+// SPDX-License-Identifier: GPL-2.0+
/*
* g_dnl.c -- USB Downloader Gadget
*
* Copyright (C) 2012 Samsung Electronics
* Lukasz Majewski <l.majewski@samsung.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <mmc.h>
#include <part.h>
+#include <usb.h>
#include <g_dnl.h>
#include <usb_mass_storage.h>
#include <dfu.h>
#include <thor.h>
+#include <env_callback.h>
+
#include "gadget_chips.h"
#include "composite.c"
/*
* One needs to define the following:
- * CONFIG_G_DNL_VENDOR_NUM
- * CONFIG_G_DNL_PRODUCT_NUM
- * CONFIG_G_DNL_MANUFACTURER
- * at e.g. ./include/configs/<board>.h
+ * CONFIG_USB_GADGET_VENDOR_NUM
+ * CONFIG_USB_GADGET_PRODUCT_NUM
+ * CONFIG_USB_GADGET_MANUFACTURER
+ * at e.g. ./configs/<board>_defconfig
*/
#define STRING_MANUFACTURER 25
#define STRING_USBDOWN 2
/* Index of String serial */
#define STRING_SERIAL 3
-#define MAX_STRING_SERIAL 32
+#define MAX_STRING_SERIAL 256
/* Number of supported configurations */
#define CONFIGURATION_NUMBER 1
#define DRIVER_VERSION "usb_dnl 2.0"
-static const char shortname[] = "usb_dnl_";
static const char product[] = "USB download gadget";
static char g_dnl_serial[MAX_STRING_SERIAL];
-static const char manufacturer[] = CONFIG_G_DNL_MANUFACTURER;
+static const char manufacturer[] = CONFIG_USB_GADGET_MANUFACTURER;
void g_dnl_set_serialnumber(char *s)
{
memset(g_dnl_serial, 0, MAX_STRING_SERIAL);
- if (strlen(s) < MAX_STRING_SERIAL)
- strncpy(g_dnl_serial, s, strlen(s));
+ strncpy(g_dnl_serial, s, MAX_STRING_SERIAL - 1);
}
static struct usb_device_descriptor device_desc = {
.bDescriptorType = USB_DT_DEVICE,
.bcdUSB = __constant_cpu_to_le16(0x0200),
- .bDeviceClass = USB_CLASS_COMM,
- .bDeviceSubClass = 0x02, /*0x02:CDC-modem , 0x00:CDC-serial*/
+ .bDeviceClass = USB_CLASS_PER_INTERFACE,
+ .bDeviceSubClass = 0, /*0x02:CDC-modem , 0x00:CDC-serial*/
- .idVendor = __constant_cpu_to_le16(CONFIG_G_DNL_VENDOR_NUM),
- .idProduct = __constant_cpu_to_le16(CONFIG_G_DNL_PRODUCT_NUM),
- .iProduct = STRING_PRODUCT,
- .iSerialNumber = STRING_SERIAL,
+ .idVendor = __constant_cpu_to_le16(CONFIG_USB_GADGET_VENDOR_NUM),
+ .idProduct = __constant_cpu_to_le16(CONFIG_USB_GADGET_PRODUCT_NUM),
+ /* .iProduct = DYNAMIC */
+ /* .iSerialNumber = DYNAMIC */
.bNumConfigurations = 1,
};
{
struct usb_gadget *gadget = cdev->gadget;
- free(cdev->config);
- cdev->config = NULL;
debug("%s: calling usb_gadget_disconnect for "
- "controller '%s'\n", shortname, gadget->name);
+ "controller '%s'\n", __func__, gadget->name);
usb_gadget_disconnect(gadget);
return 0;
}
+static inline struct g_dnl_bind_callback *g_dnl_bind_callback_first(void)
+{
+ return ll_entry_start(struct g_dnl_bind_callback,
+ g_dnl_bind_callbacks);
+}
+
+static inline struct g_dnl_bind_callback *g_dnl_bind_callback_end(void)
+{
+ return ll_entry_end(struct g_dnl_bind_callback,
+ g_dnl_bind_callbacks);
+}
+
static int g_dnl_do_config(struct usb_configuration *c)
{
const char *s = c->cdev->driver->name;
- int ret = -1;
+ struct g_dnl_bind_callback *callback = g_dnl_bind_callback_first();
debug("%s: configuration: 0x%p composite dev: 0x%p\n",
__func__, c, c->cdev);
- printf("GADGET DRIVER: %s\n", s);
- if (!strcmp(s, "usb_dnl_dfu"))
- ret = dfu_add(c);
- else if (!strcmp(s, "usb_dnl_ums"))
- ret = fsg_add(c);
- else if (!strcmp(s, "usb_dnl_thor"))
- ret = thor_add(c);
-
- return ret;
+ for (; callback != g_dnl_bind_callback_end(); callback++)
+ if (!strcmp(s, callback->usb_function_name))
+ return callback->fptr(c);
+ return -ENODEV;
}
static int g_dnl_config_register(struct usb_composite_dev *cdev)
return usb_add_config(cdev, config);
}
+__weak
+int board_usb_init(int index, enum usb_init_type init)
+{
+ return 0;
+}
+
+__weak
+int board_usb_cleanup(int index, enum usb_init_type init)
+{
+ return 0;
+}
+
__weak
int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
{
return 0;
}
+__weak int g_dnl_get_board_bcd_device_number(int gcnum)
+{
+ return gcnum;
+}
+
+__weak int g_dnl_board_usb_cable_connected(void)
+{
+ return -EOPNOTSUPP;
+}
+
+static bool g_dnl_detach_request;
+
+bool g_dnl_detach(void)
+{
+ return g_dnl_detach_request;
+}
+
+void g_dnl_trigger_detach(void)
+{
+ g_dnl_detach_request = true;
+}
+
+void g_dnl_clear_detach(void)
+{
+ g_dnl_detach_request = false;
+}
+
+static int g_dnl_get_bcd_device_number(struct usb_composite_dev *cdev)
+{
+ struct usb_gadget *gadget = cdev->gadget;
+ int gcnum;
+
+ gcnum = usb_gadget_controller_number(gadget);
+ if (gcnum > 0)
+ gcnum += 0x200;
+
+ return g_dnl_get_board_bcd_device_number(gcnum);
+}
+
+/**
+ * Update internal serial number variable when the "serial#" env var changes.
+ *
+ * Handle all cases, even when flags == H_PROGRAMMATIC or op == env_op_delete.
+ */
+static int on_serialno(const char *name, const char *value, enum env_op op,
+ int flags)
+{
+ g_dnl_set_serialnumber((char *)value);
+ return 0;
+}
+U_BOOT_ENV_CALLBACK(serialno, on_serialno);
+
static int g_dnl_bind(struct usb_composite_dev *cdev)
{
struct usb_gadget *gadget = cdev->gadget;
g_dnl_string_defs[1].id = id;
device_desc.iProduct = id;
- id = usb_string_id(cdev);
- if (id < 0)
- return id;
+ g_dnl_bind_fixup(&device_desc, cdev->driver->name);
- g_dnl_string_defs[2].id = id;
- device_desc.iSerialNumber = id;
+ if (strlen(g_dnl_serial)) {
+ id = usb_string_id(cdev);
+ if (id < 0)
+ return id;
+
+ g_dnl_string_defs[2].id = id;
+ device_desc.iSerialNumber = id;
+ }
- g_dnl_bind_fixup(&device_desc, cdev->driver->name);
ret = g_dnl_config_register(cdev);
if (ret)
goto error;
- gcnum = usb_gadget_controller_number(gadget);
-
- debug("gcnum: %d\n", gcnum);
+ gcnum = g_dnl_get_bcd_device_number(cdev);
if (gcnum >= 0)
- device_desc.bcdDevice = cpu_to_le16(0x0200 + gcnum);
+ device_desc.bcdDevice = cpu_to_le16(gcnum);
else {
debug("%s: controller '%s' not recognized\n",
- shortname, gadget->name);
+ __func__, gadget->name);
device_desc.bcdDevice = __constant_cpu_to_le16(0x9999);
}
debug("%s: calling usb_gadget_connect for "
- "controller '%s'\n", shortname, gadget->name);
+ "controller '%s'\n", __func__, gadget->name);
usb_gadget_connect(gadget);
return 0;
.unbind = g_dnl_unbind,
};
-int g_dnl_register(const char *type)
+/*
+ * NOTICE:
+ * Registering via USB function name won't be necessary after rewriting
+ * g_dnl to support multiple USB functions.
+ */
+int g_dnl_register(const char *name)
{
- /* The largest function name is 4 */
- static char name[sizeof(shortname) + 4];
int ret;
- if (!strcmp(type, "dfu")) {
- strcpy(name, shortname);
- strcat(name, type);
- } else if (!strcmp(type, "ums")) {
- strcpy(name, shortname);
- strcat(name, type);
- } else if (!strcmp(type, "thor")) {
- strcpy(name, shortname);
- strcat(name, type);
- } else {
- printf("%s: unknown command: %s\n", __func__, type);
- return -EINVAL;
- }
-
+ debug("%s: g_dnl_driver.name = %s\n", __func__, name);
g_dnl_driver.name = name;
- debug("%s: g_dnl_driver.name: %s\n", __func__, g_dnl_driver.name);
ret = usb_composite_register(&g_dnl_driver);
-
if (ret) {
printf("%s: failed!, error: %d\n", __func__, ret);
return ret;
}
-
return 0;
}
projects / oweals / u-boot.git / blobdiff