mirror of https://gitee.com/openkylin/linux.git
485 lines
12 KiB
C
485 lines
12 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2009-2017, The Linux Foundation. All rights reserved.
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* Copyright (c) 2017-2019, Linaro Ltd.
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*/
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#include <linux/debugfs.h>
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#include <linux/err.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/random.h>
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#include <linux/slab.h>
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#include <linux/soc/qcom/smem.h>
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#include <linux/string.h>
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#include <linux/sys_soc.h>
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#include <linux/types.h>
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/*
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* SoC version type with major number in the upper 16 bits and minor
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* number in the lower 16 bits.
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*/
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#define SOCINFO_MAJOR(ver) (((ver) >> 16) & 0xffff)
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#define SOCINFO_MINOR(ver) ((ver) & 0xffff)
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#define SOCINFO_VERSION(maj, min) ((((maj) & 0xffff) << 16)|((min) & 0xffff))
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#define SMEM_SOCINFO_BUILD_ID_LENGTH 32
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/*
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* SMEM item id, used to acquire handles to respective
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* SMEM region.
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*/
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#define SMEM_HW_SW_BUILD_ID 137
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#ifdef CONFIG_DEBUG_FS
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#define SMEM_IMAGE_VERSION_BLOCKS_COUNT 32
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#define SMEM_IMAGE_VERSION_SIZE 4096
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#define SMEM_IMAGE_VERSION_NAME_SIZE 75
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#define SMEM_IMAGE_VERSION_VARIANT_SIZE 20
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#define SMEM_IMAGE_VERSION_OEM_SIZE 32
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/*
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* SMEM Image table indices
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*/
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#define SMEM_IMAGE_TABLE_BOOT_INDEX 0
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#define SMEM_IMAGE_TABLE_TZ_INDEX 1
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#define SMEM_IMAGE_TABLE_RPM_INDEX 3
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#define SMEM_IMAGE_TABLE_APPS_INDEX 10
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#define SMEM_IMAGE_TABLE_MPSS_INDEX 11
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#define SMEM_IMAGE_TABLE_ADSP_INDEX 12
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#define SMEM_IMAGE_TABLE_CNSS_INDEX 13
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#define SMEM_IMAGE_TABLE_VIDEO_INDEX 14
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#define SMEM_IMAGE_VERSION_TABLE 469
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/*
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* SMEM Image table names
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*/
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static const char *const socinfo_image_names[] = {
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[SMEM_IMAGE_TABLE_ADSP_INDEX] = "adsp",
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[SMEM_IMAGE_TABLE_APPS_INDEX] = "apps",
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[SMEM_IMAGE_TABLE_BOOT_INDEX] = "boot",
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[SMEM_IMAGE_TABLE_CNSS_INDEX] = "cnss",
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[SMEM_IMAGE_TABLE_MPSS_INDEX] = "mpss",
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[SMEM_IMAGE_TABLE_RPM_INDEX] = "rpm",
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[SMEM_IMAGE_TABLE_TZ_INDEX] = "tz",
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[SMEM_IMAGE_TABLE_VIDEO_INDEX] = "video",
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};
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static const char *const pmic_models[] = {
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[0] = "Unknown PMIC model",
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[9] = "PM8994",
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[11] = "PM8916",
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[13] = "PM8058",
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[14] = "PM8028",
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[15] = "PM8901",
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[16] = "PM8027",
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[17] = "ISL9519",
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[18] = "PM8921",
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[19] = "PM8018",
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[20] = "PM8015",
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[21] = "PM8014",
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[22] = "PM8821",
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[23] = "PM8038",
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[24] = "PM8922",
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[25] = "PM8917",
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};
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#endif /* CONFIG_DEBUG_FS */
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/* Socinfo SMEM item structure */
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struct socinfo {
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__le32 fmt;
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__le32 id;
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__le32 ver;
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char build_id[SMEM_SOCINFO_BUILD_ID_LENGTH];
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/* Version 2 */
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__le32 raw_id;
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__le32 raw_ver;
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/* Version 3 */
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__le32 hw_plat;
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/* Version 4 */
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__le32 plat_ver;
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/* Version 5 */
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__le32 accessory_chip;
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/* Version 6 */
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__le32 hw_plat_subtype;
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/* Version 7 */
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__le32 pmic_model;
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__le32 pmic_die_rev;
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/* Version 8 */
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__le32 pmic_model_1;
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__le32 pmic_die_rev_1;
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__le32 pmic_model_2;
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__le32 pmic_die_rev_2;
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/* Version 9 */
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__le32 foundry_id;
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/* Version 10 */
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__le32 serial_num;
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/* Version 11 */
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__le32 num_pmics;
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__le32 pmic_array_offset;
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/* Version 12 */
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__le32 chip_family;
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__le32 raw_device_family;
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__le32 raw_device_num;
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};
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#ifdef CONFIG_DEBUG_FS
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struct socinfo_params {
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u32 raw_device_family;
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u32 hw_plat_subtype;
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u32 accessory_chip;
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u32 raw_device_num;
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u32 chip_family;
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u32 foundry_id;
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u32 plat_ver;
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u32 raw_ver;
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u32 hw_plat;
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u32 fmt;
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};
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struct smem_image_version {
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char name[SMEM_IMAGE_VERSION_NAME_SIZE];
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char variant[SMEM_IMAGE_VERSION_VARIANT_SIZE];
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char pad;
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char oem[SMEM_IMAGE_VERSION_OEM_SIZE];
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};
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#endif /* CONFIG_DEBUG_FS */
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struct qcom_socinfo {
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struct soc_device *soc_dev;
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struct soc_device_attribute attr;
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#ifdef CONFIG_DEBUG_FS
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struct dentry *dbg_root;
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struct socinfo_params info;
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#endif /* CONFIG_DEBUG_FS */
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};
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struct soc_id {
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unsigned int id;
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const char *name;
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};
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static const struct soc_id soc_id[] = {
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{ 87, "MSM8960" },
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{ 109, "APQ8064" },
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{ 122, "MSM8660A" },
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{ 123, "MSM8260A" },
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{ 124, "APQ8060A" },
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{ 126, "MSM8974" },
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{ 130, "MPQ8064" },
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{ 138, "MSM8960AB" },
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{ 139, "APQ8060AB" },
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{ 140, "MSM8260AB" },
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{ 141, "MSM8660AB" },
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{ 178, "APQ8084" },
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{ 184, "APQ8074" },
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{ 185, "MSM8274" },
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{ 186, "MSM8674" },
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{ 194, "MSM8974PRO" },
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{ 206, "MSM8916" },
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{ 208, "APQ8074-AA" },
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{ 209, "APQ8074-AB" },
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{ 210, "APQ8074PRO" },
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{ 211, "MSM8274-AA" },
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{ 212, "MSM8274-AB" },
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{ 213, "MSM8274PRO" },
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{ 214, "MSM8674-AA" },
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{ 215, "MSM8674-AB" },
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{ 216, "MSM8674PRO" },
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{ 217, "MSM8974-AA" },
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{ 218, "MSM8974-AB" },
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{ 233, "MSM8936" },
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{ 239, "MSM8939" },
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{ 240, "APQ8036" },
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{ 241, "APQ8039" },
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{ 246, "MSM8996" },
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{ 247, "APQ8016" },
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{ 248, "MSM8216" },
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{ 249, "MSM8116" },
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{ 250, "MSM8616" },
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{ 291, "APQ8096" },
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{ 305, "MSM8996SG" },
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{ 310, "MSM8996AU" },
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{ 311, "APQ8096AU" },
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{ 312, "APQ8096SG" },
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{ 321, "SDM845" },
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{ 341, "SDA845" },
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};
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static const char *socinfo_machine(struct device *dev, unsigned int id)
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{
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int idx;
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for (idx = 0; idx < ARRAY_SIZE(soc_id); idx++) {
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if (soc_id[idx].id == id)
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return soc_id[idx].name;
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}
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return NULL;
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}
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#ifdef CONFIG_DEBUG_FS
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#define QCOM_OPEN(name, _func) \
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static int qcom_open_##name(struct inode *inode, struct file *file) \
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{ \
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return single_open(file, _func, inode->i_private); \
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} \
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\
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static const struct file_operations qcom_ ##name## _ops = { \
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.open = qcom_open_##name, \
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.read = seq_read, \
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.llseek = seq_lseek, \
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.release = single_release, \
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}
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#define DEBUGFS_ADD(info, name) \
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debugfs_create_file(__stringify(name), 0400, \
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qcom_socinfo->dbg_root, \
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info, &qcom_ ##name## _ops)
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static int qcom_show_build_id(struct seq_file *seq, void *p)
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{
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struct socinfo *socinfo = seq->private;
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seq_printf(seq, "%s\n", socinfo->build_id);
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return 0;
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}
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static int qcom_show_pmic_model(struct seq_file *seq, void *p)
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{
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struct socinfo *socinfo = seq->private;
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int model = SOCINFO_MINOR(le32_to_cpu(socinfo->pmic_model));
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if (model < 0)
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return -EINVAL;
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seq_printf(seq, "%s\n", pmic_models[model]);
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return 0;
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}
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static int qcom_show_pmic_die_revision(struct seq_file *seq, void *p)
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{
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struct socinfo *socinfo = seq->private;
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seq_printf(seq, "%u.%u\n",
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SOCINFO_MAJOR(le32_to_cpu(socinfo->pmic_die_rev)),
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SOCINFO_MINOR(le32_to_cpu(socinfo->pmic_die_rev)));
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return 0;
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}
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QCOM_OPEN(build_id, qcom_show_build_id);
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QCOM_OPEN(pmic_model, qcom_show_pmic_model);
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QCOM_OPEN(pmic_die_rev, qcom_show_pmic_die_revision);
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#define DEFINE_IMAGE_OPS(type) \
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static int show_image_##type(struct seq_file *seq, void *p) \
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{ \
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struct smem_image_version *image_version = seq->private; \
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seq_puts(seq, image_version->type); \
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seq_putc(seq, '\n'); \
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return 0; \
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} \
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static int open_image_##type(struct inode *inode, struct file *file) \
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{ \
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return single_open(file, show_image_##type, inode->i_private); \
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} \
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\
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static const struct file_operations qcom_image_##type##_ops = { \
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.open = open_image_##type, \
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.read = seq_read, \
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.llseek = seq_lseek, \
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.release = single_release, \
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}
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DEFINE_IMAGE_OPS(name);
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DEFINE_IMAGE_OPS(variant);
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DEFINE_IMAGE_OPS(oem);
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static void socinfo_debugfs_init(struct qcom_socinfo *qcom_socinfo,
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struct socinfo *info)
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{
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struct smem_image_version *versions;
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struct dentry *dentry;
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size_t size;
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int i;
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qcom_socinfo->dbg_root = debugfs_create_dir("qcom_socinfo", NULL);
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qcom_socinfo->info.fmt = __le32_to_cpu(info->fmt);
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switch (qcom_socinfo->info.fmt) {
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case SOCINFO_VERSION(0, 12):
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qcom_socinfo->info.chip_family =
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__le32_to_cpu(info->chip_family);
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qcom_socinfo->info.raw_device_family =
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__le32_to_cpu(info->raw_device_family);
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qcom_socinfo->info.raw_device_num =
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__le32_to_cpu(info->raw_device_num);
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debugfs_create_x32("chip_family", 0400, qcom_socinfo->dbg_root,
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&qcom_socinfo->info.chip_family);
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debugfs_create_x32("raw_device_family", 0400,
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qcom_socinfo->dbg_root,
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&qcom_socinfo->info.raw_device_family);
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debugfs_create_x32("raw_device_number", 0400,
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qcom_socinfo->dbg_root,
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&qcom_socinfo->info.raw_device_num);
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/* Fall through */
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case SOCINFO_VERSION(0, 11):
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case SOCINFO_VERSION(0, 10):
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case SOCINFO_VERSION(0, 9):
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qcom_socinfo->info.foundry_id = __le32_to_cpu(info->foundry_id);
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debugfs_create_u32("foundry_id", 0400, qcom_socinfo->dbg_root,
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&qcom_socinfo->info.foundry_id);
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/* Fall through */
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case SOCINFO_VERSION(0, 8):
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case SOCINFO_VERSION(0, 7):
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DEBUGFS_ADD(info, pmic_model);
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DEBUGFS_ADD(info, pmic_die_rev);
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/* Fall through */
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case SOCINFO_VERSION(0, 6):
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qcom_socinfo->info.hw_plat_subtype =
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__le32_to_cpu(info->hw_plat_subtype);
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debugfs_create_u32("hardware_platform_subtype", 0400,
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qcom_socinfo->dbg_root,
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&qcom_socinfo->info.hw_plat_subtype);
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/* Fall through */
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case SOCINFO_VERSION(0, 5):
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qcom_socinfo->info.accessory_chip =
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__le32_to_cpu(info->accessory_chip);
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debugfs_create_u32("accessory_chip", 0400,
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qcom_socinfo->dbg_root,
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&qcom_socinfo->info.accessory_chip);
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/* Fall through */
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case SOCINFO_VERSION(0, 4):
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qcom_socinfo->info.plat_ver = __le32_to_cpu(info->plat_ver);
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debugfs_create_u32("platform_version", 0400,
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qcom_socinfo->dbg_root,
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&qcom_socinfo->info.plat_ver);
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/* Fall through */
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case SOCINFO_VERSION(0, 3):
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qcom_socinfo->info.hw_plat = __le32_to_cpu(info->hw_plat);
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debugfs_create_u32("hardware_platform", 0400,
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qcom_socinfo->dbg_root,
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&qcom_socinfo->info.hw_plat);
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/* Fall through */
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case SOCINFO_VERSION(0, 2):
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qcom_socinfo->info.raw_ver = __le32_to_cpu(info->raw_ver);
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debugfs_create_u32("raw_version", 0400, qcom_socinfo->dbg_root,
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&qcom_socinfo->info.raw_ver);
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/* Fall through */
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case SOCINFO_VERSION(0, 1):
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DEBUGFS_ADD(info, build_id);
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break;
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}
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versions = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_IMAGE_VERSION_TABLE,
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&size);
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for (i = 0; i < ARRAY_SIZE(socinfo_image_names); i++) {
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if (!socinfo_image_names[i])
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continue;
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dentry = debugfs_create_dir(socinfo_image_names[i],
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qcom_socinfo->dbg_root);
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debugfs_create_file("name", 0400, dentry, &versions[i],
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&qcom_image_name_ops);
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debugfs_create_file("variant", 0400, dentry, &versions[i],
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&qcom_image_variant_ops);
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debugfs_create_file("oem", 0400, dentry, &versions[i],
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&qcom_image_oem_ops);
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}
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}
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static void socinfo_debugfs_exit(struct qcom_socinfo *qcom_socinfo)
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{
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debugfs_remove_recursive(qcom_socinfo->dbg_root);
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}
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#else
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static void socinfo_debugfs_init(struct qcom_socinfo *qcom_socinfo,
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struct socinfo *info)
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{
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}
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static void socinfo_debugfs_exit(struct qcom_socinfo *qcom_socinfo) { }
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#endif /* CONFIG_DEBUG_FS */
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static int qcom_socinfo_probe(struct platform_device *pdev)
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{
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struct qcom_socinfo *qs;
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struct socinfo *info;
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size_t item_size;
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info = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_HW_SW_BUILD_ID,
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&item_size);
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if (IS_ERR(info)) {
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dev_err(&pdev->dev, "Couldn't find socinfo\n");
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return PTR_ERR(info);
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}
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qs = devm_kzalloc(&pdev->dev, sizeof(*qs), GFP_KERNEL);
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if (!qs)
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return -ENOMEM;
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qs->attr.family = "Snapdragon";
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qs->attr.machine = socinfo_machine(&pdev->dev,
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le32_to_cpu(info->id));
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qs->attr.soc_id = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%u",
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le32_to_cpu(info->id));
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qs->attr.revision = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%u.%u",
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SOCINFO_MAJOR(le32_to_cpu(info->ver)),
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SOCINFO_MINOR(le32_to_cpu(info->ver)));
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if (offsetof(struct socinfo, serial_num) <= item_size)
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qs->attr.serial_number = devm_kasprintf(&pdev->dev, GFP_KERNEL,
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"%u",
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le32_to_cpu(info->serial_num));
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qs->soc_dev = soc_device_register(&qs->attr);
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if (IS_ERR(qs->soc_dev))
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return PTR_ERR(qs->soc_dev);
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socinfo_debugfs_init(qs, info);
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/* Feed the soc specific unique data into entropy pool */
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add_device_randomness(info, item_size);
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platform_set_drvdata(pdev, qs->soc_dev);
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return 0;
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}
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static int qcom_socinfo_remove(struct platform_device *pdev)
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{
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struct qcom_socinfo *qs = platform_get_drvdata(pdev);
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soc_device_unregister(qs->soc_dev);
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socinfo_debugfs_exit(qs);
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return 0;
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}
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static struct platform_driver qcom_socinfo_driver = {
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.probe = qcom_socinfo_probe,
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.remove = qcom_socinfo_remove,
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.driver = {
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.name = "qcom-socinfo",
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},
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};
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module_platform_driver(qcom_socinfo_driver);
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MODULE_DESCRIPTION("Qualcomm SoCinfo driver");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:qcom-socinfo");
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