mirror of
git://projects.qi-hardware.com/ben-wpan.git
synced 2024-11-29 12:32:28 +02:00
419b596c5d
- tools/include/atspi.h, tools/lib/atspi.c (atspi_reset): new function to send the ATSPI_RESET command (MCU reset) - tools/include/atspi.h, tools/lib/atspi.c (atspi_reset_rf): new function to send the ATSPI_RESET_RF command (transceiver reset) - tools/atspi-reset/Makefile, tools/atspi-reset/atspi-reset.c: reset utility
144 lines
2.3 KiB
C
144 lines
2.3 KiB
C
/*
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* lib/atspi.c - ATSPI access functions library
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*
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* Written 2010 by Werner Almesberger
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* Copyright 2010 Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <stdio.h>
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#include <usb.h>
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#include "f32xbase/usb.h"
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#include "atspi/ep0.h"
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#include "atspi/usb-ids.h"
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#include "atspi.h"
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#define FROM_DEV ATSPI_FROM_DEV(0)
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#define TO_DEV ATSPI_TO_DEV(0)
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/* ----- error handling ---------------------------------------------------- */
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static int error;
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int atspi_error(void)
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{
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return error;
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}
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int atspi_clear_error(void)
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{
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int ret;
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ret = error;
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error = 0;
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return ret;
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}
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/* ----- open/close -------------------------------------------------------- */
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usb_dev_handle *atspi_open(void)
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{
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usb_dev_handle *dev;
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dev = open_usb(USB_VENDOR, USB_PRODUCT);
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if (dev) {
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error = 0;
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} else {
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fprintf(stderr, ":-(\n");
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error = 1;
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}
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return dev;
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}
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void atspi_close(usb_dev_handle *dev)
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{
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/* to do */
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}
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/* ----- device mode ------------------------------------------------------- */
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void atspi_reset(usb_dev_handle *dev)
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{
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int res;
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if (error)
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return;
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res =
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usb_control_msg(dev, TO_DEV, ATSPI_RESET, 0, 0, NULL, 0, 1000);
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if (res < 0) {
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fprintf(stderr, "ATSPI_RESET: %d\n", res);
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error = 1;
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}
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}
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void atspi_reset_rf(usb_dev_handle *dev)
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{
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int res;
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if (error)
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return;
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res =
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usb_control_msg(dev, TO_DEV, ATSPI_RF_RESET, 0, 0, NULL, 0, 1000);
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if (res < 0) {
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fprintf(stderr, "ATSPI_RF_RESET: %d\n", res);
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error = 1;
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}
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}
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/* ----- register access --------------------------------------------------- */
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void atspi_reg_write(usb_dev_handle *dev, uint8_t reg, uint8_t value)
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{
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int res;
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if (error)
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return;
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res = usb_control_msg(dev, TO_DEV, ATSPI_REG_WRITE, value, reg,
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NULL, 0, 1000);
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if (res < 0) {
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fprintf(stderr, "ATSPI_REG_WRITE: %d\n", res);
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error = 1;
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}
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}
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uint8_t atspi_reg_read(usb_dev_handle *dev, uint8_t reg)
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{
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uint8_t value = 0;
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int res;
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if (error)
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return 0;
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res = usb_control_msg(dev, FROM_DEV, ATSPI_REG_READ, 0, reg,
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(void *) &value, 1, 1000);
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if (res < 0) {
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fprintf(stderr, "ATSPI_REG_READ: %d\n", res);
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error = 1;
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}
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return value;
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}
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