#pragma once
+#include <stdint.h>
#include "types.h"
#define MRAA_PLATFORM_NAME_MAX_SIZE 64
#define MRAA_SUB_PLATFORM_BIT_SHIFT 9
#define MRAA_SUB_PLATFORM_MASK (1<<MRAA_SUB_PLATFORM_BIT_SHIFT)
+#define MRAA_MAIN_PLATFORM_OFFSET 0
+#define MRAA_SUB_PLATFORM_OFFSET 1
/** @file
unsigned int mraa_adc_raw_bits();
/**
+ * Check the specified board's bit size when reading the value
+ *
+ * @param specified platform offset; 0 for main platform, 1 foor sub platform
+ * @return raw bits being read from kernel module. zero if no ADC
+ */
+unsigned int mraa_get_platform_adc_raw_bits(uint8_t platform_offset);
+
+/**
* Return value that the raw value should be shifted to. Zero if no ADC
*
* @return return actual bit size the adc value should be understood as.
unsigned int mraa_adc_supported_bits();
/**
+ * Return value that the raw value should be shifted to. Zero if no ADC
+ *
+ * @param specified platform offset; 0 for main platform, 1 foor sub platform
+ * @return return actual bit size the adc value should be understood as.
+ */
+unsigned int mraa_get_platform_adc_supported_bits(int platform_offset);
+
+/**
* Sets the log level to use from 0-7 where 7 is very verbose. These are the
* syslog log levels, see syslog(3) for more information on the levels.
*
mraa_platform_t mraa_get_platform_type();
/**
+ * Get combined platform type, board must be initialised.
+ * The combined type is represented as
+ * (sub_platform_type << 8) | main_platform_type
+ *
+ * @return int combined platform type
+ */
+int mraa_get_platform_combined_type();
+
+/**
* Get platform pincount, board must be initialised.
*
* @return uint of physical pin count on the in-use platform
int mraa_get_i2c_bus_id(unsigned int i2c_bus);
/**
+ * Get specified platform pincount, board must be initialised.
+ *
+ * @param specified platform offset; 0 for main platform, 1 foor sub platform
+ * @return uint of physical pin count on the in-use platform
+ */
+unsigned int mraa_get_platform_pin_count(uint8_t platform_offset);
+
+/**
* Get name of pin, board must be initialised.
*
* @param pin number
*
* @return int default i2c bus index
*/
-int mraa_get_default_2c_bus();
+int mraa_get_default_i2c_bus(uint8_t platform_offset);
/**
* Detect presence of sub platform.
/**
- * Select main platform for platform info calls.
- *
- * @return mraa_boolean_t 1 if main platform is available, 0 otherwise
- */
-mraa_boolean_t mraa_select_main_platform();
-
-/**
- * Select sub platform for platform info calls.
- *
- * @return mraa_boolean_t 1 if sub platform is available, 0 otherwise
- */
-mraa_boolean_t mraa_select_sub_platform();
-
-/**
- * Check if sub platform is currently available and selected for platform info calls.
- *
- * @return mraa_boolean_t 1 if sub platform is selected, 0 otherwise
- */
-mraa_boolean_t mraa_is_sub_platform_selected();
-
-/**
* Check if pin or bus id includes sub platform mask.
*
* @param int pin or bus number
#include "gpio.h"
#include "version.h"
+#define MAX_PLATFORM_NAME_LENGTH 128
mraa_board_t* plat = NULL;
-static mraa_board_t* current_plat = NULL;
+// static mraa_board_t* current_plat = NULL;
+
+static char platform_name[MAX_PLATFORM_NAME_LENGTH];
mraa_adv_func_t* advance_func;
const char*
if (plat == NULL) {
plat = (mraa_board_t*) calloc(1, sizeof(mraa_board_t));
if (plat != NULL) {
- plat->platform_type = MRAA_UNKNOWN_PLATFORM;
- plat->platform_name = "Unknown platform";
+ plat->platform_type = MRAA_NULL_PLATFORM;
+ plat->platform_name = "Null platform";
}
}
// Now detect sub platform
}
#endif
- current_plat = plat;
syslog(LOG_NOTICE, "libmraa initialised for platform '%s' of type %d", mraa_get_platform_name(), mraa_get_platform_type());
- if (mraa_has_sub_platform()) {
- mraa_select_sub_platform();
- syslog(LOG_NOTICE, "libmraa initialised for sub-platform '%s' of type %d", mraa_get_platform_name(), mraa_get_platform_type());
- mraa_select_main_platform();
- }
return MRAA_SUCCESS;
}
mraa_boolean_t
-mraa_select_main_platform()
+mraa_pin_mode_test(int pin, mraa_pinmodes_t mode)
{
- if (plat != NULL) {
- current_plat = plat;
- return 1;
- } else
+ if (plat == NULL)
return 0;
-}
-mraa_boolean_t
-mraa_select_sub_platform()
-{
- if (plat->sub_platform != NULL) {
+ mraa_board_t* current_plat = plat;
+ if (mraa_is_sub_platform_id(pin)) {
current_plat = plat->sub_platform;
- return 1;
- } else
- return 0;
-}
-
-mraa_boolean_t
-mraa_is_sub_platform_selected()
-{
- return (plat->sub_platform != NULL) && (current_plat == plat->sub_platform);
-}
+ if (current_plat == NULL) {
+ syslog(LOG_ERR, "mraa_pin_mode_test: Sub platform Not Initialised");
+ return 0;
+ }
+ pin = mraa_get_sub_platform_index(pin);
+ }
-mraa_boolean_t
-mraa_pin_mode_test(int pin, mraa_pinmodes_t mode)
-{
if (current_plat == NULL || current_plat->platform_type == MRAA_UNKNOWN_PLATFORM) {
return 0;
}
mraa_platform_t
mraa_get_platform_type()
{
- if (current_plat == NULL)
+ if (plat == NULL)
return MRAA_UNKNOWN_PLATFORM;
- return current_plat->platform_type;
+ return plat->platform_type;
}
-
+int
+mraa_get_platform_combined_type()
+{
+ int type = mraa_get_platform_type();
+ int sub_type = mraa_has_sub_platform() ? plat->sub_platform->platform_type : MRAA_UNKNOWN_PLATFORM;
+ return type | (sub_type << 8);
+}
unsigned int
mraa_adc_raw_bits()
{
- if (current_plat == NULL)
+ if (plat == NULL)
return 0;
- if (current_plat->aio_count == 0)
+ if (plat->aio_count == 0)
return 0;
- return current_plat->adc_raw;
+ return plat->adc_raw;
+}
+
+unsigned int
+mraa_get_platform_adc_raw_bits(uint8_t platform_offset)
+{
+ if (platform_offset == MRAA_MAIN_PLATFORM_OFFSET)
+ return mraa_adc_raw_bits();
+ else {
+ if (!mraa_has_sub_platform())
+ return 0;
+
+ if (plat->sub_platform->aio_count == 0)
+ return 0;
+
+ return plat->sub_platform->adc_raw;
+ }
}
+
unsigned int
mraa_adc_supported_bits()
{
- if (current_plat == NULL)
+ if (plat == NULL)
return 0;
- if (current_plat->aio_count == 0)
+ if (plat->aio_count == 0)
return 0;
- return current_plat->adc_supported;
+ return plat->adc_supported;
}
+unsigned int
+mraa_get_platform_adc_supported_bits(int platform_offset)
+{
+ if (platform_offset == MRAA_MAIN_PLATFORM_OFFSET)
+ return mraa_adc_supported_bits();
+ else {
+ if (!mraa_has_sub_platform())
+ return 0;
+
+ if (plat->sub_platform->aio_count == 0)
+ return 0;
+
+ return plat->sub_platform->adc_supported;
+ }
+}
+
+
char*
mraa_get_platform_name()
{
- if (current_plat == NULL) {
+ if (plat == NULL) {
return NULL;
}
- return (char*) current_plat->platform_name;
+ strncpy(platform_name, plat->platform_name, MAX_PLATFORM_NAME_LENGTH);
+ if (mraa_has_sub_platform()) {
+ strncat(platform_name, " + ", MAX_PLATFORM_NAME_LENGTH);
+ strncat(platform_name, plat->sub_platform->platform_name, MAX_PLATFORM_NAME_LENGTH);
+ }
+ return platform_name;
}
int
unsigned int
mraa_get_pin_count()
{
- if (current_plat == NULL) {
+ if (plat == NULL) {
return 0;
}
- return current_plat->phy_pin_count;
+ return plat->phy_pin_count;
}
+unsigned int
+mraa_get_platform_pin_count(uint8_t platform_offset)
+{
+ if (platform_offset == MRAA_MAIN_PLATFORM_OFFSET)
+ return mraa_get_pin_count();
+ else {
+ if (mraa_has_sub_platform())
+ return plat->sub_platform->phy_pin_count;
+ else
+ return 0;
+ }
+}
+
+
char*
mraa_get_pin_name(int pin)
{
- if (current_plat == NULL) {
- return NULL;
+ if (plat == NULL)
+ return 0;
+
+ mraa_board_t* current_plat = plat;
+ if (mraa_is_sub_platform_id(pin)) {
+ current_plat = plat->sub_platform;
+ if (current_plat == NULL) {
+ syslog(LOG_ERR, "mraa_get_pin_name: Sub platform Not Initialised");
+ return 0;
+ }
+ pin = mraa_get_sub_platform_index(pin);
}
+
if (pin > (current_plat->phy_pin_count - 1) || pin < 0)
return NULL;
return (char*) current_plat->pins[pin].name;
}
int
-mraa_get_default_i2c_bus()
+mraa_get_default_i2c_bus(uint8_t platform_offset)
{
- if (current_plat == NULL) {
+ if (plat == NULL)
return -1;
- } else
- return current_plat->def_i2c_bus;
+ if (platform_offset == MRAA_MAIN_PLATFORM_OFFSET) {
+ return plat->def_i2c_bus;
+ } else {
+ if (mraa_has_sub_platform())
+ return plat->sub_platform->def_i2c_bus;
+ else
+ return -1;
+ }
}
-
mraa_boolean_t
mraa_file_exist(const char* filename)
{