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2096 lines
39 KiB
2096 lines
39 KiB
// 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 <[email protected]> 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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|
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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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|
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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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}, |
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}, |
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[AB8500_USB] = { |
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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 = 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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.first = 0x91, |
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.last = 0x94, |
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}, |
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}, |
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}, |
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[AB8500_TVOUT] = { |
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.num_ranges = 0, |
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.range = NULL, |
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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 = 0x02, |
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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 = 0x44, |
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}, |
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{ |
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.first = 0x50, |
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.last = 0x57, |
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}, |
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{ |
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.first = 0x60, |
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.last = 0x60, |
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}, |
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{ |
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.first = 0xA0, |
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.last = 0xA7, |
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}, |
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{ |
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.first = 0xAF, |
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.last = 0xB2, |
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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 = 0xF5, |
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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[]) { |
|
{ |
|
.first = 0x00, |
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.last = 0x00, |
|
}, |
|
{ |
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.first = 0x07, |
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.last = 0x0A, |
|
}, |
|
{ |
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.first = 0x10, |
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.last = 0x14, |
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}, |
|
}, |
|
}, |
|
[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);
|
|
|