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From:   viktor.barna@celeno.com
To:     linux-wireless@vger.kernel.org
Cc:     Kalle Valo <kvalo@codeaurora.org>,
        "David S . Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        Aviad Brikman <aviad.brikman@celeno.com>,
        Eliav Farber <eliav.farber@gmail.com>,
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        Oleksandr Savchenko <oleksandr.savchenko@celeno.com>,
        Shay Bar <shay.bar@celeno.com>,
        Viktor Barna <viktor.barna@celeno.com>
Subject: [RFC v2 73/96] cl8k: add sounding.h
Date:   Tue, 24 May 2022 14:34:39 +0300
Message-Id: <20220524113502.1094459-74-viktor.barna@celeno.com>
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From: Viktor Barna <viktor.barna@celeno.com>

(Part of the split. Please, take a look at the cover letter for more
details).

Signed-off-by: Viktor Barna <viktor.barna@celeno.com>
---
 drivers/net/wireless/celeno/cl8k/sounding.h | 151 ++++++++++++++++++++
 1 file changed, 151 insertions(+)
 create mode 100644 drivers/net/wireless/celeno/cl8k/sounding.h

diff --git a/drivers/net/wireless/celeno/cl8k/sounding.h b/drivers/net/wireless/celeno/cl8k/sounding.h
new file mode 100644
index 000000000000..abdf834150f9
--- /dev/null
+++ b/drivers/net/wireless/celeno/cl8k/sounding.h
@@ -0,0 +1,151 @@
+/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */
+/* Copyright(c) 2019-2022, Celeno Communications Ltd. */
+
+#ifndef CL_SOUNDING_H
+#define CL_SOUNDING_H
+
+#include <linux/types.h>
+
+#include "fw.h"
+
+#define SOUNDING_ENABLE                                true
+#define SOUNDING_DISABLE                               false
+#define INVALID_SID                                    0xff
+#define XMEM_SIZE                                      (0x180 << 10) /* 384KB */
+#define CL_SOUNDING_STABILITY_TIME                     5
+#define CL_SOUNDING_FACTOR                             10
+
+#define SOUNDING_FEEDBACK_TYPE_SHIFT                   2
+#define SOUNDING_FEEDBACK_TYPE_MASK                    (BIT(SOUNDING_FEEDBACK_TYPE_SHIFT))
+#define SOUNDING_NG_SHIFT                              1
+#define SOUNDING_NG_MASK                               (BIT(SOUNDING_NG_SHIFT))
+#define SOUNDING_MU_CODEBOOK_SIZE_SHIFT                0
+#define SOUNDING_MU_CODEBOOK_SIZE_MASK                 (BIT(SOUNDING_MU_CODEBOOK_SIZE_SHIFT))
+#define SOUNDING_FEEDBACK_TYPE_VAL(fb_type_ng_cb_size) (((fb_type_ng_cb_size) & \
+							  SOUNDING_FEEDBACK_TYPE_MASK) >> \
+							  SOUNDING_FEEDBACK_TYPE_SHIFT)
+#define SOUNDING_NG_VAL(fb_type_ng_cb_size)            (((fb_type_ng_cb_size) & \
+							  SOUNDING_NG_MASK) >> SOUNDING_NG_SHIFT)
+#define SOUNDING_CODEBOOK_SIZE_VAL(fb_type_ng_cb_size) (((fb_type_ng_cb_size) & \
+							  SOUNDING_MU_CODEBOOK_SIZE_MASK) >> \
+							  SOUNDING_MU_CODEBOOK_SIZE_SHIFT)
+
+#define SOUNDING_TYPE_IS_VHT(type)                     ((type) == SOUNDING_TYPE_VHT_SU || \
+							(type) == SOUNDING_TYPE_VHT_MU)
+#define SOUNDING_TYPE_IS_CQI(type)                     ((type) == SOUNDING_TYPE_HE_CQI || \
+							(type) == SOUNDING_TYPE_HE_CQI_TB)
+
+enum fb_type_ng_cb_size {
+	FEEDBACK_TYPE_SU_NG_4_CODEBOOK_SIZE_4_2 = 0x0,
+	FEEDBACK_TYPE_SU_NG_4_CODEBOOK_SIZE_6_4,
+	FEEDBACK_TYPE_SU_NG_16_CODEBOOK_SIZE_4_2,
+	FEEDBACK_TYPE_SU_NG_16_CODEBOOK_SIZE_6_4,
+	FEEDBACK_TYPE_MU_NG_4_CODEBOOK_SIZE_7_5,
+	FEEDBACK_TYPE_MU_NG_4_CODEBOOK_SIZE_9_7,
+	FEEDBACK_TYPE_CQI_TB,
+	FEEDBACK_TYPE_MU_NG_16_CODEBOOK_SIZE_9_7,
+};
+
+enum cl_sounding_response {
+	CL_SOUNDING_RSP_OK = 0,
+
+	CL_SOUNDING_RSP_ERR_RLIMIT,
+	CL_SOUNDING_RSP_ERR_BW,
+	CL_SOUNDING_RSP_ERR_NSS,
+	CL_SOUNDING_RSP_ERR_INTERVAL,
+	CL_SOUNDING_RSP_ERR_ALREADY,
+	CL_SOUNDING_RSP_ERR_STA,
+	CL_SOUNDING_RSP_ERR_TYPE,
+};
+
+enum sounding_type {
+	SOUNDING_TYPE_HE_SU = 0,
+	SOUNDING_TYPE_HE_SU_TB,
+	SOUNDING_TYPE_VHT_SU,
+	SOUNDING_TYPE_HE_CQI,
+	SOUNDING_TYPE_HE_CQI_TB,
+	SOUNDING_TYPE_HE_MU,
+	SOUNDING_TYPE_VHT_MU,
+
+	SOUNDING_TYPE_MAX
+};
+
+enum sounding_interval_coef {
+	SOUNDING_INTERVAL_COEF_MIN_INTERVAL = 0,
+	SOUNDING_INTERVAL_COEF_STA_STEP,
+	SOUNDING_INTERVAL_COEF_INTERVAL_STEP,
+	SOUNDING_INTERVAL_COEF_MAX_INTERVAL,
+	SOUNDING_INTERVAL_COEF_MAX
+};
+
+struct v_matrix_header {
+	u32 format        : 2,
+	    rsv1          : 30;
+	u32 bw            : 2,
+	    nr_index      : 3,
+	    nc_index      : 3,
+	    rsv2          : 24;
+	u32 grouping      : 4,
+	    rsv3          : 28;
+	u32 feedback_type : 1,
+	    codebook_info : 3,
+	    rsv4          : 28;
+	u32 ru_start_idx  : 7,
+	    rsv5          : 25;
+	u32 ru_end_idx    : 7,
+	    rsv6          : 25;
+	u32 padding       : 6,
+	    rsv7          : 26;
+	u32 rsv8;
+};
+
+struct cl_sounding_info {
+	enum sounding_type type;
+	u8 sounding_id;
+	struct v_matrix_header *v_matrices_data;
+	u32 v_matrices_data_len;
+	u32 v_matrices_dma_addr;
+	u8 gid;
+	u8 bw;
+	u8 sta_num;
+	u8 q_matrix_bitmap;
+	struct cl_sta *su_cl_sta_arr[CL_MU_MAX_STA_PER_GROUP];
+	u32 xmem_space;
+	bool sounding_restart_required;
+	struct list_head list;
+};
+
+struct cl_sounding_db {
+	struct workqueue_struct *sounding_wq;
+	u8 num_soundings;
+	u8 cqi_profiles; /* Num of STAs with CQI active sounding */
+	u8 active_profiles; /* Num of STAs with non-CQI active sounding */
+	u8 active_profiles_prev[CL_SOUNDING_STABILITY_TIME];
+	u8 active_profiles_idx;
+	u8 dbg_level;
+	u8 current_interval;
+	u8 last_conf_active_profiles;
+	rwlock_t list_lock;
+	struct list_head head;
+};
+
+struct cl_xmem {
+	u32 total_used;
+	u32 size;
+};
+
+void cl_sounding_init(struct cl_hw *cl_hw);
+void cl_sounding_close(struct cl_hw *cl_hw);
+void cl_sounding_send_request(struct cl_hw *cl_hw, struct cl_sta **cl_sta_arr,
+			      u8 sta_num, bool enable, u8 sounding_type, u8 bw,
+			      void *mu_grp,
+			      u8 q_matrix_bitmap, struct cl_sounding_info *recovery_elem);
+void cl_sounding_switch_profile(struct cl_hw *cl_hw, u8 sta_idx_en, u8 sta_idx_dis);
+void cl_sounding_stop_by_sid(struct cl_hw *cl_hw, u8 sid, bool sounding_restart_check);
+void cl_sounding_maintenance(struct cl_hw *cl_hw);
+u16 cl_sounding_get_interval(struct cl_hw *cl_hw);
+void cl_sounding_recovery(struct cl_hw *cl_hw);
+struct cl_sounding_info *cl_sounding_get_elem(struct cl_hw *cl_hw, u8 sounding_id);
+void cl_sounding_indication(struct cl_hw *cl_hw, struct mm_sounding_ind *ind);
+
+#endif /* CL_SOUNDING_H */
-- 
2.36.1