#include <wiringPi.h>
#include <gertboard.h>
+extern int wiringPiDebug ;
+
#ifndef TRUE
# define TRUE (1==1)
# define FALSE (1==2)
#endif
-#define VERSION "1.5"
+#define VERSION "1.12"
static int wpMode ;
char *usage = "Usage: gpio -v\n"
" gpio -h\n"
- " gpio [-g] <read/write/wb/pwm/mode> ...\n"
+ " gpio [-g] <read/write/wb/pwm/clock/mode> ...\n"
" gpio [-p] <read/write/wb> ...\n"
" gpio readall\n"
" gpio unexportall/exports ...\n"
static void _doLoadUsage (char *argv [])
{
- fprintf (stderr, "Usage: %s load <spi/i2c>\n", argv [0]) ;
+ fprintf (stderr, "Usage: %s load <spi/i2c> [SPI bufferSize in KB | I2C baudrate in Kb/sec]\n", argv [0]) ;
exit (1) ;
}
char *module1, *module2 ;
char cmd [80] ;
char *file1, *file2 ;
+ char args1 [32], args2 [32] ;
- if (argc != 3)
+ if (argc < 3)
_doLoadUsage (argv) ;
+ args1 [0] = args2 [0] = 0 ;
+
/**/ if (strcasecmp (argv [2], "spi") == 0)
{
module1 = "spidev" ;
module2 = "spi_bcm2708" ;
file1 = "/dev/spidev0.0" ;
file2 = "/dev/spidev0.1" ;
+ if (argc == 4)
+ sprintf (args1, " bufsiz=%d", atoi (argv [3]) * 1024) ;
+ else if (argc > 4)
+ _doLoadUsage (argv) ;
}
else if (strcasecmp (argv [2], "i2c") == 0)
{
module2 = "i2c_bcm2708" ;
file1 = "/dev/i2c-0" ;
file2 = "/dev/i2c-1" ;
+ if (argc == 4)
+ sprintf (args2, " baudrate=%d", atoi (argv [3]) * 1000) ;
+ else if (argc > 4)
+ _doLoadUsage (argv) ;
}
else
_doLoadUsage (argv) ;
if (!moduleLoaded (module1))
{
- sprintf (cmd, "modprobe %s", module1) ;
+ sprintf (cmd, "modprobe %s%s", module1, args1) ;
system (cmd) ;
}
if (!moduleLoaded (module2))
{
- sprintf (cmd, "modprobe %s", module2) ;
+ sprintf (cmd, "modprobe %s%s", module2, args2) ;
system (cmd) ;
}
static char *pinNames [] =
{
- "GPIO 0",
- "GPIO 1",
- "GPIO 2",
- "GPIO 3",
- "GPIO 4",
- "GPIO 5",
- "GPIO 6",
- "GPIO 7",
- "SDA ",
- "SCL ",
- "CE0 ",
- "CE1 ",
- "MOSI ",
- "MISO ",
- "SCLK ",
- "TxD ",
- "RxD ",
- "GPIO 8",
- "GPIO 9",
- "GPIO10",
- "GPIO11",
+ "GPIO 0", "GPIO 1", "GPIO 2", "GPIO 3", "GPIO 4", "GPIO 5", "GPIO 6", "GPIO 7",
+ "SDA ", "SCL ",
+ "CE0 ", "CE1 ", "MOSI ", "MISO ", "SCLK ",
+ "TxD ", "RxD ",
+ "GPIO 8", "GPIO 9", "GPIO10", "GPIO11",
+} ;
+
+static char *alts [] =
+{
+ "IN ", "OUT ", "ALT5", "ALT4", "ALT0", "ALT1", "ALT2", "ALT3"
} ;
static void doReadall (void)
{
int pin ;
- printf ("+----------+------+--------+-------+\n") ;
- printf ("| wiringPi | GPIO | Name | Value |\n") ;
- printf ("+----------+------+--------+-------+\n") ;
-
- for (pin = 0 ; pin < NUM_PINS ; ++pin)
- printf ("| %6d | %3d | %s | %s |\n",
- pin, wpiPinToGpio (pin),
- pinNames [pin],
- digitalRead (pin) == HIGH ? "High" : "Low ") ;
+ printf ("+----------+------+--------+------+-------+\n") ;
+ printf ("| wiringPi | GPIO | Name | Mode | Value |\n") ;
+ printf ("+----------+------+--------+------+-------+\n") ;
- printf ("+----------+------+--------+-------+\n") ;
-
- if (piBoardRev () == 1)
- return ;
+ for (pin = 0 ; pin < 64 ; ++pin)
+ {
+ if (wpiPinToGpio (pin) == -1)
+ continue ;
- for (pin = 17 ; pin <= 20 ; ++pin)
- printf ("| %6d | %3d | %s | %s |\n",
+ printf ("| %6d | %3d | %s | %s | %s |\n",
pin, wpiPinToGpio (pin),
pinNames [pin],
+ alts [getAlt (pin)],
digitalRead (pin) == HIGH ? "High" : "Low ") ;
+ }
- printf ("+----------+------+--------+-------+\n") ;
+ printf ("+----------+------+--------+------+-------+\n") ;
}
mode = argv [3] ;
- /**/ if (strcasecmp (mode, "in") == 0) pinMode (pin, INPUT) ;
- else if (strcasecmp (mode, "out") == 0) pinMode (pin, OUTPUT) ;
- else if (strcasecmp (mode, "pwm") == 0) pinMode (pin, PWM_OUTPUT) ;
- else if (strcasecmp (mode, "up") == 0) pullUpDnControl (pin, PUD_UP) ;
- else if (strcasecmp (mode, "down") == 0) pullUpDnControl (pin, PUD_DOWN) ;
- else if (strcasecmp (mode, "tri") == 0) pullUpDnControl (pin, PUD_OFF) ;
+ /**/ if (strcasecmp (mode, "in") == 0) pinMode (pin, INPUT) ;
+ else if (strcasecmp (mode, "out") == 0) pinMode (pin, OUTPUT) ;
+ else if (strcasecmp (mode, "pwm") == 0) pinMode (pin, PWM_OUTPUT) ;
+ else if (strcasecmp (mode, "clock") == 0) pinMode (pin, GPIO_CLOCK) ;
+ else if (strcasecmp (mode, "up") == 0) pullUpDnControl (pin, PUD_UP) ;
+ else if (strcasecmp (mode, "down") == 0) pullUpDnControl (pin, PUD_DOWN) ;
+ else if (strcasecmp (mode, "tri") == 0) pullUpDnControl (pin, PUD_OFF) ;
else
{
- fprintf (stderr, "%s: Invalid mode: %s. Should be in/out/pwm/up/down/tri\n", argv [1], mode) ;
+ fprintf (stderr, "%s: Invalid mode: %s. Should be in/out/pwm/clock/up/down/tri\n", argv [1], mode) ;
exit (1) ;
}
}
}
+/*
+ * doClock:
+ * Output a clock on a pin
+ *********************************************************************************
+ */
+
+void doClock (int argc, char *argv [])
+{
+ int pin, freq ;
+
+ if (argc != 4)
+ {
+ fprintf (stderr, "Usage: %s clock <pin> <freq>\n", argv [0]) ;
+ exit (1) ;
+ }
+
+ pin = atoi (argv [2]) ;
+
+ if ((wpMode == WPI_MODE_PINS) && ((pin < 0) || (pin >= NUM_PINS)))
+ return ;
+
+ freq = atoi (argv [3]) ;
+
+ gpioClockSet (pin, freq) ;
+}
+
+
/*
* doPwm:
* Output a PWM value on a pin
{
int i ;
+ if (getenv ("WIRINGPI_DEBUG") != NULL)
+ {
+ printf ("gpio: wiringPi debug mode enabled\n") ;
+ wiringPiDebug = TRUE ;
+ }
+
if (argc == 1)
{
fprintf (stderr, "%s\n", usage) ;
else if (strcasecmp (argv [1], "write") == 0) doWrite (argc, argv) ;
else if (strcasecmp (argv [1], "wb") == 0) doWriteByte (argc, argv) ;
else if (strcasecmp (argv [1], "pwm" ) == 0) doPwm (argc, argv) ;
+ else if (strcasecmp (argv [1], "clock") == 0) doClock (argc, argv) ;
else if (strcasecmp (argv [1], "mode" ) == 0) doMode (argc, argv) ;
else
{