merge opensource jb u5

Change-Id: I1aaec157aa196f3448eff8636134fce89a814cf2

1 files changed, 89 insertions, 0 deletions

diff --git a/drivers/media/isdbt/fc8150/fci_ringbuffer.h b/drivers/media/isdbt/fc8150/fci_ringbuffer.h
new file mode 100644
index 0000000..0d1a2cc
--- /dev/null
+++ b/drivers/media/isdbt/fc8150/fci_ringbuffer.h
@@ -0,0 +1,89 @@
+/*****************************************************************************
+ Copyright(c) 2010 FCI Inc. All Rights Reserved
+
+ File name : fci_ringbuffer.h
+
+ Description :
+
+ History :
+ ----------------------------------------------------------------------
+ 2010/11/25	aslan.cho	initial
+*******************************************************************************/
+
+#ifndef __FCI_RINGBUFFER_H__
+#define __FCI_RINGBUFFER_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <linux/spinlock.h>
+#include <linux/wait.h>
+
+struct fci_ringbuffer {
+	u8               *data;
+	ssize_t           size;
+	ssize_t           pread;
+	ssize_t           pwrite;
+	int               error;
+
+	wait_queue_head_t queue;
+	spinlock_t        lock;
+};
+
+#define FCI_RINGBUFFER_PKTHDRSIZE 3
+
+extern void fci_ringbuffer_init(struct fci_ringbuffer *rbuf
+	, void *data, size_t len);
+
+extern int fci_ringbuffer_empty(struct fci_ringbuffer *rbuf);
+
+extern ssize_t fci_ringbuffer_free(struct fci_ringbuffer *rbuf);
+
+extern ssize_t fci_ringbuffer_avail(struct fci_ringbuffer *rbuf);
+
+extern void fci_ringbuffer_reset(struct fci_ringbuffer *rbuf);
+
+extern void fci_ringbuffer_flush(struct fci_ringbuffer *rbuf);
+
+extern void fci_ringbuffer_flush_spinlock_wakeup(struct fci_ringbuffer *rbuf);
+
+#define FCI_RINGBUFFER_PEEK(rbuf, offs)	\
+	((rbuf)->data[((rbuf)->pread+(offs)) % (rbuf)->size])
+
+#define FCI_RINGBUFFER_SKIP(rbuf, num)	\
+	((rbuf)->pread = ((rbuf)->pread+(num)) % (rbuf)->size)
+
+extern ssize_t fci_ringbuffer_read_user(struct fci_ringbuffer *rbuf
+, u8 __user *buf, size_t len);
+
+extern void fci_ringbuffer_read(struct fci_ringbuffer *rbuf
+	, u8 *buf, size_t len);
+
+
+#define FCI_RINGBUFFER_WRITE_BYTE(rbuf, byte)	\
+		{ (rbuf)->data[(rbuf)->pwrite] = (byte); \
+			(rbuf)->pwrite = ((rbuf)->pwrite + 1) % (rbuf)->size; }
+
+extern ssize_t fci_ringbuffer_write(struct fci_ringbuffer *rbuf
+	, const u8 *buf, size_t len);
+
+extern ssize_t fci_ringbuffer_pkt_write(struct fci_ringbuffer *rbuf
+	, u8 *buf, size_t len);
+
+extern ssize_t fci_ringbuffer_pkt_read_user(struct fci_ringbuffer *rbuf
+	, size_t idx, int offset, u8 __user *buf, size_t len);
+
+extern ssize_t fci_ringbuffer_pkt_read(struct fci_ringbuffer *rbuf
+	, size_t idx, int offset, u8 *buf, size_t len);
+
+extern void fci_ringbuffer_pkt_dispose(struct fci_ringbuffer *rbuf, size_t idx);
+
+extern ssize_t fci_ringbuffer_pkt_next(struct fci_ringbuffer *rbuf
+	, size_t idx, size_t *pktlen);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif