+/*
+ * (C) GraÅžvydas "notaz" Ignotas, 2006-2012
+ *
+ * This work is licensed under the terms of any of these licenses
+ * (at your option):
+ * - GNU GPL, version 2 or later.
+ * - GNU LGPL, version 2.1 or later.
+ * - MAME license.
+ * See the COPYING file in the top-level directory.
+ */
+
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "soc.h"
#include "soc_mmsp2.h"
#include "plat_gp2x.h"
-#include "../common/emu.h"
-#include "../common/arm_utils.h"
+#include "../emu.h"
+#include "../plat.h"
+#include "../arm_utils.h"
#include "940ctl.h"
volatile unsigned short *gp2x_memregs;
extern void *gp2x_screens[4];
static int screensel = 0;
-int memdev = 0; /* used by code940 */
+int memdev = -1; /* used by code940 */
static int touchdev = -1;
static int touchcal[7] = { 6203, 0, -1501397, 0, -4200, 16132680, 65536 };
static const int gp2x_screenaddrs[4] = { FRAMEBUFF_ADDR0, FRAMEBUFF_ADDR1, FRAMEBUFF_ADDR2, FRAMEBUFF_ADDR3 };
static int gp2x_screenaddrs_use[4];
-static unsigned short gp2x_screenaddr_old[4];
+static char gamma_was_changed = 0;
+static char cpuclk_was_changed = 0;
+static unsigned short gp2x_screenaddr_old[4];
+static unsigned short memtimex_old[2];
+static unsigned short reg0910;
/* video stuff */
-void gp2x_video_flip(void)
+static void gp2x_video_flip_(void)
{
unsigned short lsw = (unsigned short) gp2x_screenaddrs_use[screensel&3];
unsigned short msw = (unsigned short)(gp2x_screenaddrs_use[screensel&3] >> 16);
}
/* doulblebuffered flip */
-void gp2x_video_flip2(void)
+static void gp2x_video_flip2_(void)
{
unsigned short msw = (unsigned short)(gp2x_screenaddrs_use[screensel&1] >> 16);
g_screen_ptr = gp2x_screens[++screensel&1];
}
-void gp2x_video_changemode_ll(int bpp)
+static void gp2x_video_changemode_ll_(int bpp)
{
gp2x_memregs[0x28DA>>1] = (((bpp+1)/8)<<9)|0xAB; /*8/15/16/24bpp...*/
gp2x_memregs[0x290C>>1] = 320*((bpp+1)/8); /*line width in bytes*/
}
-void gp2x_video_setpalette(int *pal, int len)
+static void gp2x_video_setpalette_(int *pal, int len)
{
unsigned short *g = (unsigned short *)pal;
volatile unsigned short *memreg = &gp2x_memregs[0x295A>>1];
*memreg = *g++;
}
-// TV Compatible function //
-void gp2x_video_RGB_setscaling(int ln_offs, int W, int H)
+static void gp2x_video_RGB_setscaling_(int ln_offs, int W, int H)
{
float escalaw, escalah;
int bpp = (gp2x_memregs[0x28DA>>1]>>9)&0x3;
escalaw = 1024.0; // RGB Horiz LCD
escalah = 320.0; // RGB Vert LCD
- if(gp2x_memregs[0x2800>>1]&0x100) //TV-Out
+ if (gp2x_memregs[0x2800>>1]&0x100) //TV-Out
{
escalaw=489.0; // RGB Horiz TV (PAL, NTSC)
if (gp2x_memregs[0x2818>>1] == 287) //PAL
// scale horizontal
scalw = (unsigned short)((float)escalaw *(W/320.0));
- /* if there is no horizontal scaling, vertical doesn't work. Here is a nasty wrokaround... */
+ /* if there is no horizontal scaling, vertical doesn't work.
+ * Here is a nasty wrokaround... */
if (H != 240 && W == 320) scalw--;
gp2x_memregs[0x2906>>1]=scalw;
// scale vertical
gp2x_memregl[0x2908>>2]=(unsigned long)((float)escalah *bpp *(H/240.0));
}
-void gp2x_video_wait_vsync(void)
+static void gp2x_video_wait_vsync_(void)
{
unsigned short v = gp2x_memregs[0x1182>>1];
while (!((v ^ gp2x_memregs[0x1182>>1]) & 0x10))
#define SYS_CLK_FREQ 7372800
-void gp2x_set_cpuclk(unsigned int mhz)
+static void gp2x_set_cpuclk_(unsigned int mhz)
{
unsigned int mdiv, pdiv, sdiv = 0;
unsigned int v;
for (i = 0; i < 10000; i++)
if (!(gp2x_memregs[0x902>>1] & 1))
break;
+
+ cpuclk_was_changed = 1;
}
/* RAM timings */
-static unsigned short memtimex[2];
-
#define TIMING_CHECK(t, adj, mask) \
t += adj; \
if (t & ~mask) \
goto bad
-void set_ram_timings(int tCAS, int tRC, int tRAS, int tWR, int tMRD, int tRFC, int tRP, int tRCD)
+static void set_ram_timing_vals(int tCAS, int tRC, int tRAS, int tWR, int tMRD, int tRFC, int tRP, int tRCD)
{
int i;
TIMING_CHECK(tCAS, -2, 0x1);
fprintf(stderr, "RAM timings invalid.\n");
}
-void unset_ram_timings(void)
+static void set_ram_timings_(void)
+{
+ /* craigix: --cas 2 --trc 6 --tras 4 --twr 1 --tmrd 1 --trfc 1 --trp 2 --trcd 2 */
+ set_ram_timing_vals(2, 6, 4, 1, 1, 1, 2, 2);
+}
+
+static void unset_ram_timings_(void)
{
- gp2x_memregs[0x3802>>1] = memtimex[0];
- gp2x_memregs[0x3804>>1] = memtimex[1] | 0x8000;
+ gp2x_memregs[0x3802>>1] = memtimex_old[0];
+ gp2x_memregs[0x3804>>1] = memtimex_old[1] | 0x8000;
printf("RAM timings reset to startup values.\n");
}
}
}
-void set_lcd_custom_rate(int is_pal)
+static void set_lcd_custom_rate_(int is_pal)
{
if (gp2x_memregs[0x2800>>1] & 0x100) // tv-out
return;
printf("done.\n");
}
-void unset_lcd_custom_rate(void)
+static void unset_lcd_custom_rate_(void)
{
printf("reset to prev LCD refresh.\n");
set_reg_setting(lcd_rate_defaults);
}
-void set_lcd_gamma(int g100, int A_SNs_curve)
+static void set_lcd_gamma_(int g100, int A_SNs_curve)
{
float gamma = (float) g100 / 100;
int i;
gp2x_memregs[0x295E>>1]= s;
gp2x_memregs[0x295E>>1]= g;
}
+
+ gamma_was_changed = 1;
}
+static int gp2x_read_battery_(void)
+{
+ return -1; /* TODO? */
+}
/* these are not quite MMSP2 related,
* more to GP2X F100/F200 consoles themselves. */
memcpy(gp2x_screenaddrs_use, gp2x_screenaddrs, sizeof(gp2x_screenaddrs));
- /* default LCD refresh */
+ /* save startup values: LCD refresh */
get_reg_setting(lcd_rate_defaults);
- /* RAM timings */
- memtimex[0] = gp2x_memregs[0x3802>>1];
- memtimex[1] = gp2x_memregs[0x3804>>1];
+ /* CPU and RAM timings */
+ reg0910 = gp2x_memregs[0x0910>>1];
+ memtimex_old[0] = gp2x_memregs[0x3802>>1];
+ memtimex_old[1] = gp2x_memregs[0x3804>>1];
/* touchscreen */
touchdev = open("/dev/touchscreen/wm97xx", O_RDONLY);
/* code940 portion */
sharedmem940_init();
+
+ gp2x_video_flip = gp2x_video_flip_;
+ gp2x_video_flip2 = gp2x_video_flip2_;
+ gp2x_video_changemode_ll = gp2x_video_changemode_ll_;
+ gp2x_video_setpalette = gp2x_video_setpalette_;
+ gp2x_video_RGB_setscaling = gp2x_video_RGB_setscaling_;
+ gp2x_video_wait_vsync = gp2x_video_wait_vsync_;
+
+ gp2x_set_cpuclk = gp2x_set_cpuclk_;
+
+ set_lcd_custom_rate = set_lcd_custom_rate_;
+ unset_lcd_custom_rate = unset_lcd_custom_rate_;
+ set_lcd_gamma = set_lcd_gamma_;
+
+ set_ram_timings = set_ram_timings_;
+ unset_ram_timings = unset_ram_timings_;
+ gp2x_read_battery = gp2x_read_battery_;
+
+ gp2x_get_ticks_ms = plat_get_ticks_ms_good;
+ gp2x_get_ticks_us = plat_get_ticks_us_good;
}
void mmsp2_finish(void)
pause940(1);
sharedmem940_finish();
+ gp2x_video_RGB_setscaling_(0, 320, 240);
+ gp2x_video_changemode_ll_(16);
+
gp2x_memregs[0x290E>>1] = gp2x_screenaddr_old[0];
gp2x_memregs[0x2910>>1] = gp2x_screenaddr_old[1];
gp2x_memregs[0x2912>>1] = gp2x_screenaddr_old[2];
gp2x_memregs[0x2914>>1] = gp2x_screenaddr_old[3];
- unset_ram_timings();
- unset_lcd_custom_rate();
+ unset_lcd_custom_rate_();
+ if (gamma_was_changed)
+ set_lcd_gamma_(100, 0);
+ unset_ram_timings_();
+ if (cpuclk_was_changed)
+ gp2x_memregs[0x910>>1] = reg0910;
munmap(gp2x_screens[0], FRAMEBUFF_WHOLESIZE);
munmap((void *)gp2x_memregs, 0x10000);
notaz.gp2x.de / libpicofe.git / blobdiff