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18 commits

Author SHA1 Message Date
Michael Sevakis
0a7d941fb9 i.MX31: Remove long udelay from DVFS interrupt handler 
Split the ISR into two parts and alllow quick return from first half.

Introduces a uevent() API to have a callback happen in a specified
number of microseconds. Right now only one event is supported.

Change-Id: Ib1666165be2f6082e5275d64961f083cab104f9f
 2013-05-11 21:09:01 -04:00
Michael Sevakis
5c36e2f21c Gigabeat S: Fix the recording locking upon using it a second time. 
Apparently I got the "just-in-case" RXFIFO purge in there before the
RXFIFO was enabled, causing severe hardware spasms.

Change-Id: I2ea4b6d28e06372b61cb3f21ab2fce71dd408213
 2012-05-23 10:21:22 -04:00
Michael Sevakis
286a4c5caa Revise the PCM callback system after adding multichannel audio. 
Additional status callback is added to pcm_play/rec_data instead of
using a special function to set it. Status includes DMA error
reporting to the status callback. Playback and recording callback
become more alike except playback uses "const void **addr" (because
the data should not be altered) and recording  uses "void **addr".
"const" is put in place throughout where appropriate.

Most changes are fairly trivial. One that should be checked in
particular because it isn't so much is telechips, if anyone cares to
bother. PP5002 is not so trivial either but that tested as working.

Change-Id: I4928d69b3b3be7fb93e259f81635232df9bd1df2
Reviewed-on: http://gerrit.rockbox.org/166
Reviewed-by: Michael Sevakis <jethead71@rockbox.org>
Tested-by: Michael Sevakis <jethead71@rockbox.org>
 2012-03-03 07:23:38 +01:00
Michael Sevakis
6a67707b5e Commit to certain names for cache coherency APIs and discard the aliases. 
Wouldn't surprise me a bit to get some non-green.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31339 a1c6a512-1295-4272-9138-f99709370657
 2011-12-17 07:27:24 +00:00
Michael Sevakis
859cd4b627 Expunge a commented #include that found its way in in r30771. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30772 a1c6a512-1295-4272-9138-f99709370657
 2011-10-17 15:48:41 +00:00
Michael Sevakis
feddfdb2d9 Gigabeat S/i.MX31/wm8978: Clean up clocking information in the general wmcodec/pcm drivers and move it to the target's wmcodec/i2s files. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30771 a1c6a512-1295-4272-9138-f99709370657
 2011-10-17 15:37:14 +00:00
Michael Sevakis
4db3e89652 Shuffle some functions around so that interfacing with playback.c in particular isn't required. Though playback does finish the audio init, pcm doesn't care who does it. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30403 a1c6a512-1295-4272-9138-f99709370657
 2011-09-01 12:15:43 +00:00
Michael Sevakis
a2b6703a36 Commit FS#12150 - Fully-functional audio mixer - and finally whip old limitations about playback of voice and other sounds when paused. Channels are independent in state and amplitude. Fade on stop/pause is handled by the channel's volume control rather than global volume which means it now works from anywhere. Opens up the possibility of plugin sounds during music playback by merely adding an additional channel enum. If any PCM drivers were not properly modified, see one of the last comments in the task for a description of the simple change that is expected. Some params are tunable in firmware/export/pcm-mixer.h as well. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30097 a1c6a512-1295-4272-9138-f99709370657
 2011-06-29 06:37:04 +00:00
Michael Sevakis
9d97ee1b54 Gigabeat S/i.MX31: Take care of an interrupt priority inversion that can happen during PCM callback lockout when DVFS switches frequecies during the lockout, preventing a thread from unlocking the callback until DVFS finishes, causing an SSI FIFO underrun. Hadn't thought of an acceptable way to deal with it before. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28996 a1c6a512-1295-4272-9138-f99709370657
 2011-01-07 20:40:36 +00:00
Michael Sevakis
4048cf27a2 Gigeabeat S: Reset DMA size info when stopping audio playback and recording transfers so that size remaing/peak buffer calls return 0/NULL when stopped. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28941 a1c6a512-1295-4272-9138-f99709370657
 2011-01-01 22:35:00 +00:00
Michael Sevakis
e286b0bbc0 Remove atomic register bit manipulation functions from i.MX and s3c target code and introduce generic functions for ARM (bitmod32, bitset32, and bitclr32). Multiprocessor support is possible but just not implemented at the moment, only interrupt lockout. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27188 a1c6a512-1295-4272-9138-f99709370657
 2010-06-30 02:02:46 +00:00
Michael Sevakis
c2851389b9 Gigabeat S: Use statically initialized channel descriptors. Also, there's no need for them to be in non-cached memory since they're only used on the AP side. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27103 a1c6a512-1295-4272-9138-f99709370657
 2010-06-24 08:40:05 +00:00
Michael Sevakis
6b6123444e Gigabeat S PCM: Sync some comments to changes. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26341 a1c6a512-1295-4272-9138-f99709370657
 2010-05-27 23:22:55 +00:00
Michael Sevakis
25ebd9832d Gigabeat S PCM: There's no reason to touch any hardware registers in order to lock out PCM callbacks. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26340 a1c6a512-1295-4272-9138-f99709370657
 2010-05-27 23:14:39 +00:00
Michael Sevakis
d56999890f Make PCM->driver interface about as simple as it will get. Registered callback, zero data, alignment and stops are handled entirely inside pcm.c; driver merely calls fixed pcm.c callback. Remove pcm_record_more and do it just like playback; the original reason behind it isn't very practical in general. Everything checks out on supported targets. There wer some compat changes I can't check out on many unsupoorted but if there's a problem it will be a minor oops. Plugins become incompatible due to recording tweak-- full update. Sorted API. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26253 a1c6a512-1295-4272-9138-f99709370657
 2010-05-24 16:42:32 +00:00
Michael Sevakis
4d04132c76 PCM bottom layer simplification. pcm_rec_peak_addr variable no longer has to be handled there. Driver can just return current pointer for recording peaks. A new define, HAVE_PCM_REC_DMA_ADDRESS, specifies that physical addresses are being used for recording and translation is needed before starting a new block. The drivers need not worry about aligning start and size nor should care if either will be zero. All this will be checked in the logical layer first. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25970 a1c6a512-1295-4272-9138-f99709370657
 2010-05-12 14:05:36 +00:00
Michael Sevakis
a420561bf8 Gigabeat S: Reclaim about 800K of memory that was laying unused. Get rid of DEVBSS_ATTR for this target and implement as NOCACHEBSS_ATTR. Plugin and codec buffers move so all that is now incompatible (do full update). No version increase for plugins/codecs because the loader will reject them. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25895 a1c6a512-1295-4272-9138-f99709370657
 2010-05-08 07:45:34 +00:00
Michael Sevakis
7abf2b53a4 Gigabeat S/i.MX31: Sort files in the /target tree into things that are SoC-generic (into /imx31) and player-specific (into /gigabeat-s, based upon current appearances). Move i2s clock init into the appropriate file. Housekeeping only-- no functional changes. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25547 a1c6a512-1295-4272-9138-f99709370657
 2010-04-09 01:21:53 +00:00
Renamed from firmware/target/arm/imx31/gigabeat-s/pcm-imx31.c (Browse further)