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path: root/drivers/usb/chipidea/ci13xxx_pci.c
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Diffstat (limited to 'drivers/usb/chipidea/ci13xxx_pci.c')
-rw-r--r--drivers/usb/chipidea/ci13xxx_pci.c180
1 files changed, 180 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/ci13xxx_pci.c b/drivers/usb/chipidea/ci13xxx_pci.c
new file mode 100644
index 00000000000..e3dab27f5c7
--- /dev/null
+++ b/drivers/usb/chipidea/ci13xxx_pci.c
@@ -0,0 +1,180 @@
+/*
+ * 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
+ *****************************************************************************/
+struct ci13xxx_udc_driver pci_driver = {
+ .name = UDC_DRIVER_NAME,
+ .capoffset = DEF_CAPOFFSET,
+};
+
+struct ci13xxx_udc_driver langwell_pci_driver = {
+ .name = UDC_DRIVER_NAME,
+ .capoffset = 0,
+};
+
+struct ci13xxx_udc_driver penwell_pci_driver = {
+ .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 __devinit ci13xxx_pci_probe(struct pci_dev *pdev,
+ const struct pci_device_id *id)
+{
+ struct ci13xxx_udc_driver *driver = (void *)id->driver_data;
+ struct platform_device *plat_ci;
+ struct resource res[3];
+ int retval = 0, nres = 2;
+
+ if (!driver) {
+ 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);
+
+ plat_ci = platform_device_alloc("ci_hdrc", -1);
+ if (!plat_ci) {
+ dev_err(&pdev->dev, "can't allocate ci_hdrc platform device\n");
+ retval = -ENOMEM;
+ goto disable_device;
+ }
+
+ 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;
+
+ retval = platform_device_add_resources(plat_ci, res, nres);
+ if (retval) {
+ dev_err(&pdev->dev, "can't add resources to platform device\n");
+ goto put_platform;
+ }
+
+ retval = platform_device_add_data(plat_ci, driver, sizeof(*driver));
+ if (retval)
+ goto put_platform;
+
+ dma_set_coherent_mask(&plat_ci->dev, pdev->dev.coherent_dma_mask);
+ plat_ci->dev.dma_mask = pdev->dev.dma_mask;
+ plat_ci->dev.dma_parms = pdev->dev.dma_parms;
+ plat_ci->dev.parent = &pdev->dev;
+
+ pci_set_drvdata(pdev, plat_ci);
+
+ retval = platform_device_add(plat_ci);
+ if (retval)
+ goto put_platform;
+
+ return 0;
+
+ put_platform:
+ pci_set_drvdata(pdev, NULL);
+ platform_device_put(plat_ci);
+ 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 __devexit ci13xxx_pci_remove(struct pci_dev *pdev)
+{
+ struct platform_device *plat_ci = pci_get_drvdata(pdev);
+
+ platform_device_unregister(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_driver,
+ },
+ {
+ PCI_DEVICE(0x153F, 0x1006),
+ .driver_data = (kernel_ulong_t)&pci_driver,
+ },
+ {
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0811),
+ .driver_data = (kernel_ulong_t)&langwell_pci_driver,
+ },
+ {
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0829),
+ .driver_data = (kernel_ulong_t)&penwell_pci_driver,
+ },
+ { 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 = __devexit_p(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");