| Mike Lockwood | 80d38ea | 2008-10-14 12:50:16 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Switch class driver |
| 3 | * |
| 4 | * Copyright (C) 2008 Google, Inc. |
| 5 | * Author: Mike Lockwood <lockwood@android.com> |
| 6 | * |
| 7 | * This software is licensed under the terms of the GNU General Public |
| 8 | * License version 2, as published by the Free Software Foundation, and |
| 9 | * may be copied, distributed, and modified under those terms. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | */ |
| 17 | |
| 18 | #ifndef __LINUX_SWITCH_H__ |
| 19 | #define __LINUX_SWITCH_H__ |
| 20 | |
| 21 | struct switch_dev { |
| 22 | const char *name; |
| 23 | struct device *dev; |
| 24 | int index; |
| 25 | int state; |
| 26 | |
| 27 | ssize_t (*print_name)(struct switch_dev *sdev, char *buf); |
| 28 | ssize_t (*print_state)(struct switch_dev *sdev, char *buf); |
| 29 | }; |
| 30 | |
| 31 | struct gpio_switch_platform_data { |
| 32 | const char *name; |
| 33 | unsigned gpio; |
| 34 | |
| 35 | /* if NULL, switch_dev.name will be printed */ |
| 36 | const char *name_on; |
| 37 | const char *name_off; |
| 38 | /* if NULL, "0" or "1" will be printed */ |
| 39 | const char *state_on; |
| 40 | const char *state_off; |
| 41 | }; |
| 42 | |
| 43 | extern int switch_dev_register(struct switch_dev *sdev); |
| 44 | extern void switch_dev_unregister(struct switch_dev *sdev); |
| 45 | |
| 46 | static inline int switch_get_state(struct switch_dev *sdev) |
| 47 | { |
| 48 | return sdev->state; |
| 49 | } |
| 50 | |
| 51 | extern void switch_set_state(struct switch_dev *sdev, int state); |
| 52 | |
| 53 | #endif /* __LINUX_SWITCH_H__ */ |