iwlwifi: move iwl_set_soc_latency to iwl-drv to be used by other op_modes

All the op_mode need to send this command as well. Instead of
duplicating the code from mvm, put the code in a common place.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200424194456.7f30f977f9bf.I060b51d0d66d09b9d1ee512e7de8f2d695a52152@changeid

1 files changed, 53 insertions, 2 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/init.c b/drivers/net/wireless/intel/iwlwifi/fw/init.c
index ba00d162ce72..b373606e1241 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/init.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/init.c
@@ -6,7 +6,7 @@
  * GPL LICENSE SUMMARY
  *
  * Copyright(c) 2017 Intel Deutschland GmbH
- * Copyright(c) 2019 Intel Corporation
+ * Copyright(c) 2019 - 2020 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) 2019 Intel Corporation
+ * Copyright(c) 2019 - 2020 Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -62,6 +62,9 @@
 #include "dbg.h"
 #include "debugfs.h"
 
+#include "fw/api/soc.h"
+#include "fw/api/commands.h"
+
 void iwl_fw_runtime_init(struct iwl_fw_runtime *fwrt, struct iwl_trans *trans,
 			const struct iwl_fw *fw,
 			const struct iwl_fw_runtime_ops *ops, void *ops_ctx,
@@ -95,3 +98,51 @@ void iwl_fw_runtime_resume(struct iwl_fw_runtime *fwrt)
 	iwl_fw_resume_timestamp(fwrt);
 }
 IWL_EXPORT_SYMBOL(iwl_fw_runtime_resume);
+
+/* set device type and latency */
+int iwl_set_soc_latency(struct iwl_fw_runtime *fwrt)
+{
+	struct iwl_soc_configuration_cmd cmd = {};
+	struct iwl_host_cmd hcmd = {
+		.id = iwl_cmd_id(SOC_CONFIGURATION_CMD, SYSTEM_GROUP, 0),
+		.data[0] = &cmd,
+		.len[0] = sizeof(cmd),
+	};
+	int ret;
+
+	/*
+	 * In VER_1 of this command, the discrete value is considered
+	 * an integer; In VER_2, it's a bitmask.  Since we have only 2
+	 * values in VER_1, this is backwards-compatible with VER_2,
+	 * as long as we don't set any other bits.
+	 */
+	if (!fwrt->trans->trans_cfg->integrated)
+		cmd.flags = cpu_to_le32(SOC_CONFIG_CMD_FLAGS_DISCRETE);
+
+	BUILD_BUG_ON(IWL_CFG_TRANS_LTR_DELAY_NONE !=
+		     SOC_FLAGS_LTR_APPLY_DELAY_NONE);
+	BUILD_BUG_ON(IWL_CFG_TRANS_LTR_DELAY_200US !=
+		     SOC_FLAGS_LTR_APPLY_DELAY_200);
+	BUILD_BUG_ON(IWL_CFG_TRANS_LTR_DELAY_2500US !=
+		     SOC_FLAGS_LTR_APPLY_DELAY_2500);
+	BUILD_BUG_ON(IWL_CFG_TRANS_LTR_DELAY_1820US !=
+		     SOC_FLAGS_LTR_APPLY_DELAY_1820);
+
+	if (fwrt->trans->trans_cfg->ltr_delay != IWL_CFG_TRANS_LTR_DELAY_NONE &&
+	    !WARN_ON(!fwrt->trans->trans_cfg->integrated))
+		cmd.flags |= le32_encode_bits(fwrt->trans->trans_cfg->ltr_delay,
+					      SOC_FLAGS_LTR_APPLY_DELAY_MASK);
+
+	if (iwl_fw_lookup_cmd_ver(fwrt->fw, IWL_ALWAYS_LONG_GROUP,
+				  SCAN_REQ_UMAC) >= 2 &&
+	    fwrt->trans->trans_cfg->low_latency_xtal)
+		cmd.flags |= cpu_to_le32(SOC_CONFIG_CMD_FLAGS_LOW_LATENCY);
+
+	cmd.latency = cpu_to_le32(fwrt->trans->trans_cfg->xtal_latency);
+
+	ret = iwl_trans_send_cmd(fwrt->trans, &hcmd);
+	if (ret)
+		IWL_ERR(fwrt, "Failed to set soc latency: %d\n", ret);
+	return ret;
+}
+IWL_EXPORT_SYMBOL(iwl_set_soc_latency);