147 lines
3.3 KiB
C
147 lines
3.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2018, STMicroelectronics - All Rights Reserved
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*/
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#include <common.h>
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#include <command.h>
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#include <dm.h>
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#include <errno.h>
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#include <dm/pinctrl.h>
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#include <dm/uclass-internal.h>
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#define LIMIT_DEVNAME 30
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static struct udevice *currdev;
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static int do_dev(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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const char *name;
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int ret;
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switch (argc) {
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case 2:
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name = argv[1];
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ret = uclass_get_device_by_name(UCLASS_PINCTRL, name, &currdev);
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if (ret) {
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printf("Can't get the pin-controller: %s!\n", name);
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return CMD_RET_FAILURE;
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}
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case 1:
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if (!currdev) {
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printf("Pin-controller device is not set!\n");
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return CMD_RET_USAGE;
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}
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printf("dev: %s\n", currdev->name);
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}
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return CMD_RET_SUCCESS;
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}
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static int show_pinmux(struct udevice *dev)
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{
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char pin_name[PINNAME_SIZE];
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char pin_mux[PINMUX_SIZE];
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int pins_count;
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int i;
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int ret;
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pins_count = pinctrl_get_pins_count(dev);
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if (pins_count == -ENOSYS) {
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printf("Ops get_pins_count not supported\n");
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return pins_count;
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}
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for (i = 0; i < pins_count; i++) {
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ret = pinctrl_get_pin_name(dev, i, pin_name, PINNAME_SIZE);
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if (ret == -ENOSYS) {
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printf("Ops get_pin_name not supported\n");
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return ret;
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}
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ret = pinctrl_get_pin_muxing(dev, i, pin_mux, PINMUX_SIZE);
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if (ret) {
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printf("Ops get_pin_muxing error (%d)\n", ret);
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return ret;
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}
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printf("%-*s: %-*s\n", PINNAME_SIZE, pin_name,
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PINMUX_SIZE, pin_mux);
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}
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return 0;
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}
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static int do_status(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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struct udevice *dev;
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int ret = CMD_RET_USAGE;
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if (currdev && (argc < 2 || strcmp(argv[1], "-a")))
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return show_pinmux(currdev);
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if (argc < 2 || strcmp(argv[1], "-a"))
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return ret;
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uclass_foreach_dev_probe(UCLASS_PINCTRL, dev) {
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/* insert a separator between each pin-controller display */
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printf("--------------------------\n");
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printf("%s:\n", dev->name);
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ret = show_pinmux(dev);
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if (ret < 0)
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printf("Can't display pin muxing for %s\n",
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dev->name);
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}
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return ret;
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}
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static int do_list(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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struct udevice *dev;
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printf("| %-*.*s| %-*.*s| %s\n",
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LIMIT_DEVNAME, LIMIT_DEVNAME, "Device",
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LIMIT_DEVNAME, LIMIT_DEVNAME, "Driver",
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"Parent");
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uclass_foreach_dev_probe(UCLASS_PINCTRL, 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_DEVNAME, LIMIT_DEVNAME, dev->driver->name,
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dev->parent->name);
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}
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return CMD_RET_SUCCESS;
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}
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static cmd_tbl_t pinmux_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(status, 2, 1, do_status, "", ""),
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};
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static int do_pinmux(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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cmd_tbl_t *cmd;
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argc--;
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argv++;
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cmd = find_cmd_tbl(argv[0], pinmux_subcmd, ARRAY_SIZE(pinmux_subcmd));
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if (!cmd || 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(pinmux, CONFIG_SYS_MAXARGS, 1, do_pinmux,
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"show pin-controller muxing",
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"list - list UCLASS_PINCTRL devices\n"
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"pinmux dev [pincontroller-name] - select pin-controller device\n"
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"pinmux status [-a] - print pin-controller muxing [for all]\n"
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)
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