// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2018 Rockchip Electronics Co. Ltd. */
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/printk.h>
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#include <linux/slab.h>
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#include "rkflash_debug.h"
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static unsigned int rkflash_debug;
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__printf(1, 2) int rkflash_print_dio(const char *fmt, ...)
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{
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int nret = 0;
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#if PRINT_SWI_CON_IO
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if (rkflash_debug & PRINT_BIT_CON_IO) {
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va_list args;
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if (!fmt)
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return nret;
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va_start(args, fmt);
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nret = vprintk(fmt, args);
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va_end(args);
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}
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#endif
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return nret;
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}
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__printf(1, 2) int rkflash_print_bio(const char *fmt, ...)
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{
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int nret = 0;
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#if PRINT_SWI_BLK_IO
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if (rkflash_debug & PRINT_BIT_BLK_IO) {
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va_list args;
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if (!fmt)
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return nret;
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va_start(args, fmt);
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nret = vprintk(fmt, args);
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va_end(args);
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}
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#endif
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return nret;
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}
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__printf(1, 2) int rkflash_print_info(const char *fmt, ...)
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{
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int nret = 0;
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#if PRINT_SWI_INFO
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va_list args;
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if (!fmt)
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return nret;
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va_start(args, fmt);
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nret = vprintk(fmt, args);
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va_end(args);
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#endif
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return nret;
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}
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__printf(1, 2) int rkflash_print_error(const char *fmt, ...)
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{
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int nret = 0;
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#if PRINT_SWI_ERROR
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va_list args;
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if (!fmt)
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return nret;
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va_start(args, fmt);
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nret = vprintk(fmt, args);
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va_end(args);
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#endif
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return nret;
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}
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void rkflash_print_hex(const char *s, const void *buf, int w, size_t len)
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{
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#if PRINT_SWI_ERROR
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return print_hex_dump(KERN_WARNING, s, DUMP_PREFIX_OFFSET, 4, w,
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buf, (len) * w, 0);
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#endif
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}
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static int set_val(const char *val, const struct kernel_param *kp)
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{
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char *tmp = kzalloc(8, GFP_KERNEL);
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strncpy(tmp, val, 8);
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if (!strncmp(tmp, "0", 1)) {
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rkflash_debug = 0;
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} else if (!strncmp(tmp, "blk_io", 6)) {
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rkflash_debug |= PRINT_BIT_BLK_IO;
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} else if (!strncmp(tmp, "con_io", 6)) {
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rkflash_debug |= PRINT_BIT_CON_IO;
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} else {
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pr_info("input error, support 0, blk_io, con_io\n");
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rkflash_debug = 0;
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}
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kfree(tmp);
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return 0;
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}
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static struct kernel_param_ops rkflash_debug_param_ops = {
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.set = set_val,
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.get = param_get_uint,
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};
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module_param_cb(rkflash_debug, &rkflash_debug_param_ops, &rkflash_debug, 0644);
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MODULE_PARM_DESC(rkflash_debug, "config rkflash_debug module");
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