diff options
Diffstat (limited to 'drivers/input/rmi4/rmi_driver.h')
| -rw-r--r-- | drivers/input/rmi4/rmi_driver.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/drivers/input/rmi4/rmi_driver.h b/drivers/input/rmi4/rmi_driver.h new file mode 100644 index 0000000000..1c6c6086c0 --- /dev/null +++ b/drivers/input/rmi4/rmi_driver.h @@ -0,0 +1,141 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2011-2016 Synaptics Incorporated + * Copyright (c) 2011 Unixphere + */ + +#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 PDT_PROPERTIES_LOCATION 0x00EF +#define BSR_LOCATION 0x00FE + +#define RMI_PDT_PROPS_HAS_BSR 0x02 + +#define NAME_BUFFER_SIZE 256 + +#define RMI_PDT_ENTRY_SIZE 6 +#define RMI_PDT_FUNCTION_VERSION_MASK 0x60 +#define RMI_PDT_INT_SOURCE_COUNT_MASK 0x07 + +#define PDT_START_SCAN_LOCATION 0x00e9 +#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; +}; + +#define RMI_REG_DESC_PRESENSE_BITS (32 * BITS_PER_BYTE) +#define RMI_REG_DESC_SUBPACKET_BITS (37 * BITS_PER_BYTE) + +/* 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( + RMI_REG_DESC_SUBPACKET_BITS)]; +}; + +/* + * 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); +#else +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) {} +#endif + +#ifdef CONFIG_RMI4_F34 +int rmi_f34_create_sysfs(struct rmi_device *rmi_dev); +void rmi_f34_remove_sysfs(struct rmi_device *rmi_dev); +#else +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_f3a_handler; +extern struct rmi_function_handler rmi_f54_handler; +extern struct rmi_function_handler rmi_f55_handler; +#endif |