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path: root/drivers/gpu/drm/nouveau/nouveau_gpio.h
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_gpio.h')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_gpio.h71
1 files changed, 71 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_gpio.h b/drivers/gpu/drm/nouveau/nouveau_gpio.h
new file mode 100644
index 00000000000..64c5cb077ac
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nouveau_gpio.h
@@ -0,0 +1,71 @@
+/*
+ * 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