diff options
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce120/dce120_timing_generator.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce120/dce120_timing_generator.c b/drivers/gpu/drm/amd/display/dc/dce120/dce120_timing_generator.c index 5ebbbda77021..098e56962f2a 100644 --- a/drivers/gpu/drm/amd/display/dc/dce120/dce120_timing_generator.c +++ b/drivers/gpu/drm/amd/display/dc/dce120/dce120_timing_generator.c @@ -1114,6 +1114,92 @@ static bool dce120_arm_vert_intr( return true; } + +static bool dce120_is_tg_enabled(struct timing_generator *tg) +{ + struct dce110_timing_generator *tg110 = DCE110TG_FROM_TG(tg); + uint32_t value, field; + + value = dm_read_reg_soc15(tg->ctx, mmCRTC0_CRTC_CONTROL, + tg110->offsets.crtc); + field = get_reg_field_value(value, CRTC0_CRTC_CONTROL, + CRTC_CURRENT_MASTER_EN_STATE); + + return field == 1; +} + +static bool dce120_configure_crc(struct timing_generator *tg, + const struct crc_params *params) +{ + struct dce110_timing_generator *tg110 = DCE110TG_FROM_TG(tg); + + /* Cannot configure crc on a CRTC that is disabled */ + if (!dce120_is_tg_enabled(tg)) + return false; + + /* First, disable CRC before we configure it. */ + dm_write_reg_soc15(tg->ctx, mmCRTC0_CRTC_CRC_CNTL, + tg110->offsets.crtc, 0); + + if (!params->enable) + return true; + + /* Program frame boundaries */ + /* Window A x axis start and end. */ + CRTC_REG_UPDATE_2(CRTC0_CRTC_CRC0_WINDOWA_X_CONTROL, + CRTC_CRC0_WINDOWA_X_START, params->windowa_x_start, + CRTC_CRC0_WINDOWA_X_END, params->windowa_x_end); + + /* Window A y axis start and end. */ + CRTC_REG_UPDATE_2(CRTC0_CRTC_CRC0_WINDOWA_Y_CONTROL, + CRTC_CRC0_WINDOWA_Y_START, params->windowa_y_start, + CRTC_CRC0_WINDOWA_Y_END, params->windowa_y_end); + + /* Window B x axis start and end. */ + CRTC_REG_UPDATE_2(CRTC0_CRTC_CRC0_WINDOWB_X_CONTROL, + CRTC_CRC0_WINDOWB_X_START, params->windowb_x_start, + CRTC_CRC0_WINDOWB_X_END, params->windowb_x_end); + + /* Window B y axis start and end. */ + CRTC_REG_UPDATE_2(CRTC0_CRTC_CRC0_WINDOWB_Y_CONTROL, + CRTC_CRC0_WINDOWB_Y_START, params->windowb_y_start, + CRTC_CRC0_WINDOWB_Y_END, params->windowb_y_end); + + /* Set crc mode and selection, and enable. Only using CRC0*/ + CRTC_REG_UPDATE_3(CRTC0_CRTC_CRC_CNTL, + CRTC_CRC_EN, params->continuous_mode ? 1 : 0, + CRTC_CRC0_SELECT, params->selection, + CRTC_CRC_EN, 1); + + return true; +} + +static bool dce120_get_crc(struct timing_generator *tg, uint32_t *r_cr, + uint32_t *g_y, uint32_t *b_cb) +{ + struct dce110_timing_generator *tg110 = DCE110TG_FROM_TG(tg); + uint32_t value, field; + + value = dm_read_reg_soc15(tg->ctx, mmCRTC0_CRTC_CRC_CNTL, + tg110->offsets.crtc); + field = get_reg_field_value(value, CRTC0_CRTC_CRC_CNTL, CRTC_CRC_EN); + + /* Early return if CRC is not enabled for this CRTC */ + if (!field) + return false; + + value = dm_read_reg_soc15(tg->ctx, mmCRTC0_CRTC_CRC0_DATA_RG, + tg110->offsets.crtc); + *r_cr = get_reg_field_value(value, CRTC0_CRTC_CRC0_DATA_RG, CRC0_R_CR); + *g_y = get_reg_field_value(value, CRTC0_CRTC_CRC0_DATA_RG, CRC0_G_Y); + + value = dm_read_reg_soc15(tg->ctx, mmCRTC0_CRTC_CRC0_DATA_B, + tg110->offsets.crtc); + *b_cb = get_reg_field_value(value, CRTC0_CRTC_CRC0_DATA_B, CRC0_B_CB); + + return true; +} + static const struct timing_generator_funcs dce120_tg_funcs = { .validate_timing = dce120_tg_validate_timing, .program_timing = dce120_tg_program_timing, @@ -1145,6 +1231,9 @@ static const struct timing_generator_funcs dce120_tg_funcs = { .set_static_screen_control = dce120_timing_generator_set_static_screen_control, .set_test_pattern = dce120_timing_generator_set_test_pattern, .arm_vert_intr = dce120_arm_vert_intr, + .is_tg_enabled = dce120_is_tg_enabled, + .configure_crc = dce120_configure_crc, + .get_crc = dce120_get_crc, }; |