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From: Christoph Fritz <chf.fritz@googlemail.com>
Date: Fri, 13 Jun 2014 09:54:30 +0200
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Subject: [PATCH 13/18] usb: add musb support
To: barebox@lists.infradead.org
---
include/usb/usb.h | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 62 insertions(+)
diff --git a/include/usb/usb.h b/include/usb/usb.h
index 1a369d2..6e204b4 100644
--- a/include/usb/usb.h
+++ b/include/usb/usb.h
@@ -27,6 +27,7 @@
#include <driver.h>
#include <usb/usb_defs.h>
#include <asm/byteorder.h>
+#include <asm/unaligned.h>
/* Everything is aribtrary */
#define USB_ALTSETTINGALLOC 4
@@ -41,6 +42,31 @@
#define USB_CNTL_TIMEOUT 100 /* 100ms timeout */
+/**
+ * struct usb_ctrlrequest - SETUP data for a USB device control request
+ * @bRequestType: matches the USB bmRequestType field
+ * @bRequest: matches the USB bRequest field
+ * @wValue: matches the USB wValue field (le16 byte order)
+ * @wIndex: matches the USB wIndex field (le16 byte order)
+ * @wLength: matches the USB wLength field (le16 byte order)
+ *
+ * This structure is used to send control requests to a USB device. It matches
+ * the different fields of the USB 2.0 Spec section 9.3, table 9-2. See the
+ * USB spec for a fuller description of the different fields, and what they are
+ * used for.
+ *
+ * Note that the driver for any interface can issue control requests.
+ * For most devices, interfaces don't coordinate with each other, so
+ * such requests may be made at any time.
+ */
+struct usb_ctrlrequest {
+ __u8 bRequestType;
+ __u8 bRequest;
+ __le16 wValue;
+ __le16 wIndex;
+ __le16 wLength;
+} __attribute__ ((packed));
+
/* String descriptor */
struct usb_string_descriptor {
unsigned char bLength;
@@ -539,4 +565,40 @@ enum usb_phy_interface {
USBPHY_INTERFACE_MODE_SERIAL,
USBPHY_INTERFACE_MODE_HSIC,
};
+
+
+/**
+ * usb_endpoint_maxp - get endpoint's max packet size
+ * @epd: endpoint to be checked
+ *
+ * Returns @epd's max packet
+ */
+static inline int usb_endpoint_maxp(const struct usb_endpoint_descriptor *epd)
+{
+ return __le16_to_cpu(get_unaligned(&epd->wMaxPacketSize));
+}
+
+/**
+ * usb_endpoint_type - get the endpoint's transfer type
+ * @epd: endpoint to be checked
+ *
+ * Returns one of USB_ENDPOINT_XFER_{CONTROL, ISOC, BULK, INT} according
+ * to @epd's transfer type.
+ */
+static inline int usb_endpoint_type(const struct usb_endpoint_descriptor *epd)
+{
+ return epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
+}
+
+/**
+ * usb_endpoint_num - get the endpoint's number
+ * @epd: endpoint to be checked
+ *
+ * Returns @epd's number: 0 to 15.
+ */
+static inline int usb_endpoint_num(const struct usb_endpoint_descriptor *epd)
+{
+ return epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
+}
+
#endif /*_USB_H_ */
--
1.7.10.4
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