branch Attitude Adjustment

git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@33625 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 228 insertions, 0 deletions

diff --git a/target/linux/adm5120/files/drivers/usb/host/adm5120-drv.c b/target/linux/adm5120/files/drivers/usb/host/adm5120-drv.c
new file mode 100644
index 000000000..99ea9d530
--- /dev/null
+++ b/target/linux/adm5120/files/drivers/usb/host/adm5120-drv.c
@@ -0,0 +1,228 @@
+/*
+ * ADM5120 HCD (Host Controller Driver) for USB
+ *
+ * Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This file was derived from: drivers/usb/host/ohci-au1xxx.c
+ *   (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
+ *   (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
+ *   (C) Copyright 2002 Hewlett-Packard Company
+ *
+ *   Written by Christopher Hoover <ch@hpl.hp.com>
+ *   Based on fragments of previous driver by Russell King et al.
+ *
+ *   Modified for LH7A404 from ahcd-sa1111.c
+ *    by Durgesh Pattamatta <pattamattad@sharpsec.com>
+ *   Modified for AMD Alchemy Au1xxx
+ *    by Matt Porter <mporter@kernel.crashing.org>
+ *
+ *  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/signal.h>
+
+#include <asm/bootinfo.h>
+#include <asm/mach-adm5120/adm5120_defs.h>
+
+#ifdef DEBUG
+#define HCD_DBG(f, a...)	printk(KERN_DEBUG "%s: " f, hcd_name, ## a)
+#else
+#define HCD_DBG(f, a...)	do {} while (0)
+#endif
+#define HCD_ERR(f, a...)	printk(KERN_ERR "%s: " f, hcd_name, ## a)
+#define HCD_INFO(f, a...)	printk(KERN_INFO "%s: " f, hcd_name, ## a)
+
+/*-------------------------------------------------------------------------*/
+
+static int admhc_adm5120_probe(const struct hc_driver *driver,
+		  struct platform_device *dev)
+{
+	int retval;
+	struct usb_hcd *hcd;
+	int irq;
+	struct resource *regs;
+
+	/* sanity checks */
+	regs = platform_get_resource(dev, IORESOURCE_MEM, 0);
+	if (!regs) {
+		HCD_DBG("no IOMEM resource found\n");
+		return -ENODEV;
+	}
+
+	irq = platform_get_irq(dev, 0);
+	if (irq < 0) {
+		HCD_DBG("no IRQ resource found\n");
+		return -ENODEV;
+	}
+
+	hcd = usb_create_hcd(driver, &dev->dev, "ADM5120");
+	if (!hcd)
+		return -ENOMEM;
+
+	hcd->rsrc_start = regs->start;
+	hcd->rsrc_len = regs->end - regs->start + 1;
+
+	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
+		HCD_DBG("request_mem_region failed\n");
+		retval = -EBUSY;
+		goto err_dev;
+	}
+
+	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+	if (!hcd->regs) {
+		HCD_DBG("ioremap failed\n");
+		retval = -ENOMEM;
+		goto err_mem;
+	}
+
+	admhc_hcd_init(hcd_to_admhcd(hcd));
+
+	retval = usb_add_hcd(hcd, irq, 0);
+	if (retval)
+		goto err_io;
+
+	return 0;
+
+err_io:
+	iounmap(hcd->regs);
+err_mem:
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+err_dev:
+	usb_put_hcd(hcd);
+	return retval;
+}
+
+
+/* may be called without controller electrically present */
+/* may be called with controller, bus, and devices active */
+
+static void admhc_adm5120_remove(struct usb_hcd *hcd,
+		struct platform_device *dev)
+{
+	usb_remove_hcd(hcd);
+	iounmap(hcd->regs);
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+	usb_put_hcd(hcd);
+}
+
+static int __devinit admhc_adm5120_start(struct usb_hcd *hcd)
+{
+	struct admhcd	*ahcd = hcd_to_admhcd(hcd);
+	int		ret;
+
+	ret = admhc_init(ahcd);
+	if (ret < 0) {
+		HCD_ERR("unable to init %s\n", hcd->self.bus_name);
+		goto err;
+	}
+
+	ret = admhc_run(ahcd);
+	if (ret < 0) {
+		HCD_ERR("unable to run %s\n", hcd->self.bus_name);
+		goto err_stop;
+	}
+
+	return 0;
+
+err_stop:
+	admhc_stop(hcd);
+err:
+	return ret;
+}
+
+static const struct hc_driver adm5120_hc_driver = {
+	.description =		hcd_name,
+	.product_desc =		"ADM5120 built-in USB 1.1 Host Controller",
+	.hcd_priv_size =	sizeof(struct admhcd),
+
+	/*
+	 * generic hardware linkage
+	 */
+	.irq =			admhc_irq,
+	.flags =		HCD_USB11 | HCD_MEMORY,
+
+	/*
+	 * basic lifecycle operations
+	 */
+	.start =		admhc_adm5120_start,
+	.stop =			admhc_stop,
+	.shutdown =		admhc_shutdown,
+
+	/*
+	 * managing i/o requests and associated device resources
+	 */
+	.urb_enqueue =		admhc_urb_enqueue,
+	.urb_dequeue =		admhc_urb_dequeue,
+	.endpoint_disable =	admhc_endpoint_disable,
+
+	/*
+	 * scheduling support
+	 */
+	.get_frame_number =	admhc_get_frame_number,
+
+	/*
+	 * root hub support
+	 */
+	.hub_status_data =	admhc_hub_status_data,
+	.hub_control =		admhc_hub_control,
+#ifdef CONFIG_PM
+	.bus_suspend =		admhc_bus_suspend,
+	.bus_resume =		admhc_bus_resume,
+#endif
+	.start_port_reset =	admhc_start_port_reset,
+};
+
+static int usb_hcd_adm5120_probe(struct platform_device *pdev)
+{
+	int ret;
+
+	ret = admhc_adm5120_probe(&adm5120_hc_driver, pdev);
+
+	return ret;
+}
+
+static int usb_hcd_adm5120_remove(struct platform_device *pdev)
+{
+	struct usb_hcd *hcd = platform_get_drvdata(pdev);
+
+	admhc_adm5120_remove(hcd, pdev);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+/* TODO */
+static int usb_hcd_adm5120_suspend(struct platform_device *dev)
+{
+	struct usb_hcd *hcd = platform_get_drvdata(dev);
+
+	return 0;
+}
+
+static int usb_hcd_adm5120_resume(struct platform_device *dev)
+{
+	struct usb_hcd *hcd = platform_get_drvdata(dev);
+
+	return 0;
+}
+#else
+#define usb_hcd_adm5120_suspend	NULL
+#define usb_hcd_adm5120_resume	NULL
+#endif /* CONFIG_PM */
+
+static struct platform_driver usb_hcd_adm5120_driver = {
+	.probe		= usb_hcd_adm5120_probe,
+	.remove		= usb_hcd_adm5120_remove,
+	.shutdown	= usb_hcd_platform_shutdown,
+	.suspend	= usb_hcd_adm5120_suspend,
+	.resume		= usb_hcd_adm5120_resume,
+	.driver		= {
+		.name	= "adm5120-hcd",
+		.owner	= THIS_MODULE,
+	},
+};
+