/* $OpenBSD: if_athn_usb.h,v 1.10 2018/02/05 09:52:03 stsp Exp $ */ /*- * Copyright (c) 2011 Damien Bergamini * Copyright (c) 2018 Stefan Sperling * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /* Maximum number of STAs firmware can handle. */ #define AR_USB_MAX_STA 8 #define AR_USB_DEFAULT_NF (-95) /* USB requests. */ #define AR_FW_DOWNLOAD 0x30 #define AR_FW_DOWNLOAD_COMP 0x31 /* USB endpoints addresses. */ #define AR_PIPE_TX_DATA (UE_DIR_OUT | 1) #define AR_PIPE_RX_DATA (UE_DIR_IN | 2) #define AR_PIPE_RX_INTR (UE_DIR_IN | 3) #define AR_PIPE_TX_INTR (UE_DIR_OUT | 4) /* Wireless module interface commands. */ #define AR_WMI_CMD_ECHO 0x001 #define AR_WMI_CMD_ACCESS_MEMORY 0x002 #define AR_WMI_GET_FW_VERSION 0x003 #define AR_WMI_CMD_DISABLE_INTR 0x004 #define AR_WMI_CMD_ENABLE_INTR 0x005 #define AR_WMI_CMD_ATH_INIT 0x006 #define AR_WMI_CMD_ABORT_TXQ 0x007 #define AR_WMI_CMD_STOP_TX_DMA 0x008 #define AR_WMI_CMD_ABORT_TX_DMA 0x009 #define AR_WMI_CMD_DRAIN_TXQ 0x00a #define AR_WMI_CMD_DRAIN_TXQ_ALL 0x00b #define AR_WMI_CMD_START_RECV 0x00c #define AR_WMI_CMD_STOP_RECV 0x00d #define AR_WMI_CMD_FLUSH_RECV 0x00e #define AR_WMI_CMD_SET_MODE 0x00f #define AR_WMI_CMD_NODE_CREATE 0x010 #define AR_WMI_CMD_NODE_REMOVE 0x011 #define AR_WMI_CMD_VAP_REMOVE 0x012 #define AR_WMI_CMD_VAP_CREATE 0x013 #define AR_WMI_CMD_REG_READ 0x014 #define AR_WMI_CMD_REG_WRITE 0x015 #define AR_WMI_CMD_RC_STATE_CHANGE 0x016 #define AR_WMI_CMD_RC_RATE_UPDATE 0x017 #define AR_WMI_CMD_TARGET_IC_UPDATE 0x018 #define AR_WMI_CMD_TX_AGGR_ENABLE 0x019 #define AR_WMI_CMD_TGT_DETACH 0x020 #define AR_WMI_CMD_NODE_UPDATE 0x021 #define AR_WMI_CMD_INT_STATS 0x022 #define AR_WMI_CMD_TX_STATS 0x023 #define AR_WMI_CMD_RX_STATS 0x024 #define AR_WMI_CMD_BITRATE_MASK 0x025 #define AR_WMI_CMD_REG_RMW 0x026 /* Wireless module interface events. */ #define AR_WMI_EVT_TGT_RDY 0x001 #define AR_WMI_EVT_SWBA 0x002 #define AR_WMI_EVT_FATAL 0x003 #define AR_WMI_EVT_TXTO 0x004 #define AR_WMI_EVT_BMISS 0x005 #define AR_WMI_EVT_DELBA 0x006 #define AR_WMI_EVT_TXSTATUS 0x007 /* Structure for service AR_SVC_WMI_CONTROL. */ struct ar_wmi_cmd_hdr { uint16_t cmd_id; #define AR_WMI_EVT_FLAG 0x1000 uint16_t seq_no; } __packed; /* Values for AR_WMI_CMD_SET_MODE. */ #define AR_HTC_MODE_11NA 0 #define AR_HTC_MODE_11NG 1 #define AR_MAX_WRITE_COUNT 32 /* Structure for command AR_WMI_CMD_REG_WRITE. */ struct ar_wmi_cmd_reg_write { uint32_t addr; uint32_t val; } __packed; /* Structure for command AR_WMI_CMD_NODE_{CREATE,REMOVE}. */ struct ar_htc_target_sta { uint8_t macaddr[IEEE80211_ADDR_LEN]; uint8_t bssid[IEEE80211_ADDR_LEN]; uint8_t sta_index; uint8_t vif_index; uint8_t is_vif_sta; uint16_t flags; #define AR_HTC_STA_AUTH 0x0001 #define AR_HTC_STA_QOS 0x0002 #define AR_HTC_STA_ERP 0x0004 #define AR_HTC_STA_HT 0x0008 uint16_t htcap; uint16_t maxampdu; uint8_t pad; /* Internal state. */ uint16_t txseqmgmt; uint16_t iv16; uint32_t iv32; void *ni_vap; } __packed; /* Structures for command AR_WMI_CMD_RC_RATE_UPDATE. */ #define AR_HTC_RATE_MAX 30 struct ar_htc_rateset { uint8_t rs_nrates; uint8_t rs_rates[AR_HTC_RATE_MAX]; } __packed; struct ar_htc_target_rate { uint8_t sta_index; uint8_t isnew; uint8_t pad[2]; uint32_t capflags; #define AR_RC_DS_FLAG 0x00000001 #define AR_RC_40_FLAG 0x00000002 #define AR_RC_SGI_FLAG 0x00000004 #define AR_RC_HT_FLAG 0x00000008 #define AR_RC_STBC_FLAG 0x00000030 /* 2 bits */ #define AR_RC_WEP_TKIP_FLAG 0x00000100 struct ar_htc_rateset lg_rates; struct ar_htc_rateset ht_rates; } __packed; /* Structure for command AR_WMI_CMD_TX_AGGR_ENABLE. */ struct ar_htc_target_aggr { uint8_t sta_index; uint8_t tidno; uint8_t aggr_enable; uint8_t padding; } __packed; /* Structure for command AR_WMI_CMD_VAP_CREATE. */ struct ar_htc_target_vif { uint8_t index; uint32_t opmode; #define AR_HTC_M_IBSS 0 #define AR_HTC_M_STA 1 #define AR_HTC_M_WDS 2 #define AR_HTC_M_AHDEMO 3 #define AR_HTC_M_HOSTAP 6 #define AR_HTC_M_MONITOR 8 uint8_t myaddr[IEEE80211_ADDR_LEN]; uint8_t ath_cap; uint16_t rtsthreshold; uint8_t pad; /* Internal state. */ int8_t nodeindex; void *iv_bss; } __packed; /* Structure for command AM_WMI_CMD_TARGET_IC_UPDATE. */ struct ar_htc_cap_target { uint32_t ampdu_limit; uint8_t ampdu_subframes; uint8_t enable_coex; uint8_t txchainmask; uint8_t pad; } __packed; struct ar_wmi_evt_txstatus { uint8_t cookie; /* * Legacy rates are indicated as rate array indices. * HT rates are indicated as MCS indices. */ uint8_t rate; #define AR_HTC_TXSTAT_RATE 0x0f #define AR_HTC_TXSTAT_EPID 0xf0 #define AR_HTC_TXSTAT_EPID_SHIFT 4 uint8_t flags; #define AR_HTC_TXSTAT_ACK 0x01 #define AR_HTC_TXSTAT_FILT 0x02 #define AR_HTC_TXSTAT_RTC_CTS 0x04 #define AR_HTC_TXSTAT_MCS 0x08 #define AR_HTC_TXSTAT_CW40 0x10 #define AR_HTC_TXSTAT_SGI 0x20 } __packed; /* Structure for event AR_WMI_EVT_TXSTATUS. */ #define AR_HTC_MAX_TX_STATUS 12 struct ar_wmi_evt_txstatus_list { uint8_t count; struct ar_wmi_evt_txstatus ts[AR_HTC_MAX_TX_STATUS]; } __packed; /* HTC header. */ struct ar_htc_frame_hdr { uint8_t endpoint_id; uint8_t flags; #define AR_HTC_FLAG_NEED_CREDIT_UPDATE 0x01 #define AR_HTC_FLAG_TRAILER 0x02 #define AR_HTC_FLAG_CREDIT_REDISTRIBUTION 0x03 uint16_t payload_len; uint8_t control[4]; } __packed; /* Structure for HTC enpoint id 0. */ struct ar_htc_msg_hdr { uint16_t msg_id; #define AR_HTC_MSG_READY 0x0001 #define AR_HTC_MSG_CONN_SVC 0x0002 #define AR_HTC_MSG_CONN_SVC_RSP 0x0003 #define AR_HTC_MSG_SETUP_COMPLETE 0x0004 #define AR_HTC_MSG_CONF_PIPE 0x0005 #define AR_HTC_MSG_CONF_PIPE_RSP 0x0006 } __packed; /* Structure for services AR_SVC_WMI_DATA_{VO,VI,BE,BK}. */ struct ar_tx_frame { uint8_t data_type; #define AR_HTC_AMPDU 1 #define AR_HTC_NORMAL 2 uint8_t node_idx; uint8_t vif_idx; uint8_t tid; uint32_t flags; #define AR_HTC_TX_CTSONLY 0x00000001 #define AR_HTC_TX_RTSCTS 0x00000002 #define AR_HTC_TX_USE_MIN_RATE 0x00000100 uint8_t key_type; uint8_t key_idx; uint8_t cookie; uint8_t pad; } __packed; /* Structure for service AR_SVC_WMI_MGMT. */ struct ar_tx_mgmt { uint8_t node_idx; uint8_t vif_idx; uint8_t tid; uint8_t flags; uint8_t key_type; uint8_t key_idx; uint8_t cookie; uint8_t pad; } __packed; /* Structure for service AR_SVC_WMI_BEACON. */ struct ar_tx_bcn { uint8_t len_changed; uint8_t vif_idx; uint16_t rev; } __packed; /* Structure for message AR_HTC_MSG_READY. */ struct ar_htc_msg_ready { uint16_t credits; uint16_t credits_size; uint8_t max_endpoints; uint8_t reserved; } __packed; /* Structure for message AR_HTC_MSG_CONF_PIPE. */ struct ar_htc_msg_config_pipe { uint8_t pipe_id; uint8_t credits; } __packed; /* Structure for message AR_HTC_MSG_CONN_SVC. */ struct ar_htc_msg_conn_svc { uint16_t svc_id; uint16_t conn_flags; uint8_t dl_pipeid; uint8_t ul_pipeid; uint8_t svc_meta_len; uint8_t reserved; } __packed; /* Structure for message AR_HTC_MSG_CONN_SVC_RSP. */ struct ar_htc_msg_conn_svc_rsp { uint16_t svc_id; uint8_t status; #define AR_HTC_SVC_SUCCESS 0 #define AR_HTC_SVC_NOT_FOUND 1 #define AR_HTC_SVC_FAILED 2 #define AR_HTC_SVC_NO_RESOURCES 3 #define AR_HTC_SVC_NO_MORE_EP 4 uint8_t endpoint_id; uint16_t max_msg_len; uint8_t svc_meta_len; uint8_t reserved; } __packed; #define AR_SVC(grp, idx) ((grp) << 8 | (idx)) #define AR_SVC_IDX(svc) ((svc) & 0xff) /* Service groups. */ #define AR_SVC_GRP_RSVD 0 #define AR_SVC_GRP_WMI 1 /* Service identifiers for WMI group. */ #define AR_SVC_WMI_CONTROL AR_SVC(AR_SVC_GRP_WMI, 0) #define AR_SVC_WMI_BEACON AR_SVC(AR_SVC_GRP_WMI, 1) #define AR_SVC_WMI_CAB AR_SVC(AR_SVC_GRP_WMI, 2) #define AR_SVC_WMI_UAPSD AR_SVC(AR_SVC_GRP_WMI, 3) #define AR_SVC_WMI_MGMT AR_SVC(AR_SVC_GRP_WMI, 4) #define AR_SVC_WMI_DATA_VO AR_SVC(AR_SVC_GRP_WMI, 5) #define AR_SVC_WMI_DATA_VI AR_SVC(AR_SVC_GRP_WMI, 6) #define AR_SVC_WMI_DATA_BE AR_SVC(AR_SVC_GRP_WMI, 7) #define AR_SVC_WMI_DATA_BK AR_SVC(AR_SVC_GRP_WMI, 8) struct ar_stream_hdr { uint16_t len; uint16_t tag; #define AR_USB_RX_STREAM_TAG 0x4e00 #define AR_USB_TX_STREAM_TAG 0x697e } __packed __attribute__((aligned(4))); #define AR_MAX_CHAINS 3 /* Rx descriptor. */ struct ar_rx_status { uint64_t rs_tstamp; uint16_t rs_datalen; uint8_t rs_status; uint8_t rs_phyerr; int8_t rs_rssi; int8_t rs_rssi_ctl[AR_MAX_CHAINS]; int8_t rs_rssi_ext[AR_MAX_CHAINS]; uint8_t rs_keyix; uint8_t rs_rate; uint8_t rs_antenna; uint8_t rs_more; uint8_t rs_isaggr; uint8_t rs_moreaggr; uint8_t rs_num_delims; uint8_t rs_flags; #define AR_RXS_FLAG_GI 0x04 #define AR_RXS_FLAG_2040 0x08 uint8_t rs_dummy; uint32_t rs_evm[AR_MAX_CHAINS]; } __packed __attribute__((aligned(4))); /* * Driver definitions. */ #define ATHN_USB_RX_LIST_COUNT 1 #define ATHN_USB_TX_LIST_COUNT (8 + 1) /* NB: +1 for beacons. */ #define ATHN_USB_HOST_CMD_RING_COUNT 32 #define ATHN_USB_RXBUFSZ (8 * 1024) /* XXX Linux 16K */ #define ATHN_USB_TXBUFSZ \ ((sizeof(struct ar_stream_hdr) + \ sizeof(struct ar_htc_frame_hdr) + \ sizeof(struct ar_tx_frame) + \ IEEE80211_MAX_LEN + 3) & ~3) #define ATHN_USB_TXCMDSZ 512 #define ATHN_USB_TX_TIMEOUT 5000 /* ms */ #define ATHN_USB_CMD_TIMEOUT 1000 /* ms */ struct athn_usb_softc; struct athn_usb_rx_stream { struct mbuf *m; int moff; int left; }; struct athn_usb_rx_data { struct athn_usb_softc *sc; struct usbd_xfer *xfer; uint8_t *buf; }; struct athn_usb_tx_data { struct athn_usb_softc *sc; struct usbd_xfer *xfer; uint8_t *buf; TAILQ_ENTRY(athn_usb_tx_data) next; }; struct athn_usb_host_cmd { void (*cb)(struct athn_usb_softc *, void *); uint8_t data[256]; }; struct athn_usb_cmd_newstate { enum ieee80211_state state; int arg; }; struct athn_usb_cmd_key { struct ieee80211_node *ni; struct ieee80211_key *key; }; struct athn_usb_aggr_cmd { uint8_t sta_index; uint8_t tid; }; struct athn_usb_host_cmd_ring { struct athn_usb_host_cmd cmd[ATHN_USB_HOST_CMD_RING_COUNT]; int cur; int next; int queued; }; struct athn_usb_softc { struct athn_softc sc_sc; #define usb_dev sc_sc.sc_dev int sc_athn_attached; /* USB specific goo. */ struct usbd_device *sc_udev; struct usbd_interface *sc_iface; struct usb_task sc_task; u_int flags; #define ATHN_USB_FLAG_AR7010 0x01 struct athn_usb_rx_stream rx_stream; struct usbd_pipe *tx_data_pipe; struct usbd_pipe *rx_data_pipe; struct usbd_pipe *rx_intr_pipe; struct usbd_pipe *tx_intr_pipe; uint8_t *ibuf; size_t ibuflen; struct ar_wmi_cmd_reg_write wbuf[AR_MAX_WRITE_COUNT]; int wcount; uint16_t wmi_seq_no; uint16_t wait_cmd_id; uint16_t wait_msg_id; void *obuf; struct ar_htc_msg_conn_svc_rsp *msg_conn_svc_rsp; struct athn_usb_host_cmd_ring cmdq; struct athn_usb_rx_data rx_data[ATHN_USB_RX_LIST_COUNT]; struct athn_usb_tx_data tx_data[ATHN_USB_TX_LIST_COUNT]; TAILQ_HEAD(, athn_usb_tx_data) tx_free_list; struct athn_usb_tx_data tx_cmd; struct athn_usb_tx_data *tx_bcn; uint8_t ep_ctrl; uint8_t ep_bcn; uint8_t ep_cab; uint8_t ep_uapsd; uint8_t ep_mgmt; uint8_t ep_data[EDCA_NUM_AC]; /* * Firmware cannot handle more than 8 STAs. * We use a bitmask to keep track of available slots in the firmware's * node array. A 1 bit at index N, as determined by ffs(3), means the * slot at this index is available. */ uint8_t free_node_slots; void (*sc_node_free)(struct ieee80211com *, struct ieee80211_node *); };