- print("ps2_mouse usb: [");
- phex(mouse_report.buttons); print("|");
- print_hex8((uint8_t)mouse_report.x); print(" ");
- print_hex8((uint8_t)mouse_report.y); print(" ");
- print_hex8((uint8_t)mouse_report.v); print(" ");
- print_hex8((uint8_t)mouse_report.h); print("]\n");
-}
-
-
-/* PS/2 Mouse Synopsis
- * http://www.computer-engineering.org/ps2mouse/
- *
- * Command:
- * 0xFF: Reset
- * 0xF6: Set Defaults Sampling; rate=100, resolution=4cnt/mm, scaling=1:1, reporting=disabled
- * 0xF5: Disable Data Reporting
- * 0xF4: Enable Data Reporting
- * 0xF3: Set Sample Rate
- * 0xF2: Get Device ID
- * 0xF0: Set Remote Mode
- * 0xEB: Read Data
- * 0xEA: Set Stream Mode
- * 0xE9: Status Request
- * 0xE8: Set Resolution
- * 0xE7: Set Scaling 2:1
- * 0xE6: Set Scaling 1:1
- *
- * Mode:
- * Stream Mode: devices sends the data when it changs its state
- * Remote Mode: host polls the data periodically
- *
- * This code uses Remote Mode and polls the data with Read Data(0xEB).
- *
- * Data format:
- * byte|7 6 5 4 3 2 1 0
- * ----+--------------------------------------------------------------
- * 0|Yovflw Xovflw Ysign Xsign 1 Middle Right Left
- * 1| X movement
- * 2| Y movement
- */
+ print("ps2_mouse: [");
+ phex(mouse_report->buttons); print("|");
+ print_hex8((uint8_t)mouse_report->x); print(" ");
+ print_hex8((uint8_t)mouse_report->y); print(" ");
+ print_hex8((uint8_t)mouse_report->v); print(" ");
+ print_hex8((uint8_t)mouse_report->h); print("]\n");
+}
+
+static inline void ps2_mouse_enable_scrolling(void) {
+ PS2_MOUSE_SEND(PS2_MOUSE_SET_SAMPLE_RATE, "Initiaing scroll wheel enable: Set sample rate");
+ PS2_MOUSE_SEND(200, "200");
+ PS2_MOUSE_SEND(PS2_MOUSE_SET_SAMPLE_RATE, "Set sample rate");
+ PS2_MOUSE_SEND(100, "100");
+ PS2_MOUSE_SEND(PS2_MOUSE_SET_SAMPLE_RATE, "Set sample rate");
+ PS2_MOUSE_SEND(80, "80");
+ PS2_MOUSE_SEND(PS2_MOUSE_GET_DEVICE_ID, "Finished enabling scroll wheel");
+ _delay_ms(20);
+}
+
+#define PRESS_SCROLL_BUTTONS mouse_report->buttons |= (PS2_MOUSE_SCROLL_BTN_MASK)
+#define RELEASE_SCROLL_BUTTONS mouse_report->buttons &= ~(PS2_MOUSE_SCROLL_BTN_MASK)
+static inline void ps2_mouse_scroll_button_task(report_mouse_t *mouse_report) {
+ static enum {
+ SCROLL_NONE,
+ SCROLL_BTN,
+ SCROLL_SENT,
+ } scroll_state = SCROLL_NONE;
+ static uint16_t scroll_button_time = 0;
+
+ if (PS2_MOUSE_SCROLL_BTN_MASK == (mouse_report->buttons & (PS2_MOUSE_SCROLL_BTN_MASK))) {
+ // All scroll buttons are pressed
+
+ if (scroll_state == SCROLL_NONE) {
+ scroll_button_time = timer_read();
+ scroll_state = SCROLL_BTN;
+ }
+
+ // 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);
+ mouse_report->x = 0;
+ mouse_report->y = 0;
+#ifdef PS2_MOUSE_INVERT_H
+ mouse_report->h = -mouse_report->h;
+#endif
+#ifdef PS2_MOUSE_INVERT_V
+ mouse_report->v = -mouse_report->v;
+#endif
+ }
+ } else if (0 == (PS2_MOUSE_SCROLL_BTN_MASK & mouse_report->buttons)) {
+ // None of the scroll buttons are pressed
+
+#if PS2_MOUSE_SCROLL_BTN_SEND
+ if (scroll_state == SCROLL_BTN
+ && timer_elapsed(scroll_button_time) < PS2_MOUSE_SCROLL_BTN_SEND) {
+ PRESS_SCROLL_BUTTONS;
+ host_mouse_send(mouse_report);
+ _delay_ms(100);
+ RELEASE_SCROLL_BUTTONS;
+ }
+#endif
+ scroll_state = SCROLL_NONE;
+ }
+
+ RELEASE_SCROLL_BUTTONS;
+}