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* Copyright (c) 2011-2016 Synaptics Incorporated
* Copyright (c) 2011 Unixphere
* 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.
#ifndef _RMI_DRIVER_H
#define _RMI_DRIVER_H
#include <linux/ctype.h>
#include <linux/hrtimer.h>
#include <linux/ktime.h>
#include <linux/input.h>
#include "rmi_bus.h"
#define SYNAPTICS_INPUT_DEVICE_NAME "Synaptics RMI4 Touch Sensor"
#define SYNAPTICS_VENDOR_ID 0x06cb
#define GROUP(_attrs) { \
.attrs = _attrs, \
#define BSR_LOCATION 0x00FE
#define RMI_PDT_PROPS_HAS_BSR 0x02
#define NAME_BUFFER_SIZE 256
#define PDT_END_SCAN_LOCATION 0x0005
#define RMI4_END_OF_PDT(id) ((id) == 0x00 || (id) == 0xff)
struct pdt_entry {
u16 page_start;
u8 query_base_addr;
u8 command_base_addr;
u8 control_base_addr;
u8 data_base_addr;
u8 interrupt_source_count;
u8 function_version;
u8 function_number;
/* describes a single packet register */
struct rmi_register_desc_item {
u16 reg;
unsigned long reg_size;
u8 num_subpackets;
unsigned long subpacket_map[BITS_TO_LONGS(
* describes the packet registers for a particular type
* (ie query, control, data)
struct rmi_register_descriptor {
unsigned long struct_size;
unsigned long presense_map[BITS_TO_LONGS(RMI_REG_DESC_PRESENSE_BITS)];
u8 num_registers;
struct rmi_register_desc_item *registers;
int rmi_read_register_desc(struct rmi_device *d, u16 addr,
struct rmi_register_descriptor *rdesc);
const struct rmi_register_desc_item *rmi_get_register_desc_item(
struct rmi_register_descriptor *rdesc, u16 reg);
* Calculate the total size of all of the registers described in the
* descriptor.
size_t rmi_register_desc_calc_size(struct rmi_register_descriptor *rdesc);
int rmi_register_desc_calc_reg_offset(
struct rmi_register_descriptor *rdesc, u16 reg);
bool rmi_register_desc_has_subpacket(const struct rmi_register_desc_item *item,
u8 subpacket);
bool rmi_is_physical_driver(struct device_driver *);
int rmi_register_physical_driver(void);
void rmi_unregister_physical_driver(void);
void rmi_free_function_list(struct rmi_device *rmi_dev);
struct rmi_function *rmi_find_function(struct rmi_device *rmi_dev, u8 number);
int rmi_enable_sensor(struct rmi_device *rmi_dev);
int rmi_scan_pdt(struct rmi_device *rmi_dev, void *ctx,
int (*callback)(struct rmi_device *rmi_dev, void *ctx,
const struct pdt_entry *entry));
int rmi_probe_interrupts(struct rmi_driver_data *data);
void rmi_enable_irq(struct rmi_device *rmi_dev, bool clear_wake);
void rmi_disable_irq(struct rmi_device *rmi_dev, bool enable_wake);
int rmi_init_functions(struct rmi_driver_data *data);
int rmi_initial_reset(struct rmi_device *rmi_dev, void *ctx,
const struct pdt_entry *pdt);
const char *rmi_f01_get_product_ID(struct rmi_function *fn);
#ifdef CONFIG_RMI4_F03
int rmi_f03_overwrite_button(struct rmi_function *fn, unsigned int button,
int value);
void rmi_f03_commit_buttons(struct rmi_function *fn);
static inline int rmi_f03_overwrite_button(struct rmi_function *fn,
unsigned int button, int value)
return 0;
static inline void rmi_f03_commit_buttons(struct rmi_function *fn) {}
#ifdef CONFIG_RMI4_F34
int rmi_f34_create_sysfs(struct rmi_device *rmi_dev);
void rmi_f34_remove_sysfs(struct rmi_device *rmi_dev);
static inline int rmi_f34_create_sysfs(struct rmi_device *rmi_dev)
return 0;
static inline void rmi_f34_remove_sysfs(struct rmi_device *rmi_dev)
#endif /* CONFIG_RMI_F34 */
extern struct rmi_function_handler rmi_f01_handler;
extern struct rmi_function_handler rmi_f03_handler;
extern struct rmi_function_handler rmi_f11_handler;
extern struct rmi_function_handler rmi_f12_handler;
extern struct rmi_function_handler rmi_f30_handler;
extern struct rmi_function_handler rmi_f34_handler;
extern struct rmi_function_handler rmi_f54_handler;
extern struct rmi_function_handler rmi_f55_handler;