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Take care of scroll divisor remainders for PS/2 drag scroll (#20732)

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Daniel Kao 2023-09-24 19:49:31 -07:00 committed by GitHub
parent 960d6e0d7d
commit f35dee5c05
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 10 additions and 3 deletions
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11
drivers/ps2/ps2_mouse.c
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@ -265,6 +265,7 @@ static inline void ps2_mouse_scroll_button_task(report_mouse_t *mouse_report) {
SCROLL_SENT,
} scroll_state = SCROLL_NONE;
static uint16_t scroll_button_time = 0;
static int16_t scroll_x, scroll_y;
if (PS2_MOUSE_SCROLL_BTN_MASK == (mouse_report->buttons & (PS2_MOUSE_SCROLL_BTN_MASK))) {
// All scroll buttons are pressed
@ -272,13 +273,19 @@ static inline void ps2_mouse_scroll_button_task(report_mouse_t *mouse_report) {
if (scroll_state == SCROLL_NONE) {
scroll_button_time = timer_read();
scroll_state = SCROLL_BTN;
scroll_x = 0;
scroll_y = 0;
}
// If the mouse has moved, update the report to scroll instead of move the mouse
if (mouse_report->x || mouse_report->y) {
scroll_state = SCROLL_SENT;
mouse_report->v = -mouse_report->y / (PS2_MOUSE_SCROLL_DIVISOR_V);
mouse_report->h = mouse_report->x / (PS2_MOUSE_SCROLL_DIVISOR_H);
scroll_y += mouse_report->y;
scroll_x += mouse_report->x;
mouse_report->v = -scroll_y / (PS2_MOUSE_SCROLL_DIVISOR_V);
mouse_report->h = scroll_x / (PS2_MOUSE_SCROLL_DIVISOR_H);
scroll_y += (mouse_report->v * (PS2_MOUSE_SCROLL_DIVISOR_V));
scroll_x -= (mouse_report->h * (PS2_MOUSE_SCROLL_DIVISOR_H));
mouse_report->x = 0;
mouse_report->y = 0;
#ifdef PS2_MOUSE_INVERT_H