mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-08-22 11:53:40 +03:00
Compile tested only. git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31809 3c298f89-4303-0410-b956-a3cf2f4a3e73
340 lines
10 KiB
Diff
340 lines
10 KiB
Diff
--- a/drivers/hwmon/Kconfig
|
|
+++ b/drivers/hwmon/Kconfig
|
|
@@ -423,6 +423,15 @@ config SENSORS_GL520SM
|
|
This driver can also be built as a module. If so, the module
|
|
will be called gl520sm.
|
|
|
|
+config SENSORS_GSP
|
|
+ tristate "Gateworks System Peripheral"
|
|
+ depends on I2C && EXPERIMENTAL
|
|
+ help
|
|
+ If you say yes here you get support for the Gateworks System Peripherals.
|
|
+
|
|
+ This driver can also be built as a module. If so, the module
|
|
+ will be called gsp.
|
|
+
|
|
config SENSORS_GPIO_FAN
|
|
tristate "GPIO fan"
|
|
depends on GENERIC_GPIO
|
|
--- a/drivers/hwmon/Makefile
|
|
+++ b/drivers/hwmon/Makefile
|
|
@@ -125,6 +125,7 @@ obj-$(CONFIG_SENSORS_W83L785TS) += w83l7
|
|
obj-$(CONFIG_SENSORS_W83L786NG) += w83l786ng.o
|
|
obj-$(CONFIG_SENSORS_WM831X) += wm831x-hwmon.o
|
|
obj-$(CONFIG_SENSORS_WM8350) += wm8350-hwmon.o
|
|
+obj-$(CONFIG_SENSORS_GSP) += gsp.o
|
|
|
|
obj-$(CONFIG_PMBUS) += pmbus/
|
|
|
|
--- /dev/null
|
|
+++ b/drivers/hwmon/gsp.c
|
|
@@ -0,0 +1,308 @@
|
|
+/*
|
|
+ * A hwmon driver for the Gateworks System Peripheral
|
|
+ * Copyright (C) 2009 Gateworks Corporation
|
|
+ *
|
|
+ * Author: Chris Lang <clang@gateworks.com>
|
|
+ *
|
|
+ * 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.
|
|
+ */
|
|
+
|
|
+#include <linux/module.h>
|
|
+#include <linux/i2c.h>
|
|
+#include <linux/hwmon.h>
|
|
+#include <linux/hwmon-sysfs.h>
|
|
+#include <linux/err.h>
|
|
+#include <linux/slab.h>
|
|
+
|
|
+#define DRV_VERSION "0.2"
|
|
+
|
|
+enum chips { gsp };
|
|
+
|
|
+/* AD7418 registers */
|
|
+#define GSP_REG_TEMP_IN 0x00
|
|
+#define GSP_REG_VIN 0x02
|
|
+#define GSP_REG_3P3 0x05
|
|
+#define GSP_REG_BAT 0x08
|
|
+#define GSP_REG_5P0 0x0b
|
|
+#define GSP_REG_CORE 0x0e
|
|
+#define GSP_REG_CPU1 0x11
|
|
+#define GSP_REG_CPU2 0x14
|
|
+#define GSP_REG_DRAM 0x17
|
|
+#define GSP_REG_EXT_BAT 0x1a
|
|
+#define GSP_REG_IO1 0x1d
|
|
+#define GSP_REG_IO2 0x20
|
|
+#define GSP_REG_PCIE 0x23
|
|
+#define GSP_REG_CURRENT 0x26
|
|
+#define GSP_FAN_0 0x2C
|
|
+#define GSP_FAN_1 0x2E
|
|
+#define GSP_FAN_2 0x30
|
|
+#define GSP_FAN_3 0x32
|
|
+#define GSP_FAN_4 0x34
|
|
+#define GSP_FAN_5 0x36
|
|
+
|
|
+struct gsp_sensor_info {
|
|
+ const char* name;
|
|
+ int reg;
|
|
+};
|
|
+
|
|
+static const struct gsp_sensor_info gsp_sensors[] = {
|
|
+ {"temp", GSP_REG_TEMP_IN},
|
|
+ {"vin", GSP_REG_VIN},
|
|
+ {"3p3", GSP_REG_3P3},
|
|
+ {"bat", GSP_REG_BAT},
|
|
+ {"5p0", GSP_REG_5P0},
|
|
+ {"core", GSP_REG_CORE},
|
|
+ {"cpu1", GSP_REG_CPU1},
|
|
+ {"cpu2", GSP_REG_CPU2},
|
|
+ {"dram", GSP_REG_DRAM},
|
|
+ {"ext_bat", GSP_REG_EXT_BAT},
|
|
+ {"io1", GSP_REG_IO1},
|
|
+ {"io2", GSP_REG_IO2},
|
|
+ {"pci2", GSP_REG_PCIE},
|
|
+ {"current", GSP_REG_CURRENT},
|
|
+ {"fan_point0", GSP_FAN_0},
|
|
+ {"fan_point1", GSP_FAN_1},
|
|
+ {"fan_point2", GSP_FAN_2},
|
|
+ {"fan_point3", GSP_FAN_3},
|
|
+ {"fan_point4", GSP_FAN_4},
|
|
+ {"fan_point5", GSP_FAN_5},
|
|
+};
|
|
+
|
|
+struct gsp_data {
|
|
+ struct device *hwmon_dev;
|
|
+ struct attribute_group attrs;
|
|
+ enum chips type;
|
|
+};
|
|
+
|
|
+static int gsp_probe(struct i2c_client *client,
|
|
+ const struct i2c_device_id *id);
|
|
+static int gsp_remove(struct i2c_client *client);
|
|
+
|
|
+static const struct i2c_device_id gsp_id[] = {
|
|
+ { "gsp", 0 },
|
|
+ { }
|
|
+};
|
|
+MODULE_DEVICE_TABLE(i2c, gsp_id);
|
|
+
|
|
+static struct i2c_driver gsp_driver = {
|
|
+ .driver = {
|
|
+ .name = "gsp",
|
|
+ },
|
|
+ .probe = gsp_probe,
|
|
+ .remove = gsp_remove,
|
|
+ .id_table = gsp_id,
|
|
+};
|
|
+
|
|
+/* All registers are word-sized, except for the configuration registers.
|
|
+ * AD7418 uses a high-byte first convention. Do NOT use those functions to
|
|
+ * access the configuration registers CONF and CONF2, as they are byte-sized.
|
|
+ */
|
|
+static inline int gsp_read(struct i2c_client *client, u8 reg)
|
|
+{
|
|
+ unsigned int adc = 0;
|
|
+ if (reg == GSP_REG_TEMP_IN || reg > GSP_REG_CURRENT)
|
|
+ {
|
|
+ adc |= i2c_smbus_read_byte_data(client, reg);
|
|
+ adc |= i2c_smbus_read_byte_data(client, reg + 1) << 8;
|
|
+ return adc;
|
|
+ }
|
|
+ else
|
|
+ {
|
|
+ adc |= i2c_smbus_read_byte_data(client, reg);
|
|
+ adc |= i2c_smbus_read_byte_data(client, reg + 1) << 8;
|
|
+ adc |= i2c_smbus_read_byte_data(client, reg + 2) << 16;
|
|
+ return adc;
|
|
+ }
|
|
+}
|
|
+
|
|
+static inline int gsp_write(struct i2c_client *client, u8 reg, u16 value)
|
|
+{
|
|
+ i2c_smbus_write_byte_data(client, reg, value & 0xff);
|
|
+ i2c_smbus_write_byte_data(client, reg + 1, ((value >> 8) & 0xff));
|
|
+ return 1;
|
|
+}
|
|
+
|
|
+static ssize_t show_adc(struct device *dev, struct device_attribute *devattr,
|
|
+ char *buf)
|
|
+{
|
|
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
|
|
+ struct i2c_client *client = to_i2c_client(dev);
|
|
+ return sprintf(buf, "%d\n", gsp_read(client, gsp_sensors[attr->index].reg));
|
|
+}
|
|
+
|
|
+static ssize_t show_label(struct device *dev,
|
|
+ struct device_attribute *devattr, char *buf)
|
|
+{
|
|
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
|
|
+
|
|
+ return sprintf(buf, "%s\n", gsp_sensors[attr->index].name);
|
|
+}
|
|
+
|
|
+static ssize_t store_fan(struct device *dev,
|
|
+ struct device_attribute *devattr, const char *buf, size_t count)
|
|
+{
|
|
+ u16 val;
|
|
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
|
|
+ struct i2c_client *client = to_i2c_client(dev);
|
|
+ val = simple_strtoul(buf, NULL, 10);
|
|
+ gsp_write(client, gsp_sensors[attr->index].reg, val);
|
|
+ return count;
|
|
+}
|
|
+
|
|
+static SENSOR_DEVICE_ATTR(temp0_input, S_IRUGO, show_adc, NULL, 0);
|
|
+static SENSOR_DEVICE_ATTR(temp0_label, S_IRUGO, show_label, NULL, 0);
|
|
+
|
|
+static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_adc, NULL, 1);
|
|
+static SENSOR_DEVICE_ATTR(in0_label, S_IRUGO, show_label, NULL, 1);
|
|
+static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_adc, NULL, 2);
|
|
+static SENSOR_DEVICE_ATTR(in1_label, S_IRUGO, show_label, NULL, 2);
|
|
+static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_adc, NULL, 3);
|
|
+static SENSOR_DEVICE_ATTR(in2_label, S_IRUGO, show_label, NULL, 3);
|
|
+static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_adc, NULL, 4);
|
|
+static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, show_label, NULL, 4);
|
|
+static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_adc, NULL, 5);
|
|
+static SENSOR_DEVICE_ATTR(in4_label, S_IRUGO, show_label, NULL, 5);
|
|
+static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_adc, NULL, 6);
|
|
+static SENSOR_DEVICE_ATTR(in5_label, S_IRUGO, show_label, NULL, 6);
|
|
+static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_adc, NULL, 7);
|
|
+static SENSOR_DEVICE_ATTR(in6_label, S_IRUGO, show_label, NULL, 7);
|
|
+static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_adc, NULL, 8);
|
|
+static SENSOR_DEVICE_ATTR(in7_label, S_IRUGO, show_label, NULL, 8);
|
|
+static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_adc, NULL, 9);
|
|
+static SENSOR_DEVICE_ATTR(in8_label, S_IRUGO, show_label, NULL, 9);
|
|
+static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, show_adc, NULL, 10);
|
|
+static SENSOR_DEVICE_ATTR(in9_label, S_IRUGO, show_label, NULL, 10);
|
|
+static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, show_adc, NULL, 11);
|
|
+static SENSOR_DEVICE_ATTR(in10_label, S_IRUGO, show_label, NULL, 11);
|
|
+static SENSOR_DEVICE_ATTR(in11_input, S_IRUGO, show_adc, NULL, 12);
|
|
+static SENSOR_DEVICE_ATTR(in11_label, S_IRUGO, show_label, NULL, 12);
|
|
+static SENSOR_DEVICE_ATTR(in12_input, S_IRUGO, show_adc, NULL, 13);
|
|
+static SENSOR_DEVICE_ATTR(in12_label, S_IRUGO, show_label, NULL, 13);
|
|
+
|
|
+static SENSOR_DEVICE_ATTR(fan0_point0, S_IRUGO | S_IWUSR, show_adc, store_fan, 14);
|
|
+static SENSOR_DEVICE_ATTR(fan0_point1, S_IRUGO | S_IWUSR, show_adc, store_fan, 15);
|
|
+static SENSOR_DEVICE_ATTR(fan0_point2, S_IRUGO | S_IWUSR, show_adc, store_fan, 16);
|
|
+static SENSOR_DEVICE_ATTR(fan0_point3, S_IRUGO | S_IWUSR, show_adc, store_fan, 17);
|
|
+static SENSOR_DEVICE_ATTR(fan0_point4, S_IRUGO | S_IWUSR, show_adc, store_fan, 18);
|
|
+static SENSOR_DEVICE_ATTR(fan0_point5, S_IRUGO | S_IWUSR, show_adc, store_fan, 19);
|
|
+
|
|
+static struct attribute *gsp_attributes[] = {
|
|
+ &sensor_dev_attr_temp0_input.dev_attr.attr,
|
|
+ &sensor_dev_attr_in0_input.dev_attr.attr,
|
|
+ &sensor_dev_attr_in1_input.dev_attr.attr,
|
|
+ &sensor_dev_attr_in2_input.dev_attr.attr,
|
|
+ &sensor_dev_attr_in3_input.dev_attr.attr,
|
|
+ &sensor_dev_attr_in4_input.dev_attr.attr,
|
|
+ &sensor_dev_attr_in5_input.dev_attr.attr,
|
|
+ &sensor_dev_attr_in6_input.dev_attr.attr,
|
|
+ &sensor_dev_attr_in7_input.dev_attr.attr,
|
|
+ &sensor_dev_attr_in8_input.dev_attr.attr,
|
|
+ &sensor_dev_attr_in9_input.dev_attr.attr,
|
|
+ &sensor_dev_attr_in10_input.dev_attr.attr,
|
|
+ &sensor_dev_attr_in11_input.dev_attr.attr,
|
|
+ &sensor_dev_attr_in12_input.dev_attr.attr,
|
|
+
|
|
+ &sensor_dev_attr_temp0_label.dev_attr.attr,
|
|
+ &sensor_dev_attr_in0_label.dev_attr.attr,
|
|
+ &sensor_dev_attr_in1_label.dev_attr.attr,
|
|
+ &sensor_dev_attr_in2_label.dev_attr.attr,
|
|
+ &sensor_dev_attr_in3_label.dev_attr.attr,
|
|
+ &sensor_dev_attr_in4_label.dev_attr.attr,
|
|
+ &sensor_dev_attr_in5_label.dev_attr.attr,
|
|
+ &sensor_dev_attr_in6_label.dev_attr.attr,
|
|
+ &sensor_dev_attr_in7_label.dev_attr.attr,
|
|
+ &sensor_dev_attr_in8_label.dev_attr.attr,
|
|
+ &sensor_dev_attr_in9_label.dev_attr.attr,
|
|
+ &sensor_dev_attr_in10_label.dev_attr.attr,
|
|
+ &sensor_dev_attr_in11_label.dev_attr.attr,
|
|
+ &sensor_dev_attr_in12_label.dev_attr.attr,
|
|
+
|
|
+ &sensor_dev_attr_fan0_point0.dev_attr.attr,
|
|
+ &sensor_dev_attr_fan0_point1.dev_attr.attr,
|
|
+ &sensor_dev_attr_fan0_point2.dev_attr.attr,
|
|
+ &sensor_dev_attr_fan0_point3.dev_attr.attr,
|
|
+ &sensor_dev_attr_fan0_point4.dev_attr.attr,
|
|
+ &sensor_dev_attr_fan0_point5.dev_attr.attr,
|
|
+ NULL
|
|
+};
|
|
+
|
|
+
|
|
+static int gsp_probe(struct i2c_client *client,
|
|
+ const struct i2c_device_id *id)
|
|
+{
|
|
+ struct i2c_adapter *adapter = client->adapter;
|
|
+ struct gsp_data *data;
|
|
+ int err;
|
|
+
|
|
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
|
|
+ I2C_FUNC_SMBUS_WORD_DATA)) {
|
|
+ err = -EOPNOTSUPP;
|
|
+ goto exit;
|
|
+ }
|
|
+
|
|
+ if (!(data = kzalloc(sizeof(struct gsp_data), GFP_KERNEL))) {
|
|
+ err = -ENOMEM;
|
|
+ goto exit;
|
|
+ }
|
|
+
|
|
+ i2c_set_clientdata(client, data);
|
|
+
|
|
+ data->type = id->driver_data;
|
|
+
|
|
+ switch (data->type) {
|
|
+ case 0:
|
|
+ data->attrs.attrs = gsp_attributes;
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ dev_info(&client->dev, "%s chip found\n", client->name);
|
|
+
|
|
+ /* Register sysfs hooks */
|
|
+ if ((err = sysfs_create_group(&client->dev.kobj, &data->attrs)))
|
|
+ goto exit_free;
|
|
+
|
|
+ data->hwmon_dev = hwmon_device_register(&client->dev);
|
|
+ if (IS_ERR(data->hwmon_dev)) {
|
|
+ err = PTR_ERR(data->hwmon_dev);
|
|
+ goto exit_remove;
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+
|
|
+exit_remove:
|
|
+ sysfs_remove_group(&client->dev.kobj, &data->attrs);
|
|
+exit_free:
|
|
+ kfree(data);
|
|
+exit:
|
|
+ return err;
|
|
+}
|
|
+
|
|
+static int gsp_remove(struct i2c_client *client)
|
|
+{
|
|
+ struct gsp_data *data = i2c_get_clientdata(client);
|
|
+ hwmon_device_unregister(data->hwmon_dev);
|
|
+ sysfs_remove_group(&client->dev.kobj, &data->attrs);
|
|
+ kfree(data);
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int __init gsp_init(void)
|
|
+{
|
|
+ return i2c_add_driver(&gsp_driver);
|
|
+}
|
|
+
|
|
+static void __exit gsp_exit(void)
|
|
+{
|
|
+ i2c_del_driver(&gsp_driver);
|
|
+}
|
|
+
|
|
+module_init(gsp_init);
|
|
+module_exit(gsp_exit);
|
|
+
|
|
+MODULE_AUTHOR("Chris Lang <clang@gateworks.com>");
|
|
+MODULE_DESCRIPTION("GSP HWMON driver");
|
|
+MODULE_LICENSE("GPL");
|
|
+MODULE_VERSION(DRV_VERSION);
|
|
+
|