korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-14 15:54:15 +08:00
Code Issues Packages Projects Releases Wiki Activity

drm/tegra: Use generic HDMI infoframe helpers

Browse Source 
Use the generic HDMI infoframe helpers to get rid of the NVIDIA Tegra
reimplementation.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Thierry Reding 2012-11-23 15:14:00 +01:00
parent 5e308591a8
commit ac24c2204a
3 changed files with 111 additions and 307 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/tegra/Kconfig
View File

@ -4,6 +4,7 @@ config DRM_TEGRA
select DRM_KMS_HELPER
select DRM_GEM_CMA_HELPER
select DRM_KMS_CMA_HELPER
select DRM_HDMI
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT

228
drivers/gpu/drm/tegra/hdmi.c
View File

@ -10,6 +10,7 @@
#include <linux/clk.h>
#include <linux/debugfs.h>
#include <linux/gpio.h>
#include <linux/hdmi.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
@ -17,6 +18,8 @@
#include <mach/clk.h>
#include <drm/drm_edid.h>
#include "hdmi.h"
#include "drm.h"
#include "dc.h"
@ -401,54 +404,65 @@ static int tegra_hdmi_setup_audio(struct tegra_hdmi *hdmi, unsigned int pclk)
return 0;
}
static void tegra_hdmi_write_infopack(struct tegra_hdmi *hdmi,
unsigned int offset, u8 type,
u8 version, void *data, size_t size)
static inline unsigned long tegra_hdmi_subpack(const u8 *ptr, size_t size)
{
unsigned long value;
u8 *ptr = data;
u32 subpack[2];
unsigned long value = 0;
size_t i;
u8 csum;
/* first byte of data is the checksum */
csum = type + version + size - 1;
for (i = size; i > 0; i--)
value = (value << 8) | ptr[i - 1];
for (i = 1; i < size; i++)
csum += ptr[i];
return value;
}
ptr[0] = 0x100 - csum;
static void tegra_hdmi_write_infopack(struct tegra_hdmi *hdmi, const void *data,
size_t size)
{
const u8 *ptr = data;
unsigned long offset;
unsigned long value;
size_t i, j;
value = INFOFRAME_HEADER_TYPE(type) |
INFOFRAME_HEADER_VERSION(version) |
INFOFRAME_HEADER_LEN(size - 1);
switch (ptr[0]) {
case HDMI_INFOFRAME_TYPE_AVI:
offset = HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_HEADER;
break;
case HDMI_INFOFRAME_TYPE_AUDIO:
offset = HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_HEADER;
break;
case HDMI_INFOFRAME_TYPE_VENDOR:
offset = HDMI_NV_PDISP_HDMI_GENERIC_HEADER;
break;
default:
dev_err(hdmi->dev, "unsupported infoframe type: %02x\n",
ptr[0]);
return;
}
value = INFOFRAME_HEADER_TYPE(ptr[0]) |
INFOFRAME_HEADER_VERSION(ptr[1]) |
INFOFRAME_HEADER_LEN(ptr[2]);
tegra_hdmi_writel(hdmi, value, offset);
offset++;
/* The audio inforame only has one set of subpack registers. The hdmi
* block pads the rest of the data as per the spec so we have to fixup
* the length before filling in the subpacks.
/*
* Each subpack contains 7 bytes, divided into:
* - subpack_low: bytes 0 - 3
* - subpack_high: bytes 4 - 6 (with byte 7 padded to 0x00)
*/
if (offset == HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_HEADER)
size = 6;
for (i = 3, j = 0; i < size; i += 7, j += 8) {
size_t rem = size - i, num = min_t(size_t, rem, 4);
/* each subpack 7 bytes devided into:
* subpack_low - bytes 0 - 3
* subpack_high - bytes 4 - 6 (with byte 7 padded to 0x00)
*/
for (i = 0; i < size; i++) {
size_t index = i % 7;
value = tegra_hdmi_subpack(&ptr[i], num);
tegra_hdmi_writel(hdmi, value, offset++);
if (index == 0)
memset(subpack, 0x0, sizeof(subpack));
num = min_t(size_t, rem - num, 3);
((u8 *)subpack)[index] = ptr[i];
if (index == 6 || (i + 1 == size)) {
unsigned int reg = offset + 1 + (i / 7) * 2;
tegra_hdmi_writel(hdmi, subpack[0], reg);
tegra_hdmi_writel(hdmi, subpack[1], reg + 1);
}
value = tegra_hdmi_subpack(&ptr[i + 4], num);
tegra_hdmi_writel(hdmi, value, offset++);
}
}
@ -456,9 +470,8 @@ static void tegra_hdmi_setup_avi_infoframe(struct tegra_hdmi *hdmi,
struct drm_display_mode *mode)
{
struct hdmi_avi_infoframe frame;
unsigned int h_front_porch;
unsigned int hsize = 16;
unsigned int vsize = 9;
u8 buffer[17];
ssize_t err;
if (hdmi->dvi) {
tegra_hdmi_writel(hdmi, 0,
@ -466,69 +479,19 @@ static void tegra_hdmi_setup_avi_infoframe(struct tegra_hdmi *hdmi,
return;
}
h_front_porch = mode->hsync_start - mode->hdisplay;
memset(&frame, 0, sizeof(frame));
frame.r = HDMI_AVI_R_SAME;
switch (mode->vdisplay) {
case 480:
if (mode->hdisplay == 640) {
frame.m = HDMI_AVI_M_4_3;
frame.vic = 1;
} else {
frame.m = HDMI_AVI_M_16_9;
frame.vic = 3;
}
break;
case 576:
if (((hsize * 10) / vsize) > 14) {
frame.m = HDMI_AVI_M_16_9;
frame.vic = 18;
} else {
frame.m = HDMI_AVI_M_4_3;
frame.vic = 17;
}
break;
case 720:
case 1470: /* stereo mode */
frame.m = HDMI_AVI_M_16_9;
if (h_front_porch == 110)
frame.vic = 4;
else
frame.vic = 19;
break;
case 1080:
case 2205: /* stereo mode */
frame.m = HDMI_AVI_M_16_9;
switch (h_front_porch) {
case 88:
frame.vic = 16;
break;
case 528:
frame.vic = 31;
break;
default:
frame.vic = 32;
break;
}
break;
default:
frame.m = HDMI_AVI_M_16_9;
frame.vic = 0;
break;
err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode);
if (err < 0) {
dev_err(hdmi->dev, "failed to setup AVI infoframe: %zd\n", err);
return;
}
tegra_hdmi_write_infopack(hdmi, HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_HEADER,
HDMI_INFOFRAME_TYPE_AVI, HDMI_AVI_VERSION,
&frame, sizeof(frame));
err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer));
if (err < 0) {
dev_err(hdmi->dev, "failed to pack AVI infoframe: %zd\n", err);
return;
}
tegra_hdmi_write_infopack(hdmi, buffer, err);
tegra_hdmi_writel(hdmi, INFOFRAME_CTRL_ENABLE,
HDMI_NV_PDISP_HDMI_AVI_INFOFRAME_CTRL);
@ -537,6 +500,8 @@ static void tegra_hdmi_setup_avi_infoframe(struct tegra_hdmi *hdmi,
static void tegra_hdmi_setup_audio_infoframe(struct tegra_hdmi *hdmi)
{
struct hdmi_audio_infoframe frame;
u8 buffer[14];
ssize_t err;
if (hdmi->dvi) {
tegra_hdmi_writel(hdmi, 0,
@ -544,14 +509,29 @@ static void tegra_hdmi_setup_audio_infoframe(struct tegra_hdmi *hdmi)
return;
}
memset(&frame, 0, sizeof(frame));
frame.cc = HDMI_AUDIO_CC_2;
err = hdmi_audio_infoframe_init(&frame);
if (err < 0) {
dev_err(hdmi->dev, "failed to initialize audio infoframe: %d\n",
err);
return;
}
tegra_hdmi_write_infopack(hdmi,
HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_HEADER,
HDMI_INFOFRAME_TYPE_AUDIO,
HDMI_AUDIO_VERSION,
&frame, sizeof(frame));
frame.channels = 2;
err = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
if (err < 0) {
dev_err(hdmi->dev, "failed to pack audio infoframe: %zd\n",
err);
return;
}
/*
* The audio infoframe has only one set of subpack registers, so the
* infoframe needs to be truncated. One set of subpack registers can
* contain 7 bytes. Including the 3 byte header only the first 10
* bytes can be programmed.
*/
tegra_hdmi_write_infopack(hdmi, buffer, min(10, err));
tegra_hdmi_writel(hdmi, INFOFRAME_CTRL_ENABLE,
HDMI_NV_PDISP_HDMI_AUDIO_INFOFRAME_CTRL);
@ -559,8 +539,10 @@ static void tegra_hdmi_setup_audio_infoframe(struct tegra_hdmi *hdmi)
static void tegra_hdmi_setup_stereo_infoframe(struct tegra_hdmi *hdmi)
{
struct hdmi_stereo_infoframe frame;
struct hdmi_vendor_infoframe frame;
unsigned long value;
u8 buffer[10];
ssize_t err;
if (!hdmi->stereo) {
value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
@ -570,22 +552,32 @@ static void tegra_hdmi_setup_stereo_infoframe(struct tegra_hdmi *hdmi)
}
memset(&frame, 0, sizeof(frame));
frame.regid0 = 0x03;
frame.regid1 = 0x0c;
frame.regid2 = 0x00;
frame.hdmi_video_format = 2;
frame.type = HDMI_INFOFRAME_TYPE_VENDOR;
frame.version = 0x01;
frame.length = 6;
frame.data[0] = 0x03; /* regid0 */
frame.data[1] = 0x0c; /* regid1 */
frame.data[2] = 0x00; /* regid2 */
frame.data[3] = 0x02 << 5; /* video format */
/* TODO: 74 MHz limit? */
if (1) {
frame._3d_structure = 0;
frame.data[4] = 0x00 << 4; /* 3D structure */
} else {
frame._3d_structure = 8;
frame._3d_ext_data = 0;
frame.data[4] = 0x08 << 4; /* 3D structure */
frame.data[5] = 0x00 << 4; /* 3D ext. data */
}
tegra_hdmi_write_infopack(hdmi, HDMI_NV_PDISP_HDMI_GENERIC_HEADER,
HDMI_INFOFRAME_TYPE_VENDOR,
HDMI_VENDOR_VERSION, &frame, 6);
err = hdmi_vendor_infoframe_pack(&frame, buffer, sizeof(buffer));
if (err < 0) {
dev_err(hdmi->dev, "failed to pack vendor infoframe: %zd\n",
err);
return;
}
tegra_hdmi_write_infopack(hdmi, buffer, err);
value = tegra_hdmi_readl(hdmi, HDMI_NV_PDISP_HDMI_GENERIC_CTRL);
value |= GENERIC_CTRL_ENABLE;

189
drivers/gpu/drm/tegra/hdmi.h
View File

@ -10,195 +10,6 @@
#ifndef TEGRA_HDMI_H
#define TEGRA_HDMI_H 1
#define HDMI_INFOFRAME_TYPE_VENDOR 0x81
#define HDMI_INFOFRAME_TYPE_AVI 0x82
#define HDMI_INFOFRAME_TYPE_SPD 0x83
#define HDMI_INFOFRAME_TYPE_AUDIO 0x84
#define HDMI_INFOFRAME_TYPE_MPEG_SRC 0x85
#define HDMI_INFOFRAME_TYPE_NTSC_VBI 0x86
/* all fields little endian */
struct hdmi_avi_infoframe {
/* PB0 */
u8 csum;
/* PB1 */
unsigned s:2; /* scan information */
unsigned b:2; /* bar info data valid */
unsigned a:1; /* active info present */
unsigned y:2; /* RGB or YCbCr */
unsigned res1:1;
/* PB2 */
unsigned r:4; /* active format aspect ratio */
unsigned m:2; /* picture aspect ratio */
unsigned c:2; /* colorimetry */
/* PB3 */
unsigned sc:2; /* scan information */
unsigned q:2; /* quantization range */
unsigned ec:3; /* extended colorimetry */
unsigned itc:1; /* it content */
/* PB4 */
unsigned vic:7; /* video format id code */
unsigned res4:1;
/* PB5 */
unsigned pr:4; /* pixel repetition factor */
unsigned cn:2; /* it content type*/
unsigned yq:2; /* ycc quantization range */
/* PB6-7 */
u16 top_bar_end_line;
/* PB8-9 */
u16 bot_bar_start_line;
/* PB10-11 */
u16 left_bar_end_pixel;
/* PB12-13 */
u16 right_bar_start_pixel;
} __packed;
#define HDMI_AVI_VERSION 0x02
#define HDMI_AVI_Y_RGB 0x0
#define HDMI_AVI_Y_YCBCR_422 0x1
#define HDMI_AVI_Y_YCBCR_444 0x2
#define HDMI_AVI_B_VERT 0x1
#define HDMI_AVI_B_HORIZ 0x2
#define HDMI_AVI_S_NONE 0x0
#define HDMI_AVI_S_OVERSCAN 0x1
#define HDMI_AVI_S_UNDERSCAN 0x2
#define HDMI_AVI_C_NONE 0x0
#define HDMI_AVI_C_SMPTE 0x1
#define HDMI_AVI_C_ITU_R 0x2
#define HDMI_AVI_C_EXTENDED 0x4
#define HDMI_AVI_M_4_3 0x1
#define HDMI_AVI_M_16_9 0x2
#define HDMI_AVI_R_SAME 0x8
#define HDMI_AVI_R_4_3_CENTER 0x9
#define HDMI_AVI_R_16_9_CENTER 0xa
#define HDMI_AVI_R_14_9_CENTER 0xb
/* all fields little endian */
struct hdmi_audio_infoframe {
/* PB0 */
u8 csum;
/* PB1 */
unsigned cc:3; /* channel count */
unsigned res1:1;
unsigned ct:4; /* coding type */
/* PB2 */
unsigned ss:2; /* sample size */
unsigned sf:3; /* sample frequency */
unsigned res2:3;
/* PB3 */
unsigned cxt:5; /* coding extention type */
unsigned res3:3;
/* PB4 */
u8 ca; /* channel/speaker allocation */
/* PB5 */
unsigned res5:3;
unsigned lsv:4; /* level shift value */
unsigned dm_inh:1; /* downmix inhibit */
/* PB6-10 reserved */
u8 res6;
u8 res7;
u8 res8;
u8 res9;
u8 res10;
} __packed;
#define HDMI_AUDIO_VERSION 0x01
#define HDMI_AUDIO_CC_STREAM 0x0 /* specified by audio stream */
#define HDMI_AUDIO_CC_2 0x1
#define HDMI_AUDIO_CC_3 0x2
#define HDMI_AUDIO_CC_4 0x3
#define HDMI_AUDIO_CC_5 0x4
#define HDMI_AUDIO_CC_6 0x5
#define HDMI_AUDIO_CC_7 0x6
#define HDMI_AUDIO_CC_8 0x7
#define HDMI_AUDIO_CT_STREAM 0x0 /* specified by audio stream */
#define HDMI_AUDIO_CT_PCM 0x1
#define HDMI_AUDIO_CT_AC3 0x2
#define HDMI_AUDIO_CT_MPEG1 0x3
#define HDMI_AUDIO_CT_MP3 0x4
#define HDMI_AUDIO_CT_MPEG2 0x5
#define HDMI_AUDIO_CT_AAC_LC 0x6
#define HDMI_AUDIO_CT_DTS 0x7
#define HDMI_AUDIO_CT_ATRAC 0x8
#define HDMI_AUDIO_CT_DSD 0x9
#define HDMI_AUDIO_CT_E_AC3 0xa
#define HDMI_AUDIO_CT_DTS_HD 0xb
#define HDMI_AUDIO_CT_MLP 0xc
#define HDMI_AUDIO_CT_DST 0xd
#define HDMI_AUDIO_CT_WMA_PRO 0xe
#define HDMI_AUDIO_CT_CXT 0xf
#define HDMI_AUDIO_SF_STREAM 0x0 /* specified by audio stream */
#define HDMI_AUIDO_SF_32K 0x1
#define HDMI_AUDIO_SF_44_1K 0x2
#define HDMI_AUDIO_SF_48K 0x3
#define HDMI_AUDIO_SF_88_2K 0x4
#define HDMI_AUDIO_SF_96K 0x5
#define HDMI_AUDIO_SF_176_4K 0x6
#define HDMI_AUDIO_SF_192K 0x7
#define HDMI_AUDIO_SS_STREAM 0x0 /* specified by audio stream */
#define HDMI_AUDIO_SS_16BIT 0x1
#define HDMI_AUDIO_SS_20BIT 0x2
#define HDMI_AUDIO_SS_24BIT 0x3
#define HDMI_AUDIO_CXT_CT 0x0 /* refer to coding in CT */
#define HDMI_AUDIO_CXT_HE_AAC 0x1
#define HDMI_AUDIO_CXT_HE_AAC_V2 0x2
#define HDMI_AUDIO_CXT_MPEG_SURROUND 0x3
/* all fields little endian */
struct hdmi_stereo_infoframe {
/* PB0 */
u8 csum;
/* PB1 */
u8 regid0;
/* PB2 */
u8 regid1;
/* PB3 */
u8 regid2;
/* PB4 */
unsigned res1:5;
unsigned hdmi_video_format:3;
/* PB5 */
unsigned res2:4;
unsigned _3d_structure:4;
/* PB6*/
unsigned res3:4;
unsigned _3d_ext_data:4;
} __packed;
#define HDMI_VENDOR_VERSION 0x01
/* register definitions */
#define HDMI_CTXSW 0x00