diff options
Diffstat (limited to 'linux-core/intel_fb.c')
| -rw-r--r-- | linux-core/intel_fb.c | 769 |
1 files changed, 769 insertions, 0 deletions
diff --git a/linux-core/intel_fb.c b/linux-core/intel_fb.c new file mode 100644 index 00000000..7c4b0632 --- /dev/null +++ b/linux-core/intel_fb.c @@ -0,0 +1,769 @@ +/* + * 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.h" +#include "drm_crtc.h" +#include "i915_drm.h" +#include "i915_drv.h" + +struct intelfb_par { + struct drm_device *dev; + struct drm_crtc *crtc; + struct drm_display_mode *fb_mode; + struct drm_framebuffer *fb; +}; +/* +static int +var_to_refresh(const struct fb_var_screeninfo *var) +{ + int xtot = var->xres + var->left_margin + var->right_margin + + var->hsync_len; + int ytot = var->yres + var->upper_margin + var->lower_margin + + var->vsync_len; + + return (1000000000 / var->pixclock * 1000 + 500) / xtot / ytot; +}*/ + +static int intelfb_setcolreg(unsigned regno, unsigned red, unsigned green, + unsigned blue, unsigned transp, + struct fb_info *info) +{ + struct intelfb_par *par = info->par; + struct drm_framebuffer *fb = par->fb; + struct drm_crtc *crtc = par->crtc; + + if (regno > 255) + return 1; + + if (fb->depth == 8) { + if (crtc->funcs->gamma_set) + crtc->funcs->gamma_set(crtc, red, green, blue, regno); + 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 intelfb_check_var(struct fb_var_screeninfo *var, + struct fb_info *info) +{ + struct intelfb_par *par = info->par; + /*struct drm_device *dev = par->dev;*/ + struct drm_framebuffer *fb = par->fb; + /*struct drm_output *output;*/ + int depth/*, found = 0*/; + + 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 = 5; + 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 && + (((PICOS2KHZ(var->pixclock))/1000) >= ((drm_mode->clock/1000)-1)) && + (((PICOS2KHZ(var->pixclock))/1000) <= ((drm_mode->clock/1000)+1))) { + found = 1; + break; + } + } + + if (!found) + return -EINVAL; +#endif + + return 0; +} + +/* this will let fbcon do the mode init */ +/* FIXME: take mode config lock? */ +static int intelfb_set_par(struct fb_info *info) +{ + struct intelfb_par *par = info->par; + struct drm_framebuffer *fb = par->fb; + struct drm_device *dev = par->dev; + struct drm_display_mode *drm_mode, *search_mode; + struct drm_output *output = NULL; + struct fb_var_screeninfo *var = &info->var; + int found = 0; + int changed = 0; + + DRM_DEBUG("\n"); + + 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; /* ??? */ + + /* create a drm mode */ + 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->flags = 0; + drm_mode->flags |= var->sync & FB_SYNC_HOR_HIGH_ACT ? V_PHSYNC : V_NHSYNC; + drm_mode->flags |= var->sync & FB_SYNC_VERT_HIGH_ACT ? V_PVSYNC : V_NVSYNC; + + drm_mode_set_name(drm_mode); + drm_mode_set_crtcinfo(drm_mode, CRTC_INTERLACE_HALVE_V); + + found = 0; + list_for_each_entry(output, &dev->mode_config.output_list, head) { + if (output->crtc == par->crtc){ + found = 1; + break; + } + } + + /* no output bound, bail */ + if (!found) + return -EINVAL; + + found = 0; + drm_mode_debug_printmodeline(dev, drm_mode); + list_for_each_entry(search_mode, &output->modes, head) { + drm_mode_debug_printmodeline(dev, search_mode); + if (drm_mode_equal(drm_mode, search_mode)) { + drm_mode_destroy(dev, drm_mode); + drm_mode = search_mode; + found = 1; + break; + } + } + + /* If we didn't find a matching mode that exists on our output, + * create a new attachment for the incoming user specified mode + */ + if (!found) { + if (par->fb_mode) { + /* this also destroys the mode */ + drm_mode_detachmode_crtc(dev, par->fb_mode); + } + + par->fb_mode = drm_mode; + drm_mode_debug_printmodeline(dev, drm_mode); + /* attach mode */ + drm_mode_attachmode_crtc(dev, par->crtc, par->fb_mode); + } + + /* re-attach fb */ + if (!par->crtc->fb) { + par->crtc->fb = par->fb; + changed = 1; + } + + if (par->crtc->x != var->xoffset || par->crtc->y != var->yoffset) + changed = 1; + + drm_mode_debug_printmodeline(dev, drm_mode); + drm_mode_debug_printmodeline(dev, &par->crtc->mode); + if (!drm_mode_equal(drm_mode, &par->crtc->mode)) + changed = 1; + + if (changed) + if (!drm_crtc_set_mode(par->crtc, drm_mode, var->xoffset, var->yoffset)) + return -EINVAL; + + return 0; +} + +#if 0 +static void intelfb_copyarea(struct fb_info *info, + const struct fb_copyarea *region) +{ + struct intelfb_par *par = info->par; + struct drm_device *dev = par->dev; + struct drm_i915_private *dev_priv = dev->dev_private; + u32 src_x1, src_y1, dst_x1, dst_y1, dst_x2, dst_y2, offset; + u32 cmd, rop_depth_pitch, src_pitch; + RING_LOCALS; + + cmd = XY_SRC_COPY_BLT_CMD; + src_x1 = region->sx; + src_y1 = region->sy; + dst_x1 = region->dx; + dst_y1 = region->dy; + dst_x2 = region->dx + region->width; + dst_y2 = region->dy + region->height; + offset = par->fb->offset; + rop_depth_pitch = BLT_ROP_GXCOPY | par->fb->pitch; + src_pitch = par->fb->pitch; + + switch (par->fb->bits_per_pixel) { + case 16: + rop_depth_pitch |= BLT_DEPTH_16_565; + break; + case 32: + rop_depth_pitch |= BLT_DEPTH_32; + cmd |= XY_SRC_COPY_BLT_WRITE_ALPHA | XY_SRC_COPY_BLT_WRITE_RGB; + break; + } + + BEGIN_LP_RING(8); + OUT_RING(cmd); + OUT_RING(rop_depth_pitch); + OUT_RING((dst_y1 << 16) | (dst_x1 & 0xffff)); + OUT_RING((dst_y2 << 16) | (dst_x2 & 0xffff)); + OUT_RING(offset); + OUT_RING((src_y1 << 16) | (src_x1 & 0xffff)); + OUT_RING(src_pitch); + OUT_RING(offset); + ADVANCE_LP_RING(); +} + +#define ROUND_UP_TO(x, y) (((x) + (y) - 1) / (y) * (y)) +#define ROUND_DOWN_TO(x, y) ((x) / (y) * (y)) + +void intelfb_imageblit(struct fb_info *info, const struct fb_image *image) +{ + struct intelfb_par *par = info->par; + struct drm_device *dev = par->dev; + struct drm_i915_private *dev_priv = dev->dev_private; + u32 cmd, rop_pitch_depth, tmp; + int nbytes, ndwords, pad; + u32 dst_x1, dst_y1, dst_x2, dst_y2, offset, bg, fg; + int dat, ix, iy, iw; + int i, j; + RING_LOCALS; + + /* size in bytes of a padded scanline */ + nbytes = ROUND_UP_TO(image->width, 16) / 8; + + /* Total bytes of padded scanline data to write out. */ + nbytes *= image->height; + + /* + * Check if the glyph data exceeds the immediate mode limit. + * It would take a large font (1K pixels) to hit this limit. + */ + if (nbytes > 128 || image->depth != 1) + return cfb_imageblit(info, image); + + /* Src data is packaged a dword (32-bit) at a time. */ + ndwords = ROUND_UP_TO(nbytes, 4) / 4; + + /* + * Ring has to be padded to a quad word. But because the command starts + with 7 bytes, pad only if there is an even number of ndwords + */ + pad = !(ndwords % 2); + + DRM_DEBUG("imageblit %dx%dx%d to (%d,%d)\n", image->width, + image->height, image->depth, image->dx, image->dy); + DRM_DEBUG("nbytes: %d, ndwords: %d, pad: %d\n", nbytes, ndwords, pad); + + tmp = (XY_MONO_SRC_COPY_IMM_BLT & 0xff) + ndwords; + cmd = (XY_MONO_SRC_COPY_IMM_BLT & ~0xff) | tmp; + offset = par->fb->offset; + dst_x1 = image->dx; + dst_y1 = image->dy; + dst_x2 = image->dx + image->width; + dst_y2 = image->dy + image->height; + rop_pitch_depth = BLT_ROP_GXCOPY | par->fb->pitch; + + switch (par->fb->bits_per_pixel) { + case 8: + rop_pitch_depth |= BLT_DEPTH_8; + fg = image->fg_color; + bg = image->bg_color; + break; + case 16: + rop_pitch_depth |= BLT_DEPTH_16_565; + fg = par->fb->pseudo_palette[image->fg_color]; + bg = par->fb->pseudo_palette[image->bg_color]; + break; + case 32: + rop_pitch_depth |= BLT_DEPTH_32; + cmd |= XY_SRC_COPY_BLT_WRITE_ALPHA | XY_SRC_COPY_BLT_WRITE_RGB; + fg = par->fb->pseudo_palette[image->fg_color]; + bg = par->fb->pseudo_palette[image->bg_color]; + break; + default: + DRM_ERROR("unknown depth %d\n", par->fb->bits_per_pixel); + break; + } + + BEGIN_LP_RING(8 + ndwords); + OUT_RING(cmd); + OUT_RING(rop_pitch_depth); + OUT_RING((dst_y1 << 16) | (dst_x1 & 0xffff)); + OUT_RING((dst_y2 << 16) | (dst_x2 & 0xffff)); + OUT_RING(offset); + OUT_RING(bg); + OUT_RING(fg); + ix = iy = 0; + iw = ROUND_UP_TO(image->width, 8) / 8; + while (ndwords--) { + dat = 0; + for (j = 0; j < 2; ++j) { + for (i = 0; i < 2; ++i) { + if (ix != iw || i == 0) + dat |= image->data[iy*iw + ix++] << (i+j*2)*8; + } + if (ix == iw && iy != (image->height - 1)) { + ix = 0; + ++iy; + } + } + OUT_RING(dat); + } + if (pad) + OUT_RING(MI_NOOP); + ADVANCE_LP_RING(); +} +#endif +static int intelfb_pan_display(struct fb_var_screeninfo *var, + struct fb_info *info) +{ + struct intelfb_par *par = info->par; + struct drm_crtc *crtc = par->crtc; + int changed = 0; + DRM_DEBUG("\n"); + + /* TODO add check size and pos*/ + if (par->crtc->x != var->xoffset || par->crtc->y != var->yoffset) + changed = 1; + + /* re-attach fb */ + if (!crtc->fb) { + crtc->fb = par->fb; + changed = 1; + } + + if (changed) + drm_crtc_set_mode(crtc, &crtc->mode, var->xoffset, var->yoffset); + + info->var.xoffset = var->xoffset; + info->var.yoffset = var->yoffset; + + return 0; +} + +static struct fb_ops intelfb_ops = { + .owner = THIS_MODULE, + // .fb_open = intelfb_open, + // .fb_read = intelfb_read, + // .fb_write = intelfb_write, + // .fb_release = intelfb_release, + // .fb_ioctl = intelfb_ioctl, + .fb_check_var = intelfb_check_var, + .fb_set_par = intelfb_set_par, + .fb_setcolreg = intelfb_setcolreg, + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, //intelfb_copyarea, + .fb_imageblit = cfb_imageblit, //intelfb_imageblit, + .fb_pan_display = intelfb_pan_display, +}; + +/** + * Curretly it is assumed that the old framebuffer is reused. + * + * LOCKING + * caller should hold the mode config lock. + * + */ +int intelfb_resize(struct drm_device *dev, struct drm_crtc *crtc) +{ + struct fb_info *info; + struct drm_framebuffer *fb; + struct drm_display_mode *mode = crtc->desired_mode; + + fb = crtc->fb; + if (!fb) + return 1; + + info = fb->fbdev; + if (!info) + return 1; + + if (!mode) + return 1; + + 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; + + return 0; +} +EXPORT_SYMBOL(intelfb_resize); + +int intelfb_probe(struct drm_device *dev, struct drm_crtc *crtc) +{ + struct fb_info *info; + struct intelfb_par *par; + struct device *device = &dev->pdev->dev; + struct drm_framebuffer *fb; + struct drm_display_mode *mode = crtc->desired_mode; + struct drm_buffer_object *fbo = NULL; + int ret; + + info = framebuffer_alloc(sizeof(struct intelfb_par), device); + if (!info){ + return -EINVAL; + } + + fb = drm_framebuffer_create(dev); + if (!fb) { + framebuffer_release(info); + DRM_ERROR("failed to allocate fb.\n"); + return -EINVAL; + } + crtc->fb = fb; + + /* To allow resizeing without swapping buffers */ + fb->width = 2048;/* crtc->desired_mode->hdisplay; */ + fb->height = 2048;/* crtc->desired_mode->vdisplay; */ + + fb->bits_per_pixel = 32; + fb->pitch = fb->width * ((fb->bits_per_pixel + 1) / 8); + fb->depth = 24; + ret = drm_buffer_object_create(dev, fb->pitch * fb->height, + drm_bo_type_kernel, + DRM_BO_FLAG_READ | + DRM_BO_FLAG_WRITE | + DRM_BO_FLAG_MEM_TT | + DRM_BO_FLAG_MEM_VRAM | + DRM_BO_FLAG_NO_EVICT, + DRM_BO_HINT_DONT_FENCE, 0, 0, + &fbo); + if (ret || !fbo) { + printk(KERN_ERR "failed to allocate framebuffer\n"); + drm_framebuffer_destroy(fb); + framebuffer_release(info); + return -EINVAL; + } + + fb->bo = fbo; + printk("allocated %dx%d fb: 0x%08lx, bo %p\n", fb->width, + fb->height, fbo->offset, fbo); + + + fb->fbdev = info; + + par = info->par; + + par->dev = dev; + par->crtc = crtc; + par->fb = fb; + + info->fbops = &intelfb_ops; + + strcpy(info->fix.id, "intelfb"); + info->fix.type = FB_TYPE_PACKED_PIXELS; + info->fix.visual = FB_VISUAL_TRUECOLOR; + info->fix.type_aux = 0; + info->fix.xpanstep = 1; /* doing it in hw */ + info->fix.ypanstep = 1; /* doing it in hw */ + info->fix.ywrapstep = 0; + info->fix.accel = FB_ACCEL_I830; + info->fix.type_aux = 0; + + if (IS_I9XX(dev)) { + info->fix.mmio_start = pci_resource_start(dev->pdev, 0); + info->fix.mmio_len = pci_resource_len(dev->pdev, 0); + } else { + info->fix.mmio_start = pci_resource_start(dev->pdev, 1); + info->fix.mmio_len = pci_resource_len(dev->pdev, 1); + } + + info->fix.line_length = fb->pitch; + info->fix.smem_start = fb->bo->offset + dev->mode_config.fb_base; + info->fix.smem_len = info->fix.line_length * fb->height; + + info->flags = FBINFO_DEFAULT; + + ret = drm_bo_kmap(fb->bo, 0, fb->bo->num_pages, &fb->kmap); + if (ret) + DRM_ERROR("error mapping fb: %d\n", ret); + + info->screen_base = fb->kmap.virtual; + info->screen_size = info->fix.smem_len; /* FIXME */ + 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.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 = KHZ2PICOS(mode->clock); + + if (mode->flags & V_PHSYNC) + info->var.sync |= FB_SYNC_HOR_HIGH_ACT; + + if (mode->flags & V_PVSYNC) + info->var.sync |= FB_SYNC_VERT_HIGH_ACT; + + if (mode->flags & V_INTERLACE) + info->var.vmode = FB_VMODE_INTERLACED; + else if (mode->flags & V_DBLSCAN) + info->var.vmode = FB_VMODE_DOUBLE; + else + info->var.vmode = FB_VMODE_NONINTERLACED; + + info->pixmap.size = 64*1024; + info->pixmap.buf_align = 8; + info->pixmap.access_align = 32; + info->pixmap.flags = FB_PIXMAP_SYSTEM; + info->pixmap.scan_align = 1; + + DRM_DEBUG("fb depth is %d\n", fb->depth); + DRM_DEBUG(" pitch is %d\n", fb->pitch); + 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; + 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) + return -EINVAL; + + printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node, + info->fix.id); + return 0; +} +EXPORT_SYMBOL(intelfb_probe); + +int intelfb_remove(struct drm_device *dev, struct drm_crtc *crtc) +{ + struct drm_framebuffer *fb = crtc->fb; + struct fb_info *info = fb->fbdev; + + if (info) { + unregister_framebuffer(info); + drm_bo_kunmap(&fb->kmap); + drm_bo_usage_deref_unlocked(&fb->bo); + drm_framebuffer_destroy(fb); + framebuffer_release(info); + } + return 0; +} +EXPORT_SYMBOL(intelfb_remove); +MODULE_LICENSE("GPL"); |