[linux-block.git] / include / linux / ucb1400.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Register definitions and functions for:
 *  Philips UCB1400 driver
 *
 * Based on ucb1400_ts:
 *  Author:	Nicolas Pitre
 *  Created:	September 25, 2006
 *  Copyright:	MontaVista Software, Inc.
 *
 * Spliting done by: Marek Vasut <marek.vasut@gmail.com>
 * If something doesn't work and it worked before spliting, e-mail me,
 * dont bother Nicolas please ;-)
 *
 * This code is heavily based on ucb1x00-*.c copyrighted by Russell King
 * covering the UCB1100, UCB1200 and UCB1300..  Support for the UCB1400 has
 * been made separate from ucb1x00-core/ucb1x00-ts on Russell's request.
 */

#ifndef _LINUX__UCB1400_H
#define _LINUX__UCB1400_H

#include <sound/ac97_codec.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>

/*
 * UCB1400 AC-link registers
 */

#define UCB_IO_DATA		0x5a
#define UCB_IO_DIR		0x5c
#define UCB_IE_RIS		0x5e
#define UCB_IE_FAL		0x60
#define UCB_IE_STATUS		0x62
#define UCB_IE_CLEAR		0x62
#define UCB_IE_ADC		(1 << 11)
#define UCB_IE_TSPX		(1 << 12)

#define UCB_TS_CR		0x64
#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		0x66
#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		0x68
#define UCB_ADC_DAT_VALID	(1 << 15)

#define UCB_FCSR		0x6c
#define UCB_FCSR_AVE		(1 << 12)

#define UCB_ADC_DAT_MASK	0x3ff

#define UCB_ID			0x7e
#define UCB_ID_1400             0x4304

struct ucb1400_gpio {
	struct gpio_chip	gc;
	struct snd_ac97		*ac97;
	int			gpio_offset;
};

struct ucb1400_ts {
	struct input_dev	*ts_idev;
	int			id;
	int			irq;
	struct snd_ac97		*ac97;
	wait_queue_head_t	ts_wait;
	bool			stopped;
};

struct ucb1400 {
	struct platform_device	*ucb1400_ts;
	struct platform_device	*ucb1400_gpio;
};

struct ucb1400_pdata {
	int	irq;
	int	gpio_offset;
	int	(*gpio_setup)(struct device *dev, int ngpio);
	int	(*gpio_teardown)(struct device *dev, int ngpio);
};

static inline u16 ucb1400_reg_read(struct snd_ac97 *ac97, u16 reg)
{
	return ac97->bus->ops->read(ac97, reg);
}

static inline void ucb1400_reg_write(struct snd_ac97 *ac97, u16 reg, u16 val)
{
	ac97->bus->ops->write(ac97, reg, val);
}

static inline u16 ucb1400_gpio_get_value(struct snd_ac97 *ac97, u16 gpio)
{
	return ucb1400_reg_read(ac97, UCB_IO_DATA) & (1 << gpio);
}

static inline void ucb1400_gpio_set_value(struct snd_ac97 *ac97, u16 gpio,
						u16 val)
{
	ucb1400_reg_write(ac97, UCB_IO_DATA, val ?
			ucb1400_reg_read(ac97, UCB_IO_DATA) | (1 << gpio) :
			ucb1400_reg_read(ac97, UCB_IO_DATA) & ~(1 << gpio));
}

static inline u16 ucb1400_gpio_get_direction(struct snd_ac97 *ac97, u16 gpio)
{
	return ucb1400_reg_read(ac97, UCB_IO_DIR) & (1 << gpio);
}

static inline void ucb1400_gpio_set_direction(struct snd_ac97 *ac97, u16 gpio,
						u16 dir)
{
	ucb1400_reg_write(ac97, UCB_IO_DIR, dir ?
			ucb1400_reg_read(ac97, UCB_IO_DIR) | (1 << gpio) :
			ucb1400_reg_read(ac97, UCB_IO_DIR) & ~(1 << gpio));
}

static inline void ucb1400_adc_enable(struct snd_ac97 *ac97)
{
	ucb1400_reg_write(ac97, UCB_ADC_CR, UCB_ADC_ENA);
}

static inline void ucb1400_adc_disable(struct snd_ac97 *ac97)
{
	ucb1400_reg_write(ac97, UCB_ADC_CR, 0);
}


unsigned int ucb1400_adc_read(struct snd_ac97 *ac97, u16 adc_channel,
			      int adcsync);

#endif
Commit	Line	Data
d2912cb1	1	/* SPDX-License-Identifier: GPL-2.0-only */
d9105c2b MV	2	/*
	3	* Register definitions and functions for:
	4	* Philips UCB1400 driver
	5	*
	6	* Based on ucb1400_ts:
	7	* Author: Nicolas Pitre
	8	* Created: September 25, 2006
	9	* Copyright: MontaVista Software, Inc.
	10	*
	11	* Spliting done by: Marek Vasut <marek.vasut@gmail.com>
25985edc	12	* If something doesn't work and it worked before spliting, e-mail me,
d9105c2b MV	13	* dont bother Nicolas please ;-)
d9105c2b MV	14	*
d9105c2b MV	15	* This code is heavily based on ucb1x00-*.c copyrighted by Russell King
	16	* covering the UCB1100, UCB1200 and UCB1300.. Support for the UCB1400 has
	17	* been made separate from ucb1x00-core/ucb1x00-ts on Russell's request.
	18	*/
	19
	20	#ifndef _LINUX__UCB1400_H
	21	#define _LINUX__UCB1400_H
	22
	23	#include <sound/ac97_codec.h>
	24	#include <linux/mutex.h>
	25	#include <linux/platform_device.h>
4cf8e53b	26	#include <linux/gpio.h>
d9105c2b MV	27
	28	/*
	29	* UCB1400 AC-link registers
	30	*/
	31
	32	#define UCB_IO_DATA 0x5a
	33	#define UCB_IO_DIR 0x5c
	34	#define UCB_IE_RIS 0x5e
	35	#define UCB_IE_FAL 0x60
	36	#define UCB_IE_STATUS 0x62
	37	#define UCB_IE_CLEAR 0x62
	38	#define UCB_IE_ADC (1 << 11)
	39	#define UCB_IE_TSPX (1 << 12)
	40
	41	#define UCB_TS_CR 0x64
	42	#define UCB_TS_CR_TSMX_POW (1 << 0)
	43	#define UCB_TS_CR_TSPX_POW (1 << 1)
	44	#define UCB_TS_CR_TSMY_POW (1 << 2)
	45	#define UCB_TS_CR_TSPY_POW (1 << 3)
	46	#define UCB_TS_CR_TSMX_GND (1 << 4)
	47	#define UCB_TS_CR_TSPX_GND (1 << 5)
	48	#define UCB_TS_CR_TSMY_GND (1 << 6)
	49	#define UCB_TS_CR_TSPY_GND (1 << 7)
	50	#define UCB_TS_CR_MODE_INT (0 << 8)
	51	#define UCB_TS_CR_MODE_PRES (1 << 8)
	52	#define UCB_TS_CR_MODE_POS (2 << 8)
	53	#define UCB_TS_CR_BIAS_ENA (1 << 11)
	54	#define UCB_TS_CR_TSPX_LOW (1 << 12)
	55	#define UCB_TS_CR_TSMX_LOW (1 << 13)
	56
	57	#define UCB_ADC_CR 0x66
	58	#define UCB_ADC_SYNC_ENA (1 << 0)
	59	#define UCB_ADC_VREFBYP_CON (1 << 1)
	60	#define UCB_ADC_INP_TSPX (0 << 2)
	61	#define UCB_ADC_INP_TSMX (1 << 2)
	62	#define UCB_ADC_INP_TSPY (2 << 2)
	63	#define UCB_ADC_INP_TSMY (3 << 2)
	64	#define UCB_ADC_INP_AD0 (4 << 2)
	65	#define UCB_ADC_INP_AD1 (5 << 2)
	66	#define UCB_ADC_INP_AD2 (6 << 2)
	67	#define UCB_ADC_INP_AD3 (7 << 2)
	68	#define UCB_ADC_EXT_REF (1 << 5)
	69	#define UCB_ADC_START (1 << 7)
	70	#define UCB_ADC_ENA (1 << 15)
	71
	72	#define UCB_ADC_DATA 0x68
	73	#define UCB_ADC_DAT_VALID (1 << 15)
1700f5fd MV	74
	75	#define UCB_FCSR 0x6c
	76	#define UCB_FCSR_AVE (1 << 12)
	77
d9105c2b MV	78	#define UCB_ADC_DAT_MASK 0x3ff
	79
	80	#define UCB_ID 0x7e
	81	#define UCB_ID_1400 0x4304
	82
4cf8e53b MV	83	struct ucb1400_gpio {
	84	struct gpio_chip gc;
	85	struct snd_ac97 *ac97;
360e64d8	86	int gpio_offset;
4cf8e53b MV	87	};
4cf8e53b MV	88
d9105c2b MV	89	struct ucb1400_ts {
d9105c2b MV	90	struct input_dev *ts_idev;
d9105c2b	91	int id;
d9105c2b	92	int irq;
d9105c2b	93	struct snd_ac97 *ac97;
c899afed DT	94	wait_queue_head_t ts_wait;
c899afed DT	95	bool stopped;
d9105c2b MV	96	};
	97
	98	struct ucb1400 {
	99	struct platform_device *ucb1400_ts;
4cf8e53b	100	struct platform_device *ucb1400_gpio;
d9105c2b MV	101	};
d9105c2b MV	102
fb141597 MV	103	struct ucb1400_pdata {
fb141597 MV	104	int irq;
360e64d8 MV	105	int gpio_offset;
	106	int (gpio_setup)(struct device dev, int ngpio);
	107	int (gpio_teardown)(struct device dev, int ngpio);
fb141597 MV	108	};
fb141597 MV	109
d9105c2b MV	110	static inline u16 ucb1400_reg_read(struct snd_ac97 *ac97, u16 reg)
	111	{
	112	return ac97->bus->ops->read(ac97, reg);
	113	}
	114
	115	static inline void ucb1400_reg_write(struct snd_ac97 *ac97, u16 reg, u16 val)
	116	{
	117	ac97->bus->ops->write(ac97, reg, val);
	118	}
	119
	120	static inline u16 ucb1400_gpio_get_value(struct snd_ac97 *ac97, u16 gpio)
	121	{
	122	return ucb1400_reg_read(ac97, UCB_IO_DATA) & (1 << gpio);
	123	}
	124
	125	static inline void ucb1400_gpio_set_value(struct snd_ac97 *ac97, u16 gpio,
	126	u16 val)
	127	{
	128	ucb1400_reg_write(ac97, UCB_IO_DATA, val ?
	129	ucb1400_reg_read(ac97, UCB_IO_DATA) \| (1 << gpio) :
	130	ucb1400_reg_read(ac97, UCB_IO_DATA) & ~(1 << gpio));
	131	}
	132
	133	static inline u16 ucb1400_gpio_get_direction(struct snd_ac97 *ac97, u16 gpio)
	134	{
	135	return ucb1400_reg_read(ac97, UCB_IO_DIR) & (1 << gpio);
	136	}
	137
	138	static inline void ucb1400_gpio_set_direction(struct snd_ac97 *ac97, u16 gpio,
	139	u16 dir)
	140	{
	141	ucb1400_reg_write(ac97, UCB_IO_DIR, dir ?
	142	ucb1400_reg_read(ac97, UCB_IO_DIR) \| (1 << gpio) :
	143	ucb1400_reg_read(ac97, UCB_IO_DIR) & ~(1 << gpio));
	144	}
	145
	146	static inline void ucb1400_adc_enable(struct snd_ac97 *ac97)
	147	{
	148	ucb1400_reg_write(ac97, UCB_ADC_CR, UCB_ADC_ENA);
	149	}
	150
d9105c2b MV	151	static inline void ucb1400_adc_disable(struct snd_ac97 *ac97)
	152	{
	153	ucb1400_reg_write(ac97, UCB_ADC_CR, 0);
	154	}
	155
cbf806dd SAS	156
	157	unsigned int ucb1400_adc_read(struct snd_ac97 *ac97, u16 adc_channel,
	158	int adcsync);
	159
d9105c2b	160	#endif