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8821cu-20210916/core/rtw_rm_fsm.c
2022-11-17 08:26:57 -06:00

1018 lines
23 KiB
C

/******************************************************************************
*
* Copyright(c) 2007 - 2017 Realtek Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
*****************************************************************************/
#include <drv_types.h>
#include <hal_data.h>
#ifdef CONFIG_RTW_80211K
#include "rtw_rm_fsm.h"
#include "rtw_rm_util.h"
struct fsm_state {
u8 *name;
int(*fsm_func)(struct rm_obj *prm, enum RM_EV_ID evid);
};
static void rm_state_initial(struct rm_obj *prm);
static void rm_state_goto(struct rm_obj *prm, enum RM_STATE rm_state);
static void rm_state_run(struct rm_obj *prm, enum RM_EV_ID evid);
static struct rm_event *rm_dequeue_ev(_queue *queue);
static struct rm_obj *rm_dequeue_rm(_queue *queue);
void rm_timer_callback(void *data)
{
int i;
_adapter *padapter = (_adapter *)data;
struct rm_priv *prmpriv = &padapter->rmpriv;
struct rm_clock *pclock;
/* deal with clock */
for (i=0;i<RM_TIMER_NUM;i++) {
pclock = &prmpriv->clock[i];
if (pclock->prm == NULL
||(ATOMIC_READ(&(pclock->counter)) == 0))
continue;
ATOMIC_DEC(&(pclock->counter));
if (ATOMIC_READ(&(pclock->counter)) == 0)
rm_post_event(pclock->prm->psta->padapter,
pclock->prm->rmid, prmpriv->clock[i].evid);
}
_set_timer(&prmpriv->rm_timer, CLOCK_UNIT);
}
int rtw_init_rm(_adapter *padapter)
{
struct rm_priv *prmpriv = &padapter->rmpriv;
RTW_INFO("RM: %s\n",__func__);
_rtw_init_queue(&(prmpriv->rm_queue));
_rtw_init_queue(&(prmpriv->ev_queue));
/* bit 0-7 */
prmpriv->rm_en_cap_def[0] = 0
| BIT(RM_LINK_MEAS_CAP_EN)
| BIT(RM_NB_REP_CAP_EN)
/*| BIT(RM_PARAL_MEAS_CAP_EN)*/
| BIT(RM_REPEAT_MEAS_CAP_EN)
| BIT(RM_BCN_PASSIVE_MEAS_CAP_EN)
| BIT(RM_BCN_ACTIVE_MEAS_CAP_EN)
| BIT(RM_BCN_TABLE_MEAS_CAP_EN)
/*| BIT(RM_BCN_MEAS_REP_COND_CAP_EN)*/;
/* bit 8-15 */
prmpriv->rm_en_cap_def[1] = 0
/*| BIT(RM_FRAME_MEAS_CAP_EN - 8)*/
#ifdef CONFIG_RTW_ACS
| BIT(RM_CH_LOAD_CAP_EN - 8)
| BIT(RM_NOISE_HISTO_CAP_EN - 8)
#endif
/*| BIT(RM_STATIS_MEAS_CAP_EN - 8)*/
/*| BIT(RM_LCI_MEAS_CAP_EN - 8)*/
/*| BIT(RM_LCI_AMIMUTH_CAP_EN - 8)*/
/*| BIT(RM_TRANS_STREAM_CAT_MEAS_CAP_EN - 8)*/
/*| BIT(RM_TRIG_TRANS_STREAM_CAT_MEAS_CAP_EN - 8)*/;
/* bit 16-23 */
prmpriv->rm_en_cap_def[2] = 0
/*| BIT(RM_AP_CH_REP_CAP_EN - 16)*/
/*| BIT(RM_RM_MIB_CAP_EN - 16)*/
/*| BIT(RM_OP_CH_MAX_MEAS_DUR0 - 16)*/
/*| BIT(RM_OP_CH_MAX_MEAS_DUR1 - 16)*/
/*| BIT(RM_OP_CH_MAX_MEAS_DUR2 - 16)*/
/*| BIT(RM_NONOP_CH_MAX_MEAS_DUR0 - 16)*/
/*| BIT(RM_NONOP_CH_MAX_MEAS_DUR1 - 16)*/
/*| BIT(RM_NONOP_CH_MAX_MEAS_DUR2 - 16)*/;
/* bit 24-31 */
prmpriv->rm_en_cap_def[3] = 0
/*| BIT(RM_MEAS_PILOT_CAP0 - 24)*/
/*| BIT(RM_MEAS_PILOT_CAP1 - 24)*/
/*| BIT(RM_MEAS_PILOT_CAP2 - 24)*/
/*| BIT(RM_MEAS_PILOT_TRANS_INFO_CAP_EN - 24)*/
/*| BIT(RM_NB_REP_TSF_OFFSET_CAP_EN - 24)*/
| BIT(RM_RCPI_MEAS_CAP_EN - 24)
| BIT(RM_RSNI_MEAS_CAP_EN - 24)
/*| BIT(RM_BSS_AVG_ACCESS_DELAY_CAP_EN - 24)*/;
/* bit 32-39 */
prmpriv->rm_en_cap_def[4] = 0
/*| BIT(RM_BSS_AVG_ACCESS_DELAY_CAP_EN - 32)*/
/*| BIT(RM_AVALB_ADMIS_CAPACITY_CAP_EN - 32)*/
/*| BIT(RM_ANT_CAP_EN - 32)*/;
prmpriv->enable = _TRUE;
/* clock timer */
rtw_init_timer(&prmpriv->rm_timer,
padapter, rm_timer_callback, padapter);
_set_timer(&prmpriv->rm_timer, CLOCK_UNIT);
prmpriv->meas_token = 1;
return _SUCCESS;
}
int rtw_deinit_rm(_adapter *padapter)
{
struct rm_priv *prmpriv = &padapter->rmpriv;
struct rm_obj *prm;
struct rm_event *pev;
RTW_INFO("RM: %s\n",__func__);
prmpriv->enable = _FALSE;
_cancel_timer_ex(&prmpriv->rm_timer);
/* free all events and measurements */
while((pev = rm_dequeue_ev(&prmpriv->ev_queue)) != NULL)
rtw_mfree((void *)pev, sizeof(struct rm_event));
while((prm = rm_dequeue_rm(&prmpriv->rm_queue)) != NULL)
rm_state_run(prm, RM_EV_cancel);
_rtw_deinit_queue(&(prmpriv->rm_queue));
_rtw_deinit_queue(&(prmpriv->ev_queue));
return _SUCCESS;
}
int rtw_free_rm_priv(_adapter *padapter)
{
return rtw_deinit_rm(padapter);
}
static int rm_enqueue_ev(_queue *queue, struct rm_event *obj, bool to_head)
{
_irqL irqL;
if (obj == NULL)
return _FAIL;
_enter_critical(&queue->lock, &irqL);
if (to_head)
rtw_list_insert_head(&obj->list, &queue->queue);
else
rtw_list_insert_tail(&obj->list, &queue->queue);
_exit_critical(&queue->lock, &irqL);
return _SUCCESS;
}
static void rm_set_clock(struct rm_obj *prm, u32 ms, enum RM_EV_ID evid)
{
ATOMIC_SET(&(prm->pclock->counter), (ms/CLOCK_UNIT));
prm->pclock->evid = evid;
}
static struct rm_clock *rm_alloc_clock(_adapter *padapter, struct rm_obj *prm)
{
int i;
struct rm_priv *prmpriv = &padapter->rmpriv;
struct rm_clock *pclock = NULL;
for (i=0;i<RM_TIMER_NUM;i++) {
pclock = &prmpriv->clock[i];
if (pclock->prm == NULL) {
pclock->prm = prm;
ATOMIC_SET(&(pclock->counter), 0);
pclock->evid = RM_EV_max;
break;
}
}
return pclock;
}
static void rm_cancel_clock(struct rm_obj *prm)
{
ATOMIC_SET(&(prm->pclock->counter), 0);
prm->pclock->evid = RM_EV_max;
}
static void rm_free_clock(struct rm_clock *pclock)
{
pclock->prm = NULL;
ATOMIC_SET(&(pclock->counter), 0);
pclock->evid = RM_EV_max;
}
static int is_list_linked(const struct list_head *head)
{
return head->prev != NULL;
}
void rm_free_rmobj(struct rm_obj *prm)
{
if (is_list_linked(&prm->list))
rtw_list_delete(&prm->list);
if (prm->q.pssid)
rtw_mfree(prm->q.pssid, strlen(prm->q.pssid)+1);
if (prm->q.opt.bcn.req_start)
rtw_mfree(prm->q.opt.bcn.req_start,
prm->q.opt.bcn.req_len);
if (prm->pclock)
rm_free_clock(prm->pclock);
rtw_mfree((void *)prm, sizeof(struct rm_obj));
}
struct rm_obj *rm_alloc_rmobj(_adapter *padapter)
{
struct rm_obj *prm;
prm = (struct rm_obj *)rtw_malloc(sizeof(struct rm_obj));
if (prm == NULL)
return NULL;
_rtw_memset(prm, 0, sizeof(struct rm_obj));
/* alloc timer */
if ((prm->pclock = rm_alloc_clock(padapter, prm)) == NULL) {
rm_free_rmobj(prm);
return NULL;
}
return prm;
}
int rm_enqueue_rmobj(_adapter *padapter, struct rm_obj *prm, bool to_head)
{
_irqL irqL;
struct rm_priv *prmpriv = &padapter->rmpriv;
_queue *queue = &prmpriv->rm_queue;
if (prm == NULL)
return _FAIL;
_enter_critical(&queue->lock, &irqL);
if (to_head)
rtw_list_insert_head(&prm->list, &queue->queue);
else
rtw_list_insert_tail(&prm->list, &queue->queue);
_exit_critical(&queue->lock, &irqL);
rm_state_initial(prm);
return _SUCCESS;
}
static struct rm_obj *rm_dequeue_rm(_queue *queue)
{
_irqL irqL;
struct rm_obj *prm;
_enter_critical(&queue->lock, &irqL);
if (rtw_is_list_empty(&(queue->queue)))
prm = NULL;
else {
prm = LIST_CONTAINOR(get_next(&(queue->queue)),
struct rm_obj, list);
/* rtw_list_delete(&prm->list); */
}
_exit_critical(&queue->lock, &irqL);
return prm;
}
static struct rm_event *rm_dequeue_ev(_queue *queue)
{
_irqL irqL;
struct rm_event *ev;
_enter_critical(&queue->lock, &irqL);
if (rtw_is_list_empty(&(queue->queue)))
ev = NULL;
else {
ev = LIST_CONTAINOR(get_next(&(queue->queue)),
struct rm_event, list);
rtw_list_delete(&ev->list);
}
_exit_critical(&queue->lock, &irqL);
return ev;
}
static struct rm_obj *_rm_get_rmobj(_queue *queue, u32 rmid)
{
_irqL irqL;
_list *phead, *plist;
struct rm_obj *prm = NULL;
if (rmid == 0)
return NULL;
_enter_critical(&queue->lock, &irqL);
phead = get_list_head(queue);
plist = get_next(phead);
while ((rtw_end_of_queue_search(phead, plist)) == _FALSE) {
prm = LIST_CONTAINOR(plist, struct rm_obj, list);
if (rmid == (prm->rmid)) {
_exit_critical(&queue->lock, &irqL);
return prm;
}
plist = get_next(plist);
}
_exit_critical(&queue->lock, &irqL);
return NULL;
}
struct sta_info *rm_get_psta(_adapter *padapter, u32 rmid)
{
struct rm_priv *prmpriv = &padapter->rmpriv;
struct rm_obj *prm;
prm = _rm_get_rmobj(&prmpriv->rm_queue, rmid);
if (prm)
return prm->psta;
return NULL;
}
struct rm_obj *rm_get_rmobj(_adapter *padapter, u32 rmid)
{
struct rm_priv *prmpriv = &padapter->rmpriv;
return _rm_get_rmobj(&prmpriv->rm_queue, rmid);
}
u8 rtw_rm_post_envent_cmd(_adapter *padapter, u32 rmid, u8 evid)
{
struct cmd_obj *pcmd;
struct rm_event *pev;
struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
u8 res = _SUCCESS;
pcmd = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
if (pcmd == NULL) {
res = _FAIL;
goto exit;
}
pev = (struct rm_event*)rtw_zmalloc(sizeof(struct rm_event));
if (pev == NULL) {
rtw_mfree((u8 *) pcmd, sizeof(struct cmd_obj));
res = _FAIL;
goto exit;
}
pev->rmid = rmid;
pev->evid = evid;
init_h2fwcmd_w_parm_no_rsp(pcmd, pev, CMD_RM_POST_EVENT);
res = rtw_enqueue_cmd(pcmdpriv, pcmd);
exit:
return res;
}
int rm_post_event(_adapter *padapter, u32 rmid, enum RM_EV_ID evid)
{
if (padapter->rmpriv.enable == _FALSE)
return _FALSE;
RTW_INFO("RM: post asyn %s to rmid=%x\n", rm_event_name(evid), rmid);
rtw_rm_post_envent_cmd(padapter, rmid, evid);
return _SUCCESS;
}
int _rm_post_event(_adapter *padapter, u32 rmid, enum RM_EV_ID evid)
{
struct rm_priv *prmpriv = &padapter->rmpriv;
struct rm_event *pev;
if (evid >= RM_EV_max || rmid == 0)
return _FALSE;
pev = (struct rm_event *)rtw_malloc(sizeof(struct rm_event));
if (pev == NULL)
return _FALSE;
pev->rmid = rmid;
pev->evid = evid;
RTW_INFO("RM: post sync %s to rmid=%x\n", rm_event_name(evid), rmid);
rm_enqueue_ev(&prmpriv->ev_queue, pev, FALSE);
return _SUCCESS;
}
static void rm_bcast_aid_handler(_adapter *padapter, struct rm_event *pev)
{
_irqL irqL;
_list *phead, *plist;
_queue *queue = &padapter->rmpriv.rm_queue;
struct rm_obj *prm;
_enter_critical(&queue->lock, &irqL);
phead = get_list_head(queue);
plist = get_next(phead);
while ((rtw_end_of_queue_search(phead, plist)) == _FALSE) {
prm = LIST_CONTAINOR(plist, struct rm_obj, list);
plist = get_next(plist);
if (RM_GET_AID(pev->rmid) == RM_GET_AID(prm->rmid)) {
_exit_critical(&queue->lock, &irqL);
rm_state_run(prm, pev->evid);
_enter_critical(&queue->lock, &irqL);
}
}
_exit_critical(&queue->lock, &irqL);
return;
}
/* main handler of RM (Resource Management) */
void rm_handler(_adapter *padapter, struct rm_event *pe)
{
int i;
struct rm_priv *prmpriv = &padapter->rmpriv;
struct rm_obj *prm;
struct rm_event *pev;
/* dequeue event */
while((pev = rm_dequeue_ev(&prmpriv->ev_queue)) != NULL)
{
if (RM_IS_ID_FOR_ALL(pev->rmid)) {
/* apply to all aid mateched measurement */
rm_bcast_aid_handler(padapter, pev);
rtw_mfree((void *)pev, sizeof(struct rm_event));
continue;
}
/* retrieve rmobj */
prm = _rm_get_rmobj(&prmpriv->rm_queue, pev->rmid);
if (prm == NULL) {
RTW_ERR("RM: rmid=%x event=%s doesn't find rm obj\n",
pev->rmid, rm_event_name(pev->evid));
rtw_mfree((void *)pev, sizeof(struct rm_event));
return;
}
/* run state machine */
rm_state_run(prm, pev->evid);
rtw_mfree((void *)pev, sizeof(struct rm_event));
}
}
static int rm_issue_meas_req(struct rm_obj *prm)
{
switch (prm->q.action_code) {
case RM_ACT_RADIO_MEAS_REQ:
switch (prm->q.m_type) {
case bcn_req:
case ch_load_req:
case noise_histo_req:
issue_radio_meas_req(prm);
break;
default:
break;
} /* meas_type */
break;
case RM_ACT_NB_REP_REQ:
/* issue neighbor request */
issue_nb_req(prm);
break;
case RM_ACT_LINK_MEAS_REQ:
issue_link_meas_req(prm);
break;
default:
return _FALSE;
} /* action_code */
return _SUCCESS;
}
/*
* RM state machine
*/
static int rm_state_idle(struct rm_obj *prm, enum RM_EV_ID evid)
{
_adapter *padapter = prm->psta->padapter;
u8 val8;
u32 val32;
prm->p.category = RTW_WLAN_CATEGORY_RADIO_MEAS;
switch (evid) {
case RM_EV_state_in:
switch (prm->q.action_code) {
case RM_ACT_RADIO_MEAS_REQ:
/* copy attrib from meas_req to meas_rep */
prm->p.action_code = RM_ACT_RADIO_MEAS_REP;
prm->p.diag_token = prm->q.diag_token;
prm->p.e_id = _MEAS_RSP_IE_;
prm->p.m_token = prm->q.m_token;
prm->p.m_type = prm->q.m_type;
prm->p.rpt = prm->q.rpt;
prm->p.ch_num = prm->q.ch_num;
prm->p.op_class = prm->q.op_class;
if (prm->q.m_type == ch_load_req
|| prm->q.m_type == noise_histo_req) {
/*
* phydm measure current ch periodically
* scan current ch is not necessary
*/
val8 = padapter->mlmeextpriv.cur_channel;
if (prm->q.ch_num == val8)
prm->poll_mode = 1;
}
RTW_INFO("RM: rmid=%x %s switch in repeat=%u\n",
prm->rmid, rm_type_req_name(prm->q.m_type),
prm->q.rpt);
break;
case RM_ACT_NB_REP_REQ:
prm->p.action_code = RM_ACT_NB_REP_RESP;
RTW_INFO("RM: rmid=%x Neighbor request switch in\n",
prm->rmid);
break;
case RM_ACT_LINK_MEAS_REQ:
prm->p.diag_token = prm->q.diag_token;
prm->p.action_code = RM_ACT_LINK_MEAS_REP;
RTW_INFO("RM: rmid=%x Link meas switch in\n",
prm->rmid);
break;
default:
prm->p.action_code = prm->q.action_code;
rm_set_rep_mode(prm, MEAS_REP_MOD_INCAP);
RTW_INFO("RM: rmid=%x recv unknown action %d\n",
prm->rmid,prm->p.action_code);
break;
} /* switch() */
if (prm->rmid & RM_MASTER) {
if (rm_issue_meas_req(prm) == _SUCCESS)
rm_state_goto(prm, RM_ST_WAIT_MEAS);
else
rm_state_goto(prm, RM_ST_END);
return _SUCCESS;
} else {
rm_state_goto(prm, RM_ST_DO_MEAS);
return _SUCCESS;
}
if (prm->p.m_mode) {
issue_null_reply(prm);
rm_state_goto(prm, RM_ST_END);
return _SUCCESS;
}
if (prm->q.rand_intvl) {
/* get low tsf to generate random interval */
val32 = rtw_read32(padapter, REG_TSFTR);
val32 = val32 % prm->q.rand_intvl;
RTW_INFO("RM: rmid=%x rand_intval=%d, rand=%d\n",
prm->rmid, (int)prm->q.rand_intvl,val32);
rm_set_clock(prm, prm->q.rand_intvl,
RM_EV_delay_timer_expire);
return _SUCCESS;
}
break;
case RM_EV_delay_timer_expire:
rm_state_goto(prm, RM_ST_DO_MEAS);
break;
case RM_EV_cancel:
rm_state_goto(prm, RM_ST_END);
break;
case RM_EV_state_out:
rm_cancel_clock(prm);
break;
default:
break;
}
return _SUCCESS;
}
/* we do the measuring */
static int rm_state_do_meas(struct rm_obj *prm, enum RM_EV_ID evid)
{
_adapter *padapter = prm->psta->padapter;
u8 val8;
u64 val64;
switch (evid) {
case RM_EV_state_in:
if (prm->q.action_code == RM_ACT_RADIO_MEAS_REQ) {
switch (prm->q.m_type) {
case bcn_req:
if (prm->q.m_mode == bcn_req_bcn_table) {
RTW_INFO("RM: rmid=%x Beacon table\n",
prm->rmid);
_rm_post_event(padapter, prm->rmid,
RM_EV_survey_done);
return _SUCCESS;
}
break;
case ch_load_req:
case noise_histo_req:
if (prm->poll_mode)
_rm_post_event(padapter, prm->rmid,
RM_EV_survey_done);
return _SUCCESS;
default:
rm_state_goto(prm, RM_ST_END);
return _SUCCESS;
}
if (!ready_for_scan(prm)) {
prm->wait_busy = RM_BUSY_TRAFFIC_TIMES;
RTW_INFO("RM: wait busy traffic - %d\n",
prm->wait_busy);
rm_set_clock(prm, RM_WAIT_BUSY_TIMEOUT,
RM_EV_busy_timer_expire);
return _SUCCESS;
}
} else if (prm->q.action_code == RM_ACT_LINK_MEAS_REQ) {
; /* do nothing */
rm_state_goto(prm, RM_ST_SEND_REPORT);
return _SUCCESS;
}
_rm_post_event(padapter, prm->rmid, RM_EV_start_meas);
break;
case RM_EV_start_meas:
if (prm->q.action_code == RM_ACT_RADIO_MEAS_REQ) {
/* resotre measurement start time */
prm->meas_start_time = rtw_hal_get_tsftr_by_port(padapter
, rtw_hal_get_port(padapter));
switch (prm->q.m_type) {
case bcn_req:
val8 = 1; /* Enable free run counter */
prm->free_run_counter_valid = rtw_hal_set_hwreg(
padapter, HW_VAR_FREECNT, &val8);
rm_sitesurvey(prm);
break;
case ch_load_req:
case noise_histo_req:
rm_sitesurvey(prm);
break;
default:
rm_state_goto(prm, RM_ST_END);
return _SUCCESS;
break;
}
}
/* handle measurement timeout */
rm_set_clock(prm, RM_MEAS_TIMEOUT, RM_EV_meas_timer_expire);
break;
case RM_EV_survey_done:
if (prm->q.action_code == RM_ACT_RADIO_MEAS_REQ) {
switch (prm->q.m_type) {
case bcn_req:
rm_cancel_clock(prm);
rm_state_goto(prm, RM_ST_SEND_REPORT);
return _SUCCESS;
case ch_load_req:
case noise_histo_req:
retrieve_radio_meas_result(prm);
if (rm_radio_meas_report_cond(prm) == _SUCCESS)
rm_state_goto(prm, RM_ST_SEND_REPORT);
else
rm_set_clock(prm, RM_COND_INTVL,
RM_EV_retry_timer_expire);
break;
default:
rm_state_goto(prm, RM_ST_END);
return _SUCCESS;
}
}
break;
case RM_EV_meas_timer_expire:
RTW_INFO("RM: rmid=%x measurement timeount\n",prm->rmid);
rm_set_rep_mode(prm, MEAS_REP_MOD_REFUSE);
issue_null_reply(prm);
rm_state_goto(prm, RM_ST_END);
break;
case RM_EV_busy_timer_expire:
if (!ready_for_scan(prm) && prm->wait_busy--) {
RTW_INFO("RM: wait busy - %d\n",prm->wait_busy);
rm_set_clock(prm, RM_WAIT_BUSY_TIMEOUT,
RM_EV_busy_timer_expire);
break;
}
else if (prm->wait_busy <= 0) {
RTW_INFO("RM: wait busy timeout\n");
rm_set_rep_mode(prm, MEAS_REP_MOD_REFUSE);
issue_null_reply(prm);
rm_state_goto(prm, RM_ST_END);
return _SUCCESS;
}
_rm_post_event(padapter, prm->rmid, RM_EV_start_meas);
break;
case RM_EV_request_timer_expire:
rm_set_rep_mode(prm, MEAS_REP_MOD_REFUSE);
issue_null_reply(prm);
rm_state_goto(prm, RM_ST_END);
break;
case RM_EV_retry_timer_expire:
/* expired due to meas condition mismatch, meas again */
_rm_post_event(padapter, prm->rmid, RM_EV_start_meas);
break;
case RM_EV_cancel:
rm_set_rep_mode(prm, MEAS_REP_MOD_REFUSE);
issue_null_reply(prm);
rm_state_goto(prm, RM_ST_END);
break;
case RM_EV_state_out:
rm_cancel_clock(prm);
/* resotre measurement end time */
prm->meas_end_time = rtw_hal_get_tsftr_by_port(padapter
, rtw_hal_get_port(padapter));
val8 = 0; /* Disable free run counter */
rtw_hal_set_hwreg(padapter, HW_VAR_FREECNT, &val8);
break;
default:
break;
}
return _SUCCESS;
}
static int rm_state_wait_meas(struct rm_obj *prm, enum RM_EV_ID evid)
{
u8 val8;
u64 val64;
switch (evid) {
case RM_EV_state_in:
/* we create meas_req, waiting for peer report */
rm_set_clock(prm, RM_REQ_TIMEOUT,
RM_EV_request_timer_expire);
break;
case RM_EV_recv_rep:
rm_state_goto(prm, RM_ST_RECV_REPORT);
break;
case RM_EV_request_timer_expire:
case RM_EV_cancel:
rm_state_goto(prm, RM_ST_END);
break;
case RM_EV_state_out:
rm_cancel_clock(prm);
break;
default:
break;
}
return _SUCCESS;
}
static int rm_state_send_report(struct rm_obj *prm, enum RM_EV_ID evid)
{
u8 val8;
switch (evid) {
case RM_EV_state_in:
/* we have to issue report */
if (prm->q.action_code == RM_ACT_RADIO_MEAS_REQ) {
switch (prm->q.m_type) {
case bcn_req:
issue_beacon_rep(prm);
break;
case ch_load_req:
case noise_histo_req:
issue_radio_meas_rep(prm);
break;
default:
rm_state_goto(prm, RM_ST_END);
return _SUCCESS;
}
} else if (prm->q.action_code == RM_ACT_LINK_MEAS_REQ) {
issue_link_meas_rep(prm);
rm_state_goto(prm, RM_ST_END);
return _SUCCESS;
} else {
rm_state_goto(prm, RM_ST_END);
return _SUCCESS;
}
/* check repeat */
if (prm->p.rpt) {
RTW_INFO("RM: rmid=%x repeat=%u/%u\n",
prm->rmid, prm->p.rpt,
prm->q.rpt);
prm->p.rpt--;
/*
* we recv meas_req,
* delay for a wihile and than meas again
*/
if (prm->poll_mode)
rm_set_clock(prm, RM_REPT_POLL_INTVL,
RM_EV_repeat_delay_expire);
else
rm_set_clock(prm, RM_REPT_SCAN_INTVL,
RM_EV_repeat_delay_expire);
return _SUCCESS;
}
/* we are done */
rm_state_goto(prm, RM_ST_END);
break;
case RM_EV_repeat_delay_expire:
rm_state_goto(prm, RM_ST_DO_MEAS);
break;
case RM_EV_cancel:
rm_state_goto(prm, RM_ST_END);
break;
case RM_EV_state_out:
rm_cancel_clock(prm);
break;
default:
break;
}
return _SUCCESS;
}
static int rm_state_recv_report(struct rm_obj *prm, enum RM_EV_ID evid)
{
u8 val8;
switch (evid) {
case RM_EV_state_in:
/* we issue meas_req, got peer's meas report */
switch (prm->p.action_code) {
case RM_ACT_RADIO_MEAS_REP:
/* check refuse, incapable and repeat */
val8 = prm->p.m_mode;
if (val8) {
RTW_INFO("RM: rmid=%x peer reject (%s repeat=%d)\n",
prm->rmid,
val8|MEAS_REP_MOD_INCAP?"INCAP":
val8|MEAS_REP_MOD_REFUSE?"REFUSE":
val8|MEAS_REP_MOD_LATE?"LATE":"",
prm->p.rpt);
rm_state_goto(prm, RM_ST_END);
return _SUCCESS;
}
break;
case RM_ACT_NB_REP_RESP:
/* report to upper layer if needing */
rm_state_goto(prm, RM_ST_END);
return _SUCCESS;
default:
rm_state_goto(prm, RM_ST_END);
return _SUCCESS;
}
/* check repeat */
if (prm->p.rpt) {
RTW_INFO("RM: rmid=%x repeat=%u/%u\n",
prm->rmid, prm->p.rpt,
prm->q.rpt);
prm->p.rpt--;
/* waitting more report */
rm_state_goto(prm, RM_ST_WAIT_MEAS);
break;
}
/* we are done */
rm_state_goto(prm, RM_ST_END);
break;
case RM_EV_cancel:
rm_state_goto(prm, RM_ST_END);
break;
case RM_EV_state_out:
rm_cancel_clock(prm);
break;
default:
break;
}
return _SUCCESS;
}
static int rm_state_end(struct rm_obj *prm, enum RM_EV_ID evid)
{
switch (evid) {
case RM_EV_state_in:
_rm_post_event(prm->psta->padapter, prm->rmid, RM_EV_state_out);
break;
case RM_EV_cancel:
case RM_EV_state_out:
default:
rm_free_rmobj(prm);
break;
}
return _SUCCESS;
}
struct fsm_state rm_fsm[] = {
{"RM_ST_IDLE", rm_state_idle},
{"RM_ST_DO_MEAS", rm_state_do_meas},
{"RM_ST_WAIT_MEAS", rm_state_wait_meas},
{"RM_ST_SEND_REPORT", rm_state_send_report},
{"RM_ST_RECV_REPORT", rm_state_recv_report},
{"RM_ST_END", rm_state_end}
};
char *rm_state_name(enum RM_STATE state)
{
return rm_fsm[state].name;
}
char *rm_event_name(enum RM_EV_ID evid)
{
switch(evid) {
case RM_EV_state_in:
return "RM_EV_state_in";
case RM_EV_busy_timer_expire:
return "RM_EV_busy_timer_expire";
case RM_EV_delay_timer_expire:
return "RM_EV_delay_timer_expire";
case RM_EV_meas_timer_expire:
return "RM_EV_meas_timer_expire";
case RM_EV_repeat_delay_expire:
return "RM_EV_repeat_delay_expire";
case RM_EV_retry_timer_expire:
return "RM_EV_retry_timer_expire";
case RM_EV_request_timer_expire:
return "RM_EV_request_timer_expire";
case RM_EV_wait_report:
return "RM_EV_wait_report";
case RM_EV_start_meas:
return "RM_EV_start_meas";
case RM_EV_survey_done:
return "RM_EV_survey_done";
case RM_EV_recv_rep:
return "RM_EV_recv_report";
case RM_EV_cancel:
return "RM_EV_cancel";
case RM_EV_state_out:
return "RM_EV_state_out";
case RM_EV_max:
return "RM_EV_max";
default:
return "RM_EV_unknown";
}
return "UNKNOWN";
}
static void rm_state_initial(struct rm_obj *prm)
{
prm->state = RM_ST_IDLE;
RTW_INFO("\n");
RTW_INFO("RM: rmid=%x %-18s -> %s\n",prm->rmid,
"new measurement", rm_fsm[prm->state].name);
rm_post_event(prm->psta->padapter, prm->rmid, RM_EV_state_in);
}
static void rm_state_run(struct rm_obj *prm, enum RM_EV_ID evid)
{
RTW_INFO("RM: rmid=%x %-18s %s\n",prm->rmid,
rm_fsm[prm->state].name,rm_event_name(evid));
rm_fsm[prm->state].fsm_func(prm, evid);
}
static void rm_state_goto(struct rm_obj *prm, enum RM_STATE rm_state)
{
if (prm->state == rm_state)
return;
rm_state_run(prm, RM_EV_state_out);
RTW_INFO("\n");
RTW_INFO("RM: rmid=%x %-18s -> %s\n",prm->rmid,
rm_fsm[prm->state].name, rm_fsm[rm_state].name);
prm->state = rm_state;
rm_state_run(prm, RM_EV_state_in);
}
#endif /* CONFIG_RTW_80211K */