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Date: Fri, 29 Jan 2010 17:09:47 +0100
From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To: linux-ide@...r.kernel.org
Cc: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
linux-kernel@...r.kernel.org
Subject: [PATCH 62/68] pata_sl82c105: move code to be re-used by ide2libata to pata_sl82c105.h
From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Subject: [PATCH] pata_sl82c105: move code to be re-used by ide2libata to pata_sl82c105.h
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
---
drivers/ata/pata_sl82c105.c | 106 --------------------------------------------
drivers/ata/pata_sl82c105.h | 106 ++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 107 insertions(+), 105 deletions(-)
Index: b/drivers/ata/pata_sl82c105.c
===================================================================
--- a/drivers/ata/pata_sl82c105.c
+++ b/drivers/ata/pata_sl82c105.c
@@ -28,18 +28,7 @@
#define DRV_NAME "pata_sl82c105"
#define DRV_VERSION "0.3.3"
-enum {
- /*
- * SL82C105 PCI config register 0x40 bits.
- */
- CTRL_IDE_IRQB = (1 << 30),
- CTRL_IDE_IRQA = (1 << 28),
- CTRL_LEGIRQ = (1 << 11),
- CTRL_P1F16 = (1 << 5),
- CTRL_P1EN = (1 << 4),
- CTRL_P0F16 = (1 << 1),
- CTRL_P0EN = (1 << 0)
-};
+#include "pata_sl82c105.h"
/**
* sl82c105_pre_reset - probe begin
@@ -104,50 +93,6 @@ static void sl82c105_set_piomode(struct
}
/**
- * sl82c105_configure_dmamode - set DMA mode in chip
- * @ap: ATA interface
- * @adev: ATA device
- *
- * Load DMA cycle times into the chip ready for a DMA transfer
- * to occur.
- */
-
-static void sl82c105_configure_dmamode(struct ata_port *ap, struct ata_device *adev)
-{
- struct pci_dev *pdev = to_pci_dev(ap->host->dev);
- static u16 dma_timing[3] = {
- 0x707, 0x201, 0x200
- };
- u16 dummy;
- int timing = 0x44 + (8 * ap->port_no) + (4 * adev->devno);
- int dma = adev->dma_mode - XFER_MW_DMA_0;
-
- pci_write_config_word(pdev, timing, dma_timing[dma]);
- /* Can we lose this oddity of the old driver */
- pci_read_config_word(pdev, timing, &dummy);
-}
-
-/**
- * sl82c105_reset_engine - Reset the DMA engine
- * @ap: ATA interface
- *
- * The sl82c105 has some serious problems with the DMA engine
- * when transfers don't run as expected or ATAPI is used. The
- * recommended fix is to reset the engine each use using a chip
- * test register.
- */
-
-static void sl82c105_reset_engine(struct ata_port *ap)
-{
- struct pci_dev *pdev = to_pci_dev(ap->host->dev);
- u16 val;
-
- pci_read_config_word(pdev, 0x7E, &val);
- pci_write_config_word(pdev, 0x7E, val | 4);
- pci_write_config_word(pdev, 0x7E, val & ~4);
-}
-
-/**
* sl82c105_bmdma_start - DMA engine begin
* @qc: ATA command
*
@@ -242,55 +187,6 @@ static struct ata_port_operations sl82c1
.prereset = sl82c105_pre_reset,
};
-/**
- * sl82c105_bridge_revision - find bridge version
- * @pdev: PCI device for the ATA function
- *
- * Locates the PCI bridge associated with the ATA function and
- * providing it is a Winbond 553 reports the revision. If it cannot
- * find a revision or the right device it returns -1
- */
-
-static int sl82c105_bridge_revision(struct pci_dev *pdev)
-{
- struct pci_dev *bridge;
-
- /*
- * The bridge should be part of the same device, but function 0.
- */
- bridge = pci_get_slot(pdev->bus,
- PCI_DEVFN(PCI_SLOT(pdev->devfn), 0));
- if (!bridge)
- return -1;
-
- /*
- * Make sure it is a Winbond 553 and is an ISA bridge.
- */
- if (bridge->vendor != PCI_VENDOR_ID_WINBOND ||
- bridge->device != PCI_DEVICE_ID_WINBOND_83C553 ||
- bridge->class >> 8 != PCI_CLASS_BRIDGE_ISA) {
- pci_dev_put(bridge);
- return -1;
- }
- /*
- * We need to find function 0's revision, not function 1
- */
- pci_dev_put(bridge);
- return bridge->revision;
-}
-
-static int sl82c105_fixup(struct device *dev)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
- u32 val;
-
- pci_read_config_dword(pdev, 0x40, &val);
- val |= CTRL_P0EN | CTRL_P0F16 | CTRL_P1F16;
- pci_write_config_dword(pdev, 0x40, val);
-
- return 0;
-}
-
static int sl82c105_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
static const struct ata_port_info info_dma = {
Index: b/drivers/ata/pata_sl82c105.h
===================================================================
--- /dev/null
+++ b/drivers/ata/pata_sl82c105.h
@@ -0,0 +1,106 @@
+
+enum {
+ /*
+ * SL82C105 PCI config register 0x40 bits.
+ */
+ CTRL_IDE_IRQB = (1 << 30),
+ CTRL_IDE_IRQA = (1 << 28),
+ CTRL_LEGIRQ = (1 << 11),
+ CTRL_P1F16 = (1 << 5),
+ CTRL_P1EN = (1 << 4),
+ CTRL_P0F16 = (1 << 1),
+ CTRL_P0EN = (1 << 0)
+};
+
+/**
+ * sl82c105_configure_dmamode - set DMA mode in chip
+ * @ap: ATA interface
+ * @adev: ATA device
+ *
+ * Load DMA cycle times into the chip ready for a DMA transfer
+ * to occur.
+ */
+
+static void sl82c105_configure_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ static u16 dma_timing[3] = {
+ 0x707, 0x201, 0x200
+ };
+ u16 dummy;
+ int timing = 0x44 + (8 * ap->port_no) + (4 * adev->devno);
+ int dma = adev->dma_mode - XFER_MW_DMA_0;
+
+ pci_write_config_word(pdev, timing, dma_timing[dma]);
+ /* Can we lose this oddity of the old driver */
+ pci_read_config_word(pdev, timing, &dummy);
+}
+
+/**
+ * sl82c105_reset_engine - Reset the DMA engine
+ * @ap: ATA interface
+ *
+ * The sl82c105 has some serious problems with the DMA engine
+ * when transfers don't run as expected or ATAPI is used. The
+ * recommended fix is to reset the engine each use using a chip
+ * test register.
+ */
+
+static void sl82c105_reset_engine(struct ata_port *ap)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u16 val;
+
+ pci_read_config_word(pdev, 0x7E, &val);
+ pci_write_config_word(pdev, 0x7E, val | 4);
+ pci_write_config_word(pdev, 0x7E, val & ~4);
+}
+
+/**
+ * sl82c105_bridge_revision - find bridge version
+ * @pdev: PCI device for the ATA function
+ *
+ * Locates the PCI bridge associated with the ATA function and
+ * providing it is a Winbond 553 reports the revision. If it cannot
+ * find a revision or the right device it returns -1
+ */
+
+static int sl82c105_bridge_revision(struct pci_dev *pdev)
+{
+ struct pci_dev *bridge;
+
+ /*
+ * The bridge should be part of the same device, but function 0.
+ */
+ bridge = pci_get_slot(pdev->bus,
+ PCI_DEVFN(PCI_SLOT(pdev->devfn), 0));
+ if (!bridge)
+ return -1;
+
+ /*
+ * Make sure it is a Winbond 553 and is an ISA bridge.
+ */
+ if (bridge->vendor != PCI_VENDOR_ID_WINBOND ||
+ bridge->device != PCI_DEVICE_ID_WINBOND_83C553 ||
+ bridge->class >> 8 != PCI_CLASS_BRIDGE_ISA) {
+ pci_dev_put(bridge);
+ return -1;
+ }
+ /*
+ * We need to find function 0's revision, not function 1
+ */
+ pci_dev_put(bridge);
+ return bridge->revision;
+}
+
+static int sl82c105_fixup(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ u32 val;
+
+ pci_read_config_dword(pdev, 0x40, &val);
+ val |= CTRL_P0EN | CTRL_P0F16 | CTRL_P1F16;
+ pci_write_config_dword(pdev, 0x40, val);
+
+ return 0;
+}
--
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