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Add wrappers for brightness-related functions (#246)

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* Add wrappers for brightness-related functions
This commit is contained in:
exelix 2019-03-05 03:37:33 +01:00 committed by yellows8
parent 966d554e7d
commit 2d1116743e
2 changed files with 156 additions and 2 deletions
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12
nx/include/switch/services/lbl.h
View File

@ -1,7 +1,7 @@
/**
* @file lbl.h
* @brief LBL service IPC wrapper.
* @author SciresM
* @author SciresM, exelix
* @copyright libnx Authors
*/
#pragma once
@ -12,3 +12,13 @@ void lblExit(void);
Result lblSwitchBacklightOn(u64 fade_time);
Result lblSwitchBacklightOff(u64 fade_time);
/**
* @note The brightness goes from 0 to 1.0.
*/
Result lblSetCurrentBrightnessSetting(float brightness);
Result lblGetCurrentBrightnessSetting(float *out_value);
Result lblEnableAutoBrightnessControl(void);
Result lblDisableAutoBrightnessControl(void);
Result lblIsAutoBrightnessControlEnabled(bool *out_value);

146
nx/source/services/lbl.c
View File

@ -29,7 +29,39 @@ void lblExit(void) {
}
}
static Result _lblSwitchBacklight(u32 cmd_id, u64 fade_time) {
static Result _lblCmdNoIO(u64 cmd_id) {
IpcCommand c;
ipcInitialize(&c);
struct {
u64 magic;
u64 cmd_id;
} *raw;
raw = serviceIpcPrepareHeader(&g_lblSrv, &c, sizeof(*raw));
raw->magic = SFCI_MAGIC;
raw->cmd_id = cmd_id;
Result rc = serviceIpcDispatch(&g_lblSrv);
if (R_SUCCEEDED(rc)) {
IpcParsedCommand r;
struct {
u64 magic;
u64 result;
} *resp;
serviceIpcParse(&g_lblSrv, &r, sizeof(*resp));
resp = r.Raw;
rc = resp->result;
}
return rc;
}
static Result _lblSwitchBacklight(u64 cmd_id, u64 fade_time) {
IpcCommand c;
ipcInitialize(&c);
@ -70,3 +102,115 @@ Result lblSwitchBacklightOn(u64 fade_time) {
Result lblSwitchBacklightOff(u64 fade_time) {
return _lblSwitchBacklight(7, fade_time);
}
Result lblSetCurrentBrightnessSetting(float brightness) {
IpcCommand c;
ipcInitialize(&c);
struct {
u64 magic;
u64 cmd_id;
float value;
} *raw;
raw = serviceIpcPrepareHeader(&g_lblSrv, &c, sizeof(*raw));
raw->magic = SFCI_MAGIC;
raw->cmd_id = 2;
raw->value = brightness;
Result rc = serviceIpcDispatch(&g_lblSrv);
if (R_SUCCEEDED(rc)) {
IpcParsedCommand r;
struct {
u64 magic;
u64 result;
} *resp;
serviceIpcParse(&g_lblSrv, &r, sizeof(*resp));
resp = r.Raw;
rc = resp->result;
}
return rc;
}
Result lblGetCurrentBrightnessSetting(float *out_value) {
IpcCommand c;
ipcInitialize(&c);
struct {
u64 magic;
u64 cmd_id;
} *raw;
raw = serviceIpcPrepareHeader(&g_lblSrv, &c, sizeof(*raw));
raw->magic = SFCI_MAGIC;
raw->cmd_id = 3;
Result rc = serviceIpcDispatch(&g_lblSrv);
if (R_SUCCEEDED(rc)) {
IpcParsedCommand r;
struct {
u64 magic;
u64 result;
float brightness;
} *resp;
serviceIpcParse(&g_lblSrv, &r, sizeof(*resp));
resp = r.Raw;
rc = resp->result;
if (R_SUCCEEDED(rc))
*out_value = resp->brightness;
}
return rc;
}
Result lblEnableAutoBrightnessControl(void) {
return _lblCmdNoIO(12);
}
Result lblDisableAutoBrightnessControl(void) {
return _lblCmdNoIO(13);
}
Result lblIsAutoBrightnessControlEnabled(bool *out_value){
IpcCommand c;
ipcInitialize(&c);
struct {
u64 magic;
u64 cmd_id;
} *raw;
raw = serviceIpcPrepareHeader(&g_lblSrv, &c, sizeof(*raw));
raw->magic = SFCI_MAGIC;
raw->cmd_id = 14;
Result rc = serviceIpcDispatch(&g_lblSrv);
if (R_SUCCEEDED(rc)) {
IpcParsedCommand r;
struct {
u64 magic;
u64 result;
u8 isEnabled;
} *resp;
serviceIpcParse(&g_lblSrv, &r, sizeof(*resp));
resp = r.Raw;
rc = resp->result;
if (R_SUCCEEDED(rc))
*out_value = resp->isEnabled != 0;
}
return rc;
}