drivers/media/platform/s5p-cec/s5p_cec.h

   1 /* drivers/media/platform/s5p-cec/s5p_cec.h
   2  *
   3  * Samsung S5P HDMI CEC driver
   4  *
   5  * Copyright (c) 2014 Samsung Electronics Co., Ltd.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  */
  12
  13 #ifndef _S5P_CEC_H_
  14 #define _S5P_CEC_H_ __FILE__
  15
  16 #include <linux/clk.h>
  17 #include <linux/interrupt.h>
  18 #include <linux/kernel.h>
  19 #include <linux/mfd/syscon.h>
  20 #include <linux/module.h>
  21 #include <linux/of.h>
  22 #include <linux/platform_device.h>
  23 #include <linux/pm_runtime.h>
  24 #include <linux/timer.h>
  25 #include <linux/workqueue.h>
  26 #include <media/cec.h>
  27
  28 #include "exynos_hdmi_cec.h"
  29 #include "regs-cec.h"
  30 #include "s5p_cec.h"
  31
  32 #define CEC_NAME        "s5p-cec"
  33
  34 #define CEC_STATUS_TX_RUNNING           (1 << 0)
  35 #define CEC_STATUS_TX_TRANSFERRING      (1 << 1)
  36 #define CEC_STATUS_TX_DONE              (1 << 2)
  37 #define CEC_STATUS_TX_ERROR             (1 << 3)
  38 #define CEC_STATUS_TX_NACK              (1 << 4)
  39 #define CEC_STATUS_TX_BYTES             (0xFF << 8)
  40 #define CEC_STATUS_RX_RUNNING           (1 << 16)
  41 #define CEC_STATUS_RX_RECEIVING         (1 << 17)
  42 #define CEC_STATUS_RX_DONE              (1 << 18)
  43 #define CEC_STATUS_RX_ERROR             (1 << 19)
  44 #define CEC_STATUS_RX_BCAST             (1 << 20)
  45 #define CEC_STATUS_RX_BYTES             (0xFF << 24)
  46
  47 #define CEC_WORKER_TX_DONE              (1 << 0)
  48 #define CEC_WORKER_RX_MSG               (1 << 1)
  49
  50 /* CEC Rx buffer size */
  51 #define CEC_RX_BUFF_SIZE                16
  52 /* CEC Tx buffer size */
  53 #define CEC_TX_BUFF_SIZE                16
  54
  55 enum cec_state {
  56         STATE_IDLE,
  57         STATE_BUSY,
  58         STATE_DONE,
  59         STATE_NACK,
  60         STATE_ERROR
  61 };
  62
  63 struct cec_notifier;
  64
  65 struct s5p_cec_dev {
  66         struct cec_adapter      *adap;
  67         struct clk              *clk;
  68         struct device           *dev;
  69         struct mutex            lock;
  70         struct regmap           *pmu;
  71         struct cec_notifier     *notifier;
  72         int                     irq;
  73         void __iomem            *reg;
  74
  75         enum cec_state          rx;
  76         enum cec_state          tx;
  77         struct cec_msg          msg;
  78 };
  79
  80 #endif /* _S5P_CEC_H_ */