as3514/as3543 fixes

- Enable end of charge monitoring once, it doesn't need to be disabled
- Acknowledge the first (wrong) end of charge interrupt on charger enable
  (this had been broken in r25299)
- Centralize reads to ENRD* registers and cache the results when needed
    - on PP it is not needed because reads are atomic, we only check for
      end of charge when the charging, and for charger presence when
      discharging

as3525v2 (using as3543) specifics
- I got the datasheet today from AMS, thanks to them for being so fast
  and not require me to sign tons of papers!
- USB detection now works on as3525v2 using the as3543. Clip+ won't
  reboot to OF yet, it needs mkamsboot support first (usbstack disabled)
- Charging should work, the CHARGER register is at a different place, it
  is an extended PMU register -> use ascodec_read/write_charger() to
  access it
- real interrupts are not used yet for ENRD, we get thousands of
  interrupts per second, apparently only limited by the i2c clock.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26116 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 0 insertions, 21 deletions

diff --git a/firmware/target/arm/as3525/usb-as3525.c b/firmware/target/arm/as3525/usb-as3525.c
index 74bfc17364..be62752033 100644
--- a/firmware/target/arm/as3525/usb-as3525.c
+++ b/firmware/target/arm/as3525/usb-as3525.c
@@ -29,13 +29,7 @@
 #include "power.h"
 #include "as3525.h"
 
-#if CONFIG_CPU == AS3525
 static int usb_status = USB_EXTRACTED;
-#else
-#if defined(SANSA_CLIPV2)
-#define USB_DETECT_PIN 6
-#endif
-#endif
 
 void usb_enable(bool on)
 {
@@ -51,12 +45,8 @@ void usb_enable(bool on)
 
 void usb_init_device(void)
 {
-#ifdef USB_DETECT_PIN
-    GPIOA_DIR &= ~(1 << USB_DETECT_PIN); /* set as input */
-#endif
 }
 
-#if CONFIG_CPU == AS3525
 void usb_insert_int(void)
 {
     usb_status = USB_INSERTED;
@@ -71,14 +61,3 @@ int usb_detect(void)
 {
     return usb_status;
 }
-#else
-int usb_detect(void)
-{
-#ifdef USB_DETECT_PIN
-    if (GPIOA_PIN( USB_DETECT_PIN ))
-        return USB_INSERTED;
-    else
-#endif
-        return USB_EXTRACTED;
-}
-#endif