drivers/amlogic/media/vout/lcd/lcd_extern/i2c_T5800Q.c - manifest_repos/kernel - Git at Google

 /*
  * drivers/amlogic/media/vout/lcd/lcd_extern/i2c_T5800Q.c
  *
  * Copyright (C) 2017 Amlogic, Inc. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  * more details.
  *
  */

 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/i2c.h>
 #include <linux/amlogic/i2c-amlogic.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
 #include <linux/of.h>
 #include <linux/amlogic/media/vout/lcd/lcd_extern.h>
 #include "lcd_extern.h"

 #define LCD_EXTERN_NAME           "i2c_T5800Q"

 #define LCD_EXTERN_I2C_ADDR       (0x1c) /* 7bit address */
 #define LCD_EXTERN_I2C_ADDR2      (0xff) /* 7bit address */
 #define LCD_EXTERN_I2C_BUS        LCD_EXTERN_I2C_BUS_2

 static struct lcd_extern_config_s *ext_config;
 static struct aml_lcd_extern_i2c_dev_s *i2c_dev;

 #define LCD_EXTERN_CMD_SIZE        LCD_EXT_CMD_SIZE_DYNAMIC
 static unsigned char init_on_table[] = {
 	0xc0, 7, 0x20, 0x01, 0x02, 0x00, 0x40, 0xFF, 0x00,
 	0xc0, 7, 0x80, 0x02, 0x00, 0x40, 0x62, 0x51, 0x73,
 	0xc0, 7, 0x61, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00,
 	0xc0, 7, 0xC1, 0x05, 0x0F, 0x00, 0x08, 0x70, 0x00,
 	0xc0, 7, 0x13, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
 	0xc0, 7, 0x3D, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00,
 	0xc0, 7, 0xED, 0x0D, 0x01, 0x00, 0x00, 0x00, 0x00,
 	0xc0, 7, 0x23, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00,
 	0xfd, 1, 10,   /* delay 10ms */
 	0xff, 0,  /* ending */
 };

 static unsigned char init_off_table[] = {
 	0xff, 0,  /* ending */
 };

 static int lcd_extern_power_cmd_dynamic_size(unsigned char *table, int flag)
 {
 	int i = 0, j, step = 0, max_len = 0;
 	unsigned char type, cmd_size;
 	int delay_ms, ret = 0;

 	if (flag)
 		max_len = ext_config->table_init_on_cnt;
 	else
 		max_len = ext_config->table_init_off_cnt;

 	while ((i + 1) < max_len) {
 		type = table[i];
 		if (type == LCD_EXT_CMD_TYPE_END)
 			break;
 		if (lcd_debug_print_flag) {
 			EXTPR("%s: step %d: type=0x%02x, cmd_size=%d\n",
 				__func__, step, type, table[i+1]);
 		}
 		cmd_size = table[i+1];
 		if (cmd_size == 0)
 			goto power_cmd_dynamic_next;
 		if ((i + 2 + cmd_size) > max_len)
 			break;

 		if (type == LCD_EXT_CMD_TYPE_NONE) {
 			/* do nothing */
 		} else if (type == LCD_EXT_CMD_TYPE_GPIO) {
 			if (cmd_size < 2) {
 				EXTERR(
 				"step %d: invalid cmd_size %d for GPIO\n",
 					step, cmd_size);
 				goto power_cmd_dynamic_next;
 			}
 			if (table[i+2] < LCD_GPIO_MAX)
 				lcd_extern_gpio_set(table[i+2], table[i+3]);
 			if (cmd_size > 2) {
 				if (table[i+4] > 0)
 					mdelay(table[i+4]);
 			}
 		} else if (type == LCD_EXT_CMD_TYPE_DELAY) {
 			delay_ms = 0;
 			for (j = 0; j < cmd_size; j++)
 				delay_ms += table[i+2+j];
 			if (delay_ms > 0)
 				mdelay(delay_ms);
 		} else if (type == LCD_EXT_CMD_TYPE_CMD) {
 			if (i2c_dev == NULL) {
 				EXTERR("invalid i2c device\n");
 				return -1;
 			}
 			ret = lcd_extern_i2c_write(i2c_dev->client,
 				&table[i+2], cmd_size);
 		} else if (type == LCD_EXT_CMD_TYPE_CMD_DELAY) {
 			if (i2c_dev == NULL) {
 				EXTERR("invalid i2c device\n");
 				return -1;
 			}
 			ret = lcd_extern_i2c_write(i2c_dev->client,
 				&table[i+2], (cmd_size-1));
 			if (table[i+cmd_size+1] > 0)
 				mdelay(table[i+cmd_size+1]);
 		} else {
 			EXTERR("%s: %s(%d): type 0x%02x invalid\n",
 				__func__, ext_config->name,
 				ext_config->index, type);
 		}
 power_cmd_dynamic_next:
 		i += (cmd_size + 2);
 		step++;
 	}

 	return ret;
 }

 static int lcd_extern_power_cmd_fixed_size(unsigned char *table, int flag)
 {
 	int i = 0, j, step = 0, max_len = 0;
 	unsigned char type, cmd_size;
 	int delay_ms, ret = 0;

 	cmd_size = ext_config->cmd_size;
 	if (cmd_size < 2) {
 		EXTERR("%s: invalid cmd_size %d\n", __func__, cmd_size);
 		return -1;
 	}

 	if (flag)
 		max_len = ext_config->table_init_on_cnt;
 	else
 		max_len = ext_config->table_init_off_cnt;

 	while ((i + cmd_size) <= max_len) {
 		type = table[i];
 		if (type == LCD_EXT_CMD_TYPE_END)
 			break;
 		if (lcd_debug_print_flag) {
 			EXTPR("%s: step %d: type=0x%02x, cmd_size=%d\n",
 				__func__, step, type, cmd_size);
 		}
 		if (type == LCD_EXT_CMD_TYPE_NONE) {
 			/* do nothing */
 		} else if (type == LCD_EXT_CMD_TYPE_GPIO) {
 			if (table[i+1] < LCD_GPIO_MAX)
 				lcd_extern_gpio_set(table[i+1], table[i+2]);
 			if (cmd_size > 3) {
 				if (table[i+3] > 0)
 					mdelay(table[i+3]);
 			}
 		} else if (type == LCD_EXT_CMD_TYPE_DELAY) {
 			delay_ms = 0;
 			for (j = 0; j < (cmd_size - 1); j++)
 				delay_ms += table[i+1+j];
 			if (delay_ms > 0)
 				mdelay(delay_ms);
 		} else if (type == LCD_EXT_CMD_TYPE_CMD) {
 			if (i2c_dev == NULL) {
 				EXTERR("invalid i2c device\n");
 				return -1;
 			}
 			ret = lcd_extern_i2c_write(i2c_dev->client,
 				&table[i+1], (cmd_size-1));
 		} else if (type == LCD_EXT_CMD_TYPE_CMD_DELAY) {
 			if (i2c_dev == NULL) {
 				EXTERR("invalid i2c device\n");
 				return -1;
 			}
 			ret = lcd_extern_i2c_write(i2c_dev->client,
 				&table[i+1], (cmd_size-2));
 			if (table[i+cmd_size-1] > 0)
 				mdelay(table[i+cmd_size-1]);
 		} else {
 			EXTERR("%s: %s(%d): type 0x%02x invalid\n",
 				__func__, ext_config->name,
 				ext_config->index, type);
 		}
 		i += cmd_size;
 		step++;
 	}

 	return ret;
 }

 static int lcd_extern_power_ctrl(int flag)
 {
 	unsigned char *table;
 	unsigned char cmd_size;
 	int ret = 0;

 	cmd_size = ext_config->cmd_size;
 	if (flag)
 		table = ext_config->table_init_on;
 	else
 		table = ext_config->table_init_off;
 	if (cmd_size < 1) {
 		EXTERR("%s: cmd_size %d is invalid\n", __func__, cmd_size);
 		return -1;
 	}
 	if (table == NULL) {
 		EXTERR("%s: init_table %d is NULL\n", __func__, flag);
 		return -1;
 	}

 	if (cmd_size == LCD_EXT_CMD_SIZE_DYNAMIC)
 		ret = lcd_extern_power_cmd_dynamic_size(table, flag);
 	else
 		ret = lcd_extern_power_cmd_fixed_size(table, flag);

 	EXTPR("%s: %s(%d): %d\n",
 		__func__, ext_config->name, ext_config->index, flag);
 	return ret;
 }

 static int lcd_extern_power_on(void)
 {
 	int ret;

 	lcd_extern_pinmux_set(1);
 	ret = lcd_extern_power_ctrl(1);
 	return ret;
 }

 static int lcd_extern_power_off(void)
 {
 	int ret;

 	ret = lcd_extern_power_ctrl(0);
 	lcd_extern_pinmux_set(0);
 	return ret;
 }

 static int lcd_extern_driver_update(struct aml_lcd_extern_driver_s *ext_drv)
 {
 	if (ext_drv == NULL) {
 		EXTERR("%s driver is null\n", LCD_EXTERN_NAME);
 		return -1;
 	}

 	if (ext_drv->config->table_init_loaded == 0) {
 		ext_drv->config->cmd_size = LCD_EXTERN_CMD_SIZE;
 		ext_drv->config->table_init_on = init_on_table;
 		ext_drv->config->table_init_on_cnt  = sizeof(init_on_table);
 		ext_drv->config->table_init_off = init_off_table;
 		ext_drv->config->table_init_off_cnt  = sizeof(init_off_table);
 	}
 	ext_drv->power_on  = lcd_extern_power_on;
 	ext_drv->power_off = lcd_extern_power_off;

 	return 0;
 }

 int aml_lcd_extern_i2c_T5800Q_probe(struct aml_lcd_extern_driver_s *ext_drv)
 {
 	int ret = 0;

 	ext_config = ext_drv->config;

 	i2c_dev = lcd_extern_get_i2c_device(ext_config->i2c_addr);
 	if (i2c_dev == NULL) {
 		EXTERR("invalid i2c device\n");
 		return -1;
 	}
 	EXTPR("get i2c device: %s, addr 0x%02x OK\n",
 		i2c_dev->name, i2c_dev->client->addr);

 	ret = lcd_extern_driver_update(ext_drv);
 	EXTPR("%s: %d\n", __func__, ret);
 	return ret;
 }

 int aml_lcd_extern_i2c_T5800Q_remove(void)
 {
 	i2c_dev = NULL;
 	ext_config = NULL;

 	return 0;
 }
	/*
	* drivers/amlogic/media/vout/lcd/lcd_extern/i2c_T5800Q.c
	*
	* Copyright (C) 2017 Amlogic, Inc. All rights reserved.
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; either version 2 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	* more details.
	*
	*/

	#include <linux/kernel.h>
	#include <linux/module.h>
	#include <linux/interrupt.h>
	#include <linux/platform_device.h>
	#include <linux/i2c.h>
	#include <linux/amlogic/i2c-amlogic.h>
	#include <linux/clk.h>
	#include <linux/delay.h>
	#include <linux/slab.h>
	#include <linux/of.h>
	#include <linux/amlogic/media/vout/lcd/lcd_extern.h>
	#include "lcd_extern.h"

	#define LCD_EXTERN_NAME "i2c_T5800Q"

	#define LCD_EXTERN_I2C_ADDR (0x1c) /* 7bit address */
	#define LCD_EXTERN_I2C_ADDR2 (0xff) /* 7bit address */
	#define LCD_EXTERN_I2C_BUS LCD_EXTERN_I2C_BUS_2

	static struct lcd_extern_config_s *ext_config;
	static struct aml_lcd_extern_i2c_dev_s *i2c_dev;

	#define LCD_EXTERN_CMD_SIZE LCD_EXT_CMD_SIZE_DYNAMIC
	static unsigned char init_on_table[] = {
	0xc0, 7, 0x20, 0x01, 0x02, 0x00, 0x40, 0xFF, 0x00,
	0xc0, 7, 0x80, 0x02, 0x00, 0x40, 0x62, 0x51, 0x73,
	0xc0, 7, 0x61, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00,
	0xc0, 7, 0xC1, 0x05, 0x0F, 0x00, 0x08, 0x70, 0x00,
	0xc0, 7, 0x13, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
	0xc0, 7, 0x3D, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00,
	0xc0, 7, 0xED, 0x0D, 0x01, 0x00, 0x00, 0x00, 0x00,
	0xc0, 7, 0x23, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00,
	0xfd, 1, 10, /* delay 10ms */
	0xff, 0, /* ending */
	};

	static unsigned char init_off_table[] = {
	0xff, 0, /* ending */
	};

	static int lcd_extern_power_cmd_dynamic_size(unsigned char *table, int flag)
	{
	int i = 0, j, step = 0, max_len = 0;
	unsigned char type, cmd_size;
	int delay_ms, ret = 0;

	if (flag)
	max_len = ext_config->table_init_on_cnt;
	else
	max_len = ext_config->table_init_off_cnt;

	while ((i + 1) < max_len) {
	type = table[i];
	if (type == LCD_EXT_CMD_TYPE_END)
	break;
	if (lcd_debug_print_flag) {
	EXTPR("%s: step %d: type=0x%02x, cmd_size=%d\n",
	__func__, step, type, table[i+1]);
	}
	cmd_size = table[i+1];
	if (cmd_size == 0)
	goto power_cmd_dynamic_next;
	if ((i + 2 + cmd_size) > max_len)
	break;

	if (type == LCD_EXT_CMD_TYPE_NONE) {
	/* do nothing */
	} else if (type == LCD_EXT_CMD_TYPE_GPIO) {
	if (cmd_size < 2) {
	EXTERR(
	"step %d: invalid cmd_size %d for GPIO\n",
	step, cmd_size);
	goto power_cmd_dynamic_next;
	}
	if (table[i+2] < LCD_GPIO_MAX)
	lcd_extern_gpio_set(table[i+2], table[i+3]);
	if (cmd_size > 2) {
	if (table[i+4] > 0)
	mdelay(table[i+4]);
	}
	} else if (type == LCD_EXT_CMD_TYPE_DELAY) {
	delay_ms = 0;
	for (j = 0; j < cmd_size; j++)
	delay_ms += table[i+2+j];
	if (delay_ms > 0)
	mdelay(delay_ms);
	} else if (type == LCD_EXT_CMD_TYPE_CMD) {
	if (i2c_dev == NULL) {
	EXTERR("invalid i2c device\n");
	return -1;
	}
	ret = lcd_extern_i2c_write(i2c_dev->client,
	&table[i+2], cmd_size);
	} else if (type == LCD_EXT_CMD_TYPE_CMD_DELAY) {
	if (i2c_dev == NULL) {
	EXTERR("invalid i2c device\n");
	return -1;
	}
	ret = lcd_extern_i2c_write(i2c_dev->client,
	&table[i+2], (cmd_size-1));
	if (table[i+cmd_size+1] > 0)
	mdelay(table[i+cmd_size+1]);
	} else {
	EXTERR("%s: %s(%d): type 0x%02x invalid\n",
	__func__, ext_config->name,
	ext_config->index, type);
	}
	power_cmd_dynamic_next:
	i += (cmd_size + 2);
	step++;
	}

	return ret;
	}

	static int lcd_extern_power_cmd_fixed_size(unsigned char *table, int flag)
	{
	int i = 0, j, step = 0, max_len = 0;
	unsigned char type, cmd_size;
	int delay_ms, ret = 0;

	cmd_size = ext_config->cmd_size;
	if (cmd_size < 2) {
	EXTERR("%s: invalid cmd_size %d\n", __func__, cmd_size);
	return -1;
	}

	if (flag)
	max_len = ext_config->table_init_on_cnt;
	else
	max_len = ext_config->table_init_off_cnt;

	while ((i + cmd_size) <= max_len) {
	type = table[i];
	if (type == LCD_EXT_CMD_TYPE_END)
	break;
	if (lcd_debug_print_flag) {
	EXTPR("%s: step %d: type=0x%02x, cmd_size=%d\n",
	__func__, step, type, cmd_size);
	}
	if (type == LCD_EXT_CMD_TYPE_NONE) {
	/* do nothing */
	} else if (type == LCD_EXT_CMD_TYPE_GPIO) {
	if (table[i+1] < LCD_GPIO_MAX)
	lcd_extern_gpio_set(table[i+1], table[i+2]);
	if (cmd_size > 3) {
	if (table[i+3] > 0)
	mdelay(table[i+3]);
	}
	} else if (type == LCD_EXT_CMD_TYPE_DELAY) {
	delay_ms = 0;
	for (j = 0; j < (cmd_size - 1); j++)
	delay_ms += table[i+1+j];
	if (delay_ms > 0)
	mdelay(delay_ms);
	} else if (type == LCD_EXT_CMD_TYPE_CMD) {
	if (i2c_dev == NULL) {
	EXTERR("invalid i2c device\n");
	return -1;
	}
	ret = lcd_extern_i2c_write(i2c_dev->client,
	&table[i+1], (cmd_size-1));
	} else if (type == LCD_EXT_CMD_TYPE_CMD_DELAY) {
	if (i2c_dev == NULL) {
	EXTERR("invalid i2c device\n");
	return -1;
	}
	ret = lcd_extern_i2c_write(i2c_dev->client,
	&table[i+1], (cmd_size-2));
	if (table[i+cmd_size-1] > 0)
	mdelay(table[i+cmd_size-1]);
	} else {
	EXTERR("%s: %s(%d): type 0x%02x invalid\n",
	__func__, ext_config->name,
	ext_config->index, type);
	}
	i += cmd_size;
	step++;
	}

	return ret;
	}

	static int lcd_extern_power_ctrl(int flag)
	{
	unsigned char *table;
	unsigned char cmd_size;
	int ret = 0;

	cmd_size = ext_config->cmd_size;
	if (flag)
	table = ext_config->table_init_on;
	else
	table = ext_config->table_init_off;
	if (cmd_size < 1) {
	EXTERR("%s: cmd_size %d is invalid\n", __func__, cmd_size);
	return -1;
	}
	if (table == NULL) {
	EXTERR("%s: init_table %d is NULL\n", __func__, flag);
	return -1;
	}

	if (cmd_size == LCD_EXT_CMD_SIZE_DYNAMIC)
	ret = lcd_extern_power_cmd_dynamic_size(table, flag);
	else
	ret = lcd_extern_power_cmd_fixed_size(table, flag);

	EXTPR("%s: %s(%d): %d\n",
	__func__, ext_config->name, ext_config->index, flag);
	return ret;
	}

	static int lcd_extern_power_on(void)
	{
	int ret;

	lcd_extern_pinmux_set(1);
	ret = lcd_extern_power_ctrl(1);
	return ret;
	}

	static int lcd_extern_power_off(void)
	{
	int ret;

	ret = lcd_extern_power_ctrl(0);
	lcd_extern_pinmux_set(0);
	return ret;
	}

	static int lcd_extern_driver_update(struct aml_lcd_extern_driver_s *ext_drv)
	{
	if (ext_drv == NULL) {
	EXTERR("%s driver is null\n", LCD_EXTERN_NAME);
	return -1;
	}

	if (ext_drv->config->table_init_loaded == 0) {
	ext_drv->config->cmd_size = LCD_EXTERN_CMD_SIZE;
	ext_drv->config->table_init_on = init_on_table;
	ext_drv->config->table_init_on_cnt = sizeof(init_on_table);
	ext_drv->config->table_init_off = init_off_table;
	ext_drv->config->table_init_off_cnt = sizeof(init_off_table);
	}
	ext_drv->power_on = lcd_extern_power_on;
	ext_drv->power_off = lcd_extern_power_off;

	return 0;
	}

	int aml_lcd_extern_i2c_T5800Q_probe(struct aml_lcd_extern_driver_s *ext_drv)
	{
	int ret = 0;

	ext_config = ext_drv->config;

	i2c_dev = lcd_extern_get_i2c_device(ext_config->i2c_addr);
	if (i2c_dev == NULL) {
	EXTERR("invalid i2c device\n");
	return -1;
	}
	EXTPR("get i2c device: %s, addr 0x%02x OK\n",
	i2c_dev->name, i2c_dev->client->addr);

	ret = lcd_extern_driver_update(ext_drv);
	EXTPR("%s: %d\n", __func__, ret);
	return ret;
	}

	int aml_lcd_extern_i2c_T5800Q_remove(void)
	{
	i2c_dev = NULL;
	ext_config = NULL;

	return 0;
	}