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/*
* 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_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_BLOCK_COUNT];
struct {
bool run;
struct workqueue_struct *workq;
struct work_struct work;
wait_queue_head_t waitq;
spinlock_t lock;
struct gm12u320_framebuffer *fb;
int x1;
int x2;
int y1;
int y2;
} fb_update;
};
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_fb_mark_dirty(struct gm12u320_framebuffer *fb,
int x1, int x2, int y1, int y2);
void gm12u320_start_fb_update(struct drm_device *dev);
void gm12u320_stop_fb_update(struct drm_device *dev);
int gm12u320_set_ecomode(struct drm_device *dev);
#endif
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