Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6

* 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (172 commits)
  USB: Add support for SuperSpeed isoc endpoints
  xhci: Clean up cycle bit math used during stalls.
  xhci: Fix cycle bit calculation during stall handling.
  xhci: Update internal dequeue pointers after stalls.
  USB: Disable auto-suspend for USB 3.0 hubs.
  USB: Remove bogus USB_PORT_STAT_SUPER_SPEED symbol.
  xhci: Return canceled URBs immediately when host is halted.
  xhci: Fixes for suspend/resume of shared HCDs.
  xhci: Fix re-init on power loss after resume.
  xhci: Make roothub functions deal with device removal.
  xhci: Limit roothub ports to 15 USB3 & 31 USB2 ports.
  xhci: Return a USB 3.0 hub descriptor for USB3 roothub.
  xhci: Register second xHCI roothub.
  xhci: Change xhci_find_slot_id_by_port() API.
  xhci: Refactor bus suspend state into a struct.
  xhci: Index with a port array instead of PORTSC addresses.
  USB: Set usb_hcd->state and flags for shared roothubs.
  usb: Make core allocate resources per PCI-device.
  usb: Store bus type in usb_hcd, not in driver flags.
  usb: Change usb_hcd->bandwidth_mutex to a pointer.
  ...

12 files changed, 125 insertions, 24 deletions

diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h
index 61b9609e55f2..a4bd05b7bd22 100644
--- a/include/linux/i2c/twl.h
+++ b/include/linux/i2c/twl.h
@@ -600,6 +600,8 @@ struct twl4030_usb_data {
         int             (*phy_power)(struct device *dev, int iD, int on);
         /* enable/disable  phy clocks */
         int             (*phy_set_clock)(struct device *dev, int on);
+        /* suspend/resume of phy */
+        int             (*phy_suspend)(struct device *dev, int suspend);
 };
 
 struct twl4030_ins {
diff --git a/include/linux/platform_data/tegra_usb.h b/include/linux/platform_data/tegra_usb.h
new file mode 100644
index 000000000000..6bca5b569acb
--- /dev/null
+++ b/include/linux/platform_data/tegra_usb.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2010 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ *
+ */
+
+#ifndef _TEGRA_USB_H_
+#define _TEGRA_USB_H_
+
+enum tegra_usb_operating_modes {
+        TEGRA_USB_DEVICE,
+        TEGRA_USB_HOST,
+        TEGRA_USB_OTG,
+};
+
+struct tegra_ehci_platform_data {
+        enum tegra_usb_operating_modes operating_mode;
+        /* power down the phy on bus suspend */
+        int power_down_on_bus_suspend;
+        void *phy_config;
+};
+
+#endif /* _TEGRA_USB_H_ */
diff --git a/include/linux/usb.h b/include/linux/usb.h
index bd69b65f3356..e63efeb378e3 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -976,6 +976,7 @@ extern int usb_disabled(void);
 #define URB_SETUP_MAP_SINGLE    0x00100000      /* Setup packet DMA mapped */
 #define URB_SETUP_MAP_LOCAL     0x00200000      /* HCD-local setup packet */
 #define URB_DMA_SG_COMBINED     0x00400000      /* S-G entries were combined */
+#define URB_ALIGNED_TEMP_BUFFER 0x00800000      /* Temp buffer was alloc'd */
 
 struct usb_iso_packet_descriptor {
         unsigned int offset;
diff --git a/include/linux/usb/Kbuild b/include/linux/usb/Kbuild
index 51410e0200cf..ed91fb62674b 100644
--- a/include/linux/usb/Kbuild
+++ b/include/linux/usb/Kbuild
@@ -2,6 +2,7 @@ header-y += audio.h
 header-y += cdc.h
 header-y += ch9.h
 header-y += ch11.h
+header-y += functionfs.h
 header-y += gadgetfs.h
 header-y += midi.h
 header-y += g_printer.h
diff --git a/include/linux/usb/ch11.h b/include/linux/usb/ch11.h
index 10ec0699bea4..4ebaf0824179 100644
--- a/include/linux/usb/ch11.h
+++ b/include/linux/usb/ch11.h
@@ -26,6 +26,7 @@
 #define HUB_RESET_TT            9
 #define HUB_GET_TT_STATE        10
 #define HUB_STOP_TT             11
+#define HUB_SET_DEPTH           12
 
 /*
  * Hub class additional requests defined by USB 3.0 spec
@@ -61,6 +62,12 @@
 #define USB_PORT_FEAT_TEST              21
 #define USB_PORT_FEAT_INDICATOR         22
 #define USB_PORT_FEAT_C_PORT_L1         23
+#define USB_PORT_FEAT_C_PORT_LINK_STATE 25
+#define USB_PORT_FEAT_C_PORT_CONFIG_ERROR 26
+#define USB_PORT_FEAT_PORT_REMOTE_WAKE_MASK 27
+#define USB_PORT_FEAT_BH_PORT_RESET     28
+#define USB_PORT_FEAT_C_BH_PORT_RESET   29
+#define USB_PORT_FEAT_FORCE_LINKPM_ACCEPT 30
 
 /*
  * Port feature selectors added by USB 3.0 spec.
@@ -102,7 +109,6 @@ struct usb_port_status {
 #define USB_PORT_STAT_TEST              0x0800
 #define USB_PORT_STAT_INDICATOR         0x1000
 /* bits 13 to 15 are reserved */
-#define USB_PORT_STAT_SUPER_SPEED       0x8000  /* Linux-internal */
 
 /*
  * Additions to wPortStatus bit field from USB 3.0
@@ -110,8 +116,14 @@ struct usb_port_status {
  */
 #define USB_PORT_STAT_LINK_STATE        0x01e0
 #define USB_SS_PORT_STAT_POWER          0x0200
+#define USB_SS_PORT_STAT_SPEED          0x1c00
 #define USB_PORT_STAT_SPEED_5GBPS       0x0000
 /* Valid only if port is enabled */
+/* Bits that are the same from USB 2.0 */
+#define USB_SS_PORT_STAT_MASK (USB_PORT_STAT_CONNECTION |           \
+                                USB_PORT_STAT_ENABLE |      \
+                                USB_PORT_STAT_OVERCURRENT | \
+                                USB_PORT_STAT_RESET)
 
 /*
  * Definitions for PORT_LINK_STATE values
@@ -132,8 +144,8 @@ struct usb_port_status {
 
 /*
  * wPortChange bit field
- * See USB 2.0 spec Table 11-22
- * Bits 0 to 4 shown, bits 5 to 15 are reserved
+ * See USB 2.0 spec Table 11-22 and USB 2.0 LPM ECN Table-4.10
+ * Bits 0 to 5 shown, bits 6 to 15 are reserved
  */
 #define USB_PORT_STAT_C_CONNECTION      0x0001
 #define USB_PORT_STAT_C_ENABLE          0x0002
@@ -141,6 +153,13 @@ struct usb_port_status {
 #define USB_PORT_STAT_C_OVERCURRENT     0x0008
 #define USB_PORT_STAT_C_RESET           0x0010
 #define USB_PORT_STAT_C_L1              0x0020
+/*
+ * USB 3.0 wPortChange bit fields
+ * See USB 3.0 spec Table 10-11
+ */
+#define USB_PORT_STAT_C_BH_RESET        0x0020
+#define USB_PORT_STAT_C_LINK_STATE      0x0040
+#define USB_PORT_STAT_C_CONFIG_ERROR    0x0080
 
 /*
  * wHubCharacteristics (masks)
@@ -175,7 +194,9 @@ struct usb_hub_status {
  */
 
 #define USB_DT_HUB                      (USB_TYPE_CLASS | 0x09)
+#define USB_DT_SS_HUB                   (USB_TYPE_CLASS | 0x0a)
 #define USB_DT_HUB_NONVAR_SIZE          7
+#define USB_DT_SS_HUB_SIZE              12
 
 struct usb_hub_descriptor {
         __u8  bDescLength;
@@ -184,11 +205,22 @@ struct usb_hub_descriptor {
         __le16 wHubCharacteristics;
         __u8  bPwrOn2PwrGood;
         __u8  bHubContrCurrent;
-                /* add 1 bit for hub status change; round to bytes */
-        __u8  DeviceRemovable[(USB_MAXCHILDREN + 1 + 7) / 8];
-        __u8  PortPwrCtrlMask[(USB_MAXCHILDREN + 1 + 7) / 8];
-} __attribute__ ((packed));
 
+        /* 2.0 and 3.0 hubs differ here */
+        union {
+                struct {
+                        /* add 1 bit for hub status change; round to bytes */
+                        __u8  DeviceRemovable[(USB_MAXCHILDREN + 1 + 7) / 8];
+                        __u8  PortPwrCtrlMask[(USB_MAXCHILDREN + 1 + 7) / 8];
+                }  __attribute__ ((packed)) hs;
+
+                struct {
+                        __u8 bHubHdrDecLat;
+                        __u16 wHubDelay;
+                        __u16 DeviceRemovable;
+                }  __attribute__ ((packed)) ss;
+        } u;
+} __attribute__ ((packed));
 
 /* port indicator status selectors, tables 11-7 and 11-25 */
 #define HUB_LED_AUTO    0
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index ab461948b579..b72f305ce6bd 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -584,7 +584,9 @@ struct usb_ss_ep_comp_descriptor {
 
 #define USB_DT_SS_EP_COMP_SIZE          6
 /* Bits 4:0 of bmAttributes if this is a bulk endpoint */
-#define USB_SS_MAX_STREAMS(p)           (1 << (p & 0x1f))
+#define USB_SS_MAX_STREAMS(p)           (1 << ((p) & 0x1f))
+/* Bits 1:0 of bmAttributes if this is an isoc endpoint */
+#define USB_SS_MULT(p)                  (1 + ((p) & 0x3))
 
 /*-------------------------------------------------------------------------*/
 
diff --git a/include/linux/usb/ehci_def.h b/include/linux/usb/ehci_def.h
index 2e262cb15425..656380245198 100644
--- a/include/linux/usb/ehci_def.h
+++ b/include/linux/usb/ehci_def.h
@@ -127,7 +127,9 @@ struct ehci_regs {
 #define PORT_WKDISC_E   (1<<21)         /* wake on disconnect (enable) */
 #define PORT_WKCONN_E   (1<<20)         /* wake on connect (enable) */
 /* 19:16 for port testing */
-#define PORT_TEST_PKT   (0x4<<16)       /* Port Test Control - packet test */
+#define PORT_TEST(x)    (((x)&0xf)<<16) /* Port Test Control */
+#define PORT_TEST_PKT   PORT_TEST(0x4)  /* Port Test Control - packet test */
+#define PORT_TEST_FORCE PORT_TEST(0x5)  /* Port Test Control - force enable */
 #define PORT_LED_OFF    (0<<14)
 #define PORT_LED_AMBER  (1<<14)
 #define PORT_LED_GREEN  (2<<14)
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index a854fe89484e..0097136ba45d 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -76,6 +76,10 @@ struct usb_hcd {
         struct kref             kref;           /* reference counter */
 
         const char              *product_desc;  /* product/vendor string */
+        int                     speed;          /* Speed for this roothub.
+                                                 * May be different from
+                                                 * hcd->driver->flags & HCD_MASK
+                                                 */
         char                    irq_descr[24];  /* driver + bus # */
 
         struct timer_list       rh_timer;       /* drives root-hub polling */
@@ -99,6 +103,8 @@ struct usb_hcd {
 #define HCD_FLAG_POLL_RH                2       /* poll for rh status? */
 #define HCD_FLAG_POLL_PENDING           3       /* status has changed? */
 #define HCD_FLAG_WAKEUP_PENDING         4       /* root hub is resuming? */
+#define HCD_FLAG_RH_RUNNING             5       /* root hub is running? */
+#define HCD_FLAG_DEAD                   6       /* controller has died? */
 
         /* The flags can be tested using these macros; they are likely to
          * be slightly faster than test_bit().
@@ -108,6 +114,8 @@ struct usb_hcd {
 #define HCD_POLL_RH(hcd)        ((hcd)->flags & (1U << HCD_FLAG_POLL_RH))
 #define HCD_POLL_PENDING(hcd)   ((hcd)->flags & (1U << HCD_FLAG_POLL_PENDING))
 #define HCD_WAKEUP_PENDING(hcd) ((hcd)->flags & (1U << HCD_FLAG_WAKEUP_PENDING))
+#define HCD_RH_RUNNING(hcd)     ((hcd)->flags & (1U << HCD_FLAG_RH_RUNNING))
+#define HCD_DEAD(hcd)           ((hcd)->flags & (1U << HCD_FLAG_DEAD))
 
         /* Flags that get set only during HCD registration or removal. */
         unsigned                rh_registered:1;/* is root hub registered? */
@@ -138,7 +146,9 @@ struct usb_hcd {
          * bandwidth_mutex should be dropped after a successful control message
          * to the device, or resetting the bandwidth after a failed attempt.
          */
-        struct mutex            bandwidth_mutex;
+        struct mutex            *bandwidth_mutex;
+        struct usb_hcd          *shared_hcd;
+        struct usb_hcd          *primary_hcd;
 
 
 #define HCD_BUFFER_POOLS        4
@@ -201,6 +211,7 @@ struct hc_driver {
         int     flags;
 #define HCD_MEMORY      0x0001          /* HC regs use memory (else I/O) */
 #define HCD_LOCAL_MEM   0x0002          /* HC needs local memory */
+#define HCD_SHARED      0x0004          /* Two (or more) usb_hcds share HW */
 #define HCD_USB11       0x0010          /* USB 1.1 */
 #define HCD_USB2        0x0020          /* USB 2.0 */
 #define HCD_USB3        0x0040          /* USB 3.0 */
@@ -234,6 +245,19 @@ struct hc_driver {
         int     (*urb_dequeue)(struct usb_hcd *hcd,
                                 struct urb *urb, int status);
 
+        /*
+         * (optional) these hooks allow an HCD to override the default DMA
+         * mapping and unmapping routines.  In general, they shouldn't be
+         * necessary unless the host controller has special DMA requirements,
+         * such as alignment contraints.  If these are not specified, the
+         * general usb_hcd_(un)?map_urb_for_dma functions will be used instead
+         * (and it may be a good idea to call these functions in your HCD
+         * implementation)
+         */
+        int     (*map_urb_for_dma)(struct usb_hcd *hcd, struct urb *urb,
+                                   gfp_t mem_flags);
+        void    (*unmap_urb_for_dma)(struct usb_hcd *hcd, struct urb *urb);
+
         /* hw synch, freeing endpoint resources that urb_dequeue can't */
         void    (*endpoint_disable)(struct usb_hcd *hcd,
                         struct usb_host_endpoint *ep);
@@ -330,8 +354,10 @@ extern int usb_hcd_submit_urb(struct urb *urb, gfp_t mem_flags);
 extern int usb_hcd_unlink_urb(struct urb *urb, int status);
 extern void usb_hcd_giveback_urb(struct usb_hcd *hcd, struct urb *urb,
                 int status);
-extern void unmap_urb_setup_for_dma(struct usb_hcd *, struct urb *);
-extern void unmap_urb_for_dma(struct usb_hcd *, struct urb *);
+extern int usb_hcd_map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb,
+                gfp_t mem_flags);
+extern void usb_hcd_unmap_urb_setup_for_dma(struct usb_hcd *, struct urb *);
+extern void usb_hcd_unmap_urb_for_dma(struct usb_hcd *, struct urb *);
 extern void usb_hcd_flush_endpoint(struct usb_device *udev,
                 struct usb_host_endpoint *ep);
 extern void usb_hcd_disable_endpoint(struct usb_device *udev,
@@ -347,8 +373,12 @@ extern int usb_hcd_get_frame_number(struct usb_device *udev);
 
 extern struct usb_hcd *usb_create_hcd(const struct hc_driver *driver,
                 struct device *dev, const char *bus_name);
+extern struct usb_hcd *usb_create_shared_hcd(const struct hc_driver *driver,
+                struct device *dev, const char *bus_name,
+                struct usb_hcd *shared_hcd);
 extern struct usb_hcd *usb_get_hcd(struct usb_hcd *hcd);
 extern void usb_put_hcd(struct usb_hcd *hcd);
+extern int usb_hcd_is_primary_hcd(struct usb_hcd *hcd);
 extern int usb_add_hcd(struct usb_hcd *hcd,
                 unsigned int irqnum, unsigned long irqflags);
 extern void usb_remove_hcd(struct usb_hcd *hcd);
@@ -622,13 +652,6 @@ static inline void usbmon_urb_complete(struct usb_bus *bus, struct urb *urb,
 
 /*-------------------------------------------------------------------------*/
 
-/* hub.h ... DeviceRemovable in 2.4.2-ac11, gone in 2.4.10 */
-/* bleech -- resurfaced in 2.4.11 or 2.4.12 */
-#define bitmap  DeviceRemovable
-
-
-/*-------------------------------------------------------------------------*/
-
 /* random stuff */
 
 #define RUN_CONTEXT (in_irq() ? "in_irq" \
diff --git a/include/linux/usb/msm_hsusb.h b/include/linux/usb/msm_hsusb.h
index 3675e03b1539..3657403eac18 100644
--- a/include/linux/usb/msm_hsusb.h
+++ b/include/linux/usb/msm_hsusb.h
@@ -55,7 +55,7 @@ enum otg_control_type {
 
 /**
  * struct msm_otg_platform_data - platform device data
- *              for msm72k_otg driver.
+ *              for msm_otg driver.
  * @phy_init_seq: PHY configuration sequence. val, reg pairs
  *              terminated by -1.
  * @vbus_power: VBUS power on/off routine.
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
index a1a1e7a73ec9..6e40718f5abe 100644
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -66,6 +66,7 @@ struct otg_transceiver {
 
         u8                      default_a;
         enum usb_otg_state      state;
+        enum usb_xceiv_events   last_event;
 
         struct usb_bus          *host;
         struct usb_gadget       *gadget;
@@ -74,7 +75,7 @@ struct otg_transceiver {
         void __iomem                    *io_priv;
 
         /* for notification of usb_xceiv_events */
-        struct blocking_notifier_head   notifier;
+        struct atomic_notifier_head     notifier;
 
         /* to pass extra port status to the root hub */
         u16                     port_status;
@@ -234,13 +235,13 @@ otg_start_srp(struct otg_transceiver *otg)
 static inline int
 otg_register_notifier(struct otg_transceiver *otg, struct notifier_block *nb)
 {
-        return blocking_notifier_chain_register(&otg->notifier, nb);
+        return atomic_notifier_chain_register(&otg->notifier, nb);
 }
 
 static inline void
 otg_unregister_notifier(struct otg_transceiver *otg, struct notifier_block *nb)
 {
-        blocking_notifier_chain_unregister(&otg->notifier, nb);
+        atomic_notifier_chain_unregister(&otg->notifier, nb);
 }
 
 /* for OTG controller drivers (and maybe other stuff) */
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index c9049139a7a5..45f3b9db4258 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -191,7 +191,8 @@ static inline void usb_set_serial_data(struct usb_serial *serial, void *data)
  * @id_table: pointer to a list of usb_device_id structures that define all
  *      of the devices this structure can support.
  * @num_ports: the number of different ports this device will have.
- * @bulk_in_size: bytes to allocate for bulk-in buffer (0 = end-point size)
+ * @bulk_in_size: minimum number of bytes to allocate for bulk-in buffer
+ *      (0 = end-point size)
  * @bulk_out_size: bytes to allocate for bulk-out buffer (0 = end-point size)
  * @calc_num_ports: pointer to a function to determine how many ports this
  *      device has dynamically.  It will be called after the probe()
diff --git a/include/linux/usb/ulpi.h b/include/linux/usb/ulpi.h
index 82b1507f4735..9595796d62ed 100644
--- a/include/linux/usb/ulpi.h
+++ b/include/linux/usb/ulpi.h
@@ -184,4 +184,9 @@
 struct otg_transceiver *otg_ulpi_create(struct otg_io_access_ops *ops,
                                         unsigned int flags);
 
+#ifdef CONFIG_USB_ULPI_VIEWPORT
+/* access ops for controllers with a viewport register */
+extern struct otg_io_access_ops ulpi_viewport_access_ops;
+#endif
+
 #endif /* __LINUX_USB_ULPI_H */