| /* |
| * Google LWIS I/O Entry Implementation |
| * |
| * Copyright (c) 2021 Google, LLC |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #ifndef LWIS_IO_ENTRY_H_ |
| #define LWIS_IO_ENTRY_H_ |
| |
| #include "lwis_commands.h" |
| #include "lwis_device.h" |
| |
| /* Minimum value of sleep time in us */ |
| #define MIN_WAIT_TIME 10 |
| /* Maximum value of sleep time in us */ |
| #define MAX_WAIT_TIME 1000000 |
| /* Default value of polling timeout */ |
| #define DEFAULT_POLLING_TIMEOUT_MS 5 |
| |
| /* |
| * lwis_io_entry_poll: |
| * Polls a register for a specified time or until it reaches the expected value. |
| */ |
| int lwis_io_entry_poll(struct lwis_device *lwis_dev, struct lwis_io_entry *entry, bool is_short); |
| |
| /* |
| * lwis_io_entry_read_assert: |
| * Returns error if a register's value is not as expected. |
| */ |
| int lwis_io_entry_read_assert(struct lwis_device *lwis_dev, struct lwis_io_entry *entry); |
| |
| /* |
| * lwis_io_entry_wait: |
| * Waits for a settling time to meet the devices to function properly. |
| */ |
| int lwis_io_entry_wait(struct lwis_device *lwis_dev, struct lwis_io_entry *entry); |
| |
| #endif /* LWIS_IO_ENTRY_H_ */ |
