diff options
Diffstat (limited to 'src/tusb.h')
| -rw-r--r-- | src/tusb.h | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/src/tusb.h b/src/tusb.h index 4f69a1414..911d1bae0 100644 --- a/src/tusb.h +++ b/src/tusb.h @@ -129,18 +129,38 @@ //--------------------------------------------------------------------+ // APPLICATION API //--------------------------------------------------------------------+ +#if CFG_TUH_ENABLED || CFG_TUD_ENABLED -// Initialize device/host stack +// Internal helper for backward compatible with tusb_init(void) +bool _tusb_rhport_init(uint8_t rhport, tusb_role_t role); + +// Initialize roothub port with device/host role // Note: when using with RTOS, this should be called after scheduler/kernel is started. -// Otherwise it could cause kernel issue since USB IRQ handler does use RTOS queue API. -bool tusb_init(void); +// Otherwise, it could cause kernel issue since USB IRQ handler does use RTOS queue API. +// Note2: defined as macro for backward compatible with tusb_init(void), can be changed to function in the future. +#define _tusb_init_0arg() _tusb_rhport_init(0xff, TUSB_ROLE_INVALID) +#define _tusb_init_1arg(_rhport) _tusb_rhport_init(_rhport, TUSB_ROLE_INVALID) +#define _tusb_init_2arg(_rhport, _role) _tusb_rhport_init(_rhport, _role) +#define tusb_init(...) TU_GET_3RD_ARG(__VA_ARGS__, _tusb_init_2arg, _tusb_init_1arg, _tusb_init_0arg)(__VA_ARGS__) // Check if stack is initialized bool tusb_inited(void); +// Called to handle usb interrupt/event. tusb_init(rhport, role) must be called before +void tusb_int_handler(uint8_t rhport, bool in_isr); + // TODO // bool tusb_teardown(void); +#else + +#define tusb_init(...) (false) +#define tusb_int_handler(...) do {}while(0) +#define tusb_inited() (false) + +#endif + + #ifdef __cplusplus } #endif |