* See COPYING in the top level directory of the kernel tree.
*/
+#include <linux/debugfs.h>
#include <linux/kernel.h>
#include <linux/hwmon.h>
#include <linux/list.h>
#include <linux/module.h>
+#include <linux/slab.h>
#include <acpi/acpi.h>
#include <acpi/acpixf.h>
#define METHOD_OLD_ENUM_FAN "FSIF"
#define ATK_MUX_HWMON 0x00000006ULL
+#define ATK_MUX_MGMT 0x00000011ULL
#define ATK_CLASS_MASK 0xff000000ULL
#define ATK_CLASS_FREQ_CTL 0x03000000ULL
#define ATK_CLASS_FAN_CTL 0x04000000ULL
#define ATK_CLASS_HWMON 0x06000000ULL
+#define ATK_CLASS_MGMT 0x11000000ULL
#define ATK_TYPE_MASK 0x00ff0000ULL
#define HWMON_TYPE_VOLT 0x00020000ULL
#define HWMON_TYPE_TEMP 0x00030000ULL
#define HWMON_TYPE_FAN 0x00040000ULL
-#define HWMON_SENSOR_ID_MASK 0x0000ffffULL
+#define ATK_ELEMENT_ID_MASK 0x0000ffffULL
+
+#define ATK_EC_ID 0x11060004ULL
enum atk_pack_member {
HWMON_PACK_FLAGS,
/* new inteface */
acpi_handle enumerate_handle;
acpi_handle read_handle;
+ acpi_handle write_handle;
+
+ bool disable_ec;
int voltage_count;
int temperature_count;
int fan_count;
struct list_head sensor_list;
+
+ struct {
+ struct dentry *root;
+ u32 id;
+ } debugfs;
};
char const *acpi_name;
};
-struct atk_acpi_buffer_u64 {
- union acpi_object buf;
- u64 value;
+/* Return buffer format:
+ * [0-3] "value" is valid flag
+ * [4-7] value
+ * [8- ] unknown stuff on newer mobos
+ */
+struct atk_acpi_ret_buffer {
+ u32 flags;
+ u32 value;
+ u8 data[];
+};
+
+/* Input buffer used for GITM and SITM methods */
+struct atk_acpi_input_buf {
+ u32 id;
+ u32 param1;
+ u32 param2;
};
static int atk_add(struct acpi_device *device);
return 0;
}
+#ifdef DEBUG
static char const *atk_sensor_type(union acpi_object *flags)
{
u64 type = flags->integer.value & ATK_TYPE_MASK;
return what;
}
+#endif
static void atk_print_sensor(struct atk_data *data, union acpi_object *obj)
{
return 0;
}
-static int atk_read_value_new(struct atk_sensor_data *sensor, u64 *value)
+static union acpi_object *atk_ggrp(struct atk_data *data, u16 mux)
{
- struct atk_data *data = sensor->data;
struct device *dev = &data->acpi_dev->dev;
+ struct acpi_buffer buf;
+ acpi_status ret;
struct acpi_object_list params;
- struct acpi_buffer ret;
union acpi_object id;
- struct atk_acpi_buffer_u64 tmp;
- acpi_status status;
+ union acpi_object *pack;
id.type = ACPI_TYPE_INTEGER;
- id.integer.value = sensor->id;
-
+ id.integer.value = mux;
params.count = 1;
params.pointer = &id;
- tmp.buf.type = ACPI_TYPE_BUFFER;
- tmp.buf.buffer.pointer = (u8 *)&tmp.value;
- tmp.buf.buffer.length = sizeof(u64);
- ret.length = sizeof(tmp);
- ret.pointer = &tmp;
+ buf.length = ACPI_ALLOCATE_BUFFER;
+ ret = acpi_evaluate_object(data->enumerate_handle, NULL, ¶ms, &buf);
+ if (ret != AE_OK) {
+ dev_err(dev, "GGRP[%#x] ACPI exception: %s\n", mux,
+ acpi_format_exception(ret));
+ return ERR_PTR(-EIO);
+ }
+ pack = buf.pointer;
+ if (pack->type != ACPI_TYPE_PACKAGE) {
+ /* Execution was successful, but the id was not found */
+ ACPI_FREE(pack);
+ return ERR_PTR(-ENOENT);
+ }
+
+ if (pack->package.count < 1) {
+ dev_err(dev, "GGRP[%#x] package is too small\n", mux);
+ ACPI_FREE(pack);
+ return ERR_PTR(-EIO);
+ }
+ return pack;
+}
+
+static union acpi_object *atk_gitm(struct atk_data *data, u64 id)
+{
+ struct device *dev = &data->acpi_dev->dev;
+ struct atk_acpi_input_buf buf;
+ union acpi_object tmp;
+ struct acpi_object_list params;
+ struct acpi_buffer ret;
+ union acpi_object *obj;
+ acpi_status status;
+
+ buf.id = id;
+ buf.param1 = 0;
+ buf.param2 = 0;
+
+ tmp.type = ACPI_TYPE_BUFFER;
+ tmp.buffer.pointer = (u8 *)&buf;
+ tmp.buffer.length = sizeof(buf);
+ params.count = 1;
+ params.pointer = (void *)&tmp;
+
+ ret.length = ACPI_ALLOCATE_BUFFER;
status = acpi_evaluate_object_typed(data->read_handle, NULL, ¶ms,
&ret, ACPI_TYPE_BUFFER);
if (status != AE_OK) {
- dev_warn(dev, "%s: ACPI exception: %s\n", __func__,
+ dev_warn(dev, "GITM[%#llx] ACPI exception: %s\n", id,
acpi_format_exception(status));
- return -EIO;
+ return ERR_PTR(-EIO);
+ }
+ obj = ret.pointer;
+
+ /* Sanity check */
+ if (obj->buffer.length < 8) {
+ dev_warn(dev, "Unexpected ASBF length: %u\n",
+ obj->buffer.length);
+ ACPI_FREE(obj);
+ return ERR_PTR(-EIO);
}
+ return obj;
+}
- /* Return buffer format:
- * [0-3] "value" is valid flag
- * [4-7] value
- */
- if (!(tmp.value & 0xffffffff)) {
+static union acpi_object *atk_sitm(struct atk_data *data,
+ struct atk_acpi_input_buf *buf)
+{
+ struct device *dev = &data->acpi_dev->dev;
+ struct acpi_object_list params;
+ union acpi_object tmp;
+ struct acpi_buffer ret;
+ union acpi_object *obj;
+ acpi_status status;
+
+ tmp.type = ACPI_TYPE_BUFFER;
+ tmp.buffer.pointer = (u8 *)buf;
+ tmp.buffer.length = sizeof(*buf);
+
+ params.count = 1;
+ params.pointer = &tmp;
+
+ ret.length = ACPI_ALLOCATE_BUFFER;
+ status = acpi_evaluate_object_typed(data->write_handle, NULL, ¶ms,
+ &ret, ACPI_TYPE_BUFFER);
+ if (status != AE_OK) {
+ dev_warn(dev, "SITM[%#x] ACPI exception: %s\n", buf->id,
+ acpi_format_exception(status));
+ return ERR_PTR(-EIO);
+ }
+ obj = ret.pointer;
+
+ /* Sanity check */
+ if (obj->buffer.length < 8) {
+ dev_warn(dev, "Unexpected ASBF length: %u\n",
+ obj->buffer.length);
+ ACPI_FREE(obj);
+ return ERR_PTR(-EIO);
+ }
+ return obj;
+}
+
+static int atk_read_value_new(struct atk_sensor_data *sensor, u64 *value)
+{
+ struct atk_data *data = sensor->data;
+ struct device *dev = &data->acpi_dev->dev;
+ union acpi_object *obj;
+ struct atk_acpi_ret_buffer *buf;
+ int err = 0;
+
+ obj = atk_gitm(data, sensor->id);
+ if (IS_ERR(obj))
+ return PTR_ERR(obj);
+
+ buf = (struct atk_acpi_ret_buffer *)obj->buffer.pointer;
+ if (buf->flags == 0) {
/* The reading is not valid, possible causes:
* - sensor failure
* - enumeration was FUBAR (and we didn't notice)
*/
- dev_info(dev, "Failure: %#llx\n", tmp.value);
- return -EIO;
+ dev_warn(dev, "Read failed, sensor = %#llx\n", sensor->id);
+ err = -EIO;
+ goto out;
}
- *value = (tmp.value & 0xffffffff00000000ULL) >> 32;
-
- return 0;
+ *value = buf->value;
+out:
+ ACPI_FREE(obj);
+ return err;
}
static int atk_read_value(struct atk_sensor_data *sensor, u64 *value)
return err;
}
+#ifdef CONFIG_DEBUG_FS
+static int atk_debugfs_gitm_get(void *p, u64 *val)
+{
+ struct atk_data *data = p;
+ union acpi_object *ret;
+ struct atk_acpi_ret_buffer *buf;
+ int err = 0;
+
+ if (!data->read_handle)
+ return -ENODEV;
+
+ if (!data->debugfs.id)
+ return -EINVAL;
+
+ ret = atk_gitm(data, data->debugfs.id);
+ if (IS_ERR(ret))
+ return PTR_ERR(ret);
+
+ buf = (struct atk_acpi_ret_buffer *)ret->buffer.pointer;
+ if (buf->flags)
+ *val = buf->value;
+ else
+ err = -EIO;
+
+ return err;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(atk_debugfs_gitm,
+ atk_debugfs_gitm_get,
+ NULL,
+ "0x%08llx\n")
+
+static int atk_acpi_print(char *buf, size_t sz, union acpi_object *obj)
+{
+ int ret = 0;
+
+ switch (obj->type) {
+ case ACPI_TYPE_INTEGER:
+ ret = snprintf(buf, sz, "0x%08llx\n", obj->integer.value);
+ break;
+ case ACPI_TYPE_STRING:
+ ret = snprintf(buf, sz, "%s\n", obj->string.pointer);
+ break;
+ }
+
+ return ret;
+}
+
+static void atk_pack_print(char *buf, size_t sz, union acpi_object *pack)
+{
+ int ret;
+ int i;
+
+ for (i = 0; i < pack->package.count; i++) {
+ union acpi_object *obj = &pack->package.elements[i];
+
+ ret = atk_acpi_print(buf, sz, obj);
+ if (ret >= sz)
+ break;
+ buf += ret;
+ sz -= ret;
+ }
+}
+
+static int atk_debugfs_ggrp_open(struct inode *inode, struct file *file)
+{
+ struct atk_data *data = inode->i_private;
+ char *buf = NULL;
+ union acpi_object *ret;
+ u8 cls;
+ int i;
+
+ if (!data->enumerate_handle)
+ return -ENODEV;
+ if (!data->debugfs.id)
+ return -EINVAL;
+
+ cls = (data->debugfs.id & 0xff000000) >> 24;
+ ret = atk_ggrp(data, cls);
+ if (IS_ERR(ret))
+ return PTR_ERR(ret);
+
+ for (i = 0; i < ret->package.count; i++) {
+ union acpi_object *pack = &ret->package.elements[i];
+ union acpi_object *id;
+
+ if (pack->type != ACPI_TYPE_PACKAGE)
+ continue;
+ if (!pack->package.count)
+ continue;
+ id = &pack->package.elements[0];
+ if (id->integer.value == data->debugfs.id) {
+ /* Print the package */
+ buf = kzalloc(512, GFP_KERNEL);
+ if (!buf) {
+ ACPI_FREE(ret);
+ return -ENOMEM;
+ }
+ atk_pack_print(buf, 512, pack);
+ break;
+ }
+ }
+ ACPI_FREE(ret);
+
+ if (!buf)
+ return -EINVAL;
+
+ file->private_data = buf;
+
+ return nonseekable_open(inode, file);
+}
+
+static ssize_t atk_debugfs_ggrp_read(struct file *file, char __user *buf,
+ size_t count, loff_t *pos)
+{
+ char *str = file->private_data;
+ size_t len = strlen(str);
+
+ return simple_read_from_buffer(buf, count, pos, str, len);
+}
+
+static int atk_debugfs_ggrp_release(struct inode *inode, struct file *file)
+{
+ kfree(file->private_data);
+ return 0;
+}
+
+static const struct file_operations atk_debugfs_ggrp_fops = {
+ .read = atk_debugfs_ggrp_read,
+ .open = atk_debugfs_ggrp_open,
+ .release = atk_debugfs_ggrp_release,
+};
+
+static void atk_debugfs_init(struct atk_data *data)
+{
+ struct dentry *d;
+ struct dentry *f;
+
+ data->debugfs.id = 0;
+
+ d = debugfs_create_dir("asus_atk0110", NULL);
+ if (!d || IS_ERR(d))
+ return;
+
+ f = debugfs_create_x32("id", S_IRUSR | S_IWUSR, d, &data->debugfs.id);
+ if (!f || IS_ERR(f))
+ goto cleanup;
+
+ f = debugfs_create_file("gitm", S_IRUSR, d, data,
+ &atk_debugfs_gitm);
+ if (!f || IS_ERR(f))
+ goto cleanup;
+
+ f = debugfs_create_file("ggrp", S_IRUSR, d, data,
+ &atk_debugfs_ggrp_fops);
+ if (!f || IS_ERR(f))
+ goto cleanup;
+
+ data->debugfs.root = d;
+
+ return;
+cleanup:
+ debugfs_remove_recursive(d);
+}
+
+static void atk_debugfs_cleanup(struct atk_data *data)
+{
+ debugfs_remove_recursive(data->debugfs.root);
+}
+
+#else /* CONFIG_DEBUG_FS */
+
+static void atk_debugfs_init(struct atk_data *data)
+{
+}
+
+static void atk_debugfs_cleanup(struct atk_data *data)
+{
+}
+#endif
+
static int atk_add_sensor(struct atk_data *data, union acpi_object *obj)
{
struct device *dev = &data->acpi_dev->dev;
sensor->data = data;
sensor->id = flags->integer.value;
sensor->limit1 = limit1->integer.value;
- sensor->limit2 = limit2->integer.value;
+ if (data->old_interface)
+ sensor->limit2 = limit2->integer.value;
+ else
+ /* The upper limit is expressed as delta from lower limit */
+ sensor->limit2 = sensor->limit1 + limit2->integer.value;
snprintf(sensor->input_attr_name, ATTR_NAME_SIZE,
"%s%d_input", base_name, start + *num);
return ret;
}
-static int atk_enumerate_new_hwmon(struct atk_data *data)
+static int atk_ec_present(struct atk_data *data)
{
struct device *dev = &data->acpi_dev->dev;
- struct acpi_buffer buf;
- acpi_status ret;
- struct acpi_object_list params;
- union acpi_object id;
union acpi_object *pack;
- int err;
+ union acpi_object *ec;
+ int ret;
int i;
- dev_dbg(dev, "Enumerating hwmon sensors\n");
+ pack = atk_ggrp(data, ATK_MUX_MGMT);
+ if (IS_ERR(pack)) {
+ if (PTR_ERR(pack) == -ENOENT) {
+ /* The MGMT class does not exists - that's ok */
+ dev_dbg(dev, "Class %#llx not found\n", ATK_MUX_MGMT);
+ return 0;
+ }
+ return PTR_ERR(pack);
+ }
- id.type = ACPI_TYPE_INTEGER;
- id.integer.value = ATK_MUX_HWMON;
- params.count = 1;
- params.pointer = &id;
+ /* Search the EC */
+ ec = NULL;
+ for (i = 0; i < pack->package.count; i++) {
+ union acpi_object *obj = &pack->package.elements[i];
+ union acpi_object *id;
- buf.length = ACPI_ALLOCATE_BUFFER;
- ret = acpi_evaluate_object_typed(data->enumerate_handle, NULL, ¶ms,
- &buf, ACPI_TYPE_PACKAGE);
- if (ret != AE_OK) {
- dev_warn(dev, METHOD_ENUMERATE ": ACPI exception: %s\n",
- acpi_format_exception(ret));
- return -ENODEV;
+ if (obj->type != ACPI_TYPE_PACKAGE)
+ continue;
+
+ id = &obj->package.elements[0];
+ if (id->type != ACPI_TYPE_INTEGER)
+ continue;
+
+ if (id->integer.value == ATK_EC_ID) {
+ ec = obj;
+ break;
+ }
}
- /* Result must be a package */
- pack = buf.pointer;
+ ret = (ec != NULL);
+ if (!ret)
+ /* The system has no EC */
+ dev_dbg(dev, "EC not found\n");
- if (pack->package.count < 1) {
- dev_dbg(dev, "%s: hwmon package is too small: %d\n", __func__,
- pack->package.count);
- err = -EINVAL;
- goto out;
+ ACPI_FREE(pack);
+ return ret;
+}
+
+static int atk_ec_enabled(struct atk_data *data)
+{
+ struct device *dev = &data->acpi_dev->dev;
+ union acpi_object *obj;
+ struct atk_acpi_ret_buffer *buf;
+ int err;
+
+ obj = atk_gitm(data, ATK_EC_ID);
+ if (IS_ERR(obj)) {
+ dev_err(dev, "Unable to query EC status\n");
+ return PTR_ERR(obj);
+ }
+ buf = (struct atk_acpi_ret_buffer *)obj->buffer.pointer;
+
+ if (buf->flags == 0) {
+ dev_err(dev, "Unable to query EC status\n");
+ err = -EIO;
+ } else {
+ err = (buf->value != 0);
+ dev_dbg(dev, "EC is %sabled\n",
+ err ? "en" : "dis");
+ }
+
+ ACPI_FREE(obj);
+ return err;
+}
+
+static int atk_ec_ctl(struct atk_data *data, int enable)
+{
+ struct device *dev = &data->acpi_dev->dev;
+ union acpi_object *obj;
+ struct atk_acpi_input_buf sitm;
+ struct atk_acpi_ret_buffer *ec_ret;
+ int err = 0;
+
+ sitm.id = ATK_EC_ID;
+ sitm.param1 = enable;
+ sitm.param2 = 0;
+
+ obj = atk_sitm(data, &sitm);
+ if (IS_ERR(obj)) {
+ dev_err(dev, "Failed to %sable the EC\n",
+ enable ? "en" : "dis");
+ return PTR_ERR(obj);
+ }
+ ec_ret = (struct atk_acpi_ret_buffer *)obj->buffer.pointer;
+ if (ec_ret->flags == 0) {
+ dev_err(dev, "Failed to %sable the EC\n",
+ enable ? "en" : "dis");
+ err = -EIO;
+ } else {
+ dev_info(dev, "EC %sabled\n",
+ enable ? "en" : "dis");
+ }
+
+ ACPI_FREE(obj);
+ return err;
+}
+
+static int atk_enumerate_new_hwmon(struct atk_data *data)
+{
+ struct device *dev = &data->acpi_dev->dev;
+ union acpi_object *pack;
+ int err;
+ int i;
+
+ err = atk_ec_present(data);
+ if (err < 0)
+ return err;
+ if (err) {
+ err = atk_ec_enabled(data);
+ if (err < 0)
+ return err;
+ /* If the EC was disabled we will disable it again on unload */
+ data->disable_ec = err;
+
+ err = atk_ec_ctl(data, 1);
+ if (err) {
+ data->disable_ec = false;
+ return err;
+ }
}
+ dev_dbg(dev, "Enumerating hwmon sensors\n");
+
+ pack = atk_ggrp(data, ATK_MUX_HWMON);
+ if (IS_ERR(pack))
+ return PTR_ERR(pack);
+
for (i = 0; i < pack->package.count; i++) {
union acpi_object *obj = &pack->package.elements[i];
err = data->voltage_count + data->temperature_count + data->fan_count;
-out:
- ACPI_FREE(buf.pointer);
+ ACPI_FREE(pack);
return err;
}
int err;
list_for_each_entry(s, &data->sensor_list, list) {
+ sysfs_attr_init(&s->input_attr.attr);
err = device_create_file(data->hwmon_dev, &s->input_attr);
if (err)
return err;
+ sysfs_attr_init(&s->label_attr.attr);
err = device_create_file(data->hwmon_dev, &s->label_attr);
if (err)
return err;
+ sysfs_attr_init(&s->limit1_attr.attr);
err = device_create_file(data->hwmon_dev, &s->limit1_attr);
if (err)
return err;
+ sysfs_attr_init(&s->limit2_attr.attr);
err = device_create_file(data->hwmon_dev, &s->limit2_attr);
if (err)
return err;
return err;
}
-static int atk_check_old_if(struct atk_data *data)
+static int atk_probe_if(struct atk_data *data)
{
struct device *dev = &data->acpi_dev->dev;
acpi_handle ret;
acpi_status status;
+ int err = 0;
/* RTMP: read temperature */
status = acpi_get_handle(data->atk_handle, METHOD_OLD_READ_TMP, &ret);
- if (status != AE_OK) {
+ if (ACPI_SUCCESS(status))
+ data->rtmp_handle = ret;
+ else
dev_dbg(dev, "method " METHOD_OLD_READ_TMP " not found: %s\n",
acpi_format_exception(status));
- return -ENODEV;
- }
- data->rtmp_handle = ret;
/* RVLT: read voltage */
status = acpi_get_handle(data->atk_handle, METHOD_OLD_READ_VLT, &ret);
- if (status != AE_OK) {
+ if (ACPI_SUCCESS(status))
+ data->rvlt_handle = ret;
+ else
dev_dbg(dev, "method " METHOD_OLD_READ_VLT " not found: %s\n",
acpi_format_exception(status));
- return -ENODEV;
- }
- data->rvlt_handle = ret;
/* RFAN: read fan status */
status = acpi_get_handle(data->atk_handle, METHOD_OLD_READ_FAN, &ret);
- if (status != AE_OK) {
+ if (ACPI_SUCCESS(status))
+ data->rfan_handle = ret;
+ else
dev_dbg(dev, "method " METHOD_OLD_READ_FAN " not found: %s\n",
acpi_format_exception(status));
- return -ENODEV;
- }
- data->rfan_handle = ret;
-
- return 0;
-}
-
-static int atk_check_new_if(struct atk_data *data)
-{
- struct device *dev = &data->acpi_dev->dev;
- acpi_handle ret;
- acpi_status status;
/* Enumeration */
status = acpi_get_handle(data->atk_handle, METHOD_ENUMERATE, &ret);
- if (status != AE_OK) {
+ if (ACPI_SUCCESS(status))
+ data->enumerate_handle = ret;
+ else
dev_dbg(dev, "method " METHOD_ENUMERATE " not found: %s\n",
acpi_format_exception(status));
- return -ENODEV;
- }
- data->enumerate_handle = ret;
/* De-multiplexer (read) */
status = acpi_get_handle(data->atk_handle, METHOD_READ, &ret);
- if (status != AE_OK) {
+ if (ACPI_SUCCESS(status))
+ data->read_handle = ret;
+ else
dev_dbg(dev, "method " METHOD_READ " not found: %s\n",
acpi_format_exception(status));
- return -ENODEV;
- }
- data->read_handle = ret;
- return 0;
+ /* De-multiplexer (write) */
+ status = acpi_get_handle(data->atk_handle, METHOD_WRITE, &ret);
+ if (ACPI_SUCCESS(status))
+ data->write_handle = ret;
+ else
+ dev_dbg(dev, "method " METHOD_WRITE " not found: %s\n",
+ acpi_format_exception(status));
+
+ /* Check for hwmon methods: first check "old" style methods; note that
+ * both may be present: in this case we stick to the old interface;
+ * analysis of multiple DSDTs indicates that when both interfaces
+ * are present the new one (GGRP/GITM) is not functional.
+ */
+ if (data->rtmp_handle && data->rvlt_handle && data->rfan_handle)
+ data->old_interface = true;
+ else if (data->enumerate_handle && data->read_handle &&
+ data->write_handle)
+ data->old_interface = false;
+ else
+ err = -ENODEV;
+
+ return err;
}
static int atk_add(struct acpi_device *device)
data->acpi_dev = device;
data->atk_handle = device->handle;
INIT_LIST_HEAD(&data->sensor_list);
+ data->disable_ec = false;
buf.length = ACPI_ALLOCATE_BUFFER;
ret = acpi_evaluate_object_typed(data->atk_handle, BOARD_ID, NULL,
&buf, ACPI_TYPE_PACKAGE);
if (ret != AE_OK) {
dev_dbg(&device->dev, "atk: method MBIF not found\n");
- err = -ENODEV;
- goto out;
+ } else {
+ obj = buf.pointer;
+ if (obj->package.count >= 2) {
+ union acpi_object *id = &obj->package.elements[1];
+ if (id->type == ACPI_TYPE_STRING)
+ dev_dbg(&device->dev, "board ID = %s\n",
+ id->string.pointer);
+ }
+ ACPI_FREE(buf.pointer);
}
- obj = buf.pointer;
- if (obj->package.count >= 2 &&
- obj->package.elements[1].type == ACPI_TYPE_STRING) {
- dev_dbg(&device->dev, "board ID = %s\n",
- obj->package.elements[1].string.pointer);
+ err = atk_probe_if(data);
+ if (err) {
+ dev_err(&device->dev, "No usable hwmon interface detected\n");
+ goto out;
}
- ACPI_FREE(buf.pointer);
- /* Check for hwmon methods: first check "old" style methods; note that
- * both may be present: in this case we stick to the old interface;
- * analysis of multiple DSDTs indicates that when both interfaces
- * are present the new one (GGRP/GITM) is not functional.
- */
- err = atk_check_old_if(data);
- if (!err) {
+ if (data->old_interface) {
dev_dbg(&device->dev, "Using old hwmon interface\n");
- data->old_interface = true;
+ err = atk_enumerate_old_hwmon(data);
} else {
- err = atk_check_new_if(data);
- if (err)
- goto out;
-
dev_dbg(&device->dev, "Using new hwmon interface\n");
- data->old_interface = false;
- }
-
- if (data->old_interface)
- err = atk_enumerate_old_hwmon(data);
- else
err = atk_enumerate_new_hwmon(data);
+ }
if (err < 0)
goto out;
if (err == 0) {
if (err)
goto cleanup;
+ atk_debugfs_init(data);
+
device->driver_data = data;
return 0;
cleanup:
atk_free_sensors(data);
out:
+ if (data->disable_ec)
+ atk_ec_ctl(data, 0);
kfree(data);
return err;
}
device->driver_data = NULL;
+ atk_debugfs_cleanup(data);
+
atk_remove_files(data);
atk_free_sensors(data);
hwmon_device_unregister(data->hwmon_dev);
+ if (data->disable_ec) {
+ if (atk_ec_ctl(data, 0))
+ dev_err(&device->dev, "Failed to disable EC\n");
+ }
+
kfree(data);
return 0;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff