* Authors: Dave Boutcher <boutcher@us.ibm.com>
* Ryan Arnold <ryanarn@us.ibm.com>
* Colin Devilbiss <devilbis@us.ibm.com>
- * Stephen Rothwell <sfr@au1.ibm.com>
+ * Stephen Rothwell
*
* (C) Copyright 2000, 2001, 2002, 2003, 2004 IBM Corporation
*
#include <linux/tty_flip.h>
#include <linux/sysrq.h>
+#include <asm/firmware.h>
#include <asm/iseries/vio.h>
#include <asm/iseries/hv_lp_event.h>
#include <asm/iseries/hv_call_event.h>
/*
* TTY put_char method
*/
-static void viotty_put_char(struct tty_struct *tty, unsigned char ch)
+static int viotty_put_char(struct tty_struct *tty, unsigned char ch)
{
struct port_info *pi;
pi = get_port_data(tty);
if (pi == NULL)
- return;
+ return 0;
/* This will append '\r' as well if the char is '\n' */
if (viochar_is_console(pi))
if (viopath_isactive(pi->lp))
internal_write(pi, &ch, 1);
+ return 1;
}
/*
case KDSKBLED:
return 0;
}
-
- return n_tty_ioctl(tty, file, cmd, arg);
+ /* FIXME: WTF is this being called for ??? */
+ lock_kernel();
+ ret = n_tty_ioctl(tty, file, cmd, arg);
+ unlock_kernel();
+ return ret;
}
/*
atomic_t wait_flag;
int rc;
+ if (!firmware_has_feature(FW_FEATURE_ISERIES))
+ return -ENODEV;
+
/* +2 for fudge */
rc = viopath_open(HvLpConfig_getPrimaryLpIndex(),
viomajorsubtype_chario, VIOCHAR_WINDOW + 2);
{
int i;
+ if (!firmware_has_feature(FW_FEATURE_ISERIES))
+ return -ENODEV;
+
printk(VIOCONS_KERN_INFO "registering console\n");
for (i = 0; i < VTTY_PORTS; i++) {
port_info[i].lp = HvLpIndexInvalid;