H300: Bootloader USB mode detection on EXTON wakeup

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8326 a1c6a512-1295-4272-9138-f99709370657

bootloader/main.c

@@ -175,7 +175,7 @@ void main(void)
     power_init();
 
     /* Turn off if neither ON button is pressed */
-    if(!(on_button || rc_on_button))
+    if(!(on_button || rc_on_button || usb_detect()))
         power_off();
     
     /* Backlight ON */
@@ -243,8 +243,8 @@ void main(void)
 
     /* Don't start if the Hold button is active on the device you
        are starting with */
-    if((on_button && button_hold()) ||
-       (rc_on_button && remote_button_hold())) {
+    if(!usb_detect() && ((on_button && button_hold()) ||
+       (rc_on_button && remote_button_hold()))) {
         lcd_puts(0, 8, "HOLD switch on, power off...");
         lcd_update();
         sleep(HZ*2);

firmware/drivers/pcf50606.c

@@ -281,6 +281,9 @@ void pcf50606_init(void)
 
     set_voltages();
 
+    pcf50606_write(0x08, 0x60); /* Wake on USB and charger insertion */
+    pcf50606_write(0x09, 0x60); /* USB and ON key debounce: 14ms */
+
     /* Backlight PWM = 512Hz 50/50 */
     /*pcf50606_write(0x35, 0x13);*/
     pcf50606_set_bl_pwm(9);

firmware/usb.c

@@ -394,7 +394,6 @@ bool usb_detect(void)
     current_status = (P5 & 0x10)?true:false;
 #endif
 #ifdef IRIVER_H300
-    /* TODO: add proper code code for H300 USB style */
     current_status = (GPIO1_READ & 0x80)?true:false;
 #endif
 #ifdef USB_IPODSTYLE