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Diffstat (limited to 'chip/stm32/usb.c')
-rw-r--r--chip/stm32/usb.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/chip/stm32/usb.c b/chip/stm32/usb.c
index 2afab3f415..ea34877c6d 100644
--- a/chip/stm32/usb.c
+++ b/chip/stm32/usb.c
@@ -296,13 +296,13 @@ void usb_interrupt(void)
{
uint16_t status = STM32_USB_ISTR;
- if ((status & (1 << 10)))
+ if (status & STM32_USB_ISTR_RESET)
usb_reset();
- if (status & (1 << 15)) {
- int ep = status & 0x000f;
+ if (status & STM32_USB_ISTR_CTR) {
+ int ep = status & STM32_USB_ISTR_EP_ID_MASK;
if (ep < USB_EP_COUNT) {
- if (status & 0x0010)
+ if (status & STM32_USB_ISTR_DIR)
usb_ep_rx[ep]();
else
usb_ep_tx[ep]();
@@ -330,7 +330,7 @@ void usb_init(void)
/* power on sequence */
/* keep FRES (USB reset) and remove PDWN (power down) */
- STM32_USB_CNTR = 0x01;
+ STM32_USB_CNTR = STM32_USB_CNTR_FRES;
udelay(1); /* startup time */
/* reset FRES and keep interrupts masked */
STM32_USB_CNTR = 0x00;
@@ -347,7 +347,10 @@ void usb_init(void)
/* Enable interrupt handlers */
task_enable_irq(STM32_IRQ_USB_LP);
/* set interrupts mask : reset/correct transfer/errors */
- STM32_USB_CNTR = 0xe400;
+ STM32_USB_CNTR = STM32_USB_CNTR_CTRM |
+ STM32_USB_CNTR_PMAOVRM |
+ STM32_USB_CNTR_ERRM |
+ STM32_USB_CNTR_RESETM;
#ifdef CONFIG_USB_SERIALNO
usb_load_serial();