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path: root/drivers/gpu/drm/nouveau/core/include/subdev/gpio.h
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Diffstat (limited to 'drivers/gpu/drm/nouveau/core/include/subdev/gpio.h')
-rw-r--r--drivers/gpu/drm/nouveau/core/include/subdev/gpio.h53
1 files changed, 53 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 0000000..c85b9f1
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/include/subdev/gpio.h
@@ -0,0 +1,53 @@
+#ifndef __NOUVEAU_GPIO_H__
+#define __NOUVEAU_GPIO_H__
+
+#include <core/subdev.h>
+#include <core/device.h>
+#include <core/event.h>
+
+#include <subdev/bios.h>
+#include <subdev/bios/gpio.h>
+
+struct nouveau_gpio {
+ struct nouveau_subdev base;
+
+ struct nouveau_event *events;
+
+ /* hardware interfaces */
+ void (*reset)(struct nouveau_gpio *, u8 func);
+ int (*drive)(struct nouveau_gpio *, int line, int dir, int out);
+ int (*sense)(struct nouveau_gpio *, int line);
+
+ /* 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);
+};
+
+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,l,d) \
+ nouveau_gpio_create_((p), (e), (o), (l), sizeof(**d), (void **)d)
+#define nouveau_gpio_destroy(p) ({ \
+ struct nouveau_gpio *gpio = (p); \
+ _nouveau_gpio_dtor(nv_object(gpio)); \
+})
+#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, int, void **);
+void _nouveau_gpio_dtor(struct nouveau_object *);
+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;
+extern struct nouveau_oclass nve0_gpio_oclass;
+
+#endif