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1
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/* USB Device Firmware Update Implementation for OpenPCD
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* (C) 2006-2011 by Harald Welte <hwelte@hmw-consulting.de>
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*
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* This ought to be compliant to the USB DFU Spec 1.0 as available from
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* http://www.usb.org/developers/devclass_docs/usbdfu10.pdf
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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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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <errno.h>
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#include <usb_ch9.h>
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#include <usb_dfu.h>
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#include <board.h>
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#include <lib_AT91SAM7.h>
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#include <usb_strings_dfu.h>
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#include <dfu/dfu.h>
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#include <dfu/dbgu.h>
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#include <os/flash.h>
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34
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#include <os/pcd_enumerate.h>
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#include "../openpcd.h"
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36
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#include <compile.h>
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38
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39
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#define SAM7DFU_SIZE 0x4000
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40
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#define SAM7DFU_RAM_SIZE 0x2000
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41
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/* If debug is enabled, we need to access debug functions from flash
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* and therefore have to omit flashing */
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//#define DEBUG_DFU_NOFLASH
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45
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46
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#ifdef DEBUG
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47
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#define DEBUG_DFU_EP0
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48
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//#define DEBUG_DFU_RECV
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49
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#endif
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50
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#ifdef DEBUG_DFU_EP0
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52
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#define DEBUGE DEBUGP
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#else
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54
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#define DEBUGE(x, args ...)
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55
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#endif
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56
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57
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#ifdef DEBUG_DFU_RECV
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58
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#define DEBUGR DEBUGP
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#else
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60
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#define DEBUGR(x, args ...)
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61
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#endif
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62
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#define RET_NOTHING 0
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64
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#define RET_ZLP 1
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65
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#define RET_STALL 2
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66
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#define led1on() AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, OPENPCD_PIO_LED1)
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#define led1off() AT91F_PIO_SetOutput(AT91C_BASE_PIOA, OPENPCD_PIO_LED1)
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69
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#define led2on() AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, OPENPCD_PIO_LED2)
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#define led2off() AT91F_PIO_SetOutput(AT91C_BASE_PIOA, OPENPCD_PIO_LED2)
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72
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73
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static int past_manifest = 0;
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74
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static int switch_to_ram = 0; /* IRQ handler requests main to jump to RAM */
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static uint16_t usb_if_nr = 0; /* last SET_INTERFACE */
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static uint16_t usb_if_alt_nr = 0; /* last SET_INTERFACE AltSetting */
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static uint16_t usb_if_alt_nr_dnload = 0; /* AltSetting during last dnload */
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78
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static void __dfufunc udp_init(void)
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{
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/* Set the PLL USB Divider */
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AT91C_BASE_CKGR->CKGR_PLLR |= AT91C_CKGR_USBDIV_1;
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83
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/* Enables the 48MHz USB clock UDPCK and System Peripheral USB Clock */
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AT91C_BASE_PMC->PMC_SCER = AT91C_PMC_UDP;
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AT91C_BASE_PMC->PMC_PCER = (1 << AT91C_ID_UDP);
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/* Enable UDP PullUp (USB_DP_PUP) : enable & Clear of the
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* corresponding PIO Set in PIO mode and Configure in Output */
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#if defined(PCD)
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AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, OPENPCD_PIO_UDP_PUP);
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#endif
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AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, OPENPCD_PIO_UDP_PUPv4);
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}
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static void __dfufunc udp_ep0_send_zlp(void);
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97
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/* Send Data through the control endpoint */
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static void __dfufunc udp_ep0_send_data(const char *pData, uint32_t length,
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uint32_t window_length)
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{
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AT91PS_UDP pUdp = AT91C_BASE_UDP;
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uint32_t cpt = 0, len_remain;
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AT91_REG csr;
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105
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len_remain = MIN(length, window_length);
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DEBUGE("send_data: %u/%u bytes ", length, window_length);
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108
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do {
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cpt = MIN(len_remain, 8);
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len_remain -= cpt;
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112
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while (cpt--)
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pUdp->UDP_FDR[0] = *pData++;
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115
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if (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP) {
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pUdp->UDP_CSR[0] &= ~(AT91C_UDP_TXCOMP);
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while (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP) ;
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}
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120
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pUdp->UDP_CSR[0] |= AT91C_UDP_TXPKTRDY;
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do {
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csr = pUdp->UDP_CSR[0];
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124
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/* Data IN stage has been stopped by a status OUT */
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if (csr & AT91C_UDP_RX_DATA_BK0) {
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pUdp->UDP_CSR[0] &= ~(AT91C_UDP_RX_DATA_BK0);
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128
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DEBUGE("stopped by status out ");
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return;
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}
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} while (!(csr & AT91C_UDP_TXCOMP));
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132
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} while (len_remain);
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134
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if (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP) {
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pUdp->UDP_CSR[0] &= ~(AT91C_UDP_TXCOMP);
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while (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP) ;
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}
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139
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if ((length % 8) == 0 && length < window_length) {
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/* if the length is a multiple of the EP size, we need
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* to send another ZLP (zero-length packet) to tell the
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143
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* host the transfer has completed. */
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DEBUGE("set_txpktrdy_zlp ");
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udp_ep0_send_zlp();
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}
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147
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}
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148
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149
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/* receive data from EP0 */
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150
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static int __dfufunc udp_ep0_recv_data(uint8_t *data, uint16_t len)
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151
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{
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AT91PS_UDP pUdp = AT91C_BASE_UDP;
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AT91_REG csr;
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uint16_t i, num_rcv;
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uint32_t num_rcv_total = 0;
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156
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do {
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/* FIXME: do we need to check whether we've been interrupted
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159
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* by a RX SETUP stage? */
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do {
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csr = pUdp->UDP_CSR[0];
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DEBUGR("CSR=%08x ", csr);
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} while (!(csr & AT91C_UDP_RX_DATA_BK0)) ;
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164
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num_rcv = pUdp->UDP_CSR[0] >> 16;
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166
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167
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/* make sure we don't read more than requested */
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if (num_rcv_total + num_rcv > len)
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num_rcv = num_rcv_total - len;
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DEBUGR("num_rcv = %u ", num_rcv);
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for (i = 0; i < num_rcv; i++)
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*data++ = pUdp->UDP_FDR[0];
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pUdp->UDP_CSR[0] &= ~(AT91C_UDP_RX_DATA_BK0);
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num_rcv_total += num_rcv;
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/* we need to continue to pull data until we either receive
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* a packet < endpoint size or == 0 */
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180
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} while (num_rcv == 8 && num_rcv_total < len);
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DEBUGE("ep0_rcv_returning(%u total) ", num_rcv_total);
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183
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return num_rcv_total;
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}
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186
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/* Send zero length packet through the control endpoint */
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static void __dfufunc udp_ep0_send_zlp(void)
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{
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AT91PS_UDP pUdp = AT91C_BASE_UDP;
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pUdp->UDP_CSR[0] |= AT91C_UDP_TXPKTRDY;
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while (!(pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP)) ;
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pUdp->UDP_CSR[0] &= ~(AT91C_UDP_TXCOMP);
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while (pUdp->UDP_CSR[0] & AT91C_UDP_TXCOMP) ;
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195
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}
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196
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197
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/* Stall the control endpoint */
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static void __dfufunc udp_ep0_send_stall(void)
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199
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{
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AT91PS_UDP pUdp = AT91C_BASE_UDP;
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pUdp->UDP_CSR[0] |= AT91C_UDP_FORCESTALL;
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while (!(pUdp->UDP_CSR[0] & AT91C_UDP_ISOERROR)) ;
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pUdp->UDP_CSR[0] &= ~(AT91C_UDP_FORCESTALL | AT91C_UDP_ISOERROR);
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204
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while (pUdp->UDP_CSR[0] & (AT91C_UDP_FORCESTALL | AT91C_UDP_ISOERROR)) ;
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205
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}
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206
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207
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208
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static int first_download = 1;
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209
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static uint8_t *ptr, *ptr_max;
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210
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static __dfudata uint8_t dfu_status;
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211
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__dfudata uint32_t dfu_state = DFU_STATE_appIDLE;
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212
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static uint32_t pagebuf32[AT91C_IFLASH_PAGE_SIZE/4];
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213
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214
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static void chk_first_dnload_set_ptr(void)
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215
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{
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216
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if (!first_download)
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217
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return;
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218
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219
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switch (usb_if_alt_nr) {
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220
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case 0:
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221
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ptr = (uint8_t *) AT91C_IFLASH + SAM7DFU_SIZE;
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222
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ptr_max = AT91C_IFLASH + AT91C_IFLASH_SIZE - ENVIRONMENT_SIZE;
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223
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break;
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224
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case 1:
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225
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ptr = (uint8_t *) AT91C_IFLASH;
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226
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ptr_max = AT91C_IFLASH + SAM7DFU_SIZE;
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227
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break;
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228
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case 2:
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229
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ptr = (uint8_t *) AT91C_ISRAM + SAM7DFU_RAM_SIZE;
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230
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ptr_max = AT91C_ISRAM + AT91C_ISRAM_SIZE;
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231
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break;
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232
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}
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233
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first_download = 0;
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234
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}
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235
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236
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static int __dfufunc handle_dnload_flash(uint16_t __unused val, uint16_t len)
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237
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{
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238
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volatile uint32_t *p;
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239
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uint8_t *pagebuf = (uint8_t *) pagebuf32;
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240
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int i;
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241
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242
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DEBUGE("download ");
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243
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244
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if (len > AT91C_IFLASH_PAGE_SIZE) {
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245
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/* Too big. Not that we'd really care, but it's a
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246
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* DFU protocol violation */
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247
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DEBUGP("length exceeds flash page size ");
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248
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dfu_state = DFU_STATE_dfuERROR;
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249
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dfu_status = DFU_STATUS_errADDRESS;
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250
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return RET_STALL;
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251
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}
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252
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if (len & 0x3) {
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253
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/* reject non-four-byte-aligned writes */
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254
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DEBUGP("not four-byte-aligned length ");
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255
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dfu_state = DFU_STATE_dfuERROR;
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256
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dfu_status = DFU_STATUS_errADDRESS;
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257
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return RET_STALL;
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|
258
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}
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259
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chk_first_dnload_set_ptr();
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260
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p = (volatile uint32_t *)ptr;
|
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261
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|
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262
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if (len == 0) {
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263
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DEBUGP("zero-size write -> MANIFEST_SYNC ");
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264
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if (((unsigned long)p % AT91C_IFLASH_PAGE_SIZE) != 0)
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265
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flash_page(p);
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266
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dfu_state = DFU_STATE_dfuMANIFEST_SYNC;
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267
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first_download = 1;
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268
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return RET_ZLP;
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269
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}
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|
270
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|
|
271
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/* check if we would exceed end of memory */
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|
272
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if (ptr + len > ptr_max) {
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273
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DEBUGP("end of write exceeds flash end ");
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274
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dfu_state = DFU_STATE_dfuERROR;
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|
275
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dfu_status = DFU_STATUS_errADDRESS;
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|
276
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return RET_STALL;
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|
277
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}
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|
278
|
|
|
279
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DEBUGP("try_to_recv=%u ", len);
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|
280
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udp_ep0_recv_data(pagebuf, len);
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281
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|
|
282
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DEBUGR(hexdump(pagebuf, len));
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|
283
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|
|
284
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#ifndef DEBUG_DFU_NOFLASH
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|
285
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DEBUGP("copying ");
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|
286
|
/* we can only access the write buffer with correctly aligned
|
|
287
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* 32bit writes ! */
|
|
288
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for (i = 0; i < len/4; i++) {
|
|
289
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*p++ = pagebuf32[i];
|
|
290
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/* If we have filled a page buffer, flash it */
|
|
291
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if (((unsigned long)p % AT91C_IFLASH_PAGE_SIZE) == 0) {
|
|
292
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DEBUGP("page_full ");
|
|
293
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flash_page(p-1);
|
|
294
|
}
|
|
295
|
}
|
|
296
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ptr = (uint8_t *) p;
|
|
297
|
#endif
|
|
298
|
|
|
299
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return RET_ZLP;
|
|
300
|
}
|
|
301
|
|
|
302
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static int __dfufunc handle_dnload_ram(uint16_t __unused val, uint16_t len)
|
|
303
|
{
|
|
304
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DEBUGE("download ");
|
|
305
|
|
|
306
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if (len > AT91C_IFLASH_PAGE_SIZE) {
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|
307
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/* Too big. Not that we'd really care, but it's a
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|
308
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* DFU protocol violation */
|
|
309
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DEBUGP("length exceeds flash page size ");
|
|
310
|
dfu_state = DFU_STATE_dfuERROR;
|
|
311
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dfu_status = DFU_STATUS_errADDRESS;
|
|
312
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return RET_STALL;
|
|
313
|
}
|
|
314
|
chk_first_dnload_set_ptr();
|
|
315
|
|
|
316
|
if (len == 0) {
|
|
317
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DEBUGP("zero-size write -> MANIFEST_SYNC ");
|
|
318
|
dfu_state = DFU_STATE_dfuMANIFEST_SYNC;
|
|
319
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first_download = 1;
|
|
320
|
return RET_ZLP;
|
|
321
|
}
|
|
322
|
|
|
323
|
/* check if we would exceed end of memory */
|
|
324
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if (ptr + len >= ptr_max) {
|
|
325
|
DEBUGP("end of write exceeds RAM end ");
|
|
326
|
dfu_state = DFU_STATE_dfuERROR;
|
|
327
|
dfu_status = DFU_STATUS_errADDRESS;
|
|
328
|
return RET_STALL;
|
|
329
|
}
|
|
330
|
|
|
331
|
/* drectly copy into RAM */
|
|
332
|
DEBUGP("try_to_recv=%u ", len);
|
|
333
|
udp_ep0_recv_data(ptr, len);
|
|
334
|
|
|
335
|
DEBUGR(hexdump(ptr, len));
|
|
336
|
|
|
337
|
ptr += len;
|
|
338
|
|
|
339
|
return RET_ZLP;
|
|
340
|
}
|
|
341
|
|
|
342
|
static int __dfufunc handle_dnload(uint16_t val, uint16_t len)
|
|
343
|
{
|
|
344
|
usb_if_alt_nr_dnload = usb_if_alt_nr;
|
|
345
|
switch (usb_if_alt_nr) {
|
|
346
|
case 2:
|
|
347
|
return handle_dnload_ram(val, len);
|
|
348
|
default:
|
|
349
|
return handle_dnload_flash(val, len);
|
|
350
|
}
|
|
351
|
}
|
|
352
|
|
|
353
|
#define AT91C_IFLASH_END ((uint8_t *)AT91C_IFLASH + AT91C_IFLASH_SIZE)
|
|
354
|
static __dfufunc int handle_upload(uint16_t __unused val, uint16_t len)
|
|
355
|
{
|
|
356
|
DEBUGE("upload ");
|
|
357
|
if (len > AT91C_IFLASH_PAGE_SIZE) {
|
|
358
|
/* Too big */
|
|
359
|
dfu_state = DFU_STATE_dfuERROR;
|
|
360
|
dfu_status = DFU_STATUS_errADDRESS;
|
|
361
|
udp_ep0_send_stall();
|
|
362
|
return -EINVAL;
|
|
363
|
}
|
|
364
|
chk_first_dnload_set_ptr();
|
|
365
|
|
|
366
|
if (ptr + len > AT91C_IFLASH_END) {
|
|
367
|
len = AT91C_IFLASH_END - (uint8_t *)ptr;
|
|
368
|
first_download = 1;
|
|
369
|
}
|
|
370
|
|
|
371
|
udp_ep0_send_data((char *)ptr, len, len);
|
|
372
|
ptr+= len;
|
|
373
|
|
|
374
|
return len;
|
|
375
|
}
|
|
376
|
|
|
377
|
static __dfufunc void handle_getstatus(void)
|
|
378
|
{
|
|
379
|
struct dfu_status dstat;
|
|
380
|
uint32_t fsr = AT91F_MC_EFC_GetStatus(AT91C_BASE_MC);
|
|
381
|
|
|
382
|
DEBUGE("getstatus(fsr=0x%08x) ", fsr);
|
|
383
|
|
|
384
|
switch (dfu_state) {
|
|
385
|
case DFU_STATE_dfuDNLOAD_SYNC:
|
|
386
|
case DFU_STATE_dfuDNBUSY:
|
|
387
|
if (fsr & AT91C_MC_PROGE) {
|
|
388
|
DEBUGE("errPROG ");
|
|
389
|
dfu_status = DFU_STATUS_errPROG;
|
|
390
|
dfu_state = DFU_STATE_dfuERROR;
|
|
391
|
} else if (fsr & AT91C_MC_LOCKE) {
|
|
392
|
DEBUGE("errWRITE ");
|
|
393
|
dfu_status = DFU_STATUS_errWRITE;
|
|
394
|
dfu_state = DFU_STATE_dfuERROR;
|
|
395
|
} else if (fsr & AT91C_MC_FRDY) {
|
|
396
|
DEBUGE("DNLOAD_IDLE ");
|
|
397
|
dfu_state = DFU_STATE_dfuDNLOAD_IDLE;
|
|
398
|
} else {
|
|
399
|
DEBUGE("DNBUSY ");
|
|
400
|
dfu_state = DFU_STATE_dfuDNBUSY;
|
|
401
|
}
|
|
402
|
break;
|
|
403
|
case DFU_STATE_dfuMANIFEST_SYNC:
|
|
404
|
dfu_state = DFU_STATE_dfuMANIFEST;
|
|
405
|
break;
|
|
406
|
}
|
|
407
|
|
|
408
|
/* send status response */
|
|
409
|
dstat.bStatus = dfu_status;
|
|
410
|
dstat.bState = dfu_state;
|
|
411
|
dstat.iString = 0;
|
|
412
|
/* FIXME: set dstat.bwPollTimeout */
|
|
413
|
|
|
414
|
udp_ep0_send_data((char *)&dstat, sizeof(dstat), sizeof(dstat));
|
|
415
|
}
|
|
416
|
|
|
417
|
static void __dfufunc handle_getstate(void)
|
|
418
|
{
|
|
419
|
uint8_t u8 = dfu_state;
|
|
420
|
DEBUGE("getstate ");
|
|
421
|
|
|
422
|
udp_ep0_send_data((char *)&u8, sizeof(u8), sizeof(u8));
|
|
423
|
}
|
|
424
|
|
|
425
|
/* callback function for DFU requests */
|
|
426
|
int __dfufunc dfu_ep0_handler(uint8_t __unused req_type, uint8_t req,
|
|
427
|
uint16_t val, uint16_t len)
|
|
428
|
{
|
|
429
|
int rc, ret = RET_NOTHING;
|
|
430
|
|
|
431
|
DEBUGE("old_state = %u ", dfu_state);
|
|
432
|
|
|
433
|
switch (dfu_state) {
|
|
434
|
case DFU_STATE_appIDLE:
|
|
435
|
switch (req) {
|
|
436
|
case USB_REQ_DFU_GETSTATUS:
|
|
437
|
handle_getstatus();
|
|
438
|
break;
|
|
439
|
case USB_REQ_DFU_GETSTATE:
|
|
440
|
handle_getstate();
|
|
441
|
break;
|
|
442
|
case USB_REQ_DFU_DETACH:
|
|
443
|
dfu_state = DFU_STATE_appDETACH;
|
|
444
|
ret = RET_ZLP;
|
|
445
|
goto out;
|
|
446
|
break;
|
|
447
|
default:
|
|
448
|
ret = RET_STALL;
|
|
449
|
}
|
|
450
|
break;
|
|
451
|
case DFU_STATE_appDETACH:
|
|
452
|
switch (req) {
|
|
453
|
case USB_REQ_DFU_GETSTATUS:
|
|
454
|
handle_getstatus();
|
|
455
|
break;
|
|
456
|
case USB_REQ_DFU_GETSTATE:
|
|
457
|
handle_getstate();
|
|
458
|
break;
|
|
459
|
default:
|
|
460
|
dfu_state = DFU_STATE_appIDLE;
|
|
461
|
ret = RET_STALL;
|
|
462
|
goto out;
|
|
463
|
break;
|
|
464
|
}
|
|
465
|
/* FIXME: implement timer to return to appIDLE */
|
|
466
|
break;
|
|
467
|
case DFU_STATE_dfuIDLE:
|
|
468
|
switch (req) {
|
|
469
|
case USB_REQ_DFU_DNLOAD:
|
|
470
|
if (len == 0) {
|
|
471
|
dfu_state = DFU_STATE_dfuERROR;
|
|
472
|
ret = RET_STALL;
|
|
473
|
goto out;
|
|
474
|
}
|
|
475
|
dfu_state = DFU_STATE_dfuDNLOAD_SYNC;
|
|
476
|
ptr = (uint8_t *) AT91C_IFLASH + SAM7DFU_SIZE;
|
|
477
|
ret = handle_dnload(val, len);
|
|
478
|
break;
|
|
479
|
case USB_REQ_DFU_UPLOAD:
|
|
480
|
ptr = (uint8_t *) AT91C_IFLASH + SAM7DFU_SIZE;
|
|
481
|
dfu_state = DFU_STATE_dfuUPLOAD_IDLE;
|
|
482
|
handle_upload(val, len);
|
|
483
|
break;
|
|
484
|
case USB_REQ_DFU_ABORT:
|
|
485
|
/* no zlp? */
|
|
486
|
ret = RET_ZLP;
|
|
487
|
break;
|
|
488
|
case USB_REQ_DFU_GETSTATUS:
|
|
489
|
handle_getstatus();
|
|
490
|
break;
|
|
491
|
case USB_REQ_DFU_GETSTATE:
|
|
492
|
handle_getstate();
|
|
493
|
break;
|
|
494
|
default:
|
|
495
|
dfu_state = DFU_STATE_dfuERROR;
|
|
496
|
ret = RET_STALL;
|
|
497
|
goto out;
|
|
498
|
break;
|
|
499
|
}
|
|
500
|
break;
|
|
501
|
case DFU_STATE_dfuDNLOAD_SYNC:
|
|
502
|
switch (req) {
|
|
503
|
case USB_REQ_DFU_GETSTATUS:
|
|
504
|
handle_getstatus();
|
|
505
|
/* FIXME: state transition depending on block completeness */
|
|
506
|
break;
|
|
507
|
case USB_REQ_DFU_GETSTATE:
|
|
508
|
handle_getstate();
|
|
509
|
break;
|
|
510
|
default:
|
|
511
|
dfu_state = DFU_STATE_dfuERROR;
|
|
512
|
ret = RET_STALL;
|
|
513
|
goto out;
|
|
514
|
}
|
|
515
|
break;
|
|
516
|
case DFU_STATE_dfuDNBUSY:
|
|
517
|
switch (req) {
|
|
518
|
case USB_REQ_DFU_GETSTATUS:
|
|
519
|
/* FIXME: only accept getstatus if bwPollTimeout
|
|
520
|
* has elapsed */
|
|
521
|
handle_getstatus();
|
|
522
|
break;
|
|
523
|
default:
|
|
524
|
dfu_state = DFU_STATE_dfuERROR;
|
|
525
|
ret = RET_STALL;
|
|
526
|
goto out;
|
|
527
|
}
|
|
528
|
break;
|
|
529
|
case DFU_STATE_dfuDNLOAD_IDLE:
|
|
530
|
switch (req) {
|
|
531
|
case USB_REQ_DFU_DNLOAD:
|
|
532
|
dfu_state = DFU_STATE_dfuDNLOAD_SYNC;
|
|
533
|
ret = handle_dnload(val, len);
|
|
534
|
break;
|
|
535
|
case USB_REQ_DFU_ABORT:
|
|
536
|
dfu_state = DFU_STATE_dfuIDLE;
|
|
537
|
ret = RET_ZLP;
|
|
538
|
break;
|
|
539
|
case USB_REQ_DFU_GETSTATUS:
|
|
540
|
handle_getstatus();
|
|
541
|
break;
|
|
542
|
case USB_REQ_DFU_GETSTATE:
|
|
543
|
handle_getstate();
|
|
544
|
break;
|
|
545
|
default:
|
|
546
|
dfu_state = DFU_STATE_dfuERROR;
|
|
547
|
ret = RET_STALL;
|
|
548
|
break;
|
|
549
|
}
|
|
550
|
break;
|
|
551
|
case DFU_STATE_dfuMANIFEST_SYNC:
|
|
552
|
switch (req) {
|
|
553
|
case USB_REQ_DFU_GETSTATUS:
|
|
554
|
handle_getstatus();
|
|
555
|
break;
|
|
556
|
case USB_REQ_DFU_GETSTATE:
|
|
557
|
handle_getstate();
|
|
558
|
break;
|
|
559
|
default:
|
|
560
|
dfu_state = DFU_STATE_dfuERROR;
|
|
561
|
ret = RET_STALL;
|
|
562
|
break;
|
|
563
|
}
|
|
564
|
break;
|
|
565
|
case DFU_STATE_dfuMANIFEST:
|
|
566
|
switch (req) {
|
|
567
|
case USB_REQ_DFU_GETSTATUS:
|
|
568
|
/* we don't want to change to WAIT_RST, as it
|
|
569
|
* would mean that we can not support another
|
|
570
|
* DFU transaction before doing the actual
|
|
571
|
* reset. Instead, we switch to idle and note
|
|
572
|
* that we've already been through MANIFST in
|
|
573
|
* the global variable 'past_manifest'.
|
|
574
|
*/
|
|
575
|
//dfu_state = DFU_STATE_dfuMANIFEST_WAIT_RST;
|
|
576
|
dfu_state = DFU_STATE_dfuIDLE;
|
|
577
|
past_manifest = 1;
|
|
578
|
handle_getstatus();
|
|
579
|
break;
|
|
580
|
case USB_REQ_DFU_GETSTATE:
|
|
581
|
handle_getstate();
|
|
582
|
break;
|
|
583
|
default:
|
|
584
|
dfu_state = DFU_STATE_dfuERROR;
|
|
585
|
ret = RET_STALL;
|
|
586
|
break;
|
|
587
|
}
|
|
588
|
break;
|
|
589
|
case DFU_STATE_dfuMANIFEST_WAIT_RST:
|
|
590
|
/* we should never go here */
|
|
591
|
break;
|
|
592
|
case DFU_STATE_dfuUPLOAD_IDLE:
|
|
593
|
switch (req) {
|
|
594
|
case USB_REQ_DFU_UPLOAD:
|
|
595
|
/* state transition if less data then requested */
|
|
596
|
rc = handle_upload(val, len);
|
|
597
|
if (rc >= 0 && rc < len)
|
|
598
|
dfu_state = DFU_STATE_dfuIDLE;
|
|
599
|
break;
|
|
600
|
case USB_REQ_DFU_ABORT:
|
|
601
|
dfu_state = DFU_STATE_dfuIDLE;
|
|
602
|
/* no zlp? */
|
|
603
|
ret = RET_ZLP;
|
|
604
|
break;
|
|
605
|
case USB_REQ_DFU_GETSTATUS:
|
|
606
|
handle_getstatus();
|
|
607
|
break;
|
|
608
|
case USB_REQ_DFU_GETSTATE:
|
|
609
|
handle_getstate();
|
|
610
|
break;
|
|
611
|
default:
|
|
612
|
dfu_state = DFU_STATE_dfuERROR;
|
|
613
|
ret = RET_STALL;
|
|
614
|
break;
|
|
615
|
}
|
|
616
|
break;
|
|
617
|
case DFU_STATE_dfuERROR:
|
|
618
|
switch (req) {
|
|
619
|
case USB_REQ_DFU_GETSTATUS:
|
|
620
|
handle_getstatus();
|
|
621
|
break;
|
|
622
|
case USB_REQ_DFU_GETSTATE:
|
|
623
|
handle_getstate();
|
|
624
|
break;
|
|
625
|
case USB_REQ_DFU_CLRSTATUS:
|
|
626
|
dfu_state = DFU_STATE_dfuIDLE;
|
|
627
|
dfu_status = DFU_STATUS_OK;
|
|
628
|
/* no zlp? */
|
|
629
|
ret = RET_ZLP;
|
|
630
|
break;
|
|
631
|
default:
|
|
632
|
dfu_state = DFU_STATE_dfuERROR;
|
|
633
|
ret = RET_STALL;
|
|
634
|
break;
|
|
635
|
}
|
|
636
|
break;
|
|
637
|
}
|
|
638
|
|
|
639
|
out:
|
|
640
|
DEBUGE("new_state = %u\r\n", dfu_state);
|
|
641
|
|
|
642
|
switch (ret) {
|
|
643
|
case RET_NOTHING:
|
|
644
|
break;
|
|
645
|
case RET_ZLP:
|
|
646
|
udp_ep0_send_zlp();
|
|
647
|
break;
|
|
648
|
case RET_STALL:
|
|
649
|
udp_ep0_send_stall();
|
|
650
|
break;
|
|
651
|
}
|
|
652
|
return 0;
|
|
653
|
}
|
|
654
|
|
|
655
|
static uint8_t cur_config;
|
|
656
|
|
|
657
|
/* USB DFU Device descriptor in DFU mode */
|
|
658
|
__dfustruct const struct usb_device_descriptor dfu_dev_descriptor = {
|
|
659
|
.bLength = USB_DT_DEVICE_SIZE,
|
|
660
|
.bDescriptorType = USB_DT_DEVICE,
|
|
661
|
.bcdUSB = 0x0100,
|
|
662
|
.bDeviceClass = 0x00,
|
|
663
|
.bDeviceSubClass = 0x00,
|
|
664
|
.bDeviceProtocol = 0x00,
|
|
665
|
.bMaxPacketSize0 = 8,
|
|
666
|
.idVendor = USB_VENDOR_ID,
|
|
667
|
.idProduct = USB_PRODUCT_ID,
|
|
668
|
.bcdDevice = 0x0000,
|
|
669
|
#ifdef CONFIG_USB_STRING
|
|
670
|
.iManufacturer = 1,
|
|
671
|
.iProduct = 2,
|
|
672
|
#else
|
|
673
|
.iManufacturer = 0,
|
|
674
|
.iProduct = 0,
|
|
675
|
#endif
|
|
676
|
.iSerialNumber = 0x00,
|
|
677
|
.bNumConfigurations = 0x01,
|
|
678
|
};
|
|
679
|
|
|
680
|
/* USB DFU Config descriptor in DFU mode */
|
|
681
|
__dfustruct const struct _dfu_desc dfu_cfg_descriptor = {
|
|
682
|
.ucfg = {
|
|
683
|
.bLength = USB_DT_CONFIG_SIZE,
|
|
684
|
.bDescriptorType = USB_DT_CONFIG,
|
|
685
|
.wTotalLength = USB_DT_CONFIG_SIZE +
|
|
686
|
3* USB_DT_INTERFACE_SIZE +
|
|
687
|
USB_DT_DFU_SIZE,
|
|
688
|
.bNumInterfaces = 1,
|
|
689
|
.bConfigurationValue = 1,
|
|
690
|
#ifdef CONFIG_USB_STRING
|
|
691
|
.iConfiguration = 3,
|
|
692
|
#else
|
|
693
|
.iConfiguration = 0,
|
|
694
|
#endif
|
|
695
|
.bmAttributes = USB_CONFIG_ATT_ONE,
|
|
696
|
.bMaxPower = 100,
|
|
697
|
},
|
|
698
|
.uif[0] = {
|
|
699
|
.bLength = USB_DT_INTERFACE_SIZE,
|
|
700
|
.bDescriptorType = USB_DT_INTERFACE,
|
|
701
|
.bInterfaceNumber = 0x00,
|
|
702
|
.bAlternateSetting = 0x00,
|
|
703
|
.bNumEndpoints = 0x00,
|
|
704
|
.bInterfaceClass = 0xfe,
|
|
705
|
.bInterfaceSubClass = 0x01,
|
|
706
|
.bInterfaceProtocol = 0x02,
|
|
707
|
#ifdef CONFIG_USB_STRING
|
|
708
|
.iInterface = 4,
|
|
709
|
#else
|
|
710
|
.iInterface = 0,
|
|
711
|
#endif
|
|
712
|
},
|
|
713
|
.uif[1] = {
|
|
714
|
.bLength = USB_DT_INTERFACE_SIZE,
|
|
715
|
.bDescriptorType = USB_DT_INTERFACE,
|
|
716
|
.bInterfaceNumber = 0x00,
|
|
717
|
.bAlternateSetting = 0x01,
|
|
718
|
.bNumEndpoints = 0x00,
|
|
719
|
.bInterfaceClass = 0xfe,
|
|
720
|
.bInterfaceSubClass = 0x01,
|
|
721
|
.bInterfaceProtocol = 0x02,
|
|
722
|
#ifdef CONFIG_USB_STRING
|
|
723
|
.iInterface = 5,
|
|
724
|
#else
|
|
725
|
.iInterface = 0,
|
|
726
|
#endif
|
|
727
|
},
|
|
728
|
.uif[2] = {
|
|
729
|
.bLength = USB_DT_INTERFACE_SIZE,
|
|
730
|
.bDescriptorType = USB_DT_INTERFACE,
|
|
731
|
.bInterfaceNumber = 0x00,
|
|
732
|
.bAlternateSetting = 0x02,
|
|
733
|
.bNumEndpoints = 0x00,
|
|
734
|
.bInterfaceClass = 0xfe,
|
|
735
|
.bInterfaceSubClass = 0x01,
|
|
736
|
.bInterfaceProtocol = 0x02,
|
|
737
|
#ifdef CONFIG_USB_STRING
|
|
738
|
.iInterface = 6,
|
|
739
|
#else
|
|
740
|
.iInterface = 0,
|
|
741
|
#endif
|
|
742
|
},
|
|
743
|
|
|
744
|
.func_dfu = DFU_FUNC_DESC,
|
|
745
|
};
|
|
746
|
|
|
747
|
|
|
748
|
/* minimal USB EP0 handler in DFU mode */
|
|
749
|
static __dfufunc void dfu_udp_ep0_handler(void)
|
|
750
|
{
|
|
751
|
AT91PS_UDP pUDP = AT91C_BASE_UDP;
|
|
752
|
uint8_t bmRequestType, bRequest;
|
|
753
|
uint16_t wValue, wIndex, wLength, wStatus;
|
|
754
|
uint32_t csr = pUDP->UDP_CSR[0];
|
|
755
|
|
|
756
|
DEBUGE("CSR=0x%04x ", csr);
|
|
757
|
|
|
758
|
if (csr & AT91C_UDP_STALLSENT) {
|
|
759
|
DEBUGE("ACK_STALLSENT ");
|
|
760
|
pUDP->UDP_CSR[0] = ~AT91C_UDP_STALLSENT;
|
|
761
|
}
|
|
762
|
|
|
763
|
if (csr & AT91C_UDP_RX_DATA_BK0) {
|
|
764
|
DEBUGE("ACK_BANK0 ");
|
|
765
|
pUDP->UDP_CSR[0] &= ~AT91C_UDP_RX_DATA_BK0;
|
|
766
|
}
|
|
767
|
|
|
768
|
if (!(csr & AT91C_UDP_RXSETUP)) {
|
|
769
|
DEBUGE("no setup packet\r\n");
|
|
770
|
return;
|
|
771
|
}
|
|
772
|
|
|
773
|
DEBUGE("len=%d ", csr >> 16);
|
|
774
|
if (csr >> 16 == 0) {
|
|
775
|
DEBUGE("empty packet\r\n");
|
|
776
|
return;
|
|
777
|
}
|
|
778
|
|
|
779
|
bmRequestType = pUDP->UDP_FDR[0];
|
|
780
|
bRequest = pUDP->UDP_FDR[0];
|
|
781
|
wValue = (pUDP->UDP_FDR[0] & 0xFF);
|
|
782
|
wValue |= (pUDP->UDP_FDR[0] << 8);
|
|
783
|
wIndex = (pUDP->UDP_FDR[0] & 0xFF);
|
|
784
|
wIndex |= (pUDP->UDP_FDR[0] << 8);
|
|
785
|
wLength = (pUDP->UDP_FDR[0] & 0xFF);
|
|
786
|
wLength |= (pUDP->UDP_FDR[0] << 8);
|
|
787
|
|
|
788
|
DEBUGE("bmRequestType=0x%2x ", bmRequestType);
|
|
789
|
|
|
790
|
if (bmRequestType & 0x80) {
|
|
791
|
DEBUGE("DATA_IN=1 ");
|
|
792
|
pUDP->UDP_CSR[0] |= AT91C_UDP_DIR;
|
|
793
|
while (!(pUDP->UDP_CSR[0] & AT91C_UDP_DIR)) ;
|
|
794
|
}
|
|
795
|
pUDP->UDP_CSR[0] &= ~AT91C_UDP_RXSETUP;
|
|
796
|
while ((pUDP->UDP_CSR[0] & AT91C_UDP_RXSETUP)) ;
|
|
797
|
|
|
798
|
/* Handle supported standard device request Cf Table 9-3 in USB
|
|
799
|
* speciication Rev 1.1 */
|
|
800
|
switch ((bRequest << 8) | bmRequestType) {
|
|
801
|
uint8_t desc_type, desc_index;
|
|
802
|
case STD_GET_DESCRIPTOR:
|
|
803
|
DEBUGE("GET_DESCRIPTOR ");
|
|
804
|
desc_type = wValue >> 8;
|
|
805
|
desc_index = wValue & 0xff;
|
|
806
|
switch (desc_type) {
|
|
807
|
case USB_DT_DEVICE:
|
|
808
|
/* Return Device Descriptor */
|
|
809
|
udp_ep0_send_data((const char *)
|
|
810
|
&dfu_dev_descriptor,
|
|
811
|
sizeof(dfu_dev_descriptor), wLength);
|
|
812
|
break;
|
|
813
|
case USB_DT_CONFIG:
|
|
814
|
/* Return Configuration Descriptor */
|
|
815
|
udp_ep0_send_data((const char *)
|
|
816
|
&dfu_cfg_descriptor,
|
|
817
|
sizeof(dfu_cfg_descriptor), wLength);
|
|
818
|
break;
|
|
819
|
case USB_DT_STRING:
|
|
820
|
/* Return String Descriptor */
|
|
821
|
if (desc_index > ARRAY_SIZE(usb_strings)) {
|
|
822
|
udp_ep0_send_stall();
|
|
823
|
break;
|
|
824
|
}
|
|
825
|
DEBUGE("bLength=%u, wLength=%u ",
|
|
826
|
usb_strings[desc_index]->bLength, wLength);
|
|
827
|
udp_ep0_send_data((const char *) usb_strings[desc_index],
|
|
828
|
usb_strings[desc_index]->bLength, wLength);
|
|
829
|
break;
|
|
830
|
case USB_DT_CS_DEVICE:
|
|
831
|
/* Return Function descriptor */
|
|
832
|
udp_ep0_send_data((const char *) &dfu_cfg_descriptor.func_dfu,
|
|
833
|
sizeof(dfu_cfg_descriptor.func_dfu), wLength);
|
|
834
|
break;
|
|
835
|
default:
|
|
836
|
udp_ep0_send_stall();
|
|
837
|
break;
|
|
838
|
}
|
|
839
|
break;
|
|
840
|
case STD_SET_ADDRESS:
|
|
841
|
DEBUGE("SET_ADDRESS ");
|
|
842
|
udp_ep0_send_zlp();
|
|
843
|
pUDP->UDP_FADDR = (AT91C_UDP_FEN | wValue);
|
|
844
|
pUDP->UDP_GLBSTATE = (wValue) ? AT91C_UDP_FADDEN : 0;
|
|
845
|
break;
|
|
846
|
case STD_SET_CONFIGURATION:
|
|
847
|
DEBUGE("SET_CONFIG ");
|
|
848
|
if (wValue) {
|
|
849
|
DEBUGE("VALUE!=0 ");
|
|
850
|
}
|
|
851
|
|
|
852
|
cur_config = wValue;
|
|
853
|
udp_ep0_send_zlp();
|
|
854
|
pUDP->UDP_GLBSTATE =
|
|
855
|
(wValue) ? AT91C_UDP_CONFG : AT91C_UDP_FADDEN;
|
|
856
|
pUDP->UDP_CSR[1] =
|
|
857
|
(wValue) ? (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_BULK_OUT) :
|
|
858
|
0;
|
|
859
|
pUDP->UDP_CSR[2] =
|
|
860
|
(wValue) ? (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_BULK_IN) : 0;
|
|
861
|
pUDP->UDP_CSR[3] =
|
|
862
|
(wValue) ? (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_INT_IN) : 0;
|
|
863
|
pUDP->UDP_IER = (AT91C_UDP_EPINT0|AT91C_UDP_EPINT1|
|
|
864
|
AT91C_UDP_EPINT2|AT91C_UDP_EPINT3);
|
|
865
|
break;
|
|
866
|
case STD_GET_CONFIGURATION:
|
|
867
|
DEBUGE("GET_CONFIG ");
|
|
868
|
/* Table 9.4 wLength One */
|
|
869
|
udp_ep0_send_data((char *)&(cur_config), sizeof(cur_config), 1);
|
|
870
|
break;
|
|
871
|
case STD_GET_STATUS_ZERO:
|
|
872
|
DEBUGE("GET_STATUS_ZERO ");
|
|
873
|
wStatus = 0;
|
|
874
|
/* Table 9.4 wLength Two */
|
|
875
|
udp_ep0_send_data((char *)&wStatus, sizeof(wStatus), 2);
|
|
876
|
break;
|
|
877
|
case STD_GET_STATUS_INTERFACE:
|
|
878
|
DEBUGE("GET_STATUS_INTERFACE ");
|
|
879
|
wStatus = 0;
|
|
880
|
/* Table 9.4 wLength Two */
|
|
881
|
udp_ep0_send_data((char *)&wStatus, sizeof(wStatus), 2);
|
|
882
|
break;
|
|
883
|
case STD_GET_STATUS_ENDPOINT:
|
|
884
|
DEBUGE("GET_STATUS_ENDPOINT(EPidx=%u) ", wIndex&0x0f);
|
|
885
|
wStatus = 0;
|
|
886
|
wIndex &= 0x0F;
|
|
887
|
if ((pUDP->UDP_GLBSTATE & AT91C_UDP_CONFG) && (wIndex == 0)) {
|
|
888
|
wStatus =
|
|
889
|
(pUDP->UDP_CSR[wIndex] & AT91C_UDP_EPEDS) ? 0 : 1;
|
|
890
|
/* Table 9.4 wLength Two */
|
|
891
|
udp_ep0_send_data((char *)&wStatus, sizeof(wStatus), 2);
|
|
892
|
} else if ((pUDP->UDP_GLBSTATE & AT91C_UDP_FADDEN)
|
|
893
|
&& (wIndex == 0)) {
|
|
894
|
wStatus =
|
|
895
|
(pUDP->UDP_CSR[wIndex] & AT91C_UDP_EPEDS) ? 0 : 1;
|
|
896
|
/* Table 9.4 wLength Two */
|
|
897
|
udp_ep0_send_data((char *)&wStatus, sizeof(wStatus), 2);
|
|
898
|
} else
|
|
899
|
udp_ep0_send_stall();
|
|
900
|
break;
|
|
901
|
case STD_SET_FEATURE_ZERO:
|
|
902
|
DEBUGE("SET_FEATURE_ZERO ");
|
|
903
|
udp_ep0_send_stall();
|
|
904
|
break;
|
|
905
|
case STD_SET_FEATURE_INTERFACE:
|
|
906
|
DEBUGE("SET_FEATURE_INTERFACE ");
|
|
907
|
udp_ep0_send_zlp();
|
|
908
|
break;
|
|
909
|
case STD_SET_FEATURE_ENDPOINT:
|
|
910
|
DEBUGE("SET_FEATURE_ENDPOINT ");
|
|
911
|
udp_ep0_send_stall();
|
|
912
|
break;
|
|
913
|
case STD_CLEAR_FEATURE_ZERO:
|
|
914
|
DEBUGE("CLEAR_FEATURE_ZERO ");
|
|
915
|
udp_ep0_send_stall();
|
|
916
|
break;
|
|
917
|
case STD_CLEAR_FEATURE_INTERFACE:
|
|
918
|
DEBUGE("CLEAR_FEATURE_INTERFACE ");
|
|
919
|
udp_ep0_send_zlp();
|
|
920
|
break;
|
|
921
|
case STD_CLEAR_FEATURE_ENDPOINT:
|
|
922
|
DEBUGE("CLEAR_FEATURE_ENDPOINT(EPidx=%u) ", wIndex & 0x0f);
|
|
923
|
udp_ep0_send_stall();
|
|
924
|
break;
|
|
925
|
case STD_SET_INTERFACE:
|
|
926
|
DEBUGE("SET INTERFACE(if=%d, alt=%d) ", wIndex, wValue);
|
|
927
|
/* store the interface number somewhere, once
|
|
928
|
* we need to support DFU flashing DFU */
|
|
929
|
usb_if_alt_nr = wValue;
|
|
930
|
usb_if_nr = wIndex;
|
|
931
|
udp_ep0_send_zlp();
|
|
932
|
break;
|
|
933
|
default:
|
|
934
|
DEBUGE("DEFAULT(req=0x%02x, type=0x%02x) ",
|
|
935
|
bRequest, bmRequestType);
|
|
936
|
if ((bmRequestType & 0x3f) == USB_TYPE_DFU) {
|
|
937
|
dfu_ep0_handler(bmRequestType, bRequest,
|
|
938
|
wValue, wLength);
|
|
939
|
} else
|
|
940
|
udp_ep0_send_stall();
|
|
941
|
break;
|
|
942
|
}
|
|
943
|
DEBUGE("\r\n");
|
|
944
|
}
|
|
945
|
|
|
946
|
/* minimal USB IRQ handler in DFU mode */
|
|
947
|
static __dfufunc void dfu_udp_irq(void)
|
|
948
|
{
|
|
949
|
AT91PS_UDP pUDP = AT91C_BASE_UDP;
|
|
950
|
AT91_REG isr = pUDP->UDP_ISR;
|
|
951
|
led1on();
|
|
952
|
|
|
953
|
if (isr & AT91C_UDP_ENDBUSRES) {
|
|
954
|
led2on();
|
|
955
|
pUDP->UDP_IER = AT91C_UDP_EPINT0;
|
|
956
|
/* reset all endpoints */
|
|
957
|
pUDP->UDP_RSTEP = (unsigned int)-1;
|
|
958
|
pUDP->UDP_RSTEP = 0;
|
|
959
|
/* Enable the function */
|
|
960
|
pUDP->UDP_FADDR = AT91C_UDP_FEN;
|
|
961
|
/* Configure endpoint 0 */
|
|
962
|
pUDP->UDP_CSR[0] = (AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_CTRL);
|
|
963
|
cur_config = 0;
|
|
964
|
|
|
965
|
if (dfu_state == DFU_STATE_dfuMANIFEST_WAIT_RST ||
|
|
966
|
dfu_state == DFU_STATE_dfuMANIFEST ||
|
|
967
|
past_manifest) {
|
|
968
|
AT91F_DBGU_Printk("sam7dfu: switching to APP mode\r\n");
|
|
969
|
switch (usb_if_alt_nr_dnload) {
|
|
970
|
case 2:
|
|
971
|
switch_to_ram = 1;
|
|
972
|
break;
|
|
973
|
default:
|
|
974
|
/* reset back into the main application */
|
|
975
|
AT91F_RSTSoftReset(AT91C_BASE_RSTC,
|
|
976
|
AT91C_RSTC_PROCRST|
|
|
977
|
AT91C_RSTC_PERRST|
|
|
978
|
AT91C_RSTC_EXTRST);
|
|
979
|
break;
|
|
980
|
}
|
|
981
|
}
|
|
982
|
}
|
|
983
|
|
|
984
|
if (isr & AT91C_UDP_EPINT0)
|
|
985
|
dfu_udp_ep0_handler();
|
|
986
|
|
|
987
|
/* clear all interrupts */
|
|
988
|
pUDP->UDP_ICR = isr;
|
|
989
|
|
|
990
|
AT91F_AIC_ClearIt(AT91C_BASE_AIC, AT91C_ID_UDP);
|
|
991
|
|
|
992
|
led1off();
|
|
993
|
}
|
|
994
|
|
|
995
|
/* this is only called once before DFU mode, no __dfufunc required */
|
|
996
|
static __noreturn void dfu_switch(void)
|
|
997
|
{
|
|
998
|
DEBUGE("\r\nsam7dfu: switching to DFU mode\r\n");
|
|
999
|
|
|
1000
|
dfu_state = DFU_STATE_appDETACH;
|
|
1001
|
AT91F_RSTSoftReset(AT91C_BASE_RSTC, AT91C_RSTC_PROCRST|
|
|
1002
|
AT91C_RSTC_PERRST|AT91C_RSTC_EXTRST);
|
|
1003
|
|
|
1004
|
/* We should never reach here, but anyway avoid returning to the
|
|
1005
|
* caller since he doesn't expect us to do so */
|
|
1006
|
while (1) ;
|
|
1007
|
}
|
|
1008
|
|
|
1009
|
void __dfufunc dfu_main(void)
|
|
1010
|
{
|
|
1011
|
AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, OPENPCD_PIO_LED1);
|
|
1012
|
AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, OPENPCD_PIO_LED2);
|
|
1013
|
led1off();
|
|
1014
|
led2off();
|
|
1015
|
|
|
1016
|
AT91F_DBGU_Init();
|
|
1017
|
AT91F_DBGU_Printk("\n\r\n\rsam7dfu - AT91SAM7 USB DFU bootloader\n\r"
|
|
1018
|
"(C) 2006-2011 by Harald Welte <hwelte@hmw-consulting.de>\n\r"
|
|
1019
|
"This software is FREE SOFTWARE licensed under GNU GPL\n\r");
|
|
1020
|
AT91F_DBGU_Printk("Version " COMPILE_SVNREV
|
|
1021
|
" compiled " COMPILE_DATE
|
|
1022
|
" by " COMPILE_BY "\n\r\n\r");
|
|
1023
|
|
|
1024
|
udp_init();
|
|
1025
|
|
|
1026
|
dfu_state = DFU_STATE_dfuIDLE;
|
|
1027
|
|
|
1028
|
/* This implements
|
|
1029
|
AT91F_AIC_ConfigureIt(AT91C_BASE_AIC, AT91C_ID_UDP,
|
|
1030
|
OPENPCD_IRQ_PRIO_UDP,
|
|
1031
|
AT91C_AIC_SRCTYPE_INT_HIGH_LEVEL, dfu_udp_irq);
|
|
1032
|
*/
|
|
1033
|
AT91PS_AIC pAic = AT91C_BASE_AIC;
|
|
1034
|
pAic->AIC_IDCR = 1 << AT91C_ID_UDP;
|
|
1035
|
pAic->AIC_SVR[AT91C_ID_UDP] = (unsigned int) &dfu_udp_irq;
|
|
1036
|
pAic->AIC_SMR[AT91C_ID_UDP] = AT91C_AIC_SRCTYPE_INT_HIGH_LEVEL |
|
|
1037
|
OPENPCD_IRQ_PRIO_UDP;
|
|
1038
|
pAic->AIC_ICCR = 1 << AT91C_ID_UDP;
|
|
1039
|
|
|
1040
|
AT91F_AIC_EnableIt(AT91C_BASE_AIC, AT91C_ID_UDP);
|
|
1041
|
|
|
1042
|
/* End-of-Bus-Reset is always enabled */
|
|
1043
|
|
|
1044
|
/* Clear for set the Pull up resistor */
|
|
1045
|
#if defined(PCD)
|
|
1046
|
AT91F_PIO_SetOutput(AT91C_BASE_PIOA, OPENPCD_PIO_UDP_PUP);
|
|
1047
|
#endif
|
|
1048
|
AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, OPENPCD_PIO_UDP_PUPv4);
|
|
1049
|
|
|
1050
|
flash_init();
|
|
1051
|
|
|
1052
|
AT91F_DBGU_Printk("You may now start the DFU up/download process\r\n");
|
|
1053
|
/* do nothing, since all of DFU is interrupt driven */
|
|
1054
|
int i = 0;
|
|
1055
|
while (1) {
|
|
1056
|
/* Occasionally reset watchdog */
|
|
1057
|
i = (i+1) % 10000;
|
|
1058
|
if( i== 0) {
|
|
1059
|
AT91F_WDTRestart(AT91C_BASE_WDTC);
|
|
1060
|
}
|
|
1061
|
if (switch_to_ram) {
|
|
1062
|
void (*ram_app_entry)(void);
|
|
1063
|
int j;
|
|
1064
|
for (j = 0; j < 32; j++)
|
|
1065
|
AT91F_AIC_DisableIt(AT91C_BASE_AIC, j);
|
|
1066
|
/* jump into RAM */
|
|
1067
|
AT91F_DBGU_Printk("JUMP TO RAM\r\n");
|
|
1068
|
ram_app_entry = AT91C_ISRAM + SAM7DFU_RAM_SIZE;
|
|
1069
|
ram_app_entry();
|
|
1070
|
}
|
|
1071
|
}
|
|
1072
|
}
|
|
1073
|
|
|
1074
|
const struct dfuapi __dfufunctab dfu_api = {
|
|
1075
|
.udp_init = &udp_init,
|
|
1076
|
.ep0_send_data = &udp_ep0_send_data,
|
|
1077
|
.ep0_send_zlp = &udp_ep0_send_zlp,
|
|
1078
|
.ep0_send_stall = &udp_ep0_send_stall,
|
|
1079
|
.dfu_ep0_handler = &dfu_ep0_handler,
|
|
1080
|
.dfu_switch = &dfu_switch,
|
|
1081
|
.dfu_state = &dfu_state,
|
|
1082
|
.dfu_dev_descriptor = &dfu_dev_descriptor,
|
|
1083
|
.dfu_cfg_descriptor = &dfu_cfg_descriptor,
|
|
1084
|
};
|
|
1085
|
|
|
1086
|
/* just for testing */
|
|
1087
|
int foo = 12345;
|
