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Linux Kernel
3.7.1
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All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
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Linux Kernel
3.7.1
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#include <linux/interrupt.h>#include <linux/device.h>#include <linux/kernel.h>#include <linux/slab.h>#include <linux/spi/spi.h>#include <linux/err.h>#include <linux/module.h>#include <linux/iio/iio.h>#include <linux/iio/sysfs.h>#include <linux/iio/buffer.h>#include <linux/iio/trigger.h>#include <linux/iio/trigger_consumer.h>#include <linux/iio/triggered_buffer.h>#include <linux/iio/adc/ad_sigma_delta.h>#include <asm/unaligned.h>Go to the source code of this file.
Macros | |
| #define | AD_SD_COMM_CHAN_MASK 0x3 |
| #define | AD_SD_REG_COMM 0x00 |
| #define | AD_SD_REG_DATA 0x03 |
| #define AD_SD_COMM_CHAN_MASK 0x3 |
Definition at line 29 of file ad_sigma_delta.c.
| #define AD_SD_REG_COMM 0x00 |
Definition at line 31 of file ad_sigma_delta.c.
| #define AD_SD_REG_DATA 0x03 |
Definition at line 32 of file ad_sigma_delta.c.
| int ad_sd_calibrate_all | ( | struct ad_sigma_delta * | sigma_delta, |
| const struct ad_sd_calib_data * | cb, | ||
| unsigned int | n | ||
| ) |
ad_sd_calibrate_all() - Performs channel calibration : The sigma delta device : Array of channels and calibration type to perform
: Number of items in cb
Returns 0 on success, an error code otherwise.
Definition at line 223 of file ad_sigma_delta.c.
ad_sd_cleanup_buffer_and_trigger() - : The IIO device
Definition at line 528 of file ad_sigma_delta.c.
| int ad_sd_init | ( | struct ad_sigma_delta * | sigma_delta, |
| struct iio_dev * | indio_dev, | ||
| struct spi_device * | spi, | ||
| const struct ad_sigma_delta_info * | info | ||
| ) |
ad_sd_init() - Initializes a ad_sigma_delta struct : The ad_sigma_delta device : The IIO device which the Sigma Delta device is used for : The SPI device for the ad_sigma_delta device : Device specific callbacks and options
This function needs to be called before any other operations are performed on the ad_sigma_delta struct.
Definition at line 545 of file ad_sigma_delta.c.
| int ad_sd_read_reg | ( | struct ad_sigma_delta * | sigma_delta, |
| unsigned int | reg, | ||
| unsigned int | size, | ||
| unsigned int * | val | ||
| ) |
ad_sd_read_reg() - Read a register
: The sigma delta device : Address of the register : Size of the register (1-4) : Read value
Returns 0 on success, an error code otherwise.
Definition at line 146 of file ad_sigma_delta.c.
| void ad_sd_set_comm | ( | struct ad_sigma_delta * | sigma_delta, |
| uint8_t | comm | ||
| ) |
ad_sd_set_comm() - Set communications register
: The sigma delta device : New value for the communications register
Definition at line 40 of file ad_sigma_delta.c.
ad_sd_setup_buffer_and_trigger() - : The IIO device
Definition at line 505 of file ad_sigma_delta.c.
| int ad_sd_validate_trigger | ( | struct iio_dev * | indio_dev, |
| struct iio_trigger * | trig | ||
| ) |
ad_sd_validate_trigger() - validate_trigger callback for ad_sigma_delta devices : The IIO device : The new trigger
Returns: 0 if the 'trig' matches the trigger registered by the ad_sigma_delta device, -EINVAL otherwise.
Definition at line 431 of file ad_sigma_delta.c.
| int ad_sd_write_reg | ( | struct ad_sigma_delta * | sigma_delta, |
| unsigned int | reg, | ||
| unsigned int | size, | ||
| unsigned int | val | ||
| ) |
ad_sd_write_reg() - Write a register
: The sigma delta device : Address of the register : Size of the register (0-3) : Value to write to the register
Returns 0 on success, an error code otherwise.
Definition at line 58 of file ad_sigma_delta.c.
| int ad_sigma_delta_single_conversion | ( | struct iio_dev * | indio_dev, |
| const struct iio_chan_spec * | chan, | ||
| int * | val | ||
| ) |
ad_sigma_delta_single_conversion() - Performs a single data conversion : The IIO device : The conversion is done for this channel : Pointer to the location where to store the read value
Returns: 0 on success, an error value otherwise.
Definition at line 247 of file ad_sigma_delta.c.
| EXPORT_SYMBOL_GPL | ( | ad_sd_set_comm | ) |
| EXPORT_SYMBOL_GPL | ( | ad_sd_write_reg | ) |
| EXPORT_SYMBOL_GPL | ( | ad_sd_read_reg | ) |
| EXPORT_SYMBOL_GPL | ( | ad_sd_calibrate_all | ) |
| EXPORT_SYMBOL_GPL | ( | ad_sigma_delta_single_conversion | ) |
| EXPORT_SYMBOL_GPL | ( | ad_sd_validate_trigger | ) |
| EXPORT_SYMBOL_GPL | ( | ad_sd_setup_buffer_and_trigger | ) |
| EXPORT_SYMBOL_GPL | ( | ad_sd_cleanup_buffer_and_trigger | ) |
| EXPORT_SYMBOL_GPL | ( | ad_sd_init | ) |
| MODULE_AUTHOR | ( | "Lars-Peter Clausen <[email protected]>" | ) |
| MODULE_DESCRIPTION | ( | "Analog Devices Sigma-Delta ADCs" | ) |
| MODULE_LICENSE | ( | "GPL v2" | ) |
1.8.2