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linux-headers-5.4.0-215-generic
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ucb1400.h
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/* 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; int (*gpio_setup)(struct device *dev, int ngpio); int (*gpio_teardown)(struct device *dev, int ngpio); }; 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