update license in source code itself

[libpicofe.git] / gp2x / soc_mmsp2.c

diff --git a/gp2x/soc_mmsp2.c b/gp2x/soc_mmsp2.c
index c136287..ee933d4 100644 (file)
--- a/gp2x/soc_mmsp2.c
+++ b/gp2x/soc_mmsp2.c
@@ -1,3 +1,14 @@
+/*
+ * (C) Gražvydas "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>
@@ -11,8 +22,9 @@
 #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;
@@ -33,8 +45,12 @@ 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 */
 static void gp2x_video_flip_(void)
@@ -166,11 +182,11 @@ static void gp2x_set_cpuclk_(unsigned int mhz)
        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) \
@@ -214,8 +230,8 @@ static void set_ram_timings_(void)
 
 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");
 }
 
@@ -344,8 +360,14 @@ static void set_lcd_gamma_(int g100, int A_SNs_curve)
                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. */
@@ -454,12 +476,13 @@ void mmsp2_init(void)
 
        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);
@@ -495,6 +518,10 @@ void mmsp2_init(void)
 
        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)
@@ -503,13 +530,20 @@ 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_();
+       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);