lcd.h 12 KB

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  1. /*
  2. * MPC823 and PXA LCD Controller
  3. *
  4. * Modeled after video interface by Paolo Scaffardi
  5. *
  6. *
  7. * (C) Copyright 2001
  8. * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  9. *
  10. * SPDX-License-Identifier: GPL-2.0+
  11. */
  12. #ifndef _LCD_H_
  13. #define _LCD_H_
  14. extern char lcd_is_enabled;
  15. extern int lcd_line_length;
  16. extern struct vidinfo panel_info;
  17. void lcd_ctrl_init(void *lcdbase);
  18. void lcd_enable(void);
  19. /* setcolreg used in 8bpp/16bpp; initcolregs used in monochrome */
  20. void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blue);
  21. void lcd_initcolregs(void);
  22. /* gunzip_bmp used if CONFIG_VIDEO_BMP_GZIP */
  23. struct bmp_image *gunzip_bmp(unsigned long addr, unsigned long *lenp,
  24. void **alloc_addr);
  25. int bmp_display(ulong addr, int x, int y);
  26. /**
  27. * Set whether we need to flush the dcache when changing the LCD image. This
  28. * defaults to off.
  29. *
  30. * @param flush non-zero to flush cache after update, 0 to skip
  31. */
  32. void lcd_set_flush_dcache(int flush);
  33. #if defined CONFIG_MPC823
  34. /*
  35. * LCD controller stucture for MPC823 CPU
  36. */
  37. typedef struct vidinfo {
  38. ushort vl_col; /* Number of columns (i.e. 640) */
  39. ushort vl_row; /* Number of rows (i.e. 480) */
  40. ushort vl_width; /* Width of display area in millimeters */
  41. ushort vl_height; /* Height of display area in millimeters */
  42. /* LCD configuration register */
  43. u_char vl_clkp; /* Clock polarity */
  44. u_char vl_oep; /* Output Enable polarity */
  45. u_char vl_hsp; /* Horizontal Sync polarity */
  46. u_char vl_vsp; /* Vertical Sync polarity */
  47. u_char vl_dp; /* Data polarity */
  48. u_char vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8 */
  49. u_char vl_lbw; /* LCD Bus width, 0 = 4, 1 = 8 */
  50. u_char vl_splt; /* Split display, 0 = single-scan, 1 = dual-scan */
  51. u_char vl_clor; /* Color, 0 = mono, 1 = color */
  52. u_char vl_tft; /* 0 = passive, 1 = TFT */
  53. /* Horizontal control register. Timing from data sheet */
  54. ushort vl_wbl; /* Wait between lines */
  55. /* Vertical control register */
  56. u_char vl_vpw; /* Vertical sync pulse width */
  57. u_char vl_lcdac; /* LCD AC timing */
  58. u_char vl_wbf; /* Wait between frames */
  59. } vidinfo_t;
  60. #elif defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
  61. defined CONFIG_CPU_MONAHANS
  62. /*
  63. * PXA LCD DMA descriptor
  64. */
  65. struct pxafb_dma_descriptor {
  66. u_long fdadr; /* Frame descriptor address register */
  67. u_long fsadr; /* Frame source address register */
  68. u_long fidr; /* Frame ID register */
  69. u_long ldcmd; /* Command register */
  70. };
  71. /*
  72. * PXA LCD info
  73. */
  74. struct pxafb_info {
  75. /* Misc registers */
  76. u_long reg_lccr3;
  77. u_long reg_lccr2;
  78. u_long reg_lccr1;
  79. u_long reg_lccr0;
  80. u_long fdadr0;
  81. u_long fdadr1;
  82. /* DMA descriptors */
  83. struct pxafb_dma_descriptor * dmadesc_fblow;
  84. struct pxafb_dma_descriptor * dmadesc_fbhigh;
  85. struct pxafb_dma_descriptor * dmadesc_palette;
  86. u_long screen; /* physical address of frame buffer */
  87. u_long palette; /* physical address of palette memory */
  88. u_int palette_size;
  89. };
  90. /*
  91. * LCD controller stucture for PXA CPU
  92. */
  93. typedef struct vidinfo {
  94. ushort vl_col; /* Number of columns (i.e. 640) */
  95. ushort vl_row; /* Number of rows (i.e. 480) */
  96. ushort vl_width; /* Width of display area in millimeters */
  97. ushort vl_height; /* Height of display area in millimeters */
  98. /* LCD configuration register */
  99. u_char vl_clkp; /* Clock polarity */
  100. u_char vl_oep; /* Output Enable polarity */
  101. u_char vl_hsp; /* Horizontal Sync polarity */
  102. u_char vl_vsp; /* Vertical Sync polarity */
  103. u_char vl_dp; /* Data polarity */
  104. u_char vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */
  105. u_char vl_lbw; /* LCD Bus width, 0 = 4, 1 = 8 */
  106. u_char vl_splt; /* Split display, 0 = single-scan, 1 = dual-scan */
  107. u_char vl_clor; /* Color, 0 = mono, 1 = color */
  108. u_char vl_tft; /* 0 = passive, 1 = TFT */
  109. /* Horizontal control register. Timing from data sheet */
  110. ushort vl_hpw; /* Horz sync pulse width */
  111. u_char vl_blw; /* Wait before of line */
  112. u_char vl_elw; /* Wait end of line */
  113. /* Vertical control register. */
  114. u_char vl_vpw; /* Vertical sync pulse width */
  115. u_char vl_bfw; /* Wait before of frame */
  116. u_char vl_efw; /* Wait end of frame */
  117. /* PXA LCD controller params */
  118. struct pxafb_info pxa;
  119. } vidinfo_t;
  120. #elif defined(CONFIG_ATMEL_LCD) || defined(CONFIG_ATMEL_HLCD)
  121. typedef struct vidinfo {
  122. ushort vl_col; /* Number of columns (i.e. 640) */
  123. ushort vl_row; /* Number of rows (i.e. 480) */
  124. u_long vl_clk; /* pixel clock in ps */
  125. /* LCD configuration register */
  126. u_long vl_sync; /* Horizontal / vertical sync */
  127. u_long vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */
  128. u_long vl_tft; /* 0 = passive, 1 = TFT */
  129. u_long vl_cont_pol_low; /* contrast polarity is low */
  130. u_long vl_clk_pol; /* clock polarity */
  131. /* Horizontal control register. */
  132. u_long vl_hsync_len; /* Length of horizontal sync */
  133. u_long vl_left_margin; /* Time from sync to picture */
  134. u_long vl_right_margin; /* Time from picture to sync */
  135. /* Vertical control register. */
  136. u_long vl_vsync_len; /* Length of vertical sync */
  137. u_long vl_upper_margin; /* Time from sync to picture */
  138. u_long vl_lower_margin; /* Time from picture to sync */
  139. u_long mmio; /* Memory mapped registers */
  140. } vidinfo_t;
  141. #elif defined(CONFIG_EXYNOS_FB)
  142. enum {
  143. FIMD_RGB_INTERFACE = 1,
  144. FIMD_CPU_INTERFACE = 2,
  145. };
  146. enum exynos_fb_rgb_mode_t {
  147. MODE_RGB_P = 0,
  148. MODE_BGR_P = 1,
  149. MODE_RGB_S = 2,
  150. MODE_BGR_S = 3,
  151. };
  152. typedef struct vidinfo {
  153. ushort vl_col; /* Number of columns (i.e. 640) */
  154. ushort vl_row; /* Number of rows (i.e. 480) */
  155. ushort vl_width; /* Width of display area in millimeters */
  156. ushort vl_height; /* Height of display area in millimeters */
  157. /* LCD configuration register */
  158. u_char vl_freq; /* Frequency */
  159. u_char vl_clkp; /* Clock polarity */
  160. u_char vl_oep; /* Output Enable polarity */
  161. u_char vl_hsp; /* Horizontal Sync polarity */
  162. u_char vl_vsp; /* Vertical Sync polarity */
  163. u_char vl_dp; /* Data polarity */
  164. u_char vl_bpix; /* Bits per pixel */
  165. /* Horizontal control register. Timing from data sheet */
  166. u_char vl_hspw; /* Horz sync pulse width */
  167. u_char vl_hfpd; /* Wait before of line */
  168. u_char vl_hbpd; /* Wait end of line */
  169. /* Vertical control register. */
  170. u_char vl_vspw; /* Vertical sync pulse width */
  171. u_char vl_vfpd; /* Wait before of frame */
  172. u_char vl_vbpd; /* Wait end of frame */
  173. u_char vl_cmd_allow_len; /* Wait end of frame */
  174. unsigned int win_id;
  175. unsigned int init_delay;
  176. unsigned int power_on_delay;
  177. unsigned int reset_delay;
  178. unsigned int interface_mode;
  179. unsigned int mipi_enabled;
  180. unsigned int dp_enabled;
  181. unsigned int cs_setup;
  182. unsigned int wr_setup;
  183. unsigned int wr_act;
  184. unsigned int wr_hold;
  185. unsigned int logo_on;
  186. unsigned int logo_width;
  187. unsigned int logo_height;
  188. int logo_x_offset;
  189. int logo_y_offset;
  190. unsigned long logo_addr;
  191. unsigned int rgb_mode;
  192. unsigned int resolution;
  193. /* parent clock name(MPLL, EPLL or VPLL) */
  194. unsigned int pclk_name;
  195. /* ratio value for source clock from parent clock. */
  196. unsigned int sclk_div;
  197. unsigned int dual_lcd_enabled;
  198. } vidinfo_t;
  199. void init_panel_info(vidinfo_t *vid);
  200. #else
  201. typedef struct vidinfo {
  202. ushort vl_col; /* Number of columns (i.e. 160) */
  203. ushort vl_row; /* Number of rows (i.e. 100) */
  204. u_char vl_bpix; /* Bits per pixel, 0 = 1 */
  205. ushort *cmap; /* Pointer to the colormap */
  206. void *priv; /* Pointer to driver-specific data */
  207. } vidinfo_t;
  208. #endif /* CONFIG_MPC823, CONFIG_CPU_PXA25X, CONFIG_ATMEL_LCD */
  209. extern vidinfo_t panel_info;
  210. /* Video functions */
  211. void lcd_putc(const char c);
  212. void lcd_puts(const char *s);
  213. void lcd_printf(const char *fmt, ...);
  214. void lcd_clear(void);
  215. int lcd_display_bitmap(ulong bmp_image, int x, int y);
  216. /**
  217. * Get the width of the LCD in pixels
  218. *
  219. * @return width of LCD in pixels
  220. */
  221. int lcd_get_pixel_width(void);
  222. /**
  223. * Get the height of the LCD in pixels
  224. *
  225. * @return height of LCD in pixels
  226. */
  227. int lcd_get_pixel_height(void);
  228. /**
  229. * Get the number of text lines/rows on the LCD
  230. *
  231. * @return number of rows
  232. */
  233. int lcd_get_screen_rows(void);
  234. /**
  235. * Get the number of text columns on the LCD
  236. *
  237. * @return number of columns
  238. */
  239. int lcd_get_screen_columns(void);
  240. /**
  241. * Set the position of the text cursor
  242. *
  243. * @param col Column to place cursor (0 = left side)
  244. * @param row Row to place cursor (0 = top line)
  245. */
  246. void lcd_position_cursor(unsigned col, unsigned row);
  247. /* Allow boards to customize the information displayed */
  248. void lcd_show_board_info(void);
  249. /* Return the size of the LCD frame buffer, and the line length */
  250. int lcd_get_size(int *line_length);
  251. int lcd_dt_simplefb_add_node(void *blob);
  252. int lcd_dt_simplefb_enable_existing_node(void *blob);
  253. /* Update the LCD / flush the cache */
  254. void lcd_sync(void);
  255. /************************************************************************/
  256. /* ** BITMAP DISPLAY SUPPORT */
  257. /************************************************************************/
  258. #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
  259. # include <bmp_layout.h>
  260. # include <asm/byteorder.h>
  261. #endif
  262. /*
  263. * Information about displays we are using. This is for configuring
  264. * the LCD controller and memory allocation. Someone has to know what
  265. * is connected, as we can't autodetect anything.
  266. */
  267. #define CONFIG_SYS_HIGH 0 /* Pins are active high */
  268. #define CONFIG_SYS_LOW 1 /* Pins are active low */
  269. #define LCD_MONOCHROME 0
  270. #define LCD_COLOR2 1
  271. #define LCD_COLOR4 2
  272. #define LCD_COLOR8 3
  273. #define LCD_COLOR16 4
  274. #define LCD_COLOR32 5
  275. /*----------------------------------------------------------------------*/
  276. #if defined(CONFIG_LCD_INFO_BELOW_LOGO)
  277. # define LCD_INFO_X 0
  278. # define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT)
  279. #elif defined(CONFIG_LCD_LOGO)
  280. # define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH)
  281. # define LCD_INFO_Y VIDEO_FONT_HEIGHT
  282. #else
  283. # define LCD_INFO_X VIDEO_FONT_WIDTH
  284. # define LCD_INFO_Y VIDEO_FONT_HEIGHT
  285. #endif
  286. /* Default to 8bpp if bit depth not specified */
  287. #ifndef LCD_BPP
  288. # define LCD_BPP LCD_COLOR8
  289. #endif
  290. #ifndef LCD_DF
  291. # define LCD_DF 1
  292. #endif
  293. /* Calculate nr. of bits per pixel and nr. of colors */
  294. #define NBITS(bit_code) (1 << (bit_code))
  295. #define NCOLORS(bit_code) (1 << NBITS(bit_code))
  296. /************************************************************************/
  297. /* ** CONSOLE CONSTANTS */
  298. /************************************************************************/
  299. #if LCD_BPP == LCD_MONOCHROME
  300. /*
  301. * Simple black/white definitions
  302. */
  303. # define CONSOLE_COLOR_BLACK 0
  304. # define CONSOLE_COLOR_WHITE 1 /* Must remain last / highest */
  305. #elif LCD_BPP == LCD_COLOR8
  306. /*
  307. * 8bpp color definitions
  308. */
  309. # define CONSOLE_COLOR_BLACK 0
  310. # define CONSOLE_COLOR_RED 1
  311. # define CONSOLE_COLOR_GREEN 2
  312. # define CONSOLE_COLOR_YELLOW 3
  313. # define CONSOLE_COLOR_BLUE 4
  314. # define CONSOLE_COLOR_MAGENTA 5
  315. # define CONSOLE_COLOR_CYAN 6
  316. # define CONSOLE_COLOR_GREY 14
  317. # define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */
  318. #elif LCD_BPP == LCD_COLOR32
  319. /*
  320. * 32bpp color definitions
  321. */
  322. # define CONSOLE_COLOR_RED 0x00ff0000
  323. # define CONSOLE_COLOR_GREEN 0x0000ff00
  324. # define CONSOLE_COLOR_YELLOW 0x00ffff00
  325. # define CONSOLE_COLOR_BLUE 0x000000ff
  326. # define CONSOLE_COLOR_MAGENTA 0x00ff00ff
  327. # define CONSOLE_COLOR_CYAN 0x0000ffff
  328. # define CONSOLE_COLOR_GREY 0x00aaaaaa
  329. # define CONSOLE_COLOR_BLACK 0x00000000
  330. # define CONSOLE_COLOR_WHITE 0x00ffffff /* Must remain last / highest*/
  331. # define NBYTES(bit_code) (NBITS(bit_code) >> 3)
  332. #else
  333. /*
  334. * 16bpp color definitions
  335. */
  336. # define CONSOLE_COLOR_BLACK 0x0000
  337. # define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */
  338. #endif /* color definitions */
  339. /************************************************************************/
  340. #ifndef PAGE_SIZE
  341. # define PAGE_SIZE 4096
  342. #endif
  343. /************************************************************************/
  344. #endif /* _LCD_H_ */