V4L/DVB (6773): pvrusb2: rework device descriptor layout

The pvrusb2 driver tries to keep all device specific attributes in a
single data structure in one source file.  This change further cleans
up how that table is set up.  We now try to group everything together
for each specific device, and the number of symbols exported from this
module has now been reduced to a single global.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/pvrusb2/pvrusb2-devattr.c

@@ -33,71 +33,22 @@ pvr2_device_desc structures.
 #include <linux/i2c.h>
 #include <media/tuner.h>
 
-/* Known major hardware variants, keyed from device ID */
-#define PVR2_HDW_TYPE_29XXX 0
-#define PVR2_HDW_TYPE_24XXX 1
-#define PVR2_HDW_TYPE_GOTVIEW_2 2
-#ifdef CONFIG_VIDEO_PVRUSB2_ONAIR_CREATOR
-#define PVR2_HDW_TYPE_ONAIR_CREATOR 3
-#endif
-#ifdef CONFIG_VIDEO_PVRUSB2_ONAIR_USB2
-#define PVR2_HDW_TYPE_ONAIR_USB2 4
-#endif
-
-struct usb_device_id pvr2_device_table[] = {
-	[PVR2_HDW_TYPE_29XXX] = { USB_DEVICE(0x2040, 0x2900) },
-	[PVR2_HDW_TYPE_24XXX] = { USB_DEVICE(0x2040, 0x2400) },
-	[PVR2_HDW_TYPE_GOTVIEW_2] = { USB_DEVICE(0x1164, 0x0622) },
-#ifdef CONFIG_VIDEO_PVRUSB2_ONAIR_CREATOR
-	[PVR2_HDW_TYPE_ONAIR_CREATOR] = { USB_DEVICE(0x11ba, 0x1003) },
-#endif
-#ifdef CONFIG_VIDEO_PVRUSB2_ONAIR_USB2
-	[PVR2_HDW_TYPE_ONAIR_USB2] = { USB_DEVICE(0x11ba, 0x1001) },
-#endif
-	{ }
-};
-#if defined(CONFIG_VIDEO_PVRUSB2_ONAIR_CREATOR) || defined(CONFIG_VIDEO_PVRUSB2_ONAIR_USB2)
 
-/* Names of other client modules to request for Creator model hardware */
-static const char *pvr2_client_onair[] = {
-	"saa7115",
-	"tuner",
-	"cs53l32a",
-};
-#endif
 
-/* Names of other client modules to request for 24xxx model hardware */
-static const char *pvr2_client_24xxx[] = {
-	"cx25840",
-	"tuner",
-	"wm8775",
-};
+/*------------------------------------------------------------------------*/
+/* Hauppauge PVR-USB2 Model 29xxx */
 
-/* Names of other client modules to request for 29xxx model hardware */
 static const char *pvr2_client_29xxx[] = {
 	"msp3400",
 	"saa7115",
 	"tuner",
 };
 
-// Names of other client modules to request for Gotview 2 model hardware
-static const char *pvr2_client_gotview_2[] = {
-	"cx25840",
-	"tuner",
-};
-
-/* Firmware file name(s) for 29xxx devices */
 static const char *pvr2_fw1_names_29xxx[] = {
 		"v4l-pvrusb2-29xxx-01.fw",
 };
 
-/* Firmware file name(s) for 24xxx devices */
-static const char *pvr2_fw1_names_24xxx[] = {
-		"v4l-pvrusb2-24xxx-01.fw",
-};
-
-const struct pvr2_device_desc pvr2_device_descriptions[] = {
-	[PVR2_HDW_TYPE_29XXX] = {
+static const struct pvr2_device_desc pvr2_device_29xxx = {
 		.description = "WinTV PVR USB2 Model Category 29xxxx",
 		.shortname = "29xxx",
 		.client_modules.lst = pvr2_client_29xxx,
@@ -106,8 +57,24 @@ const struct pvr2_device_desc pvr2_device_descriptions[] = {
 		.fx2_firmware.cnt = ARRAY_SIZE(pvr2_fw1_names_29xxx),
 		.flag_has_hauppauge_rom = !0,
 		.signal_routing_scheme = PVR2_ROUTING_SCHEME_HAUPPAUGE,
-	},
-	[PVR2_HDW_TYPE_24XXX] = {
+};
+
+
+
+/*------------------------------------------------------------------------*/
+/* Hauppauge PVR-USB2 Model 24xxx */
+
+static const char *pvr2_client_24xxx[] = {
+	"cx25840",
+	"tuner",
+	"wm8775",
+};
+
+static const char *pvr2_fw1_names_24xxx[] = {
+		"v4l-pvrusb2-24xxx-01.fw",
+};
+
+static const struct pvr2_device_desc pvr2_device_24xxx = {
 		.description = "WinTV PVR USB2 Model Category 24xxxx",
 		.shortname = "24xxx",
 		.client_modules.lst = pvr2_client_24xxx,
@@ -119,8 +86,19 @@ const struct pvr2_device_desc pvr2_device_descriptions[] = {
 		.flag_has_hauppauge_rom = !0,
 		.flag_has_hauppauge_custom_ir = !0,
 		.signal_routing_scheme = PVR2_ROUTING_SCHEME_HAUPPAUGE,
-	},
-	[PVR2_HDW_TYPE_GOTVIEW_2] = {
+};
+
+
+
+/*------------------------------------------------------------------------*/
+/* GOTVIEW USB2.0 DVD2 */
+
+static const char *pvr2_client_gotview_2[] = {
+	"cx25840",
+	"tuner",
+};
+
+static const struct pvr2_device_desc pvr2_device_gotview_2 = {
 		.description = "Gotview USB 2.0 DVD 2",
 		.shortname = "gv2",
 		.client_modules.lst = pvr2_client_gotview_2,
@@ -128,30 +106,73 @@ const struct pvr2_device_desc pvr2_device_descriptions[] = {
 		.flag_has_cx25840 = !0,
 		.default_tuner_type = TUNER_PHILIPS_FM1216ME_MK3,
 		.signal_routing_scheme = PVR2_ROUTING_SCHEME_GOTVIEW,
-	},
+};
+
+
+
 #ifdef CONFIG_VIDEO_PVRUSB2_ONAIR_CREATOR
-	[PVR2_HDW_TYPE_ONAIR_CREATOR] = {
+/*------------------------------------------------------------------------*/
+/* OnAir Creator */
+
+static const char *pvr2_client_onair_creator[] = {
+	"saa7115",
+	"tuner",
+	"cs53l32a",
+};
+
+static const struct pvr2_device_desc pvr2_device_onair_creator = {
 		.description = "OnAir Creator Hybrid USB tuner",
 		.shortname = "oac",
-		.client_modules.lst = pvr2_client_onair,
-		.client_modules.cnt = ARRAY_SIZE(pvr2_client_onair),
+		.client_modules.lst = pvr2_client_onair_creator,
+		.client_modules.cnt = ARRAY_SIZE(pvr2_client_onair_creator),
 		.default_tuner_type = TUNER_LG_TDVS_H06XF,
 		.signal_routing_scheme = PVR2_ROUTING_SCHEME_HAUPPAUGE,
-	},
+};
 #endif
+
+
+
 #ifdef CONFIG_VIDEO_PVRUSB2_ONAIR_USB2
-	[PVR2_HDW_TYPE_ONAIR_USB2] = {
+/*------------------------------------------------------------------------*/
+/* OnAir USB 2.0 */
+
+static const char *pvr2_client_onair_usb2[] = {
+	"saa7115",
+	"tuner",
+	"cs53l32a",
+};
+
+static const struct pvr2_device_desc pvr2_device_onair_usb2 = {
 		.description = "OnAir USB2 Hybrid USB tuner",
 		.shortname = "oa2",
-		.client_modules.lst = pvr2_client_onair,
-		.client_modules.cnt = ARRAY_SIZE(pvr2_client_onair),
+		.client_modules.lst = pvr2_client_onair_usb2,
+		.client_modules.cnt = ARRAY_SIZE(pvr2_client_onair_usb2),
 		.default_tuner_type = TUNER_PHILIPS_ATSC,
 		.signal_routing_scheme = PVR2_ROUTING_SCHEME_HAUPPAUGE,
-	},
-#endif
 };
+#endif
+
+
 
-const unsigned int pvr2_device_count = ARRAY_SIZE(pvr2_device_descriptions);
+/*------------------------------------------------------------------------*/
+
+struct usb_device_id pvr2_device_table[] = {
+	{ USB_DEVICE(0x2040, 0x2900),
+	  .driver_info = (kernel_ulong_t)&pvr2_device_29xxx},
+	{ USB_DEVICE(0x2040, 0x2400),
+	  .driver_info = (kernel_ulong_t)&pvr2_device_24xxx},
+	{ USB_DEVICE(0x1164, 0x0622),
+	  .driver_info = (kernel_ulong_t)&pvr2_device_gotview_2},
+#ifdef CONFIG_VIDEO_PVRUSB2_ONAIR_CREATOR
+	{ USB_DEVICE(0x11ba, 0x1003),
+	  .driver_info = (kernel_ulong_t)&pvr2_device_onair_creator},
+#endif
+#ifdef CONFIG_VIDEO_PVRUSB2_ONAIR_USB2
+	{ USB_DEVICE(0x11ba, 0x1001),
+	  .driver_info = (kernel_ulong_t)&pvr2_device_onair_usb2},
+#endif
+	{ }
+};
 
 MODULE_DEVICE_TABLE(usb, pvr2_device_table);
 

drivers/media/video/pvrusb2/pvrusb2-devattr.h

@@ -104,9 +104,7 @@ struct pvr2_device_desc {
 	char flag_has_hauppauge_custom_ir;
 };
 
-extern const struct pvr2_device_desc pvr2_device_descriptions[];
 extern struct usb_device_id pvr2_device_table[];
-extern const unsigned int pvr2_device_count;
 
 #endif /* __PVRUSB2_HDW_INTERNAL_H */
 

drivers/media/video/pvrusb2/pvrusb2-hdw.c

@@ -1813,7 +1813,6 @@ struct pvr2_hdw *pvr2_hdw_create(struct usb_interface *intf,
 {
 	unsigned int idx,cnt1,cnt2;
 	struct pvr2_hdw *hdw;
-	unsigned int hdw_type;
 	int valid_std_mask;
 	struct pvr2_ctrl *cptr;
 	const struct pvr2_device_desc *hdw_desc;
@@ -1821,13 +1820,7 @@ struct pvr2_hdw *pvr2_hdw_create(struct usb_interface *intf,
 	struct v4l2_queryctrl qctrl;
 	struct pvr2_ctl_info *ciptr;
 
-	hdw_type = devid - pvr2_device_table;
-	if (hdw_type >= pvr2_device_count) {
-		pvr2_trace(PVR2_TRACE_ERROR_LEGS,
-			   "Bogus device type of %u reported",hdw_type);
-		return NULL;
-	}
-	hdw_desc = pvr2_device_descriptions + hdw_type;
+	hdw_desc = (const struct pvr2_device_desc *)(devid->driver_info);
 
 	hdw = kzalloc(sizeof(*hdw),GFP_KERNEL);
 	pvr2_trace(PVR2_TRACE_INIT,"pvr2_hdw_create: hdw=%p, type \"%s\"",