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Message-Id: <20100129160653.21495.71701.sendpatchset@localhost>
Date: Fri, 29 Jan 2010 17:06:53 +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 35/68] pata_artop: move code to be re-used by ide2libata to pata_artop.h
From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Subject: [PATCH] pata_artop: move code to be re-used by ide2libata to pata_artop.h
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
---
drivers/ata/pata_artop.c | 232 -----------------------------------------------
drivers/ata/pata_artop.h | 230 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 231 insertions(+), 231 deletions(-)
Index: b/drivers/ata/pata_artop.c
===================================================================
--- a/drivers/ata/pata_artop.c
+++ b/drivers/ata/pata_artop.c
@@ -56,205 +56,7 @@ static int atp8xx_prereset(struct ata_li
return ata_sff_prereset(link, deadline);
}
-/**
- * atp86x_cable_detect - identify cable type
- * @ap: Port
- *
- * Identify the cable type for the ARTOP interface in question
- */
-
-static int atp86x_cable_detect(struct ata_port *ap)
-{
- struct pci_dev *pdev = to_pci_dev(ap->host->dev);
- u8 tmp;
- pci_read_config_byte(pdev, 0x49, &tmp);
- if (tmp & (1 << ap->port_no))
- return ATA_CBL_PATA40;
- return ATA_CBL_PATA80;
-}
-
-/**
- * atp850_load_piomode - Load a set of PATA PIO timings
- * @ap: Port whose timings we are configuring
- * @adev: Device
- * @pio: PIO mode
- *
- * Set PIO mode for device, in host controller PCI config space. This
- * is used both to set PIO timings in PIO mode and also to set the
- * matching PIO clocking for UDMA, as well as the MWDMA timings.
- *
- * LOCKING:
- * None (inherited from caller).
- */
-
-static void atp850_load_piomode(struct ata_port *ap, struct ata_device *adev,
- unsigned int pio)
-{
- struct pci_dev *pdev = to_pci_dev(ap->host->dev);
- int dn = adev->devno + 2 * ap->port_no;
- const u16 timing[5] =
- { 0x0000, 0x000A, 0x0008, 0x0303, 0x0301 };
-
- /* Load the PIO timing active/recovery bits */
- pci_write_config_word(pdev, 0x40 + 2 * dn, timing[pio]);
-}
-
-/**
- * atp850_set_piomode - Initialize host controller PATA PIO timings
- * @ap: Port whose timings we are configuring
- * @adev: Device we are configuring
- *
- * Set PIO mode for device, in host controller PCI config space. For
- * ARTOP we must also clear the UDMA bits if we are not doing UDMA. In
- * the event UDMA is used the later call to set_dmamode will set the
- * bits as required.
- *
- * LOCKING:
- * None (inherited from caller).
- */
-
-static void atp850_set_piomode(struct ata_port *ap, struct ata_device *adev)
-{
- struct pci_dev *pdev = to_pci_dev(ap->host->dev);
- int dn = adev->devno + 2 * ap->port_no;
- u8 ultra;
-
- atp850_load_piomode(ap, adev, adev->pio_mode - XFER_PIO_0);
-
- /* Clear the UDMA mode bits (set_dmamode will redo this if needed) */
- pci_read_config_byte(pdev, 0x54, &ultra);
- ultra &= ~(3 << (2 * dn));
- pci_write_config_byte(pdev, 0x54, ultra);
-}
-
-/**
- * atp86x_load_piomode - Initialize host controller PATA PIO timings
- * @ap: Port whose timings we are configuring
- * @adev: Device we are configuring
- * @pio: PIO mode
- *
- * Set PIO mode for device, in host controller PCI config space.
- * The ATP860 and relatives store the timing data differently.
- *
- * LOCKING:
- * None (inherited from caller).
- */
-
-static void atp86x_load_piomode(struct ata_port *ap, struct ata_device *adev,
- unsigned int pio)
-{
- struct pci_dev *pdev = to_pci_dev(ap->host->dev);
- int dn = adev->devno + 2 * ap->port_no;
- const u8 timing[5] =
- { 0x00, 0x0A, 0x08, 0x33, 0x31 };
-
- /* Load the PIO timing active/recovery bits */
- pci_write_config_byte(pdev, 0x40 + dn, timing[pio]);
-}
-
-/**
- * atp86x_set_piomode - Initialize host controller PATA PIO timings
- * @ap: Port whose timings we are configuring
- * @adev: Device we are configuring
- *
- * Set PIO mode for device, in host controller PCI config space. For
- * ARTOP we must also clear the UDMA bits if we are not doing UDMA. In
- * the event UDMA is used the later call to set_dmamode will set the
- * bits as required.
- *
- * LOCKING:
- * None (inherited from caller).
- */
-
-static void atp86x_set_piomode(struct ata_port *ap, struct ata_device *adev)
-{
- struct pci_dev *pdev = to_pci_dev(ap->host->dev);
- u8 ultra;
-
- atp86x_load_piomode(ap, adev, adev->pio_mode - XFER_PIO_0);
-
- /* Clear the UDMA mode bits (set_dmamode will redo this if needed) */
- pci_read_config_byte(pdev, 0x44 + ap->port_no, &ultra);
- ultra &= ~(7 << (4 * adev->devno)); /* One nibble per drive */
- pci_write_config_byte(pdev, 0x44 + ap->port_no, ultra);
-}
-
-/**
- * atp850_set_dmamode - Initialize host controller PATA PIO timings
- * @ap: Port whose timings we are configuring
- * @adev: Device whose timings we are configuring
- *
- * Set DMA mode for device, in host controller PCI config space.
- *
- * LOCKING:
- * None (inherited from caller).
- */
-
-static void atp850_set_dmamode(struct ata_port *ap, struct ata_device *adev)
-{
- unsigned int pio;
- struct pci_dev *pdev = to_pci_dev(ap->host->dev);
- int dn = adev->devno + 2 * ap->port_no;
- u8 ultra;
-
- if (adev->dma_mode == XFER_MW_DMA_0)
- pio = 1;
- else
- pio = 4;
-
- /* Load the PIO timing active/recovery bits */
- atp850_load_piomode(ap, adev, pio);
-
- pci_read_config_byte(pdev, 0x54, &ultra);
- ultra &= ~(3 << (2 * dn));
-
- /* Add ultra DMA bits if in UDMA mode */
- if (adev->dma_mode >= XFER_UDMA_0) {
- u8 mode = (adev->dma_mode - XFER_UDMA_0) + 1;
- if (mode == 0)
- mode = 1;
- ultra |= (mode << (2 * dn));
- }
- pci_write_config_byte(pdev, 0x54, ultra);
-}
-
-/**
- * atp86x_set_dmamode - Initialize host controller PATA PIO timings
- * @ap: Port whose timings we are configuring
- * @adev: Device we are configuring
- *
- * Set DMA mode for device, in host controller PCI config space.
- * The ATP860 and relatives store the timing data differently.
- *
- * LOCKING:
- * None (inherited from caller).
- */
-
-static void atp86x_set_dmamode(struct ata_port *ap, struct ata_device *adev)
-{
- unsigned int pio = adev->pio_mode - XFER_PIO_0;
- struct pci_dev *pdev = to_pci_dev(ap->host->dev);
- u8 ultra;
-
- if (adev->dma_mode == XFER_MW_DMA_0)
- pio = 1;
- else
- pio = 4;
-
- /* Load the PIO timing active/recovery bits */
- atp86x_load_piomode(ap, adev, pio);
-
- /* Add ultra DMA bits if in UDMA mode */
- pci_read_config_byte(pdev, 0x44 + ap->port_no, &ultra);
- ultra &= ~(7 << (4 * adev->devno)); /* One nibble per drive */
- if (adev->dma_mode >= XFER_UDMA_0) {
- u8 mode = adev->dma_mode - XFER_UDMA_0 + 1;
- if (mode == 0)
- mode = 1;
- ultra |= (mode << (4 * adev->devno));
- }
- pci_write_config_byte(pdev, 0x44 + ap->port_no, ultra);
-}
+#include "pata_artop.h"
/**
* atp850_qc_defer - implement serialization
@@ -302,38 +104,6 @@ static struct ata_port_operations atp86x
.prereset = atp8xx_prereset,
};
-static int atp8xx_fixup(struct device *dev)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
-
- if (pdev->device == 0x0005)
- /* BIOS may have left us in UDMA, clear it before probe */
- pci_write_config_byte(pdev, 0x54, 0);
- else if (pdev->device == 0x0008 || pdev->device == 0x0009) {
- u8 reg;
-
- /* Mac systems come up with some registers not set as we
- will need them */
-
- /* Clear reset & test bits */
- pci_read_config_byte(pdev, 0x49, ®);
- pci_write_config_byte(pdev, 0x49, reg & ~ 0x30);
-
- /* PCI latency must be > 0x80 for burst mode, tweak it
- * if required.
- */
- pci_read_config_byte(pdev, PCI_LATENCY_TIMER, ®);
- if (reg <= 0x80)
- pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x90);
-
- /* Enable IRQ output and burst mode */
- pci_read_config_byte(pdev, 0x4a, ®);
- pci_write_config_byte(pdev, 0x4a, (reg & ~0x01) | 0x80);
- }
-
- return 0;
-}
-
/**
* artop_init_one - Register ARTOP ATA PCI device with kernel services
* @pdev: PCI device to register
Index: b/drivers/ata/pata_artop.h
===================================================================
--- /dev/null
+++ b/drivers/ata/pata_artop.h
@@ -0,0 +1,230 @@
+
+/**
+ * atp86x_cable_detect - identify cable type
+ * @ap: Port
+ *
+ * Identify the cable type for the ARTOP interface in question
+ */
+
+static int atp86x_cable_detect(struct ata_port *ap)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u8 tmp;
+ pci_read_config_byte(pdev, 0x49, &tmp);
+ if (tmp & (1 << ap->port_no))
+ return ATA_CBL_PATA40;
+ return ATA_CBL_PATA80;
+}
+
+/**
+ * atp850_load_piomode - Load a set of PATA PIO timings
+ * @ap: Port whose timings we are configuring
+ * @adev: Device
+ * @pio: PIO mode
+ *
+ * Set PIO mode for device, in host controller PCI config space. This
+ * is used both to set PIO timings in PIO mode and also to set the
+ * matching PIO clocking for UDMA, as well as the MWDMA timings.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void atp850_load_piomode(struct ata_port *ap, struct ata_device *adev,
+ unsigned int pio)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int dn = adev->devno + 2 * ap->port_no;
+ const u16 timing[5] = { 0x0000, 0x000A, 0x0008, 0x0303, 0x0301 };
+
+ /* Load the PIO timing active/recovery bits */
+ pci_write_config_word(pdev, 0x40 + 2 * dn, timing[pio]);
+}
+
+/**
+ * atp850_set_piomode - Initialize host controller PATA PIO timings
+ * @ap: Port whose timings we are configuring
+ * @adev: Device we are configuring
+ *
+ * Set PIO mode for device, in host controller PCI config space. For
+ * ARTOP we must also clear the UDMA bits if we are not doing UDMA. In
+ * the event UDMA is used the later call to set_dmamode will set the
+ * bits as required.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void atp850_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int dn = adev->devno + 2 * ap->port_no;
+ u8 ultra;
+
+ atp850_load_piomode(ap, adev, adev->pio_mode - XFER_PIO_0);
+
+ /* Clear the UDMA mode bits (set_dmamode will redo this if needed) */
+ pci_read_config_byte(pdev, 0x54, &ultra);
+ ultra &= ~(3 << (2 * dn));
+ pci_write_config_byte(pdev, 0x54, ultra);
+}
+
+/**
+ * atp86x_load_piomode - Initialize host controller PATA PIO timings
+ * @ap: Port whose timings we are configuring
+ * @adev: Device we are configuring
+ * @pio: PIO mode
+ *
+ * Set PIO mode for device, in host controller PCI config space.
+ * The ATP860 and relatives store the timing data differently.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void atp86x_load_piomode(struct ata_port *ap, struct ata_device *adev,
+ unsigned int pio)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int dn = adev->devno + 2 * ap->port_no;
+ const u8 timing[5] = { 0x00, 0x0A, 0x08, 0x33, 0x31 };
+
+ /* Load the PIO timing active/recovery bits */
+ pci_write_config_byte(pdev, 0x40 + dn, timing[pio]);
+}
+
+/**
+ * atp86x_set_piomode - Initialize host controller PATA PIO timings
+ * @ap: Port whose timings we are configuring
+ * @adev: Device we are configuring
+ *
+ * Set PIO mode for device, in host controller PCI config space. For
+ * ARTOP we must also clear the UDMA bits if we are not doing UDMA. In
+ * the event UDMA is used the later call to set_dmamode will set the
+ * bits as required.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void atp86x_set_piomode(struct ata_port *ap, struct ata_device *adev)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u8 ultra;
+
+ atp86x_load_piomode(ap, adev, adev->pio_mode - XFER_PIO_0);
+
+ /* Clear the UDMA mode bits (set_dmamode will redo this if needed) */
+ pci_read_config_byte(pdev, 0x44 + ap->port_no, &ultra);
+ ultra &= ~(7 << (4 * adev->devno)); /* One nibble per drive */
+ pci_write_config_byte(pdev, 0x44 + ap->port_no, ultra);
+}
+
+/**
+ * atp850_set_dmamode - Initialize host controller PATA PIO timings
+ * @ap: Port whose timings we are configuring
+ * @adev: Device whose timings we are configuring
+ *
+ * Set DMA mode for device, in host controller PCI config space.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void atp850_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ unsigned int pio;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ int dn = adev->devno + 2 * ap->port_no;
+ u8 ultra;
+
+ if (adev->dma_mode == XFER_MW_DMA_0)
+ pio = 1;
+ else
+ pio = 4;
+
+ /* Load the PIO timing active/recovery bits */
+ atp850_load_piomode(ap, adev, pio);
+
+ pci_read_config_byte(pdev, 0x54, &ultra);
+ ultra &= ~(3 << (2 * dn));
+
+ /* Add ultra DMA bits if in UDMA mode */
+ if (adev->dma_mode >= XFER_UDMA_0) {
+ u8 mode = (adev->dma_mode - XFER_UDMA_0) + 1;
+ if (mode == 0)
+ mode = 1;
+ ultra |= (mode << (2 * dn));
+ }
+ pci_write_config_byte(pdev, 0x54, ultra);
+}
+
+/**
+ * atp86x_set_dmamode - Initialize host controller PATA PIO timings
+ * @ap: Port whose timings we are configuring
+ * @adev: Device we are configuring
+ *
+ * Set DMA mode for device, in host controller PCI config space.
+ * The ATP860 and relatives store the timing data differently.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void atp86x_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+{
+ unsigned int pio = adev->pio_mode - XFER_PIO_0;
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+ u8 ultra;
+
+ if (adev->dma_mode == XFER_MW_DMA_0)
+ pio = 1;
+ else
+ pio = 4;
+
+ /* Load the PIO timing active/recovery bits */
+ atp86x_load_piomode(ap, adev, pio);
+
+ /* Add ultra DMA bits if in UDMA mode */
+ pci_read_config_byte(pdev, 0x44 + ap->port_no, &ultra);
+ ultra &= ~(7 << (4 * adev->devno)); /* One nibble per drive */
+ if (adev->dma_mode >= XFER_UDMA_0) {
+ u8 mode = adev->dma_mode - XFER_UDMA_0 + 1;
+ if (mode == 0)
+ mode = 1;
+ ultra |= (mode << (4 * adev->devno));
+ }
+ pci_write_config_byte(pdev, 0x44 + ap->port_no, ultra);
+}
+
+static int atp8xx_fixup(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ if (pdev->device == 0x0005)
+ /* BIOS may have left us in UDMA, clear it before probe */
+ pci_write_config_byte(pdev, 0x54, 0);
+ else if (pdev->device == 0x0008 || pdev->device == 0x0009) {
+ u8 reg;
+
+ /* Mac systems come up with some registers not set as we
+ will need them */
+
+ /* Clear reset & test bits */
+ pci_read_config_byte(pdev, 0x49, ®);
+ pci_write_config_byte(pdev, 0x49, reg & ~0x30);
+
+ /* PCI latency must be > 0x80 for burst mode, tweak it
+ * if required.
+ */
+ pci_read_config_byte(pdev, PCI_LATENCY_TIMER, ®);
+ if (reg <= 0x80)
+ pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x90);
+
+ /* Enable IRQ output and burst mode */
+ pci_read_config_byte(pdev, 0x4a, ®);
+ pci_write_config_byte(pdev, 0x4a, (reg & ~0x01) | 0x80);
+ }
+
+ return 0;
+}
--
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