+++ /dev/null
-/*
- * This file contains the driver for an XT hard disk controller
- * (at least the DTC 5150X) for Linux.
- *
- * Author: Pat Mackinlay, pat@it.com.au
- * Date: 29/09/92
- *
- * Revised: 01/01/93, ...
- *
- * Ref: DTC 5150X Controller Specification (thanks to Kevin Fowler,
- * kevinf@agora.rain.com)
- * Also thanks to: Salvador Abreu, Dave Thaler, Risto Kankkunen and
- * Wim Van Dorst.
- *
- * Revised: 04/04/94 by Risto Kankkunen
- * Moved the detection code from xd_init() to xd_geninit() as it needed
- * interrupts enabled and Linus didn't want to enable them in that first
- * phase. xd_geninit() is the place to do these kinds of things anyway,
- * he says.
- *
- * Modularized: 04/10/96 by Todd Fries, tfries@umr.edu
- *
- * Revised: 13/12/97 by Andrzej Krzysztofowicz, ankry@mif.pg.gda.pl
- * Fixed some problems with disk initialization and module initiation.
- * Added support for manual geometry setting (except Seagate controllers)
- * in form:
- * xd_geo=<cyl_xda>,<head_xda>,<sec_xda>[,<cyl_xdb>,<head_xdb>,<sec_xdb>]
- * Recovered DMA access. Abridged messages. Added support for DTC5051CX,
- * WD1002-27X & XEBEC controllers. Driver uses now some jumper settings.
- * Extended ioctl() support.
- *
- * Bugfix: 15/02/01, Paul G. - inform queue layer of tiny xd_maxsect.
- *
- */
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <linux/mm.h>
-#include <linux/fs.h>
-#include <linux/kernel.h>
-#include <linux/timer.h>
-#include <linux/genhd.h>
-#include <linux/hdreg.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/wait.h>
-#include <linux/blkdev.h>
-#include <linux/mutex.h>
-#include <linux/blkpg.h>
-#include <linux/delay.h>
-#include <linux/io.h>
-#include <linux/gfp.h>
-
-#include <asm/uaccess.h>
-#include <asm/dma.h>
-
-#include "xd.h"
-
-static DEFINE_MUTEX(xd_mutex);
-static void __init do_xd_setup (int *integers);
-#ifdef MODULE
-static int xd[5] = { -1,-1,-1,-1, };
-#endif
-
-#define XD_DONT_USE_DMA 0 /* Initial value. may be overriden using
- "nodma" module option */
-#define XD_INIT_DISK_DELAY (30) /* 30 ms delay during disk initialization */
-
-/* Above may need to be increased if a problem with the 2nd drive detection
- (ST11M controller) or resetting a controller (WD) appears */
-
-static XD_INFO xd_info[XD_MAXDRIVES];
-
-/* If you try this driver and find that your card is not detected by the driver at bootup, you need to add your BIOS
- signature and details to the following list of signatures. A BIOS signature is a string embedded into the first
- few bytes of your controller's on-board ROM BIOS. To find out what yours is, use something like MS-DOS's DEBUG
- command. Run DEBUG, and then you can examine your BIOS signature with:
-
- d xxxx:0000
-
- where xxxx is the segment of your controller (like C800 or D000 or something). On the ASCII dump at the right, you should
- be able to see a string mentioning the manufacturer's copyright etc. Add this string into the table below. The parameters
- in the table are, in order:
-
- offset ; this is the offset (in bytes) from the start of your ROM where the signature starts
- signature ; this is the actual text of the signature
- xd_?_init_controller ; this is the controller init routine used by your controller
- xd_?_init_drive ; this is the drive init routine used by your controller
-
- The controllers directly supported at the moment are: DTC 5150x, WD 1004A27X, ST11M/R and override. If your controller is
- made by the same manufacturer as one of these, try using the same init routines as they do. If that doesn't work, your
- best bet is to use the "override" routines. These routines use a "portable" method of getting the disk's geometry, and
- may work with your card. If none of these seem to work, try sending me some email and I'll see what I can do <grin>.
-
- NOTE: You can now specify your XT controller's parameters from the command line in the form xd=TYPE,IRQ,IO,DMA. The driver
- should be able to detect your drive's geometry from this info. (eg: xd=0,5,0x320,3 is the "standard"). */
-
-#include <asm/page.h>
-#define xd_dma_mem_alloc(size) __get_dma_pages(GFP_KERNEL,get_order(size))
-#define xd_dma_mem_free(addr, size) free_pages(addr, get_order(size))
-static char *xd_dma_buffer;
-
-static XD_SIGNATURE xd_sigs[] __initdata = {
- { 0x0000,"Override geometry handler",NULL,xd_override_init_drive,"n unknown" }, /* Pat Mackinlay, pat@it.com.au */
- { 0x0008,"[BXD06 (C) DTC 17-MAY-1985]",xd_dtc_init_controller,xd_dtc5150cx_init_drive," DTC 5150CX" }, /* Andrzej Krzysztofowicz, ankry@mif.pg.gda.pl */
- { 0x000B,"CRD18A Not an IBM rom. (C) Copyright Data Technology Corp. 05/31/88",xd_dtc_init_controller,xd_dtc_init_drive," DTC 5150X" }, /* Todd Fries, tfries@umr.edu */
- { 0x000B,"CXD23A Not an IBM ROM (C)Copyright Data Technology Corp 12/03/88",xd_dtc_init_controller,xd_dtc_init_drive," DTC 5150X" }, /* Pat Mackinlay, pat@it.com.au */
- { 0x0008,"07/15/86(C) Copyright 1986 Western Digital Corp.",xd_wd_init_controller,xd_wd_init_drive," Western Dig. 1002-27X" }, /* Andrzej Krzysztofowicz, ankry@mif.pg.gda.pl */
- { 0x0008,"06/24/88(C) Copyright 1988 Western Digital Corp.",xd_wd_init_controller,xd_wd_init_drive," Western Dig. WDXT-GEN2" }, /* Dan Newcombe, newcombe@aa.csc.peachnet.edu */
- { 0x0015,"SEAGATE ST11 BIOS REVISION",xd_seagate_init_controller,xd_seagate_init_drive," Seagate ST11M/R" }, /* Salvador Abreu, spa@fct.unl.pt */
- { 0x0010,"ST11R BIOS",xd_seagate_init_controller,xd_seagate_init_drive," Seagate ST11M/R" }, /* Risto Kankkunen, risto.kankkunen@cs.helsinki.fi */
- { 0x0010,"ST11 BIOS v1.7",xd_seagate_init_controller,xd_seagate_init_drive," Seagate ST11R" }, /* Alan Hourihane, alanh@fairlite.demon.co.uk */
- { 0x1000,"(c)Copyright 1987 SMS",xd_omti_init_controller,xd_omti_init_drive,"n OMTI 5520" }, /* Dirk Melchers, dirk@merlin.nbg.sub.org */
- { 0x0006,"COPYRIGHT XEBEC (C) 1984",xd_xebec_init_controller,xd_xebec_init_drive," XEBEC" }, /* Andrzej Krzysztofowicz, ankry@mif.pg.gda.pl */
- { 0x0008,"(C) Copyright 1984 Western Digital Corp", xd_wd_init_controller, xd_wd_init_drive," Western Dig. 1002s-wx2" },
- { 0x0008,"(C) Copyright 1986 Western Digital Corporation", xd_wd_init_controller, xd_wd_init_drive," 1986 Western Digital" }, /* jfree@sovereign.org */
-};
-
-static unsigned int xd_bases[] __initdata =
-{
- 0xC8000, 0xCA000, 0xCC000,
- 0xCE000, 0xD0000, 0xD2000,
- 0xD4000, 0xD6000, 0xD8000,
- 0xDA000, 0xDC000, 0xDE000,
- 0xE0000
-};
-
-static DEFINE_SPINLOCK(xd_lock);
-
-static struct gendisk *xd_gendisk[2];
-
-static int xd_getgeo(struct block_device *bdev, struct hd_geometry *geo);
-
-static const struct block_device_operations xd_fops = {
- .owner = THIS_MODULE,
- .ioctl = xd_ioctl,
- .getgeo = xd_getgeo,
-};
-static DECLARE_WAIT_QUEUE_HEAD(xd_wait_int);
-static u_char xd_drives, xd_irq = 5, xd_dma = 3, xd_maxsectors;
-static u_char xd_override __initdata = 0, xd_type __initdata = 0;
-static u_short xd_iobase = 0x320;
-static int xd_geo[XD_MAXDRIVES*3] __initdata = { 0, };
-
-static volatile int xdc_busy;
-static struct timer_list xd_watchdog_int;
-
-static volatile u_char xd_error;
-static bool nodma = XD_DONT_USE_DMA;
-
-static struct request_queue *xd_queue;
-
-/* xd_init: register the block device number and set up pointer tables */
-static int __init xd_init(void)
-{
- u_char i,controller;
- unsigned int address;
- int err;
-
-#ifdef MODULE
- {
- u_char count = 0;
- for (i = 4; i > 0; i--)
- if (((xd[i] = xd[i-1]) >= 0) && !count)
- count = i;
- if ((xd[0] = count))
- do_xd_setup(xd);
- }
-#endif
-
- init_timer (&xd_watchdog_int); xd_watchdog_int.function = xd_watchdog;
-
- err = -EBUSY;
- if (register_blkdev(XT_DISK_MAJOR, "xd"))
- goto out1;
-
- err = -ENOMEM;
- xd_queue = blk_init_queue(do_xd_request, &xd_lock);
- if (!xd_queue)
- goto out1a;
-
- if (xd_detect(&controller,&address)) {
-
- printk("Detected a%s controller (type %d) at address %06x\n",
- xd_sigs[controller].name,controller,address);
- if (!request_region(xd_iobase,4,"xd")) {
- printk("xd: Ports at 0x%x are not available\n",
- xd_iobase);
- goto out2;
- }
- if (controller)
- xd_sigs[controller].init_controller(address);
- xd_drives = xd_initdrives(xd_sigs[controller].init_drive);
-
- printk("Detected %d hard drive%s (using IRQ%d & DMA%d)\n",
- xd_drives,xd_drives == 1 ? "" : "s",xd_irq,xd_dma);
- }
-
- /*
- * With the drive detected, xd_maxsectors should now be known.
- * If xd_maxsectors is 0, nothing was detected and we fall through
- * to return -ENODEV
- */
- if (!xd_dma_buffer && xd_maxsectors) {
- xd_dma_buffer = (char *)xd_dma_mem_alloc(xd_maxsectors * 0x200);
- if (!xd_dma_buffer) {
- printk(KERN_ERR "xd: Out of memory.\n");
- goto out3;
- }
- }
-
- err = -ENODEV;
- if (!xd_drives)
- goto out3;
-
- for (i = 0; i < xd_drives; i++) {
- XD_INFO *p = &xd_info[i];
- struct gendisk *disk = alloc_disk(64);
- if (!disk)
- goto Enomem;
- p->unit = i;
- disk->major = XT_DISK_MAJOR;
- disk->first_minor = i<<6;
- sprintf(disk->disk_name, "xd%c", i+'a');
- disk->fops = &xd_fops;
- disk->private_data = p;
- disk->queue = xd_queue;
- set_capacity(disk, p->heads * p->cylinders * p->sectors);
- printk(" %s: CHS=%d/%d/%d\n", disk->disk_name,
- p->cylinders, p->heads, p->sectors);
- xd_gendisk[i] = disk;
- }
-
- err = -EBUSY;
- if (request_irq(xd_irq,xd_interrupt_handler, 0, "XT hard disk", NULL)) {
- printk("xd: unable to get IRQ%d\n",xd_irq);
- goto out4;
- }
-
- if (request_dma(xd_dma,"xd")) {
- printk("xd: unable to get DMA%d\n",xd_dma);
- goto out5;
- }
-
- /* xd_maxsectors depends on controller - so set after detection */
- blk_queue_max_hw_sectors(xd_queue, xd_maxsectors);
-
- for (i = 0; i < xd_drives; i++)
- add_disk(xd_gendisk[i]);
-
- return 0;
-
-out5:
- free_irq(xd_irq, NULL);
-out4:
- for (i = 0; i < xd_drives; i++)
- put_disk(xd_gendisk[i]);
-out3:
- if (xd_maxsectors)
- release_region(xd_iobase,4);
-
- if (xd_dma_buffer)
- xd_dma_mem_free((unsigned long)xd_dma_buffer,
- xd_maxsectors * 0x200);
-out2:
- blk_cleanup_queue(xd_queue);
-out1a:
- unregister_blkdev(XT_DISK_MAJOR, "xd");
-out1:
- return err;
-Enomem:
- err = -ENOMEM;
- while (i--)
- put_disk(xd_gendisk[i]);
- goto out3;
-}
-
-/* xd_detect: scan the possible BIOS ROM locations for the signature strings */
-static u_char __init xd_detect (u_char *controller, unsigned int *address)
-{
- int i, j;
-
- if (xd_override)
- {
- *controller = xd_type;
- *address = 0;
- return(1);
- }
-
- for (i = 0; i < ARRAY_SIZE(xd_bases); i++) {
- void __iomem *p = ioremap(xd_bases[i], 0x2000);
- if (!p)
- continue;
- for (j = 1; j < ARRAY_SIZE(xd_sigs); j++) {
- const char *s = xd_sigs[j].string;
- if (check_signature(p + xd_sigs[j].offset, s, strlen(s))) {
- *controller = j;
- xd_type = j;
- *address = xd_bases[i];
- iounmap(p);
- return 1;
- }
- }
- iounmap(p);
- }
- return 0;
-}
-
-/* do_xd_request: handle an incoming request */
-static void do_xd_request (struct request_queue * q)
-{
- struct request *req;
-
- if (xdc_busy)
- return;
-
- req = blk_fetch_request(q);
- while (req) {
- unsigned block = blk_rq_pos(req);
- unsigned count = blk_rq_cur_sectors(req);
- XD_INFO *disk = req->rq_disk->private_data;
- int res = -EIO;
- int retry;
-
- if (req->cmd_type != REQ_TYPE_FS)
- goto done;
- if (block + count > get_capacity(req->rq_disk))
- goto done;
- for (retry = 0; (retry < XD_RETRIES) && !res; retry++)
- res = xd_readwrite(rq_data_dir(req), disk, req->buffer,
- block, count);
- done:
- /* wrap up, 0 = success, -errno = fail */
- if (!__blk_end_request_cur(req, res))
- req = blk_fetch_request(q);
- }
-}
-
-static int xd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
-{
- XD_INFO *p = bdev->bd_disk->private_data;
-
- geo->heads = p->heads;
- geo->sectors = p->sectors;
- geo->cylinders = p->cylinders;
- return 0;
-}
-
-/* xd_ioctl: handle device ioctl's */
-static int xd_locked_ioctl(struct block_device *bdev, fmode_t mode, u_int cmd, u_long arg)
-{
- switch (cmd) {
- case HDIO_SET_DMA:
- if (!capable(CAP_SYS_ADMIN)) return -EACCES;
- if (xdc_busy) return -EBUSY;
- nodma = !arg;
- if (nodma && xd_dma_buffer) {
- xd_dma_mem_free((unsigned long)xd_dma_buffer,
- xd_maxsectors * 0x200);
- xd_dma_buffer = NULL;
- } else if (!nodma && !xd_dma_buffer) {
- xd_dma_buffer = (char *)xd_dma_mem_alloc(xd_maxsectors * 0x200);
- if (!xd_dma_buffer) {
- nodma = XD_DONT_USE_DMA;
- return -ENOMEM;
- }
- }
- return 0;
- case HDIO_GET_DMA:
- return put_user(!nodma, (long __user *) arg);
- case HDIO_GET_MULTCOUNT:
- return put_user(xd_maxsectors, (long __user *) arg);
- default:
- return -EINVAL;
- }
-}
-
-static int xd_ioctl(struct block_device *bdev, fmode_t mode,
- unsigned int cmd, unsigned long param)
-{
- int ret;
-
- mutex_lock(&xd_mutex);
- ret = xd_locked_ioctl(bdev, mode, cmd, param);
- mutex_unlock(&xd_mutex);
-
- return ret;
-}
-
-/* xd_readwrite: handle a read/write request */
-static int xd_readwrite (u_char operation,XD_INFO *p,char *buffer,u_int block,u_int count)
-{
- int drive = p->unit;
- u_char cmdblk[6],sense[4];
- u_short track,cylinder;
- u_char head,sector,control,mode = PIO_MODE,temp;
- char **real_buffer;
- register int i;
-
-#ifdef DEBUG_READWRITE
- printk("xd_readwrite: operation = %s, drive = %d, buffer = 0x%X, block = %d, count = %d\n",operation == READ ? "read" : "write",drive,buffer,block,count);
-#endif /* DEBUG_READWRITE */
-
- spin_unlock_irq(&xd_lock);
-
- control = p->control;
- if (!xd_dma_buffer)
- xd_dma_buffer = (char *)xd_dma_mem_alloc(xd_maxsectors * 0x200);
- while (count) {
- temp = count < xd_maxsectors ? count : xd_maxsectors;
-
- track = block / p->sectors;
- head = track % p->heads;
- cylinder = track / p->heads;
- sector = block % p->sectors;
-
-#ifdef DEBUG_READWRITE
- printk("xd_readwrite: drive = %d, head = %d, cylinder = %d, sector = %d, count = %d\n",drive,head,cylinder,sector,temp);
-#endif /* DEBUG_READWRITE */
-
- if (xd_dma_buffer) {
- mode = xd_setup_dma(operation == READ ? DMA_MODE_READ : DMA_MODE_WRITE,(u_char *)(xd_dma_buffer),temp * 0x200);
- real_buffer = &xd_dma_buffer;
- for (i=0; i < (temp * 0x200); i++)
- xd_dma_buffer[i] = buffer[i];
- }
- else
- real_buffer = &buffer;
-
- xd_build(cmdblk,operation == READ ? CMD_READ : CMD_WRITE,drive,head,cylinder,sector,temp & 0xFF,control);
-
- switch (xd_command(cmdblk,mode,(u_char *)(*real_buffer),(u_char *)(*real_buffer),sense,XD_TIMEOUT)) {
- case 1:
- printk("xd%c: %s timeout, recalibrating drive\n",'a'+drive,(operation == READ ? "read" : "write"));
- xd_recalibrate(drive);
- spin_lock_irq(&xd_lock);
- return -EIO;
- case 2:
- if (sense[0] & 0x30) {
- printk("xd%c: %s - ",'a'+drive,(operation == READ ? "reading" : "writing"));
- switch ((sense[0] & 0x30) >> 4) {
- case 0: printk("drive error, code = 0x%X",sense[0] & 0x0F);
- break;
- case 1: printk("controller error, code = 0x%X",sense[0] & 0x0F);
- break;
- case 2: printk("command error, code = 0x%X",sense[0] & 0x0F);
- break;
- case 3: printk("miscellaneous error, code = 0x%X",sense[0] & 0x0F);
- break;
- }
- }
- if (sense[0] & 0x80)
- printk(" - CHS = %d/%d/%d\n",((sense[2] & 0xC0) << 2) | sense[3],sense[1] & 0x1F,sense[2] & 0x3F);
- /* reported drive number = (sense[1] & 0xE0) >> 5 */
- else
- printk(" - no valid disk address\n");
- spin_lock_irq(&xd_lock);
- return -EIO;
- }
- if (xd_dma_buffer)
- for (i=0; i < (temp * 0x200); i++)
- buffer[i] = xd_dma_buffer[i];
-
- count -= temp, buffer += temp * 0x200, block += temp;
- }
- spin_lock_irq(&xd_lock);
- return 0;
-}
-
-/* xd_recalibrate: recalibrate a given drive and reset controller if necessary */
-static void xd_recalibrate (u_char drive)
-{
- u_char cmdblk[6];
-
- xd_build(cmdblk,CMD_RECALIBRATE,drive,0,0,0,0,0);
- if (xd_command(cmdblk,PIO_MODE,NULL,NULL,NULL,XD_TIMEOUT * 8))
- printk("xd%c: warning! error recalibrating, controller may be unstable\n", 'a'+drive);
-}
-
-/* xd_interrupt_handler: interrupt service routine */
-static irqreturn_t xd_interrupt_handler(int irq, void *dev_id)
-{
- if (inb(XD_STATUS) & STAT_INTERRUPT) { /* check if it was our device */
-#ifdef DEBUG_OTHER
- printk("xd_interrupt_handler: interrupt detected\n");
-#endif /* DEBUG_OTHER */
- outb(0,XD_CONTROL); /* acknowledge interrupt */
- wake_up(&xd_wait_int); /* and wake up sleeping processes */
- return IRQ_HANDLED;
- }
- else
- printk("xd: unexpected interrupt\n");
- return IRQ_NONE;
-}
-
-/* xd_setup_dma: set up the DMA controller for a data transfer */
-static u_char xd_setup_dma (u_char mode,u_char *buffer,u_int count)
-{
- unsigned long f;
-
- if (nodma)
- return (PIO_MODE);
- if (((unsigned long) buffer & 0xFFFF0000) != (((unsigned long) buffer + count) & 0xFFFF0000)) {
-#ifdef DEBUG_OTHER
- printk("xd_setup_dma: using PIO, transfer overlaps 64k boundary\n");
-#endif /* DEBUG_OTHER */
- return (PIO_MODE);
- }
-
- f=claim_dma_lock();
- disable_dma(xd_dma);
- clear_dma_ff(xd_dma);
- set_dma_mode(xd_dma,mode);
- set_dma_addr(xd_dma, (unsigned long) buffer);
- set_dma_count(xd_dma,count);
-
- release_dma_lock(f);
-
- return (DMA_MODE); /* use DMA and INT */
-}
-
-/* xd_build: put stuff into an array in a format suitable for the controller */
-static u_char *xd_build (u_char *cmdblk,u_char command,u_char drive,u_char head,u_short cylinder,u_char sector,u_char count,u_char control)
-{
- cmdblk[0] = command;
- cmdblk[1] = ((drive & 0x07) << 5) | (head & 0x1F);
- cmdblk[2] = ((cylinder & 0x300) >> 2) | (sector & 0x3F);
- cmdblk[3] = cylinder & 0xFF;
- cmdblk[4] = count;
- cmdblk[5] = control;
-
- return (cmdblk);
-}
-
-static void xd_watchdog (unsigned long unused)
-{
- xd_error = 1;
- wake_up(&xd_wait_int);
-}
-
-/* xd_waitport: waits until port & mask == flags or a timeout occurs. return 1 for a timeout */
-static inline u_char xd_waitport (u_short port,u_char flags,u_char mask,u_long timeout)
-{
- u_long expiry = jiffies + timeout;
- int success;
-
- xdc_busy = 1;
- while ((success = ((inb(port) & mask) != flags)) && time_before(jiffies, expiry))
- schedule_timeout_uninterruptible(1);
- xdc_busy = 0;
- return (success);
-}
-
-static inline u_int xd_wait_for_IRQ (void)
-{
- unsigned long flags;
- xd_watchdog_int.expires = jiffies + 8 * HZ;
- add_timer(&xd_watchdog_int);
-
- flags=claim_dma_lock();
- enable_dma(xd_dma);
- release_dma_lock(flags);
-
- sleep_on(&xd_wait_int);
- del_timer(&xd_watchdog_int);
- xdc_busy = 0;
-
- flags=claim_dma_lock();
- disable_dma(xd_dma);
- release_dma_lock(flags);
-
- if (xd_error) {
- printk("xd: missed IRQ - command aborted\n");
- xd_error = 0;
- return (1);
- }
- return (0);
-}
-
-/* xd_command: handle all data transfers necessary for a single command */
-static u_int xd_command (u_char *command,u_char mode,u_char *indata,u_char *outdata,u_char *sense,u_long timeout)
-{
- u_char cmdblk[6],csb,complete = 0;
-
-#ifdef DEBUG_COMMAND
- printk("xd_command: command = 0x%X, mode = 0x%X, indata = 0x%X, outdata = 0x%X, sense = 0x%X\n",command,mode,indata,outdata,sense);
-#endif /* DEBUG_COMMAND */
-
- outb(0,XD_SELECT);
- outb(mode,XD_CONTROL);
-
- if (xd_waitport(XD_STATUS,STAT_SELECT,STAT_SELECT,timeout))
- return (1);
-
- while (!complete) {
- if (xd_waitport(XD_STATUS,STAT_READY,STAT_READY,timeout))
- return (1);
-
- switch (inb(XD_STATUS) & (STAT_COMMAND | STAT_INPUT)) {
- case 0:
- if (mode == DMA_MODE) {
- if (xd_wait_for_IRQ())
- return (1);
- } else
- outb(outdata ? *outdata++ : 0,XD_DATA);
- break;
- case STAT_INPUT:
- if (mode == DMA_MODE) {
- if (xd_wait_for_IRQ())
- return (1);
- } else
- if (indata)
- *indata++ = inb(XD_DATA);
- else
- inb(XD_DATA);
- break;
- case STAT_COMMAND:
- outb(command ? *command++ : 0,XD_DATA);
- break;
- case STAT_COMMAND | STAT_INPUT:
- complete = 1;
- break;
- }
- }
- csb = inb(XD_DATA);
-
- if (xd_waitport(XD_STATUS,0,STAT_SELECT,timeout)) /* wait until deselected */
- return (1);
-
- if (csb & CSB_ERROR) { /* read sense data if error */
- xd_build(cmdblk,CMD_SENSE,(csb & CSB_LUN) >> 5,0,0,0,0,0);
- if (xd_command(cmdblk,0,sense,NULL,NULL,XD_TIMEOUT))
- printk("xd: warning! sense command failed!\n");
- }
-
-#ifdef DEBUG_COMMAND
- printk("xd_command: completed with csb = 0x%X\n",csb);
-#endif /* DEBUG_COMMAND */
-
- return (csb & CSB_ERROR);
-}
-
-static u_char __init xd_initdrives (void (*init_drive)(u_char drive))
-{
- u_char cmdblk[6],i,count = 0;
-
- for (i = 0; i < XD_MAXDRIVES; i++) {
- xd_build(cmdblk,CMD_TESTREADY,i,0,0,0,0,0);
- if (!xd_command(cmdblk,PIO_MODE,NULL,NULL,NULL,XD_TIMEOUT*8)) {
- msleep_interruptible(XD_INIT_DISK_DELAY);
-
- init_drive(count);
- count++;
-
- msleep_interruptible(XD_INIT_DISK_DELAY);
- }
- }
- return (count);
-}
-
-static void __init xd_manual_geo_set (u_char drive)
-{
- xd_info[drive].heads = (u_char)(xd_geo[3 * drive + 1]);
- xd_info[drive].cylinders = (u_short)(xd_geo[3 * drive]);
- xd_info[drive].sectors = (u_char)(xd_geo[3 * drive + 2]);
-}
-
-static void __init xd_dtc_init_controller (unsigned int address)
-{
- switch (address) {
- case 0x00000:
- case 0xC8000: break; /*initial: 0x320 */
- case 0xCA000: xd_iobase = 0x324;
- case 0xD0000: /*5150CX*/
- case 0xD8000: break; /*5150CX & 5150XL*/
- default: printk("xd_dtc_init_controller: unsupported BIOS address %06x\n",address);
- break;
- }
- xd_maxsectors = 0x01; /* my card seems to have trouble doing multi-block transfers? */
-
- outb(0,XD_RESET); /* reset the controller */
-}
-
-
-static void __init xd_dtc5150cx_init_drive (u_char drive)
-{
- /* values from controller's BIOS - BIOS chip may be removed */
- static u_short geometry_table[][4] = {
- {0x200,8,0x200,0x100},
- {0x267,2,0x267,0x267},
- {0x264,4,0x264,0x80},
- {0x132,4,0x132,0x0},
- {0x132,2,0x80, 0x132},
- {0x177,8,0x177,0x0},
- {0x132,8,0x84, 0x0},
- {}, /* not used */
- {0x132,6,0x80, 0x100},
- {0x200,6,0x100,0x100},
- {0x264,2,0x264,0x80},
- {0x280,4,0x280,0x100},
- {0x2B9,3,0x2B9,0x2B9},
- {0x2B9,5,0x2B9,0x2B9},
- {0x280,6,0x280,0x100},
- {0x132,4,0x132,0x0}};
- u_char n;
-
- n = inb(XD_JUMPER);
- n = (drive ? n : (n >> 2)) & 0x33;
- n = (n | (n >> 2)) & 0x0F;
- if (xd_geo[3*drive])
- xd_manual_geo_set(drive);
- else
- if (n != 7) {
- xd_info[drive].heads = (u_char)(geometry_table[n][1]); /* heads */
- xd_info[drive].cylinders = geometry_table[n][0]; /* cylinders */
- xd_info[drive].sectors = 17; /* sectors */
-#if 0
- xd_info[drive].rwrite = geometry_table[n][2]; /* reduced write */
- xd_info[drive].precomp = geometry_table[n][3] /* write precomp */
- xd_info[drive].ecc = 0x0B; /* ecc length */
-#endif /* 0 */
- }
- else {
- printk("xd%c: undetermined drive geometry\n",'a'+drive);
- return;
- }
- xd_info[drive].control = 5; /* control byte */
- xd_setparam(CMD_DTCSETPARAM,drive,xd_info[drive].heads,xd_info[drive].cylinders,geometry_table[n][2],geometry_table[n][3],0x0B);
- xd_recalibrate(drive);
-}
-
-static void __init xd_dtc_init_drive (u_char drive)
-{
- u_char cmdblk[6],buf[64];
-
- xd_build(cmdblk,CMD_DTCGETGEOM,drive,0,0,0,0,0);
- if (!xd_command(cmdblk,PIO_MODE,buf,NULL,NULL,XD_TIMEOUT * 2)) {
- xd_info[drive].heads = buf[0x0A]; /* heads */
- xd_info[drive].cylinders = ((u_short *) (buf))[0x04]; /* cylinders */
- xd_info[drive].sectors = 17; /* sectors */
- if (xd_geo[3*drive])
- xd_manual_geo_set(drive);
-#if 0
- xd_info[drive].rwrite = ((u_short *) (buf + 1))[0x05]; /* reduced write */
- xd_info[drive].precomp = ((u_short *) (buf + 1))[0x06]; /* write precomp */
- xd_info[drive].ecc = buf[0x0F]; /* ecc length */
-#endif /* 0 */
- xd_info[drive].control = 0; /* control byte */
-
- xd_setparam(CMD_DTCSETPARAM,drive,xd_info[drive].heads,xd_info[drive].cylinders,((u_short *) (buf + 1))[0x05],((u_short *) (buf + 1))[0x06],buf[0x0F]);
- xd_build(cmdblk,CMD_DTCSETSTEP,drive,0,0,0,0,7);
- if (xd_command(cmdblk,PIO_MODE,NULL,NULL,NULL,XD_TIMEOUT * 2))
- printk("xd_dtc_init_drive: error setting step rate for xd%c\n", 'a'+drive);
- }
- else
- printk("xd_dtc_init_drive: error reading geometry for xd%c\n", 'a'+drive);
-}
-
-static void __init xd_wd_init_controller (unsigned int address)
-{
- switch (address) {
- case 0x00000:
- case 0xC8000: break; /*initial: 0x320 */
- case 0xCA000: xd_iobase = 0x324; break;
- case 0xCC000: xd_iobase = 0x328; break;
- case 0xCE000: xd_iobase = 0x32C; break;
- case 0xD0000: xd_iobase = 0x328; break; /* ? */
- case 0xD8000: xd_iobase = 0x32C; break; /* ? */
- default: printk("xd_wd_init_controller: unsupported BIOS address %06x\n",address);
- break;
- }
- xd_maxsectors = 0x01; /* this one doesn't wrap properly either... */
-
- outb(0,XD_RESET); /* reset the controller */
-
- msleep(XD_INIT_DISK_DELAY);
-}
-
-static void __init xd_wd_init_drive (u_char drive)
-{
- /* values from controller's BIOS - BIOS may be disabled */
- static u_short geometry_table[][4] = {
- {0x264,4,0x1C2,0x1C2}, /* common part */
- {0x132,4,0x099,0x0},
- {0x267,2,0x1C2,0x1C2},
- {0x267,4,0x1C2,0x1C2},
-
- {0x334,6,0x335,0x335}, /* 1004 series RLL */
- {0x30E,4,0x30F,0x3DC},
- {0x30E,2,0x30F,0x30F},
- {0x267,4,0x268,0x268},
-
- {0x3D5,5,0x3D6,0x3D6}, /* 1002 series RLL */
- {0x3DB,7,0x3DC,0x3DC},
- {0x264,4,0x265,0x265},
- {0x267,4,0x268,0x268}};
-
- u_char cmdblk[6],buf[0x200];
- u_char n = 0,rll,jumper_state,use_jumper_geo;
- u_char wd_1002 = (xd_sigs[xd_type].string[7] == '6');
-
- jumper_state = ~(inb(0x322));
- if (jumper_state & 0x40)
- xd_irq = 9;
- rll = (jumper_state & 0x30) ? (0x04 << wd_1002) : 0;
- xd_build(cmdblk,CMD_READ,drive,0,0,0,1,0);
- if (!xd_command(cmdblk,PIO_MODE,buf,NULL,NULL,XD_TIMEOUT * 2)) {
- xd_info[drive].heads = buf[0x1AF]; /* heads */
- xd_info[drive].cylinders = ((u_short *) (buf + 1))[0xD6]; /* cylinders */
- xd_info[drive].sectors = 17; /* sectors */
- if (xd_geo[3*drive])
- xd_manual_geo_set(drive);
-#if 0
- xd_info[drive].rwrite = ((u_short *) (buf))[0xD8]; /* reduced write */
- xd_info[drive].wprecomp = ((u_short *) (buf))[0xDA]; /* write precomp */
- xd_info[drive].ecc = buf[0x1B4]; /* ecc length */
-#endif /* 0 */
- xd_info[drive].control = buf[0x1B5]; /* control byte */
- use_jumper_geo = !(xd_info[drive].heads) || !(xd_info[drive].cylinders);
- if (xd_geo[3*drive]) {
- xd_manual_geo_set(drive);
- xd_info[drive].control = rll ? 7 : 5;
- }
- else if (use_jumper_geo) {
- n = (((jumper_state & 0x0F) >> (drive << 1)) & 0x03) | rll;
- xd_info[drive].cylinders = geometry_table[n][0];
- xd_info[drive].heads = (u_char)(geometry_table[n][1]);
- xd_info[drive].control = rll ? 7 : 5;
-#if 0
- xd_info[drive].rwrite = geometry_table[n][2];
- xd_info[drive].wprecomp = geometry_table[n][3];
- xd_info[drive].ecc = 0x0B;
-#endif /* 0 */
- }
- if (!wd_1002) {
- if (use_jumper_geo)
- xd_setparam(CMD_WDSETPARAM,drive,xd_info[drive].heads,xd_info[drive].cylinders,
- geometry_table[n][2],geometry_table[n][3],0x0B);
- else
- xd_setparam(CMD_WDSETPARAM,drive,xd_info[drive].heads,xd_info[drive].cylinders,
- ((u_short *) (buf))[0xD8],((u_short *) (buf))[0xDA],buf[0x1B4]);
- }
- /* 1002 based RLL controller requests converted addressing, but reports physical
- (physical 26 sec., logical 17 sec.)
- 1004 based ???? */
- if (rll & wd_1002) {
- if ((xd_info[drive].cylinders *= 26,
- xd_info[drive].cylinders /= 17) > 1023)
- xd_info[drive].cylinders = 1023; /* 1024 ? */
-#if 0
- xd_info[drive].rwrite *= 26;
- xd_info[drive].rwrite /= 17;
- xd_info[drive].wprecomp *= 26
- xd_info[drive].wprecomp /= 17;
-#endif /* 0 */
- }
- }
- else
- printk("xd_wd_init_drive: error reading geometry for xd%c\n",'a'+drive);
-
-}
-
-static void __init xd_seagate_init_controller (unsigned int address)
-{
- switch (address) {
- case 0x00000:
- case 0xC8000: break; /*initial: 0x320 */
- case 0xD0000: xd_iobase = 0x324; break;
- case 0xD8000: xd_iobase = 0x328; break;
- case 0xE0000: xd_iobase = 0x32C; break;
- default: printk("xd_seagate_init_controller: unsupported BIOS address %06x\n",address);
- break;
- }
- xd_maxsectors = 0x40;
-
- outb(0,XD_RESET); /* reset the controller */
-}
-
-static void __init xd_seagate_init_drive (u_char drive)
-{
- u_char cmdblk[6],buf[0x200];
-
- xd_build(cmdblk,CMD_ST11GETGEOM,drive,0,0,0,1,0);
- if (!xd_command(cmdblk,PIO_MODE,buf,NULL,NULL,XD_TIMEOUT * 2)) {
- xd_info[drive].heads = buf[0x04]; /* heads */
- xd_info[drive].cylinders = (buf[0x02] << 8) | buf[0x03]; /* cylinders */
- xd_info[drive].sectors = buf[0x05]; /* sectors */
- xd_info[drive].control = 0; /* control byte */
- }
- else
- printk("xd_seagate_init_drive: error reading geometry from xd%c\n", 'a'+drive);
-}
-
-/* Omti support courtesy Dirk Melchers */
-static void __init xd_omti_init_controller (unsigned int address)
-{
- switch (address) {
- case 0x00000:
- case 0xC8000: break; /*initial: 0x320 */
- case 0xD0000: xd_iobase = 0x324; break;
- case 0xD8000: xd_iobase = 0x328; break;
- case 0xE0000: xd_iobase = 0x32C; break;
- default: printk("xd_omti_init_controller: unsupported BIOS address %06x\n",address);
- break;
- }
-
- xd_maxsectors = 0x40;
-
- outb(0,XD_RESET); /* reset the controller */
-}
-
-static void __init xd_omti_init_drive (u_char drive)
-{
- /* gets infos from drive */
- xd_override_init_drive(drive);
-
- /* set other parameters, Hardcoded, not that nice :-) */
- xd_info[drive].control = 2;
-}
-
-/* Xebec support (AK) */
-static void __init xd_xebec_init_controller (unsigned int address)
-{
-/* iobase may be set manually in range 0x300 - 0x33C
- irq may be set manually to 2(9),3,4,5,6,7
- dma may be set manually to 1,2,3
- (How to detect them ???)
-BIOS address may be set manually in range 0x0 - 0xF8000
-If you need non-standard settings use the xd=... command */
-
- switch (address) {
- case 0x00000:
- case 0xC8000: /* initially: xd_iobase==0x320 */
- case 0xD0000:
- case 0xD2000:
- case 0xD4000:
- case 0xD6000:
- case 0xD8000:
- case 0xDA000:
- case 0xDC000:
- case 0xDE000:
- case 0xE0000: break;
- default: printk("xd_xebec_init_controller: unsupported BIOS address %06x\n",address);
- break;
- }
-
- xd_maxsectors = 0x01;
- outb(0,XD_RESET); /* reset the controller */
-
- msleep(XD_INIT_DISK_DELAY);
-}
-
-static void __init xd_xebec_init_drive (u_char drive)
-{
- /* values from controller's BIOS - BIOS chip may be removed */
- static u_short geometry_table[][5] = {
- {0x132,4,0x080,0x080,0x7},
- {0x132,4,0x080,0x080,0x17},
- {0x264,2,0x100,0x100,0x7},
- {0x264,2,0x100,0x100,0x17},
- {0x132,8,0x080,0x080,0x7},
- {0x132,8,0x080,0x080,0x17},
- {0x264,4,0x100,0x100,0x6},
- {0x264,4,0x100,0x100,0x17},
- {0x2BC,5,0x2BC,0x12C,0x6},
- {0x3A5,4,0x3A5,0x3A5,0x7},
- {0x26C,6,0x26C,0x26C,0x7},
- {0x200,8,0x200,0x100,0x17},
- {0x400,5,0x400,0x400,0x7},
- {0x400,6,0x400,0x400,0x7},
- {0x264,8,0x264,0x200,0x17},
- {0x33E,7,0x33E,0x200,0x7}};
- u_char n;
-
- n = inb(XD_JUMPER) & 0x0F; /* BIOS's drive number: same geometry
- is assumed for BOTH drives */
- if (xd_geo[3*drive])
- xd_manual_geo_set(drive);
- else {
- xd_info[drive].heads = (u_char)(geometry_table[n][1]); /* heads */
- xd_info[drive].cylinders = geometry_table[n][0]; /* cylinders */
- xd_info[drive].sectors = 17; /* sectors */
-#if 0
- xd_info[drive].rwrite = geometry_table[n][2]; /* reduced write */
- xd_info[drive].precomp = geometry_table[n][3] /* write precomp */
- xd_info[drive].ecc = 0x0B; /* ecc length */
-#endif /* 0 */
- }
- xd_info[drive].control = geometry_table[n][4]; /* control byte */
- xd_setparam(CMD_XBSETPARAM,drive,xd_info[drive].heads,xd_info[drive].cylinders,geometry_table[n][2],geometry_table[n][3],0x0B);
- xd_recalibrate(drive);
-}
-
-/* xd_override_init_drive: this finds disk geometry in a "binary search" style, narrowing in on the "correct" number of heads
- etc. by trying values until it gets the highest successful value. Idea courtesy Salvador Abreu (spa@fct.unl.pt). */
-static void __init xd_override_init_drive (u_char drive)
-{
- u_short min[] = { 0,0,0 },max[] = { 16,1024,64 },test[] = { 0,0,0 };
- u_char cmdblk[6],i;
-
- if (xd_geo[3*drive])
- xd_manual_geo_set(drive);
- else {
- for (i = 0; i < 3; i++) {
- while (min[i] != max[i] - 1) {
- test[i] = (min[i] + max[i]) / 2;
- xd_build(cmdblk,CMD_SEEK,drive,(u_char) test[0],(u_short) test[1],(u_char) test[2],0,0);
- if (!xd_command(cmdblk,PIO_MODE,NULL,NULL,NULL,XD_TIMEOUT * 2))
- min[i] = test[i];
- else
- max[i] = test[i];
- }
- test[i] = min[i];
- }
- xd_info[drive].heads = (u_char) min[0] + 1;
- xd_info[drive].cylinders = (u_short) min[1] + 1;
- xd_info[drive].sectors = (u_char) min[2] + 1;
- }
- xd_info[drive].control = 0;
-}
-
-/* xd_setup: initialise controller from command line parameters */
-static void __init do_xd_setup (int *integers)
-{
- switch (integers[0]) {
- case 4: if (integers[4] < 0)
- nodma = 1;
- else if (integers[4] < 8)
- xd_dma = integers[4];
- case 3: if ((integers[3] > 0) && (integers[3] <= 0x3FC))
- xd_iobase = integers[3];
- case 2: if ((integers[2] > 0) && (integers[2] < 16))
- xd_irq = integers[2];
- case 1: xd_override = 1;
- if ((integers[1] >= 0) && (integers[1] < ARRAY_SIZE(xd_sigs)))
- xd_type = integers[1];
- case 0: break;
- default:printk("xd: too many parameters for xd\n");
- }
- xd_maxsectors = 0x01;
-}
-
-/* xd_setparam: set the drive characteristics */
-static void __init xd_setparam (u_char command,u_char drive,u_char heads,u_short cylinders,u_short rwrite,u_short wprecomp,u_char ecc)
-{
- u_char cmdblk[14];
-
- xd_build(cmdblk,command,drive,0,0,0,0,0);
- cmdblk[6] = (u_char) (cylinders >> 8) & 0x03;
- cmdblk[7] = (u_char) (cylinders & 0xFF);
- cmdblk[8] = heads & 0x1F;
- cmdblk[9] = (u_char) (rwrite >> 8) & 0x03;
- cmdblk[10] = (u_char) (rwrite & 0xFF);
- cmdblk[11] = (u_char) (wprecomp >> 8) & 0x03;
- cmdblk[12] = (u_char) (wprecomp & 0xFF);
- cmdblk[13] = ecc;
-
- /* Some controllers require geometry info as data, not command */
-
- if (xd_command(cmdblk,PIO_MODE,NULL,&cmdblk[6],NULL,XD_TIMEOUT * 2))
- printk("xd: error setting characteristics for xd%c\n", 'a'+drive);
-}
-
-
-#ifdef MODULE
-
-module_param_array(xd, int, NULL, 0);
-module_param_array(xd_geo, int, NULL, 0);
-module_param(nodma, bool, 0);
-
-MODULE_LICENSE("GPL");
-
-void cleanup_module(void)
-{
- int i;
- unregister_blkdev(XT_DISK_MAJOR, "xd");
- for (i = 0; i < xd_drives; i++) {
- del_gendisk(xd_gendisk[i]);
- put_disk(xd_gendisk[i]);
- }
- blk_cleanup_queue(xd_queue);
- release_region(xd_iobase,4);
- if (xd_drives) {
- free_irq(xd_irq, NULL);
- free_dma(xd_dma);
- if (xd_dma_buffer)
- xd_dma_mem_free((unsigned long)xd_dma_buffer, xd_maxsectors * 0x200);
- }
-}
-#else
-
-static int __init xd_setup (char *str)
-{
- int ints[5];
- get_options (str, ARRAY_SIZE (ints), ints);
- do_xd_setup (ints);
- return 1;
-}
-
-/* xd_manual_geo_init: initialise drive geometry from command line parameters
- (used only for WD drives) */
-static int __init xd_manual_geo_init (char *str)
-{
- int i, integers[1 + 3*XD_MAXDRIVES];
-
- get_options (str, ARRAY_SIZE (integers), integers);
- if (integers[0]%3 != 0) {
- printk("xd: incorrect number of parameters for xd_geo\n");
- return 1;
- }
- for (i = 0; (i < integers[0]) && (i < 3*XD_MAXDRIVES); i++)
- xd_geo[i] = integers[i+1];
- return 1;
-}
-
-__setup ("xd=", xd_setup);
-__setup ("xd_geo=", xd_manual_geo_init);
-
-#endif /* MODULE */
-
-module_init(xd_init);
-MODULE_ALIAS_BLOCKDEV_MAJOR(XT_DISK_MAJOR);
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff