Initial file dump from open source releaseHEADmaster

1 files changed, 158 insertions, 0 deletions

diff --git a/drivers/usb/chipidea/ci13xxx_pci.c b/drivers/usb/chipidea/ci13xxx_pci.c
new file mode 100644
index 00000000..4e1fc61b
--- /dev/null
+++ b/drivers/usb/chipidea/ci13xxx_pci.c
@@ -0,0 +1,158 @@
+/*
+ * ci13xxx_pci.c - MIPS USB IP core family device controller
+ *
+ * Copyright (C) 2008 Chipidea - MIPS Technologies, Inc. All rights reserved.
+ *
+ * Author: David Lopo
+ *
+ * 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.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/usb/gadget.h>
+#include <linux/usb/chipidea.h>
+
+/* driver name */
+#define UDC_DRIVER_NAME   "ci13xxx_pci"
+
+/******************************************************************************
+ * PCI block
+ *****************************************************************************/
+static struct ci13xxx_platform_data pci_platdata = {
+	.name		= UDC_DRIVER_NAME,
+	.capoffset	= DEF_CAPOFFSET,
+};
+
+static struct ci13xxx_platform_data langwell_pci_platdata = {
+	.name		= UDC_DRIVER_NAME,
+	.capoffset	= 0,
+};
+
+static struct ci13xxx_platform_data penwell_pci_platdata = {
+	.name		= UDC_DRIVER_NAME,
+	.capoffset	= 0,
+	.power_budget	= 200,
+};
+
+/**
+ * ci13xxx_pci_probe: PCI probe
+ * @pdev: USB device controller being probed
+ * @id:   PCI hotplug ID connecting controller to UDC framework
+ *
+ * This function returns an error code
+ * Allocates basic PCI resources for this USB device controller, and then
+ * invokes the udc_probe() method to start the UDC associated with it
+ */
+static int ci13xxx_pci_probe(struct pci_dev *pdev,
+				       const struct pci_device_id *id)
+{
+	struct ci13xxx_platform_data *platdata = (void *)id->driver_data;
+	struct platform_device *plat_ci;
+	struct resource res[3];
+	int retval = 0, nres = 2;
+
+	if (!platdata) {
+		dev_err(&pdev->dev, "device doesn't provide driver data\n");
+		return -ENODEV;
+	}
+
+	retval = pci_enable_device(pdev);
+	if (retval)
+		goto done;
+
+	if (!pdev->irq) {
+		dev_err(&pdev->dev, "No IRQ, check BIOS/PCI setup!");
+		retval = -ENODEV;
+		goto disable_device;
+	}
+
+	pci_set_power_state(pdev, PCI_D0);
+	pci_set_master(pdev);
+	pci_try_set_mwi(pdev);
+
+	memset(res, 0, sizeof(res));
+	res[0].start	= pci_resource_start(pdev, 0);
+	res[0].end	= pci_resource_end(pdev, 0);
+	res[0].flags	= IORESOURCE_MEM;
+	res[1].start	= pdev->irq;
+	res[1].flags	= IORESOURCE_IRQ;
+
+	plat_ci = ci13xxx_add_device(&pdev->dev, res, nres, platdata);
+	if (IS_ERR(plat_ci)) {
+		dev_err(&pdev->dev, "ci13xxx_add_device failed!\n");
+		retval = PTR_ERR(plat_ci);
+		goto disable_device;
+	}
+
+	pci_set_drvdata(pdev, plat_ci);
+
+	return 0;
+
+ disable_device:
+	pci_disable_device(pdev);
+ done:
+	return retval;
+}
+
+/**
+ * ci13xxx_pci_remove: PCI remove
+ * @pdev: USB Device Controller being removed
+ *
+ * Reverses the effect of ci13xxx_pci_probe(),
+ * first invoking the udc_remove() and then releases
+ * all PCI resources allocated for this USB device controller
+ */
+static void ci13xxx_pci_remove(struct pci_dev *pdev)
+{
+	struct platform_device *plat_ci = pci_get_drvdata(pdev);
+
+	ci13xxx_remove_device(plat_ci);
+	pci_set_drvdata(pdev, NULL);
+	pci_disable_device(pdev);
+}
+
+/**
+ * PCI device table
+ * PCI device structure
+ *
+ * Check "pci.h" for details
+ */
+static DEFINE_PCI_DEVICE_TABLE(ci13xxx_pci_id_table) = {
+	{
+		PCI_DEVICE(0x153F, 0x1004),
+		.driver_data = (kernel_ulong_t)&pci_platdata,
+	},
+	{
+		PCI_DEVICE(0x153F, 0x1006),
+		.driver_data = (kernel_ulong_t)&pci_platdata,
+	},
+	{
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0811),
+		.driver_data = (kernel_ulong_t)&langwell_pci_platdata,
+	},
+	{
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0829),
+		.driver_data = (kernel_ulong_t)&penwell_pci_platdata,
+	},
+	{ 0, 0, 0, 0, 0, 0, 0 /* end: all zeroes */ }
+};
+MODULE_DEVICE_TABLE(pci, ci13xxx_pci_id_table);
+
+static struct pci_driver ci13xxx_pci_driver = {
+	.name         =	UDC_DRIVER_NAME,
+	.id_table     =	ci13xxx_pci_id_table,
+	.probe        =	ci13xxx_pci_probe,
+	.remove       =	ci13xxx_pci_remove,
+};
+
+module_pci_driver(ci13xxx_pci_driver);
+
+MODULE_AUTHOR("MIPS - David Lopo <dlopo@chipidea.mips.com>");
+MODULE_DESCRIPTION("MIPS CI13XXX USB Peripheral Controller");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("June 2008");