clang-format: run clang-format on C/C++ code
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
@@ -28,14 +28,14 @@
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#define MAX_BUFFER_LENGTH 6
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#define HMC5883L_I2C_ADDR 0x1E
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//configuration registers
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// configuration registers
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#define HMC5883L_CONF_REG_A 0x00
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#define HMC5883L_CONF_REG_B 0x01
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//mode register
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// mode register
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#define HMC5883L_MODE_REG 0x02
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//data register
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// data register
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#define HMC5883L_X_MSB_REG 0
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#define HMC5883L_X_LSB_REG 1
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#define HMC5883L_Z_MSB_REG 2
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@@ -44,10 +44,10 @@
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#define HMC5883L_Y_LSB_REG 5
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#define DATA_REG_SIZE 6
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//status register
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// status register
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#define HMC5883L_STATUS_REG 0x09
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//ID registers
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// ID registers
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#define HMC5883L_ID_A_REG 0x0A
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#define HMC5883L_ID_B_REG 0x0B
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#define HMC5883L_ID_C_REG 0x0C
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@@ -55,7 +55,7 @@
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#define HMC5883L_CONT_MODE 0x00
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#define HMC5883L_DATA_REG 0x03
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//scales
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// scales
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#define GA_0_88_REG 0x00 << 5
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#define GA_1_3_REG 0x01 << 5
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#define GA_1_9_REG 0x02 << 5
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@@ -65,7 +65,7 @@
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#define GA_5_6_REG 0x06 << 5
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#define GA_8_1_REG 0x07 << 5
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//digital resolutions
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// digital resolutions
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#define SCALE_0_73_MG 0.73
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#define SCALE_0_92_MG 0.92
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#define SCALE_1_22_MG 1.22
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@@ -76,14 +76,14 @@
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#define SCALE_4_35_MG 4.35
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int
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main(int argc, char **argv)
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main(int argc, char** argv)
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{
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mraa_init();
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float direction = 0;
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int16_t x = 0, y = 0, z = 0;
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uint8_t rx_tx_buf[MAX_BUFFER_LENGTH];
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//! [Interesting]
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//! [Interesting]
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mraa_i2c_context i2c;
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i2c = mraa_i2c_init(0);
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@@ -91,14 +91,14 @@ main(int argc, char **argv)
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rx_tx_buf[0] = HMC5883L_CONF_REG_B;
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rx_tx_buf[1] = GA_1_3_REG;
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mraa_i2c_write(i2c, rx_tx_buf, 2);
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//! [Interesting]
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//! [Interesting]
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mraa_i2c_address(i2c, HMC5883L_I2C_ADDR);
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rx_tx_buf[0] = HMC5883L_MODE_REG;
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rx_tx_buf[1] = HMC5883L_CONT_MODE;
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mraa_i2c_write(i2c, rx_tx_buf, 2);
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for(;;) {
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for (;;) {
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#if 0
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int i = 0;
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//alternative, equivalent method which helps to understand exactly what
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@@ -118,18 +118,19 @@ main(int argc, char **argv)
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// this call behaves very similarly to the Wire receive() call
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mraa_i2c_read(i2c, rx_tx_buf, DATA_REG_SIZE);
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x = (rx_tx_buf[HMC5883L_X_MSB_REG] << 8 ) | rx_tx_buf[HMC5883L_X_LSB_REG] ;
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z = (rx_tx_buf[HMC5883L_Z_MSB_REG] << 8 ) | rx_tx_buf[HMC5883L_Z_LSB_REG] ;
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y = (rx_tx_buf[HMC5883L_Y_MSB_REG] << 8 ) | rx_tx_buf[HMC5883L_Y_LSB_REG] ;
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x = (rx_tx_buf[HMC5883L_X_MSB_REG] << 8) | rx_tx_buf[HMC5883L_X_LSB_REG];
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z = (rx_tx_buf[HMC5883L_Z_MSB_REG] << 8) | rx_tx_buf[HMC5883L_Z_LSB_REG];
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y = (rx_tx_buf[HMC5883L_Y_MSB_REG] << 8) | rx_tx_buf[HMC5883L_Y_LSB_REG];
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//scale and calculate direction
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// scale and calculate direction
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direction = atan2(y * SCALE_0_92_MG, x * SCALE_0_92_MG);
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//check if the signs are reversed
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// check if the signs are reversed
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if (direction < 0)
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direction += 2 * M_PI;
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printf("Compass scaled data x : %f, y : %f, z : %f\n", x * SCALE_0_92_MG, y * SCALE_0_92_MG, z * SCALE_0_92_MG) ;
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printf("Heading : %f\n", direction * 180/M_PI) ;
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printf("Compass scaled data x : %f, y : %f, z : %f\n", x * SCALE_0_92_MG, y * SCALE_0_92_MG,
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z * SCALE_0_92_MG);
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printf("Heading : %f\n", direction * 180 / M_PI);
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}
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}
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