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iPod 3G support in Bootloader from Seven Le Mesle

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8587 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Dave Chapman 2006-02-05 19:05:55 +00:00
parent 0d10031478
commit fa74356083
2 changed files with 25 additions and 29 deletions
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2
bootloader/SOURCES
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@ -1,4 +1,4 @@
#if (CONFIG_CPU == PP5020)
#if (CONFIG_CPU == PP5002) || (CONFIG_CPU == PP5020)
ipod.c
#else
main.c

50
bootloader/ipod.c
View file

@ -39,9 +39,12 @@
#include "power.h"
#include "file.h"
#if (CONFIG_CPU == PP5020)
#define DRAM_START 0x10000000
#define IPOD_PP5020_RTC 0x60005010
#else
#define IPOD_LCD_BASE 0xc0001000
#define DRAM_START 0x28000000
#endif
#define IPOD_HW_REVISION (*((volatile unsigned long*)(0x00002084)))
/* We copy the hardware revision to the last four bytes of SDRAM and then
@ -52,6 +55,7 @@
#define BUTTON_MENU 2
#define BUTTON_RIGHT 3
#define BUTTON_PLAY 4
#define BUTTON_HOLD 5
/* Size of the buffer to store the loaded Rockbox/Linux image */
#define MAX_LOADSIZE (4*1024*1024)
@ -96,35 +100,17 @@ static void memmove16(void *dest, const void *src, unsigned count)
}
}
/* get current usec counter */
int timer_get_current(void)
{
return inl(IPOD_PP5020_RTC);
}
#if CONFIG_KEYPAD == IPOD_4G_PAD
/* check if number of seconds has past */
int timer_check(int clock_start, unsigned int usecs)
{
if ((inl(IPOD_PP5020_RTC) - clock_start) >= usecs) {
if ((USEC_TIMER - clock_start) >= usecs) {
return 1;
} else {
return 0;
}
}
/* This isn't a sleep, but let's call it that. */
int usleep(unsigned int usecs)
{
unsigned int start = inl(IPOD_PP5020_RTC);
while ((inl(IPOD_PP5020_RTC) - start) < usecs) {
// empty
}
return 0;
}
static void ser_opto_keypad_cfg(int val)
{
int start_time;
@ -138,7 +124,7 @@ static void ser_opto_keypad_cfg(int val)
outl(inl(0x6000d024) & ~0x10, 0x6000d024);
outl(inl(0x6000d014) | 0x10, 0x6000d014);
start_time = timer_get_current();
start_time = USEC_TIMER;
do {
if ((inl(0x7000c104) & 0x80000000) == 0) {
break;
@ -167,7 +153,7 @@ int opto_keypad_read(void)
ser_opto_keypad_cfg(0x8000023a);
start_time = timer_get_current();
start_time = USEC_TIMER;
do {
if (inl(0x7000c104) & 0x4000000) {
had_io = 1;
@ -197,16 +183,26 @@ int opto_keypad_read(void)
return 0;
}
#endif
static int key_pressed(void)
{
unsigned char state;
#if CONFIG_KEYPAD == IPOD_4G_PAD
state = opto_keypad_read();
if ((state & 0x4) == 0) return BUTTON_LEFT;
if ((state & 0x10) == 0) return BUTTON_MENU;
if ((state & 0x8) == 0) return BUTTON_PLAY;
if ((state & 0x2) == 0) return BUTTON_RIGHT;
#elif CONFIG_KEYPAD == IPOD_3G_PAD
state = inb(0xcf000030);
if (((state & 0x20) == 0)) return BUTTON_HOLD; /* hold on */
if ((state & 0x08) == 0) return BUTTON_LEFT;
if ((state & 0x10) == 0) return BUTTON_MENU;
if ((state & 0x04) == 0) return BUTTON_PLAY;
if ((state & 0x01) == 0) return BUTTON_RIGHT;
#endif
return 0;
}
@ -336,7 +332,8 @@ void* main(void)
/* set port L07 on */
outl(((0x100 | 1) << 7), 0x6000d12c);
#elif CONFIG_BACKLIGHT==BL_IPOD3G
outl(inl(IPOD_LCD_BASE) | 0x2, IPOD_LCD_BASE);
#endif
TMP_IPOD_HW_REVISION = IPOD_HW_REVISION;
@ -441,12 +438,11 @@ void* main(void)
}
/* If everything else failed, try the original firmware */
lcd_puts(0, line, "Loading original firmware...");
lcd_update();
/* Pause for 5 seconds so we can see what's happened */
// usleep(5000000);
// udelay(5000000);
entry = tblp->addr + tblp->entryOffset;
if (imageno || ((int)tblp->addr & 0xffffff) != 0) {