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stop transmission when usb is suspended

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mosu_195 2022-03-26 11:45:02 +01:00 committed by fenugrec
parent 5a90a192a1
commit a01c508c86
1 changed files with 6 additions and 1 deletions
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7
src/usbd_gs_can.c
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@ -61,6 +61,8 @@ typedef struct {
bool pad_pkts_to_max_pkt_size; bool pad_pkts_to_max_pkt_size;
} USBD_GS_CAN_HandleTypeDef __attribute__ ((aligned (4))); } USBD_GS_CAN_HandleTypeDef __attribute__ ((aligned (4)));
static volatile bool is_usb_suspend_cb = false;
static uint8_t USBD_GS_CAN_Start(USBD_HandleTypeDef *pdev, uint8_t cfgidx); static uint8_t USBD_GS_CAN_Start(USBD_HandleTypeDef *pdev, uint8_t cfgidx);
static uint8_t USBD_GS_CAN_DeInit(USBD_HandleTypeDef *pdev, uint8_t cfgidx); static uint8_t USBD_GS_CAN_DeInit(USBD_HandleTypeDef *pdev, uint8_t cfgidx);
static uint8_t USBD_GS_CAN_Setup(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req); static uint8_t USBD_GS_CAN_Setup(USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req);
@ -653,7 +655,7 @@ bool USBD_GS_CAN_TxReady(USBD_HandleTypeDef *pdev)
uint8_t USBD_GS_CAN_Transmit(USBD_HandleTypeDef *pdev, uint8_t *buf, uint16_t len) uint8_t USBD_GS_CAN_Transmit(USBD_HandleTypeDef *pdev, uint8_t *buf, uint16_t len)
{ {
USBD_GS_CAN_HandleTypeDef *hcan = (USBD_GS_CAN_HandleTypeDef*)pdev->pClassData; USBD_GS_CAN_HandleTypeDef *hcan = (USBD_GS_CAN_HandleTypeDef*)pdev->pClassData;
if (hcan->TxState == 0) { if (hcan->TxState == 0 && (false == is_usb_suspend_cb)) {
hcan->TxState = 1; hcan->TxState = 1;
USBD_LL_Transmit(pdev, GSUSB_ENDPOINT_IN, buf, len); USBD_LL_Transmit(pdev, GSUSB_ENDPOINT_IN, buf, len);
return USBD_OK; return USBD_OK;
@ -752,10 +754,13 @@ void USBD_GS_CAN_SuspendCallback(USBD_HandleTypeDef *pdev)
if(hcan != NULL && hcan->leds != NULL) if(hcan != NULL && hcan->leds != NULL)
led_set_mode(hcan->leds, led_mode_off); led_set_mode(hcan->leds, led_mode_off);
is_usb_suspend_cb = true;
} }
void USBD_GS_CAN_ResumeCallback(USBD_HandleTypeDef *pdev) void USBD_GS_CAN_ResumeCallback(USBD_HandleTypeDef *pdev)
{ {
USBD_GS_CAN_HandleTypeDef *hcan = (USBD_GS_CAN_HandleTypeDef*) pdev->pClassData; USBD_GS_CAN_HandleTypeDef *hcan = (USBD_GS_CAN_HandleTypeDef*) pdev->pClassData;
hcan->TxState = 0; hcan->TxState = 0;
is_usb_suspend_cb = false;
} }