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ACPI: use more understandable bus_id for ACPI devices 

Some of the ACPI devices use the internal fake hids
which are exposed to userspace as devces' bus_id after sysfs conversion.
To make it more friendly, we convert them to more understandable strings.

For those devices w/o PNPids, we use "device:instance_no" as the bus_id
instead of "PNPIDNON:instance_no".

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
hifive-unleashed-5.1
Zhang Rui 2007-01-04 15:03:18 +08:00 committed by Len Brown
parent 2786f6e388
commit bb0958544f
3 changed files with 12 additions and 12 deletions
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6
drivers/acpi/scan.c
View File

@ -26,7 +26,7 @@ DEFINE_SPINLOCK(acpi_device_lock);
LIST_HEAD(acpi_wakeup_device_list);
struct acpi_device_bus_id{
char bus_id[9];
char bus_id[15];
unsigned int instance_no;
struct list_head node;
};
@ -342,7 +342,7 @@ static int acpi_device_register(struct acpi_device *device,
* If failed, create one and link it into acpi_bus_id_list
*/
list_for_each_entry(acpi_device_bus_id, &acpi_bus_id_list, node) {
if(!strcmp(acpi_device_bus_id->bus_id, device->flags.hardware_id? device->pnp.hardware_id : "PNPIDNON")) {
if(!strcmp(acpi_device_bus_id->bus_id, device->flags.hardware_id? device->pnp.hardware_id : "device")) {
acpi_device_bus_id->instance_no ++;
found = 1;
kfree(new_bus_id);
@ -351,7 +351,7 @@ static int acpi_device_register(struct acpi_device *device,
}
if(!found) {
acpi_device_bus_id = new_bus_id;
strcpy(acpi_device_bus_id->bus_id, device->flags.hardware_id ? device->pnp.hardware_id : "PNPIDNON");
strcpy(acpi_device_bus_id->bus_id, device->flags.hardware_id ? device->pnp.hardware_id : "device");
acpi_device_bus_id->instance_no = 0;
list_add_tail(&acpi_device_bus_id->node, &acpi_bus_id_list);
}

2
include/acpi/acpi_bus.h
View File

@ -184,7 +184,7 @@ struct acpi_device_dir {
typedef char acpi_bus_id[5];
typedef unsigned long acpi_bus_address;
typedef char acpi_hardware_id[9];
typedef char acpi_hardware_id[15];
typedef char acpi_unique_id[9];
typedef char acpi_device_name[40];
typedef char acpi_device_class[20];

16
include/acpi/acpi_drivers.h
View File

@ -36,14 +36,14 @@
/* _HID definitions */
#define ACPI_POWER_HID "ACPI_PWR"
#define ACPI_PROCESSOR_HID "ACPI_CPU"
#define ACPI_SYSTEM_HID "ACPI_SYS"
#define ACPI_THERMAL_HID "ACPI_THM"
#define ACPI_BUTTON_HID_POWERF "ACPI_FPB"
#define ACPI_BUTTON_HID_SLEEPF "ACPI_FSB"
#define ACPI_VIDEO_HID "ACPI_VID"
#define ACPI_POWER_HID "power_resource"
#define ACPI_PROCESSOR_HID "processor"
#define ACPI_SYSTEM_HID "acpi_system"
#define ACPI_THERMAL_HID "thermal"
#define ACPI_BUTTON_HID_POWERF "button_power"
#define ACPI_BUTTON_HID_SLEEPF "button_sleep"
#define ACPI_VIDEO_HID "video"
#define ACPI_BAY_HID "bay"
/* --------------------------------------------------------------------------
PCI
-------------------------------------------------------------------------- */