diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/nvm.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/nvm.c | 53 |
1 files changed, 48 insertions, 5 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c b/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c index 2ee0f6fe56a1..a9fcb15e9d1a 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c @@ -104,13 +104,35 @@ static int iwl_nvm_write_chunk(struct iwl_mvm *mvm, u16 section, struct iwl_host_cmd cmd = { .id = NVM_ACCESS_CMD, .len = { sizeof(struct iwl_nvm_access_cmd), length }, - .flags = CMD_SEND_IN_RFKILL, + .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, .data = { &nvm_access_cmd, data }, /* data may come from vmalloc, so use _DUP */ .dataflags = { 0, IWL_HCMD_DFL_DUP }, }; + struct iwl_rx_packet *pkt; + struct iwl_nvm_access_resp *nvm_resp; + int ret; + + ret = iwl_mvm_send_cmd(mvm, &cmd); + if (ret) + return ret; + + pkt = cmd.resp_pkt; + if (!pkt) { + IWL_ERR(mvm, "Error in NVM_ACCESS response\n"); + return -EINVAL; + } + /* Extract & check NVM write response */ + nvm_resp = (void *)pkt->data; + if (le16_to_cpu(nvm_resp->status) != READ_NVM_CHUNK_SUCCEED) { + IWL_ERR(mvm, + "NVM access write command failed for section %u (status = 0x%x)\n", + section, le16_to_cpu(nvm_resp->status)); + ret = -EIO; + } - return iwl_mvm_send_cmd(mvm, &cmd); + iwl_free_resp(&cmd); + return ret; } static int iwl_nvm_read_chunk(struct iwl_mvm *mvm, u16 section, @@ -210,6 +232,19 @@ static int iwl_nvm_write_section(struct iwl_mvm *mvm, u16 section, return 0; } +static void iwl_mvm_nvm_fixups(struct iwl_mvm *mvm, unsigned int section, + u8 *data, unsigned int len) +{ +#define IWL_4165_DEVICE_ID 0x5501 +#define NVM_SKU_CAP_MIMO_DISABLE BIT(5) + + if (section == NVM_SECTION_TYPE_PHY_SKU && + mvm->trans->hw_id == IWL_4165_DEVICE_ID && data && len >= 5 && + (data[4] & NVM_SKU_CAP_MIMO_DISABLE)) + /* OTP 0x52 bug work around: it's a 1x1 device */ + data[3] = ANT_B | (ANT_B << 4); +} + /* * Reads an NVM section completely. * NICs prior to 7000 family doesn't have a real NVM, but just read @@ -250,6 +285,8 @@ static int iwl_nvm_read_section(struct iwl_mvm *mvm, u16 section, offset += ret; } + iwl_mvm_nvm_fixups(mvm, section, data, offset); + IWL_DEBUG_EEPROM(mvm->trans->dev, "NVM section %d read completed\n", section); return offset; @@ -316,8 +353,7 @@ iwl_parse_nvm_sections(struct iwl_mvm *mvm) return iwl_parse_nvm_data(mvm->trans->dev, mvm->cfg, hw, sw, calib, regulatory, mac_override, phy_sku, mvm->fw->valid_tx_ant, mvm->fw->valid_rx_ant, - lar_enabled, mac_addr0, mac_addr1, - mvm->trans->hw_id); + lar_enabled, mac_addr0, mac_addr1); } #define MAX_NVM_FILE_LEN 16384 @@ -353,7 +389,8 @@ static int iwl_mvm_read_external_nvm(struct iwl_mvm *mvm) __le16 word2; u8 data[]; } *file_sec; - const u8 *eof, *temp; + const u8 *eof; + u8 *temp; int max_section_size; const __le32 *dword_buff; @@ -483,6 +520,9 @@ static int iwl_mvm_read_external_nvm(struct iwl_mvm *mvm) ret = -ENOMEM; break; } + + iwl_mvm_nvm_fixups(mvm, section_id, temp, section_size); + kfree(mvm->nvm_sections[section_id].data); mvm->nvm_sections[section_id].data = temp; mvm->nvm_sections[section_id].length = section_size; @@ -548,6 +588,9 @@ int iwl_nvm_init(struct iwl_mvm *mvm, bool read_nvm_from_nic) ret = -ENOMEM; break; } + + iwl_mvm_nvm_fixups(mvm, section, temp, ret); + mvm->nvm_sections[section].data = temp; mvm->nvm_sections[section].length = ret; |