Note: just a PoC that the current SPI flash code is based on.
Not meant to reject the getopt code Simon posted.
Signed-off-by: Mike Frysinger <vap...@gentoo.org>
---
arch/sandbox/cpu/os.c | 13 +++++++++++++
arch/sandbox/cpu/start.c | 24 ++++++++++++++++++++++++
include/os.h | 2 ++
3 files changed, 39 insertions(+), 0 deletions(-)
diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c
index 6e257ff..1d3e54f 100644
--- a/arch/sandbox/cpu/os.c
+++ b/arch/sandbox/cpu/os.c
@@ -22,6 +22,7 @@
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
+#include <string.h>
#include <termios.h>
#include <time.h>
#include <unistd.h>
@@ -127,3 +128,15 @@ u64 os_get_nsec(void)
return tv.tv_sec * 1000000000ULL + tv.tv_usec * 1000;
#endif
}
+
+extern char **sb_argv;
+const char *os_getopt(const char *name, int has_arg)
+{
+ size_t i;
+
+ for (i = 0; sb_argv[i]; ++i)
+ if (!strcmp(sb_argv[i], name))
+ return sb_argv[i + !!has_arg];
+
+ return NULL;
+}
diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c
index a429e29..3508a35 100644
--- a/arch/sandbox/cpu/start.c
+++ b/arch/sandbox/cpu/start.c
@@ -20,9 +20,33 @@
*/
#include <common.h>
+#include <os.h>
+
+char **sb_argv;
+
+static const char usage[] =
+ "Usage: u-boot [options]\n"
+ "\n"
+ "Options: (note: not all options may be available)\n"
+ " -h, --help this message (imagine that)\n"
+#ifdef CONFIG_SANDBOX_SPI
+ " --spi-<bus>-<cs> <spec> connect client to spi <bus> on <cs>\n"
+# ifdef CONFIG_SPI_FLASH
+ " spec: sf:<file> treat <file> as spi flash\n"
+# endif
+#endif
+;
int main(int argc, char *argv[])
{
+ /* Save the argv for people to access */
+ sb_argv = argv;
+
+ if (os_getopt("-h", 0) || os_getopt("--help", 0)) {
+ serial_puts(usage);
+ return 0;
+ }
+
/*
* Do pre- and post-relocation init, then start up U-Boot. This will
* never return.
diff --git a/include/os.h b/include/os.h
index d182f40..cb88509 100644
--- a/include/os.h
+++ b/include/os.h
@@ -112,4 +112,6 @@ void os_usleep(unsigned long usec);
*/
u64 os_get_nsec(void);
+const char *os_getopt(const char *name, int has_arg);
+
#endif
--
1.7.8.3
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