* Get interrupts working (but crashes after 10-30secs)

* Make current_tick increase
* Convert button driver into SADC driver
* Make touchscreen handling work better (still needs good calibration routine)


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18240 a1c6a512-1295-4272-9138-f99709370657

2 files changed, 217 insertions, 131 deletions

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
deleted file mode 100644
index a6846ba18d..0000000000
--- a/firmware/target/mips/ingenic_jz47xx/onda_vx747/button-onda_vx747.c
+++ /dev/null
@@ -1,131 +0,0 @@
-/***************************************************************************
- *             __________               __   ___.
- *   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 & Y are switched */
-    x /= 3200 / LCD_WIDTH;
-    y /= 3600 / LCD_HEIGHT;
-    
-    y = LCD_HEIGHT - y;
-    
-    return (x << 16) | y;
-}
-
-int button_read_device(int *data)
-{
-    if(button_hold())
-        return 0;
-    
-    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 tszData;
-            
-            dat = REG_SADC_TSDAT;
-            
-            xData = (dat >>  0) & 0xfff;
-            yData = (dat >> 16) & 0xfff;
-            
-            dat = REG_SADC_TSDAT;
-            tszData = (dat >>  0) & 0xfff;
-            tszData = tszData - ((dat >> 16) & 0xfff);
-            
-            *data = touch_to_pixels(xData, yData);
-            
-        }
-        REG_SADC_STATE = 0;
-        //__intc_unmask_irq(IRQ_SADC);
-    }
-    else
-        *data = 0;
-
-    return ret;
-}
-void button_set_touch_available(void)
-{
-    return;
-}
diff --git a/firmware/target/mips/ingenic_jz47xx/onda_vx747/sadc-onda_vx747.c b/firmware/target/mips/ingenic_jz47xx/onda_vx747/sadc-onda_vx747.c
new file mode 100644
index 0000000000..b5c817c367
--- /dev/null
+++ b/firmware/target/mips/ingenic_jz47xx/onda_vx747/sadc-onda_vx747.c
@@ -0,0 +1,217 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   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 "system.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 TS_AD_COUNT      5
+#define M_SADC_CFG_SNUM  ((TS_AD_COUNT - 1) << SADC_CFG_SNUM_BIT)
+
+#define SADC_CFG_INIT (   \
+                        (2 << SADC_CFG_CLKOUT_NUM_BIT) |  \
+                        SADC_CFG_XYZ1Z2                |  \
+                        M_SADC_CFG_SNUM                |  \
+                        (2 << SADC_CFG_CLKDIV_BIT)     |  \
+                        SADC_CFG_PBAT_HIGH             |  \
+                        SADC_CFG_CMD_INT_PEN              \
+                        )
+
+static bool pendown_flag = false;
+static short x_pos = -1, y_pos = -1, datacount = 0;
+static short stable_x_pos = -1, stable_y_pos = -1;
+
+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;
+    
+    system_enable_irq(IRQ_SADC);
+    
+    REG_SADC_SAMETIME = 350;
+    REG_SADC_WAITTIME = 100; /* per 10 HZ */
+    REG_SADC_STATE &= (~REG_SADC_STATE);
+    REG_SADC_CTRL &= (~(SADC_CTRL_PENDM | SADC_CTRL_PENUM | SADC_CTRL_TSRDYM));
+    REG_SADC_ENA = (SADC_ENA_TSEN | REG_SADC_ENA); //| SADC_ENA_PBATEN | SADC_ENA_SADCINEN);
+    
+    __gpio_port_as_input(3, 29);
+    __gpio_port_as_input(3, 27);
+    __gpio_port_as_input(3, 16);
+    __gpio_port_as_input(3, 1);
+    __gpio_port_as_input(3, 0);
+}
+
+//static unsigned short touchdivider[2] = {14.5833*1000, 9*1000};
+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;
+    //x /= touchdivider[0];
+    //y /= touchdivider[1];
+    
+    y = LCD_HEIGHT - y;
+    
+    return (x << 16) | y;
+}
+
+int button_read_device(int *data)
+{
+    if(button_hold())
+        return 0;
+    
+    unsigned int key = ~(__gpio_get_port(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(pendown_flag)
+    {
+        *data = touch_to_pixels(stable_x_pos, stable_y_pos);
+        ret |= BUTTON_TOUCH;
+    }
+    else
+        *data = 0;
+
+    return ret;
+}
+
+void button_set_touch_available(void)
+{
+    return;
+}
+
+/* Interrupt handler */
+void SADC(void)
+{
+    unsigned char state;
+    unsigned char sadcstate;
+
+    sadcstate = REG_SADC_STATE;
+    state = REG_SADC_STATE & (~REG_SADC_CTRL);
+    REG_SADC_STATE &= sadcstate;
+            
+    if(state & SADC_CTRL_PENDM)
+    {
+        /* Pen down IRQ */
+        REG_SADC_CTRL &= (~(SADC_CTRL_PENUM |  SADC_CTRL_TSRDYM));
+        REG_SADC_CTRL |= (SADC_CTRL_PENDM);// | SADC_CTRL_TSRDYM);
+        pendown_flag = true;
+    }
+    if(state & SADC_CTRL_PENUM)
+    {
+        /* Pen up IRQ */
+        REG_SADC_CTRL &= (~SADC_CTRL_PENDM );
+        REG_SADC_CTRL |= SADC_CTRL_PENUM;
+        pendown_flag = false;
+        x_pos = -1;
+        y_pos = -1;
+        stable_x_pos = -1;
+        stable_y_pos = -1;
+    }
+    if(state & SADC_CTRL_TSRDYM)
+    {
+    	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;
+        
+    	if(!pendown_flag)
+    		return ;
+    	
+         tsz1Data = tsz2Data - tsz1Data;
+    	
+    	if((tsz1Data > 15) || (tsz1Data < -15))
+        {
+    		if(x_pos == -1)
+    			x_pos = xData;
+    		else
+    			x_pos = (x_pos + xData) / 2;
+    		
+    		if(y_pos == -1)
+    			y_pos = yData;
+    		else
+    			y_pos = (y_pos + yData) / 2;
+        }
+        
+        datacount++;
+    	
+    	if(datacount > TS_AD_COUNT - 1)
+    	{
+    		if(x_pos != -1)
+    		{
+                stable_x_pos = x_pos;
+                stable_y_pos = y_pos;
+    			x_pos = -1;
+    			y_pos = -1;
+    		}
+    		
+    		datacount = 0;
+    	}
+    }
+    if(state & SADC_CTRL_PBATRDYM)
+    {
+        /* Battery AD IRQ */
+    }
+    if(state & SADC_CTRL_SRDYM)
+    {
+        /* SADC AD IRQ */
+    }
+}