acpigen.c 29 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Tests for ACPI code generation
  4. *
  5. * Copyright 2019 Google LLC
  6. * Written by Simon Glass <sjg@chromium.org>
  7. */
  8. #include <common.h>
  9. #include <dm.h>
  10. #include <irq.h>
  11. #include <malloc.h>
  12. #include <acpi/acpigen.h>
  13. #include <acpi/acpi_device.h>
  14. #include <acpi/acpi_table.h>
  15. #include <asm/gpio.h>
  16. #include <asm/unaligned.h>
  17. #include <dm/acpi.h>
  18. #include <dm/test.h>
  19. #include <dm/uclass-internal.h>
  20. #include <test/ut.h>
  21. #include "acpi.h"
  22. /* Maximum size of the ACPI context needed for most tests */
  23. #define ACPI_CONTEXT_SIZE 150
  24. #define TEST_STRING "frogmore"
  25. #define TEST_STRING2 "ranch"
  26. #define TEST_STREAM2 "\xfa\xde"
  27. #define TEST_INT8 0x7d
  28. #define TEST_INT16 0x2345
  29. #define TEST_INT32 0x12345678
  30. #define TEST_INT64 0x4567890123456
  31. int acpi_test_alloc_context_size(struct acpi_ctx **ctxp, int size)
  32. {
  33. struct acpi_ctx *ctx;
  34. *ctxp = NULL;
  35. ctx = malloc(sizeof(*ctx));
  36. if (!ctx)
  37. return -ENOMEM;
  38. ctx->base = malloc(size);
  39. if (!ctx->base) {
  40. free(ctx);
  41. return -ENOMEM;
  42. }
  43. ctx->ltop = 0;
  44. ctx->current = ctx->base;
  45. *ctxp = ctx;
  46. return 0;
  47. }
  48. int acpi_test_get_length(u8 *ptr)
  49. {
  50. if (!(*ptr & 0x80))
  51. return -EINVAL;
  52. return (*ptr & 0xf) | ptr[1] << 4 | ptr[2] << 12;
  53. }
  54. static int alloc_context(struct acpi_ctx **ctxp)
  55. {
  56. return acpi_test_alloc_context_size(ctxp, ACPI_CONTEXT_SIZE);
  57. }
  58. static void free_context(struct acpi_ctx **ctxp)
  59. {
  60. free((*ctxp)->base);
  61. free(*ctxp);
  62. *ctxp = NULL;
  63. }
  64. /* Test emitting simple types and acpigen_get_current() */
  65. static int dm_test_acpi_emit_simple(struct unit_test_state *uts)
  66. {
  67. struct acpi_ctx *ctx;
  68. u8 *ptr;
  69. ut_assertok(alloc_context(&ctx));
  70. ptr = acpigen_get_current(ctx);
  71. acpigen_emit_byte(ctx, 0x23);
  72. ut_asserteq(1, acpigen_get_current(ctx) - ptr);
  73. ut_asserteq(0x23, *(u8 *)ptr);
  74. acpigen_emit_word(ctx, 0x1234);
  75. ut_asserteq(3, acpigen_get_current(ctx) - ptr);
  76. ut_asserteq(0x1234, get_unaligned((u16 *)(ptr + 1)));
  77. acpigen_emit_dword(ctx, 0x87654321);
  78. ut_asserteq(7, acpigen_get_current(ctx) - ptr);
  79. ut_asserteq(0x87654321, get_unaligned((u32 *)(ptr + 3)));
  80. free_context(&ctx);
  81. return 0;
  82. }
  83. DM_TEST(dm_test_acpi_emit_simple, 0);
  84. /* Test emitting a stream */
  85. static int dm_test_acpi_emit_stream(struct unit_test_state *uts)
  86. {
  87. struct acpi_ctx *ctx;
  88. u8 *ptr;
  89. ut_assertok(alloc_context(&ctx));
  90. ptr = acpigen_get_current(ctx);
  91. acpigen_emit_stream(ctx, TEST_STREAM2, 2);
  92. ut_asserteq(2, acpigen_get_current(ctx) - ptr);
  93. ut_asserteq((u8)TEST_STREAM2[0], ptr[0]);
  94. ut_asserteq((u8)TEST_STREAM2[1], ptr[1]);
  95. free_context(&ctx);
  96. return 0;
  97. }
  98. DM_TEST(dm_test_acpi_emit_stream, 0);
  99. /* Test emitting a string */
  100. static int dm_test_acpi_emit_string(struct unit_test_state *uts)
  101. {
  102. struct acpi_ctx *ctx;
  103. u8 *ptr;
  104. ut_assertok(alloc_context(&ctx));
  105. ptr = acpigen_get_current(ctx);
  106. acpigen_emit_string(ctx, TEST_STRING);
  107. ut_asserteq(sizeof(TEST_STRING), acpigen_get_current(ctx) - ptr);
  108. ut_asserteq_str(TEST_STRING, (char *)ptr);
  109. free_context(&ctx);
  110. return 0;
  111. }
  112. DM_TEST(dm_test_acpi_emit_string, 0);
  113. /* Test emitting an interrupt descriptor */
  114. static int dm_test_acpi_interrupt(struct unit_test_state *uts)
  115. {
  116. struct acpi_ctx *ctx;
  117. struct udevice *dev;
  118. struct irq irq;
  119. u8 *ptr;
  120. ut_assertok(alloc_context(&ctx));
  121. ptr = acpigen_get_current(ctx);
  122. ut_assertok(uclass_first_device_err(UCLASS_TEST_FDT, &dev));
  123. ut_assertok(irq_get_by_index(dev, 0, &irq));
  124. /* See a-test, property interrupts-extended in the device tree */
  125. ut_asserteq(3, acpi_device_write_interrupt_irq(ctx, &irq));
  126. ut_asserteq(9, acpigen_get_current(ctx) - ptr);
  127. ut_asserteq(ACPI_DESCRIPTOR_INTERRUPT, ptr[0]);
  128. ut_asserteq(6, get_unaligned((u16 *)(ptr + 1)));
  129. ut_asserteq(0x19, ptr[3]);
  130. ut_asserteq(1, ptr[4]);
  131. ut_asserteq(3, get_unaligned((u32 *)(ptr + 5)));
  132. free_context(&ctx);
  133. return 0;
  134. }
  135. DM_TEST(dm_test_acpi_interrupt, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
  136. /* Test emitting a GPIO descriptor */
  137. static int dm_test_acpi_gpio(struct unit_test_state *uts)
  138. {
  139. struct gpio_desc desc;
  140. struct acpi_ctx *ctx;
  141. struct udevice *dev;
  142. u8 *ptr;
  143. ut_assertok(alloc_context(&ctx));
  144. ptr = acpigen_get_current(ctx);
  145. ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
  146. ut_asserteq_str("a-test", dev->name);
  147. ut_assertok(gpio_request_by_name(dev, "test-gpios", 1, &desc, 0));
  148. /* This should write GPIO pin 4 (see device tree test.dts ) */
  149. ut_asserteq(4, acpi_device_write_gpio_desc(ctx, &desc));
  150. ut_asserteq(35, acpigen_get_current(ctx) - ptr);
  151. ut_asserteq(ACPI_DESCRIPTOR_GPIO, ptr[0]);
  152. ut_asserteq(32, get_unaligned((u16 *)(ptr + 1)));
  153. ut_asserteq(ACPI_GPIO_REVISION_ID, ptr[3]);
  154. ut_asserteq(ACPI_GPIO_TYPE_IO, ptr[4]);
  155. ut_asserteq(1, get_unaligned((u16 *)(ptr + 5)));
  156. ut_asserteq(9, get_unaligned((u16 *)(ptr + 7)));
  157. ut_asserteq(ACPI_GPIO_PULL_UP, ptr[9]);
  158. ut_asserteq(1234, get_unaligned((u16 *)(ptr + 10)));
  159. ut_asserteq(0, get_unaligned((u16 *)(ptr + 12)));
  160. ut_asserteq(23, get_unaligned((u16 *)(ptr + 14)));
  161. ut_asserteq(0, ptr[16]);
  162. ut_asserteq(25, get_unaligned((u16 *)(ptr + 17)));
  163. ut_asserteq(35, get_unaligned((u16 *)(ptr + 19)));
  164. ut_asserteq(0, get_unaligned((u16 *)(ptr + 21)));
  165. /* pin0 */
  166. ut_asserteq(4, get_unaligned((u16 *)(ptr + 23)));
  167. ut_asserteq_str("\\_SB.PINC", (char *)ptr + 25);
  168. free_context(&ctx);
  169. return 0;
  170. }
  171. DM_TEST(dm_test_acpi_gpio, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
  172. /* Test emitting a GPIO descriptor with an interrupt */
  173. static int dm_test_acpi_gpio_irq(struct unit_test_state *uts)
  174. {
  175. struct gpio_desc desc;
  176. struct acpi_ctx *ctx;
  177. struct udevice *dev;
  178. u8 *ptr;
  179. ut_assertok(alloc_context(&ctx));
  180. ptr = acpigen_get_current(ctx);
  181. ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
  182. ut_asserteq_str("a-test", dev->name);
  183. ut_assertok(gpio_request_by_name(dev, "test2-gpios", 2, &desc, 0));
  184. /* This should write GPIO pin 6 (see device tree test.dts ) */
  185. ut_asserteq(6, acpi_device_write_gpio_desc(ctx, &desc));
  186. ut_asserteq(35, acpigen_get_current(ctx) - ptr);
  187. ut_asserteq(ACPI_DESCRIPTOR_GPIO, ptr[0]);
  188. ut_asserteq(32, get_unaligned((u16 *)(ptr + 1)));
  189. ut_asserteq(ACPI_GPIO_REVISION_ID, ptr[3]);
  190. ut_asserteq(ACPI_GPIO_TYPE_INTERRUPT, ptr[4]);
  191. ut_asserteq(1, get_unaligned((u16 *)(ptr + 5)));
  192. ut_asserteq(29, get_unaligned((u16 *)(ptr + 7)));
  193. ut_asserteq(ACPI_GPIO_PULL_DOWN, ptr[9]);
  194. ut_asserteq(0, get_unaligned((u16 *)(ptr + 10)));
  195. ut_asserteq(4321, get_unaligned((u16 *)(ptr + 12)));
  196. ut_asserteq(23, get_unaligned((u16 *)(ptr + 14)));
  197. ut_asserteq(0, ptr[16]);
  198. ut_asserteq(25, get_unaligned((u16 *)(ptr + 17)));
  199. ut_asserteq(35, get_unaligned((u16 *)(ptr + 19)));
  200. ut_asserteq(0, get_unaligned((u16 *)(ptr + 21)));
  201. /* pin0 */
  202. ut_asserteq(6, get_unaligned((u16 *)(ptr + 23)));
  203. ut_asserteq_str("\\_SB.PINC", (char *)ptr + 25);
  204. free_context(&ctx);
  205. return 0;
  206. }
  207. DM_TEST(dm_test_acpi_gpio_irq, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
  208. /* Test emitting either a GPIO or interrupt descriptor */
  209. static int dm_test_acpi_interrupt_or_gpio(struct unit_test_state *uts)
  210. {
  211. struct acpi_ctx *ctx;
  212. struct udevice *dev;
  213. u8 *ptr;
  214. ut_assertok(alloc_context(&ctx));
  215. ptr = acpigen_get_current(ctx);
  216. /* This should produce an interrupt, even though it also has a GPIO */
  217. ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
  218. ut_asserteq_str("a-test", dev->name);
  219. ut_asserteq(3, acpi_device_write_interrupt_or_gpio(ctx, dev,
  220. "test2-gpios"));
  221. ut_asserteq(ACPI_DESCRIPTOR_INTERRUPT, ptr[0]);
  222. /* This has no interrupt so should produce a GPIO */
  223. ptr = ctx->current;
  224. ut_assertok(uclass_find_first_device(UCLASS_PANEL_BACKLIGHT, &dev));
  225. ut_asserteq(1, acpi_device_write_interrupt_or_gpio(ctx, dev,
  226. "enable-gpios"));
  227. ut_asserteq(ACPI_DESCRIPTOR_GPIO, ptr[0]);
  228. /* This one has neither */
  229. ptr = acpigen_get_current(ctx);
  230. ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 3, &dev));
  231. ut_asserteq_str("b-test", dev->name);
  232. ut_asserteq(-ENOENT,
  233. acpi_device_write_interrupt_or_gpio(ctx, dev,
  234. "enable-gpios"));
  235. free_context(&ctx);
  236. return 0;
  237. }
  238. DM_TEST(dm_test_acpi_interrupt_or_gpio,
  239. UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
  240. /* Test emitting an I2C descriptor */
  241. static int dm_test_acpi_i2c(struct unit_test_state *uts)
  242. {
  243. struct acpi_ctx *ctx;
  244. struct udevice *dev;
  245. u8 *ptr;
  246. ut_assertok(alloc_context(&ctx));
  247. ptr = acpigen_get_current(ctx);
  248. ut_assertok(uclass_get_device(UCLASS_RTC, 0, &dev));
  249. ut_asserteq(0x43, acpi_device_write_i2c_dev(ctx, dev));
  250. ut_asserteq(28, acpigen_get_current(ctx) - ptr);
  251. ut_asserteq(ACPI_DESCRIPTOR_SERIAL_BUS, ptr[0]);
  252. ut_asserteq(25, get_unaligned((u16 *)(ptr + 1)));
  253. ut_asserteq(ACPI_I2C_SERIAL_BUS_REVISION_ID, ptr[3]);
  254. ut_asserteq(0, ptr[4]);
  255. ut_asserteq(ACPI_SERIAL_BUS_TYPE_I2C, ptr[5]);
  256. ut_asserteq(0, get_unaligned((u16 *)(ptr + 7)));
  257. ut_asserteq(ACPI_I2C_TYPE_SPECIFIC_REVISION_ID, ptr[9]);
  258. ut_asserteq(6, get_unaligned((u16 *)(ptr + 10)));
  259. ut_asserteq(100000, get_unaligned((u32 *)(ptr + 12)));
  260. ut_asserteq(0x43, get_unaligned((u16 *)(ptr + 16)));
  261. ut_asserteq_str("\\_SB.I2C0", (char *)ptr + 18);
  262. free_context(&ctx);
  263. return 0;
  264. }
  265. DM_TEST(dm_test_acpi_i2c, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
  266. /* Test emitting a SPI descriptor */
  267. static int dm_test_acpi_spi(struct unit_test_state *uts)
  268. {
  269. struct acpi_ctx *ctx;
  270. struct udevice *dev;
  271. u8 *ptr;
  272. ut_assertok(alloc_context(&ctx));
  273. ptr = acpigen_get_current(ctx);
  274. ut_assertok(uclass_first_device_err(UCLASS_SPI_FLASH, &dev));
  275. ut_assertok(acpi_device_write_spi_dev(ctx, dev));
  276. ut_asserteq(31, acpigen_get_current(ctx) - ptr);
  277. ut_asserteq(ACPI_DESCRIPTOR_SERIAL_BUS, ptr[0]);
  278. ut_asserteq(28, get_unaligned((u16 *)(ptr + 1)));
  279. ut_asserteq(ACPI_SPI_SERIAL_BUS_REVISION_ID, ptr[3]);
  280. ut_asserteq(0, ptr[4]);
  281. ut_asserteq(ACPI_SERIAL_BUS_TYPE_SPI, ptr[5]);
  282. ut_asserteq(2, ptr[6]);
  283. ut_asserteq(0, get_unaligned((u16 *)(ptr + 7)));
  284. ut_asserteq(ACPI_SPI_TYPE_SPECIFIC_REVISION_ID, ptr[9]);
  285. ut_asserteq(9, get_unaligned((u16 *)(ptr + 10)));
  286. ut_asserteq(40000000, get_unaligned((u32 *)(ptr + 12)));
  287. ut_asserteq(8, ptr[16]);
  288. ut_asserteq(0, ptr[17]);
  289. ut_asserteq(0, ptr[18]);
  290. ut_asserteq(0, get_unaligned((u16 *)(ptr + 19)));
  291. ut_asserteq_str("\\_SB.SPI0", (char *)ptr + 21);
  292. free_context(&ctx);
  293. return 0;
  294. }
  295. DM_TEST(dm_test_acpi_spi, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
  296. /* Test emitting a length */
  297. static int dm_test_acpi_len(struct unit_test_state *uts)
  298. {
  299. const int size = 0xc0000;
  300. struct acpi_ctx *ctx;
  301. u8 *ptr;
  302. int i;
  303. ut_assertok(acpi_test_alloc_context_size(&ctx, size));
  304. ptr = acpigen_get_current(ctx);
  305. /* Write a byte and a 3-byte length */
  306. acpigen_write_len_f(ctx);
  307. acpigen_emit_byte(ctx, 0x23);
  308. acpigen_pop_len(ctx);
  309. ut_asserteq(1 + 3, acpi_test_get_length(ptr));
  310. /* Write 200 bytes so we need two length bytes */
  311. ptr = ctx->current;
  312. acpigen_write_len_f(ctx);
  313. for (i = 0; i < 200; i++)
  314. acpigen_emit_byte(ctx, 0x23);
  315. acpigen_pop_len(ctx);
  316. ut_asserteq(200 + 3, acpi_test_get_length(ptr));
  317. /* Write 40KB so we need three length bytes */
  318. ptr = ctx->current;
  319. acpigen_write_len_f(ctx);
  320. for (i = 0; i < 40000; i++)
  321. acpigen_emit_byte(ctx, 0x23);
  322. acpigen_pop_len(ctx);
  323. ut_asserteq(40000 + 3, acpi_test_get_length(ptr));
  324. free_context(&ctx);
  325. return 0;
  326. }
  327. DM_TEST(dm_test_acpi_len, 0);
  328. /* Test writing a package */
  329. static int dm_test_acpi_package(struct unit_test_state *uts)
  330. {
  331. struct acpi_ctx *ctx;
  332. char *num_elements;
  333. u8 *ptr;
  334. ut_assertok(alloc_context(&ctx));
  335. ptr = acpigen_get_current(ctx);
  336. num_elements = acpigen_write_package(ctx, 3);
  337. ut_asserteq_ptr(num_elements, ptr + 4);
  338. /* For ease of testing, just emit a byte, not valid package contents */
  339. acpigen_emit_byte(ctx, 0x23);
  340. acpigen_pop_len(ctx);
  341. ut_asserteq(PACKAGE_OP, ptr[0]);
  342. ut_asserteq(5, acpi_test_get_length(ptr + 1));
  343. ut_asserteq(3, ptr[4]);
  344. free_context(&ctx);
  345. return 0;
  346. }
  347. DM_TEST(dm_test_acpi_package, 0);
  348. /* Test writing an integer */
  349. static int dm_test_acpi_integer(struct unit_test_state *uts)
  350. {
  351. struct acpi_ctx *ctx;
  352. u8 *ptr;
  353. ut_assertok(alloc_context(&ctx));
  354. ptr = acpigen_get_current(ctx);
  355. acpigen_write_integer(ctx, 0);
  356. acpigen_write_integer(ctx, 1);
  357. acpigen_write_integer(ctx, TEST_INT8);
  358. acpigen_write_integer(ctx, TEST_INT16);
  359. acpigen_write_integer(ctx, TEST_INT32);
  360. acpigen_write_integer(ctx, TEST_INT64);
  361. ut_asserteq(6 + 1 + 2 + 4 + 8, acpigen_get_current(ctx) - ptr);
  362. ut_asserteq(ZERO_OP, ptr[0]);
  363. ut_asserteq(ONE_OP, ptr[1]);
  364. ut_asserteq(BYTE_PREFIX, ptr[2]);
  365. ut_asserteq(TEST_INT8, ptr[3]);
  366. ut_asserteq(WORD_PREFIX, ptr[4]);
  367. ut_asserteq(TEST_INT16, get_unaligned((u16 *)(ptr + 5)));
  368. ut_asserteq(DWORD_PREFIX, ptr[7]);
  369. ut_asserteq(TEST_INT32, get_unaligned((u32 *)(ptr + 8)));
  370. ut_asserteq(QWORD_PREFIX, ptr[12]);
  371. ut_asserteq_64(TEST_INT64, get_unaligned((u64 *)(ptr + 13)));
  372. free_context(&ctx);
  373. return 0;
  374. }
  375. DM_TEST(dm_test_acpi_integer, 0);
  376. /* Test writing a string */
  377. static int dm_test_acpi_string(struct unit_test_state *uts)
  378. {
  379. struct acpi_ctx *ctx;
  380. u8 *ptr;
  381. ut_assertok(alloc_context(&ctx));
  382. ptr = acpigen_get_current(ctx);
  383. acpigen_write_string(ctx, TEST_STRING);
  384. acpigen_write_string(ctx, TEST_STRING2);
  385. ut_asserteq(2 + sizeof(TEST_STRING) + sizeof(TEST_STRING2),
  386. acpigen_get_current(ctx) - ptr);
  387. ut_asserteq(STRING_PREFIX, ptr[0]);
  388. ut_asserteq_str(TEST_STRING, (char *)ptr + 1);
  389. ptr += 1 + sizeof(TEST_STRING);
  390. ut_asserteq(STRING_PREFIX, ptr[0]);
  391. ut_asserteq_str(TEST_STRING2, (char *)ptr + 1);
  392. free_context(&ctx);
  393. return 0;
  394. }
  395. DM_TEST(dm_test_acpi_string, 0);
  396. /* Test writing a name */
  397. static int dm_test_acpi_name(struct unit_test_state *uts)
  398. {
  399. struct acpi_ctx *ctx;
  400. u8 *ptr;
  401. ut_assertok(alloc_context(&ctx));
  402. ptr = acpigen_get_current(ctx);
  403. /*
  404. * The names here are made up for testing the various cases. The
  405. * grammar is in the ACPI spec 6.3 section 19.2.2
  406. */
  407. acpigen_write_name(ctx, "\\_SB");
  408. acpigen_write_name(ctx, "\\_SB.I2C0");
  409. acpigen_write_name(ctx, "\\_SB.I2C0.TPM2");
  410. acpigen_write_name(ctx, "\\_SB.I2C0.TPM2.LONG");
  411. acpigen_write_name(ctx, "^^^^SPI0.FLAS");
  412. acpigen_write_name(ctx, "NN");
  413. acpigen_write_name(ctx, "^AB.CD.D.EFG");
  414. acpigen_write_name(ctx, "^^^^");
  415. acpigen_write_name(ctx, "\\");
  416. acpigen_write_name(ctx, "\\ABCD");
  417. ut_asserteq(107, acpigen_get_current(ctx) - ptr);
  418. ut_asserteq(NAME_OP, ptr[0]);
  419. ut_asserteq_strn("\\_SB_", (char *)ptr + 1);
  420. ptr += 6;
  421. ut_asserteq(NAME_OP, ptr[0]);
  422. ut_asserteq('\\', ptr[1]);
  423. ut_asserteq(DUAL_NAME_PREFIX, ptr[2]);
  424. ut_asserteq_strn("_SB_I2C0", (char *)ptr + 3);
  425. ptr += 11;
  426. ut_asserteq(NAME_OP, ptr[0]);
  427. ut_asserteq('\\', ptr[1]);
  428. ut_asserteq(MULTI_NAME_PREFIX, ptr[2]);
  429. ut_asserteq(3, ptr[3]);
  430. ut_asserteq_strn("_SB_I2C0TPM2", (char *)ptr + 4);
  431. ptr += 16;
  432. ut_asserteq(NAME_OP, ptr[0]);
  433. ut_asserteq('\\', ptr[1]);
  434. ut_asserteq(MULTI_NAME_PREFIX, ptr[2]);
  435. ut_asserteq(4, ptr[3]);
  436. ut_asserteq_strn("_SB_I2C0TPM2LONG", (char *)ptr + 4);
  437. ptr += 20;
  438. ut_asserteq(NAME_OP, ptr[0]);
  439. ut_asserteq('^', ptr[1]);
  440. ut_asserteq('^', ptr[2]);
  441. ut_asserteq('^', ptr[3]);
  442. ut_asserteq('^', ptr[4]);
  443. ut_asserteq(DUAL_NAME_PREFIX, ptr[5]);
  444. ut_asserteq_strn("SPI0FLAS", (char *)ptr + 6);
  445. ptr += 14;
  446. ut_asserteq(NAME_OP, ptr[0]);
  447. ut_asserteq_strn("NN__", (char *)ptr + 1);
  448. ptr += 5;
  449. ut_asserteq(NAME_OP, ptr[0]);
  450. ut_asserteq('^', ptr[1]);
  451. ut_asserteq(MULTI_NAME_PREFIX, ptr[2]);
  452. ut_asserteq(4, ptr[3]);
  453. ut_asserteq_strn("AB__CD__D___EFG_", (char *)ptr + 4);
  454. ptr += 20;
  455. ut_asserteq(NAME_OP, ptr[0]);
  456. ut_asserteq('^', ptr[1]);
  457. ut_asserteq('^', ptr[2]);
  458. ut_asserteq('^', ptr[3]);
  459. ut_asserteq('^', ptr[4]);
  460. ut_asserteq(ZERO_OP, ptr[5]);
  461. ptr += 6;
  462. ut_asserteq(NAME_OP, ptr[0]);
  463. ut_asserteq('\\', ptr[1]);
  464. ut_asserteq(ZERO_OP, ptr[2]);
  465. ptr += 3;
  466. ut_asserteq(NAME_OP, ptr[0]);
  467. ut_asserteq_strn("\\ABCD", (char *)ptr + 1);
  468. ptr += 5;
  469. free_context(&ctx);
  470. return 0;
  471. }
  472. DM_TEST(dm_test_acpi_name, 0);
  473. /* Test writing a UUID */
  474. static int dm_test_acpi_uuid(struct unit_test_state *uts)
  475. {
  476. struct acpi_ctx *ctx;
  477. u8 *ptr;
  478. ut_assertok(alloc_context(&ctx));
  479. ptr = acpigen_get_current(ctx);
  480. ut_assertok(acpigen_write_uuid(ctx,
  481. "dbb8e3e6-5886-4ba6-8795-1319f52a966b"));
  482. ut_asserteq(23, acpigen_get_current(ctx) - ptr);
  483. ut_asserteq(BUFFER_OP, ptr[0]);
  484. ut_asserteq(22, acpi_test_get_length(ptr + 1));
  485. ut_asserteq(0xdbb8e3e6, get_unaligned((u32 *)(ptr + 7)));
  486. ut_asserteq(0x5886, get_unaligned((u16 *)(ptr + 11)));
  487. ut_asserteq(0x4ba6, get_unaligned((u16 *)(ptr + 13)));
  488. ut_asserteq(0x9587, get_unaligned((u16 *)(ptr + 15)));
  489. ut_asserteq(0x2af51913, get_unaligned((u32 *)(ptr + 17)));
  490. ut_asserteq(0x6b96, get_unaligned((u16 *)(ptr + 21)));
  491. /* Try a bad UUID */
  492. ut_asserteq(-EINVAL,
  493. acpigen_write_uuid(ctx,
  494. "dbb8e3e6-5886-4ba6x8795-1319f52a966b"));
  495. free_context(&ctx);
  496. return 0;
  497. }
  498. DM_TEST(dm_test_acpi_uuid, 0);
  499. /* Test writing misc ACPI codes */
  500. static int dm_test_acpi_misc(struct unit_test_state *uts)
  501. {
  502. struct acpi_ctx *ctx;
  503. const int flags = 3;
  504. const int nargs = 4;
  505. u8 *ptr;
  506. ut_assertok(alloc_context(&ctx));
  507. ptr = acpigen_get_current(ctx);
  508. acpigen_write_sleep(ctx, TEST_INT64);
  509. ut_asserteq_64(TEST_INT64, get_unaligned((u64 *)(ptr + 3)));
  510. ptr += 11;
  511. acpigen_write_store(ctx);
  512. ut_asserteq(STORE_OP, *ptr);
  513. ptr++;
  514. acpigen_write_debug_string(ctx, TEST_STRING);
  515. ut_asserteq_str(TEST_STRING, (char *)ptr + 2);
  516. ptr += 2 + sizeof(TEST_STRING);
  517. ut_asserteq(EXT_OP_PREFIX, ptr[0]);
  518. ut_asserteq(DEBUG_OP, ptr[1]);
  519. ptr += 2;
  520. acpigen_write_sta(ctx, flags);
  521. ut_asserteq(METHOD_OP, ptr[0]);
  522. ut_asserteq(11, acpi_test_get_length(ptr + 1));
  523. ut_asserteq_strn("_STA", (char *)ptr + 4);
  524. ut_asserteq(0, ptr[8]);
  525. ut_asserteq(RETURN_OP, ptr[9]);
  526. ut_asserteq(BYTE_PREFIX, ptr[10]);
  527. ut_asserteq(flags, ptr[11]);
  528. ptr += 12;
  529. acpigen_write_sleep(ctx, TEST_INT16);
  530. ut_asserteq(SLEEP_OP, ptr[1]);
  531. ut_asserteq(TEST_INT16, get_unaligned((u16 *)(ptr + 3)));
  532. ptr += 5;
  533. acpigen_write_method_serialized(ctx, "FRED", nargs);
  534. ut_asserteq(METHOD_OP, ptr[0]);
  535. ut_asserteq_strn("FRED", (char *)ptr + 4);
  536. ut_asserteq(1 << 3 | nargs, ptr[8]);
  537. ut_asserteq(1, ctx->ltop); /* method is unfinished */
  538. ptr += 9;
  539. acpigen_write_or(ctx, LOCAL0_OP, LOCAL1_OP, LOCAL2_OP);
  540. acpigen_write_and(ctx, LOCAL3_OP, LOCAL4_OP, LOCAL5_OP);
  541. acpigen_write_not(ctx, LOCAL6_OP, LOCAL7_OP);
  542. ut_asserteq(OR_OP, ptr[0]);
  543. ut_asserteq(LOCAL0_OP, ptr[1]);
  544. ut_asserteq(LOCAL1_OP, ptr[2]);
  545. ut_asserteq(LOCAL2_OP, ptr[3]);
  546. ptr += 4;
  547. ut_asserteq(AND_OP, ptr[0]);
  548. ut_asserteq(LOCAL3_OP, ptr[1]);
  549. ut_asserteq(LOCAL4_OP, ptr[2]);
  550. ut_asserteq(LOCAL5_OP, ptr[3]);
  551. ptr += 4;
  552. ut_asserteq(NOT_OP, ptr[0]);
  553. ut_asserteq(LOCAL6_OP, ptr[1]);
  554. ut_asserteq(LOCAL7_OP, ptr[2]);
  555. ptr += 3;
  556. ut_asserteq_ptr(ptr, ctx->current);
  557. free_context(&ctx);
  558. return 0;
  559. }
  560. DM_TEST(dm_test_acpi_misc, 0);
  561. /* Test writing an ACPI power resource */
  562. static int dm_test_acpi_power_res(struct unit_test_state *uts)
  563. {
  564. const char *const states[] = { "_PR0", "_PR3" };
  565. const char *name = "PRIC";
  566. const int level = 3;
  567. const int order = 2;
  568. struct acpi_ctx *ctx;
  569. u8 *ptr;
  570. ut_assertok(alloc_context(&ctx));
  571. ptr = acpigen_get_current(ctx);
  572. /* PowerResource (PRIC, 0, 0) */
  573. acpigen_write_power_res(ctx, name, level, order, states,
  574. ARRAY_SIZE(states));
  575. ut_asserteq(0x28, acpigen_get_current(ctx) - ptr);
  576. ut_asserteq(NAME_OP, ptr[0]);
  577. ut_asserteq_strn(states[0], (char *)ptr + 1);
  578. ut_asserteq(8, acpi_test_get_length(ptr + 6));
  579. ut_asserteq_strn(name, (char *)ptr + 0xa);
  580. ut_asserteq_strn(states[1], (char *)ptr + 0xf);
  581. ut_asserteq(8, acpi_test_get_length(ptr + 0x14));
  582. ut_asserteq_strn(name, (char *)ptr + 0x18);
  583. ut_asserteq(POWER_RES_OP, ptr[0x1d]);
  584. ut_asserteq_strn(name, (char *)ptr + 0x21);
  585. ut_asserteq(level, ptr[0x25]);
  586. ut_asserteq(order, get_unaligned((u16 *)(ptr + 0x26)));
  587. /* The length is not set - caller must use acpigen_pop_len() */
  588. ut_asserteq(1, ctx->ltop);
  589. free_context(&ctx);
  590. return 0;
  591. }
  592. DM_TEST(dm_test_acpi_power_res, 0);
  593. /* Test writing ACPI code to toggle a GPIO */
  594. static int dm_test_acpi_gpio_toggle(struct unit_test_state *uts)
  595. {
  596. const uint addr = 0x80012;
  597. const int txbit = BIT(2);
  598. struct gpio_desc desc;
  599. struct acpi_gpio gpio;
  600. struct acpi_ctx *ctx;
  601. struct udevice *dev;
  602. u8 *ptr;
  603. ut_assertok(alloc_context(&ctx));
  604. ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
  605. ut_asserteq_str("a-test", dev->name);
  606. ut_assertok(gpio_request_by_name(dev, "test2-gpios", 2, &desc, 0));
  607. ut_assertok(gpio_get_acpi(&desc, &gpio));
  608. /* Spot-check the results - see sb_gpio_get_acpi() */
  609. ptr = acpigen_get_current(ctx);
  610. acpigen_set_enable_tx_gpio(ctx, txbit, "\\_SB.GPC0", "\\_SB.SPC0",
  611. &gpio, true);
  612. acpigen_set_enable_tx_gpio(ctx, txbit, "\\_SB.GPC0", "\\_SB.SPC0",
  613. &gpio, false);
  614. /* Since this GPIO is active low, we expect it to be cleared here */
  615. ut_asserteq(STORE_OP, *ptr);
  616. ut_asserteq_strn("_SB_GPC0", (char *)ptr + 3);
  617. ut_asserteq(addr + desc.offset, get_unaligned((u32 *)(ptr + 0xc)));
  618. ut_asserteq(LOCAL5_OP, ptr[0x10]);
  619. ut_asserteq(STORE_OP, ptr[0x11]);
  620. ut_asserteq(BYTE_PREFIX, ptr[0x12]);
  621. ut_asserteq(txbit, ptr[0x13]);
  622. ut_asserteq(LOCAL0_OP, ptr[0x14]);
  623. ut_asserteq(NOT_OP, ptr[0x15]);
  624. ut_asserteq(LOCAL0_OP, ptr[0x16]);
  625. ut_asserteq(LOCAL6_OP, ptr[0x17]);
  626. ut_asserteq(AND_OP, ptr[0x18]);
  627. ut_asserteq_strn("_SB_SPC0", (char *)ptr + 0x1e);
  628. ut_asserteq(addr + desc.offset, get_unaligned((u32 *)(ptr + 0x27)));
  629. ut_asserteq(LOCAL5_OP, ptr[0x2b]);
  630. /* Now the second one, which should be set */
  631. ut_asserteq_strn("_SB_GPC0", (char *)ptr + 0x2f);
  632. ut_asserteq(addr + desc.offset, get_unaligned((u32 *)(ptr + 0x38)));
  633. ut_asserteq(LOCAL5_OP, ptr[0x3c]);
  634. ut_asserteq(STORE_OP, ptr[0x3d]);
  635. ut_asserteq(OR_OP, ptr[0x41]);
  636. ut_asserteq(LOCAL0_OP, ptr[0x43]);
  637. ut_asserteq_strn("_SB_SPC0", (char *)ptr + 0x47);
  638. ut_asserteq(addr + desc.offset, get_unaligned((u32 *)(ptr + 0x50)));
  639. ut_asserteq(LOCAL5_OP, ptr[0x54]);
  640. ut_asserteq(0x55, acpigen_get_current(ctx) - ptr);
  641. free_context(&ctx);
  642. return 0;
  643. }
  644. DM_TEST(dm_test_acpi_gpio_toggle, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
  645. /* Test writing ACPI code to output power-sequence info */
  646. static int dm_test_acpi_power_seq(struct unit_test_state *uts)
  647. {
  648. struct gpio_desc reset, enable, stop;
  649. const uint addr = 0xc00dc, addr_act_low = 0x80012;
  650. const int txbit = BIT(2);
  651. struct acpi_ctx *ctx;
  652. struct udevice *dev;
  653. u8 *ptr;
  654. ut_assertok(acpi_test_alloc_context_size(&ctx, 400));
  655. ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
  656. ut_asserteq_str("a-test", dev->name);
  657. ut_assertok(gpio_request_by_name(dev, "test2-gpios", 0, &reset, 0));
  658. ut_assertok(gpio_request_by_name(dev, "test2-gpios", 1, &enable, 0));
  659. ut_assertok(gpio_request_by_name(dev, "test2-gpios", 2, &stop, 0));
  660. ptr = acpigen_get_current(ctx);
  661. ut_assertok(acpi_device_add_power_res(ctx, txbit, "\\_SB.GPC0",
  662. "\\_SB.SPC0", &reset, 2, 3,
  663. &enable, 4, 5, &stop, 6, 7));
  664. ut_asserteq(0x186, acpigen_get_current(ctx) - ptr);
  665. ut_asserteq_strn("PRIC", (char *)ptr + 0x18);
  666. /* First the 'ON' sequence - spot check */
  667. ut_asserteq_strn("_ON_", (char *)ptr + 0x38);
  668. /* reset set */
  669. ut_asserteq(addr + reset.offset, get_unaligned((u32 *)(ptr + 0x49)));
  670. ut_asserteq(OR_OP, ptr[0x52]);
  671. /* enable set */
  672. ut_asserteq(addr + enable.offset, get_unaligned((u32 *)(ptr + 0x72)));
  673. ut_asserteq(OR_OP, ptr[0x7b]);
  674. /* reset clear */
  675. ut_asserteq(addr + reset.offset, get_unaligned((u32 *)(ptr + 0x9f)));
  676. ut_asserteq(NOT_OP, ptr[0xa8]);
  677. /* stop set (disable, active low) */
  678. ut_asserteq(addr_act_low + stop.offset,
  679. get_unaligned((u32 *)(ptr + 0xcf)));
  680. ut_asserteq(OR_OP, ptr[0xd8]);
  681. /* Now the 'OFF' sequence */
  682. ut_asserteq_strn("_OFF", (char *)ptr + 0xf4);
  683. /* stop clear (enable, active low) */
  684. ut_asserteq(addr_act_low + stop.offset,
  685. get_unaligned((u32 *)(ptr + 0x105)));
  686. ut_asserteq(NOT_OP, ptr[0x10e]);
  687. /* reset clear */
  688. ut_asserteq(addr + reset.offset, get_unaligned((u32 *)(ptr + 0x135)));
  689. ut_asserteq(OR_OP, ptr[0x13e]);
  690. /* enable clear */
  691. ut_asserteq(addr + enable.offset, get_unaligned((u32 *)(ptr + 0x162)));
  692. ut_asserteq(NOT_OP, ptr[0x16b]);
  693. free_context(&ctx);
  694. return 0;
  695. }
  696. DM_TEST(dm_test_acpi_power_seq, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
  697. /* Test writing values */
  698. static int dm_test_acpi_write_values(struct unit_test_state *uts)
  699. {
  700. struct acpi_ctx *ctx;
  701. u8 *ptr;
  702. ut_assertok(alloc_context(&ctx));
  703. ptr = acpigen_get_current(ctx);
  704. acpigen_write_zero(ctx);
  705. acpigen_write_one(ctx);
  706. acpigen_write_byte(ctx, TEST_INT8);
  707. acpigen_write_word(ctx, TEST_INT16);
  708. acpigen_write_dword(ctx, TEST_INT32);
  709. acpigen_write_qword(ctx, TEST_INT64);
  710. ut_asserteq(ZERO_OP, *ptr++);
  711. ut_asserteq(ONE_OP, *ptr++);
  712. ut_asserteq(BYTE_PREFIX, *ptr++);
  713. ut_asserteq(TEST_INT8, *ptr++);
  714. ut_asserteq(WORD_PREFIX, *ptr++);
  715. ut_asserteq(TEST_INT16, get_unaligned((u16 *)ptr));
  716. ptr += 2;
  717. ut_asserteq(DWORD_PREFIX, *ptr++);
  718. ut_asserteq(TEST_INT32, get_unaligned((u32 *)ptr));
  719. ptr += 4;
  720. ut_asserteq(QWORD_PREFIX, *ptr++);
  721. ut_asserteq_64(TEST_INT64, get_unaligned((u64 *)ptr));
  722. ptr += 8;
  723. ut_asserteq_ptr(ptr, ctx->current);
  724. free_context(&ctx);
  725. return 0;
  726. }
  727. DM_TEST(dm_test_acpi_write_values, 0);
  728. /* Test writing a scope */
  729. static int dm_test_acpi_scope(struct unit_test_state *uts)
  730. {
  731. char buf[ACPI_PATH_MAX];
  732. struct acpi_ctx *ctx;
  733. struct udevice *dev;
  734. u8 *ptr;
  735. ut_assertok(alloc_context(&ctx));
  736. ptr = acpigen_get_current(ctx);
  737. ut_assertok(uclass_first_device_err(UCLASS_TEST_ACPI, &dev));
  738. ut_assertok(acpi_device_path(dev, buf, sizeof(buf)));
  739. acpigen_write_scope(ctx, buf);
  740. acpigen_pop_len(ctx);
  741. ut_asserteq(SCOPE_OP, *ptr++);
  742. ut_asserteq(13, acpi_test_get_length(ptr));
  743. ptr += 3;
  744. ut_asserteq(ROOT_PREFIX, *ptr++);
  745. ut_asserteq(DUAL_NAME_PREFIX, *ptr++);
  746. ut_asserteq_strn("_SB_" ACPI_TEST_DEV_NAME, (char *)ptr);
  747. ptr += 8;
  748. ut_asserteq_ptr(ptr, ctx->current);
  749. free_context(&ctx);
  750. return 0;
  751. }
  752. DM_TEST(dm_test_acpi_scope, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
  753. /* Test writing a resource template */
  754. static int dm_test_acpi_resource_template(struct unit_test_state *uts)
  755. {
  756. struct acpi_gen_regaddr addr;
  757. struct acpi_ctx *ctx;
  758. u8 *ptr;
  759. ut_assertok(alloc_context(&ctx));
  760. ptr = acpigen_get_current(ctx);
  761. addr.space_id = ACPI_ADDRESS_SPACE_EC;
  762. addr.bit_width = 32;
  763. addr.bit_offset = 8;
  764. addr.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
  765. addr.addrl = TEST_INT64 & 0xffffffff;
  766. addr.addrh = TEST_INT64 >> 32;
  767. acpigen_write_register_resource(ctx, &addr);
  768. ut_asserteq(BUFFER_OP, *ptr++);
  769. ut_asserteq(0x17, acpi_test_get_length(ptr));
  770. ptr += 3;
  771. ut_asserteq(WORD_PREFIX, *ptr++);
  772. ut_asserteq(0x11, get_unaligned((u16 *)ptr));
  773. ptr += 2;
  774. ut_asserteq(ACPI_DESCRIPTOR_REGISTER, *ptr++);
  775. ut_asserteq(0xc, *ptr++);
  776. ut_asserteq(0, *ptr++);
  777. ut_asserteq(ACPI_ADDRESS_SPACE_EC, *ptr++);
  778. ut_asserteq(32, *ptr++);
  779. ut_asserteq(8, *ptr++);
  780. ut_asserteq(ACPI_ACCESS_SIZE_DWORD_ACCESS, *ptr++);
  781. ut_asserteq(TEST_INT64 & 0xffffffff, get_unaligned((u32 *)ptr));
  782. ptr += 4;
  783. ut_asserteq(TEST_INT64 >> 32, get_unaligned((u32 *)ptr));
  784. ptr += 4;
  785. ut_asserteq(ACPI_END_TAG, *ptr++);
  786. ut_asserteq(0x00, *ptr++);
  787. ut_asserteq_ptr(ptr, ctx->current);
  788. free_context(&ctx);
  789. return 0;
  790. }
  791. DM_TEST(dm_test_acpi_resource_template, 0);
  792. /* Test writing a device */
  793. static int dm_test_acpi_device(struct unit_test_state *uts)
  794. {
  795. struct acpi_ctx *ctx;
  796. u8 *ptr;
  797. ut_assertok(alloc_context(&ctx));
  798. ptr = acpigen_get_current(ctx);
  799. acpigen_write_device(ctx, "\\_SB." ACPI_TEST_DEV_NAME);
  800. acpigen_pop_len(ctx);
  801. ut_asserteq(EXT_OP_PREFIX, *ptr++);
  802. ut_asserteq(DEVICE_OP, *ptr++);
  803. ut_asserteq(0xd, acpi_test_get_length(ptr));
  804. ptr += 3;
  805. ut_asserteq(ROOT_PREFIX, *ptr++);
  806. ut_asserteq(DUAL_NAME_PREFIX, *ptr++);
  807. ptr += 8;
  808. ut_asserteq_ptr(ptr, ctx->current);
  809. free_context(&ctx);
  810. return 0;
  811. }
  812. DM_TEST(dm_test_acpi_device, 0);
  813. /* Test writing named values */
  814. static int dm_test_acpi_write_name(struct unit_test_state *uts)
  815. {
  816. const char *name = "\\_SB." ACPI_TEST_DEV_NAME;
  817. struct acpi_ctx *ctx;
  818. u8 *ptr;
  819. ut_assertok(alloc_context(&ctx));
  820. ptr = acpigen_get_current(ctx);
  821. acpigen_write_name_zero(ctx, name);
  822. acpigen_write_name_one(ctx, name);
  823. acpigen_write_name_byte(ctx, name, TEST_INT8);
  824. acpigen_write_name_word(ctx, name, TEST_INT16);
  825. acpigen_write_name_dword(ctx, name, TEST_INT32);
  826. acpigen_write_name_qword(ctx, name, TEST_INT64);
  827. acpigen_write_name_integer(ctx, name, TEST_INT64 + 1);
  828. acpigen_write_name_string(ctx, name, "baldrick");
  829. acpigen_write_name_string(ctx, name, NULL);
  830. ut_asserteq(NAME_OP, *ptr++);
  831. ut_asserteq_strn("\\._SB_ABCD", (char *)ptr);
  832. ptr += 10;
  833. ut_asserteq(ZERO_OP, *ptr++);
  834. ut_asserteq(NAME_OP, *ptr++);
  835. ptr += 10;
  836. ut_asserteq(ONE_OP, *ptr++);
  837. ut_asserteq(NAME_OP, *ptr++);
  838. ptr += 10;
  839. ut_asserteq(BYTE_PREFIX, *ptr++);
  840. ut_asserteq(TEST_INT8, *ptr++);
  841. ut_asserteq(NAME_OP, *ptr++);
  842. ptr += 10;
  843. ut_asserteq(WORD_PREFIX, *ptr++);
  844. ut_asserteq(TEST_INT16, get_unaligned((u16 *)ptr));
  845. ptr += 2;
  846. ut_asserteq(NAME_OP, *ptr++);
  847. ptr += 10;
  848. ut_asserteq(DWORD_PREFIX, *ptr++);
  849. ut_asserteq(TEST_INT32, get_unaligned((u32 *)ptr));
  850. ptr += 4;
  851. ut_asserteq(NAME_OP, *ptr++);
  852. ptr += 10;
  853. ut_asserteq(QWORD_PREFIX, *ptr++);
  854. ut_asserteq_64(TEST_INT64, get_unaligned((u64 *)ptr));
  855. ptr += 8;
  856. ut_asserteq(NAME_OP, *ptr++);
  857. ptr += 10;
  858. ut_asserteq(QWORD_PREFIX, *ptr++);
  859. ut_asserteq_64(TEST_INT64 + 1, get_unaligned((u64 *)ptr));
  860. ptr += 8;
  861. ut_asserteq(NAME_OP, *ptr++);
  862. ptr += 10;
  863. ut_asserteq(STRING_PREFIX, *ptr++);
  864. ut_asserteq_str("baldrick", (char *)ptr)
  865. ptr += 9;
  866. ut_asserteq(NAME_OP, *ptr++);
  867. ptr += 10;
  868. ut_asserteq(STRING_PREFIX, *ptr++);
  869. ut_asserteq('\0', *ptr++);
  870. ut_asserteq_ptr(ptr, ctx->current);
  871. free_context(&ctx);
  872. return 0;
  873. }
  874. DM_TEST(dm_test_acpi_write_name, 0);