// vim:shiftwidth=2:expandtab
+// a "gentle" reminder
+#ifdef __ARM_EABI__
+#error loader is meant to be OABI!
+#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define CTRL_TRANSPARENCYENB (1 << 11)
static struct {
+ // mmsp2
u16 mlc_stl_cntl;
union {
- u32 mlc_stl_adr;
+ u32 mlc_stl_adr; // mlcaddress for pollux
struct {
u16 mlc_stl_adrl;
u16 mlc_stl_adrh;
u32 mlc_stl_pallt_d32[256];
};
+ // pollux
+ u32 mlccontrol;
+ u16 mlcpalette[256];
+
// state
void *umem;
u32 old_mlc_stl_adr;
- u32 btn_state; // as seen through /dev/GPIO
- u32 dirty_pal:1;
+ u32 btn_state; // as seen through /dev/GPIO: 0PVdVu YXBA RLSeSt 0Ri0Dn 0Le0Up
+ struct {
+ u32 width, height;
+ u32 stride;
+ u32 bpp;
+ u32 dirty_pal:2;
+ } v;
} mmsp2;
+#define pollux mmsp2 // so that code doesn't look that weird
+enum {
+ DIRTY_PAL_MMSP2 = 1,
+ DIRTY_PAL_POLLUX = 2,
+};
#if defined(LOG_IO) || defined(LOG_IO_UNK)
}
// FIXME: pass real dimensions to blitters
-static void mlc_flip(void *src, int bpp)
+static void mlc_flip(void *src, int bpp, int stride)
{
static int old_bpp;
// only pass pal to host if it's dirty
- if (bpp <= 8 && mmsp2.dirty_pal) {
- host_video_update_pal(mmsp2.mlc_stl_pallt_d32);
- mmsp2.dirty_pal = 0;
+ if (bpp <= 8 && mmsp2.v.dirty_pal) {
+ if (mmsp2.v.dirty_pal == DIRTY_PAL_MMSP2)
+ host_video_update_pal32(mmsp2.mlc_stl_pallt_d32);
+ else
+ host_video_update_pal16(mmsp2.mlcpalette);
+ mmsp2.v.dirty_pal = 0;
}
if (bpp != old_bpp) {
switch (bpp) {
case 4:
- host_video_blit4(src, 320, 240);
+ host_video_blit4(src, 320, 240, stride);
break;
case 8:
- host_video_blit8(src, 320, 240);
+ host_video_blit8(src, 320, 240, stride);
break;
case 16:
- host_video_blit16(src, 320, 240);
+ host_video_blit16(src, 320, 240, stride);
break;
case 24:
{
int invalid_fb_addr = 1;
int manual_refresh = 0;
+ int frame_counter = 0;
struct timespec ts;
int ret, wait_ret;
while (1) {
u8 *gp2x_fb, *gp2x_fb_end;
- int mode, bpp;
ret = pthread_mutex_lock(&fb_mutex);
wait_ret = pthread_cond_timedwait(&fb_cond, &fb_mutex, &ts);
if (ret != 0) {
err("fb_thread: mutex error: %d\n", ret);
sleep(1);
- continue;
+ goto check_keys;
}
if (wait_ret != 0 && wait_ret != ETIMEDOUT) {
err("fb_thread: cond error: %d\n", wait_ret);
sleep(1);
- continue;
+ goto check_keys;
}
if (fb_sync_thread_paused) {
ts_add_nsec(ts, 100000000);
- continue;
+ goto check_keys;
}
if (wait_ret != ETIMEDOUT) {
manual_refresh = 0;
}
- mode = (mmsp2.mlc_stl_cntl >> 9) & 3;
- bpp = mode ? mode * 8 : 4;
-
gp2x_fb = uppermem_lookup(mmsp2.mlc_stl_adr, &gp2x_fb_end);
- if (gp2x_fb == NULL || gp2x_fb + 320*240 * bpp / 8 > gp2x_fb_end) {
+ if (gp2x_fb == NULL || gp2x_fb + 320*240 * mmsp2.v.bpp / 8 > gp2x_fb_end) {
if (!invalid_fb_addr) {
err("fb_thread: %08x is out of range\n", mmsp2.mlc_stl_adr);
invalid_fb_addr = 1;
continue;
}
- mlc_flip(gp2x_fb, bpp);
+ invalid_fb_addr = 0;
+ mlc_flip(gp2x_fb, mmsp2.v.bpp, mmsp2.v.stride);
+
+ frame_counter++;
+ if (frame_counter & 0x0f)
+ continue;
+
+check_keys:
+ // this is to check for kill key, in case main thread hung
+ // or something else went wrong.
+ pollux.btn_state = host_read_btns();
}
}
fb_sync_thread_paused = 0;
}
+static u32 xread32_io_cmn(u32 a, u32 *handled)
+{
+ u32 d = 0;
+
+ *handled = 1;
+ switch (a) {
+ // Wiz stuff
+ case 0x402c: // MLCVSTRIDE0
+ case 0x4060: // MLCVSTRIDE1
+ d = pollux.v.stride;
+ break;
+ case 0x4038: // MLCADDRESS0
+ case 0x406c: // MLCADDRESS1
+ d = pollux.mlc_stl_adr;
+ break;
+ // wiz_lib reads:
+ // ???? ???? YXBA DURiLe ???? VdVuMS LR?? ????
+ // | GPIOC[31:16] | GPIOB[31:16] |
+ case 0xa058: // GPIOBPAD
+ d = (pollux.btn_state >> 1) & 0x0100;
+ d |= (pollux.btn_state << 1) & 0x0200;
+ d |= (pollux.btn_state >> 3) & 0x0080;
+ d |= (pollux.btn_state >> 5) & 0x0040;
+ d |= (pollux.btn_state >> 6) & 0x0c00;
+ d <<= 16;
+ d = ~d;
+ break;
+ case 0xa098: // GPIOCPAD
+ pollux.btn_state = host_read_btns();
+ d = (pollux.btn_state >> 8) & 0x00f0;
+ d |= (pollux.btn_state >> 1) & 0x0008;
+ d |= (pollux.btn_state << 2) & 0x0004;
+ d |= (pollux.btn_state >> 5) & 0x0002;
+ d |= (pollux.btn_state >> 2) & 0x0001;
+ d <<= 16;
+ d = ~d;
+ break;
+ default:
+ *handled = 0;
+ break;
+ }
+
+ return d;
+}
+
static u32 xread8(u32 a)
{
iolog("r8 ", a, 0, 8);
d = 0x9407;
break;
// minilib reads as:
- // 0000 P000 VuVd00 0000 YXBA RLSeSt 0R0D 0L0U
- // | GPIOD |GPIOC[8:15]|GPIOM[0:7]|
+ // 0000 P000 VuVd00 0000 YXBA RLSeSt 0Ri0D 0Le0U
+ // | GPIOD |GPIOC[8:15]|GPIOM[0:7] |
// /dev/GPIO:
// ... 0PVdVu ...
case 0x1184: // GPIOC
case 0x2958:
d = mmsp2.mlc_stl_pallt_a;
break;
+
default:
- goto unh;
+ d = xread32_io_cmn(a_, &t);
+ if (!t)
+ goto unk;
+ if (!(a_ & 2))
+ d >>= 16;
+ break;
}
goto out;
}
-unh:
+unk:
if (a == old_a) {
d = fudge;
fudge = ~fudge;
u32 a_ = a & 0xffff;
struct timespec ts;
u64 t64;
+ u32 t;
switch (a_) {
case 0x0a00: // TCOUNT, 1/7372800s
t64 *= 31665935;
d = t64 >> 32;
break;
+
+ default:
+ d = xread32_io_cmn(a_, &t);
+ if (!t)
+ goto unh;
+ break;
}
+ goto out;
}
if ((a & 0xfff00000) == 0x7f100000) {
u32 *bl = &blitter.dstctrl;
goto out;
}
}
+
+unh:
iolog_unh("r32", a, d, 32);
out:
if ((a & 0xfff00000) == 0x7f000000) {
u32 a_ = a & 0xffff;
switch (a_) {
- case 0x28da:
- mmsp2.mlc_stl_cntl = d | 0xaa;
- break;
- case 0x290e:
- case 0x2910:
- // odd addresses don't affect LCD. What about TV?
- return;
- case 0x2912:
- mmsp2.mlc_stl_adrl = d;
- return;
- case 0x2914:
- mmsp2.mlc_stl_adrh = d;
- if (mmsp2.mlc_stl_adr != mmsp2.old_mlc_stl_adr)
- // ask for refresh
- pthread_cond_signal(&fb_cond);
- mmsp2.old_mlc_stl_adr = mmsp2.mlc_stl_adr;
- return;
- case 0x2958:
- mmsp2.mlc_stl_pallt_a = d & 0x1ff;
- return;
- case 0x295a:
- mmsp2.mlc_stl_pallt_d[mmsp2.mlc_stl_pallt_a++] = d;
- mmsp2.mlc_stl_pallt_a &= 0x1ff;
- mmsp2.dirty_pal = 1;
- return;
+ case 0x28da: {
+ int mode;
+ mmsp2.mlc_stl_cntl = d | 0xaa;
+ mode = (d >> 9) & 3;
+ mmsp2.v.bpp = mode ? mode * 8 : 4;
+ break;
+ }
+ case 0x290c:
+ mmsp2.v.stride = d;
+ return;
+ case 0x290e:
+ case 0x2910:
+ // odd addresses don't affect LCD. What about TV?
+ return;
+ case 0x2912:
+ mmsp2.mlc_stl_adrl = d;
+ return;
+ case 0x2914:
+ mmsp2.mlc_stl_adrh = d;
+ if (mmsp2.mlc_stl_adr != mmsp2.old_mlc_stl_adr)
+ // ask for refresh
+ pthread_cond_signal(&fb_cond);
+ mmsp2.old_mlc_stl_adr = mmsp2.mlc_stl_adr;
+ return;
+ case 0x2958:
+ mmsp2.mlc_stl_pallt_a = d & 0x1ff;
+ return;
+ case 0x295a:
+ mmsp2.mlc_stl_pallt_d[mmsp2.mlc_stl_pallt_a++] = d;
+ mmsp2.mlc_stl_pallt_a &= 0x1ff;
+ mmsp2.v.dirty_pal = DIRTY_PAL_MMSP2;
+ return;
}
}
iolog_unh("w16", a, d, 16);
{
iolog("w32", a, d, 32);
+ if ((a & 0xfff00000) == 0x7f000000) {
+ u32 a_ = a & 0xffff;
+ switch (a_) {
+ // Wiz
+ case 0x4024: // MLCCONTROL0
+ case 0x4058: // MLCCONTROL1
+ pollux.mlccontrol = d;
+ if (!(d & 0x20))
+ return; // layer not enabled
+ if ((d >> 16) == 0x443A)
+ pollux.v.bpp = 8;
+ else
+ pollux.v.bpp = 16;
+ return;
+ case 0x402c: // MLCVSTRIDE0
+ case 0x4060: // MLCVSTRIDE1
+ pollux.v.stride = d;
+ return;
+ case 0x4038: // MLCADDRESS0
+ case 0x406c: // MLCADDRESS1
+ pollux.mlc_stl_adr = d;
+ if (d != mmsp2.old_mlc_stl_adr)
+ // ask for refresh
+ pthread_cond_signal(&fb_cond);
+ mmsp2.old_mlc_stl_adr = d;
+ return;
+ case 0x403c: // MLCPALETTE0
+ case 0x4070: // MLCPALETTE1
+ pollux.mlcpalette[d >> 24] = d;
+ pollux.v.dirty_pal = DIRTY_PAL_POLLUX;
+ return;
+ }
+ }
if ((a & 0xfff00000) == 0x7f100000) {
u32 *bl = &blitter.dstctrl;
u32 a_ = a & 0xfff;
void *pret;
int ret;
+#ifdef PND
+ if (geteuid() == 0) {
+ fprintf(stderr, "don't try to run as root, device registers or memory "
+ "might get trashed crashing the OS or even damaging the device.\n");
+ exit(1);
+ }
+#endif
+
g_linkpage = (void *)(((u32)map_bottom - LINKPAGE_ALLOC) & ~0xfff);
pret = mmap(g_linkpage, LINKPAGE_ALLOC, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_FIXED, -1, 0);
exit(1);
}
-#ifdef WIZ
- // we are short on memmory on Wiz, need special handling
- extern void *host_mmap_upper(void);
- mmsp2.umem = host_mmap_upper();
-#else
+ // TODO: check if this really fails on Wiz..
mmsp2.umem = mmap(NULL, 0x2000000, PROT_READ|PROT_WRITE|PROT_EXEC,
MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
+#ifdef WIZ
+ if (mmsp2.umem == MAP_FAILED) {
+ // we are short on memmory on Wiz, need special handling
+ extern void *host_mmap_upper(void);
+ mmsp2.umem = host_mmap_upper();
+ }
#endif
if (mmsp2.umem == MAP_FAILED) {
perror(PFX "mmap upper mem");
}
pthread_detach(tid);
- // mmsp2 defaults
+ // defaults
mmsp2.mlc_stl_adr = 0x03101000; // fb2 is at 0x03381000
mmsp2.mlc_stl_cntl = 0x4ab; // 16bpp, region 1 active
+ mmsp2.v.width = 320;
+ mmsp2.v.height = 240;
+ mmsp2.v.stride = 320*2;
+ mmsp2.v.bpp = 16;
+ mmsp2.v.dirty_pal = 1;
sigemptyset(&segv_action.sa_mask);
sigaction(SIGSEGV, &segv_action, NULL);
return count;
}
-struct dev_fd_t emu_interesting_fds[] = {
- [IFD_SOUND] = { "/dev/dsp", -1 },
- { NULL, 0 },
-};
-
static void *emu_mmap_dev(unsigned int length, int prot, int flags, unsigned int offset)
{
u8 *umem, *umem_end;
// SoC regs
- if ((offset & ~0xffff) == 0xc0000000) {
+ if ((offset & ~0x1ffff) == 0xc0000000) {
return mmap((void *)0x7f000000, length, PROT_NONE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_FIXED|MAP_NORESERVE, -1, 0);
}
- // blitter
+ // MMSP2 blitter
if ((offset & ~0xffff) == 0xe0020000) {
return mmap((void *)0x7f100000, length, PROT_NONE,
MAP_PRIVATE|MAP_ANONYMOUS|MAP_FIXED|MAP_NORESERVE, -1, 0);
return MAP_FAILED;
}
+static void emu_sound_open(int fd)
+{
+#ifdef PND
+ int ret, frag;
+
+ // set default buffer size to 16 * 1K
+ frag = (16<<16) | 10; // 16K
+ ret = ioctl(fd, SNDCTL_DSP_SETFRAGMENT, &frag);
+ if (ret != 0) {
+ err("snd ioctl SETFRAGMENT %08x: ", frag);
+ perror(NULL);
+ }
+#endif
+}
+
static int emu_sound_ioctl(int fd, int request, void *argp)
{
int *arg = argp;
/* People set strange frag settings on GP2X, which even manage
* to break audio on pandora (causes writes to fail).
* Catch this and set to something that works. */
- if (request == SNDCTL_DSP_SPEED) {
- int ret, bsize, frag;
+ switch(request) {
+ case SNDCTL_DSP_SETFRAGMENT: {
+ int ret, bsize, frag, frag_cnt;
+ if (arg == NULL)
+ break;
- // ~4ms. gpSP wants small buffers or else it stutters
- // because of it's audio thread sync stuff
- bsize = *arg / 250 * 4;
- for (frag = 0; bsize; bsize >>= 1, frag++)
- ;
+ frag = *arg & 0xffff;
+ frag_cnt = *arg >> 16;
+ bsize = frag_cnt << frag;
+ if (frag < 10 || bsize < 4096*4 || bsize > 4096*4*2) {
+ /*
+ * ~4ms. gpSP wants small buffers or else it stutters
+ * because of it's audio thread sync stuff
+ * XXX: hardcoding, as low samplerates will result in small fragment size,
+ * which itself causes ALSA stall and hangs the program.
+ * Also some apps change samplerate without reopening /dev/dsp,
+ * which causes ALSA to reject SNDCTL_DSP_SETFRAGMENT.
+ */
+ bsize = 44100 / 250 * 4;
+
+ for (frag = 0; bsize; bsize >>= 1, frag++)
+ ;
+
+ frag_cnt = 16;
+ }
- frag |= 16 << 16; // fragment count
- ret = ioctl(fd, SNDCTL_DSP_SETFRAGMENT, &frag);
- if (ret != 0) {
- err("snd ioctl SETFRAGMENT %08x: ", frag);
- perror(NULL);
+ frag |= frag_cnt << 16;
+ ret = ioctl(fd, SNDCTL_DSP_SETFRAGMENT, &frag);
+ if (ret != 0) {
+ err("snd ioctl SETFRAGMENT %08x: ", frag);
+ perror(NULL);
+ }
+ // indicate success even if we fail (because of ALSA mostly),
+ // things like MikMod will bail out otherwise.
+ return 0;
}
+ case SNDCTL_DSP_SYNC:
+ // Franxis tends to use sync/write loops, bad idea under ALSA
+ return 0;
+ default:
+ break;
}
- else if (request == SNDCTL_DSP_SETFRAGMENT)
- return 0;
return ioctl(fd, request, argp);
}
return -1;
}
+struct dev_fd_t emu_interesting_fds[] = {
+ [IFD_SOUND] = { "/dev/dsp", -1, emu_sound_open },
+ { NULL, 0, NULL },
+};
+
static const struct {
const char *from;
const char *to;
return path;
}
+static void wrap_path_free(const char *w_path, const char *old_path)
+{
+ if (w_path != old_path)
+ free((void *)w_path);
+}
+
void *emu_do_fopen(const char *path, const char *mode)
{
- const char *w_path = wrap_path(path);
+ const char *w_path;
FILE *ret;
+
+ w_path = wrap_path(path);
ret = fopen(w_path, mode);
- if (w_path != path)
- free((void *)w_path);
+ wrap_path_free(w_path, path);
+
return ret;
}
p = tmp_path + strlen(tmp_path);
p2 = wrap_path(command);
- snprintf(p, sizeof(tmp_path) - (p - tmp_path), " %s", p2);
- if (p2 != command)
- free((void *)p2);
+ snprintf(p, sizeof(tmp_path) - (p - tmp_path), " --nomenu %s", p2);
+ wrap_path_free(p2, command);
dbg("system: \"%s\"\n", tmp_path);
return ret;
}
+int emu_do_execve(const char *filename, char *const argv[], char *const envp[])
+{
+ const char **new_argv;
+ char *prep_path;
+ int i, ret, argc;
+
+ if (filename == NULL)
+ return -1;
+
+ if (strstr(filename, "/gp2xmenu") != NULL)
+ exit(0);
+
+ for (i = 0; argv[i] != NULL; i++)
+ ;
+ argc = i + 1;
+
+ new_argv = calloc(argc + 2, sizeof(new_argv[0]));
+ if (new_argv == NULL)
+ return -1;
+
+ prep_path = malloc(512);
+ if (prep_path == NULL)
+ return -1;
+
+ make_local_path(prep_path, 512, "ginge_prep");
+ new_argv[0] = prep_path;
+ new_argv[1] = "--nomenu";
+ new_argv[2] = wrap_path(filename);
+
+ if (argv[0] != NULL)
+ for (i = 1; argv[i] != NULL; i++)
+ new_argv[i + 2] = argv[i];
+
+ dbg("execve \"%s\" %s \"%s\"\n", new_argv[0], new_argv[1], new_argv[2]);
+ ret = execve(new_argv[0], (char **)new_argv, envp);
+ perror("execve");
+ return ret;
+}
+
notaz.gp2x.de / ginge.git / blobdiff