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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /drivers/zorro/zorro-sysfs.c
Initial import
Diffstat (limited to 'drivers/zorro/zorro-sysfs.c')
-rw-r--r--drivers/zorro/zorro-sysfs.c120
1 files changed, 120 insertions, 0 deletions
diff --git a/drivers/zorro/zorro-sysfs.c b/drivers/zorro/zorro-sysfs.c
new file mode 100644
index 000000000..36b210f9b
--- /dev/null
+++ b/drivers/zorro/zorro-sysfs.c
@@ -0,0 +1,120 @@
+/*
+ * File Attributes for Zorro Devices
+ *
+ * Copyright (C) 2003 Geert Uytterhoeven
+ *
+ * Loosely based on drivers/pci/pci-sysfs.c
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+
+#include <linux/kernel.h>
+#include <linux/zorro.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+
+#include <asm/byteorder.h>
+
+#include "zorro.h"
+
+
+/* show configuration fields */
+#define zorro_config_attr(name, field, format_string) \
+static ssize_t \
+show_##name(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+ struct zorro_dev *z; \
+ \
+ z = to_zorro_dev(dev); \
+ return sprintf(buf, format_string, z->field); \
+} \
+static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL);
+
+zorro_config_attr(id, id, "0x%08x\n");
+zorro_config_attr(type, rom.er_Type, "0x%02x\n");
+zorro_config_attr(slotaddr, slotaddr, "0x%04x\n");
+zorro_config_attr(slotsize, slotsize, "0x%04x\n");
+
+static ssize_t
+show_serial(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct zorro_dev *z;
+
+ z = to_zorro_dev(dev);
+ return sprintf(buf, "0x%08x\n", be32_to_cpu(z->rom.er_SerialNumber));
+}
+
+static DEVICE_ATTR(serial, S_IRUGO, show_serial, NULL);
+
+static ssize_t zorro_show_resource(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct zorro_dev *z = to_zorro_dev(dev);
+
+ return sprintf(buf, "0x%08lx 0x%08lx 0x%08lx\n",
+ (unsigned long)zorro_resource_start(z),
+ (unsigned long)zorro_resource_end(z),
+ zorro_resource_flags(z));
+}
+
+static DEVICE_ATTR(resource, S_IRUGO, zorro_show_resource, NULL);
+
+static ssize_t zorro_read_config(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *bin_attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct zorro_dev *z = to_zorro_dev(container_of(kobj, struct device,
+ kobj));
+ struct ConfigDev cd;
+
+ /* Construct a ConfigDev */
+ memset(&cd, 0, sizeof(cd));
+ cd.cd_Rom = z->rom;
+ cd.cd_SlotAddr = cpu_to_be16(z->slotaddr);
+ cd.cd_SlotSize = cpu_to_be16(z->slotsize);
+ cd.cd_BoardAddr = cpu_to_be32(zorro_resource_start(z));
+ cd.cd_BoardSize = cpu_to_be32(zorro_resource_len(z));
+
+ return memory_read_from_buffer(buf, count, &off, &cd, sizeof(cd));
+}
+
+static struct bin_attribute zorro_config_attr = {
+ .attr = {
+ .name = "config",
+ .mode = S_IRUGO,
+ },
+ .size = sizeof(struct ConfigDev),
+ .read = zorro_read_config,
+};
+
+static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct zorro_dev *z = to_zorro_dev(dev);
+
+ return sprintf(buf, ZORRO_DEVICE_MODALIAS_FMT "\n", z->id);
+}
+
+static DEVICE_ATTR(modalias, S_IRUGO, modalias_show, NULL);
+
+int zorro_create_sysfs_dev_files(struct zorro_dev *z)
+{
+ struct device *dev = &z->dev;
+ int error;
+
+ /* current configuration's attributes */
+ if ((error = device_create_file(dev, &dev_attr_id)) ||
+ (error = device_create_file(dev, &dev_attr_type)) ||
+ (error = device_create_file(dev, &dev_attr_serial)) ||
+ (error = device_create_file(dev, &dev_attr_slotaddr)) ||
+ (error = device_create_file(dev, &dev_attr_slotsize)) ||
+ (error = device_create_file(dev, &dev_attr_resource)) ||
+ (error = device_create_file(dev, &dev_attr_modalias)) ||
+ (error = sysfs_create_bin_file(&dev->kobj, &zorro_config_attr)))
+ return error;
+
+ return 0;
+}
+