drivers/gpu/drm/amd/display/dc/bios/dce80/command_table_helper_dce80.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/amd/display/dc/bios/dce80/command_table_helper_dce80.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/amd/display/dc/bios/dce80/command_table_helper_dce80.c
Extension
.c
Size
6763 bytes
Lines
251
Domain
Driver Families
Bucket
drivers/gpu
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

switch (id) {
		case CLOCK_SOURCE_ID_PLL0:
			*atom_pll_id = ATOM_PPLL0;
			break;
		case CLOCK_SOURCE_ID_PLL1:
			*atom_pll_id = ATOM_PPLL1;
			break;
		case CLOCK_SOURCE_ID_PLL2:
			*atom_pll_id = ATOM_PPLL2;
			break;
		case CLOCK_SOURCE_ID_EXTERNAL:
			*atom_pll_id = ATOM_PPLL_INVALID;
			break;
		case CLOCK_SOURCE_ID_DFS:
			*atom_pll_id = ATOM_EXT_PLL1;
			break;
		case CLOCK_SOURCE_ID_VCE:
			/* for VCE encoding,
			 * we need to pass in ATOM_PPLL_INVALID
			 */
			*atom_pll_id = ATOM_PPLL_INVALID;
			break;
		case CLOCK_SOURCE_ID_DP_DTO:
			/* When programming DP DTO PLL ID should be invalid */
			*atom_pll_id = ATOM_PPLL_INVALID;
			break;
		case CLOCK_SOURCE_ID_UNDEFINED:
			BREAK_TO_DEBUGGER(); /* check when this will happen! */
			*atom_pll_id = ATOM_PPLL_INVALID;
			result = false;
			break;
		default:
			result = false;
			break;
		}

	return result;
}

static uint8_t signal_type_to_atom_dig_mode(enum signal_type s)
{
	uint8_t atom_dig_mode = ATOM_TRANSMITTER_DIGMODE_V5_DP;

	switch (s) {
	case SIGNAL_TYPE_DISPLAY_PORT:
	case SIGNAL_TYPE_EDP:
		atom_dig_mode = ATOM_TRANSMITTER_DIGMODE_V5_DP;
		break;
	case SIGNAL_TYPE_LVDS:
		atom_dig_mode = ATOM_TRANSMITTER_DIGMODE_V5_LVDS;
		break;
	case SIGNAL_TYPE_DVI_SINGLE_LINK:
	case SIGNAL_TYPE_DVI_DUAL_LINK:
		atom_dig_mode = ATOM_TRANSMITTER_DIGMODE_V5_DVI;
		break;
	case SIGNAL_TYPE_HDMI_TYPE_A:
		atom_dig_mode = ATOM_TRANSMITTER_DIGMODE_V5_HDMI;
		break;
	case SIGNAL_TYPE_DISPLAY_PORT_MST:
		atom_dig_mode = ATOM_TRANSMITTER_DIGMODE_V5_DP_MST;
		break;
	default:
		atom_dig_mode = ATOM_TRANSMITTER_DIGMODE_V5_DVI;
		break;
	}

	return atom_dig_mode;
}

static uint8_t hpd_sel_to_atom(enum hpd_source_id id)
{
	uint8_t atom_hpd_sel = 0;

	switch (id) {
	case HPD_SOURCEID1:
		atom_hpd_sel = ATOM_TRANSMITTER_CONFIG_V5_HPD1_SEL;
		break;
	case HPD_SOURCEID2:
		atom_hpd_sel = ATOM_TRANSMITTER_CONFIG_V5_HPD2_SEL;
		break;
	case HPD_SOURCEID3:
		atom_hpd_sel = ATOM_TRANSMITTER_CONFIG_V5_HPD3_SEL;
		break;
	case HPD_SOURCEID4:
		atom_hpd_sel = ATOM_TRANSMITTER_CONFIG_V5_HPD4_SEL;
		break;
	case HPD_SOURCEID5:
		atom_hpd_sel = ATOM_TRANSMITTER_CONFIG_V5_HPD5_SEL;
		break;
	case HPD_SOURCEID6:

Annotation

Implementation Notes