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/*
* Copyright (c) 2008, Google Inc.
* All rights reserved.
*
* Copyright (c) 2009-2011, Code Aurora Forum. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google, Inc. nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef __DEV_GPIO_KEYPAD_H
#define __DEV_GPIO_KEYPAD_H
#include <sys/types.h>
/* unset: drive active output low, set: drive active output high */
#define GPIOKPF_ACTIVE_HIGH (1U << 0)
#define GPIOKPF_DRIVE_INACTIVE (1U << 1)
struct gpio_keypad_info {
/* size must be ninputs * noutputs */
const uint16_t *keymap;
unsigned *input_gpios;
unsigned *output_gpios;
int ninputs;
int noutputs;
/* time to wait before reading inputs after driving each output */
time_t settle_time;
time_t poll_time;
unsigned flags;
};
void gpio_keypad_init(struct gpio_keypad_info *kpinfo);
//Macros for SSBI Qwerty keypad for 7x30
/* SSBI 2.0 controller registers */
#define MSM_SSBI_BASE 0xAD900000
#define SSBI_TIMEOUT_US 100
#define SSBI2_CTL 0x0000
#define SSBI2_RESET 0x0004
#define SSBI2_CMD 0x0008
#define SSBI2_RD 0x0010
#define SSBI2_STATUS 0x0014
#define SSBI2_PRIORITIES 0x0018
#define SSBI2_MODE2 0x001C
/* SSBI_CMD fields */
#define SSBI_CMD_SEND_TERM_SYM (0x01 << 27)
#define SSBI_CMD_WAKEUP_SLAVE (0x01 << 26)
#define SSBI_CMD_USE_ENABLE (0x01 << 25)
#define SSBI_CMD_RDWRN (0x01 << 24)
#define SSBI_CMD_REG_ADDR_SHFT (0x10)
#define SSBI_CMD_REG_ADDR_MASK (0xFF << SSBI_CMD_REG_ADDR_SHFT)
#define SSBI_CMD_REG_DATA_SHFT (0x00)
#define SSBI_CMD_REG_DATA_MASK (0xFF << SSBI_CMD_REG_DATA_SHFT)
/* SSBI_STATUS fields */
#define SSBI_STATUS_DATA_IN 0x10
#define SSBI_STATUS_RD_CLOBBERED 0x08
#define SSBI_STATUS_RD_READY 0x04
#define SSBI_STATUS_READY 0x02
#define SSBI_STATUS_MCHN_BUSY 0x01
/* SSBI_RD fields */
#define SSBI_RD_USE_ENABLE 0x02000000
#define SSBI_RD_RDWRN 0x01000000
#define SSBI_RD_REG_ADDR_SHFT 0x10
#define SSBI_RD_REG_ADDR_MASK (0xFF << SSBI_RD_REG_ADDR_SHFT)
#define SSBI_RD_REG_DATA_SHFT (0x00)
#define SSBI_RD_REG_DATA_MASK (0xFF << SSBI_RD_REG_DATA_SHFT)
/* SSBI_MODE2 fields */
#define SSBI_MODE2_REG_ADDR_15_8_SHFT 0x04
#define SSBI_MODE2_REG_ADDR_15_8_MASK (0x7F << SSBI_MODE2_REG_ADDR_15_8_SHFT)
#define SSBI_MODE2_ADDR_WIDTH_SHFT 0x01
#define SSBI_MODE2_ADDR_WIDTH_MASK (0x07 << SSBI_MODE2_ADDR_WIDTH_SHFT)
#define SSBI_MODE2_SSBI2_MODE 0x00000001
//Keypad controller configurations
#define SSBI_REG_KYPD_CNTL_ADDR 0x148
#define SSBI_REG_KYPD_SCAN_ADDR 0x149
#define SSBI_REG_KYPD_TEST_ADDR 0x14A
#define SSBI_REG_KYPD_REC_DATA_ADDR 0x14B
#define SSBI_REG_KYPD_OLD_DATA_ADDR 0x14C
// GPIO configurations
#define SSBI_REG_ADDR_GPIO_BASE 0x150
#define QT_PMIC_GPIO_KYPD_SNS 0x008
#define QT_PMIC_GPIO_KYPD_DRV 0x003
#define SSBI_OFFSET_ADDR_GPIO_KYPD_SNS 0x000
#define SSBI_OFFSET_ADDR_GPIO_KYPD_DRV 0x008
#define SSBI_REG_ADDR_GPIO(n) (SSBI_REG_ADDR_GPIO_BASE + n)
#define PM_GPIO_DIR_OUT 0x01
#define PM_GPIO_DIR_IN 0x02
#define PM_GPIO_DIR_BOTH (PM_GPIO_DIR_OUT | PM_GPIO_DIR_IN)
#define PM_GPIO_PULL_UP1 2
#define PM_GPIO_PULL_UP2 3
#define PM_GPIO_PULL_DN 4
#define PM_GPIO_PULL_NO 5
#define PM_GPIO_STRENGTH_NO 0
#define PM_GPIO_STRENGTH_HIGH 1
#define PM_GPIO_STRENGTH_MED 2
#define PM_GPIO_STRENGTH_LOW 3
#define PM_GPIO_FUNC_NORMAL 0
#define PM_GPIO_FUNC_PAIRED 1
#define PM_GPIO_FUNC_1 2
#define PM_GPIO_FUNC_2 3
#define PM8058_GPIO_BANK_MASK 0x70
#define PM8058_GPIO_BANK_SHIFT 4
#define PM8058_GPIO_WRITE 0x80
/* Bank 0 */
#define PM8058_GPIO_VIN_MASK 0x0E
#define PM8058_GPIO_VIN_SHIFT 1
#define PM8058_GPIO_MODE_ENABLE 0x01
/* Bank 1 */
#define PM8058_GPIO_MODE_MASK 0x0C
#define PM8058_GPIO_MODE_SHIFT 2
#define PM8058_GPIO_OUT_BUFFER 0x02
#define PM8058_GPIO_OUT_INVERT 0x01
#define PM8058_GPIO_MODE_OFF 3
#define PM8058_GPIO_MODE_OUTPUT 2
#define PM8058_GPIO_MODE_INPUT 0
#define PM8058_GPIO_MODE_BOTH 1
/* Bank 2 */
#define PM8058_GPIO_PULL_MASK 0x0E
#define PM8058_GPIO_PULL_SHIFT 1
/* Bank 3 */
#define PM8058_GPIO_OUT_STRENGTH_MASK 0x0C
#define PM8058_GPIO_OUT_STRENGTH_SHIFT 2
/* Bank 4 */
#define PM8058_GPIO_FUNC_MASK 0x0E
#define PM8058_GPIO_FUNC_SHIFT 1
/* PMIC Arbiter 1: SSBI2 Configuration Micro ARM registers */
#define PA1_SSBI2_CMD 0x00500000
#define PA1_SSBI2_RD_STATUS 0x00500004
#define PA1_SSBI2_REG_ADDR_SHIFT 8
#define PA1_SSBI2_CMD_RDWRN_SHIFT 24
#define PA1_SSBI2_TRANS_DONE_SHIFT 27
#define PA1_SSBI2_REG_DATA_MASK 0xFF
#define PA1_SSBI2_REG_DATA_SHIFT 0
#define PA1_SSBI2_CMD_READ 1
#define PA1_SSBI2_CMD_WRITE 0
/* PMIC Arbiter 2: SSBI2 Configuration Micro ARM registers */
#define PA2_SSBI2_CMD 0x00C00000
#define PA2_SSBI2_RD_STATUS 0x00C00004
#define PA2_SSBI2_REG_ADDR_SHIFT 8
#define PA2_SSBI2_CMD_RDWRN_SHIFT 24
#define PA2_SSBI2_TRANS_DONE_SHIFT 27
#define PA2_SSBI2_REG_DATA_MASK 0xFF
#define PA2_SSBI2_REG_DATA_SHIFT 0
#define PA2_SSBI2_CMD_READ 1
#define PA2_SSBI2_CMD_WRITE 0
struct pm8058_gpio {
int direction;
int pull;
int vin_sel; /* 0..7 */
int out_strength;
int function;
int inv_int_pol; /* invert interrupt polarity */
};
bool pm8058_gpio_get(unsigned int gpio);
typedef int (*read_func)(unsigned char *, unsigned short, unsigned short);
typedef int (*write_func)(unsigned char *, unsigned short, unsigned short);
struct qwerty_keypad_info {
/* size must be ninputs * noutputs */
unsigned int *keymap;
unsigned char *old_keys;
unsigned char *rec_keys;
unsigned int rows;
unsigned int columns;
unsigned int num_of_reads;
read_func rd_func;
write_func wr_func;
/* time to wait before reading inputs after driving each output */
time_t settle_time;
time_t poll_time;
unsigned flags;
};
#define SSBI_CMD_READ(AD) \
(SSBI_CMD_RDWRN | (((AD) & 0xFF) << SSBI_CMD_REG_ADDR_SHFT))
#define SSBI_CMD_WRITE(AD, DT) \
((((AD) & 0xFF) << SSBI_CMD_REG_ADDR_SHFT) | \
(((DT) & 0xFF) << SSBI_CMD_REG_DATA_SHFT))
#define SSBI_MODE2_REG_ADDR_15_8(MD, AD) \
(((MD) & 0x0F) | ((((AD) >> 8) << SSBI_MODE2_REG_ADDR_15_8_SHFT) & \
SSBI_MODE2_REG_ADDR_15_8_MASK))
void ssbi_keypad_init (struct qwerty_keypad_info *);
int i2c_ssbi_read_bytes(unsigned char *buffer, unsigned short length,
unsigned short slave_addr);
int i2c_ssbi_write_bytes(unsigned char *buffer, unsigned short length,
unsigned short slave_addr);
int pa1_ssbi2_read_bytes(unsigned char *buffer, unsigned short length,
unsigned short slave_addr);
int pa1_ssbi2_write_bytes(unsigned char *buffer, unsigned short length,
unsigned short slave_addr);
#endif /* __DEV_GPIO_KEYPAD_H */