dw-csi-sysfs.c 17 KB

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  1. // SPDX-License-Identifier: GPL-2.0
  2. /*
  3. * Copyright (c) 2018-2019 Synopsys, Inc. and/or its affiliates.
  4. *
  5. * Synopsys DesignWare MIPI CSI-2 Host controller driver.
  6. * SysFS components for the platform driver
  7. *
  8. * Author: Luis Oliveira <Luis.Oliveira@synopsys.com>
  9. */
  10. #include "dw-mipi-csi.h"
  11. #include "bm_csi_hw.h"
  12. static ssize_t core_version_show(struct device *dev,
  13. struct device_attribute *attr,
  14. char *buf)
  15. {
  16. struct platform_device *pdev = to_platform_device(dev);
  17. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  18. struct dw_csi *csi_dev = &drvdata->csi_dev;
  19. char buffer[10];
  20. snprintf(buffer, 10, "v.%d.%d*\n", csi_dev->hw_version_major,
  21. csi_dev->hw_version_minor);
  22. return strlcpy(buf, buffer, PAGE_SIZE);
  23. }
  24. static ssize_t n_lanes_store(struct device *dev, struct device_attribute *attr,
  25. const char *buf, size_t count)
  26. {
  27. int ret;
  28. unsigned long lanes;
  29. struct platform_device *pdev = to_platform_device(dev);
  30. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  31. struct dw_csi *csi_dev = &drvdata->csi_dev;
  32. ret = kstrtoul(buf, 10, &lanes);
  33. if (ret < 0)
  34. return ret;
  35. if (lanes > 8) {
  36. dev_err(dev, "Invalid number of lanes %lu\n", lanes);
  37. return count;
  38. }
  39. dev_info(dev, "Lanes %lu\n", lanes);
  40. csi_dev->hw.num_lanes = lanes;
  41. return count;
  42. }
  43. static ssize_t n_lanes_show(struct device *dev,
  44. struct device_attribute *attr,
  45. char *buf)
  46. {
  47. struct platform_device *pdev = to_platform_device(dev);
  48. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  49. struct dw_csi *csi_dev = &drvdata->csi_dev;
  50. char buffer[10];
  51. snprintf(buffer, 10, "%d\n", csi_dev->hw.num_lanes);
  52. return strlcpy(buf, buffer, PAGE_SIZE);
  53. }
  54. static ssize_t core_reset_show(struct device *dev,
  55. struct device_attribute *attr,
  56. char *buf)
  57. {
  58. struct platform_device *pdev = to_platform_device(dev);
  59. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  60. struct dw_csi *csi_dev = &drvdata->csi_dev;
  61. char buffer[10];
  62. /* Reset Controller and DPHY */
  63. phy_reset(csi_dev->phy);
  64. dw_mipi_csi_reset(csi_dev);
  65. snprintf(buffer, 10, "Reset\n");
  66. return strlcpy(buf, buffer, PAGE_SIZE);
  67. }
  68. static ssize_t data_type_store(struct device *dev,
  69. struct device_attribute *attr,
  70. const char *buf, size_t count)
  71. {
  72. int ret;
  73. unsigned long dt;
  74. struct platform_device *pdev = to_platform_device(dev);
  75. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  76. struct dw_csi *csi_dev = &drvdata->csi_dev;
  77. ret = kstrtoul(buf, 16, &dt);
  78. if (ret < 0)
  79. return ret;
  80. if (dt < 0x18 || dt > 0x2F) {
  81. dev_err(dev, "Invalid data type %lx\n", dt);
  82. return count;
  83. }
  84. dev_info(dev, "Data type 0x%lx\n", dt);
  85. csi_dev->ipi_dt = dt;
  86. dw_mipi_csi_set_ipi_fmt(csi_dev);
  87. return count;
  88. }
  89. static ssize_t data_type_show(struct device *dev,
  90. struct device_attribute *attr,
  91. char *buf)
  92. {
  93. struct platform_device *pdev = to_platform_device(dev);
  94. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  95. struct dw_csi *csi_dev = &drvdata->csi_dev;
  96. char buffer[10];
  97. snprintf(buffer, 10, "%x\n", csi_dev->ipi_dt);
  98. return strlcpy(buf, buffer, PAGE_SIZE);
  99. }
  100. static ssize_t hsa_store(struct device *dev,
  101. struct device_attribute *attr,
  102. const char *buf, size_t count)
  103. {
  104. int ret;
  105. unsigned long hsa;
  106. struct platform_device *pdev = to_platform_device(dev);
  107. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  108. struct dw_csi *csi_dev = &drvdata->csi_dev;
  109. ret = kstrtoul(buf, 16, &hsa);
  110. if (ret < 0)
  111. return ret;
  112. if (hsa > 0xFFF) {
  113. dev_err(dev, "Invalid HSA time %lx\n", hsa);
  114. return count;
  115. }
  116. dev_info(dev, "HSA time 0x%lx\n", hsa);
  117. csi_dev->hw.hsa = hsa;
  118. return count;
  119. }
  120. static ssize_t hsa_show(struct device *dev,
  121. struct device_attribute *attr,
  122. char *buf)
  123. {
  124. struct platform_device *pdev = to_platform_device(dev);
  125. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  126. struct dw_csi *csi_dev = &drvdata->csi_dev;
  127. char buffer[10];
  128. snprintf(buffer, 10, "%x\n", csi_dev->hw.hsa);
  129. return strlcpy(buf, buffer, PAGE_SIZE);
  130. }
  131. static ssize_t hbp_store(struct device *dev,
  132. struct device_attribute *attr,
  133. const char *buf, size_t count)
  134. {
  135. int ret;
  136. unsigned long hbp;
  137. struct platform_device *pdev = to_platform_device(dev);
  138. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  139. struct dw_csi *csi_dev = &drvdata->csi_dev;
  140. ret = kstrtoul(buf, 16, &hbp);
  141. if (ret < 0)
  142. return ret;
  143. if (hbp > 0xFFF) {
  144. dev_err(dev, "Invalid HBP time %lx\n", hbp);
  145. return count;
  146. }
  147. dev_info(dev, "HBP time 0x%lx\n", hbp);
  148. csi_dev->hw.hbp = hbp;
  149. return count;
  150. }
  151. static ssize_t hbp_show(struct device *dev,
  152. struct device_attribute *attr,
  153. char *buf)
  154. {
  155. struct platform_device *pdev = to_platform_device(dev);
  156. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  157. struct dw_csi *csi_dev = &drvdata->csi_dev;
  158. char buffer[10];
  159. snprintf(buffer, 10, "%x\n", csi_dev->hw.hbp);
  160. return strlcpy(buf, buffer, PAGE_SIZE);
  161. }
  162. static ssize_t hsd_store(struct device *dev,
  163. struct device_attribute *attr,
  164. const char *buf, size_t count)
  165. {
  166. int ret;
  167. unsigned long hsd;
  168. struct platform_device *pdev = to_platform_device(dev);
  169. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  170. struct dw_csi *csi_dev = &drvdata->csi_dev;
  171. ret = kstrtoul(buf, 16, &hsd);
  172. if (ret < 0)
  173. return ret;
  174. if (hsd > 0xFFF) {
  175. dev_err(dev, "Invalid HSD time %lx\n", hsd);
  176. return count;
  177. }
  178. dev_info(dev, "HSD time 0x%lx\n", hsd);
  179. csi_dev->hw.hsd = hsd;
  180. return count;
  181. }
  182. static ssize_t hsd_show(struct device *dev,
  183. struct device_attribute *attr,
  184. char *buf)
  185. {
  186. struct platform_device *pdev = to_platform_device(dev);
  187. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  188. struct dw_csi *csi_dev = &drvdata->csi_dev;
  189. char buffer[10];
  190. snprintf(buffer, 10, "%x\n", csi_dev->hw.hsd);
  191. return strlcpy(buf, buffer, PAGE_SIZE);
  192. }
  193. static ssize_t vsa_store(struct device *dev,
  194. struct device_attribute *attr,
  195. const char *buf, size_t count)
  196. {
  197. int ret;
  198. unsigned long vsa;
  199. struct platform_device *pdev = to_platform_device(dev);
  200. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  201. struct dw_csi *csi_dev = &drvdata->csi_dev;
  202. ret = kstrtoul(buf, 16, &vsa);
  203. if (ret < 0)
  204. return ret;
  205. if (vsa > 0x3FF) {
  206. dev_err(dev, "Invalid VSA period %lx\n", vsa);
  207. return count;
  208. }
  209. dev_info(dev, "VSA period 0x%lx\n", vsa);
  210. csi_dev->hw.vsa = vsa;
  211. return count;
  212. }
  213. static ssize_t vsa_show(struct device *dev,
  214. struct device_attribute *attr,
  215. char *buf)
  216. {
  217. struct platform_device *pdev = to_platform_device(dev);
  218. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  219. struct dw_csi *csi_dev = &drvdata->csi_dev;
  220. char buffer[10];
  221. snprintf(buffer, 10, "%x\n", csi_dev->hw.vsa);
  222. return strlcpy(buf, buffer, PAGE_SIZE);
  223. }
  224. static ssize_t vbp_store(struct device *dev,
  225. struct device_attribute *attr,
  226. const char *buf, size_t count)
  227. {
  228. int ret;
  229. unsigned long vbp;
  230. struct platform_device *pdev = to_platform_device(dev);
  231. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  232. struct dw_csi *csi_dev = &drvdata->csi_dev;
  233. ret = kstrtoul(buf, 16, &vbp);
  234. if (ret < 0)
  235. return ret;
  236. if (vbp > 0x2FF) {
  237. dev_err(dev, "Invalid VBP period %lx\n", vbp);
  238. return count;
  239. }
  240. dev_info(dev, "VBP period 0x%lx\n", vbp);
  241. csi_dev->hw.vbp = vbp;
  242. return count;
  243. }
  244. static ssize_t vbp_show(struct device *dev,
  245. struct device_attribute *attr,
  246. char *buf)
  247. {
  248. struct platform_device *pdev = to_platform_device(dev);
  249. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  250. struct dw_csi *csi_dev = &drvdata->csi_dev;
  251. char buffer[10];
  252. snprintf(buffer, 10, "%x\n", csi_dev->hw.vbp);
  253. return strlcpy(buf, buffer, PAGE_SIZE);
  254. }
  255. static ssize_t vfp_store(struct device *dev,
  256. struct device_attribute *attr,
  257. const char *buf, size_t count)
  258. {
  259. int ret;
  260. unsigned long vfp;
  261. struct platform_device *pdev = to_platform_device(dev);
  262. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  263. struct dw_csi *csi_dev = &drvdata->csi_dev;
  264. ret = kstrtoul(buf, 16, &vfp);
  265. if (ret < 0)
  266. return ret;
  267. if (vfp > 0x3ff) {
  268. dev_err(dev, "Invalid VFP period %lx\n", vfp);
  269. return count;
  270. }
  271. dev_info(dev, "VFP period 0x%lx\n", vfp);
  272. csi_dev->hw.vfp = vfp;
  273. return count;
  274. }
  275. static ssize_t vfp_show(struct device *dev,
  276. struct device_attribute *attr,
  277. char *buf)
  278. {
  279. struct platform_device *pdev = to_platform_device(dev);
  280. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  281. struct dw_csi *csi_dev = &drvdata->csi_dev;
  282. char buffer[10];
  283. snprintf(buffer, 10, "%x\n", csi_dev->hw.vfp);
  284. return strlcpy(buf, buffer, PAGE_SIZE);
  285. }
  286. static ssize_t virtual_channel_store(struct device *dev,
  287. struct device_attribute *attr,
  288. const char *buf, size_t count)
  289. {
  290. int ret;
  291. unsigned long virtual_ch;
  292. struct platform_device *pdev = to_platform_device(dev);
  293. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  294. struct dw_csi *csi_dev = &drvdata->csi_dev;
  295. ret = kstrtoul(buf, 10, &virtual_ch);
  296. if (ret < 0)
  297. return ret;
  298. if ((signed int)virtual_ch < 0 || (signed int)virtual_ch > 8) {
  299. dev_err(dev, "Invalid Virtual Channel %lu\n", virtual_ch);
  300. return count;
  301. }
  302. dev_info(dev, "Virtual Channel %lu\n", virtual_ch);
  303. csi_dev->hw.virtual_ch = virtual_ch;
  304. return count;
  305. }
  306. static ssize_t virtual_channel_show(struct device *dev,
  307. struct device_attribute *attr,
  308. char *buf)
  309. {
  310. struct platform_device *pdev = to_platform_device(dev);
  311. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  312. struct dw_csi *csi_dev = &drvdata->csi_dev;
  313. char buffer[10];
  314. snprintf(buffer, 10, "%d\n", csi_dev->hw.virtual_ch);
  315. return strlcpy(buf, buffer, PAGE_SIZE);
  316. }
  317. static ssize_t ipi_color_mode_store(struct device *dev,
  318. struct device_attribute *attr,
  319. const char *buf, size_t count)
  320. {
  321. int ret;
  322. unsigned long ipi_color_mode;
  323. struct platform_device *pdev = to_platform_device(dev);
  324. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  325. struct dw_csi *csi_dev = &drvdata->csi_dev;
  326. ret = kstrtoul(buf, 10, &ipi_color_mode);
  327. if (ret < 0)
  328. return ret;
  329. if ((signed int)ipi_color_mode < 0 || (signed int)ipi_color_mode > 1) {
  330. dev_err(dev,
  331. "Wrong Color Mode %lu, (48 bits -> 0 or 16 bits -> 1\n",
  332. ipi_color_mode);
  333. return count;
  334. }
  335. dev_info(dev, "IPI Color mode %lu\n", ipi_color_mode);
  336. csi_dev->hw.ipi_color_mode = ipi_color_mode;
  337. return count;
  338. }
  339. static ssize_t ipi_color_mode_show(struct device *dev,
  340. struct device_attribute *attr,
  341. char *buf)
  342. {
  343. struct platform_device *pdev = to_platform_device(dev);
  344. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  345. struct dw_csi *csi_dev = &drvdata->csi_dev;
  346. char buffer[10];
  347. snprintf(buffer, 10, "%d\n", csi_dev->hw.ipi_color_mode);
  348. return strlcpy(buf, buffer, PAGE_SIZE);
  349. }
  350. static ssize_t ipi_auto_flush_store(struct device *dev,
  351. struct device_attribute *attr,
  352. const char *buf, size_t count)
  353. {
  354. int ret;
  355. unsigned long ipi_auto_flush;
  356. struct platform_device *pdev = to_platform_device(dev);
  357. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  358. struct dw_csi *csi_dev = &drvdata->csi_dev;
  359. ret = kstrtoul(buf, 10, &ipi_auto_flush);
  360. if (ret < 0)
  361. return ret;
  362. if ((signed int)ipi_auto_flush < 0 || (signed int)ipi_auto_flush > 1) {
  363. dev_err(dev,
  364. "Invalid Auto Flush Mode %lu, (No -> 0 or Yes -> 1\n",
  365. ipi_auto_flush);
  366. return count;
  367. }
  368. dev_info(dev, "IPI Auto Flush %lu\n", ipi_auto_flush);
  369. csi_dev->hw.ipi_auto_flush = ipi_auto_flush;
  370. return count;
  371. }
  372. static ssize_t ipi_auto_flush_show(struct device *dev,
  373. struct device_attribute *attr,
  374. char *buf)
  375. {
  376. struct platform_device *pdev = to_platform_device(dev);
  377. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  378. struct dw_csi *csi_dev = &drvdata->csi_dev;
  379. char buffer[10];
  380. snprintf(buffer, 10, "%d\n", csi_dev->hw.ipi_auto_flush);
  381. return strlcpy(buf, buffer, PAGE_SIZE);
  382. }
  383. static ssize_t ipi_timings_mode_store(struct device *dev,
  384. struct device_attribute *attr,
  385. const char *buf, size_t count)
  386. {
  387. int ret;
  388. unsigned long ipi_mode;
  389. struct platform_device *pdev = to_platform_device(dev);
  390. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  391. struct dw_csi *csi_dev = &drvdata->csi_dev;
  392. ret = kstrtoul(buf, 10, &ipi_mode);
  393. if (ret < 0)
  394. return ret;
  395. if ((signed int)ipi_mode < 0 || (signed int)ipi_mode > 1) {
  396. dev_err(dev,
  397. "Invalid Timing Source %lu (Camera:0|Controller:1)\n",
  398. ipi_mode);
  399. return count;
  400. }
  401. dev_info(dev, "IPI Color mode %lu\n", ipi_mode);
  402. csi_dev->hw.ipi_mode = ipi_mode;
  403. return count;
  404. }
  405. static ssize_t ipi_timings_mode_show(struct device *dev,
  406. struct device_attribute *attr,
  407. char *buf)
  408. {
  409. struct platform_device *pdev = to_platform_device(dev);
  410. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  411. struct dw_csi *csi_dev = &drvdata->csi_dev;
  412. char buffer[10];
  413. snprintf(buffer, 10, "%d\n", csi_dev->hw.ipi_mode);
  414. return strlcpy(buf, buffer, PAGE_SIZE);
  415. }
  416. static ssize_t output_type_store(struct device *dev,
  417. struct device_attribute *attr,
  418. const char *buf, size_t count)
  419. {
  420. int ret;
  421. unsigned long output;
  422. struct platform_device *pdev = to_platform_device(dev);
  423. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  424. struct dw_csi *csi_dev = &drvdata->csi_dev;
  425. ret = kstrtoul(buf, 10, &output);
  426. if (ret < 0)
  427. return ret;
  428. if ((signed int)output < 0 || (signed int)output > 1) {
  429. dev_err(dev,
  430. "Invalid Core output %lu to be used \
  431. (IPI-> 0 or IDI->1 or BOTH- 2\n",
  432. output);
  433. return count;
  434. }
  435. dev_info(dev, "IPI Color mode %lu\n", output);
  436. csi_dev->hw.output = output;
  437. return count;
  438. }
  439. static ssize_t output_type_show(struct device *dev,
  440. struct device_attribute *attr,
  441. char *buf)
  442. {
  443. struct platform_device *pdev = to_platform_device(dev);
  444. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  445. struct dw_csi *csi_dev = &drvdata->csi_dev;
  446. char buffer[10];
  447. snprintf(buffer, 10, "%d\n", csi_dev->hw.output);
  448. return strlcpy(buf, buffer, PAGE_SIZE);
  449. }
  450. static ssize_t csi_power_store(struct device *dev,
  451. struct device_attribute *attr,
  452. const char *buf, size_t count)
  453. {
  454. int ret;
  455. unsigned long on;
  456. struct platform_device *pdev = to_platform_device(dev);
  457. struct bm_csi_drvdata *drvdata = platform_get_drvdata(pdev);
  458. struct dw_csi *csi_dev = &drvdata->csi_dev;
  459. ret = kstrtoul(buf, 10, &on);
  460. if (ret < 0)
  461. return ret;
  462. dw_mipi_csi_s_power(csi_dev, on);
  463. printk("csi set power: %lu\n", on);
  464. return count;
  465. }
  466. static DEVICE_ATTR_RO(core_version);
  467. static DEVICE_ATTR_RO(core_reset);
  468. static DEVICE_ATTR_RW(n_lanes);
  469. static DEVICE_ATTR_RW(data_type);
  470. static DEVICE_ATTR_RW(hsa);
  471. static DEVICE_ATTR_RW(hbp);
  472. static DEVICE_ATTR_RW(hsd);
  473. static DEVICE_ATTR_RW(vsa);
  474. static DEVICE_ATTR_RW(vbp);
  475. static DEVICE_ATTR_RW(vfp);
  476. static DEVICE_ATTR_RW(virtual_channel);
  477. static DEVICE_ATTR_RW(ipi_color_mode);
  478. static DEVICE_ATTR_RW(ipi_auto_flush);
  479. static DEVICE_ATTR_RW(ipi_timings_mode);
  480. static DEVICE_ATTR_RW(output_type);
  481. static DEVICE_ATTR_WO(csi_power);
  482. int dw_csi_create_capabilities_sysfs(struct platform_device *pdev)
  483. {
  484. device_create_file(&pdev->dev, &dev_attr_core_version);
  485. device_create_file(&pdev->dev, &dev_attr_core_reset);
  486. device_create_file(&pdev->dev, &dev_attr_n_lanes);
  487. device_create_file(&pdev->dev, &dev_attr_data_type);
  488. device_create_file(&pdev->dev, &dev_attr_hsa);
  489. device_create_file(&pdev->dev, &dev_attr_hbp);
  490. device_create_file(&pdev->dev, &dev_attr_hsd);
  491. device_create_file(&pdev->dev, &dev_attr_vsa);
  492. device_create_file(&pdev->dev, &dev_attr_vbp);
  493. device_create_file(&pdev->dev, &dev_attr_vfp);
  494. device_create_file(&pdev->dev, &dev_attr_virtual_channel);
  495. device_create_file(&pdev->dev, &dev_attr_ipi_color_mode);
  496. device_create_file(&pdev->dev, &dev_attr_ipi_auto_flush);
  497. device_create_file(&pdev->dev, &dev_attr_ipi_timings_mode);
  498. device_create_file(&pdev->dev, &dev_attr_output_type);
  499. device_create_file(&pdev->dev, &dev_attr_csi_power);
  500. return 0;
  501. }
  502. int dw_csi_remove_capabilities_sysfs(struct platform_device *pdev)
  503. {
  504. device_remove_file(&pdev->dev, &dev_attr_core_version);
  505. device_remove_file(&pdev->dev, &dev_attr_core_reset);
  506. device_remove_file(&pdev->dev, &dev_attr_n_lanes);
  507. device_remove_file(&pdev->dev, &dev_attr_data_type);
  508. device_remove_file(&pdev->dev, &dev_attr_hsa);
  509. device_remove_file(&pdev->dev, &dev_attr_hbp);
  510. device_remove_file(&pdev->dev, &dev_attr_hsd);
  511. device_remove_file(&pdev->dev, &dev_attr_vsa);
  512. device_remove_file(&pdev->dev, &dev_attr_vbp);
  513. device_remove_file(&pdev->dev, &dev_attr_vfp);
  514. device_remove_file(&pdev->dev, &dev_attr_virtual_channel);
  515. device_remove_file(&pdev->dev, &dev_attr_ipi_color_mode);
  516. device_remove_file(&pdev->dev, &dev_attr_ipi_auto_flush);
  517. device_remove_file(&pdev->dev, &dev_attr_ipi_timings_mode);
  518. device_remove_file(&pdev->dev, &dev_attr_output_type);
  519. device_remove_file(&pdev->dev, &dev_attr_csi_power);
  520. return 0;
  521. }