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Diffstat (limited to 'include/linux/mfd/da9052/da9052.h')
| -rw-r--r-- | include/linux/mfd/da9052/da9052.h | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/include/linux/mfd/da9052/da9052.h b/include/linux/mfd/da9052/da9052.h new file mode 100644 index 00000000000..88d34cacbb9 --- /dev/null +++ b/include/linux/mfd/da9052/da9052.h @@ -0,0 +1,209 @@ +/* + * da9052 declarations. + * + * Copyright(c) 2009 Dialog Semiconductor Ltd. + * + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef __LINUX_MFD_DA9052_DA9052_H +#define __LINUX_MFD_DA9052_DA9052_H + +#include <linux/slab.h> +#include <linux/mfd/core.h> + +#include <linux/mfd/da9052/eh.h> +#include <linux/mfd/da9052/reg.h> +#include <linux/mfd/da9052/led.h> + + +#define SPI 1 +#define I2C 2 + +#define DA9052_SSC_DEVICE_NAME "da9052_ssc" +#define DA9052_EH_DEVICE_NAME "da9052_eh" + +#define DA9052_IRQ S3C_EINT(9) + +/* Module specific error codes */ +#define INVALID_REGISTER 2 +#define INVALID_READ 3 +#define INVALID_PAGE 4 + +/* Defines for Volatile and Non Volatile register types */ +#define VOLATILE 0 +#define NON_VOLATILE 1 + +/* Defines for cache state */ +#define VALID 0 +#define INVALID 1 + +/* Total number of registers in DA9057 */ +#define DA9052_REG_CNT DA9052_PAGE1_REG_END + +/* Maximum number of registers that can be read/written by a singe request */ +#define MAX_READ_WRITE_CNT 16 + + +#define DA9052_SSC_SPI_DEVICE_NAME "da9052_ssc_spi" +#define PAGE_0_START 1 +#define PAGE_0_END 127 +#define PAGE_1_START 128 +#define PAGE_1_END 255 +#define ACTIVE_PAGE_0 0 +#define ACTIVE_PAGE_1 1 +#define PAGECON_0 0 +#define PAGECON_128 128 +#define RW_POL 1 + +#define DA9052_SSC_I2C_DEVICE_NAME "da9052_ssc_i2c" +#define DA9052_I2C_ADDR 0x90 +#define DA9052_SSC_I2C_PAGE_WRITE_MODE 0 +#define DA9052_SSC_I2C_REPEAT_WRITE_MODE 1 +#define DA9052_SSC_I2C_WRITE_MODE DA9052_SSC_I2C_REPEAT_WRITE_MODE + +struct da9052_ssc_msg { + unsigned char data; + unsigned char addr; +}; + +struct ssc_cache_entry { + unsigned char val; + unsigned char type:4; + unsigned char status:4; +}; + +struct da9052_eh_nb { + struct list_head nb_list; + unsigned char eve_type; + void (*call_back)(struct da9052_eh_nb *, unsigned int); +}; + +struct da9052_regulator_init_data { + struct regulator_init_data *init_data; + int id; + +}; + +struct da9052_regulator_platform_data { + struct regulator_init_data *regulators; +}; + +struct da9052_tsi_platform_data { + u32 pen_up_interval; + u16 tsi_delay_bit_shift; + u16 tsi_skip_bit_shift; + u16 num_gpio_tsi_register; + u16 tsi_supply_voltage; + u16 tsi_ref_source; + u16 max_tsi_delay; + u16 max_tsi_skip_slot; +}; + + +struct da9052 { + struct mutex ssc_lock; + struct mutex eve_nb_lock; + struct mutex manconv_lock; + struct work_struct eh_isr_work; + struct ssc_cache_entry ssc_cache[DA9052_REG_CNT]; + int (*read) (struct da9052 *da9052, struct da9052_ssc_msg *sscmsg); + int (*write) (struct da9052 *da9052, struct da9052_ssc_msg *sscmsg); + int (*read_many) (struct da9052 *da9052, + struct da9052_ssc_msg *sscmsg, int cnt); + int (*write_many)(struct da9052 *da9052, + struct da9052_ssc_msg *sscmsg, int cnt); + int (*register_event_notifier)(struct da9052 *da9052, + struct da9052_eh_nb *nb); + int (*unregister_event_notifier)(struct da9052 *da9052, + struct da9052_eh_nb *nb); + int num_regulators; + int connecting_device; + int irq; + struct spi_device *spi_dev; + unsigned int spi_active_page; + unsigned char rw_pol; + unsigned char *spi_rx_buf; + unsigned char *spi_tx_buf; + + struct i2c_client *i2c_client; + struct device *dev; + struct i2c_adapter *adapter; + unsigned char slave_addr; +}; + + +struct da9052_platform_data { + int (*init)(struct da9052 *da9052); + int irq_high; + int irq_base; + int gpio_base; + int num_regulators; + struct da9052 *da9052; + struct regulator_init_data *regulators; + struct da9052_leds_platform_data *led_data; + struct da9052_tsi_platform_data *tsi_data; +}; + +struct da9052_ssc_ops { + int (*write)(struct da9052 *da9052, struct da9052_ssc_msg *msg); + int (*read)(struct da9052 *da9052, struct da9052_ssc_msg *msg); + int (*write_many)(struct da9052 *da9052, + struct da9052_ssc_msg *sscmsg, int msg_no); + int (*read_many)(struct da9052 *da9052, + struct da9052_ssc_msg *sscmsg, int msg_no); + int (*device_register)(struct da9052 *da9052); + void (*device_unregister)(void); +}; + +int da9052_ssc_write(struct da9052 *da9052, + struct da9052_ssc_msg *sscmsg); +int da9052_ssc_read(struct da9052 *da9052, + struct da9052_ssc_msg *sscmsg); +int da9052_ssc_write_many(struct da9052 *da9052, + struct da9052_ssc_msg *sscmsg, int cnt); +int da9052_ssc_read_many(struct da9052 *da9052, + struct da9052_ssc_msg *sscmsg, int cnt); + +int da9052_spi_write(struct da9052 *da9052, + struct da9052_ssc_msg *msg); +int da9052_spi_read(struct da9052 *da9052, + struct da9052_ssc_msg *msg); + +int da9052_spi_write_many(struct da9052 *da9052, struct da9052_ssc_msg *sscmsg, + int msg_no); +int da9052_spi_read_many(struct da9052 *da9052, + struct da9052_ssc_msg *sscmsg, + int msg_no); + +void da9052_ssc_exit(struct da9052 *da9052); +int da9052_ssc_init(struct da9052 *da9052); + +/* I2C specific Functions */ +int da9052_i2c_write(struct da9052 *da9052, struct da9052_ssc_msg *msg); +int da9052_i2c_read(struct da9052 *da9052, struct da9052_ssc_msg *msg); +int da9052_i2c_write_many(struct da9052 *da9052, + struct da9052_ssc_msg *sscmsg, int msg_no); +int da9052_i2c_read_many(struct da9052 *da9052, + struct da9052_ssc_msg *sscmsg, int msg_no); + +void da9052_lock(struct da9052 *da9052); +void da9052_unlock(struct da9052 *da9052); +int eh_register_nb(struct da9052 *da9052, struct da9052_eh_nb *nb); +int eh_unregister_nb(struct da9052 *da9052, struct da9052_eh_nb *nb); +int da9052_manual_read(struct da9052 *da9052, + unsigned char channel); +#endif /* __LINUX_MFD_DA9052_DA9052_H */ |