linux/drivers/mailbox/armada-37xx-rwtm-mailbox.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * rWTM BIU Mailbox driver for Armada 37xx
 *
 * Author: Marek Behún <[email protected]>
 */

#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/mailbox_controller.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/armada-37xx-rwtm-mailbox.h>

#define DRIVER_NAME …

/* relative to rWTM BIU Mailbox Registers */
#define RWTM_MBOX_PARAM(i) …
#define RWTM_MBOX_COMMAND …
#define RWTM_MBOX_RETURN_STATUS …
#define RWTM_MBOX_STATUS(i) …
#define RWTM_MBOX_FIFO_STATUS …
#define FIFO_STS_RDY …
#define FIFO_STS_CNTR_MASK …
#define FIFO_STS_CNTR_MAX …

#define RWTM_HOST_INT_RESET …
#define RWTM_HOST_INT_MASK …
#define SP_CMD_COMPLETE …
#define SP_CMD_QUEUE_FULL_ACCESS …
#define SP_CMD_QUEUE_FULL …

struct a37xx_mbox { … };

static void a37xx_mbox_receive(struct mbox_chan *chan)
{ … }

static irqreturn_t a37xx_mbox_irq_handler(int irq, void *data)
{ … }

static int a37xx_mbox_send_data(struct mbox_chan *chan, void *data)
{ … }

static int a37xx_mbox_startup(struct mbox_chan *chan)
{ … }

static void a37xx_mbox_shutdown(struct mbox_chan *chan)
{ … }

static const struct mbox_chan_ops a37xx_mbox_ops = …;

static int armada_37xx_mbox_probe(struct platform_device *pdev)
{ … }


static const struct of_device_id armada_37xx_mbox_match[] = …;

MODULE_DEVICE_TABLE(of, armada_37xx_mbox_match);

static struct platform_driver armada_37xx_mbox_driver = …;

module_platform_driver(…) …;

MODULE_LICENSE(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_AUTHOR(…) …;