From: Syed Mohammed Khasim khasim@ti.com
* Supports dynamic panel configuration * Supports dynamic tv standard selection * Adds support for DSS register access through generic APIs * Incorporated DSS register access using structures. * DSS makefile update
Previous discussions are here: http://www.mail-archive.com/u-boot@lists.denx.de/msg27150.html --- v2 updates: * Enable panel output for BeagleBoard * BeagleBoard: Update DVI-D orange screen frequencies for xM
v3 updates: * Remove non-platform (OMAP3) updates
v4 updates: * Addressing fixes for attribution in header: http://lists.denx.de/pipermail/u-boot/2011-August/097976.html
Signed-off-by: Syed Mohammed Khasim khasim@ti.com Signed-off-by: Jason Kridner jkridner@beagleboard.org Signed-off-by: Joel A Fernandes agnel.joel@gmail.com --- arch/arm/include/asm/arch-omap3/dss.h | 174 +++++++++++++++++++++++++++++++++ drivers/video/Makefile | 2 + drivers/video/omap3_dss.c | 131 +++++++++++++++++++++++++ 3 files changed, 307 insertions(+), 0 deletions(-) create mode 100644 arch/arm/include/asm/arch-omap3/dss.h create mode 100644 drivers/video/omap3_dss.c
diff --git a/arch/arm/include/asm/arch-omap3/dss.h b/arch/arm/include/asm/arch-omap3/dss.h new file mode 100644 index 0000000..c09ded8 --- /dev/null +++ b/arch/arm/include/asm/arch-omap3/dss.h @@ -0,0 +1,174 @@ +/* + * (C) Copyright 2010 + * Texas Instruments, <www.ti.com> + * Syed Mohammed Khasim khasim@ti.com + * + * Referred to Linux Kernel DSS driver files for OMAP3 by + * Tomi Valkeinen from drivers/video/omap2/dss/ + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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's version 2 and any + * later version the License. + * + * 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 + */ + +#ifndef DSS_H +#define DSS_H + +/* + * DSS Base Registers + */ +#define OMAP3_DSS_BASE 0x48050040 +#define OMAP3_DISPC_BASE 0x48050440 +#define OMAP3_VENC_BASE 0x48050C00 + +/* DSS Registers */ +struct dss_regs { + u32 control; /* 0x40 */ + u32 sdi_control; /* 0x44 */ + u32 pll_control; /* 0x48 */ +}; + +/* DISPC Registers */ +struct dispc_regs { + u32 control; /* 0x40 */ + u32 config; /* 0x44 */ + u32 reserve_2; /* 0x48 */ + u32 default_color0; /* 0x4C */ + u32 default_color1; /* 0x50 */ + u32 trans_color0; /* 0x54 */ + u32 trans_color1; /* 0x58 */ + u32 line_status; /* 0x5C */ + u32 line_number; /* 0x60 */ + u32 timing_h; /* 0x64 */ + u32 timing_v; /* 0x68 */ + u32 pol_freq; /* 0x6C */ + u32 divisor; /* 0x70 */ + u32 global_alpha; /* 0x74 */ + u32 size_dig; /* 0x78 */ + u32 size_lcd; /* 0x7C */ +}; + +/* VENC Registers */ +struct venc_regs { + u32 rev_id; /* 0x00 */ + u32 status; /* 0x04 */ + u32 f_control; /* 0x08 */ + u32 reserve_1; /* 0x0C */ + u32 vidout_ctrl; /* 0x10 */ + u32 sync_ctrl; /* 0x14 */ + u32 reserve_2; /* 0x18 */ + u32 llen; /* 0x1C */ + u32 flens; /* 0x20 */ + u32 hfltr_ctrl; /* 0x24 */ + u32 cc_carr_wss_carr; /* 0x28 */ + u32 c_phase; /* 0x2C */ + u32 gain_u; /* 0x30 */ + u32 gain_v; /* 0x34 */ + u32 gain_y; /* 0x38 */ + u32 black_level; /* 0x3C */ + u32 blank_level; /* 0x40 */ + u32 x_color; /* 0x44 */ + u32 m_control; /* 0x48 */ + u32 bstamp_wss_data; /* 0x4C */ + u32 s_carr; /* 0x50 */ + u32 line21; /* 0x54 */ + u32 ln_sel; /* 0x58 */ + u32 l21__wc_ctl; /* 0x5C */ + u32 htrigger_vtrigger; /* 0x60 */ + u32 savid__eavid; /* 0x64 */ + u32 flen__fal; /* 0x68 */ + u32 lal__phase_reset; /* 0x6C */ + u32 hs_int_start_stop_x; /* 0x70 */ + u32 hs_ext_start_stop_x; /* 0x74 */ + u32 vs_int_start_x; /* 0x78 */ + u32 vs_int_stop_x__vs_int_start_y; /* 0x7C */ + u32 vs_int_stop_y__vs_ext_start_x; /* 0x80 */ + u32 vs_ext_stop_x__vs_ext_start_y; /* 0x84 */ + u32 vs_ext_stop_y; /* 0x88 */ + u32 reserve_3; /* 0x8C */ + u32 avid_start_stop_x; /* 0x90 */ + u32 avid_start_stop_y; /* 0x94 */ + u32 reserve_4; /* 0x98 */ + u32 reserve_5; /* 0x9C */ + u32 fid_int_start_x__fid_int_start_y; /* 0xA0 */ + u32 fid_int_offset_y__fid_ext_start_x; /* 0xA4 */ + u32 fid_ext_start_y__fid_ext_offset_y; /* 0xA8 */ + u32 reserve_6; /* 0xAC */ + u32 tvdetgp_int_start_stop_x; /* 0xB0 */ + u32 tvdetgp_int_start_stop_y; /* 0xB4 */ + u32 gen_ctrl; /* 0xB8 */ + u32 reserve_7; /* 0xBC */ + u32 reserve_8; /* 0xC0 */ + u32 output_control; /* 0xC4 */ + u32 dac_b__dac_c; /* 0xC8 */ + u32 height_width; /* 0xCC */ +}; + +/* Few Register Offsets */ +#define FRAME_MODE_SHIFT 1 +#define TFTSTN_SHIFT 3 +#define DATALINES_SHIFT 8 + +/* Enabling Display controller */ +#define LCD_ENABLE 1 +#define DIG_ENABLE (1 << 1) +#define GO_LCD (1 << 5) +#define GO_DIG (1 << 6) +#define GP_OUT0 (1 << 15) +#define GP_OUT1 (1 << 16) + +#define DISPC_ENABLE (LCD_ENABLE | \ + DIG_ENABLE | \ + GO_LCD | \ + GO_DIG | \ + GP_OUT0| \ + GP_OUT1) + +/* Configure VENC DSS Params */ +#define VENC_CLK_ENABLE (1 << 3) +#define DAC_DEMEN (1 << 4) +#define DAC_POWERDN (1 << 5) +#define VENC_OUT_SEL (1 << 6) +#define DIG_LPP_SHIFT 16 +#define VENC_DSS_CONFIG (VENC_CLK_ENABLE | \ + DAC_DEMEN | \ + DAC_POWERDN | \ + VENC_OUT_SEL) +/* + * Panel Configuration + */ +struct panel_config { + u32 timing_h; + u32 timing_v; + u32 pol_freq; + u32 divisor; + u32 lcd_size; + u32 panel_type; + u32 data_lines; + u32 load_mode; + u32 panel_color; +}; + +/* + * Generic DSS Functions + */ +void omap3_dss_venc_config(const struct venc_regs *venc_cfg, + u32 height, u32 width); +void omap3_dss_panel_config(const struct panel_config *panel_cfg); +void omap3_dss_enable(void); + +#endif /* DSS_H */ diff --git a/drivers/video/Makefile b/drivers/video/Makefile index 086dc05..226684a 100644 --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -41,6 +41,8 @@ COBJS-$(CONFIG_SED156X) += sed156x.o COBJS-$(CONFIG_VIDEO_SM501) += sm501.o COBJS-$(CONFIG_VIDEO_SMI_LYNXEM) += smiLynxEM.o videomodes.o COBJS-$(CONFIG_VIDEO_VCXK) += bus_vcxk.o +COBJS-$(CONFIG_VIDEO_OMAP3) += omap3_dss.o +COBJS-y += videomodes.o
COBJS := $(COBJS-y) SRCS := $(COBJS:.o=.c) diff --git a/drivers/video/omap3_dss.c b/drivers/video/omap3_dss.c new file mode 100644 index 0000000..6c743d2 --- /dev/null +++ b/drivers/video/omap3_dss.c @@ -0,0 +1,131 @@ +/* + * (C) Copyright 2010 + * Texas Instruments, <www.ti.com> + * Syed Mohammed Khasim khasim@ti.com + * + * Referred to Linux Kernel DSS driver files for OMAP3 by + * Tomi Valkeinen from drivers/video/omap2/dss/ + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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's version 2 and any + * later version the License. + * + * 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 + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/dss.h> + +/* + * Configure VENC for a given Mode (NTSC / PAL) + */ +void omap3_dss_venc_config(const struct venc_regs *venc_cfg, + u32 height, u32 width) +{ + struct venc_regs *venc = (struct venc_regs *) OMAP3_VENC_BASE; + struct dss_regs *dss = (struct dss_regs *) OMAP3_DSS_BASE; + struct dispc_regs *dispc = (struct dispc_regs *) OMAP3_DISPC_BASE; + + writel(venc_cfg->status, &venc->status); + writel(venc_cfg->f_control, &venc->f_control); + writel(venc_cfg->vidout_ctrl, &venc->vidout_ctrl); + writel(venc_cfg->sync_ctrl, &venc->sync_ctrl); + writel(venc_cfg->llen, &venc->llen); + writel(venc_cfg->flens, &venc->flens); + writel(venc_cfg->hfltr_ctrl, &venc->hfltr_ctrl); + writel(venc_cfg->cc_carr_wss_carr, &venc->cc_carr_wss_carr); + writel(venc_cfg->c_phase, &venc->c_phase); + writel(venc_cfg->gain_u, &venc->gain_u); + writel(venc_cfg->gain_v, &venc->gain_v); + writel(venc_cfg->gain_y, &venc->gain_y); + writel(venc_cfg->black_level, &venc->black_level); + writel(venc_cfg->blank_level, &venc->blank_level); + writel(venc_cfg->x_color, &venc->x_color); + writel(venc_cfg->m_control, &venc->m_control); + writel(venc_cfg->bstamp_wss_data, &venc->bstamp_wss_data); + writel(venc_cfg->s_carr, &venc->s_carr); + writel(venc_cfg->line21, &venc->line21); + writel(venc_cfg->ln_sel, &venc->ln_sel); + writel(venc_cfg->l21__wc_ctl, &venc->l21__wc_ctl); + writel(venc_cfg->htrigger_vtrigger, &venc->htrigger_vtrigger); + writel(venc_cfg->savid__eavid, &venc->savid__eavid); + writel(venc_cfg->flen__fal, &venc->flen__fal); + writel(venc_cfg->lal__phase_reset, &venc->lal__phase_reset); + writel(venc_cfg->hs_int_start_stop_x, + &venc->hs_int_start_stop_x); + writel(venc_cfg->hs_ext_start_stop_x, + &venc->hs_ext_start_stop_x); + writel(venc_cfg->vs_int_start_x, &venc->vs_int_start_x); + writel(venc_cfg->vs_int_stop_x__vs_int_start_y, + &venc->vs_int_stop_x__vs_int_start_y); + writel(venc_cfg->vs_int_stop_y__vs_ext_start_x, + &venc->vs_int_stop_y__vs_ext_start_x); + writel(venc_cfg->vs_ext_stop_x__vs_ext_start_y, + &venc->vs_ext_stop_x__vs_ext_start_y); + writel(venc_cfg->vs_ext_stop_y, &venc->vs_ext_stop_y); + writel(venc_cfg->avid_start_stop_x, &venc->avid_start_stop_x); + writel(venc_cfg->avid_start_stop_y, &venc->avid_start_stop_y); + writel(venc_cfg->fid_int_start_x__fid_int_start_y, + &venc->fid_int_start_x__fid_int_start_y); + writel(venc_cfg->fid_int_offset_y__fid_ext_start_x, + &venc->fid_int_offset_y__fid_ext_start_x); + writel(venc_cfg->fid_ext_start_y__fid_ext_offset_y, + &venc->fid_ext_start_y__fid_ext_offset_y); + writel(venc_cfg->tvdetgp_int_start_stop_x, + &venc->tvdetgp_int_start_stop_x); + writel(venc_cfg->tvdetgp_int_start_stop_y, + &venc->tvdetgp_int_start_stop_y); + writel(venc_cfg->gen_ctrl, &venc->gen_ctrl); + writel(venc_cfg->output_control, &venc->output_control); + writel(venc_cfg->dac_b__dac_c, &venc->dac_b__dac_c); + + /* Configure DSS for VENC Settings */ + writel(VENC_DSS_CONFIG, &dss->control); + + /* Configure height and width for Digital out */ + writel(((height << DIG_LPP_SHIFT) | width), &dispc->size_dig); +} + +/* + * Configure Panel Specific Parameters + */ +void omap3_dss_panel_config(const struct panel_config *panel_cfg) +{ + struct dispc_regs *dispc = (struct dispc_regs *) OMAP3_DISPC_BASE; + + writel(panel_cfg->timing_h, &dispc->timing_h); + writel(panel_cfg->timing_v, &dispc->timing_v); + writel(panel_cfg->pol_freq, &dispc->pol_freq); + writel(panel_cfg->divisor, &dispc->divisor); + writel(panel_cfg->lcd_size, &dispc->size_lcd); + writel((panel_cfg->load_mode << FRAME_MODE_SHIFT), &dispc->config); + writel(((panel_cfg->panel_type << TFTSTN_SHIFT) | + (panel_cfg->data_lines << DATALINES_SHIFT)), &dispc->control); + writel(panel_cfg->panel_color, &dispc->default_color0); +} + +/* + * Enable LCD and DIGITAL OUT in DSS + */ +void omap3_dss_enable(void) +{ + struct dispc_regs *dispc = (struct dispc_regs *) OMAP3_DISPC_BASE; + u32 l = 0; + + l = readl(&dispc->control); + l |= DISPC_ENABLE; + writel(l, &dispc->control); +}