ide-floppy: move floppy ioctls handling to ide-floppy_ioctl.c
While at it: - idefloppy_create_read_capacity_cmd() -> ide_floppy_create_read_capacity_cmd() - idefloppy_create_mode_sense_cmd() -> ide_floppy_create_mode_sense_cmd() - idefloppy_create_request_sense_cmd() -> ide_floppy_create_request_sense_cmd() - idefloppy_create_format_unit_cmd() -> ide_floppy_create_format_unit_cmd() - idefloppy_get_sfrp_bit() -> ide_floppy_get_sfrp_bit() Acked-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz
parent
49cac39e71
commit
0127854d7c
@ -37,11 +37,12 @@ obj-$(CONFIG_IDE_GENERIC) += ide-generic.o
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obj-$(CONFIG_BLK_DEV_IDEPNP) += ide-pnp.o
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ide-cd_mod-y += ide-cd.o ide-cd_ioctl.o ide-cd_verbose.o
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ide-floppy_mod-y += ide-floppy.o ide-floppy_ioctl.o
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obj-$(CONFIG_BLK_DEV_IDEDISK) += ide-disk.o
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obj-$(CONFIG_BLK_DEV_IDECD) += ide-cd_mod.o
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obj-$(CONFIG_BLK_DEV_IDEFLOPPY) += ide-floppy_mod.o
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obj-$(CONFIG_BLK_DEV_IDETAPE) += ide-tape.o
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obj-$(CONFIG_BLK_DEV_IDEFLOPPY) += ide-floppy.o
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ifeq ($(CONFIG_BLK_DEV_IDECS), y)
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ide-cs-core-y += legacy/ide-cs.o
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@ -46,6 +46,8 @@
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#include <linux/io.h>
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#include <asm/unaligned.h>
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#include "ide-floppy.h"
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/* define to see debug info */
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#define IDEFLOPPY_DEBUG_LOG 0
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@ -75,61 +77,11 @@
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#define CAPACITY_CURRENT 0x02
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#define CAPACITY_NO_CARTRIDGE 0x03
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/*
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* Most of our global data which we need to save even as we leave the driver
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* due to an interrupt or a timer event is stored in a variable of type
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* idefloppy_floppy_t, defined below.
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*/
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typedef struct ide_floppy_obj {
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ide_drive_t *drive;
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ide_driver_t *driver;
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struct gendisk *disk;
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struct kref kref;
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unsigned int openers; /* protected by BKL for now */
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/* Current packet command */
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struct ide_atapi_pc *pc;
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/* Last failed packet command */
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struct ide_atapi_pc *failed_pc;
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/* used for blk_{fs,pc}_request() requests */
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struct ide_atapi_pc queued_pc;
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struct ide_atapi_pc request_sense_pc;
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struct request request_sense_rq;
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/* Last error information */
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u8 sense_key, asc, ascq;
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/* delay this long before sending packet command */
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u8 ticks;
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int progress_indication;
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/* Device information */
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/* Current format */
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int blocks, block_size, bs_factor;
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/* Last format capacity descriptor */
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u8 cap_desc[8];
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/* Copy of the flexible disk page */
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u8 flexible_disk_page[32];
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} idefloppy_floppy_t;
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#define IDEFLOPPY_TICKS_DELAY HZ/20 /* default delay for ZIP 100 (50ms) */
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/* IOCTLs used in low-level formatting. */
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#define IDEFLOPPY_IOCTL_FORMAT_SUPPORTED 0x4600
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#define IDEFLOPPY_IOCTL_FORMAT_GET_CAPACITY 0x4601
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#define IDEFLOPPY_IOCTL_FORMAT_START 0x4602
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#define IDEFLOPPY_IOCTL_FORMAT_GET_PROGRESS 0x4603
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/* Error code returned in rq->errors to the higher part of the driver. */
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#define IDEFLOPPY_ERROR_GENERAL 101
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/*
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* Pages of the SELECT SENSE / MODE SENSE packet commands.
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* See SFF-8070i spec.
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*/
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#define IDEFLOPPY_CAPABILITIES_PAGE 0x1b
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#define IDEFLOPPY_FLEXIBLE_DISK_PAGE 0x05
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static DEFINE_MUTEX(idefloppy_ref_mutex);
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#define to_ide_floppy(obj) container_of(obj, struct ide_floppy_obj, kref)
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@ -245,7 +197,7 @@ static void ide_floppy_callback(ide_drive_t *drive)
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idefloppy_end_request(drive, uptodate, 0);
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}
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static void idefloppy_create_request_sense_cmd(struct ide_atapi_pc *pc)
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void ide_floppy_create_request_sense_cmd(struct ide_atapi_pc *pc)
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{
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ide_init_pc(pc);
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pc->c[0] = GPCMD_REQUEST_SENSE;
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@ -264,7 +216,7 @@ static void idefloppy_retry_pc(ide_drive_t *drive)
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struct ide_atapi_pc *pc = &floppy->request_sense_pc;
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(void)ide_read_error(drive);
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idefloppy_create_request_sense_cmd(pc);
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ide_floppy_create_request_sense_cmd(pc);
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ide_queue_pc_head(drive, floppy->disk, pc, rq);
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}
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@ -382,7 +334,7 @@ static void idefloppy_create_prevent_cmd(struct ide_atapi_pc *pc, int prevent)
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pc->c[4] = prevent;
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}
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static void idefloppy_create_read_capacity_cmd(struct ide_atapi_pc *pc)
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void ide_floppy_create_read_capacity_cmd(struct ide_atapi_pc *pc)
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{
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ide_init_pc(pc);
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pc->c[0] = GPCMD_READ_FORMAT_CAPACITIES;
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@ -391,30 +343,8 @@ static void idefloppy_create_read_capacity_cmd(struct ide_atapi_pc *pc)
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pc->req_xfer = 255;
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}
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static void idefloppy_create_format_unit_cmd(struct ide_atapi_pc *pc, int b,
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int l, int flags)
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{
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ide_init_pc(pc);
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pc->c[0] = GPCMD_FORMAT_UNIT;
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pc->c[1] = 0x17;
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memset(pc->buf, 0, 12);
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pc->buf[1] = 0xA2;
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/* Default format list header, u8 1: FOV/DCRT/IMM bits set */
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if (flags & 1) /* Verify bit on... */
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pc->buf[1] ^= 0x20; /* ... turn off DCRT bit */
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pc->buf[3] = 8;
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put_unaligned(cpu_to_be32(b), (unsigned int *)(&pc->buf[4]));
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put_unaligned(cpu_to_be32(l), (unsigned int *)(&pc->buf[8]));
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pc->buf_size = 12;
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pc->flags |= PC_FLAG_WRITING;
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}
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/* A mode sense command is used to "sense" floppy parameters. */
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static void idefloppy_create_mode_sense_cmd(struct ide_atapi_pc *pc,
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u8 page_code)
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void ide_floppy_create_mode_sense_cmd(struct ide_atapi_pc *pc, u8 page_code)
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{
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u16 length = 8; /* sizeof(Mode Parameter Header) = 8 Bytes */
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@ -563,7 +493,7 @@ static int ide_floppy_get_flexible_disk_page(ide_drive_t *drive)
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u16 transfer_rate, sector_size, cyls, rpm;
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u8 heads, sectors;
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idefloppy_create_mode_sense_cmd(&pc, IDEFLOPPY_FLEXIBLE_DISK_PAGE);
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ide_floppy_create_mode_sense_cmd(&pc, IDEFLOPPY_FLEXIBLE_DISK_PAGE);
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if (ide_queue_pc_tail(drive, disk, &pc)) {
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printk(KERN_ERR "ide-floppy: Can't get flexible disk page"
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@ -611,25 +541,6 @@ static int ide_floppy_get_flexible_disk_page(ide_drive_t *drive)
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return 0;
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}
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static int idefloppy_get_sfrp_bit(ide_drive_t *drive)
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{
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idefloppy_floppy_t *floppy = drive->driver_data;
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struct ide_atapi_pc pc;
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drive->atapi_flags &= ~IDE_AFLAG_SRFP;
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idefloppy_create_mode_sense_cmd(&pc, IDEFLOPPY_CAPABILITIES_PAGE);
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pc.flags |= PC_FLAG_SUPPRESS_ERROR;
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if (ide_queue_pc_tail(drive, floppy->disk, &pc))
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return 1;
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if (pc.buf[8 + 2] & 0x40)
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drive->atapi_flags |= IDE_AFLAG_SRFP;
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return 0;
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}
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/*
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* Determine if a media is present in the floppy drive, and if so, its LBA
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* capacity.
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@ -649,7 +560,7 @@ static int ide_floppy_get_capacity(ide_drive_t *drive)
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floppy->bs_factor = 1;
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set_capacity(floppy->disk, 0);
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idefloppy_create_read_capacity_cmd(&pc);
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ide_floppy_create_read_capacity_cmd(&pc);
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if (ide_queue_pc_tail(drive, disk, &pc)) {
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printk(KERN_ERR "ide-floppy: Can't get floppy parameters\n");
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return 1;
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@ -730,129 +641,6 @@ static int ide_floppy_get_capacity(ide_drive_t *drive)
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return rc;
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}
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/*
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* Obtain the list of formattable capacities.
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* Very similar to ide_floppy_get_capacity, except that we push the capacity
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* descriptors to userland, instead of our own structures.
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*
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* Userland gives us the following structure:
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*
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* struct idefloppy_format_capacities {
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* int nformats;
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* struct {
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* int nblocks;
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* int blocksize;
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* } formats[];
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* };
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*
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* userland initializes nformats to the number of allocated formats[] records.
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* On exit we set nformats to the number of records we've actually initialized.
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*/
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static int ide_floppy_get_format_capacities(ide_drive_t *drive, int __user *arg)
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{
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struct ide_floppy_obj *floppy = drive->driver_data;
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struct ide_atapi_pc pc;
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u8 header_len, desc_cnt;
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int i, blocks, length, u_array_size, u_index;
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int __user *argp;
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if (get_user(u_array_size, arg))
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return -EFAULT;
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if (u_array_size <= 0)
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return -EINVAL;
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idefloppy_create_read_capacity_cmd(&pc);
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if (ide_queue_pc_tail(drive, floppy->disk, &pc)) {
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printk(KERN_ERR "ide-floppy: Can't get floppy parameters\n");
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return -EIO;
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}
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header_len = pc.buf[3];
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desc_cnt = header_len / 8; /* capacity descriptor of 8 bytes */
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u_index = 0;
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argp = arg + 1;
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/*
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* We always skip the first capacity descriptor. That's the current
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* capacity. We are interested in the remaining descriptors, the
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* formattable capacities.
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*/
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for (i = 1; i < desc_cnt; i++) {
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unsigned int desc_start = 4 + i*8;
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if (u_index >= u_array_size)
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break; /* User-supplied buffer too small */
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blocks = be32_to_cpup((__be32 *)&pc.buf[desc_start]);
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length = be16_to_cpup((__be16 *)&pc.buf[desc_start + 6]);
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if (put_user(blocks, argp))
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return -EFAULT;
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++argp;
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if (put_user(length, argp))
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return -EFAULT;
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++argp;
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++u_index;
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}
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if (put_user(u_index, arg))
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return -EFAULT;
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return 0;
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}
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/*
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* Get ATAPI_FORMAT_UNIT progress indication.
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*
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* Userland gives a pointer to an int. The int is set to a progress
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* indicator 0-65536, with 65536=100%.
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*
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* If the drive does not support format progress indication, we just check
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* the dsc bit, and return either 0 or 65536.
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*/
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static int ide_floppy_get_format_progress(ide_drive_t *drive, int __user *arg)
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{
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idefloppy_floppy_t *floppy = drive->driver_data;
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struct ide_atapi_pc pc;
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int progress_indication = 0x10000;
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if (drive->atapi_flags & IDE_AFLAG_SRFP) {
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idefloppy_create_request_sense_cmd(&pc);
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if (ide_queue_pc_tail(drive, floppy->disk, &pc))
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return -EIO;
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if (floppy->sense_key == 2 &&
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floppy->asc == 4 &&
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floppy->ascq == 4)
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progress_indication = floppy->progress_indication;
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/* Else assume format_unit has finished, and we're at 0x10000 */
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} else {
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ide_hwif_t *hwif = drive->hwif;
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unsigned long flags;
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u8 stat;
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local_irq_save(flags);
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stat = hwif->tp_ops->read_status(hwif);
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local_irq_restore(flags);
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progress_indication = ((stat & ATA_DSC) == 0) ? 0 : 0x10000;
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}
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if (put_user(progress_indication, arg))
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return -EFAULT;
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return 0;
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}
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static sector_t idefloppy_capacity(ide_drive_t *drive)
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{
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idefloppy_floppy_t *floppy = drive->driver_data;
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@ -1118,73 +906,6 @@ static int ide_floppy_lockdoor(ide_drive_t *drive, struct ide_atapi_pc *pc,
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return 0;
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}
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static int ide_floppy_format_unit(ide_drive_t *drive, int __user *arg)
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{
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idefloppy_floppy_t *floppy = drive->driver_data;
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struct ide_atapi_pc pc;
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int blocks, length, flags, err = 0;
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if (floppy->openers > 1) {
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/* Don't format if someone is using the disk */
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drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS;
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return -EBUSY;
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}
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drive->atapi_flags |= IDE_AFLAG_FORMAT_IN_PROGRESS;
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/*
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* Send ATAPI_FORMAT_UNIT to the drive.
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*
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* Userland gives us the following structure:
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*
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* struct idefloppy_format_command {
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* int nblocks;
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* int blocksize;
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* int flags;
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* } ;
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*
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* flags is a bitmask, currently, the only defined flag is:
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*
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* 0x01 - verify media after format.
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*/
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if (get_user(blocks, arg) ||
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get_user(length, arg+1) ||
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get_user(flags, arg+2)) {
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err = -EFAULT;
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goto out;
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}
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(void) idefloppy_get_sfrp_bit(drive);
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idefloppy_create_format_unit_cmd(&pc, blocks, length, flags);
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if (ide_queue_pc_tail(drive, floppy->disk, &pc))
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err = -EIO;
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out:
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if (err)
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drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS;
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return err;
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}
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static int ide_floppy_format_ioctl(ide_drive_t *drive, struct file *file,
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unsigned int cmd, void __user *argp)
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{
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switch (cmd) {
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case IDEFLOPPY_IOCTL_FORMAT_SUPPORTED:
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return 0;
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case IDEFLOPPY_IOCTL_FORMAT_GET_CAPACITY:
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return ide_floppy_get_format_capacities(drive, argp);
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case IDEFLOPPY_IOCTL_FORMAT_START:
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if (!(file->f_mode & 2))
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return -EPERM;
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return ide_floppy_format_unit(drive, (int __user *)argp);
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case IDEFLOPPY_IOCTL_FORMAT_GET_PROGRESS:
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return ide_floppy_get_format_progress(drive, argp);
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default:
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return -ENOTTY;
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}
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}
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static int idefloppy_ioctl(struct inode *inode, struct file *file,
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unsigned int cmd, unsigned long arg)
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{
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@ -1316,6 +1037,7 @@ static int __init idefloppy_init(void)
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}
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MODULE_ALIAS("ide:*m-floppy*");
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MODULE_ALIAS("ide-floppy");
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module_init(idefloppy_init);
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module_exit(idefloppy_exit);
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MODULE_LICENSE("GPL");
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63
drivers/ide/ide-floppy.h
Normal file
63
drivers/ide/ide-floppy.h
Normal file
@ -0,0 +1,63 @@
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#ifndef __IDE_FLOPPY_H
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#define __IDE_FLOPPY_H
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/*
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* Most of our global data which we need to save even as we leave the driver
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* due to an interrupt or a timer event is stored in a variable of type
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* idefloppy_floppy_t, defined below.
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*/
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typedef struct ide_floppy_obj {
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ide_drive_t *drive;
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ide_driver_t *driver;
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struct gendisk *disk;
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struct kref kref;
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unsigned int openers; /* protected by BKL for now */
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/* Current packet command */
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struct ide_atapi_pc *pc;
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/* Last failed packet command */
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struct ide_atapi_pc *failed_pc;
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/* used for blk_{fs,pc}_request() requests */
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struct ide_atapi_pc queued_pc;
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struct ide_atapi_pc request_sense_pc;
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struct request request_sense_rq;
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/* Last error information */
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u8 sense_key, asc, ascq;
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/* delay this long before sending packet command */
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u8 ticks;
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int progress_indication;
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/* Device information */
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/* Current format */
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int blocks, block_size, bs_factor;
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/* Last format capacity descriptor */
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u8 cap_desc[8];
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/* Copy of the flexible disk page */
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u8 flexible_disk_page[32];
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} idefloppy_floppy_t;
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/*
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* Pages of the SELECT SENSE / MODE SENSE packet commands.
|
||||
* See SFF-8070i spec.
|
||||
*/
|
||||
#define IDEFLOPPY_CAPABILITIES_PAGE 0x1b
|
||||
#define IDEFLOPPY_FLEXIBLE_DISK_PAGE 0x05
|
||||
|
||||
/* IOCTLs used in low-level formatting. */
|
||||
#define IDEFLOPPY_IOCTL_FORMAT_SUPPORTED 0x4600
|
||||
#define IDEFLOPPY_IOCTL_FORMAT_GET_CAPACITY 0x4601
|
||||
#define IDEFLOPPY_IOCTL_FORMAT_START 0x4602
|
||||
#define IDEFLOPPY_IOCTL_FORMAT_GET_PROGRESS 0x4603
|
||||
|
||||
/* ide-floppy.c */
|
||||
void ide_floppy_create_mode_sense_cmd(struct ide_atapi_pc *, u8);
|
||||
void ide_floppy_create_read_capacity_cmd(struct ide_atapi_pc *);
|
||||
void ide_floppy_create_request_sense_cmd(struct ide_atapi_pc *);
|
||||
|
||||
/* ide-floppy_ioctl.c */
|
||||
int ide_floppy_format_ioctl(ide_drive_t *, struct file *, unsigned int,
|
||||
void __user *);
|
||||
|
||||
#endif /*__IDE_FLOPPY_H */
|
||||
243
drivers/ide/ide-floppy_ioctl.c
Normal file
243
drivers/ide/ide-floppy_ioctl.c
Normal file
@ -0,0 +1,243 @@
|
||||
/*
|
||||
* ide-floppy IOCTLs handling.
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/ide.h>
|
||||
#include <linux/cdrom.h>
|
||||
|
||||
#include <asm/unaligned.h>
|
||||
|
||||
#include <scsi/scsi_ioctl.h>
|
||||
|
||||
#include "ide-floppy.h"
|
||||
|
||||
/*
|
||||
* Obtain the list of formattable capacities.
|
||||
* Very similar to ide_floppy_get_capacity, except that we push the capacity
|
||||
* descriptors to userland, instead of our own structures.
|
||||
*
|
||||
* Userland gives us the following structure:
|
||||
*
|
||||
* struct idefloppy_format_capacities {
|
||||
* int nformats;
|
||||
* struct {
|
||||
* int nblocks;
|
||||
* int blocksize;
|
||||
* } formats[];
|
||||
* };
|
||||
*
|
||||
* userland initializes nformats to the number of allocated formats[] records.
|
||||
* On exit we set nformats to the number of records we've actually initialized.
|
||||
*/
|
||||
|
||||
static int ide_floppy_get_format_capacities(ide_drive_t *drive, int __user *arg)
|
||||
{
|
||||
struct ide_floppy_obj *floppy = drive->driver_data;
|
||||
struct ide_atapi_pc pc;
|
||||
u8 header_len, desc_cnt;
|
||||
int i, blocks, length, u_array_size, u_index;
|
||||
int __user *argp;
|
||||
|
||||
if (get_user(u_array_size, arg))
|
||||
return -EFAULT;
|
||||
|
||||
if (u_array_size <= 0)
|
||||
return -EINVAL;
|
||||
|
||||
ide_floppy_create_read_capacity_cmd(&pc);
|
||||
if (ide_queue_pc_tail(drive, floppy->disk, &pc)) {
|
||||
printk(KERN_ERR "ide-floppy: Can't get floppy parameters\n");
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
header_len = pc.buf[3];
|
||||
desc_cnt = header_len / 8; /* capacity descriptor of 8 bytes */
|
||||
|
||||
u_index = 0;
|
||||
argp = arg + 1;
|
||||
|
||||
/*
|
||||
* We always skip the first capacity descriptor. That's the current
|
||||
* capacity. We are interested in the remaining descriptors, the
|
||||
* formattable capacities.
|
||||
*/
|
||||
for (i = 1; i < desc_cnt; i++) {
|
||||
unsigned int desc_start = 4 + i*8;
|
||||
|
||||
if (u_index >= u_array_size)
|
||||
break; /* User-supplied buffer too small */
|
||||
|
||||
blocks = be32_to_cpup((__be32 *)&pc.buf[desc_start]);
|
||||
length = be16_to_cpup((__be16 *)&pc.buf[desc_start + 6]);
|
||||
|
||||
if (put_user(blocks, argp))
|
||||
return -EFAULT;
|
||||
|
||||
++argp;
|
||||
|
||||
if (put_user(length, argp))
|
||||
return -EFAULT;
|
||||
|
||||
++argp;
|
||||
|
||||
++u_index;
|
||||
}
|
||||
|
||||
if (put_user(u_index, arg))
|
||||
return -EFAULT;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void ide_floppy_create_format_unit_cmd(struct ide_atapi_pc *pc, int b,
|
||||
int l, int flags)
|
||||
{
|
||||
ide_init_pc(pc);
|
||||
pc->c[0] = GPCMD_FORMAT_UNIT;
|
||||
pc->c[1] = 0x17;
|
||||
|
||||
memset(pc->buf, 0, 12);
|
||||
pc->buf[1] = 0xA2;
|
||||
/* Default format list header, u8 1: FOV/DCRT/IMM bits set */
|
||||
|
||||
if (flags & 1) /* Verify bit on... */
|
||||
pc->buf[1] ^= 0x20; /* ... turn off DCRT bit */
|
||||
pc->buf[3] = 8;
|
||||
|
||||
put_unaligned(cpu_to_be32(b), (unsigned int *)(&pc->buf[4]));
|
||||
put_unaligned(cpu_to_be32(l), (unsigned int *)(&pc->buf[8]));
|
||||
pc->buf_size = 12;
|
||||
pc->flags |= PC_FLAG_WRITING;
|
||||
}
|
||||
|
||||
static int ide_floppy_get_sfrp_bit(ide_drive_t *drive)
|
||||
{
|
||||
idefloppy_floppy_t *floppy = drive->driver_data;
|
||||
struct ide_atapi_pc pc;
|
||||
|
||||
drive->atapi_flags &= ~IDE_AFLAG_SRFP;
|
||||
|
||||
ide_floppy_create_mode_sense_cmd(&pc, IDEFLOPPY_CAPABILITIES_PAGE);
|
||||
pc.flags |= PC_FLAG_SUPPRESS_ERROR;
|
||||
|
||||
if (ide_queue_pc_tail(drive, floppy->disk, &pc))
|
||||
return 1;
|
||||
|
||||
if (pc.buf[8 + 2] & 0x40)
|
||||
drive->atapi_flags |= IDE_AFLAG_SRFP;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int ide_floppy_format_unit(ide_drive_t *drive, int __user *arg)
|
||||
{
|
||||
idefloppy_floppy_t *floppy = drive->driver_data;
|
||||
struct ide_atapi_pc pc;
|
||||
int blocks, length, flags, err = 0;
|
||||
|
||||
if (floppy->openers > 1) {
|
||||
/* Don't format if someone is using the disk */
|
||||
drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS;
|
||||
return -EBUSY;
|
||||
}
|
||||
|
||||
drive->atapi_flags |= IDE_AFLAG_FORMAT_IN_PROGRESS;
|
||||
|
||||
/*
|
||||
* Send ATAPI_FORMAT_UNIT to the drive.
|
||||
*
|
||||
* Userland gives us the following structure:
|
||||
*
|
||||
* struct idefloppy_format_command {
|
||||
* int nblocks;
|
||||
* int blocksize;
|
||||
* int flags;
|
||||
* } ;
|
||||
*
|
||||
* flags is a bitmask, currently, the only defined flag is:
|
||||
*
|
||||
* 0x01 - verify media after format.
|
||||
*/
|
||||
if (get_user(blocks, arg) ||
|
||||
get_user(length, arg+1) ||
|
||||
get_user(flags, arg+2)) {
|
||||
err = -EFAULT;
|
||||
goto out;
|
||||
}
|
||||
|
||||
(void)ide_floppy_get_sfrp_bit(drive);
|
||||
ide_floppy_create_format_unit_cmd(&pc, blocks, length, flags);
|
||||
|
||||
if (ide_queue_pc_tail(drive, floppy->disk, &pc))
|
||||
err = -EIO;
|
||||
|
||||
out:
|
||||
if (err)
|
||||
drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS;
|
||||
return err;
|
||||
}
|
||||
|
||||
/*
|
||||
* Get ATAPI_FORMAT_UNIT progress indication.
|
||||
*
|
||||
* Userland gives a pointer to an int. The int is set to a progress
|
||||
* indicator 0-65536, with 65536=100%.
|
||||
*
|
||||
* If the drive does not support format progress indication, we just check
|
||||
* the dsc bit, and return either 0 or 65536.
|
||||
*/
|
||||
|
||||
static int ide_floppy_get_format_progress(ide_drive_t *drive, int __user *arg)
|
||||
{
|
||||
idefloppy_floppy_t *floppy = drive->driver_data;
|
||||
struct ide_atapi_pc pc;
|
||||
int progress_indication = 0x10000;
|
||||
|
||||
if (drive->atapi_flags & IDE_AFLAG_SRFP) {
|
||||
ide_floppy_create_request_sense_cmd(&pc);
|
||||
if (ide_queue_pc_tail(drive, floppy->disk, &pc))
|
||||
return -EIO;
|
||||
|
||||
if (floppy->sense_key == 2 &&
|
||||
floppy->asc == 4 &&
|
||||
floppy->ascq == 4)
|
||||
progress_indication = floppy->progress_indication;
|
||||
|
||||
/* Else assume format_unit has finished, and we're at 0x10000 */
|
||||
} else {
|
||||
ide_hwif_t *hwif = drive->hwif;
|
||||
unsigned long flags;
|
||||
u8 stat;
|
||||
|
||||
local_irq_save(flags);
|
||||
stat = hwif->tp_ops->read_status(hwif);
|
||||
local_irq_restore(flags);
|
||||
|
||||
progress_indication = ((stat & ATA_DSC) == 0) ? 0 : 0x10000;
|
||||
}
|
||||
|
||||
if (put_user(progress_indication, arg))
|
||||
return -EFAULT;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int ide_floppy_format_ioctl(ide_drive_t *drive, struct file *file,
|
||||
unsigned int cmd, void __user *argp)
|
||||
{
|
||||
switch (cmd) {
|
||||
case IDEFLOPPY_IOCTL_FORMAT_SUPPORTED:
|
||||
return 0;
|
||||
case IDEFLOPPY_IOCTL_FORMAT_GET_CAPACITY:
|
||||
return ide_floppy_get_format_capacities(drive, argp);
|
||||
case IDEFLOPPY_IOCTL_FORMAT_START:
|
||||
if (!(file->f_mode & 2))
|
||||
return -EPERM;
|
||||
return ide_floppy_format_unit(drive, (int __user *)argp);
|
||||
case IDEFLOPPY_IOCTL_FORMAT_GET_PROGRESS:
|
||||
return ide_floppy_get_format_progress(drive, argp);
|
||||
default:
|
||||
return -ENOTTY;
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user