diff options
Diffstat (limited to 'drivers/input/mouse/synaptics.h')
| -rw-r--r-- | drivers/input/mouse/synaptics.h | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/drivers/input/mouse/synaptics.h b/drivers/input/mouse/synaptics.h new file mode 100644 index 000000000..08533d1b1 --- /dev/null +++ b/drivers/input/mouse/synaptics.h @@ -0,0 +1,214 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Synaptics TouchPad PS/2 mouse driver + */ + +#ifndef _SYNAPTICS_H +#define _SYNAPTICS_H + +/* synaptics queries */ +#define SYN_QUE_IDENTIFY 0x00 +#define SYN_QUE_MODES 0x01 +#define SYN_QUE_CAPABILITIES 0x02 +#define SYN_QUE_MODEL 0x03 +#define SYN_QUE_SERIAL_NUMBER_PREFIX 0x06 +#define SYN_QUE_SERIAL_NUMBER_SUFFIX 0x07 +#define SYN_QUE_RESOLUTION 0x08 +#define SYN_QUE_EXT_CAPAB 0x09 +#define SYN_QUE_FIRMWARE_ID 0x0a +#define SYN_QUE_EXT_CAPAB_0C 0x0c +#define SYN_QUE_EXT_MAX_COORDS 0x0d +#define SYN_QUE_EXT_MIN_COORDS 0x0f +#define SYN_QUE_MEXT_CAPAB_10 0x10 + +/* synatics modes */ +#define SYN_BIT_ABSOLUTE_MODE BIT(7) +#define SYN_BIT_HIGH_RATE BIT(6) +#define SYN_BIT_SLEEP_MODE BIT(3) +#define SYN_BIT_DISABLE_GESTURE BIT(2) +#define SYN_BIT_FOUR_BYTE_CLIENT BIT(1) +#define SYN_BIT_W_MODE BIT(0) + +/* synaptics model ID bits */ +#define SYN_MODEL_ROT180(m) ((m) & BIT(23)) +#define SYN_MODEL_PORTRAIT(m) ((m) & BIT(22)) +#define SYN_MODEL_SENSOR(m) (((m) & GENMASK(21, 16)) >> 16) +#define SYN_MODEL_HARDWARE(m) (((m) & GENMASK(15, 9)) >> 9) +#define SYN_MODEL_NEWABS(m) ((m) & BIT(7)) +#define SYN_MODEL_PEN(m) ((m) & BIT(6)) +#define SYN_MODEL_SIMPLIC(m) ((m) & BIT(5)) +#define SYN_MODEL_GEOMETRY(m) ((m) & GENMASK(3, 0)) + +/* synaptics capability bits */ +#define SYN_CAP_EXTENDED(c) ((c) & BIT(23)) +#define SYN_CAP_MIDDLE_BUTTON(c) ((c) & BIT(18)) +#define SYN_CAP_PASS_THROUGH(c) ((c) & BIT(7)) +#define SYN_CAP_SLEEP(c) ((c) & BIT(4)) +#define SYN_CAP_FOUR_BUTTON(c) ((c) & BIT(3)) +#define SYN_CAP_MULTIFINGER(c) ((c) & BIT(1)) +#define SYN_CAP_PALMDETECT(c) ((c) & BIT(0)) +#define SYN_CAP_SUBMODEL_ID(c) (((c) & GENMASK(15, 8)) >> 8) +#define SYN_EXT_CAP_REQUESTS(c) (((c) & GENMASK(22, 20)) >> 20) +#define SYN_CAP_MB_MASK GENMASK(15, 12) +#define SYN_CAP_MULTI_BUTTON_NO(ec) (((ec) & SYN_CAP_MB_MASK) >> 12) +#define SYN_CAP_PRODUCT_ID(ec) (((ec) & GENMASK(23, 16)) >> 16) +#define SYN_MEXT_CAP_BIT(m) ((m) & BIT(1)) + +/* + * The following describes response for the 0x0c query. + * + * byte mask name meaning + * ---- ---- ------- ------------ + * 1 0x01 adjustable threshold capacitive button sensitivity + * can be adjusted + * 1 0x02 report max query 0x0d gives max coord reported + * 1 0x04 clearpad sensor is ClearPad product + * 1 0x08 advanced gesture not particularly meaningful + * 1 0x10 clickpad bit 0 1-button ClickPad + * 1 0x60 multifinger mode identifies firmware finger counting + * (not reporting!) algorithm. + * Not particularly meaningful + * 1 0x80 covered pad W clipped to 14, 15 == pad mostly covered + * 2 0x01 clickpad bit 1 2-button ClickPad + * 2 0x02 deluxe LED controls touchpad support LED commands + * ala multimedia control bar + * 2 0x04 reduced filtering firmware does less filtering on + * position data, driver should watch + * for noise. + * 2 0x08 image sensor image sensor tracks 5 fingers, but only + * reports 2. + * 2 0x01 uniform clickpad whole clickpad moves instead of being + * hinged at the top. + * 2 0x20 report min query 0x0f gives min coord reported + */ +#define SYN_CAP_CLICKPAD(ex0c) ((ex0c) & BIT(20)) /* 1-button ClickPad */ +#define SYN_CAP_CLICKPAD2BTN(ex0c) ((ex0c) & BIT(8)) /* 2-button ClickPad */ +#define SYN_CAP_MAX_DIMENSIONS(ex0c) ((ex0c) & BIT(17)) +#define SYN_CAP_MIN_DIMENSIONS(ex0c) ((ex0c) & BIT(13)) +#define SYN_CAP_ADV_GESTURE(ex0c) ((ex0c) & BIT(19)) +#define SYN_CAP_REDUCED_FILTERING(ex0c) ((ex0c) & BIT(10)) +#define SYN_CAP_IMAGE_SENSOR(ex0c) ((ex0c) & BIT(11)) +#define SYN_CAP_INTERTOUCH(ex0c) ((ex0c) & BIT(14)) + +/* + * The following descibes response for the 0x10 query. + * + * byte mask name meaning + * ---- ---- ------- ------------ + * 1 0x01 ext buttons are stick buttons exported in the extended + * capability are actually meant to be used + * by the tracktick (pass-through). + * 1 0x02 SecurePad the touchpad is a SecurePad, so it + * contains a built-in fingerprint reader. + * 1 0xe0 more ext count how many more extented queries are + * available after this one. + * 2 0xff SecurePad width the width of the SecurePad fingerprint + * reader. + * 3 0xff SecurePad height the height of the SecurePad fingerprint + * reader. + */ +#define SYN_CAP_EXT_BUTTONS_STICK(ex10) ((ex10) & BIT(16)) +#define SYN_CAP_SECUREPAD(ex10) ((ex10) & BIT(17)) + +#define SYN_EXT_BUTTON_STICK_L(eb) (((eb) & BIT(0)) >> 0) +#define SYN_EXT_BUTTON_STICK_M(eb) (((eb) & BIT(1)) >> 1) +#define SYN_EXT_BUTTON_STICK_R(eb) (((eb) & BIT(2)) >> 2) + +/* synaptics modes query bits */ +#define SYN_MODE_ABSOLUTE(m) ((m) & BIT(7)) +#define SYN_MODE_RATE(m) ((m) & BIT(6)) +#define SYN_MODE_BAUD_SLEEP(m) ((m) & BIT(3)) +#define SYN_MODE_DISABLE_GESTURE(m) ((m) & BIT(2)) +#define SYN_MODE_PACKSIZE(m) ((m) & BIT(1)) +#define SYN_MODE_WMODE(m) ((m) & BIT(0)) + +/* synaptics identify query bits */ +#define SYN_ID_MODEL(i) (((i) & GENMASK(7, 4)) >> 4) +#define SYN_ID_MAJOR(i) (((i) & GENMASK(3, 0)) >> 0) +#define SYN_ID_MINOR(i) (((i) & GENMASK(23, 16)) >> 16) +#define SYN_ID_FULL(i) ((SYN_ID_MAJOR(i) << 8) | SYN_ID_MINOR(i)) +#define SYN_ID_IS_SYNAPTICS(i) (((i) & GENMASK(15, 8)) == 0x004700U) +#define SYN_ID_DISGEST_SUPPORTED(i) (SYN_ID_MAJOR(i) >= 4) + +/* synaptics special commands */ +#define SYN_PS_SET_MODE2 0x14 +#define SYN_PS_CLIENT_CMD 0x28 + +/* amount to fuzz position data when touchpad reports reduced filtering */ +#define SYN_REDUCED_FILTER_FUZZ 8 + +/* synaptics packet types */ +enum synaptics_pkt_type { + SYN_NEWABS, + SYN_NEWABS_STRICT, + SYN_NEWABS_RELAXED, + SYN_OLDABS, +}; + +/* + * A structure to describe the state of the touchpad hardware (buttons and pad) + */ +struct synaptics_hw_state { + int x; + int y; + int z; + int w; + unsigned int left:1; + unsigned int right:1; + unsigned int middle:1; + unsigned int up:1; + unsigned int down:1; + u8 ext_buttons; + s8 scroll; +}; + +/* Data read from the touchpad */ +struct synaptics_device_info { + u32 model_id; /* Model-ID */ + u32 firmware_id; /* Firmware-ID */ + u32 board_id; /* Board-ID */ + u32 capabilities; /* Capabilities */ + u32 ext_cap; /* Extended Capabilities */ + u32 ext_cap_0c; /* Ext Caps from 0x0c query */ + u32 ext_cap_10; /* Ext Caps from 0x10 query */ + u32 identity; /* Identification */ + u32 x_res, y_res; /* X/Y resolution in units/mm */ + u32 x_max, y_max; /* Max coordinates (from FW) */ + u32 x_min, y_min; /* Min coordinates (from FW) */ +}; + +struct synaptics_data { + struct synaptics_device_info info; + + enum synaptics_pkt_type pkt_type; /* packet type - old, new, etc */ + u8 mode; /* current mode byte */ + int scroll; + + bool absolute_mode; /* run in Absolute mode */ + bool disable_gesture; /* disable gestures */ + + struct serio *pt_port; /* Pass-through serio port */ + + /* + * Last received Advanced Gesture Mode (AGM) packet. An AGM packet + * contains position data for a second contact, at half resolution. + */ + struct synaptics_hw_state agm; + unsigned int agm_count; /* finger count reported by agm */ + + /* ForcePad handling */ + unsigned long press_start; + bool press; + bool report_press; + bool is_forcepad; +}; + +void synaptics_module_init(void); +int synaptics_detect(struct psmouse *psmouse, bool set_properties); +int synaptics_init_absolute(struct psmouse *psmouse); +int synaptics_init_relative(struct psmouse *psmouse); +int synaptics_init_smbus(struct psmouse *psmouse); +int synaptics_init(struct psmouse *psmouse); +void synaptics_reset(struct psmouse *psmouse); + +#endif /* _SYNAPTICS_H */ |