V4L/DVB : Add S5PV210 TV out driver support

drivers/media/video/samsung/tv20/cec.h

+/* linux/drivers/media/video/samsung/tv20/cec.h
+*
+* Copyright (c) 2010 Samsung Electronics Co., Ltd.
+*               http://www.samsung.com/
+*
+* S5PV210 - cec interface header for Samsung TVOut driver
+*
+* 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.
+*/
+
+/* #define CECDEBUG     1 */
+
+#include <linux/platform_device.h>
+
+#define VERSION         "1.0" /* Driver version number */
+#define CEC_MINOR       242   /* Major 10, Minor 242, /dev/cec */
+
+#define CEC_MESSAGE_BROADCAST_MASK      0x0F
+#define CEC_MESSAGE_BROADCAST           0x0F
+
+#define CEC_FILTER_THRESHOLD            0x15
+
+/*
+* @enum cec_state
+* Defines all possible states of CEC software state machine
+*/
+enum cec_state {
+        STATE_RX,
+        STATE_TX,
+        STATE_DONE,
+        STATE_ERROR
+};
+
+/*
+* @struct cec_rx_struct
+* Holds CEC Rx state and data
+*/
+
+struct cec_rx_struct {
+        spinlock_t lock;
+        wait_queue_head_t waitq;
+        atomic_t state;
+        u8 *buffer;
+        unsigned int size;
+};
+
+/*
+* @struct cec_tx_struct
+* Holds CEC Tx state and data
+*/
+
+struct cec_tx_struct {
+        wait_queue_head_t waitq;
+        atomic_t state;
+};
+
+#define CEC_STATUS_TX_RUNNING                   (1<<0)
+#define CEC_STATUS_TX_TRANSFERRING              (1<<1)
+#define CEC_STATUS_TX_DONE                      (1<<2)
+#define CEC_STATUS_TX_ERROR                     (1<<3)
+#define CEC_STATUS_TX_BYTES                     (0xFF<<8)
+#define CEC_STATUS_RX_RUNNING                   (1<<16)
+#define CEC_STATUS_RX_RECEIVING                 (1<<17)
+#define CEC_STATUS_RX_DONE                      (1<<18)
+#define CEC_STATUS_RX_ERROR                     (1<<19)
+#define CEC_STATUS_RX_BCAST                     (1<<20)
+#define CEC_STATUS_RX_BYTES                     (0xFF<<24)
+
+#define CEC_IOC_MAGIC                                   'c'
+
+/*
+* CEC device request code to set logical address.
+*/
+#define CEC_IOC_SETLADDR        _IOW(CEC_IOC_MAGIC, 0, unsigned int)
+
+/* CEC Rx buffer size */
+#define CEC_RX_BUFF_SIZE        16
+/* CEC Tx buffer size */
+#define CEC_TX_BUFF_SIZE        16
+
+extern void tv_cec_set_divider(void);
+extern void tv_cec_enable_rx(void);
+extern void tv_cec_mask_rx_interrupts(void);
+extern void tv_cec_unmask_rx_interrupts(void);
+extern void tv_cec_mask_tx_interrupts(void);
+extern void tv_cec_unmask_tx_interrupts(void);
+extern void tv_cec_set_tx_state(enum cec_state state);
+extern void tv_cec_set_rx_state(enum cec_state state);
+extern void tv_cec_reset(void);
+extern void tv_cec_tx_reset(void);
+extern void tv_cec_rx_reset(void);
+extern void tv_cec_threshold(void);
+extern void tv_cec_copy_packet(char *data, size_t count);
+extern void tv_cec_set_addr(u32 addr);
+extern u32 tv_cec_get_status(void);
+extern void tv_clr_pending_tx(void);
+extern void tv_clr_pending_rx(void);
+extern void tv_cec_get_rx_buf(u32 size, u8 *buffer);
+extern void __init tv_cec_probe(struct platform_device *pdev);
+