Add last_abort_reason

Fixes #1049
raspberrypi · Sep 25, 2024 · aa786a1 · aa786a1
1 parent d08f36c
commit aa786a1
Show file tree

Hide file tree

Showing 2 changed files with 4 additions and 1 deletion.
diff --git a/src/rp2_common/hardware_i2c/i2c.c b/src/rp2_common/hardware_i2c/i2c.c
@@ -239,6 +239,7 @@ static int i2c_write_blocking_internal(i2c_inst_t *i2c, uint8_t addr, const uint
 
     // nostop means we are now at the end of a *message* but not the end of a *transfer*
     i2c->restart_on_next = nostop;
+    i2c->last_abort_reason = abort_reason;
     return rval;
 }
 
@@ -278,7 +279,7 @@ static int i2c_read_blocking_internal(i2c_inst_t *i2c, uint8_t addr, uint8_t *ds
 
     bool abort = false;
     bool timeout = false;
-    uint32_t abort_reason;
+    uint32_t abort_reason = 0;
     int byte_ctr;
     int ilen = (int)len;
     for (byte_ctr = 0; byte_ctr < ilen; ++byte_ctr) {
@@ -329,6 +330,7 @@ static int i2c_read_blocking_internal(i2c_inst_t *i2c, uint8_t addr, uint8_t *ds
     }
 
     i2c->restart_on_next = nostop;
+    i2c->last_abort_reason = abort_reason;
     return rval;
 }
 

diff --git a/src/rp2_common/hardware_i2c/include/hardware/i2c.h b/src/rp2_common/hardware_i2c/include/hardware/i2c.h
@@ -151,6 +151,7 @@ void i2c_set_slave_mode(i2c_inst_t *i2c, bool slave, uint8_t addr);
 struct i2c_inst {
     i2c_hw_t *hw;
     bool restart_on_next;
+    uint32_t last_abort_reason;
 };
 
 /**