+/*
+ * (C) GraÅžvydas "notaz" Ignotas, 2009-2010
+ *
+ * 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 <string.h>
#include <sys/types.h>
#include "soc.h"
-void (*gp2x_video_flip)(void);
-void (*gp2x_video_flip2)(void);
-void (*gp2x_video_changemode_ll)(int bpp);
-void (*gp2x_video_setpalette)(int *pal, int len);
-void (*gp2x_video_RGB_setscaling)(int ln_offs, int W, int H);
-void (*gp2x_video_wait_vsync)(void);
-
-void (*gp2x_set_cpuclk)(unsigned int mhz);
-
-void (*set_lcd_custom_rate)(int is_pal);
-void (*unset_lcd_custom_rate)(void);
-void (*set_lcd_gamma)(int g100, int A_SNs_curve);
-
-void (*set_ram_timings)(void);
-void (*unset_ram_timings)(void);
-int (*gp2x_read_battery)(void);
+volatile unsigned short *memregs;
+volatile unsigned int *memregl;
+int memdev = -1;
unsigned int (*gp2x_get_ticks_ms)(void);
unsigned int (*gp2x_get_ticks_us)(void);
-
gp2x_soc_t soc_detect(void)
{
volatile unsigned short *memregs;
volatile unsigned int *memregl;
- static gp2x_soc_t ret = -1;
+ static gp2x_soc_t ret = -2;
int pollux_chipname[0x30/4 + 1];
char *pollux_chipname_c = (char *)pollux_chipname;
- int memdev;
+ int memdev_tmp;
int i;
- if (ret != -1)
+ if ((int)ret != -2)
/* already detected */
return ret;
- memdev = open("/dev/mem", O_RDONLY);
- if (memdev == -1)
+ memdev_tmp = open("/dev/mem", O_RDONLY);
+ if (memdev_tmp == -1)
{
perror("open(/dev/mem)");
+ ret = -1;
return -1;
}
- memregs = mmap(0, 0x20000, PROT_READ, MAP_SHARED, memdev, 0xc0000000);
+ memregs = mmap(0, 0x20000, PROT_READ, MAP_SHARED,
+ memdev_tmp, 0xc0000000);
if (memregs == MAP_FAILED)
{
perror("mmap(memregs)");
- close(memdev);
+ close(memdev_tmp);
+ ret = -1;
return -1;
}
memregl = (volatile void *)memregs;
not_pollux_like:
out:
munmap((void *)memregs, 0x20000);
- close(memdev);
+ close(memdev_tmp);
return ret;
}