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Message-ID: <20080729015715.GC3135@martell.zuzino.mipt.ru>
Date: Tue, 29 Jul 2008 05:57:15 +0400
From: Alexey Dobriyan <adobriyan@...il.com>
To: akpm@...l.org, alan@...rguk.ukuu.org.uk
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH 03/13] proc tty: switch ip2 to ->proc_fops
Signed-off-by: Alexey Dobriyan <adobriyan@...il.com>
---
drivers/char/ip2/ip2main.c | 78 +++++++++++++++++++++++----------------------
1 file changed, 40 insertions(+), 38 deletions(-)
--- a/drivers/char/ip2/ip2main.c
+++ b/drivers/char/ip2/ip2main.c
@@ -139,7 +139,9 @@
#include <linux/seq_file.h>
static const struct file_operations ip2mem_proc_fops;
-static int ip2_read_proc(char *, char **, off_t, int, int *, void * );
+#ifdef CONFIG_PROC_FS
+static const struct file_operations ip2_proc_fops;
+#endif
/********************/
/* Type Definitions */
@@ -453,7 +455,9 @@ static const struct tty_operations ip2_ops = {
.stop = ip2_stop,
.start = ip2_start,
.hangup = ip2_hangup,
- .read_proc = ip2_read_proc,
+#ifdef CONFIG_PROC_FS
+ .proc_fops = &ip2_proc_fops,
+#endif
.tiocmget = ip2_tiocmget,
.tiocmset = ip2_tiocmset,
};
@@ -3000,6 +3004,7 @@ static const struct file_operations ip2mem_proc_fops = {
.release = single_release,
};
+#ifdef CONFIG_PROC_FS
/*
* This is the handler for /proc/tty/driver/ip2
*
@@ -3007,19 +3012,17 @@ static const struct file_operations ip2mem_proc_fops = {
* different sources including ip2mkdev.c and a couple of other drivers.
* The bugs are all mine. :-) =mhw=
*/
-static int ip2_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int ip2_proc_show(struct seq_file *m, void *v)
{
int i, j, box;
- int len = 0;
int boxes = 0;
int ports = 0;
int tports = 0;
- off_t begin = 0;
i2eBordStrPtr pB;
+ char *sep;
- len += sprintf(page, "ip2info: 1.0 driver: %s\n", pcVersion );
- len += sprintf(page+len, "Driver: SMajor=%d CMajor=%d IMajor=%d MaxBoards=%d MaxBoxes=%d MaxPorts=%d\n",
+ seq_printf(m, "ip2info: 1.0 driver: %s\n", pcVersion );
+ seq_printf(m, "Driver: SMajor=%d CMajor=%d IMajor=%d MaxBoards=%d MaxBoxes=%d MaxPorts=%d\n",
IP2_TTY_MAJOR, IP2_CALLOUT_MAJOR, IP2_IPL_MAJOR,
IP2_MAX_BOARDS, ABS_MAX_BOXES, ABS_BIGGEST_BOX);
@@ -3031,7 +3034,8 @@ static int ip2_read_proc(char *page, char **start, off_t off,
switch( pB->i2ePom.e.porID & ~POR_ID_RESERVED )
{
case POR_ID_FIIEX:
- len += sprintf( page+len, "Board %d: EX ports=", i );
+ seq_printf( m, "Board %d: EX ports=", i );
+ sep = "";
for( box = 0; box < ABS_MAX_BOXES; ++box )
{
ports = 0;
@@ -3043,79 +3047,77 @@ static int ip2_read_proc(char *page, char **start, off_t off,
++ports;
}
}
- len += sprintf( page+len, "%d,", ports );
+ seq_printf( m, "%s%d", sep, ports );
+ sep = ",";
tports += ports;
}
- --len; /* Backup over that last comma */
-
- len += sprintf( page+len, " boxes=%d width=%d", boxes, pB->i2eDataWidth16 ? 16 : 8 );
+ seq_printf( m, " boxes=%d width=%d", boxes, pB->i2eDataWidth16 ? 16 : 8 );
break;
case POR_ID_II_4:
- len += sprintf(page+len, "Board %d: ISA-4 ports=4 boxes=1", i );
+ seq_printf(m, "Board %d: ISA-4 ports=4 boxes=1", i );
tports = ports = 4;
break;
case POR_ID_II_8:
- len += sprintf(page+len, "Board %d: ISA-8-std ports=8 boxes=1", i );
+ seq_printf(m, "Board %d: ISA-8-std ports=8 boxes=1", i );
tports = ports = 8;
break;
case POR_ID_II_8R:
- len += sprintf(page+len, "Board %d: ISA-8-RJ11 ports=8 boxes=1", i );
+ seq_printf(m, "Board %d: ISA-8-RJ11 ports=8 boxes=1", i );
tports = ports = 8;
break;
default:
- len += sprintf(page+len, "Board %d: unknown", i );
+ seq_printf(m, "Board %d: unknown", i );
/* Don't try and probe for minor numbers */
tports = ports = 0;
}
} else {
/* Don't try and probe for minor numbers */
- len += sprintf(page+len, "Board %d: vacant", i );
+ seq_printf(m, "Board %d: vacant", i );
tports = ports = 0;
}
if( tports ) {
- len += sprintf(page+len, " minors=" );
+ seq_puts(m, " minors=" );
+ sep = "";
for ( box = 0; box < ABS_MAX_BOXES; ++box )
{
for ( j = 0; j < ABS_BIGGEST_BOX; ++j )
{
if ( pB->i2eChannelMap[box] & (1 << j) )
{
- len += sprintf (page+len,"%d,",
+ seq_printf (m,"%s%d", sep,
j + ABS_BIGGEST_BOX *
(box+i*ABS_MAX_BOXES));
+ sep = ",";
}
}
}
-
- page[ len - 1 ] = '\n'; /* Overwrite that last comma */
- } else {
- len += sprintf (page+len,"\n" );
- }
-
- if (len+begin > off+count)
- break;
- if (len+begin < off) {
- begin += len;
- len = 0;
}
+ seq_putc(m, '\n');
}
+ return 0;
+ }
- if (i >= IP2_MAX_BOARDS)
- *eof = 1;
- if (off >= len+begin)
- return 0;
+static int ip2_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, ip2_proc_show, NULL);
+}
- *start = page + (off-begin);
- return ((count < begin+len-off) ? count : begin+len-off);
- }
+static const struct file_operations ip2_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = ip2_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+#endif
/******************************************************************************/
/* Function: ip2trace() */
--
1.5.4.5
--
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