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DataFlash: change to new style Semaphore library

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This commit is contained in:
Pat Hickey 2013-01-03 10:34:25 -08:00
parent f178d1bd02
commit 390e96311e
2 changed files with 75 additions and 123 deletions
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110
libraries/DataFlash/DataFlash_APM1.cpp
View File

@ -86,11 +86,17 @@ void DataFlash_APM1::Init(void)
_spi = hal.spi->device(AP_HAL::SPIDevice_Dataflash);
if (_spi == NULL) {
hal.console->println_P(
hal.scheduler->panic(
PSTR("PANIC: DataFlash SPIDeviceDriver not found"));
return;
return; /* never reached */
}
_spi_sem = _spi->get_semaphore();
if (_spi_sem == NULL) {
hal.scheduler->panic(
PSTR("PANIC: DataFlash SPIDeviceDriver semaphore is null"));
return; /* never reached */
}
// get page size: 512 or 528 (by default: 528)
df_PageSize = PageSize();
@ -102,10 +108,8 @@ void DataFlash_APM1::Init(void)
// This function is mainly to test the device
void DataFlash_APM1::ReadManufacturerID()
{
if (_spi_sem) {
bool got = _spi_sem->get(this);
if (!got) return;
}
if (!_spi_sem->take(5))
return;
// activate dataflash command decoder
_spi->cs_assert();
@ -120,9 +124,7 @@ void DataFlash_APM1::ReadManufacturerID()
// release SPI bus for use by other sensors
_spi->cs_release();
if (_spi_sem) {
_spi_sem->release(this);
}
_spi_sem->give();
}
// This function return 1 if Card is inserted on SD slot
@ -161,15 +163,12 @@ uint8_t DataFlash_APM1::ReadStatus()
inline
uint16_t DataFlash_APM1::PageSize()
{
if (_spi_sem) {
bool got = _spi_sem->get(this);
if (!got) return 0;
}
if (!_spi_sem->take(5))
return 0;
return(528-((ReadStatusReg()&0x01) << 4)); // if first bit 1 trhen 512 else 528 bytes
if (_spi_sem) {
_spi_sem->release(this);
}
_spi_sem->give();
}
// Wait until DataFlash is in ready state...
@ -181,10 +180,9 @@ void DataFlash_APM1::WaitReady()
void DataFlash_APM1::PageToBuffer(uint8_t BufferNum, uint16_t PageAdr)
{
if (_spi_sem) {
bool got = _spi_sem->get(this);
if (!got) return;
}
if (!_spi_sem->take(1))
return;
// activate dataflash command decoder
_spi->cs_assert();
@ -206,17 +204,14 @@ void DataFlash_APM1::PageToBuffer(uint8_t BufferNum, uint16_t PageAdr)
_spi->cs_release();
while(!ReadStatus()) ; //monitor the status register, wait until busy-flag is high
if (_spi_sem) {
_spi_sem->release(this);
}
_spi_sem->give();
}
void DataFlash_APM1::BufferToPage (uint8_t BufferNum, uint16_t PageAdr, uint8_t wait)
{
if (_spi_sem) {
bool got = _spi_sem->get(this);
if (!got) return;
}
if (!_spi_sem->take(1))
return;
// activate dataflash command decoder
_spi->cs_assert();
@ -240,18 +235,15 @@ void DataFlash_APM1::BufferToPage (uint8_t BufferNum, uint16_t PageAdr, uint8_t
// Check if we need to wait to write the buffer to memory or we can continue...
if (wait)
while(!ReadStatus()) ; //monitor the status register, wait until busy-flag is high
if (_spi_sem) {
_spi_sem->release(this);
}
_spi_sem->give();
}
void DataFlash_APM1::BufferWrite (uint8_t BufferNum, uint16_t IntPageAdr, uint8_t Data)
{
if (_spi_sem) {
bool got = _spi_sem->get(this);
if (!got) return;
}
if (!_spi_sem->take(1))
return;
// activate dataflash command decoder
_spi->cs_assert();
@ -267,19 +259,16 @@ void DataFlash_APM1::BufferWrite (uint8_t BufferNum, uint16_t IntPageAdr, uint8_
// release SPI bus for use by other sensors
_spi->cs_release();
if (_spi_sem) {
_spi_sem->release(this);
}
_spi_sem->give();
}
uint8_t DataFlash_APM1::BufferRead (uint8_t BufferNum, uint16_t IntPageAdr)
{
uint8_t tmp;
if (_spi_sem) {
bool got = _spi_sem->get(this);
if (!got) return 0;
}
if (!_spi_sem->take(1))
return 0;
// activate dataflash command decoder
_spi->cs_assert();
@ -297,19 +286,16 @@ uint8_t DataFlash_APM1::BufferRead (uint8_t BufferNum, uint16_t IntPageAdr)
// release SPI bus for use by other sensors
_spi->cs_release();
if (_spi_sem) {
_spi_sem->release(this);
}
_spi_sem->give();
return (tmp);
}
// *** END OF INTERNAL FUNCTIONS ***
void DataFlash_APM1::PageErase (uint16_t PageAdr)
{
if (_spi_sem) {
bool got = _spi_sem->get(this);
if (!got) return;
}
if (!_spi_sem->take(1))
return;
// activate dataflash command decoder
_spi->cs_assert();
@ -329,18 +315,15 @@ void DataFlash_APM1::PageErase (uint16_t PageAdr)
//initiate flash page erase
_spi->cs_release();
_spi_sem->give();
while(!ReadStatus()) ;
if (_spi_sem) {
_spi_sem->release(this);
}
}
void DataFlash_APM1::BlockErase (uint16_t BlockAdr)
{
if (_spi_sem) {
bool got = _spi_sem->get(this);
if (!got) return;
}
if (!_spi_sem->take(1))
return;
// activate dataflash command decoder
_spi->cs_assert();
@ -370,19 +353,14 @@ void DataFlash_APM1::BlockErase (uint16_t BlockAdr)
//initiate flash page erase
_spi->cs_release();
while(!ReadStatus()) ;
if (_spi_sem) {
_spi_sem->release(this);
}
_spi_sem->give();
}
void DataFlash_APM1::ChipErase()
{
//serialDebug("Chip Erase\n");
if (_spi_sem) {
bool got = _spi_sem->get(this);
if (!got) return;
}
if (!_spi_sem->take(5))
return;
// activate dataflash command decoder
_spi->cs_assert();
@ -400,8 +378,6 @@ void DataFlash_APM1::ChipErase()
hal.scheduler->delay(6);
}
if (_spi_sem) {
_spi_sem->release(this);
}
_spi_sem->give();
}

88
libraries/DataFlash/DataFlash_APM2.cpp
View File

@ -87,24 +87,26 @@ void DataFlash_APM2::Init(void)
_spi = hal.spi->device(AP_HAL::SPIDevice_Dataflash);
if (_spi == NULL) {
hal.console->println_P(
hal.scheduler->panic(
PSTR("PANIC: DataFlash SPIDeviceDriver not found"));
return;
}
_spi_sem = _spi->get_semaphore();
if (_spi_sem) {
bool got = _spi_sem->get(this);
if (!got) return;
if (_spi_sem == NULL) {
hal.scheduler->panic(
PSTR("PANIC: DataFlash SPIDeviceDriver semaphore is null"));
return; /* never reached */
}
if (!_spi_sem->take(5))
return;
// get page size: 512 or 528 (by default: 528)
df_PageSize=PageSize();
ReadManufacturerID();
_spi_sem->give();
if (_spi_sem) {
_spi_sem->release(this);
}
// see page 22 of the spec for the density code
uint8_t density_code = (df_device >> 8) & 0x1F;
@ -186,10 +188,9 @@ void DataFlash_APM2::WaitReady()
void DataFlash_APM2::PageToBuffer(uint8_t BufferNum, uint16_t PageAdr)
{
if (_spi_sem) {
bool got = _spi_sem->get(this);
if (!got) return;
}
if (!_spi_sem->take(1))
return;
// activate dataflash command decoder
_spi->cs_assert();
@ -215,17 +216,13 @@ void DataFlash_APM2::PageToBuffer(uint8_t BufferNum, uint16_t PageAdr)
// release SPI bus for use by other sensors
_spi->cs_release();
if (_spi_sem) {
_spi_sem->release(this);
}
_spi_sem->give();
}
void DataFlash_APM2::BufferToPage (uint8_t BufferNum, uint16_t PageAdr, uint8_t wait)
{
if (_spi_sem) {
bool got = _spi_sem->get(this);
if (!got) return;
}
if (!_spi_sem->take(1))
return;
// activate dataflash command decoder
_spi->cs_assert();
@ -251,17 +248,13 @@ void DataFlash_APM2::BufferToPage (uint8_t BufferNum, uint16_t PageAdr, uint8_t
while(!ReadStatus()) ; //monitor the status register, wait until busy-flag is high
// release SPI bus for use by other sensors
if (_spi_sem) {
_spi_sem->release(this);
}
_spi_sem->give();
}
void DataFlash_APM2::BufferWrite (uint8_t BufferNum, uint16_t IntPageAdr, uint8_t Data)
{
if (_spi_sem) {
bool got = _spi_sem->get(this);
if (!got) return;
}
if (!_spi_sem->take(1))
return;
// activate dataflash command decoder
_spi->cs_assert();
@ -277,17 +270,14 @@ void DataFlash_APM2::BufferWrite (uint8_t BufferNum, uint16_t IntPageAdr, uint8_
// release SPI bus for use by other sensors
_spi->cs_release();
if (_spi_sem) {
_spi_sem->release(this);
}
_spi_sem->give();
}
uint8_t DataFlash_APM2::BufferRead (uint8_t BufferNum, uint16_t IntPageAdr)
{
if (_spi_sem) {
bool got = _spi_sem->get(this);
if (!got) return 0;
}
if (!_spi_sem->take(1))
return 0;
uint8_t tmp;
// activate dataflash command decoder
@ -307,19 +297,15 @@ uint8_t DataFlash_APM2::BufferRead (uint8_t BufferNum, uint16_t IntPageAdr)
// release SPI bus for use by other sensors
_spi->cs_release();
if (_spi_sem) {
_spi_sem->release(this);
}
_spi_sem->give();
return (tmp);
}
// *** END OF INTERNAL FUNCTIONS ***
void DataFlash_APM2::PageErase (uint16_t PageAdr)
{
if (_spi_sem) {
bool got = _spi_sem->get(this);
if (!got) return;
}
if (!_spi_sem->take(1))
return;
// activate dataflash command decoder
_spi->cs_assert();
@ -341,18 +327,14 @@ void DataFlash_APM2::PageErase (uint16_t PageAdr)
while(!ReadStatus()) ;
// release SPI bus for use by other sensors
if (_spi_sem) {
_spi_sem->release(this);
}
_spi_sem->give();
}
// erase a block of 8 pages.
void DataFlash_APM2::BlockErase(uint16_t BlockAdr)
{
if (_spi_sem) {
bool got = _spi_sem->get(this);
if (!got) return;
}
if (!_spi_sem->take(1))
return;
// activate dataflash command decoder
_spi->cs_assert();
@ -374,18 +356,14 @@ void DataFlash_APM2::BlockErase(uint16_t BlockAdr)
while(!ReadStatus()) ;
// release SPI bus for use by other sensors
if (_spi_sem) {
_spi_sem->release(this);
}
_spi_sem->give();
}
void DataFlash_APM2::ChipErase()
{
if (_spi_sem) {
bool got = _spi_sem->get(this);
if (!got) return;
}
if (!_spi_sem->take(1))
return;
//serialDebug("Chip Erase\n");
// activate dataflash command decoder
@ -405,7 +383,5 @@ void DataFlash_APM2::ChipErase()
}
// release SPI bus for use by other sensors
if (_spi_sem) {
_spi_sem->release(this);
}
_spi_sem->give();
}