LXR linux/drivers/media/cec/platform/s5p/s5p

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/* drivers/media/platform/s5p-cec/s5p_cec.h
   3 *
   4 * Samsung S5P HDMI CEC driver
   5 *
   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                16
  48/* CEC Tx buffer size */
  49#define CEC_TX_BUFF_SIZE                16
  50
  51enum cec_state {
  52        STATE_IDLE,
  53        STATE_BUSY,
  54        STATE_DONE,
  55        STATE_NACK,
  56        STATE_ERROR
  57};
  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