diff options
| -rw-r--r-- | extras/firmware/Makefile | 51 | ||||
| -rw-r--r-- | extras/firmware/firmware_helper.c | 147 | ||||
| -rw-r--r-- | logging.h | 2 | ||||
| -rwxr-xr-x | test/simple-build-check.sh | 3 |
4 files changed, 201 insertions, 2 deletions
diff --git a/extras/firmware/Makefile b/extras/firmware/Makefile new file mode 100644 index 0000000000..6417bbf185 --- /dev/null +++ b/extras/firmware/Makefile @@ -0,0 +1,51 @@ +# Makefile for usb_id +# +# Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org> +# +# 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. +# + +PROG = firmware_helper + +all: $(PROG) + +prefix = +exec_prefix = ${prefix} +etcdir = ${prefix}/etc +sbindir = ${exec_prefix}/sbin +usrbindir = ${exec_prefix}/usr/bin +usrsbindir = ${exec_prefix}/usr/sbin +mandir = ${prefix}/usr/share/man +devddir = ${etcdir}/dev.d/default +configdir = ${etcdir}/udev/ +initdir = ${etcdir}/init.d/ +srcdir = . + +INSTALL = /usr/bin/install -c +INSTALL_PROGRAM = ${INSTALL} +INSTALL_DATA = ${INSTALL} -m 644 +INSTALL_SCRIPT = ${INSTALL_PROGRAM} + +OBJS = $(PROG).o $(VOLUME_ID_OBJS) ../../udev.a ../../libsysfs/sysfs.a +HEADERS = + +$(OBJS): $(HEADERS) + +.c.o: + $(QUIET) $(CC) $(CFLAGS) -c -o $@ $< + +$(PROG): $(OBJS) $(HEADERS) + $(QUIET) $(LD) $(LDFLAGS) -o $(PROG) $(OBJS) $(LIB_OBJS) + +clean: + rm -f $(PROG) $(OBJS) + +spotless: clean + +install: all + $(INSTALL_PROGRAM) $(PROG) $(DESTDIR)$(sbindir)/$(PROG) + +uninstall: + - rm $(DESTDIR)$(sbindir)/$(PROG) diff --git a/extras/firmware/firmware_helper.c b/extras/firmware/firmware_helper.c new file mode 100644 index 0000000000..283ea9f76f --- /dev/null +++ b/extras/firmware/firmware_helper.c @@ -0,0 +1,147 @@ +/* + * A simple firmware helper program. + * + * Copyright 2005 Red Hat, Inc. + * + * This software may be freely redistributed under the terms of the GNU + * public license. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#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_utils.h" +#include "../../logging.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); + fw_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) { + int c; + + c = write(fw_fd, fw_buffer+count, fw_buffer_size); + 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; +} @@ -38,7 +38,7 @@ #undef err #define err(format, arg...) \ do { \ - log_message(LOG_INFO ,"%s: " format ,__FILE__ ,## arg); \ + log_message(LOG_ERR ,"%s: " format ,__FILE__ ,## arg); \ } while (0) #undef info diff --git a/test/simple-build-check.sh b/test/simple-build-check.sh index 742b28ec1c..521691618a 100755 --- a/test/simple-build-check.sh +++ b/test/simple-build-check.sh @@ -8,7 +8,8 @@ EXTRAS="\ extras/usb_id \ extras/dasd_id \ extras/floppy \ - extras/run_directory" + extras/run_directory \ + extras/firmware" [ -z "$KERNEL_DIR" ] && KERNEL_DIR=/lib/modules/`uname -r`/build echo KERNEL_DIR: "$KERNEL_DIR" |