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27#include <common.h>
28#include <command.h>
29#include <environment.h>
30#include <linux/stddef.h>
31#include <malloc.h>
32
33DECLARE_GLOBAL_DATA_PTR;
34
35#ifdef CONFIG_AMIGAONEG3SE
36 extern void enable_nvram(void);
37 extern void disable_nvram(void);
38#endif
39
40#undef DEBUG_ENV
41#ifdef DEBUG_ENV
42#define DEBUGF(fmt,args...) printf(fmt ,##args)
43#else
44#define DEBUGF(fmt,args...)
45#endif
46
47extern env_t *env_ptr;
48
49extern void env_relocate_spec (void);
50extern uchar env_get_char_spec(int);
51
52static uchar env_get_char_init (int index);
53
54
55
56
57#define XMK_STR(x) #x
58#define MK_STR(x) XMK_STR(x)
59
60uchar default_environment[] = {
61#ifdef CONFIG_BOOTARGS
62 "bootargs=" CONFIG_BOOTARGS "\0"
63#endif
64#ifdef CONFIG_BOOTCOMMAND
65 "bootcmd=" CONFIG_BOOTCOMMAND "\0"
66#endif
67#ifdef CONFIG_RAMBOOTCOMMAND
68 "ramboot=" CONFIG_RAMBOOTCOMMAND "\0"
69#endif
70#ifdef CONFIG_NFSBOOTCOMMAND
71 "nfsboot=" CONFIG_NFSBOOTCOMMAND "\0"
72#endif
73#if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
74 "bootdelay=" MK_STR(CONFIG_BOOTDELAY) "\0"
75#endif
76#if defined(CONFIG_BAUDRATE) && (CONFIG_BAUDRATE >= 0)
77 "baudrate=" MK_STR(CONFIG_BAUDRATE) "\0"
78#endif
79#ifdef CONFIG_LOADS_ECHO
80 "loads_echo=" MK_STR(CONFIG_LOADS_ECHO) "\0"
81#endif
82#ifdef CONFIG_ETHADDR
83 "ethaddr=" MK_STR(CONFIG_ETHADDR) "\0"
84#endif
85#ifdef CONFIG_ETH1ADDR
86 "eth1addr=" MK_STR(CONFIG_ETH1ADDR) "\0"
87#endif
88#ifdef CONFIG_ETH2ADDR
89 "eth2addr=" MK_STR(CONFIG_ETH2ADDR) "\0"
90#endif
91#ifdef CONFIG_ETH3ADDR
92 "eth3addr=" MK_STR(CONFIG_ETH3ADDR) "\0"
93#endif
94#ifdef CONFIG_ETH4ADDR
95 "eth4addr=" MK_STR(CONFIG_ETH4ADDR) "\0"
96#endif
97#ifdef CONFIG_ETH5ADDR
98 "eth5addr=" MK_STR(CONFIG_ETH5ADDR) "\0"
99#endif
100#ifdef CONFIG_IPADDR
101 "ipaddr=" MK_STR(CONFIG_IPADDR) "\0"
102#endif
103#ifdef CONFIG_SERVERIP
104 "serverip=" MK_STR(CONFIG_SERVERIP) "\0"
105#endif
106#ifdef CONFIG_SYS_AUTOLOAD
107 "autoload=" CONFIG_SYS_AUTOLOAD "\0"
108#endif
109#ifdef CONFIG_PREBOOT
110 "preboot=" CONFIG_PREBOOT "\0"
111#endif
112#ifdef CONFIG_ROOTPATH
113 "rootpath=" MK_STR(CONFIG_ROOTPATH) "\0"
114#endif
115#ifdef CONFIG_GATEWAYIP
116 "gatewayip=" MK_STR(CONFIG_GATEWAYIP) "\0"
117#endif
118#ifdef CONFIG_NETMASK
119 "netmask=" MK_STR(CONFIG_NETMASK) "\0"
120#endif
121#ifdef CONFIG_HOSTNAME
122 "hostname=" MK_STR(CONFIG_HOSTNAME) "\0"
123#endif
124#ifdef CONFIG_BOOTFILE
125 "bootfile=" MK_STR(CONFIG_BOOTFILE) "\0"
126#endif
127#ifdef CONFIG_LOADADDR
128 "loadaddr=" MK_STR(CONFIG_LOADADDR) "\0"
129#endif
130#ifdef CONFIG_CLOCKS_IN_MHZ
131 "clocks_in_mhz=1\0"
132#endif
133#if defined(CONFIG_PCI_BOOTDELAY) && (CONFIG_PCI_BOOTDELAY > 0)
134 "pcidelay=" MK_STR(CONFIG_PCI_BOOTDELAY) "\0"
135#endif
136#ifdef CONFIG_EXTRA_ENV_SETTINGS
137 CONFIG_EXTRA_ENV_SETTINGS
138#endif
139 "\0"
140};
141
142void env_crc_update (void)
143{
144 env_ptr->crc = crc32(0, env_ptr->data, ENV_SIZE);
145}
146
147static uchar env_get_char_init (int index)
148{
149 uchar c;
150
151
152 if (gd->env_valid)
153 {
154 c = env_get_char_spec(index);
155 } else {
156 c = default_environment[index];
157 }
158
159 return (c);
160}
161
162#ifdef CONFIG_AMIGAONEG3SE
163uchar env_get_char_memory (int index)
164{
165 uchar retval;
166 enable_nvram();
167 if (gd->env_valid) {
168 retval = ( *((uchar *)(gd->env_addr + index)) );
169 } else {
170 retval = ( default_environment[index] );
171 }
172 disable_nvram();
173 return retval;
174}
175#else
176uchar env_get_char_memory (int index)
177{
178 if (gd->env_valid) {
179 return ( *((uchar *)(gd->env_addr + index)) );
180 } else {
181 return ( default_environment[index] );
182 }
183}
184#endif
185
186uchar env_get_char (int index)
187{
188 uchar c;
189
190
191 if (gd->flags & GD_FLG_RELOC)
192 c = env_get_char_memory(index);
193 else
194 c = env_get_char_init(index);
195
196 return (c);
197}
198
199uchar *env_get_addr (int index)
200{
201 if (gd->env_valid) {
202 return ( ((uchar *)(gd->env_addr + index)) );
203 } else {
204 return (&default_environment[index]);
205 }
206}
207
208void set_default_env(void)
209{
210 if (sizeof(default_environment) > ENV_SIZE) {
211 puts ("*** Error - default environment is too large\n\n");
212 return;
213 }
214
215 memset(env_ptr, 0, sizeof(env_t));
216 memcpy(env_ptr->data, default_environment,
217 sizeof(default_environment));
218#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
219 env_ptr->flags = 0xFF;
220#endif
221 env_crc_update ();
222 gd->env_valid = 1;
223}
224
225void env_relocate (void)
226{
227#ifndef CONFIG_RELOC_FIXUP_WORKS
228 DEBUGF ("%s[%d] offset = 0x%lx\n", __FUNCTION__,__LINE__,
229 gd->reloc_off);
230#endif
231
232#ifdef CONFIG_AMIGAONEG3SE
233 enable_nvram();
234#endif
235
236#ifdef ENV_IS_EMBEDDED
237
238
239
240
241#ifndef CONFIG_RELOC_FIXUP_WORKS
242 env_ptr = (env_t *)((ulong)env_ptr + gd->reloc_off);
243#endif
244 DEBUGF ("%s[%d] embedded ENV at %p\n", __FUNCTION__,__LINE__,env_ptr);
245#else
246
247
248
249 env_ptr = (env_t *)malloc (CONFIG_ENV_SIZE);
250 DEBUGF ("%s[%d] malloced ENV at %p\n", __FUNCTION__,__LINE__,env_ptr);
251#endif
252
253 if (gd->env_valid == 0) {
254#if defined(CONFIG_GTH) || defined(CONFIG_ENV_IS_NOWHERE)
255 puts ("Using default environment\n\n");
256#else
257 puts ("*** Warning - bad CRC, using default environment\n\n");
258 show_boot_progress (-60);
259#endif
260 set_default_env();
261 }
262 else {
263 env_relocate_spec ();
264 }
265 gd->env_addr = (ulong)&(env_ptr->data);
266
267#ifdef CONFIG_AMIGAONEG3SE
268 disable_nvram();
269#endif
270}
271
272#ifdef CONFIG_AUTO_COMPLETE
273int env_complete(char *var, int maxv, char *cmdv[], int bufsz, char *buf)
274{
275 int i, nxt, len, vallen, found;
276 const char *lval, *rval;
277
278 found = 0;
279 cmdv[0] = NULL;
280
281 len = strlen(var);
282
283 for (i=0; env_get_char(i) != '\0'; i=nxt+1) {
284
285 for (nxt=i; env_get_char(nxt) != '\0'; ++nxt)
286 ;
287
288 lval = (char *)env_get_addr(i);
289 rval = strchr(lval, '=');
290 if (rval != NULL) {
291 vallen = rval - lval;
292 rval++;
293 } else
294 vallen = strlen(lval);
295
296 if (len > 0 && (vallen < len || memcmp(lval, var, len) != 0))
297 continue;
298
299 if (found >= maxv - 2 || bufsz < vallen + 1) {
300 cmdv[found++] = "...";
301 break;
302 }
303 cmdv[found++] = buf;
304 memcpy(buf, lval, vallen); buf += vallen; bufsz -= vallen;
305 *buf++ = '\0'; bufsz--;
306 }
307
308 cmdv[found] = NULL;
309 return found;
310}
311#endif
312
