108 lines
2.3 KiB
C
108 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
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/* Copyright(c) 2018-2019 Realtek Corporation
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*/
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#include "main.h"
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#include "util.h"
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#include "reg.h"
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bool check_hw_ready(struct rtw_dev *rtwdev, u32 addr, u32 mask, u32 target)
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{
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u32 cnt;
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for (cnt = 0; cnt < 1000; cnt++) {
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if (rtw_read32_mask(rtwdev, addr, mask) == target)
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return true;
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udelay(10);
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}
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return false;
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}
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EXPORT_SYMBOL(check_hw_ready);
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bool ltecoex_read_reg(struct rtw_dev *rtwdev, u16 offset, u32 *val)
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{
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struct rtw_chip_info *chip = rtwdev->chip;
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const struct rtw_ltecoex_addr *ltecoex = chip->ltecoex_addr;
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if (!check_hw_ready(rtwdev, ltecoex->ctrl, LTECOEX_READY, 1))
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return false;
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rtw_write32(rtwdev, ltecoex->ctrl, 0x800F0000 | offset);
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*val = rtw_read32(rtwdev, ltecoex->rdata);
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return true;
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}
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bool ltecoex_reg_write(struct rtw_dev *rtwdev, u16 offset, u32 value)
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{
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struct rtw_chip_info *chip = rtwdev->chip;
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const struct rtw_ltecoex_addr *ltecoex = chip->ltecoex_addr;
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if (!check_hw_ready(rtwdev, ltecoex->ctrl, LTECOEX_READY, 1))
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return false;
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rtw_write32(rtwdev, ltecoex->wdata, value);
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rtw_write32(rtwdev, ltecoex->ctrl, 0xC00F0000 | offset);
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return true;
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}
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void rtw_restore_reg(struct rtw_dev *rtwdev,
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struct rtw_backup_info *bckp, u32 num)
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{
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u8 len;
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u32 reg;
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u32 val;
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int i;
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for (i = 0; i < num; i++, bckp++) {
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len = bckp->len;
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reg = bckp->reg;
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val = bckp->val;
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switch (len) {
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case 1:
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rtw_write8(rtwdev, reg, (u8)val);
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break;
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case 2:
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rtw_write16(rtwdev, reg, (u16)val);
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break;
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case 4:
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rtw_write32(rtwdev, reg, (u32)val);
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break;
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default:
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break;
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}
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}
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}
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EXPORT_SYMBOL(rtw_restore_reg);
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void rtw_desc_to_mcsrate(u16 rate, u8 *mcs, u8 *nss)
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{
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if (rate <= DESC_RATE54M)
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return;
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if (rate >= DESC_RATEVHT1SS_MCS0 &&
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rate <= DESC_RATEVHT1SS_MCS9) {
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*nss = 1;
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*mcs = rate - DESC_RATEVHT1SS_MCS0;
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} else if (rate >= DESC_RATEVHT2SS_MCS0 &&
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rate <= DESC_RATEVHT2SS_MCS9) {
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*nss = 2;
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*mcs = rate - DESC_RATEVHT2SS_MCS0;
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} else if (rate >= DESC_RATEVHT3SS_MCS0 &&
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rate <= DESC_RATEVHT3SS_MCS9) {
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*nss = 3;
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*mcs = rate - DESC_RATEVHT3SS_MCS0;
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} else if (rate >= DESC_RATEVHT4SS_MCS0 &&
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rate <= DESC_RATEVHT4SS_MCS9) {
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*nss = 4;
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*mcs = rate - DESC_RATEVHT4SS_MCS0;
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} else if (rate >= DESC_RATEMCS0 &&
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rate <= DESC_RATEMCS15) {
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*mcs = rate - DESC_RATEMCS0;
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}
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}
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