diff options
Diffstat (limited to 'drivers/media/cec/usb/extron-da-hd-4k-plus/cec-splitter.h')
| -rw-r--r-- | drivers/media/cec/usb/extron-da-hd-4k-plus/cec-splitter.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/media/cec/usb/extron-da-hd-4k-plus/cec-splitter.h b/drivers/media/cec/usb/extron-da-hd-4k-plus/cec-splitter.h new file mode 100644 index 000000000000..7422f7c5719e --- /dev/null +++ b/drivers/media/cec/usb/extron-da-hd-4k-plus/cec-splitter.h @@ -0,0 +1,51 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +/* + * Copyright 2021-2024 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + */ + +#ifndef _CEC_SPLITTER_H_ +#define _CEC_SPLITTER_H_ + +struct cec_splitter; + +#define STATE_CHANGE_MAX_REPEATS 2 + +struct cec_splitter_port { + struct cec_splitter *splitter; + struct cec_adapter *adap; + unsigned int port; + bool is_active_source; + bool found_sink; + ktime_t lost_sink_ts; + u32 out_request_current_latency_seq; + ktime_t out_request_current_latency_ts; + u8 video_latency; + u32 out_give_device_power_status_seq; + ktime_t out_give_device_power_status_ts; + u8 power_status; +}; + +struct cec_splitter { + struct device *dev; + unsigned int num_out_ports; + struct cec_splitter_port **ports; + + /* High-level splitter state */ + u8 request_current_latency_dest; + u8 give_device_power_status_dest; + bool is_standby; +}; + +void cec_splitter_unconfigured_output(struct cec_splitter_port *port); +void cec_splitter_configured_output(struct cec_splitter_port *port); +int cec_splitter_received_input(struct cec_splitter_port *port, struct cec_msg *msg); +int cec_splitter_received_output(struct cec_splitter_port *port, struct cec_msg *msg, + struct cec_adapter *input_adap); +void cec_splitter_nb_transmit_canceled_output(struct cec_splitter_port *port, + const struct cec_msg *msg, + struct cec_adapter *input_adap); +bool cec_splitter_poll(struct cec_splitter *splitter, + struct cec_adapter *input_adap, bool debug); + +#endif |