diff options
Diffstat (limited to 'gm12u320_drv.h')
| -rw-r--r-- | gm12u320_drv.h | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/gm12u320_drv.h b/gm12u320_drv.h new file mode 100644 index 0000000..f934e13 --- /dev/null +++ b/gm12u320_drv.h @@ -0,0 +1,123 @@ +/* + * Copyright (C) 2012-2015 Red Hat Inc. + * + * Based in parts on the udl code. Based in parts on the gm12u320 fb driver: + * Copyright (C) 2013 Viacheslav Nurmekhamitov <slavrn@yandex.ru> + * 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 GM12U320_DRV_H +#define GM12U320_DRV_H + +#include <linux/usb.h> +#include <linux/spinlock.h> +#include <drm/drm_gem.h> + +#define DRIVER_NAME "gm12u320" +#define DRIVER_DESC "Grain Media GM12U320 USB projector display" +#define DRIVER_DATE "20150107" + +#define DRIVER_MAJOR 0 +#define DRIVER_MINOR 0 +#define DRIVER_PATCHLEVEL 1 + +#define GM12U320_BO_CACHEABLE (1 << 0) +#define GM12U320_BO_WC (1 << 1) + +/* + * The DLP has an actual width of 854 pixels, but that is not a multiple + * of 4, breaking things left and right, so we export a width of 852. + */ +#define GM12U320_USER_WIDTH 852 +#define GM12U320_REAL_WIDTH 854 +#define GM12U320_HEIGHT 480 + +#define GM12U320_FRAME_COUNT 2 +#define GM12U320_BLOCK_COUNT 20 + +struct gm12u320_device; + +struct gm12u320_fbdev; + +struct gm12u320_device { + struct device *dev; + struct usb_device *udev; + struct drm_device *ddev; + struct gm12u320_fbdev *fbdev; + unsigned char *cmd_buf; + unsigned char *data_buf[GM12U320_FRAME_COUNT][GM12U320_BLOCK_COUNT]; + struct workqueue_struct *frame_workq; + struct work_struct frame_work; + wait_queue_head_t frame_waitq; + spinlock_t frame_lock; + int current_frame; + int next_frame; +}; + +struct gm12u320_gem_object { + struct drm_gem_object base; + struct page **pages; + void *vmapping; + struct sg_table *sg; + unsigned int flags; +}; + +#define to_gm12u320_bo(x) container_of(x, struct gm12u320_gem_object, base) + +struct gm12u320_framebuffer { + struct drm_framebuffer base; + struct gm12u320_gem_object *obj; +}; + +#define to_gm12u320_fb(x) container_of(x, struct gm12u320_framebuffer, base) + +/* modeset */ +int gm12u320_modeset_init(struct drm_device *dev); +void gm12u320_modeset_cleanup(struct drm_device *dev); +int gm12u320_connector_init(struct drm_device *dev, struct drm_encoder *encoder); + +struct drm_encoder *gm12u320_encoder_init(struct drm_device *dev); + +int gm12u320_driver_load(struct drm_device *dev, unsigned long flags); +int gm12u320_driver_unload(struct drm_device *dev); + +int gm12u320_fbdev_init(struct drm_device *dev); +void gm12u320_fbdev_cleanup(struct drm_device *dev); +void gm12u320_fbdev_unplug(struct drm_device *dev); +struct drm_framebuffer * +gm12u320_fb_user_fb_create(struct drm_device *dev, + struct drm_file *file, + struct drm_mode_fb_cmd2 *mode_cmd); + +int gm12u320_dumb_create(struct drm_file *file_priv, + struct drm_device *dev, + struct drm_mode_create_dumb *args); +int gm12u320_gem_mmap(struct drm_file *file_priv, struct drm_device *dev, + uint32_t handle, uint64_t *offset); + +void gm12u320_gem_free_object(struct drm_gem_object *gem_obj); +struct gm12u320_gem_object *gm12u320_gem_alloc_object(struct drm_device *dev, + size_t size); +struct dma_buf *gm12u320_gem_prime_export(struct drm_device *dev, + struct drm_gem_object *obj, int flags); +struct drm_gem_object *gm12u320_gem_prime_import(struct drm_device *dev, + struct dma_buf *dma_buf); + +int gm12u320_gem_get_pages(struct gm12u320_gem_object *obj); +void gm12u320_gem_put_pages(struct gm12u320_gem_object *obj); +int gm12u320_gem_vmap(struct gm12u320_gem_object *obj); +void gm12u320_gem_vunmap(struct gm12u320_gem_object *obj); +int gm12u320_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); +int gm12u320_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf); + +void gm12u320_update_frame(struct gm12u320_framebuffer *fb); +int gm12u320_handle_damage(struct gm12u320_framebuffer *fb, int x, int y, + int width, int height); + +#endif |