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ben-wpan/atusb/fw/ep0.c

298 lines
6.6 KiB
C

/*
* fw/ep0.c - EP0 extension protocol
*
* Written 2008-2011, 2013 by Werner Almesberger
* Copyright 2008-2011, 2013 Werner Almesberger
*
* 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.
*/
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
#include <avr/io.h>
#ifndef NULL
#define NULL 0
#endif
#include "usb.h"
#include "dfu.h"
#include "at86rf230.h"
#include "atusb/ep0.h"
#include "version.h"
#include "board.h"
#include "sernum.h"
#include "spi.h"
#include "mac.h"
#define HW_TYPE HW_TYPE_110131
#define debug(...)
#define error(...)
static const uint8_t id[] = { EP0ATUSB_MAJOR, EP0ATUSB_MINOR, HW_TYPE };
static uint8_t buf[MAX_PSDU+3]; /* command, PHDR, and LQI */
static uint8_t size;
static void do_buf_write(void *user)
{
uint8_t i;
spi_begin();
for (i = 0; i != size; i++)
spi_send(buf[i]);
spi_end();
}
#define BUILD_OFFSET 7 /* '#' plus "65535" plus ' ' */
static bool my_setup(const struct setup_request *setup)
{
uint16_t req = setup->bmRequestType | setup->bRequest << 8;
unsigned tmp;
uint8_t i;
uint64_t tmp64;
switch (req) {
case ATUSB_FROM_DEV(ATUSB_ID):
debug("ATUSB_ID\n");
if (setup->wLength > 3)
return 0;
usb_send(&eps[0], id, setup->wLength, NULL, NULL);
return 1;
case ATUSB_FROM_DEV(ATUSB_BUILD):
debug("ATUSB_BUILD\n");
tmp = build_number;
for (i = BUILD_OFFSET-2; tmp; i--) {
buf[i] = (tmp % 10)+'0';
tmp /= 10;
}
buf[i] = '#';
buf[BUILD_OFFSET-1] = ' ';
for (size = 0; build_date[size]; size++)
buf[BUILD_OFFSET+size] = build_date[size];
size += BUILD_OFFSET-i;
if (size > setup->wLength)
return 0;
usb_send(&eps[0], buf+i, size, NULL, NULL);
return 1;
case ATUSB_TO_DEV(ATUSB_RESET):
debug("ATUSB_RESET\n");
reset_cpu();
while (1);
case ATUSB_TO_DEV(ATUSB_RF_RESET):
debug("ATUSB_RF_RESET\n");
reset_rf();
mac_reset();
//ep_send_zlp(EP_CTRL);
return 1;
case ATUSB_FROM_DEV(ATUSB_POLL_INT):
debug("ATUSB_POLL_INT\n");
if (setup->wLength < 1)
return 0;
*buf = read_irq();
usb_send(&eps[0], buf, 1, NULL, NULL);
return 1;
case ATUSB_FROM_DEV(ATUSB_TIMER):
debug("ATUSB_TIMER\n");
size = setup->wLength;
if (size > sizeof(tmp64))
size = sizeof(tmp64);
tmp64 = timer_read();
memcpy(buf, &tmp64, sizeof(tmp64));
usb_send(&eps[0], buf, size, NULL, NULL);
return 1;
case ATUSB_FROM_DEV(ATUSB_GPIO):
debug("ATUSB_GPIO\n");
if (setup->wLength < 3)
return 0;
if (!gpio(setup->wIndex, setup->wValue, setup->wValue >> 8,
setup->wIndex >> 8, buf))
return 0;
usb_send(&eps[0], buf, 3, NULL, NULL);
return 1;
case ATUSB_TO_DEV(ATUSB_GPIO_CLEANUP):
gpio_cleanup();
return 1;
case ATUSB_TO_DEV(ATUSB_SLP_TR):
debug("ATUSB_SLP_TR\n");
slp_tr();
return 1;
case ATUSB_TO_DEV(ATUSB_REG_WRITE):
debug("ATUSB_REG_WRITE\n");
spi_begin();
spi_send(AT86RF230_REG_WRITE | setup->wIndex);
spi_send(setup->wValue);
spi_end();
//ep_send_zlp(EP_CTRL);
return 1;
case ATUSB_FROM_DEV(ATUSB_REG_READ):
debug("ATUSB_REG_READ\n");
spi_begin();
spi_send(AT86RF230_REG_READ | setup->wIndex);
*buf = spi_recv();
spi_end();
usb_send(&eps[0], buf, 1, NULL, NULL);
return 1;
case ATUSB_TO_DEV(ATUSB_BUF_WRITE):
debug("ATUSB_BUF_WRITE\n");
if (setup->wLength < 1)
return 0;
if (setup->wLength > MAX_PSDU)
return 0;
buf[0] = AT86RF230_BUF_WRITE;
buf[1] = setup->wLength;
size = setup->wLength+2;
usb_recv(&eps[0], buf+2, setup->wLength, do_buf_write, NULL);
return 1;
case ATUSB_FROM_DEV(ATUSB_BUF_READ):
debug("ATUSB_BUF_READ\n");
if (setup->wLength < 2) /* PHR+LQI */
return 0;
if (setup->wLength > MAX_PSDU+2) /* PHR+PSDU+LQI */
return 0;
spi_begin();
spi_send(AT86RF230_BUF_READ);
size = spi_recv();
if (size >= setup->wLength)
size = setup->wLength-1;
for (i = 0; i != size+1; i++)
buf[i] = spi_recv();
spi_end();
usb_send(&eps[0], buf, size+1, NULL, NULL);
return 1;
case ATUSB_TO_DEV(ATUSB_SRAM_WRITE):
debug("ATUSB_SRAM_WRITE\n");
if (setup->wIndex > SRAM_SIZE)
return 0;
if (setup->wIndex+setup->wLength > SRAM_SIZE)
return 0;
buf[0] = AT86RF230_SRAM_WRITE;
buf[1] = setup->wIndex;
size = setup->wLength+2;
usb_recv(&eps[0], buf+2, setup->wLength, do_buf_write, NULL);
return 1;
case ATUSB_FROM_DEV(ATUSB_SRAM_READ):
debug("ATUSB_SRAM_READ\n");
if (setup->wIndex > SRAM_SIZE)
return 0;
if (setup->wIndex+setup->wLength > SRAM_SIZE)
return 0;
spi_begin();
spi_send(AT86RF230_SRAM_READ);
spi_send(setup->wIndex);
for (i = 0; i != setup->wLength; i++)
buf[i] = spi_recv();
spi_end();
usb_send(&eps[0], buf, setup->wLength, NULL, NULL);
return 1;
case ATUSB_TO_DEV(ATUSB_SPI_WRITE):
size = setup->wLength+2;
if (size > sizeof(buf))
return 0;
buf[0] = setup->wValue;
buf[1] = setup->wIndex;
if (setup->wLength)
usb_recv(&eps[0], buf+2, setup->wLength,
do_buf_write, NULL);
else
do_buf_write(NULL);
return 1;
case ATUSB_FROM_DEV(ATUSB_SPI_WRITE2_SYNC):
spi_begin();
spi_send(setup->wValue);
spi_send(setup->wIndex);
spi_end();
buf[0] = irq_serial;
if (setup->wLength)
usb_send(&eps[0], buf, 1, NULL, NULL);
return 1;
case ATUSB_FROM_DEV(ATUSB_SPI_READ1):
case ATUSB_FROM_DEV(ATUSB_SPI_READ2):
spi_begin();
spi_send(setup->wValue);
if (req == ATUSB_FROM_DEV(ATUSB_SPI_READ2))
spi_send(setup->wIndex);
for (i = 0; i != setup->wLength; i++)
buf[i] = spi_recv();
spi_end();
usb_send(&eps[0], buf, setup->wLength, NULL, NULL);
return 1;
case ATUSB_TO_DEV(ATUSB_RX_MODE):
return mac_rx(setup->wValue);
case ATUSB_TO_DEV(ATUSB_TX):
return mac_tx(setup->wValue, setup->wIndex, setup->wLength);
default:
error("Unrecognized SETUP: 0x%02x 0x%02x ...\n",
setup->bmRequestType, setup->bRequest);
return 0;
}
}
static bool my_dfu_setup(const struct setup_request *setup)
{
switch (setup->bmRequestType | setup->bRequest << 8) {
case DFU_TO_DEV(DFU_DETACH):
/* @@@ should use wTimeout */
dfu.state = appDETACH;
return 1;
default:
return dfu_setup_common(setup);
}
}
static void my_set_interface(int nth)
{
if (nth) {
user_setup = my_dfu_setup;
user_get_descriptor = dfu_my_descr;
dfu.state = appIDLE;
} else {
user_setup = my_setup;
user_get_descriptor = sernum_get_descr;
}
}
static void my_reset(void)
{
if (dfu.state == appDETACH)
reset_cpu();
}
void ep0_init(void)
{
user_setup = my_setup;
user_set_interface = my_set_interface;
my_set_interface(0);
user_reset = my_reset;
}