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
12struct fw_config {
13 u16 vendor;
14 u16 product;
15 const char * const fw_name1;
16 const char * const fw_name2;
17};
18
19static 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};
27MODULE_FIRMWARE("go7007/s2250-1.fw");
28MODULE_FIRMWARE("go7007/s2250-2.fw");
29MODULE_FIRMWARE("go7007/px-m402u.fw");
30MODULE_FIRMWARE("go7007/px-tv402u.fw");
31MODULE_FIRMWARE("go7007/lr192.fw");
32MODULE_FIRMWARE("go7007/wis-startrek.fw");
33
34static 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: &fw, name: fw1, device: &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: &fw, name: fw2, device: &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
98failed2:
99 usb_put_dev(dev: usbdev);
100 dev_err(&interface->dev, "probe failed\n");
101 return -ENODEV;
102}
103
104static 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(intf: interface, NULL);
109}
110
111static 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
120MODULE_DEVICE_TABLE(usb, go7007_loader_ids);
121
122static 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
129module_usb_driver(go7007_loader_driver);
130
131MODULE_AUTHOR("");
132MODULE_DESCRIPTION("firmware loader for go7007-usb");
133MODULE_LICENSE("GPL v2");
134

source code of linux/drivers/media/usb/go7007/go7007-loader.c