/*-----------------------------------------------------------------------------
Sends a command to the part and returns the reply bytes
-----------------------------------------------------------------------------*/
static int si47xx_command(u8 cmd_size, u8 *cmd, u8 reply_size, u8 *reply)
{
int ret = 0;
ret = i2c_master_send((struct i2c_client *)(Si47xx_dev->client),
cmd, cmd_size);
if (ret < 0) {
dev_err(Si47xx_dev->dev, "%s si47xx_command failed %d\n",
__func__, ret);
return ret;
}
si47xx_waitForCTS();
if (reply_size) {
ret = i2c_master_recv((struct i2c_client *)(Si47xx_dev->client),
reply, reply_size);
if (ret < 0)
dev_err(Si47xx_dev->dev,
"%s si47xx_command failed %d\n", __func__, ret);
return ret;
}
return ret;
}
//-----------------------------------------------------------------------------
// Sends a command to the part and returns the reply bytes
//-----------------------------------------------------------------------------
static void si47XX_Command(u8 cmd_size, u8 *cmd, u8 reply_size, u8 *reply)
{
// It is always a good idea to check for cts prior to sending a command to
// the part.
si47xx_waitForCTS();
// Write the command to the part
si47xx_lowWrite(cmd_size, cmd);
// Wait for CTS after sending the command
si47xx_waitForCTS();
// If the calling function would like to have results then read them.
if(reply_size)
{
si47xx_lowRead(reply_size, reply);
}
}
