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 } 32 33 static int mt7615_init_hardware(struct mt7615_dev *dev) 34 { 35 u32 addr = mt7615_reg_map(dev, MT_EFUSE_BASE); 36 int ret, idx; 37 38 mt76_wr(dev, MT_INT_SOURCE_CSR, ~0); 39 40 INIT_WORK(&dev->mcu_work, mt7615_pci_init_work); 41 ret = mt7615_eeprom_init(dev, addr); 42 if (ret < 0) 43 return ret; 44 45 if (is_mt7663(&dev->mt76)) { 46 /* Reset RGU */ 47 mt76_clear(dev, MT_MCU_CIRQ_IRQ_SEL(4), BIT(1)); 48 mt76_set(dev, MT_MCU_CIRQ_IRQ_SEL(4), BIT(1)); 49 } 50 51 ret = mt7615_dma_init(dev); 52 if (ret) 53 return ret; 54 55 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 56 57 /* Beacon and mgmt frames should occupy wcid 0 */ 58 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7615_WTBL_STA - 1); 59 if (idx) 60 return -ENOSPC; 61 62 dev->mt76.global_wcid.idx = idx; 63 dev->mt76.global_wcid.hw_key_idx = -1; 64 rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid); 65 66 return 0; 67 } 68 69 int mt7615_register_device(struct mt7615_dev *dev) 70 { 71 int ret; 72 73 mt7615_init_device(dev); 74 INIT_WORK(&dev->reset_work, mt7615_mac_reset_work); 75 76 /* init led callbacks */ 77 if (IS_ENABLED(CONFIG_MT76_LEDS)) { 78 dev->mphy.leds.cdev.brightness_set = mt7615_led_set_brightness; 79 dev->mphy.leds.cdev.blink_set = mt7615_led_set_blink; 80 } 81 82 ret = mt7622_wmac_init(dev); 83 if (ret) 84 return ret; 85 86 ret = mt7615_init_hardware(dev); 87 if (ret) 88 return ret; 89 90 ret = mt76_register_device(&dev->mt76, true, mt76_rates, 91 ARRAY_SIZE(mt76_rates)); 92 if (ret) 93 return ret; 94 95 ret = mt7615_thermal_init(dev); 96 if (ret) 97 return ret; 98 99 ieee80211_queue_work(mt76_hw(dev), &dev->mcu_work); 100 mt7615_init_txpower(dev, &dev->mphy.sband_2g.sband); 101 mt7615_init_txpower(dev, &dev->mphy.sband_5g.sband); 102 103 if (dev->dbdc_support) { 104 ret = mt7615_register_ext_phy(dev); 105 if (ret) 106 return ret; 107 } 108 109 return mt7615_init_debugfs(dev); 110 } 111 112 void mt7615_unregister_device(struct mt7615_dev *dev) 113 { 114 bool mcu_running; 115 116 mcu_running = mt7615_wait_for_mcu_init(dev); 117 118 mt7615_unregister_ext_phy(dev); 119 mt76_unregister_device(&dev->mt76); 120 if (mcu_running) 121 mt7615_mcu_exit(dev); 122 123 mt7615_tx_token_put(dev); 124 mt7615_dma_cleanup(dev); 125 tasklet_disable(&dev->irq_tasklet); 126 127 mt76_free_device(&dev->mt76); 128 } 129