Add support for large Mouse Reports (#16371)

Co-authored-by: Sergey Vlasov <sigprof@gmail.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

4 files changed, 48 insertions, 6 deletions

diff --git a/tmk_core/protocol/host.c b/tmk_core/protocol/host.c
index 053d2b79e3..3d8604d541 100644
--- a/tmk_core/protocol/host.c
+++ b/tmk_core/protocol/host.c
@@ -94,6 +94,11 @@ void host_mouse_send(report_mouse_t *report) {
 #ifdef MOUSE_SHARED_EP
     report->report_id = REPORT_ID_MOUSE;
 #endif
+#ifdef MOUSE_EXTENDED_REPORT
+    // clip and copy to Boot protocol XY
+    report->boot_x = (report->x > 127) ? 127 : ((report->x < -127) ? -127 : report->x);
+    report->boot_y = (report->y > 127) ? 127 : ((report->y < -127) ? -127 : report->y);
+#endif
     (*driver->send_mouse)(report);
 }
 
diff --git a/tmk_core/protocol/report.h b/tmk_core/protocol/report.h
index 7bbeb78af7..735ccdb4a1 100644
--- a/tmk_core/protocol/report.h
+++ b/tmk_core/protocol/report.h
@@ -201,15 +201,25 @@ typedef struct {
     uint32_t usage;
 } __attribute__((packed)) report_programmable_button_t;
 
+#ifdef MOUSE_EXTENDED_REPORT
+typedef int16_t mouse_xy_report_t;
+#else
+typedef int8_t mouse_xy_report_t;
+#endif
+
 typedef struct {
 #ifdef MOUSE_SHARED_EP
     uint8_t report_id;
 #endif
     uint8_t buttons;
-    int8_t  x;
-    int8_t  y;
-    int8_t  v;
-    int8_t  h;
+#ifdef MOUSE_EXTENDED_REPORT
+    int8_t boot_x;
+    int8_t boot_y;
+#endif
+    mouse_xy_report_t x;
+    mouse_xy_report_t y;
+    int8_t            v;
+    int8_t            h;
 } __attribute__((packed)) report_mouse_t;
 
 typedef struct {
diff --git a/tmk_core/protocol/usb_descriptor.c b/tmk_core/protocol/usb_descriptor.c
index 063bd2c3f1..52e3276d35 100644
--- a/tmk_core/protocol/usb_descriptor.c
+++ b/tmk_core/protocol/usb_descriptor.c
@@ -126,14 +126,27 @@ const USB_Descriptor_HIDReport_Datatype_t PROGMEM SharedReport[] = {
             HID_RI_REPORT_SIZE(8, 0x01),
             HID_RI_INPUT(8, HID_IOF_DATA | HID_IOF_VARIABLE | HID_IOF_ABSOLUTE),
 
-            // X/Y position (2 bytes)
+#    ifdef MOUSE_EXTENDED_REPORT
+            // Boot protocol XY ignored in Report protocol
+            HID_RI_REPORT_COUNT(8, 0x02),
+            HID_RI_REPORT_SIZE(8, 0x08),
+            HID_RI_INPUT(8, HID_IOF_CONSTANT),
+#    endif
+            // X/Y position (2 or 4 bytes)
             HID_RI_USAGE_PAGE(8, 0x01),    // Generic Desktop
             HID_RI_USAGE(8, 0x30),         // X
             HID_RI_USAGE(8, 0x31),         // Y
+#    ifndef MOUSE_EXTENDED_REPORT
             HID_RI_LOGICAL_MINIMUM(8, -127),
             HID_RI_LOGICAL_MAXIMUM(8, 127),
             HID_RI_REPORT_COUNT(8, 0x02),
             HID_RI_REPORT_SIZE(8, 0x08),
+#    else
+            HID_RI_LOGICAL_MINIMUM(16, -32767),
+            HID_RI_LOGICAL_MAXIMUM(16,  32767),
+            HID_RI_REPORT_COUNT(8, 0x02),
+            HID_RI_REPORT_SIZE(8, 0x10),
+#    endif
             HID_RI_INPUT(8, HID_IOF_DATA | HID_IOF_VARIABLE | HID_IOF_RELATIVE),
 
             // Vertical wheel (1 byte)
diff --git a/tmk_core/protocol/vusb/vusb.c b/tmk_core/protocol/vusb/vusb.c
index ebde955d3b..d07cc0d27e 100644
--- a/tmk_core/protocol/vusb/vusb.c
+++ b/tmk_core/protocol/vusb/vusb.c
@@ -482,14 +482,28 @@ const PROGMEM uchar shared_hid_report[] = {
     0x75, 0x01, //     Report Size (1)
     0x81, 0x02, //     Input (Data, Variable, Absolute)
 
-    // X/Y position (2 bytes)
+#    ifdef MOUSE_EXTENDED_REPORT
+    // Boot protocol XY ignored in Report protocol
+    0x95, 0x02, //     Report Count (2)
+    0x75, 0x08, //     Report Size (8)
+    0x81, 0x03, //     Input (Constant)
+#    endif
+
+    // X/Y position (2 or 4 bytes)
     0x05, 0x01, //     Usage Page (Generic Desktop)
     0x09, 0x30, //     Usage (X)
     0x09, 0x31, //     Usage (Y)
+#    ifndef MOUSE_EXTENDED_REPORT
     0x15, 0x81, //     Logical Minimum (-127)
     0x25, 0x7F, //     Logical Maximum (127)
     0x95, 0x02, //     Report Count (2)
     0x75, 0x08, //     Report Size (8)
+#    else
+    0x16, 0x01, 0x80, // Logical Minimum (-32767)
+    0x26, 0xFF, 0x7F, // Logical Maximum (32767)
+    0x95, 0x02,       // Report Count (2)
+    0x75, 0x10,       // Report Size (16)
+#    endif
     0x81, 0x06, //     Input (Data, Variable, Relative)
 
     // Vertical wheel (1 byte)