chiark / gitweb /
replace binary firmware helper with shell script
authorKay Sievers <kay.sievers@suse.de>
Sun, 28 May 2006 08:23:32 +0000 (10:23 +0200)
committerKay Sievers <kay.sievers@suse.de>
Sun, 28 May 2006 08:23:32 +0000 (10:23 +0200)
extras/firmware/Makefile
extras/firmware/firmware.sh [new file with mode: 0755]
extras/firmware/firmware_helper.c [deleted file]

index a30c0fc..55ba223 100644 (file)
@@ -1,14 +1,11 @@
 # Makefile for udev extra invoked from the udev main Makefile
 #
-# Copyright (C) 2004-2005 Kay Sievers <kay.sievers@vrfy.org>
+# Copyright (C) 2004-2006 Kay Sievers <kay.sievers@vrfy.org>
 #
 # Released under the GNU General Public License, version 2.
 #
 
-PROG = firmware_helper
-OBJ =
-HEADERS =
-GEN_HEADERS =
+PROG = firmware.sh
 MAN_PAGES =
 
 prefix =
@@ -29,14 +26,6 @@ all: $(PROG) $(MAN_PAGES)
 .PHONY: all
 .DEFAULT: all
 
-%.o: %.c $(GEN_HEADERS)
-       $(E) "  CC      " $@
-       $(Q) $(CC) -c $(CFLAGS) $< -o $@
-
-$(PROG): %: $(HEADERS) %.o $(OBJS)
-       $(E) "  LD      " $@
-       $(Q) $(LD) $(LDFLAGS) $@.o $(OBJS) -o $@ $(LIBUDEV) $(LIB_OBJS)
-
 # man pages
 %.8: %.xml
        $(E) "  XMLTO   " $@
@@ -45,7 +34,6 @@ $(PROG): %: $(HEADERS) %.o $(OBJS)
 
 clean:
        $(E) "  CLEAN   "
-       $(Q) rm -f $(PROG) $(OBJS) $(GEN_HEADERS)
 .PHONY: clean
 
 install-bin: all
@@ -67,3 +55,4 @@ uninstall-man:
 install-config:
        @echo "no config file to install"
 .PHONY: install-config
+
diff --git a/extras/firmware/firmware.sh b/extras/firmware/firmware.sh
new file mode 100755 (executable)
index 0000000..fb2f2a7
--- /dev/null
@@ -0,0 +1,27 @@
+#!/bin/sh -e
+
+FIRMWARE_DIRS="/lib/firmware /usr/local/lib/firmware"
+
+err() {
+    echo "$@" >&2
+    if [ -x /bin/logger ]; then
+       /bin/logger -t "${0##*/}[$$]" "$@"
+    fi
+}
+
+if [ ! -e /sys$DEVPATH/loading ]; then
+    err "udev firmware loader misses sysfs directory"
+    exit 1
+fi
+
+for DIR in $FIRMWARE_DIRS; do
+    [ -e "$DIR/$FIRMWARE" ] || continue
+    echo 1 > /sys/$DEVPATH/loading
+    cat "$DIR/$FIRMWARE" > /sys/$DEVPATH/data
+    echo 0 > /sys/$DEVPATH/loading
+    exit 0
+done
+
+echo -1 > /sys/$DEVPATH/loading
+err "Cannot find  firmware file '$FIRMWARE'"
+exit 1
diff --git a/extras/firmware/firmware_helper.c b/extras/firmware/firmware_helper.c
deleted file mode 100644 (file)
index ca1c438..0000000
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * A simple firmware helper program.
- * 
- * Copyright 2005 Red Hat, Inc.
- *
- *     This program is free software; you can redistribute it and/or modify it
- *     under the terms of the GNU General Public License as published by the
- *     Free Software Foundation version 2 of the License.
- */
-
-#include <errno.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <syslog.h>
-#include <unistd.h>
-#include <sys/stat.h>
-
-#include "../../udev.h"
-
-#define FIRMWARE_PATH                  "/lib/firmware"
-#define PATH_SIZE                      256
-
-#ifdef USE_LOG
-void log_message(int priority, const char *format, ...)
-{
-       va_list args;
-       static int udev_log = -1;
-
-       if (udev_log == -1) {
-               const char *value;
-
-               value = getenv("UDEV_LOG");
-               if (value)
-                       udev_log = log_priority(value);
-               else
-                       udev_log = LOG_ERR;
-       }
-
-       if (priority > udev_log)
-               return;
-
-       va_start(args, format);
-       vsyslog(priority, format, args);
-       va_end(args);
-}
-#endif
-
-/* Set the 'loading' attribute for a firmware device.
- * 1 == currently loading
- * 0 == done loading
- * -1 == error
- */
-static int set_loading(const char *device, int value) {
-       char loading_path[PATH_SIZE];
-       int rc;
-       FILE *f;
-
-       snprintf(loading_path, sizeof(loading_path), "/sys/%s/loading", device);
-       loading_path[sizeof(loading_path)-1] = '\0';
-       f = fopen(loading_path, "w");
-       if (!f)
-               return -1;
-       rc = fprintf(f, "%d", value);
-       fclose(f);
-       if (rc < 0)
-               return rc;
-       return 0;
-}
-
-int main(int argc, char **argv) {
-       char *devpath, *firmware, *action, *driver;
-       char fw_path[PATH_SIZE];
-       char data_path[PATH_SIZE];
-       int fw_fd;
-       char *fw_buffer;
-       size_t fw_buffer_size;
-       size_t count;
-       int rc = 0;
-
-       logging_init("firmware_helper");
-
-       driver = getenv("PHYSDEVDRIVER");
-       if (!driver)
-               driver = "(unknown)";
-       devpath = getenv("DEVPATH");
-       firmware = getenv("FIRMWARE");
-       action = getenv("ACTION");
-       if (!devpath || !firmware || !action || strcmp(action,"add") != 0) {
-               err("missing devpath, action or firmware");
-               exit(1);
-       }
-
-       dbg("try to load firmware '%s' for '%s'", firmware, devpath);
-       set_loading(devpath, 1);
-
-       snprintf(fw_path, sizeof(fw_path), "%s/%s", FIRMWARE_PATH, firmware);
-       fw_path[sizeof(fw_path)-1] = '\0';
-       if (file_map(fw_path, &fw_buffer, &fw_buffer_size) != 0 || fw_buffer_size == 0) {
-               err("could not load firmware '%s' for '%s'", fw_path, devpath);
-               fw_buffer = NULL;
-               goto out_err;
-       }
-
-       snprintf(data_path, sizeof(data_path), "/sys/%s/data", devpath);
-       data_path[sizeof(data_path)-1] = '\0';
-       fw_fd = open(data_path, O_RDWR);
-       if (fw_fd < 0) {
-               rc = errno;
-               goto out_err;
-       }
-
-       count = 0;
-       while (count < fw_buffer_size) {
-               ssize_t c;
-
-               c = write(fw_fd, fw_buffer+count, fw_buffer_size-count);
-               if (c <= 0) {
-                       rc = errno;
-                       close(fw_fd);
-                       goto out_err;
-               }
-               count += c;
-       }
-
-       close(fw_fd);
-       file_unmap(fw_buffer, fw_buffer_size);
-       set_loading(devpath, 0);
-       info("loaded '%s' for device '%s'", fw_path, devpath);
-       logging_close();
-       return 0;
-
-out_err:
-       if (fw_buffer)
-               file_unmap(fw_buffer, fw_buffer_size);
-       set_loading(devpath, -1);
-
-       err("error loading '%s' for device '%s' with driver '%s'", fw_path, devpath, driver);
-       logging_close();
-       return rc;
-}