mirror of
https://github.com/AsahiLinux/u-boot
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fc2b399ac0
Add support for CDC ACM using the new UDC and gadget API. This protocol can be used for serial over USB data transfer and is widely supported by various OS (GNU/Linux, MS-Windows, OSX...). The usual purpose of such link is to access device debug console and can be useful for products not exposing regular UART to the user. A default stdio device named 'usbacm' is created, and can be used to redirect console to USB link over CDC ACM: > setenv stdin usbacm; setenv stdout usbacm Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
254 lines
8.3 KiB
Text
254 lines
8.3 KiB
Text
#
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# USB Gadget support on a system involves
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# (a) a peripheral controller, and
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# (b) the gadget driver using it.
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#
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# NOTE: Gadget support ** DOES NOT ** depend on host-side CONFIG_USB !!
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#
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# - Host systems (like PCs) need CONFIG_USB (with "A" jacks).
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# - Peripherals (like PDAs) need CONFIG_USB_GADGET (with "B" jacks).
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# - Some systems have both kinds of controllers.
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#
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# With help from a special transceiver and a "Mini-AB" jack, systems with
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# both kinds of controller can also support "USB On-the-Go" (CONFIG_USB_OTG).
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#
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menuconfig USB_GADGET
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bool "USB Gadget Support"
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depends on DM
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select DM_USB
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help
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USB is a master/slave protocol, organized with one master
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host (such as a PC) controlling up to 127 peripheral devices.
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The USB hardware is asymmetric, which makes it easier to set up:
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you can't connect a "to-the-host" connector to a peripheral.
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U-Boot can run in the host, or in the peripheral. In both cases
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you need a low level bus controller driver, and some software
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talking to it. Peripheral controllers are often discrete silicon,
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or are integrated with the CPU in a microcontroller. The more
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familiar host side controllers have names like "EHCI", "OHCI",
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or "UHCI", and are usually integrated into southbridges on PC
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motherboards.
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Enable this configuration option if you want to run U-Boot inside
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a USB peripheral device. Configure one hardware driver for your
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peripheral/device side bus controller, and a "gadget driver" for
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your peripheral protocol.
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if USB_GADGET
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config USB_GADGET_MANUFACTURER
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string "Vendor name of the USB device"
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default "Allwinner Technology" if ARCH_SUNXI
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default "Rockchip" if ARCH_ROCKCHIP
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default "U-Boot"
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help
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Vendor name of the USB device emulated, reported to the host device.
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This is usually either the manufacturer of the device or the SoC.
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config USB_GADGET_VENDOR_NUM
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hex "Vendor ID of the USB device"
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default 0x1f3a if ARCH_SUNXI
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default 0x2207 if ARCH_ROCKCHIP
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default 0x0
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help
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Vendor ID of the USB device emulated, reported to the host device.
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This is usually the board or SoC vendor's, unless you've registered
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for one.
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config USB_GADGET_PRODUCT_NUM
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hex "Product ID of the USB device"
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default 0x1010 if ARCH_SUNXI
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default 0x310a if ROCKCHIP_RK3036
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default 0x310c if ROCKCHIP_RK3128
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default 0x320a if ROCKCHIP_RK3229 || ROCKCHIP_RK3288
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default 0x330a if ROCKCHIP_RK3328
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default 0x330c if ROCKCHIP_RK3399
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default 0x0
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help
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Product ID of the USB device emulated, reported to the host device.
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config USB_GADGET_ATMEL_USBA
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bool "Atmel USBA"
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select USB_GADGET_DUALSPEED
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help
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USBA is the integrated high-speed USB Device controller on
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the AT32AP700x, some AT91SAM9 and AT91CAP9 processors from Atmel.
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config USB_GADGET_BCM_UDC_OTG_PHY
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bool "Broadcom UDC OTG PHY"
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help
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Enable the Broadcom UDC OTG physical device interface.
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config USB_GADGET_DWC2_OTG
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bool "DesignWare USB2.0 HS OTG controller (gadget mode)"
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select USB_GADGET_DUALSPEED
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help
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The Designware USB2.0 high-speed gadget controller
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integrated into many SoCs. Select this option if you want the
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driver to operate in Peripheral mode. This option requires
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USB_GADGET to be enabled.
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if USB_GADGET_DWC2_OTG
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config USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8
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bool "DesignWare USB2.0 HS OTG controller 8-bit PHY bus width"
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help
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Set the Designware USB2.0 high-speed OTG controller
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PHY interface width to 8 bits, rather than the default (16 bits).
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endif # USB_GADGET_DWC2_OTG
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config USB_GADGET_OS_DESCRIPTORS
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bool "USB OS Feature Descriptors support"
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help
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This is a porting patch from linux kernel: 37a3a533429e
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("usb: gadget: OS Feature Descriptors support"), the original commit
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log see below:
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There is a custom (non-USB IF) extension to the USB standard:
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http://msdn.microsoft.com/library/windows/hardware/gg463182
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config CI_UDC
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bool "ChipIdea device controller"
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select USB_GADGET_DUALSPEED
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help
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Say Y here to enable device controller functionality of the
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ChipIdea driver.
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config USB_GADGET_MAX3420
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bool "MAX3420 USB Over SPI"
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depends on DM_SPI
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help
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MAX3420, from MAXIM, implements USB-over-SPI Full-Speed device controller.
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config USB_GADGET_VBUS_DRAW
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int "Maximum VBUS Power usage (2-500 mA)"
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range 2 500
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default 2
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help
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Some devices need to draw power from USB when they are
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configured, perhaps to operate circuitry or to recharge
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batteries. This is in addition to any local power supply,
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such as an AC adapter or batteries.
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Enter the maximum power your device draws through USB, in
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milliAmperes. The permitted range of values is 2 - 500 mA;
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0 mA would be legal, but can make some hosts misbehave.
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This value will be used except for system-specific gadget
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drivers that have more specific information.
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config SDP_LOADADDR
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hex "Default load address at SDP_WRITE and SDP_JUMP"
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default 0
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# Selected by UDC drivers that support high-speed operation.
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config USB_GADGET_DUALSPEED
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bool
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config USB_GADGET_DOWNLOAD
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bool "Enable USB download gadget"
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help
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Composite USB download gadget support (g_dnl) for download functions.
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This code works on top of composite gadget.
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if USB_GADGET_DOWNLOAD
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config USB_FUNCTION_MASS_STORAGE
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bool "Enable USB mass storage gadget"
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help
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Enable mass storage protocol support in U-Boot. It allows exporting
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the eMMC/SD card content to HOST PC so it can be mounted.
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config USB_FUNCTION_ROCKUSB
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bool "Enable USB rockusb gadget"
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help
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Rockusb protocol is widely used by Rockchip SoC based devices. It can
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read/write info, image to/from devices. This enables the USB part of
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the rockusb gadget.for more detail about Rockusb protocol, please see
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doc/README.rockusb
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config USB_FUNCTION_SDP
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bool "Enable USB SDP (Serial Download Protocol)"
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help
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Enable Serial Download Protocol (SDP) device support in U-Boot. This
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allows to download images into memory and execute (jump to) them
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using the same protocol as implemented by the i.MX family's boot ROM.
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config USB_FUNCTION_THOR
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bool "Enable USB THOR gadget"
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help
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Enable Tizen's THOR download protocol support in U-Boot. It
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allows downloading images into memory and flash them to target device.
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config USB_FUNCTION_ACM
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bool "Enable CDC ACM gadget"
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select SYS_STDIO_DEREGISTER
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select CIRCBUF
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help
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ACM serial link. This function can be used to create a stdio device to
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interoperate with MS-Windows hosts or with the Linux-USB "cdc-acm"
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driver.
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endif # USB_GADGET_DOWNLOAD
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config USB_ETHER
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bool "USB Ethernet Gadget"
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depends on NET
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default y if ARCH_SUNXI && USB_MUSB_GADGET
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help
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Creates an Ethernet network device through a USB peripheral
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controller. This will create a network interface on both the device
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(U-Boot) and the host (remote device) that can be used just like any
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other nework interface.
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It will bind on the peripheral USB controller, ignoring the USB hosts
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controllers in the system.
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if USB_ETHER
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choice
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prompt "USB Ethernet Gadget Model"
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default USB_ETH_RNDIS
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help
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There is several models (protocols) to implement Ethernet over USB
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devices. The main ones are Microsoft's RNDIS and USB's CDC-Ethernet
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(also called CDC-ECM). RNDIS is obviously compatible with Windows,
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while CDC-ECM is not. Most other operating systems support both, so
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if inter-operability is a concern, RNDIS is to be preferred.
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config USB_ETH_CDC
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bool "CDC-ECM Protocol"
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help
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CDC (Communications Device Class) is the standard for Ethernet over
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USB devices. While there's several alternatives, the most widely used
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protocol is ECM (Ethernet Control Model). However, compatibility with
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Windows is not that great.
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config USB_ETH_RNDIS
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bool "RNDIS Protocol"
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help
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The RNDIS (Remote Network Driver Interface Specification) is a
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Microsoft proprietary protocol to create an Ethernet device over USB.
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Windows obviously supports it, as well as all the major operating
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systems, so it's the best option for compatibility.
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endchoice
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config USBNET_DEVADDR
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string "USB Gadget Ethernet device mac address"
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default "de:ad:be:ef:00:01"
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help
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Ethernet MAC address of the device-side (ie. local board's) MAC
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address of the usb_ether interface
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config USBNET_HOST_ADDR
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string "USB Gadget Ethernet host mac address"
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default "de:ad:be:ef:00:00"
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help
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Ethernet MAC address of the host-side (ie. remote device's) MAC
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address of the usb_ether interface
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endif # USB_ETHER
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endif # USB_GADGET
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