| /* |
| * Copyright (C) 2018 Samsung Electronics Co., Ltd. |
| * |
| * Authors: Surendran K <surendran.k@samsung.com> |
| * Shaik Ameer Basha <shaik.ameer@samsung.com> |
| * |
| * Airbrush SPI Slave driver. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| */ |
| |
| #ifndef _AIRBRUSH_SPI_H |
| #define _AIRBRUSH_SPI_H |
| |
| #include <linux/interrupt.h> |
| #include <linux/errno.h> |
| #include <linux/module.h> |
| #include <linux/platform_device.h> |
| #include <linux/spi/spi.h> |
| #include <linux/io.h> |
| #include <linux/of.h> |
| |
| |
| #define DONT_CARE (0) |
| #define ONE_BYTE (1 << 3) |
| #define TWO_BYTE (1 << 4) |
| #define FOUR_BYTE (1 << 5) |
| #define EIGHT_BYTE (1 << 6) |
| |
| enum airbrush_spi_command { |
| AB_SPI_CMD_FSM_READ_SINGLE, |
| AB_SPI_CMD_FSM_WRITE_SINGLE, |
| AB_SPI_CMD_FSM_BURST_WRITE, |
| AB_SPI_CMD_READ_SINGLE, |
| AB_SPI_CMD_WRITE_SINGLE, |
| AB_SPI_CMD_READ_RANGE, |
| AB_SPI_CMD_WRITE_RANGE, |
| AB_SPI_CMD_MEMSET_RANGE, |
| AB_SPI_CMD_BIT_SET, |
| AB_SPI_CMD_BIT_CLEAR, |
| AB_SPI_CMD_BIT_CLEAR_SET, |
| AB_SPI_CMD_READ_VER, |
| AB_SPI_CMD_READ_ID, |
| AB_SPI_CMD_READ_STATUS, |
| AB_SPI_CMD_GO_BOOT, |
| AB_SPI_CMD_MAX, |
| }; |
| |
| struct airbrush_spi_packet { |
| uint32_t command; |
| uint8_t granularity; |
| uint64_t base_address; |
| uint16_t data_length; |
| uint32_t *data; |
| }; |
| |
| |
| int airbrush_spi_run_cmd(struct airbrush_spi_packet *pkt); |
| |
| #endif /* _AIRBRUSH_SPI_H */ |
