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USB hub fixes. Mostly dealing with setting the hub function address at the right time and powering up downstream ports

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This commit is contained in:
Gregory Nutt
2015-04-23 16:42:53 -06:00
parent d11af85ddf
commit 2586bc3fcc
8 changed files with 177 additions and 145 deletions
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drivers/usbhost/usbhost_devaddr.c
+8 -11
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@@ -251,7 +251,8 @@ void usbhost_devaddr_initialize(FAR struct usbhost_roothubport_s *rhport)
* newly connected and so is in need of a function address.
*
* Returned Value:
* Zero on success; a negated errno value is returned on failure.
* On success, a new device function address in the the range 0x01 to 0x7f
* is returned. On failure, a negated errno value is returned.
*
*******************************************************************************/
@@ -278,38 +279,34 @@ int usbhost_devaddr_create(FAR struct usbhost_hubport_s *hport)
if (devaddr < 0)
{
udbg("ERROR: Failed to allocate a device address\n");
return devaddr;
}
/* Set the function address in the hub port structure */
hport->funcaddr = devaddr;
return OK;
return devaddr;
}
/*******************************************************************************
* Name: usbhost_devaddr_destroy
*
* Description:
* Release a device address previously assigned to a hub port by
* usbhost_devaddr_create().
* Release a device address previously assigned by usbhost_devaddr_create().
*
* Input Parameters:
* hport - A reference to a hub port structure from which a device has been
* disconnected and so no longer needs the function address.
* devaddr - The address to be released.
*
* Returned Value:
* None
*
*******************************************************************************/
void usbhost_devaddr_destroy(FAR struct usbhost_hubport_s *hport)
void usbhost_devaddr_destroy(FAR struct usbhost_hubport_s *hport, uint8_t devaddr)
{
FAR struct usbhost_devaddr_s *devgen;
/* Ignore bad device address */
if (hport->funcaddr > 0 && hport->funcaddr < 0x7f)
if (devaddr > 0 && devaddr < 0x7f)
{
/* Get the address generation data from the root hub port */
@@ -323,7 +320,7 @@ void usbhost_devaddr_destroy(FAR struct usbhost_hubport_s *hport)
/* Free the device address */
usbhost_devaddr_free(devgen, hport->funcaddr);
usbhost_devaddr_free(devgen, devaddr);
usbhost_givesem(devgen);
}
}