From 86297c41a26f18d924e64fc93321c59cbc4c48dd Mon Sep 17 00:00:00 2001 From: Thomas Bushnell Date: Mon, 26 Apr 1999 05:58:44 +0000 Subject: 1998-11-30 OKUJI Yoshinori Clean up linux emulation code to make it architecture-independent as much as possible. * linux: Renamed from linuxdev. * Makefile.in (objfiles): Add linux.o instead of linuxdev.o. (MAKE): New variable. Used for the linux.o target. * configure.in: Add AC_CHECK_TOOL(MAKE, make). * i386/i386/spl.h: Include , for compatibility with OSF Mach 3.0. Suggested by Elgin Lee . * linux/src: Renamed from linux/linux. * linux/dev: Renamed from linux/mach. * linux/Drivers.in (AC_INIT): Use dev/include/linux/autoconf.h, instead of mach/include/linux/autoconf.h. * Makefile.in (all): Target ../linux.o instead of ../linuxdev.o. * linux/dev/drivers/block/genhd.c: Include instead of . * linux/dev/drivers/net/auto_irq.c: Remove unneeded header files, and . * linux/dev/init/main.c: Many i386-dependent codes moved to ... * linux/dev/arch/i386/irq.c: ... here. * linux/dev/arch/i386/setup.c: New file. * linux/dev/arch/i386/linux_emul.h: Likewise. * linux/dev/arch/i386/glue/timer.c: Merged into sched.c. * linux/dev/arch/i386/glue/sched.c: Include instead of , and moved to ... * linux/dev/kernel/sched.c: ... here. * linux/dev/arch/i386/glue/block.c: Include and , instead of i386-dependent header files, and moved to ... * linux/dev/glue/blocl.c: ... here. * linux/dev/arch/i386/glue/net.c: Include and , instead of i386-dependent header files, and moved to ... * linux/dev/glue/net.c: ... here. * linux/dev/arch/i386/glue/misc.c: Remove `x86' and moved to ... * linux/dev/glue/misc.c: ... here. * linux/dev/arch/i386/glue/kmem.c: Moved to ... * linux/dev/glue/kmem.c: ... here. --- linux/src/drivers/scsi/sd_ioctl.c | 119 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 119 insertions(+) create mode 100644 linux/src/drivers/scsi/sd_ioctl.c (limited to 'linux/src/drivers/scsi/sd_ioctl.c') diff --git a/linux/src/drivers/scsi/sd_ioctl.c b/linux/src/drivers/scsi/sd_ioctl.c new file mode 100644 index 0000000..52fd754 --- /dev/null +++ b/linux/src/drivers/scsi/sd_ioctl.c @@ -0,0 +1,119 @@ +/* + * drivers/scsi/sd_ioctl.c + * + * ioctl handling for SCSI disks + */ + +#include +#include +#include +#include +#include +#include + +#include + +#include +#include "scsi.h" +#include +#include "hosts.h" +#include "sd.h" +#include /* must follow "hosts.h" */ + +int sd_ioctl(struct inode * inode, struct file * file, unsigned int cmd, unsigned long arg) +{ + kdev_t dev = inode->i_rdev; + int error; + struct Scsi_Host * host; + int diskinfo[4]; + struct hd_geometry *loc = (struct hd_geometry *) arg; + + switch (cmd) { + case HDIO_GETGEO: /* Return BIOS disk parameters */ + if (!loc) return -EINVAL; + error = verify_area(VERIFY_WRITE, loc, sizeof(*loc)); + if (error) + return error; + host = rscsi_disks[MINOR(dev) >> 4].device->host; + +/* default to most commonly used values */ + + diskinfo[0] = 0x40; + diskinfo[1] = 0x20; + diskinfo[2] = rscsi_disks[MINOR(dev) >> 4].capacity >> 11; + +/* override with calculated, extended default, or driver values */ + + if(host->hostt->bios_param != NULL) + host->hostt->bios_param(&rscsi_disks[MINOR(dev) >> 4], + dev, + &diskinfo[0]); + else scsicam_bios_param(&rscsi_disks[MINOR(dev) >> 4], + dev, &diskinfo[0]); + + put_user(diskinfo[0], &loc->heads); + put_user(diskinfo[1], &loc->sectors); + put_user(diskinfo[2], &loc->cylinders); + put_user(sd[MINOR(inode->i_rdev)].start_sect, &loc->start); + return 0; + case BLKGETSIZE: /* Return device size */ + if (!arg) return -EINVAL; + error = verify_area(VERIFY_WRITE, (long *) arg, sizeof(long)); + if (error) + return error; + put_user(sd[MINOR(inode->i_rdev)].nr_sects, + (long *) arg); + return 0; + + case BLKRASET: + if (!suser()) + return -EACCES; + if(!(inode->i_rdev)) return -EINVAL; + if(arg > 0xff) return -EINVAL; + read_ahead[MAJOR(inode->i_rdev)] = arg; + return 0; + + case BLKRAGET: + if (!arg) + return -EINVAL; + error = verify_area(VERIFY_WRITE, (int *) arg, sizeof(int)); + if (error) + return error; + put_user(read_ahead[MAJOR(inode->i_rdev)], (int *) arg); + return 0; + + case BLKFLSBUF: + if(!suser()) return -EACCES; + if(!(inode->i_rdev)) return -EINVAL; + fsync_dev(inode->i_rdev); + invalidate_buffers(inode->i_rdev); + return 0; + + case BLKRRPART: /* Re-read partition tables */ + return revalidate_scsidisk(dev, 1); + + RO_IOCTLS(dev, arg); + + default: + return scsi_ioctl(rscsi_disks[MINOR(dev) >> 4].device , cmd, (void *) arg); + } +} + +/* + * Overrides for Emacs so that we follow Linus's tabbing style. + * Emacs will notice this stuff at the end of the file and automatically + * adjust the settings for this buffer only. This must remain at the end + * of the file. + * --------------------------------------------------------------------------- + * Local variables: + * c-indent-level: 4 + * c-brace-imaginary-offset: 0 + * c-brace-offset: -4 + * c-argdecl-indent: 4 + * c-label-offset: -4 + * c-continued-statement-offset: 4 + * c-continued-brace-offset: 0 + * indent-tabs-mode: nil + * tab-width: 8 + * End: + */ -- cgit v1.2.3