1278957Simp/*- 2278957Simp * Copyright (c) 2006 M. Warner Losh 3278957Simp * All rights reserved. 4278957Simp * 5278957Simp * Redistribution and use in source and binary forms, with or without 6278957Simp * modification, are permitted provided that the following conditions 7278957Simp * are met: 8278957Simp * 1. Redistributions of source code must retain the above copyright 9278957Simp * notice, this list of conditions and the following disclaimer. 10278957Simp * 2. Redistributions in binary form must reproduce the above copyright 11278957Simp * notice, this list of conditions and the following disclaimer in the 12278957Simp * documentation and/or other materials provided with the distribution. 13278957Simp * 14278957Simp * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15278957Simp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16278957Simp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17278957Simp * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18278957Simp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19278957Simp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20278957Simp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21278957Simp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22278957Simp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23278957Simp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24278957Simp * SUCH DAMAGE. 25278957Simp * 26278957Simp * $FreeBSD$ 27278957Simp */ 28160370Simp 29160370Simpstruct spi_command { 30160370Simp void *tx_cmd; 31160370Simp uint32_t tx_cmd_sz; 32160370Simp void *rx_cmd; 33160370Simp uint32_t rx_cmd_sz; 34160370Simp void *tx_data; 35160370Simp uint32_t tx_data_sz; 36160370Simp void *rx_data; 37160370Simp uint32_t rx_data_sz; 38160370Simp}; 39238965Simp 40300713Sadrian#define SPI_COMMAND_INITIALIZER { 0 } 41300713Sadrian 42238965Simp#define SPI_CHIP_SELECT_HIGH 0x1 /* Chip select high (else low) */ 43