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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/* drivers/media/platform/s5p-cec/s5p_cec.h3 *4 * Samsung S5P HDMI CEC driver5 *6 * Copyright (c) 2014 Samsung Electronics Co., Ltd.7 */8 9#ifndef _S5P_CEC_H_10#define _S5P_CEC_H_ __FILE__11 12#include <linux/clk.h>13#include <linux/interrupt.h>14#include <linux/kernel.h>15#include <linux/mfd/syscon.h>16#include <linux/module.h>17#include <linux/of.h>18#include <linux/platform_device.h>19#include <linux/pm_runtime.h>20#include <linux/timer.h>21#include <linux/workqueue.h>22#include <media/cec.h>23 24#include "exynos_hdmi_cec.h"25#include "regs-cec.h"26#include "s5p_cec.h"27 28#define CEC_NAME "s5p-cec"29 30#define CEC_STATUS_TX_RUNNING (1 << 0)31#define CEC_STATUS_TX_TRANSFERRING (1 << 1)32#define CEC_STATUS_TX_DONE (1 << 2)33#define CEC_STATUS_TX_ERROR (1 << 3)34#define CEC_STATUS_TX_NACK (1 << 4)35#define CEC_STATUS_TX_BYTES (0xFF << 8)36#define CEC_STATUS_RX_RUNNING (1 << 16)37#define CEC_STATUS_RX_RECEIVING (1 << 17)38#define CEC_STATUS_RX_DONE (1 << 18)39#define CEC_STATUS_RX_ERROR (1 << 19)40#define CEC_STATUS_RX_BCAST (1 << 20)41#define CEC_STATUS_RX_BYTES (0xFF << 24)42 43#define CEC_WORKER_TX_DONE (1 << 0)44#define CEC_WORKER_RX_MSG (1 << 1)45 46/* CEC Rx buffer size */47#define CEC_RX_BUFF_SIZE 1648/* CEC Tx buffer size */49#define CEC_TX_BUFF_SIZE 1650 51enum cec_state {52 STATE_IDLE,53 STATE_BUSY,54 STATE_DONE,55 STATE_NACK,56 STATE_ERROR57};58 59struct cec_notifier;60 61struct s5p_cec_dev {62 struct cec_adapter *adap;63 struct clk *clk;64 struct device *dev;65 struct mutex lock;66 struct regmap *pmu;67 struct cec_notifier *notifier;68 int irq;69 void __iomem *reg;70 71 enum cec_state rx;72 enum cec_state tx;73 struct cec_msg msg;74};75 76#endif /* _S5P_CEC_H_ */77