66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
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/*
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* Simple driver for Texas Instruments LM3630A LED Flash driver chip
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* Copyright (C) 2012 Texas Instruments
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#ifndef __LINUX_LM3630A_H
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#define __LINUX_LM3630A_H
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#define LM3630A_NAME "lm3630a_bl"
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enum lm3630a_pwm_ctrl {
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LM3630A_PWM_DISABLE = 0x00,
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LM3630A_PWM_BANK_A,
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LM3630A_PWM_BANK_B,
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LM3630A_PWM_BANK_ALL,
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LM3630A_PWM_BANK_A_ACT_LOW = 0x05,
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LM3630A_PWM_BANK_B_ACT_LOW,
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LM3630A_PWM_BANK_ALL_ACT_LOW,
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};
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enum lm3630a_leda_ctrl {
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LM3630A_LEDA_DISABLE = 0x00,
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LM3630A_LEDA_ENABLE = 0x04,
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LM3630A_LEDA_ENABLE_LINEAR = 0x14,
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};
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enum lm3630a_ledb_ctrl {
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LM3630A_LEDB_DISABLE = 0x00,
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LM3630A_LEDB_ON_A = 0x01,
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LM3630A_LEDB_ENABLE = 0x02,
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LM3630A_LEDB_ENABLE_LINEAR = 0x0A,
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};
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#define LM3630A_MAX_BRIGHTNESS 255
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/*
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*@leda_init_brt : led a init brightness. 4~255
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*@leda_max_brt : led a max brightness. 4~255
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*@leda_ctrl : led a disable, enable linear, enable exponential
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*@ledb_init_brt : led b init brightness. 4~255
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*@ledb_max_brt : led b max brightness. 4~255
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*@ledb_ctrl : led b disable, enable linear, enable exponential
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*@pwm_period : pwm period
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*@pwm_ctrl : pwm disable, bank a or b, active high or low
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*/
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struct lm3630a_platform_data {
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/* led a config. */
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int leda_init_brt;
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int leda_max_brt;
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enum lm3630a_leda_ctrl leda_ctrl;
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/* led b config. */
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int ledb_init_brt;
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int ledb_max_brt;
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enum lm3630a_ledb_ctrl ledb_ctrl;
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/* pwm config. */
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unsigned int pwm_period;
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enum lm3630a_pwm_ctrl pwm_ctrl;
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};
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#endif /* __LINUX_LM3630A_H */
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