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 err = sdio_readsb(sdio->func, irq_data, MCR_WHISR, sizeof(*irq_data)); 60 if (err) 61 return err; 62 63 intr->isr = irq_data->isr; 64 intr->rec_mb = irq_data->rec_mb; 65 intr->tx.wtqcr = irq_data->tx.wtqcr; 66 intr->rx.num = irq_data->rx.num; 67 for (i = 0; i < 2 ; i++) 68 intr->rx.len[i] = irq_data->rx.len[i]; 69 70 return 0; 71 } 72 73 static int mt7663s_probe(struct sdio_func *func, 74 const struct sdio_device_id *id) 75 { 76 static const struct mt76_driver_ops drv_ops = { 77 .txwi_size = MT_USB_TXD_SIZE, 78 .drv_flags = MT_DRV_RX_DMA_HDR, 79 .tx_prepare_skb = mt7663_usb_sdio_tx_prepare_skb, 80 .tx_complete_skb = mt7663_usb_sdio_tx_complete_skb, 81 .tx_status_data = mt7663_usb_sdio_tx_status_data, 82 .rx_skb = mt7615_queue_rx_skb, 83 .sta_ps = mt7615_sta_ps, 84 .sta_add = mt7615_mac_sta_add, 85 .sta_remove = mt7615_mac_sta_remove, 86 .update_survey = mt7615_update_channel, 87 }; 88 static const struct mt76_bus_ops mt7663s_ops = { 89 .rr = mt76s_rr, 90 .rmw = mt76s_rmw, 91 .wr = mt76s_wr, 92 .write_copy = mt76s_write_copy, 93 .read_copy = mt76s_read_copy, 94 .wr_rp = mt76s_wr_rp, 95 .rd_rp = mt76s_rd_rp, 96 .type = MT76_BUS_SDIO, 97 }; 98 struct ieee80211_ops *ops; 99 struct mt7615_dev *dev; 100 struct mt76_dev *mdev; 101 int i, ret; 102 103 ops = devm_kmemdup(&func->dev, &mt7615_ops, sizeof(mt7615_ops), 104 GFP_KERNEL); 105 if (!ops) 106 return -ENOMEM; 107 108 mdev = mt76_alloc_device(&func->dev, sizeof(*dev), ops, &drv_ops); 109 if (!mdev) 110 return -ENOMEM; 111 112 dev = container_of(mdev, struct mt7615_dev, mt76); 113 114 INIT_WORK(&dev->mcu_work, mt7663s_init_work); 115 dev->reg_map = mt7663_usb_sdio_reg_map; 116 dev->ops = ops; 117 sdio_set_drvdata(func, dev); 118 119 ret = mt76s_init(mdev, func, &mt7663s_ops); 120 if (ret < 0) 121 goto error; 122 123 ret = mt76s_hw_init(mdev, func, MT76_CONNAC_SDIO); 124 if (ret) 125 goto error; 126 127 mdev->rev = (mt76_rr(dev, MT_HW_CHIPID) << 16) | 128 (mt76_rr(dev, MT_HW_REV) & 0xff); 129 dev_dbg(mdev->dev, "ASIC revision: %04x\n", mdev->rev); 130 131 mdev->sdio.parse_irq = mt7663s_parse_intr; 132 mdev->sdio.intr_data = devm_kmalloc(mdev->dev, 133 sizeof(struct mt7663s_intr), 134 GFP_KERNEL); 135 if (!mdev->sdio.intr_data) { 136 ret = -ENOMEM; 137 goto error; 138 } 139 140 for (i = 0; i < ARRAY_SIZE(mdev->sdio.xmit_buf); i++) { 141 mdev->sdio.xmit_buf[i] = devm_kmalloc(mdev->dev, 142 MT76S_XMIT_BUF_SZ, 143 GFP_KERNEL); 144 if (!mdev->sdio.xmit_buf[i]) { 145 ret = -ENOMEM; 146 goto error; 147 } 148 } 149 150 ret = mt76s_alloc_rx_queue(mdev, MT_RXQ_MAIN); 151 if (ret) 152 goto error; 153 154 ret = mt76s_alloc_tx(mdev); 155 if (ret) 156 goto error; 157 158 ret = mt76_worker_setup(mt76_hw(dev), &mdev->sdio.txrx_worker, 159 mt7663s_txrx_worker, "sdio-txrx"); 160 if (ret) 161 goto error; 162 163 sched_set_fifo_low(mdev->sdio.txrx_worker.task); 164 165 ret = mt7663_usb_sdio_register_device(dev); 166 if (ret) 167 goto error; 168 169 return 0; 170 171 error: 172 mt76s_deinit(&dev->mt76); 173 mt76_free_device(&dev->mt76); 174 175 return ret; 176 } 177 178 static void mt7663s_remove(struct sdio_func *func) 179 { 180 struct mt7615_dev *dev = sdio_get_drvdata(func); 181 182 if (!test_and_clear_bit(MT76_STATE_INITIALIZED, &dev->mphy.state)) 183 return; 184 185 ieee80211_unregister_hw(dev->mt76.hw); 186 mt76s_deinit(&dev->mt76); 187 mt76_free_device(&dev->mt76); 188 } 189 190 #ifdef CONFIG_PM 191 static int mt7663s_suspend(struct device *dev) 192 { 193 struct sdio_func *func = dev_to_sdio_func(dev); 194 struct mt7615_dev *mdev = sdio_get_drvdata(func); 195 int err; 196 197 if (!test_bit(MT76_STATE_SUSPEND, &mdev->mphy.state) && 198 mt7615_firmware_offload(mdev)) { 199 int err; 200 201 err = mt76_connac_mcu_set_hif_suspend(&mdev->mt76, true); 202 if (err < 0) 203 return err; 204 } 205 206 sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); 207 208 err = mt7615_mcu_set_fw_ctrl(mdev); 209 if (err) 210 return err; 211 212 mt76_worker_disable(&mdev->mt76.sdio.txrx_worker); 213 mt76_worker_disable(&mdev->mt76.sdio.status_worker); 214 mt76_worker_disable(&mdev->mt76.sdio.net_worker); 215 216 cancel_work_sync(&mdev->mt76.sdio.stat_work); 217 clear_bit(MT76_READING_STATS, &mdev->mphy.state); 218 219 mt76_tx_status_check(&mdev->mt76, true); 220 221 return 0; 222 } 223 224 static int mt7663s_resume(struct device *dev) 225 { 226 struct sdio_func *func = dev_to_sdio_func(dev); 227 struct mt7615_dev *mdev = sdio_get_drvdata(func); 228 int err; 229 230 mt76_worker_enable(&mdev->mt76.sdio.txrx_worker); 231 mt76_worker_enable(&mdev->mt76.sdio.status_worker); 232 mt76_worker_enable(&mdev->mt76.sdio.net_worker); 233 234 err = mt7615_mcu_set_drv_ctrl(mdev); 235 if (err) 236 return err; 237 238 if (!test_bit(MT76_STATE_SUSPEND, &mdev->mphy.state) && 239 mt7615_firmware_offload(mdev)) 240 err = mt76_connac_mcu_set_hif_suspend(&mdev->mt76, false); 241 242 return err; 243 } 244 245 static const struct dev_pm_ops mt7663s_pm_ops = { 246 .suspend = mt7663s_suspend, 247 .resume = mt7663s_resume, 248 }; 249 #endif 250 251 MODULE_DEVICE_TABLE(sdio, mt7663s_table); 252 MODULE_FIRMWARE(MT7663_OFFLOAD_FIRMWARE_N9); 253 MODULE_FIRMWARE(MT7663_OFFLOAD_ROM_PATCH); 254 MODULE_FIRMWARE(MT7663_FIRMWARE_N9); 255 MODULE_FIRMWARE(MT7663_ROM_PATCH); 256 257 static struct sdio_driver mt7663s_driver = { 258 .name = KBUILD_MODNAME, 259 .probe = mt7663s_probe, 260 .remove = mt7663s_remove, 261 .id_table = mt7663s_table, 262 #ifdef CONFIG_PM 263 .drv = { 264 .pm = &mt7663s_pm_ops, 265 } 266 #endif 267 }; 268 module_sdio_driver(mt7663s_driver); 269 270 MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>"); 271 MODULE_AUTHOR("Lorenzo Bianconi <lorenzo@kernel.org>"); 272 MODULE_LICENSE("Dual BSD/GPL"); 273