Initial import

Signed-off-by: Felix Fietkau <[email protected]>
2026-10-24 13:26:48 +00:00 · 2014-11-20 21:21:19 +01:00
commit 9e7049b1d1
25 changed files with 6823 additions and 0 deletions
@@ -0,0 +1,135 @@
+/*
+ * Copyright (C) 2014 Felix Fietkau <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+
+#include "mt76.h"
+#include "trace.h"
+
+static const struct pci_device_id mt76pci_device_table[] = {
+	{ PCI_DEVICE(0x14c3, 0x7662) },
+};
+
+u32 mt76_rr(struct mt76_dev *dev, u32 offset)
+{
+	u32 val;
+
+	val = ioread32(dev->regs + offset);
+	trace_reg_read(dev, offset, val);
+
+	return val;
+}
+
+void mt76_wr(struct mt76_dev *dev, u32 offset, u32 val)
+{
+	trace_reg_write(dev, offset, val);
+	iowrite32(val, dev->regs + offset);
+}
+
+u32 mt76_rmw(struct mt76_dev *dev, u32 offset, u32 mask, u32 val)
+{
+	val |= mt76_rr(dev, offset) & ~mask;
+	mt76_wr(dev, offset, val);
+	return val;
+}
+
+void mt76_wr_copy(struct mt76_dev *dev, u32 offset, const void *data, int len)
+{
+	__iowrite32_copy(dev->regs + offset, data, len >> 2);
+}
+
+static int
+mt76pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+	struct mt76_dev *dev;
+	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;
+
+	dev = mt76_alloc_device(&pdev->dev);
+	if (!dev)
+		return -ENOMEM;
+
+	dev->regs = pcim_iomap_table(pdev)[0];
+
+	pci_set_drvdata(pdev, dev);
+
+	dev->rev = mt76_rr(dev, MT_ASIC_VERSION);
+	printk("ASIC revision: %08x\n", dev->rev);
+
+	ret = devm_request_irq(dev->dev, pdev->irq, mt76_irq_handler,
+			       IRQF_SHARED, KBUILD_MODNAME, dev);
+	if (ret)
+		goto error;
+
+	ret = mt76_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);
+
+	printk("pci device driver attached\n");
+	return 0;
+
+error:
+	ieee80211_free_hw(dev->hw);
+	return ret;
+}
+
+static void
+mt76pci_remove(struct pci_dev *pdev)
+{
+	struct mt76_dev *dev = pci_get_drvdata(pdev);
+
+	ieee80211_unregister_hw(dev->hw);
+	mt76_cleanup(dev);
+	ieee80211_free_hw(dev->hw);
+	printk("pci device driver detached\n");
+}
+
+MODULE_DEVICE_TABLE(pci, mt76pci_device_table);
+MODULE_FIRMWARE(MT7662_FIRMWARE);
+MODULE_FIRMWARE(MT7662_ROM_PATCH);
+MODULE_LICENSE("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);