// SPDX-License-Identifier: GPL-2.0-only /* * ALPS touchpad PS/2 mouse driver * * Copyright (c) 2003 Neil Brown <[email protected]> * Copyright (c) 2003-2005 Peter Osterlund <[email protected]> * Copyright (c) 2004 Dmitry Torokhov <[email protected]> * Copyright (c) 2005 Vojtech Pavlik <[email protected]> * Copyright (c) 2009 Sebastian Kapfer <[email protected]> * * ALPS detection, tap switching and status querying info is taken from * tpconfig utility (by C. Scott Ananian and Bruce Kall). */ #include <linux/slab.h> #include <linux/input.h> #include <linux/input/mt.h> #include <linux/serio.h> #include <linux/libps2.h> #include <linux/dmi.h> #include "psmouse.h" #include "alps.h" #include "trackpoint.h" /* * Definitions for ALPS version 3 and 4 command mode protocol */ #define ALPS_CMD_NIBBLE_10 … #define ALPS_REG_BASE_RUSHMORE … #define ALPS_REG_BASE_V7 … #define ALPS_REG_BASE_PINNACLE … static const struct alps_nibble_commands alps_v3_nibble_commands[] = …; static const struct alps_nibble_commands alps_v4_nibble_commands[] = …; static const struct alps_nibble_commands alps_v6_nibble_commands[] = …; #define ALPS_DUALPOINT … #define ALPS_PASS … #define ALPS_WHEEL … #define ALPS_FW_BK_1 … #define ALPS_FW_BK_2 … #define ALPS_FOUR_BUTTONS … #define ALPS_PS2_INTERLEAVED … #define ALPS_STICK_BITS … #define ALPS_BUTTONPAD … #define ALPS_DUALPOINT_WITH_PRESSURE … static const struct alps_model_info alps_model_data[] = …; static const struct alps_protocol_info alps_v3_protocol_data = …; static const struct alps_protocol_info alps_v3_rushmore_data = …; static const struct alps_protocol_info alps_v4_protocol_data = …; static const struct alps_protocol_info alps_v5_protocol_data = …; static const struct alps_protocol_info alps_v7_protocol_data = …; static const struct alps_protocol_info alps_v8_protocol_data = …; static const struct alps_protocol_info alps_v9_protocol_data = …; /* * Some v2 models report the stick buttons in separate bits */ static const struct dmi_system_id alps_dmi_has_separate_stick_buttons[] = …; static void alps_set_abs_params_st(struct alps_data *priv, struct input_dev *dev1); static void alps_set_abs_params_semi_mt(struct alps_data *priv, struct input_dev *dev1); static void alps_set_abs_params_v7(struct alps_data *priv, struct input_dev *dev1); static void alps_set_abs_params_ss4_v2(struct alps_data *priv, struct input_dev *dev1); /* Packet formats are described in Documentation/input/devices/alps.rst */ static bool alps_is_valid_first_byte(struct alps_data *priv, unsigned char data) { … } static void alps_report_buttons(struct input_dev *dev1, struct input_dev *dev2, int left, int right, int middle) { … } static void alps_process_packet_v1_v2(struct psmouse *psmouse) { … } static void alps_get_bitmap_points(unsigned int map, struct alps_bitmap_point *low, struct alps_bitmap_point *high, int *fingers) { … } /* * Process bitmap data from semi-mt protocols. Returns the number of * fingers detected. A return value of 0 means at least one of the * bitmaps was empty. * * The bitmaps don't have enough data to track fingers, so this function * only generates points representing a bounding box of all contacts. * These points are returned in fields->mt when the return value * is greater than 0. */ static int alps_process_bitmap(struct alps_data *priv, struct alps_fields *fields) { … } static void alps_set_slot(struct input_dev *dev, int slot, int x, int y) { … } static void alps_report_mt_data(struct psmouse *psmouse, int n) { … } static void alps_report_semi_mt_data(struct psmouse *psmouse, int fingers) { … } static void alps_process_trackstick_packet_v3(struct psmouse *psmouse) { … } static void alps_decode_buttons_v3(struct alps_fields *f, unsigned char *p) { … } static int alps_decode_pinnacle(struct alps_fields *f, unsigned char *p, struct psmouse *psmouse) { … } static int alps_decode_rushmore(struct alps_fields *f, unsigned char *p, struct psmouse *psmouse) { … } static int alps_decode_dolphin(struct alps_fields *f, unsigned char *p, struct psmouse *psmouse) { … } static void alps_process_touchpad_packet_v3_v5(struct psmouse *psmouse) { … } static void alps_process_packet_v3(struct psmouse *psmouse) { … } static void alps_process_packet_v6(struct psmouse *psmouse) { … } static void alps_process_packet_v4(struct psmouse *psmouse) { … } static bool alps_is_valid_package_v7(struct psmouse *psmouse) { … } static unsigned char alps_get_packet_id_v7(char *byte) { … } static void alps_get_finger_coordinate_v7(struct input_mt_pos *mt, unsigned char *pkt, unsigned char pkt_id) { … } static int alps_get_mt_count(struct input_mt_pos *mt) { … } static int alps_decode_packet_v7(struct alps_fields *f, unsigned char *p, struct psmouse *psmouse) { … } static void alps_process_trackstick_packet_v7(struct psmouse *psmouse) { … } static void alps_process_touchpad_packet_v7(struct psmouse *psmouse) { … } static void alps_process_packet_v7(struct psmouse *psmouse) { … } static enum SS4_PACKET_ID alps_get_pkt_id_ss4_v2(unsigned char *byte) { … } static int alps_decode_ss4_v2(struct alps_fields *f, unsigned char *p, struct psmouse *psmouse) { … } static void alps_process_packet_ss4_v2(struct psmouse *psmouse) { … } static bool alps_is_valid_package_ss4_v2(struct psmouse *psmouse) { … } static DEFINE_MUTEX(alps_mutex); static int alps_do_register_bare_ps2_mouse(struct alps_data *priv) { … } static void alps_register_bare_ps2_mouse(struct work_struct *work) { … } static void alps_report_bare_ps2_packet(struct psmouse *psmouse, unsigned char packet[], bool report_buttons) { … } static psmouse_ret_t alps_handle_interleaved_ps2(struct psmouse *psmouse) { … } static void alps_flush_packet(struct timer_list *t) { … } static psmouse_ret_t alps_process_byte(struct psmouse *psmouse) { … } static int alps_command_mode_send_nibble(struct psmouse *psmouse, int nibble) { … } static int alps_command_mode_set_addr(struct psmouse *psmouse, int addr) { … } static int __alps_command_mode_read_reg(struct psmouse *psmouse, int addr) { … } static int alps_command_mode_read_reg(struct psmouse *psmouse, int addr) { … } static int __alps_command_mode_write_reg(struct psmouse *psmouse, u8 value) { … } static int alps_command_mode_write_reg(struct psmouse *psmouse, int addr, u8 value) { … } static int alps_rpt_cmd(struct psmouse *psmouse, int init_command, int repeated_command, unsigned char *param) { … } static bool alps_check_valid_firmware_id(unsigned char id[]) { … } static int alps_enter_command_mode(struct psmouse *psmouse) { … } static inline int alps_exit_command_mode(struct psmouse *psmouse) { … } /* * For DualPoint devices select the device that should respond to * subsequent commands. It looks like glidepad is behind stickpointer, * I'd thought it would be other way around... */ static int alps_passthrough_mode_v2(struct psmouse *psmouse, bool enable) { … } static int alps_absolute_mode_v1_v2(struct psmouse *psmouse) { … } static int alps_monitor_mode_send_word(struct psmouse *psmouse, u16 word) { … } static int alps_monitor_mode_write_reg(struct psmouse *psmouse, u16 addr, u16 value) { … } static int alps_monitor_mode(struct psmouse *psmouse, bool enable) { … } static int alps_absolute_mode_v6(struct psmouse *psmouse) { … } static int alps_get_status(struct psmouse *psmouse, char *param) { … } /* * Turn touchpad tapping on or off. The sequences are: * 0xE9 0xF5 0xF5 0xF3 0x0A to enable, * 0xE9 0xF5 0xF5 0xE8 0x00 to disable. * My guess that 0xE9 (GetInfo) is here as a sync point. * For models that also have stickpointer (DualPoints) its tapping * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but * we don't fiddle with it. */ static int alps_tap_mode(struct psmouse *psmouse, int enable) { … } /* * alps_poll() - poll the touchpad for current motion packet. * Used in resync. */ static int alps_poll(struct psmouse *psmouse) { … } static int alps_hw_init_v1_v2(struct psmouse *psmouse) { … } /* Must be in passthrough mode when calling this function */ static int alps_trackstick_enter_extended_mode_v3_v6(struct psmouse *psmouse) { … } static int alps_hw_init_v6(struct psmouse *psmouse) { … } /* * Enable or disable passthrough mode to the trackstick. */ static int alps_passthrough_mode_v3(struct psmouse *psmouse, int reg_base, bool enable) { … } /* Must be in command mode when calling this function */ static int alps_absolute_mode_v3(struct psmouse *psmouse) { … } static int alps_probe_trackstick_v3_v7(struct psmouse *psmouse, int reg_base) { … } static int alps_setup_trackstick_v3(struct psmouse *psmouse, int reg_base) { … } static int alps_hw_init_v3(struct psmouse *psmouse) { … } static int alps_get_v3_v7_resolution(struct psmouse *psmouse, int reg_pitch) { … } static int alps_hw_init_rushmore_v3(struct psmouse *psmouse) { … } /* Must be in command mode when calling this function */ static int alps_absolute_mode_v4(struct psmouse *psmouse) { … } static int alps_hw_init_v4(struct psmouse *psmouse) { … } static int alps_get_otp_values_ss4_v2(struct psmouse *psmouse, unsigned char index, unsigned char otp[]) { … } static int alps_update_device_area_ss4_v2(unsigned char otp[][4], struct alps_data *priv) { … } static int alps_update_btn_info_ss4_v2(unsigned char otp[][4], struct alps_data *priv) { … } static int alps_update_dual_info_ss4_v2(unsigned char otp[][4], struct alps_data *priv, struct psmouse *psmouse) { … } static int alps_set_defaults_ss4_v2(struct psmouse *psmouse, struct alps_data *priv) { … } static int alps_dolphin_get_device_area(struct psmouse *psmouse, struct alps_data *priv) { … } static int alps_hw_init_dolphin_v1(struct psmouse *psmouse) { … } static int alps_hw_init_v7(struct psmouse *psmouse) { … } static int alps_hw_init_ss4_v2(struct psmouse *psmouse) { … } static int alps_set_protocol(struct psmouse *psmouse, struct alps_data *priv, const struct alps_protocol_info *protocol) { … } static const struct alps_protocol_info *alps_match_table(unsigned char *e7, unsigned char *ec) { … } static bool alps_is_cs19_trackpoint(struct psmouse *psmouse) { … } static int alps_identify(struct psmouse *psmouse, struct alps_data *priv) { … } static int alps_reconnect(struct psmouse *psmouse) { … } static void alps_disconnect(struct psmouse *psmouse) { … } static void alps_set_abs_params_st(struct alps_data *priv, struct input_dev *dev1) { … } static void alps_set_abs_params_mt_common(struct alps_data *priv, struct input_dev *dev1) { … } static void alps_set_abs_params_semi_mt(struct alps_data *priv, struct input_dev *dev1) { … } static void alps_set_abs_params_v7(struct alps_data *priv, struct input_dev *dev1) { … } static void alps_set_abs_params_ss4_v2(struct alps_data *priv, struct input_dev *dev1) { … } int alps_init(struct psmouse *psmouse) { … } int alps_detect(struct psmouse *psmouse, bool set_properties) { … }
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