LXR linux/drivers/net/wireless/ath/ath10k/htt.c

   1/*
   2 * Copyright (c) 2005-2011 Atheros Communications Inc.
   3 * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
   4 *
   5 * Permission to use, copy, modify, and/or distribute this software for any
   6 * purpose with or without fee is hereby granted, provided that the above
   7 * copyright notice and this permission notice appear in all copies.
   8 *
   9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16 */
  17
  18#include <linux/slab.h>
  19#include <linux/if_ether.h>
  20
  21#include "htt.h"
  22#include "core.h"
  23#include "debug.h"
  24
  25static const enum htt_t2h_msg_type htt_main_t2h_msg_types[] = {
  26        [HTT_MAIN_T2H_MSG_TYPE_VERSION_CONF] = HTT_T2H_MSG_TYPE_VERSION_CONF,
  27        [HTT_MAIN_T2H_MSG_TYPE_RX_IND] = HTT_T2H_MSG_TYPE_RX_IND,
  28        [HTT_MAIN_T2H_MSG_TYPE_RX_FLUSH] = HTT_T2H_MSG_TYPE_RX_FLUSH,
  29        [HTT_MAIN_T2H_MSG_TYPE_PEER_MAP] = HTT_T2H_MSG_TYPE_PEER_MAP,
  30        [HTT_MAIN_T2H_MSG_TYPE_PEER_UNMAP] = HTT_T2H_MSG_TYPE_PEER_UNMAP,
  31        [HTT_MAIN_T2H_MSG_TYPE_RX_ADDBA] = HTT_T2H_MSG_TYPE_RX_ADDBA,
  32        [HTT_MAIN_T2H_MSG_TYPE_RX_DELBA] = HTT_T2H_MSG_TYPE_RX_DELBA,
  33        [HTT_MAIN_T2H_MSG_TYPE_TX_COMPL_IND] = HTT_T2H_MSG_TYPE_TX_COMPL_IND,
  34        [HTT_MAIN_T2H_MSG_TYPE_PKTLOG] = HTT_T2H_MSG_TYPE_PKTLOG,
  35        [HTT_MAIN_T2H_MSG_TYPE_STATS_CONF] = HTT_T2H_MSG_TYPE_STATS_CONF,
  36        [HTT_MAIN_T2H_MSG_TYPE_RX_FRAG_IND] = HTT_T2H_MSG_TYPE_RX_FRAG_IND,
  37        [HTT_MAIN_T2H_MSG_TYPE_SEC_IND] = HTT_T2H_MSG_TYPE_SEC_IND,
  38        [HTT_MAIN_T2H_MSG_TYPE_TX_INSPECT_IND] =
  39                HTT_T2H_MSG_TYPE_TX_INSPECT_IND,
  40        [HTT_MAIN_T2H_MSG_TYPE_MGMT_TX_COMPL_IND] =
  41                HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION,
  42        [HTT_MAIN_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND] =
  43                HTT_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND,
  44        [HTT_MAIN_T2H_MSG_TYPE_RX_PN_IND] = HTT_T2H_MSG_TYPE_RX_PN_IND,
  45        [HTT_MAIN_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND] =
  46                HTT_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND,
  47        [HTT_MAIN_T2H_MSG_TYPE_TEST] = HTT_T2H_MSG_TYPE_TEST,
  48};
  49
  50static const enum htt_t2h_msg_type htt_10x_t2h_msg_types[] = {
  51        [HTT_10X_T2H_MSG_TYPE_VERSION_CONF] = HTT_T2H_MSG_TYPE_VERSION_CONF,
  52        [HTT_10X_T2H_MSG_TYPE_RX_IND] = HTT_T2H_MSG_TYPE_RX_IND,
  53        [HTT_10X_T2H_MSG_TYPE_RX_FLUSH] = HTT_T2H_MSG_TYPE_RX_FLUSH,
  54        [HTT_10X_T2H_MSG_TYPE_PEER_MAP] = HTT_T2H_MSG_TYPE_PEER_MAP,
  55        [HTT_10X_T2H_MSG_TYPE_PEER_UNMAP] = HTT_T2H_MSG_TYPE_PEER_UNMAP,
  56        [HTT_10X_T2H_MSG_TYPE_RX_ADDBA] = HTT_T2H_MSG_TYPE_RX_ADDBA,
  57        [HTT_10X_T2H_MSG_TYPE_RX_DELBA] = HTT_T2H_MSG_TYPE_RX_DELBA,
  58        [HTT_10X_T2H_MSG_TYPE_TX_COMPL_IND] = HTT_T2H_MSG_TYPE_TX_COMPL_IND,
  59        [HTT_10X_T2H_MSG_TYPE_PKTLOG] = HTT_T2H_MSG_TYPE_PKTLOG,
  60        [HTT_10X_T2H_MSG_TYPE_STATS_CONF] = HTT_T2H_MSG_TYPE_STATS_CONF,
  61        [HTT_10X_T2H_MSG_TYPE_RX_FRAG_IND] = HTT_T2H_MSG_TYPE_RX_FRAG_IND,
  62        [HTT_10X_T2H_MSG_TYPE_SEC_IND] = HTT_T2H_MSG_TYPE_SEC_IND,
  63        [HTT_10X_T2H_MSG_TYPE_RC_UPDATE_IND] = HTT_T2H_MSG_TYPE_RC_UPDATE_IND,
  64        [HTT_10X_T2H_MSG_TYPE_TX_INSPECT_IND] = HTT_T2H_MSG_TYPE_TX_INSPECT_IND,
  65        [HTT_10X_T2H_MSG_TYPE_TEST] = HTT_T2H_MSG_TYPE_TEST,
  66        [HTT_10X_T2H_MSG_TYPE_CHAN_CHANGE] = HTT_T2H_MSG_TYPE_CHAN_CHANGE,
  67        [HTT_10X_T2H_MSG_TYPE_AGGR_CONF] = HTT_T2H_MSG_TYPE_AGGR_CONF,
  68        [HTT_10X_T2H_MSG_TYPE_STATS_NOUPLOAD] = HTT_T2H_MSG_TYPE_STATS_NOUPLOAD,
  69        [HTT_10X_T2H_MSG_TYPE_MGMT_TX_COMPL_IND] =
  70                HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION,
  71};
  72
  73static const enum htt_t2h_msg_type htt_tlv_t2h_msg_types[] = {
  74        [HTT_TLV_T2H_MSG_TYPE_VERSION_CONF] = HTT_T2H_MSG_TYPE_VERSION_CONF,
  75        [HTT_TLV_T2H_MSG_TYPE_RX_IND] = HTT_T2H_MSG_TYPE_RX_IND,
  76        [HTT_TLV_T2H_MSG_TYPE_RX_FLUSH] = HTT_T2H_MSG_TYPE_RX_FLUSH,
  77        [HTT_TLV_T2H_MSG_TYPE_PEER_MAP] = HTT_T2H_MSG_TYPE_PEER_MAP,
  78        [HTT_TLV_T2H_MSG_TYPE_PEER_UNMAP] = HTT_T2H_MSG_TYPE_PEER_UNMAP,
  79        [HTT_TLV_T2H_MSG_TYPE_RX_ADDBA] = HTT_T2H_MSG_TYPE_RX_ADDBA,
  80        [HTT_TLV_T2H_MSG_TYPE_RX_DELBA] = HTT_T2H_MSG_TYPE_RX_DELBA,
  81        [HTT_TLV_T2H_MSG_TYPE_TX_COMPL_IND] = HTT_T2H_MSG_TYPE_TX_COMPL_IND,
  82        [HTT_TLV_T2H_MSG_TYPE_PKTLOG] = HTT_T2H_MSG_TYPE_PKTLOG,
  83        [HTT_TLV_T2H_MSG_TYPE_STATS_CONF] = HTT_T2H_MSG_TYPE_STATS_CONF,
  84        [HTT_TLV_T2H_MSG_TYPE_RX_FRAG_IND] = HTT_T2H_MSG_TYPE_RX_FRAG_IND,
  85        [HTT_TLV_T2H_MSG_TYPE_SEC_IND] = HTT_T2H_MSG_TYPE_SEC_IND,
  86        [HTT_TLV_T2H_MSG_TYPE_RC_UPDATE_IND] = HTT_T2H_MSG_TYPE_RC_UPDATE_IND,
  87        [HTT_TLV_T2H_MSG_TYPE_TX_INSPECT_IND] = HTT_T2H_MSG_TYPE_TX_INSPECT_IND,
  88        [HTT_TLV_T2H_MSG_TYPE_MGMT_TX_COMPL_IND] =
  89                HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION,
  90        [HTT_TLV_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND] =
  91                HTT_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND,
  92        [HTT_TLV_T2H_MSG_TYPE_RX_PN_IND] = HTT_T2H_MSG_TYPE_RX_PN_IND,
  93        [HTT_TLV_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND] =
  94                HTT_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND,
  95        [HTT_TLV_T2H_MSG_TYPE_RX_IN_ORD_PADDR_IND] =
  96                HTT_T2H_MSG_TYPE_RX_IN_ORD_PADDR_IND,
  97        [HTT_TLV_T2H_MSG_TYPE_WDI_IPA_OP_RESPONSE] =
  98                HTT_T2H_MSG_TYPE_WDI_IPA_OP_RESPONSE,
  99        [HTT_TLV_T2H_MSG_TYPE_CHAN_CHANGE] = HTT_T2H_MSG_TYPE_CHAN_CHANGE,
 100        [HTT_TLV_T2H_MSG_TYPE_RX_OFLD_PKT_ERR] =
 101                HTT_T2H_MSG_TYPE_RX_OFLD_PKT_ERR,
 102        [HTT_TLV_T2H_MSG_TYPE_TEST] = HTT_T2H_MSG_TYPE_TEST,
 103};
 104
 105static const enum htt_t2h_msg_type htt_10_4_t2h_msg_types[] = {
 106        [HTT_10_4_T2H_MSG_TYPE_VERSION_CONF] = HTT_T2H_MSG_TYPE_VERSION_CONF,
 107        [HTT_10_4_T2H_MSG_TYPE_RX_IND] = HTT_T2H_MSG_TYPE_RX_IND,
 108        [HTT_10_4_T2H_MSG_TYPE_RX_FLUSH] = HTT_T2H_MSG_TYPE_RX_FLUSH,
 109        [HTT_10_4_T2H_MSG_TYPE_PEER_MAP] = HTT_T2H_MSG_TYPE_PEER_MAP,
 110        [HTT_10_4_T2H_MSG_TYPE_PEER_UNMAP] = HTT_T2H_MSG_TYPE_PEER_UNMAP,
 111        [HTT_10_4_T2H_MSG_TYPE_RX_ADDBA] = HTT_T2H_MSG_TYPE_RX_ADDBA,
 112        [HTT_10_4_T2H_MSG_TYPE_RX_DELBA] = HTT_T2H_MSG_TYPE_RX_DELBA,
 113        [HTT_10_4_T2H_MSG_TYPE_TX_COMPL_IND] = HTT_T2H_MSG_TYPE_TX_COMPL_IND,
 114        [HTT_10_4_T2H_MSG_TYPE_PKTLOG] = HTT_T2H_MSG_TYPE_PKTLOG,
 115        [HTT_10_4_T2H_MSG_TYPE_STATS_CONF] = HTT_T2H_MSG_TYPE_STATS_CONF,
 116        [HTT_10_4_T2H_MSG_TYPE_RX_FRAG_IND] = HTT_T2H_MSG_TYPE_RX_FRAG_IND,
 117        [HTT_10_4_T2H_MSG_TYPE_SEC_IND] = HTT_T2H_MSG_TYPE_SEC_IND,
 118        [HTT_10_4_T2H_MSG_TYPE_RC_UPDATE_IND] = HTT_T2H_MSG_TYPE_RC_UPDATE_IND,
 119        [HTT_10_4_T2H_MSG_TYPE_TX_INSPECT_IND] =
 120                                HTT_T2H_MSG_TYPE_TX_INSPECT_IND,
 121        [HTT_10_4_T2H_MSG_TYPE_MGMT_TX_COMPL_IND] =
 122                                HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION,
 123        [HTT_10_4_T2H_MSG_TYPE_CHAN_CHANGE] = HTT_T2H_MSG_TYPE_CHAN_CHANGE,
 124        [HTT_10_4_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND] =
 125                                HTT_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND,
 126        [HTT_10_4_T2H_MSG_TYPE_RX_PN_IND] = HTT_T2H_MSG_TYPE_RX_PN_IND,
 127        [HTT_10_4_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND] =
 128                                HTT_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND,
 129        [HTT_10_4_T2H_MSG_TYPE_TEST] = HTT_T2H_MSG_TYPE_TEST,
 130        [HTT_10_4_T2H_MSG_TYPE_EN_STATS] = HTT_T2H_MSG_TYPE_EN_STATS,
 131        [HTT_10_4_T2H_MSG_TYPE_AGGR_CONF] = HTT_T2H_MSG_TYPE_AGGR_CONF,
 132        [HTT_10_4_T2H_MSG_TYPE_TX_FETCH_IND] =
 133                                HTT_T2H_MSG_TYPE_TX_FETCH_IND,
 134        [HTT_10_4_T2H_MSG_TYPE_TX_FETCH_CONFIRM] =
 135                                HTT_T2H_MSG_TYPE_TX_FETCH_CONFIRM,
 136        [HTT_10_4_T2H_MSG_TYPE_STATS_NOUPLOAD] =
 137                                HTT_T2H_MSG_TYPE_STATS_NOUPLOAD,
 138        [HTT_10_4_T2H_MSG_TYPE_TX_MODE_SWITCH_IND] =
 139                                HTT_T2H_MSG_TYPE_TX_MODE_SWITCH_IND,
 140};
 141
 142int ath10k_htt_connect(struct ath10k_htt *htt)
 143{
 144        struct ath10k_htc_svc_conn_req conn_req;
 145        struct ath10k_htc_svc_conn_resp conn_resp;
 146        int status;
 147
 148        memset(&conn_req, 0, sizeof(conn_req));
 149        memset(&conn_resp, 0, sizeof(conn_resp));
 150
 151        conn_req.ep_ops.ep_tx_complete = ath10k_htt_htc_tx_complete;
 152        conn_req.ep_ops.ep_rx_complete = ath10k_htt_t2h_msg_handler;
 153
 154        /* connect to control service */
 155        conn_req.service_id = ATH10K_HTC_SVC_ID_HTT_DATA_MSG;
 156
 157        status = ath10k_htc_connect_service(&htt->ar->htc, &conn_req,
 158                                            &conn_resp);
 159
 160        if (status)
 161                return status;
 162
 163        htt->eid = conn_resp.eid;
 164
 165        return 0;
 166}
 167
 168int ath10k_htt_init(struct ath10k *ar)
 169{
 170        struct ath10k_htt *htt = &ar->htt;
 171
 172        htt->ar = ar;
 173
 174        /*
 175         * Prefetch enough data to satisfy target
 176         * classification engine.
 177         * This is for LL chips. HL chips will probably
 178         * transfer all frame in the tx fragment.
 179         */
 180        htt->prefetch_len =
 181                36 + /* 802.11 + qos + ht */
 182                4 + /* 802.1q */
 183                8 + /* llc snap */
 184                2; /* ip4 dscp or ip6 priority */
 185
 186        switch (ar->htt.op_version) {
 187        case ATH10K_FW_HTT_OP_VERSION_10_4:
 188                ar->htt.t2h_msg_types = htt_10_4_t2h_msg_types;
 189                ar->htt.t2h_msg_types_max = HTT_10_4_T2H_NUM_MSGS;
 190                break;
 191        case ATH10K_FW_HTT_OP_VERSION_10_1:
 192                ar->htt.t2h_msg_types = htt_10x_t2h_msg_types;
 193                ar->htt.t2h_msg_types_max = HTT_10X_T2H_NUM_MSGS;
 194                break;
 195        case ATH10K_FW_HTT_OP_VERSION_TLV:
 196                ar->htt.t2h_msg_types = htt_tlv_t2h_msg_types;
 197                ar->htt.t2h_msg_types_max = HTT_TLV_T2H_NUM_MSGS;
 198                break;
 199        case ATH10K_FW_HTT_OP_VERSION_MAIN:
 200                ar->htt.t2h_msg_types = htt_main_t2h_msg_types;
 201                ar->htt.t2h_msg_types_max = HTT_MAIN_T2H_NUM_MSGS;
 202                break;
 203        case ATH10K_FW_HTT_OP_VERSION_MAX:
 204        case ATH10K_FW_HTT_OP_VERSION_UNSET:
 205                WARN_ON(1);
 206                return -EINVAL;
 207        }
 208        return 0;
 209}
 210
 211#define HTT_TARGET_VERSION_TIMEOUT_HZ (3*HZ)
 212
 213static int ath10k_htt_verify_version(struct ath10k_htt *htt)
 214{
 215        struct ath10k *ar = htt->ar;
 216
 217        ath10k_dbg(ar, ATH10K_DBG_BOOT, "htt target version %d.%d\n",
 218                   htt->target_version_major, htt->target_version_minor);
 219
 220        if (htt->target_version_major != 2 &&
 221            htt->target_version_major != 3) {
 222                ath10k_err(ar, "unsupported htt major version %d. supported versions are 2 and 3\n",
 223                           htt->target_version_major);
 224                return -ENOTSUPP;
 225        }
 226
 227        return 0;
 228}
 229
 230int ath10k_htt_setup(struct ath10k_htt *htt)
 231{
 232        struct ath10k *ar = htt->ar;
 233        int status;
 234
 235        init_completion(&htt->target_version_received);
 236
 237        status = ath10k_htt_h2t_ver_req_msg(htt);
 238        if (status)
 239                return status;
 240
 241        status = wait_for_completion_timeout(&htt->target_version_received,
 242                                             HTT_TARGET_VERSION_TIMEOUT_HZ);
 243        if (status == 0) {
 244                ath10k_warn(ar, "htt version request timed out\n");
 245                return -ETIMEDOUT;
 246        }
 247
 248        status = ath10k_htt_verify_version(htt);
 249        if (status) {
 250                ath10k_warn(ar, "failed to verify htt version: %d\n",
 251                            status);
 252                return status;
 253        }
 254
 255        status = ath10k_htt_send_frag_desc_bank_cfg(htt);
 256        if (status)
 257                return status;
 258
 259        status = ath10k_htt_send_rx_ring_cfg_ll(htt);
 260        if (status) {
 261                ath10k_warn(ar, "failed to setup rx ring: %d\n",
 262                            status);
 263                return status;
 264        }
 265
 266        status = ath10k_htt_h2t_aggr_cfg_msg(htt,
 267                                             htt->max_num_ampdu,
 268                                             htt->max_num_amsdu);
 269        if (status) {
 270                ath10k_warn(ar, "failed to setup amsdu/ampdu limit: %d\n",
 271                            status);
 272                return status;
 273        }
 274
 275        return 0;
 276}
 277