wusb: add the Wire Adapter (WA) core

Common code for supporting Host Wire Adapters and Device Wire Adapters.

Signed-off-by: David Vrabel <david.vrabel@csr.com>

1 files changed, 95 insertions, 0 deletions

diff --git a/drivers/usb/wusbcore/wa-hc.c b/drivers/usb/wusbcore/wa-hc.c
new file mode 100644
index 00000000000..9d04722415b
--- /dev/null
+++ b/drivers/usb/wusbcore/wa-hc.c
@@ -0,0 +1,95 @@
+/*
+ * Wire Adapter Host Controller Driver
+ * Common items to HWA and DWA based HCDs
+ *
+ * Copyright (C) 2005-2006 Intel Corporation
+ * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ *
+ *
+ * FIXME: docs
+ */
+#include "wusbhc.h"
+#include "wa-hc.h"
+
+/**
+ * Assumes
+ *
+ * wa->usb_dev and wa->usb_iface initialized and refcounted,
+ * wa->wa_descr initialized.
+ */
+int wa_create(struct wahc *wa, struct usb_interface *iface)
+{
+        int result;
+        struct device *dev = &iface->dev;
+
+        result = wa_rpipes_create(wa);
+        if (result < 0)
+                goto error_rpipes_create;
+        /* Fill up Data Transfer EP pointers */
+        wa->dti_epd = &iface->cur_altsetting->endpoint[1].desc;
+        wa->dto_epd = &iface->cur_altsetting->endpoint[2].desc;
+        wa->xfer_result_size = le16_to_cpu(wa->dti_epd->wMaxPacketSize);
+        wa->xfer_result = kmalloc(wa->xfer_result_size, GFP_KERNEL);
+        if (wa->xfer_result == NULL)
+                goto error_xfer_result_alloc;
+        result = wa_nep_create(wa, iface);
+        if (result < 0) {
+                dev_err(dev, "WA-CDS: can't initialize notif endpoint: %d\n",
+                        result);
+                goto error_nep_create;
+        }
+        return 0;
+
+error_nep_create:
+        kfree(wa->xfer_result);
+error_xfer_result_alloc:
+        wa_rpipes_destroy(wa);
+error_rpipes_create:
+        return result;
+}
+EXPORT_SYMBOL_GPL(wa_create);
+
+
+void __wa_destroy(struct wahc *wa)
+{
+        if (wa->dti_urb) {
+                usb_kill_urb(wa->dti_urb);
+                usb_put_urb(wa->dti_urb);
+                usb_kill_urb(wa->buf_in_urb);
+                usb_put_urb(wa->buf_in_urb);
+        }
+        kfree(wa->xfer_result);
+        wa_nep_destroy(wa);
+        wa_rpipes_destroy(wa);
+}
+EXPORT_SYMBOL_GPL(__wa_destroy);
+
+/**
+ * wa_reset_all - reset the WA device
+ * @wa: the WA to be reset
+ *
+ * For HWAs the radio controller and all other PALs are also reset.
+ */
+void wa_reset_all(struct wahc *wa)
+{
+        /* FIXME: assuming HWA. */
+        wusbhc_reset_all(wa->wusb);
+}
+
+MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>");
+MODULE_DESCRIPTION("Wireless USB Wire Adapter core");
+MODULE_LICENSE("GPL");