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authorCorentin Chary <corentincj@iksaif.net>2007-05-06 08:47:06 -0400
committerLen Brown <len.brown@intel.com>2007-05-10 02:40:30 -0400
commite539c2f69ca17f71dd41ba89cde67612a1326c57 (patch)
tree9053c87ab55e70b1912182e1ef4f1a5b09fc2d6f /drivers/misc/asus-laptop.c
parenta9dbcb37a45f45813fc64d672a1f7ae6135650b1 (diff)
asus-laptop: add GPS support
Just adds GPS support found in R2H thanks to Sam Lin. It will make a "gps" file in /sys/devices/platform/asus-laptop/. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/misc/asus-laptop.c')
-rw-r--r--drivers/misc/asus-laptop.c55
1 files changed, 54 insertions, 1 deletions
diff --git a/drivers/misc/asus-laptop.c b/drivers/misc/asus-laptop.c
index dfec565ffa82..f1bab721ff55 100644
--- a/drivers/misc/asus-laptop.c
+++ b/drivers/misc/asus-laptop.c
@@ -30,7 +30,7 @@
30 * Eric Burghard - LED display support for W1N 30 * Eric Burghard - LED display support for W1N
31 * Josh Green - Light Sens support 31 * Josh Green - Light Sens support
32 * Thomas Tuttle - His first patch for led support was very helpfull 32 * Thomas Tuttle - His first patch for led support was very helpfull
33 * 33 * Sam Lin - GPS support
34 */ 34 */
35 35
36#include <linux/autoconf.h> 36#include <linux/autoconf.h>
@@ -83,6 +83,7 @@
83#define PLED_ON 0x20 //Phone LED 83#define PLED_ON 0x20 //Phone LED
84#define GLED_ON 0x40 //Gaming LED 84#define GLED_ON 0x40 //Gaming LED
85#define LCD_ON 0x80 //LCD backlight 85#define LCD_ON 0x80 //LCD backlight
86#define GPS_ON 0x100 //GPS
86 87
87#define ASUS_LOG ASUS_HOTK_FILE ": " 88#define ASUS_LOG ASUS_HOTK_FILE ": "
88#define ASUS_ERR KERN_ERR ASUS_LOG 89#define ASUS_ERR KERN_ERR ASUS_LOG
@@ -162,6 +163,12 @@ ASUS_HANDLE(display_get, "\\_SB.PCI0.P0P1.VGA.GETD", /* A6B, A6K A6R A7D F3JM L
162ASUS_HANDLE(ls_switch, ASUS_HOTK_PREFIX "ALSC"); /* Z71A Z71V */ 163ASUS_HANDLE(ls_switch, ASUS_HOTK_PREFIX "ALSC"); /* Z71A Z71V */
163ASUS_HANDLE(ls_level, ASUS_HOTK_PREFIX "ALSL"); /* Z71A Z71V */ 164ASUS_HANDLE(ls_level, ASUS_HOTK_PREFIX "ALSL"); /* Z71A Z71V */
164 165
166/* GPS */
167/* R2H use different handle for GPS on/off */
168ASUS_HANDLE(gps_on, ASUS_HOTK_PREFIX "SDON"); /* R2H */
169ASUS_HANDLE(gps_off, ASUS_HOTK_PREFIX "SDOF"); /* R2H */
170ASUS_HANDLE(gps_status, ASUS_HOTK_PREFIX "GPST");
171
165/* 172/*
166 * This is the main structure, we can use it to store anything interesting 173 * This is the main structure, we can use it to store anything interesting
167 * about the hotk device 174 * about the hotk device
@@ -278,12 +285,27 @@ static int read_wireless_status(int mask)
278 return (hotk->status & mask) ? 1 : 0; 285 return (hotk->status & mask) ? 1 : 0;
279} 286}
280 287
288static int read_gps_status(void) {
289 ulong status;
290 acpi_status rv = AE_OK;
291
292 rv = acpi_evaluate_integer(gps_status_handle, NULL, NULL, &status);
293 if (ACPI_FAILURE(rv))
294 printk(ASUS_WARNING "Error reading GPS status\n");
295 else
296 return status ? 1 : 0;
297
298 return (hotk->status & GPS_ON) ? 1 : 0;
299}
300
281/* Generic LED functions */ 301/* Generic LED functions */
282static int read_status(int mask) 302static int read_status(int mask)
283{ 303{
284 /* There is a special method for both wireless devices */ 304 /* There is a special method for both wireless devices */
285 if (mask == BT_ON || mask == WL_ON) 305 if (mask == BT_ON || mask == WL_ON)
286 return read_wireless_status(mask); 306 return read_wireless_status(mask);
307 else if(mask == GPS_ON)
308 return read_gps_status();
287 309
288 return (hotk->status & mask) ? 1 : 0; 310 return (hotk->status & mask) ? 1 : 0;
289} 311}
@@ -299,6 +321,10 @@ static void write_status(acpi_handle handle, int out, int mask)
299 case GLED_ON: 321 case GLED_ON:
300 out = (out & 0x1) + 1; 322 out = (out & 0x1) + 1;
301 break; 323 break;
324 case GPS_ON:
325 handle = (out) ? gps_on_handle : gps_off_handle;
326 out = 0x02;
327 break;
302 default: 328 default:
303 out &= 0x1; 329 out &= 0x1;
304 break; 330 break;
@@ -667,6 +693,21 @@ static ssize_t store_lslvl(struct device *dev, struct device_attribute *attr,
667 return rv; 693 return rv;
668} 694}
669 695
696/*
697 * GPS
698 */
699static ssize_t show_gps(struct device *dev,
700 struct device_attribute *attr, char *buf)
701{
702 return sprintf(buf, "%d\n", read_status(GPS_ON));
703}
704
705static ssize_t store_gps(struct device *dev, struct device_attribute *attr,
706 const char *buf, size_t count)
707{
708 return store_status(buf, count, NULL, GPS_ON);
709}
710
670static void asus_hotk_notify(acpi_handle handle, u32 event, void *data) 711static void asus_hotk_notify(acpi_handle handle, u32 event, void *data)
671{ 712{
672 /* TODO Find a better way to handle events count. */ 713 /* TODO Find a better way to handle events count. */
@@ -715,6 +756,7 @@ static ASUS_CREATE_DEVICE_ATTR(display);
715static ASUS_CREATE_DEVICE_ATTR(ledd); 756static ASUS_CREATE_DEVICE_ATTR(ledd);
716static ASUS_CREATE_DEVICE_ATTR(ls_switch); 757static ASUS_CREATE_DEVICE_ATTR(ls_switch);
717static ASUS_CREATE_DEVICE_ATTR(ls_level); 758static ASUS_CREATE_DEVICE_ATTR(ls_level);
759static ASUS_CREATE_DEVICE_ATTR(gps);
718 760
719static struct attribute *asuspf_attributes[] = { 761static struct attribute *asuspf_attributes[] = {
720 &dev_attr_infos.attr, 762 &dev_attr_infos.attr,
@@ -724,6 +766,7 @@ static struct attribute *asuspf_attributes[] = {
724 &dev_attr_ledd.attr, 766 &dev_attr_ledd.attr,
725 &dev_attr_ls_switch.attr, 767 &dev_attr_ls_switch.attr,
726 &dev_attr_ls_level.attr, 768 &dev_attr_ls_level.attr,
769 &dev_attr_gps.attr,
727 NULL 770 NULL
728}; 771};
729 772
@@ -763,6 +806,9 @@ static void asus_hotk_add_fs(void)
763 ASUS_SET_DEVICE_ATTR(ls_level, 0644, show_lslvl, store_lslvl); 806 ASUS_SET_DEVICE_ATTR(ls_level, 0644, show_lslvl, store_lslvl);
764 ASUS_SET_DEVICE_ATTR(ls_switch, 0644, show_lssw, store_lssw); 807 ASUS_SET_DEVICE_ATTR(ls_switch, 0644, show_lssw, store_lssw);
765 } 808 }
809
810 if(gps_status_handle && gps_on_handle && gps_off_handle)
811 ASUS_SET_DEVICE_ATTR(gps, 0644, show_gps, store_gps);
766} 812}
767 813
768static int asus_handle_init(char *name, acpi_handle * handle, 814static int asus_handle_init(char *name, acpi_handle * handle,
@@ -893,6 +939,10 @@ static int asus_hotk_get_info(void)
893 if (ASUS_HANDLE_INIT(ls_switch)) 939 if (ASUS_HANDLE_INIT(ls_switch))
894 ASUS_HANDLE_INIT(ls_level); 940 ASUS_HANDLE_INIT(ls_level);
895 941
942 ASUS_HANDLE_INIT(gps_on);
943 ASUS_HANDLE_INIT(gps_off);
944 ASUS_HANDLE_INIT(gps_status);
945
896 kfree(model); 946 kfree(model);
897 947
898 return AE_OK; 948 return AE_OK;
@@ -981,6 +1031,9 @@ static int asus_hotk_add(struct acpi_device *device)
981 if (ls_level_handle) 1031 if (ls_level_handle)
982 set_light_sens_level(hotk->light_level); 1032 set_light_sens_level(hotk->light_level);
983 1033
1034 /* GPS is on by default */
1035 write_status(NULL, 1, GPS_ON);
1036
984 end: 1037 end:
985 if (result) { 1038 if (result) {
986 kfree(hotk->name); 1039 kfree(hotk->name);