drivers/video/msm/mipi_truly.c - kernel/msm - Git at Google

 /* Copyright (c) 2011-2012, The Linux Foundation. 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 version 2 and
  * only version 2 as published by the Free Software Foundation.
  *
  * 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 "msm_fb.h"
 #include "mipi_dsi.h"
 #include "mipi_truly.h"

 static struct msm_panel_common_pdata *mipi_truly_pdata;
 static struct dsi_buf truly_tx_buf;
 static struct dsi_buf truly_rx_buf;

 #define TRULY_CMD_DELAY		0
 #define TRULY_SLEEP_OFF_DELAY	150
 #define TRULY_DISPLAY_ON_DELAY	150
 #define GPIO_TRULY_LCD_RESET	129

 static int prev_bl = 17;

 static char extend_cmd_enable[4] = {0xB9, 0xFF, 0x83, 0x69};
 static char display_setting[16] = {
 	0xB2, 0x00, 0x23, 0x62,
 	0x62, 0x70, 0x00, 0xFF,
 	0x00, 0x00, 0x00, 0x00,
 	0x03, 0x03, 0x00, 0x01,
 };
 static char wave_cycle_setting[6] = {0xB4, 0x00, 0x1D, 0x5F, 0x0E, 0x06};
 static char gip_setting[27] = {
 	0xD5, 0x00, 0x04, 0x03,
 	0x00, 0x01, 0x05, 0x1C,
 	0x70, 0x01, 0x03, 0x00,
 	0x00, 0x40, 0x06, 0x51,
 	0x07, 0x00, 0x00, 0x41,
 	0x06, 0x50, 0x07, 0x07,
 	0x0F, 0x04, 0x00,
 };
 static char power_setting[20] = {
 	0xB1, 0x01, 0x00, 0x34,
 	0x06, 0x00, 0x0F, 0x0F,
 	0x2A, 0x32, 0x3F, 0x3F,
 	0x07, 0x3A, 0x01, 0xE6,
 	0xE6, 0xE6, 0xE6, 0xE6,
 };
 static char vcom_setting[3] = {0xB6, 0x56, 0x56};
 static char pannel_setting[2] = {0xCC, 0x02};
 static char gamma_setting[35] = {
 	0xE0, 0x00, 0x1D, 0x22,
 	0x38, 0x3D, 0x3F, 0x2E,
 	0x4A, 0x06, 0x0D, 0x0F,
 	0x13, 0x15, 0x13, 0x16,
 	0x10, 0x19, 0x00, 0x1D,
 	0x22, 0x38, 0x3D, 0x3F,
 	0x2E, 0x4A, 0x06, 0x0D,
 	0x0F, 0x13, 0x15, 0x13,
 	0x16, 0x10, 0x19,
 };
 static char mipi_setting[14] = {
 	0xBA, 0x00, 0xA0, 0xC6,
 	0x00, 0x0A, 0x00, 0x10,
 	0x30, 0x6F, 0x02, 0x11,
 	0x18, 0x40,
 };
 static char exit_sleep[2] = {0x11, 0x00};
 static char display_on[2] = {0x29, 0x00};
 static char display_off[2] = {0x28, 0x00};
 static char enter_sleep[2] = {0x10, 0x00};

 static struct dsi_cmd_desc truly_display_off_cmds[] = {
 	{DTYPE_DCS_WRITE, 1, 0, 0, 10, sizeof(display_off), display_off},
 	{DTYPE_DCS_WRITE, 1, 0, 0, 120, sizeof(enter_sleep), enter_sleep}
 };

 static struct dsi_cmd_desc truly_display_on_cmds[] = {
 	{DTYPE_GEN_LWRITE, 1, 0, 0, TRULY_CMD_DELAY,
 			sizeof(extend_cmd_enable), extend_cmd_enable},
 	{DTYPE_GEN_LWRITE, 1, 0, 0, TRULY_CMD_DELAY,
 			sizeof(display_setting), display_setting},
 	{DTYPE_GEN_LWRITE, 1, 0, 0, TRULY_CMD_DELAY,
 			sizeof(wave_cycle_setting), wave_cycle_setting},
 	{DTYPE_GEN_LWRITE, 1, 0, 0, TRULY_CMD_DELAY,
 			sizeof(gip_setting), gip_setting},
 	{DTYPE_GEN_LWRITE, 1, 0, 0, TRULY_CMD_DELAY,
 			sizeof(power_setting), power_setting},
 	{DTYPE_GEN_LWRITE, 1, 0, 0, TRULY_CMD_DELAY,
 			sizeof(vcom_setting), vcom_setting},
 	{DTYPE_GEN_LWRITE, 1, 0, 0, TRULY_CMD_DELAY,
 			sizeof(pannel_setting), pannel_setting},
 	{DTYPE_GEN_LWRITE, 1, 0, 0, TRULY_CMD_DELAY,
 			sizeof(gamma_setting), gamma_setting},
 	{DTYPE_GEN_LWRITE, 1, 0, 0, TRULY_CMD_DELAY,
 			sizeof(mipi_setting), mipi_setting},
 	{DTYPE_DCS_WRITE, 1, 0, 0, TRULY_SLEEP_OFF_DELAY,
 			sizeof(exit_sleep), exit_sleep},
 	{DTYPE_DCS_WRITE, 1, 0, 0, TRULY_DISPLAY_ON_DELAY,
 			sizeof(display_on), display_on},
 };

 static int mipi_truly_lcd_on(struct platform_device *pdev)
 {
 	struct msm_fb_data_type *mfd;
 	struct dcs_cmd_req cmdreq;

 	mfd = platform_get_drvdata(pdev);

 	if (!mfd)
 		return -ENODEV;
 	if (mfd->key != MFD_KEY)
 		return -EINVAL;

 	msleep(20);

 	memset(&cmdreq, 0, sizeof(cmdreq));
 	cmdreq.cmds = truly_display_on_cmds;
 	cmdreq.cmds_cnt = ARRAY_SIZE(truly_display_on_cmds);
 	cmdreq.flags = CMD_REQ_COMMIT;
 	cmdreq.rlen = 0;
 	cmdreq.cb = NULL;
 	mipi_dsi_cmdlist_put(&cmdreq);

 	return 0;
 }

 static int mipi_truly_lcd_off(struct platform_device *pdev)
 {
 	struct msm_fb_data_type *mfd;
 	struct dcs_cmd_req cmdreq;

 	mfd = platform_get_drvdata(pdev);

 	if (!mfd)
 		return -ENODEV;
 	if (mfd->key != MFD_KEY)
 		return -EINVAL;

 	memset(&cmdreq, 0, sizeof(cmdreq));
 	cmdreq.cmds = truly_display_off_cmds;
 	cmdreq.cmds_cnt = ARRAY_SIZE(truly_display_off_cmds);
 	cmdreq.flags = CMD_REQ_COMMIT;
 	cmdreq.rlen = 0;
 	cmdreq.cb = NULL;
 	mipi_dsi_cmdlist_put(&cmdreq);

 	return 0;
 }

 #define BL_LEVEL	17
 static void mipi_truly_set_backlight(struct msm_fb_data_type *mfd)
 {
 	int step = 0, i = 0;
 	int bl_level = mfd->bl_level;

 	/* real backlight level, 1 - max, 16 - min, 17 - off */
 	bl_level = BL_LEVEL - bl_level;

 	if (bl_level > prev_bl) {
 		step = bl_level - prev_bl;
 		if (bl_level == BL_LEVEL)
 			step--;
 	} else if (bl_level < prev_bl) {
 		step = bl_level + 16 - prev_bl;
 	} else {
 		pr_debug("%s: no change\n", __func__);
 		return;
 	}

 	if (bl_level == BL_LEVEL) {
 		/* turn off backlight */
 		mipi_truly_pdata->pmic_backlight(0);
 	} else {
 		if (prev_bl == BL_LEVEL) {
 			/* turn on backlight */
 			mipi_truly_pdata->pmic_backlight(1);
 			udelay(30);
 		}
 		/* adjust backlight level */
 		for (i = 0; i < step; i++) {
 			mipi_truly_pdata->pmic_backlight(0);
 			udelay(1);
 			mipi_truly_pdata->pmic_backlight(1);
 			udelay(1);
 		}
 	}
 	msleep(20);
 	prev_bl = bl_level;

 	return;
 }

 static int __devinit mipi_truly_lcd_probe(struct platform_device *pdev)
 {
 	if (pdev->id == 0) {
 		mipi_truly_pdata = pdev->dev.platform_data;
 		return 0;
 	}

 	msm_fb_add_device(pdev);

 	return 0;
 }

 static struct platform_driver this_driver = {
 	.probe  = mipi_truly_lcd_probe,
 	.driver = {
 		.name   = "mipi_truly",
 	},
 };

 static struct msm_fb_panel_data truly_panel_data = {
 	.on		= mipi_truly_lcd_on,
 	.off		= mipi_truly_lcd_off,
 	.set_backlight	= mipi_truly_set_backlight,
 };

 static int ch_used[3];

 int mipi_truly_device_register(struct msm_panel_info *pinfo,
 					u32 channel, u32 panel)
 {
 	struct platform_device *pdev = NULL;
 	int ret;

 	if ((channel >= 3) || ch_used[channel])
 		return -ENODEV;

 	ch_used[channel] = TRUE;

 	pdev = platform_device_alloc("mipi_truly", (panel << 8)|channel);

 	if (!pdev)
 		return -ENOMEM;

 	truly_panel_data.panel_info = *pinfo;

 	ret = platform_device_add_data(pdev, &truly_panel_data,
 				sizeof(truly_panel_data));
 	if (ret) {
 		pr_err("%s: platform_device_add_data failed!\n", __func__);
 		goto err_device_put;
 	}

 	ret = platform_device_add(pdev);

 	if (ret) {
 		pr_err("%s: platform_device_register failed!\n", __func__);
 		goto err_device_put;
 	}

 	return 0;

 err_device_put:
 	platform_device_put(pdev);
 	return ret;
 }

 static int __init mipi_truly_lcd_init(void)
 {
 	mipi_dsi_buf_alloc(&truly_tx_buf, DSI_BUF_SIZE);
 	mipi_dsi_buf_alloc(&truly_rx_buf, DSI_BUF_SIZE);

 	return platform_driver_register(&this_driver);
 }

 module_init(mipi_truly_lcd_init);
	/* Copyright (c) 2011-2012, The Linux Foundation. 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 version 2 and
	* only version 2 as published by the Free Software Foundation.
	*
	* 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 "msm_fb.h"
	#include "mipi_dsi.h"
	#include "mipi_truly.h"

	static struct msm_panel_common_pdata *mipi_truly_pdata;
	static struct dsi_buf truly_tx_buf;
	static struct dsi_buf truly_rx_buf;

	#define TRULY_CMD_DELAY 0
	#define TRULY_SLEEP_OFF_DELAY 150
	#define TRULY_DISPLAY_ON_DELAY 150
	#define GPIO_TRULY_LCD_RESET 129

	static int prev_bl = 17;

	static char extend_cmd_enable[4] = {0xB9, 0xFF, 0x83, 0x69};
	static char display_setting[16] = {
	0xB2, 0x00, 0x23, 0x62,
	0x62, 0x70, 0x00, 0xFF,
	0x00, 0x00, 0x00, 0x00,
	0x03, 0x03, 0x00, 0x01,
	};
	static char wave_cycle_setting[6] = {0xB4, 0x00, 0x1D, 0x5F, 0x0E, 0x06};
	static char gip_setting[27] = {
	0xD5, 0x00, 0x04, 0x03,
	0x00, 0x01, 0x05, 0x1C,
	0x70, 0x01, 0x03, 0x00,
	0x00, 0x40, 0x06, 0x51,
	0x07, 0x00, 0x00, 0x41,
	0x06, 0x50, 0x07, 0x07,
	0x0F, 0x04, 0x00,
	};
	static char power_setting[20] = {
	0xB1, 0x01, 0x00, 0x34,
	0x06, 0x00, 0x0F, 0x0F,
	0x2A, 0x32, 0x3F, 0x3F,
	0x07, 0x3A, 0x01, 0xE6,
	0xE6, 0xE6, 0xE6, 0xE6,
	};
	static char vcom_setting[3] = {0xB6, 0x56, 0x56};
	static char pannel_setting[2] = {0xCC, 0x02};
	static char gamma_setting[35] = {
	0xE0, 0x00, 0x1D, 0x22,
	0x38, 0x3D, 0x3F, 0x2E,
	0x4A, 0x06, 0x0D, 0x0F,
	0x13, 0x15, 0x13, 0x16,
	0x10, 0x19, 0x00, 0x1D,
	0x22, 0x38, 0x3D, 0x3F,
	0x2E, 0x4A, 0x06, 0x0D,
	0x0F, 0x13, 0x15, 0x13,
	0x16, 0x10, 0x19,
	};
	static char mipi_setting[14] = {
	0xBA, 0x00, 0xA0, 0xC6,
	0x00, 0x0A, 0x00, 0x10,
	0x30, 0x6F, 0x02, 0x11,
	0x18, 0x40,
	};
	static char exit_sleep[2] = {0x11, 0x00};
	static char display_on[2] = {0x29, 0x00};
	static char display_off[2] = {0x28, 0x00};
	static char enter_sleep[2] = {0x10, 0x00};

	static struct dsi_cmd_desc truly_display_off_cmds[] = {
	{DTYPE_DCS_WRITE, 1, 0, 0, 10, sizeof(display_off), display_off},
	{DTYPE_DCS_WRITE, 1, 0, 0, 120, sizeof(enter_sleep), enter_sleep}
	};

	static struct dsi_cmd_desc truly_display_on_cmds[] = {
	{DTYPE_GEN_LWRITE, 1, 0, 0, TRULY_CMD_DELAY,
	sizeof(extend_cmd_enable), extend_cmd_enable},
	{DTYPE_GEN_LWRITE, 1, 0, 0, TRULY_CMD_DELAY,
	sizeof(display_setting), display_setting},
	{DTYPE_GEN_LWRITE, 1, 0, 0, TRULY_CMD_DELAY,
	sizeof(wave_cycle_setting), wave_cycle_setting},
	{DTYPE_GEN_LWRITE, 1, 0, 0, TRULY_CMD_DELAY,
	sizeof(gip_setting), gip_setting},
	{DTYPE_GEN_LWRITE, 1, 0, 0, TRULY_CMD_DELAY,
	sizeof(power_setting), power_setting},
	{DTYPE_GEN_LWRITE, 1, 0, 0, TRULY_CMD_DELAY,
	sizeof(vcom_setting), vcom_setting},
	{DTYPE_GEN_LWRITE, 1, 0, 0, TRULY_CMD_DELAY,
	sizeof(pannel_setting), pannel_setting},
	{DTYPE_GEN_LWRITE, 1, 0, 0, TRULY_CMD_DELAY,
	sizeof(gamma_setting), gamma_setting},
	{DTYPE_GEN_LWRITE, 1, 0, 0, TRULY_CMD_DELAY,
	sizeof(mipi_setting), mipi_setting},
	{DTYPE_DCS_WRITE, 1, 0, 0, TRULY_SLEEP_OFF_DELAY,
	sizeof(exit_sleep), exit_sleep},
	{DTYPE_DCS_WRITE, 1, 0, 0, TRULY_DISPLAY_ON_DELAY,
	sizeof(display_on), display_on},
	};

	static int mipi_truly_lcd_on(struct platform_device *pdev)
	{
	struct msm_fb_data_type *mfd;
	struct dcs_cmd_req cmdreq;

	mfd = platform_get_drvdata(pdev);

	if (!mfd)
	return -ENODEV;
	if (mfd->key != MFD_KEY)
	return -EINVAL;

	msleep(20);

	memset(&cmdreq, 0, sizeof(cmdreq));
	cmdreq.cmds = truly_display_on_cmds;
	cmdreq.cmds_cnt = ARRAY_SIZE(truly_display_on_cmds);
	cmdreq.flags = CMD_REQ_COMMIT;
	cmdreq.rlen = 0;
	cmdreq.cb = NULL;
	mipi_dsi_cmdlist_put(&cmdreq);

	return 0;
	}

	static int mipi_truly_lcd_off(struct platform_device *pdev)
	{
	struct msm_fb_data_type *mfd;
	struct dcs_cmd_req cmdreq;

	mfd = platform_get_drvdata(pdev);

	if (!mfd)
	return -ENODEV;
	if (mfd->key != MFD_KEY)
	return -EINVAL;

	memset(&cmdreq, 0, sizeof(cmdreq));
	cmdreq.cmds = truly_display_off_cmds;
	cmdreq.cmds_cnt = ARRAY_SIZE(truly_display_off_cmds);
	cmdreq.flags = CMD_REQ_COMMIT;
	cmdreq.rlen = 0;
	cmdreq.cb = NULL;
	mipi_dsi_cmdlist_put(&cmdreq);

	return 0;
	}

	#define BL_LEVEL 17
	static void mipi_truly_set_backlight(struct msm_fb_data_type *mfd)
	{
	int step = 0, i = 0;
	int bl_level = mfd->bl_level;

	/* real backlight level, 1 - max, 16 - min, 17 - off */
	bl_level = BL_LEVEL - bl_level;

	if (bl_level > prev_bl) {
	step = bl_level - prev_bl;
	if (bl_level == BL_LEVEL)
	step--;
	} else if (bl_level < prev_bl) {
	step = bl_level + 16 - prev_bl;
	} else {
	pr_debug("%s: no change\n", __func__);
	return;
	}

	if (bl_level == BL_LEVEL) {
	/* turn off backlight */
	mipi_truly_pdata->pmic_backlight(0);
	} else {
	if (prev_bl == BL_LEVEL) {
	/* turn on backlight */
	mipi_truly_pdata->pmic_backlight(1);
	udelay(30);
	}
	/* adjust backlight level */
	for (i = 0; i < step; i++) {
	mipi_truly_pdata->pmic_backlight(0);
	udelay(1);
	mipi_truly_pdata->pmic_backlight(1);
	udelay(1);
	}
	}
	msleep(20);
	prev_bl = bl_level;

	return;
	}

	static int __devinit mipi_truly_lcd_probe(struct platform_device *pdev)
	{
	if (pdev->id == 0) {
	mipi_truly_pdata = pdev->dev.platform_data;
	return 0;
	}

	msm_fb_add_device(pdev);

	return 0;
	}

	static struct platform_driver this_driver = {
	.probe = mipi_truly_lcd_probe,
	.driver = {
	.name = "mipi_truly",
	},
	};

	static struct msm_fb_panel_data truly_panel_data = {
	.on = mipi_truly_lcd_on,
	.off = mipi_truly_lcd_off,
	.set_backlight = mipi_truly_set_backlight,
	};

	static int ch_used[3];

	int mipi_truly_device_register(struct msm_panel_info *pinfo,
	u32 channel, u32 panel)
	{
	struct platform_device *pdev = NULL;
	int ret;

	if ((channel >= 3) \|\| ch_used[channel])
	return -ENODEV;

	ch_used[channel] = TRUE;

	pdev = platform_device_alloc("mipi_truly", (panel << 8)\|channel);

	if (!pdev)
	return -ENOMEM;

	truly_panel_data.panel_info = *pinfo;

	ret = platform_device_add_data(pdev, &truly_panel_data,
	sizeof(truly_panel_data));
	if (ret) {
	pr_err("%s: platform_device_add_data failed!\n", __func__);
	goto err_device_put;
	}

	ret = platform_device_add(pdev);

	if (ret) {
	pr_err("%s: platform_device_register failed!\n", __func__);
	goto err_device_put;
	}

	return 0;

	err_device_put:
	platform_device_put(pdev);
	return ret;
	}

	static int __init mipi_truly_lcd_init(void)
	{
	mipi_dsi_buf_alloc(&truly_tx_buf, DSI_BUF_SIZE);
	mipi_dsi_buf_alloc(&truly_rx_buf, DSI_BUF_SIZE);

	return platform_driver_register(&this_driver);
	}

	module_init(mipi_truly_lcd_init);