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/* Some generel USB API commands, common between OpenPCD and OpenPICC
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* (C) 2006 by Harald Welte <hwelte@hmw-consulting.de>
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*/
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#include <string.h>
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#include <sys/types.h>
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#include <openpcd.h>
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#include <os/req_ctx.h>
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#include <os/usb_handler.h>
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#include <os/led.h>
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#include <os/dbgu.h>
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#include <os/main.h>
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#include <os/flash.h>
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#include <board.h>
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#ifdef PCD
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#include <rc632_highlevel.h>
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#endif/*PCD*/
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#define OPENPCD_API_VERSION (0x01)
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#define CONFIG_AREA_ADDR ((void*)(AT91C_IFLASH + AT91C_IFLASH_SIZE - ENVIRONMENT_SIZE))
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#define CONFIG_AREA_WORDS ( AT91C_IFLASH_PAGE_SIZE/sizeof(uint32_t) )
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volatile uint32_t config_stack[ CONFIG_AREA_WORDS ];
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static int gen_setenv(const void* buffer,int len)
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{
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volatile unsigned int i;
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uint32_t *dst;
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if( len >= sizeof(config_stack) )
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len=sizeof(config_stack);
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memcpy(&config_stack,buffer,len);
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/* retrieve current content to allow partial flashing */
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/* flash changes */
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dst=(uint32_t*)CONFIG_AREA_ADDR;
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for(i=0;i<CONFIG_AREA_WORDS;i++)
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*dst++=config_stack[i];
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flash_page(CONFIG_AREA_ADDR);
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return len;
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}
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static int gen_getenv(void* buffer,int len)
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{
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if( len >= sizeof(config_stack) )
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len=sizeof(config_stack);
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memcpy(buffer,&config_stack,len);
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return len;
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}
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static int gen_usb_rx(struct req_ctx *rctx)
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{
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struct openpcd_hdr *poh = (struct openpcd_hdr *) rctx->data;
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struct openpcd_compile_version *ver =
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(struct openpcd_compile_version *)poh->data;
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uint32_t len = rctx->tot_len-sizeof(*poh);
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/* initialize transmit length to header length */
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rctx->tot_len = sizeof(*poh);
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switch (poh->cmd) {
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case OPENPCD_CMD_GET_API_VERSION:
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DEBUGP("CMD_GET_API_VERSION\n");
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poh->flags &= OPENPCD_FLAG_RESPOND;
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poh->val = OPENPCD_API_VERSION;
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break;
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case OPENPCD_CMD_GET_ENVIRONMENT:
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poh->flags &= OPENPCD_FLAG_RESPOND;
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poh->val = gen_getenv(&poh->data,poh->val);
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rctx->tot_len += poh->val;
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DEBUGP("CMD_GET_ENVIRONMENT(res_len=%u)\n", poh->val);
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break;
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case OPENPCD_CMD_SET_ENVIRONMENT:
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DEBUGP("CMD_SET_ENVIRONMENT (in_len=%u)\n", len);
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gen_setenv(&poh->data,len);
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break;
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case OPENPCD_CMD_RESET:
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DEBUGP("CMD_RESET\n");
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AT91F_RSTSoftReset(AT91C_BASE_RSTC, AT91C_RSTC_PROCRST|
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AT91C_RSTC_PERRST|AT91C_RSTC_EXTRST);
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break;
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case OPENPCD_CMD_GET_VERSION:
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DEBUGP("GET_VERSION\n");
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poh->flags |= OPENPCD_FLAG_RESPOND;
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memcpy(ver, &opcd_version, sizeof(*ver));
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rctx->tot_len += sizeof(*ver);
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break;
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case OPENPCD_CMD_SET_LED:
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DEBUGP("SET LED(%u,%u)\n", poh->reg, poh->val);
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led_switch(poh->reg, poh->val);
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break;
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case OPENPCD_CMD_GET_SERIAL:
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DEBUGP("GET SERIAL(");
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poh->flags |= OPENPCD_FLAG_RESPOND;
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#ifdef PCD
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rctx->tot_len += 4;
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if (rc632_get_serial(NULL, (uint32_t *)poh->data) < 0) {
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DEBUGP("ERROR) ");
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return USB_ERR(USB_ERR_CMD_NOT_IMPL);
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}
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DEBUGP("%s)\n", hexdump(poh->data, 4));
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#else
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/* FIXME: where to get serial in PICC case */
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return USB_ERR(USB_ERR_CMD_NOT_IMPL);
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#endif
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break;
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121
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default:
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DEBUGP("UNKNOWN\n");
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return USB_ERR(USB_ERR_CMD_UNKNOWN);
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break;
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}
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127
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if (poh->flags & OPENPCD_FLAG_RESPOND)
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return USB_RET_RESPOND;
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return 0;
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}
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132
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133
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void usbcmd_gen_init(void)
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{
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DEBUGP("Inititalizing usbcmd_gen_init\n\r");
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136
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/* setup FLASH write support for environment storage */
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flash_init();
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138
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/* retrieve default data from flash */
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memcpy(&config_stack,CONFIG_AREA_ADDR,sizeof(config_stack));
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141
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142
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usb_hdlr_register(&gen_usb_rx, OPENPCD_CMD_CLS_GENERIC);
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143
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}
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144
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