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_ */ 81
