diff options
Diffstat (limited to 'drivers/ide/falconide.c')
| -rw-r--r-- | drivers/ide/falconide.c | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/drivers/ide/falconide.c b/drivers/ide/falconide.c deleted file mode 100644 index bb86d84558d9..000000000000 --- a/drivers/ide/falconide.c +++ /dev/null @@ -1,197 +0,0 @@ -/* - * Atari Falcon IDE Driver - * - * Created 12 Jul 1997 by Geert Uytterhoeven - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive for - * more details. - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <linux/blkdev.h> -#include <linux/ide.h> -#include <linux/init.h> -#include <linux/platform_device.h> - -#include <asm/setup.h> -#include <asm/atarihw.h> -#include <asm/atariints.h> -#include <asm/atari_stdma.h> -#include <asm/ide.h> - -#define DRV_NAME "falconide" - - /* - * Offsets from base address - */ - -#define ATA_HD_CONTROL 0x39 - - /* - * falconide_intr_lock is used to obtain access to the IDE interrupt, - * which is shared between several drivers. - */ - -static int falconide_intr_lock; - -static void falconide_release_lock(void) -{ - if (falconide_intr_lock == 0) { - printk(KERN_ERR "%s: bug\n", __func__); - return; - } - falconide_intr_lock = 0; - stdma_release(); -} - -static void falconide_get_lock(irq_handler_t handler, void *data) -{ - if (falconide_intr_lock == 0) { - stdma_lock(handler, data); - falconide_intr_lock = 1; - } -} - -static void falconide_input_data(ide_drive_t *drive, struct ide_cmd *cmd, - void *buf, unsigned int len) -{ - unsigned long data_addr = drive->hwif->io_ports.data_addr; - - if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS)) { - __ide_mm_insw(data_addr, buf, (len + 1) / 2); - return; - } - - raw_insw_swapw((u16 *)data_addr, buf, (len + 1) / 2); -} - -static void falconide_output_data(ide_drive_t *drive, struct ide_cmd *cmd, - void *buf, unsigned int len) -{ - unsigned long data_addr = drive->hwif->io_ports.data_addr; - - if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS)) { - __ide_mm_outsw(data_addr, buf, (len + 1) / 2); - return; - } - - raw_outsw_swapw((u16 *)data_addr, buf, (len + 1) / 2); -} - -/* Atari has a byte-swapped IDE interface */ -static const struct ide_tp_ops falconide_tp_ops = { - .exec_command = ide_exec_command, - .read_status = ide_read_status, - .read_altstatus = ide_read_altstatus, - .write_devctl = ide_write_devctl, - - .dev_select = ide_dev_select, - .tf_load = ide_tf_load, - .tf_read = ide_tf_read, - - .input_data = falconide_input_data, - .output_data = falconide_output_data, -}; - -static const struct ide_port_info falconide_port_info = { - .get_lock = falconide_get_lock, - .release_lock = falconide_release_lock, - .tp_ops = &falconide_tp_ops, - .host_flags = IDE_HFLAG_MMIO | IDE_HFLAG_SERIALIZE | - IDE_HFLAG_NO_DMA, - .irq_flags = IRQF_SHARED, - .chipset = ide_generic, -}; - -static void __init falconide_setup_ports(struct ide_hw *hw, unsigned long base) -{ - int i; - - memset(hw, 0, sizeof(*hw)); - - hw->io_ports.data_addr = base; - - for (i = 1; i < 8; i++) - hw->io_ports_array[i] = base + 1 + i * 4; - - hw->io_ports.ctl_addr = base + ATA_HD_CONTROL; - - hw->irq = IRQ_MFP_IDE; -} - - /* - * Probe for a Falcon IDE interface - */ - -static int __init falconide_init(struct platform_device *pdev) -{ - struct resource *res; - struct ide_host *host; - struct ide_hw hw, *hws[] = { &hw }; - unsigned long base; - int rc; - - dev_info(&pdev->dev, "Atari Falcon IDE controller\n"); - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -ENODEV; - - if (!devm_request_mem_region(&pdev->dev, res->start, - resource_size(res), DRV_NAME)) { - dev_err(&pdev->dev, "resources busy\n"); - return -EBUSY; - } - - base = (unsigned long)res->start; - - falconide_setup_ports(&hw, base); - - host = ide_host_alloc(&falconide_port_info, hws, 1); - if (host == NULL) { - rc = -ENOMEM; - goto err; - } - - falconide_get_lock(NULL, NULL); - rc = ide_host_register(host, &falconide_port_info, hws); - falconide_release_lock(); - - if (rc) - goto err_free; - - platform_set_drvdata(pdev, host); - return 0; -err_free: - ide_host_free(host); -err: - release_mem_region(res->start, resource_size(res)); - return rc; -} - -static int falconide_remove(struct platform_device *pdev) -{ - struct ide_host *host = platform_get_drvdata(pdev); - - ide_host_remove(host); - - return 0; -} - -static struct platform_driver ide_falcon_driver = { - .remove = falconide_remove, - .driver = { - .name = "atari-falcon-ide", - }, -}; - -module_platform_driver_probe(ide_falcon_driver, falconide_init); - -MODULE_AUTHOR("Geert Uytterhoeven"); -MODULE_DESCRIPTION("low-level driver for Atari Falcon IDE"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:atari-falcon-ide"); |