174 lines
4.4 KiB
C
174 lines
4.4 KiB
C
/*
|
|
* 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 program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* 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_data {
|
|
int gpio_offset;
|
|
int (*gpio_setup)(struct device *dev, int ngpio);
|
|
int (*gpio_teardown)(struct device *dev, int ngpio);
|
|
};
|
|
|
|
struct ucb1400_gpio {
|
|
struct gpio_chip gc;
|
|
struct snd_ac97 *ac97;
|
|
};
|
|
|
|
struct ucb1400_ts {
|
|
struct input_dev *ts_idev;
|
|
struct task_struct *ts_task;
|
|
int id;
|
|
wait_queue_head_t ts_wait;
|
|
unsigned int ts_restart:1;
|
|
int irq;
|
|
unsigned int irq_pending; /* not bit field shared */
|
|
struct snd_ac97 *ac97;
|
|
};
|
|
|
|
struct ucb1400 {
|
|
struct platform_device *ucb1400_ts;
|
|
struct platform_device *ucb1400_gpio;
|
|
};
|
|
|
|
struct ucb1400_pdata {
|
|
int irq;
|
|
};
|
|
|
|
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);
|
|
|
|
#ifdef CONFIG_GPIO_UCB1400
|
|
void __init ucb1400_gpio_set_data(struct ucb1400_gpio_data *data);
|
|
#else
|
|
static inline void ucb1400_gpio_set_data(struct ucb1400_gpio_data *data) {}
|
|
#endif
|
|
|
|
#endif
|