diff options
Diffstat (limited to 'chip/stm32')
| -rw-r--r-- | chip/stm32/i2c-stm32f0.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/chip/stm32/i2c-stm32f0.c b/chip/stm32/i2c-stm32f0.c index 1c9ba7113b..c06f0d2619 100644 --- a/chip/stm32/i2c-stm32f0.c +++ b/chip/stm32/i2c-stm32f0.c @@ -40,6 +40,18 @@ #endif #endif + +/* I2C port state data */ +struct i2c_port_data { + uint32_t timeout_us; /* Transaction timeout, or 0 to use default */ +}; +static struct i2c_port_data pdata[I2C_PORT_COUNT]; + +void i2c_set_timeout(int port, uint32_t timeout) +{ + pdata[port].timeout_us = timeout ? timeout : I2C_TX_TIMEOUT_MASTER; +} + /** * Wait for ISR register to contain the specified mask. * @@ -48,7 +60,7 @@ */ static int wait_isr(int port, int mask) { - uint64_t timeout = get_time().val + I2C_TX_TIMEOUT_MASTER; + uint64_t timeout = get_time().val + pdata[port].timeout_us; while (get_time().val < timeout) { int isr = STM32_I2C_ISR(port); @@ -143,6 +155,9 @@ defined(CONFIG_LOW_POWER_IDLE) && \ /* Set up initial bus frequencies */ i2c_set_freq_port(p); + + /* Set up default timeout */ + i2c_set_timeout(port, 0); } /*****************************************************************************/ |