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authorGreg Kroah-Hartman <gregkh@suse.de>2011-01-13 23:03:00 +0300
committerGreg Kroah-Hartman <gregkh@suse.de>2011-01-13 23:03:00 +0300
commit728674a7e466628df2aeec6d11a2ae1ef968fb67 (patch)
tree83d2e44d05b257ab03230f5c95e0d6843f0ed2f9 /drivers/char/hvc_console.h
parente691d24e9c5007486bef59c589c2a2d784e0c30b (diff)
downloadlinux-728674a7e466628df2aeec6d11a2ae1ef968fb67.tar.xz
tty: move hvc drivers to drivers/tty/hvc/
As requested by Arnd Bergmann, the hvc drivers are now moved to the drivers/tty/hvc/ directory. The virtio_console.c driver was also moved, as it required the hvc_console.h file to be able to be built, and it really is a hvc driver. Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/char/hvc_console.h')
-rw-r--r--drivers/char/hvc_console.h119
1 files changed, 0 insertions, 119 deletions
diff --git a/drivers/char/hvc_console.h b/drivers/char/hvc_console.h
deleted file mode 100644
index 54381eba4e4a..000000000000
--- a/drivers/char/hvc_console.h
+++ /dev/null
@@ -1,119 +0,0 @@
-/*
- * hvc_console.h
- * Copyright (C) 2005 IBM Corporation
- *
- * Author(s):
- * Ryan S. Arnold <rsa@us.ibm.com>
- *
- * hvc_console header information:
- * moved here from arch/powerpc/include/asm/hvconsole.h
- * and drivers/char/hvc_console.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef HVC_CONSOLE_H
-#define HVC_CONSOLE_H
-#include <linux/kref.h>
-#include <linux/tty.h>
-#include <linux/spinlock.h>
-
-/*
- * This is the max number of console adapters that can/will be found as
- * console devices on first stage console init. Any number beyond this range
- * can't be used as a console device but is still a valid tty device.
- */
-#define MAX_NR_HVC_CONSOLES 16
-
-/*
- * The Linux TTY code does not support dynamic addition of tty derived devices
- * so we need to know how many tty devices we might need when space is allocated
- * for the tty device. Since this driver supports hotplug of vty adapters we
- * need to make sure we have enough allocated.
- */
-#define HVC_ALLOC_TTY_ADAPTERS 8
-
-struct hvc_struct {
- spinlock_t lock;
- int index;
- struct tty_struct *tty;
- int count;
- int do_wakeup;
- char *outbuf;
- int outbuf_size;
- int n_outbuf;
- uint32_t vtermno;
- const struct hv_ops *ops;
- int irq_requested;
- int data;
- struct winsize ws;
- struct work_struct tty_resize;
- struct list_head next;
- struct kref kref; /* ref count & hvc_struct lifetime */
-};
-
-/* implemented by a low level driver */
-struct hv_ops {
- int (*get_chars)(uint32_t vtermno, char *buf, int count);
- int (*put_chars)(uint32_t vtermno, const char *buf, int count);
-
- /* Callbacks for notification. Called in open, close and hangup */
- int (*notifier_add)(struct hvc_struct *hp, int irq);
- void (*notifier_del)(struct hvc_struct *hp, int irq);
- void (*notifier_hangup)(struct hvc_struct *hp, int irq);
-};
-
-/* Register a vterm and a slot index for use as a console (console_init) */
-extern int hvc_instantiate(uint32_t vtermno, int index,
- const struct hv_ops *ops);
-
-/* register a vterm for hvc tty operation (module_init or hotplug add) */
-extern struct hvc_struct * hvc_alloc(uint32_t vtermno, int data,
- const struct hv_ops *ops, int outbuf_size);
-/* remove a vterm from hvc tty operation (module_exit or hotplug remove) */
-extern int hvc_remove(struct hvc_struct *hp);
-
-/* data available */
-int hvc_poll(struct hvc_struct *hp);
-void hvc_kick(void);
-
-/* Resize hvc tty terminal window */
-extern void __hvc_resize(struct hvc_struct *hp, struct winsize ws);
-
-static inline void hvc_resize(struct hvc_struct *hp, struct winsize ws)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&hp->lock, flags);
- __hvc_resize(hp, ws);
- spin_unlock_irqrestore(&hp->lock, flags);
-}
-
-/* default notifier for irq based notification */
-extern int notifier_add_irq(struct hvc_struct *hp, int data);
-extern void notifier_del_irq(struct hvc_struct *hp, int data);
-extern void notifier_hangup_irq(struct hvc_struct *hp, int data);
-
-
-#if defined(CONFIG_XMON) && defined(CONFIG_SMP)
-#include <asm/xmon.h>
-#else
-static inline int cpus_are_in_xmon(void)
-{
- return 0;
-}
-#endif
-
-#endif // HVC_CONSOLE_H