| /* |
| * Copyright 2011 Red Hat Inc. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| * OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| #ifndef __NOUVEAU_GPIO_H__ |
| #define __NOUVEAU_GPIO_H__ |
| |
| struct gpio_func { |
| u8 func; |
| u8 line; |
| u8 log[2]; |
| }; |
| |
| /* nouveau_gpio.c */ |
| int nouveau_gpio_create(struct drm_device *); |
| void nouveau_gpio_destroy(struct drm_device *); |
| int nouveau_gpio_init(struct drm_device *); |
| void nouveau_gpio_fini(struct drm_device *); |
| void nouveau_gpio_reset(struct drm_device *); |
| int nouveau_gpio_drive(struct drm_device *, int idx, int line, |
| int dir, int out); |
| int nouveau_gpio_sense(struct drm_device *, int idx, int line); |
| int nouveau_gpio_find(struct drm_device *, int idx, u8 tag, u8 line, |
| struct gpio_func *); |
| int nouveau_gpio_set(struct drm_device *, int idx, u8 tag, u8 line, int state); |
| int nouveau_gpio_get(struct drm_device *, int idx, u8 tag, u8 line); |
| int nouveau_gpio_irq(struct drm_device *, int idx, u8 tag, u8 line, bool on); |
| void nouveau_gpio_isr(struct drm_device *, int idx, u32 mask); |
| int nouveau_gpio_isr_add(struct drm_device *, int idx, u8 tag, u8 line, |
| void (*)(void *, int state), void *data); |
| void nouveau_gpio_isr_del(struct drm_device *, int idx, u8 tag, u8 line, |
| void (*)(void *, int state), void *data); |
| |
| static inline bool |
| nouveau_gpio_func_valid(struct drm_device *dev, u8 tag) |
| { |
| struct gpio_func func; |
| return (nouveau_gpio_find(dev, 0, tag, 0xff, &func)) == 0; |
| } |
| |
| static inline int |
| nouveau_gpio_func_set(struct drm_device *dev, u8 tag, int state) |
| { |
| return nouveau_gpio_set(dev, 0, tag, 0xff, state); |
| } |
| |
| static inline int |
| nouveau_gpio_func_get(struct drm_device *dev, u8 tag) |
| { |
| return nouveau_gpio_get(dev, 0, tag, 0xff); |
| } |
| |
| #endif |