sh2 overclock and logging stuff, menu refactoring

[libpicofe.git] / linux / plat.c

diff --git a/linux/plat.c b/linux/plat.c
index 751d97a..f5742b9 100644 (file)
--- a/linux/plat.c
+++ b/linux/plat.c
@@ -1,8 +1,11 @@
+#define _GNU_SOURCE
 #include <stdio.h>
+#include <string.h>
 #include <dirent.h>
 #include <sys/time.h>
 #include <time.h>
 #include <unistd.h>
+#include <sys/mman.h>
 
 #include "../common/plat.h"
 
@@ -17,6 +20,27 @@ int plat_is_dir(const char *path)
        return 0;
 }
 
+int plat_get_root_dir(char *dst, int len)
+{
+       extern char **g_argv;
+       int j;
+
+       strncpy(dst, g_argv[0], len);
+       len -= 32; // reserve
+       if (len < 0) len = 0;
+       dst[len] = 0;
+       for (j = strlen(dst); j > 0; j--)
+               if (dst[j] == '/') { dst[j+1] = 0; break; }
+
+       return j + 1;
+}
+
+#ifdef __GP2X__
+/* Wiz has a borked gettimeofday().. */
+#define plat_get_ticks_ms plat_get_ticks_ms_good
+#define plat_get_ticks_us plat_get_ticks_us_good
+#endif
+
 unsigned int plat_get_ticks_ms(void)
 {
        struct timeval tv;
@@ -25,12 +49,25 @@ unsigned int plat_get_ticks_ms(void)
        gettimeofday(&tv, NULL);
 
        ret = (unsigned)tv.tv_sec * 1000;
-       /* approximate division */
+       /* approximate /= 1000 */
        ret += ((unsigned)tv.tv_usec * 4195) >> 22;
 
        return ret;
 }
 
+unsigned int plat_get_ticks_us(void)
+{
+       struct timeval tv;
+       unsigned int ret;
+
+       gettimeofday(&tv, NULL);
+
+       ret = (unsigned)tv.tv_sec * 1000000;
+       ret += (unsigned)tv.tv_usec;
+
+       return ret;
+}
+
 void plat_sleep_ms(int ms)
 {
        usleep(ms * 1000);
@@ -73,3 +110,35 @@ int plat_wait_event(int *fds_hnds, int count, int timeout_ms)
        return ret;
 }
 
+void *plat_mmap(unsigned long addr, size_t size)
+{
+       void *req, *ret;
+
+       req = (void *)addr;
+       ret = mmap(req, size, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
+       if (ret == MAP_FAILED)
+               return NULL;
+       if (ret != req)
+               printf("warning: mmaped to %p, requested %p\n", ret, req);
+
+       return ret;
+}
+
+void *plat_mremap(void *ptr, size_t oldsize, size_t newsize)
+{
+       void *ret;
+
+       ret = mremap(ptr, oldsize, newsize, MREMAP_MAYMOVE);
+       if (ret == MAP_FAILED)
+               return NULL;
+       if (ret != ptr)
+               printf("warning: mremap moved: %p -> %p\n", ptr, ret);
+
+       return ret;
+}
+
+void plat_munmap(void *ptr, size_t size)
+{
+       munmap(ptr, size);
+}
+