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Diffstat (limited to 'include/linux/mfd/abx500.h')
| -rw-r--r-- | include/linux/mfd/abx500.h | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/include/linux/mfd/abx500.h b/include/linux/mfd/abx500.h new file mode 100644 index 000000000000..390726fcbcb1 --- /dev/null +++ b/include/linux/mfd/abx500.h @@ -0,0 +1,233 @@ +/* + * Copyright (C) 2007-2009 ST-Ericsson AB + * License terms: GNU General Public License (GPL) version 2 + * AB3100 core access functions + * Author: Linus Walleij <linus.walleij@stericsson.com> + * + * ABX500 core access functions. + * The abx500 interface is used for the Analog Baseband chip + * ab3100, ab3550, ab5500 and possibly comming. It is not used for + * ab4500 and ab8500 since they are another family of chip. + * + * Author: Mattias Wallin <mattias.wallin@stericsson.com> + * Author: Mattias Nilsson <mattias.i.nilsson@stericsson.com> + * Author: Bengt Jonsson <bengt.g.jonsson@stericsson.com> + * Author: Rickard Andersson <rickard.andersson@stericsson.com> + */ + +#include <linux/device.h> +#include <linux/regulator/machine.h> + +#ifndef MFD_ABX500_H +#define MFD_ABX500_H + +#define AB3100_P1A 0xc0 +#define AB3100_P1B 0xc1 +#define AB3100_P1C 0xc2 +#define AB3100_P1D 0xc3 +#define AB3100_P1E 0xc4 +#define AB3100_P1F 0xc5 +#define AB3100_P1G 0xc6 +#define AB3100_R2A 0xc7 +#define AB3100_R2B 0xc8 +#define AB3550_P1A 0x10 +#define AB5500_1_0 0x20 +#define AB5500_2_0 0x21 +#define AB5500_2_1 0x22 + +/* + * AB3100, EVENTA1, A2 and A3 event register flags + * these are catenated into a single 32-bit flag in the code + * for event notification broadcasts. + */ +#define AB3100_EVENTA1_ONSWA (0x01<<16) +#define AB3100_EVENTA1_ONSWB (0x02<<16) +#define AB3100_EVENTA1_ONSWC (0x04<<16) +#define AB3100_EVENTA1_DCIO (0x08<<16) +#define AB3100_EVENTA1_OVER_TEMP (0x10<<16) +#define AB3100_EVENTA1_SIM_OFF (0x20<<16) +#define AB3100_EVENTA1_VBUS (0x40<<16) +#define AB3100_EVENTA1_VSET_USB (0x80<<16) + +#define AB3100_EVENTA2_READY_TX (0x01<<8) +#define AB3100_EVENTA2_READY_RX (0x02<<8) +#define AB3100_EVENTA2_OVERRUN_ERROR (0x04<<8) +#define AB3100_EVENTA2_FRAMING_ERROR (0x08<<8) +#define AB3100_EVENTA2_CHARG_OVERCURRENT (0x10<<8) +#define AB3100_EVENTA2_MIDR (0x20<<8) +#define AB3100_EVENTA2_BATTERY_REM (0x40<<8) +#define AB3100_EVENTA2_ALARM (0x80<<8) + +#define AB3100_EVENTA3_ADC_TRIG5 (0x01) +#define AB3100_EVENTA3_ADC_TRIG4 (0x02) +#define AB3100_EVENTA3_ADC_TRIG3 (0x04) +#define AB3100_EVENTA3_ADC_TRIG2 (0x08) +#define AB3100_EVENTA3_ADC_TRIGVBAT (0x10) +#define AB3100_EVENTA3_ADC_TRIGVTX (0x20) +#define AB3100_EVENTA3_ADC_TRIG1 (0x40) +#define AB3100_EVENTA3_ADC_TRIG0 (0x80) + +/* AB3100, STR register flags */ +#define AB3100_STR_ONSWA (0x01) +#define AB3100_STR_ONSWB (0x02) +#define AB3100_STR_ONSWC (0x04) +#define AB3100_STR_DCIO (0x08) +#define AB3100_STR_BOOT_MODE (0x10) +#define AB3100_STR_SIM_OFF (0x20) +#define AB3100_STR_BATT_REMOVAL (0x40) +#define AB3100_STR_VBUS (0x80) + +/* + * AB3100 contains 8 regulators, one external regulator controller + * and a buck converter, further the LDO E and buck converter can + * have separate settings if they are in sleep mode, this is + * modeled as a separate regulator. + */ +#define AB3100_NUM_REGULATORS 10 + +/** + * struct ab3100 + * @access_mutex: lock out concurrent accesses to the AB3100 registers + * @dev: pointer to the containing device + * @i2c_client: I2C client for this chip + * @testreg_client: secondary client for test registers + * @chip_name: name of this chip variant + * @chip_id: 8 bit chip ID for this chip variant + * @event_subscribers: event subscribers are listed here + * @startup_events: a copy of the first reading of the event registers + * @startup_events_read: whether the first events have been read + * + * This struct is PRIVATE and devices using it should NOT + * access ANY fields. It is used as a token for calling the + * AB3100 functions. + */ +struct ab3100 { + struct mutex access_mutex; + struct device *dev; + struct i2c_client *i2c_client; + struct i2c_client *testreg_client; + char chip_name[32]; + u8 chip_id; + struct blocking_notifier_head event_subscribers; + u8 startup_events[3]; + bool startup_events_read; +}; + +/** + * struct ab3100_platform_data + * Data supplied to initialize board connections to the AB3100 + * @reg_constraints: regulator constraints for target board + * the order of these constraints are: LDO A, C, D, E, + * F, G, H, K, EXT and BUCK. + * @reg_initvals: initial values for the regulator registers + * plus two sleep settings for LDO E and the BUCK converter. + * exactly AB3100_NUM_REGULATORS+2 values must be sent in. + * Order: LDO A, C, E, E sleep, F, G, H, K, EXT, BUCK, + * BUCK sleep, LDO D. (LDO D need to be initialized last.) + * @external_voltage: voltage level of the external regulator. + */ +struct ab3100_platform_data { + struct regulator_init_data reg_constraints[AB3100_NUM_REGULATORS]; + u8 reg_initvals[AB3100_NUM_REGULATORS+2]; + int external_voltage; +}; + +int ab3100_event_register(struct ab3100 *ab3100, + struct notifier_block *nb); +int ab3100_event_unregister(struct ab3100 *ab3100, + struct notifier_block *nb); + +/* AB3550, STR register flags */ +#define AB3550_STR_ONSWA (0x01) +#define AB3550_STR_ONSWB (0x02) +#define AB3550_STR_ONSWC (0x04) +#define AB3550_STR_DCIO (0x08) +#define AB3550_STR_BOOT_MODE (0x10) +#define AB3550_STR_SIM_OFF (0x20) +#define AB3550_STR_BATT_REMOVAL (0x40) +#define AB3550_STR_VBUS (0x80) + +/* Interrupt mask registers */ +#define AB3550_IMR1 0x29 +#define AB3550_IMR2 0x2a +#define AB3550_IMR3 0x2b +#define AB3550_IMR4 0x2c +#define AB3550_IMR5 0x2d + +enum ab3550_devid { + AB3550_DEVID_ADC, + AB3550_DEVID_DAC, + AB3550_DEVID_LEDS, + AB3550_DEVID_POWER, + AB3550_DEVID_REGULATORS, + AB3550_DEVID_SIM, + AB3550_DEVID_UART, + AB3550_DEVID_RTC, + AB3550_DEVID_CHARGER, + AB3550_DEVID_FUELGAUGE, + AB3550_DEVID_VIBRATOR, + AB3550_DEVID_CODEC, + AB3550_NUM_DEVICES, +}; + +/** + * struct abx500_init_setting + * Initial value of the registers for driver to use during setup. + */ +struct abx500_init_settings { + u8 bank; + u8 reg; + u8 setting; +}; + +/** + * struct ab3550_platform_data + * Data supplied to initialize board connections to the AB3550 + */ +struct ab3550_platform_data { + struct {unsigned int base; unsigned int count; } irq; + void *dev_data[AB3550_NUM_DEVICES]; + size_t dev_data_sz[AB3550_NUM_DEVICES]; + struct abx500_init_settings *init_settings; + unsigned int init_settings_sz; +}; + +int abx500_set_register_interruptible(struct device *dev, u8 bank, u8 reg, + u8 value); +int abx500_get_register_interruptible(struct device *dev, u8 bank, u8 reg, + u8 *value); +int abx500_get_register_page_interruptible(struct device *dev, u8 bank, + u8 first_reg, u8 *regvals, u8 numregs); +int abx500_set_register_page_interruptible(struct device *dev, u8 bank, + u8 first_reg, u8 *regvals, u8 numregs); +/** + * abx500_mask_and_set_register_inerruptible() - Modifies selected bits of a + * target register + * + * @dev: The AB sub device. + * @bank: The i2c bank number. + * @bitmask: The bit mask to use. + * @bitvalues: The new bit values. + * + * Updates the value of an AB register: + * value -> ((value & ~bitmask) | (bitvalues & bitmask)) + */ +int abx500_mask_and_set_register_interruptible(struct device *dev, u8 bank, + u8 reg, u8 bitmask, u8 bitvalues); +int abx500_get_chip_id(struct device *dev); +int abx500_event_registers_startup_state_get(struct device *dev, u8 *event); +int abx500_startup_irq_enabled(struct device *dev, unsigned int irq); + +struct abx500_ops { + int (*get_chip_id) (struct device *); + int (*get_register) (struct device *, u8, u8, u8 *); + int (*set_register) (struct device *, u8, u8, u8); + int (*get_register_page) (struct device *, u8, u8, u8 *, u8); + int (*set_register_page) (struct device *, u8, u8, u8 *, u8); + int (*mask_and_set_register) (struct device *, u8, u8, u8, u8); + int (*event_registers_startup_state_get) (struct device *, u8 *); + int (*startup_irq_enabled) (struct device *, unsigned int); +}; + +int abx500_register_ops(struct device *core_dev, struct abx500_ops *ops); +#endif |