The SoC info driver provides information such as Chip ID, Chip family, serial number and other such details about Qualcomm SoCs. Signed-off-by: Imran Khan <kimran@xxxxxxxxxxxxxx> --- v3 --> v4: - Corrected makefile so that smem and socinfo are treated as one module - Moved the code snippet to get socinfo smem item into socinfo.c - Removed redundant use of socinfo major version as it is always zero - Removed unused enums - Removed redundant indirections - Use image_version object to store information about each entry in the smem image table - Replaced usage of snprintf with sprintf and scnprintf - Get the address of image version table at the beginning and setup image version attributes only if image version table is available - Do the same for platform_subtype - Make different type of image version objects read only or readable/ writable depending on their types. For example apps image attributes can be modified via sysfs but the same can't be done for modem image - Show PMIC model in a human readable form rather than a numeric number - Avoid using table in single sysfs entry - Removed checkpatch warnings about S_IRUGO v2 --> v3: - Add support to toss soc information data into entropy pool - Since socinfo is rolled into smem driver, compile the relevant portion of socinfo driver with smem driver v1 --> v2: - Removed inclusion of system_misc.h - merged socinfo.h into socinfo.c - made platform type and subtype arrays static - replaced uint32_t with u32 - made functions static to avoid exposing vendor specific interface - Replaced usage of IS_ERR_OR_NULL with IS_ERR. - Remove raw-id attribute usage as human readable soc-id will suffice here - Avoid using a separate platform driver for socinfo by rolling it into smem driver itself. The sysfs setup is being done in a separate file (socinfo.c) - Replaced macro BUILD_ID_LENGTH with SMEM_SOCINFO_BUILD_ID_LENGTH. - For failure cases where socinfo can not be read use a single dummy socinfo with error values. - Removed usage of early_machine_is_xxx. drivers/soc/qcom/Kconfig | 1 + drivers/soc/qcom/Makefile | 3 +- drivers/soc/qcom/smem.c | 5 + drivers/soc/qcom/socinfo.c | 1112 ++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 1120 insertions(+), 1 deletion(-) create mode 100644 drivers/soc/qcom/socinfo.c diff --git a/drivers/soc/qcom/Kconfig b/drivers/soc/qcom/Kconfig index 461b387..f89d34d 100644 --- a/drivers/soc/qcom/Kconfig +++ b/drivers/soc/qcom/Kconfig @@ -24,6 +24,7 @@ config QCOM_SMEM tristate "Qualcomm Shared Memory Manager (SMEM)" depends on ARCH_QCOM depends on HWSPINLOCK + select SOC_BUS help Say y here to enable support for the Qualcomm Shared Memory Manager. The driver provides an interface to items in a heap shared among all diff --git a/drivers/soc/qcom/Makefile b/drivers/soc/qcom/Makefile index fdd664e..438efec 100644 --- a/drivers/soc/qcom/Makefile +++ b/drivers/soc/qcom/Makefile @@ -2,7 +2,8 @@ obj-$(CONFIG_QCOM_GSBI) += qcom_gsbi.o obj-$(CONFIG_QCOM_PM) += spm.o obj-$(CONFIG_QCOM_SMD) += smd.o obj-$(CONFIG_QCOM_SMD_RPM) += smd-rpm.o -obj-$(CONFIG_QCOM_SMEM) += smem.o +obj-$(CONFIG_QCOM_SMEM) += qcom_smem.o +qcom_smem-y := smem.o socinfo.o obj-$(CONFIG_QCOM_SMEM_STATE) += smem_state.o obj-$(CONFIG_QCOM_SMP2P) += smp2p.o obj-$(CONFIG_QCOM_SMSM) += smsm.o diff --git a/drivers/soc/qcom/smem.c b/drivers/soc/qcom/smem.c index 18ec52f..a57acfb0 100644 --- a/drivers/soc/qcom/smem.c +++ b/drivers/soc/qcom/smem.c @@ -85,6 +85,9 @@ /* Max number of processors/hosts in a system */ #define SMEM_HOST_COUNT 9 + +extern int qcom_socinfo_init(struct platform_device *pdev); + /** * struct smem_proc_comm - proc_comm communication struct (legacy) * @command: current command to be executed @@ -751,6 +754,8 @@ static int qcom_smem_probe(struct platform_device *pdev) __smem = smem; + qcom_socinfo_init(pdev); + return 0; } diff --git a/drivers/soc/qcom/socinfo.c b/drivers/soc/qcom/socinfo.c new file mode 100644 index 0000000..314dbdb --- /dev/null +++ b/drivers/soc/qcom/socinfo.c @@ -0,0 +1,1112 @@ +/* + * Copyright (c) 2009-2016, The Linux Foundation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/export.h> +#include <linux/module.h> +#include <linux/err.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/sys_soc.h> +#include <linux/slab.h> +#include <linux/stat.h> +#include <linux/string.h> +#include <linux/types.h> +#include <linux/random.h> +#include <linux/soc/qcom/smem.h> + +#define PMIC_MODEL_UNKNOWN 0 +#define HW_PLATFORM_QRD 11 +#define PLATFORM_SUBTYPE_QRD_INVALID 6 +#define PLATFORM_SUBTYPE_INVALID 4 +/* + * SOC version type with major number in the upper 16 bits and minor + * number in the lower 16 bits. For example: + * 1.0 -> 0x00010000 + * 2.3 -> 0x00020003 + */ +#define SOC_VERSION_MAJOR(ver) (((ver) & 0xffff0000) >> 16) +#define SOC_VERSION_MINOR(ver) ((ver) & 0x0000ffff) +#define SOCINFO_FORMAT(x) (x) +#define SOCINFO_VERSION_MAJOR SOC_VERSION_MAJOR +#define SOCINFO_VERSION_MINOR SOC_VERSION_MINOR + +#define SMEM_SOCINFO_BUILD_ID_LENGTH 32 +#define SMEM_IMAGE_VERSION_BLOCKS_COUNT 32 +#define SMEM_IMAGE_VERSION_SIZE 4096 +#define SMEM_IMAGE_VERSION_NAME_SIZE 75 +#define SMEM_IMAGE_VERSION_VARIANT_SIZE 20 +#define SMEM_IMAGE_VERSION_OEM_SIZE 32 +#define SMEM_IMAGE_VERSION_PARTITION_APPS 10 + +/* + * Shared memory identifiers, used to acquire handles to respective memory + * region. + */ +#define SMEM_IMAGE_VERSION_TABLE 469 + +/* + * Shared memory identifiers, used to acquire handles to respective memory + * region. + */ +#define SMEM_HW_SW_BUILD_ID 137 + +/* + * SMEM Image table indices + */ +enum smem_image_table_index { + SMEM_IMAGE_TABLE_BOOT_INDEX = 0, + SMEM_IMAGE_TABLE_TZ_INDEX, + SMEM_IMAGE_TABLE_RPM_INDEX = 3, + SMEM_IMAGE_TABLE_APPS_INDEX = 10, + SMEM_IMAGE_TABLE_MPSS_INDEX, + SMEM_IMAGE_TABLE_ADSP_INDEX, + SMEM_IMAGE_TABLE_CNSS_INDEX, + SMEM_IMAGE_TABLE_VIDEO_INDEX +}; + +#define SMEM_IMAGE_TABLE_ATTR(type, index) \ +static ssize_t \ +qcom_get_##type##_image_version(struct device *dev, \ + struct device_attribute *attr, \ + char *buf) \ +{ \ + return qcom_get_image_version(index, buf); \ +} \ +static ssize_t \ +qcom_set_##type##_image_version(struct device *dev, \ + struct device_attribute *attr, \ + const char *buf, \ + size_t count) \ +{ \ + return qcom_set_image_version(index, buf); \ +} \ +static ssize_t \ +qcom_get_##type##_image_variant(struct device *dev, \ + struct device_attribute *attr, \ + char *buf) \ +{ \ + return qcom_get_image_variant(index, buf); \ +} \ +static ssize_t \ +qcom_set_##type##_image_variant(struct device *dev, \ + struct device_attribute *attr, \ + const char *buf, \ + size_t count) \ +{ \ + return qcom_set_image_variant(index, buf); \ +} \ +static ssize_t \ +qcom_get_##type##_image_crm_version(struct device *dev, \ + struct device_attribute *attr, \ + char *buf) \ +{ \ + return qcom_get_image_crm_version(index, buf); \ +} \ +static ssize_t \ +qcom_set_##type##_image_crm_version(struct device *dev, \ + struct device_attribute *attr, \ + const char *buf, \ + size_t count) \ +{ \ + return qcom_set_image_crm_version(index, buf); \ +} \ +DEVICE_ATTR(type##_image_version, 0644, qcom_get_##type##_image_version,\ + qcom_set_##type##_image_version); \ +DEVICE_ATTR(type##_image_variant, 0644, qcom_get_##type##_image_variant,\ + qcom_set_##type##_image_variant); \ +DEVICE_ATTR(type##_image_crm_version, 0644, \ + qcom_get_##type##_image_crm_version, \ + qcom_set_##type##_image_crm_version); \ +static struct attribute *type##_image_attrs[] = { \ + &dev_attr_##type##_image_version.attr, \ + &dev_attr_##type##_image_variant.attr, \ + &dev_attr_##type##_image_crm_version.attr, \ + NULL, \ +}; \ +static struct attribute_group type##_image_attr_group = { \ + .attrs = type##_image_attrs, \ +} + +#define SMEM_IMAGE_TABLE_RO_ATTR(type, index) \ +static ssize_t \ +qcom_get_##type##_image_version(struct device *dev, \ + struct device_attribute *attr, \ + char *buf) \ +{ \ + return qcom_get_image_version(index, buf); \ +} \ +static ssize_t \ +qcom_get_##type##_image_variant(struct device *dev, \ + struct device_attribute *attr, \ + char *buf) \ +{ \ + return qcom_get_image_variant(index, buf); \ +} \ +static ssize_t \ +qcom_get_##type##_image_crm_version(struct device *dev, \ + struct device_attribute *attr, \ + char *buf) \ +{ \ + return qcom_get_image_crm_version(index, buf); \ +} \ +DEVICE_ATTR(type##_image_version, 0444, qcom_get_##type##_image_version,\ + NULL); \ +DEVICE_ATTR(type##_image_variant, 0444, qcom_get_##type##_image_variant,\ + NULL); \ +DEVICE_ATTR(type##_image_crm_version, 0444, \ + qcom_get_##type##_image_crm_version, \ + NULL); \ +static struct attribute *type##_image_attrs[] = { \ + &dev_attr_##type##_image_version.attr, \ + &dev_attr_##type##_image_variant.attr, \ + &dev_attr_##type##_image_crm_version.attr, \ + NULL, \ + }; \ +static struct attribute_group type##_image_attr_group = { \ + .attrs = type##_image_attrs, \ +} + +/* + * Qcom SoC types + */ +enum qcom_cpu { + MSM_CPU_UNKNOWN = 0, + MSM_CPU_8960, + MSM_CPU_8960AB, + MSM_CPU_8064, + MSM_CPU_8974, + MSM_CPU_8974PRO_AA, + MSM_CPU_8974PRO_AB, + MSM_CPU_8974PRO_AC, + MSM_CPU_8916, + MSM_CPU_8084, + MSM_CPU_8996 +}; + +struct qcom_soc_info { + enum qcom_cpu generic_soc_type; + char *soc_id_string; +}; + +/* Hardware platform types */ +static const char *hw_platform[] = { + [0] = "Unknown", + [1] = "Surf", + [2] = "FFA", + [3] = "Fluid", + [4] = "SVLTE_FFA", + [5] = "SLVTE_SURF", + [7] = "MDM_MTP_NO_DISPLAY", + [8] = "MTP", + [9] = "Liquid", + [10] = "Dragon", + [11] = "QRD", + [13] = "HRD", + [14] = "DTV", + [21] = "RCM", + [23] = "STP", + [24] = "SBC", +}; + +static const char *qrd_hw_platform_subtype[] = { + [0] = "QRD", + [1] = "SKUAA", + [2] = "SKUF", + [3] = "SKUAB", + [5] = "SKUG", + [6] = "INVALID", +}; + +static const char *hw_platform_subtype[] = { + "Unknown", "charm", "strange", "strange_2a", "Invalid", +}; + +static const char *pmic_model[] = { + [0] = "Unknown PMIC model", + [13] = "PMIC model: PM8058", + [14] = "PMIC model: PM8028", + [15] = "PMIC model: PM8901", + [16] = "PMIC model: PM8027", + [17] = "PMIC model: ISL9519", + [18] = "PMIC model: PM8921", + [19] = "PMIC model: PM8018", + [20] = "PMIC model: PM8015", + [21] = "PMIC model: PM8014", + [22] = "PMIC model: PM8821", + [23] = "PMIC model: PM8038", + [24] = "PMIC model: PM8922", + [25] = "PMIC model: PM8917", +}; + +struct smem_image_version { + char name[SMEM_IMAGE_VERSION_NAME_SIZE]; + char variant[SMEM_IMAGE_VERSION_VARIANT_SIZE]; + char pad; + char oem[SMEM_IMAGE_VERSION_OEM_SIZE]; +}; + +/* Used to parse shared memory. Must match the modem. */ +struct socinfo_v0_1 { + u32 format; + u32 id; + u32 version; + char build_id[SMEM_SOCINFO_BUILD_ID_LENGTH]; +}; + +struct socinfo_v0_2 { + struct socinfo_v0_1 v0_1; + u32 raw_version; +}; + +struct socinfo_v0_3 { + struct socinfo_v0_2 v0_2; + u32 hw_platform; +}; + +struct socinfo_v0_4 { + struct socinfo_v0_3 v0_3; + u32 platform_version; +}; + +struct socinfo_v0_5 { + struct socinfo_v0_4 v0_4; + u32 accessory_chip; +}; + +struct socinfo_v0_6 { + struct socinfo_v0_5 v0_5; + u32 hw_platform_subtype; +}; + +struct socinfo_v0_7 { + struct socinfo_v0_6 v0_6; + u32 pmic_model; + u32 pmic_die_revision; +}; + +struct socinfo_v0_8 { + struct socinfo_v0_7 v0_7; + u32 pmic_model_1; + u32 pmic_die_revision_1; + u32 pmic_model_2; + u32 pmic_die_revision_2; +}; + +struct socinfo_v0_9 { + struct socinfo_v0_8 v0_8; + u32 foundry_id; +}; + +struct socinfo_v0_10 { + struct socinfo_v0_9 v0_9; + u32 serial_number; +}; + +struct socinfo_v0_11 { + struct socinfo_v0_10 v0_10; + u32 num_pmics; + u32 pmic_array_offset; +}; + +struct socinfo_v0_12 { + struct socinfo_v0_11 v0_11; + u32 chip_family; + u32 raw_device_family; + u32 raw_device_number; +}; + +static union { + struct socinfo_v0_1 v0_1; + struct socinfo_v0_2 v0_2; + struct socinfo_v0_3 v0_3; + struct socinfo_v0_4 v0_4; + struct socinfo_v0_5 v0_5; + struct socinfo_v0_6 v0_6; + struct socinfo_v0_7 v0_7; + struct socinfo_v0_8 v0_8; + struct socinfo_v0_9 v0_9; + struct socinfo_v0_10 v0_10; + struct socinfo_v0_11 v0_11; + struct socinfo_v0_12 v0_12; +} *socinfo; + +static struct smem_image_version *smem_image_version; +static bool smem_img_tbl_avlbl = true; +static bool hw_subtype_valid = true; +static u32 hw_subtype; + + +/* max socinfo format version supported */ +#define MAX_SOCINFO_FORMAT SOCINFO_FORMAT(12) + +static struct qcom_soc_info cpu_of_id[] = { + + [0] = {MSM_CPU_UNKNOWN, "Unknown CPU"}, + + /* 8x60 IDs */ + [87] = {MSM_CPU_8960, "MSM8960"}, + + /* 8x64 IDs */ + [109] = {MSM_CPU_8064, "APQ8064"}, + [130] = {MSM_CPU_8064, "MPQ8064"}, + + /* 8x60A IDs */ + [122] = {MSM_CPU_8960, "MSM8660A"}, + [123] = {MSM_CPU_8960, "MSM8260A"}, + [124] = {MSM_CPU_8960, "APQ8060A"}, + + /* 8x74 IDs */ + [126] = {MSM_CPU_8974, "MSM8974"}, + [184] = {MSM_CPU_8974, "APQ8074"}, + [185] = {MSM_CPU_8974, "MSM8274"}, + [186] = {MSM_CPU_8974, "MSM8674"}, + + /* 8x74AA IDs */ + [208] = {MSM_CPU_8974PRO_AA, "APQ8074-AA"}, + [211] = {MSM_CPU_8974PRO_AA, "MSM8274-AA"}, + [214] = {MSM_CPU_8974PRO_AA, "MSM8674-AA"}, + [217] = {MSM_CPU_8974PRO_AA, "MSM8974-AA"}, + + /* 8x74AB IDs */ + [209] = {MSM_CPU_8974PRO_AB, "APQ8074-AB"}, + [212] = {MSM_CPU_8974PRO_AB, "MSM8274-AB"}, + [215] = {MSM_CPU_8974PRO_AB, "MSM8674-AB"}, + [218] = {MSM_CPU_8974PRO_AB, "MSM8974-AB"}, + + /* 8x74AC IDs */ + [194] = {MSM_CPU_8974PRO_AC, "MSM8974PRO"}, + [210] = {MSM_CPU_8974PRO_AC, "APQ8074PRO"}, + [213] = {MSM_CPU_8974PRO_AC, "MSM8274PRO"}, + [216] = {MSM_CPU_8974PRO_AC, "MSM8674PRO"}, + + /* 8x60AB IDs */ + [138] = {MSM_CPU_8960AB, "MSM8960AB"}, + [139] = {MSM_CPU_8960AB, "APQ8060AB"}, + [140] = {MSM_CPU_8960AB, "MSM8260AB"}, + [141] = {MSM_CPU_8960AB, "MSM8660AB"}, + + /* 8x84 IDs */ + [178] = {MSM_CPU_8084, "APQ8084"}, + + /* 8x16 IDs */ + [206] = {MSM_CPU_8916, "MSM8916"}, + [247] = {MSM_CPU_8916, "APQ8016"}, + [248] = {MSM_CPU_8916, "MSM8216"}, + [249] = {MSM_CPU_8916, "MSM8116"}, + [250] = {MSM_CPU_8916, "MSM8616"}, + + /* 8x96 IDs */ + [246] = {MSM_CPU_8996, "MSM8996"}, + [310] = {MSM_CPU_8996, "MSM8996AU"}, + [311] = {MSM_CPU_8996, "APQ8096AU"}, + [291] = {MSM_CPU_8996, "APQ8096"}, + [305] = {MSM_CPU_8996, "MSM8996SG"}, + [312] = {MSM_CPU_8996, "APQ8096SG"}, + + /* + * Uninitialized IDs are not known to run Linux. + * MSM_CPU_UNKNOWN is set to 0 to ensure these IDs are + * considered as unknown CPU. + */ +}; + +static u32 socinfo_format; + +static u32 socinfo_get_id(void); + +/* socinfo: sysfs functions */ + +static char *socinfo_get_id_string(void) +{ + return (socinfo) ? cpu_of_id[socinfo->v0_1.id].soc_id_string : NULL; +} + +static char *socinfo_get_image_version_base_address(struct device *dev) +{ + size_t size, size_in; + void *ptr; + + ptr = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_IMAGE_VERSION_TABLE, + &size); + if (IS_ERR(ptr)) + return ptr; + + size_in = SMEM_IMAGE_VERSION_SIZE; + if (size_in != size) { + dev_err(dev, "Wrong size for smem item\n"); + return ERR_PTR(-EINVAL); + } + + return ptr; +} + + +static u32 socinfo_get_version(void) +{ + return (socinfo) ? socinfo->v0_1.version : 0; +} + +static char *socinfo_get_build_id(void) +{ + return (socinfo) ? socinfo->v0_1.build_id : NULL; +} + +static u32 socinfo_get_raw_version(void) +{ + return socinfo ? + (socinfo_format >= SOCINFO_FORMAT(2) ? + socinfo->v0_2.raw_version : 0) + : 0; +} + +static u32 socinfo_get_platform_type(void) +{ + return socinfo ? + (socinfo_format >= SOCINFO_FORMAT(3) ? + socinfo->v0_3.hw_platform : 0) + : 0; +} + +static u32 socinfo_get_platform_version(void) +{ + return socinfo ? + (socinfo_format >= SOCINFO_FORMAT(4) ? + socinfo->v0_4.platform_version : 0) + : 0; +} + +static u32 socinfo_get_platform_subtype(void) +{ + return socinfo ? + (socinfo_format >= SOCINFO_FORMAT(6) ? + socinfo->v0_6.hw_platform_subtype : 0) + : 0; +} + +static u32 socinfo_get_serial_number(void) +{ + return socinfo ? + (socinfo_format >= SOCINFO_FORMAT(10) ? + socinfo->v0_10.serial_number : 0) + : 0; +} + +static u32 socinfo_get_pmic_model(void) +{ + return socinfo ? + (socinfo_format >= SOCINFO_FORMAT(7) ? + socinfo->v0_7.pmic_model : PMIC_MODEL_UNKNOWN) + : PMIC_MODEL_UNKNOWN; +} + +static u32 socinfo_get_pmic_die_revision(void) +{ + return socinfo ? + (socinfo_format >= SOCINFO_FORMAT(7) ? + socinfo->v0_7.pmic_die_revision : 0) + : 0; +} + + +static ssize_t +qcom_get_vendor(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "%s", "Qualcomm\n"); +} + +static ssize_t +qcom_get_raw_version(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "%u\n", + socinfo_get_raw_version()); +} + +static ssize_t +qcom_get_build_id(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return scnprintf(buf, SMEM_SOCINFO_BUILD_ID_LENGTH, "%s\n", + socinfo_get_build_id()); +} + +static ssize_t +qcom_get_hw_platform(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + u32 hw_type; + + hw_type = socinfo_get_platform_type(); + + return sprintf(buf, "%s\n", hw_platform[hw_type]); +} + +static ssize_t +qcom_get_platform_version(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "%u\n", socinfo_get_platform_version()); +} + +static ssize_t +qcom_get_accessory_chip(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + u32 acc_chip = socinfo ? (socinfo_format >= SOCINFO_FORMAT(5) ? + socinfo->v0_5.accessory_chip : 0) : 0; + return sprintf(buf, "%u\n", acc_chip); +} + +static ssize_t +qcom_get_platform_subtype(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + if (socinfo_get_platform_type() == HW_PLATFORM_QRD) { + return sprintf(buf, "%s\n", + qrd_hw_platform_subtype[hw_subtype]); + } else { + return sprintf(buf, "%s\n", + hw_platform_subtype[hw_subtype]); + } +} + +static ssize_t +qcom_get_platform_subtype_id(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "%u\n", socinfo_get_platform_subtype()); +} + +static ssize_t +qcom_get_foundry_id(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + u32 foundry_id = socinfo ? (socinfo_format >= SOCINFO_FORMAT(9) ? + socinfo->v0_9.foundry_id : 0) : 0; + return sprintf(buf, "%u\n", foundry_id); +} + +static ssize_t +qcom_get_serial_number(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "%u\n", socinfo_get_serial_number()); +} + +static ssize_t +qcom_get_chip_family(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + u32 chip_family = socinfo ? (socinfo_format >= SOCINFO_FORMAT(12) ? + socinfo->v0_12.chip_family : 0) : 0; + return sprintf(buf, "0x%x\n", chip_family); +} + +static ssize_t +qcom_get_raw_device_family(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + u32 raw_dev_fam = socinfo ? (socinfo_format >= SOCINFO_FORMAT(12) ? + socinfo->v0_12.raw_device_family : 0) : 0; + return sprintf(buf, "0x%x\n", raw_dev_fam); +} + +static ssize_t +qcom_get_raw_device_number(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + u32 raw_dev_num = socinfo ? (socinfo_format >= SOCINFO_FORMAT(12) ? + socinfo->v0_12.raw_device_number : 0) : 0; + return sprintf(buf, "0x%x\n", raw_dev_num); +} + +static ssize_t +qcom_get_pmic_model(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + u32 pmic_id = socinfo_get_pmic_model(); + + return sprintf(buf, "%s\n", pmic_model[pmic_id]); +} + +static ssize_t +qcom_get_pmic_die_revision(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "%u\n", socinfo_get_pmic_die_revision()); +} + +static ssize_t +qcom_get_image_version(int index, char *buf) +{ + return scnprintf(buf, SMEM_IMAGE_VERSION_NAME_SIZE, "%s\n", + smem_image_version[index].name); +} + +static ssize_t +qcom_set_image_version(int index, const char *buf) +{ + return strlcpy(smem_image_version[index].name, buf, + SMEM_IMAGE_VERSION_NAME_SIZE); +} + +static ssize_t +qcom_get_image_variant(int index, char *buf) +{ + return scnprintf(buf, SMEM_IMAGE_VERSION_VARIANT_SIZE, "%s\n", + smem_image_version[index].variant); +} + +static ssize_t +qcom_set_image_variant(int index, const char *buf) +{ + return strlcpy(smem_image_version[index].variant, buf, + SMEM_IMAGE_VERSION_VARIANT_SIZE); +} + +static ssize_t +qcom_get_image_crm_version(int index, char *buf) +{ + return scnprintf(buf, SMEM_IMAGE_VERSION_OEM_SIZE, "%s\n", + smem_image_version[index].oem); +} + +static ssize_t +qcom_set_image_crm_version(int index, const char *buf) +{ + return strlcpy(smem_image_version[index].oem, buf, + SMEM_IMAGE_VERSION_OEM_SIZE); +} + +static struct device_attribute qcom_soc_attr_raw_version = + __ATTR(raw_version, 0444, qcom_get_raw_version, NULL); + +static struct device_attribute qcom_soc_attr_vendor = + __ATTR(vendor, 0444, qcom_get_vendor, NULL); + +static struct device_attribute qcom_soc_attr_build_id = + __ATTR(build_id, 0444, qcom_get_build_id, NULL); + +static struct device_attribute qcom_soc_attr_hw_platform = + __ATTR(hw_platform, 0444, qcom_get_hw_platform, NULL); + + +static struct device_attribute qcom_soc_attr_platform_version = + __ATTR(platform_version, 0444, + qcom_get_platform_version, NULL); + +static struct device_attribute qcom_soc_attr_accessory_chip = + __ATTR(accessory_chip, 0444, + qcom_get_accessory_chip, NULL); + +static struct device_attribute qcom_soc_attr_platform_subtype = + __ATTR(platform_subtype, 0444, + qcom_get_platform_subtype, NULL); + +static struct device_attribute qcom_soc_attr_platform_subtype_id = + __ATTR(platform_subtype_id, 0444, + qcom_get_platform_subtype_id, NULL); + +static struct device_attribute qcom_soc_attr_foundry_id = + __ATTR(foundry_id, 0444, + qcom_get_foundry_id, NULL); + +static struct device_attribute qcom_soc_attr_serial_number = + __ATTR(serial_number, 0444, + qcom_get_serial_number, NULL); + +static struct device_attribute qcom_soc_attr_chip_family = + __ATTR(chip_family, 0444, + qcom_get_chip_family, NULL); + +static struct device_attribute qcom_soc_attr_raw_device_family = + __ATTR(raw_device_family, 0444, + qcom_get_raw_device_family, NULL); + +static struct device_attribute qcom_soc_attr_raw_device_number = + __ATTR(raw_device_number, 0444, + qcom_get_raw_device_number, NULL); + +static struct device_attribute qcom_soc_attr_pmic_model = + __ATTR(pmic_model, 0444, + qcom_get_pmic_model, NULL); + +static struct device_attribute qcom_soc_attr_pmic_die_revision = + __ATTR(pmic_die_revision, 0444, + qcom_get_pmic_die_revision, NULL); + +SMEM_IMAGE_TABLE_RO_ATTR(boot, SMEM_IMAGE_TABLE_BOOT_INDEX); +SMEM_IMAGE_TABLE_RO_ATTR(tz, SMEM_IMAGE_TABLE_TZ_INDEX); +SMEM_IMAGE_TABLE_RO_ATTR(rpm, SMEM_IMAGE_TABLE_RPM_INDEX); +SMEM_IMAGE_TABLE_ATTR(apps, SMEM_IMAGE_TABLE_APPS_INDEX); +SMEM_IMAGE_TABLE_RO_ATTR(mpss, SMEM_IMAGE_TABLE_MPSS_INDEX); +SMEM_IMAGE_TABLE_RO_ATTR(adsp, SMEM_IMAGE_TABLE_ADSP_INDEX); +SMEM_IMAGE_TABLE_RO_ATTR(cnss, SMEM_IMAGE_TABLE_CNSS_INDEX); +SMEM_IMAGE_TABLE_RO_ATTR(video, SMEM_IMAGE_TABLE_VIDEO_INDEX); + +static struct attribute_group + *smem_image_table[SMEM_IMAGE_VERSION_BLOCKS_COUNT] = { + [SMEM_IMAGE_TABLE_BOOT_INDEX] = &boot_image_attr_group, + [SMEM_IMAGE_TABLE_TZ_INDEX] = &tz_image_attr_group, + [SMEM_IMAGE_TABLE_RPM_INDEX] = &rpm_image_attr_group, + [SMEM_IMAGE_TABLE_APPS_INDEX] = &apps_image_attr_group, + [SMEM_IMAGE_TABLE_MPSS_INDEX] = &mpss_image_attr_group, + [SMEM_IMAGE_TABLE_ADSP_INDEX] = &adsp_image_attr_group, + [SMEM_IMAGE_TABLE_CNSS_INDEX] = &cnss_image_attr_group, + [SMEM_IMAGE_TABLE_VIDEO_INDEX] = &video_image_attr_group, +}; + +static int socinfo_populate_sysfs_files(struct device *qcom_soc_device) +{ + int err, img_idx; + + /* + * Expose SMEM_IMAGE_TABLE to sysfs only when we have IMAGE_TABLE + * available in SMEM. As IMAGE_TABLE and SOCINFO are two separate + * items within SMEM, we expose the remaining soc information(i.e + * only the SOCINFO item available in SMEM) to sysfs even in the + * absence of an IMAGE_TABLE. + */ + if (smem_img_tbl_avlbl) { + for (img_idx = 0; img_idx < SMEM_IMAGE_VERSION_BLOCKS_COUNT; + img_idx++) { + if (smem_image_table[img_idx]) { + err = sysfs_create_group(&qcom_soc_device->kobj, + smem_image_table[img_idx]); + if (err) + break; + } + } + } + err = device_create_file(qcom_soc_device, &qcom_soc_attr_vendor); + if (!err) { + switch (socinfo_format) { + case SOCINFO_FORMAT(12): + err = device_create_file(qcom_soc_device, + &qcom_soc_attr_chip_family); + if (!err) + err = device_create_file(qcom_soc_device, + &qcom_soc_attr_raw_device_family); + if (!err) + err = device_create_file(qcom_soc_device, + &qcom_soc_attr_raw_device_number); + case SOCINFO_FORMAT(11): + case SOCINFO_FORMAT(10): + if (!err) + err = device_create_file(qcom_soc_device, + &qcom_soc_attr_serial_number); + case SOCINFO_FORMAT(9): + if (!err) + err = device_create_file(qcom_soc_device, + &qcom_soc_attr_foundry_id); + case SOCINFO_FORMAT(8): + case SOCINFO_FORMAT(7): + if (!err) + err = device_create_file(qcom_soc_device, + &qcom_soc_attr_pmic_model); + if (!err) + err = device_create_file(qcom_soc_device, + &qcom_soc_attr_pmic_die_revision); + case SOCINFO_FORMAT(6): + if (hw_subtype_valid) + if (!err) + err = device_create_file( + qcom_soc_device, + &qcom_soc_attr_platform_subtype); + if (!err) + err = device_create_file(qcom_soc_device, + &qcom_soc_attr_platform_subtype_id); + case SOCINFO_FORMAT(5): + if (!err) + err = device_create_file(qcom_soc_device, + &qcom_soc_attr_accessory_chip); + case SOCINFO_FORMAT(4): + if (!err) + err = device_create_file(qcom_soc_device, + &qcom_soc_attr_platform_version); + case SOCINFO_FORMAT(3): + if (!err) + err = device_create_file(qcom_soc_device, + &qcom_soc_attr_hw_platform); + case SOCINFO_FORMAT(2): + if (!err) + err = device_create_file(qcom_soc_device, + &qcom_soc_attr_raw_version); + case SOCINFO_FORMAT(1): + if (!err) + err = device_create_file(qcom_soc_device, + &qcom_soc_attr_build_id); + if (err) { + dev_err(qcom_soc_device, + "Could not create sysfs entry\n"); + return err; + } + return 0; + default: + dev_err(qcom_soc_device, "Unknown socinfo format: v0.%u\n", + SOCINFO_VERSION_MINOR(socinfo_format)); + return -EINVAL; + } + } else { + dev_err(qcom_soc_device, "Could not create sysfs entry\n"); + return err; + } +} + +static int socinfo_init_sysfs(struct device *dev) +{ + struct device *qcom_soc_device; + struct soc_device *soc_dev; + struct soc_device_attribute *soc_dev_attr; + u32 soc_version; + + soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL); + if (!soc_dev_attr) + return -ENOMEM; + + soc_version = socinfo_get_version(); + + soc_dev_attr->soc_id = kasprintf(GFP_KERNEL, "%d", socinfo_get_id()); + soc_dev_attr->family = "Snapdragon"; + soc_dev_attr->machine = socinfo_get_id_string(); + soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%u.%u", + SOC_VERSION_MAJOR(soc_version), + SOC_VERSION_MINOR(soc_version)); + + soc_dev = soc_device_register(soc_dev_attr); + if (IS_ERR(soc_dev)) { + kfree(soc_dev_attr); + return PTR_ERR(soc_dev); + } + + qcom_soc_device = soc_device_to_device(soc_dev); + socinfo_populate_sysfs_files(qcom_soc_device); + return 0; +} + +static u32 socinfo_get_id(void) +{ + return (socinfo) ? socinfo->v0_1.id : 0; +} + +static void socinfo_print(struct device *dev) +{ + u32 f_min = SOCINFO_VERSION_MINOR(socinfo_format); + u32 v_maj = SOC_VERSION_MAJOR(socinfo->v0_1.version); + u32 v_min = SOC_VERSION_MINOR(socinfo->v0_1.version); + + switch (socinfo_format) { + case SOCINFO_FORMAT(1): + dev_info(dev, "socinfo: v0.%u, id=%u, ver=%u.%u\n", + f_min, socinfo->v0_1.id, v_maj, v_min); + break; + case SOCINFO_FORMAT(2): + dev_info(dev, "socinfo: v0.%u, id=%u, ver=%u.%u, raw_ver=%u\n", + f_min, socinfo->v0_1.id, v_maj, v_min, + socinfo->v0_2.raw_version); + break; + case SOCINFO_FORMAT(3): + dev_info(dev, "socinfo: v0.%u, id=%u, ver=%u.%u, raw_ver=%u, hw_plat=%u\n", + f_min, socinfo->v0_1.id, + v_maj, v_min, socinfo->v0_2.raw_version, + socinfo->v0_3.hw_platform); + break; + case SOCINFO_FORMAT(4): + dev_info(dev, "socinfo: v0.%u, id=%u, ver=%u.%u, raw_ver=%u, hw_plat=%u, hw_plat_ver=%u\n", + f_min, socinfo->v0_1.id, v_maj, v_min, + socinfo->v0_2.raw_version, + socinfo->v0_3.hw_platform, + socinfo->v0_4.platform_version); + break; + case SOCINFO_FORMAT(5): + dev_info(dev, "socinfo: v0.%u, id=%u, ver=%u.%u, raw_ver=%u, hw_plat=%u, hw_plat_ver=%u accessory_chip=%u\n", + f_min, socinfo->v0_1.id, v_maj, v_min, + socinfo->v0_2.raw_version, + socinfo->v0_3.hw_platform, + socinfo->v0_4.platform_version, + socinfo->v0_5.accessory_chip); + break; + case SOCINFO_FORMAT(6): + dev_info(dev, "socinfo: v0.%u, id=%u, ver=%u.%u, raw_ver=%u, hw_plat=%u, hw_plat_ver=%u accessory_chip=%u, hw_plat_subtype=%u\n", + f_min, socinfo->v0_1.id, + v_maj, v_min, socinfo->v0_2.raw_version, + socinfo->v0_3.hw_platform, + socinfo->v0_4.platform_version, + socinfo->v0_5.accessory_chip, + socinfo->v0_6.hw_platform_subtype); + break; + case SOCINFO_FORMAT(7): + case SOCINFO_FORMAT(8): + dev_info(dev, "socinfo: v0.%u, id=%u, ver=%u.%u, raw_ver=%u, hw_plat=%u, hw_plat_ver=%u accessory_chip=%u, hw_plat_subtype=%u, pmic_model=%u, pmic_die_revision=%u\n", + f_min, socinfo->v0_1.id, v_maj, v_min, + socinfo->v0_2.raw_version, + socinfo->v0_3.hw_platform, + socinfo->v0_4.platform_version, + socinfo->v0_5.accessory_chip, + socinfo->v0_6.hw_platform_subtype, + socinfo->v0_7.pmic_model, + socinfo->v0_7.pmic_die_revision); + break; + case SOCINFO_FORMAT(9): + dev_info(dev, "socinfo: v0.%u, id=%u, ver=%u.%u, raw_ver=%u, hw_plat=%u, hw_plat_ver=%u accessory_chip=%u, hw_plat_subtype=%u, pmic_model=%u, pmic_die_revision=%u foundry_id=%u\n", + f_min, socinfo->v0_1.id, v_maj, v_min, + socinfo->v0_2.raw_version, + socinfo->v0_3.hw_platform, + socinfo->v0_4.platform_version, + socinfo->v0_5.accessory_chip, + socinfo->v0_6.hw_platform_subtype, + socinfo->v0_7.pmic_model, + socinfo->v0_7.pmic_die_revision, + socinfo->v0_9.foundry_id); + break; + case SOCINFO_FORMAT(10): + dev_info(dev, "socinfo: v0.%u, id=%u, ver=%u.%u, raw_ver=%u, hw_plat=%u, hw_plat_ver=%u accessory_chip=%u, hw_plat_subtype=%u, pmic_model=%u, pmic_die_revision=%u, foundry_id=%u, serial_number=%u\n", + f_min, socinfo->v0_1.id, v_maj, v_min, + socinfo->v0_2.raw_version, + socinfo->v0_3.hw_platform, + socinfo->v0_4.platform_version, + socinfo->v0_5.accessory_chip, + socinfo->v0_6.hw_platform_subtype, + socinfo->v0_7.pmic_model, + socinfo->v0_7.pmic_die_revision, + socinfo->v0_9.foundry_id, + socinfo->v0_10.serial_number); + break; + case SOCINFO_FORMAT(11): + dev_info(dev, "socinfo: v0.%u, id=%u, ver=%u.%u, raw_ver=%u, hw_plat=%u, hw_plat_ver=%u, accessory_chip=%u, hw_plat_subtype=%u, pmic_model=%u, pmic_die_revision=%u, foundry_id=%u, serial_number=%u num_pmics=%u\n", + f_min, socinfo->v0_1.id, v_maj, v_min, + socinfo->v0_2.raw_version, + socinfo->v0_3.hw_platform, + socinfo->v0_4.platform_version, + socinfo->v0_5.accessory_chip, + socinfo->v0_6.hw_platform_subtype, + socinfo->v0_7.pmic_model, + socinfo->v0_7.pmic_die_revision, + socinfo->v0_9.foundry_id, + socinfo->v0_10.serial_number, + socinfo->v0_11.num_pmics); + break; + case SOCINFO_FORMAT(12): + dev_info(dev, "socinfo: v0.%u, id=%u, ver=%u.%u, raw_ver=%u, hw_plat=%u, hw_plat_ver=%u accessory_chip=%u, hw_plat_subtype=%u, pmic_model=%u, pmic_die_revision=%u, foundry_id=%u, serial_number=%u, num_pmics=%u, chip_family=0x%x, raw_device_family=0x%x, raw_device_number=0x%x\n", + f_min, socinfo->v0_1.id, v_maj, v_min, + socinfo->v0_2.raw_version, + socinfo->v0_3.hw_platform, + socinfo->v0_4.platform_version, + socinfo->v0_5.accessory_chip, + socinfo->v0_6.hw_platform_subtype, + socinfo->v0_7.pmic_model, + socinfo->v0_7.pmic_die_revision, + socinfo->v0_9.foundry_id, + socinfo->v0_10.serial_number, + socinfo->v0_11.num_pmics, + socinfo->v0_12.chip_family, + socinfo->v0_12.raw_device_family, + socinfo->v0_12.raw_device_number); + break; + + default: + dev_err(dev, "socinfo: Unknown format found: v0.%u\n", f_min); + break; + } +} + +static int socinfo_select_format(struct device *dev) +{ + u32 f_maj = SOCINFO_VERSION_MAJOR(socinfo->v0_1.format); + u32 f_min = SOCINFO_VERSION_MINOR(socinfo->v0_1.format); + + if (f_maj != 0) { + dev_err(dev, "Unsupported format v%u.%u.\n", + f_maj, f_min); + return -EINVAL; + } + + if (socinfo->v0_1.format > MAX_SOCINFO_FORMAT) { + dev_warn(dev, "Unsupported format v%u.%u. Falling back to v%u.%u.\n", + f_maj, f_min, SOCINFO_VERSION_MAJOR(MAX_SOCINFO_FORMAT), + SOCINFO_VERSION_MINOR(MAX_SOCINFO_FORMAT)); + socinfo_format = MAX_SOCINFO_FORMAT; + } else { + socinfo_format = socinfo->v0_1.format; + } + return 0; +} + +int qcom_socinfo_init(struct platform_device *pdev) +{ + size_t size; + + socinfo = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_HW_SW_BUILD_ID, + &size); + if (IS_ERR(socinfo) || (socinfo_select_format(&pdev->dev) < 0)) { + dev_warn(&pdev->dev, + "Coudn't find soc information; Unable to setup socinfo.\n"); + return -ENOMEM; + } + + if (!socinfo_get_id()) { + dev_err(&pdev->dev, "socinfo: Unknown SoC ID!\n"); + return -EINVAL; + } + + WARN(socinfo_get_id() >= ARRAY_SIZE(cpu_of_id), + "New IDs added! ID => CPU mapping needs an update.\n"); + + socinfo_print(&pdev->dev); + + smem_image_version = (struct smem_image_version *) + socinfo_get_image_version_base_address(&pdev->dev); + if (IS_ERR(smem_image_version)) { + dev_warn(&pdev->dev, "Unable to get address for image version table.\n"); + smem_img_tbl_avlbl = false; + } + + hw_subtype = socinfo_get_platform_subtype(); + if (socinfo_get_platform_type() == HW_PLATFORM_QRD) { + if (hw_subtype >= PLATFORM_SUBTYPE_QRD_INVALID) { + dev_err(&pdev->dev, "Invalid hardware platform sub type for qrd found\n"); + hw_subtype_valid = false; + } + } else { + if (hw_subtype >= PLATFORM_SUBTYPE_INVALID) { + dev_err(&pdev->dev, "Invalid hardware platform subtype\n"); + hw_subtype_valid = false; + } + } + + socinfo_init_sysfs(&pdev->dev); + + /* Feed the soc specific unique data into entropy pool */ + add_device_randomness(socinfo, size); + + return 0; +} +EXPORT_SYMBOL(qcom_socinfo_init); + -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html