| Sachin Bhayare | eeb8889 | 2018-01-02 16:36:01 +0530 | [diff] [blame] | 1 | /* Copyright (c) 2010-2013, 2015-2016, 2018, The Linux Foundation. All rights reserved. |
| 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | */ |
| 12 | |
| 13 | #ifndef __MDSS_HDMI_CEC_H__ |
| 14 | #define __MDSS_HDMI_CEC_H__ |
| 15 | |
| 16 | #include "mdss_hdmi_util.h" |
| 17 | #include "mdss_cec_core.h" |
| 18 | |
| 19 | #define RETRANSMIT_MAX_NUM 5 |
| 20 | |
| 21 | /** |
| 22 | * struct hdmi_cec_init_data - data needed for initializing cec hw module |
| 23 | * @workq: pointer to workqueue |
| 24 | * @io: pointer to register access related data |
| 25 | * @pinfo: pointer to panel information data |
| 26 | * @cbs: pointer to cec abstract callback functions. |
| 27 | * @ops: pointer to cec hw operation functions. |
| 28 | * |
| 29 | * Defines the data needed to be provided while initializing cec hw module |
| 30 | */ |
| 31 | struct hdmi_cec_init_data { |
| 32 | struct workqueue_struct *workq; |
| 33 | struct dss_io_data *io; |
| 34 | struct mdss_panel_info *pinfo; |
| 35 | struct cec_cbs *cbs; |
| 36 | struct cec_ops *ops; |
| 37 | }; |
| 38 | |
| 39 | /** |
| 40 | * hdmi_cec_isr() - interrupt handler for cec hw module |
| 41 | * @cec_ctrl: pointer to cec hw module's data |
| 42 | * |
| 43 | * Return: irq error code |
| 44 | * |
| 45 | * The API can be called by HDMI Tx driver on receiving hw interrupts |
| 46 | * to let the CEC related interrupts handled by this module. |
| 47 | */ |
| 48 | int hdmi_cec_isr(void *cec_ctrl); |
| 49 | |
| 50 | /** |
| 51 | * hdmi_cec_init() - Initialize the CEC hw module |
| 52 | * @init_data: data needed to initialize the cec hw module |
| 53 | * |
| 54 | * Return: pointer to cec hw modules data that needs to be passed when |
| 55 | * calling cec hw modules API or error code. |
| 56 | * |
| 57 | * The API registers CEC HW modules with the client and provides HW |
| 58 | * specific operations. |
| 59 | */ |
| 60 | void *hdmi_cec_init(struct hdmi_cec_init_data *init_data); |
| 61 | |
| 62 | /** |
| 63 | * hdmi_cec_deinit() - de-initialize CEC HW module |
| 64 | * @data: CEC HW module data |
| 65 | * |
| 66 | * This API release all resources allocated. |
| 67 | */ |
| 68 | void hdmi_cec_deinit(void *data); |
| 69 | |
| 70 | /** |
| 71 | * hdmi_cec_is_wakeup_en() - checks cec wakeup state |
| 72 | * @cec_ctrl: pointer to cec hw module's data |
| 73 | * |
| 74 | * Return: cec wakeup state |
| 75 | * |
| 76 | * This API is used to query whether the cec wakeup functionality is |
| 77 | * enabled or not. |
| 78 | */ |
| 79 | bool hdmi_cec_is_wakeup_en(void *cec_ctrl); |
| 80 | |
| 81 | /** |
| 82 | * hdmi_cec_device_suspend() - updates cec with device suspend state |
| 83 | * @cec_ctrl: pointer to cec hw module's data |
| 84 | * @suspend: device suspend state |
| 85 | * |
| 86 | * This API is used to update the CEC HW module of the device's suspend |
| 87 | * state. |
| 88 | */ |
| 89 | void hdmi_cec_device_suspend(void *cec_ctrl, bool suspend); |
| 90 | #endif /* __MDSS_HDMI_CEC_H__ */ |