Files
simtrace2/firmware/libcommon/include/usb_buf.h
Harald Welte 9d90d284ed Use system include <foo.h> notation for libosmocore headers
the curent local copies of libosmocore headers + source is a temporary
hack anyway. We should instead rely on a system-wide install of
libosmocore cross-compiled for arm-none-eabi.  But leave that as a
second (later) step beyond this patch.

Change-Id: Ia63fd842d45a2b404233b4326050e7eda0604cf0
2018-06-29 22:26:57 +02:00

29 lines
745 B
C

#pragma once
#include <osmocom/core/linuxlist.h>
#include <osmocom/core/msgb.h>
/* buffered USB endpoint (with queue of msgb) */
struct usb_buffered_ep {
/* endpoint number */
uint8_t ep;
/* OUT endpoint (1) or IN/IRQ (0)? */
uint8_t out_from_host;
/* currently any transfer in progress? */
volatile uint32_t in_progress;
/* Tx queue (IN) / Rx queue (OUT) */
struct llist_head queue;
};
struct msgb *usb_buf_alloc(uint8_t ep);
void usb_buf_free(struct msgb *msg);
int usb_buf_submit(struct msgb *msg);
struct llist_head *usb_get_queue(uint8_t ep);
int usb_drain_queue(uint8_t ep);
void usb_buf_init(void);
struct usb_buffered_ep *usb_get_buf_ep(uint8_t ep);
int usb_refill_to_host(uint8_t ep);
int usb_refill_from_host(uint8_t ep);