[PATCH v3 0/3]: ezusb FX2 support, firmware downloading support

[PATCH v3 0/3]: ezusb FX2 support, firmware downloading support

[Rene Buergel]

Hello,

this is v3 of a patches-series for controllers using the ezusb-functions.

euzsb: add support for Cypress FX2LP
ezusb: add functions for firmware download
ezusb: move ezusb.c from drivers/usb/serial to drivers/usb/misc

--
René Bürgel

SOHARD Embedded Systems GmbH

Re: [PATCH v3 1/3]: ezusb: add support for Cypress FX2LP

[Rene Buergel]

This Patch adds support for the newer Cypress FX2LP. It also adapts 
three drivers currently using ezusb to the interface change. (whiteheat 
and keyspan[_pda])

Signed-off-by: René Bürgel <rene.buergel@sohard.de>
---
diff --git a/drivers/usb/serial/ezusb.c b/drivers/usb/serial/ezusb.c
index 3048b52d..351988d 100644
--- a/drivers/usb/serial/ezusb.c
+++ b/drivers/usb/serial/ezusb.c
@@ -14,11 +14,25 @@
 #include <linux/module.h>
 #include <linux/usb.h>
 
-/* EZ-USB Control and Status Register.  Bit 0 controls 8051 reset */
-#define CPUCS_REG    0x7F92
+struct ezusb_fx_type {
+	/* EZ-USB Control and Status Register.  Bit 0 controls 8051 reset */
+	unsigned short cpucs_reg;
+	unsigned short max_internal_adress;
+};
 
-/* Command for writing to internal memory */
+struct ezusb_fx_type ezusb_fx1 = {
+	.cpucs_reg = 0x7F92,
+	.max_internal_adress = 0x1B3F,
+};
+
+struct ezusb_fx_type ezusb_fx2 = {
+	.cpucs_reg = 0xE600,
+	.max_internal_adress = 0x3FFF,
+};
+
+/* Commands for writing to memory */
 #define WRITE_INT_RAM 0xA0
+#define WRITE_EXT_RAM 0xA3
 
 int ezusb_writememory(struct usb_device *dev, int address,
 				unsigned char *data, int length, __u8 request)
@@ -47,13 +61,24 @@ int ezusb_writememory(struct usb_device *dev, int address,
 }
 EXPORT_SYMBOL_GPL(ezusb_writememory);
 
-int ezusb_set_reset(struct usb_device *dev, unsigned char reset_bit)
+int ezusb_set_reset(struct usb_device *dev, unsigned short cpucs_reg,
+			 unsigned char reset_bit)
 {
-	int response = ezusb_writememory(dev, CPUCS_REG, &reset_bit, 1, WRITE_INT_RAM);
+	int response = ezusb_writememory(dev, cpucs_reg, &reset_bit, 1, WRITE_INT_RAM);
 	if (response < 0)
 		dev_err(&dev->dev, "%s-%d failed: %d\n",
 						__func__, reset_bit, response);
 	return response;
 }
-EXPORT_SYMBOL_GPL(ezusb_set_reset);
 
+int ezusb_fx1_set_reset(struct usb_device *dev, unsigned char reset_bit)
+{
+	return ezusb_set_reset(dev, ezusb_fx1.cpucs_reg, reset_bit);
+}
+EXPORT_SYMBOL_GPL(ezusb_fx1_set_reset);
+
+int ezusb_fx2_set_reset(struct usb_device *dev, unsigned char reset_bit)
+{
+	return ezusb_set_reset(dev, ezusb_fx2.cpucs_reg, reset_bit);
+}
+EXPORT_SYMBOL_GPL(ezusb_fx2_set_reset);
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index cf17f3a..f38fc98 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -43,6 +43,7 @@
 #include <linux/uaccess.h>
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
+#include <linux/usb/ezusb.h>
 #include "keyspan.h"
 
 static bool debug;
@@ -1247,7 +1248,7 @@ static int keyspan_fake_startup(struct usb_serial *serial)
 	dev_dbg(&serial->dev->dev, "Uploading Keyspan %s firmware.\n", fw_name);
 
 		/* download the firmware image */
-	response = ezusb_set_reset(serial->dev, 1);
+	response = ezusb_fx1_set_reset(serial->dev, 1);
 
 	record = (const struct ihex_binrec *)fw->data;
 
@@ -1266,7 +1267,7 @@ static int keyspan_fake_startup(struct usb_serial *serial)
 	release_firmware(fw);
 		/* bring device out of reset. Renumeration will occur in a
 		   moment and the new device will bind to the real driver */
-	response = ezusb_set_reset(serial->dev, 0);
+	response = ezusb_fx1_set_reset(serial->dev, 0);
 
 	/* we don't want this device to have a driver assigned to it. */
 	return 1;
diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c
index 8cefb67..dda424e 100644
--- a/drivers/usb/serial/keyspan_pda.c
+++ b/drivers/usb/serial/keyspan_pda.c
@@ -30,6 +30,7 @@
 #include <linux/uaccess.h>
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
+#include <linux/usb/ezusb.h>
 
 /* make a simple define to handle if we are compiling keyspan_pda or xircom support */
 #if defined(CONFIG_USB_SERIAL_KEYSPAN_PDA) || defined(CONFIG_USB_SERIAL_KEYSPAN_PDA_MODULE)
@@ -678,7 +679,7 @@ static int keyspan_pda_fake_startup(struct usb_serial *serial)
 	const struct firmware *fw;
 
 	/* download the firmware here ... */
-	response = ezusb_set_reset(serial->dev, 1);
+	response = ezusb_fx1_set_reset(serial->dev, 1);
 
 	if (0) { ; }
 #ifdef KEYSPAN
@@ -718,7 +719,7 @@ static int keyspan_pda_fake_startup(struct usb_serial *serial)
 	release_firmware(fw);
 	/* bring device out of reset. Renumeration will occur in a moment
 	   and the new device will bind to the real driver */
-	response = ezusb_set_reset(serial->dev, 0);
+	response = ezusb_fx1_set_reset(serial->dev, 0);
 
 	/* we want this device to fail to have a driver assigned to it. */
 	return 1;
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index dd9de0e..b49af0b 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -32,6 +32,7 @@
 #include <linux/serial_reg.h>
 #include <linux/serial.h>
 #include <linux/usb/serial.h>
+#include <linux/usb/ezusb.h>
 #include <linux/firmware.h>
 #include <linux/ihex.h>
 #include "whiteheat.h"			/* WhiteHEAT specific commands */
@@ -213,7 +214,7 @@ static int whiteheat_firmware_download(struct usb_serial *serial,
 		goto out;
 	}
 	ret = 0;
-	response = ezusb_set_reset(serial->dev, 1);
+	response = ezusb_fx1_set_reset(serial->dev, 1);
 
 	record = (const struct ihex_binrec *)loader_fw->data;
 	while (record) {
@@ -230,7 +231,7 @@ static int whiteheat_firmware_download(struct usb_serial *serial,
 		record = ihex_next_binrec(record);
 	}
 
-	response = ezusb_set_reset(serial->dev, 0);
+	response = ezusb_fx1_set_reset(serial->dev, 0);
 
 	record = (const struct ihex_binrec *)firmware_fw->data;
 	while (record && be32_to_cpu(record->addr) < 0x1b40)
@@ -250,7 +251,7 @@ static int whiteheat_firmware_download(struct usb_serial *serial,
 		++record;
 	}
 
-	response = ezusb_set_reset(serial->dev, 1);
+	response = ezusb_fx1_set_reset(serial->dev, 1);
 
 	record = (const struct ihex_binrec *)firmware_fw->data;
 	while (record && be32_to_cpu(record->addr) < 0x1b40) {
@@ -268,7 +269,7 @@ static int whiteheat_firmware_download(struct usb_serial *serial,
 		++record;
 	}
 	ret = 0;
-	response = ezusb_set_reset(serial->dev, 0);
+	response = ezusb_fx1_set_reset(serial->dev, 0);
  out:
 	release_firmware(loader_fw);
 	release_firmware(firmware_fw);
diff --git a/include/linux/usb/ezusb.h b/include/linux/usb/ezusb.h
new file mode 100644
index 0000000..fc618d8
--- /dev/null
+++ b/include/linux/usb/ezusb.h
@@ -0,0 +1,16 @@
+#ifndef __EZUSB_H
+#define __EZUSB_H
+
+
+extern int ezusb_writememory(struct usb_device *dev, int address,
+			     unsigned char *data, int length, __u8 bRequest);
+
+extern int ezusb_fx1_set_reset(struct usb_device *dev, unsigned char reset_bit);
+extern int ezusb_fx2_set_reset(struct usb_device *dev, unsigned char reset_bit);
+
+extern int ezusb_fx1_ihex_firmware_download(struct usb_device *dev,
+					    const char *firmware_path);
+extern int ezusb_fx2_ihex_firmware_download(struct usb_device *dev,
+					    const char *firmware_path);
+
+#endif /* __EZUSB_H */
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index 6bed6db..ec11a56 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -301,10 +301,6 @@ extern void usb_serial_port_softint(struct usb_serial_port *port);
 extern int usb_serial_suspend(struct usb_interface *intf, pm_message_t message);
 extern int usb_serial_resume(struct usb_interface *intf);
 
-extern int ezusb_writememory(struct usb_device *dev, int address,
-			     unsigned char *data, int length, __u8 bRequest);
-extern int ezusb_set_reset(struct usb_device *dev, unsigned char reset_bit);
-
 /* USB Serial console functions */
 #ifdef CONFIG_USB_SERIAL_CONSOLE
 extern void usb_serial_console_init(int debug, int minor);

Re: [PATCH v3 2/3]: ezusb: add functions for firmware download

[Rene Buergel]

This patch adds new functions to upload firmware to the controller. The 
drivers currently using ezusb are adapted to use these new functions.

This also fixes a bug occuring during firmware loading in the 
whiteheat-driver:
The driver iterates over an ihex-formatted firmware using ++ on a "const 
struct ihex_binrec*" which leads to faulty results, because ihex data is 
read as length. The function "ihex_next_binrec(record)" has so be used 
to work correctly

Signed-off-by: René Bürgel <rene.buergel@sohard.de>
---
diff --git a/drivers/usb/serial/ezusb.c b/drivers/usb/serial/ezusb.c
index 351988d..867a3e1 100644
--- a/drivers/usb/serial/ezusb.c
+++ b/drivers/usb/serial/ezusb.c
@@ -13,6 +13,8 @@
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/usb.h>
+#include <linux/firmware.h>
+#include <linux/ihex.h>
 
 struct ezusb_fx_type {
 	/* EZ-USB Control and Status Register.  Bit 0 controls 8051 reset */
@@ -82,3 +84,80 @@ int ezusb_fx2_set_reset(struct usb_device *dev, unsigned char reset_bit)
 	return ezusb_set_reset(dev, ezusb_fx2.cpucs_reg, reset_bit);
 }
 EXPORT_SYMBOL_GPL(ezusb_fx2_set_reset);
+
+static int ezusb_ihex_firmware_download(struct usb_device *dev,
+					struct ezusb_fx_type fx,
+					const char *firmware_path)
+{
+	int ret = -ENOENT;
+	const struct firmware *firmware = NULL;
+	const struct ihex_binrec *record;
+
+	if (request_ihex_firmware(&firmware, firmware_path,
+				  &dev->dev)) {
+		dev_err(&dev->dev,
+			"%s - request \"%s\" failed\n",
+			__func__, firmware_path);
+		goto out;
+	}
+
+	ret = ezusb_set_reset(dev, fx.cpucs_reg, 0);
+	if (ret < 0)
+		goto out;
+
+	record = (const struct ihex_binrec *)firmware->data;
+	for (; record; record = ihex_next_binrec(record)) {
+		if (be32_to_cpu(record->addr) > fx.max_internal_adress) {
+			ret = ezusb_writememory(dev, be32_to_cpu(record->addr),
+						(unsigned char *)record->data,
+						be16_to_cpu(record->len), WRITE_EXT_RAM);
+			if (ret < 0) {
+				dev_err(&dev->dev, "%s - ezusb_writememory "
+					"failed writing internal memory "
+					"(%d %04X %p %d)\n", __func__, ret,
+					be32_to_cpu(record->addr), record->data,
+					be16_to_cpu(record->len));
+				goto out;
+			}
+		}
+	}
+
+	ret = ezusb_set_reset(dev, fx.cpucs_reg, 1);
+	if (ret < 0)
+		goto out;
+	record = (const struct ihex_binrec *)firmware->data;
+	for (; record; record = ihex_next_binrec(record)) {
+		if (be32_to_cpu(record->addr) <= fx.max_internal_adress) {
+			ret = ezusb_writememory(dev, be32_to_cpu(record->addr),
+						(unsigned char *)record->data,
+						be16_to_cpu(record->len), WRITE_INT_RAM);
+			if (ret < 0) {
+				dev_err(&dev->dev, "%s - ezusb_writememory "
+					"failed writing external memory "
+					"(%d %04X %p %d)\n", __func__, ret,
+					be32_to_cpu(record->addr), record->data,
+					be16_to_cpu(record->len));
+				goto out;
+			}
+		}
+	}
+	ret = ezusb_set_reset(dev, fx.cpucs_reg, 0);
+out:
+	release_firmware(firmware);
+	return ret;
+}
+
+int ezusb_fx1_ihex_firmware_download(struct usb_device *dev,
+				     const char *firmware_path)
+{
+	return ezusb_ihex_firmware_download(dev, ezusb_fx1, firmware_path);
+}
+EXPORT_SYMBOL_GPL(ezusb_fx1_ihex_firmware_download);
+
+int ezusb_fx2_ihex_firmware_download(struct usb_device *dev,
+				     const char *firmware_path)
+{
+	return ezusb_ihex_firmware_download(dev, ezusb_fx2, firmware_path);
+}
+EXPORT_SYMBOL_GPL(ezusb_fx2_ihex_firmware_download);
+
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index f38fc98..c838aa9 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -38,8 +38,6 @@
 #include <linux/tty_flip.h>
 #include <linux/module.h>
 #include <linux/spinlock.h>
-#include <linux/firmware.h>
-#include <linux/ihex.h>
 #include <linux/uaccess.h>
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
@@ -1169,10 +1167,7 @@ static void keyspan_close(struct usb_serial_port *port)
 /* download the firmware to a pre-renumeration device */
 static int keyspan_fake_startup(struct usb_serial *serial)
 {
-	int 				response;
-	const struct ihex_binrec 	*record;
-	char				*fw_name;
-	const struct firmware		*fw;
+	char	*fw_name;
 
 	dev_dbg(&serial->dev->dev, "Keyspan startup version %04x product %04x\n",
 		le16_to_cpu(serial->dev->descriptor.bcdDevice),
@@ -1240,34 +1235,16 @@ static int keyspan_fake_startup(struct usb_serial *serial)
 		return 1;
 	}
 
-	if (request_ihex_firmware(&fw, fw_name, &serial->dev->dev)) {
-		dev_err(&serial->dev->dev, "Required keyspan firmware image (%s) unavailable.\n", fw_name);
-		return 1;
-	}
-
 	dev_dbg(&serial->dev->dev, "Uploading Keyspan %s firmware.\n", fw_name);
 
-		/* download the firmware image */
-	response = ezusb_fx1_set_reset(serial->dev, 1);
-
-	record = (const struct ihex_binrec *)fw->data;
-
-	while (record) {
-		response = ezusb_writememory(serial->dev, be32_to_cpu(record->addr),
-					     (unsigned char *)record->data,
-					     be16_to_cpu(record->len), 0xa0);
-		if (response < 0) {
-			dev_err(&serial->dev->dev, "ezusb_writememory failed for Keyspan firmware (%d %04X %p %d)\n",
-				response, be32_to_cpu(record->addr),
-				record->data, be16_to_cpu(record->len));
-			break;
-		}
-		record = ihex_next_binrec(record);
+	if (ezusb_fx1_ihex_firmware_download(serial->dev, fw_name) < 0) {
+		dev_err(&serial->dev->dev, "failed to load firmware \"%s\"\n",
+			fw_name);
+		return -ENOENT;
 	}
-	release_firmware(fw);
-		/* bring device out of reset. Renumeration will occur in a
-		   moment and the new device will bind to the real driver */
-	response = ezusb_fx1_set_reset(serial->dev, 0);
+
+	/* after downloading firmware Renumeration will occur in a
+	  moment and the new device will bind to the real driver */
 
 	/* we don't want this device to have a driver assigned to it. */
 	return 1;
diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c
index dda424e..ca43ecb4 100644
--- a/drivers/usb/serial/keyspan_pda.c
+++ b/drivers/usb/serial/keyspan_pda.c
@@ -25,8 +25,6 @@
 #include <linux/module.h>
 #include <linux/spinlock.h>
 #include <linux/workqueue.h>
-#include <linux/firmware.h>
-#include <linux/ihex.h>
 #include <linux/uaccess.h>
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
@@ -675,8 +673,6 @@ static int keyspan_pda_fake_startup(struct usb_serial *serial)
 {
 	int response;
 	const char *fw_name;
-	const struct ihex_binrec *record;
-	const struct firmware *fw;
 
 	/* download the firmware here ... */
 	response = ezusb_fx1_set_reset(serial->dev, 1);
@@ -696,30 +692,15 @@ static int keyspan_pda_fake_startup(struct usb_serial *serial)
 			__func__);
 		return -ENODEV;
 	}
-	if (request_ihex_firmware(&fw, fw_name, &serial->dev->dev)) {
+
+	if (ezusb_fx1_ihex_firmware_download(serial->dev, fw_name) < 0) {
 		dev_err(&serial->dev->dev, "failed to load firmware \"%s\"\n",
 			fw_name);
 		return -ENOENT;
 	}
-	record = (const struct ihex_binrec *)fw->data;
-
-	while (record) {
-		response = ezusb_writememory(serial->dev, be32_to_cpu(record->addr),
-					     (unsigned char *)record->data,
-					     be16_to_cpu(record->len), 0xa0);
-		if (response < 0) {
-			dev_err(&serial->dev->dev, "ezusb_writememory failed "
-				"for Keyspan PDA firmware (%d %04X %p %d)\n",
-				response, be32_to_cpu(record->addr),
-				record->data, be16_to_cpu(record->len));
-			break;
-		}
-		record = ihex_next_binrec(record);
-	}
-	release_firmware(fw);
-	/* bring device out of reset. Renumeration will occur in a moment
-	   and the new device will bind to the real driver */
-	response = ezusb_fx1_set_reset(serial->dev, 0);
+
+	/* after downloading firmware Renumeration will occur in a
+	  moment and the new device will bind to the real driver */
 
 	/* we want this device to fail to have a driver assigned to it. */
 	return 1;
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index b49af0b..11f643a 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -33,8 +33,6 @@
 #include <linux/serial.h>
 #include <linux/usb/serial.h>
 #include <linux/usb/ezusb.h>
-#include <linux/firmware.h>
-#include <linux/ihex.h>
 #include "whiteheat.h"			/* WhiteHEAT specific commands */
 
 static bool debug;
@@ -196,84 +194,15 @@ static int firm_report_tx_done(struct usb_serial_port *port);
 static int whiteheat_firmware_download(struct usb_serial *serial,
 					const struct usb_device_id *id)
 {
-	int response, ret = -ENOENT;
-	const struct firmware *loader_fw = NULL, *firmware_fw = NULL;
-	const struct ihex_binrec *record;
+	int response;
 
-	if (request_ihex_firmware(&firmware_fw, "whiteheat.fw",
-				  &serial->dev->dev)) {
-		dev_err(&serial->dev->dev,
-			"%s - request \"whiteheat.fw\" failed\n", __func__);
-		goto out;
-	}
-	if (request_ihex_firmware(&loader_fw, "whiteheat_loader.fw",
-			     &serial->dev->dev)) {
-		dev_err(&serial->dev->dev,
-			"%s - request \"whiteheat_loader.fw\" failed\n",
-			__func__);
-		goto out;
-	}
-	ret = 0;
-	response = ezusb_fx1_set_reset(serial->dev, 1);
-
-	record = (const struct ihex_binrec *)loader_fw->data;
-	while (record) {
-		response = ezusb_writememory(serial->dev, be32_to_cpu(record->addr),
-					     (unsigned char *)record->data,
-					     be16_to_cpu(record->len), 0xa0);
-		if (response < 0) {
-			dev_err(&serial->dev->dev, "%s - ezusb_writememory "
-				"failed for loader (%d %04X %p %d)\n",
-				__func__, response, be32_to_cpu(record->addr),
-				record->data, be16_to_cpu(record->len));
-			break;
-		}
-		record = ihex_next_binrec(record);
-	}
-
-	response = ezusb_fx1_set_reset(serial->dev, 0);
-
-	record = (const struct ihex_binrec *)firmware_fw->data;
-	while (record && be32_to_cpu(record->addr) < 0x1b40)
-		record = ihex_next_binrec(record);
-	while (record) {
-		response = ezusb_writememory(serial->dev, be32_to_cpu(record->addr),
-					     (unsigned char *)record->data,
-					     be16_to_cpu(record->len), 0xa3);
-		if (response < 0) {
-			dev_err(&serial->dev->dev, "%s - ezusb_writememory "
-				"failed for first firmware step "
-				"(%d %04X %p %d)\n", __func__, response,
-				be32_to_cpu(record->addr), record->data,
-				be16_to_cpu(record->len));
-			break;
-		}
-		++record;
-	}
-
-	response = ezusb_fx1_set_reset(serial->dev, 1);
-
-	record = (const struct ihex_binrec *)firmware_fw->data;
-	while (record && be32_to_cpu(record->addr) < 0x1b40) {
-		response = ezusb_writememory(serial->dev, be32_to_cpu(record->addr),
-					     (unsigned char *)record->data,
-					     be16_to_cpu(record->len), 0xa0);
-		if (response < 0) {
-			dev_err(&serial->dev->dev, "%s - ezusb_writememory "
-				"failed for second firmware step "
-				"(%d %04X %p %d)\n", __func__, response,
-				be32_to_cpu(record->addr), record->data,
-				be16_to_cpu(record->len));
-			break;
-		}
-		++record;
+	response = ezusb_fx1_ihex_firmware_download(serial->dev, "whiteheat_loader.fw");
+	if (response >= 0) {
+		response = ezusb_fx1_ihex_firmware_download(serial->dev, "whiteheat.fw");
+		if (response >= 0)
+			return 0;
 	}
-	ret = 0;
-	response = ezusb_fx1_set_reset(serial->dev, 0);
- out:
-	release_firmware(loader_fw);
-	release_firmware(firmware_fw);
-	return ret;
+	return -ENOENT;
 }
 
 

Re: [PATCH v3 3/3]: ezusb: move ezusb.c from drivers/usb/serial to drivers/usb/misc

[Rene Buergel]

This patch moves drivers/usb/serial/ezusb.c to drivers/usb/misc/and
adapts Makefiles and Kconfigs

Signed-off-by: René Bürgel <rene.buergel@sohard.de>
---
diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig
index 1bfcd02..1c63b54 100644
--- a/drivers/usb/misc/Kconfig
+++ b/drivers/usb/misc/Kconfig
@@ -244,3 +244,7 @@ config USB_YUREX
 	  To compile this driver as a module, choose M here: the
 	  module will be called yurex.
 
+config USB_EZUSB
+	bool "Functions for loading firmware on EZUSB chips"
+	help
+	    Say Y here if you need EZUSB device support.
diff --git a/drivers/usb/misc/Makefile b/drivers/usb/misc/Makefile
index 796ce7e..f1f7815 100644
--- a/drivers/usb/misc/Makefile
+++ b/drivers/usb/misc/Makefile
@@ -11,6 +11,7 @@ obj-$(CONFIG_USB_CYPRESS_CY7C63)	+= cypress_cy7c63.o
 obj-$(CONFIG_USB_CYTHERM)		+= cytherm.o
 obj-$(CONFIG_USB_EMI26)			+= emi26.o
 obj-$(CONFIG_USB_EMI62)			+= emi62.o
+obj-$(CONFIG_USB_EZUSB)			+= ezusb.o
 obj-$(CONFIG_USB_FTDI_ELAN)		+= ftdi-elan.o
 obj-$(CONFIG_USB_IDMOUSE)		+= idmouse.o
 obj-$(CONFIG_USB_IOWARRIOR)		+= iowarrior.o
diff --git a/drivers/usb/serial/ezusb.c b/drivers/usb/misc/ezusb.c
similarity index 100%
rename from drivers/usb/serial/ezusb.c
rename to drivers/usb/misc/ezusb.c
diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig
index 325d291..73b5e6f 100644
--- a/drivers/usb/serial/Kconfig
+++ b/drivers/usb/serial/Kconfig
@@ -42,11 +42,6 @@ config USB_SERIAL_CONSOLE
 
 	  If unsure, say N.
 
-config USB_EZUSB
-	bool "Functions for loading firmware on EZUSB chips"
-	help
-	    Say Y here if you need EZUSB device support.
-
 config USB_SERIAL_GENERIC
 	bool "USB Generic Serial Driver"
 	help
diff --git a/drivers/usb/serial/Makefile b/drivers/usb/serial/Makefile
index 1dc483a..12b56bb 100644
--- a/drivers/usb/serial/Makefile
+++ b/drivers/usb/serial/Makefile
@@ -9,7 +9,6 @@ obj-$(CONFIG_USB_SERIAL)			+= usbserial.o
 usbserial-y := usb-serial.o generic.o bus.o
 
 usbserial-$(CONFIG_USB_SERIAL_CONSOLE)	+= console.o
-usbserial-$(CONFIG_USB_EZUSB)		+= ezusb.o
 
 obj-$(CONFIG_USB_SERIAL_AIRCABLE)		+= aircable.o
 obj-$(CONFIG_USB_SERIAL_ARK3116)		+= ark3116.o

Re: USB: ezusb: move ezusb.c from drivers/usb/serial to drivers/usb/misc

[Greg KH]

On Tue, Sep 18, 2012 at 09:03:01AM +0200, Rene Buergel wrote:
> This patch moves drivers/usb/serial/ezusb.c to drivers/usb/misc/and
> adapts Makefiles and Kconfigs
> 
> Signed-off-by: René Bürgel <rene.buergel@sohard.de>
> ---
> diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig
> index 1bfcd02..1c63b54 100644
> --- a/drivers/usb/misc/Kconfig
> +++ b/drivers/usb/misc/Kconfig
> @@ -244,3 +244,7 @@ config USB_YUREX
>  	  To compile this driver as a module, choose M here: the
>  	  module will be called yurex.
>  
> +config USB_EZUSB
> +	bool "Functions for loading firmware on EZUSB chips"

This should be a tristate so the ezusb code can be a module on it's own.

Or I think it should, as it is, I get the following build errors with
this patch applied:

ERROR: "ezusb_fx1_ihex_firmware_download" [drivers/usb/serial/whiteheat.ko] undefined!
ERROR: "ezusb_fx1_ihex_firmware_download" [drivers/usb/serial/keyspan_pda.ko] undefined!
ERROR: "ezusb_fx1_set_reset" [drivers/usb/serial/keyspan_pda.ko] undefined!
ERROR: "ezusb_fx1_ihex_firmware_download" [drivers/usb/serial/keyspan.ko] undefined!

Which is odd, as I thought those functions were exported.

So something is wrong here with this patch, I've applied the first 2, care to
redo this one so it works properly?

thanks,

greg k-h

Re: USB: ezusb: move ezusb.c from drivers/usb/serial to drivers/usb/misc

[Rene Buergel]

> I get the following build errors with
> this patch applied:
> 
> ERROR: "ezusb_fx1_ihex_firmware_download"
> [drivers/usb/serial/whiteheat.ko] undefined!
> ERROR: "ezusb_fx1_ihex_firmware_download"
> [drivers/usb/serial/keyspan_pda.ko] undefined!
> ERROR: "ezusb_fx1_set_reset" [drivers/usb/serial/keyspan_pda.ko]
> undefined!
> ERROR: "ezusb_fx1_ihex_firmware_download"
> [drivers/usb/serial/keyspan.ko] undefined!
> 

I unfortunately can't reproduce these errors, neither using bool nor tristate
for the setting in Kconfig. I did a clean build.
Can you provide more information on when/how they occur? Can you send a .config?

> Which is odd, as I thought those functions were exported.
> 
> So something is wrong here with this patch, I've applied the first 2
thanks for that

> care to redo this one so it works properly?
sure!

Re: USB: ezusb: move ezusb.c from drivers/usb/serial to drivers/usb/misc

[Greg KH]

On Wed, Sep 19, 2012 at 08:23:07PM +0200, Rene Buergel wrote:
> > I get the following build errors with
> > this patch applied:
> > 
> > ERROR: "ezusb_fx1_ihex_firmware_download"
> > [drivers/usb/serial/whiteheat.ko] undefined!
> > ERROR: "ezusb_fx1_ihex_firmware_download"
> > [drivers/usb/serial/keyspan_pda.ko] undefined!
> > ERROR: "ezusb_fx1_set_reset" [drivers/usb/serial/keyspan_pda.ko]
> > undefined!
> > ERROR: "ezusb_fx1_ihex_firmware_download"
> > [drivers/usb/serial/keyspan.ko] undefined!
> > 
> 
> I unfortunately can't reproduce these errors, neither using bool nor tristate
> for the setting in Kconfig. I did a clean build.
> Can you provide more information on when/how they occur? Can you send a .config?

I can't as I don't have the patch anymore, nor the same config.  Care to
resend it after fixing the bool Kconfig option and I'll see if I can
reproduce it?

Also be sure to cc: me so that I don't miss the patch.

thanks,

greg k-h