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 20 if (mt7615_mcu_init(dev)) 21 return; 22 23 mt7615_mcu_set_eeprom(dev); 24 mt7615_mac_init(dev); 25 mt7615_phy_init(dev); 26 mt7615_mcu_del_wtbl_all(dev); 27 mt7615_check_offload_capability(dev); 28 } 29 30 static int mt7615_init_hardware(struct mt7615_dev *dev) 31 { 32 u32 addr = mt7615_reg_map(dev, MT_EFUSE_BASE); 33 int ret, idx; 34 35 mt76_wr(dev, MT_INT_SOURCE_CSR, ~0); 36 37 INIT_WORK(&dev->mcu_work, mt7615_init_work); 38 spin_lock_init(&dev->token_lock); 39 idr_init(&dev->token); 40 41 ret = mt7615_eeprom_init(dev, addr); 42 if (ret < 0) 43 return ret; 44 45 ret = mt7615_dma_init(dev); 46 if (ret) 47 return ret; 48 49 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 50 51 /* Beacon and mgmt frames should occupy wcid 0 */ 52 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7615_WTBL_STA - 1); 53 if (idx) 54 return -ENOSPC; 55 56 dev->mt76.global_wcid.idx = idx; 57 dev->mt76.global_wcid.hw_key_idx = -1; 58 rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid); 59 60 return 0; 61 } 62 63 static void 64 mt7615_led_set_config(struct led_classdev *led_cdev, 65 u8 delay_on, u8 delay_off) 66 { 67 struct mt7615_dev *dev; 68 struct mt76_dev *mt76; 69 u32 val, addr; 70 71 mt76 = container_of(led_cdev, struct mt76_dev, led_cdev); 72 dev = container_of(mt76, struct mt7615_dev, mt76); 73 val = FIELD_PREP(MT_LED_STATUS_DURATION, 0xffff) | 74 FIELD_PREP(MT_LED_STATUS_OFF, delay_off) | 75 FIELD_PREP(MT_LED_STATUS_ON, delay_on); 76 77 addr = mt7615_reg_map(dev, MT_LED_STATUS_0(mt76->led_pin)); 78 mt76_wr(dev, addr, val); 79 addr = mt7615_reg_map(dev, MT_LED_STATUS_1(mt76->led_pin)); 80 mt76_wr(dev, addr, val); 81 82 val = MT_LED_CTRL_REPLAY(mt76->led_pin) | 83 MT_LED_CTRL_KICK(mt76->led_pin); 84 if (mt76->led_al) 85 val |= MT_LED_CTRL_POLARITY(mt76->led_pin); 86 addr = mt7615_reg_map(dev, MT_LED_CTRL); 87 mt76_wr(dev, addr, val); 88 } 89 90 static int 91 mt7615_led_set_blink(struct led_classdev *led_cdev, 92 unsigned long *delay_on, 93 unsigned long *delay_off) 94 { 95 u8 delta_on, delta_off; 96 97 delta_off = max_t(u8, *delay_off / 10, 1); 98 delta_on = max_t(u8, *delay_on / 10, 1); 99 100 mt7615_led_set_config(led_cdev, delta_on, delta_off); 101 102 return 0; 103 } 104 105 static void 106 mt7615_led_set_brightness(struct led_classdev *led_cdev, 107 enum led_brightness brightness) 108 { 109 if (!brightness) 110 mt7615_led_set_config(led_cdev, 0, 0xff); 111 else 112 mt7615_led_set_config(led_cdev, 0xff, 0); 113 } 114 115 int mt7615_register_device(struct mt7615_dev *dev) 116 { 117 int ret; 118 119 mt7615_init_device(dev); 120 121 /* init led callbacks */ 122 if (IS_ENABLED(CONFIG_MT76_LEDS)) { 123 dev->mt76.led_cdev.brightness_set = mt7615_led_set_brightness; 124 dev->mt76.led_cdev.blink_set = mt7615_led_set_blink; 125 } 126 127 ret = mt7622_wmac_init(dev); 128 if (ret) 129 return ret; 130 131 ret = mt7615_init_hardware(dev); 132 if (ret) 133 return ret; 134 135 ret = mt76_register_device(&dev->mt76, true, mt7615_rates, 136 ARRAY_SIZE(mt7615_rates)); 137 if (ret) 138 return ret; 139 140 ieee80211_queue_work(mt76_hw(dev), &dev->mcu_work); 141 mt7615_init_txpower(dev, &dev->mphy.sband_2g.sband); 142 mt7615_init_txpower(dev, &dev->mphy.sband_5g.sband); 143 144 return mt7615_init_debugfs(dev); 145 } 146 147 void mt7615_unregister_device(struct mt7615_dev *dev) 148 { 149 struct mt76_txwi_cache *txwi; 150 bool mcu_running; 151 int id; 152 153 mcu_running = mt7615_wait_for_mcu_init(dev); 154 155 mt7615_unregister_ext_phy(dev); 156 mt76_unregister_device(&dev->mt76); 157 if (mcu_running) 158 mt7615_mcu_exit(dev); 159 mt7615_dma_cleanup(dev); 160 161 spin_lock_bh(&dev->token_lock); 162 idr_for_each_entry(&dev->token, txwi, id) { 163 mt7615_txp_skb_unmap(&dev->mt76, txwi); 164 if (txwi->skb) 165 dev_kfree_skb_any(txwi->skb); 166 mt76_put_txwi(&dev->mt76, txwi); 167 } 168 spin_unlock_bh(&dev->token_lock); 169 idr_destroy(&dev->token); 170 171 tasklet_disable(&dev->irq_tasklet); 172 173 mt76_free_device(&dev->mt76); 174 } 175