/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright 2020 Jonathan Neuschäfer * * Register access and version information for the Netronix embedded * controller. */ #ifndef NTXEC_H #define NTXEC_H #include <linux/types.h> struct device; struct regmap; struct ntxec { struct device *dev; struct regmap *regmap; }; /* * Some registers, such as the battery status register (0x41), are in * big-endian, but others only have eight significant bits, which are in the * first byte transmitted over I2C (the MSB of the big-endian value). * This convenience function converts an 8-bit value to 16-bit for use in the * second kind of register. */ static inline __be16 ntxec_reg8(u8 value) { return value << 8; } /* Known firmware versions */ #define NTXEC_VERSION_KOBO_AURA 0xd726 /* found in Kobo Aura */ #define NTXEC_VERSION_TOLINO_SHINE2 0xf110 /* found in Tolino Shine 2 HD */ #endif