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/*
* Copyright (c) 2011, 2012, Qualcomm Atheros Communications Inc.
* Copyright (c) 2014, I2SE GmbH
*
* 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.
*
*/
/* Qualcomm Atheros SPI register definition.
*
* This module is designed to define the Qualcomm Atheros SPI
* register placeholders.
*/
#ifndef _QCA_7K_H
#define _QCA_7K_H
#include <linux/types.h>
#include "qca_spi.h"
#define QCA7K_SPI_READ (1 << 15)
#define QCA7K_SPI_WRITE (0 << 15)
#define QCA7K_SPI_INTERNAL (1 << 14)
#define QCA7K_SPI_EXTERNAL (0 << 14)
#define QCASPI_CMD_LEN 2
#define QCASPI_HW_PKT_LEN 4
#define QCASPI_HW_BUF_LEN 0xC5B
/* SPI registers; */
#define SPI_REG_BFR_SIZE 0x0100
#define SPI_REG_WRBUF_SPC_AVA 0x0200
#define SPI_REG_RDBUF_BYTE_AVA 0x0300
#define SPI_REG_SPI_CONFIG 0x0400
#define SPI_REG_SPI_STATUS 0x0500
#define SPI_REG_INTR_CAUSE 0x0C00
#define SPI_REG_INTR_ENABLE 0x0D00
#define SPI_REG_RDBUF_WATERMARK 0x1200
#define SPI_REG_WRBUF_WATERMARK 0x1300
#define SPI_REG_SIGNATURE 0x1A00
#define SPI_REG_ACTION_CTRL 0x1B00
/* SPI_CONFIG register definition; */
#define QCASPI_SLAVE_RESET_BIT BIT(6)
/* INTR_CAUSE/ENABLE register definition. */
#define SPI_INT_WRBUF_BELOW_WM BIT(10)
#define SPI_INT_CPU_ON BIT(6)
#define SPI_INT_ADDR_ERR BIT(3)
#define SPI_INT_WRBUF_ERR BIT(2)
#define SPI_INT_RDBUF_ERR BIT(1)
#define SPI_INT_PKT_AVLBL BIT(0)
void qcaspi_spi_error(struct qcaspi *qca);
int qcaspi_read_register(struct qcaspi *qca, u16 reg, u16 *result);
int qcaspi_write_register(struct qcaspi *qca, u16 reg, u16 value);
int qcaspi_tx_cmd(struct qcaspi *qca, u16 cmd);
#endif /* _QCA_7K_H */
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