xref: /openbmc/u-boot/drivers/usb/gadget/Kconfig (revision cd4b0c5f)
1#
2# USB Gadget support on a system involves
3#    (a) a peripheral controller, and
4#    (b) the gadget driver using it.
5#
6# NOTE:  Gadget support ** DOES NOT ** depend on host-side CONFIG_USB !!
7#
8#  - Host systems (like PCs) need CONFIG_USB (with "A" jacks).
9#  - Peripherals (like PDAs) need CONFIG_USB_GADGET (with "B" jacks).
10#  - Some systems have both kinds of controllers.
11#
12# With help from a special transceiver and a "Mini-AB" jack, systems with
13# both kinds of controller can also support "USB On-the-Go" (CONFIG_USB_OTG).
14#
15
16menuconfig USB_GADGET
17	bool "USB Gadget Support"
18	help
19	   USB is a master/slave protocol, organized with one master
20	   host (such as a PC) controlling up to 127 peripheral devices.
21	   The USB hardware is asymmetric, which makes it easier to set up:
22	   you can't connect a "to-the-host" connector to a peripheral.
23
24	   U-Boot can run in the host, or in the peripheral.  In both cases
25	   you need a low level bus controller driver, and some software
26	   talking to it.  Peripheral controllers are often discrete silicon,
27	   or are integrated with the CPU in a microcontroller.  The more
28	   familiar host side controllers have names like "EHCI", "OHCI",
29	   or "UHCI", and are usually integrated into southbridges on PC
30	   motherboards.
31
32	   Enable this configuration option if you want to run U-Boot inside
33	   a USB peripheral device.  Configure one hardware driver for your
34	   peripheral/device side bus controller, and a "gadget driver" for
35	   your peripheral protocol.
36
37if USB_GADGET
38
39config USB_GADGET_ATMEL_USBA
40	bool "Atmel USBA"
41	select USB_GADGET_DUALSPEED
42	help
43	  USBA is the integrated high-speed USB Device controller on
44	  the AT32AP700x, some AT91SAM9 and AT91CAP9 processors from Atmel.
45
46config USB_GADGET_DWC2_OTG
47	bool "DesignWare USB2.0 HS OTG controller (gadget mode)"
48	select USB_GADGET_DUALSPEED
49	help
50	  The Designware USB2.0 high-speed gadget controller
51	  integrated into many SoCs. Select this option if you want the
52	  driver to operate in Peripheral mode. This option requires
53	  USB_GADGET to be enabled.
54
55if USB_GADGET_DWC2_OTG
56
57config USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8
58	bool "DesignWare USB2.0 HS OTG controller 8-bit PHY bus width"
59	help
60	  Set the Designware USB2.0 high-speed OTG controller
61	  PHY interface width to 8 bits, rather than the default (16 bits).
62
63endif # USB_GADGET_DWC2_OTG
64
65config CI_UDC
66	bool "ChipIdea device controller"
67	select USB_GADGET_DUALSPEED
68	help
69	  Say Y here to enable device controller functionality of the
70	  ChipIdea driver.
71
72config USB_GADGET_VBUS_DRAW
73	int "Maximum VBUS Power usage (2-500 mA)"
74	range 2 500
75	default 2
76	help
77	   Some devices need to draw power from USB when they are
78	   configured, perhaps to operate circuitry or to recharge
79	   batteries.  This is in addition to any local power supply,
80	   such as an AC adapter or batteries.
81
82	   Enter the maximum power your device draws through USB, in
83	   milliAmperes.  The permitted range of values is 2 - 500 mA;
84	   0 mA would be legal, but can make some hosts misbehave.
85
86	   This value will be used except for system-specific gadget
87	   drivers that have more specific information.
88
89# Selected by UDC drivers that support high-speed operation.
90config USB_GADGET_DUALSPEED
91	bool
92
93config USB_GADGET_DOWNLOAD
94	bool "Enable USB download gadget"
95	help
96	  Composite USB download gadget support (g_dnl) for download functions.
97	  This code works on top of composite gadget.
98
99if USB_GADGET_DOWNLOAD
100
101config G_DNL_MANUFACTURER
102	string "Vendor name of USB device"
103
104config G_DNL_VENDOR_NUM
105	hex "Vendor ID of USB device"
106
107config G_DNL_PRODUCT_NUM
108	hex "Product ID of USB device"
109
110endif # USB_GADGET_DOWNLOAD
111
112endif # USB_GADGET
113