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author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-01-25 17:08:28 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-01-25 17:08:28 -0800 |
commit | 2ba14a017a4ba8d2266316f481d4ad7400073d18 (patch) | |
tree | 6e86dcbbb7898eb747f1198e33961eb68bfcdb4d /drivers/ata/pata_qdi.c | |
parent | 99f1c97dbdb30e958edfd1ced0ae43df62504e07 (diff) | |
parent | a984f58dd97f22f5113700322fed311a0ee29947 (diff) | |
download | kernel_samsung_smdk4412-2ba14a017a4ba8d2266316f481d4ad7400073d18.tar.gz kernel_samsung_smdk4412-2ba14a017a4ba8d2266316f481d4ad7400073d18.tar.bz2 kernel_samsung_smdk4412-2ba14a017a4ba8d2266316f481d4ad7400073d18.zip |
Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (67 commits)
fix drivers/ata/sata_fsl.c double-decl
[libata] Prefer SCSI_SENSE_BUFFERSIZE to sizeof()
pata_legacy: Merge winbond support
ata_generic: Cenatek support
pata_winbond: error return
pata_serverworks: Fix cable types and cosmetics
pata_mpc52xx: remove un-needed assignment
libata: fix off-by-one in error categorization
ahci: factor out AHCI enabling and enable AHCI before reading CAP
ata_piix: implement SIDPR SCR access
ata_piix: convert to prepare - activate initialization
libata: factor out ata_pci_activate_sff_host() from ata_pci_one()
[libata] Prefer SCSI_SENSE_BUFFERSIZE to sizeof()
pata_legacy: resychronize with upstream changes and resubmit
[libata] pata_legacy: typo fix
[libata] pata_winbond: update for new ->data_xfer hook
pata_pcmcia: convert to new data_xfer prototype
libata annotations and fixes
libata: use dev_driver_string() instead of "libata" in libata-sff.c
ata_piix: kill unused constants and flags
...
Diffstat (limited to 'drivers/ata/pata_qdi.c')
-rw-r--r-- | drivers/ata/pata_qdi.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/drivers/ata/pata_qdi.c b/drivers/ata/pata_qdi.c index a4c0e502cb4..9f308ed76cc 100644 --- a/drivers/ata/pata_qdi.c +++ b/drivers/ata/pata_qdi.c @@ -124,29 +124,33 @@ static unsigned int qdi_qc_issue_prot(struct ata_queued_cmd *qc) return ata_qc_issue_prot(qc); } -static void qdi_data_xfer(struct ata_device *adev, unsigned char *buf, unsigned int buflen, int write_data) +static unsigned int qdi_data_xfer(struct ata_device *dev, unsigned char *buf, + unsigned int buflen, int rw) { - struct ata_port *ap = adev->link->ap; - int slop = buflen & 3; + if (ata_id_has_dword_io(dev->id)) { + struct ata_port *ap = dev->link->ap; + int slop = buflen & 3; - if (ata_id_has_dword_io(adev->id)) { - if (write_data) - iowrite32_rep(ap->ioaddr.data_addr, buf, buflen >> 2); - else + if (rw == READ) ioread32_rep(ap->ioaddr.data_addr, buf, buflen >> 2); + else + iowrite32_rep(ap->ioaddr.data_addr, buf, buflen >> 2); if (unlikely(slop)) { - __le32 pad = 0; - if (write_data) { - memcpy(&pad, buf + buflen - slop, slop); - iowrite32(le32_to_cpu(pad), ap->ioaddr.data_addr); - } else { + u32 pad; + if (rw == READ) { pad = cpu_to_le32(ioread32(ap->ioaddr.data_addr)); memcpy(buf + buflen - slop, &pad, slop); + } else { + memcpy(&pad, buf + buflen - slop, slop); + iowrite32(le32_to_cpu(pad), ap->ioaddr.data_addr); } + buflen += 4 - slop; } } else - ata_data_xfer(adev, buf, buflen, write_data); + buflen = ata_data_xfer(dev, buf, buflen, rw); + + return buflen; } static struct scsi_host_template qdi_sht = { |