/* 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 Söderlund * 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 … /* Register 0x02 */ #define MAX9271_SPREAD_SPECT_0 … #define MAX9271_SPREAD_SPECT_05 … #define MAX9271_SPREAD_SPECT_15 … #define MAX9271_SPREAD_SPECT_1 … #define MAX9271_SPREAD_SPECT_2 … #define MAX9271_SPREAD_SPECT_3 … #define MAX9271_SPREAD_SPECT_4 … #define MAX9271_R02_RES … #define MAX9271_PCLK_AUTODETECT … #define MAX9271_SERIAL_AUTODETECT … /* Register 0x04 */ #define MAX9271_SEREN … #define MAX9271_CLINKEN … #define MAX9271_PRBSEN … #define MAX9271_SLEEP … #define MAX9271_INTTYPE_I2C … #define MAX9271_INTTYPE_UART … #define MAX9271_INTTYPE_NONE … #define MAX9271_REVCCEN … #define MAX9271_FWDCCEN … /* Register 0x07 */ #define MAX9271_DBL … #define MAX9271_DRS … #define MAX9271_BWS … #define MAX9271_ES … #define MAX9271_HVEN … #define MAX9271_EDC_1BIT_PARITY … #define MAX9271_EDC_6BIT_CRC … #define MAX9271_EDC_6BIT_HAMMING … /* Register 0x08 */ #define MAX9271_INVVS … #define MAX9271_INVHS … #define MAX9271_REV_LOGAIN … #define MAX9271_REV_HIVTH … /* Register 0x09 */ #define MAX9271_ID … /* Register 0x0d */ #define MAX9271_I2CLOCACK … #define MAX9271_I2CSLVSH_1046NS_469NS … #define MAX9271_I2CSLVSH_938NS_352NS … #define MAX9271_I2CSLVSH_469NS_234NS … #define MAX9271_I2CSLVSH_352NS_117NS … #define MAX9271_I2CMSTBT_837KBPS … #define MAX9271_I2CMSTBT_533KBPS … #define MAX9271_I2CMSTBT_339KBPS … #define MAX9271_I2CMSTBT_173KBPS … #define MAX9271_I2CMSTBT_105KBPS … #define MAX9271_I2CMSTBT_84KBPS … #define MAX9271_I2CMSTBT_28KBPS … #define MAX9271_I2CMSTBT_8KBPS … #define MAX9271_I2CSLVTO_NONE … #define MAX9271_I2CSLVTO_1024US … #define MAX9271_I2CSLVTO_256US … #define MAX9271_I2CSLVTO_64US … /* Register 0x0f */ #define MAX9271_GPIO5OUT … #define MAX9271_GPIO4OUT … #define MAX9271_GPIO3OUT … #define MAX9271_GPIO2OUT … #define MAX9271_GPIO1OUT … #define MAX9271_GPO … /* Register 0x15 */ #define MAX9271_PCLKDET … /** * struct max9271_device - max9271 device * @client: The i2c client for the max9271 instance */ struct max9271_device { … }; /** * 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 0x04, 0x07 and 0x02. * * 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__ */
Codebase Browser
linux