projects / thirdparty / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 051ebe32 NA |
1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* | |
| 3 | * Copyright (C) 2018 BayLibre, SAS | |
| 4 | * Author: Neil Armstrong <narmstrong@baylibre.com> | |
| 5 | */ | |
| 6 | #include <common.h> | |
| 7 | #include <command.h> | |
| 8 | #include <dm.h> | |
| 9 | #include <adc.h> | |
| 10 | ||
| 11 | static int do_adc_list(cmd_tbl_t *cmdtp, int flag, int argc, | |
| 12 | char *const argv[]) | |
| 13 | { | |
| 14 | struct udevice *dev; | |
| 15 | int ret; | |
| 16 | ||
| 17 | ret = uclass_first_device_err(UCLASS_ADC, &dev); | |
| 18 | if (ret) { | |
| 19 | printf("No available ADC device\n"); | |
| 20 | return CMD_RET_FAILURE; | |
| 21 | } | |
| 22 | ||
| 23 | do { | |
| 24 | printf("- %s\n", dev->name); | |
| 25 | ||
| 26 | ret = uclass_next_device(&dev); | |
| 27 | if (ret) | |
| 28 | return CMD_RET_FAILURE; | |
| 29 | } while (dev); | |
| 30 | ||
| 31 | return CMD_RET_SUCCESS; | |
| 32 | } | |
| 33 | ||
| 34 | static int do_adc_info(cmd_tbl_t *cmdtp, int flag, int argc, | |
| 35 | char *const argv[]) | |
| 36 | { | |
| 37 | struct udevice *dev; | |
| 38 | unsigned int data_mask; | |
| 39 | int ret, vss, vdd; | |
| 40 | ||
| 41 | if (argc < 2) | |
| 42 | return CMD_RET_USAGE; | |
| 43 | ||
| 44 | ret = uclass_get_device_by_name(UCLASS_ADC, argv[1], &dev); | |
| 45 | if (ret) { | |
| 46 | printf("Unknown ADC device %s\n", argv[1]); | |
| 47 | return CMD_RET_FAILURE; | |
| 48 | } | |
| 49 | ||
| 50 | printf("ADC Device '%s' :\n", argv[1]); | |
| 51 | ||
| 52 | ret = adc_data_mask(dev, &data_mask); | |
| 53 | if (!ret) | |
| 54 | printf("data mask: %x\n", data_mask); | |
| 55 | ||
| 56 | ret = adc_vdd_value(dev, &vdd); | |
| 57 | if (!ret) | |
| 58 | printf("vdd: %duV\n", vdd); | |
| 59 | ||
| 60 | ret = adc_vss_value(dev, &vss); | |
| 61 | if (!ret) | |
| 62 | printf("vss: %duV\n", vss); | |
| 63 | ||
| 64 | return CMD_RET_SUCCESS; | |
| 65 | } | |
| 66 | ||
| 67 | static int do_adc_single(cmd_tbl_t *cmdtp, int flag, int argc, | |
| 68 | char *const argv[]) | |
| 69 | { | |
| 70 | unsigned int data; | |
| 71 | int ret; | |
| 72 | ||
| 73 | if (argc < 3) | |
| 74 | return CMD_RET_USAGE; | |
| 75 | ||
| 76 | ret = adc_channel_single_shot(argv[1], simple_strtol(argv[2], NULL, 0), | |
| 77 | &data); | |
| 78 | if (ret) { | |
| 79 | printf("Error getting single shot for device %s channel %s\n", | |
| 80 | argv[1], argv[2]); | |
| 81 | return CMD_RET_FAILURE; | |
| 82 | } | |
| 83 | ||
| 84 | printf("%u\n", data); | |
| 85 | ||
| 86 | return CMD_RET_SUCCESS; | |
| 87 | } | |
| 88 | ||
| 89 | static cmd_tbl_t cmd_adc_sub[] = { | |
| 90 | U_BOOT_CMD_MKENT(list, 1, 1, do_adc_list, "", ""), | |
| 91 | U_BOOT_CMD_MKENT(info, 2, 1, do_adc_info, "", ""), | |
| 92 | U_BOOT_CMD_MKENT(single, 3, 1, do_adc_single, "", ""), | |
| 93 | }; | |
| 94 | ||
| 95 | static int do_adc(cmd_tbl_t *cmdtp, int flag, int argc, | |
| 96 | char *const argv[]) | |
| 97 | { | |
| 98 | cmd_tbl_t *c; | |
| 99 | ||
| 100 | if (argc < 2) | |
| 101 | return CMD_RET_USAGE; | |
| 102 | ||
| 103 | /* Strip off leading 'adc' command argument */ | |
| 104 | argc--; | |
| 105 | argv++; | |
| 106 | ||
| 107 | c = find_cmd_tbl(argv[0], &cmd_adc_sub[0], ARRAY_SIZE(cmd_adc_sub)); | |
| 108 | ||
| 109 | if (c) | |
| 110 | return c->cmd(cmdtp, flag, argc, argv); | |
| 111 | else | |
| 112 | return CMD_RET_USAGE; | |
| 113 | } | |
| 114 | ||
| 115 | static char adc_help_text[] = | |
| 116 | "list - list ADC devices\n" | |
| 117 | "adc info <name> - Get ADC device info\n" | |
| 118 | "adc single <name> <channel> - Get Single data of ADC device channel"; | |
| 119 | ||
| 120 | U_BOOT_CMD(adc, 4, 1, do_adc, "ADC sub-system", adc_help_text); |