Am Donnerstag, den 20.05.2010, 16:58 +0300 schrieb Sergei Gavrikov: > And what is about your driver's DEVTAB entries then? I do not know: Did > you design your driver on top of some generic serial or monolith driver > is yours? May be I missed something. Where are netx_serial_* defined? > Where those called from? Having no sources it is difficult to know about > your implementation details. I can guess only. Your serial stuff should > be handled in both places: HAL (either plf or variant part) and device > driver (devs/serial/netx ?).
Well, to start with the last point: I have implemented the (dumb) serial driver in the platform port, as do most arm9 ports. This one works fine for the debug/console channel. What I'm having problems with is a driver package for the UARTs. It's sitting in devs/serial/arm/netx. It's defined as a package. Parent is CYGPKG_IO_SERIAL_DEVICES. You'll find the cdl attached. I followed this guide when porting the old v2 driver to v3: http://ecos.sourceware.org/docs-3.0/ref/io-how-to-write-a-driver.html (How to Write a Serial Hardware Interface Driver). The devtab entry looks liek this: -- snip -- #if defined(CYGPKG_IO_SERIAL_ARM_NETX_UART0) static netx_serial_info netx_serial_info0 = {Addr_uart0, CYGNUM_HAL_INTERRUPT_UART0}; static unsigned char netx_serial_out_buf0[BUFFER_SIZE]; static unsigned char netx_serial_in_buf0[BUFFER_SIZE]; static SERIAL_CHANNEL_USING_INTERRUPTS(netx_serial_channel0, netx_serial_funs, netx_serial_info0, CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_ARM_NETX_UART0_BAUD), CYG_SERIAL_STOP_DEFAULT, CYG_SERIAL_PARITY_DEFAULT, CYG_SERIAL_WORD_LENGTH_DEFAULT, CYG_SERIAL_FLAGS_DEFAULT, &netx_serial_out_buf0[0], sizeof(netx_serial_out_buf0), &netx_serial_in_buf0[0], sizeof(netx_serial_in_buf0)); DEVTAB_ENTRY(netx_serial_io0, "/dev/ser0", 0, // Does not depend on a lower level interface &cyg_io_serial_devio, netx_serial_init, netx_serial_lookup, // Serial driver may need initializing &netx_serial_channel0); #endif -- snip -- CYGPKG_IO_SERIAL_ARM_NETX_UART0 is per default on (see cdl), the serial stuff is pulled in from my ecm: [...] package -hardware CYGPKG_IO_SERIAL_ARM_NETX v3_0 ; package -template CYGPKG_IO v3_0 ; package -template CYGPKG_IO_SERIAL v3_0 ; [...] cdl_component CYGPKG_IO_SERIAL_DEVICES { user_value 1 }; The resulting ecos.ecc shows that the packages are there and that CYGPKG_IO_SERIAL_ARM_NETX_UART0 is selected. The libextras.a includes the netx_serial.o file. But the application elf shows no sign of the netx_serial_* functions. Do you need anything more? Or any hints on the functions / call flow that initialize the serial subsystem would be great, too. I enabled CYGDBG_IO_INIT, which shows no sign of serial initialization besides the tty driver and the haldiag init using the platform-implemented serial driver: -- snip -- Init device '/dev/ttydiag' Init tty channel: 0x8003f54c Init device '/dev/haldiag' HAL/diag SERIAL init -- snip -- Cheers, Manuel -- man...@matronix.de http://www.matronix.de
# ==================================================================== # # ser_arm_netx.cdl # # eCos serial ARM/netX configuration data # # ==================================================================== #####ECOSGPLCOPYRIGHTBEGIN#### ## ------------------------------------------- ## This file is part of eCos, the Embedded Configurable Operating System. ## Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. ## ## eCos is free software; you can redistribute it and/or modify it under ## the terms of the GNU General Public License as published by the Free ## Software Foundation; either version 2 or (at your option) any later version. ## ## eCos is distributed in the hope that it will be useful, but WITHOUT ANY ## WARRANTY; without even the implied warranty of MERCHANTABILITY or ## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License ## for more details. ## ## You should have received a copy of the GNU General Public License along ## with eCos; if not, write to the Free Software Foundation, Inc., ## 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. ## ## As a special exception, if other files instantiate templates or use macros ## or inline functions from this file, or you compile this file and link it ## with other works to produce a work based on this file, this file does not ## by itself cause the resulting work to be covered by the GNU General Public ## License. However the source code for this file must still be made available ## in accordance with section (3) of the GNU General Public License. ## ## This exception does not invalidate any other reasons why a work based on ## this file might be covered by the GNU General Public License. ## ## Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. ## at http://sources.redhat.com/ecos/ecos-license/ ## ------------------------------------------- #####ECOSGPLCOPYRIGHTEND#### # ==================================================================== ######DESCRIPTIONBEGIN#### # # Author(s): Michael Trensch # Original data: # Contributors: # Date: March 11, 2006 # #####DESCRIPTIONEND#### # # ==================================================================== cdl_package CYGPKG_IO_SERIAL_ARM_NETX { display "Hilscher netX serial device drivers" parent CYGPKG_IO_SERIAL_DEVICES active_if CYGPKG_IO_SERIAL active_if CYGPKG_HAL_ARM_ARM9_NETX50 requires CYGPKG_ERROR include_dir cyg/io description " This option enables the serial device drivers for the Hilscher netX." compile -library=libextras.a netx_serial.c cdl_component CYGPKG_IO_SERIAL_ARM_NETX_UART0 { display "Hilscher netX UART 0 driver" flavor bool default_value 1 description " This option includes the serial device driver for the Hilscher netX UART 0." cdl_option CYGNUM_IO_SERIAL_ARM_NETX_UART0_BAUD { display "Baud rate for the Hilscher netX UART 0 driver" flavor data legal_values { 50 75 110 "134_5" 150 200 300 600 1200 1800 2400 3600 4800 7200 9600 14400 19200 38400 57600 115200 234000 } default_value 115200 description " This option specifies the default baud rate (speed) for the Hilscher netX UART 0." } } cdl_component CYGPKG_IO_SERIAL_ARM_NETX_UART1 { display "Hilscher netX UART 1 driver" flavor bool default_value 0 description " This option includes the serial device driver for the Hilscher netX UART 1." cdl_option CYGNUM_IO_SERIAL_ARM_NETX_UART1_BAUD { display "Baud rate for the Hilscher netX UART 1 driver" flavor data legal_values { 50 75 110 "134_5" 150 200 300 600 1200 1800 2400 3600 4800 7200 9600 14400 19200 38400 57600 115200 234000 } default_value 115200 description " This option specifies the default baud rate (speed) for the Hilscher netX UART 1." } } cdl_component CYGPKG_IO_SERIAL_ARM_NETX_UART2 { display "Hilscher netX UART 2 driver" flavor bool default_value 0 description " This option includes the serial device driver for the Hilscher netX UART 2." cdl_option CYGNUM_IO_SERIAL_ARM_NETX_UART2_BAUD { display "Baud rate for the Hilscher netX UART 2 driver" flavor data legal_values { 50 75 110 "134_5" 150 200 300 600 1200 1800 2400 3600 4800 7200 9600 14400 19200 38400 57600 115200 234000 } default_value 115200 description " This option specifies the default baud rate (speed) for the Hilscher netX UART 2." } } } # EOF ser_arm_netx.cdl
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Description: Dies ist ein digital signierter Nachrichtenteil
