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449be86670
In the current design, various chip functions and tables are built into rtw88 core. That causes kernel to load its functionalities even if a chip isn't currently used. We plan to make each chip's functionalities a separate kernel module to reduce rtw88 core. And kernel will be able to load the necessary. Before extracting chip functionalities, we export symbols inside rtw88 core which will be used in chip modules. Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com> Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200515052327.31874-2-yhchuang@realtek.com
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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