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> 185320918bSDave Airlie 195320918bSDave Airlie #define DRIVER_NAME "udl" 205320918bSDave Airlie #define DRIVER_DESC "DisplayLink" 215320918bSDave Airlie #define DRIVER_DATE "20120220" 225320918bSDave Airlie 235320918bSDave Airlie #define DRIVER_MAJOR 0 245320918bSDave Airlie #define DRIVER_MINOR 0 255320918bSDave Airlie #define DRIVER_PATCHLEVEL 1 265320918bSDave Airlie 275320918bSDave Airlie struct udl_device; 285320918bSDave Airlie 295320918bSDave Airlie struct urb_node { 305320918bSDave Airlie struct list_head entry; 315320918bSDave Airlie struct udl_device *dev; 325320918bSDave Airlie struct delayed_work release_urb_work; 335320918bSDave Airlie struct urb *urb; 345320918bSDave Airlie }; 355320918bSDave Airlie 365320918bSDave Airlie struct urb_list { 375320918bSDave Airlie struct list_head list; 385320918bSDave Airlie spinlock_t lock; 395320918bSDave Airlie struct semaphore limit_sem; 405320918bSDave Airlie int available; 415320918bSDave Airlie int count; 425320918bSDave Airlie size_t size; 435320918bSDave Airlie }; 445320918bSDave Airlie 455320918bSDave Airlie struct udl_fbdev; 465320918bSDave Airlie 475320918bSDave Airlie struct udl_device { 485320918bSDave Airlie struct device *dev; 495320918bSDave Airlie struct drm_device *ddev; 505320918bSDave Airlie 515320918bSDave Airlie int sku_pixel_limit; 525320918bSDave Airlie 535320918bSDave Airlie struct urb_list urbs; 545320918bSDave Airlie atomic_t lost_pixels; /* 1 = a render op failed. Need screen refresh */ 555320918bSDave Airlie 565320918bSDave Airlie struct udl_fbdev *fbdev; 575320918bSDave Airlie char mode_buf[1024]; 585320918bSDave Airlie uint32_t mode_buf_len; 595320918bSDave Airlie atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */ 605320918bSDave Airlie atomic_t bytes_identical; /* saved effort with backbuffer comparison */ 615320918bSDave Airlie atomic_t bytes_sent; /* to usb, after compression including overhead */ 625320918bSDave Airlie atomic_t cpu_kcycles_used; /* transpired during pixel processing */ 635320918bSDave Airlie }; 645320918bSDave Airlie 655320918bSDave Airlie struct udl_gem_object { 665320918bSDave Airlie struct drm_gem_object base; 675320918bSDave Airlie struct page **pages; 685320918bSDave Airlie void *vmapping; 6996503f59SDave Airlie struct sg_table *sg; 705320918bSDave Airlie }; 715320918bSDave Airlie 725320918bSDave Airlie #define to_udl_bo(x) container_of(x, struct udl_gem_object, base) 735320918bSDave Airlie 745320918bSDave Airlie struct udl_framebuffer { 755320918bSDave Airlie struct drm_framebuffer base; 765320918bSDave Airlie struct udl_gem_object *obj; 775320918bSDave Airlie bool active_16; /* active on the 16-bit channel */ 785320918bSDave Airlie }; 795320918bSDave Airlie 805320918bSDave Airlie #define to_udl_fb(x) container_of(x, struct udl_framebuffer, base) 815320918bSDave Airlie 825320918bSDave Airlie /* modeset */ 835320918bSDave Airlie int udl_modeset_init(struct drm_device *dev); 845320918bSDave Airlie void udl_modeset_cleanup(struct drm_device *dev); 855320918bSDave Airlie int udl_connector_init(struct drm_device *dev, struct drm_encoder *encoder); 865320918bSDave Airlie 875320918bSDave Airlie struct drm_encoder *udl_encoder_init(struct drm_device *dev); 885320918bSDave Airlie 895320918bSDave Airlie struct urb *udl_get_urb(struct drm_device *dev); 905320918bSDave Airlie 915320918bSDave Airlie int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len); 925320918bSDave Airlie void udl_urb_completion(struct urb *urb); 935320918bSDave Airlie 945320918bSDave Airlie int udl_driver_load(struct drm_device *dev, unsigned long flags); 955320918bSDave Airlie int udl_driver_unload(struct drm_device *dev); 965320918bSDave Airlie 975320918bSDave Airlie int udl_fbdev_init(struct drm_device *dev); 985320918bSDave Airlie void udl_fbdev_cleanup(struct drm_device *dev); 995320918bSDave Airlie void udl_fbdev_unplug(struct drm_device *dev); 1005320918bSDave Airlie struct drm_framebuffer * 1015320918bSDave Airlie udl_fb_user_fb_create(struct drm_device *dev, 1025320918bSDave Airlie struct drm_file *file, 1035320918bSDave Airlie struct drm_mode_fb_cmd2 *mode_cmd); 1045320918bSDave Airlie 1055320918bSDave Airlie int udl_render_hline(struct drm_device *dev, int bpp, struct urb **urb_ptr, 1065320918bSDave Airlie const char *front, char **urb_buf_ptr, 1073916e1d7SDave Airlie u32 byte_offset, u32 device_byte_offset, u32 byte_width, 1085320918bSDave Airlie int *ident_ptr, int *sent_ptr); 1095320918bSDave Airlie 1105320918bSDave Airlie int udl_dumb_create(struct drm_file *file_priv, 1115320918bSDave Airlie struct drm_device *dev, 1125320918bSDave Airlie struct drm_mode_create_dumb *args); 1135320918bSDave Airlie int udl_gem_mmap(struct drm_file *file_priv, struct drm_device *dev, 1145320918bSDave Airlie uint32_t handle, uint64_t *offset); 1155320918bSDave Airlie int udl_dumb_destroy(struct drm_file *file_priv, struct drm_device *dev, 1165320918bSDave Airlie uint32_t handle); 1175320918bSDave Airlie 1185320918bSDave Airlie int udl_gem_init_object(struct drm_gem_object *obj); 1195320918bSDave Airlie void udl_gem_free_object(struct drm_gem_object *gem_obj); 1205320918bSDave Airlie struct udl_gem_object *udl_gem_alloc_object(struct drm_device *dev, 1215320918bSDave Airlie size_t size); 12296503f59SDave Airlie struct drm_gem_object *udl_gem_prime_import(struct drm_device *dev, 12396503f59SDave Airlie struct dma_buf *dma_buf); 1245320918bSDave Airlie 1255320918bSDave Airlie int udl_gem_vmap(struct udl_gem_object *obj); 1265320918bSDave Airlie void udl_gem_vunmap(struct udl_gem_object *obj); 127fa9e8550SKonstantin Khlebnikov int udl_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); 1285320918bSDave Airlie int udl_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf); 1295320918bSDave Airlie 1305320918bSDave Airlie int udl_handle_damage(struct udl_framebuffer *fb, int x, int y, 1315320918bSDave Airlie int width, int height); 1325320918bSDave Airlie 1335320918bSDave Airlie int udl_drop_usb(struct drm_device *dev); 1345320918bSDave Airlie 1355320918bSDave Airlie #define CMD_WRITE_RAW8 "\xAF\x60" /**< 8 bit raw write command. */ 1365320918bSDave Airlie #define CMD_WRITE_RL8 "\xAF\x61" /**< 8 bit run length command. */ 1375320918bSDave Airlie #define CMD_WRITE_COPY8 "\xAF\x62" /**< 8 bit copy command. */ 1385320918bSDave Airlie #define CMD_WRITE_RLX8 "\xAF\x63" /**< 8 bit extended run length command. */ 1395320918bSDave Airlie 1405320918bSDave Airlie #define CMD_WRITE_RAW16 "\xAF\x68" /**< 16 bit raw write command. */ 1415320918bSDave Airlie #define CMD_WRITE_RL16 "\xAF\x69" /**< 16 bit run length command. */ 1425320918bSDave Airlie #define CMD_WRITE_COPY16 "\xAF\x6A" /**< 16 bit copy command. */ 1435320918bSDave Airlie #define CMD_WRITE_RLX16 "\xAF\x6B" /**< 16 bit extended run length command. */ 1445320918bSDave Airlie 1455320918bSDave Airlie #endif 146