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authorMarcin Bukat <marcin.bukat@gmail.com>2010-04-26 21:40:16 +0000
committerMarcin Bukat <marcin.bukat@gmail.com>2010-04-26 21:40:16 +0000
commit28d54c6016459ffe93c0be2efea7de27c38d783c (patch)
tree9a7a71481f0a82599616a3e9f4e5bdad9fee8d6c /firmware/target/coldfire/mpio/hd200/usb-hd200.c
parentb09d3aec392538ca0934644ff6357c41aaa4c323 (diff)
downloadrockbox-28d54c6016459ffe93c0be2efea7de27c38d783c.tar.gz
rockbox-28d54c6016459ffe93c0be2efea7de27c38d783c.zip
Add MPIO HD200 port - new files
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25725 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/target/coldfire/mpio/hd200/usb-hd200.c')
-rw-r--r--firmware/target/coldfire/mpio/hd200/usb-hd200.c81
1 files changed, 81 insertions, 0 deletions
diff --git a/firmware/target/coldfire/mpio/hd200/usb-hd200.c b/firmware/target/coldfire/mpio/hd200/usb-hd200.c
new file mode 100644
index 0000000000..8f348b8038
--- /dev/null
+++ b/firmware/target/coldfire/mpio/hd200/usb-hd200.c
@@ -0,0 +1,81 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id:$
+ *
+ * Copyright (C) 2010 Marcin Bukat
+ *
+ * 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "config.h"
+#include <stdbool.h>
+#include "cpu.h"
+#include "system.h"
+#include "kernel.h"
+#include "usb.h"
+
+void usb_init_device(void)
+{
+ /* GPIO42 is USB detect input
+ * but it also serves as MCLK2 for DAC
+ */
+ and_l(~(1<<4), &GPIO1_OUT);
+ or_l((1<<4)|(1<<18), &GPIO1_ENABLE); /* GPIO36 GPIO50 */
+ or_l((1<<4)|(1<<18), &GPIO1_FUNCTION);
+
+ /* GPIO22 GPIO30*/
+ /* GPIO31 has to be low to ATA work */
+ or_l((1<<22)|(1<<30), &GPIO_OUT);
+ or_l((1<<22)|(1<<30)|(1<<31), &GPIO_ENABLE);
+ or_l((1<<22)|(1<<30)|(1<<31), &GPIO_FUNCTION);
+}
+
+int usb_detect(void)
+{
+ /* GPIO42 active low*/
+ return (GPIO1_READ & (1<<10)) ? USB_EXTRACTED : USB_INSERTED;
+}
+
+void usb_enable(bool on)
+{
+
+ if(on)
+ {
+ or_l((1<<18),&GPIO1_OUT); /* GPIO50 high */
+
+ and_l(~(1<<30),&GPIO_OUT); /* GPIO30 low */
+ /* GPIO36 low delay GPIO36 high delay */
+ and_l(~(1<<4),&GPIO1_OUT);
+ or_l((1<<4),&GPIO1_OUT);
+
+ and_l(~(1<<18),&GPIO1_OUT); /* GPIO50 low */
+ sleep(HZ/5); /* delay 200 ms */
+ and_l(~(1<<22),&GPIO_OUT); /* GPIO22 low */
+ }
+ else
+ {
+ /* GPIO36 low delay GPIO36 high delay */
+ and_l(~(1<<4),&GPIO1_OUT);
+ sleep(HZ/100);
+ or_l((1<<4),&GPIO1_OUT);
+ sleep(HZ/100);
+
+ or_l((1<<22),&GPIO_OUT); /* GPIO22 high */
+ or_l((1<<30),&GPIO_OUT); /* GPIO30 high */
+
+ and_l(~(1<<4),&GPIO1_OUT); /* GPIO36 low */
+
+ //or_l((1<<18),&GPIO1_OUT); /* GPIO50 high */
+ }
+}