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Merge branch 'togreg' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

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This commit is contained in:
Greg Kroah-Hartman 2012-07-06 16:03:44 -07:00
commit c01ef023ec
19 changed files with 843 additions and 317 deletions
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10
drivers/iio/adc/Kconfig
View file

@ -3,6 +3,16 @@
#
menu "Analog to digital converters"
config AD7266
tristate "Analog Devices AD7265/AD7266 ADC driver"
depends on SPI_MASTER
select IIO_BUFFER
select IIO_TRIGGER
select IIO_TRIGGERED_BUFFER
help
Say yes here to build support for Analog Devices AD7265 and AD7266
ADCs.
config AT91_ADC
tristate "Atmel AT91 ADC"
depends on ARCH_AT91

1
drivers/iio/adc/Makefile
View file

@ -2,4 +2,5 @@
# Makefile for IIO ADC drivers
#
obj-$(CONFIG_AD7266) += ad7266.o
obj-$(CONFIG_AT91_ADC) += at91_adc.o

536
drivers/iio/adc/ad7266.c Normal file
View file

@ -0,0 +1,536 @@
/*
* AD7266/65 SPI ADC driver
*
* Copyright 2012 Analog Devices Inc.
*
* Licensed under the GPL-2.
*/
#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/spi/spi.h>
#include <linux/regulator/consumer.h>
#include <linux/err.h>
#include <linux/gpio.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/iio/iio.h>
#include <linux/iio/buffer.h>
#include <linux/iio/trigger_consumer.h>
#include <linux/iio/triggered_buffer.h>
#include <linux/platform_data/ad7266.h>
struct ad7266_state {
struct spi_device *spi;
struct regulator *reg;
unsigned long vref_uv;
struct spi_transfer single_xfer[3];
struct spi_message single_msg;
enum ad7266_range range;
enum ad7266_mode mode;
bool fixed_addr;
struct gpio gpios[3];
/*
* DMA (thus cache coherency maintenance) requires the
* transfer buffers to live in their own cache lines.
* The buffer needs to be large enough to hold two samples (4 bytes) and
* the naturally aligned timestamp (8 bytes).
*/
uint8_t data[ALIGN(4, sizeof(s64)) + sizeof(s64)] ____cacheline_aligned;
};
static int ad7266_wakeup(struct ad7266_state *st)
{
/* Any read with >= 2 bytes will wake the device */
return spi_read(st->spi, st->data, 2);
}
static int ad7266_powerdown(struct ad7266_state *st)
{
/* Any read with < 2 bytes will powerdown the device */
return spi_read(st->spi, st->data, 1);
}
static int ad7266_preenable(struct iio_dev *indio_dev)
{
struct ad7266_state *st = iio_priv(indio_dev);
int ret;
ret = ad7266_wakeup(st);
if (ret)
return ret;
ret = iio_sw_buffer_preenable(indio_dev);
if (ret)
ad7266_powerdown(st);
return ret;
}
static int ad7266_postdisable(struct iio_dev *indio_dev)
{
struct ad7266_state *st = iio_priv(indio_dev);
return ad7266_powerdown(st);
}
static const struct iio_buffer_setup_ops iio_triggered_buffer_setup_ops = {
.preenable = &ad7266_preenable,
.postenable = &iio_triggered_buffer_postenable,
.predisable = &iio_triggered_buffer_predisable,
.postdisable = &ad7266_postdisable,
};
static irqreturn_t ad7266_trigger_handler(int irq, void *p)
{
struct iio_poll_func *pf = p;
struct iio_dev *indio_dev = pf->indio_dev;
struct iio_buffer *buffer = indio_dev->buffer;
struct ad7266_state *st = iio_priv(indio_dev);
int ret;
ret = spi_read(st->spi, st->data, 4);
if (ret == 0) {
if (indio_dev->scan_timestamp)
((s64 *)st->data)[1] = pf->timestamp;
iio_push_to_buffer(buffer, (u8 *)st->data, pf->timestamp);
}
iio_trigger_notify_done(indio_dev->trig);
return IRQ_HANDLED;
}
static void ad7266_select_input(struct ad7266_state *st, unsigned int nr)
{
unsigned int i;
if (st->fixed_addr)
return;
switch (st->mode) {
case AD7266_MODE_SINGLE_ENDED:
nr >>= 1;
break;
case AD7266_MODE_PSEUDO_DIFF:
nr |= 1;
break;
case AD7266_MODE_DIFF:
nr &= ~1;
break;
}
for (i = 0; i < 3; ++i)
gpio_set_value(st->gpios[i].gpio, (bool)(nr & BIT(i)));
}
static int ad7266_update_scan_mode(struct iio_dev *indio_dev,
const unsigned long *scan_mask)
{
struct ad7266_state *st = iio_priv(indio_dev);
unsigned int nr = find_first_bit(scan_mask, indio_dev->masklength);
ad7266_select_input(st, nr);
return 0;
}
static int ad7266_read_single(struct ad7266_state *st, int *val,
unsigned int address)
{
int ret;
ad7266_select_input(st, address);
ret = spi_sync(st->spi, &st->single_msg);
*val = be16_to_cpu(st->data[address % 2]);
return ret;
}
static int ad7266_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan, int *val, int *val2, long m)
{
struct ad7266_state *st = iio_priv(indio_dev);
unsigned long scale_uv;
int ret;
switch (m) {
case IIO_CHAN_INFO_RAW:
if (iio_buffer_enabled(indio_dev))
return -EBUSY;
ret = ad7266_read_single(st, val, chan->address);
if (ret)
return ret;
*val = (*val >> 2) & 0xfff;
if (chan->scan_type.sign == 's')
*val = sign_extend32(*val, 11);
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
scale_uv = (st->vref_uv * 100);
if (st->mode == AD7266_MODE_DIFF)
scale_uv *= 2;
if (st->range == AD7266_RANGE_2VREF)
scale_uv *= 2;
scale_uv >>= chan->scan_type.realbits;
*val = scale_uv / 100000;
*val2 = (scale_uv % 100000) * 10;
return IIO_VAL_INT_PLUS_MICRO;
case IIO_CHAN_INFO_OFFSET:
if (st->range == AD7266_RANGE_2VREF &&
st->mode != AD7266_MODE_DIFF)
*val = 2048;
else
*val = 0;
return IIO_VAL_INT;
}
return -EINVAL;
}
#define AD7266_CHAN(_chan, _sign) { \
.type = IIO_VOLTAGE, \
.indexed = 1, \
.channel = (_chan), \
.address = (_chan), \
.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT \
| IIO_CHAN_INFO_SCALE_SHARED_BIT \
| IIO_CHAN_INFO_OFFSET_SHARED_BIT, \
.scan_index = (_chan), \
.scan_type = { \
.sign = (_sign), \
.realbits = 12, \
.storagebits = 16, \
.shift = 2, \
.endianness = IIO_BE, \
}, \
}
#define AD7266_DECLARE_SINGLE_ENDED_CHANNELS(_name, _sign) \
const struct iio_chan_spec ad7266_channels_##_name[] = { \
AD7266_CHAN(0, (_sign)), \
AD7266_CHAN(1, (_sign)), \
AD7266_CHAN(2, (_sign)), \
AD7266_CHAN(3, (_sign)), \
AD7266_CHAN(4, (_sign)), \
AD7266_CHAN(5, (_sign)), \
AD7266_CHAN(6, (_sign)), \
AD7266_CHAN(7, (_sign)), \
AD7266_CHAN(8, (_sign)), \
AD7266_CHAN(9, (_sign)), \
AD7266_CHAN(10, (_sign)), \
AD7266_CHAN(11, (_sign)), \
IIO_CHAN_SOFT_TIMESTAMP(13), \
}
#define AD7266_DECLARE_SINGLE_ENDED_CHANNELS_FIXED(_name, _sign) \
const struct iio_chan_spec ad7266_channels_##_name##_fixed[] = { \
AD7266_CHAN(0, (_sign)), \
AD7266_CHAN(1, (_sign)), \
IIO_CHAN_SOFT_TIMESTAMP(2), \
}
static AD7266_DECLARE_SINGLE_ENDED_CHANNELS(u, 'u');
static AD7266_DECLARE_SINGLE_ENDED_CHANNELS(s, 's');
static AD7266_DECLARE_SINGLE_ENDED_CHANNELS_FIXED(u, 'u');
static AD7266_DECLARE_SINGLE_ENDED_CHANNELS_FIXED(s, 's');
#define AD7266_CHAN_DIFF(_chan, _sign) { \
.type = IIO_VOLTAGE, \
.indexed = 1, \
.channel = (_chan) * 2, \
.channel2 = (_chan) * 2 + 1, \
.address = (_chan), \
.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT \
| IIO_CHAN_INFO_SCALE_SHARED_BIT \
| IIO_CHAN_INFO_OFFSET_SHARED_BIT, \
.scan_index = (_chan), \
.scan_type = { \
.sign = _sign, \
.realbits = 12, \
.storagebits = 16, \
.shift = 2, \
.endianness = IIO_BE, \
}, \
.differential = 1, \
}
#define AD7266_DECLARE_DIFF_CHANNELS(_name, _sign) \
const struct iio_chan_spec ad7266_channels_diff_##_name[] = { \
AD7266_CHAN_DIFF(0, (_sign)), \
AD7266_CHAN_DIFF(1, (_sign)), \
AD7266_CHAN_DIFF(2, (_sign)), \
AD7266_CHAN_DIFF(3, (_sign)), \
AD7266_CHAN_DIFF(4, (_sign)), \
AD7266_CHAN_DIFF(5, (_sign)), \
IIO_CHAN_SOFT_TIMESTAMP(6), \
}
static AD7266_DECLARE_DIFF_CHANNELS(s, 's');
static AD7266_DECLARE_DIFF_CHANNELS(u, 'u');
#define AD7266_DECLARE_DIFF_CHANNELS_FIXED(_name, _sign) \
const struct iio_chan_spec ad7266_channels_diff_fixed_##_name[] = { \
AD7266_CHAN_DIFF(0, (_sign)), \
AD7266_CHAN_DIFF(1, (_sign)), \
IIO_CHAN_SOFT_TIMESTAMP(2), \
}
static AD7266_DECLARE_DIFF_CHANNELS_FIXED(s, 's');
static AD7266_DECLARE_DIFF_CHANNELS_FIXED(u, 'u');
static const struct iio_info ad7266_info = {
.read_raw = &ad7266_read_raw,
.update_scan_mode = &ad7266_update_scan_mode,
.driver_module = THIS_MODULE,
};
static unsigned long ad7266_available_scan_masks[] = {
0x003,
0x00c,
0x030,
0x0c0,
0x300,
0xc00,
0x000,
};
static unsigned long ad7266_available_scan_masks_diff[] = {
0x003,
0x00c,
0x030,
0x000,
};
static unsigned long ad7266_available_scan_masks_fixed[] = {
0x003,
0x000,
};
struct ad7266_chan_info {
const struct iio_chan_spec *channels;
unsigned int num_channels;
unsigned long *scan_masks;
};
#define AD7266_CHAN_INFO_INDEX(_differential, _signed, _fixed) \
(((_differential) << 2) | ((_signed) << 1) | ((_fixed) << 0))
static const struct ad7266_chan_info ad7266_chan_infos[] = {
[AD7266_CHAN_INFO_INDEX(0, 0, 0)] = {
.channels = ad7266_channels_u,
.num_channels = ARRAY_SIZE(ad7266_channels_u),
.scan_masks = ad7266_available_scan_masks,
},
[AD7266_CHAN_INFO_INDEX(0, 0, 1)] = {
.channels = ad7266_channels_u_fixed,
.num_channels = ARRAY_SIZE(ad7266_channels_u_fixed),
.scan_masks = ad7266_available_scan_masks_fixed,
},
[AD7266_CHAN_INFO_INDEX(0, 1, 0)] = {
.channels = ad7266_channels_s,
.num_channels = ARRAY_SIZE(ad7266_channels_s),
.scan_masks = ad7266_available_scan_masks,
},
[AD7266_CHAN_INFO_INDEX(0, 1, 1)] = {
.channels = ad7266_channels_s_fixed,
.num_channels = ARRAY_SIZE(ad7266_channels_s_fixed),
.scan_masks = ad7266_available_scan_masks_fixed,
},
[AD7266_CHAN_INFO_INDEX(1, 0, 0)] = {
.channels = ad7266_channels_diff_u,
.num_channels = ARRAY_SIZE(ad7266_channels_diff_u),
.scan_masks = ad7266_available_scan_masks_diff,
},
[AD7266_CHAN_INFO_INDEX(1, 0, 1)] = {
.channels = ad7266_channels_diff_fixed_u,
.num_channels = ARRAY_SIZE(ad7266_channels_diff_fixed_u),
.scan_masks = ad7266_available_scan_masks_fixed,
},
[AD7266_CHAN_INFO_INDEX(1, 1, 0)] = {
.channels = ad7266_channels_diff_s,
.num_channels = ARRAY_SIZE(ad7266_channels_diff_s),
.scan_masks = ad7266_available_scan_masks_diff,
},
[AD7266_CHAN_INFO_INDEX(1, 1, 1)] = {
.channels = ad7266_channels_diff_fixed_s,
.num_channels = ARRAY_SIZE(ad7266_channels_diff_fixed_s),
.scan_masks = ad7266_available_scan_masks_fixed,
},
};
static void __devinit ad7266_init_channels(struct iio_dev *indio_dev)
{
struct ad7266_state *st = iio_priv(indio_dev);
bool is_differential, is_signed;
const struct ad7266_chan_info *chan_info;
int i;
is_differential = st->mode != AD7266_MODE_SINGLE_ENDED;
is_signed = (st->range == AD7266_RANGE_2VREF) |
(st->mode == AD7266_MODE_DIFF);
i = AD7266_CHAN_INFO_INDEX(is_differential, is_signed, st->fixed_addr);
chan_info = &ad7266_chan_infos[i];
indio_dev->channels = chan_info->channels;
indio_dev->num_channels = chan_info->num_channels;
indio_dev->available_scan_masks = chan_info->scan_masks;
indio_dev->masklength = chan_info->num_channels - 1;
}
static const char * const ad7266_gpio_labels[] = {
"AD0", "AD1", "AD2",
};
static int __devinit ad7266_probe(struct spi_device *spi)
{
struct ad7266_platform_data *pdata = spi->dev.platform_data;
struct iio_dev *indio_dev;
struct ad7266_state *st;
unsigned int i;
int ret;
indio_dev = iio_device_alloc(sizeof(*st));
if (indio_dev == NULL)
return -ENOMEM;
st = iio_priv(indio_dev);
st->reg = regulator_get(&spi->dev, "vref");
if (!IS_ERR_OR_NULL(st->reg)) {
ret = regulator_enable(st->reg);
if (ret)
goto error_put_reg;
st->vref_uv = regulator_get_voltage(st->reg);
} else {
/* Use internal reference */
st->vref_uv = 2500000;
}
if (pdata) {
st->fixed_addr = pdata->fixed_addr;
st->mode = pdata->mode;
st->range = pdata->range;
if (!st->fixed_addr) {
for (i = 0; i < ARRAY_SIZE(st->gpios); ++i) {
st->gpios[i].gpio = pdata->addr_gpios[i];
st->gpios[i].flags = GPIOF_OUT_INIT_LOW;
st->gpios[i].label = ad7266_gpio_labels[i];
}
ret = gpio_request_array(st->gpios,
ARRAY_SIZE(st->gpios));
if (ret)
goto error_disable_reg;
}
} else {
st->fixed_addr = true;
st->range = AD7266_RANGE_VREF;
st->mode = AD7266_MODE_DIFF;
}
spi_set_drvdata(spi, indio_dev);
st->spi = spi;
indio_dev->dev.parent = &spi->dev;
indio_dev->name = spi_get_device_id(spi)->name;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->info = &ad7266_info;
ad7266_init_channels(indio_dev);
/* wakeup */
st->single_xfer[0].rx_buf = &st->data;
st->single_xfer[0].len = 2;
st->single_xfer[0].cs_change = 1;
/* conversion */
st->single_xfer[1].rx_buf = &st->data;
st->single_xfer[1].len = 4;
st->single_xfer[1].cs_change = 1;
/* powerdown */
st->single_xfer[2].tx_buf = &st->data;
st->single_xfer[2].len = 1;
spi_message_init(&st->single_msg);
spi_message_add_tail(&st->single_xfer[0], &st->single_msg);
spi_message_add_tail(&st->single_xfer[1], &st->single_msg);
spi_message_add_tail(&st->single_xfer[2], &st->single_msg);
ret = iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
&ad7266_trigger_handler, &iio_triggered_buffer_setup_ops);
if (ret)
goto error_free_gpios;
ret = iio_device_register(indio_dev);
if (ret)
goto error_buffer_cleanup;
return 0;
error_buffer_cleanup:
iio_triggered_buffer_cleanup(indio_dev);
error_free_gpios:
if (!st->fixed_addr)
gpio_free_array(st->gpios, ARRAY_SIZE(st->gpios));
error_disable_reg:
if (!IS_ERR_OR_NULL(st->reg))
regulator_disable(st->reg);
error_put_reg:
if (!IS_ERR_OR_NULL(st->reg))
regulator_put(st->reg);
iio_device_free(indio_dev);
return ret;
}
static int __devexit ad7266_remove(struct spi_device *spi)
{
struct iio_dev *indio_dev = spi_get_drvdata(spi);
struct ad7266_state *st = iio_priv(indio_dev);
iio_device_unregister(indio_dev);
iio_triggered_buffer_cleanup(indio_dev);
if (!st->fixed_addr)
gpio_free_array(st->gpios, ARRAY_SIZE(st->gpios));
if (!IS_ERR_OR_NULL(st->reg)) {
regulator_disable(st->reg);
regulator_put(st->reg);
}
iio_device_free(indio_dev);
return 0;
}
static const struct spi_device_id ad7266_id[] = {
{"ad7265", 0},
{"ad7266", 0},
{ }
};
MODULE_DEVICE_TABLE(spi, ad7266_id);
static struct spi_driver ad7266_driver = {
.driver = {
.name = "ad7266",
.owner = THIS_MODULE,
},
.probe = ad7266_probe,
.remove = __devexit_p(ad7266_remove),
.id_table = ad7266_id,
};
module_spi_driver(ad7266_driver);
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
MODULE_DESCRIPTION("Analog Devices AD7266/65 ADC");
MODULE_LICENSE("GPL v2");

8
drivers/iio/dac/Kconfig
View file

@ -4,12 +4,12 @@
menu "Digital to analog converters"
config AD5064
tristate "Analog Devices AD5064/64-1/65/44/45/24/25, AD5628/48/66/68 DAC driver"
depends on SPI
tristate "Analog Devices AD5064 and similar multi-channel DAC driver"
depends on (SPI_MASTER || I2C)
help
Say yes here to build support for Analog Devices AD5024, AD5025, AD5044,
AD5045, AD5064, AD5064-1, AD5065, AD5628, AD5648, AD5666, AD5668 Digital
to Analog Converter.
AD5045, AD5064, AD5064-1, AD5065, AD5628, AD5629R, AD5648, AD5666, AD5668,
AD5669R Digital to Analog Converter.
To compile this driver as a module, choose M here: the
module will be called ad5064.

200
drivers/iio/dac/ad5064.c
View file

@ -1,6 +1,6 @@
/*
* AD5024, AD5025, AD5044, AD5045, AD5064, AD5064-1, AD5065, AD5628, AD5648,
* AD5666, AD5668 Digital to analog converters driver
* AD5024, AD5025, AD5044, AD5045, AD5064, AD5064-1, AD5065, AD5628, AD5629R,
* AD5648, AD5666, AD5668, AD5669R Digital to analog converters driver
*
* Copyright 2011 Analog Devices Inc.
*
@ -12,9 +12,11 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/spi/spi.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/sysfs.h>
#include <linux/regulator/consumer.h>
#include <asm/unaligned.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
@ -62,9 +64,14 @@ struct ad5064_chip_info {
unsigned int num_channels;
};
struct ad5064_state;
typedef int (*ad5064_write_func)(struct ad5064_state *st, unsigned int cmd,
unsigned int addr, unsigned int val);
/**
* struct ad5064_state - driver instance specific data
* @spi: spi_device
* @dev: the device for this driver instance
* @chip_info: chip model specific constants, available modes etc
* @vref_reg: vref supply regulators
* @pwr_down: whether channel is powered down
@ -72,11 +79,12 @@ struct ad5064_chip_info {
* @dac_cache: current DAC raw value (chip does not support readback)
* @use_internal_vref: set to true if the internal reference voltage should be
* used.
* @data: spi transfer buffers
* @write: register write callback
* @data: i2c/spi transfer buffers
*/
struct ad5064_state {
struct spi_device *spi;
struct device *dev;
const struct ad5064_chip_info *chip_info;
struct regulator_bulk_data vref_reg[AD5064_MAX_VREFS];
bool pwr_down[AD5064_MAX_DAC_CHANNELS];
@ -84,11 +92,16 @@ struct ad5064_state {
unsigned int dac_cache[AD5064_MAX_DAC_CHANNELS];
bool use_internal_vref;
ad5064_write_func write;
/*
* DMA (thus cache coherency maintenance) requires the
* transfer buffers to live in their own cache lines.
*/
__be32 data ____cacheline_aligned;
union {
u8 i2c[3];
__be32 spi;
} data ____cacheline_aligned;
};
enum ad5064_type {
@ -109,14 +122,31 @@ enum ad5064_type {
ID_AD5668_2,
};
static int ad5064_i2c_write(struct ad5064_state *st, unsigned int cmd,
unsigned int addr, unsigned int val)
{
struct i2c_client *i2c = to_i2c_client(st->dev);
st->data.i2c[0] = (cmd << 4) | addr;
put_unaligned_be16(val, &st->data.i2c[1]);
return i2c_master_send(i2c, st->data.i2c, 3);
}
static int ad5064_spi_write(struct ad5064_state *st, unsigned int cmd,
unsigned int addr, unsigned int val)
{
struct spi_device *spi = to_spi_device(st->dev);
st->data.spi = cpu_to_be32(AD5064_CMD(cmd) | AD5064_ADDR(addr) | val);
return spi_write(spi, &st->data.spi, sizeof(st->data.spi));
}
static int ad5064_write(struct ad5064_state *st, unsigned int cmd,
unsigned int addr, unsigned int val, unsigned int shift)
{
val <<= shift;
st->data = cpu_to_be32(AD5064_CMD(cmd) | AD5064_ADDR(addr) | val);
return spi_write(st->spi, &st->data, sizeof(st->data));
return st->write(st, cmd, addr, val);
}
static int ad5064_sync_powerdown_mode(struct ad5064_state *st,
@ -130,7 +160,7 @@ static int ad5064_sync_powerdown_mode(struct ad5064_state *st,
if (st->pwr_down[channel])
val |= st->pwr_down_mode[channel] << 8;
ret = ad5064_spi_write(st, AD5064_CMD_POWERDOWN_DAC, 0, val, 0);
ret = ad5064_write(st, AD5064_CMD_POWERDOWN_DAC, 0, val, 0);
return ret;
}
@ -251,7 +281,7 @@ static int ad5064_write_raw(struct iio_dev *indio_dev,
return -EINVAL;
mutex_lock(&indio_dev->mlock);
ret = ad5064_spi_write(st, AD5064_CMD_WRITE_INPUT_N_UPDATE_N,
ret = ad5064_write(st, AD5064_CMD_WRITE_INPUT_N_UPDATE_N,
chan->address, val, chan->scan_type.shift);
if (ret == 0)
st->dac_cache[chan->channel] = val;
@ -413,9 +443,9 @@ static const char * const ad5064_vref_name(struct ad5064_state *st,
return st->chip_info->shared_vref ? "vref" : ad5064_vref_names[vref];
}
static int __devinit ad5064_probe(struct spi_device *spi)
static int __devinit ad5064_probe(struct device *dev, enum ad5064_type type,
const char *name, ad5064_write_func write)
{
enum ad5064_type type = spi_get_device_id(spi)->driver_data;
struct iio_dev *indio_dev;
struct ad5064_state *st;
unsigned int i;
@ -426,24 +456,25 @@ static int __devinit ad5064_probe(struct spi_device *spi)
return -ENOMEM;
st = iio_priv(indio_dev);
spi_set_drvdata(spi, indio_dev);
dev_set_drvdata(dev, indio_dev);
st->chip_info = &ad5064_chip_info_tbl[type];
st->spi = spi;
st->dev = dev;
st->write = write;
for (i = 0; i < ad5064_num_vref(st); ++i)
st->vref_reg[i].supply = ad5064_vref_name(st, i);
ret = regulator_bulk_get(&st->spi->dev, ad5064_num_vref(st),
ret = regulator_bulk_get(dev, ad5064_num_vref(st),
st->vref_reg);
if (ret) {
if (!st->chip_info->internal_vref)
goto error_free;
st->use_internal_vref = true;
ret = ad5064_spi_write(st, AD5064_CMD_CONFIG, 0,
ret = ad5064_write(st, AD5064_CMD_CONFIG, 0,
AD5064_CONFIG_INT_VREF_ENABLE, 0);
if (ret) {
dev_err(&spi->dev, "Failed to enable internal vref: %d\n",
dev_err(dev, "Failed to enable internal vref: %d\n",
ret);
goto error_free;
}
@ -458,8 +489,8 @@ static int __devinit ad5064_probe(struct spi_device *spi)
st->dac_cache[i] = 0x8000;
}
indio_dev->dev.parent = &spi->dev;
indio_dev->name = spi_get_device_id(spi)->name;
indio_dev->dev.parent = dev;
indio_dev->name = name;
indio_dev->info = &ad5064_info;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->channels = st->chip_info->channels;
@ -483,10 +514,9 @@ static int __devinit ad5064_probe(struct spi_device *spi)
return ret;
}
static int __devexit ad5064_remove(struct spi_device *spi)
static int __devexit ad5064_remove(struct device *dev)
{
struct iio_dev *indio_dev = spi_get_drvdata(spi);
struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct ad5064_state *st = iio_priv(indio_dev);
iio_device_unregister(indio_dev);
@ -501,7 +531,22 @@ static int __devexit ad5064_remove(struct spi_device *spi)
return 0;
}
static const struct spi_device_id ad5064_id[] = {
#if IS_ENABLED(CONFIG_SPI_MASTER)
static int __devinit ad5064_spi_probe(struct spi_device *spi)
{
const struct spi_device_id *id = spi_get_device_id(spi);
return ad5064_probe(&spi->dev, id->driver_data, id->name,
ad5064_spi_write);
}
static int __devexit ad5064_spi_remove(struct spi_device *spi)
{
return ad5064_remove(&spi->dev);
}
static const struct spi_device_id ad5064_spi_ids[] = {
{"ad5024", ID_AD5024},
{"ad5025", ID_AD5025},
{"ad5044", ID_AD5044},
@ -520,19 +565,112 @@ static const struct spi_device_id ad5064_id[] = {
{"ad5668-3", ID_AD5668_2}, /* similar enough to ad5668-2 */
{}
};
MODULE_DEVICE_TABLE(spi, ad5064_id);
MODULE_DEVICE_TABLE(spi, ad5064_spi_ids);
static struct spi_driver ad5064_driver = {
static struct spi_driver ad5064_spi_driver = {
.driver = {
.name = "ad5064",
.owner = THIS_MODULE,
},
.probe = ad5064_probe,
.remove = __devexit_p(ad5064_remove),
.id_table = ad5064_id,
.probe = ad5064_spi_probe,
.remove = __devexit_p(ad5064_spi_remove),
.id_table = ad5064_spi_ids,
};
module_spi_driver(ad5064_driver);
static int __init ad5064_spi_register_driver(void)
{
return spi_register_driver(&ad5064_spi_driver);
}
static void __exit ad5064_spi_unregister_driver(void)
{
spi_unregister_driver(&ad5064_spi_driver);
}
#else
static inline int ad5064_spi_register_driver(void) { return 0; }
static inline void ad5064_spi_unregister_driver(void) { }
#endif
#if IS_ENABLED(CONFIG_I2C)
static int __devinit ad5064_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
return ad5064_probe(&i2c->dev, id->driver_data, id->name,
ad5064_i2c_write);
}
static int __devexit ad5064_i2c_remove(struct i2c_client *i2c)
{
return ad5064_remove(&i2c->dev);
}
static const struct i2c_device_id ad5064_i2c_ids[] = {
{"ad5629-1", ID_AD5628_1},
{"ad5629-2", ID_AD5628_2},
{"ad5629-3", ID_AD5628_2}, /* similar enough to ad5629-2 */
{"ad5669-1", ID_AD5668_1},
{"ad5669-2", ID_AD5668_2},
{"ad5669-3", ID_AD5668_2}, /* similar enough to ad5669-2 */
{}
};
MODULE_DEVICE_TABLE(i2c, ad5064_i2c_ids);
static struct i2c_driver ad5064_i2c_driver = {
.driver = {
.name = "ad5064",
.owner = THIS_MODULE,
},
.probe = ad5064_i2c_probe,
.remove = __devexit_p(ad5064_i2c_remove),
.id_table = ad5064_i2c_ids,
};
static int __init ad5064_i2c_register_driver(void)
{
return i2c_add_driver(&ad5064_i2c_driver);
}
static void __exit ad5064_i2c_unregister_driver(void)
{
i2c_del_driver(&ad5064_i2c_driver);
}
#else
static inline int ad5064_i2c_register_driver(void) { return 0; }
static inline void ad5064_i2c_unregister_driver(void) { }
#endif
static int __init ad5064_init(void)
{
int ret;
ret = ad5064_spi_register_driver();
if (ret)
return ret;
ret = ad5064_i2c_register_driver();
if (ret) {
ad5064_spi_unregister_driver();
return ret;
}
return 0;
}
module_init(ad5064_init);
static void __exit ad5064_exit(void)
{
ad5064_i2c_unregister_driver();
ad5064_spi_unregister_driver();
}
module_exit(ad5064_exit);
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
MODULE_DESCRIPTION("Analog Devices AD5024/25/44/45/64/64-1/65, AD5628/48/66/68 DAC");
MODULE_DESCRIPTION("Analog Devices AD5024 and similar multi-channel DACs");
MODULE_LICENSE("GPL v2");

2
drivers/iio/industrialio-core.c
View file

@ -70,6 +70,8 @@ static const char * const iio_modifier_names[] = {
[IIO_MOD_X] = "x",
[IIO_MOD_Y] = "y",
[IIO_MOD_Z] = "z",
[IIO_MOD_ROOT_SUM_SQUARED_X_Y] = "sqrt(x^2+y^2)",
[IIO_MOD_SUM_SQUARED_X_Y_Z] = "x^2+y^2+z^2",
[IIO_MOD_LIGHT_BOTH] = "both",
[IIO_MOD_LIGHT_IR] = "ir",
};

33
drivers/iio/inkern.c
View file

@ -92,8 +92,7 @@ int iio_map_array_unregister(struct iio_dev *indio_dev,
EXPORT_SYMBOL_GPL(iio_map_array_unregister);
static const struct iio_chan_spec
*iio_chan_spec_from_name(const struct iio_dev *indio_dev,
const char *name)
*iio_chan_spec_from_name(const struct iio_dev *indio_dev, const char *name)
{
int i;
const struct iio_chan_spec *chan = NULL;
@ -108,8 +107,7 @@ static const struct iio_chan_spec
}
struct iio_channel *iio_st_channel_get(const char *name,
const char *channel_name)
struct iio_channel *iio_channel_get(const char *name, const char *channel_name)
{
struct iio_map_internal *c_i = NULL, *c = NULL;
struct iio_channel *channel;
@ -145,16 +143,16 @@ struct iio_channel *iio_st_channel_get(const char *name,
return channel;
}
EXPORT_SYMBOL_GPL(iio_st_channel_get);
EXPORT_SYMBOL_GPL(iio_channel_get);
void iio_st_channel_release(struct iio_channel *channel)
void iio_channel_release(struct iio_channel *channel)
{
iio_device_put(channel->indio_dev);
kfree(channel);
}
EXPORT_SYMBOL_GPL(iio_st_channel_release);
EXPORT_SYMBOL_GPL(iio_channel_release);
struct iio_channel *iio_st_channel_get_all(const char *name)
struct iio_channel *iio_channel_get_all(const char *name)
{
struct iio_channel *chans;
struct iio_map_internal *c = NULL;
@ -217,9 +215,9 @@ struct iio_channel *iio_st_channel_get_all(const char *name)
return ERR_PTR(ret);
}
EXPORT_SYMBOL_GPL(iio_st_channel_get_all);
EXPORT_SYMBOL_GPL(iio_channel_get_all);
void iio_st_channel_release_all(struct iio_channel *channels)
void iio_channel_release_all(struct iio_channel *channels)
{
struct iio_channel *chan = &channels[0];
@ -229,9 +227,9 @@ void iio_st_channel_release_all(struct iio_channel *channels)
}
kfree(channels);
}
EXPORT_SYMBOL_GPL(iio_st_channel_release_all);
EXPORT_SYMBOL_GPL(iio_channel_release_all);
int iio_st_read_channel_raw(struct iio_channel *chan, int *val)
int iio_read_channel_raw(struct iio_channel *chan, int *val)
{
int val2, ret;
@ -248,9 +246,9 @@ int iio_st_read_channel_raw(struct iio_channel *chan, int *val)
return ret;
}
EXPORT_SYMBOL_GPL(iio_st_read_channel_raw);
EXPORT_SYMBOL_GPL(iio_read_channel_raw);
int iio_st_read_channel_scale(struct iio_channel *chan, int *val, int *val2)
int iio_read_channel_scale(struct iio_channel *chan, int *val, int *val2)
{
int ret;
@ -269,10 +267,9 @@ int iio_st_read_channel_scale(struct iio_channel *chan, int *val, int *val2)
return ret;
}
EXPORT_SYMBOL_GPL(iio_st_read_channel_scale);
EXPORT_SYMBOL_GPL(iio_read_channel_scale);
int iio_st_get_channel_type(struct iio_channel *chan,
enum iio_chan_type *type)
int iio_get_channel_type(struct iio_channel *chan, enum iio_chan_type *type)
{
int ret = 0;
/* Need to verify underlying driver has not gone away */
@ -289,4 +286,4 @@ int iio_st_get_channel_type(struct iio_channel *chan,
return ret;
}
EXPORT_SYMBOL_GPL(iio_st_get_channel_type);
EXPORT_SYMBOL_GPL(iio_get_channel_type);

27
drivers/staging/iio/accel/adis16201_core.c
View file

@ -159,21 +159,6 @@ static int adis16201_reset(struct iio_dev *indio_dev)
return ret;
}
static ssize_t adis16201_write_reset(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t len)
{
int ret;
bool res;
if (len < 1)
return -EINVAL;
ret = strtobool(buf, &res);
if (ret || !res)
return ret;
return adis16201_reset(dev_to_iio_dev(dev));
}
int adis16201_set_irq(struct iio_dev *indio_dev, bool enable)
{
int ret = 0;
@ -507,19 +492,7 @@ static struct iio_chan_spec adis16201_channels[] = {
IIO_CHAN_SOFT_TIMESTAMP(7)
};
static IIO_DEVICE_ATTR(reset, S_IWUSR, NULL, adis16201_write_reset, 0);
static struct attribute *adis16201_attributes[] = {
&iio_dev_attr_reset.dev_attr.attr,
NULL
};
static const struct attribute_group adis16201_attribute_group = {
.attrs = adis16201_attributes,
};
static const struct iio_info adis16201_info = {
.attrs = &adis16201_attribute_group,
.read_raw = &adis16201_read_raw,
.write_raw = &adis16201_write_raw,
.driver_module = THIS_MODULE,

28
drivers/staging/iio/accel/adis16203_core.c
View file

@ -178,22 +178,6 @@ static int adis16203_reset(struct iio_dev *indio_dev)
return ret;
}
static ssize_t adis16203_write_reset(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t len)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
if (len < 1)
return -EINVAL;
switch (buf[0]) {
case '1':
case 'y':
case 'Y':
return adis16203_reset(indio_dev);
}
return -EINVAL;
}
int adis16203_set_irq(struct iio_dev *indio_dev, bool enable)
{
int ret = 0;
@ -444,19 +428,7 @@ static struct iio_chan_spec adis16203_channels[] = {
IIO_CHAN_SOFT_TIMESTAMP(5),
};
static IIO_DEVICE_ATTR(reset, S_IWUSR, NULL, adis16203_write_reset, 0);
static struct attribute *adis16203_attributes[] = {
&iio_dev_attr_reset.dev_attr.attr,
NULL
};
static const struct attribute_group adis16203_attribute_group = {
.attrs = adis16203_attributes,
};
static const struct iio_info adis16203_info = {
.attrs = &adis16203_attribute_group,
.read_raw = &adis16203_read_raw,
.write_raw = &adis16203_write_raw,
.driver_module = THIS_MODULE,

99
drivers/staging/iio/accel/adis16204_core.c
View file

@ -169,32 +169,6 @@ static int adis16204_check_status(struct iio_dev *indio_dev)
return ret;
}
static ssize_t adis16204_read_14bit_signed(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
s16 val = 0;
ssize_t ret;
mutex_lock(&indio_dev->mlock);
ret = adis16204_spi_read_reg_16(indio_dev,
this_attr->address, (u16 *)&val);
if (!ret) {
if (val & ADIS16204_ERROR_ACTIVE)
adis16204_check_status(indio_dev);
val = ((s16)(val << 2) >> 2);
ret = sprintf(buf, "%d\n", val);
}
mutex_unlock(&indio_dev->mlock);
return ret;
}
static int adis16204_reset(struct iio_dev *indio_dev)
{
int ret;
@ -207,23 +181,6 @@ static int adis16204_reset(struct iio_dev *indio_dev)
return ret;
}
static ssize_t adis16204_write_reset(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t len)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
if (len < 1)
return -EINVAL;
switch (buf[0]) {
case '1':
case 'y':
case 'Y':
return adis16204_reset(indio_dev);
}
return -EINVAL;
}
int adis16204_set_irq(struct iio_dev *indio_dev, bool enable)
{
int ret = 0;
@ -299,18 +256,6 @@ static int adis16204_initial_setup(struct iio_dev *indio_dev)
}
/* Unique to this driver currently */
#define IIO_DEV_ATTR_ACCEL_XY(_show, _addr) \
IIO_DEVICE_ATTR(in_accel_xy, S_IRUGO, _show, NULL, _addr)
#define IIO_DEV_ATTR_ACCEL_XYPEAK(_show, _addr) \
IIO_DEVICE_ATTR(in_accel_xypeak, S_IRUGO, _show, NULL, _addr)
static IIO_DEV_ATTR_ACCEL_XY(adis16204_read_14bit_signed,
ADIS16204_XY_RSS_OUT);
static IIO_DEV_ATTR_ACCEL_XYPEAK(adis16204_read_14bit_signed,
ADIS16204_XY_PEAK_OUT);
static IIO_CONST_ATTR(in_accel_xy_scale, "0.017125");
static IIO_DEVICE_ATTR(reset, S_IWUSR, NULL, adis16204_write_reset, 0);
enum adis16204_channel {
in_supply,
@ -318,9 +263,10 @@ enum adis16204_channel {
temp,
accel_x,
accel_y,
accel_xy,
};
static u8 adis16204_addresses[5][3] = {
static u8 adis16204_addresses[6][3] = {
[in_supply] = { ADIS16204_SUPPLY_OUT },
[in_aux] = { ADIS16204_AUX_ADC },
[temp] = { ADIS16204_TEMP_OUT },
@ -328,6 +274,8 @@ static u8 adis16204_addresses[5][3] = {
ADIS16204_X_PEAK_OUT },
[accel_y] = { ADIS16204_XACCL_OUT, ADIS16204_YACCL_NULL,
ADIS16204_Y_PEAK_OUT },
[accel_xy] = { ADIS16204_XY_RSS_OUT, 0,
ADIS16204_XY_PEAK_OUT },
};
static int adis16204_read_raw(struct iio_dev *indio_dev,
@ -381,10 +329,16 @@ static int adis16204_read_raw(struct iio_dev *indio_dev,
return IIO_VAL_INT_PLUS_MICRO;
case IIO_ACCEL:
*val = 0;
if (chan->channel2 == IIO_MOD_X)
switch (chan->channel2) {
case IIO_MOD_X:
case IIO_MOD_ROOT_SUM_SQUARED_X_Y:
*val2 = 17125;
else
break;
case IIO_MOD_Y:
case IIO_MOD_Z:
*val2 = 8407;
break;
}
return IIO_VAL_INT_PLUS_MICRO;
default:
return -EINVAL;
@ -517,22 +471,23 @@ static struct iio_chan_spec adis16204_channels[] = {
},
},
IIO_CHAN_SOFT_TIMESTAMP(5),
};
static struct attribute *adis16204_attributes[] = {
&iio_dev_attr_reset.dev_attr.attr,
&iio_dev_attr_in_accel_xy.dev_attr.attr,
&iio_dev_attr_in_accel_xypeak.dev_attr.attr,
&iio_const_attr_in_accel_xy_scale.dev_attr.attr,
NULL
};
static const struct attribute_group adis16204_attribute_group = {
.attrs = adis16204_attributes,
{
.type = IIO_ACCEL,
.modified = 1,
.channel2 = IIO_MOD_ROOT_SUM_SQUARED_X_Y,
.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
IIO_CHAN_INFO_SCALE_SEPARATE_BIT |
IIO_CHAN_INFO_PEAK_SEPARATE_BIT,
.address = accel_xy,
.scan_type = {
.sign = 'u',
.realbits = 14,
.storagebits = 16,
},
}
};
static const struct iio_info adis16204_info = {
.attrs = &adis16204_attribute_group,
.read_raw = &adis16204_read_raw,
.write_raw = &adis16204_write_raw,
.driver_module = THIS_MODULE,
@ -569,7 +524,7 @@ static int __devinit adis16204_probe(struct spi_device *spi)
ret = iio_buffer_register(indio_dev,
adis16204_channels,
ARRAY_SIZE(adis16204_channels));
6);
if (ret) {
printk(KERN_ERR "failed to initialize the ring\n");
goto error_unreg_ring_funcs;

29
drivers/staging/iio/accel/adis16209_core.c
View file

@ -153,23 +153,6 @@ static int adis16209_reset(struct iio_dev *indio_dev)
return ret;
}
static ssize_t adis16209_write_reset(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t len)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
if (len < 1)
return -EINVAL;
switch (buf[0]) {
case '1':
case 'y':
case 'Y':
return adis16209_reset(indio_dev);
}
return -EINVAL;
}
int adis16209_set_irq(struct iio_dev *indio_dev, bool enable)
{
int ret = 0;
@ -519,19 +502,7 @@ static struct iio_chan_spec adis16209_channels[] = {
IIO_CHAN_SOFT_TIMESTAMP(8)
};
static IIO_DEVICE_ATTR(reset, S_IWUSR, NULL, adis16209_write_reset, 0);
static struct attribute *adis16209_attributes[] = {
&iio_dev_attr_reset.dev_attr.attr,
NULL
};
static const struct attribute_group adis16209_attribute_group = {
.attrs = adis16209_attributes,
};
static const struct iio_info adis16209_info = {
.attrs = &adis16209_attribute_group,
.read_raw = &adis16209_read_raw,
.write_raw = &adis16209_write_raw,
.driver_module = THIS_MODULE,

24
drivers/staging/iio/accel/adis16220_core.c
View file

@ -204,26 +204,6 @@ static int adis16220_reset(struct iio_dev *indio_dev)
return ret;
}
static ssize_t adis16220_write_reset(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_reset(indio_dev);
if (ret)
return ret;
return len;
}
static ssize_t adis16220_write_capture(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t len)
@ -454,9 +434,6 @@ static struct bin_attribute adc2_bin = {
.size = ADIS16220_CAPTURE_SIZE,
};
static IIO_DEVICE_ATTR(reset, S_IWUSR, NULL,
adis16220_write_reset, 0);
#define IIO_DEV_ATTR_CAPTURE(_store) \
IIO_DEVICE_ATTR(capture, S_IWUSR, NULL, _store, 0)
@ -611,7 +588,6 @@ static const struct iio_chan_spec adis16220_channels[] = {
};
static struct attribute *adis16220_attributes[] = {
&iio_dev_attr_reset.dev_attr.attr,
&iio_dev_attr_capture.dev_attr.attr,
&iio_dev_attr_capture_count.dev_attr.attr,
NULL

20
drivers/staging/iio/accel/adis16240_core.c
View file

@ -199,23 +199,6 @@ static int adis16240_reset(struct iio_dev *indio_dev)
return ret;
}
static ssize_t adis16240_write_reset(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t len)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
if (len < 1)
return -EINVAL;
switch (buf[0]) {
case '1':
case 'y':
case 'Y':
return adis16240_reset(indio_dev);
}
return -EINVAL;
}
int adis16240_set_irq(struct iio_dev *indio_dev, bool enable)
{
int ret = 0;
@ -329,8 +312,6 @@ static IIO_DEVICE_ATTR(in_accel_xyz_squared_peak_raw, S_IRUGO,
adis16240_read_12bit_signed, NULL,
ADIS16240_XYZPEAK_OUT);
static IIO_DEVICE_ATTR(reset, S_IWUSR, NULL, adis16240_write_reset, 0);
static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("4096");
enum adis16240_chan {
@ -559,7 +540,6 @@ static struct iio_chan_spec adis16240_channels[] = {
static struct attribute *adis16240_attributes[] = {
&iio_dev_attr_in_accel_xyz_squared_peak_raw.dev_attr.attr,
&iio_const_attr_sampling_frequency_available.dev_attr.attr,
&iio_dev_attr_reset.dev_attr.attr,
NULL
};

19
drivers/staging/iio/gyro/adis16260_core.c
View file

@ -233,22 +233,6 @@ static int adis16260_reset(struct iio_dev *indio_dev)
return ret;
}
static ssize_t adis16260_write_reset(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t len)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
if (len < 1)
return -EINVAL;
switch (buf[0]) {
case '1':
case 'y':
case 'Y':
return adis16260_reset(indio_dev);
}
return -EINVAL;
}
int adis16260_set_irq(struct iio_dev *indio_dev, bool enable)
{
int ret;
@ -375,8 +359,6 @@ static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO,
adis16260_read_frequency,
adis16260_write_frequency);
static IIO_DEVICE_ATTR(reset, S_IWUSR, NULL, adis16260_write_reset, 0);
static IIO_DEVICE_ATTR(sampling_frequency_available,
S_IRUGO, adis16260_read_frequency_available, NULL, 0);
@ -604,7 +586,6 @@ static int adis16260_write_raw(struct iio_dev *indio_dev,
static struct attribute *adis16260_attributes[] = {
&iio_dev_attr_sampling_frequency.dev_attr.attr,
&iio_dev_attr_sampling_frequency_available.dev_attr.attr,
&iio_dev_attr_reset.dev_attr.attr,
NULL
};

12
drivers/staging/iio/iio_hwmon.c
View file

@ -51,12 +51,12 @@ static ssize_t iio_hwmon_read_val(struct device *dev,
* No locking between this pair, so theoretically possible
* the scale has changed.
*/
ret = iio_st_read_channel_raw(&state->channels[sattr->index],
ret = iio_read_channel_raw(&state->channels[sattr->index],
&val);
if (ret < 0)
return ret;
ret = iio_st_read_channel_scale(&state->channels[sattr->index],
ret = iio_read_channel_scale(&state->channels[sattr->index],
&scaleint, &scalepart);
if (ret < 0)
return ret;
@ -106,7 +106,7 @@ static int __devinit iio_hwmon_probe(struct platform_device *pdev)
goto error_ret;
}
st->channels = iio_st_channel_get_all(dev_name(&pdev->dev));
st->channels = iio_channel_get_all(dev_name(&pdev->dev));
if (IS_ERR(st->channels)) {
ret = PTR_ERR(st->channels);
goto error_free_state;
@ -130,7 +130,7 @@ static int __devinit iio_hwmon_probe(struct platform_device *pdev)
}
sysfs_attr_init(&a->dev_attr.attr);
ret = iio_st_get_channel_type(&st->channels[i], &type);
ret = iio_get_channel_type(&st->channels[i], &type);
if (ret < 0) {
kfree(a);
goto error_free_attrs;
@ -186,7 +186,7 @@ static int __devinit iio_hwmon_probe(struct platform_device *pdev)
iio_hwmon_free_attrs(st);
kfree(st->attrs);
error_release_channels:
iio_st_channel_release_all(st->channels);
iio_channel_release_all(st->channels);
error_free_state:
kfree(st);
error_ret:
@ -201,7 +201,7 @@ static int __devexit iio_hwmon_remove(struct platform_device *pdev)
sysfs_remove_group(&pdev->dev.kobj, &st->attr_group);
iio_hwmon_free_attrs(st);
kfree(st->attrs);
iio_st_channel_release_all(st->channels);
iio_channel_release_all(st->channels);
return 0;
}

22
drivers/staging/iio/imu/adis16400_core.c
View file

@ -268,25 +268,6 @@ static int adis16400_reset(struct iio_dev *indio_dev)
return ret;
}
static ssize_t adis16400_write_reset(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t len)
{
bool val;
int ret;
ret = strtobool(buf, &val);
if (ret < 0)
return ret;
if (val) {
ret = adis16400_reset(dev_to_iio_dev(dev));
if (ret < 0)
return ret;
}
return len;
}
int adis16400_set_irq(struct iio_dev *indio_dev, bool enable)
{
int ret;
@ -454,8 +435,6 @@ static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO,
adis16400_read_frequency,
adis16400_write_frequency);
static IIO_DEVICE_ATTR(reset, S_IWUSR, NULL, adis16400_write_reset, 0);
static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("409 546 819 1638");
enum adis16400_chan {
@ -1066,7 +1045,6 @@ static const struct iio_chan_spec adis16334_channels[] = {
static struct attribute *adis16400_attributes[] = {
&iio_dev_attr_sampling_frequency.dev_attr.attr,
&iio_const_attr_sampling_frequency_available.dev_attr.attr,
&iio_dev_attr_reset.dev_attr.attr,
NULL
};

34
include/linux/iio/consumer.h
View file

@ -33,17 +33,17 @@ struct iio_channel {
* side. This typically describes the channels use within
* the consumer. E.g. 'battery_voltage'
*/
struct iio_channel *iio_st_channel_get(const char *name,
const char *consumer_channel);
struct iio_channel *iio_channel_get(const char *name,
const char *consumer_channel);
/**
* iio_st_channel_release() - release channels obtained via iio_st_channel_get
* iio_channel_release() - release channels obtained via iio_channel_get
* @chan: The channel to be released.
*/
void iio_st_channel_release(struct iio_channel *chan);
void iio_channel_release(struct iio_channel *chan);
/**
* iio_st_channel_get_all() - get all channels associated with a client
* iio_channel_get_all() - get all channels associated with a client
* @name: name of consumer device.
*
* Returns an array of iio_channel structures terminated with one with
@ -51,37 +51,37 @@ void iio_st_channel_release(struct iio_channel *chan);
* This function is used by fairly generic consumers to get all the
* channels registered as having this consumer.
*/
struct iio_channel *iio_st_channel_get_all(const char *name);
struct iio_channel *iio_channel_get_all(const char *name);
/**
* iio_st_channel_release_all() - reverse iio_st_get_all
* iio_channel_release_all() - reverse iio_channel_get_all
* @chan: Array of channels to be released.
*/
void iio_st_channel_release_all(struct iio_channel *chan);
void iio_channel_release_all(struct iio_channel *chan);
/**
* iio_st_read_channel_raw() - read from a given channel
* iio_read_channel_raw() - read from a given channel
* @channel: The channel being queried.
* @val: Value read back.
*
* Note raw reads from iio channels are in adc counts and hence
* scale will need to be applied if standard units required.
*/
int iio_st_read_channel_raw(struct iio_channel *chan,
int *val);
int iio_read_channel_raw(struct iio_channel *chan,
int *val);
/**
* iio_st_get_channel_type() - get the type of a channel
* iio_get_channel_type() - get the type of a channel
* @channel: The channel being queried.
* @type: The type of the channel.
*
* returns the enum iio_chan_type of the channel
*/
int iio_st_get_channel_type(struct iio_channel *channel,
enum iio_chan_type *type);
int iio_get_channel_type(struct iio_channel *channel,
enum iio_chan_type *type);
/**
* iio_st_read_channel_scale() - read the scale value for a channel
* iio_read_channel_scale() - read the scale value for a channel
* @channel: The channel being queried.
* @val: First part of value read back.
* @val2: Second part of value read back.
@ -90,7 +90,7 @@ int iio_st_get_channel_type(struct iio_channel *channel,
* as IIO_VAL_INT_PLUS_MICRO telling us we have a value of val
* + val2/1e6
*/
int iio_st_read_channel_scale(struct iio_channel *chan, int *val,
int *val2);
int iio_read_channel_scale(struct iio_channel *chan, int *val,
int *val2);
#endif

2
include/linux/iio/types.h
View file

@ -44,6 +44,8 @@ enum iio_modifier {
IIO_MOD_X_OR_Y_OR_Z,
IIO_MOD_LIGHT_BOTH,
IIO_MOD_LIGHT_IR,
IIO_MOD_ROOT_SUM_SQUARED_X_Y,
IIO_MOD_SUM_SQUARED_X_Y_Z,
};
#define IIO_VAL_INT 1

54
include/linux/platform_data/ad7266.h Normal file
View file

@ -0,0 +1,54 @@
/*
* AD7266/65 SPI ADC driver
*
* Copyright 2012 Analog Devices Inc.
*
* Licensed under the GPL-2.
*/
#ifndef __IIO_ADC_AD7266_H__
#define __IIO_ADC_AD7266_H__
/**
* enum ad7266_range - AD7266 reference voltage range
* @AD7266_RANGE_VREF: Device is configured for input range 0V - VREF
* (RANGE pin set to low)
* @AD7266_RANGE_2VREF: Device is configured for input range 0V - 2VREF
* (RANGE pin set to high)
*/
enum ad7266_range {
AD7266_RANGE_VREF,
AD7266_RANGE_2VREF,
};
/**
* enum ad7266_mode - AD7266 sample mode
* @AD7266_MODE_DIFF: Device is configured for full differential mode
* (SGL/DIFF pin set to low, AD0 pin set to low)
* @AD7266_MODE_PSEUDO_DIFF: Device is configured for pseudo differential mode
* (SGL/DIFF pin set to low, AD0 pin set to high)
* @AD7266_MODE_SINGLE_ENDED: Device is configured for single-ended mode
* (SGL/DIFF pin set to high)
*/
enum ad7266_mode {
AD7266_MODE_DIFF,
AD7266_MODE_PSEUDO_DIFF,
AD7266_MODE_SINGLE_ENDED,
};
/**
* struct ad7266_platform_data - Platform data for the AD7266 driver
* @range: Reference voltage range the device is configured for
* @mode: Sample mode the device is configured for
* @fixed_addr: Whether the address pins are hard-wired
* @addr_gpios: GPIOs used for controlling the address pins, only used if
* fixed_addr is set to false.
*/
struct ad7266_platform_data {
enum ad7266_range range;
enum ad7266_mode mode;
bool fixed_addr;
unsigned int addr_gpios[3];
};
#endif