arch/risc-v/src/mpfs/mpfs_i2c.c: Add more error status codes

Add more error status codes to help debugging in the future. Signed-off-by: Jukka Laitinen <[email protected]>
tiiuae · Jan 11, 2024 · ad3078d · ad3078d
1 parent 100136e
commit ad3078d
Showing 1 changed file with 8 additions and 6 deletions.
diff --git a/arch/risc-v/src/mpfs/mpfs_i2c.c b/arch/risc-v/src/mpfs/mpfs_i2c.c
@@ -82,7 +82,10 @@ typedef enum mpfs_i2c_status
   MPFS_I2C_SUCCESS = 0u,
   MPFS_I2C_IN_PROGRESS,
   MPFS_I2C_FAILED,
-  MPFS_I2C_TIMED_OUT
+  MPFS_I2C_FAILED_SLAW_NACK,
+  MPFS_I2C_FAILED_SLAR_NACK,
+  MPFS_I2C_FAILED_TX_DATA_NACK,
+  MPFS_I2C_FAILED_BUS_ERROR,
 } mpfs_i2c_status_t;
 
 typedef enum mpfs_i2c_clock_divider
@@ -467,7 +470,7 @@ static int mpfs_i2c_irq(int cpuint, void *context, void *arg)
 
       case MPFS_I2C_ST_SLAW_NACK:
         modifyreg32(MPFS_I2C_CTRL, 0, MPFS_I2C_CTRL_STO_MASK);
-        priv->status = MPFS_I2C_FAILED;
+        priv->status = MPFS_I2C_FAILED_SLAW_NACK;
         break;
 
       case MPFS_I2C_ST_SLAW_ACK:
@@ -535,7 +538,7 @@ static int mpfs_i2c_irq(int cpuint, void *context, void *arg)
 
       case MPFS_I2C_ST_TX_DATA_NACK:
         modifyreg32(MPFS_I2C_CTRL, 0, MPFS_I2C_CTRL_STO_MASK);
-        priv->status = MPFS_I2C_FAILED;
+        priv->status = MPFS_I2C_FAILED_TX_DATA_NACK;
         break;
 
       case MPFS_I2C_ST_SLAR_ACK: /* SLA+R tx'ed. */
@@ -557,7 +560,7 @@ static int mpfs_i2c_irq(int cpuint, void *context, void *arg)
 
       case MPFS_I2C_ST_SLAR_NACK: /* SLA+R tx'ed; send a stop condition */
         modifyreg32(MPFS_I2C_CTRL, 0, MPFS_I2C_CTRL_STO_MASK);
-        priv->status = MPFS_I2C_FAILED;
+        priv->status = MPFS_I2C_FAILED_SLAR_NACK;
         break;
 
       case MPFS_I2C_ST_RX_DATA_ACK:
@@ -609,7 +612,6 @@ static int mpfs_i2c_irq(int cpuint, void *context, void *arg)
 
         priv->rx_buffer[priv->rx_idx] = (uint8_t)getreg32(MPFS_I2C_DATA);
         priv->rx_idx++;
-
         priv->status = MPFS_I2C_SUCCESS;
         modifyreg32(MPFS_I2C_CTRL, 0, MPFS_I2C_CTRL_STO_MASK);
         break;
@@ -650,7 +652,7 @@ static int mpfs_i2c_irq(int cpuint, void *context, void *arg)
 
         if (priv->status == MPFS_I2C_IN_PROGRESS)
           {
-            priv->status = MPFS_I2C_FAILED;
+            priv->status = MPFS_I2C_FAILED_BUS_ERROR;
           }
 
         break;