--- /dev/null
+#include <stdio.h>
+#include <stdlib.h>
+/* According to POSIX.1-2001 */
+#include <sys/select.h>
+#include <string.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <termios.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <usb.h>
+#include <getopt.h>
+#include <stdint.h>
+
+#define _GNU_SOURCE
+#include <getopt.h>
+
+
+#define I_VENDOR_NUM 0x10c4
+#define I_PRODUCT_NUM 0xea60
+
+
+#define VENDOR_READ_REQUEST_TYPE 0xc0
+#define VENDOR_READ_REQUEST 0x01
+
+#define VENDOR_WRITE_REQUEST_TYPE 0x40
+#define VENDOR_WRITE_REQUEST 0x01
+
+/* CP2103 GPIO */
+#define GPIO_0 0x01
+#define GPIO_1 0x02
+#define GPIO_2 0x04
+#define GPIO_3 0x08
+#define GPIO_MASK (GPIO_0|GPIO_1|GPIO_2|GPIO_3)
+
+
+
+//GPIO_READ
+//ret = cp210x_ctlmsg(port, 0xff, 0xc0, 0x00c2, 0, gpio, 1);
+//type c0
+//value c2
+//index 0
+//buffer 1 bytes
+//length 1
+
+
+/* Get current GPIO register from PL2303 */
+char gpio_read_reg(usb_dev_handle *h)
+{
+ char buf;
+ int bytes = usb_control_msg(
+ h, // handle obtained with usb_open()
+ 0xc0, // bRequestType
+ 0xff, // bRequest
+ 0xc2, // wValue
+ 0, // wIndex
+ &buf, // pointer to destination buffer
+ 1, // wLength
+ 100
+ );
+ handle_error(bytes);
+ return buf;
+}
+
+// GPIO_WRITE
+//request 0xff
+//type 0x40
+//value 0x37e1
+//index gpioreg
+//data NULL
+//len 0
+void gpio_write_reg(usb_dev_handle *h, uint16_t reg)
+{
+ int bytes = usb_control_msg(
+ h, // handle obtained with usb_open()
+ 0x40, // bRequestType
+ 0xff, // bRequest
+ 0x37e1, // wValue
+ reg, // wIndex
+ 0, // pointer to destination buffer
+ 0, // wLength
+ 6000
+ );
+ handle_error(bytes);
+}
+
+
+void gpio_out(usb_dev_handle *h, int gnum, int value)
+{
+
+ uint16_t gpio = 0;
+ switch (gnum) {
+ case 0:
+ gpio |= GPIO_0;
+ if (value)
+ gpio |= (GPIO_0 << 8);
+ break;
+ case 1:
+ gpio |= GPIO_1;
+ if (value)
+ gpio |= (GPIO_1 << 8);
+ break;
+ case 2:
+ gpio |= GPIO_2;
+ if (value)
+ gpio |= (GPIO_2 << 8);
+ break;
+ case 3:
+ gpio |= GPIO_3;
+ if (value)
+ gpio |= (GPIO_3 << 8);
+ break;
+ }
+ gpio_write_reg(h, gpio);
+}
+
+void gpio_in(usb_dev_handle *h, int gpio, int pullup)
+{
+ printf("FixMe: don't know how to make pins input on cp2103\n");
+}
+
+int gpio_read(usb_dev_handle *h, int gpio)
+{
+ printf("FixMe: don't know how to read pins on cp2103\n");
+}
+
+
+extern usb_dev_handle *nc_usb_open(int vendor, int product,
+ const char *vendor_name, const char *product_name, const char *serial);
+void check_handle(usb_dev_handle **h, const char* manuf, const char* product, const char* serial)
+{
+ if (*h)
+ return;
+
+ *h = nc_usb_open(I_VENDOR_NUM, I_PRODUCT_NUM, manuf, product, serial);
+ if (!(*h)) {
+ fprintf(stderr, "No CP2103 USB device %04x:%04x found ;(\n", I_VENDOR_NUM, I_PRODUCT_NUM);
+ exit(1);
+ }
+}
#include <getopt.h>
-#define I_VENDOR_NUM 0x67b
-#define I_PRODUCT_NUM 0x2303
-
-
-#define VENDOR_READ_REQUEST_TYPE 0xc0
-#define VENDOR_READ_REQUEST 0x01
-
-#define VENDOR_WRITE_REQUEST_TYPE 0x40
-#define VENDOR_WRITE_REQUEST 0x01
+void check_handle(usb_dev_handle **h, const char* manuf, const char* product, const char* serial);
+int gpio_read(usb_dev_handle *h, int gpio);
+void gpio_in(usb_dev_handle *h, int gpio, int pullup);
+void gpio_out(usb_dev_handle *h, int gpio, int value);
void handle_error(int ret)
}
}
-
-/* Get current GPIO register from PL2303 */
-char gpio_read_reg(usb_dev_handle *h)
-{
- char buf;
- int bytes = usb_control_msg(
- h, // handle obtained with usb_open()
- VENDOR_READ_REQUEST_TYPE, // bRequestType
- VENDOR_READ_REQUEST, // bRequest
- 0x0081, // wValue
- 0, // wIndex
- &buf, // pointer to destination buffer
- 1, // wLength
- 100
- );
- handle_error(bytes);
- return buf;
-}
-
-void gpio_write_reg(usb_dev_handle *h, unsigned char reg)
-{
- int bytes = usb_control_msg(
- h, // handle obtained with usb_open()
- VENDOR_WRITE_REQUEST_TYPE, // bRequestType
- VENDOR_WRITE_REQUEST, // bRequest
- 1, // wValue
- reg, // wIndex
- 0, // pointer to destination buffer
- 0, // wLength
- 6000
- );
- handle_error(bytes);
-
-}
-
-int gpio_dir_shift(int gpio) {
- if (gpio == 0)
- return 4;
- if (gpio == 1)
- return 5;
- return 4; /* default to 0 */
-}
-
-int gpio_val_shift(int gpio) {
- if (gpio == 0)
- return 6;
- if (gpio == 1)
- return 7;
- return 6; /* default to 0 */
-}
-
-
-void gpio_out(usb_dev_handle *h, int gpio, int value)
-{
- int shift_dir = gpio_dir_shift(gpio);
- int shift_val = gpio_val_shift(gpio);
- unsigned char reg = gpio_read_reg(h);
- reg |= (1 << shift_dir);
- reg &= ~(1 << shift_val);
- reg |= (value << shift_val);
- gpio_write_reg(h, reg);
-}
-
-void gpio_in(usb_dev_handle *h, int gpio, int pullup)
-{
- int shift_dir = gpio_dir_shift(gpio);
- int shift_val = gpio_val_shift(gpio);
-
- unsigned char reg = gpio_read_reg(h);
- reg &= ~(1 << shift_dir);
- reg &= ~(1 << shift_val);
- reg |= (pullup << shift_val);
- gpio_write_reg(h, reg);
-}
-
-int gpio_read(usb_dev_handle *h, int gpio)
-{
- unsigned char r = gpio_read_reg(h);
- int shift = gpio_val_shift(gpio);
- return (r & (1<<shift));
-}
-
static struct option long_options[] =
{
/* These options set a flag. */
- {"help", no_argument, 0, 'h'},
- {"gpio", required_argument, 0, 'g'},
- {"in", optional_argument, 0, 'i'},
- {"out", required_argument, 0, 'o'},
- {"sleep", required_argument, 0, 's'},
- {"read", no_argument, 0, 'r'},
+ {"help", no_argument, 0, 'h'},
+ {"gpio", required_argument, 0, 'g'},
+ {"in", optional_argument, 0, 'i'},
+ {"out", required_argument, 0, 'o'},
+ {"sleep", required_argument, 0, 's'},
+ {"read", no_argument, 0, 'r'},
+ {"product", required_argument, 0, 'p'},
+ {"manuf", required_argument, 0, 'm'},
+ {"serial", required_argument, 0, 'n'},
{0, 0, 0, 0}
};
void usage(const char *self)
{
- printf("PL2303HXA userspace GPIO control tool\n"
+ printf("PL2303HXA/CP2103 userspace GPIO control tool\n"
"(c) Andrew 'Necromant' Andrianov 2014, License: GPLv3\n"
"Usage: %s [action1] [action2] ...\n"
"Options are: \n"
- "\t -g/--gpio n - select GPIO, n=0, 1\n"
- "\t -i/--in - configure GPIO as input\n"
- "\t -o/--out v - configure GPIO as output with value v\n"
- "\t -r/--read v - Read current GPIO value\n\n"
- "\t -s/--sleep v - Delay for v ms\n\n"
+ "\t --product=blah - Use device with this 'product' string\n"
+ "\t --serial=blah - Use device with this 'serial' string\n"
+ "\t --manuf=blah - Use device with this 'manufacturer' string\n"
+ "\t -g/--gpio n - select GPIO, n=0, 1\n"
+ "\t -i/--in - configure GPIO as input\n"
+ "\t -o/--out v - configure GPIO as output with value v\n"
+ "\t -r/--read v - Read current GPIO value\n\n"
+ "\t -s/--sleep v - Delay for v ms\n\n"
"Examples: \n"
"\t%s --gpio=1 --out 1\n"
"\t%s --gpio=0 --out 0 --gpio=1 --in\n\n"
"\n", self, self, self, self);
}
-extern usb_dev_handle *nc_usb_open(int vendor, int product, char *vendor_name, char *product_name, char *serial);
-void check_handle(usb_dev_handle **h)
-{
- if (*h)
- return;
-
- /* TODO: Make a proper way to select different PL2303 devices. */
- *h = nc_usb_open(I_VENDOR_NUM, I_PRODUCT_NUM, NULL, NULL, NULL);
- if (!(*h)) {
- fprintf(stderr, "No PL2303 USB device %04x:%04x found ;(\n", I_VENDOR_NUM, I_PRODUCT_NUM);
- exit(1);
- }
-
- /* We don't set config or claim interface, pl2303 kernel driver does
- * that for us.
- */
-}
-
int main(int argc, char* argv[])
{
char c;
usb_dev_handle *h = NULL;
int gpio=0;
+ const char *product = NULL;
+ const char *manuf = NULL;
+ const char *serial = NULL;
if (argc == 1)
{
usage(argv[0]);
switch (c)
{
+ case 'p':
+ product = optarg;
+ break;
+ case 'm':
+ manuf = optarg;
+ break;
+ case 'n':
+ serial = optarg;
+ break;
case 'h':
usage(argv[0]);
exit(1);
case 'i':
{
int v=0;
- check_handle(&h);
+ check_handle(&h, manuf, product, serial);
if (optarg)
v = atoi(optarg);
gpio_in(h, gpio, v);
case 'o':
{
int v=0;
- check_handle(&h);
+ check_handle(&h, manuf, product, serial);
if (optarg)
v = atoi(optarg);
gpio_out(h, gpio, v);
}
case 'r':
{
- check_handle(&h);
+ check_handle(&h, manuf, product, serial);
printf("%d\n", gpio_read(h, gpio) ? 1 : 0);
break;
}
--- /dev/null
+#include <stdio.h>
+#include <stdlib.h>
+/* According to POSIX.1-2001 */
+#include <sys/select.h>
+#include <string.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <termios.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <usb.h>
+#include <getopt.h>
+
+
+#define _GNU_SOURCE
+#include <getopt.h>
+
+
+#define I_VENDOR_NUM 0x67b
+#define I_PRODUCT_NUM 0x2303
+
+
+#define VENDOR_READ_REQUEST_TYPE 0xc0
+#define VENDOR_READ_REQUEST 0x01
+
+#define VENDOR_WRITE_REQUEST_TYPE 0x40
+#define VENDOR_WRITE_REQUEST 0x01
+
+
+
+/* Get current GPIO register from PL2303 */
+char gpio_read_reg(usb_dev_handle *h)
+{
+ char buf;
+ int bytes = usb_control_msg(
+ h, // handle obtained with usb_open()
+ VENDOR_READ_REQUEST_TYPE, // bRequestType
+ VENDOR_READ_REQUEST, // bRequest
+ 0x0081, // wValue
+ 0, // wIndex
+ &buf, // pointer to destination buffer
+ 1, // wLength
+ 100
+ );
+ handle_error(bytes);
+ return buf;
+}
+
+void gpio_write_reg(usb_dev_handle *h, unsigned char reg)
+{
+ int bytes = usb_control_msg(
+ h, // handle obtained with usb_open()
+ VENDOR_WRITE_REQUEST_TYPE, // bRequestType
+ VENDOR_WRITE_REQUEST, // bRequest
+ 1, // wValue
+ reg, // wIndex
+ 0, // pointer to destination buffer
+ 0, // wLength
+ 6000
+ );
+ handle_error(bytes);
+
+}
+
+int gpio_dir_shift(int gpio) {
+ if (gpio == 0)
+ return 4;
+ if (gpio == 1)
+ return 5;
+ return 4; /* default to 0 */
+}
+
+int gpio_val_shift(int gpio) {
+ if (gpio == 0)
+ return 6;
+ if (gpio == 1)
+ return 7;
+ return 6; /* default to 0 */
+}
+
+
+void gpio_out(usb_dev_handle *h, int gpio, int value)
+{
+ int shift_dir = gpio_dir_shift(gpio);
+ int shift_val = gpio_val_shift(gpio);
+ unsigned char reg = gpio_read_reg(h);
+ reg |= (1 << shift_dir);
+ reg &= ~(1 << shift_val);
+ reg |= (value << shift_val);
+ gpio_write_reg(h, reg);
+}
+
+void gpio_in(usb_dev_handle *h, int gpio, int pullup)
+{
+ int shift_dir = gpio_dir_shift(gpio);
+ int shift_val = gpio_val_shift(gpio);
+
+ unsigned char reg = gpio_read_reg(h);
+ reg &= ~(1 << shift_dir);
+ reg &= ~(1 << shift_val);
+ reg |= (pullup << shift_val);
+ gpio_write_reg(h, reg);
+}
+
+int gpio_read(usb_dev_handle *h, int gpio)
+{
+ unsigned char r = gpio_read_reg(h);
+ int shift = gpio_val_shift(gpio);
+ return (r & (1<<shift));
+}
+
+extern usb_dev_handle *nc_usb_open(int vendor, int product, char *vendor_name, char *product_name, char *serial);
+void check_handle(usb_dev_handle **h, const char* manuf, const char* product, const char* serial)
+{
+ if (*h)
+ return;
+
+ *h = nc_usb_open(I_VENDOR_NUM, I_PRODUCT_NUM, manuf, product, serial);
+ if (!(*h)) {
+ fprintf(stderr, "No PL2303 USB device %04x:%04x found ;(\n", I_VENDOR_NUM, I_PRODUCT_NUM);
+ exit(1);
+ }
+}
projects / pub / pl2303-ft232-gpio.git / commitdiff