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81 lines
2.8 KiB
81 lines
2.8 KiB
10 years ago
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/*
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Some flash handling cgi routines. Used for reading the existing flash and updating the ESPFS image.
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*/
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/*
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* ----------------------------------------------------------------------------
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* "THE BEER-WARE LICENSE" (Revision 42):
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* Jeroen Domburg <jeroen@spritesmods.com> wrote this file. As long as you retain
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* this notice you can do whatever you want with this stuff. If we meet some day,
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* and you think this stuff is worth it, you can buy me a beer in return.
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* ----------------------------------------------------------------------------
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*/
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#include <string.h>
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#include <osapi.h>
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#include "user_interface.h"
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#include "mem.h"
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#include "httpd.h"
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#include "cgiflash.h"
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#include "io.h"
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#include <ip_addr.h>
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#include "espmissingincludes.h"
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#include "../include/httpdconfig.h"
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//Cgi that reads the SPI flash. Assumes 512KByte flash.
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int ICACHE_FLASH_ATTR cgiReadFlash(HttpdConnData *connData) {
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int *pos=(int *)&connData->cgiData;
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if (connData->conn==NULL) {
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//Connection aborted. Clean up.
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return HTTPD_CGI_DONE;
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}
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if (*pos==0) {
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os_printf("Start flash download.\n");
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httpdStartResponse(connData, 200);
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httpdHeader(connData, "Content-Type", "application/bin");
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httpdEndHeaders(connData);
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*pos=0x40200000;
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return HTTPD_CGI_MORE;
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}
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//Send 1K of flash per call. We will get called again if we haven't sent 512K yet.
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espconn_sent(connData->conn, (uint8 *)(*pos), 1024);
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*pos+=1024;
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if (*pos>=0x40200000+(512*1024)) return HTTPD_CGI_DONE; else return HTTPD_CGI_MORE;
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}
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//Cgi that allows the ESPFS image to be replaced via http POST
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int ICACHE_FLASH_ATTR cgiUploadEspfs(HttpdConnData *connData) {
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if (connData->conn==NULL) {
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//Connection aborted. Clean up.
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return HTTPD_CGI_DONE;
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}
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if(connData->post->len > ESPFS_SIZE){
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// The uploaded file is too large
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os_printf("ESPFS file too large\n");
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httpdSend(connData, "HTTP/1.0 500 Internal Server Error\r\nServer: esp8266-httpd/0.3\r\nContent-Type: text/plain\r\nContent-Length: 24\r\n\r\nESPFS image loo large.\r\n", -1);
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return HTTPD_CGI_DONE;
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}
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// The source should be 4byte aligned, so go ahead and flash whatever we have
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int address = ESPFS_POS + connData->post->received - connData->post->buffLen;
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if(address % SPI_FLASH_SEC_SIZE == 0){
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// We need to erase this block
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os_printf("Erasing flash at %d\n", address/SPI_FLASH_SEC_SIZE);
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spi_flash_erase_sector(address/SPI_FLASH_SEC_SIZE);
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}
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// Write the data
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os_printf("Writing at: 0x%x\n", address);
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spi_flash_write(address, (uint32 *)connData->post->buff, connData->post->buffLen);
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os_printf("Wrote %d bytes (%dB of %d)\n", connData->post->buffSize, connData->post->received, connData->post->len);//&connData->postBuff));
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if (connData->post->received == connData->post->len){
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httpdSend(connData, "Finished uploading", -1);
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return HTTPD_CGI_DONE;
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} else {
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return HTTPD_CGI_MORE;
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}
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}
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