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authorHeikki Krogerus <heikki.krogerus@linux.intel.com>2019-12-30 17:26:05 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-01-09 10:48:55 +0100
commitd48ece0bce2d733c1c831d64751c0acaee1e8dc9 (patch)
tree86fd3e85bb08deac6dd544512a89c05c1a1dcd50 /include/linux/usb
parent7823905de0c6c319995d710bb67f761681dc7e4e (diff)
usb: pd: Add definition for DFP and UFP1 VDOs
The latest version of the USB Power Delivery Specification R3.0 added UFP and DFP product types for the Discover Identity message. Both types can be used for example for checking the USB capability of the partner, which means the USB modes (USB 2.0, USB 3.0 and USB4) that the partner device supports. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20191230142611.24921-10-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/usb')
-rw-r--r--include/linux/usb/pd_vdo.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/include/linux/usb/pd_vdo.h b/include/linux/usb/pd_vdo.h
index 781f4e98dd23..35b8e15efaa0 100644
--- a/include/linux/usb/pd_vdo.h
+++ b/include/linux/usb/pd_vdo.h
@@ -140,6 +140,38 @@
#define PD_PRODUCT_PID(vdo) (((vdo) >> 16) & 0xffff)
/*
+ * UFP VDO1
+ * --------
+ * <31:29> :: UFP VDO version
+ * <28> :: Reserved
+ * <27:24> :: Device capability
+ * <23:6> :: Reserved
+ * <5:3> :: Alternate modes
+ * <2:0> :: USB highest speed
+ */
+#define PD_VDO1_UFP_DEVCAP(vdo) (((vdo) & GENMASK(27, 24)) >> 24)
+
+#define DEV_USB2_CAPABLE BIT(0)
+#define DEV_USB2_BILLBOARD BIT(1)
+#define DEV_USB3_CAPABLE BIT(2)
+#define DEV_USB4_CAPABLE BIT(3)
+
+/*
+ * DFP VDO
+ * --------
+ * <31:29> :: DFP VDO version
+ * <28:27> :: Reserved
+ * <26:24> :: Host capability
+ * <23:5> :: Reserved
+ * <4:0> :: Port number
+ */
+#define PD_VDO_DFP_HOSTCAP(vdo) (((vdo) & GENMASK(26, 24)) >> 24)
+
+#define HOST_USB2_CAPABLE BIT(0)
+#define HOST_USB3_CAPABLE BIT(1)
+#define HOST_USB4_CAPABLE BIT(2)
+
+/*
* Cable VDO
* ---------
* <31:28> :: Cable HW version