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OpenCloudOS-Kernel/drivers/net/wireless/iwlwifi/iwl-ucode.c

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/******************************************************************************
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2012 Intel Corporation. All rights reserved.
*
* 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 LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/dma-mapping.h>
#include <linux/firmware.h>
#include "iwl-ucode.h"
#include "iwl-wifi.h"
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-io.h"
#include "iwl-agn-hw.h"
#include "iwl-agn.h"
#include "iwl-agn-calib.h"
#include "iwl-trans.h"
#include "iwl-fh.h"
#include "iwl-op-mode.h"
static struct iwl_wimax_coex_event_entry cu_priorities[COEX_NUM_OF_EVENTS] = {
{COEX_CU_UNASSOC_IDLE_RP, COEX_CU_UNASSOC_IDLE_WP,
0, COEX_UNASSOC_IDLE_FLAGS},
{COEX_CU_UNASSOC_MANUAL_SCAN_RP, COEX_CU_UNASSOC_MANUAL_SCAN_WP,
0, COEX_UNASSOC_MANUAL_SCAN_FLAGS},
{COEX_CU_UNASSOC_AUTO_SCAN_RP, COEX_CU_UNASSOC_AUTO_SCAN_WP,
0, COEX_UNASSOC_AUTO_SCAN_FLAGS},
{COEX_CU_CALIBRATION_RP, COEX_CU_CALIBRATION_WP,
0, COEX_CALIBRATION_FLAGS},
{COEX_CU_PERIODIC_CALIBRATION_RP, COEX_CU_PERIODIC_CALIBRATION_WP,
0, COEX_PERIODIC_CALIBRATION_FLAGS},
{COEX_CU_CONNECTION_ESTAB_RP, COEX_CU_CONNECTION_ESTAB_WP,
0, COEX_CONNECTION_ESTAB_FLAGS},
{COEX_CU_ASSOCIATED_IDLE_RP, COEX_CU_ASSOCIATED_IDLE_WP,
0, COEX_ASSOCIATED_IDLE_FLAGS},
{COEX_CU_ASSOC_MANUAL_SCAN_RP, COEX_CU_ASSOC_MANUAL_SCAN_WP,
0, COEX_ASSOC_MANUAL_SCAN_FLAGS},
{COEX_CU_ASSOC_AUTO_SCAN_RP, COEX_CU_ASSOC_AUTO_SCAN_WP,
0, COEX_ASSOC_AUTO_SCAN_FLAGS},
{COEX_CU_ASSOC_ACTIVE_LEVEL_RP, COEX_CU_ASSOC_ACTIVE_LEVEL_WP,
0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS},
{COEX_CU_RF_ON_RP, COEX_CU_RF_ON_WP, 0, COEX_CU_RF_ON_FLAGS},
{COEX_CU_RF_OFF_RP, COEX_CU_RF_OFF_WP, 0, COEX_RF_OFF_FLAGS},
{COEX_CU_STAND_ALONE_DEBUG_RP, COEX_CU_STAND_ALONE_DEBUG_WP,
0, COEX_STAND_ALONE_DEBUG_FLAGS},
{COEX_CU_IPAN_ASSOC_LEVEL_RP, COEX_CU_IPAN_ASSOC_LEVEL_WP,
0, COEX_IPAN_ASSOC_LEVEL_FLAGS},
{COEX_CU_RSRVD1_RP, COEX_CU_RSRVD1_WP, 0, COEX_RSRVD1_FLAGS},
{COEX_CU_RSRVD2_RP, COEX_CU_RSRVD2_WP, 0, COEX_RSRVD2_FLAGS}
};
/******************************************************************************
*
* uCode download functions
*
******************************************************************************/
static void iwl_free_fw_desc(struct iwl_nic *nic, struct fw_desc *desc)
{
if (desc->v_addr)
dma_free_coherent(trans(nic)->dev, desc->len,
desc->v_addr, desc->p_addr);
desc->v_addr = NULL;
desc->len = 0;
}
static void iwl_free_fw_img(struct iwl_nic *nic, struct fw_img *img)
{
iwl_free_fw_desc(nic, &img->code);
iwl_free_fw_desc(nic, &img->data);
}
void iwl_dealloc_ucode(struct iwl_nic *nic)
{
iwl_free_fw_img(nic, &nic->fw.ucode_rt);
iwl_free_fw_img(nic, &nic->fw.ucode_init);
iwl_free_fw_img(nic, &nic->fw.ucode_wowlan);
}
static int iwl_alloc_fw_desc(struct iwl_nic *nic, struct fw_desc *desc,
const void *data, size_t len)
{
if (!len) {
desc->v_addr = NULL;
return -EINVAL;
}
desc->v_addr = dma_alloc_coherent(trans(nic)->dev, len,
&desc->p_addr, GFP_KERNEL);
if (!desc->v_addr)
return -ENOMEM;
desc->len = len;
memcpy(desc->v_addr, data, len);
return 0;
}
static inline struct fw_img *iwl_get_ucode_image(struct iwl_nic *nic,
enum iwl_ucode_type ucode_type)
{
switch (ucode_type) {
case IWL_UCODE_INIT:
return &nic->fw.ucode_init;
case IWL_UCODE_WOWLAN:
return &nic->fw.ucode_wowlan;
case IWL_UCODE_REGULAR:
return &nic->fw.ucode_rt;
case IWL_UCODE_NONE:
break;
}
return NULL;
}
/*
* Calibration
*/
static int iwl_set_Xtal_calib(struct iwl_trans *trans)
{
struct iwl_calib_xtal_freq_cmd cmd;
__le16 *xtal_calib =
(__le16 *)iwl_eeprom_query_addr(trans->shrd, EEPROM_XTAL);
iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD);
cmd.cap_pin1 = le16_to_cpu(xtal_calib[0]);
cmd.cap_pin2 = le16_to_cpu(xtal_calib[1]);
return iwl_calib_set(trans, (void *)&cmd, sizeof(cmd));
}
static int iwl_set_temperature_offset_calib(struct iwl_trans *trans)
{
struct iwl_calib_temperature_offset_cmd cmd;
__le16 *offset_calib =
(__le16 *)iwl_eeprom_query_addr(trans->shrd,
EEPROM_RAW_TEMPERATURE);
memset(&cmd, 0, sizeof(cmd));
iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
memcpy(&cmd.radio_sensor_offset, offset_calib, sizeof(*offset_calib));
if (!(cmd.radio_sensor_offset))
cmd.radio_sensor_offset = DEFAULT_RADIO_SENSOR_OFFSET;
IWL_DEBUG_CALIB(trans, "Radio sensor offset: %d\n",
le16_to_cpu(cmd.radio_sensor_offset));
return iwl_calib_set(trans, (void *)&cmd, sizeof(cmd));
}
static int iwl_set_temperature_offset_calib_v2(struct iwl_trans *trans)
{
struct iwl_calib_temperature_offset_v2_cmd cmd;
__le16 *offset_calib_high = (__le16 *)iwl_eeprom_query_addr(trans->shrd,
EEPROM_KELVIN_TEMPERATURE);
__le16 *offset_calib_low =
(__le16 *)iwl_eeprom_query_addr(trans->shrd,
EEPROM_RAW_TEMPERATURE);
struct iwl_eeprom_calib_hdr *hdr;
memset(&cmd, 0, sizeof(cmd));
iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD);
hdr = (struct iwl_eeprom_calib_hdr *)iwl_eeprom_query_addr(trans->shrd,
EEPROM_CALIB_ALL);
memcpy(&cmd.radio_sensor_offset_high, offset_calib_high,
sizeof(*offset_calib_high));
memcpy(&cmd.radio_sensor_offset_low, offset_calib_low,
sizeof(*offset_calib_low));
if (!(cmd.radio_sensor_offset_low)) {
IWL_DEBUG_CALIB(trans, "no info in EEPROM, use default\n");
cmd.radio_sensor_offset_low = DEFAULT_RADIO_SENSOR_OFFSET;
cmd.radio_sensor_offset_high = DEFAULT_RADIO_SENSOR_OFFSET;
}
memcpy(&cmd.burntVoltageRef, &hdr->voltage,
sizeof(hdr->voltage));
IWL_DEBUG_CALIB(trans, "Radio sensor offset high: %d\n",
le16_to_cpu(cmd.radio_sensor_offset_high));
IWL_DEBUG_CALIB(trans, "Radio sensor offset low: %d\n",
le16_to_cpu(cmd.radio_sensor_offset_low));
IWL_DEBUG_CALIB(trans, "Voltage Ref: %d\n",
le16_to_cpu(cmd.burntVoltageRef));
return iwl_calib_set(trans, (void *)&cmd, sizeof(cmd));
}
static int iwl_send_calib_cfg(struct iwl_trans *trans)
{
struct iwl_calib_cfg_cmd calib_cfg_cmd;
struct iwl_host_cmd cmd = {
.id = CALIBRATION_CFG_CMD,
.len = { sizeof(struct iwl_calib_cfg_cmd), },
.data = { &calib_cfg_cmd, },
};
memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL;
calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL;
calib_cfg_cmd.ucd_calib_cfg.flags =
IWL_CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_MSK;
return iwl_trans_send_cmd(trans, &cmd);
}
int iwlagn_rx_calib_result(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb,
struct iwl_device_cmd *cmd)
{
struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl_calib_hdr *hdr = (struct iwl_calib_hdr *)pkt->u.raw;
int len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
/* reduce the size of the length field itself */
len -= 4;
if (iwl_calib_set(trans(priv), hdr, len))
IWL_ERR(priv, "Failed to record calibration data %d\n",
hdr->op_code);
return 0;
}
int iwl_init_alive_start(struct iwl_trans *trans)
{
int ret;
if (cfg(trans)->bt_params &&
cfg(trans)->bt_params->advanced_bt_coexist) {
/*
* Tell uCode we are ready to perform calibration
* need to perform this before any calibration
* no need to close the envlope since we are going
* to load the runtime uCode later.
*/
ret = iwl_send_bt_env(trans, IWL_BT_COEX_ENV_OPEN,
BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
if (ret)
return ret;
}
ret = iwl_send_calib_cfg(trans);
if (ret)
return ret;
/**
* temperature offset calibration is only needed for runtime ucode,
* so prepare the value now.
*/
if (cfg(trans)->need_temp_offset_calib) {
if (cfg(trans)->temp_offset_v2)
return iwl_set_temperature_offset_calib_v2(trans);
else
return iwl_set_temperature_offset_calib(trans);
}
return 0;
}
static int iwl_send_wimax_coex(struct iwl_trans *trans)
{
struct iwl_wimax_coex_cmd coex_cmd;
if (cfg(trans)->base_params->support_wimax_coexist) {
/* UnMask wake up src at associated sleep */
coex_cmd.flags = COEX_FLAGS_ASSOC_WA_UNMASK_MSK;
/* UnMask wake up src at unassociated sleep */
coex_cmd.flags |= COEX_FLAGS_UNASSOC_WA_UNMASK_MSK;
memcpy(coex_cmd.sta_prio, cu_priorities,
sizeof(struct iwl_wimax_coex_event_entry) *
COEX_NUM_OF_EVENTS);
/* enabling the coexistence feature */
coex_cmd.flags |= COEX_FLAGS_COEX_ENABLE_MSK;
/* enabling the priorities tables */
coex_cmd.flags |= COEX_FLAGS_STA_TABLE_VALID_MSK;
} else {
/* coexistence is disabled */
memset(&coex_cmd, 0, sizeof(coex_cmd));
}
return iwl_trans_send_cmd_pdu(trans,
COEX_PRIORITY_TABLE_CMD, CMD_SYNC,
sizeof(coex_cmd), &coex_cmd);
}
static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
(1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
(1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
(1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
((BT_COEX_PRIO_TBL_PRIO_COEX_OFF << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
((BT_COEX_PRIO_TBL_PRIO_COEX_ON << IWL_BT_COEX_PRIO_TBL_PRIO_POS) |
(0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)),
0, 0, 0, 0, 0, 0, 0
};
void iwl_send_prio_tbl(struct iwl_trans *trans)
{
struct iwl_bt_coex_prio_table_cmd prio_tbl_cmd;
memcpy(prio_tbl_cmd.prio_tbl, iwl_bt_prio_tbl,
sizeof(iwl_bt_prio_tbl));
if (iwl_trans_send_cmd_pdu(trans,
REPLY_BT_COEX_PRIO_TABLE, CMD_SYNC,
sizeof(prio_tbl_cmd), &prio_tbl_cmd))
IWL_ERR(trans, "failed to send BT prio tbl command\n");
}
int iwl_send_bt_env(struct iwl_trans *trans, u8 action, u8 type)
{
struct iwl_bt_coex_prot_env_cmd env_cmd;
int ret;
env_cmd.action = action;
env_cmd.type = type;
ret = iwl_trans_send_cmd_pdu(trans,
REPLY_BT_COEX_PROT_ENV, CMD_SYNC,
sizeof(env_cmd), &env_cmd);
if (ret)
IWL_ERR(trans, "failed to send BT env command\n");
return ret;
}
static int iwl_alive_notify(struct iwl_trans *trans)
{
struct iwl_priv *priv = priv(trans);
struct iwl_rxon_context *ctx;
int ret;
if (!priv->tx_cmd_pool)
priv->tx_cmd_pool =
kmem_cache_create("iwl_dev_cmd",
sizeof(struct iwl_device_cmd),
sizeof(void *), 0, NULL);
if (!priv->tx_cmd_pool)
return -ENOMEM;
iwl_trans_fw_alive(trans);
for_each_context(priv, ctx)
ctx->last_tx_rejected = false;
ret = iwl_send_wimax_coex(trans);
if (ret)
return ret;
if (!cfg(priv)->no_xtal_calib) {
ret = iwl_set_Xtal_calib(trans);
if (ret)
return ret;
}
return iwl_send_calib_results(trans);
}
/**
* iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
* using sample data 100 bytes apart. If these sample points are good,
* it's a pretty good bet that everything between them is good, too.
*/
static int iwl_verify_inst_sparse(struct iwl_nic *nic,
struct fw_desc *fw_desc)
{
struct iwl_trans *trans = trans(nic);
__le32 *image = (__le32 *)fw_desc->v_addr;
u32 len = fw_desc->len;
u32 val;
u32 i;
IWL_DEBUG_FW(nic, "ucode inst image size is %u\n", len);
for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
/* read data comes through single port, auto-incr addr */
/* NOTE: Use the debugless read so we don't flood kernel log
* if IWL_DL_IO is set */
iwl_write_direct32(trans, HBUS_TARG_MEM_RADDR,
i + IWLAGN_RTC_INST_LOWER_BOUND);
val = iwl_read32(trans, HBUS_TARG_MEM_RDAT);
if (val != le32_to_cpu(*image))
return -EIO;
}
return 0;
}
static void iwl_print_mismatch_inst(struct iwl_nic *nic,
struct fw_desc *fw_desc)
{
struct iwl_trans *trans = trans(nic);
__le32 *image = (__le32 *)fw_desc->v_addr;
u32 len = fw_desc->len;
u32 val;
u32 offs;
int errors = 0;
IWL_DEBUG_FW(nic, "ucode inst image size is %u\n", len);
iwl_write_direct32(trans, HBUS_TARG_MEM_RADDR,
IWLAGN_RTC_INST_LOWER_BOUND);
for (offs = 0;
offs < len && errors < 20;
offs += sizeof(u32), image++) {
/* read data comes through single port, auto-incr addr */
val = iwl_read32(trans, HBUS_TARG_MEM_RDAT);
if (val != le32_to_cpu(*image)) {
IWL_ERR(nic, "uCode INST section at "
"offset 0x%x, is 0x%x, s/b 0x%x\n",
offs, val, le32_to_cpu(*image));
errors++;
}
}
}
/**
* iwl_verify_ucode - determine which instruction image is in SRAM,
* and verify its contents
*/
static int iwl_verify_ucode(struct iwl_nic *nic,
enum iwl_ucode_type ucode_type)
{
struct fw_img *img = iwl_get_ucode_image(nic, ucode_type);
if (!img) {
IWL_ERR(nic, "Invalid ucode requested (%d)\n", ucode_type);
return -EINVAL;
}
if (!iwl_verify_inst_sparse(nic, &img->code)) {
IWL_DEBUG_FW(nic, "uCode is good in inst SRAM\n");
return 0;
}
IWL_ERR(nic, "UCODE IMAGE IN INSTRUCTION SRAM NOT VALID!!\n");
iwl_print_mismatch_inst(nic, &img->code);
return -EIO;
}
struct iwl_alive_data {
bool valid;
u8 subtype;
};
static void iwl_alive_fn(struct iwl_trans *trans,
struct iwl_rx_packet *pkt,
void *data)
{
struct iwl_alive_data *alive_data = data;
struct iwl_alive_resp *palive;
palive = &pkt->u.alive_frame;
IWL_DEBUG_FW(trans, "Alive ucode status 0x%08X revision "
"0x%01X 0x%01X\n",
palive->is_valid, palive->ver_type,
palive->ver_subtype);
trans->shrd->device_pointers.error_event_table =
le32_to_cpu(palive->error_event_table_ptr);
trans->shrd->device_pointers.log_event_table =
le32_to_cpu(palive->log_event_table_ptr);
alive_data->subtype = palive->ver_subtype;
alive_data->valid = palive->is_valid == UCODE_VALID_OK;
}
/* notification wait support */
void iwl_init_notification_wait(struct iwl_shared *shrd,
struct iwl_notification_wait *wait_entry,
u8 cmd,
void (*fn)(struct iwl_trans *trans,
struct iwl_rx_packet *pkt,
void *data),
void *fn_data)
{
wait_entry->fn = fn;
wait_entry->fn_data = fn_data;
wait_entry->cmd = cmd;
wait_entry->triggered = false;
wait_entry->aborted = false;
spin_lock_bh(&shrd->notif_wait_lock);
list_add(&wait_entry->list, &shrd->notif_waits);
spin_unlock_bh(&shrd->notif_wait_lock);
}
int iwl_wait_notification(struct iwl_shared *shrd,
struct iwl_notification_wait *wait_entry,
unsigned long timeout)
{
int ret;
ret = wait_event_timeout(shrd->notif_waitq,
wait_entry->triggered || wait_entry->aborted,
timeout);
spin_lock_bh(&shrd->notif_wait_lock);
list_del(&wait_entry->list);
spin_unlock_bh(&shrd->notif_wait_lock);
if (wait_entry->aborted)
return -EIO;
/* return value is always >= 0 */
if (ret <= 0)
return -ETIMEDOUT;
return 0;
}
void iwl_remove_notification(struct iwl_shared *shrd,
struct iwl_notification_wait *wait_entry)
{
spin_lock_bh(&shrd->notif_wait_lock);
list_del(&wait_entry->list);
spin_unlock_bh(&shrd->notif_wait_lock);
}
void iwl_abort_notification_waits(struct iwl_shared *shrd)
{
unsigned long flags;
struct iwl_notification_wait *wait_entry;
spin_lock_irqsave(&shrd->notif_wait_lock, flags);
list_for_each_entry(wait_entry, &shrd->notif_waits, list)
wait_entry->aborted = true;
spin_unlock_irqrestore(&shrd->notif_wait_lock, flags);
wake_up_all(&shrd->notif_waitq);
}
#define UCODE_ALIVE_TIMEOUT HZ
#define UCODE_CALIB_TIMEOUT (2*HZ)
int iwl_load_ucode_wait_alive(struct iwl_trans *trans,
enum iwl_ucode_type ucode_type)
{
struct iwl_notification_wait alive_wait;
struct iwl_alive_data alive_data;
struct fw_img *fw;
int ret;
enum iwl_ucode_type old_type;
iwl_init_notification_wait(trans->shrd, &alive_wait, REPLY_ALIVE,
iwl_alive_fn, &alive_data);
old_type = trans->shrd->ucode_type;
trans->shrd->ucode_type = ucode_type;
fw = iwl_get_ucode_image(nic(trans), ucode_type);
if (!fw)
return -EINVAL;
ret = iwl_trans_start_fw(trans, fw);
if (ret) {
trans->shrd->ucode_type = old_type;
iwl_remove_notification(trans->shrd, &alive_wait);
return ret;
}
/*
* Some things may run in the background now, but we
* just wait for the ALIVE notification here.
*/
ret = iwl_wait_notification(trans->shrd, &alive_wait,
UCODE_ALIVE_TIMEOUT);
if (ret) {
trans->shrd->ucode_type = old_type;
return ret;
}
if (!alive_data.valid) {
IWL_ERR(trans, "Loaded ucode is not valid!\n");
trans->shrd->ucode_type = old_type;
return -EIO;
}
/*
* This step takes a long time (60-80ms!!) and
* WoWLAN image should be loaded quickly, so
* skip it for WoWLAN.
*/
if (ucode_type != IWL_UCODE_WOWLAN) {
ret = iwl_verify_ucode(nic(trans), ucode_type);
if (ret) {
trans->shrd->ucode_type = old_type;
return ret;
}
/* delay a bit to give rfkill time to run */
msleep(5);
}
ret = iwl_alive_notify(trans);
if (ret) {
IWL_WARN(trans,
"Could not complete ALIVE transition: %d\n", ret);
trans->shrd->ucode_type = old_type;
return ret;
}
return 0;
}
int iwl_run_init_ucode(struct iwl_trans *trans)
{
struct iwl_notification_wait calib_wait;
int ret;
lockdep_assert_held(&trans->shrd->mutex);
/* No init ucode required? Curious, but maybe ok */
if (!nic(trans)->fw.ucode_init.code.len)
return 0;
if (trans->shrd->ucode_type != IWL_UCODE_NONE)
return 0;
iwl_init_notification_wait(trans->shrd, &calib_wait,
CALIBRATION_COMPLETE_NOTIFICATION,
NULL, NULL);
/* Will also start the device */
ret = iwl_load_ucode_wait_alive(trans, IWL_UCODE_INIT);
if (ret)
goto error;
ret = iwl_init_alive_start(trans);
if (ret)
goto error;
/*
* Some things may run in the background now, but we
* just wait for the calibration complete notification.
*/
ret = iwl_wait_notification(trans->shrd, &calib_wait,
UCODE_CALIB_TIMEOUT);
goto out;
error:
iwl_remove_notification(trans->shrd, &calib_wait);
out:
/* Whatever happened, stop the device */
iwl_trans_stop_device(trans);
return ret;
}
static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context);
#define UCODE_EXPERIMENTAL_TAG "exp"
int __must_check iwl_request_firmware(struct iwl_nic *nic, bool first)
{
struct iwl_cfg *cfg = cfg(nic);
const char *name_pre = cfg->fw_name_pre;
char tag[8];
if (first) {
#ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
nic->fw_index = UCODE_EXPERIMENTAL_INDEX;
strcpy(tag, UCODE_EXPERIMENTAL_TAG);
} else if (nic->fw_index == UCODE_EXPERIMENTAL_INDEX) {
#endif
nic->fw_index = cfg->ucode_api_max;
sprintf(tag, "%d", nic->fw_index);
} else {
nic->fw_index--;
sprintf(tag, "%d", nic->fw_index);
}
if (nic->fw_index < cfg->ucode_api_min) {
IWL_ERR(nic, "no suitable firmware found!\n");
return -ENOENT;
}
sprintf(nic->firmware_name, "%s%s%s", name_pre, tag, ".ucode");
IWL_DEBUG_INFO(nic, "attempting to load firmware %s'%s'\n",
(nic->fw_index == UCODE_EXPERIMENTAL_INDEX)
? "EXPERIMENTAL " : "",
nic->firmware_name);
return request_firmware_nowait(THIS_MODULE, 1, nic->firmware_name,
trans(nic)->dev,
GFP_KERNEL, nic, iwl_ucode_callback);
}
struct iwlagn_firmware_pieces {
const void *inst, *data, *init, *init_data, *wowlan_inst, *wowlan_data;
size_t inst_size, data_size, init_size, init_data_size,
wowlan_inst_size, wowlan_data_size;
u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
};
static int iwl_parse_v1_v2_firmware(struct iwl_nic *nic,
const struct firmware *ucode_raw,
struct iwlagn_firmware_pieces *pieces)
{
struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
u32 api_ver, hdr_size, build;
char buildstr[25];
const u8 *src;
nic->fw.ucode_ver = le32_to_cpu(ucode->ver);
api_ver = IWL_UCODE_API(nic->fw.ucode_ver);
switch (api_ver) {
default:
hdr_size = 28;
if (ucode_raw->size < hdr_size) {
IWL_ERR(nic, "File size too small!\n");
return -EINVAL;
}
build = le32_to_cpu(ucode->u.v2.build);
pieces->inst_size = le32_to_cpu(ucode->u.v2.inst_size);
pieces->data_size = le32_to_cpu(ucode->u.v2.data_size);
pieces->init_size = le32_to_cpu(ucode->u.v2.init_size);
pieces->init_data_size = 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(nic, "File size too small!\n");
return -EINVAL;
}
build = 0;
pieces->inst_size = le32_to_cpu(ucode->u.v1.inst_size);
pieces->data_size = le32_to_cpu(ucode->u.v1.data_size);
pieces->init_size = le32_to_cpu(ucode->u.v1.init_size);
pieces->init_data_size = le32_to_cpu(ucode->u.v1.init_data_size);
src = ucode->u.v1.data;
break;
}
if (build)
sprintf(buildstr, " build %u%s", build,
(nic->fw_index == UCODE_EXPERIMENTAL_INDEX)
? " (EXP)" : "");
else
buildstr[0] = '\0';
snprintf(nic->fw.fw_version,
sizeof(nic->fw.fw_version),
"%u.%u.%u.%u%s",
IWL_UCODE_MAJOR(nic->fw.ucode_ver),
IWL_UCODE_MINOR(nic->fw.ucode_ver),
IWL_UCODE_API(nic->fw.ucode_ver),
IWL_UCODE_SERIAL(nic->fw.ucode_ver),
buildstr);
/* Verify size of file vs. image size info in file's header */
if (ucode_raw->size != hdr_size + pieces->inst_size +
pieces->data_size + pieces->init_size +
pieces->init_data_size) {
IWL_ERR(nic,
"uCode file size %d does not match expected size\n",
(int)ucode_raw->size);
return -EINVAL;
}
pieces->inst = src;
src += pieces->inst_size;
pieces->data = src;
src += pieces->data_size;
pieces->init = src;
src += pieces->init_size;
pieces->init_data = src;
src += pieces->init_data_size;
return 0;
}
static int iwl_parse_tlv_firmware(struct iwl_nic *nic,
const struct firmware *ucode_raw,
struct iwlagn_firmware_pieces *pieces,
struct iwl_ucode_capabilities *capa)
{
struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
struct iwl_ucode_tlv *tlv;
size_t len = ucode_raw->size;
const u8 *data;
int wanted_alternative = iwlagn_mod_params.wanted_ucode_alternative;
int tmp;
u64 alternatives;
u32 tlv_len;
enum iwl_ucode_tlv_type tlv_type;
const u8 *tlv_data;
char buildstr[25];
u32 build;
if (len < sizeof(*ucode)) {
IWL_ERR(nic, "uCode has invalid length: %zd\n", len);
return -EINVAL;
}
if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
IWL_ERR(nic, "invalid uCode magic: 0X%x\n",
le32_to_cpu(ucode->magic));
return -EINVAL;
}
/*
* Check which alternatives are present, and "downgrade"
* when the chosen alternative is not present, warning
* the user when that happens. Some files may not have
* any alternatives, so don't warn in that case.
*/
alternatives = le64_to_cpu(ucode->alternatives);
tmp = wanted_alternative;
if (wanted_alternative > 63)
wanted_alternative = 63;
while (wanted_alternative && !(alternatives & BIT(wanted_alternative)))
wanted_alternative--;
if (wanted_alternative && wanted_alternative != tmp)
IWL_WARN(nic,
"uCode alternative %d not available, choosing %d\n",
tmp, wanted_alternative);
nic->fw.ucode_ver = le32_to_cpu(ucode->ver);
build = le32_to_cpu(ucode->build);
if (build)
sprintf(buildstr, " build %u%s", build,
(nic->fw_index == UCODE_EXPERIMENTAL_INDEX)
? " (EXP)" : "");
else
buildstr[0] = '\0';
snprintf(nic->fw.fw_version,
sizeof(nic->fw.fw_version),
"%u.%u.%u.%u%s",
IWL_UCODE_MAJOR(nic->fw.ucode_ver),
IWL_UCODE_MINOR(nic->fw.ucode_ver),
IWL_UCODE_API(nic->fw.ucode_ver),
IWL_UCODE_SERIAL(nic->fw.ucode_ver),
buildstr);
data = ucode->data;
len -= sizeof(*ucode);
while (len >= sizeof(*tlv)) {
u16 tlv_alt;
len -= sizeof(*tlv);
tlv = (void *)data;
tlv_len = le32_to_cpu(tlv->length);
tlv_type = le16_to_cpu(tlv->type);
tlv_alt = le16_to_cpu(tlv->alternative);
tlv_data = tlv->data;
if (len < tlv_len) {
IWL_ERR(nic, "invalid TLV len: %zd/%u\n",
len, tlv_len);
return -EINVAL;
}
len -= ALIGN(tlv_len, 4);
data += sizeof(*tlv) + ALIGN(tlv_len, 4);
/*
* Alternative 0 is always valid.
*
* Skip alternative TLVs that are not selected.
*/
if (tlv_alt != 0 && tlv_alt != wanted_alternative)
continue;
switch (tlv_type) {
case IWL_UCODE_TLV_INST:
pieces->inst = tlv_data;
pieces->inst_size = tlv_len;
break;
case IWL_UCODE_TLV_DATA:
pieces->data = tlv_data;
pieces->data_size = tlv_len;
break;
case IWL_UCODE_TLV_INIT:
pieces->init = tlv_data;
pieces->init_size = tlv_len;
break;
case IWL_UCODE_TLV_INIT_DATA:
pieces->init_data = tlv_data;
pieces->init_data_size = tlv_len;
break;
case IWL_UCODE_TLV_BOOT:
IWL_ERR(nic, "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_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;
nic->fw.enhance_sensitivity_table = true;
break;
case IWL_UCODE_TLV_WOWLAN_INST:
pieces->wowlan_inst = tlv_data;
pieces->wowlan_inst_size = tlv_len;
break;
case IWL_UCODE_TLV_WOWLAN_DATA:
pieces->wowlan_data = tlv_data;
pieces->wowlan_data_size = tlv_len;
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;
default:
IWL_DEBUG_INFO(nic, "unknown TLV: %d\n", tlv_type);
break;
}
}
if (len) {
IWL_ERR(nic, "invalid TLV after parsing: %zd\n", len);
iwl_print_hex_dump(nic, IWL_DL_FW, (u8 *)data, len);
return -EINVAL;
}
return 0;
invalid_tlv_len:
IWL_ERR(nic, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
iwl_print_hex_dump(nic, IWL_DL_FW, tlv_data, tlv_len);
return -EINVAL;
}
/**
* iwl_ucode_callback - callback when firmware was loaded
*
* If loaded successfully, copies the firmware into buffers
* for the card to fetch (via DMA).
*/
static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
{
struct iwl_nic *nic = context;
struct iwl_cfg *cfg = cfg(nic);
struct iwl_fw *fw = &nic->fw;
struct iwl_ucode_header *ucode;
int err;
struct iwlagn_firmware_pieces pieces;
const unsigned int api_max = cfg->ucode_api_max;
unsigned int api_ok = cfg->ucode_api_ok;
const unsigned int api_min = cfg->ucode_api_min;
u32 api_ver;
fw->ucode_capa.max_probe_length = 200;
fw->ucode_capa.standard_phy_calibration_size =
IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
if (!api_ok)
api_ok = api_max;
memset(&pieces, 0, sizeof(pieces));
if (!ucode_raw) {
if (nic->fw_index <= api_ok)
IWL_ERR(nic,
"request for firmware file '%s' failed.\n",
nic->firmware_name);
goto try_again;
}
IWL_DEBUG_INFO(nic, "Loaded firmware file '%s' (%zd bytes).\n",
nic->firmware_name, ucode_raw->size);
/* Make sure that we got at least the API version number */
if (ucode_raw->size < 4) {
IWL_ERR(nic, "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(nic, ucode_raw, &pieces);
else
err = iwl_parse_tlv_firmware(nic, ucode_raw, &pieces,
&fw->ucode_capa);
if (err)
goto try_again;
api_ver = IWL_UCODE_API(nic->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
*/
/* no api version check required for experimental uCode */
if (nic->fw_index != UCODE_EXPERIMENTAL_INDEX) {
if (api_ver < api_min || api_ver > api_max) {
IWL_ERR(nic,
"Driver unable to support your firmware API. "
"Driver supports v%u, firmware is v%u.\n",
api_max, api_ver);
goto try_again;
}
if (api_ver < api_ok) {
if (api_ok != api_max)
IWL_ERR(nic, "Firmware has old API version, "
"expected v%u through v%u, got v%u.\n",
api_ok, api_max, api_ver);
else
IWL_ERR(nic, "Firmware has old API version, "
"expected v%u, got v%u.\n",
api_max, api_ver);
IWL_ERR(nic, "New firmware can be obtained from "
"http://www.intellinuxwireless.org/.\n");
}
}
IWL_INFO(nic, "loaded firmware version %s", nic->fw.fw_version);
/*
* For any of the failures below (before allocating pci memory)
* we will try to load a version with a smaller API -- maybe the
* user just got a corrupted version of the latest API.
*/
IWL_DEBUG_INFO(nic, "f/w package hdr ucode version raw = 0x%x\n",
nic->fw.ucode_ver);
IWL_DEBUG_INFO(nic, "f/w package hdr runtime inst size = %Zd\n",
pieces.inst_size);
IWL_DEBUG_INFO(nic, "f/w package hdr runtime data size = %Zd\n",
pieces.data_size);
IWL_DEBUG_INFO(nic, "f/w package hdr init inst size = %Zd\n",
pieces.init_size);
IWL_DEBUG_INFO(nic, "f/w package hdr init data size = %Zd\n",
pieces.init_data_size);
/* Verify that uCode images will fit in card's SRAM */
if (pieces.inst_size > cfg->max_inst_size) {
IWL_ERR(nic, "uCode instr len %Zd too large to fit in\n",
pieces.inst_size);
goto try_again;
}
if (pieces.data_size > cfg->max_data_size) {
IWL_ERR(nic, "uCode data len %Zd too large to fit in\n",
pieces.data_size);
goto try_again;
}
if (pieces.init_size > cfg->max_inst_size) {
IWL_ERR(nic, "uCode init instr len %Zd too large to fit in\n",
pieces.init_size);
goto try_again;
}
if (pieces.init_data_size > cfg->max_data_size) {
IWL_ERR(nic, "uCode init data len %Zd too large to fit in\n",
pieces.init_data_size);
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 */
if (iwl_alloc_fw_desc(nic, &nic->fw.ucode_rt.code,
pieces.inst, pieces.inst_size))
goto err_pci_alloc;
if (iwl_alloc_fw_desc(nic, &nic->fw.ucode_rt.data,
pieces.data, pieces.data_size))
goto err_pci_alloc;
/* Initialization instructions and data */
if (pieces.init_size && pieces.init_data_size) {
if (iwl_alloc_fw_desc(nic,
&nic->fw.ucode_init.code,
pieces.init, pieces.init_size))
goto err_pci_alloc;
if (iwl_alloc_fw_desc(nic,
&nic->fw.ucode_init.data,
pieces.init_data, pieces.init_data_size))
goto err_pci_alloc;
}
/* WoWLAN instructions and data */
if (pieces.wowlan_inst_size && pieces.wowlan_data_size) {
if (iwl_alloc_fw_desc(nic,
&nic->fw.ucode_wowlan.code,
pieces.wowlan_inst,
pieces.wowlan_inst_size))
goto err_pci_alloc;
if (iwl_alloc_fw_desc(nic,
&nic->fw.ucode_wowlan.data,
pieces.wowlan_data,
pieces.wowlan_data_size))
goto err_pci_alloc;
}
/* Now that we can no longer fail, copy information */
/*
* 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.
*/
nic->init_evtlog_ptr = pieces.init_evtlog_ptr;
if (pieces.init_evtlog_size)
nic->init_evtlog_size = (pieces.init_evtlog_size - 16)/12;
else
nic->init_evtlog_size =
cfg->base_params->max_event_log_size;
nic->init_errlog_ptr = pieces.init_errlog_ptr;
nic->inst_evtlog_ptr = pieces.inst_evtlog_ptr;
if (pieces.inst_evtlog_size)
nic->inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12;
else
nic->inst_evtlog_size =
cfg->base_params->max_event_log_size;
nic->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);
complete(&nic->request_firmware_complete);
nic->op_mode = iwl_dvm_ops.start(nic->shrd->trans);
if (!nic->op_mode)
goto out_unbind;
return;
try_again:
/* try next, if any */
release_firmware(ucode_raw);
if (iwl_request_firmware(nic, false))
goto out_unbind;
return;
err_pci_alloc:
IWL_ERR(nic, "failed to allocate pci memory\n");
iwl_dealloc_ucode(nic);
release_firmware(ucode_raw);
out_unbind:
complete(&nic->request_firmware_complete);
device_release_driver(trans(nic)->dev);
}
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