diff options
Diffstat (limited to 'drivers/gpu/drm/exynos_tmp/exynos_drm_fbdev.c')
-rw-r--r-- | drivers/gpu/drm/exynos_tmp/exynos_drm_fbdev.c | 318 |
1 files changed, 0 insertions, 318 deletions
diff --git a/drivers/gpu/drm/exynos_tmp/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos_tmp/exynos_drm_fbdev.c deleted file mode 100644 index d5586cc..0000000 --- a/drivers/gpu/drm/exynos_tmp/exynos_drm_fbdev.c +++ /dev/null @@ -1,318 +0,0 @@ -/* exynos_drm_fbdev.c - * - * Copyright (c) 2011 Samsung Electronics Co., Ltd. - * Authors: - * Inki Dae <inki.dae@samsung.com> - * Joonyoung Shim <jy0922.shim@samsung.com> - * Seung-Woo Kim <sw0312.kim@samsung.com> - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - */ - -#include "drmP.h" -#include "drm_crtc.h" -#include "drm_fb_helper.h" -#include "drm_crtc_helper.h" - -#include "exynos_drm_drv.h" -#include "exynos_drm_fb.h" -#include "exynos_drm_gem.h" - -#define MAX_CONNECTOR 4 -#define PREFERRED_BPP 32 - -#define to_exynos_fbdev(x) container_of(x, struct exynos_drm_fbdev,\ - drm_fb_helper) - -struct exynos_drm_fbdev { - struct drm_fb_helper drm_fb_helper; - struct exynos_drm_gem_obj *exynos_gem_obj; -}; - -static struct fb_ops exynos_drm_fb_ops = { - .owner = THIS_MODULE, - .fb_fillrect = cfb_fillrect, - .fb_copyarea = cfb_copyarea, - .fb_imageblit = cfb_imageblit, - .fb_check_var = drm_fb_helper_check_var, - .fb_set_par = drm_fb_helper_set_par, - .fb_blank = drm_fb_helper_blank, - .fb_pan_display = drm_fb_helper_pan_display, - .fb_setcmap = drm_fb_helper_setcmap, -}; - -static int exynos_drm_fbdev_update(struct drm_fb_helper *helper, - struct drm_framebuffer *fb) -{ - struct fb_info *fbi = helper->fbdev; - struct drm_device *dev = helper->dev; - struct exynos_drm_gem_buf *buffer; - unsigned int size = fb->width * fb->height * (fb->bits_per_pixel >> 3); - unsigned long offset; - - DRM_DEBUG_KMS("%s\n", __FILE__); - - drm_fb_helper_fill_fix(fbi, fb->pitches[0], fb->depth); - drm_fb_helper_fill_var(fbi, helper, fb->width, fb->height); - - /* RGB formats use only one buffer */ - buffer = exynos_drm_fb_buffer(fb, 0); - if (!buffer) { - DRM_LOG_KMS("buffer is null.\n"); - return -EFAULT; - } - - offset = fbi->var.xoffset * (fb->bits_per_pixel >> 3); - offset += fbi->var.yoffset * fb->pitches[0]; - - dev->mode_config.fb_base = (resource_size_t)buffer->dma_addr; - fbi->screen_base = buffer->kvaddr + offset; - fbi->fix.smem_start = (unsigned long)(buffer->dma_addr + offset); - fbi->screen_size = size; - fbi->fix.smem_len = size; - - return 0; -} - -static int exynos_drm_fbdev_create(struct drm_fb_helper *helper, - struct drm_fb_helper_surface_size *sizes) -{ - struct exynos_drm_fbdev *exynos_fbdev = to_exynos_fbdev(helper); - struct exynos_drm_gem_obj *exynos_gem_obj; - struct drm_device *dev = helper->dev; - struct fb_info *fbi; - struct drm_mode_fb_cmd2 mode_cmd = { 0 }; - struct platform_device *pdev = dev->platformdev; - unsigned long size; - int ret; - - DRM_DEBUG_KMS("%s\n", __FILE__); - - DRM_DEBUG_KMS("surface width(%d), height(%d) and bpp(%d\n", - sizes->surface_width, sizes->surface_height, - sizes->surface_bpp); - - mode_cmd.width = sizes->surface_width; - mode_cmd.height = sizes->surface_height; - mode_cmd.pitches[0] = sizes->surface_width * (sizes->surface_bpp >> 3); - mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, - sizes->surface_depth); - - mutex_lock(&dev->struct_mutex); - - fbi = framebuffer_alloc(0, &pdev->dev); - if (!fbi) { - DRM_ERROR("failed to allocate fb info.\n"); - ret = -ENOMEM; - goto out; - } - - size = mode_cmd.pitches[0] * mode_cmd.height; - - /* 0 means to allocate physically continuous memory */ - exynos_gem_obj = exynos_drm_gem_create(dev, 0, size); - if (IS_ERR(exynos_gem_obj)) { - ret = PTR_ERR(exynos_gem_obj); - goto out; - } - - exynos_fbdev->exynos_gem_obj = exynos_gem_obj; - - helper->fb = exynos_drm_framebuffer_init(dev, &mode_cmd, - &exynos_gem_obj->base); - if (IS_ERR_OR_NULL(helper->fb)) { - DRM_ERROR("failed to create drm framebuffer.\n"); - ret = PTR_ERR(helper->fb); - goto out; - } - - helper->fbdev = fbi; - - fbi->par = helper; - fbi->flags = FBINFO_FLAG_DEFAULT; - fbi->fbops = &exynos_drm_fb_ops; - - ret = fb_alloc_cmap(&fbi->cmap, 256, 0); - if (ret) { - DRM_ERROR("failed to allocate cmap.\n"); - goto out; - } - - ret = exynos_drm_fbdev_update(helper, helper->fb); - if (ret < 0) { - fb_dealloc_cmap(&fbi->cmap); - goto out; - } - -/* - * if failed, all resources allocated above would be released by - * drm_mode_config_cleanup() when drm_load() had been called prior - * to any specific driver such as fimd or hdmi driver. - */ -out: - mutex_unlock(&dev->struct_mutex); - return ret; -} - -static int exynos_drm_fbdev_probe(struct drm_fb_helper *helper, - struct drm_fb_helper_surface_size *sizes) -{ - int ret = 0; - - DRM_DEBUG_KMS("%s\n", __FILE__); - - /* - * with !helper->fb, it means that this funcion is called first time - * and after that, the helper->fb would be used as clone mode. - */ - if (!helper->fb) { - ret = exynos_drm_fbdev_create(helper, sizes); - if (ret < 0) { - DRM_ERROR("failed to create fbdev.\n"); - return ret; - } - - /* - * fb_helper expects a value more than 1 if succeed - * because register_framebuffer() should be called. - */ - ret = 1; - } - - return ret; -} - -static struct drm_fb_helper_funcs exynos_drm_fb_helper_funcs = { - .fb_probe = exynos_drm_fbdev_probe, -}; - -int exynos_drm_fbdev_init(struct drm_device *dev) -{ - struct exynos_drm_fbdev *fbdev; - struct exynos_drm_private *private = dev->dev_private; - struct drm_fb_helper *helper; - unsigned int num_crtc; - int ret; - - DRM_DEBUG_KMS("%s\n", __FILE__); - - if (!dev->mode_config.num_crtc || !dev->mode_config.num_connector) - return 0; - - fbdev = kzalloc(sizeof(*fbdev), GFP_KERNEL); - if (!fbdev) { - DRM_ERROR("failed to allocate drm fbdev.\n"); - return -ENOMEM; - } - - private->fb_helper = helper = &fbdev->drm_fb_helper; - helper->funcs = &exynos_drm_fb_helper_funcs; - - num_crtc = dev->mode_config.num_crtc; - - ret = drm_fb_helper_init(dev, helper, num_crtc, MAX_CONNECTOR); - if (ret < 0) { - DRM_ERROR("failed to initialize drm fb helper.\n"); - goto err_init; - } - - ret = drm_fb_helper_single_add_all_connectors(helper); - if (ret < 0) { - DRM_ERROR("failed to register drm_fb_helper_connector.\n"); - goto err_setup; - - } - - ret = drm_fb_helper_initial_config(helper, PREFERRED_BPP); - if (ret < 0) { - DRM_ERROR("failed to set up hw configuration.\n"); - goto err_setup; - } - - return 0; - -err_setup: - drm_fb_helper_fini(helper); - -err_init: - private->fb_helper = NULL; - kfree(fbdev); - - return ret; -} - -static void exynos_drm_fbdev_destroy(struct drm_device *dev, - struct drm_fb_helper *fb_helper) -{ - struct drm_framebuffer *fb; - - /* release drm framebuffer and real buffer */ - if (fb_helper->fb && fb_helper->fb->funcs) { - fb = fb_helper->fb; - if (fb && fb->funcs->destroy) - fb->funcs->destroy(fb); - } - - /* release linux framebuffer */ - if (fb_helper->fbdev) { - struct fb_info *info; - int ret; - - info = fb_helper->fbdev; - ret = unregister_framebuffer(info); - if (ret < 0) - DRM_DEBUG_KMS("failed unregister_framebuffer()\n"); - - if (info->cmap.len) - fb_dealloc_cmap(&info->cmap); - - framebuffer_release(info); - } - - drm_fb_helper_fini(fb_helper); -} - -void exynos_drm_fbdev_fini(struct drm_device *dev) -{ - struct exynos_drm_private *private = dev->dev_private; - struct exynos_drm_fbdev *fbdev; - - if (!private || !private->fb_helper) - return; - - fbdev = to_exynos_fbdev(private->fb_helper); - - if (fbdev->exynos_gem_obj) - exynos_drm_gem_destroy(fbdev->exynos_gem_obj); - - exynos_drm_fbdev_destroy(dev, private->fb_helper); - kfree(fbdev); - private->fb_helper = NULL; -} - -void exynos_drm_fbdev_restore_mode(struct drm_device *dev) -{ - struct exynos_drm_private *private = dev->dev_private; - - if (!private || !private->fb_helper) - return; - - drm_fb_helper_restore_fbdev_mode(private->fb_helper); -} |