---------------------------
+What: ide-tape driver
+When: July 2008
+Files: drivers/ide/ide-tape.c
+Why: This driver might not have any users anymore and maintaining it for no
+ reason is an effort no one wants to make.
+Who: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>, Borislav Petkov
+ <petkovbb@googlemail.com>
+
+---------------------------
+
What: libata spindown skipping and warning
When: Dec 2008
Why: Some halt(8) implementations synchronize caches for and spin
As for VLB, it is safest to not specify it.
Bigger values are safer than smaller ones.
- "idex=noprobe" : do not attempt to access/use this interface
-
"idex=base" : probe for an interface at the addr specified,
where "base" is usually 0x1f0 or 0x170
and "ctl" is assumed to be "base"+0x206
kernel paremeter to enable probing for VLB version of the chipset (PCI ones
are detected automatically).
-================================================================================
-
-IDE ATAPI streaming tape driver
--------------------------------
-
-This driver is a part of the Linux ide driver and works in co-operation
-with linux/drivers/block/ide.c.
-
-The driver, in co-operation with ide.c, basically traverses the
-request-list for the block device interface. The character device
-interface, on the other hand, creates new requests, adds them
-to the request-list of the block device, and waits for their completion.
-
-Pipelined operation mode is now supported on both reads and writes.
-
-The block device major and minor numbers are determined from the
-tape's relative position in the ide interfaces, as explained in ide.c.
-
-The character device interface consists of the following devices:
-
- ht0 major 37, minor 0 first IDE tape, rewind on close.
- ht1 major 37, minor 1 second IDE tape, rewind on close.
- ...
- nht0 major 37, minor 128 first IDE tape, no rewind on close.
- nht1 major 37, minor 129 second IDE tape, no rewind on close.
- ...
-
-Run /dev/MAKEDEV to create the above entries.
-
-The general magnetic tape commands compatible interface, as defined by
-include/linux/mtio.h, is accessible through the character device.
-
-General ide driver configuration options, such as the interrupt-unmask
-flag, can be configured by issuing an ioctl to the block device interface,
-as any other ide device.
-
-Our own ide-tape ioctl's can be issued to either the block device or
-the character device interface.
-
-Maximal throughput with minimal bus load will usually be achieved in the
-following scenario:
-
- 1. ide-tape is operating in the pipelined operation mode.
- 2. No buffering is performed by the user backup program.
-
-
-
================================================================================
Some Terminology
* and attempt to recover if there are problems. Returns 0 if everything's
* ok; nonzero if the request has been terminated.
*/
-static
-int ide_cd_check_ireason(ide_drive_t *drive, int len, int ireason, int rw)
+static int ide_cd_check_ireason(ide_drive_t *drive, struct request *rq,
+ int len, int ireason, int rw)
{
/*
* ireason == 0: the drive wants to receive data from us
drive->name, __FUNCTION__, ireason);
}
+ if (rq->cmd_type == REQ_TYPE_ATA_PC)
+ rq->cmd_flags |= REQ_FAILED;
+
cdrom_end_request(drive, 0);
return -1;
}
/*
* check which way to transfer data
*/
- if (blk_fs_request(rq) || blk_pc_request(rq)) {
- if (ide_cd_check_ireason(drive, len, ireason, write))
- return ide_stopped;
+ if (ide_cd_check_ireason(drive, rq, len, ireason, write))
+ return ide_stopped;
- if (blk_fs_request(rq) && write == 0) {
+ if (blk_fs_request(rq)) {
+ if (write == 0) {
int nskip;
if (ide_cd_check_transfer_size(drive, len)) {
if (ireason == 0) {
write = 1;
xferfunc = HWIF(drive)->atapi_output_bytes;
- } else if (ireason == 2 || (ireason == 1 &&
- (blk_fs_request(rq) || blk_pc_request(rq)))) {
+ } else {
write = 0;
xferfunc = HWIF(drive)->atapi_input_bytes;
- } else {
- printk(KERN_ERR "%s: %s: The drive "
- "appears confused (ireason = 0x%02x). "
- "Trying to recover by ending request.\n",
- drive->name, __FUNCTION__, ireason);
- goto end_request;
}
/*
else
rq->data += blen;
}
+ if (!write && blk_sense_request(rq))
+ rq->sense_len += blen;
}
- if (write && blk_sense_request(rq))
- rq->sense_len += thislen;
-
/*
* pad, if necessary
*/
{ "MATSHITADVD-ROM SR-8186", NULL, IDE_CD_FLAG_PLAY_AUDIO_OK },
{ "MATSHITADVD-ROM SR-8176", NULL, IDE_CD_FLAG_PLAY_AUDIO_OK },
{ "MATSHITADVD-ROM SR-8174", NULL, IDE_CD_FLAG_PLAY_AUDIO_OK },
+ { "Optiarc DVD RW AD-5200A", NULL, IDE_CD_FLAG_PLAY_AUDIO_OK },
{ NULL, NULL, 0 }
};
/* Only print cache size when it was specified */
if (id->buf_size)
- printk (" w/%dKiB Cache", id->buf_size/2);
+ printk(KERN_CONT " w/%dKiB Cache", id->buf_size / 2);
printk(KERN_CONT ", CHS=%d/%d/%d\n",
drive->bios_cyl, drive->bios_head, drive->bios_sect);
return;
}
- printk("Shutdown: %s\n", drive->name);
+ printk(KERN_INFO "Shutdown: %s\n", drive->name);
+
drive->gendev.bus->suspend(&drive->gendev, PMSG_SUSPEND);
}
/*
+ * IDE DMA support (including IDE PCI BM-DMA).
+ *
* Copyright (C) 1995-1998 Mark Lord
* Copyright (C) 1999-2000 Andre Hedrick <andre@linux-ide.org>
* Copyright (C) 2004, 2007 Bartlomiej Zolnierkiewicz
*
* May be copied or modified under the terms of the GNU General Public License
+ *
+ * DMA is supported for all IDE devices (disk drives, cdroms, tapes, floppies).
*/
/*
*/
/*
- * This module provides support for the bus-master IDE DMA functions
- * of various PCI chipsets, including the Intel PIIX (i82371FB for
- * the 430 FX chipset), the PIIX3 (i82371SB for the 430 HX/VX and
- * 440 chipsets), and the PIIX4 (i82371AB for the 430 TX chipset)
- * ("PIIX" stands for "PCI ISA IDE Xcellerator").
- *
- * Pretty much the same code works for other IDE PCI bus-mastering chipsets.
- *
- * DMA is supported for all IDE devices (disk drives, cdroms, tapes, floppies).
- *
- * By default, DMA support is prepared for use, but is currently enabled only
- * for drives which already have DMA enabled (UltraDMA or mode 2 multi/single),
- * or which are recognized as "good" (see table below). Drives with only mode0
- * or mode1 (multi/single) DMA should also work with this chipset/driver
- * (eg. MC2112A) but are not enabled by default.
- *
- * Use "hdparm -i" to view modes supported by a given drive.
- *
- * The hdparm-3.5 (or later) utility can be used for manually enabling/disabling
- * DMA support, but must be (re-)compiled against this kernel version or later.
- *
- * To enable DMA, use "hdparm -d1 /dev/hd?" on a per-drive basis after booting.
- * If problems arise, ide.c will disable DMA operation after a few retries.
- * This error recovery mechanism works and has been extremely well exercised.
- *
- * IDE drives, depending on their vintage, may support several different modes
- * of DMA operation. The boot-time modes are indicated with a "*" in
- * the "hdparm -i" listing, and can be changed with *knowledgeable* use of
- * the "hdparm -X" feature. There is seldom a need to do this, as drives
- * normally power-up with their "best" PIO/DMA modes enabled.
- *
- * Testing has been done with a rather extensive number of drives,
- * with Quantum & Western Digital models generally outperforming the pack,
- * and Fujitsu & Conner (and some Seagate which are really Conner) drives
- * showing more lackluster throughput.
- *
- * Keep an eye on /var/adm/messages for "DMA disabled" messages.
- *
- * Some people have reported trouble with Intel Zappa motherboards.
- * This can be fixed by upgrading the AMI BIOS to version 1.00.04.BS0,
- * available from ftp://ftp.intel.com/pub/bios/10004bs0.exe
- * (thanks to Glen Morrell <glen@spin.Stanford.edu> for researching this).
- *
* Thanks to "Christopher J. Reimer" <reimer@doe.carleton.ca> for
* fixing the problem with the BIOS on some Acer motherboards.
*
*
* Most importantly, thanks to Robert Bringman <rob@mars.trion.com>
* for supplying a Promise UDMA board & WD UDMA drive for this work!
- *
- * And, yes, Intel Zappa boards really *do* use both PIIX IDE ports.
- *
- * ATA-66/100 and recovery functions, I forgot the rest......
- *
*/
#include <linux/module.h>
BUG_ON(hwif->present);
- if (hwif->noprobe)
+ if (hwif->noprobe ||
+ (hwif->drives[0].noprobe && hwif->drives[1].noprobe))
return -EACCES;
/*
g->fops = &idetape_block_ops;
ide_register_region(g);
+ printk(KERN_WARNING "It is possible that this driver does not have any"
+ " users anymore and, as a result, it will be REMOVED soon."
+ " Please notify Bart <bzolnier@gmail.com> or Boris"
+ " <petkovbb@gmail.com> in case you still need it.\n");
+
return 0;
out_free_tape:
hwif->extra_ports = 0;
}
- /*
- * Note that we only release the standard ports,
- * and do not even try to handle any extra ports
- * allocated for weird IDE interface chipsets.
- */
ide_hwif_release_regions(hwif);
/* copy original settings */
drive->nice1 = (arg >> IDE_NICE_1) & 1;
return 0;
case HDIO_DRIVE_RESET:
- {
- unsigned long flags;
- if (!capable(CAP_SYS_ADMIN)) return -EACCES;
-
+ if (!capable(CAP_SYS_ADMIN))
+ return -EACCES;
+
/*
* Abort the current command on the
* group if there is one, taking
ide_abort(drive, "drive reset");
BUG_ON(HWGROUP(drive)->handler);
-
+
/* Ensure nothing gets queued after we
drop the lock. Reset will clear the busy */
-
+
HWGROUP(drive)->busy = 1;
spin_unlock_irqrestore(&ide_lock, flags);
(void) ide_do_reset(drive);
return 0;
- }
-
case HDIO_GET_BUSSTATE:
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
case -1: /* "noprobe" */
hwif->noprobe = 1;
- goto done;
+ goto obsolete_option;
case 1: /* base */
vals[1] = vals[0] + 0x206; /* default ctl */
hwif->drives[1].drive_data = t2;
}
-/*
- * qd_unsetup:
- *
- * called to unsetup an ata channel : back to default values, unlinks tuning
- */
-/*
-static void __exit qd_unsetup(ide_hwif_t *hwif)
-{
- u8 config = hwif->config_data;
- int base = hwif->select_data;
- void *set_pio_mode = (void *)hwif->set_pio_mode;
-
- if (hwif->chipset != ide_qd65xx)
- return;
-
- printk(KERN_NOTICE "%s: back to defaults\n", hwif->name);
-
- hwif->selectproc = NULL;
- hwif->set_pio_mode = NULL;
-
- if (set_pio_mode == (void *)qd6500_set_pio_mode) {
- // will do it for both
- outb(QD6500_DEF_DATA, QD_TIMREG(&hwif->drives[0]));
- } else if (set_pio_mode == (void *)qd6580_set_pio_mode) {
- if (QD_CONTROL(hwif) & QD_CONTR_SEC_DISABLED) {
- outb(QD6580_DEF_DATA, QD_TIMREG(&hwif->drives[0]));
- outb(QD6580_DEF_DATA2, QD_TIMREG(&hwif->drives[1]));
- } else {
- outb(hwif->channel ? QD6580_DEF_DATA2 : QD6580_DEF_DATA, QD_TIMREG(&hwif->drives[0]));
- }
- } else {
- printk(KERN_WARNING "Unknown qd65xx tuning fonction !\n");
- printk(KERN_WARNING "keeping settings !\n");
- }
-}
-*/
-
static const struct ide_port_info qd65xx_port_info __initdata = {
.chipset = ide_qd65xx,
.host_flags = IDE_HFLAG_IO_32BIT |
printk(KERN_DEBUG "qd6580: config=%#x, control=%#x, ID3=%u\n",
config, control, QD_ID3);
+ outb(QD_DEF_CONTR, QD_CONTROL_PORT);
+
if (control & QD_CONTR_SEC_DISABLED) {
/* secondary disabled */
ide_device_add(idx, &qd65xx_port_info);
- outb(QD_DEF_CONTR, QD_CONTROL_PORT);
-
return 1;
} else {
ide_hwif_t *mate;
ide_device_add(idx, &qd65xx_port_info);
- outb(QD_DEF_CONTR, QD_CONTROL_PORT);
-
return 0; /* no other qd65xx possible */
}
}
/*
* Try to enable the secondary interface, if not already enabled
*/
- if (cmd_hwif1->noprobe) {
+ if (cmd_hwif1->noprobe ||
+ (cmd_hwif1->drives[0].noprobe && cmd_hwif1->drives[1].noprobe)) {
port2 = "not probed";
} else {
b = get_cmd640_reg(CNTRL);
if (rev < 3)
info = &hpt36x;
else {
- static const struct hpt_info *hpt37x_info[] =
- { &hpt370, &hpt370a, &hpt372, &hpt372n };
-
- info = hpt37x_info[min_t(u8, rev, 6) - 3];
+ switch (min_t(u8, rev, 6)) {
+ case 3: info = &hpt370; break;
+ case 4: info = &hpt370a; break;
+ case 5: info = &hpt372; break;
+ case 6: info = &hpt372n; break;
+ }
idx++;
}
break;
return ide_setup_pci_device(dev, &d);
}
-static const struct pci_device_id hpt366_pci_tbl[] = {
+static const struct pci_device_id hpt366_pci_tbl[] __devinitconst = {
{ PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT366), 0 },
{ PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT372), 1 },
{ PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT302), 2 },
projects / deliverable / linux.git / commitdiff
