38 lines
774 B
C
38 lines
774 B
C
/* Copyright 2018 The Chromium OS Authors. All rights reserved.
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*
|
|
* TI LM3509 LED driver.
|
|
*/
|
|
|
|
#ifndef __CROS_EC_LM3509_H
|
|
#define __CROS_EC_LM3509_H
|
|
|
|
#define LM3509_I2C_ADDR_FLAGS 0x36
|
|
|
|
/*
|
|
* General purpose register
|
|
*
|
|
* [2]= set both main and secondary current same
|
|
* both control by BMAIN.
|
|
* [1]= enable secondary current sink.
|
|
* [0]= enable main current sink.
|
|
*/
|
|
#define LM3509_REG_GP 0x10
|
|
|
|
/*
|
|
* Brightness register
|
|
*
|
|
* 0x00: 0%
|
|
* 0x1F: 100%
|
|
* Power-on-value: 0% (0xE0)
|
|
*/
|
|
#define LM3509_REG_BMAIN 0xA0
|
|
#define LM3509_REG_BSUB 0xB0
|
|
|
|
#define LM3509_BMAIN_MASK 0x1F
|
|
|
|
extern const struct kblight_drv kblight_lm3509;
|
|
|
|
#endif /* __CROS_EC_LM3509_H */
|