X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=drivers%2Fvideo%2Fexynos_fb.c;h=7d4c6e092df53c7ba339036e0701af9aa6894beb;hb=3765b3e7bd0f8e46914d417f29cbcb0c72b1acf7;hp=92be4ead36c582e7d0b1d01651780f3f4da33c12;hpb=fedab338f3459315cb69627fcf46032ec8df1753;p=platform%2Fkernel%2Fu-boot.git diff --git a/drivers/video/exynos_fb.c b/drivers/video/exynos_fb.c index 92be4ea..7d4c6e0 100644 --- a/drivers/video/exynos_fb.c +++ b/drivers/video/exynos_fb.c @@ -4,48 +4,42 @@ * Author: InKi Dae * Author: Donghwa Lee * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * SPDX-License-Identifier: GPL-2.0+ */ #include #include #include +#include +#include #include #include #include #include #include +#include #include +#include #include "exynos_fb.h" -int lcd_line_length; -int lcd_color_fg; -int lcd_color_bg; - -void *lcd_base; -void *lcd_console_address; - -short console_col; -short console_row; +DECLARE_GLOBAL_DATA_PTR; static unsigned int panel_width, panel_height; -/* LCD Panel data */ -vidinfo_t panel_info; +/* + * board_init_f(arch/arm/lib/board.c) calls lcd_setmem() which needs + * panel_info.vl_col, panel_info.vl_row and panel_info.vl_bpix to reserve + * FB memory at a very early stage, i.e even before exynos_fimd_parse_dt() + * is called. So, we are forced to statically assign it. + */ +#ifdef CONFIG_OF_CONTROL +vidinfo_t panel_info = { + .vl_col = LCD_XRES, + .vl_row = LCD_YRES, + .vl_bpix = LCD_COLOR16, +}; +#endif static void exynos_lcd_init_mem(void *lcdbase, vidinfo_t *vid) { @@ -54,72 +48,268 @@ static void exynos_lcd_init_mem(void *lcdbase, vidinfo_t *vid) fb_size = vid->vl_row * vid->vl_col * (NBITS(vid->vl_bpix) >> 3); - lcd_base = lcdbase; - palette_size = NBITS(vid->vl_bpix) == 8 ? 256 : 16; - exynos_fimd_lcd_init_mem((unsigned long)lcd_base, + exynos_fimd_lcd_init_mem((unsigned long)lcdbase, (unsigned long)fb_size, palette_size); } static void exynos_lcd_init(vidinfo_t *vid) { exynos_fimd_lcd_init(vid); + + /* Enable flushing after LCD writes if requested */ + lcd_set_flush_dcache(1); } +#ifdef CONFIG_CMD_BMP static void draw_logo(void) { int x, y; ulong addr; - x = ((panel_width - panel_info.logo_width) >> 1); - y = ((panel_height - panel_info.logo_height) >> 1) - 4; + if (panel_width >= panel_info.logo_width) { + x = ((panel_width - panel_info.logo_width) >> 1); + } else { + x = 0; + printf("Warning: image width is bigger than display width\n"); + } + + if (panel_height >= panel_info.logo_height) { + y = ((panel_height - panel_info.logo_height) >> 1) - 4; + } else { + y = 0; + printf("Warning: image height is bigger than display height\n"); + } addr = panel_info.logo_addr; bmp_display(addr, x, y); } +#endif + +void __exynos_cfg_lcd_gpio(void) +{ +} +void exynos_cfg_lcd_gpio(void) + __attribute__((weak, alias("__exynos_cfg_lcd_gpio"))); + +void __exynos_backlight_on(unsigned int onoff) +{ +} +void exynos_backlight_on(unsigned int onoff) + __attribute__((weak, alias("__exynos_cfg_lcd_gpio"))); + +void __exynos_reset_lcd(void) +{ +} +void exynos_reset_lcd(void) + __attribute__((weak, alias("__exynos_reset_lcd"))); + +void __exynos_lcd_power_on(void) +{ +} +void exynos_lcd_power_on(void) + __attribute__((weak, alias("__exynos_lcd_power_on"))); + +void __exynos_cfg_ldo(void) +{ +} +void exynos_cfg_ldo(void) + __attribute__((weak, alias("__exynos_cfg_ldo"))); + +void __exynos_enable_ldo(unsigned int onoff) +{ +} +void exynos_enable_ldo(unsigned int onoff) + __attribute__((weak, alias("__exynos_enable_ldo"))); + +void __exynos_backlight_reset(void) +{ +} +void exynos_backlight_reset(void) + __attribute__((weak, alias("__exynos_backlight_reset"))); static void lcd_panel_on(vidinfo_t *vid) { udelay(vid->init_delay); - if (vid->backlight_reset) - vid->backlight_reset(); + exynos_backlight_reset(); - if (vid->cfg_gpio) - vid->cfg_gpio(); + exynos_cfg_lcd_gpio(); - if (vid->lcd_power_on) - vid->lcd_power_on(); + exynos_lcd_power_on(); udelay(vid->power_on_delay); - if (vid->reset_lcd) { - vid->reset_lcd(); - udelay(vid->reset_delay); - } + if (vid->dp_enabled) + exynos_init_dp(); - if (vid->backlight_on) - vid->backlight_on(1); + exynos_reset_lcd(); - if (vid->cfg_ldo) - vid->cfg_ldo(); + udelay(vid->reset_delay); - if (vid->enable_ldo) - vid->enable_ldo(1); + exynos_backlight_on(1); + + exynos_cfg_ldo(); + + exynos_enable_ldo(1); if (vid->mipi_enabled) exynos_mipi_dsi_init(); } +#ifdef CONFIG_OF_CONTROL +int exynos_fimd_parse_dt(const void *blob) +{ + unsigned int node; + node = fdtdec_next_compatible(blob, 0, COMPAT_SAMSUNG_EXYNOS_FIMD); + if (node <= 0) { + debug("exynos_fb: Can't get device node for fimd\n"); + return -ENODEV; + } + + panel_info.vl_col = fdtdec_get_int(blob, node, "samsung,vl-col", 0); + if (panel_info.vl_col == 0) { + debug("Can't get XRES\n"); + return -ENXIO; + } + + panel_info.vl_row = fdtdec_get_int(blob, node, "samsung,vl-row", 0); + if (panel_info.vl_row == 0) { + debug("Can't get YRES\n"); + return -ENXIO; + } + + panel_info.vl_width = fdtdec_get_int(blob, node, + "samsung,vl-width", 0); + + panel_info.vl_height = fdtdec_get_int(blob, node, + "samsung,vl-height", 0); + + panel_info.vl_freq = fdtdec_get_int(blob, node, "samsung,vl-freq", 0); + if (panel_info.vl_freq == 0) { + debug("Can't get refresh rate\n"); + return -ENXIO; + } + + if (fdtdec_get_bool(blob, node, "samsung,vl-clkp")) + panel_info.vl_clkp = CONFIG_SYS_LOW; + + if (fdtdec_get_bool(blob, node, "samsung,vl-oep")) + panel_info.vl_oep = CONFIG_SYS_LOW; + + if (fdtdec_get_bool(blob, node, "samsung,vl-hsp")) + panel_info.vl_hsp = CONFIG_SYS_LOW; + + if (fdtdec_get_bool(blob, node, "samsung,vl-vsp")) + panel_info.vl_vsp = CONFIG_SYS_LOW; + + if (fdtdec_get_bool(blob, node, "samsung,vl-dp")) + panel_info.vl_dp = CONFIG_SYS_LOW; + + panel_info.vl_bpix = fdtdec_get_int(blob, node, "samsung,vl-bpix", 0); + if (panel_info.vl_bpix == 0) { + debug("Can't get bits per pixel\n"); + return -ENXIO; + } + + panel_info.vl_hspw = fdtdec_get_int(blob, node, "samsung,vl-hspw", 0); + if (panel_info.vl_hspw == 0) { + debug("Can't get hsync width\n"); + return -ENXIO; + } + + panel_info.vl_hfpd = fdtdec_get_int(blob, node, "samsung,vl-hfpd", 0); + if (panel_info.vl_hfpd == 0) { + debug("Can't get right margin\n"); + return -ENXIO; + } + + panel_info.vl_hbpd = (u_char)fdtdec_get_int(blob, node, + "samsung,vl-hbpd", 0); + if (panel_info.vl_hbpd == 0) { + debug("Can't get left margin\n"); + return -ENXIO; + } + + panel_info.vl_vspw = (u_char)fdtdec_get_int(blob, node, + "samsung,vl-vspw", 0); + if (panel_info.vl_vspw == 0) { + debug("Can't get vsync width\n"); + return -ENXIO; + } + + panel_info.vl_vfpd = fdtdec_get_int(blob, node, + "samsung,vl-vfpd", 0); + if (panel_info.vl_vfpd == 0) { + debug("Can't get lower margin\n"); + return -ENXIO; + } + + panel_info.vl_vbpd = fdtdec_get_int(blob, node, "samsung,vl-vbpd", 0); + if (panel_info.vl_vbpd == 0) { + debug("Can't get upper margin\n"); + return -ENXIO; + } + + panel_info.vl_cmd_allow_len = fdtdec_get_int(blob, node, + "samsung,vl-cmd-allow-len", 0); + + panel_info.win_id = fdtdec_get_int(blob, node, "samsung,winid", 0); + panel_info.init_delay = fdtdec_get_int(blob, node, + "samsung,init-delay", 0); + panel_info.power_on_delay = fdtdec_get_int(blob, node, + "samsung,power-on-delay", 0); + panel_info.reset_delay = fdtdec_get_int(blob, node, + "samsung,reset-delay", 0); + panel_info.interface_mode = fdtdec_get_int(blob, node, + "samsung,interface-mode", 0); + panel_info.mipi_enabled = fdtdec_get_int(blob, node, + "samsung,mipi-enabled", 0); + panel_info.dp_enabled = fdtdec_get_int(blob, node, + "samsung,dp-enabled", 0); + panel_info.cs_setup = fdtdec_get_int(blob, node, + "samsung,cs-setup", 0); + panel_info.wr_setup = fdtdec_get_int(blob, node, + "samsung,wr-setup", 0); + panel_info.wr_act = fdtdec_get_int(blob, node, "samsung,wr-act", 0); + panel_info.wr_hold = fdtdec_get_int(blob, node, "samsung,wr-hold", 0); + + panel_info.logo_on = fdtdec_get_int(blob, node, "samsung,logo-on", 0); + if (panel_info.logo_on) { + panel_info.logo_width = fdtdec_get_int(blob, node, + "samsung,logo-width", 0); + panel_info.logo_height = fdtdec_get_int(blob, node, + "samsung,logo-height", 0); + panel_info.logo_addr = fdtdec_get_int(blob, node, + "samsung,logo-addr", 0); + } + + panel_info.rgb_mode = fdtdec_get_int(blob, node, + "samsung,rgb-mode", 0); + panel_info.pclk_name = fdtdec_get_int(blob, node, + "samsung,pclk-name", 0); + panel_info.sclk_div = fdtdec_get_int(blob, node, + "samsung,sclk-div", 0); + panel_info.dual_lcd_enabled = fdtdec_get_int(blob, node, + "samsung,dual-lcd-enabled", 0); + + return 0; +} +#endif + void lcd_ctrl_init(void *lcdbase) { set_system_display_ctrl(); set_lcd_clk(); +#ifdef CONFIG_OF_CONTROL + if (exynos_fimd_parse_dt(gd->fdt_blob)) + debug("Can't get proper panel info\n"); +#else /* initialize parameters which is specific to panel. */ init_panel_info(&panel_info); - +#endif panel_width = panel_info.vl_width; panel_height = panel_info.vl_height; @@ -131,10 +321,11 @@ void lcd_ctrl_init(void *lcdbase) void lcd_enable(void) { if (panel_info.logo_on) { - memset(lcd_base, 0, panel_width * panel_height * + memset((void *) gd->fb_base, 0, panel_width * panel_height * (NBITS(panel_info.vl_bpix) >> 3)); - +#ifdef CONFIG_CMD_BMP draw_logo(); +#endif } lcd_panel_on(&panel_info);