mirror of
https://github.com/thead-yocto-mirror/vi-kernel
synced 2026-08-04 22:20:57 +02:00
91 lines
2.2 KiB
C
Executable File
91 lines
2.2 KiB
C
Executable File
/*
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* Copyright (C) 2021 Alibaba Group Holding Limited
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* Author: liuyitong <yitong.lyt@alibaba-inc.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <asm/io.h>
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#include <linux/cdev.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/delay.h>
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#include <linux/clk.h>
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#include <linux/io.h>
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#include <linux/mm.h>
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#include <linux/timer.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/ioctl.h>
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#include <linux/poll.h>
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#include <linux/workqueue.h>
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#include <linux/slab.h>
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#include <linux/proc_fs.h>
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#include <linux/debugfs.h>
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#include <linux/miscdevice.h>
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#include <linux/uaccess.h>
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#include <linux/interrupt.h>
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#include <linux/of.h>
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#include "bm_printk.h"
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#include "bm_csi_ioctl.h"
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#include "bm_csi_hw.h"
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#include "bm_csi_dphy.h"
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#include "dw-dphy-rx.h"
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#define check_retval(x)\
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do {\
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if ((x))\
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return -EIO;\
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} while (0)
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#define REG_DPHY_OFFSET 0x40
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int bm_csi_dphy_write_reg(struct bm_csi_drvdata *drvdata, void *__user args)
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{
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struct bm_csi_reg_t reg;
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check_retval(copy_from_user(®, args, sizeof(reg)));
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struct dw_dphy_rx *dphy = drvdata->dphy;
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writel(reg.value, dphy->base_address + reg.offset);
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bm_info("%s addr 0x%08x val 0x%08x\n", __func__, reg.offset, reg.value);
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}
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int bm_csi_dphy_init(struct bm_csi_drvdata *drvdata, void *__user args)
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{
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struct dw_dphy_rx *dphy = drvdata->dphy;
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/*
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dphy->dphy_freq = 20000000;
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dphy->phy_type = 1;
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dphy->dphy_te_len = BIT12;
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dphy->lanes_config = CTRL_4_LANES;
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dphy->dphy_gen = GEN3;
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dphy->max_lanes = CTRL_4_LANES;
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dphy->lp_time = 1000; //ns
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dphy->base_address = drvdata->base + REG_DPHY_OFFSET;
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//dphy->dphy1_if_addr =visysreg
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dw_dphy_reset(dphy);
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dw_dphy_power_on(dphy);
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dw_dphy_init(dphy);
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*/
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return 0;
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}
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int bm_csi_dphy_uinit(struct bm_csi_drvdata *drvdata, void *__user args)
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{
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struct dw_dphy_rx *dphy = &drvdata->dphy;
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dw_dphy_reset(dphy);
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dw_dphy_power_off(dphy);
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}
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int bm_csi_dphy_reset(struct bm_csi_drvdata *drvdata, void *__user args)
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{
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struct dw_dphy_rx *dphy = &drvdata->dphy;
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dw_dphy_reset(dphy);
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}
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