Composite USB download gadget (g_dnl) for download functions (e.g. DFU,
THOR, others)
Signed-off-by: Lukasz Majewski <l.majew...@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.p...@samsung.com>
Cc: Marek Vasut <ma...@denx.de>
---
drivers/usb/gadget/Makefile | 1 +
drivers/usb/gadget/g_dnl.c | 231 +++++++++++++++++++++++++++++++++++++++++++
include/g_dnl.h | 97 ++++++++++++++++++
3 files changed, 329 insertions(+), 0 deletions(-)
create mode 100644 drivers/usb/gadget/g_dnl.c
create mode 100644 include/g_dnl.h
diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index 87d1918..2c067c8 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -29,6 +29,7 @@ LIB := $(obj)libusb_gadget.o
ifdef CONFIG_USB_GADGET
COBJS-y += epautoconf.o config.o usbstring.o
COBJS-$(CONFIG_USB_GADGET_S3C_UDC_OTG) += s3c_udc_otg.o
+COBJS-$(CONFIG_USBDOWNLOAD_GADGET) += g_dnl.o
endif
ifdef CONFIG_USB_ETHER
COBJS-y += ether.o epautoconf.o config.o usbstring.o
diff --git a/drivers/usb/gadget/g_dnl.c b/drivers/usb/gadget/g_dnl.c
new file mode 100644
index 0000000..425f4f6
--- /dev/null
+++ b/drivers/usb/gadget/g_dnl.c
@@ -0,0 +1,231 @@
+/*
+ * g_dnl.c -- USB Downloader Gadget
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ * Lukasz Majewski <l.majew...@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#undef DEBUG
+#define DEBUG
+#include <errno.h>
+#include <common.h>
+#include <malloc.h>
+#include <linux/usb/ch9.h>
+#include <usbdescriptors.h>
+#include <linux/usb/gadget.h>
+#include <linux/usb/f_usbd_thor.h>
+
+#include <mmc.h>
+#include <part.h>
+
+#include <g_dnl.h>
+
+#include "usbd_thor.h"
+#include "gadget_chips.h"
+
+#include "composite.c"
+
+#define DRIVER_VERSION "usb_dnl 2.0"
+
+static const char shortname[] = "usb_dnl_";
+static const char product[] = "SLP USB download gadget";
+static const char manufacturer[] = "Samsung";
+
+static struct usb_device_descriptor device_desc = {
+ .bLength = sizeof device_desc,
+ .bDescriptorType = USB_DT_DEVICE,
+
+ .bcdUSB = __constant_cpu_to_le16(0x0200),
+ .bDeviceClass = USB_CLASS_COMM,
+ .bDeviceSubClass = 0x02, /*0x02:CDC-modem , 0x00:CDC-serial*/
+
+ .idVendor = __constant_cpu_to_le16(DRIVER_VENDOR_NUM),
+ .idProduct = __constant_cpu_to_le16(DRIVER_PRODUCT_NUM),
+ .iProduct = STRING_PRODUCT,
+ .bNumConfigurations = 1,
+};
+
+static const struct usb_descriptor_header *otg_desc[] = {
+ (struct usb_descriptor_header *) &(struct usb_otg_descriptor){
+ .bLength = sizeof(struct usb_otg_descriptor),
+ .bDescriptorType = USB_DT_OTG,
+ .bmAttributes = USB_OTG_SRP,
+ },
+ NULL,
+};
+
+/* static strings, in UTF-8 */
+static struct usb_string odin_string_defs[] = {
+ { 0, manufacturer, },
+ { 1, product, },
+};
+
+static struct usb_gadget_strings odin_string_tab = {
+ .language = 0x0409, /* en-us */
+ .strings = odin_string_defs,
+};
+
+static struct usb_gadget_strings *g_dnl_composite_strings[] = {
+ &odin_string_tab,
+ NULL,
+};
+
+static int g_dnl_unbind(struct usb_composite_dev *cdev)
+{
+ debug("%s\n", __func__);
+ return 0;
+}
+
+static int g_dnl_do_config(struct usb_configuration *c)
+{
+ int ret = -1;
+ char *s = (char *) c->cdev->driver->name;
+
+ debug("%s: c: 0x%p cdev: 0x%p\n", __func__, c, c->cdev);
+
+ if (gadget_is_otg(c->cdev->gadget)) {
+ c->descriptors = otg_desc;
+ c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
+ }
+
+ printf("GADGET DRIVER: %s\n", s);
+
+ if (!strcmp(s, "usb_dnl_thor"))
+ ret = f_usbd_add(c);
+
+ return ret;
+}
+
+static int g_dnl_config_register(struct usb_composite_dev *cdev)
+{
+ debug("%s:\n", __func__);
+ static struct usb_configuration config = {
+ .label = "usbd_thor_download",
+ .bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER,
+ .bConfigurationValue = CONFIG_USBDOWNLOADER,
+ .iConfiguration = STRING_USBDOWN,
+
+ .bind = g_dnl_do_config,
+ };
+
+ return usb_add_config(cdev, &config);
+}
+
+static int g_dnl_bind(struct usb_composite_dev *cdev)
+{
+ int gcnum;
+ int id, ret;
+ struct usb_gadget *gadget = cdev->gadget;
+
+ debug("%s: gadget: 0x%p cdev: 0x%p\n", __func__, gadget, cdev);
+
+ id = usb_string_id(cdev);
+
+ if (id < 0)
+ return id;
+ odin_string_defs[0].id = id;
+ device_desc.iManufacturer = id;
+
+ id = usb_string_id(cdev);
+ if (id < 0)
+ return id;
+
+ odin_string_defs[1].id = id;
+ device_desc.iProduct = id;
+
+ ret = g_dnl_config_register(cdev);
+ if (ret)
+ goto error;
+
+
+ gcnum = usb_gadget_controller_number(gadget);
+
+ debug("gcnum: %d\n", gcnum);
+ if (gcnum >= 0)
+ device_desc.bcdDevice = cpu_to_le16(0x0200 + gcnum);
+ else {
+ printf("%s: controller '%s' not recognized\n",
+ shortname, gadget->name);
+ device_desc.bcdDevice = __constant_cpu_to_le16(0x9999);
+ }
+
+ return 0;
+
+ error:
+ g_dnl_unbind(cdev);
+ return -ENOMEM;
+}
+
+static void g_dnl_suspend(struct usb_composite_dev *cdev)
+{
+ if (cdev->gadget->speed == USB_SPEED_UNKNOWN)
+ return;
+
+ debug("suspend\n");
+}
+
+static void g_dnl_resume(struct usb_composite_dev *cdev)
+{
+ debug("resume\n");
+}
+
+static struct usb_composite_driver g_dnl_driver = {
+ .name = shortname,
+ .dev = &device_desc,
+ .strings = g_dnl_composite_strings,
+
+ .bind = g_dnl_bind,
+ .unbind = g_dnl_unbind,
+
+ .suspend = g_dnl_suspend,
+ .resume = g_dnl_resume,
+};
+
+int g_dnl_init(char *s, struct g_dnl *dnl)
+{
+
+ int ret;
+ static char str[16];
+
+ memset(str, 0x00, sizeof(str));
+ strncpy(str, shortname, sizeof(shortname));
+
+ if (!strncmp(s, "thor", sizeof(s))) {
+ strncat(str, s, sizeof(str));
+ } else {
+ printf("%s: unknown command: %s\n", __func__, s);
+ return -EINVAL;
+ }
+
+ strncpy((char *) g_dnl_driver.name, (const char *) str, sizeof(str));
+
+ usbd_thor_udc_probe();
+ set_udc_gadget_private_data(dnl);
+
+ ret = usb_composite_register(&g_dnl_driver);
+
+ if (ret) {
+ printf("%s: failed!, error:%d ", __func__, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+void g_dnl_cleanup(void)
+{
+ usb_composite_unregister(&g_dnl_driver);
+}
diff --git a/include/g_dnl.h b/include/g_dnl.h
new file mode 100644
index 0000000..9777b60
--- /dev/null
+++ b/include/g_dnl.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics
+ * Lukasz Majewski <l.majew...@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __G_DOWNLOAD_H_
+#define __G_DOWNLOAD_H_
+
+#include <mmc.h>
+#include <linux/usb/ch9.h>
+#include <usbdescriptors.h>
+#include <linux/usb/gadget.h>
+
+enum { THOR = 1 };
+enum {MMC = 1, FAT = 2, RAW = 3};
+
+struct g_dnl {
+ int prot;
+
+ char *file_name;
+ int file_size;
+
+ int (*init) (struct g_dnl *dnl);
+ int (*info) (void);
+
+ int (*dl) (struct g_dnl *dnl);
+ int (*ul) (struct g_dnl *dnl);
+
+ unsigned int *rx_buf;
+ unsigned int *tx_buf;
+
+ int (*cmd) (struct g_dnl *dnl);
+
+ int medium;
+ int (*store) (struct g_dnl *dnl, int medium);
+ unsigned int p; /* private */
+
+ int packet_size;
+};
+
+/**
+ * dnl_init - initialize code downloader
+ * @dnl: Interface to download functions
+ *
+ * returns zero, or a negative error code.
+ */
+static inline int dnl_init(struct g_dnl *dnl)
+{
+ return dnl->init(dnl);
+}
+
+/**
+ * dnl_download - handle download operation
+ * @dnl: Interface to download functions
+ *
+ * returns zero on success or a negative error code.
+ *
+ */
+static inline int dnl_download(struct g_dnl *dnl)
+{
+ return dnl->dl(dnl);
+}
+
+/**
+ * dnl_command - handle various commands
+ * @dnl: Interface to download functions
+ *
+ * returns zero on success or a negative error code.
+ *
+ */
+static inline int dnl_command(struct g_dnl *dnl)
+{
+ return dnl->cmd(dnl);
+}
+
+int g_dnl_init(char *s, struct g_dnl *dnl);
+void set_udc_gadget_private_data(void *);
+struct g_dnl *get_udc_gadget_private_data(struct usb_gadget *gadget);
+
+void usbd_thor_udc_probe(void);
+
+#endif /* __G_DOWNLOAD_H_ */
--
1.7.2.3
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