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move emu loop to common; redo timing; add pollux timer

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@721 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2009-07-31 22:01:03 +00:00
parent bbc8ceb9c0
commit b24e0f6ce6
13 changed files with 385 additions and 319 deletions
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36
platform/gp2x/soc_pollux.c
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@ -208,6 +208,31 @@ static int gp2x_read_battery_(void)
}
}
#define TIMER_BASE3 0x1980
#define TIMER_REG(x) memregl[(TIMER_BASE3 + x) >> 2]
unsigned int gp2x_get_ticks_us_(void)
{
TIMER_REG(0x08) = 0x4b; /* run timer, latch value */
return TIMER_REG(0);
}
unsigned int gp2x_get_ticks_ms_(void)
{
unsigned long long v64;
v64 = (unsigned long long)gp2x_get_ticks_us_() * 4195;
return v64 >> 22;
}
static void timer_cleanup(void)
{
TIMER_REG(0x40) = 0x0c; /* be sure clocks are on */
TIMER_REG(0x08) = 0x23; /* stop the timer, clear irq in case it's pending */
TIMER_REG(0x00) = 0; /* clear counter */
TIMER_REG(0x40) = 0; /* clocks off */
TIMER_REG(0x44) = 0; /* dividers back to default */
}
void pollux_init(void)
{
struct fb_fix_screeninfo fbfix;
@ -264,6 +289,14 @@ void pollux_init(void)
if (battdev < 0)
perror("Warning: could't open pollux_batt");
/* setup timer */
if (TIMER_REG(0x08) & 8)
timer_cleanup();
TIMER_REG(0x44) = 0x922; /* using PLL1, divider value 147 */
TIMER_REG(0x40) = 0x0c; /* clocks on */
TIMER_REG(0x08) = 0x6b; /* run timer, clear irq, latch value */
pllsetreg0 = memregl[0xf004>>2];
memtimex_old[0] = memregs[0x14802>>1];
memtimex_old[1] = memregs[0x14804>>1];
@ -284,6 +317,9 @@ void pollux_init(void)
set_ram_timings = set_ram_timings_;
unset_ram_timings = unset_ram_timings_;
gp2x_read_battery = gp2x_read_battery_;
gp2x_get_ticks_ms = gp2x_get_ticks_ms_;
gp2x_get_ticks_us = gp2x_get_ticks_us_;
}
void pollux_finish(void)