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M7350/external/compat-wireless/drivers/net/wireless/brcm80211/brcmsmac/srom.c
T f75098198c M7350v5_en_gpl
2024-09-09 08:57:42 +00:00

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/*
* Copyright (c) 2010 Broadcom Corporation
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/io.h>
#include <linux/etherdevice.h>
#include <linux/crc8.h>
#include <stdarg.h>
#include <chipcommon.h>
#include <brcmu_utils.h>
#include "pub.h"
#include "nicpci.h"
#include "aiutils.h"
#include "otp.h"
#include "srom.h"
#include "soc.h"
/*
* SROM CRC8 polynomial value:
*
* x^8 + x^7 +x^6 + x^4 + x^2 + 1
*/
#define SROM_CRC8_POLY 0xAB
/* Maximum srom: 6 Kilobits == 768 bytes */
#define SROM_MAX 768
/* PCI fields */
#define PCI_F0DEVID 48
#define SROM_WORDS 64
#define SROM_SSID 2
#define SROM_WL1LHMAXP 29
#define SROM_WL1LPAB0 30
#define SROM_WL1LPAB1 31
#define SROM_WL1LPAB2 32
#define SROM_WL1HPAB0 33
#define SROM_WL1HPAB1 34
#define SROM_WL1HPAB2 35
#define SROM_MACHI_IL0 36
#define SROM_MACMID_IL0 37
#define SROM_MACLO_IL0 38
#define SROM_MACHI_ET1 42
#define SROM_MACMID_ET1 43
#define SROM_MACLO_ET1 44
#define SROM_BXARSSI2G 40
#define SROM_BXARSSI5G 41
#define SROM_TRI52G 42
#define SROM_TRI5GHL 43
#define SROM_RXPO52G 45
#define SROM_AABREV 46
/* Fields in AABREV */
#define SROM_BR_MASK 0x00ff
#define SROM_CC_MASK 0x0f00
#define SROM_CC_SHIFT 8
#define SROM_AA0_MASK 0x3000
#define SROM_AA0_SHIFT 12
#define SROM_AA1_MASK 0xc000
#define SROM_AA1_SHIFT 14
#define SROM_WL0PAB0 47
#define SROM_WL0PAB1 48
#define SROM_WL0PAB2 49
#define SROM_LEDBH10 50
#define SROM_LEDBH32 51
#define SROM_WL10MAXP 52
#define SROM_WL1PAB0 53
#define SROM_WL1PAB1 54
#define SROM_WL1PAB2 55
#define SROM_ITT 56
#define SROM_BFL 57
#define SROM_BFL2 28
#define SROM_AG10 58
#define SROM_CCODE 59
#define SROM_OPO 60
#define SROM_CRCREV 63
#define SROM4_WORDS 220
#define SROM4_TXCHAIN_MASK 0x000f
#define SROM4_RXCHAIN_MASK 0x00f0
#define SROM4_SWITCH_MASK 0xff00
/* Per-path fields */
#define MAX_PATH_SROM 4
#define SROM4_CRCREV 219
/* SROM Rev 8: Make space for a 48word hardware header for PCIe rev >= 6.
* This is acombined srom for both MIMO and SISO boards, usable in
* the .130 4Kilobit OTP with hardware redundancy.
*/
#define SROM8_BREV 65
#define SROM8_BFL0 66
#define SROM8_BFL1 67
#define SROM8_BFL2 68
#define SROM8_BFL3 69
#define SROM8_MACHI 70
#define SROM8_MACMID 71
#define SROM8_MACLO 72
#define SROM8_CCODE 73
#define SROM8_REGREV 74
#define SROM8_LEDBH10 75
#define SROM8_LEDBH32 76
#define SROM8_LEDDC 77
#define SROM8_AA 78
#define SROM8_AG10 79
#define SROM8_AG32 80
#define SROM8_TXRXC 81
#define SROM8_BXARSSI2G 82
#define SROM8_BXARSSI5G 83
#define SROM8_TRI52G 84
#define SROM8_TRI5GHL 85
#define SROM8_RXPO52G 86
#define SROM8_FEM2G 87
#define SROM8_FEM5G 88
#define SROM8_FEM_ANTSWLUT_MASK 0xf800
#define SROM8_FEM_ANTSWLUT_SHIFT 11
#define SROM8_FEM_TR_ISO_MASK 0x0700
#define SROM8_FEM_TR_ISO_SHIFT 8
#define SROM8_FEM_PDET_RANGE_MASK 0x00f8
#define SROM8_FEM_PDET_RANGE_SHIFT 3
#define SROM8_FEM_EXTPA_GAIN_MASK 0x0006
#define SROM8_FEM_EXTPA_GAIN_SHIFT 1
#define SROM8_FEM_TSSIPOS_MASK 0x0001
#define SROM8_FEM_TSSIPOS_SHIFT 0
#define SROM8_THERMAL 89
/* Temp sense related entries */
#define SROM8_MPWR_RAWTS 90
#define SROM8_TS_SLP_OPT_CORRX 91
/* FOC: freiquency offset correction, HWIQ: H/W IOCAL enable,
* IQSWP: IQ CAL swap disable */
#define SROM8_FOC_HWIQ_IQSWP 92
/* Temperature delta for PHY calibration */
#define SROM8_PHYCAL_TEMPDELTA 93
/* Per-path offsets & fields */
#define SROM8_PATH0 96
#define SROM8_PATH1 112
#define SROM8_PATH2 128
#define SROM8_PATH3 144
#define SROM8_2G_ITT_MAXP 0
#define SROM8_2G_PA 1
#define SROM8_5G_ITT_MAXP 4
#define SROM8_5GLH_MAXP 5
#define SROM8_5G_PA 6
#define SROM8_5GL_PA 9
#define SROM8_5GH_PA 12
/* All the miriad power offsets */
#define SROM8_2G_CCKPO 160
#define SROM8_2G_OFDMPO 161
#define SROM8_5G_OFDMPO 163
#define SROM8_5GL_OFDMPO 165
#define SROM8_5GH_OFDMPO 167
#define SROM8_2G_MCSPO 169
#define SROM8_5G_MCSPO 177
#define SROM8_5GL_MCSPO 185
#define SROM8_5GH_MCSPO 193
#define SROM8_CDDPO 201
#define SROM8_STBCPO 202
#define SROM8_BW40PO 203
#define SROM8_BWDUPPO 204
/* SISO PA parameters are in the path0 spaces */
#define SROM8_SISO 96
/* Legacy names for SISO PA paramters */
#define SROM8_W0_ITTMAXP (SROM8_SISO + SROM8_2G_ITT_MAXP)
#define SROM8_W0_PAB0 (SROM8_SISO + SROM8_2G_PA)
#define SROM8_W0_PAB1 (SROM8_SISO + SROM8_2G_PA + 1)
#define SROM8_W0_PAB2 (SROM8_SISO + SROM8_2G_PA + 2)
#define SROM8_W1_ITTMAXP (SROM8_SISO + SROM8_5G_ITT_MAXP)
#define SROM8_W1_MAXP_LCHC (SROM8_SISO + SROM8_5GLH_MAXP)
#define SROM8_W1_PAB0 (SROM8_SISO + SROM8_5G_PA)
#define SROM8_W1_PAB1 (SROM8_SISO + SROM8_5G_PA + 1)
#define SROM8_W1_PAB2 (SROM8_SISO + SROM8_5G_PA + 2)
#define SROM8_W1_PAB0_LC (SROM8_SISO + SROM8_5GL_PA)
#define SROM8_W1_PAB1_LC (SROM8_SISO + SROM8_5GL_PA + 1)
#define SROM8_W1_PAB2_LC (SROM8_SISO + SROM8_5GL_PA + 2)
#define SROM8_W1_PAB0_HC (SROM8_SISO + SROM8_5GH_PA)
#define SROM8_W1_PAB1_HC (SROM8_SISO + SROM8_5GH_PA + 1)
#define SROM8_W1_PAB2_HC (SROM8_SISO + SROM8_5GH_PA + 2)
/* SROM REV 9 */
#define SROM9_2GPO_CCKBW20 160
#define SROM9_2GPO_CCKBW20UL 161
#define SROM9_2GPO_LOFDMBW20 162
#define SROM9_2GPO_LOFDMBW20UL 164
#define SROM9_5GLPO_LOFDMBW20 166
#define SROM9_5GLPO_LOFDMBW20UL 168
#define SROM9_5GMPO_LOFDMBW20 170
#define SROM9_5GMPO_LOFDMBW20UL 172
#define SROM9_5GHPO_LOFDMBW20 174
#define SROM9_5GHPO_LOFDMBW20UL 176
#define SROM9_2GPO_MCSBW20 178
#define SROM9_2GPO_MCSBW20UL 180
#define SROM9_2GPO_MCSBW40 182
#define SROM9_5GLPO_MCSBW20 184
#define SROM9_5GLPO_MCSBW20UL 186
#define SROM9_5GLPO_MCSBW40 188
#define SROM9_5GMPO_MCSBW20 190
#define SROM9_5GMPO_MCSBW20UL 192
#define SROM9_5GMPO_MCSBW40 194
#define SROM9_5GHPO_MCSBW20 196
#define SROM9_5GHPO_MCSBW20UL 198
#define SROM9_5GHPO_MCSBW40 200
#define SROM9_PO_MCS32 202
#define SROM9_PO_LOFDM40DUP 203
/* SROM flags (see sromvar_t) */
/* value continues as described by the next entry */
#define SRFL_MORE 1
#define SRFL_NOFFS 2 /* value bits can't be all one's */
#define SRFL_PRHEX 4 /* value is in hexdecimal format */
#define SRFL_PRSIGN 8 /* value is in signed decimal format */
#define SRFL_CCODE 0x10 /* value is in country code format */
#define SRFL_ETHADDR 0x20 /* value is an Ethernet address */
#define SRFL_LEDDC 0x40 /* value is an LED duty cycle */
/* do not generate a nvram param, entry is for mfgc */
#define SRFL_NOVAR 0x80
/* Max. nvram variable table size */
#define MAXSZ_NVRAM_VARS 4096
/*
* indicates type of value.
*/
enum brcms_srom_var_type {
BRCMS_SROM_STRING,
BRCMS_SROM_SNUMBER,
BRCMS_SROM_UNUMBER
};
/*
* storage type for srom variable.
*
* var_list: for linked list operations.
* varid: identifier of the variable.
* var_type: type of variable.
* buf: variable value when var_type == BRCMS_SROM_STRING.
* uval: unsigned variable value when var_type == BRCMS_SROM_UNUMBER.
* sval: signed variable value when var_type == BRCMS_SROM_SNUMBER.
*/
struct brcms_srom_list_head {
struct list_head var_list;
enum brcms_srom_id varid;
enum brcms_srom_var_type var_type;
union {
char buf[0];
u32 uval;
s32 sval;
};
};
struct brcms_sromvar {
enum brcms_srom_id varid;
u32 revmask;
u32 flags;
u16 off;
u16 mask;
};
struct brcms_varbuf {
char *base; /* pointer to buffer base */
char *buf; /* pointer to current position */
unsigned int size; /* current (residual) size in bytes */
};
/*
* Assumptions:
* - Ethernet address spans across 3 consecutive words
*
* Table rules:
* - Add multiple entries next to each other if a value spans across multiple
* words (even multiple fields in the same word) with each entry except the
* last having it's SRFL_MORE bit set.
* - Ethernet address entry does not follow above rule and must not have
* SRFL_MORE bit set. Its SRFL_ETHADDR bit implies it takes multiple words.
* - The last entry's name field must be NULL to indicate the end of the table.
* Other entries must have non-NULL name.
*/
static const struct brcms_sromvar pci_sromvars[] = {
{BRCMS_SROM_DEVID, 0xffffff00, SRFL_PRHEX | SRFL_NOVAR, PCI_F0DEVID,
0xffff},
{BRCMS_SROM_BOARDREV, 0xffffff00, SRFL_PRHEX, SROM8_BREV, 0xffff},
{BRCMS_SROM_BOARDFLAGS, 0xffffff00, SRFL_PRHEX | SRFL_MORE, SROM8_BFL0,
0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM8_BFL1, 0xffff},
{BRCMS_SROM_BOARDFLAGS2, 0xffffff00, SRFL_PRHEX | SRFL_MORE, SROM8_BFL2,
0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM8_BFL3, 0xffff},
{BRCMS_SROM_BOARDTYPE, 0xfffffffc, SRFL_PRHEX, SROM_SSID, 0xffff},
{BRCMS_SROM_BOARDNUM, 0xffffff00, 0, SROM8_MACLO, 0xffff},
{BRCMS_SROM_REGREV, 0xffffff00, 0, SROM8_REGREV, 0x00ff},
{BRCMS_SROM_LEDBH0, 0xffffff00, SRFL_NOFFS, SROM8_LEDBH10, 0x00ff},
{BRCMS_SROM_LEDBH1, 0xffffff00, SRFL_NOFFS, SROM8_LEDBH10, 0xff00},
{BRCMS_SROM_LEDBH2, 0xffffff00, SRFL_NOFFS, SROM8_LEDBH32, 0x00ff},
{BRCMS_SROM_LEDBH3, 0xffffff00, SRFL_NOFFS, SROM8_LEDBH32, 0xff00},
{BRCMS_SROM_PA0B0, 0xffffff00, SRFL_PRHEX, SROM8_W0_PAB0, 0xffff},
{BRCMS_SROM_PA0B1, 0xffffff00, SRFL_PRHEX, SROM8_W0_PAB1, 0xffff},
{BRCMS_SROM_PA0B2, 0xffffff00, SRFL_PRHEX, SROM8_W0_PAB2, 0xffff},
{BRCMS_SROM_PA0ITSSIT, 0xffffff00, 0, SROM8_W0_ITTMAXP, 0xff00},
{BRCMS_SROM_PA0MAXPWR, 0xffffff00, 0, SROM8_W0_ITTMAXP, 0x00ff},
{BRCMS_SROM_OPO, 0xffffff00, 0, SROM8_2G_OFDMPO, 0x00ff},
{BRCMS_SROM_AA2G, 0xffffff00, 0, SROM8_AA, 0x00ff},
{BRCMS_SROM_AA5G, 0xffffff00, 0, SROM8_AA, 0xff00},
{BRCMS_SROM_AG0, 0xffffff00, 0, SROM8_AG10, 0x00ff},
{BRCMS_SROM_AG1, 0xffffff00, 0, SROM8_AG10, 0xff00},
{BRCMS_SROM_AG2, 0xffffff00, 0, SROM8_AG32, 0x00ff},
{BRCMS_SROM_AG3, 0xffffff00, 0, SROM8_AG32, 0xff00},
{BRCMS_SROM_PA1B0, 0xffffff00, SRFL_PRHEX, SROM8_W1_PAB0, 0xffff},
{BRCMS_SROM_PA1B1, 0xffffff00, SRFL_PRHEX, SROM8_W1_PAB1, 0xffff},
{BRCMS_SROM_PA1B2, 0xffffff00, SRFL_PRHEX, SROM8_W1_PAB2, 0xffff},
{BRCMS_SROM_PA1LOB0, 0xffffff00, SRFL_PRHEX, SROM8_W1_PAB0_LC, 0xffff},
{BRCMS_SROM_PA1LOB1, 0xffffff00, SRFL_PRHEX, SROM8_W1_PAB1_LC, 0xffff},
{BRCMS_SROM_PA1LOB2, 0xffffff00, SRFL_PRHEX, SROM8_W1_PAB2_LC, 0xffff},
{BRCMS_SROM_PA1HIB0, 0xffffff00, SRFL_PRHEX, SROM8_W1_PAB0_HC, 0xffff},
{BRCMS_SROM_PA1HIB1, 0xffffff00, SRFL_PRHEX, SROM8_W1_PAB1_HC, 0xffff},
{BRCMS_SROM_PA1HIB2, 0xffffff00, SRFL_PRHEX, SROM8_W1_PAB2_HC, 0xffff},
{BRCMS_SROM_PA1ITSSIT, 0xffffff00, 0, SROM8_W1_ITTMAXP, 0xff00},
{BRCMS_SROM_PA1MAXPWR, 0xffffff00, 0, SROM8_W1_ITTMAXP, 0x00ff},
{BRCMS_SROM_PA1LOMAXPWR, 0xffffff00, 0, SROM8_W1_MAXP_LCHC, 0xff00},
{BRCMS_SROM_PA1HIMAXPWR, 0xffffff00, 0, SROM8_W1_MAXP_LCHC, 0x00ff},
{BRCMS_SROM_BXA2G, 0xffffff00, 0, SROM8_BXARSSI2G, 0x1800},
{BRCMS_SROM_RSSISAV2G, 0xffffff00, 0, SROM8_BXARSSI2G, 0x0700},
{BRCMS_SROM_RSSISMC2G, 0xffffff00, 0, SROM8_BXARSSI2G, 0x00f0},
{BRCMS_SROM_RSSISMF2G, 0xffffff00, 0, SROM8_BXARSSI2G, 0x000f},
{BRCMS_SROM_BXA5G, 0xffffff00, 0, SROM8_BXARSSI5G, 0x1800},
{BRCMS_SROM_RSSISAV5G, 0xffffff00, 0, SROM8_BXARSSI5G, 0x0700},
{BRCMS_SROM_RSSISMC5G, 0xffffff00, 0, SROM8_BXARSSI5G, 0x00f0},
{BRCMS_SROM_RSSISMF5G, 0xffffff00, 0, SROM8_BXARSSI5G, 0x000f},
{BRCMS_SROM_TRI2G, 0xffffff00, 0, SROM8_TRI52G, 0x00ff},
{BRCMS_SROM_TRI5G, 0xffffff00, 0, SROM8_TRI52G, 0xff00},
{BRCMS_SROM_TRI5GL, 0xffffff00, 0, SROM8_TRI5GHL, 0x00ff},
{BRCMS_SROM_TRI5GH, 0xffffff00, 0, SROM8_TRI5GHL, 0xff00},
{BRCMS_SROM_RXPO2G, 0xffffff00, SRFL_PRSIGN, SROM8_RXPO52G, 0x00ff},
{BRCMS_SROM_RXPO5G, 0xffffff00, SRFL_PRSIGN, SROM8_RXPO52G, 0xff00},
{BRCMS_SROM_TXCHAIN, 0xffffff00, SRFL_NOFFS, SROM8_TXRXC,
SROM4_TXCHAIN_MASK},
{BRCMS_SROM_RXCHAIN, 0xffffff00, SRFL_NOFFS, SROM8_TXRXC,
SROM4_RXCHAIN_MASK},
{BRCMS_SROM_ANTSWITCH, 0xffffff00, SRFL_NOFFS, SROM8_TXRXC,
SROM4_SWITCH_MASK},
{BRCMS_SROM_TSSIPOS2G, 0xffffff00, 0, SROM8_FEM2G,
SROM8_FEM_TSSIPOS_MASK},
{BRCMS_SROM_EXTPAGAIN2G, 0xffffff00, 0, SROM8_FEM2G,
SROM8_FEM_EXTPA_GAIN_MASK},
{BRCMS_SROM_PDETRANGE2G, 0xffffff00, 0, SROM8_FEM2G,
SROM8_FEM_PDET_RANGE_MASK},
{BRCMS_SROM_TRISO2G, 0xffffff00, 0, SROM8_FEM2G, SROM8_FEM_TR_ISO_MASK},
{BRCMS_SROM_ANTSWCTL2G, 0xffffff00, 0, SROM8_FEM2G,
SROM8_FEM_ANTSWLUT_MASK},
{BRCMS_SROM_TSSIPOS5G, 0xffffff00, 0, SROM8_FEM5G,
SROM8_FEM_TSSIPOS_MASK},
{BRCMS_SROM_EXTPAGAIN5G, 0xffffff00, 0, SROM8_FEM5G,
SROM8_FEM_EXTPA_GAIN_MASK},
{BRCMS_SROM_PDETRANGE5G, 0xffffff00, 0, SROM8_FEM5G,
SROM8_FEM_PDET_RANGE_MASK},
{BRCMS_SROM_TRISO5G, 0xffffff00, 0, SROM8_FEM5G, SROM8_FEM_TR_ISO_MASK},
{BRCMS_SROM_ANTSWCTL5G, 0xffffff00, 0, SROM8_FEM5G,
SROM8_FEM_ANTSWLUT_MASK},
{BRCMS_SROM_TEMPTHRESH, 0xffffff00, 0, SROM8_THERMAL, 0xff00},
{BRCMS_SROM_TEMPOFFSET, 0xffffff00, 0, SROM8_THERMAL, 0x00ff},
{BRCMS_SROM_CCODE, 0xffffff00, SRFL_CCODE, SROM8_CCODE, 0xffff},
{BRCMS_SROM_MACADDR, 0xffffff00, SRFL_ETHADDR, SROM8_MACHI, 0xffff},
{BRCMS_SROM_LEDDC, 0xffffff00, SRFL_NOFFS | SRFL_LEDDC, SROM8_LEDDC,
0xffff},
{BRCMS_SROM_RAWTEMPSENSE, 0xffffff00, SRFL_PRHEX, SROM8_MPWR_RAWTS,
0x01ff},
{BRCMS_SROM_MEASPOWER, 0xffffff00, SRFL_PRHEX, SROM8_MPWR_RAWTS,
0xfe00},
{BRCMS_SROM_TEMPSENSE_SLOPE, 0xffffff00, SRFL_PRHEX,
SROM8_TS_SLP_OPT_CORRX, 0x00ff},
{BRCMS_SROM_TEMPCORRX, 0xffffff00, SRFL_PRHEX, SROM8_TS_SLP_OPT_CORRX,
0xfc00},
{BRCMS_SROM_TEMPSENSE_OPTION, 0xffffff00, SRFL_PRHEX,
SROM8_TS_SLP_OPT_CORRX, 0x0300},
{BRCMS_SROM_FREQOFFSET_CORR, 0xffffff00, SRFL_PRHEX,
SROM8_FOC_HWIQ_IQSWP, 0x000f},
{BRCMS_SROM_IQCAL_SWP_DIS, 0xffffff00, SRFL_PRHEX, SROM8_FOC_HWIQ_IQSWP,
0x0010},
{BRCMS_SROM_HW_IQCAL_EN, 0xffffff00, SRFL_PRHEX, SROM8_FOC_HWIQ_IQSWP,
0x0020},
{BRCMS_SROM_PHYCAL_TEMPDELTA, 0xffffff00, 0, SROM8_PHYCAL_TEMPDELTA,
0x00ff},
{BRCMS_SROM_CCK2GPO, 0x00000100, 0, SROM8_2G_CCKPO, 0xffff},
{BRCMS_SROM_OFDM2GPO, 0x00000100, SRFL_MORE, SROM8_2G_OFDMPO, 0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM8_2G_OFDMPO + 1, 0xffff},
{BRCMS_SROM_OFDM5GPO, 0x00000100, SRFL_MORE, SROM8_5G_OFDMPO, 0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM8_5G_OFDMPO + 1, 0xffff},
{BRCMS_SROM_OFDM5GLPO, 0x00000100, SRFL_MORE, SROM8_5GL_OFDMPO, 0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM8_5GL_OFDMPO + 1, 0xffff},
{BRCMS_SROM_OFDM5GHPO, 0x00000100, SRFL_MORE, SROM8_5GH_OFDMPO, 0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM8_5GH_OFDMPO + 1, 0xffff},
{BRCMS_SROM_MCS2GPO0, 0x00000100, 0, SROM8_2G_MCSPO, 0xffff},
{BRCMS_SROM_MCS2GPO1, 0x00000100, 0, SROM8_2G_MCSPO + 1, 0xffff},
{BRCMS_SROM_MCS2GPO2, 0x00000100, 0, SROM8_2G_MCSPO + 2, 0xffff},
{BRCMS_SROM_MCS2GPO3, 0x00000100, 0, SROM8_2G_MCSPO + 3, 0xffff},
{BRCMS_SROM_MCS2GPO4, 0x00000100, 0, SROM8_2G_MCSPO + 4, 0xffff},
{BRCMS_SROM_MCS2GPO5, 0x00000100, 0, SROM8_2G_MCSPO + 5, 0xffff},
{BRCMS_SROM_MCS2GPO6, 0x00000100, 0, SROM8_2G_MCSPO + 6, 0xffff},
{BRCMS_SROM_MCS2GPO7, 0x00000100, 0, SROM8_2G_MCSPO + 7, 0xffff},
{BRCMS_SROM_MCS5GPO0, 0x00000100, 0, SROM8_5G_MCSPO, 0xffff},
{BRCMS_SROM_MCS5GPO1, 0x00000100, 0, SROM8_5G_MCSPO + 1, 0xffff},
{BRCMS_SROM_MCS5GPO2, 0x00000100, 0, SROM8_5G_MCSPO + 2, 0xffff},
{BRCMS_SROM_MCS5GPO3, 0x00000100, 0, SROM8_5G_MCSPO + 3, 0xffff},
{BRCMS_SROM_MCS5GPO4, 0x00000100, 0, SROM8_5G_MCSPO + 4, 0xffff},
{BRCMS_SROM_MCS5GPO5, 0x00000100, 0, SROM8_5G_MCSPO + 5, 0xffff},
{BRCMS_SROM_MCS5GPO6, 0x00000100, 0, SROM8_5G_MCSPO + 6, 0xffff},
{BRCMS_SROM_MCS5GPO7, 0x00000100, 0, SROM8_5G_MCSPO + 7, 0xffff},
{BRCMS_SROM_MCS5GLPO0, 0x00000100, 0, SROM8_5GL_MCSPO, 0xffff},
{BRCMS_SROM_MCS5GLPO1, 0x00000100, 0, SROM8_5GL_MCSPO + 1, 0xffff},
{BRCMS_SROM_MCS5GLPO2, 0x00000100, 0, SROM8_5GL_MCSPO + 2, 0xffff},
{BRCMS_SROM_MCS5GLPO3, 0x00000100, 0, SROM8_5GL_MCSPO + 3, 0xffff},
{BRCMS_SROM_MCS5GLPO4, 0x00000100, 0, SROM8_5GL_MCSPO + 4, 0xffff},
{BRCMS_SROM_MCS5GLPO5, 0x00000100, 0, SROM8_5GL_MCSPO + 5, 0xffff},
{BRCMS_SROM_MCS5GLPO6, 0x00000100, 0, SROM8_5GL_MCSPO + 6, 0xffff},
{BRCMS_SROM_MCS5GLPO7, 0x00000100, 0, SROM8_5GL_MCSPO + 7, 0xffff},
{BRCMS_SROM_MCS5GHPO0, 0x00000100, 0, SROM8_5GH_MCSPO, 0xffff},
{BRCMS_SROM_MCS5GHPO1, 0x00000100, 0, SROM8_5GH_MCSPO + 1, 0xffff},
{BRCMS_SROM_MCS5GHPO2, 0x00000100, 0, SROM8_5GH_MCSPO + 2, 0xffff},
{BRCMS_SROM_MCS5GHPO3, 0x00000100, 0, SROM8_5GH_MCSPO + 3, 0xffff},
{BRCMS_SROM_MCS5GHPO4, 0x00000100, 0, SROM8_5GH_MCSPO + 4, 0xffff},
{BRCMS_SROM_MCS5GHPO5, 0x00000100, 0, SROM8_5GH_MCSPO + 5, 0xffff},
{BRCMS_SROM_MCS5GHPO6, 0x00000100, 0, SROM8_5GH_MCSPO + 6, 0xffff},
{BRCMS_SROM_MCS5GHPO7, 0x00000100, 0, SROM8_5GH_MCSPO + 7, 0xffff},
{BRCMS_SROM_CDDPO, 0x00000100, 0, SROM8_CDDPO, 0xffff},
{BRCMS_SROM_STBCPO, 0x00000100, 0, SROM8_STBCPO, 0xffff},
{BRCMS_SROM_BW40PO, 0x00000100, 0, SROM8_BW40PO, 0xffff},
{BRCMS_SROM_BWDUPPO, 0x00000100, 0, SROM8_BWDUPPO, 0xffff},
/* power per rate from sromrev 9 */
{BRCMS_SROM_CCKBW202GPO, 0xfffffe00, 0, SROM9_2GPO_CCKBW20, 0xffff},
{BRCMS_SROM_CCKBW20UL2GPO, 0xfffffe00, 0, SROM9_2GPO_CCKBW20UL, 0xffff},
{BRCMS_SROM_LEGOFDMBW202GPO, 0xfffffe00, SRFL_MORE,
SROM9_2GPO_LOFDMBW20, 0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM9_2GPO_LOFDMBW20 + 1, 0xffff},
{BRCMS_SROM_LEGOFDMBW20UL2GPO, 0xfffffe00, SRFL_MORE,
SROM9_2GPO_LOFDMBW20UL, 0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM9_2GPO_LOFDMBW20UL + 1, 0xffff},
{BRCMS_SROM_LEGOFDMBW205GLPO, 0xfffffe00, SRFL_MORE,
SROM9_5GLPO_LOFDMBW20, 0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM9_5GLPO_LOFDMBW20 + 1, 0xffff},
{BRCMS_SROM_LEGOFDMBW20UL5GLPO, 0xfffffe00, SRFL_MORE,
SROM9_5GLPO_LOFDMBW20UL, 0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM9_5GLPO_LOFDMBW20UL + 1, 0xffff},
{BRCMS_SROM_LEGOFDMBW205GMPO, 0xfffffe00, SRFL_MORE,
SROM9_5GMPO_LOFDMBW20, 0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM9_5GMPO_LOFDMBW20 + 1, 0xffff},
{BRCMS_SROM_LEGOFDMBW20UL5GMPO, 0xfffffe00, SRFL_MORE,
SROM9_5GMPO_LOFDMBW20UL, 0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM9_5GMPO_LOFDMBW20UL + 1, 0xffff},
{BRCMS_SROM_LEGOFDMBW205GHPO, 0xfffffe00, SRFL_MORE,
SROM9_5GHPO_LOFDMBW20, 0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM9_5GHPO_LOFDMBW20 + 1, 0xffff},
{BRCMS_SROM_LEGOFDMBW20UL5GHPO, 0xfffffe00, SRFL_MORE,
SROM9_5GHPO_LOFDMBW20UL, 0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM9_5GHPO_LOFDMBW20UL + 1, 0xffff},
{BRCMS_SROM_MCSBW202GPO, 0xfffffe00, SRFL_MORE, SROM9_2GPO_MCSBW20,
0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM9_2GPO_MCSBW20 + 1, 0xffff},
{BRCMS_SROM_MCSBW20UL2GPO, 0xfffffe00, SRFL_MORE, SROM9_2GPO_MCSBW20UL,
0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM9_2GPO_MCSBW20UL + 1, 0xffff},
{BRCMS_SROM_MCSBW402GPO, 0xfffffe00, SRFL_MORE, SROM9_2GPO_MCSBW40,
0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM9_2GPO_MCSBW40 + 1, 0xffff},
{BRCMS_SROM_MCSBW205GLPO, 0xfffffe00, SRFL_MORE, SROM9_5GLPO_MCSBW20,
0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM9_5GLPO_MCSBW20 + 1, 0xffff},
{BRCMS_SROM_MCSBW20UL5GLPO, 0xfffffe00, SRFL_MORE,
SROM9_5GLPO_MCSBW20UL, 0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM9_5GLPO_MCSBW20UL + 1, 0xffff},
{BRCMS_SROM_MCSBW405GLPO, 0xfffffe00, SRFL_MORE, SROM9_5GLPO_MCSBW40,
0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM9_5GLPO_MCSBW40 + 1, 0xffff},
{BRCMS_SROM_MCSBW205GMPO, 0xfffffe00, SRFL_MORE, SROM9_5GMPO_MCSBW20,
0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM9_5GMPO_MCSBW20 + 1, 0xffff},
{BRCMS_SROM_MCSBW20UL5GMPO, 0xfffffe00, SRFL_MORE,
SROM9_5GMPO_MCSBW20UL, 0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM9_5GMPO_MCSBW20UL + 1, 0xffff},
{BRCMS_SROM_MCSBW405GMPO, 0xfffffe00, SRFL_MORE, SROM9_5GMPO_MCSBW40,
0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM9_5GMPO_MCSBW40 + 1, 0xffff},
{BRCMS_SROM_MCSBW205GHPO, 0xfffffe00, SRFL_MORE, SROM9_5GHPO_MCSBW20,
0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM9_5GHPO_MCSBW20 + 1, 0xffff},
{BRCMS_SROM_MCSBW20UL5GHPO, 0xfffffe00, SRFL_MORE,
SROM9_5GHPO_MCSBW20UL, 0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM9_5GHPO_MCSBW20UL + 1, 0xffff},
{BRCMS_SROM_MCSBW405GHPO, 0xfffffe00, SRFL_MORE, SROM9_5GHPO_MCSBW40,
0xffff},
{BRCMS_SROM_CONT, 0, 0, SROM9_5GHPO_MCSBW40 + 1, 0xffff},
{BRCMS_SROM_MCS32PO, 0xfffffe00, 0, SROM9_PO_MCS32, 0xffff},
{BRCMS_SROM_LEGOFDM40DUPPO, 0xfffffe00, 0, SROM9_PO_LOFDM40DUP, 0xffff},
{BRCMS_SROM_NULL, 0, 0, 0, 0}
};
static const struct brcms_sromvar perpath_pci_sromvars[] = {
{BRCMS_SROM_MAXP2GA0, 0xffffff00, 0, SROM8_2G_ITT_MAXP, 0x00ff},
{BRCMS_SROM_ITT2GA0, 0xffffff00, 0, SROM8_2G_ITT_MAXP, 0xff00},
{BRCMS_SROM_ITT5GA0, 0xffffff00, 0, SROM8_5G_ITT_MAXP, 0xff00},
{BRCMS_SROM_PA2GW0A0, 0xffffff00, SRFL_PRHEX, SROM8_2G_PA, 0xffff},
{BRCMS_SROM_PA2GW1A0, 0xffffff00, SRFL_PRHEX, SROM8_2G_PA + 1, 0xffff},
{BRCMS_SROM_PA2GW2A0, 0xffffff00, SRFL_PRHEX, SROM8_2G_PA + 2, 0xffff},
{BRCMS_SROM_MAXP5GA0, 0xffffff00, 0, SROM8_5G_ITT_MAXP, 0x00ff},
{BRCMS_SROM_MAXP5GHA0, 0xffffff00, 0, SROM8_5GLH_MAXP, 0x00ff},
{BRCMS_SROM_MAXP5GLA0, 0xffffff00, 0, SROM8_5GLH_MAXP, 0xff00},
{BRCMS_SROM_PA5GW0A0, 0xffffff00, SRFL_PRHEX, SROM8_5G_PA, 0xffff},
{BRCMS_SROM_PA5GW1A0, 0xffffff00, SRFL_PRHEX, SROM8_5G_PA + 1, 0xffff},
{BRCMS_SROM_PA5GW2A0, 0xffffff00, SRFL_PRHEX, SROM8_5G_PA + 2, 0xffff},
{BRCMS_SROM_PA5GLW0A0, 0xffffff00, SRFL_PRHEX, SROM8_5GL_PA, 0xffff},
{BRCMS_SROM_PA5GLW1A0, 0xffffff00, SRFL_PRHEX, SROM8_5GL_PA + 1,
0xffff},
{BRCMS_SROM_PA5GLW2A0, 0xffffff00, SRFL_PRHEX, SROM8_5GL_PA + 2,
0xffff},
{BRCMS_SROM_PA5GHW0A0, 0xffffff00, SRFL_PRHEX, SROM8_5GH_PA, 0xffff},
{BRCMS_SROM_PA5GHW1A0, 0xffffff00, SRFL_PRHEX, SROM8_5GH_PA + 1,
0xffff},
{BRCMS_SROM_PA5GHW2A0, 0xffffff00, SRFL_PRHEX, SROM8_5GH_PA + 2,
0xffff},
{BRCMS_SROM_NULL, 0, 0, 0, 0}
};
/* crc table has the same contents for every device instance, so it can be
* shared between devices. */
static u8 brcms_srom_crc8_table[CRC8_TABLE_SIZE];
static u8 __iomem *
srom_window_address(struct si_pub *sih, u8 __iomem *curmap)
{
if (sih->ccrev < 32)
return curmap + PCI_BAR0_SPROM_OFFSET;
if (sih->cccaps & CC_CAP_SROM)
return curmap + PCI_16KB0_CCREGS_OFFSET + CC_SROM_OTP;
return NULL;
}
static uint mask_shift(u16 mask)
{
uint i;
for (i = 0; i < (sizeof(mask) << 3); i++) {
if (mask & (1 << i))
return i;
}
return 0;
}
static uint mask_width(u16 mask)
{
int i;
for (i = (sizeof(mask) << 3) - 1; i >= 0; i--) {
if (mask & (1 << i))
return (uint) (i - mask_shift(mask) + 1);
}
return 0;
}
static inline void le16_to_cpu_buf(u16 *buf, uint nwords)
{
while (nwords--)
*(buf + nwords) = le16_to_cpu(*(__le16 *)(buf + nwords));
}
static inline void cpu_to_le16_buf(u16 *buf, uint nwords)
{
while (nwords--)
*(__le16 *)(buf + nwords) = cpu_to_le16(*(buf + nwords));
}
/*
* convert binary srom data into linked list of srom variable items.
*/
static void
_initvars_srom_pci(u8 sromrev, u16 *srom, struct list_head *var_list)
{
struct brcms_srom_list_head *entry;
enum brcms_srom_id id;
u16 w;
u32 val = 0;
const struct brcms_sromvar *srv;
uint width;
uint flags;
u32 sr = (1 << sromrev);
uint p;
uint pb = SROM8_PATH0;
const uint psz = SROM8_PATH1 - SROM8_PATH0;
/* first store the srom revision */
entry = kzalloc(sizeof(struct brcms_srom_list_head), GFP_KERNEL);
entry->varid = BRCMS_SROM_REV;
entry->var_type = BRCMS_SROM_UNUMBER;
entry->uval = sromrev;
list_add(&entry->var_list, var_list);
for (srv = pci_sromvars; srv->varid != BRCMS_SROM_NULL; srv++) {
enum brcms_srom_var_type type;
u8 ea[ETH_ALEN];
u8 extra_space = 0;
if ((srv->revmask & sr) == 0)
continue;
flags = srv->flags;
id = srv->varid;
/* This entry is for mfgc only. Don't generate param for it, */
if (flags & SRFL_NOVAR)
continue;
if (flags & SRFL_ETHADDR) {
/*
* stored in string format XX:XX:XX:XX:XX:XX (17 chars)
*/
ea[0] = (srom[srv->off] >> 8) & 0xff;
ea[1] = srom[srv->off] & 0xff;
ea[2] = (srom[srv->off + 1] >> 8) & 0xff;
ea[3] = srom[srv->off + 1] & 0xff;
ea[4] = (srom[srv->off + 2] >> 8) & 0xff;
ea[5] = srom[srv->off + 2] & 0xff;
/* 17 characters + string terminator - union size */
extra_space = 18 - sizeof(s32);
type = BRCMS_SROM_STRING;
} else {
w = srom[srv->off];
val = (w & srv->mask) >> mask_shift(srv->mask);
width = mask_width(srv->mask);
while (srv->flags & SRFL_MORE) {
srv++;
if (srv->off == 0)
continue;
w = srom[srv->off];
val +=
((w & srv->mask) >> mask_shift(srv->
mask)) <<
width;
width += mask_width(srv->mask);
}
if ((flags & SRFL_NOFFS)
&& ((int)val == (1 << width) - 1))
continue;
if (flags & SRFL_CCODE) {
type = BRCMS_SROM_STRING;
} else if (flags & SRFL_LEDDC) {
/* LED Powersave duty cycle has to be scaled:
*(oncount >> 24) (offcount >> 8)
*/
u32 w32 = /* oncount */
(((val >> 8) & 0xff) << 24) |
/* offcount */
(((val & 0xff)) << 8);
type = BRCMS_SROM_UNUMBER;
val = w32;
} else if ((flags & SRFL_PRSIGN)
&& (val & (1 << (width - 1)))) {
type = BRCMS_SROM_SNUMBER;
val |= ~0 << width;
} else
type = BRCMS_SROM_UNUMBER;
}
entry = kzalloc(sizeof(struct brcms_srom_list_head) +
extra_space, GFP_KERNEL);
entry->varid = id;
entry->var_type = type;
if (flags & SRFL_ETHADDR) {
snprintf(entry->buf, 18, "%pM", ea);
} else if (flags & SRFL_CCODE) {
if (val == 0)
entry->buf[0] = '\0';
else
snprintf(entry->buf, 3, "%c%c",
(val >> 8), (val & 0xff));
} else {
entry->uval = val;
}
list_add(&entry->var_list, var_list);
}
for (p = 0; p < MAX_PATH_SROM; p++) {
for (srv = perpath_pci_sromvars;
srv->varid != BRCMS_SROM_NULL; srv++) {
if ((srv->revmask & sr) == 0)
continue;
if (srv->flags & SRFL_NOVAR)
continue;
w = srom[pb + srv->off];
val = (w & srv->mask) >> mask_shift(srv->mask);
width = mask_width(srv->mask);
/* Cheating: no per-path var is more than
* 1 word */
if ((srv->flags & SRFL_NOFFS)
&& ((int)val == (1 << width) - 1))
continue;
entry =
kzalloc(sizeof(struct brcms_srom_list_head),
GFP_KERNEL);
entry->varid = srv->varid+p;
entry->var_type = BRCMS_SROM_UNUMBER;
entry->uval = val;
list_add(&entry->var_list, var_list);
}
pb += psz;
}
}
/*
* Read in and validate sprom.
* Return 0 on success, nonzero on error.
*/
static int
sprom_read_pci(struct si_pub *sih, u8 __iomem *sprom, uint wordoff,
u16 *buf, uint nwords, bool check_crc)
{
int err = 0;
uint i;
u8 *bbuf = (u8 *)buf; /* byte buffer */
uint nbytes = nwords << 1;
/* read the sprom in bytes */
for (i = 0; i < nbytes; i++)
bbuf[i] = readb(sprom+i);
if (buf[0] == 0xffff)
/*
* The hardware thinks that an srom that starts with
* 0xffff is blank, regardless of the rest of the
* content, so declare it bad.
*/
return -ENODATA;
if (check_crc &&
crc8(brcms_srom_crc8_table, bbuf, nbytes, CRC8_INIT_VALUE) !=
CRC8_GOOD_VALUE(brcms_srom_crc8_table))
err = -EIO;
else
/* now correct the endianness of the byte array */
le16_to_cpu_buf(buf, nwords);
return err;
}
static int otp_read_pci(struct si_pub *sih, u16 *buf, uint nwords)
{
u8 *otp;
uint sz = OTP_SZ_MAX / 2; /* size in words */
int err = 0;
otp = kzalloc(OTP_SZ_MAX, GFP_ATOMIC);
if (otp == NULL)
return -ENOMEM;
err = otp_read_region(sih, OTP_HW_RGN, (u16 *) otp, &sz);
sz = min_t(uint, sz, nwords);
memcpy(buf, otp, sz * 2);
kfree(otp);
/* Check CRC */
if (buf[0] == 0xffff)
/* The hardware thinks that an srom that starts with 0xffff
* is blank, regardless of the rest of the content, so declare
* it bad.
*/
return -ENODATA;
/* fixup the endianness so crc8 will pass */
cpu_to_le16_buf(buf, sz);
if (crc8(brcms_srom_crc8_table, (u8 *) buf, sz * 2,
CRC8_INIT_VALUE) != CRC8_GOOD_VALUE(brcms_srom_crc8_table))
err = -EIO;
else
/* now correct the endianness of the byte array */
le16_to_cpu_buf(buf, sz);
return err;
}
/*
* Initialize nonvolatile variable table from sprom.
* Return 0 on success, nonzero on error.
*/
static int initvars_srom_pci(struct si_pub *sih, void __iomem *curmap)
{
u16 *srom;
u8 __iomem *sromwindow;
u8 sromrev = 0;
u32 sr;
int err = 0;
/*
* Apply CRC over SROM content regardless SROM is present or not.
*/
srom = kmalloc(SROM_MAX, GFP_ATOMIC);
if (!srom)
return -ENOMEM;
sromwindow = srom_window_address(sih, curmap);
crc8_populate_lsb(brcms_srom_crc8_table, SROM_CRC8_POLY);
if (ai_is_sprom_available(sih)) {
err = sprom_read_pci(sih, sromwindow, 0, srom,
SROM4_WORDS, true);
if (err == 0)
/* srom read and passed crc */
/* top word of sprom contains version and crc8 */
sromrev = srom[SROM4_CRCREV] & 0xff;
} else {
/* Use OTP if SPROM not available */
err = otp_read_pci(sih, srom, SROM4_WORDS);
if (err == 0)
/* OTP only contain SROM rev8/rev9 for now */
sromrev = srom[SROM4_CRCREV] & 0xff;
}
if (!err) {
struct si_info *sii = (struct si_info *)sih;
/* Bitmask for the sromrev */
sr = 1 << sromrev;
/*
* srom version check: Current valid versions: 8, 9
*/
if ((sr & 0x300) == 0) {
err = -EINVAL;
goto errout;
}
INIT_LIST_HEAD(&sii->var_list);
/* parse SROM into name=value pairs. */
_initvars_srom_pci(sromrev, srom, &sii->var_list);
}
errout:
kfree(srom);
return err;
}
void srom_free_vars(struct si_pub *sih)
{
struct si_info *sii;
struct brcms_srom_list_head *entry, *next;
sii = (struct si_info *)sih;
list_for_each_entry_safe(entry, next, &sii->var_list, var_list) {
list_del(&entry->var_list);
kfree(entry);
}
}
/*
* Initialize local vars from the right source for this platform.
* Return 0 on success, nonzero on error.
*/
int srom_var_init(struct si_pub *sih, void __iomem *curmap)
{
uint len;
len = 0;
if (curmap != NULL)
return initvars_srom_pci(sih, curmap);
return -EINVAL;
}
/*
* Search the name=value vars for a specific one and return its value.
* Returns NULL if not found.
*/
char *getvar(struct si_pub *sih, enum brcms_srom_id id)
{
struct si_info *sii;
struct brcms_srom_list_head *entry;
sii = (struct si_info *)sih;
list_for_each_entry(entry, &sii->var_list, var_list)
if (entry->varid == id)
return &entry->buf[0];
/* nothing found */
return NULL;
}
/*
* Search the vars for a specific one and return its value as
* an integer. Returns 0 if not found.-
*/
int getintvar(struct si_pub *sih, enum brcms_srom_id id)
{
struct si_info *sii;
struct brcms_srom_list_head *entry;
unsigned long res;
sii = (struct si_info *)sih;
list_for_each_entry(entry, &sii->var_list, var_list)
if (entry->varid == id) {
if (entry->var_type == BRCMS_SROM_SNUMBER ||
entry->var_type == BRCMS_SROM_UNUMBER)
return (int)entry->sval;
else if (!kstrtoul(&entry->buf[0], 0, &res))
return (int)res;
}
return 0;
}
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