diff options
| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2011-08-03 20:22:56 +0400 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2011-08-04 04:43:15 +0400 |
| commit | c0864cb39c68696e80657360eba63da5e743b7aa (patch) | |
| tree | b78746a6c542923e9d9aa6e829a7f34cc449871b /drivers | |
| parent | 45187ace97f7b3deb559b25348ccb7e301c158c9 (diff) | |
| download | linux-c0864cb39c68696e80657360eba63da5e743b7aa.tar.xz | |
drm/i915/hdmi: HDMI source product description infoframe support
Set an SPD infoframe if the sink supports it.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_drv.h | 21 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_hdmi.c | 16 |
2 files changed, 37 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 2f47dcf0b367..7b330e76a435 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -184,6 +184,22 @@ struct intel_crtc { #define DIP_VERSION_AVI 0x2 #define DIP_LEN_AVI 13 +#define DIP_TYPE_SPD 0x3 +#define DIP_VERSION_SPD 0x1 +#define DIP_LEN_SPD 25 +#define DIP_SPD_UNKNOWN 0 +#define DIP_SPD_DSTB 0x1 +#define DIP_SPD_DVDP 0x2 +#define DIP_SPD_DVHS 0x3 +#define DIP_SPD_HDDVR 0x4 +#define DIP_SPD_DVC 0x5 +#define DIP_SPD_DSC 0x6 +#define DIP_SPD_VCD 0x7 +#define DIP_SPD_GAME 0x8 +#define DIP_SPD_PC 0x9 +#define DIP_SPD_BD 0xa +#define DIP_SPD_SCD 0xb + struct dip_infoframe { uint8_t type; /* HB0 */ uint8_t ver; /* HB1 */ @@ -208,6 +224,11 @@ struct dip_infoframe { uint16_t left_bar_end; uint16_t right_bar_start; } avi; + struct { + uint8_t vn[8]; + uint8_t pd[16]; + uint8_t sdi; + } spd; uint8_t payload[27]; } __attribute__ ((packed)) body; } __attribute__((packed)); diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index d43cebdea1ee..226ba830f383 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -201,6 +201,21 @@ static void intel_hdmi_set_avi_infoframe(struct drm_encoder *encoder) intel_set_infoframe(encoder, &avi_if); } +static void intel_hdmi_set_spd_infoframe(struct drm_encoder *encoder) +{ + struct dip_infoframe spd_if; + + memset(&spd_if, 0, sizeof(spd_if)); + spd_if.type = DIP_TYPE_SPD; + spd_if.ver = DIP_VERSION_SPD; + spd_if.len = DIP_LEN_SPD; + strcpy(spd_if.body.spd.vn, "Intel"); + strcpy(spd_if.body.spd.pd, "Integrated gfx"); + spd_if.body.spd.sdi = DIP_SPD_PC; + + intel_set_infoframe(encoder, &spd_if); +} + static void intel_hdmi_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) @@ -245,6 +260,7 @@ static void intel_hdmi_mode_set(struct drm_encoder *encoder, POSTING_READ(intel_hdmi->sdvox_reg); intel_hdmi_set_avi_infoframe(encoder); + intel_hdmi_set_spd_infoframe(encoder); } static void intel_hdmi_dpms(struct drm_encoder *encoder, int mode) |