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OpenDingux Beta: Fix reporting of battery level

This commit is contained in:
jdgleaver 2021-03-26 15:37:41 +00:00
parent 23d22a1471
commit d8f08f8177
1 changed files with 48 additions and 15 deletions
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63
dingux/dingux_utils.c
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@ -31,6 +31,10 @@
#define DINGUX_SHARPNESS_DOWNSCALING_FILE "/sys/devices/platform/jz-lcd.0/sharpness_downscaling" #define DINGUX_SHARPNESS_DOWNSCALING_FILE "/sys/devices/platform/jz-lcd.0/sharpness_downscaling"
#define DINGUX_BATTERY_CAPACITY_FILE "/sys/class/power_supply/battery/capacity" #define DINGUX_BATTERY_CAPACITY_FILE "/sys/class/power_supply/battery/capacity"
/* OpenDingux Beta defines */
#define DINGUX_BATTERY_VOLTAGE_MIN "/sys/class/power_supply/jz-battery/voltage_min_design"
#define DINGUX_BATTERY_VOLTAGE_MAX "/sys/class/power_supply/jz-battery/voltage_max_design"
#define DINGUX_BATTERY_VOLTAGE_NOW "/sys/class/power_supply/jz-battery/voltage_now"
#define DINGUX_SCALING_MODE_ENVAR "SDL_VIDEO_KMSDRM_SCALING_MODE" #define DINGUX_SCALING_MODE_ENVAR "SDL_VIDEO_KMSDRM_SCALING_MODE"
#define DINGUX_SCALING_SHARPNESS_ENVAR "SDL_VIDEO_KMSDRM_SCALING_SHARPNESS" #define DINGUX_SCALING_SHARPNESS_ENVAR "SDL_VIDEO_KMSDRM_SCALING_SHARPNESS"
@ -172,13 +176,11 @@ bool dingux_ipu_reset(void)
#endif #endif
} }
/* Fetches internal battery level */ static int dingux_read_battery_sys_file(const char *path)
int dingux_get_battery_level(void)
{ {
const char *path = DINGUX_BATTERY_CAPACITY_FILE; int64_t file_len = 0;
int64_t file_len = 0; char *file_buf = NULL;
char *file_buf = NULL; int sys_file_value = 0;
int battery_level = 0;
/* Check whether file exists */ /* Check whether file exists */
if (!path_is_valid(path)) if (!path_is_valid(path))
@ -186,19 +188,16 @@ int dingux_get_battery_level(void)
/* Read file */ /* Read file */
if (!filestream_read_file(path, (void**)&file_buf, &file_len) || if (!filestream_read_file(path, (void**)&file_buf, &file_len) ||
(file_len == 0)) (file_len == 0) ||
!file_buf)
goto error; goto error;
/* Convert to integer */ /* Convert to integer */
if (file_buf) sys_file_value = atoi(file_buf);
{ free(file_buf);
battery_level = atoi(file_buf); file_buf = NULL;
free(file_buf); return sys_file_value;
file_buf = NULL;
}
return battery_level;
error: error:
if (file_buf) if (file_buf)
@ -209,3 +208,37 @@ error:
return -1; return -1;
} }
/* Fetches internal battery level */
int dingux_get_battery_level(void)
{
#if defined(DINGUX_BETA)
/* Taken from https://github.com/OpenDingux/gmenu2x/blob/master/src/battery.cpp
* No 'capacity' file in sysfs - Do a dumb approximation of the capacity
* using the current voltage reported and the min/max voltages of the
* battery */
int voltage_min = 0;
int voltage_max = 0;
int voltage_now = 0;
voltage_min = dingux_read_battery_sys_file(DINGUX_BATTERY_VOLTAGE_MIN);
if (voltage_min < 0)
return -1;
voltage_max = dingux_read_battery_sys_file(DINGUX_BATTERY_VOLTAGE_MAX);
if (voltage_max < 0)
return -1;
voltage_now = dingux_read_battery_sys_file(DINGUX_BATTERY_VOLTAGE_NOW);
if (voltage_now < 0)
return -1;
if ((voltage_max <= voltage_min) ||
(voltage_now < voltage_min))
return -1;
return (int)(((voltage_now - voltage_min) * 100) / (voltage_max - voltage_min));
#else
return dingux_read_battery_sys_file(DINGUX_BATTERY_CAPACITY_FILE);
#endif
}