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staging:iio:adis16220: Remove adis16220 driver 

The ADIS16220 part has been obsoleted, which makes it hard to get the
hardware to even test the driver. Considering this there is no expectation
that the driver will be cleaned up and be able to move out of staging, so
remove the driver.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Lars-Peter Clausen 2016-03-07 15:22:32 +01:00 committed by Jonathan Cameron
parent 88ae3aedb8
commit 2bcdb3f2e0
4 changed files with 0 additions and 648 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/staging/iio/accel/Kconfig
View File

@ -39,17 +39,6 @@ config ADIS16209
To compile this driver as a module, say M here: the module will be
called adis16209.
config ADIS16220
tristate "Analog Devices ADIS16220 Programmable Digital Vibration Sensor"
depends on SPI
select IIO_ADIS_LIB
help
Say Y here to build support for Analog Devices adis16220 programmable
digital vibration sensor.
To compile this driver as a module, say M here: the module will be
called adis16220.
config ADIS16240
tristate "Analog Devices ADIS16240 Programmable Impact Sensor and Recorder"
depends on SPI

3
drivers/staging/iio/accel/Makefile
View File

@ -11,9 +11,6 @@ obj-$(CONFIG_ADIS16203) += adis16203.o
adis16209-y := adis16209_core.o
obj-$(CONFIG_ADIS16209) += adis16209.o
adis16220-y := adis16220_core.o
obj-$(CONFIG_ADIS16220) += adis16220.o
adis16240-y := adis16240_core.o
obj-$(CONFIG_ADIS16240) += adis16240.o

140
drivers/staging/iio/accel/adis16220.h
View File

@ -1,140 +0,0 @@
#ifndef SPI_ADIS16220_H_
#define SPI_ADIS16220_H_
#include <linux/iio/imu/adis.h>
#define ADIS16220_STARTUP_DELAY 220 /* ms */
/* Flash memory write count */
#define ADIS16220_FLASH_CNT 0x00
/* Control, acceleration offset adjustment control */
#define ADIS16220_ACCL_NULL 0x02
/* Control, AIN1 offset adjustment control */
#define ADIS16220_AIN1_NULL 0x04
/* Control, AIN2 offset adjustment control */
#define ADIS16220_AIN2_NULL 0x06
/* Output, power supply during capture */
#define ADIS16220_CAPT_SUPPLY 0x0A
/* Output, temperature during capture */
#define ADIS16220_CAPT_TEMP 0x0C
/* Output, peak acceleration during capture */
#define ADIS16220_CAPT_PEAKA 0x0E
/* Output, peak AIN1 level during capture */
#define ADIS16220_CAPT_PEAK1 0x10
/* Output, peak AIN2 level during capture */
#define ADIS16220_CAPT_PEAK2 0x12
/* Output, capture buffer for acceleration */
#define ADIS16220_CAPT_BUFA 0x14
/* Output, capture buffer for AIN1 */
#define ADIS16220_CAPT_BUF1 0x16
/* Output, capture buffer for AIN2 */
#define ADIS16220_CAPT_BUF2 0x18
/* Control, capture buffer address pointer */
#define ADIS16220_CAPT_PNTR 0x1A
/* Control, capture control register */
#define ADIS16220_CAPT_CTRL 0x1C
/* Control, capture period (automatic mode) */
#define ADIS16220_CAPT_PRD 0x1E
/* Control, Alarm A, acceleration peak threshold */
#define ADIS16220_ALM_MAGA 0x20
/* Control, Alarm 1, AIN1 peak threshold */
#define ADIS16220_ALM_MAG1 0x22
/* Control, Alarm 2, AIN2 peak threshold */
#define ADIS16220_ALM_MAG2 0x24
/* Control, Alarm S, peak threshold */
#define ADIS16220_ALM_MAGS 0x26
/* Control, alarm configuration register */
#define ADIS16220_ALM_CTRL 0x28
/* Control, general I/O configuration */
#define ADIS16220_GPIO_CTRL 0x32
/* Control, self-test control, AIN configuration */
#define ADIS16220_MSC_CTRL 0x34
/* Control, digital I/O configuration */
#define ADIS16220_DIO_CTRL 0x36
/* Control, filter configuration */
#define ADIS16220_AVG_CNT 0x38
/* Status, system status */
#define ADIS16220_DIAG_STAT 0x3C
/* Control, system commands */
#define ADIS16220_GLOB_CMD 0x3E
/* Status, self-test response */
#define ADIS16220_ST_DELTA 0x40
/* Lot Identification Code 1 */
#define ADIS16220_LOT_ID1 0x52
/* Lot Identification Code 2 */
#define ADIS16220_LOT_ID2 0x54
/* Product identifier; convert to decimal = 16220 */
#define ADIS16220_PROD_ID 0x56
/* Serial number */
#define ADIS16220_SERIAL_NUM 0x58
#define ADIS16220_CAPTURE_SIZE 2048
/* MSC_CTRL */
#define ADIS16220_MSC_CTRL_SELF_TEST_EN BIT(8)
#define ADIS16220_MSC_CTRL_POWER_SUP_COM_AIN1 BIT(1)
#define ADIS16220_MSC_CTRL_POWER_SUP_COM_AIN2 BIT(0)
/* DIO_CTRL */
#define ADIS16220_MSC_CTRL_DIO2_BUSY_IND (BIT(5) | BIT(4))
#define ADIS16220_MSC_CTRL_DIO1_BUSY_IND (BIT(3) | BIT(2))
#define ADIS16220_MSC_CTRL_DIO2_ACT_HIGH BIT(1)
#define ADIS16220_MSC_CTRL_DIO1_ACT_HIGH BIT(0)
/* DIAG_STAT */
/* AIN2 sample > ALM_MAG2 */
#define ADIS16220_DIAG_STAT_ALM_MAG2 BIT(14)
/* AIN1 sample > ALM_MAG1 */
#define ADIS16220_DIAG_STAT_ALM_MAG1 BIT(13)
/* Acceleration sample > ALM_MAGA */
#define ADIS16220_DIAG_STAT_ALM_MAGA BIT(12)
/* Error condition programmed into ALM_MAGS[11:0] and ALM_CTRL[5:4] is true */
#define ADIS16220_DIAG_STAT_ALM_MAGS BIT(11)
/* |Peak value in AIN2 data capture| > ALM_MAG2 */
#define ADIS16220_DIAG_STAT_PEAK_AIN2 BIT(10)
/* |Peak value in AIN1 data capture| > ALM_MAG1 */
#define ADIS16220_DIAG_STAT_PEAK_AIN1 BIT(9)
/* |Peak value in acceleration data capture| > ALM_MAGA */
#define ADIS16220_DIAG_STAT_PEAK_ACCEL BIT(8)
/* Data ready, capture complete */
#define ADIS16220_DIAG_STAT_DATA_RDY BIT(7)
#define ADIS16220_DIAG_STAT_FLASH_CHK BIT(6)
#define ADIS16220_DIAG_STAT_SELF_TEST BIT(5)
/* Capture period violation/interruption */
#define ADIS16220_DIAG_STAT_VIOLATION_BIT 4
/* SPI communications failure */
#define ADIS16220_DIAG_STAT_SPI_FAIL_BIT 3
/* Flash update failure */
#define ADIS16220_DIAG_STAT_FLASH_UPT_BIT 2
/* Power supply above 3.625 V */
#define ADIS16220_DIAG_STAT_POWER_HIGH_BIT 1
/* Power supply below 3.15 V */
#define ADIS16220_DIAG_STAT_POWER_LOW_BIT 0
/* GLOB_CMD */
#define ADIS16220_GLOB_CMD_SW_RESET BIT(7)
#define ADIS16220_GLOB_CMD_SELF_TEST BIT(2)
#define ADIS16220_GLOB_CMD_PWR_DOWN BIT(1)
#define ADIS16220_MAX_TX 2048
#define ADIS16220_MAX_RX 2048
#define ADIS16220_SPI_BURST (u32)(1000 * 1000)
#define ADIS16220_SPI_FAST (u32)(2000 * 1000)
/**
* struct adis16220_state - device instance specific data
* @adis: adis device
* @tx: transmit buffer
* @rx: receive buffer
* @buf_lock: mutex to protect tx and rx
**/
struct adis16220_state {
struct adis adis;
struct mutex buf_lock;
u8 tx[ADIS16220_MAX_TX] ____cacheline_aligned;
u8 rx[ADIS16220_MAX_RX];
};
#endif /* SPI_ADIS16220_H_ */

494
drivers/staging/iio/accel/adis16220_core.c
View File

@ -1,494 +0,0 @@
/*
* ADIS16220 Programmable Digital Vibration Sensor driver
*
* Copyright 2010 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#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/module.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
#include "adis16220.h"
static ssize_t adis16220_read_16bit(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct adis16220_state *st = iio_priv(indio_dev);
ssize_t ret;
u16 val;
/* Take the iio_dev status lock */
mutex_lock(&indio_dev->mlock);
ret = adis_read_reg_16(&st->adis, this_attr->address, &val);
mutex_unlock(&indio_dev->mlock);
if (ret)
return ret;
return sprintf(buf, "%u\n", val);
}
static ssize_t adis16220_write_16bit(struct device *dev,
struct device_attribute *attr,
const char *buf,
size_t len)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
struct adis16220_state *st = iio_priv(indio_dev);
int ret;
u16 val;
ret = kstrtou16(buf, 10, &val);
if (ret)
goto error_ret;
ret = adis_write_reg_16(&st->adis, this_attr->address, val);
error_ret:
return ret ? ret : len;
}
static int adis16220_capture(struct iio_dev *indio_dev)
{
struct adis16220_state *st = iio_priv(indio_dev);
int ret;
/* initiates a manual data capture */
ret = adis_write_reg_16(&st->adis, ADIS16220_GLOB_CMD, 0xBF08);
if (ret)
dev_err(&indio_dev->dev, "problem beginning capture");
usleep_range(10000, 11000); /* delay for capture to finish */
return ret;
}
static ssize_t adis16220_write_capture(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t len)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
bool val;
int ret;
ret = strtobool(buf, &val);
if (ret)
return ret;
if (!val)
return -EINVAL;
ret = adis16220_capture(indio_dev);
if (ret)
return ret;
return len;
}
static ssize_t adis16220_capture_buffer_read(struct iio_dev *indio_dev,
char *buf,
loff_t off,
size_t count,
int addr)
{
struct adis16220_state *st = iio_priv(indio_dev);
struct spi_transfer xfers[] = {
{
.tx_buf = st->tx,
.bits_per_word = 8,
.len = 2,
.cs_change = 1,
.delay_usecs = 25,
}, {
.tx_buf = st->tx,
.rx_buf = st->rx,
.bits_per_word = 8,
.cs_change = 1,
.delay_usecs = 25,
},
};
int ret;
int i;
if (unlikely(!count))
return count;
if ((off >= ADIS16220_CAPTURE_SIZE) || (count & 1) || (off & 1))
return -EINVAL;
if (off + count > ADIS16220_CAPTURE_SIZE)
count = ADIS16220_CAPTURE_SIZE - off;
/* write the begin position of capture buffer */
ret = adis_write_reg_16(&st->adis,
ADIS16220_CAPT_PNTR,
off > 1);
if (ret)
return -EIO;
/* read count/2 values from capture buffer */
mutex_lock(&st->buf_lock);
for (i = 0; i < count; i += 2) {
st->tx[i] = ADIS_READ_REG(addr);
st->tx[i + 1] = 0;
}
xfers[1].len = count;
ret = spi_sync_transfer(st->adis.spi, xfers, ARRAY_SIZE(xfers));
if (ret) {
mutex_unlock(&st->buf_lock);
return -EIO;
}
memcpy(buf, st->rx, count);
mutex_unlock(&st->buf_lock);
return count;
}
static ssize_t adis16220_accel_bin_read(struct file *filp, struct kobject *kobj,
struct bin_attribute *attr,
char *buf,
loff_t off,
size_t count)
{
struct iio_dev *indio_dev = dev_to_iio_dev(kobj_to_dev(kobj));
return adis16220_capture_buffer_read(indio_dev, buf,
off, count,
ADIS16220_CAPT_BUFA);
}
static struct bin_attribute accel_bin = {
.attr = {
.name = "accel_bin",
.mode = S_IRUGO,
},
.read = adis16220_accel_bin_read,
.size = ADIS16220_CAPTURE_SIZE,
};
static ssize_t adis16220_adc1_bin_read(struct file *filp, struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t off,
size_t count)
{
struct iio_dev *indio_dev = dev_to_iio_dev(kobj_to_dev(kobj));
return adis16220_capture_buffer_read(indio_dev, buf,
off, count,
ADIS16220_CAPT_BUF1);
}
static struct bin_attribute adc1_bin = {
.attr = {
.name = "in0_bin",
.mode = S_IRUGO,
},
.read = adis16220_adc1_bin_read,
.size = ADIS16220_CAPTURE_SIZE,
};
static ssize_t adis16220_adc2_bin_read(struct file *filp, struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t off,
size_t count)
{
struct iio_dev *indio_dev = dev_to_iio_dev(kobj_to_dev(kobj));
return adis16220_capture_buffer_read(indio_dev, buf,
off, count,
ADIS16220_CAPT_BUF2);
}
static struct bin_attribute adc2_bin = {
.attr = {
.name = "in1_bin",
.mode = S_IRUGO,
},
.read = adis16220_adc2_bin_read,
.size = ADIS16220_CAPTURE_SIZE,
};
#define IIO_DEV_ATTR_CAPTURE(_store) \
IIO_DEVICE_ATTR(capture, S_IWUSR, NULL, _store, 0)
static IIO_DEV_ATTR_CAPTURE(adis16220_write_capture);
#define IIO_DEV_ATTR_CAPTURE_COUNT(_mode, _show, _store, _addr) \
IIO_DEVICE_ATTR(capture_count, _mode, _show, _store, _addr)
static IIO_DEV_ATTR_CAPTURE_COUNT(S_IWUSR | S_IRUGO,
adis16220_read_16bit,
adis16220_write_16bit,
ADIS16220_CAPT_PNTR);
enum adis16220_channel {
in_supply, in_1, in_2, accel, temp
};
struct adis16220_address_spec {
u8 addr;
u8 bits;
bool sign;
};
/* Address / bits / signed */
static const struct adis16220_address_spec adis16220_addresses[][3] = {
[in_supply] = { { ADIS16220_CAPT_SUPPLY, 12, 0 }, },
[in_1] = { { ADIS16220_CAPT_BUF1, 16, 1 },
{ ADIS16220_AIN1_NULL, 16, 1 },
{ ADIS16220_CAPT_PEAK1, 16, 1 }, },
[in_2] = { { ADIS16220_CAPT_BUF2, 16, 1 },
{ ADIS16220_AIN2_NULL, 16, 1 },
{ ADIS16220_CAPT_PEAK2, 16, 1 }, },
[accel] = { { ADIS16220_CAPT_BUFA, 16, 1 },
{ ADIS16220_ACCL_NULL, 16, 1 },
{ ADIS16220_CAPT_PEAKA, 16, 1 }, },
[temp] = { { ADIS16220_CAPT_TEMP, 12, 0 }, }
};
static int adis16220_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
int *val, int *val2,
long mask)
{
struct adis16220_state *st = iio_priv(indio_dev);
const struct adis16220_address_spec *addr;
int ret = -EINVAL;
int addrind = 0;
u16 uval;
s16 sval;
u8 bits;
switch (mask) {
case IIO_CHAN_INFO_RAW:
addrind = 0;
break;
case IIO_CHAN_INFO_OFFSET:
if (chan->type == IIO_TEMP) {
*val = 25000 / -470 - 1278; /* 25 C = 1278 */
return IIO_VAL_INT;
}
addrind = 1;
break;
case IIO_CHAN_INFO_PEAK:
addrind = 2;
break;
case IIO_CHAN_INFO_SCALE:
switch (chan->type) {
case IIO_TEMP:
*val = -470; /* -0.47 C */
*val2 = 0;
return IIO_VAL_INT_PLUS_MICRO;
case IIO_ACCEL:
*val2 = IIO_G_TO_M_S_2(19073); /* 19.073 g */
return IIO_VAL_INT_PLUS_MICRO;
case IIO_VOLTAGE:
if (chan->channel == 0) {
*val = 1;
*val2 = 220700; /* 1.2207 mV */
} else {
/* Should really be dependent on VDD */
*val2 = 305180; /* 305.18 uV */
}
return IIO_VAL_INT_PLUS_MICRO;
default:
return -EINVAL;
}
default:
return -EINVAL;
}
addr = &adis16220_addresses[chan->address][addrind];
if (addr->sign) {
ret = adis_read_reg_16(&st->adis, addr->addr, &sval);
if (ret)
return ret;
bits = addr->bits;
sval &= (1 << bits) - 1;
sval = (s16)(sval << (16 - bits)) >> (16 - bits);
*val = sval;
return IIO_VAL_INT;
}
ret = adis_read_reg_16(&st->adis, addr->addr, &uval);
if (ret)
return ret;
bits = addr->bits;
uval &= (1 << bits) - 1;
*val = uval;
return IIO_VAL_INT;
}
static const struct iio_chan_spec adis16220_channels[] = {
{
.type = IIO_VOLTAGE,
.indexed = 1,
.channel = 0,
.extend_name = "supply",
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
BIT(IIO_CHAN_INFO_SCALE),
.address = in_supply,
}, {
.type = IIO_ACCEL,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
BIT(IIO_CHAN_INFO_OFFSET) |
BIT(IIO_CHAN_INFO_SCALE) |
BIT(IIO_CHAN_INFO_PEAK),
.address = accel,
}, {
.type = IIO_TEMP,
.indexed = 1,
.channel = 0,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
BIT(IIO_CHAN_INFO_OFFSET) |
BIT(IIO_CHAN_INFO_SCALE),
.address = temp,
}, {
.type = IIO_VOLTAGE,
.indexed = 1,
.channel = 1,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
BIT(IIO_CHAN_INFO_OFFSET) |
BIT(IIO_CHAN_INFO_SCALE),
.address = in_1,
}, {
.type = IIO_VOLTAGE,
.indexed = 1,
.channel = 2,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
.address = in_2,
}
};
static struct attribute *adis16220_attributes[] = {
&iio_dev_attr_capture.dev_attr.attr,
&iio_dev_attr_capture_count.dev_attr.attr,
NULL
};
static const struct attribute_group adis16220_attribute_group = {
.attrs = adis16220_attributes,
};
static const struct iio_info adis16220_info = {
.attrs = &adis16220_attribute_group,
.driver_module = THIS_MODULE,
.read_raw = &adis16220_read_raw,
};
static const char * const adis16220_status_error_msgs[] = {
[ADIS16220_DIAG_STAT_VIOLATION_BIT] = "Capture period violation/interruption",
[ADIS16220_DIAG_STAT_SPI_FAIL_BIT] = "SPI failure",
[ADIS16220_DIAG_STAT_FLASH_UPT_BIT] = "Flash update failed",
[ADIS16220_DIAG_STAT_POWER_HIGH_BIT] = "Power supply above 3.625V",
[ADIS16220_DIAG_STAT_POWER_LOW_BIT] = "Power supply below 3.15V",
};
static const struct adis_data adis16220_data = {
.read_delay = 35,
.write_delay = 35,
.msc_ctrl_reg = ADIS16220_MSC_CTRL,
.glob_cmd_reg = ADIS16220_GLOB_CMD,
.diag_stat_reg = ADIS16220_DIAG_STAT,
.self_test_mask = ADIS16220_MSC_CTRL_SELF_TEST_EN,
.startup_delay = ADIS16220_STARTUP_DELAY,
.status_error_msgs = adis16220_status_error_msgs,
.status_error_mask = BIT(ADIS16220_DIAG_STAT_VIOLATION_BIT) |
BIT(ADIS16220_DIAG_STAT_SPI_FAIL_BIT) |
BIT(ADIS16220_DIAG_STAT_FLASH_UPT_BIT) |
BIT(ADIS16220_DIAG_STAT_POWER_HIGH_BIT) |
BIT(ADIS16220_DIAG_STAT_POWER_LOW_BIT),
};
static int adis16220_probe(struct spi_device *spi)
{
int ret;
struct adis16220_state *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 = &adis16220_info;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->channels = adis16220_channels;
indio_dev->num_channels = ARRAY_SIZE(adis16220_channels);
ret = devm_iio_device_register(&spi->dev, indio_dev);
if (ret)
return ret;
ret = sysfs_create_bin_file(&indio_dev->dev.kobj, &accel_bin);
if (ret)
return ret;
ret = sysfs_create_bin_file(&indio_dev->dev.kobj, &adc1_bin);
if (ret)
goto error_rm_accel_bin;
ret = sysfs_create_bin_file(&indio_dev->dev.kobj, &adc2_bin);
if (ret)
goto error_rm_adc1_bin;
ret = adis_init(&st->adis, indio_dev, spi, &adis16220_data);
if (ret)
goto error_rm_adc2_bin;
/* Get the device into a sane initial state */
ret = adis_initial_startup(&st->adis);
if (ret)
goto error_rm_adc2_bin;
return 0;
error_rm_adc2_bin:
sysfs_remove_bin_file(&indio_dev->dev.kobj, &adc2_bin);
error_rm_adc1_bin:
sysfs_remove_bin_file(&indio_dev->dev.kobj, &adc1_bin);
error_rm_accel_bin:
sysfs_remove_bin_file(&indio_dev->dev.kobj, &accel_bin);
return ret;
}
static int adis16220_remove(struct spi_device *spi)
{
struct iio_dev *indio_dev = spi_get_drvdata(spi);
sysfs_remove_bin_file(&indio_dev->dev.kobj, &adc2_bin);
sysfs_remove_bin_file(&indio_dev->dev.kobj, &adc1_bin);
sysfs_remove_bin_file(&indio_dev->dev.kobj, &accel_bin);
return 0;
}
static struct spi_driver adis16220_driver = {
.driver = {
.name = "adis16220",
},
.probe = adis16220_probe,
.remove = adis16220_remove,
};
module_spi_driver(adis16220_driver);
MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
MODULE_DESCRIPTION("Analog Devices ADIS16220 Digital Vibration Sensor");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("spi:adis16220");