diff options
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt7615/sdio.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7615/sdio.c | 257 |
1 files changed, 257 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/sdio.c b/drivers/net/wireless/mediatek/mt76/mt7615/sdio.c new file mode 100644 index 000000000..d742b2242 --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/mt7615/sdio.c @@ -0,0 +1,257 @@ +// SPDX-License-Identifier: ISC +/* Copyright (C) 2020 MediaTek Inc. + * + * Author: Felix Fietkau <nbd@nbd.name> + * Lorenzo Bianconi <lorenzo@kernel.org> + * Sean Wang <sean.wang@mediatek.com> + */ + +#include <linux/kernel.h> +#include <linux/iopoll.h> +#include <linux/module.h> + +#include <linux/mmc/host.h> +#include <linux/mmc/sdio_ids.h> +#include <linux/mmc/sdio_func.h> + +#include "../sdio.h" +#include "mt7615.h" +#include "mac.h" +#include "mcu.h" + +static const struct sdio_device_id mt7663s_table[] = { + { SDIO_DEVICE(SDIO_VENDOR_ID_MEDIATEK, 0x7603) }, + { } /* Terminating entry */ +}; + +static void mt7663s_txrx_worker(struct mt76_worker *w) +{ + struct mt76_sdio *sdio = container_of(w, struct mt76_sdio, + txrx_worker); + struct mt76_dev *mdev = container_of(sdio, struct mt76_dev, sdio); + struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); + + if (!mt76_connac_pm_ref(&dev->mphy, &dev->pm)) { + queue_work(mdev->wq, &dev->pm.wake_work); + return; + } + mt76s_txrx_worker(sdio); + mt76_connac_pm_unref(&dev->mphy, &dev->pm); +} + +static void mt7663s_init_work(struct work_struct *work) +{ + struct mt7615_dev *dev; + + dev = container_of(work, struct mt7615_dev, mcu_work); + if (mt7663s_mcu_init(dev)) + return; + + mt7615_init_work(dev); +} + +static int mt7663s_parse_intr(struct mt76_dev *dev, struct mt76s_intr *intr) +{ + struct mt76_sdio *sdio = &dev->sdio; + struct mt7663s_intr *irq_data = sdio->intr_data; + int i, err; + + sdio_claim_host(sdio->func); + err = sdio_readsb(sdio->func, irq_data, MCR_WHISR, sizeof(*irq_data)); + sdio_release_host(sdio->func); + + if (err) + return err; + + intr->isr = irq_data->isr; + intr->rec_mb = irq_data->rec_mb; + intr->tx.wtqcr = irq_data->tx.wtqcr; + intr->rx.num = irq_data->rx.num; + for (i = 0; i < 2 ; i++) + intr->rx.len[i] = irq_data->rx.len[i]; + + return 0; +} + +static int mt7663s_probe(struct sdio_func *func, + const struct sdio_device_id *id) +{ + static const struct mt76_driver_ops drv_ops = { + .txwi_size = MT_USB_TXD_SIZE, + .drv_flags = MT_DRV_RX_DMA_HDR, + .tx_prepare_skb = mt7663_usb_sdio_tx_prepare_skb, + .tx_complete_skb = mt7663_usb_sdio_tx_complete_skb, + .tx_status_data = mt7663_usb_sdio_tx_status_data, + .rx_skb = mt7615_queue_rx_skb, + .rx_check = mt7615_rx_check, + .sta_ps = mt7615_sta_ps, + .sta_add = mt7615_mac_sta_add, + .sta_remove = mt7615_mac_sta_remove, + .update_survey = mt7615_update_channel, + }; + static const struct mt76_bus_ops mt7663s_ops = { + .rr = mt76s_rr, + .rmw = mt76s_rmw, + .wr = mt76s_wr, + .write_copy = mt76s_write_copy, + .read_copy = mt76s_read_copy, + .wr_rp = mt76s_wr_rp, + .rd_rp = mt76s_rd_rp, + .type = MT76_BUS_SDIO, + }; + struct ieee80211_ops *ops; + struct mt7615_dev *dev; + struct mt76_dev *mdev; + int ret; + + ops = devm_kmemdup(&func->dev, &mt7615_ops, sizeof(mt7615_ops), + GFP_KERNEL); + if (!ops) + return -ENOMEM; + + mdev = mt76_alloc_device(&func->dev, sizeof(*dev), ops, &drv_ops); + if (!mdev) + return -ENOMEM; + + dev = container_of(mdev, struct mt7615_dev, mt76); + + INIT_WORK(&dev->mcu_work, mt7663s_init_work); + dev->reg_map = mt7663_usb_sdio_reg_map; + dev->ops = ops; + sdio_set_drvdata(func, dev); + + ret = mt76s_init(mdev, func, &mt7663s_ops); + if (ret < 0) + goto error; + + ret = mt76s_hw_init(mdev, func, MT76_CONNAC_SDIO); + if (ret) + goto error; + + mdev->rev = (mt76_rr(dev, MT_HW_CHIPID) << 16) | + (mt76_rr(dev, MT_HW_REV) & 0xff); + dev_dbg(mdev->dev, "ASIC revision: %04x\n", mdev->rev); + + mdev->sdio.parse_irq = mt7663s_parse_intr; + mdev->sdio.intr_data = devm_kmalloc(mdev->dev, + sizeof(struct mt7663s_intr), + GFP_KERNEL); + if (!mdev->sdio.intr_data) { + ret = -ENOMEM; + goto error; + } + + ret = mt76s_alloc_rx_queue(mdev, MT_RXQ_MAIN); + if (ret) + goto error; + + ret = mt76s_alloc_tx(mdev); + if (ret) + goto error; + + ret = mt76_worker_setup(mt76_hw(dev), &mdev->sdio.txrx_worker, + mt7663s_txrx_worker, "sdio-txrx"); + if (ret) + goto error; + + sched_set_fifo_low(mdev->sdio.txrx_worker.task); + + ret = mt7663_usb_sdio_register_device(dev); + if (ret) + goto error; + + return 0; + +error: + mt76s_deinit(&dev->mt76); + mt76_free_device(&dev->mt76); + + return ret; +} + +static void mt7663s_remove(struct sdio_func *func) +{ + struct mt7615_dev *dev = sdio_get_drvdata(func); + + if (!test_and_clear_bit(MT76_STATE_INITIALIZED, &dev->mphy.state)) + return; + + ieee80211_unregister_hw(dev->mt76.hw); + mt76s_deinit(&dev->mt76); + mt76_free_device(&dev->mt76); +} + +static int mt7663s_suspend(struct device *dev) +{ + struct sdio_func *func = dev_to_sdio_func(dev); + struct mt7615_dev *mdev = sdio_get_drvdata(func); + int err; + + if (!test_bit(MT76_STATE_SUSPEND, &mdev->mphy.state) && + mt7615_firmware_offload(mdev)) { + int err; + + err = mt76_connac_mcu_set_hif_suspend(&mdev->mt76, true); + if (err < 0) + return err; + } + + sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); + + err = mt7615_mcu_set_fw_ctrl(mdev); + if (err) + return err; + + mt76_worker_disable(&mdev->mt76.sdio.txrx_worker); + mt76_worker_disable(&mdev->mt76.sdio.status_worker); + mt76_worker_disable(&mdev->mt76.sdio.net_worker); + mt76_worker_disable(&mdev->mt76.sdio.stat_worker); + + clear_bit(MT76_READING_STATS, &mdev->mphy.state); + + mt76_tx_status_check(&mdev->mt76, true); + + return 0; +} + +static int mt7663s_resume(struct device *dev) +{ + struct sdio_func *func = dev_to_sdio_func(dev); + struct mt7615_dev *mdev = sdio_get_drvdata(func); + int err; + + mt76_worker_enable(&mdev->mt76.sdio.txrx_worker); + mt76_worker_enable(&mdev->mt76.sdio.status_worker); + mt76_worker_enable(&mdev->mt76.sdio.net_worker); + + err = mt7615_mcu_set_drv_ctrl(mdev); + if (err) + return err; + + if (!test_bit(MT76_STATE_SUSPEND, &mdev->mphy.state) && + mt7615_firmware_offload(mdev)) + err = mt76_connac_mcu_set_hif_suspend(&mdev->mt76, false); + + return err; +} + +MODULE_DEVICE_TABLE(sdio, mt7663s_table); +MODULE_FIRMWARE(MT7663_OFFLOAD_FIRMWARE_N9); +MODULE_FIRMWARE(MT7663_OFFLOAD_ROM_PATCH); +MODULE_FIRMWARE(MT7663_FIRMWARE_N9); +MODULE_FIRMWARE(MT7663_ROM_PATCH); + +static DEFINE_SIMPLE_DEV_PM_OPS(mt7663s_pm_ops, mt7663s_suspend, mt7663s_resume); + +static struct sdio_driver mt7663s_driver = { + .name = KBUILD_MODNAME, + .probe = mt7663s_probe, + .remove = mt7663s_remove, + .id_table = mt7663s_table, + .drv.pm = pm_sleep_ptr(&mt7663s_pm_ops), +}; +module_sdio_driver(mt7663s_driver); + +MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>"); +MODULE_AUTHOR("Lorenzo Bianconi <lorenzo@kernel.org>"); +MODULE_LICENSE("Dual BSD/GPL"); |