drivers/net/wireless/mediatek/mt76/mt7603/pci.c

   1 // SPDX-License-Identifier: ISC
   2
   3 #include <linux/kernel.h>
   4 #include <linux/module.h>
   5 #include <linux/pci.h>
   6
   7 #include "mt7603.h"
   8
   9 static const struct pci_device_id mt76pci_device_table[] = {
  10         { PCI_DEVICE(0x14c3, 0x7603) },
  11         { },
  12 };
  13
  14 static int
  15 mt76pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
  16 {
  17         struct mt7603_dev *dev;
  18         struct mt76_dev *mdev;
  19         int ret;
  20
  21         ret = pcim_enable_device(pdev);
  22         if (ret)
  23                 return ret;
  24
  25         ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev));
  26         if (ret)
  27                 return ret;
  28
  29         pci_set_master(pdev);
  30
  31         ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
  32         if (ret)
  33                 return ret;
  34
  35         mdev = mt76_alloc_device(&pdev->dev, sizeof(*dev), &mt7603_ops,
  36                                  &mt7603_drv_ops);
  37         if (!mdev)
  38                 return -ENOMEM;
  39
  40         dev = container_of(mdev, struct mt7603_dev, mt76);
  41         mt76_mmio_init(mdev, pcim_iomap_table(pdev)[0]);
  42
  43         mdev->rev = (mt76_rr(dev, MT_HW_CHIPID) << 16) |
  44                     (mt76_rr(dev, MT_HW_REV) & 0xff);
  45         dev_info(mdev->dev, "ASIC revision: %04x\n", mdev->rev);
  46
  47         mt76_wr(dev, MT_INT_MASK_CSR, 0);
  48
  49         ret = devm_request_irq(mdev->dev, pdev->irq, mt7603_irq_handler,
  50                                IRQF_SHARED, KBUILD_MODNAME, dev);
  51         if (ret)
  52                 goto error;
  53
  54         ret = mt7603_register_device(dev);
  55         if (ret)
  56                 goto error;
  57
  58         return 0;
  59 error:
  60         mt76_free_device(&dev->mt76);
  61
  62         return ret;
  63 }
  64
  65 static void
  66 mt76pci_remove(struct pci_dev *pdev)
  67 {
  68         struct mt76_dev *mdev = pci_get_drvdata(pdev);
  69         struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);
  70
  71         mt7603_unregister_device(dev);
  72 }
  73
  74 MODULE_DEVICE_TABLE(pci, mt76pci_device_table);
  75 MODULE_FIRMWARE(MT7603_FIRMWARE_E1);
  76 MODULE_FIRMWARE(MT7603_FIRMWARE_E2);
  77
  78 struct pci_driver mt7603_pci_driver = {
  79         .name           = KBUILD_MODNAME,
  80         .id_table       = mt76pci_device_table,
  81         .probe          = mt76pci_probe,
  82         .remove         = mt76pci_remove,
  83 };