From 0709f0a5c60b5525ff98708887f5f1e5b0b570c2 Mon Sep 17 00:00:00 2001
From: Maurus Cuelenaere <mcuelenaere@gmail.com>
Date: Mon, 14 Jul 2008 15:03:10 +0000
Subject: Add preliminary support for the Onda VX747 (MIPS target)

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18032 a1c6a512-1295-4272-9138-f99709370657
---
 .../ingenic_jz47xx/onda_vx747/button-onda_vx747.c  | 123 +++++++++++++++++++++
 1 file changed, 123 insertions(+)
 create mode 100755 firmware/target/mips/ingenic_jz47xx/onda_vx747/button-onda_vx747.c

(limited to 'firmware/target/mips/ingenic_jz47xx/onda_vx747/button-onda_vx747.c')

diff --git a/firmware/target/mips/ingenic_jz47xx/onda_vx747/button-onda_vx747.c b/firmware/target/mips/ingenic_jz47xx/onda_vx747/button-onda_vx747.c
new file mode 100755
index 0000000000..e42325bcb3
--- /dev/null
+++ b/firmware/target/mips/ingenic_jz47xx/onda_vx747/button-onda_vx747.c
@@ -0,0 +1,123 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2008 by Maurus Cuelenaere
+ *
+ * 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 "jz4740.h"
+#include "button-target.h"
+
+#define BTN_VOL_DOWN (1 << 27)
+#define BTN_VOL_UP   (1 << 0)
+#define BTN_MENU     (1 << 1)
+#define BTN_OFF      (1 << 29)
+#define BTN_HOLD     (1 << 16)
+#define BTN_MASK     (BTN_VOL_DOWN | BTN_VOL_UP \
+                      | BTN_MENU | BTN_OFF )
+
+#define SADC_CFG_INIT (   \
+                             (2 << SADC_CFG_CLKOUT_NUM_BIT) |  \
+                                        SADC_CFG_XYZ1Z2                      |  \
+                                        SADC_CFG_SNUM_5                |  \
+                                        (1 << SADC_CFG_CLKDIV_BIT)    |  \
+                                        SADC_CFG_PBAT_HIGH             |  \
+                                        SADC_CFG_CMD_INT_PEN )
+
+bool button_hold(void)
+{
+    return (REG_GPIO_PXPIN(3) ^ BTN_HOLD ? 1 : 0);
+}
+
+void button_init_device(void)
+{
+    REG_SADC_ENA = 0;
+    REG_SADC_STATE &= (~REG_SADC_STATE);
+    REG_SADC_CTRL = 0x1f;
+    
+    __cpm_start_sadc();
+    REG_SADC_CFG = SADC_CFG_INIT;
+    
+    REG_SADC_SAMETIME = 1;
+    REG_SADC_WAITTIME = 1000; //per 100 HZ
+    REG_SADC_STATE &= (~REG_SADC_STATE);
+    REG_SADC_CTRL &= (~(SADC_CTRL_PENDM | SADC_CTRL_TSRDYM));
+    REG_SADC_ENA = SADC_ENA_TSEN; // | REG_SADC_ENA;//SADC_ENA_TSEN | SADC_ENA_PBATEN | SADC_ENA_SADCINEN;
+}
+
+static int touch_to_pixels(short x, short y)
+{ 
+    /* X:300 -> 3800 Y:300->3900 */
+    x -= 300;
+    y -= 300;
+    
+    x /= 3200 / LCD_WIDTH;
+    y /= 3600 / LCD_HEIGHT;
+
+    return (x << 16) | y;
+}
+
+int button_read_device(int *data)
+{
+    unsigned int key = ~REG_GPIO_PXPIN(3);
+    int ret = 0;
+    if(key & BTN_MASK)
+    {
+        if(key & BTN_VOL_DOWN)
+            ret |= BUTTON_VOL_DOWN;
+        if(key & BTN_VOL_UP)
+            ret |= BUTTON_VOL_UP;
+        if(key & BTN_MENU)
+            ret |= BUTTON_MENU;
+        if(key & BTN_OFF)
+            ret |= BUTTON_POWER;
+    }
+    
+    if(REG_SADC_STATE & (SADC_CTRL_TSRDYM|SADC_STATE_PEND))
+    {
+        if(REG_SADC_STATE & SADC_CTRL_PENDM)
+        {
+            REG_SADC_CTRL &= (~(SADC_CTRL_PENUM |  SADC_CTRL_TSRDYM));
+            REG_SADC_CTRL |= (SADC_CTRL_PENDM);
+            unsigned int dat;
+            unsigned short xData,yData;
+            short tsz1Data,tsz2Data;
+            
+            dat = REG_SADC_TSDAT;
+            
+            xData = (dat >>  0) & 0xfff;
+            yData = (dat >> 16) & 0xfff;
+            
+            dat = REG_SADC_TSDAT;
+            tsz1Data = (dat >>  0) & 0xfff;
+            tsz2Data = (dat >> 16) & 0xfff;
+            
+            *data = touch_to_pixels(xData, yData);
+            
+            tsz1Data = tsz2Data - tsz1Data;
+        }
+        REG_SADC_STATE = 0;
+        //__intc_unmask_irq(IRQ_SADC);
+    }
+
+    return ret;
+}
+void button_set_touch_available(void)
+{
+    return;
+}
-- 
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