paul@15 | 1 | /* |
paul@15 | 2 | * Ben NanoNote LCD initialisation, based on uboot-xburst and xburst-tools. |
paul@15 | 3 | * |
paul@33 | 4 | * Copyright (C) 2001-2002 Wolfgang Denk, DENX Software Engineering, <wd@denx.de> |
paul@90 | 5 | * Copyright (C) 2015, 2016 Paul Boddie <paul@boddie.org.uk> |
paul@15 | 6 | * |
paul@63 | 7 | * This program is free software: you can redistribute it and/or modify |
paul@63 | 8 | * it under the terms of the GNU General Public License as published by |
paul@63 | 9 | * the Free Software Foundation, either version 3 of the License, or |
paul@63 | 10 | * (at your option) any later version. |
paul@15 | 11 | * |
paul@63 | 12 | * This program is distributed in the hope that it will be useful, |
paul@63 | 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
paul@63 | 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
paul@63 | 15 | * GNU General Public License for more details. |
paul@15 | 16 | * |
paul@63 | 17 | * You should have received a copy of the GNU General Public License |
paul@63 | 18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
paul@15 | 19 | */ |
paul@15 | 20 | |
paul@34 | 21 | #ifdef CONFIG_CPU_JZ4730_MINIPC |
paul@34 | 22 | #include "minipc_claa070vc01.h" |
paul@40 | 23 | #include "minipc.h" |
paul@34 | 24 | #else |
paul@34 | 25 | #include "nanonote_gpm940b0.h" |
paul@40 | 26 | #include "nanonote.h" |
paul@34 | 27 | #endif |
paul@34 | 28 | |
paul@15 | 29 | #include "xburst_types.h" |
paul@33 | 30 | #include "jzlcd.h" |
paul@33 | 31 | #include "sdram.h" |
paul@33 | 32 | #include "board.h" |
paul@15 | 33 | |
paul@40 | 34 | extern vidinfo_t panel_info; |
paul@95 | 35 | static unsigned long lcd_base; |
paul@68 | 36 | |
paul@100 | 37 | static unsigned int get_line_length() |
paul@100 | 38 | { |
paul@100 | 39 | return ALIGN((panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8, sizeof(u32)); |
paul@100 | 40 | } |
paul@100 | 41 | |
paul@100 | 42 | static u32 *get_pixel32(unsigned short h, unsigned short v) |
paul@68 | 43 | { |
paul@100 | 44 | return (u32 *) (lcd_base + v * get_line_length()) + h; |
paul@100 | 45 | } |
paul@68 | 46 | |
paul@100 | 47 | static u16 *get_pixel16(unsigned short h, unsigned short v) |
paul@100 | 48 | { |
paul@100 | 49 | return (u16 *) (lcd_base + v * get_line_length()) + h; |
paul@100 | 50 | } |
paul@100 | 51 | |
paul@101 | 52 | static u8 *get_pixel8(unsigned short h, unsigned short v) |
paul@101 | 53 | { |
paul@101 | 54 | return (u8 *) (lcd_base + v * get_line_length()) + h; |
paul@101 | 55 | } |
paul@101 | 56 | |
paul@103 | 57 | static u8 *get_pixel4(unsigned short h, unsigned short v) |
paul@103 | 58 | { |
paul@103 | 59 | return (u8 *) (lcd_base + v * get_line_length()) + h / 2; |
paul@103 | 60 | } |
paul@103 | 61 | |
paul@103 | 62 | static inline unsigned short div(unsigned short num, unsigned short denom, unsigned short scale) |
paul@103 | 63 | { |
paul@103 | 64 | return (scale * num) / denom; |
paul@103 | 65 | } |
paul@103 | 66 | |
paul@104 | 67 | static unsigned long pixel(u8 r, u8 g, u8 b, u8 rmax, u8 gmax, u8 bmax, u8 rshift, u8 gshift, u8 bshift) |
paul@104 | 68 | { |
paul@104 | 69 | return (div(r, 255, rmax) << rshift) | (div(g, 255, gmax) << gshift) | (div(b, 255, bmax) << bshift); |
paul@104 | 70 | } |
paul@104 | 71 | |
paul@104 | 72 | static void get_colour(unsigned short h, unsigned short v, u8 rgb[]) |
paul@100 | 73 | { |
paul@100 | 74 | unsigned short v_max = panel_info.vl_row; |
paul@100 | 75 | unsigned short h_max = panel_info.vl_col; |
paul@100 | 76 | |
paul@104 | 77 | rgb[0] = div(h, h_max, 255); |
paul@104 | 78 | rgb[1] = div(v, v_max, 255); |
paul@104 | 79 | rgb[2] = (rgb[0] + rgb[1]) / 2; |
paul@101 | 80 | } |
paul@101 | 81 | |
paul@101 | 82 | static void test_pixel32(unsigned short h, unsigned short v) |
paul@101 | 83 | { |
paul@101 | 84 | u32 *pix = get_pixel32(h, v); |
paul@104 | 85 | u8 rgb[3]; |
paul@104 | 86 | |
paul@104 | 87 | get_colour(h, v, rgb); |
paul@104 | 88 | *pix = (u32) pixel(rgb[0], rgb[1], rgb[2], 255, 255, 255, 16, 8, 0); |
paul@100 | 89 | } |
paul@100 | 90 | |
paul@100 | 91 | static void test_pixel16_565(unsigned short h, unsigned short v) |
paul@100 | 92 | { |
paul@100 | 93 | u16 *pix = get_pixel16(h, v); |
paul@104 | 94 | u8 rgb[3]; |
paul@104 | 95 | |
paul@104 | 96 | get_colour(h, v, rgb); |
paul@104 | 97 | *pix = (u16) pixel(rgb[0], rgb[1], rgb[2], 31, 63, 31, 11, 5, 0); |
paul@101 | 98 | } |
paul@100 | 99 | |
paul@101 | 100 | static void test_pixel8(unsigned short h, unsigned short v) |
paul@101 | 101 | { |
paul@101 | 102 | u8 *pix = get_pixel8(h, v); |
paul@104 | 103 | u8 rgb[3]; |
paul@104 | 104 | |
paul@104 | 105 | get_colour(h, v, rgb); |
paul@104 | 106 | *pix = (u8) pixel(rgb[0], rgb[1], rgb[2], 7, 7, 3, 5, 2, 0); |
paul@100 | 107 | } |
paul@100 | 108 | |
paul@103 | 109 | static void test_pixel4(unsigned short h, unsigned short v) |
paul@103 | 110 | { |
paul@103 | 111 | u8 *pix = get_pixel4(h, v); |
paul@103 | 112 | u8 mask = h & 1 ? 0xf0 : 0x0f; |
paul@104 | 113 | u8 rgb[3]; |
paul@104 | 114 | |
paul@104 | 115 | get_colour(h, v, rgb); |
paul@104 | 116 | *pix = (*pix & mask) | ((u8) pixel(rgb[0], rgb[1], rgb[2], 1, 2, 1, 3, 1, 0) << (h & 1 ? 0 : 4)); |
paul@103 | 117 | } |
paul@103 | 118 | |
paul@100 | 119 | void test_pixel(unsigned short h, unsigned short v) |
paul@100 | 120 | { |
paul@100 | 121 | switch (panel_info.vl_bpix) |
paul@100 | 122 | { |
paul@100 | 123 | case LCD_COLOR32: |
paul@100 | 124 | test_pixel32(h, v); |
paul@100 | 125 | break; |
paul@100 | 126 | |
paul@101 | 127 | case LCD_COLOR8: |
paul@101 | 128 | test_pixel8(h, v); |
paul@101 | 129 | break; |
paul@101 | 130 | |
paul@103 | 131 | case LCD_COLOR4: |
paul@103 | 132 | test_pixel4(h, v); |
paul@103 | 133 | break; |
paul@103 | 134 | |
paul@101 | 135 | case LCD_COLOR16: |
paul@100 | 136 | default: |
paul@100 | 137 | test_pixel16_565(h, v); |
paul@100 | 138 | break; |
paul@100 | 139 | } |
paul@100 | 140 | } |
paul@100 | 141 | |
paul@100 | 142 | void clear_pixel32(unsigned short h, unsigned short v) |
paul@100 | 143 | { |
paul@100 | 144 | u32 *pix = get_pixel32(h, v); |
paul@100 | 145 | *pix = 0; |
paul@100 | 146 | } |
paul@100 | 147 | |
paul@100 | 148 | void clear_pixel16(unsigned short h, unsigned short v) |
paul@100 | 149 | { |
paul@100 | 150 | u16 *pix = get_pixel16(h, v); |
paul@100 | 151 | *pix = 0; |
paul@68 | 152 | } |
paul@68 | 153 | |
paul@101 | 154 | void clear_pixel8(unsigned short h, unsigned short v) |
paul@101 | 155 | { |
paul@101 | 156 | u8 *pix = get_pixel8(h, v); |
paul@101 | 157 | *pix = 0; |
paul@101 | 158 | } |
paul@101 | 159 | |
paul@103 | 160 | void clear_pixel4(unsigned short h, unsigned short v) |
paul@103 | 161 | { |
paul@103 | 162 | u8 *pix = get_pixel4(h, v); |
paul@103 | 163 | u8 mask = h & 1 ? 0xf0 : 0x0f; |
paul@103 | 164 | *pix = *pix & mask; |
paul@103 | 165 | } |
paul@103 | 166 | |
paul@68 | 167 | void clear_pixel(unsigned short h, unsigned short v) |
paul@68 | 168 | { |
paul@100 | 169 | switch (panel_info.vl_bpix) |
paul@100 | 170 | { |
paul@100 | 171 | case LCD_COLOR32: |
paul@100 | 172 | clear_pixel32(h, v); |
paul@100 | 173 | break; |
paul@68 | 174 | |
paul@101 | 175 | case LCD_COLOR8: |
paul@101 | 176 | clear_pixel8(h, v); |
paul@101 | 177 | break; |
paul@101 | 178 | |
paul@103 | 179 | case LCD_COLOR4: |
paul@103 | 180 | clear_pixel4(h, v); |
paul@103 | 181 | break; |
paul@103 | 182 | |
paul@101 | 183 | case LCD_COLOR16: |
paul@100 | 184 | default: |
paul@100 | 185 | clear_pixel16(h, v); |
paul@100 | 186 | break; |
paul@100 | 187 | } |
paul@68 | 188 | } |
paul@40 | 189 | |
paul@100 | 190 | void test_pattern() |
paul@15 | 191 | { |
paul@15 | 192 | unsigned short v_max = panel_info.vl_row; |
paul@15 | 193 | unsigned short h_max = panel_info.vl_col; |
paul@15 | 194 | unsigned short v, h; |
paul@68 | 195 | |
paul@68 | 196 | for (v = 0; v < v_max; v += 1) { |
paul@68 | 197 | for (h = 0; h < h_max; h += 1) { |
paul@68 | 198 | test_pixel(h, v); |
paul@68 | 199 | } |
paul@68 | 200 | } |
paul@68 | 201 | } |
paul@68 | 202 | |
paul@97 | 203 | void lcd_clear(unsigned long lcd_base) |
paul@68 | 204 | { |
paul@68 | 205 | unsigned short v_max = panel_info.vl_row; |
paul@68 | 206 | unsigned short h_max = panel_info.vl_col; |
paul@68 | 207 | unsigned short v, h; |
paul@95 | 208 | unsigned long *pix = (unsigned long *)lcd_base; |
paul@15 | 209 | |
paul@22 | 210 | for (v = 0; v < v_max; v += 1) { |
paul@22 | 211 | for (h = 0; h < h_max; h += 1) { |
paul@68 | 212 | *pix++ = 0; |
paul@15 | 213 | } |
paul@15 | 214 | } |
paul@15 | 215 | } |
paul@15 | 216 | |
paul@15 | 217 | /* LCD initialisation. */ |
paul@15 | 218 | |
paul@15 | 219 | void lcd_init(void) |
paul@15 | 220 | { |
paul@20 | 221 | __lcd_display_pin_init(); |
paul@20 | 222 | __lcd_display_on(); |
paul@20 | 223 | |
paul@97 | 224 | lcd_base = lcd_ctrl_init(); |
paul@15 | 225 | lcd_clear(lcd_base); |
paul@15 | 226 | lcd_enable(); |
paul@15 | 227 | } |