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WiringPi
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Merge branch 'develop' into GPIOAPI

pull/233/head
Manfred Wallner 6 months ago
parent
9044333c75 6ca817f645
commit
9452d3c0c3
No known key found for this signature in database GPG Key ID: BAAED4BD184146A9
6 changed files with 148 additions and 76 deletions
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  1. +51
    -9
      gpio/gpio.c
  2. +13
    -8
      wiringPi/mcp3422.c
  3. +5
    -1
      wiringPi/pcf8591.c
  4. +45
    -31
      wiringPi/pseudoPins.c
  5. +23
    -23
      wiringPi/wiringPi.c
  6. +11
    -4
      wiringPi/wiringSerial.c

+ 51
- 9
gpio/gpio.c View File

@@ -281,13 +281,33 @@ static void doLoad (int argc, char *argv [])
if (!moduleLoaded (module1))
{
sprintf (cmd, "%s %s%s", findExecutable (MODPROBE), module1, args1) ;
system (cmd) ;
int ret = system(cmd);
if (ret == -1) {
perror("Error executing command");
} else if (WIFEXITED(ret)) {
int exit_status = WEXITSTATUS(ret);
if (exit_status != 0) {
fprintf(stderr, "Command failed with exit status %d\n", exit_status);
}
} else {
fprintf(stderr, "Command terminated by signal\n");
}
}

if (!moduleLoaded (module2))
{
sprintf (cmd, "%s %s%s", findExecutable (MODPROBE), module2, args2) ;
system (cmd) ;
int ret = system(cmd);
if (ret == -1) {
perror("Error executing command");
} else if (WIFEXITED(ret)) {
int exit_status = WEXITSTATUS(ret);
if (exit_status != 0) {
fprintf(stderr, "Command failed with exit status %d\n", exit_status);
}
} else {
fprintf(stderr, "Command terminated by signal\n");
}
}

if (!moduleLoaded (module2))
@@ -341,13 +361,33 @@ static void doUnLoad (int argc, char *argv [])
if (moduleLoaded (module1))
{
sprintf (cmd, "%s %s", findExecutable (RMMOD), module1) ;
system (cmd) ;
int ret = system(cmd);
if (ret == -1) {
perror("Error executing command");
} else if (WIFEXITED(ret)) {
int exit_status = WEXITSTATUS(ret);
if (exit_status != 0) {
fprintf(stderr, "Command failed with exit status %d\n", exit_status);
}
} else {
fprintf(stderr, "Command terminated by signal\n");
}
}

if (moduleLoaded (module2))
{
sprintf (cmd, "%s %s", findExecutable (RMMOD), module2) ;
system (cmd) ;
int ret = system(cmd);
if (ret == -1) {
perror("Error executing command");
} else if (WIFEXITED(ret)) {
int exit_status = WEXITSTATUS(ret);
if (exit_status != 0) {
fprintf(stderr, "Command failed with exit status %d\n", exit_status);
}
} else {
fprintf(stderr, "Command terminated by signal\n");
}
}
}

@@ -416,15 +456,14 @@ static volatile int globalCounter ;

void printgpioflush(const char* text) {
if (gpioDebug) {
printf(text);
printf("%s", text);
fflush(stdout);
}
}

void printgpio(const char* text) {
if (gpioDebug) {
printf(text);
fflush(stdout);
printf("%s", text);
}
}

@@ -474,7 +513,7 @@ void doWfi (int argc, char *argv [])
exit (1) ;
}

printgpio("wait for interrupt function call \n");
printgpio("wait for interrupt function call\n");
for (int Sec=0; Sec<timeoutSec; ++Sec) {
printgpioflush(".");
delay (999);
@@ -1112,7 +1151,10 @@ static void doVersion (char *argv [])
{
if ((fd = fopen ("/proc/device-tree/model", "r")) != NULL)
{
fgets (name, 80, fd) ;
if (fgets(name, sizeof(name), fd) == NULL) {
// Handle error or end of file condition
perror("Error reading /proc/device-tree/model");
}
fclose (fd) ;
printf (" Model: %s\n", name) ;
}


+ 13
- 8
wiringPi/mcp3422.c View File

@@ -43,15 +43,20 @@
*********************************************************************************
*/

void waitForConversion (int fd, unsigned char *buffer, int n)
void waitForConversion(int fd, unsigned char *buffer, int n)
{
for (;;)
{
read (fd, buffer, n) ;
if ((buffer [n-1] & 0x80) == 0)
break ;
delay (1) ;
}
for (;;) {
ssize_t bytes_read = read(fd, buffer, n);
if (bytes_read != n) {
perror("Error reading from file descriptor");
return;
}
if ((buffer[n - 1] & 0x80) == 0)
break;
delay(1);
}
}

/*


+ 5
- 1
wiringPi/pcf8591.c View File

@@ -24,6 +24,7 @@
*/

#include <unistd.h>
#include <stdio.h>

#include "wiringPi.h"
#include "wiringPiI2C.h"
@@ -41,7 +42,10 @@ static void myAnalogWrite (struct wiringPiNodeStruct *node, UNU int pin, int val
unsigned char b [2] ;
b [0] = 0x40 ;
b [1] = value & 0xFF ;
write (node->fd, b, 2) ;
ssize_t bytes_written = write(node->fd, b, 2);
if (bytes_written != 2) {
perror("Error writing to file descriptor");
}
}




+ 45
- 31
wiringPi/pseudoPins.c View File

@@ -35,9 +35,12 @@
#define SHARED_NAME "wiringPiPseudoPins"
#define PSEUDO_PINS 64

#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <stdint.h>
#include <sys/stat.h>
#include <fcntl.h>

@@ -45,21 +48,20 @@

#include "pseudoPins.h"

static int myAnalogRead (struct wiringPiNodeStruct *node, int pin)
static int myAnalogRead(struct wiringPiNodeStruct *node, int pin)
{
int *ptr = (int *)node->data0 ;
int myPin = pin - node->pinBase ;
int *ptr = (int *)(intptr_t)node->data0; // Cast to intptr_t to handle pointer-to-integer conversion
int myPin = pin - node->pinBase;

return *(ptr + myPin) ;
return *(ptr + myPin);
}


static void myAnalogWrite (struct wiringPiNodeStruct *node, int pin, int value)
static void myAnalogWrite(struct wiringPiNodeStruct *node, int pin, int value)
{
int *ptr = (int *)node->data0 ;
int myPin = pin - node->pinBase ;
int *ptr = (int *)(intptr_t)node->data0;
int myPin = pin - node->pinBase;

*(ptr + myPin) = value ;
*(ptr + myPin) = value;
}


@@ -69,27 +71,39 @@ static void myAnalogWrite (struct wiringPiNodeStruct *node, int pin, int value)
*********************************************************************************
*/

int pseudoPinsSetup (const int pinBase)
{
struct wiringPiNodeStruct *node ;
void *ptr ;

node = wiringPiNewNode (pinBase, PSEUDO_PINS) ;

node->fd = shm_open (SHARED_NAME, O_CREAT | O_RDWR, 0666) ;

if (node->fd < 0)
return FALSE ;

if (ftruncate (node->fd, PSEUDO_PINS * sizeof (int)) < 0)
return FALSE ;

ptr = mmap (NULL, PSEUDO_PINS * sizeof (int), PROT_READ | PROT_WRITE, MAP_SHARED, node->fd, 0) ;

node->data0 = (unsigned int)ptr ;

node->analogRead = myAnalogRead ;
node->analogWrite = myAnalogWrite ;

return TRUE ;
int pseudoPinsSetup(const int pinBase)
{
struct wiringPiNodeStruct *node;
void *ptr;

node = wiringPiNewNode(pinBase, PSEUDO_PINS);
if (node == NULL) {
fprintf(stderr, "Error creating new wiringPi node");
return FALSE;
}

node->fd = shm_open(SHARED_NAME, O_CREAT | O_RDWR, 0666);
if (node->fd < 0) {
perror("Error opening shared memory");
return FALSE;
}

if (ftruncate(node->fd, PSEUDO_PINS * sizeof(int)) < 0) {
perror("Error resizing shared memory");
return FALSE;
}

ptr = mmap(NULL, PSEUDO_PINS * sizeof(int), PROT_READ | PROT_WRITE, MAP_SHARED, node->fd, 0);
if (ptr == MAP_FAILED) {
perror("Error mapping shared memory");
return FALSE;
}

node->data0 = (unsigned int)(uintptr_t)ptr;

node->analogRead = myAnalogRead;
node->analogWrite = myAnalogWrite;

return TRUE;
}

+ 23
- 23
wiringPi/wiringPi.c View File

@@ -558,8 +558,8 @@ int GetMaxPin() {
}


#define RETURN_ON_MODEL5 if (PI_MODEL_5 == RaspberryPiModel) { if (wiringPiDebug) printf("Function not supported on Pi5\n"); return; }
#define RETURN_ON_MODEL5 if (PI_MODEL_5 == RaspberryPiModel) { if (wiringPiDebug) printf("Function not supported on Pi5\n"); return; }
int FailOnModel5() {
if (PI_MODEL_5 == RaspberryPiModel) {
return wiringPiFailure (WPI_ALMOST, "Function not supported on Raspberry Pi 5.\n"
@@ -831,12 +831,12 @@ static void usingGpioMemCheck (const char *what)
void PrintSystemStdErr () {
struct utsname sys_info;
if (uname(&sys_info) == 0) {
fprintf (stderr, " wiringpi = %d.%d\n", VERSION_MAJOR, VERSION_MINOR);
fprintf (stderr, " system name = %s\n", sys_info.sysname);
//fprintf (stderr, " node name = %s\n", sys_info.nodename);
fprintf (stderr, " release = %s\n", sys_info.release);
fprintf (stderr, " version = %s\n", sys_info.version);
fprintf (stderr, " machine = %s\n", sys_info.machine);
fprintf (stderr, " WiringPi : %d.%d\n", VERSION_MAJOR, VERSION_MINOR);
fprintf (stderr, " system name : %s\n", sys_info.sysname);
//fprintf (stderr, " node name : %s\n", sys_info.nodename);
fprintf (stderr, " release : %s\n", sys_info.release);
fprintf (stderr, " version : %s\n", sys_info.version);
fprintf (stderr, " machine : %s\n", sys_info.machine);
if (strstr(sys_info.machine, "arm") == NULL && strstr(sys_info.machine, "aarch")==NULL) {
fprintf (stderr, " -> This is not an ARM architecture; it cannot be a Raspberry Pi.\n") ;
}
@@ -1200,16 +1200,16 @@ void setPadDrive (int group, int value)
if (PI_MODEL_5 == RaspberryPiModel) {
if (-1==group) {
printf ("Pad register:\n");
for (int pin=0, maxpin=GetMaxPin(); pin<=maxpin; ++pin) {
for (int pin=0, maxpin=GetMaxPin(); pin<=maxpin; ++pin) {
unsigned int drive = (pads[1+pin] & RP1_PAD_DRIVE_MASK)>>4;
printf (" Pin %2d: 0x%08X drive: 0x%d = %2dmA\n", pin, pads[1+pin], drive, 0==drive ? 2 : drive*4) ;
}
}
}
if (group !=0) { // only GPIO range @RP1
return ;
}
}
switch(value) {
default:
default:
/* bcm*/ // RP1
case 0: /* 2mA*/ value=0; break; // 2mA
case 1: /* 4mA*/
@@ -1220,9 +1220,9 @@ void setPadDrive (int group, int value)
case 6: /*14mA*/
case 7: /*16mA*/ value=3; break; //12mA
}
wrVal = (value << 4); //Drive strength 0-3
wrVal = (value << 4); //Drive strength 0-3
//set for all pins even when it's avaiable for each pin separately
for (int pin=0, maxpin=GetMaxPin(); pin<=maxpin; ++pin) {
for (int pin=0, maxpin=GetMaxPin(); pin<=maxpin; ++pin) {
pads[1+pin] = (pads[1+pin] & RP1_INV_PAD_DRIVE_MASK) | wrVal;
}
rdVal = pads[1+17]; // only pin 17 readback, for logging
@@ -1234,7 +1234,7 @@ void setPadDrive (int group, int value)
if ((group < 0) || (group > 2))
return ;

wrVal = BCM_PASSWORD | 0x18 | value; //Drive strength 0-7
wrVal = BCM_PASSWORD | 0x18 | value; //Drive strength 0-7
*(pads + group + 11) = wrVal ;
rdVal = *(pads + group + 11);
}
@@ -1620,7 +1620,7 @@ void pinModeAlt (int pin, int mode)

if (PI_MODEL_5 == RaspberryPiModel) {

//confusion! diffrent to to BCM! this is taking directly the value for the register
//confusion! diffrent to to BCM! this is taking directly the value for the register
/*
"alt0" 0b100
"alt1" 0b101
@@ -1728,7 +1728,7 @@ void pinMode (int pin, int mode)
shift = gpioToShift [pin] ;

if (mode == INPUT) {
if (PI_MODEL_5 == RaspberryPiModel) {
if (PI_MODEL_5 == RaspberryPiModel) {
pads[1+pin] = (pin<=8) ? RP1_PAD_DEFAULT_0TO8 : RP1_PAD_DEFAULT_FROM9;
gpio[2*pin+1] = RP1_FSEL_GPIO | RP1_DEBOUNCE_DEFAULT; // GPIO
rio[RP1_RIO_OE + RP1_CLR_OFFSET] = 1<<pin; // Input
@@ -2060,7 +2060,7 @@ void digitalWrite (int pin, int value)
rio[RP1_RIO_OUT + RP1_CLR_OFFSET] = 1<<pin;
} else {
//printf("Set pin %d >>0x%08x<< to high\n", pin, 1<<pin);
rio[RP1_RIO_OUT + RP1_SET_OFFSET] = 1<<pin;
rio[RP1_RIO_OUT + RP1_SET_OFFSET] = 1<<pin;
}
} else {
if (value == LOW)
@@ -2316,7 +2316,7 @@ unsigned int digitalReadByte2 (void)

int waitForInterrupt (int pin, int mS)
{
int fd, ret;
int fd, ret;
struct pollfd polls ;
struct gpioevent_data evdata;
//struct gpio_v2_line_request req2;
@@ -2339,7 +2339,7 @@ int waitForInterrupt (int pin, int mS)
if (ret <= 0) {
fprintf(stderr, "wiringPi: ERROR: poll returned=%d\n", ret);
} else {
//if (polls.revents & POLLIN)
//if (polls.revents & POLLIN)
if (wiringPiDebug) {
printf ("wiringPi: IRQ line %d received %d, fd=%d\n", pin, ret, isrFds[pin]) ;
}
@@ -2427,7 +2427,7 @@ int waitForInterruptClose (int pin) {
if (isrFds[pin]>0) {
if (wiringPiDebug) {
printf ("wiringPi: waitForInterruptClose close thread 0x%lX\n", (unsigned long)isrThreads[pin]) ;
}
}
if (pthread_cancel(isrThreads[pin]) == 0) {
if (wiringPiDebug) {
printf ("wiringPi: waitForInterruptClose thread canceled successfuly\n") ;
@@ -2527,7 +2527,7 @@ int wiringPiISR (int pin, int mode, void (*function)(void))
if(waitForInterruptInit (pin, mode)<0) {
if (wiringPiDebug) {
fprintf (stderr, "wiringPi: waitForInterruptInit failed\n") ;
}
}
};

if (wiringPiDebug) {
@@ -3087,7 +3087,7 @@ int wiringPiSetupGpioDevice (enum WPIPinType pinType) {
* wiringPiSetupSys:
* GPIO Sysfs Interface for Userspace is deprecated
* https://www.kernel.org/doc/html/v5.5/admin-guide/gpio/sysfs.html
*
*
* Switched to new GPIO driver Interface in version 3.3
*/



+ 11
- 4
wiringPi/wiringSerial.c View File

@@ -153,9 +153,12 @@ void serialClose (const int fd)
*********************************************************************************
*/

void serialPutchar (const int fd, const unsigned char c)
void serialPutchar(const int fd, const unsigned char c)
{
write (fd, &c, 1) ;
ssize_t bytes_written = write(fd, &c, 1);
if (bytes_written != 1) {
perror("Error writing to file descriptor");
}
}


@@ -165,9 +168,13 @@ void serialPutchar (const int fd, const unsigned char c)
*********************************************************************************
*/

void serialPuts (const int fd, const char *s)
void serialPuts(const int fd, const char *s)
{
write (fd, s, strlen (s)) ;
size_t len = strlen(s);
ssize_t bytes_written = write(fd, s, len);
if (bytes_written != (ssize_t)len) {
perror("Error writing to file descriptor");
}
}

/*


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