| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Kalle Valo | 1032 | 100.00% | 1 | 100.00% |
| Total | 1032 | 1 |
/* SPDX-License-Identifier: BSD-3-Clause-Clear */ /* * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved. */ #ifndef ATH11K_HTC_H #define ATH11K_HTC_H #include <linux/kernel.h> #include <linux/list.h> #include <linux/bug.h> #include <linux/skbuff.h> #include <linux/timer.h> struct ath11k_base; #define HTC_HDR_ENDPOINTID GENMASK(7, 0) #define HTC_HDR_FLAGS GENMASK(15, 8) #define HTC_HDR_PAYLOADLEN GENMASK(31, 16) #define HTC_HDR_CONTROLBYTES0 GENMASK(7, 0) #define HTC_HDR_CONTROLBYTES1 GENMASK(15, 8) #define HTC_HDR_RESERVED GENMASK(31, 16) #define HTC_SVC_MSG_SERVICE_ID GENMASK(31, 16) #define HTC_SVC_MSG_CONNECTIONFLAGS GENMASK(15, 0) #define HTC_SVC_MSG_SERVICEMETALENGTH GENMASK(23, 16) #define HTC_READY_MSG_CREDITCOUNT GENMASK(31, 16) #define HTC_READY_MSG_CREDITSIZE GENMASK(15, 0) #define HTC_READY_MSG_MAXENDPOINTS GENMASK(23, 16) #define HTC_READY_EX_MSG_HTCVERSION GENMASK(7, 0) #define HTC_READY_EX_MSG_MAXMSGSPERHTCBUNDLE GENMASK(15, 8) #define HTC_SVC_RESP_MSG_SERVICEID GENMASK(31, 16) #define HTC_SVC_RESP_MSG_STATUS GENMASK(7, 0) #define HTC_SVC_RESP_MSG_ENDPOINTID GENMASK(15, 8) #define HTC_SVC_RESP_MSG_MAXMSGSIZE GENMASK(31, 16) #define HTC_SVC_RESP_MSG_SERVICEMETALENGTH GENMASK(7, 0) #define HTC_MSG_MESSAGEID GENMASK(15, 0) #define HTC_SETUP_COMPLETE_EX_MSG_SETUPFLAGS GENMASK(31, 0) #define HTC_SETUP_COMPLETE_EX_MSG_MAXMSGSPERBUNDLEDRECV GENMASK(7, 0) #define HTC_SETUP_COMPLETE_EX_MSG_RSVD0 GENMASK(15, 8) #define HTC_SETUP_COMPLETE_EX_MSG_RSVD1 GENMASK(23, 16) #define HTC_SETUP_COMPLETE_EX_MSG_RSVD2 GENMASK(31, 24) enum ath11k_htc_tx_flags { ATH11K_HTC_FLAG_NEED_CREDIT_UPDATE = 0x01, ATH11K_HTC_FLAG_SEND_BUNDLE = 0x02 }; enum ath11k_htc_rx_flags { ATH11K_HTC_FLAG_TRAILER_PRESENT = 0x02, ATH11K_HTC_FLAG_BUNDLE_MASK = 0xF0 }; struct ath11k_htc_hdr { u32 htc_info; u32 ctrl_info; } __packed __aligned(4); enum ath11k_htc_msg_id { ATH11K_HTC_MSG_READY_ID = 1, ATH11K_HTC_MSG_CONNECT_SERVICE_ID = 2, ATH11K_HTC_MSG_CONNECT_SERVICE_RESP_ID = 3, ATH11K_HTC_MSG_SETUP_COMPLETE_ID = 4, ATH11K_HTC_MSG_SETUP_COMPLETE_EX_ID = 5, ATH11K_HTC_MSG_SEND_SUSPEND_COMPLETE = 6 }; enum ath11k_htc_version { ATH11K_HTC_VERSION_2P0 = 0x00, /* 2.0 */ ATH11K_HTC_VERSION_2P1 = 0x01, /* 2.1 */ }; #define ATH11K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_MASK GENMASK(1, 0) #define ATH11K_HTC_CONN_FLAGS_RECV_ALLOC GENMASK(15, 8) enum ath11k_htc_conn_flags { ATH11K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_ONE_FOURTH = 0x0, ATH11K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_ONE_HALF = 0x1, ATH11K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_THREE_FOURTHS = 0x2, ATH11K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_UNITY = 0x3, ATH11K_HTC_CONN_FLAGS_REDUCE_CREDIT_DRIBBLE = 1 << 2, ATH11K_HTC_CONN_FLAGS_DISABLE_CREDIT_FLOW_CTRL = 1 << 3 }; enum ath11k_htc_conn_svc_status { ATH11K_HTC_CONN_SVC_STATUS_SUCCESS = 0, ATH11K_HTC_CONN_SVC_STATUS_NOT_FOUND = 1, ATH11K_HTC_CONN_SVC_STATUS_FAILED = 2, ATH11K_HTC_CONN_SVC_STATUS_NO_RESOURCES = 3, ATH11K_HTC_CONN_SVC_STATUS_NO_MORE_EP = 4 }; struct ath11k_htc_ready { u32 id_credit_count; u32 size_ep; } __packed; struct ath11k_htc_ready_extended { struct ath11k_htc_ready base; u32 ver_bundle; } __packed; struct ath11k_htc_conn_svc { u32 msg_svc_id; u32 flags_len; } __packed; struct ath11k_htc_conn_svc_resp { u32 msg_svc_id; u32 flags_len; u32 svc_meta_pad; } __packed; struct ath11k_htc_setup_complete_extended { u32 msg_id; u32 flags; u32 max_msgs_per_bundled_recv; } __packed; struct ath11k_htc_msg { u32 msg_svc_id; u32 flags_len; } __packed __aligned(4); enum ath11k_htc_record_id { ATH11K_HTC_RECORD_NULL = 0, ATH11K_HTC_RECORD_CREDITS = 1 }; struct ath11k_htc_record_hdr { u8 id; /* @enum ath11k_htc_record_id */ u8 len; u8 pad0; u8 pad1; } __packed; struct ath11k_htc_credit_report { u8 eid; /* @enum ath11k_htc_ep_id */ u8 credits; u8 pad0; u8 pad1; } __packed; struct ath11k_htc_record { struct ath11k_htc_record_hdr hdr; union { struct ath11k_htc_credit_report credit_report[0]; u8 pauload[0]; }; } __packed __aligned(4); /* note: the trailer offset is dynamic depending * on payload length. this is only a struct layout draft */ struct ath11k_htc_frame { struct ath11k_htc_hdr hdr; union { struct ath11k_htc_msg msg; u8 payload[0]; }; struct ath11k_htc_record trailer[0]; } __packed __aligned(4); enum ath11k_htc_svc_gid { ATH11K_HTC_SVC_GRP_RSVD = 0, ATH11K_HTC_SVC_GRP_WMI = 1, ATH11K_HTC_SVC_GRP_NMI = 2, ATH11K_HTC_SVC_GRP_HTT = 3, ATH11K_HTC_SVC_GRP_CFG = 4, ATH11K_HTC_SVC_GRP_IPA = 5, ATH11K_HTC_SVC_GRP_PKTLOG = 6, ATH11K_HTC_SVC_GRP_TEST = 254, ATH11K_HTC_SVC_GRP_LAST = 255, }; #define SVC(group, idx) \ (int)(((int)(group) << 8) | (int)(idx)) enum ath11k_htc_svc_id { /* NOTE: service ID of 0x0000 is reserved and should never be used */ ATH11K_HTC_SVC_ID_RESERVED = 0x0000, ATH11K_HTC_SVC_ID_UNUSED = ATH11K_HTC_SVC_ID_RESERVED, ATH11K_HTC_SVC_ID_RSVD_CTRL = SVC(ATH11K_HTC_SVC_GRP_RSVD, 1), ATH11K_HTC_SVC_ID_WMI_CONTROL = SVC(ATH11K_HTC_SVC_GRP_WMI, 0), ATH11K_HTC_SVC_ID_WMI_DATA_BE = SVC(ATH11K_HTC_SVC_GRP_WMI, 1), ATH11K_HTC_SVC_ID_WMI_DATA_BK = SVC(ATH11K_HTC_SVC_GRP_WMI, 2), ATH11K_HTC_SVC_ID_WMI_DATA_VI = SVC(ATH11K_HTC_SVC_GRP_WMI, 3), ATH11K_HTC_SVC_ID_WMI_DATA_VO = SVC(ATH11K_HTC_SVC_GRP_WMI, 4), ATH11K_HTC_SVC_ID_WMI_CONTROL_MAC1 = SVC(ATH11K_HTC_SVC_GRP_WMI, 5), ATH11K_HTC_SVC_ID_WMI_CONTROL_MAC2 = SVC(ATH11K_HTC_SVC_GRP_WMI, 6), ATH11K_HTC_SVC_ID_NMI_CONTROL = SVC(ATH11K_HTC_SVC_GRP_NMI, 0), ATH11K_HTC_SVC_ID_NMI_DATA = SVC(ATH11K_HTC_SVC_GRP_NMI, 1), ATH11K_HTC_SVC_ID_HTT_DATA_MSG = SVC(ATH11K_HTC_SVC_GRP_HTT, 0), /* raw stream service (i.e. flash, tcmd, calibration apps) */ ATH11K_HTC_SVC_ID_TEST_RAW_STREAMS = SVC(ATH11K_HTC_SVC_GRP_TEST, 0), ATH11K_HTC_SVC_ID_IPA_TX = SVC(ATH11K_HTC_SVC_GRP_IPA, 0), ATH11K_HTC_SVC_ID_PKT_LOG = SVC(ATH11K_HTC_SVC_GRP_PKTLOG, 0), }; #undef SVC enum ath11k_htc_ep_id { ATH11K_HTC_EP_UNUSED = -1, ATH11K_HTC_EP_0 = 0, ATH11K_HTC_EP_1 = 1, ATH11K_HTC_EP_2, ATH11K_HTC_EP_3, ATH11K_HTC_EP_4, ATH11K_HTC_EP_5, ATH11K_HTC_EP_6, ATH11K_HTC_EP_7, ATH11K_HTC_EP_8, ATH11K_HTC_EP_COUNT, }; struct ath11k_htc_ops { void (*target_send_suspend_complete)(struct ath11k_base *ar); }; struct ath11k_htc_ep_ops { void (*ep_tx_complete)(struct ath11k_base *, struct sk_buff *); void (*ep_rx_complete)(struct ath11k_base *, struct sk_buff *); void (*ep_tx_credits)(struct ath11k_base *); }; /* service connection information */ struct ath11k_htc_svc_conn_req { u16 service_id; struct ath11k_htc_ep_ops ep_ops; int max_send_queue_depth; }; /* service connection response information */ struct ath11k_htc_svc_conn_resp { u8 buffer_len; u8 actual_len; enum ath11k_htc_ep_id eid; unsigned int max_msg_len; u8 connect_resp_code; }; #define ATH11K_NUM_CONTROL_TX_BUFFERS 2 #define ATH11K_HTC_MAX_LEN 4096 #define ATH11K_HTC_MAX_CTRL_MSG_LEN 256 #define ATH11K_HTC_WAIT_TIMEOUT_HZ (1 * HZ) #define ATH11K_HTC_CONTROL_BUFFER_SIZE (ATH11K_HTC_MAX_CTRL_MSG_LEN + \ sizeof(struct ath11k_htc_hdr)) #define ATH11K_HTC_CONN_SVC_TIMEOUT_HZ (1 * HZ) #define ATH11K_HTC_MAX_SERVICE_ALLOC_ENTRIES 8 struct ath11k_htc_ep { struct ath11k_htc *htc; enum ath11k_htc_ep_id eid; enum ath11k_htc_svc_id service_id; struct ath11k_htc_ep_ops ep_ops; int max_tx_queue_depth; int max_ep_message_len; u8 ul_pipe_id; u8 dl_pipe_id; u8 seq_no; /* for debugging */ int tx_credits; bool tx_credit_flow_enabled; }; struct ath11k_htc_svc_tx_credits { u16 service_id; u8 credit_allocation; }; struct ath11k_htc { struct ath11k_base *ab; struct ath11k_htc_ep endpoint[ATH11K_HTC_EP_COUNT]; /* protects endpoints */ spinlock_t tx_lock; struct ath11k_htc_ops htc_ops; u8 control_resp_buffer[ATH11K_HTC_MAX_CTRL_MSG_LEN]; int control_resp_len; struct completion ctl_resp; int total_transmit_credits; struct ath11k_htc_svc_tx_credits service_alloc_table[ATH11K_HTC_MAX_SERVICE_ALLOC_ENTRIES]; int target_credit_size; u8 wmi_ep_count; }; int ath11k_htc_init(struct ath11k_base *ar); int ath11k_htc_wait_target(struct ath11k_htc *htc); int ath11k_htc_start(struct ath11k_htc *htc); int ath11k_htc_connect_service(struct ath11k_htc *htc, struct ath11k_htc_svc_conn_req *conn_req, struct ath11k_htc_svc_conn_resp *conn_resp); int ath11k_htc_send(struct ath11k_htc *htc, enum ath11k_htc_ep_id eid, struct sk_buff *packet); struct sk_buff *ath11k_htc_alloc_skb(struct ath11k_base *ar, int size); void ath11k_htc_rx_completion_handler(struct ath11k_base *ar, struct sk_buff *skb); #endif
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