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path: root/drivers/staging/iio/adc/ad7793.c
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Diffstat (limited to 'drivers/staging/iio/adc/ad7793.c')
-rw-r--r--drivers/staging/iio/adc/ad7793.c103
1 files changed, 51 insertions, 52 deletions
diff --git a/drivers/staging/iio/adc/ad7793.c b/drivers/staging/iio/adc/ad7793.c
index 84ecde1ad042..b36556fa2957 100644
--- a/drivers/staging/iio/adc/ad7793.c
+++ b/drivers/staging/iio/adc/ad7793.c
@@ -1,7 +1,7 @@
/*
* AD7792/AD7793 SPI ADC driver
*
- * Copyright 2011 Analog Devices Inc.
+ * Copyright 2011-2012 Analog Devices Inc.
*
* Licensed under the GPL-2.
*/
@@ -18,12 +18,12 @@
#include <linux/delay.h>
#include <linux/module.h>
-#include "../iio.h"
-#include "../sysfs.h"
-#include "../buffer.h"
-#include "../ring_sw.h"
-#include "../trigger.h"
-#include "../trigger_consumer.h"
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/kfifo_buf.h>
+#include <linux/iio/trigger.h>
+#include <linux/iio/trigger_consumer.h>
#include "ad7793.h"
@@ -319,31 +319,18 @@ out:
static int ad7793_ring_preenable(struct iio_dev *indio_dev)
{
struct ad7793_state *st = iio_priv(indio_dev);
- struct iio_buffer *ring = indio_dev->buffer;
- size_t d_size;
unsigned channel;
+ int ret;
if (bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
return -EINVAL;
+ ret = iio_sw_buffer_preenable(indio_dev);
+ if (ret < 0)
+ return ret;
channel = find_first_bit(indio_dev->active_scan_mask,
indio_dev->masklength);
- d_size = bitmap_weight(indio_dev->active_scan_mask,
- indio_dev->masklength) *
- indio_dev->channels[0].scan_type.storagebits / 8;
-
- if (ring->scan_timestamp) {
- d_size += sizeof(s64);
-
- if (d_size % sizeof(s64))
- d_size += sizeof(s64) - (d_size % sizeof(s64));
- }
-
- if (indio_dev->buffer->access->set_bytes_per_datum)
- indio_dev->buffer->access->
- set_bytes_per_datum(indio_dev->buffer, d_size);
-
st->mode = (st->mode & ~AD7793_MODE_SEL(-1)) |
AD7793_MODE_SEL(AD7793_MODE_CONT);
st->conf = (st->conf & ~AD7793_CONF_CHAN(-1)) |
@@ -399,7 +386,7 @@ static irqreturn_t ad7793_trigger_handler(int irq, void *p)
indio_dev->channels[0].scan_type.realbits/8);
/* Guaranteed to be aligned with 8 byte boundary */
- if (ring->scan_timestamp)
+ if (indio_dev->scan_timestamp)
dat64[1] = pf->timestamp;
ring->access->store_to(ring, (u8 *)dat64, pf->timestamp);
@@ -422,7 +409,7 @@ static int ad7793_register_ring_funcs_and_init(struct iio_dev *indio_dev)
{
int ret;
- indio_dev->buffer = iio_sw_rb_allocate(indio_dev);
+ indio_dev->buffer = iio_kfifo_allocate(indio_dev);
if (!indio_dev->buffer) {
ret = -ENOMEM;
goto error_ret;
@@ -435,7 +422,7 @@ static int ad7793_register_ring_funcs_and_init(struct iio_dev *indio_dev)
indio_dev->id);
if (indio_dev->pollfunc == NULL) {
ret = -ENOMEM;
- goto error_deallocate_sw_rb;
+ goto error_deallocate_kfifo;
}
/* Ring buffer functions - here trigger setup related */
@@ -445,8 +432,8 @@ static int ad7793_register_ring_funcs_and_init(struct iio_dev *indio_dev)
indio_dev->modes |= INDIO_BUFFER_TRIGGERED;
return 0;
-error_deallocate_sw_rb:
- iio_sw_rb_free(indio_dev->buffer);
+error_deallocate_kfifo:
+ iio_kfifo_free(indio_dev->buffer);
error_ret:
return ret;
}
@@ -454,7 +441,7 @@ error_ret:
static void ad7793_ring_cleanup(struct iio_dev *indio_dev)
{
iio_dealloc_pollfunc(indio_dev->pollfunc);
- iio_sw_rb_free(indio_dev->buffer);
+ iio_kfifo_free(indio_dev->buffer);
}
/**
@@ -482,7 +469,7 @@ static int ad7793_probe_trigger(struct iio_dev *indio_dev)
struct ad7793_state *st = iio_priv(indio_dev);
int ret;
- st->trig = iio_allocate_trigger("%s-dev%d",
+ st->trig = iio_trigger_alloc("%s-dev%d",
spi_get_device_id(st->spi)->name,
indio_dev->id);
if (st->trig == NULL) {
@@ -516,7 +503,7 @@ static int ad7793_probe_trigger(struct iio_dev *indio_dev)
error_free_irq:
free_irq(st->spi->irq, indio_dev);
error_free_trig:
- iio_free_trigger(st->trig);
+ iio_trigger_free(st->trig);
error_ret:
return ret;
}
@@ -527,7 +514,7 @@ static void ad7793_remove_trigger(struct iio_dev *indio_dev)
iio_trigger_unregister(st->trig);
free_irq(st->spi->irq, indio_dev);
- iio_free_trigger(st->trig);
+ iio_trigger_free(st->trig);
}
static const u16 sample_freq_avail[16] = {0, 470, 242, 123, 62, 50, 39, 33, 19,
@@ -537,7 +524,7 @@ static ssize_t ad7793_read_frequency(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- struct iio_dev *indio_dev = dev_get_drvdata(dev);
+ struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct ad7793_state *st = iio_priv(indio_dev);
return sprintf(buf, "%d\n",
@@ -549,7 +536,7 @@ static ssize_t ad7793_write_frequency(struct device *dev,
const char *buf,
size_t len)
{
- struct iio_dev *indio_dev = dev_get_drvdata(dev);
+ struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct ad7793_state *st = iio_priv(indio_dev);
long lval;
int i, ret;
@@ -591,7 +578,7 @@ static IIO_CONST_ATTR_SAMP_FREQ_AVAIL(
static ssize_t ad7793_show_scale_available(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct iio_dev *indio_dev = dev_get_drvdata(dev);
+ struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct ad7793_state *st = iio_priv(indio_dev);
int i, len = 0;
@@ -630,7 +617,7 @@ static int ad7793_read_raw(struct iio_dev *indio_dev,
bool unipolar = !!(st->conf & AD7793_CONF_UNIPOLAR);
switch (m) {
- case 0:
+ case IIO_CHAN_INFO_RAW:
mutex_lock(&indio_dev->mlock);
if (iio_buffer_enabled(indio_dev))
ret = -EBUSY;
@@ -760,7 +747,8 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
.channel = 0,
.channel2 = 0,
.address = AD7793_CH_AIN1P_AIN1M,
- .info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
+ .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
+ IIO_CHAN_INFO_SCALE_SHARED_BIT,
.scan_index = 0,
.scan_type = IIO_ST('s', 24, 32, 0)
},
@@ -771,7 +759,8 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
.channel = 1,
.channel2 = 1,
.address = AD7793_CH_AIN2P_AIN2M,
- .info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
+ .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
+ IIO_CHAN_INFO_SCALE_SHARED_BIT,
.scan_index = 1,
.scan_type = IIO_ST('s', 24, 32, 0)
},
@@ -782,7 +771,8 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
.channel = 2,
.channel2 = 2,
.address = AD7793_CH_AIN3P_AIN3M,
- .info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
+ .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
+ IIO_CHAN_INFO_SCALE_SHARED_BIT,
.scan_index = 2,
.scan_type = IIO_ST('s', 24, 32, 0)
},
@@ -794,7 +784,8 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
.channel = 2,
.channel2 = 2,
.address = AD7793_CH_AIN1M_AIN1M,
- .info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
+ .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
+ IIO_CHAN_INFO_SCALE_SHARED_BIT,
.scan_index = 2,
.scan_type = IIO_ST('s', 24, 32, 0)
},
@@ -803,7 +794,8 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
.indexed = 1,
.channel = 0,
.address = AD7793_CH_TEMP,
- .info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
+ .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
+ IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
.scan_index = 4,
.scan_type = IIO_ST('s', 24, 32, 0),
},
@@ -813,7 +805,8 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
.indexed = 1,
.channel = 4,
.address = AD7793_CH_AVDD_MONITOR,
- .info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
+ .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
+ IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
.scan_index = 5,
.scan_type = IIO_ST('s', 24, 32, 0),
},
@@ -827,7 +820,8 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
.channel = 0,
.channel2 = 0,
.address = AD7793_CH_AIN1P_AIN1M,
- .info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
+ .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
+ IIO_CHAN_INFO_SCALE_SHARED_BIT,
.scan_index = 0,
.scan_type = IIO_ST('s', 16, 32, 0)
},
@@ -838,7 +832,8 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
.channel = 1,
.channel2 = 1,
.address = AD7793_CH_AIN2P_AIN2M,
- .info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
+ .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
+ IIO_CHAN_INFO_SCALE_SHARED_BIT,
.scan_index = 1,
.scan_type = IIO_ST('s', 16, 32, 0)
},
@@ -849,7 +844,8 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
.channel = 2,
.channel2 = 2,
.address = AD7793_CH_AIN3P_AIN3M,
- .info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
+ .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
+ IIO_CHAN_INFO_SCALE_SHARED_BIT,
.scan_index = 2,
.scan_type = IIO_ST('s', 16, 32, 0)
},
@@ -861,7 +857,8 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
.channel = 2,
.channel2 = 2,
.address = AD7793_CH_AIN1M_AIN1M,
- .info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
+ .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
+ IIO_CHAN_INFO_SCALE_SHARED_BIT,
.scan_index = 2,
.scan_type = IIO_ST('s', 16, 32, 0)
},
@@ -870,7 +867,8 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
.indexed = 1,
.channel = 0,
.address = AD7793_CH_TEMP,
- .info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
+ .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
+ IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
.scan_index = 4,
.scan_type = IIO_ST('s', 16, 32, 0),
},
@@ -880,7 +878,8 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
.indexed = 1,
.channel = 4,
.address = AD7793_CH_AVDD_MONITOR,
- .info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
+ .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
+ IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
.scan_index = 5,
.scan_type = IIO_ST('s', 16, 32, 0),
},
@@ -905,7 +904,7 @@ static int __devinit ad7793_probe(struct spi_device *spi)
return -ENODEV;
}
- indio_dev = iio_allocate_device(sizeof(*st));
+ indio_dev = iio_device_alloc(sizeof(*st));
if (indio_dev == NULL)
return -ENOMEM;
@@ -989,7 +988,7 @@ error_put_reg:
if (!IS_ERR(st->reg))
regulator_put(st->reg);
- iio_free_device(indio_dev);
+ iio_device_free(indio_dev);
return ret;
}
@@ -1009,7 +1008,7 @@ static int ad7793_remove(struct spi_device *spi)
regulator_put(st->reg);
}
- iio_free_device(indio_dev);
+ iio_device_free(indio_dev);
return 0;
}
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