allow tusb_init() to call multiple times

enhance nrf5x
This commit is contained in:
hathach
2018-07-05 00:23:47 +07:00
parent fc139b009f
commit 40de723d41
2 changed files with 28 additions and 14 deletions

View File

@@ -41,8 +41,14 @@
#include "tusb.h"
#include "device/usbd_pvt.h"
static bool _initialized = false;
tusb_error_t tusb_init(void)
{
// skip if already initialized
if (_initialized) return TUSB_ERROR_NONE;
VERIFY( tusb_hal_init(), TUSB_ERROR_FAILED ) ; // hardware init
#if MODE_HOST_SUPPORTED
@@ -53,6 +59,8 @@ tusb_error_t tusb_init(void)
TU_ASSERT_ERR ( usbd_init() ); // device stack init
#endif
_initialized = true;
return TUSB_ERROR_NONE;
}