path: root/firmware/pcm_mixer.c
diff options
authorThomas Martitz <>2011-12-24 11:56:46 +0000
committerThomas Martitz <>2011-12-24 11:56:46 +0000
commit249bba03f1051f4984538f66b9e7d36674c61e5c (patch)
treeb9a0d78e05269ed2043521ab0dfdad83aeaf2aff /firmware/pcm_mixer.c
parent567e0ad93ef3048f2266932b10dcdb309b1a77c9 (diff)
Initial commit of the Samsung YP-R0 port.
This port is a hybrid native/RaaA port. It runs on a embedded linux system, but is the only application. It therefore can implement lots of stuff that native targets also implement, while leveraging the underlying linux kernel. The port is quite advanced. User interface, audio playback, plugins work mostly fine. Missing is e.g. power mangement and USB (see SamsungYPR0 wiki page). Included in utils/ypr0tools are scripts and programs required to generate a patched firmware. The patched firmware has the rootfs modified to load Rockbox. It includes a early/safe USB mode. This port needs a new toolchain, one that includes glibc headers and libraries. can generate it, but e.g. codesourcey and distro packages may also work. Most of the initial effort is done by Lorenzo Miori and others (on ABI), including reverse engineering and patching of the original firmware, initial drivers, and more. Big thanks to you. Flyspray: FS#12348 Author: Lorenzo Miori, myself Merry christmas to ypr0 owners! :) git-svn-id: svn:// a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/pcm_mixer.c')
1 files changed, 5 insertions, 0 deletions
diff --git a/firmware/pcm_mixer.c b/firmware/pcm_mixer.c
index 25c41c2586..3194f76e04 100644
--- a/firmware/pcm_mixer.c
+++ b/firmware/pcm_mixer.c
@@ -70,6 +70,11 @@ static struct mixer_channel * active_channels[PCM_MIXER_NUM_CHANNELS+1] IBSS_ATT
static unsigned int idle_counter = 0;
+/* Cheapo buffer align macro to align to the 16-16 PCM size */
+#define ALIGN_CHANNEL(start, size) \
+ ({ start = (void *)(((uintptr_t)start + 3) & ~3); \
+ size &= ~3; })
/* Include any implemented CPU-optimized mixdown routines */