drivers/video/fbdev/omap2/omapfb/dss/dss_features.h

Source file repositories/reference/linux-study-clean/drivers/video/fbdev/omap2/omapfb/dss/dss_features.h

File Facts

System
Linux kernel
Corpus path
drivers/video/fbdev/omap2/omapfb/dss/dss_features.h
Extension
.h
Size
2580 bytes
Lines
98
Domain
Driver Families
Bucket
drivers/video
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef __OMAP2_DSS_FEATURES_H
#define __OMAP2_DSS_FEATURES_H

#define MAX_DSS_MANAGERS	4
#define MAX_DSS_OVERLAYS	4
#define MAX_DSS_LCD_MANAGERS	3
#define MAX_NUM_DSI		2

/* DSS has feature id */
enum dss_feat_id {
	FEAT_LCDENABLEPOL,
	FEAT_LCDENABLESIGNAL,
	FEAT_PCKFREEENABLE,
	FEAT_FUNCGATED,
	FEAT_MGR_LCD2,
	FEAT_MGR_LCD3,
	FEAT_LINEBUFFERSPLIT,
	FEAT_ROWREPEATENABLE,
	FEAT_RESIZECONF,
	/* Independent core clk divider */
	FEAT_CORE_CLK_DIV,
	FEAT_LCD_CLK_SRC,
	/* DSI-PLL power command 0x3 is not working */
	FEAT_DSI_PLL_PWR_BUG,
	FEAT_DSI_DCS_CMD_CONFIG_VC,
	FEAT_DSI_VC_OCP_WIDTH,
	FEAT_DSI_REVERSE_TXCLKESC,
	FEAT_DSI_GNQ,
	FEAT_DPI_USES_VDDS_DSI,
	FEAT_HDMI_CTS_SWMODE,
	FEAT_HDMI_AUDIO_USE_MCLK,
	FEAT_HANDLE_UV_SEPARATE,
	FEAT_ATTR2,
	FEAT_VENC_REQUIRES_TV_DAC_CLK,
	FEAT_CPR,
	FEAT_PRELOAD,
	FEAT_FIR_COEF_V,
	FEAT_ALPHA_FIXED_ZORDER,
	FEAT_ALPHA_FREE_ZORDER,
	FEAT_FIFO_MERGE,
	/* An unknown HW bug causing the normal FIFO thresholds not to work */
	FEAT_OMAP3_DSI_FIFO_BUG,
	FEAT_BURST_2D,
	FEAT_DSI_PHY_DCC,
	FEAT_MFLAG,
};

/* DSS register field id */
enum dss_feat_reg_field {
	FEAT_REG_FIRHINC,
	FEAT_REG_FIRVINC,
	FEAT_REG_FIFOHIGHTHRESHOLD,
	FEAT_REG_FIFOLOWTHRESHOLD,
	FEAT_REG_FIFOSIZE,
	FEAT_REG_HORIZONTALACCU,
	FEAT_REG_VERTICALACCU,
	FEAT_REG_DISPC_CLK_SWITCH,
};

enum dss_range_param {
	FEAT_PARAM_DSS_FCK,
	FEAT_PARAM_DSS_PCD,
	FEAT_PARAM_DSIPLL_LPDIV,
	FEAT_PARAM_DSI_FCK,
	FEAT_PARAM_DOWNSCALE,
	FEAT_PARAM_LINEWIDTH,
};

/* DSS Feature Functions */
unsigned long dss_feat_get_param_min(enum dss_range_param param);
unsigned long dss_feat_get_param_max(enum dss_range_param param);
enum omap_overlay_caps dss_feat_get_overlay_caps(enum omap_plane plane);
bool dss_feat_color_mode_supported(enum omap_plane plane,
		enum omap_color_mode color_mode);
const char *dss_feat_get_clk_source_name(enum omap_dss_clk_source id);

u32 dss_feat_get_buffer_size_unit(void);	/* in bytes */
u32 dss_feat_get_burst_size_unit(void);		/* in bytes */

bool dss_feat_rotation_type_supported(enum omap_dss_rotation_type rot_type);

bool dss_has_feature(enum dss_feat_id id);
void dss_feat_get_reg_field(enum dss_feat_reg_field id, u8 *start, u8 *end);
void dss_features_init(enum omapdss_version version);

enum omap_display_type dss_feat_get_supported_displays(enum omap_channel channel);
enum omap_dss_output_id dss_feat_get_supported_outputs(enum omap_channel channel);

#endif

Annotation

Implementation Notes