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USB: SS: Add support for Super Speed USB interface

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This adds usb framework support for super-speed usb, which will
further facilitate to add stack support for xHCI.

Signed-off-by: Vikas C Sajjan <vikas.sajjan@samsung.com>
Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
This commit is contained in:
Vivek Gautam 2013-04-12 16:34:38 +05:30 committed by Marek Vasut
parent 289f3cb28a
commit 6497c66704
5 changed files with 58 additions and 9 deletions
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24
common/cmd_usb.c
View file

@ -287,12 +287,24 @@ static struct usb_device *usb_find_device(int devnum)
static inline char *portspeed(int speed)
{
if (speed == USB_SPEED_HIGH)
return "480 Mb/s";
else if (speed == USB_SPEED_LOW)
return "1.5 Mb/s";
else
return "12 Mb/s";
char *speed_str;
switch (speed) {
case USB_SPEED_SUPER:
speed_str = "5 Gb/s";
break;
case USB_SPEED_HIGH:
speed_str = "480 Mb/s";
break;
case USB_SPEED_LOW:
speed_str = "1.5 Mb/s";
break;
default:
speed_str = "12 Mb/s";
break;
}
return speed_str;
}
/* shows the device tree recursively */

5
common/usb.c
View file

@ -409,6 +409,11 @@ static int usb_parse_config(struct usb_device *dev,
wMaxPacketSize);
debug("if %d, ep %d\n", ifno, epno);
break;
case USB_DT_SS_ENDPOINT_COMP:
if_desc = &dev->config.if_desc[ifno];
memcpy(&if_desc->ss_ep_comp_desc[epno],
&buffer[index], buffer[index]);
break;
default:
if (head->bLength == 0)
return 1;

8
common/usb_hub.c
View file

@ -165,7 +165,9 @@ static struct usb_hub_device *usb_hub_allocate(void)
static inline char *portspeed(int portstatus)
{
if (portstatus & (1 << USB_PORT_FEAT_HIGHSPEED))
if (portstatus & (1 << USB_PORT_FEAT_SUPERSPEED))
return "5 Gb/s";
else if (portstatus & (1 << USB_PORT_FEAT_HIGHSPEED))
return "480 Mb/s";
else if (portstatus & (1 << USB_PORT_FEAT_LOWSPEED))
return "1.5 Mb/s";
@ -268,7 +270,9 @@ void usb_hub_port_connect_change(struct usb_device *dev, int port)
/* Allocate a new device struct for it */
usb = usb_alloc_new_device(dev->controller);
if (portstatus & USB_PORT_STAT_HIGH_SPEED)
if (portstatus & USB_PORT_STAT_SUPER_SPEED)
usb->speed = USB_SPEED_SUPER;
else if (portstatus & USB_PORT_STAT_HIGH_SPEED)
usb->speed = USB_SPEED_HIGH;
else if (portstatus & USB_PORT_STAT_LOW_SPEED)
usb->speed = USB_SPEED_LOW;

6
include/usb.h
View file

@ -76,6 +76,12 @@ struct usb_interface {
unsigned char act_altsetting;
struct usb_endpoint_descriptor ep_desc[USB_MAXENDPOINTS];
/*
* Super Speed Device will have Super Speed Endpoint
* Companion Descriptor (section 9.6.7 of usb 3.0 spec)
* Revision 1.0 June 6th 2011
*/
struct usb_ss_ep_comp_descriptor ss_ep_comp_desc[USB_MAXENDPOINTS];
} __attribute__ ((packed));
/* Configuration information.. */

24
include/usb_defs.h
View file

@ -215,6 +215,8 @@
#define USB_PORT_FEAT_POWER 8
#define USB_PORT_FEAT_LOWSPEED 9
#define USB_PORT_FEAT_HIGHSPEED 10
#define USB_PORT_FEAT_FULLSPEED 11
#define USB_PORT_FEAT_SUPERSPEED 12
#define USB_PORT_FEAT_C_CONNECTION 16
#define USB_PORT_FEAT_C_ENABLE 17
#define USB_PORT_FEAT_C_SUSPEND 18
@ -231,8 +233,20 @@
#define USB_PORT_STAT_POWER 0x0100
#define USB_PORT_STAT_LOW_SPEED 0x0200
#define USB_PORT_STAT_HIGH_SPEED 0x0400 /* support for EHCI */
#define USB_PORT_STAT_FULL_SPEED 0x0800
#define USB_PORT_STAT_SUPER_SPEED 0x1000 /* support for XHCI */
#define USB_PORT_STAT_SPEED \
(USB_PORT_STAT_LOW_SPEED | USB_PORT_STAT_HIGH_SPEED)
(USB_PORT_STAT_LOW_SPEED | USB_PORT_STAT_HIGH_SPEED | \
USB_PORT_STAT_FULL_SPEED | USB_PORT_STAT_SUPER_SPEED)
/*
* Additions to wPortStatus bit field from USB 3.0
* See USB 3.0 spec Table 10-10
*/
#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
/* wPortChange bits */
#define USB_PORT_STAT_C_CONNECTION 0x0001
@ -241,6 +255,14 @@
#define USB_PORT_STAT_C_OVERCURRENT 0x0008
#define USB_PORT_STAT_C_RESET 0x0010
/*
* Addition to wPortChange bit fields form USB 3.0
* 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) */
#define HUB_CHAR_LPSM 0x0003
#define HUB_CHAR_COMPOUND 0x0004