* - Twiddles the LEDs
* - Restores the original configuration
* - Resets the device again so that the original config is immediately active
- *
- * Watch out; the tty device is hard-coded.
*/
+#include <fcntl.h>
+#include <netinet/in.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
-#include <fcntl.h>
-
-/* CP2103 ioctls */
-#define IOCTL_GPIOGET 0x8000 /* Get gpio bits */
-#define IOCTL_GPIOSET 0x8001 /* Set gpio bits */
-#define IOCTL_GPIOBIC 0x8002 /* Clear specific gpio bit(s) */
-#define IOCTL_GPIOBIS 0x8003 /* Set specific gpio bit(s) */
-
-/* CP210x ioctls principally used during initial device configuration */
-#define IOCTL_DEVICERESET 0x8004 /* Reset the cp210x */
-#define IOCTL_PORTCONFGET 0x8005 /* Get port configuration */
-#define IOCTL_PORTCONFSET 0x8006 /* Set port configuration */
-#define IOCTL_SETVID 0x8007 /* Set vendor id */
-#define IOCTL_SETPID 0x8008 /* Set product id */
-#define IOCTL_SETMFG 0x8009 /* Set manufacturer string */
-#define IOCTL_SETPRODUCT 0x800a /* Set product string */
-#define IOCTL_SETSERIAL 0x800b /* Set serial number string */
-#define IOCTL_SETDEVVER 0x800c /* set device version id */
-/* FIXME: where is IOCTL_SETMFG? */
-
-
-typedef struct {
- uint16_t mode;
- uint16_t lowPower;
- uint16_t latch;
-} cp2103_port_state_t;
-
-typedef struct {
- cp2103_port_state_t reset;
- cp2103_port_state_t suspend;
- uint8_t enhancedFxn;
-} cp2103_port_config_t;
+#include <unistd.h>
+#include <cp210x.h>
int cpConnect(char* device)
{
- int ret, ioval;
int fd = open(device, O_RDWR);
if (fd < 0) {
fprintf(stderr, "cannot open tty\n");
int main(int argc, char* argv[])
{
int fd;
- cp2103_port_config_t config;
- cp2103_port_config_t saveConfig;
+ struct cp210x_port_config config;
+ struct cp210x_port_config saveConfig;
uint8_t saveGpio;
int ret;
int i;
return 1;
/* Read the current port configuration */
- if ((ret = ioctl(fd, IOCTL_PORTCONFGET, &config))) {
+ if ((ret = ioctl(fd, CP210x_IOCTL_PORTCONFGET, &config))) {
fprintf(stderr, "portconfget ioctl failed %d\n", ret);
return 1;
}
printf("port config received\n");
/* Read the current gpio latches */
- if ((ret = ioctl(fd, IOCTL_GPIOGET, &saveGpio))) {
+ if ((ret = ioctl(fd, CP210x_IOCTL_GPIOGET, &saveGpio))) {
fprintf(stderr, "gpioget ioctl failed %d\n", ret);
return 1;
}
config.suspend.mode &= ~0x0300;
config.reset.latch |= 0x0300;
config.enhancedFxn &= ~0x03;
- if ((ret = ioctl(fd, IOCTL_PORTCONFSET, &config))) {
+ if ((ret = ioctl(fd, CP210x_IOCTL_PORTCONFSET, &config))) {
fprintf(stderr, "portconfset ioctl failed %d\n", ret);
return 1;
}
printf("port config altered\n");
/* Reset the part */
- if ((ret = ioctl(fd, IOCTL_DEVICERESET, 0))) {
+ if ((ret = ioctl(fd, CP210x_IOCTL_DEVICERESET, 0))) {
fprintf(stderr, "device reset ioctl failed %d\n", ret);
return 1;
}
/* Now, twiddle some bits */
for (i = 0; i < 8; i++) {
uint8_t leds = i & 0x03;
- if ((ret = ioctl(fd, IOCTL_GPIOSET, leds))) {
+ if ((ret = ioctl(fd, CP210x_IOCTL_GPIOSET, leds))) {
fprintf(stderr, "gpio set ioctl failed %d\n", ret);
return 1;
}
}
/* Restore the original latches */
- if ((ret = ioctl(fd, IOCTL_GPIOSET, saveGpio))) {
+ if ((ret = ioctl(fd, CP210x_IOCTL_GPIOSET, saveGpio))) {
fprintf(stderr, "gpio set ioctl failed %d\n", ret);
return 1;
}
printf("gpio latches restored\n");
/* Return the original configuration */
- if ((ret = ioctl(fd, IOCTL_PORTCONFSET, &saveConfig))) {
+ if ((ret = ioctl(fd, CP210x_IOCTL_PORTCONFSET, &saveConfig))) {
fprintf(stderr, "portconfset ioctl failed %d\n", ret);
return 1;
}
printf("port config restored\n");
/* Reset the part again */
- if ((ret = ioctl(fd, IOCTL_DEVICERESET, 0))) {
+ if ((ret = ioctl(fd, CP210x_IOCTL_DEVICERESET, 0))) {
fprintf(stderr, "device reset ioctl failed %d\n", ret);
return 1;
}