Lines Matching +full:low +full:- +full:to +full:- +full:high
1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * cec-pin.h - low-level CEC pin control
15 * struct cec_pin_ops - low-level CEC pin operations
16 * @read: read the CEC pin. Returns > 0 if high, 0 if low, or an error
18 * @low: drive the CEC pin low.
19 * @high: stop driving the CEC pin. The pull-up will drive the pin
20 * high, unless someone else is driving the pin low.
21 * @enable_irq: optional, enable the interrupt to detect pin voltage changes.
26 * @read_hpd: optional. Read the HPD pin. Returns > 0 if high, 0 if low or
28 * @read_5v: optional. Read the 5V pin. Returns > 0 if high, 0 if low or
30 * @received: optional. High-level CEC message callback. Allows the driver
31 * to process CEC messages.
34 * cec pin framework to manipulate the CEC pin.
38 void (*low)(struct cec_adapter *adap); member
39 void (*high)(struct cec_adapter *adap); member
47 /* High-level CEC message callback */
52 * cec_pin_changed() - update pin state from interrupt
54 * @adap: pointer to the cec adapter
55 * @value: when true the pin is high, otherwise it is low
63 * cec_pin_allocate_adapter() - allocate a pin-based cec adapter
65 * @pin_ops: low-level pin operations
66 * @priv: will be stored in adap->priv and can be used by the adapter ops.
67 * Use cec_get_drvdata(adap) to get the priv pointer.
74 * Return: a pointer to the cec adapter or an error pointer