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[/] [i2cslave/] [trunk/] [sw/] [aardvark_c/] [aardvark.c] - Rev 5
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/*========================================================================= | Aardvark Interface Library |-------------------------------------------------------------------------- | Copyright (c) 2002-2008 Total Phase, Inc. | All rights reserved. | www.totalphase.com | | Redistribution and use in source and binary forms, with or without | modification, are permitted provided that the following conditions | are met: | | - Redistributions of source code must retain the above copyright | notice, this list of conditions and the following disclaimer. | | - Redistributions in binary form must reproduce the above copyright | notice, this list of conditions and the following disclaimer in the | documentation and/or other materials provided with the distribution. | | - Neither the name of Total Phase, Inc. nor the names of its | contributors may be used to endorse or promote products derived from | this software without specific prior written permission. | | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN | ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | POSSIBILITY OF SUCH DAMAGE. |-------------------------------------------------------------------------- | To access Aardvark devices through the API: | | 1) Use one of the following shared objects: | aardvark.so -- Linux shared object | aardvark.dll -- Windows dynamic link library | | 2) Along with one of the following language modules: | aardvark.c/h -- C/C++ API header file and interface module | aardvark_py.py -- Python API | aardvark.bas -- Visual Basic 6 API | aardvark.cs -- C# .NET source | aardvark_net.dll -- Compiled .NET binding ========================================================================*/ /*========================================================================= | INCLUDES ========================================================================*/ /* This #include can be customized to conform to the user's build paths. */ #include "aardvark.h" /*========================================================================= | VERSION CHECK ========================================================================*/ #define AA_CFILE_VERSION 0x0500 /* v5.00 */ #define AA_REQ_SW_VERSION 0x0500 /* v5.00 */ /* * Make sure that the header file was included and that * the version numbers match. */ #ifndef AA_HEADER_VERSION # error Unable to include header file. Please check include path. #elif AA_HEADER_VERSION != AA_CFILE_VERSION # error Version mismatch between source and header files. #endif /*========================================================================= | DEFINES ========================================================================*/ #define API_NAME "aardvark" #define API_DEBUG AA_DEBUG #define API_OK AA_OK #define API_UNABLE_TO_LOAD_LIBRARY AA_UNABLE_TO_LOAD_LIBRARY #define API_INCOMPATIBLE_LIBRARY AA_INCOMPATIBLE_LIBRARY #define API_UNABLE_TO_LOAD_FUNCTION AA_UNABLE_TO_LOAD_FUNCTION #define API_HEADER_VERSION AA_HEADER_VERSION #define API_REQ_SW_VERSION AA_REQ_SW_VERSION /*========================================================================= | LINUX AND DARWIN SUPPORT ========================================================================*/ #if defined(__APPLE_CC__) && !defined(DARWIN) #define DARWIN #endif #if defined(linux) || defined(DARWIN) #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <string.h> #include <fcntl.h> #ifdef DARWIN #define DLOPEN_NO_WARN extern int _NSGetExecutablePath (char *buf, unsigned long *bufsize); #endif #include <dlfcn.h> #define DLL_HANDLE void * #define MAX_SO_PATH 256 static char SO_NAME[MAX_SO_PATH+1] = API_NAME ".so"; /* * These functions allow the Linux behavior to emulate * the Windows behavior as specified below in the Windows * support section. * * First, search for the shared object in the application * binary path, then in the current working directory. * * Searching the application binary path requires /proc * filesystem support, which is standard in 2.4.x kernels. * * If the /proc filesystem is not present, the shared object * will not be loaded from the execution path unless that path * is either the current working directory or explicitly * specified in LD_LIBRARY_PATH. */ static int _checkPath (const char *path) { char *filename = (char *)malloc(strlen(path) +1 + strlen(SO_NAME) +1); int fd; // Check if the file is readable sprintf(filename, "%s/%s", path, SO_NAME); fd = open(filename, O_RDONLY); if (fd >= 0) { strncpy(SO_NAME, filename, MAX_SO_PATH); close(fd); } // Clean up and exit free(filename); return (fd >= 0); } static int _getExecPath (char *path, unsigned long maxlen) { #ifdef linux return readlink("/proc/self/exe", path, maxlen); #endif #ifdef DARWIN _NSGetExecutablePath(path, &maxlen); return maxlen; #endif } static void _setSearchPath () { char path[MAX_SO_PATH+1]; int count; char *p; /* Make sure that SO_NAME is not an absolute path. */ if (SO_NAME[0] == '/') return; /* Check the execution directory name. */ memset(path, 0, sizeof(path)); count = _getExecPath(path, MAX_SO_PATH); if (count > 0) { char *p = strrchr(path, '/'); if (p == path) ++p; if (p != 0) *p = '\0'; /* If there is a match, return immediately. */ if (_checkPath(path)) return; } /* Check the current working directory. */ p = getcwd(path, MAX_SO_PATH); if (p != 0) _checkPath(path); } #endif /*========================================================================= | WINDOWS SUPPORT ========================================================================*/ #if defined(WIN32) || defined(_WIN32) #include <stdio.h> #include <windows.h> #define DLL_HANDLE HINSTANCE #define dlopen(name, flags) LoadLibraryA(name) #define dlsym(handle, name) GetProcAddress(handle, name) #define dlerror() "Exiting program" #define SO_NAME API_NAME ".dll" /* * Use the default Windows DLL loading rules: * 1. The directory from which the application binary was loaded. * 2. The application's current directory. * 3a. [Windows NT/2000/XP only] 32-bit system directory * (default: c:\winnt\System32) * 3b. 16-bit system directory * (default: c:\winnt\System or c:\windows\system) * 4. The windows directory * (default: c:\winnt or c:\windows) * 5. The directories listed in the PATH environment variable */ static void _setSearchPath () { /* Do nothing */ } #endif /*========================================================================= | SHARED LIBRARY LOADER ========================================================================*/ /* The error conditions can be customized depending on the application. */ static void *_loadFunction (const char *name, int *result) { static DLL_HANDLE handle = 0; void * function = 0; /* Load the shared library if necessary */ if (handle == 0) { u32 (*version) (void); u16 sw_version; u16 api_version_req; _setSearchPath(); handle = dlopen(SO_NAME, RTLD_LAZY); if (handle == 0) { #if API_DEBUG fprintf(stderr, "Unable to load %s\n", SO_NAME); fprintf(stderr, "%s\n", dlerror()); #endif *result = API_UNABLE_TO_LOAD_LIBRARY; return 0; } version = (void *)dlsym(handle, "c_version"); if (version == 0) { #if API_DEBUG fprintf(stderr, "Unable to bind c_version() in %s\n", SO_NAME); fprintf(stderr, "%s\n", dlerror()); #endif handle = 0; *result = API_INCOMPATIBLE_LIBRARY; return 0; } sw_version = (u16)((version() >> 0) & 0xffff); api_version_req = (u16)((version() >> 16) & 0xffff); if (sw_version < API_REQ_SW_VERSION || API_HEADER_VERSION < api_version_req) { #if API_DEBUG fprintf(stderr, "\nIncompatible versions:\n"); fprintf(stderr, " Header version = v%d.%02d ", (API_HEADER_VERSION >> 8) & 0xff, API_HEADER_VERSION & 0xff); if (sw_version < API_REQ_SW_VERSION) fprintf(stderr, "(requires library >= %d.%02d)\n", (API_REQ_SW_VERSION >> 8) & 0xff, API_REQ_SW_VERSION & 0xff); else fprintf(stderr, "(library version OK)\n"); fprintf(stderr, " Library version = v%d.%02d ", (sw_version >> 8) & 0xff, (sw_version >> 0) & 0xff); if (API_HEADER_VERSION < api_version_req) fprintf(stderr, "(requires header >= %d.%02d)\n", (api_version_req >> 8) & 0xff, (api_version_req >> 0) & 0xff); else fprintf(stderr, "(header version OK)\n"); #endif handle = 0; *result = API_INCOMPATIBLE_LIBRARY; return 0; } } /* Bind the requested function in the shared library */ function = (void *)dlsym(handle, name); *result = function ? API_OK : API_UNABLE_TO_LOAD_FUNCTION; return function; } /*========================================================================= | FUNCTIONS ========================================================================*/ static int (*c_aa_find_devices) (int, u16 *) = 0; int aa_find_devices ( int num_devices, u16 * devices ) { if (c_aa_find_devices == 0) { int res = 0; if (!(c_aa_find_devices = _loadFunction("c_aa_find_devices", &res))) return res; } return c_aa_find_devices(num_devices, devices); } static int (*c_aa_find_devices_ext) (int, u16 *, int, u32 *) = 0; int aa_find_devices_ext ( int num_devices, u16 * devices, int num_ids, u32 * unique_ids ) { if (c_aa_find_devices_ext == 0) { int res = 0; if (!(c_aa_find_devices_ext = _loadFunction("c_aa_find_devices_ext", &res))) return res; } return c_aa_find_devices_ext(num_devices, devices, num_ids, unique_ids); } static Aardvark (*c_aa_open) (int) = 0; Aardvark aa_open ( int port_number ) { if (c_aa_open == 0) { int res = 0; if (!(c_aa_open = _loadFunction("c_aa_open", &res))) return res; } return c_aa_open(port_number); } static Aardvark (*c_aa_open_ext) (int, AardvarkExt *) = 0; Aardvark aa_open_ext ( int port_number, AardvarkExt * aa_ext ) { if (c_aa_open_ext == 0) { int res = 0; if (!(c_aa_open_ext = _loadFunction("c_aa_open_ext", &res))) return res; } return c_aa_open_ext(port_number, aa_ext); } static int (*c_aa_close) (Aardvark) = 0; int aa_close ( Aardvark aardvark ) { if (c_aa_close == 0) { int res = 0; if (!(c_aa_close = _loadFunction("c_aa_close", &res))) return res; } return c_aa_close(aardvark); } static int (*c_aa_port) (Aardvark) = 0; int aa_port ( Aardvark aardvark ) { if (c_aa_port == 0) { int res = 0; if (!(c_aa_port = _loadFunction("c_aa_port", &res))) return res; } return c_aa_port(aardvark); } static int (*c_aa_features) (Aardvark) = 0; int aa_features ( Aardvark aardvark ) { if (c_aa_features == 0) { int res = 0; if (!(c_aa_features = _loadFunction("c_aa_features", &res))) return res; } return c_aa_features(aardvark); } static u32 (*c_aa_unique_id) (Aardvark) = 0; u32 aa_unique_id ( Aardvark aardvark ) { if (c_aa_unique_id == 0) { int res = 0; if (!(c_aa_unique_id = _loadFunction("c_aa_unique_id", &res))) return res; } return c_aa_unique_id(aardvark); } static const char * (*c_aa_status_string) (int) = 0; const char * aa_status_string ( int status ) { if (c_aa_status_string == 0) { int res = 0; if (!(c_aa_status_string = _loadFunction("c_aa_status_string", &res))) return 0; } return c_aa_status_string(status); } static int (*c_aa_log) (Aardvark, int, int) = 0; int aa_log ( Aardvark aardvark, int level, int handle ) { if (c_aa_log == 0) { int res = 0; if (!(c_aa_log = _loadFunction("c_aa_log", &res))) return res; } return c_aa_log(aardvark, level, handle); } static int (*c_aa_version) (Aardvark, AardvarkVersion *) = 0; int aa_version ( Aardvark aardvark, AardvarkVersion * version ) { if (c_aa_version == 0) { int res = 0; if (!(c_aa_version = _loadFunction("c_aa_version", &res))) return res; } return c_aa_version(aardvark, version); } static int (*c_aa_configure) (Aardvark, AardvarkConfig) = 0; int aa_configure ( Aardvark aardvark, AardvarkConfig config ) { if (c_aa_configure == 0) { int res = 0; if (!(c_aa_configure = _loadFunction("c_aa_configure", &res))) return res; } return c_aa_configure(aardvark, config); } static int (*c_aa_target_power) (Aardvark, u08) = 0; int aa_target_power ( Aardvark aardvark, u08 power_mask ) { if (c_aa_target_power == 0) { int res = 0; if (!(c_aa_target_power = _loadFunction("c_aa_target_power", &res))) return res; } return c_aa_target_power(aardvark, power_mask); } static u32 (*c_aa_sleep_ms) (u32) = 0; u32 aa_sleep_ms ( u32 milliseconds ) { if (c_aa_sleep_ms == 0) { int res = 0; if (!(c_aa_sleep_ms = _loadFunction("c_aa_sleep_ms", &res))) return res; } return c_aa_sleep_ms(milliseconds); } static int (*c_aa_async_poll) (Aardvark, int) = 0; int aa_async_poll ( Aardvark aardvark, int timeout ) { if (c_aa_async_poll == 0) { int res = 0; if (!(c_aa_async_poll = _loadFunction("c_aa_async_poll", &res))) return res; } return c_aa_async_poll(aardvark, timeout); } static int (*c_aa_i2c_free_bus) (Aardvark) = 0; int aa_i2c_free_bus ( Aardvark aardvark ) { if (c_aa_i2c_free_bus == 0) { int res = 0; if (!(c_aa_i2c_free_bus = _loadFunction("c_aa_i2c_free_bus", &res))) return res; } return c_aa_i2c_free_bus(aardvark); } static int (*c_aa_i2c_bitrate) (Aardvark, int) = 0; int aa_i2c_bitrate ( Aardvark aardvark, int bitrate_khz ) { if (c_aa_i2c_bitrate == 0) { int res = 0; if (!(c_aa_i2c_bitrate = _loadFunction("c_aa_i2c_bitrate", &res))) return res; } return c_aa_i2c_bitrate(aardvark, bitrate_khz); } static int (*c_aa_i2c_bus_timeout) (Aardvark, u16) = 0; int aa_i2c_bus_timeout ( Aardvark aardvark, u16 timeout_ms ) { if (c_aa_i2c_bus_timeout == 0) { int res = 0; if (!(c_aa_i2c_bus_timeout = _loadFunction("c_aa_i2c_bus_timeout", &res))) return res; } return c_aa_i2c_bus_timeout(aardvark, timeout_ms); } static int (*c_aa_i2c_read) (Aardvark, u16, AardvarkI2cFlags, u16, u08 *) = 0; int aa_i2c_read ( Aardvark aardvark, u16 slave_addr, AardvarkI2cFlags flags, u16 num_bytes, u08 * data_in ) { if (c_aa_i2c_read == 0) { int res = 0; if (!(c_aa_i2c_read = _loadFunction("c_aa_i2c_read", &res))) return res; } return c_aa_i2c_read(aardvark, slave_addr, flags, num_bytes, data_in); } static int (*c_aa_i2c_read_ext) (Aardvark, u16, AardvarkI2cFlags, u16, u08 *, u16 *) = 0; int aa_i2c_read_ext ( Aardvark aardvark, u16 slave_addr, AardvarkI2cFlags flags, u16 num_bytes, u08 * data_in, u16 * num_read ) { if (c_aa_i2c_read_ext == 0) { int res = 0; if (!(c_aa_i2c_read_ext = _loadFunction("c_aa_i2c_read_ext", &res))) return res; } return c_aa_i2c_read_ext(aardvark, slave_addr, flags, num_bytes, data_in, num_read); } static int (*c_aa_i2c_write) (Aardvark, u16, AardvarkI2cFlags, u16, const u08 *) = 0; int aa_i2c_write ( Aardvark aardvark, u16 slave_addr, AardvarkI2cFlags flags, u16 num_bytes, const u08 * data_out ) { if (c_aa_i2c_write == 0) { int res = 0; if (!(c_aa_i2c_write = _loadFunction("c_aa_i2c_write", &res))) return res; } return c_aa_i2c_write(aardvark, slave_addr, flags, num_bytes, data_out); } static int (*c_aa_i2c_write_ext) (Aardvark, u16, AardvarkI2cFlags, u16, const u08 *, u16 *) = 0; int aa_i2c_write_ext ( Aardvark aardvark, u16 slave_addr, AardvarkI2cFlags flags, u16 num_bytes, const u08 * data_out, u16 * num_written ) { if (c_aa_i2c_write_ext == 0) { int res = 0; if (!(c_aa_i2c_write_ext = _loadFunction("c_aa_i2c_write_ext", &res))) return res; } return c_aa_i2c_write_ext(aardvark, slave_addr, flags, num_bytes, data_out, num_written); } static int (*c_aa_i2c_slave_enable) (Aardvark, u08, u16, u16) = 0; int aa_i2c_slave_enable ( Aardvark aardvark, u08 addr, u16 maxTxBytes, u16 maxRxBytes ) { if (c_aa_i2c_slave_enable == 0) { int res = 0; if (!(c_aa_i2c_slave_enable = _loadFunction("c_aa_i2c_slave_enable", &res))) return res; } return c_aa_i2c_slave_enable(aardvark, addr, maxTxBytes, maxRxBytes); } static int (*c_aa_i2c_slave_disable) (Aardvark) = 0; int aa_i2c_slave_disable ( Aardvark aardvark ) { if (c_aa_i2c_slave_disable == 0) { int res = 0; if (!(c_aa_i2c_slave_disable = _loadFunction("c_aa_i2c_slave_disable", &res))) return res; } return c_aa_i2c_slave_disable(aardvark); } static int (*c_aa_i2c_slave_set_response) (Aardvark, u08, const u08 *) = 0; int aa_i2c_slave_set_response ( Aardvark aardvark, u08 num_bytes, const u08 * data_out ) { if (c_aa_i2c_slave_set_response == 0) { int res = 0; if (!(c_aa_i2c_slave_set_response = _loadFunction("c_aa_i2c_slave_set_response", &res))) return res; } return c_aa_i2c_slave_set_response(aardvark, num_bytes, data_out); } static int (*c_aa_i2c_slave_write_stats) (Aardvark) = 0; int aa_i2c_slave_write_stats ( Aardvark aardvark ) { if (c_aa_i2c_slave_write_stats == 0) { int res = 0; if (!(c_aa_i2c_slave_write_stats = _loadFunction("c_aa_i2c_slave_write_stats", &res))) return res; } return c_aa_i2c_slave_write_stats(aardvark); } static int (*c_aa_i2c_slave_read) (Aardvark, u08 *, u16, u08 *) = 0; int aa_i2c_slave_read ( Aardvark aardvark, u08 * addr, u16 num_bytes, u08 * data_in ) { if (c_aa_i2c_slave_read == 0) { int res = 0; if (!(c_aa_i2c_slave_read = _loadFunction("c_aa_i2c_slave_read", &res))) return res; } return c_aa_i2c_slave_read(aardvark, addr, num_bytes, data_in); } static int (*c_aa_i2c_slave_write_stats_ext) (Aardvark, u16 *) = 0; int aa_i2c_slave_write_stats_ext ( Aardvark aardvark, u16 * num_written ) { if (c_aa_i2c_slave_write_stats_ext == 0) { int res = 0; if (!(c_aa_i2c_slave_write_stats_ext = _loadFunction("c_aa_i2c_slave_write_stats_ext", &res))) return res; } return c_aa_i2c_slave_write_stats_ext(aardvark, num_written); } static int (*c_aa_i2c_slave_read_ext) (Aardvark, u08 *, u16, u08 *, u16 *) = 0; int aa_i2c_slave_read_ext ( Aardvark aardvark, u08 * addr, u16 num_bytes, u08 * data_in, u16 * num_read ) { if (c_aa_i2c_slave_read_ext == 0) { int res = 0; if (!(c_aa_i2c_slave_read_ext = _loadFunction("c_aa_i2c_slave_read_ext", &res))) return res; } return c_aa_i2c_slave_read_ext(aardvark, addr, num_bytes, data_in, num_read); } static int (*c_aa_i2c_monitor_enable) (Aardvark) = 0; int aa_i2c_monitor_enable ( Aardvark aardvark ) { if (c_aa_i2c_monitor_enable == 0) { int res = 0; if (!(c_aa_i2c_monitor_enable = _loadFunction("c_aa_i2c_monitor_enable", &res))) return res; } return c_aa_i2c_monitor_enable(aardvark); } static int (*c_aa_i2c_monitor_disable) (Aardvark) = 0; int aa_i2c_monitor_disable ( Aardvark aardvark ) { if (c_aa_i2c_monitor_disable == 0) { int res = 0; if (!(c_aa_i2c_monitor_disable = _loadFunction("c_aa_i2c_monitor_disable", &res))) return res; } return c_aa_i2c_monitor_disable(aardvark); } static int (*c_aa_i2c_monitor_read) (Aardvark, u16, u16 *) = 0; int aa_i2c_monitor_read ( Aardvark aardvark, u16 num_bytes, u16 * data ) { if (c_aa_i2c_monitor_read == 0) { int res = 0; if (!(c_aa_i2c_monitor_read = _loadFunction("c_aa_i2c_monitor_read", &res))) return res; } return c_aa_i2c_monitor_read(aardvark, num_bytes, data); } static int (*c_aa_i2c_pullup) (Aardvark, u08) = 0; int aa_i2c_pullup ( Aardvark aardvark, u08 pullup_mask ) { if (c_aa_i2c_pullup == 0) { int res = 0; if (!(c_aa_i2c_pullup = _loadFunction("c_aa_i2c_pullup", &res))) return res; } return c_aa_i2c_pullup(aardvark, pullup_mask); } static int (*c_aa_spi_bitrate) (Aardvark, int) = 0; int aa_spi_bitrate ( Aardvark aardvark, int bitrate_khz ) { if (c_aa_spi_bitrate == 0) { int res = 0; if (!(c_aa_spi_bitrate = _loadFunction("c_aa_spi_bitrate", &res))) return res; } return c_aa_spi_bitrate(aardvark, bitrate_khz); } static int (*c_aa_spi_configure) (Aardvark, AardvarkSpiPolarity, AardvarkSpiPhase, AardvarkSpiBitorder) = 0; int aa_spi_configure ( Aardvark aardvark, AardvarkSpiPolarity polarity, AardvarkSpiPhase phase, AardvarkSpiBitorder bitorder ) { if (c_aa_spi_configure == 0) { int res = 0; if (!(c_aa_spi_configure = _loadFunction("c_aa_spi_configure", &res))) return res; } return c_aa_spi_configure(aardvark, polarity, phase, bitorder); } static int (*c_aa_spi_write) (Aardvark, u16, const u08 *, u16, u08 *) = 0; int aa_spi_write ( Aardvark aardvark, u16 out_num_bytes, const u08 * data_out, u16 in_num_bytes, u08 * data_in ) { if (c_aa_spi_write == 0) { int res = 0; if (!(c_aa_spi_write = _loadFunction("c_aa_spi_write", &res))) return res; } return c_aa_spi_write(aardvark, out_num_bytes, data_out, in_num_bytes, data_in); } static int (*c_aa_spi_slave_enable) (Aardvark) = 0; int aa_spi_slave_enable ( Aardvark aardvark ) { if (c_aa_spi_slave_enable == 0) { int res = 0; if (!(c_aa_spi_slave_enable = _loadFunction("c_aa_spi_slave_enable", &res))) return res; } return c_aa_spi_slave_enable(aardvark); } static int (*c_aa_spi_slave_disable) (Aardvark) = 0; int aa_spi_slave_disable ( Aardvark aardvark ) { if (c_aa_spi_slave_disable == 0) { int res = 0; if (!(c_aa_spi_slave_disable = _loadFunction("c_aa_spi_slave_disable", &res))) return res; } return c_aa_spi_slave_disable(aardvark); } static int (*c_aa_spi_slave_set_response) (Aardvark, u08, const u08 *) = 0; int aa_spi_slave_set_response ( Aardvark aardvark, u08 num_bytes, const u08 * data_out ) { if (c_aa_spi_slave_set_response == 0) { int res = 0; if (!(c_aa_spi_slave_set_response = _loadFunction("c_aa_spi_slave_set_response", &res))) return res; } return c_aa_spi_slave_set_response(aardvark, num_bytes, data_out); } static int (*c_aa_spi_slave_read) (Aardvark, u16, u08 *) = 0; int aa_spi_slave_read ( Aardvark aardvark, u16 num_bytes, u08 * data_in ) { if (c_aa_spi_slave_read == 0) { int res = 0; if (!(c_aa_spi_slave_read = _loadFunction("c_aa_spi_slave_read", &res))) return res; } return c_aa_spi_slave_read(aardvark, num_bytes, data_in); } static int (*c_aa_spi_master_ss_polarity) (Aardvark, AardvarkSpiSSPolarity) = 0; int aa_spi_master_ss_polarity ( Aardvark aardvark, AardvarkSpiSSPolarity polarity ) { if (c_aa_spi_master_ss_polarity == 0) { int res = 0; if (!(c_aa_spi_master_ss_polarity = _loadFunction("c_aa_spi_master_ss_polarity", &res))) return res; } return c_aa_spi_master_ss_polarity(aardvark, polarity); } static int (*c_aa_gpio_direction) (Aardvark, u08) = 0; int aa_gpio_direction ( Aardvark aardvark, u08 direction_mask ) { if (c_aa_gpio_direction == 0) { int res = 0; if (!(c_aa_gpio_direction = _loadFunction("c_aa_gpio_direction", &res))) return res; } return c_aa_gpio_direction(aardvark, direction_mask); } static int (*c_aa_gpio_pullup) (Aardvark, u08) = 0; int aa_gpio_pullup ( Aardvark aardvark, u08 pullup_mask ) { if (c_aa_gpio_pullup == 0) { int res = 0; if (!(c_aa_gpio_pullup = _loadFunction("c_aa_gpio_pullup", &res))) return res; } return c_aa_gpio_pullup(aardvark, pullup_mask); } static int (*c_aa_gpio_get) (Aardvark) = 0; int aa_gpio_get ( Aardvark aardvark ) { if (c_aa_gpio_get == 0) { int res = 0; if (!(c_aa_gpio_get = _loadFunction("c_aa_gpio_get", &res))) return res; } return c_aa_gpio_get(aardvark); } static int (*c_aa_gpio_set) (Aardvark, u08) = 0; int aa_gpio_set ( Aardvark aardvark, u08 value ) { if (c_aa_gpio_set == 0) { int res = 0; if (!(c_aa_gpio_set = _loadFunction("c_aa_gpio_set", &res))) return res; } return c_aa_gpio_set(aardvark, value); } static int (*c_aa_gpio_change) (Aardvark, u16) = 0; int aa_gpio_change ( Aardvark aardvark, u16 timeout ) { if (c_aa_gpio_change == 0) { int res = 0; if (!(c_aa_gpio_change = _loadFunction("c_aa_gpio_change", &res))) return res; } return c_aa_gpio_change(aardvark, timeout); }