spi.h (e477abf734cc777a55286bfbd6b80a6760c96acf) spi.h (46b39c90f44e166cdad703e5aceab54047cf54f2)
1/* $FreeBSD$ */
1/*-
2 * Copyright (c) 2006 M. Warner Losh
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
2
3struct spi_command {
4 void *tx_cmd;
5 uint32_t tx_cmd_sz;
6 void *rx_cmd;
7 uint32_t rx_cmd_sz;
8 void *tx_data;
9 uint32_t tx_data_sz;
10 void *rx_data;
11 uint32_t rx_data_sz;
12};
13
14#define SPI_CHIP_SELECT_HIGH 0x1 /* Chip select high (else low) */
28
29struct spi_command {
30 void *tx_cmd;
31 uint32_t tx_cmd_sz;
32 void *rx_cmd;
33 uint32_t rx_cmd_sz;
34 void *tx_data;
35 uint32_t tx_data_sz;
36 void *rx_data;
37 uint32_t rx_data_sz;
38};
39
40#define SPI_CHIP_SELECT_HIGH 0x1 /* Chip select high (else low) */