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Diffstat (limited to 'drivers/scsi/eata_pio.c')
-rw-r--r--drivers/scsi/eata_pio.c966
1 files changed, 0 insertions, 966 deletions
diff --git a/drivers/scsi/eata_pio.c b/drivers/scsi/eata_pio.c
deleted file mode 100644
index 4299fa485622..000000000000
--- a/drivers/scsi/eata_pio.c
+++ /dev/null
@@ -1,966 +0,0 @@
-/************************************************************
- * *
- * Linux EATA SCSI PIO driver *
- * *
- * based on the CAM document CAM/89-004 rev. 2.0c, *
- * DPT's driver kit, some internal documents and source, *
- * and several other Linux scsi drivers and kernel docs. *
- * *
- * The driver currently: *
- * -supports all EATA-PIO boards *
- * -only supports DASD devices *
- * *
- * (c)1993-96 Michael Neuffer, Alfred Arnold *
- * neuffer@goofy.zdv.uni-mainz.de *
- * a.arnold@kfa-juelich.de *
- * *
- * Updated 2002 by Alan Cox <alan@lxorguk.ukuu.org.uk> for *
- * Linux 2.5.x and the newer locking and error handling *
- * *
- * 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 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be *
- * useful, but WITHOUT ANY WARRANTY; without even the *
- * implied warranty of MERCHANTABILITY or FITNESS FOR A *
- * PARTICULAR PURPOSE. See the GNU General Public License *
- * for more details. *
- * *
- * You should have received a copy of the GNU General *
- * Public License along with this kernel; if not, write to *
- * the Free Software Foundation, Inc., 675 Mass Ave, *
- * Cambridge, MA 02139, USA. *
- * *
- * For the avoidance of doubt the "preferred form" of this *
- * code is one which is in an open non patent encumbered *
- * format. Where cryptographic key signing forms part of *
- * the process of creating an executable the information *
- * including keys needed to generate an equivalently *
- * functional executable are deemed to be part of the *
- * source code are deemed to be part of the source code. *
- * *
- ************************************************************
- * last change: 2002/11/02 OS: Linux 2.5.45 *
- ************************************************************/
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/ioport.h>
-#include <linux/in.h>
-#include <linux/pci.h>
-#include <linux/proc_fs.h>
-#include <linux/interrupt.h>
-#include <linux/blkdev.h>
-#include <linux/spinlock.h>
-#include <linux/delay.h>
-
-#include <asm/io.h>
-
-#include <scsi/scsi.h>
-#include <scsi/scsi_cmnd.h>
-#include <scsi/scsi_device.h>
-#include <scsi/scsi_host.h>
-
-#include "eata_generic.h"
-#include "eata_pio.h"
-
-
-static unsigned int ISAbases[MAXISA] = {
- 0x1F0, 0x170, 0x330, 0x230
-};
-
-static unsigned int ISAirqs[MAXISA] = {
- 14, 12, 15, 11
-};
-
-static unsigned char EISAbases[] = {
- 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1
-};
-
-static unsigned int registered_HBAs;
-static struct Scsi_Host *last_HBA;
-static struct Scsi_Host *first_HBA;
-static unsigned char reg_IRQ[16];
-static unsigned char reg_IRQL[16];
-static unsigned long int_counter;
-static unsigned long queue_counter;
-
-static struct scsi_host_template driver_template;
-
-static int eata_pio_show_info(struct seq_file *m, struct Scsi_Host *shost)
-{
- seq_printf(m, "EATA (Extended Attachment) PIO driver version: "
- "%d.%d%s\n",VER_MAJOR, VER_MINOR, VER_SUB);
- seq_printf(m, "queued commands: %10ld\n"
- "processed interrupts:%10ld\n", queue_counter, int_counter);
- seq_printf(m, "\nscsi%-2d: HBA %.10s\n",
- shost->host_no, SD(shost)->name);
- seq_printf(m, "Firmware revision: v%s\n",
- SD(shost)->revision);
- seq_puts(m, "IO: PIO\n");
- seq_printf(m, "Base IO : %#.4x\n", (u32) shost->base);
- seq_printf(m, "Host Bus: %s\n",
- (SD(shost)->bustype == 'P')?"PCI ":
- (SD(shost)->bustype == 'E')?"EISA":"ISA ");
- return 0;
-}
-
-static int eata_pio_release(struct Scsi_Host *sh)
-{
- hostdata *hd = SD(sh);
- if (sh->irq && reg_IRQ[sh->irq] == 1)
- free_irq(sh->irq, NULL);
- else
- reg_IRQ[sh->irq]--;
- if (SD(sh)->channel == 0) {
- if (sh->io_port && sh->n_io_port)
- release_region(sh->io_port, sh->n_io_port);
- }
- /* At this point the PCI reference can go */
- if (hd->pdev)
- pci_dev_put(hd->pdev);
- return 1;
-}
-
-static void IncStat(struct scsi_pointer *SCp, unsigned int Increment)
-{
- SCp->ptr += Increment;
- if ((SCp->this_residual -= Increment) == 0) {
- if ((--SCp->buffers_residual) == 0)
- SCp->Status = 0;
- else {
- SCp->buffer++;
- SCp->ptr = sg_virt(SCp->buffer);
- SCp->this_residual = SCp->buffer->length;
- }
- }
-}
-
-static irqreturn_t eata_pio_int_handler(int irq, void *dev_id);
-
-static irqreturn_t do_eata_pio_int_handler(int irq, void *dev_id)
-{
- unsigned long flags;
- struct Scsi_Host *dev = dev_id;
- irqreturn_t ret;
-
- spin_lock_irqsave(dev->host_lock, flags);
- ret = eata_pio_int_handler(irq, dev_id);
- spin_unlock_irqrestore(dev->host_lock, flags);
- return ret;
-}
-
-static irqreturn_t eata_pio_int_handler(int irq, void *dev_id)
-{
- unsigned int eata_stat = 0xfffff;
- struct scsi_cmnd *cmd;
- hostdata *hd;
- struct eata_ccb *cp;
- unsigned long base;
- unsigned int x, z;
- struct Scsi_Host *sh;
- unsigned short zwickel = 0;
- unsigned char stat, odd;
- irqreturn_t ret = IRQ_NONE;
-
- for (x = 1, sh = first_HBA; x <= registered_HBAs; x++, sh = SD(sh)->prev)
- {
- if (sh->irq != irq)
- continue;
- if (inb(sh->base + HA_RSTATUS) & HA_SBUSY)
- continue;
-
- int_counter++;
- ret = IRQ_HANDLED;
-
- hd = SD(sh);
-
- cp = &hd->ccb[0];
- cmd = cp->cmd;
- base = cmd->device->host->base;
-
- do {
- stat = inb(base + HA_RSTATUS);
- if (stat & HA_SDRQ) {
- if (cp->DataIn) {
- z = 256;
- odd = 0;
- while ((cmd->SCp.Status) && ((z > 0) || (odd))) {
- if (odd) {
- *(cmd->SCp.ptr) = zwickel >> 8;
- IncStat(&cmd->SCp, 1);
- odd = 0;
- }
- x = min_t(unsigned int, z, cmd->SCp.this_residual / 2);
- insw(base + HA_RDATA, cmd->SCp.ptr, x);
- z -= x;
- IncStat(&cmd->SCp, 2 * x);
- if ((z > 0) && (cmd->SCp.this_residual == 1)) {
- zwickel = inw(base + HA_RDATA);
- *(cmd->SCp.ptr) = zwickel & 0xff;
- IncStat(&cmd->SCp, 1);
- z--;
- odd = 1;
- }
- }
- while (z > 0) {
- zwickel = inw(base + HA_RDATA);
- z--;
- }
- } else { /* cp->DataOut */
-
- odd = 0;
- z = 256;
- while ((cmd->SCp.Status) && ((z > 0) || (odd))) {
- if (odd) {
- zwickel += *(cmd->SCp.ptr) << 8;
- IncStat(&cmd->SCp, 1);
- outw(zwickel, base + HA_RDATA);
- z--;
- odd = 0;
- }
- x = min_t(unsigned int, z, cmd->SCp.this_residual / 2);
- outsw(base + HA_RDATA, cmd->SCp.ptr, x);
- z -= x;
- IncStat(&cmd->SCp, 2 * x);
- if ((z > 0) && (cmd->SCp.this_residual == 1)) {
- zwickel = *(cmd->SCp.ptr);
- zwickel &= 0xff;
- IncStat(&cmd->SCp, 1);
- odd = 1;
- }
- }
- while (z > 0 || odd) {
- outw(zwickel, base + HA_RDATA);
- z--;
- odd = 0;
- }
- }
- }
- }
- while ((stat & HA_SDRQ) || ((stat & HA_SMORE) && hd->moresupport));
-
- /* terminate handler if HBA goes busy again, i.e. transfers
- * more data */
-
- if (stat & HA_SBUSY)
- break;
-
- /* OK, this is quite stupid, but I haven't found any correct
- * way to get HBA&SCSI status so far */
-
- if (!(inb(base + HA_RSTATUS) & HA_SERROR)) {
- cmd->result = (DID_OK << 16);
- hd->devflags |= (1 << cp->cp_id);
- } else if (hd->devflags & (1 << cp->cp_id))
- cmd->result = (DID_OK << 16) + 0x02;
- else
- cmd->result = (DID_NO_CONNECT << 16);
-
- if (cp->status == LOCKED) {
- cp->status = FREE;
- eata_stat = inb(base + HA_RSTATUS);
- printk(KERN_CRIT "eata_pio: int_handler, freeing locked " "queueslot\n");
- return ret;
- }
-#if DBG_INTR2
- if (stat != 0x50)
- printk(KERN_DEBUG "stat: %#.2x, result: %#.8x\n", stat, cmd->result);
-#endif
-
- cp->status = FREE; /* now we can release the slot */
-
- cmd->scsi_done(cmd);
- }
-
- return ret;
-}
-
-static inline unsigned int eata_pio_send_command(unsigned long base, unsigned char command)
-{
- unsigned int loop = 50;
-
- while (inb(base + HA_RSTATUS) & HA_SBUSY)
- if (--loop == 0)
- return 1;
-
- /* Enable interrupts for HBA. It is not the best way to do it at this
- * place, but I hope that it doesn't interfere with the IDE driver
- * initialization this way */
-
- outb(HA_CTRL_8HEADS, base + HA_CTRLREG);
-
- outb(command, base + HA_WCOMMAND);
- return 0;
-}
-
-static int eata_pio_queue_lck(struct scsi_cmnd *cmd,
- void (*done)(struct scsi_cmnd *))
-{
- unsigned int x, y;
- unsigned long base;
-
- hostdata *hd;
- struct Scsi_Host *sh;
- struct eata_ccb *cp;
-
- queue_counter++;
-
- hd = HD(cmd);
- sh = cmd->device->host;
- base = sh->base;
-
- /* use only slot 0, as 2001 can handle only one cmd at a time */
-
- y = x = 0;
-
- if (hd->ccb[y].status != FREE) {
-
- DBG(DBG_QUEUE, printk(KERN_EMERG "can_queue %d, x %d, y %d\n", sh->can_queue, x, y));
-#if DEBUG_EATA
- panic(KERN_EMERG "eata_pio: run out of queue slots cmdno:%ld " "intrno: %ld\n", queue_counter, int_counter);
-#else
- panic(KERN_EMERG "eata_pio: run out of queue slots....\n");
-#endif
- }
-
- cp = &hd->ccb[y];
-
- memset(cp, 0, sizeof(struct eata_ccb));
-
- cp->status = USED; /* claim free slot */
-
- DBG(DBG_QUEUE, scmd_printk(KERN_DEBUG, cmd,
- "eata_pio_queue 0x%p, y %d\n", cmd, y));
-
- cmd->scsi_done = (void *) done;
-
- if (cmd->sc_data_direction == DMA_TO_DEVICE)
- cp->DataOut = 1; /* Output mode */
- else
- cp->DataIn = 0; /* Input mode */
-
- cp->Interpret = (cmd->device->id == hd->hostid);
- cp->cp_datalen = cpu_to_be32(scsi_bufflen(cmd));
- cp->Auto_Req_Sen = 0;
- cp->cp_reqDMA = 0;
- cp->reqlen = 0;
-
- cp->cp_id = cmd->device->id;
- cp->cp_lun = cmd->device->lun;
- cp->cp_dispri = 0;
- cp->cp_identify = 1;
- memcpy(cp->cp_cdb, cmd->cmnd, COMMAND_SIZE(*cmd->cmnd));
-
- cp->cp_statDMA = 0;
-
- cp->cp_viraddr = cp;
- cp->cmd = cmd;
- cmd->host_scribble = (char *) &hd->ccb[y];
-
- if (!scsi_bufflen(cmd)) {
- cmd->SCp.buffers_residual = 1;
- cmd->SCp.ptr = NULL;
- cmd->SCp.this_residual = 0;
- cmd->SCp.buffer = NULL;
- } else {
- cmd->SCp.buffer = scsi_sglist(cmd);
- cmd->SCp.buffers_residual = scsi_sg_count(cmd);
- cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
- cmd->SCp.this_residual = cmd->SCp.buffer->length;
- }
- cmd->SCp.Status = (cmd->SCp.this_residual != 0); /* TRUE as long as bytes
- * are to transfer */
-
- if (eata_pio_send_command(base, EATA_CMD_PIO_SEND_CP)) {
- cmd->result = DID_BUS_BUSY << 16;
- scmd_printk(KERN_NOTICE, cmd,
- "eata_pio_queue pid 0x%p, HBA busy, "
- "returning DID_BUS_BUSY, done.\n", cmd);
- done(cmd);
- cp->status = FREE;
- return 0;
- }
- /* FIXME: timeout */
- while (!(inb(base + HA_RSTATUS) & HA_SDRQ))
- cpu_relax();
- outsw(base + HA_RDATA, cp, hd->cplen);
- outb(EATA_CMD_PIO_TRUNC, base + HA_WCOMMAND);
- for (x = 0; x < hd->cppadlen; x++)
- outw(0, base + HA_RDATA);
-
- DBG(DBG_QUEUE, scmd_printk(KERN_DEBUG, cmd,
- "Queued base %#.4lx cmd: 0x%p "
- "slot %d irq %d\n", sh->base, cmd, y, sh->irq));
-
- return 0;
-}
-
-static DEF_SCSI_QCMD(eata_pio_queue)
-
-static int eata_pio_abort(struct scsi_cmnd *cmd)
-{
- unsigned int loop = 100;
-
- DBG(DBG_ABNORM, scmd_printk(KERN_WARNING, cmd,
- "eata_pio_abort called pid: 0x%p\n", cmd));
-
- while (inb(cmd->device->host->base + HA_RAUXSTAT) & HA_ABUSY)
- if (--loop == 0) {
- printk(KERN_WARNING "eata_pio: abort, timeout error.\n");
- return FAILED;
- }
- if (CD(cmd)->status == FREE) {
- DBG(DBG_ABNORM, printk(KERN_WARNING "Returning: SCSI_ABORT_NOT_RUNNING\n"));
- return FAILED;
- }
- if (CD(cmd)->status == USED) {
- DBG(DBG_ABNORM, printk(KERN_WARNING "Returning: SCSI_ABORT_BUSY\n"));
- /* We want to sleep a bit more here */
- return FAILED; /* SNOOZE */
- }
- if (CD(cmd)->status == RESET) {
- printk(KERN_WARNING "eata_pio: abort, command reset error.\n");
- return FAILED;
- }
- if (CD(cmd)->status == LOCKED) {
- DBG(DBG_ABNORM, printk(KERN_WARNING "eata_pio: abort, queue slot " "locked.\n"));
- return FAILED;
- }
- panic("eata_pio: abort: invalid slot status\n");
-}
-
-static int eata_pio_host_reset(struct scsi_cmnd *cmd)
-{
- unsigned int x, limit = 0;
- unsigned char success = 0;
- struct scsi_cmnd *sp;
- struct Scsi_Host *host = cmd->device->host;
-
- DBG(DBG_ABNORM, scmd_printk(KERN_WARNING, cmd,
- "eata_pio_reset called\n"));
-
- spin_lock_irq(host->host_lock);
-
- if (HD(cmd)->state == RESET) {
- printk(KERN_WARNING "eata_pio_reset: exit, already in reset.\n");
- spin_unlock_irq(host->host_lock);
- return FAILED;
- }
-
- /* force all slots to be free */
-
- for (x = 0; x < cmd->device->host->can_queue; x++) {
-
- if (HD(cmd)->ccb[x].status == FREE)
- continue;
-
- sp = HD(cmd)->ccb[x].cmd;
- HD(cmd)->ccb[x].status = RESET;
- printk(KERN_WARNING "eata_pio_reset: slot %d in reset.\n", x);
-
- if (sp == NULL)
- panic("eata_pio_reset: slot %d, sp==NULL.\n", x);
- }
-
- /* hard reset the HBA */
- outb(EATA_CMD_RESET, cmd->device->host->base + HA_WCOMMAND);
-
- DBG(DBG_ABNORM, printk(KERN_WARNING "eata_pio_reset: board reset done.\n"));
- HD(cmd)->state = RESET;
-
- spin_unlock_irq(host->host_lock);
- msleep(3000);
- spin_lock_irq(host->host_lock);
-
- DBG(DBG_ABNORM, printk(KERN_WARNING "eata_pio_reset: interrupts disabled, " "loops %d.\n", limit));
-
- for (x = 0; x < cmd->device->host->can_queue; x++) {
-
- /* Skip slots already set free by interrupt */
- if (HD(cmd)->ccb[x].status != RESET)
- continue;
-
- sp = HD(cmd)->ccb[x].cmd;
- sp->result = DID_RESET << 16;
-
- /* This mailbox is terminated */
- printk(KERN_WARNING "eata_pio_reset: reset ccb %d.\n", x);
- HD(cmd)->ccb[x].status = FREE;
-
- sp->scsi_done(sp);
- }
-
- HD(cmd)->state = 0;
-
- spin_unlock_irq(host->host_lock);
-
- if (success) { /* hmmm... */
- DBG(DBG_ABNORM, printk(KERN_WARNING "eata_pio_reset: exit, success.\n"));
- return SUCCESS;
- } else {
- DBG(DBG_ABNORM, printk(KERN_WARNING "eata_pio_reset: exit, wakeup.\n"));
- return FAILED;
- }
-}
-
-static char *get_pio_board_data(unsigned long base, unsigned int irq, unsigned int id, unsigned long cplen, unsigned short cppadlen)
-{
- struct eata_ccb cp;
- static char buff[256];
- int z;
-
- memset(&cp, 0, sizeof(struct eata_ccb));
- memset(buff, 0, sizeof(buff));
-
- cp.DataIn = 1;
- cp.Interpret = 1; /* Interpret command */
-
- cp.cp_datalen = cpu_to_be32(254);
- cp.cp_dataDMA = cpu_to_be32(0);
-
- cp.cp_id = id;
- cp.cp_lun = 0;
-
- cp.cp_cdb[0] = INQUIRY;
- cp.cp_cdb[1] = 0;
- cp.cp_cdb[2] = 0;
- cp.cp_cdb[3] = 0;
- cp.cp_cdb[4] = 254;
- cp.cp_cdb[5] = 0;
-
- if (eata_pio_send_command(base, EATA_CMD_PIO_SEND_CP))
- return NULL;
-
- while (!(inb(base + HA_RSTATUS) & HA_SDRQ))
- cpu_relax();
-
- outsw(base + HA_RDATA, &cp, cplen);
- outb(EATA_CMD_PIO_TRUNC, base + HA_WCOMMAND);
- for (z = 0; z < cppadlen; z++)
- outw(0, base + HA_RDATA);
-
- while (inb(base + HA_RSTATUS) & HA_SBUSY)
- cpu_relax();
-
- if (inb(base + HA_RSTATUS) & HA_SERROR)
- return NULL;
- else if (!(inb(base + HA_RSTATUS) & HA_SDRQ))
- return NULL;
- else {
- insw(base + HA_RDATA, &buff, 127);
- while (inb(base + HA_RSTATUS) & HA_SDRQ)
- inw(base + HA_RDATA);
- return buff;
- }
-}
-
-static int get_pio_conf_PIO(unsigned long base, struct get_conf *buf)
-{
- unsigned long loop = HZ / 2;
- int z;
- unsigned short *p;
-
- if (!request_region(base, 9, "eata_pio"))
- return 0;
-
- memset(buf, 0, sizeof(struct get_conf));
-
- while (inb(base + HA_RSTATUS) & HA_SBUSY)
- if (--loop == 0)
- goto fail;
-
- DBG(DBG_PIO && DBG_PROBE, printk(KERN_DEBUG "Issuing PIO READ CONFIG to HBA at %#lx\n", base));
- eata_pio_send_command(base, EATA_CMD_PIO_READ_CONFIG);
-
- loop = 50;
- for (p = (unsigned short *) buf; (long) p <= ((long) buf + (sizeof(struct get_conf) / 2)); p++) {
- while (!(inb(base + HA_RSTATUS) & HA_SDRQ))
- if (--loop == 0)
- goto fail;
-
- loop = 50;
- *p = inw(base + HA_RDATA);
- }
- if (inb(base + HA_RSTATUS) & HA_SERROR) {
- DBG(DBG_PROBE, printk("eata_dma: get_conf_PIO, error during "
- "transfer for HBA at %lx\n", base));
- goto fail;
- }
-
- if (cpu_to_be32(EATA_SIGNATURE) != buf->signature)
- goto fail;
-
- DBG(DBG_PIO && DBG_PROBE, printk(KERN_NOTICE "EATA Controller found "
- "at %#4lx EATA Level: %x\n",
- base, (unsigned int) (buf->version)));
-
- while (inb(base + HA_RSTATUS) & HA_SDRQ)
- inw(base + HA_RDATA);
-
- if (!ALLOW_DMA_BOARDS) {
- for (z = 0; z < MAXISA; z++)
- if (base == ISAbases[z]) {
- buf->IRQ = ISAirqs[z];
- break;
- }
- }
-
- return 1;
-
- fail:
- release_region(base, 9);
- return 0;
-}
-
-static void print_pio_config(struct get_conf *gc)
-{
- printk("Please check values: (read config data)\n");
- printk("LEN: %d ver:%d OCS:%d TAR:%d TRNXFR:%d MORES:%d\n", be32_to_cpu(gc->len), gc->version, gc->OCS_enabled, gc->TAR_support, gc->TRNXFR, gc->MORE_support);
- printk("HAAV:%d SCSIID0:%d ID1:%d ID2:%d QUEUE:%d SG:%d SEC:%d\n", gc->HAA_valid, gc->scsi_id[3], gc->scsi_id[2], gc->scsi_id[1], be16_to_cpu(gc->queuesiz), be16_to_cpu(gc->SGsiz), gc->SECOND);
- printk("IRQ:%d IRQT:%d FORCADR:%d MCH:%d RIDQ:%d\n", gc->IRQ, gc->IRQ_TR, gc->FORCADR, gc->MAX_CHAN, gc->ID_qest);
-}
-
-static unsigned int print_selftest(unsigned int base)
-{
- unsigned char buffer[512];
-#ifdef VERBOSE_SETUP
- int z;
-#endif
-
- printk("eata_pio: executing controller self test & setup...\n");
- while (inb(base + HA_RSTATUS) & HA_SBUSY);
- outb(EATA_CMD_PIO_SETUPTEST, base + HA_WCOMMAND);
- do {
- while (inb(base + HA_RSTATUS) & HA_SBUSY)
- /* nothing */ ;
- if (inb(base + HA_RSTATUS) & HA_SDRQ) {
- insw(base + HA_RDATA, &buffer, 256);
-#ifdef VERBOSE_SETUP
- /* no beeps please... */
- for (z = 0; z < 511 && buffer[z]; z++)
- if (buffer[z] != 7)
- printk("%c", buffer[z]);
-#endif
- }
- } while (inb(base + HA_RSTATUS) & (HA_SBUSY | HA_SDRQ));
-
- return (!(inb(base + HA_RSTATUS) & HA_SERROR));
-}
-
-static int register_pio_HBA(long base, struct get_conf *gc, struct pci_dev *pdev)
-{
- unsigned long size = 0;
- char *buff;
- unsigned long cplen;
- unsigned short cppadlen;
- struct Scsi_Host *sh;
- hostdata *hd;
-
- DBG(DBG_REGISTER, print_pio_config(gc));
-
- if (gc->DMA_support) {
- printk("HBA at %#.4lx supports DMA. Please use EATA-DMA driver.\n", base);
- if (!ALLOW_DMA_BOARDS)
- return 0;
- }
-
- if ((buff = get_pio_board_data(base, gc->IRQ, gc->scsi_id[3], cplen = (cpu_to_be32(gc->cplen) + 1) / 2, cppadlen = (cpu_to_be16(gc->cppadlen) + 1) / 2)) == NULL) {
- printk("HBA at %#lx didn't react on INQUIRY. Sorry.\n", base);
- return 0;
- }
-
- if (!print_selftest(base) && !ALLOW_DMA_BOARDS) {
- printk("HBA at %#lx failed while performing self test & setup.\n", base);
- return 0;
- }
-
- size = sizeof(hostdata) + (sizeof(struct eata_ccb) * be16_to_cpu(gc->queuesiz));
-
- sh = scsi_register(&driver_template, size);
- if (sh == NULL)
- return 0;
-
- if (!reg_IRQ[gc->IRQ]) { /* Interrupt already registered ? */
- if (!request_irq(gc->IRQ, do_eata_pio_int_handler, 0, "EATA-PIO", sh)) {
- reg_IRQ[gc->IRQ]++;
- if (!gc->IRQ_TR)
- reg_IRQL[gc->IRQ] = 1; /* IRQ is edge triggered */
- } else {
- printk("Couldn't allocate IRQ %d, Sorry.\n", gc->IRQ);
- return 0;
- }
- } else { /* More than one HBA on this IRQ */
- if (reg_IRQL[gc->IRQ]) {
- printk("Can't support more than one HBA on this IRQ,\n" " if the IRQ is edge triggered. Sorry.\n");
- return 0;
- } else
- reg_IRQ[gc->IRQ]++;
- }
-
- hd = SD(sh);
-
- memset(hd->ccb, 0, (sizeof(struct eata_ccb) * be16_to_cpu(gc->queuesiz)));
- memset(hd->reads, 0, sizeof(hd->reads));
-
- strlcpy(SD(sh)->vendor, &buff[8], sizeof(SD(sh)->vendor));
- strlcpy(SD(sh)->name, &buff[16], sizeof(SD(sh)->name));
- SD(sh)->revision[0] = buff[32];
- SD(sh)->revision[1] = buff[33];
- SD(sh)->revision[2] = buff[34];
- SD(sh)->revision[3] = '.';
- SD(sh)->revision[4] = buff[35];
- SD(sh)->revision[5] = 0;
-
- switch (be32_to_cpu(gc->len)) {
- case 0x1c:
- SD(sh)->EATA_revision = 'a';
- break;
- case 0x1e:
- SD(sh)->EATA_revision = 'b';
- break;
- case 0x22:
- SD(sh)->EATA_revision = 'c';
- break;
- case 0x24:
- SD(sh)->EATA_revision = 'z';
- break;
- default:
- SD(sh)->EATA_revision = '?';
- }
-
- if (be32_to_cpu(gc->len) >= 0x22) {
- if (gc->is_PCI)
- hd->bustype = IS_PCI;
- else if (gc->is_EISA)
- hd->bustype = IS_EISA;
- else
- hd->bustype = IS_ISA;
- } else {
- if (buff[21] == '4')
- hd->bustype = IS_PCI;
- else if (buff[21] == '2')
- hd->bustype = IS_EISA;
- else
- hd->bustype = IS_ISA;
- }
-
- SD(sh)->cplen = cplen;
- SD(sh)->cppadlen = cppadlen;
- SD(sh)->hostid = gc->scsi_id[3];
- SD(sh)->devflags = 1 << gc->scsi_id[3];
- SD(sh)->moresupport = gc->MORE_support;
- sh->unique_id = base;
- sh->base = base;
- sh->io_port = base;
- sh->n_io_port = 9;
- sh->irq = gc->IRQ;
- sh->dma_channel = PIO;
- sh->this_id = gc->scsi_id[3];
- sh->can_queue = 1;
- sh->cmd_per_lun = 1;
- sh->sg_tablesize = SG_ALL;
-
- hd->channel = 0;
-
- hd->pdev = pci_dev_get(pdev); /* Keep a PCI reference */
-
- sh->max_id = 8;
- sh->max_lun = 8;
-
- if (gc->SECOND)
- hd->primary = 0;
- else
- hd->primary = 1;
-
- hd->next = NULL; /* build a linked list of all HBAs */
- hd->prev = last_HBA;
- if (hd->prev != NULL)
- SD(hd->prev)->next = sh;
- last_HBA = sh;
- if (first_HBA == NULL)
- first_HBA = sh;
- registered_HBAs++;
- return (1);
-}
-
-static void find_pio_ISA(struct get_conf *buf)
-{
- int i;
-
- for (i = 0; i < MAXISA; i++) {
- if (!ISAbases[i])
- continue;
- if (!get_pio_conf_PIO(ISAbases[i], buf))
- continue;
- if (!register_pio_HBA(ISAbases[i], buf, NULL))
- release_region(ISAbases[i], 9);
- else
- ISAbases[i] = 0;
- }
- return;
-}
-
-static void find_pio_EISA(struct get_conf *buf)
-{
- u32 base;
- int i;
-
-#ifdef CHECKPAL
- u8 pal1, pal2, pal3;
-#endif
-
- for (i = 0; i < MAXEISA; i++) {
- if (EISAbases[i]) { /* Still a possibility ? */
-
- base = 0x1c88 + (i * 0x1000);
-#ifdef CHECKPAL
- pal1 = inb((u16) base - 8);
- pal2 = inb((u16) base - 7);
- pal3 = inb((u16) base - 6);
-
- if (((pal1 == 0x12) && (pal2 == 0x14)) || ((pal1 == 0x38) && (pal2 == 0xa3) && (pal3 == 0x82)) || ((pal1 == 0x06) && (pal2 == 0x94) && (pal3 == 0x24))) {
- DBG(DBG_PROBE, printk(KERN_NOTICE "EISA EATA id tags found: " "%x %x %x \n", (int) pal1, (int) pal2, (int) pal3));
-#endif
- if (get_pio_conf_PIO(base, buf)) {
- DBG(DBG_PROBE && DBG_EISA, print_pio_config(buf));
- if (buf->IRQ) {
- if (!register_pio_HBA(base, buf, NULL))
- release_region(base, 9);
- } else {
- printk(KERN_NOTICE "eata_dma: No valid IRQ. HBA " "removed from list\n");
- release_region(base, 9);
- }
- }
- /* Nothing found here so we take it from the list */
- EISAbases[i] = 0;
-#ifdef CHECKPAL
- }
-#endif
- }
- }
- return;
-}
-
-static void find_pio_PCI(struct get_conf *buf)
-{
-#ifndef CONFIG_PCI
- printk("eata_dma: kernel PCI support not enabled. Skipping scan for PCI HBAs.\n");
-#else
- struct pci_dev *dev = NULL;
- unsigned long base, x;
-
- while ((dev = pci_get_device(PCI_VENDOR_ID_DPT, PCI_DEVICE_ID_DPT, dev)) != NULL) {
- DBG(DBG_PROBE && DBG_PCI, printk("eata_pio: find_PCI, HBA at %s\n", pci_name(dev)));
- if (pci_enable_device(dev))
- continue;
- pci_set_master(dev);
- base = pci_resource_flags(dev, 0);
- if (base & IORESOURCE_MEM) {
- printk("eata_pio: invalid base address of device %s\n", pci_name(dev));
- continue;
- }
- base = pci_resource_start(dev, 0);
- /* EISA tag there ? */
- if ((inb(base) == 0x12) && (inb(base + 1) == 0x14))
- continue; /* Jep, it's forced, so move on */
- base += 0x10; /* Now, THIS is the real address */
- if (base != 0x1f8) {
- /* We didn't find it in the primary search */
- if (get_pio_conf_PIO(base, buf)) {
- if (buf->FORCADR) { /* If the address is forced */
- release_region(base, 9);
- continue; /* we'll find it later */
- }
-
- /* OK. We made it till here, so we can go now
- * and register it. We only have to check and
- * eventually remove it from the EISA and ISA list
- */
-
- if (!register_pio_HBA(base, buf, dev)) {
- release_region(base, 9);
- continue;
- }
-
- if (base < 0x1000) {
- for (x = 0; x < MAXISA; ++x) {
- if (ISAbases[x] == base) {
- ISAbases[x] = 0;
- break;
- }
- }
- } else if ((base & 0x0fff) == 0x0c88) {
- x = (base >> 12) & 0x0f;
- EISAbases[x] = 0;
- }
- }
-#ifdef CHECK_BLINK
- else if (check_blink_state(base)) {
- printk("eata_pio: HBA is in BLINK state.\n" "Consult your HBAs manual to correct this.\n");
- }
-#endif
- }
- }
-#endif /* #ifndef CONFIG_PCI */
-}
-
-static int eata_pio_detect(struct scsi_host_template *tpnt)
-{
- struct Scsi_Host *HBA_ptr;
- struct get_conf gc;
- int i;
-
- find_pio_PCI(&gc);
- find_pio_EISA(&gc);
- find_pio_ISA(&gc);
-
- for (i = 0; i < MAXIRQ; i++)
- if (reg_IRQ[i])
- request_irq(i, do_eata_pio_int_handler, 0, "EATA-PIO", NULL);
-
- HBA_ptr = first_HBA;
-
- if (registered_HBAs != 0) {
- printk("EATA (Extended Attachment) PIO driver version: %d.%d%s\n"
- "(c) 1993-95 Michael Neuffer, neuffer@goofy.zdv.uni-mainz.de\n" " Alfred Arnold, a.arnold@kfa-juelich.de\n" "This release only supports DASD devices (harddisks)\n", VER_MAJOR, VER_MINOR, VER_SUB);
-
- printk("Registered HBAs:\n");
- printk("HBA no. Boardtype: Revis: EATA: Bus: BaseIO: IRQ: Ch: ID: Pr:" " QS: SG: CPL:\n");
- for (i = 1; i <= registered_HBAs; i++) {
- printk("scsi%-2d: %.10s v%s 2.0%c %s %#.4lx %2d %d %d %c"
- " %2d %2d %2d\n",
- HBA_ptr->host_no, SD(HBA_ptr)->name, SD(HBA_ptr)->revision,
- SD(HBA_ptr)->EATA_revision, (SD(HBA_ptr)->bustype == 'P') ?
- "PCI " : (SD(HBA_ptr)->bustype == 'E') ? "EISA" : "ISA ",
- HBA_ptr->base, HBA_ptr->irq, SD(HBA_ptr)->channel, HBA_ptr->this_id,
- SD(HBA_ptr)->primary ? 'Y' : 'N', HBA_ptr->can_queue,
- HBA_ptr->sg_tablesize, HBA_ptr->cmd_per_lun);
- HBA_ptr = SD(HBA_ptr)->next;
- }
- }
- return (registered_HBAs);
-}
-
-static struct scsi_host_template driver_template = {
- .proc_name = "eata_pio",
- .name = "EATA (Extended Attachment) PIO driver",
- .show_info = eata_pio_show_info,
- .detect = eata_pio_detect,
- .release = eata_pio_release,
- .queuecommand = eata_pio_queue,
- .eh_abort_handler = eata_pio_abort,
- .eh_host_reset_handler = eata_pio_host_reset,
- .use_clustering = ENABLE_CLUSTERING,
-};
-
-MODULE_AUTHOR("Michael Neuffer, Alfred Arnold");
-MODULE_DESCRIPTION("EATA SCSI PIO driver");
-MODULE_LICENSE("GPL");
-
-#include "scsi_module.c"