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@227 | 25 | #include "cpu.h" |
paul@33 | 26 | #include "board.h" |
paul@15 | 27 | |
paul@40 | 28 | extern vidinfo_t panel_info; |
paul@221 | 29 | static uint32_t lcd_base; |
paul@68 | 30 | |
paul@227 | 31 | |
paul@227 | 32 | |
paul@221 | 33 | static uint16_t get_line_length() |
paul@100 | 34 | { |
paul@221 | 35 | return ALIGN((panel_info.jz_fb->w * panel_info.jz_fb->bpp) / 8, sizeof(uint32_t)); |
paul@100 | 36 | } |
paul@100 | 37 | |
paul@221 | 38 | static uint32_t *get_pixel32(uint16_t h, uint16_t v) |
paul@68 | 39 | { |
paul@217 | 40 | return (uint32_t *) (lcd_base + v * get_line_length()) + h; |
paul@100 | 41 | } |
paul@68 | 42 | |
paul@221 | 43 | static uint16_t *get_pixel16(uint16_t h, uint16_t v) |
paul@100 | 44 | { |
paul@217 | 45 | return (uint16_t *) (lcd_base + v * get_line_length()) + h; |
paul@100 | 46 | } |
paul@100 | 47 | |
paul@221 | 48 | static uint8_t *get_pixel8(uint16_t h, uint16_t v) |
paul@101 | 49 | { |
paul@217 | 50 | return (uint8_t *) (lcd_base + v * get_line_length()) + h; |
paul@101 | 51 | } |
paul@101 | 52 | |
paul@221 | 53 | static uint8_t *get_pixel4(uint16_t h, uint16_t v) |
paul@103 | 54 | { |
paul@217 | 55 | return (uint8_t *) (lcd_base + v * get_line_length()) + h / 2; |
paul@103 | 56 | } |
paul@103 | 57 | |
paul@221 | 58 | static inline uint16_t div(uint16_t num, uint16_t denom, uint16_t scale) |
paul@103 | 59 | { |
paul@103 | 60 | return (scale * num) / denom; |
paul@103 | 61 | } |
paul@103 | 62 | |
paul@217 | 63 | 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 | 64 | { |
paul@104 | 65 | return (div(r, 255, rmax) << rshift) | (div(g, 255, gmax) << gshift) | (div(b, 255, bmax) << bshift); |
paul@104 | 66 | } |
paul@104 | 67 | |
paul@221 | 68 | uint32_t get_bitmap_value(uint16_t x, uint32_t value) |
paul@162 | 69 | { |
paul@221 | 70 | return (value >> (((panel_info.jz_fb->w - 1 - x) * 32) / panel_info.jz_fb->w)) % 2 ? 0xffffffff : 0; |
paul@162 | 71 | } |
paul@162 | 72 | |
paul@221 | 73 | static void get_colour(uint16_t h, uint16_t v, uint8_t rgb[], uint16_t pixel_type) |
paul@100 | 74 | { |
paul@221 | 75 | uint16_t v_max = panel_info.jz_fb->h - 1; |
paul@221 | 76 | uint16_t h_max = panel_info.jz_fb->w - 1; |
paul@100 | 77 | |
paul@138 | 78 | rgb[(pixel_type - 1) % 3] = div(h, h_max, 255); |
paul@138 | 79 | rgb[pixel_type % 3] = div(v, v_max, 255); |
paul@138 | 80 | rgb[(pixel_type + 1) % 3] = (rgb[0] + rgb[1]) / 2; |
paul@101 | 81 | } |
paul@101 | 82 | |
paul@221 | 83 | static void set_pixel32(uint16_t h, uint16_t v, uint32_t value) |
paul@161 | 84 | { |
paul@217 | 85 | uint32_t *pix = get_pixel32(h, v); |
paul@161 | 86 | *pix = value; |
paul@161 | 87 | } |
paul@161 | 88 | |
paul@221 | 89 | static void set_pixel16_565(uint16_t h, uint16_t v, uint32_t value) |
paul@161 | 90 | { |
paul@217 | 91 | uint16_t *pix = get_pixel16(h, v); |
paul@217 | 92 | *pix = (uint16_t) value; |
paul@161 | 93 | } |
paul@161 | 94 | |
paul@221 | 95 | static void set_pixel8(uint16_t h, uint16_t v, uint32_t value) |
paul@161 | 96 | { |
paul@217 | 97 | uint8_t *pix = get_pixel8(h, v); |
paul@217 | 98 | *pix = (uint8_t) value; |
paul@161 | 99 | } |
paul@161 | 100 | |
paul@221 | 101 | static void set_pixel4(uint16_t h, uint16_t v, uint32_t value) |
paul@161 | 102 | { |
paul@217 | 103 | uint8_t *pix = get_pixel4(h, v); |
paul@217 | 104 | uint8_t mask = h & 1 ? 0xf0 : 0x0f; |
paul@217 | 105 | *pix = (*pix & mask) | ((uint8_t) value); |
paul@161 | 106 | } |
paul@161 | 107 | |
paul@221 | 108 | void set_pixel(uint16_t h, uint16_t v, uint32_t value) |
paul@161 | 109 | { |
paul@221 | 110 | switch (panel_info.jz_fb->bpp) |
paul@161 | 111 | { |
paul@221 | 112 | case 32: |
paul@161 | 113 | set_pixel32(h, v, value); |
paul@161 | 114 | break; |
paul@161 | 115 | |
paul@221 | 116 | case 8: |
paul@161 | 117 | set_pixel8(h, v, value); |
paul@161 | 118 | break; |
paul@161 | 119 | |
paul@221 | 120 | case 4: |
paul@161 | 121 | set_pixel4(h, v, value); |
paul@161 | 122 | break; |
paul@161 | 123 | |
paul@221 | 124 | case 16: |
paul@161 | 125 | default: |
paul@161 | 126 | set_pixel16_565(h, v, value); |
paul@161 | 127 | break; |
paul@161 | 128 | } |
paul@161 | 129 | } |
paul@221 | 130 | static void test_pixel32(uint16_t h, uint16_t v, uint16_t pixel_type) |
paul@101 | 131 | { |
paul@217 | 132 | uint8_t rgb[3]; |
paul@104 | 133 | |
paul@138 | 134 | get_colour(h, v, rgb, pixel_type); |
paul@162 | 135 | 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 | 136 | } |
paul@100 | 137 | |
paul@221 | 138 | static void test_pixel16_565(uint16_t h, uint16_t v, uint16_t pixel_type) |
paul@100 | 139 | { |
paul@217 | 140 | uint8_t rgb[3]; |
paul@104 | 141 | |
paul@138 | 142 | get_colour(h, v, rgb, pixel_type); |
paul@162 | 143 | 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 | 144 | } |
paul@100 | 145 | |
paul@221 | 146 | static void test_pixel8(uint16_t h, uint16_t v, uint16_t pixel_type) |
paul@101 | 147 | { |
paul@217 | 148 | uint8_t rgb[3]; |
paul@104 | 149 | |
paul@138 | 150 | get_colour(h, v, rgb, pixel_type); |
paul@162 | 151 | 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 | 152 | } |
paul@100 | 153 | |
paul@221 | 154 | static void test_pixel4(uint16_t h, uint16_t v, uint16_t pixel_type) |
paul@103 | 155 | { |
paul@217 | 156 | uint8_t rgb[3]; |
paul@104 | 157 | |
paul@138 | 158 | get_colour(h, v, rgb, pixel_type); |
paul@162 | 159 | 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 | 160 | } |
paul@103 | 161 | |
paul@221 | 162 | void test_pixel(uint16_t h, uint16_t v, uint16_t pixel_type) |
paul@100 | 163 | { |
paul@221 | 164 | switch (panel_info.jz_fb->bpp) |
paul@100 | 165 | { |
paul@221 | 166 | case 32: |
paul@138 | 167 | test_pixel32(h, v, pixel_type); |
paul@100 | 168 | break; |
paul@100 | 169 | |
paul@221 | 170 | case 8: |
paul@138 | 171 | test_pixel8(h, v, pixel_type); |
paul@101 | 172 | break; |
paul@101 | 173 | |
paul@221 | 174 | case 4: |
paul@138 | 175 | test_pixel4(h, v, pixel_type); |
paul@103 | 176 | break; |
paul@103 | 177 | |
paul@221 | 178 | case 16: |
paul@100 | 179 | default: |
paul@138 | 180 | test_pixel16_565(h, v, pixel_type); |
paul@100 | 181 | break; |
paul@100 | 182 | } |
paul@100 | 183 | } |
paul@100 | 184 | |
paul@221 | 185 | void clear_pixel32(uint16_t h, uint16_t v) |
paul@100 | 186 | { |
paul@217 | 187 | uint32_t *pix = get_pixel32(h, v); |
paul@100 | 188 | *pix = 0; |
paul@100 | 189 | } |
paul@100 | 190 | |
paul@221 | 191 | void clear_pixel16(uint16_t h, uint16_t v) |
paul@100 | 192 | { |
paul@217 | 193 | uint16_t *pix = get_pixel16(h, v); |
paul@100 | 194 | *pix = 0; |
paul@68 | 195 | } |
paul@68 | 196 | |
paul@221 | 197 | void clear_pixel8(uint16_t h, uint16_t v) |
paul@101 | 198 | { |
paul@217 | 199 | uint8_t *pix = get_pixel8(h, v); |
paul@101 | 200 | *pix = 0; |
paul@101 | 201 | } |
paul@101 | 202 | |
paul@221 | 203 | void clear_pixel4(uint16_t h, uint16_t v) |
paul@103 | 204 | { |
paul@217 | 205 | uint8_t *pix = get_pixel4(h, v); |
paul@217 | 206 | uint8_t mask = h & 1 ? 0xf0 : 0x0f; |
paul@103 | 207 | *pix = *pix & mask; |
paul@103 | 208 | } |
paul@103 | 209 | |
paul@221 | 210 | void clear_pixel(uint16_t h, uint16_t v) |
paul@68 | 211 | { |
paul@221 | 212 | switch (panel_info.jz_fb->bpp) |
paul@100 | 213 | { |
paul@221 | 214 | case 32: |
paul@100 | 215 | clear_pixel32(h, v); |
paul@100 | 216 | break; |
paul@68 | 217 | |
paul@221 | 218 | case 8: |
paul@101 | 219 | clear_pixel8(h, v); |
paul@101 | 220 | break; |
paul@101 | 221 | |
paul@221 | 222 | case 4: |
paul@103 | 223 | clear_pixel4(h, v); |
paul@103 | 224 | break; |
paul@103 | 225 | |
paul@221 | 226 | case 16: |
paul@100 | 227 | default: |
paul@100 | 228 | clear_pixel16(h, v); |
paul@100 | 229 | break; |
paul@100 | 230 | } |
paul@68 | 231 | } |
paul@40 | 232 | |
paul@100 | 233 | void test_pattern() |
paul@15 | 234 | { |
paul@221 | 235 | uint16_t v_max = panel_info.jz_fb->h; |
paul@221 | 236 | uint16_t h_max = panel_info.jz_fb->w; |
paul@221 | 237 | uint16_t v, h; |
paul@68 | 238 | |
paul@68 | 239 | for (v = 0; v < v_max; v += 1) { |
paul@68 | 240 | for (h = 0; h < h_max; h += 1) { |
paul@138 | 241 | test_pixel(h, v, 1); |
paul@68 | 242 | } |
paul@68 | 243 | } |
paul@68 | 244 | } |
paul@68 | 245 | |
paul@221 | 246 | void lcd_clear(uint32_t lcd_base) |
paul@68 | 247 | { |
paul@221 | 248 | uint16_t v_max = panel_info.jz_fb->h; |
paul@221 | 249 | uint16_t h_max = panel_info.jz_fb->w; |
paul@221 | 250 | uint16_t v, h; |
paul@221 | 251 | uint32_t *pix = (uint32_t *)lcd_base; |
paul@15 | 252 | |
paul@22 | 253 | for (v = 0; v < v_max; v += 1) { |
paul@22 | 254 | for (h = 0; h < h_max; h += 1) { |
paul@68 | 255 | *pix++ = 0; |
paul@15 | 256 | } |
paul@15 | 257 | } |
paul@15 | 258 | } |
paul@15 | 259 | |
paul@227 | 260 | |
paul@227 | 261 | |
paul@15 | 262 | /* LCD initialisation. */ |
paul@15 | 263 | |
paul@227 | 264 | #ifdef CONFIG_CPU_JZ4730 |
paul@227 | 265 | void jz4730_set_lcd_frequencies(uint32_t pclk, uint8_t ratio) |
paul@227 | 266 | { |
paul@227 | 267 | uint32_t val; |
paul@227 | 268 | |
paul@227 | 269 | val = __cpm_get_pllout() / pclk; |
paul@227 | 270 | REG_CPM_CFCR2 = val - 1; |
paul@227 | 271 | val = pclk * ratio; |
paul@227 | 272 | |
paul@227 | 273 | if (val > 150000000) { |
paul@227 | 274 | val = 150000000; |
paul@227 | 275 | } |
paul@227 | 276 | |
paul@227 | 277 | val = __cpm_get_pllout() / val; |
paul@227 | 278 | val--; |
paul@227 | 279 | |
paul@227 | 280 | if (val > 0xF) |
paul@227 | 281 | val = 0xF; |
paul@227 | 282 | |
paul@227 | 283 | __cpm_set_ldiv(val); |
paul@227 | 284 | REG_CPM_CPCCR = REG_CPM_CPCCR | CPM_CPCCR_CE; /* update divide */ |
paul@227 | 285 | } |
paul@227 | 286 | #else |
paul@227 | 287 | void jz4740_set_lcd_frequencies(uint32_t pclk, uint8_t ratio) |
paul@227 | 288 | { |
paul@227 | 289 | uint32_t val; |
paul@227 | 290 | int pll_div; |
paul@227 | 291 | |
paul@227 | 292 | pll_div = REG_CPM_CPCCR & CPM_CPCCR_PCS; /* clock source,0:pllout/2 1: pllout */ |
paul@227 | 293 | pll_div = pll_div ? 1 : 2; |
paul@227 | 294 | val = (__cpm_get_pllout() / pll_div) / pclk; |
paul@227 | 295 | val--; |
paul@227 | 296 | |
paul@227 | 297 | if ( val > 0x1ff ) { |
paul@227 | 298 | val = 0x1ff; |
paul@227 | 299 | } |
paul@227 | 300 | |
paul@227 | 301 | __cpm_set_pixdiv(val); |
paul@227 | 302 | |
paul@227 | 303 | val = pclk * ratio; /* LCDClock > 2.5*Pixclock */ |
paul@227 | 304 | |
paul@227 | 305 | if ( val > 150000000 ) { |
paul@227 | 306 | val = 150000000; |
paul@227 | 307 | } |
paul@227 | 308 | |
paul@227 | 309 | val = (__cpm_get_pllout() / pll_div) / val; |
paul@227 | 310 | val--; |
paul@227 | 311 | |
paul@227 | 312 | if (val > 0x1f) |
paul@227 | 313 | val = 0x1f; |
paul@227 | 314 | |
paul@227 | 315 | __cpm_set_ldiv(val); |
paul@227 | 316 | REG_CPM_CPCCR = REG_CPM_CPCCR | CPM_CPCCR_CE; /* update divide */ |
paul@227 | 317 | } |
paul@227 | 318 | #endif |
paul@227 | 319 | |
paul@227 | 320 | void lcd_set_timing(vidinfo_t *vid) |
paul@227 | 321 | { |
paul@227 | 322 | uint32_t pclk = jz4740_lcd_get_pixel_clock(vid); |
paul@227 | 323 | |
paul@227 | 324 | __cpm_stop_lcd(); |
paul@227 | 325 | |
paul@227 | 326 | #ifdef CONFIG_CPU_JZ4730 |
paul@227 | 327 | jz4730_set_lcd_frequencies(pclk, 4); |
paul@227 | 328 | #else |
paul@227 | 329 | jz4740_set_lcd_frequencies(pclk, 3); |
paul@227 | 330 | #endif |
paul@227 | 331 | |
paul@227 | 332 | __cpm_start_lcd(); |
paul@227 | 333 | udelay(1000); |
paul@227 | 334 | } |
paul@227 | 335 | |
paul@227 | 336 | uint32_t lcd_ctrl_init() |
paul@227 | 337 | { |
paul@227 | 338 | vidinfo_t *vid = &panel_info; |
paul@227 | 339 | struct jz_mem_info *fbi = &vid->jz_mem; |
paul@227 | 340 | void *fb_vaddr; |
paul@227 | 341 | |
paul@227 | 342 | /* Start from the top of memory and obtain the framebuffer region. */ |
paul@227 | 343 | |
paul@227 | 344 | fb_vaddr = (void *) (get_memory_size() - jz4740_lcd_get_total_size(vid)); |
paul@227 | 345 | |
paul@227 | 346 | jz4740_lcd_ctrl_init((void *) LCD_BASE_KSEG1, fb_vaddr, vid); |
paul@227 | 347 | flush_cache_all(); |
paul@227 | 348 | jz4740_lcd_hw_init(vid); |
paul@227 | 349 | lcd_set_timing(vid); |
paul@227 | 350 | jz4740_lcd_dma_init(vid); |
paul@227 | 351 | |
paul@227 | 352 | return fbi->screen; |
paul@227 | 353 | } |
paul@227 | 354 | |
paul@195 | 355 | void lcd_init() |
paul@15 | 356 | { |
paul@20 | 357 | __lcd_display_pin_init(); |
paul@20 | 358 | __lcd_display_on(); |
paul@20 | 359 | |
paul@221 | 360 | /* Initialise the member here since the address is otherwise invalid. */ |
paul@221 | 361 | |
paul@222 | 362 | panel_info.jz_fb = (struct jzfb_info *) ((uint32_t) panel_info.jz_fb & ~0x80000000); |
paul@221 | 363 | |
paul@97 | 364 | lcd_base = lcd_ctrl_init(); |
paul@15 | 365 | lcd_clear(lcd_base); |
paul@15 | 366 | lcd_enable(); |
paul@15 | 367 | } |