This patch fragment includes commands for reading and writing parallel I/O ports (pario command).
Signed-off-by: David Saada david.saada@ecitele.com
common/cmd_pario.c | 85 +++++++++++++++++++++++++++++++++++++++++++++++++++ common/Makefile | 1 2 files changed, 86 insertions(+) create mode 100644 common/cmd_pario.c
--- a/common/Makefile 2008-03-28 01:49:12.000000000 +0200 +++ b/common/Makefile 2008-03-30 15:59:57.944754000 +0300 @@ -81,6 +81,7 @@ COBJS-$(CONFIG_CMD_NET) += cmd_net.o COBJS-y += cmd_nvedit.o COBJS-y += cmd_onenand.o COBJS-$(CONFIG_CMD_OTP) += cmd_otp.o +COBJS-$(CONFIG_CMD_PARIO) += cmd_pario.o ifdef CONFIG_PCI COBJS-$(CONFIG_CMD_PCI) += cmd_pci.o endif 0a1,85 --- /dev/null 2008-03-30 10:13:32.378222985 +0300 +++ b/common/cmd_pario.c 2008-03-30 16:00:43.124433000 +0300 @@ -0,0 +1,85 @@ +/* + * Copyright 2008 ECI Telecommunication. + * + * (C) Copyright 2008 David Saada david.saada@ecitele.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program 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 of + * the License, or (at your option) any later version. + * + * This program 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 this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <command.h> +#include <ioports.h> + +int do_pario (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) +{ + char op; + int port, pin, data; + static char last_op; + static int last_port, last_pin, last_data; + + /* + * We use the last specified parameters, unless new ones are + * entered. + */ + op = last_op; + port = last_port; + pin = last_pin; + data = last_data; + + if ((flag & CMD_FLAG_REPEAT) == 0) { + op = argv[1][0]; + + if (argc >= 3) + port = simple_strtoul (argv[2], NULL, 10); + if (argc >= 4) + pin = simple_strtoul (argv[3], NULL, 10); + if (argc >= 5) + data = simple_strtoul (argv[4], NULL, 10); + } + + if (op == 'r') { + qe_read_iopin(port ,pin ,&data); + printf("%d\n", data); + } else if (op == 'w') { + qe_write_iopin(port ,pin ,data); + } else { + printf("Usage:\n%s\n", cmdtp->usage); + return 1; + } + + /* + * Save the parameters for repeats. + */ + last_op = op; + last_port = port; + last_pin = pin; + last_data = data; + + return 0; +} + +/***************************************************/ + +U_BOOT_CMD( + pario, 5, 1, do_pario, + "pario - Parallel I/O utility commands\n", + "read <port> <pin> - read from port <port> pin <pin>\n" + "pario write <port> <pin> <data> - write to port <port> pin <pin>\n" +); +