| /* |
| * linux/drivers/video/omap2/dss/dss_features.c |
| * |
| * Copyright (C) 2010 Texas Instruments |
| * Author: Archit Taneja <archit@ti.com> |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 as published by |
| * the Free Software Foundation. |
| * |
| * 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, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/types.h> |
| #include <linux/err.h> |
| #include <linux/slab.h> |
| |
| #include <video/omapdss.h> |
| #include <plat/cpu.h> |
| |
| #include "dss.h" |
| #include "dss_features.h" |
| |
| /* Defines a generic omap register field */ |
| struct dss_reg_field { |
| u8 start, end; |
| }; |
| |
| struct dss_param_range { |
| int min, max; |
| }; |
| |
| struct omap_dss_features { |
| const struct dss_reg_field *reg_fields; |
| const int num_reg_fields; |
| |
| const u32 has_feature; |
| |
| const int num_mgrs; |
| const int num_ovls; |
| const enum omap_display_type *supported_displays; |
| const enum omap_color_mode *supported_color_modes; |
| const char * const *clksrc_names; |
| const struct dss_param_range *dss_params; |
| }; |
| |
| /* This struct is assigned to one of the below during initialization */ |
| static const struct omap_dss_features *omap_current_dss_features; |
| |
| static const struct dss_reg_field omap2_dss_reg_fields[] = { |
| [FEAT_REG_FIRHINC] = { 11, 0 }, |
| [FEAT_REG_FIRVINC] = { 27, 16 }, |
| [FEAT_REG_FIFOLOWTHRESHOLD] = { 8, 0 }, |
| [FEAT_REG_FIFOHIGHTHRESHOLD] = { 24, 16 }, |
| [FEAT_REG_FIFOSIZE] = { 8, 0 }, |
| [FEAT_REG_HORIZONTALACCU] = { 9, 0 }, |
| [FEAT_REG_VERTICALACCU] = { 25, 16 }, |
| [FEAT_REG_DISPC_CLK_SWITCH] = { 0, 0 }, |
| [FEAT_REG_DSIPLL_REGN] = { 0, 0 }, |
| [FEAT_REG_DSIPLL_REGM] = { 0, 0 }, |
| [FEAT_REG_DSIPLL_REGM_DISPC] = { 0, 0 }, |
| [FEAT_REG_DSIPLL_REGM_DSI] = { 0, 0 }, |
| }; |
| |
| static const struct dss_reg_field omap3_dss_reg_fields[] = { |
| [FEAT_REG_FIRHINC] = { 12, 0 }, |
| [FEAT_REG_FIRVINC] = { 28, 16 }, |
| [FEAT_REG_FIFOLOWTHRESHOLD] = { 11, 0 }, |
| [FEAT_REG_FIFOHIGHTHRESHOLD] = { 27, 16 }, |
| [FEAT_REG_FIFOSIZE] = { 10, 0 }, |
| [FEAT_REG_HORIZONTALACCU] = { 9, 0 }, |
| [FEAT_REG_VERTICALACCU] = { 25, 16 }, |
| [FEAT_REG_DISPC_CLK_SWITCH] = { 0, 0 }, |
| [FEAT_REG_DSIPLL_REGN] = { 7, 1 }, |
| [FEAT_REG_DSIPLL_REGM] = { 18, 8 }, |
| [FEAT_REG_DSIPLL_REGM_DISPC] = { 22, 19 }, |
| [FEAT_REG_DSIPLL_REGM_DSI] = { 26, 23 }, |
| }; |
| |
| static const struct dss_reg_field omap4_dss_reg_fields[] = { |
| [FEAT_REG_FIRHINC] = { 12, 0 }, |
| [FEAT_REG_FIRVINC] = { 28, 16 }, |
| [FEAT_REG_FIFOLOWTHRESHOLD] = { 15, 0 }, |
| [FEAT_REG_FIFOHIGHTHRESHOLD] = { 31, 16 }, |
| [FEAT_REG_FIFOSIZE] = { 15, 0 }, |
| [FEAT_REG_HORIZONTALACCU] = { 10, 0 }, |
| [FEAT_REG_VERTICALACCU] = { 26, 16 }, |
| [FEAT_REG_DISPC_CLK_SWITCH] = { 9, 8 }, |
| [FEAT_REG_DSIPLL_REGN] = { 8, 1 }, |
| [FEAT_REG_DSIPLL_REGM] = { 20, 9 }, |
| [FEAT_REG_DSIPLL_REGM_DISPC] = { 25, 21 }, |
| [FEAT_REG_DSIPLL_REGM_DSI] = { 30, 26 }, |
| }; |
| |
| static const enum omap_display_type omap2_dss_supported_displays[] = { |
| /* OMAP_DSS_CHANNEL_LCD */ |
| OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI, |
| |
| /* OMAP_DSS_CHANNEL_DIGIT */ |
| OMAP_DISPLAY_TYPE_VENC, |
| }; |
| |
| static const enum omap_display_type omap3430_dss_supported_displays[] = { |
| /* OMAP_DSS_CHANNEL_LCD */ |
| OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI | |
| OMAP_DISPLAY_TYPE_SDI | OMAP_DISPLAY_TYPE_DSI, |
| |
| /* OMAP_DSS_CHANNEL_DIGIT */ |
| OMAP_DISPLAY_TYPE_VENC, |
| }; |
| |
| static const enum omap_display_type omap3630_dss_supported_displays[] = { |
| /* OMAP_DSS_CHANNEL_LCD */ |
| OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI | |
| OMAP_DISPLAY_TYPE_DSI, |
| |
| /* OMAP_DSS_CHANNEL_DIGIT */ |
| OMAP_DISPLAY_TYPE_VENC, |
| }; |
| |
| static const enum omap_display_type omap4_dss_supported_displays[] = { |
| /* OMAP_DSS_CHANNEL_LCD */ |
| OMAP_DISPLAY_TYPE_DBI | OMAP_DISPLAY_TYPE_DSI, |
| |
| /* OMAP_DSS_CHANNEL_DIGIT */ |
| OMAP_DISPLAY_TYPE_VENC | OMAP_DISPLAY_TYPE_HDMI, |
| |
| /* OMAP_DSS_CHANNEL_LCD2 */ |
| OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI | |
| OMAP_DISPLAY_TYPE_DSI, |
| }; |
| |
| static const enum omap_color_mode omap2_dss_supported_color_modes[] = { |
| /* OMAP_DSS_GFX */ |
| OMAP_DSS_COLOR_CLUT1 | OMAP_DSS_COLOR_CLUT2 | |
| OMAP_DSS_COLOR_CLUT4 | OMAP_DSS_COLOR_CLUT8 | |
| OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_RGB16 | |
| OMAP_DSS_COLOR_RGB24U | OMAP_DSS_COLOR_RGB24P, |
| |
| /* OMAP_DSS_VIDEO1 */ |
| OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U | |
| OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_YUV2 | |
| OMAP_DSS_COLOR_UYVY, |
| |
| /* OMAP_DSS_VIDEO2 */ |
| OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U | |
| OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_YUV2 | |
| OMAP_DSS_COLOR_UYVY, |
| }; |
| |
| static const enum omap_color_mode omap3_dss_supported_color_modes[] = { |
| /* OMAP_DSS_GFX */ |
| OMAP_DSS_COLOR_CLUT1 | OMAP_DSS_COLOR_CLUT2 | |
| OMAP_DSS_COLOR_CLUT4 | OMAP_DSS_COLOR_CLUT8 | |
| OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_ARGB16 | |
| OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U | |
| OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_ARGB32 | |
| OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32, |
| |
| /* OMAP_DSS_VIDEO1 */ |
| OMAP_DSS_COLOR_RGB24U | OMAP_DSS_COLOR_RGB24P | |
| OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_RGB16 | |
| OMAP_DSS_COLOR_YUV2 | OMAP_DSS_COLOR_UYVY, |
| |
| /* OMAP_DSS_VIDEO2 */ |
| OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_ARGB16 | |
| OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U | |
| OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_YUV2 | |
| OMAP_DSS_COLOR_UYVY | OMAP_DSS_COLOR_ARGB32 | |
| OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32, |
| }; |
| |
| static const enum omap_color_mode omap4_dss_supported_color_modes[] = { |
| /* OMAP_DSS_GFX */ |
| OMAP_DSS_COLOR_CLUT1 | OMAP_DSS_COLOR_CLUT2 | |
| OMAP_DSS_COLOR_CLUT4 | OMAP_DSS_COLOR_CLUT8 | |
| OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_ARGB16 | |
| OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U | |
| OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_ARGB32 | |
| OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32 | |
| OMAP_DSS_COLOR_ARGB16_1555, |
| |
| /* OMAP_DSS_VIDEO1 */ |
| OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB12U | |
| OMAP_DSS_COLOR_YUV2 | OMAP_DSS_COLOR_ARGB16_1555 | |
| OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_NV12 | |
| OMAP_DSS_COLOR_RGBA16 | OMAP_DSS_COLOR_RGB24U | |
| OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_UYVY | |
| OMAP_DSS_COLOR_ARGB16 | OMAP_DSS_COLOR_XRGB16_1555 | |
| OMAP_DSS_COLOR_ARGB32 | OMAP_DSS_COLOR_RGBX16 | |
| OMAP_DSS_COLOR_RGBX32, |
| |
| /* OMAP_DSS_VIDEO2 */ |
| OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB12U | |
| OMAP_DSS_COLOR_YUV2 | OMAP_DSS_COLOR_ARGB16_1555 | |
| OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_NV12 | |
| OMAP_DSS_COLOR_RGBA16 | OMAP_DSS_COLOR_RGB24U | |
| OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_UYVY | |
| OMAP_DSS_COLOR_ARGB16 | OMAP_DSS_COLOR_XRGB16_1555 | |
| OMAP_DSS_COLOR_ARGB32 | OMAP_DSS_COLOR_RGBX16 | |
| OMAP_DSS_COLOR_RGBX32, |
| }; |
| |
| static const char * const omap2_dss_clk_source_names[] = { |
| [OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC] = "N/A", |
| [OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DSI] = "N/A", |
| [OMAP_DSS_CLK_SRC_FCK] = "DSS_FCLK1", |
| }; |
| |
| static const char * const omap3_dss_clk_source_names[] = { |
| [OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC] = "DSI1_PLL_FCLK", |
| [OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DSI] = "DSI2_PLL_FCLK", |
| [OMAP_DSS_CLK_SRC_FCK] = "DSS1_ALWON_FCLK", |
| }; |
| |
| static const char * const omap4_dss_clk_source_names[] = { |
| [OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC] = "PLL1_CLK1", |
| [OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DSI] = "PLL1_CLK2", |
| [OMAP_DSS_CLK_SRC_FCK] = "DSS_FCLK", |
| [OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC] = "PLL2_CLK1", |
| [OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DSI] = "PLL2_CLK2", |
| }; |
| |
| static const struct dss_param_range omap2_dss_param_range[] = { |
| [FEAT_PARAM_DSS_FCK] = { 0, 173000000 }, |
| [FEAT_PARAM_DSIPLL_REGN] = { 0, 0 }, |
| [FEAT_PARAM_DSIPLL_REGM] = { 0, 0 }, |
| [FEAT_PARAM_DSIPLL_REGM_DISPC] = { 0, 0 }, |
| [FEAT_PARAM_DSIPLL_REGM_DSI] = { 0, 0 }, |
| [FEAT_PARAM_DSIPLL_FINT] = { 0, 0 }, |
| [FEAT_PARAM_DSIPLL_LPDIV] = { 0, 0 }, |
| }; |
| |
| static const struct dss_param_range omap3_dss_param_range[] = { |
| [FEAT_PARAM_DSS_FCK] = { 0, 173000000 }, |
| [FEAT_PARAM_DSIPLL_REGN] = { 0, (1 << 7) - 1 }, |
| [FEAT_PARAM_DSIPLL_REGM] = { 0, (1 << 11) - 1 }, |
| [FEAT_PARAM_DSIPLL_REGM_DISPC] = { 0, (1 << 4) - 1 }, |
| [FEAT_PARAM_DSIPLL_REGM_DSI] = { 0, (1 << 4) - 1 }, |
| [FEAT_PARAM_DSIPLL_FINT] = { 750000, 2100000 }, |
| [FEAT_PARAM_DSIPLL_LPDIV] = { 1, (1 << 13) - 1}, |
| }; |
| |
| static const struct dss_param_range omap4_dss_param_range[] = { |
| [FEAT_PARAM_DSS_FCK] = { 0, 186000000 }, |
| [FEAT_PARAM_DSIPLL_REGN] = { 0, (1 << 8) - 1 }, |
| [FEAT_PARAM_DSIPLL_REGM] = { 0, (1 << 12) - 1 }, |
| [FEAT_PARAM_DSIPLL_REGM_DISPC] = { 0, (1 << 5) - 1 }, |
| [FEAT_PARAM_DSIPLL_REGM_DSI] = { 0, (1 << 5) - 1 }, |
| [FEAT_PARAM_DSIPLL_FINT] = { 500000, 2500000 }, |
| [FEAT_PARAM_DSIPLL_LPDIV] = { 0, (1 << 13) - 1 }, |
| }; |
| |
| /* OMAP2 DSS Features */ |
| static const struct omap_dss_features omap2_dss_features = { |
| .reg_fields = omap2_dss_reg_fields, |
| .num_reg_fields = ARRAY_SIZE(omap2_dss_reg_fields), |
| |
| .has_feature = |
| FEAT_LCDENABLEPOL | FEAT_LCDENABLESIGNAL | |
| FEAT_PCKFREEENABLE | FEAT_FUNCGATED | |
| FEAT_ROWREPEATENABLE | FEAT_RESIZECONF, |
| |
| .num_mgrs = 2, |
| .num_ovls = 3, |
| .supported_displays = omap2_dss_supported_displays, |
| .supported_color_modes = omap2_dss_supported_color_modes, |
| .clksrc_names = omap2_dss_clk_source_names, |
| .dss_params = omap2_dss_param_range, |
| }; |
| |
| /* OMAP3 DSS Features */ |
| static const struct omap_dss_features omap3430_dss_features = { |
| .reg_fields = omap3_dss_reg_fields, |
| .num_reg_fields = ARRAY_SIZE(omap3_dss_reg_fields), |
| |
| .has_feature = |
| FEAT_GLOBAL_ALPHA | FEAT_LCDENABLEPOL | |
| FEAT_LCDENABLESIGNAL | FEAT_PCKFREEENABLE | |
| FEAT_FUNCGATED | FEAT_ROWREPEATENABLE | |
| FEAT_LINEBUFFERSPLIT | FEAT_RESIZECONF | |
| FEAT_DSI_PLL_FREQSEL | FEAT_DSI_REVERSE_TXCLKESC, |
| |
| .num_mgrs = 2, |
| .num_ovls = 3, |
| .supported_displays = omap3430_dss_supported_displays, |
| .supported_color_modes = omap3_dss_supported_color_modes, |
| .clksrc_names = omap3_dss_clk_source_names, |
| .dss_params = omap3_dss_param_range, |
| }; |
| |
| static const struct omap_dss_features omap3630_dss_features = { |
| .reg_fields = omap3_dss_reg_fields, |
| .num_reg_fields = ARRAY_SIZE(omap3_dss_reg_fields), |
| |
| .has_feature = |
| FEAT_GLOBAL_ALPHA | FEAT_LCDENABLEPOL | |
| FEAT_LCDENABLESIGNAL | FEAT_PCKFREEENABLE | |
| FEAT_PRE_MULT_ALPHA | FEAT_FUNCGATED | |
| FEAT_ROWREPEATENABLE | FEAT_LINEBUFFERSPLIT | |
| FEAT_RESIZECONF | FEAT_DSI_PLL_PWR_BUG | |
| FEAT_DSI_PLL_FREQSEL, |
| |
| .num_mgrs = 2, |
| .num_ovls = 3, |
| .supported_displays = omap3630_dss_supported_displays, |
| .supported_color_modes = omap3_dss_supported_color_modes, |
| .clksrc_names = omap3_dss_clk_source_names, |
| .dss_params = omap3_dss_param_range, |
| }; |
| |
| /* OMAP4 DSS Features */ |
| /* For OMAP4430 ES 1.0 revision */ |
| static const struct omap_dss_features omap4430_es1_0_dss_features = { |
| .reg_fields = omap4_dss_reg_fields, |
| .num_reg_fields = ARRAY_SIZE(omap4_dss_reg_fields), |
| |
| .has_feature = |
| FEAT_GLOBAL_ALPHA | FEAT_PRE_MULT_ALPHA | |
| FEAT_MGR_LCD2 | FEAT_GLOBAL_ALPHA_VID1 | |
| FEAT_CORE_CLK_DIV | FEAT_LCD_CLK_SRC | |
| FEAT_DSI_DCS_CMD_CONFIG_VC | FEAT_DSI_VC_OCP_WIDTH | |
| FEAT_DSI_GNQ, |
| |
| .num_mgrs = 3, |
| .num_ovls = 3, |
| .supported_displays = omap4_dss_supported_displays, |
| .supported_color_modes = omap4_dss_supported_color_modes, |
| .clksrc_names = omap4_dss_clk_source_names, |
| .dss_params = omap4_dss_param_range, |
| }; |
| |
| /* For all the other OMAP4 versions */ |
| static const struct omap_dss_features omap4_dss_features = { |
| .reg_fields = omap4_dss_reg_fields, |
| .num_reg_fields = ARRAY_SIZE(omap4_dss_reg_fields), |
| |
| .has_feature = |
| FEAT_GLOBAL_ALPHA | FEAT_PRE_MULT_ALPHA | |
| FEAT_MGR_LCD2 | FEAT_GLOBAL_ALPHA_VID1 | |
| FEAT_CORE_CLK_DIV | FEAT_LCD_CLK_SRC | |
| FEAT_DSI_DCS_CMD_CONFIG_VC | FEAT_DSI_VC_OCP_WIDTH | |
| FEAT_DSI_GNQ | FEAT_HDMI_CTS_SWMODE, |
| |
| .num_mgrs = 3, |
| .num_ovls = 3, |
| .supported_displays = omap4_dss_supported_displays, |
| .supported_color_modes = omap4_dss_supported_color_modes, |
| .clksrc_names = omap4_dss_clk_source_names, |
| .dss_params = omap4_dss_param_range, |
| }; |
| |
| /* Functions returning values related to a DSS feature */ |
| int dss_feat_get_num_mgrs(void) |
| { |
| return omap_current_dss_features->num_mgrs; |
| } |
| |
| int dss_feat_get_num_ovls(void) |
| { |
| return omap_current_dss_features->num_ovls; |
| } |
| |
| unsigned long dss_feat_get_param_min(enum dss_range_param param) |
| { |
| return omap_current_dss_features->dss_params[param].min; |
| } |
| |
| unsigned long dss_feat_get_param_max(enum dss_range_param param) |
| { |
| return omap_current_dss_features->dss_params[param].max; |
| } |
| |
| enum omap_display_type dss_feat_get_supported_displays(enum omap_channel channel) |
| { |
| return omap_current_dss_features->supported_displays[channel]; |
| } |
| |
| enum omap_color_mode dss_feat_get_supported_color_modes(enum omap_plane plane) |
| { |
| return omap_current_dss_features->supported_color_modes[plane]; |
| } |
| |
| bool dss_feat_color_mode_supported(enum omap_plane plane, |
| enum omap_color_mode color_mode) |
| { |
| return omap_current_dss_features->supported_color_modes[plane] & |
| color_mode; |
| } |
| |
| const char *dss_feat_get_clk_source_name(enum omap_dss_clk_source id) |
| { |
| return omap_current_dss_features->clksrc_names[id]; |
| } |
| |
| /* DSS has_feature check */ |
| bool dss_has_feature(enum dss_feat_id id) |
| { |
| return omap_current_dss_features->has_feature & id; |
| } |
| |
| void dss_feat_get_reg_field(enum dss_feat_reg_field id, u8 *start, u8 *end) |
| { |
| if (id >= omap_current_dss_features->num_reg_fields) |
| BUG(); |
| |
| *start = omap_current_dss_features->reg_fields[id].start; |
| *end = omap_current_dss_features->reg_fields[id].end; |
| } |
| |
| void dss_features_init(void) |
| { |
| if (cpu_is_omap24xx()) |
| omap_current_dss_features = &omap2_dss_features; |
| else if (cpu_is_omap3630()) |
| omap_current_dss_features = &omap3630_dss_features; |
| else if (cpu_is_omap34xx()) |
| omap_current_dss_features = &omap3430_dss_features; |
| else if (omap_rev() == OMAP4430_REV_ES1_0) |
| omap_current_dss_features = &omap4430_es1_0_dss_features; |
| else if (cpu_is_omap44xx()) |
| omap_current_dss_features = &omap4_dss_features; |
| else |
| DSSWARN("Unsupported OMAP version"); |
| } |