1 /*
2 * Copyright (c) 2021, Nordic Semiconductor ASA
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 /*
8 * This is not a real SPI driver. It is used to instantiate struct
9 * devices for the "vnd,spi" devicetree compatible used in test code.
10 */
11
12 #include <zephyr/kernel.h>
13 #include <zephyr/drivers/spi.h>
14 #include <zephyr/drivers/spi/rtio.h>
15
16 #define DT_DRV_COMPAT vnd_spi
17
vnd_spi_transceive(const struct device * dev,const struct spi_config * spi_cfg,const struct spi_buf_set * tx_bufs,const struct spi_buf_set * rx_bufs)18 static int vnd_spi_transceive(const struct device *dev,
19 const struct spi_config *spi_cfg,
20 const struct spi_buf_set *tx_bufs,
21 const struct spi_buf_set *rx_bufs)
22 {
23 return -ENOTSUP;
24 }
25
26 #ifdef CONFIG_SPI_ASYNC
vnd_spi_transceive_async(const struct device * dev,const struct spi_config * spi_cfg,const struct spi_buf_set * tx_bufs,const struct spi_buf_set * rx_bufs,spi_callback_t cb,void * userdata)27 static int vnd_spi_transceive_async(const struct device *dev,
28 const struct spi_config *spi_cfg,
29 const struct spi_buf_set *tx_bufs,
30 const struct spi_buf_set *rx_bufs,
31 spi_callback_t cb,
32 void *userdata)
33 {
34 return -ENOTSUP;
35 }
36 #endif
37
vnd_spi_release(const struct device * dev,const struct spi_config * spi_cfg)38 static int vnd_spi_release(const struct device *dev,
39 const struct spi_config *spi_cfg)
40 {
41 return -ENOTSUP;
42 }
43
44 static DEVICE_API(spi, vnd_spi_api) = {
45 .transceive = vnd_spi_transceive,
46 #ifdef CONFIG_SPI_ASYNC
47 .transceive_async = vnd_spi_transceive_async,
48 #endif
49 #ifdef CONFIG_SPI_RTIO
50 .iodev_submit = spi_rtio_iodev_default_submit,
51 #endif
52 .release = vnd_spi_release,
53 };
54
55 #define VND_SPI_INIT(n) \
56 SPI_DEVICE_DT_INST_DEFINE(n, NULL, NULL, NULL, NULL, POST_KERNEL, \
57 CONFIG_SPI_INIT_PRIORITY, &vnd_spi_api);
58
59 DT_INST_FOREACH_STATUS_OKAY(VND_SPI_INIT)
60
