void main(void)
{
struct spi_config config = { 0 };
struct device *spi_mst_0 = device_get_binding("SPI_0");
uint8_t id;
int err;
printk("SPI Example application\n");
if (!spi_mst_0)
return;
config.config = SPI_MODE_CPOL | SPI_MODE_CPHA | SPI_WORD(16);
config.max_sys_freq = 256;
err = spi_configure(spi_mst_0, &config);
if (err) {
printk("Could not configure SPI device\n");
return;
}
err = spi_slave_select(spi_mst_0, 1);
if (err) {
printk("Could not select SPI slave\n");
return;
}
id = lsm9ds0_read_whoami_g(spi_mst_0);
printk("LSM9DS0 Who Am I: 0x%x\n", id);
}
int main(void)
{
struct spi_config config = { 0 };
struct device *spi_mst_0 = device_get_binding("SPI_0");
uint8_t manufacturer, device_id;
int err;
printk("SPI Example application\n");
if (!spi_mst_0)
return -EIO;
config.config = SPI_MODE_CPOL | SPI_MODE_CPHA | SPI_WORD(8);
config.max_sys_freq = 256;
err = spi_configure(spi_mst_0, &config);
if (err) {
printk("Could not configure SPI device\n");
return -EIO;
}
err = spi_slave_select(spi_mst_0, 1);
if (err) {
printk("Could not select SPI slave\n");
return -EIO;
}
err = w25q80bl_read_id(spi_mst_0, &manufacturer, &device_id);
if (err) {
printk("Could not get Manufacturer and Device ID from SPI Flash\n");
return -EIO;
}
printk("SPI Flash Manufacturer %x Device Id %x\n", manufacturer,
device_id);
return 0;
}
static int bmi160_transceive(struct device *dev, uint8_t *tx_buf,
uint8_t tx_buf_len, uint8_t *rx_buf,
uint8_t rx_buf_len)
{
struct bmi160_device_config *dev_cfg = dev->config->config_info;
struct bmi160_device_data *bmi160 = dev->driver_data;
struct spi_config spi_cfg;
spi_cfg.config = SPI_WORD(8);
spi_cfg.max_sys_freq = dev_cfg->spi_freq;
if (spi_configure(bmi160->spi, &spi_cfg) < 0) {
SYS_LOG_DBG("Cannot configure SPI bus.");
return -EIO;
}
if (spi_slave_select(bmi160->spi, dev_cfg->spi_slave) < 0) {
SYS_LOG_DBG("Cannot select slave.");
return -EIO;
}
return spi_transceive(bmi160->spi, tx_buf, tx_buf_len,
rx_buf, rx_buf_len);
}
#if defined(CONFIG_BLUETOOTH_SPI_BLUENRG)
static struct device *cs_dev;
#endif /* CONFIG_BLUETOOTH_SPI_BLUENRG */
static struct device *irq_dev;
static struct device *rst_dev;
static struct gpio_callback gpio_cb;
static K_SEM_DEFINE(sem_initialised, 0, 1);
static K_SEM_DEFINE(sem_request, 0, 1);
static K_SEM_DEFINE(sem_busy, 1, 1);
static BT_STACK_NOINIT(rx_stack, 448);
static struct spi_config spi_conf = {
.config = SPI_WORD(8),
.max_sys_freq = CONFIG_BLUETOOTH_SPI_MAX_CLK_FREQ,
};
#if defined(CONFIG_BLUETOOTH_DEBUG_HCI_DRIVER)
#include <misc/printk.h>
static inline void spi_dump_message(const u8_t *pre, u8_t *buf,
u8_t size)
{
u8_t i, c;
printk("%s (%d): ", pre, size);
for (i = 0; i < size; i++) {
c = buf[i];
printk("%x ", c);
if (c >= 31 && c <= 126) {
