diff options
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt76x2/pci.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt76x2/pci.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/pci.c b/drivers/net/wireless/mediatek/mt76/mt76x2/pci.c new file mode 100644 index 0000000..cf611d1 --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/mt76x2/pci.c @@ -0,0 +1,116 @@ +// 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 "mt76x2.h" + +static const struct pci_device_id mt76pci_device_table[] = { + { PCI_DEVICE(0x14c3, 0x7662) }, + { PCI_DEVICE(0x14c3, 0x7612) }, + { PCI_DEVICE(0x14c3, 0x7602) }, + { }, +}; + +static int +mt76pci_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), + .tx_aligned4_skbs = true, + .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 = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); + if (ret) + return ret; + + mdev = mt76_alloc_device(&pdev->dev, sizeof(*dev), &mt76x2_ops, + &drv_ops); + if (!mdev) + return -ENOMEM; + + dev = container_of(mdev, struct mt76x02_dev, mt76); + mt76_mmio_init(mdev, pcim_iomap_table(pdev)[0]); + mt76x2_reset_wlan(dev, false); + + mdev->rev = mt76_rr(dev, MT_ASIC_VERSION); + dev_info(mdev->dev, "ASIC revision: %08x\n", mdev->rev); + + ret = devm_request_irq(mdev->dev, pdev->irq, mt76x02_irq_handler, + IRQF_SHARED, KBUILD_MODNAME, dev); + if (ret) + goto error; + + ret = mt76x2_register_device(dev); + if (ret) + goto error; + + /* Fix up ASPM configuration */ + + /* RG_SSUSB_G1_CDR_BIR_LTR = 0x9 */ + mt76_rmw_field(dev, 0x15a10, 0x1f << 16, 0x9); + + /* RG_SSUSB_G1_CDR_BIC_LTR = 0xf */ + mt76_rmw_field(dev, 0x15a0c, 0xf << 28, 0xf); + + /* RG_SSUSB_CDR_BR_PE1D = 0x3 */ + mt76_rmw_field(dev, 0x15c58, 0x3 << 6, 0x3); + + mt76_pci_disable_aspm(pdev); + + return 0; + +error: + ieee80211_free_hw(mt76_hw(dev)); + return ret; +} + +static void +mt76pci_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); + mt76x2_cleanup(dev); + mt76_free_device(mdev); +} + +MODULE_DEVICE_TABLE(pci, mt76pci_device_table); +MODULE_FIRMWARE(MT7662_FIRMWARE); +MODULE_FIRMWARE(MT7662_ROM_PATCH); +MODULE_LICENSE("Dual BSD/GPL"); + +static struct pci_driver mt76pci_driver = { + .name = KBUILD_MODNAME, + .id_table = mt76pci_device_table, + .probe = mt76pci_probe, + .remove = mt76pci_remove, +}; + +module_pci_driver(mt76pci_driver); |