This patch adds support for the rzusbstick for the atusb firmware.
More detailed information about this usb stick:
http://www.atmel.com/tools/rzusbstick.aspx
Original I have the rzraven kit:
http://www.atmel.com/tools/rzraven.aspx
Which comes with a special cable and avr dragon programmer. You need
some programmer and wires to the programmers pins. To lookup how to
connect the programmer to the rzusbstick pinout, see:
http://www.atmel.com/Images/doc8117.pdf
page 22 (schematics of the rzusbstick).
Difference between atusb and rzusbstick(rzusb) is mainly the at86rf231
vs at86rf230 one. The rzusb contains the at86rf230 which is a little bit
hard to deal with it (and has a huge errata inside the datasheet).
Nevertheless with small schanges the atusb firmware can run now on the
rzusb. The rzusb contains also a bigger mcu, so we can maybe cache more
pdus for receive handling.
To compile the rzusb firmware call:
make NAME=rzusb
this will generate the rzusb.bin
then call the programmer (in my case avrdude):
avrdude -P usb -c dragon_jtag -p usb1287 -U flash:w:rzusb.bin
NOTE: currently there is no chance (I suppose) to ensure that the atusb
receive the correct firmware, so don't try to flash the atusb with the
rzusb firmware! Also the vendor and product id is the same.
This currently a RFC, it's a quick hack and I think we should update
more the documentation to support the rzusb.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Stefan Schmidt <stefan@osg.samsung.com>
Cc: Werner Almesberger <werner@almesberger.net>
- usb/atu2.c (NUM_EPS), board.h (NUM_EPS): moved definition to
board.h
- board.h (NUM_EPS): use one EP for the boot loader, two for the
application
- usb/atu2.c (ep_init): initialize EP 1 only in an application build
The code is quite special-cased. Some more changes will be necessary
for interrupt or OUT EPs.
- atu2.c (NUM_EPS): increased from 1 to 2
- atu2.c (ep_rx): send zero-length packet also for EPs != 0
- atu2.c (handle_ep): clear FIFOCON when sending data on EP != 0
- atu2.c (ep_init): configure EP 1 as bulk IN with size 64
- usb.c (NUM_EPS): we don't need to define NUM_EPS here
- usb/usb.h (usb_ep_change), usb/atu2.c (usb_ep_change): new function
called by the USB stack to notify the hardware-specific driver of
an endpoint state change (EP_TX or EP_RX)
- usb/usb.c (usb_io): call usb_ep_change
- usb/atu2.c (handle_ep): mask TXINI if we have nothing to send
Note: this change surprisingly _increases_ the DFU wait in the boot
loader. Not yet sure why.
- boot.c (main): move the interrupt vectors to the boot loader
section
- atusb.c (main): move the interrupt vectors to the application
section
- boot.c (main): enable global interrupts while looping (disable
them before jumping to the application)
- board_app.c (__timer_read, timer_read): removed wrapped since
we're now always called with interrupts disabled
- usb/atu2.c (ep_init): enable endpoint interrupts
- usb/atu2.c (usb_init): enable device interrupts
- usb/atu2.c (usb_poll, USB_GEN_vect, USB_COM_vect): moved poll
loop code into separate handlers for device and endpoint
interrupts
- boot.c (main), atusb.c (main): removed call to usb_poll
The old code could accidently acknowledge interrupts that appeared
between the read and the write in UxINTx &= mask.
- atu2.c (handle_ep): writing to UEINTX implies a race-free "and"
- atu2.c (usb_poll): writing to UDINT implies a race-free "and"
This allows us to do other things as well, e.g., change state.
- ep0.c (ep0_init), usb/dfu.c (dfu_init): use user_setup
- usb/atu2.c (usb_poll): no need to reset user_setup - the user's
reset function can do that
- usb/usb.h (user_setups), usb/usb.c (handle_setup): removed
user_setups
- usb/usb.h (user_set_interface), usb/usb.c (user_set_interface,
handle_setup): callback for SET_INTERFACE
- ep0.c (ep0_init), usb/dfu.c (dfu_init): set user_setups[0] instead
of user_setup
- usb/atu2.c (usb_poll): reset user_setup on bus reset
- usb/usb.h (user_setups), usb/usb.c (user_setups): array of
interface-specific setup functions
- usb/usb.c (handle_setup): in SET_INTERFACE, select setup function
from user_setups according to interface
- usb/usb.c (handle_setup): if user_setup is not set (e.g., the
optional SET_INTERFACE was never issued), fall back to user_setups[0]
- usb/atu2.c (ep_init): moved before usb_poll
- usb/atu2.c (usb_poll): register bit was used as mask, not as shift
- usb/atu2.c (usb_poll): call ep_init on USB bus reset
- usb/atu2.c (usb_reset): don't make USB bus reset force a hardware reset
- Makefile (.PHONY, dfu): new target to upload the application with DFU
- usb/usb.h, usb/atu2.c (usb_reset): reset the USB bus by detaching and
re-attaching the device
- boot.c (main): force a USB reset before running the payload
- usb/atu2.c (usb_poll): test for USB reset from the host (in progress)
- usb/dfu.c (my_reset, dfu_init): register user USB reset handler
