option (BUILDSWIGPYTHON "Build swig python modules." ON)
option (BUILDSWIGNODE "Build swig node modules." ON)
option (BUILDSWIGJAVA "Build Java API." OFF)
+option (USBPLAT "Detection USB platform." ON)
option (IPK "Generate IPK using CPack" OFF)
option (RPM "Generate RPM using CPack" OFF)
option (BUILDPYTHON3 "Use python3 for building/installing" OFF)
#define MRAA_PLATFORM_NAME_MAX_SIZE 64
#define MRAA_PIN_NAME_SIZE 12
+#define MRAA_SUB_PLATFORM_BIT_SHIFT 9
+#define MRAA_SUB_PLATFORM_MASK (1<<MRAA_SUB_PLATFORM_BIT_SHIFT)
+#define MRAA_IS_ON_SUB_PLATFORM(pin_or_bus) (((pin_or_bus)|MRAA_SUB_PLATFORM_MASK) != 0)
+#define MRAA_USE_SUB_PLATFORM(pin_or_bus) ((pin_or_bus)|MRAA_SUB_PLATFORM_MASK)
+#define MRAA_GET_SUB_PLATFORM_INDEX(pin_or_bus) ((pin_or_bus)&(~MRAA_SUB_PLATFORM_MASK))
+
+
+
/** @file
*
* This file defines the basic shared values for libmraa
*/
char* mraa_get_pin_name(int pin);
+/**
+ * Get default i2c bus, board must be initialised.
+ *
+ * @return int default i2c bus index
+ */
+int mraa_get_default_2c_bus();
+
+
#ifdef __cplusplus
}
#endif
MRAA_BANANA = 7, /**< Allwinner A20 based Banana Pi and Banana Pro */
MRAA_INTEL_NUC5 = 8, /**< The Intel 5th generations Broadwell NUCs */
+ // USB platform extenders start at 256
+ MRAA_FTDI_FT4222 = 256, /**< FTDI FT4222 USB to i2c bridge */
+
MRAA_UNKNOWN_PLATFORM =
99 /**< An unknown platform type, typically will load INTEL_GALILEO_GEN1 */
} mraa_platform_t;
MRAA_UART_PARITY_SPACE = 4
} mraa_uart_parity_t;
+
+
#ifdef __cplusplus
}
#endif
mraa_result_t (*gpio_mmap_setup) (mraa_gpio_context dev, mraa_boolean_t en);
mraa_result_t (*i2c_init_pre) (unsigned int bus);
+ mraa_result_t (*i2c_init_bus_replace) (mraa_i2c_context dev);
+ mraa_i2c_context (*i2c_init_raw_replace) (unsigned int bus);
mraa_result_t (*i2c_init_post) (mraa_i2c_context dev);
mraa_result_t (*i2c_set_frequency_replace) (mraa_i2c_context dev, mraa_i2c_mode_t mode);
+ mraa_result_t (*i2c_address_replace) (mraa_i2c_context dev, uint8_t addr);
+ int (*i2c_read_replace) (mraa_i2c_context dev, uint8_t* data, int length);
+ uint8_t (*i2c_read_byte_replace) (mraa_i2c_context dev);
+ uint8_t (*i2c_read_byte_data_replace) (mraa_i2c_context dev, const uint8_t command);
+ uint16_t (*i2c_read_word_data_replace) (mraa_i2c_context dev, const uint8_t command);
+ int (*i2c_read_bytes_data_replace) (mraa_i2c_context dev, uint8_t command, uint8_t* data, int length);
+ mraa_result_t (*i2c_write_replace) (mraa_i2c_context dev, const uint8_t* data, int length);
+ mraa_result_t (*i2c_write_byte_replace) (mraa_i2c_context dev, uint8_t data);
+ mraa_result_t (*i2c_write_byte_data_replace) (mraa_i2c_context dev, const uint8_t data, const uint8_t command);
+ mraa_result_t (*i2c_write_word_data_replace) (mraa_i2c_context dev, const uint16_t data, const uint8_t command);
+ mraa_result_t (*i2c_stop_replace) (mraa_i2c_context dev);
+
+
mraa_result_t (*aio_get_valid_fp) (mraa_aio_context dev);
mraa_result_t (*aio_init_pre) (unsigned int aio);
--- /dev/null
+/*
+ * Author: Henry Bruce <henry.bruce@intel.com>
+ * Copyright (c) 2015 Intel Corporation.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+
+#include "common.h"
+#include "mraa.h"
+#include "types.h"
+
+typedef struct {
+ mraa_i2c_context (*i2c_init_raw) (unsigned int bus);
+ mraa_result_t (*i2c_frequency) (mraa_i2c_context dev, mraa_i2c_mode_t mode);
+ mraa_result_t (*i2c_address) (mraa_i2c_context dev, uint8_t addr);
+ int (*i2c_read) (mraa_i2c_context dev, uint8_t* data, int length);
+ uint8_t (*i2c_read_byte) (mraa_i2c_context dev);
+ uint8_t (*i2c_read_byte_data) (mraa_i2c_context dev, const uint8_t command);
+ uint16_t (*i2c_read_word_data) (mraa_i2c_context dev, const uint8_t command);
+ int (*i2c_read_bytes_data) (mraa_i2c_context dev, uint8_t command, uint8_t* data, int length);
+ mraa_result_t (*i2c_write) (mraa_i2c_context dev, const uint8_t* data, int length);
+ mraa_result_t (*i2c_write_byte) (mraa_i2c_context dev, const uint8_t data);
+ mraa_result_t (*i2c_write_byte_data) (mraa_i2c_context dev, const uint8_t data, const uint8_t command);
+ mraa_result_t (*i2c_write_word_data) (mraa_i2c_context dev, const uint16_t data, const uint8_t command);
+ mraa_result_t (*i2c_stop) (mraa_i2c_context dev);
+} mraa_i2c_func_t;
+
+
+typedef struct {
+ mraa_i2c_func_t* i2c;
+} mraa_func_t;
+
mraa_platform_t mraa_arm_platform();
/**
+ * runtime detect running usb platform extender
+ *
+ * @return mraa_platform_t of the detected platform extender
+ */
+mraa_platform_t mraa_usb_platform_extender(mraa_board_t* board);
+
+/**
* helper function to check if file exists
*
* @param filename to check
#include "common.h"
#include "mraa.h"
+#include "mraa_func.h"
+#include "mraa_adv_func.h"
// general status failures for internal functions
#define MRAA_PLATFORM_NO_INIT -3
int busnum; /**< the bus number of the /dev/i2c-* device */
int fh; /**< the file handle to the /dev/i2c-* device */
int addr; /**< the address of the i2c slave */
- unsigned long funcs;
+ unsigned long funcs; /**< /dev/i2c-* device capabilities as per https://www.kernel.org/doc/Documentation/i2c/functionality */
+ void *handle; /**< generic handle for non-standard drivers that don't use file descriptors */
+ mraa_adv_func_t* func_table;
/*@}*/
};
unsigned int bus_id; /**< ID as exposed in the system */
unsigned int scl; /**< i2c SCL */
unsigned int sda; /**< i2c SDA */
+ // mraa_drv_api_t drv_type; /**< Driver type */
/*@}*/
} mraa_i2c_bus_t;
/**
* A Structure representing a platform/board.
*/
-typedef struct {
+
+typedef struct _board_t {
/*@{*/
unsigned int phy_pin_count; /**< The Total IO pins on board */
unsigned int gpio_count; /**< GPIO Count */
int pwm_min_period; /**< Minimum period in us */
const char* platform_name; /**< Platform Name pointer */
mraa_pininfo_t* pins; /**< Pointer to pin array */
+ mraa_adv_func_t* adv_func; /**< Pointer to advanced function disptach table */
+ struct _board_t* sub_platform; /**< Pointer to sub platform */
/*@}*/
} mraa_board_t;
+
+
--- /dev/null
+/*
+ * Author: Henry Bruce <henry.bruce@intel.com>
+ * Copyright (c) 2015 Intel Corporation.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "mraa_internal.h"
+
+mraa_result_t mraa_ftdi_ft4222_init();
+mraa_result_t mraa_ftdi_ft4222_get_version(unsigned int* versionChip, unsigned int* versionLib);
+mraa_board_t* mraa_ftdi_ft4222(mraa_board_t* board);
+
+
+#ifdef __cplusplus
+}
+#endif
${PROJECT_SOURCE_DIR}/src/arm/banana.c
)
+set (mraa_LIBS ${CMAKE_THREAD_LIBS_INIT})
+
if (X86PLAT)
add_subdirectory(x86)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DX86PLAT=1")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DARMPLAT=1")
endif()
+if (USBPLAT)
+ add_subdirectory(usb)
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DUSBPLAT=1")
+ set (mraa_LIBS ${mraa_LIBS} ft4222)
+endif()
+
+
set (mraa_LIB_SRCS
${mraa_LIB_PLAT_SRCS_NOAUTO}
# autogenerated version file
)
add_library (mraa SHARED ${mraa_LIB_SRCS})
-target_link_libraries (mraa ${CMAKE_THREAD_LIBS_INIT})
+
+
+target_link_libraries (mraa ${mraa_LIBS})
set_target_properties(
mraa
#include <sys/ioctl.h>
#include "linux/i2c-dev.h"
+// FIXME: Nasty macro to test for presence of function in context structure function table
+#define IS_FUNC_DEFINED(dev, func) (dev != NULL && dev->func_table != NULL && dev->func_table->func != NULL)
+
+
typedef union i2c_smbus_data_union {
uint8_t byte; ///< data byte
unsigned short word; ///< data short word
i2c_smbus_data_t* data; ///< data
} i2c_smbus_ioctl_data_t;
+
+static mraa_adv_func_t* func_table;
+
int
mraa_i2c_smbus_access(int fh, uint8_t read_write, uint8_t command, int size, i2c_smbus_data_t* data)
{
mraa_i2c_context
mraa_i2c_init(int bus)
{
- if (plat == NULL) {
+ mraa_board_t* board = plat;
+ if (board == NULL) {
syslog(LOG_ERR, "i2c: Platform Not Initialised");
return NULL;
}
- if (plat->i2c_bus_count == 0) {
+
+ if (MRAA_IS_ON_SUB_PLATFORM(bus)) {
+ syslog(LOG_NOTICE, "i2c: Using sub platform");
+ board = board->sub_platform;
+ if (board == NULL) {
+ syslog(LOG_ERR, "i2c: Sub platform Not Initialised");
+ return NULL;
+ }
+ bus = MRAA_GET_SUB_PLATFORM_INDEX(bus);
+ }
+
+ if (board->i2c_bus_count == 0) {
syslog(LOG_ERR, "No i2c buses defined in platform");
return NULL;
}
- if (bus >= plat->i2c_bus_count) {
+ if (bus >= board->i2c_bus_count) {
syslog(LOG_ERR, "Above i2c bus count");
return NULL;
}
- if (plat->i2c_bus[bus].bus_id == -1) {
+ if (board->i2c_bus[bus].bus_id == -1) {
syslog(LOG_ERR, "Invalid i2c bus, moving to default i2c bus");
- bus = plat->def_i2c_bus;
+ bus = board->def_i2c_bus;
}
- int pos = plat->i2c_bus[bus].sda;
- if (plat->pins[pos].i2c.mux_total > 0) {
- if (mraa_setup_mux_mapped(plat->pins[pos].i2c) != MRAA_SUCCESS) {
+ int pos = board->i2c_bus[bus].sda;
+ if (board->pins[pos].i2c.mux_total > 0) {
+ if (mraa_setup_mux_mapped(board->pins[pos].i2c) != MRAA_SUCCESS) {
syslog(LOG_ERR, "i2c: Failed to set-up i2c sda multiplexer");
return NULL;
}
}
- pos = plat->i2c_bus[bus].scl;
- if (plat->pins[pos].i2c.mux_total > 0) {
- if (mraa_setup_mux_mapped(plat->pins[pos].i2c) != MRAA_SUCCESS) {
+ pos = board->i2c_bus[bus].scl;
+ if (board->pins[pos].i2c.mux_total > 0) {
+ if (mraa_setup_mux_mapped(board->pins[pos].i2c) != MRAA_SUCCESS) {
syslog(LOG_ERR, "i2c: Failed to set-up i2c scl multiplexer");
return NULL;
}
}
- return mraa_i2c_init_raw((unsigned int) plat->i2c_bus[bus].bus_id);
+ // FIXME: use global func_table variable to access advanced function table without changing i2c_init_raw() signature
+ func_table = board->adv_func;
+ return mraa_i2c_init_raw((unsigned int) board->i2c_bus[bus].bus_id);
}
mraa_i2c_context
mraa_i2c_init_raw(unsigned int bus)
{
- if (advance_func->i2c_init_pre != NULL) {
- if (advance_func->i2c_init_pre(bus) != MRAA_SUCCESS)
- return NULL;
- }
mraa_i2c_context dev = (mraa_i2c_context) malloc(sizeof(struct _i2c));
if (dev == NULL) {
syslog(LOG_CRIT, "i2c: Failed to allocate memory for context");
return NULL;
}
-
- char filepath[32];
+
+ dev->func_table = func_table;
dev->busnum = bus;
- snprintf(filepath, 32, "/dev/i2c-%u", bus);
- if ((dev->fh = open(filepath, O_RDWR)) < 1) {
- syslog(LOG_ERR, "i2c: Failed to open requested i2c port %s", filepath);
+
+ if (IS_FUNC_DEFINED(dev, i2c_init_pre)) {
+ if (func_table->i2c_init_pre(bus) != MRAA_SUCCESS)
+ return NULL;
}
- syslog(LOG_DEBUG, "i2c: Opened i2c bus %s", filepath);
+ if (!IS_FUNC_DEFINED(dev, i2c_init_bus_replace)) {
+ char filepath[32];
+ snprintf(filepath, 32, "/dev/i2c-%u", bus);
+ if ((dev->fh = open(filepath, O_RDWR)) < 1) {
+ syslog(LOG_ERR, "i2c: Failed to open requested i2c port %s", filepath);
+ }
+ syslog(LOG_DEBUG, "i2c: Opened i2c bus %s", filepath);
- if (ioctl(dev->fh, I2C_FUNCS, &dev->funcs) < 0) {
- syslog(LOG_CRIT, "i2c: Failed to get I2C_FUNC map from device");
- dev->funcs = 0;
+ if (ioctl(dev->fh, I2C_FUNCS, &dev->funcs) < 0) {
+ syslog(LOG_CRIT, "i2c: Failed to get I2C_FUNC map from device");
+ dev->funcs = 0;
+ }
+ } else {
+ if (dev->func_table->i2c_init_bus_replace(dev) != MRAA_SUCCESS) {
+ free(dev);
+ return NULL;
+ }
}
- if (advance_func->i2c_init_post != NULL) {
- mraa_result_t ret = advance_func->i2c_init_post(dev);
+ if (IS_FUNC_DEFINED(dev, i2c_init_post)) {
+ mraa_result_t ret = dev->func_table->i2c_init_post(dev);
if (ret != MRAA_SUCCESS) {
free(dev);
return NULL;
mraa_result_t
mraa_i2c_frequency(mraa_i2c_context dev, mraa_i2c_mode_t mode)
{
- if (advance_func->i2c_set_frequency_replace != NULL) {
- return advance_func->i2c_set_frequency_replace(dev, mode);
+ if (IS_FUNC_DEFINED(dev, i2c_set_frequency_replace)) {
+ return dev->func_table->i2c_set_frequency_replace(dev, mode);
}
return MRAA_ERROR_FEATURE_NOT_SUPPORTED;
}
int
mraa_i2c_read(mraa_i2c_context dev, uint8_t* data, int length)
{
- // this is the read(3) syscall not mraa_i2c_read()
- if (read(dev->fh, data, length) == length) {
- return length;
- }
- return 0;
+ int bytes_read = 0;
+ if (!IS_FUNC_DEFINED(dev, i2c_read_replace)) {
+ // this is the read(3) syscall not mraa_i2c_read()
+ bytes_read = read(dev->fh, data, length);
+ } else
+ bytes_read = dev->func_table->i2c_read_replace(dev, data, length);
+ if (bytes_read == length)
+ return length;
+ else
+ return 0;
}
uint8_t
mraa_result_t
mraa_i2c_write_byte(mraa_i2c_context dev, const uint8_t data)
{
- if (mraa_i2c_smbus_access(dev->fh, I2C_SMBUS_WRITE, data, I2C_SMBUS_BYTE, NULL) < 0) {
- syslog(LOG_ERR, "i2c: Failed to write");
- return MRAA_ERROR_INVALID_HANDLE;
- }
- return MRAA_SUCCESS;
+ if (!IS_FUNC_DEFINED(dev, i2c_write_byte_replace)) {
+ if (mraa_i2c_smbus_access(dev->fh, I2C_SMBUS_WRITE, data, I2C_SMBUS_BYTE, NULL) < 0) {
+ syslog(LOG_ERR, "i2c: Failed to write");
+ return MRAA_ERROR_INVALID_HANDLE;
+ }
+ return MRAA_SUCCESS;
+ } else
+ return dev->func_table->i2c_write_byte_replace(dev, data);
}
mraa_result_t
mraa_i2c_address(mraa_i2c_context dev, uint8_t addr)
{
dev->addr = (int) addr;
- if (ioctl(dev->fh, I2C_SLAVE_FORCE, addr) < 0) {
- syslog(LOG_ERR, "i2c: Failed to set slave address %d", addr);
- return MRAA_ERROR_INVALID_HANDLE;
- }
- return MRAA_SUCCESS;
+ if (dev->func_table->i2c_init_bus_replace == NULL) {
+ if (ioctl(dev->fh, I2C_SLAVE_FORCE, addr) < 0) {
+ syslog(LOG_ERR, "i2c: Failed to set slave address %d", addr);
+ return MRAA_ERROR_INVALID_HANDLE;
+ }
+ return MRAA_SUCCESS;
+ } else
+ return dev->func_table->i2c_address_replace(dev, addr);
}
mraa_result_t
Py_InitializeEx(0);
PyEval_InitThreads();
#endif
+
advance_func = (mraa_adv_func_t*) malloc(sizeof(mraa_adv_func_t));
memset(advance_func, 0, sizeof(mraa_adv_func_t));
-#if defined(X86PLAT)
+#ifdef X86PLAT
// Use runtime x86 platform detection
platform_type = mraa_x86_platform();
-#elif defined(ARMPLAT)
+#ifdef USBPLAT
+ // This is a platform extender so create null base platform if one doesn't already exist
+ if (plat == NULL) {
+ plat = (mraa_board_t*) calloc(1, sizeof(mraa_board_t));
+ plat->platform_name = "Null platform";
+ if (plat != NULL) {
+ int usb_platform_type = mraa_usb_platform_extender(plat);
+ if (platform_type == MRAA_UNKNOWN_PLATFORM)
+ platform_type = usb_platform_type;
+ }
+ }
+#endif
+
+#if defined(ARMPLAT)
// Use runtime ARM platform detection
platform_type = mraa_arm_platform();
-#else
-#error mraa_ARCH NOTHING
#endif
if (plat == NULL) {
return MRAA_ERROR_PLATFORM_NOT_INITIALISED;
}
- syslog(LOG_INFO, "libmraa initialised for platform '%s' of type %d", mraa_get_platform_name(), platform_type);
+ syslog(LOG_NOTICE, "libmraa initialised for platform '%s' of type %d", mraa_get_platform_name(), platform_type);
return MRAA_SUCCESS;
}
return (char*) plat->pins[pin].name;
}
+int
+mraa_get_default_i2c_bus()
+{
+ if (plat == NULL) {
+ return -1;
+ } else
+ return plat->def_i2c_bus;
+}
+
+
+
mraa_boolean_t
mraa_file_exist(const char* filename)
{
--- /dev/null
+message (INFO " - Adding USB platforms")
+set (mraa_LIB_SRCS_NOAUTO ${mraa_LIB_SRCS_NOAUTO}
+ ${PROJECT_SOURCE_DIR}/src/usb/usb.c
+ ${PROJECT_SOURCE_DIR}/src/usb/ftdi_ft4222.c
+ PARENT_SCOPE
+)
+
--- /dev/null
+/*
+ * Author: Henry Bruce <henry.bruce@intel.com>
+ * Copyright (c) 2015 Intel Corporation.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include "linux/i2c-dev.h"
+#include "common.h"
+#include "ftd2xx.h"
+#include "libft4222.h"
+#include "usb/ftdi_ft4222.h"
+
+#define PLATFORM_NAME "FTDI FT4222"
+#define I2CM_ERROR(status) (((status) & 0x02) != 0)
+
+
+static FT_HANDLE ftHandle = (FT_HANDLE)NULL;
+static int bus_speed = 400;
+
+
+mraa_result_t
+mraa_ftdi_ft4222_init()
+{
+ mraa_result_t mraaStatus = MRAA_SUCCESS;
+ FT_STATUS ftStatus;
+ FT_DEVICE_LIST_INFO_NODE *devInfo = NULL;
+ DWORD numDevs = 0;
+ int i;
+ int retCode = 0;
+
+ ftStatus = FT_CreateDeviceInfoList(&numDevs);
+ if (ftStatus != FT_OK)
+ {
+ syslog(LOG_ERR, "FT_CreateDeviceInfoList failed: error code %d\n", ftStatus);
+ mraaStatus = MRAA_ERROR_NO_RESOURCES;
+ goto init_exit;
+ }
+
+ if (numDevs == 0)
+ {
+ syslog(LOG_ERR, "No FT4222 devices connected.\n");
+ goto init_exit;
+ }
+
+ devInfo = calloc((size_t)numDevs, sizeof(FT_DEVICE_LIST_INFO_NODE));
+ if (devInfo == NULL)
+ {
+ syslog(LOG_ERR, "FT4222 allocation failure.\n");
+ mraaStatus = MRAA_ERROR_NO_RESOURCES;
+ goto init_exit;
+ }
+
+ ftStatus = FT_GetDeviceInfoList(devInfo, &numDevs);
+ if (ftStatus != FT_OK)
+ {
+ syslog(LOG_ERR, "FT_GetDeviceInfoList failed (error code %d)\n", (int)ftStatus);
+ mraaStatus = MRAA_ERROR_NO_RESOURCES;
+ goto init_exit;
+ }
+
+ syslog(LOG_INFO, "FT_GetDeviceInfoList returned %d devices\n", numDevs);
+ DWORD locationId;
+ int bus = 0;
+ if (numDevs > bus && devInfo[bus].Type == FT_DEVICE_4222H_3) {
+ locationId = devInfo[bus].LocId;
+ } else {
+ syslog(LOG_ERR, "FT_GetDeviceInfoList contains no valid devices\n");
+ mraaStatus = MRAA_ERROR_NO_RESOURCES;
+ goto init_exit;
+ }
+
+ ftStatus = FT_OpenEx((PVOID)(uintptr_t)locationId, FT_OPEN_BY_LOCATION, &ftHandle);
+ if (ftStatus != FT_OK)
+ {
+ syslog(LOG_ERR, "FT_OpenEx failed (error %d)\n", (int)ftStatus);
+ mraaStatus = MRAA_ERROR_NO_RESOURCES;
+ goto init_exit;
+ }
+
+init_exit:
+ if (devInfo != NULL);
+ free(devInfo);
+ if (mraaStatus == MRAA_SUCCESS)
+ syslog(LOG_NOTICE, "mraa_ftdi_ft4222_init completed successfully\n");
+ return mraaStatus;
+}
+
+
+mraa_result_t
+mraa_ftdi_ft4222_get_version(unsigned int* versionChip, unsigned int* versionLib)
+{
+ if (ftHandle != NULL) {
+ FT4222_Version ft4222Version;
+ FT4222_STATUS ft4222Status = FT4222_GetVersion(ftHandle, &ft4222Version);
+ if (FT4222_OK == ft4222Status){
+ *versionChip = (unsigned int)ft4222Version.chipVersion;
+ *versionLib = (unsigned int)ft4222Version.dllVersion;
+ syslog(LOG_NOTICE, "FT4222_GetVersion %08X %08X\n", *versionChip, *versionLib);
+ return MRAA_SUCCESS;
+ } else {
+ syslog(LOG_ERR, "libmraa: FT4222_GetVersion failed (error %d)\n", (int)ft4222Status);
+ return MRAA_ERROR_NO_RESOURCES;
+ }
+ } else {
+ syslog(LOG_ERR, "libmraa: bad FT4222 handle\n");
+ return MRAA_ERROR_INVALID_HANDLE;
+ }
+}
+
+
+mraa_i2c_context
+mraa_ftdi_ft4222_i2c_init_raw(unsigned int bus)
+{
+ // Tell the FT4222 to be an I2C Master.
+ FT4222_STATUS ft4222Status = FT4222_I2CMaster_Init(ftHandle, bus_speed);
+ if (FT4222_OK != ft4222Status)
+ {
+ syslog(LOG_ERR, "FT4222_I2CMaster_Init failed (error %d)!\n", ft4222Status);
+ return NULL;
+ }
+
+ // Reset the I2CM registers to a known state.
+ ft4222Status = FT4222_I2CMaster_Reset(ftHandle);
+ if (FT4222_OK != ft4222Status)
+ {
+ syslog(LOG_ERR, "FT4222_I2CMaster_Reset failed (error %d)!\n", ft4222Status);
+ return NULL;
+ }
+
+ mraa_i2c_context dev = (mraa_i2c_context) malloc(sizeof(struct _i2c));
+ if (dev == NULL) {
+ syslog(LOG_CRIT, "i2c: Failed to allocate memory for context");
+ return NULL;
+ }
+
+ dev->handle = ftHandle;
+ dev->fh = -1; // We don't use file descriptors
+ dev->funcs = I2C_FUNC_I2C; // Advertise minimal i2c support as per https://www.kernel.org/doc/Documentation/i2c/functionality
+ return dev;
+}
+
+static mraa_result_t
+mraa_ftdi_ft4222_i2c_init_bus_replace(mraa_i2c_context dev)
+{
+ // Tell the FT4222 to be an I2C Master.
+ FT4222_STATUS ft4222Status = FT4222_I2CMaster_Init(ftHandle, 400);
+ if (FT4222_OK != ft4222Status)
+ {
+ syslog(LOG_ERR, "FT4222_I2CMaster_Init failed (error %d)!\n", ft4222Status);
+ return MRAA_ERROR_NO_RESOURCES;
+ }
+
+ // Reset the I2CM registers to a known state.
+ ft4222Status = FT4222_I2CMaster_Reset(ftHandle);
+ if (FT4222_OK != ft4222Status)
+ {
+ syslog(LOG_ERR, "FT4222_I2CMaster_Reset failed (error %d)!\n", ft4222Status);
+ return MRAA_ERROR_NO_RESOURCES;
+ }
+
+ dev->handle = ftHandle;
+ dev->fh = -1; // We don't use file descriptors
+ dev->funcs = I2C_FUNC_I2C; // Advertise minimal i2c support as per https://www.kernel.org/doc/Documentation/i2c/functionality
+ return MRAA_SUCCESS;
+}
+
+
+static mraa_result_t
+mraa_ftdi_ft4222_i2c_frequency(mraa_i2c_context dev, mraa_i2c_mode_t mode)
+{
+ return MRAA_ERROR_FEATURE_NOT_SUPPORTED;
+}
+
+
+static mraa_result_t
+mraa_ftdi_ft4222_i2c_address(mraa_i2c_context dev, uint8_t addr)
+{
+ dev->addr = (int) addr;
+ return FT4222_I2CMaster_Init(ftHandle, bus_speed) == FT4222_OK ? MRAA_SUCCESS : MRAA_ERROR_NO_RESOURCES;
+}
+
+
+static int
+mraa_ftdi_ft4222_i2c_read(mraa_i2c_context dev, uint8_t* data, int length)
+{
+ uint16 bytesRead = 0;
+ uint8 controllerStatus;
+ syslog(LOG_NOTICE, "FT4222_I2CMaster_Read(%02X, %d)", dev->addr, length);
+ FT4222_STATUS ft4222Status = FT4222_I2CMaster_Read(dev->handle, dev->addr, data, length, &bytesRead);
+ ft4222Status = FT4222_I2CMaster_GetStatus(ftHandle, &controllerStatus);
+ if (FT4222_OK != ft4222Status || I2CM_ERROR(controllerStatus))
+ {
+ syslog(LOG_ERR, "FT4222_I2CMaster_Read failed (error %d)\n", (int)ft4222Status);
+ return 0;
+ }
+ return bytesRead;
+}
+
+static uint8_t
+mraa_ftdi_ft4222_i2c_read_byte(mraa_i2c_context dev)
+{
+ return 0;
+}
+
+static uint8_t
+mraa_ftdi_ft4222_i2c_read_byte_data(mraa_i2c_context dev, uint8_t command)
+{
+ return 0;
+}
+
+static uint16_t
+mraa_ftdi_ft4222_i2c_read_word_data(mraa_i2c_context dev, uint8_t command)
+{
+ return 0;
+}
+
+static int
+mraa_ftdi_ft4222_i2c_read_bytes_data(mraa_i2c_context dev, uint8_t command, uint8_t* data, int length)
+{
+ return -1;
+}
+
+
+static mraa_result_t
+mraa_ftdi_ft4222_i2c_write(mraa_i2c_context dev, const uint8_t* data, int bytesToWrite)
+{
+ uint16 bytesWritten = 0;
+ uint8 controllerStatus;
+ syslog(LOG_NOTICE, "FT4222_I2CMaster_Write(%#02X, %#02X, %d)", dev->addr, *data, bytesToWrite);
+ FT4222_STATUS ft4222Status = FT4222_I2CMaster_Write(dev->handle, dev->addr, (uint8_t*)data, bytesToWrite, &bytesWritten);
+ ft4222Status = FT4222_I2CMaster_GetStatus(ftHandle, &controllerStatus);
+ if (FT4222_OK != ft4222Status || I2CM_ERROR(controllerStatus))
+ {
+ syslog(LOG_ERR, "FT4222_I2CMaster_Write failed (error %d)\n", (int)ft4222Status);
+ return MRAA_ERROR_INVALID_HANDLE;
+ }
+
+ if (bytesWritten != bytesToWrite)
+ syslog(LOG_ERR, "FT4222_I2CMaster_Write wrote %u of %u bytes.\n", bytesWritten, bytesToWrite);
+
+ return bytesToWrite == bytesWritten ? MRAA_SUCCESS : MRAA_ERROR_INVALID_HANDLE;
+}
+
+
+static mraa_result_t
+mraa_ftdi_ft4222_i2c_write_byte(mraa_i2c_context dev, uint8_t data)
+{
+ return mraa_ftdi_ft4222_i2c_write(dev, &data, 1);
+}
+
+static mraa_result_t
+mraa_ftdi_ft4222_i2c_write_byte_data(mraa_i2c_context dev, const uint8_t data, const uint8_t command)
+{
+ mraa_result_t status = mraa_ftdi_ft4222_i2c_write_byte(dev, command);
+ if (status == MRAA_SUCCESS)
+ return mraa_ftdi_ft4222_i2c_write_byte(dev, data);
+ else
+ return status;
+}
+
+static mraa_result_t
+mraa_ftdi_ft4222_i2c_write_word_data(mraa_i2c_context dev, const uint16_t data, const uint8_t command)
+{
+ mraa_result_t status = mraa_ftdi_ft4222_i2c_write_byte(dev, command);
+ if (status == MRAA_SUCCESS)
+ return mraa_ftdi_ft4222_i2c_write(dev, (const uint8_t*)&data, 2);
+ else
+ return status;
+
+}
+
+static mraa_result_t
+mraa_ftdi_ft4222_i2c_stop(mraa_i2c_context dev)
+{
+ return MRAA_SUCCESS;
+}
+
+
+
+
+mraa_adv_func_t*
+mraa_i2c_ft4222_create_func_table()
+{
+ mraa_adv_func_t* func_table = (mraa_adv_func_t*) calloc(1, sizeof(mraa_adv_func_t));
+ if (func_table != NULL) {
+ // func_table->i2c_init_raw_replace = &mraa_ftdi_ft4222_i2c_init_raw;
+ func_table->i2c_init_bus_replace = &mraa_ftdi_ft4222_i2c_init_bus_replace;
+ func_table->i2c_set_frequency_replace = &mraa_ftdi_ft4222_i2c_frequency;
+ func_table->i2c_address_replace = &mraa_ftdi_ft4222_i2c_address;
+ func_table->i2c_read_replace = &mraa_ftdi_ft4222_i2c_read;
+ func_table->i2c_read_byte_replace = &mraa_ftdi_ft4222_i2c_read_byte;
+ func_table->i2c_read_byte_data_replace = &mraa_ftdi_ft4222_i2c_read_byte_data;
+ func_table->i2c_read_word_data_replace = &mraa_ftdi_ft4222_i2c_read_word_data;
+ func_table->i2c_read_bytes_data_replace = &mraa_ftdi_ft4222_i2c_read_bytes_data;
+ func_table->i2c_write_replace = &mraa_ftdi_ft4222_i2c_write;
+ func_table->i2c_write_byte_replace = &mraa_ftdi_ft4222_i2c_write_byte;
+ func_table->i2c_write_byte_data_replace = &mraa_ftdi_ft4222_i2c_write_byte_data;
+ func_table->i2c_write_word_data_replace = &mraa_ftdi_ft4222_i2c_write_word_data;
+ func_table->i2c_stop_replace = &mraa_ftdi_ft4222_i2c_stop;
+ }
+ return func_table;
+}
+
+mraa_board_t*
+mraa_ftdi_ft4222(mraa_board_t* board)
+{
+ if (plat == NULL)
+ return NULL;
+ mraa_board_t* sub_plat = (mraa_board_t*) calloc(1, sizeof(mraa_board_t));
+ if (sub_plat == NULL)
+ return NULL;
+ int pinIndex = 0;
+ int numUsbGpio = 0;
+ int numUsbPins = numUsbGpio + 2; // Add SDA and SCL
+ sub_plat->platform_name = PLATFORM_NAME;
+ sub_plat->phy_pin_count = numUsbPins;
+ sub_plat->gpio_count = numUsbGpio;
+ mraa_pininfo_t* pins = (mraa_pininfo_t*) malloc(sizeof(mraa_pininfo_t) * numUsbPins);
+ if (pins == NULL) {
+ return NULL;
+ }
+ sub_plat->pins = pins;
+
+ // Virtual gpio pins on i2c I/O expander.
+ mraa_pincapabilities_t pinCapsGpio = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 0, 0, 0 };
+ for (pinIndex=0; pinIndex < numUsbGpio; ++pinIndex) {
+ char name[8];
+ sprintf(name, "Pin%d", pinIndex);
+ strncpy(sub_plat->pins[pinIndex].name, name, 8);
+ sub_plat->pins[pinIndex].capabilites = pinCapsGpio;
+ }
+
+ int bus = 0;
+ sub_plat->i2c_bus_count = 1;
+ sub_plat->def_i2c_bus = bus;
+ sub_plat->i2c_bus[bus].bus_id = bus;
+ // sub_plat->i2c_bus[bus].drv_type = drv_type;
+
+ // i2c pins (these are virtual, entries are required to configure i2c layer)
+ mraa_pincapabilities_t pinCapsI2c = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 1, 0, 0 };
+ strncpy(sub_plat->pins[pinIndex].name, "SDA", 8);
+ sub_plat->pins[pinIndex].capabilites = pinCapsI2c;
+ sub_plat->pins[pinIndex].i2c.mux_total = 0;
+ sub_plat->i2c_bus[bus].sda = pinIndex;
+ pinIndex++;
+ strncpy(sub_plat->pins[pinIndex].name, "SCL", 8);
+ sub_plat->pins[pinIndex].capabilites = pinCapsI2c;
+ sub_plat->pins[pinIndex].i2c.mux_total = 0;
+ sub_plat->i2c_bus[bus].scl = pinIndex;
+
+ // Set override functions
+ sub_plat->adv_func = mraa_i2c_ft4222_create_func_table();
+
+ board->sub_platform = sub_plat;
+ return sub_plat;
+}
+
--- /dev/null
+/*
+ * Author: Henry Bruce <henry.bruce@intel.com>
+ * Copyright (c) 2015 Intel Corporation.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "mraa_internal.h"
+#include "usb/ftdi_ft4222.h"
+
+
+mraa_platform_t
+mraa_usb_platform_extender(mraa_board_t* board)
+{
+ mraa_platform_t platform_type = MRAA_UNKNOWN_PLATFORM;
+ if (mraa_ftdi_ft4222_init() == MRAA_SUCCESS) {
+ unsigned int versionChip, versionLib;
+ if (mraa_ftdi_ft4222_get_version(&versionChip, &versionLib) == MRAA_SUCCESS) {
+ // TODO: Add ft4222 version checks
+ platform_type = MRAA_FTDI_FT4222;
+ }
+ }
+ switch (platform_type) {
+ case MRAA_FTDI_FT4222:
+ mraa_ftdi_ft4222(board);
+ break;
+ default:
+ syslog(LOG_ERR, "Unknown USB Platform Extender, currently not supported by MRAA");
+ }
+ return platform_type;
+}
mraa_board_t*
mraa_intel_edison_fab_c()
{
- mraa_board_t* b = (mraa_board_t*) malloc(sizeof(mraa_board_t));
+ // mraa_board_t* b = (mraa_board_t*) malloc(sizeof(mraa_board_t));
+ mraa_board_t* b = (mraa_board_t*) calloc(1, sizeof(mraa_board_t));
if (b == NULL) {
return NULL;
}
projects / contrib / mraa.git / commitdiff