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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-03 16:27:18 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-03 16:27:18 -0700 |
commit | cb8e59cc87201af93dfbb6c3dccc8fcad72a09c2 (patch) | |
tree | a334db9022f89654b777bbce8c4c6632e65b9031 /drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c | |
parent | Merge branch 'uaccess.comedi' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs (diff) | |
parent | selftests: net: ip_defrag: ignore EPERM (diff) | |
download | wireguard-linux-cb8e59cc87201af93dfbb6c3dccc8fcad72a09c2.tar.xz wireguard-linux-cb8e59cc87201af93dfbb6c3dccc8fcad72a09c2.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from David Miller:
1) Allow setting bluetooth L2CAP modes via socket option, from Luiz
Augusto von Dentz.
2) Add GSO partial support to igc, from Sasha Neftin.
3) Several cleanups and improvements to r8169 from Heiner Kallweit.
4) Add IF_OPER_TESTING link state and use it when ethtool triggers a
device self-test. From Andrew Lunn.
5) Start moving away from custom driver versions, use the globally
defined kernel version instead, from Leon Romanovsky.
6) Support GRO vis gro_cells in DSA layer, from Alexander Lobakin.
7) Allow hard IRQ deferral during NAPI, from Eric Dumazet.
8) Add sriov and vf support to hinic, from Luo bin.
9) Support Media Redundancy Protocol (MRP) in the bridging code, from
Horatiu Vultur.
10) Support netmap in the nft_nat code, from Pablo Neira Ayuso.
11) Allow UDPv6 encapsulation of ESP in the ipsec code, from Sabrina
Dubroca. Also add ipv6 support for espintcp.
12) Lots of ReST conversions of the networking documentation, from Mauro
Carvalho Chehab.
13) Support configuration of ethtool rxnfc flows in bcmgenet driver,
from Doug Berger.
14) Allow to dump cgroup id and filter by it in inet_diag code, from
Dmitry Yakunin.
15) Add infrastructure to export netlink attribute policies to
userspace, from Johannes Berg.
16) Several optimizations to sch_fq scheduler, from Eric Dumazet.
17) Fallback to the default qdisc if qdisc init fails because otherwise
a packet scheduler init failure will make a device inoperative. From
Jesper Dangaard Brouer.
18) Several RISCV bpf jit optimizations, from Luke Nelson.
19) Correct the return type of the ->ndo_start_xmit() method in several
drivers, it's netdev_tx_t but many drivers were using
'int'. From Yunjian Wang.
20) Add an ethtool interface for PHY master/slave config, from Oleksij
Rempel.
21) Add BPF iterators, from Yonghang Song.
22) Add cable test infrastructure, including ethool interfaces, from
Andrew Lunn. Marvell PHY driver is the first to support this
facility.
23) Remove zero-length arrays all over, from Gustavo A. R. Silva.
24) Calculate and maintain an explicit frame size in XDP, from Jesper
Dangaard Brouer.
25) Add CAP_BPF, from Alexei Starovoitov.
26) Support terse dumps in the packet scheduler, from Vlad Buslov.
27) Support XDP_TX bulking in dpaa2 driver, from Ioana Ciornei.
28) Add devm_register_netdev(), from Bartosz Golaszewski.
29) Minimize qdisc resets, from Cong Wang.
30) Get rid of kernel_getsockopt and kernel_setsockopt in order to
eliminate set_fs/get_fs calls. From Christoph Hellwig.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2517 commits)
selftests: net: ip_defrag: ignore EPERM
net_failover: fixed rollback in net_failover_open()
Revert "tipc: Fix potential tipc_aead refcnt leak in tipc_crypto_rcv"
Revert "tipc: Fix potential tipc_node refcnt leak in tipc_rcv"
vmxnet3: allow rx flow hash ops only when rss is enabled
hinic: add set_channels ethtool_ops support
selftests/bpf: Add a default $(CXX) value
tools/bpf: Don't use $(COMPILE.c)
bpf, selftests: Use bpf_probe_read_kernel
s390/bpf: Use bcr 0,%0 as tail call nop filler
s390/bpf: Maintain 8-byte stack alignment
selftests/bpf: Fix verifier test
selftests/bpf: Fix sample_cnt shared between two threads
bpf, selftests: Adapt cls_redirect to call csum_level helper
bpf: Add csum_level helper for fixing up csum levels
bpf: Fix up bpf_skb_adjust_room helper's skb csum setting
sfc: add missing annotation for efx_ef10_try_update_nic_stats_vf()
crypto/chtls: IPv6 support for inline TLS
Crypto/chcr: Fixes a coccinile check error
Crypto/chcr: Fixes compilations warnings
...
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c')
-rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c b/drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c new file mode 100644 index 000000000000..7deba7ebd68a --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c @@ -0,0 +1,243 @@ +// SPDX-License-Identifier: ISC +/* Copyright (C) 2020 MediaTek Inc. */ + +#include "mt7915.h" +#include "eeprom.h" + +static inline bool mt7915_efuse_valid(u8 val) +{ + return !(val == 0xff); +} + +u32 mt7915_eeprom_read(struct mt7915_dev *dev, u32 offset) +{ + u8 *data = dev->mt76.eeprom.data; + + if (!mt7915_efuse_valid(data[offset])) + mt7915_mcu_get_eeprom(dev, offset); + + return data[offset]; +} + +static int mt7915_eeprom_load(struct mt7915_dev *dev) +{ + int ret; + + ret = mt76_eeprom_init(&dev->mt76, MT7915_EEPROM_SIZE); + if (ret < 0) + return ret; + + memset(dev->mt76.eeprom.data, -1, MT7915_EEPROM_SIZE); + + return 0; +} + +static int mt7915_check_eeprom(struct mt7915_dev *dev) +{ + u16 val; + u8 *eeprom = dev->mt76.eeprom.data; + + mt7915_eeprom_read(dev, 0); + val = get_unaligned_le16(eeprom); + + switch (val) { + case 0x7915: + return 0; + default: + return -EINVAL; + } +} + +static void mt7915_eeprom_parse_hw_cap(struct mt7915_dev *dev) +{ + u8 *eeprom = dev->mt76.eeprom.data; + u8 tx_mask, max_nss = 4; + u32 val = mt7915_eeprom_read(dev, MT_EE_WIFI_CONF); + + val = FIELD_GET(MT_EE_WIFI_CONF_BAND_SEL, val); + switch (val) { + case MT_EE_5GHZ: + dev->mt76.cap.has_5ghz = true; + break; + case MT_EE_2GHZ: + dev->mt76.cap.has_2ghz = true; + break; + default: + dev->mt76.cap.has_2ghz = true; + dev->mt76.cap.has_5ghz = true; + break; + } + + /* read tx mask from eeprom */ + tx_mask = FIELD_GET(MT_EE_WIFI_CONF_TX_MASK, + eeprom[MT_EE_WIFI_CONF]); + if (!tx_mask || tx_mask > max_nss) + tx_mask = max_nss; + + dev->chainmask = BIT(tx_mask) - 1; + dev->mphy.antenna_mask = dev->chainmask; + dev->phy.chainmask = dev->chainmask; +} + +int mt7915_eeprom_init(struct mt7915_dev *dev) +{ + int ret; + + ret = mt7915_eeprom_load(dev); + if (ret < 0) + return ret; + + ret = mt7915_check_eeprom(dev); + if (ret) + return ret; + + mt7915_eeprom_parse_hw_cap(dev); + memcpy(dev->mt76.macaddr, dev->mt76.eeprom.data + MT_EE_MAC_ADDR, + ETH_ALEN); + + mt76_eeprom_override(&dev->mt76); + + return 0; +} + +int mt7915_eeprom_get_target_power(struct mt7915_dev *dev, + struct ieee80211_channel *chan, + u8 chain_idx) +{ + int index; + bool tssi_on; + + if (chain_idx > 3) + return -EINVAL; + + tssi_on = mt7915_tssi_enabled(dev, chan->band); + + if (chan->band == NL80211_BAND_2GHZ) { + index = MT_EE_TX0_POWER_2G + chain_idx * 3 + !tssi_on; + } else { + int group = tssi_on ? + mt7915_get_channel_group(chan->hw_value) : 8; + + index = MT_EE_TX0_POWER_5G + chain_idx * 12 + group; + } + + return mt7915_eeprom_read(dev, index); +} + +static const u8 sku_cck_delta_map[] = { + SKU_CCK_GROUP0, + SKU_CCK_GROUP0, + SKU_CCK_GROUP1, + SKU_CCK_GROUP1, +}; + +static const u8 sku_ofdm_delta_map[] = { + SKU_OFDM_GROUP0, + SKU_OFDM_GROUP0, + SKU_OFDM_GROUP1, + SKU_OFDM_GROUP1, + SKU_OFDM_GROUP2, + SKU_OFDM_GROUP2, + SKU_OFDM_GROUP3, + SKU_OFDM_GROUP4, +}; + +static const u8 sku_mcs_delta_map[] = { + SKU_MCS_GROUP0, + SKU_MCS_GROUP1, + SKU_MCS_GROUP1, + SKU_MCS_GROUP2, + SKU_MCS_GROUP2, + SKU_MCS_GROUP3, + SKU_MCS_GROUP4, + SKU_MCS_GROUP5, + SKU_MCS_GROUP6, + SKU_MCS_GROUP7, + SKU_MCS_GROUP8, + SKU_MCS_GROUP9, +}; + +#define SKU_GROUP(_mode, _len, _ofs_2g, _ofs_5g, _map) \ + [_mode] = { \ + .len = _len, \ + .offset = { \ + _ofs_2g, \ + _ofs_5g, \ + }, \ + .delta_map = _map \ +} + +const struct sku_group mt7915_sku_groups[] = { + SKU_GROUP(SKU_CCK, 4, 0x252, 0, sku_cck_delta_map), + SKU_GROUP(SKU_OFDM, 8, 0x254, 0x29d, sku_ofdm_delta_map), + + SKU_GROUP(SKU_HT_BW20, 8, 0x259, 0x2a2, sku_mcs_delta_map), + SKU_GROUP(SKU_HT_BW40, 9, 0x262, 0x2ab, sku_mcs_delta_map), + SKU_GROUP(SKU_VHT_BW20, 12, 0x259, 0x2a2, sku_mcs_delta_map), + SKU_GROUP(SKU_VHT_BW40, 12, 0x262, 0x2ab, sku_mcs_delta_map), + SKU_GROUP(SKU_VHT_BW80, 12, 0, 0x2b4, sku_mcs_delta_map), + SKU_GROUP(SKU_VHT_BW160, 12, 0, 0, sku_mcs_delta_map), + + SKU_GROUP(SKU_HE_RU26, 12, 0x27f, 0x2dd, sku_mcs_delta_map), + SKU_GROUP(SKU_HE_RU52, 12, 0x289, 0x2e7, sku_mcs_delta_map), + SKU_GROUP(SKU_HE_RU106, 12, 0x293, 0x2f1, sku_mcs_delta_map), + SKU_GROUP(SKU_HE_RU242, 12, 0x26b, 0x2bf, sku_mcs_delta_map), + SKU_GROUP(SKU_HE_RU484, 12, 0x275, 0x2c9, sku_mcs_delta_map), + SKU_GROUP(SKU_HE_RU996, 12, 0, 0x2d3, sku_mcs_delta_map), + SKU_GROUP(SKU_HE_RU2x996, 12, 0, 0, sku_mcs_delta_map), +}; + +static s8 +mt7915_get_sku_delta(struct mt7915_dev *dev, u32 addr) +{ + u32 val = mt7915_eeprom_read(dev, addr); + s8 delta = FIELD_GET(SKU_DELTA_VAL, val); + + if (!(val & SKU_DELTA_EN)) + return 0; + + return val & SKU_DELTA_ADD ? delta : -delta; +} + +static void +mt7915_eeprom_init_sku_band(struct mt7915_dev *dev, + struct ieee80211_supported_band *sband) +{ + int i, band = sband->band; + s8 *rate_power = dev->rate_power[band], max_delta = 0; + u8 idx = 0; + + for (i = 0; i < ARRAY_SIZE(mt7915_sku_groups); i++) { + const struct sku_group *sku = &mt7915_sku_groups[i]; + u32 offset = sku->offset[band]; + int j; + + if (!offset) { + idx += sku->len; + continue; + } + + rate_power[idx++] = mt7915_get_sku_delta(dev, offset); + if (rate_power[idx - 1] > max_delta) + max_delta = rate_power[idx - 1]; + + if (i == SKU_HT_BW20 || i == SKU_VHT_BW20) + offset += 1; + + for (j = 1; j < sku->len; j++) { + u32 addr = offset + sku->delta_map[j]; + + rate_power[idx++] = mt7915_get_sku_delta(dev, addr); + if (rate_power[idx - 1] > max_delta) + max_delta = rate_power[idx - 1]; + } + } + + rate_power[idx] = max_delta; +} + +void mt7915_eeprom_init_sku(struct mt7915_dev *dev) +{ + mt7915_eeprom_init_sku_band(dev, &dev->mphy.sband_2g.sband); + mt7915_eeprom_init_sku_band(dev, &dev->mphy.sband_5g.sband); +} |