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cpu/stm32/periph/usbdev_fs: always use 16-bit addresses for PMA

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The addressing of the Packet buffer Memory Area (PMA) is done locally in the USB IP core in half-words with 16-bit. The `_ep_in_buf` and `_ep_out_buf` arrays which hold these USB IP local addresses in the PMA for initialized EPs therefore always use `uint16_t`.
This commit is contained in:
Gunar Schorcht 2022-10-12 13:19:33 +02:00
parent add766f3e1
commit 0177018277
1 changed files with 7 additions and 4 deletions
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11
cpu/stm32/periph/usbdev_fs.c
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@ -56,9 +56,12 @@ static stm32_usbdev_fs_t _usbdevs[USBDEV_NUMOF];
static usbdev_ep_t _ep_in[_ENDPOINT_NUMOF];
static usbdev_ep_t _ep_out[_ENDPOINT_NUMOF];
static uint8_t* _ep_out_buf[_ENDPOINT_NUMOF];
/* 16-bit addresses used by the USB IP as endpoint buffers in the PMA SRAM */
static uint16_t _ep_in_buf[_ENDPOINT_NUMOF];
static uint16_t _ep_out_buf[_ENDPOINT_NUMOF];
/* Buffers used for receiving packets on OUT EPs. */
static uint8_t* _app_pbuf[_ENDPOINT_NUMOF];
static uint32_t _ep_in_buf[_ENDPOINT_NUMOF];
/* Forward declaration for the usb device driver */
const usbdev_driver_t driver;
@ -426,7 +429,7 @@ static usbdev_ep_t *_usbdev_new_ep(usbdev_t *dev, usb_ep_type_t type,
if (dir == USB_EP_DIR_IN) {
_ep_in_buf[new_ep->num] = (BUF_BASE_OFFSET + usbdev->used);
} else {
_ep_out_buf[new_ep->num] = (uint8_t*)(BUF_BASE_OFFSET + usbdev->used);
_ep_out_buf[new_ep->num] = (BUF_BASE_OFFSET + usbdev->used);
}
usbdev->used += len;
new_ep->len = len;
@ -533,7 +536,7 @@ static void _usbdev_ep_init(usbdev_ep_t *ep)
EP_DESC[ep->num].addr_tx = _ep_in_buf[ep->num];
EP_DESC[ep->num].count_tx = 64;
} else {
EP_DESC[ep->num].addr_rx = (uint32_t)_ep_out_buf[ep->num];
EP_DESC[ep->num].addr_rx = _ep_out_buf[ep->num];
/* Set BLSIZE + NUM_BLOCK (1) */
EP_DESC[ep->num].count_rx = (1 << 10) | (1 << 15);
}