100c4da27SChristian Lamparter /* 200c4da27SChristian Lamparter * Atheros CARL9170 driver 300c4da27SChristian Lamparter * 400c4da27SChristian Lamparter * firmware parser 500c4da27SChristian Lamparter * 600c4da27SChristian Lamparter * Copyright 2009, 2010, Christian Lamparter <chunkeey@googlemail.com> 700c4da27SChristian Lamparter * 800c4da27SChristian Lamparter * This program is free software; you can redistribute it and/or modify 900c4da27SChristian Lamparter * it under the terms of the GNU General Public License as published by 1000c4da27SChristian Lamparter * the Free Software Foundation; either version 2 of the License, or 1100c4da27SChristian Lamparter * (at your option) any later version. 1200c4da27SChristian Lamparter * 1300c4da27SChristian Lamparter * This program is distributed in the hope that it will be useful, 1400c4da27SChristian Lamparter * but WITHOUT ANY WARRANTY; without even the implied warranty of 1500c4da27SChristian Lamparter * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1600c4da27SChristian Lamparter * GNU General Public License for more details. 1700c4da27SChristian Lamparter * 1800c4da27SChristian Lamparter * You should have received a copy of the GNU General Public License 1900c4da27SChristian Lamparter * along with this program; see the file COPYING. If not, see 2000c4da27SChristian Lamparter * http://www.gnu.org/licenses/. 2100c4da27SChristian Lamparter */ 2200c4da27SChristian Lamparter 2300c4da27SChristian Lamparter #include <linux/kernel.h> 2400c4da27SChristian Lamparter #include <linux/firmware.h> 2500c4da27SChristian Lamparter #include <linux/crc32.h> 269d9779e7SPaul Gortmaker #include <linux/module.h> 2700c4da27SChristian Lamparter #include "carl9170.h" 2800c4da27SChristian Lamparter #include "fwcmd.h" 2900c4da27SChristian Lamparter #include "version.h" 3000c4da27SChristian Lamparter 3100c4da27SChristian Lamparter static const u8 otus_magic[4] = { OTUS_MAGIC }; 3200c4da27SChristian Lamparter 3300c4da27SChristian Lamparter static const void *carl9170_fw_find_desc(struct ar9170 *ar, const u8 descid[4], 3400c4da27SChristian Lamparter const unsigned int len, const u8 compatible_revision) 3500c4da27SChristian Lamparter { 3600c4da27SChristian Lamparter const struct carl9170fw_desc_head *iter; 3700c4da27SChristian Lamparter 3800c4da27SChristian Lamparter carl9170fw_for_each_hdr(iter, ar->fw.desc) { 3900c4da27SChristian Lamparter if (carl9170fw_desc_cmp(iter, descid, len, 4000c4da27SChristian Lamparter compatible_revision)) 4100c4da27SChristian Lamparter return (void *)iter; 4200c4da27SChristian Lamparter } 4300c4da27SChristian Lamparter 4400c4da27SChristian Lamparter /* needed to find the LAST desc */ 4500c4da27SChristian Lamparter if (carl9170fw_desc_cmp(iter, descid, len, 4600c4da27SChristian Lamparter compatible_revision)) 4700c4da27SChristian Lamparter return (void *)iter; 4800c4da27SChristian Lamparter 4900c4da27SChristian Lamparter return NULL; 5000c4da27SChristian Lamparter } 5100c4da27SChristian Lamparter 5200c4da27SChristian Lamparter static int carl9170_fw_verify_descs(struct ar9170 *ar, 5300c4da27SChristian Lamparter const struct carl9170fw_desc_head *head, unsigned int max_len) 5400c4da27SChristian Lamparter { 5500c4da27SChristian Lamparter const struct carl9170fw_desc_head *pos; 5600c4da27SChristian Lamparter unsigned long pos_addr, end_addr; 5700c4da27SChristian Lamparter unsigned int pos_length; 5800c4da27SChristian Lamparter 5900c4da27SChristian Lamparter if (max_len < sizeof(*pos)) 6000c4da27SChristian Lamparter return -ENODATA; 6100c4da27SChristian Lamparter 6200c4da27SChristian Lamparter max_len = min_t(unsigned int, CARL9170FW_DESC_MAX_LENGTH, max_len); 6300c4da27SChristian Lamparter 6400c4da27SChristian Lamparter pos = head; 6500c4da27SChristian Lamparter pos_addr = (unsigned long) pos; 6600c4da27SChristian Lamparter end_addr = pos_addr + max_len; 6700c4da27SChristian Lamparter 6800c4da27SChristian Lamparter while (pos_addr < end_addr) { 6900c4da27SChristian Lamparter if (pos_addr + sizeof(*head) > end_addr) 7000c4da27SChristian Lamparter return -E2BIG; 7100c4da27SChristian Lamparter 7200c4da27SChristian Lamparter pos_length = le16_to_cpu(pos->length); 7300c4da27SChristian Lamparter 7400c4da27SChristian Lamparter if (pos_length < sizeof(*head)) 7500c4da27SChristian Lamparter return -EBADMSG; 7600c4da27SChristian Lamparter 7700c4da27SChristian Lamparter if (pos_length > max_len) 7800c4da27SChristian Lamparter return -EOVERFLOW; 7900c4da27SChristian Lamparter 8000c4da27SChristian Lamparter if (pos_addr + pos_length > end_addr) 8100c4da27SChristian Lamparter return -EMSGSIZE; 8200c4da27SChristian Lamparter 8300c4da27SChristian Lamparter if (carl9170fw_desc_cmp(pos, LAST_MAGIC, 8400c4da27SChristian Lamparter CARL9170FW_LAST_DESC_SIZE, 8500c4da27SChristian Lamparter CARL9170FW_LAST_DESC_CUR_VER)) 8600c4da27SChristian Lamparter return 0; 8700c4da27SChristian Lamparter 8800c4da27SChristian Lamparter pos_addr += pos_length; 8900c4da27SChristian Lamparter pos = (void *)pos_addr; 9000c4da27SChristian Lamparter max_len -= pos_length; 9100c4da27SChristian Lamparter } 9200c4da27SChristian Lamparter return -EINVAL; 9300c4da27SChristian Lamparter } 9400c4da27SChristian Lamparter 9500c4da27SChristian Lamparter static void carl9170_fw_info(struct ar9170 *ar) 9600c4da27SChristian Lamparter { 9700c4da27SChristian Lamparter const struct carl9170fw_motd_desc *motd_desc; 9800c4da27SChristian Lamparter unsigned int str_ver_len; 9900c4da27SChristian Lamparter u32 fw_date; 10000c4da27SChristian Lamparter 10100c4da27SChristian Lamparter dev_info(&ar->udev->dev, "driver API: %s 2%03d-%02d-%02d [%d-%d]\n", 10200c4da27SChristian Lamparter CARL9170FW_VERSION_GIT, CARL9170FW_VERSION_YEAR, 10300c4da27SChristian Lamparter CARL9170FW_VERSION_MONTH, CARL9170FW_VERSION_DAY, 10400c4da27SChristian Lamparter CARL9170FW_API_MIN_VER, CARL9170FW_API_MAX_VER); 10500c4da27SChristian Lamparter 10600c4da27SChristian Lamparter motd_desc = carl9170_fw_find_desc(ar, MOTD_MAGIC, 10700c4da27SChristian Lamparter sizeof(*motd_desc), CARL9170FW_MOTD_DESC_CUR_VER); 10800c4da27SChristian Lamparter 10900c4da27SChristian Lamparter if (motd_desc) { 11000c4da27SChristian Lamparter str_ver_len = strnlen(motd_desc->release, 11100c4da27SChristian Lamparter CARL9170FW_MOTD_RELEASE_LEN); 11200c4da27SChristian Lamparter 11300c4da27SChristian Lamparter fw_date = le32_to_cpu(motd_desc->fw_year_month_day); 11400c4da27SChristian Lamparter 11500c4da27SChristian Lamparter dev_info(&ar->udev->dev, "firmware API: %.*s 2%03d-%02d-%02d\n", 11600c4da27SChristian Lamparter str_ver_len, motd_desc->release, 11700c4da27SChristian Lamparter CARL9170FW_GET_YEAR(fw_date), 11800c4da27SChristian Lamparter CARL9170FW_GET_MONTH(fw_date), 11900c4da27SChristian Lamparter CARL9170FW_GET_DAY(fw_date)); 12000c4da27SChristian Lamparter 12100c4da27SChristian Lamparter strlcpy(ar->hw->wiphy->fw_version, motd_desc->release, 12200c4da27SChristian Lamparter sizeof(ar->hw->wiphy->fw_version)); 12300c4da27SChristian Lamparter } 12400c4da27SChristian Lamparter } 12500c4da27SChristian Lamparter 12600c4da27SChristian Lamparter static bool valid_dma_addr(const u32 address) 12700c4da27SChristian Lamparter { 12800c4da27SChristian Lamparter if (address >= AR9170_SRAM_OFFSET && 12900c4da27SChristian Lamparter address < (AR9170_SRAM_OFFSET + AR9170_SRAM_SIZE)) 13000c4da27SChristian Lamparter return true; 13100c4da27SChristian Lamparter 13200c4da27SChristian Lamparter return false; 13300c4da27SChristian Lamparter } 13400c4da27SChristian Lamparter 13500c4da27SChristian Lamparter static bool valid_cpu_addr(const u32 address) 13600c4da27SChristian Lamparter { 13700c4da27SChristian Lamparter if (valid_dma_addr(address) || (address >= AR9170_PRAM_OFFSET && 13800c4da27SChristian Lamparter address < (AR9170_PRAM_OFFSET + AR9170_PRAM_SIZE))) 13900c4da27SChristian Lamparter return true; 14000c4da27SChristian Lamparter 14100c4da27SChristian Lamparter return false; 14200c4da27SChristian Lamparter } 14300c4da27SChristian Lamparter 14465a69228SChristian Lamparter static int carl9170_fw_checksum(struct ar9170 *ar, const __u8 *data, 14565a69228SChristian Lamparter size_t len) 14600c4da27SChristian Lamparter { 14700c4da27SChristian Lamparter const struct carl9170fw_otus_desc *otus_desc; 14800c4da27SChristian Lamparter const struct carl9170fw_last_desc *last_desc; 14965a69228SChristian Lamparter const struct carl9170fw_chk_desc *chk_desc; 15065a69228SChristian Lamparter unsigned long fin, diff; 15165a69228SChristian Lamparter unsigned int dsc_len; 15265a69228SChristian Lamparter u32 crc32; 15300c4da27SChristian Lamparter 15400c4da27SChristian Lamparter last_desc = carl9170_fw_find_desc(ar, LAST_MAGIC, 15500c4da27SChristian Lamparter sizeof(*last_desc), CARL9170FW_LAST_DESC_CUR_VER); 15600c4da27SChristian Lamparter if (!last_desc) 15700c4da27SChristian Lamparter return -EINVAL; 15800c4da27SChristian Lamparter 15900c4da27SChristian Lamparter otus_desc = carl9170_fw_find_desc(ar, OTUS_MAGIC, 16000c4da27SChristian Lamparter sizeof(*otus_desc), CARL9170FW_OTUS_DESC_CUR_VER); 16100c4da27SChristian Lamparter if (!otus_desc) { 16200c4da27SChristian Lamparter dev_err(&ar->udev->dev, "failed to find compatible firmware " 16300c4da27SChristian Lamparter "descriptor.\n"); 16400c4da27SChristian Lamparter return -ENODATA; 16500c4da27SChristian Lamparter } 16600c4da27SChristian Lamparter 16700c4da27SChristian Lamparter chk_desc = carl9170_fw_find_desc(ar, CHK_MAGIC, 16800c4da27SChristian Lamparter sizeof(*chk_desc), CARL9170FW_CHK_DESC_CUR_VER); 16900c4da27SChristian Lamparter 17065a69228SChristian Lamparter if (!chk_desc) { 17165a69228SChristian Lamparter dev_warn(&ar->udev->dev, "Unprotected firmware image.\n"); 17265a69228SChristian Lamparter return 0; 17365a69228SChristian Lamparter } 17400c4da27SChristian Lamparter 17500c4da27SChristian Lamparter dsc_len = min_t(unsigned int, len, 17600c4da27SChristian Lamparter (unsigned long)chk_desc - (unsigned long)otus_desc); 17700c4da27SChristian Lamparter 17800c4da27SChristian Lamparter fin = (unsigned long) last_desc + sizeof(*last_desc); 17900c4da27SChristian Lamparter diff = fin - (unsigned long) otus_desc; 18000c4da27SChristian Lamparter 18100c4da27SChristian Lamparter if (diff < len) 18200c4da27SChristian Lamparter len -= diff; 18300c4da27SChristian Lamparter 18400c4da27SChristian Lamparter if (len < 256) 18500c4da27SChristian Lamparter return -EIO; 18600c4da27SChristian Lamparter 18700c4da27SChristian Lamparter crc32 = crc32_le(~0, data, len); 18800c4da27SChristian Lamparter if (cpu_to_le32(crc32) != chk_desc->fw_crc32) { 18900c4da27SChristian Lamparter dev_err(&ar->udev->dev, "fw checksum test failed.\n"); 19000c4da27SChristian Lamparter return -ENOEXEC; 19100c4da27SChristian Lamparter } 19200c4da27SChristian Lamparter 19300c4da27SChristian Lamparter crc32 = crc32_le(crc32, (void *)otus_desc, dsc_len); 19400c4da27SChristian Lamparter if (cpu_to_le32(crc32) != chk_desc->hdr_crc32) { 19500c4da27SChristian Lamparter dev_err(&ar->udev->dev, "descriptor check failed.\n"); 19600c4da27SChristian Lamparter return -EINVAL; 19700c4da27SChristian Lamparter } 19865a69228SChristian Lamparter return 0; 19965a69228SChristian Lamparter } 20065a69228SChristian Lamparter 20165a69228SChristian Lamparter static int carl9170_fw_tx_sequence(struct ar9170 *ar) 20265a69228SChristian Lamparter { 20365a69228SChristian Lamparter const struct carl9170fw_txsq_desc *txsq_desc; 20465a69228SChristian Lamparter 20565a69228SChristian Lamparter txsq_desc = carl9170_fw_find_desc(ar, TXSQ_MAGIC, sizeof(*txsq_desc), 20665a69228SChristian Lamparter CARL9170FW_TXSQ_DESC_CUR_VER); 20765a69228SChristian Lamparter if (txsq_desc) { 20865a69228SChristian Lamparter ar->fw.tx_seq_table = le32_to_cpu(txsq_desc->seq_table_addr); 20965a69228SChristian Lamparter if (!valid_cpu_addr(ar->fw.tx_seq_table)) 21065a69228SChristian Lamparter return -EINVAL; 21100c4da27SChristian Lamparter } else { 21265a69228SChristian Lamparter ar->fw.tx_seq_table = 0; 21365a69228SChristian Lamparter } 21465a69228SChristian Lamparter 21565a69228SChristian Lamparter return 0; 21665a69228SChristian Lamparter } 21765a69228SChristian Lamparter 21865a69228SChristian Lamparter static int carl9170_fw(struct ar9170 *ar, const __u8 *data, size_t len) 21965a69228SChristian Lamparter { 22065a69228SChristian Lamparter const struct carl9170fw_otus_desc *otus_desc; 22165a69228SChristian Lamparter int err; 22265a69228SChristian Lamparter u16 if_comb_types; 22365a69228SChristian Lamparter 22465a69228SChristian Lamparter err = carl9170_fw_checksum(ar, data, len); 22565a69228SChristian Lamparter if (err) 22665a69228SChristian Lamparter return err; 22765a69228SChristian Lamparter 22865a69228SChristian Lamparter otus_desc = carl9170_fw_find_desc(ar, OTUS_MAGIC, 22965a69228SChristian Lamparter sizeof(*otus_desc), CARL9170FW_OTUS_DESC_CUR_VER); 23065a69228SChristian Lamparter if (!otus_desc) { 23165a69228SChristian Lamparter return -ENODATA; 23200c4da27SChristian Lamparter } 23300c4da27SChristian Lamparter 23400c4da27SChristian Lamparter #define SUPP(feat) \ 23500c4da27SChristian Lamparter (carl9170fw_supports(otus_desc->feature_set, feat)) 23600c4da27SChristian Lamparter 23700c4da27SChristian Lamparter if (!SUPP(CARL9170FW_DUMMY_FEATURE)) { 23800c4da27SChristian Lamparter dev_err(&ar->udev->dev, "invalid firmware descriptor " 23900c4da27SChristian Lamparter "format detected.\n"); 24000c4da27SChristian Lamparter return -EINVAL; 24100c4da27SChristian Lamparter } 24200c4da27SChristian Lamparter 24300c4da27SChristian Lamparter ar->fw.api_version = otus_desc->api_ver; 24400c4da27SChristian Lamparter 24500c4da27SChristian Lamparter if (ar->fw.api_version < CARL9170FW_API_MIN_VER || 24600c4da27SChristian Lamparter ar->fw.api_version > CARL9170FW_API_MAX_VER) { 24700c4da27SChristian Lamparter dev_err(&ar->udev->dev, "unsupported firmware api version.\n"); 24800c4da27SChristian Lamparter return -EINVAL; 24900c4da27SChristian Lamparter } 25000c4da27SChristian Lamparter 25100c4da27SChristian Lamparter if (!SUPP(CARL9170FW_COMMAND_PHY) || SUPP(CARL9170FW_UNUSABLE) || 25200c4da27SChristian Lamparter !SUPP(CARL9170FW_HANDLE_BACK_REQ)) { 25300c4da27SChristian Lamparter dev_err(&ar->udev->dev, "firmware does support " 25400c4da27SChristian Lamparter "mandatory features.\n"); 25500c4da27SChristian Lamparter return -ECANCELED; 25600c4da27SChristian Lamparter } 25700c4da27SChristian Lamparter 25800c4da27SChristian Lamparter if (ilog2(le32_to_cpu(otus_desc->feature_set)) >= 25900c4da27SChristian Lamparter __CARL9170FW_FEATURE_NUM) { 26000c4da27SChristian Lamparter dev_warn(&ar->udev->dev, "driver does not support all " 26100c4da27SChristian Lamparter "firmware features.\n"); 26200c4da27SChristian Lamparter } 26300c4da27SChristian Lamparter 26400c4da27SChristian Lamparter if (!SUPP(CARL9170FW_COMMAND_CAM)) { 26500c4da27SChristian Lamparter dev_info(&ar->udev->dev, "crypto offloading is disabled " 26600c4da27SChristian Lamparter "by firmware.\n"); 26700c4da27SChristian Lamparter ar->disable_offload = true; 26800c4da27SChristian Lamparter } 26900c4da27SChristian Lamparter 2701205f543SChristian Lamparter if (SUPP(CARL9170FW_PSM) && SUPP(CARL9170FW_FIXED_5GHZ_PSM)) 27100c4da27SChristian Lamparter ar->hw->flags |= IEEE80211_HW_SUPPORTS_PS; 27200c4da27SChristian Lamparter 27300c4da27SChristian Lamparter if (!SUPP(CARL9170FW_USB_INIT_FIRMWARE)) { 27400c4da27SChristian Lamparter dev_err(&ar->udev->dev, "firmware does not provide " 27500c4da27SChristian Lamparter "mandatory interfaces.\n"); 27600c4da27SChristian Lamparter return -EINVAL; 27700c4da27SChristian Lamparter } 27800c4da27SChristian Lamparter 27900c4da27SChristian Lamparter if (SUPP(CARL9170FW_MINIBOOT)) 28000c4da27SChristian Lamparter ar->fw.offset = le16_to_cpu(otus_desc->miniboot_size); 28100c4da27SChristian Lamparter else 28200c4da27SChristian Lamparter ar->fw.offset = 0; 28300c4da27SChristian Lamparter 28400c4da27SChristian Lamparter if (SUPP(CARL9170FW_USB_DOWN_STREAM)) { 28500c4da27SChristian Lamparter ar->hw->extra_tx_headroom += sizeof(struct ar9170_stream); 28600c4da27SChristian Lamparter ar->fw.tx_stream = true; 28700c4da27SChristian Lamparter } 28800c4da27SChristian Lamparter 28900c4da27SChristian Lamparter if (SUPP(CARL9170FW_USB_UP_STREAM)) 29000c4da27SChristian Lamparter ar->fw.rx_stream = true; 29100c4da27SChristian Lamparter 2925c895691SChristian Lamparter if (SUPP(CARL9170FW_RX_FILTER)) { 2935c895691SChristian Lamparter ar->fw.rx_filter = true; 2945c895691SChristian Lamparter ar->rx_filter_caps = FIF_FCSFAIL | FIF_PLCPFAIL | 2955c895691SChristian Lamparter FIF_CONTROL | FIF_PSPOLL | FIF_OTHER_BSS | 2965c895691SChristian Lamparter FIF_PROMISC_IN_BSS; 2975c895691SChristian Lamparter } 2985c895691SChristian Lamparter 2997ccc83b0SChristian Lamparter if (SUPP(CARL9170FW_HW_COUNTERS)) 3007ccc83b0SChristian Lamparter ar->fw.hw_counters = true; 3017ccc83b0SChristian Lamparter 302c42d6cf2SChristian Lamparter if (SUPP(CARL9170FW_WOL)) 303c42d6cf2SChristian Lamparter device_set_wakeup_enable(&ar->udev->dev, true); 304c42d6cf2SChristian Lamparter 305c9122c0dSChristian Lamparter if (SUPP(CARL9170FW_RX_BA_FILTER)) 306c9122c0dSChristian Lamparter ar->fw.ba_filter = true; 307c9122c0dSChristian Lamparter 308df64962fSChristian Lamparter if_comb_types = BIT(NL80211_IFTYPE_STATION) | 309df64962fSChristian Lamparter BIT(NL80211_IFTYPE_P2P_CLIENT); 310df64962fSChristian Lamparter 31100c4da27SChristian Lamparter ar->fw.vif_num = otus_desc->vif_num; 31200c4da27SChristian Lamparter ar->fw.cmd_bufs = otus_desc->cmd_bufs; 31300c4da27SChristian Lamparter ar->fw.address = le32_to_cpu(otus_desc->fw_address); 31400c4da27SChristian Lamparter ar->fw.rx_size = le16_to_cpu(otus_desc->rx_max_frame_len); 31500c4da27SChristian Lamparter ar->fw.mem_blocks = min_t(unsigned int, otus_desc->tx_descs, 0xfe); 31600c4da27SChristian Lamparter atomic_set(&ar->mem_free_blocks, ar->fw.mem_blocks); 31700c4da27SChristian Lamparter ar->fw.mem_block_size = le16_to_cpu(otus_desc->tx_frag_len); 31800c4da27SChristian Lamparter 31900c4da27SChristian Lamparter if (ar->fw.vif_num >= AR9170_MAX_VIRTUAL_MAC || !ar->fw.vif_num || 32000c4da27SChristian Lamparter ar->fw.mem_blocks < 16 || !ar->fw.cmd_bufs || 32100c4da27SChristian Lamparter ar->fw.mem_block_size < 64 || ar->fw.mem_block_size > 512 || 32200c4da27SChristian Lamparter ar->fw.rx_size > 32768 || ar->fw.rx_size < 4096 || 32300c4da27SChristian Lamparter !valid_cpu_addr(ar->fw.address)) { 32400c4da27SChristian Lamparter dev_err(&ar->udev->dev, "firmware shows obvious signs of " 32500c4da27SChristian Lamparter "malicious tampering.\n"); 32600c4da27SChristian Lamparter return -EINVAL; 32700c4da27SChristian Lamparter } 32800c4da27SChristian Lamparter 32900c4da27SChristian Lamparter ar->fw.beacon_addr = le32_to_cpu(otus_desc->bcn_addr); 33000c4da27SChristian Lamparter ar->fw.beacon_max_len = le16_to_cpu(otus_desc->bcn_len); 33100c4da27SChristian Lamparter 33200c4da27SChristian Lamparter if (valid_dma_addr(ar->fw.beacon_addr) && ar->fw.beacon_max_len >= 33300c4da27SChristian Lamparter AR9170_MAC_BCN_LENGTH_MAX) { 33400c4da27SChristian Lamparter ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC); 33500c4da27SChristian Lamparter 33600c4da27SChristian Lamparter if (SUPP(CARL9170FW_WLANTX_CAB)) { 337df64962fSChristian Lamparter if_comb_types |= 338c426ee24SJohannes Berg BIT(NL80211_IFTYPE_AP) | 339c426ee24SJohannes Berg BIT(NL80211_IFTYPE_P2P_GO); 3406c653f66SChristian Lamparter 3416c653f66SChristian Lamparter #ifdef CONFIG_MAC80211_MESH 3426c653f66SChristian Lamparter if_comb_types |= 3436c653f66SChristian Lamparter BIT(NL80211_IFTYPE_MESH_POINT); 3446c653f66SChristian Lamparter #endif /* CONFIG_MAC80211_MESH */ 34500c4da27SChristian Lamparter } 34600c4da27SChristian Lamparter } 34700c4da27SChristian Lamparter 348df64962fSChristian Lamparter ar->if_comb_limits[0].max = ar->fw.vif_num; 349df64962fSChristian Lamparter ar->if_comb_limits[0].types = if_comb_types; 350df64962fSChristian Lamparter 351df64962fSChristian Lamparter ar->if_combs[0].num_different_channels = 1; 352df64962fSChristian Lamparter ar->if_combs[0].max_interfaces = ar->fw.vif_num; 353df64962fSChristian Lamparter ar->if_combs[0].limits = ar->if_comb_limits; 354df64962fSChristian Lamparter ar->if_combs[0].n_limits = ARRAY_SIZE(ar->if_comb_limits); 355df64962fSChristian Lamparter 356df64962fSChristian Lamparter ar->hw->wiphy->iface_combinations = ar->if_combs; 357df64962fSChristian Lamparter ar->hw->wiphy->n_iface_combinations = ARRAY_SIZE(ar->if_combs); 358df64962fSChristian Lamparter 359df64962fSChristian Lamparter ar->hw->wiphy->interface_modes |= if_comb_types; 360df64962fSChristian Lamparter 36181ddbb5cSJohannes Berg ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; 36281ddbb5cSJohannes Berg 36300c4da27SChristian Lamparter #undef SUPPORTED 36465a69228SChristian Lamparter return carl9170_fw_tx_sequence(ar); 36500c4da27SChristian Lamparter } 36600c4da27SChristian Lamparter 36700c4da27SChristian Lamparter static struct carl9170fw_desc_head * 36800c4da27SChristian Lamparter carl9170_find_fw_desc(struct ar9170 *ar, const __u8 *fw_data, const size_t len) 36900c4da27SChristian Lamparter 37000c4da27SChristian Lamparter { 37100c4da27SChristian Lamparter int scan = 0, found = 0; 37200c4da27SChristian Lamparter 37300c4da27SChristian Lamparter if (!carl9170fw_size_check(len)) { 37400c4da27SChristian Lamparter dev_err(&ar->udev->dev, "firmware size is out of bound.\n"); 37500c4da27SChristian Lamparter return NULL; 37600c4da27SChristian Lamparter } 37700c4da27SChristian Lamparter 37800c4da27SChristian Lamparter while (scan < len - sizeof(struct carl9170fw_desc_head)) { 37900c4da27SChristian Lamparter if (fw_data[scan++] == otus_magic[found]) 38000c4da27SChristian Lamparter found++; 38100c4da27SChristian Lamparter else 38200c4da27SChristian Lamparter found = 0; 38300c4da27SChristian Lamparter 38400c4da27SChristian Lamparter if (scan >= len) 38500c4da27SChristian Lamparter break; 38600c4da27SChristian Lamparter 38700c4da27SChristian Lamparter if (found == sizeof(otus_magic)) 38800c4da27SChristian Lamparter break; 38900c4da27SChristian Lamparter } 39000c4da27SChristian Lamparter 39100c4da27SChristian Lamparter if (found != sizeof(otus_magic)) 39200c4da27SChristian Lamparter return NULL; 39300c4da27SChristian Lamparter 39400c4da27SChristian Lamparter return (void *)&fw_data[scan - found]; 39500c4da27SChristian Lamparter } 39600c4da27SChristian Lamparter 39700c4da27SChristian Lamparter int carl9170_parse_firmware(struct ar9170 *ar) 39800c4da27SChristian Lamparter { 39900c4da27SChristian Lamparter const struct carl9170fw_desc_head *fw_desc = NULL; 40000c4da27SChristian Lamparter const struct firmware *fw = ar->fw.fw; 40100c4da27SChristian Lamparter unsigned long header_offset = 0; 40200c4da27SChristian Lamparter int err; 40300c4da27SChristian Lamparter 40400c4da27SChristian Lamparter if (WARN_ON(!fw)) 40500c4da27SChristian Lamparter return -EINVAL; 40600c4da27SChristian Lamparter 40700c4da27SChristian Lamparter fw_desc = carl9170_find_fw_desc(ar, fw->data, fw->size); 40800c4da27SChristian Lamparter 40900c4da27SChristian Lamparter if (!fw_desc) { 41000c4da27SChristian Lamparter dev_err(&ar->udev->dev, "unsupported firmware.\n"); 41100c4da27SChristian Lamparter return -ENODATA; 41200c4da27SChristian Lamparter } 41300c4da27SChristian Lamparter 41400c4da27SChristian Lamparter header_offset = (unsigned long)fw_desc - (unsigned long)fw->data; 41500c4da27SChristian Lamparter 41600c4da27SChristian Lamparter err = carl9170_fw_verify_descs(ar, fw_desc, fw->size - header_offset); 41700c4da27SChristian Lamparter if (err) { 41800c4da27SChristian Lamparter dev_err(&ar->udev->dev, "damaged firmware (%d).\n", err); 41900c4da27SChristian Lamparter return err; 42000c4da27SChristian Lamparter } 42100c4da27SChristian Lamparter 42200c4da27SChristian Lamparter ar->fw.desc = fw_desc; 42300c4da27SChristian Lamparter 42400c4da27SChristian Lamparter carl9170_fw_info(ar); 42500c4da27SChristian Lamparter 42600c4da27SChristian Lamparter err = carl9170_fw(ar, fw->data, fw->size); 42700c4da27SChristian Lamparter if (err) { 42800c4da27SChristian Lamparter dev_err(&ar->udev->dev, "failed to parse firmware (%d).\n", 42900c4da27SChristian Lamparter err); 43000c4da27SChristian Lamparter return err; 43100c4da27SChristian Lamparter } 43200c4da27SChristian Lamparter 43300c4da27SChristian Lamparter return 0; 43400c4da27SChristian Lamparter } 435