EMTime/libopencm3
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

usb/dwc: Enable (unaligned) access to OTG_FIFO for ARMv8-M Main

Browse Source
This commit is contained in:
ALTracer
2025-07-16 22:57:33 +03:00
parent 0efe43d43e
commit caaf002f09
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
lib/usb/usb_dwc_common.c
View File

@@ -240,7 +240,7 @@ uint16_t dwc_ep_write_packet(usbd_device *const usbd_dev, const uint8_t addr, co
const uint32_t *buf32 = buf;
/* Copy buffer to endpoint FIFO, note - memcpy does not work.
* ARMv7M supports non-word-aligned accesses, ARMv6M does not. */
#if defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7EM__)
#if defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7EM__) || defined(__ARM_ARCH_8M_MAIN__)
for (size_t i = 0; i < len; i += 4) {
REBASE(OTG_FIFO(ep)) = *buf32++;
}
@@ -293,7 +293,7 @@ uint16_t dwc_ep_read_packet(usbd_device *usbd_dev, uint8_t addr, void *buf, uint
int i = 0;
uint32_t *buf32 = buf;
/* ARMv7M supports non-word-aligned accesses, ARMv6M does not. */
#if defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7EM__)
#if defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7EM__) || defined(__ARM_ARCH_8M_MAIN__)
for (i = len; i >= 4; i -= 4) {
*buf32++ = REBASE(OTG_FIFO(0));
usbd_dev->rxbcnt -= 4;