From: <sean.wang@mediatek.com> To: <nbd@nbd.name>, <lorenzo.bianconi@redhat.com> Cc: <sean.wang@mediatek.com>, <Soul.Huang@mediatek.com>, <YN.Chen@mediatek.com>, <robin.chiu@mediatek.com>, <ch.yeh@mediatek.com>, <posh.sun@mediatek.com>, <Eric.Liang@mediatek.com>, <ryder.lee@mediatek.com>, <linux-wireless@vger.kernel.org>, <linux-mediatek@lists.infradead.org>, Lorenzo Bianconi <lorenzo@kernel.org> Subject: [PATCH -next v5 06/15] mt76: mt7921: add EEPROM support Date: Tue, 5 Jan 2021 02:00:10 +0800 [thread overview] Message-ID: <aaf16a3b4761965753536020a76cb563e1e49d9e.1609781247.git.objelf@gmail.com> (raw) In-Reply-To: <cover.1609781247.git.objelf@gmail.com> From: Sean Wang <sean.wang@mediatek.com> Add EEPROM support to MT7921 to determine the capability the card has such as indentificaiton, MAC address, the band and antenna number the card able to support. Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Co-developed-by: Soul Huang <Soul.Huang@mediatek.com> Signed-off-by: Soul Huang <Soul.Huang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> --- .../wireless/mediatek/mt76/mt7921/eeprom.c | 101 ++++++++++++++++++ .../wireless/mediatek/mt76/mt7921/eeprom.h | 27 +++++ 2 files changed, 128 insertions(+) create mode 100644 drivers/net/wireless/mediatek/mt76/mt7921/eeprom.c create mode 100644 drivers/net/wireless/mediatek/mt76/mt7921/eeprom.h diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/eeprom.c b/drivers/net/wireless/mediatek/mt76/mt7921/eeprom.c new file mode 100644 index 000000000000..05e32764e17a --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/mt7921/eeprom.c @@ -0,0 +1,101 @@ +// SPDX-License-Identifier: ISC +/* Copyright (C) 2020 MediaTek Inc. */ + +#include "mt7921.h" +#include "eeprom.h" + +static u32 mt7921_eeprom_read(struct mt7921_dev *dev, u32 offset) +{ + u8 *data = dev->mt76.eeprom.data; + + if (data[offset] == 0xff) + mt7921_mcu_get_eeprom(dev, offset); + + return data[offset]; +} + +static int mt7921_eeprom_load(struct mt7921_dev *dev) +{ + int ret; + + ret = mt76_eeprom_init(&dev->mt76, MT7921_EEPROM_SIZE); + if (ret < 0) + return ret; + + memset(dev->mt76.eeprom.data, -1, MT7921_EEPROM_SIZE); + + return 0; +} + +static int mt7921_check_eeprom(struct mt7921_dev *dev) +{ + u8 *eeprom = dev->mt76.eeprom.data; + u16 val; + + mt7921_eeprom_read(dev, MT_EE_CHIP_ID); + val = get_unaligned_le16(eeprom); + + switch (val) { + case 0x7961: + return 0; + default: + return -EINVAL; + } +} + +void mt7921_eeprom_parse_band_config(struct mt7921_phy *phy) +{ + struct mt7921_dev *dev = phy->dev; + u32 val; + + val = mt7921_eeprom_read(dev, MT_EE_WIFI_CONF); + val = FIELD_GET(MT_EE_WIFI_CONF_BAND_SEL, val); + + switch (val) { + case MT_EE_5GHZ: + phy->mt76->cap.has_5ghz = true; + break; + case MT_EE_2GHZ: + phy->mt76->cap.has_2ghz = true; + break; + default: + phy->mt76->cap.has_2ghz = true; + phy->mt76->cap.has_5ghz = true; + break; + } +} + +static void mt7921_eeprom_parse_hw_cap(struct mt7921_dev *dev) +{ + u8 tx_mask, *eeprom = dev->mt76.eeprom.data; + + mt7921_eeprom_parse_band_config(&dev->phy); + + /* read tx mask from eeprom (0: 1Tx, 1: 2Tx) */ + tx_mask = FIELD_GET(MT_EE_WIFI_CONF_TX_MASK, eeprom[MT_EE_WIFI_CONF]); + tx_mask = tx_mask + 1; + dev->chainmask = BIT(tx_mask) - 1; + dev->mphy.antenna_mask = dev->chainmask; + dev->mphy.chainmask = dev->mphy.antenna_mask; +} + +int mt7921_eeprom_init(struct mt7921_dev *dev) +{ + int ret; + + ret = mt7921_eeprom_load(dev); + if (ret < 0) + return ret; + + ret = mt7921_check_eeprom(dev); + if (ret) + return ret; + + mt7921_eeprom_parse_hw_cap(dev); + memcpy(dev->mphy.macaddr, dev->mt76.eeprom.data + MT_EE_MAC_ADDR, + ETH_ALEN); + + mt76_eeprom_override(&dev->mphy); + + return 0; +} diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/eeprom.h b/drivers/net/wireless/mediatek/mt76/mt7921/eeprom.h new file mode 100644 index 000000000000..54f30401343c --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/mt7921/eeprom.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: ISC */ +/* Copyright (C) 2020 MediaTek Inc. */ + +#ifndef __MT7921_EEPROM_H +#define __MT7921_EEPROM_H + +#include "mt7921.h" + +enum mt7921_eeprom_field { + MT_EE_CHIP_ID = 0x000, + MT_EE_VERSION = 0x002, + MT_EE_MAC_ADDR = 0x004, + MT_EE_WIFI_CONF = 0x07c, + __MT_EE_MAX = 0x3bf +}; + +#define MT_EE_WIFI_CONF_TX_MASK BIT(0) +#define MT_EE_WIFI_CONF_BAND_SEL GENMASK(3, 2) + +enum mt7921_eeprom_band { + MT_EE_NA, + MT_EE_5GHZ, + MT_EE_2GHZ, + MT_EE_DUAL_BAND, +}; + +#endif -- 2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: <sean.wang@mediatek.com> To: <nbd@nbd.name>, <lorenzo.bianconi@redhat.com> Cc: ryder.lee@mediatek.com, robin.chiu@mediatek.com, ch.yeh@mediatek.com, Eric.Liang@mediatek.com, sean.wang@mediatek.com, linux-wireless@vger.kernel.org, posh.sun@mediatek.com, YN.Chen@mediatek.com, linux-mediatek@lists.infradead.org, Soul.Huang@mediatek.com, Lorenzo Bianconi <lorenzo@kernel.org> Subject: [PATCH -next v5 06/15] mt76: mt7921: add EEPROM support Date: Tue, 5 Jan 2021 02:00:10 +0800 [thread overview] Message-ID: <aaf16a3b4761965753536020a76cb563e1e49d9e.1609781247.git.objelf@gmail.com> (raw) In-Reply-To: <cover.1609781247.git.objelf@gmail.com> From: Sean Wang <sean.wang@mediatek.com> Add EEPROM support to MT7921 to determine the capability the card has such as indentificaiton, MAC address, the band and antenna number the card able to support. Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Co-developed-by: Soul Huang <Soul.Huang@mediatek.com> Signed-off-by: Soul Huang <Soul.Huang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> --- .../wireless/mediatek/mt76/mt7921/eeprom.c | 101 ++++++++++++++++++ .../wireless/mediatek/mt76/mt7921/eeprom.h | 27 +++++ 2 files changed, 128 insertions(+) create mode 100644 drivers/net/wireless/mediatek/mt76/mt7921/eeprom.c create mode 100644 drivers/net/wireless/mediatek/mt76/mt7921/eeprom.h diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/eeprom.c b/drivers/net/wireless/mediatek/mt76/mt7921/eeprom.c new file mode 100644 index 000000000000..05e32764e17a --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/mt7921/eeprom.c @@ -0,0 +1,101 @@ +// SPDX-License-Identifier: ISC +/* Copyright (C) 2020 MediaTek Inc. */ + +#include "mt7921.h" +#include "eeprom.h" + +static u32 mt7921_eeprom_read(struct mt7921_dev *dev, u32 offset) +{ + u8 *data = dev->mt76.eeprom.data; + + if (data[offset] == 0xff) + mt7921_mcu_get_eeprom(dev, offset); + + return data[offset]; +} + +static int mt7921_eeprom_load(struct mt7921_dev *dev) +{ + int ret; + + ret = mt76_eeprom_init(&dev->mt76, MT7921_EEPROM_SIZE); + if (ret < 0) + return ret; + + memset(dev->mt76.eeprom.data, -1, MT7921_EEPROM_SIZE); + + return 0; +} + +static int mt7921_check_eeprom(struct mt7921_dev *dev) +{ + u8 *eeprom = dev->mt76.eeprom.data; + u16 val; + + mt7921_eeprom_read(dev, MT_EE_CHIP_ID); + val = get_unaligned_le16(eeprom); + + switch (val) { + case 0x7961: + return 0; + default: + return -EINVAL; + } +} + +void mt7921_eeprom_parse_band_config(struct mt7921_phy *phy) +{ + struct mt7921_dev *dev = phy->dev; + u32 val; + + val = mt7921_eeprom_read(dev, MT_EE_WIFI_CONF); + val = FIELD_GET(MT_EE_WIFI_CONF_BAND_SEL, val); + + switch (val) { + case MT_EE_5GHZ: + phy->mt76->cap.has_5ghz = true; + break; + case MT_EE_2GHZ: + phy->mt76->cap.has_2ghz = true; + break; + default: + phy->mt76->cap.has_2ghz = true; + phy->mt76->cap.has_5ghz = true; + break; + } +} + +static void mt7921_eeprom_parse_hw_cap(struct mt7921_dev *dev) +{ + u8 tx_mask, *eeprom = dev->mt76.eeprom.data; + + mt7921_eeprom_parse_band_config(&dev->phy); + + /* read tx mask from eeprom (0: 1Tx, 1: 2Tx) */ + tx_mask = FIELD_GET(MT_EE_WIFI_CONF_TX_MASK, eeprom[MT_EE_WIFI_CONF]); + tx_mask = tx_mask + 1; + dev->chainmask = BIT(tx_mask) - 1; + dev->mphy.antenna_mask = dev->chainmask; + dev->mphy.chainmask = dev->mphy.antenna_mask; +} + +int mt7921_eeprom_init(struct mt7921_dev *dev) +{ + int ret; + + ret = mt7921_eeprom_load(dev); + if (ret < 0) + return ret; + + ret = mt7921_check_eeprom(dev); + if (ret) + return ret; + + mt7921_eeprom_parse_hw_cap(dev); + memcpy(dev->mphy.macaddr, dev->mt76.eeprom.data + MT_EE_MAC_ADDR, + ETH_ALEN); + + mt76_eeprom_override(&dev->mphy); + + return 0; +} diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/eeprom.h b/drivers/net/wireless/mediatek/mt76/mt7921/eeprom.h new file mode 100644 index 000000000000..54f30401343c --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/mt7921/eeprom.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: ISC */ +/* Copyright (C) 2020 MediaTek Inc. */ + +#ifndef __MT7921_EEPROM_H +#define __MT7921_EEPROM_H + +#include "mt7921.h" + +enum mt7921_eeprom_field { + MT_EE_CHIP_ID = 0x000, + MT_EE_VERSION = 0x002, + MT_EE_MAC_ADDR = 0x004, + MT_EE_WIFI_CONF = 0x07c, + __MT_EE_MAX = 0x3bf +}; + +#define MT_EE_WIFI_CONF_TX_MASK BIT(0) +#define MT_EE_WIFI_CONF_BAND_SEL GENMASK(3, 2) + +enum mt7921_eeprom_band { + MT_EE_NA, + MT_EE_5GHZ, + MT_EE_2GHZ, + MT_EE_DUAL_BAND, +}; + +#endif -- 2.25.1 _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek
next prev parent reply other threads:[~2021-01-04 18:01 UTC|newest] Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-01-04 18:00 [PATCH -next v5 00/15] introduce mt7921e support sean.wang 2021-01-04 18:00 ` sean.wang 2021-01-04 18:00 ` [PATCH -next v5 01/15] mt76: move mac_work in mt76_core module sean.wang 2021-01-04 18:00 ` sean.wang 2021-01-04 18:00 ` [PATCH -next v5 02/15] mt76: move chainmask in mt76_phy sean.wang 2021-01-04 18:00 ` sean.wang 2021-01-04 18:00 ` [PATCH -next v5 03/15] mt76: mt7921: add MAC support sean.wang 2021-01-04 18:00 ` sean.wang 2021-01-04 18:00 ` [PATCH -next v5 04/15] mt76: mt7921: add MCU support sean.wang 2021-01-04 18:00 ` sean.wang 2021-01-04 18:00 ` [PATCH -next v5 05/15] mt76: mt7921: add DMA support sean.wang 2021-01-04 18:00 ` sean.wang 2021-01-04 18:00 ` sean.wang [this message] 2021-01-04 18:00 ` [PATCH -next v5 06/15] mt76: mt7921: add EEPROM support sean.wang 2021-01-04 18:00 ` [PATCH -next v5 07/15] mt76: mt7921: add ieee80211_ops sean.wang 2021-01-04 18:00 ` sean.wang 2021-01-04 18:00 ` [PATCH -next v5 08/15] mt76: mt7921: introduce mt7921e support sean.wang 2021-01-04 18:00 ` sean.wang 2021-01-04 18:00 ` [PATCH -next v5 09/15] mt76: mt7921: add debugfs support sean.wang 2021-01-04 18:00 ` sean.wang 2021-01-04 18:00 ` [PATCH -next v5 10/15] mt76: mt7921: add module support sean.wang 2021-01-04 18:00 ` sean.wang 2021-01-04 18:00 ` [PATCH -next v5 11/15] mt76: mt7921: introduce schedule scan support sean.wang 2021-01-04 18:00 ` sean.wang 2021-01-04 18:00 ` [PATCH -next v5 12/15] mt76: mt7921: introduce 802.11 PS support in sta mode sean.wang 2021-01-04 18:00 ` sean.wang 2021-01-04 18:00 ` [PATCH -next v5 13/15] mt76: mt7921: introduce support for hardware beacon filter sean.wang 2021-01-04 18:00 ` sean.wang 2021-01-04 18:00 ` [PATCH -next v5 14/15] mt76: mt7921: introduce beacon_loss mcu event sean.wang 2021-01-04 18:00 ` sean.wang 2021-01-04 18:00 ` [PATCH -next v5 15/15] mt76: mt7921: introduce PM support sean.wang 2021-01-04 18:00 ` sean.wang
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