diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/ide/falconide.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/ide/falconide.c | 178 |
1 files changed, 0 insertions, 178 deletions
diff --git a/ANDROID_3.4.5/drivers/ide/falconide.c b/ANDROID_3.4.5/drivers/ide/falconide.c deleted file mode 100644 index a5a07ccb..00000000 --- a/ANDROID_3.4.5/drivers/ide/falconide.c +++ /dev/null @@ -1,178 +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 <asm/setup.h> -#include <asm/atarihw.h> -#include <asm/atariints.h> -#include <asm/atari_stdma.h> -#include <asm/ide.h> - -#define DRV_NAME "falconide" - - /* - * Base of the IDE interface - */ - -#define ATA_HD_BASE 0xfff00000 - - /* - * Offsets from the above base - */ - -#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) { - if (in_interrupt() > 0) - panic("Falcon IDE hasn't ST-DMA lock in interrupt"); - 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) -{ - int i; - - memset(hw, 0, sizeof(*hw)); - - hw->io_ports.data_addr = ATA_HD_BASE; - - for (i = 1; i < 8; i++) - hw->io_ports_array[i] = ATA_HD_BASE + 1 + i * 4; - - hw->io_ports.ctl_addr = ATA_HD_BASE + ATA_HD_CONTROL; - - hw->irq = IRQ_MFP_IDE; -} - - /* - * Probe for a Falcon IDE interface - */ - -static int __init falconide_init(void) -{ - struct ide_host *host; - struct ide_hw hw, *hws[] = { &hw }; - int rc; - - if (!MACH_IS_ATARI || !ATARIHW_PRESENT(IDE)) - return -ENODEV; - - printk(KERN_INFO "ide: Falcon IDE controller\n"); - - if (!request_mem_region(ATA_HD_BASE, 0x40, DRV_NAME)) { - printk(KERN_ERR "%s: resources busy\n", DRV_NAME); - return -EBUSY; - } - - falconide_setup_ports(&hw); - - 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; - - return 0; -err_free: - ide_host_free(host); -err: - release_mem_region(ATA_HD_BASE, 0x40); - return rc; -} - -module_init(falconide_init); - -MODULE_LICENSE("GPL"); |