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, 4 insertions, 0 deletions

diff --git a/firmware/export/as3514.h b/firmware/export/as3514.h
index df149c274a..6916e2fb4a 100644
--- a/firmware/export/as3514.h
+++ b/firmware/export/as3514.h
@@ -67,6 +67,10 @@ extern void audiohw_set_lineout_vol(int vol_l, int vol_r);
 
 #define AS3514_PLLMODE    0x1d
 
+#ifdef HAVE_AS3543
+#define AS3543_CHARGER    0x19  /* PMU: sub register 1 (CHGVBUS1) */
+#endif
+
 #define AS3514_SYSTEM     0x20
 #define AS3514_CVDD_DCDC3 0x21
 #define AS3514_CHARGER    0x22