1 // SPDX-License-Identifier: GPL-2.0-only
3  *  Copyright (C) 1995-1996  Linus Torvalds & author (see below)
10  *  of the UMC 8672 IDE interface.
12  *  Version 0.01	Initial version, hacked out of ide.c,
16  *  Version 0.02	now configs/compiles separate from ide.c  -ml
17  *  Version 0.03	enhanced auto-tune, fix display bug
18  *  Version 0.05	replace sti() with restore_flags()  -ml
19  *			add detection of possible race condition  -ml
35  * are some lines present). 0 - 11 are allowed speed values. These values are
49 #include <linux/ide.h>
57  * Default speeds.  These can be changed with "auto-tune" and/or hdparm.
74 static void out_umc(char port, char wert)  in out_umc()  argument
76 	outb_p(port, 0x108);  in out_umc()
80 static inline u8 in_umc(char port)  in in_umc()  argument
82 	outb_p(port, 0x108);  in in_umc()
95 	for (i = 3; i >= 0; i--)  in umc_set_speeds()
110 	ide_hwif_t *mate = hwif->mate;  in umc_set_pio_mode()
112 	const u8 pio = drive->pio_mode - XFER_PIO_0;  in umc_set_pio_mode()
115 		drive->name, pio, pio_to_umc[pio]);  in umc_set_pio_mode()
117 		spin_lock_irqsave(&mate->lock, flags);  in umc_set_pio_mode()
118 	if (mate && mate->handler) {  in umc_set_pio_mode()
121 		current_speeds[drive->name[2] - 'a'] = pio_to_umc[pio];  in umc_set_pio_mode()
125 		spin_unlock_irqrestore(&mate->lock, flags);  in umc_set_pio_mode()
145 		printk(KERN_ERR "umc8672: ports 0x108-0x109 already in use.\n");  in umc8672_probe()
177 	return -ENODEV;  in umc8672_init()
183 MODULE_DESCRIPTION("Support for UMC 8672 IDE chipset");