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Merge tag 'iwlwifi-for-kalle-2016-02-15' into HEAD 

These are a few fixes for the current cycle.
3 out of the 5 patches fix a bugzilla.

* fix a race that users reported when we try to load the firmware
  and the hardware rfkill interrupt triggers at the same time.
* Luca fixes a very visible bug in scheduled scan: our firmware
  doesn't support scheduled scan with no profile configured and
  the supplicant sometimes requests such scheduled scans.
* build system fix
* firmware name update for 8265
* typo fix in return value
This commit is contained in:
Emmanuel Grumbach 2016-02-25 10:59:41 +02:00
Родитель dd4d3161d0 20aa99bbdd
Коммит 3cce9bb07b
12 изменённых файлов: 243 добавлений и 127 удалений
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1
drivers/net/wireless/intel/iwlwifi/Kconfig
Просмотреть файл

@ -53,7 +53,6 @@ config IWLWIFI_LEDS
config IWLDVM
tristate "Intel Wireless WiFi DVM Firmware support"
depends on m
help
This is the driver that supports the DVM firmware. The list
of the devices that use this firmware is available here:

23
drivers/net/wireless/intel/iwlwifi/iwl-7000.c
Просмотреть файл

@ -74,16 +74,19 @@
#define IWL7260_UCODE_API_MAX 17
#define IWL7265_UCODE_API_MAX 17
#define IWL7265D_UCODE_API_MAX 20
#define IWL3168_UCODE_API_MAX 20
/* Oldest version we won't warn about */
#define IWL7260_UCODE_API_OK 13
#define IWL7265_UCODE_API_OK 13
#define IWL7265D_UCODE_API_OK 13
#define IWL3168_UCODE_API_OK 20
/* Lowest firmware API version supported */
#define IWL7260_UCODE_API_MIN 13
#define IWL7265_UCODE_API_MIN 13
#define IWL7265D_UCODE_API_MIN 13
#define IWL3168_UCODE_API_MIN 20
/* NVM versions */
#define IWL7260_NVM_VERSION 0x0a1d
@ -92,6 +95,8 @@
#define IWL3160_TX_POWER_VERSION 0xffff /* meaningless */
#define IWL3165_NVM_VERSION 0x709
#define IWL3165_TX_POWER_VERSION 0xffff /* meaningless */
#define IWL3168_NVM_VERSION 0xd01
#define IWL3168_TX_POWER_VERSION 0xffff /* meaningless */
#define IWL7265_NVM_VERSION 0x0a1d
#define IWL7265_TX_POWER_VERSION 0xffff /* meaningless */
#define IWL7265D_NVM_VERSION 0x0c11
@ -109,6 +114,9 @@
#define IWL3160_FW_PRE "iwlwifi-3160-"
#define IWL3160_MODULE_FIRMWARE(api) IWL3160_FW_PRE __stringify(api) ".ucode"
#define IWL3168_FW_PRE "iwlwifi-3168-"
#define IWL3168_MODULE_FIRMWARE(api) IWL3168_FW_PRE __stringify(api) ".ucode"
#define IWL7265_FW_PRE "iwlwifi-7265-"
#define IWL7265_MODULE_FIRMWARE(api) IWL7265_FW_PRE __stringify(api) ".ucode"
@ -180,6 +188,12 @@ static const struct iwl_ht_params iwl7000_ht_params = {
.ucode_api_ok = IWL7265_UCODE_API_OK, \
.ucode_api_min = IWL7265_UCODE_API_MIN
#define IWL_DEVICE_3008 \
IWL_DEVICE_7000_COMMON, \
.ucode_api_max = IWL3168_UCODE_API_MAX, \
.ucode_api_ok = IWL3168_UCODE_API_OK, \
.ucode_api_min = IWL3168_UCODE_API_MIN
#define IWL_DEVICE_7005D \
IWL_DEVICE_7000_COMMON, \
.ucode_api_max = IWL7265D_UCODE_API_MAX, \
@ -299,11 +313,11 @@ const struct iwl_cfg iwl3165_2ac_cfg = {
const struct iwl_cfg iwl3168_2ac_cfg = {
.name = "Intel(R) Dual Band Wireless AC 3168",
.fw_name_pre = IWL7265D_FW_PRE,
IWL_DEVICE_7000,
.fw_name_pre = IWL3168_FW_PRE,
IWL_DEVICE_3008,
.ht_params = &iwl7000_ht_params,
.nvm_ver = IWL3165_NVM_VERSION,
.nvm_calib_ver = IWL3165_TX_POWER_VERSION,
.nvm_ver = IWL3168_NVM_VERSION,
.nvm_calib_ver = IWL3168_TX_POWER_VERSION,
.pwr_tx_backoffs = iwl7265_pwr_tx_backoffs,
.dccm_len = IWL7265_DCCM_LEN,
};
@ -376,5 +390,6 @@ const struct iwl_cfg iwl7265d_n_cfg = {
MODULE_FIRMWARE(IWL7260_MODULE_FIRMWARE(IWL7260_UCODE_API_OK));
MODULE_FIRMWARE(IWL3160_MODULE_FIRMWARE(IWL7260_UCODE_API_OK));
MODULE_FIRMWARE(IWL3168_MODULE_FIRMWARE(IWL3168_UCODE_API_OK));
MODULE_FIRMWARE(IWL7265_MODULE_FIRMWARE(IWL7265_UCODE_API_OK));
MODULE_FIRMWARE(IWL7265D_MODULE_FIRMWARE(IWL7265D_UCODE_API_OK));

42
drivers/net/wireless/intel/iwlwifi/iwl-8000.c
Просмотреть файл

@ -7,6 +7,7 @@
*
* Copyright(c) 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2014 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 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
@ -70,12 +71,15 @@
/* Highest firmware API version supported */
#define IWL8000_UCODE_API_MAX 20
#define IWL8265_UCODE_API_MAX 20
/* Oldest version we won't warn about */
#define IWL8000_UCODE_API_OK 13
#define IWL8265_UCODE_API_OK 20
/* Lowest firmware API version supported */
#define IWL8000_UCODE_API_MIN 13
#define IWL8265_UCODE_API_MIN 20
/* NVM versions */
#define IWL8000_NVM_VERSION 0x0a1d
@ -93,6 +97,10 @@
#define IWL8000_MODULE_FIRMWARE(api) \
IWL8000_FW_PRE "-" __stringify(api) ".ucode"
#define IWL8265_FW_PRE "iwlwifi-8265-"
#define IWL8265_MODULE_FIRMWARE(api) \
IWL8265_FW_PRE __stringify(api) ".ucode"
#define NVM_HW_SECTION_NUM_FAMILY_8000 10
#define DEFAULT_NVM_FILE_FAMILY_8000B "nvmData-8000B"
#define DEFAULT_NVM_FILE_FAMILY_8000C "nvmData-8000C"
@ -144,10 +152,7 @@ static const struct iwl_tt_params iwl8000_tt_params = {
.support_tx_backoff = true,
};
#define IWL_DEVICE_8000 \
.ucode_api_max = IWL8000_UCODE_API_MAX, \
.ucode_api_ok = IWL8000_UCODE_API_OK, \
.ucode_api_min = IWL8000_UCODE_API_MIN, \
#define IWL_DEVICE_8000_COMMON \
.device_family = IWL_DEVICE_FAMILY_8000, \
.max_inst_size = IWL60_RTC_INST_SIZE, \
.max_data_size = IWL60_RTC_DATA_SIZE, \
@ -167,10 +172,28 @@ static const struct iwl_tt_params iwl8000_tt_params = {
.thermal_params = &iwl8000_tt_params, \
.apmg_not_supported = true
#define IWL_DEVICE_8000 \
IWL_DEVICE_8000_COMMON, \
.ucode_api_max = IWL8000_UCODE_API_MAX, \
.ucode_api_ok = IWL8000_UCODE_API_OK, \
.ucode_api_min = IWL8000_UCODE_API_MIN \
#define IWL_DEVICE_8260 \
IWL_DEVICE_8000_COMMON, \
.ucode_api_max = IWL8000_UCODE_API_MAX, \
.ucode_api_ok = IWL8000_UCODE_API_OK, \
.ucode_api_min = IWL8000_UCODE_API_MIN \
#define IWL_DEVICE_8265 \
IWL_DEVICE_8000_COMMON, \
.ucode_api_max = IWL8265_UCODE_API_MAX, \
.ucode_api_ok = IWL8265_UCODE_API_OK, \
.ucode_api_min = IWL8265_UCODE_API_MIN \
const struct iwl_cfg iwl8260_2n_cfg = {
.name = "Intel(R) Dual Band Wireless N 8260",
.fw_name_pre = IWL8000_FW_PRE,
IWL_DEVICE_8000,
IWL_DEVICE_8260,
.ht_params = &iwl8000_ht_params,
.nvm_ver = IWL8000_NVM_VERSION,
.nvm_calib_ver = IWL8000_TX_POWER_VERSION,
@ -179,7 +202,7 @@ const struct iwl_cfg iwl8260_2n_cfg = {
const struct iwl_cfg iwl8260_2ac_cfg = {
.name = "Intel(R) Dual Band Wireless AC 8260",
.fw_name_pre = IWL8000_FW_PRE,
IWL_DEVICE_8000,
IWL_DEVICE_8260,
.ht_params = &iwl8000_ht_params,
.nvm_ver = IWL8000_NVM_VERSION,
.nvm_calib_ver = IWL8000_TX_POWER_VERSION,
@ -188,8 +211,8 @@ const struct iwl_cfg iwl8260_2ac_cfg = {
const struct iwl_cfg iwl8265_2ac_cfg = {
.name = "Intel(R) Dual Band Wireless AC 8265",
.fw_name_pre = IWL8000_FW_PRE,
IWL_DEVICE_8000,
.fw_name_pre = IWL8265_FW_PRE,
IWL_DEVICE_8265,
.ht_params = &iwl8000_ht_params,
.nvm_ver = IWL8000_NVM_VERSION,
.nvm_calib_ver = IWL8000_TX_POWER_VERSION,
@ -209,7 +232,7 @@ const struct iwl_cfg iwl4165_2ac_cfg = {
const struct iwl_cfg iwl8260_2ac_sdio_cfg = {
.name = "Intel(R) Dual Band Wireless-AC 8260",
.fw_name_pre = IWL8000_FW_PRE,
IWL_DEVICE_8000,
IWL_DEVICE_8260,
.ht_params = &iwl8000_ht_params,
.nvm_ver = IWL8000_NVM_VERSION,
.nvm_calib_ver = IWL8000_TX_POWER_VERSION,
@ -236,3 +259,4 @@ const struct iwl_cfg iwl4165_2ac_sdio_cfg = {
};
MODULE_FIRMWARE(IWL8000_MODULE_FIRMWARE(IWL8000_UCODE_API_OK));
MODULE_FIRMWARE(IWL8265_MODULE_FIRMWARE(IWL8265_UCODE_API_OK));

6
drivers/net/wireless/intel/iwlwifi/iwl-drv.c
Просмотреть файл

@ -243,8 +243,10 @@ static int iwl_request_firmware(struct iwl_drv *drv, bool first)
if (drv->trans->cfg->device_family == IWL_DEVICE_FAMILY_8000) {
char rev_step = 'A' + CSR_HW_REV_STEP(drv->trans->hw_rev);
snprintf(drv->firmware_name, sizeof(drv->firmware_name),
"%s%c-%s.ucode", name_pre, rev_step, tag);
if (rev_step != 'A')
snprintf(drv->firmware_name,
sizeof(drv->firmware_name), "%s%c-%s.ucode",
name_pre, rev_step, tag);
}
IWL_DEBUG_INFO(drv, "attempting to load firmware %s'%s'\n",

6
drivers/net/wireless/intel/iwlwifi/mvm/fw-api-tx.h
Просмотреть файл

@ -510,6 +510,9 @@ struct iwl_mvm_tx_resp {
* @scd_ssn: the index of the last contiguously sent packet
* @txed: number of Txed frames in this batch
* @txed_2_done: number of Acked frames in this batch
* @reduced_txp: power reduced according to TPC. This is the actual value and
* not a copy from the LQ command. Thus, if not the first rate was used
* for Tx-ing then this value will be set to 0 by FW.
*/
struct iwl_mvm_ba_notif {
__le32 sta_addr_lo32;
@ -524,7 +527,8 @@ struct iwl_mvm_ba_notif {
__le16 scd_ssn;
u8 txed;
u8 txed_2_done;
__le16 reserved1;
u8 reduced_txp;
u8 reserved1;
} __packed;
/*

74
drivers/net/wireless/intel/iwlwifi/mvm/rs.c
Просмотреть файл

@ -2,6 +2,7 @@
*
* Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 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
@ -724,14 +725,28 @@ static int _rs_collect_tx_data(struct iwl_mvm *mvm,
return 0;
}
static int rs_collect_tx_data(struct iwl_mvm *mvm,
struct iwl_lq_sta *lq_sta,
struct iwl_scale_tbl_info *tbl,
int scale_index, int attempts, int successes,
u8 reduced_txp)
static int rs_collect_tpc_data(struct iwl_mvm *mvm,
struct iwl_lq_sta *lq_sta,
struct iwl_scale_tbl_info *tbl,
int scale_index, int attempts, int successes,
u8 reduced_txp)
{
struct iwl_rate_scale_data *window = NULL;
if (WARN_ON_ONCE(reduced_txp > TPC_MAX_REDUCTION))
return -EINVAL;
window = &tbl->tpc_win[reduced_txp];
return _rs_collect_tx_data(mvm, tbl, scale_index, attempts, successes,
window);
}
static int rs_collect_tlc_data(struct iwl_mvm *mvm,
struct iwl_lq_sta *lq_sta,
struct iwl_scale_tbl_info *tbl,
int scale_index, int attempts, int successes)
{
struct iwl_rate_scale_data *window = NULL;
int ret;
if (scale_index < 0 || scale_index >= IWL_RATE_COUNT)
return -EINVAL;
@ -745,16 +760,6 @@ static int rs_collect_tx_data(struct iwl_mvm *mvm,
/* Select window for current tx bit rate */
window = &(tbl->win[scale_index]);
ret = _rs_collect_tx_data(mvm, tbl, scale_index, attempts, successes,
window);
if (ret)
return ret;
if (WARN_ON_ONCE(reduced_txp > TPC_MAX_REDUCTION))
return -EINVAL;
window = &tbl->tpc_win[reduced_txp];
return _rs_collect_tx_data(mvm, tbl, scale_index, attempts, successes,
window);
}
@ -1301,17 +1306,30 @@ void iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
* first index into rate scale table.
*/
if (info->flags & IEEE80211_TX_STAT_AMPDU) {
/* ampdu_ack_len = 0 marks no BA was received. In this case
* treat it as a single frame loss as we don't want the success
* ratio to dip too quickly because a BA wasn't received
rs_collect_tpc_data(mvm, lq_sta, curr_tbl, lq_rate.index,
info->status.ampdu_len,
info->status.ampdu_ack_len,
reduced_txp);
/* ampdu_ack_len = 0 marks no BA was received. For TLC, treat
* it as a single frame loss as we don't want the success ratio
* to dip too quickly because a BA wasn't received.
* For TPC, there's no need for this optimisation since we want
* to recover very quickly from a bad power reduction and,
* therefore we'd like the success ratio to get an immediate hit
* when failing to get a BA, so we'd switch back to a lower or
* zero power reduction. When FW transmits agg with a rate
* different from the initial rate, it will not use reduced txp
* and will send BA notification twice (one empty with reduced
* txp equal to the value from LQ and one with reduced txp 0).
* We need to update counters for each txp level accordingly.
*/
if (info->status.ampdu_ack_len == 0)
info->status.ampdu_len = 1;
rs_collect_tx_data(mvm, lq_sta, curr_tbl, lq_rate.index,
info->status.ampdu_len,
info->status.ampdu_ack_len,
reduced_txp);
rs_collect_tlc_data(mvm, lq_sta, curr_tbl, lq_rate.index,
info->status.ampdu_len,
info->status.ampdu_ack_len);
/* Update success/fail counts if not searching for new mode */
if (lq_sta->rs_state == RS_STATE_STAY_IN_COLUMN) {
@ -1344,9 +1362,13 @@ void iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
else
continue;
rs_collect_tx_data(mvm, lq_sta, tmp_tbl, lq_rate.index,
1, i < retries ? 0 : legacy_success,
reduced_txp);
rs_collect_tpc_data(mvm, lq_sta, tmp_tbl,
lq_rate.index, 1,
i < retries ? 0 : legacy_success,
reduced_txp);
rs_collect_tlc_data(mvm, lq_sta, tmp_tbl,
lq_rate.index, 1,
i < retries ? 0 : legacy_success);
}
/* Update success/fail counts if not searching for new mode */

4
drivers/net/wireless/intel/iwlwifi/mvm/scan.c
Просмотреть файл

@ -1301,6 +1301,10 @@ int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm,
return -EBUSY;
}
/* we don't support "match all" in the firmware */
if (!req->n_match_sets)
return -EOPNOTSUPP;
ret = iwl_mvm_check_running_scans(mvm, type);
if (ret)
return ret;

5
drivers/net/wireless/intel/iwlwifi/mvm/tx.c
Просмотреть файл

@ -1064,7 +1064,6 @@ static void iwl_mvm_rx_tx_cmd_agg(struct iwl_mvm *mvm,
struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
mvmsta->tid_data[tid].rate_n_flags =
le32_to_cpu(tx_resp->initial_rate);
mvmsta->tid_data[tid].reduced_tpc = tx_resp->reduced_tpc;
mvmsta->tid_data[tid].tx_time =
le16_to_cpu(tx_resp->wireless_media_time);
}
@ -1095,7 +1094,7 @@ static void iwl_mvm_tx_info_from_ba_notif(struct ieee80211_tx_info *info,
/* TODO: not accounted if the whole A-MPDU failed */
info->status.tx_time = tid_data->tx_time;
info->status.status_driver_data[0] =
(void *)(uintptr_t)tid_data->reduced_tpc;
(void *)(uintptr_t)ba_notif->reduced_txp;
info->status.status_driver_data[1] =
(void *)(uintptr_t)tid_data->rate_n_flags;
}
@ -1168,6 +1167,8 @@ void iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
scd_flow, ba_resp_scd_ssn, ba_notif->txed,
ba_notif->txed_2_done);
IWL_DEBUG_TX_REPLY(mvm, "reduced txp from ba notif %d\n",
ba_notif->reduced_txp);
tid_data->next_reclaimed = ba_resp_scd_ssn;
iwl_mvm_check_ratid_empty(mvm, sta, tid);

4
drivers/net/wireless/intel/iwlwifi/pcie/drv.c
Просмотреть файл

@ -380,7 +380,10 @@ static const struct pci_device_id iwl_hw_card_ids[] = {
{IWL_PCI_DEVICE(0x3165, 0x8110, iwl3165_2ac_cfg)},
/* 3168 Series */
{IWL_PCI_DEVICE(0x24FB, 0x2010, iwl3168_2ac_cfg)},
{IWL_PCI_DEVICE(0x24FB, 0x2110, iwl3168_2ac_cfg)},
{IWL_PCI_DEVICE(0x24FB, 0x2050, iwl3168_2ac_cfg)},
{IWL_PCI_DEVICE(0x24FB, 0x2150, iwl3168_2ac_cfg)},
{IWL_PCI_DEVICE(0x24FB, 0x0000, iwl3168_2ac_cfg)},
/* 7265 Series */
@ -477,6 +480,7 @@ static const struct pci_device_id iwl_hw_card_ids[] = {
{IWL_PCI_DEVICE(0x24F3, 0x0000, iwl8265_2ac_cfg)},
{IWL_PCI_DEVICE(0x24FD, 0x0010, iwl8265_2ac_cfg)},
{IWL_PCI_DEVICE(0x24FD, 0x8010, iwl8265_2ac_cfg)},
{IWL_PCI_DEVICE(0x24FD, 0x0810, iwl8265_2ac_cfg)},
/* 9000 Series */
{IWL_PCI_DEVICE(0x9DF0, 0x2A10, iwl5165_2ac_cfg)},

9
drivers/net/wireless/intel/iwlwifi/pcie/internal.h
Просмотреть файл

@ -507,6 +507,15 @@ static inline void iwl_enable_interrupts(struct iwl_trans *trans)
iwl_write32(trans, CSR_INT_MASK, trans_pcie->inta_mask);
}
static inline void iwl_enable_fw_load_int(struct iwl_trans *trans)
{
struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
IWL_DEBUG_ISR(trans, "Enabling FW load interrupt\n");
trans_pcie->inta_mask = CSR_INT_BIT_FH_TX;
iwl_write32(trans, CSR_INT_MASK, trans_pcie->inta_mask);
}
static inline void iwl_enable_rfkill_int(struct iwl_trans *trans)
{
struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);

8
drivers/net/wireless/intel/iwlwifi/pcie/rx.c
Просмотреть файл

@ -1614,9 +1614,11 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id)
inta & ~trans_pcie->inta_mask);
}
/* Re-enable all interrupts */
/* only Re-enable if disabled by irq */
if (test_bit(STATUS_INT_ENABLED, &trans->status))
/* we are loading the firmware, enable FH_TX interrupt only */
if (handled & CSR_INT_BIT_FH_TX)
iwl_enable_fw_load_int(trans);
/* only Re-enable all interrupt if disabled by irq */
else if (test_bit(STATUS_INT_ENABLED, &trans->status))
iwl_enable_interrupts(trans);
/* Re-enable RF_KILL if it occurred */
else if (handled & CSR_INT_BIT_RF_KILL)

188
drivers/net/wireless/intel/iwlwifi/pcie/trans.c
Просмотреть файл

@ -1022,82 +1022,6 @@ static int iwl_pcie_load_given_ucode_8000(struct iwl_trans *trans,
&first_ucode_section);
}
static int iwl_trans_pcie_start_fw(struct iwl_trans *trans,
const struct fw_img *fw, bool run_in_rfkill)
{
struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
bool hw_rfkill;
int ret;
mutex_lock(&trans_pcie->mutex);
/* Someone called stop_device, don't try to start_fw */
if (trans_pcie->is_down) {
IWL_WARN(trans,
"Can't start_fw since the HW hasn't been started\n");
ret = EIO;
goto out;
}
/* This may fail if AMT took ownership of the device */
if (iwl_pcie_prepare_card_hw(trans)) {
IWL_WARN(trans, "Exit HW not ready\n");
ret = -EIO;
goto out;
}
iwl_enable_rfkill_int(trans);
/* If platform's RF_KILL switch is NOT set to KILL */
hw_rfkill = iwl_is_rfkill_set(trans);
if (hw_rfkill)
set_bit(STATUS_RFKILL, &trans->status);
else
clear_bit(STATUS_RFKILL, &trans->status);
iwl_trans_pcie_rf_kill(trans, hw_rfkill);
if (hw_rfkill && !run_in_rfkill) {
ret = -ERFKILL;
goto out;
}
iwl_write32(trans, CSR_INT, 0xFFFFFFFF);
ret = iwl_pcie_nic_init(trans);
if (ret) {
IWL_ERR(trans, "Unable to init nic\n");
goto out;
}
/* make sure rfkill handshake bits are cleared */
iwl_write32(trans, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
iwl_write32(trans, CSR_UCODE_DRV_GP1_CLR,
CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
/* clear (again), then enable host interrupts */
iwl_write32(trans, CSR_INT, 0xFFFFFFFF);
iwl_enable_interrupts(trans);
/* really make sure rfkill handshake bits are cleared */
iwl_write32(trans, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
iwl_write32(trans, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
/* Load the given image to the HW */
if (trans->cfg->device_family == IWL_DEVICE_FAMILY_8000)
ret = iwl_pcie_load_given_ucode_8000(trans, fw);
else
ret = iwl_pcie_load_given_ucode(trans, fw);
out:
mutex_unlock(&trans_pcie->mutex);
return ret;
}
static void iwl_trans_pcie_fw_alive(struct iwl_trans *trans, u32 scd_addr)
{
iwl_pcie_reset_ict(trans);
iwl_pcie_tx_start(trans, scd_addr);
}
static void _iwl_trans_pcie_stop_device(struct iwl_trans *trans, bool low_power)
{
struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
@ -1128,7 +1052,8 @@ static void _iwl_trans_pcie_stop_device(struct iwl_trans *trans, bool low_power)
* already dead.
*/
if (test_and_clear_bit(STATUS_DEVICE_ENABLED, &trans->status)) {
IWL_DEBUG_INFO(trans, "DEVICE_ENABLED bit was set and is now cleared\n");
IWL_DEBUG_INFO(trans,
"DEVICE_ENABLED bit was set and is now cleared\n");
iwl_pcie_tx_stop(trans);
iwl_pcie_rx_stop(trans);
@ -1162,7 +1087,6 @@ static void _iwl_trans_pcie_stop_device(struct iwl_trans *trans, bool low_power)
iwl_disable_interrupts(trans);
spin_unlock(&trans_pcie->irq_lock);
/* clear all status bits */
clear_bit(STATUS_SYNC_HCMD_ACTIVE, &trans->status);
clear_bit(STATUS_INT_ENABLED, &trans->status);
@ -1195,10 +1119,116 @@ static void _iwl_trans_pcie_stop_device(struct iwl_trans *trans, bool low_power)
if (hw_rfkill != was_hw_rfkill)
iwl_trans_pcie_rf_kill(trans, hw_rfkill);
/* re-take ownership to prevent other users from stealing the deivce */
/* re-take ownership to prevent other users from stealing the device */
iwl_pcie_prepare_card_hw(trans);
}
static int iwl_trans_pcie_start_fw(struct iwl_trans *trans,
const struct fw_img *fw, bool run_in_rfkill)
{
struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
bool hw_rfkill;
int ret;
/* This may fail if AMT took ownership of the device */
if (iwl_pcie_prepare_card_hw(trans)) {
IWL_WARN(trans, "Exit HW not ready\n");
ret = -EIO;
goto out;
}
iwl_enable_rfkill_int(trans);
iwl_write32(trans, CSR_INT, 0xFFFFFFFF);
/*
* We enabled the RF-Kill interrupt and the handler may very
* well be running. Disable the interrupts to make sure no other
* interrupt can be fired.
*/
iwl_disable_interrupts(trans);
/* Make sure it finished running */
synchronize_irq(trans_pcie->pci_dev->irq);
mutex_lock(&trans_pcie->mutex);
/* If platform's RF_KILL switch is NOT set to KILL */
hw_rfkill = iwl_is_rfkill_set(trans);
if (hw_rfkill)
set_bit(STATUS_RFKILL, &trans->status);
else
clear_bit(STATUS_RFKILL, &trans->status);
iwl_trans_pcie_rf_kill(trans, hw_rfkill);
if (hw_rfkill && !run_in_rfkill) {
ret = -ERFKILL;
goto out;
}
/* Someone called stop_device, don't try to start_fw */
if (trans_pcie->is_down) {
IWL_WARN(trans,
"Can't start_fw since the HW hasn't been started\n");
ret = -EIO;
goto out;
}
/* make sure rfkill handshake bits are cleared */
iwl_write32(trans, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
iwl_write32(trans, CSR_UCODE_DRV_GP1_CLR,
CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
/* clear (again), then enable host interrupts */
iwl_write32(trans, CSR_INT, 0xFFFFFFFF);
ret = iwl_pcie_nic_init(trans);
if (ret) {
IWL_ERR(trans, "Unable to init nic\n");
goto out;
}
/*
* Now, we load the firmware and don't want to be interrupted, even
* by the RF-Kill interrupt (hence mask all the interrupt besides the
* FH_TX interrupt which is needed to load the firmware). If the
* RF-Kill switch is toggled, we will find out after having loaded
* the firmware and return the proper value to the caller.
*/
iwl_enable_fw_load_int(trans);
/* really make sure rfkill handshake bits are cleared */
iwl_write32(trans, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
iwl_write32(trans, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
/* Load the given image to the HW */
if (trans->cfg->device_family == IWL_DEVICE_FAMILY_8000)
ret = iwl_pcie_load_given_ucode_8000(trans, fw);
else
ret = iwl_pcie_load_given_ucode(trans, fw);
iwl_enable_interrupts(trans);
/* re-check RF-Kill state since we may have missed the interrupt */
hw_rfkill = iwl_is_rfkill_set(trans);
if (hw_rfkill)
set_bit(STATUS_RFKILL, &trans->status);
else
clear_bit(STATUS_RFKILL, &trans->status);
iwl_trans_pcie_rf_kill(trans, hw_rfkill);
if (hw_rfkill && !run_in_rfkill)
ret = -ERFKILL;
out:
mutex_unlock(&trans_pcie->mutex);
return ret;
}
static void iwl_trans_pcie_fw_alive(struct iwl_trans *trans, u32 scd_addr)
{
iwl_pcie_reset_ict(trans);
iwl_pcie_tx_start(trans, scd_addr);
}
static void iwl_trans_pcie_stop_device(struct iwl_trans *trans, bool low_power)
{
struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);