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 2284a90b61SJJ Ding #define ETP_SAMPLE_QUERY 0x03 233d95fd6aSJJ Ding #define ETP_RESOLUTION_QUERY 0x04 242a0bd75eSArjan Opmeer 252a0bd75eSArjan Opmeer /* 262a0bd75eSArjan Opmeer * Command values for register reading or writing 272a0bd75eSArjan Opmeer */ 282a0bd75eSArjan Opmeer #define ETP_REGISTER_READ 0x10 292a0bd75eSArjan Opmeer #define ETP_REGISTER_WRITE 0x11 3028f49616SJJ Ding #define ETP_REGISTER_READWRITE 0x00 312a0bd75eSArjan Opmeer 322a0bd75eSArjan Opmeer /* 332a0bd75eSArjan Opmeer * Hardware version 2 custom PS/2 command value 342a0bd75eSArjan Opmeer */ 352a0bd75eSArjan Opmeer #define ETP_PS2_CUSTOM_COMMAND 0xf8 362a0bd75eSArjan Opmeer 372a0bd75eSArjan Opmeer /* 382a0bd75eSArjan Opmeer * Times to retry a ps2_command and millisecond delay between tries 392a0bd75eSArjan Opmeer */ 402a0bd75eSArjan Opmeer #define ETP_PS2_COMMAND_TRIES 3 412a0bd75eSArjan Opmeer #define ETP_PS2_COMMAND_DELAY 500 422a0bd75eSArjan Opmeer 432a0bd75eSArjan Opmeer /* 442a0bd75eSArjan Opmeer * Times to try to read back a register and millisecond delay between tries 452a0bd75eSArjan Opmeer */ 462a0bd75eSArjan Opmeer #define ETP_READ_BACK_TRIES 5 472a0bd75eSArjan Opmeer #define ETP_READ_BACK_DELAY 2000 482a0bd75eSArjan Opmeer 492a0bd75eSArjan Opmeer /* 502a0bd75eSArjan Opmeer * Register bitmasks for hardware version 1 512a0bd75eSArjan Opmeer */ 522a0bd75eSArjan Opmeer #define ETP_R10_ABSOLUTE_MODE 0x04 532a0bd75eSArjan Opmeer #define ETP_R11_4_BYTE_MODE 0x02 542a0bd75eSArjan Opmeer 552a0bd75eSArjan Opmeer /* 562a0bd75eSArjan Opmeer * Capability bitmasks 572a0bd75eSArjan Opmeer */ 582a0bd75eSArjan Opmeer #define ETP_CAP_HAS_ROCKER 0x04 592a0bd75eSArjan Opmeer 602a0bd75eSArjan Opmeer /* 612a0bd75eSArjan Opmeer * One hard to find application note states that X axis range is 0 to 576 622a0bd75eSArjan Opmeer * and Y axis range is 0 to 384 for harware version 1. 632a0bd75eSArjan Opmeer * Edge fuzz might be necessary because of bezel around the touchpad 642a0bd75eSArjan Opmeer */ 652a0bd75eSArjan Opmeer #define ETP_EDGE_FUZZ_V1 32 662a0bd75eSArjan Opmeer 672a0bd75eSArjan Opmeer #define ETP_XMIN_V1 ( 0 + ETP_EDGE_FUZZ_V1) 682a0bd75eSArjan Opmeer #define ETP_XMAX_V1 (576 - ETP_EDGE_FUZZ_V1) 692a0bd75eSArjan Opmeer #define ETP_YMIN_V1 ( 0 + ETP_EDGE_FUZZ_V1) 702a0bd75eSArjan Opmeer #define ETP_YMAX_V1 (384 - ETP_EDGE_FUZZ_V1) 712a0bd75eSArjan Opmeer 722a0bd75eSArjan Opmeer /* 738a360d09SJJ Ding * The resolution for older v2 hardware doubled. 748a360d09SJJ Ding * (newer v2's firmware provides command so we can query) 752a0bd75eSArjan Opmeer */ 768a360d09SJJ Ding #define ETP_XMIN_V2 0 778a360d09SJJ Ding #define ETP_XMAX_V2 1152 788a360d09SJJ Ding #define ETP_YMIN_V2 0 798a360d09SJJ Ding #define ETP_YMAX_V2 768 802a0bd75eSArjan Opmeer 81f941c705SÉric Piel #define ETP_PMIN_V2 0 82f941c705SÉric Piel #define ETP_PMAX_V2 255 83f941c705SÉric Piel #define ETP_WMIN_V2 0 84f941c705SÉric Piel #define ETP_WMAX_V2 15 85f941c705SÉric Piel 8628f49616SJJ Ding /* 871dc6edecSJJ Ding * v3 hardware has 2 kinds of packet types, 881dc6edecSJJ Ding * v4 hardware has 3. 8928f49616SJJ Ding */ 9028f49616SJJ Ding #define PACKET_UNKNOWN 0x01 9128f49616SJJ Ding #define PACKET_DEBOUNCE 0x02 9228f49616SJJ Ding #define PACKET_V3_HEAD 0x03 9328f49616SJJ Ding #define PACKET_V3_TAIL 0x04 941dc6edecSJJ Ding #define PACKET_V4_HEAD 0x05 951dc6edecSJJ Ding #define PACKET_V4_MOTION 0x06 961dc6edecSJJ Ding #define PACKET_V4_STATUS 0x07 971dc6edecSJJ Ding 981dc6edecSJJ Ding /* 991dc6edecSJJ Ding * track up to 5 fingers for v4 hardware 1001dc6edecSJJ Ding */ 1011dc6edecSJJ Ding #define ETP_MAX_FINGERS 5 1021dc6edecSJJ Ding 1031dc6edecSJJ Ding /* 1041dc6edecSJJ Ding * weight value for v4 hardware 1051dc6edecSJJ Ding */ 1061dc6edecSJJ Ding #define ETP_WEIGHT_VALUE 5 1071dc6edecSJJ Ding 1081dc6edecSJJ Ding /* 1091dc6edecSJJ Ding * The base position for one finger, v4 hardware 1101dc6edecSJJ Ding */ 1111dc6edecSJJ Ding struct finger_pos { 1121dc6edecSJJ Ding unsigned int x; 1131dc6edecSJJ Ding unsigned int y; 1141dc6edecSJJ Ding }; 11528f49616SJJ Ding 1162a0bd75eSArjan Opmeer struct elantech_data { 1171dc6edecSJJ Ding unsigned char reg_07; 1182a0bd75eSArjan Opmeer unsigned char reg_10; 1192a0bd75eSArjan Opmeer unsigned char reg_11; 1202a0bd75eSArjan Opmeer unsigned char reg_20; 1212a0bd75eSArjan Opmeer unsigned char reg_21; 1222a0bd75eSArjan Opmeer unsigned char reg_22; 1232a0bd75eSArjan Opmeer unsigned char reg_23; 1242a0bd75eSArjan Opmeer unsigned char reg_24; 1252a0bd75eSArjan Opmeer unsigned char reg_25; 1262a0bd75eSArjan Opmeer unsigned char reg_26; 1272a0bd75eSArjan Opmeer unsigned char debug; 128230282a7SJJ Ding unsigned char capabilities[3]; 1297f29f17bSÉric Piel bool paritycheck; 1307f29f17bSÉric Piel bool jumpy_cursor; 131f941c705SÉric Piel bool reports_pressure; 132504e8beeSDmitry Torokhov unsigned char hw_version; 133504e8beeSDmitry Torokhov unsigned int fw_version; 1347f29f17bSÉric Piel unsigned int single_finger_reports; 135230282a7SJJ Ding unsigned int y_max; 1361dc6edecSJJ Ding unsigned int width; 1371dc6edecSJJ Ding struct finger_pos mt[ETP_MAX_FINGERS]; 1382a0bd75eSArjan Opmeer unsigned char parity[256]; 139b56b92a9SJJ Ding int (*send_cmd)(struct psmouse *psmouse, unsigned char c, unsigned char *param); 1402a0bd75eSArjan Opmeer }; 1412a0bd75eSArjan Opmeer 1422a0bd75eSArjan Opmeer #ifdef CONFIG_MOUSE_PS2_ELANTECH 143b7802c5cSDmitry Torokhov int elantech_detect(struct psmouse *psmouse, bool set_properties); 1442a0bd75eSArjan Opmeer int elantech_init(struct psmouse *psmouse); 1452a0bd75eSArjan Opmeer #else 146b7802c5cSDmitry Torokhov static inline int elantech_detect(struct psmouse *psmouse, bool set_properties) 1472a0bd75eSArjan Opmeer { 1482a0bd75eSArjan Opmeer return -ENOSYS; 1492a0bd75eSArjan Opmeer } 1502a0bd75eSArjan Opmeer static inline int elantech_init(struct psmouse *psmouse) 1512a0bd75eSArjan Opmeer { 1522a0bd75eSArjan Opmeer return -ENOSYS; 1532a0bd75eSArjan Opmeer } 1542a0bd75eSArjan Opmeer #endif /* CONFIG_MOUSE_PS2_ELANTECH */ 1552a0bd75eSArjan Opmeer 1562a0bd75eSArjan Opmeer #endif 157