developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: ISC |
| 2 | /* Copyright (C) 2020 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/iopoll.h> |
| 11 | #include <linux/module.h> |
| 12 | |
| 13 | #include <linux/mmc/host.h> |
| 14 | #include <linux/mmc/sdio_ids.h> |
| 15 | #include <linux/mmc/sdio_func.h> |
| 16 | |
| 17 | #include "../sdio.h" |
| 18 | #include "mt7615.h" |
| 19 | #include "mac.h" |
| 20 | #include "mcu.h" |
| 21 | |
| 22 | static const struct sdio_device_id mt7663s_table[] = { |
| 23 | { SDIO_DEVICE(SDIO_VENDOR_ID_MEDIATEK, 0x7603) }, |
| 24 | { } /* Terminating entry */ |
| 25 | }; |
| 26 | |
| 27 | static void mt7663s_txrx_worker(struct mt76_worker *w) |
| 28 | { |
| 29 | struct mt76_sdio *sdio = container_of(w, struct mt76_sdio, |
| 30 | txrx_worker); |
| 31 | struct mt76_dev *mdev = container_of(sdio, struct mt76_dev, sdio); |
| 32 | struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); |
| 33 | |
| 34 | if (!mt76_connac_pm_ref(&dev->mphy, &dev->pm)) { |
| 35 | queue_work(mdev->wq, &dev->pm.wake_work); |
| 36 | return; |
| 37 | } |
| 38 | mt76s_txrx_worker(sdio); |
| 39 | mt76_connac_pm_unref(&dev->mphy, &dev->pm); |
| 40 | } |
| 41 | |
| 42 | static void mt7663s_init_work(struct work_struct *work) |
| 43 | { |
| 44 | struct mt7615_dev *dev; |
| 45 | |
| 46 | dev = container_of(work, struct mt7615_dev, mcu_work); |
| 47 | if (mt7663s_mcu_init(dev)) |
| 48 | return; |
| 49 | |
| 50 | mt7615_init_work(dev); |
| 51 | } |
| 52 | |
| 53 | static int mt7663s_parse_intr(struct mt76_dev *dev, struct mt76s_intr *intr) |
| 54 | { |
| 55 | struct mt76_sdio *sdio = &dev->sdio; |
| 56 | struct mt7663s_intr *irq_data = sdio->intr_data; |
| 57 | int i, err; |
| 58 | |
| 59 | sdio_claim_host(sdio->func); |
| 60 | err = sdio_readsb(sdio->func, irq_data, MCR_WHISR, sizeof(*irq_data)); |
| 61 | sdio_release_host(sdio->func); |
| 62 | |
| 63 | if (err) |
| 64 | return err; |
| 65 | |
| 66 | intr->isr = irq_data->isr; |
| 67 | intr->rec_mb = irq_data->rec_mb; |
| 68 | intr->tx.wtqcr = irq_data->tx.wtqcr; |
| 69 | intr->rx.num = irq_data->rx.num; |
| 70 | for (i = 0; i < 2 ; i++) |
| 71 | intr->rx.len[i] = irq_data->rx.len[i]; |
| 72 | |
| 73 | return 0; |
| 74 | } |
| 75 | |
| 76 | static int mt7663s_probe(struct sdio_func *func, |
| 77 | const struct sdio_device_id *id) |
| 78 | { |
| 79 | static const struct mt76_driver_ops drv_ops = { |
| 80 | .txwi_size = MT_USB_TXD_SIZE, |
| 81 | .drv_flags = MT_DRV_RX_DMA_HDR, |
| 82 | .tx_prepare_skb = mt7663_usb_sdio_tx_prepare_skb, |
| 83 | .tx_complete_skb = mt7663_usb_sdio_tx_complete_skb, |
| 84 | .tx_status_data = mt7663_usb_sdio_tx_status_data, |
| 85 | .rx_skb = mt7615_queue_rx_skb, |
| 86 | .sta_ps = mt7615_sta_ps, |
| 87 | .sta_add = mt7615_mac_sta_add, |
| 88 | .sta_remove = mt7615_mac_sta_remove, |
| 89 | .update_survey = mt7615_update_channel, |
| 90 | }; |
| 91 | static const struct mt76_bus_ops mt7663s_ops = { |
| 92 | .rr = mt76s_rr, |
| 93 | .rmw = mt76s_rmw, |
| 94 | .wr = mt76s_wr, |
| 95 | .write_copy = mt76s_write_copy, |
| 96 | .read_copy = mt76s_read_copy, |
| 97 | .wr_rp = mt76s_wr_rp, |
| 98 | .rd_rp = mt76s_rd_rp, |
| 99 | .type = MT76_BUS_SDIO, |
| 100 | }; |
| 101 | struct ieee80211_ops *ops; |
| 102 | struct mt7615_dev *dev; |
| 103 | struct mt76_dev *mdev; |
| 104 | int ret; |
| 105 | |
| 106 | ops = devm_kmemdup(&func->dev, &mt7615_ops, sizeof(mt7615_ops), |
| 107 | GFP_KERNEL); |
| 108 | if (!ops) |
| 109 | return -ENOMEM; |
| 110 | |
| 111 | mdev = mt76_alloc_device(&func->dev, sizeof(*dev), ops, &drv_ops); |
| 112 | if (!mdev) |
| 113 | return -ENOMEM; |
| 114 | |
| 115 | dev = container_of(mdev, struct mt7615_dev, mt76); |
| 116 | |
| 117 | INIT_WORK(&dev->mcu_work, mt7663s_init_work); |
| 118 | dev->reg_map = mt7663_usb_sdio_reg_map; |
| 119 | dev->ops = ops; |
| 120 | sdio_set_drvdata(func, dev); |
| 121 | |
| 122 | ret = mt76s_init(mdev, func, &mt7663s_ops); |
| 123 | if (ret < 0) |
| 124 | goto error; |
| 125 | |
| 126 | ret = mt76s_hw_init(mdev, func, MT76_CONNAC_SDIO); |
| 127 | if (ret) |
| 128 | goto error; |
| 129 | |
| 130 | mdev->rev = (mt76_rr(dev, MT_HW_CHIPID) << 16) | |
| 131 | (mt76_rr(dev, MT_HW_REV) & 0xff); |
| 132 | dev_dbg(mdev->dev, "ASIC revision: %04x\n", mdev->rev); |
| 133 | |
| 134 | mdev->sdio.parse_irq = mt7663s_parse_intr; |
| 135 | mdev->sdio.intr_data = devm_kmalloc(mdev->dev, |
| 136 | sizeof(struct mt7663s_intr), |
| 137 | GFP_KERNEL); |
| 138 | if (!mdev->sdio.intr_data) { |
| 139 | ret = -ENOMEM; |
| 140 | goto error; |
| 141 | } |
| 142 | |
| 143 | ret = mt76s_alloc_rx_queue(mdev, MT_RXQ_MAIN); |
| 144 | if (ret) |
| 145 | goto error; |
| 146 | |
| 147 | ret = mt76s_alloc_tx(mdev); |
| 148 | if (ret) |
| 149 | goto error; |
| 150 | |
| 151 | ret = mt76_worker_setup(mt76_hw(dev), &mdev->sdio.txrx_worker, |
| 152 | mt7663s_txrx_worker, "sdio-txrx"); |
| 153 | if (ret) |
| 154 | goto error; |
| 155 | |
| 156 | sched_set_fifo_low(mdev->sdio.txrx_worker.task); |
| 157 | |
| 158 | ret = mt7663_usb_sdio_register_device(dev); |
| 159 | if (ret) |
| 160 | goto error; |
| 161 | |
| 162 | return 0; |
| 163 | |
| 164 | error: |
| 165 | mt76s_deinit(&dev->mt76); |
| 166 | mt76_free_device(&dev->mt76); |
| 167 | |
| 168 | return ret; |
| 169 | } |
| 170 | |
| 171 | static void mt7663s_remove(struct sdio_func *func) |
| 172 | { |
| 173 | struct mt7615_dev *dev = sdio_get_drvdata(func); |
| 174 | |
| 175 | if (!test_and_clear_bit(MT76_STATE_INITIALIZED, &dev->mphy.state)) |
| 176 | return; |
| 177 | |
| 178 | ieee80211_unregister_hw(dev->mt76.hw); |
| 179 | mt76s_deinit(&dev->mt76); |
| 180 | mt76_free_device(&dev->mt76); |
| 181 | } |
| 182 | |
| 183 | #ifdef CONFIG_PM |
| 184 | static int mt7663s_suspend(struct device *dev) |
| 185 | { |
| 186 | struct sdio_func *func = dev_to_sdio_func(dev); |
| 187 | struct mt7615_dev *mdev = sdio_get_drvdata(func); |
| 188 | int err; |
| 189 | |
| 190 | if (!test_bit(MT76_STATE_SUSPEND, &mdev->mphy.state) && |
| 191 | mt7615_firmware_offload(mdev)) { |
| 192 | int err; |
| 193 | |
| 194 | err = mt76_connac_mcu_set_hif_suspend(&mdev->mt76, true); |
| 195 | if (err < 0) |
| 196 | return err; |
| 197 | } |
| 198 | |
| 199 | sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); |
| 200 | |
| 201 | err = mt7615_mcu_set_fw_ctrl(mdev); |
| 202 | if (err) |
| 203 | return err; |
| 204 | |
| 205 | mt76_worker_disable(&mdev->mt76.sdio.txrx_worker); |
| 206 | mt76_worker_disable(&mdev->mt76.sdio.status_worker); |
| 207 | mt76_worker_disable(&mdev->mt76.sdio.net_worker); |
| 208 | |
| 209 | cancel_work_sync(&mdev->mt76.sdio.stat_work); |
| 210 | clear_bit(MT76_READING_STATS, &mdev->mphy.state); |
| 211 | |
| 212 | mt76_tx_status_check(&mdev->mt76, true); |
| 213 | |
| 214 | return 0; |
| 215 | } |
| 216 | |
| 217 | static int mt7663s_resume(struct device *dev) |
| 218 | { |
| 219 | struct sdio_func *func = dev_to_sdio_func(dev); |
| 220 | struct mt7615_dev *mdev = sdio_get_drvdata(func); |
| 221 | int err; |
| 222 | |
| 223 | mt76_worker_enable(&mdev->mt76.sdio.txrx_worker); |
| 224 | mt76_worker_enable(&mdev->mt76.sdio.status_worker); |
| 225 | mt76_worker_enable(&mdev->mt76.sdio.net_worker); |
| 226 | |
| 227 | err = mt7615_mcu_set_drv_ctrl(mdev); |
| 228 | if (err) |
| 229 | return err; |
| 230 | |
| 231 | if (!test_bit(MT76_STATE_SUSPEND, &mdev->mphy.state) && |
| 232 | mt7615_firmware_offload(mdev)) |
| 233 | err = mt76_connac_mcu_set_hif_suspend(&mdev->mt76, false); |
| 234 | |
| 235 | return err; |
| 236 | } |
| 237 | |
| 238 | static const struct dev_pm_ops mt7663s_pm_ops = { |
| 239 | .suspend = mt7663s_suspend, |
| 240 | .resume = mt7663s_resume, |
| 241 | }; |
| 242 | #endif |
| 243 | |
| 244 | MODULE_DEVICE_TABLE(sdio, mt7663s_table); |
| 245 | MODULE_FIRMWARE(MT7663_OFFLOAD_FIRMWARE_N9); |
| 246 | MODULE_FIRMWARE(MT7663_OFFLOAD_ROM_PATCH); |
| 247 | MODULE_FIRMWARE(MT7663_FIRMWARE_N9); |
| 248 | MODULE_FIRMWARE(MT7663_ROM_PATCH); |
| 249 | |
| 250 | static struct sdio_driver mt7663s_driver = { |
| 251 | .name = KBUILD_MODNAME, |
| 252 | .probe = mt7663s_probe, |
| 253 | .remove = mt7663s_remove, |
| 254 | .id_table = mt7663s_table, |
| 255 | #ifdef CONFIG_PM |
| 256 | .drv = { |
| 257 | .pm = &mt7663s_pm_ops, |
| 258 | } |
| 259 | #endif |
| 260 | }; |
| 261 | module_sdio_driver(mt7663s_driver); |
| 262 | |
| 263 | MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>"); |
| 264 | MODULE_AUTHOR("Lorenzo Bianconi <lorenzo@kernel.org>"); |
| 265 | MODULE_LICENSE("Dual BSD/GPL"); |