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usb: add max_packet_size to USBEndpoint

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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann
2011-08-31 16:09:27 +02:00
parent 5b6780d045
commit f003397ce9
4 changed files with 44 additions and 30 deletions
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31
usb-linux.c
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@@ -83,7 +83,6 @@ struct endp_data {
AsyncURB *iso_urb;
int iso_urb_idx;
int iso_buffer_used;
int max_packet_size;
int inflight;
};
@@ -259,26 +258,6 @@ static int get_iso_buffer_used(USBHostDevice *s, int pid, int ep)
return get_endp(s, pid, ep)->iso_buffer_used;
}
static void set_max_packet_size(USBHostDevice *s, int pid, int ep,
uint8_t *descriptor)
{
int raw = descriptor[4] + (descriptor[5] << 8);
int size, microframes;
size = raw & 0x7ff;
switch ((raw >> 11) & 3) {
case 1: microframes = 2; break;
case 2: microframes = 3; break;
default: microframes = 1; break;
}
get_endp(s, pid, ep)->max_packet_size = size * microframes;
}
static int get_max_packet_size(USBHostDevice *s, int pid, int ep)
{
return get_endp(s, pid, ep)->max_packet_size;
}
/*
* Async URB state.
* We always allocate iso packet descriptors even for bulk transfers
@@ -674,7 +653,7 @@ static void usb_host_handle_destroy(USBDevice *dev)
static AsyncURB *usb_host_alloc_iso(USBHostDevice *s, int pid, uint8_t ep)
{
AsyncURB *aurb;
int i, j, len = get_max_packet_size(s, pid, ep);
int i, j, len = usb_ep_get_max_packet_size(&s->dev, pid, ep);
aurb = g_malloc0(s->iso_urb_count * sizeof(*aurb));
for (i = 0; i < s->iso_urb_count; i++) {
@@ -754,7 +733,7 @@ static int usb_host_handle_iso_data(USBHostDevice *s, USBPacket *p, int in)
int i, j, ret, max_packet_size, offset, len = 0;
uint8_t *buf;
max_packet_size = get_max_packet_size(s, p->pid, p->devep);
max_packet_size = usb_ep_get_max_packet_size(&s->dev, p->pid, p->devep);
if (max_packet_size == 0)
return USB_RET_NAK;
@@ -1133,6 +1112,7 @@ static int usb_linux_update_endp_table(USBHostDevice *s)
{
uint8_t *descriptors;
uint8_t devep, type, alt_interface;
uint16_t raw;
int interface, length, i, ep, pid;
struct endp_data *epd;
@@ -1200,9 +1180,8 @@ static int usb_linux_update_endp_table(USBHostDevice *s)
}
type = descriptors[i + 3] & 0x3;
if (type == USB_ENDPOINT_XFER_ISOC) {
set_max_packet_size(s, pid, ep, descriptors + i);
};
raw = descriptors[i + 4] + (descriptors[i + 5] << 8);
usb_ep_set_max_packet_size(&s->dev, pid, ep, raw);
assert(usb_ep_get_type(&s->dev, pid, ep) ==
USB_ENDPOINT_XFER_INVALID);
usb_ep_set_type(&s->dev, pid, ep, type);