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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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proc tty: switch istallion 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
Linus Torvalds
parent
cdda7cd92b
commit
5bd6de7dad
@ -24,6 +24,7 @@
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#include <linux/tty.h>
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#include <linux/tty_flip.h>
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#include <linux/serial.h>
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#include <linux/seq_file.h>
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#include <linux/cdk.h>
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#include <linux/comstats.h>
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#include <linux/istallion.h>
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@ -613,7 +614,6 @@ static int stli_breakctl(struct tty_struct *tty, int state);
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static void stli_waituntilsent(struct tty_struct *tty, int timeout);
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static void stli_sendxchar(struct tty_struct *tty, char ch);
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static void stli_hangup(struct tty_struct *tty);
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static int stli_portinfo(struct stlibrd *brdp, struct stliport *portp, int portnr, char *pos);
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static int stli_brdinit(struct stlibrd *brdp);
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static int stli_startbrd(struct stlibrd *brdp);
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@ -1893,20 +1893,10 @@ static void stli_sendxchar(struct tty_struct *tty, char ch)
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stli_cmdwait(brdp, portp, A_PORTCTRL, &actrl, sizeof(asyctrl_t), 0);
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}
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/*****************************************************************************/
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#define MAXLINE 80
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/*
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* Format info for a specified port. The line is deliberately limited
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* to 80 characters. (If it is too long it will be truncated, if too
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* short then padded with spaces).
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*/
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static int stli_portinfo(struct stlibrd *brdp, struct stliport *portp, int portnr, char *pos)
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static void stli_portinfo(struct seq_file *m, struct stlibrd *brdp, struct stliport *portp, int portnr)
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{
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char *sp, *uart;
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int rc, cnt;
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char *uart;
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int rc;
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rc = stli_portcmdstats(NULL, portp);
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@ -1918,44 +1908,50 @@ static int stli_portinfo(struct stlibrd *brdp, struct stliport *portp, int portn
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default:uart = "CD1400"; break;
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}
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}
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sp = pos;
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sp += sprintf(sp, "%d: uart:%s ", portnr, uart);
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seq_printf(m, "%d: uart:%s ", portnr, uart);
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if ((brdp->state & BST_STARTED) && (rc >= 0)) {
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sp += sprintf(sp, "tx:%d rx:%d", (int) stli_comstats.txtotal,
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char sep;
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seq_printf(m, "tx:%d rx:%d", (int) stli_comstats.txtotal,
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(int) stli_comstats.rxtotal);
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if (stli_comstats.rxframing)
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sp += sprintf(sp, " fe:%d",
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seq_printf(m, " fe:%d",
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(int) stli_comstats.rxframing);
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if (stli_comstats.rxparity)
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sp += sprintf(sp, " pe:%d",
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seq_printf(m, " pe:%d",
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(int) stli_comstats.rxparity);
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if (stli_comstats.rxbreaks)
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sp += sprintf(sp, " brk:%d",
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seq_printf(m, " brk:%d",
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(int) stli_comstats.rxbreaks);
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if (stli_comstats.rxoverrun)
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sp += sprintf(sp, " oe:%d",
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seq_printf(m, " oe:%d",
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(int) stli_comstats.rxoverrun);
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cnt = sprintf(sp, "%s%s%s%s%s ",
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(stli_comstats.signals & TIOCM_RTS) ? "|RTS" : "",
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(stli_comstats.signals & TIOCM_CTS) ? "|CTS" : "",
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(stli_comstats.signals & TIOCM_DTR) ? "|DTR" : "",
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(stli_comstats.signals & TIOCM_CD) ? "|DCD" : "",
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(stli_comstats.signals & TIOCM_DSR) ? "|DSR" : "");
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*sp = ' ';
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sp += cnt;
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sep = ' ';
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if (stli_comstats.signals & TIOCM_RTS) {
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seq_printf(m, "%c%s", sep, "RTS");
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sep = '|';
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}
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if (stli_comstats.signals & TIOCM_CTS) {
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seq_printf(m, "%c%s", sep, "CTS");
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sep = '|';
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}
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if (stli_comstats.signals & TIOCM_DTR) {
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seq_printf(m, "%c%s", sep, "DTR");
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sep = '|';
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}
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if (stli_comstats.signals & TIOCM_CD) {
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seq_printf(m, "%c%s", sep, "DCD");
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sep = '|';
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}
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if (stli_comstats.signals & TIOCM_DSR) {
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seq_printf(m, "%c%s", sep, "DSR");
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sep = '|';
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}
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}
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for (cnt = (sp - pos); (cnt < (MAXLINE - 1)); cnt++)
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*sp++ = ' ';
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if (cnt >= MAXLINE)
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pos[(MAXLINE - 2)] = '+';
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pos[(MAXLINE - 1)] = '\n';
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return(MAXLINE);
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seq_putc(m, '\n');
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}
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/*****************************************************************************/
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@ -1964,26 +1960,15 @@ static int stli_portinfo(struct stlibrd *brdp, struct stliport *portp, int portn
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* Port info, read from the /proc file system.
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*/
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static int stli_readproc(char *page, char **start, off_t off, int count, int *eof, void *data)
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static int stli_proc_show(struct seq_file *m, void *v)
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{
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struct stlibrd *brdp;
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struct stliport *portp;
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unsigned int brdnr, portnr, totalport;
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int curoff, maxoff;
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char *pos;
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pos = page;
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totalport = 0;
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curoff = 0;
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if (off == 0) {
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pos += sprintf(pos, "%s: version %s", stli_drvtitle,
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stli_drvversion);
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while (pos < (page + MAXLINE - 1))
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*pos++ = ' ';
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*pos++ = '\n';
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}
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curoff = MAXLINE;
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seq_printf(m, "%s: version %s\n", stli_drvtitle, stli_drvversion);
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/*
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* We scan through for each board, panel and port. The offset is
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@ -1996,33 +1981,31 @@ static int stli_readproc(char *page, char **start, off_t off, int count, int *eo
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if (brdp->state == 0)
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continue;
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maxoff = curoff + (brdp->nrports * MAXLINE);
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if (off >= maxoff) {
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curoff = maxoff;
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continue;
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}
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totalport = brdnr * STL_MAXPORTS;
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for (portnr = 0; (portnr < brdp->nrports); portnr++,
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totalport++) {
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portp = brdp->ports[portnr];
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if (portp == NULL)
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continue;
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if (off >= (curoff += MAXLINE))
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continue;
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if ((pos - page + MAXLINE) > count)
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goto stli_readdone;
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pos += stli_portinfo(brdp, portp, totalport, pos);
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stli_portinfo(m, brdp, portp, totalport);
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}
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}
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*eof = 1;
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stli_readdone:
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*start = page;
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return(pos - page);
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return 0;
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}
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static int stli_proc_open(struct inode *inode, struct file *file)
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{
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return single_open(file, stli_proc_show, NULL);
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}
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static const struct file_operations stli_proc_fops = {
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.owner = THIS_MODULE,
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.open = stli_proc_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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/*****************************************************************************/
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/*
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@ -4427,9 +4410,9 @@ static const struct tty_operations stli_ops = {
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.break_ctl = stli_breakctl,
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.wait_until_sent = stli_waituntilsent,
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.send_xchar = stli_sendxchar,
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.read_proc = stli_readproc,
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.tiocmget = stli_tiocmget,
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.tiocmset = stli_tiocmset,
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.proc_fops = &stli_proc_fops,
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};
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static const struct tty_port_operations stli_port_ops = {
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