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path: root/drivers/scsi/ppa.c
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Diffstat (limited to 'drivers/scsi/ppa.c')
-rw-r--r--drivers/scsi/ppa.c118
1 files changed, 48 insertions, 70 deletions
diff --git a/drivers/scsi/ppa.c b/drivers/scsi/ppa.c
index 584ba4d6e03..1db8b26063b 100644
--- a/drivers/scsi/ppa.c
+++ b/drivers/scsi/ppa.c
@@ -10,6 +10,7 @@
#include <linux/init.h>
#include <linux/kernel.h>
+#include <linux/slab.h>
#include <linux/module.h>
#include <linux/blkdev.h>
#include <linux/parport.h>
@@ -117,8 +118,9 @@ static inline void ppa_pb_release(ppa_struct *dev)
* Also gives a method to use a script to obtain optimum timings (TODO)
*/
-static inline int ppa_proc_write(ppa_struct *dev, char *buffer, int length)
+static inline int ppa_write_info(struct Scsi_Host *host, char *buffer, int length)
{
+ ppa_struct *dev = ppa_dev(host);
unsigned long x;
if ((length > 5) && (strncmp(buffer, "mode=", 5) == 0)) {
@@ -129,49 +131,31 @@ static inline int ppa_proc_write(ppa_struct *dev, char *buffer, int length)
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)
+static int ppa_show_info(struct seq_file *m, struct Scsi_Host *host)
{
- int len = 0;
ppa_struct *dev = ppa_dev(host);
- if (inout)
- return ppa_proc_write(dev, buffer, length);
-
- len += sprintf(buffer + len, "Version : %s\n", PPA_VERSION);
- len +=
- sprintf(buffer + len, "Parport : %s\n",
- dev->dev->port->name);
- len +=
- sprintf(buffer + len, "Mode : %s\n",
- PPA_MODE_STRING[dev->mode]);
+ seq_printf(m, "Version : %s\n", PPA_VERSION);
+ seq_printf(m, "Parport : %s\n", dev->dev->port->name);
+ seq_printf(m, "Mode : %s\n", PPA_MODE_STRING[dev->mode]);
#if PPA_DEBUG > 0
- len +=
- sprintf(buffer + len, "recon_tmo : %lu\n", dev->recon_tmo);
+ seq_printf(m, "recon_tmo : %lu\n", dev->recon_tmo);
#endif
-
- /* Request for beyond end of buffer */
- if (offset > length)
- return 0;
-
- *start = buffer + offset;
- len -= offset;
- if (len > length)
- len = length;
- return len;
+ return 0;
}
static int device_check(ppa_struct *dev);
#if PPA_DEBUG > 0
#define ppa_fail(x,y) printk("ppa: ppa_fail(%i) from %s at line %d\n",\
- y, __FUNCTION__, __LINE__); ppa_fail_func(x,y);
+ y, __func__, __LINE__); ppa_fail_func(x,y);
static inline void ppa_fail_func(ppa_struct *dev, int error_code)
#else
static inline void ppa_fail(ppa_struct *dev, int error_code)
@@ -216,7 +200,7 @@ static unsigned char ppa_wait(ppa_struct *dev)
/* 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 */
}
@@ -248,7 +232,7 @@ static inline void ecp_sync(ppa_struct *dev)
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");
}
}
@@ -328,7 +312,7 @@ static int ppa_out(ppa_struct *dev, char *buffer, int len)
break;
default:
- printk("PPA: bug in ppa_out()\n");
+ printk(KERN_ERR "PPA: bug in ppa_out()\n");
r = 0;
}
return r;
@@ -381,7 +365,7 @@ static int ppa_in(ppa_struct *dev, char *buffer, int len)
break;
default:
- printk("PPA: bug in ppa_ins()\n");
+ printk(KERN_ERR "PPA: bug in ppa_ins()\n");
r = 0;
break;
}
@@ -608,9 +592,7 @@ static int ppa_completion(struct scsi_cmnd *cmd)
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 */
@@ -633,7 +615,7 @@ static void ppa_interrupt(struct work_struct *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)) {
@@ -646,31 +628,31 @@ static void ppa_interrupt(struct work_struct *work)
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
@@ -724,8 +706,7 @@ static int ppa_engine(ppa_struct *dev, struct scsi_cmnd *cmd)
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 {
@@ -753,21 +734,16 @@ static int ppa_engine(ppa_struct *dev, struct scsi_cmnd *cmd)
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 */
@@ -800,18 +776,18 @@ static int ppa_engine(ppa_struct *dev, struct scsi_cmnd *cmd)
break;
default:
- printk("ppa: Invalid scsi phase\n");
+ printk(KERN_ERR "ppa: Invalid scsi phase\n");
}
return 0;
}
-static int ppa_queuecommand(struct scsi_cmnd *cmd,
+static int ppa_queuecommand_lck(struct scsi_cmnd *cmd,
void (*done) (struct scsi_cmnd *))
{
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;
@@ -828,6 +804,8 @@ static int ppa_queuecommand(struct scsi_cmnd *cmd,
return 0;
}
+static DEF_SCSI_QCMD(ppa_queuecommand)
+
/*
* Apparently the disk->capacity attribute is off by 1 sector
* for all disk drives. We add the one here, but it should really
@@ -899,7 +877,7 @@ static int device_check(ppa_struct *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;
@@ -909,14 +887,14 @@ static int device_check(ppa_struct *dev)
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 */
@@ -965,7 +943,7 @@ static int device_check(ppa_struct *dev)
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);
@@ -986,7 +964,8 @@ static int ppa_adjust_queue(struct scsi_device *device)
static struct scsi_host_template ppa_template = {
.module = THIS_MODULE,
.proc_name = "ppa",
- .proc_info = ppa_proc_info,
+ .show_info = ppa_show_info,
+ .write_info = ppa_write_info,
.name = "Iomega VPI0 (ppa) interface",
.queuecommand = ppa_queuecommand,
.eh_abort_handler = ppa_abort,
@@ -1017,10 +996,9 @@ static int __ppa_attach(struct parport *pb)
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;
@@ -1140,7 +1118,7 @@ static struct parport_driver ppa_driver = {
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);
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-06 10:03:27 +0000