mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-23 05:56:08 +07:00
a0b2563551
- moves out of nouveau_bios.c and demagics the logical state definitions - simplifies chipset-specific driver interface - makes most of gpio irq handling common, will use for nv4x hpd later - api extended to allow both direct gpio access, and access using the logical function states - api extended to allow for future use of gpio extender chips - pre-nv50 was handled very badly, the main issue being that all GPIOs were being treated as output-only. - fixes nvd0 so gpio changes actually stick, magic reg needs bashing Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
72 lines
2.6 KiB
C
72 lines
2.6 KiB
C
/*
|
|
* 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
|