From c484947cdfa52a6ffd06f66630ec4547cb9463b4 Mon Sep 17 00:00:00 2001
From: William Clark <wrvc96@gmail.com>
Date: Sat, 6 Jan 2024 17:19:24 +0000
Subject: [PATCH] change tab to 4s
---
i2c.c | 82 ++++++++++++++++----------------
lis3dh.h | 10 ++--
spi.c | 140 +++++++++++++++++++++++++++----------------------------
3 files changed, 116 insertions(+), 116 deletions(-)
diff --git a/i2c.c b/i2c.c
index 6f6a080..a797000 100644
--- a/i2c.c
+++ b/i2c.c
@@ -29,63 +29,63 @@ Example I2C use on linux/raspberry pi
static int fd;
int i2c_init(void) {
- fd = open(I2C_DEVICE, O_RDWR);
- if (fd < 0) {
- fprintf(stderr, "i2c_init(): could not open device: %s\n", I2C_DEVICE);
- return 1;
- }
+ fd = open(I2C_DEVICE, O_RDWR);
+ if (fd < 0) {
+ fprintf(stderr, "i2c_init(): could not open device: %s\n", I2C_DEVICE);
+ return 1;
+ }
- if (ioctl(fd, I2C_SLAVE, I2C_LIS3DH_ADDRESS) < 0) {
- fprintf(stderr, "i2c_init(): failed to acquire bus/talk to slave\n");
- close(fd);
- return 1;
- }
+ if (ioctl(fd, I2C_SLAVE, I2C_LIS3DH_ADDRESS) < 0) {
+ fprintf(stderr, "i2c_init(): failed to acquire bus/talk to slave\n");
+ close(fd);
+ return 1;
+ }
- return 0;
+ return 0;
}
int i2c_read(uint8_t reg, uint8_t *dst, uint32_t size) {
- uint8_t cmd[2];
+ uint8_t cmd[2];
- if (size > 1) {
- reg |= 0x80; /* AUTO INC */
- }
+ if (size > 1) {
+ reg |= 0x80; /* AUTO INC */
+ }
- cmd[0] = reg;
- cmd[1] = 0x00;
+ cmd[0] = reg;
+ cmd[1] = 0x00;
- if (write(fd, cmd, 2) != 2) {
- fprintf(stderr, "i2c_read(): error write()\n");
- return 1;
- }
-
- if (read(fd, dst, size) != (int)size) {
- fprintf(stderr, "i2c_read(): error read()\n");
- return 1;
-
- }
+ if (write(fd, cmd, 2) != 2) {
+ fprintf(stderr, "i2c_read(): error write()\n");
+ return 1;
+ }
+
+ if (read(fd, dst, size) != (int)size) {
+ fprintf(stderr, "i2c_read(): error read()\n");
+ return 1;
+
+ }
- return 0;
+ return 0;
}
int i2c_write(uint8_t reg, uint8_t value) {
- uint8_t cmd[2];
+ uint8_t cmd[2];
- cmd[0] = reg;
- cmd[1] = value;
-
- if (write(fd, cmd, 2) != 2) {
- fprintf(stderr, "i2c_write(): error write()\n");
- return 1;
- }
+ cmd[0] = reg;
+ cmd[1] = value;
+
+ if (write(fd, cmd, 2) != 2) {
+ fprintf(stderr, "i2c_write(): error write()\n");
+ return 1;
+ }
- return 0;
+ return 0;
}
int i2c_deinit(void) {
- if (fd) {
- close(fd);
- }
+ if (fd) {
+ close(fd);
+ }
- return 0;
+ return 0;
}
diff --git a/lis3dh.h b/lis3dh.h
index e39cfce..46e249a 100644
--- a/lis3dh.h
+++ b/lis3dh.h
@@ -112,11 +112,11 @@
/* user provided functions, init and deinit can be set to NULL and won't be used */
struct lis3dh_device {
- int (*init)(void);
- int (*read)(uint8_t reg, uint8_t *dst, uint32_t size);
- int (*write)(uint8_t reg, uint8_t value);
- int (*sleep)(uint32_t dur_us);
- int (*deinit)(void);
+ int (*init)(void);
+ int (*read)(uint8_t reg, uint8_t *dst, uint32_t size);
+ int (*write)(uint8_t reg, uint8_t value);
+ int (*sleep)(uint32_t dur_us);
+ int (*deinit)(void);
};
struct lis3dh_click_config {
diff --git a/spi.c b/spi.c
index 427c928..487810b 100644
--- a/spi.c
+++ b/spi.c
@@ -31,111 +31,111 @@ Example SPI use on linux/raspberry pi
static int fd;
int spi_init(void) {
- uint8_t mode = SPI_MODE_0;
- uint8_t bits = 8;
- uint32_t speed = SPI_SPEED;
+ uint8_t mode = SPI_MODE_0;
+ uint8_t bits = 8;
+ uint32_t speed = SPI_SPEED;
- if ((fd = open(SPI_DEVICE, O_RDWR)) < 0) {
- fprintf(stderr, "spi_init(): open(%s)\n", SPI_DEVICE);
- return 1;
- }
+ if ((fd = open(SPI_DEVICE, O_RDWR)) < 0) {
+ fprintf(stderr, "spi_init(): open(%s)\n", SPI_DEVICE);
+ return 1;
+ }
- if (ioctl(fd, SPI_IOC_RD_MODE, &mode) == -1) {
- fprintf(stderr, "spi_init(): SPI_IOC_RD_MODE\n");
- return 1;
- }
+ if (ioctl(fd, SPI_IOC_RD_MODE, &mode) == -1) {
+ fprintf(stderr, "spi_init(): SPI_IOC_RD_MODE\n");
+ return 1;
+ }
- if (ioctl(fd, SPI_IOC_WR_MODE, &mode) == -1) {
- fprintf(stderr, "spi_init(): SPI_IOC_WR_MODE\n");
- return 1;
- }
+ if (ioctl(fd, SPI_IOC_WR_MODE, &mode) == -1) {
+ fprintf(stderr, "spi_init(): SPI_IOC_WR_MODE\n");
+ return 1;
+ }
- if (ioctl(fd, SPI_IOC_WR_BITS_PER_WORD, &bits) == -1) {
- fprintf(stderr, "spi_init(): SPI_IOC_WR_BITS_PER_WORD\n");
- return 1;
- }
+ if (ioctl(fd, SPI_IOC_WR_BITS_PER_WORD, &bits) == -1) {
+ fprintf(stderr, "spi_init(): SPI_IOC_WR_BITS_PER_WORD\n");
+ return 1;
+ }
- if (ioctl(fd, SPI_IOC_RD_BITS_PER_WORD, &bits) == -1) {
- fprintf(stderr, "spi_init(): SPI_IOC_RD_BITS_PER_WORD\n");
- return 1;
- }
+ if (ioctl(fd, SPI_IOC_RD_BITS_PER_WORD, &bits) == -1) {
+ fprintf(stderr, "spi_init(): SPI_IOC_RD_BITS_PER_WORD\n");
+ return 1;
+ }
- if (ioctl(fd, SPI_IOC_WR_MAX_SPEED_HZ, &speed) == -1) {
- fprintf(stderr, "spi_init(): SPI_IOC_WR_MAX_SPEED_HZ\n");
- return 1;
- }
+ if (ioctl(fd, SPI_IOC_WR_MAX_SPEED_HZ, &speed) == -1) {
+ fprintf(stderr, "spi_init(): SPI_IOC_WR_MAX_SPEED_HZ\n");
+ return 1;
+ }
- if (ioctl(fd, SPI_IOC_RD_MAX_SPEED_HZ, &speed) == -1) {
- fprintf(stderr, "spi_init(): SPI_IOC_RD_MAX_SPEED_HZ\n");
- return 1;
- }
-
- return 0;
+ if (ioctl(fd, SPI_IOC_RD_MAX_SPEED_HZ, &speed) == -1) {
+ fprintf(stderr, "spi_init(): SPI_IOC_RD_MAX_SPEED_HZ\n");
+ return 1;
+ }
+
+ return 0;
}
int spi_read(uint8_t reg, uint8_t *dst, uint32_t size) {
- uint8_t send[2];
- struct spi_ioc_transfer tr[2] = {0};
+ uint8_t send[2];
+ struct spi_ioc_transfer tr[2] = {0};
- /* clear 2 MSbits */
- reg &= 0x3F;
+ /* clear 2 MSbits */
+ reg &= 0x3F;
- /* set READ bit */
+ /* set READ bit */
reg |= 0x80;
if (size > 1) {
- /* set AUTO INC bit */
+ /* set AUTO INC bit */
reg |= 0x40;
}
- send[0] = reg;
- send[1] = 0x00;
+ send[0] = reg;
+ send[1] = 0x00;
- tr[0].tx_buf = (unsigned long) send;
- tr[0].rx_buf = (unsigned long) 0;
- tr[0].len = 2;
+ tr[0].tx_buf = (unsigned long) send;
+ tr[0].rx_buf = (unsigned long) 0;
+ tr[0].len = 2;
- tr[1].tx_buf = (unsigned long) 0;
- tr[1].rx_buf = (unsigned long) dst;
- tr[1].len = size;
+ tr[1].tx_buf = (unsigned long) 0;
+ tr[1].rx_buf = (unsigned long) dst;
+ tr[1].len = size;
- if (ioctl(fd, SPI_IOC_MESSAGE(2), tr) < 0) {
- fprintf(stderr, "spi_read(): error ioctl()\n");
- return 1;
- }
+ if (ioctl(fd, SPI_IOC_MESSAGE(2), tr) < 0) {
+ fprintf(stderr, "spi_read(): error ioctl()\n");
+ return 1;
+ }
- return 0;
+ return 0;
}
int spi_write(uint8_t reg, uint8_t value) {
- struct spi_ioc_transfer tr[2] = {0};
+ struct spi_ioc_transfer tr[2] = {0};
- /* clear 2 MSbits */
- reg &= 0x3F;
+ /* clear 2 MSbits */
+ reg &= 0x3F;
- tr[0].tx_buf = (unsigned long) ®
- tr[0].rx_buf = (unsigned long) 0;
- tr[0].len = 1;
+ tr[0].tx_buf = (unsigned long) ®
+ tr[0].rx_buf = (unsigned long) 0;
+ tr[0].len = 1;
- tr[1].tx_buf = (unsigned long) &value;
- tr[1].rx_buf = (unsigned long) 0;
- tr[1].len = 1;
+ tr[1].tx_buf = (unsigned long) &value;
+ tr[1].rx_buf = (unsigned long) 0;
+ tr[1].len = 1;
- if (ioctl(fd, SPI_IOC_MESSAGE(2), tr) < 0) {
- fprintf(stderr, "spi_write(): error ioctl()\n");
- return 1;
- }
+ if (ioctl(fd, SPI_IOC_MESSAGE(2), tr) < 0) {
+ fprintf(stderr, "spi_write(): error ioctl()\n");
+ return 1;
+ }
- return 0;
+ return 0;
}
int spi_deinit(void) {
- if (fd) {
- close(fd);
- }
+ if (fd) {
+ close(fd);
+ }
- return 0;
+ return 0;
}