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merge a big part of the unofficial gigabeat cvs back. Includes working bootloader and rockbox with audio.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11850 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Marcoen Hirschberg 2006-12-29 02:49:12 +00:00
parent 995a804def
commit 295367686e
31 changed files with 1506 additions and 196 deletions
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41
firmware/kernel.c
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@ -56,7 +56,7 @@ void kernel_init(void)
void sleep(int ticks)
{
#if CONFIG_CPU == S3C2440 && defined(BOOTLOADER)
int counter;
volatile int counter;
TCON &= ~(1 << 20); // stop timer 4
// TODO: this constant depends on dividers settings inherited from
// firmware. Set them explicitly somwhere.
@ -76,7 +76,7 @@ void sleep(int ticks)
void yield(void)
{
#if (CONFIG_CPU == S3C2440 || defined(ELIO_TPJ1022) && defined(BOOTLOADER))
#if ((CONFIG_CPU == S3C2440 || defined(ELIO_TPJ1022)) && defined(BOOTLOADER))
/* Some targets don't like yielding in the bootloader */
#else
switch_thread(true, NULL);
@ -560,27 +560,34 @@ void tick_start(unsigned int interval_in_ms)
#elif CONFIG_CPU == S3C2440
void tick_start(unsigned int interval_in_ms)
{
unsigned long count;
TCON &= ~(1 << 20); // stop timer 4
// TODO: this constant depends on dividers settings inherited from
// firmware. Set them explicitly somwhere.
TCNTB4 = 12193 * interval_in_ms / 1000;
TCON |= 1 << 21; // set manual bit
TCON &= ~(1 << 21); // reset manual bit
TCON |= 1 << 22; //interval mode
TCON |= (1 << 20); // start timer 4
/* period = (n + 1) / 128 , n = tick time count (1~127)*/
count = interval_in_ms / 1000 * 128 - 1;
INTMOD &= ~(1 << 14); // timer 4 to IRQ mode
INTMSK &= ~(1 << 14); // timer 4 unmask interrupts
}
if(count > 127)
void timer4(void) {
int i;
/* Run through the list of tick tasks */
for(i = 0; i < MAX_NUM_TICK_TASKS; i++)
{
panicf("Error! The tick interval is too long (%d ms)\n",
interval_in_ms);
return;
if(tick_funcs[i])
{
tick_funcs[i]();
}
}
/* Disable the tick */
TICNT &= ~(1<<7);
/* Set the count value */
TICNT |= count;
/* Start up the ticker */
TICNT |= (1<<7);
current_tick++;
/* need interrupt handler ??? */
/* following needs to be fixed. */
/*wake_up_thread();*/
}
#endif