102 lines
2.8 KiB
C
102 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-1.0+
|
|
/*
|
|
* Renesas USB driver
|
|
*
|
|
* Copyright (C) 2011 Renesas Solutions Corp.
|
|
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
|
|
*/
|
|
#ifndef RENESAS_USB_FIFO_H
|
|
#define RENESAS_USB_FIFO_H
|
|
|
|
#include <linux/interrupt.h>
|
|
#include <linux/sh_dma.h>
|
|
#include <linux/workqueue.h>
|
|
#include <asm/dma.h>
|
|
#include "pipe.h"
|
|
|
|
struct usbhs_fifo {
|
|
char *name;
|
|
u32 port; /* xFIFO */
|
|
u32 sel; /* xFIFOSEL */
|
|
u32 ctr; /* xFIFOCTR */
|
|
|
|
struct usbhs_pipe *pipe;
|
|
|
|
struct dma_chan *tx_chan;
|
|
struct dma_chan *rx_chan;
|
|
|
|
struct sh_dmae_slave tx_slave;
|
|
struct sh_dmae_slave rx_slave;
|
|
};
|
|
|
|
#define USBHS_MAX_NUM_DFIFO 4
|
|
struct usbhs_fifo_info {
|
|
struct usbhs_fifo cfifo;
|
|
struct usbhs_fifo dfifo[USBHS_MAX_NUM_DFIFO];
|
|
};
|
|
#define usbhsf_get_dnfifo(p, n) (&((p)->fifo_info.dfifo[n]))
|
|
#define usbhs_for_each_dfifo(priv, dfifo, i) \
|
|
for ((i) = 0; \
|
|
((i) < USBHS_MAX_NUM_DFIFO) && \
|
|
((dfifo) = usbhsf_get_dnfifo(priv, (i))); \
|
|
(i)++)
|
|
|
|
struct usbhs_pkt_handle;
|
|
struct usbhs_pkt {
|
|
struct list_head node;
|
|
struct usbhs_pipe *pipe;
|
|
const struct usbhs_pkt_handle *handler;
|
|
void (*done)(struct usbhs_priv *priv,
|
|
struct usbhs_pkt *pkt);
|
|
struct work_struct work;
|
|
dma_addr_t dma;
|
|
dma_cookie_t cookie;
|
|
void *buf;
|
|
int length;
|
|
int trans;
|
|
int actual;
|
|
int zero;
|
|
int sequence;
|
|
};
|
|
|
|
struct usbhs_pkt_handle {
|
|
int (*prepare)(struct usbhs_pkt *pkt, int *is_done);
|
|
int (*try_run)(struct usbhs_pkt *pkt, int *is_done);
|
|
int (*dma_done)(struct usbhs_pkt *pkt, int *is_done);
|
|
};
|
|
|
|
/*
|
|
* fifo
|
|
*/
|
|
int usbhs_fifo_probe(struct usbhs_priv *priv);
|
|
void usbhs_fifo_remove(struct usbhs_priv *priv);
|
|
void usbhs_fifo_init(struct usbhs_priv *priv);
|
|
void usbhs_fifo_quit(struct usbhs_priv *priv);
|
|
void usbhs_fifo_clear_dcp(struct usbhs_pipe *pipe);
|
|
|
|
/*
|
|
* packet info
|
|
*/
|
|
extern const struct usbhs_pkt_handle usbhs_fifo_pio_push_handler;
|
|
extern const struct usbhs_pkt_handle usbhs_fifo_pio_pop_handler;
|
|
extern const struct usbhs_pkt_handle usbhs_ctrl_stage_end_handler;
|
|
|
|
extern const struct usbhs_pkt_handle usbhs_fifo_dma_push_handler;
|
|
extern const struct usbhs_pkt_handle usbhs_fifo_dma_pop_handler;
|
|
|
|
extern const struct usbhs_pkt_handle usbhs_dcp_status_stage_in_handler;
|
|
extern const struct usbhs_pkt_handle usbhs_dcp_status_stage_out_handler;
|
|
|
|
extern const struct usbhs_pkt_handle usbhs_dcp_data_stage_in_handler;
|
|
extern const struct usbhs_pkt_handle usbhs_dcp_data_stage_out_handler;
|
|
|
|
void usbhs_pkt_init(struct usbhs_pkt *pkt);
|
|
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 usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt);
|
|
void usbhs_pkt_start(struct usbhs_pipe *pipe);
|
|
|
|
#endif /* RENESAS_USB_FIFO_H */
|