linux/drivers/net/dsa/b53/b53_spi.c

/*
 * B53 register access through SPI
 *
 * Copyright (C) 2011-2013 Jonas Gorski <[email protected]>
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <asm/unaligned.h>

#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/spi/spi.h>
#include <linux/platform_data/b53.h>

#include "b53_priv.h"

#define B53_SPI_DATA …

#define B53_SPI_STATUS …
#define B53_SPI_CMD_SPIF …
#define B53_SPI_CMD_RACK …

#define B53_SPI_CMD_READ …
#define B53_SPI_CMD_WRITE …
#define B53_SPI_CMD_NORMAL …
#define B53_SPI_CMD_FAST …

#define B53_SPI_PAGE_SELECT …

static inline int b53_spi_read_reg(struct spi_device *spi, u8 reg, u8 *val,
				   unsigned int len)
{ … }

static inline int b53_spi_clear_status(struct spi_device *spi)
{ … }

static inline int b53_spi_set_page(struct spi_device *spi, u8 page)
{ … }

static inline int b53_prepare_reg_access(struct spi_device *spi, u8 page)
{ … }

static int b53_spi_prepare_reg_read(struct spi_device *spi, u8 reg)
{ … }

static int b53_spi_read(struct b53_device *dev, u8 page, u8 reg, u8 *data,
			unsigned int len)
{ … }

static int b53_spi_read8(struct b53_device *dev, u8 page, u8 reg, u8 *val)
{ … }

static int b53_spi_read16(struct b53_device *dev, u8 page, u8 reg, u16 *val)
{ … }

static int b53_spi_read32(struct b53_device *dev, u8 page, u8 reg, u32 *val)
{ … }

static int b53_spi_read48(struct b53_device *dev, u8 page, u8 reg, u64 *val)
{ … }

static int b53_spi_read64(struct b53_device *dev, u8 page, u8 reg, u64 *val)
{ … }

static int b53_spi_write8(struct b53_device *dev, u8 page, u8 reg, u8 value)
{ … }

static int b53_spi_write16(struct b53_device *dev, u8 page, u8 reg, u16 value)
{ … }

static int b53_spi_write32(struct b53_device *dev, u8 page, u8 reg, u32 value)
{ … }

static int b53_spi_write48(struct b53_device *dev, u8 page, u8 reg, u64 value)
{ … }

static int b53_spi_write64(struct b53_device *dev, u8 page, u8 reg, u64 value)
{ … }

static const struct b53_io_ops b53_spi_ops = …;

static int b53_spi_probe(struct spi_device *spi)
{ … }

static void b53_spi_remove(struct spi_device *spi)
{ … }

static void b53_spi_shutdown(struct spi_device *spi)
{ … }

static const struct of_device_id b53_spi_of_match[] = …;
MODULE_DEVICE_TABLE(of, b53_spi_of_match);

static const struct spi_device_id b53_spi_ids[] = …;
MODULE_DEVICE_TABLE(spi, b53_spi_ids);

static struct spi_driver b53_spi_driver = …;

module_spi_driver(…) …;

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