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/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright © 2021-2022 Dmitry Salychev
*
* 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.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, 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 DAMAGE.
*/
#ifndef _DPAA2_IO_H
#define _DPAA2_IO_H
#include <sys/rman.h>
#include <sys/bus.h>
#include <sys/queue.h>
#include "dpaa2_types.h"
#include "dpaa2_mcp.h"
/* Maximum resources per DPIO: 3 SYS_MEM + 1 DPMCP. */
#define DPAA2_IO_MAX_RESOURCES 4
/* Maximum number of MSIs supported by the DPIO objects. */
#define DPAA2_IO_MSI_COUNT 1
enum dpaa2_io_chan_mode {
DPAA2_IO_NO_CHANNEL,
DPAA2_IO_LOCAL_CHANNEL
};
/**
* @brief Attributes of the DPIO object.
*
* swp_ce_paddr: Physical address of the cache-enabled area.
* swp_ci_paddr: Physical address of the cache-inhibited area.
* swp_version: Hardware IP version of the software portal.
* swp_clk: QBMAN clock frequency value in Hz.
* id: DPIO object ID.
* swp_id: Software portal ID.
* priors_num: Number of priorities for the notification channel (1-8);
* relevant only if channel mode is "local channel".
* chan_mode: Notification channel mode.
*/
struct dpaa2_io_attr {
uint64_t swp_ce_paddr;
uint64_t swp_ci_paddr;
uint32_t swp_version;
uint32_t swp_clk;
uint32_t id;
uint16_t swp_id;
uint8_t priors_num;
enum dpaa2_io_chan_mode chan_mode;
};
/**
* @brief Context used by DPIO to configure data availability notifications
* (CDAN) on a particular WQ channel.
*/
struct dpaa2_io_notif_ctx {
void (*poll)(void *);
device_t io_dev;
void *channel;
uint64_t qman_ctx;
uint16_t fq_chan_id;
bool cdan_en;
};
/**
* @brief Software context for the DPAA2 I/O driver.
*/
struct dpaa2_io_softc {
device_t dev;
struct dpaa2_swp_desc swp_desc;
struct dpaa2_swp *swp;
struct dpaa2_io_attr attr;
/* Help to send commands to MC. */
struct dpaa2_cmd *cmd;
uint16_t rc_token;
uint16_t io_token;
struct resource *res[DPAA2_IO_MAX_RESOURCES];
struct resource_map map[DPAA2_IO_MAX_RESOURCES];
int irq_rid[DPAA2_IO_MSI_COUNT];
struct resource *irq_resource;
void *intr; /* interrupt handle */
};
extern struct resource_spec dpaa2_io_spec[];
#endif /* _DPAA2_IO_H */
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