cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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pipe.h (3694B)

      1/* SPDX-License-Identifier: GPL-1.0+ */
      2/*
      3 * Renesas USB driver
      4 *
      5 * Copyright (C) 2011 Renesas Solutions Corp.
      6 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
      7 */
      8#ifndef RENESAS_USB_PIPE_H
      9#define RENESAS_USB_PIPE_H
     10
     11#include "common.h"
     12#include "fifo.h"
     13
     14/*
     15 *	struct
     16 */
     17struct usbhs_pipe {
     18	u32 pipe_type;	/* USB_ENDPOINT_XFER_xxx */
     19
     20	struct usbhs_priv *priv;
     21	struct usbhs_fifo *fifo;
     22	struct list_head list;
     23
     24	int maxp;
     25
     26	u32 flags;
     27#define USBHS_PIPE_FLAGS_IS_USED		(1 << 0)
     28#define USBHS_PIPE_FLAGS_IS_DIR_IN		(1 << 1)
     29#define USBHS_PIPE_FLAGS_IS_DIR_HOST		(1 << 2)
     30#define USBHS_PIPE_FLAGS_IS_RUNNING		(1 << 3)
     31
     32	const struct usbhs_pkt_handle *handler;
     33
     34	void *mod_private;
     35};
     36
     37struct usbhs_pipe_info {
     38	struct usbhs_pipe *pipe;
     39	int size;	/* array size of "pipe" */
     40
     41	int (*dma_map_ctrl)(struct device *dma_dev, struct usbhs_pkt *pkt,
     42			    int map);
     43};
     44
     45/*
     46 * pipe list
     47 */
     48#define __usbhs_for_each_pipe(start, pos, info, i)	\
     49	for ((i) = start;						\
     50	     ((i) < (info)->size) && ((pos) = (info)->pipe + (i));	\
     51	     (i)++)
     52
     53#define usbhs_for_each_pipe(pos, priv, i)			\
     54	__usbhs_for_each_pipe(1, pos, &((priv)->pipe_info), i)
     55
     56#define usbhs_for_each_pipe_with_dcp(pos, priv, i)		\
     57	__usbhs_for_each_pipe(0, pos, &((priv)->pipe_info), i)
     58
     59/*
     60 * data
     61 */
     62#define usbhs_priv_to_pipeinfo(pr)	(&(pr)->pipe_info)
     63
     64/*
     65 * pipe control
     66 */
     67char *usbhs_pipe_name(struct usbhs_pipe *pipe);
     68struct usbhs_pipe
     69*usbhs_pipe_malloc(struct usbhs_priv *priv, int endpoint_type, int dir_in);
     70void usbhs_pipe_free(struct usbhs_pipe *pipe);
     71int usbhs_pipe_probe(struct usbhs_priv *priv);
     72void usbhs_pipe_remove(struct usbhs_priv *priv);
     73int usbhs_pipe_is_dir_in(struct usbhs_pipe *pipe);
     74int usbhs_pipe_is_dir_host(struct usbhs_pipe *pipe);
     75int usbhs_pipe_is_running(struct usbhs_pipe *pipe);
     76void usbhs_pipe_running(struct usbhs_pipe *pipe, int running);
     77
     78void usbhs_pipe_init(struct usbhs_priv *priv,
     79		     int (*dma_map_ctrl)(struct device *dma_dev,
     80					 struct usbhs_pkt *pkt, int map));
     81int usbhs_pipe_get_maxpacket(struct usbhs_pipe *pipe);
     82void usbhs_pipe_clear(struct usbhs_pipe *pipe);
     83void usbhs_pipe_clear_without_sequence(struct usbhs_pipe *pipe,
     84				       int needs_bfre, int bfre_enable);
     85int usbhs_pipe_is_accessible(struct usbhs_pipe *pipe);
     86bool usbhs_pipe_contains_transmittable_data(struct usbhs_pipe *pipe);
     87void usbhs_pipe_enable(struct usbhs_pipe *pipe);
     88void usbhs_pipe_disable(struct usbhs_pipe *pipe);
     89void usbhs_pipe_stall(struct usbhs_pipe *pipe);
     90int usbhs_pipe_is_stall(struct usbhs_pipe *pipe);
     91void usbhs_pipe_set_trans_count_if_bulk(struct usbhs_pipe *pipe, int len);
     92void usbhs_pipe_select_fifo(struct usbhs_pipe *pipe, struct usbhs_fifo *fifo);
     93void usbhs_pipe_config_update(struct usbhs_pipe *pipe, u16 devsel,
     94			      u16 epnum, u16 maxp);
     95void usbhs_pipe_config_change_bfre(struct usbhs_pipe *pipe, int enable);
     96
     97#define usbhs_pipe_sequence_data0(pipe)	usbhs_pipe_data_sequence(pipe, 0)
     98#define usbhs_pipe_sequence_data1(pipe)	usbhs_pipe_data_sequence(pipe, 1)
     99void usbhs_pipe_data_sequence(struct usbhs_pipe *pipe, int data);
    100
    101#define usbhs_pipe_to_priv(p)	((p)->priv)
    102#define usbhs_pipe_number(p)	(int)((p) - (p)->priv->pipe_info.pipe)
    103#define usbhs_pipe_is_dcp(p)	((p)->priv->pipe_info.pipe == (p))
    104#define usbhs_pipe_to_fifo(p)	((p)->fifo)
    105#define usbhs_pipe_is_busy(p)	usbhs_pipe_to_fifo(p)
    106
    107#define usbhs_pipe_type(p)		((p)->pipe_type)
    108#define usbhs_pipe_type_is(p, t)	((p)->pipe_type == t)
    109
    110/*
    111 * dcp control
    112 */
    113struct usbhs_pipe *usbhs_dcp_malloc(struct usbhs_priv *priv);
    114void usbhs_dcp_control_transfer_done(struct usbhs_pipe *pipe);
    115void usbhs_dcp_dir_for_host(struct usbhs_pipe *pipe, int dir_out);
    116
    117#endif /* RENESAS_USB_PIPE_H */