Michael Sevakis
b15a523870
e200v1/c200v1: Implement limited samplerate switching. Rates 24kHz and below are being a bear as far as minor crackling at higher amplitude-- leave them out for the time being since no solution is currently evident. 48, 44, 32 (rec rates 24, 22, 16) seem perfectly fine. I'm betting c200 is ok to include because it uses the same setup as e200.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27139 a1c6a512-1295-4272-9138-f99709370657
2010-06-26 10:07:17 +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.
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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
18c7e0eba4
Trim down peak calculation a bit.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25978 a1c6a512-1295-4272-9138-f99709370657
2010-05-13 04:12:23 +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.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25970 a1c6a512-1295-4272-9138-f99709370657
2010-05-12 14:05:36 +00:00
Rafaël Carré
f2f34881ec
Remove pcm_mute() which has been unused since r19308
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Remove audiohw_mute from header as well, and make this function static
to each driver (commented out when it was unused)
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25733 a1c6a512-1295-4272-9138-f99709370657
2010-04-27 00:05:02 +00:00
Frank Gevaerts
43264a946f
New plugin: FFT, A frequency analyzer plugin
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There is some more work needed:
- Keymaps are definitely not perfect, touchscreen targets are disabled due to no keymap
- There is no manual yet
Author: Delyan Kratunov
Flyspray: FS#10065
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24587 a1c6a512-1295-4272-9138-f99709370657
2010-02-10 19:44:11 +00:00
Jeffrey Goode
faa47bf1b7
Code cleanup in dsp.c and misc.c, some comments
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23314 a1c6a512-1295-4272-9138-f99709370657
2009-10-22 00:59:42 +00:00
Michael Sevakis
94537f954e
Gigabeat S: Implement an SDMA API and use it in the PCM driver. Some other miscellaneous adjustments to recording and PCM buffer to accomodate use of physical addresses and cache coherency.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19949 a1c6a512-1295-4272-9138-f99709370657
2009-02-08 22:32:41 +00:00
Michael Sevakis
26bf32c8aa
Check that PCM is playing/recording *after* getting the current position from the hardware layer.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19435 a1c6a512-1295-4272-9138-f99709370657
2008-12-14 11:42:47 +00:00
Michael Sevakis
93572e2a9e
Keyclick fixup take two. It is only 88 samples (2msec) long so keep a small static buffer around for beeps less than or equal to keyclick duration. This way it operates no matter the buffer state and still won't interfere with alternate PCM operations like recording or plugin playback.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19415 a1c6a512-1295-4272-9138-f99709370657
2008-12-13 06:01:08 +00:00
Michael Sevakis
b6e78acc5e
Get rid of some pcm_apply_settings cruft at the low level I somehow missed. Move the ones in pcm.c around to better spots. Remove a variable from pcm-pnx0101.c that should no longer be there.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19402 a1c6a512-1295-4272-9138-f99709370657
2008-12-12 12:46:57 +00:00
Michael Sevakis
e69d567d9e
Bring consistency to pcm implementation and samplerate handling. Less low-level duplication. A small test_sampr fix so it works on coldfire again.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19400 a1c6a512-1295-4272-9138-f99709370657
2008-12-12 11:01:07 +00:00
Rob Purchase
4d97165bf6
Fix a slightly misleading logf
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18026 a1c6a512-1295-4272-9138-f99709370657
2008-07-13 17:34:58 +00:00
Daniel Stenberg
2acc0ac542
Updated our source code header to explicitly mention that we are GPL v2 or
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later. We still need to hunt down snippets used that are not. 1324 modified
files...
http://www.rockbox.org/mail/archive/rockbox-dev-archive-2008-06/0060.shtml
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17847 a1c6a512-1295-4272-9138-f99709370657
2008-06-28 18:10:04 +00:00
Michael Sevakis
05099149f1
Enable nocache sections using the linker. PP5022/4 must use SW_CORELOCK now with shared variables in DRAM (it seems swp(b) is at least partially broken on all PP or I'm doing something very wrong here :\). For core-shared data use SHAREDBSS/DATA_ATTR. NOCACHEBSS/DATA_ATTR is available whether or not single core is forced for static peripheral-DMA buffer allocation without use of the UNCACHED_ADDR macro in code and is likely useful on a non-PP target with a data cache (although not actually enabled in config.h and the .lds's in this commit).
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16981 a1c6a512-1295-4272-9138-f99709370657
2008-04-06 04:34:57 +00:00
Michael Sevakis
0553385bd2
Still on the post-big-commit policing. Correct a function call order. Comment a couple things.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15031 a1c6a512-1295-4272-9138-f99709370657
2007-10-07 23:19:09 +00:00
Michael Sevakis
6077e5b7c8
Unify PCM interface just above the hardware driver level for all targets including the sims. Perform lockout of audio callback when changing states. Weird new playback or recording trouble? Check before and after this revision first though things seem quite sound.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15006 a1c6a512-1295-4272-9138-f99709370657
2007-10-06 22:27:27 +00:00