//******************************************************************************
/// \brief Get T5 message as byte array
/// \param mxt Maxtouch Device
/// \param buf Pointer to buffer
/// \param buflen Length of buffer
/// \param count length of message in bytes
/// \return #mxt_rc
int mxt_get_msg_bytes(struct mxt_device *mxt, unsigned char *buf,
size_t buflen, int *count)
{
int ret;
switch (mxt->conn->type) {
case E_SYSFS:
if (sysfs_has_debug_v2(mxt))
ret = sysfs_get_msg_bytes_v2(mxt, buf, buflen, count);
else
ret = dmesg_get_msg_bytes(mxt, buf, buflen, count);
break;
#ifdef HAVE_LIBUSB
case E_USB:
#endif /* HAVE_LIBUSB */
case E_I2C_DEV:
case E_HIDRAW:
ret = t44_get_msg_bytes(mxt, buf, buflen, count);
break;
default:
mxt_err(mxt->ctx, "Device type not supported");
ret = MXT_ERROR_NOT_SUPPORTED;
break;
}
if (ret == MXT_SUCCESS)
mxt_log_buffer(mxt->ctx, LOG_DEBUG, MSG_PREFIX, buf, *count);
return ret;
}
//******************************************************************************
/// \brief Get next MSG as a string
/// \return String or NULL for error
char *t44_get_msg_string(struct mxt_device *mxt)
{
int ret, i;
int size;
size_t length;
unsigned char databuf[20];
ret = t44_get_msg_bytes(mxt, &databuf[0], sizeof(databuf), &size);
if (ret)
return NULL;
length = snprintf(msg_string, sizeof(msg_string), MSG_PREFIX);
for (i = 0; i < size; i++)
{
length += snprintf(msg_string + length, sizeof(msg_string) - length,
"%02X ", databuf[i]);
}
return &msg_string[0];
}
//******************************************************************************
/// \brief Discard all messages
/// \return #mxt_rc
int t44_msg_reset(struct mxt_device *mxt)
{
int count, i, ret, size;
unsigned char databuf[20];
ret = t44_get_msg_count(mxt, &count);
if (ret)
{
mxt_verb(mxt->ctx, "rc = %d", ret);
return ret;
}
for (i = 0; i < count; i++)
{
ret = t44_get_msg_bytes(mxt, &databuf[0], sizeof(databuf), &size);
if (ret)
{
mxt_verb(mxt->ctx, "rc = %d", ret);
return ret;
}
}
return MXT_SUCCESS;
}
