diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_sdvo.c')
-rw-r--r-- | drivers/gpu/drm/i915/intel_sdvo.c | 112 |
1 files changed, 78 insertions, 34 deletions
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index 45cd37652a3..7c50cdce84f 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -46,6 +46,7 @@ SDVO_TV_MASK) #define IS_TV(c) (c->output_flag & SDVO_TV_MASK) +#define IS_TMDS(c) (c->output_flag & SDVO_TMDS_MASK) #define IS_LVDS(c) (c->output_flag & SDVO_LVDS_MASK) #define IS_TV_OR_LVDS(c) (c->output_flag & (SDVO_TV_MASK | SDVO_LVDS_MASK)) @@ -473,20 +474,6 @@ static bool intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd, return false; } - i = 3; - while (status == SDVO_CMD_STATUS_PENDING && i--) { - if (!intel_sdvo_read_byte(intel_sdvo, - SDVO_I2C_CMD_STATUS, - &status)) - return false; - } - if (status != SDVO_CMD_STATUS_SUCCESS) { - DRM_DEBUG_KMS("command returns response %s [%d]\n", - status <= SDVO_CMD_STATUS_SCALING_NOT_SUPP ? cmd_status_names[status] : "???", - status); - return false; - } - return true; } @@ -497,6 +484,8 @@ static bool intel_sdvo_read_response(struct intel_sdvo *intel_sdvo, u8 status; int i; + DRM_DEBUG_KMS("%s: R: ", SDVO_NAME(intel_sdvo)); + /* * The documentation states that all commands will be * processed within 15µs, and that we need only poll @@ -505,14 +494,19 @@ static bool intel_sdvo_read_response(struct intel_sdvo *intel_sdvo, * * Check 5 times in case the hardware failed to read the docs. */ - do { + if (!intel_sdvo_read_byte(intel_sdvo, + SDVO_I2C_CMD_STATUS, + &status)) + goto log_fail; + + while (status == SDVO_CMD_STATUS_PENDING && retry--) { + udelay(15); if (!intel_sdvo_read_byte(intel_sdvo, SDVO_I2C_CMD_STATUS, &status)) - return false; - } while (status == SDVO_CMD_STATUS_PENDING && --retry); + goto log_fail; + } - DRM_DEBUG_KMS("%s: R: ", SDVO_NAME(intel_sdvo)); if (status <= SDVO_CMD_STATUS_SCALING_NOT_SUPP) DRM_LOG_KMS("(%s)", cmd_status_names[status]); else @@ -533,7 +527,7 @@ static bool intel_sdvo_read_response(struct intel_sdvo *intel_sdvo, return true; log_fail: - DRM_LOG_KMS("\n"); + DRM_LOG_KMS("... failed\n"); return false; } @@ -550,6 +544,7 @@ static int intel_sdvo_get_pixel_multiplier(struct drm_display_mode *mode) static bool intel_sdvo_set_control_bus_switch(struct intel_sdvo *intel_sdvo, u8 ddc_bus) { + /* This must be the immediately preceding write before the i2c xfer */ return intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_CONTROL_BUS_SWITCH, &ddc_bus, 1); @@ -557,7 +552,10 @@ static bool intel_sdvo_set_control_bus_switch(struct intel_sdvo *intel_sdvo, static bool intel_sdvo_set_value(struct intel_sdvo *intel_sdvo, u8 cmd, const void *data, int len) { - return intel_sdvo_write_cmd(intel_sdvo, cmd, data, len); + if (!intel_sdvo_write_cmd(intel_sdvo, cmd, data, len)) + return false; + + return intel_sdvo_read_response(intel_sdvo, NULL, 0); } static bool @@ -859,18 +857,21 @@ static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo) intel_dip_infoframe_csum(&avi_if); - if (!intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_HBUF_INDEX, + if (!intel_sdvo_set_value(intel_sdvo, + SDVO_CMD_SET_HBUF_INDEX, set_buf_index, 2)) return false; for (i = 0; i < sizeof(avi_if); i += 8) { - if (!intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_HBUF_DATA, + if (!intel_sdvo_set_value(intel_sdvo, + SDVO_CMD_SET_HBUF_DATA, data, 8)) return false; data++; } - return intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_HBUF_TXRATE, + return intel_sdvo_set_value(intel_sdvo, + SDVO_CMD_SET_HBUF_TXRATE, &tx_rate, 1); } @@ -1359,7 +1360,8 @@ intel_sdvo_hdmi_sink_detect(struct drm_connector *connector) intel_sdvo->has_hdmi_monitor = drm_detect_hdmi_monitor(edid); intel_sdvo->has_hdmi_audio = drm_detect_monitor_audio(edid); } - } + } else + status = connector_status_disconnected; connector->display_info.raw_edid = NULL; kfree(edid); } @@ -1407,10 +1409,25 @@ intel_sdvo_detect(struct drm_connector *connector, bool force) if ((intel_sdvo_connector->output_flag & response) == 0) ret = connector_status_disconnected; - else if (response & SDVO_TMDS_MASK) + else if (IS_TMDS(intel_sdvo_connector)) ret = intel_sdvo_hdmi_sink_detect(connector); - else - ret = connector_status_connected; + else { + struct edid *edid; + + /* if we have an edid check it matches the connection */ + edid = intel_sdvo_get_edid(connector); + if (edid == NULL) + edid = intel_sdvo_get_analog_edid(connector); + if (edid != NULL) { + if (edid->input & DRM_EDID_INPUT_DIGITAL) + ret = connector_status_disconnected; + else + ret = connector_status_connected; + connector->display_info.raw_edid = NULL; + kfree(edid); + } else + ret = connector_status_connected; + } /* May update encoder flag for like clock for SDVO TV, etc.*/ if (ret == connector_status_connected) { @@ -1446,10 +1463,15 @@ static void intel_sdvo_get_ddc_modes(struct drm_connector *connector) edid = intel_sdvo_get_analog_edid(connector); if (edid != NULL) { - if (edid->input & DRM_EDID_INPUT_DIGITAL) { + struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector); + bool monitor_is_digital = !!(edid->input & DRM_EDID_INPUT_DIGITAL); + bool connector_is_digital = !!IS_TMDS(intel_sdvo_connector); + + if (connector_is_digital == monitor_is_digital) { drm_mode_connector_update_edid_property(connector, edid); drm_add_edid_modes(connector, edid); } + connector->display_info.raw_edid = NULL; kfree(edid); } @@ -1668,6 +1690,22 @@ static void intel_sdvo_destroy(struct drm_connector *connector) kfree(connector); } +static bool intel_sdvo_detect_hdmi_audio(struct drm_connector *connector) +{ + struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector); + struct edid *edid; + bool has_audio = false; + + if (!intel_sdvo->is_hdmi) + return false; + + edid = intel_sdvo_get_edid(connector); + if (edid != NULL && edid->input & DRM_EDID_INPUT_DIGITAL) + has_audio = drm_detect_monitor_audio(edid); + + return has_audio; +} + static int intel_sdvo_set_property(struct drm_connector *connector, struct drm_property *property, @@ -1684,17 +1722,23 @@ intel_sdvo_set_property(struct drm_connector *connector, return ret; if (property == intel_sdvo_connector->force_audio_property) { - if (val == intel_sdvo_connector->force_audio) + int i = val; + bool has_audio; + + if (i == intel_sdvo_connector->force_audio) return 0; - intel_sdvo_connector->force_audio = val; + intel_sdvo_connector->force_audio = i; - if (val > 0 && intel_sdvo->has_hdmi_audio) - return 0; - if (val < 0 && !intel_sdvo->has_hdmi_audio) + if (i == 0) + has_audio = intel_sdvo_detect_hdmi_audio(connector); + else + has_audio = i > 0; + + if (has_audio == intel_sdvo->has_hdmi_audio) return 0; - intel_sdvo->has_hdmi_audio = val > 0; + intel_sdvo->has_hdmi_audio = has_audio; goto done; } |