staging: comedi: cb_pcidas: use the pci id_table 'driver_data'

Create an enum to the boardinfo and pass that enum in the pci_driver
id_table as the driver_data.

Change the macro used to fill in the device table from PCI_DEVICE() to
PCI_VDEVICE(). This allows passing the enum as the next field.

This allows removing the 'device_id' data from the boardinfo as well
the search function that was used to locate the boardinfo for the PCI
device.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/cb_pcidas.c

@@ -231,9 +231,19 @@ enum trimpot_model {
 	AD8402,
 };
 
+enum cb_pcidas_boardid {
+	BOARD_PCIDAS1602_16,
+	BOARD_PCIDAS1200,
+	BOARD_PCIDAS1602_12,
+	BOARD_PCIDAS1200_JR,
+	BOARD_PCIDAS1602_16_JR,
+	BOARD_PCIDAS1000,
+	BOARD_PCIDAS1001,
+	BOARD_PCIDAS1002,
+};
+
 struct cb_pcidas_board {
 	const char *name;
-	unsigned short device_id;
 	int ai_nchan;		/*  Inputs in single-ended mode */
 	int ai_bits;		/*  analog input resolution */
 	int ai_speed;		/*  fastest conversion period in ns */
@@ -248,9 +258,8 @@ struct cb_pcidas_board {
 };
 
 static const struct cb_pcidas_board cb_pcidas_boards[] = {
-	{
+	[BOARD_PCIDAS1602_16] = {
 		.name		= "pci-das1602/16",
-		.device_id	= 0x1,
 		.ai_nchan	= 16,
 		.ai_bits	= 16,
 		.ai_speed	= 5000,
@@ -262,9 +271,9 @@ static const struct cb_pcidas_board cb_pcidas_boards[] = {
 		.trimpot	= AD8402,
 		.has_dac08	= 1,
 		.is_1602	= 1,
-	}, {
+	},
+	[BOARD_PCIDAS1200] = {
 		.name		= "pci-das1200",
-		.device_id	= 0xF,
 		.ai_nchan	= 16,
 		.ai_bits	= 12,
 		.ai_speed	= 3200,
@@ -272,9 +281,9 @@ static const struct cb_pcidas_board cb_pcidas_boards[] = {
 		.fifo_size	= 1024,
 		.ranges		= &cb_pcidas_ranges,
 		.trimpot	= AD7376,
-	}, {
+	},
+	[BOARD_PCIDAS1602_12] = {
 		.name		= "pci-das1602/12",
-		.device_id	= 0x10,
 		.ai_nchan	= 16,
 		.ai_bits	= 12,
 		.ai_speed	= 3200,
@@ -285,18 +294,18 @@ static const struct cb_pcidas_board cb_pcidas_boards[] = {
 		.ranges		= &cb_pcidas_ranges,
 		.trimpot	= AD7376,
 		.is_1602	= 1,
-	}, {
+	},
+	[BOARD_PCIDAS1200_JR] = {
 		.name		= "pci-das1200/jr",
-		.device_id	= 0x19,
 		.ai_nchan	= 16,
 		.ai_bits	= 12,
 		.ai_speed	= 3200,
 		.fifo_size	= 1024,
 		.ranges		= &cb_pcidas_ranges,
 		.trimpot	= AD7376,
-	}, {
+	},
+	[BOARD_PCIDAS1602_16_JR] = {
 		.name		= "pci-das1602/16/jr",
-		.device_id	= 0x1C,
 		.ai_nchan	= 16,
 		.ai_bits	= 16,
 		.ai_speed	= 5000,
@@ -305,18 +314,18 @@ static const struct cb_pcidas_board cb_pcidas_boards[] = {
 		.trimpot	= AD8402,
 		.has_dac08	= 1,
 		.is_1602	= 1,
-	}, {
+	},
+	[BOARD_PCIDAS1000] = {
 		.name		= "pci-das1000",
-		.device_id	= 0x4C,
 		.ai_nchan	= 16,
 		.ai_bits	= 12,
 		.ai_speed	= 4000,
 		.fifo_size	= 1024,
 		.ranges		= &cb_pcidas_ranges,
 		.trimpot	= AD7376,
-	}, {
+	},
+	[BOARD_PCIDAS1001] = {
 		.name		= "pci-das1001",
-		.device_id	= 0x1a,
 		.ai_nchan	= 16,
 		.ai_bits	= 12,
 		.ai_speed	= 6800,
@@ -324,9 +333,9 @@ static const struct cb_pcidas_board cb_pcidas_boards[] = {
 		.fifo_size	= 1024,
 		.ranges		= &cb_pcidas_alt_ranges,
 		.trimpot	= AD7376,
-	}, {
+	},
+	[BOARD_PCIDAS1002] = {
 		.name		= "pci-das1002",
-		.device_id	= 0x1b,
 		.ai_nchan	= 16,
 		.ai_bits	= 12,
 		.ai_speed	= 6800,
@@ -1424,31 +1433,18 @@ static irqreturn_t cb_pcidas_interrupt(int irq, void *d)
 	return IRQ_HANDLED;
 }
 
-static const void *cb_pcidas_find_boardinfo(struct comedi_device *dev,
-					    struct pci_dev *pcidev)
-{
-	const struct cb_pcidas_board *thisboard;
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(cb_pcidas_boards); i++) {
-		thisboard = &cb_pcidas_boards[i];
-		if (thisboard->device_id == pcidev->device)
-			return thisboard;
-	}
-	return NULL;
-}
-
 static int cb_pcidas_auto_attach(struct comedi_device *dev,
-					   unsigned long context_unused)
+				 unsigned long context)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct cb_pcidas_board *thisboard;
+	const struct cb_pcidas_board *thisboard = NULL;
 	struct cb_pcidas_private *devpriv;
 	struct comedi_subdevice *s;
 	int i;
 	int ret;
 
-	thisboard = cb_pcidas_find_boardinfo(dev, pcidev);
+	if (context < ARRAY_SIZE(cb_pcidas_boards))
+		thisboard = &cb_pcidas_boards[context];
 	if (!thisboard)
 		return -ENODEV;
 	dev->board_ptr  = thisboard;
@@ -1636,14 +1632,14 @@ static int cb_pcidas_pci_probe(struct pci_dev *dev,
 }
 
 static DEFINE_PCI_DEVICE_TABLE(cb_pcidas_pci_table) = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_CB, 0x0001) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_CB, 0x000f) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_CB, 0x0010) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_CB, 0x0019) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_CB, 0x001c) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_CB, 0x004c) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_CB, 0x001a) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_CB, 0x001b) },
+	{ PCI_VDEVICE(CB, 0x0001), BOARD_PCIDAS1602_16 },
+	{ PCI_VDEVICE(CB, 0x000f), BOARD_PCIDAS1200 },
+	{ PCI_VDEVICE(CB, 0x0010), BOARD_PCIDAS1602_12 },
+	{ PCI_VDEVICE(CB, 0x0019), BOARD_PCIDAS1200_JR },
+	{ PCI_VDEVICE(CB, 0x001c), BOARD_PCIDAS1602_16_JR },
+	{ PCI_VDEVICE(CB, 0x004c), BOARD_PCIDAS1000 },
+	{ PCI_VDEVICE(CB, 0x001a), BOARD_PCIDAS1001 },
+	{ PCI_VDEVICE(CB, 0x001b), BOARD_PCIDAS1002 },
 	{ 0 }
 };
 MODULE_DEVICE_TABLE(pci, cb_pcidas_pci_table);