change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/include/media/cec-pin.h
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@@ -13,7 +13,8 @@
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 /**
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  * struct cec_pin_ops - low-level CEC pin operations
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- * @read:	read the CEC pin. Return true if high, false if low.
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+ * @read:	read the CEC pin. Returns > 0 if high, 0 if low, or an error
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+ *		if negative.
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  * @low:	drive the CEC pin low.
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  * @high:	stop driving the CEC pin. The pull-up will drive the pin
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  *		high, unless someone else is driving the pin low.
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@@ -22,18 +23,18 @@
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  * @free:	optional. Free any allocated resources. Called when the
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  *		adapter is deleted.
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  * @status:	optional, log status information.
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- * @read_hpd:	read the HPD pin. Return true if high, false if low or
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- *		an error if negative. If NULL or -ENOTTY is returned,
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- *		then this is not supported.
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- * @read_5v:	read the 5V pin. Return true if high, false if low or
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- *		an error if negative. If NULL or -ENOTTY is returned,
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- *		then this is not supported.
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+ * @read_hpd:	optional. Read the HPD pin. Returns > 0 if high, 0 if low or
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+ *		an error if negative.
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+ * @read_5v:	optional. Read the 5V pin. Returns > 0 if high, 0 if low or
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+ *		an error if negative.
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+ * @received:	optional. High-level CEC message callback. Allows the driver
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+ *		to process CEC messages.
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  *
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- * These operations are used by the cec pin framework to manipulate
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- * the CEC pin.
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+ * These operations (except for the @received op) are used by the
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+ * cec pin framework to manipulate the CEC pin.
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  */
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 struct cec_pin_ops {
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-	bool (*read)(struct cec_adapter *adap);
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+	int  (*read)(struct cec_adapter *adap);
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 	void (*low)(struct cec_adapter *adap);
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 	void (*high)(struct cec_adapter *adap);
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 	bool (*enable_irq)(struct cec_adapter *adap);
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@@ -42,6 +43,9 @@
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 	void (*status)(struct cec_adapter *adap, struct seq_file *file);
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 	int  (*read_hpd)(struct cec_adapter *adap);
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 	int  (*read_5v)(struct cec_adapter *adap);
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+
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+	/* High-level CEC message callback */
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+	int (*received)(struct cec_adapter *adap, struct cec_msg *msg);
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 };
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 /**