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ea23c905d3
The Busware HUL v1.1 dongle is a product very similar to the rzusb dongle but with the at86rf212 instead of the at86rf230 transceiver. Some code refactoring has been made in order to better support multiple hardware targets. This includes: The reset_rf functions are now in the board specific files. The led functions are now in the board specific files. The register read/write functions are moved from mac.c to the generic board.c file as they are used by functions like reset_rf that are not within the mac.c file. Also the subreg_read and subreg_write functions were introduced for convenience. The function to change state is now also in board.c. The hardware types are moved into the atusb.h file (which is always synchrornized with the linux atusb driver) because they are now used by the driver to identify and configure the hardware. Within the makefile a new target name is specified called: hulusb Signed-off-by: Josef Filzmaier <j.filzmaier@gmx.at>
121 lines
2.4 KiB
C
121 lines
2.4 KiB
C
/*
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* fw/board.c - Board-specific functions (for boot loader and application)
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*
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* Written 2011, 2013 by Werner Almesberger
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* Copyright 2011, 2013 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 <stdbool.h>
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#include <stdint.h>
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <avr/boot.h>
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#define F_CPU 8000000UL
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#include <util/delay.h>
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#include "usb.h"
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#include "at86rf230.h"
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#include "board.h"
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#include "spi.h"
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uint8_t board_sernum[42] = { 42, USB_DT_STRING };
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/* ----- Register access --------------------------------------------------- */
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void change_state(uint8_t new)
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{
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while ((reg_read(REG_TRX_STATUS) & TRX_STATUS_MASK) ==
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TRX_STATUS_TRANSITION);
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reg_write(REG_TRX_STATE, new);
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}
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uint8_t reg_read(uint8_t reg)
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{
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uint8_t value;
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spi_begin();
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spi_send(AT86RF230_REG_READ | reg);
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value = spi_recv();
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spi_end();
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return value;
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}
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uint8_t subreg_read(uint8_t address, uint8_t mask, uint8_t position)
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{
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/* Read current register value and mask out subregister. */
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uint8_t register_value = reg_read(address);
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register_value &= mask;
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register_value >>= position; /* Align subregister value. */
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return register_value;
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}
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void reg_write(uint8_t reg, uint8_t value)
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{
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spi_begin();
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spi_send(AT86RF230_REG_WRITE | reg);
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spi_send(value);
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spi_end();
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}
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void subreg_write(uint8_t address, uint8_t mask, uint8_t position, uint8_t value)
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{
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/* Read current register value and mask area outside the subregister. */
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uint8_t register_value = reg_read(address);
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register_value &= ~mask;
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/* Start preparing the new subregister value. shift in place and mask. */
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value <<= position;
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value &= mask;
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value |= register_value; /* Set the new subregister value. */
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/* Write the modified register value. */
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reg_write(address, value);
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}
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void panic(void)
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{
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cli();
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while (1) {
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SET(LED);
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_delay_ms(100);
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CLR(LED);
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_delay_ms(100);
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}
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}
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static char hex(uint8_t nibble)
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{
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return nibble < 10 ? '0'+nibble : 'a'+nibble-10;
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}
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void get_sernum(void)
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{
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uint8_t sig;
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uint8_t i;
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for (i = 0; i != 10; i++) {
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sig = boot_signature_byte_get(i+0xe);
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board_sernum[(i << 2)+2] = hex(sig >> 4);
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board_sernum[(i << 2)+4] = hex(sig & 0xf);
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}
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}
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