/******************************************************************************
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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 _HAL_TRX_MIT_C_
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#include "hal_headers.h"
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static void
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_hal_trx_mit_timer_convert(u32 timer, u8 *mul_ptr,
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enum mac_ax_trx_mitigation_timer_unit *unit_ptr)
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{
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/* timer = mul * unit */
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const enum mac_ax_trx_mitigation_timer_unit UNIT_ARR[] = {
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MAC_AX_MIT_64US, MAC_AX_MIT_128US, MAC_AX_MIT_256US,
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MAC_AX_MIT_512US};
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const u8 UNIT_EXP_ARR[] = {6, 7, 8, 9}; /* 2^exp = unit */
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const u8 UNIT_ARR_LEN = 4;
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const u8 MUL_MAX = 0xff; /* 8 bits for mul */
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u32 timer_ = 0;
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u8 idx;
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for (idx = 0; idx < UNIT_ARR_LEN; idx++) {
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timer_ = timer >> UNIT_EXP_ARR[idx];
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if (timer_ <= MUL_MAX)
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break;
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}
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if (timer_ > MUL_MAX)
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*mul_ptr = MUL_MAX;
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else
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*mul_ptr = (u8)timer_;
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if (idx < UNIT_ARR_LEN)
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*unit_ptr = UNIT_ARR[idx];
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else
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*unit_ptr = UNIT_ARR[UNIT_ARR_LEN - 1];
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}
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enum rtw_hal_status rtw_hal_pcie_trx_mit(void *hal, u32 tx_timer, u8 tx_counter,
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u32 rx_timer, u8 rx_counter)
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{
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struct hal_info_t *hal_info = (struct hal_info_t *)hal;
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struct mac_ax_pcie_trx_mitigation mit_info;
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struct mac_ax_txdma_ch_map txch_map;
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struct mac_ax_rxdma_ch_map rxch_map;
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/* tx */
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txch_map.ch0 = MAC_AX_PCIE_DISABLE;
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txch_map.ch1 = MAC_AX_PCIE_DISABLE;
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txch_map.ch2 = MAC_AX_PCIE_DISABLE;
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txch_map.ch3 = MAC_AX_PCIE_DISABLE;
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txch_map.ch4 = MAC_AX_PCIE_DISABLE;
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txch_map.ch5 = MAC_AX_PCIE_DISABLE;
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txch_map.ch6 = MAC_AX_PCIE_DISABLE;
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txch_map.ch7 = MAC_AX_PCIE_DISABLE;
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txch_map.ch8 = MAC_AX_PCIE_DISABLE;
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txch_map.ch9 = MAC_AX_PCIE_DISABLE;
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txch_map.ch10 = MAC_AX_PCIE_DISABLE;
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txch_map.ch11 = MAC_AX_PCIE_DISABLE;
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txch_map.ch12 = MAC_AX_PCIE_DISABLE;
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mit_info.txch_map = &txch_map;
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mit_info.tx_counter = tx_counter;
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_hal_trx_mit_timer_convert(tx_timer, &(mit_info.tx_timer),
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&(mit_info.tx_timer_unit));
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PHL_INFO(
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"%s :: mit_info.tx_timer == %d, mit_info.tx_timer_unit == %d\n",
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__func__, mit_info.tx_timer, mit_info.tx_timer_unit);
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/* tx - END */
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/* rx */
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rxch_map.rxq = MAC_AX_PCIE_ENABLE;
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rxch_map.rpq = MAC_AX_PCIE_ENABLE;
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mit_info.rxch_map = &rxch_map;
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mit_info.rx_counter = rx_counter;
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_hal_trx_mit_timer_convert(rx_timer, &(mit_info.rx_timer),
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&(mit_info.rx_timer_unit));
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PHL_INFO(
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"%s :: mit_info.rx_timer == %d, mit_info.rx_timer_unit == %d\n",
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__func__, mit_info.rx_timer, mit_info.rx_timer_unit);
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/* rx - END */
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if (rtw_hal_mac_pcie_trx_mit(hal_info, &mit_info) !=
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RTW_HAL_STATUS_SUCCESS) {
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PHL_INFO(
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"%s :: failed to config pcie trx interrupt mitigation\n",
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__func__);
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return RTW_HAL_STATUS_FAILURE;
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}
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return RTW_HAL_STATUS_SUCCESS;
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}
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