+++ /dev/null
-/******************************************************************************
- *
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
- * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
- *
- * 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
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called COPYING.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- * BSD LICENSE
- *
- * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
- * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
- * 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 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.
- *
- *****************************************************************************/
-#include <linux/firmware.h>
-#include <linux/rtnetlink.h>
-#include <linux/pci.h>
-#include <linux/acpi.h>
-#include "iwl-trans.h"
-#include "iwl-csr.h"
-#include "mvm.h"
-#include "iwl-eeprom-parse.h"
-#include "iwl-eeprom-read.h"
-#include "iwl-nvm-parse.h"
-#include "iwl-prph.h"
-
-/* Default NVM size to read */
-#define IWL_NVM_DEFAULT_CHUNK_SIZE (2*1024)
-#define IWL_MAX_NVM_SECTION_SIZE 0x1b58
-#define IWL_MAX_NVM_8000_SECTION_SIZE 0x1ffc
-
-#define NVM_WRITE_OPCODE 1
-#define NVM_READ_OPCODE 0
-
-/* load nvm chunk response */
-enum {
- READ_NVM_CHUNK_SUCCEED = 0,
- READ_NVM_CHUNK_NOT_VALID_ADDRESS = 1
-};
-
-/*
- * prepare the NVM host command w/ the pointers to the nvm buffer
- * and send it to fw
- */
-static int iwl_nvm_write_chunk(struct iwl_mvm *mvm, u16 section,
- u16 offset, u16 length, const u8 *data)
-{
- struct iwl_nvm_access_cmd nvm_access_cmd = {
- .offset = cpu_to_le16(offset),
- .length = cpu_to_le16(length),
- .type = cpu_to_le16(section),
- .op_code = NVM_WRITE_OPCODE,
- };
- struct iwl_host_cmd cmd = {
- .id = NVM_ACCESS_CMD,
- .len = { sizeof(struct iwl_nvm_access_cmd), length },
- .flags = CMD_SEND_IN_RFKILL,
- .data = { &nvm_access_cmd, data },
- /* data may come from vmalloc, so use _DUP */
- .dataflags = { 0, IWL_HCMD_DFL_DUP },
- };
-
- return iwl_mvm_send_cmd(mvm, &cmd);
-}
-
-static int iwl_nvm_read_chunk(struct iwl_mvm *mvm, u16 section,
- u16 offset, u16 length, u8 *data)
-{
- struct iwl_nvm_access_cmd nvm_access_cmd = {
- .offset = cpu_to_le16(offset),
- .length = cpu_to_le16(length),
- .type = cpu_to_le16(section),
- .op_code = NVM_READ_OPCODE,
- };
- struct iwl_nvm_access_resp *nvm_resp;
- struct iwl_rx_packet *pkt;
- struct iwl_host_cmd cmd = {
- .id = NVM_ACCESS_CMD,
- .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
- .data = { &nvm_access_cmd, },
- };
- int ret, bytes_read, offset_read;
- u8 *resp_data;
-
- cmd.len[0] = sizeof(struct iwl_nvm_access_cmd);
-
- ret = iwl_mvm_send_cmd(mvm, &cmd);
- if (ret)
- return ret;
-
- pkt = cmd.resp_pkt;
-
- /* Extract NVM response */
- nvm_resp = (void *)pkt->data;
- ret = le16_to_cpu(nvm_resp->status);
- bytes_read = le16_to_cpu(nvm_resp->length);
- offset_read = le16_to_cpu(nvm_resp->offset);
- resp_data = nvm_resp->data;
- if (ret) {
- if ((offset != 0) &&
- (ret == READ_NVM_CHUNK_NOT_VALID_ADDRESS)) {
- /*
- * meaning of NOT_VALID_ADDRESS:
- * driver try to read chunk from address that is
- * multiple of 2K and got an error since addr is empty.
- * meaning of (offset != 0): driver already
- * read valid data from another chunk so this case
- * is not an error.
- */
- IWL_DEBUG_EEPROM(mvm->trans->dev,
- "NVM access command failed on offset 0x%x since that section size is multiple 2K\n",
- offset);
- ret = 0;
- } else {
- IWL_DEBUG_EEPROM(mvm->trans->dev,
- "NVM access command failed with status %d (device: %s)\n",
- ret, mvm->cfg->name);
- ret = -EIO;
- }
- goto exit;
- }
-
- if (offset_read != offset) {
- IWL_ERR(mvm, "NVM ACCESS response with invalid offset %d\n",
- offset_read);
- ret = -EINVAL;
- goto exit;
- }
-
- /* Write data to NVM */
- memcpy(data + offset, resp_data, bytes_read);
- ret = bytes_read;
-
-exit:
- iwl_free_resp(&cmd);
- return ret;
-}
-
-static int iwl_nvm_write_section(struct iwl_mvm *mvm, u16 section,
- const u8 *data, u16 length)
-{
- int offset = 0;
-
- /* copy data in chunks of 2k (and remainder if any) */
-
- while (offset < length) {
- int chunk_size, ret;
-
- chunk_size = min(IWL_NVM_DEFAULT_CHUNK_SIZE,
- length - offset);
-
- ret = iwl_nvm_write_chunk(mvm, section, offset,
- chunk_size, data + offset);
- if (ret < 0)
- return ret;
-
- offset += chunk_size;
- }
-
- return 0;
-}
-
-/*
- * Reads an NVM section completely.
- * NICs prior to 7000 family doesn't have a real NVM, but just read
- * section 0 which is the EEPROM. Because the EEPROM reading is unlimited
- * by uCode, we need to manually check in this case that we don't
- * overflow and try to read more than the EEPROM size.
- * For 7000 family NICs, we supply the maximal size we can read, and
- * the uCode fills the response with as much data as we can,
- * without overflowing, so no check is needed.
- */
-static int iwl_nvm_read_section(struct iwl_mvm *mvm, u16 section,
- u8 *data, u32 size_read)
-{
- u16 length, offset = 0;
- int ret;
-
- /* Set nvm section read length */
- length = IWL_NVM_DEFAULT_CHUNK_SIZE;
-
- ret = length;
-
- /* Read the NVM until exhausted (reading less than requested) */
- while (ret == length) {
- /* Check no memory assumptions fail and cause an overflow */
- if ((size_read + offset + length) >
- mvm->cfg->base_params->eeprom_size) {
- IWL_ERR(mvm, "EEPROM size is too small for NVM\n");
- return -ENOBUFS;
- }
-
- ret = iwl_nvm_read_chunk(mvm, section, offset, length, data);
- if (ret < 0) {
- IWL_DEBUG_EEPROM(mvm->trans->dev,
- "Cannot read NVM from section %d offset %d, length %d\n",
- section, offset, length);
- return ret;
- }
- offset += ret;
- }
-
- IWL_DEBUG_EEPROM(mvm->trans->dev,
- "NVM section %d read completed\n", section);
- return offset;
-}
-
-static struct iwl_nvm_data *
-iwl_parse_nvm_sections(struct iwl_mvm *mvm)
-{
- struct iwl_nvm_section *sections = mvm->nvm_sections;
- const __le16 *hw, *sw, *calib, *regulatory, *mac_override, *phy_sku;
- bool lar_enabled;
- u32 mac_addr0, mac_addr1;
-
- /* Checking for required sections */
- if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) {
- if (!mvm->nvm_sections[NVM_SECTION_TYPE_SW].data ||
- !mvm->nvm_sections[mvm->cfg->nvm_hw_section_num].data) {
- IWL_ERR(mvm, "Can't parse empty OTP/NVM sections\n");
- return NULL;
- }
- } else {
- /* SW and REGULATORY sections are mandatory */
- if (!mvm->nvm_sections[NVM_SECTION_TYPE_SW].data ||
- !mvm->nvm_sections[NVM_SECTION_TYPE_REGULATORY].data) {
- IWL_ERR(mvm,
- "Can't parse empty family 8000 OTP/NVM sections\n");
- return NULL;
- }
- /* MAC_OVERRIDE or at least HW section must exist */
- if (!mvm->nvm_sections[mvm->cfg->nvm_hw_section_num].data &&
- !mvm->nvm_sections[NVM_SECTION_TYPE_MAC_OVERRIDE].data) {
- IWL_ERR(mvm,
- "Can't parse mac_address, empty sections\n");
- return NULL;
- }
-
- /* PHY_SKU section is mandatory in B0 */
- if (!mvm->nvm_sections[NVM_SECTION_TYPE_PHY_SKU].data) {
- IWL_ERR(mvm,
- "Can't parse phy_sku in B0, empty sections\n");
- return NULL;
- }
- }
-
- if (WARN_ON(!mvm->cfg))
- return NULL;
-
- /* read the mac address from WFMP registers */
- mac_addr0 = iwl_trans_read_prph(mvm->trans, WFMP_MAC_ADDR_0);
- mac_addr1 = iwl_trans_read_prph(mvm->trans, WFMP_MAC_ADDR_1);
-
- hw = (const __le16 *)sections[mvm->cfg->nvm_hw_section_num].data;
- sw = (const __le16 *)sections[NVM_SECTION_TYPE_SW].data;
- calib = (const __le16 *)sections[NVM_SECTION_TYPE_CALIBRATION].data;
- regulatory = (const __le16 *)sections[NVM_SECTION_TYPE_REGULATORY].data;
- mac_override =
- (const __le16 *)sections[NVM_SECTION_TYPE_MAC_OVERRIDE].data;
- phy_sku = (const __le16 *)sections[NVM_SECTION_TYPE_PHY_SKU].data;
-
- lar_enabled = !iwlwifi_mod_params.lar_disable &&
- fw_has_capa(&mvm->fw->ucode_capa,
- IWL_UCODE_TLV_CAPA_LAR_SUPPORT);
-
- 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);
-}
-
-#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
- */
-static 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, *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 NVM_WORD2_LEN_FAMILY_8000(x) (2 * ((x & 0xFF) << 8 | x >> 8))
-#define NVM_WORD1_ID_FAMILY_8000(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 HW family and step */
- if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000)
- max_section_size = IWL_MAX_NVM_SECTION_SIZE;
- else
- max_section_size = IWL_MAX_NVM_8000_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 ((CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_C_STEP &&
- le32_to_cpu(dword_buff[2]) < 0xE4A) ||
- (CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_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->device_family != IWL_DEVICE_FAMILY_8000) {
- 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 * NVM_WORD2_LEN_FAMILY_8000(
- le16_to_cpu(file_sec->word2));
- section_id = NVM_WORD1_ID_FAMILY_8000(
- 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;
- }
- 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)
-{
- int i, ret = 0;
- struct iwl_nvm_section *sections = mvm->nvm_sections;
-
- IWL_DEBUG_EEPROM(mvm->trans->dev, "'Write to NVM\n");
-
- for (i = 0; i < ARRAY_SIZE(mvm->nvm_sections); i++) {
- if (!mvm->nvm_sections[i].data || !mvm->nvm_sections[i].length)
- continue;
- ret = iwl_nvm_write_section(mvm, i, sections[i].data,
- sections[i].length);
- if (ret < 0) {
- IWL_ERR(mvm, "iwl_mvm_send_cmd failed: %d\n", ret);
- break;
- }
- }
- return ret;
-}
-
-int iwl_nvm_init(struct iwl_mvm *mvm, bool read_nvm_from_nic)
-{
- int ret, section;
- u32 size_read = 0;
- u8 *nvm_buffer, *temp;
- const char *nvm_file_B = mvm->cfg->default_nvm_file_B_step;
- const char *nvm_file_C = mvm->cfg->default_nvm_file_C_step;
-
- if (WARN_ON_ONCE(mvm->cfg->nvm_hw_section_num >= NVM_MAX_NUM_SECTIONS))
- return -EINVAL;
-
- /* load NVM values from nic */
- if (read_nvm_from_nic) {
- /* Read From FW NVM */
- IWL_DEBUG_EEPROM(mvm->trans->dev, "Read from NVM\n");
-
- nvm_buffer = kmalloc(mvm->cfg->base_params->eeprom_size,
- GFP_KERNEL);
- if (!nvm_buffer)
- return -ENOMEM;
- for (section = 0; section < NVM_MAX_NUM_SECTIONS; section++) {
- /* we override the constness for initial read */
- ret = iwl_nvm_read_section(mvm, section, nvm_buffer,
- size_read);
- if (ret < 0)
- continue;
- size_read += ret;
- temp = kmemdup(nvm_buffer, ret, GFP_KERNEL);
- if (!temp) {
- ret = -ENOMEM;
- break;
- }
- mvm->nvm_sections[section].data = temp;
- mvm->nvm_sections[section].length = ret;
-
-#ifdef CONFIG_IWLWIFI_DEBUGFS
- switch (section) {
- case NVM_SECTION_TYPE_SW:
- mvm->nvm_sw_blob.data = temp;
- mvm->nvm_sw_blob.size = ret;
- break;
- case NVM_SECTION_TYPE_CALIBRATION:
- mvm->nvm_calib_blob.data = temp;
- mvm->nvm_calib_blob.size = ret;
- break;
- case NVM_SECTION_TYPE_PRODUCTION:
- mvm->nvm_prod_blob.data = temp;
- mvm->nvm_prod_blob.size = ret;
- break;
- case NVM_SECTION_TYPE_PHY_SKU:
- mvm->nvm_phy_sku_blob.data = temp;
- mvm->nvm_phy_sku_blob.size = ret;
- break;
- default:
- if (section == mvm->cfg->nvm_hw_section_num) {
- mvm->nvm_hw_blob.data = temp;
- mvm->nvm_hw_blob.size = ret;
- break;
- }
- }
-#endif
- }
- if (!size_read)
- IWL_ERR(mvm, "OTP is blank\n");
- kfree(nvm_buffer);
- }
-
- /* 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);
- if (ret) {
- /* choose the nvm_file name according to the
- * HW step
- */
- if (CSR_HW_REV_STEP(mvm->trans->hw_rev) ==
- SILICON_B_STEP)
- mvm->nvm_file_name = nvm_file_B;
- else
- mvm->nvm_file_name = nvm_file_C;
-
- if (ret == -EFAULT && mvm->nvm_file_name) {
- /* in case nvm file was failed try again */
- ret = iwl_mvm_read_external_nvm(mvm);
- if (ret)
- return ret;
- } else {
- return ret;
- }
- }
- }
-
- /* parse the relevant nvm sections */
- mvm->nvm_data = iwl_parse_nvm_sections(mvm);
- if (!mvm->nvm_data)
- return -ENODATA;
- IWL_DEBUG_EEPROM(mvm->trans->dev, "nvm version = %x\n",
- mvm->nvm_data->nvm_version);
-
- return 0;
-}
-
-struct iwl_mcc_update_resp *
-iwl_mvm_update_mcc(struct iwl_mvm *mvm, const char *alpha2,
- enum iwl_mcc_source src_id)
-{
- struct iwl_mcc_update_cmd mcc_update_cmd = {
- .mcc = cpu_to_le16(alpha2[0] << 8 | alpha2[1]),
- .source_id = (u8)src_id,
- };
- struct iwl_mcc_update_resp *mcc_resp, *resp_cp = NULL;
- struct iwl_rx_packet *pkt;
- struct iwl_host_cmd cmd = {
- .id = MCC_UPDATE_CMD,
- .flags = CMD_WANT_SKB,
- .data = { &mcc_update_cmd },
- };
-
- int ret;
- u32 status;
- int resp_len, n_channels;
- u16 mcc;
-
- if (WARN_ON_ONCE(!iwl_mvm_is_lar_supported(mvm)))
- return ERR_PTR(-EOPNOTSUPP);
-
- cmd.len[0] = sizeof(struct iwl_mcc_update_cmd);
-
- IWL_DEBUG_LAR(mvm, "send MCC update to FW with '%c%c' src = %d\n",
- alpha2[0], alpha2[1], src_id);
-
- ret = iwl_mvm_send_cmd(mvm, &cmd);
- if (ret)
- return ERR_PTR(ret);
-
- pkt = cmd.resp_pkt;
-
- /* Extract MCC response */
- mcc_resp = (void *)pkt->data;
- status = le32_to_cpu(mcc_resp->status);
-
- mcc = le16_to_cpu(mcc_resp->mcc);
-
- /* W/A for a FW/NVM issue - returns 0x00 for the world domain */
- if (mcc == 0) {
- mcc = 0x3030; /* "00" - world */
- mcc_resp->mcc = cpu_to_le16(mcc);
- }
-
- n_channels = __le32_to_cpu(mcc_resp->n_channels);
- IWL_DEBUG_LAR(mvm,
- "MCC response status: 0x%x. new MCC: 0x%x ('%c%c') change: %d n_chans: %d\n",
- status, mcc, mcc >> 8, mcc & 0xff,
- !!(status == MCC_RESP_NEW_CHAN_PROFILE), n_channels);
-
- resp_len = sizeof(*mcc_resp) + n_channels * sizeof(__le32);
- resp_cp = kmemdup(mcc_resp, resp_len, GFP_KERNEL);
- if (!resp_cp) {
- ret = -ENOMEM;
- goto exit;
- }
-
- ret = 0;
-exit:
- iwl_free_resp(&cmd);
- if (ret)
- return ERR_PTR(ret);
- return resp_cp;
-}
-
-#ifdef CONFIG_ACPI
-#define WRD_METHOD "WRDD"
-#define WRDD_WIFI (0x07)
-#define WRDD_WIGIG (0x10)
-
-static u32 iwl_mvm_wrdd_get_mcc(struct iwl_mvm *mvm, union acpi_object *wrdd)
-{
- union acpi_object *mcc_pkg, *domain_type, *mcc_value;
- u32 i;
-
- if (wrdd->type != ACPI_TYPE_PACKAGE ||
- wrdd->package.count < 2 ||
- wrdd->package.elements[0].type != ACPI_TYPE_INTEGER ||
- wrdd->package.elements[0].integer.value != 0) {
- IWL_DEBUG_LAR(mvm, "Unsupported wrdd structure\n");
- return 0;
- }
-
- for (i = 1 ; i < wrdd->package.count ; ++i) {
- mcc_pkg = &wrdd->package.elements[i];
-
- if (mcc_pkg->type != ACPI_TYPE_PACKAGE ||
- mcc_pkg->package.count < 2 ||
- mcc_pkg->package.elements[0].type != ACPI_TYPE_INTEGER ||
- mcc_pkg->package.elements[1].type != ACPI_TYPE_INTEGER) {
- mcc_pkg = NULL;
- continue;
- }
-
- domain_type = &mcc_pkg->package.elements[0];
- if (domain_type->integer.value == WRDD_WIFI)
- break;
-
- mcc_pkg = NULL;
- }
-
- if (mcc_pkg) {
- mcc_value = &mcc_pkg->package.elements[1];
- return mcc_value->integer.value;
- }
-
- return 0;
-}
-
-static int iwl_mvm_get_bios_mcc(struct iwl_mvm *mvm, char *mcc)
-{
- acpi_handle root_handle;
- acpi_handle handle;
- struct acpi_buffer wrdd = {ACPI_ALLOCATE_BUFFER, NULL};
- acpi_status status;
- u32 mcc_val;
- struct pci_dev *pdev = to_pci_dev(mvm->dev);
-
- root_handle = ACPI_HANDLE(&pdev->dev);
- if (!root_handle) {
- IWL_DEBUG_LAR(mvm,
- "Could not retrieve root port ACPI handle\n");
- return -ENOENT;
- }
-
- /* Get the method's handle */
- status = acpi_get_handle(root_handle, (acpi_string)WRD_METHOD, &handle);
- if (ACPI_FAILURE(status)) {
- IWL_DEBUG_LAR(mvm, "WRD method not found\n");
- return -ENOENT;
- }
-
- /* Call WRDD with no arguments */
- status = acpi_evaluate_object(handle, NULL, NULL, &wrdd);
- if (ACPI_FAILURE(status)) {
- IWL_DEBUG_LAR(mvm, "WRDC invocation failed (0x%x)\n", status);
- return -ENOENT;
- }
-
- mcc_val = iwl_mvm_wrdd_get_mcc(mvm, wrdd.pointer);
- kfree(wrdd.pointer);
- if (!mcc_val)
- return -ENOENT;
-
- mcc[0] = (mcc_val >> 8) & 0xff;
- mcc[1] = mcc_val & 0xff;
- mcc[2] = '\0';
- return 0;
-}
-#else /* CONFIG_ACPI */
-static int iwl_mvm_get_bios_mcc(struct iwl_mvm *mvm, char *mcc)
-{
- return -ENOENT;
-}
-#endif
-
-int iwl_mvm_init_mcc(struct iwl_mvm *mvm)
-{
- bool tlv_lar;
- bool nvm_lar;
- int retval;
- struct ieee80211_regdomain *regd;
- char mcc[3];
-
- if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000) {
- tlv_lar = fw_has_capa(&mvm->fw->ucode_capa,
- IWL_UCODE_TLV_CAPA_LAR_SUPPORT);
- nvm_lar = mvm->nvm_data->lar_enabled;
- if (tlv_lar != nvm_lar)
- IWL_INFO(mvm,
- "Conflict between TLV & NVM regarding enabling LAR (TLV = %s NVM =%s)\n",
- tlv_lar ? "enabled" : "disabled",
- nvm_lar ? "enabled" : "disabled");
- }
-
- if (!iwl_mvm_is_lar_supported(mvm))
- return 0;
-
- /*
- * try to replay the last set MCC to FW. If it doesn't exist,
- * queue an update to cfg80211 to retrieve the default alpha2 from FW.
- */
- retval = iwl_mvm_init_fw_regd(mvm);
- if (retval != -ENOENT)
- return retval;
-
- /*
- * Driver regulatory hint for initial update, this also informs the
- * firmware we support wifi location updates.
- * Disallow scans that might crash the FW while the LAR regdomain
- * is not set.
- */
- mvm->lar_regdom_set = false;
-
- regd = iwl_mvm_get_current_regdomain(mvm, NULL);
- if (IS_ERR_OR_NULL(regd))
- return -EIO;
-
- if (iwl_mvm_is_wifi_mcc_supported(mvm) &&
- !iwl_mvm_get_bios_mcc(mvm, mcc)) {
- kfree(regd);
- regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, mcc,
- MCC_SOURCE_BIOS, NULL);
- if (IS_ERR_OR_NULL(regd))
- return -EIO;
- }
-
- retval = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd);
- kfree(regd);
- return retval;
-}
-
-void iwl_mvm_rx_chub_update_mcc(struct iwl_mvm *mvm,
- struct iwl_rx_cmd_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl_mcc_chub_notif *notif = (void *)pkt->data;
- enum iwl_mcc_source src;
- char mcc[3];
- struct ieee80211_regdomain *regd;
-
- lockdep_assert_held(&mvm->mutex);
-
- if (WARN_ON_ONCE(!iwl_mvm_is_lar_supported(mvm)))
- return;
-
- mcc[0] = notif->mcc >> 8;
- mcc[1] = notif->mcc & 0xff;
- mcc[2] = '\0';
- src = notif->source_id;
-
- IWL_DEBUG_LAR(mvm,
- "RX: received chub update mcc cmd (mcc '%s' src %d)\n",
- mcc, src);
- regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, mcc, src, NULL);
- if (IS_ERR_OR_NULL(regd))
- return;
-
- regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
- kfree(regd);
-}
projects / cascardo / linux.git / blobdiff