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// SPDX-License-Identifier: ISC
/* Copyright (C) 2019 MediaTek Inc.
*
* Author: Ryder Lee <ryder.lee@mediatek.com>
* Felix Fietkau <nbd@nbd.name>
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include "mt7615.h"
static const struct pci_device_id mt7615_pci_device_table[] = {
{ PCI_DEVICE(0x14c3, 0x7615) },
{ PCI_DEVICE(0x14c3, 0x7663) },
{ PCI_DEVICE(0x14c3, 0x7611) },
{ },
};
static int mt7615_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
const u32 *map;
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 = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES);
if (ret < 0)
return ret;
ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (ret)
goto error;
mt76_pci_disable_aspm(pdev);
map = id->device == 0x7663 ? mt7663e_reg_map : mt7615e_reg_map;
ret = mt7615_mmio_probe(&pdev->dev, pcim_iomap_table(pdev)[0],
pdev->irq, map);
if (ret)
goto error;
return 0;
error:
pci_free_irq_vectors(pdev);
return ret;
}
static void mt7615_pci_remove(struct pci_dev *pdev)
{
struct mt76_dev *mdev = pci_get_drvdata(pdev);
struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
mt7615_unregister_device(dev);
devm_free_irq(&pdev->dev, pdev->irq, dev);
pci_free_irq_vectors(pdev);
}
#ifdef CONFIG_PM
static int mt7615_pci_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct mt76_dev *mdev = pci_get_drvdata(pdev);
struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
bool hif_suspend;
int i, err;
hif_suspend = !test_bit(MT76_STATE_SUSPEND, &dev->mphy.state) &&
mt7615_firmware_offload(dev);
if (hif_suspend) {
err = mt7615_mcu_set_hif_suspend(dev, true);
if (err)
return err;
}
napi_disable(&mdev->tx_napi);
tasklet_kill(&mdev->tx_tasklet);
mt76_for_each_q_rx(mdev, i) {
napi_disable(&mdev->napi[i]);
}
tasklet_kill(&dev->irq_tasklet);
mt7615_dma_reset(dev);
err = mt7615_wait_pdma_busy(dev);
if (err)
goto restore;
if (is_mt7663(mdev)) {
mt76_set(dev, MT_PDMA_SLP_PROT, MT_PDMA_AXI_SLPPROT_ENABLE);
if (!mt76_poll_msec(dev, MT_PDMA_SLP_PROT,
MT_PDMA_AXI_SLPPROT_RDY,
MT_PDMA_AXI_SLPPROT_RDY, 1000)) {
dev_err(mdev->dev, "PDMA sleep protection failed\n");
err = -EIO;
goto restore;
}
}
pci_enable_wake(pdev, pci_choose_state(pdev, state), true);
pci_save_state(pdev);
err = pci_set_power_state(pdev, pci_choose_state(pdev, state));
if (err)
goto restore;
err = mt7615_firmware_own(dev);
if (err)
goto restore;
return 0;
restore:
mt76_for_each_q_rx(mdev, i) {
napi_enable(&mdev->napi[i]);
}
napi_enable(&mdev->tx_napi);
if (hif_suspend)
mt7615_mcu_set_hif_suspend(dev, false);
return err;
}
static int mt7615_pci_resume(struct pci_dev *pdev)
{
struct mt76_dev *mdev = pci_get_drvdata(pdev);
struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
bool pdma_reset;
int i, err;
err = mt7615_driver_own(dev);
if (err < 0)
return err;
err = pci_set_power_state(pdev, PCI_D0);
if (err)
return err;
pci_restore_state(pdev);
if (is_mt7663(&dev->mt76)) {
mt76_clear(dev, MT_PDMA_SLP_PROT, MT_PDMA_AXI_SLPPROT_ENABLE);
mt76_wr(dev, MT_PCIE_IRQ_ENABLE, 1);
}
pdma_reset = !mt76_rr(dev, MT_WPDMA_TX_RING0_CTRL0) &&
!mt76_rr(dev, MT_WPDMA_TX_RING0_CTRL1);
if (pdma_reset)
dev_err(mdev->dev, "PDMA engine must be reinitialized\n");
mt76_for_each_q_rx(mdev, i) {
napi_enable(&mdev->napi[i]);
napi_schedule(&mdev->napi[i]);
}
napi_enable(&mdev->tx_napi);
napi_schedule(&mdev->tx_napi);
if (!test_bit(MT76_STATE_SUSPEND, &dev->mphy.state) &&
mt7615_firmware_offload(dev))
err = mt7615_mcu_set_hif_suspend(dev, false);
return err;
}
#endif /* CONFIG_PM */
struct pci_driver mt7615_pci_driver = {
.name = KBUILD_MODNAME,
.id_table = mt7615_pci_device_table,
.probe = mt7615_pci_probe,
.remove = mt7615_pci_remove,
#ifdef CONFIG_PM
.suspend = mt7615_pci_suspend,
.resume = mt7615_pci_resume,
#endif /* CONFIG_PM */
};
MODULE_DEVICE_TABLE(pci, mt7615_pci_device_table);
MODULE_FIRMWARE(MT7615_FIRMWARE_CR4);
MODULE_FIRMWARE(MT7615_FIRMWARE_N9);
MODULE_FIRMWARE(MT7615_ROM_PATCH);
MODULE_FIRMWARE(MT7663_OFFLOAD_FIRMWARE_N9);
MODULE_FIRMWARE(MT7663_OFFLOAD_ROM_PATCH);
MODULE_FIRMWARE(MT7663_FIRMWARE_N9);
MODULE_FIRMWARE(MT7663_ROM_PATCH);
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