From 2bfba3c444fe8b2ab1c38112a89d8f03b61136ca Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 21 Oct 2008 20:57:23 +0200 Subject: ide: remove useless subdirs from drivers/ide/ Suggested-by: Ralf Baechle Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/pci/tc86c001.c | 270 --------------------------------------------- 1 file changed, 270 deletions(-) delete mode 100644 drivers/ide/pci/tc86c001.c (limited to 'drivers/ide/pci/tc86c001.c') diff --git a/drivers/ide/pci/tc86c001.c b/drivers/ide/pci/tc86c001.c deleted file mode 100644 index 93e2cce4b296..000000000000 --- a/drivers/ide/pci/tc86c001.c +++ /dev/null @@ -1,270 +0,0 @@ -/* - * Copyright (C) 2002 Toshiba Corporation - * Copyright (C) 2005-2006 MontaVista Software, Inc. - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#include -#include -#include - -#define DRV_NAME "tc86c001" - -static void tc86c001_set_mode(ide_drive_t *drive, const u8 speed) -{ - ide_hwif_t *hwif = HWIF(drive); - unsigned long scr_port = hwif->config_data + (drive->dn ? 0x02 : 0x00); - u16 mode, scr = inw(scr_port); - - switch (speed) { - case XFER_UDMA_4: mode = 0x00c0; break; - case XFER_UDMA_3: mode = 0x00b0; break; - case XFER_UDMA_2: mode = 0x00a0; break; - case XFER_UDMA_1: mode = 0x0090; break; - case XFER_UDMA_0: mode = 0x0080; break; - case XFER_MW_DMA_2: mode = 0x0070; break; - case XFER_MW_DMA_1: mode = 0x0060; break; - case XFER_MW_DMA_0: mode = 0x0050; break; - case XFER_PIO_4: mode = 0x0400; break; - case XFER_PIO_3: mode = 0x0300; break; - case XFER_PIO_2: mode = 0x0200; break; - case XFER_PIO_1: mode = 0x0100; break; - case XFER_PIO_0: - default: mode = 0x0000; break; - } - - scr &= (speed < XFER_MW_DMA_0) ? 0xf8ff : 0xff0f; - scr |= mode; - outw(scr, scr_port); -} - -static void tc86c001_set_pio_mode(ide_drive_t *drive, const u8 pio) -{ - tc86c001_set_mode(drive, XFER_PIO_0 + pio); -} - -/* - * HACKITY HACK - * - * This is a workaround for the limitation 5 of the TC86C001 IDE controller: - * if a DMA transfer terminates prematurely, the controller leaves the device's - * interrupt request (INTRQ) pending and does not generate a PCI interrupt (or - * set the interrupt bit in the DMA status register), thus no PCI interrupt - * will occur until a DMA transfer has been successfully completed. - * - * We work around this by initiating dummy, zero-length DMA transfer on - * a DMA timeout expiration. I found no better way to do this with the current - * IDE core than to temporarily replace a higher level driver's timer expiry - * handler with our own backing up to that handler in case our recovery fails. - */ -static int tc86c001_timer_expiry(ide_drive_t *drive) -{ - ide_hwif_t *hwif = HWIF(drive); - ide_expiry_t *expiry = ide_get_hwifdata(hwif); - ide_hwgroup_t *hwgroup = HWGROUP(drive); - u8 dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS); - - /* Restore a higher level driver's expiry handler first. */ - hwgroup->expiry = expiry; - - if ((dma_stat & 5) == 1) { /* DMA active and no interrupt */ - unsigned long sc_base = hwif->config_data; - unsigned long twcr_port = sc_base + (drive->dn ? 0x06 : 0x04); - u8 dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); - - printk(KERN_WARNING "%s: DMA interrupt possibly stuck, " - "attempting recovery...\n", drive->name); - - /* Stop DMA */ - outb(dma_cmd & ~0x01, hwif->dma_base + ATA_DMA_CMD); - - /* Setup the dummy DMA transfer */ - outw(0, sc_base + 0x0a); /* Sector Count */ - outw(0, twcr_port); /* Transfer Word Count 1 or 2 */ - - /* Start the dummy DMA transfer */ - - /* clear R_OR_WCTR for write */ - outb(0x00, hwif->dma_base + ATA_DMA_CMD); - /* set START_STOPBM */ - outb(0x01, hwif->dma_base + ATA_DMA_CMD); - - /* - * If an interrupt was pending, it should come thru shortly. - * If not, a higher level driver's expiry handler should - * eventually cause some kind of recovery from the DMA stall. - */ - return WAIT_MIN_SLEEP; - } - - /* Chain to the restored expiry handler if DMA wasn't active. */ - if (likely(expiry != NULL)) - return expiry(drive); - - /* If there was no handler, "emulate" that for ide_timer_expiry()... */ - return -1; -} - -static void tc86c001_dma_start(ide_drive_t *drive) -{ - ide_hwif_t *hwif = HWIF(drive); - ide_hwgroup_t *hwgroup = HWGROUP(drive); - unsigned long sc_base = hwif->config_data; - unsigned long twcr_port = sc_base + (drive->dn ? 0x06 : 0x04); - unsigned long nsectors = hwgroup->rq->nr_sectors; - - /* - * We have to manually load the sector count and size into - * the appropriate system control registers for DMA to work - * with LBA48 and ATAPI devices... - */ - outw(nsectors, sc_base + 0x0a); /* Sector Count */ - outw(SECTOR_SIZE / 2, twcr_port); /* Transfer Word Count 1/2 */ - - /* Install our timeout expiry hook, saving the current handler... */ - ide_set_hwifdata(hwif, hwgroup->expiry); - hwgroup->expiry = &tc86c001_timer_expiry; - - ide_dma_start(drive); -} - -static u8 tc86c001_cable_detect(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - unsigned long sc_base = pci_resource_start(dev, 5); - u16 scr1 = inw(sc_base + 0x00); - - /* - * System Control 1 Register bit 13 (PDIAGN): - * 0=80-pin cable, 1=40-pin cable - */ - return (scr1 & 0x2000) ? ATA_CBL_PATA40 : ATA_CBL_PATA80; -} - -static void __devinit init_hwif_tc86c001(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - unsigned long sc_base = pci_resource_start(dev, 5); - u16 scr1 = inw(sc_base + 0x00); - - /* System Control 1 Register bit 15 (Soft Reset) set */ - outw(scr1 | 0x8000, sc_base + 0x00); - - /* System Control 1 Register bit 14 (FIFO Reset) set */ - outw(scr1 | 0x4000, sc_base + 0x00); - - /* System Control 1 Register: reset clear */ - outw(scr1 & ~0xc000, sc_base + 0x00); - - /* Store the system control register base for convenience... */ - hwif->config_data = sc_base; - - if (!hwif->dma_base) - return; - - /* - * Sector Count Control Register bits 0 and 1 set: - * software sets Sector Count Register for master and slave device - */ - outw(0x0003, sc_base + 0x0c); - - /* Sector Count Register limit */ - hwif->rqsize = 0xffff; -} - -static const struct ide_port_ops tc86c001_port_ops = { - .set_pio_mode = tc86c001_set_pio_mode, - .set_dma_mode = tc86c001_set_mode, - .cable_detect = tc86c001_cable_detect, -}; - -static const struct ide_dma_ops tc86c001_dma_ops = { - .dma_host_set = ide_dma_host_set, - .dma_setup = ide_dma_setup, - .dma_exec_cmd = ide_dma_exec_cmd, - .dma_start = tc86c001_dma_start, - .dma_end = ide_dma_end, - .dma_test_irq = ide_dma_test_irq, - .dma_lost_irq = ide_dma_lost_irq, - .dma_timeout = ide_dma_timeout, -}; - -static const struct ide_port_info tc86c001_chipset __devinitdata = { - .name = DRV_NAME, - .init_hwif = init_hwif_tc86c001, - .port_ops = &tc86c001_port_ops, - .dma_ops = &tc86c001_dma_ops, - .host_flags = IDE_HFLAG_SINGLE | IDE_HFLAG_OFF_BOARD, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA4, -}; - -static int __devinit tc86c001_init_one(struct pci_dev *dev, - const struct pci_device_id *id) -{ - int rc; - - rc = pci_enable_device(dev); - if (rc) - goto out; - - rc = pci_request_region(dev, 5, DRV_NAME); - if (rc) { - printk(KERN_ERR DRV_NAME ": system control regs already in use"); - goto out_disable; - } - - rc = ide_pci_init_one(dev, &tc86c001_chipset, NULL); - if (rc) - goto out_release; - - goto out; - -out_release: - pci_release_region(dev, 5); -out_disable: - pci_disable_device(dev); -out: - return rc; -} - -static void __devexit tc86c001_remove(struct pci_dev *dev) -{ - ide_pci_remove(dev); - pci_release_region(dev, 5); - pci_disable_device(dev); -} - -static const struct pci_device_id tc86c001_pci_tbl[] = { - { PCI_VDEVICE(TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE), 0 }, - { 0, } -}; -MODULE_DEVICE_TABLE(pci, tc86c001_pci_tbl); - -static struct pci_driver tc86c001_pci_driver = { - .name = "TC86C001", - .id_table = tc86c001_pci_tbl, - .probe = tc86c001_init_one, - .remove = __devexit_p(tc86c001_remove), -}; - -static int __init tc86c001_ide_init(void) -{ - return ide_pci_register_driver(&tc86c001_pci_driver); -} - -static void __exit tc86c001_ide_exit(void) -{ - pci_unregister_driver(&tc86c001_pci_driver); -} - -module_init(tc86c001_ide_init); -module_exit(tc86c001_ide_exit); - -MODULE_AUTHOR("MontaVista Software, Inc. "); -MODULE_DESCRIPTION("PCI driver module for TC86C001 IDE"); -MODULE_LICENSE("GPL"); -- cgit v1.2.3