| Simon Guinot | d6fe136 | 2010-10-22 00:44:19 +0200 | [diff] [blame] | 1 | /* |
| 2 | * include/linux/gpio-fan.h |
| 3 | * |
| 4 | * Platform data structure for GPIO fan driver |
| 5 | * |
| 6 | * This file is licensed under the terms of the GNU General Public |
| 7 | * License version 2. This program is licensed "as is" without any |
| 8 | * warranty of any kind, whether express or implied. |
| 9 | */ |
| 10 | |
| 11 | #ifndef __LINUX_GPIO_FAN_H |
| 12 | #define __LINUX_GPIO_FAN_H |
| 13 | |
| 14 | struct gpio_fan_alarm { |
| 15 | unsigned gpio; |
| 16 | unsigned active_low; |
| 17 | }; |
| 18 | |
| 19 | struct gpio_fan_speed { |
| 20 | int rpm; |
| 21 | int ctrl_val; |
| 22 | }; |
| 23 | |
| 24 | struct gpio_fan_platform_data { |
| 25 | int num_ctrl; |
| 26 | unsigned *ctrl; /* fan control GPIOs. */ |
| 27 | struct gpio_fan_alarm *alarm; /* fan alarm GPIO. */ |
| 28 | /* |
| 29 | * Speed conversion array: rpm from/to GPIO bit field. |
| 30 | * This array _must_ be sorted in ascending rpm order. |
| 31 | */ |
| 32 | int num_speed; |
| 33 | struct gpio_fan_speed *speed; |
| 34 | }; |
| 35 | |
| 36 | #endif /* __LINUX_GPIO_FAN_H */ |