From 446fa3a95df1e8b78f25e1babc41e46edd200821 Mon Sep 17 00:00:00 2001 From: John Youn Date: Fri, 5 Feb 2016 17:05:12 -0800 Subject: usb: ch9: Add size macro for SSP dev cap descriptor The SuperspeedPlus Device Capability Descriptor has a variable size depending on the number of sublink speed attributes. This patch adds a macro to calculate that size. The macro takes one argument, the Sublink Speed Attribute Count (SSAC) as reported by the descriptor in bmAttributes[4:0]. See USB 3.1 9.6.2.5, Table 9-19. Signed-off-by: John Youn Signed-off-by: Felipe Balbi --- include/uapi/linux/usb/ch9.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/usb/ch9.h b/include/uapi/linux/usb/ch9.h index 252ac16635dc..28bee8d44735 100644 --- a/include/uapi/linux/usb/ch9.h +++ b/include/uapi/linux/usb/ch9.h @@ -923,6 +923,12 @@ struct usb_ptm_cap_descriptor { __u8 bDevCapabilityType; } __attribute__((packed)); +/* + * The size of the descriptor for the Sublink Speed Attribute Count + * (SSAC) specified in bmAttributes[4:0]. + */ +#define USB_DT_USB_SSP_CAP_SIZE(ssac) (16 + ssac * 4) + /*-------------------------------------------------------------------------*/ /* USB_DT_WIRELESS_ENDPOINT_COMP: companion descriptor associated with -- cgit v1.3-15-g9ac1 From 346dbc69933086312d9e76bb68ba04e2c82c9b13 Mon Sep 17 00:00:00 2001 From: Li Jun Date: Fri, 19 Feb 2016 10:04:41 +0800 Subject: usb: add OTG status selector definition for HNP polling A host is required to use the GetStatus command, with wIndex set to the OTG status selector(F000H) to request the Host request flag from the peripheral. Acked-by: Peter Chen Signed-off-by: Li Jun Signed-off-by: Felipe Balbi --- include/uapi/linux/usb/ch9.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/usb/ch9.h b/include/uapi/linux/usb/ch9.h index 28bee8d44735..06d6c6228a7a 100644 --- a/include/uapi/linux/usb/ch9.h +++ b/include/uapi/linux/usb/ch9.h @@ -708,6 +708,7 @@ struct usb_otg20_descriptor { #define USB_OTG_HNP (1 << 1) /* swap host/device roles */ #define USB_OTG_ADP (1 << 2) /* support ADP */ +#define OTG_STS_SELECTOR 0xF000 /* OTG status selector */ /*-------------------------------------------------------------------------*/ /* USB_DT_DEBUG: for special highspeed devices, replacing serial console */ -- cgit v1.3-15-g9ac1