root/sys/dev/bhnd/bcma/bcmavar.h
/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2015-2016 Landon Fuller <landon@landonf.org>
 * Copyright (c) 2017 The FreeBSD Foundation
 * All rights reserved.
 *
 * Portions of this software were developed by Landon Fuller
 * under sponsorship from the FreeBSD Foundation.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer,
 *    without modification.
 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
 *    redistribution must be conditioned upon including a substantially
 *    similar Disclaimer requirement for further binary redistribution.
 *
 * NO WARRANTY
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGES.
 * 
 */

#ifndef _BCMA_BCMAVAR_H_
#define _BCMA_BCMAVAR_H_

#include <sys/param.h>
#include <sys/bus.h>
#include <sys/limits.h>

#include <machine/bus.h>
#include <sys/rman.h>

#include "bcma.h"

/*
 * Internal definitions shared by bcma(4) driver implementations.
 */

/** Base resource ID for per-core agent register allocations */
#define BCMA_AGENT_RID_BASE     100

/**
 * Return the device's core index.
 * 
 * @param _dinfo The bcma_devinfo instance to query.
 */
#define BCMA_DINFO_COREIDX(_dinfo)      \
        ((_dinfo)->corecfg->core_info.core_idx)

/** BCMA port identifier. */
typedef u_int           bcma_pid_t;
#define BCMA_PID_MAX    UINT_MAX        /**< Maximum bcma_pid_t value */

/** BCMA per-port region map identifier. */
typedef u_int           bcma_rmid_t;
#define BCMA_RMID_MAX   UINT_MAX        /**< Maximum bcma_rmid_t value */

struct bcma_devinfo;
struct bcma_corecfg;
struct bcma_intr;
struct bcma_map;
struct bcma_mport;
struct bcma_sport;

int                      bcma_probe(device_t dev);
int                      bcma_attach(device_t dev);
int                      bcma_detach(device_t dev);
u_int                    bcma_get_intr_count(device_t dev, device_t child);
int                      bcma_get_intr_ivec(device_t dev, device_t child,
                             u_int intr, uint32_t *ivec);

int                      bcma_add_children(device_t bus);

struct bcma_sport_list  *bcma_corecfg_get_port_list(struct bcma_corecfg *cfg,
                             bhnd_port_type type);

struct bcma_devinfo     *bcma_alloc_dinfo(device_t bus);
int                      bcma_init_dinfo(device_t bus, device_t child,
                             struct bcma_devinfo *dinfo,
                             struct bcma_corecfg *corecfg);
void                     bcma_free_dinfo(device_t bus, device_t child,
                             struct bcma_devinfo *dinfo);

struct bcma_corecfg     *bcma_alloc_corecfg(u_int core_index, int core_unit,
                             uint16_t vendor, uint16_t device, uint8_t hwrev);
void                     bcma_free_corecfg(struct bcma_corecfg *corecfg);

struct bcma_intr        *bcma_alloc_intr(uint8_t bank, uint8_t sel,
                             uint8_t line);
void                     bcma_free_intr(struct bcma_intr *intr);

struct bcma_sport       *bcma_alloc_sport(bcma_pid_t port_num, bhnd_port_type port_type);
void                     bcma_free_sport(struct bcma_sport *sport);

int                      bcma_dmp_wait_reset(device_t child,
                             struct bcma_devinfo *dinfo);
int                      bcma_dmp_write_reset(device_t child,
                             struct bcma_devinfo *dinfo, uint32_t value);

/** BCMA master port descriptor */
struct bcma_mport {
        bcma_pid_t      mp_num;         /**< AXI port identifier (bus-unique) */
        bcma_pid_t      mp_vid;         /**< AXI master virtual ID (core-unique) */
        STAILQ_ENTRY(bcma_mport) mp_link;
};

/** BCMA memory region descriptor */
struct bcma_map {
        bcma_rmid_t     m_region_num;   /**< region identifier (port-unique). */
        bhnd_addr_t     m_base;         /**< base address */
        bhnd_size_t     m_size;         /**< size */
        int             m_rid;          /**< bus resource id, or -1. */

        STAILQ_ENTRY(bcma_map) m_link;
};

/** BCMA interrupt descriptor */
struct bcma_intr {
        uint8_t         i_bank;         /**< OOB bank (see BCMA_OOB_BANK[A-D]) */
        uint8_t         i_sel;          /**< OOB selector (0-7) */
        uint8_t         i_busline;      /**< OOB bus line assigned to this selector */
        bool            i_mapped;       /**< if an irq has been mapped for this selector */
        int             i_rid;          /**< bus resource id, or -1 */
        rman_res_t      i_irq;          /**< the mapped bus irq, if any */

        STAILQ_ENTRY(bcma_intr) i_link;
};

/** BCMA slave port descriptor */
struct bcma_sport {
        bcma_pid_t      sp_num;         /**< slave port number (core-unique) */
        bhnd_port_type  sp_type;        /**< port type */

        u_long          sp_num_maps;    /**< number of regions mapped to this port */
        STAILQ_HEAD(, bcma_map) sp_maps;
        STAILQ_ENTRY(bcma_sport) sp_link;
};

STAILQ_HEAD(bcma_mport_list,    bcma_mport);
STAILQ_HEAD(bcma_intr_list,     bcma_intr);
STAILQ_HEAD(bcma_sport_list,    bcma_sport);

/** BCMA IP core/block configuration */
struct bcma_corecfg {
        struct bhnd_core_info   core_info;      /**< standard core info */

        u_long          num_master_ports;       /**< number of master port descriptors. */
        struct bcma_mport_list  master_ports;   /**< master port descriptors */

        u_long          num_dev_ports;          /**< number of device slave port descriptors. */
        struct bcma_sport_list  dev_ports;      /**< device port descriptors */

        u_long          num_bridge_ports;       /**< number of bridge slave port descriptors. */
        struct bcma_sport_list  bridge_ports;   /**< bridge port descriptors */

        u_long          num_wrapper_ports;      /**< number of wrapper slave port descriptors. */       
        struct bcma_sport_list  wrapper_ports;  /**< wrapper port descriptors */        
};

/**
 * BCMA per-device info
 */
struct bcma_devinfo {
        struct resource_list     resources;     /**< Slave port memory regions. */
        struct bcma_corecfg     *corecfg;       /**< IP core/block config */

        struct bhnd_resource    *res_agent;     /**< Agent (wrapper) resource, or NULL. Not
                                                  *  all bcma(4) cores have or require an agent. */

        u_int                    num_intrs;     /**< number of interrupt descriptors. */
        struct bcma_intr_list    intrs;         /**< interrupt descriptors */

        void                    *pmu_info;      /**< Bus-managed PMU state, or NULL */
};

/** BMCA per-instance state */
struct bcma_softc {
        struct bhnd_softc       bhnd_sc;        /**< bhnd state */
};

#endif /* _BCMA_BCMAVAR_H_ */