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// 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_add = mt7615_mac_sta_add,
.sta_remove = mt7615_mac_sta_remove,
.update_survey = mt7615_update_channel,
.set_channel = mt7615_set_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, 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, true);
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_DESCRIPTION("MediaTek MT7663S (SDIO) wireless driver");
MODULE_LICENSE("Dual BSD/GPL");
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