2 * Copyright (c) 2005-2011 Atheros Communications Inc.
3 * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
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.
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.
18 #include <linux/slab.h>
19 #include <linux/if_ether.h>
25 static int ath10k_htt_htc_attach(struct ath10k_htt *htt)
27 struct ath10k_htc_svc_conn_req conn_req;
28 struct ath10k_htc_svc_conn_resp conn_resp;
31 memset(&conn_req, 0, sizeof(conn_req));
32 memset(&conn_resp, 0, sizeof(conn_resp));
34 conn_req.ep_ops.ep_tx_complete = ath10k_htt_htc_tx_complete;
35 conn_req.ep_ops.ep_rx_complete = ath10k_htt_t2h_msg_handler;
37 /* connect to control service */
38 conn_req.service_id = ATH10K_HTC_SVC_ID_HTT_DATA_MSG;
40 status = ath10k_htc_connect_service(&htt->ar->htc, &conn_req,
46 htt->eid = conn_resp.eid;
51 int ath10k_htt_attach(struct ath10k *ar)
53 struct ath10k_htt *htt = &ar->htt;
57 htt->max_throughput_mbps = 800;
60 * Connect to HTC service.
61 * This has to be done before calling ath10k_htt_rx_attach,
62 * since ath10k_htt_rx_attach involves sending a rx ring configure
63 * message to the target.
65 ret = ath10k_htt_htc_attach(htt);
67 ath10k_err("could not attach htt htc (%d)\n", ret);
71 ret = ath10k_htt_tx_attach(htt);
73 ath10k_err("could not attach htt tx (%d)\n", ret);
77 ret = ath10k_htt_rx_attach(htt);
79 ath10k_err("could not attach htt rx (%d)\n", ret);
84 * Prefetch enough data to satisfy target
85 * classification engine.
86 * This is for LL chips. HL chips will probably
87 * transfer all frame in the tx fragment.
90 36 + /* 802.11 + qos + ht */
93 2; /* ip4 dscp or ip6 priority */
98 ath10k_htt_tx_detach(htt);
103 #define HTT_TARGET_VERSION_TIMEOUT_HZ (3*HZ)
105 static int ath10k_htt_verify_version(struct ath10k_htt *htt)
107 ath10k_info("htt target version %d.%d\n",
108 htt->target_version_major, htt->target_version_minor);
110 if (htt->target_version_major != 2 &&
111 htt->target_version_major != 3) {
112 ath10k_err("unsupported htt major version %d. supported versions are 2 and 3\n",
113 htt->target_version_major);
120 int ath10k_htt_attach_target(struct ath10k_htt *htt)
124 init_completion(&htt->target_version_received);
126 status = ath10k_htt_h2t_ver_req_msg(htt);
130 status = wait_for_completion_timeout(&htt->target_version_received,
131 HTT_TARGET_VERSION_TIMEOUT_HZ);
133 ath10k_warn("htt version request timed out\n");
137 status = ath10k_htt_verify_version(htt);
141 return ath10k_htt_send_rx_ring_cfg_ll(htt);
144 void ath10k_htt_detach(struct ath10k_htt *htt)
146 ath10k_htt_rx_detach(htt);
147 ath10k_htt_tx_detach(htt);