^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * IDE ioctls handling.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <linux/compat.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/export.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/hdreg.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/ide.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) static int put_user_long(long val, unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) if (in_compat_syscall())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) return put_user(val, (compat_long_t __user *)compat_ptr(arg));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) return put_user(val, (long __user *)arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) static const struct ide_ioctl_devset ide_ioctl_settings[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) { HDIO_GET_32BIT, HDIO_SET_32BIT, &ide_devset_io_32bit },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) { HDIO_GET_KEEPSETTINGS, HDIO_SET_KEEPSETTINGS, &ide_devset_keepsettings },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) { HDIO_GET_UNMASKINTR, HDIO_SET_UNMASKINTR, &ide_devset_unmaskirq },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) { HDIO_GET_DMA, HDIO_SET_DMA, &ide_devset_using_dma },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) { -1, HDIO_SET_PIO_MODE, &ide_devset_pio_mode },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) { 0 }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) int ide_setting_ioctl(ide_drive_t *drive, struct block_device *bdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) unsigned int cmd, unsigned long arg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) const struct ide_ioctl_devset *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) const struct ide_devset *ds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) int err = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) for (; (ds = s->setting); s++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) if (ds->get && s->get_ioctl == cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) goto read_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) else if (ds->set && s->set_ioctl == cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) goto set_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) read_val:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) mutex_lock(&ide_setting_mtx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) err = ds->get(drive);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) mutex_unlock(&ide_setting_mtx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) return err >= 0 ? put_user_long(err, arg) : err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) set_val:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) if (bdev_is_partition(bdev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) if (!capable(CAP_SYS_ADMIN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) err = -EACCES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) mutex_lock(&ide_setting_mtx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) err = ide_devset_execute(drive, ds, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) mutex_unlock(&ide_setting_mtx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) EXPORT_SYMBOL_GPL(ide_setting_ioctl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) static int ide_get_identity_ioctl(ide_drive_t *drive, unsigned int cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) void __user *argp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) u16 *id = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) int size = (cmd == HDIO_GET_IDENTITY) ? (ATA_ID_WORDS * 2) : 142;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) int rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) if ((drive->dev_flags & IDE_DFLAG_ID_READ) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) rc = -ENOMSG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) /* ata_id_to_hd_driveid() relies on 'id' to be fully allocated. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) id = kmalloc(ATA_ID_WORDS * 2, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) if (id == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) memcpy(id, drive->id, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) ata_id_to_hd_driveid(id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) if (copy_to_user(argp, id, size))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) rc = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) kfree(id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) static int ide_get_nice_ioctl(ide_drive_t *drive, unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) return put_user_long((!!(drive->dev_flags & IDE_DFLAG_DSC_OVERLAP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) << IDE_NICE_DSC_OVERLAP) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) (!!(drive->dev_flags & IDE_DFLAG_NICE1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) << IDE_NICE_1), arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) static int ide_set_nice_ioctl(ide_drive_t *drive, unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) if (arg != (arg & ((1 << IDE_NICE_DSC_OVERLAP) | (1 << IDE_NICE_1))))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) return -EPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) if (((arg >> IDE_NICE_DSC_OVERLAP) & 1) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) (drive->media != ide_tape))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) return -EPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) if ((arg >> IDE_NICE_DSC_OVERLAP) & 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) drive->dev_flags |= IDE_DFLAG_DSC_OVERLAP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) drive->dev_flags &= ~IDE_DFLAG_DSC_OVERLAP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) if ((arg >> IDE_NICE_1) & 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) drive->dev_flags |= IDE_DFLAG_NICE1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) drive->dev_flags &= ~IDE_DFLAG_NICE1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) static int ide_cmd_ioctl(ide_drive_t *drive, void __user *argp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) u8 *buf = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) int bufsize = 0, err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) u8 args[4], xfer_rate = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) struct ide_cmd cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) struct ide_taskfile *tf = &cmd.tf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) if (NULL == argp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) struct request *rq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) ide_req(rq)->type = ATA_PRIV_TASKFILE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) blk_execute_rq(drive->queue, NULL, rq, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) err = scsi_req(rq)->result ? -EIO : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) blk_put_request(rq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) if (copy_from_user(args, argp, 4))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) memset(&cmd, 0, sizeof(cmd));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) tf->feature = args[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) if (args[0] == ATA_CMD_SMART) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) tf->nsect = args[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) tf->lbal = args[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) tf->lbam = ATA_SMART_LBAM_PASS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) tf->lbah = ATA_SMART_LBAH_PASS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) cmd.valid.out.tf = IDE_VALID_OUT_TF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) cmd.valid.in.tf = IDE_VALID_NSECT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) tf->nsect = args[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) cmd.valid.out.tf = IDE_VALID_FEATURE | IDE_VALID_NSECT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) cmd.valid.in.tf = IDE_VALID_NSECT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) tf->command = args[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) cmd.protocol = args[3] ? ATA_PROT_PIO : ATA_PROT_NODATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) if (args[3]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) cmd.tf_flags |= IDE_TFLAG_IO_16BIT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) bufsize = SECTOR_SIZE * args[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) buf = kzalloc(bufsize, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) if (buf == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) if (tf->command == ATA_CMD_SET_FEATURES &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) tf->feature == SETFEATURES_XFER &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) tf->nsect >= XFER_SW_DMA_0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) xfer_rate = ide_find_dma_mode(drive, tf->nsect);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) if (xfer_rate != tf->nsect) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) goto abort;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) cmd.tf_flags |= IDE_TFLAG_SET_XFER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) err = ide_raw_taskfile(drive, &cmd, buf, args[3]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) args[0] = tf->status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) args[1] = tf->error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) args[2] = tf->nsect;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) abort:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) if (copy_to_user(argp, &args, 4))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) err = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) if (buf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) if (copy_to_user((argp + 4), buf, bufsize))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) err = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) kfree(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) static int ide_task_ioctl(ide_drive_t *drive, void __user *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) u8 args[7];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) struct ide_cmd cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) if (copy_from_user(args, p, 7))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) memset(&cmd, 0, sizeof(cmd));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) memcpy(&cmd.tf.feature, &args[1], 6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) cmd.tf.command = args[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) err = ide_no_data_taskfile(drive, &cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) args[0] = cmd.tf.command;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) memcpy(&args[1], &cmd.tf.feature, 6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) if (copy_to_user(p, args, 7))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) err = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) static int generic_drive_reset(ide_drive_t *drive)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) struct request *rq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) ide_req(rq)->type = ATA_PRIV_MISC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) scsi_req(rq)->cmd_len = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) scsi_req(rq)->cmd[0] = REQ_DRIVE_RESET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) blk_execute_rq(drive->queue, NULL, rq, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) ret = scsi_req(rq)->result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) blk_put_request(rq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) int generic_ide_ioctl(ide_drive_t *drive, struct block_device *bdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) unsigned int cmd, unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) void __user *argp = (void __user *)arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) if (in_compat_syscall())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) argp = compat_ptr(arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) err = ide_setting_ioctl(drive, bdev, cmd, arg, ide_ioctl_settings);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) if (err != -EOPNOTSUPP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) switch (cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) case HDIO_OBSOLETE_IDENTITY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) case HDIO_GET_IDENTITY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) if (bdev_is_partition(bdev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) return ide_get_identity_ioctl(drive, cmd, argp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) case HDIO_GET_NICE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) return ide_get_nice_ioctl(drive, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) case HDIO_SET_NICE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) if (!capable(CAP_SYS_ADMIN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) return -EACCES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) return ide_set_nice_ioctl(drive, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) #ifdef CONFIG_IDE_TASK_IOCTL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) case HDIO_DRIVE_TASKFILE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) return -EACCES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) /* missing compat handler for HDIO_DRIVE_TASKFILE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) if (in_compat_syscall())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) return -ENOTTY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) if (drive->media == ide_disk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) return ide_taskfile_ioctl(drive, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) return -ENOMSG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) case HDIO_DRIVE_CMD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) if (!capable(CAP_SYS_RAWIO))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) return -EACCES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) return ide_cmd_ioctl(drive, argp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) case HDIO_DRIVE_TASK:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) if (!capable(CAP_SYS_RAWIO))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) return -EACCES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) return ide_task_ioctl(drive, argp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) case HDIO_DRIVE_RESET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) if (!capable(CAP_SYS_ADMIN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) return -EACCES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) return generic_drive_reset(drive);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) case HDIO_GET_BUSSTATE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) if (!capable(CAP_SYS_ADMIN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) return -EACCES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) if (put_user_long(BUSSTATE_ON, arg))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) case HDIO_SET_BUSSTATE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) if (!capable(CAP_SYS_ADMIN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) return -EACCES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) EXPORT_SYMBOL(generic_ide_ioctl);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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