X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=platform%2Flinux%2Fplat.c;h=f5742b92f678b8259a3e2f034ab36f0f0042c582;hb=a736af3ecf708652f90e9cb05445d984960a0eec;hp=751d97ac3bb1446770985ac56deddaa8017ab72d;hpb=0403eead1f44c29d6ec5398ef4827ce0ae31eec4;p=picodrive.git

diff --git a/platform/linux/plat.c b/platform/linux/plat.c
index 751d97a..f5742b9 100644
--- a/platform/linux/plat.c
+++ b/platform/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);
+}
+