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@221 | 28 | extern struct jzfb_info jzfb; |
paul@221 | 29 | static uint32_t lcd_base; |
paul@68 | 30 | |
paul@221 | 31 | static uint16_t get_line_length() |
paul@100 | 32 | { |
paul@221 | 33 | return ALIGN((panel_info.jz_fb->w * panel_info.jz_fb->bpp) / 8, sizeof(uint32_t)); |
paul@100 | 34 | } |
paul@100 | 35 | |
paul@221 | 36 | static uint32_t *get_pixel32(uint16_t h, uint16_t v) |
paul@68 | 37 | { |
paul@217 | 38 | return (uint32_t *) (lcd_base + v * get_line_length()) + h; |
paul@100 | 39 | } |
paul@68 | 40 | |
paul@221 | 41 | static uint16_t *get_pixel16(uint16_t h, uint16_t v) |
paul@100 | 42 | { |
paul@217 | 43 | return (uint16_t *) (lcd_base + v * get_line_length()) + h; |
paul@100 | 44 | } |
paul@100 | 45 | |
paul@221 | 46 | static uint8_t *get_pixel8(uint16_t h, uint16_t v) |
paul@101 | 47 | { |
paul@217 | 48 | return (uint8_t *) (lcd_base + v * get_line_length()) + h; |
paul@101 | 49 | } |
paul@101 | 50 | |
paul@221 | 51 | static uint8_t *get_pixel4(uint16_t h, uint16_t v) |
paul@103 | 52 | { |
paul@217 | 53 | return (uint8_t *) (lcd_base + v * get_line_length()) + h / 2; |
paul@103 | 54 | } |
paul@103 | 55 | |
paul@221 | 56 | static inline uint16_t div(uint16_t num, uint16_t denom, uint16_t scale) |
paul@103 | 57 | { |
paul@103 | 58 | return (scale * num) / denom; |
paul@103 | 59 | } |
paul@103 | 60 | |
paul@217 | 61 | 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 | 62 | { |
paul@104 | 63 | return (div(r, 255, rmax) << rshift) | (div(g, 255, gmax) << gshift) | (div(b, 255, bmax) << bshift); |
paul@104 | 64 | } |
paul@104 | 65 | |
paul@221 | 66 | uint32_t get_bitmap_value(uint16_t x, uint32_t value) |
paul@162 | 67 | { |
paul@221 | 68 | return (value >> (((panel_info.jz_fb->w - 1 - x) * 32) / panel_info.jz_fb->w)) % 2 ? 0xffffffff : 0; |
paul@162 | 69 | } |
paul@162 | 70 | |
paul@221 | 71 | static void get_colour(uint16_t h, uint16_t v, uint8_t rgb[], uint16_t pixel_type) |
paul@100 | 72 | { |
paul@221 | 73 | uint16_t v_max = panel_info.jz_fb->h - 1; |
paul@221 | 74 | uint16_t h_max = panel_info.jz_fb->w - 1; |
paul@100 | 75 | |
paul@138 | 76 | rgb[(pixel_type - 1) % 3] = div(h, h_max, 255); |
paul@138 | 77 | rgb[pixel_type % 3] = div(v, v_max, 255); |
paul@138 | 78 | rgb[(pixel_type + 1) % 3] = (rgb[0] + rgb[1]) / 2; |
paul@101 | 79 | } |
paul@101 | 80 | |
paul@221 | 81 | static void set_pixel32(uint16_t h, uint16_t v, uint32_t value) |
paul@161 | 82 | { |
paul@217 | 83 | uint32_t *pix = get_pixel32(h, v); |
paul@161 | 84 | *pix = value; |
paul@161 | 85 | } |
paul@161 | 86 | |
paul@221 | 87 | static void set_pixel16_565(uint16_t h, uint16_t v, uint32_t value) |
paul@161 | 88 | { |
paul@217 | 89 | uint16_t *pix = get_pixel16(h, v); |
paul@217 | 90 | *pix = (uint16_t) value; |
paul@161 | 91 | } |
paul@161 | 92 | |
paul@221 | 93 | static void set_pixel8(uint16_t h, uint16_t v, uint32_t value) |
paul@161 | 94 | { |
paul@217 | 95 | uint8_t *pix = get_pixel8(h, v); |
paul@217 | 96 | *pix = (uint8_t) value; |
paul@161 | 97 | } |
paul@161 | 98 | |
paul@221 | 99 | static void set_pixel4(uint16_t h, uint16_t v, uint32_t value) |
paul@161 | 100 | { |
paul@217 | 101 | uint8_t *pix = get_pixel4(h, v); |
paul@217 | 102 | uint8_t mask = h & 1 ? 0xf0 : 0x0f; |
paul@217 | 103 | *pix = (*pix & mask) | ((uint8_t) value); |
paul@161 | 104 | } |
paul@161 | 105 | |
paul@221 | 106 | void set_pixel(uint16_t h, uint16_t v, uint32_t value) |
paul@161 | 107 | { |
paul@221 | 108 | switch (panel_info.jz_fb->bpp) |
paul@161 | 109 | { |
paul@221 | 110 | case 32: |
paul@161 | 111 | set_pixel32(h, v, value); |
paul@161 | 112 | break; |
paul@161 | 113 | |
paul@221 | 114 | case 8: |
paul@161 | 115 | set_pixel8(h, v, value); |
paul@161 | 116 | break; |
paul@161 | 117 | |
paul@221 | 118 | case 4: |
paul@161 | 119 | set_pixel4(h, v, value); |
paul@161 | 120 | break; |
paul@161 | 121 | |
paul@221 | 122 | case 16: |
paul@161 | 123 | default: |
paul@161 | 124 | set_pixel16_565(h, v, value); |
paul@161 | 125 | break; |
paul@161 | 126 | } |
paul@161 | 127 | } |
paul@221 | 128 | static void test_pixel32(uint16_t h, uint16_t v, uint16_t pixel_type) |
paul@101 | 129 | { |
paul@217 | 130 | uint8_t rgb[3]; |
paul@104 | 131 | |
paul@138 | 132 | get_colour(h, v, rgb, pixel_type); |
paul@162 | 133 | 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 | 134 | } |
paul@100 | 135 | |
paul@221 | 136 | static void test_pixel16_565(uint16_t h, uint16_t v, uint16_t pixel_type) |
paul@100 | 137 | { |
paul@217 | 138 | uint8_t rgb[3]; |
paul@104 | 139 | |
paul@138 | 140 | get_colour(h, v, rgb, pixel_type); |
paul@162 | 141 | 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 | 142 | } |
paul@100 | 143 | |
paul@221 | 144 | static void test_pixel8(uint16_t h, uint16_t v, uint16_t pixel_type) |
paul@101 | 145 | { |
paul@217 | 146 | uint8_t rgb[3]; |
paul@104 | 147 | |
paul@138 | 148 | get_colour(h, v, rgb, pixel_type); |
paul@162 | 149 | 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 | 150 | } |
paul@100 | 151 | |
paul@221 | 152 | static void test_pixel4(uint16_t h, uint16_t v, uint16_t pixel_type) |
paul@103 | 153 | { |
paul@217 | 154 | uint8_t rgb[3]; |
paul@104 | 155 | |
paul@138 | 156 | get_colour(h, v, rgb, pixel_type); |
paul@162 | 157 | 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 | 158 | } |
paul@103 | 159 | |
paul@221 | 160 | void test_pixel(uint16_t h, uint16_t v, uint16_t pixel_type) |
paul@100 | 161 | { |
paul@221 | 162 | switch (panel_info.jz_fb->bpp) |
paul@100 | 163 | { |
paul@221 | 164 | case 32: |
paul@138 | 165 | test_pixel32(h, v, pixel_type); |
paul@100 | 166 | break; |
paul@100 | 167 | |
paul@221 | 168 | case 8: |
paul@138 | 169 | test_pixel8(h, v, pixel_type); |
paul@101 | 170 | break; |
paul@101 | 171 | |
paul@221 | 172 | case 4: |
paul@138 | 173 | test_pixel4(h, v, pixel_type); |
paul@103 | 174 | break; |
paul@103 | 175 | |
paul@221 | 176 | case 16: |
paul@100 | 177 | default: |
paul@138 | 178 | test_pixel16_565(h, v, pixel_type); |
paul@100 | 179 | break; |
paul@100 | 180 | } |
paul@100 | 181 | } |
paul@100 | 182 | |
paul@221 | 183 | void clear_pixel32(uint16_t h, uint16_t v) |
paul@100 | 184 | { |
paul@217 | 185 | uint32_t *pix = get_pixel32(h, v); |
paul@100 | 186 | *pix = 0; |
paul@100 | 187 | } |
paul@100 | 188 | |
paul@221 | 189 | void clear_pixel16(uint16_t h, uint16_t v) |
paul@100 | 190 | { |
paul@217 | 191 | uint16_t *pix = get_pixel16(h, v); |
paul@100 | 192 | *pix = 0; |
paul@68 | 193 | } |
paul@68 | 194 | |
paul@221 | 195 | void clear_pixel8(uint16_t h, uint16_t v) |
paul@101 | 196 | { |
paul@217 | 197 | uint8_t *pix = get_pixel8(h, v); |
paul@101 | 198 | *pix = 0; |
paul@101 | 199 | } |
paul@101 | 200 | |
paul@221 | 201 | void clear_pixel4(uint16_t h, uint16_t v) |
paul@103 | 202 | { |
paul@217 | 203 | uint8_t *pix = get_pixel4(h, v); |
paul@217 | 204 | uint8_t mask = h & 1 ? 0xf0 : 0x0f; |
paul@103 | 205 | *pix = *pix & mask; |
paul@103 | 206 | } |
paul@103 | 207 | |
paul@221 | 208 | void clear_pixel(uint16_t h, uint16_t v) |
paul@68 | 209 | { |
paul@221 | 210 | switch (panel_info.jz_fb->bpp) |
paul@100 | 211 | { |
paul@221 | 212 | case 32: |
paul@100 | 213 | clear_pixel32(h, v); |
paul@100 | 214 | break; |
paul@68 | 215 | |
paul@221 | 216 | case 8: |
paul@101 | 217 | clear_pixel8(h, v); |
paul@101 | 218 | break; |
paul@101 | 219 | |
paul@221 | 220 | case 4: |
paul@103 | 221 | clear_pixel4(h, v); |
paul@103 | 222 | break; |
paul@103 | 223 | |
paul@221 | 224 | case 16: |
paul@100 | 225 | default: |
paul@100 | 226 | clear_pixel16(h, v); |
paul@100 | 227 | break; |
paul@100 | 228 | } |
paul@68 | 229 | } |
paul@40 | 230 | |
paul@100 | 231 | void test_pattern() |
paul@15 | 232 | { |
paul@221 | 233 | uint16_t v_max = panel_info.jz_fb->h; |
paul@221 | 234 | uint16_t h_max = panel_info.jz_fb->w; |
paul@221 | 235 | uint16_t v, h; |
paul@68 | 236 | |
paul@68 | 237 | for (v = 0; v < v_max; v += 1) { |
paul@68 | 238 | for (h = 0; h < h_max; h += 1) { |
paul@138 | 239 | test_pixel(h, v, 1); |
paul@68 | 240 | } |
paul@68 | 241 | } |
paul@68 | 242 | } |
paul@68 | 243 | |
paul@221 | 244 | void lcd_clear(uint32_t lcd_base) |
paul@68 | 245 | { |
paul@221 | 246 | uint16_t v_max = panel_info.jz_fb->h; |
paul@221 | 247 | uint16_t h_max = panel_info.jz_fb->w; |
paul@221 | 248 | uint16_t v, h; |
paul@221 | 249 | uint32_t *pix = (uint32_t *)lcd_base; |
paul@15 | 250 | |
paul@22 | 251 | for (v = 0; v < v_max; v += 1) { |
paul@22 | 252 | for (h = 0; h < h_max; h += 1) { |
paul@68 | 253 | *pix++ = 0; |
paul@15 | 254 | } |
paul@15 | 255 | } |
paul@15 | 256 | } |
paul@15 | 257 | |
paul@15 | 258 | /* LCD initialisation. */ |
paul@15 | 259 | |
paul@195 | 260 | void lcd_init() |
paul@15 | 261 | { |
paul@20 | 262 | __lcd_display_pin_init(); |
paul@20 | 263 | __lcd_display_on(); |
paul@20 | 264 | |
paul@221 | 265 | /* Initialise the member here since the address is otherwise invalid. */ |
paul@221 | 266 | |
paul@221 | 267 | panel_info.jz_fb = (struct jzfb_info *) ((uint32_t) &jzfb & ~0x80000000); |
paul@221 | 268 | |
paul@97 | 269 | lcd_base = lcd_ctrl_init(); |
paul@15 | 270 | lcd_clear(lcd_base); |
paul@15 | 271 | lcd_enable(); |
paul@15 | 272 | } |