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192.168.1.100 / R306 / fce8b443ffbe51a3071bec167c35735c9cd3971b / . / boot / common / src / uboot / downloader / cmd_dl_ram.c
blob: f1ac2c35f8361ea2b97a0b2aefa572b08b566e54 [file] [log] [blame]
yuezonghe824eb0c2024-06-27 02:32:26 -0700[diff] [blame]1
2/*******************************************************************************
3 * Copyright (C) 2016, ZIXC Corporation.
4 *
5 * File Name:cmd_compat_write.c
6 * File Mark:
7 * Description:
8 * Others:
9 * Version: 1.0
10 * Author: zangxiaofeng
11 * Date: 2013-3-13
12 * History 1:
13 * Date:
14 * Version:
15 * Author:
16 * Modification:
17 * History 2:
18 ********************************************************************************/
19
20
21/****************************************************************************
22* Include files
23****************************************************************************/
24#include <common.h>
25#include <command.h>
26#include <net.h>
27#include <jffs2/load_kernel.h>
28#include "downloader_config.h"
29#include "downloader_nand.h"
30#include "downloader_serial.h"
31#include "errno.h"
32
33extern int downloader_readline (char * buffer);
34extern char *tsp_console_buffer;
35/*******************************************************************************
36 * Function:do_ram_write
37 * Description:
38 * Parameters:
39 * Input:
40 *
41 * Output:
42 *
43 * Returns:
44 *
45 *
46 * Others:
47 ********************************************************************************/
48int do_ram_write( unsigned int offset, unsigned int size)
49{
50 char *ack = tsp_console_buffer;
51 unsigned int addr = 0;
52 unsigned int leftWriteLength = 0;
53 unsigned int curWriteLength = 0;
54#ifdef CONFIG_LOAD_CRC
55 unsigned long crc = 0;
56 unsigned long crc1 = 0;
57#endif
58
59 addr = offset ;
60
61 if(size == 0)
62 {
63 sprintf(ack,"FAIL INVALID LENGTH");
64 downloader_serial_write(ack, strlen(ack)+1);
65 return EINVAL;
66 }
67 leftWriteLength = size;
68
69 while(leftWriteLength>0)
70 {
71 curWriteLength = MIN(leftWriteLength,DOWNLOADER_BUFFER_SIZE);
72#ifdef CONFIG_LOAD_CRC
73 sprintf(ack,"DATACRC %08x",curWriteLength);
74#else
75 sprintf(ack,"DATA %08x",curWriteLength);
76#endif
77 downloader_serial_write(ack, strlen(ack)+1);
78#ifdef CONFIG_LOAD_CRC
79
80 downloader_serial_read_actuallen((char *)DOWNLOADER_BUFFER_BASE, curWriteLength+4);
81 memcpy(( char *)addr,(char *)DOWNLOADER_BUFFER_BASE, curWriteLength+4 );
82
83
84 crc = crc32(0,(unsigned char*)addr,curWriteLength);
85 memcpy((unsigned char *)(&crc1),(unsigned char*)(addr+curWriteLength),4);
86 if(crc != crc1)
87 {
88 sprintf(ack,"FAIL CRC ERROR");
89 downloader_serial_write(ack, strlen(ack)+1);
90 return ENOSYS; /* Function not implemented */
91 }
92#else
93
94
95 downloader_serial_read_actuallen((char *)DOWNLOADER_BUFFER_BASE, curWriteLength);
96 memcpy(( char *)addr,(char *)DOWNLOADER_BUFFER_BASE, curWriteLength );
97
98#endif
99 leftWriteLength -= curWriteLength;
100 addr += curWriteLength;
101 }
102
103 sprintf(ack,"OKAY");
104 downloader_serial_write(ack, strlen(ack)+1);
105 return 0;
106
107}
108
109/*******************************************************************************
110 * Function:do_ram_read
111 * Description:
112 * Parameters:
113 * Input:
114 *
115 * Output:
116 *
117 * Returns:
118 *
119 *
120 * Others:
121 ********************************************************************************/
122int do_ram_read(unsigned int offset, unsigned int size)
123{
124 char *rx_buffer = tsp_console_buffer;
125 char *ack = tsp_console_buffer;
126 unsigned int addr = 0;
127 unsigned int leftReadLength = 0;
128 unsigned int curReadLength = 0;
129
130 addr = offset ;
131
132
133 if((size == 0)||(size > CONFIG_SYS_SDRAM_SIZE))
134 {
135 sprintf(ack,"FAIL INVALID LENGTH");
136 downloader_serial_write(ack, strlen(ack)+1);
137 return EINVAL; /* Invalid argument */
138 }
139 leftReadLength = size;
140
141 sprintf(ack,"DATA %08x",MIN(size,DOWNLOADER_BUFFER_SIZE));
142 downloader_serial_write(ack, strlen(ack)+1);
143 while(leftReadLength>0)
144 {
145 curReadLength = MIN(leftReadLength,DOWNLOADER_BUFFER_SIZE);
146 downloader_readline(rx_buffer);
147 if(memcmp(rx_buffer,"OKAY",4) == 0)
148 {
149 memcpy((char *)DOWNLOADER_BUFFER_BASE, (const char *)addr, curReadLength );
150 downloader_serial_write_actuallen((const char *)DOWNLOADER_BUFFER_BASE, curReadLength);
151 }
152 else
153 {
154 sprintf(ack,"FAIL COMMAND ERROR");
155 downloader_serial_write(ack, strlen(ack)+1);
156 return EBADRQC; /* Invalid request code */
157 }
158 leftReadLength -= curReadLength;
159 addr += curReadLength;
160 }
161
162 downloader_readline(rx_buffer);
163 if(memcmp(rx_buffer,"OKAY",4) == 0)
164 {
165 return 0;
166 }
167 else
168 {
169 sprintf(ack,"FAIL COMMAND ERROR");
170 downloader_serial_write(ack, strlen(ack)+1);
171 return EBADRQC; /* Invalid request code */
172 }
173
174}