int board_power_off(void)
{
uint16_t tx;
struct spi_dev_s *spi = up_spiinitialize(0);
SPI_SETBITS(spi, 16);
tx = (1 << 6) | (1 << 1);
SPI_SNDBLOCK(spi, &tx, 1);
tx = (1 << 6) | (30 << 1);
SPI_SNDBLOCK(spi, &tx, 1);
return 0;
}
static uint8_t nrf24l01_access(FAR struct nrf24l01_dev_s *dev,
nrf24l01_access_mode_t mode, uint8_t cmd, FAR uint8_t *buf, int length)
{
uint8_t status;
/* Prepare SPI */
nrf24l01_select(dev);
/* Transfer */
status = SPI_SEND(dev->spi, cmd);
switch (mode)
{
case MODE_WRITE:
if (length > 0)
{
SPI_SNDBLOCK(dev->spi, buf, length);
}
break;
case MODE_READ:
SPI_RECVBLOCK(dev->spi, buf, length);
break;
}
nrf24l01_deselect(dev);
return status;
}
static void ssd1351_write(FAR struct ssd1351_dev_s *priv, uint8_t cmd,
FAR const uint8_t *data, size_t datlen)
{
size_t i;
/* Sanity check */
DEBUGASSERT(priv != NULL);
DEBUGASSERT((data == NULL && datlen == 0) || (data != NULL && datlen > 0));
DEBUGASSERT(datlen <= SSD1351_STRIDE);
/* Copy the command into the line buffer */
priv->rowbuffer[0] = (uint16_t)cmd | SSD1351_SPICMD;
/* Copy any data after the command into the line buffer */
for (i = 0; i < datlen; i++)
{
priv->rowbuffer[i+1] = (uint16_t)data[i] | SSD1351_SPIDATA;
}
/* Send the line buffer */
(void)SPI_SNDBLOCK(priv->spi, priv->rowbuffer, datlen+1);
}
static void ssd1351_write(FAR struct ssd1351_dev_s *priv, uint8_t cmd,
FAR const uint8_t *data, size_t datlen)
{
FAR struct spi_dev_s *spi = priv->spi;
/* Sanity check */
DEBUGASSERT(priv != NULL);
DEBUGASSERT((data == NULL && datlen == 0) || (data != NULL && datlen > 0));
/* Select command transfer */
(void)SPI_CMDDATA(spi, SPIDEV_DISPLAY, true);
/* Send the command */
(void)SPI_SEND(spi, cmd);
/* Do we have any data to send? */
if (datlen > 0)
{
/* Yes, select data transfer */
(void)SPI_CMDDATA(spi, SPIDEV_DISPLAY, false);
/* Transfer all of the data */
(void)SPI_SNDBLOCK(spi, data, datlen);
}
}
int board_power_off(int status)
{
struct spi_dev_s *spi = calypso_spibus_initialize(0);
uint16_t tx;
SPI_SETBITS(spi, 16);
(void)SPI_HWFEATURES(spi, 0);
tx = (1 << 6) | (1 << 1);
SPI_SNDBLOCK(spi, &tx, 1);
tx = (1 << 6) | (30 << 1);
SPI_SNDBLOCK(spi, &tx, 1);
return 0;
}
int pn532_write_frame(struct pn532_dev_s *dev, struct pn532_frame *f)
{
int res = OK;
pn532_lock(dev->spi);
pn532_select(dev);
nxsig_usleep(2000);
SPI_SEND(dev->spi, PN532_SPI_DATAWRITE);
SPI_SNDBLOCK(dev->spi, f, FRAME_SIZE(f));
pn532_deselect(dev);
pn532_unlock(dev->spi);
tracetx("WriteFrame", (uint8_t *) f, FRAME_SIZE(f));
/* Wait ACK frame */
res = pn532_wait_rx_ready(dev, 30);
if (res == OK)
{
if (!pn532_read_ack(dev))
{
pn532err("ERROR: command FAILED\n");
res = -EIO;
}
}
return res;
}
static void
write_reg(uint8_t address, uint8_t data)
{
uint8_t cmd[2] = { address | DIR_WRITE, data };
SPI_SELECT(lis331_dev.spi, PX4_SPIDEV_ACCEL, true);
SPI_SNDBLOCK(lis331_dev.spi, &cmd, sizeof(cmd));
SPI_SELECT(lis331_dev.spi, PX4_SPIDEV_ACCEL, false);
}
static void
bma180_write_reg(uint8_t address, uint8_t data)
{
uint8_t cmd[2] = { address | DIR_WRITE, data };
SPI_SELECT(bma180_dev.spi, bma180_dev.spi_id, true);
SPI_SNDBLOCK(bma180_dev.spi, &cmd, sizeof(cmd));
SPI_SELECT(bma180_dev.spi, bma180_dev.spi_id, false);
}
static void spi_write(int port, int addr, int frequency, int bits, int conf, char value)
{
unsigned char buf[2];
buf[0] = addr;
buf[1] = value;
SPI_LOCK(spi_dev, true);
SPI_SETFREQUENCY(spi_dev, frequency);
SPI_SETBITS(spi_dev, bits);
SPI_SETMODE(spi_dev, conf);
SPI_SELECT(spi_dev, port, true);
SPI_SNDBLOCK(spi_dev, buf, 2);
SPI_SELECT(spi_dev, port, false);
SPI_LOCK(spi_dev, false);
}
int cc1101_access(struct cc1101_dev_s * dev, uint8_t addr, uint8_t *buf, int length)
{
int stabyte;
/* Address cannot explicitly define READ command while length WRITE.
* Also access to these cells is only permitted as one byte, eventhough
* transfer is marked as BURST!
*/
if ((addr & CC1101_READ_SINGLE) && length != 1)
return ERROR;
/* Prepare SPI */
cc1101_access_begin(dev);
if (length>1 || length < -1)
SPI_SETFREQUENCY(dev->spi, CC1101_SPIFREQ_BURST);
else SPI_SETFREQUENCY(dev->spi, CC1101_SPIFREQ_SINGLE);
/* Transfer */
if (length <= 0) { /* 0 length are command strobes */
if (length < -1)
addr |= CC1101_WRITE_BURST;
stabyte = SPI_SEND(dev->spi, addr);
if (length) {
SPI_SNDBLOCK(dev->spi, buf, -length);
}
}
else {
addr |= CC1101_READ_SINGLE;
if (length > 1)
addr |= CC1101_READ_BURST;
stabyte = SPI_SEND(dev->spi, addr);
SPI_RECVBLOCK(dev->spi, buf, length);
}
cc1101_access_end(dev);
return stabyte;
}
static void pn532_writecommand(struct pn532_dev_s *dev, uint8_t cmd)
{
char cmd_buffer[16];
struct pn532_frame *f = (struct pn532_frame *) cmd_buffer;
pn532_frame_init(f, cmd);
pn532_frame_finish(f);
pn532_lock(dev->spi);
pn532_select(dev);
nxsig_usleep(10000);
SPI_SEND(dev->spi, PN532_SPI_DATAWRITE);
SPI_SNDBLOCK(dev->spi, f, FRAME_SIZE(f));
pn532_deselect(dev);
pn532_unlock(dev->spi);
tracetx("command sent", (uint8_t *) f, FRAME_SIZE(f));
}
