This source file includes following definitions.
- socinfo_machine
- qcom_show_build_id
- qcom_show_pmic_model
- qcom_show_pmic_die_revision
- socinfo_debugfs_init
- socinfo_debugfs_exit
- socinfo_debugfs_init
- socinfo_debugfs_exit
- qcom_socinfo_probe
- qcom_socinfo_remove
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6
7 #include <linux/debugfs.h>
8 #include <linux/err.h>
9 #include <linux/module.h>
10 #include <linux/platform_device.h>
11 #include <linux/random.h>
12 #include <linux/slab.h>
13 #include <linux/soc/qcom/smem.h>
14 #include <linux/string.h>
15 #include <linux/sys_soc.h>
16 #include <linux/types.h>
17
18
19
20
21
22 #define SOCINFO_MAJOR(ver) (((ver) >> 16) & 0xffff)
23 #define SOCINFO_MINOR(ver) ((ver) & 0xffff)
24 #define SOCINFO_VERSION(maj, min) ((((maj) & 0xffff) << 16)|((min) & 0xffff))
25
26 #define SMEM_SOCINFO_BUILD_ID_LENGTH 32
27
28
29
30
31
32 #define SMEM_HW_SW_BUILD_ID 137
33
34 #ifdef CONFIG_DEBUG_FS
35 #define SMEM_IMAGE_VERSION_BLOCKS_COUNT 32
36 #define SMEM_IMAGE_VERSION_SIZE 4096
37 #define SMEM_IMAGE_VERSION_NAME_SIZE 75
38 #define SMEM_IMAGE_VERSION_VARIANT_SIZE 20
39 #define SMEM_IMAGE_VERSION_OEM_SIZE 32
40
41
42
43
44 #define SMEM_IMAGE_TABLE_BOOT_INDEX 0
45 #define SMEM_IMAGE_TABLE_TZ_INDEX 1
46 #define SMEM_IMAGE_TABLE_RPM_INDEX 3
47 #define SMEM_IMAGE_TABLE_APPS_INDEX 10
48 #define SMEM_IMAGE_TABLE_MPSS_INDEX 11
49 #define SMEM_IMAGE_TABLE_ADSP_INDEX 12
50 #define SMEM_IMAGE_TABLE_CNSS_INDEX 13
51 #define SMEM_IMAGE_TABLE_VIDEO_INDEX 14
52 #define SMEM_IMAGE_VERSION_TABLE 469
53
54
55
56
57 static const char *const socinfo_image_names[] = {
58 [SMEM_IMAGE_TABLE_ADSP_INDEX] = "adsp",
59 [SMEM_IMAGE_TABLE_APPS_INDEX] = "apps",
60 [SMEM_IMAGE_TABLE_BOOT_INDEX] = "boot",
61 [SMEM_IMAGE_TABLE_CNSS_INDEX] = "cnss",
62 [SMEM_IMAGE_TABLE_MPSS_INDEX] = "mpss",
63 [SMEM_IMAGE_TABLE_RPM_INDEX] = "rpm",
64 [SMEM_IMAGE_TABLE_TZ_INDEX] = "tz",
65 [SMEM_IMAGE_TABLE_VIDEO_INDEX] = "video",
66 };
67
68 static const char *const pmic_models[] = {
69 [0] = "Unknown PMIC model",
70 [9] = "PM8994",
71 [11] = "PM8916",
72 [13] = "PM8058",
73 [14] = "PM8028",
74 [15] = "PM8901",
75 [16] = "PM8027",
76 [17] = "ISL9519",
77 [18] = "PM8921",
78 [19] = "PM8018",
79 [20] = "PM8015",
80 [21] = "PM8014",
81 [22] = "PM8821",
82 [23] = "PM8038",
83 [24] = "PM8922",
84 [25] = "PM8917",
85 };
86 #endif
87
88
89 struct socinfo {
90 __le32 fmt;
91 __le32 id;
92 __le32 ver;
93 char build_id[SMEM_SOCINFO_BUILD_ID_LENGTH];
94
95 __le32 raw_id;
96 __le32 raw_ver;
97
98 __le32 hw_plat;
99
100 __le32 plat_ver;
101
102 __le32 accessory_chip;
103
104 __le32 hw_plat_subtype;
105
106 __le32 pmic_model;
107 __le32 pmic_die_rev;
108
109 __le32 pmic_model_1;
110 __le32 pmic_die_rev_1;
111 __le32 pmic_model_2;
112 __le32 pmic_die_rev_2;
113
114 __le32 foundry_id;
115
116 __le32 serial_num;
117
118 __le32 num_pmics;
119 __le32 pmic_array_offset;
120
121 __le32 chip_family;
122 __le32 raw_device_family;
123 __le32 raw_device_num;
124 };
125
126 #ifdef CONFIG_DEBUG_FS
127 struct socinfo_params {
128 u32 raw_device_family;
129 u32 hw_plat_subtype;
130 u32 accessory_chip;
131 u32 raw_device_num;
132 u32 chip_family;
133 u32 foundry_id;
134 u32 plat_ver;
135 u32 raw_ver;
136 u32 hw_plat;
137 u32 fmt;
138 };
139
140 struct smem_image_version {
141 char name[SMEM_IMAGE_VERSION_NAME_SIZE];
142 char variant[SMEM_IMAGE_VERSION_VARIANT_SIZE];
143 char pad;
144 char oem[SMEM_IMAGE_VERSION_OEM_SIZE];
145 };
146 #endif
147
148 struct qcom_socinfo {
149 struct soc_device *soc_dev;
150 struct soc_device_attribute attr;
151 #ifdef CONFIG_DEBUG_FS
152 struct dentry *dbg_root;
153 struct socinfo_params info;
154 #endif
155 };
156
157 struct soc_id {
158 unsigned int id;
159 const char *name;
160 };
161
162 static const struct soc_id soc_id[] = {
163 { 87, "MSM8960" },
164 { 109, "APQ8064" },
165 { 122, "MSM8660A" },
166 { 123, "MSM8260A" },
167 { 124, "APQ8060A" },
168 { 126, "MSM8974" },
169 { 130, "MPQ8064" },
170 { 138, "MSM8960AB" },
171 { 139, "APQ8060AB" },
172 { 140, "MSM8260AB" },
173 { 141, "MSM8660AB" },
174 { 178, "APQ8084" },
175 { 184, "APQ8074" },
176 { 185, "MSM8274" },
177 { 186, "MSM8674" },
178 { 194, "MSM8974PRO" },
179 { 206, "MSM8916" },
180 { 208, "APQ8074-AA" },
181 { 209, "APQ8074-AB" },
182 { 210, "APQ8074PRO" },
183 { 211, "MSM8274-AA" },
184 { 212, "MSM8274-AB" },
185 { 213, "MSM8274PRO" },
186 { 214, "MSM8674-AA" },
187 { 215, "MSM8674-AB" },
188 { 216, "MSM8674PRO" },
189 { 217, "MSM8974-AA" },
190 { 218, "MSM8974-AB" },
191 { 246, "MSM8996" },
192 { 247, "APQ8016" },
193 { 248, "MSM8216" },
194 { 249, "MSM8116" },
195 { 250, "MSM8616" },
196 { 291, "APQ8096" },
197 { 305, "MSM8996SG" },
198 { 310, "MSM8996AU" },
199 { 311, "APQ8096AU" },
200 { 312, "APQ8096SG" },
201 };
202
203 static const char *socinfo_machine(struct device *dev, unsigned int id)
204 {
205 int idx;
206
207 for (idx = 0; idx < ARRAY_SIZE(soc_id); idx++) {
208 if (soc_id[idx].id == id)
209 return soc_id[idx].name;
210 }
211
212 return NULL;
213 }
214
215 #ifdef CONFIG_DEBUG_FS
216
217 #define QCOM_OPEN(name, _func) \
218 static int qcom_open_##name(struct inode *inode, struct file *file) \
219 { \
220 return single_open(file, _func, inode->i_private); \
221 } \
222 \
223 static const struct file_operations qcom_ ##name## _ops = { \
224 .open = qcom_open_##name, \
225 .read = seq_read, \
226 .llseek = seq_lseek, \
227 .release = single_release, \
228 }
229
230 #define DEBUGFS_ADD(info, name) \
231 debugfs_create_file(__stringify(name), 0400, \
232 qcom_socinfo->dbg_root, \
233 info, &qcom_ ##name## _ops)
234
235
236 static int qcom_show_build_id(struct seq_file *seq, void *p)
237 {
238 struct socinfo *socinfo = seq->private;
239
240 seq_printf(seq, "%s\n", socinfo->build_id);
241
242 return 0;
243 }
244
245 static int qcom_show_pmic_model(struct seq_file *seq, void *p)
246 {
247 struct socinfo *socinfo = seq->private;
248 int model = SOCINFO_MINOR(le32_to_cpu(socinfo->pmic_model));
249
250 if (model < 0)
251 return -EINVAL;
252
253 seq_printf(seq, "%s\n", pmic_models[model]);
254
255 return 0;
256 }
257
258 static int qcom_show_pmic_die_revision(struct seq_file *seq, void *p)
259 {
260 struct socinfo *socinfo = seq->private;
261
262 seq_printf(seq, "%u.%u\n",
263 SOCINFO_MAJOR(le32_to_cpu(socinfo->pmic_die_rev)),
264 SOCINFO_MINOR(le32_to_cpu(socinfo->pmic_die_rev)));
265
266 return 0;
267 }
268
269 QCOM_OPEN(build_id, qcom_show_build_id);
270 QCOM_OPEN(pmic_model, qcom_show_pmic_model);
271 QCOM_OPEN(pmic_die_rev, qcom_show_pmic_die_revision);
272
273 #define DEFINE_IMAGE_OPS(type) \
274 static int show_image_##type(struct seq_file *seq, void *p) \
275 { \
276 struct smem_image_version *image_version = seq->private; \
277 seq_puts(seq, image_version->type); \
278 seq_puts(seq, "\n"); \
279 return 0; \
280 } \
281 static int open_image_##type(struct inode *inode, struct file *file) \
282 { \
283 return single_open(file, show_image_##type, inode->i_private); \
284 } \
285 \
286 static const struct file_operations qcom_image_##type##_ops = { \
287 .open = open_image_##type, \
288 .read = seq_read, \
289 .llseek = seq_lseek, \
290 .release = single_release, \
291 }
292
293 DEFINE_IMAGE_OPS(name);
294 DEFINE_IMAGE_OPS(variant);
295 DEFINE_IMAGE_OPS(oem);
296
297 static void socinfo_debugfs_init(struct qcom_socinfo *qcom_socinfo,
298 struct socinfo *info)
299 {
300 struct smem_image_version *versions;
301 struct dentry *dentry;
302 size_t size;
303 int i;
304
305 qcom_socinfo->dbg_root = debugfs_create_dir("qcom_socinfo", NULL);
306
307 qcom_socinfo->info.fmt = __le32_to_cpu(info->fmt);
308
309 switch (qcom_socinfo->info.fmt) {
310 case SOCINFO_VERSION(0, 12):
311 qcom_socinfo->info.chip_family =
312 __le32_to_cpu(info->chip_family);
313 qcom_socinfo->info.raw_device_family =
314 __le32_to_cpu(info->raw_device_family);
315 qcom_socinfo->info.raw_device_num =
316 __le32_to_cpu(info->raw_device_num);
317
318 debugfs_create_x32("chip_family", 0400, qcom_socinfo->dbg_root,
319 &qcom_socinfo->info.chip_family);
320 debugfs_create_x32("raw_device_family", 0400,
321 qcom_socinfo->dbg_root,
322 &qcom_socinfo->info.raw_device_family);
323 debugfs_create_x32("raw_device_number", 0400,
324 qcom_socinfo->dbg_root,
325 &qcom_socinfo->info.raw_device_num);
326
327 case SOCINFO_VERSION(0, 11):
328 case SOCINFO_VERSION(0, 10):
329 case SOCINFO_VERSION(0, 9):
330 qcom_socinfo->info.foundry_id = __le32_to_cpu(info->foundry_id);
331
332 debugfs_create_u32("foundry_id", 0400, qcom_socinfo->dbg_root,
333 &qcom_socinfo->info.foundry_id);
334
335 case SOCINFO_VERSION(0, 8):
336 case SOCINFO_VERSION(0, 7):
337 DEBUGFS_ADD(info, pmic_model);
338 DEBUGFS_ADD(info, pmic_die_rev);
339
340 case SOCINFO_VERSION(0, 6):
341 qcom_socinfo->info.hw_plat_subtype =
342 __le32_to_cpu(info->hw_plat_subtype);
343
344 debugfs_create_u32("hardware_platform_subtype", 0400,
345 qcom_socinfo->dbg_root,
346 &qcom_socinfo->info.hw_plat_subtype);
347
348 case SOCINFO_VERSION(0, 5):
349 qcom_socinfo->info.accessory_chip =
350 __le32_to_cpu(info->accessory_chip);
351
352 debugfs_create_u32("accessory_chip", 0400,
353 qcom_socinfo->dbg_root,
354 &qcom_socinfo->info.accessory_chip);
355
356 case SOCINFO_VERSION(0, 4):
357 qcom_socinfo->info.plat_ver = __le32_to_cpu(info->plat_ver);
358
359 debugfs_create_u32("platform_version", 0400,
360 qcom_socinfo->dbg_root,
361 &qcom_socinfo->info.plat_ver);
362
363 case SOCINFO_VERSION(0, 3):
364 qcom_socinfo->info.hw_plat = __le32_to_cpu(info->hw_plat);
365
366 debugfs_create_u32("hardware_platform", 0400,
367 qcom_socinfo->dbg_root,
368 &qcom_socinfo->info.hw_plat);
369
370 case SOCINFO_VERSION(0, 2):
371 qcom_socinfo->info.raw_ver = __le32_to_cpu(info->raw_ver);
372
373 debugfs_create_u32("raw_version", 0400, qcom_socinfo->dbg_root,
374 &qcom_socinfo->info.raw_ver);
375
376 case SOCINFO_VERSION(0, 1):
377 DEBUGFS_ADD(info, build_id);
378 break;
379 }
380
381 versions = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_IMAGE_VERSION_TABLE,
382 &size);
383
384 for (i = 0; i < ARRAY_SIZE(socinfo_image_names); i++) {
385 if (!socinfo_image_names[i])
386 continue;
387
388 dentry = debugfs_create_dir(socinfo_image_names[i],
389 qcom_socinfo->dbg_root);
390 debugfs_create_file("name", 0400, dentry, &versions[i],
391 &qcom_image_name_ops);
392 debugfs_create_file("variant", 0400, dentry, &versions[i],
393 &qcom_image_variant_ops);
394 debugfs_create_file("oem", 0400, dentry, &versions[i],
395 &qcom_image_oem_ops);
396 }
397 }
398
399 static void socinfo_debugfs_exit(struct qcom_socinfo *qcom_socinfo)
400 {
401 debugfs_remove_recursive(qcom_socinfo->dbg_root);
402 }
403 #else
404 static void socinfo_debugfs_init(struct qcom_socinfo *qcom_socinfo,
405 struct socinfo *info)
406 {
407 }
408 static void socinfo_debugfs_exit(struct qcom_socinfo *qcom_socinfo) { }
409 #endif
410
411 static int qcom_socinfo_probe(struct platform_device *pdev)
412 {
413 struct qcom_socinfo *qs;
414 struct socinfo *info;
415 size_t item_size;
416
417 info = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_HW_SW_BUILD_ID,
418 &item_size);
419 if (IS_ERR(info)) {
420 dev_err(&pdev->dev, "Couldn't find socinfo\n");
421 return PTR_ERR(info);
422 }
423
424 qs = devm_kzalloc(&pdev->dev, sizeof(*qs), GFP_KERNEL);
425 if (!qs)
426 return -ENOMEM;
427
428 qs->attr.family = "Snapdragon";
429 qs->attr.machine = socinfo_machine(&pdev->dev,
430 le32_to_cpu(info->id));
431 qs->attr.revision = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%u.%u",
432 SOCINFO_MAJOR(le32_to_cpu(info->ver)),
433 SOCINFO_MINOR(le32_to_cpu(info->ver)));
434 if (offsetof(struct socinfo, serial_num) <= item_size)
435 qs->attr.serial_number = devm_kasprintf(&pdev->dev, GFP_KERNEL,
436 "%u",
437 le32_to_cpu(info->serial_num));
438
439 qs->soc_dev = soc_device_register(&qs->attr);
440 if (IS_ERR(qs->soc_dev))
441 return PTR_ERR(qs->soc_dev);
442
443 socinfo_debugfs_init(qs, info);
444
445
446 add_device_randomness(info, item_size);
447
448 platform_set_drvdata(pdev, qs->soc_dev);
449
450 return 0;
451 }
452
453 static int qcom_socinfo_remove(struct platform_device *pdev)
454 {
455 struct qcom_socinfo *qs = platform_get_drvdata(pdev);
456
457 soc_device_unregister(qs->soc_dev);
458
459 socinfo_debugfs_exit(qs);
460
461 return 0;
462 }
463
464 static struct platform_driver qcom_socinfo_driver = {
465 .probe = qcom_socinfo_probe,
466 .remove = qcom_socinfo_remove,
467 .driver = {
468 .name = "qcom-socinfo",
469 },
470 };
471
472 module_platform_driver(qcom_socinfo_driver);
473
474 MODULE_DESCRIPTION("Qualcomm SoCinfo driver");
475 MODULE_LICENSE("GPL v2");
476 MODULE_ALIAS("platform:qcom-socinfo");