mirror of https://gitee.com/openkylin/linux.git
[PATCH] fbdev: move ioctl32 code to fbmem.c
The frame buffer layer already had some code dealing with compat ioctls, this patch moves over the remaining code from fs/compat_ioctl.c Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Arnd Bergmann
Linus Torvalds
parent
01a16fae8e
commit
c7f82d9c49
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@ -14,6 +14,7 @@
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#include <linux/config.h>
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#include <linux/module.h>
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#include <linux/compat.h>
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#include <linux/types.h>
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#include <linux/errno.h>
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#include <linux/sched.h>
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@ -933,18 +934,154 @@ fb_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
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}
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#ifdef CONFIG_COMPAT
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struct fb_fix_screeninfo32 {
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char id[16];
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compat_caddr_t smem_start;
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u32 smem_len;
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u32 type;
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u32 type_aux;
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u32 visual;
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u16 xpanstep;
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u16 ypanstep;
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u16 ywrapstep;
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u32 line_length;
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compat_caddr_t mmio_start;
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u32 mmio_len;
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u32 accel;
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u16 reserved[3];
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};
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struct fb_cmap32 {
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u32 start;
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u32 len;
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compat_caddr_t red;
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compat_caddr_t green;
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compat_caddr_t blue;
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compat_caddr_t transp;
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};
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static int fb_getput_cmap(struct inode *inode, struct file *file,
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unsigned int cmd, unsigned long arg)
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{
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struct fb_cmap_user __user *cmap;
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struct fb_cmap32 __user *cmap32;
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__u32 data;
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int err;
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cmap = compat_alloc_user_space(sizeof(*cmap));
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cmap32 = compat_ptr(arg);
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if (copy_in_user(&cmap->start, &cmap32->start, 2 * sizeof(__u32)))
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return -EFAULT;
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if (get_user(data, &cmap32->red) ||
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put_user(compat_ptr(data), &cmap->red) ||
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get_user(data, &cmap32->green) ||
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put_user(compat_ptr(data), &cmap->green) ||
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get_user(data, &cmap32->blue) ||
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put_user(compat_ptr(data), &cmap->blue) ||
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get_user(data, &cmap32->transp) ||
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put_user(compat_ptr(data), &cmap->transp))
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return -EFAULT;
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err = fb_ioctl(inode, file, cmd, (unsigned long) cmap);
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if (!err) {
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if (copy_in_user(&cmap32->start,
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&cmap->start,
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2 * sizeof(__u32)))
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err = -EFAULT;
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}
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return err;
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}
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static int do_fscreeninfo_to_user(struct fb_fix_screeninfo *fix,
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struct fb_fix_screeninfo32 __user *fix32)
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{
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__u32 data;
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int err;
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err = copy_to_user(&fix32->id, &fix->id, sizeof(fix32->id));
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data = (__u32) (unsigned long) fix->smem_start;
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err |= put_user(data, &fix32->smem_start);
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err |= put_user(fix->smem_len, &fix32->smem_len);
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err |= put_user(fix->type, &fix32->type);
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err |= put_user(fix->type_aux, &fix32->type_aux);
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err |= put_user(fix->visual, &fix32->visual);
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err |= put_user(fix->xpanstep, &fix32->xpanstep);
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err |= put_user(fix->ypanstep, &fix32->ypanstep);
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err |= put_user(fix->ywrapstep, &fix32->ywrapstep);
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err |= put_user(fix->line_length, &fix32->line_length);
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data = (__u32) (unsigned long) fix->mmio_start;
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err |= put_user(data, &fix32->mmio_start);
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err |= put_user(fix->mmio_len, &fix32->mmio_len);
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err |= put_user(fix->accel, &fix32->accel);
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err |= copy_to_user(fix32->reserved, fix->reserved,
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sizeof(fix->reserved));
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return err;
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}
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static int fb_get_fscreeninfo(struct inode *inode, struct file *file,
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unsigned int cmd, unsigned long arg)
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{
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mm_segment_t old_fs;
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struct fb_fix_screeninfo fix;
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struct fb_fix_screeninfo32 __user *fix32;
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int err;
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fix32 = compat_ptr(arg);
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old_fs = get_fs();
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set_fs(KERNEL_DS);
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err = fb_ioctl(inode, file, cmd, (unsigned long) &fix);
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set_fs(old_fs);
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if (!err)
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err = do_fscreeninfo_to_user(&fix, fix32);
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return err;
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}
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static long
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fb_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
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{
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int fbidx = iminor(file->f_dentry->d_inode);
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struct inode *inode = file->f_dentry->d_inode;
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int fbidx = iminor(inode);
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struct fb_info *info = registered_fb[fbidx];
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struct fb_ops *fb = info->fbops;
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long ret;
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long ret = -ENOIOCTLCMD;
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if (fb->fb_compat_ioctl == NULL)
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return -ENOIOCTLCMD;
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lock_kernel();
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ret = fb->fb_compat_ioctl(file, cmd, arg, info);
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switch(cmd) {
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case FBIOGET_VSCREENINFO:
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case FBIOPUT_VSCREENINFO:
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case FBIOPAN_DISPLAY:
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case FBIOGET_CON2FBMAP:
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case FBIOPUT_CON2FBMAP:
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arg = (unsigned long) compat_ptr(arg);
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case FBIOBLANK:
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ret = fb_ioctl(inode, file, cmd, arg);
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break;
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case FBIOGET_FSCREENINFO:
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ret = fb_get_fscreeninfo(inode, file, cmd, arg);
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break;
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case FBIOGETCMAP:
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case FBIOPUTCMAP:
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ret = fb_getput_cmap(inode, file, cmd, arg);
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break;
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default:
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if (fb->fb_compat_ioctl)
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ret = fb->fb_compat_ioctl(file, cmd, arg, info);
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break;
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}
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unlock_kernel();
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return ret;
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}
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@ -840,146 +840,6 @@ static int hdio_getgeo(unsigned int fd, unsigned int cmd, unsigned long arg)
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return err ? -EFAULT : 0;
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}
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struct fb_fix_screeninfo32 {
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char id[16];
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compat_caddr_t smem_start;
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u32 smem_len;
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u32 type;
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u32 type_aux;
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u32 visual;
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u16 xpanstep;
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u16 ypanstep;
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u16 ywrapstep;
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u32 line_length;
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compat_caddr_t mmio_start;
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u32 mmio_len;
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u32 accel;
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u16 reserved[3];
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};
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struct fb_cmap32 {
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u32 start;
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u32 len;
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compat_caddr_t red;
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compat_caddr_t green;
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compat_caddr_t blue;
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compat_caddr_t transp;
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};
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static int fb_getput_cmap(unsigned int fd, unsigned int cmd, unsigned long arg)
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{
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struct fb_cmap_user __user *cmap;
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struct fb_cmap32 __user *cmap32;
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__u32 data;
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int err;
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cmap = compat_alloc_user_space(sizeof(*cmap));
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cmap32 = compat_ptr(arg);
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if (copy_in_user(&cmap->start, &cmap32->start, 2 * sizeof(__u32)))
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return -EFAULT;
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if (get_user(data, &cmap32->red) ||
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put_user(compat_ptr(data), &cmap->red) ||
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get_user(data, &cmap32->green) ||
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put_user(compat_ptr(data), &cmap->green) ||
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get_user(data, &cmap32->blue) ||
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put_user(compat_ptr(data), &cmap->blue) ||
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get_user(data, &cmap32->transp) ||
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put_user(compat_ptr(data), &cmap->transp))
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return -EFAULT;
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err = sys_ioctl(fd, cmd, (unsigned long) cmap);
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if (!err) {
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if (copy_in_user(&cmap32->start,
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&cmap->start,
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2 * sizeof(__u32)))
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err = -EFAULT;
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}
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return err;
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}
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static int do_fscreeninfo_to_user(struct fb_fix_screeninfo *fix,
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struct fb_fix_screeninfo32 __user *fix32)
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{
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__u32 data;
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int err;
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err = copy_to_user(&fix32->id, &fix->id, sizeof(fix32->id));
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data = (__u32) (unsigned long) fix->smem_start;
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err |= put_user(data, &fix32->smem_start);
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err |= put_user(fix->smem_len, &fix32->smem_len);
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err |= put_user(fix->type, &fix32->type);
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err |= put_user(fix->type_aux, &fix32->type_aux);
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err |= put_user(fix->visual, &fix32->visual);
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err |= put_user(fix->xpanstep, &fix32->xpanstep);
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err |= put_user(fix->ypanstep, &fix32->ypanstep);
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err |= put_user(fix->ywrapstep, &fix32->ywrapstep);
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err |= put_user(fix->line_length, &fix32->line_length);
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data = (__u32) (unsigned long) fix->mmio_start;
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err |= put_user(data, &fix32->mmio_start);
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err |= put_user(fix->mmio_len, &fix32->mmio_len);
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err |= put_user(fix->accel, &fix32->accel);
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err |= copy_to_user(fix32->reserved, fix->reserved,
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sizeof(fix->reserved));
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return err;
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}
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static int fb_get_fscreeninfo(unsigned int fd, unsigned int cmd, unsigned long arg)
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{
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mm_segment_t old_fs;
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struct fb_fix_screeninfo fix;
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struct fb_fix_screeninfo32 __user *fix32;
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int err;
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fix32 = compat_ptr(arg);
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old_fs = get_fs();
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set_fs(KERNEL_DS);
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err = sys_ioctl(fd, cmd, (unsigned long) &fix);
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set_fs(old_fs);
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if (!err)
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err = do_fscreeninfo_to_user(&fix, fix32);
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return err;
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}
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static int fb_ioctl_trans(unsigned int fd, unsigned int cmd, unsigned long arg)
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{
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int err;
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switch (cmd) {
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case FBIOGET_FSCREENINFO:
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err = fb_get_fscreeninfo(fd,cmd, arg);
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break;
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case FBIOGETCMAP:
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case FBIOPUTCMAP:
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err = fb_getput_cmap(fd, cmd, arg);
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break;
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default:
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do {
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static int count;
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if (++count <= 20)
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printk("%s: Unknown fb ioctl cmd fd(%d) "
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"cmd(%08x) arg(%08lx)\n",
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__FUNCTION__, fd, cmd, arg);
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} while(0);
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err = -ENOSYS;
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break;
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};
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return err;
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}
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static int hdio_ioctl_trans(unsigned int fd, unsigned int cmd, unsigned long arg)
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{
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mm_segment_t old_fs = get_fs();
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@ -2953,10 +2813,7 @@ HANDLE_IOCTL(BLKGETSIZE, w_long)
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HANDLE_IOCTL(0x1260, broken_blkgetsize)
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HANDLE_IOCTL(BLKFRAGET, w_long)
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HANDLE_IOCTL(BLKSECTGET, w_long)
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HANDLE_IOCTL(FBIOGET_FSCREENINFO, fb_ioctl_trans)
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HANDLE_IOCTL(BLKPG, blkpg_ioctl_trans)
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HANDLE_IOCTL(FBIOGETCMAP, fb_ioctl_trans)
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HANDLE_IOCTL(FBIOPUTCMAP, fb_ioctl_trans)
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HANDLE_IOCTL(HDIO_GET_KEEPSETTINGS, hdio_ioctl_trans)
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HANDLE_IOCTL(HDIO_GET_UNMASKINTR, hdio_ioctl_trans)
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HANDLE_IOCTL(HDIO_GET_DMA, hdio_ioctl_trans)
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@ -56,13 +56,6 @@ ULONG_IOCTL(TIOCSCTTY)
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COMPATIBLE_IOCTL(TIOCGPTN)
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COMPATIBLE_IOCTL(TIOCSPTLCK)
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COMPATIBLE_IOCTL(TIOCSERGETLSR)
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/* Big F */
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COMPATIBLE_IOCTL(FBIOBLANK)
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COMPATIBLE_IOCTL(FBIOGET_VSCREENINFO)
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COMPATIBLE_IOCTL(FBIOPUT_VSCREENINFO)
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COMPATIBLE_IOCTL(FBIOPAN_DISPLAY)
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COMPATIBLE_IOCTL(FBIOGET_CON2FBMAP)
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COMPATIBLE_IOCTL(FBIOPUT_CON2FBMAP)
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/* Little f */
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COMPATIBLE_IOCTL(FIOCLEX)
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COMPATIBLE_IOCTL(FIONCLEX)
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