/* SPDX-License-Identifier: BSD-3-Clause-Clear */ /* * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved. * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved. */ #ifndef ATH12K_HTC_H #define ATH12K_HTC_H #include <linux/kernel.h> #include <linux/list.h> #include <linux/bug.h> #include <linux/skbuff.h> #include <linux/timer.h> struct ath12k_base; #define HTC_HDR_ENDPOINTID … #define HTC_HDR_FLAGS … #define HTC_HDR_PAYLOADLEN … #define HTC_HDR_CONTROLBYTES0 … #define HTC_HDR_CONTROLBYTES1 … #define HTC_HDR_RESERVED … #define HTC_SVC_MSG_SERVICE_ID … #define HTC_SVC_MSG_CONNECTIONFLAGS … #define HTC_SVC_MSG_SERVICEMETALENGTH … #define HTC_READY_MSG_CREDITCOUNT … #define HTC_READY_MSG_CREDITSIZE … #define HTC_READY_MSG_MAXENDPOINTS … #define HTC_READY_EX_MSG_HTCVERSION … #define HTC_READY_EX_MSG_MAXMSGSPERHTCBUNDLE … #define HTC_SVC_RESP_MSG_SERVICEID … #define HTC_SVC_RESP_MSG_STATUS … #define HTC_SVC_RESP_MSG_ENDPOINTID … #define HTC_SVC_RESP_MSG_MAXMSGSIZE … #define HTC_SVC_RESP_MSG_SERVICEMETALENGTH … #define HTC_MSG_MESSAGEID … #define HTC_SETUP_COMPLETE_EX_MSG_SETUPFLAGS … #define HTC_SETUP_COMPLETE_EX_MSG_MAXMSGSPERBUNDLEDRECV … #define HTC_SETUP_COMPLETE_EX_MSG_RSVD0 … #define HTC_SETUP_COMPLETE_EX_MSG_RSVD1 … #define HTC_SETUP_COMPLETE_EX_MSG_RSVD2 … enum ath12k_htc_tx_flags { … }; enum ath12k_htc_rx_flags { … }; struct ath12k_htc_hdr { … } __packed __aligned(…); enum ath12k_htc_msg_id { … }; enum ath12k_htc_version { … }; enum ath12k_htc_conn_flag_threshold_level { … }; #define ATH12K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_MASK … #define ATH12K_HTC_CONN_FLAGS_REDUCE_CREDIT_DRIBBLE … #define ATH12K_HTC_CONN_FLAGS_DISABLE_CREDIT_FLOW_CTRL … #define ATH12K_HTC_CONN_FLAGS_RECV_ALLOC … enum ath12k_htc_conn_svc_status { … }; struct ath12k_htc_ready { … } __packed; struct ath12k_htc_ready_extended { … } __packed; struct ath12k_htc_conn_svc { … } __packed; struct ath12k_htc_conn_svc_resp { … } __packed; struct ath12k_htc_setup_complete_extended { … } __packed; struct ath12k_htc_msg { … } __packed __aligned(…); enum ath12k_htc_record_id { … }; struct ath12k_htc_record_hdr { … } __packed; struct ath12k_htc_credit_report { … } __packed; struct ath12k_htc_record { … } __packed __aligned(…); /* HTC FRAME structure layout draft * * note: the trailer offset is dynamic depending * on payload length. this is only a struct layout draft * *======================================================= * * HTC HEADER * *======================================================= * | * HTC message | payload * (variable length) | (variable length) *======================================================= * * HTC Record * *======================================================= */ enum ath12k_htc_svc_gid { … }; #define SVC … enum ath12k_htc_svc_id { … }; #undef SVC enum ath12k_htc_ep_id { … }; struct ath12k_htc_ep_ops { … }; /* service connection information */ struct ath12k_htc_svc_conn_req { … }; /* service connection response information */ struct ath12k_htc_svc_conn_resp { … }; #define ATH12K_NUM_CONTROL_TX_BUFFERS … #define ATH12K_HTC_MAX_LEN … #define ATH12K_HTC_MAX_CTRL_MSG_LEN … #define ATH12K_HTC_WAIT_TIMEOUT_HZ … #define ATH12K_HTC_CONTROL_BUFFER_SIZE … #define ATH12K_HTC_CONN_SVC_TIMEOUT_HZ … #define ATH12K_HTC_MAX_SERVICE_ALLOC_ENTRIES … struct ath12k_htc_ep { … }; struct ath12k_htc_svc_tx_credits { … }; struct ath12k_htc { … }; int ath12k_htc_init(struct ath12k_base *ar); int ath12k_htc_wait_target(struct ath12k_htc *htc); int ath12k_htc_start(struct ath12k_htc *htc); int ath12k_htc_connect_service(struct ath12k_htc *htc, struct ath12k_htc_svc_conn_req *conn_req, struct ath12k_htc_svc_conn_resp *conn_resp); int ath12k_htc_send(struct ath12k_htc *htc, enum ath12k_htc_ep_id eid, struct sk_buff *packet); struct sk_buff *ath12k_htc_alloc_skb(struct ath12k_base *ar, int size); void ath12k_htc_rx_completion_handler(struct ath12k_base *ar, struct sk_buff *skb); #endif
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