From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bartlomiej Zolnierkiewicz Subject: [PATCH 7/9] ns87415: add ->tf_read method Date: Sat, 12 Apr 2008 14:34:44 +0200 Message-ID: <20080412123444.18751.4483.sendpatchset@localhost.localdomain> References: <20080412123401.18751.17246.sendpatchset@localhost.localdomain> Return-path: Received: from fg-out-1718.google.com ([72.14.220.159]:21782 "EHLO fg-out-1718.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761650AbYDLMSg (ORCPT ); Sat, 12 Apr 2008 08:18:36 -0400 Received: by fg-out-1718.google.com with SMTP id l27so742002fgb.17 for ; Sat, 12 Apr 2008 05:18:35 -0700 (PDT) In-Reply-To: <20080412123401.18751.17246.sendpatchset@localhost.localdomain> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: linux-ide@vger.kernel.org Cc: Bartlomiej Zolnierkiewicz , linux-kernel@vger.kernel.org Add ->tf_read method so out{b,w}(), in{b,w}() and superio_ide_inb() can be used directly. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/pci/ns87415.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) Index: b/drivers/ide/pci/ns87415.c =================================================================== --- a/drivers/ide/pci/ns87415.c +++ b/drivers/ide/pci/ns87415.c @@ -63,6 +63,48 @@ static u8 superio_ide_inb (unsigned long return inb(port); } +static void superio_tf_read(ide_drive_t *drive, ide_task_t *task) +{ + struct ide_io_ports *io_ports = &drive->hwif->io_ports; + struct ide_taskfile *tf = &task->tf; + + if (task->tf_flags & IDE_TFLAG_IN_DATA) { + u16 data = inw(io_ports->data_addr); + + tf->data = data & 0xff; + tf->hob_data = (data >> 8) & 0xff; + } + + /* be sure we're looking at the low order bits */ + outb(drive->ctl & ~0x80, io_ports->ctl_addr); + + if (task->tf_flags & IDE_TFLAG_IN_NSECT) + tf->nsect = inb(io_ports->nsect_addr); + if (task->tf_flags & IDE_TFLAG_IN_LBAL) + tf->lbal = inb(io_ports->lbal_addr); + if (task->tf_flags & IDE_TFLAG_IN_LBAM) + tf->lbam = inb(io_ports->lbam_addr); + if (task->tf_flags & IDE_TFLAG_IN_LBAH) + tf->lbah = inb(io_ports->lbah_addr); + if (task->tf_flags & IDE_TFLAG_IN_DEVICE) + tf->device = superio_ide_inb(io_ports->device_addr); + + if (task->tf_flags & IDE_TFLAG_LBA48) { + outb(drive->ctl | 0x80, io_ports->ctl_addr); + + if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE) + tf->hob_feature = inb(io_ports->feature_addr); + if (task->tf_flags & IDE_TFLAG_IN_HOB_NSECT) + tf->hob_nsect = inb(io_ports->nsect_addr); + if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAL) + tf->hob_lbal = inb(io_ports->lbal_addr); + if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAM) + tf->hob_lbam = inb(io_ports->lbam_addr); + if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAH) + tf->hob_lbah = inb(io_ports->lbah_addr); + } +} + static void __devinit superio_ide_init_iops (struct hwif_s *hwif) { struct pci_dev *pdev = to_pci_dev(hwif->dev); @@ -80,6 +122,8 @@ static void __devinit superio_ide_init_i tmp = superio_ide_inb(superio_ide_dma_status[port]); outb(tmp | 0x66, superio_ide_dma_status[port]); + hwif->tf_read = superio_tf_read; + /* We need to override inb to workaround a SuperIO errata */ hwif->INB = superio_ide_inb; }