X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=gp2x%2Fsoc_pollux.c;h=b6ec9ab138e9fe04586a1949aeaaf3641d02b841;hb=b5bfb86438216d502f1f9ed14b923d3b0107c07d;hp=fb7e66fd0105ac44310e75f4ddff84b2d888a61a;hpb=fa8d133192876a802fbac43c0a0bfe4f5f85b682;p=libpicofe.git

diff --git a/gp2x/soc_pollux.c b/gp2x/soc_pollux.c
index fb7e66f..b6ec9ab 100644
--- a/gp2x/soc_pollux.c
+++ b/gp2x/soc_pollux.c
@@ -19,6 +19,7 @@
 static volatile unsigned short *memregs;
 static volatile unsigned long  *memregl;
 static int memdev = -1;
+static int battdev = -1;
 
 extern void *gp2x_screens[4];
 
@@ -27,6 +28,11 @@ static unsigned int fb_paddr[fb_buf_count];
 static int fb_work_buf;
 static int fbdev = -1;
 
+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 pollux_video_flip(int buf_count)
@@ -52,9 +58,30 @@ static void gp2x_video_flip2_(void)
 
 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;
@@ -68,12 +95,12 @@ static void gp2x_video_changemode_ll_(int bpp)
 			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;
@@ -110,6 +137,8 @@ static void gp2x_set_cpuclk_(unsigned int mhz)
 	char buff[24];
 	snprintf(buff, sizeof(buff), "cpuclk=%u", mhz);
 	pollux_set(memregs, buff);
+
+	cpuclk_was_changed = 1;
 }
 
 /* misc */
@@ -124,8 +153,6 @@ static void pollux_set_fromenv(const char *env_var)
 }
 
 /* RAM timings */
-static unsigned short memtimex[2];
-
 static void set_ram_timings_(void)
 {
 	pollux_set_fromenv("POLLUX_RAM_TIMINGS");
@@ -135,8 +162,8 @@ static void unset_ram_timings_(void)
 {
 	int i;
 
-	memregs[0x14802>>1] = memtimex[0];
-	memregs[0x14804>>1] = memtimex[1] | 0x8000;
+	memregs[0x14802>>1] = memtimex_old[0];
+	memregs[0x14804>>1] = memtimex_old[1] | 0x8000;
 
 	for (i = 0; i < 0x100000; i++)
 		if (!(memregs[0x14804>>1] & 0x8000))
@@ -152,6 +179,7 @@ static void set_lcd_custom_rate_(int is_pal)
 
 	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)
@@ -163,6 +191,48 @@ static void set_lcd_gamma_(int g100, int A_SNs_curve)
 	/* 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;
@@ -215,8 +285,21 @@ void pollux_init(void)
 	fb_work_buf = 0;
 	g_screen_ptr = gp2x_screens[0];
 
-	memtimex[0] = memregs[0x14802>>1];
-	memtimex[1] = memregs[0x14804>>1];
+	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];
 
 	gp2x_video_flip = gp2x_video_flip_;
 	gp2x_video_flip2 = gp2x_video_flip2_;
@@ -233,6 +316,10 @@ 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)
@@ -240,10 +327,18 @@ 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);
+	unset_ram_timings_();
+	if (cpuclk_was_changed) {
+		memregl[0xf004>>2] = pllsetreg0;
+		memregl[0xf07c>>2] |= 0x8000;
+	}
+
 	munmap((void *)memregs, 0x20000);
 	close(memdev);
+	if (battdev >= 0)
+		close(battdev);
 }