drivers/dvb_ci/aml_ci_bus.h

/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
/*
 * Copyright (c) 2019 Amlogic, Inc. All rights reserved.
 */

#ifndef __AML_CI_BUS_H_
#define __AML_CI_BUS_H_

#include <linux/amlogic/iomap.h>
#include <linux/amlogic/aml_gpio_consumer.h>
#include <linux/gpio/consumer.h>
#include "aml_pcmcia.h"
#include "aml_ci.h"
#include "dvb_ca_en50221.h"

/* aml spi dev */
struct aml_ci_bus {
	struct mutex mutex; /* mutex */
	struct class	cls;
	struct gpio_desc *cd_pin1; /* add gpio pin */
	int cd_pin1_value;
	struct gpio_desc *cd_pin2;
	int cd_pin2_value;
	struct gpio_desc *pwr_pin;
	int pwr_pin_value;
	struct gpio_desc *le_pin;
	int le_pin_value;
	int le_enable_level;
	int addr_ts_mode_multiplex;
	/* cam irq */
	int irq;
	int irq_cmp;
	int irq_timeout;
	struct aml_pcmcia pc;
	void *priv;
	/*device type*/
	int io_device_type;
	/*select gpio group*/
	int select;
	struct pinctrl *pinctrl;
	struct pinctrl *bus_pinctrl;
	struct platform_device *pdev;
	/*save cam cur state*/
	enum aml_slot_state		slot_state;
	/*wake up thread mode at cimcu thread*/
	int wakeup_thread;
	/*for raw mode used*/
	int used;
	int raw_mode;
};

enum aml_gpio_select_e {
		AML_GPIO_ADDR = 0,
		AML_GPIO_TS,
};

#define IORD            0x0
#define IOWR            0x1
#define MEMRD           0x2
#define MEMWR           0x3

//24M cyccles, 42 ns
#define CYCLES                    (42)
//mem rd
#define DELAY_RMEM_INIT_ADDR      (0)
#define DELAY_RMEM_ADDR_CE        (0)
#define DELAY_RMEM_CE_RD          (3)
#define DELAY_RMEM_RD_RWAIT       (0)
#define DELAY_RMEM_RWAIT_DATA     (0)
#define DELAY_RMEM_DATA_DRD       (0)
#define DELAY_RMEM_DRD_DCE        (0)
#define DELAY_RMEM_DCE_INIT       (0)
//mem wr
#define DELAY_WMEM_INIT_ADDR      (0)
#define DELAY_WMEM_ADDR_CE        (1)
#define DELAY_WMEM_CE_WR          (1)
#define DELAY_WMEM_WR_RWAIT       (0)
#define DELAY_WMEM_RWAIT_DATA     (0)
#define DELAY_WMEM_DATA_DWR       (0)
#define DELAY_WMEM_DWR_DCE        (1)
#define DELAY_WMEM_DCE_INIT       (1)
//iord
#define DELAY_RIO_INIT_ADDR       (0)
#define DELAY_RIO_ADDR_CE         (0)
#define DELAY_RIO_CE_RD           (2)
#define DELAY_RIO_RD_RWAIT        (0)
#define DELAY_RIO_RWAIT_DATA      (0)
#define DELAY_RIO_DATA_DRD        (0)
#define DELAY_RIO_DRD_DCE         (0)
#define DELAY_RIO_DCE_INIT        (0)
//iowr
#define DELAY_WIO_INIT_ADDR       (0)
#define DELAY_WIO_ADDR_CE         (1)
#define DELAY_WIO_CE_WR           (1)
#define DELAY_WIO_WR_RWAIT        (0)
#define DELAY_WIO_RWAIT_DATA      (0)
#define DELAY_WIO_DATA_DWR        (0)
#define DELAY_WIO_DWR_DCE         (1)
#define DELAY_WIO_DCE_INIT        (1)

//timeout irq hold time,10MS
#define TIMEOUT_IRQ_HOLD_TIME    (200)

//reg define
#define CIPLUS_CMD_REG 0x0
/*
 * 31:24  rw, wdata:the data write in cam
 * 23     reserved
 * 22:8   addr A0-A14
 * 7:6    reserved
 * 5:4    cmd type:00: iord,01:iowr 10: oe 11:we
 * 3:1    reserved
 * 0      cmd valid,1:cmd is valid.need be executed.
 * 0:     cmd is invalid
 */
#define CI_CMD_WDATA 24
#define CI_CMD_ADDR  8
#define CI_CMD_TYPE  4
#define CI_CMD_VALID 0

#define CIPLUS_RDATA_REG 0x4
/*
 *31:8   reserved
 *7:0    data read from cam
 */
#define CIPLUS_CTRL_REG 0x8
/*
 *31:21   reserved
 *10      ctrl clk 1:disable clk gated;
 *				0:enable clk gated
 *9       completion irq en,1: disable;0:able
 *8       inv_cam_iowrn
 *7       inv_cam_iordn
 *6       inv_cam_wen
 *5       inv_cam_oen
 *4       inv_cam_cen
 *3       clear transfer complete irq;1:clear
 *2       clear timeout ieq, 1:clear
 *1       cam reset: =1 assert =0 deassert
 *0       control enable: 1:enable ciplus ctrl,0:disable
 */
#define ENABLE_CMP_IRQ  9
#define INV_CAM_IOWR    8
#define INV_CAM_IORD    7
#define INV_CAM_WE      6
#define INV_CAM_OE      5
#define INV_CAM_CE      4
#define CLEAR_CMP_IRQ   3
#define CLEAR_TIMEOUT_IRQ 2
#define CAM_RESET         1
#define CI_ENABLE         0

#define CIPLUS_DELAY_CTRL0 0xc
/*
 * 31:24   0xf,delay cycles between assert IORD/IOWR/MEMRD/MEMWR
 *	and WAIT# RELEASED
 * 23:16   0xf,delay cycles between assert CE and  assert IORD/IOWR/MEMRD/MEMWR
 * 15:8    0x8,delay cycles between send addr and assert CE
 * 7:0     0x4,delay cycles between INIT and send ADDR/DATA
 */
#define CIPLUS_DELAY_CTRL1 0x10
/*
 * 31:24   0xf,delay cycles between DEassert CE and IDLE
 * 23:16   0xf,delay cycles between DEassert IORD/IOWR/MEMRD/MEMWR and deassert CE
 * 15:8    0x8,delay cycles between SAMPLE DATA and DEassert IORD/IOWR/MEMRD/MEMWR
 * 7:0     0xF,delay cycles between WAIT# RELEASE and (SAMPLEDATA OR DEASSERT IORD
 *	   IOWR/MEMRD/MEMWR)
 */
#define CIPLUS_WAIT_TIMEOUT 0x14
/*
 *	1     wait timeout irq enable,default 1;
 *	30:0   data read from cam;time out threshold
 *	if wait time > threshold,than timeout irq.
 */
#define ENABLE_TIMEOUT_IRQ  31
#define WATT_TIMEOUT_TIME   0

#define CIPLUS_STATUS_REG 0x18
/*
 *	31:6   reserved
 *	5:2    fsm state
 *	1	   timeout irq
 *	0      complete irq
 */
#define TIMEOUT_IRQ_STATE    1
#define COMPLETE_IRQ_STATE   0

void dvb_ca_en50221_camready_irq(struct dvb_ca_en50221 *pubca, int slot);
int aml_ci_bus_init(struct platform_device *pdev, struct aml_ci *ci_dev);
int aml_ci_bus_exit(struct aml_ci *ci);
int aml_ci_bus_mod_init(void);
void aml_ci_bus_mod_exit(void);
#endif				/* __AML_CI_BUS_H_ */