Merge branch 'next' into for-linus
Prepare first set of updates for 3.9 merge window.
This commit is contained in:
Dmitry Torokhov
@@ -68,6 +68,16 @@ config MOUSE_PS2_SYNAPTICS
|
||||
|
||||
If unsure, say Y.
|
||||
|
||||
config MOUSE_PS2_CYPRESS
|
||||
bool "Cypress PS/2 mouse protocol extension" if EXPERT
|
||||
default y
|
||||
depends on MOUSE_PS2
|
||||
help
|
||||
Say Y here if you have a Cypress PS/2 Trackpad connected to
|
||||
your system.
|
||||
|
||||
If unsure, say Y.
|
||||
|
||||
config MOUSE_PS2_LIFEBOOK
|
||||
bool "Fujitsu Lifebook PS/2 mouse protocol extension" if EXPERT
|
||||
default y
|
||||
@@ -193,6 +203,18 @@ config MOUSE_BCM5974
|
||||
To compile this driver as a module, choose M here: the
|
||||
module will be called bcm5974.
|
||||
|
||||
config MOUSE_CYAPA
|
||||
tristate "Cypress APA I2C Trackpad support"
|
||||
depends on I2C
|
||||
help
|
||||
This driver adds support for Cypress All Points Addressable (APA)
|
||||
I2C Trackpads, including the ones used in 2012 Samsung Chromebooks.
|
||||
|
||||
Say Y here if you have a Cypress APA I2C Trackpad.
|
||||
|
||||
To compile this driver as a module, choose M here: the module will be
|
||||
called cyapa.
|
||||
|
||||
config MOUSE_INPORT
|
||||
tristate "InPort/MS/ATIXL busmouse"
|
||||
depends on ISA
|
||||
|
||||
@@ -8,6 +8,7 @@ obj-$(CONFIG_MOUSE_AMIGA) += amimouse.o
|
||||
obj-$(CONFIG_MOUSE_APPLETOUCH) += appletouch.o
|
||||
obj-$(CONFIG_MOUSE_ATARI) += atarimouse.o
|
||||
obj-$(CONFIG_MOUSE_BCM5974) += bcm5974.o
|
||||
obj-$(CONFIG_MOUSE_CYAPA) += cyapa.o
|
||||
obj-$(CONFIG_MOUSE_GPIO) += gpio_mouse.o
|
||||
obj-$(CONFIG_MOUSE_INPORT) += inport.o
|
||||
obj-$(CONFIG_MOUSE_LOGIBM) += logibm.o
|
||||
@@ -32,3 +33,4 @@ psmouse-$(CONFIG_MOUSE_PS2_LIFEBOOK) += lifebook.o
|
||||
psmouse-$(CONFIG_MOUSE_PS2_SENTELIC) += sentelic.o
|
||||
psmouse-$(CONFIG_MOUSE_PS2_TRACKPOINT) += trackpoint.o
|
||||
psmouse-$(CONFIG_MOUSE_PS2_TOUCHKIT) += touchkit_ps2.o
|
||||
psmouse-$(CONFIG_MOUSE_PS2_CYPRESS) += cypress_ps2.o
|
||||
|
||||
Filskillnaden har hållits tillbaka eftersom den är för stor
Load Diff
@@ -12,35 +12,146 @@
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||||
#ifndef _ALPS_H
|
||||
#define _ALPS_H
|
||||
|
||||
#define ALPS_PROTO_V1 0
|
||||
#define ALPS_PROTO_V2 1
|
||||
#define ALPS_PROTO_V3 2
|
||||
#define ALPS_PROTO_V4 3
|
||||
#define ALPS_PROTO_V1 1
|
||||
#define ALPS_PROTO_V2 2
|
||||
#define ALPS_PROTO_V3 3
|
||||
#define ALPS_PROTO_V4 4
|
||||
|
||||
/**
|
||||
* struct alps_model_info - touchpad ID table
|
||||
* @signature: E7 response string to match.
|
||||
* @command_mode_resp: For V3/V4 touchpads, the final byte of the EC response
|
||||
* (aka command mode response) identifies the firmware minor version. This
|
||||
* can be used to distinguish different hardware models which are not
|
||||
* uniquely identifiable through their E7 responses.
|
||||
* @proto_version: Indicates V1/V2/V3/...
|
||||
* @byte0: Helps figure out whether a position report packet matches the
|
||||
* known format for this model. The first byte of the report, ANDed with
|
||||
* mask0, should match byte0.
|
||||
* @mask0: The mask used to check the first byte of the report.
|
||||
* @flags: Additional device capabilities (passthrough port, trackstick, etc.).
|
||||
*
|
||||
* Many (but not all) ALPS touchpads can be identified by looking at the
|
||||
* values returned in the "E7 report" and/or the "EC report." This table
|
||||
* lists a number of such touchpads.
|
||||
*/
|
||||
struct alps_model_info {
|
||||
unsigned char signature[3];
|
||||
unsigned char command_mode_resp; /* v3/v4 only */
|
||||
unsigned char signature[3];
|
||||
unsigned char command_mode_resp;
|
||||
unsigned char proto_version;
|
||||
unsigned char byte0, mask0;
|
||||
unsigned char flags;
|
||||
unsigned char byte0, mask0;
|
||||
unsigned char flags;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct alps_nibble_commands - encodings for register accesses
|
||||
* @command: PS/2 command used for the nibble
|
||||
* @data: Data supplied as an argument to the PS/2 command, if applicable
|
||||
*
|
||||
* The ALPS protocol uses magic sequences to transmit binary data to the
|
||||
* touchpad, as it is generally not OK to send arbitrary bytes out the
|
||||
* PS/2 port. Each of the sequences in this table sends one nibble of the
|
||||
* register address or (write) data. Different versions of the ALPS protocol
|
||||
* use slightly different encodings.
|
||||
*/
|
||||
struct alps_nibble_commands {
|
||||
int command;
|
||||
unsigned char data;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct alps_fields - decoded version of the report packet
|
||||
* @x_map: Bitmap of active X positions for MT.
|
||||
* @y_map: Bitmap of active Y positions for MT.
|
||||
* @fingers: Number of fingers for MT.
|
||||
* @x: X position for ST.
|
||||
* @y: Y position for ST.
|
||||
* @z: Z position for ST.
|
||||
* @first_mp: Packet is the first of a multi-packet report.
|
||||
* @is_mp: Packet is part of a multi-packet report.
|
||||
* @left: Left touchpad button is active.
|
||||
* @right: Right touchpad button is active.
|
||||
* @middle: Middle touchpad button is active.
|
||||
* @ts_left: Left trackstick button is active.
|
||||
* @ts_right: Right trackstick button is active.
|
||||
* @ts_middle: Middle trackstick button is active.
|
||||
*/
|
||||
struct alps_fields {
|
||||
unsigned int x_map;
|
||||
unsigned int y_map;
|
||||
unsigned int fingers;
|
||||
unsigned int x;
|
||||
unsigned int y;
|
||||
unsigned int z;
|
||||
unsigned int first_mp:1;
|
||||
unsigned int is_mp:1;
|
||||
|
||||
unsigned int left:1;
|
||||
unsigned int right:1;
|
||||
unsigned int middle:1;
|
||||
|
||||
unsigned int ts_left:1;
|
||||
unsigned int ts_right:1;
|
||||
unsigned int ts_middle:1;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct alps_data - private data structure for the ALPS driver
|
||||
* @dev2: "Relative" device used to report trackstick or mouse activity.
|
||||
* @phys: Physical path for the relative device.
|
||||
* @nibble_commands: Command mapping used for touchpad register accesses.
|
||||
* @addr_command: Command used to tell the touchpad that a register address
|
||||
* follows.
|
||||
* @proto_version: Indicates V1/V2/V3/...
|
||||
* @byte0: Helps figure out whether a position report packet matches the
|
||||
* known format for this model. The first byte of the report, ANDed with
|
||||
* mask0, should match byte0.
|
||||
* @mask0: The mask used to check the first byte of the report.
|
||||
* @flags: Additional device capabilities (passthrough port, trackstick, etc.).
|
||||
* @x_max: Largest possible X position value.
|
||||
* @y_max: Largest possible Y position value.
|
||||
* @x_bits: Number of X bits in the MT bitmap.
|
||||
* @y_bits: Number of Y bits in the MT bitmap.
|
||||
* @hw_init: Protocol-specific hardware init function.
|
||||
* @process_packet: Protocol-specific function to process a report packet.
|
||||
* @decode_fields: Protocol-specific function to read packet bitfields.
|
||||
* @set_abs_params: Protocol-specific function to configure the input_dev.
|
||||
* @prev_fin: Finger bit from previous packet.
|
||||
* @multi_packet: Multi-packet data in progress.
|
||||
* @multi_data: Saved multi-packet data.
|
||||
* @x1: First X coordinate from last MT report.
|
||||
* @x2: Second X coordinate from last MT report.
|
||||
* @y1: First Y coordinate from last MT report.
|
||||
* @y2: Second Y coordinate from last MT report.
|
||||
* @fingers: Number of fingers from last MT report.
|
||||
* @quirks: Bitmap of ALPS_QUIRK_*.
|
||||
* @timer: Timer for flushing out the final report packet in the stream.
|
||||
*/
|
||||
struct alps_data {
|
||||
struct input_dev *dev2; /* Relative device */
|
||||
char phys[32]; /* Phys */
|
||||
const struct alps_model_info *i;/* Info */
|
||||
struct input_dev *dev2;
|
||||
char phys[32];
|
||||
|
||||
/* these are autodetected when the device is identified */
|
||||
const struct alps_nibble_commands *nibble_commands;
|
||||
int addr_command; /* Command to set register address */
|
||||
int prev_fin; /* Finger bit from previous packet */
|
||||
int multi_packet; /* Multi-packet data in progress */
|
||||
unsigned char multi_data[6]; /* Saved multi-packet data */
|
||||
int x1, x2, y1, y2; /* Coordinates from last MT report */
|
||||
int fingers; /* Number of fingers from MT report */
|
||||
int addr_command;
|
||||
unsigned char proto_version;
|
||||
unsigned char byte0, mask0;
|
||||
unsigned char flags;
|
||||
int x_max;
|
||||
int y_max;
|
||||
int x_bits;
|
||||
int y_bits;
|
||||
|
||||
int (*hw_init)(struct psmouse *psmouse);
|
||||
void (*process_packet)(struct psmouse *psmouse);
|
||||
void (*decode_fields)(struct alps_fields *f, unsigned char *p);
|
||||
void (*set_abs_params)(struct alps_data *priv, struct input_dev *dev1);
|
||||
|
||||
int prev_fin;
|
||||
int multi_packet;
|
||||
unsigned char multi_data[6];
|
||||
int x1, x2, y1, y2;
|
||||
int fingers;
|
||||
u8 quirks;
|
||||
struct timer_list timer;
|
||||
};
|
||||
|
||||
973
drivers/input/mouse/cyapa.c
Normal file
973
drivers/input/mouse/cyapa.c
Normal file
@@ -0,0 +1,973 @@
|
||||
/*
|
||||
* Cypress APA trackpad with I2C interface
|
||||
*
|
||||
* Author: Dudley Du <dudl@cypress.com>
|
||||
* Further cleanup and restructuring by:
|
||||
* Daniel Kurtz <djkurtz@chromium.org>
|
||||
* Benson Leung <bleung@chromium.org>
|
||||
*
|
||||
* Copyright (C) 2011-2012 Cypress Semiconductor, Inc.
|
||||
* Copyright (C) 2011-2012 Google, Inc.
|
||||
*
|
||||
* This file is subject to the terms and conditions of the GNU General Public
|
||||
* License. See the file COPYING in the main directory of this archive for
|
||||
* more details.
|
||||
*/
|
||||
|
||||
#include <linux/delay.h>
|
||||
#include <linux/i2c.h>
|
||||
#include <linux/input.h>
|
||||
#include <linux/input/mt.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/slab.h>
|
||||
|
||||
/* APA trackpad firmware generation */
|
||||
#define CYAPA_GEN3 0x03 /* support MT-protocol B with tracking ID. */
|
||||
|
||||
#define CYAPA_NAME "Cypress APA Trackpad (cyapa)"
|
||||
|
||||
/* commands for read/write registers of Cypress trackpad */
|
||||
#define CYAPA_CMD_SOFT_RESET 0x00
|
||||
#define CYAPA_CMD_POWER_MODE 0x01
|
||||
#define CYAPA_CMD_DEV_STATUS 0x02
|
||||
#define CYAPA_CMD_GROUP_DATA 0x03
|
||||
#define CYAPA_CMD_GROUP_CMD 0x04
|
||||
#define CYAPA_CMD_GROUP_QUERY 0x05
|
||||
#define CYAPA_CMD_BL_STATUS 0x06
|
||||
#define CYAPA_CMD_BL_HEAD 0x07
|
||||
#define CYAPA_CMD_BL_CMD 0x08
|
||||
#define CYAPA_CMD_BL_DATA 0x09
|
||||
#define CYAPA_CMD_BL_ALL 0x0a
|
||||
#define CYAPA_CMD_BLK_PRODUCT_ID 0x0b
|
||||
#define CYAPA_CMD_BLK_HEAD 0x0c
|
||||
|
||||
/* report data start reg offset address. */
|
||||
#define DATA_REG_START_OFFSET 0x0000
|
||||
|
||||
#define BL_HEAD_OFFSET 0x00
|
||||
#define BL_DATA_OFFSET 0x10
|
||||
|
||||
/*
|
||||
* Operational Device Status Register
|
||||
*
|
||||
* bit 7: Valid interrupt source
|
||||
* bit 6 - 4: Reserved
|
||||
* bit 3 - 2: Power status
|
||||
* bit 1 - 0: Device status
|
||||
*/
|
||||
#define REG_OP_STATUS 0x00
|
||||
#define OP_STATUS_SRC 0x80
|
||||
#define OP_STATUS_POWER 0x0c
|
||||
#define OP_STATUS_DEV 0x03
|
||||
#define OP_STATUS_MASK (OP_STATUS_SRC | OP_STATUS_POWER | OP_STATUS_DEV)
|
||||
|
||||
/*
|
||||
* Operational Finger Count/Button Flags Register
|
||||
*
|
||||
* bit 7 - 4: Number of touched finger
|
||||
* bit 3: Valid data
|
||||
* bit 2: Middle Physical Button
|
||||
* bit 1: Right Physical Button
|
||||
* bit 0: Left physical Button
|
||||
*/
|
||||
#define REG_OP_DATA1 0x01
|
||||
#define OP_DATA_VALID 0x08
|
||||
#define OP_DATA_MIDDLE_BTN 0x04
|
||||
#define OP_DATA_RIGHT_BTN 0x02
|
||||
#define OP_DATA_LEFT_BTN 0x01
|
||||
#define OP_DATA_BTN_MASK (OP_DATA_MIDDLE_BTN | OP_DATA_RIGHT_BTN | \
|
||||
OP_DATA_LEFT_BTN)
|
||||
|
||||
/*
|
||||
* Bootloader Status Register
|
||||
*
|
||||
* bit 7: Busy
|
||||
* bit 6 - 5: Reserved
|
||||
* bit 4: Bootloader running
|
||||
* bit 3 - 1: Reserved
|
||||
* bit 0: Checksum valid
|
||||
*/
|
||||
#define REG_BL_STATUS 0x01
|
||||
#define BL_STATUS_BUSY 0x80
|
||||
#define BL_STATUS_RUNNING 0x10
|
||||
#define BL_STATUS_DATA_VALID 0x08
|
||||
#define BL_STATUS_CSUM_VALID 0x01
|
||||
|
||||
/*
|
||||
* Bootloader Error Register
|
||||
*
|
||||
* bit 7: Invalid
|
||||
* bit 6: Invalid security key
|
||||
* bit 5: Bootloading
|
||||
* bit 4: Command checksum
|
||||
* bit 3: Flash protection error
|
||||
* bit 2: Flash checksum error
|
||||
* bit 1 - 0: Reserved
|
||||
*/
|
||||
#define REG_BL_ERROR 0x02
|
||||
#define BL_ERROR_INVALID 0x80
|
||||
#define BL_ERROR_INVALID_KEY 0x40
|
||||
#define BL_ERROR_BOOTLOADING 0x20
|
||||
#define BL_ERROR_CMD_CSUM 0x10
|
||||
#define BL_ERROR_FLASH_PROT 0x08
|
||||
#define BL_ERROR_FLASH_CSUM 0x04
|
||||
|
||||
#define BL_STATUS_SIZE 3 /* length of bootloader status registers */
|
||||
#define BLK_HEAD_BYTES 32
|
||||
|
||||
#define PRODUCT_ID_SIZE 16
|
||||
#define QUERY_DATA_SIZE 27
|
||||
#define REG_PROTOCOL_GEN_QUERY_OFFSET 20
|
||||
|
||||
#define REG_OFFSET_DATA_BASE 0x0000
|
||||
#define REG_OFFSET_COMMAND_BASE 0x0028
|
||||
#define REG_OFFSET_QUERY_BASE 0x002a
|
||||
|
||||
#define CAPABILITY_LEFT_BTN_MASK (0x01 << 3)
|
||||
#define CAPABILITY_RIGHT_BTN_MASK (0x01 << 4)
|
||||
#define CAPABILITY_MIDDLE_BTN_MASK (0x01 << 5)
|
||||
#define CAPABILITY_BTN_MASK (CAPABILITY_LEFT_BTN_MASK | \
|
||||
CAPABILITY_RIGHT_BTN_MASK | \
|
||||
CAPABILITY_MIDDLE_BTN_MASK)
|
||||
|
||||
#define CYAPA_OFFSET_SOFT_RESET REG_OFFSET_COMMAND_BASE
|
||||
|
||||
#define REG_OFFSET_POWER_MODE (REG_OFFSET_COMMAND_BASE + 1)
|
||||
|
||||
#define PWR_MODE_MASK 0xfc
|
||||
#define PWR_MODE_FULL_ACTIVE (0x3f << 2)
|
||||
#define PWR_MODE_IDLE (0x05 << 2) /* default sleep time is 50 ms. */
|
||||
#define PWR_MODE_OFF (0x00 << 2)
|
||||
|
||||
#define PWR_STATUS_MASK 0x0c
|
||||
#define PWR_STATUS_ACTIVE (0x03 << 2)
|
||||
#define PWR_STATUS_IDLE (0x02 << 2)
|
||||
#define PWR_STATUS_OFF (0x00 << 2)
|
||||
|
||||
/*
|
||||
* CYAPA trackpad device states.
|
||||
* Used in register 0x00, bit1-0, DeviceStatus field.
|
||||
* Other values indicate device is in an abnormal state and must be reset.
|
||||
*/
|
||||
#define CYAPA_DEV_NORMAL 0x03
|
||||
#define CYAPA_DEV_BUSY 0x01
|
||||
|
||||
enum cyapa_state {
|
||||
CYAPA_STATE_OP,
|
||||
CYAPA_STATE_BL_IDLE,
|
||||
CYAPA_STATE_BL_ACTIVE,
|
||||
CYAPA_STATE_BL_BUSY,
|
||||
CYAPA_STATE_NO_DEVICE,
|
||||
};
|
||||
|
||||
|
||||
struct cyapa_touch {
|
||||
/*
|
||||
* high bits or x/y position value
|
||||
* bit 7 - 4: high 4 bits of x position value
|
||||
* bit 3 - 0: high 4 bits of y position value
|
||||
*/
|
||||
u8 xy_hi;
|
||||
u8 x_lo; /* low 8 bits of x position value. */
|
||||
u8 y_lo; /* low 8 bits of y position value. */
|
||||
u8 pressure;
|
||||
/* id range is 1 - 15. It is incremented with every new touch. */
|
||||
u8 id;
|
||||
} __packed;
|
||||
|
||||
/* The touch.id is used as the MT slot id, thus max MT slot is 15 */
|
||||
#define CYAPA_MAX_MT_SLOTS 15
|
||||
|
||||
struct cyapa_reg_data {
|
||||
/*
|
||||
* bit 0 - 1: device status
|
||||
* bit 3 - 2: power mode
|
||||
* bit 6 - 4: reserved
|
||||
* bit 7: interrupt valid bit
|
||||
*/
|
||||
u8 device_status;
|
||||
/*
|
||||
* bit 7 - 4: number of fingers currently touching pad
|
||||
* bit 3: valid data check bit
|
||||
* bit 2: middle mechanism button state if exists
|
||||
* bit 1: right mechanism button state if exists
|
||||
* bit 0: left mechanism button state if exists
|
||||
*/
|
||||
u8 finger_btn;
|
||||
/* CYAPA reports up to 5 touches per packet. */
|
||||
struct cyapa_touch touches[5];
|
||||
} __packed;
|
||||
|
||||
/* The main device structure */
|
||||
struct cyapa {
|
||||
enum cyapa_state state;
|
||||
|
||||
struct i2c_client *client;
|
||||
struct input_dev *input;
|
||||
char phys[32]; /* device physical location */
|
||||
int irq;
|
||||
bool irq_wake; /* irq wake is enabled */
|
||||
bool smbus;
|
||||
|
||||
/* read from query data region. */
|
||||
char product_id[16];
|
||||
u8 btn_capability;
|
||||
u8 gen;
|
||||
int max_abs_x;
|
||||
int max_abs_y;
|
||||
int physical_size_x;
|
||||
int physical_size_y;
|
||||
};
|
||||
|
||||
static const u8 bl_deactivate[] = { 0x00, 0xff, 0x3b, 0x00, 0x01, 0x02, 0x03,
|
||||
0x04, 0x05, 0x06, 0x07 };
|
||||
static const u8 bl_exit[] = { 0x00, 0xff, 0xa5, 0x00, 0x01, 0x02, 0x03, 0x04,
|
||||
0x05, 0x06, 0x07 };
|
||||
|
||||
struct cyapa_cmd_len {
|
||||
u8 cmd;
|
||||
u8 len;
|
||||
};
|
||||
|
||||
#define CYAPA_ADAPTER_FUNC_NONE 0
|
||||
#define CYAPA_ADAPTER_FUNC_I2C 1
|
||||
#define CYAPA_ADAPTER_FUNC_SMBUS 2
|
||||
#define CYAPA_ADAPTER_FUNC_BOTH 3
|
||||
|
||||
/*
|
||||
* macros for SMBus communication
|
||||
*/
|
||||
#define SMBUS_READ 0x01
|
||||
#define SMBUS_WRITE 0x00
|
||||
#define SMBUS_ENCODE_IDX(cmd, idx) ((cmd) | (((idx) & 0x03) << 1))
|
||||
#define SMBUS_ENCODE_RW(cmd, rw) ((cmd) | ((rw) & 0x01))
|
||||
#define SMBUS_BYTE_BLOCK_CMD_MASK 0x80
|
||||
#define SMBUS_GROUP_BLOCK_CMD_MASK 0x40
|
||||
|
||||
/* for byte read/write command */
|
||||
#define CMD_RESET 0
|
||||
#define CMD_POWER_MODE 1
|
||||
#define CMD_DEV_STATUS 2
|
||||
#define SMBUS_BYTE_CMD(cmd) (((cmd) & 0x3f) << 1)
|
||||
#define CYAPA_SMBUS_RESET SMBUS_BYTE_CMD(CMD_RESET)
|
||||
#define CYAPA_SMBUS_POWER_MODE SMBUS_BYTE_CMD(CMD_POWER_MODE)
|
||||
#define CYAPA_SMBUS_DEV_STATUS SMBUS_BYTE_CMD(CMD_DEV_STATUS)
|
||||
|
||||
/* for group registers read/write command */
|
||||
#define REG_GROUP_DATA 0
|
||||
#define REG_GROUP_CMD 2
|
||||
#define REG_GROUP_QUERY 3
|
||||
#define SMBUS_GROUP_CMD(grp) (0x80 | (((grp) & 0x07) << 3))
|
||||
#define CYAPA_SMBUS_GROUP_DATA SMBUS_GROUP_CMD(REG_GROUP_DATA)
|
||||
#define CYAPA_SMBUS_GROUP_CMD SMBUS_GROUP_CMD(REG_GROUP_CMD)
|
||||
#define CYAPA_SMBUS_GROUP_QUERY SMBUS_GROUP_CMD(REG_GROUP_QUERY)
|
||||
|
||||
/* for register block read/write command */
|
||||
#define CMD_BL_STATUS 0
|
||||
#define CMD_BL_HEAD 1
|
||||
#define CMD_BL_CMD 2
|
||||
#define CMD_BL_DATA 3
|
||||
#define CMD_BL_ALL 4
|
||||
#define CMD_BLK_PRODUCT_ID 5
|
||||
#define CMD_BLK_HEAD 6
|
||||
#define SMBUS_BLOCK_CMD(cmd) (0xc0 | (((cmd) & 0x1f) << 1))
|
||||
|
||||
/* register block read/write command in bootloader mode */
|
||||
#define CYAPA_SMBUS_BL_STATUS SMBUS_BLOCK_CMD(CMD_BL_STATUS)
|
||||
#define CYAPA_SMBUS_BL_HEAD SMBUS_BLOCK_CMD(CMD_BL_HEAD)
|
||||
#define CYAPA_SMBUS_BL_CMD SMBUS_BLOCK_CMD(CMD_BL_CMD)
|
||||
#define CYAPA_SMBUS_BL_DATA SMBUS_BLOCK_CMD(CMD_BL_DATA)
|
||||
#define CYAPA_SMBUS_BL_ALL SMBUS_BLOCK_CMD(CMD_BL_ALL)
|
||||
|
||||
/* register block read/write command in operational mode */
|
||||
#define CYAPA_SMBUS_BLK_PRODUCT_ID SMBUS_BLOCK_CMD(CMD_BLK_PRODUCT_ID)
|
||||
#define CYAPA_SMBUS_BLK_HEAD SMBUS_BLOCK_CMD(CMD_BLK_HEAD)
|
||||
|
||||
static const struct cyapa_cmd_len cyapa_i2c_cmds[] = {
|
||||
{ CYAPA_OFFSET_SOFT_RESET, 1 },
|
||||
{ REG_OFFSET_COMMAND_BASE + 1, 1 },
|
||||
{ REG_OFFSET_DATA_BASE, 1 },
|
||||
{ REG_OFFSET_DATA_BASE, sizeof(struct cyapa_reg_data) },
|
||||
{ REG_OFFSET_COMMAND_BASE, 0 },
|
||||
{ REG_OFFSET_QUERY_BASE, QUERY_DATA_SIZE },
|
||||
{ BL_HEAD_OFFSET, 3 },
|
||||
{ BL_HEAD_OFFSET, 16 },
|
||||
{ BL_HEAD_OFFSET, 16 },
|
||||
{ BL_DATA_OFFSET, 16 },
|
||||
{ BL_HEAD_OFFSET, 32 },
|
||||
{ REG_OFFSET_QUERY_BASE, PRODUCT_ID_SIZE },
|
||||
{ REG_OFFSET_DATA_BASE, 32 }
|
||||
};
|
||||
|
||||
static const struct cyapa_cmd_len cyapa_smbus_cmds[] = {
|
||||
{ CYAPA_SMBUS_RESET, 1 },
|
||||
{ CYAPA_SMBUS_POWER_MODE, 1 },
|
||||
{ CYAPA_SMBUS_DEV_STATUS, 1 },
|
||||
{ CYAPA_SMBUS_GROUP_DATA, sizeof(struct cyapa_reg_data) },
|
||||
{ CYAPA_SMBUS_GROUP_CMD, 2 },
|
||||
{ CYAPA_SMBUS_GROUP_QUERY, QUERY_DATA_SIZE },
|
||||
{ CYAPA_SMBUS_BL_STATUS, 3 },
|
||||
{ CYAPA_SMBUS_BL_HEAD, 16 },
|
||||
{ CYAPA_SMBUS_BL_CMD, 16 },
|
||||
{ CYAPA_SMBUS_BL_DATA, 16 },
|
||||
{ CYAPA_SMBUS_BL_ALL, 32 },
|
||||
{ CYAPA_SMBUS_BLK_PRODUCT_ID, PRODUCT_ID_SIZE },
|
||||
{ CYAPA_SMBUS_BLK_HEAD, 16 },
|
||||
};
|
||||
|
||||
static ssize_t cyapa_i2c_reg_read_block(struct cyapa *cyapa, u8 reg, size_t len,
|
||||
u8 *values)
|
||||
{
|
||||
return i2c_smbus_read_i2c_block_data(cyapa->client, reg, len, values);
|
||||
}
|
||||
|
||||
static ssize_t cyapa_i2c_reg_write_block(struct cyapa *cyapa, u8 reg,
|
||||
size_t len, const u8 *values)
|
||||
{
|
||||
return i2c_smbus_write_i2c_block_data(cyapa->client, reg, len, values);
|
||||
}
|
||||
|
||||
/*
|
||||
* cyapa_smbus_read_block - perform smbus block read command
|
||||
* @cyapa - private data structure of the driver
|
||||
* @cmd - the properly encoded smbus command
|
||||
* @len - expected length of smbus command result
|
||||
* @values - buffer to store smbus command result
|
||||
*
|
||||
* Returns negative errno, else the number of bytes written.
|
||||
*
|
||||
* Note:
|
||||
* In trackpad device, the memory block allocated for I2C register map
|
||||
* is 256 bytes, so the max read block for I2C bus is 256 bytes.
|
||||
*/
|
||||
static ssize_t cyapa_smbus_read_block(struct cyapa *cyapa, u8 cmd, size_t len,
|
||||
u8 *values)
|
||||
{
|
||||
ssize_t ret;
|
||||
u8 index;
|
||||
u8 smbus_cmd;
|
||||
u8 *buf;
|
||||
struct i2c_client *client = cyapa->client;
|
||||
|
||||
if (!(SMBUS_BYTE_BLOCK_CMD_MASK & cmd))
|
||||
return -EINVAL;
|
||||
|
||||
if (SMBUS_GROUP_BLOCK_CMD_MASK & cmd) {
|
||||
/* read specific block registers command. */
|
||||
smbus_cmd = SMBUS_ENCODE_RW(cmd, SMBUS_READ);
|
||||
ret = i2c_smbus_read_block_data(client, smbus_cmd, values);
|
||||
goto out;
|
||||
}
|
||||
|
||||
ret = 0;
|
||||
for (index = 0; index * I2C_SMBUS_BLOCK_MAX < len; index++) {
|
||||
smbus_cmd = SMBUS_ENCODE_IDX(cmd, index);
|
||||
smbus_cmd = SMBUS_ENCODE_RW(smbus_cmd, SMBUS_READ);
|
||||
buf = values + I2C_SMBUS_BLOCK_MAX * index;
|
||||
ret = i2c_smbus_read_block_data(client, smbus_cmd, buf);
|
||||
if (ret < 0)
|
||||
goto out;
|
||||
}
|
||||
|
||||
out:
|
||||
return ret > 0 ? len : ret;
|
||||
}
|
||||
|
||||
static s32 cyapa_read_byte(struct cyapa *cyapa, u8 cmd_idx)
|
||||
{
|
||||
u8 cmd;
|
||||
|
||||
if (cyapa->smbus) {
|
||||
cmd = cyapa_smbus_cmds[cmd_idx].cmd;
|
||||
cmd = SMBUS_ENCODE_RW(cmd, SMBUS_READ);
|
||||
} else {
|
||||
cmd = cyapa_i2c_cmds[cmd_idx].cmd;
|
||||
}
|
||||
return i2c_smbus_read_byte_data(cyapa->client, cmd);
|
||||
}
|
||||
|
||||
static s32 cyapa_write_byte(struct cyapa *cyapa, u8 cmd_idx, u8 value)
|
||||
{
|
||||
u8 cmd;
|
||||
|
||||
if (cyapa->smbus) {
|
||||
cmd = cyapa_smbus_cmds[cmd_idx].cmd;
|
||||
cmd = SMBUS_ENCODE_RW(cmd, SMBUS_WRITE);
|
||||
} else {
|
||||
cmd = cyapa_i2c_cmds[cmd_idx].cmd;
|
||||
}
|
||||
return i2c_smbus_write_byte_data(cyapa->client, cmd, value);
|
||||
}
|
||||
|
||||
static ssize_t cyapa_read_block(struct cyapa *cyapa, u8 cmd_idx, u8 *values)
|
||||
{
|
||||
u8 cmd;
|
||||
size_t len;
|
||||
|
||||
if (cyapa->smbus) {
|
||||
cmd = cyapa_smbus_cmds[cmd_idx].cmd;
|
||||
len = cyapa_smbus_cmds[cmd_idx].len;
|
||||
return cyapa_smbus_read_block(cyapa, cmd, len, values);
|
||||
} else {
|
||||
cmd = cyapa_i2c_cmds[cmd_idx].cmd;
|
||||
len = cyapa_i2c_cmds[cmd_idx].len;
|
||||
return cyapa_i2c_reg_read_block(cyapa, cmd, len, values);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Query device for its current operating state.
|
||||
*
|
||||
*/
|
||||
static int cyapa_get_state(struct cyapa *cyapa)
|
||||
{
|
||||
int ret;
|
||||
u8 status[BL_STATUS_SIZE];
|
||||
|
||||
cyapa->state = CYAPA_STATE_NO_DEVICE;
|
||||
|
||||
/*
|
||||
* Get trackpad status by reading 3 registers starting from 0.
|
||||
* If the device is in the bootloader, this will be BL_HEAD.
|
||||
* If the device is in operation mode, this will be the DATA regs.
|
||||
*
|
||||
*/
|
||||
ret = cyapa_i2c_reg_read_block(cyapa, BL_HEAD_OFFSET, BL_STATUS_SIZE,
|
||||
status);
|
||||
|
||||
/*
|
||||
* On smbus systems in OP mode, the i2c_reg_read will fail with
|
||||
* -ETIMEDOUT. In this case, try again using the smbus equivalent
|
||||
* command. This should return a BL_HEAD indicating CYAPA_STATE_OP.
|
||||
*/
|
||||
if (cyapa->smbus && (ret == -ETIMEDOUT || ret == -ENXIO))
|
||||
ret = cyapa_read_block(cyapa, CYAPA_CMD_BL_STATUS, status);
|
||||
|
||||
if (ret != BL_STATUS_SIZE)
|
||||
goto error;
|
||||
|
||||
if ((status[REG_OP_STATUS] & OP_STATUS_SRC) == OP_STATUS_SRC) {
|
||||
switch (status[REG_OP_STATUS] & OP_STATUS_DEV) {
|
||||
case CYAPA_DEV_NORMAL:
|
||||
case CYAPA_DEV_BUSY:
|
||||
cyapa->state = CYAPA_STATE_OP;
|
||||
break;
|
||||
default:
|
||||
ret = -EAGAIN;
|
||||
goto error;
|
||||
}
|
||||
} else {
|
||||
if (status[REG_BL_STATUS] & BL_STATUS_BUSY)
|
||||
cyapa->state = CYAPA_STATE_BL_BUSY;
|
||||
else if (status[REG_BL_ERROR] & BL_ERROR_BOOTLOADING)
|
||||
cyapa->state = CYAPA_STATE_BL_ACTIVE;
|
||||
else
|
||||
cyapa->state = CYAPA_STATE_BL_IDLE;
|
||||
}
|
||||
|
||||
return 0;
|
||||
error:
|
||||
return (ret < 0) ? ret : -EAGAIN;
|
||||
}
|
||||
|
||||
/*
|
||||
* Poll device for its status in a loop, waiting up to timeout for a response.
|
||||
*
|
||||
* When the device switches state, it usually takes ~300 ms.
|
||||
* However, when running a new firmware image, the device must calibrate its
|
||||
* sensors, which can take as long as 2 seconds.
|
||||
*
|
||||
* Note: The timeout has granularity of the polling rate, which is 100 ms.
|
||||
*
|
||||
* Returns:
|
||||
* 0 when the device eventually responds with a valid non-busy state.
|
||||
* -ETIMEDOUT if device never responds (too many -EAGAIN)
|
||||
* < 0 other errors
|
||||
*/
|
||||
static int cyapa_poll_state(struct cyapa *cyapa, unsigned int timeout)
|
||||
{
|
||||
int ret;
|
||||
int tries = timeout / 100;
|
||||
|
||||
ret = cyapa_get_state(cyapa);
|
||||
while ((ret || cyapa->state >= CYAPA_STATE_BL_BUSY) && tries--) {
|
||||
msleep(100);
|
||||
ret = cyapa_get_state(cyapa);
|
||||
}
|
||||
return (ret == -EAGAIN || ret == -ETIMEDOUT) ? -ETIMEDOUT : ret;
|
||||
}
|
||||
|
||||
static int cyapa_bl_deactivate(struct cyapa *cyapa)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = cyapa_i2c_reg_write_block(cyapa, 0, sizeof(bl_deactivate),
|
||||
bl_deactivate);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
/* wait for bootloader to switch to idle state; should take < 100ms */
|
||||
msleep(100);
|
||||
ret = cyapa_poll_state(cyapa, 500);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
if (cyapa->state != CYAPA_STATE_BL_IDLE)
|
||||
return -EAGAIN;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Exit bootloader
|
||||
*
|
||||
* Send bl_exit command, then wait 50 - 100 ms to let device transition to
|
||||
* operational mode. If this is the first time the device's firmware is
|
||||
* running, it can take up to 2 seconds to calibrate its sensors. So, poll
|
||||
* the device's new state for up to 2 seconds.
|
||||
*
|
||||
* Returns:
|
||||
* -EIO failure while reading from device
|
||||
* -EAGAIN device is stuck in bootloader, b/c it has invalid firmware
|
||||
* 0 device is supported and in operational mode
|
||||
*/
|
||||
static int cyapa_bl_exit(struct cyapa *cyapa)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = cyapa_i2c_reg_write_block(cyapa, 0, sizeof(bl_exit), bl_exit);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
/*
|
||||
* Wait for bootloader to exit, and operation mode to start.
|
||||
* Normally, this takes at least 50 ms.
|
||||
*/
|
||||
usleep_range(50000, 100000);
|
||||
/*
|
||||
* In addition, when a device boots for the first time after being
|
||||
* updated to new firmware, it must first calibrate its sensors, which
|
||||
* can take up to an additional 2 seconds.
|
||||
*/
|
||||
ret = cyapa_poll_state(cyapa, 2000);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
if (cyapa->state != CYAPA_STATE_OP)
|
||||
return -EAGAIN;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Set device power mode
|
||||
*
|
||||
*/
|
||||
static int cyapa_set_power_mode(struct cyapa *cyapa, u8 power_mode)
|
||||
{
|
||||
struct device *dev = &cyapa->client->dev;
|
||||
int ret;
|
||||
u8 power;
|
||||
|
||||
if (cyapa->state != CYAPA_STATE_OP)
|
||||
return 0;
|
||||
|
||||
ret = cyapa_read_byte(cyapa, CYAPA_CMD_POWER_MODE);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
power = ret & ~PWR_MODE_MASK;
|
||||
power |= power_mode & PWR_MODE_MASK;
|
||||
ret = cyapa_write_byte(cyapa, CYAPA_CMD_POWER_MODE, power);
|
||||
if (ret < 0)
|
||||
dev_err(dev, "failed to set power_mode 0x%02x err = %d\n",
|
||||
power_mode, ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int cyapa_get_query_data(struct cyapa *cyapa)
|
||||
{
|
||||
u8 query_data[QUERY_DATA_SIZE];
|
||||
int ret;
|
||||
|
||||
if (cyapa->state != CYAPA_STATE_OP)
|
||||
return -EBUSY;
|
||||
|
||||
ret = cyapa_read_block(cyapa, CYAPA_CMD_GROUP_QUERY, query_data);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
if (ret != QUERY_DATA_SIZE)
|
||||
return -EIO;
|
||||
|
||||
memcpy(&cyapa->product_id[0], &query_data[0], 5);
|
||||
cyapa->product_id[5] = '-';
|
||||
memcpy(&cyapa->product_id[6], &query_data[5], 6);
|
||||
cyapa->product_id[12] = '-';
|
||||
memcpy(&cyapa->product_id[13], &query_data[11], 2);
|
||||
cyapa->product_id[15] = '\0';
|
||||
|
||||
cyapa->btn_capability = query_data[19] & CAPABILITY_BTN_MASK;
|
||||
|
||||
cyapa->gen = query_data[20] & 0x0f;
|
||||
|
||||
cyapa->max_abs_x = ((query_data[21] & 0xf0) << 4) | query_data[22];
|
||||
cyapa->max_abs_y = ((query_data[21] & 0x0f) << 8) | query_data[23];
|
||||
|
||||
cyapa->physical_size_x =
|
||||
((query_data[24] & 0xf0) << 4) | query_data[25];
|
||||
cyapa->physical_size_y =
|
||||
((query_data[24] & 0x0f) << 8) | query_data[26];
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Check if device is operational.
|
||||
*
|
||||
* An operational device is responding, has exited bootloader, and has
|
||||
* firmware supported by this driver.
|
||||
*
|
||||
* Returns:
|
||||
* -EBUSY no device or in bootloader
|
||||
* -EIO failure while reading from device
|
||||
* -EAGAIN device is still in bootloader
|
||||
* if ->state = CYAPA_STATE_BL_IDLE, device has invalid firmware
|
||||
* -EINVAL device is in operational mode, but not supported by this driver
|
||||
* 0 device is supported
|
||||
*/
|
||||
static int cyapa_check_is_operational(struct cyapa *cyapa)
|
||||
{
|
||||
struct device *dev = &cyapa->client->dev;
|
||||
static const char unique_str[] = "CYTRA";
|
||||
int ret;
|
||||
|
||||
ret = cyapa_poll_state(cyapa, 2000);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
switch (cyapa->state) {
|
||||
case CYAPA_STATE_BL_ACTIVE:
|
||||
ret = cyapa_bl_deactivate(cyapa);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
/* Fallthrough state */
|
||||
case CYAPA_STATE_BL_IDLE:
|
||||
ret = cyapa_bl_exit(cyapa);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
/* Fallthrough state */
|
||||
case CYAPA_STATE_OP:
|
||||
ret = cyapa_get_query_data(cyapa);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
/* only support firmware protocol gen3 */
|
||||
if (cyapa->gen != CYAPA_GEN3) {
|
||||
dev_err(dev, "unsupported protocol version (%d)",
|
||||
cyapa->gen);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* only support product ID starting with CYTRA */
|
||||
if (memcmp(cyapa->product_id, unique_str,
|
||||
sizeof(unique_str) - 1) != 0) {
|
||||
dev_err(dev, "unsupported product ID (%s)\n",
|
||||
cyapa->product_id);
|
||||
return -EINVAL;
|
||||
}
|
||||
return 0;
|
||||
|
||||
default:
|
||||
return -EIO;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static irqreturn_t cyapa_irq(int irq, void *dev_id)
|
||||
{
|
||||
struct cyapa *cyapa = dev_id;
|
||||
struct device *dev = &cyapa->client->dev;
|
||||
struct input_dev *input = cyapa->input;
|
||||
struct cyapa_reg_data data;
|
||||
int i;
|
||||
int ret;
|
||||
int num_fingers;
|
||||
|
||||
if (device_may_wakeup(dev))
|
||||
pm_wakeup_event(dev, 0);
|
||||
|
||||
ret = cyapa_read_block(cyapa, CYAPA_CMD_GROUP_DATA, (u8 *)&data);
|
||||
if (ret != sizeof(data))
|
||||
goto out;
|
||||
|
||||
if ((data.device_status & OP_STATUS_SRC) != OP_STATUS_SRC ||
|
||||
(data.device_status & OP_STATUS_DEV) != CYAPA_DEV_NORMAL ||
|
||||
(data.finger_btn & OP_DATA_VALID) != OP_DATA_VALID) {
|
||||
goto out;
|
||||
}
|
||||
|
||||
num_fingers = (data.finger_btn >> 4) & 0x0f;
|
||||
for (i = 0; i < num_fingers; i++) {
|
||||
const struct cyapa_touch *touch = &data.touches[i];
|
||||
/* Note: touch->id range is 1 to 15; slots are 0 to 14. */
|
||||
int slot = touch->id - 1;
|
||||
|
||||
input_mt_slot(input, slot);
|
||||
input_mt_report_slot_state(input, MT_TOOL_FINGER, true);
|
||||
input_report_abs(input, ABS_MT_POSITION_X,
|
||||
((touch->xy_hi & 0xf0) << 4) | touch->x_lo);
|
||||
input_report_abs(input, ABS_MT_POSITION_Y,
|
||||
((touch->xy_hi & 0x0f) << 8) | touch->y_lo);
|
||||
input_report_abs(input, ABS_MT_PRESSURE, touch->pressure);
|
||||
}
|
||||
|
||||
input_mt_sync_frame(input);
|
||||
|
||||
if (cyapa->btn_capability & CAPABILITY_LEFT_BTN_MASK)
|
||||
input_report_key(input, BTN_LEFT,
|
||||
data.finger_btn & OP_DATA_LEFT_BTN);
|
||||
|
||||
if (cyapa->btn_capability & CAPABILITY_MIDDLE_BTN_MASK)
|
||||
input_report_key(input, BTN_MIDDLE,
|
||||
data.finger_btn & OP_DATA_MIDDLE_BTN);
|
||||
|
||||
if (cyapa->btn_capability & CAPABILITY_RIGHT_BTN_MASK)
|
||||
input_report_key(input, BTN_RIGHT,
|
||||
data.finger_btn & OP_DATA_RIGHT_BTN);
|
||||
|
||||
input_sync(input);
|
||||
|
||||
out:
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static u8 cyapa_check_adapter_functionality(struct i2c_client *client)
|
||||
{
|
||||
u8 ret = CYAPA_ADAPTER_FUNC_NONE;
|
||||
|
||||
if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
|
||||
ret |= CYAPA_ADAPTER_FUNC_I2C;
|
||||
if (i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA |
|
||||
I2C_FUNC_SMBUS_BLOCK_DATA |
|
||||
I2C_FUNC_SMBUS_I2C_BLOCK))
|
||||
ret |= CYAPA_ADAPTER_FUNC_SMBUS;
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int cyapa_create_input_dev(struct cyapa *cyapa)
|
||||
{
|
||||
struct device *dev = &cyapa->client->dev;
|
||||
int ret;
|
||||
struct input_dev *input;
|
||||
|
||||
if (!cyapa->physical_size_x || !cyapa->physical_size_y)
|
||||
return -EINVAL;
|
||||
|
||||
input = cyapa->input = input_allocate_device();
|
||||
if (!input) {
|
||||
dev_err(dev, "allocate memory for input device failed\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
input->name = CYAPA_NAME;
|
||||
input->phys = cyapa->phys;
|
||||
input->id.bustype = BUS_I2C;
|
||||
input->id.version = 1;
|
||||
input->id.product = 0; /* means any product in eventcomm. */
|
||||
input->dev.parent = &cyapa->client->dev;
|
||||
|
||||
input_set_drvdata(input, cyapa);
|
||||
|
||||
__set_bit(EV_ABS, input->evbit);
|
||||
|
||||
/* finger position */
|
||||
input_set_abs_params(input, ABS_MT_POSITION_X, 0, cyapa->max_abs_x, 0,
|
||||
0);
|
||||
input_set_abs_params(input, ABS_MT_POSITION_Y, 0, cyapa->max_abs_y, 0,
|
||||
0);
|
||||
input_set_abs_params(input, ABS_MT_PRESSURE, 0, 255, 0, 0);
|
||||
|
||||
input_abs_set_res(input, ABS_MT_POSITION_X,
|
||||
cyapa->max_abs_x / cyapa->physical_size_x);
|
||||
input_abs_set_res(input, ABS_MT_POSITION_Y,
|
||||
cyapa->max_abs_y / cyapa->physical_size_y);
|
||||
|
||||
if (cyapa->btn_capability & CAPABILITY_LEFT_BTN_MASK)
|
||||
__set_bit(BTN_LEFT, input->keybit);
|
||||
if (cyapa->btn_capability & CAPABILITY_MIDDLE_BTN_MASK)
|
||||
__set_bit(BTN_MIDDLE, input->keybit);
|
||||
if (cyapa->btn_capability & CAPABILITY_RIGHT_BTN_MASK)
|
||||
__set_bit(BTN_RIGHT, input->keybit);
|
||||
|
||||
if (cyapa->btn_capability == CAPABILITY_LEFT_BTN_MASK)
|
||||
__set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
|
||||
|
||||
/* handle pointer emulation and unused slots in core */
|
||||
ret = input_mt_init_slots(input, CYAPA_MAX_MT_SLOTS,
|
||||
INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED);
|
||||
if (ret) {
|
||||
dev_err(dev, "allocate memory for MT slots failed, %d\n", ret);
|
||||
goto err_free_device;
|
||||
}
|
||||
|
||||
/* Register the device in input subsystem */
|
||||
ret = input_register_device(input);
|
||||
if (ret) {
|
||||
dev_err(dev, "input device register failed, %d\n", ret);
|
||||
goto err_free_device;
|
||||
}
|
||||
return 0;
|
||||
|
||||
err_free_device:
|
||||
input_free_device(input);
|
||||
cyapa->input = NULL;
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int cyapa_probe(struct i2c_client *client,
|
||||
const struct i2c_device_id *dev_id)
|
||||
{
|
||||
int ret;
|
||||
u8 adapter_func;
|
||||
struct cyapa *cyapa;
|
||||
struct device *dev = &client->dev;
|
||||
|
||||
adapter_func = cyapa_check_adapter_functionality(client);
|
||||
if (adapter_func == CYAPA_ADAPTER_FUNC_NONE) {
|
||||
dev_err(dev, "not a supported I2C/SMBus adapter\n");
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
cyapa = kzalloc(sizeof(struct cyapa), GFP_KERNEL);
|
||||
if (!cyapa) {
|
||||
dev_err(dev, "allocate memory for cyapa failed\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
cyapa->gen = CYAPA_GEN3;
|
||||
cyapa->client = client;
|
||||
i2c_set_clientdata(client, cyapa);
|
||||
sprintf(cyapa->phys, "i2c-%d-%04x/input0", client->adapter->nr,
|
||||
client->addr);
|
||||
|
||||
/* i2c isn't supported, use smbus */
|
||||
if (adapter_func == CYAPA_ADAPTER_FUNC_SMBUS)
|
||||
cyapa->smbus = true;
|
||||
cyapa->state = CYAPA_STATE_NO_DEVICE;
|
||||
ret = cyapa_check_is_operational(cyapa);
|
||||
if (ret) {
|
||||
dev_err(dev, "device not operational, %d\n", ret);
|
||||
goto err_mem_free;
|
||||
}
|
||||
|
||||
ret = cyapa_create_input_dev(cyapa);
|
||||
if (ret) {
|
||||
dev_err(dev, "create input_dev instance failed, %d\n", ret);
|
||||
goto err_mem_free;
|
||||
}
|
||||
|
||||
ret = cyapa_set_power_mode(cyapa, PWR_MODE_FULL_ACTIVE);
|
||||
if (ret) {
|
||||
dev_err(dev, "set active power failed, %d\n", ret);
|
||||
goto err_unregister_device;
|
||||
}
|
||||
|
||||
cyapa->irq = client->irq;
|
||||
ret = request_threaded_irq(cyapa->irq,
|
||||
NULL,
|
||||
cyapa_irq,
|
||||
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
|
||||
"cyapa",
|
||||
cyapa);
|
||||
if (ret) {
|
||||
dev_err(dev, "IRQ request failed: %d\n, ", ret);
|
||||
goto err_unregister_device;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
err_unregister_device:
|
||||
input_unregister_device(cyapa->input);
|
||||
err_mem_free:
|
||||
kfree(cyapa);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int cyapa_remove(struct i2c_client *client)
|
||||
{
|
||||
struct cyapa *cyapa = i2c_get_clientdata(client);
|
||||
|
||||
free_irq(cyapa->irq, cyapa);
|
||||
input_unregister_device(cyapa->input);
|
||||
cyapa_set_power_mode(cyapa, PWR_MODE_OFF);
|
||||
kfree(cyapa);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PM_SLEEP
|
||||
static int cyapa_suspend(struct device *dev)
|
||||
{
|
||||
int ret;
|
||||
u8 power_mode;
|
||||
struct cyapa *cyapa = dev_get_drvdata(dev);
|
||||
|
||||
disable_irq(cyapa->irq);
|
||||
|
||||
/*
|
||||
* Set trackpad device to idle mode if wakeup is allowed,
|
||||
* otherwise turn off.
|
||||
*/
|
||||
power_mode = device_may_wakeup(dev) ? PWR_MODE_IDLE
|
||||
: PWR_MODE_OFF;
|
||||
ret = cyapa_set_power_mode(cyapa, power_mode);
|
||||
if (ret < 0)
|
||||
dev_err(dev, "set power mode failed, %d\n", ret);
|
||||
|
||||
if (device_may_wakeup(dev))
|
||||
cyapa->irq_wake = (enable_irq_wake(cyapa->irq) == 0);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cyapa_resume(struct device *dev)
|
||||
{
|
||||
int ret;
|
||||
struct cyapa *cyapa = dev_get_drvdata(dev);
|
||||
|
||||
if (device_may_wakeup(dev) && cyapa->irq_wake)
|
||||
disable_irq_wake(cyapa->irq);
|
||||
|
||||
ret = cyapa_set_power_mode(cyapa, PWR_MODE_FULL_ACTIVE);
|
||||
if (ret)
|
||||
dev_warn(dev, "resume active power failed, %d\n", ret);
|
||||
|
||||
enable_irq(cyapa->irq);
|
||||
return 0;
|
||||
}
|
||||
#endif /* CONFIG_PM_SLEEP */
|
||||
|
||||
static SIMPLE_DEV_PM_OPS(cyapa_pm_ops, cyapa_suspend, cyapa_resume);
|
||||
|
||||
static const struct i2c_device_id cyapa_id_table[] = {
|
||||
{ "cyapa", 0 },
|
||||
{ },
|
||||
};
|
||||
MODULE_DEVICE_TABLE(i2c, cyapa_id_table);
|
||||
|
||||
static struct i2c_driver cyapa_driver = {
|
||||
.driver = {
|
||||
.name = "cyapa",
|
||||
.owner = THIS_MODULE,
|
||||
.pm = &cyapa_pm_ops,
|
||||
},
|
||||
|
||||
.probe = cyapa_probe,
|
||||
.remove = cyapa_remove,
|
||||
.id_table = cyapa_id_table,
|
||||
};
|
||||
|
||||
module_i2c_driver(cyapa_driver);
|
||||
|
||||
MODULE_DESCRIPTION("Cypress APA I2C Trackpad Driver");
|
||||
MODULE_AUTHOR("Dudley Du <dudl@cypress.com>");
|
||||
MODULE_LICENSE("GPL");
|
||||
725
drivers/input/mouse/cypress_ps2.c
Normal file
725
drivers/input/mouse/cypress_ps2.c
Normal file
@@ -0,0 +1,725 @@
|
||||
/*
|
||||
* Cypress Trackpad PS/2 mouse driver
|
||||
*
|
||||
* Copyright (c) 2012 Cypress Semiconductor Corporation.
|
||||
*
|
||||
* Author:
|
||||
* Dudley Du <dudl@cypress.com>
|
||||
*
|
||||
* Additional contributors include:
|
||||
* Kamal Mostafa <kamal@canonical.com>
|
||||
* Kyle Fazzari <git@status.e4ward.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License version 2 as published by
|
||||
* the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#include <linux/init.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/serio.h>
|
||||
#include <linux/libps2.h>
|
||||
#include <linux/input.h>
|
||||
#include <linux/input/mt.h>
|
||||
#include <linux/sched.h>
|
||||
#include <linux/wait.h>
|
||||
|
||||
#include "cypress_ps2.h"
|
||||
|
||||
#undef CYTP_DEBUG_VERBOSE /* define this and DEBUG for more verbose dump */
|
||||
|
||||
static void cypress_set_packet_size(struct psmouse *psmouse, unsigned int n)
|
||||
{
|
||||
struct cytp_data *cytp = psmouse->private;
|
||||
cytp->pkt_size = n;
|
||||
}
|
||||
|
||||
static const unsigned char cytp_rate[] = {10, 20, 40, 60, 100, 200};
|
||||
static const unsigned char cytp_resolution[] = {0x00, 0x01, 0x02, 0x03};
|
||||
|
||||
static int cypress_ps2_sendbyte(struct psmouse *psmouse, int value)
|
||||
{
|
||||
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
||||
|
||||
if (ps2_sendbyte(ps2dev, value & 0xff, CYTP_CMD_TIMEOUT) < 0) {
|
||||
psmouse_dbg(psmouse,
|
||||
"sending command 0x%02x failed, resp 0x%02x\n",
|
||||
value & 0xff, ps2dev->nak);
|
||||
if (ps2dev->nak == CYTP_PS2_RETRY)
|
||||
return CYTP_PS2_RETRY;
|
||||
else
|
||||
return CYTP_PS2_ERROR;
|
||||
}
|
||||
|
||||
#ifdef CYTP_DEBUG_VERBOSE
|
||||
psmouse_dbg(psmouse, "sending command 0x%02x succeeded, resp 0xfa\n",
|
||||
value & 0xff);
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cypress_ps2_ext_cmd(struct psmouse *psmouse, unsigned short cmd,
|
||||
unsigned char data)
|
||||
{
|
||||
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
||||
int tries = CYTP_PS2_CMD_TRIES;
|
||||
int rc;
|
||||
|
||||
ps2_begin_command(ps2dev);
|
||||
|
||||
do {
|
||||
/*
|
||||
* Send extension command byte (0xE8 or 0xF3).
|
||||
* If sending the command fails, send recovery command
|
||||
* to make the device return to the ready state.
|
||||
*/
|
||||
rc = cypress_ps2_sendbyte(psmouse, cmd & 0xff);
|
||||
if (rc == CYTP_PS2_RETRY) {
|
||||
rc = cypress_ps2_sendbyte(psmouse, 0x00);
|
||||
if (rc == CYTP_PS2_RETRY)
|
||||
rc = cypress_ps2_sendbyte(psmouse, 0x0a);
|
||||
}
|
||||
if (rc == CYTP_PS2_ERROR)
|
||||
continue;
|
||||
|
||||
rc = cypress_ps2_sendbyte(psmouse, data);
|
||||
if (rc == CYTP_PS2_RETRY)
|
||||
rc = cypress_ps2_sendbyte(psmouse, data);
|
||||
if (rc == CYTP_PS2_ERROR)
|
||||
continue;
|
||||
else
|
||||
break;
|
||||
} while (--tries > 0);
|
||||
|
||||
ps2_end_command(ps2dev);
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
static int cypress_ps2_read_cmd_status(struct psmouse *psmouse,
|
||||
unsigned char cmd,
|
||||
unsigned char *param)
|
||||
{
|
||||
int rc;
|
||||
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
||||
enum psmouse_state old_state;
|
||||
int pktsize;
|
||||
|
||||
ps2_begin_command(&psmouse->ps2dev);
|
||||
|
||||
old_state = psmouse->state;
|
||||
psmouse->state = PSMOUSE_CMD_MODE;
|
||||
psmouse->pktcnt = 0;
|
||||
|
||||
pktsize = (cmd == CYTP_CMD_READ_TP_METRICS) ? 8 : 3;
|
||||
memset(param, 0, pktsize);
|
||||
|
||||
rc = cypress_ps2_sendbyte(psmouse, 0xe9);
|
||||
if (rc < 0)
|
||||
goto out;
|
||||
|
||||
wait_event_timeout(ps2dev->wait,
|
||||
(psmouse->pktcnt >= pktsize),
|
||||
msecs_to_jiffies(CYTP_CMD_TIMEOUT));
|
||||
|
||||
memcpy(param, psmouse->packet, pktsize);
|
||||
|
||||
psmouse_dbg(psmouse, "Command 0x%02x response data (0x): %*ph\n",
|
||||
cmd, pktsize, param);
|
||||
|
||||
out:
|
||||
psmouse->state = old_state;
|
||||
psmouse->pktcnt = 0;
|
||||
|
||||
ps2_end_command(&psmouse->ps2dev);
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
static bool cypress_verify_cmd_state(struct psmouse *psmouse,
|
||||
unsigned char cmd, unsigned char *param)
|
||||
{
|
||||
bool rate_match = false;
|
||||
bool resolution_match = false;
|
||||
int i;
|
||||
|
||||
/* callers will do further checking. */
|
||||
if (cmd == CYTP_CMD_READ_CYPRESS_ID ||
|
||||
cmd == CYTP_CMD_STANDARD_MODE ||
|
||||
cmd == CYTP_CMD_READ_TP_METRICS)
|
||||
return true;
|
||||
|
||||
if ((~param[0] & DFLT_RESP_BITS_VALID) == DFLT_RESP_BITS_VALID &&
|
||||
(param[0] & DFLT_RESP_BIT_MODE) == DFLT_RESP_STREAM_MODE) {
|
||||
for (i = 0; i < sizeof(cytp_resolution); i++)
|
||||
if (cytp_resolution[i] == param[1])
|
||||
resolution_match = true;
|
||||
|
||||
for (i = 0; i < sizeof(cytp_rate); i++)
|
||||
if (cytp_rate[i] == param[2])
|
||||
rate_match = true;
|
||||
|
||||
if (resolution_match && rate_match)
|
||||
return true;
|
||||
}
|
||||
|
||||
psmouse_dbg(psmouse, "verify cmd state failed.\n");
|
||||
return false;
|
||||
}
|
||||
|
||||
static int cypress_send_ext_cmd(struct psmouse *psmouse, unsigned char cmd,
|
||||
unsigned char *param)
|
||||
{
|
||||
int tries = CYTP_PS2_CMD_TRIES;
|
||||
int rc;
|
||||
|
||||
psmouse_dbg(psmouse, "send extension cmd 0x%02x, [%d %d %d %d]\n",
|
||||
cmd, DECODE_CMD_AA(cmd), DECODE_CMD_BB(cmd),
|
||||
DECODE_CMD_CC(cmd), DECODE_CMD_DD(cmd));
|
||||
|
||||
do {
|
||||
cypress_ps2_ext_cmd(psmouse,
|
||||
PSMOUSE_CMD_SETRES, DECODE_CMD_DD(cmd));
|
||||
cypress_ps2_ext_cmd(psmouse,
|
||||
PSMOUSE_CMD_SETRES, DECODE_CMD_CC(cmd));
|
||||
cypress_ps2_ext_cmd(psmouse,
|
||||
PSMOUSE_CMD_SETRES, DECODE_CMD_BB(cmd));
|
||||
cypress_ps2_ext_cmd(psmouse,
|
||||
PSMOUSE_CMD_SETRES, DECODE_CMD_AA(cmd));
|
||||
|
||||
rc = cypress_ps2_read_cmd_status(psmouse, cmd, param);
|
||||
if (rc)
|
||||
continue;
|
||||
|
||||
if (cypress_verify_cmd_state(psmouse, cmd, param))
|
||||
return 0;
|
||||
|
||||
} while (--tries > 0);
|
||||
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
int cypress_detect(struct psmouse *psmouse, bool set_properties)
|
||||
{
|
||||
unsigned char param[3];
|
||||
|
||||
if (cypress_send_ext_cmd(psmouse, CYTP_CMD_READ_CYPRESS_ID, param))
|
||||
return -ENODEV;
|
||||
|
||||
/* Check for Cypress Trackpad signature bytes: 0x33 0xCC */
|
||||
if (param[0] != 0x33 || param[1] != 0xCC)
|
||||
return -ENODEV;
|
||||
|
||||
if (set_properties) {
|
||||
psmouse->vendor = "Cypress";
|
||||
psmouse->name = "Trackpad";
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cypress_read_fw_version(struct psmouse *psmouse)
|
||||
{
|
||||
struct cytp_data *cytp = psmouse->private;
|
||||
unsigned char param[3];
|
||||
|
||||
if (cypress_send_ext_cmd(psmouse, CYTP_CMD_READ_CYPRESS_ID, param))
|
||||
return -ENODEV;
|
||||
|
||||
/* Check for Cypress Trackpad signature bytes: 0x33 0xCC */
|
||||
if (param[0] != 0x33 || param[1] != 0xCC)
|
||||
return -ENODEV;
|
||||
|
||||
cytp->fw_version = param[2] & FW_VERSION_MASX;
|
||||
cytp->tp_metrics_supported = (param[2] & TP_METRICS_MASK) ? 1 : 0;
|
||||
|
||||
psmouse_dbg(psmouse, "cytp->fw_version = %d\n", cytp->fw_version);
|
||||
psmouse_dbg(psmouse, "cytp->tp_metrics_supported = %d\n",
|
||||
cytp->tp_metrics_supported);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cypress_read_tp_metrics(struct psmouse *psmouse)
|
||||
{
|
||||
struct cytp_data *cytp = psmouse->private;
|
||||
unsigned char param[8];
|
||||
|
||||
/* set default values for tp metrics. */
|
||||
cytp->tp_width = CYTP_DEFAULT_WIDTH;
|
||||
cytp->tp_high = CYTP_DEFAULT_HIGH;
|
||||
cytp->tp_max_abs_x = CYTP_ABS_MAX_X;
|
||||
cytp->tp_max_abs_y = CYTP_ABS_MAX_Y;
|
||||
cytp->tp_min_pressure = CYTP_MIN_PRESSURE;
|
||||
cytp->tp_max_pressure = CYTP_MAX_PRESSURE;
|
||||
cytp->tp_res_x = cytp->tp_max_abs_x / cytp->tp_width;
|
||||
cytp->tp_res_y = cytp->tp_max_abs_y / cytp->tp_high;
|
||||
|
||||
memset(param, 0, sizeof(param));
|
||||
if (cypress_send_ext_cmd(psmouse, CYTP_CMD_READ_TP_METRICS, param) == 0) {
|
||||
/* Update trackpad parameters. */
|
||||
cytp->tp_max_abs_x = (param[1] << 8) | param[0];
|
||||
cytp->tp_max_abs_y = (param[3] << 8) | param[2];
|
||||
cytp->tp_min_pressure = param[4];
|
||||
cytp->tp_max_pressure = param[5];
|
||||
}
|
||||
|
||||
if (!cytp->tp_max_pressure ||
|
||||
cytp->tp_max_pressure < cytp->tp_min_pressure ||
|
||||
!cytp->tp_width || !cytp->tp_high ||
|
||||
!cytp->tp_max_abs_x ||
|
||||
cytp->tp_max_abs_x < cytp->tp_width ||
|
||||
!cytp->tp_max_abs_y ||
|
||||
cytp->tp_max_abs_y < cytp->tp_high)
|
||||
return -EINVAL;
|
||||
|
||||
cytp->tp_res_x = cytp->tp_max_abs_x / cytp->tp_width;
|
||||
cytp->tp_res_y = cytp->tp_max_abs_y / cytp->tp_high;
|
||||
|
||||
#ifdef CYTP_DEBUG_VERBOSE
|
||||
psmouse_dbg(psmouse, "Dump trackpad hardware configuration as below:\n");
|
||||
psmouse_dbg(psmouse, "cytp->tp_width = %d\n", cytp->tp_width);
|
||||
psmouse_dbg(psmouse, "cytp->tp_high = %d\n", cytp->tp_high);
|
||||
psmouse_dbg(psmouse, "cytp->tp_max_abs_x = %d\n", cytp->tp_max_abs_x);
|
||||
psmouse_dbg(psmouse, "cytp->tp_max_abs_y = %d\n", cytp->tp_max_abs_y);
|
||||
psmouse_dbg(psmouse, "cytp->tp_min_pressure = %d\n", cytp->tp_min_pressure);
|
||||
psmouse_dbg(psmouse, "cytp->tp_max_pressure = %d\n", cytp->tp_max_pressure);
|
||||
psmouse_dbg(psmouse, "cytp->tp_res_x = %d\n", cytp->tp_res_x);
|
||||
psmouse_dbg(psmouse, "cytp->tp_res_y = %d\n", cytp->tp_res_y);
|
||||
|
||||
psmouse_dbg(psmouse, "tp_type_APA = %d\n",
|
||||
(param[6] & TP_METRICS_BIT_APA) ? 1 : 0);
|
||||
psmouse_dbg(psmouse, "tp_type_MTG = %d\n",
|
||||
(param[6] & TP_METRICS_BIT_MTG) ? 1 : 0);
|
||||
psmouse_dbg(psmouse, "tp_palm = %d\n",
|
||||
(param[6] & TP_METRICS_BIT_PALM) ? 1 : 0);
|
||||
psmouse_dbg(psmouse, "tp_stubborn = %d\n",
|
||||
(param[6] & TP_METRICS_BIT_STUBBORN) ? 1 : 0);
|
||||
psmouse_dbg(psmouse, "tp_1f_jitter = %d\n",
|
||||
(param[6] & TP_METRICS_BIT_1F_JITTER) >> 2);
|
||||
psmouse_dbg(psmouse, "tp_2f_jitter = %d\n",
|
||||
(param[6] & TP_METRICS_BIT_2F_JITTER) >> 4);
|
||||
psmouse_dbg(psmouse, "tp_1f_spike = %d\n",
|
||||
param[7] & TP_METRICS_BIT_1F_SPIKE);
|
||||
psmouse_dbg(psmouse, "tp_2f_spike = %d\n",
|
||||
(param[7] & TP_METRICS_BIT_2F_SPIKE) >> 2);
|
||||
psmouse_dbg(psmouse, "tp_abs_packet_format_set = %d\n",
|
||||
(param[7] & TP_METRICS_BIT_ABS_PKT_FORMAT_SET) >> 4);
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cypress_query_hardware(struct psmouse *psmouse)
|
||||
{
|
||||
struct cytp_data *cytp = psmouse->private;
|
||||
int ret;
|
||||
|
||||
ret = cypress_read_fw_version(psmouse);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
if (cytp->tp_metrics_supported) {
|
||||
ret = cypress_read_tp_metrics(psmouse);
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cypress_set_absolute_mode(struct psmouse *psmouse)
|
||||
{
|
||||
struct cytp_data *cytp = psmouse->private;
|
||||
unsigned char param[3];
|
||||
|
||||
if (cypress_send_ext_cmd(psmouse, CYTP_CMD_ABS_WITH_PRESSURE_MODE, param) < 0)
|
||||
return -1;
|
||||
|
||||
cytp->mode = (cytp->mode & ~CYTP_BIT_ABS_REL_MASK)
|
||||
| CYTP_BIT_ABS_PRESSURE;
|
||||
cypress_set_packet_size(psmouse, 5);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Reset trackpad device.
|
||||
* This is also the default mode when trackpad powered on.
|
||||
*/
|
||||
static void cypress_reset(struct psmouse *psmouse)
|
||||
{
|
||||
struct cytp_data *cytp = psmouse->private;
|
||||
|
||||
cytp->mode = 0;
|
||||
|
||||
psmouse_reset(psmouse);
|
||||
}
|
||||
|
||||
static int cypress_set_input_params(struct input_dev *input,
|
||||
struct cytp_data *cytp)
|
||||
{
|
||||
int ret;
|
||||
|
||||
if (!cytp->tp_res_x || !cytp->tp_res_y)
|
||||
return -EINVAL;
|
||||
|
||||
__set_bit(EV_ABS, input->evbit);
|
||||
input_set_abs_params(input, ABS_X, 0, cytp->tp_max_abs_x, 0, 0);
|
||||
input_set_abs_params(input, ABS_Y, 0, cytp->tp_max_abs_y, 0, 0);
|
||||
input_set_abs_params(input, ABS_PRESSURE,
|
||||
cytp->tp_min_pressure, cytp->tp_max_pressure, 0, 0);
|
||||
input_set_abs_params(input, ABS_TOOL_WIDTH, 0, 255, 0, 0);
|
||||
|
||||
/* finger position */
|
||||
input_set_abs_params(input, ABS_MT_POSITION_X, 0, cytp->tp_max_abs_x, 0, 0);
|
||||
input_set_abs_params(input, ABS_MT_POSITION_Y, 0, cytp->tp_max_abs_y, 0, 0);
|
||||
input_set_abs_params(input, ABS_MT_PRESSURE, 0, 255, 0, 0);
|
||||
|
||||
ret = input_mt_init_slots(input, CYTP_MAX_MT_SLOTS,
|
||||
INPUT_MT_DROP_UNUSED|INPUT_MT_TRACK);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
__set_bit(INPUT_PROP_SEMI_MT, input->propbit);
|
||||
|
||||
input_abs_set_res(input, ABS_X, cytp->tp_res_x);
|
||||
input_abs_set_res(input, ABS_Y, cytp->tp_res_y);
|
||||
|
||||
input_abs_set_res(input, ABS_MT_POSITION_X, cytp->tp_res_x);
|
||||
input_abs_set_res(input, ABS_MT_POSITION_Y, cytp->tp_res_y);
|
||||
|
||||
__set_bit(BTN_TOUCH, input->keybit);
|
||||
__set_bit(BTN_TOOL_FINGER, input->keybit);
|
||||
__set_bit(BTN_TOOL_DOUBLETAP, input->keybit);
|
||||
__set_bit(BTN_TOOL_TRIPLETAP, input->keybit);
|
||||
__set_bit(BTN_TOOL_QUADTAP, input->keybit);
|
||||
__set_bit(BTN_TOOL_QUINTTAP, input->keybit);
|
||||
|
||||
__clear_bit(EV_REL, input->evbit);
|
||||
__clear_bit(REL_X, input->relbit);
|
||||
__clear_bit(REL_Y, input->relbit);
|
||||
|
||||
__set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
|
||||
__set_bit(EV_KEY, input->evbit);
|
||||
__set_bit(BTN_LEFT, input->keybit);
|
||||
__set_bit(BTN_RIGHT, input->keybit);
|
||||
__set_bit(BTN_MIDDLE, input->keybit);
|
||||
|
||||
input_set_drvdata(input, cytp);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cypress_get_finger_count(unsigned char header_byte)
|
||||
{
|
||||
unsigned char bits6_7;
|
||||
int finger_count;
|
||||
|
||||
bits6_7 = header_byte >> 6;
|
||||
finger_count = bits6_7 & 0x03;
|
||||
|
||||
if (finger_count == 1)
|
||||
return 1;
|
||||
|
||||
if (header_byte & ABS_HSCROLL_BIT) {
|
||||
/* HSCROLL gets added on to 0 finger count. */
|
||||
switch (finger_count) {
|
||||
case 0: return 4;
|
||||
case 2: return 5;
|
||||
default:
|
||||
/* Invalid contact (e.g. palm). Ignore it. */
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
return finger_count;
|
||||
}
|
||||
|
||||
|
||||
static int cypress_parse_packet(struct psmouse *psmouse,
|
||||
struct cytp_data *cytp, struct cytp_report_data *report_data)
|
||||
{
|
||||
unsigned char *packet = psmouse->packet;
|
||||
unsigned char header_byte = packet[0];
|
||||
int contact_cnt;
|
||||
|
||||
memset(report_data, 0, sizeof(struct cytp_report_data));
|
||||
|
||||
contact_cnt = cypress_get_finger_count(header_byte);
|
||||
|
||||
if (contact_cnt < 0) /* e.g. palm detect */
|
||||
return -EINVAL;
|
||||
|
||||
report_data->contact_cnt = contact_cnt;
|
||||
|
||||
report_data->tap = (header_byte & ABS_MULTIFINGER_TAP) ? 1 : 0;
|
||||
|
||||
if (report_data->contact_cnt == 1) {
|
||||
report_data->contacts[0].x =
|
||||
((packet[1] & 0x70) << 4) | packet[2];
|
||||
report_data->contacts[0].y =
|
||||
((packet[1] & 0x07) << 8) | packet[3];
|
||||
if (cytp->mode & CYTP_BIT_ABS_PRESSURE)
|
||||
report_data->contacts[0].z = packet[4];
|
||||
|
||||
} else if (report_data->contact_cnt >= 2) {
|
||||
report_data->contacts[0].x =
|
||||
((packet[1] & 0x70) << 4) | packet[2];
|
||||
report_data->contacts[0].y =
|
||||
((packet[1] & 0x07) << 8) | packet[3];
|
||||
if (cytp->mode & CYTP_BIT_ABS_PRESSURE)
|
||||
report_data->contacts[0].z = packet[4];
|
||||
|
||||
report_data->contacts[1].x =
|
||||
((packet[5] & 0xf0) << 4) | packet[6];
|
||||
report_data->contacts[1].y =
|
||||
((packet[5] & 0x0f) << 8) | packet[7];
|
||||
if (cytp->mode & CYTP_BIT_ABS_PRESSURE)
|
||||
report_data->contacts[1].z = report_data->contacts[0].z;
|
||||
}
|
||||
|
||||
report_data->left = (header_byte & BTN_LEFT_BIT) ? 1 : 0;
|
||||
report_data->right = (header_byte & BTN_RIGHT_BIT) ? 1 : 0;
|
||||
|
||||
/*
|
||||
* This is only true if one of the mouse buttons were tapped. Make
|
||||
* sure it doesn't turn into a click. The regular tap-to-click
|
||||
* functionality will handle that on its own. If we don't do this,
|
||||
* disabling tap-to-click won't affect the mouse button zones.
|
||||
*/
|
||||
if (report_data->tap)
|
||||
report_data->left = 0;
|
||||
|
||||
#ifdef CYTP_DEBUG_VERBOSE
|
||||
{
|
||||
int i;
|
||||
int n = report_data->contact_cnt;
|
||||
psmouse_dbg(psmouse, "Dump parsed report data as below:\n");
|
||||
psmouse_dbg(psmouse, "contact_cnt = %d\n",
|
||||
report_data->contact_cnt);
|
||||
if (n > CYTP_MAX_MT_SLOTS)
|
||||
n = CYTP_MAX_MT_SLOTS;
|
||||
for (i = 0; i < n; i++)
|
||||
psmouse_dbg(psmouse, "contacts[%d] = {%d, %d, %d}\n", i,
|
||||
report_data->contacts[i].x,
|
||||
report_data->contacts[i].y,
|
||||
report_data->contacts[i].z);
|
||||
psmouse_dbg(psmouse, "left = %d\n", report_data->left);
|
||||
psmouse_dbg(psmouse, "right = %d\n", report_data->right);
|
||||
psmouse_dbg(psmouse, "middle = %d\n", report_data->middle);
|
||||
}
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void cypress_process_packet(struct psmouse *psmouse, bool zero_pkt)
|
||||
{
|
||||
int i;
|
||||
struct input_dev *input = psmouse->dev;
|
||||
struct cytp_data *cytp = psmouse->private;
|
||||
struct cytp_report_data report_data;
|
||||
struct cytp_contact *contact;
|
||||
struct input_mt_pos pos[CYTP_MAX_MT_SLOTS];
|
||||
int slots[CYTP_MAX_MT_SLOTS];
|
||||
int n;
|
||||
|
||||
if (cypress_parse_packet(psmouse, cytp, &report_data))
|
||||
return;
|
||||
|
||||
n = report_data.contact_cnt;
|
||||
|
||||
if (n > CYTP_MAX_MT_SLOTS)
|
||||
n = CYTP_MAX_MT_SLOTS;
|
||||
|
||||
for (i = 0; i < n; i++) {
|
||||
contact = &report_data.contacts[i];
|
||||
pos[i].x = contact->x;
|
||||
pos[i].y = contact->y;
|
||||
}
|
||||
|
||||
input_mt_assign_slots(input, slots, pos, n);
|
||||
|
||||
for (i = 0; i < n; i++) {
|
||||
contact = &report_data.contacts[i];
|
||||
input_mt_slot(input, slots[i]);
|
||||
input_mt_report_slot_state(input, MT_TOOL_FINGER, true);
|
||||
input_report_abs(input, ABS_MT_POSITION_X, contact->x);
|
||||
input_report_abs(input, ABS_MT_POSITION_Y, contact->y);
|
||||
input_report_abs(input, ABS_MT_PRESSURE, contact->z);
|
||||
}
|
||||
|
||||
input_mt_sync_frame(input);
|
||||
|
||||
input_mt_report_finger_count(input, report_data.contact_cnt);
|
||||
|
||||
input_report_key(input, BTN_LEFT, report_data.left);
|
||||
input_report_key(input, BTN_RIGHT, report_data.right);
|
||||
input_report_key(input, BTN_MIDDLE, report_data.middle);
|
||||
|
||||
input_sync(input);
|
||||
}
|
||||
|
||||
static psmouse_ret_t cypress_validate_byte(struct psmouse *psmouse)
|
||||
{
|
||||
int contact_cnt;
|
||||
int index = psmouse->pktcnt - 1;
|
||||
unsigned char *packet = psmouse->packet;
|
||||
struct cytp_data *cytp = psmouse->private;
|
||||
|
||||
if (index < 0 || index > cytp->pkt_size)
|
||||
return PSMOUSE_BAD_DATA;
|
||||
|
||||
if (index == 0 && (packet[0] & 0xfc) == 0) {
|
||||
/* call packet process for reporting finger leave. */
|
||||
cypress_process_packet(psmouse, 1);
|
||||
return PSMOUSE_FULL_PACKET;
|
||||
}
|
||||
|
||||
/*
|
||||
* Perform validation (and adjust packet size) based only on the
|
||||
* first byte; allow all further bytes through.
|
||||
*/
|
||||
if (index != 0)
|
||||
return PSMOUSE_GOOD_DATA;
|
||||
|
||||
/*
|
||||
* If absolute/relative mode bit has not been set yet, just pass
|
||||
* the byte through.
|
||||
*/
|
||||
if ((cytp->mode & CYTP_BIT_ABS_REL_MASK) == 0)
|
||||
return PSMOUSE_GOOD_DATA;
|
||||
|
||||
if ((packet[0] & 0x08) == 0x08)
|
||||
return PSMOUSE_BAD_DATA;
|
||||
|
||||
contact_cnt = cypress_get_finger_count(packet[0]);
|
||||
|
||||
if (contact_cnt < 0)
|
||||
return PSMOUSE_BAD_DATA;
|
||||
|
||||
if (cytp->mode & CYTP_BIT_ABS_NO_PRESSURE)
|
||||
cypress_set_packet_size(psmouse, contact_cnt == 2 ? 7 : 4);
|
||||
else
|
||||
cypress_set_packet_size(psmouse, contact_cnt == 2 ? 8 : 5);
|
||||
|
||||
return PSMOUSE_GOOD_DATA;
|
||||
}
|
||||
|
||||
static psmouse_ret_t cypress_protocol_handler(struct psmouse *psmouse)
|
||||
{
|
||||
struct cytp_data *cytp = psmouse->private;
|
||||
|
||||
if (psmouse->pktcnt >= cytp->pkt_size) {
|
||||
cypress_process_packet(psmouse, 0);
|
||||
return PSMOUSE_FULL_PACKET;
|
||||
}
|
||||
|
||||
return cypress_validate_byte(psmouse);
|
||||
}
|
||||
|
||||
static void cypress_set_rate(struct psmouse *psmouse, unsigned int rate)
|
||||
{
|
||||
struct cytp_data *cytp = psmouse->private;
|
||||
|
||||
if (rate >= 80) {
|
||||
psmouse->rate = 80;
|
||||
cytp->mode |= CYTP_BIT_HIGH_RATE;
|
||||
} else {
|
||||
psmouse->rate = 40;
|
||||
cytp->mode &= ~CYTP_BIT_HIGH_RATE;
|
||||
}
|
||||
|
||||
ps2_command(&psmouse->ps2dev, (unsigned char *)&psmouse->rate,
|
||||
PSMOUSE_CMD_SETRATE);
|
||||
}
|
||||
|
||||
static void cypress_disconnect(struct psmouse *psmouse)
|
||||
{
|
||||
cypress_reset(psmouse);
|
||||
kfree(psmouse->private);
|
||||
psmouse->private = NULL;
|
||||
}
|
||||
|
||||
static int cypress_reconnect(struct psmouse *psmouse)
|
||||
{
|
||||
int tries = CYTP_PS2_CMD_TRIES;
|
||||
int rc;
|
||||
|
||||
do {
|
||||
cypress_reset(psmouse);
|
||||
rc = cypress_detect(psmouse, false);
|
||||
} while (rc && (--tries > 0));
|
||||
|
||||
if (rc) {
|
||||
psmouse_err(psmouse, "Reconnect: unable to detect trackpad.\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (cypress_set_absolute_mode(psmouse)) {
|
||||
psmouse_err(psmouse, "Reconnect: Unable to initialize Cypress absolute mode.\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int cypress_init(struct psmouse *psmouse)
|
||||
{
|
||||
struct cytp_data *cytp;
|
||||
|
||||
cytp = (struct cytp_data *)kzalloc(sizeof(struct cytp_data), GFP_KERNEL);
|
||||
psmouse->private = (void *)cytp;
|
||||
if (cytp == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
cypress_reset(psmouse);
|
||||
|
||||
psmouse->pktsize = 8;
|
||||
|
||||
if (cypress_query_hardware(psmouse)) {
|
||||
psmouse_err(psmouse, "Unable to query Trackpad hardware.\n");
|
||||
goto err_exit;
|
||||
}
|
||||
|
||||
if (cypress_set_absolute_mode(psmouse)) {
|
||||
psmouse_err(psmouse, "init: Unable to initialize Cypress absolute mode.\n");
|
||||
goto err_exit;
|
||||
}
|
||||
|
||||
if (cypress_set_input_params(psmouse->dev, cytp) < 0) {
|
||||
psmouse_err(psmouse, "init: Unable to set input params.\n");
|
||||
goto err_exit;
|
||||
}
|
||||
|
||||
psmouse->model = 1;
|
||||
psmouse->protocol_handler = cypress_protocol_handler;
|
||||
psmouse->set_rate = cypress_set_rate;
|
||||
psmouse->disconnect = cypress_disconnect;
|
||||
psmouse->reconnect = cypress_reconnect;
|
||||
psmouse->cleanup = cypress_reset;
|
||||
psmouse->resync_time = 0;
|
||||
|
||||
return 0;
|
||||
|
||||
err_exit:
|
||||
/*
|
||||
* Reset Cypress Trackpad as a standard mouse. Then
|
||||
* let psmouse driver commmunicating with it as default PS2 mouse.
|
||||
*/
|
||||
cypress_reset(psmouse);
|
||||
|
||||
psmouse->private = NULL;
|
||||
kfree(cytp);
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
bool cypress_supported(void)
|
||||
{
|
||||
return true;
|
||||
}
|
||||
191
drivers/input/mouse/cypress_ps2.h
Normal file
191
drivers/input/mouse/cypress_ps2.h
Normal file
@@ -0,0 +1,191 @@
|
||||
#ifndef _CYPRESS_PS2_H
|
||||
#define _CYPRESS_PS2_H
|
||||
|
||||
#include "psmouse.h"
|
||||
|
||||
#define CMD_BITS_MASK 0x03
|
||||
#define COMPOSIT(x, s) (((x) & CMD_BITS_MASK) << (s))
|
||||
|
||||
#define ENCODE_CMD(aa, bb, cc, dd) \
|
||||
(COMPOSIT((aa), 6) | COMPOSIT((bb), 4) | COMPOSIT((cc), 2) | COMPOSIT((dd), 0))
|
||||
#define CYTP_CMD_ABS_NO_PRESSURE_MODE ENCODE_CMD(0, 1, 0, 0)
|
||||
#define CYTP_CMD_ABS_WITH_PRESSURE_MODE ENCODE_CMD(0, 1, 0, 1)
|
||||
#define CYTP_CMD_SMBUS_MODE ENCODE_CMD(0, 1, 1, 0)
|
||||
#define CYTP_CMD_STANDARD_MODE ENCODE_CMD(0, 2, 0, 0) /* not implemented yet. */
|
||||
#define CYTP_CMD_CYPRESS_REL_MODE ENCODE_CMD(1, 1, 1, 1) /* not implemented yet. */
|
||||
#define CYTP_CMD_READ_CYPRESS_ID ENCODE_CMD(0, 0, 0, 0)
|
||||
#define CYTP_CMD_READ_TP_METRICS ENCODE_CMD(0, 0, 0, 1)
|
||||
#define CYTP_CMD_SET_HSCROLL_WIDTH(w) ENCODE_CMD(1, 1, 0, (w))
|
||||
#define CYTP_CMD_SET_HSCROLL_MASK ENCODE_CMD(1, 1, 0, 0)
|
||||
#define CYTP_CMD_SET_VSCROLL_WIDTH(w) ENCODE_CMD(1, 2, 0, (w))
|
||||
#define CYTP_CMD_SET_VSCROLL_MASK ENCODE_CMD(1, 2, 0, 0)
|
||||
#define CYTP_CMD_SET_PALM_GEOMETRY(e) ENCODE_CMD(1, 2, 1, (e))
|
||||
#define CYTP_CMD_PALM_GEMMETRY_MASK ENCODE_CMD(1, 2, 1, 0)
|
||||
#define CYTP_CMD_SET_PALM_SENSITIVITY(s) ENCODE_CMD(1, 2, 2, (s))
|
||||
#define CYTP_CMD_PALM_SENSITIVITY_MASK ENCODE_CMD(1, 2, 2, 0)
|
||||
#define CYTP_CMD_SET_MOUSE_SENSITIVITY(s) ENCODE_CMD(1, 3, ((s) >> 2), (s))
|
||||
#define CYTP_CMD_MOUSE_SENSITIVITY_MASK ENCODE_CMD(1, 3, 0, 0)
|
||||
#define CYTP_CMD_REQUEST_BASELINE_STATUS ENCODE_CMD(2, 0, 0, 1)
|
||||
#define CYTP_CMD_REQUEST_RECALIBRATION ENCODE_CMD(2, 0, 0, 3)
|
||||
|
||||
#define DECODE_CMD_AA(x) (((x) >> 6) & CMD_BITS_MASK)
|
||||
#define DECODE_CMD_BB(x) (((x) >> 4) & CMD_BITS_MASK)
|
||||
#define DECODE_CMD_CC(x) (((x) >> 2) & CMD_BITS_MASK)
|
||||
#define DECODE_CMD_DD(x) ((x) & CMD_BITS_MASK)
|
||||
|
||||
/* Cypress trackpad working mode. */
|
||||
#define CYTP_BIT_ABS_PRESSURE (1 << 3)
|
||||
#define CYTP_BIT_ABS_NO_PRESSURE (1 << 2)
|
||||
#define CYTP_BIT_CYPRESS_REL (1 << 1)
|
||||
#define CYTP_BIT_STANDARD_REL (1 << 0)
|
||||
#define CYTP_BIT_REL_MASK (CYTP_BIT_CYPRESS_REL | CYTP_BIT_STANDARD_REL)
|
||||
#define CYTP_BIT_ABS_MASK (CYTP_BIT_ABS_PRESSURE | CYTP_BIT_ABS_NO_PRESSURE)
|
||||
#define CYTP_BIT_ABS_REL_MASK (CYTP_BIT_ABS_MASK | CYTP_BIT_REL_MASK)
|
||||
|
||||
#define CYTP_BIT_HIGH_RATE (1 << 4)
|
||||
/*
|
||||
* report mode bit is set, firmware working in Remote Mode.
|
||||
* report mode bit is cleared, firmware working in Stream Mode.
|
||||
*/
|
||||
#define CYTP_BIT_REPORT_MODE (1 << 5)
|
||||
|
||||
/* scrolling width values for set HSCROLL and VSCROLL width command. */
|
||||
#define SCROLL_WIDTH_NARROW 1
|
||||
#define SCROLL_WIDTH_NORMAL 2
|
||||
#define SCROLL_WIDTH_WIDE 3
|
||||
|
||||
#define PALM_GEOMETRY_ENABLE 1
|
||||
#define PALM_GEOMETRY_DISABLE 0
|
||||
|
||||
#define TP_METRICS_MASK 0x80
|
||||
#define FW_VERSION_MASX 0x7f
|
||||
#define FW_VER_HIGH_MASK 0x70
|
||||
#define FW_VER_LOW_MASK 0x0f
|
||||
|
||||
/* Times to retry a ps2_command and millisecond delay between tries. */
|
||||
#define CYTP_PS2_CMD_TRIES 3
|
||||
#define CYTP_PS2_CMD_DELAY 500
|
||||
|
||||
/* time out for PS/2 command only in milliseconds. */
|
||||
#define CYTP_CMD_TIMEOUT 200
|
||||
#define CYTP_DATA_TIMEOUT 30
|
||||
|
||||
#define CYTP_EXT_CMD 0xe8
|
||||
#define CYTP_PS2_RETRY 0xfe
|
||||
#define CYTP_PS2_ERROR 0xfc
|
||||
|
||||
#define CYTP_RESP_RETRY 0x01
|
||||
#define CYTP_RESP_ERROR 0xfe
|
||||
|
||||
|
||||
#define CYTP_105001_WIDTH 97 /* Dell XPS 13 */
|
||||
#define CYTP_105001_HIGH 59
|
||||
#define CYTP_DEFAULT_WIDTH (CYTP_105001_WIDTH)
|
||||
#define CYTP_DEFAULT_HIGH (CYTP_105001_HIGH)
|
||||
|
||||
#define CYTP_ABS_MAX_X 1600
|
||||
#define CYTP_ABS_MAX_Y 900
|
||||
#define CYTP_MAX_PRESSURE 255
|
||||
#define CYTP_MIN_PRESSURE 0
|
||||
|
||||
/* header byte bits of relative package. */
|
||||
#define BTN_LEFT_BIT 0x01
|
||||
#define BTN_RIGHT_BIT 0x02
|
||||
#define BTN_MIDDLE_BIT 0x04
|
||||
#define REL_X_SIGN_BIT 0x10
|
||||
#define REL_Y_SIGN_BIT 0x20
|
||||
|
||||
/* header byte bits of absolute package. */
|
||||
#define ABS_VSCROLL_BIT 0x10
|
||||
#define ABS_HSCROLL_BIT 0x20
|
||||
#define ABS_MULTIFINGER_TAP 0x04
|
||||
#define ABS_EDGE_MOTION_MASK 0x80
|
||||
|
||||
#define DFLT_RESP_BITS_VALID 0x88 /* SMBus bit should not be set. */
|
||||
#define DFLT_RESP_SMBUS_BIT 0x80
|
||||
#define DFLT_SMBUS_MODE 0x80
|
||||
#define DFLT_PS2_MODE 0x00
|
||||
#define DFLT_RESP_BIT_MODE 0x40
|
||||
#define DFLT_RESP_REMOTE_MODE 0x40
|
||||
#define DFLT_RESP_STREAM_MODE 0x00
|
||||
#define DFLT_RESP_BIT_REPORTING 0x20
|
||||
#define DFLT_RESP_BIT_SCALING 0x10
|
||||
|
||||
#define TP_METRICS_BIT_PALM 0x80
|
||||
#define TP_METRICS_BIT_STUBBORN 0x40
|
||||
#define TP_METRICS_BIT_2F_JITTER 0x30
|
||||
#define TP_METRICS_BIT_1F_JITTER 0x0c
|
||||
#define TP_METRICS_BIT_APA 0x02
|
||||
#define TP_METRICS_BIT_MTG 0x01
|
||||
#define TP_METRICS_BIT_ABS_PKT_FORMAT_SET 0xf0
|
||||
#define TP_METRICS_BIT_2F_SPIKE 0x0c
|
||||
#define TP_METRICS_BIT_1F_SPIKE 0x03
|
||||
|
||||
/* bits of first byte response of E9h-Status Request command. */
|
||||
#define RESP_BTN_RIGHT_BIT 0x01
|
||||
#define RESP_BTN_MIDDLE_BIT 0x02
|
||||
#define RESP_BTN_LEFT_BIT 0x04
|
||||
#define RESP_SCALING_BIT 0x10
|
||||
#define RESP_ENABLE_BIT 0x20
|
||||
#define RESP_REMOTE_BIT 0x40
|
||||
#define RESP_SMBUS_BIT 0x80
|
||||
|
||||
#define CYTP_MAX_MT_SLOTS 2
|
||||
|
||||
struct cytp_contact {
|
||||
int x;
|
||||
int y;
|
||||
int z; /* also named as touch pressure. */
|
||||
};
|
||||
|
||||
/* The structure of Cypress Trackpad event data. */
|
||||
struct cytp_report_data {
|
||||
int contact_cnt;
|
||||
struct cytp_contact contacts[CYTP_MAX_MT_SLOTS];
|
||||
unsigned int left:1;
|
||||
unsigned int right:1;
|
||||
unsigned int middle:1;
|
||||
unsigned int tap:1; /* multi-finger tap detected. */
|
||||
};
|
||||
|
||||
/* The structure of Cypress Trackpad device private data. */
|
||||
struct cytp_data {
|
||||
int fw_version;
|
||||
|
||||
int pkt_size;
|
||||
int mode;
|
||||
|
||||
int tp_min_pressure;
|
||||
int tp_max_pressure;
|
||||
int tp_width; /* X direction physical size in mm. */
|
||||
int tp_high; /* Y direction physical size in mm. */
|
||||
int tp_max_abs_x; /* Max X absolute units that can be reported. */
|
||||
int tp_max_abs_y; /* Max Y absolute units that can be reported. */
|
||||
|
||||
int tp_res_x; /* X resolution in units/mm. */
|
||||
int tp_res_y; /* Y resolution in units/mm. */
|
||||
|
||||
int tp_metrics_supported;
|
||||
};
|
||||
|
||||
|
||||
#ifdef CONFIG_MOUSE_PS2_CYPRESS
|
||||
int cypress_detect(struct psmouse *psmouse, bool set_properties);
|
||||
int cypress_init(struct psmouse *psmouse);
|
||||
bool cypress_supported(void);
|
||||
#else
|
||||
inline int cypress_detect(struct psmouse *psmouse, bool set_properties)
|
||||
{
|
||||
return -ENOSYS;
|
||||
}
|
||||
inline int cypress_init(struct psmouse *psmouse)
|
||||
{
|
||||
return -ENOSYS;
|
||||
}
|
||||
inline bool cypress_supported(void)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
#endif /* CONFIG_MOUSE_PS2_CYPRESS */
|
||||
|
||||
#endif /* _CYPRESS_PS2_H */
|
||||
@@ -34,6 +34,7 @@
|
||||
#include "touchkit_ps2.h"
|
||||
#include "elantech.h"
|
||||
#include "sentelic.h"
|
||||
#include "cypress_ps2.h"
|
||||
|
||||
#define DRIVER_DESC "PS/2 mouse driver"
|
||||
|
||||
@@ -758,6 +759,28 @@ static int psmouse_extensions(struct psmouse *psmouse,
|
||||
synaptics_reset(psmouse);
|
||||
}
|
||||
|
||||
/*
|
||||
* Try Cypress Trackpad.
|
||||
* Must try it before Finger Sensing Pad because Finger Sensing Pad probe
|
||||
* upsets some modules of Cypress Trackpads.
|
||||
*/
|
||||
if (max_proto > PSMOUSE_IMEX &&
|
||||
cypress_detect(psmouse, set_properties) == 0) {
|
||||
if (cypress_supported()) {
|
||||
if (cypress_init(psmouse) == 0)
|
||||
return PSMOUSE_CYPRESS;
|
||||
|
||||
/*
|
||||
* Finger Sensing Pad probe upsets some modules of
|
||||
* Cypress Trackpad, must avoid Finger Sensing Pad
|
||||
* probe if Cypress Trackpad device detected.
|
||||
*/
|
||||
return PSMOUSE_PS2;
|
||||
}
|
||||
|
||||
max_proto = PSMOUSE_IMEX;
|
||||
}
|
||||
|
||||
/*
|
||||
* Try ALPS TouchPad
|
||||
*/
|
||||
@@ -896,6 +919,15 @@ static const struct psmouse_protocol psmouse_protocols[] = {
|
||||
.alias = "thinkps",
|
||||
.detect = thinking_detect,
|
||||
},
|
||||
#ifdef CONFIG_MOUSE_PS2_CYPRESS
|
||||
{
|
||||
.type = PSMOUSE_CYPRESS,
|
||||
.name = "CyPS/2",
|
||||
.alias = "cypress",
|
||||
.detect = cypress_detect,
|
||||
.init = cypress_init,
|
||||
},
|
||||
#endif
|
||||
{
|
||||
.type = PSMOUSE_GENPS,
|
||||
.name = "GenPS/2",
|
||||
|
||||
@@ -95,6 +95,7 @@ enum psmouse_type {
|
||||
PSMOUSE_ELANTECH,
|
||||
PSMOUSE_FSP,
|
||||
PSMOUSE_SYNAPTICS_RELATIVE,
|
||||
PSMOUSE_CYPRESS,
|
||||
PSMOUSE_AUTO /* This one should always be last */
|
||||
};
|
||||
|
||||
|
||||
@@ -722,11 +722,13 @@ static void synaptics_report_mt_data(struct psmouse *psmouse,
|
||||
default:
|
||||
/*
|
||||
* If the finger slot contained in SGM is valid, and either
|
||||
* hasn't changed, or is new, then report SGM in MTB slot 0.
|
||||
* hasn't changed, or is new, or the old SGM has now moved to
|
||||
* AGM, then report SGM in MTB slot 0.
|
||||
* Otherwise, empty MTB slot 0.
|
||||
*/
|
||||
if (mt_state->sgm != -1 &&
|
||||
(mt_state->sgm == old->sgm || old->sgm == -1))
|
||||
(mt_state->sgm == old->sgm ||
|
||||
old->sgm == -1 || mt_state->agm == old->sgm))
|
||||
synaptics_report_slot(dev, 0, sgm);
|
||||
else
|
||||
synaptics_report_slot(dev, 0, NULL);
|
||||
@@ -735,9 +737,31 @@ static void synaptics_report_mt_data(struct psmouse *psmouse,
|
||||
* If the finger slot contained in AGM is valid, and either
|
||||
* hasn't changed, or is new, then report AGM in MTB slot 1.
|
||||
* Otherwise, empty MTB slot 1.
|
||||
*
|
||||
* However, in the case where the AGM is new, make sure that
|
||||
* that it is either the same as the old SGM, or there was no
|
||||
* SGM.
|
||||
*
|
||||
* Otherwise, if the SGM was just 1, and the new AGM is 2, then
|
||||
* the new AGM will keep the old SGM's tracking ID, which can
|
||||
* cause apparent drumroll. This happens if in the following
|
||||
* valid finger sequence:
|
||||
*
|
||||
* Action SGM AGM (MTB slot:Contact)
|
||||
* 1. Touch contact 0 (0:0)
|
||||
* 2. Touch contact 1 (0:0, 1:1)
|
||||
* 3. Lift contact 0 (1:1)
|
||||
* 4. Touch contacts 2,3 (0:2, 1:3)
|
||||
*
|
||||
* In step 4, contact 3, in AGM must not be given the same
|
||||
* tracking ID as contact 1 had in step 3. To avoid this,
|
||||
* the first agm with contact 3 is dropped and slot 1 is
|
||||
* invalidated (tracking ID = -1).
|
||||
*/
|
||||
if (mt_state->agm != -1 &&
|
||||
(mt_state->agm == old->agm || old->agm == -1))
|
||||
(mt_state->agm == old->agm ||
|
||||
(old->agm == -1 &&
|
||||
(old->sgm == -1 || mt_state->agm == old->sgm))))
|
||||
synaptics_report_slot(dev, 1, agm);
|
||||
else
|
||||
synaptics_report_slot(dev, 1, NULL);
|
||||
@@ -1247,11 +1271,11 @@ static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
|
||||
input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
|
||||
|
||||
if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) {
|
||||
input_mt_init_slots(dev, 2, 0);
|
||||
set_abs_position_params(dev, priv, ABS_MT_POSITION_X,
|
||||
ABS_MT_POSITION_Y);
|
||||
/* Image sensors can report per-contact pressure */
|
||||
input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0);
|
||||
input_mt_init_slots(dev, 2, INPUT_MT_POINTER);
|
||||
|
||||
/* Image sensors can signal 4 and 5 finger clicks */
|
||||
__set_bit(BTN_TOOL_QUADTAP, dev->keybit);
|
||||
|
||||
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