spear_adc.c File Reference

#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/io.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/completion.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>

Go to the source code of this file.

Data Structures
struct	adc_regs_spear3xx
struct	chan_data
struct	adc_regs_spear6xx
struct	spear_adc_info

Macros
#define	SCAN_RATE_LO(x)   ((x) & 0xFFFF)
#define	SCAN_RATE_HI(x)   (((x) >> 0x10) & 0xFFFF)
#define	CLK_LOW(x)   (((x) & 0xf) << 0)
#define	CLK_HIGH(x)   (((x) & 0xf) << 4)
#define	START_CONVERSION   (1 << 0)
#define	CHANNEL_NUM(x)   ((x) << 1)
#define	ADC_ENABLE   (1 << 4)
#define	AVG_SAMPLE(x)   ((x) << 5)
#define	VREF_INTERNAL   (1 << 9)
#define	DATA_MASK   0x03ff
#define	DATA_BITS   10
#define	MOD_NAME   "spear-adc"
#define	ADC_CHANNEL_NUM   8
#define	CLK_MIN   2500000
#define	CLK_MAX   20000000
#define	SPEAR_ADC_CHAN(idx)

Functions
	MODULE_DEVICE_TABLE (of, spear_adc_dt_ids)
	module_platform_driver (spear_adc_driver)
	MODULE_AUTHOR ("Stefan Roese <sr@denx.de>")
	MODULE_DESCRIPTION ("SPEAr ADC driver")
	MODULE_LICENSE ("GPL")

Macro Definition Documentation

#define ADC_CHANNEL_NUM   8

Definition at line 46 of file spear_adc.c.

#define ADC_ENABLE   (1 << 4)

Definition at line 37 of file spear_adc.c.

#define AVG_SAMPLE

(

x

)

((x) << 5)

Definition at line 38 of file spear_adc.c.

#define CHANNEL_NUM

(

x

)

((x) << 1)

Definition at line 36 of file spear_adc.c.

#define CLK_HIGH

(

x

)

(((x) & 0xf) << 4)

Definition at line 32 of file spear_adc.c.

#define CLK_LOW

(

x

)

(((x) & 0xf) << 0)

Definition at line 31 of file spear_adc.c.

#define CLK_MAX   20000000

Definition at line 49 of file spear_adc.c.

#define CLK_MIN   2500000

Definition at line 48 of file spear_adc.c.

#define DATA_BITS   10

Definition at line 42 of file spear_adc.c.

#define DATA_MASK   0x03ff

Definition at line 41 of file spear_adc.c.

#define MOD_NAME   "spear-adc"

Definition at line 44 of file spear_adc.c.

#define SCAN_RATE_HI

(

x

)

(((x) >> 0x10) & 0xFFFF)

Definition at line 30 of file spear_adc.c.

#define SCAN_RATE_LO

(

x

)

((x) & 0xFFFF)

Definition at line 29 of file spear_adc.c.

#define SPEAR_ADC_CHAN

(

idx

)

Value:

{               \
    .type = IIO_VOLTAGE,                \
    .indexed = 1,                   \
    .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |   \
    IIO_CHAN_INFO_SCALE_SHARED_BIT,         \
    .channel = idx,                 \
    .scan_type = {                  \
        .sign = 'u',                \
        .storagebits = 16,          \
    },                      \
}

Definition at line 180 of file spear_adc.c.

#define START_CONVERSION   (1 << 0)

Definition at line 35 of file spear_adc.c.

#define VREF_INTERNAL   (1 << 9)

Definition at line 39 of file spear_adc.c.

Function Documentation

MODULE_AUTHOR

(

"Stefan Roese <sr@denx.de>"

)

MODULE_DESCRIPTION

(

"SPEAr ADC driver"

)

MODULE_DEVICE_TABLE	(	of	,
		spear_adc_dt_ids
	)

MODULE_LICENSE

(

"GPL"

)

module_platform_driver

(

spear_adc_driver

)