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  1/*
  2 * Copyright (c) 2005-2011 Atheros Communications Inc.
  3 * Copyright (c) 2011-2017 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	[HTT_10_4_T2H_MSG_TYPE_PEER_STATS] =
141				HTT_T2H_MSG_TYPE_PEER_STATS,
142};
143
144int ath10k_htt_connect(struct ath10k_htt *htt)
145{
146	struct ath10k_htc_svc_conn_req conn_req;
147	struct ath10k_htc_svc_conn_resp conn_resp;
148	int status;
149
150	memset(&conn_req, 0, sizeof(conn_req));
151	memset(&conn_resp, 0, sizeof(conn_resp));
152
153	conn_req.ep_ops.ep_tx_complete = ath10k_htt_htc_tx_complete;
154	conn_req.ep_ops.ep_rx_complete = ath10k_htt_htc_t2h_msg_handler;
155
156	/* connect to control service */
157	conn_req.service_id = ATH10K_HTC_SVC_ID_HTT_DATA_MSG;
158
159	status = ath10k_htc_connect_service(&htt->ar->htc, &conn_req,
160					    &conn_resp);
161
162	if (status)
163		return status;
164
165	htt->eid = conn_resp.eid;
166
167	return 0;
168}
169
170int ath10k_htt_init(struct ath10k *ar)
171{
172	struct ath10k_htt *htt = &ar->htt;
173
174	htt->ar = ar;
175
176	/*
177	 * Prefetch enough data to satisfy target
178	 * classification engine.
179	 * This is for LL chips. HL chips will probably
180	 * transfer all frame in the tx fragment.
181	 */
182	htt->prefetch_len =
183		36 + /* 802.11 + qos + ht */
184		4 + /* 802.1q */
185		8 + /* llc snap */
186		2; /* ip4 dscp or ip6 priority */
187
188	switch (ar->running_fw->fw_file.htt_op_version) {
189	case ATH10K_FW_HTT_OP_VERSION_10_4:
190		ar->htt.t2h_msg_types = htt_10_4_t2h_msg_types;
191		ar->htt.t2h_msg_types_max = HTT_10_4_T2H_NUM_MSGS;
192		break;
193	case ATH10K_FW_HTT_OP_VERSION_10_1:
194		ar->htt.t2h_msg_types = htt_10x_t2h_msg_types;
195		ar->htt.t2h_msg_types_max = HTT_10X_T2H_NUM_MSGS;
196		break;
197	case ATH10K_FW_HTT_OP_VERSION_TLV:
198		ar->htt.t2h_msg_types = htt_tlv_t2h_msg_types;
199		ar->htt.t2h_msg_types_max = HTT_TLV_T2H_NUM_MSGS;
200		break;
201	case ATH10K_FW_HTT_OP_VERSION_MAIN:
202		ar->htt.t2h_msg_types = htt_main_t2h_msg_types;
203		ar->htt.t2h_msg_types_max = HTT_MAIN_T2H_NUM_MSGS;
204		break;
205	case ATH10K_FW_HTT_OP_VERSION_MAX:
206	case ATH10K_FW_HTT_OP_VERSION_UNSET:
207		WARN_ON(1);
208		return -EINVAL;
209	}
210	ath10k_htt_set_tx_ops(htt);
211	ath10k_htt_set_rx_ops(htt);
212
213	return 0;
214}
215
216#define HTT_TARGET_VERSION_TIMEOUT_HZ (3 * HZ)
217
218static int ath10k_htt_verify_version(struct ath10k_htt *htt)
219{
220	struct ath10k *ar = htt->ar;
221
222	ath10k_dbg(ar, ATH10K_DBG_BOOT, "htt target version %d.%d\n",
223		   htt->target_version_major, htt->target_version_minor);
224
225	if (htt->target_version_major != 2 &&
226	    htt->target_version_major != 3) {
227		ath10k_err(ar, "unsupported htt major version %d. supported versions are 2 and 3\n",
228			   htt->target_version_major);
229		return -ENOTSUPP;
230	}
231
232	return 0;
233}
234
235int ath10k_htt_setup(struct ath10k_htt *htt)
236{
237	struct ath10k *ar = htt->ar;
238	int status;
239
240	init_completion(&htt->target_version_received);
241
242	status = ath10k_htt_h2t_ver_req_msg(htt);
243	if (status)
244		return status;
245
246	status = wait_for_completion_timeout(&htt->target_version_received,
247					     HTT_TARGET_VERSION_TIMEOUT_HZ);
248	if (status == 0) {
249		ath10k_warn(ar, "htt version request timed out\n");
250		return -ETIMEDOUT;
251	}
252
253	status = ath10k_htt_verify_version(htt);
254	if (status) {
255		ath10k_warn(ar, "failed to verify htt version: %d\n",
256			    status);
257		return status;
258	}
259
260	status = htt->tx_ops->htt_send_frag_desc_bank_cfg(htt);
261	if (status)
262		return status;
263
264	status = htt->tx_ops->htt_send_rx_ring_cfg(htt);
265	if (status) {
266		ath10k_warn(ar, "failed to setup rx ring: %d\n",
267			    status);
268		return status;
269	}
270
271	status = ath10k_htt_h2t_aggr_cfg_msg(htt,
272					     htt->max_num_ampdu,
273					     htt->max_num_amsdu);
274	if (status) {
275		ath10k_warn(ar, "failed to setup amsdu/ampdu limit: %d\n",
276			    status);
277		return status;
278	}
279
280	return 0;
281}