Merge tag 'iwlwifi-next-for-kalle-2022-03-10' of git://git.kernel.org…

…/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

iwlwifi patches for v5.18

* Mostly debugging infra changes;
* Some more work on the Bz family of devices;
* Bump the FW API twice;
* Some other small fixes, clean-ups and improvements.

drivers/net/wireless/intel/iwlwifi/cfg/22000.c

@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
 /*
  * Copyright (C) 2015-2017 Intel Deutschland GmbH
- * Copyright (C) 2018-2021 Intel Corporation
+ * Copyright (C) 2018-2022 Intel Corporation
  */
 #include <linux/module.h>
 #include <linux/stringify.h>
@@ -10,7 +10,7 @@
 #include "fw/api/txq.h"
 
 /* Highest firmware API version supported */
-#define IWL_22000_UCODE_API_MAX	70
+#define IWL_22000_UCODE_API_MAX	72
 
 /* Lowest firmware API version supported */
 #define IWL_22000_UCODE_API_MIN	39
@@ -391,6 +391,21 @@ const struct iwl_cfg_trans_params iwl_so_long_latency_trans_cfg = {
 	.ltr_delay = IWL_CFG_TRANS_LTR_DELAY_2500US,
 };
 
+const struct iwl_cfg_trans_params iwl_so_long_latency_imr_trans_cfg = {
+	.mq_rx_supported = true,
+	.use_tfh = true,
+	.rf_id = true,
+	.gen2 = true,
+	.device_family = IWL_DEVICE_FAMILY_AX210,
+	.base_params = &iwl_ax210_base_params,
+	.umac_prph_offset = 0x300000,
+	.integrated = true,
+	.low_latency_xtal = true,
+	.xtal_latency = 12000,
+	.ltr_delay = IWL_CFG_TRANS_LTR_DELAY_2500US,
+	.imr_enabled = true,
+};
+
 /*
  * If the device doesn't support HE, no need to have that many buffers.
  * 22000 devices can split multiple frames into a single RB, so fewer are

drivers/net/wireless/intel/iwlwifi/fw/acpi.c

@@ -4,6 +4,7 @@
  * Copyright (C) 2019-2021 Intel Corporation
  */
 #include <linux/uuid.h>
+#include <linux/dmi.h>
 #include "iwl-drv.h"
 #include "iwl-debug.h"
 #include "acpi.h"
@@ -19,6 +20,30 @@ const guid_t iwl_rfi_guid = GUID_INIT(0x7266172C, 0x220B, 0x4B29,
 				      0xDD, 0x26, 0xB5, 0xFD);
 IWL_EXPORT_SYMBOL(iwl_rfi_guid);
 
+static const struct dmi_system_id dmi_ppag_approved_list[] = {
+	{ .ident = "HP",
+	  .matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "HP"),
+		},
+	},
+	{ .ident = "SAMSUNG",
+	  .matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD"),
+		},
+	},
+	{ .ident = "MSFT",
+	  .matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
+		},
+	},
+	{ .ident = "ASUS",
+	  .matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTek COMPUTER INC."),
+		},
+	},
+	{}
+};
+
 static int iwl_acpi_get_handle(struct device *dev, acpi_string method,
 			       acpi_handle *ret_handle)
 {
@@ -537,8 +562,8 @@ IWL_EXPORT_SYMBOL(iwl_sar_select_profile);
 int iwl_sar_get_wrds_table(struct iwl_fw_runtime *fwrt)
 {
 	union acpi_object *wifi_pkg, *table, *data;
-	bool enabled;
 	int ret, tbl_rev;
+	u32 flags;
 	u8 num_chains, num_sub_bands;
 
 	data = iwl_acpi_get_object(fwrt->dev, ACPI_WRDS_METHOD);
@@ -604,15 +629,17 @@ int iwl_sar_get_wrds_table(struct iwl_fw_runtime *fwrt)
 
 	IWL_DEBUG_RADIO(fwrt, "Reading WRDS tbl_rev=%d\n", tbl_rev);
 
-	enabled = !!(wifi_pkg->package.elements[1].integer.value);
+	flags = wifi_pkg->package.elements[1].integer.value;
+	fwrt->reduced_power_flags = flags >> IWL_REDUCE_POWER_FLAGS_POS;
 
 	/* position of the actual table */
 	table = &wifi_pkg->package.elements[2];
 
 	/* The profile from WRDS is officially profile 1, but goes
 	 * into sar_profiles[0] (because we don't have a profile 0).
 	 */
-	ret = iwl_sar_set_profile(table, &fwrt->sar_profiles[0], enabled,
+	ret = iwl_sar_set_profile(table, &fwrt->sar_profiles[0],
+				  flags & IWL_SAR_ENABLE_MSK,
 				  num_chains, num_sub_bands);
 out_free:
 	kfree(data);
@@ -969,3 +996,181 @@ __le32 iwl_acpi_get_lari_config_bitmap(struct iwl_fw_runtime *fwrt)
 	return config_bitmap;
 }
 IWL_EXPORT_SYMBOL(iwl_acpi_get_lari_config_bitmap);
+
+int iwl_acpi_get_ppag_table(struct iwl_fw_runtime *fwrt)
+{
+	union acpi_object *wifi_pkg, *data, *flags;
+	int i, j, ret, tbl_rev, num_sub_bands = 0;
+	int idx = 2;
+
+	fwrt->ppag_flags = 0;
+
+	data = iwl_acpi_get_object(fwrt->dev, ACPI_PPAG_METHOD);
+	if (IS_ERR(data))
+		return PTR_ERR(data);
+
+	/* try to read ppag table rev 2 or 1 (both have the same data size) */
+	wifi_pkg = iwl_acpi_get_wifi_pkg(fwrt->dev, data,
+				ACPI_PPAG_WIFI_DATA_SIZE_V2, &tbl_rev);
+
+	if (!IS_ERR(wifi_pkg)) {
+		if (tbl_rev == 1 || tbl_rev == 2) {
+			num_sub_bands = IWL_NUM_SUB_BANDS_V2;
+			IWL_DEBUG_RADIO(fwrt,
+					"Reading PPAG table v2 (tbl_rev=%d)\n",
+					tbl_rev);
+			goto read_table;
+		} else {
+			ret = -EINVAL;
+			goto out_free;
+		}
+	}
+
+	/* try to read ppag table revision 0 */
+	wifi_pkg = iwl_acpi_get_wifi_pkg(fwrt->dev, data,
+			ACPI_PPAG_WIFI_DATA_SIZE_V1, &tbl_rev);
+
+	if (!IS_ERR(wifi_pkg)) {
+		if (tbl_rev != 0) {
+			ret = -EINVAL;
+			goto out_free;
+		}
+		num_sub_bands = IWL_NUM_SUB_BANDS_V1;
+		IWL_DEBUG_RADIO(fwrt, "Reading PPAG table v1 (tbl_rev=0)\n");
+		goto read_table;
+	}
+
+read_table:
+	fwrt->ppag_ver = tbl_rev;
+	flags = &wifi_pkg->package.elements[1];
+
+	if (flags->type != ACPI_TYPE_INTEGER) {
+		ret = -EINVAL;
+		goto out_free;
+	}
+
+	fwrt->ppag_flags = flags->integer.value & ACPI_PPAG_MASK;
+
+	if (!fwrt->ppag_flags) {
+		ret = 0;
+		goto out_free;
+	}
+
+	/*
+	 * read, verify gain values and save them into the PPAG table.
+	 * first sub-band (j=0) corresponds to Low-Band (2.4GHz), and the
+	 * following sub-bands to High-Band (5GHz).
+	 */
+	for (i = 0; i < IWL_NUM_CHAIN_LIMITS; i++) {
+		for (j = 0; j < num_sub_bands; j++) {
+			union acpi_object *ent;
+
+			ent = &wifi_pkg->package.elements[idx++];
+			if (ent->type != ACPI_TYPE_INTEGER) {
+				ret = -EINVAL;
+				goto out_free;
+			}
+
+			fwrt->ppag_chains[i].subbands[j] = ent->integer.value;
+
+			if ((j == 0 &&
+				(fwrt->ppag_chains[i].subbands[j] > ACPI_PPAG_MAX_LB ||
+				 fwrt->ppag_chains[i].subbands[j] < ACPI_PPAG_MIN_LB)) ||
+				(j != 0 &&
+				(fwrt->ppag_chains[i].subbands[j] > ACPI_PPAG_MAX_HB ||
+				fwrt->ppag_chains[i].subbands[j] < ACPI_PPAG_MIN_HB))) {
+					fwrt->ppag_flags = 0;
+					ret = -EINVAL;
+					goto out_free;
+				}
+		}
+	}
+
+
+	ret = 0;
+
+out_free:
+	kfree(data);
+	return ret;
+}
+IWL_EXPORT_SYMBOL(iwl_acpi_get_ppag_table);
+
+int iwl_read_ppag_table(struct iwl_fw_runtime *fwrt, union iwl_ppag_table_cmd *cmd,
+			int *cmd_size)
+{
+        u8 cmd_ver;
+        int i, j, num_sub_bands;
+        s8 *gain;
+
+        if (!fw_has_capa(&fwrt->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_PPAG)) {
+                IWL_DEBUG_RADIO(fwrt,
+                                "PPAG capability not supported by FW, command not sent.\n");
+                return -EINVAL;
+        }
+        if (!fwrt->ppag_flags) {
+                IWL_DEBUG_RADIO(fwrt, "PPAG not enabled, command not sent.\n");
+                return -EINVAL;
+        }
+
+        /* The 'flags' field is the same in v1 and in v2 so we can just
+         * use v1 to access it.
+         */
+        cmd->v1.flags = cpu_to_le32(fwrt->ppag_flags);
+        cmd_ver = iwl_fw_lookup_cmd_ver(fwrt->fw,
+                                        WIDE_ID(PHY_OPS_GROUP, PER_PLATFORM_ANT_GAIN_CMD),
+                                        IWL_FW_CMD_VER_UNKNOWN);
+	if (cmd_ver == 1) {
+                num_sub_bands = IWL_NUM_SUB_BANDS_V1;
+                gain = cmd->v1.gain[0];
+                *cmd_size = sizeof(cmd->v1);
+                if (fwrt->ppag_ver == 1 || fwrt->ppag_ver == 2) {
+                        IWL_DEBUG_RADIO(fwrt,
+                                        "PPAG table rev is %d but FW supports v1, sending truncated table\n",
+                                        fwrt->ppag_ver);
+                        cmd->v1.flags &= cpu_to_le32(IWL_PPAG_ETSI_MASK);
+		}
+	} else if (cmd_ver == 2 || cmd_ver == 3) {
+                num_sub_bands = IWL_NUM_SUB_BANDS_V2;
+                gain = cmd->v2.gain[0];
+                *cmd_size = sizeof(cmd->v2);
+                if (fwrt->ppag_ver == 0) {
+                        IWL_DEBUG_RADIO(fwrt,
+                                        "PPAG table is v1 but FW supports v2, sending padded table\n");
+                } else if (cmd_ver == 2 && fwrt->ppag_ver == 2) {
+                        IWL_DEBUG_RADIO(fwrt,
+                                        "PPAG table is v3 but FW supports v2, sending partial bitmap.\n");
+                        cmd->v1.flags &= cpu_to_le32(IWL_PPAG_ETSI_MASK);
+                }
+        } else {
+                IWL_DEBUG_RADIO(fwrt, "Unsupported PPAG command version\n");
+                return -EINVAL;
+        }
+
+	for (i = 0; i < IWL_NUM_CHAIN_LIMITS; i++) {
+                for (j = 0; j < num_sub_bands; j++) {
+                        gain[i * num_sub_bands + j] =
+                                fwrt->ppag_chains[i].subbands[j];
+                        IWL_DEBUG_RADIO(fwrt,
+                                        "PPAG table: chain[%d] band[%d]: gain = %d\n",
+                                        i, j, gain[i * num_sub_bands + j]);
+                }
+        }
+
+	return 0;
+}
+IWL_EXPORT_SYMBOL(iwl_read_ppag_table);
+
+bool iwl_acpi_is_ppag_approved(struct iwl_fw_runtime *fwrt)
+{
+
+	if (!dmi_check_system(dmi_ppag_approved_list)) {
+		IWL_DEBUG_RADIO(fwrt,
+			"System vendor '%s' is not in the approved list, disabling PPAG.\n",
+			dmi_get_system_info(DMI_SYS_VENDOR));
+			fwrt->ppag_flags = 0;
+			return false;
+	}
+
+	return true;
+}
+IWL_EXPORT_SYMBOL(iwl_acpi_is_ppag_approved);

drivers/net/wireless/intel/iwlwifi/fw/acpi.h

@@ -91,6 +91,11 @@
 #define ACPI_PPAG_MAX_LB 24
 #define ACPI_PPAG_MIN_HB -16
 #define ACPI_PPAG_MAX_HB 40
+#define ACPI_PPAG_MASK 3
+#define IWL_PPAG_ETSI_MASK BIT(0)
+
+#define IWL_SAR_ENABLE_MSK		BIT(0)
+#define IWL_REDUCE_POWER_FLAGS_POS	1
 
 /*
  * The profile for revision 2 is a superset of revision 1, which is in
@@ -220,6 +225,13 @@ int iwl_acpi_get_tas(struct iwl_fw_runtime *fwrt,
 
 __le32 iwl_acpi_get_lari_config_bitmap(struct iwl_fw_runtime *fwrt);
 
+int iwl_acpi_get_ppag_table(struct iwl_fw_runtime *fwrt);
+
+int iwl_read_ppag_table(struct iwl_fw_runtime *fwrt, union iwl_ppag_table_cmd *cmd,
+			int *cmd_size);
+
+bool iwl_acpi_is_ppag_approved(struct iwl_fw_runtime *fwrt);
+
 #else /* CONFIG_ACPI */
 
 static inline void *iwl_acpi_get_object(struct device *dev, acpi_string method)
@@ -307,6 +319,22 @@ static inline __le32 iwl_acpi_get_lari_config_bitmap(struct iwl_fw_runtime *fwrt
 	return 0;
 }
 
+static inline int iwl_acpi_get_ppag_table(struct iwl_fw_runtime *fwrt)
+{
+	return -ENOENT;
+}
+
+static inline int iwl_read_ppag_table(struct iwl_fw_runtime *fwrt,
+				    union iwl_ppag_table_cmd *cmd, int *cmd_size)
+{
+	return -ENOENT;
+}
+
+static inline bool iwl_acpi_is_ppag_approved(struct iwl_fw_runtime *fwrt)
+{
+	return false;
+}
+
 #endif /* CONFIG_ACPI */
 
 static inline union acpi_object *

drivers/net/wireless/intel/iwlwifi/fw/api/power.h

@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
 /*
- * Copyright (C) 2012-2014, 2018-2021 Intel Corporation
+ * Copyright (C) 2012-2014, 2018-2022 Intel Corporation
  * Copyright (C) 2013-2014 Intel Mobile Communications GmbH
  * Copyright (C) 2015-2017 Intel Deutschland GmbH
  */
@@ -340,7 +340,7 @@ struct iwl_dev_tx_power_cmd_v5 {
 } __packed; /* TX_REDUCED_POWER_API_S_VER_5 */
 
 /**
- * struct iwl_dev_tx_power_cmd_v5 - TX power reduction command version 5
+ * struct iwl_dev_tx_power_cmd_v6 - TX power reduction command version 6
  * @per_chain: per chain restrictions
  * @enable_ack_reduction: enable or disable close range ack TX power
  *	reduction.
@@ -360,6 +360,28 @@ struct iwl_dev_tx_power_cmd_v6 {
 	__le32 timer_period;
 } __packed; /* TX_REDUCED_POWER_API_S_VER_6 */
 
+/**
+ * struct iwl_dev_tx_power_cmd_v7 - TX power reduction command version 7
+ * @per_chain: per chain restrictions
+ * @enable_ack_reduction: enable or disable close range ack TX power
+ *	reduction.
+ * @per_chain_restriction_changed: is per_chain_restriction has changed
+ *	from last command. used if set_mode is
+ *	IWL_TX_POWER_MODE_SET_SAR_TIMER.
+ *	note: if not changed, the command is used for keep alive only.
+ * @reserved: reserved (padding)
+ * @timer_period: timer in milliseconds. if expires FW will change to default
+ *	BIOS values. relevant if setMode is IWL_TX_POWER_MODE_SET_SAR_TIMER
+ * @flags: reduce power flags.
+ */
+struct iwl_dev_tx_power_cmd_v7 {
+	__le16 per_chain[IWL_NUM_CHAIN_TABLES_V2][IWL_NUM_CHAIN_LIMITS][IWL_NUM_SUB_BANDS_V2];
+	u8 enable_ack_reduction;
+	u8 per_chain_restriction_changed;
+	u8 reserved[2];
+	__le32 timer_period;
+	__le32 flags;
+} __packed; /* TX_REDUCED_POWER_API_S_VER_7 */
 /**
  * struct iwl_dev_tx_power_cmd - TX power reduction command (multiversion)
  * @common: common part of the command
@@ -375,6 +397,7 @@ struct iwl_dev_tx_power_cmd {
 		struct iwl_dev_tx_power_cmd_v4 v4;
 		struct iwl_dev_tx_power_cmd_v5 v5;
 		struct iwl_dev_tx_power_cmd_v6 v6;
+		struct iwl_dev_tx_power_cmd_v7 v7;
 	};
 };