--- /dev/null
+/*
+ * pci.c - DesignWare HS OTG Controller PCI driver
+ *
+ * Copyright (C) 2004-2013 Synopsys, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The names of the above-listed copyright holders may not be used
+ * to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * Provides the initialization and cleanup entry points for the DWC_otg PCI
+ * driver
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/usb.h>
+
+#include <linux/usb/hcd.h>
+#include <linux/usb/ch11.h>
+#include <linux/platform_device.h>
+#include <linux/usb/usb_phy_generic.h>
+
+#define PCI_PRODUCT_ID_HAPS_HSOTG 0xabc0
+
+static const char dwc2_driver_name[] = "dwc2-pci";
+
+struct dwc2_pci_glue {
+ struct platform_device *dwc2;
+ struct platform_device *phy;
+};
+
+static void dwc2_pci_remove(struct pci_dev *pci)
+{
+ struct dwc2_pci_glue *glue = pci_get_drvdata(pci);
+
+ platform_device_unregister(glue->dwc2);
+ usb_phy_generic_unregister(glue->phy);
+ kfree(glue);
+ pci_set_drvdata(pci, NULL);
+}
+
+static int dwc2_pci_probe(struct pci_dev *pci,
+ const struct pci_device_id *id)
+{
+ struct resource res[2];
+ struct platform_device *dwc2;
+ struct platform_device *phy;
+ int ret;
+ struct device *dev = &pci->dev;
+ struct dwc2_pci_glue *glue;
+
+ ret = pcim_enable_device(pci);
+ if (ret) {
+ dev_err(dev, "failed to enable pci device\n");
+ return -ENODEV;
+ }
+
+ pci_set_master(pci);
+
+ dwc2 = platform_device_alloc("dwc2", PLATFORM_DEVID_AUTO);
+ if (!dwc2) {
+ dev_err(dev, "couldn't allocate dwc2 device\n");
+ return -ENOMEM;
+ }
+
+ memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
+
+ res[0].start = pci_resource_start(pci, 0);
+ res[0].end = pci_resource_end(pci, 0);
+ res[0].name = "dwc2";
+ res[0].flags = IORESOURCE_MEM;
+
+ res[1].start = pci->irq;
+ res[1].name = "dwc2";
+ res[1].flags = IORESOURCE_IRQ;
+
+ ret = platform_device_add_resources(dwc2, res, ARRAY_SIZE(res));
+ if (ret) {
+ dev_err(dev, "couldn't add resources to dwc2 device\n");
+ return ret;
+ }
+
+ dwc2->dev.parent = dev;
+
+ phy = usb_phy_generic_register();
+ if (IS_ERR(phy)) {
+ dev_err(dev, "error registering generic PHY (%ld)\n",
+ PTR_ERR(phy));
+ return PTR_ERR(phy);
+ }
+
+ ret = platform_device_add(dwc2);
+ if (ret) {
+ dev_err(dev, "failed to register dwc2 device\n");
+ goto err;
+ }
+
+ glue = kzalloc(sizeof(*glue), GFP_KERNEL);
+ if (!glue)
+ return -ENOMEM;
+
+ glue->phy = phy;
+ glue->dwc2 = dwc2;
+ pci_set_drvdata(pci, glue);
+
+ return 0;
+err:
+ usb_phy_generic_unregister(phy);
+ platform_device_put(dwc2);
+ return ret;
+}
+
+static const struct pci_device_id dwc2_pci_ids[] = {
+ {
+ PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, PCI_PRODUCT_ID_HAPS_HSOTG),
+ },
+ {
+ PCI_DEVICE(PCI_VENDOR_ID_STMICRO,
+ PCI_DEVICE_ID_STMICRO_USB_OTG),
+ },
+ { /* end: all zeroes */ }
+};
+MODULE_DEVICE_TABLE(pci, dwc2_pci_ids);
+
+static struct pci_driver dwc2_pci_driver = {
+ .name = dwc2_driver_name,
+ .id_table = dwc2_pci_ids,
+ .probe = dwc2_pci_probe,
+ .remove = dwc2_pci_remove,
+};
+
+module_pci_driver(dwc2_pci_driver);
+
+MODULE_DESCRIPTION("DESIGNWARE HS OTG PCI Bus Glue");
+MODULE_AUTHOR("Synopsys, Inc.");
+MODULE_LICENSE("Dual BSD/GPL");
Code Review / kvmfornfv.git / blobdiff