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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>,
        Oleksandr Savchenko <oleksandr.savchenko@celeno.com>,
        Shay Bar <shay.bar@celeno.com>,
        Viktor Barna <viktor.barna@celeno.com>
Subject: [RFC v1 181/256] cl8k: add sounding.h
Date:   Thu, 17 Jun 2021 16:01:08 +0000
Message-Id: <20210617160223.160998-182-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 | 148 ++++++++++++++++++++
 1 file changed, 148 insertions(+)
 create mode 100644 drivers/net/wireless/celeno/cl8k/sounding.h

diff --git a/drivers/net/wireless/celeno/cl8k/sounding.h b/drivers/net/wire=
less/celeno/cl8k/sounding.h
new file mode 100644
index 000000000000..d5d9d4941b23
--- /dev/null
+++ b/drivers/net/wireless/celeno/cl8k/sounding.h
@@ -0,0 +1,148 @@
+/* SPDX-License-Identifier: MIT */
+/* Copyright(c) 2019-2021, Celeno Communications Ltd. */
+
+#ifndef CL_SOUNDING_H
+#define CL_SOUNDING_H
+
+#include <linux/types.h>
+#include "fw/fw_msg.h"
+
+#define SOUNDING_ENABLE                                true
+#define SOUNDING_DISABLE                               false
+#define INVALID_SID                                    0xff
+#define XMEM_SIZE                                      (0x180 << 10) /* 38=
4KB */
+#define CL_SOUNDING_STABILITY_TIME                     5
+#define CL_SOUNDING_FACTOR                             10
+
+#define SOUNDING_FEEDBACK_TYPE_SHIFT                   2
+#define SOUNDING_FEEDBACK_TYPE_MASK                    (BIT(SOUNDING_FEEDB=
ACK_TYPE_SHIFT))
+#define SOUNDING_NG_SHIFT                              1
+#define SOUNDING_NG_MASK                               (BIT(SOUNDING_NG_SH=
IFT))
+#define SOUNDING_MU_CODEBOOK_SIZE_SHIFT                0
+#define SOUNDING_MU_CODEBOOK_SIZE_MASK                 (BIT(SOUNDING_MU_CO=
DEBOOK_SIZE_SHIFT))
+#define SOUNDING_FEEDBACK_TYPE_VAL(fb_type_ng_cb_size) (((fb_type_ng_cb_si=
ze) & \
+                                                         SOUNDING_FEEDBACK=
_TYPE_MASK) >> \
+                                                         SOUNDING_FEEDBACK=
_TYPE_SHIFT)
+#define SOUNDING_NG_VAL(fb_type_ng_cb_size)            (((fb_type_ng_cb_si=
ze) & \
+                                                         SOUNDING_NG_MASK)=
 >> SOUNDING_NG_SHIFT)
+#define SOUNDING_CODEBOOK_SIZE_VAL(fb_type_ng_cb_size) (((fb_type_ng_cb_si=
ze) & \
+                                                         SOUNDING_MU_CODEB=
OOK_SIZE_MASK) >> \
+                                                         SOUNDING_MU_CODEB=
OOK_SIZE_SHIFT)
+
+#define SOUNDING_TYPE_IS_VHT(type)                     ((type) =3D=3D SOUN=
DING_TYPE_VHT_SU || \
+                                                       (type) =3D=3D SOUND=
ING_TYPE_VHT_MU)
+#define SOUNDING_TYPE_IS_CQI(type)                     ((type) =3D=3D SOUN=
DING_TYPE_HE_CQI || \
+                                                       (type) =3D=3D SOUND=
ING_TYPE_HE_CQI_TB)
+
+enum fb_type_ng_cb_size {
+       FEEDBACK_TYPE_SU_NG_4_CODEBOOK_SIZE_4_2 =3D 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 =3D 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 =3D 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 =3D 0,
+       SOUNDING_INTERVAL_COEF_STA_STEP,
+       SOUNDING_INTERVAL_COEF_INTERVAL_STEP,
+       SOUNDING_INTERVAL_COEF_MAX_INTERVAL,
+       SOUNDING_INTERVAL_COEF_MAX
+};
+
+struct cl_hw;
+
+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;
+};
+
+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,
+                             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);
+u8 cl_sounding_get_active_profiles(struct cl_hw *cl_hw);
+void cl_sounding_stop_by_sid(struct cl_hw *cl_hw, u8 sid, bool sounding_re=
start_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 soun=
ding_id);
+void cl_sounding_indication(struct cl_hw *cl_hw, struct mm_sounding_ind *i=
nd);
+int cl_sounding_cli(struct cl_hw *cl_hw, struct cli_params *cli_params);
+
+#endif /* CL_SOUNDING_H */
--
2.30.0

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