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path: root/drivers/staging/iio/accel/adis16220_core.c
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Diffstat (limited to 'drivers/staging/iio/accel/adis16220_core.c')
-rw-r--r--drivers/staging/iio/accel/adis16220_core.c105
1 files changed, 39 insertions, 66 deletions
diff --git a/drivers/staging/iio/accel/adis16220_core.c b/drivers/staging/iio/accel/adis16220_core.c
index 605a75ea3996..bf9ba07c0383 100644
--- a/drivers/staging/iio/accel/adis16220_core.c
+++ b/drivers/staging/iio/accel/adis16220_core.c
@@ -39,7 +39,7 @@ static int adis16220_spi_write_reg_8(struct device *dev,
{
int ret;
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct adis16220_state *st = iio_dev_get_devdata(indio_dev);
+ struct adis16220_state *st = iio_priv(indio_dev);
mutex_lock(&st->buf_lock);
st->tx[0] = ADIS16220_WRITE_REG(reg_address);
@@ -65,7 +65,7 @@ static int adis16220_spi_write_reg_16(struct device *dev,
int ret;
struct spi_message msg;
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct adis16220_state *st = iio_dev_get_devdata(indio_dev);
+ struct adis16220_state *st = iio_priv(indio_dev);
struct spi_transfer xfers[] = {
{
.tx_buf = st->tx,
@@ -110,7 +110,7 @@ static int adis16220_spi_read_reg_16(struct device *dev,
{
struct spi_message msg;
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct adis16220_state *st = iio_dev_get_devdata(indio_dev);
+ struct adis16220_state *st = iio_priv(indio_dev);
int ret;
struct spi_transfer xfers[] = {
{
@@ -316,10 +316,10 @@ err_ret:
return ret;
}
-static int adis16220_initial_setup(struct adis16220_state *st)
+static int adis16220_initial_setup(struct iio_dev *indio_dev)
{
int ret;
- struct device *dev = &st->indio_dev->dev;
+ struct device *dev = &indio_dev->dev;
/* Do self test */
ret = adis16220_self_test(dev);
@@ -341,19 +341,17 @@ static int adis16220_initial_setup(struct adis16220_state *st)
}
}
- printk(KERN_INFO DRIVER_NAME ": at CS%d (irq %d)\n",
- st->us->chip_select, st->us->irq);
-
err_ret:
return ret;
}
-static ssize_t adis16220_capture_buffer_read(struct adis16220_state *st,
+static ssize_t adis16220_capture_buffer_read(struct iio_dev *indio_dev,
char *buf,
loff_t off,
size_t count,
int addr)
{
+ struct adis16220_state *st = iio_priv(indio_dev);
struct spi_message msg;
struct spi_transfer xfers[] = {
{
@@ -383,7 +381,7 @@ static ssize_t adis16220_capture_buffer_read(struct adis16220_state *st,
count = ADIS16220_CAPTURE_SIZE - off;
/* write the begin position of capture buffer */
- ret = adis16220_spi_write_reg_16(&st->indio_dev->dev,
+ ret = adis16220_spi_write_reg_16(&indio_dev->dev,
ADIS16220_CAPT_PNTR,
off > 1);
if (ret)
@@ -422,9 +420,8 @@ static ssize_t adis16220_accel_bin_read(struct file *filp, struct kobject *kobj,
{
struct device *dev = container_of(kobj, struct device, kobj);
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct adis16220_state *st = iio_dev_get_devdata(indio_dev);
- return adis16220_capture_buffer_read(st, buf,
+ return adis16220_capture_buffer_read(indio_dev, buf,
off, count,
ADIS16220_CAPT_BUFA);
}
@@ -445,9 +442,8 @@ static ssize_t adis16220_adc1_bin_read(struct file *filp, struct kobject *kobj,
{
struct device *dev = container_of(kobj, struct device, kobj);
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct adis16220_state *st = iio_dev_get_devdata(indio_dev);
- return adis16220_capture_buffer_read(st, buf,
+ return adis16220_capture_buffer_read(indio_dev, buf,
off, count,
ADIS16220_CAPT_BUF1);
}
@@ -468,9 +464,8 @@ static ssize_t adis16220_adc2_bin_read(struct file *filp, struct kobject *kobj,
{
struct device *dev = container_of(kobj, struct device, kobj);
struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct adis16220_state *st = iio_dev_get_devdata(indio_dev);
- return adis16220_capture_buffer_read(st, buf,
+ return adis16220_capture_buffer_read(indio_dev, buf,
off, count,
ADIS16220_CAPT_BUF2);
}
@@ -551,98 +546,76 @@ static const struct iio_info adis16220_info = {
static int __devinit adis16220_probe(struct spi_device *spi)
{
int ret, regdone = 0;
- struct adis16220_state *st = kzalloc(sizeof *st, GFP_KERNEL);
- if (!st) {
- ret = -ENOMEM;
+ struct adis16220_state *st;
+ struct iio_dev *indio_dev;
+
+ /* setup the industrialio driver allocated elements */
+ indio_dev = iio_allocate_device(sizeof(*st));
+ if (indio_dev == NULL) {
+ ret = -ENOMEM;
goto error_ret;
}
+
+ st = iio_priv(indio_dev);
/* this is only used for removal purposes */
- spi_set_drvdata(spi, st);
+ spi_set_drvdata(spi, indio_dev);
- /* Allocate the comms buffers */
- st->rx = kzalloc(sizeof(*st->rx)*ADIS16220_MAX_RX, GFP_KERNEL);
- if (st->rx == NULL) {
- ret = -ENOMEM;
- goto error_free_st;
- }
- st->tx = kzalloc(sizeof(*st->tx)*ADIS16220_MAX_TX, GFP_KERNEL);
- if (st->tx == NULL) {
- ret = -ENOMEM;
- goto error_free_rx;
- }
st->us = spi;
mutex_init(&st->buf_lock);
- /* setup the industrialio driver allocated elements */
- st->indio_dev = iio_allocate_device(0);
- if (st->indio_dev == NULL) {
- ret = -ENOMEM;
- goto error_free_tx;
- }
- st->indio_dev->name = spi->dev.driver->name;
- st->indio_dev->dev.parent = &spi->dev;
- st->indio_dev->info = &adis16220_info;
- st->indio_dev->dev_data = (void *)(st);
- st->indio_dev->modes = INDIO_DIRECT_MODE;
+ indio_dev->name = spi->dev.driver->name;
+ indio_dev->dev.parent = &spi->dev;
+ indio_dev->info = &adis16220_info;
+ indio_dev->modes = INDIO_DIRECT_MODE;
- ret = iio_device_register(st->indio_dev);
+ ret = iio_device_register(indio_dev);
if (ret)
goto error_free_dev;
regdone = 1;
- ret = sysfs_create_bin_file(&st->indio_dev->dev.kobj, &accel_bin);
+ ret = sysfs_create_bin_file(&indio_dev->dev.kobj, &accel_bin);
if (ret)
goto error_free_dev;
- ret = sysfs_create_bin_file(&st->indio_dev->dev.kobj, &adc1_bin);
+ ret = sysfs_create_bin_file(&indio_dev->dev.kobj, &adc1_bin);
if (ret)
goto error_rm_accel_bin;
- ret = sysfs_create_bin_file(&st->indio_dev->dev.kobj, &adc2_bin);
+ ret = sysfs_create_bin_file(&indio_dev->dev.kobj, &adc2_bin);
if (ret)
goto error_rm_adc1_bin;
/* Get the device into a sane initial state */
- ret = adis16220_initial_setup(st);
+ ret = adis16220_initial_setup(indio_dev);
if (ret)
goto error_rm_adc2_bin;
return 0;
error_rm_adc2_bin:
- sysfs_remove_bin_file(&st->indio_dev->dev.kobj, &adc2_bin);
+ sysfs_remove_bin_file(&indio_dev->dev.kobj, &adc2_bin);
error_rm_adc1_bin:
- sysfs_remove_bin_file(&st->indio_dev->dev.kobj, &adc1_bin);
+ sysfs_remove_bin_file(&indio_dev->dev.kobj, &adc1_bin);
error_rm_accel_bin:
- sysfs_remove_bin_file(&st->indio_dev->dev.kobj, &accel_bin);
+ sysfs_remove_bin_file(&indio_dev->dev.kobj, &accel_bin);
error_free_dev:
if (regdone)
- iio_device_unregister(st->indio_dev);
+ iio_device_unregister(indio_dev);
else
- iio_free_device(st->indio_dev);
-error_free_tx:
- kfree(st->tx);
-error_free_rx:
- kfree(st->rx);
-error_free_st:
- kfree(st);
+ iio_free_device(indio_dev);
error_ret:
return ret;
}
static int adis16220_remove(struct spi_device *spi)
{
- struct adis16220_state *st = spi_get_drvdata(spi);
- struct iio_dev *indio_dev = st->indio_dev;
+ struct iio_dev *indio_dev = spi_get_drvdata(spi);
flush_scheduled_work();
- sysfs_remove_bin_file(&st->indio_dev->dev.kobj, &adc2_bin);
- sysfs_remove_bin_file(&st->indio_dev->dev.kobj, &adc1_bin);
- sysfs_remove_bin_file(&st->indio_dev->dev.kobj, &accel_bin);
+ sysfs_remove_bin_file(&indio_dev->dev.kobj, &adc2_bin);
+ sysfs_remove_bin_file(&indio_dev->dev.kobj, &adc1_bin);
+ sysfs_remove_bin_file(&indio_dev->dev.kobj, &accel_bin);
iio_device_unregister(indio_dev);
- kfree(st->tx);
- kfree(st->rx);
- kfree(st);
return 0;
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-27 21:20:42 +0000