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// SPDX-License-Identifier: ISC
/*
* Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include "mt76x0.h"
#include "mcu.h"
static int mt76x0e_start(struct ieee80211_hw *hw)
{
struct mt76x02_dev *dev = hw->priv;
mt76x02_mac_start(dev);
mt76x0_phy_calibrate(dev, true);
ieee80211_queue_delayed_work(dev->mt76.hw, &dev->mphy.mac_work,
MT_MAC_WORK_INTERVAL);
ieee80211_queue_delayed_work(dev->mt76.hw, &dev->cal_work,
MT_CALIBRATE_INTERVAL);
set_bit(MT76_STATE_RUNNING, &dev->mphy.state);
return 0;
}
static void mt76x0e_stop_hw(struct mt76x02_dev *dev)
{
cancel_delayed_work_sync(&dev->cal_work);
cancel_delayed_work_sync(&dev->mphy.mac_work);
clear_bit(MT76_RESTART, &dev->mphy.state);
if (!mt76_poll(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_TX_DMA_BUSY,
0, 1000))
dev_warn(dev->mt76.dev, "TX DMA did not stop\n");
mt76_clear(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_TX_DMA_EN);
mt76x0_mac_stop(dev);
if (!mt76_poll(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_RX_DMA_BUSY,
0, 1000))
dev_warn(dev->mt76.dev, "TX DMA did not stop\n");
mt76_clear(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_RX_DMA_EN);
}
static void mt76x0e_stop(struct ieee80211_hw *hw)
{
struct mt76x02_dev *dev = hw->priv;
clear_bit(MT76_STATE_RUNNING, &dev->mphy.state);
mt76x0e_stop_hw(dev);
}
static void
mt76x0e_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
u32 queues, bool drop)
{
}
static const struct ieee80211_ops mt76x0e_ops = {
.add_chanctx = ieee80211_emulate_add_chanctx,
.remove_chanctx = ieee80211_emulate_remove_chanctx,
.change_chanctx = ieee80211_emulate_change_chanctx,
.switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx,
.tx = mt76x02_tx,
.start = mt76x0e_start,
.stop = mt76x0e_stop,
.add_interface = mt76x02_add_interface,
.remove_interface = mt76x02_remove_interface,
.config = mt76x0_config,
.configure_filter = mt76x02_configure_filter,
.bss_info_changed = mt76x02_bss_info_changed,
.sta_state = mt76_sta_state,
.sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
.set_key = mt76x02_set_key,
.conf_tx = mt76x02_conf_tx,
.sw_scan_start = mt76_sw_scan,
.sw_scan_complete = mt76x02_sw_scan_complete,
.ampdu_action = mt76x02_ampdu_action,
.sta_rate_tbl_update = mt76x02_sta_rate_tbl_update,
.wake_tx_queue = mt76_wake_tx_queue,
.get_survey = mt76_get_survey,
.get_txpower = mt76_get_txpower,
.flush = mt76x0e_flush,
.set_tim = mt76_set_tim,
.release_buffered_frames = mt76_release_buffered_frames,
.set_coverage_class = mt76x02_set_coverage_class,
.set_rts_threshold = mt76x02_set_rts_threshold,
.get_antenna = mt76_get_antenna,
.reconfig_complete = mt76x02_reconfig_complete,
.set_sar_specs = mt76x0_set_sar_specs,
};
static int mt76x0e_init_hardware(struct mt76x02_dev *dev, bool resume)
{
int err;
mt76x0_chip_onoff(dev, true, false);
if (!mt76x02_wait_for_mac(&dev->mt76))
return -ETIMEDOUT;
mt76x02_dma_disable(dev);
err = mt76x0e_mcu_init(dev);
if (err < 0)
return err;
if (!resume) {
err = mt76x02_dma_init(dev);
if (err < 0)
return err;
}
err = mt76x0_init_hardware(dev);
if (err < 0)
return err;
mt76x02e_init_beacon_config(dev);
if (mt76_chip(&dev->mt76) == 0x7610) {
u16 val;
mt76_clear(dev, MT_COEXCFG0, BIT(0));
val = mt76x02_eeprom_get(dev, MT_EE_NIC_CONF_0);
if (!(val & MT_EE_NIC_CONF_0_PA_IO_CURRENT))
mt76_set(dev, MT_XO_CTRL7, 0xc03);
}
mt76_clear(dev, 0x110, BIT(9));
mt76_set(dev, MT_MAX_LEN_CFG, BIT(13));
return 0;
}
static int mt76x0e_register_device(struct mt76x02_dev *dev)
{
int err;
err = mt76x0e_init_hardware(dev, false);
if (err < 0)
return err;
err = mt76x0_register_device(dev);
if (err < 0)
return err;
set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
return 0;
}
static int
mt76x0e_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
static const struct mt76_driver_ops drv_ops = {
.txwi_size = sizeof(struct mt76x02_txwi),
.drv_flags = MT_DRV_TX_ALIGNED4_SKBS |
MT_DRV_SW_RX_AIRTIME,
.survey_flags = SURVEY_INFO_TIME_TX,
.update_survey = mt76x02_update_channel,
.tx_prepare_skb = mt76x02_tx_prepare_skb,
.tx_complete_skb = mt76x02_tx_complete_skb,
.rx_skb = mt76x02_queue_rx_skb,
.rx_poll_complete = mt76x02_rx_poll_complete,
.sta_ps = mt76x02_sta_ps,
.sta_add = mt76x02_sta_add,
.sta_remove = mt76x02_sta_remove,
};
struct mt76x02_dev *dev;
struct mt76_dev *mdev;
int ret;
ret = pcim_enable_device(pdev);
if (ret)
return ret;
ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev));
if (ret)
return ret;
pci_set_master(pdev);
ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
if (ret)
return ret;
mt76_pci_disable_aspm(pdev);
mdev = mt76_alloc_device(&pdev->dev, sizeof(*dev), &mt76x0e_ops,
&drv_ops);
if (!mdev)
return -ENOMEM;
dev = container_of(mdev, struct mt76x02_dev, mt76);
mutex_init(&dev->phy_mutex);
mt76_mmio_init(mdev, pcim_iomap_table(pdev)[0]);
mdev->rev = mt76_rr(dev, MT_ASIC_VERSION);
dev_info(mdev->dev, "ASIC revision: %08x\n", mdev->rev);
mt76_wr(dev, MT_INT_MASK_CSR, 0);
ret = devm_request_irq(mdev->dev, pdev->irq, mt76x02_irq_handler,
IRQF_SHARED, KBUILD_MODNAME, dev);
if (ret)
goto error;
ret = mt76x0e_register_device(dev);
if (ret < 0)
goto error;
return 0;
error:
mt76_free_device(&dev->mt76);
return ret;
}
static void mt76x0e_cleanup(struct mt76x02_dev *dev)
{
clear_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
tasklet_disable(&dev->mt76.pre_tbtt_tasklet);
mt76x0_chip_onoff(dev, false, false);
mt76x0e_stop_hw(dev);
mt76_dma_cleanup(&dev->mt76);
mt76x02_mcu_cleanup(dev);
}
static void
mt76x0e_remove(struct pci_dev *pdev)
{
struct mt76_dev *mdev = pci_get_drvdata(pdev);
struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76);
mt76_unregister_device(mdev);
mt76x0e_cleanup(dev);
mt76_free_device(mdev);
}
#ifdef CONFIG_PM
static int mt76x0e_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct mt76_dev *mdev = pci_get_drvdata(pdev);
struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76);
int i;
mt76_worker_disable(&mdev->tx_worker);
for (i = 0; i < ARRAY_SIZE(mdev->phy.q_tx); i++)
mt76_queue_tx_cleanup(dev, mdev->phy.q_tx[i], true);
for (i = 0; i < ARRAY_SIZE(mdev->q_mcu); i++)
mt76_queue_tx_cleanup(dev, mdev->q_mcu[i], true);
napi_disable(&mdev->tx_napi);
mt76_for_each_q_rx(mdev, i)
napi_disable(&mdev->napi[i]);
mt76x02_dma_disable(dev);
mt76x02_mcu_cleanup(dev);
mt76x0_chip_onoff(dev, false, false);
pci_enable_wake(pdev, pci_choose_state(pdev, state), true);
pci_save_state(pdev);
return pci_set_power_state(pdev, pci_choose_state(pdev, state));
}
static int mt76x0e_resume(struct pci_dev *pdev)
{
struct mt76_dev *mdev = pci_get_drvdata(pdev);
struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76);
int err, i;
err = pci_set_power_state(pdev, PCI_D0);
if (err)
return err;
pci_restore_state(pdev);
mt76_worker_enable(&mdev->tx_worker);
local_bh_disable();
mt76_for_each_q_rx(mdev, i) {
mt76_queue_rx_reset(dev, i);
napi_enable(&mdev->napi[i]);
napi_schedule(&mdev->napi[i]);
}
napi_enable(&mdev->tx_napi);
napi_schedule(&mdev->tx_napi);
local_bh_enable();
return mt76x0e_init_hardware(dev, true);
}
#endif /* CONFIG_PM */
static const struct pci_device_id mt76x0e_device_table[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7610) },
{ PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7630) },
{ PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7650) },
{ },
};
MODULE_DEVICE_TABLE(pci, mt76x0e_device_table);
MODULE_FIRMWARE(MT7610E_FIRMWARE);
MODULE_FIRMWARE(MT7650E_FIRMWARE);
MODULE_DESCRIPTION("MediaTek MT76x0E (PCIe) wireless driver");
MODULE_LICENSE("Dual BSD/GPL");
static struct pci_driver mt76x0e_driver = {
.name = KBUILD_MODNAME,
.id_table = mt76x0e_device_table,
.probe = mt76x0e_probe,
.remove = mt76x0e_remove,
#ifdef CONFIG_PM
.suspend = mt76x0e_suspend,
.resume = mt76x0e_resume,
#endif /* CONFIG_PM */
};
module_pci_driver(mt76x0e_driver);
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