2097 lines
39 KiB
C
2097 lines
39 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) ST-Ericsson SA 2010
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*
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* Author: Mattias Wallin <mattias.wallin@stericsson.com> for ST-Ericsson.
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*/
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/*
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* AB8500 register access
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* ======================
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*
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* read:
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* # echo BANK > <debugfs>/ab8500/register-bank
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* # echo ADDR > <debugfs>/ab8500/register-address
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* # cat <debugfs>/ab8500/register-value
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*
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* write:
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* # echo BANK > <debugfs>/ab8500/register-bank
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* # echo ADDR > <debugfs>/ab8500/register-address
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* # echo VALUE > <debugfs>/ab8500/register-value
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*
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* read all registers from a bank:
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* # echo BANK > <debugfs>/ab8500/register-bank
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* # cat <debugfs>/ab8500/all-bank-register
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*
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* BANK target AB8500 register bank
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* ADDR target AB8500 register address
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* VALUE decimal or 0x-prefixed hexadecimal
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*
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*
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* User Space notification on AB8500 IRQ
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* =====================================
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*
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* Allows user space entity to be notified when target AB8500 IRQ occurs.
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* When subscribed, a sysfs entry is created in ab8500.i2c platform device.
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* One can pool this file to get target IRQ occurence information.
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*
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* subscribe to an AB8500 IRQ:
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* # echo IRQ > <debugfs>/ab8500/irq-subscribe
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*
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* unsubscribe from an AB8500 IRQ:
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* # echo IRQ > <debugfs>/ab8500/irq-unsubscribe
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*
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*
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* AB8500 register formated read/write access
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* ==========================================
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*
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* Read: read data, data>>SHIFT, data&=MASK, output data
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* [0xABCDEF98] shift=12 mask=0xFFF => 0x00000CDE
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* Write: read data, data &= ~(MASK<<SHIFT), data |= (VALUE<<SHIFT), write data
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* [0xABCDEF98] shift=12 mask=0xFFF value=0x123 => [0xAB123F98]
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*
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* Usage:
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* # echo "CMD [OPTIONS] BANK ADRESS [VALUE]" > $debugfs/ab8500/hwreg
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*
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* CMD read read access
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* write write access
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*
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* BANK target reg bank
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* ADDRESS target reg address
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* VALUE (write) value to be updated
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*
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* OPTIONS
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* -d|-dec (read) output in decimal
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* -h|-hexa (read) output in 0x-hexa (default)
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* -l|-w|-b 32bit (default), 16bit or 8bit reg access
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* -m|-mask MASK 0x-hexa mask (default 0xFFFFFFFF)
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* -s|-shift SHIFT bit shift value (read:left, write:right)
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* -o|-offset OFFSET address offset to add to ADDRESS value
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*
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* Warning: bit shift operation is applied to bit-mask.
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* Warning: bit shift direction depends on read or right command.
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*/
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#include <linux/seq_file.h>
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#include <linux/uaccess.h>
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#include <linux/fs.h>
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#include <linux/init.h>
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#include <linux/debugfs.h>
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#include <linux/platform_device.h>
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#include <linux/interrupt.h>
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#include <linux/kobject.h>
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#include <linux/slab.h>
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#include <linux/irq.h>
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#include <linux/mfd/abx500.h>
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#include <linux/mfd/abx500/ab8500.h>
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#ifdef CONFIG_DEBUG_FS
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#include <linux/string.h>
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#include <linux/ctype.h>
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#endif
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static u32 debug_bank;
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static u32 debug_address;
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static int irq_ab8500;
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static int irq_first;
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static int irq_last;
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static u32 *irq_count;
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static int num_irqs;
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static struct device_attribute **dev_attr;
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static char **event_name;
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/**
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* struct ab8500_reg_range
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* @first: the first address of the range
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* @last: the last address of the range
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* @perm: access permissions for the range
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*/
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struct ab8500_reg_range {
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u8 first;
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u8 last;
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u8 perm;
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};
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/**
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* struct ab8500_prcmu_ranges
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* @num_ranges: the number of ranges in the list
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* @bankid: bank identifier
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* @range: the list of register ranges
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*/
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struct ab8500_prcmu_ranges {
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u8 num_ranges;
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u8 bankid;
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const struct ab8500_reg_range *range;
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};
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/* hwreg- "mask" and "shift" entries ressources */
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struct hwreg_cfg {
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u32 bank; /* target bank */
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unsigned long addr; /* target address */
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uint fmt; /* format */
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unsigned long mask; /* read/write mask, applied before any bit shift */
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long shift; /* bit shift (read:right shift, write:left shift */
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};
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/* fmt bit #0: 0=hexa, 1=dec */
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#define REG_FMT_DEC(c) ((c)->fmt & 0x1)
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#define REG_FMT_HEX(c) (!REG_FMT_DEC(c))
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static struct hwreg_cfg hwreg_cfg = {
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.addr = 0, /* default: invalid phys addr */
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.fmt = 0, /* default: 32bit access, hex output */
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.mask = 0xFFFFFFFF, /* default: no mask */
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.shift = 0, /* default: no bit shift */
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};
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#define AB8500_NAME_STRING "ab8500"
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#define AB8500_NUM_BANKS AB8500_DEBUG_FIELD_LAST
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#define AB8500_REV_REG 0x80
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static struct ab8500_prcmu_ranges *debug_ranges;
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static struct ab8500_prcmu_ranges ab8500_debug_ranges[AB8500_NUM_BANKS] = {
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[AB8500_M_FSM_RANK] = {
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.num_ranges = 0,
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.range = NULL,
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},
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[AB8500_SYS_CTRL1_BLOCK] = {
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.num_ranges = 3,
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.range = (struct ab8500_reg_range[]) {
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{
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.first = 0x00,
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.last = 0x02,
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},
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{
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.first = 0x42,
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.last = 0x42,
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},
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{
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.first = 0x80,
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.last = 0x81,
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},
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},
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},
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[AB8500_SYS_CTRL2_BLOCK] = {
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.num_ranges = 4,
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.range = (struct ab8500_reg_range[]) {
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{
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.first = 0x00,
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.last = 0x0D,
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},
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{
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.first = 0x0F,
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.last = 0x17,
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},
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{
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.first = 0x30,
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.last = 0x30,
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},
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{
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.first = 0x32,
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.last = 0x33,
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},
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},
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},
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[AB8500_REGU_CTRL1] = {
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.num_ranges = 3,
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.range = (struct ab8500_reg_range[]) {
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{
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.first = 0x00,
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.last = 0x00,
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},
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{
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.first = 0x03,
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.last = 0x10,
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},
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{
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.first = 0x80,
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.last = 0x84,
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},
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},
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},
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[AB8500_REGU_CTRL2] = {
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.num_ranges = 5,
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.range = (struct ab8500_reg_range[]) {
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{
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.first = 0x00,
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.last = 0x15,
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},
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{
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.first = 0x17,
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.last = 0x19,
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},
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{
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.first = 0x1B,
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.last = 0x1D,
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},
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{
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.first = 0x1F,
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.last = 0x22,
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},
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{
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.first = 0x40,
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.last = 0x44,
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},
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/*
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* 0x80-0x8B are SIM registers and should
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* not be accessed from here
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*/
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},
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},
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[AB8500_USB] = {
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.num_ranges = 2,
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.range = (struct ab8500_reg_range[]) {
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{
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.first = 0x80,
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.last = 0x83,
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},
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{
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.first = 0x87,
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.last = 0x8A,
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},
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},
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},
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[AB8500_TVOUT] = {
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.num_ranges = 9,
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.range = (struct ab8500_reg_range[]) {
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{
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.first = 0x00,
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.last = 0x12,
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},
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{
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.first = 0x15,
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.last = 0x17,
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},
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{
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.first = 0x19,
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.last = 0x21,
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},
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{
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.first = 0x27,
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.last = 0x2C,
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},
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{
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.first = 0x41,
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.last = 0x41,
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},
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{
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.first = 0x45,
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.last = 0x5B,
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},
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{
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.first = 0x5D,
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.last = 0x5D,
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},
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{
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.first = 0x69,
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.last = 0x69,
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},
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{
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.first = 0x80,
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.last = 0x81,
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},
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},
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},
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[AB8500_DBI] = {
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.num_ranges = 0,
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.range = NULL,
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},
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[AB8500_ECI_AV_ACC] = {
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.num_ranges = 1,
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.range = (struct ab8500_reg_range[]) {
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{
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.first = 0x80,
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.last = 0x82,
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},
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},
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},
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[AB8500_RESERVED] = {
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.num_ranges = 0,
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.range = NULL,
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},
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[AB8500_GPADC] = {
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.num_ranges = 1,
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.range = (struct ab8500_reg_range[]) {
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{
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.first = 0x00,
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.last = 0x08,
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},
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},
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},
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[AB8500_CHARGER] = {
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.num_ranges = 9,
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.range = (struct ab8500_reg_range[]) {
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{
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.first = 0x00,
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.last = 0x03,
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},
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{
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.first = 0x05,
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.last = 0x05,
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},
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{
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.first = 0x40,
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.last = 0x40,
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},
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{
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.first = 0x42,
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.last = 0x42,
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},
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{
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.first = 0x44,
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.last = 0x44,
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},
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{
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.first = 0x50,
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.last = 0x55,
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},
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{
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.first = 0x80,
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.last = 0x82,
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},
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{
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.first = 0xC0,
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.last = 0xC2,
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},
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{
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.first = 0xf5,
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.last = 0xf6,
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},
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},
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},
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[AB8500_GAS_GAUGE] = {
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.num_ranges = 3,
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.range = (struct ab8500_reg_range[]) {
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{
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.first = 0x00,
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.last = 0x00,
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},
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{
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.first = 0x07,
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.last = 0x0A,
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},
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{
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.first = 0x10,
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.last = 0x14,
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},
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},
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},
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[AB8500_AUDIO] = {
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.num_ranges = 1,
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.range = (struct ab8500_reg_range[]) {
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{
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.first = 0x00,
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.last = 0x6F,
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},
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},
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},
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[AB8500_INTERRUPT] = {
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.num_ranges = 0,
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.range = NULL,
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},
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[AB8500_RTC] = {
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.num_ranges = 1,
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.range = (struct ab8500_reg_range[]) {
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{
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.first = 0x00,
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.last = 0x0F,
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},
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},
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},
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[AB8500_MISC] = {
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.num_ranges = 8,
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.range = (struct ab8500_reg_range[]) {
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{
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.first = 0x00,
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.last = 0x05,
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},
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{
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.first = 0x10,
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.last = 0x15,
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},
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{
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.first = 0x20,
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.last = 0x25,
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},
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{
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.first = 0x30,
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.last = 0x35,
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},
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{
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.first = 0x40,
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.last = 0x45,
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},
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{
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.first = 0x50,
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.last = 0x50,
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},
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{
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.first = 0x60,
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.last = 0x67,
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},
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{
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.first = 0x80,
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.last = 0x80,
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},
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},
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},
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[AB8500_DEVELOPMENT] = {
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.num_ranges = 1,
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.range = (struct ab8500_reg_range[]) {
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{
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.first = 0x00,
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.last = 0x00,
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},
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},
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},
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[AB8500_DEBUG] = {
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.num_ranges = 1,
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.range = (struct ab8500_reg_range[]) {
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{
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.first = 0x05,
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.last = 0x07,
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},
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},
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},
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[AB8500_PROD_TEST] = {
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.num_ranges = 0,
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.range = NULL,
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},
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[AB8500_STE_TEST] = {
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.num_ranges = 0,
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.range = NULL,
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},
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[AB8500_OTP_EMUL] = {
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.num_ranges = 1,
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.range = (struct ab8500_reg_range[]) {
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{
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.first = 0x01,
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.last = 0x0F,
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},
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},
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},
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};
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static struct ab8500_prcmu_ranges ab8505_debug_ranges[AB8500_NUM_BANKS] = {
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[0x0] = {
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.num_ranges = 0,
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.range = NULL,
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},
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[AB8500_SYS_CTRL1_BLOCK] = {
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.num_ranges = 5,
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.range = (struct ab8500_reg_range[]) {
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{
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.first = 0x00,
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.last = 0x04,
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},
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{
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.first = 0x42,
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.last = 0x42,
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},
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{
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.first = 0x52,
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.last = 0x52,
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},
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{
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.first = 0x54,
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.last = 0x57,
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},
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{
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.first = 0x80,
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.last = 0x83,
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},
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},
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},
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[AB8500_SYS_CTRL2_BLOCK] = {
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.num_ranges = 5,
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.range = (struct ab8500_reg_range[]) {
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{
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.first = 0x00,
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.last = 0x0D,
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},
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{
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.first = 0x0F,
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.last = 0x17,
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},
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{
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.first = 0x20,
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.last = 0x20,
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},
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{
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.first = 0x30,
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.last = 0x30,
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},
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{
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.first = 0x32,
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.last = 0x3A,
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},
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},
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},
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[AB8500_REGU_CTRL1] = {
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.num_ranges = 3,
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.range = (struct ab8500_reg_range[]) {
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{
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.first = 0x00,
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.last = 0x00,
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},
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{
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.first = 0x03,
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.last = 0x11,
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},
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{
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.first = 0x80,
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.last = 0x86,
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},
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},
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},
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[AB8500_REGU_CTRL2] = {
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.num_ranges = 6,
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.range = (struct ab8500_reg_range[]) {
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{
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.first = 0x00,
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.last = 0x06,
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},
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{
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.first = 0x08,
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.last = 0x15,
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},
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{
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.first = 0x17,
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.last = 0x19,
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},
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{
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.first = 0x1B,
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.last = 0x1D,
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},
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{
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.first = 0x1F,
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.last = 0x30,
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},
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{
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.first = 0x40,
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.last = 0x48,
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},
|
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/*
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* 0x80-0x8B are SIM registers and should
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* not be accessed from here
|
|
*/
|
|
},
|
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},
|
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[AB8500_USB] = {
|
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.num_ranges = 3,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x80,
|
|
.last = 0x83,
|
|
},
|
|
{
|
|
.first = 0x87,
|
|
.last = 0x8A,
|
|
},
|
|
{
|
|
.first = 0x91,
|
|
.last = 0x94,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_TVOUT] = {
|
|
.num_ranges = 0,
|
|
.range = NULL,
|
|
},
|
|
[AB8500_DBI] = {
|
|
.num_ranges = 0,
|
|
.range = NULL,
|
|
},
|
|
[AB8500_ECI_AV_ACC] = {
|
|
.num_ranges = 1,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x80,
|
|
.last = 0x82,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_RESERVED] = {
|
|
.num_ranges = 0,
|
|
.range = NULL,
|
|
},
|
|
[AB8500_GPADC] = {
|
|
.num_ranges = 1,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x00,
|
|
.last = 0x08,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_CHARGER] = {
|
|
.num_ranges = 9,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x02,
|
|
.last = 0x03,
|
|
},
|
|
{
|
|
.first = 0x05,
|
|
.last = 0x05,
|
|
},
|
|
{
|
|
.first = 0x40,
|
|
.last = 0x44,
|
|
},
|
|
{
|
|
.first = 0x50,
|
|
.last = 0x57,
|
|
},
|
|
{
|
|
.first = 0x60,
|
|
.last = 0x60,
|
|
},
|
|
{
|
|
.first = 0xA0,
|
|
.last = 0xA7,
|
|
},
|
|
{
|
|
.first = 0xAF,
|
|
.last = 0xB2,
|
|
},
|
|
{
|
|
.first = 0xC0,
|
|
.last = 0xC2,
|
|
},
|
|
{
|
|
.first = 0xF5,
|
|
.last = 0xF5,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_GAS_GAUGE] = {
|
|
.num_ranges = 3,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x00,
|
|
.last = 0x00,
|
|
},
|
|
{
|
|
.first = 0x07,
|
|
.last = 0x0A,
|
|
},
|
|
{
|
|
.first = 0x10,
|
|
.last = 0x14,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_AUDIO] = {
|
|
.num_ranges = 1,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x00,
|
|
.last = 0x83,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_INTERRUPT] = {
|
|
.num_ranges = 11,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x00,
|
|
.last = 0x04,
|
|
},
|
|
{
|
|
.first = 0x06,
|
|
.last = 0x07,
|
|
},
|
|
{
|
|
.first = 0x09,
|
|
.last = 0x09,
|
|
},
|
|
{
|
|
.first = 0x0B,
|
|
.last = 0x0C,
|
|
},
|
|
{
|
|
.first = 0x12,
|
|
.last = 0x15,
|
|
},
|
|
{
|
|
.first = 0x18,
|
|
.last = 0x18,
|
|
},
|
|
/* Latch registers should not be read here */
|
|
{
|
|
.first = 0x40,
|
|
.last = 0x44,
|
|
},
|
|
{
|
|
.first = 0x46,
|
|
.last = 0x49,
|
|
},
|
|
{
|
|
.first = 0x4B,
|
|
.last = 0x4D,
|
|
},
|
|
{
|
|
.first = 0x52,
|
|
.last = 0x55,
|
|
},
|
|
{
|
|
.first = 0x58,
|
|
.last = 0x58,
|
|
},
|
|
/* LatchHier registers should not be read here */
|
|
},
|
|
},
|
|
[AB8500_RTC] = {
|
|
.num_ranges = 2,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x00,
|
|
.last = 0x14,
|
|
},
|
|
{
|
|
.first = 0x16,
|
|
.last = 0x17,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_MISC] = {
|
|
.num_ranges = 8,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x00,
|
|
.last = 0x06,
|
|
},
|
|
{
|
|
.first = 0x10,
|
|
.last = 0x16,
|
|
},
|
|
{
|
|
.first = 0x20,
|
|
.last = 0x26,
|
|
},
|
|
{
|
|
.first = 0x30,
|
|
.last = 0x36,
|
|
},
|
|
{
|
|
.first = 0x40,
|
|
.last = 0x46,
|
|
},
|
|
{
|
|
.first = 0x50,
|
|
.last = 0x50,
|
|
},
|
|
{
|
|
.first = 0x60,
|
|
.last = 0x6B,
|
|
},
|
|
{
|
|
.first = 0x80,
|
|
.last = 0x82,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_DEVELOPMENT] = {
|
|
.num_ranges = 2,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x00,
|
|
.last = 0x00,
|
|
},
|
|
{
|
|
.first = 0x05,
|
|
.last = 0x05,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_DEBUG] = {
|
|
.num_ranges = 1,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x05,
|
|
.last = 0x07,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_PROD_TEST] = {
|
|
.num_ranges = 0,
|
|
.range = NULL,
|
|
},
|
|
[AB8500_STE_TEST] = {
|
|
.num_ranges = 0,
|
|
.range = NULL,
|
|
},
|
|
[AB8500_OTP_EMUL] = {
|
|
.num_ranges = 1,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x01,
|
|
.last = 0x15,
|
|
},
|
|
},
|
|
},
|
|
};
|
|
|
|
static struct ab8500_prcmu_ranges ab8540_debug_ranges[AB8500_NUM_BANKS] = {
|
|
[AB8500_M_FSM_RANK] = {
|
|
.num_ranges = 1,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x00,
|
|
.last = 0x0B,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_SYS_CTRL1_BLOCK] = {
|
|
.num_ranges = 6,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x00,
|
|
.last = 0x04,
|
|
},
|
|
{
|
|
.first = 0x42,
|
|
.last = 0x42,
|
|
},
|
|
{
|
|
.first = 0x50,
|
|
.last = 0x54,
|
|
},
|
|
{
|
|
.first = 0x57,
|
|
.last = 0x57,
|
|
},
|
|
{
|
|
.first = 0x80,
|
|
.last = 0x83,
|
|
},
|
|
{
|
|
.first = 0x90,
|
|
.last = 0x90,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_SYS_CTRL2_BLOCK] = {
|
|
.num_ranges = 5,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x00,
|
|
.last = 0x0D,
|
|
},
|
|
{
|
|
.first = 0x0F,
|
|
.last = 0x10,
|
|
},
|
|
{
|
|
.first = 0x20,
|
|
.last = 0x21,
|
|
},
|
|
{
|
|
.first = 0x32,
|
|
.last = 0x3C,
|
|
},
|
|
{
|
|
.first = 0x40,
|
|
.last = 0x42,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_REGU_CTRL1] = {
|
|
.num_ranges = 4,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x03,
|
|
.last = 0x15,
|
|
},
|
|
{
|
|
.first = 0x20,
|
|
.last = 0x20,
|
|
},
|
|
{
|
|
.first = 0x80,
|
|
.last = 0x85,
|
|
},
|
|
{
|
|
.first = 0x87,
|
|
.last = 0x88,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_REGU_CTRL2] = {
|
|
.num_ranges = 8,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x00,
|
|
.last = 0x06,
|
|
},
|
|
{
|
|
.first = 0x08,
|
|
.last = 0x15,
|
|
},
|
|
{
|
|
.first = 0x17,
|
|
.last = 0x19,
|
|
},
|
|
{
|
|
.first = 0x1B,
|
|
.last = 0x1D,
|
|
},
|
|
{
|
|
.first = 0x1F,
|
|
.last = 0x2F,
|
|
},
|
|
{
|
|
.first = 0x31,
|
|
.last = 0x3A,
|
|
},
|
|
{
|
|
.first = 0x43,
|
|
.last = 0x44,
|
|
},
|
|
{
|
|
.first = 0x48,
|
|
.last = 0x49,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_USB] = {
|
|
.num_ranges = 3,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x80,
|
|
.last = 0x83,
|
|
},
|
|
{
|
|
.first = 0x87,
|
|
.last = 0x8A,
|
|
},
|
|
{
|
|
.first = 0x91,
|
|
.last = 0x94,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_TVOUT] = {
|
|
.num_ranges = 0,
|
|
.range = NULL
|
|
},
|
|
[AB8500_DBI] = {
|
|
.num_ranges = 4,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x00,
|
|
.last = 0x07,
|
|
},
|
|
{
|
|
.first = 0x10,
|
|
.last = 0x11,
|
|
},
|
|
{
|
|
.first = 0x20,
|
|
.last = 0x21,
|
|
},
|
|
{
|
|
.first = 0x30,
|
|
.last = 0x43,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_ECI_AV_ACC] = {
|
|
.num_ranges = 2,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x00,
|
|
.last = 0x03,
|
|
},
|
|
{
|
|
.first = 0x80,
|
|
.last = 0x82,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_RESERVED] = {
|
|
.num_ranges = 0,
|
|
.range = NULL,
|
|
},
|
|
[AB8500_GPADC] = {
|
|
.num_ranges = 4,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x00,
|
|
.last = 0x01,
|
|
},
|
|
{
|
|
.first = 0x04,
|
|
.last = 0x06,
|
|
},
|
|
{
|
|
.first = 0x09,
|
|
.last = 0x0A,
|
|
},
|
|
{
|
|
.first = 0x10,
|
|
.last = 0x14,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_CHARGER] = {
|
|
.num_ranges = 10,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x00,
|
|
.last = 0x00,
|
|
},
|
|
{
|
|
.first = 0x02,
|
|
.last = 0x05,
|
|
},
|
|
{
|
|
.first = 0x40,
|
|
.last = 0x44,
|
|
},
|
|
{
|
|
.first = 0x50,
|
|
.last = 0x57,
|
|
},
|
|
{
|
|
.first = 0x60,
|
|
.last = 0x60,
|
|
},
|
|
{
|
|
.first = 0x70,
|
|
.last = 0x70,
|
|
},
|
|
{
|
|
.first = 0xA0,
|
|
.last = 0xA9,
|
|
},
|
|
{
|
|
.first = 0xAF,
|
|
.last = 0xB2,
|
|
},
|
|
{
|
|
.first = 0xC0,
|
|
.last = 0xC6,
|
|
},
|
|
{
|
|
.first = 0xF5,
|
|
.last = 0xF5,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_GAS_GAUGE] = {
|
|
.num_ranges = 3,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x00,
|
|
.last = 0x00,
|
|
},
|
|
{
|
|
.first = 0x07,
|
|
.last = 0x0A,
|
|
},
|
|
{
|
|
.first = 0x10,
|
|
.last = 0x14,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_AUDIO] = {
|
|
.num_ranges = 1,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x00,
|
|
.last = 0x9f,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_INTERRUPT] = {
|
|
.num_ranges = 6,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x00,
|
|
.last = 0x05,
|
|
},
|
|
{
|
|
.first = 0x0B,
|
|
.last = 0x0D,
|
|
},
|
|
{
|
|
.first = 0x12,
|
|
.last = 0x20,
|
|
},
|
|
/* Latch registers should not be read here */
|
|
{
|
|
.first = 0x40,
|
|
.last = 0x45,
|
|
},
|
|
{
|
|
.first = 0x4B,
|
|
.last = 0x4D,
|
|
},
|
|
{
|
|
.first = 0x52,
|
|
.last = 0x60,
|
|
},
|
|
/* LatchHier registers should not be read here */
|
|
},
|
|
},
|
|
[AB8500_RTC] = {
|
|
.num_ranges = 3,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x00,
|
|
.last = 0x07,
|
|
},
|
|
{
|
|
.first = 0x0B,
|
|
.last = 0x18,
|
|
},
|
|
{
|
|
.first = 0x20,
|
|
.last = 0x25,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_MISC] = {
|
|
.num_ranges = 9,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x00,
|
|
.last = 0x06,
|
|
},
|
|
{
|
|
.first = 0x10,
|
|
.last = 0x16,
|
|
},
|
|
{
|
|
.first = 0x20,
|
|
.last = 0x26,
|
|
},
|
|
{
|
|
.first = 0x30,
|
|
.last = 0x36,
|
|
},
|
|
{
|
|
.first = 0x40,
|
|
.last = 0x49,
|
|
},
|
|
{
|
|
.first = 0x50,
|
|
.last = 0x50,
|
|
},
|
|
{
|
|
.first = 0x60,
|
|
.last = 0x6B,
|
|
},
|
|
{
|
|
.first = 0x70,
|
|
.last = 0x74,
|
|
},
|
|
{
|
|
.first = 0x80,
|
|
.last = 0x82,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_DEVELOPMENT] = {
|
|
.num_ranges = 3,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x00,
|
|
.last = 0x01,
|
|
},
|
|
{
|
|
.first = 0x06,
|
|
.last = 0x06,
|
|
},
|
|
{
|
|
.first = 0x10,
|
|
.last = 0x21,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_DEBUG] = {
|
|
.num_ranges = 3,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x01,
|
|
.last = 0x0C,
|
|
},
|
|
{
|
|
.first = 0x0E,
|
|
.last = 0x11,
|
|
},
|
|
{
|
|
.first = 0x80,
|
|
.last = 0x81,
|
|
},
|
|
},
|
|
},
|
|
[AB8500_PROD_TEST] = {
|
|
.num_ranges = 0,
|
|
.range = NULL,
|
|
},
|
|
[AB8500_STE_TEST] = {
|
|
.num_ranges = 0,
|
|
.range = NULL,
|
|
},
|
|
[AB8500_OTP_EMUL] = {
|
|
.num_ranges = 1,
|
|
.range = (struct ab8500_reg_range[]) {
|
|
{
|
|
.first = 0x00,
|
|
.last = 0x3F,
|
|
},
|
|
},
|
|
},
|
|
};
|
|
|
|
static irqreturn_t ab8500_debug_handler(int irq, void *data)
|
|
{
|
|
char buf[16];
|
|
struct kobject *kobj = (struct kobject *)data;
|
|
unsigned int irq_abb = irq - irq_first;
|
|
|
|
if (irq_abb < num_irqs)
|
|
irq_count[irq_abb]++;
|
|
/*
|
|
* This makes it possible to use poll for events (EPOLLPRI | EPOLLERR)
|
|
* from userspace on sysfs file named <irq-nr>
|
|
*/
|
|
sprintf(buf, "%d", irq);
|
|
sysfs_notify(kobj, NULL, buf);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
/* Prints to seq_file or log_buf */
|
|
static int ab8500_registers_print(struct device *dev, u32 bank,
|
|
struct seq_file *s)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < debug_ranges[bank].num_ranges; i++) {
|
|
u32 reg;
|
|
|
|
for (reg = debug_ranges[bank].range[i].first;
|
|
reg <= debug_ranges[bank].range[i].last;
|
|
reg++) {
|
|
u8 value;
|
|
int err;
|
|
|
|
err = abx500_get_register_interruptible(dev,
|
|
(u8)bank, (u8)reg, &value);
|
|
if (err < 0) {
|
|
dev_err(dev, "ab->read fail %d\n", err);
|
|
return err;
|
|
}
|
|
|
|
if (s) {
|
|
seq_printf(s, " [0x%02X/0x%02X]: 0x%02X\n",
|
|
bank, reg, value);
|
|
/*
|
|
* Error is not returned here since
|
|
* the output is wanted in any case
|
|
*/
|
|
if (seq_has_overflowed(s))
|
|
return 0;
|
|
} else {
|
|
dev_info(dev, " [0x%02X/0x%02X]: 0x%02X\n",
|
|
bank, reg, value);
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ab8500_bank_registers_show(struct seq_file *s, void *p)
|
|
{
|
|
struct device *dev = s->private;
|
|
u32 bank = debug_bank;
|
|
|
|
seq_puts(s, AB8500_NAME_STRING " register values:\n");
|
|
|
|
seq_printf(s, " bank 0x%02X:\n", bank);
|
|
|
|
return ab8500_registers_print(dev, bank, s);
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(ab8500_bank_registers);
|
|
|
|
static int ab8500_print_all_banks(struct seq_file *s, void *p)
|
|
{
|
|
struct device *dev = s->private;
|
|
unsigned int i;
|
|
|
|
seq_puts(s, AB8500_NAME_STRING " register values:\n");
|
|
|
|
for (i = 0; i < AB8500_NUM_BANKS; i++) {
|
|
int err;
|
|
|
|
seq_printf(s, " bank 0x%02X:\n", i);
|
|
err = ab8500_registers_print(dev, i, s);
|
|
if (err)
|
|
return err;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Dump registers to kernel log */
|
|
void ab8500_dump_all_banks(struct device *dev)
|
|
{
|
|
unsigned int i;
|
|
|
|
dev_info(dev, "ab8500 register values:\n");
|
|
|
|
for (i = 1; i < AB8500_NUM_BANKS; i++) {
|
|
dev_info(dev, " bank 0x%02X:\n", i);
|
|
ab8500_registers_print(dev, i, NULL);
|
|
}
|
|
}
|
|
|
|
static int ab8500_all_banks_open(struct inode *inode, struct file *file)
|
|
{
|
|
struct seq_file *s;
|
|
int err;
|
|
|
|
err = single_open(file, ab8500_print_all_banks, inode->i_private);
|
|
if (!err) {
|
|
/* Default buf size in seq_read is not enough */
|
|
s = (struct seq_file *)file->private_data;
|
|
s->size = (PAGE_SIZE * 2);
|
|
s->buf = kmalloc(s->size, GFP_KERNEL);
|
|
if (!s->buf) {
|
|
single_release(inode, file);
|
|
err = -ENOMEM;
|
|
}
|
|
}
|
|
return err;
|
|
}
|
|
|
|
static const struct file_operations ab8500_all_banks_fops = {
|
|
.open = ab8500_all_banks_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
.owner = THIS_MODULE,
|
|
};
|
|
|
|
static int ab8500_bank_print(struct seq_file *s, void *p)
|
|
{
|
|
seq_printf(s, "0x%02X\n", debug_bank);
|
|
return 0;
|
|
}
|
|
|
|
static int ab8500_bank_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, ab8500_bank_print, inode->i_private);
|
|
}
|
|
|
|
static ssize_t ab8500_bank_write(struct file *file,
|
|
const char __user *user_buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct device *dev = ((struct seq_file *)(file->private_data))->private;
|
|
unsigned long user_bank;
|
|
int err;
|
|
|
|
err = kstrtoul_from_user(user_buf, count, 0, &user_bank);
|
|
if (err)
|
|
return err;
|
|
|
|
if (user_bank >= AB8500_NUM_BANKS) {
|
|
dev_err(dev, "debugfs error input > number of banks\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
debug_bank = user_bank;
|
|
|
|
return count;
|
|
}
|
|
|
|
static int ab8500_address_print(struct seq_file *s, void *p)
|
|
{
|
|
seq_printf(s, "0x%02X\n", debug_address);
|
|
return 0;
|
|
}
|
|
|
|
static int ab8500_address_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, ab8500_address_print, inode->i_private);
|
|
}
|
|
|
|
static ssize_t ab8500_address_write(struct file *file,
|
|
const char __user *user_buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct device *dev = ((struct seq_file *)(file->private_data))->private;
|
|
unsigned long user_address;
|
|
int err;
|
|
|
|
err = kstrtoul_from_user(user_buf, count, 0, &user_address);
|
|
if (err)
|
|
return err;
|
|
|
|
if (user_address > 0xff) {
|
|
dev_err(dev, "debugfs error input > 0xff\n");
|
|
return -EINVAL;
|
|
}
|
|
debug_address = user_address;
|
|
|
|
return count;
|
|
}
|
|
|
|
static int ab8500_val_print(struct seq_file *s, void *p)
|
|
{
|
|
struct device *dev = s->private;
|
|
int ret;
|
|
u8 regvalue;
|
|
|
|
ret = abx500_get_register_interruptible(dev,
|
|
(u8)debug_bank, (u8)debug_address, ®value);
|
|
if (ret < 0) {
|
|
dev_err(dev, "abx500_get_reg fail %d, %d\n",
|
|
ret, __LINE__);
|
|
return -EINVAL;
|
|
}
|
|
seq_printf(s, "0x%02X\n", regvalue);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ab8500_val_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, ab8500_val_print, inode->i_private);
|
|
}
|
|
|
|
static ssize_t ab8500_val_write(struct file *file,
|
|
const char __user *user_buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct device *dev = ((struct seq_file *)(file->private_data))->private;
|
|
unsigned long user_val;
|
|
int err;
|
|
|
|
err = kstrtoul_from_user(user_buf, count, 0, &user_val);
|
|
if (err)
|
|
return err;
|
|
|
|
if (user_val > 0xff) {
|
|
dev_err(dev, "debugfs error input > 0xff\n");
|
|
return -EINVAL;
|
|
}
|
|
err = abx500_set_register_interruptible(dev,
|
|
(u8)debug_bank, debug_address, (u8)user_val);
|
|
if (err < 0) {
|
|
pr_err("abx500_set_reg failed %d, %d", err, __LINE__);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
/*
|
|
* Interrupt status
|
|
*/
|
|
static u32 num_interrupts[AB8500_MAX_NR_IRQS];
|
|
static u32 num_wake_interrupts[AB8500_MAX_NR_IRQS];
|
|
static int num_interrupt_lines;
|
|
|
|
void ab8500_debug_register_interrupt(int line)
|
|
{
|
|
if (line < num_interrupt_lines)
|
|
num_interrupts[line]++;
|
|
}
|
|
|
|
static int ab8500_interrupts_show(struct seq_file *s, void *p)
|
|
{
|
|
int line;
|
|
|
|
seq_puts(s, "name: number: irq: number of: wake:\n");
|
|
|
|
for (line = 0; line < num_interrupt_lines; line++) {
|
|
seq_printf(s, "%3i: %4i %6i %4i\n",
|
|
line,
|
|
line + irq_first,
|
|
num_interrupts[line],
|
|
num_wake_interrupts[line]);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(ab8500_interrupts);
|
|
|
|
/*
|
|
* - HWREG DB8500 formated routines
|
|
*/
|
|
static int ab8500_hwreg_print(struct seq_file *s, void *d)
|
|
{
|
|
struct device *dev = s->private;
|
|
int ret;
|
|
u8 regvalue;
|
|
|
|
ret = abx500_get_register_interruptible(dev,
|
|
(u8)hwreg_cfg.bank, (u8)hwreg_cfg.addr, ®value);
|
|
if (ret < 0) {
|
|
dev_err(dev, "abx500_get_reg fail %d, %d\n",
|
|
ret, __LINE__);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (hwreg_cfg.shift >= 0)
|
|
regvalue >>= hwreg_cfg.shift;
|
|
else
|
|
regvalue <<= -hwreg_cfg.shift;
|
|
regvalue &= hwreg_cfg.mask;
|
|
|
|
if (REG_FMT_DEC(&hwreg_cfg))
|
|
seq_printf(s, "%d\n", regvalue);
|
|
else
|
|
seq_printf(s, "0x%02X\n", regvalue);
|
|
return 0;
|
|
}
|
|
|
|
static int ab8500_hwreg_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, ab8500_hwreg_print, inode->i_private);
|
|
}
|
|
|
|
#define AB8500_SUPPLY_CONTROL_CONFIG_1 0x01
|
|
#define AB8500_SUPPLY_CONTROL_REG 0x00
|
|
#define AB8500_FIRST_SIM_REG 0x80
|
|
#define AB8500_LAST_SIM_REG 0x8B
|
|
#define AB8505_LAST_SIM_REG 0x8C
|
|
|
|
static int ab8500_modem_show(struct seq_file *s, void *p)
|
|
{
|
|
struct device *dev = s->private;
|
|
struct ab8500 *ab8500;
|
|
int err;
|
|
u8 value;
|
|
u8 orig_value;
|
|
u32 bank = AB8500_REGU_CTRL2;
|
|
u32 last_sim_reg = AB8500_LAST_SIM_REG;
|
|
u32 reg;
|
|
|
|
ab8500 = dev_get_drvdata(dev->parent);
|
|
dev_warn(dev, "WARNING! This operation can interfer with modem side\n"
|
|
"and should only be done with care\n");
|
|
|
|
err = abx500_get_register_interruptible(dev,
|
|
AB8500_REGU_CTRL1, AB8500_SUPPLY_CONTROL_REG, &orig_value);
|
|
if (err < 0)
|
|
goto report_read_failure;
|
|
|
|
/* Config 1 will allow APE side to read SIM registers */
|
|
err = abx500_set_register_interruptible(dev,
|
|
AB8500_REGU_CTRL1, AB8500_SUPPLY_CONTROL_REG,
|
|
AB8500_SUPPLY_CONTROL_CONFIG_1);
|
|
if (err < 0)
|
|
goto report_write_failure;
|
|
|
|
seq_printf(s, " bank 0x%02X:\n", bank);
|
|
|
|
if (is_ab9540(ab8500) || is_ab8505(ab8500))
|
|
last_sim_reg = AB8505_LAST_SIM_REG;
|
|
|
|
for (reg = AB8500_FIRST_SIM_REG; reg <= last_sim_reg; reg++) {
|
|
err = abx500_get_register_interruptible(dev,
|
|
bank, reg, &value);
|
|
if (err < 0)
|
|
goto report_read_failure;
|
|
|
|
seq_printf(s, " [0x%02X/0x%02X]: 0x%02X\n", bank, reg, value);
|
|
}
|
|
err = abx500_set_register_interruptible(dev,
|
|
AB8500_REGU_CTRL1, AB8500_SUPPLY_CONTROL_REG, orig_value);
|
|
if (err < 0)
|
|
goto report_write_failure;
|
|
|
|
return 0;
|
|
|
|
report_read_failure:
|
|
dev_err(dev, "ab->read fail %d\n", err);
|
|
return err;
|
|
|
|
report_write_failure:
|
|
dev_err(dev, "ab->write fail %d\n", err);
|
|
return err;
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(ab8500_modem);
|
|
|
|
/*
|
|
* return length of an ASCII numerical value, 0 is string is not a
|
|
* numerical value.
|
|
* string shall start at value 1st char.
|
|
* string can be tailed with \0 or space or newline chars only.
|
|
* value can be decimal or hexadecimal (prefixed 0x or 0X).
|
|
*/
|
|
static int strval_len(char *b)
|
|
{
|
|
char *s = b;
|
|
|
|
if ((*s == '0') && ((*(s+1) == 'x') || (*(s+1) == 'X'))) {
|
|
s += 2;
|
|
for (; *s && (*s != ' ') && (*s != '\n'); s++) {
|
|
if (!isxdigit(*s))
|
|
return 0;
|
|
}
|
|
} else {
|
|
if (*s == '-')
|
|
s++;
|
|
for (; *s && (*s != ' ') && (*s != '\n'); s++) {
|
|
if (!isdigit(*s))
|
|
return 0;
|
|
}
|
|
}
|
|
return (int) (s-b);
|
|
}
|
|
|
|
/*
|
|
* parse hwreg input data.
|
|
* update global hwreg_cfg only if input data syntax is ok.
|
|
*/
|
|
static ssize_t hwreg_common_write(char *b, struct hwreg_cfg *cfg,
|
|
struct device *dev)
|
|
{
|
|
uint write, val = 0;
|
|
u8 regvalue;
|
|
int ret;
|
|
struct hwreg_cfg loc = {
|
|
.bank = 0, /* default: invalid phys addr */
|
|
.addr = 0, /* default: invalid phys addr */
|
|
.fmt = 0, /* default: 32bit access, hex output */
|
|
.mask = 0xFFFFFFFF, /* default: no mask */
|
|
.shift = 0, /* default: no bit shift */
|
|
};
|
|
|
|
/* read or write ? */
|
|
if (!strncmp(b, "read ", 5)) {
|
|
write = 0;
|
|
b += 5;
|
|
} else if (!strncmp(b, "write ", 6)) {
|
|
write = 1;
|
|
b += 6;
|
|
} else
|
|
return -EINVAL;
|
|
|
|
/* OPTIONS -l|-w|-b -s -m -o */
|
|
while ((*b == ' ') || (*b == '-')) {
|
|
if (*(b-1) != ' ') {
|
|
b++;
|
|
continue;
|
|
}
|
|
if ((!strncmp(b, "-d ", 3)) ||
|
|
(!strncmp(b, "-dec ", 5))) {
|
|
b += (*(b+2) == ' ') ? 3 : 5;
|
|
loc.fmt |= (1<<0);
|
|
} else if ((!strncmp(b, "-h ", 3)) ||
|
|
(!strncmp(b, "-hex ", 5))) {
|
|
b += (*(b+2) == ' ') ? 3 : 5;
|
|
loc.fmt &= ~(1<<0);
|
|
} else if ((!strncmp(b, "-m ", 3)) ||
|
|
(!strncmp(b, "-mask ", 6))) {
|
|
b += (*(b+2) == ' ') ? 3 : 6;
|
|
if (strval_len(b) == 0)
|
|
return -EINVAL;
|
|
ret = kstrtoul(b, 0, &loc.mask);
|
|
if (ret)
|
|
return ret;
|
|
} else if ((!strncmp(b, "-s ", 3)) ||
|
|
(!strncmp(b, "-shift ", 7))) {
|
|
b += (*(b+2) == ' ') ? 3 : 7;
|
|
if (strval_len(b) == 0)
|
|
return -EINVAL;
|
|
ret = kstrtol(b, 0, &loc.shift);
|
|
if (ret)
|
|
return ret;
|
|
} else {
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
/* get arg BANK and ADDRESS */
|
|
if (strval_len(b) == 0)
|
|
return -EINVAL;
|
|
ret = kstrtouint(b, 0, &loc.bank);
|
|
if (ret)
|
|
return ret;
|
|
while (*b == ' ')
|
|
b++;
|
|
if (strval_len(b) == 0)
|
|
return -EINVAL;
|
|
ret = kstrtoul(b, 0, &loc.addr);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (write) {
|
|
while (*b == ' ')
|
|
b++;
|
|
if (strval_len(b) == 0)
|
|
return -EINVAL;
|
|
ret = kstrtouint(b, 0, &val);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
/* args are ok, update target cfg (mainly for read) */
|
|
*cfg = loc;
|
|
|
|
#ifdef ABB_HWREG_DEBUG
|
|
pr_warn("HWREG request: %s, %s,\n", (write) ? "write" : "read",
|
|
REG_FMT_DEC(cfg) ? "decimal" : "hexa");
|
|
pr_warn(" addr=0x%08X, mask=0x%X, shift=%d" "value=0x%X\n",
|
|
cfg->addr, cfg->mask, cfg->shift, val);
|
|
#endif
|
|
|
|
if (!write)
|
|
return 0;
|
|
|
|
ret = abx500_get_register_interruptible(dev,
|
|
(u8)cfg->bank, (u8)cfg->addr, ®value);
|
|
if (ret < 0) {
|
|
dev_err(dev, "abx500_get_reg fail %d, %d\n",
|
|
ret, __LINE__);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (cfg->shift >= 0) {
|
|
regvalue &= ~(cfg->mask << (cfg->shift));
|
|
val = (val & cfg->mask) << (cfg->shift);
|
|
} else {
|
|
regvalue &= ~(cfg->mask >> (-cfg->shift));
|
|
val = (val & cfg->mask) >> (-cfg->shift);
|
|
}
|
|
val = val | regvalue;
|
|
|
|
ret = abx500_set_register_interruptible(dev,
|
|
(u8)cfg->bank, (u8)cfg->addr, (u8)val);
|
|
if (ret < 0) {
|
|
pr_err("abx500_set_reg failed %d, %d", ret, __LINE__);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t ab8500_hwreg_write(struct file *file,
|
|
const char __user *user_buf, size_t count, loff_t *ppos)
|
|
{
|
|
struct device *dev = ((struct seq_file *)(file->private_data))->private;
|
|
char buf[128];
|
|
int buf_size, ret;
|
|
|
|
/* Get userspace string and assure termination */
|
|
buf_size = min((int)count, (int)(sizeof(buf)-1));
|
|
if (copy_from_user(buf, user_buf, buf_size))
|
|
return -EFAULT;
|
|
buf[buf_size] = 0;
|
|
|
|
/* get args and process */
|
|
ret = hwreg_common_write(buf, &hwreg_cfg, dev);
|
|
return (ret) ? ret : buf_size;
|
|
}
|
|
|
|
/*
|
|
* - irq subscribe/unsubscribe stuff
|
|
*/
|
|
static int ab8500_subscribe_unsubscribe_print(struct seq_file *s, void *p)
|
|
{
|
|
seq_printf(s, "%d\n", irq_first);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ab8500_subscribe_unsubscribe_open(struct inode *inode,
|
|
struct file *file)
|
|
{
|
|
return single_open(file, ab8500_subscribe_unsubscribe_print,
|
|
inode->i_private);
|
|
}
|
|
|
|
/*
|
|
* Userspace should use poll() on this file. When an event occur
|
|
* the blocking poll will be released.
|
|
*/
|
|
static ssize_t show_irq(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
unsigned long name;
|
|
unsigned int irq_index;
|
|
int err;
|
|
|
|
err = kstrtoul(attr->attr.name, 0, &name);
|
|
if (err)
|
|
return err;
|
|
|
|
irq_index = name - irq_first;
|
|
if (irq_index >= num_irqs)
|
|
return -EINVAL;
|
|
|
|
return sprintf(buf, "%u\n", irq_count[irq_index]);
|
|
}
|
|
|
|
static ssize_t ab8500_subscribe_write(struct file *file,
|
|
const char __user *user_buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct device *dev = ((struct seq_file *)(file->private_data))->private;
|
|
unsigned long user_val;
|
|
int err;
|
|
unsigned int irq_index;
|
|
|
|
err = kstrtoul_from_user(user_buf, count, 0, &user_val);
|
|
if (err)
|
|
return err;
|
|
|
|
if (user_val < irq_first) {
|
|
dev_err(dev, "debugfs error input < %d\n", irq_first);
|
|
return -EINVAL;
|
|
}
|
|
if (user_val > irq_last) {
|
|
dev_err(dev, "debugfs error input > %d\n", irq_last);
|
|
return -EINVAL;
|
|
}
|
|
|
|
irq_index = user_val - irq_first;
|
|
if (irq_index >= num_irqs)
|
|
return -EINVAL;
|
|
|
|
/*
|
|
* This will create a sysfs file named <irq-nr> which userspace can
|
|
* use to select or poll and get the AB8500 events
|
|
*/
|
|
dev_attr[irq_index] = kmalloc(sizeof(struct device_attribute),
|
|
GFP_KERNEL);
|
|
if (!dev_attr[irq_index])
|
|
return -ENOMEM;
|
|
|
|
event_name[irq_index] = kasprintf(GFP_KERNEL, "%lu", user_val);
|
|
if (!event_name[irq_index])
|
|
return -ENOMEM;
|
|
|
|
dev_attr[irq_index]->show = show_irq;
|
|
dev_attr[irq_index]->store = NULL;
|
|
dev_attr[irq_index]->attr.name = event_name[irq_index];
|
|
dev_attr[irq_index]->attr.mode = S_IRUGO;
|
|
err = sysfs_create_file(&dev->kobj, &dev_attr[irq_index]->attr);
|
|
if (err < 0) {
|
|
pr_info("sysfs_create_file failed %d\n", err);
|
|
return err;
|
|
}
|
|
|
|
err = request_threaded_irq(user_val, NULL, ab8500_debug_handler,
|
|
IRQF_SHARED | IRQF_NO_SUSPEND | IRQF_ONESHOT,
|
|
"ab8500-debug", &dev->kobj);
|
|
if (err < 0) {
|
|
pr_info("request_threaded_irq failed %d, %lu\n",
|
|
err, user_val);
|
|
sysfs_remove_file(&dev->kobj, &dev_attr[irq_index]->attr);
|
|
return err;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t ab8500_unsubscribe_write(struct file *file,
|
|
const char __user *user_buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct device *dev = ((struct seq_file *)(file->private_data))->private;
|
|
unsigned long user_val;
|
|
int err;
|
|
unsigned int irq_index;
|
|
|
|
err = kstrtoul_from_user(user_buf, count, 0, &user_val);
|
|
if (err)
|
|
return err;
|
|
|
|
if (user_val < irq_first) {
|
|
dev_err(dev, "debugfs error input < %d\n", irq_first);
|
|
return -EINVAL;
|
|
}
|
|
if (user_val > irq_last) {
|
|
dev_err(dev, "debugfs error input > %d\n", irq_last);
|
|
return -EINVAL;
|
|
}
|
|
|
|
irq_index = user_val - irq_first;
|
|
if (irq_index >= num_irqs)
|
|
return -EINVAL;
|
|
|
|
/* Set irq count to 0 when unsubscribe */
|
|
irq_count[irq_index] = 0;
|
|
|
|
if (dev_attr[irq_index])
|
|
sysfs_remove_file(&dev->kobj, &dev_attr[irq_index]->attr);
|
|
|
|
|
|
free_irq(user_val, &dev->kobj);
|
|
kfree(event_name[irq_index]);
|
|
kfree(dev_attr[irq_index]);
|
|
|
|
return count;
|
|
}
|
|
|
|
/*
|
|
* - several debugfs nodes fops
|
|
*/
|
|
|
|
static const struct file_operations ab8500_bank_fops = {
|
|
.open = ab8500_bank_open,
|
|
.write = ab8500_bank_write,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
.owner = THIS_MODULE,
|
|
};
|
|
|
|
static const struct file_operations ab8500_address_fops = {
|
|
.open = ab8500_address_open,
|
|
.write = ab8500_address_write,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
.owner = THIS_MODULE,
|
|
};
|
|
|
|
static const struct file_operations ab8500_val_fops = {
|
|
.open = ab8500_val_open,
|
|
.write = ab8500_val_write,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
.owner = THIS_MODULE,
|
|
};
|
|
|
|
static const struct file_operations ab8500_subscribe_fops = {
|
|
.open = ab8500_subscribe_unsubscribe_open,
|
|
.write = ab8500_subscribe_write,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
.owner = THIS_MODULE,
|
|
};
|
|
|
|
static const struct file_operations ab8500_unsubscribe_fops = {
|
|
.open = ab8500_subscribe_unsubscribe_open,
|
|
.write = ab8500_unsubscribe_write,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
.owner = THIS_MODULE,
|
|
};
|
|
|
|
static const struct file_operations ab8500_hwreg_fops = {
|
|
.open = ab8500_hwreg_open,
|
|
.write = ab8500_hwreg_write,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
.owner = THIS_MODULE,
|
|
};
|
|
|
|
static int ab8500_debug_probe(struct platform_device *plf)
|
|
{
|
|
struct dentry *ab8500_dir;
|
|
struct ab8500 *ab8500;
|
|
struct resource *res;
|
|
|
|
debug_bank = AB8500_MISC;
|
|
debug_address = AB8500_REV_REG & 0x00FF;
|
|
|
|
ab8500 = dev_get_drvdata(plf->dev.parent);
|
|
num_irqs = ab8500->mask_size;
|
|
|
|
irq_count = devm_kcalloc(&plf->dev,
|
|
num_irqs, sizeof(*irq_count), GFP_KERNEL);
|
|
if (!irq_count)
|
|
return -ENOMEM;
|
|
|
|
dev_attr = devm_kcalloc(&plf->dev,
|
|
num_irqs, sizeof(*dev_attr), GFP_KERNEL);
|
|
if (!dev_attr)
|
|
return -ENOMEM;
|
|
|
|
event_name = devm_kcalloc(&plf->dev,
|
|
num_irqs, sizeof(*event_name), GFP_KERNEL);
|
|
if (!event_name)
|
|
return -ENOMEM;
|
|
|
|
res = platform_get_resource_byname(plf, 0, "IRQ_AB8500");
|
|
if (!res) {
|
|
dev_err(&plf->dev, "AB8500 irq not found, err %d\n", irq_first);
|
|
return -ENXIO;
|
|
}
|
|
irq_ab8500 = res->start;
|
|
|
|
irq_first = platform_get_irq_byname(plf, "IRQ_FIRST");
|
|
if (irq_first < 0)
|
|
return irq_first;
|
|
|
|
irq_last = platform_get_irq_byname(plf, "IRQ_LAST");
|
|
if (irq_last < 0)
|
|
return irq_last;
|
|
|
|
ab8500_dir = debugfs_create_dir(AB8500_NAME_STRING, NULL);
|
|
|
|
debugfs_create_file("all-bank-registers", S_IRUGO, ab8500_dir,
|
|
&plf->dev, &ab8500_bank_registers_fops);
|
|
debugfs_create_file("all-banks", S_IRUGO, ab8500_dir,
|
|
&plf->dev, &ab8500_all_banks_fops);
|
|
debugfs_create_file("register-bank", (S_IRUGO | S_IWUSR | S_IWGRP),
|
|
ab8500_dir, &plf->dev, &ab8500_bank_fops);
|
|
debugfs_create_file("register-address", (S_IRUGO | S_IWUSR | S_IWGRP),
|
|
ab8500_dir, &plf->dev, &ab8500_address_fops);
|
|
debugfs_create_file("register-value", (S_IRUGO | S_IWUSR | S_IWGRP),
|
|
ab8500_dir, &plf->dev, &ab8500_val_fops);
|
|
debugfs_create_file("irq-subscribe", (S_IRUGO | S_IWUSR | S_IWGRP),
|
|
ab8500_dir, &plf->dev, &ab8500_subscribe_fops);
|
|
|
|
if (is_ab8500(ab8500)) {
|
|
debug_ranges = ab8500_debug_ranges;
|
|
num_interrupt_lines = AB8500_NR_IRQS;
|
|
} else if (is_ab8505(ab8500)) {
|
|
debug_ranges = ab8505_debug_ranges;
|
|
num_interrupt_lines = AB8505_NR_IRQS;
|
|
} else if (is_ab9540(ab8500)) {
|
|
debug_ranges = ab8505_debug_ranges;
|
|
num_interrupt_lines = AB9540_NR_IRQS;
|
|
} else if (is_ab8540(ab8500)) {
|
|
debug_ranges = ab8540_debug_ranges;
|
|
num_interrupt_lines = AB8540_NR_IRQS;
|
|
}
|
|
|
|
debugfs_create_file("interrupts", (S_IRUGO), ab8500_dir, &plf->dev,
|
|
&ab8500_interrupts_fops);
|
|
debugfs_create_file("irq-unsubscribe", (S_IRUGO | S_IWUSR | S_IWGRP),
|
|
ab8500_dir, &plf->dev, &ab8500_unsubscribe_fops);
|
|
debugfs_create_file("hwreg", (S_IRUGO | S_IWUSR | S_IWGRP), ab8500_dir,
|
|
&plf->dev, &ab8500_hwreg_fops);
|
|
debugfs_create_file("all-modem-registers", (S_IRUGO | S_IWUSR | S_IWGRP),
|
|
ab8500_dir, &plf->dev, &ab8500_modem_fops);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver ab8500_debug_driver = {
|
|
.driver = {
|
|
.name = "ab8500-debug",
|
|
.suppress_bind_attrs = true,
|
|
},
|
|
.probe = ab8500_debug_probe,
|
|
};
|
|
|
|
static int __init ab8500_debug_init(void)
|
|
{
|
|
return platform_driver_register(&ab8500_debug_driver);
|
|
}
|
|
subsys_initcall(ab8500_debug_init);
|