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media: cec-pin: add 'received' callback 

Drivers that use the CEC pin framework have no way of processing messages
themselves by providing the 'received' callback. This is present in
cec_ops, but not in cec_pin_ops.

Add support for this callback.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Hans Verkuil 2019-10-09 11:49:19 -03:00 committed by Mauro Carvalho Chehab
parent 65d270acb2
commit 69e3235d58
2 changed files with 18 additions and 2 deletions
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10
drivers/media/cec/cec-pin.c
View File

@ -1279,6 +1279,15 @@ static void cec_pin_adap_free(struct cec_adapter *adap)
kfree(pin);
}
static int cec_pin_received(struct cec_adapter *adap, struct cec_msg *msg)
{
struct cec_pin *pin = adap->pin;
if (pin->ops->received)
return pin->ops->received(adap, msg);
return -ENOMSG;
}
void cec_pin_changed(struct cec_adapter *adap, bool value)
{
struct cec_pin *pin = adap->pin;
@ -1301,6 +1310,7 @@ static const struct cec_adap_ops cec_pin_adap_ops = {
.error_inj_parse_line = cec_pin_error_inj_parse_line,
.error_inj_show = cec_pin_error_inj_show,
#endif
.received = cec_pin_received,
};
struct cec_adapter *cec_pin_allocate_adapter(const struct cec_pin_ops *pin_ops,

10
include/media/cec-pin.h
View File

@ -29,8 +29,11 @@
* an error if negative. If NULL or -ENOTTY is returned,
* then this is not supported.
*
* These operations are used by the cec pin framework to manipulate
* the CEC pin.
* @received: optional. High-level CEC message callback. Allows the driver
* to process CEC messages.
*
* These operations (except for the @received op) are used by the
* cec pin framework to manipulate the CEC pin.
*/
struct cec_pin_ops {
bool (*read)(struct cec_adapter *adap);
@ -42,6 +45,9 @@ struct cec_pin_ops {
void (*status)(struct cec_adapter *adap, struct seq_file *file);
int (*read_hpd)(struct cec_adapter *adap);
int (*read_5v)(struct cec_adapter *adap);
/* High-level CEC message callback */
int (*received)(struct cec_adapter *adap, struct cec_msg *msg);
};
/**