Introduce HiFi E.T MA9 port.

Change-Id: I79aadc958fd5222f26f91ed127f8c6fb2c465dc2

13 files changed, 682 insertions, 2 deletions

diff --git a/firmware/target/arm/rk27xx/backlight-rk27xx.c b/firmware/target/arm/rk27xx/backlight-rk27xx.c
index f95a63ecde..9ea9c9984e 100644
--- a/firmware/target/arm/rk27xx/backlight-rk27xx.c
+++ b/firmware/target/arm/rk27xx/backlight-rk27xx.c
@@ -61,6 +61,13 @@ static const unsigned short lin_brightness[] = {
     562, 579, 596, 616, 637, 660, 684, 711,
     739, 770, 802, 837, 874, 914, 955, 1000
 };
+#elif defined(MA9)
+static const unsigned short lin_brightness[] = {
+      2,   4,   7,  10,  15,  21,  28,  36,
+     46,  58,  72,  87, 104, 124, 146, 171,
+    198, 227, 260, 295, 334, 376, 421, 470,
+    522, 578, 638, 702, 770, 842, 918, 1000
+};
 #endif
 
 bool _backlight_init(void)
diff --git a/firmware/target/arm/rk27xx/debug-rk27xx.c b/firmware/target/arm/rk27xx/debug-rk27xx.c
index 98ceaf634a..a73ca05c77 100644
--- a/firmware/target/arm/rk27xx/debug-rk27xx.c
+++ b/firmware/target/arm/rk27xx/debug-rk27xx.c
@@ -32,7 +32,7 @@
 
 #ifdef RK27_GENERIC
 #define DEBUG_CANCEL BUTTON_VOL
-#elif defined(HM60X) || defined(HM801)
+#elif defined(HM60X) || defined(HM801) || defined(MA9)
 #define DEBUG_CANCEL BUTTON_LEFT
 #endif
 
diff --git a/firmware/target/arm/rk27xx/lcdif-rk27xx.c b/firmware/target/arm/rk27xx/lcdif-rk27xx.c
index d5847392a3..3f22057f2f 100644
--- a/firmware/target/arm/rk27xx/lcdif-rk27xx.c
+++ b/firmware/target/arm/rk27xx/lcdif-rk27xx.c
@@ -56,7 +56,7 @@ static uint32_t lcd_data_transform(uint32_t data)
     /* g = ((data & 0x00000300) >> 2) | ((data & 0x000000e0) >> 3); */
     g = ((data & 0x00000300) << 6) | ((data & 0x000000e0) << 5);
     b = (data & 0x00000001f) << 3;
-#elif defined(HM60X) || defined(HM801)
+#elif defined(HM60X) || defined(HM801) || defined(MA9)
     /* 16 bit interface */
     r = (data & 0x0000f800) << 8;
     g = (data & 0x000007e0) << 5;
diff --git a/firmware/target/arm/rk27xx/ma/audio-ma.c b/firmware/target/arm/rk27xx/ma/audio-ma.c
new file mode 100644
index 0000000000..c870ca09b8
--- /dev/null
+++ b/firmware/target/arm/rk27xx/ma/audio-ma.c
@@ -0,0 +1,85 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2013 Andrew Ryabinin
+ *
+ * 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 "audiohw.h"
+#include "df1704.h"
+#include "pca9555.h"
+#include "i2c-rk27xx.h"
+#include "system.h"
+
+void df1704_set_ml_dir(const int dir)
+{
+    pca9555_write_config(dir<<8, (1<<8));
+}
+
+void df1704_set_ml(const int val)
+{
+    pca9555_write_output(val<<8, 1<<8);
+}
+
+void df1704_set_mc(const int val)
+{
+    pca9555_write_output(val<<1, 1<<1);
+}
+
+void df1704_set_md(const int val)
+{
+    pca9555_write_output(val<<0, 1<<0);
+}
+
+static void pop_ctrl(const int val)
+{
+    pca9555_write_output(val<<5, 1<<5);
+}
+
+static void amp_enable(const int val)
+{
+    pca9555_write_output(val<<3, 1<<3);
+}
+
+static void df1704_enable(const int val)
+{
+    pca9555_write_output(val<<4, 1<<4);
+}
+
+
+void audiohw_postinit(void)
+{
+    pop_ctrl(0);
+    sleep(HZ/4);
+    df1704_enable(1);
+    amp_enable(1);
+    sleep(HZ/100);
+    df1704_init();
+    sleep(HZ/4);
+    pop_ctrl(1);
+}
+
+void audiohw_close(void)
+{
+    df1704_mute();
+    pop_ctrl(0);
+    sleep(HZ/5);
+    amp_enable(0);
+    df1704_enable(0);
+    sleep(HZ/5);
+    pop_ctrl(1);
+}
diff --git a/firmware/target/arm/rk27xx/ma/button-ma.c b/firmware/target/arm/rk27xx/ma/button-ma.c
new file mode 100644
index 0000000000..f8da786e4f
--- /dev/null
+++ b/firmware/target/arm/rk27xx/ma/button-ma.c
@@ -0,0 +1,74 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2013 Andrew Ryabinin
+ *
+ * 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 "button.h"
+#include "adc.h"
+#include "backlight.h"
+#include "pca9555.h"
+
+extern unsigned short pca9555_in_ports;
+
+/* upper bounds of key's voltage values */
+#define ADV_KEYUP       0x05B + 0x10
+#define ADV_KEYDOWN     0x0F3 + 0x10
+#define ADV_KEYLEFT     0x190 + 0x10
+#define ADV_KEYRIGHT    0x22C + 0x10
+#define ADV_KEYMENU     0x2CA + 0x10
+
+
+void button_init_device(void) {
+    GPIO_PCCON &= ~(1<<1);
+    pca9555_init();
+}
+
+int button_read_device(void) {
+    int adc_val = adc_read(ADC_BUTTONS);
+    int button = 0;
+
+    if (adc_val < ADV_KEYLEFT) {
+        if (adc_val < ADV_KEYDOWN) {
+            if (adc_val < ADV_KEYUP) {
+                button = BUTTON_UP;
+            } else {
+                button =  BUTTON_DOWN;
+            }
+        } else {
+            button = BUTTON_LEFT;
+        }
+    } else {
+        if (adc_val < ADV_KEYRIGHT) {
+            button = BUTTON_RIGHT;
+        } else if (adc_val < ADV_KEYMENU) {
+            button = BUTTON_MENU;
+        }
+    }
+
+    if (GPIO_PCDR & (1<<1)) {
+        button |= BUTTON_PLAY;
+    }
+    if (((GPIO_PFDR&(1<<2)) == 0) &&
+        ((pca9555_in_ports & (1<<15)) == 0)) {
+        button |= BUTTON_BACK;
+    }
+    return button;
+}
diff --git a/firmware/target/arm/rk27xx/ma/button-target.h b/firmware/target/arm/rk27xx/ma/button-target.h
new file mode 100644
index 0000000000..56e8e903b0
--- /dev/null
+++ b/firmware/target/arm/rk27xx/ma/button-target.h
@@ -0,0 +1,40 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2013 Andrew Ryabinin
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+#ifndef _BUTTON_TARGET_H_
+#define _BUTTON_TARGET_H_
+
+#define BUTTON_UP          0x00000001
+#define BUTTON_DOWN        0x00000002
+#define BUTTON_LEFT        0x00000004
+#define BUTTON_RIGHT       0x00000008
+#define BUTTON_PLAY        0x00000010
+#define BUTTON_MENU        0x00000020
+#define BUTTON_BACK        0x00000040
+
+#define BUTTON_MAIN (BUTTON_UP|BUTTON_DOWN| \
+                     BUTTON_RIGHT|BUTTON_LEFT| \
+                     BUTTON_PLAY|BUTTON_MENU|BUTTON_BACK)
+
+#define POWEROFF_BUTTON BUTTON_PLAY
+#define POWEROFF_COUNT 30
+
+#endif /* _BUTTON_TARGET_H_ */
diff --git a/firmware/target/arm/rk27xx/ma/lcd-ma.c b/firmware/target/arm/rk27xx/ma/lcd-ma.c
new file mode 100644
index 0000000000..ad67352eb7
--- /dev/null
+++ b/firmware/target/arm/rk27xx/ma/lcd-ma.c
@@ -0,0 +1,206 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C)  2013 Andrew Ryabinin
+ *
+ *
+ * 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 "kernel.h"
+#include "lcd.h"
+#include "system.h"
+#include "cpu.h"
+#include "lcdif-rk27xx.h"
+
+static bool display_on = false;
+
+
+void lcd_display_init(void)
+{
+    int i;
+    unsigned int x, y;
+
+    lcd_cmd(0x00B9);
+    lcd_data(0x00FF);
+    lcd_data(0x0093);
+    lcd_data(0x0042);
+
+    lcd_cmd(0x0021); /* display inversion on ??? */
+
+    /* memory access control */
+    lcd_cmd(0x0036);
+    lcd_data(0x00C9);
+
+    /* set 16-bit pixel format */
+    lcd_cmd(0x003A);
+    lcd_data(0x0005);
+
+    /* Setup color depth conversion lookup table */
+    lcd_cmd(0x002D);
+    /* red */
+    for(i = 0; i < 32; i++)
+        lcd_data(2*i);
+    /* green */
+    for(i = 0; i < 64; i++)
+        lcd_data(1*i);
+    /* blue */
+    for(i = 0; i < 32; i++)
+        lcd_data(2*i);
+
+    /* power control settings */
+    lcd_cmd(0x00C0);
+    lcd_data(0x0025); /* VREG1OUT 4.70V */
+    lcd_data(0x000A); /* VCOM 2.8V */
+
+    lcd_cmd(0x00C1);
+    lcd_data(0x0001);
+
+    lcd_cmd(0x00C5);
+    lcd_data(0x002F);
+    lcd_data(0x0027);
+
+    lcd_cmd(0x00C7);
+    lcd_data(0x00D3);
+
+    lcd_cmd(0x00B8);
+    lcd_data(0x000B);
+
+    /* Positive gamma correction */
+    lcd_cmd(0x00E0);
+    lcd_data(0x000F);
+    lcd_data(0x0022);
+    lcd_data(0x001D);
+    lcd_data(0x000B);
+    lcd_data(0x000F);
+    lcd_data(0x0007);
+    lcd_data(0x004C);
+    lcd_data(0x0076);
+    lcd_data(0x003C);
+    lcd_data(0x0009);
+    lcd_data(0x0016);
+    lcd_data(0x0007);
+    lcd_data(0x0012);
+    lcd_data(0x000B);
+    lcd_data(0x0008);
+
+    /* Negative Gamma Correction */
+    lcd_cmd(0x00E1);
+    lcd_data(0x0008);
+    lcd_data(0x001F);
+    lcd_data(0x0024);
+    lcd_data(0x0003);
+    lcd_data(0x000E);
+    lcd_data(0x0003);
+    lcd_data(0x0035);
+    lcd_data(0x0023);
+    lcd_data(0x0045);
+    lcd_data(0x0001);
+    lcd_data(0x000B);
+    lcd_data(0x0007);
+    lcd_data(0x002F);
+    lcd_data(0x0036);
+    lcd_data(0x000F);
+
+    lcd_cmd(0x00F2);
+    lcd_data(0x0000);
+
+    /* exit sleep */
+    lcd_cmd(0x0011);
+    udelay(5000);
+    lcd_cmd(0x0029);
+
+    lcd_cmd(0x002C);
+    for (x = 0; x < LCD_WIDTH; x++)
+        for(y=0; y < LCD_HEIGHT; y++)
+            lcd_data(0x00);
+
+    display_on = true;
+}
+
+void lcd_enable (bool on)
+{
+    if (on == display_on)
+        return;
+
+    lcdctrl_bypass(1);
+    LCDC_CTRL |= RGB24B;
+
+    if (on) {
+        lcd_cmd(0x11);
+    } else {
+        lcd_cmd(0x10);
+    }
+    udelay(5000);
+
+    display_on = on;
+    LCDC_CTRL &= ~RGB24B;
+}
+
+void lcd_set_gram_area(int x, int y, int width, int height)
+{
+    lcdctrl_bypass(1);
+    LCDC_CTRL |= RGB24B;
+
+    lcd_cmd(0x002A);
+    lcd_data((x&0xff00)>>8);
+    lcd_data(x&0x00ff);
+    lcd_data(((width-1)&0xff00)>>8);
+    lcd_data((width-1)&0x00ff);
+    lcd_cmd(0x002B);
+    lcd_data((y&0xff00)>>8);
+    lcd_data(y&0x00ff);
+    lcd_data(((height-1)&0xff00)>>8);
+    lcd_data((height-1)&0x00ff);
+
+    lcd_cmd(0x2c);
+    LCDC_CTRL &= ~RGB24B;
+}
+
+void lcd_update_rect(int x, int y, int width, int height)
+{
+    int px = x, py = y;
+    int pxmax = x + width, pymax = y + height;
+
+    lcd_set_gram_area(x, y, pxmax, pymax);
+
+    for (py = y; py < pymax; py++)
+        for (px = x; px < pxmax; px++)
+            LCD_DATA = (*FBADDR(px, py));
+
+}
+
+
+bool lcd_active()
+{
+    return display_on;
+}
+
+/* Blit a YUV bitmap directly to the LCD */
+void lcd_blit_yuv(unsigned char * const src[3],
+                  int src_x, int src_y, int stride,
+                  int x, int y, int width, int height)
+{
+    (void)src;
+    (void)src_x;
+    (void)src_y;
+    (void)stride;
+    (void)x;
+    (void)y;
+    (void)width;
+    (void)height;
+}
diff --git a/firmware/target/arm/rk27xx/ma/lcd-target.h b/firmware/target/arm/rk27xx/ma/lcd-target.h
new file mode 100644
index 0000000000..f411a53de2
--- /dev/null
+++ b/firmware/target/arm/rk27xx/ma/lcd-target.h
@@ -0,0 +1,27 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C)  2013 Andrew Ryabinin
+ *
+ *
+ * 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.
+ *
+ ****************************************************************************/
+#ifndef LCD_TARGET_H
+#define LCD_TARGET_H
+
+#define LCD_DATABUS_WIDTH LCDIF_16BIT
+
+#endif
diff --git a/firmware/target/arm/rk27xx/ma/pca9555-ma.c b/firmware/target/arm/rk27xx/ma/pca9555-ma.c
new file mode 100644
index 0000000000..9611d84590
--- /dev/null
+++ b/firmware/target/arm/rk27xx/ma/pca9555-ma.c
@@ -0,0 +1,93 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2013 Andrew Ryabinin
+ *
+ * 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 "system.h"
+#include "i2c-rk27xx.h"
+#include "pca9555.h"
+
+static struct semaphore pca9555_sem;
+static char pca9555_thread_stack[DEFAULT_STACK_SIZE];
+volatile unsigned short pca9555_in_ports;
+
+void INT_GPIO1(void)
+{
+    if (GPIO1_ISR & (1<<10)) { /* GPIO F2 pin */
+        GPIO_IEF &= ~(1<<2);
+        GPIO_ICF |= (1<<2);
+        semaphore_release(&pca9555_sem);
+    }
+}
+
+static void pca9555_read_thread(void)
+{
+    while(1) {
+        if ((GPIO_PFDR&(1<<2)) == 0) {
+            pca9555_in_ports = pca9555_read_input();
+        } else {
+            pca9555_in_ports = (1<<15)|(1<<11); /* restore defaults */
+        }
+        sleep(HZ/20);
+        GPIO_IEF |= (1<<2);
+        semaphore_wait(&pca9555_sem, TIMEOUT_BLOCK);
+    }
+}
+
+static void pca9555_ports_init(void)
+{
+    unsigned short data = 0;
+
+    data = 0xf800; /* port0 - pins 0-7 output, port1 - pins 0-2 output, pins 3-7 input */
+    pca9555_write_config(data, 0xffff);
+
+    /*
+     *   IO0-7    IO0-6   IO0-5    IO0_4    IO0_3    IO0_2     IO0_1      IO0_0
+     * USB_SEL   KP_LED     POP   DAC_EN   AMP_EN   SPI_CS   SPI_CLK   SPI_DATA
+     *   1:MSD    1:OFF       1        0        0        1         1          1
+     */
+    data = ((1<<7)|(1<<6)|(1<<5)|(0<<4)|(0<<3)|(1<<2)|(1<<1)|(1<<0));
+
+    /*
+     *  IO1-2    IO1_1       IO1_0
+     * CHG_EN   DAC_EN   DF1704_CS
+     *      1        0           1
+     */
+    data |= ((1<<10)|(0<<9)|(1<<8));
+    pca9555_write_output(data, 0xffff);
+}
+
+void pca9555_target_init(void)
+{
+    GPIO_PFCON &= ~(1<<2); /* PF2 for PCA9555 input INT */
+
+    pca9555_ports_init();
+    semaphore_init(&pca9555_sem, 1, 0);
+
+    INTC_IMR |= IRQ_ARM_GPIO1;
+    INTC_IECR |= IRQ_ARM_GPIO1;
+    GPIO_ISF |= (1<<2);
+
+    create_thread(pca9555_read_thread,
+                  pca9555_thread_stack,
+                  sizeof(pca9555_thread_stack),
+                  0,
+                  "pca9555_read" IF_PRIO(, PRIORITY_SYSTEM)
+                  IF_COP(, CPU));
+}
diff --git a/firmware/target/arm/rk27xx/ma/pca9555-target.h b/firmware/target/arm/rk27xx/ma/pca9555-target.h
new file mode 100644
index 0000000000..25cb1dac84
--- /dev/null
+++ b/firmware/target/arm/rk27xx/ma/pca9555-target.h
@@ -0,0 +1,27 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2013 Andrew Ryabinin
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+#ifndef _PCA9555_TARGET_H
+#define _PCA9555_TARGET_H
+
+#define PCA9555_I2C_ADDR    0x40
+
+#endif
diff --git a/firmware/target/arm/rk27xx/ma/power-ma.c b/firmware/target/arm/rk27xx/ma/power-ma.c
new file mode 100644
index 0000000000..fb7c23251a
--- /dev/null
+++ b/firmware/target/arm/rk27xx/ma/power-ma.c
@@ -0,0 +1,58 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright © 2013 Andrew Ryabinin
+ *
+ * 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 <stdbool.h>
+#include "config.h"
+#include "inttypes.h"
+#include "power.h"
+#include "panic.h"
+#include "system.h"
+#include "usb_core.h"   /* for usb_charging_maxcurrent_change */
+
+void power_off(void)
+{
+    GPIO_PCDR |= (1<<0);
+    GPIO_PCCON &= ~(1<<0);
+    while(1);
+}
+
+void power_init(void)
+{
+    GPIO_PCDR |= (1<<0);
+    GPIO_PCCON |= (1<<0);
+}
+
+unsigned int power_input_status(void)
+{
+    unsigned int status = POWER_INPUT_NONE;
+
+    if (charging_state())
+        status |= POWER_INPUT_MAIN_CHARGER;
+    return status;
+}
+
+extern unsigned short pca9555_in_ports;
+
+bool charging_state(void)
+{
+    return (((GPIO_PFDR&(1<<2)) == 0) && ((pca9555_in_ports&(1<<11)) == 0));
+}
+
diff --git a/firmware/target/arm/rk27xx/ma/powermgmt-ma.c b/firmware/target/arm/rk27xx/ma/powermgmt-ma.c
new file mode 100644
index 0000000000..23196d1591
--- /dev/null
+++ b/firmware/target/arm/rk27xx/ma/powermgmt-ma.c
@@ -0,0 +1,61 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright © 2013 Andrew Ryabinin
+ *
+ * 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 "adc.h"
+#include "adc-target.h"
+#include "powermgmt.h"
+
+/**
+ * Battery voltage calculation and discharge/charge curves for the HiFi E.T MA9.
+ */
+
+const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
+{
+    /* TODO: this is just an initial guess */
+    6700
+};
+
+const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
+{
+    6600
+};
+
+/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
+const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
+{
+    /* Uncalibrated curve */
+    { 6600, 6936, 7042, 7124, 7218, 7288, 7382, 7534, 7674, 7838, 8200 }
+};
+
+/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
+const unsigned short percent_to_volt_charge[11] =
+    /* TODO: simple copy of discharge curve */
+    { 6600, 6936, 7042, 7124, 7218, 7288, 7382, 7534, 7674, 7838, 8200 };
+
+/* full-scale ADC readout (2^10) in millivolt */
+#define BATTERY_SCALE_FACTOR  9170
+
+/* Returns battery voltage from ADC [millivolts] */
+int _battery_voltage(void)
+{
+    return (adc_read(ADC_BATTERY) * BATTERY_SCALE_FACTOR) >> 10;
+}
diff --git a/firmware/target/arm/rk27xx/sd-rk27xx.c b/firmware/target/arm/rk27xx/sd-rk27xx.c
index a3ff344d78..cb870c9e38 100644
--- a/firmware/target/arm/rk27xx/sd-rk27xx.c
+++ b/firmware/target/arm/rk27xx/sd-rk27xx.c
@@ -132,6 +132,8 @@ static inline bool card_detect_target(void)
     return !(GPIO_PCDR & 0x80);
 #elif defined(HM60X) || defined(HM801)
     return !(GPIO_PFDR & (1<<2));
+#elif defined(MA9)
+    return (GPIO_PCDR & 0x80);
 #else
 #error "Unknown target"
 #endif