ed63a7aaef
USB ethernet chip. Adapters that use this chip include the LinkSys USB100TX. There are a few others, but I'm not certain of their availability in the U.S. I used an ADMtek eval board for development. Note that while the ADMtek chip is a 100Mbps device, you can't really get 100Mbps speeds over USB. Regardless, this driver uses miibus to allow speed and duplex mode selection as well as autonegotiation. Building and kldloading the driver as a module is also supported. Note that in order to make this driver work, I had to make what some may consider an ugly hack to sys/dev/usb/usbdi.c. The usbd_transfer() function will use tsleep() for synchronous transfers that don't complete right away. This is a problem since there are times when we need to do sync transfers from an interrupt context (i.e. when reading registers from the MAC via the control endpoint), where tsleep() us a no-no. My hack allows the driver to have the code poll for transfer completion subject to the xfer->timeout timeout rather that calling tsleep(). This hack is controlled by a quirk entry and is only enabled for the ADMtek device. Now, I'm sure there are a few of you out there ready to jump on me and suggest some other approach that doesn't involve a busy wait. The only solution that might work is to handle the interrupts in a kernel thread, where you may have something resembling a process context that makes it okay to tsleep(). This is lovely, except we don't have any mechanism like that now, and I'm not about to implement such a thing myself since it's beyond the scope of driver development. (Translation: I'll be damned if I know how to do it.) If FreeBSD ever aquires such a mechanism, I'll be glad to revisit the driver to take advantage of it. In the meantime, I settled for what I perceived to be the solution that involved the least amount of code changes. In general, the hit is pretty light. Also note that my only USB test box has a UHCI controller: I haven't I don't have a machine with an OHCI controller available. Highlights: - Updated usb_quirks.* to add UQ_NO_TSLEEP quirk for ADMtek part. - Updated usbdevs and regenerated generated files - Updated HARDWARE.TXT and RELNOTES.TXT files - Updated sysinstall/device.c and userconfig.c - Updated kernel configs -- device aue0 is commented out by default - Updated /sys/conf/files - Added new kld module directory
157 lines
5.4 KiB
Plaintext
157 lines
5.4 KiB
Plaintext
#
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# GENERIC -- Generic machine with WD/AHx/NCR/BTx family disks
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#
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# For more information on this file, please read the handbook section on
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# Kernel Configuration Files:
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#
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# http://www.freebsd.org/handbook/kernelconfig-config.html
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#
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# The handbook is also available locally in /usr/share/doc/handbook
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# if you've installed the doc distribution, otherwise always see the
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# FreeBSD World Wide Web server (http://www.FreeBSD.ORG/) for the
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# latest information.
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#
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# An exhaustive list of options and more detailed explanations of the
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# device lines is also present in the ./LINT configuration file. If you are
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# in doubt as to the purpose or necessity of a line, check first in LINT.
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#
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# $FreeBSD$
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machine alpha
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cpu EV4
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cpu EV5
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ident GENERIC
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maxusers 32
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#makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
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# Platforms supported
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options DEC_AXPPCI_33 # UDB, Multia, AXPpci33, Noname
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options DEC_EB164 # EB164, PC164, PC164LX, PC164SX
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options DEC_EB64PLUS # EB64+, Aspen Alpine, etc
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options DEC_2100_A50 # AlphaStation 200, 250, 255, 400
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options DEC_KN20AA # AlphaStation 500, 600
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options DEC_ST550 # Personal Workstation 433, 500, 600
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options DEC_ST6600 # xp1000, dp264, ds20, ds10, family
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options DEC_3000_300 # DEC3000/300* Pelic* family
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options DEC_3000_500 # DEC3000/[4-9]00 Flamingo/Sandpiper family
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options DEC_1000A # AlphaServer 1000, 1000A, 800
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options INET #InterNETworking
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options FFS #Berkeley Fast Filesystem
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options FFS_ROOT #FFS usable as root device [keep this!]
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options MFS #Memory Filesystem
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options MD_ROOT #MD is a potential root device
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options NFS #Network Filesystem
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options NFS_ROOT #NFS usable as root device
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options MSDOSFS #MSDOS Filesystem
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options CD9660 #ISO 9660 Filesystem
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options CD9660_ROOT #CD-ROM usable as root device
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options PROCFS #Process filesystem
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options COMPAT_43 #Compatible with BSD 4.3 [KEEP THIS!]
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options SCSI_DELAY=15000 #Be pessimistic about Joe SCSI device
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options UCONSOLE #Allow users to grab the console
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options KTRACE #ktrace(1) syscall trace support
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options SYSVSHM #SYSV-style shared memory
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options SYSVMSG #SYSV-style message queues
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options SYSVSEM #SYSV-style semaphores
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# Standard busses
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controller isa0
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controller pci0
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# Floppy drives
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controller fdc0 at isa? port IO_FD1 irq 6 drq 2
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device fd0 at fdc0 drive 0
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# ATA and ATAPI devices
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# This is work in progress, use at your own risk.
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# It currently reuses the majors of wd.c and friends.
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# It cannot co-exist with the old system in one kernel.
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# You only need one "controller ata0" for it to find all
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# PCI devices on modern machines.
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controller ata0
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device atadisk0 # ATA disk drives
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device atapicd0 # ATAPI CDROM drives
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device atapifd0 # ATAPI floppy drives
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device atapist0 # ATAPI tape drives
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# SCSI Controllers
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# A single entry for any of these controllers (ahb, ahc, amd, ncr, etc...) is
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# sufficient for any number of installed devices.
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controller ahc0 # AHA2940 and onboard AIC7xxx devices
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#controller esp0
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controller isp0 # Qlogic family
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controller ncr0 # NCR/Symbios Logic
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controller sym0 # NCR/Symbios Logic (newer chipsets)
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# SCSI peripherals
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# Only one of each of these is needed, they are dynamically allocated.
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controller scbus0 # SCSI bus (required)
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device da0 # Direct Access (disks)
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device sa0 # Sequential Access (tape etc)
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device cd0 # CD
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device pass0 # Passthrough device (direct SCSI access)
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# atkbdc0 controls both the keyboard and the PS/2 mouse
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controller atkbdc0 at isa? port IO_KBD
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device atkbd0 at atkbdc? irq 1
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device psm0 at atkbdc? irq 12
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device vga0 at isa? port ? conflicts
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# splash screen/screen saver
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pseudo-device splash
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# syscons is the default console driver, resembling an SCO console
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device sc0 at isa?
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# real time clock
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device mcclock0 at isa0 port 0x70
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# Serial (COM) ports
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device sio0 at isa0 port IO_COM1 irq 4
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device sio1 at isa0 port IO_COM2 irq 3 flags 0x50
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# PCI Ethernet NICs.
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device de0 # DEC/Intel DC21x4x (``Tulip'')
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device fxp0 # Intel EtherExpress PRO/100B (82557, 82558)
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device le0 # Lance
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# PCI Ethernet NICs that use the common MII bus controller code.
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controller miibus0 # MII bus support
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device dc0 # DEC/Intel 21143 and workalikes
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device rl0 # RealTek 8129/8139
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device sf0 # Adaptec AIC-6915 (``Starfire'')
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device sis0 # Silicon Integrated Systems SiS 900/SiS 7016
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device ste0 # Sundance ST201 (D-Link DFE-550TX)
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device tl0 # Texas Instruments ThunderLAN
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device vr0 # VIA Rhine, Rhine II
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device wb0 # Winbond W89C840F
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device xl0 # 3Com 3c90x (``Boomerang'', ``Cyclone'')
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# Pseudo devices - the number indicates how many units to allocated.
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pseudo-device loop # Network loopback
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pseudo-device ether # Ethernet support
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pseudo-device sl 1 # Kernel SLIP
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pseudo-device ppp 1 # Kernel PPP
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pseudo-device tun # Packet tunnel.
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pseudo-device pty # Pseudo-ttys (telnet etc)
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pseudo-device md # Memory "disks"
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# The `bpf' pseudo-device enables the Berkeley Packet Filter.
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# Be aware of the administrative consequences of enabling this!
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pseudo-device bpf #Berkeley packet filter
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# USB support
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#controller uhci0 # UHCI PCI->USB interface
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#controller ohci0 # OHCI PCI->USB interface
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#controller usb0 # USB Bus (required)
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#device ugen0 # Generic
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#device uhid0 # "Human Interface Devices"
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#device ukbd0 # Keyboard
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#device ulpt0 # Printer
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#controller umass0 # Disks/Mass storage - Requires scbus and da0
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#device ums0 # Mouse
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#device aue0 # ADMtek USB ethernet
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