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Basic USB device resume (root hub only), by Lonnie Mendez. 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2449 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-02-22 20:21:33 +00:00
parent cfc3475a8d
commit 96217e315d
1 changed files with 23 additions and 0 deletions
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23
hw/usb-uhci.c
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@ -26,6 +26,8 @@
//#define DEBUG
//#define DEBUG_PACKET
#define UHCI_CMD_FGR (1 << 4)
#define UHCI_CMD_EGSM (1 << 3)
#define UHCI_CMD_GRESET (1 << 2)
#define UHCI_CMD_HCRESET (1 << 1)
#define UHCI_CMD_RS (1 << 0)
@ -327,6 +329,21 @@ static uint32_t uhci_ioport_readl(void *opaque, uint32_t addr)
return val;
}
/* signal resume if controller suspended */
static void uhci_resume (void *opaque)
{
UHCIState *s = (UHCIState *)opaque;
if (!s)
return;
if (s->cmd & UHCI_CMD_EGSM) {
s->cmd |= UHCI_CMD_FGR;
s->status |= UHCI_STS_RD;
uhci_update_irq(s);
}
}
static void uhci_attach(USBPort *port1, USBDevice *dev)
{
UHCIState *s = port1->opaque;
@ -344,6 +361,9 @@ static void uhci_attach(USBPort *port1, USBDevice *dev)
port->ctrl |= UHCI_PORT_LSDA;
else
port->ctrl &= ~UHCI_PORT_LSDA;
uhci_resume(s);
port->port.dev = dev;
/* send the attach message */
usb_send_msg(dev, USB_MSG_ATTACH);
@ -358,6 +378,9 @@ static void uhci_attach(USBPort *port1, USBDevice *dev)
port->ctrl &= ~UHCI_PORT_EN;
port->ctrl |= UHCI_PORT_ENC;
}
uhci_resume(s);
dev = port->port.dev;
if (dev) {
/* send the detach message */