Staging: ipack: implement ipack device table.
The modaliases look like ipack:fXvNdM, where X is the format version (8
bit) and N and M are the vendor and device ID represented as 32 bit
hexadecimal numbers each. Using 32 bits allows us to define IPACK_ANY_ID
as (~0) without interfering with the valid ids.
The resulting modalias string for ipoctal.ko looks like this (once
ipoctal provides a device table):
alias: ipack:f01v000000F0d00000048*
alias: ipack:f01v000000F0d0000002A*
alias: ipack:f01v000000F0d00000022*
(output from modinfo)
Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org>
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/ipack/ipack.h b/drivers/staging/ipack/ipack.h
index e3609b1..703142d 100644
--- a/drivers/staging/ipack/ipack.h
+++ b/drivers/staging/ipack/ipack.h
@@ -9,6 +9,7 @@
* Software Foundation; version 2 of the License.
*/
+#include <linux/mod_devicetable.h>
#include <linux/device.h>
#define IPACK_IDPROM_OFFSET_I 0x01
@@ -95,6 +96,7 @@
*/
struct ipack_driver {
struct device_driver driver;
+ const struct ipack_device_id *id_table;
struct ipack_driver_ops *ops;
};
@@ -169,3 +171,27 @@
*/
struct ipack_device *ipack_device_register(struct ipack_bus_device *bus, int slot, int irqv);
void ipack_device_unregister(struct ipack_device *dev);
+
+/**
+ * DEFINE_IPACK_DEVICE_TABLE - macro used to describe a IndustryPack table
+ * @_table: device table name
+ *
+ * This macro is used to create a struct ipack_device_id array (a device table)
+ * in a generic manner.
+ */
+#define DEFINE_IPACK_DEVICE_TABLE(_table) \
+ const struct ipack_device_id _table[] __devinitconst
+
+/**
+ * IPACK_DEVICE - macro used to describe a specific IndustryPack device
+ * @_format: the format version (currently either 1 or 2, 8 bit value)
+ * @vend: the 8 or 24 bit IndustryPack Vendor ID
+ * @dev: the 8 or 16 bit IndustryPack Device ID
+ *
+ * This macro is used to create a struct ipack_device_id that matches a specific
+ * device.
+ */
+#define IPACK_DEVICE(_format, vend, dev) \
+ .format = (_format), \
+ .vendor = (vend), \
+ .device = (dev)