/* SPDX-License-Identifier: GPL-2.0+ */ /* * Copyright ( C ) 2017 - 2020 Jacopo Mondi * Copyright ( C ) 2017 - 2020 Kieran Bingham * Copyright ( C ) 2017 - 2020 Laurent Pinchart * Copyright ( C ) 2017 - 2020 Niklas S ö derlund * Copyright ( C ) 2016 Renesas Electronics Corporation * Copyright ( C ) 2015 Cogent Embedded , Inc . #ifndef __MEDIA_I2C_MAX9271_H__#define __MEDIA_I2C_MAX9271_H__#include <linux/i2c.h>#define MAX9271_DEFAULT_ADDR 0 x40/* Register 0x02 */ #define MAX9271_SPREAD_SPECT_0 (0 << 5 )#define MAX9271_SPREAD_SPECT_05 (1 << 5 )#define MAX9271_SPREAD_SPECT_15 (2 << 5 )#define MAX9271_SPREAD_SPECT_1 (5 << 5 )#define MAX9271_SPREAD_SPECT_2 (3 << 5 )#define MAX9271_SPREAD_SPECT_3 (6 << 5 )#define MAX9271_SPREAD_SPECT_4 (7 << 5 )#define MAX9271_R02_RES BIT(4 )#define MAX9271_PCLK_AUTODETECT (3 << 2 )#define MAX9271_SERIAL_AUTODETECT (0 x03)/* Register 0x04 */ #define MAX9271_SEREN BIT(7 )#define MAX9271_CLINKEN BIT(6 )#define MAX9271_PRBSEN BIT(5 )#define MAX9271_SLEEP BIT(4 )#define MAX9271_INTTYPE_I2C (0 << 2 )#define MAX9271_INTTYPE_UART (1 << 2 )#define MAX9271_INTTYPE_NONE (2 << 2 )#define MAX9271_REVCCEN BIT(1 )#define MAX9271_FWDCCEN BIT(0 )/* Register 0x07 */ #define MAX9271_DBL BIT(7 )#define MAX9271_DRS BIT(6 )#define MAX9271_BWS BIT(5 )#define MAX9271_ES BIT(4 )#define MAX9271_HVEN BIT(2 )#define MAX9271_EDC_1BIT_PARITY (0 << 0 )#define MAX9271_EDC_6BIT_CRC (1 << 0 )#define MAX9271_EDC_6BIT_HAMMING (2 << 0 )/* Register 0x08 */ #define MAX9271_INVVS BIT(7 )#define MAX9271_INVHS BIT(6 )#define MAX9271_REV_LOGAIN BIT(3 )#define MAX9271_REV_HIVTH BIT(0 )/* Register 0x09 */ #define MAX9271_ID 0 x09/* Register 0x0d */ #define MAX9271_I2CLOCACK BIT(7 )#define MAX9271_I2CSLVSH_1046NS_469NS (3 << 5 )#define MAX9271_I2CSLVSH_938NS_352NS (2 << 5 )#define MAX9271_I2CSLVSH_469NS_234NS (1 << 5 )#define MAX9271_I2CSLVSH_352NS_117NS (0 << 5 )#define MAX9271_I2CMSTBT_837KBPS (7 << 2 )#define MAX9271_I2CMSTBT_533KBPS (6 << 2 )#define MAX9271_I2CMSTBT_339KBPS (5 << 2 )#define MAX9271_I2CMSTBT_173KBPS (4 << 2 )#define MAX9271_I2CMSTBT_105KBPS (3 << 2 )#define MAX9271_I2CMSTBT_84KBPS (2 << 2 )#define MAX9271_I2CMSTBT_28KBPS (1 << 2 )#define MAX9271_I2CMSTBT_8KBPS (0 << 2 )#define MAX9271_I2CSLVTO_NONE (3 << 0 )#define MAX9271_I2CSLVTO_1024US (2 << 0 )#define MAX9271_I2CSLVTO_256US (1 << 0 )#define MAX9271_I2CSLVTO_64US (0 << 0 )/* Register 0x0f */ #define MAX9271_GPIO5OUT BIT(5 )#define MAX9271_GPIO4OUT BIT(4 )#define MAX9271_GPIO3OUT BIT(3 )#define MAX9271_GPIO2OUT BIT(2 )#define MAX9271_GPIO1OUT BIT(1 )#define MAX9271_GPO BIT(0 )/* Register 0x15 */ #define MAX9271_PCLKDET BIT(0 )/** * struct max9271_device - max9271 device * @ client : The i2c client for the max9271 instance struct max9271_device {struct i2c_client *client;/** * max9271_wake_up ( ) - Wake up the serializer by issuing an i2c transaction * @ dev : The max9271 device * * This function shall be called before any other interaction with the * serializer . void max9271_wake_up(struct max9271_device *dev);/** * max9271_set_serial_link ( ) - Enable / disable serial link * @ dev : The max9271 device * @ enable : Serial link enable / disable flag * * Return 0 on success or a negative error code on failure int max9271_set_serial_link(struct max9271_device *dev, bool enable);/** * max9271_configure_i2c ( ) - Configure I2C bus parameters * @ dev : The max9271 device * @ i2c_config : The I2C bus configuration bit mask * * Configure MAX9271 I2C interface . The bus configuration provided in the * @ i2c_config parameter shall be assembled using bit values defined by the * MAX9271_I2C * macros . * * Return 0 on success or a negative error code on failure int max9271_configure_i2c(struct max9271_device *dev, u8 i2c_config);/** * max9271_set_high_threshold ( ) - Enable or disable reverse channel high * threshold * @ dev : The max9271 device * @ enable : High threshold enable / disable flag * * Return 0 on success or a negative error code on failure int max9271_set_high_threshold(struct max9271_device *dev, bool enable);/** * max9271_configure_gmsl_link ( ) - Configure the GMSL link * @ dev : The max9271 device * * FIXME : the GMSL link configuration is currently hardcoded and performed * by programming registers 0 x04 , 0 x07 and 0 x02 . * * Return 0 on success or a negative error code on failure int max9271_configure_gmsl_link(struct max9271_device *dev);/** * max9271_set_gpios ( ) - Set gpio lines to physical high value * @ dev : The max9271 device * @ gpio_mask : The mask of gpio lines to set to high value * * The @ gpio_mask parameter shall be assembled using the MAX9271_GP [ IO | O ] * * bit values . * * Return 0 on success or a negative error code on failure int max9271_set_gpios(struct max9271_device *dev, u8 gpio_mask);/** * max9271_clear_gpios ( ) - Set gpio lines to physical low value * @ dev : The max9271 device * @ gpio_mask : The mask of gpio lines to set to low value * * The @ gpio_mask parameter shall be assembled using the MAX9271_GP [ IO | O ] * * bit values . * * Return 0 on success or a negative error code on failure int max9271_clear_gpios(struct max9271_device *dev, u8 gpio_mask);/** * max9271_enable_gpios ( ) - Enable gpio lines * @ dev : The max9271 device * @ gpio_mask : The mask of gpio lines to enable * * The @ gpio_mask parameter shall be assembled using the MAX9271_GPIO * * bit values . GPO line is always enabled by default . * * Return 0 on success or a negative error code on failure int max9271_enable_gpios(struct max9271_device *dev, u8 gpio_mask);/** * max9271_disable_gpios ( ) - Disable gpio lines * @ dev : The max9271 device * @ gpio_mask : The mask of gpio lines to disable * * The @ gpio_mask parameter shall be assembled using the MAX9271_GPIO * * bit values . GPO line is always enabled by default and cannot be disabled . * * Return 0 on success or a negative error code on failure int max9271_disable_gpios(struct max9271_device *dev, u8 gpio_mask);/** * max9271_verify_id ( ) - Read and verify MAX9271 id * @ dev : The max9271 device * * Return 0 on success or a negative error code on failure int max9271_verify_id(struct max9271_device *dev);/** * max9271_set_address ( ) - Program a new I2C address * @ dev : The max9271 device * @ addr : The new I2C address in 7 - bit format * * This function only takes care of programming the new I2C address @ addr to * in the MAX9271 chip registers , it is responsiblity of the caller to set * the i2c address client to the @ addr value to be able to communicate with * the MAX9271 chip using the I2C framework APIs after this function returns . * * Return 0 on success or a negative error code on failure int max9271_set_address(struct max9271_device *dev, u8 addr);/** * max9271_set_deserializer_address ( ) - Program the remote deserializer address * @ dev : The max9271 device * @ addr : The deserializer I2C address in 7 - bit format * * Return 0 on success or a negative error code on failure int max9271_set_deserializer_address(struct max9271_device *dev, u8 addr);/** * max9271_set_translation ( ) - Program I2C address translation * @ dev : The max9271 device * @ source : The I2C source address * @ dest : The I2C destination address * * Program address translation from @ source to @ dest . This is required to * communicate with local devices that do not support address reprogramming . * * TODO : The device supports translation of two address , this function currently * supports a single one . * * Return 0 on success or a negative error code on failure int max9271_set_translation(struct max9271_device *dev, u8 source, u8 dest);#endif /* __MEDIA_I2C_MAX9271_H__ */
Messung V0.5 in Prozent C=91 H=93 G=91
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