diff options
Diffstat (limited to 'drivers/ide/ide-pnp.c')
| -rw-r--r-- | drivers/ide/ide-pnp.c | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/drivers/ide/ide-pnp.c b/drivers/ide/ide-pnp.c new file mode 100644 index 0000000..bac9b39 --- /dev/null +++ b/drivers/ide/ide-pnp.c @@ -0,0 +1,107 @@ +/* + * This file provides autodetection for ISA PnP IDE interfaces. + * It was tested with "ESS ES1868 Plug and Play AudioDrive" IDE interface. + * + * Copyright (C) 2000 Andrey Panin <pazke@donpac.ru> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * You should have received a copy of the GNU General Public License + * (for example /usr/src/linux/COPYING); if not, write to the Free + * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/init.h> +#include <linux/pnp.h> +#include <linux/ide.h> + +#define DRV_NAME "ide-pnp" + +/* Add your devices here :)) */ +static struct pnp_device_id idepnp_devices[] = { + /* Generic ESDI/IDE/ATA compatible hard disk controller */ + {.id = "PNP0600", .driver_data = 0}, + {.id = ""} +}; + +static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) +{ + struct ide_host *host; + unsigned long base, ctl; + int rc; + hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; + + printk(KERN_INFO DRV_NAME ": generic PnP IDE interface\n"); + + if (!(pnp_port_valid(dev, 0) && pnp_port_valid(dev, 1) && pnp_irq_valid(dev, 0))) + return -1; + + base = pnp_port_start(dev, 0); + ctl = pnp_port_start(dev, 1); + + 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 = pnp_irq(dev, 0); + hw.chipset = ide_generic; + + rc = ide_host_add(NULL, hws, &host); + if (rc) + goto out; + + pnp_set_drvdata(dev, host); + + return 0; +out: + release_region(ctl, 1); + release_region(base, 8); + + return rc; +} + +static void idepnp_remove(struct pnp_dev *dev) +{ + struct ide_host *host = pnp_get_drvdata(dev); + + ide_host_remove(host); + + release_region(pnp_port_start(dev, 1), 1); + release_region(pnp_port_start(dev, 0), 8); +} + +static struct pnp_driver idepnp_driver = { + .name = "ide", + .id_table = idepnp_devices, + .probe = idepnp_probe, + .remove = idepnp_remove, +}; + +static int __init pnpide_init(void) +{ + return pnp_register_driver(&idepnp_driver); +} + +static void __exit pnpide_exit(void) +{ + pnp_unregister_driver(&idepnp_driver); +} + +module_init(pnpide_init); +module_exit(pnpide_exit); + +MODULE_LICENSE("GPL"); |
