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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* linux/include/mfd/ucb1x00.h
*
* Copyright (C) 2001 Russell King, All Rights Reserved.
*/
#ifndef UCB1200_H
#define UCB1200_H
#include <linux/device.h>
#include <linux/mfd/mcp.h>
#include <linux/gpio.h>
#include <linux/gpio/driver.h>
#include <linux/mutex.h>
#define UCB_IO_DATA 0x00
#define UCB_IO_DIR 0x01
#define UCB_IO_0 (1 << 0)
#define UCB_IO_1 (1 << 1)
#define UCB_IO_2 (1 << 2)
#define UCB_IO_3 (1 << 3)
#define UCB_IO_4 (1 << 4)
#define UCB_IO_5 (1 << 5)
#define UCB_IO_6 (1 << 6)
#define UCB_IO_7 (1 << 7)
#define UCB_IO_8 (1 << 8)
#define UCB_IO_9 (1 << 9)
#define UCB_IE_RIS 0x02
#define UCB_IE_FAL 0x03
#define UCB_IE_STATUS 0x04
#define UCB_IE_CLEAR 0x04
#define UCB_IE_ADC (1 << 11)
#define UCB_IE_TSPX (1 << 12)
#define UCB_IE_TSMX (1 << 13)
#define UCB_IE_TCLIP (1 << 14)
#define UCB_IE_ACLIP (1 << 15)
#define UCB_IRQ_TSPX 12
#define UCB_TC_A 0x05
#define UCB_TC_A_LOOP (1 << 7) /* UCB1200 */
#define UCB_TC_A_AMPL (1 << 7) /* UCB1300 */
#define UCB_TC_B 0x06
#define UCB_TC_B_VOICE_ENA (1 << 3)
#define UCB_TC_B_CLIP (1 << 4)
#define UCB_TC_B_ATT (1 << 6)
#define UCB_TC_B_SIDE_ENA (1 << 11)
#define UCB_TC_B_MUTE (1 << 13)
#define UCB_TC_B_IN_ENA (1 << 14)
#define UCB_TC_B_OUT_ENA (1 << 15)
#define UCB_AC_A 0x07
#define UCB_AC_B 0x08
#define UCB_AC_B_LOOP (1 << 8)
#define UCB_AC_B_MUTE (1 << 13)
#define UCB_AC_B_IN_ENA (1 << 14)
#define UCB_AC_B_OUT_ENA (1 << 15)
#define UCB_TS_CR 0x09
#define UCB_TS_CR_TSMX_POW (1 << 0)
#define UCB_TS_CR_TSPX_POW (1 << 1)
#define UCB_TS_CR_TSMY_POW (1 << 2)
#define UCB_TS_CR_TSPY_POW (1 << 3)
#define UCB_TS_CR_TSMX_GND (1 << 4)
#define UCB_TS_CR_TSPX_GND (1 << 5)
#define UCB_TS_CR_TSMY_GND (1 << 6)
#define UCB_TS_CR_TSPY_GND (1 << 7)
#define UCB_TS_CR_MODE_INT (0 << 8)
#define UCB_TS_CR_MODE_PRES (1 << 8)
#define UCB_TS_CR_MODE_POS (2 << 8)
#define UCB_TS_CR_BIAS_ENA (1 << 11)
#define UCB_TS_CR_TSPX_LOW (1 << 12)
#define UCB_TS_CR_TSMX_LOW (1 << 13)
#define UCB_ADC_CR 0x0a
#define UCB_ADC_SYNC_ENA (1 << 0)
#define UCB_ADC_VREFBYP_CON (1 << 1)
#define UCB_ADC_INP_TSPX (0 << 2)
#define UCB_ADC_INP_TSMX (1 << 2)
#define UCB_ADC_INP_TSPY (2 << 2)
#define UCB_ADC_INP_TSMY (3 << 2)
#define UCB_ADC_INP_AD0 (4 << 2)
#define UCB_ADC_INP_AD1 (5 << 2)
#define UCB_ADC_INP_AD2 (6 << 2)
#define UCB_ADC_INP_AD3 (7 << 2)
#define UCB_ADC_EXT_REF (1 << 5)
#define UCB_ADC_START (1 << 7)
#define UCB_ADC_ENA (1 << 15)
#define UCB_ADC_DATA 0x0b
#define UCB_ADC_DAT_VAL (1 << 15)
#define UCB_ADC_DAT(x) (((x) & 0x7fe0) >> 5)
#define UCB_ID 0x0c
#define UCB_ID_1200 0x1004
#define UCB_ID_1300 0x1005
#define UCB_ID_TC35143 0x9712
#define UCB_MODE 0x0d
#define UCB_MODE_DYN_VFLAG_ENA (1 << 12)
#define UCB_MODE_AUD_OFF_CAN (1 << 13)
enum ucb1x00_reset {
UCB_RST_PROBE,
UCB_RST_RESUME,
UCB_RST_SUSPEND,
UCB_RST_REMOVE,
UCB_RST_PROBE_FAIL,
};
struct ucb1x00_plat_data {
void (*reset)(enum ucb1x00_reset);
unsigned irq_base;
int gpio_base;
unsigned can_wakeup;
};
struct ucb1x00 {
raw_spinlock_t irq_lock;
struct mcp *mcp;
unsigned int irq;
int irq_base;
struct mutex adc_mutex;
spinlock_t io_lock;
u16 id;
u16 io_dir;
u16 io_out;
u16 adc_cr;
u16 irq_fal_enbl;
u16 irq_ris_enbl;
u16 irq_mask;
u16 irq_wake;
struct device dev;
struct list_head node;
struct list_head devs;
struct gpio_chip gpio;
};
struct ucb1x00_driver;
struct ucb1x00_dev {
struct list_head dev_node;
struct list_head drv_node;
struct ucb1x00 *ucb;
struct ucb1x00_driver *drv;
void *priv;
};
struct ucb1x00_driver {
struct list_head node;
struct list_head devs;
int (*add)(struct ucb1x00_dev *dev);
void (*remove)(struct ucb1x00_dev *dev);
int (*suspend)(struct ucb1x00_dev *dev);
int (*resume)(struct ucb1x00_dev *dev);
};
#define classdev_to_ucb1x00(cd) container_of(cd, struct ucb1x00, dev)
int ucb1x00_register_driver(struct ucb1x00_driver *);
void ucb1x00_unregister_driver(struct ucb1x00_driver *);
/**
* ucb1x00_clkrate - return the UCB1x00 SIB clock rate
* @ucb: UCB1x00 structure describing chip
*
* Return the SIB clock rate in Hz.
*/
static inline unsigned int ucb1x00_clkrate(struct ucb1x00 *ucb)
{
return mcp_get_sclk_rate(ucb->mcp);
}
/**
* ucb1x00_enable - enable the UCB1x00 SIB clock
* @ucb: UCB1x00 structure describing chip
*
* Enable the SIB clock. This can be called multiple times.
*/
static inline void ucb1x00_enable(struct ucb1x00 *ucb)
{
mcp_enable(ucb->mcp);
}
/**
* ucb1x00_disable - disable the UCB1x00 SIB clock
* @ucb: UCB1x00 structure describing chip
*
* Disable the SIB clock. The SIB clock will only be disabled
* when the number of ucb1x00_enable calls match the number of
* ucb1x00_disable calls.
*/
static inline void ucb1x00_disable(struct ucb1x00 *ucb)
{
mcp_disable(ucb->mcp);
}
/**
* ucb1x00_reg_write - write a UCB1x00 register
* @ucb: UCB1x00 structure describing chip
* @reg: UCB1x00 4-bit register index to write
* @val: UCB1x00 16-bit value to write
*
* Write the UCB1x00 register @reg with value @val. The SIB
* clock must be running for this function to return.
*/
static inline void ucb1x00_reg_write(struct ucb1x00 *ucb, unsigned int reg, unsigned int val)
{
mcp_reg_write(ucb->mcp, reg, val);
}
/**
* ucb1x00_reg_read - read a UCB1x00 register
* @ucb: UCB1x00 structure describing chip
* @reg: UCB1x00 4-bit register index to write
*
* Read the UCB1x00 register @reg and return its value. The SIB
* clock must be running for this function to return.
*/
static inline unsigned int ucb1x00_reg_read(struct ucb1x00 *ucb, unsigned int reg)
{
return mcp_reg_read(ucb->mcp, reg);
}
/**
* ucb1x00_set_audio_divisor -
* @ucb: UCB1x00 structure describing chip
* @div: SIB clock divisor
*/
static inline void ucb1x00_set_audio_divisor(struct ucb1x00 *ucb, unsigned int div)
{
mcp_set_audio_divisor(ucb->mcp, div);
}
/**
* ucb1x00_set_telecom_divisor -
* @ucb: UCB1x00 structure describing chip
* @div: SIB clock divisor
*/
static inline void ucb1x00_set_telecom_divisor(struct ucb1x00 *ucb, unsigned int div)
{
mcp_set_telecom_divisor(ucb->mcp, div);
}
void ucb1x00_io_set_dir(struct ucb1x00 *ucb, unsigned int, unsigned int);
void ucb1x00_io_write(struct ucb1x00 *ucb, unsigned int, unsigned int);
unsigned int ucb1x00_io_read(struct ucb1x00 *ucb);
#define UCB_NOSYNC (0)
#define UCB_SYNC (1)
unsigned int ucb1x00_adc_read(struct ucb1x00 *ucb, int adc_channel, int sync);
void ucb1x00_adc_enable(struct ucb1x00 *ucb);
void ucb1x00_adc_disable(struct ucb1x00 *ucb);
#endif