code layout

1 files changed, 9 insertions, 3 deletions

diff --git a/fw/fe310/eos/soc/i2c.c b/fw/fe310/eos/soc/i2c.c
index a507af1..553a9bf 100644
--- a/fw/fe310/eos/soc/i2c.c
+++ b/fw/fe310/eos/soc/i2c.c
@@ -11,22 +11,28 @@
 
 int eos_i2c_init(uint8_t wakeup_cause) {
     eos_i2c_speed(EOS_I2C_SPEED);
-    // eos_i2c_start();
+    eos_i2c_enable();
 
     return EOS_OK;
 }
 
-void eos_i2c_start(void) {
+void eos_i2c_enable(void) {
     I2C0_REGB(I2C_CONTROL)  |=  I2C_CONTROL_EN;
+
     GPIO_REG(GPIO_IOF_SEL)  &= ~IOF0_I2C0_MASK;
     GPIO_REG(GPIO_IOF_EN)   |=  IOF0_I2C0_MASK;
 }
 
-void eos_i2c_stop(void) {
+void eos_i2c_disable(void) {
     GPIO_REG(GPIO_IOF_EN)   &= ~IOF0_I2C0_MASK;
+
     I2C0_REGB(I2C_CONTROL)  &= ~I2C_CONTROL_EN;
 }
 
+int eos_i2c_enabled(void) {
+    return !!(GPIO_REG(GPIO_IOF_EN) & IOF0_I2C0_MASK);
+}
+
 void eos_i2c_speed(uint32_t baud_rate) {
     unsigned long clock_rate = PRCI_get_cpu_freq();
     uint16_t prescaler = (clock_rate / (baud_rate * 5)) - 1;