Add static pinmap support: SDBlockDevice, kvstore, system storage

This is done in order to enable static pin-map for Mbed Cloud Client Example. This should give extra ROM savings, ~1KB.

Author: mprse

components/storage/blockdevice/COMPONENT_SD/SDBlockDevice.cpp

@@ -271,6 +271,28 @@ SDBlockDevice::SDBlockDevice(PinName mosi, PinName miso, PinName sclk, PinName c
     _erase_size = BLOCK_SIZE_HC;
 }
 
+#if MBED_CONF_SD_CRC_ENABLED
+SDBlockDevice::SDBlockDevice(const spi_pinmap_t &spi_pinmap, PinName cs, uint64_t hz, bool crc_on)
+    : _sectors(0), _spi(spi_pinmap), _cs(cs), _is_initialized(0),
+      _init_ref_count(0), _crc_on(crc_on)
+#else
+SDBlockDevice::SDBlockDevice(const spi_pinmap_t &spi_pinmap, PinName cs, uint64_t hz, bool crc_on)
+    : _sectors(0), _spi(spi_pinmap), _cs(cs), _is_initialized(0),
+      _init_ref_count(0)
+#endif
+{
+    _cs = 1;
+    _card_type = SDCARD_NONE;
+
+    // Set default to 100kHz for initialisation and 1MHz for data transfer
+    MBED_STATIC_ASSERT(((MBED_CONF_SD_INIT_FREQUENCY >= 100000) && (MBED_CONF_SD_INIT_FREQUENCY <= 400000)),
+                       "Initialization frequency should be between 100KHz to 400KHz");
+    _init_sck = MBED_CONF_SD_INIT_FREQUENCY;
+    _transfer_sck = hz;
+
+    _erase_size = BLOCK_SIZE_HC;
+}
+
 SDBlockDevice::~SDBlockDevice()
 {
     if (_is_initialized) {

components/storage/blockdevice/COMPONENT_SD/SDBlockDevice.h

@@ -27,14 +27,15 @@
 #include "drivers/DigitalOut.h"
 #include "platform/platform.h"
 #include "platform/PlatformMutex.h"
+#include "hal/static_pinmap.h"
 
 /** SDBlockDevice class
  *
  * Access an SD Card using SPI bus
  */
 class SDBlockDevice : public mbed::BlockDevice {
 public:
-    /** Creates an SDBlockDevice on a SPI bus specified by pins
+    /** Creates an SDBlockDevice on a SPI bus specified by pins (using dynamic pin-map)
      *
      *  @param mosi     SPI master out, slave in pin
      *  @param miso     SPI master in, slave out pin
@@ -44,6 +45,15 @@ class SDBlockDevice : public mbed::BlockDevice {
      *  @param crc_on   Enable cyclic redundancy check (defaults to disabled)
      */
     SDBlockDevice(PinName mosi, PinName miso, PinName sclk, PinName cs, uint64_t hz = 1000000, bool crc_on = 0);
+
+    /** Creates an SDBlockDevice on a SPI bus specified by pins (using static pin-map)
+     *
+     *  @param spi_pinmap Static SPI pin-map
+     *  @param hz         Clock speed of the SPI bus (defaults to 1MHz)
+     *  @param crc_on     Enable cyclic redundancy check (defaults to disabled)
+     */
+    SDBlockDevice(const spi_pinmap_t &spi_pinmap, PinName cs, uint64_t hz = 1000000, bool crc_on = 0);
+
     virtual ~SDBlockDevice();
 
     /** Initialize a block device

features/storage/kvstore/conf/kv_config.cpp

@@ -49,6 +49,10 @@
 
 #if COMPONENT_SD
 #include "components/storage/blockdevice/COMPONENT_SD/SDBlockDevice.h"
+
+#if (STATIC_PINMAP_READY)
+constexpr spi_pinmap_t static_spi_pinmap = get_spi_pinmap(MBED_CONF_SD_SPI_MOSI, MBED_CONF_SD_SPI_MISO, MBED_CONF_SD_SPI_CLK, NC);
+#endif
 #endif
 
 /**
@@ -564,12 +568,19 @@ BlockDevice *_get_blockdevice_SD(bd_addr_t start_address, bd_size_t size)
     bd_addr_t aligned_end_address;
     bd_addr_t aligned_start_address;
 
+#if (STATIC_PINMAP_READY)
+    static SDBlockDevice bd(
+        static_spi_pinmap,
+        MBED_CONF_SD_SPI_CS
+    );
+#else
     static SDBlockDevice bd(
         MBED_CONF_SD_SPI_MOSI,
         MBED_CONF_SD_SPI_MISO,
         MBED_CONF_SD_SPI_CLK,
         MBED_CONF_SD_SPI_CS
     );
+#endif
 
     if (bd.init() != MBED_SUCCESS) {
         tr_error("KV Config: SDBlockDevice init fail");

features/storage/system_storage/SystemStorage.cpp

@@ -38,6 +38,10 @@
 
 #if COMPONENT_SD
 #include "components/storage/blockdevice/COMPONENT_SD/SDBlockDevice.h"
+
+#if (STATIC_PINMAP_READY)
+constexpr spi_pinmap_t static_spi_pinmap = get_spi_pinmap(MBED_CONF_SD_SPI_MOSI, MBED_CONF_SD_SPI_MISO, MBED_CONF_SD_SPI_CLK, NC);
+#endif
 #endif
 
 #if COMPONENT_FLASHIAP
@@ -110,12 +114,19 @@ MBED_WEAK BlockDevice *BlockDevice::get_default_instance()
 
 #elif COMPONENT_SD
 
+#if (STATIC_PINMAP_READY)
+    static SDBlockDevice default_bd(
+        static_spi_pinmap,
+        MBED_CONF_SD_SPI_CS
+    );
+#else
     static SDBlockDevice default_bd(
         MBED_CONF_SD_SPI_MOSI,
         MBED_CONF_SD_SPI_MISO,
         MBED_CONF_SD_SPI_CLK,
         MBED_CONF_SD_SPI_CS
     );
+#endif
 
     return &default_bd;