diff options
Diffstat (limited to 'drivers/ps2/ps2_mouse.c')
| -rw-r--r-- | drivers/ps2/ps2_mouse.c | 27 | 
1 files changed, 19 insertions, 8 deletions
| diff --git a/drivers/ps2/ps2_mouse.c b/drivers/ps2/ps2_mouse.c index b32ad1e222..d6911d66f2 100644 --- a/drivers/ps2/ps2_mouse.c +++ b/drivers/ps2/ps2_mouse.c @@ -81,10 +81,10 @@ void ps2_mouse_task(void) {      rcv = ps2_host_send(PS2_MOUSE_READ_DATA);      if (rcv == PS2_ACK) {          mouse_report.buttons = ps2_host_recv_response(); -        mouse_report.x       = ps2_host_recv_response() * PS2_MOUSE_X_MULTIPLIER; -        mouse_report.y       = ps2_host_recv_response() * PS2_MOUSE_Y_MULTIPLIER; +        mouse_report.x       = ps2_host_recv_response(); +        mouse_report.y       = ps2_host_recv_response();  #    ifdef PS2_MOUSE_ENABLE_SCROLLING -        mouse_report.v = -(ps2_host_recv_response() & PS2_MOUSE_SCROLL_MASK) * PS2_MOUSE_V_MULTIPLIER; +        mouse_report.v = -(ps2_host_recv_response() & PS2_MOUSE_SCROLL_MASK);  #    endif      } else {          if (debug_mouse) print("ps2_mouse: fail to get mouse packet\n"); @@ -92,10 +92,10 @@ void ps2_mouse_task(void) {  #else      if (pbuf_has_data()) {          mouse_report.buttons = ps2_host_recv_response(); -        mouse_report.x       = ps2_host_recv_response() * PS2_MOUSE_X_MULTIPLIER; -        mouse_report.y       = ps2_host_recv_response() * PS2_MOUSE_Y_MULTIPLIER; +        mouse_report.x       = ps2_host_recv_response(); +        mouse_report.y       = ps2_host_recv_response();  #    ifdef PS2_MOUSE_ENABLE_SCROLLING -        mouse_report.v       = -(ps2_host_recv_response() & PS2_MOUSE_SCROLL_MASK) * PS2_MOUSE_V_MULTIPLIER; +        mouse_report.v       = -(ps2_host_recv_response() & PS2_MOUSE_SCROLL_MASK);  #    endif      } else {          if (debug_mouse) print("ps2_mouse: fail to get mouse packet\n"); @@ -168,6 +168,7 @@ void ps2_mouse_set_sample_rate(ps2_mouse_sample_rate_t sample_rate) {  #define X_IS_OVF (mouse_report->buttons & (1 << PS2_MOUSE_X_OVFLW))  #define Y_IS_OVF (mouse_report->buttons & (1 << PS2_MOUSE_Y_OVFLW))  static inline void ps2_mouse_convert_report_to_hid(report_mouse_t *mouse_report) { +#ifndef MOUSE_EXTENDED_REPORT      // PS/2 mouse data is '9-bit integer'(-256 to 255) which is comprised of sign-bit and 8-bit value.      // bit: 8    7 ... 0      //      sign \8-bit/ @@ -175,8 +176,18 @@ static inline void ps2_mouse_convert_report_to_hid(report_mouse_t *mouse_report)      // Meanwhile USB HID mouse indicates 8bit data(-127 to 127), note that -128 is not used.      //      // This converts PS/2 data into HID value. Use only -127-127 out of PS/2 9-bit. +    mouse_report->x *= PS2_MOUSE_X_MULTIPLIER; +    mouse_report->y *= PS2_MOUSE_Y_MULTIPLIER;      mouse_report->x = X_IS_NEG ? ((!X_IS_OVF && -127 <= mouse_report->x && mouse_report->x <= -1) ? mouse_report->x : -127) : ((!X_IS_OVF && 0 <= mouse_report->x && mouse_report->x <= 127) ? mouse_report->x : 127);      mouse_report->y = Y_IS_NEG ? ((!Y_IS_OVF && -127 <= mouse_report->y && mouse_report->y <= -1) ? mouse_report->y : -127) : ((!Y_IS_OVF && 0 <= mouse_report->y && mouse_report->y <= 127) ? mouse_report->y : 127); +#else +    // Sign extend if negative, otherwise leave positive 8-bits as-is +    mouse_report->x = X_IS_NEG ? (mouse_report->x | ~0xFF) : mouse_report->x; +    mouse_report->y = Y_IS_NEG ? (mouse_report->y | ~0xFF) : mouse_report->y; +    mouse_report->x *= PS2_MOUSE_X_MULTIPLIER; +    mouse_report->y *= PS2_MOUSE_Y_MULTIPLIER; +#endif +    mouse_report->v *= PS2_MOUSE_V_MULTIPLIER;  #ifdef PS2_MOUSE_INVERT_BUTTONS      // swap left & right buttons @@ -197,8 +208,8 @@ static inline void ps2_mouse_convert_report_to_hid(report_mouse_t *mouse_report)  #endif  #ifdef PS2_MOUSE_ROTATE -    int8_t x = mouse_report->x; -    int8_t y = mouse_report->y; +    mouse_xy_report_t x = mouse_report->x; +    mouse_xy_report_t y = mouse_report->y;  #    if PS2_MOUSE_ROTATE == 90      mouse_report->x = y;      mouse_report->y = -x; | 
