1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Linus Nielsen Feltzing
*
* iPod driver based on code from the ipodlinux project - http://ipodlinux.org
* Adapted for Rockbox in January 2006
* Original file: podzilla/usb.c
* Copyright (C) 2005 Adam Johnston
*
* 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 "system.h"
#include "usb.h"
#include "button.h"
#include "ata.h"
#include "string.h"
#include "usb_core.h"
#include "usb_drv.h"
#if defined(IPOD_4G) || defined(IPOD_COLOR) \
|| defined(IPOD_MINI) || defined(IPOD_MINI2G)
/* GPIO D bit 3 is usb detect */
#define USB_GPIO GPIOD
#define USB_GPIO_MASK 0x08
#define USB_GPIO_VAL 0x08
#elif defined(IPOD_NANO) || defined(IPOD_VIDEO)
/* GPIO L bit 4 is usb detect */
#define USB_GPIO GPIOL
#define USB_GPIO_MASK 0x10
#define USB_GPIO_VAL 0x10
#elif defined(SANSA_C200)
/* GPIO H bit 1 is usb/charger detect */
#define USB_GPIO GPIOH
#define USB_GPIO_MASK 0x02
#define USB_GPIO_VAL 0x02
#elif defined(SANSA_E200)
/* GPIO B bit 4 is usb/charger detect */
#define USB_GPIO GPIOB
#define USB_GPIO_MASK 0x10
#define USB_GPIO_VAL 0x10
#elif defined(IRIVER_H10) || defined(IRIVER_H10_5GB) || defined(MROBE_100)
/* GPIO L bit 2 is usb detect */
#define USB_GPIO GPIOL
#define USB_GPIO_MASK 0x04
#define USB_GPIO_VAL 0x04
#elif defined(PHILIPS_SA9200)
/* GPIO B bit 6 (high) is usb bus power detect */
#define USB_GPIO GPIOB
#define USB_GPIO_MASK 0x40
#define USB_GPIO_VAL 0x40
#elif defined(PHILIPS_HDD1630) || defined(PHILIPS_HDD6330)
/* GPIO E bit 2 is usb detect */
#define USB_GPIO GPIOE
#define USB_GPIO_MASK 0x04
#define USB_GPIO_VAL 0x04
#elif defined(SAMSUNG_YH820) || defined(SAMSUNG_YH920) || defined(SAMSUNG_YH925)
/* GPIO D bit 4 is usb detect */
#define USB_GPIO GPIOD
#define USB_GPIO_MASK 0x10
#define USB_GPIO_VAL 0x10
#elif defined(TATUNG_TPJ1022)
/* GPIO ? bit ? is usb detect (dummy value)*/
#define USB_GPIO GPIOD
#define USB_GPIO_MASK 0x10
#define USB_GPIO_VAL 0x10
#elif defined(PBELL_VIBE500)
/* GPIO L bit 3 is usb detect */
#define USB_GPIO GPIOL
#define USB_GPIO_MASK 0x04
#define USB_GPIO_VAL 0x04
#else
#error No USB GPIO config specified
#endif
#define USB_GPIO_ENABLE GPIO_ENABLE(USB_GPIO)
#define USB_GPIO_OUTPUT_EN GPIO_OUTPUT_EN(USB_GPIO)
#define USB_GPIO_INPUT_VAL GPIO_INPUT_VAL(USB_GPIO)
#define USB_GPIO_INT_EN GPIO_INT_EN(USB_GPIO)
#define USB_GPIO_INT_LEV GPIO_INT_LEV(USB_GPIO)
#define USB_GPIO_INT_CLR GPIO_INT_CLR(USB_GPIO)
#define USB_GPIO_HI_INT_MASK GPIO_HI_INT_MASK(USB_GPIO)
static void usb_reset_controller(void)
{
/* enable usb module */
outl(inl(0x7000002C) | 0x3000000, 0x7000002C);
DEV_EN |= DEV_USB0;
DEV_EN |= DEV_USB1;
/* reset both USBs */
DEV_RS |= DEV_USB0;
DEV_RS &=~DEV_USB0;
DEV_RS |= DEV_USB1;
DEV_RS &=~DEV_USB1;
DEV_INIT2 |= INIT_USB;
while ((inl(0x70000028) & 0x80) == 0);
outl(inl(0x70000028) | 0x2, 0x70000028);
udelay(100000);
XMB_RAM_CFG |= 0x47A;
/* disable USB-devices until USB is detected via GPIO */
#ifndef BOOTLOADER
/* Disabling USB0 in the bootloader makes the OF not load,
Also something here breaks usb pin detect in bootloader.
leave it all enabled untill rockbox main loads */
DEV_EN &= ~DEV_USB0;
DEV_EN &= ~DEV_USB1;
DEV_INIT2 &= ~INIT_USB;
#endif
}
/* Enable raw status pin read only - not interrupt */
void usb_pin_init(void)
{
GPIO_CLEAR_BITWISE(USB_GPIO_OUTPUT_EN, USB_GPIO_MASK);
GPIO_SET_BITWISE(USB_GPIO_ENABLE, USB_GPIO_MASK);
#ifdef USB_FIREWIRE_HANDLING
/* GPIO C bit 1 is firewire detect */
GPIO_CLEAR_BITWISE(GPIOC_OUTPUT_EN, 0x02);
GPIO_SET_BITWISE(GPIOC_ENABLE, 0x02);
#endif
}
void usb_init_device(void)
{
usb_reset_controller();
/* Do one-time inits (no dependency on controller) */
usb_drv_startup();
usb_pin_init();
/* These set INT_LEV to the inserted level so it will fire if already
* inserted at the time they are enabled. */
#ifdef USB_STATUS_BY_EVENT
GPIO_CLEAR_BITWISE(USB_GPIO_INT_EN, USB_GPIO_MASK);
GPIO_WRITE_BITWISE(USB_GPIO_INT_LEV, USB_GPIO_VAL, USB_GPIO_MASK);
USB_GPIO_INT_CLR = USB_GPIO_MASK;
GPIO_SET_BITWISE(USB_GPIO_INT_EN, USB_GPIO_MASK);
CPU_HI_INT_EN = USB_GPIO_HI_INT_MASK;
#ifdef USB_FIREWIRE_HANDLING
/* GPIO C bit 1 is firewire detect */
GPIO_CLEAR_BITWISE(GPIOC_INT_EN, 0x02);
GPIO_WRITE_BITWISE(GPIOC_INT_LEV, 0x00, 0x02);
GPIOC_INT_CLR = 0x02;
GPIO_SET_BITWISE(GPIOC_INT_EN, 0x02);
CPU_HI_INT_EN = GPIO0_MASK;
#endif
CPU_INT_EN = HI_MASK;
#endif /* USB_STATUS_BY_EVENT */
}
void usb_enable(bool on)
{
if (on) {
/* if USB is detected, re-enable the USB-devices, otherwise make sure it's disabled */
DEV_EN |= DEV_USB0;
DEV_EN |= DEV_USB1;
DEV_INIT2 |= INIT_USB;
usb_core_init();
}
else {
usb_core_exit();
/* Disable USB devices */
usb_reset_controller();
}
}
void usb_attach(void)
{
usb_drv_attach();
}
bool usb_plugged(void)
{
return (USB_GPIO_INPUT_VAL & USB_GPIO_MASK) == USB_GPIO_VAL;
}
#ifdef USB_STATUS_BY_EVENT
/* Cannot always tell power pin from USB pin */
static int usb_status = USB_EXTRACTED;
static int usb_timeout_event(struct timeout *tmo)
{
usb_status_event(tmo->data == USB_GPIO_VAL ? USB_INSERTED : USB_EXTRACTED);
return 0;
}
void usb_insert_int(void)
{
static struct timeout usb_oneshot;
unsigned long val = USB_GPIO_INPUT_VAL & USB_GPIO_MASK;
usb_status = (val == USB_GPIO_VAL) ? USB_INSERTED : USB_EXTRACTED;
GPIO_WRITE_BITWISE(USB_GPIO_INT_LEV, val ^ USB_GPIO_MASK, USB_GPIO_MASK);
USB_GPIO_INT_CLR = USB_GPIO_MASK;
timeout_register(&usb_oneshot, usb_timeout_event, HZ/5, val);
}
#endif /* USB_STATUS_BY_EVENT */
#ifdef HAVE_BOOTLOADER_USB_MODE
/* Replacement function that returns all unused memory after the bootloader
* because the storage driver uses the audio buffer */
extern unsigned char freebuffer[];
extern unsigned char freebufferend[];
unsigned char *audio_get_buffer(bool talk_buf, size_t *buffer_size)
{
if (buffer_size)
*buffer_size = freebufferend - freebuffer + 1;
return freebuffer;
(void)talk_buf;
}
#endif /* HAVE_BOOTLOADER_USB_MODE */
void usb_drv_int_enable(bool enable)
{
/* enable/disable USB IRQ in CPU */
if(enable) {
CPU_INT_EN = USB_MASK;
}
else {
CPU_INT_DIS = USB_MASK;
}
}
/* detect host or charger (INSERTED or EXTRACTED) */
int usb_detect(void)
{
#ifdef USB_STATUS_BY_EVENT
return usb_status;
#else
return usb_plugged() ? USB_INSERTED : USB_EXTRACTED;
#endif
}
#ifdef USB_FIREWIRE_HANDLING
#ifdef USB_STATUS_BY_EVENT
static bool firewire_status = false;
#endif
bool firewire_detect(void)
{
#ifdef USB_STATUS_BY_EVENT
return firewire_status;
#else
/* GPIO C bit 1 is firewire detect */
/* no charger detection needed for firewire */
return (GPIOC_INPUT_VAL & 0x02) == 0x00;
#endif
}
#ifdef USB_STATUS_BY_EVENT
static int firewire_timeout_event(struct timeout *tmo)
{
if (tmo->data == 0x00)
usb_firewire_connect_event();
return 0;
}
void firewire_insert_int(void)
{
static struct timeout firewire_oneshot;
unsigned long val = GPIOC_INPUT_VAL & 0x02;
firewire_status = val == 0x00;
GPIO_WRITE_BITWISE(GPIOC_INT_LEV, val ^ 0x02, 0x02);
GPIOC_INT_CLR = 0x02;
timeout_register(&firewire_oneshot, firewire_timeout_event, HZ/5, val);
}
#endif /* USB_STATUS_BY_EVENT */
#endif /* USB_FIREWIRE_HANDLING */
|
