developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: ISC |
| 2 | /* Copyright (C) 2019 MediaTek Inc. |
| 3 | * |
| 4 | * Author: Felix Fietkau <nbd@nbd.name> |
| 5 | * Lorenzo Bianconi <lorenzo@kernel.org> |
| 6 | * Sean Wang <sean.wang@mediatek.com> |
| 7 | */ |
| 8 | |
| 9 | #include <linux/kernel.h> |
| 10 | #include <linux/module.h> |
| 11 | #include <linux/usb.h> |
| 12 | |
| 13 | #include "mt7615.h" |
| 14 | #include "mac.h" |
| 15 | #include "mcu.h" |
| 16 | #include "regs.h" |
| 17 | |
| 18 | static const struct usb_device_id mt7615_device_table[] = { |
| 19 | { USB_DEVICE_AND_INTERFACE_INFO(0x0e8d, 0x7663, 0xff, 0xff, 0xff) }, |
| 20 | { USB_DEVICE_AND_INTERFACE_INFO(0x043e, 0x310c, 0xff, 0xff, 0xff) }, |
| 21 | { }, |
| 22 | }; |
| 23 | |
| 24 | static u32 mt7663u_rr(struct mt76_dev *dev, u32 addr) |
| 25 | { |
| 26 | u32 ret; |
| 27 | |
| 28 | mutex_lock(&dev->usb.usb_ctrl_mtx); |
| 29 | ret = ___mt76u_rr(dev, MT_VEND_READ_EXT, |
| 30 | USB_DIR_IN | USB_TYPE_VENDOR, addr); |
| 31 | mutex_unlock(&dev->usb.usb_ctrl_mtx); |
| 32 | |
| 33 | return ret; |
| 34 | } |
| 35 | |
| 36 | static void mt7663u_wr(struct mt76_dev *dev, u32 addr, u32 val) |
| 37 | { |
| 38 | mutex_lock(&dev->usb.usb_ctrl_mtx); |
| 39 | ___mt76u_wr(dev, MT_VEND_WRITE_EXT, |
| 40 | USB_DIR_OUT | USB_TYPE_VENDOR, addr, val); |
| 41 | mutex_unlock(&dev->usb.usb_ctrl_mtx); |
| 42 | } |
| 43 | |
| 44 | static u32 mt7663u_rmw(struct mt76_dev *dev, u32 addr, |
| 45 | u32 mask, u32 val) |
| 46 | { |
| 47 | mutex_lock(&dev->usb.usb_ctrl_mtx); |
| 48 | val |= ___mt76u_rr(dev, MT_VEND_READ_EXT, |
| 49 | USB_DIR_IN | USB_TYPE_VENDOR, addr) & ~mask; |
| 50 | ___mt76u_wr(dev, MT_VEND_WRITE_EXT, |
| 51 | USB_DIR_OUT | USB_TYPE_VENDOR, addr, val); |
| 52 | mutex_unlock(&dev->usb.usb_ctrl_mtx); |
| 53 | |
| 54 | return val; |
| 55 | } |
| 56 | |
| 57 | static void mt7663u_copy(struct mt76_dev *dev, u32 offset, |
| 58 | const void *data, int len) |
| 59 | { |
| 60 | struct mt76_usb *usb = &dev->usb; |
| 61 | int ret, i = 0, batch_len; |
| 62 | const u8 *val = data; |
| 63 | |
| 64 | len = round_up(len, 4); |
| 65 | |
| 66 | mutex_lock(&usb->usb_ctrl_mtx); |
| 67 | while (i < len) { |
| 68 | batch_len = min_t(int, usb->data_len, len - i); |
| 69 | memcpy(usb->data, val + i, batch_len); |
| 70 | ret = __mt76u_vendor_request(dev, MT_VEND_WRITE_EXT, |
| 71 | USB_DIR_OUT | USB_TYPE_VENDOR, |
| 72 | (offset + i) >> 16, offset + i, |
| 73 | usb->data, batch_len); |
| 74 | if (ret < 0) |
| 75 | break; |
| 76 | |
| 77 | i += batch_len; |
| 78 | } |
| 79 | mutex_unlock(&usb->usb_ctrl_mtx); |
| 80 | } |
| 81 | |
| 82 | static void mt7663u_stop(struct ieee80211_hw *hw) |
| 83 | { |
| 84 | struct mt7615_phy *phy = mt7615_hw_phy(hw); |
| 85 | struct mt7615_dev *dev = hw->priv; |
| 86 | |
| 87 | clear_bit(MT76_STATE_RUNNING, &dev->mphy.state); |
| 88 | del_timer_sync(&phy->roc_timer); |
| 89 | cancel_work_sync(&phy->roc_work); |
| 90 | cancel_delayed_work_sync(&phy->scan_work); |
| 91 | cancel_delayed_work_sync(&phy->mt76->mac_work); |
| 92 | mt76u_stop_tx(&dev->mt76); |
| 93 | } |
| 94 | |
| 95 | static void mt7663u_cleanup(struct mt7615_dev *dev) |
| 96 | { |
| 97 | clear_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); |
| 98 | mt76u_queues_deinit(&dev->mt76); |
| 99 | } |
| 100 | |
| 101 | static void mt7663u_init_work(struct work_struct *work) |
| 102 | { |
| 103 | struct mt7615_dev *dev; |
| 104 | |
| 105 | dev = container_of(work, struct mt7615_dev, mcu_work); |
| 106 | if (mt7663u_mcu_init(dev)) |
| 107 | return; |
| 108 | |
| 109 | mt7615_init_work(dev); |
| 110 | } |
| 111 | |
| 112 | static int mt7663u_probe(struct usb_interface *usb_intf, |
| 113 | const struct usb_device_id *id) |
| 114 | { |
| 115 | static const struct mt76_driver_ops drv_ops = { |
| 116 | .txwi_size = MT_USB_TXD_SIZE, |
| 117 | .drv_flags = MT_DRV_RX_DMA_HDR | MT_DRV_HW_MGMT_TXQ, |
| 118 | .tx_prepare_skb = mt7663_usb_sdio_tx_prepare_skb, |
| 119 | .tx_complete_skb = mt7663_usb_sdio_tx_complete_skb, |
| 120 | .tx_status_data = mt7663_usb_sdio_tx_status_data, |
| 121 | .rx_skb = mt7615_queue_rx_skb, |
| 122 | .sta_ps = mt7615_sta_ps, |
| 123 | .sta_add = mt7615_mac_sta_add, |
| 124 | .sta_remove = mt7615_mac_sta_remove, |
| 125 | .update_survey = mt7615_update_channel, |
| 126 | }; |
| 127 | static struct mt76_bus_ops bus_ops = { |
| 128 | .rr = mt7663u_rr, |
| 129 | .wr = mt7663u_wr, |
| 130 | .rmw = mt7663u_rmw, |
| 131 | .read_copy = mt76u_read_copy, |
| 132 | .write_copy = mt7663u_copy, |
| 133 | .type = MT76_BUS_USB, |
| 134 | }; |
| 135 | struct usb_device *udev = interface_to_usbdev(usb_intf); |
| 136 | struct ieee80211_ops *ops; |
| 137 | struct mt7615_dev *dev; |
| 138 | struct mt76_dev *mdev; |
| 139 | int ret; |
| 140 | |
| 141 | ops = devm_kmemdup(&usb_intf->dev, &mt7615_ops, sizeof(mt7615_ops), |
| 142 | GFP_KERNEL); |
| 143 | if (!ops) |
| 144 | return -ENOMEM; |
| 145 | |
| 146 | ops->stop = mt7663u_stop; |
| 147 | |
| 148 | mdev = mt76_alloc_device(&usb_intf->dev, sizeof(*dev), ops, &drv_ops); |
| 149 | if (!mdev) |
| 150 | return -ENOMEM; |
| 151 | |
| 152 | dev = container_of(mdev, struct mt7615_dev, mt76); |
| 153 | udev = usb_get_dev(udev); |
| 154 | usb_reset_device(udev); |
| 155 | |
| 156 | usb_set_intfdata(usb_intf, dev); |
| 157 | |
| 158 | INIT_WORK(&dev->mcu_work, mt7663u_init_work); |
| 159 | dev->reg_map = mt7663_usb_sdio_reg_map; |
| 160 | dev->ops = ops; |
| 161 | ret = __mt76u_init(mdev, usb_intf, &bus_ops); |
| 162 | if (ret < 0) |
| 163 | goto error; |
| 164 | |
| 165 | mdev->rev = (mt76_rr(dev, MT_HW_CHIPID) << 16) | |
| 166 | (mt76_rr(dev, MT_HW_REV) & 0xff); |
| 167 | dev_dbg(mdev->dev, "ASIC revision: %04x\n", mdev->rev); |
| 168 | |
| 169 | if (!mt76_poll_msec(dev, MT_CONN_ON_MISC, MT_TOP_MISC2_FW_PWR_ON, |
| 170 | FW_STATE_PWR_ON << 1, 500)) { |
| 171 | ret = mt7663u_mcu_power_on(dev); |
| 172 | if (ret) |
| 173 | goto error; |
| 174 | } else { |
| 175 | set_bit(MT76_STATE_POWER_OFF, &dev->mphy.state); |
| 176 | } |
| 177 | |
| 178 | ret = mt76u_alloc_mcu_queue(&dev->mt76); |
| 179 | if (ret) |
| 180 | goto error; |
| 181 | |
| 182 | ret = mt76u_alloc_queues(&dev->mt76); |
| 183 | if (ret) |
| 184 | goto error; |
| 185 | |
| 186 | ret = mt7663_usb_sdio_register_device(dev); |
| 187 | if (ret) |
| 188 | goto error; |
| 189 | |
| 190 | return 0; |
| 191 | |
| 192 | error: |
| 193 | mt76u_queues_deinit(&dev->mt76); |
| 194 | usb_set_intfdata(usb_intf, NULL); |
| 195 | usb_put_dev(interface_to_usbdev(usb_intf)); |
| 196 | |
| 197 | mt76_free_device(&dev->mt76); |
| 198 | |
| 199 | return ret; |
| 200 | } |
| 201 | |
| 202 | static void mt7663u_disconnect(struct usb_interface *usb_intf) |
| 203 | { |
| 204 | struct mt7615_dev *dev = usb_get_intfdata(usb_intf); |
| 205 | |
| 206 | if (!test_bit(MT76_STATE_INITIALIZED, &dev->mphy.state)) |
| 207 | return; |
| 208 | |
| 209 | ieee80211_unregister_hw(dev->mt76.hw); |
| 210 | mt7663u_cleanup(dev); |
| 211 | |
| 212 | usb_set_intfdata(usb_intf, NULL); |
| 213 | usb_put_dev(interface_to_usbdev(usb_intf)); |
| 214 | |
| 215 | mt76_free_device(&dev->mt76); |
| 216 | } |
| 217 | |
| 218 | #ifdef CONFIG_PM |
| 219 | static int mt7663u_suspend(struct usb_interface *intf, pm_message_t state) |
| 220 | { |
| 221 | struct mt7615_dev *dev = usb_get_intfdata(intf); |
| 222 | |
| 223 | if (!test_bit(MT76_STATE_SUSPEND, &dev->mphy.state) && |
| 224 | mt7615_firmware_offload(dev)) { |
| 225 | int err; |
| 226 | |
| 227 | err = mt76_connac_mcu_set_hif_suspend(&dev->mt76, true); |
| 228 | if (err < 0) |
| 229 | return err; |
| 230 | } |
| 231 | |
| 232 | mt76u_stop_rx(&dev->mt76); |
| 233 | mt76u_stop_tx(&dev->mt76); |
| 234 | |
| 235 | return 0; |
| 236 | } |
| 237 | |
| 238 | static int mt7663u_resume(struct usb_interface *intf) |
| 239 | { |
| 240 | struct mt7615_dev *dev = usb_get_intfdata(intf); |
| 241 | int err; |
| 242 | |
| 243 | err = mt76u_vendor_request(&dev->mt76, MT_VEND_FEATURE_SET, |
| 244 | USB_DIR_OUT | USB_TYPE_VENDOR, |
| 245 | 0x5, 0x0, NULL, 0); |
| 246 | if (err) |
| 247 | return err; |
| 248 | |
| 249 | err = mt76u_resume_rx(&dev->mt76); |
| 250 | if (err < 0) |
| 251 | return err; |
| 252 | |
| 253 | if (!test_bit(MT76_STATE_SUSPEND, &dev->mphy.state) && |
| 254 | mt7615_firmware_offload(dev)) |
| 255 | err = mt76_connac_mcu_set_hif_suspend(&dev->mt76, false); |
| 256 | |
| 257 | return err; |
| 258 | } |
| 259 | #endif /* CONFIG_PM */ |
| 260 | |
| 261 | MODULE_DEVICE_TABLE(usb, mt7615_device_table); |
| 262 | MODULE_FIRMWARE(MT7663_OFFLOAD_FIRMWARE_N9); |
| 263 | MODULE_FIRMWARE(MT7663_OFFLOAD_ROM_PATCH); |
| 264 | MODULE_FIRMWARE(MT7663_FIRMWARE_N9); |
| 265 | MODULE_FIRMWARE(MT7663_ROM_PATCH); |
| 266 | |
| 267 | static struct usb_driver mt7663u_driver = { |
| 268 | .name = KBUILD_MODNAME, |
| 269 | .id_table = mt7615_device_table, |
| 270 | .probe = mt7663u_probe, |
| 271 | .disconnect = mt7663u_disconnect, |
| 272 | #ifdef CONFIG_PM |
| 273 | .suspend = mt7663u_suspend, |
| 274 | .resume = mt7663u_resume, |
| 275 | .reset_resume = mt7663u_resume, |
| 276 | #endif /* CONFIG_PM */ |
| 277 | .soft_unbind = 1, |
| 278 | .disable_hub_initiated_lpm = 1, |
| 279 | }; |
| 280 | module_usb_driver(mt7663u_driver); |
| 281 | |
| 282 | MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>"); |
| 283 | MODULE_AUTHOR("Lorenzo Bianconi <lorenzo@kernel.org>"); |
| 284 | MODULE_LICENSE("Dual BSD/GPL"); |