diff options
Diffstat (limited to 'firmware/target/coldfire/mpio/hd200/usb-hd200.c')
-rw-r--r-- | firmware/target/coldfire/mpio/hd200/usb-hd200.c | 81 |
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 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id:$ | ||
9 | * | ||
10 | * Copyright (C) 2010 Marcin Bukat | ||
11 | * | ||
12 | * This program is free software; you can redistribute it and/or | ||
13 | * modify it under the terms of the GNU General Public License | ||
14 | * as published by the Free Software Foundation; either version 2 | ||
15 | * of the License, or (at your option) any later version. | ||
16 | * | ||
17 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
18 | * KIND, either express or implied. | ||
19 | * | ||
20 | ****************************************************************************/ | ||
21 | #include "config.h" | ||
22 | #include <stdbool.h> | ||
23 | #include "cpu.h" | ||
24 | #include "system.h" | ||
25 | #include "kernel.h" | ||
26 | #include "usb.h" | ||
27 | |||
28 | void usb_init_device(void) | ||
29 | { | ||
30 | /* GPIO42 is USB detect input | ||
31 | * but it also serves as MCLK2 for DAC | ||
32 | */ | ||
33 | and_l(~(1<<4), &GPIO1_OUT); | ||
34 | or_l((1<<4)|(1<<18), &GPIO1_ENABLE); /* GPIO36 GPIO50 */ | ||
35 | or_l((1<<4)|(1<<18), &GPIO1_FUNCTION); | ||
36 | |||
37 | /* GPIO22 GPIO30*/ | ||
38 | /* GPIO31 has to be low to ATA work */ | ||
39 | or_l((1<<22)|(1<<30), &GPIO_OUT); | ||
40 | or_l((1<<22)|(1<<30)|(1<<31), &GPIO_ENABLE); | ||
41 | or_l((1<<22)|(1<<30)|(1<<31), &GPIO_FUNCTION); | ||
42 | } | ||
43 | |||
44 | int usb_detect(void) | ||
45 | { | ||
46 | /* GPIO42 active low*/ | ||
47 | return (GPIO1_READ & (1<<10)) ? USB_EXTRACTED : USB_INSERTED; | ||
48 | } | ||
49 | |||
50 | void usb_enable(bool on) | ||
51 | { | ||
52 | |||
53 | if(on) | ||
54 | { | ||
55 | or_l((1<<18),&GPIO1_OUT); /* GPIO50 high */ | ||
56 | |||
57 | and_l(~(1<<30),&GPIO_OUT); /* GPIO30 low */ | ||
58 | /* GPIO36 low delay GPIO36 high delay */ | ||
59 | and_l(~(1<<4),&GPIO1_OUT); | ||
60 | or_l((1<<4),&GPIO1_OUT); | ||
61 | |||
62 | and_l(~(1<<18),&GPIO1_OUT); /* GPIO50 low */ | ||
63 | sleep(HZ/5); /* delay 200 ms */ | ||
64 | and_l(~(1<<22),&GPIO_OUT); /* GPIO22 low */ | ||
65 | } | ||
66 | else | ||
67 | { | ||
68 | /* GPIO36 low delay GPIO36 high delay */ | ||
69 | and_l(~(1<<4),&GPIO1_OUT); | ||
70 | sleep(HZ/100); | ||
71 | or_l((1<<4),&GPIO1_OUT); | ||
72 | sleep(HZ/100); | ||
73 | |||
74 | or_l((1<<22),&GPIO_OUT); /* GPIO22 high */ | ||
75 | or_l((1<<30),&GPIO_OUT); /* GPIO30 high */ | ||
76 | |||
77 | and_l(~(1<<4),&GPIO1_OUT); /* GPIO36 low */ | ||
78 | |||
79 | //or_l((1<<18),&GPIO1_OUT); /* GPIO50 high */ | ||
80 | } | ||
81 | } | ||