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path: root/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c
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Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/nvm.c')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/nvm.c208
1 files changed, 10 insertions, 198 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c b/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c
index 5bfe5306524c..cf48517944ec 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c
@@ -8,6 +8,7 @@
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
+ * Copyright(c) 2018 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@@ -35,6 +36,7 @@
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
+ * Copyright(c) 2018 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -76,9 +78,7 @@
#include "fw/acpi.h"
/* Default NVM size to read */
-#define IWL_NVM_DEFAULT_CHUNK_SIZE (2*1024)
-#define IWL_MAX_NVM_SECTION_SIZE 0x1b58
-#define IWL_MAX_EXT_NVM_SECTION_SIZE 0x1ffc
+#define IWL_NVM_DEFAULT_CHUNK_SIZE (2 * 1024)
#define NVM_WRITE_OPCODE 1
#define NVM_READ_OPCODE 0
@@ -229,19 +229,6 @@ 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
@@ -282,7 +269,7 @@ static int iwl_nvm_read_section(struct iwl_mvm *mvm, u16 section,
offset += ret;
}
- iwl_mvm_nvm_fixups(mvm, section, data, offset);
+ iwl_nvm_fixups(mvm->trans->hw_id, section, data, offset);
IWL_DEBUG_EEPROM(mvm->trans->dev,
"NVM section %d read completed\n", section);
@@ -355,184 +342,6 @@ iwl_parse_nvm_sections(struct iwl_mvm *mvm)
lar_enabled);
}
-#define MAX_NVM_FILE_LEN 16384
-
-/*
- * Reads external NVM from a file into mvm->nvm_sections
- *
- * HOW TO CREATE THE NVM FILE FORMAT:
- * ------------------------------
- * 1. create hex file, format:
- * 3800 -> header
- * 0000 -> header
- * 5a40 -> data
- *
- * rev - 6 bit (word1)
- * len - 10 bit (word1)
- * id - 4 bit (word2)
- * rsv - 12 bit (word2)
- *
- * 2. flip 8bits with 8 bits per line to get the right NVM file format
- *
- * 3. create binary file from the hex file
- *
- * 4. save as "iNVM_xxx.bin" under /lib/firmware
- */
-int iwl_mvm_read_external_nvm(struct iwl_mvm *mvm)
-{
- int ret, section_size;
- u16 section_id;
- const struct firmware *fw_entry;
- const struct {
- __le16 word1;
- __le16 word2;
- u8 data[];
- } *file_sec;
- const u8 *eof;
- u8 *temp;
- int max_section_size;
- const __le32 *dword_buff;
-
-#define NVM_WORD1_LEN(x) (8 * (x & 0x03FF))
-#define NVM_WORD2_ID(x) (x >> 12)
-#define EXT_NVM_WORD2_LEN(x) (2 * (((x) & 0xFF) << 8 | (x) >> 8))
-#define EXT_NVM_WORD1_ID(x) ((x) >> 4)
-#define NVM_HEADER_0 (0x2A504C54)
-#define NVM_HEADER_1 (0x4E564D2A)
-#define NVM_HEADER_SIZE (4 * sizeof(u32))
-
- IWL_DEBUG_EEPROM(mvm->trans->dev, "Read from external NVM\n");
-
- /* Maximal size depends on NVM version */
- if (mvm->trans->cfg->nvm_type != IWL_NVM_EXT)
- max_section_size = IWL_MAX_NVM_SECTION_SIZE;
- else
- max_section_size = IWL_MAX_EXT_NVM_SECTION_SIZE;
-
- /*
- * Obtain NVM image via request_firmware. Since we already used
- * request_firmware_nowait() for the firmware binary load and only
- * get here after that we assume the NVM request can be satisfied
- * synchronously.
- */
- ret = request_firmware(&fw_entry, mvm->nvm_file_name,
- mvm->trans->dev);
- if (ret) {
- IWL_ERR(mvm, "ERROR: %s isn't available %d\n",
- mvm->nvm_file_name, ret);
- return ret;
- }
-
- IWL_INFO(mvm, "Loaded NVM file %s (%zu bytes)\n",
- mvm->nvm_file_name, fw_entry->size);
-
- if (fw_entry->size > MAX_NVM_FILE_LEN) {
- IWL_ERR(mvm, "NVM file too large\n");
- ret = -EINVAL;
- goto out;
- }
-
- eof = fw_entry->data + fw_entry->size;
- dword_buff = (__le32 *)fw_entry->data;
-
- /* some NVM file will contain a header.
- * The header is identified by 2 dwords header as follow:
- * dword[0] = 0x2A504C54
- * dword[1] = 0x4E564D2A
- *
- * This header must be skipped when providing the NVM data to the FW.
- */
- if (fw_entry->size > NVM_HEADER_SIZE &&
- dword_buff[0] == cpu_to_le32(NVM_HEADER_0) &&
- dword_buff[1] == cpu_to_le32(NVM_HEADER_1)) {
- file_sec = (void *)(fw_entry->data + NVM_HEADER_SIZE);
- IWL_INFO(mvm, "NVM Version %08X\n", le32_to_cpu(dword_buff[2]));
- IWL_INFO(mvm, "NVM Manufacturing date %08X\n",
- le32_to_cpu(dword_buff[3]));
-
- /* nvm file validation, dword_buff[2] holds the file version */
- if (mvm->trans->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
- CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_C_STEP &&
- le32_to_cpu(dword_buff[2]) < 0xE4A) {
- ret = -EFAULT;
- goto out;
- }
- } else {
- file_sec = (void *)fw_entry->data;
- }
-
- while (true) {
- if (file_sec->data > eof) {
- IWL_ERR(mvm,
- "ERROR - NVM file too short for section header\n");
- ret = -EINVAL;
- break;
- }
-
- /* check for EOF marker */
- if (!file_sec->word1 && !file_sec->word2) {
- ret = 0;
- break;
- }
-
- if (mvm->trans->cfg->nvm_type != IWL_NVM_EXT) {
- section_size =
- 2 * NVM_WORD1_LEN(le16_to_cpu(file_sec->word1));
- section_id = NVM_WORD2_ID(le16_to_cpu(file_sec->word2));
- } else {
- section_size = 2 * EXT_NVM_WORD2_LEN(
- le16_to_cpu(file_sec->word2));
- section_id = EXT_NVM_WORD1_ID(
- le16_to_cpu(file_sec->word1));
- }
-
- if (section_size > max_section_size) {
- IWL_ERR(mvm, "ERROR - section too large (%d)\n",
- section_size);
- ret = -EINVAL;
- break;
- }
-
- if (!section_size) {
- IWL_ERR(mvm, "ERROR - section empty\n");
- ret = -EINVAL;
- break;
- }
-
- if (file_sec->data + section_size > eof) {
- IWL_ERR(mvm,
- "ERROR - NVM file too short for section (%d bytes)\n",
- section_size);
- ret = -EINVAL;
- break;
- }
-
- if (WARN(section_id >= NVM_MAX_NUM_SECTIONS,
- "Invalid NVM section ID %d\n", section_id)) {
- ret = -EINVAL;
- break;
- }
-
- temp = kmemdup(file_sec->data, section_size, GFP_KERNEL);
- if (!temp) {
- 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;
-
- /* advance to the next section */
- file_sec = (void *)(file_sec->data + section_size);
- }
-out:
- release_firmware(fw_entry);
- return ret;
-}
-
/* Loads the NVM data stored in mvm->nvm_sections into the NIC */
int iwl_mvm_load_nvm_to_nic(struct iwl_mvm *mvm)
{
@@ -585,7 +394,7 @@ int iwl_nvm_init(struct iwl_mvm *mvm)
break;
}
- iwl_mvm_nvm_fixups(mvm, section, temp, ret);
+ iwl_nvm_fixups(mvm->trans->hw_id, section, temp, ret);
mvm->nvm_sections[section].data = temp;
mvm->nvm_sections[section].length = ret;
@@ -624,14 +433,17 @@ int iwl_nvm_init(struct iwl_mvm *mvm)
/* Only if PNVM selected in the mod param - load external NVM */
if (mvm->nvm_file_name) {
/* read External NVM file from the mod param */
- ret = iwl_mvm_read_external_nvm(mvm);
+ ret = iwl_read_external_nvm(mvm->trans, mvm->nvm_file_name,
+ mvm->nvm_sections);
if (ret) {
mvm->nvm_file_name = nvm_file_C;
if ((ret == -EFAULT || ret == -ENOENT) &&
mvm->nvm_file_name) {
/* in case nvm file was failed try again */
- ret = iwl_mvm_read_external_nvm(mvm);
+ ret = iwl_read_external_nvm(mvm->trans,
+ mvm->nvm_file_name,
+ mvm->nvm_sections);
if (ret)
return ret;
} else {
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