USB 3.0 hub includes 2 hubs - HS and SS ones.
Thus, when dummy_hcd enabled it will register 2 root hubs (SS and HS).
Signed-off-by: Tatyana Brokhman <tlinder@xxxxxxxxxxxxxx>
---
drivers/usb/gadget/dummy_hcd.c | 739 +++++++++++++++++++++++++++++++++-------
1 files changed, 616 insertions(+), 123 deletions(-)
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index dc65462..d680013 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -5,6 +5,7 @@
*
* Copyright (C) 2003 David Brownell
* Copyright (C) 2003-2005 Alan Stern
+ * Copyright (C) 2010 Code Aurora Forum. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -61,10 +62,13 @@
#define POWER_BUDGET 500 /* in mA; use 8 for low-power port testing */
-static const char driver_name [] = "dummy_hcd";
-static const char driver_desc [] = "USB Host+Gadget Emulator";
+static const char driver_name[] = "dummy_hcd";
+static const char ss_driver_name[] = "ss_dummy_hcd";
+static const char driver_desc[] = "USB Host+Gadget Emulator";
+static const char ss_driver_desc[] = "SS USB Host+Gadget Emulator";
-static const char gadget_name [] = "dummy_udc";
+static const char gadget_name[] = "dummy_udc";
+static const char ss_gadget_name[] = "ss_dummy_udc";
MODULE_DESCRIPTION (DRIVER_DESC);
MODULE_AUTHOR ("David Brownell");
@@ -179,6 +183,8 @@ struct dummy {
u32 old_status;
unsigned resuming:1;
unsigned long re_timeout;
+ /* Address that will be given to the connected device */
+ int devnum;
struct usb_device *udev;
struct list_head urbp_list;
@@ -220,6 +226,7 @@ static inline struct dummy *gadget_dev_to_dummy (struct device *dev)
}
static struct dummy *the_controller;
+static struct dummy *the_ss_controller;
/*-------------------------------------------------------------------------*/
@@ -259,10 +266,80 @@ stop_activity (struct dummy *dum)
/* driver now does any non-usb quiescing necessary */
}
+
+/* caller must hold lock */
+static void
+set_ss_link_state(struct dummy *dum)
+{
+ dum->active = 0;
+ if ((dum->port_status & USB_SS_PORT_STAT_POWER) == 0)
+ dum->port_status = 0;
+
+ /* UDC suspend must cause a disconnect */
+ else if (!dum->pullup || dum->udc_suspended) {
+ dum->port_status &= ~(USB_PORT_STAT_CONNECTION |
+ USB_PORT_STAT_ENABLE);
+ if ((dum->old_status & USB_PORT_STAT_CONNECTION) != 0)
+ dum->port_status |=
+ (USB_PORT_STAT_C_CONNECTION << 16);
+ } else {
+ /* device is connected and not suspended */
+ dum->port_status |= (USB_PORT_STAT_CONNECTION |
+ USB_PORT_STAT_SUPER_SPEED);
+ if ((dum->old_status & USB_PORT_STAT_CONNECTION) == 0)
+ dum->port_status |=
+ (USB_PORT_STAT_C_CONNECTION << 16);
+ if ((dum->port_status & USB_PORT_STAT_ENABLE) == 1 &&
+ (dum->port_status & USB_SS_PORT_LS_U0) == 1 &&
+ dum->rh_state != DUMMY_RH_SUSPENDED)
+ dum->active = 1;
+ }
+
+
+ if ((dum->port_status & USB_PORT_STAT_ENABLE) == 0 ||
+ dum->active)
+ dum->resuming = 0;
+
+ /* if !connected or reset */
+ if ((dum->port_status & USB_PORT_STAT_CONNECTION) == 0 ||
+ (dum->port_status & USB_PORT_STAT_RESET) != 0) {
+ /*
+ * We're connected and not reseted (reset occured now),
+ * and driver attached - disconnect!
+ */
+ if ((dum->old_status & USB_PORT_STAT_CONNECTION) != 0 &&
+ (dum->old_status & USB_PORT_STAT_RESET) == 0 &&
+ dum->driver) {
+ stop_activity(dum);
+ spin_unlock(&dum->lock);
+ dum->driver->disconnect(&dum->gadget);
+ spin_lock(&dum->lock);
+ }
+ } else if (dum->active != dum->old_active) {
+ if (dum->old_active && dum->driver->suspend) {
+ spin_unlock(&dum->lock);
+ dum->driver->suspend(&dum->gadget);
+ spin_lock(&dum->lock);
+ } else if (!dum->old_active &&
+ dum->driver->resume) {
+ spin_unlock(&dum->lock);
+ dum->driver->resume(&dum->gadget);
+ spin_lock(&dum->lock);
+ }
+ }
+
+ dum->old_status = dum->port_status;
+ dum->old_active = dum->active;
+}
+
/* caller must hold lock */
static void
set_link_state (struct dummy *dum)
{
+ if (dum == the_ss_controller) {
+ set_ss_link_state(dum);
+ return;
+ }
dum->active = 0;
if ((dum->port_status & USB_PORT_STAT_POWER) == 0)
dum->port_status = 0;
@@ -343,7 +420,13 @@ dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
dum = ep_to_dummy (ep);
if (!dum->driver || !is_enabled (dum))
return -ESHUTDOWN;
- max = le16_to_cpu(desc->wMaxPacketSize) & 0x3ff;
+ max = le16_to_cpu(desc->wMaxPacketSize) ;
+ /*
+ * For HS/FS devices only bits 0..9 of the wMaxPacketSize represent the
+ * maximum packet size
+ */
+ if (dum->gadget.speed < USB_SPEED_SUPER)
+ max &= 0x3ff;
/* drivers must not request bad settings, since lower levels
* (hardware or its drivers) may not check. some endpoints
@@ -361,6 +444,10 @@ dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
goto done;
}
switch (dum->gadget.speed) {
+ case USB_SPEED_SUPER:
+ if (max == 1024)
+ break;
+ goto done;
case USB_SPEED_HIGH:
if (max == 512)
break;
@@ -379,6 +466,7 @@ dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
goto done;
/* real hardware might not handle all packet sizes */
switch (dum->gadget.speed) {
+ case USB_SPEED_SUPER:
case USB_SPEED_HIGH:
if (max <= 1024)
break;
@@ -399,6 +487,7 @@ dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
goto done;
/* real hardware might not handle all packet sizes */
switch (dum->gadget.speed) {
+ case USB_SPEED_SUPER:
case USB_SPEED_HIGH:
if (max <= 1024)
break;
@@ -710,11 +799,19 @@ static int dummy_pullup (struct usb_gadget *_gadget, int value)
return 0;
}
+void dummy_get_config_params(struct usb_dcd_config_params *params)
+{
+ /* Just for testing so return maximum values */
+ params->bU1devExitLat = 0x0a;
+ params->bU2DevExitLat = 0x7ff;
+}
+
static const struct usb_gadget_ops dummy_ops = {
.get_frame = dummy_g_get_frame,
.wakeup = dummy_wakeup,
.set_selfpowered = dummy_set_selfpowered,
.pullup = dummy_pullup,
+ .get_config_params = dummy_get_config_params
};
/*-------------------------------------------------------------------------*/
@@ -750,16 +847,24 @@ static DEVICE_ATTR (function, S_IRUGO, show_function, NULL);
int
usb_gadget_register_driver (struct usb_gadget_driver *driver)
{
- struct dummy *dum = the_controller;
+ struct dummy *dum;
int retval, i;
+ enum usb_device_speed speed = USB_SPEED_UNKNOWN;
+
+ if (!driver->bind || !driver->setup
+ || driver->speed == USB_SPEED_UNKNOWN)
+ return -EINVAL;
+
+ speed = driver->speed;
+ if (driver->speed == USB_SPEED_SUPER)
+ dum = the_ss_controller;
+ else
+ dum = the_controller;
if (!dum)
return -EINVAL;
if (dum->driver)
return -EBUSY;
- if (!driver->bind || !driver->setup
- || driver->speed == USB_SPEED_UNKNOWN)
- return -EINVAL;
/*
* SLAVE side init ... the layer above hardware, which
@@ -787,7 +892,6 @@ usb_gadget_register_driver (struct usb_gadget_driver *driver)
}
dum->gadget.ep0 = &dum->ep [0].ep;
- dum->ep [0].ep.maxpacket = 64;
list_del_init (&dum->ep [0].ep.ep_list);
INIT_LIST_HEAD(&dum->fifo_req.queue);
@@ -806,6 +910,11 @@ usb_gadget_register_driver (struct usb_gadget_driver *driver)
/* khubd will enumerate this in a while */
spin_lock_irq (&dum->lock);
dum->pullup = 1;
+ dum->gadget.speed = speed;
+ if (speed == USB_SPEED_SUPER)
+ dum->ep[0].ep.maxpacket = 9;
+ else
+ dum->ep[0].ep.maxpacket = 64;
set_link_state (dum);
spin_unlock_irq (&dum->lock);
@@ -817,12 +926,20 @@ EXPORT_SYMBOL (usb_gadget_register_driver);
int
usb_gadget_unregister_driver (struct usb_gadget_driver *driver)
{
- struct dummy *dum = the_controller;
+ struct dummy *dum ;
unsigned long flags;
+ if (!driver || !driver->unbind)
+ return -EINVAL;
+
+ if (driver->speed == USB_SPEED_SUPER)
+ dum = the_ss_controller;
+ else
+ dum = the_controller;
+
if (!dum)
return -ENODEV;
- if (!driver || driver != dum->driver || !driver->unbind)
+ if (driver != dum->driver)
return -EINVAL;
dev_dbg (udc_dev(dum), "unregister gadget driver '%s'\n",
@@ -897,6 +1014,34 @@ static int dummy_udc_probe (struct platform_device *pdev)
return rc;
}
+static int dummy_ss_udc_probe(struct platform_device *pdev)
+{
+ struct dummy *dum = the_ss_controller;
+ int rc;
+
+ dum->gadget.name = gadget_name;
+ dum->gadget.ops = &dummy_ops;
+ dum->gadget.is_dualspeed = 1;
+
+ /* maybe claim OTG support, though we won't complete HNP */
+ dum->gadget.is_otg = (dummy_to_hcd(dum)->self.otg_port != 0);
+
+ dev_set_name(&dum->gadget.dev, "ss_gadget");
+ dum->gadget.dev.parent = &pdev->dev;
+ dum->gadget.dev.release = dummy_gadget_release;
+ rc = device_register(&dum->gadget.dev);
+ if (rc < 0)
+ return rc;
+
+ usb_get_hcd(dummy_to_hcd(dum));
+
+ platform_set_drvdata(pdev, dum);
+ rc = device_create_file(&dum->gadget.dev, &dev_attr_function);
+ if (rc < 0)
+ device_unregister(&dum->gadget.dev);
+ return rc;
+}
+
static int dummy_udc_remove (struct platform_device *pdev)
{
struct dummy *dum = platform_get_drvdata (pdev);
@@ -946,6 +1091,17 @@ static struct platform_driver dummy_udc_driver = {
},
};
+static struct platform_driver dummy_ss_udc_driver = {
+ .probe = dummy_ss_udc_probe,
+ .remove = dummy_udc_remove,
+ .suspend = dummy_udc_suspend,
+ .resume = dummy_udc_resume,
+ .driver = {
+ .name = (char *) ss_gadget_name,
+ .owner = THIS_MODULE,
+ },
+};
+
/*-------------------------------------------------------------------------*/
/* MASTER/HOST SIDE DRIVER
@@ -1195,6 +1351,173 @@ static struct dummy_ep *find_endpoint (struct dummy *dum, u8 address)
#define Ep_Request (USB_TYPE_STANDARD | USB_RECIP_ENDPOINT)
#define Ep_InRequest (Ep_Request | USB_DIR_IN)
+
+/**
+ * This function handles all control transferes
+ *
+ * @param dum - pointer to dummy (the_controller)
+ * @param urb - the urb request to handle
+ * @param status - pointer to request handling status
+ * @param master - pointer to the dummy master this request was
+ * received for
+ */
+static int handle_control_request(struct dummy *dum, struct urb *urb,
+ int *status)
+{
+ struct usb_ctrlrequest setup;
+ struct dummy_ep *ep2;
+ int ret_val = 1;
+ unsigned w_index;
+ unsigned w_value;
+
+ setup = *(struct usb_ctrlrequest *) urb->setup_packet;
+ w_index = le16_to_cpu(setup.wIndex);
+ w_value = le16_to_cpu(setup.wValue);
+ switch (setup.bRequest) {
+ case USB_REQ_SET_ADDRESS:
+ if (setup.bRequestType != Dev_Request)
+ break;
+ dum->address = w_value;
+ *status = 0;
+ dev_dbg(udc_dev(dum), "set_address = %d\n",
+ w_value);
+ ret_val = 0;
+ break;
+ case USB_REQ_SET_FEATURE:
+ if (setup.bRequestType == Dev_Request) {
+ ret_val = 0;
+ switch (w_value) {
+ case USB_DEVICE_REMOTE_WAKEUP:
+ break;
+ case USB_DEVICE_B_HNP_ENABLE:
+ dum->gadget.b_hnp_enable = 1;
+ break;
+ case USB_DEVICE_A_HNP_SUPPORT:
+ dum->gadget.a_hnp_support = 1;
+ break;
+ case USB_DEVICE_A_ALT_HNP_SUPPORT:
+ dum->gadget.a_alt_hnp_support = 1;
+ break;
+ case USB_DEVICE_U1_ENABLE:
+ if (dum->gadget.speed == USB_SPEED_SUPER)
+ w_value = USB_DEV_STAT_U1_ENABLED;
+ else
+ ret_val = -EOPNOTSUPP;
+ break;
+ case USB_DEVICE_U2_ENABLE:
+ if (dum->gadget.speed == USB_SPEED_SUPER)
+ w_value = USB_DEV_STAT_U2_ENABLED;
+ else
+ ret_val = -EOPNOTSUPP;
+ break;
+ case USB_DEVICE_LTM_ENABLE:
+ if (dum->gadget.speed == USB_SPEED_SUPER)
+ w_value = USB_DEV_STAT_LTM_ENABLED;
+ else
+ ret_val = -EOPNOTSUPP;
+ break;
+ default:
+ ret_val = -EOPNOTSUPP;
+ }
+ if (ret_val == 0) {
+ dum->devstatus |= (1 << w_value);
+ *status = 0;
+ }
+ } else if (setup.bRequestType == Ep_Request) {
+ /* endpoint halt */
+ ep2 = find_endpoint(dum, w_index);
+ if (!ep2 || ep2->ep.name == ep0name) {
+ ret_val = -EOPNOTSUPP;
+ break;
+ }
+ ep2->halted = 1;
+ ret_val = 0;
+ *status = 0;
+ }
+ break;
+ case USB_REQ_CLEAR_FEATURE:
+ if (setup.bRequestType == Dev_Request) {
+ ret_val = 0;
+ switch (w_value) {
+ case USB_DEVICE_REMOTE_WAKEUP:
+ w_value = USB_DEVICE_REMOTE_WAKEUP;
+ break;
+ case USB_DEVICE_U1_ENABLE:
+ if (dum->gadget.speed == USB_SPEED_SUPER)
+ w_value = USB_DEV_STAT_U1_ENABLED;
+ else
+ ret_val = -EOPNOTSUPP;
+ break;
+ case USB_DEVICE_U2_ENABLE:
+ if (dum->gadget.speed == USB_SPEED_SUPER)
+ w_value = USB_DEV_STAT_U2_ENABLED;
+ else
+ ret_val = -EOPNOTSUPP;
+ break;
+ case USB_DEVICE_LTM_ENABLE:
+ if (dum->gadget.speed == USB_SPEED_SUPER)
+ w_value = USB_DEV_STAT_LTM_ENABLED;
+ else
+ ret_val = -EOPNOTSUPP;
+ break;
+ default:
+ ret_val = -EOPNOTSUPP;
+ break;
+ }
+ if (ret_val == 0) {
+ dum->devstatus &= ~(1 << w_value);
+ *status = 0;
+ }
+ } else if (setup.bRequestType == Ep_Request) {
+ /* endpoint halt */
+ ep2 = find_endpoint(dum, w_index);
+ if (!ep2) {
+ ret_val = -EOPNOTSUPP;
+ break;
+ }
+ if (!ep2->wedged)
+ ep2->halted = 0;
+ ret_val = 0;
+ *status = 0;
+ }
+ break;
+ case USB_REQ_GET_STATUS:
+ if (setup.bRequestType == Dev_InRequest
+ || setup.bRequestType == Intf_InRequest
+ || setup.bRequestType == Ep_InRequest) {
+ char *buf;
+ /*
+ * device: remote wakeup, selfpowered
+ * interface: nothing
+ * endpoint: halt
+ */
+ buf = (char *)urb->transfer_buffer;
+ if (urb->transfer_buffer_length > 0) {
+ if (setup.bRequestType == Ep_InRequest) {
+ ep2 = find_endpoint(dum, w_index);
+ if (!ep2) {
+ ret_val = -EOPNOTSUPP;
+ break;
+ }
+ buf[0] = ep2->halted;
+ } else if (setup.bRequestType ==
+ Dev_InRequest) {
+ buf[0] = (u8)dum->devstatus;
+ } else
+ buf[0] = 0;
+ }
+ if (urb->transfer_buffer_length > 1)
+ buf[1] = 0;
+ urb->actual_length = min_t(u32, 2,
+ urb->transfer_buffer_length);
+ ret_val = 0;
+ *status = 0;
+ }
+ break;
+ }
+ return ret_val;
+}
+
/* drive both sides of the transfers; looks like irq handlers to
* both drivers except the callbacks aren't in_irq().
*/
@@ -1217,6 +1540,9 @@ static void dummy_timer (unsigned long _dum)
case USB_SPEED_HIGH:
total = 512/*bytes*/ * 13/*packets*/ * 8/*uframes*/;
break;
+ case USB_SPEED_SUPER:
+ total = 1024/*bytes*/ * 13/*packets*/ * 8/*uframes*/;
+ break;
default:
dev_err (dummy_dev(dum), "bogus device speed\n");
return;
@@ -1326,117 +1652,8 @@ restart:
ep->last_io = jiffies;
ep->setup_stage = 0;
ep->halted = 0;
- switch (setup.bRequest) {
- case USB_REQ_SET_ADDRESS:
- if (setup.bRequestType != Dev_Request)
- break;
- dum->address = w_value;
- status = 0;
- dev_dbg (udc_dev(dum), "set_address = %d\n",
- w_value);
- value = 0;
- break;
- case USB_REQ_SET_FEATURE:
- if (setup.bRequestType == Dev_Request) {
- value = 0;
- switch (w_value) {
- case USB_DEVICE_REMOTE_WAKEUP:
- break;
- case USB_DEVICE_B_HNP_ENABLE:
- dum->gadget.b_hnp_enable = 1;
- break;
- case USB_DEVICE_A_HNP_SUPPORT:
- dum->gadget.a_hnp_support = 1;
- break;
- case USB_DEVICE_A_ALT_HNP_SUPPORT:
- dum->gadget.a_alt_hnp_support
- = 1;
- break;
- default:
- value = -EOPNOTSUPP;
- }
- if (value == 0) {
- dum->devstatus |=
- (1 << w_value);
- status = 0;
- }
- } else if (setup.bRequestType == Ep_Request) {
- // endpoint halt
- ep2 = find_endpoint (dum, w_index);
- if (!ep2 || ep2->ep.name == ep0name) {
- value = -EOPNOTSUPP;
- break;
- }
- ep2->halted = 1;
- value = 0;
- status = 0;
- }
- break;
- case USB_REQ_CLEAR_FEATURE:
- if (setup.bRequestType == Dev_Request) {
- switch (w_value) {
- case USB_DEVICE_REMOTE_WAKEUP:
- dum->devstatus &= ~(1 <<
- USB_DEVICE_REMOTE_WAKEUP);
- value = 0;
- status = 0;
- break;
- default:
- value = -EOPNOTSUPP;
- break;
- }
- } else if (setup.bRequestType == Ep_Request) {
- // endpoint halt
- ep2 = find_endpoint (dum, w_index);
- if (!ep2) {
- value = -EOPNOTSUPP;
- break;
- }
- if (!ep2->wedged)
- ep2->halted = 0;
- value = 0;
- status = 0;
- }
- break;
- case USB_REQ_GET_STATUS:
- if (setup.bRequestType == Dev_InRequest
- || setup.bRequestType
- == Intf_InRequest
- || setup.bRequestType
- == Ep_InRequest
- ) {
- char *buf;
-
- // device: remote wakeup, selfpowered
- // interface: nothing
- // endpoint: halt
- buf = (char *)urb->transfer_buffer;
- if (urb->transfer_buffer_length > 0) {
- if (setup.bRequestType ==
- Ep_InRequest) {
- ep2 = find_endpoint (dum, w_index);
- if (!ep2) {
- value = -EOPNOTSUPP;
- break;
- }
- buf [0] = ep2->halted;
- } else if (setup.bRequestType ==
- Dev_InRequest) {
- buf [0] = (u8)
- dum->devstatus;
- } else
- buf [0] = 0;
- }
- if (urb->transfer_buffer_length > 1)
- buf [1] = 0;
- urb->actual_length = min_t(u32, 2,
- urb->transfer_buffer_length);
- value = 0;
- status = 0;
- }
- break;
- }
+ value = handle_control_request(dum, urb, &status);
/* gadget driver handles all other requests. block
* until setup() returns; no reentrancy issues etc.
@@ -1576,7 +1793,141 @@ hub_descriptor (struct usb_hub_descriptor *desc)
desc->bitmap [1] = 0xff;
}
-static int dummy_hub_control (
+/**
+ * This function handles the control requests of the dummy (ss
+ * hub) master. All control requests that are part of the
+ * enumeration are handled by the dummy_timer
+ * Note: this function is used only for the SS root hub
+ *
+ * @return int
+ */
+static int dummy_ss_hub_control(
+ struct usb_hcd *hcd,
+ u16 typeReq,
+ u16 wValue,
+ u16 wIndex,
+ char *buf,
+ u16 wLength
+) {
+ struct dummy *dum;
+ int retval = 0;
+ unsigned long flags;
+
+ if (!HCD_HW_ACCESSIBLE(hcd))
+ return -ETIMEDOUT;
+
+ dum = hcd_to_dummy(hcd);
+ spin_lock_irqsave(&dum->lock, flags);
+ switch (typeReq) {
+ case ClearHubFeature:
+ break;
+ case ClearPortFeature:
+ switch (wValue) {
+ case USB_PORT_FEAT_POWER:
+ if (dum->port_status & USB_SS_PORT_STAT_POWER)
+ dev_dbg(dummy_dev(dum), "power-off\n");
+ /* FALLS THROUGH */
+ default:
+ dum->port_status &= ~(1 << wValue);
+ set_link_state(dum);
+ }
+ break;
+ case GetHubDescriptor:
+ hub_descriptor((struct usb_hub_descriptor *) buf);
+ break;
+ case GetHubStatus:
+ /* We report that no change occured in the hub status
+ * (power and overcurent conditions)
+ */
+ *(__le32 *) buf = cpu_to_le32 (0);
+ break;
+ case GetPortStatus:
+ /* We have only one port */
+ if (wIndex != 1)
+ retval = -EPIPE;
+
+ /* whoever resets or resumes must GetPortStatus to
+ * complete it!!
+ */
+ /* TODO: add support for suspend/resume */
+ if ((dum->port_status & USB_PORT_STAT_RESET) != 0 &&
+ time_after_eq(jiffies, dum->re_timeout)) {
+ dum->port_status |= (USB_PORT_STAT_C_RESET << 16);
+ dum->port_status &= ~USB_PORT_STAT_RESET;
+ }
+ if (dum->pullup)
+ dum->port_status |= USB_PORT_STAT_ENABLE;
+
+ set_link_state(dum);
+
+ ((__le16 *) buf)[0] = cpu_to_le16 (dum->port_status);
+ ((__le16 *) buf)[1] = cpu_to_le16 (dum->port_status >> 16);
+ break;
+ case SetHubFeature:
+ retval = -EPIPE;
+ break;
+ case SetPortFeature:
+ switch (wValue) {
+ case USB_PORT_FEAT_LINK_STATE:
+ /* Since this is dummy we don't have an actual link so
+ * there is nothing to do for the SET_LINK_STATE cmd
+ */
+ break;
+ case USB_PORT_FEAT_U1_TIMEOUT:
+ case USB_PORT_FEAT_U2_TIMEOUT:
+ /* TODO: add suspend/resume support! */
+ break;
+ case USB_PORT_FEAT_POWER:
+ dum->port_status |= USB_SS_PORT_STAT_POWER;
+ set_link_state(dum);
+ break;
+ case USB_PORT_FEAT_BH_PORT_RESET:
+ case USB_PORT_FEAT_RESET:
+ /* if it's already enabled, disable */
+ dum->port_status = 0;
+ dum->port_status = (USB_SS_PORT_STAT_POWER |
+ USB_PORT_STAT_CONNECTION |
+ USB_PORT_STAT_RESET);
+ /* We want to reset device status. All but the
+ * Self powered feature
+ */
+ dum->devstatus &= 0x0000 |
+ (1 << USB_DEVICE_SELF_POWERED);
+ /* FIXME: what is the correct reset signaling interval?
+ * Is it still 50msec as for HS?
+ */
+ dum->re_timeout = jiffies + msecs_to_jiffies(50);
+ /* FALLS THROUGH */
+ default:
+ if ((dum->port_status &
+ USB_SS_PORT_STAT_POWER) != 0) {
+ dum->port_status |= (1 << wValue);
+ set_link_state(dum);
+ }
+ }
+ break;
+ case GetPortErrorCount:
+ /* We'll always return 0 since this is a dummy hub */
+ *(__le32 *) buf = cpu_to_le32 (0);
+ break;
+ case SetHubDepth:
+ break;
+ default:
+ dev_dbg(dummy_dev(dum),
+ "hub control req%04x v%04x i%04x l%d\n",
+ typeReq, wValue, wIndex, wLength);
+
+ /* "protocol stall" on error */
+ retval = -EPIPE;
+ }
+ spin_unlock_irqrestore(&dum->lock, flags);
+
+ if ((dum->port_status & PORT_C_MASK) != 0)
+ usb_hcd_poll_rh_status(hcd);
+ return retval;
+}
+
+static int dummy_hub_control(
struct usb_hcd *hcd,
u16 typeReq,
u16 wValue,
@@ -1690,7 +2041,11 @@ static int dummy_hub_control (
dum->port_status &= ~(USB_PORT_STAT_ENABLE
| USB_PORT_STAT_LOW_SPEED
| USB_PORT_STAT_HIGH_SPEED);
- dum->devstatus = 0;
+ /*
+ * We want to reset device status. All but the
+ * Self powered feature
+ */
+ dum->devstatus &= (1 << USB_DEVICE_SELF_POWERED);
/* 50msec reset signaling */
dum->re_timeout = jiffies + msecs_to_jiffies(50);
/* FALLS THROUGH */
@@ -1852,6 +2207,32 @@ static int dummy_h_get_frame (struct usb_hcd *hcd)
return dummy_g_get_frame (NULL);
}
+/**
+ * Issue an Address Device command (which will issue a SetAddress request to
+ * the device).
+ * We should be protected by the usb_address0_mutex in khubd's hub_port_init, so
+ * we should only issue and wait on one address command at the same time.
+ *
+ * The device address comes from the struct dum_master_data
+ * field of the the_controller. It can be either ss_master or
+ * master, so this function is used both for SS and HS/FS hcd
+ * driver
+ *
+ * @param hcd - host controller of the device
+ * @param udev - device to address
+ *
+ * @return int - 0 on sucsess, or an error code (refere to
+ * errno-base.h for details)
+ */
+static int dummy_address_device(struct usb_hcd *hcd, struct usb_device *udev)
+{
+ struct dummy *dum = hcd_to_dummy(hcd);
+ udev->devnum = dum->devnum ;
+ return usb_control_msg(udev, (PIPE_CONTROL << 30),
+ USB_REQ_SET_ADDRESS, 0, udev->devnum, 0,
+ NULL, 0, USB_CTRL_SET_TIMEOUT);
+}
+
static const struct hc_driver dummy_hcd = {
.description = (char *) driver_name,
.product_desc = "Dummy host controller",
@@ -1864,6 +2245,7 @@ static const struct hc_driver dummy_hcd = {
.urb_enqueue = dummy_urb_enqueue,
.urb_dequeue = dummy_urb_dequeue,
+ .address_device = dummy_address_device,
.get_frame_number = dummy_h_get_frame,
@@ -1873,6 +2255,28 @@ static const struct hc_driver dummy_hcd = {
.bus_resume = dummy_bus_resume,
};
+static const struct hc_driver dummy_ss_hcd = {
+ .description = (char *) ss_driver_name,
+ .product_desc = "Dummy SS host controller",
+ .hcd_priv_size = sizeof(struct dummy),
+
+ .flags = HCD_USB3,
+
+ .start = dummy_start,
+ .stop = dummy_stop,
+
+ .urb_enqueue = dummy_urb_enqueue,
+ .urb_dequeue = dummy_urb_dequeue,
+ .address_device = dummy_address_device,
+
+ .get_frame_number = dummy_h_get_frame,
+
+ .hub_status_data = dummy_hub_status,
+ .hub_control = dummy_ss_hub_control,
+ .bus_suspend = dummy_bus_suspend,
+ .bus_resume = dummy_bus_resume,
+};
+
static int dummy_hcd_probe(struct platform_device *pdev)
{
struct usb_hcd *hcd;
@@ -1890,6 +2294,28 @@ static int dummy_hcd_probe(struct platform_device *pdev)
usb_put_hcd (hcd);
the_controller = NULL;
}
+ the_controller->devnum = 2;
+ return retval;
+}
+
+static int dummy_hcd_probe_ss(struct platform_device *pdev)
+{
+ struct usb_hcd *hcd;
+ int retval;
+
+ dev_info(&pdev->dev, "%s, driver " DRIVER_VERSION "\n", ss_driver_desc);
+
+ hcd = usb_create_hcd(&dummy_ss_hcd, &pdev->dev, dev_name(&pdev->dev));
+ if (!hcd)
+ return -ENOMEM;
+ the_ss_controller = hcd_to_dummy(hcd);
+
+ retval = usb_add_hcd(hcd, 0, 0);
+ if (retval != 0) {
+ usb_put_hcd(hcd);
+ the_ss_controller = NULL;
+ }
+ the_ss_controller->devnum = 3;
return retval;
}
@@ -1904,6 +2330,17 @@ static int dummy_hcd_remove (struct platform_device *pdev)
return 0;
}
+static int dummy_ss_hcd_remove(struct platform_device *pdev)
+{
+ struct usb_hcd *hcd;
+
+ hcd = platform_get_drvdata(pdev);
+ usb_remove_hcd(hcd);
+ usb_put_hcd(hcd);
+ the_ss_controller = NULL;
+ return 0;
+}
+
static int dummy_hcd_suspend (struct platform_device *pdev, pm_message_t state)
{
struct usb_hcd *hcd;
@@ -1945,10 +2382,23 @@ static struct platform_driver dummy_hcd_driver = {
},
};
+static struct platform_driver dummy_ss_hcd_driver = {
+ .probe = dummy_hcd_probe_ss,
+ .remove = dummy_ss_hcd_remove,
+ .suspend = dummy_hcd_suspend,
+ .resume = dummy_hcd_resume,
+ .driver = {
+ .name = (char *) ss_driver_name,
+ .owner = THIS_MODULE,
+ },
+};
+
/*-------------------------------------------------------------------------*/
static struct platform_device *the_udc_pdev;
+static struct platform_device *the_ss_udc_pdev;
static struct platform_device *the_hcd_pdev;
+static struct platform_device *the_ss_hcd_pdev;
static int __init init (void)
{
@@ -1960,34 +2410,73 @@ static int __init init (void)
the_hcd_pdev = platform_device_alloc(driver_name, -1);
if (!the_hcd_pdev)
return retval;
+
+ the_ss_hcd_pdev = platform_device_alloc(ss_driver_name, -1);
+ if (!the_ss_hcd_pdev)
+ goto err_alloc_ss_hcd;
+
the_udc_pdev = platform_device_alloc(gadget_name, -1);
if (!the_udc_pdev)
goto err_alloc_udc;
+ the_ss_udc_pdev = platform_device_alloc(ss_gadget_name, -1);
+ if (!the_ss_udc_pdev)
+ goto err_alloc_ss_udc;
+
retval = platform_driver_register(&dummy_hcd_driver);
if (retval < 0)
goto err_register_hcd_driver;
+
+ retval = platform_driver_register(&dummy_ss_hcd_driver);
+ if (retval < 0)
+ goto err_register_ss_hcd_driver;
+
retval = platform_driver_register(&dummy_udc_driver);
if (retval < 0)
goto err_register_udc_driver;
+ retval = platform_driver_register(&dummy_ss_udc_driver);
+ if (retval < 0)
+ goto err_register_ss_udc_driver;
+
retval = platform_device_add(the_hcd_pdev);
if (retval < 0)
goto err_add_hcd;
+
+ retval = platform_device_add(the_ss_hcd_pdev);
+ if (retval < 0)
+ goto err_add_ss_hcd;
+
retval = platform_device_add(the_udc_pdev);
if (retval < 0)
goto err_add_udc;
+
+ retval = platform_device_add(the_ss_udc_pdev);
+ if (retval < 0)
+ goto err_add_ss_udc;
return retval;
+err_add_ss_udc:
+ platform_device_unregister(the_udc_pdev);
err_add_udc:
+ platform_device_del(the_ss_hcd_pdev);
+err_add_ss_hcd:
platform_device_del(the_hcd_pdev);
err_add_hcd:
+ platform_driver_unregister(&dummy_ss_udc_driver);
+err_register_ss_udc_driver:
platform_driver_unregister(&dummy_udc_driver);
err_register_udc_driver:
+ platform_driver_unregister(&dummy_ss_hcd_driver);
+err_register_ss_hcd_driver:
platform_driver_unregister(&dummy_hcd_driver);
err_register_hcd_driver:
+ platform_device_put(the_ss_udc_pdev);
+err_alloc_ss_udc:
platform_device_put(the_udc_pdev);
err_alloc_udc:
+ platform_device_put(the_ss_hcd_pdev);
+err_alloc_ss_hcd:
platform_device_put(the_hcd_pdev);
return retval;
}
@@ -1996,8 +2485,12 @@ module_init (init);
static void __exit cleanup (void)
{
platform_device_unregister(the_udc_pdev);
+ platform_device_unregister(the_ss_udc_pdev);
platform_device_unregister(the_hcd_pdev);
+ platform_device_unregister(the_ss_hcd_pdev);
platform_driver_unregister(&dummy_udc_driver);
+ platform_driver_unregister(&dummy_ss_udc_driver);
platform_driver_unregister(&dummy_hcd_driver);
+ platform_driver_unregister(&dummy_ss_hcd_driver);
}
module_exit (cleanup);
--
1.6.3.3
--
Sent by an consultant of the Qualcomm Inovation Center, Inc.
The Qualcomm Inovation Center, Inc.is a member of the Code Aurora Forum.
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