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 55config CI_UDC 56 bool "ChipIdea device controller" 57 select USB_GADGET_DUALSPEED 58 help 59 Say Y here to enable device controller functionality of the 60 ChipIdea driver. 61 62config USB_GADGET_VBUS_DRAW 63 int "Maximum VBUS Power usage (2-500 mA)" 64 range 2 500 65 default 2 66 help 67 Some devices need to draw power from USB when they are 68 configured, perhaps to operate circuitry or to recharge 69 batteries. This is in addition to any local power supply, 70 such as an AC adapter or batteries. 71 72 Enter the maximum power your device draws through USB, in 73 milliAmperes. The permitted range of values is 2 - 500 mA; 74 0 mA would be legal, but can make some hosts misbehave. 75 76 This value will be used except for system-specific gadget 77 drivers that have more specific information. 78 79# Selected by UDC drivers that support high-speed operation. 80config USB_GADGET_DUALSPEED 81 bool 82 83config USB_GADGET_DOWNLOAD 84 bool "Enable USB download gadget" 85 help 86 Composite USB download gadget support (g_dnl) for download functions. 87 This code works on top of composite gadget. 88 89if USB_GADGET_DOWNLOAD 90 91config G_DNL_MANUFACTURER 92 string "Vendor name of USB device" 93 94config G_DNL_VENDOR_NUM 95 hex "Vendor ID of USB device" 96 97config G_DNL_PRODUCT_NUM 98 hex "Product ID of USB device" 99 100endif # USB_GADGET_DOWNLOAD 101 102endif # USB_GADGET 103