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Add FN-based mouse mode switch

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When FN is held:
- Remap buttons to back/forward buttons
- Remap Y-axis as scroll and X-axis as pan
This commit is contained in:
Tobias Diedrich
2022-01-23 22:40:26 +01:00
parent 25354c4792
commit fef19b7759
1 changed files with 41 additions and 7 deletions
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main.s
+40 -6
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@@ -570,6 +570,9 @@ _mouse_write_ep2:
MOV A, #32 ; EP2 begins at offset 32
B0MOV UDP0, A
B0BTS0 keyFN
JMP _mouse_write_ep2_alt
B0MOV A, tpData1 ; Button byte
B0MOV UDR0_W, A
INCMS UDP0
@@ -580,10 +583,35 @@ _mouse_write_ep2:
SUB A, tpData3 ; Y-axis (inverted)
B0MOV UDR0_W, A
INCMS UDP0
MOV A, #0 ; Wheel
B0MOV UDR0_W, A
INCMS UDP0
MOV A, #0 ; AC Pan
B0MOV UDR0_W, A
JMP _mouse_write_ep2_exit
_mouse_write_ep2_alt:
MOV A, #0
B0BTS0 tpData1.0
OR A, #8 ; Button4 (back)
B0BTS0 tpData1.1
OR A, #16 ; Button5 (forward)
B0MOV UDR0_W, A
INCMS UDP0
MOV A, #0 ; X-axis
B0MOV UDR0_W, A
INCMS UDP0
MOV A, #0 ; Y-axis
B0MOV UDR0_W, A
INCMS UDP0
B0MOV A, tpData3 ; Wheel
B0MOV UDR0_W, A
INCMS UDP0
B0MOV A, tpData2 ; AC Pan
B0MOV UDR0_W, A
MOV A, #4 ; EP2 count is 4
_mouse_write_ep2_exit:
MOV A, #5 ; EP2 count is 5
B0MOV UE2R_C, A
; Set EP2 to ACK
@@ -1865,7 +1893,7 @@ _configuration_descriptor:
DB 0 ; bCountryCode (Not Supported)
DB 1 ; bNumDescriptors
DB 0x22 ; bDescriptorType (Report)
DB 52, 0 ; wDescriptorLength (52)
DB 61, 0 ; wDescriptorLength (61)
DB 7 ; bLength
DB 5 ; bDescriptorType (ENDPOINT)
@@ -1956,16 +1984,16 @@ _mouse_report_descriptor:
; Buttons
DB 0x05, 9 ; Usage Page (Button)
DB 0x19, 1 ; Usage Minimum (1)
DB 0x29, 3 ; Usage Maximum (3)
DB 0x29, 5 ; Usage Maximum (5)
DB 0x15, 0 ; Logical Minimum (0)
DB 0x25, 1 ; Logical Minimum (1)
DB 0x75, 1 ; Report Size (1)
DB 0x95, 3 ; Report Count (3)
DB 0x95, 5 ; Report Count (5)
DB 0x81, 2 ; Input (Data, Variable, Absolute)
; Reserved bits
DB 0x95, 1 ; Report Count (1)
DB 0x75, 5 ; Report Size (5)
DB 0x75, 3 ; Report Size (3)
DB 0x81, 1 ; Input (Constant, Absolute)
; Axis
@@ -1979,6 +2007,12 @@ _mouse_report_descriptor:
DB 0x95, 3 ; Report Count (3)
DB 0x81, 6 ; Input (Data, Variable, Relative)
; Pan axis
DB 0x05, 0xc ; Usage Page (Consumer Control)
DB 0x0a, 0x38, 0x02 ; Usage (AC Pan)
DB 0x95, 1 ; Report Count (1)
DB 0x81, 6 ; Input (Data, Variable, Relative)
DB 0xc0 ; End Collection (Physical)
DB 0xc0 ; End Collection (Application)
_mouse_report_descriptor_end:
@@ -2081,7 +2115,7 @@ _usb_get_desc_hid_if1:
B0MOV txPtrHi, A
MOV A, #_mouse_report_descriptor$L
B0MOV txPtrLo, A
MOV A, #52
MOV A, #61
B0MOV txSizeLo, A
JMP _usb_get_desc