2 * Copyright (C) 2014-2015 Samsung Electronics
3 * Przemyslaw Marczak <p.marczak@samsung.com>
5 * SPDX-License-Identifier: GPL-2.0+
10 #include <dm/uclass-internal.h>
11 #include <power/regulator.h>
13 #define LIMIT_DEVNAME 20
14 #define LIMIT_OFNAME 32
17 static struct udevice *currdev;
19 static int failure(int ret)
21 printf("Error: %d (%s)\n", ret, errno_str(ret));
23 return CMD_RET_FAILURE;
26 static int do_dev(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
28 struct dm_regulator_uclass_platdata *uc_pdata;
35 ret = regulator_get_by_platname(name, &currdev);
37 printf("Can't get the regulator: %s!\n", name);
42 printf("Regulator device is not set!\n\n");
46 uc_pdata = dev_get_uclass_platdata(currdev);
48 printf("%s: no regulator platform data!\n", currdev->name);
52 printf("dev: %s @ %s\n", uc_pdata->name, currdev->name);
55 return CMD_RET_SUCCESS;
58 static int curr_dev_and_platdata(struct udevice **devp,
59 struct dm_regulator_uclass_platdata **uc_pdata,
60 bool allow_type_fixed)
66 printf("First, set the regulator device!\n");
67 return CMD_RET_FAILURE;
72 *uc_pdata = dev_get_uclass_platdata(*devp);
74 error("Regulator: %s - missing platform data!", currdev->name);
75 return CMD_RET_FAILURE;
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;
83 return CMD_RET_SUCCESS;
86 static int do_list(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
88 struct dm_regulator_uclass_platdata *uc_pdata;
92 printf("| %-*.*s| %-*.*s| %s\n",
93 LIMIT_DEVNAME, LIMIT_DEVNAME, "Device",
94 LIMIT_OFNAME, LIMIT_OFNAME, "regulator-name",
97 for (ret = uclass_find_first_device(UCLASS_REGULATOR, &dev); dev;
98 ret = uclass_find_next_device(&dev)) {
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,
112 static int constraint(const char *name, int val, const char *val_name)
114 printf("%-*s", LIMIT_INFO, name);
116 printf(" %s (err: %d)\n", errno_str(val), val);
121 printf(" %d (%s)\n", val, val_name);
123 printf(" %d\n", val);
128 static const char *get_mode_name(struct dm_regulator_mode *mode,
132 while (mode_count--) {
133 if (mode->id == mode_id)
141 static int do_info(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
144 struct dm_regulator_uclass_platdata *uc_pdata;
145 struct dm_regulator_mode *modes;
146 const char *parent_uc;
151 ret = curr_dev_and_platdata(&dev, &uc_pdata, true);
155 parent_uc = dev_get_uclass_name(dev->parent);
157 printf("%s\n%-*s %s\n%-*s %s\n%-*s %s\n%-*s %s\n%-*s\n",
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,
163 LIMIT_INFO, "* constraints:");
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");
174 mode_count = regulator_mode(dev, &modes);
175 constraint("* op modes:", mode_count, NULL);
177 for (i = 0; i < mode_count; i++, modes++)
178 constraint(" - mode id:", modes->id, modes->name);
180 return CMD_RET_SUCCESS;
183 static void do_status_detail(struct udevice *dev,
184 struct dm_regulator_uclass_platdata *uc_pdata)
186 int current, value, mode;
187 const char *mode_name;
190 printf("Regulator %s status:\n", uc_pdata->name);
192 enabled = regulator_get_enable(dev);
193 constraint(" * enable:", enabled, enabled ? "true" : "false");
195 value = regulator_get_value(dev);
196 constraint(" * value uV:", value, NULL);
198 current = regulator_get_current(dev);
199 constraint(" * current uA:", current, NULL);
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);
206 static void do_status_line(struct udevice *dev)
208 struct dm_regulator_uclass_platdata *pdata;
209 int current, value, mode;
210 const char *mode_name;
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");
221 printf("%10d ", value);
223 printf("%10s ", "-");
225 printf("%10d ", current);
227 printf("%10s ", "-");
229 printf("%-10s", mode_name);
231 printf("%-10s", "-");
235 static int do_status(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
237 struct dm_regulator_uclass_platdata *uc_pdata;
241 if (currdev && (argc < 2 || strcmp(argv[1], "-a"))) {
242 ret = curr_dev_and_platdata(&dev, &uc_pdata, true);
244 return CMD_RET_FAILURE;
245 do_status_detail(dev, uc_pdata);
249 /* Show all of them in a list, probing them as needed */
250 printf("%-20s %-10s %10s %10s %-10s\n", "Name", "Enabled", "uV", "mA",
252 for (ret = uclass_first_device(UCLASS_REGULATOR, &dev); dev;
253 ret = uclass_next_device(&dev))
256 return CMD_RET_SUCCESS;
259 static int do_value(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
262 struct dm_regulator_uclass_platdata *uc_pdata;
267 ret = curr_dev_and_platdata(&dev, &uc_pdata, argc == 1);
272 ret = regulator_get_value(dev);
274 printf("Regulator: %s - can't get the Voltage!\n",
279 printf("%d uV\n", ret);
280 return CMD_RET_SUCCESS;
284 force = !strcmp("-f", argv[2]);
288 value = simple_strtoul(argv[1], NULL, 0);
289 if ((value < uc_pdata->min_uV || value > uc_pdata->max_uV) && !force) {
290 printf("Value exceeds regulator constraint limits %d..%d uV\n",
291 uc_pdata->min_uV, uc_pdata->max_uV);
292 return CMD_RET_FAILURE;
295 ret = regulator_set_value(dev, value);
297 printf("Regulator: %s - can't set the Voltage!\n",
302 return CMD_RET_SUCCESS;
305 static int do_current(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
308 struct dm_regulator_uclass_platdata *uc_pdata;
312 ret = curr_dev_and_platdata(&dev, &uc_pdata, argc == 1);
317 ret = regulator_get_current(dev);
319 printf("Regulator: %s - can't get the Current!\n",
324 printf("%d uA\n", ret);
325 return CMD_RET_SUCCESS;
328 current = simple_strtoul(argv[1], NULL, 0);
329 if (current < uc_pdata->min_uA || current > uc_pdata->max_uA) {
330 printf("Current exceeds regulator constraint limits\n");
331 return CMD_RET_FAILURE;
334 ret = regulator_set_current(dev, current);
336 printf("Regulator: %s - can't set the Current!\n",
341 return CMD_RET_SUCCESS;
344 static int do_mode(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
347 struct dm_regulator_uclass_platdata *uc_pdata;
351 ret = curr_dev_and_platdata(&dev, &uc_pdata, false);
356 ret = regulator_get_mode(dev);
358 printf("Regulator: %s - can't get the operation mode!\n",
363 printf("mode id: %d\n", ret);
364 return CMD_RET_SUCCESS;
367 mode = simple_strtoul(argv[1], NULL, 0);
369 ret = regulator_set_mode(dev, mode);
371 printf("Regulator: %s - can't set the operation mode!\n",
376 return CMD_RET_SUCCESS;
379 static int do_enable(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
382 struct dm_regulator_uclass_platdata *uc_pdata;
385 ret = curr_dev_and_platdata(&dev, &uc_pdata, true);
389 ret = regulator_set_enable(dev, true);
391 printf("Regulator: %s - can't enable!\n", uc_pdata->name);
395 return CMD_RET_SUCCESS;
398 static int do_disable(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
401 struct dm_regulator_uclass_platdata *uc_pdata;
404 ret = curr_dev_and_platdata(&dev, &uc_pdata, true);
408 ret = regulator_set_enable(dev, false);
410 printf("Regulator: %s - can't disable!\n", uc_pdata->name);
414 return CMD_RET_SUCCESS;
417 static cmd_tbl_t subcmd[] = {
418 U_BOOT_CMD_MKENT(dev, 2, 1, do_dev, "", ""),
419 U_BOOT_CMD_MKENT(list, 1, 1, do_list, "", ""),
420 U_BOOT_CMD_MKENT(info, 2, 1, do_info, "", ""),
421 U_BOOT_CMD_MKENT(status, 2, 1, do_status, "", ""),
422 U_BOOT_CMD_MKENT(value, 3, 1, do_value, "", ""),
423 U_BOOT_CMD_MKENT(current, 3, 1, do_current, "", ""),
424 U_BOOT_CMD_MKENT(mode, 2, 1, do_mode, "", ""),
425 U_BOOT_CMD_MKENT(enable, 1, 1, do_enable, "", ""),
426 U_BOOT_CMD_MKENT(disable, 1, 1, do_disable, "", ""),
429 static int do_regulator(cmd_tbl_t *cmdtp, int flag, int argc,
437 cmd = find_cmd_tbl(argv[0], subcmd, ARRAY_SIZE(subcmd));
438 if (cmd == NULL || argc > cmd->maxargs)
439 return CMD_RET_USAGE;
441 return cmd->cmd(cmdtp, flag, argc, argv);
444 U_BOOT_CMD(regulator, CONFIG_SYS_MAXARGS, 1, do_regulator,
446 "list - list UCLASS regulator devices\n"
447 "regulator dev [regulator-name] - show/[set] operating regulator device\n"
448 "regulator info - print constraints info\n"
449 "regulator status [-a] - print operating status [for all]\n"
450 "regulator value [val] [-f] - print/[set] voltage value [uV] (force)\n"
451 "regulator current [val] - print/[set] current value [uA]\n"
452 "regulator mode [id] - print/[set] operating mode id\n"
453 "regulator enable - enable the regulator output\n"
454 "regulator disable - disable the regulator output\n"