+++ /dev/null
-#ifndef SPI_ADIS16204_H_
-#define SPI_ADIS16204_H_
-
-#define ADIS16204_STARTUP_DELAY 220 /* ms */
-
-#define ADIS16204_FLASH_CNT 0x00 /* Flash memory write count */
-#define ADIS16204_SUPPLY_OUT 0x02 /* Output, power supply */
-#define ADIS16204_XACCL_OUT 0x04 /* Output, x-axis accelerometer */
-#define ADIS16204_YACCL_OUT 0x06 /* Output, y-axis accelerometer */
-#define ADIS16204_AUX_ADC 0x08 /* Output, auxiliary ADC input */
-#define ADIS16204_TEMP_OUT 0x0A /* Output, temperature */
-#define ADIS16204_X_PEAK_OUT 0x0C /* Twos complement */
-#define ADIS16204_Y_PEAK_OUT 0x0E /* Twos complement */
-#define ADIS16204_XACCL_NULL 0x10 /* Calibration, x-axis acceleration offset null */
-#define ADIS16204_YACCL_NULL 0x12 /* Calibration, y-axis acceleration offset null */
-#define ADIS16204_XACCL_SCALE 0x14 /* X-axis scale factor calibration register */
-#define ADIS16204_YACCL_SCALE 0x16 /* Y-axis scale factor calibration register */
-#define ADIS16204_XY_RSS_OUT 0x18 /* XY combined acceleration (RSS) */
-#define ADIS16204_XY_PEAK_OUT 0x1A /* Peak, XY combined output (RSS) */
-#define ADIS16204_CAP_BUF_1 0x1C /* Capture buffer output register 1 */
-#define ADIS16204_CAP_BUF_2 0x1E /* Capture buffer output register 2 */
-#define ADIS16204_ALM_MAG1 0x20 /* Alarm 1 amplitude threshold */
-#define ADIS16204_ALM_MAG2 0x22 /* Alarm 2 amplitude threshold */
-#define ADIS16204_ALM_CTRL 0x28 /* Alarm control */
-#define ADIS16204_CAPT_PNTR 0x2A /* Capture register address pointer */
-#define ADIS16204_AUX_DAC 0x30 /* Auxiliary DAC data */
-#define ADIS16204_GPIO_CTRL 0x32 /* General-purpose digital input/output control */
-#define ADIS16204_MSC_CTRL 0x34 /* Miscellaneous control */
-#define ADIS16204_SMPL_PRD 0x36 /* Internal sample period (rate) control */
-#define ADIS16204_AVG_CNT 0x38 /* Operation, filter configuration */
-#define ADIS16204_SLP_CNT 0x3A /* Operation, sleep mode control */
-#define ADIS16204_DIAG_STAT 0x3C /* Diagnostics, system status register */
-#define ADIS16204_GLOB_CMD 0x3E /* Operation, system command register */
-
-/* MSC_CTRL */
-#define ADIS16204_MSC_CTRL_PWRUP_SELF_TEST BIT(10) /* Self-test at power-on: 1 = disabled, 0 = enabled */
-#define ADIS16204_MSC_CTRL_SELF_TEST_EN BIT(8) /* Self-test enable */
-#define ADIS16204_MSC_CTRL_DATA_RDY_EN BIT(2) /* Data-ready enable: 1 = enabled, 0 = disabled */
-#define ADIS16204_MSC_CTRL_ACTIVE_HIGH BIT(1) /* Data-ready polarity: 1 = active high, 0 = active low */
-#define ADIS16204_MSC_CTRL_DATA_RDY_DIO2 BIT(0) /* Data-ready line selection: 1 = DIO2, 0 = DIO1 */
-
-/* DIAG_STAT */
-#define ADIS16204_DIAG_STAT_ALARM2 BIT(9) /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */
-#define ADIS16204_DIAG_STAT_ALARM1 BIT(8) /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */
-#define ADIS16204_DIAG_STAT_SELFTEST_FAIL_BIT 5 /* Self-test diagnostic error flag: 1 = error condition,
- 0 = normal operation */
-#define ADIS16204_DIAG_STAT_SPI_FAIL_BIT 3 /* SPI communications failure */
-#define ADIS16204_DIAG_STAT_FLASH_UPT_BIT 2 /* Flash update failure */
-#define ADIS16204_DIAG_STAT_POWER_HIGH_BIT 1 /* Power supply above 3.625 V */
-#define ADIS16204_DIAG_STAT_POWER_LOW_BIT 0 /* Power supply below 2.975 V */
-
-/* GLOB_CMD */
-#define ADIS16204_GLOB_CMD_SW_RESET BIT(7)
-#define ADIS16204_GLOB_CMD_CLEAR_STAT BIT(4)
-#define ADIS16204_GLOB_CMD_FACTORY_CAL BIT(1)
-
-#define ADIS16204_ERROR_ACTIVE BIT(14)
-
-enum adis16204_scan {
- ADIS16204_SCAN_ACC_X,
- ADIS16204_SCAN_ACC_Y,
- ADIS16204_SCAN_ACC_XY,
- ADIS16204_SCAN_SUPPLY,
- ADIS16204_SCAN_AUX_ADC,
- ADIS16204_SCAN_TEMP,
-};
-
-#endif /* SPI_ADIS16204_H_ */
+++ /dev/null
-/*
- * ADIS16204 Programmable High-g Digital Impact Sensor and Recorder
- *
- * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/delay.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/list.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/iio/buffer.h>
-#include <linux/iio/imu/adis.h>
-
-#include "adis16204.h"
-
-/* Unique to this driver currently */
-
-static const u8 adis16204_addresses[][2] = {
- [ADIS16204_SCAN_ACC_X] = { ADIS16204_XACCL_NULL, ADIS16204_X_PEAK_OUT },
- [ADIS16204_SCAN_ACC_Y] = { ADIS16204_YACCL_NULL, ADIS16204_Y_PEAK_OUT },
- [ADIS16204_SCAN_ACC_XY] = { 0, ADIS16204_XY_PEAK_OUT },
-};
-
-static int adis16204_read_raw(struct iio_dev *indio_dev,
- struct iio_chan_spec const *chan,
- int *val, int *val2,
- long mask)
-{
- struct adis *st = iio_priv(indio_dev);
- int ret;
- int bits;
- u8 addr;
- s16 val16;
- int addrind;
-
- switch (mask) {
- case IIO_CHAN_INFO_RAW:
- return adis_single_conversion(indio_dev, chan,
- ADIS16204_ERROR_ACTIVE, val);
- case IIO_CHAN_INFO_SCALE:
- switch (chan->type) {
- case IIO_VOLTAGE:
- if (chan->channel == 0) {
- *val = 1;
- *val2 = 220000; /* 1.22 mV */
- } else {
- *val = 0;
- *val2 = 610000; /* 0.61 mV */
- }
- return IIO_VAL_INT_PLUS_MICRO;
- case IIO_TEMP:
- *val = -470; /* 0.47 C */
- *val2 = 0;
- return IIO_VAL_INT_PLUS_MICRO;
- case IIO_ACCEL:
- *val = 0;
- switch (chan->channel2) {
- case IIO_MOD_X:
- case IIO_MOD_ROOT_SUM_SQUARED_X_Y:
- *val2 = IIO_G_TO_M_S_2(17125); /* 17.125 mg */
- break;
- case IIO_MOD_Y:
- case IIO_MOD_Z:
- *val2 = IIO_G_TO_M_S_2(8407); /* 8.407 mg */
- break;
- }
- return IIO_VAL_INT_PLUS_MICRO;
- default:
- return -EINVAL;
- }
- break;
- case IIO_CHAN_INFO_OFFSET:
- *val = 25000 / -470 - 1278; /* 25 C = 1278 */
- return IIO_VAL_INT;
- case IIO_CHAN_INFO_CALIBBIAS:
- case IIO_CHAN_INFO_PEAK:
- if (mask == IIO_CHAN_INFO_CALIBBIAS) {
- bits = 12;
- addrind = 0;
- } else { /* PEAK_SEPARATE */
- bits = 14;
- addrind = 1;
- }
- mutex_lock(&indio_dev->mlock);
- addr = adis16204_addresses[chan->scan_index][addrind];
- ret = adis_read_reg_16(st, addr, &val16);
- if (ret) {
- mutex_unlock(&indio_dev->mlock);
- return ret;
- }
- val16 &= (1 << bits) - 1;
- val16 = (s16)(val16 << (16 - bits)) >> (16 - bits);
- *val = val16;
- mutex_unlock(&indio_dev->mlock);
- return IIO_VAL_INT;
- }
- return -EINVAL;
-}
-
-static int adis16204_write_raw(struct iio_dev *indio_dev,
- struct iio_chan_spec const *chan,
- int val,
- int val2,
- long mask)
-{
- struct adis *st = iio_priv(indio_dev);
- int bits;
- s16 val16;
- u8 addr;
-
- switch (mask) {
- case IIO_CHAN_INFO_CALIBBIAS:
- switch (chan->type) {
- case IIO_ACCEL:
- bits = 12;
- break;
- default:
- return -EINVAL;
- }
- val16 = val & ((1 << bits) - 1);
- addr = adis16204_addresses[chan->scan_index][1];
- return adis_write_reg_16(st, addr, val16);
- }
- return -EINVAL;
-}
-
-static const struct iio_chan_spec adis16204_channels[] = {
- ADIS_SUPPLY_CHAN(ADIS16204_SUPPLY_OUT, ADIS16204_SCAN_SUPPLY, 0, 12),
- ADIS_AUX_ADC_CHAN(ADIS16204_AUX_ADC, ADIS16204_SCAN_AUX_ADC, 0, 12),
- ADIS_TEMP_CHAN(ADIS16204_TEMP_OUT, ADIS16204_SCAN_TEMP, 0, 12),
- ADIS_ACCEL_CHAN(X, ADIS16204_XACCL_OUT, ADIS16204_SCAN_ACC_X,
- BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK),
- 0, 14),
- ADIS_ACCEL_CHAN(Y, ADIS16204_YACCL_OUT, ADIS16204_SCAN_ACC_Y,
- BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK),
- 0, 14),
- ADIS_ACCEL_CHAN(ROOT_SUM_SQUARED_X_Y, ADIS16204_XY_RSS_OUT,
- ADIS16204_SCAN_ACC_XY, BIT(IIO_CHAN_INFO_PEAK), 0, 14),
- IIO_CHAN_SOFT_TIMESTAMP(5),
-};
-
-static const struct iio_info adis16204_info = {
- .read_raw = &adis16204_read_raw,
- .write_raw = &adis16204_write_raw,
- .update_scan_mode = adis_update_scan_mode,
- .driver_module = THIS_MODULE,
-};
-
-static const char * const adis16204_status_error_msgs[] = {
- [ADIS16204_DIAG_STAT_SELFTEST_FAIL_BIT] = "Self test failure",
- [ADIS16204_DIAG_STAT_SPI_FAIL_BIT] = "SPI failure",
- [ADIS16204_DIAG_STAT_FLASH_UPT_BIT] = "Flash update failed",
- [ADIS16204_DIAG_STAT_POWER_HIGH_BIT] = "Power supply above 3.625V",
- [ADIS16204_DIAG_STAT_POWER_LOW_BIT] = "Power supply below 2.975V",
-};
-
-static const struct adis_data adis16204_data = {
- .read_delay = 20,
- .msc_ctrl_reg = ADIS16204_MSC_CTRL,
- .glob_cmd_reg = ADIS16204_GLOB_CMD,
- .diag_stat_reg = ADIS16204_DIAG_STAT,
-
- .self_test_mask = ADIS16204_MSC_CTRL_SELF_TEST_EN,
- .startup_delay = ADIS16204_STARTUP_DELAY,
-
- .status_error_msgs = adis16204_status_error_msgs,
- .status_error_mask = BIT(ADIS16204_DIAG_STAT_SELFTEST_FAIL_BIT) |
- BIT(ADIS16204_DIAG_STAT_SPI_FAIL_BIT) |
- BIT(ADIS16204_DIAG_STAT_FLASH_UPT_BIT) |
- BIT(ADIS16204_DIAG_STAT_POWER_HIGH_BIT) |
- BIT(ADIS16204_DIAG_STAT_POWER_LOW_BIT),
-};
-
-static int adis16204_probe(struct spi_device *spi)
-{
- int ret;
- struct adis *st;
- struct iio_dev *indio_dev;
-
- /* setup the industrialio driver allocated elements */
- indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
- if (!indio_dev)
- return -ENOMEM;
- st = iio_priv(indio_dev);
- /* this is only used for removal purposes */
- spi_set_drvdata(spi, indio_dev);
-
- indio_dev->name = spi->dev.driver->name;
- indio_dev->dev.parent = &spi->dev;
- indio_dev->info = &adis16204_info;
- indio_dev->channels = adis16204_channels;
- indio_dev->num_channels = ARRAY_SIZE(adis16204_channels);
- indio_dev->modes = INDIO_DIRECT_MODE;
-
- ret = adis_init(st, indio_dev, spi, &adis16204_data);
- if (ret)
- return ret;
-
- ret = adis_setup_buffer_and_trigger(st, indio_dev, NULL);
- if (ret)
- return ret;
-
- /* Get the device into a sane initial state */
- ret = adis_initial_startup(st);
- if (ret)
- goto error_cleanup_buffer_trigger;
- ret = iio_device_register(indio_dev);
- if (ret)
- goto error_cleanup_buffer_trigger;
-
- return 0;
-
-error_cleanup_buffer_trigger:
- adis_cleanup_buffer_and_trigger(st, indio_dev);
- return ret;
-}
-
-static int adis16204_remove(struct spi_device *spi)
-{
- struct iio_dev *indio_dev = spi_get_drvdata(spi);
- struct adis *st = iio_priv(indio_dev);
-
- iio_device_unregister(indio_dev);
- adis_cleanup_buffer_and_trigger(st, indio_dev);
-
- return 0;
-}
-
-static struct spi_driver adis16204_driver = {
- .driver = {
- .name = "adis16204",
- },
- .probe = adis16204_probe,
- .remove = adis16204_remove,
-};
-module_spi_driver(adis16204_driver);
-
-MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
-MODULE_DESCRIPTION("ADIS16204 High-g Digital Impact Sensor and Recorder");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:adis16204");
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