Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Felix Fietkau | 1478 | 72.34% | 4 | 15.38% |
Ansuel Smith | 182 | 8.91% | 6 | 23.08% |
Shayne Chen | 113 | 5.53% | 2 | 7.69% |
Lorenzo Bianconi | 95 | 4.65% | 3 | 11.54% |
Daniel Golle | 58 | 2.84% | 2 | 7.69% |
Wen Yang | 50 | 2.45% | 1 | 3.85% |
Ryder Lee | 31 | 1.52% | 2 | 7.69% |
Hauke Mehrtens | 15 | 0.73% | 1 | 3.85% |
Ming Yen Hsieh | 10 | 0.49% | 1 | 3.85% |
Deren Wu | 6 | 0.29% | 1 | 3.85% |
Liang He | 2 | 0.10% | 1 | 3.85% |
Allen Ye | 2 | 0.10% | 1 | 3.85% |
Michael Walle | 1 | 0.05% | 1 | 3.85% |
Total | 2043 | 26 |
// SPDX-License-Identifier: ISC /* * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name> */ #include <linux/of.h> #include <linux/of_net.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> #include <linux/nvmem-consumer.h> #include <linux/etherdevice.h> #include "mt76.h" static int mt76_get_of_eeprom_data(struct mt76_dev *dev, void *eep, int len) { struct device_node *np = dev->dev->of_node; const void *data; int size; data = of_get_property(np, "mediatek,eeprom-data", &size); if (!data) return -ENOENT; if (size > len) return -EINVAL; memcpy(eep, data, size); return 0; } int mt76_get_of_data_from_mtd(struct mt76_dev *dev, void *eep, int offset, int len) { #ifdef CONFIG_MTD struct device_node *np = dev->dev->of_node; struct mtd_info *mtd; const __be32 *list; const char *part; phandle phandle; size_t retlen; int size; int ret; list = of_get_property(np, "mediatek,mtd-eeprom", &size); if (!list) return -ENOENT; phandle = be32_to_cpup(list++); if (!phandle) return -ENOENT; np = of_find_node_by_phandle(phandle); if (!np) return -EINVAL; part = of_get_property(np, "label", NULL); if (!part) part = np->name; mtd = get_mtd_device_nm(part); if (IS_ERR(mtd)) { ret = PTR_ERR(mtd); goto out_put_node; } if (size <= sizeof(*list)) { ret = -EINVAL; goto out_put_node; } offset += be32_to_cpup(list); ret = mtd_read(mtd, offset, len, &retlen, eep); put_mtd_device(mtd); if (mtd_is_bitflip(ret)) ret = 0; if (ret) { dev_err(dev->dev, "reading EEPROM from mtd %s failed: %i\n", part, ret); goto out_put_node; } if (retlen < len) { ret = -EINVAL; goto out_put_node; } if (of_property_read_bool(dev->dev->of_node, "big-endian")) { u8 *data = (u8 *)eep; int i; /* convert eeprom data in Little Endian */ for (i = 0; i < round_down(len, 2); i += 2) put_unaligned_le16(get_unaligned_be16(&data[i]), &data[i]); } #ifdef CONFIG_NL80211_TESTMODE dev->test_mtd.name = devm_kstrdup(dev->dev, part, GFP_KERNEL); dev->test_mtd.offset = offset; #endif out_put_node: of_node_put(np); return ret; #else return -ENOENT; #endif } EXPORT_SYMBOL_GPL(mt76_get_of_data_from_mtd); int mt76_get_of_data_from_nvmem(struct mt76_dev *dev, void *eep, const char *cell_name, int len) { struct device_node *np = dev->dev->of_node; struct nvmem_cell *cell; const void *data; size_t retlen; int ret = 0; cell = of_nvmem_cell_get(np, cell_name); if (IS_ERR(cell)) return PTR_ERR(cell); data = nvmem_cell_read(cell, &retlen); nvmem_cell_put(cell); if (IS_ERR(data)) return PTR_ERR(data); if (retlen < len) { ret = -EINVAL; goto exit; } memcpy(eep, data, len); exit: kfree(data); return ret; } EXPORT_SYMBOL_GPL(mt76_get_of_data_from_nvmem); static int mt76_get_of_eeprom(struct mt76_dev *dev, void *eep, int len) { struct device_node *np = dev->dev->of_node; int ret; if (!np) return -ENOENT; ret = mt76_get_of_eeprom_data(dev, eep, len); if (!ret) return 0; ret = mt76_get_of_data_from_mtd(dev, eep, 0, len); if (!ret) return 0; return mt76_get_of_data_from_nvmem(dev, eep, "eeprom", len); } void mt76_eeprom_override(struct mt76_phy *phy) { struct mt76_dev *dev = phy->dev; struct device_node *np = dev->dev->of_node; of_get_mac_address(np, phy->macaddr); if (!is_valid_ether_addr(phy->macaddr)) { eth_random_addr(phy->macaddr); dev_info(dev->dev, "Invalid MAC address, using random address %pM\n", phy->macaddr); } } EXPORT_SYMBOL_GPL(mt76_eeprom_override); static bool mt76_string_prop_find(struct property *prop, const char *str) { const char *cp = NULL; if (!prop || !str || !str[0]) return false; while ((cp = of_prop_next_string(prop, cp)) != NULL) if (!strcasecmp(cp, str)) return true; return false; } struct device_node * mt76_find_power_limits_node(struct mt76_dev *dev) { struct device_node *np = dev->dev->of_node; const char *const region_names[] = { [NL80211_DFS_UNSET] = "ww", [NL80211_DFS_ETSI] = "etsi", [NL80211_DFS_FCC] = "fcc", [NL80211_DFS_JP] = "jp", }; struct device_node *cur, *fallback = NULL; const char *region_name = NULL; if (dev->region < ARRAY_SIZE(region_names)) region_name = region_names[dev->region]; np = of_get_child_by_name(np, "power-limits"); if (!np) return NULL; for_each_child_of_node(np, cur) { struct property *country = of_find_property(cur, "country", NULL); struct property *regd = of_find_property(cur, "regdomain", NULL); if (!country && !regd) { fallback = cur; continue; } if (mt76_string_prop_find(country, dev->alpha2) || mt76_string_prop_find(regd, region_name)) { of_node_put(np); return cur; } } of_node_put(np); return fallback; } EXPORT_SYMBOL_GPL(mt76_find_power_limits_node); static const __be32 * mt76_get_of_array(struct device_node *np, char *name, size_t *len, int min) { struct property *prop = of_find_property(np, name, NULL); if (!prop || !prop->value || prop->length < min * 4) return NULL; *len = prop->length; return prop->value; } struct device_node * mt76_find_channel_node(struct device_node *np, struct ieee80211_channel *chan) { struct device_node *cur; const __be32 *val; size_t len; for_each_child_of_node(np, cur) { val = mt76_get_of_array(cur, "channels", &len, 2); if (!val) continue; while (len >= 2 * sizeof(*val)) { if (chan->hw_value >= be32_to_cpu(val[0]) && chan->hw_value <= be32_to_cpu(val[1])) return cur; val += 2; len -= 2 * sizeof(*val); } } return NULL; } EXPORT_SYMBOL_GPL(mt76_find_channel_node); static s8 mt76_get_txs_delta(struct device_node *np, u8 nss) { const __be32 *val; size_t len; val = mt76_get_of_array(np, "txs-delta", &len, nss); if (!val) return 0; return be32_to_cpu(val[nss - 1]); } static void mt76_apply_array_limit(s8 *pwr, size_t pwr_len, const __be32 *data, s8 target_power, s8 nss_delta, s8 *max_power) { int i; if (!data) return; for (i = 0; i < pwr_len; i++) { pwr[i] = min_t(s8, target_power, be32_to_cpu(data[i]) + nss_delta); *max_power = max(*max_power, pwr[i]); } } static void mt76_apply_multi_array_limit(s8 *pwr, size_t pwr_len, s8 pwr_num, const __be32 *data, size_t len, s8 target_power, s8 nss_delta, s8 *max_power) { int i, cur; if (!data) return; len /= 4; cur = be32_to_cpu(data[0]); for (i = 0; i < pwr_num; i++) { if (len < pwr_len + 1) break; mt76_apply_array_limit(pwr + pwr_len * i, pwr_len, data + 1, target_power, nss_delta, max_power); if (--cur > 0) continue; data += pwr_len + 1; len -= pwr_len + 1; if (!len) break; cur = be32_to_cpu(data[0]); } } s8 mt76_get_rate_power_limits(struct mt76_phy *phy, struct ieee80211_channel *chan, struct mt76_power_limits *dest, s8 target_power) { struct mt76_dev *dev = phy->dev; struct device_node *np; const __be32 *val; char name[16]; u32 mcs_rates = dev->drv->mcs_rates; u32 ru_rates = ARRAY_SIZE(dest->ru[0]); char band; size_t len; s8 max_power = 0; s8 txs_delta; if (!mcs_rates) mcs_rates = 10; memset(dest, target_power, sizeof(*dest)); if (!IS_ENABLED(CONFIG_OF)) return target_power; np = mt76_find_power_limits_node(dev); if (!np) return target_power; switch (chan->band) { case NL80211_BAND_2GHZ: band = '2'; break; case NL80211_BAND_5GHZ: band = '5'; break; case NL80211_BAND_6GHZ: band = '6'; break; default: return target_power; } snprintf(name, sizeof(name), "txpower-%cg", band); np = of_get_child_by_name(np, name); if (!np) return target_power; np = mt76_find_channel_node(np, chan); if (!np) return target_power; txs_delta = mt76_get_txs_delta(np, hweight16(phy->chainmask)); val = mt76_get_of_array(np, "rates-cck", &len, ARRAY_SIZE(dest->cck)); mt76_apply_array_limit(dest->cck, ARRAY_SIZE(dest->cck), val, target_power, txs_delta, &max_power); val = mt76_get_of_array(np, "rates-ofdm", &len, ARRAY_SIZE(dest->ofdm)); mt76_apply_array_limit(dest->ofdm, ARRAY_SIZE(dest->ofdm), val, target_power, txs_delta, &max_power); val = mt76_get_of_array(np, "rates-mcs", &len, mcs_rates + 1); mt76_apply_multi_array_limit(dest->mcs[0], ARRAY_SIZE(dest->mcs[0]), ARRAY_SIZE(dest->mcs), val, len, target_power, txs_delta, &max_power); val = mt76_get_of_array(np, "rates-ru", &len, ru_rates + 1); mt76_apply_multi_array_limit(dest->ru[0], ARRAY_SIZE(dest->ru[0]), ARRAY_SIZE(dest->ru), val, len, target_power, txs_delta, &max_power); return max_power; } EXPORT_SYMBOL_GPL(mt76_get_rate_power_limits); int mt76_eeprom_init(struct mt76_dev *dev, int len) { dev->eeprom.size = len; dev->eeprom.data = devm_kzalloc(dev->dev, len, GFP_KERNEL); if (!dev->eeprom.data) return -ENOMEM; return !mt76_get_of_eeprom(dev, dev->eeprom.data, len); } EXPORT_SYMBOL_GPL(mt76_eeprom_init);
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