summaryrefslogtreecommitdiffstats
path: root/drivers/platform
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/platform')
-rw-r--r--drivers/platform/x86/sony-laptop.c319
1 files changed, 233 insertions, 86 deletions
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index d6c53c622b6..4420353cfb6 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -141,6 +141,8 @@ MODULE_PARM_DESC(kbd_backlight_timeout,
"(default: 0)");
static void sony_nc_kbd_backlight_resume(void);
+static void sony_nc_kbd_backlight_setup(struct platform_device *pd);
+static int sony_nc_kbd_backlight_cleanup(struct platform_device *pd);
enum sony_nc_rfkill {
SONY_WIFI,
@@ -153,6 +155,8 @@ enum sony_nc_rfkill {
static int sony_rfkill_handle;
static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
+static void sony_nc_rfkill_setup(struct acpi_device *device);
+static void sony_nc_rfkill_cleanup(void);
static void sony_nc_rfkill_update(void);
/*********** Input Devices ***********/
@@ -1103,63 +1107,116 @@ static struct sony_nc_event sony_127_events[] = {
{ 0, 0 },
};
+static int sony_nc_hotkeys_decode(u32 event, unsigned int handle)
+{
+ int ret = -EINVAL;
+ unsigned int result = 0;
+ struct sony_nc_event *key_event;
+
+ if (sony_call_snc_handle(handle, 0x200, &result)) {
+ dprintk("Unable to decode event 0x%.2x 0x%.2x\n", handle,
+ event);
+ return -EINVAL;
+ }
+
+ result &= 0xFF;
+
+ if (handle == 0x0100)
+ key_event = sony_100_events;
+ else
+ key_event = sony_127_events;
+
+ for (; key_event->data; key_event++) {
+ if (key_event->data == result) {
+ ret = key_event->event;
+ break;
+ }
+ }
+
+ if (!key_event->data)
+ pr_info("Unknown hotkey 0x%.2x/0x%.2x (handle 0x%.2x)\n",
+ event, result, handle);
+
+ return ret;
+}
+
/*
* ACPI callbacks
*/
static void sony_nc_notify(struct acpi_device *device, u32 event)
{
- u32 ev = event;
+ u32 real_ev = event;
+ u8 ev_type = 0;
+ dprintk("sony_nc_notify, event: 0x%.2x\n", event);
- if (ev >= 0x90) {
- /* New-style event */
- int result;
- int key_handle = 0;
- ev -= 0x90;
-
- if (sony_find_snc_handle(0x100) == ev)
- key_handle = 0x100;
- if (sony_find_snc_handle(0x127) == ev)
- key_handle = 0x127;
-
- if (key_handle) {
- struct sony_nc_event *key_event;
-
- if (sony_call_snc_handle(key_handle, 0x200, &result)) {
- dprintk("sony_nc_notify, unable to decode"
- " event 0x%.2x 0x%.2x\n", key_handle,
- ev);
- /* restore the original event */
- ev = event;
- } else {
- ev = result & 0xFF;
-
- if (key_handle == 0x100)
- key_event = sony_100_events;
- else
- key_event = sony_127_events;
-
- for (; key_event->data; key_event++) {
- if (key_event->data == ev) {
- ev = key_event->event;
- break;
- }
- }
+ if (event >= 0x90) {
+ unsigned int result = 0;
+ unsigned int arg = 0;
+ unsigned int handle = 0;
+ unsigned int offset = event - 0x90;
- if (!key_event->data)
- pr_info("Unknown event: 0x%x 0x%x\n",
- key_handle, ev);
- else
- sony_laptop_report_input_event(ev);
- }
- } else if (sony_find_snc_handle(sony_rfkill_handle) == ev) {
- sony_nc_rfkill_update();
+ if (offset >= ARRAY_SIZE(handles->cap)) {
+ pr_err("Event 0x%x outside of capabilities list\n",
+ event);
return;
}
- } else
- sony_laptop_report_input_event(ev);
+ handle = handles->cap[offset];
+
+ /* list of handles known for generating events */
+ switch (handle) {
+ /* hotkey event */
+ case 0x0100:
+ case 0x0127:
+ ev_type = 1;
+ real_ev = sony_nc_hotkeys_decode(event, handle);
+
+ if (real_ev > 0)
+ sony_laptop_report_input_event(real_ev);
+ else
+ /* restore the original event for reporting */
+ real_ev = event;
+
+ break;
+
+ /* wlan switch */
+ case 0x0124:
+ case 0x0135:
+ /* events on this handle are reported when the
+ * switch changes position or for battery
+ * events. We'll notify both of them but only
+ * update the rfkill device status when the
+ * switch is moved.
+ */
+ ev_type = 2;
+ sony_call_snc_handle(handle, 0x0100, &result);
+ real_ev = result & 0x03;
+
+ /* hw switch event */
+ if (real_ev == 1)
+ sony_nc_rfkill_update();
+
+ break;
+
+ default:
+ dprintk("Unknown event 0x%x for handle 0x%x\n",
+ event, handle);
+ break;
+ }
- dprintk("sony_nc_notify, event: 0x%.2x\n", ev);
- acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
+ /* clear the event (and the event reason when present) */
+ arg = 1 << offset;
+ sony_nc_int_call(sony_nc_acpi_handle, "SN05", &arg, &result);
+
+ } else {
+ /* old style event */
+ ev_type = 1;
+ sony_laptop_report_input_event(real_ev);
+ }
+
+ acpi_bus_generate_proc_event(sony_nc_acpi_device, ev_type, real_ev);
+
+ acpi_bus_generate_netlink_event(sony_nc_acpi_device->pnp.device_class,
+ dev_name(&sony_nc_acpi_device->dev), ev_type, real_ev);
}
static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
@@ -1180,21 +1237,126 @@ static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
/*
* ACPI device
*/
-static int sony_nc_function_setup(struct acpi_device *device)
+static void sony_nc_function_setup(struct acpi_device *device,
+ struct platform_device *pf_device)
{
- int result, arg;
+ unsigned int i, result, bitmask, arg;
+
+ if (!handles)
+ return;
+
+ /* setup found handles here */
+ for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
+ unsigned int handle = handles->cap[i];
+
+ if (!handle)
+ continue;
+
+ dprintk("setting up handle 0x%.4x\n", handle);
+
+ switch (handle) {
+ case 0x0100:
+ case 0x0101:
+ case 0x0127:
+ /* setup hotkeys */
+ sony_call_snc_handle(handle, 0, &result);
+ break;
+ case 0x0102:
+ /* setup hotkeys */
+ sony_call_snc_handle(handle, 0x100, &result);
+ break;
+ case 0x0124:
+ case 0x0135:
+ sony_nc_rfkill_setup(device);
+ break;
+ case 0x0137:
+ sony_nc_kbd_backlight_setup(pf_device);
+ break;
+ default:
+ continue;
+ }
+ }
/* Enable all events */
- arg = 0xffff;
- sony_nc_int_call(sony_nc_acpi_handle, "SN02", &arg, &result);
+ arg = 0x10;
+ if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
+ sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
+ &result);
+}
+
+static void sony_nc_function_cleanup(struct platform_device *pd)
+{
+ unsigned int i, result, bitmask, handle;
- /* Setup hotkeys */
- sony_call_snc_handle(0x0100, 0, &result);
- sony_call_snc_handle(0x0101, 0, &result);
- sony_call_snc_handle(0x0102, 0x100, &result);
- sony_call_snc_handle(0x0127, 0, &result);
+ /* get enabled events and disable them */
+ sony_nc_int_call(sony_nc_acpi_handle, "SN01", NULL, &bitmask);
+ sony_nc_int_call(sony_nc_acpi_handle, "SN03", &bitmask, &result);
- return 0;
+ /* cleanup handles here */
+ for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
+
+ handle = handles->cap[i];
+
+ if (!handle)
+ continue;
+
+ switch (handle) {
+ case 0x0124:
+ case 0x0135:
+ sony_nc_rfkill_cleanup();
+ break;
+ case 0x0137:
+ sony_nc_kbd_backlight_cleanup(pd);
+ break;
+ default:
+ continue;
+ }
+ }
+
+ /* finally cleanup the handles list */
+ sony_nc_handles_cleanup(pd);
+}
+
+static void sony_nc_function_resume(void)
+{
+ unsigned int i, result, bitmask, arg;
+
+ dprintk("Resuming SNC device\n");
+
+ for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
+ unsigned int handle = handles->cap[i];
+
+ if (!handle)
+ continue;
+
+ switch (handle) {
+ case 0x0100:
+ case 0x0101:
+ case 0x0127:
+ /* re-enable hotkeys */
+ sony_call_snc_handle(handle, 0, &result);
+ break;
+ case 0x0102:
+ /* re-enable hotkeys */
+ sony_call_snc_handle(handle, 0x100, &result);
+ break;
+ case 0x0124:
+ case 0x0135:
+ sony_nc_rfkill_update();
+ break;
+ case 0x0137:
+ sony_nc_kbd_backlight_resume();
+ break;
+ default:
+ continue;
+ }
+ }
+
+ /* Enable all events */
+ arg = 0x10;
+ if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
+ sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
+ &result);
}
static int sony_nc_resume(struct acpi_device *device)
@@ -1223,16 +1385,8 @@ static int sony_nc_resume(struct acpi_device *device)
}
if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
- &handle))) {
- dprintk("Doing SNC setup\n");
- sony_nc_function_setup(device);
- }
-
- /* re-read rfkill state */
- sony_nc_rfkill_update();
-
- /* restore kbd backlight states */
- sony_nc_kbd_backlight_resume();
+ &handle)))
+ sony_nc_function_resume();
return 0;
}
@@ -1509,18 +1663,18 @@ static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
return count;
}
-static int sony_nc_kbd_backlight_setup(struct platform_device *pd)
+static void sony_nc_kbd_backlight_setup(struct platform_device *pd)
{
int result;
if (sony_call_snc_handle(KBDBL_HANDLER, KBDBL_PRESENT, &result))
- return 0;
+ return;
if (!(result & 0x02))
- return 0;
+ return;
kbdbl_handle = kzalloc(sizeof(*kbdbl_handle), GFP_KERNEL);
if (!kbdbl_handle)
- return -ENOMEM;
+ return;
sysfs_attr_init(&kbdbl_handle->mode_attr.attr);
kbdbl_handle->mode_attr.attr.name = "kbd_backlight";
@@ -1543,14 +1697,14 @@ static int sony_nc_kbd_backlight_setup(struct platform_device *pd)
__sony_nc_kbd_backlight_mode_set(kbd_backlight);
__sony_nc_kbd_backlight_timeout_set(kbd_backlight_timeout);
- return 0;
+ return;
outmode:
device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
outkzalloc:
kfree(kbdbl_handle);
kbdbl_handle = NULL;
- return -1;
+ return;
}
static int sony_nc_kbd_backlight_cleanup(struct platform_device *pd)
@@ -1726,21 +1880,17 @@ static int sony_nc_add(struct acpi_device *device)
if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
&handle))) {
dprintk("Doing SNC setup\n");
+ /* retrieve the available handles */
result = sony_nc_handles_setup(sony_pf_device);
- if (result)
- goto outpresent;
- result = sony_nc_kbd_backlight_setup(sony_pf_device);
- if (result)
- goto outsnc;
- sony_nc_function_setup(device);
- sony_nc_rfkill_setup(device);
+ if (!result)
+ sony_nc_function_setup(device, sony_pf_device);
}
/* setup input devices and helper fifo */
result = sony_laptop_setup_input(device);
if (result) {
pr_err("Unable to create input devices\n");
- goto outkbdbacklight;
+ goto outsnc;
}
if (acpi_video_backlight_support()) {
@@ -1798,10 +1948,8 @@ static int sony_nc_add(struct acpi_device *device)
sony_laptop_remove_input();
- outkbdbacklight:
- sony_nc_kbd_backlight_cleanup(sony_pf_device);
-
outsnc:
+ sony_nc_function_cleanup(sony_pf_device);
sony_nc_handles_cleanup(sony_pf_device);
outpresent:
@@ -1824,11 +1972,10 @@ static int sony_nc_remove(struct acpi_device *device, int type)
device_remove_file(&sony_pf_device->dev, &item->devattr);
}
- sony_nc_kbd_backlight_cleanup(sony_pf_device);
+ sony_nc_function_cleanup(sony_pf_device);
sony_nc_handles_cleanup(sony_pf_device);
sony_pf_remove();
sony_laptop_remove_input();
- sony_nc_rfkill_cleanup();
dprintk(SONY_NC_DRIVER_NAME " removed.\n");
return 0;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-14 23:56:13 +0000