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/ide-4drives.c | 63 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 drivers/ide/ide-4drives.c (limited to 'drivers/ide/ide-4drives.c') diff --git a/drivers/ide/ide-4drives.c b/drivers/ide/ide-4drives.c new file mode 100644 index 00000000000..9e85b1ec960 --- /dev/null +++ b/drivers/ide/ide-4drives.c @@ -0,0 +1,63 @@ + +#include +#include +#include +#include + +#define DRV_NAME "ide-4drives" + +static int probe_4drives; + +module_param_named(probe, probe_4drives, bool, 0); +MODULE_PARM_DESC(probe, "probe for generic IDE chipset with 4 drives/port"); + +static void ide_4drives_init_dev(ide_drive_t *drive) +{ + if (drive->hwif->channel) + drive->select ^= 0x20; +} + +static const struct ide_port_ops ide_4drives_port_ops = { + .init_dev = ide_4drives_init_dev, +}; + +static const struct ide_port_info ide_4drives_port_info = { + .port_ops = &ide_4drives_port_ops, + .host_flags = IDE_HFLAG_SERIALIZE | IDE_HFLAG_NO_DMA, +}; + +static int __init ide_4drives_init(void) +{ + unsigned long base = 0x1f0, ctl = 0x3f6; + hw_regs_t hw, *hws[] = { &hw, &hw, NULL, NULL }; + + if (probe_4drives == 0) + return -ENODEV; + + if (!request_region(base, 8, DRV_NAME)) { + printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", + DRV_NAME, base, base + 7); + return -EBUSY; + } + + if (!request_region(ctl, 1, DRV_NAME)) { + printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n", + DRV_NAME, ctl); + release_region(base, 8); + return -EBUSY; + } + + memset(&hw, 0, sizeof(hw)); + + ide_std_init_ports(&hw, base, ctl); + hw.irq = 14; + hw.chipset = ide_4drives; + + return ide_host_add(&ide_4drives_port_info, hws, NULL); +} + +module_init(ide_4drives_init); + +MODULE_AUTHOR("Bartlomiej Zolnierkiewicz"); +MODULE_DESCRIPTION("generic IDE chipset with 4 drives/port support"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3-18-g5258