Camera: Bring over camera driver changes
Bring over camera driver changes as of msm-4.19 commit 5a5551a7 (Merge "msm: camera: reqmgr: Fix CRM shift one req issue"). Change-Id: Ic0c2b2d74d1b3470c1c51d98228e312fb13c501a Signed-off-by: Jigarkumar Zala <jzala@codeaurora.org>
This commit is contained in:
Jigarkumar Zala
232
drivers/cam_utils/cam_io_util.h
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232
drivers/cam_utils/cam_io_util.h
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2011-2014, 2017-2018, The Linux Foundation. All rights reserved.
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*/
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#ifndef _CAM_IO_UTIL_H_
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#define _CAM_IO_UTIL_H_
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#include <linux/types.h>
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/**
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* cam_io_w()
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*
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* @brief: Camera IO util for register write
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*
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* @data: Value to be written
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* @addr: Address used to write the value
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*
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* @return: Success or Failure
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*/
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int cam_io_w(uint32_t data, void __iomem *addr);
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/**
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* cam_io_w_mb()
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*
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* @brief: Camera IO util for register write with memory barrier.
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* Memory Barrier is only before the write to ensure the
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* order. If need to ensure this write is also flushed
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* call wmb() independently in the caller.
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*
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* @data: Value to be written
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* @addr: Address used to write the value
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*
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* @return: Success or Failure
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*/
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int cam_io_w_mb(uint32_t data, void __iomem *addr);
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/**
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* cam_io_r()
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*
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* @brief: Camera IO util for register read
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*
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* @addr: Address of register to be read
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*
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* @return: Value read from the register address
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*/
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uint32_t cam_io_r(void __iomem *addr);
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/**
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* cam_io_r_mb()
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*
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* @brief: Camera IO util for register read with memory barrier.
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* Memory Barrier is only before the write to ensure the
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* order. If need to ensure this write is also flushed
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* call rmb() independently in the caller.
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*
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* @addr: Address of register to be read
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*
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* @return: Value read from the register address
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*/
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uint32_t cam_io_r_mb(void __iomem *addr);
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/**
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* cam_io_memcpy()
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*
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* @brief: Camera IO util for memory to register copy
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*
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* @dest_addr: Destination register address
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* @src_addr: Source regiser address
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* @len: Range to be copied
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*
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* @return: Success or Failure
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*/
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int cam_io_memcpy(void __iomem *dest_addr,
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void __iomem *src_addr, uint32_t len);
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/**
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* cam_io_memcpy_mb()
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*
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* @brief: Camera IO util for memory to register copy
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* with barrier.
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* Memory Barrier is only before the write to ensure the
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* order. If need to ensure this write is also flushed
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* call wmb() independently in the caller.
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*
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* @dest_addr: Destination register address
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* @src_addr: Source regiser address
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* @len: Range to be copied
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*
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* @return: Success or Failure
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*/
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int cam_io_memcpy_mb(void __iomem *dest_addr,
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void __iomem *src_addr, uint32_t len);
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/**
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* cam_io_poll_value_wmask()
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*
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* @brief: Poll register value with bitmask.
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*
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* @addr: Register address to be polled
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* @wait_data: Wait until @bmask read from @addr matches this data
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* @bmask: Bit mask
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* @retry: Number of retry
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* @min_usecs: Minimum time to wait for retry
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* @max_usecs: Maximum time to wait for retry
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*
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* @return: Success or Failure
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*
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* This function can sleep so it should not be called from interrupt
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* handler, spin_lock etc.
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*/
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int cam_io_poll_value_wmask(void __iomem *addr, uint32_t wait_data,
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uint32_t bmask, uint32_t retry, unsigned long min_usecs,
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unsigned long max_usecs);
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/**
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* cam_io_poll_value()
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*
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* @brief: Poll register value
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*
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* @addr: Register address to be polled
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* @wait_data: Wait until value read from @addr matches this data
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* @retry: Number of retry
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* @min_usecs: Minimum time to wait for retry
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* @max_usecs: Maximum time to wait for retry
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*
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* @return: Success or Failure
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*
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* This function can sleep so it should not be called from interrupt
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* handler, spin_lock etc.
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*/
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int cam_io_poll_value(void __iomem *addr, uint32_t wait_data, uint32_t retry,
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unsigned long min_usecs, unsigned long max_usecs);
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/**
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* cam_io_w_same_offset_block()
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*
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* @brief: Write a block of data to same address
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*
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* @data: Block data to be written
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* @addr: Register offset to be written.
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* @len: Number of the data to be written
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*
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* @return: Success or Failure
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*/
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int cam_io_w_same_offset_block(const uint32_t *data, void __iomem *addr,
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uint32_t len);
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/**
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* cam_io_w_mb_same_offset_block()
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*
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* @brief: Write a block of data to same address with barrier.
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* Memory Barrier is only before the write to ensure the
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* order. If need to ensure this write is also flushed
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* call wmb() independently in the caller.
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*
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* @data: Block data to be written
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* @addr: Register offset to be written.
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* @len: Number of the data to be written
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*
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* @return: Success or Failure
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*/
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int cam_io_w_mb_same_offset_block(const uint32_t *data, void __iomem *addr,
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uint32_t len);
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/**
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* cam_io_w_offset_val_block()
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*
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* @brief: This API is to write a block of registers
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* represented by a 2 dimensional array table with
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* register offset and value pair
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*
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* offset0, value0,
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* offset1, value1,
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* offset2, value2,
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* and so on...
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*
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* @data: Pointer to 2-dimensional offset-value array
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* @addr_base: Base address to which offset will be added to
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* get the register address
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* @len: Length of offset-value pair array to be written in
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* number of uin32_t
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*
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* @return: Success or Failure
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*
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*/
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int32_t cam_io_w_offset_val_block(const uint32_t data[][2],
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void __iomem *addr_base, uint32_t len);
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/**
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* cam_io_w_mb_offset_val_block()
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*
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* @brief: This API is to write a block of registers
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* represented by a 2 dimensional array table with
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* register offset and value pair with memory barrier.
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* Memory Barrier is only before the write to ensure the
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* order. If need to ensure this write is also flushed
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* call wmb() independently in the caller.
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* The OFFSETS NEED to be different because of the way
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* barrier is used here.
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*
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* offset0, value0,
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* offset1, value1,
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* offset2, value2,
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* and so on...
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*
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* @data: Pointer to 2-dimensional offset-value array
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* @addr_base: Base address to which offset will be added to
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* get the register address
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* @len: Length of offset-value pair array to be written in
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* number of uin32_t
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*
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* @return: Success or Failure
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*
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*/
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int32_t cam_io_w_mb_offset_val_block(const uint32_t data[][2],
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void __iomem *addr_base, uint32_t len);
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/**
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* cam_io_dump()
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*
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* @brief: Camera IO util for dumping a range of register
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*
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* @base_addr: Start register address for the dumping
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* @start_offset: Start register offset for the dump
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* @size: Size specifying the range for dumping
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*
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* @return: Success or Failure
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*/
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int cam_io_dump(void __iomem *base_addr, uint32_t start_offset, int size);
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#endif /* _CAM_IO_UTIL_H_ */
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