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atusb/fw2: support device -> host side of the ATUSB EP0 protocol
- ep0.c: the ATUSB EP0 protocol engine - Makefile (OBJS): added ep0.o - atusb.c (main): initialize the EP0 protocol - spi.h: whitespace cleanup usb/patches/support-vendor-requests.patch: - usb/ctrl.c (ctrl_handler): also pass vendor-specific requests to the class handler - class/CDC/cdc.c (cdc_req_handler): reject vendor requests
This commit is contained in:
Werner Almesberger
parent
06f6174966
commit
ec21e4ba47
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@ -16,7 +16,7 @@ USB_OBJS = $(FreakUSB)/usb/usb.o $(FreakUSB)/usb/ctrl.o \
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$(FreakUSB)/usb/usb_buf.o \
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$(FreakUSB)/hw/at90usbxx2/ep.o $(FreakUSB)/hw/at90usbxx2/hw.o \
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$(FreakUSB)/hw/at90usbxx2/isr.o
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OBJS = atusb.o spi.o descr.o $(USB_OBJS)
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OBJS = atusb.o spi.o descr.o ep0.o $(USB_OBJS)
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CFLAGS += -I../fw/include \
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-I$(FreakUSB)/usb -I$(FreakUSB)/hw/at90usbxx2 \
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@ -13,6 +13,7 @@
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void reset_rf(void);
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void ep0_init(void);
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void reset_rf(void)
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@ -68,6 +69,7 @@ int main(void)
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CLR(LED);
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usb_init();
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ep0_init();
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hw_init();
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while (1)
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241
atusb/fw2/ep0.c
Normal file
241
atusb/fw2/ep0.c
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@ -0,0 +1,241 @@
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/*
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* atspi/ep0.c - EP0 extension protocol
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*
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* Written 2008-2010 by Werner Almesberger
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* Copyright 2008-2010 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 <stdint.h>
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#include <avr/io.h>
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//#ifndef NULL
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//#define NULL 0
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//#endif
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//#include "regs.h"
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//#include "uart.h"
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//#include "usb.h"
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#include "freakusb.h"
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#include "at86rf230.h"
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#include "atusb/ep0.h"
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//#include "version.h"
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#include "io.h"
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#include "spi.h"
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#define HW_TYPE 2 /* @@@ needs more work */
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static const char *build_date = "today";
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static unsigned build_number = 42;
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extern void reset_rf(void);
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#define debug(...)
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#define error(...)
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static const uint8_t id[] = { EP0ATUSB_MAJOR, EP0ATUSB_MINOR, HW_TYPE };
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static uint8_t buf[MAX_PSDU+3]; /* command, PHDR, and LQI */
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static uint8_t size;
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static void do_buf_write(void *user)
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{
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uint8_t i;
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spi_begin();
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for (i = 0; i != size; i++)
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spi_send(buf[i]);
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spi_end();
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}
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static void do_usb_send(const uint8_t *data, int len)
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{
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int i;
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for (i = 0; i++ != len; data++) {
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usb_buf_write(EP_CTRL, *data);
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if (!(i % MAX_BUF_SZ))
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ep_write(EP_CTRL);
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}
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ep_write(EP_CTRL);
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}
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#define usb_send(ep, buf, len, arg1, arg2) do_usb_send(buf, len)
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#define usb_recv(ep, buf, len, fn, arg) /* later */
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#define BUILD_OFFSET 7 /* '#' plus "65535" plus ' ' */
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/* keep things a similar to the original as possible for now */
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#define setup_request req_t
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#define setup req
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#define bmRequestType type
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#define bRequest req
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#define wValue val
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#define wLength len
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#define wIndex idx
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#define __reentrant
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static int my_setup(struct setup_request *setup) __reentrant
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{
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unsigned tmp;
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uint8_t i;
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switch (setup->bmRequestType | setup->bRequest << 8) {
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case ATUSB_FROM_DEV(ATUSB_ID):
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debug("ATUSB_ID\n");
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if (setup->wLength > 3)
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return 0;
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usb_send(&ep0, id, setup->wLength, NULL, NULL);
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return 1;
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case ATUSB_FROM_DEV(ATUSB_BUILD):
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debug("ATUSB_BUILD\n");
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tmp = build_number;
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for (i = BUILD_OFFSET-2; tmp; i--) {
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buf[i] = (tmp % 10)+'0';
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tmp /= 10;
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}
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buf[i] = '#';
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buf[BUILD_OFFSET-1] = ' ';
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for (size = 0; build_date[size]; size++)
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buf[BUILD_OFFSET+size] = build_date[size];
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size += BUILD_OFFSET-i;
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if (size > setup->wLength)
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return 0;
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usb_send(&ep0, buf+i, size, NULL, NULL);
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return 1;
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#ifdef NOTYET
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case ATUSB_TO_DEV(ATUSB_RESET):
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debug("ATUSB_RESET\n");
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RSTSRC = SWRSF;
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while (1);
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#endif
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case ATUSB_TO_DEV(ATUSB_RF_RESET):
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debug("ATUSB_RF_RESET\n");
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reset_rf();
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return 1;
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#ifdef NOTYET
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case ATUSB_FROM_DEV(ATUSB_POLL_INT):
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debug("ATUSB_POLL_INT\n");
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if (setup->wLength < 1)
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return 0;
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*buf = IRQ_RF;
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usb_send(&ep0, buf, 1, NULL, NULL);
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return 1;
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#endif
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case ATUSB_TO_DEV(ATUSB_REG_WRITE):
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debug("ATUSB_REG_WRITE\n");
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spi_begin();
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spi_send(AT86RF230_REG_WRITE | setup->wIndex);
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spi_send(setup->wValue);
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spi_end();
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return 1;
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case ATUSB_FROM_DEV(ATUSB_REG_READ):
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debug("ATUSB_REG_READ\n");
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spi_begin();
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spi_send(AT86RF230_REG_READ | setup->wIndex);
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*buf = spi_recv();
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spi_end();
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usb_send(&ep0, buf, 1, NULL, NULL);
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return 1;
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case ATUSB_TO_DEV(ATUSB_BUF_WRITE):
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debug("ATUSB_BUF_WRITE\n");
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if (setup->wLength < 1)
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return 0;
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if (setup->wLength > MAX_PSDU)
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return 0;
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buf[0] = AT86RF230_BUF_WRITE;
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buf[1] = setup->wLength;
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size = setup->wLength+2;
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usb_recv(&ep0, buf+2, setup->wLength, do_buf_write, NULL);
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return 1;
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case ATUSB_FROM_DEV(ATUSB_BUF_READ):
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debug("ATUSB_BUF_READ\n");
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if (setup->wLength < 2) /* PHR+LQI */
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return 0;
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if (setup->wLength > MAX_PSDU+2) /* PHR+PSDU+LQI */
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return 0;
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spi_begin();
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spi_send(AT86RF230_BUF_READ);
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size = spi_recv();
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if (size >= setup->wLength)
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size = setup->wLength-1;
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for (i = 0; i != size+1; i++)
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buf[i] = spi_recv();
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spi_end();
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usb_send(&ep0, buf, size+1, NULL, NULL);
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return 1;
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case ATUSB_TO_DEV(ATUSB_SRAM_WRITE):
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debug("ATUSB_SRAM_WRITE\n");
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if (setup->wIndex > SRAM_SIZE)
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return 0;
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if (setup->wIndex+setup->wLength > SRAM_SIZE)
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return 0;
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buf[0] = AT86RF230_SRAM_WRITE;
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buf[1] = setup->wIndex;
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size = setup->wLength+2;
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usb_recv(&ep0, buf+2, setup->wLength, do_buf_write, NULL);
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return 1;
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case ATUSB_TO_DEV(ATUSB_SRAM_READ):
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debug("ATUSB_SRAM_READ\n");
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if (setup->wIndex > SRAM_SIZE)
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return 0;
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if (setup->wIndex+setup->wLength > SRAM_SIZE)
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return 0;
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spi_begin();
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spi_send(AT86RF230_SRAM_READ);
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spi_send(setup->wIndex);
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for (i = 0; i != size; i++)
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buf[i] = spi_recv();
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spi_end();
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usb_send(&ep0, buf, size, NULL, NULL);
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return 1;
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default:
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error("Unrecognized SETUP: 0x%02x 0x%02x ...\n",
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setup->bmRequestType, setup->bRequest);
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return 0;
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}
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}
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static void class_init(void)
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{
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}
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static void req_handler(req_t *req)
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{
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if (!my_setup(req))
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ep_set_stall(EP_CTRL);
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}
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static void rx_handler(void)
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{
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}
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void ep0_init(void)
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{
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usb_reg_class_drvr(class_init, req_handler, rx_handler);
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}
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@ -3,6 +3,7 @@
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#include <stdint.h>
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void spi_begin(void);
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uint8_t spi_io(uint8_t v);
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void spi_end(void);
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@ -2,3 +2,4 @@ cleanup.patch
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no-cdc.patch
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no-vbus-detect.patch
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correct-array-size.patch
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support-vendor-requests.patch
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37
atusb/fw2/usb/patches/support-vendor-requests.patch
Normal file
37
atusb/fw2/usb/patches/support-vendor-requests.patch
Normal file
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@ -0,0 +1,37 @@
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Index: fw4/class/CDC/cdc.c
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===================================================================
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--- fw4.orig/class/CDC/cdc.c 2011-02-08 17:11:11.000000000 -0300
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+++ fw4/class/CDC/cdc.c 2011-02-08 17:12:30.000000000 -0300
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@@ -76,7 +76,10 @@
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{
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U8 i;
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usb_pcb_t *pcb = usb_pcb_get();
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-
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+
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+ if (req->type & TYPE_CLASS)
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+ goto reject;
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+
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switch (req->req)
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{
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case GET_LINE_CODING:
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@@ -127,6 +130,7 @@
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break;
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default:
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+ reject:
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ep_set_stall(EP_CTRL);
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break;
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}
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Index: fw4/usb/ctrl.c
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===================================================================
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--- fw4.orig/usb/ctrl.c 2011-02-08 17:09:02.000000000 -0300
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+++ fw4/usb/ctrl.c 2011-02-08 17:12:51.000000000 -0300
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@@ -277,7 +277,7 @@
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reqp = (req_t *)req;
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// decode the standard request
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- if (!(reqp->type & TYPE_CLASS))
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+ if (!(reqp->type & (TYPE_CLASS | TYPE_VENDOR)))
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{
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// this is a standard request
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switch (reqp->req)
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