/* * 32bit -> 64bit ioctl wrapper for hwdep API * Copyright (c) by Takashi Iwai * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ /* This file is included from hwdep.c */ #include struct snd_hwdep_dsp_image32 { u32 index; unsigned char name[64]; u32 image; /* pointer */ u32 length; u32 driver_data; } /* don't set packed attribute here */; static int snd_hwdep_dsp_load_compat(struct snd_hwdep *hw, struct snd_hwdep_dsp_image32 __user *src) { struct snd_hwdep_dsp_image __user *dst; compat_caddr_t ptr; u32 val; dst = compat_alloc_user_space(sizeof(*dst)); /* index and name */ if (copy_in_user(dst, src, 4 + 64)) return -EFAULT; if (get_user(ptr, &src->image) || put_user(compat_ptr(ptr), &dst->image)) return -EFAULT; if (get_user(val, &src->length) || put_user(val, &dst->length)) return -EFAULT; if (get_user(val, &src->driver_data) || put_user(val, &dst->driver_data)) return -EFAULT; return snd_hwdep_dsp_load(hw, dst); } enum { SNDRV_HWDEP_IOCTL_DSP_LOAD32 = _IOW('H', 0x03, struct snd_hwdep_dsp_image32) }; static long snd_hwdep_ioctl_compat(struct file * file, unsigned int cmd, unsigned long arg) { struct snd_hwdep *hw = file->private_data; void __user *argp = compat_ptr(arg); switch (cmd) { case SNDRV_HWDEP_IOCTL_PVERSION: case SNDRV_HWDEP_IOCTL_INFO: case SNDRV_HWDEP_IOCTL_DSP_STATUS: return snd_hwdep_ioctl(file, cmd, (unsigned long)argp); case SNDRV_HWDEP_IOCTL_DSP_LOAD32: return snd_hwdep_dsp_load_compat(hw, argp); } if (hw->ops.ioctl_compat) return hw->ops.ioctl_compat(hw, file, cmd, arg); return -ENOIOCTLCMD; } td>

path: root/sound/soc/blackfin/bfin-eval-adav80x.c

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