static int rt2x00lib_request_eeprom_file(struct rt2x00_dev *rt2x00dev)
{
const struct firmware *ee;
const char *ee_name;
int retval;
if (!rt2800lib_read_eeprom_mtd(rt2x00dev))
return 0;
ee_name = rt2x00lib_get_eeprom_file_name(rt2x00dev);
if (!ee_name) {
rt2x00_err(rt2x00dev,
"Invalid EEPROM filename.\n"
"Please file bug report to %s.\n", DRV_PROJECT);
return -EINVAL;
}
rt2x00_info(rt2x00dev, "Loading EEPROM data from '%s'.\n", ee_name);
retval = request_firmware(&ee, ee_name, rt2x00dev->dev);
if (retval) {
rt2x00_err(rt2x00dev, "Failed to request EEPROM.\n");
return retval;
}
if (!ee || !ee->size || !ee->data) {
rt2x00_err(rt2x00dev, "Failed to read EEPROM file.\n");
retval = -ENOENT;
goto err_exit;
}
if (ee->size != rt2x00dev->ops->eeprom_size) {
rt2x00_err(rt2x00dev,
"EEPROM file size is invalid, it should be %d bytes\n",
rt2x00dev->ops->eeprom_size);
retval = -EINVAL;
goto err_release_ee;
}
rt2x00dev->eeprom_file = ee;
return 0;
err_release_ee:
release_firmware(ee);
err_exit:
return retval;
}
static int rt2x00lib_reject_firmware(struct rt2x00_dev *rt2x00dev)
{
struct device *device = wiphy_dev(rt2x00dev->hw->wiphy);
const struct firmware *fw;
char *fw_name;
int retval;
/*
* Read correct firmware from harddisk.
*/
fw_name = rt2x00dev->ops->lib->get_firmware_name(rt2x00dev);
if (!fw_name) {
rt2x00_err(rt2x00dev,
"Invalid firmware filename\n"
"Please file bug report to %s\n", DRV_PROJECT);
return -EINVAL;
}
rt2x00_info(rt2x00dev, "Loading firmware file '%s'\n", fw_name);
retval = reject_firmware(&fw, fw_name, device);
if (retval) {
rt2x00_err(rt2x00dev, "Failed to request Firmware\n");
return retval;
}
if (!fw || !fw->size || !fw->data) {
rt2x00_err(rt2x00dev, "Failed to read Firmware\n");
release_firmware(fw);
return -ENOENT;
}
rt2x00_info(rt2x00dev, "Firmware detected - version: %d.%d\n",
fw->data[fw->size - 4], fw->data[fw->size - 3]);
snprintf(rt2x00dev->hw->wiphy->fw_version,
sizeof(rt2x00dev->hw->wiphy->fw_version), "%d.%d",
fw->data[fw->size - 4], fw->data[fw->size - 3]);
retval = rt2x00dev->ops->lib->check_firmware(rt2x00dev, fw->data, fw->size);
switch (retval) {
case FW_OK:
break;
case FW_BAD_CRC:
rt2x00_err(rt2x00dev, "Firmware checksum error\n");
goto exit;
case FW_BAD_LENGTH:
rt2x00_err(rt2x00dev, "Invalid firmware file length (len=%zu)\n",
fw->size);
goto exit;
case FW_BAD_VERSION:
rt2x00_err(rt2x00dev, "Current firmware does not support detected chipset\n");
goto exit;
}
rt2x00dev->fw = fw;
return 0;
exit:
release_firmware(fw);
return -ENOENT;
}
