Release 4.8 drivers/iio/buffer/industrialio-buffer-cb.c
/* The industrial I/O callback buffer
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/export.h>
#include <linux/iio/buffer.h>
#include <linux/iio/consumer.h>
struct iio_cb_buffer {
struct iio_buffer buffer;
int (*cb)(const void *data, void *private);
void *private;
struct iio_channel *channels;
};
static struct iio_cb_buffer *buffer_to_cb_buffer(struct iio_buffer *buffer)
{
return container_of(buffer, struct iio_cb_buffer, buffer);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| lars-peter clausen | lars-peter clausen | 24 | 100.00% | 1 | 100.00% |
| Total | 24 | 100.00% | 1 | 100.00% |
static int iio_buffer_cb_store_to(struct iio_buffer *buffer, const void *data)
{
struct iio_cb_buffer *cb_buff = buffer_to_cb_buffer(buffer);
return cb_buff->cb(data, cb_buff->private);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jonathan cameron | jonathan cameron | 35 | 92.11% | 1 | 33.33% |
| lars-peter clausen | lars-peter clausen | 3 | 7.89% | 2 | 66.67% |
| Total | 38 | 100.00% | 3 | 100.00% |
static void iio_buffer_cb_release(struct iio_buffer *buffer)
{
struct iio_cb_buffer *cb_buff = buffer_to_cb_buffer(buffer);
kfree(cb_buff->buffer.scan_mask);
kfree(cb_buff);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| lars-peter clausen | lars-peter clausen | 35 | 100.00% | 1 | 100.00% |
| Total | 35 | 100.00% | 1 | 100.00% |
static const struct iio_buffer_access_funcs iio_cb_access = {
.store_to = &iio_buffer_cb_store_to,
.release = &iio_buffer_cb_release,
.modes = INDIO_BUFFER_SOFTWARE | INDIO_BUFFER_TRIGGERED,
};
struct iio_cb_buffer *iio_channel_get_all_cb(struct device *dev,
int (*cb)(const void *data,
void *private),
void *private)
{
int ret;
struct iio_cb_buffer *cb_buff;
struct iio_dev *indio_dev;
struct iio_channel *chan;
cb_buff = kzalloc(sizeof(*cb_buff), GFP_KERNEL);
if (cb_buff == NULL)
return ERR_PTR(-ENOMEM);
iio_buffer_init(&cb_buff->buffer);
cb_buff->private = private;
cb_buff->cb = cb;
cb_buff->buffer.access = &iio_cb_access;
INIT_LIST_HEAD(&cb_buff->buffer.demux_list);
cb_buff->channels = iio_channel_get_all(dev);
if (IS_ERR(cb_buff->channels)) {
ret = PTR_ERR(cb_buff->channels);
goto error_free_cb_buff;
}
indio_dev = cb_buff->channels[0].indio_dev;
cb_buff->buffer.scan_mask
= kcalloc(BITS_TO_LONGS(indio_dev->masklength), sizeof(long),
GFP_KERNEL);
if (cb_buff->buffer.scan_mask == NULL) {
ret = -ENOMEM;
goto error_release_channels;
}
chan = &cb_buff->channels[0];
while (chan->indio_dev) {
if (chan->indio_dev != indio_dev) {
ret = -EINVAL;
goto error_free_scan_mask;
}
set_bit(chan->channel->scan_index,
cb_buff->buffer.scan_mask);
chan++;
}
return cb_buff;
error_free_scan_mask:
kfree(cb_buff->buffer.scan_mask);
error_release_channels:
iio_channel_release_all(cb_buff->channels);
error_free_cb_buff:
kfree(cb_buff);
return ERR_PTR(ret);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jonathan cameron | jonathan cameron | 272 | 93.47% | 2 | 33.33% |
| lars-peter clausen | lars-peter clausen | 10 | 3.44% | 2 | 33.33% |
| hartmut knaack | hartmut knaack | 5 | 1.72% | 1 | 16.67% |
| guenter roeck | guenter roeck | 4 | 1.37% | 1 | 16.67% |
| Total | 291 | 100.00% | 6 | 100.00% |
EXPORT_SYMBOL_GPL(iio_channel_get_all_cb);
int iio_channel_start_all_cb(struct iio_cb_buffer *cb_buff)
{
return iio_update_buffers(cb_buff->channels[0].indio_dev,
&cb_buff->buffer,
NULL);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jonathan cameron | jonathan cameron | 30 | 100.00% | 1 | 100.00% |
| Total | 30 | 100.00% | 1 | 100.00% |
EXPORT_SYMBOL_GPL(iio_channel_start_all_cb);
void iio_channel_stop_all_cb(struct iio_cb_buffer *cb_buff)
{
iio_update_buffers(cb_buff->channels[0].indio_dev,
NULL,
&cb_buff->buffer);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jonathan cameron | jonathan cameron | 29 | 100.00% | 1 | 100.00% |
| Total | 29 | 100.00% | 1 | 100.00% |
EXPORT_SYMBOL_GPL(iio_channel_stop_all_cb);
void iio_channel_release_all_cb(struct iio_cb_buffer *cb_buff)
{
iio_channel_release_all(cb_buff->channels);
iio_buffer_put(&cb_buff->buffer);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jonathan cameron | jonathan cameron | 21 | 84.00% | 1 | 50.00% |
| lars-peter clausen | lars-peter clausen | 4 | 16.00% | 1 | 50.00% |
| Total | 25 | 100.00% | 2 | 100.00% |
EXPORT_SYMBOL_GPL(iio_channel_release_all_cb);
struct iio_channel
*iio_channel_cb_get_channels(const struct iio_cb_buffer *cb_buffer)
{
return cb_buffer->channels;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jonathan cameron | jonathan cameron | 18 | 100.00% | 1 | 100.00% |
| Total | 18 | 100.00% | 1 | 100.00% |
EXPORT_SYMBOL_GPL(iio_channel_cb_get_channels);
MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>");
MODULE_DESCRIPTION("Industrial I/O callback buffer");
MODULE_LICENSE("GPL");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jonathan cameron | jonathan cameron | 493 | 80.42% | 2 | 20.00% |
| lars-peter clausen | lars-peter clausen | 111 | 18.11% | 6 | 60.00% |
| hartmut knaack | hartmut knaack | 5 | 0.82% | 1 | 10.00% |
| guenter roeck | guenter roeck | 4 | 0.65% | 1 | 10.00% |
| Total | 613 | 100.00% | 10 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.