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@217 | 5 | * Copyright (C) 2015, 2016, 2017 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@155 | 21 | #include "board-display.h" |
paul@34 | 22 | |
paul@33 | 23 | #include "jzlcd.h" |
paul@33 | 24 | #include "sdram.h" |
paul@33 | 25 | #include "board.h" |
paul@15 | 26 | |
paul@40 | 27 | extern vidinfo_t panel_info; |
paul@95 | 28 | static unsigned long lcd_base; |
paul@68 | 29 | |
paul@100 | 30 | static unsigned int get_line_length() |
paul@100 | 31 | { |
paul@217 | 32 | return ALIGN((panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8, sizeof(uint32_t)); |
paul@100 | 33 | } |
paul@100 | 34 | |
paul@217 | 35 | static uint32_t *get_pixel32(unsigned short h, unsigned short v) |
paul@68 | 36 | { |
paul@217 | 37 | return (uint32_t *) (lcd_base + v * get_line_length()) + h; |
paul@100 | 38 | } |
paul@68 | 39 | |
paul@217 | 40 | static uint16_t *get_pixel16(unsigned short h, unsigned short v) |
paul@100 | 41 | { |
paul@217 | 42 | return (uint16_t *) (lcd_base + v * get_line_length()) + h; |
paul@100 | 43 | } |
paul@100 | 44 | |
paul@217 | 45 | static uint8_t *get_pixel8(unsigned short h, unsigned short v) |
paul@101 | 46 | { |
paul@217 | 47 | return (uint8_t *) (lcd_base + v * get_line_length()) + h; |
paul@101 | 48 | } |
paul@101 | 49 | |
paul@217 | 50 | static uint8_t *get_pixel4(unsigned short h, unsigned short v) |
paul@103 | 51 | { |
paul@217 | 52 | return (uint8_t *) (lcd_base + v * get_line_length()) + h / 2; |
paul@103 | 53 | } |
paul@103 | 54 | |
paul@103 | 55 | static inline unsigned short div(unsigned short num, unsigned short denom, unsigned short scale) |
paul@103 | 56 | { |
paul@103 | 57 | return (scale * num) / denom; |
paul@103 | 58 | } |
paul@103 | 59 | |
paul@217 | 60 | static uint32_t pixel(uint8_t r, uint8_t g, uint8_t b, uint8_t rmax, uint8_t gmax, uint8_t bmax, uint8_t rshift, uint8_t gshift, uint8_t bshift) |
paul@104 | 61 | { |
paul@104 | 62 | return (div(r, 255, rmax) << rshift) | (div(g, 255, gmax) << gshift) | (div(b, 255, bmax) << bshift); |
paul@104 | 63 | } |
paul@104 | 64 | |
paul@217 | 65 | uint32_t get_bitmap_value(unsigned short x, uint32_t value) |
paul@162 | 66 | { |
paul@162 | 67 | return (value >> (((panel_info.vl_col - 1 - x) * 32) / panel_info.vl_col)) % 2 ? 0xffffffff : 0; |
paul@162 | 68 | } |
paul@162 | 69 | |
paul@217 | 70 | static void get_colour(unsigned short h, unsigned short v, uint8_t rgb[], unsigned short pixel_type) |
paul@100 | 71 | { |
paul@163 | 72 | unsigned short v_max = panel_info.vl_row - 1; |
paul@163 | 73 | unsigned short h_max = panel_info.vl_col - 1; |
paul@100 | 74 | |
paul@138 | 75 | rgb[(pixel_type - 1) % 3] = div(h, h_max, 255); |
paul@138 | 76 | rgb[pixel_type % 3] = div(v, v_max, 255); |
paul@138 | 77 | rgb[(pixel_type + 1) % 3] = (rgb[0] + rgb[1]) / 2; |
paul@101 | 78 | } |
paul@101 | 79 | |
paul@217 | 80 | static void set_pixel32(unsigned short h, unsigned short v, uint32_t value) |
paul@161 | 81 | { |
paul@217 | 82 | uint32_t *pix = get_pixel32(h, v); |
paul@161 | 83 | *pix = value; |
paul@161 | 84 | } |
paul@161 | 85 | |
paul@217 | 86 | static void set_pixel16_565(unsigned short h, unsigned short v, uint32_t value) |
paul@161 | 87 | { |
paul@217 | 88 | uint16_t *pix = get_pixel16(h, v); |
paul@217 | 89 | *pix = (uint16_t) value; |
paul@161 | 90 | } |
paul@161 | 91 | |
paul@217 | 92 | static void set_pixel8(unsigned short h, unsigned short v, uint32_t value) |
paul@161 | 93 | { |
paul@217 | 94 | uint8_t *pix = get_pixel8(h, v); |
paul@217 | 95 | *pix = (uint8_t) value; |
paul@161 | 96 | } |
paul@161 | 97 | |
paul@217 | 98 | static void set_pixel4(unsigned short h, unsigned short v, uint32_t value) |
paul@161 | 99 | { |
paul@217 | 100 | uint8_t *pix = get_pixel4(h, v); |
paul@217 | 101 | uint8_t mask = h & 1 ? 0xf0 : 0x0f; |
paul@217 | 102 | *pix = (*pix & mask) | ((uint8_t) value); |
paul@161 | 103 | } |
paul@161 | 104 | |
paul@217 | 105 | void set_pixel(unsigned short h, unsigned short v, uint32_t value) |
paul@161 | 106 | { |
paul@161 | 107 | switch (panel_info.vl_bpix) |
paul@161 | 108 | { |
paul@161 | 109 | case LCD_COLOR32: |
paul@161 | 110 | set_pixel32(h, v, value); |
paul@161 | 111 | break; |
paul@161 | 112 | |
paul@161 | 113 | case LCD_COLOR8: |
paul@161 | 114 | set_pixel8(h, v, value); |
paul@161 | 115 | break; |
paul@161 | 116 | |
paul@161 | 117 | case LCD_COLOR4: |
paul@161 | 118 | set_pixel4(h, v, value); |
paul@161 | 119 | break; |
paul@161 | 120 | |
paul@161 | 121 | case LCD_COLOR16: |
paul@161 | 122 | default: |
paul@161 | 123 | set_pixel16_565(h, v, value); |
paul@161 | 124 | break; |
paul@161 | 125 | } |
paul@161 | 126 | } |
paul@138 | 127 | static void test_pixel32(unsigned short h, unsigned short v, unsigned short pixel_type) |
paul@101 | 128 | { |
paul@217 | 129 | uint8_t rgb[3]; |
paul@104 | 130 | |
paul@138 | 131 | get_colour(h, v, rgb, pixel_type); |
paul@162 | 132 | set_pixel32(h, v, pixel(rgb[0], rgb[1], rgb[2], 255, 255, 255, 16, 8, 0) | get_bitmap_value(h, pixel_type)); |
paul@100 | 133 | } |
paul@100 | 134 | |
paul@138 | 135 | static void test_pixel16_565(unsigned short h, unsigned short v, unsigned short pixel_type) |
paul@100 | 136 | { |
paul@217 | 137 | uint8_t rgb[3]; |
paul@104 | 138 | |
paul@138 | 139 | get_colour(h, v, rgb, pixel_type); |
paul@162 | 140 | set_pixel16_565(h, v, pixel(rgb[0], rgb[1], rgb[2], 31, 63, 31, 11, 5, 0) | get_bitmap_value(h, pixel_type)); |
paul@101 | 141 | } |
paul@100 | 142 | |
paul@138 | 143 | static void test_pixel8(unsigned short h, unsigned short v, unsigned short pixel_type) |
paul@101 | 144 | { |
paul@217 | 145 | uint8_t rgb[3]; |
paul@104 | 146 | |
paul@138 | 147 | get_colour(h, v, rgb, pixel_type); |
paul@162 | 148 | set_pixel8(h, v, pixel(rgb[0], rgb[1], rgb[2], 7, 7, 3, 5, 2, 0) | get_bitmap_value(h, pixel_type)); |
paul@100 | 149 | } |
paul@100 | 150 | |
paul@138 | 151 | static void test_pixel4(unsigned short h, unsigned short v, unsigned short pixel_type) |
paul@103 | 152 | { |
paul@217 | 153 | uint8_t rgb[3]; |
paul@104 | 154 | |
paul@138 | 155 | get_colour(h, v, rgb, pixel_type); |
paul@162 | 156 | set_pixel4(h, v, pixel(rgb[0], rgb[1], rgb[2], 1, 2, 1, 3, 1, 0) | get_bitmap_value(h, pixel_type)); |
paul@103 | 157 | } |
paul@103 | 158 | |
paul@138 | 159 | void test_pixel(unsigned short h, unsigned short v, unsigned short pixel_type) |
paul@100 | 160 | { |
paul@100 | 161 | switch (panel_info.vl_bpix) |
paul@100 | 162 | { |
paul@100 | 163 | case LCD_COLOR32: |
paul@138 | 164 | test_pixel32(h, v, pixel_type); |
paul@100 | 165 | break; |
paul@100 | 166 | |
paul@101 | 167 | case LCD_COLOR8: |
paul@138 | 168 | test_pixel8(h, v, pixel_type); |
paul@101 | 169 | break; |
paul@101 | 170 | |
paul@103 | 171 | case LCD_COLOR4: |
paul@138 | 172 | test_pixel4(h, v, pixel_type); |
paul@103 | 173 | break; |
paul@103 | 174 | |
paul@101 | 175 | case LCD_COLOR16: |
paul@100 | 176 | default: |
paul@138 | 177 | test_pixel16_565(h, v, pixel_type); |
paul@100 | 178 | break; |
paul@100 | 179 | } |
paul@100 | 180 | } |
paul@100 | 181 | |
paul@100 | 182 | void clear_pixel32(unsigned short h, unsigned short v) |
paul@100 | 183 | { |
paul@217 | 184 | uint32_t *pix = get_pixel32(h, v); |
paul@100 | 185 | *pix = 0; |
paul@100 | 186 | } |
paul@100 | 187 | |
paul@100 | 188 | void clear_pixel16(unsigned short h, unsigned short v) |
paul@100 | 189 | { |
paul@217 | 190 | uint16_t *pix = get_pixel16(h, v); |
paul@100 | 191 | *pix = 0; |
paul@68 | 192 | } |
paul@68 | 193 | |
paul@101 | 194 | void clear_pixel8(unsigned short h, unsigned short v) |
paul@101 | 195 | { |
paul@217 | 196 | uint8_t *pix = get_pixel8(h, v); |
paul@101 | 197 | *pix = 0; |
paul@101 | 198 | } |
paul@101 | 199 | |
paul@103 | 200 | void clear_pixel4(unsigned short h, unsigned short v) |
paul@103 | 201 | { |
paul@217 | 202 | uint8_t *pix = get_pixel4(h, v); |
paul@217 | 203 | uint8_t mask = h & 1 ? 0xf0 : 0x0f; |
paul@103 | 204 | *pix = *pix & mask; |
paul@103 | 205 | } |
paul@103 | 206 | |
paul@68 | 207 | void clear_pixel(unsigned short h, unsigned short v) |
paul@68 | 208 | { |
paul@100 | 209 | switch (panel_info.vl_bpix) |
paul@100 | 210 | { |
paul@100 | 211 | case LCD_COLOR32: |
paul@100 | 212 | clear_pixel32(h, v); |
paul@100 | 213 | break; |
paul@68 | 214 | |
paul@101 | 215 | case LCD_COLOR8: |
paul@101 | 216 | clear_pixel8(h, v); |
paul@101 | 217 | break; |
paul@101 | 218 | |
paul@103 | 219 | case LCD_COLOR4: |
paul@103 | 220 | clear_pixel4(h, v); |
paul@103 | 221 | break; |
paul@103 | 222 | |
paul@101 | 223 | case LCD_COLOR16: |
paul@100 | 224 | default: |
paul@100 | 225 | clear_pixel16(h, v); |
paul@100 | 226 | break; |
paul@100 | 227 | } |
paul@68 | 228 | } |
paul@40 | 229 | |
paul@100 | 230 | void test_pattern() |
paul@15 | 231 | { |
paul@15 | 232 | unsigned short v_max = panel_info.vl_row; |
paul@15 | 233 | unsigned short h_max = panel_info.vl_col; |
paul@15 | 234 | unsigned short v, h; |
paul@68 | 235 | |
paul@68 | 236 | for (v = 0; v < v_max; v += 1) { |
paul@68 | 237 | for (h = 0; h < h_max; h += 1) { |
paul@138 | 238 | test_pixel(h, v, 1); |
paul@68 | 239 | } |
paul@68 | 240 | } |
paul@68 | 241 | } |
paul@68 | 242 | |
paul@97 | 243 | void lcd_clear(unsigned long lcd_base) |
paul@68 | 244 | { |
paul@68 | 245 | unsigned short v_max = panel_info.vl_row; |
paul@68 | 246 | unsigned short h_max = panel_info.vl_col; |
paul@68 | 247 | unsigned short v, h; |
paul@95 | 248 | unsigned long *pix = (unsigned long *)lcd_base; |
paul@15 | 249 | |
paul@22 | 250 | for (v = 0; v < v_max; v += 1) { |
paul@22 | 251 | for (h = 0; h < h_max; h += 1) { |
paul@68 | 252 | *pix++ = 0; |
paul@15 | 253 | } |
paul@15 | 254 | } |
paul@15 | 255 | } |
paul@15 | 256 | |
paul@15 | 257 | /* LCD initialisation. */ |
paul@15 | 258 | |
paul@195 | 259 | void lcd_init() |
paul@15 | 260 | { |
paul@20 | 261 | __lcd_display_pin_init(); |
paul@20 | 262 | __lcd_display_on(); |
paul@20 | 263 | |
paul@97 | 264 | lcd_base = lcd_ctrl_init(); |
paul@15 | 265 | lcd_clear(lcd_base); |
paul@15 | 266 | lcd_enable(); |
paul@15 | 267 | } |