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_pci_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_init_work(dev); 31 if (dev->dbdc_support) 32 mt7615_register_ext_phy(dev); 33 } 34 35 static int mt7615_init_hardware(struct mt7615_dev *dev) 36 { 37 u32 addr = mt7615_reg_map(dev, MT_EFUSE_BASE); 38 int ret, idx; 39 40 mt76_wr(dev, MT_INT_SOURCE_CSR, ~0); 41 42 INIT_WORK(&dev->mcu_work, mt7615_pci_init_work); 43 spin_lock_init(&dev->token_lock); 44 idr_init(&dev->token); 45 46 ret = mt7615_eeprom_init(dev, addr); 47 if (ret < 0) 48 return ret; 49 50 ret = mt7615_dma_init(dev); 51 if (ret) 52 return ret; 53 54 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 55 56 /* Beacon and mgmt frames should occupy wcid 0 */ 57 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7615_WTBL_STA - 1); 58 if (idx) 59 return -ENOSPC; 60 61 dev->mt76.global_wcid.idx = idx; 62 dev->mt76.global_wcid.hw_key_idx = -1; 63 rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid); 64 65 return 0; 66 } 67 68 static void 69 mt7615_led_set_config(struct led_classdev *led_cdev, 70 u8 delay_on, u8 delay_off) 71 { 72 struct mt7615_dev *dev; 73 struct mt76_dev *mt76; 74 u32 val, addr; 75 76 mt76 = container_of(led_cdev, struct mt76_dev, led_cdev); 77 dev = container_of(mt76, struct mt7615_dev, mt76); 78 79 if (test_bit(MT76_STATE_PM, &mt76->phy.state)) 80 return; 81 82 val = FIELD_PREP(MT_LED_STATUS_DURATION, 0xffff) | 83 FIELD_PREP(MT_LED_STATUS_OFF, delay_off) | 84 FIELD_PREP(MT_LED_STATUS_ON, delay_on); 85 86 addr = mt7615_reg_map(dev, MT_LED_STATUS_0(mt76->led_pin)); 87 mt76_wr(dev, addr, val); 88 addr = mt7615_reg_map(dev, MT_LED_STATUS_1(mt76->led_pin)); 89 mt76_wr(dev, addr, val); 90 91 val = MT_LED_CTRL_REPLAY(mt76->led_pin) | 92 MT_LED_CTRL_KICK(mt76->led_pin); 93 if (mt76->led_al) 94 val |= MT_LED_CTRL_POLARITY(mt76->led_pin); 95 addr = mt7615_reg_map(dev, MT_LED_CTRL); 96 mt76_wr(dev, addr, val); 97 } 98 99 static int 100 mt7615_led_set_blink(struct led_classdev *led_cdev, 101 unsigned long *delay_on, 102 unsigned long *delay_off) 103 { 104 u8 delta_on, delta_off; 105 106 delta_off = max_t(u8, *delay_off / 10, 1); 107 delta_on = max_t(u8, *delay_on / 10, 1); 108 109 mt7615_led_set_config(led_cdev, delta_on, delta_off); 110 111 return 0; 112 } 113 114 static void 115 mt7615_led_set_brightness(struct led_classdev *led_cdev, 116 enum led_brightness brightness) 117 { 118 if (!brightness) 119 mt7615_led_set_config(led_cdev, 0, 0xff); 120 else 121 mt7615_led_set_config(led_cdev, 0xff, 0); 122 } 123 124 int mt7615_register_device(struct mt7615_dev *dev) 125 { 126 int ret; 127 128 mt7615_init_device(dev); 129 130 /* init led callbacks */ 131 if (IS_ENABLED(CONFIG_MT76_LEDS)) { 132 dev->mt76.led_cdev.brightness_set = mt7615_led_set_brightness; 133 dev->mt76.led_cdev.blink_set = mt7615_led_set_blink; 134 } 135 136 ret = mt7622_wmac_init(dev); 137 if (ret) 138 return ret; 139 140 ret = mt7615_init_hardware(dev); 141 if (ret) 142 return ret; 143 144 ret = mt76_register_device(&dev->mt76, true, mt7615_rates, 145 ARRAY_SIZE(mt7615_rates)); 146 if (ret) 147 return ret; 148 149 ieee80211_queue_work(mt76_hw(dev), &dev->mcu_work); 150 mt7615_init_txpower(dev, &dev->mphy.sband_2g.sband); 151 mt7615_init_txpower(dev, &dev->mphy.sband_5g.sband); 152 153 return mt7615_init_debugfs(dev); 154 } 155 156 void mt7615_unregister_device(struct mt7615_dev *dev) 157 { 158 bool mcu_running; 159 160 mcu_running = mt7615_wait_for_mcu_init(dev); 161 162 mt7615_unregister_ext_phy(dev); 163 mt76_unregister_device(&dev->mt76); 164 if (mcu_running) 165 mt7615_mcu_exit(dev); 166 mt7615_dma_cleanup(dev); 167 168 mt7615_tx_token_put(dev); 169 170 tasklet_disable(&dev->irq_tasklet); 171 172 mt76_free_device(&dev->mt76); 173 } 174