/******************************************************************************
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*
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* Copyright(c) 2019 Realtek Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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*****************************************************************************/
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#define _PHL_WATCHDOG_C_
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#include "phl_headers.h"
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#ifdef CONFIG_FSM
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static void _phl_datapath_watchdog(struct phl_info_t *phl_info)
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{
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phl_tx_watchdog(phl_info);
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phl_rx_watchdog(phl_info);
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phl_sta_trx_tfc_upd(phl_info);
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}
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void rtw_phl_watchdog_callback(void *phl)
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{
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struct phl_info_t *phl_info = (struct phl_info_t *)phl;
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do {
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_phl_datapath_watchdog(phl_info);
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#ifdef CONFIG_PCI_HCI
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#ifdef RTW_WKARD_DYNAMIC_LTR
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phl_ltr_ctrl_watchdog(phl_info);
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#endif
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#ifdef PCIE_TRX_MIT_EN
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phl_pcie_trx_mit_watchdog(phl_info);
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#endif
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#endif
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phl_mr_watchdog(phl_info);
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rtw_hal_watchdog(phl_info->hal);
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} while (false);
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}
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#endif
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static void _phl_watchdog_sw(struct phl_info_t *phl)
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{
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/* Only sw statistics or sw behavior or trigger FG cmd */
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phl_tx_watchdog(phl);
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phl_rx_watchdog(phl);
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phl_sta_trx_tfc_upd(phl);
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}
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static void _phl_watchdog_hw(struct phl_info_t *phl)
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{
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#ifdef CONFIG_PHL_THERMAL_PROTECT
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phl_thermal_protect_watchdog(phl);
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#endif
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/* I/O, tx behavior, request power, ... */
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#ifdef CONFIG_PCI_HCI
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#ifdef RTW_WKARD_DYNAMIC_LTR
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phl_ltr_ctrl_watchdog(phl);
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#endif
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#ifdef PCIE_TRX_MIT_EN
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phl_pcie_trx_mit_watchdog(phl);
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#endif
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#endif
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phl_mr_watchdog(phl);
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rtw_hal_watchdog(phl->hal);
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phl_bcn_watchdog(phl);
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}
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#ifdef CONFIG_CMD_DISP
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static void _phl_watchdog_post_action(struct phl_info_t *phl_info)
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{
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#ifdef CONFIG_POWER_SAVE
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rtw_hal_ps_chk_hw_rf_state(phl_info->phl_com, phl_info->hal);
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#endif /* CONFIG_POWER_SAVE */
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}
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static void _phl_trigger_next_watchdog(struct phl_info_t *phl_info)
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{
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struct phl_watchdog *wdog = &(phl_info->wdog);
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if (wdog->state == WD_STATE_STARTED)
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_os_set_timer(phl_to_drvpriv(phl_info), &wdog->wdog_timer, wdog->period);
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}
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static void _phl_watchdog_hw_done(void *drv_priv, u8 *cmd, u32 cmd_len, enum rtw_phl_status status)
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{
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struct phl_info_t *phl_info = (struct phl_info_t *)cmd;
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_phl_watchdog_post_action(phl_info);
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_phl_trigger_next_watchdog(phl_info);
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}
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static enum rtw_phl_status
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_phl_watchdog_hw_cmd(struct phl_info_t *phl_info,
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enum phl_cmd_type cmd_type,
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u32 cmd_timeout)
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{
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enum rtw_phl_status phl_status = RTW_PHL_STATUS_FAILURE;
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if (cmd_type == PHL_CMD_DIRECTLY) {
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phl_status = phl_watchdog_hw_cmd_hdl(phl_info, RTW_PHL_STATUS_SUCCESS);
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goto _exit;
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}
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/* watchdog dont care hw_band */
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phl_status = phl_cmd_enqueue(phl_info,
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HW_BAND_0,
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MSG_EVT_HW_WATCHDOG,
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(u8 *)phl_info,
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0,
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_phl_watchdog_hw_done,
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cmd_type,
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cmd_timeout);
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if (is_cmd_failure(phl_status)) {
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/* Send cmd success, but wait cmd fail*/
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} else if (phl_status != RTW_PHL_STATUS_SUCCESS) {
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/* Send cmd fail */
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phl_status = RTW_PHL_STATUS_FAILURE;
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}
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_exit:
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return phl_status;
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}
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static void _phl_watchdog_sw_done(void *drv_priv, u8 *cmd, u32 cmd_len, enum rtw_phl_status status)
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{
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struct phl_info_t *phl_info = (struct phl_info_t *)cmd;
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enum rtw_phl_status psts = RTW_PHL_STATUS_FAILURE;
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bool set_timer = true;
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if (true == phl_disp_eng_is_fg_empty(phl_info, HW_BAND_MAX)) {
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/* send watchdog cmd to request privilege of I/O */
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psts = _phl_watchdog_hw_cmd(phl_info, PHL_CMD_NO_WAIT, 0);
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if (psts != RTW_PHL_STATUS_FAILURE)
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set_timer = false;
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} else {
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PHL_TRACE(COMP_PHL_DBG, _PHL_DEBUG_, "%s: skip watchdog\n",
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__FUNCTION__);
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}
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if (set_timer)
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_phl_trigger_next_watchdog(phl_info);
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}
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static enum rtw_phl_status
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_phl_watchdog_sw_cmd(struct phl_info_t *phl_info,
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enum phl_cmd_type cmd_type,
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u32 cmd_timeout)
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{
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enum rtw_phl_status phl_status = RTW_PHL_STATUS_FAILURE;
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if (cmd_type == PHL_CMD_DIRECTLY) {
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phl_status = phl_watchdog_sw_cmd_hdl(phl_info, RTW_PHL_STATUS_SUCCESS);
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goto _exit;
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}
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/* watchdog dont care hw_band */
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phl_status = phl_cmd_enqueue(phl_info,
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HW_BAND_0,
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MSG_EVT_SW_WATCHDOG,
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(u8 *)phl_info,
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0,
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_phl_watchdog_sw_done,
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cmd_type,
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cmd_timeout);
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if (is_cmd_failure(phl_status)) {
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/* Send cmd success, but wait cmd fail*/
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} else if (phl_status != RTW_PHL_STATUS_SUCCESS) {
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/* Send cmd fail */
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phl_status = RTW_PHL_STATUS_FAILURE;
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}
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_exit:
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return phl_status;
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}
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#endif
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static void _phl_watchdog_timer_expired(void *context)
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{
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#ifdef CONFIG_CMD_DISP
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struct phl_info_t *phl_info = (struct phl_info_t *)context;
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enum rtw_phl_status psts = RTW_PHL_STATUS_FAILURE;
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bool set_timer = true;
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/* phl sw watchdog */
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_phl_watchdog_sw(phl_info);
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psts = _phl_watchdog_sw_cmd(phl_info, PHL_CMD_NO_WAIT, 0);
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if (psts != RTW_PHL_STATUS_FAILURE)
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set_timer = false;
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if (set_timer)
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_phl_trigger_next_watchdog(phl_info);
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#else
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PHL_TRACE(COMP_PHL_DBG, _PHL_ERR_, "%s: Not support watchdog\n", __FUNCTION__);
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#endif
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}
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enum rtw_phl_status
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phl_watchdog_hw_cmd_hdl(struct phl_info_t *phl_info, enum rtw_phl_status psts)
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{
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struct phl_watchdog *wdog = &(phl_info->wdog);
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if (false == is_cmd_failure(psts)) {
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_phl_watchdog_hw(phl_info);
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if (NULL != wdog->core_hw_wdog)
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wdog->core_hw_wdog(phl_to_drvpriv(phl_info));
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}
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return RTW_PHL_STATUS_SUCCESS;
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}
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enum rtw_phl_status
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phl_watchdog_sw_cmd_hdl(struct phl_info_t *phl_info, enum rtw_phl_status psts)
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{
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struct phl_watchdog *wdog = &(phl_info->wdog);
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if (false == is_cmd_failure(psts)) {
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if (NULL != wdog->core_sw_wdog)
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wdog->core_sw_wdog(phl_to_drvpriv(phl_info));
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}
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return RTW_PHL_STATUS_SUCCESS;
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}
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void rtw_phl_watchdog_init(void *phl,
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u16 period,
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void (*core_sw_wdog)(void *drv_priv),
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void (*core_hw_wdog)(void *drv_priv))
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{
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struct phl_info_t *phl_info = (struct phl_info_t *)phl;
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struct phl_watchdog *wdog = &(phl_info->wdog);
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wdog->state = WD_STATE_INIT;
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wdog->core_sw_wdog = core_sw_wdog;
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wdog->core_hw_wdog = core_hw_wdog;
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if (period > 0)
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wdog->period = period;
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else
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wdog->period = WDOG_PERIOD;
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_os_init_timer(phl_to_drvpriv(phl_info),
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&wdog->wdog_timer,
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_phl_watchdog_timer_expired,
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phl,
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"phl_watchdog_timer");
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}
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void rtw_phl_watchdog_deinit(void *phl)
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{
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struct phl_info_t *phl_info = (struct phl_info_t *)phl;
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struct phl_watchdog *wdog = &(phl_info->wdog);
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_os_release_timer(phl_to_drvpriv(phl_info), &wdog->wdog_timer);
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}
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void rtw_phl_watchdog_start(void *phl)
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{
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struct phl_info_t *phl_info = (struct phl_info_t *)phl;
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struct phl_watchdog *wdog = &(phl_info->wdog);
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wdog->state = WD_STATE_STARTED;
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_phl_trigger_next_watchdog(phl_info);
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}
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void rtw_phl_watchdog_stop(void *phl)
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{
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struct phl_info_t *phl_info = (struct phl_info_t *)phl;
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struct phl_watchdog *wdog = &(phl_info->wdog);
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PHL_INFO("%s\n", __func__);
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wdog->state = WD_STATE_STOP;
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_os_cancel_timer(phl_to_drvpriv(phl_info), &wdog->wdog_timer);
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}
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