diff options
author | Daniel Golle <daniel@makrotopia.org> | 2022-07-28 13:40:12 +0200 |
---|---|---|
committer | Daniel Golle <daniel@makrotopia.org> | 2022-09-19 02:48:26 +0100 |
commit | 7c459ac1d5a9a5c507afd7a3205dccfad20883d1 (patch) | |
tree | 24dda31482c091b5583c1d414433b2c2b4407ea4 /package/kernel/mac80211/patches/rt2x00/010-rt2x00-add-TX-LOFT-calibration-for-MT7620.patch | |
parent | d004110ef7b6a656b59ea7a5ca4a3deb4fc7ef99 (diff) | |
download | upstream-7c459ac1d5a9a5c507afd7a3205dccfad20883d1.tar.gz upstream-7c459ac1d5a9a5c507afd7a3205dccfad20883d1.tar.bz2 upstream-7c459ac1d5a9a5c507afd7a3205dccfad20883d1.zip |
mac80211: rt2x00: experimental improvements for MT7620 wifi
Serge Vasilugin reports:
To improve mt7620 built-in wifi performance some changes:
1. Correct BW20/BW40 switching (see comments with mark (1))
2. Correct TX_SW_CFG1 MAC reg from v3 of vendor driver see
https://gitlab.com/dm38/padavan-ng/-/blob/master/trunk/proprietary/rt_wifi/rtpci/3.0.X.X/mt76x2/chips/rt6352.c#L531
3. Set bbp66 for all chains.
4. US_CYC_CNT init based on Programming guide, default value was 33 (pci),
set chipset bus clock with fallback to cpu clock/3.
5. Don't overwrite default values for mt7620.
6. Correct some typos.
7. Add support for external LNA:
a) RF and BBP regs never be corrected for this mode
b) eLNA is driven the same way as ePA with mt7620's pin PA
but vendor driver explicitly pin PA to gpio mode (for forrect calibration?)
so I'm not sure that request for pa_pin in dts-file will be enough
First 5 changes (really 2) improve performance for boards w/o eLNA/ePA.
Changes 7 add support for eLNA
Configuration w/o eLAN/ePA and with eLNA show results
tx/rx (from router point of view) for each stream:
35-40/30-35 Mbps for HT20
65-70/60-65 Mbps for HT40
Yes. Max results for 2T2R client is 140-145/135-140
with peaks 160/150, It correspond to mediatek driver results.
Boards with ePA untested.
Reported-by: Serge Vasilugin <vasilugin@yandex.ru>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
[directly include v3 of the patchset submitted upstream]
(cherry picked from commit 31a6605de04218e1c04bd5c2436c24d7d1c07506)
(cherry picked from commit e785ca05e9f0502894772f5df92192b816ba5d7c)
(cherry picked from commit 412fcf3d4400f84551f3ead0514834c62d94a251)
Diffstat (limited to 'package/kernel/mac80211/patches/rt2x00/010-rt2x00-add-TX-LOFT-calibration-for-MT7620.patch')
-rw-r--r-- | package/kernel/mac80211/patches/rt2x00/010-rt2x00-add-TX-LOFT-calibration-for-MT7620.patch | 982 |
1 files changed, 982 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/rt2x00/010-rt2x00-add-TX-LOFT-calibration-for-MT7620.patch b/package/kernel/mac80211/patches/rt2x00/010-rt2x00-add-TX-LOFT-calibration-for-MT7620.patch new file mode 100644 index 0000000000..bb01ff1dca --- /dev/null +++ b/package/kernel/mac80211/patches/rt2x00/010-rt2x00-add-TX-LOFT-calibration-for-MT7620.patch @@ -0,0 +1,982 @@ +From patchwork Sat Sep 17 20:28:43 2022 +Content-Type: text/plain; charset="utf-8" +MIME-Version: 1.0 +Content-Transfer-Encoding: 8bit +X-Patchwork-Submitter: Daniel Golle <daniel@makrotopia.org> +X-Patchwork-Id: 12979251 +X-Patchwork-Delegate: kvalo@adurom.com +Return-Path: <linux-wireless-owner@kernel.org> +Date: Sat, 17 Sep 2022 21:28:43 +0100 +From: Daniel Golle <daniel@makrotopia.org> +To: linux-wireless@vger.kernel.org, Stanislaw Gruszka <stf_xl@wp.pl>, + Helmut Schaa <helmut.schaa@googlemail.com> +Cc: Kalle Valo <kvalo@kernel.org>, + "David S. Miller" <davem@davemloft.net>, + Eric Dumazet <edumazet@google.com>, + Jakub Kicinski <kuba@kernel.org>, + Paolo Abeni <pabeni@redhat.com>, + Johannes Berg <johannes.berg@intel.com> +Subject: [PATCH v3 10/16] rt2x00: add TX LOFT calibration for MT7620 +Message-ID: + <d9295a9138a1f552b648aacb84e1419d38f5c896.1663445157.git.daniel@makrotopia.org> +References: <cover.1663445157.git.daniel@makrotopia.org> +MIME-Version: 1.0 +Content-Disposition: inline +In-Reply-To: <cover.1663445157.git.daniel@makrotopia.org> +Precedence: bulk +List-ID: <linux-wireless.vger.kernel.org> +X-Mailing-List: linux-wireless@vger.kernel.org + +From: Tomislav Požega <pozega.tomislav@gmail.com> + +Add TX LOFT calibration from mtk driver. + +Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com> +Signed-off-by: Daniel Golle <daniel@makrotopia.org> +--- +v2: use helper functions, make tables static const, remove useless + debug prints +v3: don't export function not used anywhere else +Reported-by: kernel test robot <lkp@intel.com> + + .../net/wireless/ralink/rt2x00/rt2800lib.c | 902 ++++++++++++++++++ + .../net/wireless/ralink/rt2x00/rt2800lib.h | 10 + + 2 files changed, 912 insertions(+) + +--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c ++++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +@@ -9041,6 +9041,907 @@ restore_value: + rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, savemacsysctrl); + } + ++static void rt2800_rf_configstore(struct rt2x00_dev *rt2x00dev, ++ struct rf_reg_pair rf_reg_record[][13], u8 chain) ++{ ++ u8 rfvalue = 0; ++ ++ if (chain == CHAIN_0) { ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 0, 1); ++ rf_reg_record[CHAIN_0][0].bank = 0; ++ rf_reg_record[CHAIN_0][0].reg = 1; ++ rf_reg_record[CHAIN_0][0].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 0, 2); ++ rf_reg_record[CHAIN_0][1].bank = 0; ++ rf_reg_record[CHAIN_0][1].reg = 2; ++ rf_reg_record[CHAIN_0][1].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 0, 35); ++ rf_reg_record[CHAIN_0][2].bank = 0; ++ rf_reg_record[CHAIN_0][2].reg = 35; ++ rf_reg_record[CHAIN_0][2].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 0, 42); ++ rf_reg_record[CHAIN_0][3].bank = 0; ++ rf_reg_record[CHAIN_0][3].reg = 42; ++ rf_reg_record[CHAIN_0][3].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 4, 0); ++ rf_reg_record[CHAIN_0][4].bank = 4; ++ rf_reg_record[CHAIN_0][4].reg = 0; ++ rf_reg_record[CHAIN_0][4].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 4, 2); ++ rf_reg_record[CHAIN_0][5].bank = 4; ++ rf_reg_record[CHAIN_0][5].reg = 2; ++ rf_reg_record[CHAIN_0][5].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 4, 34); ++ rf_reg_record[CHAIN_0][6].bank = 4; ++ rf_reg_record[CHAIN_0][6].reg = 34; ++ rf_reg_record[CHAIN_0][6].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 5, 3); ++ rf_reg_record[CHAIN_0][7].bank = 5; ++ rf_reg_record[CHAIN_0][7].reg = 3; ++ rf_reg_record[CHAIN_0][7].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 5, 4); ++ rf_reg_record[CHAIN_0][8].bank = 5; ++ rf_reg_record[CHAIN_0][8].reg = 4; ++ rf_reg_record[CHAIN_0][8].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 5, 17); ++ rf_reg_record[CHAIN_0][9].bank = 5; ++ rf_reg_record[CHAIN_0][9].reg = 17; ++ rf_reg_record[CHAIN_0][9].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 5, 18); ++ rf_reg_record[CHAIN_0][10].bank = 5; ++ rf_reg_record[CHAIN_0][10].reg = 18; ++ rf_reg_record[CHAIN_0][10].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 5, 19); ++ rf_reg_record[CHAIN_0][11].bank = 5; ++ rf_reg_record[CHAIN_0][11].reg = 19; ++ rf_reg_record[CHAIN_0][11].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 5, 20); ++ rf_reg_record[CHAIN_0][12].bank = 5; ++ rf_reg_record[CHAIN_0][12].reg = 20; ++ rf_reg_record[CHAIN_0][12].value = rfvalue; ++ } else if (chain == CHAIN_1) { ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 0, 1); ++ rf_reg_record[CHAIN_1][0].bank = 0; ++ rf_reg_record[CHAIN_1][0].reg = 1; ++ rf_reg_record[CHAIN_1][0].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 0, 2); ++ rf_reg_record[CHAIN_1][1].bank = 0; ++ rf_reg_record[CHAIN_1][1].reg = 2; ++ rf_reg_record[CHAIN_1][1].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 0, 35); ++ rf_reg_record[CHAIN_1][2].bank = 0; ++ rf_reg_record[CHAIN_1][2].reg = 35; ++ rf_reg_record[CHAIN_1][2].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 0, 42); ++ rf_reg_record[CHAIN_1][3].bank = 0; ++ rf_reg_record[CHAIN_1][3].reg = 42; ++ rf_reg_record[CHAIN_1][3].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 6, 0); ++ rf_reg_record[CHAIN_1][4].bank = 6; ++ rf_reg_record[CHAIN_1][4].reg = 0; ++ rf_reg_record[CHAIN_1][4].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 6, 2); ++ rf_reg_record[CHAIN_1][5].bank = 6; ++ rf_reg_record[CHAIN_1][5].reg = 2; ++ rf_reg_record[CHAIN_1][5].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 6, 34); ++ rf_reg_record[CHAIN_1][6].bank = 6; ++ rf_reg_record[CHAIN_1][6].reg = 34; ++ rf_reg_record[CHAIN_1][6].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 7, 3); ++ rf_reg_record[CHAIN_1][7].bank = 7; ++ rf_reg_record[CHAIN_1][7].reg = 3; ++ rf_reg_record[CHAIN_1][7].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 7, 4); ++ rf_reg_record[CHAIN_1][8].bank = 7; ++ rf_reg_record[CHAIN_1][8].reg = 4; ++ rf_reg_record[CHAIN_1][8].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 7, 17); ++ rf_reg_record[CHAIN_1][9].bank = 7; ++ rf_reg_record[CHAIN_1][9].reg = 17; ++ rf_reg_record[CHAIN_1][9].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 7, 18); ++ rf_reg_record[CHAIN_1][10].bank = 7; ++ rf_reg_record[CHAIN_1][10].reg = 18; ++ rf_reg_record[CHAIN_1][10].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 7, 19); ++ rf_reg_record[CHAIN_1][11].bank = 7; ++ rf_reg_record[CHAIN_1][11].reg = 19; ++ rf_reg_record[CHAIN_1][11].value = rfvalue; ++ rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 7, 20); ++ rf_reg_record[CHAIN_1][12].bank = 7; ++ rf_reg_record[CHAIN_1][12].reg = 20; ++ rf_reg_record[CHAIN_1][12].value = rfvalue; ++ } else { ++ rt2x00_warn(rt2x00dev, "Unknown chain = %u\n", chain); ++ } ++} ++ ++static void rt2800_rf_configrecover(struct rt2x00_dev *rt2x00dev, ++ struct rf_reg_pair rf_record[][13]) ++{ ++ u8 chain_index = 0, record_index = 0; ++ u8 bank = 0, rf_register = 0, value = 0; ++ ++ for (chain_index = 0; chain_index < 2; chain_index++) { ++ for (record_index = 0; record_index < 13; record_index++) { ++ bank = rf_record[chain_index][record_index].bank; ++ rf_register = rf_record[chain_index][record_index].reg; ++ value = rf_record[chain_index][record_index].value; ++ rt2800_rfcsr_write_bank(rt2x00dev, bank, rf_register, value); ++ rt2x00_dbg(rt2x00dev, "bank: %d, rf_register: %d, value: %x\n", ++ bank, rf_register, value); ++ } ++ } ++} ++ ++static void rt2800_setbbptonegenerator(struct rt2x00_dev *rt2x00dev) ++{ ++ rt2800_bbp_write(rt2x00dev, 158, 0xAA); ++ rt2800_bbp_write(rt2x00dev, 159, 0x00); ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0xAB); ++ rt2800_bbp_write(rt2x00dev, 159, 0x0A); ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0xAC); ++ rt2800_bbp_write(rt2x00dev, 159, 0x3F); ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0xAD); ++ rt2800_bbp_write(rt2x00dev, 159, 0x3F); ++ ++ rt2800_bbp_write(rt2x00dev, 244, 0x40); ++} ++ ++static u32 rt2800_do_fft_accumulation(struct rt2x00_dev *rt2x00dev, u8 tidx, u8 read_neg) ++{ ++ u32 macvalue = 0; ++ int fftout_i = 0, fftout_q = 0; ++ u32 ptmp = 0, pint = 0; ++ u8 bbp = 0; ++ u8 tidxi; ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0x00); ++ rt2800_bbp_write(rt2x00dev, 159, 0x9b); ++ ++ bbp = 0x9b; ++ ++ while (bbp == 0x9b) { ++ usleep_range(10, 50); ++ bbp = rt2800_bbp_read(rt2x00dev, 159); ++ bbp = bbp & 0xff; ++ } ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0xba); ++ rt2800_bbp_write(rt2x00dev, 159, tidx); ++ rt2800_bbp_write(rt2x00dev, 159, tidx); ++ rt2800_bbp_write(rt2x00dev, 159, tidx); ++ ++ macvalue = rt2800_register_read(rt2x00dev, 0x057C); ++ ++ fftout_i = (macvalue >> 16); ++ fftout_i = (fftout_i & 0x8000) ? (fftout_i - 0x10000) : fftout_i; ++ fftout_q = (macvalue & 0xffff); ++ fftout_q = (fftout_q & 0x8000) ? (fftout_q - 0x10000) : fftout_q; ++ ptmp = (fftout_i * fftout_i); ++ ptmp = ptmp + (fftout_q * fftout_q); ++ pint = ptmp; ++ rt2x00_dbg(rt2x00dev, "I = %d, Q = %d, power = %x\n", fftout_i, fftout_q, pint); ++ if (read_neg) { ++ pint = pint >> 1; ++ tidxi = 0x40 - tidx; ++ tidxi = tidxi & 0x3f; ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0xba); ++ rt2800_bbp_write(rt2x00dev, 159, tidxi); ++ rt2800_bbp_write(rt2x00dev, 159, tidxi); ++ rt2800_bbp_write(rt2x00dev, 159, tidxi); ++ ++ macvalue = rt2800_register_read(rt2x00dev, 0x057C); ++ ++ fftout_i = (macvalue >> 16); ++ fftout_i = (fftout_i & 0x8000) ? (fftout_i - 0x10000) : fftout_i; ++ fftout_q = (macvalue & 0xffff); ++ fftout_q = (fftout_q & 0x8000) ? (fftout_q - 0x10000) : fftout_q; ++ ptmp = (fftout_i * fftout_i); ++ ptmp = ptmp + (fftout_q * fftout_q); ++ ptmp = ptmp >> 1; ++ pint = pint + ptmp; ++ } ++ ++ return pint; ++} ++ ++static u32 rt2800_read_fft_accumulation(struct rt2x00_dev *rt2x00dev, u8 tidx) ++{ ++ u32 macvalue = 0; ++ int fftout_i = 0, fftout_q = 0; ++ u32 ptmp = 0, pint = 0; ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0xBA); ++ rt2800_bbp_write(rt2x00dev, 159, tidx); ++ rt2800_bbp_write(rt2x00dev, 159, tidx); ++ rt2800_bbp_write(rt2x00dev, 159, tidx); ++ ++ macvalue = rt2800_register_read(rt2x00dev, 0x057C); ++ ++ fftout_i = (macvalue >> 16); ++ fftout_i = (fftout_i & 0x8000) ? (fftout_i - 0x10000) : fftout_i; ++ fftout_q = (macvalue & 0xffff); ++ fftout_q = (fftout_q & 0x8000) ? (fftout_q - 0x10000) : fftout_q; ++ ptmp = (fftout_i * fftout_i); ++ ptmp = ptmp + (fftout_q * fftout_q); ++ pint = ptmp; ++ ++ return pint; ++} ++ ++static void rt2800_write_dc(struct rt2x00_dev *rt2x00dev, u8 ch_idx, u8 alc, u8 iorq, u8 dc) ++{ ++ u8 bbp = 0; ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0xb0); ++ bbp = alc | 0x80; ++ rt2800_bbp_write(rt2x00dev, 159, bbp); ++ ++ if (ch_idx == 0) ++ bbp = (iorq == 0) ? 0xb1 : 0xb2; ++ else ++ bbp = (iorq == 0) ? 0xb8 : 0xb9; ++ ++ rt2800_bbp_write(rt2x00dev, 158, bbp); ++ bbp = dc; ++ rt2800_bbp_write(rt2x00dev, 159, bbp); ++} ++ ++static void rt2800_loft_search(struct rt2x00_dev *rt2x00dev, u8 ch_idx, ++ u8 alc_idx, u8 dc_result[][RF_ALC_NUM][2]) ++{ ++ u32 p0 = 0, p1 = 0, pf = 0; ++ char idx0 = 0, idx1 = 0; ++ u8 idxf[] = {0x00, 0x00}; ++ u8 ibit = 0x20; ++ u8 iorq; ++ char bidx; ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0xb0); ++ rt2800_bbp_write(rt2x00dev, 159, 0x80); ++ ++ for (bidx = 5; bidx >= 0; bidx--) { ++ for (iorq = 0; iorq <= 1; iorq++) { ++ if (idxf[iorq] == 0x20) { ++ idx0 = 0x20; ++ p0 = pf; ++ } else { ++ idx0 = idxf[iorq] - ibit; ++ idx0 = idx0 & 0x3F; ++ rt2800_write_dc(rt2x00dev, ch_idx, 0, iorq, idx0); ++ p0 = rt2800_do_fft_accumulation(rt2x00dev, 0x0A, 0); ++ } ++ ++ idx1 = idxf[iorq] + (bidx == 5 ? 0 : ibit); ++ idx1 = idx1 & 0x3F; ++ rt2800_write_dc(rt2x00dev, ch_idx, 0, iorq, idx1); ++ p1 = rt2800_do_fft_accumulation(rt2x00dev, 0x0A, 0); ++ ++ rt2x00_dbg(rt2x00dev, "alc=%u, IorQ=%u, idx_final=%2x\n", ++ alc_idx, iorq, idxf[iorq]); ++ rt2x00_dbg(rt2x00dev, "p0=%x, p1=%x, pf=%x, idx_0=%x, idx_1=%x, ibit=%x\n", ++ p0, p1, pf, idx0, idx1, ibit); ++ ++ if (bidx != 5 && pf <= p0 && pf < p1) { ++ idxf[iorq] = idxf[iorq]; ++ } else if (p0 < p1) { ++ pf = p0; ++ idxf[iorq] = idx0 & 0x3F; ++ } else { ++ pf = p1; ++ idxf[iorq] = idx1 & 0x3F; ++ } ++ rt2x00_dbg(rt2x00dev, "IorQ=%u, idx_final[%u]:%x, pf:%8x\n", ++ iorq, iorq, idxf[iorq], pf); ++ ++ rt2800_write_dc(rt2x00dev, ch_idx, 0, iorq, idxf[iorq]); ++ } ++ ibit = ibit >> 1; ++ } ++ dc_result[ch_idx][alc_idx][0] = idxf[0]; ++ dc_result[ch_idx][alc_idx][1] = idxf[1]; ++} ++ ++static void rt2800_iq_search(struct rt2x00_dev *rt2x00dev, u8 ch_idx, u8 *ges, u8 *pes) ++{ ++ u32 p0 = 0, p1 = 0, pf = 0; ++ char perr = 0, gerr = 0, iq_err = 0; ++ char pef = 0, gef = 0; ++ char psta, pend; ++ char gsta, gend; ++ ++ u8 ibit = 0x20; ++ u8 first_search = 0x00, touch_neg_max = 0x00; ++ char idx0 = 0, idx1 = 0; ++ u8 gop; ++ u8 bbp = 0; ++ char bidx; ++ ++ for (bidx = 5; bidx >= 1; bidx--) { ++ for (gop = 0; gop < 2; gop++) { ++ if (gop == 1 || bidx < 4) { ++ if (gop == 0) ++ iq_err = gerr; ++ else ++ iq_err = perr; ++ ++ first_search = (gop == 0) ? (bidx == 3) : (bidx == 5); ++ touch_neg_max = (gop) ? ((iq_err & 0x0F) == 0x08) : ++ ((iq_err & 0x3F) == 0x20); ++ ++ if (touch_neg_max) { ++ p0 = pf; ++ idx0 = iq_err; ++ } else { ++ idx0 = iq_err - ibit; ++ bbp = (ch_idx == 0) ? ((gop == 0) ? 0x28 : 0x29) : ++ ((gop == 0) ? 0x46 : 0x47); ++ ++ rt2800_bbp_write(rt2x00dev, 158, bbp); ++ rt2800_bbp_write(rt2x00dev, 159, idx0); ++ ++ p0 = rt2800_do_fft_accumulation(rt2x00dev, 0x14, 1); ++ } ++ ++ idx1 = iq_err + (first_search ? 0 : ibit); ++ idx1 = (gop == 0) ? (idx1 & 0x0F) : (idx1 & 0x3F); ++ ++ bbp = (ch_idx == 0) ? (gop == 0) ? 0x28 : 0x29 : ++ (gop == 0) ? 0x46 : 0x47; ++ ++ rt2800_bbp_write(rt2x00dev, 158, bbp); ++ rt2800_bbp_write(rt2x00dev, 159, idx1); ++ ++ p1 = rt2800_do_fft_accumulation(rt2x00dev, 0x14, 1); ++ ++ rt2x00_dbg(rt2x00dev, ++ "p0=%x, p1=%x, pwer_final=%x, idx0=%x, idx1=%x, iq_err=%x, gop=%d, ibit=%x\n", ++ p0, p1, pf, idx0, idx1, iq_err, gop, ibit); ++ ++ if (!(!first_search && pf <= p0 && pf < p1)) { ++ if (p0 < p1) { ++ pf = p0; ++ iq_err = idx0; ++ } else { ++ pf = p1; ++ iq_err = idx1; ++ } ++ } ++ ++ bbp = (ch_idx == 0) ? (gop == 0) ? 0x28 : 0x29 : ++ (gop == 0) ? 0x46 : 0x47; ++ ++ rt2800_bbp_write(rt2x00dev, 158, bbp); ++ rt2800_bbp_write(rt2x00dev, 159, iq_err); ++ ++ if (gop == 0) ++ gerr = iq_err; ++ else ++ perr = iq_err; ++ ++ rt2x00_dbg(rt2x00dev, "IQCalibration pf=%8x (%2x, %2x) !\n", ++ pf, gerr & 0x0F, perr & 0x3F); ++ } ++ } ++ ++ if (bidx > 0) ++ ibit = (ibit >> 1); ++ } ++ gerr = (gerr & 0x08) ? (gerr & 0x0F) - 0x10 : (gerr & 0x0F); ++ perr = (perr & 0x20) ? (perr & 0x3F) - 0x40 : (perr & 0x3F); ++ ++ gerr = (gerr < -0x07) ? -0x07 : (gerr > 0x05) ? 0x05 : gerr; ++ gsta = gerr - 1; ++ gend = gerr + 2; ++ ++ perr = (perr < -0x1f) ? -0x1f : (perr > 0x1d) ? 0x1d : perr; ++ psta = perr - 1; ++ pend = perr + 2; ++ ++ for (gef = gsta; gef <= gend; gef = gef + 1) ++ for (pef = psta; pef <= pend; pef = pef + 1) { ++ bbp = (ch_idx == 0) ? 0x28 : 0x46; ++ rt2800_bbp_write(rt2x00dev, 158, bbp); ++ rt2800_bbp_write(rt2x00dev, 159, gef & 0x0F); ++ ++ bbp = (ch_idx == 0) ? 0x29 : 0x47; ++ rt2800_bbp_write(rt2x00dev, 158, bbp); ++ rt2800_bbp_write(rt2x00dev, 159, pef & 0x3F); ++ ++ p1 = rt2800_do_fft_accumulation(rt2x00dev, 0x14, 1); ++ if (gef == gsta && pef == psta) { ++ pf = p1; ++ gerr = gef; ++ perr = pef; ++ } else if (pf > p1) { ++ pf = p1; ++ gerr = gef; ++ perr = pef; ++ } ++ rt2x00_dbg(rt2x00dev, "Fine IQCalibration p1=%8x pf=%8x (%2x, %2x) !\n", ++ p1, pf, gef & 0x0F, pef & 0x3F); ++ } ++ ++ ges[ch_idx] = gerr & 0x0F; ++ pes[ch_idx] = perr & 0x3F; ++} ++ ++static void rt2800_rf_aux_tx0_loopback(struct rt2x00_dev *rt2x00dev) ++{ ++ rt2800_rfcsr_write_bank(rt2x00dev, 0, 1, 0x21); ++ rt2800_rfcsr_write_bank(rt2x00dev, 0, 2, 0x10); ++ rt2800_rfcsr_write_bank(rt2x00dev, 0, 35, 0x00); ++ rt2800_rfcsr_write_bank(rt2x00dev, 0, 42, 0x1b); ++ rt2800_rfcsr_write_bank(rt2x00dev, 4, 0, 0x81); ++ rt2800_rfcsr_write_bank(rt2x00dev, 4, 2, 0x81); ++ rt2800_rfcsr_write_bank(rt2x00dev, 4, 34, 0xee); ++ rt2800_rfcsr_write_bank(rt2x00dev, 5, 3, 0x2d); ++ rt2800_rfcsr_write_bank(rt2x00dev, 5, 4, 0x2d); ++ rt2800_rfcsr_write_bank(rt2x00dev, 5, 17, 0x80); ++ rt2800_rfcsr_write_bank(rt2x00dev, 5, 18, 0xd7); ++ rt2800_rfcsr_write_bank(rt2x00dev, 5, 19, 0xa2); ++ rt2800_rfcsr_write_bank(rt2x00dev, 5, 20, 0x20); ++} ++ ++static void rt2800_rf_aux_tx1_loopback(struct rt2x00_dev *rt2x00dev) ++{ ++ rt2800_rfcsr_write_bank(rt2x00dev, 0, 1, 0x22); ++ rt2800_rfcsr_write_bank(rt2x00dev, 0, 2, 0x20); ++ rt2800_rfcsr_write_bank(rt2x00dev, 0, 35, 0x00); ++ rt2800_rfcsr_write_bank(rt2x00dev, 0, 42, 0x4b); ++ rt2800_rfcsr_write_bank(rt2x00dev, 6, 0, 0x81); ++ rt2800_rfcsr_write_bank(rt2x00dev, 6, 2, 0x81); ++ rt2800_rfcsr_write_bank(rt2x00dev, 6, 34, 0xee); ++ rt2800_rfcsr_write_bank(rt2x00dev, 7, 3, 0x2d); ++ rt2800_rfcsr_write_bank(rt2x00dev, 7, 4, 0x2d); ++ rt2800_rfcsr_write_bank(rt2x00dev, 7, 17, 0x80); ++ rt2800_rfcsr_write_bank(rt2x00dev, 7, 18, 0xd7); ++ rt2800_rfcsr_write_bank(rt2x00dev, 7, 19, 0xa2); ++ rt2800_rfcsr_write_bank(rt2x00dev, 7, 20, 0x20); ++} ++ ++static void rt2800_loft_iq_calibration(struct rt2x00_dev *rt2x00dev) ++{ ++ struct rf_reg_pair rf_store[CHAIN_NUM][13]; ++ u32 macorg1 = 0; ++ u32 macorg2 = 0; ++ u32 macorg3 = 0; ++ u32 macorg4 = 0; ++ u32 macorg5 = 0; ++ u32 orig528 = 0; ++ u32 orig52c = 0; ++ ++ u32 savemacsysctrl = 0; ++ u32 macvalue = 0; ++ u32 mac13b8 = 0; ++ u32 p0 = 0, p1 = 0; ++ u32 p0_idx10 = 0, p1_idx10 = 0; ++ ++ u8 rfvalue; ++ u8 loft_dc_search_result[CHAIN_NUM][RF_ALC_NUM][2]; ++ u8 ger[CHAIN_NUM], per[CHAIN_NUM]; ++ ++ u8 vga_gain[] = {14, 14}; ++ u8 bbp = 0, ch_idx = 0, rf_alc_idx = 0, idx = 0; ++ u8 bbpr30, rfb0r39, rfb0r42; ++ u8 bbpr1; ++ u8 bbpr4; ++ u8 bbpr241, bbpr242; ++ u8 count_step; ++ ++ static const u8 rf_gain[] = {0x00, 0x01, 0x02, 0x04, 0x08, 0x0c}; ++ static const u8 rfvga_gain_table[] = {0x24, 0x25, 0x26, 0x27, 0x28, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, ++ 0x31, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3F}; ++ static const u8 bbp_2324gain[] = {0x16, 0x14, 0x12, 0x10, 0x0c, 0x08}; ++ ++ savemacsysctrl = rt2800_register_read(rt2x00dev, MAC_SYS_CTRL); ++ macorg1 = rt2800_register_read(rt2x00dev, TX_PIN_CFG); ++ macorg2 = rt2800_register_read(rt2x00dev, RF_CONTROL0); ++ macorg3 = rt2800_register_read(rt2x00dev, RF_BYPASS0); ++ macorg4 = rt2800_register_read(rt2x00dev, RF_CONTROL3); ++ macorg5 = rt2800_register_read(rt2x00dev, RF_BYPASS3); ++ mac13b8 = rt2800_register_read(rt2x00dev, 0x13b8); ++ orig528 = rt2800_register_read(rt2x00dev, RF_CONTROL2); ++ orig52c = rt2800_register_read(rt2x00dev, RF_BYPASS2); ++ ++ macvalue = rt2800_register_read(rt2x00dev, MAC_SYS_CTRL); ++ macvalue &= (~0x04); ++ rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, macvalue); ++ ++ if (unlikely(rt2800_wait_bbp_rf_ready(rt2x00dev, MAC_STATUS_CFG_BBP_RF_BUSY_TX))) ++ rt2x00_warn(rt2x00dev, "RF TX busy in LOFT IQ calibration\n"); ++ ++ macvalue = rt2800_register_read(rt2x00dev, MAC_SYS_CTRL); ++ macvalue &= (~0x08); ++ rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, macvalue); ++ ++ if (unlikely(rt2800_wait_bbp_rf_ready(rt2x00dev, MAC_STATUS_CFG_BBP_RF_BUSY_RX))) ++ rt2x00_warn(rt2x00dev, "RF RX busy in LOFT IQ calibration\n"); ++ ++ for (ch_idx = 0; ch_idx < 2; ch_idx++) ++ rt2800_rf_configstore(rt2x00dev, rf_store, ch_idx); ++ ++ bbpr30 = rt2800_bbp_read(rt2x00dev, 30); ++ rfb0r39 = rt2800_rfcsr_read_bank(rt2x00dev, 0, 39); ++ rfb0r42 = rt2800_rfcsr_read_bank(rt2x00dev, 0, 42); ++ ++ rt2800_bbp_write(rt2x00dev, 30, 0x1F); ++ rt2800_rfcsr_write_bank(rt2x00dev, 0, 39, 0x80); ++ rt2800_rfcsr_write_bank(rt2x00dev, 0, 42, 0x5B); ++ ++ rt2800_bbp_write(rt2x00dev, 23, 0x00); ++ rt2800_bbp_write(rt2x00dev, 24, 0x00); ++ ++ rt2800_setbbptonegenerator(rt2x00dev); ++ ++ for (ch_idx = 0; ch_idx < 2; ch_idx++) { ++ rt2800_bbp_write(rt2x00dev, 23, 0x00); ++ rt2800_bbp_write(rt2x00dev, 24, 0x00); ++ rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, 0x00); ++ rt2800_register_write(rt2x00dev, TX_PIN_CFG, 0x0000000F); ++ rt2800_register_write(rt2x00dev, RF_CONTROL0, 0x00000004); ++ rt2800_register_write(rt2x00dev, RF_BYPASS0, 0x00003306); ++ rt2800_register_write(rt2x00dev, 0x13b8, 0x10); ++ udelay(1); ++ ++ if (ch_idx == 0) ++ rt2800_rf_aux_tx0_loopback(rt2x00dev); ++ else ++ rt2800_rf_aux_tx1_loopback(rt2x00dev); ++ ++ udelay(1); ++ ++ if (ch_idx == 0) ++ rt2800_register_write(rt2x00dev, RF_CONTROL0, 0x00001004); ++ else ++ rt2800_register_write(rt2x00dev, RF_CONTROL0, 0x00002004); ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0x05); ++ rt2800_bbp_write(rt2x00dev, 159, 0x00); ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0x01); ++ if (ch_idx == 0) ++ rt2800_bbp_write(rt2x00dev, 159, 0x00); ++ else ++ rt2800_bbp_write(rt2x00dev, 159, 0x01); ++ ++ vga_gain[ch_idx] = 18; ++ for (rf_alc_idx = 0; rf_alc_idx < 3; rf_alc_idx++) { ++ rt2800_bbp_write(rt2x00dev, 23, bbp_2324gain[rf_alc_idx]); ++ rt2800_bbp_write(rt2x00dev, 24, bbp_2324gain[rf_alc_idx]); ++ ++ macvalue = rt2800_register_read(rt2x00dev, RF_CONTROL3); ++ macvalue &= (~0x0000F1F1); ++ macvalue |= (rf_gain[rf_alc_idx] << 4); ++ macvalue |= (rf_gain[rf_alc_idx] << 12); ++ rt2800_register_write(rt2x00dev, RF_CONTROL3, macvalue); ++ macvalue = (0x0000F1F1); ++ rt2800_register_write(rt2x00dev, RF_BYPASS3, macvalue); ++ ++ if (rf_alc_idx == 0) { ++ rt2800_write_dc(rt2x00dev, ch_idx, 0, 1, 0x21); ++ for (; vga_gain[ch_idx] > 0; ++ vga_gain[ch_idx] = vga_gain[ch_idx] - 2) { ++ rfvalue = rfvga_gain_table[vga_gain[ch_idx]]; ++ rt2800_rfcsr_write_dccal(rt2x00dev, 3, rfvalue); ++ rt2800_rfcsr_write_dccal(rt2x00dev, 4, rfvalue); ++ rt2800_write_dc(rt2x00dev, ch_idx, 0, 1, 0x00); ++ rt2800_write_dc(rt2x00dev, ch_idx, 0, 0, 0x00); ++ p0 = rt2800_do_fft_accumulation(rt2x00dev, 0x0A, 0); ++ rt2800_write_dc(rt2x00dev, ch_idx, 0, 0, 0x21); ++ p1 = rt2800_do_fft_accumulation(rt2x00dev, 0x0A, 0); ++ rt2x00_dbg(rt2x00dev, "LOFT AGC %d %d\n", p0, p1); ++ if ((p0 < 7000 * 7000) && (p1 < (7000 * 7000))) ++ break; ++ } ++ ++ rt2800_write_dc(rt2x00dev, ch_idx, 0, 0, 0x00); ++ rt2800_write_dc(rt2x00dev, ch_idx, 0, 1, 0x00); ++ ++ rt2x00_dbg(rt2x00dev, "Used VGA %d %x\n", vga_gain[ch_idx], ++ rfvga_gain_table[vga_gain[ch_idx]]); ++ ++ if (vga_gain[ch_idx] < 0) ++ vga_gain[ch_idx] = 0; ++ } ++ ++ rfvalue = rfvga_gain_table[vga_gain[ch_idx]]; ++ ++ rt2800_rfcsr_write_dccal(rt2x00dev, 3, rfvalue); ++ rt2800_rfcsr_write_dccal(rt2x00dev, 4, rfvalue); ++ ++ rt2800_loft_search(rt2x00dev, ch_idx, rf_alc_idx, loft_dc_search_result); ++ } ++ } ++ ++ for (rf_alc_idx = 0; rf_alc_idx < 3; rf_alc_idx++) { ++ for (idx = 0; idx < 4; idx++) { ++ rt2800_bbp_write(rt2x00dev, 158, 0xB0); ++ bbp = (idx << 2) + rf_alc_idx; ++ rt2800_bbp_write(rt2x00dev, 159, bbp); ++ rt2x00_dbg(rt2x00dev, " ALC %2x,", bbp); ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0xb1); ++ bbp = loft_dc_search_result[CHAIN_0][rf_alc_idx][0x00]; ++ bbp = bbp & 0x3F; ++ rt2800_bbp_write(rt2x00dev, 159, bbp); ++ rt2x00_dbg(rt2x00dev, " I0 %2x,", bbp); ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0xb2); ++ bbp = loft_dc_search_result[CHAIN_0][rf_alc_idx][0x01]; ++ bbp = bbp & 0x3F; ++ rt2800_bbp_write(rt2x00dev, 159, bbp); ++ rt2x00_dbg(rt2x00dev, " Q0 %2x,", bbp); ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0xb8); ++ bbp = loft_dc_search_result[CHAIN_1][rf_alc_idx][0x00]; ++ bbp = bbp & 0x3F; ++ rt2800_bbp_write(rt2x00dev, 159, bbp); ++ rt2x00_dbg(rt2x00dev, " I1 %2x,", bbp); ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0xb9); ++ bbp = loft_dc_search_result[CHAIN_1][rf_alc_idx][0x01]; ++ bbp = bbp & 0x3F; ++ rt2800_bbp_write(rt2x00dev, 159, bbp); ++ rt2x00_dbg(rt2x00dev, " Q1 %2x\n", bbp); ++ } ++ } ++ ++ rt2800_bbp_write(rt2x00dev, 23, 0x00); ++ rt2800_bbp_write(rt2x00dev, 24, 0x00); ++ ++ rt2800_register_write(rt2x00dev, RF_CONTROL0, 0x04); ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0x00); ++ rt2800_bbp_write(rt2x00dev, 159, 0x00); ++ ++ bbp = 0x00; ++ rt2800_bbp_write(rt2x00dev, 244, 0x00); ++ ++ rt2800_bbp_write(rt2x00dev, 21, 0x01); ++ udelay(1); ++ rt2800_bbp_write(rt2x00dev, 21, 0x00); ++ ++ rt2800_rf_configrecover(rt2x00dev, rf_store); ++ ++ rt2800_register_write(rt2x00dev, TX_PIN_CFG, macorg1); ++ rt2800_register_write(rt2x00dev, RF_CONTROL0, 0x04); ++ rt2800_register_write(rt2x00dev, RF_CONTROL0, 0x00); ++ rt2800_register_write(rt2x00dev, RF_BYPASS0, 0x00); ++ rt2800_register_write(rt2x00dev, RF_CONTROL0, macorg2); ++ udelay(1); ++ rt2800_register_write(rt2x00dev, RF_BYPASS0, macorg3); ++ rt2800_register_write(rt2x00dev, RF_CONTROL3, macorg4); ++ rt2800_register_write(rt2x00dev, RF_BYPASS3, macorg5); ++ rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, savemacsysctrl); ++ rt2800_register_write(rt2x00dev, RF_CONTROL2, orig528); ++ rt2800_register_write(rt2x00dev, RF_BYPASS2, orig52c); ++ rt2800_register_write(rt2x00dev, 0x13b8, mac13b8); ++ ++ savemacsysctrl = rt2800_register_read(rt2x00dev, MAC_SYS_CTRL); ++ macorg1 = rt2800_register_read(rt2x00dev, TX_PIN_CFG); ++ macorg2 = rt2800_register_read(rt2x00dev, RF_CONTROL0); ++ macorg3 = rt2800_register_read(rt2x00dev, RF_BYPASS0); ++ macorg4 = rt2800_register_read(rt2x00dev, RF_CONTROL3); ++ macorg5 = rt2800_register_read(rt2x00dev, RF_BYPASS3); ++ ++ bbpr1 = rt2800_bbp_read(rt2x00dev, 1); ++ bbpr4 = rt2800_bbp_read(rt2x00dev, 4); ++ bbpr241 = rt2800_bbp_read(rt2x00dev, 241); ++ bbpr242 = rt2800_bbp_read(rt2x00dev, 242); ++ mac13b8 = rt2800_register_read(rt2x00dev, 0x13b8); ++ ++ macvalue = rt2800_register_read(rt2x00dev, MAC_SYS_CTRL); ++ macvalue &= (~0x04); ++ rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, macvalue); ++ ++ if (unlikely(rt2800_wait_bbp_rf_ready(rt2x00dev, MAC_STATUS_CFG_BBP_RF_BUSY_TX))) ++ rt2x00_warn(rt2x00dev, "RF TX busy in LOFT IQ calibration\n"); ++ ++ macvalue = rt2800_register_read(rt2x00dev, MAC_SYS_CTRL); ++ macvalue &= (~0x08); ++ rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, macvalue); ++ ++ if (unlikely(rt2800_wait_bbp_rf_ready(rt2x00dev, MAC_STATUS_CFG_BBP_RF_BUSY_RX))) ++ rt2x00_warn(rt2x00dev, "RF RX busy in LOFT IQ calibration\n"); ++ ++ if (test_bit(CAPABILITY_EXTERNAL_PA_TX0, &rt2x00dev->cap_flags)) { ++ rt2800_register_write(rt2x00dev, RF_CONTROL3, 0x00000101); ++ rt2800_register_write(rt2x00dev, RF_BYPASS3, 0x0000F1F1); ++ } ++ ++ rt2800_bbp_write(rt2x00dev, 23, 0x00); ++ rt2800_bbp_write(rt2x00dev, 24, 0x00); ++ ++ if (test_bit(CAPABILITY_EXTERNAL_PA_TX0, &rt2x00dev->cap_flags)) { ++ rt2800_bbp_write(rt2x00dev, 4, bbpr4 & (~0x18)); ++ rt2800_bbp_write(rt2x00dev, 21, 0x01); ++ udelay(1); ++ rt2800_bbp_write(rt2x00dev, 21, 0x00); ++ ++ rt2800_bbp_write(rt2x00dev, 241, 0x14); ++ rt2800_bbp_write(rt2x00dev, 242, 0x80); ++ rt2800_bbp_write(rt2x00dev, 244, 0x31); ++ } else { ++ rt2800_setbbptonegenerator(rt2x00dev); ++ } ++ ++ rt2800_register_write(rt2x00dev, RF_CONTROL0, 0x00000004); ++ rt2800_register_write(rt2x00dev, RF_BYPASS0, 0x00003306); ++ udelay(1); ++ ++ rt2800_register_write(rt2x00dev, TX_PIN_CFG, 0x0000000F); ++ ++ if (!test_bit(CAPABILITY_EXTERNAL_PA_TX0, &rt2x00dev->cap_flags)) { ++ rt2800_register_write(rt2x00dev, RF_CONTROL3, 0x00000000); ++ rt2800_register_write(rt2x00dev, RF_BYPASS3, 0x0000F1F1); ++ } ++ ++ rt2800_register_write(rt2x00dev, 0x13b8, 0x00000010); ++ ++ for (ch_idx = 0; ch_idx < 2; ch_idx++) ++ rt2800_rf_configstore(rt2x00dev, rf_store, ch_idx); ++ ++ rt2800_rfcsr_write_dccal(rt2x00dev, 3, 0x3B); ++ rt2800_rfcsr_write_dccal(rt2x00dev, 4, 0x3B); ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0x03); ++ rt2800_bbp_write(rt2x00dev, 159, 0x60); ++ rt2800_bbp_write(rt2x00dev, 158, 0xB0); ++ rt2800_bbp_write(rt2x00dev, 159, 0x80); ++ ++ for (ch_idx = 0; ch_idx < 2; ch_idx++) { ++ rt2800_bbp_write(rt2x00dev, 23, 0x00); ++ rt2800_bbp_write(rt2x00dev, 24, 0x00); ++ ++ if (ch_idx == 0) { ++ rt2800_bbp_write(rt2x00dev, 158, 0x01); ++ rt2800_bbp_write(rt2x00dev, 159, 0x00); ++ if (test_bit(CAPABILITY_EXTERNAL_PA_TX0, &rt2x00dev->cap_flags)) { ++ bbp = bbpr1 & (~0x18); ++ bbp = bbp | 0x00; ++ rt2800_bbp_write(rt2x00dev, 1, bbp); ++ } ++ rt2800_rf_aux_tx0_loopback(rt2x00dev); ++ rt2800_register_write(rt2x00dev, RF_CONTROL0, 0x00001004); ++ } else { ++ rt2800_bbp_write(rt2x00dev, 158, 0x01); ++ rt2800_bbp_write(rt2x00dev, 159, 0x01); ++ if (test_bit(CAPABILITY_EXTERNAL_PA_TX1, &rt2x00dev->cap_flags)) { ++ bbp = bbpr1 & (~0x18); ++ bbp = bbp | 0x08; ++ rt2800_bbp_write(rt2x00dev, 1, bbp); ++ } ++ rt2800_rf_aux_tx1_loopback(rt2x00dev); ++ rt2800_register_write(rt2x00dev, RF_CONTROL0, 0x00002004); ++ } ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0x05); ++ rt2800_bbp_write(rt2x00dev, 159, 0x04); ++ ++ bbp = (ch_idx == 0) ? 0x28 : 0x46; ++ rt2800_bbp_write(rt2x00dev, 158, bbp); ++ rt2800_bbp_write(rt2x00dev, 159, 0x00); ++ ++ if (test_bit(CAPABILITY_EXTERNAL_PA_TX0, &rt2x00dev->cap_flags)) { ++ rt2800_bbp_write(rt2x00dev, 23, 0x06); ++ rt2800_bbp_write(rt2x00dev, 24, 0x06); ++ count_step = 1; ++ } else { ++ rt2800_bbp_write(rt2x00dev, 23, 0x1F); ++ rt2800_bbp_write(rt2x00dev, 24, 0x1F); ++ count_step = 2; ++ } ++ ++ for (; vga_gain[ch_idx] < 19; vga_gain[ch_idx] = (vga_gain[ch_idx] + count_step)) { ++ rfvalue = rfvga_gain_table[vga_gain[ch_idx]]; ++ rt2800_rfcsr_write_dccal(rt2x00dev, 3, rfvalue); ++ rt2800_rfcsr_write_dccal(rt2x00dev, 4, rfvalue); ++ ++ bbp = (ch_idx == 0) ? 0x29 : 0x47; ++ rt2800_bbp_write(rt2x00dev, 158, bbp); ++ rt2800_bbp_write(rt2x00dev, 159, 0x00); ++ p0 = rt2800_do_fft_accumulation(rt2x00dev, 0x14, 0); ++ if (test_bit(CAPABILITY_EXTERNAL_PA_TX0, &rt2x00dev->cap_flags)) ++ p0_idx10 = rt2800_read_fft_accumulation(rt2x00dev, 0x0A); ++ ++ bbp = (ch_idx == 0) ? 0x29 : 0x47; ++ rt2800_bbp_write(rt2x00dev, 158, bbp); ++ rt2800_bbp_write(rt2x00dev, 159, 0x21); ++ p1 = rt2800_do_fft_accumulation(rt2x00dev, 0x14, 0); ++ if (test_bit(CAPABILITY_EXTERNAL_PA_TX1, &rt2x00dev->cap_flags)) ++ p1_idx10 = rt2800_read_fft_accumulation(rt2x00dev, 0x0A); ++ ++ rt2x00_dbg(rt2x00dev, "IQ AGC %d %d\n", p0, p1); ++ ++ if (test_bit(CAPABILITY_EXTERNAL_PA_TX0, &rt2x00dev->cap_flags)) { ++ rt2x00_dbg(rt2x00dev, "IQ AGC IDX 10 %d %d\n", p0_idx10, p1_idx10); ++ if ((p0_idx10 > 7000 * 7000) || (p1_idx10 > 7000 * 7000)) { ++ if (vga_gain[ch_idx] != 0) ++ vga_gain[ch_idx] = vga_gain[ch_idx] - 1; ++ break; ++ } ++ } ++ ++ if ((p0 > 2500 * 2500) || (p1 > 2500 * 2500)) ++ break; ++ } ++ ++ if (vga_gain[ch_idx] > 18) ++ vga_gain[ch_idx] = 18; ++ rt2x00_dbg(rt2x00dev, "Used VGA %d %x\n", vga_gain[ch_idx], ++ rfvga_gain_table[vga_gain[ch_idx]]); ++ ++ bbp = (ch_idx == 0) ? 0x29 : 0x47; ++ rt2800_bbp_write(rt2x00dev, 158, bbp); ++ rt2800_bbp_write(rt2x00dev, 159, 0x00); ++ ++ rt2800_iq_search(rt2x00dev, ch_idx, ger, per); ++ } ++ ++ rt2800_bbp_write(rt2x00dev, 23, 0x00); ++ rt2800_bbp_write(rt2x00dev, 24, 0x00); ++ rt2800_register_write(rt2x00dev, RF_CONTROL0, 0x04); ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0x28); ++ bbp = ger[CHAIN_0] & 0x0F; ++ rt2800_bbp_write(rt2x00dev, 159, bbp); ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0x29); ++ bbp = per[CHAIN_0] & 0x3F; ++ rt2800_bbp_write(rt2x00dev, 159, bbp); ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0x46); ++ bbp = ger[CHAIN_1] & 0x0F; ++ rt2800_bbp_write(rt2x00dev, 159, bbp); ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0x47); ++ bbp = per[CHAIN_1] & 0x3F; ++ rt2800_bbp_write(rt2x00dev, 159, bbp); ++ ++ if (test_bit(CAPABILITY_EXTERNAL_PA_TX0, &rt2x00dev->cap_flags)) { ++ rt2800_bbp_write(rt2x00dev, 1, bbpr1); ++ rt2800_bbp_write(rt2x00dev, 241, bbpr241); ++ rt2800_bbp_write(rt2x00dev, 242, bbpr242); ++ } ++ rt2800_bbp_write(rt2x00dev, 244, 0x00); ++ ++ rt2800_bbp_write(rt2x00dev, 158, 0x00); ++ rt2800_bbp_write(rt2x00dev, 159, 0x00); ++ rt2800_bbp_write(rt2x00dev, 158, 0xB0); ++ rt2800_bbp_write(rt2x00dev, 159, 0x00); ++ ++ rt2800_bbp_write(rt2x00dev, 30, bbpr30); ++ rt2800_rfcsr_write_bank(rt2x00dev, 0, 39, rfb0r39); ++ rt2800_rfcsr_write_bank(rt2x00dev, 0, 42, rfb0r42); ++ ++ if (test_bit(CAPABILITY_EXTERNAL_PA_TX0, &rt2x00dev->cap_flags)) ++ rt2800_bbp_write(rt2x00dev, 4, bbpr4); ++ ++ rt2800_bbp_write(rt2x00dev, 21, 0x01); ++ udelay(1); ++ rt2800_bbp_write(rt2x00dev, 21, 0x00); ++ ++ rt2800_rf_configrecover(rt2x00dev, rf_store); ++ ++ rt2800_register_write(rt2x00dev, TX_PIN_CFG, macorg1); ++ rt2800_register_write(rt2x00dev, RF_CONTROL0, 0x00); ++ rt2800_register_write(rt2x00dev, RF_BYPASS0, 0x00); ++ rt2800_register_write(rt2x00dev, RF_CONTROL0, macorg2); ++ udelay(1); ++ rt2800_register_write(rt2x00dev, RF_BYPASS0, macorg3); ++ rt2800_register_write(rt2x00dev, RF_CONTROL3, macorg4); ++ rt2800_register_write(rt2x00dev, RF_BYPASS3, macorg5); ++ rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, savemacsysctrl); ++ rt2800_register_write(rt2x00dev, 0x13b8, mac13b8); ++} ++ + static void rt2800_bbp_core_soft_reset(struct rt2x00_dev *rt2x00dev, + bool set_bw, bool is_ht40) + { +@@ -9653,6 +10554,7 @@ static void rt2800_init_rfcsr_6352(struc + rt2800_rxdcoc_calibration(rt2x00dev); + rt2800_bw_filter_calibration(rt2x00dev, true); + rt2800_bw_filter_calibration(rt2x00dev, false); ++ rt2800_loft_iq_calibration(rt2x00dev); + rt2800_rxiq_calibration(rt2x00dev); + } + +--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.h ++++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.h +@@ -17,6 +17,16 @@ + #define WCID_START 33 + #define WCID_END 222 + #define STA_IDS_SIZE (WCID_END - WCID_START + 2) ++#define CHAIN_0 0x0 ++#define CHAIN_1 0x1 ++#define RF_ALC_NUM 6 ++#define CHAIN_NUM 2 ++ ++struct rf_reg_pair { ++ u8 bank; ++ u8 reg; ++ u8 value; ++}; + + /* RT2800 driver data structure */ + struct rt2800_drv_data { |