]>
Commit | Line | Data |
---|---|---|
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 | ||
183 | static int do_status(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
184 | { | |
185 | struct dm_regulator_uclass_platdata *uc_pdata; | |
186 | int current, value, mode, ret; | |
187 | const char *mode_name = NULL; | |
188 | struct udevice *dev; | |
189 | bool enabled; | |
190 | ||
e09b2a02 | 191 | ret = curr_dev_and_platdata(&dev, &uc_pdata, true); |
6262b72b PM |
192 | if (ret) |
193 | return ret; | |
194 | ||
e09b2a02 PM |
195 | printf("Regulator %s status:\n", uc_pdata->name); |
196 | ||
6262b72b PM |
197 | enabled = regulator_get_enable(dev); |
198 | constraint(" * enable:", enabled, enabled ? "true" : "false"); | |
199 | ||
200 | value = regulator_get_value(dev); | |
201 | constraint(" * value uV:", value, NULL); | |
202 | ||
203 | current = regulator_get_current(dev); | |
204 | constraint(" * current uA:", current, NULL); | |
205 | ||
206 | mode = regulator_get_mode(dev); | |
207 | mode_name = get_mode_name(uc_pdata->mode, uc_pdata->mode_count, mode); | |
208 | constraint(" * mode id:", mode, mode_name); | |
209 | ||
210 | return CMD_RET_SUCCESS; | |
211 | } | |
212 | ||
213 | static int do_value(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
214 | { | |
215 | struct udevice *dev; | |
216 | struct dm_regulator_uclass_platdata *uc_pdata; | |
217 | int value; | |
218 | int force; | |
219 | int ret; | |
220 | ||
e09b2a02 | 221 | ret = curr_dev_and_platdata(&dev, &uc_pdata, argc == 1); |
6262b72b PM |
222 | if (ret) |
223 | return ret; | |
224 | ||
225 | if (argc == 1) { | |
e09b2a02 PM |
226 | ret = regulator_get_value(dev); |
227 | if (ret < 0) { | |
228 | printf("Regulator: %s - can't get the Voltage!\n", | |
229 | uc_pdata->name); | |
230 | return failure(ret); | |
231 | } | |
6262b72b | 232 | |
e09b2a02 | 233 | printf("%d uV\n", ret); |
6262b72b PM |
234 | return CMD_RET_SUCCESS; |
235 | } | |
236 | ||
237 | if (argc == 3) | |
238 | force = !strcmp("-f", argv[2]); | |
239 | else | |
240 | force = 0; | |
241 | ||
242 | value = simple_strtoul(argv[1], NULL, 0); | |
243 | if ((value < uc_pdata->min_uV || value > uc_pdata->max_uV) && !force) { | |
224d1ddc SG |
244 | printf("Value exceeds regulator constraint limits %d..%d uV\n", |
245 | uc_pdata->min_uV, uc_pdata->max_uV); | |
6262b72b PM |
246 | return CMD_RET_FAILURE; |
247 | } | |
248 | ||
249 | ret = regulator_set_value(dev, value); | |
e09b2a02 PM |
250 | if (ret) { |
251 | printf("Regulator: %s - can't set the Voltage!\n", | |
252 | uc_pdata->name); | |
253 | return failure(ret); | |
254 | } | |
6262b72b PM |
255 | |
256 | return CMD_RET_SUCCESS; | |
257 | } | |
258 | ||
259 | static int do_current(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 current; | |
264 | int ret; | |
265 | ||
e09b2a02 | 266 | ret = curr_dev_and_platdata(&dev, &uc_pdata, argc == 1); |
6262b72b PM |
267 | if (ret) |
268 | return ret; | |
269 | ||
270 | if (argc == 1) { | |
e09b2a02 PM |
271 | ret = regulator_get_current(dev); |
272 | if (ret < 0) { | |
273 | printf("Regulator: %s - can't get the Current!\n", | |
274 | uc_pdata->name); | |
275 | return failure(ret); | |
276 | } | |
6262b72b | 277 | |
e09b2a02 | 278 | printf("%d uA\n", ret); |
6262b72b PM |
279 | return CMD_RET_SUCCESS; |
280 | } | |
281 | ||
282 | current = simple_strtoul(argv[1], NULL, 0); | |
283 | if (current < uc_pdata->min_uA || current > uc_pdata->max_uA) { | |
284 | printf("Current exceeds regulator constraint limits\n"); | |
285 | return CMD_RET_FAILURE; | |
286 | } | |
287 | ||
288 | ret = regulator_set_current(dev, current); | |
e09b2a02 PM |
289 | if (ret) { |
290 | printf("Regulator: %s - can't set the Current!\n", | |
291 | uc_pdata->name); | |
292 | return failure(ret); | |
293 | } | |
6262b72b PM |
294 | |
295 | return CMD_RET_SUCCESS; | |
296 | } | |
297 | ||
298 | static int do_mode(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
299 | { | |
300 | struct udevice *dev; | |
301 | struct dm_regulator_uclass_platdata *uc_pdata; | |
6262b72b PM |
302 | int mode; |
303 | int ret; | |
304 | ||
e09b2a02 | 305 | ret = curr_dev_and_platdata(&dev, &uc_pdata, false); |
6262b72b PM |
306 | if (ret) |
307 | return ret; | |
308 | ||
309 | if (argc == 1) { | |
e09b2a02 PM |
310 | ret = regulator_get_mode(dev); |
311 | if (ret < 0) { | |
312 | printf("Regulator: %s - can't get the operation mode!\n", | |
313 | uc_pdata->name); | |
314 | return failure(ret); | |
315 | } | |
6262b72b | 316 | |
e09b2a02 | 317 | printf("mode id: %d\n", ret); |
6262b72b PM |
318 | return CMD_RET_SUCCESS; |
319 | } | |
320 | ||
e09b2a02 | 321 | mode = simple_strtoul(argv[1], NULL, 0); |
6262b72b | 322 | |
e09b2a02 PM |
323 | ret = regulator_set_mode(dev, mode); |
324 | if (ret) { | |
325 | printf("Regulator: %s - can't set the operation mode!\n", | |
326 | uc_pdata->name); | |
327 | return failure(ret); | |
328 | } | |
6262b72b PM |
329 | |
330 | return CMD_RET_SUCCESS; | |
331 | } | |
332 | ||
333 | static int do_enable(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
334 | { | |
335 | struct udevice *dev; | |
336 | struct dm_regulator_uclass_platdata *uc_pdata; | |
337 | int ret; | |
338 | ||
e09b2a02 | 339 | ret = curr_dev_and_platdata(&dev, &uc_pdata, true); |
6262b72b PM |
340 | if (ret) |
341 | return ret; | |
342 | ||
343 | ret = regulator_set_enable(dev, true); | |
e09b2a02 PM |
344 | if (ret) { |
345 | printf("Regulator: %s - can't enable!\n", uc_pdata->name); | |
346 | return failure(ret); | |
347 | } | |
6262b72b PM |
348 | |
349 | return CMD_RET_SUCCESS; | |
350 | } | |
351 | ||
352 | static int do_disable(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
353 | { | |
354 | struct udevice *dev; | |
355 | struct dm_regulator_uclass_platdata *uc_pdata; | |
356 | int ret; | |
357 | ||
e09b2a02 | 358 | ret = curr_dev_and_platdata(&dev, &uc_pdata, true); |
6262b72b PM |
359 | if (ret) |
360 | return ret; | |
361 | ||
362 | ret = regulator_set_enable(dev, false); | |
e09b2a02 PM |
363 | if (ret) { |
364 | printf("Regulator: %s - can't disable!\n", uc_pdata->name); | |
365 | return failure(ret); | |
366 | } | |
6262b72b PM |
367 | |
368 | return CMD_RET_SUCCESS; | |
369 | } | |
370 | ||
371 | static cmd_tbl_t subcmd[] = { | |
372 | U_BOOT_CMD_MKENT(dev, 2, 1, do_dev, "", ""), | |
373 | U_BOOT_CMD_MKENT(list, 1, 1, do_list, "", ""), | |
374 | U_BOOT_CMD_MKENT(info, 2, 1, do_info, "", ""), | |
375 | U_BOOT_CMD_MKENT(status, 2, 1, do_status, "", ""), | |
376 | U_BOOT_CMD_MKENT(value, 3, 1, do_value, "", ""), | |
377 | U_BOOT_CMD_MKENT(current, 3, 1, do_current, "", ""), | |
378 | U_BOOT_CMD_MKENT(mode, 2, 1, do_mode, "", ""), | |
379 | U_BOOT_CMD_MKENT(enable, 1, 1, do_enable, "", ""), | |
380 | U_BOOT_CMD_MKENT(disable, 1, 1, do_disable, "", ""), | |
381 | }; | |
382 | ||
383 | static int do_regulator(cmd_tbl_t *cmdtp, int flag, int argc, | |
384 | char * const argv[]) | |
385 | { | |
386 | cmd_tbl_t *cmd; | |
387 | ||
388 | argc--; | |
389 | argv++; | |
390 | ||
391 | cmd = find_cmd_tbl(argv[0], subcmd, ARRAY_SIZE(subcmd)); | |
392 | if (cmd == NULL || argc > cmd->maxargs) | |
393 | return CMD_RET_USAGE; | |
394 | ||
395 | return cmd->cmd(cmdtp, flag, argc, argv); | |
396 | } | |
397 | ||
398 | U_BOOT_CMD(regulator, CONFIG_SYS_MAXARGS, 1, do_regulator, | |
399 | "uclass operations", | |
e09b2a02 PM |
400 | "list - list UCLASS regulator devices\n" |
401 | "regulator dev [regulator-name] - show/[set] operating regulator device\n" | |
402 | "regulator info - print constraints info\n" | |
403 | "regulator status - print operating status\n" | |
404 | "regulator value [val] [-f] - print/[set] voltage value [uV] (force)\n" | |
405 | "regulator current [val] - print/[set] current value [uA]\n" | |
406 | "regulator mode [id] - print/[set] operating mode id\n" | |
407 | "regulator enable - enable the regulator output\n" | |
408 | "regulator disable - disable the regulator output\n" | |
6262b72b | 409 | ); |