m4api.c File Reference

#include <stdio.h>
#include <usb.h>
#include "m4atx_battery_monitor/m4api.h"

Include dependency graph for m4api.c:

Go to the source code of this file.

Defines
#define	PRODUCT   0xd001
#define	READ_ENDPOINT   0x81
#define	TIMEOUT   3000
#define	VENDOR   0x04d8
#define	WRITE_ENDPOINT   0x01
Functions
int	m4CheckVersion (char *buf)
int	m4ConfigField (char const *name)
int	m4FetchDiag (usb_dev_handle *dev, char *buf)
int	m4GetConfig (usb_dev_handle *dev, struct m4ConfigField *field, char *buf)
int	m4GetDiag (usb_dev_handle *dev, struct m4Diagnostics *diag)
int	m4GetFloat (usb_dev_handle *dev, enum m4FieldID fid, float *out)
int	m4GetInteger (usb_dev_handle *dev, enum m4FieldID fid, int *out)
float	m4GetVal (enum m4Type type, char *posn)
usb_dev_handle *	m4Init ()
static usb_dev_handle *	m4InitUSB ()
int	m4ParseValue (enum m4Type type, char const *strval, char *buf)
void	m4PrintDiag (char *buf)
void	m4PrintVal (enum m4Type type, float val)
int	m4Read (usb_dev_handle *dev, unsigned char *buf, unsigned int len, int timeout)
int	m4SetBinary (usb_dev_handle *dev, struct m4ConfigField *field, char const *val)
int	m4SetConfig (usb_dev_handle *dev, struct m4ConfigField *field, char const *strval)
int	m4SetFloat (usb_dev_handle *dev, enum m4FieldID fid, float val)
int	m4SetInteger (usb_dev_handle *dev, enum m4FieldID fid, int val)
int	m4Write (usb_dev_handle *dev, unsigned char *buf, unsigned int len, int timeout)
Variables
struct m4ConfigField	m4ConfigFields [47]
struct m4Version	m4CurrentVersion
struct m4DiagField	m4DiagFields [6]
size_t	m4NumDiagFields = sizeof(m4DiagFields) / sizeof(m4DiagFields[0])
static float *	m4TypeConversions = NULL
static float	m4TypeConversionsV1 [13]
static float	m4TypeConversionsV2 [13]
char *	m4TypeDescs [14]
static int	m4TypeForms [13]
static size_t	m4TypeLengths [13]

---

Define Documentation

#define PRODUCT   0xd001

Definition at line 128 of file m4api.c.

#define READ_ENDPOINT   0x81

Definition at line 129 of file m4api.c.

#define TIMEOUT   3000

Definition at line 131 of file m4api.c.

#define VENDOR   0x04d8

Definition at line 127 of file m4api.c.

#define WRITE_ENDPOINT   0x01

Definition at line 130 of file m4api.c.

---

Function Documentation

int m4CheckVersion

(

char *

buf

)

Definition at line 239 of file m4api.c.

int m4ConfigField

(

char const *

name

)

Definition at line 500 of file m4api.c.

int m4FetchDiag	(	usb_dev_handle *	dev,
		char *	buf
	)

Definition at line 224 of file m4api.c.

int m4GetConfig	(	usb_dev_handle *	dev,
		struct m4ConfigField *	field,
		char *	buf
	)

Definition at line 335 of file m4api.c.

int m4GetDiag	(	usb_dev_handle *	dev,
		struct m4Diagnostics *	diag
	)

Definition at line 250 of file m4api.c.

int m4GetFloat	(	usb_dev_handle *	dev,
		enum m4FieldID	fid,
		float *	out
	)

Definition at line 389 of file m4api.c.

int m4GetInteger	(	usb_dev_handle *	dev,
		enum m4FieldID	fid,
		int *	out
	)

Definition at line 423 of file m4api.c.

float m4GetVal	(	enum m4Type	type,
		char *	posn
	)

Definition at line 267 of file m4api.c.

usb_dev_handle* m4Init

(

)

[read]

Definition at line 200 of file m4api.c.

static usb_dev_handle* m4InitUSB

(

)

[static]

Definition at line 134 of file m4api.c.

int m4ParseValue	(	enum m4Type	type,
		char const *	strval,
		char *	buf
	)

Definition at line 353 of file m4api.c.

void m4PrintDiag

(

char *

buf

)

Definition at line 487 of file m4api.c.

void m4PrintVal	(	enum m4Type	type,
		float	val
	)

Definition at line 303 of file m4api.c.

int m4Read	(	usb_dev_handle *	dev,
		unsigned char *	buf,
		unsigned int	len,
		int	timeout
	)

Definition at line 191 of file m4api.c.

int m4SetBinary	(	usb_dev_handle *	dev,
		struct m4ConfigField *	field,
		char const *	val
	)

Definition at line 465 of file m4api.c.

int m4SetConfig	(	usb_dev_handle *	dev,
		struct m4ConfigField *	field,
		char const *	strval
	)

Definition at line 456 of file m4api.c.

int m4SetFloat	(	usb_dev_handle *	dev,
		enum m4FieldID	fid,
		float	val
	)

Definition at line 403 of file m4api.c.

int m4SetInteger	(	usb_dev_handle *	dev,
		enum m4FieldID	fid,
		int	val
	)

Definition at line 437 of file m4api.c.

int m4Write	(	usb_dev_handle *	dev,
		unsigned char *	buf,
		unsigned int	len,
		int	timeout
	)

Definition at line 195 of file m4api.c.

---

Variable Documentation

struct m4ConfigField m4ConfigFields[47]

Definition at line 76 of file m4api.c.

struct m4Version m4CurrentVersion

Initial value:

 {
    .major = 0,
    .minor = 0,
}

Definition at line 46 of file m4api.c.

struct m4DiagField m4DiagFields[6]

Initial value:

 {
  {M4_VLT_12_11, 2, "VIN", "Input voltage"},
  {M4_VLT_12_11, 3, "IGN", "Ignition voltage"},
  {M4_VLT_33_01, 4, "33V", "Voltage on 3.3V rail"},
  {M4_VLT_5_03, 5, "5V", "Voltage on 5V rail"},
  {M4_VLT_12_07, 6, "12V", "Voltage on 12V rail"},
  {M4_DEG, 12, "TEMP", "Temperature"},
}

Definition at line 65 of file m4api.c.

size_t m4NumDiagFields = sizeof(m4DiagFields) / sizeof(m4DiagFields[0])

Definition at line 74 of file m4api.c.

float* m4TypeConversions = NULL [static]

Definition at line 44 of file m4api.c.

float m4TypeConversionsV1[13] [static]

Initial value:

 {
 0.1123, 0.076625, 0.0375, 0.0188136,
 1.0, 1.0, 1.0, 1.0,
 10.0, 10.0, 1.0, 1.0,
 1.0
}

Definition at line 29 of file m4api.c.

float m4TypeConversionsV2[13] [static]

Initial value:

 {
 0.1572, 0.1165, 0.0389, 0.0195,
 1.0, 1.0, 1.0, 1.0,
 10.0, 10.0, 1.0, 1.0,
 1.0
}

Definition at line 37 of file m4api.c.

char* m4TypeDescs[14]

Initial value:

 {
  "V", "V", "V", "V",
  "deg. C", "sec", "ms", "ms",
  "ms", "ms", "", "tries",
  ""
}

Definition at line 58 of file m4api.c.

int m4TypeForms[13] [static]

Initial value:

 {
 M4_FLOAT, M4_FLOAT, M4_FLOAT, M4_FLOAT,
 M4_INTEG, M4_INTEG, M4_INTEG, M4_INTEG,
 M4_INTEG, M4_INTEG, M4_TIMER, M4_INTEG,
 M4_INTEG
}

Definition at line 51 of file m4api.c.

size_t m4TypeLengths[13] [static]

Initial value:

 {
 1, 1, 1, 1, 1, 1, 1, 2,
 1, 2, 2, 1, 1
}

Definition at line 24 of file m4api.c.