diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/r600_hdmi.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/r600_hdmi.c | 134 |
1 files changed, 39 insertions, 95 deletions
diff --git a/drivers/gpu/drm/radeon/r600_hdmi.c b/drivers/gpu/drm/radeon/r600_hdmi.c index 95970ec..21ecc0e 100644 --- a/drivers/gpu/drm/radeon/r600_hdmi.c +++ b/drivers/gpu/drm/radeon/r600_hdmi.c @@ -23,6 +23,7 @@ * * Authors: Christian König */ +#include <linux/hdmi.h> #include <drm/drmP.h> #include <drm/radeon_drm.h> #include "radeon.h" @@ -121,79 +122,18 @@ static void r600_hdmi_update_ACR(struct drm_encoder *encoder, uint32_t clock) } /* - * calculate the crc for a given info frame - */ -static void r600_hdmi_infoframe_checksum(uint8_t packetType, - uint8_t versionNumber, - uint8_t length, - uint8_t *frame) -{ - int i; - frame[0] = packetType + versionNumber + length; - for (i = 1; i <= length; i++) - frame[0] += frame[i]; - frame[0] = 0x100 - frame[0]; -} - -/* * build a HDMI Video Info Frame */ -static void r600_hdmi_videoinfoframe( - struct drm_encoder *encoder, - enum r600_hdmi_color_format color_format, - int active_information_present, - uint8_t active_format_aspect_ratio, - uint8_t scan_information, - uint8_t colorimetry, - uint8_t ex_colorimetry, - uint8_t quantization, - int ITC, - uint8_t picture_aspect_ratio, - uint8_t video_format_identification, - uint8_t pixel_repetition, - uint8_t non_uniform_picture_scaling, - uint8_t bar_info_data_valid, - uint16_t top_bar, - uint16_t bottom_bar, - uint16_t left_bar, - uint16_t right_bar -) +static void r600_hdmi_update_avi_infoframe(struct drm_encoder *encoder, + void *buffer, size_t size) { struct drm_device *dev = encoder->dev; struct radeon_device *rdev = dev->dev_private; struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; uint32_t offset = dig->afmt->offset; + uint8_t *frame = buffer + 3; - uint8_t frame[14]; - - frame[0x0] = 0; - frame[0x1] = - (scan_information & 0x3) | - ((bar_info_data_valid & 0x3) << 2) | - ((active_information_present & 0x1) << 4) | - ((color_format & 0x3) << 5); - frame[0x2] = - (active_format_aspect_ratio & 0xF) | - ((picture_aspect_ratio & 0x3) << 4) | - ((colorimetry & 0x3) << 6); - frame[0x3] = - (non_uniform_picture_scaling & 0x3) | - ((quantization & 0x3) << 2) | - ((ex_colorimetry & 0x7) << 4) | - ((ITC & 0x1) << 7); - frame[0x4] = (video_format_identification & 0x7F); - frame[0x5] = (pixel_repetition & 0xF); - frame[0x6] = (top_bar & 0xFF); - frame[0x7] = (top_bar >> 8); - frame[0x8] = (bottom_bar & 0xFF); - frame[0x9] = (bottom_bar >> 8); - frame[0xA] = (left_bar & 0xFF); - frame[0xB] = (left_bar >> 8); - frame[0xC] = (right_bar & 0xFF); - frame[0xD] = (right_bar >> 8); - - r600_hdmi_infoframe_checksum(0x82, 0x02, 0x0D, frame); /* Our header values (type, version, length) should be alright, Intel * is using the same. Checksum function also seems to be OK, it works * fine for audio infoframe. However calculated value is always lower @@ -215,39 +155,15 @@ static void r600_hdmi_videoinfoframe( /* * build a Audio Info Frame */ -static void r600_hdmi_audioinfoframe( - struct drm_encoder *encoder, - uint8_t channel_count, - uint8_t coding_type, - uint8_t sample_size, - uint8_t sample_frequency, - uint8_t format, - uint8_t channel_allocation, - uint8_t level_shift, - int downmix_inhibit -) +static void r600_hdmi_update_audio_infoframe(struct drm_encoder *encoder, + const void *buffer, size_t size) { struct drm_device *dev = encoder->dev; struct radeon_device *rdev = dev->dev_private; struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; uint32_t offset = dig->afmt->offset; - - uint8_t frame[11]; - - frame[0x0] = 0; - frame[0x1] = (channel_count & 0x7) | ((coding_type & 0xF) << 4); - frame[0x2] = (sample_size & 0x3) | ((sample_frequency & 0x7) << 2); - frame[0x3] = format; - frame[0x4] = channel_allocation; - frame[0x5] = ((level_shift & 0xF) << 3) | ((downmix_inhibit & 0x1) << 7); - frame[0x6] = 0; - frame[0x7] = 0; - frame[0x8] = 0; - frame[0x9] = 0; - frame[0xA] = 0; - - r600_hdmi_infoframe_checksum(0x84, 0x01, 0x0A, frame); + const u8 *frame = buffer + 3; WREG32(HDMI0_AUDIO_INFO0 + offset, frame[0x0] | (frame[0x1] << 8) | (frame[0x2] << 16) | (frame[0x3] << 24)); @@ -320,7 +236,10 @@ void r600_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode *mod struct radeon_device *rdev = dev->dev_private; struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; + u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AVI_INFOFRAME_SIZE]; + struct hdmi_avi_infoframe frame; uint32_t offset; + ssize_t err; /* Silent, r600_hdmi_enable will raise WARN for us */ if (!dig->afmt->enabled) @@ -371,9 +290,19 @@ void r600_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode *mod WREG32(HDMI0_GC + offset, 0); /* unset HDMI0_GC_AVMUTE */ - r600_hdmi_videoinfoframe(encoder, RGB, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); + err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode); + if (err < 0) { + DRM_ERROR("failed to setup AVI infoframe: %zd\n", err); + return; + } + err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer)); + if (err < 0) { + DRM_ERROR("failed to pack AVI infoframe: %zd\n", err); + return; + } + + r600_hdmi_update_avi_infoframe(encoder, buffer, sizeof(buffer)); r600_hdmi_update_ACR(encoder, mode->clock); /* it's unknown what these bits do excatly, but it's indeed quite useful for debugging */ @@ -395,8 +324,11 @@ void r600_hdmi_update_audio_settings(struct drm_encoder *encoder) struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; struct r600_audio audio = r600_audio_status(rdev); + uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE]; + struct hdmi_audio_infoframe frame; uint32_t offset; uint32_t iec; + ssize_t err; if (!dig->afmt || !dig->afmt->enabled) return; @@ -462,9 +394,21 @@ void r600_hdmi_update_audio_settings(struct drm_encoder *encoder) iec |= 0x5 << 16; WREG32_P(HDMI0_60958_1 + offset, iec, ~0x5000f); - r600_hdmi_audioinfoframe(encoder, audio.channels - 1, 0, 0, 0, 0, 0, 0, - 0); + err = hdmi_audio_infoframe_init(&frame); + if (err < 0) { + DRM_ERROR("failed to setup audio infoframe\n"); + return; + } + + frame.channels = audio.channels; + + err = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer)); + if (err < 0) { + DRM_ERROR("failed to pack audio infoframe\n"); + return; + } + r600_hdmi_update_audio_infoframe(encoder, buffer, sizeof(buffer)); r600_hdmi_audio_workaround(encoder); } |