Implementation of LTC3208 Driver. More...

#include <errno.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
#include "ltc3208.h"
#include "no_os_i2c.h"
#include "no_os_util.h"
#include "no_os_delay.h"

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Functions
int	ltc3208_init (struct ltc3208_dev **device, struct ltc3208_init_param init_param)
	Initializes the LTC3208 device structure.

int	ltc3208_remove (struct ltc3208_dev *device)
	Deallocates the resources for the device structure.

int	ltc3208_reg_write (struct ltc3208_dev *device, uint8_t reg_addr, uint8_t reg_data)
	Writes to the selected register on the device.

int	ltc3208_reset (struct ltc3208_dev *device)
	Resets all register of the device.

int	ltc3208_set_8_bit_dac (struct ltc3208_dev *device, enum reg_options reg_selected, uint8_t current_level)
	Sets the selected LED register's current strength.

int	ltc3208_set_4_bit_dac (struct ltc3208_dev *device, enum reg_options reg_selected, uint8_t current_level_high, uint8_t current_level_low)
	Sets the selected LED register's current strength.

int	ltc3208_set_all_aux_led_dac (struct ltc3208_dev *device, enum dac_options aux_dac_1, enum dac_options aux_dac_2, enum dac_options aux_dac_3, enum dac_options aux_dac_4)
	Sets the DAC settings for each AUX LED.

int	ltc3208_set_aux_led_dac (struct ltc3208_dev *device, enum dac_options aux_dac, int aux_index)
	Sets the DAC settings for a specific AUX LED.

int	ltc3208_update_options (struct ltc3208_dev *device, bool is_force_2x, bool is_force_1p5x, bool is_dropout_disable, bool is_cam_high_enable, bool is_sub_enable)
	Updates the options set on the device.

int	ltc3208_set_cpo_2x (struct ltc3208_dev *device, bool is_force_2x)
	Sets the device's charge pump to output 2x of operating voltage.

int	ltc3208_set_1p5x (struct ltc3208_dev *device, bool is_force_1p5x)
	Sets the device's charge pump to output 1.5x of operating voltage.

int	ltc3208_set_droupout_disable (struct ltc3208_dev *device, bool is_dropout_disable)
	Enables RGB and AUX4 dropout signals.

int	ltc3208_set_cam_high (struct ltc3208_dev *device, bool is_cam_high_enable)
	Selects which CAM register to use.

int	ltc3208_set_sub_enable (struct ltc3208_dev *device, bool is_sub_enable)
	Selects if RGB or SUB is controled by ENRGBS pin.

Detailed Description

Implementation of LTC3208 Driver.

Author: Edelweise Escala (edelw.nosp@m.eise.nosp@m..esca.nosp@m.la@a.nosp@m.nalog.nosp@m..com)

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name of Analog Devices, Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
The use of this software may or may not infringe the patent rights of one or more patent holders. This license does not release you from the requirement that you obtain separate licenses from these patent holders to use this software.
Use of the software either in source or binary form, must be run on or directly connected to an Analog Devices Inc. component.

THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, INTELLECTUAL PROPERTY RIGHTS, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Function Documentation

◆ ltc3208_init()

int ltc3208_init	(	struct ltc3208_dev **	device,
		struct ltc3208_init_param	init_param )

Initializes the LTC3208 device structure.

Parameters

device	- The device structure to initialize.
init_param	- The initialization parameters.

Returns: 0 in case of success, negative error code otherwise.

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◆ ltc3208_reg_write()

int ltc3208_reg_write	(	struct ltc3208_dev *	device,
		uint8_t	reg_addr,
		uint8_t	reg_data )

Writes to the selected register on the device.

Parameters

device	- The device structure.
reg_addr	- The register sub-address.
reg_data	- The data to write into the register (8-bits wide)

Returns: 0 in case of success, negative error code otherwise.

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◆ ltc3208_remove()

int ltc3208_remove ( struct ltc3208_dev * device )

Deallocates the resources for the device structure.

Parameters

device - The device structure.

Returns: 0 in case of success, negative error code otherwise.

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◆ ltc3208_reset()

int ltc3208_reset ( struct ltc3208_dev * device )

Resets all register of the device.

Parameters

device - The device structure.

Returns: 0 in case of success, negative error code otherwise.

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◆ ltc3208_set_1p5x()

int ltc3208_set_1p5x	(	struct ltc3208_dev *	device,
		bool	is_force_1p5x )

Sets the device's charge pump to output 1.5x of operating voltage.

Parameters

device	- The device structure.
is_force_1p5x	- Sets the device to use 1.5x voltage.

Returns: 0 in case of success, negative error code otherwise.

◆ ltc3208_set_4_bit_dac()

int ltc3208_set_4_bit_dac	(	struct ltc3208_dev *	device,
		enum reg_options	reg_selected,
		uint8_t	current_level_high,
		uint8_t	current_level_low )

Sets the selected LED register's current strength.

Sets the selected 4 bit LED register's current strength.

Parameters

device	- The device structure.
reg_selected	- The enumeration value of the selected register.
current_level_high	- The current level for the high bits with 16 levels
current_level_low	- The current level for the low bits with 16 levels

Returns: 0 in case of success, negative error code otherwise.

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◆ ltc3208_set_8_bit_dac()

int ltc3208_set_8_bit_dac	(	struct ltc3208_dev *	device,
		enum reg_options	reg_selected,
		uint8_t	current_level )

Sets the selected LED register's current strength.

Sets the selected 8 bit LED register's current strength.

Parameters

device	- The device structure.
reg_selected	- The enumeration value of the selected register.
current_level	- The current level for the LED group with 256 levels

Returns: 0 in case of success, negative error code otherwise.

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◆ ltc3208_set_all_aux_led_dac()

int ltc3208_set_all_aux_led_dac	(	struct ltc3208_dev *	device,
		enum dac_options	aux_dac_1,
		enum dac_options	aux_dac_2,
		enum dac_options	aux_dac_3,
		enum dac_options	aux_dac_4 )

Sets the DAC settings for each AUX LED.

Parameters

device	- The device structure.
aux_dac_1	- The enumeration value of the selected DAC for AUX 1.
aux_dac_2	- The enumeration value of the selected DAC for AUX 2.
aux_dac_3	- The enumeration value of the selected DAC for AUX 3.
aux_dac_4	- The enumeration value of the selected DAC for AUX 4.

Returns: 0 in case of success, negative error code otherwise.

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◆ ltc3208_set_aux_led_dac()

int ltc3208_set_aux_led_dac	(	struct ltc3208_dev *	device,
		enum dac_options	aux_dac,
		int	aux_index )

Sets the DAC settings for a specific AUX LED.

Parameters

device	- The device structure.
aux_dac	- The enumeration value of the selected DAC for AUX.
aux_index	- The auxillary led index (0..3).

Returns: 0 in case of success, negative error code otherwise.

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◆ ltc3208_set_cam_high()

int ltc3208_set_cam_high	(	struct ltc3208_dev *	device,
		bool	is_cam_high_enable )

Selects which CAM register to use.

Parameters

device	- The device structure.
is_cam_high_enable	- Sets the device to enable camera high current.

Returns: 0 in case of success, negative error code otherwise.

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◆ ltc3208_set_cpo_2x()

int ltc3208_set_cpo_2x	(	struct ltc3208_dev *	device,
		bool	is_force_2x )

Sets the device's charge pump to output 2x of operating voltage.

Parameters

device	- The device structure.
is_force_2x	- Signals the device to use 2x voltage.

Returns: 0 in case of success, negative error code otherwise.

◆ ltc3208_set_droupout_disable()

int ltc3208_set_droupout_disable	(	struct ltc3208_dev *	device,
		bool	is_dropout_disable )

Enables RGB and AUX4 dropout signals.

Parameters

device	- The device structure.
is_dropout_disable	- Sets the device to disable RGB and AUX4 dropout signals.

Returns: 0 in case of success, negative error code otherwise.

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◆ ltc3208_set_sub_enable()

int ltc3208_set_sub_enable	(	struct ltc3208_dev *	device,
		bool	is_sub_enable )

Selects if RGB or SUB is controled by ENRGBS pin.

Parameters

device	- The device structure.
is_sub_enable	- Sets the device to enable SUB displays.

Returns: 0 in case of success, negative error code otherwise.

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◆ ltc3208_update_options()

int ltc3208_update_options	(	struct ltc3208_dev *	device,
		bool	is_force_2x,
		bool	is_force_1p5x,
		bool	is_dropout_disable,
		bool	is_cam_high_enable,
		bool	is_sub_enable )

Updates the options set on the device.

Parameters

device	- The device's structure.
is_force_2x	- Signals the device to use 2x voltage.
is_force_1p5x	- Sets the device to use 1.5x voltage.
is_dropout_disable	- Sets the device to use dropout.
is_cam_high_enable	- Sets the device to enable camera high current.
is_sub_enable	- Sets the device to enable rgb.

Returns: 0 in case of success, negative error code otherwise.

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Functions

Detailed Description

Function Documentation

◆ ltc3208_init()

◆ ltc3208_reg_write()

◆ ltc3208_remove()

◆ ltc3208_reset()

◆ ltc3208_set_1p5x()

◆ ltc3208_set_4_bit_dac()

◆ ltc3208_set_8_bit_dac()

◆ ltc3208_set_all_aux_led_dac()

◆ ltc3208_set_aux_led_dac()

◆ ltc3208_set_cam_high()

◆ ltc3208_set_cpo_2x()

◆ ltc3208_set_droupout_disable()

◆ ltc3208_set_sub_enable()

◆ ltc3208_update_options()