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author | Greg Kroah-Hartman <gregkh@suse.de> | 2011-01-13 12:03:00 -0800 |
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committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-01-13 12:03:00 -0800 |
commit | 728674a7e466628df2aeec6d11a2ae1ef968fb67 (patch) | |
tree | 83d2e44d05b257ab03230f5c95e0d6843f0ed2f9 /drivers/char/hvc_console.h | |
parent | e691d24e9c5007486bef59c589c2a2d784e0c30b (diff) | |
download | op-kernel-dev-728674a7e466628df2aeec6d11a2ae1ef968fb67.zip op-kernel-dev-728674a7e466628df2aeec6d11a2ae1ef968fb67.tar.gz |
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.h | 119 |
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 54381eba..0000000 --- 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 |