Release 4.7 drivers/tty/hvc/hvc_udbg.c
  
  
/*
 * udbg interface to hvc_console.c
 *
 * (C) Copyright David Gibson, IBM Corporation 2008.
 *
 * 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
 */
#include <linux/console.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/irq.h>
#include <asm/udbg.h>
#include "hvc_console.h"
struct hvc_struct *hvc_udbg_dev;
static int hvc_udbg_put(uint32_t vtermno, const char *buf, int count)
{
	int i;
	for (i = 0; i < count && udbg_putc; i++)
		udbg_putc(buf[i]);
	return i;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| david gibson | david gibson | 44 | 95.65% | 1 | 50.00% | 
| benjamin herrenschmidt | benjamin herrenschmidt | 2 | 4.35% | 1 | 50.00% | 
 | Total | 46 | 100.00% | 2 | 100.00% | 
static int hvc_udbg_get(uint32_t vtermno, char *buf, int count)
{
	int i, c;
	if (!udbg_getc_poll)
		return 0;
	for (i = 0; i < count; i++) {
		if ((c = udbg_getc_poll()) == -1)
			break;
		buf[i] = c;
	}
	return i;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| david gibson | david gibson | 67 | 100.00% | 1 | 100.00% | 
 | Total | 67 | 100.00% | 1 | 100.00% | 
static const struct hv_ops hvc_udbg_ops = {
	.get_chars = hvc_udbg_get,
	.put_chars = hvc_udbg_put,
};
static int __init hvc_udbg_init(void)
{
	struct hvc_struct *hp;
	if (!udbg_putc)
		return -ENODEV;
	BUG_ON(hvc_udbg_dev);
	hp = hvc_alloc(0, 0, &hvc_udbg_ops, 16);
	if (IS_ERR(hp))
		return PTR_ERR(hp);
	hvc_udbg_dev = hp;
	return 0;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| david gibson | david gibson | 52 | 83.87% | 1 | 33.33% | 
| benjamin herrenschmidt | benjamin herrenschmidt | 9 | 14.52% | 1 | 33.33% | 
| alan cox | alan cox | 1 | 1.61% | 1 | 33.33% | 
 | Total | 62 | 100.00% | 3 | 100.00% | 
device_initcall(hvc_udbg_init);
static int __init hvc_udbg_console_init(void)
{
	if (!udbg_putc)
		return -ENODEV;
	hvc_instantiate(0, 0, &hvc_udbg_ops);
	add_preferred_console("hvc", 0, NULL);
	return 0;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| david gibson | david gibson | 31 | 77.50% | 1 | 50.00% | 
| benjamin herrenschmidt | benjamin herrenschmidt | 9 | 22.50% | 1 | 50.00% | 
 | Total | 40 | 100.00% | 2 | 100.00% | 
console_initcall(hvc_udbg_console_init);
Overall Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| david gibson | david gibson | 253 | 91.67% | 1 | 20.00% | 
| benjamin herrenschmidt | benjamin herrenschmidt | 20 | 7.25% | 1 | 20.00% | 
| alan cox | alan cox | 1 | 0.36% | 1 | 20.00% | 
| rusty russell | rusty russell | 1 | 0.36% | 1 | 20.00% | 
| paul gortmaker | paul gortmaker | 1 | 0.36% | 1 | 20.00% | 
 | Total | 276 | 100.00% | 5 | 100.00% | 
  
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