Commit 9d6a0cee authored by Najumon B.A's avatar Najumon B.A Committed by Carles Cufi
Browse files

lib: acpi: add resource enumeration shell command 



add resource enumeration and acpi method shell commands such as
retrieve mmio and interrupt resources.

Signed-off-by: default avatarNajumon B.A <najumon.ba@intel.com>
parent 34a2fbfb

lib/acpi/acpi_shell.c

+109 −26
Original line number Diff line number Diff line
@@ -103,9 +103,17 @@ static void dump_dev_res(const struct shell *sh, ACPI_RESOURCE *res_lst) 
		case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:

			shell_print(sh, "ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64");

			break;

		case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:

		case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: {

			ACPI_RESOURCE_EXTENDED_IRQ *ext_irq_res = &res->Data.ExtendedIrq;



			shell_print(sh, "ACPI_RESOURCE_TYPE_EXTENDED_IRQ");

			shell_print(sh, "\tTriggering: %x", ext_irq_res->Triggering);

			shell_print(sh, "\tPolarity: %x", ext_irq_res->Polarity);

			shell_print(sh, "\tShareable: %s", ext_irq_res->Shareable ? "YES":"NO");

			shell_print(sh, "\tInterruptCount: %d", ext_irq_res->InterruptCount);

			shell_print(sh, "\tInterrupts[0]: %d", ext_irq_res->Interrupts[0]);

			break;

		}

		case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:

			shell_print(sh, "ACPI_RESOURCE_TYPE_GENERIC_REGISTER");

			break;
@@ -148,7 +156,7 @@ static int dump_dev_crs(const struct shell *sh, size_t argc, char **argv) 
	ACPI_RESOURCE *res_lst;



	if (argc < 2) {

		shell_error(sh, "invalid arugment");

		shell_error(sh, "invalid argument");

		return -EINVAL;

	}
@@ -171,7 +179,7 @@ static int dump_dev_prs(const struct shell *sh, size_t argc, char **argv) 
	ACPI_RESOURCE *res_lst;



	if (argc < 2) {

		shell_error(sh, "invalid arugment");

		shell_error(sh, "invalid argument");

		return -EINVAL;

	}
@@ -189,28 +197,26 @@ static int dump_dev_prs(const struct shell *sh, size_t argc, char **argv) 
static int dump_prt(const struct shell *sh, size_t argc, char **argv)

{

	IF_ENABLED(CONFIG_PCIE_PRT, ({

		static ACPI_PCI_ROUTING_TABLE irq_prt_table[CONFIG_ACPI_MAX_PRT_ENTRY];

		int status, cnt;

		ACPI_PCI_ROUTING_TABLE *prt;

		int irq, bus, dev_num, func;

		pcie_bdf_t bdf;



		if (argc < 2) {

			shell_error(sh, "invalid arugment");

		if (argc < 4) {

			shell_error(sh, "invalid arguments [Eg: acpi prt <bus> <dev> <func>]");

			return -EINVAL;

		}



		status = acpi_get_irq_routing_table(argv[1],

						    irq_prt_table, ARRAY_SIZE(irq_prt_table));

		if (status) {

			return status;

		}



		prt = irq_prt_table;

		for (cnt = 0; prt->Length; cnt++) {

			shell_print(sh, "[%02X] PCI IRQ Routing Table Package", cnt);

			shell_print(sh, "\tDevNum: %lld Pin: %d IRQ: %d",

				    (prt->Address >> 16) & 0xFFFF, prt->Pin, prt->SourceIndex);



			prt = ACPI_ADD_PTR(ACPI_PCI_ROUTING_TABLE, prt, prt->Length);

		bus = atoi(argv[1]);

		dev_num = atoi(argv[2]);

		func = atoi(argv[3]);



		bdf = PCIE_BDF(bus, dev_num, func);

		irq = acpi_legacy_irq_get(bdf);

		if (irq != UINT_MAX) {

			shell_print(sh, "PCI Legacy IRQ for bus %d dev %d func %d is: %d",

				 bus, dev_num, func, irq);

		} else {

			shell_print(sh, "PCI Legacy IRQ for bus %d dev %d func %d Not found",

				 bus, dev_num, func);

		}

	})); /* IF_ENABLED(CONFIG_PCIE_PRT) */
@@ -220,19 +226,93 @@ static int dump_prt(const struct shell *sh, size_t argc, char **argv) 
static int enum_dev(const struct shell *sh, size_t argc, char **argv)

{

	struct acpi_dev *dev;

	ACPI_RESOURCE *res_lst;



	if (argc < 2) {

	if (argc < 3) {

		shell_error(sh, "Invalid arguments [Eg: acpi enum PNP0103 0]");

		return -EINVAL;

	}



	dev = acpi_device_get(argv[1], 0);

	dev = acpi_device_get(argv[1], argv[2]);

	if (!dev || !dev->res_lst) {

		shell_error(sh, "acpi get device failed for HID: %s", argv[1]);

		return -EIO;

	}



	shell_print(sh, "Name: %s", dev->path ? dev->path : "None");

	dump_dev_res(sh, dev->res_lst);



	if (dev->path) {

		if (!acpi_current_resource_get(dev->path, &res_lst)) {

			dump_dev_res(sh, res_lst);

			acpi_current_resource_free(res_lst);

		}

	}



	return 0;

}



static int enum_all_dev(const struct shell *sh, size_t argc, char **argv)

{

	struct acpi_dev *dev;



	for (int i = 0; i < CONFIG_ACPI_DEV_MAX; i++) {

		dev = acpi_device_by_index_get(i);

		if (!dev) {

			shell_print(sh, "No more ACPI device found!");

			break;

		}



		if (!dev->dev_info) {

			continue;

		}



		shell_print(sh, "%d) Name: %s, HID: %s", i, dev->path ? dev->path : "None",

			    dev->dev_info->HardwareId.String ? dev->dev_info->HardwareId.String

							     : "None");

	}



	return 0;

}



static int get_acpi_dev_resource(const struct shell *sh, size_t argc, char **argv)

{

	struct acpi_dev *dev;

	struct acpi_irq_resource irq_res;

	struct acpi_mmio_resource mmio_res;



	if (argc < 3) {

		return -EINVAL;

	}



	dev = acpi_device_get(argv[1], argv[2]);

	if (!dev) {

		shell_error(sh, "acpi get device failed for HID: %s", argv[1]);

		return -EIO;

	}



	if (dev->path) {

		shell_print(sh, "Device Path: %s", dev->path);



		if (!acpi_device_mmio_get(dev, &mmio_res)) {



			shell_print(sh, "Device MMIO resources");

			for (int i = 0; i < ACPI_RESOURCE_COUNT_GET(&mmio_res); i++) {

				shell_print(sh, "\tType: %x, Address: %p, Size: %d",

					ACPI_MULTI_RESOURCE_TYPE_GET(&mmio_res, i),

					(void *)ACPI_MULTI_MMIO_GET(&mmio_res, i),

						ACPI_MULTI_RESOURCE_SIZE_GET(&mmio_res, i));

			}

		}



		if (!acpi_device_irq_get(dev, &irq_res)) {



			shell_print(sh, "Device IRQ resources");

			for (int i = 0; i < irq_res.irq_vector_max; i++) {

				shell_print(sh, "\tIRQ Num: %x, Flags: %x", irq_res.irqs[i],

					    irq_res.flags);

			}

		}

	}



	return 0;

}
@@ -274,8 +354,11 @@ SHELL_STATIC_SUBCMD_SET_CREATE( 
	SHELL_CMD(enum, NULL,

		  "enumerate device using hid (for enum HPET timer device,eg:acpi enum PNP0103)",

		  enum_dev),

	SHELL_CMD(rd_table, NULL,

		  "read acpi table (for read mad table, eg:acpi read_table APIC)",

	SHELL_CMD(enum_all, NULL, "enumerate all device in acpi name space (eg:acpi enum_all)",

		  enum_all_dev),

	SHELL_CMD(dev_res, NULL, "retrieve device resource (eg: acpi dev_res PNP0501 2)",

		  get_acpi_dev_resource),

	SHELL_CMD(rd_table, NULL, "read ACPI table (eg: acpi read_table APIC)",

		  read_table),

	SHELL_SUBCMD_SET_END /* Array terminated. */

);

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