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/*
* Driver for Analog Devices ADV748X video decoder and HDMI receiver
*
* Copyright (C) 2017 Renesas Electronics Corp.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* Authors:
* Koji Matsuoka <koji.matsuoka.xm@renesas.com>
* Niklas Söderlund <niklas.soderlund@ragnatech.se>
* Kieran Bingham <kieran.bingham@ideasonboard.com>
*
* The ADV748x range of receivers have the following configurations:
*
* Analog HDMI MHL 4-Lane 1-Lane
* In In CSI CSI
* ADV7480 X X X
* ADV7481 X X X X X
* ADV7482 X X X X
*/
#include <linux/i2c.h>
#ifndef _ADV748X_H_
#define _ADV748X_H_
enum adv748x_page {
ADV748X_PAGE_IO,
ADV748X_PAGE_DPLL,
ADV748X_PAGE_CP,
ADV748X_PAGE_HDMI,
ADV748X_PAGE_EDID,
ADV748X_PAGE_REPEATER,
ADV748X_PAGE_INFOFRAME,
ADV748X_PAGE_CBUS,
ADV748X_PAGE_CEC,
ADV748X_PAGE_SDP,
ADV748X_PAGE_TXB,
ADV748X_PAGE_TXA,
ADV748X_PAGE_MAX,
/* Fake pages for register sequences */
ADV748X_PAGE_WAIT, /* Wait x msec */
ADV748X_PAGE_EOR, /* End Mark */
};
/**
* enum adv748x_ports - Device tree port number definitions
*
* The ADV748X ports define the mapping between subdevices
* and the device tree specification
*/
enum adv748x_ports {
ADV748X_PORT_AIN0 = 0,
ADV748X_PORT_AIN1 = 1,
ADV748X_PORT_AIN2 = 2,
ADV748X_PORT_AIN3 = 3,
ADV748X_PORT_AIN4 = 4,
ADV748X_PORT_AIN5 = 5,
ADV748X_PORT_AIN6 = 6,
ADV748X_PORT_AIN7 = 7,
ADV748X_PORT_HDMI = 8,
ADV748X_PORT_TTL = 9,
ADV748X_PORT_TXA = 10,
ADV748X_PORT_TXB = 11,
ADV748X_PORT_MAX = 12,
};
enum adv748x_csi2_pads {
ADV748X_CSI2_SINK,
ADV748X_CSI2_SOURCE,
ADV748X_CSI2_NR_PADS,
};
/* CSI2 transmitters can have 2 internal connections, HDMI/AFE */
#define ADV748X_CSI2_MAX_SUBDEVS 2
struct adv748x_csi2 {
struct adv748x_state *state;
struct v4l2_mbus_framefmt format;
unsigned int page;
struct media_pad pads[ADV748X_CSI2_NR_PADS];
struct v4l2_ctrl_handler ctrl_hdl;
struct v4l2_ctrl *pixel_rate;
struct v4l2_subdev sd;
};
#define notifier_to_csi2(n) container_of(n, struct adv748x_csi2, notifier)
#define adv748x_sd_to_csi2(sd) container_of(sd, struct adv748x_csi2, sd)
enum adv748x_hdmi_pads {
ADV748X_HDMI_SINK,
ADV748X_HDMI_SOURCE,
ADV748X_HDMI_NR_PADS,
};
struct adv748x_hdmi {
struct media_pad pads[ADV748X_HDMI_NR_PADS];
struct v4l2_ctrl_handler ctrl_hdl;
struct v4l2_subdev sd;
struct v4l2_mbus_framefmt format;
struct v4l2_dv_timings timings;
struct v4l2_fract aspect_ratio;
struct {
u8 edid[512];
u32 present;
unsigned int blocks;
} edid;
};
#define adv748x_ctrl_to_hdmi(ctrl) \
container_of(ctrl->handler, struct adv748x_hdmi, ctrl_hdl)
#define adv748x_sd_to_hdmi(sd) container_of(sd, struct adv748x_hdmi, sd)
enum adv748x_afe_pads {
ADV748X_AFE_SINK_AIN0,
ADV748X_AFE_SINK_AIN1,
ADV748X_AFE_SINK_AIN2,
ADV748X_AFE_SINK_AIN3,
ADV748X_AFE_SINK_AIN4,
ADV748X_AFE_SINK_AIN5,
ADV748X_AFE_SINK_AIN6,
ADV748X_AFE_SINK_AIN7,
ADV748X_AFE_SOURCE,
ADV748X_AFE_NR_PADS,
};
struct adv748x_afe {
struct media_pad pads[ADV748X_AFE_NR_PADS];
struct v4l2_ctrl_handler ctrl_hdl;
struct v4l2_subdev sd;
struct v4l2_mbus_framefmt format;
bool streaming;
v4l2_std_id curr_norm;
unsigned int input;
};
#define adv748x_ctrl_to_afe(ctrl) \
container_of(ctrl->handler, struct adv748x_afe, ctrl_hdl)
#define adv748x_sd_to_afe(sd) container_of(sd, struct adv748x_afe, sd)
/**
* struct adv748x_state - State of ADV748X
* @dev: (OF) device
* @client: I2C client
* @mutex: protect global state
*
* @endpoints: parsed device node endpoints for each port
*
* @i2c_addresses I2C Page addresses
* @i2c_clients I2C clients for the page accesses
* @regmap regmap configuration pages.
*
* @hdmi: state of HDMI receiver context
* @afe: state of AFE receiver context
* @txa: state of TXA transmitter context
* @txb: state of TXB transmitter context
*/
struct adv748x_state {
struct device *dev;
struct i2c_client *client;
struct mutex mutex;
struct device_node *endpoints[ADV748X_PORT_MAX];
struct i2c_client *i2c_clients[ADV748X_PAGE_MAX];
struct regmap *regmap[ADV748X_PAGE_MAX];
struct adv748x_hdmi hdmi;
struct adv748x_afe afe;
struct adv748x_csi2 txa;
struct adv748x_csi2 txb;
};
#define adv748x_hdmi_to_state(h) container_of(h, struct adv748x_state, hdmi)
#define adv748x_afe_to_state(a) container_of(a, struct adv748x_state, afe)
#define adv_err(a, fmt, arg...) dev_err(a->dev, fmt, ##arg)
#define adv_info(a, fmt, arg...) dev_info(a->dev, fmt, ##arg)
#define adv_dbg(a, fmt, arg...) dev_dbg(a->dev, fmt, ##arg)
/* Register Mappings */
/* IO Map */
#define ADV748X_IO_PD 0x00 /* power down controls */
#define ADV748X_IO_PD_RX_EN BIT(6)
#define ADV748X_IO_REG_04 0x04
#define ADV748X_IO_REG_04_FORCE_FR BIT(0) /* Force CP free-run */
#define ADV748X_IO_DATAPATH 0x03 /* datapath cntrl */
#define ADV748X_IO_DATAPATH_VFREQ_M 0x70
#define ADV748X_IO_DATAPATH_VFREQ_SHIFT 4
#define ADV748X_IO_VID_STD 0x05
#define ADV748X_IO_10 0x10 /* io_reg_10 */
#define ADV748X_IO_10_CSI4_EN BIT(7)
#define ADV748X_IO_10_CSI1_EN BIT(6)
#define ADV748X_IO_10_PIX_OUT_EN BIT(5)
#define ADV748X_IO_CHIP_REV_ID_1 0xdf
#define ADV748X_IO_CHIP_REV_ID_2 0xe0
#define ADV748X_IO_SLAVE_ADDR_BASE 0xf2
/* HDMI RX Map */
#define ADV748X_HDMI_LW1 0x07 /* line width_1 */
#define ADV748X_HDMI_LW1_VERT_FILTER BIT(7)
#define ADV748X_HDMI_LW1_DE_REGEN BIT(5)
#define ADV748X_HDMI_LW1_WIDTH_MASK 0x1fff
#define ADV748X_HDMI_F0H1 0x09 /* field0 height_1 */
#define ADV748X_HDMI_F0H1_HEIGHT_MASK 0x1fff
#define ADV748X_HDMI_F1H1 0x0b /* field1 height_1 */
#define ADV748X_HDMI_F1H1_INTERLACED BIT(5)
#define ADV748X_HDMI_HFRONT_PORCH 0x20 /* hsync_front_porch_1 */
#define ADV748X_HDMI_HFRONT_PORCH_MASK 0x1fff
#define ADV748X_HDMI_HSYNC_WIDTH 0x22 /* hsync_pulse_width_1 */
#define ADV748X_HDMI_HSYNC_WIDTH_MASK 0x1fff
#define ADV748X_HDMI_HBACK_PORCH 0x24 /* hsync_back_porch_1 */
#define ADV748X_HDMI_HBACK_PORCH_MASK 0x1fff
#define ADV748X_HDMI_VFRONT_PORCH 0x2a /* field0_vs_front_porch_1 */
#define ADV748X_HDMI_VFRONT_PORCH_MASK 0x3fff
#define ADV748X_HDMI_VSYNC_WIDTH 0x2e /* field0_vs_pulse_width_1 */
#define ADV748X_HDMI_VSYNC_WIDTH_MASK 0x3fff
#define ADV748X_HDMI_VBACK_PORCH 0x32 /* field0_vs_back_porch_1 */
#define ADV748X_HDMI_VBACK_PORCH_MASK 0x3fff
#define ADV748X_HDMI_TMDS_1 0x51 /* hdmi_reg_51 */
#define ADV748X_HDMI_TMDS_2 0x52 /* hdmi_reg_52 */
/* HDMI RX Repeater Map */
#define ADV748X_REPEATER_EDID_SZ 0x70 /* primary_edid_size */
#define ADV748X_REPEATER_EDID_SZ_SHIFT 4
#define ADV748X_REPEATER_EDID_CTL 0x74 /* hdcp edid controls */
#define ADV748X_REPEATER_EDID_CTL_EN BIT(0) /* man_edid_a_enable */
/* SDP Main Map */
#define ADV748X_SDP_INSEL 0x00 /* user_map_rw_reg_00 */
#define ADV748X_SDP_VID_SEL 0x02 /* user_map_rw_reg_02 */
#define ADV748X_SDP_VID_SEL_MASK 0xf0
#define ADV748X_SDP_VID_SEL_SHIFT 4
/* Contrast - Unsigned*/
#define ADV748X_SDP_CON 0x08 /* user_map_rw_reg_08 */
#define ADV748X_SDP_CON_MIN 0
#define ADV748X_SDP_CON_DEF 128
#define ADV748X_SDP_CON_MAX 255
/* Brightness - Signed */
#define ADV748X_SDP_BRI 0x0a /* user_map_rw_reg_0a */
#define ADV748X_SDP_BRI_MIN -128
#define ADV748X_SDP_BRI_DEF 0
#define ADV748X_SDP_BRI_MAX 127
/* Hue - Signed, inverted*/
#define ADV748X_SDP_HUE 0x0b /* user_map_rw_reg_0b */
#define ADV748X_SDP_HUE_MIN -127
#define ADV748X_SDP_HUE_DEF 0
#define ADV748X_SDP_HUE_MAX 128
/* Test Patterns / Default Values */
#define ADV748X_SDP_DEF 0x0c /* user_map_rw_reg_0c */
#define ADV748X_SDP_DEF_VAL_EN BIT(0) /* Force free run mode */
#define ADV748X_SDP_DEF_VAL_AUTO_EN BIT(1) /* Free run when no signal */
#define ADV748X_SDP_MAP_SEL 0x0e /* user_map_rw_reg_0e */
#define ADV748X_SDP_MAP_SEL_RO_MAIN 1
/* Free run pattern select */
#define ADV748X_SDP_FRP 0x14
#define ADV748X_SDP_FRP_MASK GENMASK(3, 1)
/* Saturation */
#define ADV748X_SDP_SD_SAT_U 0xe3 /* user_map_rw_reg_e3 */
#define ADV748X_SDP_SD_SAT_V 0xe4 /* user_map_rw_reg_e4 */
#define ADV748X_SDP_SAT_MIN 0
#define ADV748X_SDP_SAT_DEF 128
#define ADV748X_SDP_SAT_MAX 255
/* SDP RO Main Map */
#define ADV748X_SDP_RO_10 0x10
#define ADV748X_SDP_RO_10_IN_LOCK BIT(0)
/* CP Map */
#define ADV748X_CP_PAT_GEN 0x37 /* int_pat_gen_1 */
#define ADV748X_CP_PAT_GEN_EN BIT(7)
/* Contrast Control - Unsigned */
#define ADV748X_CP_CON 0x3a /* contrast_cntrl */
#define ADV748X_CP_CON_MIN 0 /* Minimum contrast */
#define ADV748X_CP_CON_DEF 128 /* Default */
#define ADV748X_CP_CON_MAX 255 /* Maximum contrast */
/* Saturation Control - Unsigned */
#define ADV748X_CP_SAT 0x3b /* saturation_cntrl */
#define ADV748X_CP_SAT_MIN 0 /* Minimum saturation */
#define ADV748X_CP_SAT_DEF 128 /* Default */
#define ADV748X_CP_SAT_MAX 255 /* Maximum saturation */
/* Brightness Control - Signed */
#define ADV748X_CP_BRI 0x3c /* brightness_cntrl */
#define ADV748X_CP_BRI_MIN -128 /* Luma is -512d */
#define ADV748X_CP_BRI_DEF 0 /* Luma is 0 */
#define ADV748X_CP_BRI_MAX 127 /* Luma is 508d */
/* Hue Control */
#define ADV748X_CP_HUE 0x3d /* hue_cntrl */
#define ADV748X_CP_HUE_MIN 0 /* -90 degree */
#define ADV748X_CP_HUE_DEF 0 /* -90 degree */
#define ADV748X_CP_HUE_MAX 255 /* +90 degree */
#define ADV748X_CP_VID_ADJ 0x3e /* vid_adj_0 */
#define ADV748X_CP_VID_ADJ_ENABLE BIT(7) /* Enable colour controls */
#define ADV748X_CP_DE_POS_HIGH 0x8b /* de_pos_adj_6 */
#define ADV748X_CP_DE_POS_HIGH_SET BIT(6)
#define ADV748X_CP_DE_POS_END_LOW 0x8c /* de_pos_adj_7 */
#define ADV748X_CP_DE_POS_START_LOW 0x8d /* de_pos_adj_8 */
#define ADV748X_CP_VID_ADJ_2 0x91
#define ADV748X_CP_VID_ADJ_2_INTERLACED BIT(6)
#define ADV748X_CP_VID_ADJ_2_INTERLACED_3D BIT(4)
#define ADV748X_CP_CLMP_POS 0xc9 /* clmp_pos_cntrl_4 */
#define ADV748X_CP_CLMP_POS_DIS_AUTO BIT(0) /* dis_auto_param_buff */
/* CSI : TXA/TXB Maps */
#define ADV748X_CSI_VC_REF 0x0d /* csi_tx_top_reg_0d */
#define ADV748X_CSI_VC_REF_SHIFT 6
#define ADV748X_CSI_FS_AS_LS 0x1e /* csi_tx_top_reg_1e */
#define ADV748X_CSI_FS_AS_LS_UNKNOWN BIT(6) /* Undocumented bit */
/* Register handling */
int adv748x_read(struct adv748x_state *state, u8 addr, u8 reg);
int adv748x_write(struct adv748x_state *state, u8 page, u8 reg, u8 value);
int adv748x_write_block(struct adv748x_state *state, int client_page,
unsigned int init_reg, const void *val,
size_t val_len);
#define io_read(s, r) adv748x_read(s, ADV748X_PAGE_IO, r)
#define io_write(s, r, v) adv748x_write(s, ADV748X_PAGE_IO, r, v)
#define io_clrset(s, r, m, v) io_write(s, r, (io_read(s, r) & ~m) | v)
#define hdmi_read(s, r) adv748x_read(s, ADV748X_PAGE_HDMI, r)
#define hdmi_read16(s, r, m) (((hdmi_read(s, r) << 8) | hdmi_read(s, r+1)) & m)
#define hdmi_write(s, r, v) adv748x_write(s, ADV748X_PAGE_HDMI, r, v)
#define repeater_read(s, r) adv748x_read(s, ADV748X_PAGE_REPEATER, r)
#define repeater_write(s, r, v) adv748x_write(s, ADV748X_PAGE_REPEATER, r, v)
#define sdp_read(s, r) adv748x_read(s, ADV748X_PAGE_SDP, r)
#define sdp_write(s, r, v) adv748x_write(s, ADV748X_PAGE_SDP, r, v)
#define sdp_clrset(s, r, m, v) sdp_write(s, r, (sdp_read(s, r) & ~m) | v)
#define cp_read(s, r) adv748x_read(s, ADV748X_PAGE_CP, r)
#define cp_write(s, r, v) adv748x_write(s, ADV748X_PAGE_CP, r, v)
#define cp_clrset(s, r, m, v) cp_write(s, r, (cp_read(s, r) & ~m) | v)
#define txa_read(s, r) adv748x_read(s, ADV748X_PAGE_TXA, r)
#define txb_read(s, r) adv748x_read(s, ADV748X_PAGE_TXB, r)
#define tx_read(t, r) adv748x_read(t->state, t->page, r)
#define tx_write(t, r, v) adv748x_write(t->state, t->page, r, v)
static inline struct v4l2_subdev *adv748x_get_remote_sd(struct media_pad *pad)
{
pad = media_entity_remote_pad(pad);
if (!pad)
return NULL;
return media_entity_to_v4l2_subdev(pad->entity);
}
void adv748x_subdev_init(struct v4l2_subdev *sd, struct adv748x_state *state,
const struct v4l2_subdev_ops *ops, u32 function,
const char *ident);
int adv748x_register_subdevs(struct adv748x_state *state,
struct v4l2_device *v4l2_dev);
int adv748x_txa_power(struct adv748x_state *state, bool on);
int adv748x_txb_power(struct adv748x_state *state, bool on);
int adv748x_afe_init(struct adv748x_afe *afe);
void adv748x_afe_cleanup(struct adv748x_afe *afe);
int adv748x_csi2_init(struct adv748x_state *state, struct adv748x_csi2 *tx);
void adv748x_csi2_cleanup(struct adv748x_csi2 *tx);
int adv748x_csi2_set_pixelrate(struct v4l2_subdev *sd, s64 rate);
int adv748x_hdmi_init(struct adv748x_hdmi *hdmi);
void adv748x_hdmi_cleanup(struct adv748x_hdmi *hdmi);
#endif /* _ADV748X_H_ */
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