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