diff options
| author | sakumisu <[email protected]> | 2022-02-07 18:13:28 +0800 |
|---|---|---|
| committer | sakumisu <[email protected]> | 2022-02-07 18:13:28 +0800 |
| commit | 18685898436023ca83a7e45b4f74709e35faa7f9 (patch) | |
| tree | a65e7151d1cb11eb933fc4deba327133d9fed824 | |
| parent | 1cb56fe0efcfe46b3008992ff73256759a7a991d (diff) | |
check if in interrupt context
| -rw-r--r-- | osal/usb_osal_freertos.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/osal/usb_osal_freertos.c b/osal/usb_osal_freertos.c index ece24eb0..6a551393 100644 --- a/osal/usb_osal_freertos.c +++ b/osal/usb_osal_freertos.c @@ -60,14 +60,15 @@ int usb_osal_sem_take(usb_osal_sem_t sem) int usb_osal_sem_give(usb_osal_sem_t sem) { BaseType_t xHigherPriorityTaskWoken = pdFALSE; - uint32_t intstatus = 1; + uint32_t intstatus = 0; int ret; +#ifdef __riscv /* Obtain the level of the currently executing interrupt. */ -// __asm volatile("csrr %0, mintstatus" -// : "=r"(intstatus)::"memory"); - /* Obtain the number of the currently executing interrupt. */ -// __asm volatile ( "mrs %0, ipsr" : "=r" ( intstatus )::"memory" ); - + __asm volatile("csrr %0, mintstatus" : "=r"(intstatus)::"memory"); +#else + /* Obtain the number of the currently executing interrupt. */ + __asm volatile ( "mrs %0, ipsr" : "=r" ( intstatus )::"memory" ); +#endif if (intstatus == 0) { ret = xSemaphoreGive((SemaphoreHandle_t)sem); } else { |