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1// SPDX-License-Identifier: ISC2/* 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 22static const struct sdio_device_id mt7663s_table[] = {23 { SDIO_DEVICE(SDIO_VENDOR_ID_MEDIATEK, 0x7603) },24 { } /* Terminating entry */25};26 27static 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 42static 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 53static 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 76static 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 .rx_check = mt7615_rx_check,87 .sta_add = mt7615_mac_sta_add,88 .sta_remove = mt7615_mac_sta_remove,89 .update_survey = mt7615_update_channel,90 .set_channel = mt7615_set_channel,91 };92 static const struct mt76_bus_ops mt7663s_ops = {93 .rr = mt76s_rr,94 .rmw = mt76s_rmw,95 .wr = mt76s_wr,96 .write_copy = mt76s_write_copy,97 .read_copy = mt76s_read_copy,98 .wr_rp = mt76s_wr_rp,99 .rd_rp = mt76s_rd_rp,100 .type = MT76_BUS_SDIO,101 };102 struct ieee80211_ops *ops;103 struct mt7615_dev *dev;104 struct mt76_dev *mdev;105 int ret;106 107 ops = devm_kmemdup(&func->dev, &mt7615_ops, sizeof(mt7615_ops),108 GFP_KERNEL);109 if (!ops)110 return -ENOMEM;111 112 mdev = mt76_alloc_device(&func->dev, sizeof(*dev), ops, &drv_ops);113 if (!mdev)114 return -ENOMEM;115 116 dev = container_of(mdev, struct mt7615_dev, mt76);117 118 INIT_WORK(&dev->mcu_work, mt7663s_init_work);119 dev->reg_map = mt7663_usb_sdio_reg_map;120 dev->ops = ops;121 sdio_set_drvdata(func, dev);122 123 ret = mt76s_init(mdev, func, &mt7663s_ops);124 if (ret < 0)125 goto error;126 127 ret = mt76s_hw_init(mdev, func, MT76_CONNAC_SDIO);128 if (ret)129 goto error;130 131 mdev->rev = (mt76_rr(dev, MT_HW_CHIPID) << 16) |132 (mt76_rr(dev, MT_HW_REV) & 0xff);133 dev_dbg(mdev->dev, "ASIC revision: %04x\n", mdev->rev);134 135 mdev->sdio.parse_irq = mt7663s_parse_intr;136 mdev->sdio.intr_data = devm_kmalloc(mdev->dev,137 sizeof(struct mt7663s_intr),138 GFP_KERNEL);139 if (!mdev->sdio.intr_data) {140 ret = -ENOMEM;141 goto error;142 }143 144 ret = mt76s_alloc_rx_queue(mdev, MT_RXQ_MAIN);145 if (ret)146 goto error;147 148 ret = mt76s_alloc_tx(mdev);149 if (ret)150 goto error;151 152 ret = mt76_worker_setup(mt76_hw(dev), &mdev->sdio.txrx_worker,153 mt7663s_txrx_worker, "sdio-txrx");154 if (ret)155 goto error;156 157 sched_set_fifo_low(mdev->sdio.txrx_worker.task);158 159 ret = mt7663_usb_sdio_register_device(dev);160 if (ret)161 goto error;162 163 return 0;164 165error:166 mt76s_deinit(&dev->mt76);167 mt76_free_device(&dev->mt76);168 169 return ret;170}171 172static void mt7663s_remove(struct sdio_func *func)173{174 struct mt7615_dev *dev = sdio_get_drvdata(func);175 176 if (!test_and_clear_bit(MT76_STATE_INITIALIZED, &dev->mphy.state))177 return;178 179 ieee80211_unregister_hw(dev->mt76.hw);180 mt76s_deinit(&dev->mt76);181 mt76_free_device(&dev->mt76);182}183 184static 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 mt76_worker_disable(&mdev->mt76.sdio.stat_worker);209 210 clear_bit(MT76_READING_STATS, &mdev->mphy.state);211 212 mt76_tx_status_check(&mdev->mt76, true);213 214 return 0;215}216 217static 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 238MODULE_DEVICE_TABLE(sdio, mt7663s_table);239MODULE_FIRMWARE(MT7663_OFFLOAD_FIRMWARE_N9);240MODULE_FIRMWARE(MT7663_OFFLOAD_ROM_PATCH);241MODULE_FIRMWARE(MT7663_FIRMWARE_N9);242MODULE_FIRMWARE(MT7663_ROM_PATCH);243 244static DEFINE_SIMPLE_DEV_PM_OPS(mt7663s_pm_ops, mt7663s_suspend, mt7663s_resume);245 246static struct sdio_driver mt7663s_driver = {247 .name = KBUILD_MODNAME,248 .probe = mt7663s_probe,249 .remove = mt7663s_remove,250 .id_table = mt7663s_table,251 .drv.pm = pm_sleep_ptr(&mt7663s_pm_ops),252};253module_sdio_driver(mt7663s_driver);254 255MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");256MODULE_AUTHOR("Lorenzo Bianconi <lorenzo@kernel.org>");257MODULE_DESCRIPTION("MediaTek MT7663S (SDIO) wireless driver");258MODULE_LICENSE("Dual BSD/GPL");259