linux/drivers/spi/spi-fsl-lib.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Freescale SPI/eSPI controller driver library.
 *
 * Maintainer: Kumar Gala
 *
 * Copyright 2010 Freescale Semiconductor, Inc.
 * Copyright (C) 2006 Polycom, Inc.
 *
 * CPM SPI and QE buffer descriptors mode support:
 * Copyright (c) 2009  MontaVista Software, Inc.
 * Author: Anton Vorontsov <[email protected]>
 */
#ifndef __SPI_FSL_LIB_H__
#define __SPI_FSL_LIB_H__

#include <asm/io.h>

/* SPI/eSPI Controller driver's private data. */
struct mpc8xxx_spi { … };

struct spi_mpc8xxx_cs { … };

static inline void mpc8xxx_spi_write_reg(__be32 __iomem *reg, u32 val)
{ … }

static inline u32 mpc8xxx_spi_read_reg(__be32 __iomem *reg)
{ … }

struct mpc8xxx_spi_probe_info { … };

extern u32 mpc8xxx_spi_tx_buf_u8(struct mpc8xxx_spi *mpc8xxx_spi);
extern u32 mpc8xxx_spi_tx_buf_u16(struct mpc8xxx_spi *mpc8xxx_spi);
extern u32 mpc8xxx_spi_tx_buf_u32(struct mpc8xxx_spi *mpc8xxx_spi);
extern void mpc8xxx_spi_rx_buf_u8(u32 data, struct mpc8xxx_spi *mpc8xxx_spi);
extern void mpc8xxx_spi_rx_buf_u16(u32 data, struct mpc8xxx_spi *mpc8xxx_spi);
extern void mpc8xxx_spi_rx_buf_u32(u32 data, struct mpc8xxx_spi *mpc8xxx_spi);

extern struct mpc8xxx_spi_probe_info *to_of_pinfo(
		struct fsl_spi_platform_data *pdata);
extern const char *mpc8xxx_spi_strmode(unsigned int flags);
extern void mpc8xxx_spi_probe(struct device *dev, struct resource *mem,
		unsigned int irq);
extern int of_mpc8xxx_spi_probe(struct platform_device *ofdev);

#endif /* __SPI_FSL_LIB_H__ */