bd8dba0833
Spectral HW time stamp gets reset when a reset happens in
within target. This can potentially result in unpredictable
behaviour during classification. To mitigate this calculated
offset is added to the time stamp value in the FFT report.
HT = Spectral HW timer
AT = Actual time stamp in spectral report
CF = Time stamp correction factor
CT = Corrected time stamp
L = Time stamp in the last FFT report before reset
F = Time stamp in the first FFT report after reset
D = Time gap between the last spectral report before reset
and the end of reset(This is provided by FW via direct
DMA framework)
***Target Reset***
^
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|<---D---->| time line--->
_______________________________________________________
^ ^ ^ ^
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HT --> 0 L 0 F
AT --> 0 L F
CF --> 0 0 (L+D)
CT --> 0 L (F+L+D)
Spectral driver corrects the time stamp received from target
using the following formula and sends upwards.
CT(Corrected time stamp) = AT(Actual time stamp) +
CF(Correction Factor)
Calculation of Correction factor (CF):-
---------------------------------------
Initialization : CF = 0
CF += (L + D) (Done only for the first spectral report after reset)
This scheme takes care of the wrap around in the 32 bit time stamp
which would have occurred if the timer was not restarted due to
target reset.
CRs-Fixed: 2356382 2355486
Change-Id: I17b55d39eb91eb03b867bcfddaf3eb03d1fc5d1b
173 lines
5.5 KiB
C
173 lines
5.5 KiB
C
/*
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* Copyright (c) 2016-2018 The Linux Foundation. All rights reserved.
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*
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* Permission to use, copy, modify, and/or distribute this software for
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* any purpose with or without fee is hereby granted, provided that the
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* above copyright notice and this permission notice appear in all
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* copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
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* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <osdep.h>
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#include "wmi.h"
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#include "wmi_unified_priv.h"
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#include "wmi_unified_dbr_param.h"
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#include "wmi_unified_dbr_api.h"
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/**
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* send_dbr_cfg_cmd_tlv() - configure DMA rings for Direct Buf RX
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* @wmi_handle: wmi handle
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* @data_len: len of dma cfg req
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* @data: dma cfg req
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*
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* Return: QDF_STATUS_SUCCESS on success and QDF_STATUS_E_FAILURE for failure
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*/
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static QDF_STATUS send_dbr_cfg_cmd_tlv(wmi_unified_t wmi_handle,
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struct direct_buf_rx_cfg_req *cfg)
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{
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wmi_buf_t buf;
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wmi_dma_ring_cfg_req_fixed_param *cmd;
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QDF_STATUS ret;
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int32_t len = sizeof(*cmd);
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buf = wmi_buf_alloc(wmi_handle, sizeof(*cmd));
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if (!buf) {
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WMI_LOGE(FL("wmi_buf_alloc failed"));
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return QDF_STATUS_E_FAILURE;
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}
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cmd = (wmi_dma_ring_cfg_req_fixed_param *)wmi_buf_data(buf);
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WMITLV_SET_HDR(&cmd->tlv_header,
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WMITLV_TAG_STRUC_wmi_dma_ring_cfg_req_fixed_param,
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WMITLV_GET_STRUCT_TLVLEN(wmi_dma_ring_cfg_req_fixed_param));
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cmd->pdev_id = wmi_handle->ops->convert_pdev_id_host_to_target(
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cfg->pdev_id);
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cmd->mod_id = cfg->mod_id;
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cmd->base_paddr_lo = cfg->base_paddr_lo;
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cmd->base_paddr_hi = cfg->base_paddr_hi;
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cmd->head_idx_paddr_lo = cfg->head_idx_paddr_lo;
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cmd->head_idx_paddr_hi = cfg->head_idx_paddr_hi;
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cmd->tail_idx_paddr_lo = cfg->tail_idx_paddr_lo;
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cmd->tail_idx_paddr_hi = cfg->tail_idx_paddr_hi;
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cmd->num_elems = cfg->num_elems;
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cmd->buf_size = cfg->buf_size;
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cmd->num_resp_per_event = cfg->num_resp_per_event;
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cmd->event_timeout_ms = cfg->event_timeout_ms;
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WMI_LOGD("%s: wmi_dma_ring_cfg_req_fixed_param pdev id %d mod id %d"
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"base paddr lo %x base paddr hi %x head idx paddr lo %x"
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"head idx paddr hi %x tail idx paddr lo %x"
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"tail idx addr hi %x num elems %d buf size %d num resp %d"
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"event timeout %d", __func__, cmd->pdev_id,
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cmd->mod_id, cmd->base_paddr_lo, cmd->base_paddr_hi,
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cmd->head_idx_paddr_lo, cmd->head_idx_paddr_hi,
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cmd->tail_idx_paddr_lo, cmd->tail_idx_paddr_hi,
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cmd->num_elems, cmd->buf_size, cmd->num_resp_per_event,
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cmd->event_timeout_ms);
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wmi_mtrace(WMI_PDEV_DMA_RING_CFG_REQ_CMDID, NO_SESSION, 0);
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ret = wmi_unified_cmd_send(wmi_handle, buf, len,
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WMI_PDEV_DMA_RING_CFG_REQ_CMDID);
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if (QDF_IS_STATUS_ERROR(ret)) {
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WMI_LOGE(FL(":wmi cmd send failed"));
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wmi_buf_free(buf);
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}
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return ret;
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}
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static QDF_STATUS extract_dbr_buf_release_fixed_tlv(wmi_unified_t wmi_handle,
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uint8_t *event, struct direct_buf_rx_rsp *param)
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{
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WMI_PDEV_DMA_RING_BUF_RELEASE_EVENTID_param_tlvs *param_buf;
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wmi_dma_buf_release_fixed_param *ev;
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param_buf = (WMI_PDEV_DMA_RING_BUF_RELEASE_EVENTID_param_tlvs *)event;
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if (!param_buf)
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return QDF_STATUS_E_INVAL;
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ev = param_buf->fixed_param;
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if (!ev)
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return QDF_STATUS_E_INVAL;
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param->pdev_id = wmi_handle->ops->convert_pdev_id_target_to_host(
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ev->pdev_id);
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param->mod_id = ev->mod_id;
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param->num_buf_release_entry = ev->num_buf_release_entry;
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param->num_meta_data_entry = ev->num_meta_data_entry;
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WMI_LOGD("%s:pdev id %d mod id %d num buf release entry %d", __func__,
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param->pdev_id, param->mod_id, param->num_buf_release_entry);
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return QDF_STATUS_SUCCESS;
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}
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static QDF_STATUS extract_dbr_buf_release_entry_tlv(wmi_unified_t wmi_handle,
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uint8_t *event, uint8_t idx, struct direct_buf_rx_entry *param)
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{
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WMI_PDEV_DMA_RING_BUF_RELEASE_EVENTID_param_tlvs *param_buf;
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wmi_dma_buf_release_entry *entry;
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param_buf = (WMI_PDEV_DMA_RING_BUF_RELEASE_EVENTID_param_tlvs *)event;
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if (!param_buf)
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return QDF_STATUS_E_INVAL;
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entry = ¶m_buf->entries[idx];
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if (!entry) {
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WMI_LOGE("%s: Entry is NULL", __func__);
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return QDF_STATUS_E_FAILURE;
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}
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WMI_LOGD("%s: paddr_lo[%d] = %x", __func__, idx, entry->paddr_lo);
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param->paddr_lo = entry->paddr_lo;
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param->paddr_hi = entry->paddr_hi;
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return QDF_STATUS_SUCCESS;
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}
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static QDF_STATUS extract_dbr_buf_metadata_tlv(
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wmi_unified_t wmi_handle, uint8_t *event,
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uint8_t idx, struct direct_buf_rx_metadata *param)
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{
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WMI_PDEV_DMA_RING_BUF_RELEASE_EVENTID_param_tlvs *param_buf;
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wmi_dma_buf_release_spectral_meta_data *entry;
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param_buf = (WMI_PDEV_DMA_RING_BUF_RELEASE_EVENTID_param_tlvs *)event;
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if (!param_buf)
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return QDF_STATUS_E_INVAL;
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entry = ¶m_buf->meta_data[idx];
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if (!entry) {
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WMI_LOGE("%s: Entry is NULL", __func__);
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return QDF_STATUS_E_FAILURE;
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}
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qdf_mem_copy(param->noisefloor, entry->noise_floor,
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qdf_min(sizeof(entry->noise_floor),
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sizeof(param->noisefloor)));
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param->reset_delay = entry->reset_delay;
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return QDF_STATUS_SUCCESS;
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}
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void wmi_dbr_attach_tlv(wmi_unified_t wmi_handle)
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{
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struct wmi_ops *ops = wmi_handle->ops;
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ops->send_dbr_cfg_cmd = send_dbr_cfg_cmd_tlv;
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ops->extract_dbr_buf_release_entry = extract_dbr_buf_release_entry_tlv;
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ops->extract_dbr_buf_metadata = extract_dbr_buf_metadata_tlv;
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ops->extract_dbr_buf_release_fixed = extract_dbr_buf_release_fixed_tlv;
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}
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