15320918bSDave Airlie /* 25320918bSDave Airlie * Copyright (C) 2012 Red Hat 35320918bSDave Airlie * 45320918bSDave Airlie * based in parts on udlfb.c: 55320918bSDave Airlie * Copyright (C) 2009 Roberto De Ioris <roberto@unbit.it> 65320918bSDave Airlie * Copyright (C) 2009 Jaya Kumar <jayakumar.lkml@gmail.com> 75320918bSDave Airlie * Copyright (C) 2009 Bernie Thompson <bernie@plugable.com> 85320918bSDave Airlie * 95320918bSDave Airlie * This file is subject to the terms and conditions of the GNU General Public 105320918bSDave Airlie * License v2. See the file COPYING in the main directory of this archive for 115320918bSDave Airlie * more details. 125320918bSDave Airlie */ 135320918bSDave Airlie 145320918bSDave Airlie #ifndef UDL_DRV_H 155320918bSDave Airlie #define UDL_DRV_H 165320918bSDave Airlie 175320918bSDave Airlie #include <linux/usb.h> 18d9fc9413SDaniel Vetter #include <drm/drm_gem.h> 195320918bSDave Airlie 205320918bSDave Airlie #define DRIVER_NAME "udl" 215320918bSDave Airlie #define DRIVER_DESC "DisplayLink" 225320918bSDave Airlie #define DRIVER_DATE "20120220" 235320918bSDave Airlie 245320918bSDave Airlie #define DRIVER_MAJOR 0 255320918bSDave Airlie #define DRIVER_MINOR 0 265320918bSDave Airlie #define DRIVER_PATCHLEVEL 1 275320918bSDave Airlie 2809a58da0SHaixia Shi #define UDL_BO_CACHEABLE (1 << 0) 2909a58da0SHaixia Shi #define UDL_BO_WC (1 << 1) 3009a58da0SHaixia Shi 315320918bSDave Airlie struct udl_device; 325320918bSDave Airlie 335320918bSDave Airlie struct urb_node { 345320918bSDave Airlie struct list_head entry; 355320918bSDave Airlie struct udl_device *dev; 365320918bSDave Airlie struct delayed_work release_urb_work; 375320918bSDave Airlie struct urb *urb; 385320918bSDave Airlie }; 395320918bSDave Airlie 405320918bSDave Airlie struct urb_list { 415320918bSDave Airlie struct list_head list; 425320918bSDave Airlie spinlock_t lock; 435320918bSDave Airlie struct semaphore limit_sem; 445320918bSDave Airlie int available; 455320918bSDave Airlie int count; 465320918bSDave Airlie size_t size; 475320918bSDave Airlie }; 485320918bSDave Airlie 495320918bSDave Airlie struct udl_fbdev; 505320918bSDave Airlie 515320918bSDave Airlie struct udl_device { 525320918bSDave Airlie struct device *dev; 535320918bSDave Airlie struct drm_device *ddev; 54d4f68a75SDavid Herrmann struct usb_device *udev; 555320918bSDave Airlie 565320918bSDave Airlie int sku_pixel_limit; 575320918bSDave Airlie 585320918bSDave Airlie struct urb_list urbs; 595320918bSDave Airlie atomic_t lost_pixels; /* 1 = a render op failed. Need screen refresh */ 605320918bSDave Airlie 615320918bSDave Airlie struct udl_fbdev *fbdev; 625320918bSDave Airlie char mode_buf[1024]; 635320918bSDave Airlie uint32_t mode_buf_len; 645320918bSDave Airlie atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */ 655320918bSDave Airlie atomic_t bytes_identical; /* saved effort with backbuffer comparison */ 665320918bSDave Airlie atomic_t bytes_sent; /* to usb, after compression including overhead */ 675320918bSDave Airlie atomic_t cpu_kcycles_used; /* transpired during pixel processing */ 685320918bSDave Airlie }; 695320918bSDave Airlie 705320918bSDave Airlie struct udl_gem_object { 715320918bSDave Airlie struct drm_gem_object base; 725320918bSDave Airlie struct page **pages; 735320918bSDave Airlie void *vmapping; 7496503f59SDave Airlie struct sg_table *sg; 7509a58da0SHaixia Shi unsigned int flags; 765320918bSDave Airlie }; 775320918bSDave Airlie 785320918bSDave Airlie #define to_udl_bo(x) container_of(x, struct udl_gem_object, base) 795320918bSDave Airlie 805320918bSDave Airlie struct udl_framebuffer { 815320918bSDave Airlie struct drm_framebuffer base; 825320918bSDave Airlie struct udl_gem_object *obj; 835320918bSDave Airlie bool active_16; /* active on the 16-bit channel */ 84bcb39af4SDave Airlie int x1, y1, x2, y2; /* dirty rect */ 85bcb39af4SDave Airlie spinlock_t dirty_lock; 865320918bSDave Airlie }; 875320918bSDave Airlie 885320918bSDave Airlie #define to_udl_fb(x) container_of(x, struct udl_framebuffer, base) 895320918bSDave Airlie 905320918bSDave Airlie /* modeset */ 915320918bSDave Airlie int udl_modeset_init(struct drm_device *dev); 925320918bSDave Airlie void udl_modeset_cleanup(struct drm_device *dev); 935320918bSDave Airlie int udl_connector_init(struct drm_device *dev, struct drm_encoder *encoder); 945320918bSDave Airlie 955320918bSDave Airlie struct drm_encoder *udl_encoder_init(struct drm_device *dev); 965320918bSDave Airlie 975320918bSDave Airlie struct urb *udl_get_urb(struct drm_device *dev); 985320918bSDave Airlie 995320918bSDave Airlie int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len); 1005320918bSDave Airlie void udl_urb_completion(struct urb *urb); 1015320918bSDave Airlie 1025320918bSDave Airlie int udl_driver_load(struct drm_device *dev, unsigned long flags); 1035320918bSDave Airlie int udl_driver_unload(struct drm_device *dev); 1045320918bSDave Airlie 1055320918bSDave Airlie int udl_fbdev_init(struct drm_device *dev); 1065320918bSDave Airlie void udl_fbdev_cleanup(struct drm_device *dev); 1075320918bSDave Airlie void udl_fbdev_unplug(struct drm_device *dev); 1085320918bSDave Airlie struct drm_framebuffer * 1095320918bSDave Airlie udl_fb_user_fb_create(struct drm_device *dev, 1105320918bSDave Airlie struct drm_file *file, 1115320918bSDave Airlie struct drm_mode_fb_cmd2 *mode_cmd); 1125320918bSDave Airlie 1135320918bSDave Airlie int udl_render_hline(struct drm_device *dev, int bpp, struct urb **urb_ptr, 1145320918bSDave Airlie const char *front, char **urb_buf_ptr, 1153916e1d7SDave Airlie u32 byte_offset, u32 device_byte_offset, u32 byte_width, 1165320918bSDave Airlie int *ident_ptr, int *sent_ptr); 1175320918bSDave Airlie 1185320918bSDave Airlie int udl_dumb_create(struct drm_file *file_priv, 1195320918bSDave Airlie struct drm_device *dev, 1205320918bSDave Airlie struct drm_mode_create_dumb *args); 1215320918bSDave Airlie int udl_gem_mmap(struct drm_file *file_priv, struct drm_device *dev, 1225320918bSDave Airlie uint32_t handle, uint64_t *offset); 1235320918bSDave Airlie 1245320918bSDave Airlie void udl_gem_free_object(struct drm_gem_object *gem_obj); 1255320918bSDave Airlie struct udl_gem_object *udl_gem_alloc_object(struct drm_device *dev, 1265320918bSDave Airlie size_t size); 12796503f59SDave Airlie struct drm_gem_object *udl_gem_prime_import(struct drm_device *dev, 12896503f59SDave Airlie struct dma_buf *dma_buf); 1295320918bSDave Airlie 1305320918bSDave Airlie int udl_gem_vmap(struct udl_gem_object *obj); 1315320918bSDave Airlie void udl_gem_vunmap(struct udl_gem_object *obj); 132fa9e8550SKonstantin Khlebnikov int udl_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); 1335320918bSDave Airlie int udl_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf); 1345320918bSDave Airlie 1355320918bSDave Airlie int udl_handle_damage(struct udl_framebuffer *fb, int x, int y, 1365320918bSDave Airlie int width, int height); 1375320918bSDave Airlie 1385320918bSDave Airlie int udl_drop_usb(struct drm_device *dev); 1395320918bSDave Airlie 1405320918bSDave Airlie #define CMD_WRITE_RAW8 "\xAF\x60" /**< 8 bit raw write command. */ 1415320918bSDave Airlie #define CMD_WRITE_RL8 "\xAF\x61" /**< 8 bit run length command. */ 1425320918bSDave Airlie #define CMD_WRITE_COPY8 "\xAF\x62" /**< 8 bit copy command. */ 1435320918bSDave Airlie #define CMD_WRITE_RLX8 "\xAF\x63" /**< 8 bit extended run length command. */ 1445320918bSDave Airlie 1455320918bSDave Airlie #define CMD_WRITE_RAW16 "\xAF\x68" /**< 16 bit raw write command. */ 1465320918bSDave Airlie #define CMD_WRITE_RL16 "\xAF\x69" /**< 16 bit run length command. */ 1475320918bSDave Airlie #define CMD_WRITE_COPY16 "\xAF\x6A" /**< 16 bit copy command. */ 1485320918bSDave Airlie #define CMD_WRITE_RLX16 "\xAF\x6B" /**< 16 bit extended run length command. */ 1495320918bSDave Airlie 1505320918bSDave Airlie #endif 151