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, 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
98failed2:
99	usb_put_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(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