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-rw-r--r--scripts/mod/file2alias.c62
1 files changed, 61 insertions, 1 deletions
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index e3d144a3f10b..e0eedffe565b 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -16,8 +16,10 @@
* use either stdint.h or inttypes.h for the rest. */
#if KERNEL_ELFCLASS == ELFCLASS32
typedef Elf32_Addr kernel_ulong_t;
+#define BITS_PER_LONG 32
#else
typedef Elf64_Addr kernel_ulong_t;
+#define BITS_PER_LONG 64
#endif
#ifdef __sun__
#include <inttypes.h>
@@ -35,6 +37,7 @@ typedef unsigned char __u8;
* even potentially has different endianness and word sizes, since
* we handle those differences explicitly below */
#include "../../include/linux/mod_devicetable.h"
+#include "../../include/linux/input.h"
#define ADD(str, sep, cond, field) \
do { \
@@ -366,6 +369,61 @@ static int do_i2c_entry(const char *filename, struct i2c_device_id *i2c, char *a
return 1;
}
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+
+static void do_input(char *alias,
+ kernel_ulong_t *arr, unsigned int min, unsigned int max)
+{
+ unsigned int i;
+ for (i = min; i < max; i++) {
+ if (arr[i/BITS_PER_LONG] & (1 << (i%BITS_PER_LONG)))
+ sprintf(alias+strlen(alias), "%X,*", i);
+ }
+}
+
+/* input:b0v0p0e0-eXkXrXaXmXlXsXfXwX where X is comma-separated %02X. */
+static int do_input_entry(const char *filename, struct input_device_id *id,
+ char *alias)
+{
+ sprintf(alias, "input:");
+
+ ADD(alias, "b", id->flags&INPUT_DEVICE_ID_MATCH_BUS, id->id.bustype);
+ ADD(alias, "v", id->flags&INPUT_DEVICE_ID_MATCH_VENDOR, id->id.vendor);
+ ADD(alias, "p", id->flags&INPUT_DEVICE_ID_MATCH_PRODUCT,
+ id->id.product);
+ ADD(alias, "e", id->flags&INPUT_DEVICE_ID_MATCH_VERSION,
+ id->id.version);
+
+ sprintf(alias + strlen(alias), "-e*");
+ if (id->flags&INPUT_DEVICE_ID_MATCH_EVBIT)
+ do_input(alias, id->evbit, 0, EV_MAX);
+ sprintf(alias + strlen(alias), "k*");
+ if (id->flags&INPUT_DEVICE_ID_MATCH_KEYBIT)
+ do_input(alias, id->keybit, KEY_MIN_INTERESTING, KEY_MAX);
+ sprintf(alias + strlen(alias), "r*");
+ if (id->flags&INPUT_DEVICE_ID_MATCH_RELBIT)
+ do_input(alias, id->relbit, 0, REL_MAX);
+ sprintf(alias + strlen(alias), "a*");
+ if (id->flags&INPUT_DEVICE_ID_MATCH_ABSBIT)
+ do_input(alias, id->absbit, 0, ABS_MAX);
+ sprintf(alias + strlen(alias), "m*");
+ if (id->flags&INPUT_DEVICE_ID_MATCH_MSCIT)
+ do_input(alias, id->mscbit, 0, MSC_MAX);
+ sprintf(alias + strlen(alias), "l*");
+ if (id->flags&INPUT_DEVICE_ID_MATCH_LEDBIT)
+ do_input(alias, id->ledbit, 0, LED_MAX);
+ sprintf(alias + strlen(alias), "s*");
+ if (id->flags&INPUT_DEVICE_ID_MATCH_SNDBIT)
+ do_input(alias, id->sndbit, 0, SND_MAX);
+ sprintf(alias + strlen(alias), "f*");
+ if (id->flags&INPUT_DEVICE_ID_MATCH_FFBIT)
+ do_input(alias, id->ffbit, 0, SND_MAX);
+ sprintf(alias + strlen(alias), "w*");
+ if (id->flags&INPUT_DEVICE_ID_MATCH_SWBIT)
+ do_input(alias, id->swbit, 0, SW_MAX);
+ return 1;
+}
+
/* Ignore any prefix, eg. v850 prepends _ */
static inline int sym_is(const char *symbol, const char *name)
{
@@ -453,7 +511,9 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
else if (sym_is(symname, "__mod_i2c_device_table"))
do_table(symval, sym->st_size, sizeof(struct i2c_device_id),
do_i2c_entry, mod);
-
+ else if (sym_is(symname, "__mod_input_device_table"))
+ do_table(symval, sym->st_size, sizeof(struct input_device_id),
+ do_input_entry, mod);
}
/* Now add out buffered information to the generated C source */