mirror of
https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
synced 2024-11-01 02:21:16 +00:00
419 lines
11 KiB
C
419 lines
11 KiB
C
/*
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* drivers/misc/sec_param.c
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*
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* Copyright (c) 2011 Samsung Electronics
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/module.h>
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#include <linux/device.h>
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#include <linux/slab.h>
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#include <linux/workqueue.h>
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#include <linux/fs.h>
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#include <linux/uaccess.h>
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#include <linux/qcom/sec_param.h>
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#include <linux/file.h>
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#include <linux/syscalls.h>
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#include <linux/delay.h>
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#ifdef CONFIG_USER_RESET_DEBUG
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#include <linux/qcom/sec_debug.h>
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#endif
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#define PARAM_RD 0
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#define PARAM_WR 1
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#define SEC_PARAM_FILE_NAME "/dev/block/bootdevice/by-name/param" /* parameter block */
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static DEFINE_MUTEX(sec_param_mutex);
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/* single global instance */
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struct sec_param_data *param_data;
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struct sec_param_data_s sched_sec_param_data;
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int sec_param_sysfs_init(void);
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static void param_sec_operation(struct work_struct *work)
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{
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/* Read from PARAM(parameter) partition */
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struct file *filp;
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mm_segment_t fs;
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int ret = true;
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struct sec_param_data_s *sched_param_data =
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container_of(work, struct sec_param_data_s, sec_param_work);
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int flag = (sched_param_data->direction == PARAM_WR) ? (O_RDWR | O_SYNC) : O_RDONLY;
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pr_debug("%s %p %x %d %d\n", __func__, sched_param_data->value, sched_param_data->offset, sched_param_data->size, sched_param_data->direction);
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filp = filp_open(SEC_PARAM_FILE_NAME, flag, 0);
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if (IS_ERR(filp)) {
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pr_err("%s: filp_open failed. (%ld)\n",
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__func__, PTR_ERR(filp));
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complete(&sched_sec_param_data.work);
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return;
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}
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fs = get_fs();
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set_fs(get_ds());
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ret = filp->f_op->llseek(filp, sched_param_data->offset, SEEK_SET);
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if (ret < 0) {
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pr_err("%s FAIL LLSEEK\n", __func__);
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ret = false;
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goto param_sec_debug_out;
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}
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if (sched_param_data->direction == PARAM_RD)
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ret = filp->f_op->read(filp, (char __user *)sched_param_data->value,
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sched_param_data->size, &filp->f_pos);
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else if (sched_param_data->direction == PARAM_WR)
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ret = filp->f_op->write(filp, (char __user *)sched_param_data->value,
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sched_param_data->size, &filp->f_pos);
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param_sec_debug_out:
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set_fs(fs);
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filp_close(filp, NULL);
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complete(&sched_sec_param_data.work);
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return;
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}
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bool sec_open_param(void)
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{
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int ret = true;
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pr_info("%s start \n",__func__);
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if (param_data != NULL)
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return true;
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mutex_lock(&sec_param_mutex);
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param_data = kmalloc(sizeof(struct sec_param_data), GFP_KERNEL);
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sched_sec_param_data.value=param_data;
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sched_sec_param_data.offset=SEC_PARAM_FILE_OFFSET;
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sched_sec_param_data.size=sizeof(struct sec_param_data);
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sched_sec_param_data.direction=PARAM_RD;
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schedule_work(&sched_sec_param_data.sec_param_work);
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wait_for_completion(&sched_sec_param_data.work);
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pr_info("%s end \n",__func__);
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mutex_unlock(&sec_param_mutex);
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return ret;
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}
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bool sec_write_param(void)
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{
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int ret = true;
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pr_info("%s start\n",__func__);
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mutex_lock(&sec_param_mutex);
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sched_sec_param_data.value=param_data;
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sched_sec_param_data.offset=SEC_PARAM_FILE_OFFSET;
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sched_sec_param_data.size=sizeof(struct sec_param_data);
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sched_sec_param_data.direction=PARAM_WR;
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schedule_work(&sched_sec_param_data.sec_param_work);
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wait_for_completion(&sched_sec_param_data.work);
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pr_info("%s end\n",__func__);
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mutex_unlock(&sec_param_mutex);
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return ret;
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}
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bool sec_get_param(enum sec_param_index index, void *value)
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{
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int ret = true;
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ret = sec_open_param();
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if (!ret)
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return ret;
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switch (index) {
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case param_index_debuglevel:
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memcpy(value, &(param_data->debuglevel), sizeof(unsigned int));
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break;
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case param_index_uartsel:
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memcpy(value, &(param_data->uartsel), sizeof(unsigned int));
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break;
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case param_rory_control:
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memcpy(value, &(param_data->rory_control),
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sizeof(unsigned int));
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break;
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case param_index_movinand_checksum_done:
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memcpy(value, &(param_data->movinand_checksum_done),
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sizeof(unsigned int));
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break;
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case param_index_movinand_checksum_pass:
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memcpy(value, &(param_data->movinand_checksum_pass),
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sizeof(unsigned int));
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break;
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#ifdef CONFIG_GSM_MODEM_SPRD6500
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case param_update_cp_bin:
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memcpy(value, &(param_data->update_cp_bin),
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sizeof(unsigned int));
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printk(KERN_INFO "param_data.update_cp_bin :[%d]!!", param_data->update_cp_bin);
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break;
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#endif
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#ifdef CONFIG_RTC_AUTO_PWRON_PARAM
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case param_index_boot_alarm_set:
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memcpy(value, &(param_data->boot_alarm_set), sizeof(unsigned int));
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break;
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case param_index_boot_alarm_value_l:
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memcpy(value, &(param_data->boot_alarm_value_l), sizeof(unsigned int));
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break;
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case param_index_boot_alarm_value_h:
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memcpy(value, &(param_data->boot_alarm_value_h), sizeof(unsigned int));
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break;
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#endif
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#ifdef CONFIG_SEC_MONITOR_BATTERY_REMOVAL
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case param_index_normal_poweroff:
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memcpy(&(param_data->normal_poweroff), value, sizeof(unsigned int));
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break;
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#endif
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#ifdef CONFIG_RESTART_REASON_SEC_PARAM
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case param_index_restart_reason:
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memcpy(value, &(param_data->param_restart_reason), sizeof(unsigned int));
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break;
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#endif
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#ifdef CONFIG_BARCODE_PAINTER
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case param_index_barcode_info:
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memcpy(value, param_data->param_barcode_info, sizeof(param_data->param_barcode_info));
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break;
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#endif
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#ifdef CONFIG_SKU_THEME
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case param_index_skutheme_info:
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memcpy(value, param_data->param_skutheme_info, sizeof(param_data->param_skutheme_info));
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break;
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#endif
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case param_index_afc_disable:
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memcpy(value, &(param_data->afc_disable), sizeof(unsigned int));
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break;
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#ifdef CONFIG_USER_RESET_DEBUG
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case param_index_reset_ex_info:
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mutex_lock(&sec_param_mutex);
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sched_sec_param_data.value=value;
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sched_sec_param_data.offset=SEC_PARAM_EX_INFO_OFFSET;
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sched_sec_param_data.size=SEC_DEBUG_EX_INFO_SIZE;
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sched_sec_param_data.direction=PARAM_RD;
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schedule_work(&sched_sec_param_data.sec_param_work);
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wait_for_completion(&sched_sec_param_data.work);
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mutex_unlock(&sec_param_mutex);
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break;
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#endif
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default:
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return false;
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}
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return true;
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}
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EXPORT_SYMBOL(sec_get_param);
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bool sec_set_param(enum sec_param_index index, void *value)
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{
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int ret = true;
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ret = sec_open_param();
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if (!ret)
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return ret;
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switch (index) {
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case param_index_debuglevel:
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memcpy(&(param_data->debuglevel),
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value, sizeof(unsigned int));
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break;
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case param_index_uartsel:
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memcpy(&(param_data->uartsel),
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value, sizeof(unsigned int));
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break;
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case param_rory_control:
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memcpy(&(param_data->rory_control),
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value, sizeof(unsigned int));
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break;
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case param_index_movinand_checksum_done:
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memcpy(&(param_data->movinand_checksum_done),
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value, sizeof(unsigned int));
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break;
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case param_index_movinand_checksum_pass:
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memcpy(&(param_data->movinand_checksum_pass),
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value, sizeof(unsigned int));
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break;
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#ifdef CONFIG_GSM_MODEM_SPRD6500
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case param_update_cp_bin:
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memcpy(&(param_data->update_cp_bin),
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value, sizeof(unsigned int));
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break;
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#endif
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#ifdef CONFIG_RTC_AUTO_PWRON_PARAM
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case param_index_boot_alarm_set:
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memcpy(&(param_data->boot_alarm_set), value, sizeof(unsigned int));
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break;
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case param_index_boot_alarm_value_l:
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memcpy(&(param_data->boot_alarm_value_l), value, sizeof(unsigned int));
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break;
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case param_index_boot_alarm_value_h:
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memcpy(&(param_data->boot_alarm_value_h), value, sizeof(unsigned int));
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break;
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#endif
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#ifdef CONFIG_SEC_MONITOR_BATTERY_REMOVAL
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case param_index_normal_poweroff:
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memcpy(&(param_data->normal_poweroff), value, sizeof(unsigned int));
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break;
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#endif
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#ifdef CONFIG_RESTART_REASON_SEC_PARAM
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case param_index_restart_reason:
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memcpy(&(param_data->param_restart_reason),
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value, sizeof(unsigned int));
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break;
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#endif
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#ifdef CONFIG_BARCODE_PAINTER
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case param_index_barcode_info:
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memcpy(param_data->param_barcode_info,
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value, sizeof(param_data->param_barcode_info));
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break;
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#endif
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#ifdef CONFIG_SKU_THEME
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case param_index_skutheme_info:
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memcpy(param_data->param_skutheme_info,
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value, sizeof(param_data->param_skutheme_info));
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break;
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#endif
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case param_index_afc_disable:
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memcpy(&(param_data->afc_disable),
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value, sizeof(unsigned int));
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break;
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#ifdef CONFIG_USER_RESET_DEBUG
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case param_index_reset_ex_info:
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// do nothing.
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break;
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#endif
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default:
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return false;
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}
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ret = sec_write_param();
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return ret;
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}
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EXPORT_SYMBOL(sec_set_param);
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static int __init sec_param_work_init(void)
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{
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pr_info("%s: start\n", __func__);
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sched_sec_param_data.offset=0;
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sched_sec_param_data.direction=0;
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sched_sec_param_data.size=0;
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sched_sec_param_data.value=NULL;
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init_completion(&sched_sec_param_data.work);
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INIT_WORK(&sched_sec_param_data.sec_param_work, param_sec_operation);
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sec_param_sysfs_init();
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pr_info("%s: end\n", __func__);
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return 0;
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}
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static void __exit sec_param_work_exit(void)
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{
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cancel_work_sync(&sched_sec_param_data.sec_param_work);
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pr_info("%s: exit\n", __func__);
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}
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/* ##########################################################
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* #
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* # SEC PARAM Driver sysfs file
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* # 1. movinand_checksum_done_show
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* # 2. movinand_checksum_pass_show
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* ##########################################################
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* */
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static struct class *sec_param_class;
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struct device *sec_param_dev;
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static ssize_t movinand_checksum_done_show
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(struct device *dev, struct device_attribute *attr, char *buf)
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{
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int ret = 0;
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sec_get_param(param_index_movinand_checksum_done, &ret);
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if (ret == 1 || ret == 0) {
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pr_err("checksum is not in valuable range.\n");
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ret = 1;
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}
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return scnprintf(buf, PAGE_SIZE, "%u\n", ret);
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}
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static DEVICE_ATTR(movinand_checksum_done,
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0444, movinand_checksum_done_show, NULL);
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static ssize_t movinand_checksum_pass_show
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(struct device *dev, struct device_attribute *attr, char *buf)
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{
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int ret = 0;
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sec_get_param(param_index_movinand_checksum_pass, &ret);
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if (ret == 1 || ret == 0) {
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pr_err("checksum is not in valuable range.\n");
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ret = 1;
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}
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return scnprintf(buf, PAGE_SIZE, "%u\n", ret);
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}
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static DEVICE_ATTR(movinand_checksum_pass,
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0444, movinand_checksum_pass_show, NULL);
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int sec_param_sysfs_init(void)
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{
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int ret = 0;
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sec_param_class = class_create(THIS_MODULE, "sec_param");
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if (IS_ERR(sec_param_class)) {
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pr_err("Failed to create class(mdnie_class)!!\n");
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ret = -1;
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goto failed_create_class;
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}
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sec_param_dev = device_create(sec_param_class,
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NULL, 0, NULL, "sec_param");
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if (IS_ERR(sec_param_dev)) {
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printk(KERN_ERR "Failed to create device(sec_param_dev)!!");
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ret = -1;
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goto failed_create_dev;
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}
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if (device_create_file(sec_param_dev,
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&dev_attr_movinand_checksum_done) < 0) {
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pr_err("Failed to create device file!(%s)!\n",
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dev_attr_movinand_checksum_done.attr.name);
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ret = -1;
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}
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if (device_create_file(sec_param_dev,
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&dev_attr_movinand_checksum_pass) < 0) {
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pr_err("Failed to create device file!(%s)!\n",
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dev_attr_movinand_checksum_pass.attr.name);
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ret = -1;
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}
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failed_create_class:
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return ret;
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failed_create_dev:
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class_destroy(sec_param_class);
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return ret;
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}
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module_init(sec_param_work_init);
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module_exit(sec_param_work_exit);
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