usb/go7007/go7007-loader.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * Copyright (C) 2008 Sensoray Company Inc.
0004  */
0005
0006 #include <linux/module.h>
0007 #include <linux/slab.h>
0008 #include <linux/usb.h>
0009 #include <linux/firmware.h>
0010 #include <cypress_firmware.h>
0011
0012 struct fw_config {
0013     u16 vendor;
0014     u16 product;
0015     const char * const fw_name1;
0016     const char * const fw_name2;
0017 };
0018
0019 static struct fw_config fw_configs[] = {
0020     { 0x1943, 0xa250, "go7007/s2250-1.fw", "go7007/s2250-2.fw" },
0021     { 0x093b, 0xa002, "go7007/px-m402u.fw", NULL },
0022     { 0x093b, 0xa004, "go7007/px-tv402u.fw", NULL },
0023     { 0x0eb1, 0x6666, "go7007/lr192.fw", NULL },
0024     { 0x0eb1, 0x6668, "go7007/wis-startrek.fw", NULL },
0025     { 0, 0, NULL, NULL }
0026 };
0027 MODULE_FIRMWARE("go7007/s2250-1.fw");
0028 MODULE_FIRMWARE("go7007/s2250-2.fw");
0029 MODULE_FIRMWARE("go7007/px-m402u.fw");
0030 MODULE_FIRMWARE("go7007/px-tv402u.fw");
0031 MODULE_FIRMWARE("go7007/lr192.fw");
0032 MODULE_FIRMWARE("go7007/wis-startrek.fw");
0033
0034 static int go7007_loader_probe(struct usb_interface *interface,
0035                 const struct usb_device_id *id)
0036 {
0037     struct usb_device *usbdev;
0038     const struct firmware *fw;
0039     u16 vendor, product;
0040     const char *fw1, *fw2;
0041     int ret;
0042     int i;
0043
0044     usbdev = usb_get_dev(interface_to_usbdev(interface));
0045     if (!usbdev)
0046         goto failed2;
0047
0048     if (usbdev->descriptor.bNumConfigurations != 1) {
0049         dev_err(&interface->dev, "can't handle multiple config\n");
0050         goto failed2;
0051     }
0052
0053     vendor = le16_to_cpu(usbdev->descriptor.idVendor);
0054     product = le16_to_cpu(usbdev->descriptor.idProduct);
0055
0056     for (i = 0; fw_configs[i].fw_name1; i++)
0057         if (fw_configs[i].vendor == vendor &&
0058             fw_configs[i].product == product)
0059             break;
0060
0061     /* Should never happen */
0062     if (fw_configs[i].fw_name1 == NULL)
0063         goto failed2;
0064
0065     fw1 = fw_configs[i].fw_name1;
0066     fw2 = fw_configs[i].fw_name2;
0067
0068     dev_info(&interface->dev, "loading firmware %s\n", fw1);
0069
0070     if (request_firmware(&fw, fw1, &usbdev->dev)) {
0071         dev_err(&interface->dev,
0072             "unable to load firmware from file \"%s\"\n", fw1);
0073         goto failed2;
0074     }
0075     ret = cypress_load_firmware(usbdev, fw, CYPRESS_FX2);
0076     release_firmware(fw);
0077     if (0 != ret) {
0078         dev_err(&interface->dev, "loader download failed\n");
0079         goto failed2;
0080     }
0081
0082     if (fw2 == NULL)
0083         return 0;
0084
0085     if (request_firmware(&fw, fw2, &usbdev->dev)) {
0086         dev_err(&interface->dev,
0087             "unable to load firmware from file \"%s\"\n", fw2);
0088         goto failed2;
0089     }
0090     ret = cypress_load_firmware(usbdev, fw, CYPRESS_FX2);
0091     release_firmware(fw);
0092     if (0 != ret) {
0093         dev_err(&interface->dev, "firmware download failed\n");
0094         goto failed2;
0095     }
0096     return 0;
0097
0098 failed2:
0099     usb_put_dev(usbdev);
0100     dev_err(&interface->dev, "probe failed\n");
0101     return -ENODEV;
0102 }
0103
0104 static void go7007_loader_disconnect(struct usb_interface *interface)
0105 {
0106     dev_info(&interface->dev, "disconnect\n");
0107     usb_put_dev(interface_to_usbdev(interface));
0108     usb_set_intfdata(interface, NULL);
0109 }
0110
0111 static const struct usb_device_id go7007_loader_ids[] = {
0112     { USB_DEVICE(0x1943, 0xa250) },
0113     { USB_DEVICE(0x093b, 0xa002) },
0114     { USB_DEVICE(0x093b, 0xa004) },
0115     { USB_DEVICE(0x0eb1, 0x6666) },
0116     { USB_DEVICE(0x0eb1, 0x6668) },
0117     {}                          /* Terminating entry */
0118 };
0119
0120 MODULE_DEVICE_TABLE(usb, go7007_loader_ids);
0121
0122 static struct usb_driver go7007_loader_driver = {
0123     .name       = "go7007-loader",
0124     .probe      = go7007_loader_probe,
0125     .disconnect = go7007_loader_disconnect,
0126     .id_table   = go7007_loader_ids,
0127 };
0128
0129 module_usb_driver(go7007_loader_driver);
0130
0131 MODULE_AUTHOR("");
0132 MODULE_DESCRIPTION("firmware loader for go7007-usb");
0133 MODULE_LICENSE("GPL v2");