linux/drivers/mxc/pmic/mc13783/pmic_adc_defs.h File Reference

This header contains all defines for PMIC(mc13783) ADC driver. More...

Data Structures
struct	t_adc_param
struct	t_monitoring_param
Typedefs
typedef enum adc_state	t_adc_state
typedef enum reading_mode	t_reading_mode
typedef enum check_mode	t_check_mode
Enumerations
enum	adc_state {   ADC_FREE,   ADC_USED,   ADC_MONITORING }
enum	reading_mode {   M_LITHIUM_CELL = 0x000001,   M_CHARGE_CURRENT = 0x000002,   M_BATTERY_CURRENT = 0x000004,   M_THERMISTOR = 0x000008,   M_DIE_TEMPERATURE = 0x000010,   M_UID = 0x000020,   M_LITHIUM_CELL = 0x000001,   M_CHARGE_CURRENT = 0x000002,   M_BATTERY_CURRENT = 0x000004 }
enum	check_mode {   CHECK_LOW,   CHECK_HIGH,   CHECK_LOW_OR_HIGH }
Functions
static int	pmic_adc_filter (t_touch_screen *ts_curr)
int	mc13783_adc_request (bool read_ts)
void	update_buffer (void)
int	mc13783_adc_release (int adc_index)
t_reading_mode	mc13783_set_read_mode (t_channel channel)
PMIC_STATUS	mc13783_adc_read_ts (t_touch_screen *touch_sample, int wait_tsi)

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Detailed Description

This header contains all defines for PMIC(mc13783) ADC driver.

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Typedef Documentation

typedef enum adc_state t_adc_state

Define state mode of ADC.

typedef enum check_mode t_check_mode

This enumeration, is used to configure the monitoring mode.

typedef enum reading_mode t_reading_mode

This enumeration, is used to configure the mode of ADC.

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Enumeration Type Documentation

enum adc_state

Define state mode of ADC.

Enumerator:

ADC_FREE	Free.
ADC_USED	Used.
ADC_MONITORING	Monitoring

enum check_mode

This enumeration, is used to configure the monitoring mode.

Enumerator:

CHECK_LOW	Comparator low level
CHECK_HIGH	Comparator high level
CHECK_LOW_OR_HIGH	Comparator low or high level

enum reading_mode

This enumeration, is used to configure the mode of ADC.

Enumerator:

M_LITHIUM_CELL	Enables lithium cell reading
M_CHARGE_CURRENT	Enables charge current reading
M_BATTERY_CURRENT	Enables battery current reading
M_THERMISTOR	Enables thermistor reading
M_DIE_TEMPERATURE	Enables die temperature reading
M_UID	Enables UID reading

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Function Documentation

PMIC_STATUS mc13783_adc_read_ts	(	t_touch_screen *	ts_value,
		int	wait_tsi
	)

This function read the touch screen value.

Parameters:

	touch_sample	return value of touch screen
	wait_tsi	if true, this function is synchronous (wait in TSI event).

Returns:

This function returns 0.

This function read the touch screen value.

Parameters:

	ts_value	return value of touch screen
	wait_tsi	if true, this function is synchronous (wait in TSI event).

Returns:

This function returns 0.

References t_touch_screen::contact_resistance, mc13783_adc_convert(), mc13783_adc_init_param(), t_adc_param::read_ts, suspend_flag, t_adc_param::ts_value, t_adc_param::wait_tsi, t_touch_screen::x_position, t_touch_screen::x_position1, t_touch_screen::x_position2, t_touch_screen::x_position3, t_touch_screen::y_position, t_touch_screen::y_position1, t_touch_screen::y_position2, and t_touch_screen::y_position3.

Referenced by pmic_adc_get_touch_sample().

int mc13783_adc_release

(

int

adc_index

)

This function release an ADC.

Parameters:

adc_index

index of ADC to be released.

Returns:

This function returns 0 if successful.

References ADC_FREE, ADC_MONITORING, ADC_USED, suspend_flag, suspendq, and swait.

Referenced by mc13783_adc_convert(), and pmic_adc_deactive_comparator().

int mc13783_adc_request

(

bool

read_ts

)

This function request a ADC.

Returns:

This function returns index of ADC to be used (0 or 1) if successful. return -1 if error.

References ADC_USED.

Referenced by mc13783_adc_convert(), and pmic_adc_active_comparator().

t_reading_mode mc13783_set_read_mode

(

t_channel

channel

)

This function select the required read_mode for a specific channel.

Parameters:

channel

The channel to be sampled

Returns:

This function returns the requires read_mode

References M_BATTERY_CURRENT, M_CHARGE_CURRENT, M_DIE_TEMPERATURE, M_LITHIUM_CELL, M_THERMISTOR, and M_UID.

Referenced by pmic_adc_convert(), and pmic_adc_convert_8x().

static int pmic_adc_filter

(

t_touch_screen *

ts_curr

)

[static]

This function performs filtering and rejection of excessive noise prone samples.

Parameters:

ts_curr

Touch screen value

Returns:

This function returns 0 on success, -1 otherwise.

void update_buffer

(

void

)

This function is used to update buffer of touch screen value in read mode.