2e768e7f17
We have fatal(), which is just as good. Coccinelle script: @@ expression E; @@ -usb_fatal(E) +fatal(E) Change-Id: Iabecbcc7d068cc0f82687bf51d89c2626642cd86 Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com> Reviewed-on: http://review.coreboot.org/395 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: build bot (Jenkins)
134 lines
3.7 KiB
C
134 lines
3.7 KiB
C
/*
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* This file is part of the libpayload project.
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*
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* Copyright (C) 2010 Patrick Georgi
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#define USB_DEBUG
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#include <libpayload.h>
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#include "xhci_private.h"
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#include "xhci.h"
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typedef struct {
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int numports;
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int *port;
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} rh_inst_t;
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#define RH_INST(dev) ((rh_inst_t*)(dev)->data)
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static void
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xhci_rh_enable_port (usbdev_t *dev, int port)
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{
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// FIXME: check power situation?
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// enable slot
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// attach device context to slot
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// address device
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}
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/* disable root hub */
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static void
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xhci_rh_disable_port (usbdev_t *dev, int port)
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{
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}
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static void
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xhci_rh_scanport (usbdev_t *dev, int port)
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{
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// clear CSC
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int val = XHCI_INST (dev->controller)->opreg->prs[port].portsc;
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val &= PORTSC_RW_MASK;
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val |= PORTSC_CSC;
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XHCI_INST (dev->controller)->opreg->prs[port].portsc = val;
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debug("device attach status on port %x: %x\n", port, XHCI_INST (dev->controller)->opreg->prs[port].portsc & PORTSC_CCS);
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}
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static int
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xhci_rh_report_port_changes (usbdev_t *dev)
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{
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int i;
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// no change
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if (!(XHCI_INST (dev->controller)->opreg->usbsts & USBSTS_PCD))
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return -1;
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for (i = 0; i < RH_INST (dev)->numports; i++) {
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if (XHCI_INST (dev->controller)->opreg->prs[i].portsc & PORTSC_CSC) {
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debug("found connect status change on port %d\n", i);
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return i;
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}
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}
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return -1; // shouldn't ever happen
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}
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static void
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xhci_rh_destroy (usbdev_t *dev)
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{
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int i;
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for (i = 0; i < RH_INST (dev)->numports; i++)
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xhci_rh_disable_port (dev, i);
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free (RH_INST (dev));
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}
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static void
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xhci_rh_poll (usbdev_t *dev)
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{
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int port;
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while ((port = xhci_rh_report_port_changes (dev)) != -1)
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xhci_rh_scanport (dev, port);
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}
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void
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xhci_rh_init (usbdev_t *dev)
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{
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int i;
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dev->destroy = xhci_rh_destroy;
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dev->poll = xhci_rh_poll;
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dev->data = malloc (sizeof (rh_inst_t));
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if (!dev->data)
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fatal("Not enough memory for XHCI RH.\n");
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RH_INST (dev)->numports = XHCI_INST (dev->controller)->capreg->MaxPorts;
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RH_INST (dev)->port = malloc(sizeof(int) * RH_INST (dev)->numports);
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debug("%d ports registered\n", RH_INST (dev)->numports);
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for (i = 0; i < RH_INST (dev)->numports; i++) {
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xhci_rh_enable_port (dev, i);
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RH_INST (dev)->port[i] = -1;
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}
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/* we can set them here because a root hub _really_ shouldn't
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appear elsewhere */
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dev->address = 0;
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dev->hub = -1;
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dev->port = -1;
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debug("rh init done\n");
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}
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