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-rw-r--r--cmd/pmic.c210
1 files changed, 210 insertions, 0 deletions
diff --git a/cmd/pmic.c b/cmd/pmic.c
new file mode 100644
index 0000000..970767c
--- /dev/null
+++ b/cmd/pmic.c
@@ -0,0 +1,210 @@
+/*
+ * 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/pmic.h>
+
+#define LIMIT_DEV 32
+#define LIMIT_PARENT 20
+
+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[])
+{
+ char *name;
+ int ret = -ENODEV;
+
+ switch (argc) {
+ case 2:
+ name = argv[1];
+ ret = pmic_get(name, &currdev);
+ if (ret) {
+ printf("Can't get PMIC: %s!\n", name);
+ return failure(ret);
+ }
+ case 1:
+ if (!currdev) {
+ printf("PMIC device is not set!\n\n");
+ return CMD_RET_USAGE;
+ }
+
+ printf("dev: %d @ %s\n", currdev->seq, currdev->name);
+ }
+
+ return CMD_RET_SUCCESS;
+}
+
+static int do_list(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ struct udevice *dev;
+ int ret;
+
+ printf("| %-*.*s| %-*.*s| %s @ %s\n",
+ LIMIT_DEV, LIMIT_DEV, "Name",
+ LIMIT_PARENT, LIMIT_PARENT, "Parent name",
+ "Parent uclass", "seq");
+
+ for (ret = uclass_first_device(UCLASS_PMIC, &dev); dev;
+ ret = uclass_next_device(&dev)) {
+ if (ret)
+ continue;
+
+ printf("| %-*.*s| %-*.*s| %s @ %d\n",
+ LIMIT_DEV, LIMIT_DEV, dev->name,
+ LIMIT_PARENT, LIMIT_PARENT, dev->parent->name,
+ dev_get_uclass_name(dev->parent), dev->parent->seq);
+ }
+
+ if (ret)
+ return CMD_RET_FAILURE;
+
+ return CMD_RET_SUCCESS;
+}
+
+static int do_dump(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ struct udevice *dev;
+ uint8_t value;
+ uint reg;
+ int ret;
+
+ if (!currdev) {
+ printf("First, set the PMIC device!\n");
+ return CMD_RET_USAGE;
+ }
+
+ dev = currdev;
+
+ printf("Dump pmic: %s registers\n", dev->name);
+
+ for (reg = 0; reg < pmic_reg_count(dev); reg++) {
+ ret = pmic_read(dev, reg, &value, 1);
+ if (ret) {
+ printf("Can't read register: %d\n", reg);
+ return failure(ret);
+ }
+
+ if (!(reg % 16))
+ printf("\n0x%02x: ", reg);
+
+ printf("%2.2x ", value);
+ }
+ printf("\n");
+
+ return CMD_RET_SUCCESS;
+}
+
+static int do_read(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ struct udevice *dev;
+ int regs, ret;
+ uint8_t value;
+ uint reg;
+
+ if (!currdev) {
+ printf("First, set the PMIC device!\n");
+ return CMD_RET_USAGE;
+ }
+
+ dev = currdev;
+
+ if (argc != 2)
+ return CMD_RET_USAGE;
+
+ reg = simple_strtoul(argv[1], NULL, 0);
+ regs = pmic_reg_count(dev);
+ if (reg > regs) {
+ printf("PMIC max reg: %d\n", regs);
+ return failure(-EFAULT);
+ }
+
+ ret = pmic_read(dev, reg, &value, 1);
+ if (ret) {
+ printf("Can't read PMIC register: %d!\n", reg);
+ return failure(ret);
+ }
+
+ printf("0x%02x: 0x%2.2x\n", reg, value);
+
+ return CMD_RET_SUCCESS;
+}
+
+static int do_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ struct udevice *dev;
+ int regs, ret;
+ uint8_t value;
+ uint reg;
+
+ if (!currdev) {
+ printf("First, set the PMIC device!\n");
+ return CMD_RET_USAGE;
+ }
+
+ dev = currdev;
+
+ if (argc != 3)
+ return CMD_RET_USAGE;
+
+ reg = simple_strtoul(argv[1], NULL, 0);
+ regs = pmic_reg_count(dev);
+ if (reg > regs) {
+ printf("PMIC max reg: %d\n", regs);
+ return failure(-EFAULT);
+ }
+
+ value = simple_strtoul(argv[2], NULL, 0);
+
+ ret = pmic_write(dev, reg, &value, 1);
+ if (ret) {
+ printf("Can't write PMIC register: %d!\n", reg);
+ 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(dump, 1, 1, do_dump, "", ""),
+ U_BOOT_CMD_MKENT(read, 2, 1, do_read, "", ""),
+ U_BOOT_CMD_MKENT(write, 3, 1, do_write, "", ""),
+};
+
+static int do_pmic(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(pmic, CONFIG_SYS_MAXARGS, 1, do_pmic,
+ " operations",
+ "list - list pmic devices\n"
+ "pmic dev [name] - show or [set] operating PMIC device\n"
+ "pmic dump - dump registers\n"
+ "pmic read address - read byte of register at address\n"
+ "pmic write address - write byte to register at address\n"
+);