Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-27 07:01:24 +00:00
Code Issues Projects Releases Packages Wiki Activity
u-boot/drivers/video/tda19988.c
Simon Glass 41575d8e4c dm: treewide: Rename auto_alloc_size members to be shorter 
This construct is quite long-winded. In earlier days it made some sense
since auto-allocation was a strange concept. But with driver model now
used pretty universally, we can shorten this to 'auto'. This reduces
verbosity and makes it easier to read.

Coincidentally it also ensures that every declaration is on one line,
thus making dtoc's job easier.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13 08:00:25 -07:00

655 lines
23 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2018 Liviu Dudau <liviu@dudau.co.uk>
*
* Based on the Linux driver, (C) 2012 Texas Instruments
*/
#include <common.h>
#include <dm.h>
#include <display.h>
#include <i2c.h>
#include <linux/bitops.h>
#include <linux/delay.h>
/*
* TDA19988 uses paged registers. We encode the page# in the upper
* bits of the register#. It also means that reads/writes to a register
* have to ensure that the register's page is selected as the current
* page.
*/
#define REG(page, addr) (((page) << 8) | (addr))
#define REG2ADDR(reg) ((reg) & 0xff)
#define REG2PAGE(reg) (((reg) >> 8) & 0xff)
/* register for setting current page */
#define REG_CURRENT_PAGE 0xff
/* Page 00h: General Control */
#define REG_VERSION_LSB REG(0x00, 0x00) /* read */
#define REG_MAIN_CNTRL0 REG(0x00, 0x01) /* read/write */
#define MAIN_CNTRL0_SR BIT(0)
#define MAIN_CNTRL0_DECS BIT(1)
#define MAIN_CNTRL0_DEHS BIT(2)
#define MAIN_CNTRL0_CECS BIT(3)
#define MAIN_CNTRL0_CEHS BIT(4)
#define MAIN_CNTRL0_SCALER BIT(7)
#define REG_VERSION_MSB REG(0x00, 0x02) /* read */
#define REG_SOFTRESET REG(0x00, 0x0a) /* write */
#define SOFTRESET_AUDIO BIT(0)
#define SOFTRESET_I2C_MASTER BIT(1)
#define REG_DDC_DISABLE REG(0x00, 0x0b) /* read/write */
#define REG_I2C_MASTER REG(0x00, 0x0d) /* read/write */
#define I2C_MASTER_DIS_MM BIT(0)
#define I2C_MASTER_DIS_FILT BIT(1)
#define I2C_MASTER_APP_STRT_LAT BIT(2)
#define REG_FEAT_POWERDOWN REG(0x00, 0x0e) /* read/write */
#define FEAT_POWERDOWN_PREFILT BIT(0)
#define FEAT_POWERDOWN_CSC BIT(1)
#define FEAT_POWERDOWN_SPDIF BIT(3)
#define REG_INT_FLAGS_0 REG(0x00, 0x0f) /* read/write */
#define REG_INT_FLAGS_1 REG(0x00, 0x10) /* read/write */
#define REG_INT_FLAGS_2 REG(0x00, 0x11) /* read/write */
#define INT_FLAGS_2_EDID_BLK_RD BIT(1)
#define REG_ENA_VP_0 REG(0x00, 0x18) /* read/write */
#define REG_ENA_VP_1 REG(0x00, 0x19) /* read/write */
#define REG_ENA_VP_2 REG(0x00, 0x1a) /* read/write */
#define REG_ENA_AP REG(0x00, 0x1e) /* read/write */
#define REG_VIP_CNTRL_0 REG(0x00, 0x20) /* write */
#define VIP_CNTRL_0_MIRR_A BIT(7)
#define VIP_CNTRL_0_SWAP_A(x) (((x) & 7) << 4)
#define VIP_CNTRL_0_MIRR_B BIT(3)
#define VIP_CNTRL_0_SWAP_B(x) (((x) & 7) << 0)
#define REG_VIP_CNTRL_1 REG(0x00, 0x21) /* write */
#define VIP_CNTRL_1_MIRR_C BIT(7)
#define VIP_CNTRL_1_SWAP_C(x) (((x) & 7) << 4)
#define VIP_CNTRL_1_MIRR_D BIT(3)
#define VIP_CNTRL_1_SWAP_D(x) (((x) & 7) << 0)
#define REG_VIP_CNTRL_2 REG(0x00, 0x22) /* write */
#define VIP_CNTRL_2_MIRR_E BIT(7)
#define VIP_CNTRL_2_SWAP_E(x) (((x) & 7) << 4)
#define VIP_CNTRL_2_MIRR_F BIT(3)
#define VIP_CNTRL_2_SWAP_F(x) (((x) & 7) << 0)
#define REG_VIP_CNTRL_3 REG(0x00, 0x23) /* write */
#define VIP_CNTRL_3_X_TGL BIT(0)
#define VIP_CNTRL_3_H_TGL BIT(1)
#define VIP_CNTRL_3_V_TGL BIT(2)
#define VIP_CNTRL_3_EMB BIT(3)
#define VIP_CNTRL_3_SYNC_DE BIT(4)
#define VIP_CNTRL_3_SYNC_HS BIT(5)
#define VIP_CNTRL_3_DE_INT BIT(6)
#define VIP_CNTRL_3_EDGE BIT(7)
#define REG_VIP_CNTRL_4 REG(0x00, 0x24) /* write */
#define VIP_CNTRL_4_BLC(x) (((x) & 3) << 0)
#define VIP_CNTRL_4_BLANKIT(x) (((x) & 3) << 2)
#define VIP_CNTRL_4_CCIR656 BIT(4)
#define VIP_CNTRL_4_656_ALT BIT(5)
#define VIP_CNTRL_4_TST_656 BIT(6)
#define VIP_CNTRL_4_TST_PAT BIT(7)
#define REG_VIP_CNTRL_5 REG(0x00, 0x25) /* write */
#define VIP_CNTRL_5_CKCASE BIT(0)
#define VIP_CNTRL_5_SP_CNT(x) (((x) & 3) << 1)
#define REG_MUX_VP_VIP_OUT REG(0x00, 0x27) /* read/write */
#define REG_MAT_CONTRL REG(0x00, 0x80) /* write */
#define MAT_CONTRL_MAT_SC(x) (((x) & 3) << 0)
#define MAT_CONTRL_MAT_BP BIT(2)
#define REG_VIDFORMAT REG(0x00, 0xa0) /* write */
#define REG_REFPIX_MSB REG(0x00, 0xa1) /* write */
#define REG_REFPIX_LSB REG(0x00, 0xa2) /* write */
#define REG_REFLINE_MSB REG(0x00, 0xa3) /* write */
#define REG_REFLINE_LSB REG(0x00, 0xa4) /* write */
#define REG_NPIX_MSB REG(0x00, 0xa5) /* write */
#define REG_NPIX_LSB REG(0x00, 0xa6) /* write */
#define REG_NLINE_MSB REG(0x00, 0xa7) /* write */
#define REG_NLINE_LSB REG(0x00, 0xa8) /* write */
#define REG_VS_LINE_STRT_1_MSB REG(0x00, 0xa9) /* write */
#define REG_VS_LINE_STRT_1_LSB REG(0x00, 0xaa) /* write */
#define REG_VS_PIX_STRT_1_MSB REG(0x00, 0xab) /* write */
#define REG_VS_PIX_STRT_1_LSB REG(0x00, 0xac) /* write */
#define REG_VS_LINE_END_1_MSB REG(0x00, 0xad) /* write */
#define REG_VS_LINE_END_1_LSB REG(0x00, 0xae) /* write */
#define REG_VS_PIX_END_1_MSB REG(0x00, 0xaf) /* write */
#define REG_VS_PIX_END_1_LSB REG(0x00, 0xb0) /* write */
#define REG_VS_LINE_STRT_2_MSB REG(0x00, 0xb1) /* write */
#define REG_VS_LINE_STRT_2_LSB REG(0x00, 0xb2) /* write */
#define REG_VS_PIX_STRT_2_MSB REG(0x00, 0xb3) /* write */
#define REG_VS_PIX_STRT_2_LSB REG(0x00, 0xb4) /* write */
#define REG_VS_LINE_END_2_MSB REG(0x00, 0xb5) /* write */
#define REG_VS_LINE_END_2_LSB REG(0x00, 0xb6) /* write */
#define REG_VS_PIX_END_2_MSB REG(0x00, 0xb7) /* write */
#define REG_VS_PIX_END_2_LSB REG(0x00, 0xb8) /* write */
#define REG_HS_PIX_START_MSB REG(0x00, 0xb9) /* write */
#define REG_HS_PIX_START_LSB REG(0x00, 0xba) /* write */
#define REG_HS_PIX_STOP_MSB REG(0x00, 0xbb) /* write */
#define REG_HS_PIX_STOP_LSB REG(0x00, 0xbc) /* write */
#define REG_VWIN_START_1_MSB REG(0x00, 0xbd) /* write */
#define REG_VWIN_START_1_LSB REG(0x00, 0xbe) /* write */
#define REG_VWIN_END_1_MSB REG(0x00, 0xbf) /* write */
#define REG_VWIN_END_1_LSB REG(0x00, 0xc0) /* write */
#define REG_VWIN_START_2_MSB REG(0x00, 0xc1) /* write */
#define REG_VWIN_START_2_LSB REG(0x00, 0xc2) /* write */
#define REG_VWIN_END_2_MSB REG(0x00, 0xc3) /* write */
#define REG_VWIN_END_2_LSB REG(0x00, 0xc4) /* write */
#define REG_DE_START_MSB REG(0x00, 0xc5) /* write */
#define REG_DE_START_LSB REG(0x00, 0xc6) /* write */
#define REG_DE_STOP_MSB REG(0x00, 0xc7) /* write */
#define REG_DE_STOP_LSB REG(0x00, 0xc8) /* write */
#define REG_TBG_CNTRL_0 REG(0x00, 0xca) /* write */
#define TBG_CNTRL_0_TOP_TGL BIT(0)
#define TBG_CNTRL_0_TOP_SEL BIT(1)
#define TBG_CNTRL_0_DE_EXT BIT(2)
#define TBG_CNTRL_0_TOP_EXT BIT(3)
#define TBG_CNTRL_0_FRAME_DIS BIT(5)
#define TBG_CNTRL_0_SYNC_MTHD BIT(6)
#define TBG_CNTRL_0_SYNC_ONCE BIT(7)
#define REG_TBG_CNTRL_1 REG(0x00, 0xcb) /* write */
#define TBG_CNTRL_1_H_TGL BIT(0)
#define TBG_CNTRL_1_V_TGL BIT(1)
#define TBG_CNTRL_1_TGL_EN BIT(2)
#define TBG_CNTRL_1_X_EXT BIT(3)
#define TBG_CNTRL_1_H_EXT BIT(4)
#define TBG_CNTRL_1_V_EXT BIT(5)
#define TBG_CNTRL_1_DWIN_DIS BIT(6)
#define REG_ENABLE_SPACE REG(0x00, 0xd6) /* write */
#define REG_HVF_CNTRL_0 REG(0x00, 0xe4) /* write */
#define HVF_CNTRL_0_SM BIT(7)
#define HVF_CNTRL_0_RWB BIT(6)
#define HVF_CNTRL_0_PREFIL(x) (((x) & 3) << 2)
#define HVF_CNTRL_0_INTPOL(x) (((x) & 3) << 0)
#define REG_HVF_CNTRL_1 REG(0x00, 0xe5) /* write */
#define HVF_CNTRL_1_FOR BIT(0)
#define HVF_CNTRL_1_YUVBLK BIT(1)
#define HVF_CNTRL_1_VQR(x) (((x) & 3) << 2)
#define HVF_CNTRL_1_PAD(x) (((x) & 3) << 4)
#define REG_RPT_CNTRL REG(0x00, 0xf0) /* write */
#define REG_AIP_CLKSEL REG(0x00, 0xfd) /* write */
#define AIP_CLKSEL_AIP_SPDIF (0 << 3)
#define AIP_CLKSEL_AIP_I2S BIT(3)
#define AIP_CLKSEL_FS_ACLK (0 << 0)
#define AIP_CLKSEL_FS_MCLK BIT(0)
/* Page 02h: PLL settings */
#define REG_PLL_SERIAL_1 REG(0x02, 0x00) /* read/write */
#define PLL_SERIAL_1_SRL_FDN BIT(0)
#define PLL_SERIAL_1_SRL_IZ(x) (((x) & 3) << 1)
#define PLL_SERIAL_1_SRL_MAN_IZ BIT(6)
#define REG_PLL_SERIAL_2 REG(0x02, 0x01) /* read/write */
#define PLL_SERIAL_2_SRL_NOSC(x) ((x) << 0)
#define PLL_SERIAL_2_SRL_PR(x) (((x) & 0xf) << 4)
#define REG_PLL_SERIAL_3 REG(0x02, 0x02) /* read/write */
#define PLL_SERIAL_3_SRL_CCIR BIT(0)
#define PLL_SERIAL_3_SRL_DE BIT(2)
#define PLL_SERIAL_3_SRL_PXIN_SEL BIT(4)
#define REG_SERIALIZER REG(0x02, 0x03) /* read/write */
#define REG_BUFFER_OUT REG(0x02, 0x04) /* read/write */
#define REG_PLL_SCG1 REG(0x02, 0x05) /* read/write */
#define REG_PLL_SCG2 REG(0x02, 0x06) /* read/write */
#define REG_PLL_SCGN1 REG(0x02, 0x07) /* read/write */
#define REG_PLL_SCGN2 REG(0x02, 0x08) /* read/write */
#define REG_PLL_SCGR1 REG(0x02, 0x09) /* read/write */
#define REG_PLL_SCGR2 REG(0x02, 0x0a) /* read/write */
#define REG_AUDIO_DIV REG(0x02, 0x0e) /* read/write */
#define AUDIO_DIV_SERCLK_1 0
#define AUDIO_DIV_SERCLK_2 1
#define AUDIO_DIV_SERCLK_4 2
#define AUDIO_DIV_SERCLK_8 3
#define AUDIO_DIV_SERCLK_16 4
#define AUDIO_DIV_SERCLK_32 5
#define REG_SEL_CLK REG(0x02, 0x11) /* read/write */
#define SEL_CLK_SEL_CLK1 BIT(0)
#define SEL_CLK_SEL_VRF_CLK(x) (((x) & 3) << 1)
#define SEL_CLK_ENA_SC_CLK BIT(3)
#define REG_ANA_GENERAL REG(0x02, 0x12) /* read/write */
/* Page 09h: EDID Control */
#define REG_EDID_DATA_0 REG(0x09, 0x00) /* read */
/* next 127 successive registers are the EDID block */
#define REG_EDID_CTRL REG(0x09, 0xfa) /* read/write */
#define REG_DDC_ADDR REG(0x09, 0xfb) /* read/write */
#define REG_DDC_OFFS REG(0x09, 0xfc) /* read/write */
#define REG_DDC_SEGM_ADDR REG(0x09, 0xfd) /* read/write */
#define REG_DDC_SEGM REG(0x09, 0xfe) /* read/write */
/* Page 11h: audio settings and content info packets */
#define REG_AIP_CNTRL_0 REG(0x11, 0x00) /* read/write */
#define AIP_CNTRL_0_RST_FIFO BIT(0)
#define REG_ENC_CNTRL REG(0x11, 0x0d) /* read/write */
#define ENC_CNTRL_RST_ENC BIT(0)
#define ENC_CNTRL_RST_SEL BIT(1)
#define ENC_CNTRL_CTL_CODE(x) (((x) & 3) << 2)
/* Page 12h: HDCP and OTP */
#define REG_TX3 REG(0x12, 0x9a) /* read/write */
#define REG_TX4 REG(0x12, 0x9b) /* read/write */
#define TX4_PD_RAM BIT(1)
#define REG_TX33 REG(0x12, 0xb8) /* read/write */
#define TX33_HDMI BIT(1)
/* CEC registers, not paged */
#define REG_CEC_FRO_IM_CLK_CTRL 0xfb /* read/write */
#define CEC_FRO_IM_CLK_CTRL_GHOST_DIS BIT(7)
#define CEC_FRO_IM_CLK_CTRL_ENA_OTP BIT(6)
#define CEC_FRO_IM_CLK_CTRL_IMCLK_SEL BIT(1)
#define CEC_FRO_IM_CLK_CTRL_FRO_DIV BIT(0)
#define REG_CEC_RXSHPDINTENA 0xfc /* read/write */
#define REG_CEC_RXSHPDINT 0xfd /* read */
#define CEC_RXSHPDINT_RXSENS BIT(0)
#define CEC_RXSHPDINT_HPD BIT(1)
#define TDA19988_CEC_ENAMODS 0xff /* read/write */
#define CEC_ENAMODS_EN_RXSENS BIT(2)
#define CEC_ENAMODS_EN_HDMI BIT(1)
#define CEC_ENAMODS_EN_CEC BIT(0)
/* Device versions */
#define TDA9989N2 0x0101
#define TDA19989 0x0201
#define TDA19989N2 0x0202
#define TDA19988 0x0301
struct tda19988_priv {
struct udevice *chip;
struct udevice *cec_chip;
u16 revision;
u8 current_page;
};
static void tda19988_register_set(struct tda19988_priv *priv, u16 reg, u8 val)
{
u8 old_val, page = REG2PAGE(reg);
if (priv->current_page != page) {
dm_i2c_reg_write(priv->chip, REG_CURRENT_PAGE, page);
priv->current_page = page;
}
old_val = dm_i2c_reg_read(priv->chip, REG2ADDR(reg));
old_val |= val;
dm_i2c_reg_write(priv->chip, REG2ADDR(reg), old_val);
}
static void tda19988_register_clear(struct tda19988_priv *priv, u16 reg, u8 val)
{
u8 old_val, page = REG2PAGE(reg);
if (priv->current_page != page) {
dm_i2c_reg_write(priv->chip, REG_CURRENT_PAGE, page);
priv->current_page = page;
}
old_val = dm_i2c_reg_read(priv->chip, REG2ADDR(reg));
old_val &= ~val;
dm_i2c_reg_write(priv->chip, REG2ADDR(reg), old_val);
}
static void tda19988_register_write(struct tda19988_priv *priv, u16 reg, u8 val)
{
u8 page = REG2PAGE(reg);
if (priv->current_page != page) {
dm_i2c_reg_write(priv->chip, REG_CURRENT_PAGE, page);
priv->current_page = page;
}
dm_i2c_reg_write(priv->chip, REG2ADDR(reg), val);
}
static int tda19988_register_read(struct tda19988_priv *priv, u16 reg)
{
u8 page = REG2PAGE(reg);
if (priv->current_page != page) {
dm_i2c_reg_write(priv->chip, REG_CURRENT_PAGE, page);
priv->current_page = page;
}
return dm_i2c_reg_read(priv->chip, REG2ADDR(reg));
}
static void tda19988_register_write16(struct tda19988_priv *priv,
u16 reg, u16 val)
{
u8 buf[] = { val >> 8, val }, page = REG2PAGE(reg);
if (priv->current_page != page) {
dm_i2c_reg_write(priv->chip, REG_CURRENT_PAGE, page);
priv->current_page = page;
}
dm_i2c_write(priv->chip, REG2ADDR(reg), buf, 2);
}
static int tda19988_read_edid(struct udevice *dev, u8 *buf, int buf_size)
{
struct tda19988_priv *priv = dev_get_priv(dev);
int i, val = 0, offset = 0;
/*
* The TDA998x has a problem when trying to read the EDID close to a
* HPD assertion: it needs a delay of 100ms to avoid timing out while
* trying to read EDID data.
*/
mdelay(120);
if (priv->revision == TDA19988)
tda19988_register_clear(priv, REG_TX4, TX4_PD_RAM);
while (offset < buf_size) {
tda19988_register_write(priv, REG_DDC_ADDR, 0xa0);
tda19988_register_write(priv, REG_DDC_OFFS, offset);
tda19988_register_write(priv, REG_DDC_SEGM_ADDR, 0x60);
tda19988_register_write(priv, REG_DDC_SEGM, 0);
/* enable reading EDID */
tda19988_register_write(priv, REG_EDID_CTRL, 1);
/* flags must be cleared by software */
tda19988_register_write(priv, REG_EDID_CTRL, 0);
/* wait for block read to complete */
for (i = 300; i > 0; i--) {
mdelay(1);
val = tda19988_register_read(priv, REG_INT_FLAGS_2);
if (val < 0)
return val;
if (val & INT_FLAGS_2_EDID_BLK_RD)
break;
}
if (i == 0)
return -ETIMEDOUT;
priv->current_page = REG2PAGE(REG_EDID_DATA_0);
dm_i2c_reg_write(priv->chip,
REG_CURRENT_PAGE, REG2PAGE(REG_EDID_DATA_0));
val = dm_i2c_read(priv->chip,
REG2ADDR(REG_EDID_DATA_0), buf + offset, 128);
offset += 128;
}
if (priv->revision == TDA19988)
tda19988_register_set(priv, REG_TX4, TX4_PD_RAM);
return offset;
}
static int tda19988_enable(struct udevice *dev, int panel_bpp,
const struct display_timing *timing)
{
struct tda19988_priv *priv = dev_get_priv(dev);
u8 div = 148500000 / timing->pixelclock.typ, reg;
u16 line_clocks, lines;
if (dev != 0) {
div--;
if (div > 3)
div = 3;
}
/* first disable the video ports */
tda19988_register_write(priv, REG_ENA_VP_0, 0);
tda19988_register_write(priv, REG_ENA_VP_1, 0);
tda19988_register_write(priv, REG_ENA_VP_2, 0);
/* shutdown audio */
tda19988_register_write(priv, REG_ENA_AP, 0);
line_clocks = timing->hsync_len.typ + timing->hback_porch.typ +
timing->hactive.typ + timing->hfront_porch.typ;
lines = timing->vsync_len.typ + timing->vback_porch.typ +
timing->vactive.typ + timing->vfront_porch.typ;
/* mute the audio FIFO */
tda19988_register_set(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_FIFO);
/* HDMI HDCP: off */
tda19988_register_write(priv, REG_TBG_CNTRL_1, TBG_CNTRL_1_DWIN_DIS);
tda19988_register_clear(priv, REG_TX33, TX33_HDMI);
tda19988_register_write(priv, REG_ENC_CNTRL, ENC_CNTRL_CTL_CODE(0));
/* no pre-filter or interpolator */
tda19988_register_write(priv, REG_HVF_CNTRL_0, HVF_CNTRL_0_PREFIL(0) |
HVF_CNTRL_0_INTPOL(0));
tda19988_register_set(priv, REG_FEAT_POWERDOWN,
FEAT_POWERDOWN_PREFILT);
tda19988_register_write(priv, REG_VIP_CNTRL_5, VIP_CNTRL_5_SP_CNT(0));
tda19988_register_write(priv, REG_VIP_CNTRL_4,
VIP_CNTRL_4_BLANKIT(0) | VIP_CNTRL_4_BLC(0) |
VIP_CNTRL_4_TST_PAT);
tda19988_register_clear(priv, REG_PLL_SERIAL_1,
PLL_SERIAL_1_SRL_MAN_IZ);
tda19988_register_clear(priv, REG_PLL_SERIAL_3, PLL_SERIAL_3_SRL_CCIR |
PLL_SERIAL_3_SRL_DE);
tda19988_register_write(priv, REG_SERIALIZER, 0);
tda19988_register_write(priv, REG_HVF_CNTRL_1, HVF_CNTRL_1_VQR(0));
tda19988_register_write(priv, REG_RPT_CNTRL, 0);
tda19988_register_write(priv, REG_SEL_CLK, SEL_CLK_SEL_VRF_CLK(0) |
SEL_CLK_SEL_CLK1 | SEL_CLK_ENA_SC_CLK);
tda19988_register_write(priv, REG_PLL_SERIAL_2,
PLL_SERIAL_2_SRL_NOSC(div) |
PLL_SERIAL_2_SRL_PR(0));
/* set color matrix bypass flag: */
tda19988_register_write(priv, REG_MAT_CONTRL, MAT_CONTRL_MAT_BP |
MAT_CONTRL_MAT_SC(1));
tda19988_register_set(priv, REG_FEAT_POWERDOWN, FEAT_POWERDOWN_CSC);
/* set BIAS tmds value: */
tda19988_register_write(priv, REG_ANA_GENERAL, 0x09);
/*
* Sync on rising HSYNC/VSYNC
*/
reg = VIP_CNTRL_3_SYNC_HS;
/*
* TDA19988 requires high-active sync at input stage,
* so invert low-active sync provided by master encoder here
*/
if (timing->flags & DISPLAY_FLAGS_HSYNC_LOW)
reg |= VIP_CNTRL_3_H_TGL;
if (timing->flags & DISPLAY_FLAGS_VSYNC_LOW)
reg |= VIP_CNTRL_3_V_TGL;
tda19988_register_write(priv, REG_VIP_CNTRL_3, reg);
tda19988_register_write(priv, REG_VIDFORMAT, 0x00);
tda19988_register_write16(priv, REG_REFPIX_MSB,
timing->hfront_porch.typ + 3);
tda19988_register_write16(priv, REG_REFLINE_MSB,
timing->vfront_porch.typ + 1);
tda19988_register_write16(priv, REG_NPIX_MSB, line_clocks);
tda19988_register_write16(priv, REG_NLINE_MSB, lines);
tda19988_register_write16(priv, REG_VS_LINE_STRT_1_MSB,
timing->vfront_porch.typ);
tda19988_register_write16(priv, REG_VS_PIX_STRT_1_MSB,
timing->hfront_porch.typ);
tda19988_register_write16(priv, REG_VS_LINE_END_1_MSB,
timing->vfront_porch.typ +
timing->vsync_len.typ);
tda19988_register_write16(priv, REG_VS_PIX_END_1_MSB,
timing->hfront_porch.typ);
tda19988_register_write16(priv, REG_VS_LINE_STRT_2_MSB, 0);
tda19988_register_write16(priv, REG_VS_PIX_STRT_2_MSB, 0);
tda19988_register_write16(priv, REG_VS_LINE_END_2_MSB, 0);
tda19988_register_write16(priv, REG_VS_PIX_END_2_MSB, 0);
tda19988_register_write16(priv, REG_HS_PIX_START_MSB,
timing->hfront_porch.typ);
tda19988_register_write16(priv, REG_HS_PIX_STOP_MSB,
timing->hfront_porch.typ +
timing->hsync_len.typ);
tda19988_register_write16(priv, REG_VWIN_START_1_MSB,
lines - timing->vactive.typ - 1);
tda19988_register_write16(priv, REG_VWIN_END_1_MSB, lines - 1);
tda19988_register_write16(priv, REG_VWIN_START_2_MSB, 0);
tda19988_register_write16(priv, REG_VWIN_END_2_MSB, 0);
tda19988_register_write16(priv, REG_DE_START_MSB,
line_clocks - timing->hactive.typ);
tda19988_register_write16(priv, REG_DE_STOP_MSB, line_clocks);
if (priv->revision == TDA19988) {
/* let incoming pixels fill the active space (if any) */
tda19988_register_write(priv, REG_ENABLE_SPACE, 0x00);
}
/*
* Always generate sync polarity relative to input sync and
* revert input stage toggled sync at output stage
*/
reg = TBG_CNTRL_1_DWIN_DIS | TBG_CNTRL_1_TGL_EN;
if (timing->flags & DISPLAY_FLAGS_HSYNC_LOW)
reg |= TBG_CNTRL_1_H_TGL;
if (timing->flags & DISPLAY_FLAGS_VSYNC_LOW)
reg |= TBG_CNTRL_1_V_TGL;
tda19988_register_write(priv, REG_TBG_CNTRL_1, reg);
/* must be last register set: */
tda19988_register_write(priv, REG_TBG_CNTRL_0, 0);
/* turn on HDMI HDCP */
reg &= ~TBG_CNTRL_1_DWIN_DIS;
tda19988_register_write(priv, REG_TBG_CNTRL_1, reg);
tda19988_register_write(priv, REG_ENC_CNTRL, ENC_CNTRL_CTL_CODE(1));
tda19988_register_set(priv, REG_TX33, TX33_HDMI);
mdelay(400);
/* enable video ports */
tda19988_register_write(priv, REG_ENA_VP_0, 0xff);
tda19988_register_write(priv, REG_ENA_VP_1, 0xff);
tda19988_register_write(priv, REG_ENA_VP_2, 0xff);
/* set muxing after enabling ports: */
tda19988_register_write(priv, REG_VIP_CNTRL_0,
VIP_CNTRL_0_SWAP_A(2) | VIP_CNTRL_0_SWAP_B(3));
tda19988_register_write(priv, REG_VIP_CNTRL_1,
VIP_CNTRL_1_SWAP_C(4) | VIP_CNTRL_1_SWAP_D(5));
tda19988_register_write(priv, REG_VIP_CNTRL_2,
VIP_CNTRL_2_SWAP_E(0) | VIP_CNTRL_2_SWAP_F(1));
return 0;
}
struct dm_display_ops tda19988_ops = {
.read_edid = tda19988_read_edid,
.enable = tda19988_enable,
};
static const struct udevice_id tda19988_ids[] = {
{ .compatible = "nxp,tda998x" },
{ }
};
static int tda19988_probe(struct udevice *dev)
{
u8 cec_addr, chip_addr, rev_lo, rev_hi;
int err;
struct tda19988_priv *priv = dev_get_priv(dev);
chip_addr = dev_read_addr(dev);
/* CEC I2C address is using TDA19988 I2C address configuration pins */
cec_addr = 0x34 + (chip_addr & 0x03);
err = i2c_get_chip_for_busnum(0, cec_addr, 1, &priv->cec_chip);
if (err) {
printf("cec i2c_get_chip_for_busnum returned %d\n", err);
return err;
}
err = i2c_get_chip_for_busnum(0, chip_addr, 1, &priv->chip);
if (err) {
printf("i2c_get_chip_for_busnum returned %d\n", err);
return err;
}
priv->current_page = 0xff;
/* wake up device */
dm_i2c_reg_write(priv->cec_chip, TDA19988_CEC_ENAMODS,
CEC_ENAMODS_EN_RXSENS | CEC_ENAMODS_EN_HDMI);
/* reset audio and I2C master */
tda19988_register_write(priv, REG_SOFTRESET,
SOFTRESET_AUDIO | SOFTRESET_I2C_MASTER);
mdelay(50);
tda19988_register_write(priv, REG_SOFTRESET, 0);
mdelay(50);
/* reset transmitter */
tda19988_register_set(priv, REG_MAIN_CNTRL0, MAIN_CNTRL0_SR);
tda19988_register_clear(priv, REG_MAIN_CNTRL0, MAIN_CNTRL0_SR);
/* PLL registers common configuration */
tda19988_register_write(priv, REG_PLL_SERIAL_1, 0x00);
tda19988_register_write(priv, REG_PLL_SERIAL_2,
PLL_SERIAL_2_SRL_NOSC(1));
tda19988_register_write(priv, REG_PLL_SERIAL_3, 0x00);
tda19988_register_write(priv, REG_SERIALIZER, 0x00);
tda19988_register_write(priv, REG_BUFFER_OUT, 0x00);
tda19988_register_write(priv, REG_PLL_SCG1, 0x00);
tda19988_register_write(priv, REG_AUDIO_DIV, AUDIO_DIV_SERCLK_8);
tda19988_register_write(priv, REG_SEL_CLK,
SEL_CLK_SEL_CLK1 | SEL_CLK_ENA_SC_CLK);
tda19988_register_write(priv, REG_PLL_SCGN1, 0xfa);
tda19988_register_write(priv, REG_PLL_SCGN2, 0x00);
tda19988_register_write(priv, REG_PLL_SCGR1, 0x5b);
tda19988_register_write(priv, REG_PLL_SCGR2, 0x00);
tda19988_register_write(priv, REG_PLL_SCG2, 0x10);
/* Write the default value MUX register */
tda19988_register_write(priv, REG_MUX_VP_VIP_OUT, 0x24);
/* read version */
rev_lo = dm_i2c_reg_read(priv->chip, REG_VERSION_LSB);
rev_hi = dm_i2c_reg_read(priv->chip, REG_VERSION_MSB);
/* mask off feature bits */
priv->revision = ((rev_hi << 8) | rev_lo) & ~0x30;
printf("HDMI: ");
switch (priv->revision) {
case TDA9989N2:
printf("TDA9989 n2\n");
break;
case TDA19989:
printf("TDA19989\n");
break;
case TDA19989N2:
printf("TDA19989 n2\n");
break;
case TDA19988:
printf("TDA19988\n");
break;
default:
printf("unknown TDA device: 0x%04x\n", priv->revision);
return -ENXIO;
}
/* after reset, enable DDC */
tda19988_register_write(priv, REG_DDC_DISABLE, 0x00);
/* set clock on DDC channel */
tda19988_register_write(priv, REG_TX3, 39);
/* if necessary, disable multi-master */
if (priv->revision == TDA19989)
tda19988_register_set(priv, REG_I2C_MASTER, I2C_MASTER_DIS_MM);
dm_i2c_reg_write(priv->cec_chip, REG_CEC_FRO_IM_CLK_CTRL,
CEC_FRO_IM_CLK_CTRL_GHOST_DIS |
CEC_FRO_IM_CLK_CTRL_IMCLK_SEL);
/* ensure interrupts are disabled */
dm_i2c_reg_write(priv->cec_chip, REG_CEC_RXSHPDINTENA, 0);
/* clear pending interrupts */
dm_i2c_reg_read(priv->cec_chip, REG_CEC_RXSHPDINT);
tda19988_register_read(priv, REG_INT_FLAGS_0);
tda19988_register_read(priv, REG_INT_FLAGS_1);
tda19988_register_read(priv, REG_INT_FLAGS_2);
/* enable EDID read irq */
tda19988_register_set(priv, REG_INT_FLAGS_2, INT_FLAGS_2_EDID_BLK_RD);
return 0;
}
U_BOOT_DRIVER(tda19988) = {
.name = "tda19988",
.id = UCLASS_DISPLAY,
.of_match = tda19988_ids,
.ops = &tda19988_ops,
.probe = tda19988_probe,
.priv_auto = sizeof(struct tda19988_priv),
};
Reference in a new issue View git blame Copy permalink