1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 3 #ifndef I2C_HID_H 4 #define I2C_HID_H 5 6 #include <linux/i2c.h> 7 8 #ifdef CONFIG_DMI 9 struct i2c_hid_desc *i2c_hid_get_dmi_i2c_hid_desc_override(uint8_t *i2c_name); 10 char *i2c_hid_get_dmi_hid_report_desc_override(uint8_t *i2c_name, 11 unsigned int *size); 12 u32 i2c_hid_get_dmi_quirks(const u16 vendor, const u16 product); 13 #else 14 static inline struct i2c_hid_desc 15 *i2c_hid_get_dmi_i2c_hid_desc_override(uint8_t *i2c_name) 16 { return NULL; } 17 static inline char *i2c_hid_get_dmi_hid_report_desc_override(uint8_t *i2c_name, 18 unsigned int *size) 19 { return NULL; } 20 static inline u32 i2c_hid_get_dmi_quirks(const u16 vendor, const u16 product) 21 { return 0; } 22 #endif 23 24 /** 25 * struct i2chid_ops - Ops provided to the core. 26 * 27 * @power_up: do sequencing to power up the device. 28 * @power_down: do sequencing to power down the device. 29 * @shutdown_tail: called at the end of shutdown. 30 */ 31 struct i2chid_ops { 32 int (*power_up)(struct i2chid_ops *ops); 33 void (*power_down)(struct i2chid_ops *ops); 34 void (*shutdown_tail)(struct i2chid_ops *ops); 35 }; 36 37 int i2c_hid_core_probe(struct i2c_client *client, struct i2chid_ops *ops, 38 u16 hid_descriptor_address, u32 quirks); 39 void i2c_hid_core_remove(struct i2c_client *client); 40 41 void i2c_hid_core_shutdown(struct i2c_client *client); 42 43 extern const struct dev_pm_ops i2c_hid_core_pm; 44 45 #endif 46