[linux.git] / include / media / cec.h

/*
 * cec - HDMI Consumer Electronics Control support header
 *
 * Copyright 2016 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
 *
 * This program is free software; you may redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#ifndef _MEDIA_CEC_H
#define _MEDIA_CEC_H

#include <linux/poll.h>
#include <linux/fs.h>
#include <linux/debugfs.h>
#include <linux/device.h>
#include <linux/cdev.h>
#include <linux/kthread.h>
#include <linux/timer.h>
#include <linux/cec-funcs.h>
#include <media/rc-core.h>
#include <media/cec-notifier.h>

/**
 * struct cec_devnode - cec device node
 * @dev:	cec device
 * @cdev:	cec character device
 * @minor:	device node minor number
 * @registered:	the device was correctly registered
 * @unregistered: the device was unregistered
 * @fhs_lock:	lock to control access to the filehandle list
 * @fhs:	the list of open filehandles (cec_fh)
 *
 * This structure represents a cec-related device node.
 *
 * The @parent is a physical device. It must be set by core or device drivers
 * before registering the node.
 */
struct cec_devnode {
	/* sysfs */
	struct device dev;
	struct cdev cdev;

	/* device info */
	int minor;
	bool registered;
	bool unregistered;
	struct list_head fhs;
	struct mutex lock;
};

struct cec_adapter;
struct cec_data;

struct cec_data {
	struct list_head list;
	struct list_head xfer_list;
	struct cec_adapter *adap;
	struct cec_msg msg;
	struct cec_fh *fh;
	struct delayed_work work;
	struct completion c;
	u8 attempts;
	bool new_initiator;
	bool blocking;
	bool completed;
};

struct cec_msg_entry {
	struct list_head	list;
	struct cec_msg		msg;
};

#define CEC_NUM_EVENTS		CEC_EVENT_LOST_MSGS

struct cec_fh {
	struct list_head	list;
	struct list_head	xfer_list;
	struct cec_adapter	*adap;
	u8			mode_initiator;
	u8			mode_follower;

	/* Events */
	wait_queue_head_t	wait;
	unsigned int		pending_events;
	struct cec_event	events[CEC_NUM_EVENTS];
	struct mutex		lock;
	struct list_head	msgs; /* queued messages */
	unsigned int		queued_msgs;
};

#define CEC_SIGNAL_FREE_TIME_RETRY		3
#define CEC_SIGNAL_FREE_TIME_NEW_INITIATOR	5
#define CEC_SIGNAL_FREE_TIME_NEXT_XFER		7

/* The nominal data bit period is 2.4 ms */
#define CEC_FREE_TIME_TO_USEC(ft)		((ft) * 2400)

struct cec_adap_ops {
	/* Low-level callbacks */
	int (*adap_enable)(struct cec_adapter *adap, bool enable);
	int (*adap_monitor_all_enable)(struct cec_adapter *adap, bool enable);
	int (*adap_log_addr)(struct cec_adapter *adap, u8 logical_addr);
	int (*adap_transmit)(struct cec_adapter *adap, u8 attempts,
			     u32 signal_free_time, struct cec_msg *msg);
	void (*adap_status)(struct cec_adapter *adap, struct seq_file *file);

	/* High-level CEC message callback */
	int (*received)(struct cec_adapter *adap, struct cec_msg *msg);
};

/*
 * The minimum message length you can receive (excepting poll messages) is 2.
 * With a transfer rate of at most 36 bytes per second this makes 18 messages
 * per second worst case.
 *
 * We queue at most 3 seconds worth of received messages. The CEC specification
 * requires that messages are replied to within a second, so 3 seconds should
 * give more than enough margin. Since most messages are actually more than 2
 * bytes, this is in practice a lot more than 3 seconds.
 */
#define CEC_MAX_MSG_RX_QUEUE_SZ		(18 * 3)

/*
 * The transmit queue is limited to 1 second worth of messages (worst case).
 * Messages can be transmitted by userspace and kernel space. But for both it
 * makes no sense to have a lot of messages queued up. One second seems
 * reasonable.
 */
#define CEC_MAX_MSG_TX_QUEUE_SZ		(18 * 1)

struct cec_adapter {
	struct module *owner;
	char name[32];
	struct cec_devnode devnode;
	struct mutex lock;
	struct rc_dev *rc;

	struct list_head transmit_queue;
	unsigned int transmit_queue_sz;
	struct list_head wait_queue;
	struct cec_data *transmitting;

	struct task_struct *kthread_config;
	struct completion config_completion;

	struct task_struct *kthread;
	wait_queue_head_t kthread_waitq;
	wait_queue_head_t waitq;

	const struct cec_adap_ops *ops;
	void *priv;
	u32 capabilities;
	u8 available_log_addrs;

	u16 phys_addr;
	bool is_configuring;
	bool is_configured;
	u32 monitor_all_cnt;
	u32 follower_cnt;
	struct cec_fh *cec_follower;
	struct cec_fh *cec_initiator;
	bool passthrough;
	struct cec_log_addrs log_addrs;

#ifdef CONFIG_MEDIA_CEC_NOTIFIER
	struct cec_notifier *notifier;
#endif

	struct dentry *cec_dir;
	struct dentry *status_file;

	u16 phys_addrs[15];
	u32 sequence;

	char input_name[32];
	char input_phys[32];
	char input_drv[32];
};

static inline void *cec_get_drvdata(const struct cec_adapter *adap)
{
	return adap->priv;
}

static inline bool cec_has_log_addr(const struct cec_adapter *adap, u8 log_addr)
{
	return adap->log_addrs.log_addr_mask & (1 << log_addr);
}

static inline bool cec_is_sink(const struct cec_adapter *adap)
{
	return adap->phys_addr == 0;
}

#define cec_phys_addr_exp(pa) \
	((pa) >> 12), ((pa) >> 8) & 0xf, ((pa) >> 4) & 0xf, (pa) & 0xf

#if IS_ENABLED(CONFIG_CEC_CORE)
struct cec_adapter *cec_allocate_adapter(const struct cec_adap_ops *ops,
		void *priv, const char *name, u32 caps, u8 available_las);
int cec_register_adapter(struct cec_adapter *adap, struct device *parent);
void cec_unregister_adapter(struct cec_adapter *adap);
void cec_delete_adapter(struct cec_adapter *adap);

int cec_s_log_addrs(struct cec_adapter *adap, struct cec_log_addrs *log_addrs,
		    bool block);
void cec_s_phys_addr(struct cec_adapter *adap, u16 phys_addr,
		     bool block);
int cec_transmit_msg(struct cec_adapter *adap, struct cec_msg *msg,
		     bool block);

/* Called by the adapter */
void cec_transmit_done(struct cec_adapter *adap, u8 status, u8 arb_lost_cnt,
		       u8 nack_cnt, u8 low_drive_cnt, u8 error_cnt);
void cec_received_msg(struct cec_adapter *adap, struct cec_msg *msg);

/**
 * cec_get_edid_phys_addr() - find and return the physical address
 *
 * @edid:	pointer to the EDID data
 * @size:	size in bytes of the EDID data
 * @offset:	If not %NULL then the location of the physical address
 *		bytes in the EDID will be returned here. This is set to 0
 *		if there is no physical address found.
 *
 * Return: the physical address or CEC_PHYS_ADDR_INVALID if there is none.
 */
u16 cec_get_edid_phys_addr(const u8 *edid, unsigned int size,
			   unsigned int *offset);

/**
 * cec_set_edid_phys_addr() - find and set the physical address
 *
 * @edid:	pointer to the EDID data
 * @size:	size in bytes of the EDID data
 * @phys_addr:	the new physical address
 *
 * This function finds the location of the physical address in the EDID
 * and fills in the given physical address and updates the checksum
 * at the end of the EDID block. It does nothing if the EDID doesn't
 * contain a physical address.
 */
void cec_set_edid_phys_addr(u8 *edid, unsigned int size, u16 phys_addr);

/**
 * cec_phys_addr_for_input() - calculate the PA for an input
 *
 * @phys_addr:	the physical address of the parent
 * @input:	the number of the input port, must be between 1 and 15
 *
 * This function calculates a new physical address based on the input
 * port number. For example:
 *
 * PA = 0.0.0.0 and input = 2 becomes 2.0.0.0
 *
 * PA = 3.0.0.0 and input = 1 becomes 3.1.0.0
 *
 * PA = 3.2.1.0 and input = 5 becomes 3.2.1.5
 *
 * PA = 3.2.1.3 and input = 5 becomes f.f.f.f since it maxed out the depth.
 *
 * Return: the new physical address or CEC_PHYS_ADDR_INVALID.
 */
u16 cec_phys_addr_for_input(u16 phys_addr, u8 input);

/**
 * cec_phys_addr_validate() - validate a physical address from an EDID
 *
 * @phys_addr:	the physical address to validate
 * @parent:	if not %NULL, then this is filled with the parents PA.
 * @port:	if not %NULL, then this is filled with the input port.
 *
 * This validates a physical address as read from an EDID. If the
 * PA is invalid (such as 1.0.1.0 since '0' is only allowed at the end),
 * then it will return -EINVAL.
 *
 * The parent PA is passed into %parent and the input port is passed into
 * %port. For example:
 *
 * PA = 0.0.0.0: has parent 0.0.0.0 and input port 0.
 *
 * PA = 1.0.0.0: has parent 0.0.0.0 and input port 1.
 *
 * PA = 3.2.0.0: has parent 3.0.0.0 and input port 2.
 *
 * PA = f.f.f.f: has parent f.f.f.f and input port 0.
 *
 * Return: 0 if the PA is valid, -EINVAL if not.
 */
int cec_phys_addr_validate(u16 phys_addr, u16 *parent, u16 *port);

#ifdef CONFIG_MEDIA_CEC_NOTIFIER
void cec_register_cec_notifier(struct cec_adapter *adap,
			       struct cec_notifier *notifier);
#endif

#else

static inline int cec_register_adapter(struct cec_adapter *adap,
				       struct device *parent)
{
	return 0;
}

static inline void cec_unregister_adapter(struct cec_adapter *adap)
{
}

static inline void cec_delete_adapter(struct cec_adapter *adap)
{
}

static inline void cec_s_phys_addr(struct cec_adapter *adap, u16 phys_addr,
				   bool block)
{
}

static inline u16 cec_get_edid_phys_addr(const u8 *edid, unsigned int size,
					 unsigned int *offset)
{
	if (offset)
		*offset = 0;
	return CEC_PHYS_ADDR_INVALID;
}

static inline void cec_set_edid_phys_addr(u8 *edid, unsigned int size,
					  u16 phys_addr)
{
}

static inline u16 cec_phys_addr_for_input(u16 phys_addr, u8 input)
{
	return CEC_PHYS_ADDR_INVALID;
}

static inline int cec_phys_addr_validate(u16 phys_addr, u16 *parent, u16 *port)
{
	return 0;
}

#endif

#endif /* _MEDIA_CEC_H */
Commit	Line	Data
a56960e8 HV	1	/*
	2	* cec - HDMI Consumer Electronics Control support header
	3	*
	4	* Copyright 2016 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
	5	*
	6	* This program is free software; you may redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; version 2 of the License.
	9	*
	10	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	11	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	12	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	13	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	14	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	15	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	16	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	17	* SOFTWARE.
	18	*/
	19
	20	#ifndef _MEDIA_CEC_H
	21	#define _MEDIA_CEC_H
	22
	23	#include <linux/poll.h>
	24	#include <linux/fs.h>
	25	#include <linux/debugfs.h>
	26	#include <linux/device.h>
	27	#include <linux/cdev.h>
	28	#include <linux/kthread.h>
	29	#include <linux/timer.h>
	30	#include <linux/cec-funcs.h>
	31	#include <media/rc-core.h>
e3a93adc	32	#include <media/cec-notifier.h>
a56960e8 HV	33
	34	/**
	35	* struct cec_devnode - cec device node
	36	* @dev: cec device
	37	* @cdev: cec character device
a56960e8 HV	38	* @minor: device node minor number
	39	* @registered: the device was correctly registered
	40	* @unregistered: the device was unregistered
	41	* @fhs_lock: lock to control access to the filehandle list
	42	* @fhs: the list of open filehandles (cec_fh)
	43	*
	44	* This structure represents a cec-related device node.
	45	*
	46	* The @parent is a physical device. It must be set by core or device drivers
	47	* before registering the node.
	48	*/
	49	struct cec_devnode {
	50	/* sysfs */
	51	struct device dev;
	52	struct cdev cdev;
a56960e8 HV	53
	54	/* device info */
	55	int minor;
	56	bool registered;
	57	bool unregistered;
a56960e8	58	struct list_head fhs;
62148f09	59	struct mutex lock;
a56960e8 HV	60	};
	61
	62	struct cec_adapter;
	63	struct cec_data;
	64
	65	struct cec_data {
	66	struct list_head list;
	67	struct list_head xfer_list;
	68	struct cec_adapter *adap;
	69	struct cec_msg msg;
	70	struct cec_fh *fh;
	71	struct delayed_work work;
	72	struct completion c;
	73	u8 attempts;
	74	bool new_initiator;
	75	bool blocking;
	76	bool completed;
	77	};
	78
	79	struct cec_msg_entry {
	80	struct list_head list;
	81	struct cec_msg msg;
	82	};
	83
	84	#define CEC_NUM_EVENTS CEC_EVENT_LOST_MSGS
	85
	86	struct cec_fh {
	87	struct list_head list;
	88	struct list_head xfer_list;
	89	struct cec_adapter *adap;
	90	u8 mode_initiator;
	91	u8 mode_follower;
	92
	93	/* Events */
	94	wait_queue_head_t wait;
	95	unsigned int pending_events;
	96	struct cec_event events[CEC_NUM_EVENTS];
	97	struct mutex lock;
	98	struct list_head msgs; /* queued messages */
	99	unsigned int queued_msgs;
	100	};
	101
	102	#define CEC_SIGNAL_FREE_TIME_RETRY 3
	103	#define CEC_SIGNAL_FREE_TIME_NEW_INITIATOR 5
	104	#define CEC_SIGNAL_FREE_TIME_NEXT_XFER 7
	105
	106	/* The nominal data bit period is 2.4 ms */
	107	#define CEC_FREE_TIME_TO_USEC(ft) ((ft) * 2400)
	108
	109	struct cec_adap_ops {
	110	/* Low-level callbacks */
	111	int (adap_enable)(struct cec_adapter adap, bool enable);
	112	int (adap_monitor_all_enable)(struct cec_adapter adap, bool enable);
	113	int (adap_log_addr)(struct cec_adapter adap, u8 logical_addr);
	114	int (adap_transmit)(struct cec_adapter adap, u8 attempts,
	115	u32 signal_free_time, struct cec_msg *msg);
	116	void (adap_status)(struct cec_adapter adap, struct seq_file *file);
	117
	118	/* High-level CEC message callback */
	119	int (received)(struct cec_adapter adap, struct cec_msg *msg);
	120	};
	121
	122	/*
	123	* The minimum message length you can receive (excepting poll messages) is 2.
124	* With a transfer rate of at most 36 bytes per second this makes 18 messages
125	* per second worst case.
126	*
11065f85 HV	127	* We queue at most 3 seconds worth of received messages. The CEC specification
	128	* requires that messages are replied to within a second, so 3 seconds should
	129	* give more than enough margin. Since most messages are actually more than 2
	130	* bytes, this is in practice a lot more than 3 seconds.
a56960e8	131	*/
11065f85 HV	132	#define CEC_MAX_MSG_RX_QUEUE_SZ (18 * 3)
	133
	134	/*
	135	* The transmit queue is limited to 1 second worth of messages (worst case).
	136	* Messages can be transmitted by userspace and kernel space. But for both it
	137	* makes no sense to have a lot of messages queued up. One second seems
	138	* reasonable.
	139	*/
	140	#define CEC_MAX_MSG_TX_QUEUE_SZ (18 * 1)
a56960e8 HV	141
	142	struct cec_adapter {
	143	struct module *owner;
	144	char name[32];
	145	struct cec_devnode devnode;
	146	struct mutex lock;
	147	struct rc_dev *rc;
	148
	149	struct list_head transmit_queue;
11065f85	150	unsigned int transmit_queue_sz;
a56960e8 HV	151	struct list_head wait_queue;
	152	struct cec_data *transmitting;
	153
	154	struct task_struct *kthread_config;
	155	struct completion config_completion;
	156
	157	struct task_struct *kthread;
	158	wait_queue_head_t kthread_waitq;
	159	wait_queue_head_t waitq;
	160
	161	const struct cec_adap_ops *ops;
	162	void *priv;
	163	u32 capabilities;
	164	u8 available_log_addrs;
	165
	166	u16 phys_addr;
	167	bool is_configuring;
	168	bool is_configured;
	169	u32 monitor_all_cnt;
	170	u32 follower_cnt;
	171	struct cec_fh *cec_follower;
	172	struct cec_fh *cec_initiator;
	173	bool passthrough;
	174	struct cec_log_addrs log_addrs;
	175
e3a93adc HV	176	#ifdef CONFIG_MEDIA_CEC_NOTIFIER
	177	struct cec_notifier *notifier;
	178	#endif
	179
a56960e8 HV	180	struct dentry *cec_dir;
	181	struct dentry *status_file;
	182
	183	u16 phys_addrs[15];
	184	u32 sequence;
	185
	186	char input_name[32];
	187	char input_phys[32];
	188	char input_drv[32];
	189	};
	190
0b0b97dc JA	191	static inline void cec_get_drvdata(const struct cec_adapter adap)
	192	{
	193	return adap->priv;
	194	}
	195
a56960e8 HV	196	static inline bool cec_has_log_addr(const struct cec_adapter *adap, u8 log_addr)
	197	{
	198	return adap->log_addrs.log_addr_mask & (1 << log_addr);
	199	}
	200
	201	static inline bool cec_is_sink(const struct cec_adapter *adap)
	202	{
	203	return adap->phys_addr == 0;
	204	}
	205
ee7e9871 HV	206	#define cec_phys_addr_exp(pa) \
	207	((pa) >> 12), ((pa) >> 8) & 0xf, ((pa) >> 4) & 0xf, (pa) & 0xf
	208
56a263aa	209	#if IS_ENABLED(CONFIG_CEC_CORE)
a56960e8	210	struct cec_adapter cec_allocate_adapter(const struct cec_adap_ops ops,
f51e8080 HV	211	void priv, const char name, u32 caps, u8 available_las);
f51e8080 HV	212	int cec_register_adapter(struct cec_adapter adap, struct device parent);
a56960e8 HV	213	void cec_unregister_adapter(struct cec_adapter *adap);
	214	void cec_delete_adapter(struct cec_adapter *adap);
	215
	216	int cec_s_log_addrs(struct cec_adapter adap, struct cec_log_addrs log_addrs,
	217	bool block);
	218	void cec_s_phys_addr(struct cec_adapter *adap, u16 phys_addr,
	219	bool block);
	220	int cec_transmit_msg(struct cec_adapter adap, struct cec_msg msg,
	221	bool block);
	222
	223	/* Called by the adapter */
	224	void cec_transmit_done(struct cec_adapter *adap, u8 status, u8 arb_lost_cnt,
	225	u8 nack_cnt, u8 low_drive_cnt, u8 error_cnt);
	226	void cec_received_msg(struct cec_adapter adap, struct cec_msg msg);
	227
ee7e9871 HV	228	/**
	229	* cec_get_edid_phys_addr() - find and return the physical address
	230	*
	231	* @edid: pointer to the EDID data
	232	* @size: size in bytes of the EDID data
	233	* @offset: If not %NULL then the location of the physical address
	234	* bytes in the EDID will be returned here. This is set to 0
	235	* if there is no physical address found.
	236	*
	237	* Return: the physical address or CEC_PHYS_ADDR_INVALID if there is none.
	238	*/
	239	u16 cec_get_edid_phys_addr(const u8 *edid, unsigned int size,
	240	unsigned int *offset);
	241
	242	/**
	243	* cec_set_edid_phys_addr() - find and set the physical address
	244	*
	245	* @edid: pointer to the EDID data
	246	* @size: size in bytes of the EDID data
	247	* @phys_addr: the new physical address
	248	*
	249	* This function finds the location of the physical address in the EDID
	250	* and fills in the given physical address and updates the checksum
	251	* at the end of the EDID block. It does nothing if the EDID doesn't
	252	* contain a physical address.
	253	*/
	254	void cec_set_edid_phys_addr(u8 *edid, unsigned int size, u16 phys_addr);
	255
	256	/**
	257	* cec_phys_addr_for_input() - calculate the PA for an input
	258	*
	259	* @phys_addr: the physical address of the parent
	260	* @input: the number of the input port, must be between 1 and 15
	261	*
	262	* This function calculates a new physical address based on the input
	263	* port number. For example:
	264	*
	265	* PA = 0.0.0.0 and input = 2 becomes 2.0.0.0
	266	*
	267	* PA = 3.0.0.0 and input = 1 becomes 3.1.0.0
	268	*
	269	* PA = 3.2.1.0 and input = 5 becomes 3.2.1.5
	270	*
	271	* PA = 3.2.1.3 and input = 5 becomes f.f.f.f since it maxed out the depth.
	272	*
	273	* Return: the new physical address or CEC_PHYS_ADDR_INVALID.
	274	*/
	275	u16 cec_phys_addr_for_input(u16 phys_addr, u8 input);
	276
	277	/**
	278	* cec_phys_addr_validate() - validate a physical address from an EDID
	279	*
	280	* @phys_addr: the physical address to validate
	281	* @parent: if not %NULL, then this is filled with the parents PA.
	282	* @port: if not %NULL, then this is filled with the input port.
	283	*
	284	* This validates a physical address as read from an EDID. If the
	285	* PA is invalid (such as 1.0.1.0 since '0' is only allowed at the end),
	286	* then it will return -EINVAL.
	287	*
	288	* The parent PA is passed into %parent and the input port is passed into
	289	* %port. For example:
	290	*
	291	* PA = 0.0.0.0: has parent 0.0.0.0 and input port 0.
292	*
293	* PA = 1.0.0.0: has parent 0.0.0.0 and input port 1.
294	*
295	* PA = 3.2.0.0: has parent 3.0.0.0 and input port 2.
296	*
297	* PA = f.f.f.f: has parent f.f.f.f and input port 0.
298	*
299	* Return: 0 if the PA is valid, -EINVAL if not.
300	*/
301	int cec_phys_addr_validate(u16 phys_addr, u16 parent, u16 port);
302
e3a93adc HV	303	#ifdef CONFIG_MEDIA_CEC_NOTIFIER
	304	void cec_register_cec_notifier(struct cec_adapter *adap,
	305	struct cec_notifier *notifier);
	306	#endif
	307
a56960e8 HV	308	#else
a56960e8 HV	309
f51e8080 HV	310	static inline int cec_register_adapter(struct cec_adapter *adap,
f51e8080 HV	311	struct device *parent)
a56960e8 HV	312	{
	313	return 0;
	314	}
	315
	316	static inline void cec_unregister_adapter(struct cec_adapter *adap)
	317	{
	318	}
	319
	320	static inline void cec_delete_adapter(struct cec_adapter *adap)
	321	{
	322	}
	323
	324	static inline void cec_s_phys_addr(struct cec_adapter *adap, u16 phys_addr,
	325	bool block)
	326	{
	327	}
	328
ee7e9871 HV	329	static inline u16 cec_get_edid_phys_addr(const u8 *edid, unsigned int size,
	330	unsigned int *offset)
	331	{
	332	if (offset)
	333	*offset = 0;
	334	return CEC_PHYS_ADDR_INVALID;
	335	}
	336
	337	static inline void cec_set_edid_phys_addr(u8 *edid, unsigned int size,
	338	u16 phys_addr)
	339	{
	340	}
	341
	342	static inline u16 cec_phys_addr_for_input(u16 phys_addr, u8 input)
	343	{
	344	return CEC_PHYS_ADDR_INVALID;
	345	}
	346
	347	static inline int cec_phys_addr_validate(u16 phys_addr, u16 parent, u16 port)
	348	{
	349	return 0;
	350	}
	351
a56960e8 HV	352	#endif
	353
	354	#endif /* _MEDIA_CEC_H */