diff options
Diffstat (limited to 'drivers/ide/pci/ns87415.c')
| -rw-r--r-- | drivers/ide/pci/ns87415.c | 126 |
1 files changed, 68 insertions, 58 deletions
diff --git a/drivers/ide/pci/ns87415.c b/drivers/ide/pci/ns87415.c index 45ba71a7182..ffefcd15196 100644 --- a/drivers/ide/pci/ns87415.c +++ b/drivers/ide/pci/ns87415.c @@ -19,6 +19,8 @@ #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 +30,6 @@ */ #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 +38,28 @@ 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) @@ -78,6 +77,8 @@ static void superio_tf_read(ide_drive_t *drive, ide_task_t *task) /* be sure we're looking at the low order bits */ 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) @@ -105,36 +106,32 @@ 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; - - base = pci_resource_start(pdev, port * 2) & ~3; - dmabase = pci_resource_start(pdev, 4) & ~3; - - superio_ide_status[port] = base + 7; - superio_ide_select[port] = base + 6; - superio_ide_dma_status[port] = dmabase + (!port ? 2 : 0xa); +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, - /* Clear error/interrupt, enable dma */ - tmp = superio_ide_inb(superio_ide_dma_status[port]); - outb(tmp | 0x66, superio_ide_dma_status[port]); + .set_irq = ide_set_irq, - hwif->tf_read = superio_tf_read; + .tf_load = ide_tf_load, + .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 @@ -200,14 +197,14 @@ 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 */ @@ -276,7 +273,7 @@ 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); + stat = hwif->tp_ops->read_status(hwif); if (stat == 0xff) break; } while ((stat & BUSY_STAT) && --timeout); @@ -291,7 +288,7 @@ static void __devinit init_hwif_ns87415 (ide_hwif_t *hwif) 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 = { @@ -310,10 +307,7 @@ 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, @@ -323,7 +317,16 @@ 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[] = { @@ -336,6 +339,7 @@ static struct pci_driver driver = { .name = "NS87415_IDE", .id_table = ns87415_pci_tbl, .probe = ns87415_init_one, + .remove = ide_pci_remove, }; static int __init ns87415_ide_init(void) @@ -343,7 +347,13 @@ static int __init ns87415_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit ns87415_ide_exit(void) +{ + pci_unregister_driver(&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"); |