1 /*
2 * Allwinner SoCs display driver.
3 *
4 * Copyright (C) 2016 Allwinner.
5 *
6 * This file is licensed under the terms of the GNU General Public
7 * License version 2. This program is licensed "as is" without any
8 * warranty of any kind, whether express or implied.
9 */
10
11 #include "t27p06.h"
12
13 #define t27p06_spi_scl_1 sunxi_lcd_gpio_set_value(0, 2, 1)
14 #define t27p06_spi_scl_0 sunxi_lcd_gpio_set_value(0, 2, 0)
15 #define t27p06_spi_sdi_1 sunxi_lcd_gpio_set_value(0, 1, 1)
16 #define t27p06_spi_sdi_0 sunxi_lcd_gpio_set_value(0, 1, 0)
17 #define t27p06_spi_cs_1 sunxi_lcd_gpio_set_value(0, 0, 1)
18 #define t27p06_spi_cs_0 sunxi_lcd_gpio_set_value(0, 0, 0)
19
20 static void t27p06_spi_wr(u32 value);
21 static void lcd_panel_t27p06_init(void);
22 static void LCD_power_on(u32 sel);
23 static void LCD_power_off(u32 sel);
24 static void LCD_bl_open(u32 sel);
25 static void LCD_bl_close(u32 sel);
26
27 static void LCD_panel_init(u32 sel);
28 static void LCD_panel_exit(u32 sel);
29
LCD_cfg_panel_info(struct panel_extend_para * info)30 static void LCD_cfg_panel_info(struct panel_extend_para *info)
31 {
32 u32 i = 0, j = 0;
33 u32 items;
34 u8 lcd_gamma_tbl[][2] = {
35 /* {input value, corrected value} */
36 {0, 0},
37 {15, 15},
38 {30, 30},
39 {45, 45},
40 {60, 60},
41 {75, 75},
42 {90, 90},
43 {105, 105},
44 {120, 120},
45 {135, 135},
46 {150, 150},
47 {165, 165},
48 {180, 180},
49 {195, 195},
50 {210, 210},
51 {225, 225},
52 {240, 240},
53 {255, 255},
54 };
55
56 u32 lcd_cmap_tbl[2][3][4] = {
57 {
58 {LCD_CMAP_G0, LCD_CMAP_B1, LCD_CMAP_G2, LCD_CMAP_B3},
59 {LCD_CMAP_B0, LCD_CMAP_R1, LCD_CMAP_B2, LCD_CMAP_R3},
60 {LCD_CMAP_R0, LCD_CMAP_G1, LCD_CMAP_R2, LCD_CMAP_G3},
61 },
62 {
63 {LCD_CMAP_B3, LCD_CMAP_G2, LCD_CMAP_B1, LCD_CMAP_G0},
64 {LCD_CMAP_R3, LCD_CMAP_B2, LCD_CMAP_R1, LCD_CMAP_B0},
65 {LCD_CMAP_G3, LCD_CMAP_R2, LCD_CMAP_G1, LCD_CMAP_R0},
66 },
67 };
68
69 items = sizeof(lcd_gamma_tbl) / 2;
70 for (i = 0; i < items - 1; i++) {
71 u32 num = lcd_gamma_tbl[i + 1][0] - lcd_gamma_tbl[i][0];
72
73 for (j = 0; j < num; j++) {
74 u32 value = 0;
75
76 value =
77 lcd_gamma_tbl[i][1] +
78 ((lcd_gamma_tbl[i + 1][1] -
79 lcd_gamma_tbl[i][1]) * j) / num;
80 info->lcd_gamma_tbl[lcd_gamma_tbl[i][0] + j] =
81 (value << 16) + (value << 8) + value;
82 }
83 }
84 info->lcd_gamma_tbl[255] =
85 (lcd_gamma_tbl[items - 1][1] << 16) +
86 (lcd_gamma_tbl[items - 1][1] << 8) + lcd_gamma_tbl[items - 1][1];
87
88 memcpy(info->lcd_cmap_tbl, lcd_cmap_tbl, sizeof(lcd_cmap_tbl));
89
90 }
91
LCD_open_flow(u32 sel)92 static s32 LCD_open_flow(u32 sel)
93 {
94 /* open lcd power, and delay 50ms */
95 LCD_OPEN_FUNC(sel, LCD_power_on, 0);
96 /* open lcd power, than delay 200ms */
97 LCD_OPEN_FUNC(sel, LCD_panel_init, 10);
98 /* open lcd controller, and delay 100ms */
99 LCD_OPEN_FUNC(sel, sunxi_lcd_tcon_enable, 300);
100 /* open lcd backlight, and delay 0ms */
101 LCD_OPEN_FUNC(sel, LCD_bl_open, 0);
102
103 return 0;
104 }
105
LCD_close_flow(u32 sel)106 static s32 LCD_close_flow(u32 sel)
107 {
108 /* close lcd backlight, and delay 0ms */
109 LCD_CLOSE_FUNC(sel, LCD_bl_close, 300);
110 /* close lcd controller, and delay 0ms */
111 LCD_CLOSE_FUNC(sel, sunxi_lcd_tcon_disable, 10);
112 /* open lcd power, than delay 200ms */
113 LCD_CLOSE_FUNC(sel, LCD_panel_exit, 10);
114 /* close lcd power, and delay 500ms */
115 LCD_CLOSE_FUNC(sel, LCD_power_off, 500);
116
117 return 0;
118 }
119
LCD_power_on(u32 sel)120 static void LCD_power_on(u32 sel)
121 {
122 /* config lcd_power pin to open lcd power0 */
123 sunxi_lcd_power_enable(sel, 0);
124 /* pwr_en, active low */
125 sunxi_lcd_gpio_set_value(sel, 3, 0);
126 sunxi_lcd_pin_cfg(sel, 1);
127 }
128
LCD_power_off(u32 sel)129 static void LCD_power_off(u32 sel)
130 {
131 sunxi_lcd_pin_cfg(sel, 0);
132 /* pwr_en, active low */
133 sunxi_lcd_gpio_set_value(sel, 3, 1);
134 /* config lcd_power pin to close lcd power0 */
135 sunxi_lcd_power_disable(sel, 0);
136 }
137
LCD_bl_open(u32 sel)138 static void LCD_bl_open(u32 sel)
139 {
140 sunxi_lcd_pwm_enable(sel);
141 /* config lcd_bl_en pin to open lcd backlight */
142 sunxi_lcd_backlight_enable(sel);
143 }
144
LCD_bl_close(u32 sel)145 static void LCD_bl_close(u32 sel)
146 {
147 /* config lcd_bl_en pin to close lcd backlight */
148 sunxi_lcd_backlight_disable(sel);
149 sunxi_lcd_pwm_disable(sel);
150 }
151
LCD_panel_init(u32 sel)152 static void LCD_panel_init(u32 sel)
153 {
154 struct disp_panel_para *info =
155 kmalloc(sizeof(struct disp_panel_para), GFP_KERNEL | __GFP_ZERO);
156
157 bsp_disp_get_panel_info(sel, info);
158 lcd_panel_t27p06_init();
159 disp_sys_free(info);
160 }
161
LCD_panel_exit(u32 sel)162 static void LCD_panel_exit(u32 sel)
163 {
164 struct disp_panel_para *info =
165 kmalloc(sizeof(struct disp_panel_para), GFP_KERNEL | __GFP_ZERO);
166
167 bsp_disp_get_panel_info(sel, info);
168 disp_sys_free(info);
169 }
170
t27p06_spi_wr(u32 value)171 static void t27p06_spi_wr(u32 value)
172 {
173 u32 i;
174
175 t27p06_spi_cs_1;
176 t27p06_spi_sdi_1;
177 t27p06_spi_scl_1;
178 sunxi_lcd_delay_us(10);
179 t27p06_spi_cs_0;
180 sunxi_lcd_delay_us(10);
181 for (i = 0; i < 16; i++) {
182 sunxi_lcd_delay_us(10);
183 t27p06_spi_scl_0;
184 if (value & 0x8000)
185 t27p06_spi_sdi_1;
186 else
187 t27p06_spi_sdi_0;
188 value <<= 1;
189 sunxi_lcd_delay_us(10);
190 t27p06_spi_scl_1;
191 }
192 sunxi_lcd_delay_us(10);
193 t27p06_spi_sdi_1;
194 t27p06_spi_cs_1;
195 }
lcd_panel_t27p06_init(void)196 static void lcd_panel_t27p06_init(void)
197 {
198 t27p06_spi_wr(0x055f);
199 sunxi_lcd_delay_ms(5);
200 t27p06_spi_wr(0x051f); /* reset */
201 sunxi_lcd_delay_ms(10);
202 t27p06_spi_wr(0x055f);
203 sunxi_lcd_delay_ms(50);
204 t27p06_spi_wr(0x2b01); /* exit standby mode */
205 t27p06_spi_wr(0x0009); /* vcomac */
206 t27p06_spi_wr(0x019f); /* vcomdc */
207 /* t27p06_spi_wr(0x040b);//8-bit rgb interface */
208 t27p06_spi_wr(0x040c); /* 8-bit rgb interface */
209 t27p06_spi_wr(0x1604); /* default gamma setting 2.2 */
210 }
211
212 /* sel: 0:lcd0; 1:lcd1 */
LCD_user_defined_func(u32 sel,u32 para1,u32 para2,u32 para3)213 static s32 LCD_user_defined_func(u32 sel, u32 para1, u32 para2, u32 para3)
214 {
215 return 0;
216 }
217
218 struct __lcd_panel t27p06_panel = {
219 /* panel driver name, must mach the lcd_drv_name in sys_config.fex */
220 .name = "t27p06",
221 .func = {
222 .cfg_panel_info = LCD_cfg_panel_info,
223 .cfg_open_flow = LCD_open_flow,
224 .cfg_close_flow = LCD_close_flow,
225 .lcd_user_defined_func = LCD_user_defined_func,
226 }
227 ,
228 };
229