FS#4770 - Add USB charging for the H300 series

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12169 a1c6a512-1295-4272-9138-f99709370657

apps/debug_menu.c

@@ -78,6 +78,9 @@
 #include "spdif.h"
 #endif
 #endif
+#ifdef IRIVER_H300_SERIES
+#include "pcf50606.h"   /* for pcf50606_read */
+#endif
 
 #ifdef IAUDIO_X5
 #include "lcd-remote-target.h"
@@ -1059,6 +1062,16 @@ bool dbg_ports(void)
         lcd_puts(0, line++, buf);
         snprintf(buf, sizeof(buf), "GPIO1_ENABLE:   %08x", gpio1_enable);
         lcd_puts(0, line++, buf);
+#if defined(IRIVER_H300_SERIES)
+        snprintf(buf, sizeof(buf), "GPOOD0:         %08x", (unsigned int)pcf50606_read(0x37));
+        lcd_puts(0, line++, buf);
+        snprintf(buf, sizeof(buf), "GPOOD1:         %08x", (unsigned int)pcf50606_read(0x38));
+        lcd_puts(0, line++, buf);
+        snprintf(buf, sizeof(buf), "GPOOD2:         %08x", (unsigned int)pcf50606_read(0x39));
+        lcd_puts(0, line++, buf);
+        snprintf(buf, sizeof(buf), "GPOOD3:         %08x", (unsigned int)pcf50606_read(0x3A));
+        lcd_puts(0, line++, buf);
+#endif
 
         adc_buttons = adc_read(ADC_BUTTONS);
         adc_remote  = adc_read(ADC_REMOTE);
@@ -1422,6 +1435,14 @@ static bool view_battery(void)
                 snprintf(buf, 30, "long delta: %d", long_delta);
                 lcd_puts(0, 6, buf);
                 lcd_puts(0, 7, power_message);
+                snprintf(buf, 30, "USB Inserted: %s",
+                         usb_inserted() ? "yes" : "no");
+                lcd_puts(0, 8, buf);
+#if defined IRIVER_H300_SERIES
+                snprintf(buf, 30, "USB Charging Enabled: %s",
+                         usb_charging_enabled() ? "yes" : "no");
+                lcd_puts(0, 9, buf);
+#endif
 #else /* CONFIG_CHARGING != CHARGING_CONTROL */
 #if defined IPOD_NANO || defined IPOD_VIDEO
                 int usb_pwr  = (GPIOL_INPUT_VAL & 0x10)?true:false;

apps/gui/statusbar.c

@@ -143,7 +143,7 @@ void gui_statusbar_draw(struct gui_statusbar * bar, bool force_redraw)
 
     bar->info.battlevel = battery_level();
 #ifdef HAVE_USB_POWER
-    bar->info.usb_power = usb_powered();
+    bar->info.usb_inserted = usb_inserted();
 #endif
 #ifdef CONFIG_CHARGING
     bar->info.inserted = (charger_input_state == CHARGER);
@@ -238,7 +238,7 @@ void gui_statusbar_draw(struct gui_statusbar * bar, bool force_redraw)
             gui_statusbar_icon_battery(display, bar->info.battlevel, 
                                        bar->info.batt_charge_step);
 #ifdef HAVE_USB_POWER
-        if (bar->info.usb_power)
+        if (bar->info.usb_inserted)
             display->mono_bitmap(bitmap_icons_7x8[Icon_USBPlug],
                                  STATUSBAR_PLUG_X_POS,
                                  STATUSBAR_Y_POS, STATUSBAR_PLUG_WIDTH,

apps/gui/statusbar.h

@@ -44,7 +44,7 @@ struct status_info {
     bool inserted;
 #endif
 #ifdef HAVE_USB_POWER
-    bool usb_power;
+    bool usb_inserted;
 #endif
     bool battery_state;
     bool shuffle;

apps/lang/deutsch.lang

@@ -3569,6 +3569,20 @@
     *: "Batterieanzeige"
   </voice>
 </phrase>
+<phrase>
+  id: LANG_USB_CHARGING
+  desc: in Battery menu
+  user:
+  <source>
+    *: "Charge During USB Connection"
+  </source>
+  <dest>
+    *: "Laden bei USB-Verbindung"
+  </dest>
+  <voice>
+    *: "Laden bei U S B Verbindung"
+  </voice>
+</phrase>
 <phrase>
   id: LANG_DISPLAY_GRAPHIC
   desc: Label for type of icon display

apps/lang/english.lang

@@ -3610,6 +3610,20 @@
     *: "Battery Display"
   </voice>
 </phrase>
+<phrase>
+  id: LANG_USB_CHARGING
+  desc: in Battery menu
+  user:
+  <source>
+    *: "Charge During USB Connection"
+  </source>
+  <dest>
+    *: "Charge During USB Connection"
+  </dest>
+  <voice>
+    *: "Charge During U S B Connection"
+  </voice>
+</phrase>
 <phrase>
   id: LANG_DISPLAY_GRAPHIC
   desc: Label for type of icon display

apps/settings.h

@@ -611,6 +611,12 @@ struct user_settings
     unsigned char kbd_file[MAX_FILENAME+1]; /* last keyboard */
 #endif
 
+#ifdef HAVE_USB_POWER
+#ifdef CONFIG_CHARGING
+    bool usb_charging;
+#endif
+#endif
+
 #ifdef HAVE_WM8758
     bool eq_hw_enabled;            /* Enable hardware equalizer */
     

apps/settings_list.c

@@ -690,7 +690,11 @@ const struct settings_list settings[] = {
 #ifdef HAVE_LCD_BITMAP
     FILENAME_SETTING(0,kbd_file,"kbd","",ROCKBOX_DIR "/",".kbd",MAX_FILENAME+1),
 #endif
-
+#ifdef HAVE_USB_POWER
+#ifdef CONFIG_CHARGING
+    OFFON_SETTING(0,usb_charging,LANG_USB_CHARGING,false,"usb charging",NULL),
+#endif
+#endif
 };
 
 const int nb_settings = sizeof(settings)/sizeof(*settings);

apps/settings_menu.c

@@ -405,6 +405,12 @@ static bool clear_main_backdrop(void)
 }
 #endif
 
+#ifdef HAVE_USB_POWER
+#ifdef CONFIG_CHARGING
+#include "usb.h"
+#endif
+#endif
+
 #ifdef HAVE_LCD_COLOR
 /**
  * Menu for fore/back colors
@@ -444,6 +450,22 @@ static bool reset_color(void)
 }
 #endif
 
+#ifdef HAVE_USB_POWER
+#ifdef CONFIG_CHARGING
+/**
+ * Menu to switch the USB charging on or off
+ */
+static bool usb_charging(void)
+{
+    bool rc = set_bool(str(LANG_USB_CHARGING),
+                       &global_settings.usb_charging);
+    /* if (usb_charging_enabled() != global_settings.usb_charging) */
+    usb_charging_enable(global_settings.usb_charging);
+    return rc;
+}
+#endif
+#endif
+
 /**
  * Menu to configure the battery display on status bar
  */
@@ -2083,6 +2105,11 @@ static bool battery_settings_menu(void)
 #if BATTERY_TYPES_COUNT > 1
         { ID2P(LANG_BATTERY_TYPE),     battery_type },
 #endif
+#ifdef HAVE_USB_POWER
+#ifdef CONFIG_CHARGING
+        { ID2P(LANG_USB_CHARGING),    usb_charging },
+#endif
+#endif
 #else
         { "Dummy", NULL }, /* to have an entry at all, in the simulator */
 #endif

firmware/export/pcf50606.h

@@ -24,6 +24,8 @@ int pcf50606_write_multiple(int address, const unsigned char* buf, int count);
 int pcf50606_write(int address, unsigned char val);
 int pcf50606_read_multiple(int address, unsigned char* buf, int count);
 int pcf50606_read(int address);
+void pcf50606_set_usb_charging(bool on);
+bool pcf50606_usb_charging_enabled(void);
 
 /* internal low level calls used by the eeprom driver for h300 */
 void pcf50606_i2c_init(void);
@@ -32,8 +34,11 @@ void pcf50606_i2c_start(void);
 void pcf50606_i2c_stop(void);
 void pcf50606_i2c_ack(bool ack);
 bool pcf50606_i2c_getack(void);
+#if defined(IRIVER_H300_SERIES)
+/* USB charging support */
 void pcf50606_i2c_outb(unsigned char byte);
 unsigned char pcf50606_i2c_inb(bool ack);
+#endif
 
 #if defined(IAUDIO_X5) && !defined(SIMULATOR)
 void pcf50606_reset_timeout(void);

firmware/export/usb.h

@@ -31,6 +31,10 @@ bool usb_inserted(void); /* return the official value, what's been reported to t
 bool usb_detect(void); /* return the raw hardware value */
 #ifdef HAVE_USB_POWER
 bool usb_powered(void);
+#ifdef CONFIG_CHARGING
+bool usb_charging_enable(bool on);
+bool usb_charging_enabled(void);
+#endif
 #endif
 
 #endif

firmware/powermgmt.c

@@ -759,8 +759,11 @@ static void power_thread_sleep(int ticks)
          * transition to the appropriate steady state charger on/off state.
          */
         if(charger_inserted()
-#ifdef HAVE_USB_POWER
+#ifdef HAVE_USB_POWER /* USB powered or USB inserted both provide power */
                 || usb_powered()
+#ifdef CONFIG_CHARGING
+                || (usb_inserted() && usb_charging_enabled())
+#endif
 #endif
                 ) {
             switch(charger_input_state) {

firmware/target/coldfire/iriver/h300/pcf50606-h300.c

@@ -21,6 +21,9 @@
 #include "kernel.h"
 #include "pcf50606.h"
 #include "button-target.h"
+#include "logf.h"
+
+static bool usb_ch_enabled = false;
 
 /* These voltages were determined by measuring the output of the PCF50606
    on a running H300, and verified by disassembling the original firmware */
@@ -70,6 +73,27 @@ static inline void enable_pmu_interrupts(void)
     or_l(0x03000000, &INTPRI5); /* INT38 - Priority 3 */
 }
 
+/* enables/disables USB charging
+ * ATTENTION: make sure to set the irq level
+ *   to highest before calling this function! */
+void pcf50606_set_usb_charging(bool on)
+{
+    if (on)
+        pcf50606_write(0x39, 0x00); /* Set GPOOD2 to High-Z for USB Charge Enable */
+    else
+        pcf50606_write(0x39, 0x07); /* Set GPOOD2 to pulled down to disable USB charging */
+
+    usb_ch_enabled = on;
+
+    logf("pcf50606_set_usb_charging(%s)\n", on ? "on" : "off" );
+}
+
+bool pcf50606_usb_charging_enabled(void)
+{
+    /* TODO: read the state of the GPOOD2 register... */
+    return usb_ch_enabled;
+}
+
 void pcf50606_init(void)
 {
     pcf50606_i2c_init();
@@ -82,6 +106,8 @@ void pcf50606_init(void)
     pcf50606_write(0x09, 0x05); /* USB and ON key debounce: 14ms */
     pcf50606_write(0x29, 0x1C); /* Disable the unused MBC module */
 
+    pcf50606_set_usb_charging(false); /* Disable USB charging atm. */
+
     pcf50606_write(0x35, 0x13); /* Backlight PWM = 512Hz 50/50 */
     pcf50606_write(0x3a, 0x3b); /* PWM output on GPOOD1 */
 

firmware/usb.c

@@ -44,6 +44,10 @@
 #ifdef TARGET_TREE
 #include "usb-target.h"
 #endif
+#ifdef IRIVER_H300_SERIES
+#include "pcf50606.h"        /* for pcf50606_usb_charging_... */
+#endif
+#include "logf.h"
 
 extern void dbg_ports(void); /* NASTY! defined in apps/ */
 
@@ -487,6 +491,40 @@ bool usb_powered(void)
 {
     return usb_state == USB_POWERED;
 }
+
+#ifdef CONFIG_CHARGING
+bool usb_charging_enable(bool on)
+{
+    bool rc = false;
+#ifdef IRIVER_H300_SERIES
+    int irqlevel;
+    logf("usb_charging_enable(%s)\n", on ? "on" : "off" );
+    irqlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
+    pcf50606_set_usb_charging(on);
+    rc = on;
+    (void)set_irq_level(irqlevel);
+#else
+    /* TODO: implement it for other targets... */
+    (void)on;
+#endif
+    return rc;
+}
+
+bool usb_charging_enabled(void)
+{
+    bool rc = false;
+#ifdef IRIVER_H300_SERIES
+    /* TODO: read the state of the GPOOD2 register...
+     * (this also means to set the irq level here) */
+    rc = pcf50606_usb_charging_enabled();
+#else
+    /* TODO: implement it for other targets... */
+#endif
+
+    logf("usb_charging_enabled: %s\n", rc ? "true" : "false" );
+    return rc;
+}
+#endif
 #endif
 
 #else