301 lines
9.6 KiB
C
301 lines
9.6 KiB
C
#include "plugin.h"
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#include "fixedpoint.h"
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#include "lib/helper.h"
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#include "lib/pluginlib_exit.h"
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#include "SDL.h"
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#include "SDL_video.h"
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#ifndef COMBINED_SDL
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extern int my_main(int argc, char *argv[]);
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#else
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//#if 0
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extern int SDLBlock_main(int argc, char *argv[]);
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extern int ballfield_main(int argc, char *argv[]);
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extern int parallax3_main(int argc, char *argv[]);
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extern int parallax4_main(int argc, char *argv[]);
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extern int testbitmap_main(int argc, char *argv[]);
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extern int testcursor_main(int argc, char *argv[]);
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extern int testhread_main(int argc, char *argv[]);
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extern int testplatform_main(int argc, char *argv[]);
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extern int testsprite_main(int argc, char *argv[]);
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extern int testwin_main(int argc, char *argv[]);
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//#endif
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extern int abe_main(int argc, char *argv[]);
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extern int ballerburg_main(int argc, char **argv);
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extern int raytrace_main(int argc, char *argv[]);
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extern int wolf3d_main(int argc, char *argv[]);
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extern int testsound_main(int argc, char *argv[]);
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extern int duke3d_main(int argc,char **argv);
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extern int quake_main (int c, char **v);
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char *wolf3d_argv[] = { "wolf3d", "--audiobuffer", "2048" };
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char *duke3d_argv[] = { "duke3d" };
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char *quake_argv[] = { "quake", "-basedir", "/.rockbox/quake" };
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struct prog_t {
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const char *name;
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int (*main)(int argc, char *argv[]);
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bool printf_enabled;
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int argc;
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char **argv;
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} programs[] = {
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#if 0
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{ "Abe's Amazing Adventure", abe_main, true },
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{ "Ballerburg", ballerburg_main, false },
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{ "Screensaver", SDLBlock_main, false },
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{ "Ball Field", ballfield_main, false },
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{ "Parallax v.3", parallax3_main, false },
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{ "Parallax v.4", parallax4_main, false },
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{ "Raytrace", raytrace_main, false },
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{ "Test Bitmap", testbitmap_main, false },
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{ "Test Cursor", testcursor_main, false },
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{ "Test Thread", testhread_main, true },
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{ "Test Platform", testplatform_main, true },
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{ "Test Sprite", testsprite_main, false },
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{ "Test Window", testwin_main, false },
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#endif
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{ "Duke3D", duke3d_main, true, ARRAYLEN(duke3d_argv), duke3d_argv },
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{ "Wolf3D", wolf3d_main, false, ARRAYLEN(wolf3d_argv), wolf3d_argv },
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{ "Quake", quake_main, true, ARRAYLEN(quake_argv), quake_argv },
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{ "Test sound", testsound_main, true, 0, NULL },
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};
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#endif
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void *audiobuf = NULL;
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unsigned int sdl_thread_id, main_thread_id;
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bool printf_enabled = true;
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static void (*exit_cb)(void) = NULL;
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/* sets "our" exit handler */
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void rbsdl_atexit(void (*cb)(void))
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{
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if(exit_cb)
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{
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rb->splash(HZ, "WARNING: multiple exit handlers!");
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}
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exit_cb = cb;
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}
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/* called by program */
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void rb_exit(int rc)
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{
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if(rb->thread_self() == main_thread_id) /* rockbox main thread */
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exit(rc);
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else
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rb->thread_exit();
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}
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/* exit handler, called by rockbox */
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void cleanup(void)
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{
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if(exit_cb)
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exit_cb();
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if(exit_cb != SDL_Quit)
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SDL_Quit();
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if(audiobuf)
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memset(audiobuf, 0, 4); /* clear */
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backlight_use_settings();
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#ifdef HAVE_ADJUSTABLE_CPU_FREQ
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rb->cpu_boost(false);
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#endif
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}
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#ifdef COMBINED_SDL
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const char *formatter(char *buf, size_t n, int i, const char *unit)
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{
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snprintf(buf, n, "%s", programs[i].name);
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return buf;
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}
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#endif
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#ifdef SIMULATOR
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#include <signal.h>
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void segv(int s, siginfo_t *si, void *ptr)
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{
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LOGF("SEGV: at address %llx (%d)", si->si_addr, si->si_code);
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exit(1);
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}
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void install_segv(void)
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{
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struct sigaction act;
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act.sa_handler = NULL;
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sigemptyset(&act.sa_mask);
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act.sa_flags = SA_SIGINFO;
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act.sa_sigaction = segv;
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sigaction(SIGSEGV, &act, NULL);
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}
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#endif
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static long main_stack[1024 * 1024 / 4];
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int (*main_fn)(int argc, char *argv[]);
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int prog_idx;
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static void main_thread(void)
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{
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char *fallback[] = { "/blah", NULL };
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#ifdef COMBINED_SDL
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char **argv = programs[prog_idx].argv ? programs[prog_idx].argv : fallback;
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int argc = programs[prog_idx].argv ? programs[prog_idx].argc : 1;
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#else
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char **argv = fallback;
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int argc = 1;
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#endif
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int rc = main_fn(argc, argv);
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if(rc != 0)
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rb->splash(HZ * 2, SDL_GetError());
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rb->thread_exit();
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}
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#if defined(CPU_ARM) && !defined(SIMULATOR)
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#define CR_M (1 << 0) /* MMU enable */
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#define CR_A (1 << 1) /* Alignment abort enable */
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#define CR_C (1 << 2) /* Dcache enable */
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#define CR_W (1 << 3) /* Write buffer enable */
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#define CR_P (1 << 4) /* 32-bit exception handler */
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#define CR_D (1 << 5) /* 32-bit data address range */
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#define CR_L (1 << 6) /* Implementation defined */
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#define CR_B (1 << 7) /* Big endian */
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#define CR_S (1 << 8) /* System MMU protection */
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#define CR_R (1 << 9) /* ROM MMU protection */
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#define CR_F (1 << 10) /* Implementation defined */
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#define CR_Z (1 << 11) /* Implementation defined */
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#define CR_I (1 << 12) /* Icache enable */
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#define CR_V (1 << 13) /* Vectors relocated to 0xffff0000 */
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#define CR_RR (1 << 14) /* Round Robin cache replacement */
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#define CR_L4 (1 << 15) /* LDR pc can set T bit */
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#define CR_DT (1 << 16)
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#ifdef CONFIG_MMU
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#define CR_HA (1 << 17) /* Hardware management of Access Flag */
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#else
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#define CR_BR (1 << 17) /* MPU Background region enable (PMSA) */
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#endif
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#define CR_IT (1 << 18)
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#define CR_ST (1 << 19)
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#define CR_FI (1 << 21) /* Fast interrupt (lower latency mode) */
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#define CR_U (1 << 22) /* Unaligned access operation */
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#define CR_XP (1 << 23) /* Extended page tables */
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#define CR_VE (1 << 24) /* Vectored interrupts */
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#define CR_EE (1 << 25) /* Exception (Big) Endian */
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#define CR_TRE (1 << 28) /* TEX remap enable */
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#define CR_AFE (1 << 29) /* Access flag enable */
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#define CR_TE (1 << 30) /* Thumb exception enable */
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#define __LINUX_ARM_ARCH__ ARM_ARCH
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#if __LINUX_ARM_ARCH__ >= 7
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#define isb(option) __asm__ __volatile__ ("isb " #option : : : "memory")
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#define dsb(option) __asm__ __volatile__ ("dsb " #option : : : "memory")
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#define dmb(option) __asm__ __volatile__ ("dmb " #option : : : "memory")
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#elif defined(CONFIG_CPU_XSC3) || __LINUX_ARM_ARCH__ == 6
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#define isb(x) __asm__ __volatile__ ("mcr p15, 0, %0, c7, c5, 4" \
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: : "r" (0) : "memory")
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#define dsb(x) __asm__ __volatile__ ("mcr p15, 0, %0, c7, c10, 4" \
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: : "r" (0) : "memory")
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#define dmb(x) __asm__ __volatile__ ("mcr p15, 0, %0, c7, c10, 5" \
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: : "r" (0) : "memory")
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#elif defined(CONFIG_CPU_FA526)
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#define isb(x) __asm__ __volatile__ ("mcr p15, 0, %0, c7, c5, 4" \
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: : "r" (0) : "memory")
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#define dsb(x) __asm__ __volatile__ ("mcr p15, 0, %0, c7, c10, 4" \
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: : "r" (0) : "memory")
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#define dmb(x) __asm__ __volatile__ ("" : : : "memory")
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#else
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#define isb(x) __asm__ __volatile__ ("" : : : "memory")
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#define dsb(x) __asm__ __volatile__ ("mcr p15, 0, %0, c7, c10, 4" \
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: : "r" (0) : "memory")
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#define dmb(x) __asm__ __volatile__ ("" : : : "memory")
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#endif
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static inline unsigned long get_cr(void)
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{
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unsigned long val;
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asm("mrc p15, 0, %0, c1, c0, 0 @ get CR" : "=r" (val) : : "cc");
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return val;
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}
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static inline void set_cr(unsigned long val)
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{
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asm volatile("mcr p15, 0, %0, c1, c0, 0 @ set CR"
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: : "r" (val) : "cc");
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isb();
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}
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#endif
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enum plugin_status plugin_start(const void *param)
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{
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(void) param;
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#if defined(CPU_ARM) && !defined(SIMULATOR)
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/* (don't) set alignment trap */
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//set_cr(get_cr() | CR_A);
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#endif
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/* don't confuse this with the main SDL thread! */
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main_thread_id = rb->thread_self();
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/* we always use the audio buffer */
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size_t sz;
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audiobuf = rb->plugin_get_audio_buffer(&sz);
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#if (CONFIG_PLATFORM & PLATFORM_NATIVE)
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if ((uintptr_t)audiobuf < (uintptr_t)plugin_start_addr)
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{
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uint32_t tmp_size = (uintptr_t)plugin_start_addr - (uintptr_t)audiobuf;
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sz = MIN(sz, tmp_size);
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}
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#endif
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/* wipe sig */
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rb->memset(audiobuf, 0, sz);
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if(init_memory_pool(sz, audiobuf) == (size_t) -1)
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{
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rb->splashf(HZ*2, "TLSF init failed!");
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return PLUGIN_ERROR;
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}
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#ifdef SIMULATOR
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install_segv();
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#endif
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#ifdef COMBINED_SDL
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int prog = 0;
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rb->set_int("Choose SDL Program", "", UNIT_INT, &prog, NULL, 1, 0, ARRAYLEN(programs) - 1, formatter);
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prog_idx = prog;
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main_fn = programs[prog].main;
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printf_enabled = programs[prog].printf_enabled;
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#else
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main_fn = my_main;
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#endif
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#ifdef HAVE_ADJUSTABLE_CPU_FREQ
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rb->cpu_boost(true);
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#endif
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backlight_ignore_timeout();
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/* real exit handler */
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#undef rb_atexit
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rb_atexit(cleanup);
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/* make a new thread to use a bigger stack */
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sdl_thread_id = rb->create_thread(main_thread, main_stack, sizeof(main_stack), 0, "sdl_main" IF_PRIO(, PRIORITY_USER_INTERFACE) IF_COP(, CPU));
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rb->thread_wait(sdl_thread_id);
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rb->sleep(HZ); /* wait a second... */
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return PLUGIN_OK;
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}
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