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#define pr_fmt(fmt) "["KBUILD_MODNAME"] " fmt
#include <linux/module.h>
#include <linux/device.h>
#include <linux/fs.h>
#include <linux/cdev.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/uaccess.h>
#include <linux/mm.h>
#include <linux/kfifo.h>
#include <linux/firmware.h>
#include <linux/syscalls.h>
#include <linux/uaccess.h>
#include <linux/platform_device.h>
#include <linux/proc_fs.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/printk.h>
#include <mach/mt_reg_base.h>
#include <mach/mt_typedefs.h>
#include <asm/setup.h>
#include <mach/mt_chip_common.h>
struct mt_chip_drv g_chip_drv = {
.info_bit_mask = CHIP_INFO_BIT(CHIP_INFO_ALL)
};
struct mt_chip_drv* get_mt_chip_drv(void)
{
return &g_chip_drv;
}
struct chip_inf_entry
{
const char* name;
chip_info_t id;
int (*to_str)(char* buf, size_t len, int val);
};
static int hex2str(char* buf, size_t len, int val)
{
return snprintf(buf, len, "%04X", val);
}
static int dec2str(char* buf, size_t len, int val)
{
return snprintf(buf, len, "%04d", val);
}
static int date2str(char* buf, size_t len, int val)
{
unsigned int year = ((val & 0x3C0) >> 6) + 2012;
unsigned int week = (val & 0x03F);
return snprintf(buf, len, "%04d%02d", year, week);
}
#define __chip_info(id) ((g_chip_drv.get_chip_info) ? (g_chip_drv.get_chip_info(id)) : (0x0000))
static struct proc_dir_entry *chip_proc = NULL;
static struct chip_inf_entry chip_ent[] =
{
{"hw_code", CHIP_INFO_HW_CODE, hex2str},
{"hw_subcode", CHIP_INFO_HW_SUBCODE, hex2str},
{"hw_ver", CHIP_INFO_HW_VER, hex2str},
{"sw_ver", CHIP_INFO_SW_VER, hex2str},
{"code_func", CHIP_INFO_FUNCTION_CODE,hex2str},
{"code_date", CHIP_INFO_DATE_CODE, date2str},
{"code_proj", CHIP_INFO_PROJECT_CODE, dec2str},
{"code_fab", CHIP_INFO_FAB_CODE, hex2str},
{"wafer_big_ver", CHIP_INFO_WAFER_BIG_VER, hex2str},
{"info", CHIP_INFO_ALL, NULL}
};
static int chip_proc_show(struct seq_file* s, void* v)
{
struct chip_inf_entry *ent = s->private;
if ((ent->id > CHIP_INFO_NONE) && (ent->id < CHIP_INFO_MAX)) {
seq_printf(s, "%04X\n", __chip_info(ent->id));
} else {
int idx = 0;
char buf[16];
for (idx = 0; idx < sizeof(chip_ent)/sizeof(chip_ent[0]); idx++) {
struct chip_inf_entry *ent = &chip_ent[idx];
unsigned int val = __chip_info(ent->id);
if (!CHIP_INFO_SUP(g_chip_drv.info_bit_mask, ent->id))
continue;
else if (!ent->to_str)
continue;
else if (0 < ent->to_str(buf, sizeof(buf), val))
seq_printf(s, "%-16s : %s (%04x)\n", ent->name, buf, val);
else
seq_printf(s, "%-16s : %s (%04x)\n", ent->name, "NULL", val);
}
seq_printf(s, "%-16s : %04X %04X %04X %04X\n", "reg",
__chip_info(CHIP_INFO_REG_HW_CODE),
__chip_info(CHIP_INFO_REG_HW_SUBCODE),
__chip_info(CHIP_INFO_REG_HW_VER),
__chip_info(CHIP_INFO_REG_SW_VER));
}
return 0;
}
static int chip_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, chip_proc_show, PDE_DATA(file_inode(file)));
}
static const struct file_operations chip_proc_fops = {
.open = chip_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
extern struct proc_dir_entry proc_root;
static void __init create_procfs(void)
{
int idx;
chip_proc = proc_mkdir_data("chip", 0, &proc_root, NULL);
if (NULL == chip_proc) {
pr_err("create /proc/chip fails\n");
return;
} else {
pr_alert("create /proc/chip(%x)\n", g_chip_drv.info_bit_mask);
}
for (idx = 0; idx < sizeof(chip_ent)/sizeof(chip_ent[0]); idx++) {
struct chip_inf_entry *ent = &chip_ent[idx];
if (!CHIP_INFO_SUP(g_chip_drv.info_bit_mask, ent->id))
continue;
if (NULL == proc_create_data(ent->name, S_IRUGO, chip_proc, &chip_proc_fops, ent)) {
pr_err("create /proc/chip/%s fail\n", ent->name);
return;
}
}
}
int __init chip_common_init(void)
{
create_procfs();
return 0;
}
arch_initcall(chip_common_init);
MODULE_DESCRIPTION("MTK Chip Common");
MODULE_LICENSE("GPL");
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