mirror of https://github.com/ARMmbed/mbed-os.git
Merge pull request #3093 from BrunoMPires/master
[SDFileSystem] Enable / Disable serial debug.pull/3140/head
commit
8c2f874b40
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@ -147,6 +147,7 @@ SDFileSystem::SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs,
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#define SDCARD_V2HC 3
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int SDFileSystem::initialise_card() {
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_dbg = SD_DBG;
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// Set to SCK for initialisation, and clock card with cs = 1
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_spi.lock();
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_spi.frequency(_init_sck);
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@ -158,7 +159,7 @@ int SDFileSystem::initialise_card() {
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// send CMD0, should return with all zeros except IDLE STATE set (bit 0)
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if (_cmd(0, 0) != R1_IDLE_STATE) {
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debug("No disk, or could not put SD card in to SPI idle state\n");
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debug_if(_dbg, "No disk, or could not put SD card in to SPI idle state\n");
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return SDCARD_FAIL;
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}
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@ -169,7 +170,7 @@ int SDFileSystem::initialise_card() {
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} else if (r == (R1_IDLE_STATE | R1_ILLEGAL_COMMAND)) {
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return initialise_card_v1();
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} else {
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debug("Not in idle state after sending CMD8 (not an SD card?)\n");
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debug_if(_dbg, "Not in idle state after sending CMD8 (not an SD card?)\n");
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return SDCARD_FAIL;
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}
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}
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@ -179,12 +180,12 @@ int SDFileSystem::initialise_card_v1() {
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_cmd(55, 0);
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if (_cmd(41, 0) == 0) {
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cdv = 512;
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debug_if(SD_DBG, "\n\rInit: SEDCARD_V1\n\r");
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debug_if(_dbg, "\n\rInit: SEDCARD_V1\n\r");
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return SDCARD_V1;
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}
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}
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debug("Timeout waiting for v1.x card\n");
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debug_if(_dbg, "Timeout waiting for v1.x card\n");
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return SDCARD_FAIL;
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}
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@ -195,13 +196,13 @@ int SDFileSystem::initialise_card_v2() {
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_cmd(55, 0);
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if (_cmd(41, 0x40000000) == 0) {
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_cmd58();
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debug_if(SD_DBG, "\n\rInit: SDCARD_V2\n\r");
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debug_if(_dbg, "\n\rInit: SDCARD_V2\n\r");
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cdv = 1;
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return SDCARD_V2;
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}
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}
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debug("Timeout waiting for v2.x card\n");
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debug_if(_dbg, "Timeout waiting for v2.x card\n");
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return SDCARD_FAIL;
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}
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@ -209,16 +210,16 @@ int SDFileSystem::disk_initialize() {
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lock();
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_is_initialized = initialise_card();
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if (_is_initialized == 0) {
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debug("Fail to initialize card\n");
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debug_if(_dbg, "Fail to initialize card\n");
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unlock();
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return 1;
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}
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debug_if(SD_DBG, "init card = %d\n", _is_initialized);
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debug_if(_dbg, "init card = %d\n", _is_initialized);
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_sectors = _sd_sectors();
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// Set block length to 512 (CMD16)
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if (_cmd(16, 512) != 0) {
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debug("Set 512-byte block timed out\n");
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debug_if(_dbg, "Set 512-byte block timed out\n");
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unlock();
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return 1;
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}
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@ -291,6 +292,10 @@ uint32_t SDFileSystem::disk_sectors() {
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return sectors;
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}
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void SDFileSystem::debug(bool dbg){
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_dbg = dbg;
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}
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// PRIVATE FUNCTIONS
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int SDFileSystem::_cmd(int cmd, int arg) {
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@ -487,13 +492,13 @@ uint32_t SDFileSystem::_sd_sectors() {
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// CMD9, Response R2 (R1 byte + 16-byte block read)
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if (_cmdx(9, 0) != 0) {
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debug("Didn't get a response from the disk\n");
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debug_if(_dbg, "Didn't get a response from the disk\n");
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return 0;
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}
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uint8_t csd[16];
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if (_read(csd, 16) != 0) {
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debug("Couldn't read csd response from disk\n");
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debug_if(_dbg, "Couldn't read csd response from disk\n");
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return 0;
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}
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@ -516,18 +521,18 @@ uint32_t SDFileSystem::_sd_sectors() {
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blocknr = (c_size + 1) * mult;
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capacity = blocknr * block_len;
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blocks = capacity / 512;
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debug_if(SD_DBG, "\n\rSDCard\n\rc_size: %d \n\rcapacity: %ld \n\rsectors: %lld\n\r", c_size, capacity, blocks);
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debug_if(_dbg, "\n\rSDCard\n\rc_size: %d \n\rcapacity: %ld \n\rsectors: %lld\n\r", c_size, capacity, blocks);
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break;
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case 1:
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cdv = 1;
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hc_c_size = ext_bits(csd, 63, 48);
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blocks = (hc_c_size+1)*1024;
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debug_if(SD_DBG, "\n\rSDHC Card \n\rhc_c_size: %d\n\rcapacity: %lld \n\rsectors: %lld\n\r", hc_c_size, blocks*512, blocks);
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debug_if(_dbg, "\n\rSDHC Card \n\rhc_c_size: %d\n\rcapacity: %lld \n\rsectors: %lld\n\r", hc_c_size, blocks*512, blocks);
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break;
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default:
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debug("CSD struct unsupported\r\n");
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debug_if(_dbg, "CSD struct unsupported\r\n");
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return 0;
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};
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return blocks;
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@ -58,6 +58,7 @@ public:
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virtual int disk_write(const uint8_t* buffer, uint32_t block_number, uint32_t count);
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virtual int disk_sync();
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virtual uint32_t disk_sectors();
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void debug(bool dbg);
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protected:
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@ -84,6 +85,7 @@ protected:
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DigitalOut _cs;
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int cdv;
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int _is_initialized;
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bool _dbg;
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};
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#endif
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