diff options
| -rw-r--r-- | drivers/usb/core/Makefile | 1 | ||||
| -rw-r--r-- | drivers/usb/core/hub.c | 107 | ||||
| -rw-r--r-- | drivers/usb/core/hub.h | 97 | ||||
| -rw-r--r-- | drivers/usb/core/port.c | 66 |
4 files changed, 165 insertions, 106 deletions
diff --git a/drivers/usb/core/Makefile b/drivers/usb/core/Makefile index 26059b93dbf..5e847ad2f58 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 dc6ebd1d88d..f6ff1302f34 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) @@ -1294,52 +1235,6 @@ 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 00000000000..d16a7c98aea --- /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@bigpond.net.au) + * Copyright (C) 2012 Intel Corp (tianyu.lan@intel.com) + * + * 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 00000000000..2bc1cef4e47 --- /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@intel.com> + * + * 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); +} + |