diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/include/subdev/gpio.h')
-rw-r--r-- | drivers/gpu/drm/nouveau/core/include/subdev/gpio.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/gpio.h b/drivers/gpu/drm/nouveau/core/include/subdev/gpio.h new file mode 100644 index 000000000000..9ea2b12cc15d --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/include/subdev/gpio.h @@ -0,0 +1,64 @@ +#ifndef __NOUVEAU_GPIO_H__ +#define __NOUVEAU_GPIO_H__ + +#include <core/subdev.h> +#include <core/device.h> + +#include <subdev/bios.h> +#include <subdev/bios/gpio.h> + +struct nouveau_gpio { + struct nouveau_subdev base; + + /* hardware interfaces */ + void (*reset)(struct nouveau_gpio *); + int (*drive)(struct nouveau_gpio *, int line, int dir, int out); + int (*sense)(struct nouveau_gpio *, int line); + void (*irq_enable)(struct nouveau_gpio *, int line, bool); + + /* software interfaces */ + int (*find)(struct nouveau_gpio *, int idx, u8 tag, u8 line, + struct dcb_gpio_func *); + int (*set)(struct nouveau_gpio *, int idx, u8 tag, u8 line, int state); + int (*get)(struct nouveau_gpio *, int idx, u8 tag, u8 line); + int (*irq)(struct nouveau_gpio *, int idx, u8 tag, u8 line, bool on); + + /* interrupt handling */ + struct list_head isr; + spinlock_t lock; + + void (*isr_run)(struct nouveau_gpio *, int idx, u32 mask); + int (*isr_add)(struct nouveau_gpio *, int idx, u8 tag, u8 line, + void (*)(void *, int state), void *data); + void (*isr_del)(struct nouveau_gpio *, int idx, u8 tag, u8 line, + void (*)(void *, int state), void *data); +}; + +static inline struct nouveau_gpio * +nouveau_gpio(void *obj) +{ + return (void *)nv_device(obj)->subdev[NVDEV_SUBDEV_GPIO]; +} + +#define nouveau_gpio_create(p,e,o,d) \ + nouveau_gpio_create_((p), (e), (o), sizeof(**d), (void **)d) +#define nouveau_gpio_destroy(p) \ + nouveau_subdev_destroy(&(p)->base) +#define nouveau_gpio_fini(p,s) \ + nouveau_subdev_fini(&(p)->base, (s)) + +int nouveau_gpio_create_(struct nouveau_object *, struct nouveau_object *, + struct nouveau_oclass *, int, void **); +int nouveau_gpio_init(struct nouveau_gpio *); + +extern struct nouveau_oclass nv10_gpio_oclass; +extern struct nouveau_oclass nv50_gpio_oclass; +extern struct nouveau_oclass nvd0_gpio_oclass; + +void nv50_gpio_dtor(struct nouveau_object *); +int nv50_gpio_init(struct nouveau_object *); +int nv50_gpio_fini(struct nouveau_object *, bool); +void nv50_gpio_intr(struct nouveau_subdev *); +void nv50_gpio_irq_enable(struct nouveau_gpio *, int line, bool); + +#endif |