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// SPDX-License-Identifier: GPL-2.0-only
/* Copyright(c) 2025 Intel Corporation */
#include <linux/bitops.h>
#include <linux/sprintf.h>
#include <linux/string_helpers.h>
#include "adf_pm_dbgfs_utils.h"
/*
* This is needed because a variable is used to index the mask at
* pm_scnprint_table(), making it not compile time constant, so the compile
* asserts from FIELD_GET() or u32_get_bits() won't be fulfilled.
*/
#define field_get(_mask, _reg) (((_reg) & (_mask)) >> (ffs(_mask) - 1))
#define PM_INFO_MAX_KEY_LEN 21
static int pm_scnprint_table(char *buff, const struct pm_status_row *table,
u32 *pm_info_regs, size_t buff_size, int table_len,
bool lowercase)
{
char key[PM_INFO_MAX_KEY_LEN];
int wr = 0;
int i;
for (i = 0; i < table_len; i++) {
if (lowercase)
string_lower(key, table[i].key);
else
string_upper(key, table[i].key);
wr += scnprintf(&buff[wr], buff_size - wr, "%s: %#x\n", key,
field_get(table[i].field_mask,
pm_info_regs[table[i].reg_offset]));
}
return wr;
}
int adf_pm_scnprint_table_upper_keys(char *buff, const struct pm_status_row *table,
u32 *pm_info_regs, size_t buff_size, int table_len)
{
return pm_scnprint_table(buff, table, pm_info_regs, buff_size,
table_len, false);
}
int adf_pm_scnprint_table_lower_keys(char *buff, const struct pm_status_row *table,
u32 *pm_info_regs, size_t buff_size, int table_len)
{
return pm_scnprint_table(buff, table, pm_info_regs, buff_size,
table_len, true);
}
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