* Onda VX777: add support for its single physical button

* Use real wakeup events in the battery ADC driver
 * Adjust battery charge information a bit


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22458 a1c6a512-1295-4272-9138-f99709370657

firmware/target/mips/ingenic_jz47xx/onda_vx747/button-target.h

@@ -23,7 +23,9 @@
 
 #include "config.h"
 
+#ifndef VX777
 #define HAS_BUTTON_HOLD
+#endif
 
 bool button_hold(void);
 void button_init_device(void);
@@ -57,11 +59,18 @@ void button_set_touch_available(void);
                                          .C=0xA22AA2C,  .D=0x23DC, .E=0x8E3E6, \
                                          .F=0x76CF88AA, .divider=0xFFAD4013}
 
+#ifdef ONDA_VX777
+#define BUTTON_MAIN (BUTTON_POWER    | BUTTON_TOPLEFT    | BUTTON_TOPMIDDLE    | \
+                     BUTTON_TOPRIGHT | BUTTON_MIDLEFT    | BUTTON_CENTER       | \
+                     BUTTON_MIDRIGHT | BUTTON_BOTTOMLEFT | BUTTON_BOTTOMMIDDLE | \
+                     BUTTON_BOTTOMRIGHT)
+#else
 #define BUTTON_MAIN (BUTTON_POWER    | BUTTON_VOL_UP     | BUTTON_VOL_DOWN     | \
                      BUTTON_MENU     | BUTTON_TOPLEFT    | BUTTON_TOPMIDDLE    | \
                      BUTTON_TOPRIGHT | BUTTON_MIDLEFT    | BUTTON_CENTER       | \
                      BUTTON_MIDRIGHT | BUTTON_BOTTOMLEFT | BUTTON_BOTTOMMIDDLE | \
                      BUTTON_BOTTOMRIGHT)
+#endif
 
 /* No remote */
 #define BUTTON_REMOTE   0

firmware/target/mips/ingenic_jz47xx/onda_vx747/sadc-onda_vx747.c

@@ -43,7 +43,7 @@
 #define BTN_MENU     (1 << 20)
 #define BTN_VOL_UP   (1 << 19)
 #elif defined(ONDA_VX777)
-/* TODO */
+#define BTN_OFF      (1 << 29)
 #else
 #error No buttons defined!
 #endif
@@ -68,42 +68,42 @@ static signed int x_pos, y_pos;
 static int datacount = 0;
 static volatile int cur_touch = 0;
 static volatile bool pen_down = false;
-static volatile unsigned short bat_val;
 static struct mutex battery_mtx;
+static struct wakeup battery_wkup;
 
 const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
 {
     /* TODO */
-    1000
+    1600
 };
 
 const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
 {
     /* TODO */
-    900
+    1500
 };
 
 /* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
 const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
 {
     /* TODO */
-    { 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800, 1900, 2000 },
+    { 1400, 1500, 1600, 1700, 1800, 1900, 2000, 2100, 2200, 2300, 2400 },
 };
 
 /* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
 const unsigned short percent_to_volt_charge[11] =
 {
     /* TODO */
-    1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800, 1900, 2000
+    1400, 1500, 1600, 1700, 1800, 1900, 2000, 2100, 2200, 2300, 2400
 };
 
 /* VBAT = (BDATA/4096) * 7.5V */
-#define BATTERY_SCALE_FACTOR 1875
+#define BATTERY_SCALE_FACTOR 7500
 
 /* Returns battery voltage from ADC [millivolts] */
 unsigned int battery_adc_voltage(void)
 {
-    unsigned int dummy, timeout=HZ/4;
+    unsigned int dummy, bat_val;
 
     mutex_lock(&battery_mtx);
 
@@ -111,29 +111,27 @@ unsigned int battery_adc_voltage(void)
     dummy = REG_SADC_BATDAT;
 
     REG_SADC_ENA |= SADC_ENA_PBATEN;
-    bat_val = 0;
 
-    /* primitive wakeup event */
+    wakeup_wait(&battery_wkup, HZ/4);
-    while(bat_val == 0 && timeout--)
+    bat_val = REG_SADC_BATDAT;
-        sleep(0);
 
-    logf("%d %d", bat_val, (bat_val*BATTERY_SCALE_FACTOR)>>10);
+    logf("%d %d", bat_val, (bat_val * BATTERY_SCALE_FACTOR) / 4096);
 
     mutex_unlock(&battery_mtx);
 
-    return (bat_val*BATTERY_SCALE_FACTOR)>>10;
+    return (bat_val * BATTERY_SCALE_FACTOR) / 4096;
 }
 
 void button_init_device(void)
 {
+    __gpio_as_input(32*3 + 29); /* VX777 and VX747(+) */
+
 #ifdef ONDA_VX747
-    __gpio_as_input(32*3 + 29);
     __gpio_as_input(32*3 + 27);
     __gpio_as_input(32*3 + 16);
     __gpio_as_input(32*3 + 1);
     __gpio_as_input(32*3 + 0);
 #elif defined(ONDA_VX747P)
-    __gpio_as_input(32*3 + 29);
     __gpio_as_input(32*3 + 27);
     __gpio_as_input(32*3 + 20);
     __gpio_as_input(32*3 + 19);
@@ -149,7 +147,7 @@ bool button_hold(void)
 #elif defined(ONDA_VX747P)
             (~REG_GPIO_PXPIN(2)) & BTN_HOLD
 #elif defined(ONDA_VX777)
-            false /* TODO */
+            false
 #endif
             ? true : false
            );
@@ -166,17 +164,17 @@ int button_read_device(int *data)
     if(button_hold())
         return 0;
 
-#ifndef ONDA_VX777
     int tmp = (~REG_GPIO_PXPIN(3)) & BTN_MASK;
 
+    if(tmp & BTN_OFF)
+        ret |= BUTTON_POWER;
+#ifndef ONDA_VX777
     if(tmp & BTN_VOL_DOWN)
         ret |= BUTTON_VOL_DOWN;
     if(tmp & BTN_VOL_UP)
         ret |= BUTTON_VOL_UP;
     if(tmp & BTN_MENU)
         ret |= BUTTON_MENU;
-    if(tmp & BTN_OFF)
-        ret |= BUTTON_POWER;
 #endif
 
     if(cur_touch != 0 && pen_down)
@@ -197,11 +195,10 @@ int button_read_device(int *data)
 /* Interrupt handler */
 void SADC(void)
 {
-    unsigned char state;
+    unsigned char state, sadcstate;
-    unsigned char sadcstate;
 
     sadcstate = REG_SADC_STATE;
-    state = REG_SADC_STATE & (~REG_SADC_CTRL);
+    state = sadcstate & (~REG_SADC_CTRL);
     REG_SADC_STATE &= sadcstate;
 
     if(state & SADC_CTRL_PENDM)
@@ -269,8 +266,8 @@ void SADC(void)
 
     if(state & SADC_CTRL_PBATRDYM)
     {
-        bat_val = REG_SADC_BATDAT;
         /* Battery AD IRQ */
+        wakeup_signal(&battery_wkup);
     }
 }
 
@@ -292,6 +289,7 @@ void adc_init(void)
     REG_SADC_ENA = SADC_ENA_TSEN;
 
     mutex_init(&battery_mtx);
+    wakeup_init(&battery_wkup);
 }
 
 void adc_close(void)
@@ -301,4 +299,3 @@ void adc_close(void)
     sleep(20);
     __cpm_stop_sadc();
 }
-