diff options
Diffstat (limited to 'drivers/staging/sm750fb/sm750.c')
-rw-r--r-- | drivers/staging/sm750fb/sm750.c | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/drivers/staging/sm750fb/sm750.c b/drivers/staging/sm750fb/sm750.c index 8c260ee..87029b6 100644 --- a/drivers/staging/sm750fb/sm750.c +++ b/drivers/staging/sm750fb/sm750.c @@ -510,69 +510,6 @@ static int lynxfb_resume(struct pci_dev* pdev) } #endif -static int lynxfb_ops_mmap(struct fb_info * info, struct vm_area_struct * vma) -{ - unsigned long off; - unsigned long start; - u32 len; - struct file *file; - - file = vma->vm_file; - - if (!info) - return -ENODEV; - if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) - return -EINVAL; - off = vma->vm_pgoff << PAGE_SHIFT; - printk("lynxfb mmap pgoff: %lx\n", vma->vm_pgoff); - printk("lynxfb mmap off 1: %lx\n", off); - - /* frame buffer memory */ - start = info->fix.smem_start; - len = PAGE_ALIGN((start & ~PAGE_MASK) + info->fix.smem_len); - - printk("lynxfb mmap start 1: %lx\n", start); - printk("lynxfb mmap len 1: %x\n", len); - - if (off >= len) { - /* memory mapped io */ - off -= len; - printk("lynxfb mmap off 2: %lx\n", off); - if (info->var.accel_flags) { - printk("lynxfb mmap accel flags true"); - return -EINVAL; - } - start = info->fix.mmio_start; - len = PAGE_ALIGN((start & ~PAGE_MASK) + info->fix.mmio_len); - - printk("lynxfb mmap start 2: %lx\n", start); - printk("lynxfb mmap len 2: %x\n", len); - } - start &= PAGE_MASK; - printk("lynxfb mmap start 3: %lx\n", start); - printk("lynxfb mmap vm start: %lx\n", vma->vm_start); - printk("lynxfb mmap vm end: %lx\n", vma->vm_end); - printk("lynxfb mmap len: %x\n", len); - printk("lynxfb mmap off: %lx\n", off); - if ((vma->vm_end - vma->vm_start + off) > len) - { - return -EINVAL; - } - off += start; - printk("lynxfb mmap off 3: %lx\n", off); - vma->vm_pgoff = off >> PAGE_SHIFT; - /* This is an IO map - tell maydump to skip this VMA */ - vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; - vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); - fb_pgprotect(file, vma, off); - printk("lynxfb mmap off 4: %lx\n", off); - printk("lynxfb mmap pgprot: %lx\n", (unsigned long) pgprot_val(vma->vm_page_prot)); - if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, - vma->vm_end - vma->vm_start, vma->vm_page_prot)) - return -EAGAIN; - return 0; -} - static int lynxfb_ops_check_var(struct fb_var_screeninfo* var,struct fb_info* info) { struct lynxfb_par * par; @@ -824,8 +761,6 @@ static struct fb_ops lynxfb_ops={ .fb_set_par = lynxfb_ops_set_par, .fb_setcolreg = lynxfb_ops_setcolreg, .fb_blank = lynxfb_ops_blank, - /*.fb_mmap = lynxfb_ops_mmap,*/ - /* will be hooked by hardware */ .fb_fillrect = cfb_fillrect, .fb_imageblit = cfb_imageblit, .fb_copyarea = cfb_copyarea, |