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Commit 8561c44c authored by Alexey Dobriyan's avatar Alexey Dobriyan Committed by Linus Torvalds
Browse files

proc tty: switch stallion to ->proc_fops 



Signed-off-by: default avatarAlexey Dobriyan <adobriyan@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 87687144

drivers/char/stallion.c

+50 −76
Original line number Diff line number Diff line
@@ -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;



	pr_debug("stl_readproc(page=%p,start=%p,off=%lx,count=%d,eof=%p,"

		"data=%p\n", page, start, off, count, eof, data);

	int		totalport;



	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);

			}

		}

	}

	return 0;

}



	*eof = 1;



stl_readdone:

	*start = page;

	return pos - page;

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 = {