2 * Copyright © 2009 Keith Packard <keithp@keithp.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
20 __xdata uint16_t ao_cmd_lex_i;
21 __xdata uint8_t ao_cmd_lex_c;
22 __xdata enum ao_cmd_status ao_cmd_status;
23 static __xdata uint8_t lex_echo;
27 static __xdata uint8_t cmd_line[CMD_LEN];
28 static __xdata uint8_t cmd_len;
29 static __xdata uint8_t cmd_i;
49 /* backspace/delete */
50 if (c == '\010' || c == '\177') {
53 put_string("\010 \010");
61 while (cmd_len != 0) {
63 put_string("\010 \010");
79 if (cmd_len >= CMD_LEN - 2) {
84 cmd_line[cmd_len++] = c;
88 cmd_line[cmd_len++] = '\n';
89 cmd_line[cmd_len++] = '\0';
98 ao_cmd_lex_c = cmd_line[cmd_i++];
107 putchar(v + ('a' - 10));
111 ao_cmd_put16(uint16_t v)
114 for (i = 3; i >= 0; i--)
115 putnibble((v >> (i << 2)) & 0xf);
119 ao_cmd_put8(uint8_t v)
121 putnibble((v >> 4) & 0xf);
128 while (ao_cmd_lex_c == ' ' || ao_cmd_lex_c == '\t')
135 __xdata uint8_t r = ao_cmd_lex_error;
140 if ('0' <= ao_cmd_lex_c && ao_cmd_lex_c <= '9')
141 ao_cmd_lex_i = (ao_cmd_lex_i << 4) | (ao_cmd_lex_c - '0');
142 else if ('a' <= ao_cmd_lex_c && ao_cmd_lex_c <= 'f')
143 ao_cmd_lex_i = (ao_cmd_lex_i << 4) | (ao_cmd_lex_c - 'a' + 10);
144 else if ('A' <= ao_cmd_lex_c && ao_cmd_lex_c <= 'F')
145 ao_cmd_lex_i = (ao_cmd_lex_i << 4) | (ao_cmd_lex_c - 'A' + 10);
151 if (r != ao_cmd_success)
159 __xdata uint8_t r = ao_cmd_lex_error;
164 if ('0' <= ao_cmd_lex_c && ao_cmd_lex_c <= '9')
165 ao_cmd_lex_i = (ao_cmd_lex_i * 10 ) | (ao_cmd_lex_c - '0');
171 if (r != ao_cmd_success)
179 while (ao_cmd_lex_c != '\n')
187 __xdata uint8_t * __xdata start, * __xdata end;
190 start = (uint8_t __xdata *) ao_cmd_lex_i;
192 end = (uint8_t __xdata *) ao_cmd_lex_i;
193 if (ao_cmd_status != ao_cmd_success)
196 while (start <= end) {
200 ao_cmd_put16((uint16_t) start);
214 lex_echo = ao_cmd_lex_i != 0;
217 static const uint8_t help_txt[] = "All numbers are in hex";
221 static __code struct ao_cmds *__xdata (ao_cmds[NUM_CMDS]);
222 static __xdata uint8_t ao_ncmds;
227 __xdata uint8_t cmds;
229 __code struct ao_cmds * __xdata cs;
231 for (cmds = 0; cmds < ao_ncmds; cmds++) {
233 for (cmd = 0; cs[cmd].cmd != '\0'; cmd++)
241 switch(ao_cmd_status) {
242 case ao_cmd_lex_error:
243 case ao_cmd_syntax_error:
244 puts("Syntax error");
251 ao_cmd_register(__code struct ao_cmds *cmds)
253 if (ao_ncmds >= NUM_CMDS)
254 ao_panic(AO_PANIC_CMD);
255 ao_cmds[ao_ncmds++] = cmds;
259 ao_cmd(void *parameters)
262 __xdata uint8_t cmd, cmds;
263 __code struct ao_cmds * __xdata cs;
264 void (*__xdata func)(void);
274 if (c == '\r' || c == '\n')
276 func = (void (*)(void)) NULL;
277 for (cmds = 0; cmds < ao_ncmds; cmds++) {
279 for (cmd = 0; cs[cmd].cmd != '\0'; cmd++)
280 if (cs[cmd].cmd == c) {
290 ao_cmd_status = ao_cmd_syntax_error;
295 __xdata struct ao_task ao_cmd_task;
297 __code struct ao_cmds ao_base_cmds[] = {
298 { '?', help, "? Print this message" },
299 { 'T', ao_task_info, "T Show task states" },
300 { 'E', echo, "E <0 off, 1 on> Set command echo mode" },
301 { 'd', dump, "d <start> <end> Dump memory" },
308 ao_cmd_register(&ao_base_cmds[0]);
309 ao_add_task(&ao_cmd_task, ao_cmd, "cmd");