diff options
Diffstat (limited to 'drivers/ide/legacy/umc8672.c')
| -rw-r--r-- | drivers/ide/legacy/umc8672.c | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/drivers/ide/legacy/umc8672.c b/drivers/ide/legacy/umc8672.c deleted file mode 100644 index 5696ba02600..00000000000 --- a/drivers/ide/legacy/umc8672.c +++ /dev/null @@ -1,179 +0,0 @@ -/* - * Copyright (C) 1995-1996 Linus Torvalds & author (see below) - */ - -/* - * Principal Author/Maintainer: PODIEN@hml2.atlas.de (Wolfram Podien) - * - * This file provides support for the advanced features - * of the UMC 8672 IDE interface. - * - * Version 0.01 Initial version, hacked out of ide.c, - * and #include'd rather than compiled separately. - * This will get cleaned up in a subsequent release. - * - * Version 0.02 now configs/compiles separate from ide.c -ml - * Version 0.03 enhanced auto-tune, fix display bug - * Version 0.05 replace sti() with restore_flags() -ml - * add detection of possible race condition -ml - */ - -/* - * VLB Controller Support from - * Wolfram Podien - * Rohoefe 3 - * D28832 Achim - * Germany - * - * To enable UMC8672 support there must a lilo line like - * append="ide0=umc8672"... - * To set the speed according to the abilities of the hardware there must be a - * line like - * #define UMC_DRIVE0 11 - * in the beginning of the driver, which sets the speed of drive 0 to 11 (there - * are some lines present). 0 - 11 are allowed speed values. These values are - * the results from the DOS speed test program supplied from UMC. 11 is the - * highest speed (about PIO mode 3) - */ -#define REALLY_SLOW_IO /* some systems can safely undef this */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/timer.h> -#include <linux/mm.h> -#include <linux/ioport.h> -#include <linux/blkdev.h> -#include <linux/hdreg.h> -#include <linux/ide.h> -#include <linux/init.h> - -#include <asm/io.h> - -/* - * Default speeds. These can be changed with "auto-tune" and/or hdparm. - */ -#define UMC_DRIVE0 1 /* DOS measured drive speeds */ -#define UMC_DRIVE1 1 /* 0 to 11 allowed */ -#define UMC_DRIVE2 1 /* 11 = Fastest Speed */ -#define UMC_DRIVE3 1 /* In case of crash reduce speed */ - -static u8 current_speeds[4] = {UMC_DRIVE0, UMC_DRIVE1, UMC_DRIVE2, UMC_DRIVE3}; -static const u8 pio_to_umc [5] = {0,3,7,10,11}; /* rough guesses */ - -/* 0 1 2 3 4 5 6 7 8 9 10 11 */ -static const u8 speedtab [3][12] = { - {0xf, 0xb, 0x2, 0x2, 0x2, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1 }, - {0x3, 0x2, 0x2, 0x2, 0x2, 0x2, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1 }, - {0xff,0xcb,0xc0,0x58,0x36,0x33,0x23,0x22,0x21,0x11,0x10,0x0}}; - -static void out_umc (char port,char wert) -{ - outb_p(port,0x108); - outb_p(wert,0x109); -} - -static inline u8 in_umc (char port) -{ - outb_p(port,0x108); - return inb_p(0x109); -} - -static void umc_set_speeds (u8 speeds[]) -{ - int i, tmp; - - outb_p(0x5A,0x108); /* enable umc */ - - out_umc (0xd7,(speedtab[0][speeds[2]] | (speedtab[0][speeds[3]]<<4))); - out_umc (0xd6,(speedtab[0][speeds[0]] | (speedtab[0][speeds[1]]<<4))); - tmp = 0; - for (i = 3; i >= 0; i--) { - tmp = (tmp << 2) | speedtab[1][speeds[i]]; - } - out_umc (0xdc,tmp); - for (i = 0;i < 4; i++) { - out_umc (0xd0+i,speedtab[2][speeds[i]]); - out_umc (0xd8+i,speedtab[2][speeds[i]]); - } - outb_p(0xa5,0x108); /* disable umc */ - - printk ("umc8672: drive speeds [0 to 11]: %d %d %d %d\n", - speeds[0], speeds[1], speeds[2], speeds[3]); -} - -static void umc_set_pio_mode(ide_drive_t *drive, const u8 pio) -{ - unsigned long flags; - ide_hwgroup_t *hwgroup = ide_hwifs[HWIF(drive)->index^1].hwgroup; - - printk("%s: setting umc8672 to PIO mode%d (speed %d)\n", - drive->name, pio, pio_to_umc[pio]); - spin_lock_irqsave(&ide_lock, flags); - if (hwgroup && hwgroup->handler != NULL) { - printk(KERN_ERR "umc8672: other interface is busy: exiting tune_umc()\n"); - } else { - current_speeds[drive->name[2] - 'a'] = pio_to_umc[pio]; - umc_set_speeds (current_speeds); - } - spin_unlock_irqrestore(&ide_lock, flags); -} - -static const struct ide_port_info umc8672_port_info __initdata = { - .chipset = ide_umc8672, - .host_flags = IDE_HFLAG_NO_DMA | IDE_HFLAG_NO_AUTOTUNE, - .pio_mask = ATA_PIO4, -}; - -static int __init umc8672_probe(void) -{ - unsigned long flags; - static u8 idx[4] = { 0, 1, 0xff, 0xff }; - - if (!request_region(0x108, 2, "umc8672")) { - printk(KERN_ERR "umc8672: ports 0x108-0x109 already in use.\n"); - return 1; - } - local_irq_save(flags); - outb_p(0x5A,0x108); /* enable umc */ - if (in_umc (0xd5) != 0xa0) { - local_irq_restore(flags); - printk(KERN_ERR "umc8672: not found\n"); - release_region(0x108, 2); - return 1; - } - outb_p(0xa5,0x108); /* disable umc */ - - umc_set_speeds (current_speeds); - local_irq_restore(flags); - - ide_hwifs[0].set_pio_mode = &umc_set_pio_mode; - ide_hwifs[1].set_pio_mode = &umc_set_pio_mode; - - ide_device_add(idx, &umc8672_port_info); - - return 0; -} - -int probe_umc8672 = 0; - -module_param_named(probe, probe_umc8672, bool, 0); -MODULE_PARM_DESC(probe, "probe for UMC8672 chipset"); - -static int __init umc8672_init(void) -{ - if (probe_umc8672 == 0) - goto out; - - if (umc8672_probe() == 0) - return 0;; -out: - return -ENODEV;; -} - -module_init(umc8672_init); - -MODULE_AUTHOR("Wolfram Podien"); -MODULE_DESCRIPTION("Support for UMC 8672 IDE chipset"); -MODULE_LICENSE("GPL"); |