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ubuntu-linux-kernel/drivers/net/wireless/intel/iwlwifi/iwl-drv.c

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/******************************************************************************
*
* 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) 2007 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland 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 <linuxwifi@intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
* BSD LICENSE
*
* Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland 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/completion.h>
#include <linux/dma-mapping.h>
#include <linux/firmware.h>
#include <linux/module.h>
#include <linux/vmalloc.h>
#include "iwl-drv.h"
#include "iwl-csr.h"
#include "iwl-debug.h"
#include "iwl-trans.h"
#include "iwl-op-mode.h"
#include "iwl-agn-hw.h"
#include "fw/img.h"
#include "iwl-config.h"
#include "iwl-modparams.h"
/******************************************************************************
*
* module boiler plate
*
******************************************************************************/
#define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
MODULE_DESCRIPTION(DRV_DESCRIPTION);
MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
MODULE_LICENSE("GPL");
#ifdef CONFIG_IWLWIFI_DEBUGFS
static struct dentry *iwl_dbgfs_root;
#endif
/**
* struct iwl_drv - drv common data
* @list: list of drv structures using this opmode
* @fw: the iwl_fw structure
* @op_mode: the running op_mode
* @trans: transport layer
* @dev: for debug prints only
* @fw_index: firmware revision to try loading
* @firmware_name: composite filename of ucode file to load
* @request_firmware_complete: the firmware has been obtained from user space
*/
struct iwl_drv {
struct list_head list;
struct iwl_fw fw;
struct iwl_op_mode *op_mode;
struct iwl_trans *trans;
struct device *dev;
int fw_index; /* firmware we're trying to load */
char firmware_name[64]; /* name of firmware file to load */
struct completion request_firmware_complete;
#ifdef CONFIG_IWLWIFI_DEBUGFS
struct dentry *dbgfs_drv;
struct dentry *dbgfs_trans;
struct dentry *dbgfs_op_mode;
#endif
};
enum {
DVM_OP_MODE,
MVM_OP_MODE,
};
/* Protects the table contents, i.e. the ops pointer & drv list */
static struct mutex iwlwifi_opmode_table_mtx;
static struct iwlwifi_opmode_table {
const char *name; /* name: iwldvm, iwlmvm, etc */
const struct iwl_op_mode_ops *ops; /* pointer to op_mode ops */
struct list_head drv; /* list of devices using this op_mode */
} iwlwifi_opmode_table[] = { /* ops set when driver is initialized */
[DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
[MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
};
#define IWL_DEFAULT_SCAN_CHANNELS 40
/*
* struct fw_sec: Just for the image parsing process.
* For the fw storage we are using struct fw_desc.
*/
struct fw_sec {
const void *data; /* the sec data */
size_t size; /* section size */
u32 offset; /* offset of writing in the device */
};
static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
{
vfree(desc->data);
desc->data = NULL;
desc->len = 0;
}
static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
{
int i;
for (i = 0; i < img->num_sec; i++)
iwl_free_fw_desc(drv, &img->sec[i]);
kfree(img->sec);
}
static void iwl_dealloc_ucode(struct iwl_drv *drv)
{
int i;
kfree(drv->fw.dbg_dest_tlv);
for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++)
kfree(drv->fw.dbg_conf_tlv[i]);
for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++)
kfree(drv->fw.dbg_trigger_tlv[i]);
kfree(drv->fw.dbg_mem_tlv);
for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
iwl_free_fw_img(drv, drv->fw.img + i);
}
static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
struct fw_sec *sec)
{
void *data;
desc->data = NULL;
if (!sec || !sec->size)
return -EINVAL;
data = vmalloc(sec->size);
if (!data)
return -ENOMEM;
desc->len = sec->size;
desc->offset = sec->offset;
memcpy(data, sec->data, desc->len);
desc->data = data;
return 0;
}
static void iwl_req_fw_callback(const struct firmware *ucode_raw,
void *context);
static int iwl_request_firmware(struct iwl_drv *drv, bool first)
{
const struct iwl_cfg *cfg = drv->trans->cfg;
char tag[8];
const char *fw_pre_name;
if (drv->trans->cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
(CSR_HW_REV_STEP(drv->trans->hw_rev) == SILICON_B_STEP ||
CSR_HW_REV_STEP(drv->trans->hw_rev) == SILICON_C_STEP))
fw_pre_name = cfg->fw_name_pre_b_or_c_step;
else if (drv->trans->cfg->integrated &&
CSR_HW_RFID_STEP(drv->trans->hw_rf_id) == SILICON_B_STEP &&
cfg->fw_name_pre_rf_next_step)
fw_pre_name = cfg->fw_name_pre_rf_next_step;
else
fw_pre_name = cfg->fw_name_pre;
if (first) {
drv->fw_index = cfg->ucode_api_max;
sprintf(tag, "%d", drv->fw_index);
} else {
drv->fw_index--;
sprintf(tag, "%d", drv->fw_index);
}
if (drv->fw_index < cfg->ucode_api_min) {
IWL_ERR(drv, "no suitable firmware found!\n");
if (cfg->ucode_api_min == cfg->ucode_api_max) {
IWL_ERR(drv, "%s%d is required\n", fw_pre_name,
cfg->ucode_api_max);
} else {
IWL_ERR(drv, "minimum version required: %s%d\n",
fw_pre_name,
cfg->ucode_api_min);
IWL_ERR(drv, "maximum version supported: %s%d\n",
fw_pre_name,
cfg->ucode_api_max);
}
IWL_ERR(drv,
"check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
return -ENOENT;
}
snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
fw_pre_name, tag);
IWL_DEBUG_INFO(drv, "attempting to load firmware '%s'\n",
drv->firmware_name);
return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
drv->trans->dev,
GFP_KERNEL, drv, iwl_req_fw_callback);
}
struct fw_img_parsing {
struct fw_sec *sec;
int sec_counter;
};
/*
* struct fw_sec_parsing: to extract fw section and it's offset from tlv
*/
struct fw_sec_parsing {
__le32 offset;
const u8 data[];
} __packed;
/**
* struct iwl_tlv_calib_data - parse the default calib data from TLV
*
* @ucode_type: the uCode to which the following default calib relates.
* @calib: default calibrations.
*/
struct iwl_tlv_calib_data {
__le32 ucode_type;
struct iwl_tlv_calib_ctrl calib;
} __packed;
struct iwl_firmware_pieces {
struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
/* FW debug data parsed for driver usage */
struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
size_t n_dbg_mem_tlv;
};
/*
* These functions are just to extract uCode section data from the pieces
* structure.
*/
static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
enum iwl_ucode_type type,
int sec)
{
return &pieces->img[type].sec[sec];
}
static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
enum iwl_ucode_type type,
int sec)
{
struct fw_img_parsing *img = &pieces->img[type];
struct fw_sec *sec_memory;
int size = sec + 1;
size_t alloc_size = sizeof(*img->sec) * size;
if (img->sec && img->sec_counter >= size)
return;
sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
if (!sec_memory)
return;
img->sec = sec_memory;
img->sec_counter = size;
}
static void set_sec_data(struct iwl_firmware_pieces *pieces,
enum iwl_ucode_type type,
int sec,
const void *data)
{
alloc_sec_data(pieces, type, sec);
pieces->img[type].sec[sec].data = data;
}
static void set_sec_size(struct iwl_firmware_pieces *pieces,
enum iwl_ucode_type type,
int sec,
size_t size)
{
alloc_sec_data(pieces, type, sec);
pieces->img[type].sec[sec].size = size;
}
static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
enum iwl_ucode_type type,
int sec)
{
return pieces->img[type].sec[sec].size;
}
static void set_sec_offset(struct iwl_firmware_pieces *pieces,
enum iwl_ucode_type type,
int sec,
u32 offset)
{
alloc_sec_data(pieces, type, sec);
pieces->img[type].sec[sec].offset = offset;
}
static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
{
int i, j;
struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
struct iwl_fw_cipher_scheme *fwcs;
if (len < sizeof(*l) ||
len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
return -EINVAL;
for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
fwcs = &l->cs[j];
/* we skip schemes with zero cipher suite selector */
if (!fwcs->cipher)
continue;
fw->cs[j++] = *fwcs;
}
return 0;
}
static void iwl_store_gscan_capa(struct iwl_fw *fw, const u8 *data,
const u32 len)
{
struct iwl_fw_gscan_capabilities *fw_capa = (void *)data;
struct iwl_gscan_capabilities *capa = &fw->gscan_capa;
capa->max_scan_cache_size = le32_to_cpu(fw_capa->max_scan_cache_size);
capa->max_scan_buckets = le32_to_cpu(fw_capa->max_scan_buckets);
capa->max_ap_cache_per_scan =
le32_to_cpu(fw_capa->max_ap_cache_per_scan);
capa->max_rssi_sample_size = le32_to_cpu(fw_capa->max_rssi_sample_size);
capa->max_scan_reporting_threshold =
le32_to_cpu(fw_capa->max_scan_reporting_threshold);
capa->max_hotlist_aps = le32_to_cpu(fw_capa->max_hotlist_aps);
capa->max_significant_change_aps =
le32_to_cpu(fw_capa->max_significant_change_aps);
capa->max_bssid_history_entries =
le32_to_cpu(fw_capa->max_bssid_history_entries);
capa->max_hotlist_ssids = le32_to_cpu(fw_capa->max_hotlist_ssids);
capa->max_number_epno_networks =
le32_to_cpu(fw_capa->max_number_epno_networks);
capa->max_number_epno_networks_by_ssid =
le32_to_cpu(fw_capa->max_number_epno_networks_by_ssid);
capa->max_number_of_white_listed_ssid =
le32_to_cpu(fw_capa->max_number_of_white_listed_ssid);
capa->max_number_of_black_listed_ssid =
le32_to_cpu(fw_capa->max_number_of_black_listed_ssid);
}
/*
* Gets uCode section from tlv.
*/
static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
const void *data, enum iwl_ucode_type type,
int size)
{
struct fw_img_parsing *img;
struct fw_sec *sec;
struct fw_sec_parsing *sec_parse;
size_t alloc_size;
if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
return -1;
sec_parse = (struct fw_sec_parsing *)data;
img = &pieces->img[type];
alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
if (!sec)
return -ENOMEM;
img->sec = sec;
sec = &img->sec[img->sec_counter];
sec->offset = le32_to_cpu(sec_parse->offset);
sec->data = sec_parse->data;
sec->size = size - sizeof(sec_parse->offset);
++img->sec_counter;
return 0;
}
static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
{
struct iwl_tlv_calib_data *def_calib =
(struct iwl_tlv_calib_data *)data;
u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
if (ucode_type >= IWL_UCODE_TYPE_MAX) {
IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
ucode_type);
return -EINVAL;
}
drv->fw.default_calib[ucode_type].flow_trigger =
def_calib->calib.flow_trigger;
drv->fw.default_calib[ucode_type].event_trigger =
def_calib->calib.event_trigger;
return 0;
}
static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
struct iwl_ucode_capabilities *capa)
{
const struct iwl_ucode_api *ucode_api = (void *)data;
u32 api_index = le32_to_cpu(ucode_api->api_index);
u32 api_flags = le32_to_cpu(ucode_api->api_flags);
int i;
if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
IWL_WARN(drv,
"api flags index %d larger than supported by driver\n",
api_index);
return;
}
for (i = 0; i < 32; i++) {
if (api_flags & BIT(i))
__set_bit(i + 32 * api_index, capa->_api);
}
}
static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
struct iwl_ucode_capabilities *capa)
{
const struct iwl_ucode_capa *ucode_capa = (void *)data;
u32 api_index = le32_to_cpu(ucode_capa->api_index);
u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
int i;
if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
IWL_WARN(drv,
"capa flags index %d larger than supported by driver\n",
api_index);
return;
}
for (i = 0; i < 32; i++) {
if (api_flags & BIT(i))
__set_bit(i + 32 * api_index, capa->_capa);
}
}
static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
const struct firmware *ucode_raw,
struct iwl_firmware_pieces *pieces)
{
struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
u32 api_ver, hdr_size, build;
char buildstr[25];
const u8 *src;
drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
switch (api_ver) {
default:
hdr_size = 28;
if (ucode_raw->size < hdr_size) {
IWL_ERR(drv, "File size too small!\n");
return -EINVAL;
}
build = le32_to_cpu(ucode->u.v2.build);
set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
le32_to_cpu(ucode->u.v2.inst_size));
set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
le32_to_cpu(ucode->u.v2.data_size));
set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
le32_to_cpu(ucode->u.v2.init_size));
set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
le32_to_cpu(ucode->u.v2.init_data_size));
src = ucode->u.v2.data;
break;
case 0:
case 1:
case 2:
hdr_size = 24;
if (ucode_raw->size < hdr_size) {
IWL_ERR(drv, "File size too small!\n");
return -EINVAL;
}
build = 0;
set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
le32_to_cpu(ucode->u.v1.inst_size));
set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
le32_to_cpu(ucode->u.v1.data_size));
set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
le32_to_cpu(ucode->u.v1.init_size));
set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
le32_to_cpu(ucode->u.v1.init_data_size));
src = ucode->u.v1.data;
break;
}
if (build)
sprintf(buildstr, " build %u", build);
else
buildstr[0] = '\0';
snprintf(drv->fw.fw_version,
sizeof(drv->fw.fw_version),
"%u.%u.%u.%u%s",
IWL_UCODE_MAJOR(drv->fw.ucode_ver),
IWL_UCODE_MINOR(drv->fw.ucode_ver),
IWL_UCODE_API(drv->fw.ucode_ver),
IWL_UCODE_SERIAL(drv->fw.ucode_ver),
buildstr);
/* Verify size of file vs. image size info in file's header */
if (ucode_raw->size != hdr_size +
get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
IWL_ERR(drv,
"uCode file size %d does not match expected size\n",
(int)ucode_raw->size);
return -EINVAL;
}
set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
IWLAGN_RTC_INST_LOWER_BOUND);
set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
IWLAGN_RTC_DATA_LOWER_BOUND);
set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
IWLAGN_RTC_INST_LOWER_BOUND);
set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
IWLAGN_RTC_DATA_LOWER_BOUND);
return 0;
}
static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
const struct firmware *ucode_raw,
struct iwl_firmware_pieces *pieces,
struct iwl_ucode_capabilities *capa,
bool *usniffer_images)
{
struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
struct iwl_ucode_tlv *tlv;
size_t len = ucode_raw->size;
const u8 *data;
u32 tlv_len;
u32 usniffer_img;
enum iwl_ucode_tlv_type tlv_type;
const u8 *tlv_data;
char buildstr[25];
u32 build, paging_mem_size;
int num_of_cpus;
bool usniffer_req = false;
bool gscan_capa = false;
if (len < sizeof(*ucode)) {
IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
return -EINVAL;
}
if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
le32_to_cpu(ucode->magic));
return -EINVAL;
}
drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
memcpy(drv->fw.human_readable, ucode->human_readable,
sizeof(drv->fw.human_readable));
build = le32_to_cpu(ucode->build);
if (build)
sprintf(buildstr, " build %u", build);
else
buildstr[0] = '\0';
snprintf(drv->fw.fw_version,
sizeof(drv->fw.fw_version),
"%u.%u.%u.%u%s",
IWL_UCODE_MAJOR(drv->fw.ucode_ver),
IWL_UCODE_MINOR(drv->fw.ucode_ver),
IWL_UCODE_API(drv->fw.ucode_ver),
IWL_UCODE_SERIAL(drv->fw.ucode_ver),
buildstr);
data = ucode->data;
len -= sizeof(*ucode);
while (len >= sizeof(*tlv)) {
len -= sizeof(*tlv);
tlv = (void *)data;
tlv_len = le32_to_cpu(tlv->length);
tlv_type = le32_to_cpu(tlv->type);
tlv_data = tlv->data;
if (len < tlv_len) {
IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
len, tlv_len);
return -EINVAL;
}
len -= ALIGN(tlv_len, 4);
data += sizeof(*tlv) + ALIGN(tlv_len, 4);
switch (tlv_type) {
case IWL_UCODE_TLV_INST:
set_sec_data(pieces, IWL_UCODE_REGULAR,
IWL_UCODE_SECTION_INST, tlv_data);
set_sec_size(pieces, IWL_UCODE_REGULAR,
IWL_UCODE_SECTION_INST, tlv_len);
set_sec_offset(pieces, IWL_UCODE_REGULAR,
IWL_UCODE_SECTION_INST,
IWLAGN_RTC_INST_LOWER_BOUND);
break;
case IWL_UCODE_TLV_DATA:
set_sec_data(pieces, IWL_UCODE_REGULAR,
IWL_UCODE_SECTION_DATA, tlv_data);
set_sec_size(pieces, IWL_UCODE_REGULAR,
IWL_UCODE_SECTION_DATA, tlv_len);
set_sec_offset(pieces, IWL_UCODE_REGULAR,
IWL_UCODE_SECTION_DATA,
IWLAGN_RTC_DATA_LOWER_BOUND);
break;
case IWL_UCODE_TLV_INIT:
set_sec_data(pieces, IWL_UCODE_INIT,
IWL_UCODE_SECTION_INST, tlv_data);
set_sec_size(pieces, IWL_UCODE_INIT,
IWL_UCODE_SECTION_INST, tlv_len);
set_sec_offset(pieces, IWL_UCODE_INIT,
IWL_UCODE_SECTION_INST,
IWLAGN_RTC_INST_LOWER_BOUND);
break;
case IWL_UCODE_TLV_INIT_DATA:
set_sec_data(pieces, IWL_UCODE_INIT,
IWL_UCODE_SECTION_DATA, tlv_data);
set_sec_size(pieces, IWL_UCODE_INIT,
IWL_UCODE_SECTION_DATA, tlv_len);
set_sec_offset(pieces, IWL_UCODE_INIT,
IWL_UCODE_SECTION_DATA,
IWLAGN_RTC_DATA_LOWER_BOUND);
break;
case IWL_UCODE_TLV_BOOT:
IWL_ERR(drv, "Found unexpected BOOT ucode\n");
break;
case IWL_UCODE_TLV_PROBE_MAX_LEN:
if (tlv_len != sizeof(u32))
goto invalid_tlv_len;
capa->max_probe_length =
le32_to_cpup((__le32 *)tlv_data);
break;
case IWL_UCODE_TLV_PAN:
if (tlv_len)
goto invalid_tlv_len;
capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
break;
case IWL_UCODE_TLV_FLAGS:
/* must be at least one u32 */
if (tlv_len < sizeof(u32))
goto invalid_tlv_len;
/* and a proper number of u32s */
if (tlv_len % sizeof(u32))
goto invalid_tlv_len;
/*
* This driver only reads the first u32 as
* right now no more features are defined,
* if that changes then either the driver
* will not work with the new firmware, or
* it'll not take advantage of new features.
*/
capa->flags = le32_to_cpup((__le32 *)tlv_data);
break;
case IWL_UCODE_TLV_API_CHANGES_SET:
if (tlv_len != sizeof(struct iwl_ucode_api))
goto invalid_tlv_len;
iwl_set_ucode_api_flags(drv, tlv_data, capa);
break;
case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
if (tlv_len != sizeof(struct iwl_ucode_capa))
goto invalid_tlv_len;
iwl_set_ucode_capabilities(drv, tlv_data, capa);
break;
case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
if (tlv_len != sizeof(u32))
goto invalid_tlv_len;
pieces->init_evtlog_ptr =
le32_to_cpup((__le32 *)tlv_data);
break;
case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
if (tlv_len != sizeof(u32))
goto invalid_tlv_len;
pieces->init_evtlog_size =
le32_to_cpup((__le32 *)tlv_data);
break;
case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
if (tlv_len != sizeof(u32))
goto invalid_tlv_len;
pieces->init_errlog_ptr =
le32_to_cpup((__le32 *)tlv_data);
break;
case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
if (tlv_len != sizeof(u32))
goto invalid_tlv_len;
pieces->inst_evtlog_ptr =
le32_to_cpup((__le32 *)tlv_data);
break;
case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
if (tlv_len != sizeof(u32))
goto invalid_tlv_len;
pieces->inst_evtlog_size =
le32_to_cpup((__le32 *)tlv_data);
break;
case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
if (tlv_len != sizeof(u32))
goto invalid_tlv_len;
pieces->inst_errlog_ptr =
le32_to_cpup((__le32 *)tlv_data);
break;
case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
if (tlv_len)
goto invalid_tlv_len;
drv->fw.enhance_sensitivity_table = true;
break;
case IWL_UCODE_TLV_WOWLAN_INST:
set_sec_data(pieces, IWL_UCODE_WOWLAN,
IWL_UCODE_SECTION_INST, tlv_data);
set_sec_size(pieces, IWL_UCODE_WOWLAN,
IWL_UCODE_SECTION_INST, tlv_len);
set_sec_offset(pieces, IWL_UCODE_WOWLAN,
IWL_UCODE_SECTION_INST,
IWLAGN_RTC_INST_LOWER_BOUND);
break;
case IWL_UCODE_TLV_WOWLAN_DATA:
set_sec_data(pieces, IWL_UCODE_WOWLAN,
IWL_UCODE_SECTION_DATA, tlv_data);
set_sec_size(pieces, IWL_UCODE_WOWLAN,
IWL_UCODE_SECTION_DATA, tlv_len);
set_sec_offset(pieces, IWL_UCODE_WOWLAN,
IWL_UCODE_SECTION_DATA,
IWLAGN_RTC_DATA_LOWER_BOUND);
break;
case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
if (tlv_len != sizeof(u32))
goto invalid_tlv_len;
capa->standard_phy_calibration_size =
le32_to_cpup((__le32 *)tlv_data);
break;
case IWL_UCODE_TLV_SEC_RT:
iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
tlv_len);
drv->fw.type = IWL_FW_MVM;
break;
case IWL_UCODE_TLV_SEC_INIT:
iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
tlv_len);
drv->fw.type = IWL_FW_MVM;
break;
case IWL_UCODE_TLV_SEC_WOWLAN:
iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
tlv_len);
drv->fw.type = IWL_FW_MVM;
break;
case IWL_UCODE_TLV_DEF_CALIB:
if (tlv_len != sizeof(struct iwl_tlv_calib_data))
goto invalid_tlv_len;
if (iwl_set_default_calib(drv, tlv_data))
goto tlv_error;
break;
case IWL_UCODE_TLV_PHY_SKU:
if (tlv_len != sizeof(u32))
goto invalid_tlv_len;
drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
drv->fw.valid_tx_ant = (drv->fw.phy_config &
FW_PHY_CFG_TX_CHAIN) >>
FW_PHY_CFG_TX_CHAIN_POS;
drv->fw.valid_rx_ant = (drv->fw.phy_config &
FW_PHY_CFG_RX_CHAIN) >>
FW_PHY_CFG_RX_CHAIN_POS;
break;
case IWL_UCODE_TLV_SECURE_SEC_RT:
iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
tlv_len);
drv->fw.type = IWL_FW_MVM;
break;
case IWL_UCODE_TLV_SECURE_SEC_INIT:
iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
tlv_len);
drv->fw.type = IWL_FW_MVM;
break;
case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
tlv_len);
drv->fw.type = IWL_FW_MVM;
break;
case IWL_UCODE_TLV_NUM_OF_CPU:
if (tlv_len != sizeof(u32))
goto invalid_tlv_len;
num_of_cpus =
le32_to_cpup((__le32 *)tlv_data);
if (num_of_cpus == 2) {
drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
true;
drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
true;
drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
true;
} else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
IWL_ERR(drv, "Driver support upto 2 CPUs\n");
return -EINVAL;
}
break;
case IWL_UCODE_TLV_CSCHEME:
if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
goto invalid_tlv_len;
break;
case IWL_UCODE_TLV_N_SCAN_CHANNELS:
if (tlv_len != sizeof(u32))
goto invalid_tlv_len;
capa->n_scan_channels =
le32_to_cpup((__le32 *)tlv_data);
break;
case IWL_UCODE_TLV_FW_VERSION: {
__le32 *ptr = (void *)tlv_data;
u32 major, minor;
u8 local_comp;
if (tlv_len != sizeof(u32) * 3)
goto invalid_tlv_len;
major = le32_to_cpup(ptr++);
minor = le32_to_cpup(ptr++);
local_comp = le32_to_cpup(ptr);
snprintf(drv->fw.fw_version,
sizeof(drv->fw.fw_version), "%u.%u.%u",
major, minor, local_comp);
break;
}
case IWL_UCODE_TLV_FW_DBG_DEST: {
struct iwl_fw_dbg_dest_tlv *dest = (void *)tlv_data;
if (pieces->dbg_dest_tlv) {
IWL_ERR(drv,
"dbg destination ignored, already exists\n");
break;
}
pieces->dbg_dest_tlv = dest;
IWL_INFO(drv, "Found debug destination: %s\n",
get_fw_dbg_mode_string(dest->monitor_mode));
drv->fw.dbg_dest_reg_num =
tlv_len - offsetof(struct iwl_fw_dbg_dest_tlv,
reg_ops);
drv->fw.dbg_dest_reg_num /=
sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]);
break;
}
case IWL_UCODE_TLV_FW_DBG_CONF: {
struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
if (!pieces->dbg_dest_tlv) {
IWL_ERR(drv,
"Ignore dbg config %d - no destination configured\n",
conf->id);
break;
}
if (conf->id >= ARRAY_SIZE(drv->fw.dbg_conf_tlv)) {
IWL_ERR(drv,
"Skip unknown configuration: %d\n",
conf->id);
break;
}
if (pieces->dbg_conf_tlv[conf->id]) {
IWL_ERR(drv,
"Ignore duplicate dbg config %d\n",
conf->id);
break;
}
if (conf->usniffer)
usniffer_req = true;
IWL_INFO(drv, "Found debug configuration: %d\n",
conf->id);
pieces->dbg_conf_tlv[conf->id] = conf;
pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
break;
}
case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
struct iwl_fw_dbg_trigger_tlv *trigger =
(void *)tlv_data;
u32 trigger_id = le32_to_cpu(trigger->id);
if (trigger_id >= ARRAY_SIZE(drv->fw.dbg_trigger_tlv)) {
IWL_ERR(drv,
"Skip unknown trigger: %u\n",
trigger->id);
break;
}
if (pieces->dbg_trigger_tlv[trigger_id]) {
IWL_ERR(drv,
"Ignore duplicate dbg trigger %u\n",
trigger->id);
break;
}
IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
pieces->dbg_trigger_tlv[trigger_id] = trigger;
pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
break;
}
case IWL_UCODE_TLV_SEC_RT_USNIFFER:
*usniffer_images = true;
iwl_store_ucode_sec(pieces, tlv_data,
IWL_UCODE_REGULAR_USNIFFER,
tlv_len);
break;
case IWL_UCODE_TLV_PAGING:
if (tlv_len != sizeof(u32))
goto invalid_tlv_len;
paging_mem_size = le32_to_cpup((__le32 *)tlv_data);
IWL_DEBUG_FW(drv,
"Paging: paging enabled (size = %u bytes)\n",
paging_mem_size);
if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
IWL_ERR(drv,
"Paging: driver supports up to %lu bytes for paging image\n",
MAX_PAGING_IMAGE_SIZE);
return -EINVAL;
}
if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
IWL_ERR(drv,
"Paging: image isn't multiple %lu\n",
FW_PAGING_SIZE);
return -EINVAL;
}
drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
paging_mem_size;
usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
drv->fw.img[usniffer_img].paging_mem_size =
paging_mem_size;
break;
case IWL_UCODE_TLV_FW_GSCAN_CAPA:
/*
* Don't return an error in case of a shorter tlv_len
* to enable loading of FW that has an old format
* of GSCAN capabilities TLV.
*/
if (tlv_len < sizeof(struct iwl_fw_gscan_capabilities))
break;
iwl_store_gscan_capa(&drv->fw, tlv_data, tlv_len);
gscan_capa = true;
break;
case IWL_UCODE_TLV_FW_MEM_SEG: {
struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
(void *)tlv_data;
u32 type;
size_t size;
struct iwl_fw_dbg_mem_seg_tlv *n;
if (tlv_len != (sizeof(*dbg_mem)))
goto invalid_tlv_len;
type = le32_to_cpu(dbg_mem->data_type);
IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
dbg_mem->data_type);
switch (type & FW_DBG_MEM_TYPE_MASK) {
case FW_DBG_MEM_TYPE_REGULAR:
case FW_DBG_MEM_TYPE_PRPH:
/* we know how to handle these */
break;
default:
IWL_ERR(drv,
"Found debug memory segment with invalid type: 0x%x\n",
type);
return -EINVAL;
}
size = sizeof(*pieces->dbg_mem_tlv) *
(pieces->n_dbg_mem_tlv + 1);
n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
if (!n)
return -ENOMEM;
pieces->dbg_mem_tlv = n;
pieces->dbg_mem_tlv[pieces->n_dbg_mem_tlv] = *dbg_mem;
pieces->n_dbg_mem_tlv++;
break;
}
default:
IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
break;
}
}
if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
usniffer_req && !*usniffer_images) {
IWL_ERR(drv,
"user selected to work with usniffer but usniffer image isn't available in ucode package\n");
return -EINVAL;
}
if (len) {
IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
return -EINVAL;
}
/*
* If ucode advertises that it supports GSCAN but GSCAN
* capabilities TLV is not present, or if it has an old format,
* warn and continue without GSCAN.
*/
if (fw_has_capa(capa, IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT) &&
!gscan_capa) {
IWL_DEBUG_INFO(drv,
"GSCAN is supported but capabilities TLV is unavailable\n");
__clear_bit((__force long)IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT,
capa->_capa);
}
return 0;
invalid_tlv_len:
IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
tlv_error:
iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
return -EINVAL;
}
static int iwl_alloc_ucode(struct iwl_drv *drv,
struct iwl_firmware_pieces *pieces,
enum iwl_ucode_type type)
{
int i;
struct fw_desc *sec;
sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
if (!sec)
return -ENOMEM;
drv->fw.img[type].sec = sec;
drv->fw.img[type].num_sec = pieces->img[type].sec_counter;
for (i = 0; i < pieces->img[type].sec_counter; i++)
if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
return -ENOMEM;
return 0;
}
static int validate_sec_sizes(struct iwl_drv *drv,
struct iwl_firmware_pieces *pieces,
const struct iwl_cfg *cfg)
{
IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
get_sec_size(pieces, IWL_UCODE_REGULAR,
IWL_UCODE_SECTION_INST));
IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
get_sec_size(pieces, IWL_UCODE_REGULAR,
IWL_UCODE_SECTION_DATA));
IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
/* Verify that uCode images will fit in card's SRAM. */
if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
cfg->max_inst_size) {
IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
get_sec_size(pieces, IWL_UCODE_REGULAR,
IWL_UCODE_SECTION_INST));
return -1;
}
if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
cfg->max_data_size) {
IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
get_sec_size(pieces, IWL_UCODE_REGULAR,
IWL_UCODE_SECTION_DATA));
return -1;
}
if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
cfg->max_inst_size) {
IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
get_sec_size(pieces, IWL_UCODE_INIT,
IWL_UCODE_SECTION_INST));
return -1;
}
if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
cfg->max_data_size) {
IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
get_sec_size(pieces, IWL_UCODE_REGULAR,
IWL_UCODE_SECTION_DATA));
return -1;
}
return 0;
}
static struct iwl_op_mode *
_iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
{
const struct iwl_op_mode_ops *ops = op->ops;
struct dentry *dbgfs_dir = NULL;
struct iwl_op_mode *op_mode = NULL;
#ifdef CONFIG_IWLWIFI_DEBUGFS
drv->dbgfs_op_mode = debugfs_create_dir(op->name,
drv->dbgfs_drv);
if (!drv->dbgfs_op_mode) {
IWL_ERR(drv,
"failed to create opmode debugfs directory\n");
return op_mode;
}
dbgfs_dir = drv->dbgfs_op_mode;
#endif
op_mode = ops->start(drv->trans, drv->trans->cfg, &drv->fw, dbgfs_dir);
#ifdef CONFIG_IWLWIFI_DEBUGFS
if (!op_mode) {
debugfs_remove_recursive(drv->dbgfs_op_mode);
drv->dbgfs_op_mode = NULL;
}
#endif
return op_mode;
}
static void _iwl_op_mode_stop(struct iwl_drv *drv)
{
/* op_mode can be NULL if its start failed */
if (drv->op_mode) {
iwl_op_mode_stop(drv->op_mode);
drv->op_mode = NULL;
#ifdef CONFIG_IWLWIFI_DEBUGFS
debugfs_remove_recursive(drv->dbgfs_op_mode);
drv->dbgfs_op_mode = NULL;
#endif
}
}
/**
* iwl_req_fw_callback - callback when firmware was loaded
*
* If loaded successfully, copies the firmware into buffers
* for the card to fetch (via DMA).
*/
static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
{
struct iwl_drv *drv = context;
struct iwl_fw *fw = &drv->fw;
struct iwl_ucode_header *ucode;
struct iwlwifi_opmode_table *op;
int err;
struct iwl_firmware_pieces *pieces;
const unsigned int api_max = drv->trans->cfg->ucode_api_max;
const unsigned int api_min = drv->trans->cfg->ucode_api_min;
size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
u32 api_ver;
int i;
bool load_module = false;
bool usniffer_images = false;
fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
fw->ucode_capa.standard_phy_calibration_size =
IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
if (!pieces)
goto out_free_fw;
if (!ucode_raw)
goto try_again;
IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
drv->firmware_name, ucode_raw->size);
/* Make sure that we got at least the API version number */
if (ucode_raw->size < 4) {
IWL_ERR(drv, "File size way too small!\n");
goto try_again;
}
/* Data from ucode file: header followed by uCode images */
ucode = (struct iwl_ucode_header *)ucode_raw->data;
if (ucode->ver)
err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
else
err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
&fw->ucode_capa, &usniffer_images);
if (err)
goto try_again;
if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
api_ver = drv->fw.ucode_ver;
else
api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
/*
* api_ver should match the api version forming part of the
* firmware filename ... but we don't check for that and only rely
* on the API version read from firmware header from here on forward
*/
if (api_ver < api_min || api_ver > api_max) {
IWL_ERR(drv,
"Driver unable to support your firmware API. "
"Driver supports v%u, firmware is v%u.\n",
api_max, api_ver);
goto try_again;
}
/*
* In mvm uCode there is no difference between data and instructions
* sections.
*/
if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
drv->trans->cfg))
goto try_again;
/* Allocate ucode buffers for card's bus-master loading ... */
/* Runtime instructions and 2 copies of data:
* 1) unmodified from disk
* 2) backup cache for save/restore during power-downs
*/
for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
if (iwl_alloc_ucode(drv, pieces, i))
goto out_free_fw;
if (pieces->dbg_dest_tlv) {
drv->fw.dbg_dest_tlv =
kmemdup(pieces->dbg_dest_tlv,
sizeof(*pieces->dbg_dest_tlv) +
sizeof(pieces->dbg_dest_tlv->reg_ops[0]) *
drv->fw.dbg_dest_reg_num, GFP_KERNEL);
if (!drv->fw.dbg_dest_tlv)
goto out_free_fw;
}
for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) {
if (pieces->dbg_conf_tlv[i]) {
drv->fw.dbg_conf_tlv_len[i] =
pieces->dbg_conf_tlv_len[i];
drv->fw.dbg_conf_tlv[i] =
kmemdup(pieces->dbg_conf_tlv[i],
drv->fw.dbg_conf_tlv_len[i],
GFP_KERNEL);
if (!drv->fw.dbg_conf_tlv[i])
goto out_free_fw;
}
}
memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
sizeof(struct iwl_fw_dbg_trigger_cmd);
trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
sizeof(struct iwl_fw_dbg_trigger_mlme);
trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
sizeof(struct iwl_fw_dbg_trigger_stats);
trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
sizeof(struct iwl_fw_dbg_trigger_low_rssi);
trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
sizeof(struct iwl_fw_dbg_trigger_txq_timer);
trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
sizeof(struct iwl_fw_dbg_trigger_time_event);
trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
sizeof(struct iwl_fw_dbg_trigger_ba);
trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
sizeof(struct iwl_fw_dbg_trigger_tdls);
for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) {
if (pieces->dbg_trigger_tlv[i]) {
/*
* If the trigger isn't long enough, WARN and exit.
* Someone is trying to debug something and he won't
* be able to catch the bug he is trying to chase.
* We'd better be noisy to be sure he knows what's
* going on.
*/
if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
(trigger_tlv_sz[i] +
sizeof(struct iwl_fw_dbg_trigger_tlv))))
goto out_free_fw;
drv->fw.dbg_trigger_tlv_len[i] =
pieces->dbg_trigger_tlv_len[i];
drv->fw.dbg_trigger_tlv[i] =
kmemdup(pieces->dbg_trigger_tlv[i],
drv->fw.dbg_trigger_tlv_len[i],
GFP_KERNEL);
if (!drv->fw.dbg_trigger_tlv[i])
goto out_free_fw;
}
}
/* Now that we can no longer fail, copy information */
drv->fw.dbg_mem_tlv = pieces->dbg_mem_tlv;
pieces->dbg_mem_tlv = NULL;
drv->fw.n_dbg_mem_tlv = pieces->n_dbg_mem_tlv;
/*
* The (size - 16) / 12 formula is based on the information recorded
* for each event, which is of mode 1 (including timestamp) for all
* new microcodes that include this information.
*/
fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
if (pieces->init_evtlog_size)
fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
else
fw->init_evtlog_size =
drv->trans->cfg->base_params->max_event_log_size;
fw->init_errlog_ptr = pieces->init_errlog_ptr;
fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
if (pieces->inst_evtlog_size)
fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
else
fw->inst_evtlog_size =
drv->trans->cfg->base_params->max_event_log_size;
fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
/*
* figure out the offset of chain noise reset and gain commands
* base on the size of standard phy calibration commands table size
*/
if (fw->ucode_capa.standard_phy_calibration_size >
IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
fw->ucode_capa.standard_phy_calibration_size =
IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
/* We have our copies now, allow OS release its copies */
release_firmware(ucode_raw);
mutex_lock(&iwlwifi_opmode_table_mtx);
switch (fw->type) {
case IWL_FW_DVM:
op = &iwlwifi_opmode_table[DVM_OP_MODE];
break;
default:
WARN(1, "Invalid fw type %d\n", fw->type);
case IWL_FW_MVM:
op = &iwlwifi_opmode_table[MVM_OP_MODE];
break;
}
IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
drv->fw.fw_version, op->name);
/* add this device to the list of devices using this op_mode */
list_add_tail(&drv->list, &op->drv);
if (op->ops) {
drv->op_mode = _iwl_op_mode_start(drv, op);
if (!drv->op_mode) {
mutex_unlock(&iwlwifi_opmode_table_mtx);
goto out_unbind;
}
} else {
load_module = true;
}
mutex_unlock(&iwlwifi_opmode_table_mtx);
/*
* Complete the firmware request last so that
* a driver unbind (stop) doesn't run while we
* are doing the start() above.
*/
complete(&drv->request_firmware_complete);
/*
* Load the module last so we don't block anything
* else from proceeding if the module fails to load
* or hangs loading.
*/
if (load_module) {
request_module("%s", op->name);
#ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
if (err)
IWL_ERR(drv,
"failed to load module %s (error %d), is dynamic loading enabled?\n",
op->name, err);
#endif
}
goto free;
try_again:
/* try next, if any */
release_firmware(ucode_raw);
if (iwl_request_firmware(drv, false))
goto out_unbind;
goto free;
out_free_fw:
iwl_dealloc_ucode(drv);
release_firmware(ucode_raw);
out_unbind:
complete(&drv->request_firmware_complete);
device_release_driver(drv->trans->dev);
free:
if (pieces) {
for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
kfree(pieces->img[i].sec);
kfree(pieces->dbg_mem_tlv);
kfree(pieces);
}
}
struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
{
struct iwl_drv *drv;
int ret;
drv = kzalloc(sizeof(*drv), GFP_KERNEL);
if (!drv) {
ret = -ENOMEM;
goto err;
}
drv->trans = trans;
drv->dev = trans->dev;
init_completion(&drv->request_firmware_complete);
INIT_LIST_HEAD(&drv->list);
#ifdef CONFIG_IWLWIFI_DEBUGFS
/* Create the device debugfs entries. */
drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
iwl_dbgfs_root);
if (!drv->dbgfs_drv) {
IWL_ERR(drv, "failed to create debugfs directory\n");
ret = -ENOMEM;
goto err_free_drv;
}
/* Create transport layer debugfs dir */
drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
if (!drv->trans->dbgfs_dir) {
IWL_ERR(drv, "failed to create transport debugfs directory\n");
ret = -ENOMEM;
goto err_free_dbgfs;
}
#endif
ret = iwl_request_firmware(drv, true);
if (ret) {
IWL_ERR(trans, "Couldn't request the fw\n");
goto err_fw;
}
return drv;
err_fw:
#ifdef CONFIG_IWLWIFI_DEBUGFS
err_free_dbgfs:
debugfs_remove_recursive(drv->dbgfs_drv);
err_free_drv:
#endif
kfree(drv);
err:
return ERR_PTR(ret);
}
void iwl_drv_stop(struct iwl_drv *drv)
{
wait_for_completion(&drv->request_firmware_complete);
_iwl_op_mode_stop(drv);
iwl_dealloc_ucode(drv);
mutex_lock(&iwlwifi_opmode_table_mtx);
/*
* List is empty (this item wasn't added)
* when firmware loading failed -- in that
* case we can't remove it from any list.
*/
if (!list_empty(&drv->list))
list_del(&drv->list);
mutex_unlock(&iwlwifi_opmode_table_mtx);
#ifdef CONFIG_IWLWIFI_DEBUGFS
debugfs_remove_recursive(drv->dbgfs_drv);
#endif
kfree(drv);
}
/* shared module parameters */
struct iwl_mod_params iwlwifi_mod_params = {
.fw_restart = true,
.bt_coex_active = true,
.power_level = IWL_POWER_INDEX_1,
.d0i3_disable = true,
.d0i3_timeout = 1000,
.uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
/* the rest are 0 by default */
};
IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
{
int i;
struct iwl_drv *drv;
struct iwlwifi_opmode_table *op;
mutex_lock(&iwlwifi_opmode_table_mtx);
for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
op = &iwlwifi_opmode_table[i];
if (strcmp(op->name, name))
continue;
op->ops = ops;
/* TODO: need to handle exceptional case */
list_for_each_entry(drv, &op->drv, list)
drv->op_mode = _iwl_op_mode_start(drv, op);
mutex_unlock(&iwlwifi_opmode_table_mtx);
return 0;
}
mutex_unlock(&iwlwifi_opmode_table_mtx);
return -EIO;
}
IWL_EXPORT_SYMBOL(iwl_opmode_register);
void iwl_opmode_deregister(const char *name)
{
int i;
struct iwl_drv *drv;
mutex_lock(&iwlwifi_opmode_table_mtx);
for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
if (strcmp(iwlwifi_opmode_table[i].name, name))
continue;
iwlwifi_opmode_table[i].ops = NULL;
/* call the stop routine for all devices */
list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
_iwl_op_mode_stop(drv);
mutex_unlock(&iwlwifi_opmode_table_mtx);
return;
}
mutex_unlock(&iwlwifi_opmode_table_mtx);
}
IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
static int __init iwl_drv_init(void)
{
int i;
mutex_init(&iwlwifi_opmode_table_mtx);
for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
pr_info(DRV_DESCRIPTION "\n");
pr_info(DRV_COPYRIGHT "\n");
#ifdef CONFIG_IWLWIFI_DEBUGFS
/* Create the root of iwlwifi debugfs subsystem. */
iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
if (!iwl_dbgfs_root)
return -EFAULT;
#endif
return iwl_pci_register_driver();
}
module_init(iwl_drv_init);
static void __exit iwl_drv_exit(void)
{
iwl_pci_unregister_driver();
#ifdef CONFIG_IWLWIFI_DEBUGFS
debugfs_remove_recursive(iwl_dbgfs_root);
#endif
}
module_exit(iwl_drv_exit);
#ifdef CONFIG_IWLWIFI_DEBUG
module_param_named(debug, iwlwifi_mod_params.debug_level, uint,
S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "debug output mask");
#endif
module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, S_IRUGO);
MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, S_IRUGO);
MODULE_PARM_DESC(11n_disable,
"disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size,
int, S_IRUGO);
MODULE_PARM_DESC(amsdu_size,
"amsdu size 0: 12K for multi Rx queue devices, 4K for other devices 1:4K 2:8K 3:12K (default 0)");
module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, S_IRUGO);
MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
module_param_named(antenna_coupling, iwlwifi_mod_params.antenna_coupling,
int, S_IRUGO);
MODULE_PARM_DESC(antenna_coupling,
"specify antenna coupling in dB (default: 0 dB)");
module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, S_IRUGO);
MODULE_PARM_DESC(nvm_file, "NVM file name");
module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable,
bool, S_IRUGO);
MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)");
module_param_named(lar_disable, iwlwifi_mod_params.lar_disable,
bool, S_IRUGO);
MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)");
module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable,
uint, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(uapsd_disable,
"disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
/*
* set bt_coex_active to true, uCode will do kill/defer
* every time the priority line is asserted (BT is sending signals on the
* priority line in the PCIx).
* set bt_coex_active to false, uCode will ignore the BT activity and
* perform the normal operation
*
* User might experience transmit issue on some platform due to WiFi/BT
* co-exist problem. The possible behaviors are:
* Able to scan and finding all the available AP
* Not able to associate with any AP
* On those platforms, WiFi communication can be restored by set
* "bt_coex_active" module parameter to "false"
*
* default: bt_coex_active = true (BT_COEX_ENABLE)
*/
module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
bool, S_IRUGO);
MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, S_IRUGO);
MODULE_PARM_DESC(led_mode, "0=system default, "
"1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
module_param_named(power_save, iwlwifi_mod_params.power_save,
bool, S_IRUGO);
MODULE_PARM_DESC(power_save,
"enable WiFi power management (default: disable)");
module_param_named(power_level, iwlwifi_mod_params.power_level,
int, S_IRUGO);
MODULE_PARM_DESC(power_level,
"default power save level (range from 1 - 5, default: 1)");
module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, S_IRUGO);
MODULE_PARM_DESC(fw_monitor,
"firmware monitor - to debug FW (default: false - needs lots of memory)");
module_param_named(d0i3_timeout, iwlwifi_mod_params.d0i3_timeout,
uint, S_IRUGO);
MODULE_PARM_DESC(d0i3_timeout, "Timeout to D0i3 entry when idle (ms)");
module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool,
S_IRUGO);
MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");
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