X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=platform%2Fgp2x%2Fsoc_pollux.c;h=64971a2c80bdd767909395401ceca4585d997f26;hb=cc41eb4fa36c1ebe724efd4c81962cbc9046ac57;hp=fb7e66fd0105ac44310e75f4ddff84b2d888a61a;hpb=ee2a3bdfa5a969ea9446b2d08748f16e29bbd4d5;p=picodrive.git

diff --git a/platform/gp2x/soc_pollux.c b/platform/gp2x/soc_pollux.c
index fb7e66f..64971a2 100644
--- a/platform/gp2x/soc_pollux.c
+++ b/platform/gp2x/soc_pollux.c
@@ -27,6 +27,11 @@ 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 +57,30 @@ 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 +94,12 @@ 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 +136,8 @@ 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 +152,6 @@ 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 +161,8 @@ 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 +178,7 @@ 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)
@@ -215,8 +242,9 @@ void pollux_init(void)
 	fb_work_buf = 0;
 	g_screen_ptr = gp2x_screens[0];
 
-	memtimex[0] = memregs[0x14802>>1];
-	memtimex[1] = memregs[0x14804>>1];
+	pllsetreg0 = memregl[0xf004];
+	memtimex_old[0] = memregs[0x14802>>1];
+	memtimex_old[1] = memregs[0x14804>>1];
 
 	gp2x_video_flip = gp2x_video_flip_;
 	gp2x_video_flip2 = gp2x_video_flip2_;
@@ -240,9 +268,15 @@ 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);
 }