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-rw-r--r--include/media/lirc_dev.h192
1 files changed, 0 insertions, 192 deletions
diff --git a/include/media/lirc_dev.h b/include/media/lirc_dev.h
deleted file mode 100644
index d9c143d17f70..000000000000
--- a/include/media/lirc_dev.h
+++ /dev/null
@@ -1,192 +0,0 @@
-/*
- * LIRC base driver
- *
- * by Artur Lipowski <alipowski@interia.pl>
- * This code is licensed under GNU GPL
- *
- */
-
-#ifndef _LINUX_LIRC_DEV_H
-#define _LINUX_LIRC_DEV_H
-
-#define BUFLEN 16
-
-#include <linux/slab.h>
-#include <linux/fs.h>
-#include <linux/ioctl.h>
-#include <linux/poll.h>
-#include <linux/kfifo.h>
-#include <media/lirc.h>
-#include <linux/device.h>
-#include <linux/cdev.h>
-
-struct lirc_buffer {
- wait_queue_head_t wait_poll;
- spinlock_t fifo_lock;
- unsigned int chunk_size;
- unsigned int size; /* in chunks */
- /* Using chunks instead of bytes pretends to simplify boundary checking
- * And should allow for some performance fine tunning later */
- struct kfifo fifo;
-};
-
-static inline void lirc_buffer_clear(struct lirc_buffer *buf)
-{
- unsigned long flags;
-
- if (kfifo_initialized(&buf->fifo)) {
- spin_lock_irqsave(&buf->fifo_lock, flags);
- kfifo_reset(&buf->fifo);
- spin_unlock_irqrestore(&buf->fifo_lock, flags);
- } else
- WARN(1, "calling %s on an uninitialized lirc_buffer\n",
- __func__);
-}
-
-static inline int lirc_buffer_init(struct lirc_buffer *buf,
- unsigned int chunk_size,
- unsigned int size)
-{
- int ret;
-
- init_waitqueue_head(&buf->wait_poll);
- spin_lock_init(&buf->fifo_lock);
- buf->chunk_size = chunk_size;
- buf->size = size;
- ret = kfifo_alloc(&buf->fifo, size * chunk_size, GFP_KERNEL);
-
- return ret;
-}
-
-static inline void lirc_buffer_free(struct lirc_buffer *buf)
-{
- if (kfifo_initialized(&buf->fifo)) {
- kfifo_free(&buf->fifo);
- } else
- WARN(1, "calling %s on an uninitialized lirc_buffer\n",
- __func__);
-}
-
-static inline int lirc_buffer_len(struct lirc_buffer *buf)
-{
- int len;
- unsigned long flags;
-
- spin_lock_irqsave(&buf->fifo_lock, flags);
- len = kfifo_len(&buf->fifo);
- spin_unlock_irqrestore(&buf->fifo_lock, flags);
-
- return len;
-}
-
-static inline int lirc_buffer_full(struct lirc_buffer *buf)
-{
- return lirc_buffer_len(buf) == buf->size * buf->chunk_size;
-}
-
-static inline int lirc_buffer_empty(struct lirc_buffer *buf)
-{
- return !lirc_buffer_len(buf);
-}
-
-static inline unsigned int lirc_buffer_read(struct lirc_buffer *buf,
- unsigned char *dest)
-{
- unsigned int ret = 0;
-
- if (lirc_buffer_len(buf) >= buf->chunk_size)
- ret = kfifo_out_locked(&buf->fifo, dest, buf->chunk_size,
- &buf->fifo_lock);
- return ret;
-
-}
-
-static inline unsigned int lirc_buffer_write(struct lirc_buffer *buf,
- unsigned char *orig)
-{
- unsigned int ret;
-
- ret = kfifo_in_locked(&buf->fifo, orig, buf->chunk_size,
- &buf->fifo_lock);
-
- return ret;
-}
-
-/**
- * struct lirc_dev - represents a LIRC device
- *
- * @name: used for logging
- * @minor: the minor device (/dev/lircX) number for the device
- * @code_length: length of a remote control key code expressed in bits
- * @features: lirc compatible hardware features, like LIRC_MODE_RAW,
- * LIRC_CAN\_\*, as defined at include/media/lirc.h.
- * @buffer_size: Number of FIFO buffers with @chunk_size size.
- * Only used if @rbuf is NULL.
- * @chunk_size: Size of each FIFO buffer.
- * Only used if @rbuf is NULL.
- * @data: private per-driver data
- * @buf: if %NULL, lirc_dev will allocate and manage the buffer,
- * otherwise allocated by the caller which will
- * have to write to the buffer by other means, like irq's
- * (see also lirc_serial.c).
- * @buf_internal: whether lirc_dev has allocated the read buffer or not
- * @rdev: &struct rc_dev associated with the device
- * @fops: &struct file_operations for the device
- * @owner: the module owning this struct
- * @attached: if the device is still live
- * @open: open count for the device's chardev
- * @mutex: serialises file_operations calls
- * @dev: &struct device assigned to the device
- * @cdev: &struct cdev assigned to the device
- */
-struct lirc_dev {
- char name[40];
- unsigned int minor;
- __u32 code_length;
- __u32 features;
-
- unsigned int buffer_size; /* in chunks holding one code each */
- unsigned int chunk_size;
- struct lirc_buffer *buf;
- bool buf_internal;
-
- void *data;
- struct rc_dev *rdev;
- const struct file_operations *fops;
- struct module *owner;
-
- bool attached;
- int open;
-
- struct mutex mutex; /* protect from simultaneous accesses */
-
- struct device dev;
- struct cdev cdev;
-};
-
-struct lirc_dev *lirc_allocate_device(void);
-
-void lirc_free_device(struct lirc_dev *d);
-
-int lirc_register_device(struct lirc_dev *d);
-
-void lirc_unregister_device(struct lirc_dev *d);
-
-/* Must be called in the open fop before lirc_get_pdata() can be used */
-void lirc_init_pdata(struct inode *inode, struct file *file);
-
-/* Returns the private data stored in the lirc_dev
- * associated with the given device file pointer.
- */
-void *lirc_get_pdata(struct file *file);
-
-/* default file operations
- * used by drivers if they override only some operations
- */
-int lirc_dev_fop_open(struct inode *inode, struct file *file);
-int lirc_dev_fop_close(struct inode *inode, struct file *file);
-__poll_t lirc_dev_fop_poll(struct file *file, poll_table *wait);
-long lirc_dev_fop_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
-ssize_t lirc_dev_fop_read(struct file *file, char __user *buffer, size_t length,
- loff_t *ppos);
-#endif