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path: root/drivers/gpu/drm/exynos_tmp/exynos_drm_fbdev.c
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Diffstat (limited to 'drivers/gpu/drm/exynos_tmp/exynos_drm_fbdev.c')
-rw-r--r--drivers/gpu/drm/exynos_tmp/exynos_drm_fbdev.c318
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);
-}