Contributors: 19
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Christian Bornträger |
92 |
20.67% |
1 |
3.03% |
| Milton D. Miller II |
89 |
20.00% |
4 |
12.12% |
| Ryan S. Arnold |
66 |
14.83% |
2 |
6.06% |
| Hendrik Brueckner |
51 |
11.46% |
4 |
12.12% |
| Anton Blanchard |
42 |
9.44% |
2 |
6.06% |
| Benjamin Herrenschmidt |
20 |
4.49% |
1 |
3.03% |
| Michael Ellerman |
19 |
4.27% |
2 |
6.06% |
| Jiri Slaby (SUSE) |
12 |
2.70% |
2 |
6.06% |
| Andrew Morton |
11 |
2.47% |
2 |
6.06% |
| Greg Kroah-Hartman |
9 |
2.02% |
3 |
9.09% |
| Nicholas Piggin |
8 |
1.80% |
1 |
3.03% |
| Will Schmidt |
6 |
1.35% |
1 |
3.03% |
| Stephen Rothwell |
5 |
1.12% |
1 |
3.03% |
| Samuel Mendoza-Jonas |
4 |
0.90% |
1 |
3.03% |
| Jiri Slaby |
4 |
0.90% |
1 |
3.03% |
| Rusty Russell |
3 |
0.67% |
1 |
3.03% |
| Ilpo Järvinen |
2 |
0.45% |
2 |
6.06% |
| Nishad Kamdar |
1 |
0.22% |
1 |
3.03% |
| Uwe Kleine-König |
1 |
0.22% |
1 |
3.03% |
| Total |
445 |
|
33 |
|
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* 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
*/
#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 {
struct tty_port port;
spinlock_t lock;
int index;
int do_wakeup;
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;
unsigned long flags;
u8 outbuf[] __aligned(sizeof(long));
};
/* implemented by a low level driver */
struct hv_ops {
ssize_t (*get_chars)(uint32_t vtermno, u8 *buf, size_t count);
ssize_t (*put_chars)(uint32_t vtermno, const u8 *buf, size_t count);
int (*flush)(uint32_t vtermno, bool wait);
/* 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);
/* tiocmget/set implementation */
int (*tiocmget)(struct hvc_struct *hp);
int (*tiocmset)(struct hvc_struct *hp, unsigned int set, unsigned int clear);
/* Callbacks to handle tty ports */
void (*dtr_rts)(struct hvc_struct *hp, bool active);
};
/* 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 void 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