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6262b72b PM |
1 | /* |
2 | * Copyright (C) 2014-2015 Samsung Electronics | |
3 | * Przemyslaw Marczak <p.marczak@samsung.com> | |
4 | * | |
5 | * SPDX-License-Identifier: GPL-2.0+ | |
6 | */ | |
7 | #include <common.h> | |
8 | #include <errno.h> | |
9 | #include <dm.h> | |
10 | #include <dm/uclass-internal.h> | |
11 | #include <power/regulator.h> | |
12 | ||
6262b72b | 13 | #define LIMIT_DEVNAME 20 |
e09b2a02 PM |
14 | #define LIMIT_OFNAME 32 |
15 | #define LIMIT_INFO 18 | |
6262b72b PM |
16 | |
17 | static struct udevice *currdev; | |
18 | ||
e09b2a02 | 19 | static int failure(int ret) |
6262b72b | 20 | { |
e09b2a02 | 21 | printf("Error: %d (%s)\n", ret, errno_str(ret)); |
6262b72b | 22 | |
e09b2a02 | 23 | return CMD_RET_FAILURE; |
6262b72b PM |
24 | } |
25 | ||
26 | static int do_dev(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
27 | { | |
28 | struct dm_regulator_uclass_platdata *uc_pdata; | |
e09b2a02 PM |
29 | const char *name; |
30 | int ret = -ENXIO; | |
6262b72b PM |
31 | |
32 | switch (argc) { | |
33 | case 2: | |
e09b2a02 PM |
34 | name = argv[1]; |
35 | ret = regulator_get_by_platname(name, &currdev); | |
36 | if (ret) { | |
37 | printf("Can't get the regulator: %s!\n", name); | |
38 | return failure(ret); | |
39 | } | |
6262b72b | 40 | case 1: |
e09b2a02 PM |
41 | if (!currdev) { |
42 | printf("Regulator device is not set!\n\n"); | |
43 | return CMD_RET_USAGE; | |
44 | } | |
45 | ||
6262b72b | 46 | uc_pdata = dev_get_uclass_platdata(currdev); |
e09b2a02 PM |
47 | if (!uc_pdata) { |
48 | printf("%s: no regulator platform data!\n", currdev->name); | |
49 | return failure(ret); | |
50 | } | |
6262b72b | 51 | |
e09b2a02 | 52 | printf("dev: %s @ %s\n", uc_pdata->name, currdev->name); |
6262b72b PM |
53 | } |
54 | ||
55 | return CMD_RET_SUCCESS; | |
6262b72b PM |
56 | } |
57 | ||
e09b2a02 PM |
58 | static int curr_dev_and_platdata(struct udevice **devp, |
59 | struct dm_regulator_uclass_platdata **uc_pdata, | |
60 | bool allow_type_fixed) | |
6262b72b PM |
61 | { |
62 | *devp = NULL; | |
63 | *uc_pdata = NULL; | |
64 | ||
e09b2a02 PM |
65 | if (!currdev) { |
66 | printf("First, set the regulator device!\n"); | |
67 | return CMD_RET_FAILURE; | |
68 | } | |
6262b72b PM |
69 | |
70 | *devp = currdev; | |
71 | ||
72 | *uc_pdata = dev_get_uclass_platdata(*devp); | |
e09b2a02 PM |
73 | if (!*uc_pdata) { |
74 | error("Regulator: %s - missing platform data!", currdev->name); | |
75 | return CMD_RET_FAILURE; | |
76 | } | |
6262b72b PM |
77 | |
78 | if (!allow_type_fixed && (*uc_pdata)->type == REGULATOR_TYPE_FIXED) { | |
79 | printf("Operation not allowed for fixed regulator!\n"); | |
80 | return CMD_RET_FAILURE; | |
81 | } | |
82 | ||
83 | return CMD_RET_SUCCESS; | |
84 | } | |
85 | ||
86 | static int do_list(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
87 | { | |
e09b2a02 PM |
88 | struct dm_regulator_uclass_platdata *uc_pdata; |
89 | struct udevice *dev; | |
6262b72b PM |
90 | int ret; |
91 | ||
e09b2a02 PM |
92 | printf("| %-*.*s| %-*.*s| %s\n", |
93 | LIMIT_DEVNAME, LIMIT_DEVNAME, "Device", | |
94 | LIMIT_OFNAME, LIMIT_OFNAME, "regulator-name", | |
95 | "Parent"); | |
6262b72b | 96 | |
e09b2a02 PM |
97 | for (ret = uclass_find_first_device(UCLASS_REGULATOR, &dev); dev; |
98 | ret = uclass_find_next_device(&dev)) { | |
99 | if (ret) | |
100 | continue; | |
6262b72b | 101 | |
e09b2a02 PM |
102 | uc_pdata = dev_get_uclass_platdata(dev); |
103 | printf("| %-*.*s| %-*.*s| %s\n", | |
104 | LIMIT_DEVNAME, LIMIT_DEVNAME, dev->name, | |
105 | LIMIT_OFNAME, LIMIT_OFNAME, uc_pdata->name, | |
106 | dev->parent->name); | |
107 | } | |
108 | ||
109 | return ret; | |
6262b72b PM |
110 | } |
111 | ||
112 | static int constraint(const char *name, int val, const char *val_name) | |
113 | { | |
114 | printf("%-*s", LIMIT_INFO, name); | |
115 | if (val < 0) { | |
116 | printf(" %s (err: %d)\n", errno_str(val), val); | |
117 | return val; | |
118 | } | |
119 | ||
120 | if (val_name) | |
121 | printf(" %d (%s)\n", val, val_name); | |
122 | else | |
123 | printf(" %d\n", val); | |
124 | ||
125 | return 0; | |
126 | } | |
127 | ||
128 | static const char *get_mode_name(struct dm_regulator_mode *mode, | |
129 | int mode_count, | |
130 | int mode_id) | |
131 | { | |
132 | while (mode_count--) { | |
133 | if (mode->id == mode_id) | |
134 | return mode->name; | |
135 | mode++; | |
136 | } | |
137 | ||
138 | return NULL; | |
139 | } | |
140 | ||
141 | static int do_info(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
142 | { | |
143 | struct udevice *dev; | |
144 | struct dm_regulator_uclass_platdata *uc_pdata; | |
145 | struct dm_regulator_mode *modes; | |
146 | const char *parent_uc; | |
147 | int mode_count; | |
148 | int ret; | |
149 | int i; | |
150 | ||
e09b2a02 | 151 | ret = curr_dev_and_platdata(&dev, &uc_pdata, true); |
6262b72b PM |
152 | if (ret) |
153 | return ret; | |
154 | ||
155 | parent_uc = dev_get_uclass_name(dev->parent); | |
156 | ||
e09b2a02 PM |
157 | printf("%s\n%-*s %s\n%-*s %s\n%-*s %s\n%-*s %s\n%-*s\n", |
158 | "Regulator info:", | |
159 | LIMIT_INFO, "* regulator-name:", uc_pdata->name, | |
160 | LIMIT_INFO, "* device name:", dev->name, | |
161 | LIMIT_INFO, "* parent name:", dev->parent->name, | |
162 | LIMIT_INFO, "* parent uclass:", parent_uc, | |
6262b72b PM |
163 | LIMIT_INFO, "* constraints:"); |
164 | ||
165 | constraint(" - min uV:", uc_pdata->min_uV, NULL); | |
166 | constraint(" - max uV:", uc_pdata->max_uV, NULL); | |
167 | constraint(" - min uA:", uc_pdata->min_uA, NULL); | |
168 | constraint(" - max uA:", uc_pdata->max_uA, NULL); | |
169 | constraint(" - always on:", uc_pdata->always_on, | |
170 | uc_pdata->always_on ? "true" : "false"); | |
171 | constraint(" - boot on:", uc_pdata->boot_on, | |
172 | uc_pdata->boot_on ? "true" : "false"); | |
173 | ||
174 | mode_count = regulator_mode(dev, &modes); | |
175 | constraint("* op modes:", mode_count, NULL); | |
176 | ||
177 | for (i = 0; i < mode_count; i++, modes++) | |
178 | constraint(" - mode id:", modes->id, modes->name); | |
179 | ||
180 | return CMD_RET_SUCCESS; | |
181 | } | |
182 | ||
931b24c5 SG |
183 | static void do_status_detail(struct udevice *dev, |
184 | struct dm_regulator_uclass_platdata *uc_pdata) | |
6262b72b | 185 | { |
931b24c5 SG |
186 | int current, value, mode; |
187 | const char *mode_name; | |
6262b72b PM |
188 | bool enabled; |
189 | ||
e09b2a02 PM |
190 | printf("Regulator %s status:\n", uc_pdata->name); |
191 | ||
6262b72b PM |
192 | enabled = regulator_get_enable(dev); |
193 | constraint(" * enable:", enabled, enabled ? "true" : "false"); | |
194 | ||
195 | value = regulator_get_value(dev); | |
196 | constraint(" * value uV:", value, NULL); | |
197 | ||
198 | current = regulator_get_current(dev); | |
199 | constraint(" * current uA:", current, NULL); | |
200 | ||
201 | mode = regulator_get_mode(dev); | |
202 | mode_name = get_mode_name(uc_pdata->mode, uc_pdata->mode_count, mode); | |
203 | constraint(" * mode id:", mode, mode_name); | |
931b24c5 SG |
204 | } |
205 | ||
206 | static void do_status_line(struct udevice *dev) | |
207 | { | |
208 | struct dm_regulator_uclass_platdata *pdata; | |
209 | int current, value, mode; | |
210 | const char *mode_name; | |
211 | bool enabled; | |
212 | ||
213 | pdata = dev_get_uclass_platdata(dev); | |
214 | enabled = regulator_get_enable(dev); | |
215 | value = regulator_get_value(dev); | |
216 | current = regulator_get_current(dev); | |
217 | mode = regulator_get_mode(dev); | |
218 | mode_name = get_mode_name(pdata->mode, pdata->mode_count, mode); | |
219 | printf("%-20s %-10s ", pdata->name, enabled ? "enabled" : "disabled"); | |
220 | if (value >= 0) | |
221 | printf("%10d ", value); | |
222 | else | |
223 | printf("%10s ", "-"); | |
224 | if (current >= 0) | |
225 | printf("%10d ", current); | |
226 | else | |
227 | printf("%10s ", "-"); | |
228 | if (mode >= 0) | |
229 | printf("%-10s", mode_name); | |
230 | else | |
231 | printf("%-10s", "-"); | |
232 | printf("\n"); | |
233 | } | |
234 | ||
235 | static int do_status(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
236 | { | |
237 | struct dm_regulator_uclass_platdata *uc_pdata; | |
238 | struct udevice *dev; | |
239 | int ret; | |
240 | ||
241 | if (currdev && (argc < 2 || strcmp(argv[1], "-a"))) { | |
242 | ret = curr_dev_and_platdata(&dev, &uc_pdata, true); | |
243 | if (ret) | |
244 | return CMD_RET_FAILURE; | |
245 | do_status_detail(dev, uc_pdata); | |
246 | return 0; | |
247 | } | |
248 | ||
249 | /* Show all of them in a list, probing them as needed */ | |
250 | printf("%-20s %-10s %10s %10s %-10s\n", "Name", "Enabled", "uV", "mA", | |
251 | "Mode"); | |
252 | for (ret = uclass_first_device(UCLASS_REGULATOR, &dev); dev; | |
253 | ret = uclass_next_device(&dev)) | |
254 | do_status_line(dev); | |
6262b72b PM |
255 | |
256 | return CMD_RET_SUCCESS; | |
257 | } | |
258 | ||
259 | static int do_value(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
260 | { | |
261 | struct udevice *dev; | |
262 | struct dm_regulator_uclass_platdata *uc_pdata; | |
263 | int value; | |
264 | int force; | |
265 | int ret; | |
266 | ||
e09b2a02 | 267 | ret = curr_dev_and_platdata(&dev, &uc_pdata, argc == 1); |
6262b72b PM |
268 | if (ret) |
269 | return ret; | |
270 | ||
271 | if (argc == 1) { | |
e09b2a02 PM |
272 | ret = regulator_get_value(dev); |
273 | if (ret < 0) { | |
274 | printf("Regulator: %s - can't get the Voltage!\n", | |
275 | uc_pdata->name); | |
276 | return failure(ret); | |
277 | } | |
6262b72b | 278 | |
e09b2a02 | 279 | printf("%d uV\n", ret); |
6262b72b PM |
280 | return CMD_RET_SUCCESS; |
281 | } | |
282 | ||
283 | if (argc == 3) | |
284 | force = !strcmp("-f", argv[2]); | |
285 | else | |
286 | force = 0; | |
287 | ||
288 | value = simple_strtoul(argv[1], NULL, 0); | |
289 | if ((value < uc_pdata->min_uV || value > uc_pdata->max_uV) && !force) { | |
224d1ddc SG |
290 | printf("Value exceeds regulator constraint limits %d..%d uV\n", |
291 | uc_pdata->min_uV, uc_pdata->max_uV); | |
6262b72b PM |
292 | return CMD_RET_FAILURE; |
293 | } | |
294 | ||
2f5d532f K |
295 | if (!force) |
296 | ret = regulator_set_value(dev, value); | |
297 | else | |
298 | ret = regulator_set_value_force(dev, value); | |
e09b2a02 PM |
299 | if (ret) { |
300 | printf("Regulator: %s - can't set the Voltage!\n", | |
301 | uc_pdata->name); | |
302 | return failure(ret); | |
303 | } | |
6262b72b PM |
304 | |
305 | return CMD_RET_SUCCESS; | |
306 | } | |
307 | ||
308 | static int do_current(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
309 | { | |
310 | struct udevice *dev; | |
311 | struct dm_regulator_uclass_platdata *uc_pdata; | |
312 | int current; | |
313 | int ret; | |
314 | ||
e09b2a02 | 315 | ret = curr_dev_and_platdata(&dev, &uc_pdata, argc == 1); |
6262b72b PM |
316 | if (ret) |
317 | return ret; | |
318 | ||
319 | if (argc == 1) { | |
e09b2a02 PM |
320 | ret = regulator_get_current(dev); |
321 | if (ret < 0) { | |
322 | printf("Regulator: %s - can't get the Current!\n", | |
323 | uc_pdata->name); | |
324 | return failure(ret); | |
325 | } | |
6262b72b | 326 | |
e09b2a02 | 327 | printf("%d uA\n", ret); |
6262b72b PM |
328 | return CMD_RET_SUCCESS; |
329 | } | |
330 | ||
331 | current = simple_strtoul(argv[1], NULL, 0); | |
332 | if (current < uc_pdata->min_uA || current > uc_pdata->max_uA) { | |
333 | printf("Current exceeds regulator constraint limits\n"); | |
334 | return CMD_RET_FAILURE; | |
335 | } | |
336 | ||
337 | ret = regulator_set_current(dev, current); | |
e09b2a02 PM |
338 | if (ret) { |
339 | printf("Regulator: %s - can't set the Current!\n", | |
340 | uc_pdata->name); | |
341 | return failure(ret); | |
342 | } | |
6262b72b PM |
343 | |
344 | return CMD_RET_SUCCESS; | |
345 | } | |
346 | ||
347 | static int do_mode(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
348 | { | |
349 | struct udevice *dev; | |
350 | struct dm_regulator_uclass_platdata *uc_pdata; | |
6262b72b PM |
351 | int mode; |
352 | int ret; | |
353 | ||
e09b2a02 | 354 | ret = curr_dev_and_platdata(&dev, &uc_pdata, false); |
6262b72b PM |
355 | if (ret) |
356 | return ret; | |
357 | ||
358 | if (argc == 1) { | |
e09b2a02 PM |
359 | ret = regulator_get_mode(dev); |
360 | if (ret < 0) { | |
361 | printf("Regulator: %s - can't get the operation mode!\n", | |
362 | uc_pdata->name); | |
363 | return failure(ret); | |
364 | } | |
6262b72b | 365 | |
e09b2a02 | 366 | printf("mode id: %d\n", ret); |
6262b72b PM |
367 | return CMD_RET_SUCCESS; |
368 | } | |
369 | ||
e09b2a02 | 370 | mode = simple_strtoul(argv[1], NULL, 0); |
6262b72b | 371 | |
e09b2a02 PM |
372 | ret = regulator_set_mode(dev, mode); |
373 | if (ret) { | |
374 | printf("Regulator: %s - can't set the operation mode!\n", | |
375 | uc_pdata->name); | |
376 | return failure(ret); | |
377 | } | |
6262b72b PM |
378 | |
379 | return CMD_RET_SUCCESS; | |
380 | } | |
381 | ||
382 | static int do_enable(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
383 | { | |
384 | struct udevice *dev; | |
385 | struct dm_regulator_uclass_platdata *uc_pdata; | |
386 | int ret; | |
387 | ||
e09b2a02 | 388 | ret = curr_dev_and_platdata(&dev, &uc_pdata, true); |
6262b72b PM |
389 | if (ret) |
390 | return ret; | |
391 | ||
392 | ret = regulator_set_enable(dev, true); | |
e09b2a02 PM |
393 | if (ret) { |
394 | printf("Regulator: %s - can't enable!\n", uc_pdata->name); | |
395 | return failure(ret); | |
396 | } | |
6262b72b PM |
397 | |
398 | return CMD_RET_SUCCESS; | |
399 | } | |
400 | ||
401 | static int do_disable(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
402 | { | |
403 | struct udevice *dev; | |
404 | struct dm_regulator_uclass_platdata *uc_pdata; | |
405 | int ret; | |
406 | ||
e09b2a02 | 407 | ret = curr_dev_and_platdata(&dev, &uc_pdata, true); |
6262b72b PM |
408 | if (ret) |
409 | return ret; | |
410 | ||
411 | ret = regulator_set_enable(dev, false); | |
e09b2a02 PM |
412 | if (ret) { |
413 | printf("Regulator: %s - can't disable!\n", uc_pdata->name); | |
414 | return failure(ret); | |
415 | } | |
6262b72b PM |
416 | |
417 | return CMD_RET_SUCCESS; | |
418 | } | |
419 | ||
420 | static cmd_tbl_t subcmd[] = { | |
421 | U_BOOT_CMD_MKENT(dev, 2, 1, do_dev, "", ""), | |
422 | U_BOOT_CMD_MKENT(list, 1, 1, do_list, "", ""), | |
423 | U_BOOT_CMD_MKENT(info, 2, 1, do_info, "", ""), | |
424 | U_BOOT_CMD_MKENT(status, 2, 1, do_status, "", ""), | |
425 | U_BOOT_CMD_MKENT(value, 3, 1, do_value, "", ""), | |
426 | U_BOOT_CMD_MKENT(current, 3, 1, do_current, "", ""), | |
427 | U_BOOT_CMD_MKENT(mode, 2, 1, do_mode, "", ""), | |
428 | U_BOOT_CMD_MKENT(enable, 1, 1, do_enable, "", ""), | |
429 | U_BOOT_CMD_MKENT(disable, 1, 1, do_disable, "", ""), | |
430 | }; | |
431 | ||
432 | static int do_regulator(cmd_tbl_t *cmdtp, int flag, int argc, | |
433 | char * const argv[]) | |
434 | { | |
435 | cmd_tbl_t *cmd; | |
436 | ||
437 | argc--; | |
438 | argv++; | |
439 | ||
440 | cmd = find_cmd_tbl(argv[0], subcmd, ARRAY_SIZE(subcmd)); | |
441 | if (cmd == NULL || argc > cmd->maxargs) | |
442 | return CMD_RET_USAGE; | |
443 | ||
444 | return cmd->cmd(cmdtp, flag, argc, argv); | |
445 | } | |
446 | ||
447 | U_BOOT_CMD(regulator, CONFIG_SYS_MAXARGS, 1, do_regulator, | |
448 | "uclass operations", | |
e09b2a02 PM |
449 | "list - list UCLASS regulator devices\n" |
450 | "regulator dev [regulator-name] - show/[set] operating regulator device\n" | |
451 | "regulator info - print constraints info\n" | |
931b24c5 | 452 | "regulator status [-a] - print operating status [for all]\n" |
e09b2a02 PM |
453 | "regulator value [val] [-f] - print/[set] voltage value [uV] (force)\n" |
454 | "regulator current [val] - print/[set] current value [uA]\n" | |
455 | "regulator mode [id] - print/[set] operating mode id\n" | |
456 | "regulator enable - enable the regulator output\n" | |
457 | "regulator disable - disable the regulator output\n" | |
6262b72b | 458 | ); |