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kernel-fxtec-pro1x/include/linux/i2c/twl4030.h
David Brownell a30d46c042 mfd: twl4030 IRQ handling update 
- Move it into a separate file; clean and streamline it
 - Restructure the init code for reuse during secondary dispatch
 - Support both levels (primary, secondary) of IRQ dispatch
 - Use a workqueue for irq mask/unmask and trigger configuration

Code for two subchips currently share that secondary handler code.
One is the power subchip; its IRQs are now handled by this core,
courtesy of this patch.  The other is the GPIO module, which will
be supported through a later patch.

There are also minor changes to the header file, mostly related
to GPIO support; nothing yet in mainline cares about those.  A
few references to OMAP-specific symbols are disabled; when they
can all be removed, the TWL4030 support ceases being OMAP-specific.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-10-22 01:19:37 +02:00

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/*
* twl4030.h - header for TWL4030 PM and audio CODEC device
*
* Copyright (C) 2005-2006 Texas Instruments, Inc.
*
* Based on tlv320aic23.c:
* Copyright (c) by Kai Svahn <kai.svahn@nokia.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef __TWL4030_H_
#define __TWL4030_H_
/*
* Using the twl4030 core we address registers using a pair
* { module id, relative register offset }
* which that core then maps to the relevant
* { i2c slave, absolute register address }
*
* The module IDs are meaningful only to the twl4030 core code,
* which uses them as array indices to look up the first register
* address each module uses within a given i2c slave.
*/
/* Slave 0 (i2c address 0x48) */
#define TWL4030_MODULE_USB 0x00
/* Slave 1 (i2c address 0x49) */
#define TWL4030_MODULE_AUDIO_VOICE 0x01
#define TWL4030_MODULE_GPIO 0x02
#define TWL4030_MODULE_INTBR 0x03
#define TWL4030_MODULE_PIH 0x04
#define TWL4030_MODULE_TEST 0x05
/* Slave 2 (i2c address 0x4a) */
#define TWL4030_MODULE_KEYPAD 0x06
#define TWL4030_MODULE_MADC 0x07
#define TWL4030_MODULE_INTERRUPTS 0x08
#define TWL4030_MODULE_LED 0x09
#define TWL4030_MODULE_MAIN_CHARGE 0x0A
#define TWL4030_MODULE_PRECHARGE 0x0B
#define TWL4030_MODULE_PWM0 0x0C
#define TWL4030_MODULE_PWM1 0x0D
#define TWL4030_MODULE_PWMA 0x0E
#define TWL4030_MODULE_PWMB 0x0F
/* Slave 3 (i2c address 0x4b) */
#define TWL4030_MODULE_BACKUP 0x10
#define TWL4030_MODULE_INT 0x11
#define TWL4030_MODULE_PM_MASTER 0x12
#define TWL4030_MODULE_PM_RECEIVER 0x13
#define TWL4030_MODULE_RTC 0x14
#define TWL4030_MODULE_SECURED_REG 0x15
/*
* Read and write single 8-bit registers
*/
int twl4030_i2c_write_u8(u8 mod_no, u8 val, u8 reg);
int twl4030_i2c_read_u8(u8 mod_no, u8 *val, u8 reg);
/*
* Read and write several 8-bit registers at once.
*
* IMPORTANT: For twl4030_i2c_write(), allocate num_bytes + 1
* for the value, and populate your data starting at offset 1.
*/
int twl4030_i2c_write(u8 mod_no, u8 *value, u8 reg, u8 num_bytes);
int twl4030_i2c_read(u8 mod_no, u8 *value, u8 reg, u8 num_bytes);
/*----------------------------------------------------------------------*/
/*
* NOTE: at up to 1024 registers, this is a big chip.
*
* Avoid putting register declarations in this file, instead of into
* a driver-private file, unless some of the registers in a block
* need to be shared with other drivers. One example is blocks that
* have Secondary IRQ Handler (SIH) registers.
*/
#define TWL4030_SIH_CTRL_EXCLEN_MASK BIT(0)
#define TWL4030_SIH_CTRL_PENDDIS_MASK BIT(1)
#define TWL4030_SIH_CTRL_COR_MASK BIT(2)
/*----------------------------------------------------------------------*/
/*
* GPIO Block Register offsets (use TWL4030_MODULE_GPIO)
*/
#define REG_GPIODATAIN1 0x0
#define REG_GPIODATAIN2 0x1
#define REG_GPIODATAIN3 0x2
#define REG_GPIODATADIR1 0x3
#define REG_GPIODATADIR2 0x4
#define REG_GPIODATADIR3 0x5
#define REG_GPIODATAOUT1 0x6
#define REG_GPIODATAOUT2 0x7
#define REG_GPIODATAOUT3 0x8
#define REG_CLEARGPIODATAOUT1 0x9
#define REG_CLEARGPIODATAOUT2 0xA
#define REG_CLEARGPIODATAOUT3 0xB
#define REG_SETGPIODATAOUT1 0xC
#define REG_SETGPIODATAOUT2 0xD
#define REG_SETGPIODATAOUT3 0xE
#define REG_GPIO_DEBEN1 0xF
#define REG_GPIO_DEBEN2 0x10
#define REG_GPIO_DEBEN3 0x11
#define REG_GPIO_CTRL 0x12
#define REG_GPIOPUPDCTR1 0x13
#define REG_GPIOPUPDCTR2 0x14
#define REG_GPIOPUPDCTR3 0x15
#define REG_GPIOPUPDCTR4 0x16
#define REG_GPIOPUPDCTR5 0x17
#define REG_GPIO_ISR1A 0x19
#define REG_GPIO_ISR2A 0x1A
#define REG_GPIO_ISR3A 0x1B
#define REG_GPIO_IMR1A 0x1C
#define REG_GPIO_IMR2A 0x1D
#define REG_GPIO_IMR3A 0x1E
#define REG_GPIO_ISR1B 0x1F
#define REG_GPIO_ISR2B 0x20
#define REG_GPIO_ISR3B 0x21
#define REG_GPIO_IMR1B 0x22
#define REG_GPIO_IMR2B 0x23
#define REG_GPIO_IMR3B 0x24
#define REG_GPIO_EDR1 0x28
#define REG_GPIO_EDR2 0x29
#define REG_GPIO_EDR3 0x2A
#define REG_GPIO_EDR4 0x2B
#define REG_GPIO_EDR5 0x2C
#define REG_GPIO_SIH_CTRL 0x2D
/* Up to 18 signals are available as GPIOs, when their
* pins are not assigned to another use (such as ULPI/USB).
*/
#define TWL4030_GPIO_MAX 18
/*----------------------------------------------------------------------*/
/*
* Keypad register offsets (use TWL4030_MODULE_KEYPAD)
* ... SIH/interrupt only
*/
#define TWL4030_KEYPAD_KEYP_ISR1 0x11
#define TWL4030_KEYPAD_KEYP_IMR1 0x12
#define TWL4030_KEYPAD_KEYP_ISR2 0x13
#define TWL4030_KEYPAD_KEYP_IMR2 0x14
#define TWL4030_KEYPAD_KEYP_SIR 0x15 /* test register */
#define TWL4030_KEYPAD_KEYP_EDR 0x16
#define TWL4030_KEYPAD_KEYP_SIH_CTRL 0x17
/*----------------------------------------------------------------------*/
/*
* Multichannel ADC register offsets (use TWL4030_MODULE_MADC)
* ... SIH/interrupt only
*/
#define TWL4030_MADC_ISR1 0x61
#define TWL4030_MADC_IMR1 0x62
#define TWL4030_MADC_ISR2 0x63
#define TWL4030_MADC_IMR2 0x64
#define TWL4030_MADC_SIR 0x65 /* test register */
#define TWL4030_MADC_EDR 0x66
#define TWL4030_MADC_SIH_CTRL 0x67
/*----------------------------------------------------------------------*/
/*
* Battery charger register offsets (use TWL4030_MODULE_INTERRUPTS)
*/
#define TWL4030_INTERRUPTS_BCIISR1A 0x0
#define TWL4030_INTERRUPTS_BCIISR2A 0x1
#define TWL4030_INTERRUPTS_BCIIMR1A 0x2
#define TWL4030_INTERRUPTS_BCIIMR2A 0x3
#define TWL4030_INTERRUPTS_BCIISR1B 0x4
#define TWL4030_INTERRUPTS_BCIISR2B 0x5
#define TWL4030_INTERRUPTS_BCIIMR1B 0x6
#define TWL4030_INTERRUPTS_BCIIMR2B 0x7
#define TWL4030_INTERRUPTS_BCISIR1 0x8 /* test register */
#define TWL4030_INTERRUPTS_BCISIR2 0x9 /* test register */
#define TWL4030_INTERRUPTS_BCIEDR1 0xa
#define TWL4030_INTERRUPTS_BCIEDR2 0xb
#define TWL4030_INTERRUPTS_BCIEDR3 0xc
#define TWL4030_INTERRUPTS_BCISIHCTRL 0xd
/*----------------------------------------------------------------------*/
/*
* Power Interrupt block register offsets (use TWL4030_MODULE_INT)
*/
#define TWL4030_INT_PWR_ISR1 0x0
#define TWL4030_INT_PWR_IMR1 0x1
#define TWL4030_INT_PWR_ISR2 0x2
#define TWL4030_INT_PWR_IMR2 0x3
#define TWL4030_INT_PWR_SIR 0x4 /* test register */
#define TWL4030_INT_PWR_EDR1 0x5
#define TWL4030_INT_PWR_EDR2 0x6
#define TWL4030_INT_PWR_SIH_CTRL 0x7
/*----------------------------------------------------------------------*/
struct twl4030_bci_platform_data {
int *battery_tmp_tbl;
unsigned int tblsize;
};
/* TWL4030_GPIO_MAX (18) GPIOs, with interrupts */
struct twl4030_gpio_platform_data {
int gpio_base;
unsigned irq_base, irq_end;
/* package the two LED signals as output-only GPIOs? */
bool use_leds;
/* gpio-n should control VMMC(n+1) if BIT(n) in mmc_cd is set */
u8 mmc_cd;
/* For gpio-N, bit (1 << N) in "pullups" is set if that pullup
* should be enabled. Else, if that bit is set in "pulldowns",
* that pulldown is enabled. Don't waste power by letting any
* digital inputs float...
*/
u32 pullups;
u32 pulldowns;
int (*setup)(struct device *dev,
unsigned gpio, unsigned ngpio);
int (*teardown)(struct device *dev,
unsigned gpio, unsigned ngpio);
};
struct twl4030_madc_platform_data {
int irq_line;
};
struct twl4030_keypad_data {
int rows;
int cols;
int *keymap;
int irq;
unsigned int keymapsize;
unsigned int rep:1;
};
enum twl4030_usb_mode {
T2_USB_MODE_ULPI = 1,
T2_USB_MODE_CEA2011_3PIN = 2,
};
struct twl4030_usb_data {
enum twl4030_usb_mode usb_mode;
};
struct twl4030_platform_data {
unsigned irq_base, irq_end;
struct twl4030_bci_platform_data *bci;
struct twl4030_gpio_platform_data *gpio;
struct twl4030_madc_platform_data *madc;
struct twl4030_keypad_data *keypad;
struct twl4030_usb_data *usb;
/* REVISIT more to come ... _nothing_ should be hard-wired */
};
/*----------------------------------------------------------------------*/
int twl4030_sih_setup(int module);
/*
* FIXME completely stop using TWL4030_IRQ_BASE ... instead, pass the
* IRQ data to subsidiary devices using platform device resources.
*/
/* IRQ information-need base */
#include <mach/irqs.h>
/* TWL4030 interrupts */
/* #define TWL4030_MODIRQ_GPIO (TWL4030_IRQ_BASE + 0) */
#define TWL4030_MODIRQ_KEYPAD (TWL4030_IRQ_BASE + 1)
#define TWL4030_MODIRQ_BCI (TWL4030_IRQ_BASE + 2)
#define TWL4030_MODIRQ_MADC (TWL4030_IRQ_BASE + 3)
/* #define TWL4030_MODIRQ_USB (TWL4030_IRQ_BASE + 4) */
/* #define TWL4030_MODIRQ_PWR (TWL4030_IRQ_BASE + 5) */
#define TWL4030_PWRIRQ_PWRBTN (TWL4030_PWR_IRQ_BASE + 0)
/* #define TWL4030_PWRIRQ_CHG_PRES (TWL4030_PWR_IRQ_BASE + 1) */
/* #define TWL4030_PWRIRQ_USB_PRES (TWL4030_PWR_IRQ_BASE + 2) */
/* #define TWL4030_PWRIRQ_RTC (TWL4030_PWR_IRQ_BASE + 3) */
/* #define TWL4030_PWRIRQ_HOT_DIE (TWL4030_PWR_IRQ_BASE + 4) */
/* #define TWL4030_PWRIRQ_PWROK_TIMEOUT (TWL4030_PWR_IRQ_BASE + 5) */
/* #define TWL4030_PWRIRQ_MBCHG (TWL4030_PWR_IRQ_BASE + 6) */
/* #define TWL4030_PWRIRQ_SC_DETECT (TWL4030_PWR_IRQ_BASE + 7) */
/* Rest are unsued currently*/
/* Offsets to Power Registers */
#define TWL4030_VDAC_DEV_GRP 0x3B
#define TWL4030_VDAC_DEDICATED 0x3E
#define TWL4030_VAUX1_DEV_GRP 0x17
#define TWL4030_VAUX1_DEDICATED 0x1A
#define TWL4030_VAUX2_DEV_GRP 0x1B
#define TWL4030_VAUX2_DEDICATED 0x1E
#define TWL4030_VAUX3_DEV_GRP 0x1F
#define TWL4030_VAUX3_DEDICATED 0x22
/* TWL4030 GPIO interrupt definitions */
#define TWL4030_GPIO_IRQ_NO(n) (TWL4030_GPIO_IRQ_BASE + (n))
/*
* Exported TWL4030 GPIO APIs
*
* WARNING -- use standard GPIO and IRQ calls instead; these will vanish.
*/
int twl4030_set_gpio_debounce(int gpio, int enable);
#if defined(CONFIG_TWL4030_BCI_BATTERY) || \
defined(CONFIG_TWL4030_BCI_BATTERY_MODULE)
extern int twl4030charger_usb_en(int enable);
#else
static inline int twl4030charger_usb_en(int enable) { return 0; }
#endif
#endif /* End of __TWL4030_H */
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