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Diffstat (limited to 'linux-core/drm_fb.c')
-rw-r--r--linux-core/drm_fb.c432
1 files changed, 0 insertions, 432 deletions
diff --git a/linux-core/drm_fb.c b/linux-core/drm_fb.c
deleted file mode 100644
index 74a4394a..00000000
--- a/linux-core/drm_fb.c
+++ /dev/null
@@ -1,432 +0,0 @@
-/*
- * Copyright © 2007 David Airlie
- *
- * 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
- * THE AUTHORS OR COPYRIGHT HOLDERS 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.
- *
- * Authors:
- * David Airlie
- */
- /*
- * Modularization
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/tty.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-
-#include "drmP.h"
-#include "drm_crtc.h"
-
-struct drmfb_par {
- struct drm_device *dev;
- struct drm_crtc *crtc;
-};
-
-static int drmfb_setcolreg(unsigned regno, unsigned red, unsigned green,
- unsigned blue, unsigned transp,
- struct fb_info *info)
-{
- struct drmfb_par *par = info->par;
- struct drm_framebuffer *fb = par->crtc->fb;
- struct drm_crtc *crtc = par->crtc;
-
- if (regno > 255)
- return 1;
-
- if (fb->depth == 8) {
- return 0;
- }
-
- if (regno < 16) {
- switch (fb->depth) {
- case 15:
- fb->pseudo_palette[regno] = ((red & 0xf800) >> 1) |
- ((green & 0xf800) >> 6) |
- ((blue & 0xf800) >> 11);
- break;
- case 16:
- fb->pseudo_palette[regno] = (red & 0xf800) |
- ((green & 0xfc00) >> 5) |
- ((blue & 0xf800) >> 11);
- break;
- case 24:
- case 32:
- fb->pseudo_palette[regno] = ((red & 0xff00) << 8) |
- (green & 0xff00) |
- ((blue & 0xff00) >> 8);
- break;
- }
- }
-
- return 0;
-}
-
-static int drmfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
-{
- struct drmfb_par *par = info->par;
- struct drm_device *dev = par->dev;
- struct drm_framebuffer *fb = par->crtc->fb;
- struct drm_display_mode *drm_mode;
- struct drm_output *output;
- int depth;
-
- if (!var->pixclock)
- return -EINVAL;
-
- /* Need to resize the fb object !!! */
- if (var->xres > fb->width || var->yres > fb->height) {
- DRM_ERROR("Requested width/height is greater than current fb object %dx%d > %dx%d\n",var->xres,var->yres,fb->width,fb->height);
- DRM_ERROR("Need resizing code.\n");
- return -EINVAL;
- }
-
- switch (var->bits_per_pixel) {
- case 16:
- depth = (var->green.length == 6) ? 16 : 15;
- break;
- case 32:
- depth = (var->transp.length > 0) ? 32 : 24;
- break;
- default:
- depth = var->bits_per_pixel;
- break;
- }
-
- switch (depth) {
- case 8:
- var->red.offset = 0;
- var->green.offset = 0;
- var->blue.offset = 0;
- var->red.length = 8;
- var->green.length = 8;
- var->blue.length = 8;
- var->transp.length = 0;
- var->transp.offset = 0;
- break;
- case 15:
- var->red.offset = 10;
- var->green.offset = 5;
- var->blue.offset = 0;
- var->red.length = 5;
- var->green.length = 5;
- var->blue.length = 5;
- var->transp.length = 1;
- var->transp.offset = 15;
- break;
- case 16:
- var->red.offset = 11;
- var->green.offset = 6;
- var->blue.offset = 0;
- var->red.length = 5;
- var->green.length = 6;
- var->blue.length = 5;
- var->transp.length = 0;
- var->transp.offset = 0;
- break;
- case 24:
- var->red.offset = 16;
- var->green.offset = 8;
- var->blue.offset = 0;
- var->red.length = 8;
- var->green.length = 8;
- var->blue.length = 8;
- var->transp.length = 0;
- var->transp.offset = 0;
- break;
- case 32:
- var->red.offset = 16;
- var->green.offset = 8;
- var->blue.offset = 0;
- var->red.length = 8;
- var->green.length = 8;
- var->blue.length = 8;
- var->transp.length = 8;
- var->transp.offset = 24;
- break;
- default:
- return -EINVAL;
- }
-
-#if 0
- /* Here we walk the output mode list and look for modes. If we haven't
- * got it, then bail. Not very nice, so this is disabled.
- * In the set_par code, we create our mode based on the incoming
- * parameters. Nicer, but may not be desired by some.
- */
- list_for_each_entry(output, &dev->mode_config.output_list, head) {
- if (output->crtc == par->crtc)
- break;
- }
-
- list_for_each_entry(drm_mode, &output->modes, head) {
- if (drm_mode->hdisplay == var->xres &&
- drm_mode->vdisplay == var->yres &&
- drm_mode->clock != 0)
- break;
- }
-
- if (!drm_mode)
- return -EINVAL;
-#endif
-
- return 0;
-}
-
-/* this will let fbcon do the mode init */
-static int drmfb_set_par(struct fb_info *info)
-{
- struct drmfb_par *par = info->par;
- struct drm_framebuffer *fb = par->crtc->fb;
- struct drm_device *dev = par->dev;
- struct drm_display_mode *drm_mode;
- struct fb_var_screeninfo *var = &info->var;
- struct drm_output *output;
-
- switch (var->bits_per_pixel) {
- case 16:
- fb->depth = (var->green.length == 6) ? 16 : 15;
- break;
- case 32:
- fb->depth = (var->transp.length > 0) ? 32 : 24;
- break;
- default:
- fb->depth = var->bits_per_pixel;
- break;
- }
-
- fb->bits_per_pixel = var->bits_per_pixel;
-
- info->fix.line_length = fb->pitch;
- info->fix.smem_len = info->fix.line_length * fb->height;
- info->fix.visual = (fb->depth == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
-
- info->screen_size = info->fix.smem_len; /* ??? */
-
- /* Should we walk the output's modelist or just create our own ???
- * For now, we create and destroy a mode based on the incoming
- * parameters. But there's commented out code below which scans
- * the output list too.
- */
-#if 0
- list_for_each_entry(output, &dev->mode_config.output_list, head) {
- if (output->crtc == par->crtc)
- break;
- }
-
- list_for_each_entry(drm_mode, &output->modes, head) {
- if (drm_mode->hdisplay == var->xres &&
- drm_mode->vdisplay == var->yres &&
- drm_mode->clock != 0)
- break;
- }
-#else
- drm_mode = drm_mode_create(dev);
- drm_mode->hdisplay = var->xres;
- drm_mode->hsync_start = drm_mode->hdisplay + var->right_margin;
- drm_mode->hsync_end = drm_mode->hsync_start + var->hsync_len;
- drm_mode->htotal = drm_mode->hsync_end + var->left_margin;
- drm_mode->vdisplay = var->yres;
- drm_mode->vsync_start = drm_mode->vdisplay + var->lower_margin;
- drm_mode->vsync_end = drm_mode->vsync_start + var->vsync_len;
- drm_mode->vtotal = drm_mode->vsync_end + var->upper_margin;
- drm_mode->clock = PICOS2KHZ(var->pixclock);
- drm_mode->vrefresh = drm_mode_vrefresh(drm_mode);
- drm_mode_set_name(drm_mode);
- drm_mode_set_crtcinfo(drm_mode, CRTC_INTERLACE_HALVE_V);
-#endif
-
- if (!drm_crtc_set_mode(par->crtc, drm_mode, 0, 0))
- return -EINVAL;
-
- /* Have to destroy our created mode if we're not searching the mode
- * list for it.
- */
-#if 1
- drm_mode_destroy(dev, drm_mode);
-#endif
-
- return 0;
-}
-
-static struct fb_ops drmfb_ops = {
- .owner = THIS_MODULE,
- // .fb_open = drmfb_open,
- // .fb_read = drmfb_read,
- // .fb_write = drmfb_write,
- // .fb_release = drmfb_release,
- // .fb_ioctl = drmfb_ioctl,
- .fb_check_var = drmfb_check_var,
- .fb_set_par = drmfb_set_par,
- .fb_setcolreg = drmfb_setcolreg,
- .fb_fillrect = cfb_fillrect,
- .fb_copyarea = cfb_copyarea,
- .fb_imageblit = cfb_imageblit,
-};
-
-int drmfb_probe(struct drm_device *dev, struct drm_crtc *crtc)
-{
- struct fb_info *info;
- struct drm_framebuffer *fb = crtc->fb;
- struct drmfb_par *par;
- struct device *device = &dev->pdev->dev;
- struct drm_display_mode *mode = crtc->desired_mode;
- int ret;
-
- info = framebuffer_alloc(sizeof(struct drmfb_par), device);
- if (!info)
- return -ENOMEM;
-
- fb->fbdev = info;
-
- par = info->par;
-
- par->dev = dev;
- par->crtc = crtc;
-
- info->fbops = &drmfb_ops;
-
- strcpy(info->fix.id, "drmfb");
- info->fix.type = FB_TYPE_PACKED_PIXELS;
- info->fix.visual = FB_VISUAL_TRUECOLOR;
- info->fix.accel = FB_ACCEL_NONE;
- info->fix.type_aux = 0;
- info->fix.mmio_start = 0;
- info->fix.mmio_len = 0;
- info->fix.line_length = fb->pitch;
- info->fix.smem_start = fb->offset + dev->mode_config.fb_base;
- info->fix.smem_len = info->fix.line_length * fb->height;
-
- info->flags = FBINFO_DEFAULT;
-
- ret = drm_mem_reg_ioremap(dev, &fb->bo->mem, &fb->virtual_base);
- if (ret)
- DRM_ERROR("error mapping fb: %d\n", ret);
-
- info->screen_base = fb->virtual_base;
- info->screen_size = info->fix.smem_len; /* ??? */
- info->pseudo_palette = fb->pseudo_palette;
- info->var.xres_virtual = fb->width;
- info->var.yres_virtual = fb->height;
- info->var.bits_per_pixel = fb->bits_per_pixel;
- info->var.xoffset = 0;
- info->var.yoffset = 0;
- info->var.activate = FB_ACTIVATE_NOW;
- info->var.height = -1;
- info->var.width = -1;
- info->var.vmode = FB_VMODE_NONINTERLACED;
-
- info->var.xres = mode->hdisplay;
- info->var.right_margin = mode->hsync_start - mode->hdisplay;
- info->var.hsync_len = mode->hsync_end - mode->hsync_start;
- info->var.left_margin = mode->htotal - mode->hsync_end;
- info->var.yres = mode->vdisplay;
- info->var.lower_margin = mode->vsync_start - mode->vdisplay;
- info->var.vsync_len = mode->vsync_end - mode->vsync_start;
- info->var.upper_margin = mode->vtotal - mode->vsync_end;
- info->var.pixclock = 10000000 / mode->htotal * 1000 /
- mode->vtotal * 100;
- /* avoid overflow */
- info->var.pixclock = info->var.pixclock * 1000 / mode->vrefresh;
-
- DRM_DEBUG("fb depth is %d\n", fb->depth);
- switch(fb->depth) {
- case 8:
- info->var.red.offset = 0;
- info->var.green.offset = 0;
- info->var.blue.offset = 0;
- info->var.red.length = 8; /* 8bit DAC */
- info->var.green.length = 8;
- info->var.blue.length = 8;
- info->var.transp.offset = 0;
- info->var.transp.length = 0;
- break;
- case 15:
- info->var.red.offset = 10;
- info->var.green.offset = 5;
- info->var.blue.offset = 0;
- info->var.red.length = info->var.green.length =
- info->var.blue.length = 5;
- info->var.transp.offset = 15;
- info->var.transp.length = 1;
- break;
- case 16:
- info->var.red.offset = 11;
- info->var.green.offset = 5;
- info->var.blue.offset = 0;
- info->var.red.length = 5;
- info->var.green.length = 6;
- info->var.blue.length = 5;
- info->var.transp.offset = 0;
- info->var.transp.length = 0;
- break;
- case 24:
- info->var.red.offset = 16;
- info->var.green.offset = 8;
- info->var.blue.offset = 0;
- info->var.red.length = info->var.green.length =
- info->var.blue.length = 8;
- info->var.transp.offset = 0;
- info->var.transp.length = 0;
- break;
- case 32:
- info->var.red.offset = 16;
- info->var.green.offset = 8;
- info->var.blue.offset = 0;
- info->var.red.length = info->var.green.length =
- info->var.blue.length = 8;
- info->var.transp.offset = 24;
- info->var.transp.length = 8;
- break;
- default:
- break;
- }
-
- if (register_framebuffer(info) < 0) {
- unregister_framebuffer(info);
- return -EINVAL;
- }
-
- printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node,
- info->fix.id);
- return 0;
-}
-EXPORT_SYMBOL(drmfb_probe);
-
-int drmfb_remove(struct drm_device *dev, struct drm_crtc *crtc)
-{
- struct fb_info *info = fb->fbdev;
- struct drm_framebuffer *fb = crtc->fb;
-
- if (info) {
- drm_mem_reg_iounmap(dev, &fb->bo->mem, fb->virtual_base);
- unregister_framebuffer(info);
- framebuffer_release(info);
- }
- return 0;
-}
-EXPORT_SYMBOL(drmfb_remove);
-MODULE_LICENSE("GPL");