/* * Intel Wireless Multicomm 3200 WiFi driver * * Copyright (C) 2009 Intel Corporation. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * Neither the name of Intel Corporation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * * Intel Corporation * Samuel Ortiz * Zhu Yi * */ #include #include #include "iwm.h" #include "umac.h" #include "commands.h" #include "eeprom.h" static struct iwm_eeprom_entry eeprom_map[] = { [IWM_EEPROM_SIG] = {"Signature", IWM_EEPROM_SIG_OFF, IWM_EEPROM_SIG_LEN}, [IWM_EEPROM_VERSION] = {"Version", IWM_EEPROM_VERSION_OFF, IWM_EEPROM_VERSION_LEN}, [IWM_EEPROM_OEM_HW_VERSION] = {"OEM HW version", IWM_EEPROM_OEM_HW_VERSION_OFF, IWM_EEPROM_OEM_HW_VERSION_LEN}, [IWM_EEPROM_MAC_VERSION] = {"MAC version", IWM_EEPROM_MAC_VERSION_OFF, IWM_EEPROM_MAC_VERSION_LEN}, [IWM_EEPROM_CARD_ID] = {"Card ID", IWM_EEPROM_CARD_ID_OFF, IWM_EEPROM_CARD_ID_LEN}, [IWM_EEPROM_RADIO_CONF] = {"Radio config", IWM_EEPROM_RADIO_CONF_OFF, IWM_EEPROM_RADIO_CONF_LEN}, [IWM_EEPROM_SKU_CAP] = {"SKU capabilities", IWM_EEPROM_SKU_CAP_OFF, IWM_EEPROM_SKU_CAP_LEN}, [IWM_EEPROM_FAT_CHANNELS_CAP] = {"HT channels capabilities", IWM_EEPROM_FAT_CHANNELS_CAP_OFF, IWM_EEPROM_FAT_CHANNELS_CAP_LEN}, [IWM_EEPROM_CALIB_RXIQ_OFFSET] = {"RX IQ offset", IWM_EEPROM_CALIB_RXIQ_OFF, IWM_EEPROM_INDIRECT_LEN}, [IWM_EEPROM_CALIB_RXIQ] = {"Calib RX IQ", 0, IWM_EEPROM_CALIB_RXIQ_LEN}, }; static int iwm_eeprom_read(struct iwm_priv *iwm, u8 eeprom_id) { int ret; u32 entry_size, chunk_size, data_offset = 0, addr_offset = 0; u32 addr; struct iwm_udma_wifi_cmd udma_cmd; struct iwm_umac_cmd umac_cmd; struct iwm_umac_cmd_eeprom_proxy eeprom_cmd; if (eeprom_id > (IWM_EEPROM_LAST - 1)) return -EINVAL; entry_size = eeprom_map[eeprom_id].length; if (eeprom_id >= IWM_EEPROM_INDIRECT_DATA) { /* indirect data */ u32 off_id = eeprom_id - IWM_EEPROM_INDIRECT_DATA + IWM_EEPROM_INDIRECT_OFFSET; eeprom_map[eeprom_id].offset = *(u16 *)(iwm->eeprom + eeprom_map[off_id].offset) << 1; } addr = eeprom_map[eeprom_id].offset; udma_cmd.eop = 1; udma_cmd.credit_group = 0x4; udma_cmd.ra_tid = UMAC_HDI_ACT_TBL_IDX_HOST_CMD; udma_cmd.lmac_offset = 0; umac_cmd.id = UMAC_CMD_OPCODE_EEPROM_PROXY; umac_cmd.resp = 1; while (entry_size > 0) { chunk_size = min_t(u32, entry_size, IWM_MAX_EEPROM_DATA_LEN); eeprom_cmd.hdr.type = cpu_to_le32(IWM_UMAC_CMD_EEPROM_TYPE_READ); eeprom_cmd.hdr.offset = cpu_to_le32(addr + addr_offset); eeprom_cmd.hdr.len = cpu_to_le32(chunk_size); ret = iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, &eeprom_cmd, sizeof(struct iwm_umac_cmd_eeprom_proxy)); if (ret < 0) { IWM_ERR(iwm, "Couldn't read eeprom\n"); return ret; } ret = iwm_notif_handle(iwm, UMAC_CMD_OPCODE_EEPROM_PROXY, IWM_SRC_UMAC, 2*HZ); if (ret < 0) { IWM_ERR(iwm, "Did not get any eeprom answer\n"); return ret; } data_offset += chunk_size; addr_offset += chunk_size; entry_size -= chunk_size; } return 0; } u8 *iwm_eeprom_access(struct iwm_priv *iwm, u8 eeprom_id) { if (!iwm->eeprom) return ERR_PTR(-ENODEV); return iwm->eeprom + eeprom_map[eeprom_id].offset; } int iwm_eeprom_fat_channels(struct iwm_priv *iwm) { struct wiphy *wiphy = iwm_to_wiphy(iwm); struct ieee80211_supported_band *band; u16 *channels, i; channels = (u16 *)iwm_eeprom_access(iwm, IWM_EEPROM_FAT_CHANNELS_CAP); if (IS_ERR(channels)) return PTR_ERR(channels); band = wiphy->bands[IEEE80211_BAND_2GHZ]; band->ht_cap.ht_supported = true; for (i = 0; i < IWM_EEPROM_FAT_CHANNELS_24; i++) if (!(channels[i] & IWM_EEPROM_FAT_CHANNEL_ENABLED)) band->ht_cap.ht_supported = false; band = wiphy->bands[IEEE80211_BAND_5GHZ]; band->ht_cap.ht_supported = true; for (i = IWM_EEPROM_FAT_CHANNELS_24; i < IWM_EEPROM_FAT_CHANNELS; i++) if (!(channels[i] & IWM_EEPROM_FAT_CHANNEL_ENABLED)) band->ht_cap.ht_supported = false; return 0; } u32 iwm_eeprom_wireless_mode(struct iwm_priv *iwm) { u16 sku_cap; u32 wireless_mode = 0; sku_cap = *((u16 *)iwm_eeprom_access(iwm, IWM_EEPROM_SKU_CAP)); if (sku_cap & IWM_EEPROM_SKU_CAP_BAND_24GHZ) wireless_mode |= WIRELESS_MODE_11G; if (sku_cap & IWM_EEPROM_SKU_CAP_BAND_52GHZ) wireless_mode |= WIRELESS_MODE_11A; if (sku_cap & IWM_EEPROM_SKU_CAP_11N_ENABLE) wireless_mode |= WIRELESS_MODE_11N; return wireless_mode; } int iwm_eeprom_init(struct iwm_priv *iwm) { int i, ret = 0; char name[32]; iwm->eeprom = kzalloc(IWM_EEPROM_LEN, GFP_KERNEL); if (!iwm->eeprom) return -ENOMEM; for (i = IWM_EEPROM_FIRST; i < IWM_EEPROM_LAST; i++) { ret = iwm_eeprom_read(iwm, i); if (ret < 0) { IWM_ERR(iwm, "Couldn't read eeprom entry #%d: %s\n", i, eeprom_map[i].name); break; } } IWM_DBG_BOOT(iwm, DBG, "EEPROM dump:\n"); for (i = IWM_EEPROM_FIRST; i < IWM_EEPROM_LAST; i++) { memset(name, 0, 32); sprintf(name, "%s: ", eeprom_map[i].name); IWM_HEXDUMP(iwm, DBG, BOOT, name, iwm->eeprom + eeprom_map[i].offset, eeprom_map[i].length); } return ret; } void iwm_eeprom_exit(struct iwm_priv *iwm) { kfree(iwm->eeprom); }