drivers/hid/i2c-hid/i2c-hid.h

   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