From patchwork Wed Mar 25 13:46:24 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Niel Fourie X-Patchwork-Id: 244236 List-Id: U-Boot discussion From: lusus at denx.de (Niel Fourie) Date: Wed, 25 Mar 2020 14:46:24 +0100 Subject: [PATCH 1/1] cmd: blkls: Add blkls command Message-ID: <20200325134624.2014092-1-lusus@denx.de> 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 --- cmd/Kconfig | 8 ++++ cmd/Makefile | 1 + cmd/lsblk.c | 83 +++++++++++++++++++++++++++++++++++++ test/py/tests/test_lsblk.py | 23 ++++++++++ 4 files changed, 115 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..ee6ff467ae 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -1047,6 +1047,14 @@ config CMD_LOADS help Load an S-Record file over serial line +config CMD_LSBLK + depends on HAVE_BLOCK_DEVICE + bool "lsblk - list block drivers and devices" + default n + 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..575a1c9277 --- /dev/null +++ b/cmd/lsblk.c @@ -0,0 +1,83 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) Copyright 2020 + * Niel Fourie, DENX Software Engineering, lusus at denx.de. + */ + +#include +#include +#include +#include + +#if CONFIG_IS_ENABLED(HAVE_BLOCK_DEVICE) +#if CONFIG_IS_ENABLED(BLK) +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 i; + + puts("Block Driver Devices\n"); + puts("-----------------------------\n"); + uclass_get(UCLASS_BLK, &uc); + 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(": "); + puts("\n"); + } + return CMD_RET_SUCCESS; +} +#else +static int do_lsblk(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + struct blk_driver *drv = ll_entry_start(struct blk_driver, blk_driver); + const int n_ents = ll_entry_count(struct blk_driver, blk_driver); + struct blk_driver *entry; + struct blk_desc *desc; + int i, j; + + puts("Block Driver Devices\n"); + puts("-----------------------------\n"); + for (entry = drv; entry != drv + n_ents; entry++) { + i = 0; + printf("%-20.20s", entry->if_typename); + for (j = 0; j < entry->max_devs; j++) { + desc = &entry->desc[j]; + if (!entry->get_dev) + continue; + if (entry->get_dev(j, &desc)) + continue; + if (desc->type == DEV_TYPE_UNKNOWN) + continue; + printf("%c %s %u", i ? ',' : ':', entry->if_typename, + desc->devnum); + i++; + } + if (!i) + puts(": "); + puts("\n"); + } + return CMD_RET_SUCCESS; +} +#endif /* CONFIG_IS_ENABLED(BLK) */ +U_BOOT_CMD(lsblk, 1, 0, do_lsblk, "list block drivers and devices", + "- display list of block device drivers and attached block devices" +); +#endif /* CONFIG_IS_ENABLED(HAVE_BLOCK_DEVICE) */ diff --git a/test/py/tests/test_lsblk.py b/test/py/tests/test_lsblk.py new file mode 100644 index 0000000000..f4b36b581e --- /dev/null +++ b/test/py/tests/test_lsblk.py @@ -0,0 +1,23 @@ +# SPDX-License-Identifier: GPL-2.0 +# Copyright (C) 2020 +# Niel Fourie, DENX Software Engineering, lusus at denx.de + +import pytest + + at pytest.mark.buildconfigspec('have_block_device') + at pytest.mark.buildconfigspec('blk') + at 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 + + at pytest.mark.buildconfigspec('have_block_device') + at pytest.mark.notbuildconfigspec('blk') + at pytest.mark.buildconfigspec('cmd_lsblk') +def test_lsblk_legacy(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 "host" in output