// SPDX-License-Identifier: GPL-1.0+
/*
* Renesas USB driver
*
* Copyright (C) 2011 Renesas Solutions Corp.
* Copyright (C) 2019 Renesas Electronics Corporation
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
*/
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/scatterlist.h>
#include "common.h"
#include "pipe.h"
#define usbhsf_get_cfifo(p) (&((p)->fifo_info.cfifo))
#define usbhsf_fifo_is_busy(f) ((f)->pipe) /* see usbhs_pipe_select_fifo */
/*
* packet initialize
*/
void usbhs_pkt_init(struct usbhs_pkt *pkt)
{
INIT_LIST_HEAD(&pkt->node);
}
/*
* packet control function
*/
static int usbhsf_null_handle(struct usbhs_pkt *pkt, int *is_done)
{
struct usbhs_priv *priv = usbhs_pipe_to_priv(pkt->pipe);
struct device *dev = usbhs_priv_to_dev(priv);
dev_err(dev, "null handler\n");
return -EINVAL;
}
static const struct usbhs_pkt_handle usbhsf_null_handler = {
.prepare = usbhsf_null_handle,
.try_run = usbhsf_null_handle,
};
void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt,
void (*done)(struct usbhs_priv *priv,
struct usbhs_pkt *pkt),
void *buf, int len, int zero, int sequence)
{
struct 