[media] staging: as102: Properly handle multiple product names

Properly handle the case where the driver can be associated with
multiple different products (as opposed to always saying the device
is named after the value in a #define).

Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Piotr Chmura <chmooreck@poczta.onet.pl>
Signed-off-by: Sylwester Nawrocki <snjw23@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/staging/media/as102/as102_drv.c

@@ -209,7 +209,7 @@ int as102_dvb_register(struct as102_dev_t *as102_dev)
 
 #if defined(CONFIG_DVB_CORE) || defined(CONFIG_DVB_CORE_MODULE)
 	ret = dvb_register_adapter(&as102_dev->dvb_adap,
-				   DEVICE_FULL_NAME,
+				   as102_dev->name,
 				   THIS_MODULE,
 #if defined(CONFIG_AS102_USB)
 				   &as102_dev->bus_adap.usb_dev->dev

drivers/staging/media/as102/as102_drv.h

@@ -106,6 +106,7 @@ struct as102_bus_adapter_t {
 };
 
 struct as102_dev_t {
+	const char *name;
 	struct as102_bus_adapter_t bus_adap;
 	struct list_head device_entry;
 	struct kref kref;

drivers/staging/media/as102/as102_fe.c

@@ -346,7 +346,7 @@ static int as102_fe_ts_bus_ctrl(struct dvb_frontend *fe, int acquire)
 
 static struct dvb_frontend_ops as102_fe_ops = {
 	.info = {
-		.name			= DEVICE_FULL_NAME,
+		.name			= "Unknown AS102 device",
 		.type			= FE_OFDM,
 		.frequency_min		= 174000000,
 		.frequency_max		= 862000000,
@@ -408,6 +408,8 @@ int as102_dvb_register_fe(struct as102_dev_t *as102_dev,
 
 	/* init frontend callback ops */
 	memcpy(&dvb_fe->ops, &as102_fe_ops, sizeof(struct dvb_frontend_ops));
+	strncpy(dvb_fe->ops.info.name, as102_dev->name,
+		sizeof(dvb_fe->ops.info.name));
 
 	/* register dbvb frontend */
 	errno = dvb_register_frontend(dvb_adap, dvb_fe);

drivers/staging/media/as102/as102_usb_drv.c

@@ -44,6 +44,15 @@ static struct usb_device_id as102_usb_id_table[] = {
 	{ } /* Terminating entry */
 };
 
+/* Note that this table must always have the same number of entries as the
+   as102_usb_id_table struct */
+static const char *as102_device_names[] = {
+	AS102_REFERENCE_DESIGN,
+	AS102_PCTV_74E,
+	AS102_ELGATO_EYETV_DTT_NAME,
+	NULL /* Terminating entry */
+};
+
 struct usb_driver as102_usb_driver = {
 	.name       =  DRIVER_FULL_NAME,
 	.probe      =  as102_usb_probe,
@@ -344,6 +353,7 @@ static int as102_usb_probe(struct usb_interface *intf,
 {
 	int ret;
 	struct as102_dev_t *as102_dev;
+	int i;
 
 	ENTER();
 
@@ -353,6 +363,23 @@ static int as102_usb_probe(struct usb_interface *intf,
 		return -ENOMEM;
 	}
 
+	/* This should never actually happen */
+	if ((sizeof(as102_usb_id_table) / sizeof(struct usb_device_id)) !=
+	    (sizeof(as102_device_names) / sizeof(const char *))) {
+		printk(KERN_ERR "Device names table invalid size");
+		return -EINVAL;
+	}
+
+	/* Assign the user-friendly device name */
+	for (i = 0; i < (sizeof(as102_usb_id_table) /
+			 sizeof(struct usb_device_id)); i++) {
+		if (id == &as102_usb_id_table[i])
+			as102_dev->name = as102_device_names[i];
+	}
+
+	if (as102_dev->name == NULL)
+		as102_dev->name = "Unknown AS102 device";
+
 	/* set private callback functions */
 	as102_dev->bus_adap.ops = &as102_priv_ops;
 

drivers/staging/media/as102/as102_usb_drv.h

@@ -28,16 +28,17 @@
 /* define these values to match the supported devices */
 
 /* Abilis system: "TITAN" */
+#define AS102_REFERENCE_DESIGN		"Abilis Systems DVB-Titan"
 #define AS102_USB_DEVICE_VENDOR_ID	0x1BA6
 #define AS102_USB_DEVICE_PID_0001	0x0001
 
 /* PCTV Systems: PCTV picoStick (74e) */
-#define DEVICE_FULL_NAME		"PCTV Systems : PCTV picoStick (74e)"
+#define AS102_PCTV_74E			"PCTV Systems picoStick (74e)"
 #define PCTV_74E_USB_VID		0x2013
 #define PCTV_74E_USB_PID		0x0246
 
 /* Elgato: EyeTV DTT Deluxe */
-#define ELGATO_EYETV_DTT_NAME		"Elgato EyeTV DTT Deluxe"
+#define AS102_ELGATO_EYETV_DTT_NAME	"Elgato EyeTV DTT Deluxe"
 #define ELGATO_EYETV_DTT_USB_VID	0x0fd9
 #define ELGATO_EYETV_DTT_USB_PID	0x002c