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lib: acpi: add resource enumeration shell command
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add resource enumeration and acpi method shell commands such as
retrieve mmio, interrupt and gpio resources.

Signed-off-by: Najumon B.A <[email protected]>
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@najumon1980
najumon1980 committed Oct 4, 2023
1 parent d52d385 commit c9ac74b
Showing 1 changed file with 142 additions and 6 deletions.
148 changes: 142 additions & 6 deletions lib/acpi/acpi_shell.c
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Original file line number Diff line number Diff line change
Expand Up @@ -106,7 +106,14 @@ static void dump_dev_res(const struct shell *sh, ACPI_RESOURCE *res_lst)
shell_print(sh, "ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64\n\n");
break;
case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
ACPI_RESOURCE_EXTENDED_IRQ * ext_irq_res = &res->Data.ExtendedIrq;

shell_print(sh, "ACPI_RESOURCE_TYPE_EXTENDED_IRQ\n\n");
shell_print(sh, "Triggering:%x, Polarity:%x, Shareable:%x,",
ext_irq_res->Triggering, ext_irq_res->Polarity,
ext_irq_res->Shareable);
shell_print(sh, "InterruptCount:%d, Interrupts[0]:%x\n",
ext_irq_res->InterruptCount, ext_irq_res->Interrupts[0]);
break;
case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
shell_print(sh, "ACPI_RESOURCE_TYPE_GENERIC_REGISTER\n\n");
Expand Down Expand Up @@ -137,6 +144,7 @@ static void dump_dev_res(const struct shell *sh, ACPI_RESOURCE *res_lst)
shell_print(sh, "ACPI_RESOURCE_TYPE_PIN_GROUP_CONFIG\n\n");
break;
default:
shell_print(sh, "ACPI_RESOURCE_TYPE_ UNKNOWN\n\n");
}

res = ACPI_NEXT_RESOURCE(res);
Expand Down Expand Up @@ -220,18 +228,101 @@ 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 Arugements [Eg: acpi enum PNP0103 0]\n");
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\n", argv[1]);
return -EIO;
}
shell_print(sh, "\nName:%s\n", dev->path ? dev->path : "Non");
dump_dev_res(sh, dev->res_lst);
shell_print(sh, "\nName:%s, Address:%llx\n", dev->path ? dev->path : "Non",
dev->dev_info->Address);

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 < 1000; i++) {
dev = acpi_device_by_index_get(i);

if (!dev) {
shell_print(sh, "No more ACPI device found!\n");
break;
}

shell_print(sh, "%d) Name:%s, HID:%s\n", i, dev->path ? dev->path : "Non",
dev->dev_info->HardwareId.String ? dev->dev_info->HardwareId.String
: "");

if (dev->dev_info->ClassCode.String) {
shell_print(sh, "CLS:%s\n", dev->dev_info->ClassCode.String);
}

for (int j = 0; j < dev->dev_info->CompatibleIdList.Count; j++) {
shell_print(sh, "CID[%d]:%s\n", j,
dev->dev_info->CompatibleIdList.Ids[j].String
? dev->dev_info->CompatibleIdList.Ids[j].String
: "");
}
}

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\n", argv[1]);
return -EIO;
}

if (dev->path) {
shell_print(sh, "\nName:%s\n", dev->path);

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

shell_print(sh, "**** IRQ resources ****\n");
for (int i = 0; i < irq_res.irq_vector_max; i++) {
shell_print(sh, "Irq Num: %x, Flags:%x\n", irq_res.irqs[i],
irq_res.flags);
}
}

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

shell_print(sh, "**** MMIO resources ****\n");
for (int i = 0; i < ACPI_RESOURCE_COUNT_GET(&mmio_res); i++) {
shell_print(sh, "Type: %x, Address:%p, Size:%d\n",
ACPI_MULTI_RESOURCE_TYPE_GET(&mmio_res, i),
(void *)ACPI_MULTI_MMIO_GET(&mmio_res, i),
ACPI_MULTI_RESOURCE_SIZE_GET(&mmio_res, i));
}
}
}

return 0;
}
Expand Down Expand Up @@ -259,6 +350,42 @@ static int read_table(const struct shell *sh, size_t argc, char **argv)
return 0;
}

static int invoke_method(const struct shell *sh, size_t argc, char **argv)
{
int status;
ACPI_OBJECT args[2];
ACPI_OBJECT_LIST arg_list;
ACPI_OBJECT acpi_obj;

if (argc < 4) {
return -EINVAL;
}

arg_list.Count = 2;
arg_list.Pointer = args;

args[0].Type = ACPI_TYPE_INTEGER;
args[0].Integer.Value = atoi(argv[2]);

args[1].Type = ACPI_TYPE_INTEGER;
args[1].Integer.Value = atoi(argv[3]);

shell_print(sh, "ACPI Invoke method: %s %lld %lld\n", argv[1], args[0].Integer.Value,
args[1].Integer.Value);

status = acpi_invoke_method(argv[1], &arg_list, &acpi_obj);
if (status) {
shell_error(sh, "ACPI get table failed: %d\n", status);
return status;
}
if (acpi_obj.Type == ACPI_TYPE_INTEGER) {
shell_print(sh, "Return info: %lld\n", acpi_obj.Integer.Value);
} else {
shell_print(sh, "Return info type: %d\n", acpi_obj.Type);
}
return 0;
}

SHELL_STATIC_SUBCMD_SET_CREATE(
sub_acpi,
SHELL_CMD(crs, NULL,
Expand All @@ -272,9 +399,18 @@ 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_CMD(
method, NULL,
"invoke ACPI method (eg: acpi method \\_SB.GINF 2 6)",
invoke_method),
SHELL_SUBCMD_SET_END /* Array terminated. */
);

Expand Down

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