1 /* drivers/video/sunxi/disp2/disp/lcd/ST7796S.c
2 *
3 * Copyright (c) 2017 Allwinnertech Co., Ltd.
4 * Author: zhengxiaobin <zhengxiaobin@allwinnertech.com>
5 *
6 * he0801a-068 panel driver
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 *
12 [lcd0]
13 * lcd_used = 1
14 *
15 * lcd_driver_name = "st7701s"
16 *
17 * lcd_bl_0_percent = 0
18 * lcd_bl_40_percent = 23
19 * lcd_bl_100_percent = 100
20 * lcd_backlight = 88
21 *
22 * lcd_if = 4
23 * lcd_x = 480
24 * lcd_y = 640
25 * lcd_width = 36
26 * lcd_height = 65
27 * lcd_dclk_freq = 25
28 *
29 * lcd_pwm_used = 1
30 * lcd_pwm_ch = 8
31 * lcd_pwm_freq = 50000
32 * lcd_pwm_pol = 1
33 * lcd_pwm_max_limit = 255
34 *
35 * lcd_hbp = 70
36 * lcd_ht = 615
37 * lcd_hspw = 8
38 * lcd_vbp = 30
39 * lcd_vt = 690
40 * lcd_vspw = 10
41 *
42 * lcd_dsi_if = 0
43 * lcd_dsi_lane = 2
44 * lcd_dsi_format = 0
45 * lcd_dsi_te = 0
46 * lcd_dsi_eotp = 0
47 *
48 * lcd_frm = 0
49 * lcd_io_phase = 0x0000
50 * lcd_hv_clk_phase = 0
51 * lcd_hv_sync_polarity= 0
52 * lcd_gamma_en = 0
53 * lcd_bright_curve_en = 0
54 * lcd_cmap_en = 0
55 *
56 * lcdgamma4iep = 22
57 *
58 * ;lcd_bl_en = port:PD09<1><0><default><1>
59 * lcd_power = "vcc-lcd"
60 * lcd_pin_power = "vcc18-dsi"
61 * lcd_pin_power1 = "vcc-pd"
62 *
63 * ;reset
64 * lcd_gpio_0 = port:PD09<1><0><default><1>
65 */
66 #include "st7701s.h"
67
68 static void lcd_power_on(u32 sel);
69 static void lcd_power_off(u32 sel);
70 static void lcd_bl_open(u32 sel);
71 static void lcd_bl_close(u32 sel);
72
73 static void lcd_panel_init(u32 sel);
74 static void lcd_panel_exit(u32 sel);
75
76 #define panel_reset(sel, val) sunxi_lcd_gpio_set_value(sel, 0, val)
77
lcd_cfg_panel_info(struct panel_extend_para * info)78 static void lcd_cfg_panel_info(struct panel_extend_para *info)
79 {
80 u32 i = 0, j = 0;
81 u32 items;
82 u8 lcd_gamma_tbl[][2] = {
83 {0, 0}, {15, 15}, {30, 30}, {45, 45}, {60, 60},
84 {75, 75}, {90, 90}, {105, 105}, {120, 120}, {135, 135},
85 {150, 150}, {165, 165}, {180, 180}, {195, 195}, {210, 210},
86 {225, 225}, {240, 240}, {255, 255},
87 };
88
89 u32 lcd_cmap_tbl[2][3][4] = {
90 {
91 {LCD_CMAP_G0, LCD_CMAP_B1, LCD_CMAP_G2, LCD_CMAP_B3},
92 {LCD_CMAP_B0, LCD_CMAP_R1, LCD_CMAP_B2, LCD_CMAP_R3},
93 {LCD_CMAP_R0, LCD_CMAP_G1, LCD_CMAP_R2, LCD_CMAP_G3},
94 },
95 {
96 {LCD_CMAP_B3, LCD_CMAP_G2, LCD_CMAP_B1, LCD_CMAP_G0},
97 {LCD_CMAP_R3, LCD_CMAP_B2, LCD_CMAP_R1, LCD_CMAP_B0},
98 {LCD_CMAP_G3, LCD_CMAP_R2, LCD_CMAP_G1, LCD_CMAP_R0},
99 },
100 };
101
102 items = sizeof(lcd_gamma_tbl) / 2;
103 for (i = 0; i < items - 1; i++) {
104 u32 num = lcd_gamma_tbl[i + 1][0] - lcd_gamma_tbl[i][0];
105
106 for (j = 0; j < num; j++) {
107 u32 value = 0;
108
109 value =
110 lcd_gamma_tbl[i][1] +
111 ((lcd_gamma_tbl[i + 1][1] - lcd_gamma_tbl[i][1]) *
112 j) /
113 num;
114 info->lcd_gamma_tbl[lcd_gamma_tbl[i][0] + j] =
115 (value << 16) + (value << 8) + value;
116 }
117 }
118 info->lcd_gamma_tbl[255] = (lcd_gamma_tbl[items - 1][1] << 16) +
119 (lcd_gamma_tbl[items - 1][1] << 8) +
120 lcd_gamma_tbl[items - 1][1];
121
122 memcpy(info->lcd_cmap_tbl, lcd_cmap_tbl, sizeof(lcd_cmap_tbl));
123 }
124
lcd_open_flow(u32 sel)125 static s32 lcd_open_flow(u32 sel)
126 {
127 LCD_OPEN_FUNC(sel, lcd_power_on, 0);
128 LCD_OPEN_FUNC(sel, lcd_panel_init, 10);
129 LCD_OPEN_FUNC(sel, sunxi_lcd_tcon_enable, 10);
130 LCD_OPEN_FUNC(sel, lcd_bl_open, 0);
131 return 0;
132 }
133
lcd_close_flow(u32 sel)134 static s32 lcd_close_flow(u32 sel)
135 {
136 LCD_CLOSE_FUNC(sel, lcd_bl_close, 0);
137 LCD_CLOSE_FUNC(sel, lcd_panel_exit, 10);
138 LCD_CLOSE_FUNC(sel, sunxi_lcd_tcon_disable, 0);
139 LCD_CLOSE_FUNC(sel, lcd_power_off, 0);
140
141 return 0;
142 }
143
lcd_power_on(u32 sel)144 static void lcd_power_on(u32 sel)
145 {
146 sunxi_lcd_pin_cfg(sel, 1);
147 sunxi_lcd_power_enable(sel, 0);
148 // sunxi_lcd_power_enable(sel, 1);
149 sunxi_lcd_delay_ms(10);
150
151 /* reset lcd by gpio */
152 panel_reset(sel, 1);
153 sunxi_lcd_delay_ms(1);
154 panel_reset(sel, 0);
155 sunxi_lcd_delay_ms(1);
156 panel_reset(sel, 1);
157 sunxi_lcd_delay_ms(10);
158 }
159
lcd_power_off(u32 sel)160 static void lcd_power_off(u32 sel)
161 {
162 sunxi_lcd_pin_cfg(sel, 0);
163 sunxi_lcd_delay_ms(1);
164 panel_reset(sel, 0);
165 sunxi_lcd_delay_ms(1);
166 sunxi_lcd_power_disable(sel, 0);
167 }
168
lcd_bl_open(u32 sel)169 static void lcd_bl_open(u32 sel)
170 {
171 sunxi_lcd_pwm_enable(sel);
172 sunxi_lcd_backlight_enable(sel);
173 }
174
lcd_bl_close(u32 sel)175 static void lcd_bl_close(u32 sel)
176 {
177 sunxi_lcd_backlight_disable(sel);
178 sunxi_lcd_pwm_disable(sel);
179 }
180
181 #define REGFLAG_DELAY 0XFE
182 #define REGFLAG_END_OF_TABLE 0xFC /* END OF REGISTERS MARKER */
183
184 struct LCM_setting_table {
185 u8 cmd;
186 u32 count;
187 u8 para_list[18];
188 };
189
190
191 static struct LCM_setting_table lcm_initialization_setting[] = {
192 {0x11, 1, {0x00} },
193 {REGFLAG_DELAY, 60, {} },
194
195 {0xff, 5, {0x77, 0x01, 0x00, 0x00, 0x10} },
196 {0xc0, 2, {0x4f, 0x00} },
197 {0xc1, 2, {0x07, 0x02} },
198 {0xc2, 2, {0x31, 0x05} },
199 {0xcc, 1, {0x10} },
200
201 {0xb0, 16, {0x00, 0x0a, 0x11, 0x0c, 0x10, 0x05, 0x00, 0x08, 0x08, 0x1f,
202 0x07, 0x13, 0x10, 0xa9, 0x30, 0x18} },
203
204 {0xb1, 16, {0x00, 0x0b, 0x11, 0x0d, 0x0f, 0x05, 0x02, 0x07, 0x06, 0x20,
205 0x05, 0x15, 0x13, 0xa9, 0x30, 0x18} },
206
207 {0xff, 5, {0x77, 0x01, 0x00, 0x00, 0x11} },
208
209 {0xb0, 1, {0x53} },
210 {0xb1, 1, {0x60} },
211 {0xb2, 1, {0x07} },
212 {0xb3, 1, {0x08} },
213 {0xb5, 1, {0x49} },
214 {0xb7, 1, {0x85} },
215 {0xb8, 1, {0x21} },
216 {0xb9, 1, {0x10} },
217 {0xc1, 1, {0x78} },
218 {0xc2, 1, {0x78} },
219 {REGFLAG_DELAY, 50, {} },
220
221 {0xd0, 1, {0x88} },
222 {0xe0, 3, {0x00, 0x00, 0x02} },
223 {0xe1, 11, {0x03, 0xa0, 0x00, 0x00, 0x02, 0xa0, 0x00, 0x00, 0x00, 0x33,
224 0x33} },
225 {0xe2, 12, {0x22, 0x22, 0x33, 0x33, 0x88, 0xa0, 0x00, 0x00, 0x87, 0xa0,
226 0x00, 0x00} },
227 {0xe3, 4, {0x00, 0x00, 0x22, 0x22} },
228 {0xe4, 2, {0x44, 0x44} },
229 {0xe5, 16, {0x04, 0x84, 0xa0, 0xa0, 0x06, 0x86, 0xa0, 0xa0, 0x08, 0x88,
230 0xa0, 0xa0, 0x0a, 0x8a, 0xa0, 0xa0} },
231
232 {0xe6, 4, {0x00, 0x00, 0x22, 0x22} },
233 {0xe7, 2, {0x44, 0x44} },
234 {0xe8, 16, {0x03, 0x83, 0xa0, 0xa0, 0x05, 0x85, 0xa0, 0xa0, 0x07, 0x87,
235 0xa0, 0xa0, 0x09, 0x89, 0xa0, 0xa0} },
236 {0xeb, 7, {0x00, 0x01, 0xe4, 0xe4, 0x88, 0x00, 0x40} },
237
238 {0xec, 2, {0x3c, 0x01} },
239 {0xed, 16, {0xab, 0x89, 0x76, 0x54, 0x02, 0xff, 0xff, 0xff, 0xff, 0xff,
240 0xff, 0x20, 0x45, 0x67, 0x98, 0xba} },
241 {0xff, 5, {0x77, 0x01, 0x00, 0x00, 0x00} },
242 {REGFLAG_DELAY, 50, {} },
243
244 {0x29, 1, {0x00} },
245 {REGFLAG_END_OF_TABLE, 0x00, {} }
246 };
247
lcd_panel_init(u32 sel)248 static void lcd_panel_init(u32 sel)
249 {
250 u32 i = 0;
251
252 sunxi_lcd_dsi_clk_enable(sel);
253 sunxi_lcd_delay_ms(10);
254
255 for (i = 0;; i++) {
256 if (lcm_initialization_setting[i].cmd == REGFLAG_END_OF_TABLE)
257 break;
258 else if (lcm_initialization_setting[i].cmd == REGFLAG_DELAY)
259 sunxi_lcd_delay_ms(lcm_initialization_setting[i].count);
260 else {
261 dsi_dcs_wr(0, lcm_initialization_setting[i].cmd,
262 lcm_initialization_setting[i].para_list,
263 lcm_initialization_setting[i].count);
264 }
265 }
266 }
267
lcd_panel_exit(u32 sel)268 static void lcd_panel_exit(u32 sel)
269 {
270 sunxi_lcd_dsi_dcs_write_0para(sel, 0x28);
271 sunxi_lcd_delay_ms(10);
272 sunxi_lcd_dsi_dcs_write_0para(sel, 0x10);
273 sunxi_lcd_delay_ms(10);
274 }
275
276 /*sel: 0:lcd0; 1:lcd1*/
lcd_user_defined_func(u32 sel,u32 para1,u32 para2,u32 para3)277 static s32 lcd_user_defined_func(u32 sel, u32 para1, u32 para2, u32 para3)
278 {
279 return 0;
280 }
281
282 struct __lcd_panel st7701s_panel = {
283 /* panel driver name, must mach the name of
284 * lcd_drv_name in sys_config.fex
285 */
286 .name = "st7701s",
287 .func = {
288 .cfg_panel_info = lcd_cfg_panel_info,
289 .cfg_open_flow = lcd_open_flow,
290 .cfg_close_flow = lcd_close_flow,
291 .lcd_user_defined_func = lcd_user_defined_func,
292 },
293 };
294