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| author | Nico Huber <nico.huber@secunet.com> | 2012-05-23 09:21:54 +0200 |
|---|---|---|
| committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2012-06-07 23:14:18 +0200 |
| commit | 1ab6075320f5dc10afd934b100c8116a88ac12fc (patch) | |
| tree | 688f9e3017a913aa7cb9c14faf46373dcc938a4a /payloads/libpayload/drivers/usb/usb.c | |
| parent | d5d024f3e5f0eb88e459b3a449337c3cd2a49104 (diff) | |
| download | coreboot-1ab6075320f5dc10afd934b100c8116a88ac12fc.tar.xz | |
libpayload: Add support for split transactions in EHCI
With split transactions, the EHCI host controller can handle full- and
low-speed devices on hubs in high-speed mode. This adds support for split
transactions for control and bulk transfers.
Change-Id: I30fa1ce25757f33b1e6ed34207949c9255f05d49
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/1081
Tested-by: build bot (Jenkins)
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.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/payloads/libpayload/drivers/usb/usb.c b/payloads/libpayload/drivers/usb/usb.c index 1e8f24814c..07735a2097 100644 --- a/payloads/libpayload/drivers/usb/usb.c +++ b/payloads/libpayload/drivers/usb/usb.c @@ -245,8 +245,8 @@ get_free_address (hci_t *controller) return -1; // no free address } -int -set_address (hci_t *controller, int speed) +static int +set_address (hci_t *controller, int speed, int hubport, int hubaddr) { int adr = get_free_address (controller); // address to set dev_req_t dr; @@ -266,6 +266,8 @@ set_address (hci_t *controller, int speed) usbdev_t *dev = controller->devices[adr]; // dummy values for registering the address dev->address = 0; + dev->hub = hubaddr; + dev->port = hubport; dev->speed = speed; dev->endpoints[0].dev = dev; dev->endpoints[0].endpoint = 0; @@ -469,14 +471,10 @@ usb_attach_device(hci_t *controller, int hubaddress, int port, int speed) { static const char* speeds[] = { "full", "low", "high" }; debug ("%sspeed device\n", (speed <= 2) ? speeds[speed] : "invalid value - no"); - int newdev = set_address (controller, speed); + int newdev = set_address (controller, speed, port, hubaddress); if (newdev == -1) return -1; usbdev_t *newdev_t = controller->devices[newdev]; - - newdev_t->address = newdev; - newdev_t->hub = hubaddress; - newdev_t->port = port; // determine responsible driver - current done in set_address newdev_t->init (newdev_t); return newdev; |