12a0bd75eSArjan Opmeer /* 23f8c0df4SArjan Opmeer * Elantech Touchpad driver (v6) 32a0bd75eSArjan Opmeer * 43f8c0df4SArjan Opmeer * Copyright (C) 2007-2009 Arjan Opmeer <arjan@opmeer.net> 52a0bd75eSArjan Opmeer * 62a0bd75eSArjan Opmeer * This program is free software; you can redistribute it and/or modify it 72a0bd75eSArjan Opmeer * under the terms of the GNU General Public License version 2 as published 82a0bd75eSArjan Opmeer * by the Free Software Foundation. 92a0bd75eSArjan Opmeer * 102a0bd75eSArjan Opmeer * Trademarks are the property of their respective owners. 112a0bd75eSArjan Opmeer */ 122a0bd75eSArjan Opmeer 132a0bd75eSArjan Opmeer #ifndef _ELANTECH_H 142a0bd75eSArjan Opmeer #define _ELANTECH_H 152a0bd75eSArjan Opmeer 162a0bd75eSArjan Opmeer /* 172a0bd75eSArjan Opmeer * Command values for Synaptics style queries 182a0bd75eSArjan Opmeer */ 1928f49616SJJ Ding #define ETP_FW_ID_QUERY 0x00 202a0bd75eSArjan Opmeer #define ETP_FW_VERSION_QUERY 0x01 212a0bd75eSArjan Opmeer #define ETP_CAPABILITIES_QUERY 0x02 222a0bd75eSArjan Opmeer 232a0bd75eSArjan Opmeer /* 242a0bd75eSArjan Opmeer * Command values for register reading or writing 252a0bd75eSArjan Opmeer */ 262a0bd75eSArjan Opmeer #define ETP_REGISTER_READ 0x10 272a0bd75eSArjan Opmeer #define ETP_REGISTER_WRITE 0x11 2828f49616SJJ Ding #define ETP_REGISTER_READWRITE 0x00 292a0bd75eSArjan Opmeer 302a0bd75eSArjan Opmeer /* 312a0bd75eSArjan Opmeer * Hardware version 2 custom PS/2 command value 322a0bd75eSArjan Opmeer */ 332a0bd75eSArjan Opmeer #define ETP_PS2_CUSTOM_COMMAND 0xf8 342a0bd75eSArjan Opmeer 352a0bd75eSArjan Opmeer /* 362a0bd75eSArjan Opmeer * Times to retry a ps2_command and millisecond delay between tries 372a0bd75eSArjan Opmeer */ 382a0bd75eSArjan Opmeer #define ETP_PS2_COMMAND_TRIES 3 392a0bd75eSArjan Opmeer #define ETP_PS2_COMMAND_DELAY 500 402a0bd75eSArjan Opmeer 412a0bd75eSArjan Opmeer /* 422a0bd75eSArjan Opmeer * Times to try to read back a register and millisecond delay between tries 432a0bd75eSArjan Opmeer */ 442a0bd75eSArjan Opmeer #define ETP_READ_BACK_TRIES 5 452a0bd75eSArjan Opmeer #define ETP_READ_BACK_DELAY 2000 462a0bd75eSArjan Opmeer 472a0bd75eSArjan Opmeer /* 482a0bd75eSArjan Opmeer * Register bitmasks for hardware version 1 492a0bd75eSArjan Opmeer */ 502a0bd75eSArjan Opmeer #define ETP_R10_ABSOLUTE_MODE 0x04 512a0bd75eSArjan Opmeer #define ETP_R11_4_BYTE_MODE 0x02 522a0bd75eSArjan Opmeer 532a0bd75eSArjan Opmeer /* 542a0bd75eSArjan Opmeer * Capability bitmasks 552a0bd75eSArjan Opmeer */ 562a0bd75eSArjan Opmeer #define ETP_CAP_HAS_ROCKER 0x04 572a0bd75eSArjan Opmeer 582a0bd75eSArjan Opmeer /* 592a0bd75eSArjan Opmeer * One hard to find application note states that X axis range is 0 to 576 602a0bd75eSArjan Opmeer * and Y axis range is 0 to 384 for harware version 1. 612a0bd75eSArjan Opmeer * Edge fuzz might be necessary because of bezel around the touchpad 622a0bd75eSArjan Opmeer */ 632a0bd75eSArjan Opmeer #define ETP_EDGE_FUZZ_V1 32 642a0bd75eSArjan Opmeer 652a0bd75eSArjan Opmeer #define ETP_XMIN_V1 ( 0 + ETP_EDGE_FUZZ_V1) 662a0bd75eSArjan Opmeer #define ETP_XMAX_V1 (576 - ETP_EDGE_FUZZ_V1) 672a0bd75eSArjan Opmeer #define ETP_YMIN_V1 ( 0 + ETP_EDGE_FUZZ_V1) 682a0bd75eSArjan Opmeer #define ETP_YMAX_V1 (384 - ETP_EDGE_FUZZ_V1) 692a0bd75eSArjan Opmeer 702a0bd75eSArjan Opmeer /* 718a360d09SJJ Ding * The resolution for older v2 hardware doubled. 728a360d09SJJ Ding * (newer v2's firmware provides command so we can query) 732a0bd75eSArjan Opmeer */ 748a360d09SJJ Ding #define ETP_XMIN_V2 0 758a360d09SJJ Ding #define ETP_XMAX_V2 1152 768a360d09SJJ Ding #define ETP_YMIN_V2 0 778a360d09SJJ Ding #define ETP_YMAX_V2 768 782a0bd75eSArjan Opmeer 79f941c705SÉric Piel #define ETP_PMIN_V2 0 80f941c705SÉric Piel #define ETP_PMAX_V2 255 81f941c705SÉric Piel #define ETP_WMIN_V2 0 82f941c705SÉric Piel #define ETP_WMAX_V2 15 83f941c705SÉric Piel 8428f49616SJJ Ding /* 851dc6edecSJJ Ding * v3 hardware has 2 kinds of packet types, 861dc6edecSJJ Ding * v4 hardware has 3. 8728f49616SJJ Ding */ 8828f49616SJJ Ding #define PACKET_UNKNOWN 0x01 8928f49616SJJ Ding #define PACKET_DEBOUNCE 0x02 9028f49616SJJ Ding #define PACKET_V3_HEAD 0x03 9128f49616SJJ Ding #define PACKET_V3_TAIL 0x04 921dc6edecSJJ Ding #define PACKET_V4_HEAD 0x05 931dc6edecSJJ Ding #define PACKET_V4_MOTION 0x06 941dc6edecSJJ Ding #define PACKET_V4_STATUS 0x07 951dc6edecSJJ Ding 961dc6edecSJJ Ding /* 971dc6edecSJJ Ding * track up to 5 fingers for v4 hardware 981dc6edecSJJ Ding */ 991dc6edecSJJ Ding #define ETP_MAX_FINGERS 5 1001dc6edecSJJ Ding 1011dc6edecSJJ Ding /* 1021dc6edecSJJ Ding * weight value for v4 hardware 1031dc6edecSJJ Ding */ 1041dc6edecSJJ Ding #define ETP_WEIGHT_VALUE 5 1051dc6edecSJJ Ding 1061dc6edecSJJ Ding /* 1071dc6edecSJJ Ding * The base position for one finger, v4 hardware 1081dc6edecSJJ Ding */ 1091dc6edecSJJ Ding struct finger_pos { 1101dc6edecSJJ Ding unsigned int x; 1111dc6edecSJJ Ding unsigned int y; 1121dc6edecSJJ Ding }; 11328f49616SJJ Ding 1142a0bd75eSArjan Opmeer struct elantech_data { 1151dc6edecSJJ Ding unsigned char reg_07; 1162a0bd75eSArjan Opmeer unsigned char reg_10; 1172a0bd75eSArjan Opmeer unsigned char reg_11; 1182a0bd75eSArjan Opmeer unsigned char reg_20; 1192a0bd75eSArjan Opmeer unsigned char reg_21; 1202a0bd75eSArjan Opmeer unsigned char reg_22; 1212a0bd75eSArjan Opmeer unsigned char reg_23; 1222a0bd75eSArjan Opmeer unsigned char reg_24; 1232a0bd75eSArjan Opmeer unsigned char reg_25; 1242a0bd75eSArjan Opmeer unsigned char reg_26; 1252a0bd75eSArjan Opmeer unsigned char debug; 126230282a7SJJ Ding unsigned char capabilities[3]; 1277f29f17bSÉric Piel bool paritycheck; 1287f29f17bSÉric Piel bool jumpy_cursor; 129f941c705SÉric Piel bool reports_pressure; 130504e8beeSDmitry Torokhov unsigned char hw_version; 131504e8beeSDmitry Torokhov unsigned int fw_version; 1327f29f17bSÉric Piel unsigned int single_finger_reports; 133230282a7SJJ Ding unsigned int y_max; 1341dc6edecSJJ Ding unsigned int width; 1351dc6edecSJJ Ding struct finger_pos mt[ETP_MAX_FINGERS]; 1362a0bd75eSArjan Opmeer unsigned char parity[256]; 1372a0bd75eSArjan Opmeer }; 1382a0bd75eSArjan Opmeer 1392a0bd75eSArjan Opmeer #ifdef CONFIG_MOUSE_PS2_ELANTECH 140b7802c5cSDmitry Torokhov int elantech_detect(struct psmouse *psmouse, bool set_properties); 1412a0bd75eSArjan Opmeer int elantech_init(struct psmouse *psmouse); 1422a0bd75eSArjan Opmeer #else 143b7802c5cSDmitry Torokhov static inline int elantech_detect(struct psmouse *psmouse, bool set_properties) 1442a0bd75eSArjan Opmeer { 1452a0bd75eSArjan Opmeer return -ENOSYS; 1462a0bd75eSArjan Opmeer } 1472a0bd75eSArjan Opmeer static inline int elantech_init(struct psmouse *psmouse) 1482a0bd75eSArjan Opmeer { 1492a0bd75eSArjan Opmeer return -ENOSYS; 1502a0bd75eSArjan Opmeer } 1512a0bd75eSArjan Opmeer #endif /* CONFIG_MOUSE_PS2_ELANTECH */ 1522a0bd75eSArjan Opmeer 1532a0bd75eSArjan Opmeer #endif 154