Commit graph

24 commits

Author SHA1 Message Date
Michael Sevakis
36480c259f Fix a race condition in as3525 I2C driver caused by stacked ISRs.
It was possible for interrupts of higher priority than the current IRQ
level to attempt to restart the interface while it was still active on
a transfer. The list modification also wasn't protected within the I2C
ISR itself.

Change-Id: I70635c307a1443bba6801c588cf1efde299db9a4
2015-03-16 03:27:08 -04:00
Rafaël Carré
8552824284 ascodec-target.h: remove
move prototypes to ascodec.h
move code to ascodec*.c

YPR0: use adc-as3514.c instead of duplicating it

TODO: merge as3514.h and ascodec.h ?

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31626 a1c6a512-1295-4272-9138-f99709370657
2012-01-08 01:43:16 +00:00
Rafaël Carré
568c441fd8 usb-target.h: remove
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31498 a1c6a512-1295-4272-9138-f99709370657
2011-12-31 18:44:55 +00:00
Michael Sevakis
2026c9506c Commit the ascodec-as3525.c/ascodec-target.h changes from FS#12452 that keep ascodec_read/write_pmu from keeping interrupts disabled for the full duration of two I2C transfers, which can contribute to I2S PUSH/POP FIFO under/over-flows. 'Tis peppered with a couple interrupt safety mods as well.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31264 a1c6a512-1295-4272-9138-f99709370657
2011-12-15 03:30:03 +00:00
Bertrik Sikken
b1298c2c44 Sansa AMS/AMSv2: analog front-end register CVDD/DCDC3 doesn't exist in AMSv2, so don't modify it
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30579 a1c6a512-1295-4272-9138-f99709370657
2011-09-21 21:48:19 +00:00
Michael Sevakis
12375d1d3a Merge functionality of wakeups and semaphores-- fewer APIs and object types. semaphore_wait takes a timeout now so codecs and plugins have to be made incompatible. Don't make semaphores for targets not using them.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29492 a1c6a512-1295-4272-9138-f99709370657
2011-03-02 08:49:38 +00:00
Michael Sevakis
0f47ffe0e4 AMS SoC's: Some register bit changes need interrupt protection: timer API and CGU_PERI.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27236 a1c6a512-1295-4272-9138-f99709370657
2010-07-02 06:00:00 +00:00
Rafaël Carré
61c90fbf3f as3525: cache first read of enrd0 register
We need it for correct charger detection if we boot with charger plugged
because there is no edge interrupt

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26936 a1c6a512-1295-4272-9138-f99709370657
2010-06-18 19:47:58 +00:00
Rafaël Carré
df34a4767f as3525 ascodec: make internal functions statics and remove some details for ascodec-target.h header
reorder static functions to avoid the need for early prototypes
panic if the INT_AUDIO callback could not read the 3 IRQ_ENRD registers

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26445 a1c6a512-1295-4272-9138-f99709370657
2010-06-01 10:16:10 +00:00
Rafaël Carré
eacc32248e as3525v2: enable AFE (AUDIO Front End) interrupts
We needed to set the XIRQ output pin

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26238 a1c6a512-1295-4272-9138-f99709370657
2010-05-21 17:49:04 +00:00
Rafaël Carré
7dd0297a4d as3525: correctly detect usb status if we boot with USB plugged
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26118 a1c6a512-1295-4272-9138-f99709370657
2010-05-17 21:17:46 +00:00
Rafaël Carré
88c55d7290 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
2010-05-17 20:53:25 +00:00
Tobias Diedrich
48789c5361 Remove vim option line
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25505 a1c6a512-1295-4272-9138-f99709370657
2010-04-07 03:27:23 +00:00
Tobias Diedrich
c4e4ffb541 Limit AUDIO_IRQ handling to AS3525, since it doesn't work on the newer SoC in SANSA_CLIPPLUS yet.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25305 a1c6a512-1295-4272-9138-f99709370657
2010-03-23 11:13:17 +00:00
Tobias Diedrich
47ab95904e Add handler for audio irq.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25299 a1c6a512-1295-4272-9138-f99709370657
2010-03-23 05:02:37 +00:00
Tobias Diedrich
946d3d177e Rewrite ascodec_as3514.c to use interrupts.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25297 a1c6a512-1295-4272-9138-f99709370657
2010-03-23 04:40:38 +00:00
Rafaël Carré
c8f22f5a8f Sansa AMS : don't use the SHAREDBSS_ATTR since we don't have a coprocessor
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21171 a1c6a512-1295-4272-9138-f99709370657
2009-06-02 22:45:02 +00:00
Bertrik Sikken
9067c915ad Use I2C2_DACNT register (number of pending i2c bytes to read/write) to determine if an ascodec i2c transfer is done. This should fix i2c problems with MMU enabled.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21150 a1c6a512-1295-4272-9138-f99709370657
2009-05-31 17:48:19 +00:00
Rafaël Carré
ef9aacb2e0 FS#10245 by Jack Halpin : Adjust Clocking scheme on Sansa AMS
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21088 a1c6a512-1295-4272-9138-f99709370657
2009-05-26 18:44:02 +00:00
Bertrik Sikken
4a4639e157 Update as3525 i2c register description
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21018 a1c6a512-1295-4272-9138-f99709370657
2009-05-21 18:31:50 +00:00
Rafaël Carré
49c25816f0 Sansa AMS i2c : fix 2 problems identified by Jack Halpin & Bertrik Sikken
i2c clock frequency uses pclk as reference, not plla
i2c clock divider is only 10 bits, not 16

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20929 a1c6a512-1295-4272-9138-f99709370657
2009-05-14 09:36:56 +00:00
Bertrik Sikken
b5886beb81 Allow a clock divider larger than 255 for the internal i2c bus to the as3525 ascodec.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20861 a1c6a512-1295-4272-9138-f99709370657
2009-05-06 17:33:56 +00:00
Bertrik Sikken
070ee525ac Patch by Rafaël Carré - Sansa AMS i2c :
* remove peripheral reset (already made in system_init).
  * Move empty i2c_init() from i2c-as3525.c (and remove that file)


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20645 a1c6a512-1295-4272-9138-f99709370657
2009-04-07 17:20:31 +00:00
Bertrik Sikken
a6c62a218a Renamed as3525-codec.c to ascodec-as3525.c to bring it in line with the naming convention of the other driver
files.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19469 a1c6a512-1295-4272-9138-f99709370657
2008-12-17 20:16:20 +00:00
Renamed from firmware/target/arm/as3525/as3525-codec.c (Browse further)