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There are a few commands that iterate uclass with uclass_first_device/uclass_next_device or the _err variant. Use the _check class iterator variant to get devices that fail to probe as well, and print the status. Signed-off-by: Michal Suchanek <msuchanek@suse.de> Reviewed-by: Simon Glass <sjg@chromium.org>
467 lines
11 KiB
C
467 lines
11 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2014-2015 Samsung Electronics
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* Przemyslaw Marczak <p.marczak@samsung.com>
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*/
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#include <common.h>
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#include <command.h>
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#include <errno.h>
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#include <dm.h>
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#include <dm/uclass-internal.h>
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#include <power/regulator.h>
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#define LIMIT_DEVNAME 20
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#define LIMIT_OFNAME 32
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#define LIMIT_INFO 18
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static struct udevice *currdev;
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static int failure(int ret)
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{
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printf("Error: %d (%s)\n", ret, errno_str(ret));
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return CMD_RET_FAILURE;
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}
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static int do_dev(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
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{
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struct dm_regulator_uclass_plat *uc_pdata;
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const char *name;
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int ret = -ENXIO;
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switch (argc) {
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case 2:
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name = argv[1];
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ret = regulator_get_by_platname(name, &currdev);
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if (ret) {
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printf("Can't get the regulator: %s!\n", name);
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return failure(ret);
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}
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case 1:
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if (!currdev) {
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printf("Regulator device is not set!\n\n");
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return CMD_RET_USAGE;
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}
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uc_pdata = dev_get_uclass_plat(currdev);
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if (!uc_pdata) {
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printf("%s: no regulator platform data!\n", currdev->name);
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return failure(ret);
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}
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printf("dev: %s @ %s\n", uc_pdata->name, currdev->name);
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}
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return CMD_RET_SUCCESS;
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}
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static int curr_dev_and_plat(struct udevice **devp,
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struct dm_regulator_uclass_plat **uc_pdata,
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bool allow_type_fixed)
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{
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*devp = NULL;
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*uc_pdata = NULL;
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if (!currdev) {
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printf("First, set the regulator device!\n");
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return CMD_RET_FAILURE;
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}
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*devp = currdev;
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*uc_pdata = dev_get_uclass_plat(*devp);
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if (!*uc_pdata) {
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pr_err("Regulator: %s - missing platform data!\n", currdev->name);
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return CMD_RET_FAILURE;
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}
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if (!allow_type_fixed && (*uc_pdata)->type == REGULATOR_TYPE_FIXED) {
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printf("Operation not allowed for fixed regulator!\n");
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return CMD_RET_FAILURE;
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}
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return CMD_RET_SUCCESS;
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}
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static int do_list(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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struct dm_regulator_uclass_plat *uc_pdata;
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struct udevice *dev;
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int ret;
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printf("| %-*.*s| %-*.*s| %s\n",
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LIMIT_DEVNAME, LIMIT_DEVNAME, "Device",
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LIMIT_OFNAME, LIMIT_OFNAME, "regulator-name",
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"Parent");
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for (ret = uclass_find_first_device(UCLASS_REGULATOR, &dev); dev;
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ret = uclass_find_next_device(&dev)) {
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if (ret)
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continue;
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uc_pdata = dev_get_uclass_plat(dev);
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printf("| %-*.*s| %-*.*s| %s\n",
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LIMIT_DEVNAME, LIMIT_DEVNAME, dev->name,
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LIMIT_OFNAME, LIMIT_OFNAME, uc_pdata->name,
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dev->parent->name);
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}
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return ret;
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}
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static int constraint(const char *name, int val, const char *val_name)
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{
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printf("%-*s", LIMIT_INFO, name);
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if (val < 0) {
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printf(" %s (err: %d)\n", errno_str(val), val);
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return val;
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}
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if (val_name)
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printf(" %d (%s)\n", val, val_name);
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else
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printf(" %d\n", val);
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return 0;
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}
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static const char *get_mode_name(struct dm_regulator_mode *mode,
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int mode_count,
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int mode_id)
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{
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while (mode_count--) {
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if (mode->id == mode_id)
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return mode->name;
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mode++;
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}
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return NULL;
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}
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static int do_info(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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struct udevice *dev;
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struct dm_regulator_uclass_plat *uc_pdata;
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struct dm_regulator_mode *modes;
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const char *parent_uc;
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int mode_count;
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int ret;
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int i;
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ret = curr_dev_and_plat(&dev, &uc_pdata, true);
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if (ret)
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return ret;
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parent_uc = dev_get_uclass_name(dev->parent);
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printf("%s\n%-*s %s\n%-*s %s\n%-*s %s\n%-*s %s\n%-*s\n",
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"Regulator info:",
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LIMIT_INFO, "* regulator-name:", uc_pdata->name,
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LIMIT_INFO, "* device name:", dev->name,
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LIMIT_INFO, "* parent name:", dev->parent->name,
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LIMIT_INFO, "* parent uclass:", parent_uc,
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LIMIT_INFO, "* constraints:");
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constraint(" - min uV:", uc_pdata->min_uV, NULL);
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constraint(" - max uV:", uc_pdata->max_uV, NULL);
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constraint(" - min uA:", uc_pdata->min_uA, NULL);
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constraint(" - max uA:", uc_pdata->max_uA, NULL);
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constraint(" - always on:", uc_pdata->always_on,
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uc_pdata->always_on ? "true" : "false");
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constraint(" - boot on:", uc_pdata->boot_on,
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uc_pdata->boot_on ? "true" : "false");
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mode_count = regulator_mode(dev, &modes);
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constraint("* op modes:", mode_count, NULL);
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for (i = 0; i < mode_count; i++, modes++)
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constraint(" - mode id:", modes->id, modes->name);
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return CMD_RET_SUCCESS;
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}
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static void do_status_detail(struct udevice *dev,
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struct dm_regulator_uclass_plat *uc_pdata)
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{
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int current, value, mode;
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const char *mode_name;
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bool enabled;
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printf("Regulator %s status:\n", uc_pdata->name);
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enabled = regulator_get_enable(dev);
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constraint(" * enable:", enabled, enabled ? "true" : "false");
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value = regulator_get_value(dev);
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constraint(" * value uV:", value, NULL);
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current = regulator_get_current(dev);
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constraint(" * current uA:", current, NULL);
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mode = regulator_get_mode(dev);
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mode_name = get_mode_name(uc_pdata->mode, uc_pdata->mode_count, mode);
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constraint(" * mode id:", mode, mode_name);
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}
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static void do_status_line(struct udevice *dev, int status)
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{
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struct dm_regulator_uclass_plat *pdata;
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int current, value, mode;
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const char *mode_name;
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bool enabled;
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pdata = dev_get_uclass_plat(dev);
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enabled = regulator_get_enable(dev);
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value = regulator_get_value(dev);
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current = regulator_get_current(dev);
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mode = regulator_get_mode(dev);
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mode_name = get_mode_name(pdata->mode, pdata->mode_count, mode);
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printf("%-20s %-10s ", pdata->name, enabled ? "enabled" : "disabled");
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if (value >= 0)
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printf("%10d ", value);
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else
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printf("%10s ", "-");
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if (current >= 0)
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printf("%10d ", current);
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else
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printf("%10s ", "-");
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if (mode >= 0)
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printf("%-10s", mode_name);
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else
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printf("%-10s", "-");
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printf(" %i", status);
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printf("\n");
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}
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static int do_status(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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struct dm_regulator_uclass_plat *uc_pdata;
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struct udevice *dev;
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int ret;
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if (currdev && (argc < 2 || strcmp(argv[1], "-a"))) {
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ret = curr_dev_and_plat(&dev, &uc_pdata, true);
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if (ret)
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return CMD_RET_FAILURE;
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do_status_detail(dev, uc_pdata);
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return 0;
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}
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/* Show all of them in a list, probing them as needed */
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printf("%-20s %-10s %10s %10s %-10s %s\n", "Name", "Enabled", "uV", "mA",
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"Mode", "Status");
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for (ret = uclass_first_device_check(UCLASS_REGULATOR, &dev); dev;
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ret = uclass_next_device_check(&dev))
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do_status_line(dev, ret);
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return CMD_RET_SUCCESS;
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}
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static int do_value(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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struct udevice *dev;
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struct dm_regulator_uclass_plat *uc_pdata;
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int value;
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int force;
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int ret;
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ret = curr_dev_and_plat(&dev, &uc_pdata, argc == 1);
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if (ret)
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return ret;
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if (argc == 1) {
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ret = regulator_get_value(dev);
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if (ret < 0) {
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printf("Regulator: %s - can't get the Voltage!\n",
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uc_pdata->name);
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return failure(ret);
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}
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printf("%d uV\n", ret);
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return CMD_RET_SUCCESS;
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}
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if (argc == 3)
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force = !strcmp("-f", argv[2]);
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else
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force = 0;
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value = simple_strtoul(argv[1], NULL, 0);
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if ((value < uc_pdata->min_uV || value > uc_pdata->max_uV) && !force) {
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printf("Value exceeds regulator constraint limits %d..%d uV\n",
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uc_pdata->min_uV, uc_pdata->max_uV);
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return CMD_RET_FAILURE;
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}
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if (!force)
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ret = regulator_set_value(dev, value);
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else
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ret = regulator_set_value_force(dev, value);
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if (ret) {
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printf("Regulator: %s - can't set the Voltage!\n",
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uc_pdata->name);
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return failure(ret);
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}
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return CMD_RET_SUCCESS;
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}
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static int do_current(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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struct udevice *dev;
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struct dm_regulator_uclass_plat *uc_pdata;
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int current;
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int ret;
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ret = curr_dev_and_plat(&dev, &uc_pdata, argc == 1);
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if (ret)
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return ret;
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if (argc == 1) {
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ret = regulator_get_current(dev);
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if (ret < 0) {
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printf("Regulator: %s - can't get the Current!\n",
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uc_pdata->name);
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return failure(ret);
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}
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printf("%d uA\n", ret);
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return CMD_RET_SUCCESS;
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}
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current = simple_strtoul(argv[1], NULL, 0);
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if (current < uc_pdata->min_uA || current > uc_pdata->max_uA) {
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printf("Current exceeds regulator constraint limits\n");
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return CMD_RET_FAILURE;
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}
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ret = regulator_set_current(dev, current);
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if (ret) {
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printf("Regulator: %s - can't set the Current!\n",
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uc_pdata->name);
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return failure(ret);
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}
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return CMD_RET_SUCCESS;
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}
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static int do_mode(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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struct udevice *dev;
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struct dm_regulator_uclass_plat *uc_pdata;
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int mode;
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int ret;
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ret = curr_dev_and_plat(&dev, &uc_pdata, false);
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if (ret)
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return ret;
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if (argc == 1) {
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ret = regulator_get_mode(dev);
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if (ret < 0) {
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printf("Regulator: %s - can't get the operation mode!\n",
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uc_pdata->name);
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return failure(ret);
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}
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printf("mode id: %d\n", ret);
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return CMD_RET_SUCCESS;
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}
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mode = simple_strtoul(argv[1], NULL, 0);
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ret = regulator_set_mode(dev, mode);
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if (ret) {
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printf("Regulator: %s - can't set the operation mode!\n",
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uc_pdata->name);
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return failure(ret);
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}
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return CMD_RET_SUCCESS;
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}
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static int do_enable(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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struct udevice *dev;
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struct dm_regulator_uclass_plat *uc_pdata;
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int ret;
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ret = curr_dev_and_plat(&dev, &uc_pdata, true);
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if (ret)
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return ret;
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ret = regulator_set_enable(dev, true);
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if (ret) {
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printf("Regulator: %s - can't enable!\n", uc_pdata->name);
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return failure(ret);
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}
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return CMD_RET_SUCCESS;
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}
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static int do_disable(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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struct udevice *dev;
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struct dm_regulator_uclass_plat *uc_pdata;
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int ret;
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ret = curr_dev_and_plat(&dev, &uc_pdata, true);
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if (ret)
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return ret;
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ret = regulator_set_enable(dev, false);
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if (ret) {
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printf("Regulator: %s - can't disable!\n", uc_pdata->name);
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return failure(ret);
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}
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return CMD_RET_SUCCESS;
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}
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static struct cmd_tbl subcmd[] = {
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U_BOOT_CMD_MKENT(dev, 2, 1, do_dev, "", ""),
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U_BOOT_CMD_MKENT(list, 1, 1, do_list, "", ""),
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U_BOOT_CMD_MKENT(info, 2, 1, do_info, "", ""),
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U_BOOT_CMD_MKENT(status, 2, 1, do_status, "", ""),
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U_BOOT_CMD_MKENT(value, 3, 1, do_value, "", ""),
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U_BOOT_CMD_MKENT(current, 3, 1, do_current, "", ""),
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U_BOOT_CMD_MKENT(mode, 2, 1, do_mode, "", ""),
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U_BOOT_CMD_MKENT(enable, 1, 1, do_enable, "", ""),
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U_BOOT_CMD_MKENT(disable, 1, 1, do_disable, "", ""),
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};
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static int do_regulator(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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struct cmd_tbl *cmd;
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argc--;
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argv++;
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cmd = find_cmd_tbl(argv[0], subcmd, ARRAY_SIZE(subcmd));
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if (cmd == NULL || argc > cmd->maxargs)
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return CMD_RET_USAGE;
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return cmd->cmd(cmdtp, flag, argc, argv);
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}
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U_BOOT_CMD(regulator, CONFIG_SYS_MAXARGS, 1, do_regulator,
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"uclass operations",
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"list - list UCLASS regulator devices\n"
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"regulator dev [regulator-name] - show/[set] operating regulator device\n"
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"regulator info - print constraints info\n"
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"regulator status [-a] - print operating status [for all]\n"
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"regulator value [val] [-f] - print/[set] voltage value [uV] (force)\n"
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"regulator current [val] - print/[set] current value [uA]\n"
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"regulator mode [id] - print/[set] operating mode id\n"
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"regulator enable - enable the regulator output\n"
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"regulator disable - disable the regulator output\n"
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);
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