This patch is to create driver/usb/core/(port.c,hub.h) files and move usb
port related code into port.c.
Signed-off-by: Lan Tianyu <tianyu.lan@xxxxxxxxx>
---
drivers/usb/core/Makefile | 1 +
drivers/usb/core/hub.c | 107 +--------------------------------------------
drivers/usb/core/hub.h | 97 ++++++++++++++++++++++++++++++++++++++++
drivers/usb/core/port.c | 66 ++++++++++++++++++++++++++++
4 files changed, 165 insertions(+), 106 deletions(-)
create mode 100644 drivers/usb/core/hub.h
create mode 100644 drivers/usb/core/port.c
diff --git a/drivers/usb/core/Makefile b/drivers/usb/core/Makefile
index 26059b9..5e847ad 100644
--- a/drivers/usb/core/Makefile
+++ b/drivers/usb/core/Makefile
@@ -7,6 +7,7 @@ ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG
usbcore-y := usb.o hub.o hcd.o urb.o message.o driver.o
usbcore-y += config.o file.o buffer.o sysfs.o endpoint.o
usbcore-y += devio.o notify.o generic.o quirks.o devices.o
+usbcore-y += port.o
usbcore-$(CONFIG_PCI) += hcd-pci.o
usbcore-$(CONFIG_ACPI) += usb-acpi.o
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index a815fd2..25b5218 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -30,7 +30,7 @@
#include <asm/uaccess.h>
#include <asm/byteorder.h>
-#include "usb.h"
+#include "hub.h"
/* if we are in debug mode, always announce new devices */
#ifdef DEBUG
@@ -42,62 +42,6 @@
#define USB_VENDOR_GENESYS_LOGIC 0x05e3
#define HUB_QUIRK_CHECK_PORT_AUTOSUSPEND 0x01
-struct usb_port {
- struct usb_device *child;
- struct device dev;
- struct dev_state *port_owner;
- enum usb_port_connect_type connect_type;
-};
-
-struct usb_hub {
- struct device *intfdev; /* the "interface" device */
- struct usb_device *hdev;
- struct kref kref;
- struct urb *urb; /* for interrupt polling pipe */
-
- /* buffer for urb ... with extra space in case of babble */
- char (*buffer)[8];
- union {
- struct usb_hub_status hub;
- struct usb_port_status port;
- } *status; /* buffer for status reports */
- struct mutex status_mutex; /* for the status buffer */
-
- int error; /* last reported error */
- int nerrors; /* track consecutive errors */
-
- struct list_head event_list; /* hubs w/data or errs ready */
- unsigned long event_bits[1]; /* status change bitmask */
- unsigned long change_bits[1]; /* ports with logical connect
- status change */
- unsigned long busy_bits[1]; /* ports being reset or
- resumed */
- unsigned long removed_bits[1]; /* ports with a "removed"
- device present */
- unsigned long wakeup_bits[1]; /* ports that have signaled
- remote wakeup */
-#if USB_MAXCHILDREN > 31 /* 8*sizeof(unsigned long) - 1 */
-#error event_bits[] is too short!
-#endif
-
- struct usb_hub_descriptor *descriptor; /* class descriptor */
- struct usb_tt tt; /* Transaction Translator */
-
- unsigned mA_per_port; /* current for each child */
-
- unsigned limited_power:1;
- unsigned quiescing:1;
- unsigned disconnected:1;
-
- unsigned quirk_check_port_auto_suspend:1;
-
- unsigned has_indicators:1;
- u8 indicator[USB_MAXCHILDREN];
- struct delayed_work leds;
- struct delayed_work init_work;
- struct usb_port **ports;
-};
-
static inline int hub_is_superspeed(struct usb_device *hdev)
{
return (hdev->descriptor.bDeviceProtocol == USB_HUB_PR_SS);
@@ -168,9 +112,6 @@ EXPORT_SYMBOL_GPL(ehci_cf_port_reset_rwsem);
#define HUB_DEBOUNCE_STEP 25
#define HUB_DEBOUNCE_STABLE 100
-#define to_usb_port(_dev) \
- container_of(_dev, struct usb_port, dev)
-
static int usb_reset_and_verify_device(struct usb_device *udev);
static inline char *portspeed(struct usb_hub *hub, int portstatus)
@@ -1235,52 +1176,6 @@ static int hub_post_reset(struct usb_interface *intf)
return 0;
}
-static void usb_port_device_release(struct device *dev)
-{
- struct usb_port *port_dev = to_usb_port(dev);
-
- kfree(port_dev);
-}
-
-static void usb_hub_remove_port_device(struct usb_hub *hub,
- int port1)
-{
- device_unregister(&hub->ports[port1 - 1]->dev);
-}
-
-struct device_type usb_port_device_type = {
- .name = "usb_port",
- .release = usb_port_device_release,
-};
-
-static int usb_hub_create_port_device(struct usb_hub *hub,
- int port1)
-{
- struct usb_port *port_dev = NULL;
- int retval;
-
- port_dev = kzalloc(sizeof(*port_dev), GFP_KERNEL);
- if (!port_dev) {
- retval = -ENOMEM;
- goto exit;
- }
-
- hub->ports[port1 - 1] = port_dev;
- port_dev->dev.parent = hub->intfdev;
- port_dev->dev.type = &usb_port_device_type;
- dev_set_name(&port_dev->dev, "port%d", port1);
-
- retval = device_register(&port_dev->dev);
- if (retval)
- goto error_register;
- return 0;
-
-error_register:
- put_device(&port_dev->dev);
-exit:
- return retval;
-}
-
static int hub_configure(struct usb_hub *hub,
struct usb_endpoint_descriptor *endpoint)
{
diff --git a/drivers/usb/core/hub.h b/drivers/usb/core/hub.h
new file mode 100644
index 0000000..d16a7c9
--- /dev/null
+++ b/drivers/usb/core/hub.h
@@ -0,0 +1,97 @@
+/*
+ * usb hub driver head file
+ *
+ * Copyright (C) 1999 Linus Torvalds
+ * Copyright (C) 1999 Johannes Erdfelt
+ * Copyright (C) 1999 Gregory P. Smith
+ * Copyright (C) 2001 Brad Hards (bhards@xxxxxxxxxxxxxx)
+ * Copyright (C) 2012 Intel Corp (tianyu.lan@xxxxxxxxx)
+ *
+ * move struct usb_hub to this file.
+ *
+ * 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/usb.h>
+#include <linux/usb/ch11.h>
+#include <linux/usb/hcd.h>
+#include "usb.h"
+
+struct usb_hub {
+ struct device *intfdev; /* the "interface" device */
+ struct usb_device *hdev;
+ struct kref kref;
+ struct urb *urb; /* for interrupt polling pipe */
+
+ /* buffer for urb ... with extra space in case of babble */
+ char (*buffer)[8];
+ union {
+ struct usb_hub_status hub;
+ struct usb_port_status port;
+ } *status; /* buffer for status reports */
+ struct mutex status_mutex; /* for the status buffer */
+
+ int error; /* last reported error */
+ int nerrors; /* track consecutive errors */
+
+ struct list_head event_list; /* hubs w/data or errs ready */
+ unsigned long event_bits[1]; /* status change bitmask */
+ unsigned long change_bits[1]; /* ports with logical connect
+ status change */
+ unsigned long busy_bits[1]; /* ports being reset or
+ resumed */
+ unsigned long removed_bits[1]; /* ports with a "removed"
+ device present */
+ unsigned long wakeup_bits[1]; /* ports that have signaled
+ remote wakeup */
+#if USB_MAXCHILDREN > 31 /* 8*sizeof(unsigned long) - 1 */
+#error event_bits[] is too short!
+#endif
+
+ struct usb_hub_descriptor *descriptor; /* class descriptor */
+ struct usb_tt tt; /* Transaction Translator */
+
+ unsigned mA_per_port; /* current for each child */
+
+ unsigned limited_power:1;
+ unsigned quiescing:1;
+ unsigned disconnected:1;
+
+ unsigned quirk_check_port_auto_suspend:1;
+
+ unsigned has_indicators:1;
+ u8 indicator[USB_MAXCHILDREN];
+ struct delayed_work leds;
+ struct delayed_work init_work;
+ struct usb_port **ports;
+};
+
+/**
+ * struct usb port - kernel's representation of a usb port
+ * @child: usb device attatched to the port
+ * @dev: generic device interface
+ * @port_owner: port's owner
+ * @connect_type: port's connect type
+ */
+struct usb_port {
+ struct usb_device *child;
+ struct device dev;
+ struct dev_state *port_owner;
+ enum usb_port_connect_type connect_type;
+};
+
+#define to_usb_port(_dev) \
+ container_of(_dev, struct usb_port, dev)
+
+extern int usb_hub_create_port_device(struct usb_hub *hub,
+ int port1);
+extern void usb_hub_remove_port_device(struct usb_hub *hub,
+ int port1);
+
diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c
new file mode 100644
index 0000000..2bc1cef
--- /dev/null
+++ b/drivers/usb/core/port.c
@@ -0,0 +1,66 @@
+/*
+ * usb port device code
+ *
+ * Copyright (C) 2012 Intel Corp
+ *
+ * Author: Lan Tianyu <tianyu.lan@xxxxxxxxx>
+ *
+ * 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 "hub.h"
+
+static void usb_port_device_release(struct device *dev)
+{
+ struct usb_port *port_dev = to_usb_port(dev);
+
+ kfree(port_dev);
+}
+
+struct device_type usb_port_device_type = {
+ .name = "usb_port",
+ .release = usb_port_device_release,
+};
+
+int usb_hub_create_port_device(struct usb_hub *hub, int port1)
+{
+ struct usb_port *port_dev = NULL;
+ int retval;
+
+ port_dev = kzalloc(sizeof(*port_dev), GFP_KERNEL);
+ if (!port_dev) {
+ retval = -ENOMEM;
+ goto exit;
+ }
+
+ hub->ports[port1 - 1] = port_dev;
+ port_dev->dev.parent = hub->intfdev;
+ port_dev->dev.type = &usb_port_device_type;
+ dev_set_name(&port_dev->dev, "port%d", port1);
+
+ retval = device_register(&port_dev->dev);
+ if (retval)
+ goto error_register;
+
+ return 0;
+
+error_register:
+ put_device(&port_dev->dev);
+exit:
+ return retval;
+}
+
+void usb_hub_remove_port_device(struct usb_hub *hub,
+ int port1)
+{
+ device_unregister(&hub->ports[port1 - 1]->dev);
+}
+
--
1.7.9.5
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