9 files changed, 641 insertions, 0 deletions

diff --git a/firmware/target/arm/pnx0101/iriver-ifp7xx/adc-ifp7xx.c b/firmware/target/arm/pnx0101/iriver-ifp7xx/adc-ifp7xx.c
new file mode 100644
index 0000000000..79b1ad0fcb
--- /dev/null
+++ b/firmware/target/arm/pnx0101/iriver-ifp7xx/adc-ifp7xx.c
@@ -0,0 +1,57 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006 by Barry Wardell
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "config.h"
+#include "cpu.h"
+#include "system.h"
+#include "kernel.h"
+#include "thread.h"
+#include "adc.h"
+
+static unsigned short adcdata[NUM_ADC_CHANNELS];
+
+unsigned short adc_read(int channel)
+{
+    return adcdata[channel];
+}
+
+static void adc_tick(void)
+{
+    if (ADCST & 0x10) {
+        adcdata[0] = ADCCH0 & 0x3ff;
+        adcdata[1] = ADCCH1 & 0x3ff;
+        adcdata[2] = ADCCH2 & 0x3ff;
+        adcdata[3] = ADCCH3 & 0x3ff;
+        adcdata[4] = ADCCH4 & 0x3ff;
+        ADCST = 0xa;
+    }
+}
+
+void adc_init(void)
+{
+    ADCR24 = 0xaaaaa;
+    ADCR28 = 0;
+    ADCST = 2;
+    ADCST = 0xa;
+
+    while (!(ADCST & 0x10));
+    adc_tick();
+  
+    tick_add_task(adc_tick);
+}
+
diff --git a/firmware/target/arm/pnx0101/iriver-ifp7xx/adc-target.h b/firmware/target/arm/pnx0101/iriver-ifp7xx/adc-target.h
new file mode 100644
index 0000000000..8e5e6edbc5
--- /dev/null
+++ b/firmware/target/arm/pnx0101/iriver-ifp7xx/adc-target.h
@@ -0,0 +1,29 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006 by Barry Wardell
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#ifndef _ADC_TARGET_H_
+#define _ADC_TARGET_H_
+
+#define NUM_ADC_CHANNELS 5
+
+#define ADC_BUTTONS     0
+#define ADC_BATTERY     1
+#define ADC_BUTTON_PLAY 2
+#define ADC_UNREG_POWER ADC_BATTERY /* For compatibility */
+
+#endif
diff --git a/firmware/target/arm/pnx0101/iriver-ifp7xx/backlight-ifp7xx.c b/firmware/target/arm/pnx0101/iriver-ifp7xx/backlight-ifp7xx.c
new file mode 100644
index 0000000000..c0dc3974c0
--- /dev/null
+++ b/firmware/target/arm/pnx0101/iriver-ifp7xx/backlight-ifp7xx.c
@@ -0,0 +1,33 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006 by Barry Wardell
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "config.h"
+#include "cpu.h"
+#include "system.h"
+#include "backlight.h"
+#include "lcd.h"
+
+void __backlight_on(void)
+{
+    GPIO3_SET = 1;
+}
+
+void __backlight_off(void)
+{
+    GPIO3_CLR = 1;
+}
diff --git a/firmware/target/arm/pnx0101/iriver-ifp7xx/button-ifp7xx.c b/firmware/target/arm/pnx0101/iriver-ifp7xx/button-ifp7xx.c
new file mode 100644
index 0000000000..52e29fdfdf
--- /dev/null
+++ b/firmware/target/arm/pnx0101/iriver-ifp7xx/button-ifp7xx.c
@@ -0,0 +1,89 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006 by Barry Wardell
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+
+#include <stdlib.h>
+#include "config.h"
+#include "cpu.h"
+#include "system.h"
+#include "button.h"
+#include "kernel.h"
+#include "backlight.h"
+#include "adc.h"
+#include "system.h"
+
+
+void button_init_device(void)
+{
+
+}
+
+bool button_hold(void)
+{
+    return (GPIO5_READ & 4) ? false : true;
+}
+
+/*
+ * Get button pressed from hardware
+ */
+int button_read_device(void)
+{
+    int btn = BUTTON_NONE;
+    int data;
+    static bool hold_button = false;
+    bool hold_button_old;
+
+    /* normal buttons */
+    hold_button_old = hold_button;
+    hold_button = button_hold();
+
+    if (hold_button != hold_button_old)
+        backlight_hold_changed(hold_button);
+
+    if (!button_hold())
+    {          
+        data = adc_read(ADC_BUTTONS);
+        if (data < 0x35c)
+        {
+            if (data < 0x151)
+                if (data < 0xc7)
+                    if (data < 0x41)
+                        btn = BUTTON_LEFT;
+                    else
+                        btn = BUTTON_RIGHT;
+                else
+                    btn = BUTTON_SELECT;
+            else
+                if (data < 0x268)
+                    if (data < 0x1d7)
+                        btn = BUTTON_UP;
+                    else
+                        btn = BUTTON_DOWN;
+                else
+                    if (data < 0x2f9)
+                        btn = BUTTON_EQ;
+                    else
+                        btn = BUTTON_MODE;
+        }
+
+        if (adc_read(ADC_BUTTON_PLAY) < 0x64)
+            btn |= BUTTON_PLAY;
+    }
+    return btn;
+}
diff --git a/firmware/target/arm/pnx0101/iriver-ifp7xx/button-target.h b/firmware/target/arm/pnx0101/iriver-ifp7xx/button-target.h
new file mode 100644
index 0000000000..954a2dfe9c
--- /dev/null
+++ b/firmware/target/arm/pnx0101/iriver-ifp7xx/button-target.h
@@ -0,0 +1,56 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006 by Barry Wardell
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+/* Custom written for the ifp7xx */
+
+#ifndef _BUTTON_TARGET_H_
+#define _BUTTON_TARGET_H_
+
+#include <stdbool.h>
+#include "config.h"
+
+#define HAS_BUTTON_HOLD
+
+bool button_hold(void);
+void button_init_device(void);
+int button_read_device(void);
+
+/* iriver IFP7XX specific button codes */
+
+#define BUTTON_PLAY         0x00000001
+#define BUTTON_SELECT       0x00000002
+
+#define BUTTON_LEFT         0x00000004
+#define BUTTON_RIGHT        0x00000008
+#define BUTTON_UP           0x00000010
+#define BUTTON_DOWN         0x00000020
+
+#define BUTTON_MODE         0x00000040
+#define BUTTON_EQ           0x00000080
+
+#define BUTTON_MAIN (BUTTON_PLAY|BUTTON_SELECT\
+                |BUTTON_LEFT|BUTTON_RIGHT|BUTTON_UP|BUTTON_DOWN\
+                |BUTTON_MODE|BUTTON_EQ)
+
+#define BUTTON_REMOTE 0
+
+#define POWEROFF_BUTTON BUTTON_PLAY
+#define POWEROFF_COUNT 40
+
+#endif /* _BUTTON_TARGET_H_ */
diff --git a/firmware/target/arm/pnx0101/iriver-ifp7xx/lcd-ifp7xx.c b/firmware/target/arm/pnx0101/iriver-ifp7xx/lcd-ifp7xx.c
new file mode 100644
index 0000000000..0aacd8af67
--- /dev/null
+++ b/firmware/target/arm/pnx0101/iriver-ifp7xx/lcd-ifp7xx.c
@@ -0,0 +1,208 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 by Alan Korr
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * 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"
+
+/*** definitions ***/
+
+#define LCD_SET_LOWER_COLUMN_ADDRESS              ((char)0x00)
+#define LCD_SET_HIGHER_COLUMN_ADDRESS             ((char)0x10)
+#define LCD_SET_INTERNAL_REGULATOR_RESISTOR_RATIO ((char)0x20)
+#define LCD_SET_POWER_CONTROL_REGISTER            ((char)0x28)
+#define LCD_SET_DISPLAY_START_LINE                ((char)0x40)
+#define LCD_SET_CONTRAST_CONTROL_REGISTER         ((char)0x81)
+#define LCD_SET_SEGMENT_REMAP                     ((char)0xA0)
+#define LCD_SET_LCD_BIAS                          ((char)0xA2)
+#define LCD_SET_ENTIRE_DISPLAY_OFF                ((char)0xA4)
+#define LCD_SET_ENTIRE_DISPLAY_ON                 ((char)0xA5)
+#define LCD_SET_NORMAL_DISPLAY                    ((char)0xA6)
+#define LCD_SET_REVERSE_DISPLAY                   ((char)0xA7)
+#define LCD_SET_MULTIPLEX_RATIO                   ((char)0xA8)
+#define LCD_SET_BIAS_TC_OSC                       ((char)0xA9)
+#define LCD_SET_1OVER4_BIAS_RATIO                 ((char)0xAA)
+#define LCD_SET_INDICATOR_OFF                     ((char)0xAC)
+#define LCD_SET_INDICATOR_ON                      ((char)0xAD)
+#define LCD_SET_DISPLAY_OFF                       ((char)0xAE)
+#define LCD_SET_DISPLAY_ON                        ((char)0xAF)
+#define LCD_SET_PAGE_ADDRESS                      ((char)0xB0)
+#define LCD_SET_COM_OUTPUT_SCAN_DIRECTION         ((char)0xC0)
+#define LCD_SET_TOTAL_FRAME_PHASES                ((char)0xD2)
+#define LCD_SET_DISPLAY_OFFSET                    ((char)0xD3)
+#define LCD_SET_READ_MODIFY_WRITE_MODE            ((char)0xE0)
+#define LCD_SOFTWARE_RESET                        ((char)0xE2)
+#define LCD_NOP                                   ((char)0xE3)
+#define LCD_SET_END_OF_READ_MODIFY_WRITE_MODE     ((char)0xEE)
+
+/* LCD command codes */
+#define LCD_CNTL_RESET          0xe2    /* Software reset */
+#define LCD_CNTL_POWER          0x2f    /* Power control */
+#define LCD_CNTL_CONTRAST       0x81    /* Contrast */
+#define LCD_CNTL_OUTSCAN        0xc8    /* Output scan direction */
+#define LCD_CNTL_SEGREMAP       0xa1    /* Segment remap */
+#define LCD_CNTL_DISPON         0xaf    /* Display on */
+
+#define LCD_CNTL_PAGE           0xb0    /* Page address */
+#define LCD_CNTL_HIGHCOL        0x10    /* Upper column address */
+#define LCD_CNTL_LOWCOL         0x00    /* Lower column address */
+
+/*** driver routines ***/
+
+void lcd_write_command(int cmd)
+{
+    while ((LCDSTAT & 3) != 3);
+    LCDCMD = cmd;
+}
+
+void lcd_write_data( const unsigned char* data, int count )
+{
+    int i;
+    for (i=0; i < count; i++) {
+        while ((LCDSTAT & 3) != 3);
+        LCDDATA = data[i];
+    }
+}
+
+/*** hardware configuration ***/
+
+int lcd_default_contrast(void)
+{
+    return 45;
+}
+
+void lcd_set_contrast(int val)
+{
+    lcd_write_command(LCD_CNTL_CONTRAST);
+    lcd_write_command(val);
+}
+
+void lcd_set_invert_display(bool yesno)
+{
+    if (yesno) 
+        lcd_write_command(LCD_SET_REVERSE_DISPLAY);
+    else 
+        lcd_write_command(LCD_SET_NORMAL_DISPLAY);
+}
+
+/* turn the display upside down (call lcd_update() afterwards) */
+void lcd_set_flip(bool yesno)
+{
+    if (yesno)
+    {
+        lcd_write_command(LCD_SET_SEGMENT_REMAP);
+        lcd_write_command(LCD_SET_COM_OUTPUT_SCAN_DIRECTION);
+    }
+    else
+    {
+        lcd_write_command(LCD_SET_SEGMENT_REMAP | 0x01);
+        lcd_write_command(LCD_SET_COM_OUTPUT_SCAN_DIRECTION | 0x08);
+    }
+}
+
+void lcd_init_device(void)
+{
+    LCDREG10 = 0xf;
+    LCDREG04 = 0x4084;
+
+    /* inits like the original firmware */
+    lcd_write_command(LCD_SOFTWARE_RESET);
+    lcd_write_command(LCD_SET_INTERNAL_REGULATOR_RESISTOR_RATIO + 4);
+    lcd_write_command(LCD_SET_LCD_BIAS);
+    lcd_write_command(LCD_SET_POWER_CONTROL_REGISTER + 7);
+               /* power control register: op-amp=1, regulator=1, booster=1 */
+    lcd_write_command(LCD_SET_DISPLAY_ON);
+    lcd_write_command(LCD_SET_NORMAL_DISPLAY);
+    lcd_set_flip(false);
+    lcd_write_command(LCD_SET_DISPLAY_START_LINE + 0);
+    lcd_set_contrast(lcd_default_contrast());
+    lcd_write_command(LCD_SET_PAGE_ADDRESS);
+    lcd_write_command(LCD_SET_LOWER_COLUMN_ADDRESS + 0);
+    lcd_write_command(LCD_SET_HIGHER_COLUMN_ADDRESS + 0);
+
+    lcd_clear_display();
+    lcd_update();
+}
+
+/*** Update functions ***/
+
+/* Performance function that works with an external buffer
+   note that by and bheight are in 8-pixel units! */
+void lcd_blit(const unsigned char* data, int x, int by, int width,
+              int bheight, int stride)
+{
+    /* Copy display bitmap to hardware */
+    while (bheight--)
+    {
+        lcd_write_command (LCD_CNTL_PAGE | (by++ & 0xf));
+        lcd_write_command (LCD_CNTL_HIGHCOL | (((x+4)>>4) & 0xf));
+        lcd_write_command (LCD_CNTL_LOWCOL | ((x+4) & 0xf));
+
+        lcd_write_data(data, width);
+        data += stride;
+    }
+}
+
+
+/* Update the display.
+   This must be called after all other LCD functions that change the display. */
+void lcd_update(void) ICODE_ATTR;
+void lcd_update(void)
+{
+    int y;
+
+    /* Copy display bitmap to hardware */
+    for (y = 0; y < LCD_FBHEIGHT; y++)
+    {
+        lcd_write_command (LCD_CNTL_PAGE | (y & 0xf));
+        lcd_write_command (LCD_CNTL_HIGHCOL);
+        lcd_write_command (LCD_CNTL_LOWCOL | 4);
+
+        lcd_write_data (lcd_framebuffer[y], LCD_WIDTH);
+    }
+}
+
+/* Update a fraction of the display. */
+void lcd_update_rect(int, int, int, int) ICODE_ATTR;
+void lcd_update_rect(int x, int y, int width, int height)
+{
+    int ymax;
+
+    /* The Y coordinates have to work on even 8 pixel rows */
+    ymax = (y + height-1) >> 3;
+    y >>= 3;
+
+    if(x + width > LCD_WIDTH)
+        width = LCD_WIDTH - x;
+    if (width <= 0)
+        return; /* nothing left to do, 0 is harmful to lcd_write_data() */
+    if(ymax >= LCD_FBHEIGHT)
+        ymax = LCD_FBHEIGHT-1;
+
+    /* Copy specified rectange bitmap to hardware */
+    for (; y <= ymax; y++)
+    {
+        lcd_write_command (LCD_CNTL_PAGE | (y & 0xf));
+        lcd_write_command (LCD_CNTL_HIGHCOL | (((x+4) >> 4) & 0xf));
+        lcd_write_command (LCD_CNTL_LOWCOL | ((x+4) & 0xf));
+
+        lcd_write_data (&lcd_framebuffer[y][x], width);
+    }
+}
diff --git a/firmware/target/arm/pnx0101/iriver-ifp7xx/power-ifp7xx.c b/firmware/target/arm/pnx0101/iriver-ifp7xx/power-ifp7xx.c
new file mode 100644
index 0000000000..4e4f585298
--- /dev/null
+++ b/firmware/target/arm/pnx0101/iriver-ifp7xx/power-ifp7xx.c
@@ -0,0 +1,85 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 by Linus Nielsen Feltzing
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "config.h"
+#include "cpu.h"
+#include <stdbool.h>
+#include "adc.h"
+#include "kernel.h"
+#include "system.h"
+#include "power.h"
+#include "logf.h"
+#include "usb.h"
+
+#if CONFIG_TUNER
+
+static bool powered = false;
+
+bool radio_powered(void)
+{
+    return powered;
+}
+
+bool radio_power(bool status)
+{
+    bool old_status = powered;
+    powered = status;
+
+    return old_status;
+}
+
+#endif /* #if CONFIG_TUNER */
+
+#ifndef SIMULATOR
+
+void power_init(void)
+{
+}
+
+void ide_power_enable(bool on)
+{
+    (void)on;
+    /* no ide controller */
+}
+
+bool ide_powered(void)
+{
+    return true; /* pretend always powered if not controlable */
+}
+
+void power_off(void)
+{
+    set_irq_level(HIGHEST_IRQ_LEVEL);
+    GPIO1_CLR = 1 << 16;
+    GPIO2_SET = 1;
+    while(1)
+        yield();
+}
+
+#else
+
+void power_off(void)
+{
+}
+
+void ide_power_enable(bool on)
+{
+   (void)on;
+}
+
+#endif /* SIMULATOR */
diff --git a/firmware/target/arm/pnx0101/iriver-ifp7xx/system-target.h b/firmware/target/arm/pnx0101/iriver-ifp7xx/system-target.h
new file mode 100644
index 0000000000..dc11bb74da
--- /dev/null
+++ b/firmware/target/arm/pnx0101/iriver-ifp7xx/system-target.h
@@ -0,0 +1,34 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 by Alan Korr
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#ifndef SYSTEM_TARGET_H
+#define SYSTEM_TARGET_H
+
+#include "system-arm.h"
+
+#define CPUFREQ_DEFAULT 12000000
+#define CPUFREQ_NORMAL  48000000
+#define CPUFREQ_MAX     60000000
+
+typedef void (*interrupt_handler_t)(void);
+
+void irq_set_int_handler(int n, interrupt_handler_t handler);
+void irq_enable_int(int n);
+void irq_disable_int(int n);
+
+#endif /* SYSTEM_TARGET_H */
diff --git a/firmware/target/arm/pnx0101/iriver-ifp7xx/usb-ifp7xx.c b/firmware/target/arm/pnx0101/iriver-ifp7xx/usb-ifp7xx.c
new file mode 100644
index 0000000000..a22a227b15
--- /dev/null
+++ b/firmware/target/arm/pnx0101/iriver-ifp7xx/usb-ifp7xx.c
@@ -0,0 +1,50 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006 by Barry Wardell
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "config.h"
+#include "cpu.h"
+#include "kernel.h"
+#include "thread.h"
+#include "system.h"
+#include "debug.h"
+#include "ata.h"
+#include "fat.h"
+#include "disk.h"
+#include "panic.h"
+#include "lcd.h"
+#include "adc.h"
+#include "usb.h"
+#include "button.h"
+#include "sprintf.h"
+#include "string.h"
+
+void usb_init_device(void)
+{
+}
+
+bool usb_detect(void)
+{
+    /* TODO: Implement USB_ISP1582 */
+    return false;
+}
+
+void usb_enable(bool on)
+{
+    /* TODO: Implement USB_ISP1582 */
+    (void)on;
+}