| /* |
| * 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> |
| #include <drm/drm_gem.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 |
| |
| #define UDL_BO_CACHEABLE (1 << 0) |
| #define UDL_BO_WC (1 << 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; |
| struct usb_device *udev; |
| struct drm_crtc *crtc; |
| |
| struct mutex gem_lock; |
| |
| 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; |
| struct sg_table *sg; |
| unsigned int flags; |
| }; |
| |
| #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_restore(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); |
| void 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, |
| const 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 device_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); |
| |
| 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); |
| struct dma_buf *udl_gem_prime_export(struct drm_device *dev, |
| struct drm_gem_object *obj, int flags); |
| struct drm_gem_object *udl_gem_prime_import(struct drm_device *dev, |
| struct dma_buf *dma_buf); |
| |
| int udl_gem_get_pages(struct udl_gem_object *obj); |
| void udl_gem_put_pages(struct udl_gem_object *obj); |
| int udl_gem_vmap(struct udl_gem_object *obj); |
| void udl_gem_vunmap(struct udl_gem_object *obj); |
| int udl_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); |
| int udl_gem_fault(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 |