mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-24 12:29:44 +07:00
38e2a64417
wait_for_completion_timeout does not return negative values so the tests for <= 0 are not needed and the case differentiation in the error handling path unnecessary. Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
115 lines
2.9 KiB
C
115 lines
2.9 KiB
C
/*
|
|
* Copyright (c) 2005-2011 Atheros Communications Inc.
|
|
* Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
|
|
*
|
|
* Permission to use, copy, modify, and/or 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.
|
|
*/
|
|
|
|
#include <linux/slab.h>
|
|
#include <linux/if_ether.h>
|
|
|
|
#include "htt.h"
|
|
#include "core.h"
|
|
#include "debug.h"
|
|
|
|
int ath10k_htt_connect(struct ath10k_htt *htt)
|
|
{
|
|
struct ath10k_htc_svc_conn_req conn_req;
|
|
struct ath10k_htc_svc_conn_resp conn_resp;
|
|
int status;
|
|
|
|
memset(&conn_req, 0, sizeof(conn_req));
|
|
memset(&conn_resp, 0, sizeof(conn_resp));
|
|
|
|
conn_req.ep_ops.ep_tx_complete = ath10k_htt_htc_tx_complete;
|
|
conn_req.ep_ops.ep_rx_complete = ath10k_htt_t2h_msg_handler;
|
|
|
|
/* connect to control service */
|
|
conn_req.service_id = ATH10K_HTC_SVC_ID_HTT_DATA_MSG;
|
|
|
|
status = ath10k_htc_connect_service(&htt->ar->htc, &conn_req,
|
|
&conn_resp);
|
|
|
|
if (status)
|
|
return status;
|
|
|
|
htt->eid = conn_resp.eid;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ath10k_htt_init(struct ath10k *ar)
|
|
{
|
|
struct ath10k_htt *htt = &ar->htt;
|
|
|
|
htt->ar = ar;
|
|
|
|
/*
|
|
* Prefetch enough data to satisfy target
|
|
* classification engine.
|
|
* This is for LL chips. HL chips will probably
|
|
* transfer all frame in the tx fragment.
|
|
*/
|
|
htt->prefetch_len =
|
|
36 + /* 802.11 + qos + ht */
|
|
4 + /* 802.1q */
|
|
8 + /* llc snap */
|
|
2; /* ip4 dscp or ip6 priority */
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define HTT_TARGET_VERSION_TIMEOUT_HZ (3*HZ)
|
|
|
|
static int ath10k_htt_verify_version(struct ath10k_htt *htt)
|
|
{
|
|
struct ath10k *ar = htt->ar;
|
|
|
|
ath10k_dbg(ar, ATH10K_DBG_BOOT, "htt target version %d.%d\n",
|
|
htt->target_version_major, htt->target_version_minor);
|
|
|
|
if (htt->target_version_major != 2 &&
|
|
htt->target_version_major != 3) {
|
|
ath10k_err(ar, "unsupported htt major version %d. supported versions are 2 and 3\n",
|
|
htt->target_version_major);
|
|
return -ENOTSUPP;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ath10k_htt_setup(struct ath10k_htt *htt)
|
|
{
|
|
struct ath10k *ar = htt->ar;
|
|
int status;
|
|
|
|
init_completion(&htt->target_version_received);
|
|
|
|
status = ath10k_htt_h2t_ver_req_msg(htt);
|
|
if (status)
|
|
return status;
|
|
|
|
status = wait_for_completion_timeout(&htt->target_version_received,
|
|
HTT_TARGET_VERSION_TIMEOUT_HZ);
|
|
if (status == 0) {
|
|
ath10k_warn(ar, "htt version request timed out\n");
|
|
return -ETIMEDOUT;
|
|
}
|
|
|
|
status = ath10k_htt_verify_version(htt);
|
|
if (status)
|
|
return status;
|
|
|
|
return ath10k_htt_send_rx_ring_cfg_ll(htt);
|
|
}
|