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-rw-r--r--drivers/acpi/asus_acpi.c367
1 files changed, 249 insertions, 118 deletions
diff --git a/drivers/acpi/asus_acpi.c b/drivers/acpi/asus_acpi.c
index f4c87750dbf2..e9ee4c52a5f6 100644
--- a/drivers/acpi/asus_acpi.c
+++ b/drivers/acpi/asus_acpi.c
@@ -2,7 +2,7 @@
* asus_acpi.c - Asus Laptop ACPI Extras
*
*
- * Copyright (C) 2002, 2003, 2004 Julien Lerouge, Karol Kozimor
+ * Copyright (C) 2002-2005 Julien Lerouge, 2003-2006 Karol Kozimor
*
* 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
@@ -26,11 +26,8 @@
* Pontus Fuchs - Helper functions, cleanup
* Johann Wiesner - Small compile fixes
* John Belmonte - ACPI code for Toshiba laptop was a good starting point.
+ * Éric Burghard - LED display support for W1N
*
- * TODO:
- * add Fn key status
- * Add mode selection on module loading (parameter) -> still necessary?
- * Complete display switching -- may require dirty hacks or calling _DOS?
*/
#include <linux/kernel.h>
@@ -42,12 +39,14 @@
#include <acpi/acpi_bus.h>
#include <asm/uaccess.h>
-#define ASUS_ACPI_VERSION "0.29"
+#define ASUS_ACPI_VERSION "0.30"
#define PROC_ASUS "asus" //the directory
#define PROC_MLED "mled"
#define PROC_WLED "wled"
#define PROC_TLED "tled"
+#define PROC_BT "bluetooth"
+#define PROC_LEDD "ledd"
#define PROC_INFO "info"
#define PROC_LCD "lcd"
#define PROC_BRN "brn"
@@ -67,9 +66,10 @@
/*
* Flags for hotk status
*/
-#define MLED_ON 0x01 //is MLED ON ?
-#define WLED_ON 0x02
-#define TLED_ON 0x04
+#define MLED_ON 0x01 //mail LED
+#define WLED_ON 0x02 //wireless LED
+#define TLED_ON 0x04 //touchpad LED
+#define BT_ON 0x08 //internal Bluetooth
MODULE_AUTHOR("Julien Lerouge, Karol Kozimor");
MODULE_DESCRIPTION(ACPI_HOTK_NAME);
@@ -92,7 +92,10 @@ struct model_data {
char *wled_status; //node to handle wled reading_______A
char *mt_tled; //method to handle tled_____________R
char *tled_status; //node to handle tled reading_______A
- char *mt_lcd_switch; //method to turn LCD ON/OFF_________A
+ char *mt_ledd; //method to handle LED display______R
+ char *mt_bt_switch; //method to switch Bluetooth on/off_R
+ char *bt_status; //no model currently supports this__?
+ char *mt_lcd_switch; //method to turn LCD on/off_________A
char *lcd_status; //node to read LCD panel state______A
char *brightness_up; //method to set brightness up_______A
char *brightness_down; //guess what ?______________________A
@@ -111,27 +114,31 @@ struct asus_hotk {
struct acpi_device *device; //the device we are in
acpi_handle handle; //the handle of the hotk device
char status; //status of the hotk, for LEDs, ...
+ u32 ledd_status; //status of the LED display
struct model_data *methods; //methods available on the laptop
u8 brightness; //brightness level
enum {
A1x = 0, //A1340D, A1300F
A2x, //A2500H
+ A4G, //A4700G
D1x, //D1
L2D, //L2000D
L3C, //L3800C
L3D, //L3400D
- L3H, //L3H, but also L2000E
+ L3H, //L3H, L2000E, L5D
L4R, //L4500R
L5x, //L5800C
L8L, //L8400L
M1A, //M1300A
M2E, //M2400E, L4400L
- M6N, //M6800N
- M6R, //M6700R
+ M6N, //M6800N, W3400N
+ M6R, //M6700R, A3000G
P30, //Samsung P30
S1x, //S1300A, but also L1400B and M2400A (L84F)
S2x, //S200 (J1 reported), Victor MP-XP7210
- xxN, //M2400N, M3700N, M5200N, S1300N, S5200N, W1OOON
+ W1N, //W1000N
+ W5A, //W5A
+ xxN, //M2400N, M3700N, M5200N, M6800N, S1300N, S5200N
//(Centrino)
END_MODEL
} model; //Models currently supported
@@ -149,17 +156,8 @@ struct asus_hotk {
static struct model_data model_conf[END_MODEL] = {
/*
- * Those pathnames are relative to the HOTK / ATKD device :
- * - mt_mled
- * - mt_wled
- * - brightness_set
- * - brightness_get
- * - display_set
- * - display_get
- *
* TODO I have seen a SWBX and AIBX method on some models, like L1400B,
* it seems to be a kind of switch, but what for ?
- *
*/
{
@@ -184,6 +182,16 @@ static struct model_data model_conf[END_MODEL] = {
.display_get = "\\INFB"},
{
+ .name = "A4G",
+ .mt_mled = "MLED",
+/* WLED present, but not controlled by ACPI */
+ .mt_lcd_switch = xxN_PREFIX "_Q10",
+ .brightness_set = "SPLV",
+ .brightness_get = "GPLV",
+ .display_set = "SDSP",
+ .display_get = "\\ADVG"},
+
+ {
.name = "D1x",
.mt_mled = "MLED",
.mt_lcd_switch = "\\Q0D",
@@ -302,7 +310,8 @@ static struct model_data model_conf[END_MODEL] = {
.brightness_set = "SPLV",
.brightness_get = "GPLV",
.display_set = "SDSP",
- .display_get = "\\_SB.PCI0.P0P1.VGA.GETD"},
+ .display_get = "\\SSTE"},
+
{
.name = "M6R",
.mt_mled = "MLED",
@@ -312,7 +321,7 @@ static struct model_data model_conf[END_MODEL] = {
.brightness_set = "SPLV",
.brightness_get = "GPLV",
.display_set = "SDSP",
- .display_get = "\\SSTE"},
+ .display_get = "\\_SB.PCI0.P0P1.VGA.GETD"},
{
.name = "P30",
@@ -345,6 +354,28 @@ static struct model_data model_conf[END_MODEL] = {
.brightness_down = S2x_PREFIX "_Q0A"},
{
+ .name = "W1N",
+ .mt_mled = "MLED",
+ .mt_wled = "WLED",
+ .mt_ledd = "SLCM",
+ .mt_lcd_switch = xxN_PREFIX "_Q10",
+ .lcd_status = "\\BKLT",
+ .brightness_set = "SPLV",
+ .brightness_get = "GPLV",
+ .display_set = "SDSP",
+ .display_get = "\\ADVG"},
+
+ {
+ .name = "W5A",
+ .mt_bt_switch = "BLED",
+ .mt_wled = "WLED",
+ .mt_lcd_switch = xxN_PREFIX "_Q10",
+ .brightness_set = "SPLV",
+ .brightness_get = "GPLV",
+ .display_set = "SDSP",
+ .display_get = "\\ADVG"},
+
+ {
.name = "xxN",
.mt_mled = "MLED",
/* WLED present, but not controlled by ACPI */
@@ -563,6 +594,36 @@ proc_write_mled(struct file *file, const char __user * buffer,
}
/*
+ * Proc handlers for LED display
+ */
+static int
+proc_read_ledd(char *page, char **start, off_t off, int count, int *eof,
+ void *data)
+{
+ return sprintf(page, "0x%08x\n", hotk->ledd_status);
+}
+
+static int
+proc_write_ledd(struct file *file, const char __user * buffer,
+ unsigned long count, void *data)
+{
+ int value;
+
+ count = parse_arg(buffer, count, &value);
+ if (count > 0) {
+ if (!write_acpi_int
+ (hotk->handle, hotk->methods->mt_ledd, value, NULL))
+ printk(KERN_WARNING
+ "Asus ACPI: LED display write failed\n");
+ else
+ hotk->ledd_status = (u32) value;
+ } else if (count < 0)
+ printk(KERN_WARNING "Asus ACPI: Error reading user input\n");
+
+ return count;
+}
+
+/*
* Proc handlers for WLED
*/
static int
@@ -581,6 +642,25 @@ proc_write_wled(struct file *file, const char __user * buffer,
}
/*
+ * Proc handlers for Bluetooth
+ */
+static int
+proc_read_bluetooth(char *page, char **start, off_t off, int count, int *eof,
+ void *data)
+{
+ return sprintf(page, "%d\n", read_led(hotk->methods->bt_status, BT_ON));
+}
+
+static int
+proc_write_bluetooth(struct file *file, const char __user * buffer,
+ unsigned long count, void *data)
+{
+ /* Note: mt_bt_switch controls both internal Bluetooth adapter's
+ presence and its LED */
+ return write_led(buffer, count, hotk->methods->mt_bt_switch, BT_ON, 0);
+}
+
+/*
* Proc handlers for TLED
*/
static int
@@ -817,7 +897,7 @@ typedef int (proc_writefunc) (struct file * file, const char __user * buffer,
unsigned long count, void *data);
static int
-__init asus_proc_add(char *name, proc_writefunc * writefunc,
+asus_proc_add(char *name, proc_writefunc * writefunc,
proc_readfunc * readfunc, mode_t mode,
struct acpi_device *device)
{
@@ -836,7 +916,7 @@ __init asus_proc_add(char *name, proc_writefunc * writefunc,
return 0;
}
-static int __init asus_hotk_add_fs(struct acpi_device *device)
+static int asus_hotk_add_fs(struct acpi_device *device)
{
struct proc_dir_entry *proc;
mode_t mode;
@@ -876,6 +956,11 @@ static int __init asus_hotk_add_fs(struct acpi_device *device)
mode, device);
}
+ if (hotk->methods->mt_ledd) {
+ asus_proc_add(PROC_LEDD, &proc_write_ledd, &proc_read_ledd,
+ mode, device);
+ }
+
if (hotk->methods->mt_mled) {
asus_proc_add(PROC_MLED, &proc_write_mled, &proc_read_mled,
mode, device);
@@ -886,6 +971,11 @@ static int __init asus_hotk_add_fs(struct acpi_device *device)
mode, device);
}
+ if (hotk->methods->mt_bt_switch) {
+ asus_proc_add(PROC_BT, &proc_write_bluetooth,
+ &proc_read_bluetooth, mode, device);
+ }
+
/*
* We need both read node and write method as LCD switch is also accessible
* from keyboard
@@ -919,6 +1009,10 @@ static int asus_hotk_remove_fs(struct acpi_device *device)
remove_proc_entry(PROC_MLED, acpi_device_dir(device));
if (hotk->methods->mt_tled)
remove_proc_entry(PROC_TLED, acpi_device_dir(device));
+ if (hotk->methods->mt_ledd)
+ remove_proc_entry(PROC_LEDD, acpi_device_dir(device));
+ if (hotk->methods->mt_bt_switch)
+ remove_proc_entry(PROC_BT, acpi_device_dir(device));
if (hotk->methods->mt_lcd_switch && hotk->methods->lcd_status)
remove_proc_entry(PROC_LCD, acpi_device_dir(device));
if ((hotk->methods->brightness_up
@@ -951,15 +1045,75 @@ static void asus_hotk_notify(acpi_handle handle, u32 event, void *data)
}
/*
+ * Match the model string to the list of supported models. Return END_MODEL if
+ * no match or model is NULL.
+ */
+static int asus_model_match(char *model)
+{
+ if (model == NULL)
+ return END_MODEL;
+
+ if (strncmp(model, "L3D", 3) == 0)
+ return L3D;
+ else if (strncmp(model, "L2E", 3) == 0 ||
+ strncmp(model, "L3H", 3) == 0 || strncmp(model, "L5D", 3) == 0)
+ return L3H;
+ else if (strncmp(model, "L3", 2) == 0 || strncmp(model, "L2B", 3) == 0)
+ return L3C;
+ else if (strncmp(model, "L8L", 3) == 0)
+ return L8L;
+ else if (strncmp(model, "L4R", 3) == 0)
+ return L4R;
+ else if (strncmp(model, "M6N", 3) == 0 || strncmp(model, "W3N", 3) == 0)
+ return M6N;
+ else if (strncmp(model, "M6R", 3) == 0 || strncmp(model, "A3G", 3) == 0)
+ return M6R;
+ else if (strncmp(model, "M2N", 3) == 0 ||
+ strncmp(model, "M3N", 3) == 0 ||
+ strncmp(model, "M5N", 3) == 0 ||
+ strncmp(model, "M6N", 3) == 0 ||
+ strncmp(model, "S1N", 3) == 0 ||
+ strncmp(model, "S5N", 3) == 0 || strncmp(model, "W1N", 3) == 0)
+ return xxN;
+ else if (strncmp(model, "M1", 2) == 0)
+ return M1A;
+ else if (strncmp(model, "M2", 2) == 0 || strncmp(model, "L4E", 3) == 0)
+ return M2E;
+ else if (strncmp(model, "L2", 2) == 0)
+ return L2D;
+ else if (strncmp(model, "L8", 2) == 0)
+ return S1x;
+ else if (strncmp(model, "D1", 2) == 0)
+ return D1x;
+ else if (strncmp(model, "A1", 2) == 0)
+ return A1x;
+ else if (strncmp(model, "A2", 2) == 0)
+ return A2x;
+ else if (strncmp(model, "J1", 2) == 0)
+ return S2x;
+ else if (strncmp(model, "L5", 2) == 0)
+ return L5x;
+ else if (strncmp(model, "A4G", 3) == 0)
+ return A4G;
+ else if (strncmp(model, "W1N", 3) == 0)
+ return W1N;
+ else if (strncmp(model, "W5A", 3) == 0)
+ return W5A;
+ else
+ return END_MODEL;
+}
+
+/*
* This function is used to initialize the hotk with right values. In this
* method, we can make all the detection we want, and modify the hotk struct
*/
-static int __init asus_hotk_get_info(void)
+static int asus_hotk_get_info(void)
{
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
struct acpi_buffer dsdt = { ACPI_ALLOCATE_BUFFER, NULL };
union acpi_object *model = NULL;
int bsts_result;
+ char *string = NULL;
acpi_status status;
/*
@@ -970,7 +1124,7 @@ static int __init asus_hotk_get_info(void)
* HID), this bit will be moved. A global variable asus_info contains
* the DSDT header.
*/
- status = acpi_get_table(ACPI_TABLE_DSDT, 1, &dsdt);
+ status = acpi_get_table(ACPI_TABLE_ID_DSDT, 1, &dsdt);
if (ACPI_FAILURE(status))
printk(KERN_WARNING " Couldn't get the DSDT table header\n");
else
@@ -989,119 +1143,78 @@ static int __init asus_hotk_get_info(void)
printk(KERN_NOTICE " BSTS called, 0x%02x returned\n",
bsts_result);
- /* This is unlikely with implicit return */
- if (buffer.pointer == NULL)
- return -EINVAL;
-
- model = (union acpi_object *) buffer.pointer;
/*
- * Samsung P30 has a device with a valid _HID whose INIT does not
- * return anything. It used to be possible to catch this exception,
- * but the implicit return code will now happily confuse the
- * driver. We assume that every ACPI_TYPE_STRING is a valid model
- * identifier but it's still possible to get completely bogus data.
+ * Try to match the object returned by INIT to the specific model.
+ * Handle every possible object (or the lack of thereof) the DSDT
+ * writers might throw at us. When in trouble, we pass NULL to
+ * asus_model_match() and try something completely different.
*/
- if (model->type == ACPI_TYPE_STRING) {
- printk(KERN_NOTICE " %s model detected, ", model->string.pointer);
- } else {
- if (asus_info && /* Samsung P30 */
+ if (buffer.pointer) {
+ model = (union acpi_object *)buffer.pointer;
+ switch (model->type) {
+ case ACPI_TYPE_STRING:
+ string = model->string.pointer;
+ break;
+ case ACPI_TYPE_BUFFER:
+ string = model->buffer.pointer;
+ break;
+ default:
+ kfree(model);
+ break;
+ }
+ }
+ hotk->model = asus_model_match(string);
+ if (hotk->model == END_MODEL) { /* match failed */
+ if (asus_info &&
strncmp(asus_info->oem_table_id, "ODEM", 4) == 0) {
hotk->model = P30;
printk(KERN_NOTICE
" Samsung P30 detected, supported\n");
} else {
hotk->model = M2E;
- printk(KERN_WARNING " no string returned by INIT\n");
- printk(KERN_WARNING " trying default values, supply "
- "the developers with your DSDT\n");
+ printk(KERN_NOTICE " unsupported model %s, trying "
+ "default values\n", string);
+ printk(KERN_NOTICE
+ " send /proc/acpi/dsdt to the developers\n");
}
hotk->methods = &model_conf[hotk->model];
-
- acpi_os_free(model);
-
return AE_OK;
}
-
- hotk->model = END_MODEL;
- if (strncmp(model->string.pointer, "L3D", 3) == 0)
- hotk->model = L3D;
- else if (strncmp(model->string.pointer, "L3H", 3) == 0 ||
- strncmp(model->string.pointer, "L2E", 3) == 0)
- hotk->model = L3H;
- else if (strncmp(model->string.pointer, "L3", 2) == 0 ||
- strncmp(model->string.pointer, "L2B", 3) == 0)
- hotk->model = L3C;
- else if (strncmp(model->string.pointer, "L8L", 3) == 0)
- hotk->model = L8L;
- else if (strncmp(model->string.pointer, "L4R", 3) == 0)
- hotk->model = L4R;
- else if (strncmp(model->string.pointer, "M6N", 3) == 0)
- hotk->model = M6N;
- else if (strncmp(model->string.pointer, "M6R", 3) == 0)
- hotk->model = M6R;
- else if (strncmp(model->string.pointer, "M2N", 3) == 0 ||
- strncmp(model->string.pointer, "M3N", 3) == 0 ||
- strncmp(model->string.pointer, "M5N", 3) == 0 ||
- strncmp(model->string.pointer, "M6N", 3) == 0 ||
- strncmp(model->string.pointer, "S1N", 3) == 0 ||
- strncmp(model->string.pointer, "S5N", 3) == 0 ||
- strncmp(model->string.pointer, "W1N", 3) == 0)
- hotk->model = xxN;
- else if (strncmp(model->string.pointer, "M1", 2) == 0)
- hotk->model = M1A;
- else if (strncmp(model->string.pointer, "M2", 2) == 0 ||
- strncmp(model->string.pointer, "L4E", 3) == 0)
- hotk->model = M2E;
- else if (strncmp(model->string.pointer, "L2", 2) == 0)
- hotk->model = L2D;
- else if (strncmp(model->string.pointer, "L8", 2) == 0)
- hotk->model = S1x;
- else if (strncmp(model->string.pointer, "D1", 2) == 0)
- hotk->model = D1x;
- else if (strncmp(model->string.pointer, "A1", 2) == 0)
- hotk->model = A1x;
- else if (strncmp(model->string.pointer, "A2", 2) == 0)
- hotk->model = A2x;
- else if (strncmp(model->string.pointer, "J1", 2) == 0)
- hotk->model = S2x;
- else if (strncmp(model->string.pointer, "L5", 2) == 0)
- hotk->model = L5x;
-
- if (hotk->model == END_MODEL) {
- printk("unsupported, trying default values, supply the "
- "developers with your DSDT\n");
- hotk->model = M2E;
- } else {
- printk("supported\n");
- }
-
hotk->methods = &model_conf[hotk->model];
+ printk(KERN_NOTICE " %s model detected, supported\n", string);
/* Sort of per-model blacklist */
- if (strncmp(model->string.pointer, "L2B", 3) == 0)
+ if (strncmp(string, "L2B", 3) == 0)
hotk->methods->lcd_status = NULL;
/* L2B is similar enough to L3C to use its settings, with this only
exception */
- else if (strncmp(model->string.pointer, "S5N", 3) == 0 ||
- strncmp(model->string.pointer, "M5N", 3) == 0)
+ else if (strncmp(string, "A3G", 3) == 0)
+ hotk->methods->lcd_status = "\\BLFG";
+ /* A3G is like M6R */
+ else if (strncmp(string, "S5N", 3) == 0 ||
+ strncmp(string, "M5N", 3) == 0 ||
+ strncmp(string, "W3N", 3) == 0)
hotk->methods->mt_mled = NULL;
- /* S5N and M5N have no MLED */
- else if (strncmp(model->string.pointer, "M2N", 3) == 0 ||
- strncmp(model->string.pointer, "W1N", 3) == 0)
+ /* S5N, M5N and W3N have no MLED */
+ else if (strncmp(string, "L5D", 3) == 0)
+ hotk->methods->mt_wled = NULL;
+ /* L5D's WLED is not controlled by ACPI */
+ else if (strncmp(string, "M2N", 3) == 0 ||
+ strncmp(string, "S1N", 3) == 0)
hotk->methods->mt_wled = "WLED";
- /* M2N and W1N have a usable WLED */
+ /* M2N and S1N have a usable WLED */
else if (asus_info) {
if (strncmp(asus_info->oem_table_id, "L1", 2) == 0)
hotk->methods->mled_status = NULL;
/* S1300A reports L84F, but L1400B too, account for that */
}
- acpi_os_free(model);
+ kfree(model);
return AE_OK;
}
-static int __init asus_hotk_check(void)
+static int asus_hotk_check(void)
{
int result = 0;
@@ -1119,7 +1232,9 @@ static int __init asus_hotk_check(void)
return result;
}
-static int __init asus_hotk_add(struct acpi_device *device)
+static int asus_hotk_found;
+
+static int asus_hotk_add(struct acpi_device *device)
{
acpi_status status = AE_OK;
int result;
@@ -1162,8 +1277,7 @@ static int __init asus_hotk_add(struct acpi_device *device)
/* For laptops without GPLV: init the hotk->brightness value */
if ((!hotk->methods->brightness_get)
&& (!hotk->methods->brightness_status)
- && (hotk->methods->brightness_up
- && hotk->methods->brightness_down)) {
+ && (hotk->methods->brightness_up && hotk->methods->brightness_down)) {
status =
acpi_evaluate_object(NULL, hotk->methods->brightness_down,
NULL, NULL);
@@ -1180,6 +1294,11 @@ static int __init asus_hotk_add(struct acpi_device *device)
}
}
+ asus_hotk_found = 1;
+
+ /* LED display is off by default */
+ hotk->ledd_status = 0xFFF;
+
end:
if (result) {
kfree(hotk);
@@ -1226,10 +1345,22 @@ static int __init asus_acpi_init(void)
asus_proc_dir->owner = THIS_MODULE;
result = acpi_bus_register_driver(&asus_hotk_driver);
- if (result < 1) {
+ if (result < 0) {
+ remove_proc_entry(PROC_ASUS, acpi_root_dir);
+ return result;
+ }
+
+ /*
+ * This is a bit of a kludge. We only want this module loaded
+ * for ASUS systems, but there's currently no way to probe the
+ * ACPI namespace for ASUS HIDs. So we just return failure if
+ * we didn't find one, which will cause the module to be
+ * unloaded.
+ */
+ if (!asus_hotk_found) {
acpi_bus_unregister_driver(&asus_hotk_driver);
remove_proc_entry(PROC_ASUS, acpi_root_dir);
- return -ENODEV;
+ return result;
}
return 0;
@@ -1240,7 +1371,7 @@ static void __exit asus_acpi_exit(void)
acpi_bus_unregister_driver(&asus_hotk_driver);
remove_proc_entry(PROC_ASUS, acpi_root_dir);
- acpi_os_free(asus_info);
+ kfree(asus_info);
return;
}
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