uboot/drivers/video/omap3_dss.c
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   1/*
   2 * (C) Copyright 2010
   3 * Texas Instruments, <www.ti.com>
   4 * Syed Mohammed Khasim <khasim@ti.com>
   5 *
   6 * Referred to Linux Kernel DSS driver files for OMAP3 by
   7 * Tomi Valkeinen from drivers/video/omap2/dss/
   8 *
   9 * See file CREDITS for list of people who contributed to this
  10 * project.
  11 *
  12 * This program is free software; you can redistribute it and/or
  13 * modify it under the terms of the GNU General Public License as
  14 * published by the Free Software Foundation's version 2 and any
  15 * later version the License.
  16 *
  17 * This program is distributed in the hope that it will be useful,
  18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 * GNU General Public License for more details.
  21 *
  22 * You should have received a copy of the GNU General Public License
  23 * along with this program; if not, write to the Free Software
  24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  25 * MA 02111-1307 USA
  26 */
  27
  28#include <common.h>
  29#include <asm/io.h>
  30#include <asm/arch/dss.h>
  31#include <video_fb.h>
  32
  33/* Configure VENC for a given Mode (NTSC / PAL) */
  34void omap3_dss_venc_config(const struct venc_regs *venc_cfg,
  35                                u32 height, u32 width)
  36{
  37        struct venc_regs *venc = (struct venc_regs *) OMAP3_VENC_BASE;
  38        struct dss_regs *dss = (struct dss_regs *) OMAP3_DSS_BASE;
  39        struct dispc_regs *dispc = (struct dispc_regs *) OMAP3_DISPC_BASE;
  40
  41        writel(venc_cfg->status, &venc->status);
  42        writel(venc_cfg->f_control, &venc->f_control);
  43        writel(venc_cfg->vidout_ctrl, &venc->vidout_ctrl);
  44        writel(venc_cfg->sync_ctrl, &venc->sync_ctrl);
  45        writel(venc_cfg->llen, &venc->llen);
  46        writel(venc_cfg->flens, &venc->flens);
  47        writel(venc_cfg->hfltr_ctrl, &venc->hfltr_ctrl);
  48        writel(venc_cfg->cc_carr_wss_carr, &venc->cc_carr_wss_carr);
  49        writel(venc_cfg->c_phase, &venc->c_phase);
  50        writel(venc_cfg->gain_u, &venc->gain_u);
  51        writel(venc_cfg->gain_v, &venc->gain_v);
  52        writel(venc_cfg->gain_y, &venc->gain_y);
  53        writel(venc_cfg->black_level, &venc->black_level);
  54        writel(venc_cfg->blank_level, &venc->blank_level);
  55        writel(venc_cfg->x_color, &venc->x_color);
  56        writel(venc_cfg->m_control, &venc->m_control);
  57        writel(venc_cfg->bstamp_wss_data, &venc->bstamp_wss_data);
  58        writel(venc_cfg->s_carr, &venc->s_carr);
  59        writel(venc_cfg->line21, &venc->line21);
  60        writel(venc_cfg->ln_sel, &venc->ln_sel);
  61        writel(venc_cfg->l21__wc_ctl, &venc->l21__wc_ctl);
  62        writel(venc_cfg->htrigger_vtrigger, &venc->htrigger_vtrigger);
  63        writel(venc_cfg->savid__eavid, &venc->savid__eavid);
  64        writel(venc_cfg->flen__fal, &venc->flen__fal);
  65        writel(venc_cfg->lal__phase_reset, &venc->lal__phase_reset);
  66        writel(venc_cfg->hs_int_start_stop_x, &venc->hs_int_start_stop_x);
  67        writel(venc_cfg->hs_ext_start_stop_x, &venc->hs_ext_start_stop_x);
  68        writel(venc_cfg->vs_int_start_x, &venc->vs_int_start_x);
  69        writel(venc_cfg->vs_int_stop_x__vs_int_start_y,
  70                        &venc->vs_int_stop_x__vs_int_start_y);
  71        writel(venc_cfg->vs_int_stop_y__vs_ext_start_x,
  72                        &venc->vs_int_stop_y__vs_ext_start_x);
  73        writel(venc_cfg->vs_ext_stop_x__vs_ext_start_y,
  74                        &venc->vs_ext_stop_x__vs_ext_start_y);
  75        writel(venc_cfg->vs_ext_stop_y, &venc->vs_ext_stop_y);
  76        writel(venc_cfg->avid_start_stop_x, &venc->avid_start_stop_x);
  77        writel(venc_cfg->avid_start_stop_y, &venc->avid_start_stop_y);
  78        writel(venc_cfg->fid_int_start_x__fid_int_start_y,
  79                                &venc->fid_int_start_x__fid_int_start_y);
  80        writel(venc_cfg->fid_int_offset_y__fid_ext_start_x,
  81                                &venc->fid_int_offset_y__fid_ext_start_x);
  82        writel(venc_cfg->fid_ext_start_y__fid_ext_offset_y,
  83                                &venc->fid_ext_start_y__fid_ext_offset_y);
  84        writel(venc_cfg->tvdetgp_int_start_stop_x,
  85                                &venc->tvdetgp_int_start_stop_x);
  86        writel(venc_cfg->tvdetgp_int_start_stop_y,
  87                                &venc->tvdetgp_int_start_stop_y);
  88        writel(venc_cfg->gen_ctrl, &venc->gen_ctrl);
  89        writel(venc_cfg->output_control, &venc->output_control);
  90        writel(venc_cfg->dac_b__dac_c, &venc->dac_b__dac_c);
  91
  92        /* Configure DSS for VENC Settings */
  93        writel(VENC_CLK_ENABLE | DAC_DEMEN | DAC_POWERDN | VENC_OUT_SEL,
  94                        &dss->control);
  95
  96        /* Configure height and width for Digital out */
  97        writel(height << DIG_LPP_SHIFT | width, &dispc->size_dig);
  98}
  99
 100/* Configure Panel Specific Parameters */
 101void omap3_dss_panel_config(const struct panel_config *panel_cfg)
 102{
 103        struct dispc_regs *dispc = (struct dispc_regs *) OMAP3_DISPC_BASE;
 104        struct dss_regs *dss = (struct dss_regs *) OMAP3_DSS_BASE;
 105
 106        writel(DSS_SOFTRESET, &dss->sysconfig);
 107        while (!(readl(&dss->sysstatus) & DSS_RESETDONE))
 108                ;
 109
 110        writel(panel_cfg->timing_h, &dispc->timing_h);
 111        writel(panel_cfg->timing_v, &dispc->timing_v);
 112        writel(panel_cfg->pol_freq, &dispc->pol_freq);
 113        writel(panel_cfg->divisor, &dispc->divisor);
 114        writel(panel_cfg->lcd_size, &dispc->size_lcd);
 115        writel(panel_cfg->load_mode << LOADMODE_SHIFT, &dispc->config);
 116        writel(panel_cfg->panel_type << TFTSTN_SHIFT |
 117                panel_cfg->data_lines << DATALINES_SHIFT, &dispc->control);
 118        writel(panel_cfg->panel_color, &dispc->default_color0);
 119        writel((u32) panel_cfg->frame_buffer, &dispc->gfx_ba0);
 120
 121        if (!panel_cfg->frame_buffer)
 122                return;
 123
 124        writel(panel_cfg->gfx_format | GFX_ENABLE, &dispc->gfx_attributes);
 125        writel(1, &dispc->gfx_row_inc);
 126        writel(1, &dispc->gfx_pixel_inc);
 127        writel(panel_cfg->lcd_size, &dispc->gfx_size);
 128}
 129
 130/* Enable LCD and DIGITAL OUT in DSS */
 131void omap3_dss_enable(void)
 132{
 133        struct dispc_regs *dispc = (struct dispc_regs *) OMAP3_DISPC_BASE;
 134        u32 l;
 135
 136        l = readl(&dispc->control);
 137        l |= LCD_ENABLE | GO_LCD | DIG_ENABLE | GO_DIG | GP_OUT0 | GP_OUT1;
 138        writel(l, &dispc->control);
 139}
 140
 141#ifdef CONFIG_CFB_CONSOLE
 142int __board_video_init(void)
 143{
 144        return -1;
 145}
 146
 147int board_video_init(void)
 148                        __attribute__((weak, alias("__board_video_init")));
 149
 150void *video_hw_init(void)
 151{
 152        static GraphicDevice dssfb;
 153        GraphicDevice *pGD = &dssfb;
 154        struct dispc_regs *dispc = (struct dispc_regs *) OMAP3_DISPC_BASE;
 155
 156        if (board_video_init() || !readl(&dispc->gfx_ba0))
 157                return NULL;
 158
 159        pGD->winSizeX = (readl(&dispc->size_lcd) & 0x7FF) + 1;
 160        pGD->winSizeY = ((readl(&dispc->size_lcd) >> 16) & 0x7FF) + 1;
 161        pGD->gdfBytesPP = 4;
 162        pGD->gdfIndex = GDF_32BIT_X888RGB;
 163        pGD->frameAdrs = readl(&dispc->gfx_ba0);
 164
 165        return pGD;
 166}
 167#endif
 168