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Commit | Line | Data |
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8f23e84c L |
1 | #include "common.h" |
2 | #include <stdlib.h> | |
3 | #include <string.h> | |
4 | #include <ctype.h> | |
8f23e84c L |
5 | |
6 | #include "command.h" | |
7 | #include "print-utils.h" | |
8 | #include "getopt-min.h" | |
9 | #include "env.h" | |
05994bd9 | 10 | #include "gpio.h" |
8f23e84c L |
11 | //#include "debug.h" |
12 | ||
13 | ||
14 | ||
05994bd9 L |
15 | static const int namestr = GPIO_MAX; |
16 | static char *pin_names[GPIO_MAX+1]; | |
8f23e84c L |
17 | static uint_least8_t pin_names_width; |
18 | ||
19 | static void pinnames_get(void) | |
20 | { | |
21 | static const FLASH char delim1[] = {":= "}; | |
22 | static const FLASH char delim2[] = {", "}; | |
23 | char *lp; | |
24 | char *ptr; | |
25 | uint_fast8_t i; | |
26 | ||
27 | if (pin_names[namestr] != NULL) | |
28 | free(pin_names[namestr]); | |
29 | memset(pin_names, 0, sizeof(pin_names)); | |
30 | pin_names_width = 0; | |
31 | ||
4565be9a L |
32 | /* TODO: enters endless loop on wron parameters */ |
33 | ||
8f23e84c L |
34 | if ((lp = getenv(PSTR(ENV_PINALIAS))) != NULL) { |
35 | pin_names[namestr] = strdup(lp); | |
36 | ptr = strtok_P(pin_names[namestr], delim1); | |
37 | while (ptr != NULL) { | |
05994bd9 | 38 | if (((i = strtoul(ptr, &lp, 10)) < GPIO_MAX) && |
8f23e84c L |
39 | lp != ptr && |
40 | (ptr = strtok_P(NULL, delim2)) != NULL ) { | |
41 | pin_names[i] = ptr; | |
42 | ptr = strtok_P(NULL, delim1); | |
43 | } | |
44 | } | |
45 | ||
05994bd9 | 46 | for (i = 0; i < GPIO_MAX; i++) |
8f23e84c L |
47 | if (strlen(pin_names[i]) > pin_names_width) |
48 | pin_names_width = strlen(pin_names[i]); | |
49 | } | |
50 | } | |
51 | ||
52 | ||
53 | static size_t xstrlen(char *s) | |
54 | { | |
55 | if (s == NULL) | |
56 | return 0; | |
57 | else | |
58 | return strlen(s); | |
59 | } | |
60 | ||
61 | static const FLASH char * const FLASH pinconf_str[] = { | |
62 | FSTR("?"), | |
63 | FSTR("Input"), | |
64 | FSTR("Pullup"), | |
65 | FSTR("Output"), | |
66 | FSTR("Clock"), | |
67 | }; | |
68 | ||
69 | static const FLASH char * const FLASH pinlevel_str[] = { | |
70 | FSTR("Low"), | |
71 | FSTR("High"), | |
72 | FSTR(""), | |
73 | }; | |
74 | ||
75 | static int print_pin(int pin, int multi) | |
76 | { | |
77 | int pinconf; | |
78 | const FLASH char *levelp; | |
79 | long div; | |
80 | ||
05994bd9 | 81 | pinconf = gpio_config_get(pin); |
8f23e84c | 82 | if (pinconf == OUTPUT_TIMER) { |
05994bd9 | 83 | div = gpio_clockdiv_get(pin); |
8f23e84c L |
84 | levelp = pinlevel_str[2]; |
85 | } else | |
05994bd9 | 86 | levelp = pinlevel_str[gpio_read(pin)]; |
8f23e84c L |
87 | |
88 | if (multi) { | |
89 | printf_P(PSTR("%3d "), pin); | |
90 | if (pin_names_width) { | |
91 | printf_P(PSTR("%s "), pin_names[pin]); | |
92 | print_blanks(pin_names_width - xstrlen(pin_names[pin])); | |
93 | } | |
94 | my_puts_P(pinconf_str[pinconf]); | |
95 | print_blanks(7 - strlen_P(pinconf_str[pinconf])); | |
96 | my_puts_P(levelp); | |
97 | print_blanks(5 - strlen_P(levelp)); | |
98 | if (pinconf == OUTPUT_TIMER) | |
99 | printf_P(PSTR("%8ld %8ld"), | |
100 | div, F_CPU/div); | |
101 | } else { | |
102 | printf_P(PSTR("%d: \"%s\", "), pin, pin_names[pin] ? pin_names[pin] : 0); | |
103 | my_puts_P(pinconf_str[pinconf]); | |
104 | printf_P(PSTR(", ")); | |
105 | my_puts_P(levelp); | |
106 | ||
107 | if (pinconf == OUTPUT_TIMER) | |
108 | printf_P(PSTR("divide by %ld (%ldHz)"), | |
109 | div, F_CPU/div); | |
110 | } | |
111 | printf_P(PSTR("\n")); | |
112 | ||
113 | return 0; | |
114 | } | |
115 | ||
116 | static int_fast8_t pinarg_insert(int pin, uint_fast8_t count, uint_fast8_t pinarg[]) | |
117 | { | |
118 | uint_fast8_t pos; | |
119 | ||
05994bd9 | 120 | if (pin < 0 || pin >= GPIO_MAX) |
8f23e84c L |
121 | return -1; |
122 | ||
123 | for (pos = 0; pos < count; pos++) { | |
124 | if (pin == pinarg[pos]) | |
125 | return 0; | |
126 | if (pin < pinarg[pos]) | |
127 | break; | |
128 | } | |
129 | for (uint_fast8_t i = count-1; i == pos ; i--) | |
130 | pinarg[i+1] = pinarg[i]; | |
131 | pinarg[pos] = pin; | |
132 | ||
133 | return 1; | |
134 | } | |
135 | ||
136 | static uint_fast8_t pinarg_get(char * arg, uint_fast8_t pinarg[]) | |
137 | { | |
138 | char *endp; | |
139 | uint_fast8_t pin1; | |
140 | int_fast8_t rc; | |
141 | uint_fast8_t count = 0; | |
142 | ||
143 | while (1) { | |
144 | pin1 = strtoul(arg, &endp, 10); | |
145 | if (endp != arg && *endp == '-') { | |
146 | arg = endp+1; | |
147 | uint_fast8_t pin2 = (int) strtoul(arg, &endp, 10); | |
148 | if (pin1 < pin2) | |
149 | for (; pin1 < pin2; pin1++) | |
150 | if ((rc = pinarg_insert(pin1, count, pinarg)) >= 0) | |
151 | count += rc; | |
152 | else | |
153 | return 0; | |
154 | else | |
155 | return 0; | |
156 | } | |
157 | if (endp != arg) { | |
158 | if ((*endp == ',' || *endp == '\0') && | |
159 | (rc = pinarg_insert(pin1, count, pinarg)) >= 0) { | |
160 | count += rc; | |
161 | if (*endp == '\0') | |
162 | return count; | |
163 | } else | |
164 | return 0; | |
165 | } else | |
166 | return 0; | |
167 | ||
168 | arg = endp+1; | |
169 | } | |
170 | } | |
171 | ||
172 | ||
05994bd9 | 173 | command_ret_t do_gpio(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) |
8f23e84c L |
174 | { |
175 | char printheader = 1; | |
05994bd9 | 176 | uint_fast8_t pinarg[GPIO_MAX]; |
8f23e84c L |
177 | uint_fast8_t pinargc; |
178 | ||
179 | (void) cmdtp; (void) flag; | |
180 | ||
181 | /* reset getopt() */ | |
182 | optind = 1; | |
183 | ||
184 | int opt; | |
185 | while ((opt = getopt(argc, argv, PSTR("s"))) != -1) { | |
186 | switch (opt) { | |
187 | case 's': | |
188 | printheader = 0; | |
189 | break; | |
190 | default: /* '?' */ | |
191 | return CMD_RET_USAGE; | |
192 | } | |
193 | } | |
194 | ||
195 | /* remaining arguments */ | |
196 | argc -= optind; | |
197 | ||
198 | pinnames_get(); | |
199 | ||
200 | if (argc == 0) { | |
201 | /* print cofig of all pins */ | |
05994bd9 | 202 | for (pinargc = 0; pinargc < GPIO_MAX; pinargc++) |
8f23e84c L |
203 | pinarg[pinargc] = pinargc; |
204 | } else { | |
205 | /* get first arg */ | |
206 | pinargc = pinarg_get(argv[optind++], pinarg); | |
207 | if (pinargc == 0) | |
208 | return CMD_RET_USAGE; | |
209 | else | |
210 | argc--; | |
211 | } | |
212 | ||
213 | if (argc == 0) { | |
214 | /* no more args, print config */ | |
215 | if (pinargc == 1) | |
216 | print_pin(pinarg[0], 0); | |
217 | else { | |
218 | if (printheader) { | |
219 | if (pin_names_width > 0) { | |
220 | if ( strlen("Name") > pin_names_width) | |
221 | pin_names_width = strlen("Name"); | |
222 | char s[pin_names_width+1]; | |
223 | memset(s, ' ', pin_names_width); | |
224 | s[pin_names_width] = '\0'; | |
225 | strncpy_P(s, PSTR("Name"), 4); | |
226 | printf_P(PSTR("Pin %s Config Level Divider Frequency/Hz\n"),s); | |
227 | memset(s, '-', pin_names_width); | |
228 | printf_P(PSTR("----%s-----------------------------------\n"), s); | |
229 | } else | |
230 | printf_P(PSTR("Pin Config Level Divider Frequency/Hz\n" | |
231 | "--------------------------------------\n")); | |
232 | } | |
233 | for (uint_fast8_t i = 0; i < pinargc; i++) | |
234 | print_pin(pinarg[i], 1); | |
235 | } | |
236 | return CMD_RET_SUCCESS; | |
237 | } | |
238 | ||
239 | /* arguments must be in pairs: pins conf */ | |
240 | if (argc % 2 != 1) | |
241 | return CMD_RET_USAGE; | |
242 | ||
243 | while (argc > 0) { | |
244 | char *endp; | |
05994bd9 | 245 | gpiomode_t mode = NONE; |
8f23e84c L |
246 | int level = 0; |
247 | unsigned long value = 0; | |
248 | uint8_t hz_flag = 0; | |
249 | ||
250 | switch (toupper(argv[optind][0])) { | |
251 | case 'H': | |
252 | level = 1; | |
253 | case 'L': | |
254 | mode = OUTPUT; | |
255 | break; | |
256 | case 'P': | |
257 | mode = INPUT_PULLUP; | |
258 | break; | |
259 | case 'I': | |
260 | case 'T': | |
261 | mode = INPUT; | |
262 | break; | |
263 | ||
264 | default: | |
265 | value = strtoul(argv[optind], &endp, 10); | |
266 | switch (*endp) { | |
267 | case 'M': | |
268 | value *= 1000; | |
269 | case 'K': | |
270 | value *= 1000; | |
271 | endp++; | |
272 | } | |
273 | ||
274 | if (*endp && strcmp_P(endp, PSTR("Hz")) == 0) { | |
275 | hz_flag = 1; | |
276 | endp += 2; | |
277 | } | |
278 | ||
279 | if (*endp != '\0') { | |
280 | printf_P(PSTR("invalid parameter: '%s'\n"), argv[optind]); | |
281 | return CMD_RET_USAGE; | |
282 | } | |
283 | ||
284 | if (value == 0) { | |
285 | printf_P(PSTR("invalid value: %lu \n")); | |
286 | return CMD_RET_USAGE; | |
287 | } | |
288 | ||
289 | if (hz_flag) { | |
290 | if (value > F_CPU / 2) { | |
291 | printf_P(PSTR("Max frequency is: %luHz\n"), F_CPU/2); | |
292 | return CMD_RET_USAGE; | |
293 | } | |
294 | value = F_CPU/value; | |
295 | } | |
296 | mode = OUTPUT_TIMER; | |
297 | ||
298 | } | |
299 | ||
300 | if (mode == NONE) | |
301 | return CMD_RET_USAGE; | |
302 | ||
303 | for (uint_fast8_t i = 0; i < pinargc; i++) { | |
304 | switch (mode) { | |
305 | case OUTPUT: | |
05994bd9 | 306 | gpio_write(pinarg[i], level); |
8f23e84c L |
307 | /* fall thru */ |
308 | case INPUT: | |
309 | case INPUT_PULLUP: | |
05994bd9 | 310 | gpio_config(pinarg[i], mode); |
8f23e84c L |
311 | break; |
312 | case OUTPUT_TIMER: | |
05994bd9 | 313 | if (gpio_clockdiv_set(pinarg[i], value) < 0) { |
8f23e84c L |
314 | printf_P(PSTR("Setting pin %d to %lu failed.\n"), |
315 | pinarg[i], value); | |
316 | } | |
317 | break; | |
318 | default: | |
319 | break; | |
320 | } | |
321 | } | |
322 | ||
323 | optind++; | |
324 | pinargc = pinarg_get(argv[optind++], pinarg); | |
325 | argc -= 2; | |
326 | } | |
327 | ||
328 | return CMD_RET_SUCCESS; | |
329 | } |