forked from Minki/linux
6adba43fd2
Sensor tuning support is needed to determine the number of enabled
tx and rx electrodes for use in F54 functions.
The number of enabled electrodes is not identical to the total number
of electrodes as reported with F55:Query0 and F55:Query1. It has to be
calculated by analyzing F55:Ctrl1 (sensor receiver assignment) and
F55:Ctrl2 (sensor transmitter assignment).
Support for additional sensor tuning functions may be added later.
Fixes: 3a762dbd53 ("[media] Input: synaptics-rmi4 - add support for F54 ...")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Nick Dyer <nick@shmanahar.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
132 lines
3.8 KiB
C
132 lines
3.8 KiB
C
/*
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* Copyright (c) 2011-2016 Synaptics Incorporated
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* Copyright (c) 2011 Unixphere
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*/
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#ifndef _RMI_DRIVER_H
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#define _RMI_DRIVER_H
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#include <linux/ctype.h>
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#include <linux/hrtimer.h>
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#include <linux/ktime.h>
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#include <linux/input.h>
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#include "rmi_bus.h"
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#define RMI_DRIVER_VERSION "2.0"
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#define SYNAPTICS_INPUT_DEVICE_NAME "Synaptics RMI4 Touch Sensor"
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#define SYNAPTICS_VENDOR_ID 0x06cb
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#define GROUP(_attrs) { \
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.attrs = _attrs, \
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}
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#define PDT_PROPERTIES_LOCATION 0x00EF
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#define BSR_LOCATION 0x00FE
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#define RMI_PDT_PROPS_HAS_BSR 0x02
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#define NAME_BUFFER_SIZE 256
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#define RMI_PDT_ENTRY_SIZE 6
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#define RMI_PDT_FUNCTION_VERSION_MASK 0x60
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#define RMI_PDT_INT_SOURCE_COUNT_MASK 0x07
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#define PDT_START_SCAN_LOCATION 0x00e9
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#define PDT_END_SCAN_LOCATION 0x0005
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#define RMI4_END_OF_PDT(id) ((id) == 0x00 || (id) == 0xff)
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struct pdt_entry {
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u16 page_start;
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u8 query_base_addr;
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u8 command_base_addr;
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u8 control_base_addr;
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u8 data_base_addr;
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u8 interrupt_source_count;
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u8 function_version;
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u8 function_number;
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};
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int rmi_read_pdt_entry(struct rmi_device *rmi_dev, struct pdt_entry *entry,
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u16 pdt_address);
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#define RMI_REG_DESC_PRESENSE_BITS (32 * BITS_PER_BYTE)
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#define RMI_REG_DESC_SUBPACKET_BITS (37 * BITS_PER_BYTE)
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/* describes a single packet register */
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struct rmi_register_desc_item {
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u16 reg;
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unsigned long reg_size;
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u8 num_subpackets;
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unsigned long subpacket_map[BITS_TO_LONGS(
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RMI_REG_DESC_SUBPACKET_BITS)];
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};
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/*
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* describes the packet registers for a particular type
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* (ie query, control, data)
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*/
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struct rmi_register_descriptor {
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unsigned long struct_size;
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unsigned long presense_map[BITS_TO_LONGS(RMI_REG_DESC_PRESENSE_BITS)];
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u8 num_registers;
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struct rmi_register_desc_item *registers;
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};
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int rmi_read_register_desc(struct rmi_device *d, u16 addr,
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struct rmi_register_descriptor *rdesc);
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const struct rmi_register_desc_item *rmi_get_register_desc_item(
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struct rmi_register_descriptor *rdesc, u16 reg);
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/*
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* Calculate the total size of all of the registers described in the
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* descriptor.
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*/
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size_t rmi_register_desc_calc_size(struct rmi_register_descriptor *rdesc);
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int rmi_register_desc_calc_reg_offset(
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struct rmi_register_descriptor *rdesc, u16 reg);
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bool rmi_register_desc_has_subpacket(const struct rmi_register_desc_item *item,
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u8 subpacket);
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bool rmi_is_physical_driver(struct device_driver *);
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int rmi_register_physical_driver(void);
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void rmi_unregister_physical_driver(void);
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void rmi_free_function_list(struct rmi_device *rmi_dev);
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int rmi_enable_sensor(struct rmi_device *rmi_dev);
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int rmi_scan_pdt(struct rmi_device *rmi_dev, void *ctx,
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int (*callback)(struct rmi_device *rmi_dev, void *ctx,
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const struct pdt_entry *entry));
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int rmi_probe_interrupts(struct rmi_driver_data *data);
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int rmi_init_functions(struct rmi_driver_data *data);
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int rmi_initial_reset(struct rmi_device *rmi_dev, void *ctx,
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const struct pdt_entry *pdt);
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char *rmi_f01_get_product_ID(struct rmi_function *fn);
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#ifdef CONFIG_RMI4_F34
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int rmi_f34_create_sysfs(struct rmi_device *rmi_dev);
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void rmi_f34_remove_sysfs(struct rmi_device *rmi_dev);
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#else
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static inline int rmi_f34_create_sysfs(struct rmi_device *rmi_dev)
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{
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return 0;
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}
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static inline void rmi_f34_remove_sysfs(struct rmi_device *rmi_dev)
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{
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}
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#endif /* CONFIG_RMI_F34 */
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extern struct rmi_function_handler rmi_f01_handler;
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extern struct rmi_function_handler rmi_f11_handler;
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extern struct rmi_function_handler rmi_f12_handler;
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extern struct rmi_function_handler rmi_f30_handler;
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extern struct rmi_function_handler rmi_f34_handler;
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extern struct rmi_function_handler rmi_f54_handler;
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extern struct rmi_function_handler rmi_f55_handler;
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#endif
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