol.h
View file

@ -34,8 +34,8 @@ extern "C" {
#define WMR_MS_HOLOLENS_MSG_SENSORS 0x01
#define WMR_MS_HOLOLENS_MSG_CONTROL 0x02 // Integrated motion controller messages?
#define WMR_MS_HOLOLENS_MSG_DEBUG 0x03
#define WMR_MS_HOLOLENS_MSG_BT_IFACE 0x05 /* Bluetooth interface */
#define WMR_MS_HOLOLENS_MSG_LEFT_CONTROLLER 0x06 /* Left controller */
#define WMR_MS_HOLOLENS_MSG_BT_IFACE 0x05 /* Bluetooth interface */
#define WMR_MS_HOLOLENS_MSG_LEFT_CONTROLLER 0x06 /* Left controller */
#define WMR_MS_HOLOLENS_MSG_RIGHT_CONTROLLER 0x0E /* Right controller */
#define WMR_MS_HOLOLENS_MSG_UNKNOWN_17 0x17
@ -43,6 +43,8 @@ extern "C" {
#define WMR_CONTROL_MSG_IPD_VALUE 0x01
#define WMR_CONTROL_MSG_UNKNOWN_05 0x05
#define WMR_BT_IFACE_MSG_DEBUG 0x19
#define STR_TO_U32(s) ((uint32_t)(((s)[0]) | ((s)[1] << 8) | ((s)[2] << 16) | ((s)[3] << 24)))
#define WMR_MAGIC STR_TO_U32("Dlo+")