107 lines
3.3 KiB
C
107 lines
3.3 KiB
C
/*
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* Copyright 2013 Benjamin Vernoux <titanmkd@gmail.com>
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*
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* This file is part of HackRF.
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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, or (at your option)
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* 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; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include "hackrf_core.h"
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#include <stdint.h>
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#include "rom_iap.h"
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#include "w25q80bv.h"
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#define ROM_IAP_ADDR (0x10400100)
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#define ROM_IAP_UNDEF_ADDR (0x12345678)
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#define ROM_OTP_PART_ID_ADDR (0x40045000)
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typedef void (* IAP_t)(uint32_t [],uint32_t[]);
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typedef struct {
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const IAP_t IAP; /* If equal to 0x12345678 IAP not implemented */
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/* Other TBD */
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} *pENTRY_ROM_API_t;
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#define pROM_API ((pENTRY_ROM_API_t)ROM_IAP_ADDR)
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/*
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See Errata sheet ES_LPC43X0_A.pdf (LPC4350/30/20/10 Rev A)
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3.5 IAP.1: In-Application Programming API not present on flashless parts
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Introduction:
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The LPC43x0 microcontrollers contain an APIfor In-Application Programming of flash
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memory. This API also allows identification of the part.
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Problem:
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On the LPC43x0 microcontrollers, the IAP API is not present. The ISP interface is present
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which allows the part to be identified externally (via the UART) but part identification is not
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possible internally using the IAP call because it is not implemented.
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The first word of the Part ID can be read directly from OTP at 0x40045000. The second word of the Part ID is always
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'0' on flashless parts. */
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bool iap_is_implemented(void)
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{
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bool res;
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if( *((uint32_t*)ROM_IAP_ADDR) != ROM_IAP_UNDEF_ADDR )
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{
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res = true;
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}else
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{
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res = false;
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}
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return res;
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}
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isp_iap_ret_code_t iap_cmd_call(iap_cmd_res_t* iap_cmd_res)
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{
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uint32_t* p_u32_data;
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if( iap_is_implemented() )
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{
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pROM_API->IAP( (uint32_t*)&iap_cmd_res->cmd_param, (uint32_t*)&iap_cmd_res->status_res);
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}else
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{
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/*
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Alternative way to retrieve Part Id on MCU with no IAP
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Read Serial No => Read Unique ID in SPIFI (only compatible with W25Q80BV
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*/
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spi_bus_start(spi_flash.bus, &ssp_config_w25q80bv);
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w25q80bv_setup(&spi_flash);
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switch(iap_cmd_res->cmd_param.command_code)
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{
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case IAP_CMD_READ_PART_ID_NO:
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p_u32_data = (uint32_t*)ROM_OTP_PART_ID_ADDR;
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iap_cmd_res->status_res.iap_result[0] = p_u32_data[0];
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iap_cmd_res->status_res.iap_result[1] = p_u32_data[1];
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iap_cmd_res->status_res.status_ret = CMD_SUCCESS;
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break;
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case IAP_CMD_READ_SERIAL_NO:
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/* Only 64bits used */
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iap_cmd_res->status_res.iap_result[0] = 0;
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iap_cmd_res->status_res.iap_result[1] = 0;
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w25q80bv_get_unique_id(&spi_flash, (w25q80bv_unique_id_t*)&iap_cmd_res->status_res.iap_result[2] );
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iap_cmd_res->status_res.status_ret = CMD_SUCCESS;
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break;
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default:
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iap_cmd_res->status_res.status_ret = ERROR_IAP_NOT_IMPLEMENTED;
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break;
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}
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}
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return iap_cmd_res->status_res.status_ret;
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}
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