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/* linux/drivers/media/video/samsung/tvout/hw_if/hw_if.h
*
* Copyright (c) 2010 Samsung Electronics
* http://www.samsung.com/
*
* Header file for interface of Samsung TVOUT-related hardware
*
* 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.
*/
#ifndef _SAMSUNG_TVOUT_CEC_H_
#define _SAMSUNG_TVOUT_CEC_H_ __FILE__
/*****************************************************************************
* This file includes declarations for external functions of
* Samsung TVOUT-related hardware. So only external functions
* to be used by higher layer must exist in this file.
*
* Higher layer must use only the declarations included in this file.
****************************************************************************/
#define to_tvout_plat(d) (to_platform_device(d)->dev.platform_data)
#ifndef tvout_dbg
#ifdef CONFIG_TV_DEBUG
#define tvout_dbg(fmt, ...) \
printk(KERN_INFO "[%s] %s(): " fmt, \
DRV_NAME, __func__, ##__VA_ARGS__)
#else
#define tvout_dbg(fmt, ...)
#endif
#endif
enum s5p_tvout_endian {
TVOUT_LITTLE_ENDIAN = 0,
TVOUT_BIG_ENDIAN = 1
};
enum cec_state {
STATE_RX,
STATE_TX,
STATE_DONE,
STATE_ERROR
};
struct cec_rx_struct {
spinlock_t lock;
wait_queue_head_t waitq;
atomic_t state;
u8 *buffer;
unsigned int size;
};
struct cec_tx_struct {
wait_queue_head_t waitq;
atomic_t state;
};
extern struct cec_rx_struct cec_rx_struct;
extern struct cec_tx_struct cec_tx_struct;
void s5p_cec_set_divider(void);
void s5p_cec_enable_rx(void);
void s5p_cec_mask_rx_interrupts(void);
void s5p_cec_unmask_rx_interrupts(void);
void s5p_cec_mask_tx_interrupts(void);
void s5p_cec_unmask_tx_interrupts(void);
void s5p_cec_reset(void);
void s5p_cec_tx_reset(void);
void s5p_cec_rx_reset(void);
void s5p_cec_threshold(void);
void s5p_cec_set_tx_state(enum cec_state state);
void s5p_cec_set_rx_state(enum cec_state state);
void s5p_cec_copy_packet(char *data, size_t count);
void s5p_cec_set_addr(u32 addr);
u32 s5p_cec_get_status(void);
void s5p_clr_pending_tx(void);
void s5p_clr_pending_rx(void);
void s5p_cec_get_rx_buf(u32 size, u8 *buffer);
int __init s5p_cec_mem_probe(struct platform_device *pdev);
#endif /* _SAMSUNG_TVOUT_CEC_H_ */
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