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/*
* 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
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