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WIP: Update all library with new I2C API

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This commit is contained in:
cets 2017-01-05 14:35:46 +01:00
parent d2e06118c2
commit e34a79d83c
19 changed files with 224 additions and 360 deletions
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23
extras/pcf8574/pcf8574.c
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@ -3,9 +3,9 @@
uint8_t pcf8574_port_read(uint8_t addr)
{
i2c_start();
uint8_t res = i2c_write((addr << 1) | 1) ? i2c_read(1) : 0;
i2c_stop();
uint8_t res;
if (i2c_slave_read(addr, NULL, &res, 1, false))
return 0;
return res;
}
@ -14,11 +14,8 @@ size_t pcf8574_port_read_buf(uint8_t addr, void *buf, size_t len)
if (!len || !buf) return 0;
uint8_t *_buf = (uint8_t *)buf;
i2c_start();
if (!i2c_write((addr << 1) | 1)) return 0;
for (size_t i = 0; i < len; i++)
*_buf++ = i2c_read(i == len - 1);
i2c_stop();
if (i2c_slave_read(addr, NULL, _buf, len, false))
return 0;
return len;
}
@ -27,18 +24,14 @@ size_t pcf8574_port_write_buf(uint8_t addr, void *buf, size_t len)
if (!len || !buf) return 0;
uint8_t *_buf = (uint8_t *)buf;
i2c_start();
if (!i2c_write(addr << 1)) return 0;
for (size_t i = 0; i < len; i++)
i2c_write(*_buf++);
if (i2c_slave_write(addr, NULL, _buf, len, false))
return 0;
return len;
}
void pcf8574_port_write(uint8_t addr, uint8_t value)
{
i2c_start();
if (i2c_write(addr << 1)) i2c_write(value);
i2c_stop();
i2c_slave_write(addr, NULL, &value, 1, false);
}
bool pcf8574_gpio_read(uint8_t addr, uint8_t num)