summaryrefslogtreecommitdiff
path: root/payloads/libpayload/drivers/usb/usb.c
diff options
context:
space:
mode:
authorPatrick Georgi <patrick.georgi@secunet.com>2013-05-24 15:48:56 +0200
committerStefan Reinauer <stefan.reinauer@coreboot.org>2013-06-13 22:16:27 +0200
commit482af6d15ca8eed28b51edc11692815419326d65 (patch)
treecc7d78c5b6df1f8dd3035d48c7e9613bc8f803cd /payloads/libpayload/drivers/usb/usb.c
parent4fc7b6c994aabce12bf263d49d1bedddfd847db9 (diff)
libpayload: Redirect USB slave init through controller driver
xHCI requires special treatment of set_address since it determines the device number itself (instead of the driver, as with the other controllers). The controller also wants to validate a chosen device configuration and we need to setup additional structures for the device and the endpoints. Therefore, we add three functions to the hci_t structure, namely: set_address() finish_device_config() destroy_device() Current implementation for the Set Address request moved into generic_set_address() which is set_address() for the UHCI, OCHI and EHCI drivers. The latter two are only provided as hooks for the xHCI driver. The Set Configuration request is moved after endpoint enumeration. For all other controller drivers nothing changes, as there is no other device communication between the lines where the set_configuration() call moved. Change-Id: I6127627b9367ef573aa1a1525782bc1304ea350d Signed-off-by: Nico Huber <nico.huber@secunet.com> Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com> Reviewed-on: http://review.coreboot.org/3447 Tested-by: build bot (Jenkins) Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'payloads/libpayload/drivers/usb/usb.c')
-rw-r--r--payloads/libpayload/drivers/usb/usb.c36
1 files changed, 30 insertions, 6 deletions
diff --git a/payloads/libpayload/drivers/usb/usb.c b/payloads/libpayload/drivers/usb/usb.c
index 6dafd076c4..54a5935c1a 100644
--- a/payloads/libpayload/drivers/usb/usb.c
+++ b/payloads/libpayload/drivers/usb/usb.c
@@ -242,13 +242,11 @@ get_free_address (hci_t *controller)
return -1; // no free address
}
-static int
-set_address (hci_t *controller, int speed, int hubport, int hubaddr)
+int
+generic_set_address (hci_t *controller, int speed, int hubport, int hubaddr)
{
int adr = get_free_address (controller); // address to set
dev_req_t dr;
- configuration_descriptor_t *cd;
- device_descriptor_t *dd;
memset (&dr, 0, sizeof (dr));
dr.data_dir = host_to_device;
@@ -273,11 +271,29 @@ set_address (hci_t *controller, int speed, int hubport, int hubaddr)
dev->endpoints[0].direction = SETUP;
mdelay (50);
if (dev->controller->control (dev, OUT, sizeof (dr), &dr, 0, 0)) {
- usb_debug ("set_address failed\n");
return -1;
}
mdelay (50);
+
+ return adr;
+}
+
+static int
+set_address (hci_t *controller, int speed, int hubport, int hubaddr)
+{
+ int adr = controller->set_address(controller, speed, hubport, hubaddr);
+ if (adr < 0 || !controller->devices[adr]) {
+ usb_debug ("set_address failed\n");
+ return -1;
+ }
+ configuration_descriptor_t *cd;
+ device_descriptor_t *dd;
+
+ usbdev_t *dev = controller->devices[adr];
dev->address = adr;
+ dev->hub = hubaddr;
+ dev->port = hubport;
+ dev->speed = speed;
dev->descriptor = get_descriptor (dev, gen_bmRequestType
(device_to_host, standard_type, dev_recp), 1, 0, 0);
dd = (device_descriptor_t *) dev->descriptor;
@@ -298,7 +314,6 @@ set_address (hci_t *controller, int speed, int hubport, int hubaddr)
dev->configuration = get_descriptor (dev, gen_bmRequestType
(device_to_host, standard_type, dev_recp), 2, 0, 0);
cd = (configuration_descriptor_t *) dev->configuration;
- set_configuration (dev);
interface_descriptor_t *interface =
(interface_descriptor_t *) (((char *) cd) + cd->bLength);
{
@@ -366,6 +381,13 @@ set_address (hci_t *controller, int speed, int hubport, int hubaddr)
}
}
+ if (controller->finish_device_config &&
+ controller->finish_device_config(dev))
+ return adr; /* Device isn't configured correctly,
+ only control transfers may work. */
+
+ set_configuration(dev);
+
int class = dd->bDeviceClass;
if (class == 0)
class = interface->bInterfaceClass;
@@ -475,6 +497,8 @@ usb_detach_device(hci_t *controller, int devno)
controller->devices[devno]->destroy (controller->devices[devno]);
free(controller->devices[devno]);
controller->devices[devno] = NULL;
+ if (controller->destroy_device)
+ controller->destroy_device(controller, devno);
}
}