From 3e670223fd5f2f0cf098c8c5ad611679a7c752c3 Mon Sep 17 00:00:00 2001
From: michael <michael>
Date: Sun, 29 Apr 2007 15:18:42 +0000
Subject: [PATCH] start of configuration infrastructure

---
 Makefile     |  8 +++---
 config.c     | 75 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 config.h     | 11 ++++++++
 usb-driver.c | 54 +++++++++++++++++++------------------
 4 files changed, 119 insertions(+), 29 deletions(-)
 create mode 100644 config.c
 create mode 100644 config.h

diff --git a/Makefile b/Makefile
index 8f1f94a..cc2de3e 100644
--- a/Makefile
+++ b/Makefile
@@ -12,11 +12,11 @@ SOBJECTS=libusb-driver.so libusb-driver-DEBUG.so
 
 all: $(SOBJECTS)
 
-libusb-driver.so: usb-driver.c jtagkey.c usb-driver.h jtagkey.h Makefile
-	gcc $(CFLAGS) usb-driver.c $(JTAGKEYSRC) -o $@ -ldl -lusb -lpthread $(FTDI) -shared
+libusb-driver.so: usb-driver.c jtagkey.c config.c usb-driver.h jtagkey.h config.h Makefile
+	gcc $(CFLAGS) usb-driver.c config.c $(JTAGKEYSRC) -o $@ -ldl -lusb -lpthread $(FTDI) -shared
 
-libusb-driver-DEBUG.so: usb-driver.c jtagkey.c usb-driver.h jtagkey.h Makefile
-	gcc -DDEBUG $(CFLAGS) usb-driver.c $(JTAGKEYSRC) -o $@ -ldl -lusb -lpthread $(FTDI) -shared
+libusb-driver-DEBUG.so: usb-driver.c jtagkey.c config.c usb-driver.h jtagkey.h config.h Makefile
+	gcc -DDEBUG $(CFLAGS) usb-driver.c config.c $(JTAGKEYSRC) -o $@ -ldl -lusb -lpthread $(FTDI) -shared
 
 clean:
 	rm -f $(SOBJECTS)
diff --git a/config.c b/config.c
new file mode 100644
index 0000000..9b085d6
--- /dev/null
+++ b/config.c
@@ -0,0 +1,75 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "config.h"
+
+static struct parport_config pp_config[4];
+
+static void read_config() {
+	int i;
+	static int config_read = 0;
+
+	if (config_read)
+		return;
+	
+	config_read = 1;
+
+	for (i=0; i<sizeof(pp_config)/sizeof(struct parport_config); i++) {
+		pp_config[i].num = i;
+		pp_config[i].ppbase = i*0x10;
+		pp_config[i].real = 1;
+	}
+
+#ifdef JTAGKEY
+	pp_config[3].real = 0;
+	pp_config[3].usb_vid = 0x0403;
+	pp_config[3].usb_pid = 0xcff8;
+#endif
+}
+
+unsigned char config_is_real_pport(int num) {
+	int ret = 1;
+	int i;
+
+	read_config();
+	
+	for (i=0; i<sizeof(pp_config)/sizeof(struct parport_config); i++) {
+		if (pp_config[i].num == num) {
+			ret = pp_config[i].real;
+			break;
+		}
+	}
+
+	return ret;
+}
+
+unsigned short config_usb_vid(int num) {
+	unsigned short ret = 0x00;
+	int i;
+	
+	read_config();
+	
+	for (i=0; i<sizeof(pp_config)/sizeof(struct parport_config); i++) {
+		if (pp_config[i].num == num) {
+			ret = pp_config[i].usb_vid;
+			break;
+		}
+	}
+
+	return ret;
+}
+
+unsigned short config_usb_pid(int num) {
+	unsigned short ret = 0x00;
+	int i;
+	
+	read_config();
+	
+	for (i=0; i<sizeof(pp_config)/sizeof(struct parport_config); i++) {
+		if (pp_config[i].num == num) {
+			ret = pp_config[i].usb_pid;
+			break;
+		}
+	}
+
+	return ret;
+}
diff --git a/config.h b/config.h
new file mode 100644
index 0000000..1cacd06
--- /dev/null
+++ b/config.h
@@ -0,0 +1,11 @@
+struct parport_config {
+	int num;
+	unsigned long ppbase;
+	unsigned char real;
+	unsigned short usb_vid;
+	unsigned short usb_pid;
+};
+
+unsigned char config_is_real_pport(int num);
+unsigned short config_usb_vid(int num);
+unsigned short config_usb_pid(int num);
diff --git a/usb-driver.c b/usb-driver.c
index 9599200..b39c4fc 100644
--- a/usb-driver.c
+++ b/usb-driver.c
@@ -42,6 +42,7 @@
 #include <linux/parport.h>
 #include <linux/ppdev.h>
 #include "usb-driver.h"
+#include "config.h"
 #ifdef JTAGKEY
 #include "jtagkey.h"
 #endif
@@ -349,7 +350,7 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
 	switch(request & ~(0xc0000000)) {
 		case VERSION:
 			version = (struct version_struct*)(wdheader->data);
-			strcpy(version->version, "libusb-driver.so $Revision: 1.65 $");
+			strcpy(version->version, "libusb-driver.so $Revision: 1.66 $");
 			version->versionul = 802;
 			DPRINTF("VERSION\n");
 			break;
@@ -380,10 +381,11 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
 				ret = (*ioctl_func) (fd, request, wdioctl);
 #else
 				
-				/* FIXME: Ugly hack which maps amontec JtagKey to 4. parallel port */
 #ifdef JTAGKEY
-				if ((unsigned long)cr->Card.Item[0].I.IO.dwAddr == 0x30) {
-					ret=jtagkey_init(0x0403, 0xcff8); /* I need a config file... */
+				if (!config_is_real_pport((unsigned long)cr->Card.Item[0].I.IO.dwAddr / 0x10)) {
+					int num = (unsigned long)cr->Card.Item[0].I.IO.dwAddr / 0x10;
+
+					ret=jtagkey_init(config_usb_vid(num), config_usb_pid(num));
 					cr->hCard = 0xff;
 					ppbase = (unsigned long)cr->Card.Item[0].I.IO.dwAddr;
 					if (ret < 0)
@@ -392,6 +394,7 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
 					break;
 				}
 #endif
+
 				if (parportfd < 0) {
 					snprintf(ppdev, sizeof(ppdev), "/dev/parport%lu",
 							(unsigned long)cr->Card.Item[0].I.IO.dwAddr / 0x10);
@@ -708,7 +711,7 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
 #else
 
 #ifdef JTAGKEY
-				if (ppbase == 0x30) {
+				if (!config_is_real_pport(ppbase / 0x10)) {
 					ret = jtagkey_transfer(tr, fd, request, ppbase, ecpbase, 1);
 					break;
 				}
@@ -730,8 +733,7 @@ int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
 #else
 
 #ifdef JTAGKEY
-				/* FIXME: Config file and mor intelligent mapping! */
-				if (ppbase == 0x30) {
+				if (!config_is_real_pport(ppbase / 0x10)) {
 					ret = jtagkey_transfer(tr, fd, request, ppbase, ecpbase, num);
 					break;
 				}
@@ -981,13 +983,26 @@ FILE *fopen(const char *path, const char *mode) {
 	if (!func)
 		func = (FILE* (*) (const char*, const char*)) dlsym(RTLD_NEXT, "fopen");
 
-#ifdef JTAGKEY
-	/* FIXME: Hack for parport mapping */
-	if (!strcmp(path, "/proc/sys/dev/parport/parport3/base-addr")) {
-		ret = (*func) ("/dev/null", mode);
-	} else
-#endif
-		ret = (*func) (path, mode);
+	for (i = 0; i < 4; i++) {
+		snprintf(buf, sizeof(buf), "/proc/sys/dev/parport/parport%d/base-addr", i);
+		if (!strcmp(path, buf)) {
+			DPRINTF("open base-addr of parport%d\n", i);
+			if (config_is_real_pport(i)) {
+				ret = (*func) (path, mode);
+			} else {
+				ret = (*func) ("/dev/null", mode);
+			}
+
+			if (ret) {
+				baseaddrfp = ret;
+				baseaddrnum = i;
+			}
+
+			return ret;
+		}
+	}
+
+	ret = (*func) (path, mode);
 
 	if (!strcmp(path, "/proc/modules")) {
 		DPRINTF("opening /proc/modules\n");
@@ -996,17 +1011,6 @@ FILE *fopen(const char *path, const char *mode) {
 		modules_read = 0;
 #endif
 	}
-	
-	if (ret) {
-		for (i = 0; i < 4; i++) {
-			snprintf(buf, sizeof(buf), "/proc/sys/dev/parport/parport%d/base-addr", i);
-			if (!strcmp(path, buf)) {
-				DPRINTF("open base-addr of parport%d\n", i);
-				baseaddrfp = ret;
-				baseaddrnum = i;
-			}
-		}
-	}
 
 	return ret;
 }
-- 
2.39.5