diff options
Diffstat (limited to 'nuttx/arch')
| -rw-r--r-- | nuttx/arch/arm/src/stm32/stm32_i2c.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/nuttx/arch/arm/src/stm32/stm32_i2c.c b/nuttx/arch/arm/src/stm32/stm32_i2c.c index 82ae6af5f..05c3f7095 100644 --- a/nuttx/arch/arm/src/stm32/stm32_i2c.c +++ b/nuttx/arch/arm/src/stm32/stm32_i2c.c @@ -185,6 +185,22 @@ enum stm32_trace_e I2CEVENT_ERROR /* Error occurred, param = 0 */ }; +#ifdef CONFIG_I2C_TRACE +static const char *stm32_trace_names[] = { + "NONE ", + "SENDADDR ", + "SENDBYTE ", + "ITBUFEN ", + "RCVBYTE ", + "REITBUFEN ", + "DISITBUFEN", + "BTFNOSTART", + "BTFRESTART", + "BTFSTOP ", + "ERROR " +}; +#endif + /* Trace data */ struct stm32_trace_s @@ -846,6 +862,7 @@ static void stm32_i2c_traceevent(FAR struct stm32_i2c_priv_s *priv, trace->event = event; trace->parm = parm; + trace->time = clock_systimer(); /* Bump up the trace index (unless we are out of trace entries) */ @@ -869,8 +886,8 @@ static void stm32_i2c_tracedump(FAR struct stm32_i2c_priv_s *priv) for (i = 0; i <= priv->tndx; i++) { trace = &priv->trace[i]; - syslog("%2d. STATUS: %08x COUNT: %3d EVENT: %2d PARM: %08x TIME: %d\n", - i+1, trace->status, trace->count, trace->event, trace->parm, + syslog("%2d. STATUS: %08x COUNT: %3d EVENT: %s PARM: %08x TIME: %d\n", + i+1, trace->status, trace->count, stm32_trace_names[trace->event], trace->parm, trace->time - priv->start_time); } } @@ -1620,8 +1637,8 @@ static int stm32_i2c_process(FAR struct i2c_dev_s *dev, FAR struct i2c_msg_s *ms status = stm32_i2c_getstatus(priv); errval = ETIMEDOUT; - i2cdbg("Timed out: CR1: %04x status: %08x\n", - stm32_i2c_getreg(priv, STM32_I2C_CR1_OFFSET), status); + i2cdbg("Timed out: CR1: %04x status: %08x after %d\n", + stm32_i2c_getreg(priv, STM32_I2C_CR1_OFFSET), status, timeout_us); /* "Note: When the STOP, START or PEC bit is set, the software must * not perform any write access to I2C_CR1 before this bit is @@ -2005,7 +2022,7 @@ int up_i2creset(FAR struct i2c_dev_s * dev) /* Give up if we have tried too hard */ - if (clock_count++ > 1000) + if (clock_count++ > CONFIG_STM32_I2CTIMEOTICKS) { goto out; } |