diff options
Diffstat (limited to 'os/various/i2c_helpers.h')
| -rw-r--r-- | os/various/i2c_helpers.h | 267 | 
1 files changed, 267 insertions, 0 deletions
| diff --git a/os/various/i2c_helpers.h b/os/various/i2c_helpers.h new file mode 100644 index 0000000..56f9be6 --- /dev/null +++ b/os/various/i2c_helpers.h @@ -0,0 +1,267 @@ +#ifndef I2C_HELPERS_H +#define I2C_HELPERS_H + +#include "hal.h" +#include "bswap.h" + + +typedef struct { +    /** +     * @brief Pointer to the I2C driver. +     */ +    I2CDriver *driver; +    /** +     * @brief I2C address. +     */ +    i2caddr_t addr; +} I2CHelper; + + + +#if !defined(I2C_HELPERS_AUTOMATIC_DRV) || (I2C_HELPERS_AUTOMATIC_DRV == FALSE) + +#define i2c_send(i2c, txbuf, txbytes)					\ +    _i2c_send(i2c, txbuf, txbytes) +#define i2c_transmit(i2c, txbuf, txbytes, rxbuf, rxbytes)		\ +    _i2c_transmit(i2c, txbuf, txbytes, rxbuf, rxbytes) +#define i2c_receive(i2, rxbuf, rxbytes)					\ +    _i2c_receive(i2c, rxbuf, rxbytes) + +#define i2c_send_timeout(i2c, txbuf, txbytes)				\ +    _i2c_send(i2c, txbuf, txbytes) +#define i2c_transmit_timeout(i2c, txbuf, txbytes, rxbuf, rxbytes)	\ +    _i2c_transmit(i2c, txbuf, txbytes, rxbuf, rxbytes) +#define i2c_receive_timeout(i2, rxbuf, rxbytes)				\ +    _i2c_receive(i2c, rxbuf, rxbytes) + +#define i2c_reg(i2c, reg)						\ +    _i2c_reg(i2c, reg)  + +#define i2c_reg_recv8(i2c, reg, val)					\ +    _i2c_reg_recv8(i2c, reg, val)		 +#define i2c_reg_recv16(i2c, reg, val)					\ +    _i2c_reg_recv16(i2c, reg, val)		 +#define i2c_reg_recv16_le(i2c, reg, val)				\ +    _i2c_reg_recv16_le(i2c, reg, val) +#define i2c_reg_recv16_be(i2c, reg, val)				\ +    _i2c_reg_recv16_be(i2c, reg, val)  +#define i2c_reg_recv32(i2c, reg, val)					\ +    _i2c_reg_recv32(i2c, reg, val) +#define i2c_reg_recv32_le(i2c, reg, val)				\ +    _i2c_reg_recv32_le(i2c, reg, val) +#define i2c_reg_recv32_be(i2c, reg, val)				\ +    _i2c_reg_recv32_be(i2c, reg, val) + +#define i2c_recv8(i2c, val)						\ +    _i2c_recv8(i2c, val)		 +#define i2c_recv16(i2c, val)						\ +    _i2c_recv16(i2c, val)		 +#define i2c_recv16_le(i2c, val)						\ +    _i2c_recv16_le(i2c, val) +#define i2c_recv16_be(i2c, val)						\ +    _i2c_recv16_be(i2c, val)  +#define i2c_recv32(i2c, val)						\ +    _i2c_recv32(i2c, val) +#define i2c_recv32_le(i2c, val)						\ +    _i2c_recv32_le(i2c, val) +#define i2c_recv32_be(i2c, val)						\ +    _i2c_recv32_be(i2c, val) + +#else + +#define i2c_send(txbuf, txbytes)					\ +    _i2c_send(&drv->config->i2c, txbuf, txbytes) +#define i2c_transmit(txbuf, txbytes, rxbuf, rxbytes)			\ +    _i2c_transmit(&drv->config->i2c, txbuf, txbytes, rxbuf, rxbytes) +#define i2c_receive(rxbuf, rxbytes)					\ +    _i2c_receive(&drv->config->i2c, rxbuf, rxbytes) + +#define i2c_send_timeout(txbuf, txbytes)				\ +    _i2c_send(&drv->config->i2c, txbuf, txbytes) +#define i2c_transmit_timeout(txbuf, txbytes, rxbuf, rxbytes)	\ +    _i2c_transmit(&drv->config->i2c, txbuf, txbytes, rxbuf, rxbytes) +#define i2c_receive_timeout(rxbuf, rxbytes)				\ +    _i2c_receive(&drv->config->i2c, rxbuf, rxbytes) + + +#define i2c_reg(reg)							\ +    _i2c_reg(&drv->config->i2c, reg)  + +#define i2c_reg_recv8(reg, val)						\ +    _i2c_reg_recv8(&drv->config->i2c, reg, val)		 +#define i2c_reg_recv16(reg, val)					\ +    _i2c_reg_recv16(&drv->config->i2c, reg, val)		 +#define i2c_reg_recv16_le(reg, val)					\ +    _i2c_reg_recv16_le(&drv->config->i2c, reg, val) +#define i2c_reg_recv16_be(reg, val)					\ +    _i2c_reg_recv16_be(&drv->config->i2c, reg, val)  +#define i2c_reg_recv32(reg, val)					\ +    _i2c_reg_recv32(&drv->config->i2c, reg, val) +#define i2c_reg_recv32_le(reg, val)					\ +    _i2c_reg_recv32_le(&drv->config->i2c, reg, val) +#define i2c_reg_recv32_be(reg, val)					\ +    _i2c_reg_recv32_be(&drv->config->i2c, reg, val) + +#define i2c_recv8(val)							\ +    _i2c_recv8(&drv->config->i2c, val)		 +#define i2c_recv16(val)							\ +    _i2c_recv16(&drv->config->i2c, val)		 +#define i2c_recv16_le(val)						\ +    _i2c_recv16_le(&drv->config->i2c, val) +#define i2c_recv16_be(val)						\ +    _i2c_recv16_be(&drv->config->i2c, val)  +#define i2c_recv32(val)							\ +    _i2c_recv32(&drv->config->i2c, val) +#define i2c_recv32_le(val)						\ +    _i2c_recv32_le(&drv->config->i2c, val) +#define i2c_recv32_be(val)						\ +    _i2c_recv32_be(&drv->config->i2c, val) + +#endif + + + + + +static inline msg_t +_i2c_send(I2CHelper *i2c, const uint8_t *txbuf, size_t txbytes) { +    return i2cMasterTransmitTimeout(i2c->driver, i2c->addr, +			    txbuf, txbytes, NULL, 0, TIME_INFINITE); +}; + +static inline msg_t +_i2c_transmit(I2CHelper *i2c, const uint8_t *txbuf, size_t txbytes, +	     uint8_t *rxbuf, size_t rxbytes) { +    return i2cMasterTransmitTimeout(i2c->driver, i2c->addr, +			    txbuf, txbytes, rxbuf, rxbytes, TIME_INFINITE); +} + +static inline msg_t +_i2c_receive(I2CHelper *i2c, uint8_t *rxbuf, size_t rxbytes) { +    return i2cMasterReceiveTimeout(i2c->driver, i2c->addr, +			    rxbuf, rxbytes, TIME_INFINITE); +}; + + + +static inline msg_t +_i2c_send_timeout(I2CHelper *i2c, const uint8_t *txbuf, size_t txbytes, +		 systime_t timeout) { +    return i2cMasterTransmitTimeout(i2c->driver, i2c->addr, +				    txbuf, txbytes, NULL, 0, timeout); +}; + +static inline msg_t +_i2c_transmit_timeout(I2CHelper *i2c, const uint8_t *txbuf, size_t txbytes, +		     uint8_t *rxbuf, size_t rxbytes, systime_t timeout) { +    return i2cMasterTransmitTimeout(i2c->driver, i2c->addr, +				    txbuf, txbytes, rxbuf, rxbytes, timeout); +} + +static inline msg_t +_i2c_receive_timeout(I2CHelper *i2c, uint8_t *rxbuf, size_t rxbytes, systime_t timeout) { +    return i2cMasterReceiveTimeout(i2c->driver, i2c->addr, +			    rxbuf, rxbytes, timeout); +}; + + +/*======================================================================*/ + + +static inline msg_t +_i2c_reg(I2CHelper *i2c, uint8_t reg) { +    return _i2c_transmit(i2c, ®, sizeof(reg), NULL, 0); +}; + +/*======================================================================*/ + +static inline msg_t +_i2c_reg_recv8(I2CHelper *i2c, uint8_t reg, uint8_t *val) { +    return _i2c_transmit(i2c, ®, sizeof(reg), (uint8_t*)val, sizeof(val)); +}; + +static inline msg_t +_i2c_reg_recv16(I2CHelper *i2c, uint8_t reg, uint16_t *val) { +    return _i2c_transmit(i2c, ®, sizeof(reg), (uint8_t*)val, sizeof(val)); +}; + +static inline msg_t +_i2c_reg_recv16_le(I2CHelper *i2c, uint8_t reg, uint16_t *val) { +    int msg = _i2c_reg_recv16(i2c, reg, val); +    if (msg >= 0) *val = le16_to_cpu(*val); +    return msg; +}; + +static inline msg_t +_i2c_reg_recv16_be(I2CHelper *i2c, uint8_t reg, uint16_t *val) { +    int msg = _i2c_reg_recv16(i2c, reg, val); +    if (msg >= 0) *val = be16_to_cpu(*val); +    return msg; +};     + +static inline msg_t +_i2c_reg_recv32(I2CHelper *i2c, uint8_t reg, uint32_t *val) { +    return _i2c_transmit(i2c, ®, sizeof(reg), (uint8_t*)val, sizeof(val)); +}; + +static inline msg_t +_i2c_reg_recv32_le(I2CHelper *i2c, uint8_t reg, uint32_t *val) { +    int msg = _i2c_reg_recv32(i2c, reg, val); +    if (msg >= 0) *val = le32_to_cpu(*val); +    return msg; +}; + +static inline msg_t +_i2c_reg_recv32_be(I2CHelper *i2c, uint8_t reg, uint32_t *val) { +    int msg = _i2c_reg_recv32(i2c, reg, val); +    if (msg >= 0) *val = be32_to_cpu(*val); +    return msg; +}; + + +/*======================================================================*/ + +static inline msg_t +_i2c_recv8(I2CHelper *i2c, uint8_t *val) { +    return _i2c_receive(i2c, (uint8_t*)val, sizeof(val)); +}; + +static inline msg_t +_i2c_recv16(I2CHelper *i2c, uint16_t *val) { +    return _i2c_receive(i2c, (uint8_t*)val, sizeof(val)); +}; + +static inline msg_t +_i2c_recv16_le(I2CHelper *i2c, uint16_t *val) { +    int msg = _i2c_recv16(i2c, val); +    if (msg >= 0) *val = le16_to_cpu(*val); +    return msg; +}; + +static inline msg_t +_i2c_recv16_be(I2CHelper *i2c, uint16_t *val) { +    int msg = _i2c_recv16(i2c, val); +    if (msg >= 0) *val = be16_to_cpu(*val); +    return msg; +}; + +static inline msg_t +_i2c_recv32(I2CHelper *i2c, uint32_t *val) { +    return _i2c_receive(i2c, (uint8_t*)val, sizeof(val)); +}; + +static inline msg_t +_i2c_recv32_le(I2CHelper *i2c, uint32_t *val) { +    int msg = _i2c_recv32(i2c, val); +    if (msg >= 0) *val = le32_to_cpu(*val); +    return msg; +}; + +static inline msg_t +_i2c_recv32_be(I2CHelper *i2c, uint32_t *val) { +    int msg = _i2c_recv32(i2c, val); +    if (msg >= 0) *val = be32_to_cpu(*val); +    return msg; +}; + +#endif | 
