GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

2026-09-06 03:52:57 +08:00
commit b1928b41c0
21813 changed files with 4413081 additions and 0 deletions
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+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2018 BayLibre, SAS
+ * Author: Neil Armstrong <narmstrong@baylibre.com>
+ */
+#include <common.h>
+#include <command.h>
+#include <dm.h>
+#include <adc.h>
+
+static int do_adc_list(cmd_tbl_t *cmdtp, int flag, int argc,
+		       char *const argv[])
+{
+	struct udevice *dev;
+	int ret;
+
+	ret = uclass_first_device_err(UCLASS_ADC, &dev);
+	if (ret) {
+		printf("No available ADC device\n");
+		return CMD_RET_FAILURE;
+	}
+
+	do {
+		printf("- %s\n", dev->name);
+
+		ret = uclass_next_device(&dev);
+		if (ret)
+			return CMD_RET_FAILURE;
+	} while (dev);
+
+	return CMD_RET_SUCCESS;
+}
+
+static int do_adc_info(cmd_tbl_t *cmdtp, int flag, int argc,
+		       char *const argv[])
+{
+	struct udevice *dev;
+	unsigned int data_mask, ch_mask;
+	int ret, vss, vdd;
+
+	if (argc < 2)
+		return CMD_RET_USAGE;
+
+	ret = uclass_get_device_by_name(UCLASS_ADC, argv[1], &dev);
+	if (ret) {
+		printf("Unknown ADC device %s\n", argv[1]);
+		return CMD_RET_FAILURE;
+	}
+
+	printf("ADC Device '%s' :\n", argv[1]);
+
+	ret = adc_channel_mask(dev, &ch_mask);
+	if (!ret)
+		printf("channel mask: %x\n", ch_mask);
+
+	ret = adc_data_mask(dev, &data_mask);
+	if (!ret)
+		printf("data mask: %x\n", data_mask);
+
+	ret = adc_vdd_value(dev, &vdd);
+	if (!ret)
+		printf("vdd: %duV\n", vdd);
+
+	ret = adc_vss_value(dev, &vss);
+	if (!ret)
+		printf("vss: %duV\n", vss);
+
+	return CMD_RET_SUCCESS;
+}
+
+static int do_adc_single(cmd_tbl_t *cmdtp, int flag, int argc,
+			 char *const argv[])
+{
+	struct udevice *dev;
+	unsigned int data;
+	int ret, uV;
+
+	if (argc < 3)
+		return CMD_RET_USAGE;
+
+	ret = adc_channel_single_shot(argv[1], simple_strtol(argv[2], NULL, 0),
+				      &data);
+	if (ret) {
+		printf("Error getting single shot for device %s channel %s\n",
+		       argv[1], argv[2]);
+		return CMD_RET_FAILURE;
+	}
+
+	ret = uclass_get_device_by_name(UCLASS_ADC, argv[1], &dev);
+	if (!ret && !adc_raw_to_uV(dev, data, &uV))
+		printf("%u, %d uV\n", data, uV);
+	else
+		printf("%u\n", data);
+
+	return CMD_RET_SUCCESS;
+}
+
+static int do_adc_scan(cmd_tbl_t *cmdtp, int flag, int argc,
+		       char *const argv[])
+{
+	struct adc_channel ch[ADC_MAX_CHANNEL];
+	struct udevice *dev;
+	unsigned int ch_mask;
+	int i, chan, ret, uV;
+
+	if (argc < 2)
+		return CMD_RET_USAGE;
+
+	ret = uclass_get_device_by_name(UCLASS_ADC, argv[1], &dev);
+	if (ret) {
+		pr_err("Can't get the ADC %s: %d\n", argv[1], ret);
+		return CMD_RET_FAILURE;
+	}
+
+	switch (argc) {
+	case 3:
+		ch_mask = simple_strtoul(argv[2], NULL, 0);
+		if (ch_mask)
+			break;
+	case 2:
+		ret = adc_channel_mask(dev, &ch_mask);
+		if (ret) {
+			pr_err("Can't get mask for %s: %d\n", dev->name, ret);
+			return CMD_RET_FAILURE;
+		}
+		break;
+	}
+
+	ret = adc_channels_single_shot(dev->name, ch_mask, ch);
+	if (ret) {
+		pr_err("Can't get single shot for %s (chans mask: 0x%x): %d\n",
+		       dev->name, ch_mask, ret);
+		return CMD_RET_FAILURE;
+	}
+
+	for (chan = 0, i = 0; chan < ADC_MAX_CHANNEL; chan++) {
+		if (!(ch_mask & ADC_CHANNEL(chan)))
+			continue;
+		if (!adc_raw_to_uV(dev, ch[i].data, &uV))
+			printf("[%02d]: %u, %d uV\n", ch[i].id, ch[i].data, uV);
+		else
+			printf("[%02d]: %u\n", ch[i].id, ch[i].data);
+		i++;
+	}
+
+	return CMD_RET_SUCCESS;
+}
+
+static char adc_help_text[] =
+	"list - list ADC devices\n"
+	"adc info <name> - Get ADC device info\n"
+	"adc single <name> <channel> - Get Single data of ADC device channel\n"
+	"adc scan <name> [channel mask] - Scan all [or masked] ADC channels";
+
+U_BOOT_CMD_WITH_SUBCMDS(adc, "ADC sub-system", adc_help_text,
+	U_BOOT_SUBCMD_MKENT(list, 1, 1, do_adc_list),
+	U_BOOT_SUBCMD_MKENT(info, 2, 1, do_adc_info),
+	U_BOOT_SUBCMD_MKENT(single, 3, 1, do_adc_single),
+	U_BOOT_SUBCMD_MKENT(scan, 3, 1, do_adc_scan));