1 files changed, 214 insertions, 0 deletions

diff --git a/firmware/target/mips/ingenic_jz47xx/xduoo_x3/sadc-xduoo_x3.c b/firmware/target/mips/ingenic_jz47xx/xduoo_x3/sadc-xduoo_x3.c
new file mode 100644
index 0000000000..d4a3548305
--- /dev/null
+++ b/firmware/target/mips/ingenic_jz47xx/xduoo_x3/sadc-xduoo_x3.c
@@ -0,0 +1,214 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2016 by Roman Stolyarov
+ *
+ * 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 "config.h"
+#include "system.h"
+#include "cpu.h"
+#include "button.h"
+#include "button-target.h"
+#include "powermgmt.h"
+#include "kernel.h"
+#include "backlight.h"
+#include "logf.h"
+#include "adc.h"
+
+#define PIN_BTN_POWER (32*0+30)
+#define PIN_BTN_HOLD  (32*1+15)
+
+#define PIN_KEY_INT   (32*4+13)
+#define KEY_INT_IRQ   GPIO141
+
+#define PIN_CHARGE_CON (32*1+7)
+
+#define PIN_PH_DECT   (32*1+11)
+#define IRQ_PH_DECT   GPIO_IRQ(PIN_PH_DECT)
+#define GPIO_PH_DECT  GPIO43
+
+#define PIN_LO_DECT   (32*1+12)
+#define IRQ_LO_DECT   GPIO_IRQ(PIN_LO_DECT)
+#define GPIO_LO_DECT  GPIO44
+
+static volatile unsigned short bat_val,key_val;
+
+bool headphones_inserted(void)
+{
+    return (__gpio_get_pin(PIN_PH_DECT) != 0);
+}
+
+void button_init_device(void)
+{
+    key_val = 0xfff;
+
+    __gpio_as_input(PIN_BTN_POWER);
+    __gpio_as_input(PIN_BTN_HOLD);
+
+    __gpio_disable_pull(PIN_BTN_POWER);
+    __gpio_disable_pull(PIN_BTN_HOLD);
+    
+    __gpio_as_irq_fall_edge(PIN_KEY_INT);
+    system_enable_irq(GPIO_IRQ(PIN_KEY_INT));
+
+    __gpio_set_pin(PIN_CHARGE_CON); /* 0.7 A */
+    __gpio_as_output(PIN_CHARGE_CON);
+
+    __gpio_as_input(PIN_LO_DECT);
+    __gpio_as_input(PIN_PH_DECT);
+
+    __gpio_disable_pull(PIN_LO_DECT);
+    __gpio_disable_pull(PIN_PH_DECT);
+}
+
+bool button_hold(void)
+{
+   return (__gpio_get_pin(PIN_BTN_HOLD) ? true : false);
+}
+
+int button_read_device(void)
+{
+    static bool hold_button = false;
+    bool hold_button_old;
+    
+    hold_button_old = hold_button;
+    hold_button = (__gpio_get_pin(PIN_BTN_HOLD) ? true : false);
+
+    int btn = BUTTON_NONE;
+    bool gpio_btn = (__gpio_get_pin(PIN_BTN_POWER) ? false : true);
+
+    REG_SADC_ADCFG = ADCFG_VBAT_SEL + ADCFG_CMD_AUX(1);
+    REG_SADC_ADENA = ADENA_VBATEN + ADENA_AUXEN;
+
+#ifndef BOOTLOADER
+    if (hold_button != hold_button_old) {
+        backlight_hold_changed(hold_button);
+    }
+    if (hold_button) {
+        return BUTTON_NONE;
+    }
+#endif
+
+    if (gpio_btn)
+        btn |= BUTTON_POWER;
+
+    if (key_val < 261)
+        btn |= BUTTON_VOL_UP;
+    else
+    if (key_val < 653)
+        btn |= BUTTON_VOL_DOWN;
+    else
+    if (key_val < 1101)
+        btn |= BUTTON_PREV;
+    else
+    if (key_val < 1498)
+        btn |= BUTTON_NEXT;
+    else
+    if (key_val < 1839)
+        btn |= BUTTON_PLAY;
+    else
+    if (key_val < 2213)
+        btn |= BUTTON_OPTION;
+    else
+    if (key_val < 2600)
+        btn |= BUTTON_HOME;
+       
+    return btn;
+}
+
+/* called on button press interrupt */
+void KEY_INT_IRQ(void)
+{
+}
+
+const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
+{
+    /* 5% */
+    3634
+};
+
+const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
+{
+    /* 0% */
+    3300
+};
+
+
+/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
+const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
+{
+    { 3300, 3652, 3704, 3730, 3753, 3786, 3836, 3906, 3973, 4061, 4160 }
+};
+
+#if CONFIG_CHARGING
+/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
+const unsigned short percent_to_volt_charge[11] =
+    { 3300, 3652, 3704, 3730, 3753, 3786, 3836, 3906, 3973, 4061, 4160 };
+#endif /* CONFIG_CHARGING */
+
+/* VBAT = (BDATA/1024) * 2.5V */
+#define BATTERY_SCALE_FACTOR 2460
+
+/* Returns battery voltage from ADC [millivolts] */
+int _battery_voltage(void)
+{
+    return (bat_val*BATTERY_SCALE_FACTOR)>>10;
+}
+
+void adc_init(void)
+{
+    bat_val = 0xfff;
+
+    __cpm_start_sadc();
+    mdelay(10);
+    REG_SADC_ADENA = 0; /* Power Up */
+    mdelay(70);
+    REG_SADC_ADSTATE = 0;
+    REG_SADC_ADCTRL = ADCTRL_MASK_ALL - ADCTRL_ARDYM - ADCTRL_VRDYM;
+    REG_SADC_ADCFG = ADCFG_VBAT_SEL + ADCFG_CMD_AUX(1);
+    REG_SADC_ADCLK = (4 << 16) | (1 << 8) | 59; /* 200KHz */
+    system_enable_irq(IRQ_SADC);
+}
+
+void adc_close(void)
+{
+    REG_SADC_ADENA = ADENA_POWER; /* Power Down */
+    __intc_mask_irq(IRQ_SADC);
+    mdelay(20);
+    __cpm_stop_sadc();
+}
+
+/* Interrupt handler */
+void SADC(void)
+{
+    unsigned char state;
+    unsigned char sadcstate;
+
+    sadcstate = REG_SADC_ADSTATE;
+    state = REG_SADC_ADSTATE & (~REG_SADC_ADCTRL);
+    REG_SADC_ADSTATE &= sadcstate;
+    
+    if(state & ADCTRL_ARDYM)
+    {
+        key_val = REG_SADC_ADADAT;
+    }
+    if(state & ADCTRL_VRDYM)
+    {
+        bat_val = REG_SADC_ADVDAT;
+    }
+}