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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-11-11 12:41:58 +0100 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-11-20 10:30:17 +0100 |
commit | 0510cfd8edaa3cf44e7e2ec986b8d8be4f319769 (patch) | |
tree | 945f21efb4da1665d485c192b36fae00eccd146d /cpukit/dev/include | |
parent | Add NXP PCA9535 16-bit GPIO I2C driver (diff) | |
download | rtems-0510cfd8edaa3cf44e7e2ec986b8d8be4f319769.tar.bz2 |
Add NXP PCA9548A 8-channel switch I2C driver
Diffstat (limited to 'cpukit/dev/include')
-rw-r--r-- | cpukit/dev/include/dev/i2c/switch-nxp-pca9548a.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/cpukit/dev/include/dev/i2c/switch-nxp-pca9548a.h b/cpukit/dev/include/dev/i2c/switch-nxp-pca9548a.h new file mode 100644 index 0000000000..ce8ef2c809 --- /dev/null +++ b/cpukit/dev/include/dev/i2c/switch-nxp-pca9548a.h @@ -0,0 +1,68 @@ +/** + * @file + * + * @brief Switch NXP PCA9548A Driver API + * + * @ingroup I2CSWITCHNXPPCA9548A + */ + +/* + * Copyright (c) 2014 embedded brains GmbH. All rights reserved. + * + * embedded brains GmbH + * Dornierstr. 4 + * 82178 Puchheim + * Germany + * <rtems@embedded-brains.de> + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#ifndef _DEV_I2C_SWITCH_NXP_PCA9548A_H +#define _DEV_I2C_SWITCH_NXP_PCA9548A_H + +#include <dev/i2c/i2c.h> + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +/** + * @defgroup I2CSWITCHNXPPCA9548A Switch NXP PCA9535 Driver + * + * @ingroup I2CDevice + * + * @brief Driver for NXP PCA9548A 8-channel switch device. + * + * @{ + */ + +int i2c_dev_register_switch_nxp_pca9548a( + const char *bus_path, + const char *dev_path, + uint16_t address +); + +#define SWITCH_NXP_PCA9548A_GET_CONTROL (I2C_DEV_IO_CONTROL + 0) + +#define SWITCH_NXP_PCA9548A_SET_CONTROL (I2C_DEV_IO_CONTROL + 1) + +static inline int switch_nxp_pca9548a_get_control(int fd, uint8_t *val) +{ + return ioctl(fd, SWITCH_NXP_PCA9548A_GET_CONTROL, val); +} + +static inline int switch_nxp_pca9548a_set_control(int fd, uint8_t val) +{ + return ioctl(fd, SWITCH_NXP_PCA9548A_SET_CONTROL, (void *)(uintptr_t) val); +} + +/** @} */ + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* _DEV_I2C_SWITCH_NXP_PCA9548A_H */ |