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"); 134