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proc tty: switch stallion to ->proc_fops 

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alexey Dobriyan 2009-03-31 15:19:18 -07:00 committed by Linus Torvalds
parent 87687144b4
commit 8561c44c9e
1 changed files with 50 additions and 76 deletions
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126
drivers/char/stallion.c
View File

@ -32,6 +32,7 @@
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/serial.h>
#include <linux/seq_file.h>
#include <linux/cd1400.h>
#include <linux/sc26198.h>
#include <linux/comstats.h>
@ -1379,52 +1380,47 @@ static void stl_sendxchar(struct tty_struct *tty, char ch)
stl_putchar(tty, ch);
}
/*****************************************************************************/
#define MAXLINE 80
/*
* Format info for a specified port. The line is deliberately limited
* to 80 characters. (If it is too long it will be truncated, if too
* short then padded with spaces).
*/
static int stl_portinfo(struct stlport *portp, int portnr, char *pos)
static void stl_portinfo(struct seq_file *m, struct stlport *portp, int portnr)
{
char *sp;
int sigs, cnt;
int sigs;
char sep;
sp = pos;
sp += sprintf(sp, "%d: uart:%s tx:%d rx:%d",
seq_printf(m, "%d: uart:%s tx:%d rx:%d",
portnr, (portp->hwid == 1) ? "SC26198" : "CD1400",
(int) portp->stats.txtotal, (int) portp->stats.rxtotal);
if (portp->stats.rxframing)
sp += sprintf(sp, " fe:%d", (int) portp->stats.rxframing);
seq_printf(m, " fe:%d", (int) portp->stats.rxframing);
if (portp->stats.rxparity)
sp += sprintf(sp, " pe:%d", (int) portp->stats.rxparity);
seq_printf(m, " pe:%d", (int) portp->stats.rxparity);
if (portp->stats.rxbreaks)
sp += sprintf(sp, " brk:%d", (int) portp->stats.rxbreaks);
seq_printf(m, " brk:%d", (int) portp->stats.rxbreaks);
if (portp->stats.rxoverrun)
sp += sprintf(sp, " oe:%d", (int) portp->stats.rxoverrun);
seq_printf(m, " oe:%d", (int) portp->stats.rxoverrun);
sigs = stl_getsignals(portp);
cnt = sprintf(sp, "%s%s%s%s%s ",
(sigs & TIOCM_RTS) ? "|RTS" : "",
(sigs & TIOCM_CTS) ? "|CTS" : "",
(sigs & TIOCM_DTR) ? "|DTR" : "",
(sigs & TIOCM_CD) ? "|DCD" : "",
(sigs & TIOCM_DSR) ? "|DSR" : "");
*sp = ' ';
sp += cnt;
for (cnt = sp - pos; cnt < (MAXLINE - 1); cnt++)
*sp++ = ' ';
if (cnt >= MAXLINE)
pos[(MAXLINE - 2)] = '+';
pos[(MAXLINE - 1)] = '\n';
return MAXLINE;
sep = ' ';
if (sigs & TIOCM_RTS) {
seq_printf(m, "%c%s", sep, "RTS");
sep = '|';
}
if (sigs & TIOCM_CTS) {
seq_printf(m, "%c%s", sep, "CTS");
sep = '|';
}
if (sigs & TIOCM_DTR) {
seq_printf(m, "%c%s", sep, "DTR");
sep = '|';
}
if (sigs & TIOCM_CD) {
seq_printf(m, "%c%s", sep, "DCD");
sep = '|';
}
if (sigs & TIOCM_DSR) {
seq_printf(m, "%c%s", sep, "DSR");
sep = '|';
}
seq_putc(m, '\n');
}
/*****************************************************************************/
@ -1433,30 +1429,17 @@ static int stl_portinfo(struct stlport *portp, int portnr, char *pos)
* Port info, read from the /proc file system.
*/
static int stl_readproc(char *page, char **start, off_t off, int count, int *eof, void *data)
static int stl_proc_show(struct seq_file *m, void *v)
{
struct stlbrd *brdp;
struct stlpanel *panelp;
struct stlport *portp;
unsigned int brdnr, panelnr, portnr;
int totalport, curoff, maxoff;
char *pos;
int totalport;
pr_debug("stl_readproc(page=%p,start=%p,off=%lx,count=%d,eof=%p,"
"data=%p\n", page, start, off, count, eof, data);
pos = page;
totalport = 0;
curoff = 0;
if (off == 0) {
pos += sprintf(pos, "%s: version %s", stl_drvtitle,
stl_drvversion);
while (pos < (page + MAXLINE - 1))
*pos++ = ' ';
*pos++ = '\n';
}
curoff = MAXLINE;
seq_printf(m, "%s: version %s\n", stl_drvtitle, stl_drvversion);
/*
* We scan through for each board, panel and port. The offset is
@ -1469,46 +1452,37 @@ static int stl_readproc(char *page, char **start, off_t off, int count, int *eof
if (brdp->state == 0)
continue;
maxoff = curoff + (brdp->nrports * MAXLINE);
if (off >= maxoff) {
curoff = maxoff;
continue;
}
totalport = brdnr * STL_MAXPORTS;
for (panelnr = 0; panelnr < brdp->nrpanels; panelnr++) {
panelp = brdp->panels[panelnr];
if (panelp == NULL)
continue;
maxoff = curoff + (panelp->nrports * MAXLINE);
if (off >= maxoff) {
curoff = maxoff;
totalport += panelp->nrports;
continue;
}
for (portnr = 0; portnr < panelp->nrports; portnr++,
totalport++) {
portp = panelp->ports[portnr];
if (portp == NULL)
continue;
if (off >= (curoff += MAXLINE))
continue;
if ((pos - page + MAXLINE) > count)
goto stl_readdone;
pos += stl_portinfo(portp, totalport, pos);
stl_portinfo(m, portp, totalport);
}
}
}
*eof = 1;
stl_readdone:
*start = page;
return pos - page;
return 0;
}
static int stl_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, stl_proc_show, NULL);
}
static const struct file_operations stl_proc_fops = {
.owner = THIS_MODULE,
.open = stl_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
/*****************************************************************************/
/*
@ -2566,9 +2540,9 @@ static const struct tty_operations stl_ops = {
.break_ctl = stl_breakctl,
.wait_until_sent = stl_waituntilsent,
.send_xchar = stl_sendxchar,
.read_proc = stl_readproc,
.tiocmget = stl_tiocmget,
.tiocmset = stl_tiocmset,
.proc_fops = &stl_proc_fops,
};
static const struct tty_port_operations stl_port_ops = {