[][MAC80211][misc][preliminary version of Filogic 680 on Filogic 880]
[Description]
Add preliminary version of Filogic 680 on Filogic 880.
Based on mt76 revision: 269df4b01f27 ("wifi: mt76: fix rx checksum offload on mt7615/mt7915/mt7921")
This series adds mt7996, a new mac80211 driver for MediaTek Wi-Fi 7
(802.11be) devices, which currently supports AP, station, mesh, and
monitor modes.
mt7996 first supports Filogic 680, which is a Wi-Fi 7 chipset supporting
concurrent tri-band operation at 6 GHz, 5 GHz, and 2.4 GHz with 4x4
antennas on each band. There are several variants that will be added in
upcoming patches. For more details, please refer to [1].
mt7996 supports only Wi-Fi 6E at the moment, whereas Wi-Fi 7 and its
specific features are work in progress. They will be introduced in
further patches.
[1] https://corp.mediatek.com/news-events/press-releases/mediatek-announces-worlds-first-complete-wi-fi-7-platforms-for-access-points-and-clients
[Release-log]
N/A
Change-Id: I7d3dea2626556751c9b0462e587743fad5287be0
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/6709775
diff --git a/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mt76/src/mt7915/eeprom.c b/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mt76/src/mt7915/eeprom.c
new file mode 100644
index 0000000..e2482c6
--- /dev/null
+++ b/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mt76/src/mt7915/eeprom.c
@@ -0,0 +1,337 @@
+// SPDX-License-Identifier: ISC
+/* Copyright (C) 2020 MediaTek Inc. */
+
+#include <linux/firmware.h>
+#include "mt7915.h"
+#include "eeprom.h"
+
+static int mt7915_eeprom_load_precal(struct mt7915_dev *dev)
+{
+ struct mt76_dev *mdev = &dev->mt76;
+ u8 *eeprom = mdev->eeprom.data;
+ u32 val = eeprom[MT_EE_DO_PRE_CAL];
+ u32 offs;
+
+ if (!dev->flash_mode)
+ return 0;
+
+ if (val != (MT_EE_WIFI_CAL_DPD | MT_EE_WIFI_CAL_GROUP))
+ return 0;
+
+ val = MT_EE_CAL_GROUP_SIZE + MT_EE_CAL_DPD_SIZE;
+ dev->cal = devm_kzalloc(mdev->dev, val, GFP_KERNEL);
+ if (!dev->cal)
+ return -ENOMEM;
+
+ offs = is_mt7915(&dev->mt76) ? MT_EE_PRECAL : MT_EE_PRECAL_V2;
+
+ return mt76_get_of_eeprom(mdev, dev->cal, offs, val);
+}
+
+static int mt7915_check_eeprom(struct mt7915_dev *dev)
+{
+ u8 *eeprom = dev->mt76.eeprom.data;
+ u16 val = get_unaligned_le16(eeprom);
+
+ switch (val) {
+ case 0x7915:
+ case 0x7916:
+ case 0x7986:
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+
+static char *mt7915_eeprom_name(struct mt7915_dev *dev)
+{
+ switch (mt76_chip(&dev->mt76)) {
+ case 0x7915:
+ return dev->dbdc_support ?
+ MT7915_EEPROM_DEFAULT_DBDC : MT7915_EEPROM_DEFAULT;
+ case 0x7986:
+ switch (mt7915_check_adie(dev, true)) {
+ case MT7976_ONE_ADIE_DBDC:
+ return MT7986_EEPROM_MT7976_DEFAULT_DBDC;
+ case MT7975_ONE_ADIE:
+ return MT7986_EEPROM_MT7975_DEFAULT;
+ case MT7976_ONE_ADIE:
+ return MT7986_EEPROM_MT7976_DEFAULT;
+ case MT7975_DUAL_ADIE:
+ return MT7986_EEPROM_MT7975_DUAL_DEFAULT;
+ case MT7976_DUAL_ADIE:
+ return MT7986_EEPROM_MT7976_DUAL_DEFAULT;
+ default:
+ break;
+ }
+ return NULL;
+ default:
+ return MT7916_EEPROM_DEFAULT;
+ }
+}
+
+static int
+mt7915_eeprom_load_default(struct mt7915_dev *dev)
+{
+ u8 *eeprom = dev->mt76.eeprom.data;
+ const struct firmware *fw = NULL;
+ int ret;
+
+ ret = request_firmware(&fw, mt7915_eeprom_name(dev), dev->mt76.dev);
+ if (ret)
+ return ret;
+
+ if (!fw || !fw->data) {
+ dev_err(dev->mt76.dev, "Invalid default bin\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ memcpy(eeprom, fw->data, mt7915_eeprom_size(dev));
+ dev->flash_mode = true;
+
+out:
+ release_firmware(fw);
+
+ return ret;
+}
+
+static int mt7915_eeprom_load(struct mt7915_dev *dev)
+{
+ int ret;
+ u16 eeprom_size = mt7915_eeprom_size(dev);
+
+ ret = mt76_eeprom_init(&dev->mt76, eeprom_size);
+ if (ret < 0)
+ return ret;
+
+ if (ret) {
+ dev->flash_mode = true;
+ } else {
+ u8 free_block_num;
+ u32 block_num, i;
+
+ mt7915_mcu_get_eeprom_free_block(dev, &free_block_num);
+ /* efuse info not enough */
+ if (free_block_num >= 29)
+ return -EINVAL;
+
+ /* read eeprom data from efuse */
+ block_num = DIV_ROUND_UP(eeprom_size,
+ MT7915_EEPROM_BLOCK_SIZE);
+ for (i = 0; i < block_num; i++)
+ mt7915_mcu_get_eeprom(dev,
+ i * MT7915_EEPROM_BLOCK_SIZE);
+ }
+
+ return mt7915_check_eeprom(dev);
+}
+
+static void mt7915_eeprom_parse_band_config(struct mt7915_phy *phy)
+{
+ struct mt7915_dev *dev = phy->dev;
+ u8 *eeprom = dev->mt76.eeprom.data;
+ u32 val;
+
+ val = eeprom[MT_EE_WIFI_CONF + phy->band_idx];
+ val = FIELD_GET(MT_EE_WIFI_CONF0_BAND_SEL, val);
+
+ if (!is_mt7915(&dev->mt76)) {
+ switch (val) {
+ case MT_EE_V2_BAND_SEL_5GHZ:
+ phy->mt76->cap.has_5ghz = true;
+ return;
+ case MT_EE_V2_BAND_SEL_6GHZ:
+ phy->mt76->cap.has_6ghz = true;
+ return;
+ case MT_EE_V2_BAND_SEL_5GHZ_6GHZ:
+ phy->mt76->cap.has_5ghz = true;
+ phy->mt76->cap.has_6ghz = true;
+ return;
+ default:
+ phy->mt76->cap.has_2ghz = true;
+ return;
+ }
+ } else if (val == MT_EE_BAND_SEL_DEFAULT && dev->dbdc_support) {
+ val = phy->band_idx ? MT_EE_BAND_SEL_5GHZ : MT_EE_BAND_SEL_2GHZ;
+ }
+
+ switch (val) {
+ case MT_EE_BAND_SEL_5GHZ:
+ phy->mt76->cap.has_5ghz = true;
+ break;
+ case MT_EE_BAND_SEL_2GHZ:
+ phy->mt76->cap.has_2ghz = true;
+ break;
+ default:
+ phy->mt76->cap.has_2ghz = true;
+ phy->mt76->cap.has_5ghz = true;
+ break;
+ }
+}
+
+void mt7915_eeprom_parse_hw_cap(struct mt7915_dev *dev,
+ struct mt7915_phy *phy)
+{
+ u8 path, nss, nss_max = 4, *eeprom = dev->mt76.eeprom.data;
+ struct mt76_phy *mphy = phy->mt76;
+
+ mt7915_eeprom_parse_band_config(phy);
+
+ /* read tx/rx path from eeprom */
+ if (is_mt7915(&dev->mt76)) {
+ path = FIELD_GET(MT_EE_WIFI_CONF0_TX_PATH,
+ eeprom[MT_EE_WIFI_CONF]);
+ } else {
+ path = FIELD_GET(MT_EE_WIFI_CONF0_TX_PATH,
+ eeprom[MT_EE_WIFI_CONF + phy->band_idx]);
+ }
+
+ if (!path || path > 4)
+ path = 4;
+
+ /* read tx/rx stream */
+ nss = path;
+ if (dev->dbdc_support) {
+ if (is_mt7915(&dev->mt76)) {
+ nss = FIELD_GET(MT_EE_WIFI_CONF3_TX_PATH_B0,
+ eeprom[MT_EE_WIFI_CONF + 3]);
+ if (phy->band_idx)
+ nss = FIELD_GET(MT_EE_WIFI_CONF3_TX_PATH_B1,
+ eeprom[MT_EE_WIFI_CONF + 3]);
+ } else {
+ nss = FIELD_GET(MT_EE_WIFI_CONF_STREAM_NUM,
+ eeprom[MT_EE_WIFI_CONF + 2 + phy->band_idx]);
+ }
+
+ if (!is_mt7986(&dev->mt76))
+ nss_max = 2;
+ }
+
+ nss = min_t(u8, min_t(u8, nss_max, nss), path);
+
+ mphy->chainmask = BIT(path) - 1;
+ if (phy->band_idx)
+ mphy->chainmask <<= dev->chainshift;
+ mphy->antenna_mask = BIT(nss) - 1;
+ dev->chainmask |= mphy->chainmask;
+ dev->chainshift = hweight8(dev->mphy.chainmask);
+}
+
+int mt7915_eeprom_init(struct mt7915_dev *dev)
+{
+ int ret;
+
+ ret = mt7915_eeprom_load(dev);
+ if (ret < 0) {
+ if (ret != -EINVAL)
+ return ret;
+
+ dev_warn(dev->mt76.dev, "eeprom load fail, use default bin\n");
+ ret = mt7915_eeprom_load_default(dev);
+ if (ret)
+ return ret;
+ }
+
+ ret = mt7915_eeprom_load_precal(dev);
+ if (ret)
+ return ret;
+
+ mt7915_eeprom_parse_hw_cap(dev, &dev->phy);
+ memcpy(dev->mphy.macaddr, dev->mt76.eeprom.data + MT_EE_MAC_ADDR,
+ ETH_ALEN);
+
+ mt76_eeprom_override(&dev->mphy);
+
+ return 0;
+}
+
+int mt7915_eeprom_get_target_power(struct mt7915_dev *dev,
+ struct ieee80211_channel *chan,
+ u8 chain_idx)
+{
+ u8 *eeprom = dev->mt76.eeprom.data;
+ int index, target_power;
+ bool tssi_on, is_7976;
+
+ if (chain_idx > 3)
+ return -EINVAL;
+
+ tssi_on = mt7915_tssi_enabled(dev, chan->band);
+ is_7976 = mt7915_check_adie(dev, false) || is_mt7916(&dev->mt76);
+
+ if (chan->band == NL80211_BAND_2GHZ) {
+ if (is_7976) {
+ index = MT_EE_TX0_POWER_2G_V2 + chain_idx;
+ target_power = eeprom[index];
+ } else {
+ index = MT_EE_TX0_POWER_2G + chain_idx * 3;
+ target_power = eeprom[index];
+
+ if (!tssi_on)
+ target_power += eeprom[index + 1];
+ }
+ } else if (chan->band == NL80211_BAND_5GHZ) {
+ int group = mt7915_get_channel_group_5g(chan->hw_value, is_7976);
+
+ if (is_7976) {
+ index = MT_EE_TX0_POWER_5G_V2 + chain_idx * 5;
+ target_power = eeprom[index + group];
+ } else {
+ index = MT_EE_TX0_POWER_5G + chain_idx * 12;
+ target_power = eeprom[index + group];
+
+ if (!tssi_on)
+ target_power += eeprom[index + 8];
+ }
+ } else {
+ int group = mt7915_get_channel_group_6g(chan->hw_value);
+
+ index = MT_EE_TX0_POWER_6G_V2 + chain_idx * 8;
+ target_power = is_7976 ? eeprom[index + group] : 0;
+ }
+
+ return target_power;
+}
+
+s8 mt7915_eeprom_get_power_delta(struct mt7915_dev *dev, int band)
+{
+ u8 *eeprom = dev->mt76.eeprom.data;
+ u32 val, offs;
+ s8 delta;
+ bool is_7976 = mt7915_check_adie(dev, false) || is_mt7916(&dev->mt76);
+
+ if (band == NL80211_BAND_2GHZ)
+ offs = is_7976 ? MT_EE_RATE_DELTA_2G_V2 : MT_EE_RATE_DELTA_2G;
+ else if (band == NL80211_BAND_5GHZ)
+ offs = is_7976 ? MT_EE_RATE_DELTA_5G_V2 : MT_EE_RATE_DELTA_5G;
+ else
+ offs = is_7976 ? MT_EE_RATE_DELTA_6G_V2 : 0;
+
+ val = eeprom[offs];
+
+ if (!offs || !(val & MT_EE_RATE_DELTA_EN))
+ return 0;
+
+ delta = FIELD_GET(MT_EE_RATE_DELTA_MASK, val);
+
+ return val & MT_EE_RATE_DELTA_SIGN ? delta : -delta;
+}
+
+const u8 mt7915_sku_group_len[] = {
+ [SKU_CCK] = 4,
+ [SKU_OFDM] = 8,
+ [SKU_HT_BW20] = 8,
+ [SKU_HT_BW40] = 9,
+ [SKU_VHT_BW20] = 12,
+ [SKU_VHT_BW40] = 12,
+ [SKU_VHT_BW80] = 12,
+ [SKU_VHT_BW160] = 12,
+ [SKU_HE_RU26] = 12,
+ [SKU_HE_RU52] = 12,
+ [SKU_HE_RU106] = 12,
+ [SKU_HE_RU242] = 12,
+ [SKU_HE_RU484] = 12,
+ [SKU_HE_RU996] = 12,
+ [SKU_HE_RU2x996] = 12
+};