[alsa-devel] [PATCH v7 4/6] media: i2c: Add TDA1997x HDMI receiver driver

Add support for the TDA1997x HDMI receivers.

Cc: Hans Verkuil hverkuil@xs4all.nl Signed-off-by: Tim Harvey tharvey@gateworks.com --- v7: - fix interlaced mode - support no AVI infoframe (ie DVI) (Hans) - add support for multiple output formats (Hans)

v6: - fix return on regulator enablei in tda1997x_set_power() - replace copyright with SPDX tag - fix colorspace handling

v5: - uppercase string constants - use v4l2_hdmi_rx_coloriemtry to fill format - fix V4L2_CID_DV_RX_RGB_RANGE - fix interlaced mode format

v4: - move include/dt-bindings/media/tda1997x.h to bindings patch - fix typos - fix default quant range for VGA - fix quant range handling and conv matrix - add additional standards and capabilities to timings_cap

v3: - use V4L2_DV_BT_FRAME_WIDTH/HEIGHT macros - fixed missing break - use only hdmi_infoframe_log for infoframe logging - simplify tda1997x_s_stream error handling - add delayed work proc to handle hotplug enable/disable - fix set_edid (disable HPD before writing, enable after) - remove enabling edid by default - initialize timings - take quant range into account in colorspace conversion - remove vendor/product tracking (we provide this in log_status via infoframes) - add v4l_controls - add more detail to log_status - calculate vhref generator timings - timing detection fixes (rounding errors, hswidth errors) - rename configure_input/configure_conv functions

v2: - implement dv timings enum/cap - remove deprecated g_mbus_config op - fix dv_query_timings - add EDID get/set handling - remove max-pixel-rate support - add audio codec DAI support - change audio bindings --- drivers/media/i2c/Kconfig | 9 + drivers/media/i2c/Makefile | 1 + drivers/media/i2c/tda1997x.c | 3501 ++++++++++++++++++++++++++++++++++++++++++ include/media/i2c/tda1997x.h | 42 + 4 files changed, 3553 insertions(+) create mode 100644 drivers/media/i2c/tda1997x.c create mode 100644 include/media/i2c/tda1997x.h

diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index 3c6d642..abf24b9 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -56,6 +56,15 @@ config VIDEO_TDA9840 To compile this driver as a module, choose M here: the module will be called tda9840.

+config VIDEO_TDA1997X + tristate "NXP TDA1997x HDMI receiver" + depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API + ---help--- + V4L2 subdevice driver for the NXP TDA1997x HDMI receivers. + + To compile this driver as a module, choose M here: the + module will be called tda1997x. + config VIDEO_TEA6415C tristate "Philips TEA6415C audio processor" depends on I2C diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile index 548a9ef..adfcae9 100644 --- a/drivers/media/i2c/Makefile +++ b/drivers/media/i2c/Makefile @@ -13,6 +13,7 @@ obj-$(CONFIG_VIDEO_TVAUDIO) += tvaudio.o obj-$(CONFIG_VIDEO_TDA7432) += tda7432.o obj-$(CONFIG_VIDEO_SAA6588) += saa6588.o obj-$(CONFIG_VIDEO_TDA9840) += tda9840.o +obj-$(CONFIG_VIDEO_TDA1997X) += tda1997x.o obj-$(CONFIG_VIDEO_TEA6415C) += tea6415c.o obj-$(CONFIG_VIDEO_TEA6420) += tea6420.o obj-$(CONFIG_VIDEO_SAA7110) += saa7110.o diff --git a/drivers/media/i2c/tda1997x.c b/drivers/media/i2c/tda1997x.c new file mode 100644 index 0000000..f3720c1 --- /dev/null +++ b/drivers/media/i2c/tda1997x.c @@ -0,0 +1,3501 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2017 Gateworks Corporation + */ +#include <linux/delay.h> +#include <linux/hdmi.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of_graph.h> +#include <linux/platform_device.h> +#include <linux/regulator/consumer.h> +#include <linux/types.h> +#include <linux/v4l2-dv-timings.h> +#include <linux/videodev2.h> + +#include <media/v4l2-ctrls.h> +#include <media/v4l2-device.h> +#include <media/v4l2-dv-timings.h> +#include <media/v4l2-event.h> +#include <media/v4l2-fwnode.h> +#include <media/i2c/tda1997x.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> + +#include <dt-bindings/media/tda1997x.h> + +/* debug level */ +static int debug; +module_param(debug, int, 0644); +MODULE_PARM_DESC(debug, "debug level (0-2)"); + +/* Page 0x00 - General Control */ +#define REG_VERSION 0x0000 +#define REG_INPUT_SEL 0x0001 +#define REG_SVC_MODE 0x0002 +#define REG_HPD_MAN_CTRL 0x0003 +#define REG_RT_MAN_CTRL 0x0004 +#define REG_STANDBY_SOFT_RST 0x000A +#define REG_HDMI_SOFT_RST 0x000B +#define REG_HDMI_INFO_RST 0x000C +#define REG_INT_FLG_CLR_TOP 0x000E +#define REG_INT_FLG_CLR_SUS 0x000F +#define REG_INT_FLG_CLR_DDC 0x0010 +#define REG_INT_FLG_CLR_RATE 0x0011 +#define REG_INT_FLG_CLR_MODE 0x0012 +#define REG_INT_FLG_CLR_INFO 0x0013 +#define REG_INT_FLG_CLR_AUDIO 0x0014 +#define REG_INT_FLG_CLR_HDCP 0x0015 +#define REG_INT_FLG_CLR_AFE 0x0016 +#define REG_INT_MASK_TOP 0x0017 +#define REG_INT_MASK_SUS 0x0018 +#define REG_INT_MASK_DDC 0x0019 +#define REG_INT_MASK_RATE 0x001A +#define REG_INT_MASK_MODE 0x001B +#define REG_INT_MASK_INFO 0x001C +#define REG_INT_MASK_AUDIO 0x001D +#define REG_INT_MASK_HDCP 0x001E +#define REG_INT_MASK_AFE 0x001F +#define REG_DETECT_5V 0x0020 +#define REG_SUS_STATUS 0x0021 +#define REG_V_PER 0x0022 +#define REG_H_PER 0x0025 +#define REG_HS_WIDTH 0x0027 +#define REG_FMT_H_TOT 0x0029 +#define REG_FMT_H_ACT 0x002b +#define REG_FMT_H_FRONT 0x002d +#define REG_FMT_H_SYNC 0x002f +#define REG_FMT_H_BACK 0x0031 +#define REG_FMT_V_TOT 0x0033 +#define REG_FMT_V_ACT 0x0035 +#define REG_FMT_V_FRONT_F1 0x0037 +#define REG_FMT_V_FRONT_F2 0x0038 +#define REG_FMT_V_SYNC 0x0039 +#define REG_FMT_V_BACK_F1 0x003a +#define REG_FMT_V_BACK_F2 0x003b +#define REG_FMT_DE_ACT 0x003c +#define REG_RATE_CTRL 0x0040 +#define REG_CLK_MIN_RATE 0x0043 +#define REG_CLK_MAX_RATE 0x0046 +#define REG_CLK_A_STATUS 0x0049 +#define REG_CLK_A_RATE 0x004A +#define REG_DRIFT_CLK_A_REG 0x004D +#define REG_CLK_B_STATUS 0x004E +#define REG_CLK_B_RATE 0x004F +#define REG_DRIFT_CLK_B_REG 0x0052 +#define REG_HDCP_CTRL 0x0060 +#define REG_HDCP_KDS 0x0061 +#define REG_HDCP_BCAPS 0x0063 +#define REG_HDCP_KEY_CTRL 0x0064 +#define REG_INFO_CTRL 0x0076 +#define REG_INFO_EXCEED 0x0077 +#define REG_PIX_REPEAT 0x007B +#define REG_AUDIO_PATH 0x007C +#define REG_AUDCFG 0x007D +#define REG_AUDIO_OUT_ENABLE 0x007E +#define REG_AUDIO_OUT_HIZ 0x007F +#define REG_VDP_CTRL 0x0080 +#define REG_VDP_MATRIX 0x0081 +#define REG_VHREF_CTRL 0x00A0 +#define REG_PXCNT_PR 0x00A2 +#define REG_PXCNT_NPIX 0x00A4 +#define REG_LCNT_PR 0x00A6 +#define REG_LCNT_NLIN 0x00A8 +#define REG_HREF_S 0x00AA +#define REG_HREF_E 0x00AC +#define REG_HS_S 0x00AE +#define REG_HS_E 0x00B0 +#define REG_VREF_F1_S 0x00B2 +#define REG_VREF_F1_WIDTH 0x00B4 +#define REG_VREF_F2_S 0x00B5 +#define REG_VREF_F2_WIDTH 0x00B7 +#define REG_VS_F1_LINE_S 0x00B8 +#define REG_VS_F1_LINE_WIDTH 0x00BA +#define REG_VS_F2_LINE_S 0x00BB +#define REG_VS_F2_LINE_WIDTH 0x00BD +#define REG_VS_F1_PIX_S 0x00BE +#define REG_VS_F1_PIX_E 0x00C0 +#define REG_VS_F2_PIX_S 0x00C2 +#define REG_VS_F2_PIX_E 0x00C4 +#define REG_FREF_F1_S 0x00C6 +#define REG_FREF_F2_S 0x00C8 +#define REG_FDW_S 0x00ca +#define REG_FDW_E 0x00cc +#define REG_BLK_GY 0x00da +#define REG_BLK_BU 0x00dc +#define REG_BLK_RV 0x00de +#define REG_FILTERS_CTRL 0x00e0 +#define REG_DITHERING_CTRL 0x00E9 +#define REG_OF 0x00EA +#define REG_PCLK 0x00EB +#define REG_HS_HREF 0x00EC +#define REG_VS_VREF 0x00ED +#define REG_DE_FREF 0x00EE +#define REG_VP35_32_CTRL 0x00EF +#define REG_VP31_28_CTRL 0x00F0 +#define REG_VP27_24_CTRL 0x00F1 +#define REG_VP23_20_CTRL 0x00F2 +#define REG_VP19_16_CTRL 0x00F3 +#define REG_VP15_12_CTRL 0x00F4 +#define REG_VP11_08_CTRL 0x00F5 +#define REG_VP07_04_CTRL 0x00F6 +#define REG_VP03_00_CTRL 0x00F7 +#define REG_CURPAGE_00H 0xFF + +#define MASK_VPER 0x3fffff +#define MASK_VHREF 0x3fff +#define MASK_HPER 0x0fff +#define MASK_HSWIDTH 0x03ff + +/* HPD Detection */ +#define DETECT_UTIL BIT(7) /* utility of HDMI level */ +#define DETECT_HPD BIT(6) /* HPD of HDMI level */ +#define DETECT_5V_SEL BIT(2) /* 5V present on selected input */ +#define DETECT_5V_B BIT(1) /* 5V present on input B */ +#define DETECT_5V_A BIT(0) /* 5V present on input A */ + +/* Input Select */ +#define INPUT_SEL_RST_FMT BIT(7) /* 1=reset format measurement */ +#define INPUT_SEL_RST_VDP BIT(2) /* 1=reset video data path */ +#define INPUT_SEL_OUT_MODE BIT(1) /* 0=loop 1=bypass */ +#define INPUT_SEL_B BIT(0) /* 0=inputA 1=inputB */ + +/* Service Mode */ +#define SVC_MODE_CLK2_MASK 0xc0 +#define SVC_MODE_CLK2_SHIFT 6 +#define SVC_MODE_CLK2_XTL 0L +#define SVC_MODE_CLK2_XTLDIV2 1L +#define SVC_MODE_CLK2_HDMIX2 3L +#define SVC_MODE_CLK1_MASK 0x30 +#define SVC_MODE_CLK1_SHIFT 4 +#define SVC_MODE_CLK1_XTAL 0L +#define SVC_MODE_CLK1_XTLDIV2 1L +#define SVC_MODE_CLK1_HDMI 3L +#define SVC_MODE_RAMP BIT(3) /* 0=colorbar 1=ramp */ +#define SVC_MODE_PAL BIT(2) /* 0=NTSC(480i/p) 1=PAL(576i/p) */ +#define SVC_MODE_INT_PROG BIT(1) /* 0=interlaced 1=progressive */ +#define SVC_MODE_SM_ON BIT(0) /* Enable color bars and tone gen */ + +/* HDP Manual Control */ +#define HPD_MAN_CTRL_HPD_PULSE BIT(7) /* HPD Pulse low 110ms */ +#define HPD_MAN_CTRL_5VEN BIT(2) /* Output 5V */ +#define HPD_MAN_CTRL_HPD_B BIT(1) /* Assert HPD High for Input A */ +#define HPD_MAN_CTRL_HPD_A BIT(0) /* Assert HPD High for Input A */ + +/* RT_MAN_CTRL */ +#define RT_MAN_CTRL_RT_AUTO BIT(7) +#define RT_MAN_CTRL_RT BIT(6) +#define RT_MAN_CTRL_RT_B BIT(1) /* enable TMDS pull-up on Input B */ +#define RT_MAN_CTRL_RT_A BIT(0) /* enable TMDS pull-up on Input A */ + +/* VDP_CTRL */ +#define VDP_CTRL_COMPDEL_BP BIT(5) /* bypass compdel */ +#define VDP_CTRL_FORMATTER_BP BIT(4) /* bypass formatter */ +#define VDP_CTRL_PREFILTER_BP BIT(1) /* bypass prefilter */ +#define VDP_CTRL_MATRIX_BP BIT(0) /* bypass matrix conversion */ + +/* REG_VHREF_CTRL */ +#define VHREF_INT_DET BIT(7) /* interlace detect: 1=alt 0=frame */ +#define VHREF_VSYNC_MASK 0x60 +#define VHREF_VSYNC_SHIFT 6 +#define VHREF_VSYNC_AUTO 0L +#define VHREF_VSYNC_FDW 1L +#define VHREF_VSYNC_EVEN 2L +#define VHREF_VSYNC_ODD 3L +#define VHREF_STD_DET_MASK 0x18 +#define VHREF_STD_DET_SHIFT 3 +#define VHREF_STD_DET_PAL 0L +#define VHREF_STD_DET_NTSC 1L +#define VHREF_STD_DET_AUTO 2L +#define VHREF_STD_DET_OFF 3L +#define VHREF_VREF_SRC_STD BIT(2) /* 1=from standard 0=manual */ +#define VHREF_HREF_SRC_STD BIT(1) /* 1=from standard 0=manual */ +#define VHREF_HSYNC_SEL_HS BIT(0) /* 1=HS 0=VS */ + +/* AUDIO_OUT_ENABLE */ +#define AUDIO_OUT_ENABLE_ACLK BIT(5) +#define AUDIO_OUT_ENABLE_WS BIT(4) +#define AUDIO_OUT_ENABLE_AP3 BIT(3) +#define AUDIO_OUT_ENABLE_AP2 BIT(2) +#define AUDIO_OUT_ENABLE_AP1 BIT(1) +#define AUDIO_OUT_ENABLE_AP0 BIT(0) + +/* Prefilter Control */ +#define FILTERS_CTRL_BU_MASK 0x0c +#define FILTERS_CTRL_BU_SHIFT 2 +#define FILTERS_CTRL_RV_MASK 0x03 +#define FILTERS_CTRL_RV_SHIFT 0 +#define FILTERS_CTRL_OFF 0L /* off */ +#define FILTERS_CTRL_2TAP 1L /* 2 Taps */ +#define FILTERS_CTRL_7TAP 2L /* 7 Taps */ +#define FILTERS_CTRL_2_7TAP 3L /* 2/7 Taps */ + +/* PCLK Configuration */ +#define PCLK_DELAY_MASK 0x70 +#define PCLK_DELAY_SHIFT 4 /* Pixel delay (-8..+7) */ +#define PCLK_INV_SHIFT 2 +#define PCLK_SEL_MASK 0x03 /* clock scaler */ +#define PCLK_SEL_SHIFT 0 +#define PCLK_SEL_X1 0L +#define PCLK_SEL_X2 1L +#define PCLK_SEL_DIV2 2L +#define PCLK_SEL_DIV4 3L + +/* Pixel Repeater */ +#define PIX_REPEAT_MASK_UP_SEL 0x30 +#define PIX_REPEAT_MASK_REP 0x0f +#define PIX_REPEAT_SHIFT 4 +#define PIX_REPEAT_CHROMA 1 + +/* Page 0x01 - HDMI info and packets */ +#define REG_HDMI_FLAGS 0x0100 +#define REG_DEEP_COLOR_MODE 0x0101 +#define REG_AUDIO_FLAGS 0x0108 +#define REG_AUDIO_FREQ 0x0109 +#define REG_ACP_PACKET_TYPE 0x0141 +#define REG_ISRC1_PACKET_TYPE 0x0161 +#define REG_ISRC2_PACKET_TYPE 0x0181 +#define REG_GBD_PACKET_TYPE 0x01a1 + +/* HDMI_FLAGS */ +#define HDMI_FLAGS_AUDIO BIT(7) /* Audio packet in last videoframe */ +#define HDMI_FLAGS_HDMI BIT(6) /* HDMI detected */ +#define HDMI_FLAGS_EESS BIT(5) /* EESS detected */ +#define HDMI_FLAGS_HDCP BIT(4) /* HDCP detected */ +#define HDMI_FLAGS_AVMUTE BIT(3) /* AVMUTE */ +#define HDMI_FLAGS_AUD_LAYOUT BIT(2) /* Layout status Audio sample packet */ +#define HDMI_FLAGS_AUD_FIFO_OF BIT(1) /* FIFO read/write pointers crossed */ +#define HDMI_FLAGS_AUD_FIFO_LOW BIT(0) /* FIFO read ptr within 2 of write */ + +/* Page 0x12 - HDMI Extra control and debug */ +#define REG_CLK_CFG 0x1200 +#define REG_CLK_OUT_CFG 0x1201 +#define REG_CFG1 0x1202 +#define REG_CFG2 0x1203 +#define REG_WDL_CFG 0x1210 +#define REG_DELOCK_DELAY 0x1212 +#define REG_PON_OVR_EN 0x12A0 +#define REG_PON_CBIAS 0x12A1 +#define REG_PON_RESCAL 0x12A2 +#define REG_PON_RES 0x12A3 +#define REG_PON_CLK 0x12A4 +#define REG_PON_PLL 0x12A5 +#define REG_PON_EQ 0x12A6 +#define REG_PON_DES 0x12A7 +#define REG_PON_OUT 0x12A8 +#define REG_PON_MUX 0x12A9 +#define REG_MODE_REC_CFG1 0x12F8 +#define REG_MODE_REC_CFG2 0x12F9 +#define REG_MODE_REC_STS 0x12FA +#define REG_AUDIO_LAYOUT 0x12D0 + +#define PON_EN 1 +#define PON_DIS 0 + +/* CLK CFG */ +#define CLK_CFG_INV_OUT_CLK BIT(7) +#define CLK_CFG_INV_BUS_CLK BIT(6) +#define CLK_CFG_SEL_ACLK_EN BIT(1) +#define CLK_CFG_SEL_ACLK BIT(0) +#define CLK_CFG_DIS 0 + +/* Page 0x13 - HDMI Extra control and debug */ +#define REG_DEEP_COLOR_CTRL 0x1300 +#define REG_CGU_DBG_SEL 0x1305 +#define REG_HDCP_DDC_ADDR 0x1310 +#define REG_HDCP_KIDX 0x1316 +#define REG_DEEP_PLL7_BYP 0x1347 +#define REG_HDCP_DE_CTRL 0x1370 +#define REG_HDCP_EP_FILT_CTRL 0x1371 +#define REG_HDMI_CTRL 0x1377 +#define REG_HMTP_CTRL 0x137a +#define REG_TIMER_D 0x13CF +#define REG_SUS_SET_RGB0 0x13E1 +#define REG_SUS_SET_RGB1 0x13E2 +#define REG_SUS_SET_RGB2 0x13E3 +#define REG_SUS_SET_RGB3 0x13E4 +#define REG_SUS_SET_RGB4 0x13E5 +#define REG_MAN_SUS_HDMI_SEL 0x13E8 +#define REG_MAN_HDMI_SET 0x13E9 +#define REG_SUS_CLOCK_GOOD 0x13EF + +/* HDCP DE Control */ +#define HDCP_DE_MODE_MASK 0xc0 /* DE Measurement mode */ +#define HDCP_DE_MODE_SHIFT 6 +#define HDCP_DE_REGEN_EN BIT(5) /* enable regen mode */ +#define HDCP_DE_FILTER_MASK 0x18 /* DE filter sensitivity */ +#define HDCP_DE_FILTER_SHIFT 3 +#define HDCP_DE_COMP_MASK 0x07 /* DE Composition mode */ +#define HDCP_DE_COMP_MIXED 6L +#define HDCP_DE_COMP_OR 5L +#define HDCP_DE_COMP_AND 4L +#define HDCP_DE_COMP_CH3 3L +#define HDCP_DE_COMP_CH2 2L +#define HDCP_DE_COMP_CH1 1L +#define HDCP_DE_COMP_CH0 0L + +/* HDCP EP Filter Control */ +#define HDCP_EP_FIL_CTL_MASK 0x30 +#define HDCP_EP_FIL_CTL_SHIFT 4 +#define HDCP_EP_FIL_VS_MASK 0x0c +#define HDCP_EP_FIL_VS_SHIFT 2 +#define HDCP_EP_FIL_HS_MASK 0x03 +#define HDCP_EP_FIL_HS_SHIFT 0 + +/* HDMI_CTRL */ +#define HDMI_CTRL_MUTE_MASK 0x0c +#define HDMI_CTRL_MUTE_SHIFT 2 +#define HDMI_CTRL_MUTE_AUTO 0L +#define HDMI_CTRL_MUTE_OFF 1L +#define HDMI_CTRL_MUTE_ON 2L +#define HDMI_CTRL_HDCP_MASK 0x03 +#define HDMI_CTRL_HDCP_SHIFT 0 +#define HDMI_CTRL_HDCP_EESS 2L +#define HDMI_CTRL_HDCP_OESS 1L +#define HDMI_CTRL_HDCP_AUTO 0L + +/* CGU_DBG_SEL bits */ +#define CGU_DBG_CLK_SEL_MASK 0x18 +#define CGU_DBG_CLK_SEL_SHIFT 3 +#define CGU_DBG_XO_FRO_SEL BIT(2) +#define CGU_DBG_VDP_CLK_SEL BIT(1) +#define CGU_DBG_PIX_CLK_SEL BIT(0) + +/* REG_MAN_SUS_HDMI_SEL / REG_MAN_HDMI_SET bits */ +#define MAN_DIS_OUT_BUF BIT(7) +#define MAN_DIS_ANA_PATH BIT(6) +#define MAN_DIS_HDCP BIT(5) +#define MAN_DIS_TMDS_ENC BIT(4) +#define MAN_DIS_TMDS_FLOW BIT(3) +#define MAN_RST_HDCP BIT(2) +#define MAN_RST_TMDS_ENC BIT(1) +#define MAN_RST_TMDS_FLOW BIT(0) + +/* Page 0x14 - Audio Extra control and debug */ +#define REG_FIFO_LATENCY_VAL 0x1403 +#define REG_AUDIO_CLOCK 0x1411 +#define REG_TEST_NCTS_CTRL 0x1415 +#define REG_TEST_AUDIO_FREQ 0x1426 +#define REG_TEST_MODE 0x1437 + +/* Audio Clock Configuration */ +#define AUDIO_CLOCK_PLL_PD BIT(7) /* powerdown PLL */ +#define AUDIO_CLOCK_SEL_MASK 0x7f +#define AUDIO_CLOCK_SEL_16FS 0L /* 16*fs */ +#define AUDIO_CLOCK_SEL_32FS 1L /* 32*fs */ +#define AUDIO_CLOCK_SEL_64FS 2L /* 64*fs */ +#define AUDIO_CLOCK_SEL_128FS 3L /* 128*fs */ +#define AUDIO_CLOCK_SEL_256FS 4L /* 256*fs */ +#define AUDIO_CLOCK_SEL_512FS 5L /* 512*fs */ + +/* Page 0x20: EDID and Hotplug Detect */ +#define REG_EDID_IN_BYTE0 0x2000 /* EDID base */ +#define REG_EDID_IN_VERSION 0x2080 +#define REG_EDID_ENABLE 0x2081 +#define REG_HPD_POWER 0x2084 +#define REG_HPD_AUTO_CTRL 0x2085 +#define REG_HPD_DURATION 0x2086 +#define REG_RX_HPD_HEAC 0x2087 + +/* EDID_ENABLE */ +#define EDID_ENABLE_NACK_OFF BIT(7) +#define EDID_ENABLE_EDID_ONLY BIT(6) +#define EDID_ENABLE_B_EN BIT(1) +#define EDID_ENABLE_A_EN BIT(0) + +/* HPD Power */ +#define HPD_POWER_BP_MASK 0x0c +#define HPD_POWER_BP_SHIFT 2 +#define HPD_POWER_BP_LOW 0L +#define HPD_POWER_BP_HIGH 1L +#define HPD_POWER_EDID_ONLY BIT(1) + +/* HPD Auto control */ +#define HPD_AUTO_READ_EDID BIT(7) +#define HPD_AUTO_HPD_F3TECH BIT(5) +#define HPD_AUTO_HP_OTHER BIT(4) +#define HPD_AUTO_HPD_UNSEL BIT(3) +#define HPD_AUTO_HPD_ALL_CH BIT(2) +#define HPD_AUTO_HPD_PRV_CH BIT(1) +#define HPD_AUTO_HPD_NEW_CH BIT(0) + +/* Page 0x21 - EDID content */ +#define REG_EDID_IN_BYTE128 0x2100 /* CEA Extension block */ +#define REG_EDID_IN_SPA_SUB 0x2180 +#define REG_EDID_IN_SPA_AB_A 0x2181 +#define REG_EDID_IN_SPA_CD_A 0x2182 +#define REG_EDID_IN_CKSUM_A 0x2183 +#define REG_EDID_IN_SPA_AB_B 0x2184 +#define REG_EDID_IN_SPA_CD_B 0x2185 +#define REG_EDID_IN_CKSUM_B 0x2186 + +/* Page 0x30 - NV Configuration */ +#define REG_RT_AUTO_CTRL 0x3000 +#define REG_EQ_MAN_CTRL0 0x3001 +#define REG_EQ_MAN_CTRL1 0x3002 +#define REG_OUTPUT_CFG 0x3003 +#define REG_MUTE_CTRL 0x3004 +#define REG_SLAVE_ADDR 0x3005 +#define REG_CMTP_REG6 0x3006 +#define REG_CMTP_REG7 0x3007 +#define REG_CMTP_REG8 0x3008 +#define REG_CMTP_REG9 0x3009 +#define REG_CMTP_REGA 0x300A +#define REG_CMTP_REGB 0x300B +#define REG_CMTP_REGC 0x300C +#define REG_CMTP_REGD 0x300D +#define REG_CMTP_REGE 0x300E +#define REG_CMTP_REGF 0x300F +#define REG_CMTP_REG10 0x3010 +#define REG_CMTP_REG11 0x3011 + +/* Page 0x80 - CEC */ +#define REG_PWR_CONTROL 0x80F4 +#define REG_OSC_DIVIDER 0x80F5 +#define REG_EN_OSC_PERIOD_LSB 0x80F8 +#define REG_CONTROL 0x80FF + +/* global interrupt flags (INT_FLG_CRL_TOP) */ +#define INTERRUPT_AFE BIT(7) /* AFE module */ +#define INTERRUPT_HDCP BIT(6) /* HDCP module */ +#define INTERRUPT_AUDIO BIT(5) /* Audio module */ +#define INTERRUPT_INFO BIT(4) /* Infoframe module */ +#define INTERRUPT_MODE BIT(3) /* HDMI mode module */ +#define INTERRUPT_RATE BIT(2) /* rate module */ +#define INTERRUPT_DDC BIT(1) /* DDC module */ +#define INTERRUPT_SUS BIT(0) /* SUS module */ + +/* INT_FLG_CLR_HDCP bits */ +#define MASK_HDCP_MTP BIT(7) /* HDCP MTP busy */ +#define MASK_HDCP_DLMTP BIT(4) /* HDCP end download MTP to SRAM */ +#define MASK_HDCP_DLRAM BIT(3) /* HDCP end download keys from SRAM */ +#define MASK_HDCP_ENC BIT(2) /* HDCP ENC */ +#define MASK_STATE_C5 BIT(1) /* HDCP State C5 reached */ +#define MASK_AKSV BIT(0) /* AKSV received (start of auth) */ + +/* INT_FLG_CLR_RATE bits */ +#define MASK_RATE_B_DRIFT BIT(7) /* Rate measurement drifted */ +#define MASK_RATE_B_ST BIT(6) /* Rate measurement stability change */ +#define MASK_RATE_B_ACT BIT(5) /* Rate measurement activity change */ +#define MASK_RATE_B_PST BIT(4) /* Rate measreument presence change */ +#define MASK_RATE_A_DRIFT BIT(3) /* Rate measurement drifted */ +#define MASK_RATE_A_ST BIT(2) /* Rate measurement stability change */ +#define MASK_RATE_A_ACT BIT(1) /* Rate measurement presence change */ +#define MASK_RATE_A_PST BIT(0) /* Rate measreument presence change */ + +/* INT_FLG_CLR_SUS (Start Up Sequencer) bits */ +#define MASK_MPT BIT(7) /* Config MTP end of process */ +#define MASK_FMT BIT(5) /* Video format changed */ +#define MASK_RT_PULSE BIT(4) /* End of termination resistance pulse */ +#define MASK_SUS_END BIT(3) /* SUS last state reached */ +#define MASK_SUS_ACT BIT(2) /* Activity of selected input changed */ +#define MASK_SUS_CH BIT(1) /* Selected input changed */ +#define MASK_SUS_ST BIT(0) /* SUS state changed */ + +/* INT_FLG_CLR_DDC bits */ +#define MASK_EDID_MTP BIT(7) /* EDID MTP end of process */ +#define MASK_DDC_ERR BIT(6) /* master DDC error */ +#define MASK_DDC_CMD_DONE BIT(5) /* master DDC cmd send correct */ +#define MASK_READ_DONE BIT(4) /* End of down EDID read */ +#define MASK_RX_DDC_SW BIT(3) /* Output DDC switching finished */ +#define MASK_HDCP_DDC_SW BIT(2) /* HDCP DDC switching finished */ +#define MASK_HDP_PULSE_END BIT(1) /* End of Hot Plug Detect pulse */ +#define MASK_DET_5V BIT(0) /* Detection of +5V */ + +/* INT_FLG_CLR_MODE bits */ +#define MASK_HDMI_FLG BIT(7) /* HDMI mode/avmute/encrypt/FIFO fail */ +#define MASK_GAMUT BIT(6) /* Gamut packet */ +#define MASK_ISRC2 BIT(5) /* ISRC2 packet */ +#define MASK_ISRC1 BIT(4) /* ISRC1 packet */ +#define MASK_ACP BIT(3) /* Audio Content Protection packet */ +#define MASK_DC_NO_GCP BIT(2) /* GCP not received in 5 frames */ +#define MASK_DC_PHASE BIT(1) /* deepcolor pixel phase needs update */ +#define MASK_DC_MODE BIT(0) /* deepcolor color depth changed */ + +/* INT_FLG_CLR_INFO bits (Infoframe Change Status) */ +#define MASK_MPS_IF BIT(6) /* MPEG Source Product */ +#define MASK_AUD_IF BIT(5) /* Audio */ +#define MASK_SPD_IF BIT(4) /* Source Product Descriptor */ +#define MASK_AVI_IF BIT(3) /* Auxiliary Video IF */ +#define MASK_VS_IF_OTHER_BK2 BIT(2) /* Vendor Specific (bank2) */ +#define MASK_VS_IF_OTHER_BK1 BIT(1) /* Vendor Specific (bank1) */ +#define MASK_VS_IF_HDMI BIT(0) /* Vendor Specific (w/ HDMI LLC code) */ + +/* INT_FLG_CLR_AUDIO bits */ +#define MASK_AUDIO_FREQ_FLG BIT(5) /* Audio freq change */ +#define MASK_AUDIO_FLG BIT(4) /* DST, OBA, HBR, ASP change */ +#define MASK_MUTE_FLG BIT(3) /* Audio Mute */ +#define MASK_CH_STATE BIT(2) /* Channel status */ +#define MASK_UNMUTE_FIFO BIT(1) /* Audio Unmute */ +#define MASK_ERROR_FIFO_PT BIT(0) /* Audio FIFO pointer error */ + +/* INT_FLG_CLR_AFE bits */ +#define MASK_AFE_WDL_UNLOCKED BIT(7) /* Wordlocker was unlocked */ +#define MASK_AFE_GAIN_DONE BIT(6) /* Gain calibration done */ +#define MASK_AFE_OFFSET_DONE BIT(5) /* Offset calibration done */ +#define MASK_AFE_ACTIVITY_DET BIT(4) /* Activity detected on data */ +#define MASK_AFE_PLL_LOCK BIT(3) /* TMDS PLL is locked */ +#define MASK_AFE_TRMCAL_DONE BIT(2) /* Termination calibration done */ +#define MASK_AFE_ASU_STATE BIT(1) /* ASU state is reached */ +#define MASK_AFE_ASU_READY BIT(0) /* AFE calibration done: TMDS ready */ + +/* Audio Output */ +#define AUDCFG_CLK_INVERT BIT(7) /* invert A_CLK polarity */ +#define AUDCFG_TEST_TONE BIT(6) /* enable test tone generator */ +#define AUDCFG_BUS_SHIFT 5 +#define AUDCFG_BUS_I2S 0L +#define AUDCFG_BUS_SPDIF 1L +#define AUDCFG_I2SW_SHIFT 4 +#define AUDCFG_I2SW_16 0L +#define AUDCFG_I2SW_32 1L +#define AUDCFG_AUTO_MUTE_EN BIT(3) /* Enable Automatic audio mute */ +#define AUDCFG_HBR_SHIFT 2 +#define AUDCFG_HBR_STRAIGHT 0L /* straight via AP0 */ +#define AUDCFG_HBR_DEMUX 1L /* demuxed via AP0:AP3 */ +#define AUDCFG_TYPE_MASK 0x03 +#define AUDCFG_TYPE_SHIFT 0 +#define AUDCFG_TYPE_DST 3L /* Direct Stream Transfer (DST) */ +#define AUDCFG_TYPE_OBA 2L /* One Bit Audio (OBA) */ +#define AUDCFG_TYPE_HBR 1L /* High Bit Rate (HBR) */ +#define AUDCFG_TYPE_PCM 0L /* Audio samples */ + +/* Video Formatter */ +#define OF_VP_ENABLE BIT(7) /* VP[35:0]/HS/VS/DE/CLK */ +#define OF_BLK BIT(4) /* blanking codes */ +#define OF_TRC BIT(3) /* timing codes (SAV/EAV) */ +#define OF_FMT_MASK 0x3 +#define OF_FMT_444 0L /* RGB444/YUV444 */ +#define OF_FMT_422_SMPT 1L /* YUV422 semi-planar */ +#define OF_FMT_422_CCIR 2L /* YUV422 CCIR656 */ + +/* HS/HREF output control */ +#define HS_HREF_DELAY_MASK 0xf0 +#define HS_HREF_DELAY_SHIFT 4 /* Pixel delay (-8..+7) */ +#define HS_HREF_PXQ_SHIFT 3 /* Timing codes from HREF */ +#define HS_HREF_INV_SHIFT 2 /* polarity (1=invert) */ +#define HS_HREF_SEL_MASK 0x03 +#define HS_HREF_SEL_SHIFT 0 +#define HS_HREF_SEL_HS_VHREF 0L /* HS from VHREF */ +#define HS_HREF_SEL_HREF_VHREF 1L /* HREF from VHREF */ +#define HS_HREF_SEL_HREF_HDMI 2L /* HREF from HDMI */ +#define HS_HREF_SEL_NONE 3L /* not generated */ + +/* VS output control */ +#define VS_VREF_DELAY_MASK 0xf0 +#define VS_VREF_DELAY_SHIFT 4 /* Pixel delay (-8..+7) */ +#define VS_VREF_INV_SHIFT 2 /* polarity (1=invert) */ +#define VS_VREF_SEL_MASK 0x03 +#define VS_VREF_SEL_SHIFT 0 +#define VS_VREF_SEL_VS_VHREF 0L /* VS from VHREF */ +#define VS_VREF_SEL_VREF_VHREF 1L /* VREF from VHREF */ +#define VS_VREF_SEL_VREF_HDMI 2L /* VREF from HDMI */ +#define VS_VREF_SEL_NONE 3L /* not generated */ + +/* DE/FREF output control */ +#define DE_FREF_DELAY_MASK 0xf0 +#define DE_FREF_DELAY_SHIFT 4 /* Pixel delay (-8..+7) */ +#define DE_FREF_DE_PXQ_SHIFT 3 /* Timing codes from DE */ +#define DE_FREF_INV_SHIFT 2 /* polarity (1=invert) */ +#define DE_FREF_SEL_MASK 0x03 +#define DE_FREF_SEL_SHIFT 0 +#define DE_FREF_SEL_DE_VHREF 0L /* DE from VHREF (HREF and not(VREF) */ +#define DE_FREF_SEL_FREF_VHREF 1L /* FREF from VHREF */ +#define DE_FREF_SEL_FREF_HDMI 2L /* FREF from HDMI */ +#define DE_FREF_SEL_NONE 3L /* not generated */ + +/* HDMI_SOFT_RST bits */ +#define RESET_DC BIT(7) /* Reset deep color module */ +#define RESET_HDCP BIT(6) /* Reset HDCP module */ +#define RESET_KSV BIT(5) /* Reset KSV-FIFO */ +#define RESET_SCFG BIT(4) /* Reset HDCP and repeater function */ +#define RESET_HCFG BIT(3) /* Reset HDCP DDC part */ +#define RESET_PA BIT(2) /* Reset polarity adjust */ +#define RESET_EP BIT(1) /* Reset Error protection */ +#define RESET_TMDS BIT(0) /* Reset TMDS (calib, encoding, flow) */ + +/* HDMI_INFO_RST bits */ +#define NACK_HDCP BIT(7) /* No ACK on HDCP request */ +#define RESET_FIFO BIT(4) /* Reset Audio FIFO control */ +#define RESET_GAMUT BIT(3) /* Clear Gamut packet */ +#define RESET_AI BIT(2) /* Clear ACP and ISRC packets */ +#define RESET_IF BIT(1) /* Clear all Audio infoframe packets */ +#define RESET_AUDIO BIT(0) /* Reset Audio FIFO control */ + +/* HDCP_BCAPS bits */ +#define HDCP_HDMI BIT(7) /* HDCP suports HDMI (vs DVI only) */ +#define HDCP_REPEATER BIT(6) /* HDCP supports repeater function */ +#define HDCP_READY BIT(5) /* set by repeater function */ +#define HDCP_FAST BIT(4) /* Up to 400kHz */ +#define HDCP_11 BIT(1) /* HDCP 1.1 supported */ +#define HDCP_FAST_REAUTH BIT(0) /* fast reauthentication supported */ + +/* Audio output formatter */ +#define AUDIO_LAYOUT_SP_FLAG BIT(2) /* sp flag used by FIFO */ +#define AUDIO_LAYOUT_MANUAL BIT(1) /* manual layout (vs per pkt) */ +#define AUDIO_LAYOUT_LAYOUT1 BIT(0) /* Layout1: AP0-3 vs Layout0:AP0 */ + +/* masks for interrupt status registers */ +#define MASK_SUS_STATUS 0x1F +#define LAST_STATE_REACHED 0x1B +#define MASK_CLK_STABLE 0x04 +#define MASK_CLK_ACTIVE 0x02 +#define MASK_SUS_STATE 0x10 +#define MASK_SR_FIFO_FIFO_CTRL 0x30 +#define MASK_AUDIO_FLAG 0x10 + +/* Rate measurement */ +#define RATE_REFTIM_ENABLE 0x01 +#define CLK_MIN_RATE 0x0057e4 +#define CLK_MAX_RATE 0x0395f8 +#define WDL_CFG_VAL 0x82 +#define DC_FILTER_VAL 0x31 + +/* Infoframe */ +#define VS_HDMI_IF_UPDATE 0x0200 +#define VS_HDMI_IF 0x0201 +#define VS_BK1_IF_UPDATE 0x0220 +#define VS_BK1_IF 0x0221 +#define VS_BK2_IF_UPDATE 0x0240 +#define VS_BK2_IF 0x0241 +#define AVI_IF_UPDATE 0x0260 +#define AVI_IF 0x0261 +#define SPD_IF_UPDATE 0x0280 +#define SPD_IF 0x0281 +#define AUD_IF_UPDATE 0x02a0 +#define AUD_IF 0x02a1 +#define MPS_IF_UPDATE 0x02c0 +#define MPS_IF 0x02c1 + +/* Audio formats */ +static const char * const audtype_names[] = { + "PCM", /* PCM Samples */ + "HBR", /* High Bit Rate Audio */ + "OBA", /* One-Bit Audio */ + "DST" /* Direct Stream Transfer */ +}; + +/* Audio output port formats */ +enum audfmt_types { + AUDFMT_TYPE_DISABLED = 0, + AUDFMT_TYPE_I2S, + AUDFMT_TYPE_SPDIF, +}; +static const char * const audfmt_names[] = { + "Disabled", + "I2S", + "SPDIF", +}; + +/* Video input formats */ +static const char * const hdmi_colorspace_names[] = { + "RGB", "YUV422", "YUV444", "YUV420", "", "", "", "", +}; +static const char * const hdmi_colorimetry_names[] = { + "", "ITU601", "ITU709", "Extended", +}; +static const char * const v4l2_quantization_names[] = { + "Default", + "Rull Range (0-255)", + "Limited Range (16-235)", +}; + +/* Video output port formats */ +static const char * const vidfmt_names[] = { + "RGB444/YUV444", /* RGB/YUV444 16bit data bus, 8bpp */ + "YUV422 semi-planar", /* YUV422 16bit data base, 8bpp */ + "YUV422 CCIR656", /* BT656 (YUV 8bpp 2 clock per pixel) */ + "Invalid", +}; + +/* + * Colorspace conversion matrices + */ +struct color_matrix_coefs { + const char *name; + /* Input offsets */ + s16 offint1; + s16 offint2; + s16 offint3; + /* Coeficients */ + s16 p11coef; + s16 p12coef; + s16 p13coef; + s16 p21coef; + s16 p22coef; + s16 p23coef; + s16 p31coef; + s16 p32coef; + s16 p33coef; + /* Output offsets */ + s16 offout1; + s16 offout2; + s16 offout3; +}; + +enum { + ITU709_RGBFULL, + ITU601_RGBFULL, + RGBLIMITED_RGBFULL, + RGBLIMITED_ITU601, + RGBLIMITED_ITU709, + RGBFULL_ITU601, + RGBFULL_ITU709, +}; + +/* NB: 4096 is 1.0 using fixed point numbers */ +static const struct color_matrix_coefs conv_matrix[] = { + { + "YUV709 -> RGB full", + -256, -2048, -2048, + 4769, -2183, -873, + 4769, 7343, 0, + 4769, 0, 8652, + 0, 0, 0, + }, + { + "YUV601 -> RGB full", + -256, -2048, -2048, + 4769, -3330, -1602, + 4769, 6538, 0, + 4769, 0, 8264, + 256, 256, 256, + }, + { + "RGB limited -> RGB full", + -256, -256, -256, + 0, 4769, 0, + 0, 0, 4769, + 4769, 0, 0, + 0, 0, 0, + }, + { + "RGB limited -> ITU601", + -256, -256, -256, + 2404, 1225, 467, + -1754, 2095, -341, + -1388, -707, 2095, + 256, 2048, 2048, + }, + { + "RGB limited -> ITU709", + -256, -256, -256, + 2918, 867, 295, + -1894, 2087, -190, + -1607, -477, 2087, + 256, 2048, 2048, + }, + { + "RGB full -> ITU601", + 0, 0, 0, + 2065, 1052, 401, + -1506, 1799, -293, + -1192, -607, 1799, + 256, 2048, 2048, + }, + { + "RGB full -> ITU709", + 0, 0, 0, + 2506, 745, 253, + -1627, 1792, -163, + -1380, -410, 1792, + 256, 2048, 2048, + }, +}; + +static const struct v4l2_dv_timings_cap tda1997x_dv_timings_cap = { + .type = V4L2_DV_BT_656_1120, + /* keep this initialization for compatibility with GCC < 4.4.6 */ + .reserved = { 0 }, + + V4L2_INIT_BT_TIMINGS( + 640, 1920, /* min/max width */ + 480, 1080, /* min/max height */ + 13000000, 165000000, /* min/max pixelclock */ + /* standards */ + V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT | + V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT, + /* capabilities */ + V4L2_DV_BT_CAP_INTERLACED | V4L2_DV_BT_CAP_PROGRESSIVE | + V4L2_DV_BT_CAP_REDUCED_BLANKING | + V4L2_DV_BT_CAP_CUSTOM + ) +}; + +/* + * Video Input formats + */ +static const struct v4l2_dv_timings tda1997x_hdmi_modes[] = { + V4L2_DV_BT_DMT_640X350P85, + V4L2_DV_BT_DMT_640X400P85, + V4L2_DV_BT_DMT_640X480P60, + V4L2_DV_BT_DMT_640X480P72, + V4L2_DV_BT_DMT_640X480P75, + V4L2_DV_BT_DMT_720X400P85, + V4L2_DV_BT_CEA_720X480I59_94, + V4L2_DV_BT_CEA_720X480P59_94, + V4L2_DV_BT_CEA_720X576I50, + V4L2_DV_BT_CEA_720X576P50, + V4L2_DV_BT_DMT_800X600P60, + V4L2_DV_BT_DMT_800X600P72, + V4L2_DV_BT_DMT_800X600P75, + V4L2_DV_BT_DMT_800X600P85, + V4L2_DV_BT_DMT_1024X768P60, + V4L2_DV_BT_DMT_1024X768P70, + V4L2_DV_BT_DMT_1024X768P75, + V4L2_DV_BT_DMT_1024X768P85, + V4L2_DV_BT_CEA_1280X720P24, + V4L2_DV_BT_CEA_1280X720P25, + V4L2_DV_BT_CEA_1280X720P30, + V4L2_DV_BT_CEA_1280X720P50, + V4L2_DV_BT_CEA_1280X720P60, + V4L2_DV_BT_DMT_1280X768P60_RB, + V4L2_DV_BT_DMT_1280X768P75, + V4L2_DV_BT_DMT_1280X768P85, + V4L2_DV_BT_DMT_1280X960P60, + V4L2_DV_BT_DMT_1280X1024P60, + V4L2_DV_BT_DMT_1280X1024P85, + V4L2_DV_BT_DMT_1280X1024P75, + V4L2_DV_BT_DMT_1360X768P60, + V4L2_DV_BT_DMT_1440X900P60, + V4L2_DV_BT_DMT_1400X1050P60_RB, + V4L2_DV_BT_DMT_1400X1050P60, + V4L2_DV_BT_DMT_1600X1200P60, + V4L2_DV_BT_DMT_1680X1050P60_RB, + V4L2_DV_BT_CEA_1920X1080P24, + V4L2_DV_BT_CEA_1920X1080P25, + V4L2_DV_BT_CEA_1920X1080P30, + V4L2_DV_BT_CEA_1920X1080I50, + V4L2_DV_BT_CEA_1920X1080P50, + V4L2_DV_BT_CEA_1920X1080I60, + V4L2_DV_BT_CEA_1920X1080P60, + V4L2_DV_BT_DMT_1920X1200P60_RB, +}; + +/* regulator supplies */ +static const char * const tda1997x_supply_name[] = { + "DOVDD", /* Digital I/O supply */ + "DVDD", /* Digital Core supply */ + "AVDD", /* Analog supply */ +}; + +#define TDA1997X_NUM_SUPPLIES ARRAY_SIZE(tda1997x_supply_name) + +enum tda1997x_type { + TDA19971, + TDA19973, +}; + +enum tda1997x_hdmi_pads { + TDA1997X_PAD_SOURCE, + TDA1997X_NUM_PADS, +}; + +struct tda1997x_chip_info { + enum tda1997x_type type; + const char *name; +}; + +struct tda1997x_state { + const struct tda1997x_chip_info *info; + struct tda1997x_platform_data pdata; + struct i2c_client *client; + struct i2c_client *client_cec; + struct v4l2_subdev sd; + struct regulator_bulk_data supplies[TDA1997X_NUM_SUPPLIES]; + struct media_pad pads[TDA1997X_NUM_PADS]; + struct mutex lock; + struct mutex page_lock; + char page; + + /* detected info from chip */ + int chip_revision; + char port_30bit; + char output_2p5; + char tmdsb_clk; + char tmdsb_soc; + + /* status info */ + char hdmi_status; + char mptrw_in_progress; + char state_c5_reached; + char activity_status; + char input_detect[2]; + + /* video */ + struct hdmi_avi_infoframe avi_infoframe; + struct v4l2_hdmi_colorimetry colorimetry; + u32 rgb_quantization_range; + struct v4l2_dv_timings timings; + const struct v4l2_dv_timings *detected_timings; + int fps; + const struct color_matrix_coefs *conv; + u32 mbus_codes[5]; /* available modes */ + u32 mbus_code; /* current mode */ + u8 vid_fmt; + + /* controls */ + struct v4l2_ctrl_handler hdl; + struct v4l2_ctrl *detect_tx_5v_ctrl; + struct v4l2_ctrl *rgb_quantization_range_ctrl; + + /* audio */ + u8 audio_ch_alloc; + int audio_samplerate; + int audio_channels; + int audio_samplesize; + int audio_type; + struct mutex audio_lock; + struct snd_pcm_substream *audio_stream; + + /* EDID */ + struct { + u8 edid[256]; + u32 present; + unsigned int blocks; + } edid; + struct delayed_work delayed_work_enable_hpd; +}; + +static const struct v4l2_event tda1997x_ev_fmt = { + .type = V4L2_EVENT_SOURCE_CHANGE, + .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION, +}; + +static const struct tda1997x_chip_info tda1997x_chip_info[] = { + [TDA19971] = { + .type = TDA19971, + .name = "tda19971", + }, + [TDA19973] = { + .type = TDA19973, + .name = "tda19973", + }, +}; + +static inline struct tda1997x_state *to_state(struct v4l2_subdev *sd) +{ + return container_of(sd, struct tda1997x_state, sd); +} + +static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) +{ + return &container_of(ctrl->handler, struct tda1997x_state, hdl)->sd; +} + +static int tda1997x_cec_read(struct v4l2_subdev *sd, u8 reg) +{ + struct tda1997x_state *state = to_state(sd); + int val; + + val = i2c_smbus_read_byte_data(state->client_cec, reg); + if (val < 0) { + v4l_err(state->client, "read reg error: reg=%2x\n", reg); + val = -1; + } + + return val; +} + +static int tda1997x_cec_write(struct v4l2_subdev *sd, u8 reg, u8 val) +{ + struct tda1997x_state *state = to_state(sd); + int ret = 0; + + ret = i2c_smbus_write_byte_data(state->client_cec, reg, val); + if (ret < 0) { + v4l_err(state->client, "write reg error:reg=%2x,val=%2x\n", + reg, val); + ret = -1; + } + + return ret; +} + +/* ----------------------------------------------------------------------------- + * I2C transfer + */ + +static int tda1997x_setpage(struct v4l2_subdev *sd, u8 page) +{ + struct tda1997x_state *state = to_state(sd); + int ret; + + if (state->page != page) { + ret = i2c_smbus_write_byte_data(state->client, + REG_CURPAGE_00H, page); + if (ret < 0) { + v4l_err(state->client, + "write reg error:reg=%2x,val=%2x\n", + REG_CURPAGE_00H, page); + return ret; + } + state->page = page; + } + return 0; +} + +static inline int io_read(struct v4l2_subdev *sd, u16 reg) +{ + struct tda1997x_state *state = to_state(sd); + int val; + + mutex_lock(&state->page_lock); + if (tda1997x_setpage(sd, reg >> 8)) { + val = -1; + goto out; + } + + val = i2c_smbus_read_byte_data(state->client, reg&0xff); + if (val < 0) { + v4l_err(state->client, "read reg error: reg=%2x\n", reg & 0xff); + val = -1; + goto out; + } + +out: + mutex_unlock(&state->page_lock); + return val; +} + +static inline long io_read16(struct v4l2_subdev *sd, u16 reg) +{ + u8 val; + long lval = 0; + + val = io_read(sd, reg); + if (val < 0) + return val; + lval |= (val << 8); + val = io_read(sd, reg + 1); + if (val < 0) + return val; + lval |= val; + + return lval; +} + +static inline long io_read24(struct v4l2_subdev *sd, u16 reg) +{ + u8 val; + long lval = 0; + + val = io_read(sd, reg); + if (val < 0) + return val; + lval |= (val << 16); + val = io_read(sd, reg + 1); + if (val < 0) + return val; + lval |= (val << 8); + val = io_read(sd, reg + 2); + if (val < 0) + return val; + lval |= val; + + return lval; +} + +static unsigned int io_readn(struct v4l2_subdev *sd, u16 reg, u8 len, u8 *data) +{ + int i; + int sz = 0; + u8 val; + + for (i = 0; i < len; i++) { + val = io_read(sd, reg + i); + if (val < 0) + break; + data[i] = val; + sz++; + } + + return sz; +} + +static int io_write(struct v4l2_subdev *sd, u16 reg, u8 val) +{ + struct tda1997x_state *state = to_state(sd); + s32 ret = 0; + + mutex_lock(&state->page_lock); + if (tda1997x_setpage(sd, reg >> 8)) { + ret = -1; + goto out; + } + + ret = i2c_smbus_write_byte_data(state->client, reg & 0xff, val); + if (ret < 0) { + v4l_err(state->client, "write reg error:reg=%2x,val=%2x\n", + reg&0xff, val); + ret = -1; + goto out; + } + +out: + mutex_unlock(&state->page_lock); + return ret; +} + +static int io_write16(struct v4l2_subdev *sd, u16 reg, u16 val) +{ + int ret; + + ret = io_write(sd, reg, (val >> 8) & 0xff); + if (ret < 0) + return ret; + ret = io_write(sd, reg + 1, val & 0xff); + if (ret < 0) + return ret; + return 0; +} + +static int io_write24(struct v4l2_subdev *sd, u16 reg, u32 val) +{ + int ret; + + ret = io_write(sd, reg, (val >> 16) & 0xff); + if (ret < 0) + return ret; + ret = io_write(sd, reg + 1, (val >> 8) & 0xff); + if (ret < 0) + return ret; + ret = io_write(sd, reg + 2, val & 0xff); + if (ret < 0) + return ret; + return 0; +} + +/* ----------------------------------------------------------------------------- + * Hotplug + */ + +enum hpd_mode { + HPD_LOW_BP, /* HPD low and pulse of at least 100ms */ + HPD_LOW_OTHER, /* HPD low and pulse of at least 100ms */ + HPD_HIGH_BP, /* HIGH */ + HPD_HIGH_OTHER, + HPD_PULSE, /* HPD low pulse */ +}; + +/* manual HPD (Hot Plug Detect) control */ +static int tda1997x_manual_hpd(struct v4l2_subdev *sd, enum hpd_mode mode) +{ + u8 hpd_auto, hpd_pwr, hpd_man; + + hpd_auto = io_read(sd, REG_HPD_AUTO_CTRL); + hpd_pwr = io_read(sd, REG_HPD_POWER); + hpd_man = io_read(sd, REG_HPD_MAN_CTRL); + + /* mask out unused bits */ + hpd_man &= (HPD_MAN_CTRL_HPD_PULSE | + HPD_MAN_CTRL_5VEN | + HPD_MAN_CTRL_HPD_B | + HPD_MAN_CTRL_HPD_A); + + switch (mode) { + /* HPD low and pulse of at least 100ms */ + case HPD_LOW_BP: + /* hpd_bp=0 */ + hpd_pwr &= ~HPD_POWER_BP_MASK; + /* disable HPD_A and HPD_B */ + hpd_man &= ~(HPD_MAN_CTRL_HPD_A | HPD_MAN_CTRL_HPD_B); + io_write(sd, REG_HPD_POWER, hpd_pwr); + io_write(sd, REG_HPD_MAN_CTRL, hpd_man); + break; + /* HPD high */ + case HPD_HIGH_BP: + /* hpd_bp=1 */ + hpd_pwr &= ~HPD_POWER_BP_MASK; + hpd_pwr |= 1 << HPD_POWER_BP_SHIFT; + io_write(sd, REG_HPD_POWER, hpd_pwr); + break; + /* HPD low and pulse of at least 100ms */ + case HPD_LOW_OTHER: + /* disable HPD_A and HPD_B */ + hpd_man &= ~(HPD_MAN_CTRL_HPD_A | HPD_MAN_CTRL_HPD_B); + /* hp_other=0 */ + hpd_auto &= ~HPD_AUTO_HP_OTHER; + io_write(sd, REG_HPD_AUTO_CTRL, hpd_auto); + io_write(sd, REG_HPD_MAN_CTRL, hpd_man); + break; + /* HPD high */ + case HPD_HIGH_OTHER: + hpd_auto |= HPD_AUTO_HP_OTHER; + io_write(sd, REG_HPD_AUTO_CTRL, hpd_auto); + break; + /* HPD low pulse */ + case HPD_PULSE: + /* disable HPD_A and HPD_B */ + hpd_man &= ~(HPD_MAN_CTRL_HPD_A | HPD_MAN_CTRL_HPD_B); + io_write(sd, REG_HPD_MAN_CTRL, hpd_man); + break; + } + + return 0; +} + +static void tda1997x_delayed_work_enable_hpd(struct work_struct *work) +{ + struct delayed_work *dwork = to_delayed_work(work); + struct tda1997x_state *state = container_of(dwork, + struct tda1997x_state, + delayed_work_enable_hpd); + struct v4l2_subdev *sd = &state->sd; + + v4l2_dbg(2, debug, sd, "%s:\n", __func__); + + /* Set HPD high */ + tda1997x_manual_hpd(sd, HPD_HIGH_OTHER); + tda1997x_manual_hpd(sd, HPD_HIGH_BP); + + state->edid.present = 1; +} + +static void tda1997x_disable_edid(struct v4l2_subdev *sd) +{ + struct tda1997x_state *state = to_state(sd); + + v4l2_dbg(1, debug, sd, "%s\n", __func__); + cancel_delayed_work_sync(&state->delayed_work_enable_hpd); + + /* Set HPD low */ + tda1997x_manual_hpd(sd, HPD_LOW_BP); +} + +static void tda1997x_enable_edid(struct v4l2_subdev *sd) +{ + struct tda1997x_state *state = to_state(sd); + + v4l2_dbg(1, debug, sd, "%s\n", __func__); + + /* Enable hotplug after 100ms */ + schedule_delayed_work(&state->delayed_work_enable_hpd, HZ / 10); +} + +/* ----------------------------------------------------------------------------- + * Signal Control + */ + +/* + * configure vid_fmt based on mbus_code + */ +static int +tda1997x_setup_format(struct tda1997x_state *state, u32 code) +{ + v4l_dbg(1, debug, state->client, "%s code=0x%x\n", __func__, code); + switch (code) { + case MEDIA_BUS_FMT_RGB121212_1X36: + case MEDIA_BUS_FMT_RGB888_1X24: + case MEDIA_BUS_FMT_YUV12_1X36: + case MEDIA_BUS_FMT_YUV8_1X24: + state->vid_fmt = OF_FMT_444; + break; + case MEDIA_BUS_FMT_UYVY12_1X24: + case MEDIA_BUS_FMT_UYVY10_1X20: + case MEDIA_BUS_FMT_UYVY8_1X16: + state->vid_fmt = OF_FMT_422_SMPT; + break; + case MEDIA_BUS_FMT_UYVY12_2X12: + case MEDIA_BUS_FMT_UYVY10_2X10: + case MEDIA_BUS_FMT_UYVY8_2X8: + state->vid_fmt = OF_FMT_422_CCIR; + break; + default: + v4l_err(state->client, "incompatible format (0x%x)\n", code); + return -EINVAL; + } + v4l_dbg(1, debug, state->client, "%s code=0x%x fmt=%s\n", __func__, + code, vidfmt_names[state->vid_fmt]); + state->mbus_code = code; + + return 0; +} + +/* + * The color conversion matrix will convert between the colorimetry of the + * HDMI input to the desired output format RGB|YUV. RGB output is to be + * full-range and YUV is to be limited range. + * + * RGB full-range uses values from 0 to 255 which is recommended on a monitor + * and RGB Limited uses values from 16 to 236 (16=black, 235=white) which is + * typically recommended on a TV. + */ +static int +tda1997x_configure_csc(struct v4l2_subdev *sd) +{ + struct tda1997x_state *state = to_state(sd); + struct hdmi_avi_infoframe *avi = &state->avi_infoframe; + struct v4l2_hdmi_colorimetry *c = &state->colorimetry; + /* Blanking code values depend on output colorspace (RGB or YUV) */ + struct blanking_codes { + s16 code_gy; + s16 code_bu; + s16 code_rv; + }; + static const struct blanking_codes rgb_blanking = { 64, 64, 64 }; + static const struct blanking_codes yuv_blanking = { 64, 512, 512 }; + const struct blanking_codes *blanking_codes = NULL; + u8 reg; + + v4l_dbg(1, debug, state->client, "input:%s quant:%s output:%s\n", + hdmi_colorspace_names[avi->colorspace], + v4l2_quantization_names[c->quantization], + vidfmt_names[state->vid_fmt]); + state->conv = NULL; + switch (state->vid_fmt) { + /* RGB output */ + case OF_FMT_444: + blanking_codes = &rgb_blanking; + if (c->colorspace == V4L2_COLORSPACE_SRGB) { + if (c->quantization == V4L2_QUANTIZATION_LIM_RANGE) + state->conv = &conv_matrix[RGBLIMITED_RGBFULL]; + } else { + if (c->colorspace == V4L2_COLORSPACE_REC709) + state->conv = &conv_matrix[ITU709_RGBFULL]; + else if (c->colorspace == V4L2_COLORSPACE_SMPTE170M) + state->conv = &conv_matrix[ITU601_RGBFULL]; + } + break; + + /* YUV output */ + case OF_FMT_422_SMPT: /* semi-planar */ + case OF_FMT_422_CCIR: /* CCIR656 */ + blanking_codes = &yuv_blanking; + if ((c->colorspace == V4L2_COLORSPACE_SRGB) && + (c->quantization == V4L2_QUANTIZATION_FULL_RANGE)) { + if (state->timings.bt.height <= 576) + state->conv = &conv_matrix[RGBFULL_ITU601]; + else + state->conv = &conv_matrix[RGBFULL_ITU709]; + } else if ((c->colorspace == V4L2_COLORSPACE_SRGB) && + (c->quantization == V4L2_QUANTIZATION_LIM_RANGE)) { + if (state->timings.bt.height <= 576) + state->conv = &conv_matrix[RGBLIMITED_ITU601]; + else + state->conv = &conv_matrix[RGBLIMITED_ITU709]; + } + break; + } + + if (state->conv) { + v4l_dbg(1, debug, state->client, "%s\n", + state->conv->name); + /* enable matrix conversion */ + reg = io_read(sd, REG_VDP_CTRL); + reg &= ~VDP_CTRL_MATRIX_BP; + io_write(sd, REG_VDP_CTRL, reg); + /* offset inputs */ + io_write16(sd, REG_VDP_MATRIX + 0, state->conv->offint1); + io_write16(sd, REG_VDP_MATRIX + 2, state->conv->offint2); + io_write16(sd, REG_VDP_MATRIX + 4, state->conv->offint3); + /* coefficients */ + io_write16(sd, REG_VDP_MATRIX + 6, state->conv->p11coef); + io_write16(sd, REG_VDP_MATRIX + 8, state->conv->p12coef); + io_write16(sd, REG_VDP_MATRIX + 10, state->conv->p13coef); + io_write16(sd, REG_VDP_MATRIX + 12, state->conv->p21coef); + io_write16(sd, REG_VDP_MATRIX + 14, state->conv->p22coef); + io_write16(sd, REG_VDP_MATRIX + 16, state->conv->p23coef); + io_write16(sd, REG_VDP_MATRIX + 18, state->conv->p31coef); + io_write16(sd, REG_VDP_MATRIX + 20, state->conv->p32coef); + io_write16(sd, REG_VDP_MATRIX + 22, state->conv->p33coef); + /* offset outputs */ + io_write16(sd, REG_VDP_MATRIX + 24, state->conv->offout1); + io_write16(sd, REG_VDP_MATRIX + 26, state->conv->offout2); + io_write16(sd, REG_VDP_MATRIX + 28, state->conv->offout3); + } else { + /* disable matrix conversion */ + reg = io_read(sd, REG_VDP_CTRL); + reg |= VDP_CTRL_MATRIX_BP; + io_write(sd, REG_VDP_CTRL, reg); + } + + /* SetBlankingCodes */ + if (blanking_codes) { + io_write16(sd, REG_BLK_GY, blanking_codes->code_gy); + io_write16(sd, REG_BLK_BU, blanking_codes->code_bu); + io_write16(sd, REG_BLK_RV, blanking_codes->code_rv); + } + + return 0; +} + +/* Configure frame detection window and VHREF timing generator */ +static int +tda1997x_configure_vhref(struct v4l2_subdev *sd) +{ + struct tda1997x_state *state = to_state(sd); + const struct v4l2_bt_timings *bt; + int width, lines; + u16 href_start, href_end; + u16 vref_f1_start, vref_f2_start; + u8 vref_f1_width, vref_f2_width; + u8 field_polarity; + u16 fieldref_f1_start, fieldref_f2_start; + u8 reg; + + if (!state->detected_timings) + return -EINVAL; + bt = &state->detected_timings->bt; + href_start = bt->hbackporch + bt->hsync + 1; + href_end = href_start + bt->width; + vref_f1_start = bt->height + bt->vbackporch + bt->vsync + + bt->il_vbackporch + bt->il_vsync + + bt->il_vfrontporch; + vref_f1_width = bt->vbackporch + bt->vsync + bt->vfrontporch; + vref_f2_start = 0; + vref_f2_width = 0; + fieldref_f1_start = 0; + fieldref_f2_start = 0; + if (bt->interlaced) { + vref_f2_start = (bt->height / 2) + + (bt->il_vbackporch + bt->il_vsync - 1); + vref_f2_width = bt->il_vbackporch + bt->il_vsync + + bt->il_vfrontporch; + fieldref_f2_start = vref_f2_start + bt->il_vfrontporch + + fieldref_f1_start; + } + field_polarity = 0; + + width = V4L2_DV_BT_FRAME_WIDTH(bt); + lines = V4L2_DV_BT_FRAME_HEIGHT(bt); + + /* + * Configure Frame Detection Window: + * horiz area where the VHREF module consider a VSYNC a new frame + */ + io_write16(sd, REG_FDW_S, 0x2ef); /* start position */ + io_write16(sd, REG_FDW_E, 0x141); /* end position */ + + /* Set Pixel And Line Counters */ + if (state->chip_revision == 0) + io_write16(sd, REG_PXCNT_PR, 4); + else + io_write16(sd, REG_PXCNT_PR, 1); + io_write16(sd, REG_PXCNT_NPIX, width & MASK_VHREF); + io_write16(sd, REG_LCNT_PR, 1); + io_write16(sd, REG_LCNT_NLIN, lines & MASK_VHREF); + + /* + * Configure the VHRef timing generator responsible for rebuilding all + * horiz and vert synch and ref signals from its input allowing auto + * detection algorithms and forcing predefined modes (480i & 576i) + */ + reg = VHREF_STD_DET_OFF << VHREF_STD_DET_SHIFT; + io_write(sd, REG_VHREF_CTRL, reg); + + /* + * Configure the VHRef timing values. In case the VHREF generator has + * been configured in manual mode, this will allow to manually set all + * horiz and vert ref values (non-active pixel areas) of the generator + * and allows setting the frame reference params. + */ + /* horizontal reference start/end */ + io_write16(sd, REG_HREF_S, href_start & MASK_VHREF); + io_write16(sd, REG_HREF_E, href_end & MASK_VHREF); + /* vertical reference f1 start/end */ + io_write16(sd, REG_VREF_F1_S, vref_f1_start & MASK_VHREF); + io_write(sd, REG_VREF_F1_WIDTH, vref_f1_width); + /* vertical reference f2 start/end */ + io_write16(sd, REG_VREF_F2_S, vref_f2_start & MASK_VHREF); + io_write(sd, REG_VREF_F2_WIDTH, vref_f2_width); + + /* F1/F2 FREF, field polarity */ + reg = fieldref_f1_start & MASK_VHREF; + reg |= field_polarity << 8; + io_write16(sd, REG_FREF_F1_S, reg); + reg = fieldref_f2_start & MASK_VHREF; + io_write16(sd, REG_FREF_F2_S, reg); + + return 0; +} + +/* Configure Video Output port signals */ +static int +tda1997x_configure_vidout(struct tda1997x_state *state) +{ + struct v4l2_subdev *sd = &state->sd; + struct tda1997x_platform_data *pdata = &state->pdata; + u8 prefilter; + u8 reg; + + /* Configure pixel clock generator: delay, polarity, rate */ + reg = (state->vid_fmt == OF_FMT_422_CCIR) ? + PCLK_SEL_X2 : PCLK_SEL_X1; + reg |= pdata->vidout_delay_pclk << PCLK_DELAY_SHIFT; + reg |= pdata->vidout_inv_pclk << PCLK_INV_SHIFT; + io_write(sd, REG_PCLK, reg); + + /* Configure pre-filter */ + prefilter = 0; /* filters off */ + /* YUV422 mode requires conversion */ + if ((state->vid_fmt == OF_FMT_422_SMPT) + || (state->vid_fmt == OF_FMT_422_CCIR)) { + /* 2/7taps for Rv and Bu */ + prefilter = FILTERS_CTRL_2_7TAP << FILTERS_CTRL_BU_SHIFT | + FILTERS_CTRL_2_7TAP << FILTERS_CTRL_RV_SHIFT; + } + io_write(sd, REG_FILTERS_CTRL, prefilter); + + /* Configure video port */ + reg = state->vid_fmt & OF_FMT_MASK; + if (state->vid_fmt == OF_FMT_422_CCIR) + reg |= (OF_BLK | OF_TRC); + reg |= OF_VP_ENABLE; + io_write(sd, REG_OF, reg); + + /* Configure formatter and conversions */ + reg = io_read(sd, REG_VDP_CTRL); + /* pre-filter is needed unless (REG_FILTERS_CTRL == 0) */ + if (!prefilter) + reg |= VDP_CTRL_PREFILTER_BP; + else + reg &= ~VDP_CTRL_PREFILTER_BP; + /* formatter is needed for YUV422 and for trc/blc codes */ + if (state->vid_fmt == OF_FMT_444) + reg |= VDP_CTRL_FORMATTER_BP; + /* formatter and compdel needed for timing/blanking codes */ + else + reg &= ~(VDP_CTRL_FORMATTER_BP | VDP_CTRL_COMPDEL_BP); + /* activate compdel for small sync delays */ + if ((pdata->vidout_delay_vs < 4) || (pdata->vidout_delay_hs < 4)) + reg &= ~VDP_CTRL_COMPDEL_BP; + io_write(sd, REG_VDP_CTRL, reg); + + /* Configure DE output signal: delay, polarity, and source */ + reg = pdata->vidout_delay_de << DE_FREF_DELAY_SHIFT | + pdata->vidout_inv_de << DE_FREF_INV_SHIFT | + pdata->vidout_sel_de << DE_FREF_SEL_SHIFT; + io_write(sd, REG_DE_FREF, reg); + + /* Configure HS/HREF output signal: delay, polarity, and source */ + if (state->vid_fmt != OF_FMT_422_CCIR) { + reg = pdata->vidout_delay_hs << HS_HREF_DELAY_SHIFT | + pdata->vidout_inv_hs << HS_HREF_INV_SHIFT | + pdata->vidout_sel_hs << HS_HREF_SEL_SHIFT; + } else + reg = HS_HREF_SEL_NONE << HS_HREF_SEL_SHIFT; + io_write(sd, REG_HS_HREF, reg); + + /* Configure VS/VREF output signal: delay, polarity, and source */ + if (state->vid_fmt != OF_FMT_422_CCIR) { + reg = pdata->vidout_delay_vs << VS_VREF_DELAY_SHIFT | + pdata->vidout_inv_vs << VS_VREF_INV_SHIFT | + pdata->vidout_sel_vs << VS_VREF_SEL_SHIFT; + } else + reg = VS_VREF_SEL_NONE << VS_VREF_SEL_SHIFT; + io_write(sd, REG_VS_VREF, reg); + + return 0; +} + +/* Configure Audio output port signals */ +static int +tda1997x_configure_audout(struct v4l2_subdev *sd, u8 channel_assignment) +{ + struct tda1997x_state *state = to_state(sd); + struct tda1997x_platform_data *pdata = &state->pdata; + bool sp_used_by_fifo = 1; + u8 reg; + + if (!pdata->audout_format) + return 0; + + /* channel assignment (CEA-861-D Table 20) */ + io_write(sd, REG_AUDIO_PATH, channel_assignment); + + /* Audio output configuration */ + reg = 0; + switch (pdata->audout_format) { + case AUDFMT_TYPE_I2S: + reg |= AUDCFG_BUS_I2S << AUDCFG_BUS_SHIFT; + break; + case AUDFMT_TYPE_SPDIF: + reg |= AUDCFG_BUS_SPDIF << AUDCFG_BUS_SHIFT; + break; + } + switch (state->audio_type) { + case AUDCFG_TYPE_PCM: + reg |= AUDCFG_TYPE_PCM << AUDCFG_TYPE_SHIFT; + break; + case AUDCFG_TYPE_OBA: + reg |= AUDCFG_TYPE_OBA << AUDCFG_TYPE_SHIFT; + break; + case AUDCFG_TYPE_DST: + reg |= AUDCFG_TYPE_DST << AUDCFG_TYPE_SHIFT; + sp_used_by_fifo = 0; + break; + case AUDCFG_TYPE_HBR: + reg |= AUDCFG_TYPE_HBR << AUDCFG_TYPE_SHIFT; + if (pdata->audout_layout == 1) { + /* demuxed via AP0:AP3 */ + reg |= AUDCFG_HBR_DEMUX << AUDCFG_HBR_SHIFT; + if (pdata->audout_format == AUDFMT_TYPE_SPDIF) + sp_used_by_fifo = 0; + } else { + /* straight via AP0 */ + reg |= AUDCFG_HBR_STRAIGHT << AUDCFG_HBR_SHIFT; + } + break; + } + if (pdata->audout_width == 32) + reg |= AUDCFG_I2SW_32 << AUDCFG_I2SW_SHIFT; + else + reg |= AUDCFG_I2SW_16 << AUDCFG_I2SW_SHIFT; + + /* automatic hardware mute */ + if (pdata->audio_auto_mute) + reg |= AUDCFG_AUTO_MUTE_EN; + /* clock polarity */ + if (pdata->audout_invert_clk) + reg |= AUDCFG_CLK_INVERT; + io_write(sd, REG_AUDCFG, reg); + + /* audio layout */ + reg = (pdata->audout_layout) ? AUDIO_LAYOUT_LAYOUT1 : 0; + if (!pdata->audout_layoutauto) + reg |= AUDIO_LAYOUT_MANUAL; + if (sp_used_by_fifo) + reg |= AUDIO_LAYOUT_SP_FLAG; + io_write(sd, REG_AUDIO_LAYOUT, reg); + + /* FIFO Latency value */ + io_write(sd, REG_FIFO_LATENCY_VAL, 0x80); + + /* Audio output port config */ + if (sp_used_by_fifo) { + reg = AUDIO_OUT_ENABLE_AP0; + if (channel_assignment >= 0x01) + reg |= AUDIO_OUT_ENABLE_AP1; + if (channel_assignment >= 0x04) + reg |= AUDIO_OUT_ENABLE_AP2; + if (channel_assignment >= 0x0c) + reg |= AUDIO_OUT_ENABLE_AP3; + /* specific cases where AP1 is not used */ + if ((channel_assignment == 0x04) + || (channel_assignment == 0x08) + || (channel_assignment == 0x0c) + || (channel_assignment == 0x10) + || (channel_assignment == 0x14) + || (channel_assignment == 0x18) + || (channel_assignment == 0x1c)) + reg &= ~AUDIO_OUT_ENABLE_AP1; + /* specific cases where AP2 is not used */ + if ((channel_assignment >= 0x14) + && (channel_assignment <= 0x17)) + reg &= ~AUDIO_OUT_ENABLE_AP2; + } else { + reg = AUDIO_OUT_ENABLE_AP3 | + AUDIO_OUT_ENABLE_AP2 | + AUDIO_OUT_ENABLE_AP1 | + AUDIO_OUT_ENABLE_AP0; + } + if (pdata->audout_format == AUDFMT_TYPE_I2S) + reg |= (AUDIO_OUT_ENABLE_ACLK | AUDIO_OUT_ENABLE_WS); + io_write(sd, REG_AUDIO_OUT_ENABLE, reg); + + /* reset test mode to normal audio freq auto selection */ + io_write(sd, REG_TEST_MODE, 0x00); + + return 0; +} + +/* Soft Reset of specific hdmi info */ +static int +tda1997x_hdmi_info_reset(struct v4l2_subdev *sd, u8 info_rst, bool reset_sus) +{ + u8 reg; + + /* reset infoframe engine packets */ + reg = io_read(sd, REG_HDMI_INFO_RST); + io_write(sd, REG_HDMI_INFO_RST, info_rst); + + /* if infoframe engine has been reset clear INT_FLG_MODE */ + if (reg & RESET_IF) { + reg = io_read(sd, REG_INT_FLG_CLR_MODE); + io_write(sd, REG_INT_FLG_CLR_MODE, reg); + } + + /* Disable REFTIM to restart start-up-sequencer (SUS) */ + reg = io_read(sd, REG_RATE_CTRL); + reg &= ~RATE_REFTIM_ENABLE; + if (!reset_sus) + reg |= RATE_REFTIM_ENABLE; + reg = io_write(sd, REG_RATE_CTRL, reg); + + return 0; +} + +static void +tda1997x_power_mode(struct tda1997x_state *state, bool enable) +{ + struct v4l2_subdev *sd = &state->sd; + u8 reg; + + if (enable) { + /* Automatic control of TMDS */ + io_write(sd, REG_PON_OVR_EN, PON_DIS); + /* Enable current bias unit */ + io_write(sd, REG_CFG1, PON_EN); + /* Enable deep color PLL */ + io_write(sd, REG_DEEP_PLL7_BYP, PON_DIS); + /* Output buffers active */ + reg = io_read(sd, REG_OF); + reg &= ~OF_VP_ENABLE; + io_write(sd, REG_OF, reg); + } else { + /* Power down EDID mode sequence */ + /* Output buffers in HiZ */ + reg = io_read(sd, REG_OF); + reg |= OF_VP_ENABLE; + io_write(sd, REG_OF, reg); + /* Disable deep color PLL */ + io_write(sd, REG_DEEP_PLL7_BYP, PON_EN); + /* Disable current bias unit */ + io_write(sd, REG_CFG1, PON_DIS); + /* Manual control of TMDS */ + io_write(sd, REG_PON_OVR_EN, PON_EN); + } +} + +static bool +tda1997x_detect_tx_5v(struct v4l2_subdev *sd) +{ + u8 reg = io_read(sd, REG_DETECT_5V); + + return ((reg & DETECT_5V_SEL) ? 1 : 0); +} + +static bool +tda1997x_detect_tx_hpd(struct v4l2_subdev *sd) +{ + u8 reg = io_read(sd, REG_DETECT_5V); + + return ((reg & DETECT_HPD) ? 1 : 0); +} + +static int +tda1997x_detect_std(struct tda1997x_state *state) +{ + struct v4l2_subdev *sd = &state->sd; + u32 vper; + u16 hper; + u16 hsper; + int i; + + /* + * Read the FMT registers + * REG_V_PER: Period of a frame (or two fields) in MCLK(27MHz) cycles + * REG_H_PER: Period of a line in MCLK(27MHz) cycles + * REG_HS_WIDTH: Period of horiz sync pulse in MCLK(27MHz) cycles + */ + vper = io_read24(sd, REG_V_PER) & MASK_VPER; + hper = io_read16(sd, REG_H_PER) & MASK_HPER; + hsper = io_read16(sd, REG_HS_WIDTH) & MASK_HSWIDTH; + if (!vper || !hper || !hsper) + return -ENOLINK; + v4l2_dbg(1, debug, sd, "Signal Timings: %u/%u/%u\n", vper, hper, hsper); + + /* look for matching timings */ + for (i = 0; i < ARRAY_SIZE(tda1997x_hdmi_modes); i++) { + const struct v4l2_bt_timings *bt = &tda1997x_hdmi_modes[i].bt; + u32 lines, width, _hper, _hsper; + u32 vmin, vmax, hmin, hmax, hsmin, hsmax; + bool vmatch, hmatch, hsmatch; + + width = V4L2_DV_BT_FRAME_WIDTH(bt); + lines = V4L2_DV_BT_FRAME_HEIGHT(bt); + _hper = (u32)bt->pixelclock / width; + if (bt->interlaced) + lines /= 2; + /* vper +/- 0.7% */ + vmin = ((27000000 / 1000) * 993) / _hper * lines; + vmax = ((27000000 / 1000) * 1007) / _hper * lines; + /* hper +/- 1.0% */ + hmin = ((27000000 / 100) * 99) / _hper; + hmax = ((27000000 / 100) * 101) / _hper; + /* hsper +/- 2 (take care to avoid 32bit overflow) */ + _hsper = 27000 * bt->hsync / ((u32)bt->pixelclock/1000); + hsmin = _hsper - 2; + hsmax = _hsper + 2; + + /* vmatch matches the framerate */ + vmatch = ((vper <= vmax) && (vper >= vmin)) ? 1 : 0; + /* hmatch matches the width */ + hmatch = ((hper <= hmax) && (hper >= hmin)) ? 1 : 0; + /* hsmatch matches the hswidth */ + hsmatch = ((hsper <= hsmax) && (hsper >= hsmin)) ? 1 : 0; + if (hmatch && vmatch && hsmatch) { + state->detected_timings = &tda1997x_hdmi_modes[i]; + v4l2_print_dv_timings(sd->name, "Detected format: ", + state->detected_timings, false); + return 0; + } + } + + v4l_err(state->client, "no resolution match for timings: %d/%d/%d\n", + vper, hper, hsper); + return -EINVAL; +} + +/* some sort of errata workaround for chip revision 0 (N1) */ +static void tda1997x_reset_n1(struct tda1997x_state *state) +{ + struct v4l2_subdev *sd = &state->sd; + u8 reg; + + /* clear HDMI mode flag in BCAPS */ + io_write(sd, REG_CLK_CFG, CLK_CFG_SEL_ACLK_EN | CLK_CFG_SEL_ACLK); + io_write(sd, REG_PON_OVR_EN, PON_EN); + io_write(sd, REG_PON_CBIAS, PON_EN); + io_write(sd, REG_PON_PLL, PON_EN); + + reg = io_read(sd, REG_MODE_REC_CFG1); + reg &= ~0x06; + reg |= 0x02; + io_write(sd, REG_MODE_REC_CFG1, reg); + io_write(sd, REG_CLK_CFG, CLK_CFG_DIS); + io_write(sd, REG_PON_OVR_EN, PON_DIS); + reg = io_read(sd, REG_MODE_REC_CFG1); + reg &= ~0x06; + io_write(sd, REG_MODE_REC_CFG1, reg); +} + +/* + * Activity detection must only be notified when stable_clk_x AND active_x + * bits are set to 1. If only stable_clk_x bit is set to 1 but not + * active_x, it means that the TMDS clock is not in the defined range + * and activity detection must not be notified. + */ +static u8 +tda1997x_read_activity_status_regs(struct v4l2_subdev *sd) +{ + u8 reg, status = 0; + + /* Read CLK_A_STATUS register */ + reg = io_read(sd, REG_CLK_A_STATUS); + /* when stable_clk_x is set to 1, check active_x bit */ + if ((reg & MASK_CLK_STABLE) && !(reg & MASK_CLK_ACTIVE)) + reg &= ~MASK_CLK_STABLE; + status |= ((reg & MASK_CLK_STABLE) >> 2); + + /* Read CLK_B_STATUS register */ + reg = io_read(sd, REG_CLK_B_STATUS); + /* when stable_clk_x is set to 1, check active_x bit */ + if ((reg & MASK_CLK_STABLE) && !(reg & MASK_CLK_ACTIVE)) + reg &= ~MASK_CLK_STABLE; + status |= ((reg & MASK_CLK_STABLE) >> 1); + + /* Read the SUS_STATUS register */ + reg = io_read(sd, REG_SUS_STATUS); + + /* If state = 5 => TMDS is locked */ + if ((reg & MASK_SUS_STATUS) == LAST_STATE_REACHED) + status |= MASK_SUS_STATE; + else + status &= ~MASK_SUS_STATE; + + return status; +} + +/* parse an infoframe and do some sanity checks on it */ +static unsigned int +tda1997x_parse_infoframe(struct tda1997x_state *state, u16 addr) +{ + struct v4l2_subdev *sd = &state->sd; + struct v4l2_hdmi_colorimetry *c = &state->colorimetry; + union hdmi_infoframe frame; + u8 buffer[40]; + u8 reg; + int len, err; + + /* read data */ + len = io_readn(sd, addr, sizeof(buffer), buffer); + err = hdmi_infoframe_unpack(&frame, buffer); + if (err) { + v4l_err(state->client, + "failed parsing %d byte infoframe: 0x%04x/0x%02x\n", + len, addr, buffer[0]); + return err; + } + hdmi_infoframe_log(KERN_INFO, &state->client->dev, &frame); + switch (frame.any.type) { + /* Audio InfoFrame: see HDMI spec 8.2.2 */ + case HDMI_INFOFRAME_TYPE_AUDIO: + /* sample rate */ + switch (frame.audio.sample_frequency) { + case HDMI_AUDIO_SAMPLE_FREQUENCY_32000: + state->audio_samplerate = 32000; + break; + case HDMI_AUDIO_SAMPLE_FREQUENCY_44100: + state->audio_samplerate = 44100; + break; + case HDMI_AUDIO_SAMPLE_FREQUENCY_48000: + state->audio_samplerate = 48000; + break; + case HDMI_AUDIO_SAMPLE_FREQUENCY_88200: + state->audio_samplerate = 88200; + break; + case HDMI_AUDIO_SAMPLE_FREQUENCY_96000: + state->audio_samplerate = 96000; + break; + case HDMI_AUDIO_SAMPLE_FREQUENCY_176400: + state->audio_samplerate = 176400; + break; + case HDMI_AUDIO_SAMPLE_FREQUENCY_192000: + state->audio_samplerate = 192000; + break; + default: + case HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM: + break; + } + + /* sample size */ + switch (frame.audio.sample_size) { + case HDMI_AUDIO_SAMPLE_SIZE_16: + state->audio_samplesize = 16; + break; + case HDMI_AUDIO_SAMPLE_SIZE_20: + state->audio_samplesize = 20; + break; + case HDMI_AUDIO_SAMPLE_SIZE_24: + state->audio_samplesize = 24; + break; + case HDMI_AUDIO_SAMPLE_SIZE_STREAM: + default: + break; + } + + /* Channel Count */ + state->audio_channels = frame.audio.channels; + if (frame.audio.channel_allocation && + frame.audio.channel_allocation != state->audio_ch_alloc) { + /* use the channel assignment from the infoframe */ + state->audio_ch_alloc = frame.audio.channel_allocation; + tda1997x_configure_audout(sd, state->audio_ch_alloc); + /* reset the audio FIFO */ + tda1997x_hdmi_info_reset(sd, RESET_AUDIO, false); + } + break; + + /* Auxiliary Video information (AVI) InfoFrame: see HDMI spec 8.2.1 */ + case HDMI_INFOFRAME_TYPE_AVI: + state->avi_infoframe = frame.avi; + state->colorimetry = v4l2_hdmi_rx_colorimetry(&frame.avi, NULL, + state->timings.bt.height); + /* If ycbcr_enc is V4L2_YCBCR_ENC_DEFAULT, we receive RGB */ + if (c->ycbcr_enc == V4L2_YCBCR_ENC_DEFAULT) { + switch (state->rgb_quantization_range) { + case V4L2_DV_RGB_RANGE_LIMITED: + c->quantization = V4L2_QUANTIZATION_FULL_RANGE; + break; + case V4L2_DV_RGB_RANGE_FULL: + c->quantization = V4L2_QUANTIZATION_LIM_RANGE; + break; + } + } + v4l_dbg(1, debug, state->client, + "colorspace=%d/%d colorimetry=%d range=%s content=%d\n", + frame.avi.colorspace, c->colorspace, + frame.avi.colorimetry, + v4l2_quantization_names[c->quantization], + frame.avi.content_type); + + /* configure upsampler: 0=bypass 1=repeatchroma 2=interpolate */ + reg = io_read(sd, REG_PIX_REPEAT); + reg &= ~PIX_REPEAT_MASK_UP_SEL; + if (frame.avi.colorspace == HDMI_COLORSPACE_YUV422) + reg |= (PIX_REPEAT_CHROMA << PIX_REPEAT_SHIFT); + io_write(sd, REG_PIX_REPEAT, reg); + + /* ConfigurePixelRepeater: repeat n-times each pixel */ + reg = io_read(sd, REG_PIX_REPEAT); + reg &= ~PIX_REPEAT_MASK_REP; + reg |= frame.avi.pixel_repeat; + io_write(sd, REG_PIX_REPEAT, reg); + + /* configure the receiver with the new colorspace */ + tda1997x_configure_csc(sd); + break; + default: + break; + } + return 0; +} + +static void tda1997x_irq_sus(struct tda1997x_state *state, u8 *flags) +{ + struct v4l2_subdev *sd = &state->sd; + u8 reg, source; + + source = io_read(sd, REG_INT_FLG_CLR_SUS); + io_write(sd, REG_INT_FLG_CLR_SUS, source); + + if (source & MASK_MPT) { + /* reset MTP in use flag if set */ + if (state->mptrw_in_progress) + state->mptrw_in_progress = 0; + } + + if (source & MASK_SUS_END) { + /* reset audio FIFO */ + reg = io_read(sd, REG_HDMI_INFO_RST); + reg |= MASK_SR_FIFO_FIFO_CTRL; + io_write(sd, REG_HDMI_INFO_RST, reg); + reg &= ~MASK_SR_FIFO_FIFO_CTRL; + io_write(sd, REG_HDMI_INFO_RST, reg); + + /* reset HDMI flags */ + state->hdmi_status = 0; + } + + /* filter FMT interrupt based on SUS state */ + reg = io_read(sd, REG_SUS_STATUS); + if (((reg & MASK_SUS_STATUS) != LAST_STATE_REACHED) + || (source & MASK_MPT)) { + source &= ~MASK_FMT; + } + + if (source & (MASK_FMT | MASK_SUS_END)) { + reg = io_read(sd, REG_SUS_STATUS); + if ((reg & MASK_SUS_STATUS) != LAST_STATE_REACHED) { + v4l_err(state->client, "BAD SUS STATUS\n"); + return; + } + + /* There is new activity, the status for HDCP repeater state */ + state->state_c5_reached = 0; + + /* Detect the new resolution */ + if (!tda1997x_detect_std(state)) + v4l2_subdev_notify_event(&state->sd, &tda1997x_ev_fmt); + } +} + +static void tda1997x_irq_ddc(struct tda1997x_state *state, u8 *flags) +{ + struct v4l2_subdev *sd = &state->sd; + u8 source; + + source = io_read(sd, REG_INT_FLG_CLR_DDC); + io_write(sd, REG_INT_FLG_CLR_DDC, source); + if (source & MASK_EDID_MTP) { + /* reset MTP in use flag if set */ + if (state->mptrw_in_progress) + state->mptrw_in_progress = 0; + } + + /* Detection of +5V */ + if (source & MASK_DET_5V) { + v4l2_ctrl_s_ctrl(state->detect_tx_5v_ctrl, + tda1997x_detect_tx_5v(sd)); + } +} + +static void tda1997x_irq_rate(struct tda1997x_state *state, u8 *flags) +{ + struct v4l2_subdev *sd = &state->sd; + u8 reg, source; + + u8 irq_status, last_irq_status; + + source = io_read(sd, REG_INT_FLG_CLR_RATE); + io_write(sd, REG_INT_FLG_CLR_RATE, source); + + /* read status regs */ + last_irq_status = irq_status = tda1997x_read_activity_status_regs(sd); + + /* + * read clock status reg until INT_FLG_CLR_RATE is still 0 + * after the read to make sure its the last one + */ + reg = source; + while (reg != 0) { + irq_status = tda1997x_read_activity_status_regs(sd); + reg = io_read(sd, REG_INT_FLG_CLR_RATE); + io_write(sd, REG_INT_FLG_CLR_RATE, reg); + source |= reg; + } + + /* we only pay attention to stability change events */ + if (source & (MASK_RATE_A_ST | MASK_RATE_B_ST)) { + int input = (source & MASK_RATE_A_ST)?0:1; + u8 mask = 1<<input; + + /* state change */ + if ((irq_status & mask) != (state->activity_status & mask)) { + /* activity lost */ + if ((irq_status & mask) == 0) { + v4l_info(state->client, + "HDMI-%c: Digital Activity Lost\n", + input+'A'); + + /* bypass up/down sampler and pixel repeater */ + reg = io_read(sd, REG_PIX_REPEAT); + reg &= ~PIX_REPEAT_MASK_UP_SEL; + reg &= ~PIX_REPEAT_MASK_REP; + io_write(sd, REG_PIX_REPEAT, reg); + + if (state->chip_revision == 0) + tda1997x_reset_n1(state); + + state->detected_timings = NULL; + state->input_detect[input] = 0; + v4l2_subdev_notify_event(sd, &tda1997x_ev_fmt); + } + + /* activity detected */ + else { + v4l_info(state->client, + "HDMI-%c: Digital Activity Detected\n", + input+'A'); + state->input_detect[input] = 1; + } + + /* hold onto current state */ + state->activity_status = (irq_status & mask); + } + } +} + +static void tda1997x_irq_info(struct tda1997x_state *state, u8 *flags) +{ + struct v4l2_subdev *sd = &state->sd; + u8 source; + + source = io_read(sd, REG_INT_FLG_CLR_INFO); + io_write(sd, REG_INT_FLG_CLR_INFO, source); + + /* Audio infoframe */ + if (source & MASK_AUD_IF) { + tda1997x_parse_infoframe(state, AUD_IF); + source &= ~MASK_AUD_IF; + } + + /* Source Product Descriptor infoframe change */ + if (source & MASK_SPD_IF) { + tda1997x_parse_infoframe(state, SPD_IF); + source &= ~MASK_SPD_IF; + } + + /* Auxiliary Video Information infoframe */ + if (source & MASK_AVI_IF) { + tda1997x_parse_infoframe(state, AVI_IF); + source &= ~MASK_AVI_IF; + } +} + +static void tda1997x_irq_audio(struct tda1997x_state *state, u8 *flags) +{ + struct v4l2_subdev *sd = &state->sd; + u8 reg, source; + + source = io_read(sd, REG_INT_FLG_CLR_AUDIO); + io_write(sd, REG_INT_FLG_CLR_AUDIO, source); + + /* reset audio FIFO on FIFO pointer error or audio mute */ + if (source & MASK_ERROR_FIFO_PT || + source & MASK_MUTE_FLG) { + /* audio reset audio FIFO */ + reg = io_read(sd, REG_SUS_STATUS); + if ((reg & MASK_SUS_STATUS) == LAST_STATE_REACHED) { + reg = io_read(sd, REG_HDMI_INFO_RST); + reg |= MASK_SR_FIFO_FIFO_CTRL; + io_write(sd, REG_HDMI_INFO_RST, reg); + reg &= ~MASK_SR_FIFO_FIFO_CTRL; + io_write(sd, REG_HDMI_INFO_RST, reg); + /* reset channel status IT if present */ + source &= ~(MASK_CH_STATE); + } + } + if (source & MASK_AUDIO_FREQ_FLG) { + static const int freq[] = { + 0, 32000, 44100, 48000, 88200, 96000, 176400, 192000 + }; + + reg = io_read(sd, REG_AUDIO_FREQ); + state->audio_samplerate = freq[reg & 7]; + v4l_info(state->client, "Audio Frequency Change: %dHz\n", + state->audio_samplerate); + } + if (source & MASK_AUDIO_FLG) { + reg = io_read(sd, REG_AUDIO_FLAGS); + if (reg & BIT(AUDCFG_TYPE_DST)) + state->audio_type = AUDCFG_TYPE_DST; + if (reg & BIT(AUDCFG_TYPE_OBA)) + state->audio_type = AUDCFG_TYPE_OBA; + if (reg & BIT(AUDCFG_TYPE_HBR)) + state->audio_type = AUDCFG_TYPE_HBR; + if (reg & BIT(AUDCFG_TYPE_PCM)) + state->audio_type = AUDCFG_TYPE_PCM; + v4l_info(state->client, "Audio Type: %s\n", + audtype_names[state->audio_type]); + } +} + +static void tda1997x_irq_hdcp(struct tda1997x_state *state, u8 *flags) +{ + struct v4l2_subdev *sd = &state->sd; + u8 reg, source; + + source = io_read(sd, REG_INT_FLG_CLR_HDCP); + io_write(sd, REG_INT_FLG_CLR_HDCP, source); + + /* reset MTP in use flag if set */ + if (source & MASK_HDCP_MTP) + state->mptrw_in_progress = 0; + if (source & MASK_STATE_C5) { + /* REPEATER: mask AUDIO and IF irqs to avoid IF during auth */ + reg = io_read(sd, REG_INT_MASK_TOP); + reg &= ~(INTERRUPT_AUDIO | INTERRUPT_INFO); + io_write(sd, REG_INT_MASK_TOP, reg); + *flags &= (INTERRUPT_AUDIO | INTERRUPT_INFO); + } +} + +static irqreturn_t tda1997x_isr_thread(int irq, void *d) +{ + struct tda1997x_state *state = d; + struct v4l2_subdev *sd = &state->sd; + u8 flags; + + mutex_lock(&state->lock); + do { + /* read interrupt flags */ + flags = io_read(sd, REG_INT_FLG_CLR_TOP); + if (flags == 0) + break; + + /* SUS interrupt source (Input activity events) */ + if (flags & INTERRUPT_SUS) + tda1997x_irq_sus(state, &flags); + /* DDC interrupt source (Display Data Channel) */ + else if (flags & INTERRUPT_DDC) + tda1997x_irq_ddc(state, &flags); + /* RATE interrupt source (Digital Input activity) */ + else if (flags & INTERRUPT_RATE) + tda1997x_irq_rate(state, &flags); + /* Infoframe change interrupt */ + else if (flags & INTERRUPT_INFO) + tda1997x_irq_info(state, &flags); + /* Audio interrupt source: + * freq change, DST,OBA,HBR,ASP flags, mute, FIFO err + */ + else if (flags & INTERRUPT_AUDIO) + tda1997x_irq_audio(state, &flags); + /* HDCP interrupt source (content protection) */ + if (flags & INTERRUPT_HDCP) + tda1997x_irq_hdcp(state, &flags); + } while (flags != 0); + mutex_unlock(&state->lock); + + return IRQ_HANDLED; +} + +static bool tda1997x_check_dv_timings(const struct v4l2_dv_timings *timings, + void *hdl) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(tda1997x_hdmi_modes); i++) { + if (v4l2_match_dv_timings(timings, &tda1997x_hdmi_modes[i], + 0, false)) + return true; + } + + return false; +} + +/* ----------------------------------------------------------------------------- + * v4l2_subdev_video_ops + */ + +static int +tda1997x_g_input_status(struct v4l2_subdev *sd, u32 *status) +{ + struct tda1997x_state *state = to_state(sd); + + mutex_lock(&state->lock); + if (state->detected_timings) + *status = 0; + else + *status |= V4L2_IN_ST_NO_SIGNAL; + mutex_unlock(&state->lock); + + return 0; +}; + +static int tda1997x_s_dv_timings(struct v4l2_subdev *sd, + struct v4l2_dv_timings *timings) +{ + struct tda1997x_state *state = to_state(sd); + int ret; + + v4l_dbg(1, debug, state->client, "%s\n", __func__); + if (!timings) + return -EINVAL; + + if (v4l2_match_dv_timings(&state->timings, timings, 0, false)) + return 0; /* no changes */ + + if (!v4l2_valid_dv_timings(timings, &tda1997x_dv_timings_cap, + tda1997x_check_dv_timings, state)) + return -ERANGE; + + mutex_lock(&state->lock); + state->timings = *timings; + /* setup frame detection window and VHREF timing generator */ + ret = tda1997x_configure_vhref(sd); + if (ret) + goto error; + /* configure colorspace conversion */ + ret = tda1997x_configure_csc(sd); + if (ret) + goto error; + mutex_unlock(&state->lock); + + return 0; + +error: + mutex_unlock(&state->lock); + return ret; +} + +static int tda1997x_g_dv_timings(struct v4l2_subdev *sd, + struct v4l2_dv_timings *timings) +{ + struct tda1997x_state *state = to_state(sd); + + v4l_dbg(1, debug, state->client, "%s\n", __func__); + if (!timings) + return -EINVAL; + + mutex_lock(&state->lock); + *timings = state->timings; + mutex_unlock(&state->lock); + + return 0; +} + +static int tda1997x_query_dv_timings(struct v4l2_subdev *sd, + struct v4l2_dv_timings *timings) +{ + struct tda1997x_state *state = to_state(sd); + int ret; + + v4l_dbg(1, debug, state->client, "%s\n", __func__); + if (!timings) + return -EINVAL; + + memset(timings, 0, sizeof(struct v4l2_dv_timings)); + mutex_lock(&state->lock); + ret = tda1997x_detect_std(state); + if (!ret) + *timings = *state->detected_timings; + mutex_unlock(&state->lock); + + return ret; +} + +static int tda1997x_s_stream(struct v4l2_subdev *sd, int enable) +{ + struct tda1997x_state *state = to_state(sd); + + v4l_dbg(1, debug, state->client, "%s %d\n", __func__, enable); + mutex_lock(&state->lock); + if (!state->detected_timings) + v4l_dbg(1, debug, state->client, "Invalid HDMI signal\n"); + mutex_unlock(&state->lock); + + return 0; +} + +static const struct v4l2_subdev_video_ops tda1997x_video_ops = { + .g_input_status = tda1997x_g_input_status, + .s_dv_timings = tda1997x_s_dv_timings, + .g_dv_timings = tda1997x_g_dv_timings, + .query_dv_timings = tda1997x_query_dv_timings, + .s_stream = tda1997x_s_stream, +}; + + +/* ----------------------------------------------------------------------------- + * v4l2_subdev_pad_ops + */ + +static int tda1997x_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_mbus_code_enum *code) +{ + struct tda1997x_state *state = to_state(sd); + + v4l_dbg(1, debug, state->client, "%s %d/%d\n", __func__, + code->index, ARRAY_SIZE(state->mbus_codes)); + if (code->index >= ARRAY_SIZE(state->mbus_codes)) + return -EINVAL; + + if (!state->mbus_codes[code->index]) + return -EINVAL; + + code->code = state->mbus_codes[code->index]; + + return 0; +} + +static int tda1997x_fill_format(struct tda1997x_state *state, + struct v4l2_mbus_framefmt *format) +{ + const struct v4l2_bt_timings *bt; + + v4l_dbg(1, debug, state->client, "%s\n", __func__); + + if (!state->detected_timings) + return -EINVAL; + + memset(format, 0, sizeof(*format)); + bt = &state->detected_timings->bt; + format->width = bt->width; + format->height = bt->height; + format->colorspace = state->colorimetry.colorspace; + format->field = (bt->interlaced) ? + V4L2_FIELD_SEQ_TB : V4L2_FIELD_NONE; + + return 0; +} + +static int tda1997x_get_format(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *format) +{ + struct tda1997x_state *state = to_state(sd); + + v4l_dbg(1, debug, state->client, "%s pad=%d which=%d\n", + __func__, format->pad, format->which); + if (format->pad != TDA1997X_PAD_SOURCE) + return -EINVAL; + + tda1997x_fill_format(state, &format->format); + + if (format->which == V4L2_SUBDEV_FORMAT_TRY) { + struct v4l2_mbus_framefmt *fmt; + + fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad); + format->format.code = fmt->code; + } else + format->format.code = state->mbus_code; + + return 0; +} + +static int tda1997x_set_format(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *format) +{ + struct tda1997x_state *state = to_state(sd); + u32 code = format->format.code; + + v4l_dbg(1, debug, state->client, "%s pad=%d which=%d fmt=0x%x\n", + __func__, format->pad, format->which, format->format.code); + if (format->pad != TDA1997X_PAD_SOURCE) + return -EINVAL; + + tda1997x_fill_format(state, &format->format); + format->format.code = code; + + if (format->which == V4L2_SUBDEV_FORMAT_TRY) { + struct v4l2_mbus_framefmt *fmt; + + fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad); + *fmt = format->format; + } else { + int ret = tda1997x_setup_format(state, format->format.code); + if (ret) + return ret; + /* mbus_code has changed - re-configure csc/vidout */ + tda1997x_configure_csc(sd); + tda1997x_configure_vidout(state); + } + + return 0; +} + +static int tda1997x_get_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid) +{ + struct tda1997x_state *state = to_state(sd); + + v4l_dbg(1, debug, state->client, "%s pad=%d\n", __func__, edid->pad); + memset(edid->reserved, 0, sizeof(edid->reserved)); + + if (!state->edid.present) + return -ENODATA; + + if (edid->start_block == 0 && edid->blocks == 0) { + edid->blocks = state->edid.blocks; + return 0; + } + + if (edid->start_block >= state->edid.blocks) + return -EINVAL; + + if (edid->start_block + edid->blocks > state->edid.blocks) + edid->blocks = state->edid.blocks - edid->start_block; + + memcpy(edid->edid, state->edid.edid + edid->start_block * 128, + edid->blocks * 128); + + return 0; +} + +static int tda1997x_set_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid) +{ + struct tda1997x_state *state = to_state(sd); + int i; + + v4l_dbg(1, debug, state->client, "%s pad=%d\n", __func__, edid->pad); + memset(edid->reserved, 0, sizeof(edid->reserved)); + + if (edid->start_block != 0) + return -EINVAL; + + if (edid->blocks == 0) { + state->edid.blocks = 0; + state->edid.present = 0; + tda1997x_disable_edid(sd); + return 0; + } + + if (edid->blocks > 2) { + edid->blocks = 2; + return -E2BIG; + } + + tda1997x_disable_edid(sd); + + /* write base EDID */ + for (i = 0; i < 128; i++) + io_write(sd, REG_EDID_IN_BYTE0 + i, edid->edid[i]); + + /* write CEA Extension */ + for (i = 0; i < 128; i++) + io_write(sd, REG_EDID_IN_BYTE128 + i, edid->edid[i+128]); + + tda1997x_enable_edid(sd); + + return 0; +} + +static int tda1997x_get_dv_timings_cap(struct v4l2_subdev *sd, + struct v4l2_dv_timings_cap *cap) +{ + *cap = tda1997x_dv_timings_cap; + return 0; +} + +static int tda1997x_enum_dv_timings(struct v4l2_subdev *sd, + struct v4l2_enum_dv_timings *timings) +{ + struct tda1997x_state *state = to_state(sd); + + return v4l2_enum_dv_timings_cap(timings, &tda1997x_dv_timings_cap, + tda1997x_check_dv_timings, state); +} + +static const struct v4l2_subdev_pad_ops tda1997x_pad_ops = { + .enum_mbus_code = tda1997x_enum_mbus_code, + .get_fmt = tda1997x_get_format, + .set_fmt = tda1997x_set_format, + .get_edid = tda1997x_get_edid, + .set_edid = tda1997x_set_edid, + .dv_timings_cap = tda1997x_get_dv_timings_cap, + .enum_dv_timings = tda1997x_enum_dv_timings, +}; + +/* ----------------------------------------------------------------------------- + * v4l2_subdev_core_ops + */ + +static int tda1997x_log_infoframe(struct v4l2_subdev *sd, int addr) +{ + struct tda1997x_state *state = to_state(sd); + union hdmi_infoframe frame; + u8 buffer[40]; + int len, err; + + /* read data */ + len = io_readn(sd, addr, sizeof(buffer), buffer); + v4l2_dbg(1, debug, sd, "infoframe: addr=%d len=%d\n", addr, len); + err = hdmi_infoframe_unpack(&frame, buffer); + if (err) { + v4l_err(state->client, + "failed parsing %d byte infoframe: 0x%04x/0x%02x\n", + len, addr, buffer[0]); + return err; + } + hdmi_infoframe_log(KERN_INFO, &state->client->dev, &frame); + + return 0; +} + +static int tda1997x_log_status(struct v4l2_subdev *sd) +{ + struct tda1997x_state *state = to_state(sd); + struct v4l2_dv_timings timings; + struct hdmi_avi_infoframe *avi = &state->avi_infoframe; + + v4l2_info(sd, "-----Chip status-----\n"); + v4l2_info(sd, "Chip: %s N%d\n", state->info->name, + state->chip_revision + 1); + v4l2_info(sd, "EDID Enabled: %s\n", state->edid.present ? "yes" : "no"); + + v4l2_info(sd, "-----Signal status-----\n"); + v4l2_info(sd, "Cable detected (+5V power): %s\n", + tda1997x_detect_tx_5v(sd) ? "yes" : "no"); + v4l2_info(sd, "HPD detected: %s\n", + tda1997x_detect_tx_hpd(sd) ? "yes" : "no"); + + v4l2_info(sd, "-----Video Timings-----\n"); + if (tda1997x_query_dv_timings(sd, &timings)) + v4l2_info(sd, "No video detected\n"); + else + v4l2_print_dv_timings(sd->name, "Detected format: ", + &timings, true); + v4l2_print_dv_timings(sd->name, "Configured format: ", + &state->timings, true); + + v4l2_info(sd, "-----Color space-----\n"); + v4l2_info(sd, "Input color space: %s %s %s", + hdmi_colorspace_names[avi->colorspace], + (avi->colorspace == HDMI_COLORSPACE_RGB) ? "" : + hdmi_colorimetry_names[avi->colorimetry], + v4l2_quantization_names[state->colorimetry.quantization]); + v4l2_info(sd, "Output color space: %s", + vidfmt_names[state->vid_fmt]); + v4l2_info(sd, "Color space conversion: %s", state->conv ? + state->conv->name : "None"); + + v4l2_info(sd, "-----Audio-----\n"); + if (state->audio_channels) { + v4l2_info(sd, "audio: %dch %dHz\n", state->audio_channels, + state->audio_samplerate); + } else { + v4l2_info(sd, "audio: none\n"); + } + + v4l2_info(sd, "-----Infoframes-----\n"); + tda1997x_log_infoframe(sd, AUD_IF); + tda1997x_log_infoframe(sd, SPD_IF); + tda1997x_log_infoframe(sd, AVI_IF); + + return 0; +} + +static int tda1997x_subscribe_event(struct v4l2_subdev *sd, + struct v4l2_fh *fh, + struct v4l2_event_subscription *sub) +{ + switch (sub->type) { + case V4L2_EVENT_SOURCE_CHANGE: + return v4l2_src_change_event_subdev_subscribe(sd, fh, sub); + case V4L2_EVENT_CTRL: + return v4l2_ctrl_subdev_subscribe_event(sd, fh, sub); + default: + return -EINVAL; + } +} + +static const struct v4l2_subdev_core_ops tda1997x_core_ops = { + .log_status = tda1997x_log_status, + .subscribe_event = tda1997x_subscribe_event, + .unsubscribe_event = v4l2_event_subdev_unsubscribe, +}; + +/* ----------------------------------------------------------------------------- + * v4l2_subdev_ops + */ + +static const struct v4l2_subdev_ops tda1997x_subdev_ops = { + .core = &tda1997x_core_ops, + .video = &tda1997x_video_ops, + .pad = &tda1997x_pad_ops, +}; + +/* ----------------------------------------------------------------------------- + * v4l2_controls + */ + +static int tda1997x_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct v4l2_subdev *sd = to_sd(ctrl); + struct tda1997x_state *state = to_state(sd); + + switch (ctrl->id) { + /* allow overriding the default RGB quantization range */ + case V4L2_CID_DV_RX_RGB_RANGE: + state->rgb_quantization_range = ctrl->val; + tda1997x_configure_csc(sd); + return 0; + } + + return -EINVAL; +}; + +static int tda1997x_g_volatile_ctrl(struct v4l2_ctrl *ctrl) +{ + struct v4l2_subdev *sd = to_sd(ctrl); + struct tda1997x_state *state = to_state(sd); + + if (ctrl->id == V4L2_CID_DV_RX_IT_CONTENT_TYPE) { + ctrl->val = state->avi_infoframe.content_type; + return 0; + } + return -EINVAL; +}; + +static const struct v4l2_ctrl_ops tda1997x_ctrl_ops = { + .s_ctrl = tda1997x_s_ctrl, + .g_volatile_ctrl = tda1997x_g_volatile_ctrl, +}; + +static int tda1997x_core_init(struct v4l2_subdev *sd) +{ + struct tda1997x_state *state = to_state(sd); + struct tda1997x_platform_data *pdata = &state->pdata; + u8 reg; + int i; + + /* disable HPD */ + io_write(sd, REG_HPD_AUTO_CTRL, HPD_AUTO_HPD_UNSEL); + if (state->chip_revision == 0) { + io_write(sd, REG_MAN_SUS_HDMI_SEL, MAN_DIS_HDCP | MAN_RST_HDCP); + io_write(sd, REG_CGU_DBG_SEL, 1 << CGU_DBG_CLK_SEL_SHIFT); + } + + /* reset infoframe at end of start-up-sequencer */ + io_write(sd, REG_SUS_SET_RGB2, 0x06); + io_write(sd, REG_SUS_SET_RGB3, 0x06); + + /* Enable TMDS pull-ups */ + io_write(sd, REG_RT_MAN_CTRL, RT_MAN_CTRL_RT | + RT_MAN_CTRL_RT_B | RT_MAN_CTRL_RT_A); + + /* enable sync measurement timing */ + tda1997x_cec_write(sd, REG_PWR_CONTROL & 0xff, 0x04); + /* adjust CEC clock divider */ + tda1997x_cec_write(sd, REG_OSC_DIVIDER & 0xff, 0x03); + tda1997x_cec_write(sd, REG_EN_OSC_PERIOD_LSB & 0xff, 0xa0); + io_write(sd, REG_TIMER_D, 0x54); + /* enable power switch */ + reg = tda1997x_cec_read(sd, REG_CONTROL & 0xff); + reg |= 0x20; + tda1997x_cec_write(sd, REG_CONTROL & 0xff, reg); + mdelay(50); + + /* read the chip version */ + reg = io_read(sd, REG_VERSION); + /* get the chip configuration */ + reg = io_read(sd, REG_CMTP_REG10); + + /* enable interrupts we care about */ + io_write(sd, REG_INT_MASK_TOP, + INTERRUPT_HDCP | INTERRUPT_AUDIO | INTERRUPT_INFO | + INTERRUPT_RATE | INTERRUPT_SUS); + /* config_mtp,fmt,sus_end,sus_st */ + io_write(sd, REG_INT_MASK_SUS, MASK_MPT | MASK_FMT | MASK_SUS_END); + /* rate stability change for inputs A/B */ + io_write(sd, REG_INT_MASK_RATE, MASK_RATE_B_ST | MASK_RATE_A_ST); + /* aud,spd,avi*/ + io_write(sd, REG_INT_MASK_INFO, + MASK_AUD_IF | MASK_SPD_IF | MASK_AVI_IF); + /* audio_freq,audio_flg,mute_flg,fifo_err */ + io_write(sd, REG_INT_MASK_AUDIO, + MASK_AUDIO_FREQ_FLG | MASK_AUDIO_FLG | MASK_MUTE_FLG | + MASK_ERROR_FIFO_PT); + /* HDCP C5 state reached */ + io_write(sd, REG_INT_MASK_HDCP, MASK_STATE_C5); + /* 5V detect and HDP pulse end */ + io_write(sd, REG_INT_MASK_DDC, MASK_DET_5V); + /* don't care about AFE/MODE */ + io_write(sd, REG_INT_MASK_AFE, 0); + io_write(sd, REG_INT_MASK_MODE, 0); + + /* clear all interrupts */ + io_write(sd, REG_INT_FLG_CLR_TOP, 0xff); + io_write(sd, REG_INT_FLG_CLR_SUS, 0xff); + io_write(sd, REG_INT_FLG_CLR_DDC, 0xff); + io_write(sd, REG_INT_FLG_CLR_RATE, 0xff); + io_write(sd, REG_INT_FLG_CLR_MODE, 0xff); + io_write(sd, REG_INT_FLG_CLR_INFO, 0xff); + io_write(sd, REG_INT_FLG_CLR_AUDIO, 0xff); + io_write(sd, REG_INT_FLG_CLR_HDCP, 0xff); + io_write(sd, REG_INT_FLG_CLR_AFE, 0xff); + + /* init TMDS equalizer */ + if (state->chip_revision == 0) + io_write(sd, REG_CGU_DBG_SEL, 1 << CGU_DBG_CLK_SEL_SHIFT); + io_write24(sd, REG_CLK_MIN_RATE, CLK_MIN_RATE); + io_write24(sd, REG_CLK_MAX_RATE, CLK_MAX_RATE); + if (state->chip_revision == 0) + io_write(sd, REG_WDL_CFG, WDL_CFG_VAL); + /* DC filter */ + io_write(sd, REG_DEEP_COLOR_CTRL, DC_FILTER_VAL); + /* disable test pattern */ + io_write(sd, REG_SVC_MODE, 0x00); + /* update HDMI INFO CTRL */ + io_write(sd, REG_INFO_CTRL, 0xff); + /* write HDMI INFO EXCEED value */ + io_write(sd, REG_INFO_EXCEED, 3); + + if (state->chip_revision == 0) + tda1997x_reset_n1(state); + + /* + * No HDCP acknowledge when HDCP is disabled + * and reset SUS to force format detection + */ + tda1997x_hdmi_info_reset(sd, NACK_HDCP, true); + + /* Set HPD low */ + tda1997x_manual_hpd(sd, HPD_LOW_BP); + + /* Configure receiver capabilities */ + io_write(sd, REG_HDCP_BCAPS, HDCP_HDMI | HDCP_FAST_REAUTH); + + /* Configure HDMI: Auto HDCP mode, packet controlled mute */ + reg = HDMI_CTRL_MUTE_AUTO << HDMI_CTRL_MUTE_SHIFT; + reg |= HDMI_CTRL_HDCP_AUTO << HDMI_CTRL_HDCP_SHIFT; + io_write(sd, REG_HDMI_CTRL, reg); + + /* reset start-up-sequencer to force format detection */ + tda1997x_hdmi_info_reset(sd, 0, true); + + /* disable matrix conversion */ + reg = io_read(sd, REG_VDP_CTRL); + reg |= VDP_CTRL_MATRIX_BP; + io_write(sd, REG_VDP_CTRL, reg); + + /* set video output mode */ + tda1997x_configure_vidout(state); + + /* configure video output port */ + for (i = 0; i < 9; i++) { + v4l_dbg(1, debug, state->client, "vidout_cfg[%d]=0x%02x\n", i, + pdata->vidout_port_cfg[i]); + io_write(sd, REG_VP35_32_CTRL + i, pdata->vidout_port_cfg[i]); + } + + /* configure audio output port */ + tda1997x_configure_audout(sd, 0); + + /* configure audio clock freq */ + switch (pdata->audout_mclk_fs) { + case 512: + reg = AUDIO_CLOCK_SEL_512FS; + break; + case 256: + reg = AUDIO_CLOCK_SEL_256FS; + break; + case 128: + reg = AUDIO_CLOCK_SEL_128FS; + break; + case 64: + reg = AUDIO_CLOCK_SEL_64FS; + break; + case 32: + reg = AUDIO_CLOCK_SEL_32FS; + break; + default: + reg = AUDIO_CLOCK_SEL_16FS; + break; + } + io_write(sd, REG_AUDIO_CLOCK, reg); + + /* reset advanced infoframes (ISRC1/ISRC2/ACP) */ + tda1997x_hdmi_info_reset(sd, RESET_AI, false); + /* reset infoframe */ + tda1997x_hdmi_info_reset(sd, RESET_IF, false); + /* reset audio infoframes */ + tda1997x_hdmi_info_reset(sd, RESET_AUDIO, false); + /* reset gamut */ + tda1997x_hdmi_info_reset(sd, RESET_GAMUT, false); + + /* get initial HDMI status */ + state->hdmi_status = io_read(sd, REG_HDMI_FLAGS); + + return 0; +} + +static int tda1997x_set_power(struct tda1997x_state *state, bool on) +{ + int ret = 0; + + if (on) { + ret = regulator_bulk_enable(TDA1997X_NUM_SUPPLIES, + state->supplies); + msleep(300); + } else { + ret = regulator_bulk_disable(TDA1997X_NUM_SUPPLIES, + state->supplies); + } + + return ret; +} + +static const struct i2c_device_id tda1997x_i2c_id[] = { + {"tda19971", (kernel_ulong_t)&tda1997x_chip_info[TDA19971]}, + {"tda19973", (kernel_ulong_t)&tda1997x_chip_info[TDA19973]}, + { }, +}; +MODULE_DEVICE_TABLE(i2c, tda1997x_i2c_id); + +static const struct of_device_id tda1997x_of_id[] __maybe_unused = { + { .compatible = "nxp,tda19971", .data = &tda1997x_chip_info[TDA19971] }, + { .compatible = "nxp,tda19973", .data = &tda1997x_chip_info[TDA19973] }, + { }, +}; +MODULE_DEVICE_TABLE(of, tda1997x_of_id); + +static int tda1997x_parse_dt(struct tda1997x_state *state) +{ + struct tda1997x_platform_data *pdata = &state->pdata; + struct v4l2_fwnode_endpoint bus_cfg; + struct device_node *ep; + struct device_node *np; + unsigned int flags; + const char *str; + int ret; + u32 v; + + /* + * setup default values: + * - HREF: active high from start to end of row + * - VS: Vertical Sync active high at beginning of frame + * - DE: Active high when data valid + * - A_CLK: 128*Fs + */ + pdata->vidout_sel_hs = HS_HREF_SEL_HREF_VHREF; + pdata->vidout_sel_vs = VS_VREF_SEL_VREF_HDMI; + pdata->vidout_sel_de = DE_FREF_SEL_DE_VHREF; + + np = state->client->dev.of_node; + ep = of_graph_get_next_endpoint(np, NULL); + if (!ep) + return -EINVAL; + + ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &bus_cfg); + if (ret) { + of_node_put(ep); + return ret; + } + of_node_put(ep); + pdata->vidout_bus_type = bus_cfg.bus_type; + + /* polarity of HS/VS/DE */ + flags = bus_cfg.bus.parallel.flags; + if (flags & V4L2_MBUS_HSYNC_ACTIVE_LOW) + pdata->vidout_inv_hs = 1; + if (flags & V4L2_MBUS_VSYNC_ACTIVE_LOW) + pdata->vidout_inv_vs = 1; + if (flags & V4L2_MBUS_DATA_ACTIVE_LOW) + pdata->vidout_inv_de = 1; + pdata->vidout_bus_width = bus_cfg.bus.parallel.bus_width; + + /* video output port config */ + ret = of_property_count_u32_elems(np, "nxp,vidout-portcfg"); + if (ret > 0) { + u32 reg, val, i; + + for (i = 0; i < ret / 2 && i < 9; i++) { + of_property_read_u32_index(np, "nxp,vidout-portcfg", + i * 2, &reg); + of_property_read_u32_index(np, "nxp,vidout-portcfg", + i * 2 + 1, &val); + if (reg < 9) + pdata->vidout_port_cfg[reg] = val; + } + } else { + v4l_err(state->client, "nxp,vidout-portcfg missing\n"); + return -EINVAL; + } + + /* default to channel layout dictated by packet header */ + pdata->audout_layoutauto = true; + + pdata->audout_format = AUDFMT_TYPE_DISABLED; + if (!of_property_read_string(np, "nxp,audout-format", &str)) { + if (strcmp(str, "i2s") == 0) + pdata->audout_format = AUDFMT_TYPE_I2S; + else if (strcmp(str, "spdif") == 0) + pdata->audout_format = AUDFMT_TYPE_SPDIF; + else { + v4l_err(state->client, "nxp,audout-format invalid\n"); + return -EINVAL; + } + if (!of_property_read_u32(np, "nxp,audout-layout", &v)) { + switch (v) { + case 0: + case 1: + break; + default: + v4l_err(state->client, + "nxp,audout-layout invalid\n"); + return -EINVAL; + } + pdata->audout_layout = v; + } + if (!of_property_read_u32(np, "nxp,audout-width", &v)) { + switch (v) { + case 16: + case 32: + break; + default: + v4l_err(state->client, + "nxp,audout-width invalid\n"); + return -EINVAL; + } + pdata->audout_width = v; + } + if (!of_property_read_u32(np, "nxp,audout-mclk-fs", &v)) { + switch (v) { + case 512: + case 256: + case 128: + case 64: + case 32: + case 16: + break; + default: + v4l_err(state->client, + "nxp,audout-mclk-fs invalid\n"); + return -EINVAL; + } + pdata->audout_mclk_fs = v; + } + } + + return 0; +} + +static int tda1997x_get_regulators(struct tda1997x_state *state) +{ + int i; + + for (i = 0; i < TDA1997X_NUM_SUPPLIES; i++) + state->supplies[i].supply = tda1997x_supply_name[i]; + + return devm_regulator_bulk_get(&state->client->dev, + TDA1997X_NUM_SUPPLIES, + state->supplies); +} + +static int tda1997x_identify_module(struct tda1997x_state *state) +{ + struct v4l2_subdev *sd = &state->sd; + enum tda1997x_type type; + u8 reg; + + /* Read chip configuration*/ + reg = io_read(sd, REG_CMTP_REG10); + state->tmdsb_clk = (reg >> 6) & 0x01; /* use tmds clock B_inv for B */ + state->tmdsb_soc = (reg >> 5) & 0x01; /* tmds of input B */ + state->port_30bit = (reg >> 2) & 0x03; /* 30bit vs 24bit */ + state->output_2p5 = (reg >> 1) & 0x01; /* output supply 2.5v */ + switch ((reg >> 4) & 0x03) { + case 0x00: + type = TDA19971; + break; + case 0x02: + case 0x03: + type = TDA19973; + break; + default: + dev_err(&state->client->dev, "unsupported chip ID\n"); + return -EIO; + } + if (state->info->type != type) { + dev_err(&state->client->dev, "chip id mismatch\n"); + return -EIO; + } + + /* read chip revision */ + state->chip_revision = io_read(sd, REG_CMTP_REG11); + + return 0; +} + +static const struct media_entity_operations tda1997x_media_ops = { + .link_validate = v4l2_subdev_link_validate, +}; + + +/* ----------------------------------------------------------------------------- + * HDMI Audio Codec + */ + +/* refine sample-rate based on HDMI source */ +static int tda1997x_pcm_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct tda1997x_state *state = snd_soc_dai_get_drvdata(dai); + struct snd_soc_codec *codec = dai->codec; + struct snd_pcm_runtime *rtd = substream->runtime; + int rate, err; + + rate = state->audio_samplerate; + err = snd_pcm_hw_constraint_minmax(rtd, SNDRV_PCM_HW_PARAM_RATE, + rate, rate); + if (err < 0) { + dev_err(codec->dev, "failed to constrain samplerate to %dHz\n", + rate); + return err; + } + dev_info(codec->dev, "set samplerate constraint to %dHz\n", rate); + + return 0; +} + +static const struct snd_soc_dai_ops tda1997x_dai_ops = { + .startup = tda1997x_pcm_startup, +}; + +static struct snd_soc_dai_driver tda1997x_audio_dai = { + .name = "tda1997x", + .capture = { + .stream_name = "Capture", + .channels_min = 2, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | + SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 | + SNDRV_PCM_RATE_192000, + }, + .ops = &tda1997x_dai_ops, +}; + +static int tda1997x_codec_probe(struct snd_soc_codec *codec) +{ + return 0; +} + +static int tda1997x_codec_remove(struct snd_soc_codec *codec) +{ + return 0; +} + +static struct snd_soc_codec_driver tda1997x_codec_driver = { + .probe = tda1997x_codec_probe, + .remove = tda1997x_codec_remove, + .reg_word_size = sizeof(u16), +}; + +static int tda1997x_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct tda1997x_state *state; + struct tda1997x_platform_data *pdata; + struct v4l2_subdev *sd; + struct v4l2_ctrl_handler *hdl; + struct v4l2_ctrl *ctrl; + static const struct v4l2_dv_timings cea1920x1080 = + V4L2_DV_BT_CEA_1920X1080P60; + u32 *mbus_codes; + int i, ret; + + /* Check if the adapter supports the needed features */ + if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) + return -EIO; + + state = kzalloc(sizeof(struct tda1997x_state), GFP_KERNEL); + if (!state) + return -ENOMEM; + + state->client = client; + pdata = &state->pdata; + if (IS_ENABLED(CONFIG_OF) && client->dev.of_node) { + const struct of_device_id *oid; + + oid = of_match_node(tda1997x_of_id, client->dev.of_node); + state->info = oid->data; + + ret = tda1997x_parse_dt(state); + if (ret < 0) { + v4l_err(client, "DT parsing error\n"); + goto err_free_state; + } + } else if (client->dev.platform_data) { + struct tda1997x_platform_data *pdata = + client->dev.platform_data; + state->info = + (const struct tda1997x_chip_info *)id->driver_data; + state->pdata = *pdata; + } else { + v4l_err(client, "No platform data\n"); + ret = -ENODEV; + goto err_free_state; + } + + ret = tda1997x_get_regulators(state); + if (ret) + goto err_free_state; + + ret = tda1997x_set_power(state, 1); + if (ret) + goto err_free_state; + + mutex_init(&state->page_lock); + mutex_init(&state->lock); + state->page = 0xff; + + INIT_DELAYED_WORK(&state->delayed_work_enable_hpd, + tda1997x_delayed_work_enable_hpd); + + /* set video format based on chip and bus width */ + ret = tda1997x_identify_module(state); + if (ret) + goto err_free_mutex; + + /* initialize subdev */ + sd = &state->sd; + v4l2_i2c_subdev_init(sd, client, &tda1997x_subdev_ops); + snprintf(sd->name, sizeof(sd->name), "%s %d-%04x", + id->name, i2c_adapter_id(client->adapter), + client->addr); + sd->flags = V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS; + sd->entity.ops = &tda1997x_media_ops; + + /* set allowed mbus modes based on chip, bus-type, and bus-width */ + i = 0; + mbus_codes = state->mbus_codes; + switch (state->info->type) { + case TDA19973: + switch (pdata->vidout_bus_type) { + case V4L2_MBUS_PARALLEL: + switch (pdata->vidout_bus_width) { + case 36: + mbus_codes[i++] = MEDIA_BUS_FMT_RGB121212_1X36; + mbus_codes[i++] = MEDIA_BUS_FMT_YUV12_1X36; + /* fall-through */ + case 24: + mbus_codes[i++] = MEDIA_BUS_FMT_UYVY12_1X24; + break; + } + break; + case V4L2_MBUS_BT656: + switch (pdata->vidout_bus_width) { + case 36: + case 24: + case 12: + mbus_codes[i++] = MEDIA_BUS_FMT_UYVY12_2X12; + mbus_codes[i++] = MEDIA_BUS_FMT_UYVY10_2X10; + mbus_codes[i++] = MEDIA_BUS_FMT_UYVY8_2X8; + break; + } + break; + default: + break; + } + break; + case TDA19971: + switch (pdata->vidout_bus_type) { + case V4L2_MBUS_PARALLEL: + switch (pdata->vidout_bus_width) { + case 24: + mbus_codes[i++] = MEDIA_BUS_FMT_RGB888_1X24; + mbus_codes[i++] = MEDIA_BUS_FMT_YUV8_1X24; + mbus_codes[i++] = MEDIA_BUS_FMT_UYVY12_1X24; + /* fall through */ + case 20: + mbus_codes[i++] = MEDIA_BUS_FMT_UYVY10_1X20; + /* fall through */ + case 16: + mbus_codes[i++] = MEDIA_BUS_FMT_UYVY8_1X16; + break; + } + break; + case V4L2_MBUS_BT656: + switch (pdata->vidout_bus_width) { + case 12: + mbus_codes[i++] = MEDIA_BUS_FMT_UYVY12_2X12; + /* fall through */ + case 10: + mbus_codes[i++] = MEDIA_BUS_FMT_UYVY10_2X10; + /* fall through */ + case 8: + mbus_codes[i++] = MEDIA_BUS_FMT_UYVY8_2X8; + break; + } + break; + default: + break; + } + break; + } + + /* default format */ + tda1997x_setup_format(state, state->mbus_codes[0]); + state->timings = cea1920x1080; + + /* + * default to SRGB full range quantization + * (in case we don't get an infoframe such as DVI signal + */ + state->colorimetry.colorspace = V4L2_COLORSPACE_SRGB; + state->colorimetry.quantization = V4L2_QUANTIZATION_FULL_RANGE; + + /* disable/reset HDCP to get correct I2C access to Rx HDMI */ + io_write(sd, REG_MAN_SUS_HDMI_SEL, MAN_RST_HDCP | MAN_DIS_HDCP); + + /* + * if N2 version, reset compdel_bp as it may generate some small pixel + * shifts in case of embedded sync/or delay lower than 4 + */ + if (state->chip_revision != 0) { + io_write(sd, REG_MAN_SUS_HDMI_SEL, 0x00); + io_write(sd, REG_VDP_CTRL, 0x1f); + } + + v4l_info(client, "NXP %s N%d detected\n", state->info->name, + state->chip_revision + 1); + v4l_info(client, "video: %dbit %s %d formats available\n", + pdata->vidout_bus_width, + (pdata->vidout_bus_type == V4L2_MBUS_PARALLEL) ? + "parallel" : "BT656", + i); + if (pdata->audout_format) { + v4l_info(client, "audio: %dch %s layout%d sysclk=%d*fs\n", + pdata->audout_layout ? 2 : 8, + audfmt_names[pdata->audout_format], + pdata->audout_layout, + pdata->audout_mclk_fs); + } + + ret = 0x34 + ((io_read(sd, REG_SLAVE_ADDR)>>4) & 0x03); + state->client_cec = i2c_new_dummy(client->adapter, ret); + v4l_info(client, "CEC slave address 0x%02x\n", ret); + + ret = tda1997x_core_init(sd); + if (ret) + goto err_free_mutex; + + /* control handlers */ + hdl = &state->hdl; + v4l2_ctrl_handler_init(hdl, 5); + ctrl = v4l2_ctrl_new_std_menu(hdl, &tda1997x_ctrl_ops, + V4L2_CID_DV_RX_IT_CONTENT_TYPE, + V4L2_DV_IT_CONTENT_TYPE_NO_ITC, 0, + V4L2_DV_IT_CONTENT_TYPE_NO_ITC); + if (ctrl) + ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE; + /* custom controls */ + state->detect_tx_5v_ctrl = v4l2_ctrl_new_std(hdl, NULL, + V4L2_CID_DV_RX_POWER_PRESENT, 0, 1, 0, 0); + state->rgb_quantization_range_ctrl = v4l2_ctrl_new_std_menu(hdl, + &tda1997x_ctrl_ops, + V4L2_CID_DV_RX_RGB_RANGE, V4L2_DV_RGB_RANGE_FULL, 0, + V4L2_DV_RGB_RANGE_AUTO); + + /* initialize source pads */ + state->pads[TDA1997X_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE; + ret = media_entity_pads_init(&sd->entity, TDA1997X_NUM_PADS, + state->pads); + if (ret) { + v4l_err(client, "failed entity_init: %d", ret); + goto err_free_mutex; + } + + ret = v4l2_async_register_subdev(sd); + if (ret) + goto err_free_media; + + /* register audio DAI */ + if (pdata->audout_format) { + u64 formats; + + if (pdata->audout_width == 32) + formats = SNDRV_PCM_FMTBIT_S32_LE; + else + formats = SNDRV_PCM_FMTBIT_S16_LE; + tda1997x_audio_dai.capture.formats = formats; + ret = snd_soc_register_codec(&state->client->dev, + &tda1997x_codec_driver, + &tda1997x_audio_dai, 1); + if (ret) { + dev_err(&client->dev, "register audio codec failed\n"); + goto err_free_media; + } + dev_set_drvdata(&state->client->dev, state); + v4l_info(state->client, "registered audio codec\n"); + } + + /* request irq */ + ret = devm_request_threaded_irq(&client->dev, client->irq, + NULL, tda1997x_isr_thread, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + KBUILD_MODNAME, state); + if (ret) { + v4l_err(client, "irq%d reg failed: %d\n", client->irq, ret); + goto err_free_media; + } + + return 0; + +err_free_media: + media_entity_cleanup(&sd->entity); +err_free_mutex: + cancel_delayed_work(&state->delayed_work_enable_hpd); + mutex_destroy(&state->page_lock); + mutex_destroy(&state->lock); +err_free_state: + kfree(state); + dev_err(&client->dev, "%s failed: %d\n", __func__, ret); + + return ret; +} + +static int tda1997x_remove(struct i2c_client *client) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct tda1997x_state *state = to_state(sd); + struct tda1997x_platform_data *pdata = &state->pdata; + + if (pdata->audout_format) { + snd_soc_unregister_codec(&client->dev); + mutex_destroy(&state->audio_lock); + } + + disable_irq(state->client->irq); + tda1997x_power_mode(state, 0); + + v4l2_async_unregister_subdev(sd); + media_entity_cleanup(&sd->entity); + regulator_bulk_disable(TDA1997X_NUM_SUPPLIES, state->supplies); + i2c_unregister_device(state->client_cec); + cancel_delayed_work(&state->delayed_work_enable_hpd); + mutex_destroy(&state->page_lock); + mutex_destroy(&state->lock); + + kfree(state); + + return 0; +} + +static struct i2c_driver tda1997x_i2c_driver = { + .driver = { + .name = "tda1997x", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(tda1997x_of_id), + }, + .probe = tda1997x_probe, + .remove = tda1997x_remove, + .id_table = tda1997x_i2c_id, +}; + +module_i2c_driver(tda1997x_i2c_driver); + +MODULE_AUTHOR("Tim Harvey tharvey@gateworks.com"); +MODULE_DESCRIPTION("TDA1997X HDMI Receiver driver"); +MODULE_LICENSE("GPL v2"); diff --git a/include/media/i2c/tda1997x.h b/include/media/i2c/tda1997x.h new file mode 100644 index 0000000..c6c2a8a --- /dev/null +++ b/include/media/i2c/tda1997x.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * tda1997x - NXP HDMI receiver + * + * Copyright 2017 Tim Harvey tharvey@gateworks.com + * + */ + +#ifndef _TDA1997X_ +#define _TDA1997X_ + +/* Platform Data */ +struct tda1997x_platform_data { + enum v4l2_mbus_type vidout_bus_type; + u32 vidout_bus_width; + u8 vidout_port_cfg[9]; + /* pin polarity (1=invert) */ + bool vidout_inv_de; + bool vidout_inv_hs; + bool vidout_inv_vs; + bool vidout_inv_pclk; + /* clock delays (0=-8, 1=-7 ... 15=+7 pixels) */ + u8 vidout_delay_hs; + u8 vidout_delay_vs; + u8 vidout_delay_de; + u8 vidout_delay_pclk; + /* sync selections (controls how sync pins are derived) */ + u8 vidout_sel_hs; + u8 vidout_sel_vs; + u8 vidout_sel_de; + + /* Audio Port Output */ + int audout_format; + u32 audout_mclk_fs; /* clock multiplier */ + u32 audout_width; /* 13 or 32 bit */ + u32 audout_layout; /* layout0=AP0 layout1=AP0,AP1,AP2,AP3 */ + bool audout_layoutauto; /* audio layout dictated by pkt header */ + bool audout_invert_clk; /* data valid on rising edge of BCLK */ + bool audio_auto_mute; /* enable hardware audio auto-mute */ +}; + +#endif