drivers/media/usb/go7007/go7007-loader.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (C) 2008 Sensoray Company Inc.
   4  */
   5
   6 #include <linux/module.h>
   7 #include <linux/slab.h>
   8 #include <linux/usb.h>
   9 #include <linux/firmware.h>
  10 #include <cypress_firmware.h>
  11
  12 struct fw_config {
  13         u16 vendor;
  14         u16 product;
  15         const char * const fw_name1;
  16         const char * const fw_name2;
  17 };
  18
  19 static struct fw_config fw_configs[] = {
  20         { 0x1943, 0xa250, "go7007/s2250-1.fw", "go7007/s2250-2.fw" },
  21         { 0x093b, 0xa002, "go7007/px-m402u.fw", NULL },
  22         { 0x093b, 0xa004, "go7007/px-tv402u.fw", NULL },
  23         { 0x0eb1, 0x6666, "go7007/lr192.fw", NULL },
  24         { 0x0eb1, 0x6668, "go7007/wis-startrek.fw", NULL },
  25         { 0, 0, NULL, NULL }
  26 };
  27 MODULE_FIRMWARE("go7007/s2250-1.fw");
  28 MODULE_FIRMWARE("go7007/s2250-2.fw");
  29 MODULE_FIRMWARE("go7007/px-m402u.fw");
  30 MODULE_FIRMWARE("go7007/px-tv402u.fw");
  31 MODULE_FIRMWARE("go7007/lr192.fw");
  32 MODULE_FIRMWARE("go7007/wis-startrek.fw");
  33
  34 static int go7007_loader_probe(struct usb_interface *interface,
  35                                 const struct usb_device_id *id)
  36 {
  37         struct usb_device *usbdev;
  38         const struct firmware *fw;
  39         u16 vendor, product;
  40         const char *fw1, *fw2;
  41         int ret;
  42         int i;
  43
  44         usbdev = usb_get_dev(interface_to_usbdev(interface));
  45         if (!usbdev)
  46                 goto failed2;
  47
  48         if (usbdev->descriptor.bNumConfigurations != 1) {
  49                 dev_err(&interface->dev, "can't handle multiple config\n");
  50                 goto failed2;
  51         }
  52
  53         vendor = le16_to_cpu(usbdev->descriptor.idVendor);
  54         product = le16_to_cpu(usbdev->descriptor.idProduct);
  55
  56         for (i = 0; fw_configs[i].fw_name1; i++)
  57                 if (fw_configs[i].vendor == vendor &&
  58                     fw_configs[i].product == product)
  59                         break;
  60
  61         /* Should never happen */
  62         if (fw_configs[i].fw_name1 == NULL)
  63                 goto failed2;
  64
  65         fw1 = fw_configs[i].fw_name1;
  66         fw2 = fw_configs[i].fw_name2;
  67
  68         dev_info(&interface->dev, "loading firmware %s\n", fw1);
  69
  70         if (request_firmware(&fw, fw1, &usbdev->dev)) {
  71                 dev_err(&interface->dev,
  72                         "unable to load firmware from file \"%s\"\n", fw1);
  73                 goto failed2;
  74         }
  75         ret = cypress_load_firmware(usbdev, fw, CYPRESS_FX2);
  76         release_firmware(fw);
  77         if (0 != ret) {
  78                 dev_err(&interface->dev, "loader download failed\n");
  79                 goto failed2;
  80         }
  81
  82         if (fw2 == NULL)
  83                 return 0;
  84
  85         if (request_firmware(&fw, fw2, &usbdev->dev)) {
  86                 dev_err(&interface->dev,
  87                         "unable to load firmware from file \"%s\"\n", fw2);
  88                 goto failed2;
  89         }
  90         ret = cypress_load_firmware(usbdev, fw, CYPRESS_FX2);
  91         release_firmware(fw);
  92         if (0 != ret) {
  93                 dev_err(&interface->dev, "firmware download failed\n");
  94                 goto failed2;
  95         }
  96         return 0;
  97
  98 failed2:
  99         usb_put_dev(usbdev);
 100         dev_err(&interface->dev, "probe failed\n");
 101         return -ENODEV;
 102 }
 103
 104 static void go7007_loader_disconnect(struct usb_interface *interface)
 105 {
 106         dev_info(&interface->dev, "disconnect\n");
 107         usb_put_dev(interface_to_usbdev(interface));
 108         usb_set_intfdata(interface, NULL);
 109 }
 110
 111 static const struct usb_device_id go7007_loader_ids[] = {
 112         { USB_DEVICE(0x1943, 0xa250) },
 113         { USB_DEVICE(0x093b, 0xa002) },
 114         { USB_DEVICE(0x093b, 0xa004) },
 115         { USB_DEVICE(0x0eb1, 0x6666) },
 116         { USB_DEVICE(0x0eb1, 0x6668) },
 117         {}                          /* Terminating entry */
 118 };
 119
 120 MODULE_DEVICE_TABLE(usb, go7007_loader_ids);
 121
 122 static struct usb_driver go7007_loader_driver = {
 123         .name           = "go7007-loader",
 124         .probe          = go7007_loader_probe,
 125         .disconnect     = go7007_loader_disconnect,
 126         .id_table       = go7007_loader_ids,
 127 };
 128
 129 module_usb_driver(go7007_loader_driver);
 130
 131 MODULE_AUTHOR("");
 132 MODULE_DESCRIPTION("firmware loader for go7007-usb");
 133 MODULE_LICENSE("GPL v2");