1 files changed, 404 insertions, 0 deletions

diff --git a/firmware/target/hosted/ibasso/sysfs-ibasso.c b/firmware/target/hosted/ibasso/sysfs-ibasso.c
new file mode 100644
index 0000000000..8ca3edf387
--- /dev/null
+++ b/firmware/target/hosted/ibasso/sysfs-ibasso.c
@@ -0,0 +1,404 @@
+/***************************************************************************
+ *             __________               __   ___
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ *
+ * Copyright (C) 2014 by Ilia Sergachev: Initial Rockbox port to iBasso DX50
+ * Copyright (C) 2014 by Mario Basister: iBasso DX90 port
+ * Copyright (C) 2014 by Simon Rothen: Initial Rockbox repository submission, additional features
+ * Copyright (C) 2014 by Udo Schläpfer: Code clean up, additional features
+ *
+ * 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 the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+
+#include <stdio.h>
+#include <string.h>
+
+#include "config.h"
+#include "debug.h"
+
+#include "debug-ibasso.h"
+#include "sysfs-ibasso.h"
+
+
+static const char* SYSFS_PATHS[] =
+{
+    /* SYSFS_DX50_CODEC_VOLUME */
+    "/dev/codec_volume",
+
+    /* SYSFS_HOLDKEY */
+    "/sys/class/axppower/holdkey",
+
+    /* SYSFS_DX90_ES9018_VOLUME */
+    "/sys/class/codec/es9018_volume",
+
+    /* SYSFS_MUTE */
+    "/sys/class/codec/mute",
+
+    /* SYSFS_WM8740_MUTE */
+    "/sys/class/codec/wm8740_mute",
+
+    /* SYSFS_BATTERY_CAPACITY */
+    "/sys/class/power_supply/battery/capacity",
+
+    /* SYSFS_BATTERY_CURRENT_NOW */
+    "/sys/class/power_supply/battery/current_now",
+
+    /* SYSFS_BATTERY_ENERGY_FULL_DESIGN */
+    "/sys/class/power_supply/battery/energy_full_design",
+
+    /* SYSFS_BATTERY_HEALTH */
+    "/sys/class/power_supply/battery/health",
+
+    /* SYSFS_BATTERY_MODEL_NAME */
+    "/sys/class/power_supply/battery/model_name",
+
+    /* SYSFS_BATTERY_ONLINE */
+    "/sys/class/power_supply/battery/online",
+
+    /* SYSFS_BATTERY_PRESENT */
+    "/sys/class/power_supply/battery/present",
+
+    /* SYSFS_BATTERY_STATUS */
+    "/sys/class/power_supply/battery/status",
+
+    /* SYSFS_BATTERY_TECHNOLOGY */
+    "/sys/class/power_supply/battery/technology",
+
+    /* SYSFS_BATTERY_TEMP */
+    "/sys/class/power_supply/battery/temp",
+
+    /* SYSFS_BATTERY_TYPE */
+    "/sys/class/power_supply/battery/type",
+
+    /* SYSFS_BATTERY_VOLTAGE_MAX_DESIGN */
+    "/sys/class/power_supply/battery/voltage_max_design",
+
+    /* SYSFS_BATTERY_VOLTAGE_MIN_DESIGN */
+    "/sys/class/power_supply/battery/voltage_min_design",
+
+    /* SYSFS_BATTERY_VOLTAGE_NOW */
+    "/sys/class/power_supply/battery/voltage_now",
+
+    /* SYSFS_USB_POWER_CURRENT_NOW */
+    "/sys/class/power_supply/usb/current_now",
+
+    /* SYSFS_USB_POWER_ONLINE */
+    "/sys/class/power_supply/usb/online",
+
+    /* SYSFS_USB_POWER_PRESENT */
+    "/sys/class/power_supply/usb/present",
+
+    /* SYSFS_USB_POWER_VOLTAGE_NOW */
+    "/sys/class/power_supply/usb/voltage_now",
+
+    /* SYSFS_BACKLIGHT_POWER */
+    "/sys/devices/platform/rk29_backlight/backlight/rk28_bl/bl_power",
+
+    /* SYSFS_BACKLIGHT_BRIGHTNESS */
+    "/sys/devices/platform/rk29_backlight/backlight/rk28_bl/brightness",
+
+    /* SYSFS_POWER_STATE */
+    "/sys/power/state",
+
+    /* SYSFS_POWER_WAKE_LOCK */
+    "/sys/power/wake_lock"
+};
+
+
+static FILE* open_read(const char* file_name)
+{
+    FILE *f = fopen(file_name, "r");
+    if(f == NULL)
+    {
+        DEBUGF("ERROR %s: Can not open %s for reading.", __func__, file_name);
+    }
+
+    return f;
+}
+
+
+static FILE* open_write(const char* file_name)
+{
+    FILE *f = fopen(file_name, "w");
+    if(f == NULL)
+    {
+        DEBUGF("ERROR %s: Can not open %s for writing.", __func__, file_name);
+    }
+
+    return f;
+}
+
+
+bool sysfs_get_int(enum sys_fs_interface_id id, int* value)
+{
+    *value = -1;
+
+    switch(id)
+    {
+        case SYSFS_BATTERY_CAPACITY:
+        case SYSFS_BATTERY_CURRENT_NOW:
+        case SYSFS_BATTERY_ENERGY_FULL_DESIGN:
+        case SYSFS_BATTERY_ONLINE:
+        case SYSFS_BATTERY_PRESENT:
+        case SYSFS_BATTERY_TEMP:
+        case SYSFS_BATTERY_VOLTAGE_MAX_DESIGN:
+        case SYSFS_BATTERY_VOLTAGE_MIN_DESIGN:
+        case SYSFS_BATTERY_VOLTAGE_NOW:
+        case SYSFS_USB_POWER_CURRENT_NOW:
+        case SYSFS_USB_POWER_VOLTAGE_NOW:
+        case SYSFS_USB_POWER_ONLINE:
+        case SYSFS_USB_POWER_PRESENT:
+        {
+            break;
+        }
+
+        default:
+        {
+            DEBUGF("ERROR %s: Unknown interface id: %d.", __func__, id);
+            return false;
+        }
+    }
+
+    const char* interface = SYSFS_PATHS[id];
+
+    /*DEBUGF("%s: interface: %s.", __func__, interface);*/
+
+    FILE *f = open_read(interface);
+    if(f == NULL)
+    {
+        return false;
+    }
+
+    bool success = true;
+    if(fscanf(f, "%d", value) == EOF)
+    {
+        DEBUGF("ERROR %s: Read failed for %s.", __func__, interface);
+        success = false;
+    }
+
+    fclose(f);
+    return success;
+}
+
+
+bool sysfs_set_int(enum sys_fs_interface_id id, int value)
+{
+    switch(id)
+    {
+        case SYSFS_BACKLIGHT_POWER:
+        case SYSFS_BACKLIGHT_BRIGHTNESS:
+        case SYSFS_DX50_CODEC_VOLUME:
+        case SYSFS_DX90_ES9018_VOLUME:
+        {
+            break;
+        }
+
+        default:
+        {
+            DEBUGF("ERROR %s: Unknown interface id: %d.", __func__, id);
+            return false;
+        }
+    }
+
+    const char* interface = SYSFS_PATHS[id];
+
+    /*DEBUGF("%s: interface: %s, value: %d.", __func__, interface, value);*/
+
+    FILE *f = open_write(interface);
+    if(f == NULL)
+    {
+        return false;
+    }
+
+    bool success = true;
+    if(fprintf(f, "%d", value) < 1)
+    {
+        DEBUGF("ERROR %s: Write failed for %s.", __func__, interface);
+        success = false;
+    }
+
+    fclose(f);
+    return success;
+}
+
+
+bool sysfs_get_char(enum sys_fs_interface_id id, char* value)
+{
+    *value = '\0';
+
+    switch(id)
+    {
+        case SYSFS_HOLDKEY:
+        {
+            break;
+        }
+
+        default:
+        {
+            DEBUGF("ERROR %s: Unknown interface id: %d.", __func__, id);
+            return false;
+        }
+    }
+
+    const char* interface = SYSFS_PATHS[id];
+
+    /*DEBUGF("%s: interface: %s.", __func__, interface);*/
+
+    FILE *f = open_read(interface);
+    if(f == NULL)
+    {
+        return false;
+    }
+
+    bool success = true;
+    if(fscanf(f, "%c", value) == EOF)
+    {
+        DEBUGF("ERROR %s: Read failed for %s.", __func__, interface);
+        success = false;
+    }
+
+    fclose(f);
+    return success;
+}
+
+
+bool sysfs_set_char(enum sys_fs_interface_id id, char value)
+{
+    switch(id)
+    {
+        case SYSFS_MUTE:
+        case SYSFS_WM8740_MUTE:
+        {
+            break;
+        }
+
+        default:
+        {
+            DEBUGF("ERROR %s: Unknown interface id: %d.", __func__, id);
+            return false;
+        }
+    }
+
+    const char* interface = SYSFS_PATHS[id];
+
+    /*DEBUGF("%s: interface: %s, value: %c.", __func__, interface, value);*/
+
+    FILE *f = open_write(interface);
+    if(f == NULL)
+    {
+        return false;
+    }
+
+    bool success = true;
+    if(fprintf(f, "%c", value) < 1)
+    {
+        DEBUGF("ERROR %s: Write failed for %s.", __func__, interface);
+        success = false;
+    }
+
+    fclose(f);
+    return success;
+}
+
+
+bool sysfs_get_string(enum sys_fs_interface_id id, char* value, int size)
+{
+    value[0] = '\0';
+
+    switch(id)
+    {
+        case SYSFS_BATTERY_STATUS:
+        case SYSFS_BATTERY_HEALTH:
+        case SYSFS_BATTERY_MODEL_NAME:
+        case SYSFS_BATTERY_TECHNOLOGY:
+        case SYSFS_BATTERY_TYPE:
+        {
+            break;
+        }
+
+        default:
+        {
+            DEBUGF("ERROR %s: Unknown interface id: %d.", __func__, id);
+            return false;
+        }
+    }
+
+    const char* interface = SYSFS_PATHS[id];
+
+    /*DEBUGF("%s: interface: %s, size: %d.", __func__, interface, size);*/
+
+    FILE *f = open_read(interface);
+    if(f == NULL)
+    {
+        return false;
+    }
+
+    bool success = true;
+    if(fgets(value, size, f) == NULL)
+    {
+        DEBUGF("ERROR %s: Read failed for %s.", __func__, interface);
+        success = false;
+    }
+    else
+    {
+        size_t length = strlen(value);
+        if((length > 0) && value[length - 1] == '\n')
+        {
+            value[length - 1] = '\0';
+        }
+    }
+
+    fclose(f);
+    return success;
+}
+
+
+bool sysfs_set_string(enum sys_fs_interface_id id, char* value)
+{
+    switch(id)
+    {
+        case SYSFS_POWER_STATE:
+        case SYSFS_POWER_WAKE_LOCK:
+        {
+            break;
+        }
+
+        default:
+        {
+            DEBUGF("ERROR %s: Unknown interface id: %d.", __func__, id);
+            return false;
+        }
+    }
+
+    const char* interface = SYSFS_PATHS[id];
+
+    /*DEBUGF("%s: interface: %s, value: %s.", __func__, interface, value);*/
+
+    FILE *f = open_write(interface);
+    if(f == NULL)
+    {
+        return false;
+    }
+
+    bool success = true;
+    if(fprintf(f, "%s", value) < 1)
+    {
+        DEBUGF("ERROR %s: Write failed for %s.", __func__, interface);
+        success = false;
+    }
+
+    fclose(f);
+    return success;
+}