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my9221: add direction for setBarLevel

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Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Brendan Le Foll
2014-07-14 13:59:19 +01:00
parent d2e2682f0e
commit 8cfb3d3dab
2 changed files with 15 additions and 6 deletions
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18
src/my9221/my9221.cxx
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@@ -73,17 +73,25 @@ MY9221::~MY9221() {
}
mraa_result_t
MY9221::setBarLevel (uint8_t level) {
MY9221::setBarLevel (uint8_t level, bool direction) {
if (level > 10) {
return MRAA_ERROR_INVALID_PARAMETER;
}
send16bitBlock (CMDMODE);
for(uint8_t block_idx = 0; block_idx < 12; block_idx++) {
uint32_t state = (block_idx < level) ? BIT_HIGH : BIT_LOW;
send16bitBlock (state);
if (direction) {
level += 3;
for(uint8_t block_idx = 12; block_idx > 0; block_idx--) {
uint32_t state = (block_idx < level) ? BIT_HIGH : BIT_LOW;
send16bitBlock (state);
}
} else {
for(uint8_t block_idx = 0; block_idx < 12; block_idx++) {
uint32_t state = (block_idx < level) ? BIT_HIGH : BIT_LOW;
send16bitBlock (state);
}
}
lockData ();
return lockData ();
}
mraa_result_t