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authorVivek Gautam <gautam.vivek@samsung.com>2013-04-12 16:34:38 +0530
committerMarek Vasut <marex@denx.de>2013-05-05 23:54:22 +0200
commit6497c66704d03956e7ea49b54fcaa38740736416 (patch)
tree409cd69a5d470bb5dd867d05df9b90aa82313e44
parent289f3cb28a3916b6c4c770db9a88463884be5b6c (diff)
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USB: SS: Add support for Super Speed USB interface
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>
-rw-r--r--common/cmd_usb.c24
-rw-r--r--common/usb.c5
-rw-r--r--common/usb_hub.c8
-rw-r--r--include/usb.h6
-rw-r--r--include/usb_defs.h24
5 files changed, 58 insertions, 9 deletions
diff --git a/common/cmd_usb.c b/common/cmd_usb.c
index adc5f02..70e803b 100644
--- a/common/cmd_usb.c
+++ b/common/cmd_usb.c
@@ -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 */
diff --git a/common/usb.c b/common/usb.c
index 3a96a34..55fff5b 100644
--- a/common/usb.c
+++ b/common/usb.c
@@ -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;
diff --git a/common/usb_hub.c b/common/usb_hub.c
index ab41943..1e225e6 100644
--- a/common/usb_hub.c
+++ b/common/usb_hub.c
@@ -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;
diff --git a/include/usb.h b/include/usb.h
index d79c865..d7b082d 100644
--- a/include/usb.h
+++ b/include/usb.h
@@ -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.. */
diff --git a/include/usb_defs.h b/include/usb_defs.h
index c0022e6..6ce6791 100644
--- a/include/usb_defs.h
+++ b/include/usb_defs.h
@@ -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