2774f20680
Import rtw88 based on wireless-testing at 5d5d68bcff1f7ff27ba0b938a4df5849849b47e3 with adjustments for FreeBSD. While our version of the driver has knowledge about the incapablity of DMA above 4GB we do see errors if people have more than that often already showing when laoding firmware. The problem for that is currently believed to be outside this driver so importing it anyway for now. Given the lack of full license texts on non-local files this is imported under the draft policy for handling SPDX files (D29226). [1] Approved by: core (imp) [1] MFC after: 2 weeks
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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