static volatile unsigned short *memregs;
static volatile unsigned long *memregl;
static int memdev = -1;
+static int battdev = -1;
extern void *gp2x_screens[4];
static char cpuclk_was_changed = 0;
static unsigned short memtimex_old[2];
static unsigned int pllsetreg0;
+static int last_pal_setting = 0;
/* video stuff */
static void gp2x_video_changemode_ll_(int bpp)
{
+ static int prev_bpp = 0;
int code = 0, bytes = 2;
+ int rot_cmd[2] = { 0, 0 };
unsigned int r;
- switch (bpp)
+ int ret;
+
+ if (bpp == prev_bpp)
+ return;
+ prev_bpp = bpp;
+
+ printf("changemode: %dbpp rot=%d\n", abs(bpp), bpp < 0);
+
+ /* negative bpp means rotated mode */
+ rot_cmd[0] = (bpp < 0) ? 6 : 5;
+ ret = ioctl(fbdev, _IOW('D', 90, int[2]), rot_cmd);
+ if (ret < 0)
+ perror("rot ioctl failed");
+ memregl[0x4004>>2] = (bpp < 0) ? 0x013f00ef : 0x00ef013f;
+ memregl[0x4000>>2] |= 1 << 3;
+
+ /* the above ioctl resets LCD timings, so set them here */
+ set_lcd_custom_rate(last_pal_setting);
+
+ switch (abs(bpp))
{
case 8:
code = 0x443a;
break;
default:
- printf("unhandled bpp request: %d\n", bpp);
+ printf("unhandled bpp request: %d\n", abs(bpp));
return;
}
memregl[0x405c>>2] = bytes;
- memregl[0x4060>>2] = bytes * 320;
+ memregl[0x4060>>2] = bytes * (bpp < 0 ? 240 : 320);
r = memregl[0x4058>>2];
r = (r & 0xffff) | (code << 16) | 0x10;
snprintf(buff, sizeof(buff), "POLLUX_LCD_TIMINGS_%s", is_pal ? "PAL" : "NTSC");
pollux_set_fromenv(buff);
+ last_pal_setting = is_pal;
}
static void unset_lcd_custom_rate_(void)
/* hm, the LCD possibly can do it (but not POLLUX) */
}
+static int gp2x_read_battery_(void)
+{
+ unsigned short magic_val = 0;
+
+ if (battdev < 0)
+ return -1;
+ if (read(battdev, &magic_val, sizeof(magic_val)) != sizeof(magic_val))
+ return -1;
+ switch (magic_val) {
+ default:
+ case 1: return 100;
+ case 2: return 66;
+ case 3: return 40;
+ case 4: return 0;
+ }
+}
+
+#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;
fb_work_buf = 0;
g_screen_ptr = gp2x_screens[0];
- pllsetreg0 = memregl[0xf004];
+ battdev = open("/dev/pollux_batt", O_RDONLY);
+ 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];
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)
/* switch to default fb mem, turn portrait off */
memregl[0x406C>>2] = fb_paddr[0];
memregl[0x4058>>2] |= 0x10;
-// wiz_lcd_set_portrait(0);
close(fbdev);
gp2x_video_changemode_ll_(16);
munmap((void *)memregs, 0x20000);
close(memdev);
+ if (battdev >= 0)
+ close(battdev);
}