1 // SPDX-License-Identifier: ISC 2 /* 3 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name> 4 */ 5 6 #include <linux/kernel.h> 7 #include <linux/module.h> 8 #include <linux/pci.h> 9 10 #include "mt76x0.h" 11 #include "mcu.h" 12 13 static int mt76x0e_start(struct ieee80211_hw *hw) 14 { 15 struct mt76x02_dev *dev = hw->priv; 16 17 mt76x02_mac_start(dev); 18 mt76x0_phy_calibrate(dev, true); 19 ieee80211_queue_delayed_work(dev->mt76.hw, &dev->mt76.mac_work, 20 MT_MAC_WORK_INTERVAL); 21 ieee80211_queue_delayed_work(dev->mt76.hw, &dev->cal_work, 22 MT_CALIBRATE_INTERVAL); 23 set_bit(MT76_STATE_RUNNING, &dev->mphy.state); 24 25 return 0; 26 } 27 28 static void mt76x0e_stop_hw(struct mt76x02_dev *dev) 29 { 30 cancel_delayed_work_sync(&dev->cal_work); 31 cancel_delayed_work_sync(&dev->mt76.mac_work); 32 33 if (!mt76_poll(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_TX_DMA_BUSY, 34 0, 1000)) 35 dev_warn(dev->mt76.dev, "TX DMA did not stop\n"); 36 mt76_clear(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_TX_DMA_EN); 37 38 mt76x0_mac_stop(dev); 39 40 if (!mt76_poll(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_RX_DMA_BUSY, 41 0, 1000)) 42 dev_warn(dev->mt76.dev, "TX DMA did not stop\n"); 43 mt76_clear(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_RX_DMA_EN); 44 } 45 46 static void mt76x0e_stop(struct ieee80211_hw *hw) 47 { 48 struct mt76x02_dev *dev = hw->priv; 49 50 clear_bit(MT76_STATE_RUNNING, &dev->mphy.state); 51 mt76x0e_stop_hw(dev); 52 } 53 54 static void 55 mt76x0e_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 56 u32 queues, bool drop) 57 { 58 } 59 60 static const struct ieee80211_ops mt76x0e_ops = { 61 .tx = mt76x02_tx, 62 .start = mt76x0e_start, 63 .stop = mt76x0e_stop, 64 .add_interface = mt76x02_add_interface, 65 .remove_interface = mt76x02_remove_interface, 66 .config = mt76x0_config, 67 .configure_filter = mt76x02_configure_filter, 68 .bss_info_changed = mt76x02_bss_info_changed, 69 .sta_state = mt76_sta_state, 70 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove, 71 .set_key = mt76x02_set_key, 72 .conf_tx = mt76x02_conf_tx, 73 .sw_scan_start = mt76_sw_scan, 74 .sw_scan_complete = mt76x02_sw_scan_complete, 75 .ampdu_action = mt76x02_ampdu_action, 76 .sta_rate_tbl_update = mt76x02_sta_rate_tbl_update, 77 .wake_tx_queue = mt76_wake_tx_queue, 78 .get_survey = mt76_get_survey, 79 .get_txpower = mt76_get_txpower, 80 .flush = mt76x0e_flush, 81 .set_tim = mt76_set_tim, 82 .release_buffered_frames = mt76_release_buffered_frames, 83 .set_coverage_class = mt76x02_set_coverage_class, 84 .set_rts_threshold = mt76x02_set_rts_threshold, 85 .get_antenna = mt76_get_antenna, 86 }; 87 88 static int mt76x0e_register_device(struct mt76x02_dev *dev) 89 { 90 int err; 91 92 mt76x0_chip_onoff(dev, true, false); 93 if (!mt76x02_wait_for_mac(&dev->mt76)) 94 return -ETIMEDOUT; 95 96 mt76x02_dma_disable(dev); 97 err = mt76x0e_mcu_init(dev); 98 if (err < 0) 99 return err; 100 101 err = mt76x02_dma_init(dev); 102 if (err < 0) 103 return err; 104 105 err = mt76x0_init_hardware(dev); 106 if (err < 0) 107 return err; 108 109 mt76x02e_init_beacon_config(dev); 110 111 if (mt76_chip(&dev->mt76) == 0x7610) { 112 u16 val; 113 114 mt76_clear(dev, MT_COEXCFG0, BIT(0)); 115 116 val = mt76x02_eeprom_get(dev, MT_EE_NIC_CONF_0); 117 if (!(val & MT_EE_NIC_CONF_0_PA_IO_CURRENT)) 118 mt76_set(dev, MT_XO_CTRL7, 0xc03); 119 } 120 121 mt76_clear(dev, 0x110, BIT(9)); 122 mt76_set(dev, MT_MAX_LEN_CFG, BIT(13)); 123 124 err = mt76x0_register_device(dev); 125 if (err < 0) 126 return err; 127 128 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 129 130 return 0; 131 } 132 133 static int 134 mt76x0e_probe(struct pci_dev *pdev, const struct pci_device_id *id) 135 { 136 static const struct mt76_driver_ops drv_ops = { 137 .txwi_size = sizeof(struct mt76x02_txwi), 138 .drv_flags = MT_DRV_TX_ALIGNED4_SKBS | 139 MT_DRV_SW_RX_AIRTIME, 140 .survey_flags = SURVEY_INFO_TIME_TX, 141 .update_survey = mt76x02_update_channel, 142 .tx_prepare_skb = mt76x02_tx_prepare_skb, 143 .tx_complete_skb = mt76x02_tx_complete_skb, 144 .rx_skb = mt76x02_queue_rx_skb, 145 .rx_poll_complete = mt76x02_rx_poll_complete, 146 .sta_ps = mt76x02_sta_ps, 147 .sta_add = mt76x02_sta_add, 148 .sta_remove = mt76x02_sta_remove, 149 }; 150 struct mt76x02_dev *dev; 151 struct mt76_dev *mdev; 152 int ret; 153 154 ret = pcim_enable_device(pdev); 155 if (ret) 156 return ret; 157 158 ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev)); 159 if (ret) 160 return ret; 161 162 pci_set_master(pdev); 163 164 ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 165 if (ret) 166 return ret; 167 168 mdev = mt76_alloc_device(&pdev->dev, sizeof(*dev), &mt76x0e_ops, 169 &drv_ops); 170 if (!mdev) 171 return -ENOMEM; 172 173 dev = container_of(mdev, struct mt76x02_dev, mt76); 174 mutex_init(&dev->phy_mutex); 175 176 mt76_mmio_init(mdev, pcim_iomap_table(pdev)[0]); 177 178 mdev->rev = mt76_rr(dev, MT_ASIC_VERSION); 179 dev_info(mdev->dev, "ASIC revision: %08x\n", mdev->rev); 180 181 ret = devm_request_irq(mdev->dev, pdev->irq, mt76x02_irq_handler, 182 IRQF_SHARED, KBUILD_MODNAME, dev); 183 if (ret) 184 goto error; 185 186 ret = mt76x0e_register_device(dev); 187 if (ret < 0) 188 goto error; 189 190 return 0; 191 192 error: 193 ieee80211_free_hw(mt76_hw(dev)); 194 return ret; 195 } 196 197 static void mt76x0e_cleanup(struct mt76x02_dev *dev) 198 { 199 clear_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 200 tasklet_disable(&dev->mt76.pre_tbtt_tasklet); 201 mt76x0_chip_onoff(dev, false, false); 202 mt76x0e_stop_hw(dev); 203 mt76x02_dma_cleanup(dev); 204 mt76x02_mcu_cleanup(dev); 205 } 206 207 static void 208 mt76x0e_remove(struct pci_dev *pdev) 209 { 210 struct mt76_dev *mdev = pci_get_drvdata(pdev); 211 struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); 212 213 mt76_unregister_device(mdev); 214 mt76x0e_cleanup(dev); 215 mt76_free_device(mdev); 216 } 217 218 static const struct pci_device_id mt76x0e_device_table[] = { 219 { PCI_DEVICE(0x14c3, 0x7630) }, 220 { PCI_DEVICE(0x14c3, 0x7650) }, 221 { }, 222 }; 223 224 MODULE_DEVICE_TABLE(pci, mt76x0e_device_table); 225 MODULE_FIRMWARE(MT7610E_FIRMWARE); 226 MODULE_FIRMWARE(MT7650E_FIRMWARE); 227 MODULE_LICENSE("Dual BSD/GPL"); 228 229 static struct pci_driver mt76x0e_driver = { 230 .name = KBUILD_MODNAME, 231 .id_table = mt76x0e_device_table, 232 .probe = mt76x0e_probe, 233 .remove = mt76x0e_remove, 234 }; 235 236 module_pci_driver(mt76x0e_driver); 237