| Ben Skeggs | a0b2563 | 2011-11-21 16:41:48 +1000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2011 Red Hat Inc. |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice shall be included in |
| 12 | * all copies or substantial portions of the Software. |
| 13 | * |
| 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| 20 | * OTHER DEALINGS IN THE SOFTWARE. |
| 21 | */ |
| 22 | |
| 23 | #ifndef __NOUVEAU_GPIO_H__ |
| 24 | #define __NOUVEAU_GPIO_H__ |
| 25 | |
| 26 | struct gpio_func { |
| 27 | u8 func; |
| 28 | u8 line; |
| 29 | u8 log[2]; |
| 30 | }; |
| 31 | |
| 32 | /* nouveau_gpio.c */ |
| 33 | int nouveau_gpio_create(struct drm_device *); |
| 34 | void nouveau_gpio_destroy(struct drm_device *); |
| 35 | int nouveau_gpio_init(struct drm_device *); |
| 36 | void nouveau_gpio_fini(struct drm_device *); |
| 37 | void nouveau_gpio_reset(struct drm_device *); |
| 38 | int nouveau_gpio_drive(struct drm_device *, int idx, int line, |
| 39 | int dir, int out); |
| 40 | int nouveau_gpio_sense(struct drm_device *, int idx, int line); |
| 41 | int nouveau_gpio_find(struct drm_device *, int idx, u8 tag, u8 line, |
| 42 | struct gpio_func *); |
| 43 | int nouveau_gpio_set(struct drm_device *, int idx, u8 tag, u8 line, int state); |
| 44 | int nouveau_gpio_get(struct drm_device *, int idx, u8 tag, u8 line); |
| 45 | int nouveau_gpio_irq(struct drm_device *, int idx, u8 tag, u8 line, bool on); |
| 46 | void nouveau_gpio_isr(struct drm_device *, int idx, u32 mask); |
| 47 | int nouveau_gpio_isr_add(struct drm_device *, int idx, u8 tag, u8 line, |
| 48 | void (*)(void *, int state), void *data); |
| 49 | void nouveau_gpio_isr_del(struct drm_device *, int idx, u8 tag, u8 line, |
| 50 | void (*)(void *, int state), void *data); |
| 51 | |
| 52 | static inline bool |
| 53 | nouveau_gpio_func_valid(struct drm_device *dev, u8 tag) |
| 54 | { |
| 55 | struct gpio_func func; |
| 56 | return (nouveau_gpio_find(dev, 0, tag, 0xff, &func)) == 0; |
| 57 | } |
| 58 | |
| 59 | static inline int |
| 60 | nouveau_gpio_func_set(struct drm_device *dev, u8 tag, int state) |
| 61 | { |
| 62 | return nouveau_gpio_set(dev, 0, tag, 0xff, state); |
| 63 | } |
| 64 | |
| 65 | static inline int |
| 66 | nouveau_gpio_func_get(struct drm_device *dev, u8 tag) |
| 67 | { |
| 68 | return nouveau_gpio_get(dev, 0, tag, 0xff); |
| 69 | } |
| 70 | |
| 71 | #endif |