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[Qemu-devel] [PATCH 3/6] usb: use USBDescriptor for config descriptors.
From: |
Gerd Hoffmann |
Subject: |
[Qemu-devel] [PATCH 3/6] usb: use USBDescriptor for config descriptors. |
Date: |
Thu, 29 Mar 2012 16:48:55 +0200 |
Add config descriptor substruct to USBDescriptor,
use it in the descriptor generator code.
Signed-off-by: Gerd Hoffmann <address@hidden>
---
hw/usb/desc.c | 22 ++++++++++++----------
hw/usb/desc.h | 9 +++++++++
2 files changed, 21 insertions(+), 10 deletions(-)
diff --git a/hw/usb/desc.c b/hw/usb/desc.c
index 5cecb25..3466968 100644
--- a/hw/usb/desc.c
+++ b/hw/usb/desc.c
@@ -78,22 +78,24 @@ int usb_desc_config(const USBDescConfig *conf, uint8_t
*dest, size_t len)
{
uint8_t bLength = 0x09;
uint16_t wTotalLength = 0;
+ USBDescriptor *d = (void *)dest;
int i, rc;
if (len < bLength) {
return -1;
}
- dest[0x00] = bLength;
- dest[0x01] = USB_DT_CONFIG;
- dest[0x04] = conf->bNumInterfaces;
- dest[0x05] = conf->bConfigurationValue;
- dest[0x06] = conf->iConfiguration;
- dest[0x07] = conf->bmAttributes;
- dest[0x08] = conf->bMaxPower;
+ d->bLength = bLength;
+ d->bDescriptorType = USB_DT_CONFIG;
+
+ d->u.config.bNumInterfaces = conf->bNumInterfaces;
+ d->u.config.bConfigurationValue = conf->bConfigurationValue;
+ d->u.config.iConfiguration = conf->iConfiguration;
+ d->u.config.bmAttributes = conf->bmAttributes;
+ d->u.config.bMaxPower = conf->bMaxPower;
wTotalLength += bLength;
- /* handle grouped interfaces if any*/
+ /* handle grouped interfaces if any */
for (i = 0; i < conf->nif_groups; i++) {
rc = usb_desc_iface_group(&(conf->if_groups[i]),
dest + wTotalLength,
@@ -113,8 +115,8 @@ int usb_desc_config(const USBDescConfig *conf, uint8_t
*dest, size_t len)
wTotalLength += rc;
}
- dest[0x02] = usb_lo(wTotalLength);
- dest[0x03] = usb_hi(wTotalLength);
+ d->u.config.wTotalLength_lo = usb_lo(wTotalLength);
+ d->u.config.wTotalLength_hi = usb_hi(wTotalLength);
return wTotalLength;
}
diff --git a/hw/usb/desc.h b/hw/usb/desc.h
index 15d0780..298e050 100644
--- a/hw/usb/desc.h
+++ b/hw/usb/desc.h
@@ -36,6 +36,15 @@ typedef struct USBDescriptor {
uint8_t bNumConfigurations;
uint8_t bReserved;
} device_qualifier;
+ struct {
+ uint8_t wTotalLength_lo;
+ uint8_t wTotalLength_hi;
+ uint8_t bNumInterfaces;
+ uint8_t bConfigurationValue;
+ uint8_t iConfiguration;
+ uint8_t bmAttributes;
+ uint8_t bMaxPower;
+ } config;
} u;
} QEMU_PACKED USBDescriptor;
--
1.7.1
- [Qemu-devel] [PATCH 0/6] usb: descriptor rework., Gerd Hoffmann, 2012/03/29
- [Qemu-devel] [PATCH 3/6] usb: use USBDescriptor for config descriptors.,
Gerd Hoffmann <=
- [Qemu-devel] [PATCH 1/6] usb: add USBDescriptor, use for device descriptors., Gerd Hoffmann, 2012/03/29
- [Qemu-devel] [PATCH 4/6] usb: use USBDescriptor for interface descriptors., Gerd Hoffmann, 2012/03/29
- [Qemu-devel] [PATCH 6/6] usb-host: rewrite usb_linux_update_endp_table, Gerd Hoffmann, 2012/03/29
- [Qemu-devel] [PATCH 2/6] usb: use USBDescriptor for device qualifier descriptors., Gerd Hoffmann, 2012/03/29
- [Qemu-devel] [PATCH 5/6] usb: use USBDescriptor for endpoint descriptors., Gerd Hoffmann, 2012/03/29
- Re: [Qemu-devel] [PATCH 0/6] usb: descriptor rework., Hans de Goede, 2012/03/30