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1.软件i2c功能优化。

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MacRsh
2023-12-19 19:22:48 +08:00
parent 8e6ce1b215
commit 0786360508
2 changed files with 50 additions and 17 deletions
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39
device/soft_i2c.c
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@@ -82,6 +82,16 @@ static int mr_soft_i2c_bus_configure(struct mr_i2c_bus *i2c_bus, struct mr_i2c_c
if (state == MR_ENABLE)
{
/* Soft I2C only support host mode */
if (config->host_slave != MR_I2C_HOST)
{
return MR_ENOTSUP;
}
/* Calculate the delay time */
soft_i2c_bus->delay = 1000000 / config->baud_rate;
/* Configure SCL and SDA */
if (soft_i2c_bus->desc < 0)
{
soft_i2c_bus->desc = mr_dev_open("pin", MR_OFLAG_RDWR);
@@ -89,25 +99,26 @@ static int mr_soft_i2c_bus_configure(struct mr_i2c_bus *i2c_bus, struct mr_i2c_c
{
return soft_i2c_bus->desc;
}
}
/* Configure SCL pin */
mr_dev_ioctl(soft_i2c_bus->desc, MR_CTL_PIN_SET_NUMBER, &soft_i2c_bus->scl_pin);
int ret = mr_dev_ioctl(soft_i2c_bus->desc, MR_CTL_PIN_SET_MODE, mr_make_local(int, MR_PIN_MODE_OUTPUT_OD));
if (ret < 0)
{
return ret;
}
/* Configure SCL pin */
mr_dev_ioctl(soft_i2c_bus->desc, MR_CTL_PIN_SET_NUMBER, &soft_i2c_bus->scl_pin);
int ret = mr_dev_ioctl(soft_i2c_bus->desc, MR_CTL_PIN_SET_MODE, mr_make_local(int, MR_PIN_MODE_OUTPUT_OD));
if (ret < 0)
{
return ret;
}
/* Configure SDA pin */
mr_dev_ioctl(soft_i2c_bus->desc, MR_CTL_PIN_SET_NUMBER, &soft_i2c_bus->sda_pin);
ret = mr_dev_ioctl(soft_i2c_bus->desc, MR_CTL_PIN_SET_MODE, mr_make_local(int, MR_PIN_MODE_OUTPUT_OD));
if (ret < 0)
{
return ret;
/* Configure SDA pin */
mr_dev_ioctl(soft_i2c_bus->desc, MR_CTL_PIN_SET_NUMBER, &soft_i2c_bus->sda_pin);
ret = mr_dev_ioctl(soft_i2c_bus->desc, MR_CTL_PIN_SET_MODE, mr_make_local(int, MR_PIN_MODE_OUTPUT_OD));
if (ret < 0)
{
return ret;
}
}
} else
{
/* Reconfigure SCL and SDA */
if (soft_i2c_bus->desc >= 0)
{
/* Reconfigure SCL pin */