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 #if defined(__FreeBSD__)
12 #include <linux/delay.h>
13 #endif
14 #include "mt7615.h"
15 #include "mac.h"
16 #include "eeprom.h"
17
mt7615_pci_init_work(struct work_struct * work)18 static void mt7615_pci_init_work(struct work_struct *work)
19 {
20 struct mt7615_dev *dev = container_of(work, struct mt7615_dev,
21 mcu_work);
22 int i, ret;
23
24 ret = mt7615_mcu_init(dev);
25 for (i = 0; (ret == -EAGAIN) && (i < 10); i++) {
26 msleep(200);
27 ret = mt7615_mcu_init(dev);
28 }
29
30 if (ret)
31 return;
32
33 mt7615_init_work(dev);
34 }
35
mt7615_init_hardware(struct mt7615_dev * dev)36 static int mt7615_init_hardware(struct mt7615_dev *dev)
37 {
38 u32 addr = mt7615_reg_map(dev, MT_EFUSE_BASE);
39 int ret, idx;
40
41 mt76_wr(dev, MT_INT_SOURCE_CSR, ~0);
42
43 INIT_WORK(&dev->mcu_work, mt7615_pci_init_work);
44 ret = mt7615_eeprom_init(dev, addr);
45 if (ret < 0)
46 return ret;
47
48 if (is_mt7663(&dev->mt76)) {
49 /* Reset RGU */
50 mt76_clear(dev, MT_MCU_CIRQ_IRQ_SEL(4), BIT(1));
51 mt76_set(dev, MT_MCU_CIRQ_IRQ_SEL(4), BIT(1));
52 }
53
54 ret = mt7615_dma_init(dev);
55 if (ret)
56 return ret;
57
58 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
59
60 /* Beacon and mgmt frames should occupy wcid 0 */
61 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7615_WTBL_STA - 1);
62 if (idx)
63 return -ENOSPC;
64
65 dev->mt76.global_wcid.idx = idx;
66 dev->mt76.global_wcid.hw_key_idx = -1;
67 rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid);
68
69 return 0;
70 }
71
mt7615_register_device(struct mt7615_dev * dev)72 int mt7615_register_device(struct mt7615_dev *dev)
73 {
74 int ret;
75
76 mt7615_init_device(dev);
77 INIT_WORK(&dev->reset_work, mt7615_mac_reset_work);
78
79 /* init led callbacks */
80 if (IS_ENABLED(CONFIG_MT76_LEDS)) {
81 dev->mphy.leds.cdev.brightness_set = mt7615_led_set_brightness;
82 dev->mphy.leds.cdev.blink_set = mt7615_led_set_blink;
83 }
84
85 ret = mt7622_wmac_init(dev);
86 if (ret)
87 return ret;
88
89 ret = mt7615_init_hardware(dev);
90 if (ret)
91 return ret;
92
93 ret = mt76_register_device(&dev->mt76, true, mt76_rates,
94 ARRAY_SIZE(mt76_rates));
95 if (ret)
96 return ret;
97
98 #if defined(__linux__)
99 ret = mt7615_thermal_init(dev);
100 if (ret)
101 return ret;
102 #endif
103
104 ieee80211_queue_work(mt76_hw(dev), &dev->mcu_work);
105 mt7615_init_txpower(dev, &dev->mphy.sband_2g.sband);
106 mt7615_init_txpower(dev, &dev->mphy.sband_5g.sband);
107
108 if (dev->dbdc_support) {
109 ret = mt7615_register_ext_phy(dev);
110 if (ret)
111 return ret;
112 }
113
114 return mt7615_init_debugfs(dev);
115 }
116
mt7615_unregister_device(struct mt7615_dev * dev)117 void mt7615_unregister_device(struct mt7615_dev *dev)
118 {
119 bool mcu_running;
120
121 mcu_running = mt7615_wait_for_mcu_init(dev);
122
123 mt7615_unregister_ext_phy(dev);
124 mt76_unregister_device(&dev->mt76);
125 if (mcu_running)
126 mt7615_mcu_exit(dev);
127
128 mt7615_tx_token_put(dev);
129 mt7615_dma_cleanup(dev);
130 tasklet_disable(&dev->mt76.irq_tasklet);
131
132 mt76_free_device(&dev->mt76);
133 }
134