forked from Imagelibrary/rtems
2afb22b7e1
A speciality of the RTEMS build system was the make preinstall step. It copied header files from arbitrary locations into the build tree. The header files were included via the -Bsome/build/tree/path GCC command line option. This has at least seven problems: * The make preinstall step itself needs time and disk space. * Errors in header files show up in the build tree copy. This makes it hard for editors to open the right file to fix the error. * There is no clear relationship between source and build tree header files. This makes an audit of the build process difficult. * The visibility of all header files in the build tree makes it difficult to enforce API barriers. For example it is discouraged to use BSP-specifics in the cpukit. * An introduction of a new build system is difficult. * Include paths specified by the -B option are system headers. This may suppress warnings. * The parallel build had sporadic failures on some hosts. This patch removes the make preinstall step. All installed header files are moved to dedicated include directories in the source tree. Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc, etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g. erc32, imx, qoriq, etc. The new cpukit include directories are: * cpukit/include * cpukit/score/cpu/@RTEMS_CPU@/include * cpukit/libnetworking The new BSP include directories are: * bsps/include * bsps/@RTEMS_CPU@/include * bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include There are build tree include directories for generated files. The include directory order favours the most general header file, e.g. it is not possible to override general header files via the include path order. The "bootstrap -p" option was removed. The new "bootstrap -H" option should be used to regenerate the "headers.am" files. Update #3254.
110 lines
2.8 KiB
C
110 lines
2.8 KiB
C
/*
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* Copyright (c) 2016-2017 Chris Johns <chrisj@rtems.org>
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* All rights reserved.
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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/*
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* TI TMP112
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* http://www.ti.com/product/TMP112
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*/
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#ifndef TI_TMP112_H
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#define TI_TMP112_H
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#include <dev/i2c/i2c.h>
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/*
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* Confirguration.
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*/
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#define TI_TMP112_CR_0_25Hz (0 << 6)
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#define TI_TMP112_CR_1Hz (1 << 6)
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#define TI_TMP112_CR_4Hz (2 << 6) /* default */
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#define TI_TMP112_CR_8Hz (3 << 6)
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#define TI_TMP112_EM_NORMAL (0 << 4) /* default */
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#define TI_TMP112_EM_EXTENDED (1 << 4)
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#define TI_TMP112_SD_ON (0 << 8) /* default */
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#define TI_TMP112_SD_SHUTDOWN (1 << 8)
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#define TI_TMP112_TM_COMPARATOR (0 << 9) /* default */
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#define TI_TMP112_TM_INTERRUPT (1 << 9)
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#define TI_TMP112_POL_ALERT_LOW (0 << 10) /* default */
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#define TI_TMP112_POL_ALERT_HIGH (1 << 10)
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#define TI_TMP112_FQL_1 (0 << 11) /* default */
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#define TI_TMP112_FQL_2 (1 << 11)
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#define TI_TMP112_FQL_4 (2 << 11)
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#define TI_TMP112_FQL_6 (3 << 11)
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/*
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* IO control interface.
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*/
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#define TI_TMP112_GET_TEMP (I2C_DEV_IO_CONTROL + 0)
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#define TI_TMP112_GET_TEMP_RAW (I2C_DEV_IO_CONTROL + 1)
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#define TI_TMP112_SET_CONFIG (I2C_DEV_IO_CONTROL + 2)
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#define TI_TMP112_SET_LOW_TEMP (I2C_DEV_IO_CONTROL + 3)
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#define TI_TMP112_SET_HIGH_TEMP (I2C_DEV_IO_CONTROL + 4)
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/*
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* Register the device.
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*/
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int i2c_dev_register_ti_tmp112(const char* bus_path,
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const char* dev_path,
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uint16_t address);
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/*
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* Get the temperature in degrees C x 10000. To print you would so:
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*
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* printf("Temperature is %3d.%04d\n", temp / 10000, temp % 10000);
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*
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* If the device is shutdown a single conversion is made waiting for the
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* conversion to complete.
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*/
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static inline int
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ti_tmp112_get_temperature(int fd, int* temp)
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{
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return ioctl(fd, TI_TMP112_GET_TEMP, temp);
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}
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/*
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* Get the temperature as the raw register value.
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*
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* If the device is shutdown a single conversion is made waiting for the
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* conversion to complete.
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*/
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static inline int
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ti_tmp112_get_temperature_raw(int fd, unsigned int* temp)
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{
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return ioctl(fd, TI_TMP112_GET_TEMP_RAW, temp);
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}
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/*
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* Set the configuration.
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*/
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static inline int
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ti_tmp112_adc_set_config(int fd, uint16_t config)
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{
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return ioctl(fd, TI_TMP112_SET_CONFIG, (void *)(uintptr_t) config);
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}
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/*
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* Set the low temperature.
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*/
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static inline int
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ti_tmp112_set_low_temperator(int fd, uint16_t temp)
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{
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return ioctl(fd, TI_TMP112_SET_LOW_TEMP, (void *)(uintptr_t) temp);
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}
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/*
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* Set the high temperature.
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*/
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static inline int
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ti_tmp112_adc_set_high_threshold(int fd, uint16_t level)
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{
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return ioctl(fd, TI_TMP112_SET_HIGH_TEMP, (void *)(uintptr_t) level);
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}
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#endif
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