static int xgene_enet_reset(struct xgene_enet_pdata *pdata)
{
struct device *dev = &pdata->pdev->dev;
if (!xgene_ring_mgr_init(pdata))
return -ENODEV;
if (dev->of_node) {
clk_prepare_enable(pdata->clk);
udelay(5);
clk_disable_unprepare(pdata->clk);
udelay(5);
clk_prepare_enable(pdata->clk);
udelay(5);
} else {
#ifdef CONFIG_ACPI
if (acpi_has_method(ACPI_HANDLE(&pdata->pdev->dev), "_RST")) {
acpi_evaluate_object(ACPI_HANDLE(&pdata->pdev->dev),
"_RST", NULL, NULL);
} else if (acpi_has_method(ACPI_HANDLE(&pdata->pdev->dev),
"_INI")) {
acpi_evaluate_object(ACPI_HANDLE(&pdata->pdev->dev),
"_INI", NULL, NULL);
}
#endif
}
xgene_enet_ecc_init(pdata);
xgene_enet_config_ring_if_assoc(pdata);
return 0;
}
static int acpi_processor_get_lpi_info(struct acpi_processor *pr)
{
int ret, i;
acpi_status status;
acpi_handle handle = pr->handle, pr_ahandle;
struct acpi_device *d = NULL;
struct acpi_lpi_states_array info[2], *tmp, *prev, *curr;
if (!osc_pc_lpi_support_confirmed)
return -EOPNOTSUPP;
if (!acpi_has_method(handle, "_LPI"))
return -EINVAL;
flat_state_cnt = 0;
prev = &info[0];
curr = &info[1];
handle = pr->handle;
ret = acpi_processor_evaluate_lpi(handle, prev);
if (ret)
return ret;
flatten_lpi_states(pr, prev, NULL);
status = acpi_get_parent(handle, &pr_ahandle);
while (ACPI_SUCCESS(status)) {
acpi_bus_get_device(pr_ahandle, &d);
handle = pr_ahandle;
if (strcmp(acpi_device_hid(d), ACPI_PROCESSOR_CONTAINER_HID))
break;
/* can be optional ? */
if (!acpi_has_method(handle, "_LPI"))
break;
ret = acpi_processor_evaluate_lpi(handle, curr);
if (ret)
break;
/* flatten all the LPI states in this level of hierarchy */
flatten_lpi_states(pr, curr, prev);
tmp = prev, prev = curr, curr = tmp;
status = acpi_get_parent(handle, &pr_ahandle);
}
pr->power.count = flat_state_cnt;
/* reset the index after flattening */
for (i = 0; i < pr->power.count; i++)
pr->power.lpi_states[i].index = i;
/* Tell driver that _LPI is supported. */
pr->flags.has_lpi = 1;
pr->flags.power = 1;
return 0;
}
static const char *find_hci_method(acpi_handle handle)
{
if (acpi_has_method(handle, "GHCI"))
return "GHCI";
if (acpi_has_method(handle, "SPFC"))
return "SPFC";
return NULL;
}
static int pcihp_is_ejectable(acpi_handle handle)
{
acpi_status status;
unsigned long long removable;
if (!acpi_has_method(handle, "_ADR"))
return 0;
if (acpi_has_method(handle, "_EJ0"))
return 1;
status = acpi_evaluate_integer(handle, "_RMV", NULL, &removable);
if (ACPI_SUCCESS(status) && removable)
return 1;
return 0;
}
/**
* acpi_dev_get_resources - Get current resources of a device.
* @adev: ACPI device node to get the resources for.
* @list: Head of the resultant list of resources (must be empty).
* @preproc: The caller's preprocessing routine.
* @preproc_data: Pointer passed to the caller's preprocessing routine.
*
* Evaluate the _CRS method for the given device node and process its output by
* (1) executing the @preproc() rountine provided by the caller, passing the
* resource pointer and @preproc_data to it as arguments, for each ACPI resource
* returned and (2) converting all of the returned ACPI resources into struct
* resource objects if possible. If the return value of @preproc() in step (1)
* is different from 0, step (2) is not applied to the given ACPI resource and
* if that value is negative, the whole processing is aborted and that value is
* returned as the final error code.
*
* The resultant struct resource objects are put on the list pointed to by
* @list, that must be empty initially, as members of struct resource_entry
* objects. Callers of this routine should use %acpi_dev_free_resource_list() to
* free that list.
*
* The number of resources in the output list is returned on success, an error
* code reflecting the error condition is returned otherwise.
*/
int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
int (*preproc)(struct acpi_resource *, void *),
void *preproc_data)
{
struct res_proc_context c;
acpi_status status;
if (!adev || !adev->handle || !list_empty(list))
return -EINVAL;
if (!acpi_has_method(adev->handle, METHOD_NAME__CRS))
return 0;
c.list = list;
c.preproc = preproc;
c.preproc_data = preproc_data;
c.count = 0;
c.error = 0;
status = acpi_walk_resources(adev->handle, METHOD_NAME__CRS,
acpi_dev_process_resource, &c);
if (ACPI_FAILURE(status)) {
acpi_dev_free_resource_list(list);
return c.error ? c.error : -EIO;
}
return c.count;
}
int sys_set_trip_temp(struct thermal_zone_device *tzone, int trip,
unsigned long temp)
{
struct int3403_priv *priv = tzone->devdata;
struct acpi_device *device = priv->adev;
struct int3403_sensor *obj = priv->priv;
acpi_status status;
char name[10];
int ret = 0;
snprintf(name, sizeof(name), "PAT%d", trip);
if (acpi_has_method(device->handle, name)) {
status = acpi_execute_simple_method(device->handle, name,
MILLI_CELSIUS_TO_DECI_KELVIN(temp,
KELVIN_OFFSET));
if (ACPI_FAILURE(status))
ret = -EIO;
else
obj->thresholds[trip] = temp;
} else {
ret = -EIO;
dev_err(&device->dev, "sys_set_trip_temp: method not found\n");
}
return ret;
}
static acpi_status
acpi_backlight_cap_match(acpi_handle handle, u32 level, void *context,
void **retyurn_value)
{
long *cap = context;
if (acpi_has_method(handle, "_BCM") &&
acpi_has_method(handle, "_BCL")) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found generic backlight "
"support\n"));
*cap |= ACPI_VIDEO_BACKLIGHT;
if (!acpi_has_method(handle, "_BQC"))
printk(KERN_WARNING FW_BUG PREFIX "No _BQC method, "
"cannot determine initial brightness\n");
/* We have backlight support, no need to scan further */
return AE_CTRL_TERMINATE;
}
return 0;
}
/* Returns true if the ACPI object is a video device which can be
* handled by video.ko.
* The device will get a Linux specific CID added in scan.c to
* identify the device as an ACPI graphics device
* Be aware that the graphics device may not be physically present
* Use acpi_video_get_capabilities() to detect general ACPI video
* capabilities of present cards
*/
long acpi_is_video_device(acpi_handle handle)
{
long video_caps = 0;
/* Is this device able to support video switching ? */
if (acpi_has_method(handle, "_DOD") || acpi_has_method(handle, "_DOS"))
video_caps |= ACPI_VIDEO_OUTPUT_SWITCHING;
/* Is this device able to retrieve a video ROM ? */
if (acpi_has_method(handle, "_ROM"))
video_caps |= ACPI_VIDEO_ROM_AVAILABLE;
/* Is this device able to configure which video head to be POSTed ? */
if (acpi_has_method(handle, "_VPO") &&
acpi_has_method(handle, "_GPD") &&
acpi_has_method(handle, "_SPD"))
video_caps |= ACPI_VIDEO_DEVICE_POSTING;
/* Only check for backlight functionality if one of the above hit. */
if (video_caps)
acpi_walk_namespace(ACPI_TYPE_DEVICE, handle,
ACPI_UINT32_MAX, acpi_backlight_cap_match, NULL,
&video_caps, NULL);
return video_caps;
}
static int acpi_thermal_set_cooling_mode(struct acpi_thermal *tz, int mode)
{
if (!tz)
return -EINVAL;
if (!acpi_has_method(tz->device->handle, "_SCP")) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "_SCP not present\n"));
return -ENODEV;
} else if (ACPI_FAILURE(acpi_execute_simple_method(tz->device->handle,
"_SCP", mode))) {
return -ENODEV;
}
return 0;
}
static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
{
acpi_status status = AE_OK;
unsigned long long tmp;
struct acpi_handle_list devices;
int valid = 0;
int i;
/* Critical Shutdown */
if (flag & ACPI_TRIPS_CRITICAL) {
status = acpi_evaluate_integer(tz->device->handle,
"_CRT", NULL, &tmp);
tz->trips.critical.temperature = tmp;
/*
* Treat freezing temperatures as invalid as well; some
* BIOSes return really low values and cause reboots at startup.
* Below zero (Celsius) values clearly aren't right for sure..
* ... so lets discard those as invalid.
*/
if (ACPI_FAILURE(status)) {
tz->trips.critical.flags.valid = 0;
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"No critical threshold\n"));
} else if (tmp <= 2732) {
pr_warn(FW_BUG "Invalid critical threshold (%llu)\n",
tmp);
tz->trips.critical.flags.valid = 0;
} else {
tz->trips.critical.flags.valid = 1;
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Found critical threshold [%lu]\n",
tz->trips.critical.temperature));
}
if (tz->trips.critical.flags.valid == 1) {
if (crt == -1) {
tz->trips.critical.flags.valid = 0;
} else if (crt > 0) {
unsigned long crt_k = CELSIUS_TO_DECI_KELVIN(crt);
/*
* Allow override critical threshold
*/
if (crt_k > tz->trips.critical.temperature)
pr_warn(PREFIX "Critical threshold %d C\n",
crt);
tz->trips.critical.temperature = crt_k;
}
}
}
/* Critical Sleep (optional) */
if (flag & ACPI_TRIPS_HOT) {
status = acpi_evaluate_integer(tz->device->handle,
"_HOT", NULL, &tmp);
if (ACPI_FAILURE(status)) {
tz->trips.hot.flags.valid = 0;
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"No hot threshold\n"));
} else {
tz->trips.hot.temperature = tmp;
tz->trips.hot.flags.valid = 1;
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Found hot threshold [%lu]\n",
tz->trips.hot.temperature));
}
}
/* Passive (optional) */
if (((flag & ACPI_TRIPS_PASSIVE) && tz->trips.passive.flags.valid) ||
(flag == ACPI_TRIPS_INIT)) {
valid = tz->trips.passive.flags.valid;
if (psv == -1) {
status = AE_SUPPORT;
} else if (psv > 0) {
tmp = CELSIUS_TO_DECI_KELVIN(psv);
status = AE_OK;
} else {
status = acpi_evaluate_integer(tz->device->handle,
"_PSV", NULL, &tmp);
}
if (ACPI_FAILURE(status))
tz->trips.passive.flags.valid = 0;
else {
tz->trips.passive.temperature = tmp;
tz->trips.passive.flags.valid = 1;
if (flag == ACPI_TRIPS_INIT) {
status = acpi_evaluate_integer(
tz->device->handle, "_TC1",
NULL, &tmp);
if (ACPI_FAILURE(status))
tz->trips.passive.flags.valid = 0;
else
tz->trips.passive.tc1 = tmp;
status = acpi_evaluate_integer(
tz->device->handle, "_TC2",
NULL, &tmp);
if (ACPI_FAILURE(status))
tz->trips.passive.flags.valid = 0;
else
tz->trips.passive.tc2 = tmp;
status = acpi_evaluate_integer(
tz->device->handle, "_TSP",
NULL, &tmp);
if (ACPI_FAILURE(status))
tz->trips.passive.flags.valid = 0;
else
tz->trips.passive.tsp = tmp;
}
}
}
if ((flag & ACPI_TRIPS_DEVICES) && tz->trips.passive.flags.valid) {
memset(&devices, 0, sizeof(struct acpi_handle_list));
status = acpi_evaluate_reference(tz->device->handle, "_PSL",
NULL, &devices);
if (ACPI_FAILURE(status)) {
pr_warn(PREFIX "Invalid passive threshold\n");
tz->trips.passive.flags.valid = 0;
}
else
tz->trips.passive.flags.valid = 1;
if (memcmp(&tz->trips.passive.devices, &devices,
sizeof(struct acpi_handle_list))) {
memcpy(&tz->trips.passive.devices, &devices,
sizeof(struct acpi_handle_list));
ACPI_THERMAL_TRIPS_EXCEPTION(flag, "device");
}
}
if ((flag & ACPI_TRIPS_PASSIVE) || (flag & ACPI_TRIPS_DEVICES)) {
if (valid != tz->trips.passive.flags.valid)
ACPI_THERMAL_TRIPS_EXCEPTION(flag, "state");
}
/* Active (optional) */
for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++) {
char name[5] = { '_', 'A', 'C', ('0' + i), '\0' };
valid = tz->trips.active[i].flags.valid;
if (act == -1)
break; /* disable all active trip points */
if ((flag == ACPI_TRIPS_INIT) || ((flag & ACPI_TRIPS_ACTIVE) &&
tz->trips.active[i].flags.valid)) {
status = acpi_evaluate_integer(tz->device->handle,
name, NULL, &tmp);
if (ACPI_FAILURE(status)) {
tz->trips.active[i].flags.valid = 0;
if (i == 0)
break;
if (act <= 0)
break;
if (i == 1)
tz->trips.active[0].temperature =
CELSIUS_TO_DECI_KELVIN(act);
else
/*
* Don't allow override higher than
* the next higher trip point
*/
tz->trips.active[i - 1].temperature =
(tz->trips.active[i - 2].temperature <
CELSIUS_TO_DECI_KELVIN(act) ?
tz->trips.active[i - 2].temperature :
CELSIUS_TO_DECI_KELVIN(act));
break;
} else {
tz->trips.active[i].temperature = tmp;
tz->trips.active[i].flags.valid = 1;
}
}
name[2] = 'L';
if ((flag & ACPI_TRIPS_DEVICES) && tz->trips.active[i].flags.valid ) {
memset(&devices, 0, sizeof(struct acpi_handle_list));
status = acpi_evaluate_reference(tz->device->handle,
name, NULL, &devices);
if (ACPI_FAILURE(status)) {
pr_warn(PREFIX "Invalid active%d threshold\n",
i);
tz->trips.active[i].flags.valid = 0;
}
else
tz->trips.active[i].flags.valid = 1;
if (memcmp(&tz->trips.active[i].devices, &devices,
sizeof(struct acpi_handle_list))) {
memcpy(&tz->trips.active[i].devices, &devices,
sizeof(struct acpi_handle_list));
ACPI_THERMAL_TRIPS_EXCEPTION(flag, "device");
}
}
if ((flag & ACPI_TRIPS_ACTIVE) || (flag & ACPI_TRIPS_DEVICES))
if (valid != tz->trips.active[i].flags.valid)
ACPI_THERMAL_TRIPS_EXCEPTION(flag, "state");
if (!tz->trips.active[i].flags.valid)
break;
}
if ((flag & ACPI_TRIPS_DEVICES)
&& acpi_has_method(tz->device->handle, "_TZD")) {
memset(&devices, 0, sizeof(devices));
status = acpi_evaluate_reference(tz->device->handle, "_TZD",
NULL, &devices);
if (ACPI_SUCCESS(status)
&& memcmp(&tz->devices, &devices, sizeof(devices))) {
tz->devices = devices;
ACPI_THERMAL_TRIPS_EXCEPTION(flag, "device");
}
}
return 0;
}
/**
* acpi_parse_trt - Thermal Relationship Table _TRT for passive cooling
*
* @handle: ACPI handle of the device contains _TRT
* @trt_count: the number of valid entries resulted from parsing _TRT
* @trtp: pointer to pointer of array of _TRT entries in parsing result
* @create_dev: whether to create platform devices for target and source
*
*/
int acpi_parse_trt(acpi_handle handle, int *trt_count, struct trt **trtp,
bool create_dev)
{
acpi_status status;
int result = 0;
int i;
int nr_bad_entries = 0;
struct trt *trts;
struct acpi_device *adev;
union acpi_object *p;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
struct acpi_buffer element = { 0, NULL };
struct acpi_buffer trt_format = { sizeof("RRNNNNNN"), "RRNNNNNN" };
if (!acpi_has_method(handle, "_TRT"))
return -ENODEV;
status = acpi_evaluate_object(handle, "_TRT", NULL, &buffer);
if (ACPI_FAILURE(status))
return -ENODEV;
p = buffer.pointer;
if (!p || (p->type != ACPI_TYPE_PACKAGE)) {
pr_err("Invalid _TRT data\n");
result = -EFAULT;
goto end;
}
*trt_count = p->package.count;
trts = kcalloc(*trt_count, sizeof(struct trt), GFP_KERNEL);
if (!trts) {
result = -ENOMEM;
goto end;
}
for (i = 0; i < *trt_count; i++) {
struct trt *trt = &trts[i - nr_bad_entries];
element.length = sizeof(struct trt);
element.pointer = trt;
status = acpi_extract_package(&(p->package.elements[i]),
&trt_format, &element);
if (ACPI_FAILURE(status)) {
nr_bad_entries++;
pr_warn("_TRT package %d is invalid, ignored\n", i);
continue;
}
if (!create_dev)
continue;
result = acpi_bus_get_device(trt->source, &adev);
if (result)
pr_warn("Failed to get source ACPI device\n");
result = acpi_bus_get_device(trt->target, &adev);
if (result)
pr_warn("Failed to get target ACPI device\n");
}
result = 0;
*trtp = trts;
/* don't count bad entries */
*trt_count -= nr_bad_entries;
end:
kfree(buffer.pointer);
return result;
}
/**
* acpi_parse_art - Parse Active Relationship Table _ART
*
* @handle: ACPI handle of the device contains _ART
* @art_count: the number of valid entries resulted from parsing _ART
* @artp: pointer to pointer of array of art entries in parsing result
* @create_dev: whether to create platform devices for target and source
*
*/
int acpi_parse_art(acpi_handle handle, int *art_count, struct art **artp,
bool create_dev)
{
acpi_status status;
int result = 0;
int i;
int nr_bad_entries = 0;
struct art *arts;
struct acpi_device *adev;
union acpi_object *p;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
struct acpi_buffer element = { 0, NULL };
struct acpi_buffer art_format = {
sizeof("RRNNNNNNNNNNN"), "RRNNNNNNNNNNN" };
if (!acpi_has_method(handle, "_ART"))
return 0;
status = acpi_evaluate_object(handle, "_ART", NULL, &buffer);
if (ACPI_FAILURE(status))
return -ENODEV;
p = buffer.pointer;
if (!p || (p->type != ACPI_TYPE_PACKAGE)) {
pr_err("Invalid _ART data\n");
result = -EFAULT;
goto end;
}
/* ignore p->package.elements[0], as this is _ART Revision field */
*art_count = p->package.count - 1;
arts = kzalloc(*art_count * sizeof(struct art), GFP_KERNEL);
if (!arts) {
result = -ENOMEM;
goto end;
}
for (i = 0; i < *art_count; i++) {
struct art *art = &arts[i - nr_bad_entries];
element.length = sizeof(struct art);
element.pointer = art;
status = acpi_extract_package(&(p->package.elements[i + 1]),
&art_format, &element);
if (ACPI_FAILURE(status)) {
pr_warn("_ART package %d is invalid, ignored", i);
nr_bad_entries++;
continue;
}
if (!create_dev)
continue;
if (art->source) {
result = acpi_bus_get_device(art->source, &adev);
if (!result)
acpi_create_platform_device(adev);
else
pr_warn("Failed to get source ACPI device\n");
}
if (art->target) {
result = acpi_bus_get_device(art->target, &adev);
if (!result)
acpi_create_platform_device(adev);
else
pr_warn("Failed to get source ACPI device\n");
}
}
*artp = arts;
/* don't count bad entries */
*art_count -= nr_bad_entries;
end:
kfree(buffer.pointer);
return result;
}
static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
{
acpi_status status;
acpi_handle ec_handle;
int error;
u32 hci_result;
dev->hotkey_dev = input_allocate_device();
if (!dev->hotkey_dev)
return -ENOMEM;
dev->hotkey_dev->name = "Toshiba input device";
dev->hotkey_dev->phys = "toshiba_acpi/input0";
dev->hotkey_dev->id.bustype = BUS_HOST;
error = sparse_keymap_setup(dev->hotkey_dev, toshiba_acpi_keymap, NULL);
if (error)
goto err_free_dev;
/*
* For some machines the SCI responsible for providing hotkey
* notification doesn't fire. We can trigger the notification
* whenever the Fn key is pressed using the NTFY method, if
* supported, so if it's present set up an i8042 key filter
* for this purpose.
*/
status = AE_ERROR;
ec_handle = ec_get_handle();
if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
error = i8042_install_filter(toshiba_acpi_i8042_filter);
if (error) {
pr_err("Error installing key filter\n");
goto err_free_keymap;
}
dev->ntfy_supported = 1;
}
/*
* Determine hotkey query interface. Prefer using the INFO
* method when it is available.
*/
if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
dev->info_supported = 1;
else {
hci_write1(dev, HCI_SYSTEM_EVENT, 1, &hci_result);
if (hci_result == HCI_SUCCESS)
dev->system_event_supported = 1;
}
if (!dev->info_supported && !dev->system_event_supported) {
pr_warn("No hotkey query interface found\n");
goto err_remove_filter;
}
status = acpi_evaluate_object(dev->acpi_dev->handle, "ENAB", NULL, NULL);
if (ACPI_FAILURE(status)) {
pr_info("Unable to enable hotkeys\n");
error = -ENODEV;
goto err_remove_filter;
}
error = input_register_device(dev->hotkey_dev);
if (error) {
pr_info("Unable to register input device\n");
goto err_remove_filter;
}
hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE, &hci_result);
return 0;
err_remove_filter:
if (dev->ntfy_supported)
i8042_remove_filter(toshiba_acpi_i8042_filter);
err_free_keymap:
sparse_keymap_free(dev->hotkey_dev);
err_free_dev:
input_free_device(dev->hotkey_dev);
dev->hotkey_dev = NULL;
return error;
}
