input/mouse/logips2pp.c

38  * Process a PS2++ or PS2T++ packet.
44 	u8 *packet = psmouse->packet;
50  * Full packet accumulated, process it
53 	if ((packet[0] & 0x48) == 0x48 && (packet[1] & 0x02) == 0x02) {
55 		/* Logitech extended packet */
56 		switch ((packet[1] >> 4) | (packet[0] & 0x30)) {
61 				packet[2] & 0x80 ? REL_HWHEEL : REL_WHEEL,
62 				-sign_extend32(packet[2], 3));
63 			input_report_key(dev, BTN_SIDE,  packet[2] & BIT(4));
64 			input_report_key(dev, BTN_EXTRA, packet[2] & BIT(5));
70 			input_report_key(dev, BTN_SIDE,    packet[2] & BIT(0));
71 			input_report_key(dev, BTN_EXTRA,   packet[2] & BIT(1));
72 			input_report_key(dev, BTN_TASK,    packet[2] & BIT(2));
73 			input_report_key(dev, BTN_BACK,    packet[2] & BIT(3));
74 			input_report_key(dev, BTN_FORWARD, packet[2] & BIT(4));
81 				packet[2] & 0x08 ? REL_HWHEEL : REL_WHEEL,
82 				-sign_extend32(packet[2] >> 4, 3));
83 			packet[0] = packet[2] | BIT(3);
88 				    "Received PS2++ packet #%x, but don't know how to handle.\n",
89 				    (packet[1] >> 4) | (packet[0] & 0x30));
93 		psmouse_report_standard_buttons(dev, packet[0]);
97 		psmouse_report_standard_packet(dev, packet);