#ifdef CONFIG_PM_SLEEP
static int bma180_suspend(struct device *dev)
{
- struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+ struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
struct bma180_data *data = iio_priv(indio_dev);
int ret;
static int bma180_resume(struct device *dev)
{
- struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+ struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
struct bma180_data *data = iio_priv(indio_dev);
int ret;
static int at91_adc_probe(struct platform_device *pdev)
{
- unsigned int prsc, mstrclk, ticks, adc_clk, shtim;
+ unsigned int prsc, mstrclk, ticks, adc_clk, adc_clk_khz, shtim;
int ret;
struct iio_dev *idev;
struct at91_adc_state *st;
*/
mstrclk = clk_get_rate(st->clk);
adc_clk = clk_get_rate(st->adc_clk);
+ adc_clk_khz = adc_clk / 1000;
prsc = (mstrclk / (2 * adc_clk)) - 1;
if (!st->startup_time) {
* defined in the electrical characteristics of the board, divided by 8.
* The formula thus is : Startup Time = (ticks + 1) * 8 / ADC Clock
*/
- ticks = round_up((st->startup_time * adc_clk /
- 1000000) - 1, 8) / 8;
+ ticks = round_up((st->startup_time * adc_clk_khz /
+ 1000) - 1, 8) / 8;
/*
* a minimal Sample and Hold Time is necessary for the ADC to guarantee
* the best converted final value between two channels selection
* The formula thus is : Sample and Hold Time = (shtim + 1) / ADCClock
*/
- shtim = round_up((st->sample_hold_time * adc_clk /
- 1000000) - 1, 1);
+ shtim = round_up((st->sample_hold_time * adc_clk_khz /
+ 1000) - 1, 1);
reg = AT91_ADC_PRESCAL_(prsc) & st->registers->mr_prescal_mask;
reg |= AT91_ADC_STARTUP_(ticks) & st->registers->mr_startup_mask;
goto error_ret;
}
+ iio_buffer_init(&cb_buff->buffer);
+
cb_buff->private = private;
cb_buff->cb = cb;
cb_buff->buffer.access = &iio_cb_access;
static int mcp4725_suspend(struct device *dev)
{
- struct iio_dev *indio_dev = dev_to_iio_dev(dev);
- struct mcp4725_data *data = iio_priv(indio_dev);
+ struct mcp4725_data *data = iio_priv(i2c_get_clientdata(
+ to_i2c_client(dev)));
u8 outbuf[2];
outbuf[0] = (data->powerdown_mode + 1) << 4;
outbuf[1] = 0;
data->powerdown = true;
- return i2c_master_send(to_i2c_client(dev), outbuf, 2);
+ return i2c_master_send(data->client, outbuf, 2);
}
static int mcp4725_resume(struct device *dev)
{
- struct iio_dev *indio_dev = dev_to_iio_dev(dev);
- struct mcp4725_data *data = iio_priv(indio_dev);
+ struct mcp4725_data *data = iio_priv(i2c_get_clientdata(
+ to_i2c_client(dev)));
u8 outbuf[2];
/* restore previous DAC value */
outbuf[1] = data->dac_value & 0xff;
data->powerdown = false;
- return i2c_master_send(to_i2c_client(dev), outbuf, 2);
+ return i2c_master_send(data->client, outbuf, 2);
}
#ifdef CONFIG_PM_SLEEP
#define iio_buffer_poll_addr (&iio_buffer_poll)
#define iio_buffer_read_first_n_outer_addr (&iio_buffer_read_first_n_outer)
+void iio_disable_all_buffers(struct iio_dev *indio_dev);
+
#else
#define iio_buffer_poll_addr NULL
#define iio_buffer_read_first_n_outer_addr NULL
+static inline void iio_disable_all_buffers(struct iio_dev *indio_dev) {}
+
#endif
int iio_device_register_eventset(struct iio_dev *indio_dev);
return bytes;
}
+void iio_disable_all_buffers(struct iio_dev *indio_dev)
+{
+ struct iio_buffer *buffer, *_buffer;
+
+ if (list_empty(&indio_dev->buffer_list))
+ return;
+
+ if (indio_dev->setup_ops->predisable)
+ indio_dev->setup_ops->predisable(indio_dev);
+
+ list_for_each_entry_safe(buffer, _buffer,
+ &indio_dev->buffer_list, buffer_list)
+ list_del_init(&buffer->buffer_list);
+
+ indio_dev->currentmode = INDIO_DIRECT_MODE;
+ if (indio_dev->setup_ops->postdisable)
+ indio_dev->setup_ops->postdisable(indio_dev);
+}
+
int iio_update_buffers(struct iio_dev *indio_dev,
struct iio_buffer *insert_buffer,
struct iio_buffer *remove_buffer)
* Note can only occur when adding a buffer.
*/
list_del(&insert_buffer->buffer_list);
- indio_dev->active_scan_mask = old_mask;
- success = -EINVAL;
+ if (old_mask) {
+ indio_dev->active_scan_mask = old_mask;
+ success = -EINVAL;
+ }
+ else {
+ kfree(compound_mask);
+ ret = -EINVAL;
+ goto error_ret;
+ }
}
} else {
indio_dev->active_scan_mask = compound_mask;
static void iio_dev_release(struct device *device)
{
struct iio_dev *indio_dev = dev_to_iio_dev(device);
- if (indio_dev->chrdev.dev)
- cdev_del(&indio_dev->chrdev);
if (indio_dev->modes & INDIO_BUFFER_TRIGGERED)
iio_device_unregister_trigger_consumer(indio_dev);
iio_device_unregister_eventset(indio_dev);
if (test_and_set_bit(IIO_BUSY_BIT_POS, &indio_dev->flags))
return -EBUSY;
+ iio_device_get(indio_dev);
+
filp->private_data = indio_dev;
return 0;
struct iio_dev *indio_dev = container_of(inode->i_cdev,
struct iio_dev, chrdev);
clear_bit(IIO_BUSY_BIT_POS, &indio_dev->flags);
+ iio_device_put(indio_dev);
+
return 0;
}
indio_dev->setup_ops == NULL)
indio_dev->setup_ops = &noop_ring_setup_ops;
- ret = device_add(&indio_dev->dev);
- if (ret < 0)
- goto error_unreg_eventset;
cdev_init(&indio_dev->chrdev, &iio_buffer_fileops);
indio_dev->chrdev.owner = indio_dev->info->driver_module;
+ indio_dev->chrdev.kobj.parent = &indio_dev->dev.kobj;
ret = cdev_add(&indio_dev->chrdev, indio_dev->dev.devt, 1);
if (ret < 0)
- goto error_del_device;
- return 0;
+ goto error_unreg_eventset;
-error_del_device:
- device_del(&indio_dev->dev);
+ ret = device_add(&indio_dev->dev);
+ if (ret < 0)
+ goto error_cdev_del;
+
+ return 0;
+error_cdev_del:
+ cdev_del(&indio_dev->chrdev);
error_unreg_eventset:
iio_device_unregister_eventset(indio_dev);
error_free_sysfs:
void iio_device_unregister(struct iio_dev *indio_dev)
{
mutex_lock(&indio_dev->info_exist_lock);
+
+ device_del(&indio_dev->dev);
+
+ if (indio_dev->chrdev.dev)
+ cdev_del(&indio_dev->chrdev);
+
+ iio_disable_all_buffers(indio_dev);
+
indio_dev->info = NULL;
mutex_unlock(&indio_dev->info_exist_lock);
- device_del(&indio_dev->dev);
}
EXPORT_SYMBOL(iio_device_unregister);
subsys_initcall(iio_init);
static unsigned int iio_event_poll(struct file *filep,
struct poll_table_struct *wait)
{
- struct iio_event_interface *ev_int = filep->private_data;
+ struct iio_dev *indio_dev = filep->private_data;
+ struct iio_event_interface *ev_int = indio_dev->event_interface;
unsigned int events = 0;
poll_wait(filep, &ev_int->wait, wait);
size_t count,
loff_t *f_ps)
{
- struct iio_event_interface *ev_int = filep->private_data;
+ struct iio_dev *indio_dev = filep->private_data;
+ struct iio_event_interface *ev_int = indio_dev->event_interface;
unsigned int copied;
int ret;
static int iio_event_chrdev_release(struct inode *inode, struct file *filep)
{
- struct iio_event_interface *ev_int = filep->private_data;
+ struct iio_dev *indio_dev = filep->private_data;
+ struct iio_event_interface *ev_int = indio_dev->event_interface;
spin_lock_irq(&ev_int->wait.lock);
__clear_bit(IIO_BUSY_BIT_POS, &ev_int->flags);
kfifo_reset_out(&ev_int->det_events);
spin_unlock_irq(&ev_int->wait.lock);
+ iio_device_put(indio_dev);
+
return 0;
}
return -EBUSY;
}
spin_unlock_irq(&ev_int->wait.lock);
- fd = anon_inode_getfd("iio:event",
- &iio_event_chrdev_fileops, ev_int, O_RDONLY);
+ iio_device_get(indio_dev);
+
+ fd = anon_inode_getfd("iio:event", &iio_event_chrdev_fileops,
+ indio_dev, O_RDONLY);
if (fd < 0) {
spin_lock_irq(&ev_int->wait.lock);
__clear_bit(IIO_BUSY_BIT_POS, &ev_int->flags);
spin_unlock_irq(&ev_int->wait.lock);
+ iio_device_put(indio_dev);
}
return fd;
}
goto error_ret;
}
if (chan->modified)
- mask = IIO_MOD_EVENT_CODE(chan->type, 0, chan->channel,
+ mask = IIO_MOD_EVENT_CODE(chan->type, 0, chan->channel2,
i/IIO_EV_DIR_MAX,
i%IIO_EV_DIR_MAX);
else if (chan->differential)
#ifdef CONFIG_PM_SLEEP
static int tmp006_suspend(struct device *dev)
{
- return tmp006_powerdown(iio_priv(dev_to_iio_dev(dev)));
+ struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+ return tmp006_powerdown(iio_priv(indio_dev));
}
static int tmp006_resume(struct device *dev)
{
- struct tmp006_data *data = iio_priv(dev_to_iio_dev(dev));
+ struct tmp006_data *data = iio_priv(i2c_get_clientdata(
+ to_i2c_client(dev)));
return i2c_smbus_write_word_swapped(data->client, TMP006_CONFIG,
data->config | TMP006_CONFIG_MOD_MASK);
}
config IIO_SIMPLE_DUMMY_BUFFER
boolean "Buffered capture support"
- depends on IIO_KFIFO_BUF
+ select IIO_KFIFO_BUF
help
Add buffered data capture to the simple dummy driver.
mutex_init(&chip->lock);
chip->lux_scale = 1;
+ chip->lux_uscale = 0;
chip->range = 1000;
chip->adc_bit = 16;
chip->suspended = false;
if (result < 0)
return -EINVAL;
- *val = result;
+ *val = sign_extend32(result, 15);
return IIO_VAL_INT;
}
if (ret)
iio_device_free(indio_dev);
- return 0;
+ return ret;
}
static int ade7854_spi_remove(struct spi_device *spi)