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Diffstat (limited to 'drivers/staging/iio/accel/adis16201.c')
-rw-r--r--drivers/staging/iio/accel/adis16201.c385
1 files changed, 0 insertions, 385 deletions
diff --git a/drivers/staging/iio/accel/adis16201.c b/drivers/staging/iio/accel/adis16201.c
deleted file mode 100644
index 0fae8aaf1cf4..000000000000
--- a/drivers/staging/iio/accel/adis16201.c
+++ /dev/null
@@ -1,385 +0,0 @@
-/*
- * ADIS16201 Dual-Axis Digital Inclinometer and Accelerometer
- *
- * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/delay.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/slab.h>
-#include <linux/spi/spi.h>
-#include <linux/sysfs.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/iio/buffer.h>
-#include <linux/iio/imu/adis.h>
-
-#define ADIS16201_STARTUP_DELAY 220 /* ms */
-
-/* Flash memory write count */
-#define ADIS16201_FLASH_CNT 0x00
-
-/* Output, power supply */
-#define ADIS16201_SUPPLY_OUT 0x02
-
-/* Output, x-axis accelerometer */
-#define ADIS16201_XACCL_OUT 0x04
-
-/* Output, y-axis accelerometer */
-#define ADIS16201_YACCL_OUT 0x06
-
-/* Output, auxiliary ADC input */
-#define ADIS16201_AUX_ADC 0x08
-
-/* Output, temperature */
-#define ADIS16201_TEMP_OUT 0x0A
-
-/* Output, x-axis inclination */
-#define ADIS16201_XINCL_OUT 0x0C
-
-/* Output, y-axis inclination */
-#define ADIS16201_YINCL_OUT 0x0E
-
-/* Calibration, x-axis acceleration offset */
-#define ADIS16201_XACCL_OFFS 0x10
-
-/* Calibration, y-axis acceleration offset */
-#define ADIS16201_YACCL_OFFS 0x12
-
-/* x-axis acceleration scale factor */
-#define ADIS16201_XACCL_SCALE 0x14
-
-/* y-axis acceleration scale factor */
-#define ADIS16201_YACCL_SCALE 0x16
-
-/* Calibration, x-axis inclination offset */
-#define ADIS16201_XINCL_OFFS 0x18
-
-/* Calibration, y-axis inclination offset */
-#define ADIS16201_YINCL_OFFS 0x1A
-
-/* x-axis inclination scale factor */
-#define ADIS16201_XINCL_SCALE 0x1C
-
-/* y-axis inclination scale factor */
-#define ADIS16201_YINCL_SCALE 0x1E
-
-/* Alarm 1 amplitude threshold */
-#define ADIS16201_ALM_MAG1 0x20
-
-/* Alarm 2 amplitude threshold */
-#define ADIS16201_ALM_MAG2 0x22
-
-/* Alarm 1, sample period */
-#define ADIS16201_ALM_SMPL1 0x24
-
-/* Alarm 2, sample period */
-#define ADIS16201_ALM_SMPL2 0x26
-
-/* Alarm control */
-#define ADIS16201_ALM_CTRL 0x28
-
-/* Auxiliary DAC data */
-#define ADIS16201_AUX_DAC 0x30
-
-/* General-purpose digital input/output control */
-#define ADIS16201_GPIO_CTRL 0x32
-
-/* Miscellaneous control */
-#define ADIS16201_MSC_CTRL 0x34
-
-/* Internal sample period (rate) control */
-#define ADIS16201_SMPL_PRD 0x36
-
-/* Operation, filter configuration */
-#define ADIS16201_AVG_CNT 0x38
-
-/* Operation, sleep mode control */
-#define ADIS16201_SLP_CNT 0x3A
-
-/* Diagnostics, system status register */
-#define ADIS16201_DIAG_STAT 0x3C
-
-/* Operation, system command register */
-#define ADIS16201_GLOB_CMD 0x3E
-
-/* MSC_CTRL */
-
-/* Self-test enable */
-#define ADIS16201_MSC_CTRL_SELF_TEST_EN BIT(8)
-
-/* Data-ready enable: 1 = enabled, 0 = disabled */
-#define ADIS16201_MSC_CTRL_DATA_RDY_EN BIT(2)
-
-/* Data-ready polarity: 1 = active high, 0 = active low */
-#define ADIS16201_MSC_CTRL_ACTIVE_HIGH BIT(1)
-
-/* Data-ready line selection: 1 = DIO1, 0 = DIO0 */
-#define ADIS16201_MSC_CTRL_DATA_RDY_DIO1 BIT(0)
-
-/* DIAG_STAT */
-
-/* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */
-#define ADIS16201_DIAG_STAT_ALARM2 BIT(9)
-
-/* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */
-#define ADIS16201_DIAG_STAT_ALARM1 BIT(8)
-
-/* SPI communications failure */
-#define ADIS16201_DIAG_STAT_SPI_FAIL_BIT 3
-
-/* Flash update failure */
-#define ADIS16201_DIAG_STAT_FLASH_UPT_BIT 2
-
-/* Power supply above 3.625 V */
-#define ADIS16201_DIAG_STAT_POWER_HIGH_BIT 1
-
-/* Power supply below 3.15 V */
-#define ADIS16201_DIAG_STAT_POWER_LOW_BIT 0
-
-/* GLOB_CMD */
-
-#define ADIS16201_GLOB_CMD_SW_RESET BIT(7)
-#define ADIS16201_GLOB_CMD_FACTORY_CAL BIT(1)
-
-#define ADIS16201_ERROR_ACTIVE BIT(14)
-
-enum adis16201_scan {
- ADIS16201_SCAN_ACC_X,
- ADIS16201_SCAN_ACC_Y,
- ADIS16201_SCAN_INCLI_X,
- ADIS16201_SCAN_INCLI_Y,
- ADIS16201_SCAN_SUPPLY,
- ADIS16201_SCAN_AUX_ADC,
- ADIS16201_SCAN_TEMP,
-};
-
-static const u8 adis16201_addresses[] = {
- [ADIS16201_SCAN_ACC_X] = ADIS16201_XACCL_OFFS,
- [ADIS16201_SCAN_ACC_Y] = ADIS16201_YACCL_OFFS,
- [ADIS16201_SCAN_INCLI_X] = ADIS16201_XINCL_OFFS,
- [ADIS16201_SCAN_INCLI_Y] = ADIS16201_YINCL_OFFS,
-};
-
-static int adis16201_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;
-
- switch (mask) {
- case IIO_CHAN_INFO_RAW:
- return adis_single_conversion(indio_dev, chan,
- ADIS16201_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; /* 0.610 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;
- *val2 = IIO_G_TO_M_S_2(462400); /* 0.4624 mg */
- return IIO_VAL_INT_PLUS_NANO;
- case IIO_INCLI:
- *val = 0;
- *val2 = 100000; /* 0.1 degree */
- 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:
- switch (chan->type) {
- case IIO_ACCEL:
- bits = 12;
- break;
- case IIO_INCLI:
- bits = 9;
- break;
- default:
- return -EINVAL;
- }
- addr = adis16201_addresses[chan->scan_index];
- ret = adis_read_reg_16(st, addr, &val16);
- if (ret)
- return ret;
- val16 &= (1 << bits) - 1;
- val16 = (s16)(val16 << (16 - bits)) >> (16 - bits);
- *val = val16;
- return IIO_VAL_INT;
- }
-
- return -EINVAL;
-}
-
-static int adis16201_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;
- case IIO_INCLI:
- bits = 9;
- break;
- default:
- return -EINVAL;
- }
- val16 = val & ((1 << bits) - 1);
- addr = adis16201_addresses[chan->scan_index];
- return adis_write_reg_16(st, addr, val16);
- }
-
- return -EINVAL;
-}
-
-static const struct iio_chan_spec adis16201_channels[] = {
- ADIS_SUPPLY_CHAN(ADIS16201_SUPPLY_OUT, ADIS16201_SCAN_SUPPLY, 0, 12),
- ADIS_TEMP_CHAN(ADIS16201_TEMP_OUT, ADIS16201_SCAN_TEMP, 0, 12),
- ADIS_ACCEL_CHAN(X, ADIS16201_XACCL_OUT, ADIS16201_SCAN_ACC_X,
- BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
- ADIS_ACCEL_CHAN(Y, ADIS16201_YACCL_OUT, ADIS16201_SCAN_ACC_Y,
- BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
- ADIS_AUX_ADC_CHAN(ADIS16201_AUX_ADC, ADIS16201_SCAN_AUX_ADC, 0, 12),
- ADIS_INCLI_CHAN(X, ADIS16201_XINCL_OUT, ADIS16201_SCAN_INCLI_X,
- BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
- ADIS_INCLI_CHAN(X, ADIS16201_YINCL_OUT, ADIS16201_SCAN_INCLI_Y,
- BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
- IIO_CHAN_SOFT_TIMESTAMP(7)
-};
-
-static const struct iio_info adis16201_info = {
- .read_raw = adis16201_read_raw,
- .write_raw = adis16201_write_raw,
- .update_scan_mode = adis_update_scan_mode,
-};
-
-static const char * const adis16201_status_error_msgs[] = {
- [ADIS16201_DIAG_STAT_SPI_FAIL_BIT] = "SPI failure",
- [ADIS16201_DIAG_STAT_FLASH_UPT_BIT] = "Flash update failed",
- [ADIS16201_DIAG_STAT_POWER_HIGH_BIT] = "Power supply above 3.625V",
- [ADIS16201_DIAG_STAT_POWER_LOW_BIT] = "Power supply below 3.15V",
-};
-
-static const struct adis_data adis16201_data = {
- .read_delay = 20,
- .msc_ctrl_reg = ADIS16201_MSC_CTRL,
- .glob_cmd_reg = ADIS16201_GLOB_CMD,
- .diag_stat_reg = ADIS16201_DIAG_STAT,
-
- .self_test_mask = ADIS16201_MSC_CTRL_SELF_TEST_EN,
- .self_test_no_autoclear = true,
- .startup_delay = ADIS16201_STARTUP_DELAY,
-
- .status_error_msgs = adis16201_status_error_msgs,
- .status_error_mask = BIT(ADIS16201_DIAG_STAT_SPI_FAIL_BIT) |
- BIT(ADIS16201_DIAG_STAT_FLASH_UPT_BIT) |
- BIT(ADIS16201_DIAG_STAT_POWER_HIGH_BIT) |
- BIT(ADIS16201_DIAG_STAT_POWER_LOW_BIT),
-};
-
-static int adis16201_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 = &adis16201_info;
-
- indio_dev->channels = adis16201_channels;
- indio_dev->num_channels = ARRAY_SIZE(adis16201_channels);
- indio_dev->modes = INDIO_DIRECT_MODE;
-
- ret = adis_init(st, indio_dev, spi, &adis16201_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 < 0)
- goto error_cleanup_buffer_trigger;
-
- return 0;
-
-error_cleanup_buffer_trigger:
- adis_cleanup_buffer_and_trigger(st, indio_dev);
- return ret;
-}
-
-static int adis16201_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 adis16201_driver = {
- .driver = {
- .name = "adis16201",
- },
- .probe = adis16201_probe,
- .remove = adis16201_remove,
-};
-module_spi_driver(adis16201_driver);
-
-MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices ADIS16201 Dual-Axis Digital Inclinometer and Accelerometer");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:adis16201");
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.