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-rw-r--r--drivers/staging/iio/dac/Kconfig38
-rw-r--r--drivers/staging/iio/dac/Makefile3
-rw-r--r--drivers/staging/iio/dac/ad5446.c126
-rw-r--r--drivers/staging/iio/dac/ad5446.h2
-rw-r--r--drivers/staging/iio/dac/ad5504.c141
-rw-r--r--drivers/staging/iio/dac/ad5504.h2
-rw-r--r--drivers/staging/iio/dac/ad5624r.h1
-rw-r--r--drivers/staging/iio/dac/ad5624r_spi.c95
-rw-r--r--drivers/staging/iio/dac/ad5791.c246
-rw-r--r--drivers/staging/iio/dac/ad5791.h8
-rw-r--r--drivers/staging/iio/dac/dac.h2
-rw-r--r--drivers/staging/iio/dac/max517.c70
12 files changed, 360 insertions, 374 deletions
diff --git a/drivers/staging/iio/dac/Kconfig b/drivers/staging/iio/dac/Kconfig
index d5a5556..fac8549 100644
--- a/drivers/staging/iio/dac/Kconfig
+++ b/drivers/staging/iio/dac/Kconfig
@@ -1,14 +1,35 @@
#
# DAC drivers
#
-comment "Digital to analog convertors"
+menu "Digital to analog converters"
+
+config AD5064
+ tristate "Analog Devices AD5064/64-1/44/24 DAC driver"
+ depends on SPI
+ help
+ Say yes here to build support for Analog Devices AD5064, AD5064-1,
+ AD5044, AD5024 Digital to Analog Converter.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ad5064.
+
+config AD5360
+ tristate "Analog Devices Analog Devices AD5360/61/62/63/70/71/73 DAC driver"
+ depends on SPI
+ help
+ Say yes here to build support for Analog Devices AD5360, AD5361,
+ AD5362, AD5363, AD5370, AD5371, AD5373 multi-channel
+ Digital to Analog Converters (DAC).
+
+ To compile this driver as module choose M here: the module will be called
+ ad5360.
config AD5624R_SPI
tristate "Analog Devices AD5624/44/64R DAC spi driver"
depends on SPI
help
Say yes here to build support for Analog Devices AD5624R, AD5644R and
- AD5664R convertors (DAC). This driver uses the common SPI interface.
+ AD5664R converters (DAC). This driver uses the common SPI interface.
config AD5446
tristate "Analog Devices AD5444/6, AD5620/40/60 and AD5542A/12A DAC SPI driver"
@@ -42,6 +63,17 @@ config AD5791
To compile this driver as a module, choose M here: the
module will be called ad5791.
+config AD5686
+ tristate "Analog Devices AD5686R/AD5685R/AD5684R DAC SPI driver"
+ depends on SPI
+ help
+ Say yes here to build support for Analog Devices AD5686R, AD5685R,
+ AD5684R, AD5791 Voltage Output Digital to
+ Analog Converter.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ad5686.
+
config MAX517
tristate "Maxim MAX517/518/519 DAC driver"
depends on I2C && EXPERIMENTAL
@@ -51,3 +83,5 @@ config MAX517
This driver can also be built as a module. If so, the module
will be called max517.
+
+endmenu
diff --git a/drivers/staging/iio/dac/Makefile b/drivers/staging/iio/dac/Makefile
index 83196de..07b6f5e 100644
--- a/drivers/staging/iio/dac/Makefile
+++ b/drivers/staging/iio/dac/Makefile
@@ -2,8 +2,11 @@
# Makefile for industrial I/O DAC drivers
#
+obj-$(CONFIG_AD5360) += ad5360.o
obj-$(CONFIG_AD5624R_SPI) += ad5624r_spi.o
+obj-$(CONFIG_AD5064) += ad5064.o
obj-$(CONFIG_AD5504) += ad5504.o
obj-$(CONFIG_AD5446) += ad5446.o
obj-$(CONFIG_AD5791) += ad5791.o
+obj-$(CONFIG_AD5686) += ad5686.o
obj-$(CONFIG_MAX517) += max517.o
diff --git a/drivers/staging/iio/dac/ad5446.c b/drivers/staging/iio/dac/ad5446.c
index 86cb08c..e1c204d 100644
--- a/drivers/staging/iio/dac/ad5446.c
+++ b/drivers/staging/iio/dac/ad5446.c
@@ -16,6 +16,7 @@
#include <linux/spi/spi.h>
#include <linux/regulator/consumer.h>
#include <linux/err.h>
+#include <linux/module.h>
#include "../iio.h"
#include "../sysfs.h"
@@ -67,8 +68,8 @@ static ssize_t ad5446_write(struct device *dev,
const char *buf,
size_t len)
{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct ad5446_state *st = dev_info->dev_data;
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
+ struct ad5446_state *st = iio_priv(indio_dev);
int ret;
long val;
@@ -81,11 +82,11 @@ static ssize_t ad5446_write(struct device *dev,
goto error_ret;
}
- mutex_lock(&dev_info->mlock);
+ mutex_lock(&indio_dev->mlock);
st->cached_val = val;
st->chip_info->store_sample(st, val);
ret = spi_sync(st->spi, &st->msg);
- mutex_unlock(&dev_info->mlock);
+ mutex_unlock(&indio_dev->mlock);
error_ret:
return ret ? ret : len;
@@ -97,21 +98,21 @@ static ssize_t ad5446_show_scale(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct ad5446_state *st = iio_dev_get_devdata(dev_info);
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
+ struct ad5446_state *st = iio_priv(indio_dev);
/* Corresponds to Vref / 2^(bits) */
unsigned int scale_uv = (st->vref_mv * 1000) >> st->chip_info->bits;
return sprintf(buf, "%d.%03d\n", scale_uv / 1000, scale_uv % 1000);
}
-static IIO_DEVICE_ATTR(out_scale, S_IRUGO, ad5446_show_scale, NULL, 0);
+static IIO_DEVICE_ATTR(out_voltage_scale, S_IRUGO, ad5446_show_scale, NULL, 0);
static ssize_t ad5446_write_powerdown_mode(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t len)
{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct ad5446_state *st = dev_info->dev_data;
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
+ struct ad5446_state *st = iio_priv(indio_dev);
if (sysfs_streq(buf, "1kohm_to_gnd"))
st->pwr_down_mode = MODE_PWRDWN_1k;
@@ -128,8 +129,8 @@ static ssize_t ad5446_write_powerdown_mode(struct device *dev,
static ssize_t ad5446_read_powerdown_mode(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct ad5446_state *st = dev_info->dev_data;
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
+ struct ad5446_state *st = iio_priv(indio_dev);
char mode[][15] = {"", "1kohm_to_gnd", "100kohm_to_gnd", "three_state"};
@@ -140,8 +141,8 @@ static ssize_t ad5446_read_dac_powerdown(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct ad5446_state *st = dev_info->dev_data;
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
+ struct ad5446_state *st = iio_priv(indio_dev);
return sprintf(buf, "%d\n", st->pwr_down);
}
@@ -150,8 +151,8 @@ static ssize_t ad5446_write_dac_powerdown(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t len)
{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct ad5446_state *st = dev_info->dev_data;
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
+ struct ad5446_state *st = iio_priv(indio_dev);
unsigned long readin;
int ret;
@@ -162,7 +163,7 @@ static ssize_t ad5446_write_dac_powerdown(struct device *dev,
if (readin > 1)
ret = -EINVAL;
- mutex_lock(&dev_info->mlock);
+ mutex_lock(&indio_dev->mlock);
st->pwr_down = readin;
if (st->pwr_down)
@@ -171,28 +172,28 @@ static ssize_t ad5446_write_dac_powerdown(struct device *dev,
st->chip_info->store_sample(st, st->cached_val);
ret = spi_sync(st->spi, &st->msg);
- mutex_unlock(&dev_info->mlock);
+ mutex_unlock(&indio_dev->mlock);
return ret ? ret : len;
}
-static IIO_DEVICE_ATTR(out_powerdown_mode, S_IRUGO | S_IWUSR,
+static IIO_DEVICE_ATTR(out_voltage_powerdown_mode, S_IRUGO | S_IWUSR,
ad5446_read_powerdown_mode,
ad5446_write_powerdown_mode, 0);
-static IIO_CONST_ATTR(out_powerdown_mode_available,
+static IIO_CONST_ATTR(out_voltage_powerdown_mode_available,
"1kohm_to_gnd 100kohm_to_gnd three_state");
-static IIO_DEVICE_ATTR(out0_powerdown, S_IRUGO | S_IWUSR,
+static IIO_DEVICE_ATTR(out_voltage0_powerdown, S_IRUGO | S_IWUSR,
ad5446_read_dac_powerdown,
ad5446_write_dac_powerdown, 0);
static struct attribute *ad5446_attributes[] = {
- &iio_dev_attr_out0_raw.dev_attr.attr,
- &iio_dev_attr_out_scale.dev_attr.attr,
- &iio_dev_attr_out0_powerdown.dev_attr.attr,
- &iio_dev_attr_out_powerdown_mode.dev_attr.attr,
- &iio_const_attr_out_powerdown_mode_available.dev_attr.attr,
+ &iio_dev_attr_out_voltage0_raw.dev_attr.attr,
+ &iio_dev_attr_out_voltage_scale.dev_attr.attr,
+ &iio_dev_attr_out_voltage0_powerdown.dev_attr.attr,
+ &iio_dev_attr_out_voltage_powerdown_mode.dev_attr.attr,
+ &iio_const_attr_out_voltage_powerdown_mode_available.dev_attr.attr,
NULL,
};
@@ -200,16 +201,18 @@ static mode_t ad5446_attr_is_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
struct device *dev = container_of(kobj, struct device, kobj);
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct ad5446_state *st = iio_dev_get_devdata(dev_info);
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
+ struct ad5446_state *st = iio_priv(indio_dev);
mode_t mode = attr->mode;
if (!st->chip_info->store_pwr_down &&
- (attr == &iio_dev_attr_out0_powerdown.dev_attr.attr ||
- attr == &iio_dev_attr_out_powerdown_mode.dev_attr.attr ||
+ (attr == &iio_dev_attr_out_voltage0_powerdown.dev_attr.attr ||
+ attr == &iio_dev_attr_out_voltage_powerdown_mode.
+ dev_attr.attr ||
attr ==
- &iio_const_attr_out_powerdown_mode_available.dev_attr.attr))
+ &iio_const_attr_out_voltage_powerdown_mode_available.
+ dev_attr.attr))
mode = 0;
return mode;
@@ -342,42 +345,37 @@ static const struct iio_info ad5446_info = {
static int __devinit ad5446_probe(struct spi_device *spi)
{
struct ad5446_state *st;
+ struct iio_dev *indio_dev;
+ struct regulator *reg;
int ret, voltage_uv = 0;
- st = kzalloc(sizeof(*st), GFP_KERNEL);
- if (st == NULL) {
- ret = -ENOMEM;
- goto error_ret;
- }
-
- st->reg = regulator_get(&spi->dev, "vcc");
- if (!IS_ERR(st->reg)) {
- ret = regulator_enable(st->reg);
+ reg = regulator_get(&spi->dev, "vcc");
+ if (!IS_ERR(reg)) {
+ ret = regulator_enable(reg);
if (ret)
goto error_put_reg;
- voltage_uv = regulator_get_voltage(st->reg);
+ voltage_uv = regulator_get_voltage(reg);
}
+ indio_dev = iio_allocate_device(sizeof(*st));
+ if (indio_dev == NULL) {
+ ret = -ENOMEM;
+ goto error_disable_reg;
+ }
+ st = iio_priv(indio_dev);
st->chip_info =
&ad5446_chip_info_tbl[spi_get_device_id(spi)->driver_data];
- spi_set_drvdata(spi, st);
-
+ spi_set_drvdata(spi, indio_dev);
+ st->reg = reg;
st->spi = spi;
- st->indio_dev = iio_allocate_device(0);
- if (st->indio_dev == NULL) {
- ret = -ENOMEM;
- goto error_disable_reg;
- }
-
/* Estabilish that the iio_dev is a child of the spi device */
- st->indio_dev->dev.parent = &spi->dev;
- st->indio_dev->name = spi_get_device_id(spi)->name;
- st->indio_dev->info = &ad5446_info;
- st->indio_dev->dev_data = (void *)(st);
- st->indio_dev->modes = INDIO_DIRECT_MODE;
+ indio_dev->dev.parent = &spi->dev;
+ indio_dev->name = spi_get_device_id(spi)->name;
+ indio_dev->info = &ad5446_info;
+ indio_dev->modes = INDIO_DIRECT_MODE;
/* Setup default message */
@@ -404,36 +402,36 @@ static int __devinit ad5446_probe(struct spi_device *spi)
"reference voltage unspecified\n");
}
- ret = iio_device_register(st->indio_dev);
+ ret = iio_device_register(indio_dev);
if (ret)
goto error_free_device;
return 0;
error_free_device:
- iio_free_device(st->indio_dev);
+ iio_free_device(indio_dev);
error_disable_reg:
- if (!IS_ERR(st->reg))
- regulator_disable(st->reg);
+ if (!IS_ERR(reg))
+ regulator_disable(reg);
error_put_reg:
- if (!IS_ERR(st->reg))
- regulator_put(st->reg);
- kfree(st);
-error_ret:
+ if (!IS_ERR(reg))
+ regulator_put(reg);
+
return ret;
}
static int ad5446_remove(struct spi_device *spi)
{
- struct ad5446_state *st = spi_get_drvdata(spi);
- struct iio_dev *indio_dev = st->indio_dev;
+ struct iio_dev *indio_dev = spi_get_drvdata(spi);
+ struct ad5446_state *st = iio_priv(indio_dev);
iio_device_unregister(indio_dev);
if (!IS_ERR(st->reg)) {
regulator_disable(st->reg);
regulator_put(st->reg);
}
- kfree(st);
+ iio_free_device(indio_dev);
+
return 0;
}
diff --git a/drivers/staging/iio/dac/ad5446.h b/drivers/staging/iio/dac/ad5446.h
index e6ffd2b..7118d65 100644
--- a/drivers/staging/iio/dac/ad5446.h
+++ b/drivers/staging/iio/dac/ad5446.h
@@ -33,7 +33,6 @@
/**
* struct ad5446_state - driver instance specific data
- * @indio_dev: the industrial I/O device
* @spi: spi_device
* @chip_info: chip model specific constants, available modes etc
* @reg: supply regulator
@@ -45,7 +44,6 @@
*/
struct ad5446_state {
- struct iio_dev *indio_dev;
struct spi_device *spi;
const struct ad5446_chip_info *chip_info;
struct regulator *reg;
diff --git a/drivers/staging/iio/dac/ad5504.c b/drivers/staging/iio/dac/ad5504.c
index ed029cd..60dd640 100644
--- a/drivers/staging/iio/dac/ad5504.c
+++ b/drivers/staging/iio/dac/ad5504.c
@@ -7,7 +7,6 @@
*/
#include <linux/interrupt.h>
-#include <linux/gpio.h>
#include <linux/fs.h>
#include <linux/device.h>
#include <linux/kernel.h>
@@ -15,6 +14,7 @@
#include <linux/slab.h>
#include <linux/sysfs.h>
#include <linux/regulator/consumer.h>
+#include <linux/module.h>
#include "../iio.h"
#include "../sysfs.h"
@@ -55,7 +55,7 @@ static ssize_t ad5504_write_dac(struct device *dev,
const char *buf, size_t len)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5504_state *st = iio_dev_get_devdata(indio_dev);
+ struct ad5504_state *st = iio_priv(indio_dev);
struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
long readin;
int ret;
@@ -73,7 +73,7 @@ static ssize_t ad5504_read_dac(struct device *dev,
char *buf)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5504_state *st = iio_dev_get_devdata(indio_dev);
+ struct ad5504_state *st = iio_priv(indio_dev);
struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
int ret;
u16 val;
@@ -89,7 +89,7 @@ static ssize_t ad5504_read_powerdown_mode(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5504_state *st = iio_dev_get_devdata(indio_dev);
+ struct ad5504_state *st = iio_priv(indio_dev);
const char mode[][14] = {"20kohm_to_gnd", "three_state"};
@@ -101,7 +101,7 @@ static ssize_t ad5504_write_powerdown_mode(struct device *dev,
const char *buf, size_t len)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5504_state *st = iio_dev_get_devdata(indio_dev);
+ struct ad5504_state *st = iio_priv(indio_dev);
int ret;
if (sysfs_streq(buf, "20kohm_to_gnd"))
@@ -119,7 +119,7 @@ static ssize_t ad5504_read_dac_powerdown(struct device *dev,
char *buf)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5504_state *st = iio_dev_get_devdata(indio_dev);
+ struct ad5504_state *st = iio_priv(indio_dev);
struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
return sprintf(buf, "%d\n",
@@ -133,7 +133,7 @@ static ssize_t ad5504_write_dac_powerdown(struct device *dev,
long readin;
int ret;
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5504_state *st = iio_dev_get_devdata(indio_dev);
+ struct ad5504_state *st = iio_priv(indio_dev);
struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
ret = strict_strtol(buf, 10, &readin);
@@ -162,16 +162,16 @@ static ssize_t ad5504_show_scale(struct device *dev,
char *buf)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5504_state *st = iio_dev_get_devdata(indio_dev);
+ struct ad5504_state *st = iio_priv(indio_dev);
/* Corresponds to Vref / 2^(bits) */
unsigned int scale_uv = (st->vref_mv * 1000) >> AD5505_BITS;
return sprintf(buf, "%d.%03d\n", scale_uv / 1000, scale_uv % 1000);
}
-static IIO_DEVICE_ATTR(out_scale, S_IRUGO, ad5504_show_scale, NULL, 0);
+static IIO_DEVICE_ATTR(out_voltage_scale, S_IRUGO, ad5504_show_scale, NULL, 0);
#define IIO_DEV_ATTR_OUT_RW_RAW(_num, _show, _store, _addr) \
- IIO_DEVICE_ATTR(out##_num##_raw, \
+ IIO_DEVICE_ATTR(out_voltage##_num##_raw, \
S_IRUGO | S_IWUSR, _show, _store, _addr)
static IIO_DEV_ATTR_OUT_RW_RAW(0, ad5504_read_dac,
@@ -183,17 +183,16 @@ static IIO_DEV_ATTR_OUT_RW_RAW(2, ad5504_read_dac,
static IIO_DEV_ATTR_OUT_RW_RAW(3, ad5504_read_dac,
ad5504_write_dac, AD5504_ADDR_DAC3);
-static IIO_DEVICE_ATTR(out_powerdown_mode, S_IRUGO |
+static IIO_DEVICE_ATTR(out_voltage_powerdown_mode, S_IRUGO |
S_IWUSR, ad5504_read_powerdown_mode,
ad5504_write_powerdown_mode, 0);
-static IIO_CONST_ATTR(out_powerdown_mode_available,
+static IIO_CONST_ATTR(out_voltage_powerdown_mode_available,
"20kohm_to_gnd three_state");
#define IIO_DEV_ATTR_DAC_POWERDOWN(_num, _show, _store, _addr) \
- IIO_DEVICE_ATTR(out##_num##_powerdown, \
+ IIO_DEVICE_ATTR(out_voltage##_num##_powerdown, \
S_IRUGO | S_IWUSR, _show, _store, _addr)
-
static IIO_DEV_ATTR_DAC_POWERDOWN(0, ad5504_read_dac_powerdown,
ad5504_write_dac_powerdown, 0);
static IIO_DEV_ATTR_DAC_POWERDOWN(1, ad5504_read_dac_powerdown,
@@ -204,17 +203,17 @@ static IIO_DEV_ATTR_DAC_POWERDOWN(3, ad5504_read_dac_powerdown,
ad5504_write_dac_powerdown, 3);
static struct attribute *ad5504_attributes[] = {
- &iio_dev_attr_out0_raw.dev_attr.attr,
- &iio_dev_attr_out1_raw.dev_attr.attr,
- &iio_dev_attr_out2_raw.dev_attr.attr,
- &iio_dev_attr_out3_raw.dev_attr.attr,
- &iio_dev_attr_out0_powerdown.dev_attr.attr,
- &iio_dev_attr_out1_powerdown.dev_attr.attr,
- &iio_dev_attr_out2_powerdown.dev_attr.attr,
- &iio_dev_attr_out3_powerdown.dev_attr.attr,
- &iio_dev_attr_out_powerdown_mode.dev_attr.attr,
- &iio_const_attr_out_powerdown_mode_available.dev_attr.attr,
- &iio_dev_attr_out_scale.dev_attr.attr,
+ &iio_dev_attr_out_voltage0_raw.dev_attr.attr,
+ &iio_dev_attr_out_voltage1_raw.dev_attr.attr,
+ &iio_dev_attr_out_voltage2_raw.dev_attr.attr,
+ &iio_dev_attr_out_voltage3_raw.dev_attr.attr,
+ &iio_dev_attr_out_voltage0_powerdown.dev_attr.attr,
+ &iio_dev_attr_out_voltage1_powerdown.dev_attr.attr,
+ &iio_dev_attr_out_voltage2_powerdown.dev_attr.attr,
+ &iio_dev_attr_out_voltage3_powerdown.dev_attr.attr,
+ &iio_dev_attr_out_voltage_powerdown_mode.dev_attr.attr,
+ &iio_const_attr_out_voltage_powerdown_mode_available.dev_attr.attr,
+ &iio_dev_attr_out_voltage_scale.dev_attr.attr,
NULL,
};
@@ -223,11 +222,11 @@ static const struct attribute_group ad5504_attribute_group = {
};
static struct attribute *ad5501_attributes[] = {
- &iio_dev_attr_out0_raw.dev_attr.attr,
- &iio_dev_attr_out0_powerdown.dev_attr.attr,
- &iio_dev_attr_out_powerdown_mode.dev_attr.attr,
- &iio_const_attr_out_powerdown_mode_available.dev_attr.attr,
- &iio_dev_attr_out_scale.dev_attr.attr,
+ &iio_dev_attr_out_voltage0_raw.dev_attr.attr,
+ &iio_dev_attr_out_voltage0_powerdown.dev_attr.attr,
+ &iio_dev_attr_out_voltage_powerdown_mode.dev_attr.attr,
+ &iio_const_attr_out_voltage_powerdown_mode_available.dev_attr.attr,
+ &iio_dev_attr_out_voltage_scale.dev_attr.attr,
NULL,
};
@@ -246,12 +245,13 @@ static struct attribute *ad5504_ev_attributes[] = {
static struct attribute_group ad5504_ev_attribute_group = {
.attrs = ad5504_ev_attributes,
+ .name = "events",
};
static irqreturn_t ad5504_event_handler(int irq, void *private)
{
- iio_push_event(private, 0,
- IIO_UNMOD_EVENT_CODE(IIO_EV_CLASS_TEMP,
+ iio_push_event(private,
+ IIO_UNMOD_EVENT_CODE(IIO_TEMP,
0,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
@@ -262,14 +262,12 @@ static irqreturn_t ad5504_event_handler(int irq, void *private)
static const struct iio_info ad5504_info = {
.attrs = &ad5504_attribute_group,
- .num_interrupt_lines = 1,
.event_attrs = &ad5504_ev_attribute_group,
.driver_module = THIS_MODULE,
};
static const struct iio_info ad5501_info = {
.attrs = &ad5501_attribute_group,
- .num_interrupt_lines = 1,
.event_attrs = &ad5504_ev_attribute_group,
.driver_module = THIS_MODULE,
};
@@ -277,26 +275,27 @@ static const struct iio_info ad5501_info = {
static int __devinit ad5504_probe(struct spi_device *spi)
{
struct ad5504_platform_data *pdata = spi->dev.platform_data;
+ struct iio_dev *indio_dev;
struct ad5504_state *st;
+ struct regulator *reg;
int ret, voltage_uv = 0;
- st = kzalloc(sizeof(*st), GFP_KERNEL);
- if (st == NULL) {
+ indio_dev = iio_allocate_device(sizeof(*st));
+ if (indio_dev == NULL) {
ret = -ENOMEM;
goto error_ret;
}
-
- spi_set_drvdata(spi, st);
-
- st->reg = regulator_get(&spi->dev, "vcc");
- if (!IS_ERR(st->reg)) {
- ret = regulator_enable(st->reg);
+ reg = regulator_get(&spi->dev, "vcc");
+ if (!IS_ERR(reg)) {
+ ret = regulator_enable(reg);
if (ret)
goto error_put_reg;
- voltage_uv = regulator_get_voltage(st->reg);
+ voltage_uv = regulator_get_voltage(reg);
}
+ spi_set_drvdata(spi, indio_dev);
+ st = iio_priv(indio_dev);
if (voltage_uv)
st->vref_mv = voltage_uv / 1000;
else if (pdata)
@@ -304,24 +303,15 @@ static int __devinit ad5504_probe(struct spi_device *spi)
else
dev_warn(&spi->dev, "reference voltage unspecified\n");
+ st->reg = reg;
st->spi = spi;
- st->indio_dev = iio_allocate_device(0);
- if (st->indio_dev == NULL) {
- ret = -ENOMEM;
- goto error_disable_reg;
- }
- st->indio_dev->dev.parent = &spi->dev;
- st->indio_dev->name = spi_get_device_id(st->spi)->name;
+ indio_dev->dev.parent = &spi->dev;
+ indio_dev->name = spi_get_device_id(st->spi)->name;
if (spi_get_device_id(st->spi)->driver_data == ID_AD5501)
- st->indio_dev->info = &ad5501_info;
+ indio_dev->info = &ad5501_info;
else
- st->indio_dev->info = &ad5504_info;
- st->indio_dev->dev_data = (void *)(st);
- st->indio_dev->modes = INDIO_DIRECT_MODE;
-
- ret = iio_device_register(st->indio_dev);
- if (ret)
- goto error_free_dev;
+ indio_dev->info = &ad5504_info;
+ indio_dev->modes = INDIO_DIRECT_MODE;
if (spi->irq) {
ret = request_threaded_irq(spi->irq,
@@ -329,44 +319,45 @@ static int __devinit ad5504_probe(struct spi_device *spi)
&ad5504_event_handler,
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
spi_get_device_id(st->spi)->name,
- st->indio_dev);
+ indio_dev);
if (ret)
- goto error_unreg_iio_device;
+ goto error_disable_reg;
}
+ ret = iio_device_register(indio_dev);
+ if (ret)
+ goto error_free_irq;
+
return 0;
-error_unreg_iio_device:
- iio_device_unregister(st->indio_dev);
-error_free_dev:
- iio_free_device(st->indio_dev);
+error_free_irq:
+ free_irq(spi->irq, indio_dev);
error_disable_reg:
- if (!IS_ERR(st->reg))
- regulator_disable(st->reg);
+ if (!IS_ERR(reg))
+ regulator_disable(reg);
error_put_reg:
- if (!IS_ERR(st->reg))
- regulator_put(st->reg);
+ if (!IS_ERR(reg))
+ regulator_put(reg);
- kfree(st);
+ iio_free_device(indio_dev);
error_ret:
return ret;
}
static int __devexit ad5504_remove(struct spi_device *spi)
{
- struct ad5504_state *st = spi_get_drvdata(spi);
+ struct iio_dev *indio_dev = spi_get_drvdata(spi);
+ struct ad5504_state *st = iio_priv(indio_dev);
+ iio_device_unregister(indio_dev);
if (spi->irq)
- free_irq(spi->irq, st->indio_dev);
-
- iio_device_unregister(st->indio_dev);
+ free_irq(spi->irq, indio_dev);
if (!IS_ERR(st->reg)) {
regulator_disable(st->reg);
regulator_put(st->reg);
}
-
- kfree(st);
+ iio_free_device(indio_dev);
return 0;
}
diff --git a/drivers/staging/iio/dac/ad5504.h b/drivers/staging/iio/dac/ad5504.h
index 13ef353..85beb1d 100644
--- a/drivers/staging/iio/dac/ad5504.h
+++ b/drivers/staging/iio/dac/ad5504.h
@@ -41,7 +41,6 @@ struct ad5504_platform_data {
/**
* struct ad5446_state - driver instance specific data
- * @indio_dev: the industrial I/O device
* @us: spi_device
* @reg: supply regulator
* @vref_mv: actual reference voltage used
@@ -50,7 +49,6 @@ struct ad5504_platform_data {
*/
struct ad5504_state {
- struct iio_dev *indio_dev;
struct spi_device *spi;
struct regulator *reg;
unsigned short vref_mv;
diff --git a/drivers/staging/iio/dac/ad5624r.h b/drivers/staging/iio/dac/ad5624r.h
index c16df4e..b71c6a0 100644
--- a/drivers/staging/iio/dac/ad5624r.h
+++ b/drivers/staging/iio/dac/ad5624r.h
@@ -53,7 +53,6 @@ struct ad5624r_chip_info {
*/
struct ad5624r_state {
- struct iio_dev *indio_dev;
struct spi_device *us;
const struct ad5624r_chip_info *chip_info;
struct regulator *reg;
diff --git a/drivers/staging/iio/dac/ad5624r_spi.c b/drivers/staging/iio/dac/ad5624r_spi.c
index c679981..8e81fce 100644
--- a/drivers/staging/iio/dac/ad5624r_spi.c
+++ b/drivers/staging/iio/dac/ad5624r_spi.c
@@ -7,7 +7,6 @@
*/
#include <linux/interrupt.h>
-#include <linux/gpio.h>
#include <linux/fs.h>
#include <linux/device.h>
#include <linux/kernel.h>
@@ -15,6 +14,7 @@
#include <linux/slab.h>
#include <linux/sysfs.h>
#include <linux/regulator/consumer.h>
+#include <linux/module.h>
#include "../iio.h"
#include "../sysfs.h"
@@ -49,7 +49,7 @@ static const struct ad5624r_chip_info ad5624r_chip_info_tbl[] = {
};
static int ad5624r_spi_write(struct spi_device *spi,
- u8 cmd, u8 addr, u16 val, u8 len)
+ u8 cmd, u8 addr, u16 val, u8 shift)
{
u32 data;
u8 msg[3];
@@ -62,7 +62,7 @@ static int ad5624r_spi_write(struct spi_device *spi,
* 14-, 12-bit input code followed by 0, 2, or 4 don't care bits,
* for the AD5664R, AD5644R, and AD5624R, respectively.
*/
- data = (0 << 22) | (cmd << 19) | (addr << 16) | (val << (16 - len));
+ data = (0 << 22) | (cmd << 19) | (addr << 16) | (val << shift);
msg[0] = data >> 16;
msg[1] = data >> 8;
msg[2] = data;
@@ -77,7 +77,7 @@ static ssize_t ad5624r_write_dac(struct device *dev,
long readin;
int ret;
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5624r_state *st = iio_dev_get_devdata(indio_dev);
+ struct ad5624r_state *st = iio_priv(indio_dev);
struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
ret = strict_strtol(buf, 10, &readin);
@@ -94,7 +94,7 @@ static ssize_t ad5624r_read_powerdown_mode(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5624r_state *st = iio_dev_get_devdata(indio_dev);
+ struct ad5624r_state *st = iio_priv(indio_dev);
char mode[][15] = {"", "1kohm_to_gnd", "100kohm_to_gnd", "three_state"};
@@ -106,7 +106,7 @@ static ssize_t ad5624r_write_powerdown_mode(struct device *dev,
const char *buf, size_t len)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5624r_state *st = iio_dev_get_devdata(indio_dev);
+ struct ad5624r_state *st = iio_priv(indio_dev);
int ret;
if (sysfs_streq(buf, "1kohm_to_gnd"))
@@ -126,7 +126,7 @@ static ssize_t ad5624r_read_dac_powerdown(struct device *dev,
char *buf)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5624r_state *st = iio_dev_get_devdata(indio_dev);
+ struct ad5624r_state *st = iio_priv(indio_dev);
struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
return sprintf(buf, "%d\n",
@@ -140,7 +140,7 @@ static ssize_t ad5624r_write_dac_powerdown(struct device *dev,
long readin;
int ret;
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5624r_state *st = iio_dev_get_devdata(indio_dev);
+ struct ad5624r_state *st = iio_priv(indio_dev);
struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
ret = strict_strtol(buf, 10, &readin);
@@ -166,28 +166,28 @@ static ssize_t ad5624r_show_scale(struct device *dev,
char *buf)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5624r_state *st = iio_dev_get_devdata(indio_dev);
+ struct ad5624r_state *st = iio_priv(indio_dev);
/* Corresponds to Vref / 2^(bits) */
unsigned int scale_uv = (st->vref_mv * 1000) >> st->chip_info->bits;
return sprintf(buf, "%d.%03d\n", scale_uv / 1000, scale_uv % 1000);
}
-static IIO_DEVICE_ATTR(out_scale, S_IRUGO, ad5624r_show_scale, NULL, 0);
+static IIO_DEVICE_ATTR(out_voltage_scale, S_IRUGO, ad5624r_show_scale, NULL, 0);
static IIO_DEV_ATTR_OUT_RAW(0, ad5624r_write_dac, AD5624R_ADDR_DAC0);
static IIO_DEV_ATTR_OUT_RAW(1, ad5624r_write_dac, AD5624R_ADDR_DAC1);
static IIO_DEV_ATTR_OUT_RAW(2, ad5624r_write_dac, AD5624R_ADDR_DAC2);
static IIO_DEV_ATTR_OUT_RAW(3, ad5624r_write_dac, AD5624R_ADDR_DAC3);
-static IIO_DEVICE_ATTR(out_powerdown_mode, S_IRUGO |
+static IIO_DEVICE_ATTR(out_voltage_powerdown_mode, S_IRUGO |
S_IWUSR, ad5624r_read_powerdown_mode,
ad5624r_write_powerdown_mode, 0);
-static IIO_CONST_ATTR(out_powerdown_mode_available,
+static IIO_CONST_ATTR(out_voltage_powerdown_mode_available,
"1kohm_to_gnd 100kohm_to_gnd three_state");
#define IIO_DEV_ATTR_DAC_POWERDOWN(_num, _show, _store, _addr) \
- IIO_DEVICE_ATTR(out##_num##_powerdown, \
+ IIO_DEVICE_ATTR(out_voltage##_num##_powerdown, \
S_IRUGO | S_IWUSR, _show, _store, _addr)
static IIO_DEV_ATTR_DAC_POWERDOWN(0, ad5624r_read_dac_powerdown,
@@ -200,17 +200,17 @@ static IIO_DEV_ATTR_DAC_POWERDOWN(3, ad5624r_read_dac_powerdown,
ad5624r_write_dac_powerdown, 3);
static struct attribute *ad5624r_attributes[] = {
- &iio_dev_attr_out0_raw.dev_attr.attr,
- &iio_dev_attr_out1_raw.dev_attr.attr,
- &iio_dev_attr_out2_raw.dev_attr.attr,
- &iio_dev_attr_out3_raw.dev_attr.attr,
- &iio_dev_attr_out0_powerdown.dev_attr.attr,
- &iio_dev_attr_out1_powerdown.dev_attr.attr,
- &iio_dev_attr_out2_powerdown.dev_attr.attr,
- &iio_dev_attr_out3_powerdown.dev_attr.attr,
- &iio_dev_attr_out_powerdown_mode.dev_attr.attr,
- &iio_const_attr_out_powerdown_mode_available.dev_attr.attr,
- &iio_dev_attr_out_scale.dev_attr.attr,
+ &iio_dev_attr_out_voltage0_raw.dev_attr.attr,
+ &iio_dev_attr_out_voltage1_raw.dev_attr.attr,
+ &iio_dev_attr_out_voltage2_raw.dev_attr.attr,
+ &iio_dev_attr_out_voltage3_raw.dev_attr.attr,
+ &iio_dev_attr_out_voltage0_powerdown.dev_attr.attr,
+ &iio_dev_attr_out_voltage1_powerdown.dev_attr.attr,
+ &iio_dev_attr_out_voltage2_powerdown.dev_attr.attr,
+ &iio_dev_attr_out_voltage3_powerdown.dev_attr.attr,
+ &iio_dev_attr_out_voltage_powerdown_mode.dev_attr.attr,
+ &iio_const_attr_out_voltage_powerdown_mode_available.dev_attr.attr,
+ &iio_dev_attr_out_voltage_scale.dev_attr.attr,
NULL,
};
@@ -226,15 +226,15 @@ static const struct iio_info ad5624r_info = {
static int __devinit ad5624r_probe(struct spi_device *spi)
{
struct ad5624r_state *st;
+ struct iio_dev *indio_dev;
int ret, voltage_uv = 0;
- st = kzalloc(sizeof(*st), GFP_KERNEL);
- if (st == NULL) {
+ indio_dev = iio_allocate_device(sizeof(*st));
+ if (indio_dev == NULL) {
ret = -ENOMEM;
goto error_ret;
}
- spi_set_drvdata(spi, st);
-
+ st = iio_priv(indio_dev);
st->reg = regulator_get(&spi->dev, "vcc");
if (!IS_ERR(st->reg)) {
ret = regulator_enable(st->reg);
@@ -244,6 +244,7 @@ static int __devinit ad5624r_probe(struct spi_device *spi)
voltage_uv = regulator_get_voltage(st->reg);
}
+ spi_set_drvdata(spi, indio_dev);
st->chip_info =
&ad5624r_chip_info_tbl[spi_get_device_id(spi)->driver_data];
@@ -253,54 +254,46 @@ static int __devinit ad5624r_probe(struct spi_device *spi)
st->vref_mv = st->chip_info->int_vref_mv;
st->us = spi;
- st->indio_dev = iio_allocate_device(0);
- if (st->indio_dev == NULL) {
- ret = -ENOMEM;
- goto error_disable_reg;
- }
- st->indio_dev->dev.parent = &spi->dev;
- st->indio_dev->name = spi_get_device_id(spi)->name;
- st->indio_dev->info = &ad5624r_info;
- st->indio_dev->dev_data = (void *)(st);
- st->indio_dev->modes = INDIO_DIRECT_MODE;
- ret = iio_device_register(st->indio_dev);
- if (ret)
- goto error_free_dev;
+ indio_dev->dev.parent = &spi->dev;
+ indio_dev->name = spi_get_device_id(spi)->name;
+ indio_dev->info = &ad5624r_info;
+ indio_dev->modes = INDIO_DIRECT_MODE;
ret = ad5624r_spi_write(spi, AD5624R_CMD_INTERNAL_REFER_SETUP, 0,
!!voltage_uv, 16);
if (ret)
- goto error_free_dev;
+ goto error_disable_reg;
+
+ ret = iio_device_register(indio_dev);
+ if (ret)
+ goto error_disable_reg;
return 0;
-error_free_dev:
- iio_free_device(st->indio_dev);
error_disable_reg:
if (!IS_ERR(st->reg))
regulator_disable(st->reg);
error_put_reg:
if (!IS_ERR(st->reg))
regulator_put(st->reg);
-
- kfree(st);
+ iio_free_device(indio_dev);
error_ret:
+
return ret;
}
static int __devexit ad5624r_remove(struct spi_device *spi)
{
- struct ad5624r_state *st = spi_get_drvdata(spi);
-
- iio_device_unregister(st->indio_dev);
+ struct iio_dev *indio_dev = spi_get_drvdata(spi);
+ struct ad5624r_state *st = iio_priv(indio_dev);
+ iio_device_unregister(indio_dev);
if (!IS_ERR(st->reg)) {
regulator_disable(st->reg);
regulator_put(st->reg);
}
-
- kfree(st);
+ iio_free_device(indio_dev);
return 0;
}
diff --git a/drivers/staging/iio/dac/ad5791.c b/drivers/staging/iio/dac/ad5791.c
index 4eda25c..6fbca8d 100644
--- a/drivers/staging/iio/dac/ad5791.c
+++ b/drivers/staging/iio/dac/ad5791.c
@@ -7,7 +7,6 @@
*/
#include <linux/interrupt.h>
-#include <linux/gpio.h>
#include <linux/fs.h>
#include <linux/device.h>
#include <linux/kernel.h>
@@ -15,6 +14,7 @@
#include <linux/slab.h>
#include <linux/sysfs.h>
#include <linux/regulator/consumer.h>
+#include <linux/module.h>
#include "../iio.h"
#include "../sysfs.h"
@@ -71,54 +71,29 @@ static int ad5791_spi_read(struct spi_device *spi, u8 addr, u32 *val)
return ret;
}
-static ssize_t ad5791_write_dac(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5791_state *st = iio_dev_get_devdata(indio_dev);
- struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
- long readin;
- int ret;
-
- ret = strict_strtol(buf, 10, &readin);
- if (ret)
- return ret;
-
- readin += (1 << (st->chip_info->bits - 1));
- readin &= AD5791_RES_MASK(st->chip_info->bits);
- readin <<= st->chip_info->left_shift;
-
- ret = ad5791_spi_write(st->spi, this_attr->address, readin);
- return ret ? ret : len;
+#define AD5791_CHAN(bits, shift) { \
+ .type = IIO_VOLTAGE, \
+ .output = 1, \
+ .indexed = 1, \
+ .address = AD5791_ADDR_DAC0, \
+ .channel = 0, \
+ .info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED) | \
+ (1 << IIO_CHAN_INFO_OFFSET_SHARED), \
+ .scan_type = IIO_ST('u', bits, 24, shift) \
}
-static ssize_t ad5791_read_dac(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5791_state *st = iio_dev_get_devdata(indio_dev);
- struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
- int ret;
- int val;
-
- ret = ad5791_spi_read(st->spi, this_attr->address, &val);
- if (ret)
- return ret;
-
- val &= AD5791_DAC_MASK;
- val >>= st->chip_info->left_shift;
- val -= (1 << (st->chip_info->bits - 1));
-
- return sprintf(buf, "%d\n", val);
-}
+static const struct iio_chan_spec ad5791_channels[] = {
+ [ID_AD5760] = AD5791_CHAN(16, 4),
+ [ID_AD5780] = AD5791_CHAN(18, 2),
+ [ID_AD5781] = AD5791_CHAN(18, 2),
+ [ID_AD5791] = AD5791_CHAN(20, 0)
+};
static ssize_t ad5791_read_powerdown_mode(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5791_state *st = iio_dev_get_devdata(indio_dev);
+ struct ad5791_state *st = iio_priv(indio_dev);
const char mode[][14] = {"6kohm_to_gnd", "three_state"};
@@ -130,7 +105,7 @@ static ssize_t ad5791_write_powerdown_mode(struct device *dev,
const char *buf, size_t len)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5791_state *st = iio_dev_get_devdata(indio_dev);
+ struct ad5791_state *st = iio_priv(indio_dev);
int ret;
if (sysfs_streq(buf, "6kohm_to_gnd"))
@@ -148,7 +123,7 @@ static ssize_t ad5791_read_dac_powerdown(struct device *dev,
char *buf)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5791_state *st = iio_dev_get_devdata(indio_dev);
+ struct ad5791_state *st = iio_priv(indio_dev);
return sprintf(buf, "%d\n", st->pwr_down);
}
@@ -160,7 +135,7 @@ static ssize_t ad5791_write_dac_powerdown(struct device *dev,
long readin;
int ret;
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5791_state *st = iio_dev_get_devdata(indio_dev);
+ struct ad5791_state *st = iio_priv(indio_dev);
ret = strict_strtol(buf, 10, &readin);
if (ret)
@@ -183,58 +158,24 @@ static ssize_t ad5791_write_dac_powerdown(struct device *dev,
return ret ? ret : len;
}
-static ssize_t ad5791_show_scale(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5791_state *st = iio_dev_get_devdata(indio_dev);
- /* Corresponds to Vref / 2^(bits) */
- unsigned int scale_uv = (st->vref_mv * 1000) >> st->chip_info->bits;
-
- return sprintf(buf, "%d.%03d\n", scale_uv / 1000, scale_uv % 1000);
-}
-static IIO_DEVICE_ATTR(out_scale, S_IRUGO, ad5791_show_scale, NULL, 0);
-
-static ssize_t ad5791_show_name(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct ad5791_state *st = iio_dev_get_devdata(indio_dev);
-
- return sprintf(buf, "%s\n", spi_get_device_id(st->spi)->name);
-}
-static IIO_DEVICE_ATTR(name, S_IRUGO, ad5791_show_name, NULL, 0);
-
-#define IIO_DEV_ATTR_OUT_RW_RAW(_num, _show, _store, _addr) \
- IIO_DEVICE_ATTR(out##_num##_raw, \
- S_IRUGO | S_IWUSR, _show, _store, _addr)
-
-static IIO_DEV_ATTR_OUT_RW_RAW(0, ad5791_read_dac,
- ad5791_write_dac, AD5791_ADDR_DAC0);
-
-static IIO_DEVICE_ATTR(out_powerdown_mode, S_IRUGO |
+static IIO_DEVICE_ATTR(out_voltage_powerdown_mode, S_IRUGO |
S_IWUSR, ad5791_read_powerdown_mode,
ad5791_write_powerdown_mode, 0);
-static IIO_CONST_ATTR(out_powerdown_mode_available,
+static IIO_CONST_ATTR(out_voltage_powerdown_mode_available,
"6kohm_to_gnd three_state");
#define IIO_DEV_ATTR_DAC_POWERDOWN(_num, _show, _store, _addr) \
- IIO_DEVICE_ATTR(out##_num##_powerdown, \
+ IIO_DEVICE_ATTR(out_voltage##_num##_powerdown, \
S_IRUGO | S_IWUSR, _show, _store, _addr)
static IIO_DEV_ATTR_DAC_POWERDOWN(0, ad5791_read_dac_powerdown,
ad5791_write_dac_powerdown, 0);
static struct attribute *ad5791_attributes[] = {
- &iio_dev_attr_out0_raw.dev_attr.attr,
- &iio_dev_attr_out0_powerdown.dev_attr.attr,
- &iio_dev_attr_out_powerdown_mode.dev_attr.attr,
- &iio_const_attr_out_powerdown_mode_available.dev_attr.attr,
- &iio_dev_attr_out_scale.dev_attr.attr,
- &iio_dev_attr_name.dev_attr.attr,
+ &iio_dev_attr_out_voltage0_powerdown.dev_attr.attr,
+ &iio_dev_attr_out_voltage_powerdown_mode.dev_attr.attr,
+ &iio_const_attr_out_voltage_powerdown_mode_available.dev_attr.attr,
NULL,
};
@@ -263,31 +204,78 @@ static int ad5780_get_lin_comp(unsigned int span)
else
return AD5780_LINCOMP_10_20;
}
-
static const struct ad5791_chip_info ad5791_chip_info_tbl[] = {
[ID_AD5760] = {
- .bits = 16,
- .left_shift = 4,
.get_lin_comp = ad5780_get_lin_comp,
},
[ID_AD5780] = {
- .bits = 18,
- .left_shift = 2,
.get_lin_comp = ad5780_get_lin_comp,
},
[ID_AD5781] = {
- .bits = 18,
- .left_shift = 2,
.get_lin_comp = ad5791_get_lin_comp,
},
[ID_AD5791] = {
- .bits = 20,
- .left_shift = 0,
.get_lin_comp = ad5791_get_lin_comp,
},
};
+static int ad5791_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int *val,
+ int *val2,
+ long m)
+{
+ struct ad5791_state *st = iio_priv(indio_dev);
+ u64 val64;
+ int ret;
+
+ switch (m) {
+ case 0:
+ ret = ad5791_spi_read(st->spi, chan->address, val);
+ if (ret)
+ return ret;
+ *val &= AD5791_DAC_MASK;
+ *val >>= chan->scan_type.shift;
+ return IIO_VAL_INT;
+ case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+ *val = 0;
+ *val2 = (((u64)st->vref_mv) * 1000000ULL) >> chan->scan_type.realbits;
+ return IIO_VAL_INT_PLUS_MICRO;
+ case (1 << IIO_CHAN_INFO_OFFSET_SHARED):
+ val64 = (((u64)st->vref_neg_mv) << chan->scan_type.realbits);
+ do_div(val64, st->vref_mv);
+ *val = -val64;
+ return IIO_VAL_INT;
+ default:
+ return -EINVAL;
+ }
+
+};
+
+
+static int ad5791_write_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int val,
+ int val2,
+ long mask)
+{
+ struct ad5791_state *st = iio_priv(indio_dev);
+
+ switch (mask) {
+ case 0:
+ val &= AD5791_RES_MASK(chan->scan_type.realbits);
+ val <<= chan->scan_type.shift;
+
+ return ad5791_spi_write(st->spi, chan->address, val);
+
+ default:
+ return -EINVAL;
+ }
+}
+
static const struct iio_info ad5791_info = {
+ .read_raw = &ad5791_read_raw,
+ .write_raw = &ad5791_write_raw,
.attrs = &ad5791_attribute_group,
.driver_module = THIS_MODULE,
};
@@ -295,17 +283,16 @@ static const struct iio_info ad5791_info = {
static int __devinit ad5791_probe(struct spi_device *spi)
{
struct ad5791_platform_data *pdata = spi->dev.platform_data;
+ struct iio_dev *indio_dev;
struct ad5791_state *st;
int ret, pos_voltage_uv = 0, neg_voltage_uv = 0;
- st = kzalloc(sizeof(*st), GFP_KERNEL);
- if (st == NULL) {
+ indio_dev = iio_allocate_device(sizeof(*st));
+ if (indio_dev == NULL) {
ret = -ENOMEM;
goto error_ret;
}
-
- spi_set_drvdata(spi, st);
-
+ st = iio_priv(indio_dev);
st->reg_vdd = regulator_get(&spi->dev, "vdd");
if (!IS_ERR(st->reg_vdd)) {
ret = regulator_enable(st->reg_vdd);
@@ -324,19 +311,25 @@ static int __devinit ad5791_probe(struct spi_device *spi)
neg_voltage_uv = regulator_get_voltage(st->reg_vss);
}
- if (!IS_ERR(st->reg_vss) && !IS_ERR(st->reg_vdd))
- st->vref_mv = (pos_voltage_uv - neg_voltage_uv) / 1000;
- else if (pdata)
- st->vref_mv = pdata->vref_pos_mv - pdata->vref_neg_mv;
- else
+ st->pwr_down = true;
+ st->spi = spi;
+
+ if (!IS_ERR(st->reg_vss) && !IS_ERR(st->reg_vdd)) {
+ st->vref_mv = (pos_voltage_uv + neg_voltage_uv) / 1000;
+ st->vref_neg_mv = neg_voltage_uv / 1000;
+ } else if (pdata) {
+ st->vref_mv = pdata->vref_pos_mv + pdata->vref_neg_mv;
+ st->vref_neg_mv = pdata->vref_neg_mv;
+ } else {
dev_warn(&spi->dev, "reference voltage unspecified\n");
+ }
ret = ad5791_spi_write(spi, AD5791_ADDR_SW_CTRL, AD5791_SWCTRL_RESET);
if (ret)
goto error_disable_reg_neg;
- st->chip_info =
- &ad5791_chip_info_tbl[spi_get_device_id(spi)->driver_data];
+ st->chip_info = &ad5791_chip_info_tbl[spi_get_device_id(spi)
+ ->driver_data];
st->ctrl = AD5761_CTRL_LINCOMP(st->chip_info->get_lin_comp(st->vref_mv))
@@ -348,28 +341,20 @@ static int __devinit ad5791_probe(struct spi_device *spi)
if (ret)
goto error_disable_reg_neg;
- st->pwr_down = true;
-
- st->spi = spi;
- st->indio_dev = iio_allocate_device(0);
- if (st->indio_dev == NULL) {
- ret = -ENOMEM;
- goto error_disable_reg_neg;
- }
- st->indio_dev->dev.parent = &spi->dev;
- st->indio_dev->dev_data = (void *)(st);
- st->indio_dev->info = &ad5791_info;
- st->indio_dev->modes = INDIO_DIRECT_MODE;
-
- ret = iio_device_register(st->indio_dev);
+ spi_set_drvdata(spi, indio_dev);
+ indio_dev->dev.parent = &spi->dev;
+ indio_dev->info = &ad5791_info;
+ indio_dev->modes = INDIO_DIRECT_MODE;
+ indio_dev->channels
+ = &ad5791_channels[spi_get_device_id(spi)->driver_data];
+ indio_dev->num_channels = 1;
+ indio_dev->name = spi_get_device_id(st->spi)->name;
+ ret = iio_device_register(indio_dev);
if (ret)
- goto error_free_dev;
+ goto error_disable_reg_neg;
return 0;
-error_free_dev:
- iio_free_device(st->indio_dev);
-
error_disable_reg_neg:
if (!IS_ERR(st->reg_vss))
regulator_disable(st->reg_vss);
@@ -382,18 +367,18 @@ error_put_reg_neg:
error_put_reg_pos:
if (!IS_ERR(st->reg_vdd))
regulator_put(st->reg_vdd);
-
- kfree(st);
+ iio_free_device(indio_dev);
error_ret:
+
return ret;
}
static int __devexit ad5791_remove(struct spi_device *spi)
{
- struct ad5791_state *st = spi_get_drvdata(spi);
-
- iio_device_unregister(st->indio_dev);
+ struct iio_dev *indio_dev = spi_get_drvdata(spi);
+ struct ad5791_state *st = iio_priv(indio_dev);
+ iio_device_unregister(indio_dev);
if (!IS_ERR(st->reg_vdd)) {
regulator_disable(st->reg_vdd);
regulator_put(st->reg_vdd);
@@ -403,8 +388,7 @@ static int __devexit ad5791_remove(struct spi_device *spi)
regulator_disable(st->reg_vss);
regulator_put(st->reg_vss);
}
-
- kfree(st);
+ iio_free_device(indio_dev);
return 0;
}
diff --git a/drivers/staging/iio/dac/ad5791.h b/drivers/staging/iio/dac/ad5791.h
index f09ad9a..fd7edbd 100644
--- a/drivers/staging/iio/dac/ad5791.h
+++ b/drivers/staging/iio/dac/ad5791.h
@@ -68,35 +68,31 @@ struct ad5791_platform_data {
/**
* struct ad5791_chip_info - chip specific information
- * @bits: accuracy of the DAC in bits
- * @left_shift: number of bits the datum must be shifted
* @get_lin_comp: function pointer to the device specific function
*/
struct ad5791_chip_info {
- u8 bits;
- u8 left_shift;
int (*get_lin_comp) (unsigned int span);
};
/**
* struct ad5791_state - driver instance specific data
- * @indio_dev: the industrial I/O device
* @us: spi_device
* @reg_vdd: positive supply regulator
* @reg_vss: negative supply regulator
* @chip_info: chip model specific constants
* @vref_mv: actual reference voltage used
+ * @vref_neg_mv: voltage of the negative supply
* @pwr_down_mode current power down mode
*/
struct ad5791_state {
- struct iio_dev *indio_dev;
struct spi_device *spi;
struct regulator *reg_vdd;
struct regulator *reg_vss;
const struct ad5791_chip_info *chip_info;
unsigned short vref_mv;
+ unsigned int vref_neg_mv;
unsigned ctrl;
unsigned pwr_down_mode;
bool pwr_down;
diff --git a/drivers/staging/iio/dac/dac.h b/drivers/staging/iio/dac/dac.h
index 1d82f35..0754d71 100644
--- a/drivers/staging/iio/dac/dac.h
+++ b/drivers/staging/iio/dac/dac.h
@@ -3,4 +3,4 @@
*/
#define IIO_DEV_ATTR_OUT_RAW(_num, _store, _addr) \
- IIO_DEVICE_ATTR(out##_num##_raw, S_IWUSR, NULL, _store, _addr)
+ IIO_DEVICE_ATTR(out_voltage##_num##_raw, S_IWUSR, NULL, _store, _addr)
diff --git a/drivers/staging/iio/dac/max517.c b/drivers/staging/iio/dac/max517.c
index 2fe34d2..adfbd20 100644
--- a/drivers/staging/iio/dac/max517.c
+++ b/drivers/staging/iio/dac/max517.c
@@ -26,6 +26,7 @@
#include <linux/err.h>
#include "../iio.h"
+#include "../sysfs.h"
#include "dac.h"
#include "max517.h"
@@ -58,8 +59,8 @@ static ssize_t max517_set_value(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count, int channel)
{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct max517_data *data = iio_dev_get_devdata(dev_info);
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
+ struct max517_data *data = iio_priv(indio_dev);
struct i2c_client *client = data->client;
u8 outbuf[4]; /* 1x or 2x command + value */
int outbuf_size = 0;
@@ -119,15 +120,16 @@ static ssize_t max517_set_value_both(struct device *dev,
{
return max517_set_value(dev, attr, buf, count, 3);
}
-static IIO_DEVICE_ATTR_NAMED(out1and2_raw, out1&2_raw, S_IWUSR, NULL,
- max517_set_value_both, -1);
+static IIO_DEVICE_ATTR_NAMED(out_voltage1and2_raw,
+ out_voltage1&2_raw, S_IWUSR, NULL,
+ max517_set_value_both, -1);
static ssize_t max517_show_scale(struct device *dev,
struct device_attribute *attr,
char *buf, int channel)
{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct max517_data *data = iio_dev_get_devdata(dev_info);
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
+ struct max517_data *data = iio_priv(indio_dev);
/* Corresponds to Vref / 2^(bits) */
unsigned int scale_uv = (data->vref_mv[channel - 1] * 1000) >> 8;
@@ -140,7 +142,8 @@ static ssize_t max517_show_scale1(struct device *dev,
{
return max517_show_scale(dev, attr, buf, 1);
}
-static IIO_DEVICE_ATTR(out1_scale, S_IRUGO, max517_show_scale1, NULL, 0);
+static IIO_DEVICE_ATTR(out_voltage1_scale, S_IRUGO,
+ max517_show_scale1, NULL, 0);
static ssize_t max517_show_scale2(struct device *dev,
struct device_attribute *attr,
@@ -148,12 +151,13 @@ static ssize_t max517_show_scale2(struct device *dev,
{
return max517_show_scale(dev, attr, buf, 2);
}
-static IIO_DEVICE_ATTR(out2_scale, S_IRUGO, max517_show_scale2, NULL, 0);
+static IIO_DEVICE_ATTR(out_voltage2_scale, S_IRUGO,
+ max517_show_scale2, NULL, 0);
/* On MAX517 variant, we have one output */
static struct attribute *max517_attributes[] = {
- &iio_dev_attr_out1_raw.dev_attr.attr,
- &iio_dev_attr_out1_scale.dev_attr.attr,
+ &iio_dev_attr_out_voltage1_raw.dev_attr.attr,
+ &iio_dev_attr_out_voltage1_scale.dev_attr.attr,
NULL
};
@@ -163,11 +167,11 @@ static struct attribute_group max517_attribute_group = {
/* On MAX518 and MAX519 variant, we have two outputs */
static struct attribute *max518_attributes[] = {
- &iio_dev_attr_out1_raw.dev_attr.attr,
- &iio_dev_attr_out1_scale.dev_attr.attr,
- &iio_dev_attr_out2_raw.dev_attr.attr,
- &iio_dev_attr_out2_scale.dev_attr.attr,
- &iio_dev_attr_out1and2_raw.dev_attr.attr,
+ &iio_dev_attr_out_voltage1_raw.dev_attr.attr,
+ &iio_dev_attr_out_voltage1_scale.dev_attr.attr,
+ &iio_dev_attr_out_voltage2_raw.dev_attr.attr,
+ &iio_dev_attr_out_voltage2_scale.dev_attr.attr,
+ &iio_dev_attr_out_voltage1and2_raw.dev_attr.attr,
NULL
};
@@ -203,35 +207,28 @@ static int max517_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct max517_data *data;
+ struct iio_dev *indio_dev;
struct max517_platform_data *platform_data = client->dev.platform_data;
int err;
- data = kzalloc(sizeof(struct max517_data), GFP_KERNEL);
- if (!data) {
+ indio_dev = iio_allocate_device(sizeof(*data));
+ if (indio_dev == NULL) {
err = -ENOMEM;
goto exit;
}
-
- i2c_set_clientdata(client, data);
-
+ data = iio_priv(indio_dev);
+ i2c_set_clientdata(client, indio_dev);
data->client = client;
- data->indio_dev = iio_allocate_device(0);
- if (data->indio_dev == NULL) {
- err = -ENOMEM;
- goto exit_free_data;
- }
-
/* establish that the iio_dev is a child of the i2c device */
- data->indio_dev->dev.parent = &client->dev;
+ indio_dev->dev.parent = &client->dev;
/* reduced attribute set for MAX517 */
if (id->driver_data == ID_MAX517)
- data->indio_dev->info = &max517_info;
+ indio_dev->info = &max517_info;
else
- data->indio_dev->info = &max518_info;
- data->indio_dev->dev_data = (void *)(data);
- data->indio_dev->modes = INDIO_DIRECT_MODE;
+ indio_dev->info = &max518_info;
+ indio_dev->modes = INDIO_DIRECT_MODE;
/*
* Reference voltage on MAX518 and default is 5V, else take vref_mv
@@ -244,7 +241,7 @@ static int max517_probe(struct i2c_client *client,
data->vref_mv[1] = platform_data->vref_mv[1];
}
- err = iio_device_register(data->indio_dev);
+ err = iio_device_register(indio_dev);
if (err)
goto exit_free_device;
@@ -253,19 +250,14 @@ static int max517_probe(struct i2c_client *client,
return 0;
exit_free_device:
- iio_free_device(data->indio_dev);
-exit_free_data:
- kfree(data);
+ iio_free_device(indio_dev);
exit:
return err;
}
static int max517_remove(struct i2c_client *client)
{
- struct max517_data *data = i2c_get_clientdata(client);
-
- iio_free_device(data->indio_dev);
- kfree(data);
+ iio_free_device(i2c_get_clientdata(client));
return 0;
}
generated by cgit v1.1 at 2024-04-27 23:13:19 +0000