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drivers: usb_dc_native_posix: rework handle_usb_control/handle_usb_data

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Use pointer to struct usb_ep_ctrl_prv, which allows to remove
a few variables and simplifies subsequent improvements.

Use consistently ep_idx in handle_usb_control() instead of
ntohl(hdr->common.ep).

Revise logging so that it is clearer what event is being processed.

Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
This commit is contained in:
Johann Fischer 2021-02-19 00:01:39 +01:00 • committed by Carles Cufí
commit 16cd3be690
1 changed files with 24 additions and 26 deletions
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50
drivers/usb/device/usb_dc_native_posix.c
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@ -510,17 +510,21 @@ int usb_dc_ep_mps(const uint8_t ep)
int handle_usb_control(struct usbip_header *hdr)
{
uint8_t ep_idx = USB_EP_GET_IDX(ntohl(hdr->common.ep));
usb_dc_ep_callback ep_cb = usbip_ctrl.out_ep_ctrl[ep_idx].cb;
struct usb_ep_ctrl_prv *ep_ctrl;
LOG_DBG("ep %x idx %u", ntohl(hdr->common.ep), ep_idx);
ep_ctrl = &usbip_ctrl.out_ep_ctrl[ep_idx];
if (ep_ctrl->cb == NULL) {
LOG_ERR("Control endpoint callback not set");
return -EIO;
}
if (ep_cb) {
LOG_DBG("Call ep_cb");
ep_cb(ntohl(hdr->common.ep), USB_DC_EP_SETUP);
if (ntohl(hdr->common.command) == USBIP_CMD_SUBMIT &&
hdr->u.submit.transfer_buffer_length != 0) {
ep_cb(ntohl(hdr->common.ep), USB_DC_EP_DATA_OUT);
}
LOG_DBG("SETUP event ep 0x%02x %u", ep_idx, ep_ctrl->data_len);
ep_ctrl->cb(ep_idx, USB_DC_EP_SETUP);
if (hdr->u.submit.transfer_buffer_length != 0) {
LOG_DBG("DATA OUT event ep 0x%02x %u",
ep_idx, ep_ctrl->data_len);
ep_ctrl->cb(ep_idx, USB_DC_EP_DATA_OUT);
}
return 0;
@ -529,59 +533,53 @@ int handle_usb_control(struct usbip_header *hdr)
int handle_usb_data(struct usbip_header *hdr)
{
uint8_t ep_idx = ntohl(hdr->common.ep);
usb_dc_ep_callback ep_cb;
struct usb_ep_ctrl_prv *ep_ctrl;
uint8_t ep;
LOG_DBG("ep_idx %u", ep_idx);
if (ntohl(hdr->common.direction) == USBIP_DIR_OUT) {
if (ep_idx >= USBIP_OUT_EP_NUM) {
return -EINVAL;
}
ep_ctrl = &usbip_ctrl.out_ep_ctrl[ep_idx];
ep = ep_idx | USB_EP_DIR_OUT;
ep_cb = usbip_ctrl.out_ep_ctrl[ep_idx].cb;
LOG_DBG("DATA OUT event ep 0x%02x %u", ep, ep_ctrl->data_len);
ep_cb(ep, USB_DC_EP_DATA_OUT);
ep_ctrl->cb(ep, USB_DC_EP_DATA_OUT);
/* Send ACK reply */
if (!usbip_send_common(ep, 0)) {
return -EIO;
}
} else {
uint8_t buf_len = usbip_ctrl.in_ep_ctrl[ep_idx].buf_len;
uint8_t *buf = usbip_ctrl.in_ep_ctrl[ep_idx].buf;
if (ep_idx >= USBIP_IN_EP_NUM) {
return -EINVAL;
}
ep_ctrl = &usbip_ctrl.in_ep_ctrl[ep_idx];
ep = ep_idx | USB_EP_DIR_IN;
ep_cb = usbip_ctrl.in_ep_ctrl[ep_idx].cb;
LOG_DBG("DATA IN event ep 0x%02x %u", ep, ep_ctrl->buf_len);
/* Read USB setup, not handled */
if (!usbip_skip_setup()) {
return -EIO;
}
LOG_DBG("Send %u bytes", buf_len);
/* Send queued data */
if (!usbip_send_common(ep, buf_len)) {
if (!usbip_send_common(ep, ep_ctrl->buf_len)) {
return -EIO;
}
if (usbip_send(ep, buf, buf_len) != buf_len) {
if (usbip_send(ep, ep_ctrl->buf, ep_ctrl->buf_len) !=
ep_ctrl->buf_len) {
return -EIO;
}
LOG_HEXDUMP_DBG(buf, buf_len, ">");
LOG_HEXDUMP_DBG(ep_ctrl->buf, ep_ctrl->buf_len, ">");
/* Indicate data sent */
ep_cb(ep, USB_DC_EP_DATA_IN);
ep_ctrl->cb(ep, USB_DC_EP_DATA_IN);
}
LOG_DBG("ep %x ep_cb %p", ep, ep_cb);
return 0;
}