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-rw-r--r--drivers/net/wireless/intel/iwlwifi/fw/acpi.c32
-rw-r--r--drivers/net/wireless/intel/iwlwifi/fw/acpi.h22
-rw-r--r--drivers/net/wireless/intel/iwlwifi/fw/api/power.h13
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/fw.c7
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/mvm.h2
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/power.c7
6 files changed, 74 insertions, 9 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
index 32d000cffe9f..405038ce98d6 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
@@ -6,6 +6,7 @@
* GPL LICENSE SUMMARY
*
* Copyright(c) 2017 Intel Deutschland GmbH
+ * Copyright (C) 2019 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@@ -26,6 +27,7 @@
* BSD LICENSE
*
* Copyright(c) 2017 Intel Deutschland GmbH
+ * Copyright (C) 2019 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -205,3 +207,33 @@ out:
return dflt_pwr_limit;
}
IWL_EXPORT_SYMBOL(iwl_acpi_get_pwr_limit);
+
+int iwl_acpi_get_eckv(struct device *dev, u32 *extl_clk)
+{
+ union acpi_object *wifi_pkg, *data;
+ int ret;
+
+ data = iwl_acpi_get_object(dev, ACPI_ECKV_METHOD);
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ wifi_pkg = iwl_acpi_get_wifi_pkg(dev, data, ACPI_ECKV_WIFI_DATA_SIZE);
+ if (IS_ERR(wifi_pkg)) {
+ ret = PTR_ERR(wifi_pkg);
+ goto out_free;
+ }
+
+ if (wifi_pkg->package.elements[1].type != ACPI_TYPE_INTEGER) {
+ ret = -EINVAL;
+ goto out_free;
+ }
+
+ *extl_clk = wifi_pkg->package.elements[1].integer.value;
+
+ ret = 0;
+
+out_free:
+ kfree(data);
+ return ret;
+}
+IWL_EXPORT_SYMBOL(iwl_acpi_get_eckv);
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.h b/drivers/net/wireless/intel/iwlwifi/fw/acpi.h
index 7492dfb6729b..f5704e16643f 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.h
@@ -6,7 +6,7 @@
* GPL LICENSE SUMMARY
*
* Copyright(c) 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 Intel Corporation
+ * Copyright(c) 2018 - 2019 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@@ -27,7 +27,7 @@
* BSD LICENSE
*
* Copyright(c) 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 Intel Corporation
+ * Copyright(c) 2018 - 2019 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -67,6 +67,7 @@
#define ACPI_WGDS_METHOD "WGDS"
#define ACPI_WRDD_METHOD "WRDD"
#define ACPI_SPLC_METHOD "SPLC"
+#define ACPI_ECKV_METHOD "ECKV"
#define ACPI_WIFI_DOMAIN (0x07)
@@ -86,6 +87,7 @@
#define ACPI_WGDS_WIFI_DATA_SIZE 19
#define ACPI_WRDD_WIFI_DATA_SIZE 2
#define ACPI_SPLC_WIFI_DATA_SIZE 2
+#define ACPI_ECKV_WIFI_DATA_SIZE 2
#define ACPI_WGDS_NUM_BANDS 2
#define ACPI_WGDS_TABLE_SIZE 3
@@ -109,6 +111,17 @@ int iwl_acpi_get_mcc(struct device *dev, char *mcc);
u64 iwl_acpi_get_pwr_limit(struct device *dev);
+/*
+ * iwl_acpi_get_eckv - read external clock validation from ACPI, if available
+ *
+ * @dev: the struct device
+ * @extl_clk: output var (2 bytes) that will get the clk indication.
+ *
+ * This function tries to read the external clock indication
+ * from ACPI if available.
+ */
+int iwl_acpi_get_eckv(struct device *dev, u32 *extl_clk);
+
#else /* CONFIG_ACPI */
static inline void *iwl_acpi_get_object(struct device *dev, acpi_string method)
@@ -133,5 +146,10 @@ static inline u64 iwl_acpi_get_pwr_limit(struct device *dev)
return 0;
}
+static inline int iwl_acpi_get_eckv(struct device *dev, u32 *extl_clk)
+{
+ return -ENOENT;
+}
+
#endif /* CONFIG_ACPI */
#endif /* __iwl_fw_acpi__ */
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/power.h b/drivers/net/wireless/intel/iwlwifi/fw/api/power.h
index 5844898ee92c..01f003c6cff9 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/power.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/power.h
@@ -8,7 +8,7 @@
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
* Copyright(c) 2015 - 2017 Intel Deutschland GmbH
- * Copyright (C) 2018 Intel Corporation
+ * Copyright (C) 2018 - 2019 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@@ -31,7 +31,7 @@
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
* Copyright(c) 2015 - 2017 Intel Deutschland GmbH
- * Copyright (C) 2018 Intel Corporation
+ * Copyright (C) 2018 - 2019 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -200,9 +200,16 @@ struct iwl_powertable_cmd {
* @DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK:
* '1' Allow to save power by turning off
* receiver and transmitter. '0' - does not allow.
+ * @DEVICE_POWER_FLAGS_ALLOW_MEM_RETENTION_MSK:
+ * Device Retention indication, '1' indicate retention is enabled.
+ * @DEVICE_POWER_FLAGS_32K_CLK_VALID_MSK:
+ * 32Khz external slow clock valid indication, '1' indicate cloack is
+ * valid.
*/
enum iwl_device_power_flags {
- DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK = BIT(0),
+ DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK = BIT(0),
+ DEVICE_POWER_FLAGS_ALLOW_MEM_RETENTION_MSK = BIT(1),
+ DEVICE_POWER_FLAGS_32K_CLK_VALID_MSK = BIT(12),
};
/**
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
index 28ef204c9cf7..0278f19180d5 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -8,7 +8,7 @@
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 Intel Corporation
+ * Copyright(c) 2018 - 2019 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@@ -31,7 +31,7 @@
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 Intel Corporation
+ * Copyright(c) 2018 - 2019 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -1266,6 +1266,9 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_UPDATE_DB);
+ if (iwl_acpi_get_eckv(mvm->dev, &mvm->ext_clock_valid))
+ IWL_DEBUG_INFO(mvm, "ECKV table doesn't exist in BIOS\n");
+
ret = iwl_mvm_sar_init(mvm);
if (ret == 0) {
ret = iwl_mvm_sar_geo_init(mvm);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index f4fc81695df1..9993337a2bbd 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -1104,6 +1104,8 @@ struct iwl_mvm {
/* Indicate if device power save is allowed */
u8 ps_disabled; /* u8 instead of bool to ease debugfs_create_* usage */
+ /* Indicate if 32Khz external clock is valid */
+ u32 ext_clock_valid;
unsigned int max_amsdu_len; /* used for debugfs only */
struct ieee80211_vif __rcu *csa_vif;
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/power.c b/drivers/net/wireless/intel/iwlwifi/mvm/power.c
index df9f1d6cdf78..36f5fa1ee793 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/power.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/power.c
@@ -8,7 +8,7 @@
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
* Copyright(c) 2015 - 2017 Intel Deutschland GmbH
- * Copyright (C) 2018 Intel Corporation
+ * Copyright (C) 2018 - 2019 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@@ -31,7 +31,7 @@
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
* Copyright(c) 2015 - 2017 Intel Deutschland GmbH
- * Copyright (C) 2018 Intel Corporation
+ * Copyright (C) 2018 - 2019 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -544,6 +544,9 @@ int iwl_mvm_power_update_device(struct iwl_mvm *mvm)
cmd.flags &=
cpu_to_le16(~DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK);
#endif
+ if (mvm->ext_clock_valid)
+ cmd.flags |= cpu_to_le16(DEVICE_POWER_FLAGS_32K_CLK_VALID_MSK);
+
IWL_DEBUG_POWER(mvm,
"Sending device power command with flags = 0x%X\n",
cmd.flags);
generated by cgit v1.2.3-70-g09d2 (git 2.48.1) at 2025-04-17 01:12:40 +0000