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1 | /* | |
2 | * (C) Copyright 2014,2016 Leo C. <erbl259-lmu@yahoo.de> | |
3 | * | |
4 | * SPDX-License-Identifier: GPL-2.0 | |
5 | */ | |
6 | ||
7 | #include "debug.h" | |
8 | #include "common.h" | |
9 | #include <stdlib.h> /* __malloc_margin */ | |
10 | #include <string.h> | |
11 | #include <ctype.h> | |
12 | #include <avr/eeprom.h> | |
13 | ||
14 | #include "command.h" | |
15 | #include "cli_readline.h" | |
16 | #include "eval_arg.h" | |
17 | #include "print-utils.h" | |
18 | ||
19 | /* | |
20 | * Debugging | |
21 | */ | |
22 | ||
23 | #ifdef DEBUG | |
24 | ||
25 | /* | |
26 | * Memory Display | |
27 | * md addr {len} | |
28 | */ | |
29 | command_ret_t do_dump_mem(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc, char * const argv[]) | |
30 | { | |
31 | ERRNUM (*readwhat)(uint8_t *buf, uint32_t addr, uint8_t count); | |
32 | ||
33 | if (argc < 2) | |
34 | return CMD_RET_USAGE; | |
35 | ||
36 | uint32_t addr; | |
37 | uint32_t length = 128; | |
38 | ||
39 | switch (argv[0][3]) { | |
40 | case 'r': | |
41 | readwhat = ram_read_buf; | |
42 | break; | |
43 | case 'e': | |
44 | readwhat = eeprom_read_buf; | |
45 | break; | |
46 | case 'f': | |
47 | readwhat = flash_read_buf; | |
48 | break; | |
49 | default: | |
50 | return CMD_RET_USAGE; | |
51 | } | |
52 | ||
53 | /* Address is specified since argc > 1 */ | |
54 | addr = eval_arg(argv[1], NULL); | |
55 | ||
56 | /* If another parameter, it is the length to display. */ | |
57 | if (argc > 2) | |
58 | length = (uint16_t) eval_arg(argv[2], NULL); | |
59 | ||
60 | /* Print the lines. */ | |
61 | dump_mem(addr, addr, length, readwhat, NULL); | |
62 | ||
63 | return CMD_RET_SUCCESS; | |
64 | } | |
65 | ||
66 | command_ret_t do_eep_cp(cmd_tbl_t *cmdtp, uint_fast8_t flag, int argc, char * const argv[]) | |
67 | { | |
68 | uint16_t src, dest, count; | |
69 | int_fast8_t step; | |
70 | ||
71 | (void) cmdtp; | |
72 | (void) flag; | |
73 | ||
74 | if (argc != 4) | |
75 | return CMD_RET_USAGE; | |
76 | ||
77 | src = (size_t) eval_arg(argv[1], NULL); | |
78 | dest = (size_t) eval_arg(argv[2], NULL); | |
79 | count = (size_t) eval_arg(argv[3], NULL); | |
80 | ||
81 | if (src > E2END) { | |
82 | debug("src > EEPROM size: 0x%04x\n", src); | |
83 | return CMD_RET_FAILURE; | |
84 | } | |
85 | if (dest > E2END) { | |
86 | debug("dest > EEPROM size: 0x%04x\n", dest); | |
87 | return CMD_RET_FAILURE; | |
88 | } | |
89 | if (count > E2END+1) { | |
90 | debug("count > EEPROM size: 0x%04x\n", count); | |
91 | return CMD_RET_FAILURE; | |
92 | } | |
93 | if (count == 0) { | |
94 | debug("Zero length?\n"); | |
95 | return CMD_RET_FAILURE; | |
96 | } | |
97 | ||
98 | if (dest > src) { | |
99 | src += count - 1; | |
100 | dest += count - 1; | |
101 | step = -1; | |
102 | } else | |
103 | step = 1; | |
104 | ||
105 | while (count-- > 0) { | |
106 | uint8_t data; | |
107 | data = eeprom_read_byte((uint8_t *) src); | |
108 | eeprom_write_byte((uint8_t *) dest, data); | |
109 | src += step; | |
110 | dest += step; | |
111 | ||
112 | } | |
113 | return CMD_RET_SUCCESS; | |
114 | } | |
115 | ||
116 | ||
117 | /* Modify memory. | |
118 | * | |
119 | * Syntax: | |
120 | * !mm {addr} | |
121 | * !nm {addr} | |
122 | */ | |
123 | ||
124 | static uint8_t *mm_last_addr; | |
125 | ||
126 | static command_ret_t | |
127 | mod_mem_avr(cmd_tbl_t *cmdtp, int incrflag, uint_fast8_t flag, int argc, char * const argv[]) | |
128 | { | |
129 | uint8_t *addr; | |
130 | int nbytes; | |
131 | ||
132 | (void) cmdtp; | |
133 | ||
134 | if (argc != 2) | |
135 | return CMD_RET_USAGE; | |
136 | ||
137 | /* We use the last specified parameters, unless new ones are | |
138 | * entered. | |
139 | */ | |
140 | addr = mm_last_addr; | |
141 | ||
142 | if ((flag & CMD_FLAG_REPEAT) == 0) { | |
143 | /* New command specified. | |
144 | */ | |
145 | ||
146 | /* Address is specified since argc > 1 | |
147 | */ | |
148 | addr = (uint8_t *) (size_t) eval_arg(argv[1], NULL); | |
149 | } | |
150 | ||
151 | /* Print the address, followed by value. Then accept input for | |
152 | * the next value. A non-converted value exits. | |
153 | */ | |
154 | do { | |
155 | uint8_t data = *addr; | |
156 | printf_P(PSTR("%04x: %02x"), addr, data); | |
157 | ||
158 | nbytes = cli_readline(PSTR(" ? "), 0); | |
159 | if (nbytes == 0 || (nbytes == 1 && console_buffer[0] == '-')) { | |
160 | /* <CR> pressed as only input, don't modify current | |
161 | * location and move to next. "-" pressed will go back. | |
162 | */ | |
163 | if (incrflag) | |
164 | addr += nbytes ? -1 : 1; | |
165 | nbytes = 1; | |
166 | ||
167 | } else { | |
168 | char *endp; | |
169 | data = eval_arg(console_buffer, &endp); | |
170 | nbytes = endp - console_buffer; | |
171 | if (nbytes) { | |
172 | *addr = data; | |
173 | if (incrflag) | |
174 | addr++; | |
175 | } | |
176 | } | |
177 | } while (nbytes > 0); | |
178 | ||
179 | mm_last_addr = addr; | |
180 | return CMD_RET_SUCCESS; | |
181 | } | |
182 | ||
183 | ||
184 | command_ret_t do_mem_mm_avr(cmd_tbl_t *cmdtp, uint_fast8_t flag, int argc, char * const argv[]) | |
185 | { | |
186 | return mod_mem_avr (cmdtp, 1, flag, argc, argv); | |
187 | } | |
188 | command_ret_t do_mem_nm_avr(cmd_tbl_t *cmdtp, uint_fast8_t flag, int argc, char * const argv[]) | |
189 | { | |
190 | return mod_mem_avr (cmdtp, 0, flag, argc, argv); | |
191 | } | |
192 | ||
193 | /*------------------------------------------------------------------------------*/ | |
194 | ||
195 | struct __freelist { | |
196 | size_t sz; | |
197 | struct __freelist *nx; | |
198 | }; | |
199 | ||
200 | extern char *__brkval; /* first location not yet allocated */ | |
201 | extern struct __freelist *__flp; /* freelist pointer (head of freelist) */ | |
202 | ||
203 | #define STACK_POINTER() ((char *)AVR_STACK_POINTER_REG) | |
204 | ||
205 | size_t get_freemem(void) | |
206 | { | |
207 | return (size_t) STACK_POINTER() - __malloc_margin - (size_t) __brkval; | |
208 | } | |
209 | ||
210 | void | |
211 | printfreelist(const char * title) | |
212 | { | |
213 | struct __freelist *fp1; | |
214 | int i; | |
215 | unsigned int freesum = 0; | |
216 | ||
217 | if (!__flp) { | |
218 | printf_P(PSTR("%s no free list\n"), title ? title : ""); | |
219 | } else { | |
220 | printf_P(PSTR("Free list: %s\n"), title ? title : ""); | |
221 | for (i = 0, fp1 = __flp; fp1; i++, fp1 = fp1->nx) { | |
222 | printf_P(PSTR(" entry %d @ %04x: size %4u, next "), | |
223 | i, (size_t)fp1, fp1->sz); | |
224 | if (fp1->nx) | |
225 | printf_P(PSTR("%04x\n"), (size_t)fp1->nx); | |
226 | else | |
227 | printf_P(PSTR("NULL\n")); | |
228 | freesum += fp1->sz; | |
229 | } | |
230 | } | |
231 | ||
232 | freesum += get_freemem(); | |
233 | ||
234 | printf_P(PSTR("SP: %04x, __brkval: %04x, Total free: %04u\n"), | |
235 | (size_t) STACK_POINTER(), (size_t) __brkval, freesum); | |
236 | } | |
237 | ||
238 | command_ret_t do_pr_free_avr(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc UNUSED, char * const argv[] UNUSED) | |
239 | { | |
240 | printfreelist(NULL); | |
241 | ||
242 | return CMD_RET_SUCCESS; | |
243 | } | |
244 | ||
245 | void dump_heap(void) | |
246 | { | |
247 | //extern unsigned int __brkval; | |
248 | ||
249 | dump_ram((uint8_t *)__malloc_heap_start, (size_t) __malloc_heap_start, __brkval - __malloc_heap_start, | |
250 | "=== Heap:"); | |
251 | } | |
252 | ||
253 | command_ret_t do_pr_heap_avr(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc UNUSED, char * const argv[] UNUSED) | |
254 | { | |
255 | dump_heap(); | |
256 | ||
257 | return CMD_RET_SUCCESS; | |
258 | } | |
259 | ||
260 | #endif /* DEBUG */ |