Driver: I2C: STM32F4: Fix for every alternate i2c read failure in F2, F4 & L1 families.

This commit fixes the i2c driver issue reported in the below link:
#13967 on STM32F4xx platform.

The data type of XferOperation has been changed from uint8_t to uint32_t
so that it can hold a 32bit value (for example: I2C_OTHER_FRAME or
I2C_OTHER_AND_LAST_FRAME).

Signed-off-by: Krishna Mohan Dani <[email protected]>

Author: ikmdani

targets/TARGET_STM/TARGET_STM32F2/objects.h

@@ -122,7 +122,7 @@ struct i2c_s {
     PinName scl;
     IRQn_Type event_i2cIRQ;
     IRQn_Type error_i2cIRQ;
-    uint8_t XferOperation;
+    uint32_t XferOperation;
     volatile uint8_t event;
 #if DEVICE_I2CSLAVE
     uint8_t slave;

targets/TARGET_STM/TARGET_STM32F4/objects.h

@@ -106,7 +106,7 @@ struct i2c_s {
     int scl_func;
     IRQn_Type event_i2cIRQ;
     IRQn_Type error_i2cIRQ;
-    uint8_t XferOperation;
+    uint32_t XferOperation;
     volatile uint8_t event;
 #if DEVICE_I2CSLAVE
     uint8_t slave;

targets/TARGET_STM/i2c_api.c

@@ -86,6 +86,10 @@ static I2C_HandleTypeDef *i2c_handles[I2C_NUM];
 #define FLAG_TIMEOUT ((int)0x1000)
 #endif
 
+#ifdef I2C_IP_VERSION_V1
+#define I2C_STATE_NONE            ((uint32_t)(HAL_I2C_MODE_NONE))
+#endif
+
 /* Declare i2c_init_internal to be used in this file */
 void i2c_init_internal(i2c_t *obj, const i2c_pinmap_t *pinmap);
 
@@ -1057,7 +1061,9 @@ void HAL_I2C_MasterRxCpltCallback(I2C_HandleTypeDef *hi2c)
     /* Get object ptr based on handler ptr */
     i2c_t *obj = get_i2c_obj(hi2c);
     struct i2c_s *obj_s = I2C_S(obj);
-
+#ifdef I2C_IP_VERSION_V1
+    hi2c->PreviousState = I2C_STATE_NONE;
+#endif
     /* Set event flag */
     obj_s->event = I2C_EVENT_TRANSFER_COMPLETE;
 }