ILI980C Driver

ili980c_dsi_vdo_dijing.c

#include <linux/string.h>

#include "lcm_drv.h"

static LCM_UTIL_FUNCS lcm_util = {0};

#define SET_RESET_PIN(v)    (lcm_util.set_reset_pin((v)))

#define UDELAY(n) (lcm_util.udelay(n))
#define MDELAY(n) (lcm_util.mdelay(n))

// Inline functions, don't blame me :3

static __inline unsigned int HIGH_BYTE(unsigned int val)
{
    return (val >> 8) & 0xFF;
}

static __inline unsigned int LOW_BYTE(unsigned int val)
{
    return (val & 0xFF);
}

static __inline void send_ctrl_cmd(unsigned int cmd)
{
    lcm_util.send_cmd((cmd& 0xFF));
}

static __inline void send_data_cmd(unsigned int data)
{
    lcm_util.send_data((data& 0xFF));
}

static __inline unsigned int read_data_cmd()
{
    return lcm_util.read_data();
}

static __inline void set_lcm_register(unsigned int regIndex,
                                      unsigned int regData)
{
    send_ctrl_cmd(regIndex);
    send_data_cmd(regData);
}


static void init_lcm_registers(void)
{
	send_ctrl_cmd(0xFF); // EXTC Command Set enable register 
	send_data_cmd(0xFF); 
	send_data_cmd(0x98); 
	send_data_cmd(0x16); 
	 
	send_ctrl_cmd(0xBA); // SPI Interface Setting 
	send_data_cmd(0x60); 
	 
	send_ctrl_cmd(0XB0); // Interface Mode Control 
	send_data_cmd(0x01); 
	 
	send_ctrl_cmd(0xBC); // GIP 1 
	send_data_cmd(0x03); 
	send_data_cmd(0x0D); 
	send_data_cmd(0x61); 
	send_data_cmd(0xFF); 
	send_data_cmd(0x01); 
	send_data_cmd(0x01); 
	send_data_cmd(0x1B); 
	send_data_cmd(0x11); 
	send_data_cmd(0x38); 
	send_data_cmd(0x63); 
	send_data_cmd(0xFF); 
	send_data_cmd(0xFF); 
	send_data_cmd(0x01); 
	send_data_cmd(0x01); 
	send_data_cmd(0x10);
	send_data_cmd(0x00); 
	send_data_cmd(0xFF); 
	send_data_cmd(0XF2); 
	 
	send_ctrl_cmd(0xBD); // GIP 2 
	send_data_cmd(0x02); 
	send_data_cmd(0x13); 
	send_data_cmd(0x45); 
	send_data_cmd(0x67); 
	send_data_cmd(0x45); 
	send_data_cmd(0x67); 
	send_data_cmd(0x01); 
	send_data_cmd(0x23); 
	 
	send_ctrl_cmd(0xBE); // GIP 3 
	send_data_cmd(0x03); 
	send_data_cmd(0x22); 
	send_data_cmd(0x22); 
	send_data_cmd(0x22); 
	send_data_cmd(0x22); 
	send_data_cmd(0xDD); 
	send_data_cmd(0xCC); 
	send_data_cmd(0xBB); 
	send_data_cmd(0xAA); 
	send_data_cmd(0x66); 
	send_data_cmd(0x77); 
	send_data_cmd(0x22); 
	send_data_cmd(0x22); 
	send_data_cmd(0x22); 
	send_data_cmd(0x22); 
	send_data_cmd(0x22); 
	send_data_cmd(0x22); 
	 
	send_ctrl_cmd(0xED); // en_volt_reg measure VGMP 
	send_data_cmd(0x7F); 
	send_data_cmd(0x0F); 
	 
	send_ctrl_cmd(0xF3);   
	send_data_cmd(0x70); 

	send_ctrl_cmd(0XB4); // Display Inversion Control 
	send_data_cmd(0x02); 
	 
	send_ctrl_cmd(0XC0); // Power Control 1 
	send_data_cmd(0x0F); 
	send_data_cmd(0x0B); 
	send_data_cmd(0x0A); 
	 
	send_ctrl_cmd(0XC1); // Power Control 2 
	send_data_cmd(0x17); 
	send_data_cmd(0x80); 
	send_data_cmd(0x68); 
	send_data_cmd(0x20); 
	 
	send_ctrl_cmd(0XD8); // VGLO Selection 
	send_data_cmd(0x50); 
	 
	send_ctrl_cmd(0XFC); // VGLO Selection 
	send_data_cmd(0x07); 
	 
	send_ctrl_cmd(0XE0); // Positive Gamma Control 
	send_data_cmd(0x00); 
	send_data_cmd(0x04); 
	send_data_cmd(0x0C); 
	send_data_cmd(0x12); 
	send_data_cmd(0x13); 
	send_data_cmd(0x1D); 
	send_data_cmd(0XCA); 
	send_data_cmd(0x09); 
	send_data_cmd(0x04); 
	send_data_cmd(0x0B); 
	send_data_cmd(0x03); 
	send_data_cmd(0x0B); 
	send_data_cmd(0x0E); 
	send_data_cmd(0x2D); 
	send_data_cmd(0x2A); 
	send_data_cmd(0x00);

	send_ctrl_cmd(0XE1); // Negative Gamma Control 
	send_data_cmd(0x00); 
	send_data_cmd(0x01); 
	send_data_cmd(0x04); 
	send_data_cmd(0x0A); 
	send_data_cmd(0x0E); 
	send_data_cmd(0x11); 
	send_data_cmd(0X79); 
	send_data_cmd(0x09); 
	send_data_cmd(0x04); 
	send_data_cmd(0x08); 
	send_data_cmd(0x08); 
	send_data_cmd(0x0B); 
	send_data_cmd(0x09); 
	send_data_cmd(0x34); 
	send_data_cmd(0x2E); 
	send_data_cmd(0x00); 
	 
	send_ctrl_cmd(0XD5); // Source Timing Adjust 
	send_data_cmd(0x0D); 
	send_data_cmd(0x0A); 
	send_data_cmd(0x05); 
	send_data_cmd(0x05); 
	send_data_cmd(0xCB); 
	send_data_cmd(0XA5); 
	send_data_cmd(0x01); 
	send_data_cmd(0x04); 
	 
	send_ctrl_cmd(0XF7); // Resolution 
	send_data_cmd(0x8A); 
	 
	send_ctrl_cmd(0XC7); // Vcom 
	send_data_cmd(0x6F); 

	 send_ctrl_cmd(0X3A); // Vcom 
	send_data_cmd(0x77);
		
	send_ctrl_cmd(0X11);  // Exit Sleep -> Wake up dude
	mdelay(120) ;      
	
	send_ctrl_cmd(0XEE);   
	send_data_cmd(0x0A); 
	send_data_cmd(0x1B); 
	send_data_cmd(0x5F); 
	send_data_cmd(0x40); 
	send_data_cmd(0x00); 
	send_data_cmd(0X00); 
	send_data_cmd(0x10); 
	send_data_cmd(0x00); 
	send_data_cmd(0x58); 
	
	send_ctrl_cmd(0X29);        // Display On finally -_-
	mdelay(20);	
}


static void lcm_set_util_funcs(const LCM_UTIL_FUNCS *util)
{
    memcpy(&lcm_util, util, sizeof(LCM_UTIL_FUNCS));
}


static void lcm_get_params(LCM_PARAMS *params)
{
    memset(params, 0, sizeof(LCM_PARAMS));

    params->type   = LCM_TYPE_DBI;
    params->ctrl   = LCM_CTRL_PARALLEL_DBI;
    params->width  = 480;
    params->height = 800;
    params->io_select_mode = 3;

    params->dbi.port                    = 1;
    params->dbi.clock_freq              = LCM_DBI_CLOCK_FREQ_52M;
    params->dbi.data_width              = LCM_DBI_DATA_WIDTH_16BITS;
    params->dbi.data_format.color_order = LCM_COLOR_ORDER_RGB;
    params->dbi.data_format.trans_seq   = LCM_DBI_TRANS_SEQ_MSB_FIRST;
    params->dbi.data_format.padding     = LCM_DBI_PADDING_ON_LSB;
    params->dbi.data_format.format      = LCM_DBI_FORMAT_RGB565;
    params->dbi.data_format.width       = LCM_DBI_DATA_WIDTH_16BITS;
    params->dbi.cpu_write_bits          = LCM_DBI_CPU_WRITE_16_BITS;
    params->dbi.io_driving_current      = 0;

    params->dbi.parallel.write_setup    = 1;
    params->dbi.parallel.write_hold     = 1;
    params->dbi.parallel.write_wait     = 3;
    params->dbi.parallel.read_setup     = 1;
    params->dbi.parallel.read_latency   = 31;
    params->dbi.parallel.wait_period    = 2;
}


static void lcm_init(void)
{
    SET_RESET_PIN(0);
    MDELAY(200);
    SET_RESET_PIN(1);
    MDELAY(400);

    init_lcm_registers();
}


static void lcm_suspend(void)
{
	send_ctrl_cmd(0x0028);
	MDELAY(20);
	send_ctrl_cmd(0x0010);
	MDELAY(20);
}


static void lcm_resume(void)
{
	send_ctrl_cmd(0x0011);
	MDELAY(20);
	send_ctrl_cmd(0x0029);
	MDELAY(20);
}


static void lcm_update(unsigned int x, unsigned int y,
                       unsigned int width, unsigned int height)
{
    unsigned int x0 = x;
    unsigned int y0 = y;
    unsigned int x1 = x0 + width - 1;
    unsigned int y1 = y0 + height - 1;

	send_ctrl_cmd(0x2A);
	send_data_cmd(HIGH_BYTE(x0));
	send_data_cmd(LOW_BYTE(x0));
	send_data_cmd(HIGH_BYTE(x1));
	send_data_cmd(LOW_BYTE(x1));

	send_ctrl_cmd(0x2B);
	send_data_cmd(HIGH_BYTE(y0));
	send_data_cmd(LOW_BYTE(y0));
	send_data_cmd(HIGH_BYTE(y1));
	send_data_cmd(LOW_BYTE(y1));

	send_ctrl_cmd(0x2C);
}


LCM_DRIVER ili980c_dsi_vdo_dijing_lcm_drv = 
{
	.name		= "ili980c_dsi_vdo_dijing",
	.set_util_funcs = lcm_set_util_funcs,
	.get_params     = lcm_get_params,
	.init           = lcm_init,
	.suspend        = lcm_suspend,
	.resume         = lcm_resume,
	.update         = lcm_update,
};