* (c) 1995,1996 Grant R. Guenther, grant@torque.net,
* under the terms of the GNU General Public License.
*
- * Current Maintainer: David Campbell (Perth, Western Australia, GMT+0800)
- * campbell@torque.net
*/
-#include <linux/config.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
int base; /* Actual port address */
int mode; /* Transfer mode */
struct scsi_cmnd *cur_cmd; /* Current queued command */
- struct work_struct ppa_tq; /* Polling interrupt stuff */
+ struct delayed_work ppa_tq; /* Polling interrupt stuff */
unsigned long jstart; /* Jiffies at start */
unsigned long recon_tmo; /* How many usecs to wait for reconnection (6th bit) */
unsigned int failed:1; /* Failure flag */
if ((length > 10) && (strncmp(buffer, "recon_tmo=", 10) == 0)) {
x = simple_strtoul(buffer + 10, NULL, 0);
dev->recon_tmo = x;
- printk("ppa: recon_tmo set to %ld\n", x);
+ printk(KERN_INFO "ppa: recon_tmo set to %ld\n", x);
return length;
}
- printk("ppa /proc: invalid variable\n");
- return (-EINVAL);
+ printk(KERN_WARNING "ppa /proc: invalid variable\n");
+ return -EINVAL;
}
static int ppa_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset, int length, int inout)
/* Counter expired - Time out occurred */
ppa_fail(dev, DID_TIME_OUT);
- printk("ppa timeout in ppa_wait\n");
+ printk(KERN_WARNING "ppa timeout in ppa_wait\n");
return 0; /* command timed out */
}
return;
udelay(5);
}
- printk("ppa: ECP sync failed as data still present in FIFO.\n");
+ printk(KERN_WARNING "ppa: ECP sync failed as data still present in FIFO.\n");
}
}
break;
default:
- printk("PPA: bug in ppa_out()\n");
+ printk(KERN_ERR "PPA: bug in ppa_out()\n");
r = 0;
}
return r;
break;
default:
- printk("PPA: bug in ppa_ins()\n");
+ printk(KERN_ERR "PPA: bug in ppa_ins()\n");
r = 0;
break;
}
cmd->SCp.buffer++;
cmd->SCp.this_residual =
cmd->SCp.buffer->length;
- cmd->SCp.ptr =
- page_address(cmd->SCp.buffer->page) +
- cmd->SCp.buffer->offset;
+ cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
}
}
/* Now check to see if the drive is ready to comunicate */
* the scheduler's task queue to generate a stream of call-backs and
* complete the request when the drive is ready.
*/
-static void ppa_interrupt(void *data)
+static void ppa_interrupt(struct work_struct *work)
{
- ppa_struct *dev = (ppa_struct *) data;
+ ppa_struct *dev = container_of(work, ppa_struct, ppa_tq.work);
struct scsi_cmnd *cmd = dev->cur_cmd;
if (!cmd) {
- printk("PPA: bug in ppa_interrupt\n");
+ printk(KERN_ERR "PPA: bug in ppa_interrupt\n");
return;
}
if (ppa_engine(dev, cmd)) {
- dev->ppa_tq.data = (void *) dev;
schedule_delayed_work(&dev->ppa_tq, 1);
return;
}
case DID_OK:
break;
case DID_NO_CONNECT:
- printk("ppa: no device at SCSI ID %i\n", cmd->device->target);
+ printk(KERN_DEBUG "ppa: no device at SCSI ID %i\n", cmd->device->target);
break;
case DID_BUS_BUSY:
- printk("ppa: BUS BUSY - EPP timeout detected\n");
+ printk(KERN_DEBUG "ppa: BUS BUSY - EPP timeout detected\n");
break;
case DID_TIME_OUT:
- printk("ppa: unknown timeout\n");
+ printk(KERN_DEBUG "ppa: unknown timeout\n");
break;
case DID_ABORT:
- printk("ppa: told to abort\n");
+ printk(KERN_DEBUG "ppa: told to abort\n");
break;
case DID_PARITY:
- printk("ppa: parity error (???)\n");
+ printk(KERN_DEBUG "ppa: parity error (???)\n");
break;
case DID_ERROR:
- printk("ppa: internal driver error\n");
+ printk(KERN_DEBUG "ppa: internal driver error\n");
break;
case DID_RESET:
- printk("ppa: told to reset device\n");
+ printk(KERN_DEBUG "ppa: told to reset device\n");
break;
case DID_BAD_INTR:
- printk("ppa: bad interrupt (???)\n");
+ printk(KERN_WARNING "ppa: bad interrupt (???)\n");
break;
default:
- printk("ppa: bad return code (%02x)\n",
+ printk(KERN_WARNING "ppa: bad return code (%02x)\n",
(cmd->result >> 16) & 0xff);
}
#endif
if (retv) {
if (time_after(jiffies, dev->jstart + (1 * HZ))) {
- printk
- ("ppa: Parallel port cable is unplugged!!\n");
+ printk(KERN_ERR "ppa: Parallel port cable is unplugged.\n");
ppa_fail(dev, DID_BUS_BUSY);
return 0;
} else {
cmd->SCp.phase++;
case 4: /* Phase 4 - Setup scatter/gather buffers */
- if (cmd->use_sg) {
- /* if many buffers are available, start filling the first */
- cmd->SCp.buffer =
- (struct scatterlist *) cmd->request_buffer;
+ if (scsi_bufflen(cmd)) {
+ cmd->SCp.buffer = scsi_sglist(cmd);
cmd->SCp.this_residual = cmd->SCp.buffer->length;
- cmd->SCp.ptr =
- page_address(cmd->SCp.buffer->page) +
- cmd->SCp.buffer->offset;
+ cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
} else {
- /* else fill the only available buffer */
cmd->SCp.buffer = NULL;
- cmd->SCp.this_residual = cmd->request_bufflen;
- cmd->SCp.ptr = cmd->request_buffer;
+ cmd->SCp.this_residual = 0;
+ cmd->SCp.ptr = NULL;
}
- cmd->SCp.buffers_residual = cmd->use_sg - 1;
+ cmd->SCp.buffers_residual = scsi_sg_count(cmd) - 1;
cmd->SCp.phase++;
case 5: /* Phase 5 - Data transfer stage */
break;
default:
- printk("ppa: Invalid scsi phase\n");
+ printk(KERN_ERR "ppa: Invalid scsi phase\n");
}
return 0;
}
ppa_struct *dev = ppa_dev(cmd->device->host);
if (dev->cur_cmd) {
- printk("PPA: bug in ppa_queuecommand\n");
+ printk(KERN_ERR "PPA: bug in ppa_queuecommand\n");
return 0;
}
dev->failed = 0;
cmd->result = DID_ERROR << 16; /* default return code */
cmd->SCp.phase = 0; /* bus free */
- dev->ppa_tq.data = dev;
- schedule_work(&dev->ppa_tq);
+ schedule_delayed_work(&dev->ppa_tq, 0);
ppa_pb_claim(dev);
/* This routine looks for a device and then attempts to use EPP
to send a command. If all goes as planned then EPP is available. */
- static char cmd[6] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+ static u8 cmd[6] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
int loop, old_mode, status, k, ppb = dev->base;
unsigned char l;
if ((ppb & 0x0007) == 0x0000)
dev->mode = PPA_EPP_32;
- second_pass:
+second_pass:
ppa_connect(dev, CONNECT_EPP_MAYBE);
/* Select SCSI device */
if (!ppa_select(dev, loop)) {
ppa_disconnect(dev);
continue;
}
- printk("ppa: Found device at ID %i, Attempting to use %s\n",
+ printk(KERN_INFO "ppa: Found device at ID %i, Attempting to use %s\n",
loop, PPA_MODE_STRING[dev->mode]);
/* Send SCSI command */
return -EIO;
}
ppa_disconnect(dev);
- printk("ppa: Communication established with ID %i using %s\n",
+ printk(KERN_INFO "ppa: Communication established with ID %i using %s\n",
loop, PPA_MODE_STRING[dev->mode]);
ppa_connect(dev, CONNECT_EPP_MAYBE);
ppa_reset_pulse(ppb);
return -ENODEV;
}
+static int ppa_adjust_queue(struct scsi_device *device)
+{
+ blk_queue_bounce_limit(device->request_queue, BLK_BOUNCE_HIGH);
+ return 0;
+}
+
static struct scsi_host_template ppa_template = {
.module = THIS_MODULE,
.proc_name = "ppa",
.cmd_per_lun = 1,
.use_clustering = ENABLE_CLUSTERING,
.can_queue = 1,
+ .slave_alloc = ppa_adjust_queue,
};
/***************************************************************************
static int __ppa_attach(struct parport *pb)
{
struct Scsi_Host *host;
- DECLARE_WAIT_QUEUE_HEAD(waiting);
+ DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waiting);
DEFINE_WAIT(wait);
ppa_struct *dev;
int ports;
int modes, ppb, ppb_hi;
int err = -ENOMEM;
- dev = kmalloc(sizeof(ppa_struct), GFP_KERNEL);
+ dev = kzalloc(sizeof(ppa_struct), GFP_KERNEL);
if (!dev)
return -ENOMEM;
- memset(dev, 0, sizeof(ppa_struct));
dev->base = -1;
dev->mode = PPA_AUTODETECT;
dev->recon_tmo = PPA_RECON_TMO;
else
ports = 8;
- INIT_WORK(&dev->ppa_tq, ppa_interrupt, dev);
+ INIT_DELAYED_WORK(&dev->ppa_tq, ppa_interrupt);
err = -ENOMEM;
host = scsi_host_alloc(&ppa_template, sizeof(ppa_struct *));
static int __init ppa_driver_init(void)
{
- printk("ppa: Version %s\n", PPA_VERSION);
+ printk(KERN_INFO "ppa: Version %s\n", PPA_VERSION);
return parport_register_driver(&ppa_driver);
}