Merge tag 'tty-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

[firefly-linux-kernel-4.4.55.git] / drivers / tty / hvc / hvc_beat.c

diff --git a/drivers/tty/hvc/hvc_beat.c b/drivers/tty/hvc/hvc_beat.c
deleted file mode 100644 (file)
index 1560d23..0000000
--- a/drivers/tty/hvc/hvc_beat.c
+++ /dev/null
@@ -1,134 +0,0 @@
-/*
- * Beat hypervisor console driver
- *
- * (C) Copyright 2006 TOSHIBA CORPORATION
- *
- * This code is based on drivers/char/hvc_rtas.c:
- * (C) Copyright IBM Corporation 2001-2005
- * (C) Copyright Red Hat, Inc. 2005
- *
- * 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.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/err.h>
-#include <linux/string.h>
-#include <linux/console.h>
-#include <asm/prom.h>
-#include <asm/hvconsole.h>
-#include <asm/firmware.h>
-
-#include "hvc_console.h"
-
-extern int64_t beat_get_term_char(uint64_t, uint64_t *, uint64_t *, uint64_t *);
-extern int64_t beat_put_term_char(uint64_t, uint64_t, uint64_t, uint64_t);
-
-struct hvc_struct *hvc_beat_dev = NULL;
-
-/* bug: only one queue is available regardless of vtermno */
-static int hvc_beat_get_chars(uint32_t vtermno, char *buf, int cnt)
-{
-       static unsigned char q[sizeof(unsigned long) * 2]
-               __attribute__((aligned(sizeof(unsigned long))));
-       static int qlen = 0;
-       u64 got;
-
-again:
-       if (qlen) {
-               if (qlen > cnt) {
-                       memcpy(buf, q, cnt);
-                       qlen -= cnt;
-                       memmove(q + cnt, q, qlen);
-                       return cnt;
-               } else {        /* qlen <= cnt */
-                       int     r;
-
-                       memcpy(buf, q, qlen);
-                       r = qlen;
-                       qlen = 0;
-                       return r;
-               }
-       }
-       if (beat_get_term_char(vtermno, &got,
-               ((u64 *)q), ((u64 *)q) + 1) == 0) {
-               qlen = got;
-               goto again;
-       }
-       return 0;
-}
-
-static int hvc_beat_put_chars(uint32_t vtermno, const char *buf, int cnt)
-{
-       unsigned long kb[2];
-       int rest, nlen;
-
-       for (rest = cnt; rest > 0; rest -= nlen) {
-               nlen = (rest > 16) ? 16 : rest;
-               memcpy(kb, buf, nlen);
-               beat_put_term_char(vtermno, nlen, kb[0], kb[1]);
-               buf += nlen;
-       }
-       return cnt;
-}
-
-static const struct hv_ops hvc_beat_get_put_ops = {
-       .get_chars = hvc_beat_get_chars,
-       .put_chars = hvc_beat_put_chars,
-};
-
-static int hvc_beat_useit = 1;
-
-static int hvc_beat_config(char *p)
-{
-       hvc_beat_useit = simple_strtoul(p, NULL, 0);
-       return 0;
-}
-
-static int __init hvc_beat_console_init(void)
-{
-       if (hvc_beat_useit && of_machine_is_compatible("Beat")) {
-               hvc_instantiate(0, 0, &hvc_beat_get_put_ops);
-       }
-       return 0;
-}
-
-/* temp */
-static int __init hvc_beat_init(void)
-{
-       struct hvc_struct *hp;
-
-       if (!firmware_has_feature(FW_FEATURE_BEAT))
-               return -ENODEV;
-
-       hp = hvc_alloc(0, 0, &hvc_beat_get_put_ops, 16);
-       if (IS_ERR(hp))
-               return PTR_ERR(hp);
-       hvc_beat_dev = hp;
-       return 0;
-}
-
-static void __exit hvc_beat_exit(void)
-{
-       if (hvc_beat_dev)
-               hvc_remove(hvc_beat_dev);
-}
-
-module_init(hvc_beat_init);
-module_exit(hvc_beat_exit);
-
-__setup("hvc_beat=", hvc_beat_config);
-
-console_initcall(hvc_beat_console_init);