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![Julia Lawall](/assets/img/avatar_default.png)
The ide_dma_ops structures are never modified, so declare these as const, as is already done for the others. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
715 lines
20 KiB
C
715 lines
20 KiB
C
/*
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* Copyright (C) 2004 Red Hat
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* Copyright (C) 2007 Bartlomiej Zolnierkiewicz
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*
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* May be copied or modified under the terms of the GNU General Public License
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* Based in part on the ITE vendor provided SCSI driver.
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*
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* Documentation:
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* Datasheet is freely available, some other documents under NDA.
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*
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* The ITE8212 isn't exactly a standard IDE controller. It has two
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* modes. In pass through mode then it is an IDE controller. In its smart
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* mode its actually quite a capable hardware raid controller disguised
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* as an IDE controller. Smart mode only understands DMA read/write and
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* identify, none of the fancier commands apply. The IT8211 is identical
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* in other respects but lacks the raid mode.
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*
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* Errata:
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* o Rev 0x10 also requires master/slave hold the same DMA timings and
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* cannot do ATAPI MWDMA.
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* o The identify data for raid volumes lacks CHS info (technically ok)
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* but also fails to set the LBA28 and other bits. We fix these in
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* the IDE probe quirk code.
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* o If you write LBA48 sized I/O's (ie > 256 sector) in smart mode
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* raid then the controller firmware dies
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* o Smart mode without RAID doesn't clear all the necessary identify
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* bits to reduce the command set to the one used
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*
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* This has a few impacts on the driver
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* - In pass through mode we do all the work you would expect
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* - In smart mode the clocking set up is done by the controller generally
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* but we must watch the other limits and filter.
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* - There are a few extra vendor commands that actually talk to the
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* controller but only work PIO with no IRQ.
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*
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* Vendor areas of the identify block in smart mode are used for the
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* timing and policy set up. Each HDD in raid mode also has a serial
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* block on the disk. The hardware extra commands are get/set chip status,
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* rebuild, get rebuild status.
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*
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* In Linux the driver supports pass through mode as if the device was
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* just another IDE controller. If the smart mode is running then
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* volumes are managed by the controller firmware and each IDE "disk"
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* is a raid volume. Even more cute - the controller can do automated
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* hotplug and rebuild.
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*
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* The pass through controller itself is a little demented. It has a
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* flaw that it has a single set of PIO/MWDMA timings per channel so
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* non UDMA devices restrict each others performance. It also has a
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* single clock source per channel so mixed UDMA100/133 performance
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* isn't perfect and we have to pick a clock. Thankfully none of this
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* matters in smart mode. ATAPI DMA is not currently supported.
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*
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* It seems the smart mode is a win for RAID1/RAID10 but otherwise not.
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*
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* TODO
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* - ATAPI UDMA is ok but not MWDMA it seems
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* - RAID configuration ioctls
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* - Move to libata once it grows up
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*/
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#include <linux/types.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/pci.h>
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#include <linux/ide.h>
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#include <linux/init.h>
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#define DRV_NAME "it821x"
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#define QUIRK_VORTEX86 1
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struct it821x_dev
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{
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unsigned int smart:1, /* Are we in smart raid mode */
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timing10:1; /* Rev 0x10 */
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u8 clock_mode; /* 0, ATA_50 or ATA_66 */
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u8 want[2][2]; /* Mode/Pri log for master slave */
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/* We need these for switching the clock when DMA goes on/off
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The high byte is the 66Mhz timing */
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u16 pio[2]; /* Cached PIO values */
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u16 mwdma[2]; /* Cached MWDMA values */
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u16 udma[2]; /* Cached UDMA values (per drive) */
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u16 quirks;
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};
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#define ATA_66 0
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#define ATA_50 1
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#define ATA_ANY 2
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#define UDMA_OFF 0
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#define MWDMA_OFF 0
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/*
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* We allow users to force the card into non raid mode without
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* flashing the alternative BIOS. This is also necessary right now
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* for embedded platforms that cannot run a PC BIOS but are using this
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* device.
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*/
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static int it8212_noraid;
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/**
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* it821x_program - program the PIO/MWDMA registers
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* @drive: drive to tune
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* @timing: timing info
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*
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* Program the PIO/MWDMA timing for this channel according to the
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* current clock.
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*/
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static void it821x_program(ide_drive_t *drive, u16 timing)
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{
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ide_hwif_t *hwif = drive->hwif;
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struct pci_dev *dev = to_pci_dev(hwif->dev);
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struct it821x_dev *itdev = ide_get_hwifdata(hwif);
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int channel = hwif->channel;
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u8 conf;
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/* Program PIO/MWDMA timing bits */
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if(itdev->clock_mode == ATA_66)
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conf = timing >> 8;
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else
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conf = timing & 0xFF;
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pci_write_config_byte(dev, 0x54 + 4 * channel, conf);
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}
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/**
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* it821x_program_udma - program the UDMA registers
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* @drive: drive to tune
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* @timing: timing info
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*
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* Program the UDMA timing for this drive according to the
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* current clock.
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*/
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static void it821x_program_udma(ide_drive_t *drive, u16 timing)
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{
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ide_hwif_t *hwif = drive->hwif;
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struct pci_dev *dev = to_pci_dev(hwif->dev);
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struct it821x_dev *itdev = ide_get_hwifdata(hwif);
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int channel = hwif->channel;
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u8 unit = drive->dn & 1, conf;
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/* Program UDMA timing bits */
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if(itdev->clock_mode == ATA_66)
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conf = timing >> 8;
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else
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conf = timing & 0xFF;
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if (itdev->timing10 == 0)
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pci_write_config_byte(dev, 0x56 + 4 * channel + unit, conf);
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else {
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pci_write_config_byte(dev, 0x56 + 4 * channel, conf);
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pci_write_config_byte(dev, 0x56 + 4 * channel + 1, conf);
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}
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}
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/**
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* it821x_clock_strategy
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* @drive: drive to set up
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*
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* Select between the 50 and 66Mhz base clocks to get the best
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* results for this interface.
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*/
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static void it821x_clock_strategy(ide_drive_t *drive)
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{
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ide_hwif_t *hwif = drive->hwif;
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struct pci_dev *dev = to_pci_dev(hwif->dev);
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struct it821x_dev *itdev = ide_get_hwifdata(hwif);
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ide_drive_t *pair = ide_get_pair_dev(drive);
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int clock, altclock, sel = 0;
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u8 unit = drive->dn & 1, v;
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if(itdev->want[0][0] > itdev->want[1][0]) {
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clock = itdev->want[0][1];
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altclock = itdev->want[1][1];
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} else {
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clock = itdev->want[1][1];
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altclock = itdev->want[0][1];
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}
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/*
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* if both clocks can be used for the mode with the higher priority
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* use the clock needed by the mode with the lower priority
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*/
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if (clock == ATA_ANY)
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clock = altclock;
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/* Nobody cares - keep the same clock */
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if(clock == ATA_ANY)
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return;
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/* No change */
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if(clock == itdev->clock_mode)
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return;
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/* Load this into the controller ? */
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if(clock == ATA_66)
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itdev->clock_mode = ATA_66;
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else {
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itdev->clock_mode = ATA_50;
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sel = 1;
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}
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pci_read_config_byte(dev, 0x50, &v);
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v &= ~(1 << (1 + hwif->channel));
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v |= sel << (1 + hwif->channel);
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pci_write_config_byte(dev, 0x50, v);
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/*
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* Reprogram the UDMA/PIO of the pair drive for the switch
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* MWDMA will be dealt with by the dma switcher
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*/
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if(pair && itdev->udma[1-unit] != UDMA_OFF) {
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it821x_program_udma(pair, itdev->udma[1-unit]);
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it821x_program(pair, itdev->pio[1-unit]);
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}
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/*
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* Reprogram the UDMA/PIO of our drive for the switch.
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* MWDMA will be dealt with by the dma switcher
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*/
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if(itdev->udma[unit] != UDMA_OFF) {
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it821x_program_udma(drive, itdev->udma[unit]);
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it821x_program(drive, itdev->pio[unit]);
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}
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}
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/**
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* it821x_set_pio_mode - set host controller for PIO mode
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* @hwif: port
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* @drive: drive
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*
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* Tune the host to the desired PIO mode taking into the consideration
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* the maximum PIO mode supported by the other device on the cable.
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*/
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static void it821x_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
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{
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struct it821x_dev *itdev = ide_get_hwifdata(hwif);
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ide_drive_t *pair = ide_get_pair_dev(drive);
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const u8 pio = drive->pio_mode - XFER_PIO_0;
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u8 unit = drive->dn & 1, set_pio = pio;
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/* Spec says 89 ref driver uses 88 */
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static u16 pio_timings[]= { 0xAA88, 0xA382, 0xA181, 0x3332, 0x3121 };
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static u8 pio_want[] = { ATA_66, ATA_66, ATA_66, ATA_66, ATA_ANY };
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/*
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* Compute the best PIO mode we can for a given device. We must
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* pick a speed that does not cause problems with the other device
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* on the cable.
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*/
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if (pair) {
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u8 pair_pio = pair->pio_mode - XFER_PIO_0;
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/* trim PIO to the slowest of the master/slave */
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if (pair_pio < set_pio)
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set_pio = pair_pio;
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}
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/* We prefer 66Mhz clock for PIO 0-3, don't care for PIO4 */
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itdev->want[unit][1] = pio_want[set_pio];
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itdev->want[unit][0] = 1; /* PIO is lowest priority */
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itdev->pio[unit] = pio_timings[set_pio];
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it821x_clock_strategy(drive);
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it821x_program(drive, itdev->pio[unit]);
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}
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/**
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* it821x_tune_mwdma - tune a channel for MWDMA
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* @drive: drive to set up
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* @mode_wanted: the target operating mode
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*
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* Load the timing settings for this device mode into the
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* controller when doing MWDMA in pass through mode. The caller
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* must manage the whole lack of per device MWDMA/PIO timings and
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* the shared MWDMA/PIO timing register.
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*/
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static void it821x_tune_mwdma(ide_drive_t *drive, u8 mode_wanted)
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{
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ide_hwif_t *hwif = drive->hwif;
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struct pci_dev *dev = to_pci_dev(hwif->dev);
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struct it821x_dev *itdev = (void *)ide_get_hwifdata(hwif);
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u8 unit = drive->dn & 1, channel = hwif->channel, conf;
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static u16 dma[] = { 0x8866, 0x3222, 0x3121 };
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static u8 mwdma_want[] = { ATA_ANY, ATA_66, ATA_ANY };
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itdev->want[unit][1] = mwdma_want[mode_wanted];
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itdev->want[unit][0] = 2; /* MWDMA is low priority */
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itdev->mwdma[unit] = dma[mode_wanted];
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itdev->udma[unit] = UDMA_OFF;
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/* UDMA bits off - Revision 0x10 do them in pairs */
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pci_read_config_byte(dev, 0x50, &conf);
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if (itdev->timing10)
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conf |= channel ? 0x60: 0x18;
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else
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conf |= 1 << (3 + 2 * channel + unit);
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pci_write_config_byte(dev, 0x50, conf);
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it821x_clock_strategy(drive);
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/* FIXME: do we need to program this ? */
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/* it821x_program(drive, itdev->mwdma[unit]); */
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}
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/**
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* it821x_tune_udma - tune a channel for UDMA
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* @drive: drive to set up
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* @mode_wanted: the target operating mode
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*
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* Load the timing settings for this device mode into the
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* controller when doing UDMA modes in pass through.
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*/
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static void it821x_tune_udma(ide_drive_t *drive, u8 mode_wanted)
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{
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ide_hwif_t *hwif = drive->hwif;
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struct pci_dev *dev = to_pci_dev(hwif->dev);
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struct it821x_dev *itdev = ide_get_hwifdata(hwif);
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u8 unit = drive->dn & 1, channel = hwif->channel, conf;
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static u16 udma[] = { 0x4433, 0x4231, 0x3121, 0x2121, 0x1111, 0x2211, 0x1111 };
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static u8 udma_want[] = { ATA_ANY, ATA_50, ATA_ANY, ATA_66, ATA_66, ATA_50, ATA_66 };
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itdev->want[unit][1] = udma_want[mode_wanted];
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itdev->want[unit][0] = 3; /* UDMA is high priority */
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itdev->mwdma[unit] = MWDMA_OFF;
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itdev->udma[unit] = udma[mode_wanted];
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if(mode_wanted >= 5)
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itdev->udma[unit] |= 0x8080; /* UDMA 5/6 select on */
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/* UDMA on. Again revision 0x10 must do the pair */
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pci_read_config_byte(dev, 0x50, &conf);
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if (itdev->timing10)
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conf &= channel ? 0x9F: 0xE7;
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else
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conf &= ~ (1 << (3 + 2 * channel + unit));
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pci_write_config_byte(dev, 0x50, conf);
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it821x_clock_strategy(drive);
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it821x_program_udma(drive, itdev->udma[unit]);
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}
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/**
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* it821x_dma_read - DMA hook
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* @drive: drive for DMA
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*
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* The IT821x has a single timing register for MWDMA and for PIO
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* operations. As we flip back and forth we have to reload the
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* clock. In addition the rev 0x10 device only works if the same
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* timing value is loaded into the master and slave UDMA clock
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* so we must also reload that.
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*
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* FIXME: we could figure out in advance if we need to do reloads
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*/
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static void it821x_dma_start(ide_drive_t *drive)
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{
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ide_hwif_t *hwif = drive->hwif;
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struct it821x_dev *itdev = ide_get_hwifdata(hwif);
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u8 unit = drive->dn & 1;
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if(itdev->mwdma[unit] != MWDMA_OFF)
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it821x_program(drive, itdev->mwdma[unit]);
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else if(itdev->udma[unit] != UDMA_OFF && itdev->timing10)
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it821x_program_udma(drive, itdev->udma[unit]);
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ide_dma_start(drive);
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}
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/**
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* it821x_dma_write - DMA hook
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* @drive: drive for DMA stop
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*
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* The IT821x has a single timing register for MWDMA and for PIO
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* operations. As we flip back and forth we have to reload the
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* clock.
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*/
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static int it821x_dma_end(ide_drive_t *drive)
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{
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ide_hwif_t *hwif = drive->hwif;
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struct it821x_dev *itdev = ide_get_hwifdata(hwif);
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int ret = ide_dma_end(drive);
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u8 unit = drive->dn & 1;
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if(itdev->mwdma[unit] != MWDMA_OFF)
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it821x_program(drive, itdev->pio[unit]);
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return ret;
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}
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/**
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* it821x_set_dma_mode - set host controller for DMA mode
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* @hwif: port
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* @drive: drive
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*
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* Tune the ITE chipset for the desired DMA mode.
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*/
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static void it821x_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive)
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{
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const u8 speed = drive->dma_mode;
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/*
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* MWDMA tuning is really hard because our MWDMA and PIO
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* timings are kept in the same place. We can switch in the
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* host dma on/off callbacks.
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*/
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if (speed >= XFER_UDMA_0 && speed <= XFER_UDMA_6)
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it821x_tune_udma(drive, speed - XFER_UDMA_0);
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else if (speed >= XFER_MW_DMA_0 && speed <= XFER_MW_DMA_2)
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it821x_tune_mwdma(drive, speed - XFER_MW_DMA_0);
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}
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/**
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* it821x_cable_detect - cable detection
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* @hwif: interface to check
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*
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* Check for the presence of an ATA66 capable cable on the
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* interface. Problematic as it seems some cards don't have
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* the needed logic onboard.
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*/
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static u8 it821x_cable_detect(ide_hwif_t *hwif)
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{
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/* The reference driver also only does disk side */
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return ATA_CBL_PATA80;
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}
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/**
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* it821x_quirkproc - post init callback
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* @drive: drive
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*
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* This callback is run after the drive has been probed but
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* before anything gets attached. It allows drivers to do any
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* final tuning that is needed, or fixups to work around bugs.
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*/
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static void it821x_quirkproc(ide_drive_t *drive)
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{
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struct it821x_dev *itdev = ide_get_hwifdata(drive->hwif);
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u16 *id = drive->id;
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if (!itdev->smart) {
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/*
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* If we are in pass through mode then not much
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* needs to be done, but we do bother to clear the
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* IRQ mask as we may well be in PIO (eg rev 0x10)
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* for now and we know unmasking is safe on this chipset.
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*/
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drive->dev_flags |= IDE_DFLAG_UNMASK;
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} else {
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/*
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* Perform fixups on smart mode. We need to "lose" some
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* capabilities the firmware lacks but does not filter, and
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* also patch up some capability bits that it forgets to set
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* in RAID mode.
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*/
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|
|
|
/* Check for RAID v native */
|
|
if (strstr((char *)&id[ATA_ID_PROD],
|
|
"Integrated Technology Express")) {
|
|
/* In raid mode the ident block is slightly buggy
|
|
We need to set the bits so that the IDE layer knows
|
|
LBA28. LBA48 and DMA ar valid */
|
|
id[ATA_ID_CAPABILITY] |= (3 << 8); /* LBA28, DMA */
|
|
id[ATA_ID_COMMAND_SET_2] |= 0x0400; /* LBA48 valid */
|
|
id[ATA_ID_CFS_ENABLE_2] |= 0x0400; /* LBA48 on */
|
|
/* Reporting logic */
|
|
printk(KERN_INFO "%s: IT8212 %sRAID %d volume",
|
|
drive->name, id[147] ? "Bootable " : "",
|
|
id[ATA_ID_CSFO]);
|
|
if (id[ATA_ID_CSFO] != 1)
|
|
printk(KERN_CONT "(%dK stripe)", id[146]);
|
|
printk(KERN_CONT ".\n");
|
|
} else {
|
|
/* Non RAID volume. Fixups to stop the core code
|
|
doing unsupported things */
|
|
id[ATA_ID_FIELD_VALID] &= 3;
|
|
id[ATA_ID_QUEUE_DEPTH] = 0;
|
|
id[ATA_ID_COMMAND_SET_1] = 0;
|
|
id[ATA_ID_COMMAND_SET_2] &= 0xC400;
|
|
id[ATA_ID_CFSSE] &= 0xC000;
|
|
id[ATA_ID_CFS_ENABLE_1] = 0;
|
|
id[ATA_ID_CFS_ENABLE_2] &= 0xC400;
|
|
id[ATA_ID_CSF_DEFAULT] &= 0xC000;
|
|
id[127] = 0;
|
|
id[ATA_ID_DLF] = 0;
|
|
id[ATA_ID_CSFO] = 0;
|
|
id[ATA_ID_CFA_POWER] = 0;
|
|
printk(KERN_INFO "%s: Performing identify fixups.\n",
|
|
drive->name);
|
|
}
|
|
|
|
/*
|
|
* Set MWDMA0 mode as enabled/support - just to tell
|
|
* IDE core that DMA is supported (it821x hardware
|
|
* takes care of DMA mode programming).
|
|
*/
|
|
if (ata_id_has_dma(id)) {
|
|
id[ATA_ID_MWDMA_MODES] |= 0x0101;
|
|
drive->current_speed = XFER_MW_DMA_0;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
static const struct ide_dma_ops it821x_pass_through_dma_ops = {
|
|
.dma_host_set = ide_dma_host_set,
|
|
.dma_setup = ide_dma_setup,
|
|
.dma_start = it821x_dma_start,
|
|
.dma_end = it821x_dma_end,
|
|
.dma_test_irq = ide_dma_test_irq,
|
|
.dma_lost_irq = ide_dma_lost_irq,
|
|
.dma_timer_expiry = ide_dma_sff_timer_expiry,
|
|
.dma_sff_read_status = ide_dma_sff_read_status,
|
|
};
|
|
|
|
/**
|
|
* init_hwif_it821x - set up hwif structs
|
|
* @hwif: interface to set up
|
|
*
|
|
* We do the basic set up of the interface structure. The IT8212
|
|
* requires several custom handlers so we override the default
|
|
* ide DMA handlers appropriately
|
|
*/
|
|
|
|
static void init_hwif_it821x(ide_hwif_t *hwif)
|
|
{
|
|
struct pci_dev *dev = to_pci_dev(hwif->dev);
|
|
struct ide_host *host = pci_get_drvdata(dev);
|
|
struct it821x_dev *itdevs = host->host_priv;
|
|
struct it821x_dev *idev = itdevs + hwif->channel;
|
|
u8 conf;
|
|
|
|
ide_set_hwifdata(hwif, idev);
|
|
|
|
pci_read_config_byte(dev, 0x50, &conf);
|
|
if (conf & 1) {
|
|
idev->smart = 1;
|
|
hwif->host_flags |= IDE_HFLAG_NO_ATAPI_DMA;
|
|
/* Long I/O's although allowed in LBA48 space cause the
|
|
onboard firmware to enter the twighlight zone */
|
|
hwif->rqsize = 256;
|
|
}
|
|
|
|
/* Pull the current clocks from 0x50 also */
|
|
if (conf & (1 << (1 + hwif->channel)))
|
|
idev->clock_mode = ATA_50;
|
|
else
|
|
idev->clock_mode = ATA_66;
|
|
|
|
idev->want[0][1] = ATA_ANY;
|
|
idev->want[1][1] = ATA_ANY;
|
|
|
|
/*
|
|
* Not in the docs but according to the reference driver
|
|
* this is necessary.
|
|
*/
|
|
|
|
if (dev->revision == 0x10) {
|
|
idev->timing10 = 1;
|
|
hwif->host_flags |= IDE_HFLAG_NO_ATAPI_DMA;
|
|
if (idev->smart == 0)
|
|
printk(KERN_WARNING DRV_NAME " %s: revision 0x10, "
|
|
"workarounds activated\n", pci_name(dev));
|
|
}
|
|
|
|
if (idev->smart == 0) {
|
|
/* MWDMA/PIO clock switching for pass through mode */
|
|
hwif->dma_ops = &it821x_pass_through_dma_ops;
|
|
} else
|
|
hwif->host_flags |= IDE_HFLAG_NO_SET_MODE;
|
|
|
|
if (hwif->dma_base == 0)
|
|
return;
|
|
|
|
hwif->ultra_mask = ATA_UDMA6;
|
|
hwif->mwdma_mask = ATA_MWDMA2;
|
|
|
|
/* Vortex86SX quirk: prevent Ultra-DMA mode to fix BadCRC issue */
|
|
if (idev->quirks & QUIRK_VORTEX86) {
|
|
if (dev->revision == 0x11)
|
|
hwif->ultra_mask = 0;
|
|
}
|
|
}
|
|
|
|
static void it8212_disable_raid(struct pci_dev *dev)
|
|
{
|
|
/* Reset local CPU, and set BIOS not ready */
|
|
pci_write_config_byte(dev, 0x5E, 0x01);
|
|
|
|
/* Set to bypass mode, and reset PCI bus */
|
|
pci_write_config_byte(dev, 0x50, 0x00);
|
|
pci_write_config_word(dev, PCI_COMMAND,
|
|
PCI_COMMAND_PARITY | PCI_COMMAND_IO |
|
|
PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
|
|
pci_write_config_word(dev, 0x40, 0xA0F3);
|
|
|
|
pci_write_config_dword(dev,0x4C, 0x02040204);
|
|
pci_write_config_byte(dev, 0x42, 0x36);
|
|
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20);
|
|
}
|
|
|
|
static int init_chipset_it821x(struct pci_dev *dev)
|
|
{
|
|
u8 conf;
|
|
static char *mode[2] = { "pass through", "smart" };
|
|
|
|
/* Force the card into bypass mode if so requested */
|
|
if (it8212_noraid) {
|
|
printk(KERN_INFO DRV_NAME " %s: forcing bypass mode\n",
|
|
pci_name(dev));
|
|
it8212_disable_raid(dev);
|
|
}
|
|
pci_read_config_byte(dev, 0x50, &conf);
|
|
printk(KERN_INFO DRV_NAME " %s: controller in %s mode\n",
|
|
pci_name(dev), mode[conf & 1]);
|
|
return 0;
|
|
}
|
|
|
|
static const struct ide_port_ops it821x_port_ops = {
|
|
/* it821x_set_{pio,dma}_mode() are only used in pass-through mode */
|
|
.set_pio_mode = it821x_set_pio_mode,
|
|
.set_dma_mode = it821x_set_dma_mode,
|
|
.quirkproc = it821x_quirkproc,
|
|
.cable_detect = it821x_cable_detect,
|
|
};
|
|
|
|
static const struct ide_port_info it821x_chipset = {
|
|
.name = DRV_NAME,
|
|
.init_chipset = init_chipset_it821x,
|
|
.init_hwif = init_hwif_it821x,
|
|
.port_ops = &it821x_port_ops,
|
|
.pio_mask = ATA_PIO4,
|
|
};
|
|
|
|
/**
|
|
* it821x_init_one - pci layer discovery entry
|
|
* @dev: PCI device
|
|
* @id: ident table entry
|
|
*
|
|
* Called by the PCI code when it finds an ITE821x controller.
|
|
* We then use the IDE PCI generic helper to do most of the work.
|
|
*/
|
|
|
|
static int it821x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
|
|
{
|
|
struct it821x_dev *itdevs;
|
|
int rc;
|
|
|
|
itdevs = kzalloc(2 * sizeof(*itdevs), GFP_KERNEL);
|
|
if (itdevs == NULL) {
|
|
printk(KERN_ERR DRV_NAME " %s: out of memory\n", pci_name(dev));
|
|
return -ENOMEM;
|
|
}
|
|
|
|
itdevs->quirks = id->driver_data;
|
|
|
|
rc = ide_pci_init_one(dev, &it821x_chipset, itdevs);
|
|
if (rc)
|
|
kfree(itdevs);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void it821x_remove(struct pci_dev *dev)
|
|
{
|
|
struct ide_host *host = pci_get_drvdata(dev);
|
|
struct it821x_dev *itdevs = host->host_priv;
|
|
|
|
ide_pci_remove(dev);
|
|
kfree(itdevs);
|
|
}
|
|
|
|
static const struct pci_device_id it821x_pci_tbl[] = {
|
|
{ PCI_VDEVICE(ITE, PCI_DEVICE_ID_ITE_8211), 0 },
|
|
{ PCI_VDEVICE(ITE, PCI_DEVICE_ID_ITE_8212), 0 },
|
|
{ PCI_VDEVICE(RDC, PCI_DEVICE_ID_RDC_D1010), QUIRK_VORTEX86 },
|
|
{ 0, },
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(pci, it821x_pci_tbl);
|
|
|
|
static struct pci_driver it821x_pci_driver = {
|
|
.name = "ITE821x IDE",
|
|
.id_table = it821x_pci_tbl,
|
|
.probe = it821x_init_one,
|
|
.remove = it821x_remove,
|
|
.suspend = ide_pci_suspend,
|
|
.resume = ide_pci_resume,
|
|
};
|
|
|
|
static int __init it821x_ide_init(void)
|
|
{
|
|
return ide_pci_register_driver(&it821x_pci_driver);
|
|
}
|
|
|
|
static void __exit it821x_ide_exit(void)
|
|
{
|
|
pci_unregister_driver(&it821x_pci_driver);
|
|
}
|
|
|
|
module_init(it821x_ide_init);
|
|
module_exit(it821x_ide_exit);
|
|
|
|
module_param_named(noraid, it8212_noraid, int, S_IRUGO);
|
|
MODULE_PARM_DESC(noraid, "Force card into bypass mode");
|
|
|
|
MODULE_AUTHOR("Alan Cox");
|
|
MODULE_DESCRIPTION("PCI driver module for the ITE 821x");
|
|
MODULE_LICENSE("GPL");
|