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Date: Thu, 13 Sep 2012 22:19:11 +0200 (CEST)
From: Rene Buergel <rene.buergel@...ard.de>
To: linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 4/4]: ezusb: move ezusb.c from drivers/usb/serial to drivers/usb/misc
This patch moves drivers/usb/serial/ezusb.c to drivers/usb/misc/and
adapts Makefiles and Kconfigs
Signed-off-by: René Bürgel <rene.buergel@...ard.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/misc/ezusb.c b/drivers/usb/misc/ezusb.c
new file mode 100644
index 0000000..867a3e1
--- /dev/null
+++ b/drivers/usb/misc/ezusb.c
@@ -0,0 +1,163 @@
+/*
+ * EZ-USB specific functions used by some of the USB to Serial drivers.
+ *
+ * Copyright (C) 1999 - 2002 Greg Kroah-Hartman (greg@...ah.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#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 */
+ unsigned short cpucs_reg;
+ unsigned short max_internal_adress;
+};
+
+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)
+{
+ int result;
+ unsigned char *transfer_buffer;
+
+ if (!dev) {
+ printk(KERN_ERR "ezusb: %s - no physical device present, "
+ "failing.\n", __func__);
+ return -ENODEV;
+ }
+
+ transfer_buffer = kmemdup(data, length, GFP_KERNEL);
+ if (!transfer_buffer) {
+ dev_err(&dev->dev, "%s - kmalloc(%d) failed.\n",
+ __func__, length);
+ return -ENOMEM;
+ }
+ result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ address, 0, transfer_buffer, length, 3000);
+
+ kfree(transfer_buffer);
+ return result;
+}
+EXPORT_SYMBOL_GPL(ezusb_writememory);
+
+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);
+ if (response < 0)
+ dev_err(&dev->dev, "%s-%d failed: %d\n",
+ __func__, reset_bit, response);
+ return response;
+}
+
+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);
+
+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/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
diff --git a/drivers/usb/serial/ezusb.c b/drivers/usb/serial/ezusb.c
deleted file mode 100644
index 867a3e1..0000000
--- a/drivers/usb/serial/ezusb.c
+++ /dev/null
@@ -1,163 +0,0 @@
-/*
- * EZ-USB specific functions used by some of the USB to Serial drivers.
- *
- * Copyright (C) 1999 - 2002 Greg Kroah-Hartman (greg@...ah.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#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 */
- unsigned short cpucs_reg;
- unsigned short max_internal_adress;
-};
-
-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)
-{
- int result;
- unsigned char *transfer_buffer;
-
- if (!dev) {
- printk(KERN_ERR "ezusb: %s - no physical device present, "
- "failing.\n", __func__);
- return -ENODEV;
- }
-
- transfer_buffer = kmemdup(data, length, GFP_KERNEL);
- if (!transfer_buffer) {
- dev_err(&dev->dev, "%s - kmalloc(%d) failed.\n",
- __func__, length);
- return -ENOMEM;
- }
- result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request,
- USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- address, 0, transfer_buffer, length, 3000);
-
- kfree(transfer_buffer);
- return result;
-}
-EXPORT_SYMBOL_GPL(ezusb_writememory);
-
-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);
- if (response < 0)
- dev_err(&dev->dev, "%s-%d failed: %d\n",
- __func__, reset_bit, response);
- return response;
-}
-
-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);
-
-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);
-
--
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