I2C driver cleanup (#21273)
* remove i2c_start and i2c_stop from i2c drivers * remove static i2c_address variable from chibios i2c driver
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					 49 changed files with 280 additions and 603 deletions
				
			
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			@ -83,23 +83,16 @@ uint8_t init_mcp23018(void) {
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    // - unused  : input  : 1
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    // - input   : input  : 1
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    // - driving : output : 0
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    mcp23018_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT);    if (mcp23018_status) goto out;
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    mcp23018_status = i2c_write(IODIRA, I2C_TIMEOUT);            if (mcp23018_status) goto out;
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    mcp23018_status = i2c_write(0b00000000, I2C_TIMEOUT);        if (mcp23018_status) goto out;
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    mcp23018_status = i2c_write(0b00111111, I2C_TIMEOUT);        if (mcp23018_status) goto out;
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    i2c_stop();
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    uint8_t data[] = {0b00000000, 0b00111111};
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    mcp23018_status = i2c_writeReg(I2C_ADDR, IODIRA, data, sizeof(data), I2C_TIMEOUT);
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    // set pull-up
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    // - unused  : on  : 1
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    // - input   : on  : 1
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    // - driving : off : 0
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    mcp23018_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT);    if (mcp23018_status) goto out;
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    mcp23018_status = i2c_write(GPPUA, I2C_TIMEOUT);             if (mcp23018_status) goto out;
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    mcp23018_status = i2c_write(0b00000000, I2C_TIMEOUT);        if (mcp23018_status) goto out;
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    mcp23018_status = i2c_write(0b00111111, I2C_TIMEOUT);        if (mcp23018_status) goto out;
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out:
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    i2c_stop();
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    if (!mcp23018_status) {
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        // set pull-up
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        // - unused  : on  : 1
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        // - input   : on  : 1
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        // - driving : off : 0
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        mcp23018_status = i2c_writeReg(I2C_ADDR, GPPUA, data, sizeof(data), I2C_TIMEOUT);
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    }
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    // SREG=sreg_prev;
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