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-rw-r--r--cmd/regulator.c455
1 files changed, 455 insertions, 0 deletions
diff --git a/cmd/regulator.c b/cmd/regulator.c
new file mode 100644
index 0000000..bfea6e0
--- /dev/null
+++ b/cmd/regulator.c
@@ -0,0 +1,455 @@
+/*
+ * Copyright (C) 2014-2015 Samsung Electronics
+ * Przemyslaw Marczak <p.marczak@samsung.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+#include <common.h>
+#include <errno.h>
+#include <dm.h>
+#include <dm/uclass-internal.h>
+#include <power/regulator.h>
+
+#define LIMIT_DEVNAME 20
+#define LIMIT_OFNAME 32
+#define LIMIT_INFO 18
+
+static struct udevice *currdev;
+
+static int failure(int ret)
+{
+ printf("Error: %d (%s)\n", ret, errno_str(ret));
+
+ return CMD_RET_FAILURE;
+}
+
+static int do_dev(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ struct dm_regulator_uclass_platdata *uc_pdata;
+ const char *name;
+ int ret = -ENXIO;
+
+ switch (argc) {
+ case 2:
+ name = argv[1];
+ ret = regulator_get_by_platname(name, &currdev);
+ if (ret) {
+ printf("Can't get the regulator: %s!\n", name);
+ return failure(ret);
+ }
+ case 1:
+ if (!currdev) {
+ printf("Regulator device is not set!\n\n");
+ return CMD_RET_USAGE;
+ }
+
+ uc_pdata = dev_get_uclass_platdata(currdev);
+ if (!uc_pdata) {
+ printf("%s: no regulator platform data!\n", currdev->name);
+ return failure(ret);
+ }
+
+ printf("dev: %s @ %s\n", uc_pdata->name, currdev->name);
+ }
+
+ return CMD_RET_SUCCESS;
+}
+
+static int curr_dev_and_platdata(struct udevice **devp,
+ struct dm_regulator_uclass_platdata **uc_pdata,
+ bool allow_type_fixed)
+{
+ *devp = NULL;
+ *uc_pdata = NULL;
+
+ if (!currdev) {
+ printf("First, set the regulator device!\n");
+ return CMD_RET_FAILURE;
+ }
+
+ *devp = currdev;
+
+ *uc_pdata = dev_get_uclass_platdata(*devp);
+ if (!*uc_pdata) {
+ error("Regulator: %s - missing platform data!", currdev->name);
+ return CMD_RET_FAILURE;
+ }
+
+ if (!allow_type_fixed && (*uc_pdata)->type == REGULATOR_TYPE_FIXED) {
+ printf("Operation not allowed for fixed regulator!\n");
+ return CMD_RET_FAILURE;
+ }
+
+ return CMD_RET_SUCCESS;
+}
+
+static int do_list(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ struct dm_regulator_uclass_platdata *uc_pdata;
+ struct udevice *dev;
+ int ret;
+
+ printf("| %-*.*s| %-*.*s| %s\n",
+ LIMIT_DEVNAME, LIMIT_DEVNAME, "Device",
+ LIMIT_OFNAME, LIMIT_OFNAME, "regulator-name",
+ "Parent");
+
+ for (ret = uclass_find_first_device(UCLASS_REGULATOR, &dev); dev;
+ ret = uclass_find_next_device(&dev)) {
+ if (ret)
+ continue;
+
+ uc_pdata = dev_get_uclass_platdata(dev);
+ printf("| %-*.*s| %-*.*s| %s\n",
+ LIMIT_DEVNAME, LIMIT_DEVNAME, dev->name,
+ LIMIT_OFNAME, LIMIT_OFNAME, uc_pdata->name,
+ dev->parent->name);
+ }
+
+ return ret;
+}
+
+static int constraint(const char *name, int val, const char *val_name)
+{
+ printf("%-*s", LIMIT_INFO, name);
+ if (val < 0) {
+ printf(" %s (err: %d)\n", errno_str(val), val);
+ return val;
+ }
+
+ if (val_name)
+ printf(" %d (%s)\n", val, val_name);
+ else
+ printf(" %d\n", val);
+
+ return 0;
+}
+
+static const char *get_mode_name(struct dm_regulator_mode *mode,
+ int mode_count,
+ int mode_id)
+{
+ while (mode_count--) {
+ if (mode->id == mode_id)
+ return mode->name;
+ mode++;
+ }
+
+ return NULL;
+}
+
+static int do_info(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ struct udevice *dev;
+ struct dm_regulator_uclass_platdata *uc_pdata;
+ struct dm_regulator_mode *modes;
+ const char *parent_uc;
+ int mode_count;
+ int ret;
+ int i;
+
+ ret = curr_dev_and_platdata(&dev, &uc_pdata, true);
+ if (ret)
+ return ret;
+
+ parent_uc = dev_get_uclass_name(dev->parent);
+
+ printf("%s\n%-*s %s\n%-*s %s\n%-*s %s\n%-*s %s\n%-*s\n",
+ "Regulator info:",
+ LIMIT_INFO, "* regulator-name:", uc_pdata->name,
+ LIMIT_INFO, "* device name:", dev->name,
+ LIMIT_INFO, "* parent name:", dev->parent->name,
+ LIMIT_INFO, "* parent uclass:", parent_uc,
+ LIMIT_INFO, "* constraints:");
+
+ constraint(" - min uV:", uc_pdata->min_uV, NULL);
+ constraint(" - max uV:", uc_pdata->max_uV, NULL);
+ constraint(" - min uA:", uc_pdata->min_uA, NULL);
+ constraint(" - max uA:", uc_pdata->max_uA, NULL);
+ constraint(" - always on:", uc_pdata->always_on,
+ uc_pdata->always_on ? "true" : "false");
+ constraint(" - boot on:", uc_pdata->boot_on,
+ uc_pdata->boot_on ? "true" : "false");
+
+ mode_count = regulator_mode(dev, &modes);
+ constraint("* op modes:", mode_count, NULL);
+
+ for (i = 0; i < mode_count; i++, modes++)
+ constraint(" - mode id:", modes->id, modes->name);
+
+ return CMD_RET_SUCCESS;
+}
+
+static void do_status_detail(struct udevice *dev,
+ struct dm_regulator_uclass_platdata *uc_pdata)
+{
+ int current, value, mode;
+ const char *mode_name;
+ bool enabled;
+
+ printf("Regulator %s status:\n", uc_pdata->name);
+
+ enabled = regulator_get_enable(dev);
+ constraint(" * enable:", enabled, enabled ? "true" : "false");
+
+ value = regulator_get_value(dev);
+ constraint(" * value uV:", value, NULL);
+
+ current = regulator_get_current(dev);
+ constraint(" * current uA:", current, NULL);
+
+ mode = regulator_get_mode(dev);
+ mode_name = get_mode_name(uc_pdata->mode, uc_pdata->mode_count, mode);
+ constraint(" * mode id:", mode, mode_name);
+}
+
+static void do_status_line(struct udevice *dev)
+{
+ struct dm_regulator_uclass_platdata *pdata;
+ int current, value, mode;
+ const char *mode_name;
+ bool enabled;
+
+ pdata = dev_get_uclass_platdata(dev);
+ enabled = regulator_get_enable(dev);
+ value = regulator_get_value(dev);
+ current = regulator_get_current(dev);
+ mode = regulator_get_mode(dev);
+ mode_name = get_mode_name(pdata->mode, pdata->mode_count, mode);
+ printf("%-20s %-10s ", pdata->name, enabled ? "enabled" : "disabled");
+ if (value >= 0)
+ printf("%10d ", value);
+ else
+ printf("%10s ", "-");
+ if (current >= 0)
+ printf("%10d ", current);
+ else
+ printf("%10s ", "-");
+ if (mode >= 0)
+ printf("%-10s", mode_name);
+ else
+ printf("%-10s", "-");
+ printf("\n");
+}
+
+static int do_status(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ struct dm_regulator_uclass_platdata *uc_pdata;
+ struct udevice *dev;
+ int ret;
+
+ if (currdev && (argc < 2 || strcmp(argv[1], "-a"))) {
+ ret = curr_dev_and_platdata(&dev, &uc_pdata, true);
+ if (ret)
+ return CMD_RET_FAILURE;
+ do_status_detail(dev, uc_pdata);
+ return 0;
+ }
+
+ /* Show all of them in a list, probing them as needed */
+ printf("%-20s %-10s %10s %10s %-10s\n", "Name", "Enabled", "uV", "mA",
+ "Mode");
+ for (ret = uclass_first_device(UCLASS_REGULATOR, &dev); dev;
+ ret = uclass_next_device(&dev))
+ do_status_line(dev);
+
+ return CMD_RET_SUCCESS;
+}
+
+static int do_value(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ struct udevice *dev;
+ struct dm_regulator_uclass_platdata *uc_pdata;
+ int value;
+ int force;
+ int ret;
+
+ ret = curr_dev_and_platdata(&dev, &uc_pdata, argc == 1);
+ if (ret)
+ return ret;
+
+ if (argc == 1) {
+ ret = regulator_get_value(dev);
+ if (ret < 0) {
+ printf("Regulator: %s - can't get the Voltage!\n",
+ uc_pdata->name);
+ return failure(ret);
+ }
+
+ printf("%d uV\n", ret);
+ return CMD_RET_SUCCESS;
+ }
+
+ if (argc == 3)
+ force = !strcmp("-f", argv[2]);
+ else
+ force = 0;
+
+ value = simple_strtoul(argv[1], NULL, 0);
+ if ((value < uc_pdata->min_uV || value > uc_pdata->max_uV) && !force) {
+ printf("Value exceeds regulator constraint limits %d..%d uV\n",
+ uc_pdata->min_uV, uc_pdata->max_uV);
+ return CMD_RET_FAILURE;
+ }
+
+ ret = regulator_set_value(dev, value);
+ if (ret) {
+ printf("Regulator: %s - can't set the Voltage!\n",
+ uc_pdata->name);
+ return failure(ret);
+ }
+
+ return CMD_RET_SUCCESS;
+}
+
+static int do_current(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ struct udevice *dev;
+ struct dm_regulator_uclass_platdata *uc_pdata;
+ int current;
+ int ret;
+
+ ret = curr_dev_and_platdata(&dev, &uc_pdata, argc == 1);
+ if (ret)
+ return ret;
+
+ if (argc == 1) {
+ ret = regulator_get_current(dev);
+ if (ret < 0) {
+ printf("Regulator: %s - can't get the Current!\n",
+ uc_pdata->name);
+ return failure(ret);
+ }
+
+ printf("%d uA\n", ret);
+ return CMD_RET_SUCCESS;
+ }
+
+ current = simple_strtoul(argv[1], NULL, 0);
+ if (current < uc_pdata->min_uA || current > uc_pdata->max_uA) {
+ printf("Current exceeds regulator constraint limits\n");
+ return CMD_RET_FAILURE;
+ }
+
+ ret = regulator_set_current(dev, current);
+ if (ret) {
+ printf("Regulator: %s - can't set the Current!\n",
+ uc_pdata->name);
+ return failure(ret);
+ }
+
+ return CMD_RET_SUCCESS;
+}
+
+static int do_mode(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ struct udevice *dev;
+ struct dm_regulator_uclass_platdata *uc_pdata;
+ int mode;
+ int ret;
+
+ ret = curr_dev_and_platdata(&dev, &uc_pdata, false);
+ if (ret)
+ return ret;
+
+ if (argc == 1) {
+ ret = regulator_get_mode(dev);
+ if (ret < 0) {
+ printf("Regulator: %s - can't get the operation mode!\n",
+ uc_pdata->name);
+ return failure(ret);
+ }
+
+ printf("mode id: %d\n", ret);
+ return CMD_RET_SUCCESS;
+ }
+
+ mode = simple_strtoul(argv[1], NULL, 0);
+
+ ret = regulator_set_mode(dev, mode);
+ if (ret) {
+ printf("Regulator: %s - can't set the operation mode!\n",
+ uc_pdata->name);
+ return failure(ret);
+ }
+
+ return CMD_RET_SUCCESS;
+}
+
+static int do_enable(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ struct udevice *dev;
+ struct dm_regulator_uclass_platdata *uc_pdata;
+ int ret;
+
+ ret = curr_dev_and_platdata(&dev, &uc_pdata, true);
+ if (ret)
+ return ret;
+
+ ret = regulator_set_enable(dev, true);
+ if (ret) {
+ printf("Regulator: %s - can't enable!\n", uc_pdata->name);
+ return failure(ret);
+ }
+
+ return CMD_RET_SUCCESS;
+}
+
+static int do_disable(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ struct udevice *dev;
+ struct dm_regulator_uclass_platdata *uc_pdata;
+ int ret;
+
+ ret = curr_dev_and_platdata(&dev, &uc_pdata, true);
+ if (ret)
+ return ret;
+
+ ret = regulator_set_enable(dev, false);
+ if (ret) {
+ printf("Regulator: %s - can't disable!\n", uc_pdata->name);
+ return failure(ret);
+ }
+
+ return CMD_RET_SUCCESS;
+}
+
+static cmd_tbl_t subcmd[] = {
+ U_BOOT_CMD_MKENT(dev, 2, 1, do_dev, "", ""),
+ U_BOOT_CMD_MKENT(list, 1, 1, do_list, "", ""),
+ U_BOOT_CMD_MKENT(info, 2, 1, do_info, "", ""),
+ U_BOOT_CMD_MKENT(status, 2, 1, do_status, "", ""),
+ U_BOOT_CMD_MKENT(value, 3, 1, do_value, "", ""),
+ U_BOOT_CMD_MKENT(current, 3, 1, do_current, "", ""),
+ U_BOOT_CMD_MKENT(mode, 2, 1, do_mode, "", ""),
+ U_BOOT_CMD_MKENT(enable, 1, 1, do_enable, "", ""),
+ U_BOOT_CMD_MKENT(disable, 1, 1, do_disable, "", ""),
+};
+
+static int do_regulator(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
+{
+ cmd_tbl_t *cmd;
+
+ argc--;
+ argv++;
+
+ cmd = find_cmd_tbl(argv[0], subcmd, ARRAY_SIZE(subcmd));
+ if (cmd == NULL || argc > cmd->maxargs)
+ return CMD_RET_USAGE;
+
+ return cmd->cmd(cmdtp, flag, argc, argv);
+}
+
+U_BOOT_CMD(regulator, CONFIG_SYS_MAXARGS, 1, do_regulator,
+ "uclass operations",
+ "list - list UCLASS regulator devices\n"
+ "regulator dev [regulator-name] - show/[set] operating regulator device\n"
+ "regulator info - print constraints info\n"
+ "regulator status [-a] - print operating status [for all]\n"
+ "regulator value [val] [-f] - print/[set] voltage value [uV] (force)\n"
+ "regulator current [val] - print/[set] current value [uA]\n"
+ "regulator mode [id] - print/[set] operating mode id\n"
+ "regulator enable - enable the regulator output\n"
+ "regulator disable - disable the regulator output\n"
+);