Add api about I2C and SPI ....

targets/TARGET_TT/TARGET_TT_M4G9/analogin_api.c

@@ -131,3 +131,8 @@ float analogin_read(analogin_t *obj)
     uint16_t value = analogin_read_u16(obj);
     return (float)(value * (1.0f / (float)ADC_12BIT_RANGE));
 }
+
+const PinMap *analogin_pinmap()
+{
+    return PinMap_ADC;
+}

targets/TARGET_TT/TARGET_TT_M4G9/analogout_api.c

@@ -120,3 +120,8 @@ uint16_t analogout_read_u16(dac_t *obj)
     //Upper and lower byte stored with read value
     return ((value << (16 - DAC_NB_BITS)) | value);
 }
+
+const PinMap *analogout_pinmap()
+{
+    return PinMap_DAC;
+}

targets/TARGET_TT/TARGET_TT_M4G9/i2c_api.c

@@ -189,3 +189,23 @@ int i2c_slave_write(i2c_t *obj, const char *data, int length)
     int32_t count = i2c_slave_write_t(&obj->my_i2c, (uint8_t *)data, length);
     return count;
 }
+
+const PinMap *i2c_master_sda_pinmap()
+{
+    return PinMap_I2C_SDA;
+}
+
+const PinMap *i2c_master_scl_pinmap()
+{
+    return PinMap_I2C_SCL;
+}
+
+const PinMap *i2c_slave_sda_pinmap()
+{
+    return PinMap_I2C_SDA;
+}
+
+const PinMap *i2c_slave_scl_pinmap()
+{
+    return PinMap_I2C_SCL;
+}

targets/TARGET_TT/TARGET_TT_M4G9/pwmout_api.c

@@ -218,3 +218,8 @@ void pwmout_pulsewidth_us(pwmout_t *obj, int us)
     value = (((seconds / obj->period) * 100.0f) / 100.0f);
     pwmout_write(obj, value);
 }
+
+const PinMap *pwmout_pinmap()
+{
+    return PinMap_PWM;
+}

targets/TARGET_TT/TARGET_TT_M4G9/serial_api.c

@@ -386,3 +386,35 @@ static void uart_swreset(TSB_UART_TypeDef *UARTx)
         // No process
     }
 }
+
+const PinMap *serial_tx_pinmap()
+{
+    return PinMap_UART_TX;
+}
+
+const PinMap *serial_rx_pinmap()
+{
+    return PinMap_UART_RX;
+}
+
+const PinMap *serial_cts_pinmap()
+{
+#if !DEVICE_SERIAL_FC
+    static const PinMap PinMap_UART_CTS[] = {
+        {NC, NC, 0}
+    };
+#endif
+
+    return PinMap_UART_CTS;
+}
+
+const PinMap *serial_rts_pinmap()
+{
+#if !DEVICE_SERIAL_FC
+    static const PinMap PinMap_UART_RTS[] = {
+        {NC, NC, 0}
+    };
+#endif
+
+    return PinMap_UART_RTS;
+}

targets/TARGET_TT/TARGET_TT_M4G9/spi_api.c

@@ -299,3 +299,43 @@ uint8_t spi_get_module(spi_t *obj)
 {
     return (uint8_t)(obj->module);
 }
+
+const PinMap *spi_master_mosi_pinmap()
+{
+    return PinMap_SPI_MOSI;
+}
+
+const PinMap *spi_master_miso_pinmap()
+{
+    return PinMap_SPI_MISO;
+}
+
+const PinMap *spi_master_clk_pinmap()
+{
+    return PinMap_SPI_SCLK;
+}
+
+const PinMap *spi_master_cs_pinmap()
+{
+    return PinMap_SPI_SSEL;
+}
+
+const PinMap *spi_slave_mosi_pinmap()
+{
+    return PinMap_SPI_MOSI;
+}
+
+const PinMap *spi_slave_miso_pinmap()
+{
+    return PinMap_SPI_MISO;
+}
+
+const PinMap *spi_slave_clk_pinmap()
+{
+    return PinMap_SPI_SCLK;
+}
+
+const PinMap *spi_slave_cs_pinmap()
+{
+    return PinMap_SPI_SSEL;
+}