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> 193c5f134aSSouptick Joarder #include <linux/mm_types.h> 205320918bSDave Airlie 215320918bSDave Airlie #define DRIVER_NAME "udl" 225320918bSDave Airlie #define DRIVER_DESC "DisplayLink" 235320918bSDave Airlie #define DRIVER_DATE "20120220" 245320918bSDave Airlie 255320918bSDave Airlie #define DRIVER_MAJOR 0 265320918bSDave Airlie #define DRIVER_MINOR 0 275320918bSDave Airlie #define DRIVER_PATCHLEVEL 1 285320918bSDave Airlie 2909a58da0SHaixia Shi #define UDL_BO_CACHEABLE (1 << 0) 3009a58da0SHaixia Shi #define UDL_BO_WC (1 << 1) 3109a58da0SHaixia Shi 325320918bSDave Airlie struct udl_device; 335320918bSDave Airlie 345320918bSDave Airlie struct urb_node { 355320918bSDave Airlie struct list_head entry; 365320918bSDave Airlie struct udl_device *dev; 375320918bSDave Airlie struct delayed_work release_urb_work; 385320918bSDave Airlie struct urb *urb; 395320918bSDave Airlie }; 405320918bSDave Airlie 415320918bSDave Airlie struct urb_list { 425320918bSDave Airlie struct list_head list; 435320918bSDave Airlie spinlock_t lock; 445320918bSDave Airlie struct semaphore limit_sem; 455320918bSDave Airlie int available; 465320918bSDave Airlie int count; 475320918bSDave Airlie size_t size; 485320918bSDave Airlie }; 495320918bSDave Airlie 505320918bSDave Airlie struct udl_fbdev; 515320918bSDave Airlie 525320918bSDave Airlie struct udl_device { 536ecac85eSDave Airlie struct drm_device drm; 545320918bSDave Airlie struct device *dev; 55d4f68a75SDavid Herrmann struct usb_device *udev; 56737ba109SHaixia Shi struct drm_crtc *crtc; 575320918bSDave Airlie 58ae358dacSDaniel Vetter struct mutex gem_lock; 59ae358dacSDaniel Vetter 605320918bSDave Airlie int sku_pixel_limit; 615320918bSDave Airlie 625320918bSDave Airlie struct urb_list urbs; 635320918bSDave Airlie atomic_t lost_pixels; /* 1 = a render op failed. Need screen refresh */ 645320918bSDave Airlie 655320918bSDave Airlie struct udl_fbdev *fbdev; 665320918bSDave Airlie char mode_buf[1024]; 675320918bSDave Airlie uint32_t mode_buf_len; 685320918bSDave Airlie atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */ 695320918bSDave Airlie atomic_t bytes_identical; /* saved effort with backbuffer comparison */ 705320918bSDave Airlie atomic_t bytes_sent; /* to usb, after compression including overhead */ 715320918bSDave Airlie atomic_t cpu_kcycles_used; /* transpired during pixel processing */ 725320918bSDave Airlie }; 735320918bSDave Airlie 746ecac85eSDave Airlie #define to_udl(x) container_of(x, struct udl_device, drm) 75fd96e0dbSDave Airlie 765320918bSDave Airlie struct udl_gem_object { 775320918bSDave Airlie struct drm_gem_object base; 785320918bSDave Airlie struct page **pages; 795320918bSDave Airlie void *vmapping; 8096503f59SDave Airlie struct sg_table *sg; 8109a58da0SHaixia Shi unsigned int flags; 825320918bSDave Airlie }; 835320918bSDave Airlie 845320918bSDave Airlie #define to_udl_bo(x) container_of(x, struct udl_gem_object, base) 855320918bSDave Airlie 865320918bSDave Airlie struct udl_framebuffer { 875320918bSDave Airlie struct drm_framebuffer base; 885320918bSDave Airlie struct udl_gem_object *obj; 895320918bSDave Airlie bool active_16; /* active on the 16-bit channel */ 905320918bSDave Airlie }; 915320918bSDave Airlie 925320918bSDave Airlie #define to_udl_fb(x) container_of(x, struct udl_framebuffer, base) 935320918bSDave Airlie 945320918bSDave Airlie /* modeset */ 955320918bSDave Airlie int udl_modeset_init(struct drm_device *dev); 96737ba109SHaixia Shi void udl_modeset_restore(struct drm_device *dev); 975320918bSDave Airlie void udl_modeset_cleanup(struct drm_device *dev); 985320918bSDave Airlie int udl_connector_init(struct drm_device *dev, struct drm_encoder *encoder); 995320918bSDave Airlie 1005320918bSDave Airlie struct drm_encoder *udl_encoder_init(struct drm_device *dev); 1015320918bSDave Airlie 1025320918bSDave Airlie struct urb *udl_get_urb(struct drm_device *dev); 1035320918bSDave Airlie 1045320918bSDave Airlie int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len); 1055320918bSDave Airlie void udl_urb_completion(struct urb *urb); 1065320918bSDave Airlie 1076ecac85eSDave Airlie int udl_init(struct udl_device *udl); 1086ecac85eSDave Airlie void udl_fini(struct drm_device *dev); 1095320918bSDave Airlie 1105320918bSDave Airlie int udl_fbdev_init(struct drm_device *dev); 1115320918bSDave Airlie void udl_fbdev_cleanup(struct drm_device *dev); 1125320918bSDave Airlie void udl_fbdev_unplug(struct drm_device *dev); 1135320918bSDave Airlie struct drm_framebuffer * 1145320918bSDave Airlie udl_fb_user_fb_create(struct drm_device *dev, 1155320918bSDave Airlie struct drm_file *file, 1161eb83451SVille Syrjälä const struct drm_mode_fb_cmd2 *mode_cmd); 1175320918bSDave Airlie 11891ba11fbSMikulas Patocka int udl_render_hline(struct drm_device *dev, int log_bpp, struct urb **urb_ptr, 1195320918bSDave Airlie const char *front, char **urb_buf_ptr, 1203916e1d7SDave Airlie u32 byte_offset, u32 device_byte_offset, u32 byte_width, 1215320918bSDave Airlie int *ident_ptr, int *sent_ptr); 1225320918bSDave Airlie 1235320918bSDave Airlie int udl_dumb_create(struct drm_file *file_priv, 1245320918bSDave Airlie struct drm_device *dev, 1255320918bSDave Airlie struct drm_mode_create_dumb *args); 1265320918bSDave Airlie int udl_gem_mmap(struct drm_file *file_priv, struct drm_device *dev, 1275320918bSDave Airlie uint32_t handle, uint64_t *offset); 1285320918bSDave Airlie 1295320918bSDave Airlie void udl_gem_free_object(struct drm_gem_object *gem_obj); 1305320918bSDave Airlie struct udl_gem_object *udl_gem_alloc_object(struct drm_device *dev, 1315320918bSDave Airlie size_t size); 132ebfdd6d5SHaixia Shi struct dma_buf *udl_gem_prime_export(struct drm_device *dev, 133ebfdd6d5SHaixia Shi struct drm_gem_object *obj, int flags); 13496503f59SDave Airlie struct drm_gem_object *udl_gem_prime_import(struct drm_device *dev, 13596503f59SDave Airlie struct dma_buf *dma_buf); 1365320918bSDave Airlie 1374bc158e0SHaixia Shi int udl_gem_get_pages(struct udl_gem_object *obj); 1384bc158e0SHaixia Shi void udl_gem_put_pages(struct udl_gem_object *obj); 1395320918bSDave Airlie int udl_gem_vmap(struct udl_gem_object *obj); 1405320918bSDave Airlie void udl_gem_vunmap(struct udl_gem_object *obj); 141fa9e8550SKonstantin Khlebnikov int udl_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); 1423c5f134aSSouptick Joarder vm_fault_t udl_gem_fault(struct vm_fault *vmf); 1435320918bSDave Airlie 1445320918bSDave Airlie int udl_handle_damage(struct udl_framebuffer *fb, int x, int y, 1455320918bSDave Airlie int width, int height); 1465320918bSDave Airlie 1475320918bSDave Airlie int udl_drop_usb(struct drm_device *dev); 1485320918bSDave Airlie 1495320918bSDave Airlie #define CMD_WRITE_RAW8 "\xAF\x60" /**< 8 bit raw write command. */ 1505320918bSDave Airlie #define CMD_WRITE_RL8 "\xAF\x61" /**< 8 bit run length command. */ 1515320918bSDave Airlie #define CMD_WRITE_COPY8 "\xAF\x62" /**< 8 bit copy command. */ 1525320918bSDave Airlie #define CMD_WRITE_RLX8 "\xAF\x63" /**< 8 bit extended run length command. */ 1535320918bSDave Airlie 1545320918bSDave Airlie #define CMD_WRITE_RAW16 "\xAF\x68" /**< 16 bit raw write command. */ 1555320918bSDave Airlie #define CMD_WRITE_RL16 "\xAF\x69" /**< 16 bit run length command. */ 1565320918bSDave Airlie #define CMD_WRITE_COPY16 "\xAF\x6A" /**< 16 bit copy command. */ 1575320918bSDave Airlie #define CMD_WRITE_RLX16 "\xAF\x6B" /**< 16 bit extended run length command. */ 1585320918bSDave Airlie 1595320918bSDave Airlie #endif 160