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; }