file2alias for pnp (Re: modules.pnpmap output support)

[Takashi Iwai]

Hi,

the attached is the patch to add pnp entries to file2alias.c.
i moved the definitions of pnp_device_id and pnp_card_device_id into 
mod_devicetable.h as other devices do.  if you don't like it, i'll try
to revert them and put definitions inside file2alias.c to keep the
changes minimum.

the format of pnp alias is:
	pnp:dXXXYYYY
or
	pnp:cXXXYYYYdXXXYYYY[dXXXYYYY...]
where XXXYYYY is the pnp id with 7 letters (e.g. CTL0031), c shows the
card id, and d means the device id.  multiple device ids will be
listed depending on the driver.

for example,

	alias pnp:dYMH0021* opl3sa2
	alias pnp:cALS0001d@@@0001d@X@0001d@H@0001* snd_als100

Andrey, would it be feasible for hotplug stuff?

--
Takashi Iwai <tiwai@xxxxxxx>		ALSA Developer - www.alsa-project.org
--- linux-2.6.0-test10/scripts/file2alias.c-dist	2003-11-26 17:10:34.000000000 +0100
+++ linux-2.6.0-test10/scripts/file2alias.c	2003-11-26 17:33:54.000000000 +0100
@@ -169,6 +169,28 @@
 	return 1;
 }
 
+/* looks like: "pnp:dD" */ 
+static int do_pnp_entry(const char *filename,
+			struct pnp_device_id *id, char *alias)
+{
+	sprintf(alias, "pnp:d%s", id->id);
+	return 1;
+}
+
+/* looks like: "pnp:cCdD..." */ 
+static int do_pnp_card_entry(const char *filename,
+			struct pnp_card_device_id *id, char *alias)
+{
+	int i;
+	sprintf(alias, "pnp:c%s", id->id);
+	for (i = 0; i < PNP_MAX_DEVICES; i++) {
+		if (! *id->devs[i].id)
+			break;
+		sprintf(alias + strlen(alias), "d%s", id->devs[i].id);
+	}
+	return 1;
+}
+
 /* Ignore any prefix, eg. v850 prepends _ */
 static inline int sym_is(const char *symbol, const char *name)
 {
@@ -235,6 +257,12 @@
 	else if (sym_is(symname, "__mod_ccw_device_table"))
 		do_table(symval, sym->st_size, sizeof(struct ccw_device_id),
 			 do_ccw_entry, mod);
+	else if (sym_is(symname, "__mod_pnp_device_table"))
+		do_table(symval, sym->st_size, sizeof(struct pnp_device_id),
+			 do_pnp_entry, mod);
+	else if (sym_is(symname, "__mod_pnp_card_device_table"))
+		do_table(symval, sym->st_size, sizeof(struct pnp_card_device_id),
+			 do_pnp_card_entry, mod);
 }
 
 /* Now add out buffered information to the generated C source */
--- linux-2.6.0-test10/include/linux/pnp.h-dist	2003-11-26 17:23:00.000000000 +0100
+++ linux-2.6.0-test10/include/linux/pnp.h	2003-11-26 17:27:35.000000000 +0100
@@ -12,13 +12,12 @@
 #include <linux/device.h>
 #include <linux/list.h>
 #include <linux/errno.h>
+#include <linux/mod_devicetable.h>
 
 #define PNP_MAX_PORT		8
 #define PNP_MAX_MEM		4
 #define PNP_MAX_IRQ		2
 #define PNP_MAX_DMA		2
-#define PNP_MAX_DEVICES		8
-#define PNP_ID_LEN		8
 #define PNP_NAME_LEN		50
 
 struct pnp_protocol;
@@ -279,19 +278,6 @@
 	struct pnp_id * next;
 };
 
-struct pnp_device_id {
-	char id[PNP_ID_LEN];
-	unsigned long driver_data;	/* data private to the driver */
-};
-
-struct pnp_card_device_id {
-	char id[PNP_ID_LEN];
-	unsigned long driver_data;	/* data private to the driver */
-	struct {
-		char id[PNP_ID_LEN];
-	} devs[PNP_MAX_DEVICES];	/* logical devices */
-};
-
 struct pnp_driver {
 	char * name;
 	const struct pnp_device_id *id_table;
--- linux-2.6.0-test10/include/linux/mod_devicetable.h-dist	2003-11-26 17:22:57.000000000 +0100
+++ linux-2.6.0-test10/include/linux/mod_devicetable.h	2003-11-26 17:27:34.000000000 +0100
@@ -148,4 +148,20 @@
 #define CCW_DEVICE_ID_MATCH_DEVICE_MODEL	0x08
 
 
+#define PNP_ID_LEN		8
+#define PNP_MAX_DEVICES		8
+
+struct pnp_device_id {
+	__u8 id[PNP_ID_LEN];
+	kernel_ulong_t driver_data;	/* data private to the driver */
+};
+
+struct pnp_card_device_id {
+	__u8 id[PNP_ID_LEN];
+	kernel_ulong_t driver_data;	/* data private to the driver */
+	struct {
+		__u8 id[PNP_ID_LEN];
+	} devs[PNP_MAX_DEVICES];	/* logical devices */
+};
+
 #endif /* LINUX_MOD_DEVICETABLE_H */