Initial file dump from open source releaseHEADmaster

1 files changed, 263 insertions, 0 deletions

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_usb.c b/drivers/staging/ft1000/ft1000-usb/ft1000_usb.c
new file mode 100644
index 00000000..614db55a
--- /dev/null
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_usb.c
@@ -0,0 +1,263 @@
+/*=====================================================
+ * CopyRight (C) 2007 Qualcomm Inc. All Rights Reserved.
+ *
+ *
+ * This file is part of Express Card USB Driver
+ *
+ * $Id:
+ *====================================================
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/firmware.h>
+#include "ft1000_usb.h"
+
+#include <linux/kthread.h>
+
+MODULE_DESCRIPTION("FT1000 EXPRESS CARD DRIVER");
+MODULE_LICENSE("Dual MPL/GPL");
+MODULE_SUPPORTED_DEVICE("QFT FT1000 Express Cards");
+
+void *pFileStart;
+size_t FileLength;
+
+#define VENDOR_ID 0x1291	/* Qualcomm vendor id */
+#define PRODUCT_ID 0x11		/* fake product id */
+
+/* table of devices that work with this driver */
+static struct usb_device_id id_table[] = {
+	{USB_DEVICE(VENDOR_ID, PRODUCT_ID)},
+	{},
+};
+
+MODULE_DEVICE_TABLE(usb, id_table);
+
+static bool gPollingfailed = FALSE;
+static int ft1000_poll_thread(void *arg)
+{
+	int ret;
+
+	while (!kthread_should_stop()) {
+		msleep(10);
+		if (!gPollingfailed) {
+			ret = ft1000_poll(arg);
+			if (ret != STATUS_SUCCESS) {
+				DEBUG("ft1000_poll_thread: polling failed\n");
+				gPollingfailed = TRUE;
+			}
+		}
+	}
+	return STATUS_SUCCESS;
+}
+
+static int ft1000_probe(struct usb_interface *interface,
+			const struct usb_device_id *id)
+{
+	struct usb_host_interface *iface_desc;
+	struct usb_endpoint_descriptor *endpoint;
+	struct usb_device *dev;
+	unsigned numaltsetting;
+	int i, ret = 0, size;
+
+	struct ft1000_usb *ft1000dev;
+	struct ft1000_info *pft1000info = NULL;
+	const struct firmware *dsp_fw;
+
+	ft1000dev = kzalloc(sizeof(struct ft1000_usb), GFP_KERNEL);
+	if (!ft1000dev)
+		return -ENOMEM;
+
+	dev = interface_to_usbdev(interface);
+	DEBUG("ft1000_probe: usb device descriptor info:\n");
+	DEBUG("ft1000_probe: number of configuration is %d\n",
+	      dev->descriptor.bNumConfigurations);
+
+	ft1000dev->dev = dev;
+	ft1000dev->status = 0;
+	ft1000dev->net = NULL;
+	ft1000dev->tx_urb = usb_alloc_urb(0, GFP_ATOMIC);
+	ft1000dev->rx_urb = usb_alloc_urb(0, GFP_ATOMIC);
+
+	DEBUG("ft1000_probe is called\n");
+	numaltsetting = interface->num_altsetting;
+	DEBUG("ft1000_probe: number of alt settings is :%d\n", numaltsetting);
+	iface_desc = interface->cur_altsetting;
+	DEBUG("ft1000_probe: number of endpoints is %d\n",
+	      iface_desc->desc.bNumEndpoints);
+	DEBUG("ft1000_probe: descriptor type is %d\n",
+	      iface_desc->desc.bDescriptorType);
+	DEBUG("ft1000_probe: interface number is %d\n",
+	      iface_desc->desc.bInterfaceNumber);
+	DEBUG("ft1000_probe: alternatesetting is %d\n",
+	      iface_desc->desc.bAlternateSetting);
+	DEBUG("ft1000_probe: interface class is %d\n",
+	      iface_desc->desc.bInterfaceClass);
+	DEBUG("ft1000_probe: control endpoint info:\n");
+	DEBUG("ft1000_probe: descriptor0 type -- %d\n",
+	      iface_desc->endpoint[0].desc.bmAttributes);
+	DEBUG("ft1000_probe: descriptor1 type -- %d\n",
+	      iface_desc->endpoint[1].desc.bmAttributes);
+	DEBUG("ft1000_probe: descriptor2 type -- %d\n",
+	      iface_desc->endpoint[2].desc.bmAttributes);
+
+	for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
+		endpoint =
+		    (struct usb_endpoint_descriptor *)&iface_desc->
+		    endpoint[i].desc;
+		DEBUG("endpoint %d\n", i);
+		DEBUG("bEndpointAddress=%x, bmAttributes=%x\n",
+		      endpoint->bEndpointAddress, endpoint->bmAttributes);
+		if ((endpoint->bEndpointAddress & USB_DIR_IN)
+		    && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
+			USB_ENDPOINT_XFER_BULK)) {
+			ft1000dev->bulk_in_endpointAddr =
+			    endpoint->bEndpointAddress;
+			DEBUG("ft1000_probe: in: %d\n",
+			      endpoint->bEndpointAddress);
+		}
+
+		if (!(endpoint->bEndpointAddress & USB_DIR_IN)
+		    && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
+			USB_ENDPOINT_XFER_BULK)) {
+			ft1000dev->bulk_out_endpointAddr =
+			    endpoint->bEndpointAddress;
+			DEBUG("ft1000_probe: out: %d\n",
+			      endpoint->bEndpointAddress);
+		}
+	}
+
+	DEBUG("bulk_in=%d, bulk_out=%d\n", ft1000dev->bulk_in_endpointAddr,
+	      ft1000dev->bulk_out_endpointAddr);
+
+	ret = request_firmware(&dsp_fw, "ft3000.img", &dev->dev);
+	if (ret < 0) {
+		pr_err("Error request_firmware().\n");
+		goto err_fw;
+	}
+
+	size = max_t(uint, dsp_fw->size, 4096);
+	pFileStart = kmalloc(size, GFP_KERNEL);
+
+	if (!pFileStart) {
+		release_firmware(dsp_fw);
+		ret = -ENOMEM;
+		goto err_fw;
+	}
+
+	memcpy(pFileStart, dsp_fw->data, dsp_fw->size);
+	FileLength = dsp_fw->size;
+	release_firmware(dsp_fw);
+
+	DEBUG("ft1000_probe: start downloading dsp image...\n");
+
+	ret = init_ft1000_netdev(ft1000dev);
+	if (ret)
+		goto err_load;
+
+	pft1000info = netdev_priv(ft1000dev->net);
+
+	DEBUG("In probe: pft1000info=%p\n", pft1000info);
+	ret = dsp_reload(ft1000dev);
+	if (ret) {
+		pr_err("Problem with DSP image loading\n");
+		goto err_load;
+	}
+
+	gPollingfailed = FALSE;
+	ft1000dev->pPollThread =
+	    kthread_run(ft1000_poll_thread, ft1000dev, "ft1000_poll");
+
+	if (IS_ERR(ft1000dev->pPollThread)) {
+		ret = PTR_ERR(ft1000dev->pPollThread);
+		goto err_load;
+	}
+
+	msleep(500);
+
+	while (!pft1000info->CardReady) {
+		if (gPollingfailed) {
+			ret = -EIO;
+			goto err_thread;
+		}
+		msleep(100);
+		DEBUG("ft1000_probe::Waiting for Card Ready\n");
+	}
+
+	DEBUG("ft1000_probe::Card Ready!!!! Registering network device\n");
+
+	ret = reg_ft1000_netdev(ft1000dev, interface);
+	if (ret)
+		goto err_thread;
+
+	ret = ft1000_init_proc(ft1000dev->net);
+	if (ret)
+		goto err_proc;
+
+	ft1000dev->NetDevRegDone = 1;
+
+	return 0;
+
+err_proc:
+	unregister_netdev(ft1000dev->net);
+	free_netdev(ft1000dev->net);
+err_thread:
+	kthread_stop(ft1000dev->pPollThread);
+err_load:
+	kfree(pFileStart);
+err_fw:
+	kfree(ft1000dev);
+	return ret;
+}
+
+static void ft1000_disconnect(struct usb_interface *interface)
+{
+	struct ft1000_info *pft1000info;
+	struct ft1000_usb *ft1000dev;
+
+	DEBUG("ft1000_disconnect is called\n");
+
+	pft1000info = (struct ft1000_info *) usb_get_intfdata(interface);
+	DEBUG("In disconnect pft1000info=%p\n", pft1000info);
+
+	if (pft1000info) {
+		ft1000dev = pft1000info->priv;
+		ft1000_cleanup_proc(pft1000info);
+		if (ft1000dev->pPollThread)
+			kthread_stop(ft1000dev->pPollThread);
+
+		DEBUG("ft1000_disconnect: threads are terminated\n");
+
+		if (ft1000dev->net) {
+			DEBUG("ft1000_disconnect: destroy char driver\n");
+			ft1000_destroy_dev(ft1000dev->net);
+			unregister_netdev(ft1000dev->net);
+			DEBUG
+			    ("ft1000_disconnect: network device unregistered\n");
+			free_netdev(ft1000dev->net);
+
+		}
+
+		usb_free_urb(ft1000dev->rx_urb);
+		usb_free_urb(ft1000dev->tx_urb);
+
+		DEBUG("ft1000_disconnect: urb freed\n");
+
+		kfree(ft1000dev);
+	}
+	kfree(pFileStart);
+
+	return;
+}
+
+static struct usb_driver ft1000_usb_driver = {
+	.name = "ft1000usb",
+	.probe = ft1000_probe,
+	.disconnect = ft1000_disconnect,
+	.id_table = id_table,
+};
+
+module_usb_driver(ft1000_usb_driver);