From d3f904ea7b3027f58037e359cc199c2490dc5c3d Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Thu, 29 Mar 2012 12:04:54 +0200 Subject: usb: add USBDescriptor, use for device descriptors. This patch adds a new type for the binary representation of usb descriptors. It is put into use for the descriptor generator code where the struct replaces the hard-coded offsets. Signed-off-by: Gerd Hoffmann --- hw/usb/desc.c | 39 ++++++++++++++++++++------------------- 1 file changed, 20 insertions(+), 19 deletions(-) (limited to 'hw/usb/desc.c') diff --git a/hw/usb/desc.c b/hw/usb/desc.c index 9847a75b83..de7e2043b5 100644 --- a/hw/usb/desc.c +++ b/hw/usb/desc.c @@ -18,32 +18,33 @@ int usb_desc_device(const USBDescID *id, const USBDescDevice *dev, uint8_t *dest, size_t len) { uint8_t bLength = 0x12; + USBDescriptor *d = (void *)dest; if (len < bLength) { return -1; } - dest[0x00] = bLength; - dest[0x01] = USB_DT_DEVICE; + d->bLength = bLength; + d->bDescriptorType = USB_DT_DEVICE; - dest[0x02] = usb_lo(dev->bcdUSB); - dest[0x03] = usb_hi(dev->bcdUSB); - dest[0x04] = dev->bDeviceClass; - dest[0x05] = dev->bDeviceSubClass; - dest[0x06] = dev->bDeviceProtocol; - dest[0x07] = dev->bMaxPacketSize0; + d->u.device.bcdUSB_lo = usb_lo(dev->bcdUSB); + d->u.device.bcdUSB_hi = usb_hi(dev->bcdUSB); + d->u.device.bDeviceClass = dev->bDeviceClass; + d->u.device.bDeviceSubClass = dev->bDeviceSubClass; + d->u.device.bDeviceProtocol = dev->bDeviceProtocol; + d->u.device.bMaxPacketSize0 = dev->bMaxPacketSize0; + + d->u.device.idVendor_lo = usb_lo(id->idVendor); + d->u.device.idVendor_hi = usb_hi(id->idVendor); + d->u.device.idProduct_lo = usb_lo(id->idProduct); + d->u.device.idProduct_hi = usb_hi(id->idProduct); + d->u.device.bcdDevice_lo = usb_lo(id->bcdDevice); + d->u.device.bcdDevice_hi = usb_hi(id->bcdDevice); + d->u.device.iManufacturer = id->iManufacturer; + d->u.device.iProduct = id->iProduct; + d->u.device.iSerialNumber = id->iSerialNumber; - dest[0x08] = usb_lo(id->idVendor); - dest[0x09] = usb_hi(id->idVendor); - dest[0x0a] = usb_lo(id->idProduct); - dest[0x0b] = usb_hi(id->idProduct); - dest[0x0c] = usb_lo(id->bcdDevice); - dest[0x0d] = usb_hi(id->bcdDevice); - dest[0x0e] = id->iManufacturer; - dest[0x0f] = id->iProduct; - dest[0x10] = id->iSerialNumber; - - dest[0x11] = dev->bNumConfigurations; + d->u.device.bNumConfigurations = dev->bNumConfigurations; return bLength; } -- cgit v1.2.1