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Diffstat (limited to 'include/linux/pmic_status.h')
-rw-r--r-- | include/linux/pmic_status.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/include/linux/pmic_status.h b/include/linux/pmic_status.h new file mode 100644 index 00000000..0e544835 --- /dev/null +++ b/include/linux/pmic_status.h @@ -0,0 +1,82 @@ +/* + * Copyright 2004-2011 Freescale Semiconductor, Inc. All Rights Reserved. + */ + +/* + * The code contained herein is licensed under the GNU Lesser General + * Public License. You may obtain a copy of the GNU Lesser General + * Public License Version 2.1 or later at the following locations: + * + * http://www.opensource.org/licenses/lgpl-license.html + * http://www.gnu.org/copyleft/lgpl.html + */ +#ifndef __ASM_ARCH_MXC_PMIC_STATUS_H__ +#define __ASM_ARCH_MXC_PMIC_STATUS_H__ +#include <asm-generic/errno-base.h> +#ifdef __KERNEL__ +#include <asm/uaccess.h> /* copy_{from,to}_user() */ +#endif +/*! + * @file arch-mxc/pmic_status.h + * @brief PMIC APIs return code definition. + * + * @ingroup PMIC_CORE + */ + +/*! + * @enum PMIC_STATUS + * @brief Define return values for all PMIC APIs. + * + * These return values are used by all of the PMIC APIs. + * + * @ingroup PMIC + */ +typedef enum { + PMIC_SUCCESS = 0, /*!< The requested operation was successfully + completed. */ + PMIC_ERROR = -1, /*!< The requested operation could not be completed + due to an error. */ + PMIC_PARAMETER_ERROR = -2, /*!< The requested operation failed because + one or more of the parameters was + invalid. */ + PMIC_NOT_SUPPORTED = -3, /*!< The requested operation could not be + completed because the PMIC hardware + does not support it. */ + PMIC_SYSTEM_ERROR_EINTR = -EINTR, + + PMIC_MALLOC_ERROR = -5, /*!< Error in malloc function */ + PMIC_UNSUBSCRIBE_ERROR = -6, /*!< Error in un-subscribe event */ + PMIC_EVENT_NOT_SUBSCRIBED = -7, /*!< Event occur and not subscribed */ + PMIC_EVENT_CALL_BACK = -8, /*!< Error - bad call back */ + PMIC_CLIENT_NBOVERFLOW = -9, /*!< The requested operation could not be + completed because there are too many + PMIC client requests */ +} PMIC_STATUS; + +/* + * Bitfield macros that use rely on bitfield width/shift information. + */ +#define BITFMASK(field) (((1U << (field ## _WID)) - 1) << (field ## _LSH)) +#define BITFVAL(field, val) ((val) << (field ## _LSH)) +#define BITFEXT(var, bit) ((var & BITFMASK(bit)) >> (bit ## _LSH)) + +/* + * Macros implementing error handling + */ +#define CHECK_ERROR(a) \ +do { \ + int ret = (a); \ + if (ret != PMIC_SUCCESS) \ + return ret; \ +} while (0) + +#define CHECK_ERROR_KFREE(func, freeptrs) \ +do { \ + int ret = (func); \ + if (ret != PMIC_SUCCESS) { \ + freeptrs; \ + return ret; \ + } \ +} while (0); + +#endif /* __ASM_ARCH_MXC_PMIC_STATUS_H__ */ |