1/* 2 * Register definitions and functions for: 3 * Philips UCB1400 driver 4 * 5 * Based on ucb1400_ts: 6 * Author: Nicolas Pitre 7 * Created: September 25, 2006 8 * Copyright: MontaVista Software, Inc. 9 * 10 * Spliting done by: Marek Vasut <marek.vasut@gmail.com> 11 * If something doesnt work and it worked before spliting, e-mail me, 12 * dont bother Nicolas please ;-) 13 * 14 * This program is free software; you can redistribute it and/or modify 15 * it under the terms of the GNU General Public License version 2 as 16 * published by the Free Software Foundation. 17 * 18 * This code is heavily based on ucb1x00-*.c copyrighted by Russell King 19 * covering the UCB1100, UCB1200 and UCB1300.. Support for the UCB1400 has 20 * been made separate from ucb1x00-core/ucb1x00-ts on Russell's request. 21 */ 22 23#ifndef _LINUX__UCB1400_H 24#define _LINUX__UCB1400_H 25 26#include <sound/ac97_codec.h> 27#include <linux/mutex.h> 28#include <linux/platform_device.h> 29#include <linux/gpio.h> 30 31/* 32 * UCB1400 AC-link registers 33 */ 34 35#define UCB_IO_DATA 0x5a 36#define UCB_IO_DIR 0x5c 37#define UCB_IE_RIS 0x5e 38#define UCB_IE_FAL 0x60 39#define UCB_IE_STATUS 0x62 40#define UCB_IE_CLEAR 0x62 41#define UCB_IE_ADC (1 << 11) 42#define UCB_IE_TSPX (1 << 12) 43 44#define UCB_TS_CR 0x64 45#define UCB_TS_CR_TSMX_POW (1 << 0) 46#define UCB_TS_CR_TSPX_POW (1 << 1) 47#define UCB_TS_CR_TSMY_POW (1 << 2) 48#define UCB_TS_CR_TSPY_POW (1 << 3) 49#define UCB_TS_CR_TSMX_GND (1 << 4) 50#define UCB_TS_CR_TSPX_GND (1 << 5) 51#define UCB_TS_CR_TSMY_GND (1 << 6) 52#define UCB_TS_CR_TSPY_GND (1 << 7) 53#define UCB_TS_CR_MODE_INT (0 << 8) 54#define UCB_TS_CR_MODE_PRES (1 << 8) 55#define UCB_TS_CR_MODE_POS (2 << 8) 56#define UCB_TS_CR_BIAS_ENA (1 << 11) 57#define UCB_TS_CR_TSPX_LOW (1 << 12) 58#define UCB_TS_CR_TSMX_LOW (1 << 13) 59 60#define UCB_ADC_CR 0x66 61#define UCB_ADC_SYNC_ENA (1 << 0) 62#define UCB_ADC_VREFBYP_CON (1 << 1) 63#define UCB_ADC_INP_TSPX (0 << 2) 64#define UCB_ADC_INP_TSMX (1 << 2) 65#define UCB_ADC_INP_TSPY (2 << 2) 66#define UCB_ADC_INP_TSMY (3 << 2) 67#define UCB_ADC_INP_AD0 (4 << 2) 68#define UCB_ADC_INP_AD1 (5 << 2) 69#define UCB_ADC_INP_AD2 (6 << 2) 70#define UCB_ADC_INP_AD3 (7 << 2) 71#define UCB_ADC_EXT_REF (1 << 5) 72#define UCB_ADC_START (1 << 7) 73#define UCB_ADC_ENA (1 << 15) 74 75#define UCB_ADC_DATA 0x68 76#define UCB_ADC_DAT_VALID (1 << 15) 77 78#define UCB_FCSR 0x6c 79#define UCB_FCSR_AVE (1 << 12) 80 81#define UCB_ADC_DAT_MASK 0x3ff 82 83#define UCB_ID 0x7e 84#define UCB_ID_1400 0x4304 85 86struct ucb1400_gpio_data { 87 int gpio_offset; 88 int (*gpio_setup)(struct device *dev, int ngpio); 89 int (*gpio_teardown)(struct device *dev, int ngpio); 90}; 91 92struct ucb1400_gpio { 93 struct gpio_chip gc; 94 struct snd_ac97 *ac97; 95}; 96 97struct ucb1400_ts { 98 struct input_dev *ts_idev; 99 struct task_struct *ts_task; 100 int id; 101 wait_queue_head_t ts_wait; 102 unsigned int ts_restart:1; 103 int irq; 104 unsigned int irq_pending; /* not bit field shared */ 105 struct snd_ac97 *ac97; 106}; 107 108struct ucb1400 { 109 struct platform_device *ucb1400_ts; 110 struct platform_device *ucb1400_gpio; 111}; 112 113struct ucb1400_pdata { 114 int irq; 115}; 116 117static inline u16 ucb1400_reg_read(struct snd_ac97 *ac97, u16 reg) 118{ 119 return ac97->bus->ops->read(ac97, reg); 120} 121 122static inline void ucb1400_reg_write(struct snd_ac97 *ac97, u16 reg, u16 val) 123{ 124 ac97->bus->ops->write(ac97, reg, val); 125} 126 127static inline u16 ucb1400_gpio_get_value(struct snd_ac97 *ac97, u16 gpio) 128{ 129 return ucb1400_reg_read(ac97, UCB_IO_DATA) & (1 << gpio); 130} 131 132static inline void ucb1400_gpio_set_value(struct snd_ac97 *ac97, u16 gpio, 133 u16 val) 134{ 135 ucb1400_reg_write(ac97, UCB_IO_DATA, val ? 136 ucb1400_reg_read(ac97, UCB_IO_DATA) | (1 << gpio) : 137 ucb1400_reg_read(ac97, UCB_IO_DATA) & ~(1 << gpio)); 138} 139 140static inline u16 ucb1400_gpio_get_direction(struct snd_ac97 *ac97, u16 gpio) 141{ 142 return ucb1400_reg_read(ac97, UCB_IO_DIR) & (1 << gpio); 143} 144 145static inline void ucb1400_gpio_set_direction(struct snd_ac97 *ac97, u16 gpio, 146 u16 dir) 147{ 148 ucb1400_reg_write(ac97, UCB_IO_DIR, dir ? 149 ucb1400_reg_read(ac97, UCB_IO_DIR) | (1 << gpio) : 150 ucb1400_reg_read(ac97, UCB_IO_DIR) & ~(1 << gpio)); 151} 152 153static inline void ucb1400_adc_enable(struct snd_ac97 *ac97) 154{ 155 ucb1400_reg_write(ac97, UCB_ADC_CR, UCB_ADC_ENA); 156} 157 158static inline void ucb1400_adc_disable(struct snd_ac97 *ac97) 159{ 160 ucb1400_reg_write(ac97, UCB_ADC_CR, 0); 161} 162 163 164unsigned int ucb1400_adc_read(struct snd_ac97 *ac97, u16 adc_channel, 165 int adcsync); 166 167#ifdef CONFIG_GPIO_UCB1400 168void __init ucb1400_gpio_set_data(struct ucb1400_gpio_data *data); 169#else 170static inline void ucb1400_gpio_set_data(struct ucb1400_gpio_data *data) {} 171#endif 172 173#endif 174