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Merge tag 'usb-for-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

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Felipe writes:

usb: patches for v4.3 merge window

New support for Allwinne SoC on the MUSB driver has been added to the list of
glue layers. MUSB also got support for building all DMA engines in one binary;
this will be great for distros.

DWC3 now has no trace of dev_dbg()/dev_vdbg() usage. We will rely solely on
tracing to debug DWC3. There was also a fix for memory corruption with EP0 when
maxpacket size transfers are > 512 bytes.

Robert's EP capabilities flags is making EP selection a lot simpler. UDCs are
now required to set these flags up when adding endpoints to the framework.

Other than these, we have the usual set of miscelaneous cleanups and minor
fixes.

Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Greg Kroah-Hartman
2015-08-14 16:41:11 -07:00
parent e6bbe1d053 2f3cc24f07
commit a3fbedf98f
113 changed files with 3440 additions and 1079 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
include/linux/usb/chipidea.h
View File

@@ -34,6 +34,7 @@ struct ci_hdrc_platform_data {
#define CI_HDRC_CONTROLLER_STOPPED_EVENT 1
void (*notify_event) (struct ci_hdrc *ci, unsigned event);
struct regulator *reg_vbus;
struct usb_otg_caps ci_otg_caps;
bool tpl_support;
};

2
include/linux/usb/composite.h
View File

@@ -228,6 +228,8 @@ struct usb_function {
struct list_head list;
DECLARE_BITMAP(endpoints, 32);
const struct usb_function_instance *fi;
unsigned int bind_deactivated:1;
};
int usb_add_function(struct usb_configuration *, struct usb_function *);

200
include/linux/usb/gadget.h
View File

@@ -140,11 +140,50 @@ struct usb_ep_ops {
void (*fifo_flush) (struct usb_ep *ep);
};
/**
* struct usb_ep_caps - endpoint capabilities description
* @type_control:Endpoint supports control type (reserved for ep0).
* @type_iso:Endpoint supports isochronous transfers.
* @type_bulk:Endpoint supports bulk transfers.
* @type_int:Endpoint supports interrupt transfers.
* @dir_in:Endpoint supports IN direction.
* @dir_out:Endpoint supports OUT direction.
*/
struct usb_ep_caps {
unsigned type_control:1;
unsigned type_iso:1;
unsigned type_bulk:1;
unsigned type_int:1;
unsigned dir_in:1;
unsigned dir_out:1;
};
#define USB_EP_CAPS_TYPE_CONTROL 0x01
#define USB_EP_CAPS_TYPE_ISO 0x02
#define USB_EP_CAPS_TYPE_BULK 0x04
#define USB_EP_CAPS_TYPE_INT 0x08
#define USB_EP_CAPS_TYPE_ALL \
(USB_EP_CAPS_TYPE_ISO | USB_EP_CAPS_TYPE_BULK | USB_EP_CAPS_TYPE_INT)
#define USB_EP_CAPS_DIR_IN 0x01
#define USB_EP_CAPS_DIR_OUT 0x02
#define USB_EP_CAPS_DIR_ALL (USB_EP_CAPS_DIR_IN | USB_EP_CAPS_DIR_OUT)
#define USB_EP_CAPS(_type, _dir) \
{ \
.type_control = !!(_type & USB_EP_CAPS_TYPE_CONTROL), \
.type_iso = !!(_type & USB_EP_CAPS_TYPE_ISO), \
.type_bulk = !!(_type & USB_EP_CAPS_TYPE_BULK), \
.type_int = !!(_type & USB_EP_CAPS_TYPE_INT), \
.dir_in = !!(_dir & USB_EP_CAPS_DIR_IN), \
.dir_out = !!(_dir & USB_EP_CAPS_DIR_OUT), \
}
/**
* struct usb_ep - device side representation of USB endpoint
* @name:identifier for the endpoint, such as "ep-a" or "ep9in-bulk"
* @ops: Function pointers used to access hardware-specific operations.
* @ep_list:the gadget's ep_list holds all of its endpoints
* @caps:The structure describing types and directions supported by endoint.
* @maxpacket:The maximum packet size used on this endpoint. The initial
* value can sometimes be reduced (hardware allowing), according to
* the endpoint descriptor used to configure the endpoint.
@@ -167,12 +206,15 @@ struct usb_ep_ops {
* gadget->ep_list. the control endpoint (gadget->ep0) is not in that list,
* and is accessed only in response to a driver setup() callback.
*/
struct usb_ep {
void *driver_data;
const char *name;
const struct usb_ep_ops *ops;
struct list_head ep_list;
struct usb_ep_caps caps;
bool claimed;
unsigned maxpacket:16;
unsigned maxpacket_limit:16;
unsigned max_streams:16;
@@ -492,6 +534,9 @@ struct usb_gadget_ops {
int (*udc_start)(struct usb_gadget *,
struct usb_gadget_driver *);
int (*udc_stop)(struct usb_gadget *);
struct usb_ep *(*match_ep)(struct usb_gadget *,
struct usb_endpoint_descriptor *,
struct usb_ss_ep_comp_descriptor *);
};
/**
@@ -511,6 +556,7 @@ struct usb_gadget_ops {
* @dev: Driver model state for this abstract device.
* @out_epnum: last used out ep number
* @in_epnum: last used in ep number
* @otg_caps: OTG capabilities of this gadget.
* @sg_supported: true if we can handle scatter-gather
* @is_otg: True if the USB device port uses a Mini-AB jack, so that the
* gadget driver must provide a USB OTG descriptor.
@@ -526,6 +572,9 @@ struct usb_gadget_ops {
* @quirk_ep_out_aligned_size: epout requires buffer size to be aligned to
* MaxPacketSize.
* @is_selfpowered: if the gadget is self-powered.
* @deactivated: True if gadget is deactivated - in deactivated state it cannot
* be connected.
* @connected: True if gadget is connected.
*
* Gadgets have a mostly-portable "gadget driver" implementing device
* functions, handling all usb configurations and interfaces. Gadget
@@ -559,6 +608,7 @@ struct usb_gadget {
struct device dev;
unsigned out_epnum;
unsigned in_epnum;
struct usb_otg_caps *otg_caps;
unsigned sg_supported:1;
unsigned is_otg:1;
@@ -567,7 +617,12 @@ struct usb_gadget {
unsigned a_hnp_support:1;
unsigned a_alt_hnp_support:1;
unsigned quirk_ep_out_aligned_size:1;
unsigned quirk_altset_not_supp:1;
unsigned quirk_stall_not_supp:1;
unsigned quirk_zlp_not_supp:1;
unsigned is_selfpowered:1;
unsigned deactivated:1;
unsigned connected:1;
};
#define work_to_gadget(w) (container_of((w), struct usb_gadget, work))
@@ -584,7 +639,6 @@ static inline struct usb_gadget *dev_to_usb_gadget(struct device *dev)
#define gadget_for_each_ep(tmp, gadget) \
list_for_each_entry(tmp, &(gadget)->ep_list, ep_list)
/**
* usb_ep_align_maybe - returns @len aligned to ep's maxpacketsize if gadget
* requires quirk_ep_out_aligned_size, otherwise reguens len.
@@ -602,6 +656,34 @@ usb_ep_align_maybe(struct usb_gadget *g, struct usb_ep *ep, size_t len)
round_up(len, (size_t)ep->desc->wMaxPacketSize);
}
/**
* gadget_is_altset_supported - return true iff the hardware supports
* altsettings
* @g: controller to check for quirk
*/
static inline int gadget_is_altset_supported(struct usb_gadget *g)
{
return !g->quirk_altset_not_supp;
}
/**
* gadget_is_stall_supported - return true iff the hardware supports stalling
* @g: controller to check for quirk
*/
static inline int gadget_is_stall_supported(struct usb_gadget *g)
{
return !g->quirk_stall_not_supp;
}
/**
* gadget_is_zlp_supported - return true iff the hardware supports zlp
* @g: controller to check for quirk
*/
static inline int gadget_is_zlp_supported(struct usb_gadget *g)
{
return !g->quirk_zlp_not_supp;
}
/**
* gadget_is_dualspeed - return true iff the hardware handles high speed
* @g: controller that might support both high and full speeds
@@ -771,9 +853,24 @@ static inline int usb_gadget_vbus_disconnect(struct usb_gadget *gadget)
*/
static inline int usb_gadget_connect(struct usb_gadget *gadget)
{
int ret;
if (!gadget->ops->pullup)
return -EOPNOTSUPP;
return gadget->ops->pullup(gadget, 1);
if (gadget->deactivated) {
/*
* If gadget is deactivated we only save new state.
* Gadget will be connected automatically after activation.
*/
gadget->connected = true;
return 0;
}
ret = gadget->ops->pullup(gadget, 1);
if (!ret)
gadget->connected = 1;
return ret;
}
/**
@@ -784,20 +881,88 @@ static inline int usb_gadget_connect(struct usb_gadget *gadget)
* as a disconnect (when a VBUS session is active). Not all systems
* support software pullup controls.
*
* This routine may be used during the gadget driver bind() call to prevent
* the peripheral from ever being visible to the USB host, unless later
* usb_gadget_connect() is called. For example, user mode components may
* need to be activated before the system can talk to hosts.
*
* Returns zero on success, else negative errno.
*/
static inline int usb_gadget_disconnect(struct usb_gadget *gadget)
{
int ret;
if (!gadget->ops->pullup)
return -EOPNOTSUPP;
return gadget->ops->pullup(gadget, 0);
if (gadget->deactivated) {
/*
* If gadget is deactivated we only save new state.
* Gadget will stay disconnected after activation.
*/
gadget->connected = false;
return 0;
}
ret = gadget->ops->pullup(gadget, 0);
if (!ret)
gadget->connected = 0;
return ret;
}
/**
* usb_gadget_deactivate - deactivate function which is not ready to work
* @gadget: the peripheral being deactivated
*
* This routine may be used during the gadget driver bind() call to prevent
* the peripheral from ever being visible to the USB host, unless later
* usb_gadget_activate() is called. For example, user mode components may
* need to be activated before the system can talk to hosts.
*
* Returns zero on success, else negative errno.
*/
static inline int usb_gadget_deactivate(struct usb_gadget *gadget)
{
int ret;
if (gadget->deactivated)
return 0;
if (gadget->connected) {
ret = usb_gadget_disconnect(gadget);
if (ret)
return ret;
/*
* If gadget was being connected before deactivation, we want
* to reconnect it in usb_gadget_activate().
*/
gadget->connected = true;
}
gadget->deactivated = true;
return 0;
}
/**
* usb_gadget_activate - activate function which is not ready to work
* @gadget: the peripheral being activated
*
* This routine activates gadget which was previously deactivated with
* usb_gadget_deactivate() call. It calls usb_gadget_connect() if needed.
*
* Returns zero on success, else negative errno.
*/
static inline int usb_gadget_activate(struct usb_gadget *gadget)
{
if (!gadget->deactivated)
return 0;
gadget->deactivated = false;
/*
* If gadget has been connected before deactivation, or became connected
* while it was being deactivated, we call usb_gadget_connect().
*/
if (gadget->connected)
return usb_gadget_connect(gadget);
return 0;
}
/*-------------------------------------------------------------------------*/
@@ -1002,6 +1167,10 @@ int usb_assign_descriptors(struct usb_function *f,
struct usb_descriptor_header **ss);
void usb_free_all_descriptors(struct usb_function *f);
struct usb_descriptor_header *usb_otg_descriptor_alloc(
struct usb_gadget *gadget);
int usb_otg_descriptor_init(struct usb_gadget *gadget,
struct usb_descriptor_header *otg_desc);
/*-------------------------------------------------------------------------*/
/* utility to simplify map/unmap of usb_requests to/from DMA */
@@ -1034,6 +1203,21 @@ extern void usb_gadget_giveback_request(struct usb_ep *ep,
/*-------------------------------------------------------------------------*/
/* utility to find endpoint by name */
extern struct usb_ep *gadget_find_ep_by_name(struct usb_gadget *g,
const char *name);
/*-------------------------------------------------------------------------*/
/* utility to check if endpoint caps match descriptor needs */
extern int usb_gadget_ep_match_desc(struct usb_gadget *gadget,
struct usb_ep *ep, struct usb_endpoint_descriptor *desc,
struct usb_ss_ep_comp_descriptor *ep_comp);
/*-------------------------------------------------------------------------*/
/* utility to update vbus status for udc core, it may be scheduled */
extern void usb_udc_vbus_handler(struct usb_gadget *gadget, bool status);

9
include/linux/usb/msm_hsusb.h
View File

@@ -128,7 +128,7 @@ struct msm_otg_platform_data {
*/
struct msm_usb_cable {
struct notifier_block nb;
struct extcon_specific_cable_nb conn;
struct extcon_dev *extcon;
};
/**
@@ -155,6 +155,10 @@ struct msm_usb_cable {
* starting controller using usbcmd run/stop bit.
* @vbus: VBUS signal state trakining, using extcon framework
* @id: ID signal state trakining, using extcon framework
* @switch_gpio: Descriptor for GPIO used to control external Dual
* SPDT USB Switch.
* @reboot: Used to inform the driver to route USB D+/D- line to Device
* connector
*/
struct msm_otg {
struct usb_phy phy;
@@ -188,6 +192,9 @@ struct msm_otg {
struct msm_usb_cable vbus;
struct msm_usb_cable id;
struct gpio_desc *switch_gpio;
struct notifier_block reboot;
};
#endif

7
include/linux/usb/of.h
View File

@@ -15,6 +15,8 @@
enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np);
enum usb_device_speed of_usb_get_maximum_speed(struct device_node *np);
bool of_usb_host_tpl_support(struct device_node *np);
int of_usb_update_otg_caps(struct device_node *np,
struct usb_otg_caps *otg_caps);
#else
static inline enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np)
{
@@ -30,6 +32,11 @@ static inline bool of_usb_host_tpl_support(struct device_node *np)
{
return false;
}
static inline int of_usb_update_otg_caps(struct device_node *np,
struct usb_otg_caps *otg_caps)
{
return 0;
}
#endif
#if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_USB_SUPPORT)

15
include/linux/usb/otg.h
View File

@@ -41,6 +41,21 @@ struct usb_otg {
};
/**
* struct usb_otg_caps - describes the otg capabilities of the device
* @otg_rev: The OTG revision number the device is compliant with, it's
* in binary-coded decimal (i.e. 2.0 is 0200H).
* @hnp_support: Indicates if the device supports HNP.
* @srp_support: Indicates if the device supports SRP.
* @adp_support: Indicates if the device supports ADP.
*/
struct usb_otg_caps {
u16 otg_rev;
bool hnp_support;
bool srp_support;
bool adp_support;
};
extern const char *usb_otg_state_string(enum usb_otg_state state);
/* Context: can sleep */