1 // SPDX-License-Identifier: ISC 2 /* Copyright (C) 2019 MediaTek Inc. 3 * 4 * Author: Roy Luo <royluo@google.com> 5 * Ryder Lee <ryder.lee@mediatek.com> 6 * Felix Fietkau <nbd@nbd.name> 7 * Lorenzo Bianconi <lorenzo@kernel.org> 8 */ 9 10 #include <linux/etherdevice.h> 11 #include "mt7615.h" 12 #include "mac.h" 13 #include "eeprom.h" 14 15 static void mt7615_init_work(struct work_struct *work) 16 { 17 struct mt7615_dev *dev = container_of(work, struct mt7615_dev, 18 mcu_work); 19 int i, ret; 20 21 ret = mt7615_mcu_init(dev); 22 for (i = 0; (ret == -EAGAIN) && (i < 10); i++) { 23 msleep(200); 24 ret = mt7615_mcu_init(dev); 25 } 26 27 if (ret) 28 return; 29 30 mt7615_mcu_set_eeprom(dev); 31 mt7615_mac_init(dev); 32 mt7615_phy_init(dev); 33 mt7615_mcu_del_wtbl_all(dev); 34 mt7615_check_offload_capability(dev); 35 36 if (dev->dbdc_support) 37 mt7615_register_ext_phy(dev); 38 } 39 40 static int mt7615_init_hardware(struct mt7615_dev *dev) 41 { 42 u32 addr = mt7615_reg_map(dev, MT_EFUSE_BASE); 43 int ret, idx; 44 45 mt76_wr(dev, MT_INT_SOURCE_CSR, ~0); 46 47 INIT_WORK(&dev->mcu_work, mt7615_init_work); 48 spin_lock_init(&dev->token_lock); 49 idr_init(&dev->token); 50 51 ret = mt7615_eeprom_init(dev, addr); 52 if (ret < 0) 53 return ret; 54 55 ret = mt7615_dma_init(dev); 56 if (ret) 57 return ret; 58 59 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 60 61 /* Beacon and mgmt frames should occupy wcid 0 */ 62 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7615_WTBL_STA - 1); 63 if (idx) 64 return -ENOSPC; 65 66 dev->mt76.global_wcid.idx = idx; 67 dev->mt76.global_wcid.hw_key_idx = -1; 68 rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid); 69 70 return 0; 71 } 72 73 static void 74 mt7615_led_set_config(struct led_classdev *led_cdev, 75 u8 delay_on, u8 delay_off) 76 { 77 struct mt7615_dev *dev; 78 struct mt76_dev *mt76; 79 u32 val, addr; 80 81 mt76 = container_of(led_cdev, struct mt76_dev, led_cdev); 82 dev = container_of(mt76, struct mt7615_dev, mt76); 83 84 if (test_bit(MT76_STATE_PM, &mt76->phy.state)) 85 return; 86 87 val = FIELD_PREP(MT_LED_STATUS_DURATION, 0xffff) | 88 FIELD_PREP(MT_LED_STATUS_OFF, delay_off) | 89 FIELD_PREP(MT_LED_STATUS_ON, delay_on); 90 91 addr = mt7615_reg_map(dev, MT_LED_STATUS_0(mt76->led_pin)); 92 mt76_wr(dev, addr, val); 93 addr = mt7615_reg_map(dev, MT_LED_STATUS_1(mt76->led_pin)); 94 mt76_wr(dev, addr, val); 95 96 val = MT_LED_CTRL_REPLAY(mt76->led_pin) | 97 MT_LED_CTRL_KICK(mt76->led_pin); 98 if (mt76->led_al) 99 val |= MT_LED_CTRL_POLARITY(mt76->led_pin); 100 addr = mt7615_reg_map(dev, MT_LED_CTRL); 101 mt76_wr(dev, addr, val); 102 } 103 104 static int 105 mt7615_led_set_blink(struct led_classdev *led_cdev, 106 unsigned long *delay_on, 107 unsigned long *delay_off) 108 { 109 u8 delta_on, delta_off; 110 111 delta_off = max_t(u8, *delay_off / 10, 1); 112 delta_on = max_t(u8, *delay_on / 10, 1); 113 114 mt7615_led_set_config(led_cdev, delta_on, delta_off); 115 116 return 0; 117 } 118 119 static void 120 mt7615_led_set_brightness(struct led_classdev *led_cdev, 121 enum led_brightness brightness) 122 { 123 if (!brightness) 124 mt7615_led_set_config(led_cdev, 0, 0xff); 125 else 126 mt7615_led_set_config(led_cdev, 0xff, 0); 127 } 128 129 int mt7615_register_device(struct mt7615_dev *dev) 130 { 131 int ret; 132 133 mt7615_init_device(dev); 134 135 /* init led callbacks */ 136 if (IS_ENABLED(CONFIG_MT76_LEDS)) { 137 dev->mt76.led_cdev.brightness_set = mt7615_led_set_brightness; 138 dev->mt76.led_cdev.blink_set = mt7615_led_set_blink; 139 } 140 141 ret = mt7622_wmac_init(dev); 142 if (ret) 143 return ret; 144 145 ret = mt7615_init_hardware(dev); 146 if (ret) 147 return ret; 148 149 ret = mt76_register_device(&dev->mt76, true, mt7615_rates, 150 ARRAY_SIZE(mt7615_rates)); 151 if (ret) 152 return ret; 153 154 ieee80211_queue_work(mt76_hw(dev), &dev->mcu_work); 155 mt7615_init_txpower(dev, &dev->mphy.sband_2g.sband); 156 mt7615_init_txpower(dev, &dev->mphy.sband_5g.sband); 157 158 return mt7615_init_debugfs(dev); 159 } 160 161 void mt7615_unregister_device(struct mt7615_dev *dev) 162 { 163 struct mt76_txwi_cache *txwi; 164 bool mcu_running; 165 int id; 166 167 mcu_running = mt7615_wait_for_mcu_init(dev); 168 169 mt7615_unregister_ext_phy(dev); 170 mt76_unregister_device(&dev->mt76); 171 if (mcu_running) 172 mt7615_mcu_exit(dev); 173 mt7615_dma_cleanup(dev); 174 175 spin_lock_bh(&dev->token_lock); 176 idr_for_each_entry(&dev->token, txwi, id) { 177 mt7615_txp_skb_unmap(&dev->mt76, txwi); 178 if (txwi->skb) 179 dev_kfree_skb_any(txwi->skb); 180 mt76_put_txwi(&dev->mt76, txwi); 181 } 182 spin_unlock_bh(&dev->token_lock); 183 idr_destroy(&dev->token); 184 185 tasklet_disable(&dev->irq_tasklet); 186 187 mt76_free_device(&dev->mt76); 188 } 189