input/mouse/elantech.c

36 				unsigned char *param)
39 	    ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO)) {
51 				unsigned char *param)
57 	    ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) {
69 				unsigned char *param, int command)
77 		rc = ps2_command(ps2dev, param, command);
95 static int elantech_read_reg_params(struct psmouse *psmouse, u8 reg, u8 *param)
101 	    elantech_ps2_command(psmouse, param, PSMOUSE_CMD_GETINFO)) {
113 static int elantech_write_reg_params(struct psmouse *psmouse, u8 reg, u8 *param)
120 	    elantech_ps2_command(psmouse, NULL, param[0]) ||
122 	    elantech_ps2_command(psmouse, NULL, param[1]) ||
126 			    reg, param[0], param[1]);
140 	unsigned char param[3];
153 		    ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO)) {
163 		    elantech_ps2_command(psmouse, param, PSMOUSE_CMD_GETINFO)) {
173 		    elantech_ps2_command(psmouse, param, PSMOUSE_CMD_GETINFO)) {
182 		*val = param[0];
184 		*val = param[1];
1109 	unsigned char param[3];
1111 	if (elantech_send_cmd(psmouse, ETP_RESOLUTION_QUERY, param))
1114 	*x_res = elantech_convert_res(param[1] & 0x0f);
1115 	*y_res = elantech_convert_res((param[1] & 0xf0) >> 4);
1116 	*bus = param[2];
1373 static bool elantech_is_signature_valid(const unsigned char *param)
1378 	if (param[0] == 0)
1381 	if (param[1] == 0)
1386 	 * that param[2] may be 10 or 20, skip the rates check for these.
1388 	if ((param[0] & 0x0f) >= 0x06 && (param[1] & 0xaf) == 0x0f &&
1389 	    param[2] < 40)
1393 		if (param[2] == rates[i])
1405 	unsigned char param[3];
1413 	    ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) {
1422 	if (param[0] != 0x3c || param[1] != 0x03 ||
1423 	    (param[2] != 0xc8 && param[2] != 0x00)) {
1426 			    param[0], param[1], param[2]);
1435 	if (synaptics_send_cmd(psmouse, ETP_FW_VERSION_QUERY, param)) {
1442 		    param[0], param[1], param[2]);
1444 	if (!elantech_is_signature_valid(param)) {
1593 	 * NOTE: the code is expecting to receive param[] as an array of 3
1598 	unsigned char param[3] = { 0x10, 0x03 };
1600 	if (elantech_write_reg_params(psmouse, 0x7, param) ||
1601 	    elantech_read_reg_params(psmouse, 0x7, param) ||
1602 	    param[0] != 0x10 || param[1] != 0x03) {
1681 	unsigned char param[3];
1690 	if (synaptics_send_cmd(psmouse, ETP_FW_VERSION_QUERY, param)) {
1694 	info->fw_version = (param[0] << 16) | (param[1] << 8) | param[2];
1702 		     info->hw_version, param[0], param[1], param[2]);
1808 			if (info->send_cmd(psmouse, ETP_FW_ID_QUERY, param))
1811 			fixed_dpi = param[1] & 0x10;
1814 				if (info->send_cmd(psmouse, ETP_SAMPLE_QUERY, param))
1817 				info->x_max = (info->capabilities[1] - i) * param[1] / 2;
1818 				info->y_max = (info->capabilities[2] - i) * param[2] / 2;
1833 		if (info->send_cmd(psmouse, ETP_FW_ID_QUERY, param))
1836 		info->x_max = (0x0f & param[0]) << 8 | param[1];
1837 		info->y_max = (0xf0 & param[0]) << 4 | param[2];
1841 		if (info->send_cmd(psmouse, ETP_FW_ID_QUERY, param))
1844 		info->x_max = (0x0f & param[0]) << 8 | param[1];
1845 		info->y_max = (0xf0 & param[0]) << 4 | param[2];