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| author | Nick Pelly <npelly@google.com> | 2010-11-03 14:59:20 -0500 |
|---|---|---|
| committer | Nick Pelly <npelly@google.com> | 2010-11-03 15:04:37 -0500 |
| commit | 52ffcd90d9da60151c4343bc25f272da65cf6b98 (patch) | |
| tree | b4f5274648a06e37ddad55f913b144e4569cf725 /Linux_x86 | |
| parent | e1b8bffcf9ff1a5c290c03be5a1d85be0c103223 (diff) | |
| download | external_libnfc-nxp-52ffcd90d9da60151c4343bc25f272da65cf6b98.zip external_libnfc-nxp-52ffcd90d9da60151c4343bc25f272da65cf6b98.tar.gz external_libnfc-nxp-52ffcd90d9da60151c4343bc25f272da65cf6b98.tar.bz2 | |
Increase hardware reset time.
VEN was pulled low for 7ms, as per data sheet, but pn544 not awlays reset.
Increase time.
Change-Id: I7de9e4fc94a0493605f706505962bdfab9d03666
Signed-off-by: Nick Pelly <npelly@google.com>
Diffstat (limited to 'Linux_x86')
| -rw-r--r-- | Linux_x86/phDal4Nfc_i2c.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Linux_x86/phDal4Nfc_i2c.c b/Linux_x86/phDal4Nfc_i2c.c index 5e0b30b..4f18ffc 100644 --- a/Linux_x86/phDal4Nfc_i2c.c +++ b/Linux_x86/phDal4Nfc_i2c.c @@ -22,6 +22,9 @@ * */ +#define LOG_TAG "NFC_i2c" +#include <utils/Log.h> + #include <stdlib.h> #include <unistd.h> #include <fcntl.h> @@ -244,6 +247,16 @@ int phDal4Nfc_i2c_reset(long level) ret = ioctl(gI2cPortContext.nHandle, PN544_SET_PWR, level); + /* HACK to increase reset time + * TODO: move this to kernel + */ + if (level == 0) { + LOGW("sleeping a little longer..."); + usleep(10000); + } else { + usleep(10000); + } + return ret; } |