summaryrefslogtreecommitdiff
path: root/firmware/target/coldfire/iriver/h100/usb-h100.c
diff options
context:
space:
mode:
Diffstat (limited to 'firmware/target/coldfire/iriver/h100/usb-h100.c')
-rw-r--r--firmware/target/coldfire/iriver/h100/usb-h100.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/firmware/target/coldfire/iriver/h100/usb-h100.c b/firmware/target/coldfire/iriver/h100/usb-h100.c
new file mode 100644
index 0000000000..3b00e967da
--- /dev/null
+++ b/firmware/target/coldfire/iriver/h100/usb-h100.c
@@ -0,0 +1,51 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2006 by Linus Nielsen Feltzing
11 *
12 * All files in this archive are subject to the GNU General Public License.
13 * See the file COPYING in the source tree root for full license agreement.
14 *
15 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
16 * KIND, either express or implied.
17 *
18 ****************************************************************************/
19#include "config.h"
20#include <stdbool.h>
21#include "cpu.h"
22#include "system.h"
23#include "kernel.h"
24
25void usb_init_device(void)
26{
27 or_l(0x00000080, &GPIO1_FUNCTION); /* GPIO39 is the USB detect input */
28 and_l(~0x01000040, &GPIO_OUT); /* GPIO24 is the Cypress chip power */
29 or_l(0x01000040, &GPIO_ENABLE);
30 or_l(0x01000040, &GPIO_FUNCTION);
31}
32
33bool usb_detect(void)
34{
35 return (GPIO1_READ & 0x80)?true:false;
36}
37
38void usb_enable(bool on)
39{
40 if(on)
41 {
42 /* Power on the Cypress chip */
43 or_l(0x01000040, &GPIO_OUT);
44 sleep(2);
45 }
46 else
47 {
48 /* Power off the Cypress chip */
49 and_l(~0x01000040, &GPIO_OUT);
50 }
51}