/*
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* Allwinner SoCs display driver.
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*
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* Copyright (C) 2016 Allwinner.
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#include "t27p06.h"
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#define t27p06_spi_scl_1 sunxi_lcd_gpio_set_value(0, 2, 1)
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#define t27p06_spi_scl_0 sunxi_lcd_gpio_set_value(0, 2, 0)
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#define t27p06_spi_sdi_1 sunxi_lcd_gpio_set_value(0, 1, 1)
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#define t27p06_spi_sdi_0 sunxi_lcd_gpio_set_value(0, 1, 0)
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#define t27p06_spi_cs_1 sunxi_lcd_gpio_set_value(0, 0, 1)
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#define t27p06_spi_cs_0 sunxi_lcd_gpio_set_value(0, 0, 0)
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static void t27p06_spi_wr(u32 value);
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static void lcd_panel_t27p06_init(void);
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static void LCD_power_on(u32 sel);
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static void LCD_power_off(u32 sel);
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static void LCD_bl_open(u32 sel);
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static void LCD_bl_close(u32 sel);
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static void LCD_panel_init(u32 sel);
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static void LCD_panel_exit(u32 sel);
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static void LCD_cfg_panel_info(struct panel_extend_para *info)
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{
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u32 i = 0, j = 0;
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u32 items;
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u8 lcd_gamma_tbl[][2] = {
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/* {input value, corrected value} */
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{0, 0},
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{15, 15},
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{30, 30},
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{45, 45},
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{60, 60},
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{75, 75},
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{90, 90},
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{105, 105},
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{120, 120},
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{135, 135},
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{150, 150},
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{165, 165},
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{180, 180},
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{195, 195},
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{210, 210},
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{225, 225},
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{240, 240},
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{255, 255},
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};
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u32 lcd_cmap_tbl[2][3][4] = {
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{
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{LCD_CMAP_G0, LCD_CMAP_B1, LCD_CMAP_G2, LCD_CMAP_B3},
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{LCD_CMAP_B0, LCD_CMAP_R1, LCD_CMAP_B2, LCD_CMAP_R3},
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{LCD_CMAP_R0, LCD_CMAP_G1, LCD_CMAP_R2, LCD_CMAP_G3},
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},
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{
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{LCD_CMAP_B3, LCD_CMAP_G2, LCD_CMAP_B1, LCD_CMAP_G0},
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{LCD_CMAP_R3, LCD_CMAP_B2, LCD_CMAP_R1, LCD_CMAP_B0},
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{LCD_CMAP_G3, LCD_CMAP_R2, LCD_CMAP_G1, LCD_CMAP_R0},
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},
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};
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items = sizeof(lcd_gamma_tbl) / 2;
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for (i = 0; i < items - 1; i++) {
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u32 num = lcd_gamma_tbl[i + 1][0] - lcd_gamma_tbl[i][0];
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for (j = 0; j < num; j++) {
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u32 value = 0;
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value =
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lcd_gamma_tbl[i][1] +
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((lcd_gamma_tbl[i + 1][1] -
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lcd_gamma_tbl[i][1]) * j) / num;
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info->lcd_gamma_tbl[lcd_gamma_tbl[i][0] + j] =
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(value << 16) + (value << 8) + value;
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}
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}
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info->lcd_gamma_tbl[255] =
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(lcd_gamma_tbl[items - 1][1] << 16) +
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(lcd_gamma_tbl[items - 1][1] << 8) + lcd_gamma_tbl[items - 1][1];
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memcpy(info->lcd_cmap_tbl, lcd_cmap_tbl, sizeof(lcd_cmap_tbl));
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}
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static s32 LCD_open_flow(u32 sel)
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{
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/* open lcd power, and delay 50ms */
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LCD_OPEN_FUNC(sel, LCD_power_on, 0);
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/* open lcd power, than delay 200ms */
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LCD_OPEN_FUNC(sel, LCD_panel_init, 10);
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/* open lcd controller, and delay 100ms */
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LCD_OPEN_FUNC(sel, sunxi_lcd_tcon_enable, 300);
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/* open lcd backlight, and delay 0ms */
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LCD_OPEN_FUNC(sel, LCD_bl_open, 0);
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return 0;
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}
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static s32 LCD_close_flow(u32 sel)
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{
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/* close lcd backlight, and delay 0ms */
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LCD_CLOSE_FUNC(sel, LCD_bl_close, 300);
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/* close lcd controller, and delay 0ms */
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LCD_CLOSE_FUNC(sel, sunxi_lcd_tcon_disable, 10);
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/* open lcd power, than delay 200ms */
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LCD_CLOSE_FUNC(sel, LCD_panel_exit, 10);
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/* close lcd power, and delay 500ms */
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LCD_CLOSE_FUNC(sel, LCD_power_off, 500);
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return 0;
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}
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static void LCD_power_on(u32 sel)
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{
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/* config lcd_power pin to open lcd power0 */
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sunxi_lcd_power_enable(sel, 0);
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/* pwr_en, active low */
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sunxi_lcd_gpio_set_value(sel, 3, 0);
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sunxi_lcd_pin_cfg(sel, 1);
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}
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static void LCD_power_off(u32 sel)
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{
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sunxi_lcd_pin_cfg(sel, 0);
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/* pwr_en, active low */
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sunxi_lcd_gpio_set_value(sel, 3, 1);
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/* config lcd_power pin to close lcd power0 */
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sunxi_lcd_power_disable(sel, 0);
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}
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static void LCD_bl_open(u32 sel)
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{
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sunxi_lcd_pwm_enable(sel);
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/* config lcd_bl_en pin to open lcd backlight */
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sunxi_lcd_backlight_enable(sel);
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}
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static void LCD_bl_close(u32 sel)
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{
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/* config lcd_bl_en pin to close lcd backlight */
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sunxi_lcd_backlight_disable(sel);
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sunxi_lcd_pwm_disable(sel);
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}
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static void LCD_panel_init(u32 sel)
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{
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struct disp_panel_para *info =
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kmalloc(sizeof(struct disp_panel_para), GFP_KERNEL | __GFP_ZERO);
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bsp_disp_get_panel_info(sel, info);
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lcd_panel_t27p06_init();
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kfree(info);
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}
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static void LCD_panel_exit(u32 sel)
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{
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struct disp_panel_para *info =
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kmalloc(sizeof(struct disp_panel_para), GFP_KERNEL | __GFP_ZERO);
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bsp_disp_get_panel_info(sel, info);
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kfree(info);
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}
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static void t27p06_spi_wr(u32 value)
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{
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u32 i;
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t27p06_spi_cs_1;
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t27p06_spi_sdi_1;
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t27p06_spi_scl_1;
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sunxi_lcd_delay_us(10);
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t27p06_spi_cs_0;
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sunxi_lcd_delay_us(10);
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for (i = 0; i < 16; i++) {
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sunxi_lcd_delay_us(10);
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t27p06_spi_scl_0;
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if (value & 0x8000)
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t27p06_spi_sdi_1;
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else
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t27p06_spi_sdi_0;
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value <<= 1;
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sunxi_lcd_delay_us(10);
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t27p06_spi_scl_1;
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}
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sunxi_lcd_delay_us(10);
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t27p06_spi_sdi_1;
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t27p06_spi_cs_1;
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}
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static void lcd_panel_t27p06_init(void)
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{
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t27p06_spi_wr(0x055f);
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sunxi_lcd_delay_ms(5);
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t27p06_spi_wr(0x051f); /* reset */
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sunxi_lcd_delay_ms(10);
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t27p06_spi_wr(0x055f);
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sunxi_lcd_delay_ms(50);
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t27p06_spi_wr(0x2b01); /* exit standby mode */
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t27p06_spi_wr(0x0009); /* vcomac */
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t27p06_spi_wr(0x019f); /* vcomdc */
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/* t27p06_spi_wr(0x040b);//8-bit rgb interface */
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t27p06_spi_wr(0x040c); /* 8-bit rgb interface */
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t27p06_spi_wr(0x1604); /* default gamma setting 2.2 */
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}
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/* sel: 0:lcd0; 1:lcd1 */
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static s32 LCD_user_defined_func(u32 sel, u32 para1, u32 para2, u32 para3)
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{
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return 0;
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}
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struct __lcd_panel t27p06_panel = {
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/* panel driver name, must mach the lcd_drv_name in sys_config.fex */
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.name = "t27p06",
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.func = {
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.cfg_panel_info = LCD_cfg_panel_info,
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.cfg_open_flow = LCD_open_flow,
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.cfg_close_flow = LCD_close_flow,
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.lcd_user_defined_func = LCD_user_defined_func,
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}
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,
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};
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