blob: d5da77638378b2f9582c137cdaa2945cd32b2589 [file] [log] [blame]
Dave Chapman38e8fb62005-11-08 00:52:39 +00001/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2005 by Dave Chapman
11 *
12 * Based on Rockbox iriver bootloader by Linus Nielsen Feltzing
13 * and the ipodlinux bootloader by Daniel Palffy and Bernard Leach
14 *
Daniel Stenberg2acc0ac2008-06-28 18:10:04 +000015 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License
17 * as published by the Free Software Foundation; either version 2
18 * of the License, or (at your option) any later version.
Dave Chapman38e8fb62005-11-08 00:52:39 +000019 *
20 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
21 * KIND, either express or implied.
22 *
23 ****************************************************************************/
24#include "config.h"
25
26#include <stdlib.h>
27#include <stdio.h>
Dave Chapman061f3802005-11-13 20:59:30 +000028#include <string.h>
Linus Nielsen Feltzingf3f0d1c2007-01-16 23:12:02 +000029#include <stdarg.h>
Dave Chapman38e8fb62005-11-08 00:52:39 +000030#include "cpu.h"
31#include "system.h"
32#include "lcd.h"
33#include "kernel.h"
34#include "thread.h"
35#include "ata.h"
36#include "fat.h"
37#include "disk.h"
38#include "font.h"
39#include "adc.h"
Jens Arnoldafd51742007-11-21 21:28:46 +000040#include "backlight.h"
Dave Chapman38e8fb62005-11-08 00:52:39 +000041#include "panic.h"
42#include "power.h"
43#include "file.h"
Barry Wardell84b509d2007-01-28 18:42:11 +000044#include "common.h"
Dave Chapmanebc076b2007-07-25 13:12:38 +000045#include "hwcompat.h"
Dave Chapman38e8fb62005-11-08 00:52:39 +000046
Dave Chapman8adc81d2006-02-21 21:13:03 +000047#define XSC(X) #X
48#define SC(X) XSC(X)
49
Barry Wardell84b509d2007-01-28 18:42:11 +000050/* Maximum allowed firmware image size. The largest known current
51 (December 2006) firmware is about 7.5MB (Apple's firmware for the ipod video)
52 so we set this to 8MB. */
53#define MAX_LOADSIZE (8*1024*1024)
54
55/* A buffer to load the Linux kernel or Rockbox into */
56unsigned char *loadbuffer = (unsigned char *)DRAM_START;
57
58/* Bootloader version */
59char version[] = APPSVERSION;
60
Dave Chapman061f3802005-11-13 20:59:30 +000061#define BUTTON_LEFT 1
62#define BUTTON_MENU 2
63#define BUTTON_RIGHT 3
64#define BUTTON_PLAY 4
Dave Chapmanfa743562006-02-05 19:05:55 +000065#define BUTTON_HOLD 5
Dave Chapman061f3802005-11-13 20:59:30 +000066
Frank Dischner5d9eccd2006-04-19 18:06:56 +000067#if CONFIG_KEYPAD == IPOD_4G_PAD && !defined(IPOD_MINI)
Dave Chapman38e8fb62005-11-08 00:52:39 +000068/* check if number of seconds has past */
69int timer_check(int clock_start, unsigned int usecs)
70{
Dave Chapmanfa743562006-02-05 19:05:55 +000071 if ((USEC_TIMER - clock_start) >= usecs) {
Dave Chapman38e8fb62005-11-08 00:52:39 +000072 return 1;
73 } else {
74 return 0;
75 }
76}
77
Dave Chapman061f3802005-11-13 20:59:30 +000078static void ser_opto_keypad_cfg(int val)
79{
80 int start_time;
81
Barry Wardell8b061252007-03-03 17:25:20 +000082 GPIOB_ENABLE &=~ 0x80;
Dave Chapman061f3802005-11-13 20:59:30 +000083
84 outl(inl(0x7000c104) | 0xc000000, 0x7000c104);
85 outl(val, 0x7000c120);
86 outl(inl(0x7000c100) | 0x80000000, 0x7000c100);
87
Barry Wardell8b061252007-03-03 17:25:20 +000088 GPIOB_OUTPUT_VAL &=~ 0x10;
89 GPIOB_OUTPUT_EN |= 0x10;
Dave Chapman061f3802005-11-13 20:59:30 +000090
Dave Chapmanfa743562006-02-05 19:05:55 +000091 start_time = USEC_TIMER;
Dave Chapman061f3802005-11-13 20:59:30 +000092 do {
93 if ((inl(0x7000c104) & 0x80000000) == 0) {
94 break;
95 }
96 } while (timer_check(start_time, 1500) != 0);
97
98 outl(inl(0x7000c100) & ~0x80000000, 0x7000c100);
99
Barry Wardell8b061252007-03-03 17:25:20 +0000100 GPIOB_ENABLE |= 0x80;
101 GPIOB_OUTPUT_VAL |= 0x10;
102 GPIOB_OUTPUT_EN &=~0x10;
Dave Chapman061f3802005-11-13 20:59:30 +0000103
104 outl(inl(0x7000c104) | 0xc000000, 0x7000c104);
105 outl(inl(0x7000c100) | 0x60000000, 0x7000c100);
106}
107
108int opto_keypad_read(void)
109{
110 int loop_cnt, had_io = 0;
111
112 for (loop_cnt = 5; loop_cnt != 0;)
113 {
114 int key_pressed = 0;
115 int start_time;
116 unsigned int key_pad_val;
117
118 ser_opto_keypad_cfg(0x8000023a);
119
Dave Chapmanfa743562006-02-05 19:05:55 +0000120 start_time = USEC_TIMER;
Dave Chapman061f3802005-11-13 20:59:30 +0000121 do {
122 if (inl(0x7000c104) & 0x4000000) {
123 had_io = 1;
124 break;
125 }
126
127 if (had_io != 0) {
128 break;
129 }
130 } while (timer_check(start_time, 1500) != 0);
131
132 key_pad_val = inl(0x7000c140);
133 if ((key_pad_val & ~0x7fff0000) != 0x8000023a) {
134 loop_cnt--;
135 } else {
136 key_pad_val = (key_pad_val << 11) >> 27;
137 key_pressed = 1;
138 }
139
140 outl(inl(0x7000c100) | 0x60000000, 0x7000c100);
141 outl(inl(0x7000c104) | 0xc000000, 0x7000c104);
142
143 if (key_pressed != 0) {
144 return key_pad_val ^ 0x1f;
145 }
146 }
147
148 return 0;
149}
Dave Chapmanfa743562006-02-05 19:05:55 +0000150#endif
Dave Chapman061f3802005-11-13 20:59:30 +0000151
152static int key_pressed(void)
153{
154 unsigned char state;
155
Dave Chapmanfa743562006-02-05 19:05:55 +0000156#if CONFIG_KEYPAD == IPOD_4G_PAD
Jens Arnold7f880882006-04-02 00:20:11 +0000157#ifdef IPOD_MINI /* mini 1G only */
Dave Chapman28507912006-02-27 12:35:05 +0000158 state = GPIOA_INPUT_VAL & 0x3f;
Frank Dischner5d9eccd2006-04-19 18:06:56 +0000159 if ((state & 0x10) == 0) return BUTTON_LEFT;
160 if ((state & 0x2) == 0) return BUTTON_MENU;
161 if ((state & 0x4) == 0) return BUTTON_PLAY;
162 if ((state & 0x8) == 0) return BUTTON_RIGHT;
Dave Chapman28507912006-02-27 12:35:05 +0000163#else
Dave Chapman061f3802005-11-13 20:59:30 +0000164 state = opto_keypad_read();
165 if ((state & 0x4) == 0) return BUTTON_LEFT;
166 if ((state & 0x10) == 0) return BUTTON_MENU;
167 if ((state & 0x8) == 0) return BUTTON_PLAY;
168 if ((state & 0x2) == 0) return BUTTON_RIGHT;
Frank Dischner5d9eccd2006-04-19 18:06:56 +0000169#endif
Jens Arnold90eacb22007-07-27 07:32:55 +0000170#elif (CONFIG_KEYPAD == IPOD_3G_PAD) || (CONFIG_KEYPAD == IPOD_1G2G_PAD)
171 state = GPIOA_INPUT_VAL;
Dave Chapmanfa743562006-02-05 19:05:55 +0000172 if ((state & 0x08) == 0) return BUTTON_LEFT;
173 if ((state & 0x10) == 0) return BUTTON_MENU;
174 if ((state & 0x04) == 0) return BUTTON_PLAY;
175 if ((state & 0x01) == 0) return BUTTON_RIGHT;
176#endif
Dave Chapman061f3802005-11-13 20:59:30 +0000177 return 0;
178}
179
Dave Chapman02aeacb2006-12-17 00:32:54 +0000180bool button_hold(void)
181{
Jens Arnold90eacb22007-07-27 07:32:55 +0000182#if CONFIG_KEYPAD == IPOD_1G2G_PAD
183 return (GPIOA_INPUT_VAL & 0x20);
184#else
185 return !(GPIOA_INPUT_VAL & 0x20);
186#endif
Dave Chapman02aeacb2006-12-17 00:32:54 +0000187}
188
Dave Chapman02aeacb2006-12-17 00:32:54 +0000189void fatal_error(void)
190{
Barry Wardell84b509d2007-01-28 18:42:11 +0000191 extern int line;
Dave Chapman02aeacb2006-12-17 00:32:54 +0000192 bool holdstatus=false;
193
Dave Chapman0025a972006-12-17 10:23:51 +0000194 /* System font is 6 pixels wide */
Jens Arnold90eacb22007-07-27 07:32:55 +0000195#if defined(IPOD_1G2G) || defined(IPOD_3G)
196 printf("Hold MENU+PLAY to");
197 printf("reboot then REW+FF");
198 printf("for disk mode");
199#elif LCD_WIDTH >= (30*6)
Dave Chapmanc5302d52007-05-23 07:18:40 +0000200 printf("Hold MENU+SELECT to reboot");
Linus Nielsen Feltzingf3f0d1c2007-01-16 23:12:02 +0000201 printf("then SELECT+PLAY for disk mode");
Dave Chapman0025a972006-12-17 10:23:51 +0000202#else
Dave Chapmanc5302d52007-05-23 07:18:40 +0000203 printf("Hold MENU+SELECT to");
Linus Nielsen Feltzingf3f0d1c2007-01-16 23:12:02 +0000204 printf("reboot then SELECT+PLAY");
205 printf("for disk mode");
Dave Chapman0025a972006-12-17 10:23:51 +0000206#endif
Dave Chapman7d79db22007-05-22 19:05:14 +0000207 lcd_update();
Dave Chapman02aeacb2006-12-17 00:32:54 +0000208
209 while (1) {
210 if (button_hold() != holdstatus) {
211 if (button_hold()) {
212 holdstatus=true;
213 lcd_puts(0, line, "Hold switch on!");
214 } else {
215 holdstatus=false;
216 lcd_puts(0, line, " ");
217 }
218 lcd_update();
219 }
220 udelay(100000); /* 100ms */
221 }
222
223}
224
225
Dave Chapman38e8fb62005-11-08 00:52:39 +0000226void* main(void)
227{
228 char buf[256];
Dave Chapman38e8fb62005-11-08 00:52:39 +0000229 int i;
Dave Chapman4d25bff2007-03-05 23:56:28 +0000230 int btn;
Dave Chapman38e8fb62005-11-08 00:52:39 +0000231 int rc;
Dave Chapman02aeacb2006-12-17 00:32:54 +0000232 bool haveretailos;
233 bool button_was_held;
Dave Chapman38e8fb62005-11-08 00:52:39 +0000234 struct partinfo* pinfo;
235 unsigned short* identify_info;
236
Dave Chapman02aeacb2006-12-17 00:32:54 +0000237 /* Check the button hold status as soon as possible - to
238 give the user maximum chance to turn it off in order to
239 reset the settings in rockbox. */
240 button_was_held = button_hold();
241
Dave Chapman38e8fb62005-11-08 00:52:39 +0000242 system_init();
243 kernel_init();
Jens Arnoldafd51742007-11-21 21:28:46 +0000244
245#ifndef HAVE_BACKLIGHT_INVERSION
246 backlight_init(); /* Turns on the backlight */
247#endif
248
Dave Chapman38e8fb62005-11-08 00:52:39 +0000249 lcd_init();
250 font_init();
251
Dave Chapman02aeacb2006-12-17 00:32:54 +0000252#ifdef HAVE_LCD_COLOR
253 lcd_set_foreground(LCD_WHITE);
254 lcd_set_background(LCD_BLACK);
255 lcd_clear_display();
256#endif
257
Dave Chapman38e8fb62005-11-08 00:52:39 +0000258#if 0
259 /* ADC and button drivers are not yet implemented */
260 adc_init();
261 button_init();
262#endif
263
Dave Chapman4d25bff2007-03-05 23:56:28 +0000264 btn=key_pressed();
265
266 /* Enable bootloader messages */
267 if (btn==BUTTON_RIGHT)
268 verbose = true;
Dave Chapman38e8fb62005-11-08 00:52:39 +0000269
270 lcd_setfont(FONT_SYSFIXED);
271
Linus Nielsen Feltzingf3f0d1c2007-01-16 23:12:02 +0000272 printf("Rockbox boot loader");
Dave Chapmandc1fc3c2007-03-06 09:49:09 +0000273 printf("Version: %s", version);
Linus Nielsen Feltzingf3f0d1c2007-01-16 23:12:02 +0000274 printf("IPOD version: 0x%08x", IPOD_HW_REVISION);
Dave Chapman38e8fb62005-11-08 00:52:39 +0000275
276 i=ata_init();
277 if (i==0) {
278 identify_info=ata_get_identify();
279 /* Show model */
280 for (i=0; i < 20; i++) {
281 ((unsigned short*)buf)[i]=htobe16(identify_info[i+27]);
282 }
283 buf[40]=0;
284 for (i=39; i && buf[i]==' '; i--) {
285 buf[i]=0;
286 }
Linus Nielsen Feltzingf3f0d1c2007-01-16 23:12:02 +0000287 printf(buf);
Dave Chapman38e8fb62005-11-08 00:52:39 +0000288 } else {
Linus Nielsen Feltzingf3f0d1c2007-01-16 23:12:02 +0000289 printf("ATA: %d", i);
Dave Chapman38e8fb62005-11-08 00:52:39 +0000290 }
291
292 disk_init();
293 rc = disk_mount_all();
294 if (rc<=0)
295 {
Linus Nielsen Feltzingf3f0d1c2007-01-16 23:12:02 +0000296 printf("No partition found");
Dave Chapman02aeacb2006-12-17 00:32:54 +0000297 fatal_error();
Dave Chapman38e8fb62005-11-08 00:52:39 +0000298 }
299
300 pinfo = disk_partinfo(1);
Frank Gevaertsac355de2008-11-21 15:20:25 +0000301 printf("Partition 1: 0x%02x %ld sectors",
302 pinfo->type, pinfo->size);
Dave Chapman38e8fb62005-11-08 00:52:39 +0000303
Dave Chapman4d25bff2007-03-05 23:56:28 +0000304 if (button_was_held || (btn==BUTTON_MENU)) {
Barry Wardell84b509d2007-01-28 18:42:11 +0000305 /* If either the hold switch was on, or the Menu button was held, then
306 try the Apple firmware */
Dave Chapman02aeacb2006-12-17 00:32:54 +0000307
Barry Wardell84b509d2007-01-28 18:42:11 +0000308 printf("Loading original firmware...");
309
310 /* First try an apple_os.ipod file on the FAT32 partition
311 (either in .rockbox or the root)
312 */
313
314 rc=load_firmware(loadbuffer, "apple_os.ipod", MAX_LOADSIZE);
315
Dave Chapmana02c4262007-03-06 14:05:43 +0000316 if (rc == EOK) {
317 printf("apple_os.ipod loaded.");
318 return (void*)DRAM_START;
319 } else if (rc == EFILE_NOT_FOUND) {
Barry Wardell84b509d2007-01-28 18:42:11 +0000320 /* If apple_os.ipod doesn't exist, then check if there is an Apple
321 firmware image in RAM */
322 haveretailos = (memcmp((void*)(DRAM_START+0x20),"portalplayer",12)==0);
323 if (haveretailos) {
324 /* We have a copy of the retailos in RAM, lets just run it. */
Dave Chapman02aeacb2006-12-17 00:32:54 +0000325 return (void*)DRAM_START;
326 }
Barry Wardell84b509d2007-01-28 18:42:11 +0000327 } else if (rc < EFILE_NOT_FOUND) {
328 printf("Error!");
329 printf("Can't load apple_os.ipod:");
330 printf(strerror(rc));
Dave Chapman02aeacb2006-12-17 00:32:54 +0000331 }
Barry Wardell84b509d2007-01-28 18:42:11 +0000332
333 /* Everything failed - just loop forever */
334 printf("No RetailOS detected");
335
Dave Chapman4d25bff2007-03-05 23:56:28 +0000336 } else if (btn==BUTTON_PLAY) {
Barry Wardell84b509d2007-01-28 18:42:11 +0000337 printf("Loading Linux...");
338 rc=load_raw_firmware(loadbuffer, "/linux.bin", MAX_LOADSIZE);
339 if (rc < EOK) {
340 printf("Error!");
341 printf("Can't load linux.bin:");
342 printf(strerror(rc));
343 } else {
344 return (void*)DRAM_START;
345 }
346 } else {
347 printf("Loading Rockbox...");
348 rc=load_firmware(loadbuffer, BOOTFILE, MAX_LOADSIZE);
349 if (rc < EOK) {
350 printf("Error!");
Björn Stenbergb69be102008-11-23 22:07:48 +0000351 printf("Can't load " BOOTFILE ": ");
Barry Wardell84b509d2007-01-28 18:42:11 +0000352 printf(strerror(rc));
353 } else {
354 printf("Rockbox loaded.");
355 return (void*)DRAM_START;
Dave Chapman061f3802005-11-13 20:59:30 +0000356 }
357 }
Barry Wardell84b509d2007-01-28 18:42:11 +0000358
359 /* If we get to here, then we haven't been able to load any firmware */
Dave Chapman02aeacb2006-12-17 00:32:54 +0000360 fatal_error();
Barry Wardell84b509d2007-01-28 18:42:11 +0000361
Dave Chapman02aeacb2006-12-17 00:32:54 +0000362 /* We never get here, but keep gcc happy */
363 return (void*)0;
Dave Chapman38e8fb62005-11-08 00:52:39 +0000364}