Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / drivers / usb / host / ehci-pci.c

diff --git a/qemu/roms/u-boot/drivers/usb/host/ehci-pci.c b/qemu/roms/u-boot/drivers/usb/host/ehci-pci.c
new file mode 100644 (file)
index 0000000..991b199
--- /dev/null
+++ b/qemu/roms/u-boot/drivers/usb/host/ehci-pci.c
@@ -0,0 +1,138 @@
+/*-
+ * Copyright (c) 2007-2008, Juniper Networks, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <pci.h>
+#include <usb.h>
+
+#include "ehci.h"
+
+#ifdef CONFIG_PCI_EHCI_DEVICE
+static struct pci_device_id ehci_pci_ids[] = {
+       /* Please add supported PCI EHCI controller ids here */
+       {0x1033, 0x00E0},       /* NEC */
+       {0x10B9, 0x5239},       /* ULI1575 PCI EHCI module ids */
+       {0x12D8, 0x400F},       /* Pericom */
+       {0, 0}
+};
+#else
+static pci_dev_t ehci_find_class(int index)
+{
+       int bus;
+       int devnum;
+       pci_dev_t bdf;
+       uint32_t class;
+
+       for (bus = 0; bus <= pci_last_busno(); bus++) {
+               for (devnum = 0; devnum < PCI_MAX_PCI_DEVICES-1; devnum++) {
+                       pci_read_config_dword(PCI_BDF(bus, devnum, 0),
+                                             PCI_CLASS_REVISION, &class);
+                       if (class >> 16 == 0xffff)
+                               continue;
+
+                       for (bdf = PCI_BDF(bus, devnum, 0);
+                                       bdf <= PCI_BDF(bus, devnum,
+                                               PCI_MAX_PCI_FUNCTIONS - 1);
+                                       bdf += PCI_BDF(0, 0, 1)) {
+                               pci_read_config_dword(bdf, PCI_CLASS_REVISION,
+                                                     &class);
+                               class >>= 8;
+                               /*
+                                * Here be dragons! In case we have multiple
+                                * PCI EHCI controllers, this function will
+                                * be called multiple times as well. This
+                                * function will scan the PCI busses, always
+                                * starting from bus 0, device 0, function 0,
+                                * until it finds an USB controller. The USB
+                                * stack gives us an 'index' of a controller
+                                * that is currently being registered, which
+                                * is a number, starting from 0 and growing
+                                * in ascending order as controllers are added.
+                                * To avoid probing the same controller in tne
+                                * subsequent runs of this function, we will
+                                * skip 'index - 1' detected controllers and
+                                * report the index'th controller.
+                                */
+                               if (class != PCI_CLASS_SERIAL_USB_EHCI)
+                                       continue;
+                               if (index) {
+                                       index--;
+                                       continue;
+                               }
+                               /* Return index'th controller. */
+                               return bdf;
+                       }
+               }
+       }
+
+       return -ENODEV;
+}
+#endif
+
+/*
+ * Create the appropriate control structures to manage
+ * a new EHCI host controller.
+ */
+int ehci_hcd_init(int index, enum usb_init_type init,
+               struct ehci_hccr **ret_hccr, struct ehci_hcor **ret_hcor)
+{
+       pci_dev_t pdev;
+       uint32_t cmd;
+       struct ehci_hccr *hccr;
+       struct ehci_hcor *hcor;
+
+#ifdef CONFIG_PCI_EHCI_DEVICE
+       pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVICE);
+#else
+       pdev = ehci_find_class(index);
+#endif
+       if (pdev < 0) {
+               printf("EHCI host controller not found\n");
+               return -1;
+       }
+
+       hccr = (struct ehci_hccr *)pci_map_bar(pdev,
+                       PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
+       hcor = (struct ehci_hcor *)((uint32_t) hccr +
+                       HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
+
+       debug("EHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
+                       (uint32_t)hccr, (uint32_t)hcor,
+                       (uint32_t)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
+
+       *ret_hccr = hccr;
+       *ret_hcor = hcor;
+
+       /* enable busmaster */
+       pci_read_config_dword(pdev, PCI_COMMAND, &cmd);
+       cmd |= PCI_COMMAND_MASTER;
+       pci_write_config_dword(pdev, PCI_COMMAND, cmd);
+       return 0;
+}
+
+/*
+ * Destroy the appropriate control structures corresponding
+ * the the EHCI host controller.
+ */
+int ehci_hcd_stop(int index)
+{
+       return 0;
+}