From: Andrew 'Necromant' Andrianov <andrew@ncrmnt.org>
Date: Sun, 8 Feb 2015 13:51:13 +0000 (+0300)
Subject: Add cp2103 stuff
X-Git-Tag: v0.1~20
X-Git-Url: http://git.linex4red.de/pub/pl2303-ft232-gpio.git/commitdiff_plain/ab4642a6138a9032e796cfca32aefcd518814148

Add cp2103 stuff

Signed-off-by: Andrew 'Necromant' Andrianov <andrew@ncrmnt.org>
---

diff --git a/10-pl2303userspace.rules b/10-pl2303userspace.rules
index fe6af93..15fb336 100755
--- a/10-pl2303userspace.rules
+++ b/10-pl2303userspace.rules
@@ -1,5 +1,5 @@
 # PL2303 rules to allow userspace access to the dongle
 # Copy this file to /etc/udev/rules.d, reload udev rules and replug
 
-SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", ATTR{idVendor}=="67b", ATTR{idProduct}=="2303", GROUP="users", MODE="0666"
-
+SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", ATTR{idVendor}=="67b",  ATTR{idProduct}=="2303", GROUP="users", MODE="0666"
+SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", ATTR{idVendor}=="10c4", ATTR{idProduct}=="ea60", GROUP="users", MODE="0666"
diff --git a/Makefile b/Makefile
index c7f3d1f..1fa1faa 100644
--- a/Makefile
+++ b/Makefile
@@ -3,15 +3,19 @@ LDFLAGS = $(shell pkg-config --libs libusb-1.0)
 
 PREFIX?=/usr/local
 
-all: pl2303gpio
+all: pl2303gpio cp2103gpio
 
 OBJS=usb.c main.c
-pl2303gpio: $(OBJS)
+pl2303gpio: $(OBJS) pl2303.o
+	$(CC) $(CFLAGS) -Wall -Werror -I"../include" -o $(@) $(^) $(LDFLAGS) -lusb
+
+cp2103gpio: $(OBJS) cp2103.o
 	$(CC) $(CFLAGS) -Wall -Werror -I"../include" -o $(@) $(^) $(LDFLAGS) -lusb
 
 clean:
-	-rm pl2303gpio
+	-rm pl2303gpio cp2103gpio
 
-install: pl2303gpio
+install: pl2303gpio cp2103gpio
 	cp pl2303gpio $(PREFIX)/bin
-	cp 10-pl2303userspace.rules /etc/udev/rules.d
\ No newline at end of file
+	cp cp2103gpio $(PREFIX)/bin
+	cp 10-pl2303userspace.rules /etc/udev/rules.d
diff --git a/cp2103.c b/cp2103.c
new file mode 100644
index 0000000..5e4f61e
--- /dev/null
+++ b/cp2103.c
@@ -0,0 +1,141 @@
+#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);
+	}
+}
diff --git a/main.c b/main.c
index f24e40f..8efa7cb 100644
--- a/main.c
+++ b/main.c
@@ -17,15 +17,10 @@
 #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)
@@ -37,111 +32,35 @@ 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"
@@ -151,29 +70,14 @@ void usage(const char *self)
 	       "\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]);
@@ -191,6 +95,15 @@ int main(int argc, char* argv[])
 		
 		switch (c)
 		{
+		case 'p':
+			product = optarg;
+			break;
+		case 'm':
+			manuf = optarg;
+			break;
+		case 'n':
+			serial = optarg;
+			break;
 		case 'h':
 			usage(argv[0]);
 			exit(1);
@@ -201,7 +114,7 @@ int main(int argc, char* argv[])
 		case 'i':
 		{
 			int v=0; 
-			check_handle(&h);
+			check_handle(&h, manuf, product, serial);
 			if (optarg)
 				v = atoi(optarg);
 			gpio_in(h, gpio, v); 
@@ -210,7 +123,7 @@ int main(int argc, char* argv[])
 		case 'o':
 		{
 			int v=0; 
-			check_handle(&h);
+			check_handle(&h, manuf, product, serial);
 			if (optarg)
 				v = atoi(optarg);
 			gpio_out(h, gpio, v); 
@@ -224,7 +137,7 @@ int main(int argc, char* argv[])
 		}
 		case 'r': 
 		{
-			check_handle(&h);
+			check_handle(&h, manuf, product, serial);
 			printf("%d\n", gpio_read(h, gpio) ? 1 : 0); 
 			break;
 		}
diff --git a/pl2303.c b/pl2303.c
new file mode 100644
index 0000000..f0111cc
--- /dev/null
+++ b/pl2303.c
@@ -0,0 +1,124 @@
+#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);
+	}
+}