1 files changed, 141 insertions, 0 deletions

diff --git a/drivers/gpu/drm/udl/udl_drv.h b/drivers/gpu/drm/udl/udl_drv.h
new file mode 100644
index 000000000000..1612954a5bc4
--- /dev/null
+++ b/drivers/gpu/drm/udl/udl_drv.h
@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2012 Red Hat
+ *
+ * based in parts on udlfb.c:
+ * Copyright (C) 2009 Roberto De Ioris <roberto@unbit.it>
+ * Copyright (C) 2009 Jaya Kumar <jayakumar.lkml@gmail.com>
+ * Copyright (C) 2009 Bernie Thompson <bernie@plugable.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License v2. See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+#ifndef UDL_DRV_H
+#define UDL_DRV_H
+
+#include <linux/usb.h>
+
+#define DRIVER_NAME             "udl"
+#define DRIVER_DESC             "DisplayLink"
+#define DRIVER_DATE             "20120220"
+
+#define DRIVER_MAJOR            0
+#define DRIVER_MINOR            0
+#define DRIVER_PATCHLEVEL       1
+
+struct udl_device;
+
+struct urb_node {
+        struct list_head entry;
+        struct udl_device *dev;
+        struct delayed_work release_urb_work;
+        struct urb *urb;
+};
+
+struct urb_list {
+        struct list_head list;
+        spinlock_t lock;
+        struct semaphore limit_sem;
+        int available;
+        int count;
+        size_t size;
+};
+
+struct udl_fbdev;
+
+struct udl_device {
+        struct device *dev;
+        struct drm_device *ddev;
+
+        int sku_pixel_limit;
+
+        struct urb_list urbs;
+        atomic_t lost_pixels; /* 1 = a render op failed. Need screen refresh */
+
+        struct udl_fbdev *fbdev;
+        char mode_buf[1024];
+        uint32_t mode_buf_len;
+        atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */
+        atomic_t bytes_identical; /* saved effort with backbuffer comparison */
+        atomic_t bytes_sent; /* to usb, after compression including overhead */
+        atomic_t cpu_kcycles_used; /* transpired during pixel processing */
+};
+
+struct udl_gem_object {
+        struct drm_gem_object base;
+        struct page **pages;
+        void *vmapping;
+};
+
+#define to_udl_bo(x) container_of(x, struct udl_gem_object, base)
+
+struct udl_framebuffer {
+        struct drm_framebuffer base;
+        struct udl_gem_object *obj;
+        bool active_16; /* active on the 16-bit channel */
+};
+
+#define to_udl_fb(x) container_of(x, struct udl_framebuffer, base)
+
+/* modeset */
+int udl_modeset_init(struct drm_device *dev);
+void udl_modeset_cleanup(struct drm_device *dev);
+int udl_connector_init(struct drm_device *dev, struct drm_encoder *encoder);
+
+struct drm_encoder *udl_encoder_init(struct drm_device *dev);
+
+struct urb *udl_get_urb(struct drm_device *dev);
+
+int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len);
+void udl_urb_completion(struct urb *urb);
+
+int udl_driver_load(struct drm_device *dev, unsigned long flags);
+int udl_driver_unload(struct drm_device *dev);
+
+int udl_fbdev_init(struct drm_device *dev);
+void udl_fbdev_cleanup(struct drm_device *dev);
+void udl_fbdev_unplug(struct drm_device *dev);
+struct drm_framebuffer *
+udl_fb_user_fb_create(struct drm_device *dev,
+                      struct drm_file *file,
+                      struct drm_mode_fb_cmd2 *mode_cmd);
+
+int udl_render_hline(struct drm_device *dev, int bpp, struct urb **urb_ptr,
+                     const char *front, char **urb_buf_ptr,
+                     u32 byte_offset, u32 byte_width,
+                     int *ident_ptr, int *sent_ptr);
+
+int udl_dumb_create(struct drm_file *file_priv,
+                    struct drm_device *dev,
+                    struct drm_mode_create_dumb *args);
+int udl_gem_mmap(struct drm_file *file_priv, struct drm_device *dev,
+                 uint32_t handle, uint64_t *offset);
+int udl_dumb_destroy(struct drm_file *file_priv, struct drm_device *dev,
+                     uint32_t handle);
+
+int udl_gem_init_object(struct drm_gem_object *obj);
+void udl_gem_free_object(struct drm_gem_object *gem_obj);
+struct udl_gem_object *udl_gem_alloc_object(struct drm_device *dev,
+                                            size_t size);
+
+int udl_gem_vmap(struct udl_gem_object *obj);
+void udl_gem_vunmap(struct udl_gem_object *obj);
+int udl_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
+
+int udl_handle_damage(struct udl_framebuffer *fb, int x, int y,
+                      int width, int height);
+
+int udl_drop_usb(struct drm_device *dev);
+
+#define CMD_WRITE_RAW8   "\xAF\x60" /**< 8 bit raw write command. */
+#define CMD_WRITE_RL8    "\xAF\x61" /**< 8 bit run length command. */
+#define CMD_WRITE_COPY8  "\xAF\x62" /**< 8 bit copy command. */
+#define CMD_WRITE_RLX8   "\xAF\x63" /**< 8 bit extended run length command. */
+
+#define CMD_WRITE_RAW16  "\xAF\x68" /**< 16 bit raw write command. */
+#define CMD_WRITE_RL16   "\xAF\x69" /**< 16 bit run length command. */
+#define CMD_WRITE_COPY16 "\xAF\x6A" /**< 16 bit copy command. */
+#define CMD_WRITE_RLX16  "\xAF\x6B" /**< 16 bit extended run length command. */
+
+#endif