linux-imx

/* SPDX-License-Identifier: GPL-2.0 */

#ifndef _FIREWIRE_CORE_H

#define _FIREWIRE_CORE_H

​

#include <linux/compiler.h>

#include <linux/device.h>

#include <linux/dma-mapping.h>

#include <linux/fs.h>

#include <linux/list.h>

#include <linux/idr.h>

#include <linux/mm_types.h>

#include <linux/rwsem.h>

#include <linux/slab.h>

#include <linux/types.h>

​

#include <linux/refcount.h>

​

struct device;

struct fw_card;

struct fw_device;

struct fw_iso_buffer;

struct fw_iso_context;

struct fw_iso_packet;

struct fw_node;

struct fw_packet;

​

​

/* -card */

​

extern __printf(2, 3)

void fw_err(const struct fw_card *card, const char *fmt, ...);

extern __printf(2, 3)

void fw_notice(const struct fw_card *card, const char *fmt, ...);

​

/* bitfields within the PHY registers */

#define PHY_LINK_ACTIVE     0x80

#define PHY_CONTENDER       0x40

#define PHY_BUS_RESET       0x40

#define PHY_EXTENDED_REGISTERS  0xe0

#define PHY_BUS_SHORT_RESET 0x40

#define PHY_INT_STATUS_BITS 0x3c

#define PHY_ENABLE_ACCEL    0x02

#define PHY_ENABLE_MULTI    0x01

#define PHY_PAGE_SELECT     0xe0

​

#define BANDWIDTH_AVAILABLE_INITIAL 4915

#define BROADCAST_CHANNEL_INITIAL   (1 << 31 | 31)

#define BROADCAST_CHANNEL_VALID     (1 << 30)

​

#define CSR_STATE_BIT_CMSTR (1 << 8)

#define CSR_STATE_BIT_ABDICATE  (1 << 10)

​

struct fw_card_driver {

    /*

     * Enable the given card with the given initial config rom.

     * This function is expected to activate the card, and either

     * enable the PHY or set the link_on bit and initiate a bus

     * reset.

     */

    int (*enable)(struct fw_card *card,

              const __be32 *config_rom, size_t length);

​

    int (*read_phy_reg)(struct fw_card *card, int address);