397 static void __init check_prefetch (unsigned int index)  in check_prefetch()  argument
399 	ide_drive_t *drive = cmd_drives[index];  in check_prefetch()
400 	u8 b = get_cmd640_reg(prefetch_regs[index]);  in check_prefetch()
402 	if (b & prefetch_masks[index]) {	/* is prefetch off? */  in check_prefetch()
444 static void set_prefetch_mode (unsigned int index, int mode)  in set_prefetch_mode()  argument
446 	ide_drive_t *drive = cmd_drives[index];  in set_prefetch_mode()
447 	int reg = prefetch_regs[index];  in set_prefetch_mode()
459 		b &= ~prefetch_masks[index];	/* enable prefetch */  in set_prefetch_mode()
464 		b |= prefetch_masks[index];	/* disable prefetch */  in set_prefetch_mode()
473 static void display_clocks (unsigned int index)  in display_clocks()  argument
477 	active_count = active_counts[index];  in display_clocks()
480 	recovery_count = recovery_counts[index];  in display_clocks()
485 	printk(", clocks=%d/%d/%d\n", setup_counts[index], active_count, recovery_count);  in display_clocks()
500 static void __init retrieve_drive_counts (unsigned int index)  in retrieve_drive_counts()  argument
507 	b = get_cmd640_reg(arttim_regs[index]) & ~0x3f;  in retrieve_drive_counts()
514 	setup_counts[index] = b;  in retrieve_drive_counts()
519 	b = get_cmd640_reg(drwtim_regs[index]);  in retrieve_drive_counts()
520 	active_counts[index]   = (b >> 4)   ? (b >> 4)   : 0x10;  in retrieve_drive_counts()
521 	recovery_counts[index] = (b & 0x0f) ? (b & 0x0f) : 0x10;  in retrieve_drive_counts()
529 static void program_drive_counts (unsigned int index)  in program_drive_counts()  argument
532 	u8 setup_count    = setup_counts[index];  in program_drive_counts()
533 	u8 active_count   = active_counts[index];  in program_drive_counts()
534 	u8 recovery_count = recovery_counts[index];  in program_drive_counts()
542 	if (index > 1) {  in program_drive_counts()
544 		if (cmd_drives[mate = index ^ 1]->present) {  in program_drive_counts()
574 	setup_count |= __get_cmd640_reg(arttim_regs[index]) & 0x3f;  in program_drive_counts()
575 	__put_cmd640_reg(arttim_regs[index], setup_count);  in program_drive_counts()
576 	__put_cmd640_reg(drwtim_regs[index], pack_nibbles(active_count, recovery_count));  in program_drive_counts()
583 static void cmd640_set_mode (unsigned int index, u8 pio_mode, unsigned int cycle_time)  in cmd640_set_mode()  argument
620 	setup_counts[index]    = setup_count;  in cmd640_set_mode()
621 	active_counts[index]   = active_count;  in cmd640_set_mode()
622 	recovery_counts[index] = recovery_count;  in cmd640_set_mode()
632 	program_drive_counts (index);  in cmd640_set_mode()
642 	unsigned int index = 0;  in cmd640_tune_drive()  local
644 	while (drive != cmd_drives[index]) {  in cmd640_tune_drive()
645 		if (++index > 3) {  in cmd640_tune_drive()
664 			set_prefetch_mode(index, mode_wanted);  in cmd640_tune_drive()
670 	cmd640_set_mode (index, d.pio_mode, d.cycle_time);  in cmd640_tune_drive()
677 	display_clocks(index);  in cmd640_tune_drive()
728 	unsigned int index;  in ide_probe_for_cmd640x()  local
841 	for (index = 0; index < (2 + (second_port_cmd640 << 1)); index++) {  in ide_probe_for_cmd640x()
842 		ide_drive_t *drive = cmd_drives[index];  in ide_probe_for_cmd640x()
844 		if (drive->autotune || ((index > 1) && second_port_toggled)) {  in ide_probe_for_cmd640x()
849 			setup_counts    [index] = 4;	/* max possible */  in ide_probe_for_cmd640x()
850 			active_counts   [index] = 16;	/* max possible */  in ide_probe_for_cmd640x()
851 			recovery_counts [index] = 16;	/* max possible */  in ide_probe_for_cmd640x()
852 			program_drive_counts (index);  in ide_probe_for_cmd640x()
853 			set_prefetch_mode (index, 0);  in ide_probe_for_cmd640x()
854 			printk("cmd640: drive%d timings/prefetch cleared\n", index);  in ide_probe_for_cmd640x()
860 			retrieve_drive_counts (index);  in ide_probe_for_cmd640x()
861 			check_prefetch (index);  in ide_probe_for_cmd640x()
863 				index, drive->no_io_32bit ? "off" : "on");  in ide_probe_for_cmd640x()
864 			display_clocks(index);  in ide_probe_for_cmd640x()
870 		check_prefetch (index);  in ide_probe_for_cmd640x()
872 			index, drive->no_io_32bit ? "off" : "on");  in ide_probe_for_cmd640x()