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path: root/drivers/ide/pci/ns87415.c
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Diffstat (limited to 'drivers/ide/pci/ns87415.c')
-rw-r--r--drivers/ide/pci/ns87415.c164
1 files changed, 88 insertions, 76 deletions
diff --git a/drivers/ide/pci/ns87415.c b/drivers/ide/pci/ns87415.c
index fec4955f449..13789060f40 100644
--- a/drivers/ide/pci/ns87415.c
+++ b/drivers/ide/pci/ns87415.c
@@ -11,7 +11,6 @@
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/interrupt.h>
-#include <linux/hdreg.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/ide.h>
@@ -19,6 +18,8 @@
#include <asm/io.h>
+#define DRV_NAME "ns87415"
+
#ifdef CONFIG_SUPERIO
/* SUPERIO 87560 is a PoS chip that NatSem denies exists.
* Unfortunately, it's built-in on all Astro-based PA-RISC workstations
@@ -28,10 +29,6 @@
*/
#include <asm/superio.h>
-static unsigned long superio_ide_status[2];
-static unsigned long superio_ide_select[2];
-static unsigned long superio_ide_dma_status[2];
-
#define SUPERIO_IDE_MAX_RETRIES 25
/* Because of a defect in Super I/O, all reads of the PCI DMA status
@@ -40,27 +37,28 @@ static unsigned long superio_ide_dma_status[2];
*/
static u8 superio_ide_inb (unsigned long port)
{
- if (port == superio_ide_status[0] ||
- port == superio_ide_status[1] ||
- port == superio_ide_select[0] ||
- port == superio_ide_select[1] ||
- port == superio_ide_dma_status[0] ||
- port == superio_ide_dma_status[1]) {
- u8 tmp;
- int retries = SUPERIO_IDE_MAX_RETRIES;
+ u8 tmp;
+ int retries = SUPERIO_IDE_MAX_RETRIES;
- /* printk(" [ reading port 0x%x with retry ] ", port); */
+ /* printk(" [ reading port 0x%x with retry ] ", port); */
- do {
- tmp = inb(port);
- if (tmp == 0)
- udelay(50);
- } while (tmp == 0 && retries-- > 0);
+ do {
+ tmp = inb(port);
+ if (tmp == 0)
+ udelay(50);
+ } while (tmp == 0 && retries-- > 0);
- return tmp;
- }
+ return tmp;
+}
- return inb(port);
+static u8 superio_read_status(ide_hwif_t *hwif)
+{
+ return superio_ide_inb(hwif->io_ports.status_addr);
+}
+
+static u8 superio_read_sff_dma_status(ide_hwif_t *hwif)
+{
+ return superio_ide_inb(hwif->dma_base + ATA_DMA_STATUS);
}
static void superio_tf_read(ide_drive_t *drive, ide_task_t *task)
@@ -76,8 +74,10 @@ static void superio_tf_read(ide_drive_t *drive, ide_task_t *task)
}
/* be sure we're looking at the low order bits */
- outb(drive->ctl & ~0x80, io_ports->ctl_addr);
+ outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr);
+ if (task->tf_flags & IDE_TFLAG_IN_FEATURE)
+ tf->feature = inb(io_ports->feature_addr);
if (task->tf_flags & IDE_TFLAG_IN_NSECT)
tf->nsect = inb(io_ports->nsect_addr);
if (task->tf_flags & IDE_TFLAG_IN_LBAL)
@@ -90,7 +90,7 @@ static void superio_tf_read(ide_drive_t *drive, ide_task_t *task)
tf->device = superio_ide_inb(io_ports->device_addr);
if (task->tf_flags & IDE_TFLAG_LBA48) {
- outb(drive->ctl | 0x80, io_ports->ctl_addr);
+ outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr);
if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
tf->hob_feature = inb(io_ports->feature_addr);
@@ -105,43 +105,39 @@ static void superio_tf_read(ide_drive_t *drive, ide_task_t *task)
}
}
-static void __devinit superio_ide_init_iops (struct hwif_s *hwif)
-{
- struct pci_dev *pdev = to_pci_dev(hwif->dev);
- u32 base, dmabase;
- u8 port = hwif->channel, tmp;
+static const struct ide_tp_ops superio_tp_ops = {
+ .exec_command = ide_exec_command,
+ .read_status = superio_read_status,
+ .read_altstatus = ide_read_altstatus,
+ .read_sff_dma_status = superio_read_sff_dma_status,
- base = pci_resource_start(pdev, port * 2) & ~3;
- dmabase = pci_resource_start(pdev, 4) & ~3;
+ .set_irq = ide_set_irq,
- superio_ide_status[port] = base + 7;
- superio_ide_select[port] = base + 6;
- superio_ide_dma_status[port] = dmabase + (!port ? 2 : 0xa);
-
- /* Clear error/interrupt, enable dma */
- tmp = superio_ide_inb(superio_ide_dma_status[port]);
- outb(tmp | 0x66, superio_ide_dma_status[port]);
+ .tf_load = ide_tf_load,
+ .tf_read = superio_tf_read,
- hwif->tf_read = superio_tf_read;
-
- /* We need to override inb to workaround a SuperIO errata */
- hwif->INB = superio_ide_inb;
-}
+ .input_data = ide_input_data,
+ .output_data = ide_output_data,
+};
-static void __devinit init_iops_ns87415(ide_hwif_t *hwif)
+static void __devinit superio_init_iops(struct hwif_s *hwif)
{
- struct pci_dev *dev = to_pci_dev(hwif->dev);
+ struct pci_dev *pdev = to_pci_dev(hwif->dev);
+ u32 dma_stat;
+ u8 port = hwif->channel, tmp;
- if (PCI_SLOT(dev->devfn) == 0xE)
- /* Built-in - assume it's under superio. */
- superio_ide_init_iops(hwif);
+ dma_stat = (pci_resource_start(pdev, 4) & ~3) + (!port ? 2 : 0xa);
+
+ /* Clear error/interrupt, enable dma */
+ tmp = superio_ide_inb(dma_stat);
+ outb(tmp | 0x66, dma_stat);
}
#endif
static unsigned int ns87415_count = 0, ns87415_control[MAX_HWIFS] = { 0 };
/*
- * This routine either enables/disables (according to drive->present)
+ * This routine either enables/disables (according to IDE_DFLAG_PRESENT)
* the IRQ associated with the port (HWIF(drive)),
* and selects either PIO or DMA handshaking for the next I/O operation.
*/
@@ -157,11 +153,15 @@ static void ns87415_prepare_drive (ide_drive_t *drive, unsigned int use_dma)
/* Adjust IRQ enable bit */
bit = 1 << (8 + hwif->channel);
- new = drive->present ? (new & ~bit) : (new | bit);
+
+ if (drive->dev_flags & IDE_DFLAG_PRESENT)
+ new &= ~bit;
+ else
+ new |= bit;
/* Select PIO or DMA, DMA may only be selected for one drive/channel. */
- bit = 1 << (20 + drive->select.b.unit + (hwif->channel << 1));
- other = 1 << (20 + (1 - drive->select.b.unit) + (hwif->channel << 1));
+ bit = 1 << (20 + (drive->dn & 1) + (hwif->channel << 1));
+ other = 1 << (20 + (1 - (drive->dn & 1)) + (hwif->channel << 1));
new = use_dma ? ((new & ~other) | bit) : (new & ~bit);
if (new != *old) {
@@ -191,7 +191,8 @@ static void ns87415_prepare_drive (ide_drive_t *drive, unsigned int use_dma)
static void ns87415_selectproc (ide_drive_t *drive)
{
- ns87415_prepare_drive (drive, drive->using_dma);
+ ns87415_prepare_drive(drive,
+ !!(drive->dev_flags & IDE_DFLAG_USING_DMA));
}
static int ns87415_dma_end(ide_drive_t *drive)
@@ -200,14 +201,14 @@ static int ns87415_dma_end(ide_drive_t *drive)
u8 dma_stat = 0, dma_cmd = 0;
drive->waiting_for_dma = 0;
- dma_stat = hwif->INB(hwif->dma_status);
- /* get dma command mode */
- dma_cmd = hwif->INB(hwif->dma_command);
+ dma_stat = hwif->tp_ops->read_sff_dma_status(hwif);
+ /* get DMA command mode */
+ dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD);
/* stop DMA */
- outb(dma_cmd & ~1, hwif->dma_command);
+ outb(dma_cmd & ~1, hwif->dma_base + ATA_DMA_CMD);
/* from ERRATA: clear the INTR & ERROR bits */
- dma_cmd = hwif->INB(hwif->dma_command);
- outb(dma_cmd | 6, hwif->dma_command);
+ dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD);
+ outb(dma_cmd | 6, hwif->dma_base + ATA_DMA_CMD);
/* and free any DMA resources */
ide_destroy_dmatable(drive);
/* verify good DMA status */
@@ -225,10 +226,6 @@ static int ns87415_dma_setup(ide_drive_t *drive)
return 1;
}
-#ifndef ide_default_irq
-#define ide_default_irq(irq) 0
-#endif
-
static void __devinit init_hwif_ns87415 (ide_hwif_t *hwif)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
@@ -280,22 +277,22 @@ static void __devinit init_hwif_ns87415 (ide_hwif_t *hwif)
outb(8, hwif->io_ports.ctl_addr);
do {
udelay(50);
- stat = hwif->INB(hwif->io_ports.status_addr);
- if (stat == 0xff)
- break;
- } while ((stat & BUSY_STAT) && --timeout);
+ stat = hwif->tp_ops->read_status(hwif);
+ if (stat == 0xff)
+ break;
+ } while ((stat & ATA_BUSY) && --timeout);
#endif
}
if (!using_inta)
- hwif->irq = ide_default_irq(hwif->io_ports.data_addr);
+ hwif->irq = __ide_default_irq(hwif->io_ports.data_addr);
else if (!hwif->irq && hwif->mate && hwif->mate->irq)
hwif->irq = hwif->mate->irq; /* share IRQ with mate */
if (!hwif->dma_base)
return;
- outb(0x60, hwif->dma_status);
+ outb(0x60, hwif->dma_base + ATA_DMA_STATUS);
}
static const struct ide_port_ops ns87415_port_ops = {
@@ -314,10 +311,7 @@ static const struct ide_dma_ops ns87415_dma_ops = {
};
static const struct ide_port_info ns87415_chipset __devinitdata = {
- .name = "NS87415",
-#ifdef CONFIG_SUPERIO
- .init_iops = init_iops_ns87415,
-#endif
+ .name = DRV_NAME,
.init_hwif = init_hwif_ns87415,
.port_ops = &ns87415_port_ops,
.dma_ops = &ns87415_dma_ops,
@@ -327,7 +321,16 @@ static const struct ide_port_info ns87415_chipset __devinitdata = {
static int __devinit ns87415_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
- return ide_setup_pci_device(dev, &ns87415_chipset);
+ struct ide_port_info d = ns87415_chipset;
+
+#ifdef CONFIG_SUPERIO
+ if (PCI_SLOT(dev->devfn) == 0xE) {
+ /* Built-in - assume it's under superio. */
+ d.init_iops = superio_init_iops;
+ d.tp_ops = &superio_tp_ops;
+ }
+#endif
+ return ide_pci_init_one(dev, &d, NULL);
}
static const struct pci_device_id ns87415_pci_tbl[] = {
@@ -336,18 +339,27 @@ static const struct pci_device_id ns87415_pci_tbl[] = {
};
MODULE_DEVICE_TABLE(pci, ns87415_pci_tbl);
-static struct pci_driver driver = {
+static struct pci_driver ns87415_pci_driver = {
.name = "NS87415_IDE",
.id_table = ns87415_pci_tbl,
.probe = ns87415_init_one,
+ .remove = ide_pci_remove,
+ .suspend = ide_pci_suspend,
+ .resume = ide_pci_resume,
};
static int __init ns87415_ide_init(void)
{
- return ide_pci_register_driver(&driver);
+ return ide_pci_register_driver(&ns87415_pci_driver);
+}
+
+static void __exit ns87415_ide_exit(void)
+{
+ pci_unregister_driver(&ns87415_pci_driver);
}
module_init(ns87415_ide_init);
+module_exit(ns87415_ide_exit);
MODULE_AUTHOR("Mark Lord, Eddie Dost, Andre Hedrick");
MODULE_DESCRIPTION("PCI driver module for NS87415 IDE");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-02 15:39:53 +0000