1/*
2 * Copyright (C) 2008 Sensoray Company Inc.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License (Version 2) as
6 * published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11 * GNU General Public License for more details.
12 */
13
14#include <linux/module.h>
15#include <linux/slab.h>
16#include <linux/usb.h>
17#include <linux/firmware.h>
18#include <cypress_firmware.h>
19
20struct fw_config {
21	u16 vendor;
22	u16 product;
23	const char * const fw_name1;
24	const char * const fw_name2;
25};
26
27static struct fw_config fw_configs[] = {
28	{ 0x1943, 0xa250, "go7007/s2250-1.fw", "go7007/s2250-2.fw" },
29	{ 0x093b, 0xa002, "go7007/px-m402u.fw", NULL },
30	{ 0x093b, 0xa004, "go7007/px-tv402u.fw", NULL },
31	{ 0x0eb1, 0x6666, "go7007/lr192.fw", NULL },
32	{ 0x0eb1, 0x6668, "go7007/wis-startrek.fw", NULL },
33	{ 0, 0, NULL, NULL }
34};
35MODULE_FIRMWARE("go7007/s2250-1.fw");
36MODULE_FIRMWARE("go7007/s2250-2.fw");
37MODULE_FIRMWARE("go7007/px-m402u.fw");
38MODULE_FIRMWARE("go7007/px-tv402u.fw");
39MODULE_FIRMWARE("go7007/lr192.fw");
40MODULE_FIRMWARE("go7007/wis-startrek.fw");
41
42static int go7007_loader_probe(struct usb_interface *interface,
43				const struct usb_device_id *id)
44{
45	struct usb_device *usbdev;
46	const struct firmware *fw;
47	u16 vendor, product;
48	const char *fw1, *fw2;
49	int ret;
50	int i;
51
52	usbdev = usb_get_dev(interface_to_usbdev(interface));
53	if (!usbdev)
54		goto failed2;
55
56	if (usbdev->descriptor.bNumConfigurations != 1) {
57		dev_err(&interface->dev, "can't handle multiple config\n");
58		goto failed2;
59	}
60
61	vendor = le16_to_cpu(usbdev->descriptor.idVendor);
62	product = le16_to_cpu(usbdev->descriptor.idProduct);
63
64	for (i = 0; fw_configs[i].fw_name1; i++)
65		if (fw_configs[i].vendor == vendor &&
66		    fw_configs[i].product == product)
67			break;
68
69	/* Should never happen */
70	if (fw_configs[i].fw_name1 == NULL)
71		goto failed2;
72
73	fw1 = fw_configs[i].fw_name1;
74	fw2 = fw_configs[i].fw_name2;
75
76	dev_info(&interface->dev, "loading firmware %s\n", fw1);
77
78	if (request_firmware(&fw, fw1, &usbdev->dev)) {
79		dev_err(&interface->dev,
80			"unable to load firmware from file \"%s\"\n", fw1);
81		goto failed2;
82	}
83	ret = cypress_load_firmware(usbdev, fw, CYPRESS_FX2);
84	release_firmware(fw);
85	if (0 != ret) {
86		dev_err(&interface->dev, "loader download failed\n");
87		goto failed2;
88	}
89
90	if (fw2 == NULL)
91		return 0;
92
93	if (request_firmware(&fw, fw2, &usbdev->dev)) {
94		dev_err(&interface->dev,
95			"unable to load firmware from file \"%s\"\n", fw2);
96		goto failed2;
97	}
98	ret = cypress_load_firmware(usbdev, fw, CYPRESS_FX2);
99	release_firmware(fw);
100	if (0 != ret) {
101		dev_err(&interface->dev, "firmware download failed\n");
102		goto failed2;
103	}
104	return 0;
105
106failed2:
107	usb_put_dev(usbdev);
108	dev_err(&interface->dev, "probe failed\n");
109	return -ENODEV;
110}
111
112static void go7007_loader_disconnect(struct usb_interface *interface)
113{
114	dev_info(&interface->dev, "disconnect\n");
115	usb_put_dev(interface_to_usbdev(interface));
116	usb_set_intfdata(interface, NULL);
117}
118
119static const struct usb_device_id go7007_loader_ids[] = {
120	{ USB_DEVICE(0x1943, 0xa250) },
121	{ USB_DEVICE(0x093b, 0xa002) },
122	{ USB_DEVICE(0x093b, 0xa004) },
123	{ USB_DEVICE(0x0eb1, 0x6666) },
124	{ USB_DEVICE(0x0eb1, 0x6668) },
125	{}                          /* Terminating entry */
126};
127
128MODULE_DEVICE_TABLE(usb, go7007_loader_ids);
129
130static struct usb_driver go7007_loader_driver = {
131	.name		= "go7007-loader",
132	.probe		= go7007_loader_probe,
133	.disconnect	= go7007_loader_disconnect,
134	.id_table	= go7007_loader_ids,
135};
136
137module_usb_driver(go7007_loader_driver);
138
139MODULE_AUTHOR("");
140MODULE_DESCRIPTION("firmware loader for go7007-usb");
141MODULE_LICENSE("GPL v2");
142