2db17aa7b2
Touch driver can call the api to set the touch state. And panel driver can call the api to get the touch state. And when the touch state is not 0, we can not power down panel. Change-Id: I3cb0dceeb7ff9b0f731c0ce2d9f2fea2e648d223 Signed-off-by: houdz1 <houdz1@motorola.com> Reviewed-on: https://gerrit.mot.com/1499392 SLTApproved: Slta Waiver SME-Granted: SME Approvals Granted Tested-by: Jira Key Reviewed-by: Jun Weng <wengjun1@motorola.com> Reviewed-by: Huosheng Liao <liaohs@motorola.com> Submit-Approved: Jira Key Reviewed-on: https://gerrit.mot.com/1509882 Reviewed-by: Xiangpo Zhao <zhaoxp3@motorola.com>
59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
/* Copyright (c) 2016, Motorola Mobility, LLC.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <linux/panel_notifier.h>
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static BLOCKING_NOTIFIER_HEAD(panel_notifier_list);
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int panel_notify(unsigned int event, void *data)
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{
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return blocking_notifier_call_chain(&panel_notifier_list, event, data);
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}
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EXPORT_SYMBOL_GPL(panel_notify);
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int panel_register_notifier(struct notifier_block *nb)
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{
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return blocking_notifier_chain_register(&panel_notifier_list, nb);
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}
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EXPORT_SYMBOL_GPL(panel_register_notifier);
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int panel_unregister_notifier(struct notifier_block *nb)
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{
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return blocking_notifier_chain_unregister(&panel_notifier_list, nb);
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}
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EXPORT_SYMBOL_GPL(panel_unregister_notifier);
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static int touch_state[TOUCH_PANEL_MAX_IDX] = {0};
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int touch_set_state(int state, int panel_idx)
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{
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int rc = 0;
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if (panel_idx >= TOUCH_PANEL_MAX_IDX)
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rc = -EINVAL;
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else
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touch_state[panel_idx] = state;
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return rc;
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}
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EXPORT_SYMBOL_GPL(touch_set_state);
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int check_touch_state(int *state, int panel_idx)
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{
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int rc = 0;
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if (panel_idx >= TOUCH_PANEL_MAX_IDX) rc = -EINVAL;
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else *state = touch_state[panel_idx];
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return rc;
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}
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EXPORT_SYMBOL_GPL(check_touch_state);
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