Add a command to print a list of available block device drivers,
and for each, the list of known block devices.
Signed-off-by: Niel Fourie <lu...@denx.de>
Cc: Simon Glass <s...@chromium.org>
Cc: Stefan Roese <s...@denx.de>
Reviewed-by: Simon Glass <s...@chromium.org>
Reviewed-by: Stefan Roese <s...@denx.de>
---
Changes in v2:
- Removed legacy block device variant of blkls and its test.
- Handle return value of uclass_get().
- Removed unnecessary ifdefs, fixed Kconfig depends.
Changes is v3:
- Removed redundant "default n" in Kconfig.
- Corrected included headers, fixed formatting.
- Corrected license of the test.
cmd/Kconfig | 7 +++++
cmd/Makefile | 1 +
cmd/lsblk.c | 51 +++++++++++++++++++++++++++++++++++++
test/py/tests/test_lsblk.py | 13 ++++++++++
4 files changed, 72 insertions(+)
create mode 100644 cmd/lsblk.c
create mode 100644 test/py/tests/test_lsblk.py
diff --git a/cmd/Kconfig b/cmd/Kconfig
index 6403bc45a5..52c14d5420 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -1047,6 +1047,13 @@ config CMD_LOADS
help
Load an S-Record file over serial line
+config CMD_LSBLK
+ depends on BLK
+ bool "lsblk - list block drivers and devices"
+ help
+ Print list of available block device drivers, and for each, the list
+ of known block devices.
+
config CMD_MMC
bool "mmc"
help
diff --git a/cmd/Makefile b/cmd/Makefile
index f1dd513a4b..6f80974a55 100644
--- a/cmd/Makefile
+++ b/cmd/Makefile
@@ -83,6 +83,7 @@ obj-$(CONFIG_CMD_LED) += led.o
obj-$(CONFIG_CMD_LICENSE) += license.o
obj-y += load.o
obj-$(CONFIG_CMD_LOG) += log.o
+obj-$(CONFIG_CMD_LSBLK) += lsblk.o
obj-$(CONFIG_ID_EEPROM) += mac.o
obj-$(CONFIG_CMD_MD5SUM) += md5sum.o
obj-$(CONFIG_CMD_MEMORY) += mem.o
diff --git a/cmd/lsblk.c b/cmd/lsblk.c
new file mode 100644
index 0000000000..b3e8394203
--- /dev/null
+++ b/cmd/lsblk.c
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2020
+ * Niel Fourie, DENX Software Engineering, lu...@denx.de.
+ */
+
+#include <common.h>
+#include <dm.h>
+
+static int do_lsblk(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ struct driver *d = ll_entry_start(struct driver, driver);
+ const int n_ents = ll_entry_count(struct driver, driver);
+ struct driver *entry;
+ struct udevice *udev;
+ struct uclass *uc;
+ struct blk_desc *desc;
+ int ret, i;
+
+ ret = uclass_get(UCLASS_BLK, &uc);
+ if (ret) {
+ puts("Could not get BLK uclass.\n");
+ return CMD_RET_FAILURE;
+ }
+ puts("Block Driver Devices\n");
+ puts("-----------------------------\n");
+ for (entry = d; entry < d + n_ents; entry++) {
+ if (entry->id != UCLASS_BLK)
+ continue;
+ i = 0;
+ printf("%-20.20s", entry->name);
+ uclass_foreach_dev(udev, uc) {
+ if (udev->driver != entry)
+ continue;
+ desc = dev_get_uclass_platdata(udev);
+ printf("%c %s %u", i ? ',' : ':',
+ blk_get_if_type_name(desc->if_type),
+ desc->devnum);
+ i++;
+ }
+ if (!i)
+ puts(": <none>");
+ puts("\n");
+ }
+
+ return CMD_RET_SUCCESS;
+}
+
+U_BOOT_CMD(lsblk, 1, 0, do_lsblk, "list block drivers and devices",
+ "- display list of block device drivers and attached block devices"
+);
diff --git a/test/py/tests/test_lsblk.py b/test/py/tests/test_lsblk.py
new file mode 100644
index 0000000000..40ffe01263
--- /dev/null
+++ b/test/py/tests/test_lsblk.py
@@ -0,0 +1,13 @@
+# SPDX-License-Identifier: GPL-2.0+
+# Copyright (C) 2020
+# Niel Fourie, DENX Software Engineering, lu...@denx.de
+
+import pytest
+
+@pytest.mark.buildconfigspec('blk')
+@pytest.mark.buildconfigspec('cmd_lsblk')
+def test_lsblk(u_boot_console):
+ """Test that `lsblk` prints a result which includes `host`."""
+ output = u_boot_console.run_command('lsblk')
+ assert "Block Driver" in output
+ assert "sandbox_host_blk" in output
--
2.25.1
