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/* Some generel USB API commands, common between OpenPCD and OpenPICC
* (C) 2006 by Harald Welte <hwelte@hmw-consulting.de>
*/
#include <string.h>
#include <sys/types.h>
#include <openpcd.h>
#include <os/req_ctx.h>
#include <os/usb_handler.h>
#include <os/led.h>
#include <os/dbgu.h>
#include <os/main.h>
#include <os/flash.h>
#include <board.h>
#ifdef PCD
#include <rc632_highlevel.h>
#endif/*PCD*/
#define OPENPCD_API_VERSION (0x01)
#define CONFIG_AREA_ADDR ((void*)(AT91C_IFLASH + AT91C_IFLASH_SIZE - ENVIRONMENT_SIZE))
#define CONFIG_AREA_WORDS ( AT91C_IFLASH_PAGE_SIZE/sizeof(u_int32_t) )
volatile u_int32_t config_stack[ CONFIG_AREA_WORDS ];
static int gen_setenv(const void* buffer,int len)
{
volatile unsigned int i;
u_int32_t *dst;
if( len >= sizeof(config_stack) )
len=sizeof(config_stack);
memcpy(&config_stack,buffer,len);
/* retrieve current content to allow partial flashing */
/* flash changes */
dst=(u_int32_t*)CONFIG_AREA_ADDR;
for(i=0;i<CONFIG_AREA_WORDS;i++)
*dst++=config_stack[i];
flash_page(CONFIG_AREA_ADDR);
return len;
}
static int gen_getenv(void* buffer,int len)
{
if( len >= sizeof(config_stack) )
len=sizeof(config_stack);
memcpy(buffer,&config_stack,len);
return len;
}
static int gen_usb_rx(struct req_ctx *rctx)
{
struct openpcd_hdr *poh = (struct openpcd_hdr *) rctx->data;
struct openpcd_compile_version *ver =
(struct openpcd_compile_version *)poh->data;
u_int32_t len = rctx->tot_len-sizeof(*poh);
/* initialize transmit length to header length */
rctx->tot_len = sizeof(*poh);
switch (poh->cmd) {
case OPENPCD_CMD_GET_API_VERSION:
DEBUGP("CMD_GET_API_VERSION\n");
poh->flags &= OPENPCD_FLAG_RESPOND;
poh->val = OPENPCD_API_VERSION;
break;
case OPENPCD_CMD_GET_ENVIRONMENT:
poh->flags &= OPENPCD_FLAG_RESPOND;
poh->val = gen_getenv(&poh->data,poh->val);
rctx->tot_len += poh->val;
DEBUGP("CMD_GET_ENVIRONMENT(res_len=%u)\n", poh->val);
break;
case OPENPCD_CMD_SET_ENVIRONMENT:
DEBUGP("CMD_SET_ENVIRONMENT (in_len=%u)\n", len);
gen_setenv(&poh->data,len);
break;
case OPENPCD_CMD_RESET:
DEBUGP("CMD_RESET\n");
AT91F_RSTSoftReset(AT91C_BASE_RSTC, AT91C_RSTC_PROCRST|
AT91C_RSTC_PERRST|AT91C_RSTC_EXTRST);
break;
case OPENPCD_CMD_GET_VERSION:
DEBUGP("GET_VERSION\n");
poh->flags |= OPENPCD_FLAG_RESPOND;
memcpy(ver, &opcd_version, sizeof(*ver));
rctx->tot_len += sizeof(*ver);
break;
case OPENPCD_CMD_SET_LED:
DEBUGP("SET LED(%u,%u)\n", poh->reg, poh->val);
led_switch(poh->reg, poh->val);
break;
case OPENPCD_CMD_GET_SERIAL:
DEBUGP("GET SERIAL(");
poh->flags |= OPENPCD_FLAG_RESPOND;
#ifdef PCD
rctx->tot_len += 4;
if (rc632_get_serial(NULL, (u_int32_t *)poh->data) < 0) {
DEBUGP("ERROR) ");
return USB_ERR(USB_ERR_CMD_NOT_IMPL);
}
DEBUGP("%s)\n", hexdump(poh->data, 4));
#else
/* FIXME: where to get serial in PICC case */
return USB_ERR(USB_ERR_CMD_NOT_IMPL);
#endif
break;
default:
DEBUGP("UNKNOWN\n");
return USB_ERR(USB_ERR_CMD_UNKNOWN);
break;
}
if (poh->flags & OPENPCD_FLAG_RESPOND)
return USB_RET_RESPOND;
return 0;
}
void usbcmd_gen_init(void)
{
DEBUGP("Inititalizing usbcmd_gen_init\n");
/* setup FLASH write support for environment storage */
flash_init();
/* retrieve default data from flash */
memcpy(&config_stack,CONFIG_AREA_ADDR,sizeof(config_stack));
usb_hdlr_register(&gen_usb_rx, OPENPCD_CMD_CLS_GENERIC);
}
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