69 lines
2.2 KiB
C
69 lines
2.2 KiB
C
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/* Copyright 2018 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* TI LM3630A LED driver.
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*/
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#ifndef __CROS_EC_LM3630A_H
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#define __CROS_EC_LM3630A_H
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#define LM3630A_REG_CONTROL 0x00
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#define LM3630A_REG_CONFIG 0x01
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#define LM3630A_REG_BOOST_CONTROL 0x02
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#define LM3630A_REG_A_BRIGHTNESS 0x03
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#define LM3630A_REG_B_BRIGHTNESS 0x04
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#define LM3630A_REG_A_CURRENT 0x05
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#define LM3630A_REG_B_CURRENT 0x06
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#define LM3630A_REG_ONOFF_RAMP 0x07
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#define LM3630A_REG_RUN_RAMP 0x08
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#define LM3630A_REG_INT_STATUS 0x09
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#define LM3630A_REG_INT_ENABLE 0x0a
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#define LM3630A_REG_FAULT_STATUS 0x0b
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#define LM3630A_REG_SW_RESET 0x0f
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#define LM3630A_REG_PWM_OUT_LOW 0x12
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#define LM3630A_REG_PWM_OUT_HIGH 0x13
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#define LM3630A_REG_REVISION 0x1f
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#define LM3630A_REG_FILTER_STRENGTH 0x50
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/* Control register bits */
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#define LM3630A_CTRL_BIT_SLEEP_CMD BIT(7)
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#define LM3630A_CTRL_BIT_SLEEP_STAT BIT(6)
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#define LM3630A_CTRL_BIT_LINEAR_A BIT(4)
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#define LM3630A_CTRL_BIT_LINEAR_B BIT(3)
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#define LM3630A_CTRL_BIT_LED_EN_A BIT(2)
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#define LM3630A_CTRL_BIT_LED_EN_B BIT(1)
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#define LM3630A_CTRL_BIT_LED2_ON_A BIT(0)
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/* Config register bits */
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#define LM3630A_CFG_BIT_FB_EN_B BIT(4)
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#define LM3630A_CFG_BIT_FB_EN_A BIT(3)
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#define LM3630A_CFG_BIT_PWM_LOW BIT(2)
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#define LM3630A_CFG_BIT_PWM_EN_B BIT(1)
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#define LM3630A_CFG_BIT_PWM_EN_A BIT(0)
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/* Boost control register bits */
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#define LM3630A_BOOST_OVP_16V (0 << 5)
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#define LM3630A_BOOST_OVP_24V BIT(5)
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#define LM3630A_BOOST_OVP_32V (2 << 5)
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#define LM3630A_BOOST_OVP_40V (3 << 5)
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#define LM3630A_BOOST_OCP_600MA (0 << 3)
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#define LM3630A_BOOST_OCP_800MA BIT(3)
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#define LM3630A_BOOST_OCP_1000MA (2 << 3)
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#define LM3630A_BOOST_OCP_1200MA (3 << 3)
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#define LM3630A_BOOST_SLOW_START BIT(2)
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#define LM3630A_SHIFT_500KHZ (0 << 1) /* FMODE=0 */
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#define LM3630A_SHIFT_560KHZ BIT(1) /* FMODE=0 */
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#define LM3630A_SHIFT_1000KHZ (0 << 1) /* FMODE=1 */
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#define LM3630A_SHIFT_1120KHZ BIT(1) /* FMODE=1 */
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#define LM3630A_FMODE_500KHZ (0 << 0)
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#define LM3630A_FMODE_1000KHZ BIT(0)
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/* Power on and initialize LM3630A. */
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int lm3630a_poweron(void);
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/* Power off LM3630A. */
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int lm3630a_poweroff(void);
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#endif /* __CROS_EC_LM3630A_H */
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