80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
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/* $Id: ia32_ioctl.c,v 1.25 2002/10/11 07:17:06 ak Exp $
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* ioctl32.c: Conversion between 32bit and 64bit native ioctls.
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*
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* Copyright (C) 1997-2000 Jakub Jelinek (jakub@redhat.com)
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* Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
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* Copyright (C) 2001,2002 Andi Kleen, SuSE Labs
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*
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* These routines maintain argument size conversion between 32bit and 64bit
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* ioctls.
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*/
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#define INCLUDES
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#include <linux/syscalls.h>
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#include "compat_ioctl.c"
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#include <asm/ia32.h>
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#define CODE
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#include "compat_ioctl.c"
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#define RTC_IRQP_READ32 _IOR('p', 0x0b, unsigned int) /* Read IRQ rate */
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#define RTC_IRQP_SET32 _IOW('p', 0x0c, unsigned int) /* Set IRQ rate */
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#define RTC_EPOCH_READ32 _IOR('p', 0x0d, unsigned) /* Read epoch */
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#define RTC_EPOCH_SET32 _IOW('p', 0x0e, unsigned) /* Set epoch */
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static int rtc32_ioctl(unsigned fd, unsigned cmd, unsigned long arg)
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{
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unsigned long val;
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mm_segment_t oldfs = get_fs();
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int ret;
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switch (cmd) {
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case RTC_IRQP_READ32:
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set_fs(KERNEL_DS);
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ret = sys_ioctl(fd, RTC_IRQP_READ, (unsigned long)&val);
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set_fs(oldfs);
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if (!ret)
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ret = put_user(val, (unsigned int __user *) arg);
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return ret;
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case RTC_IRQP_SET32:
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cmd = RTC_IRQP_SET;
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break;
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case RTC_EPOCH_READ32:
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set_fs(KERNEL_DS);
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ret = sys_ioctl(fd, RTC_EPOCH_READ, (unsigned long) &val);
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set_fs(oldfs);
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if (!ret)
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ret = put_user(val, (unsigned int __user *) arg);
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return ret;
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case RTC_EPOCH_SET32:
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cmd = RTC_EPOCH_SET;
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break;
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}
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return sys_ioctl(fd,cmd,arg);
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}
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#define HANDLE_IOCTL(cmd,handler) { (cmd), (ioctl_trans_handler_t)(handler) },
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#define COMPATIBLE_IOCTL(cmd) HANDLE_IOCTL(cmd,sys_ioctl)
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struct ioctl_trans ioctl_start[] = {
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#include <linux/compat_ioctl.h>
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#define DECLARES
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#include "compat_ioctl.c"
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/* And these ioctls need translation */
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/* realtime device */
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HANDLE_IOCTL(RTC_IRQP_READ, rtc32_ioctl)
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HANDLE_IOCTL(RTC_IRQP_READ32,rtc32_ioctl)
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HANDLE_IOCTL(RTC_IRQP_SET32, rtc32_ioctl)
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HANDLE_IOCTL(RTC_EPOCH_READ32, rtc32_ioctl)
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HANDLE_IOCTL(RTC_EPOCH_SET32, rtc32_ioctl)
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/* take care of sizeof(sizeof()) breakage */
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};
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int ioctl_table_size = ARRAY_SIZE(ioctl_start);
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