// SPDX-License-Identifier: GPL-2.0-only
/*
* adv7842 - Analog Devices ADV7842 video decoder driver
*
* Copyright 2013 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
*/
/*
* References (c = chapter, p = page):
* REF_01 - Analog devices, ADV7842,
* Register Settings Recommendations, Rev. 1.9, April 2011
* REF_02 - Analog devices, Software User Guide, UG-206,
* ADV7842 I2C Register Maps, Rev. 0, November 2010
* REF_03 - Analog devices, Hardware User Guide, UG-214,
* ADV7842 Fast Switching 2:1 HDMI 1.4 Receiver with 3D-Comb
* Decoder and Digitizer , Rev. 0, January 2011
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/delay.h>
#include <linux/videodev2.h>
#include <linux/workqueue.h>
#include <linux/v4l2-dv-timings.h>
#include <linux/hdmi.h>
#include <media/cec.h>
#include <media/v4l2-device.h>
#include <media/v4l2-event.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-dv-timings.h>
#include <media/i2c/adv7842.h>
static int debug;
module_param(debug, int , 0644 );
MODULE_PARM_DESC(debug, "debug level (0-2)" );
MODULE_DESCRIPTION("Analog Devices ADV7842 video decoder driver" );
MODULE_AUTHOR("Hans Verkuil <hansverk@cisco.com>" );
MODULE_AUTHOR("Martin Bugge <marbugge@cisco.com>" );
MODULE_LICENSE("GPL" );
/* ADV7842 system clock frequency */
#define ADV7842_fsc (28636360 )
#define ADV7842_RGB_OUT (1 << 1 )
#define ADV7842_OP_FORMAT_SEL_8BIT (0 << 0 )
#define ADV7842_OP_FORMAT_SEL_10BIT (1 << 0 )
#define ADV7842_OP_FORMAT_SEL_12BIT (2 << 0 )
#define ADV7842_OP_MODE_SEL_SDR_422 (0 << 5 )
#define ADV7842_OP_MODE_SEL_DDR_422 (1 << 5 )
#define ADV7842_OP_MODE_SEL_SDR_444 (2 << 5 )
#define ADV7842_OP_MODE_SEL_DDR_444 (3 << 5 )
#define ADV7842_OP_MODE_SEL_SDR_422_2X (4 << 5 )
#define ADV7842_OP_MODE_SEL_ADI_CM (5 << 5 )
#define ADV7842_OP_CH_SEL_GBR (0 << 5 )
#define ADV7842_OP_CH_SEL_GRB (1 << 5 )
#define ADV7842_OP_CH_SEL_BGR (2 << 5 )
#define ADV7842_OP_CH_SEL_RGB (3 << 5 )
#define ADV7842_OP_CH_SEL_BRG (4 << 5 )
#define ADV7842_OP_CH_SEL_RBG (5 << 5 )
#define ADV7842_OP_SWAP_CB_CR (1 << 0 )
#define ADV7842_MAX_ADDRS (3 )
/*
**********************************************************************
*
* Arrays with configuration parameters for the ADV7842
*
**********************************************************************
*/
struct adv7842_format_info {
u32 code;
u8 op_ch_sel;
bool rgb_out;
bool swap_cb_cr;
u8 op_format_sel;
};
struct adv7842_state {
struct adv7842_platform_data pdata;
struct v4l2_subdev sd;
struct media_pad pads[ADV7842_PAD_SOURCE + 1 ];
struct v4l2_ctrl_handler hdl;
enum adv7842_mode mode;
struct v4l2_dv_timings timings;
enum adv7842_vid_std_select vid_std_select;
const struct adv7842_format_info *format;
v4l2_std_id norm;
struct {
u8 edid[512 ];
u32 blocks;
u32 present;
} hdmi_edid;
struct {
u8 edid[128 ];
u32 blocks;
u32 present;
} vga_edid;
struct v4l2_fract aspect_ratio;
u32 rgb_quantization_range;
bool is_cea_format;
struct delayed_work delayed_work_enable_hotplug;
bool restart_stdi_once;
bool hdmi_port_a;
struct dentry *debugfs_dir;
struct v4l2_debugfs_if *infoframes;
/* i2c clients */
struct i2c_client *i2c_sdp_io;
struct i2c_client *i2c_sdp;
struct i2c_client *i2c_cp;
struct i2c_client *i2c_vdp;
struct i2c_client *i2c_afe;
struct i2c_client *i2c_hdmi;
struct i2c_client *i2c_repeater;
struct i2c_client *i2c_edid;
struct i2c_client *i2c_infoframe;
struct i2c_client *i2c_cec;
struct i2c_client *i2c_avlink;
/* controls */
struct v4l2_ctrl *detect_tx_5v_ctrl;
struct v4l2_ctrl *analog_sampling_phase_ctrl;
struct v4l2_ctrl *free_run_color_ctrl_manual;
struct v4l2_ctrl *free_run_color_ctrl;
struct v4l2_ctrl *rgb_quantization_range_ctrl;
struct cec_adapter *cec_adap;
u8 cec_addr[ADV7842_MAX_ADDRS];
u8 cec_valid_addrs;
bool cec_enabled_adap;
};
/* Unsupported timings. This device cannot support 720p30. */
static const struct v4l2_dv_timings adv7842_timings_exceptions[] = {
V4L2_DV_BT_CEA_1280X720P30,
{ }
};
static bool adv7842_check_dv_timings(const struct v4l2_dv_timings *t, void *hdl)
{
int i;
for (i = 0 ; adv7842_timings_exceptions[i].bt.width; i++)
if (v4l2_match_dv_timings(t, adv7842_timings_exceptions + i, 0 , false ))
return false ;
return true ;
}
struct adv7842_video_standards {
struct v4l2_dv_timings timings;
u8 vid_std;
u8 v_freq;
};
/* sorted by number of lines */
static const struct adv7842_video_standards adv7842_prim_mode_comp[] = {
/* { V4L2_DV_BT_CEA_720X480P59_94, 0x0a, 0x00 }, TODO flickering */
{ V4L2_DV_BT_CEA_720X576P50, 0 x0b, 0 x00 },
{ V4L2_DV_BT_CEA_1280X720P50, 0 x19, 0 x01 },
{ V4L2_DV_BT_CEA_1280X720P60, 0 x19, 0 x00 },
{ V4L2_DV_BT_CEA_1920X1080P24, 0 x1e, 0 x04 },
{ V4L2_DV_BT_CEA_1920X1080P25, 0 x1e, 0 x03 },
{ V4L2_DV_BT_CEA_1920X1080P30, 0 x1e, 0 x02 },
{ V4L2_DV_BT_CEA_1920X1080P50, 0 x1e, 0 x01 },
{ V4L2_DV_BT_CEA_1920X1080P60, 0 x1e, 0 x00 },
/* TODO add 1920x1080P60_RB (CVT timing) */
{ },
};
/* sorted by number of lines */
static const struct adv7842_video_standards adv7842_prim_mode_gr[] = {
{ V4L2_DV_BT_DMT_640X480P60, 0 x08, 0 x00 },
{ V4L2_DV_BT_DMT_640X480P72, 0 x09, 0 x00 },
{ V4L2_DV_BT_DMT_640X480P75, 0 x0a, 0 x00 },
{ V4L2_DV_BT_DMT_640X480P85, 0 x0b, 0 x00 },
{ V4L2_DV_BT_DMT_800X600P56, 0 x00, 0 x00 },
{ V4L2_DV_BT_DMT_800X600P60, 0 x01, 0 x00 },
{ V4L2_DV_BT_DMT_800X600P72, 0 x02, 0 x00 },
{ V4L2_DV_BT_DMT_800X600P75, 0 x03, 0 x00 },
{ V4L2_DV_BT_DMT_800X600P85, 0 x04, 0 x00 },
{ V4L2_DV_BT_DMT_1024X768P60, 0 x0c, 0 x00 },
{ V4L2_DV_BT_DMT_1024X768P70, 0 x0d, 0 x00 },
{ V4L2_DV_BT_DMT_1024X768P75, 0 x0e, 0 x00 },
{ V4L2_DV_BT_DMT_1024X768P85, 0 x0f, 0 x00 },
{ V4L2_DV_BT_DMT_1280X1024P60, 0 x05, 0 x00 },
{ V4L2_DV_BT_DMT_1280X1024P75, 0 x06, 0 x00 },
{ V4L2_DV_BT_DMT_1360X768P60, 0 x12, 0 x00 },
{ V4L2_DV_BT_DMT_1366X768P60, 0 x13, 0 x00 },
{ V4L2_DV_BT_DMT_1400X1050P60, 0 x14, 0 x00 },
{ V4L2_DV_BT_DMT_1400X1050P75, 0 x15, 0 x00 },
{ V4L2_DV_BT_DMT_1600X1200P60, 0 x16, 0 x00 }, /* TODO not tested */
/* TODO add 1600X1200P60_RB (not a DMT timing) */
{ V4L2_DV_BT_DMT_1680X1050P60, 0 x18, 0 x00 },
{ V4L2_DV_BT_DMT_1920X1200P60_RB, 0 x19, 0 x00 }, /* TODO not tested */
{ },
};
/* sorted by number of lines */
static const struct adv7842_video_standards adv7842_prim_mode_hdmi_comp[] = {
{ V4L2_DV_BT_CEA_720X480P59_94, 0 x0a, 0 x00 },
{ V4L2_DV_BT_CEA_720X576P50, 0 x0b, 0 x00 },
{ V4L2_DV_BT_CEA_1280X720P50, 0 x13, 0 x01 },
{ V4L2_DV_BT_CEA_1280X720P60, 0 x13, 0 x00 },
{ V4L2_DV_BT_CEA_1920X1080P24, 0 x1e, 0 x04 },
{ V4L2_DV_BT_CEA_1920X1080P25, 0 x1e, 0 x03 },
{ V4L2_DV_BT_CEA_1920X1080P30, 0 x1e, 0 x02 },
{ V4L2_DV_BT_CEA_1920X1080P50, 0 x1e, 0 x01 },
{ V4L2_DV_BT_CEA_1920X1080P60, 0 x1e, 0 x00 },
{ },
};
/* sorted by number of lines */
static const struct adv7842_video_standards adv7842_prim_mode_hdmi_gr[] = {
{ V4L2_DV_BT_DMT_640X480P60, 0 x08, 0 x00 },
{ V4L2_DV_BT_DMT_640X480P72, 0 x09, 0 x00 },
{ V4L2_DV_BT_DMT_640X480P75, 0 x0a, 0 x00 },
{ V4L2_DV_BT_DMT_640X480P85, 0 x0b, 0 x00 },
{ V4L2_DV_BT_DMT_800X600P56, 0 x00, 0 x00 },
{ V4L2_DV_BT_DMT_800X600P60, 0 x01, 0 x00 },
{ V4L2_DV_BT_DMT_800X600P72, 0 x02, 0 x00 },
{ V4L2_DV_BT_DMT_800X600P75, 0 x03, 0 x00 },
{ V4L2_DV_BT_DMT_800X600P85, 0 x04, 0 x00 },
{ V4L2_DV_BT_DMT_1024X768P60, 0 x0c, 0 x00 },
{ V4L2_DV_BT_DMT_1024X768P70, 0 x0d, 0 x00 },
{ V4L2_DV_BT_DMT_1024X768P75, 0 x0e, 0 x00 },
{ V4L2_DV_BT_DMT_1024X768P85, 0 x0f, 0 x00 },
{ V4L2_DV_BT_DMT_1280X1024P60, 0 x05, 0 x00 },
{ V4L2_DV_BT_DMT_1280X1024P75, 0 x06, 0 x00 },
{ },
};
static const struct v4l2_event adv7842_ev_fmt = {
.type = V4L2_EVENT_SOURCE_CHANGE,
.u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
};
/* ----------------------------------------------------------------------- */
static inline struct adv7842_state *to_state(struct v4l2_subdev *sd)
{
return container_of(sd, struct adv7842_state, sd);
}
static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
{
return &container_of(ctrl->handler, struct adv7842_state, hdl)->sd;
}
static inline unsigned htotal(const struct v4l2_bt_timings *t)
{
return V4L2_DV_BT_FRAME_WIDTH(t);
}
static inline unsigned vtotal(const struct v4l2_bt_timings *t)
{
return V4L2_DV_BT_FRAME_HEIGHT(t);
}
/* ----------------------------------------------------------------------- */
static s32 adv_smbus_read_byte_data_check(struct i2c_client *client,
u8 command, bool check)
{
union i2c_smbus_data data;
if (!i2c_smbus_xfer(client->adapter, client->addr, client->flags,
I2C_SMBUS_READ, command,
I2C_SMBUS_BYTE_DATA, &data))
return data.byte;
if (check)
v4l_err(client, "error reading %02x, %02x\n" ,
client->addr, command);
return -EIO;
}
static s32 adv_smbus_read_byte_data(struct i2c_client *client, u8 command)
{
int i;
for (i = 0 ; i < 3 ; i++) {
int ret = adv_smbus_read_byte_data_check(client, command, true );
if (ret >= 0 ) {
if (i)
v4l_err(client, "read ok after %d retries\n" , i);
return ret;
}
}
v4l_err(client, "read failed\n" );
return -EIO;
}
static s32 adv_smbus_write_byte_data(struct i2c_client *client,
u8 command, u8 value)
{
union i2c_smbus_data data;
int err;
int i;
data.byte = value;
for (i = 0 ; i < 3 ; i++) {
err = i2c_smbus_xfer(client->adapter, client->addr,
client->flags,
I2C_SMBUS_WRITE, command,
I2C_SMBUS_BYTE_DATA, &data);
if (!err)
break ;
}
if (err < 0 )
v4l_err(client, "error writing %02x, %02x, %02x\n" ,
client->addr, command, value);
return err;
}
static void adv_smbus_write_byte_no_check(struct i2c_client *client,
u8 command, u8 value)
{
union i2c_smbus_data data;
data.byte = value;
i2c_smbus_xfer(client->adapter, client->addr,
client->flags,
I2C_SMBUS_WRITE, command,
I2C_SMBUS_BYTE_DATA, &data);
}
/* ----------------------------------------------------------------------- */
static inline int io_read(struct v4l2_subdev *sd, u8 reg)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
return adv_smbus_read_byte_data(client, reg);
}
static inline int io_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
return adv_smbus_write_byte_data(client, reg, val);
}
static inline int io_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
{
return io_write(sd, reg, (io_read(sd, reg) & mask) | val);
}
static inline int io_write_clr_set(struct v4l2_subdev *sd,
u8 reg, u8 mask, u8 val)
{
return io_write(sd, reg, (io_read(sd, reg) & ~mask) | val);
}
static inline int avlink_read(struct v4l2_subdev *sd, u8 reg)
{
struct adv7842_state *state = to_state(sd);
return adv_smbus_read_byte_data(state->i2c_avlink, reg);
}
static inline int avlink_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7842_state *state = to_state(sd);
return adv_smbus_write_byte_data(state->i2c_avlink, reg, val);
}
static inline int cec_read(struct v4l2_subdev *sd, u8 reg)
{
struct adv7842_state *state = to_state(sd);
return adv_smbus_read_byte_data(state->i2c_cec, reg);
}
static inline int cec_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7842_state *state = to_state(sd);
return adv_smbus_write_byte_data(state->i2c_cec, reg, val);
}
static inline int cec_write_clr_set(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
{
return cec_write(sd, reg, (cec_read(sd, reg) & ~mask) | val);
}
static inline int infoframe_read(struct v4l2_subdev *sd, u8 reg)
{
struct adv7842_state *state = to_state(sd);
return adv_smbus_read_byte_data(state->i2c_infoframe, reg);
}
static inline int infoframe_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7842_state *state = to_state(sd);
return adv_smbus_write_byte_data(state->i2c_infoframe, reg, val);
}
static inline int sdp_io_read(struct v4l2_subdev *sd, u8 reg)
{
struct adv7842_state *state = to_state(sd);
return adv_smbus_read_byte_data(state->i2c_sdp_io, reg);
}
static inline int sdp_io_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7842_state *state = to_state(sd);
return adv_smbus_write_byte_data(state->i2c_sdp_io, reg, val);
}
static inline int sdp_io_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
{
return sdp_io_write(sd, reg, (sdp_io_read(sd, reg) & mask) | val);
}
static inline int sdp_read(struct v4l2_subdev *sd, u8 reg)
{
struct adv7842_state *state = to_state(sd);
return adv_smbus_read_byte_data(state->i2c_sdp, reg);
}
static inline int sdp_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7842_state *state = to_state(sd);
return adv_smbus_write_byte_data(state->i2c_sdp, reg, val);
}
static inline int sdp_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
{
return sdp_write(sd, reg, (sdp_read(sd, reg) & mask) | val);
}
static inline int afe_read(struct v4l2_subdev *sd, u8 reg)
{
struct adv7842_state *state = to_state(sd);
return adv_smbus_read_byte_data(state->i2c_afe, reg);
}
static inline int afe_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7842_state *state = to_state(sd);
return adv_smbus_write_byte_data(state->i2c_afe, reg, val);
}
static inline int afe_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
{
return afe_write(sd, reg, (afe_read(sd, reg) & mask) | val);
}
static inline int rep_read(struct v4l2_subdev *sd, u8 reg)
{
struct adv7842_state *state = to_state(sd);
return adv_smbus_read_byte_data(state->i2c_repeater, reg);
}
static inline int rep_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7842_state *state = to_state(sd);
return adv_smbus_write_byte_data(state->i2c_repeater, reg, val);
}
static inline int rep_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
{
return rep_write(sd, reg, (rep_read(sd, reg) & mask) | val);
}
static inline int edid_read(struct v4l2_subdev *sd, u8 reg)
{
struct adv7842_state *state = to_state(sd);
return adv_smbus_read_byte_data(state->i2c_edid, reg);
}
static inline int edid_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7842_state *state = to_state(sd);
return adv_smbus_write_byte_data(state->i2c_edid, reg, val);
}
static inline int hdmi_read(struct v4l2_subdev *sd, u8 reg)
{
struct adv7842_state *state = to_state(sd);
return adv_smbus_read_byte_data(state->i2c_hdmi, reg);
}
static inline int hdmi_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7842_state *state = to_state(sd);
return adv_smbus_write_byte_data(state->i2c_hdmi, reg, val);
}
static inline int hdmi_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
{
return hdmi_write(sd, reg, (hdmi_read(sd, reg) & mask) | val);
}
static inline int cp_read(struct v4l2_subdev *sd, u8 reg)
{
struct adv7842_state *state = to_state(sd);
return adv_smbus_read_byte_data(state->i2c_cp, reg);
}
static inline int cp_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7842_state *state = to_state(sd);
return adv_smbus_write_byte_data(state->i2c_cp, reg, val);
}
static inline int cp_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
{
return cp_write(sd, reg, (cp_read(sd, reg) & mask) | val);
}
static inline int vdp_read(struct v4l2_subdev *sd, u8 reg)
{
struct adv7842_state *state = to_state(sd);
return adv_smbus_read_byte_data(state->i2c_vdp, reg);
}
static inline int vdp_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7842_state *state = to_state(sd);
return adv_smbus_write_byte_data(state->i2c_vdp, reg, val);
}
static void main_reset(struct v4l2_subdev *sd)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
v4l2_dbg(1 , debug, sd, "%s:\n" , __func__);
adv_smbus_write_byte_no_check(client, 0 xff, 0 x80);
mdelay(5 );
}
/* -----------------------------------------------------------------------------
* Format helpers
*/
static const struct adv7842_format_info adv7842_formats[] = {
{ MEDIA_BUS_FMT_RGB888_1X24, ADV7842_OP_CH_SEL_RGB, true , false ,
ADV7842_OP_MODE_SEL_SDR_444 | ADV7842_OP_FORMAT_SEL_8BIT },
{ MEDIA_BUS_FMT_YUYV8_2X8, ADV7842_OP_CH_SEL_RGB, false , false ,
ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_8BIT },
{ MEDIA_BUS_FMT_YVYU8_2X8, ADV7842_OP_CH_SEL_RGB, false , true ,
ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_8BIT },
{ MEDIA_BUS_FMT_YUYV10_2X10, ADV7842_OP_CH_SEL_RGB, false , false ,
ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_10BIT },
{ MEDIA_BUS_FMT_YVYU10_2X10, ADV7842_OP_CH_SEL_RGB, false , true ,
ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_10BIT },
{ MEDIA_BUS_FMT_YUYV12_2X12, ADV7842_OP_CH_SEL_RGB, false , false ,
ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_12BIT },
{ MEDIA_BUS_FMT_YVYU12_2X12, ADV7842_OP_CH_SEL_RGB, false , true ,
ADV7842_OP_MODE_SEL_SDR_422 | ADV7842_OP_FORMAT_SEL_12BIT },
{ MEDIA_BUS_FMT_UYVY8_1X16, ADV7842_OP_CH_SEL_RBG, false , false ,
ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_8BIT },
{ MEDIA_BUS_FMT_VYUY8_1X16, ADV7842_OP_CH_SEL_RBG, false , true ,
ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_8BIT },
{ MEDIA_BUS_FMT_YUYV8_1X16, ADV7842_OP_CH_SEL_RGB, false , false ,
ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_8BIT },
{ MEDIA_BUS_FMT_YVYU8_1X16, ADV7842_OP_CH_SEL_RGB, false , true ,
ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_8BIT },
{ MEDIA_BUS_FMT_UYVY10_1X20, ADV7842_OP_CH_SEL_RBG, false , false ,
ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_10BIT },
{ MEDIA_BUS_FMT_VYUY10_1X20, ADV7842_OP_CH_SEL_RBG, false , true ,
ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_10BIT },
{ MEDIA_BUS_FMT_YUYV10_1X20, ADV7842_OP_CH_SEL_RGB, false , false ,
ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_10BIT },
{ MEDIA_BUS_FMT_YVYU10_1X20, ADV7842_OP_CH_SEL_RGB, false , true ,
ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_10BIT },
{ MEDIA_BUS_FMT_UYVY12_1X24, ADV7842_OP_CH_SEL_RBG, false , false ,
ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_12BIT },
{ MEDIA_BUS_FMT_VYUY12_1X24, ADV7842_OP_CH_SEL_RBG, false , true ,
ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_12BIT },
{ MEDIA_BUS_FMT_YUYV12_1X24, ADV7842_OP_CH_SEL_RGB, false , false ,
ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_12BIT },
{ MEDIA_BUS_FMT_YVYU12_1X24, ADV7842_OP_CH_SEL_RGB, false , true ,
ADV7842_OP_MODE_SEL_SDR_422_2X | ADV7842_OP_FORMAT_SEL_12BIT },
};
static const struct adv7842_format_info *
adv7842_format_info(struct adv7842_state *state, u32 code)
{
unsigned int i;
for (i = 0 ; i < ARRAY_SIZE(adv7842_formats); ++i) {
if (adv7842_formats[i].code == code)
return &adv7842_formats[i];
}
return NULL;
}
/* ----------------------------------------------------------------------- */
static inline bool is_analog_input(struct v4l2_subdev *sd)
{
struct adv7842_state *state = to_state(sd);
return ((state->mode == ADV7842_MODE_RGB) ||
(state->mode == ADV7842_MODE_COMP));
}
static inline bool is_digital_input(struct v4l2_subdev *sd)
{
struct adv7842_state *state = to_state(sd);
return state->mode == ADV7842_MODE_HDMI;
}
static const struct v4l2_dv_timings_cap adv7842_timings_cap_analog = {
.type = V4L2_DV_BT_656_1120,
/* keep this initialization for compatibility with GCC < 4.4.6 */
.reserved = { 0 },
V4L2_INIT_BT_TIMINGS(640 , 1920 , 350 , 1200 , 25000000 , 170000000 ,
V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT,
V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_REDUCED_BLANKING |
V4L2_DV_BT_CAP_CUSTOM)
};
static const struct v4l2_dv_timings_cap adv7842_timings_cap_digital = {
.type = V4L2_DV_BT_656_1120,
/* keep this initialization for compatibility with GCC < 4.4.6 */
.reserved = { 0 },
V4L2_INIT_BT_TIMINGS(640 , 1920 , 350 , 1200 , 25000000 , 225000000 ,
V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT,
V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_REDUCED_BLANKING |
V4L2_DV_BT_CAP_CUSTOM)
};
static inline const struct v4l2_dv_timings_cap *
adv7842_get_dv_timings_cap(struct v4l2_subdev *sd)
{
return is_digital_input(sd) ? &adv7842_timings_cap_digital :
&adv7842_timings_cap_analog;
}
/* ----------------------------------------------------------------------- */
static u16 adv7842_read_cable_det(struct v4l2_subdev *sd)
{
u8 reg = io_read(sd, 0 x6f);
u16 val = 0 ;
if (reg & 0 x02)
val |= 1 ; /* port A */
if (reg & 0 x01)
val |= 2 ; /* port B */
return val;
}
static void adv7842_delayed_work_enable_hotplug(struct work_struct *work)
{
struct delayed_work *dwork = to_delayed_work(work);
struct adv7842_state *state = container_of(dwork,
struct adv7842_state, delayed_work_enable_hotplug);
struct v4l2_subdev *sd = &state->sd;
int present = state->hdmi_edid.present;
u8 mask = 0 ;
v4l2_dbg(2 , debug, sd, "%s: enable hotplug on ports: 0x%x\n" ,
__func__, present);
if (present & (0 x04 << ADV7842_EDID_PORT_A))
mask |= 0 x20;
if (present & (0 x04 << ADV7842_EDID_PORT_B))
mask |= 0 x10;
io_write_and_or(sd, 0 x20, 0 xcf, mask);
}
static int edid_write_vga_segment(struct v4l2_subdev *sd)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct adv7842_state *state = to_state(sd);
const u8 *edid = state->vga_edid.edid;
u32 blocks = state->vga_edid.blocks;
int err = 0 ;
int i;
v4l2_dbg(2 , debug, sd, "%s: write EDID on VGA port\n" , __func__);
if (!state->vga_edid.present)
return 0 ;
/* HPA disable on port A and B */
io_write_and_or(sd, 0 x20, 0 xcf, 0 x00);
/* Disable I2C access to internal EDID ram from VGA DDC port */
rep_write_and_or(sd, 0 x7f, 0 x7f, 0 x00);
/* edid segment pointer '1' for VGA port */
rep_write_and_or(sd, 0 x77, 0 xef, 0 x10);
for (i = 0 ; !err && i < blocks * 128 ; i += I2C_SMBUS_BLOCK_MAX)
err = i2c_smbus_write_i2c_block_data(state->i2c_edid, i,
I2C_SMBUS_BLOCK_MAX,
edid + i);
if (err)
return err;
/* Calculates the checksums and enables I2C access
* to internal EDID ram from VGA DDC port.
*/
rep_write_and_or(sd, 0 x7f, 0 x7f, 0 x80);
for (i = 0 ; i < 1000 ; i++) {
if (rep_read(sd, 0 x79) & 0 x20)
break ;
mdelay(1 );
}
if (i == 1000 ) {
v4l_err(client, "error enabling edid on VGA port\n" );
return -EIO;
}
/* enable hotplug after 200 ms */
schedule_delayed_work(&state->delayed_work_enable_hotplug, HZ / 5 );
return 0 ;
}
static int edid_write_hdmi_segment(struct v4l2_subdev *sd, u8 port)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct adv7842_state *state = to_state(sd);
const u8 *edid = state->hdmi_edid.edid;
u32 blocks = state->hdmi_edid.blocks;
unsigned int spa_loc;
u16 pa, parent_pa;
int err = 0 ;
int i;
v4l2_dbg(2 , debug, sd, "%s: write EDID on port %c\n" ,
__func__, (port == ADV7842_EDID_PORT_A) ? 'A' : 'B' );
/* HPA disable on port A and B */
io_write_and_or(sd, 0 x20, 0 xcf, 0 x00);
/* Disable I2C access to internal EDID ram from HDMI DDC ports */
rep_write_and_or(sd, 0 x77, 0 xf3, 0 x00);
if (!state->hdmi_edid.present) {
cec_phys_addr_invalidate(state->cec_adap);
return 0 ;
}
pa = v4l2_get_edid_phys_addr(edid, blocks * 128 , &spa_loc);
err = v4l2_phys_addr_validate(pa, &parent_pa, NULL);
if (err)
return err;
if (!spa_loc) {
/*
* There is no SPA, so just set spa_loc to 128 and pa to whatever
* data is there.
*/
spa_loc = 128 ;
pa = (edid[spa_loc] << 8 ) | edid[spa_loc + 1 ];
}
for (i = 0 ; !err && i < blocks * 128 ; i += I2C_SMBUS_BLOCK_MAX) {
/* set edid segment pointer for HDMI ports */
if (i % 256 == 0 )
rep_write_and_or(sd, 0 x77, 0 xef, i >= 256 ? 0 x10 : 0 x00);
err = i2c_smbus_write_i2c_block_data(state->i2c_edid, i,
I2C_SMBUS_BLOCK_MAX, edid + i);
}
if (err)
return err;
if (port == ADV7842_EDID_PORT_A) {
rep_write(sd, 0 x72, pa >> 8 );
rep_write(sd, 0 x73, pa & 0 xff);
} else {
rep_write(sd, 0 x74, pa >> 8 );
rep_write(sd, 0 x75, pa & 0 xff);
}
rep_write(sd, 0 x76, spa_loc & 0 xff);
rep_write_and_or(sd, 0 x77, 0 xbf, (spa_loc >> 2 ) & 0 x40);
/* Calculates the checksums and enables I2C access to internal
* EDID ram from HDMI DDC ports
*/
rep_write_and_or(sd, 0 x77, 0 xf3, state->hdmi_edid.present);
for (i = 0 ; i < 1000 ; i++) {
if (rep_read(sd, 0 x7d) & state->hdmi_edid.present)
break ;
mdelay(1 );
}
if (i == 1000 ) {
v4l_err(client, "error enabling edid on port %c\n" ,
(port == ADV7842_EDID_PORT_A) ? 'A' : 'B' );
return -EIO;
}
cec_s_phys_addr(state->cec_adap, parent_pa, false );
/* enable hotplug after 200 ms */
schedule_delayed_work(&state->delayed_work_enable_hotplug, HZ / 5 );
return 0 ;
}
/* ----------------------------------------------------------------------- */
#ifdef CONFIG_VIDEO_ADV_DEBUG
static void adv7842_inv_register(struct v4l2_subdev *sd)
{
v4l2_info(sd, "0x000-0x0ff: IO Map\n" );
v4l2_info(sd, "0x100-0x1ff: AVLink Map\n" );
v4l2_info(sd, "0x200-0x2ff: CEC Map\n" );
v4l2_info(sd, "0x300-0x3ff: InfoFrame Map\n" );
v4l2_info(sd, "0x400-0x4ff: SDP_IO Map\n" );
v4l2_info(sd, "0x500-0x5ff: SDP Map\n" );
v4l2_info(sd, "0x600-0x6ff: AFE Map\n" );
v4l2_info(sd, "0x700-0x7ff: Repeater Map\n" );
v4l2_info(sd, "0x800-0x8ff: EDID Map\n" );
v4l2_info(sd, "0x900-0x9ff: HDMI Map\n" );
v4l2_info(sd, "0xa00-0xaff: CP Map\n" );
v4l2_info(sd, "0xb00-0xbff: VDP Map\n" );
}
static int adv7842_g_register(struct v4l2_subdev *sd,
struct v4l2_dbg_register *reg)
{
reg->size = 1 ;
switch (reg->reg >> 8 ) {
case 0 :
reg->val = io_read(sd, reg->reg & 0 xff);
break ;
case 1 :
reg->val = avlink_read(sd, reg->reg & 0 xff);
break ;
case 2 :
reg->val = cec_read(sd, reg->reg & 0 xff);
break ;
case 3 :
reg->val = infoframe_read(sd, reg->reg & 0 xff);
break ;
case 4 :
reg->val = sdp_io_read(sd, reg->reg & 0 xff);
break ;
case 5 :
reg->val = sdp_read(sd, reg->reg & 0 xff);
break ;
case 6 :
reg->val = afe_read(sd, reg->reg & 0 xff);
break ;
case 7 :
reg->val = rep_read(sd, reg->reg & 0 xff);
break ;
case 8 :
reg->val = edid_read(sd, reg->reg & 0 xff);
break ;
case 9 :
reg->val = hdmi_read(sd, reg->reg & 0 xff);
break ;
case 0 xa:
reg->val = cp_read(sd, reg->reg & 0 xff);
break ;
case 0 xb:
reg->val = vdp_read(sd, reg->reg & 0 xff);
break ;
default :
v4l2_info(sd, "Register %03llx not supported\n" , reg->reg);
adv7842_inv_register(sd);
break ;
}
return 0 ;
}
static int adv7842_s_register(struct v4l2_subdev *sd,
const struct v4l2_dbg_register *reg)
{
u8 val = reg->val & 0 xff;
switch (reg->reg >> 8 ) {
case 0 :
io_write(sd, reg->reg & 0 xff, val);
break ;
case 1 :
avlink_write(sd, reg->reg & 0 xff, val);
break ;
case 2 :
cec_write(sd, reg->reg & 0 xff, val);
break ;
case 3 :
infoframe_write(sd, reg->reg & 0 xff, val);
break ;
case 4 :
sdp_io_write(sd, reg->reg & 0 xff, val);
break ;
case 5 :
sdp_write(sd, reg->reg & 0 xff, val);
break ;
case 6 :
afe_write(sd, reg->reg & 0 xff, val);
break ;
case 7 :
rep_write(sd, reg->reg & 0 xff, val);
break ;
case 8 :
edid_write(sd, reg->reg & 0 xff, val);
break ;
case 9 :
hdmi_write(sd, reg->reg & 0 xff, val);
break ;
case 0 xa:
cp_write(sd, reg->reg & 0 xff, val);
break ;
case 0 xb:
vdp_write(sd, reg->reg & 0 xff, val);
break ;
default :
v4l2_info(sd, "Register %03llx not supported\n" , reg->reg);
adv7842_inv_register(sd);
break ;
}
return 0 ;
}
#endif
static int adv7842_s_detect_tx_5v_ctrl(struct v4l2_subdev *sd)
{
struct adv7842_state *state = to_state(sd);
u16 cable_det = adv7842_read_cable_det(sd);
v4l2_dbg(1 , debug, sd, "%s: 0x%x\n" , __func__, cable_det);
return v4l2_ctrl_s_ctrl(state->detect_tx_5v_ctrl, cable_det);
}
static int find_and_set_predefined_video_timings(struct v4l2_subdev *sd,
u8 prim_mode,
const struct adv7842_video_standards *predef_vid_timings,
const struct v4l2_dv_timings *timings)
{
int i;
for (i = 0 ; predef_vid_timings[i].timings.bt.width; i++) {
if (!v4l2_match_dv_timings(timings, &predef_vid_timings[i].timings,
is_digital_input(sd) ? 250000 : 1000000 , false ))
continue ;
/* video std */
io_write(sd, 0 x00, predef_vid_timings[i].vid_std);
/* v_freq and prim mode */
io_write(sd, 0 x01, (predef_vid_timings[i].v_freq << 4 ) + prim_mode);
return 0 ;
}
return -1 ;
}
static int configure_predefined_video_timings(struct v4l2_subdev *sd,
struct v4l2_dv_timings *timings)
{
struct adv7842_state *state = to_state(sd);
int err;
v4l2_dbg(1 , debug, sd, "%s\n" , __func__);
/* reset to default values */
io_write(sd, 0 x16, 0 x43);
io_write(sd, 0 x17, 0 x5a);
/* disable embedded syncs for auto graphics mode */
cp_write_and_or(sd, 0 x81, 0 xef, 0 x00);
cp_write(sd, 0 x26, 0 x00);
cp_write(sd, 0 x27, 0 x00);
cp_write(sd, 0 x28, 0 x00);
cp_write(sd, 0 x29, 0 x00);
cp_write(sd, 0 x8f, 0 x40);
cp_write(sd, 0 x90, 0 x00);
cp_write(sd, 0 xa5, 0 x00);
cp_write(sd, 0 xa6, 0 x00);
cp_write(sd, 0 xa7, 0 x00);
cp_write(sd, 0 xab, 0 x00);
cp_write(sd, 0 xac, 0 x00);
switch (state->mode) {
case ADV7842_MODE_COMP:
case ADV7842_MODE_RGB:
err = find_and_set_predefined_video_timings(sd,
0 x01, adv7842_prim_mode_comp, timings);
if (err)
err = find_and_set_predefined_video_timings(sd,
0 x02, adv7842_prim_mode_gr, timings);
break ;
case ADV7842_MODE_HDMI:
err = find_and_set_predefined_video_timings(sd,
0 x05, adv7842_prim_mode_hdmi_comp, timings);
if (err)
err = find_and_set_predefined_video_timings(sd,
0 x06, adv7842_prim_mode_hdmi_gr, timings);
break ;
default :
v4l2_dbg(2 , debug, sd, "%s: Unknown mode %d\n" ,
__func__, state->mode);
err = -1 ;
break ;
}
return err;
}
static void configure_custom_video_timings(struct v4l2_subdev *sd,
const struct v4l2_bt_timings *bt)
{
struct adv7842_state *state = to_state(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
u32 width = htotal(bt);
u32 height = vtotal(bt);
u16 cp_start_sav = bt->hsync + bt->hbackporch - 4 ;
u16 cp_start_eav = width - bt->hfrontporch;
u16 cp_start_vbi = height - bt->vfrontporch + 1 ;
u16 cp_end_vbi = bt->vsync + bt->vbackporch + 1 ;
u16 ch1_fr_ll = (((u32)bt->pixelclock / 100 ) > 0 ) ?
((width * (ADV7842_fsc / 100 )) / ((u32)bt->pixelclock / 100 )) : 0 ;
const u8 pll[2 ] = {
0 xc0 | ((width >> 8 ) & 0 x1f),
width & 0 xff
};
v4l2_dbg(2 , debug, sd, "%s\n" , __func__);
switch (state->mode) {
case ADV7842_MODE_COMP:
case ADV7842_MODE_RGB:
/* auto graphics */
io_write(sd, 0 x00, 0 x07); /* video std */
io_write(sd, 0 x01, 0 x02); /* prim mode */
/* enable embedded syncs for auto graphics mode */
cp_write_and_or(sd, 0 x81, 0 xef, 0 x10);
/* Should only be set in auto-graphics mode [REF_02, p. 91-92] */
/* setup PLL_DIV_MAN_EN and PLL_DIV_RATIO */
/* IO-map reg. 0x16 and 0x17 should be written in sequence */
if (i2c_smbus_write_i2c_block_data(client, 0 x16, 2 , pll)) {
v4l2_err(sd, "writing to reg 0x16 and 0x17 failed\n" );
break ;
}
/* active video - horizontal timing */
cp_write(sd, 0 x26, (cp_start_sav >> 8 ) & 0 xf);
cp_write(sd, 0 x27, (cp_start_sav & 0 xff));
cp_write(sd, 0 x28, (cp_start_eav >> 8 ) & 0 xf);
cp_write(sd, 0 x29, (cp_start_eav & 0 xff));
/* active video - vertical timing */
cp_write(sd, 0 xa5, (cp_start_vbi >> 4 ) & 0 xff);
cp_write(sd, 0 xa6, ((cp_start_vbi & 0 xf) << 4 ) |
((cp_end_vbi >> 8 ) & 0 xf));
cp_write(sd, 0 xa7, cp_end_vbi & 0 xff);
break ;
case ADV7842_MODE_HDMI:
/* set default prim_mode/vid_std for HDMI
according to [REF_03, c. 4.2] */
io_write(sd, 0 x00, 0 x02); /* video std */
io_write(sd, 0 x01, 0 x06); /* prim mode */
break ;
default :
v4l2_dbg(2 , debug, sd, "%s: Unknown mode %d\n" ,
__func__, state->mode);
break ;
}
cp_write(sd, 0 x8f, (ch1_fr_ll >> 8 ) & 0 x7);
cp_write(sd, 0 x90, ch1_fr_ll & 0 xff);
cp_write(sd, 0 xab, (height >> 4 ) & 0 xff);
cp_write(sd, 0 xac, (height & 0 x0f) << 4 );
}
static void adv7842_set_offset(struct v4l2_subdev *sd, bool auto_offset, u16 offset_a, u16 offset_b, u16 offset_c)
{
struct adv7842_state *state = to_state(sd);
u8 offset_buf[4 ];
if (auto_offset) {
offset_a = 0 x3ff;
offset_b = 0 x3ff;
offset_c = 0 x3ff;
}
v4l2_dbg(2 , debug, sd, "%s: %s offset: a = 0x%x, b = 0x%x, c = 0x%x\n" ,
__func__, auto_offset ? "Auto" : "Manual" ,
offset_a, offset_b, offset_c);
offset_buf[0 ]= (cp_read(sd, 0 x77) & 0 xc0) | ((offset_a & 0 x3f0) >> 4 );
offset_buf[1 ] = ((offset_a & 0 x00f) << 4 ) | ((offset_b & 0 x3c0) >> 6 );
offset_buf[2 ] = ((offset_b & 0 x03f) << 2 ) | ((offset_c & 0 x300) >> 8 );
offset_buf[3 ] = offset_c & 0 x0ff;
/* Registers must be written in this order with no i2c access in between */
if (i2c_smbus_write_i2c_block_data(state->i2c_cp, 0 x77, 4 , offset_buf))
v4l2_err(sd, "%s: i2c error writing to CP reg 0x77, 0x78, 0x79, 0x7a\n" , __func__);
}
static void adv7842_set_gain(struct v4l2_subdev *sd, bool auto_gain, u16 gain_a, u16 gain_b, u16 gain_c)
{
struct adv7842_state *state = to_state(sd);
u8 gain_buf[4 ];
u8 gain_man = 1 ;
u8 agc_mode_man = 1 ;
if (auto_gain) {
gain_man = 0 ;
agc_mode_man = 0 ;
gain_a = 0 x100;
gain_b = 0 x100;
gain_c = 0 x100;
}
v4l2_dbg(2 , debug, sd, "%s: %s gain: a = 0x%x, b = 0x%x, c = 0x%x\n" ,
__func__, auto_gain ? "Auto" : "Manual" ,
gain_a, gain_b, gain_c);
gain_buf[0 ] = ((gain_man << 7 ) | (agc_mode_man << 6 ) | ((gain_a & 0 x3f0) >> 4 ));
gain_buf[1 ] = (((gain_a & 0 x00f) << 4 ) | ((gain_b & 0 x3c0) >> 6 ));
gain_buf[2 ] = (((gain_b & 0 x03f) << 2 ) | ((gain_c & 0 x300) >> 8 ));
gain_buf[3 ] = ((gain_c & 0 x0ff));
/* Registers must be written in this order with no i2c access in between */
if (i2c_smbus_write_i2c_block_data(state->i2c_cp, 0 x73, 4 , gain_buf))
v4l2_err(sd, "%s: i2c error writing to CP reg 0x73, 0x74, 0x75, 0x76\n" , __func__);
}
static void set_rgb_quantization_range(struct v4l2_subdev *sd)
{
struct adv7842_state *state = to_state(sd);
bool rgb_output = io_read(sd, 0 x02) & 0 x02;
bool hdmi_signal = hdmi_read(sd, 0 x05) & 0 x80;
u8 y = HDMI_COLORSPACE_RGB;
if (hdmi_signal && (io_read(sd, 0 x60) & 1 ))
y = infoframe_read(sd, 0 x01) >> 5 ;
v4l2_dbg(2 , debug, sd, "%s: RGB quantization range: %d, RGB out: %d, HDMI: %d\n" ,
__func__, state->rgb_quantization_range,
rgb_output, hdmi_signal);
adv7842_set_gain(sd, true , 0 x0, 0 x0, 0 x0);
adv7842_set_offset(sd, true , 0 x0, 0 x0, 0 x0);
io_write_clr_set(sd, 0 x02, 0 x04, rgb_output ? 0 : 4 );
switch (state->rgb_quantization_range) {
case V4L2_DV_RGB_RANGE_AUTO:
if (state->mode == ADV7842_MODE_RGB) {
/* Receiving analog RGB signal
* Set RGB full range (0-255) */
io_write_and_or(sd, 0 x02, 0 x0f, 0 x10);
break ;
}
if (state->mode == ADV7842_MODE_COMP) {
/* Receiving analog YPbPr signal
* Set automode */
io_write_and_or(sd, 0 x02, 0 x0f, 0 xf0);
break ;
}
if (hdmi_signal) {
/* Receiving HDMI signal
* Set automode */
io_write_and_or(sd, 0 x02, 0 x0f, 0 xf0);
break ;
}
/* Receiving DVI-D signal
* ADV7842 selects RGB limited range regardless of
* input format (CE/IT) in automatic mode */
if (state->timings.bt.flags & V4L2_DV_FL_IS_CE_VIDEO) {
/* RGB limited range (16-235) */
io_write_and_or(sd, 0 x02, 0 x0f, 0 x00);
} else {
/* RGB full range (0-255) */
io_write_and_or(sd, 0 x02, 0 x0f, 0 x10);
if (is_digital_input(sd) && rgb_output) {
adv7842_set_offset(sd, false , 0 x40, 0 x40, 0 x40);
} else {
adv7842_set_gain(sd, false , 0 xe0, 0 xe0, 0 xe0);
adv7842_set_offset(sd, false , 0 x70, 0 x70, 0 x70);
}
}
break ;
case V4L2_DV_RGB_RANGE_LIMITED:
if (state->mode == ADV7842_MODE_COMP) {
/* YCrCb limited range (16-235) */
io_write_and_or(sd, 0 x02, 0 x0f, 0 x20);
break ;
}
if (y != HDMI_COLORSPACE_RGB)
break ;
/* RGB limited range (16-235) */
io_write_and_or(sd, 0 x02, 0 x0f, 0 x00);
break ;
case V4L2_DV_RGB_RANGE_FULL:
if (state->mode == ADV7842_MODE_COMP) {
/* YCrCb full range (0-255) */
io_write_and_or(sd, 0 x02, 0 x0f, 0 x60);
break ;
}
if (y != HDMI_COLORSPACE_RGB)
break ;
/* RGB full range (0-255) */
io_write_and_or(sd, 0 x02, 0 x0f, 0 x10);
if (is_analog_input(sd) || hdmi_signal)
break ;
/* Adjust gain/offset for DVI-D signals only */
if (rgb_output) {
adv7842_set_offset(sd, false , 0 x40, 0 x40, 0 x40);
} else {
adv7842_set_gain(sd, false , 0 xe0, 0 xe0, 0 xe0);
adv7842_set_offset(sd, false , 0 x70, 0 x70, 0 x70);
}
break ;
}
}
static int adv7842_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct v4l2_subdev *sd = to_sd(ctrl);
struct adv7842_state *state = to_state(sd);
/* TODO SDP ctrls
contrast/brightness/hue/free run is acting a bit strange,
not sure if sdp csc is correct.
*/
switch (ctrl->id) {
/* standard ctrls */
case V4L2_CID_BRIGHTNESS:
cp_write(sd, 0 x3c, ctrl->val);
sdp_write(sd, 0 x14, ctrl->val);
/* ignore lsb sdp 0x17[3:2] */
return 0 ;
case V4L2_CID_CONTRAST:
cp_write(sd, 0 x3a, ctrl->val);
sdp_write(sd, 0 x13, ctrl->val);
/* ignore lsb sdp 0x17[1:0] */
return 0 ;
case V4L2_CID_SATURATION:
cp_write(sd, 0 x3b, ctrl->val);
sdp_write(sd, 0 x15, ctrl->val);
/* ignore lsb sdp 0x17[5:4] */
return 0 ;
case V4L2_CID_HUE:
cp_write(sd, 0 x3d, ctrl->val);
sdp_write(sd, 0 x16, ctrl->val);
/* ignore lsb sdp 0x17[7:6] */
return 0 ;
/* custom ctrls */
case V4L2_CID_ADV_RX_ANALOG_SAMPLING_PHASE:
afe_write(sd, 0 xc8, ctrl->val);
return 0 ;
case V4L2_CID_ADV_RX_FREE_RUN_COLOR_MANUAL:
cp_write_and_or(sd, 0 xbf, ~0 x04, (ctrl->val << 2 ));
sdp_write_and_or(sd, 0 xdd, ~0 x04, (ctrl->val << 2 ));
return 0 ;
case V4L2_CID_ADV_RX_FREE_RUN_COLOR: {
u8 R = (ctrl->val & 0 xff0000) >> 16 ;
u8 G = (ctrl->val & 0 x00ff00) >> 8 ;
u8 B = (ctrl->val & 0 x0000ff);
/* RGB -> YUV, numerical approximation */
int Y = 66 * R + 129 * G + 25 * B;
int U = -38 * R - 74 * G + 112 * B;
int V = 112 * R - 94 * G - 18 * B;
/* Scale down to 8 bits with rounding */
Y = (Y + 128 ) >> 8 ;
U = (U + 128 ) >> 8 ;
V = (V + 128 ) >> 8 ;
/* make U,V positive */
Y += 16 ;
U += 128 ;
V += 128 ;
v4l2_dbg(1 , debug, sd, "R %x, G %x, B %x\n" , R, G, B);
v4l2_dbg(1 , debug, sd, "Y %x, U %x, V %x\n" , Y, U, V);
/* CP */
cp_write(sd, 0 xc1, R);
cp_write(sd, 0 xc0, G);
cp_write(sd, 0 xc2, B);
/* SDP */
sdp_write(sd, 0 xde, Y);
sdp_write(sd, 0 xdf, (V & 0 xf0) | ((U >> 4 ) & 0 x0f));
return 0 ;
}
case V4L2_CID_DV_RX_RGB_RANGE:
state->rgb_quantization_range = ctrl->val;
set_rgb_quantization_range(sd);
return 0 ;
}
return -EINVAL;
}
static int adv7842_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
{
struct v4l2_subdev *sd = to_sd(ctrl);
if (ctrl->id == V4L2_CID_DV_RX_IT_CONTENT_TYPE) {
ctrl->val = V4L2_DV_IT_CONTENT_TYPE_NO_ITC;
if ((io_read(sd, 0 x60) & 1 ) && (infoframe_read(sd, 0 x03) & 0 x80))
ctrl->val = (infoframe_read(sd, 0 x05) >> 4 ) & 3 ;
return 0 ;
}
return -EINVAL;
}
static inline bool no_power(struct v4l2_subdev *sd)
{
return io_read(sd, 0 x0c) & 0 x24;
}
static inline bool no_cp_signal(struct v4l2_subdev *sd)
{
return ((cp_read(sd, 0 xb5) & 0 xd0) != 0 xd0) || !(cp_read(sd, 0 xb1) & 0 x80);
}
static inline bool is_hdmi(struct v4l2_subdev *sd)
{
return hdmi_read(sd, 0 x05) & 0 x80;
}
static int adv7842_g_input_status(struct v4l2_subdev *sd, u32 *status)
{
struct adv7842_state *state = to_state(sd);
*status = 0 ;
if (io_read(sd, 0 x0c) & 0 x24)
*status |= V4L2_IN_ST_NO_POWER;
if (state->mode == ADV7842_MODE_SDP) {
/* status from SDP block */
if (!(sdp_read(sd, 0 x5A) & 0 x01))
*status |= V4L2_IN_ST_NO_SIGNAL;
v4l2_dbg(1 , debug, sd, "%s: SDP status = 0x%x\n" ,
__func__, *status);
return 0 ;
}
/* status from CP block */
if ((cp_read(sd, 0 xb5) & 0 xd0) != 0 xd0 ||
!(cp_read(sd, 0 xb1) & 0 x80))
/* TODO channel 2 */
*status |= V4L2_IN_ST_NO_SIGNAL;
if (is_digital_input(sd) && ((io_read(sd, 0 x74) & 0 x03) != 0 x03))
*status |= V4L2_IN_ST_NO_SIGNAL;
v4l2_dbg(1 , debug, sd, "%s: CP status = 0x%x\n" ,
__func__, *status);
return 0 ;
}
struct stdi_readback {
u16 bl, lcf, lcvs;
u8 hs_pol, vs_pol;
bool interlaced;
};
static int stdi2dv_timings(struct v4l2_subdev *sd,
struct stdi_readback *stdi,
struct v4l2_dv_timings *timings)
{
struct adv7842_state *state = to_state(sd);
u32 hfreq = (ADV7842_fsc * 8 ) / stdi->bl;
u32 pix_clk;
int i;
for (i = 0 ; v4l2_dv_timings_presets[i].bt.width; i++) {
const struct v4l2_bt_timings *bt = &v4l2_dv_timings_presets[i].bt;
if (!v4l2_valid_dv_timings(&v4l2_dv_timings_presets[i],
adv7842_get_dv_timings_cap(sd),
adv7842_check_dv_timings, NULL))
continue ;
if (vtotal(bt) != stdi->lcf + 1 )
continue ;
if (bt->vsync != stdi->lcvs)
continue ;
pix_clk = hfreq * htotal(bt);
if ((pix_clk < bt->pixelclock + 1000000 ) &&
(pix_clk > bt->pixelclock - 1000000 )) {
*timings = v4l2_dv_timings_presets[i];
return 0 ;
}
}
if (v4l2_detect_cvt(stdi->lcf + 1 , hfreq, stdi->lcvs, 0 ,
(stdi->hs_pol == '+' ? V4L2_DV_HSYNC_POS_POL : 0 ) |
(stdi->vs_pol == '+' ? V4L2_DV_VSYNC_POS_POL : 0 ),
false , adv7842_get_dv_timings_cap(sd), timings))
return 0 ;
if (v4l2_detect_gtf(stdi->lcf + 1 , hfreq, stdi->lcvs,
(stdi->hs_pol == '+' ? V4L2_DV_HSYNC_POS_POL : 0 ) |
(stdi->vs_pol == '+' ? V4L2_DV_VSYNC_POS_POL : 0 ),
false , state->aspect_ratio,
adv7842_get_dv_timings_cap(sd), timings))
return 0 ;
v4l2_dbg(2 , debug, sd,
"%s: No format candidate found for lcvs = %d, lcf=%d, bl = %d, %chsync, %cvsync\n" ,
__func__, stdi->lcvs, stdi->lcf, stdi->bl,
stdi->hs_pol, stdi->vs_pol);
return -1 ;
}
static int read_stdi(struct v4l2_subdev *sd, struct stdi_readback *stdi)
{
u32 status;
adv7842_g_input_status(sd, &status);
if (status & V4L2_IN_ST_NO_SIGNAL) {
v4l2_dbg(2 , debug, sd, "%s: no signal\n" , __func__);
return -ENOLINK;
}
stdi->bl = ((cp_read(sd, 0 xb1) & 0 x3f) << 8 ) | cp_read(sd, 0 xb2);
stdi->lcf = ((cp_read(sd, 0 xb3) & 0 x7) << 8 ) | cp_read(sd, 0 xb4);
stdi->lcvs = cp_read(sd, 0 xb3) >> 3 ;
if ((cp_read(sd, 0 xb5) & 0 x80) && ((cp_read(sd, 0 xb5) & 0 x03) == 0 x01)) {
stdi->hs_pol = ((cp_read(sd, 0 xb5) & 0 x10) ?
((cp_read(sd, 0 xb5) & 0 x08) ? '+' : '-' ) : 'x' );
stdi->vs_pol = ((cp_read(sd, 0 xb5) & 0 x40) ?
((cp_read(sd, 0 xb5) & 0 x20) ? '+' : '-' ) : 'x' );
} else {
stdi->hs_pol = 'x' ;
stdi->vs_pol = 'x' ;
}
stdi->interlaced = (cp_read(sd, 0 xb1) & 0 x40) ? true : false ;
if (stdi->lcf < 239 || stdi->bl < 8 || stdi->bl == 0 x3fff) {
v4l2_dbg(2 , debug, sd, "%s: invalid signal\n" , __func__);
return -ENOLINK;
}
v4l2_dbg(2 , debug, sd,
"%s: lcf (frame height - 1) = %d, bl = %d, lcvs (vsync) = %d, %chsync, %cvsync, %s\n" ,
__func__, stdi->lcf, stdi->bl, stdi->lcvs,
stdi->hs_pol, stdi->vs_pol,
stdi->interlaced ? "interlaced" : "progressive" );
return 0 ;
}
static int adv7842_enum_dv_timings(struct v4l2_subdev *sd,
struct v4l2_enum_dv_timings *timings)
{
if (timings->pad != 0 )
return -EINVAL;
return v4l2_enum_dv_timings_cap(timings,
adv7842_get_dv_timings_cap(sd), adv7842_check_dv_timings, NULL);
}
static int adv7842_dv_timings_cap(struct v4l2_subdev *sd,
struct v4l2_dv_timings_cap *cap)
{
if (cap->pad != 0 )
return -EINVAL;
*cap = *adv7842_get_dv_timings_cap(sd);
return 0 ;
}
/* Fill the optional fields .standards and .flags in struct v4l2_dv_timings
if the format is listed in adv7842_timings[] */
static void adv7842_fill_optional_dv_timings_fields(struct v4l2_subdev *sd,
struct v4l2_dv_timings *timings)
{
v4l2_find_dv_timings_cap(timings, adv7842_get_dv_timings_cap(sd),
is_digital_input(sd) ? 250000 : 1000000 ,
adv7842_check_dv_timings, NULL);
timings->bt.flags |= V4L2_DV_FL_CAN_DETECT_REDUCED_FPS;
}
static int adv7842_query_dv_timings(struct v4l2_subdev *sd, unsigned int pad,
struct v4l2_dv_timings *timings)
{
struct adv7842_state *state = to_state(sd);
struct v4l2_bt_timings *bt = &timings->bt;
struct stdi_readback stdi = { 0 };
v4l2_dbg(1 , debug, sd, "%s:\n" , __func__);
if (pad != 0 )
return -EINVAL;
memset(timings, 0 , sizeof (struct v4l2_dv_timings));
/* SDP block */
if (state->mode == ADV7842_MODE_SDP)
return -ENODATA;
/* read STDI */
if (read_stdi(sd, &stdi)) {
state->restart_stdi_once = true ;
v4l2_dbg(1 , debug, sd, "%s: no valid signal\n" , __func__);
return -ENOLINK;
}
bt->interlaced = stdi.interlaced ?
V4L2_DV_INTERLACED : V4L2_DV_PROGRESSIVE;
bt->standards = V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT;
if (is_digital_input(sd)) {
u32 freq;
timings->type = V4L2_DV_BT_656_1120;
bt->width = (hdmi_read(sd, 0 x07) & 0 x0f) * 256 + hdmi_read(sd, 0 x08);
bt->height = (hdmi_read(sd, 0 x09) & 0 x0f) * 256 + hdmi_read(sd, 0 x0a);
freq = ((hdmi_read(sd, 0 x51) << 1 ) + (hdmi_read(sd, 0 x52) >> 7 )) * 1000000 ;
freq += ((hdmi_read(sd, 0 x52) & 0 x7f) * 7813 );
if (is_hdmi(sd)) {
/* adjust for deep color mode */
freq = freq * 8 / (((hdmi_read(sd, 0 x0b) & 0 xc0) >> 6 ) * 2 + 8 );
}
bt->pixelclock = freq;
bt->hfrontporch = (hdmi_read(sd, 0 x20) & 0 x03) * 256 +
hdmi_read(sd, 0 x21);
bt->hsync = (hdmi_read(sd, 0 x22) & 0 x03) * 256 +
hdmi_read(sd, 0 x23);
bt->hbackporch = (hdmi_read(sd, 0 x24) & 0 x03) * 256 +
hdmi_read(sd, 0 x25);
bt->vfrontporch = ((hdmi_read(sd, 0 x2a) & 0 x1f) * 256 +
hdmi_read(sd, 0 x2b)) / 2 ;
bt->vsync = ((hdmi_read(sd, 0 x2e) & 0 x1f) * 256 +
hdmi_read(sd, 0 x2f)) / 2 ;
bt->vbackporch = ((hdmi_read(sd, 0 x32) & 0 x1f) * 256 +
hdmi_read(sd, 0 x33)) / 2 ;
bt->polarities = ((hdmi_read(sd, 0 x05) & 0 x10) ? V4L2_DV_VSYNC_POS_POL : 0 ) |
((hdmi_read(sd, 0 x05) & 0 x20) ? V4L2_DV_HSYNC_POS_POL : 0 );
if (bt->interlaced == V4L2_DV_INTERLACED) {
bt->height += (hdmi_read(sd, 0 x0b) & 0 x0f) * 256 +
hdmi_read(sd, 0 x0c);
bt->il_vfrontporch = ((hdmi_read(sd, 0 x2c) & 0 x1f) * 256 +
hdmi_read(sd, 0 x2d)) / 2 ;
bt->il_vsync = ((hdmi_read(sd, 0 x30) & 0 x1f) * 256 +
hdmi_read(sd, 0 x31)) / 2 ;
bt->il_vbackporch = ((hdmi_read(sd, 0 x34) & 0 x1f) * 256 +
hdmi_read(sd, 0 x35)) / 2 ;
} else {
bt->il_vfrontporch = 0 ;
bt->il_vsync = 0 ;
bt->il_vbackporch = 0 ;
}
adv7842_fill_optional_dv_timings_fields(sd, timings);
if ((timings->bt.flags & V4L2_DV_FL_CAN_REDUCE_FPS) &&
freq < bt->pixelclock) {
u32 reduced_freq = ((u32)bt->pixelclock / 1001 ) * 1000 ;
u32 delta_freq = abs(freq - reduced_freq);
if (delta_freq < ((u32)bt->pixelclock - reduced_freq) / 2 )
timings->bt.flags |= V4L2_DV_FL_REDUCED_FPS;
}
} else {
/* find format
* Since LCVS values are inaccurate [REF_03, p. 339-340],
* stdi2dv_timings() is called with lcvs +-1 if the first attempt fails.
*/
if (!stdi2dv_timings(sd, &stdi, timings))
goto found;
stdi.lcvs += 1 ;
v4l2_dbg(1 , debug, sd, "%s: lcvs + 1 = %d\n" , __func__, stdi.lcvs);
if (!stdi2dv_timings(sd, &stdi, timings))
goto found;
stdi.lcvs -= 2 ;
v4l2_dbg(1 , debug, sd, "%s: lcvs - 1 = %d\n" , __func__, stdi.lcvs);
if (stdi2dv_timings(sd, &stdi, timings)) {
/*
* The STDI block may measure wrong values, especially
* for lcvs and lcf. If the driver can not find any
* valid timing, the STDI block is restarted to measure
* the video timings again. The function will return an
* error, but the restart of STDI will generate a new
* STDI interrupt and the format detection process will
* restart.
*/
if (state->restart_stdi_once) {
v4l2_dbg(1 , debug, sd, "%s: restart STDI\n" , __func__);
/* TODO restart STDI for Sync Channel 2 */
/* enter one-shot mode */
cp_write_and_or(sd, 0 x86, 0 xf9, 0 x00);
/* trigger STDI restart */
cp_write_and_or(sd, 0 x86, 0 xf9, 0 x04);
/* reset to continuous mode */
cp_write_and_or(sd, 0 x86, 0 xf9, 0 x02);
state->restart_stdi_once = false ;
return -ENOLINK;
}
v4l2_dbg(1 , debug, sd, "%s: format not supported\n" , __func__);
return -ERANGE;
}
state->restart_stdi_once = true ;
}
found:
if (debug > 1 )
v4l2_print_dv_timings(sd->name, "adv7842_query_dv_timings:" ,
timings, true );
return 0 ;
}
static int adv7842_s_dv_timings(struct v4l2_subdev *sd, unsigned int pad,
struct v4l2_dv_timings *timings)
{
struct adv7842_state *state = to_state(sd);
struct v4l2_bt_timings *bt;
int err;
v4l2_dbg(1 , debug, sd, "%s:\n" , __func__);
if (pad != 0 )
return -EINVAL;
if (state->mode == ADV7842_MODE_SDP)
return -ENODATA;
if (v4l2_match_dv_timings(&state->timings, timings, 0 , false )) {
v4l2_dbg(1 , debug, sd, "%s: no change\n" , __func__);
return 0 ;
}
bt = &timings->bt;
if (!v4l2_valid_dv_timings(timings, adv7842_get_dv_timings_cap(sd),
adv7842_check_dv_timings, NULL))
return -ERANGE;
adv7842_fill_optional_dv_timings_fields(sd, timings);
state->timings = *timings;
cp_write(sd, 0 x91, bt->interlaced ? 0 x40 : 0 x00);
/* Use prim_mode and vid_std when available */
err = configure_predefined_video_timings(sd, timings);
if (err) {
/* custom settings when the video format
does not have prim_mode/vid_std */
configure_custom_video_timings(sd, bt);
}
set_rgb_quantization_range(sd);
if (debug > 1 )
v4l2_print_dv_timings(sd->name, "adv7842_s_dv_timings: " ,
timings, true );
return 0 ;
}
static int adv7842_g_dv_timings(struct v4l2_subdev *sd, unsigned int pad,
struct v4l2_dv_timings *timings)
{
struct adv7842_state *state = to_state(sd);
if (pad != 0 )
return -EINVAL;
if (state->mode == ADV7842_MODE_SDP)
return -ENODATA;
*timings = state->timings;
return 0 ;
}
static void enable_input(struct v4l2_subdev *sd)
{
struct adv7842_state *state = to_state(sd);
set_rgb_quantization_range(sd);
switch (state->mode) {
case ADV7842_MODE_SDP:
case ADV7842_MODE_COMP:
case ADV7842_MODE_RGB:
io_write(sd, 0 x15, 0 xb0); /* Disable Tristate of Pins (no audio) */
break ;
case ADV7842_MODE_HDMI:
hdmi_write(sd, 0 x01, 0 x00); /* Enable HDMI clock terminators */
io_write(sd, 0 x15, 0 xa0); /* Disable Tristate of Pins */
hdmi_write_and_or(sd, 0 x1a, 0 xef, 0 x00); /* Unmute audio */
break ;
default :
v4l2_dbg(2 , debug, sd, "%s: Unknown mode %d\n" ,
__func__, state->mode);
break ;
}
}
static void disable_input(struct v4l2_subdev *sd)
{
hdmi_write_and_or(sd, 0 x1a, 0 xef, 0 x10); /* Mute audio [REF_01, c. 2.2.2] */
msleep(16 ); /* 512 samples with >= 32 kHz sample rate [REF_03, c. 8.29] */
io_write(sd, 0 x15, 0 xbe); /* Tristate all outputs from video core */
hdmi_write(sd, 0 x01, 0 x78); /* Disable HDMI clock terminators */
}
static void sdp_csc_coeff(struct v4l2_subdev *sd,
const struct adv7842_sdp_csc_coeff *c)
{
/* csc auto/manual */
sdp_io_write_and_or(sd, 0 xe0, 0 xbf, c->manual ? 0 x00 : 0 x40);
if (!c->manual)
return ;
/* csc scaling */
sdp_io_write_and_or(sd, 0 xe0, 0 x7f, c->scaling == 2 ? 0 x80 : 0 x00);
/* A coeff */
sdp_io_write_and_or(sd, 0 xe0, 0 xe0, c->A1 >> 8 );
sdp_io_write(sd, 0 xe1, c->A1);
sdp_io_write_and_or(sd, 0 xe2, 0 xe0, c->A2 >> 8 );
sdp_io_write(sd, 0 xe3, c->A2);
sdp_io_write_and_or(sd, 0 xe4, 0 xe0, c->A3 >> 8 );
sdp_io_write(sd, 0 xe5, c->A3);
/* A scale */
sdp_io_write_and_or(sd, 0 xe6, 0 x80, c->A4 >> 8 );
sdp_io_write(sd, 0 xe7, c->A4);
/* B coeff */
sdp_io_write_and_or(sd, 0 xe8, 0 xe0, c->B1 >> 8 );
sdp_io_write(sd, 0 xe9, c->B1);
sdp_io_write_and_or(sd, 0 xea, 0 xe0, c->B2 >> 8 );
sdp_io_write(sd, 0 xeb, c->B2);
sdp_io_write_and_or(sd, 0 xec, 0 xe0, c->B3 >> 8 );
sdp_io_write(sd, 0 xed, c->B3);
/* B scale */
sdp_io_write_and_or(sd, 0 xee, 0 x80, c->B4 >> 8 );
sdp_io_write(sd, 0 xef, c->B4);
/* C coeff */
sdp_io_write_and_or(sd, 0 xf0, 0 xe0, c->C1 >> 8 );
sdp_io_write(sd, 0 xf1, c->C1);
sdp_io_write_and_or(sd, 0 xf2, 0 xe0, c->C2 >> 8 );
sdp_io_write(sd, 0 xf3, c->C2);
sdp_io_write_and_or(sd, 0 xf4, 0 xe0, c->C3 >> 8 );
sdp_io_write(sd, 0 xf5, c->C3);
/* C scale */
sdp_io_write_and_or(sd, 0 xf6, 0 x80, c->C4 >> 8 );
sdp_io_write(sd, 0 xf7, c->C4);
}
static void select_input(struct v4l2_subdev *sd,
enum adv7842_vid_std_select vid_std_select)
{
struct adv7842_state *state = to_state(sd);
switch (state->mode) {
case ADV7842_MODE_SDP:
io_write(sd, 0 x00, vid_std_select); /* video std: CVBS or YC mode */
io_write(sd, 0 x01, 0 ); /* prim mode */
/* enable embedded syncs for auto graphics mode */
cp_write_and_or(sd, 0 x81, 0 xef, 0 x10);
afe_write(sd, 0 x00, 0 x00); /* power up ADC */
afe_write(sd, 0 xc8, 0 x00); /* phase control */
io_write(sd, 0 xdd, 0 x90); /* Manual 2x output clock */
/* script says register 0xde, which don't exist in manual */
/* Manual analog input muxing mode, CVBS (6.4)*/
afe_write_and_or(sd, 0 x02, 0 x7f, 0 x80);
if (vid_std_select == ADV7842_SDP_VID_STD_CVBS_SD_4x1) {
afe_write(sd, 0 x03, 0 xa0); /* ADC0 to AIN10 (CVBS), ADC1 N/C*/
afe_write(sd, 0 x04, 0 x00); /* ADC2 N/C,ADC3 N/C*/
} else {
afe_write(sd, 0 x03, 0 xa0); /* ADC0 to AIN10 (CVBS), ADC1 N/C*/
afe_write(sd, 0 x04, 0 xc0); /* ADC2 to AIN12, ADC3 N/C*/
}
afe_write(sd, 0 x0c, 0 x1f); /* ADI recommend write */
afe_write(sd, 0 x12, 0 x63); /* ADI recommend write */
sdp_io_write(sd, 0 xb2, 0 x60); /* Disable AV codes */
sdp_io_write(sd, 0 xc8, 0 xe3); /* Disable Ancillary data */
/* SDP recommended settings */
sdp_write(sd, 0 x00, 0 x3F); /* Autodetect PAL NTSC (not SECAM) */
sdp_write(sd, 0 x01, 0 x00); /* Pedestal Off */
sdp_write(sd, 0 x03, 0 xE4); /* Manual VCR Gain Luma 0x40B */
sdp_write(sd, 0 x04, 0 x0B); /* Manual Luma setting */
sdp_write(sd, 0 x05, 0 xC3); /* Manual Chroma setting 0x3FE */
sdp_write(sd, 0 x06, 0 xFE); /* Manual Chroma setting */
sdp_write(sd, 0 x12, 0 x0D); /* Frame TBC,I_P, 3D comb enabled */
sdp_write(sd, 0 xA7, 0 x00); /* ADI Recommended Write */
sdp_io_write(sd, 0 xB0, 0 x00); /* Disable H and v blanking */
/* deinterlacer enabled and 3D comb */
sdp_write_and_or(sd, 0 x12, 0 xf6, 0 x09);
break ;
case ADV7842_MODE_COMP:
case ADV7842_MODE_RGB:
/* Automatic analog input muxing mode */
afe_write_and_or(sd, 0 x02, 0 x7f, 0 x00);
/* set mode and select free run resolution */
io_write(sd, 0 x00, vid_std_select); /* video std */
io_write(sd, 0 x01, 0 x02); /* prim mode */
cp_write_and_or(sd, 0 x81, 0 xef, 0 x10); /* enable embedded syncs
for auto graphics mode */
afe_write(sd, 0 x00, 0 x00); /* power up ADC */
afe_write(sd, 0 xc8, 0 x00); /* phase control */
if (state->mode == ADV7842_MODE_COMP) {
/* force to YCrCb */
io_write_and_or(sd, 0 x02, 0 x0f, 0 x60);
} else {
/* force to RGB */
io_write_and_or(sd, 0 x02, 0 x0f, 0 x10);
}
/* set ADI recommended settings for digitizer */
/* "ADV7842 Register Settings Recommendations
* (rev. 1.8, November 2010)" p. 9. */
afe_write(sd, 0 x0c, 0 x1f); /* ADC Range improvement */
afe_write(sd, 0 x12, 0 x63); /* ADC Range improvement */
/* set to default gain for RGB */
cp_write(sd, 0 x73, 0 x10);
cp_write(sd, 0 x74, 0 x04);
cp_write(sd, 0 x75, 0 x01);
cp_write(sd, 0 x76, 0 x00);
cp_write(sd, 0 x3e, 0 x04); /* CP core pre-gain control */
cp_write(sd, 0 xc3, 0 x39); /* CP coast control. Graphics mode */
cp_write(sd, 0 x40, 0 x5c); /* CP core pre-gain control. Graphics mode */
break ;
case ADV7842_MODE_HDMI:
/* Automatic analog input muxing mode */
afe_write_and_or(sd, 0 x02, 0 x7f, 0 x00);
/* set mode and select free run resolution */
if (state->hdmi_port_a)
hdmi_write(sd, 0 x00, 0 x02); /* select port A */
else
hdmi_write(sd, 0 x00, 0 x03); /* select port B */
io_write(sd, 0 x00, vid_std_select); /* video std */
io_write(sd, 0 x01, 5 ); /* prim mode */
cp_write_and_or(sd, 0 x81, 0 xef, 0 x00); /* disable embedded syncs
for auto graphics mode */
/* set ADI recommended settings for HDMI: */
/* "ADV7842 Register Settings Recommendations
* (rev. 1.8, November 2010)" p. 3. */
hdmi_write(sd, 0 xc0, 0 x00);
hdmi_write(sd, 0 x0d, 0 x34); /* ADI recommended write */
hdmi_write(sd, 0 x3d, 0 x10); /* ADI recommended write */
hdmi_write(sd, 0 x44, 0 x85); /* TMDS PLL optimization */
hdmi_write(sd, 0 x46, 0 x1f); /* ADI recommended write */
hdmi_write(sd, 0 x57, 0 xb6); /* TMDS PLL optimization */
hdmi_write(sd, 0 x58, 0 x03); /* TMDS PLL optimization */
hdmi_write(sd, 0 x60, 0 x88); /* TMDS PLL optimization */
hdmi_write(sd, 0 x61, 0 x88); /* TMDS PLL optimization */
hdmi_write(sd, 0 x6c, 0 x18); /* Disable ISRC clearing bit,
Improve robustness */
hdmi_write(sd, 0 x75, 0 x10); /* DDC drive strength */
hdmi_write(sd, 0 x85, 0 x1f); /* equaliser */
hdmi_write(sd, 0 x87, 0 x70); /* ADI recommended write */
hdmi_write(sd, 0 x89, 0 x04); /* equaliser */
hdmi_write(sd, 0 x8a, 0 x1e); /* equaliser */
hdmi_write(sd, 0 x93, 0 x04); /* equaliser */
hdmi_write(sd, 0 x94, 0 x1e); /* equaliser */
hdmi_write(sd, 0 x99, 0 xa1); /* ADI recommended write */
hdmi_write(sd, 0 x9b, 0 x09); /* ADI recommended write */
hdmi_write(sd, 0 x9d, 0 x02); /* equaliser */
afe_write(sd, 0 x00, 0 xff); /* power down ADC */
afe_write(sd, 0 xc8, 0 x40); /* phase control */
/* set to default gain for HDMI */
cp_write(sd, 0 x73, 0 x10);
cp_write(sd, 0 x74, 0 x04);
cp_write(sd, 0 x75, 0 x01);
cp_write(sd, 0 x76, 0 x00);
/* reset ADI recommended settings for digitizer */
/* "ADV7842 Register Settings Recommendations
* (rev. 2.5, June 2010)" p. 17. */
afe_write(sd, 0 x12, 0 xfb); /* ADC noise shaping filter controls */
afe_write(sd, 0 x0c, 0 x0d); /* CP core gain controls */
cp_write(sd, 0 x3e, 0 x00); /* CP core pre-gain control */
/* CP coast control */
cp_write(sd, 0 xc3, 0 x33); /* Component mode */
/* color space conversion, autodetect color space */
io_write_and_or(sd, 0 x02, 0 x0f, 0 xf0);
break ;
default :
v4l2_dbg(2 , debug, sd, "%s: Unknown mode %d\n" ,
__func__, state->mode);
break ;
}
}
static int adv7842_s_routing(struct v4l2_subdev *sd,
u32 input, u32 output, u32 config)
{
struct adv7842_state *state = to_state(sd);
v4l2_dbg(2 , debug, sd, "%s: input %d\n" , __func__, input);
switch (input) {
case ADV7842_SELECT_HDMI_PORT_A:
state->mode = ADV7842_MODE_HDMI;
state->vid_std_select = ADV7842_HDMI_COMP_VID_STD_HD_1250P;
state->hdmi_port_a = true ;
break ;
case ADV7842_SELECT_HDMI_PORT_B:
state->mode = ADV7842_MODE_HDMI;
state->vid_std_select = ADV7842_HDMI_COMP_VID_STD_HD_1250P;
state->hdmi_port_a = false ;
break ;
case ADV7842_SELECT_VGA_COMP:
state->mode = ADV7842_MODE_COMP;
state->vid_std_select = ADV7842_RGB_VID_STD_AUTO_GRAPH_MODE;
break ;
case ADV7842_SELECT_VGA_RGB:
state->mode = ADV7842_MODE_RGB;
state->vid_std_select = ADV7842_RGB_VID_STD_AUTO_GRAPH_MODE;
break ;
case ADV7842_SELECT_SDP_CVBS:
state->mode = ADV7842_MODE_SDP;
state->vid_std_select = ADV7842_SDP_VID_STD_CVBS_SD_4x1;
break ;
case ADV7842_SELECT_SDP_YC:
state->mode = ADV7842_MODE_SDP;
state->vid_std_select = ADV7842_SDP_VID_STD_YC_SD4_x1;
break ;
default :
return -EINVAL;
}
disable_input(sd);
select_input(sd, state->vid_std_select);
enable_input(sd);
v4l2_subdev_notify_event(sd, &adv7842_ev_fmt);
return 0 ;
}
static int adv7842_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_mbus_code_enum *code)
{
if (code->index >= ARRAY_SIZE(adv7842_formats))
return -EINVAL;
code->code = adv7842_formats[code->index].code;
return 0 ;
}
static void adv7842_fill_format(struct adv7842_state *state,
struct v4l2_mbus_framefmt *format)
{
memset(format, 0 , sizeof (*format));
format->width = state->timings.bt.width;
format->height = state->timings.bt.height;
format->field = V4L2_FIELD_NONE;
format->colorspace = V4L2_COLORSPACE_SRGB;
if (state->timings.bt.flags & V4L2_DV_FL_IS_CE_VIDEO)
format->colorspace = (state->timings.bt.height <= 576 ) ?
V4L2_COLORSPACE_SMPTE170M : V4L2_COLORSPACE_REC709;
}
/*
* Compute the op_ch_sel value required to obtain on the bus the component order
* corresponding to the selected format taking into account bus reordering
* applied by the board at the output of the device.
*
* The following table gives the op_ch_value from the format component order
* (expressed as op_ch_sel value in column) and the bus reordering (expressed as
* adv7842_bus_order value in row).
*
* | GBR(0) GRB(1) BGR(2) RGB(3) BRG(4) RBG(5)
* ----------+-------------------------------------------------
* RGB (NOP) | GBR GRB BGR RGB BRG RBG
* GRB (1-2) | BGR RGB GBR GRB RBG BRG
* RBG (2-3) | GRB GBR BRG RBG BGR RGB
* BGR (1-3) | RBG BRG RGB BGR GRB GBR
* BRG (ROR) | BRG RBG GRB GBR RGB BGR
* GBR (ROL) | RGB BGR RBG BRG GBR GRB
*/
static unsigned int adv7842_op_ch_sel(struct adv7842_state *state)
{
#define _SEL(a, b, c, d, e, f) { \
ADV7842_OP_CH_SEL_## a, ADV7842_OP_CH_SEL_## b, ADV7842_OP_CH_SEL_## c, \
ADV7842_OP_CH_SEL_## d, ADV7842_OP_CH_SEL_## e, ADV7842_OP_CH_SEL_## f }
#define _BUS(x) [ADV7842_BUS_ORDER_## x]
static const unsigned int op_ch_sel[6 ][6 ] = {
_BUS(RGB) /* NOP */ = _SEL(GBR, GRB, BGR, RGB, BRG, RBG),
_BUS(GRB) /* 1-2 */ = _SEL(BGR, RGB, GBR, GRB, RBG, BRG),
_BUS(RBG) /* 2-3 */ = _SEL(GRB, GBR, BRG, RBG, BGR, RGB),
_BUS(BGR) /* 1-3 */ = _SEL(RBG, BRG, RGB, BGR, GRB, GBR),
_BUS(BRG) /* ROR */ = _SEL(BRG, RBG, GRB, GBR, RGB, BGR),
_BUS(GBR) /* ROL */ = _SEL(RGB, BGR, RBG, BRG, GBR, GRB),
};
return op_ch_sel[state->pdata.bus_order][state->format->op_ch_sel >> 5 ];
}
static void adv7842_setup_format(struct adv7842_state *state)
{
struct v4l2_subdev *sd = &state->sd;
io_write_clr_set(sd, 0 x02, 0 x02,
state->format->rgb_out ? ADV7842_RGB_OUT : 0 );
io_write(sd, 0 x03, state->format->op_format_sel |
state->pdata.op_format_mode_sel);
io_write_clr_set(sd, 0 x04, 0 xe0, adv7842_op_ch_sel(state));
io_write_clr_set(sd, 0 x05, 0 x01,
state->format->swap_cb_cr ? ADV7842_OP_SWAP_CB_CR : 0 );
set_rgb_quantization_range(sd);
}
static int adv7842_get_format(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *format)
{
struct adv7842_state *state = to_state(sd);
if (format->pad != ADV7842_PAD_SOURCE)
return -EINVAL;
if (state->mode == ADV7842_MODE_SDP) {
/* SPD block */
if (!(sdp_read(sd, 0 x5a) & 0 x01))
return -EINVAL;
format->format.code = MEDIA_BUS_FMT_YUYV8_2X8;
format->format.width = 720 ;
/* valid signal */
if (state->norm & V4L2_STD_525_60)
format->format.height = 480 ;
else
format->format.height = 576 ;
format->format.colorspace = V4L2_COLORSPACE_SMPTE170M;
return 0 ;
}
adv7842_fill_format(state, &format->format);
if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
struct v4l2_mbus_framefmt *fmt;
fmt = v4l2_subdev_state_get_format(sd_state, format->pad);
format->format.code = fmt->code;
} else {
format->format.code = state->format->code;
}
return 0 ;
}
static int adv7842_set_format(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *format)
{
struct adv7842_state *state = to_state(sd);
const struct adv7842_format_info *info;
if (format->pad != ADV7842_PAD_SOURCE)
return -EINVAL;
if (state->mode == ADV7842_MODE_SDP)
return adv7842_get_format(sd, sd_state, format);
info = adv7842_format_info(state, format->format.code);
if (info == NULL)
info = adv7842_format_info(state, MEDIA_BUS_FMT_YUYV8_2X8);
adv7842_fill_format(state, &format->format);
format->format.code = info->code;
if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
struct v4l2_mbus_framefmt *fmt;
fmt = v4l2_subdev_state_get_format(sd_state, format->pad);
fmt->code = format->format.code;
} else {
state->format = info;
adv7842_setup_format(state);
}
return 0 ;
}
static void adv7842_irq_enable(struct v4l2_subdev *sd, bool enable)
{
if (enable) {
/* Enable SSPD, STDI and CP locked/unlocked interrupts */
io_write(sd, 0 x46, 0 x9c);
/* ESDP_50HZ_DET interrupt */
io_write(sd, 0 x5a, 0 x10);
/* Enable CABLE_DET_A/B_ST (+5v) interrupt */
io_write(sd, 0 x73, 0 x03);
/* Enable V_LOCKED and DE_REGEN_LCK interrupts */
io_write(sd, 0 x78, 0 x03);
/* Enable SDP Standard Detection Change and SDP Video Detected */
io_write(sd, 0 xa0, 0 x09);
/* Enable HDMI_MODE interrupt */
io_write(sd, 0 x69, 0 x08);
} else {
io_write(sd, 0 x46, 0 x0);
io_write(sd, 0 x5a, 0 x0);
io_write(sd, 0 x73, 0 x0);
io_write(sd, 0 x78, 0 x0);
io_write(sd, 0 xa0, 0 x0);
io_write(sd, 0 x69, 0 x0);
}
}
#if IS_ENABLED(CONFIG_VIDEO_ADV7842_CEC)
static void adv7842_cec_tx_raw_status(struct v4l2_subdev *sd, u8 tx_raw_status)
{
struct adv7842_state *state = to_state(sd);
if ((cec_read(sd, 0 x11) & 0 x01) == 0 ) {
v4l2_dbg(1 , debug, sd, "%s: tx raw: tx disabled\n" , __func__);
return ;
}
if (tx_raw_status & 0 x02) {
v4l2_dbg(1 , debug, sd, "%s: tx raw: arbitration lost\n" ,
__func__);
cec_transmit_done(state->cec_adap, CEC_TX_STATUS_ARB_LOST,
1 , 0 , 0 , 0 );
return ;
}
if (tx_raw_status & 0 x04) {
u8 status;
u8 nack_cnt;
u8 low_drive_cnt;
v4l2_dbg(1 , debug, sd, "%s: tx raw: retry failed\n" , __func__);
/*
* We set this status bit since this hardware performs
* retransmissions.
*/
status = CEC_TX_STATUS_MAX_RETRIES;
nack_cnt = cec_read(sd, 0 x14) & 0 xf;
if (nack_cnt)
status |= CEC_TX_STATUS_NACK;
low_drive_cnt = cec_read(sd, 0 x14) >> 4 ;
if (low_drive_cnt)
status |= CEC_TX_STATUS_LOW_DRIVE;
cec_transmit_done(state->cec_adap, status,
0 , nack_cnt, low_drive_cnt, 0 );
return ;
}
if (tx_raw_status & 0 x01) {
v4l2_dbg(1 , debug, sd, "%s: tx raw: ready ok\n" , __func__);
cec_transmit_done(state->cec_adap, CEC_TX_STATUS_OK, 0 , 0 , 0 , 0 );
return ;
}
}
static void adv7842_cec_isr(struct v4l2_subdev *sd, bool *handled)
{
u8 cec_irq;
/* cec controller */
cec_irq = io_read(sd, 0 x93) & 0 x0f;
if (!cec_irq)
return ;
v4l2_dbg(1 , debug, sd, "%s: cec: irq 0x%x\n" , __func__, cec_irq);
adv7842_cec_tx_raw_status(sd, cec_irq);
if (cec_irq & 0 x08) {
struct adv7842_state *state = to_state(sd);
struct cec_msg msg;
msg.len = cec_read(sd, 0 x25) & 0 x1f;
if (msg.len > CEC_MAX_MSG_SIZE)
msg.len = CEC_MAX_MSG_SIZE;
if (msg.len) {
u8 i;
for (i = 0 ; i < msg.len; i++)
msg.msg[i] = cec_read(sd, i + 0 x15);
cec_write(sd, 0 x26, 0 x01); /* re-enable rx */
cec_received_msg(state->cec_adap, &msg);
}
}
io_write(sd, 0 x94, cec_irq);
if (handled)
*handled = true ;
}
static int adv7842_cec_adap_enable(struct cec_adapter *adap, bool enable)
{
struct adv7842_state *state = cec_get_drvdata(adap);
struct v4l2_subdev *sd = &state->sd;
if (!state->cec_enabled_adap && enable) {
cec_write_clr_set(sd, 0 x2a, 0 x01, 0 x01); /* power up cec */
cec_write(sd, 0 x2c, 0 x01); /* cec soft reset */
cec_write_clr_set(sd, 0 x11, 0 x01, 0 ); /* initially disable tx */
/* enabled irqs: */
/* tx: ready */
/* tx: arbitration lost */
/* tx: retry timeout */
/* rx: ready */
io_write_clr_set(sd, 0 x96, 0 x0f, 0 x0f);
cec_write(sd, 0 x26, 0 x01); /* enable rx */
} else if (state->cec_enabled_adap && !enable) {
/* disable cec interrupts */
io_write_clr_set(sd, 0 x96, 0 x0f, 0 x00);
/* disable address mask 1-3 */
cec_write_clr_set(sd, 0 x27, 0 x70, 0 x00);
/* power down cec section */
cec_write_clr_set(sd, 0 x2a, 0 x01, 0 x00);
state->cec_valid_addrs = 0 ;
}
state->cec_enabled_adap = enable;
return 0 ;
}
static int adv7842_cec_adap_log_addr(struct cec_adapter *adap, u8 addr)
{
struct adv7842_state *state = cec_get_drvdata(adap);
struct v4l2_subdev *sd = &state->sd;
unsigned int i, free_idx = ADV7842_MAX_ADDRS;
if (!state->cec_enabled_adap)
return addr == CEC_LOG_ADDR_INVALID ? 0 : -EIO;
if (addr == CEC_LOG_ADDR_INVALID) {
cec_write_clr_set(sd, 0 x27, 0 x70, 0 );
state->cec_valid_addrs = 0 ;
return 0 ;
}
for (i = 0 ; i < ADV7842_MAX_ADDRS; i++) {
bool is_valid = state->cec_valid_addrs & (1 << i);
if (free_idx == ADV7842_MAX_ADDRS && !is_valid)
free_idx = i;
if (is_valid && state->cec_addr[i] == addr)
return 0 ;
}
if (i == ADV7842_MAX_ADDRS) {
i = free_idx;
if (i == ADV7842_MAX_ADDRS)
return -ENXIO;
}
state->cec_addr[i] = addr;
state->cec_valid_addrs |= 1 << i;
switch (i) {
case 0 :
/* enable address mask 0 */
cec_write_clr_set(sd, 0 x27, 0 x10, 0 x10);
/* set address for mask 0 */
cec_write_clr_set(sd, 0 x28, 0 x0f, addr);
break ;
case 1 :
/* enable address mask 1 */
cec_write_clr_set(sd, 0 x27, 0 x20, 0 x20);
/* set address for mask 1 */
cec_write_clr_set(sd, 0 x28, 0 xf0, addr << 4 );
break ;
case 2 :
/* enable address mask 2 */
cec_write_clr_set(sd, 0 x27, 0 x40, 0 x40);
/* set address for mask 1 */
cec_write_clr_set(sd, 0 x29, 0 x0f, addr);
break ;
}
return 0 ;
}
static int adv7842_cec_adap_transmit(struct cec_adapter *adap, u8 attempts,
u32 signal_free_time, struct cec_msg *msg)
{
struct adv7842_state *state = cec_get_drvdata(adap);
struct v4l2_subdev *sd = &state->sd;
u8 len = msg->len;
unsigned int i;
/*
* The number of retries is the number of attempts - 1, but retry
* at least once. It's not clear if a value of 0 is allowed, so
* let's do at least one retry.
*/
cec_write_clr_set(sd, 0 x12, 0 x70, max(1 , attempts - 1 ) << 4 );
if (len > 16 ) {
v4l2_err(sd, "%s: len exceeded 16 (%d)\n" , __func__, len);
return -EINVAL;
}
/* write data */
for (i = 0 ; i < len; i++)
cec_write(sd, i, msg->msg[i]);
/* set length (data + header) */
cec_write(sd, 0 x10, len);
/* start transmit, enable tx */
cec_write(sd, 0 x11, 0 x01);
return 0 ;
}
static const struct cec_adap_ops adv7842_cec_adap_ops = {
.adap_enable = adv7842_cec_adap_enable,
.adap_log_addr = adv7842_cec_adap_log_addr,
.adap_transmit = adv7842_cec_adap_transmit,
};
#endif
static int adv7842_isr(struct v4l2_subdev *sd, u32 status, bool *handled)
{
struct adv7842_state *state = to_state(sd);
u8 fmt_change_cp, fmt_change_digital, fmt_change_sdp;
u8 irq_status[6 ];
adv7842_irq_enable(sd, false );
/* read status */
irq_status[0 ] = io_read(sd, 0 x43);
irq_status[1 ] = io_read(sd, 0 x57);
irq_status[2 ] = io_read(sd, 0 x70);
irq_status[3 ] = io_read(sd, 0 x75);
irq_status[4 ] = io_read(sd, 0 x9d);
irq_status[5 ] = io_read(sd, 0 x66);
/* and clear */
if (irq_status[0 ])
io_write(sd, 0 x44, irq_status[0 ]);
if (irq_status[1 ])
io_write(sd, 0 x58, irq_status[1 ]);
if (irq_status[2 ])
io_write(sd, 0 x71, irq_status[2 ]);
if (irq_status[3 ])
io_write(sd, 0 x76, irq_status[3 ]);
if (irq_status[4 ])
io_write(sd, 0 x9e, irq_status[4 ]);
if (irq_status[5 ])
io_write(sd, 0 x67, irq_status[5 ]);
adv7842_irq_enable(sd, true );
v4l2_dbg(1 , debug, sd, "%s: irq %x, %x, %x, %x, %x, %x\n" , __func__,
irq_status[0 ], irq_status[1 ], irq_status[2 ],
irq_status[3 ], irq_status[4 ], irq_status[5 ]);
/* format change CP */
fmt_change_cp = irq_status[0 ] & 0 x9c;
/* format change SDP */
if (state->mode == ADV7842_MODE_SDP)
fmt_change_sdp = (irq_status[1 ] & 0 x30) | (irq_status[4 ] & 0 x09);
else
fmt_change_sdp = 0 ;
/* digital format CP */
if (is_digital_input(sd))
fmt_change_digital = irq_status[3 ] & 0 x03;
else
fmt_change_digital = 0 ;
/* format change */
if (fmt_change_cp || fmt_change_digital || fmt_change_sdp) {
v4l2_dbg(1 , debug, sd,
"%s: fmt_change_cp = 0x%x, fmt_change_digital = 0x%x, fmt_change_sdp = 0x%x\n" ,
__func__, fmt_change_cp, fmt_change_digital,
fmt_change_sdp);
v4l2_subdev_notify_event(sd, &adv7842_ev_fmt);
if (handled)
*handled = true ;
}
/* HDMI/DVI mode */
if (irq_status[5 ] & 0 x08) {
v4l2_dbg(1 , debug, sd, "%s: irq %s mode\n" , __func__,
(io_read(sd, 0 x65) & 0 x08) ? "HDMI" : "DVI" );
set_rgb_quantization_range(sd);
if (handled)
*handled = true ;
}
#if IS_ENABLED(CONFIG_VIDEO_ADV7842_CEC)
/* cec */
adv7842_cec_isr(sd, handled);
#endif
/* tx 5v detect */
if (irq_status[2 ] & 0 x3) {
v4l2_dbg(1 , debug, sd, "%s: irq tx_5v\n" , __func__);
adv7842_s_detect_tx_5v_ctrl(sd);
if (handled)
*handled = true ;
}
return 0 ;
}
static int adv7842_get_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid)
{
struct adv7842_state *state = to_state(sd);
u32 blocks = 0 ;
u8 *data = NULL;
memset(edid->reserved, 0 , sizeof (edid->reserved));
switch (edid->pad) {
case ADV7842_EDID_PORT_A:
case ADV7842_EDID_PORT_B:
if (state->hdmi_edid.present & (0 x04 << edid->pad)) {
data = state->hdmi_edid.edid;
blocks = state->hdmi_edid.blocks;
}
break ;
case ADV7842_EDID_PORT_VGA:
if (state->vga_edid.present) {
data = state->vga_edid.edid;
blocks = state->vga_edid.blocks;
}
break ;
default :
return -EINVAL;
}
if (edid->start_block == 0 && edid->blocks == 0 ) {
edid->blocks = blocks;
return 0 ;
}
if (!data)
return -ENODATA;
if (edid->start_block >= blocks)
return -EINVAL;
if (edid->start_block + edid->blocks > blocks)
edid->blocks = blocks - edid->start_block;
memcpy(edid->edid, data + edid->start_block * 128 , edid->blocks * 128 );
return 0 ;
}
/*
* If the VGA_EDID_ENABLE bit is set (Repeater Map 0x7f, bit 7), then
* the first two blocks of the EDID are for the HDMI, and the first block
* of segment 1 (i.e. the third block of the EDID) is for VGA.
* So if a VGA EDID is installed, then the maximum size of the HDMI EDID
* is 2 blocks.
*/
static int adv7842_set_edid(struct v4l2_subdev *sd, struct v4l2_edid *e)
{
struct adv7842_state *state = to_state(sd);
unsigned int max_blocks = e->pad == ADV7842_EDID_PORT_VGA ? 1 : 4 ;
int err = 0 ;
memset(e->reserved, 0 , sizeof (e->reserved));
if (e->pad > ADV7842_EDID_PORT_VGA)
return -EINVAL;
if (e->start_block != 0 )
return -EINVAL;
if (e->pad < ADV7842_EDID_PORT_VGA && state->vga_edid.blocks)
max_blocks = 2 ;
if (e->pad == ADV7842_EDID_PORT_VGA && state->hdmi_edid.blocks > 2 )
return -EBUSY;
if (e->blocks > max_blocks) {
e->blocks = max_blocks;
return -E2BIG;
}
/* todo, per edid */
if (e->blocks)
state->aspect_ratio = v4l2_calc_aspect_ratio(e->edid[0 x15],
e->edid[0 x16]);
switch (e->pad) {
case ADV7842_EDID_PORT_VGA:
memset(state->vga_edid.edid, 0 , sizeof (state->vga_edid.edid));
state->vga_edid.blocks = e->blocks;
state->vga_edid.present = e->blocks ? 0 x1 : 0 x0;
if (e->blocks)
memcpy(state->vga_edid.edid, e->edid, 128 );
err = edid_write_vga_segment(sd);
break ;
case ADV7842_EDID_PORT_A:
case ADV7842_EDID_PORT_B:
memset(state->hdmi_edid.edid, 0 , sizeof (state->hdmi_edid.edid));
state->hdmi_edid.blocks = e->blocks;
if (e->blocks) {
state->hdmi_edid.present |= 0 x04 << e->pad;
memcpy(state->hdmi_edid.edid, e->edid, 128 * e->blocks);
} else {
state->hdmi_edid.present &= ~(0 x04 << e->pad);
adv7842_s_detect_tx_5v_ctrl(sd);
}
err = edid_write_hdmi_segment(sd, e->pad);
break ;
default :
return -EINVAL;
}
if (err < 0 )
v4l2_err(sd, "error %d writing edid on port %d\n" , err, e->pad);
return err;
}
struct adv7842_cfg_read_infoframe {
const char *desc;
u8 present_mask;
u8 head_addr;
u8 payload_addr;
};
static const struct adv7842_cfg_read_infoframe adv7842_cri[] = {
{ "AVI" , 0 x01, 0 xe0, 0 x00 },
{ "Audio" , 0 x02, 0 xe3, 0 x1c },
{ "SDP" , 0 x04, 0 xe6, 0 x2a },
{ "Vendor" , 0 x10, 0 xec, 0 x54 }
};
static int adv7842_read_infoframe_buf(struct v4l2_subdev *sd, int index,
u8 buf[V4L2_DEBUGFS_IF_MAX_LEN])
{
const struct adv7842_cfg_read_infoframe *cri = &adv7842_cri[index];
int len, i;
if (!(io_read(sd, 0 x60) & cri->present_mask)) {
v4l2_dbg(1 , debug, sd,
"%s infoframe not received\n" , cri->desc);
return -ENOENT;
}
for (i = 0 ; i < 3 ; i++)
buf[i] = infoframe_read(sd, cri->head_addr + i);
len = buf[2 ] + 1 ;
if (len + 3 > V4L2_DEBUGFS_IF_MAX_LEN) {
v4l2_err(sd, "%s: invalid %s infoframe length %d\n" ,
__func__, cri->desc, len);
return -ENOENT;
}
for (i = 0 ; i < len; i++)
buf[i + 3 ] = infoframe_read(sd, cri->payload_addr + i);
return len + 3 ;
}
static void adv7842_log_infoframes(struct v4l2_subdev *sd)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct device *dev = &client->dev;
union hdmi_infoframe frame;
u8 buffer[V4L2_DEBUGFS_IF_MAX_LEN] = {};
int len, i;
if (!(hdmi_read(sd, 0 x05) & 0 x80)) {
v4l2_info(sd, "receive DVI-D signal, no infoframes\n" );
return ;
}
for (i = 0 ; i < ARRAY_SIZE(adv7842_cri); i++) {
len = adv7842_read_infoframe_buf(sd, i, buffer);
if (len < 0 )
continue ;
if (hdmi_infoframe_unpack(&frame, buffer, len) < 0 )
v4l2_err(sd, "%s: unpack of %s infoframe failed\n" ,
__func__, adv7842_cri[i].desc);
else
hdmi_infoframe_log(KERN_INFO, dev, &frame);
}
}
#if 0
/* Let's keep it here for now, as it could be useful for debug */
static const char * const prim_mode_txt[] = {
"SDP" ,
"Component" ,
"Graphics" ,
"Reserved" ,
"CVBS & HDMI AUDIO" ,
"HDMI-Comp" ,
"HDMI-GR" ,
"Reserved" ,
"Reserved" ,
"Reserved" ,
"Reserved" ,
"Reserved" ,
"Reserved" ,
"Reserved" ,
"Reserved" ,
"Reserved" ,
};
#endif
static int adv7842_sdp_log_status(struct v4l2_subdev *sd)
{
/* SDP (Standard definition processor) block */
u8 sdp_signal_detected = sdp_read(sd, 0 x5A) & 0 x01;
v4l2_info(sd, "Chip powered %s\n" , no_power(sd) ? "off" : "on" );
v4l2_info(sd, "Prim-mode = 0x%x, video std = 0x%x\n" ,
io_read(sd, 0 x01) & 0 x0f, io_read(sd, 0 x00) & 0 x3f);
v4l2_info(sd, "SDP: free run: %s\n" ,
(sdp_read(sd, 0 x56) & 0 x01) ? "on" : "off" );
v4l2_info(sd, "SDP: %s\n" , sdp_signal_detected ?
"valid SD/PR signal detected" : "invalid/no signal" );
if (sdp_signal_detected) {
static const char * const sdp_std_txt[] = {
"NTSC-M/J" ,
"1?" ,
"NTSC-443" ,
"60HzSECAM" ,
"PAL-M" ,
"5?" ,
"PAL-60" ,
"7?" , "8?" , "9?" , "a?" , "b?" ,
"PAL-CombN" ,
"d?" ,
"PAL-BGHID" ,
"SECAM"
};
v4l2_info(sd, "SDP: standard %s\n" ,
sdp_std_txt[sdp_read(sd, 0 x52) & 0 x0f]);
v4l2_info(sd, "SDP: %s\n" ,
(sdp_read(sd, 0 x59) & 0 x08) ? "50Hz" : "60Hz" );
v4l2_info(sd, "SDP: %s\n" ,
(sdp_read(sd, 0 x57) & 0 x08) ? "Interlaced" : "Progressive" );
v4l2_info(sd, "SDP: deinterlacer %s\n" ,
(sdp_read(sd, 0 x12) & 0 x08) ? "enabled" : "disabled" );
v4l2_info(sd, "SDP: csc %s mode\n" ,
(sdp_io_read(sd, 0 xe0) & 0 x40) ? "auto" : "manual" );
}
return 0 ;
}
static int adv7842_cp_log_status(struct v4l2_subdev *sd)
{
/* CP block */
struct adv7842_state *state = to_state(sd);
struct v4l2_dv_timings timings;
u8 reg_io_0x02 = io_read(sd, 0 x02);
u8 reg_io_0x21 = io_read(sd, 0 x21);
u8 reg_rep_0x77 = rep_read(sd, 0 x77);
u8 reg_rep_0x7d = rep_read(sd, 0 x7d);
bool audio_pll_locked = hdmi_read(sd, 0 x04) & 0 x01;
bool audio_sample_packet_detect = hdmi_read(sd, 0 x18) & 0 x01;
bool audio_mute = io_read(sd, 0 x65) & 0 x40;
static const char * const csc_coeff_sel_rb[16 ] = {
"bypassed" , "YPbPr601 -> RGB" , "reserved" , "YPbPr709 -> RGB" ,
"reserved" , "RGB -> YPbPr601" , "reserved" , "RGB -> YPbPr709" ,
"reserved" , "YPbPr709 -> YPbPr601" , "YPbPr601 -> YPbPr709" ,
"reserved" , "reserved" , "reserved" , "reserved" , "manual"
};
static const char * const input_color_space_txt[16 ] = {
"RGB limited range (16-235)" , "RGB full range (0-255)" ,
"YCbCr Bt.601 (16-235)" , "YCbCr Bt.709 (16-235)" ,
"xvYCC Bt.601" , "xvYCC Bt.709" ,
"YCbCr Bt.601 (0-255)" , "YCbCr Bt.709 (0-255)" ,
"invalid" , "invalid" , "invalid" , "invalid" , "invalid" ,
"invalid" , "invalid" , "automatic"
};
static const char * const rgb_quantization_range_txt[] = {
"Automatic" ,
"RGB limited range (16-235)" ,
"RGB full range (0-255)" ,
};
static const char * const deep_color_mode_txt[4 ] = {
"8-bits per channel" ,
"10-bits per channel" ,
"12-bits per channel" ,
"16-bits per channel (not supported)"
};
v4l2_info(sd, "-----Chip status-----\n" );
v4l2_info(sd, "Chip power: %s\n" , no_power(sd) ? "off" : "on" );
v4l2_info(sd, "HDMI/DVI-D port selected: %s\n" ,
state->hdmi_port_a ? "A" : "B" );
v4l2_info(sd, "EDID A %s, B %s\n" ,
((reg_rep_0x7d & 0 x04) && (reg_rep_0x77 & 0 x04)) ?
"enabled" : "disabled" ,
((reg_rep_0x7d & 0 x08) && (reg_rep_0x77 & 0 x08)) ?
"enabled" : "disabled" );
v4l2_info(sd, "HPD A %s, B %s\n" ,
reg_io_0x21 & 0 x02 ? "enabled" : "disabled" ,
reg_io_0x21 & 0 x01 ? "enabled" : "disabled" );
v4l2_info(sd, "CEC: %s\n" , state->cec_enabled_adap ?
"enabled" : "disabled" );
if (state->cec_enabled_adap) {
int i;
for (i = 0 ; i < ADV7842_MAX_ADDRS; i++) {
bool is_valid = state->cec_valid_addrs & (1 << i);
if (is_valid)
v4l2_info(sd, "CEC Logical Address: 0x%x\n" ,
state->cec_addr[i]);
}
}
v4l2_info(sd, "-----Signal status-----\n" );
if (state->hdmi_port_a) {
v4l2_info(sd, "Cable detected (+5V power): %s\n" ,
io_read(sd, 0 x6f) & 0 x02 ? "true" : "false" );
v4l2_info(sd, "TMDS signal detected: %s\n" ,
(io_read(sd, 0 x6a) & 0 x02) ? "true" : "false" );
v4l2_info(sd, "TMDS signal locked: %s\n" ,
(io_read(sd, 0 x6a) & 0 x20) ? "true" : "false" );
} else {
v4l2_info(sd, "Cable detected (+5V power):%s\n" ,
io_read(sd, 0 x6f) & 0 x01 ? "true" : "false" );
v4l2_info(sd, "TMDS signal detected: %s\n" ,
(io_read(sd, 0 x6a) & 0 x01) ? "true" : "false" );
v4l2_info(sd, "TMDS signal locked: %s\n" ,
(io_read(sd, 0 x6a) & 0 x10) ? "true" : "false" );
}
v4l2_info(sd, "CP free run: %s\n" ,
(!!(cp_read(sd, 0 xff) & 0 x10) ? "on" : "off" ));
v4l2_info(sd, "Prim-mode = 0x%x, video std = 0x%x, v_freq = 0x%x\n" ,
io_read(sd, 0 x01) & 0 x0f, io_read(sd, 0 x00) & 0 x3f,
(io_read(sd, 0 x01) & 0 x70) >> 4 );
v4l2_info(sd, "-----Video Timings-----\n" );
if (no_cp_signal(sd)) {
v4l2_info(sd, "STDI: not locked\n" );
} else {
u32 bl = ((cp_read(sd, 0 xb1) & 0 x3f) << 8 ) | cp_read(sd, 0 xb2);
u32 lcf = ((cp_read(sd, 0 xb3) & 0 x7) << 8 ) | cp_read(sd, 0 xb4);
u32 lcvs = cp_read(sd, 0 xb3) >> 3 ;
u32 fcl = ((cp_read(sd, 0 xb8) & 0 x1f) << 8 ) | cp_read(sd, 0 xb9);
char hs_pol = ((cp_read(sd, 0 xb5) & 0 x10) ?
((cp_read(sd, 0 xb5) & 0 x08) ? '+' : '-' ) : 'x' );
char vs_pol = ((cp_read(sd, 0 xb5) & 0 x40) ?
((cp_read(sd, 0 xb5) & 0 x20) ? '+' : '-' ) : 'x' );
v4l2_info(sd,
"STDI: lcf (frame height - 1) = %d, bl = %d, lcvs (vsync) = %d, fcl = %d, %s, %chsync, %cvsync\n" ,
lcf, bl, lcvs, fcl,
(cp_read(sd, 0 xb1) & 0 x40) ?
"interlaced" : "progressive" ,
hs_pol, vs_pol);
}
if (adv7842_query_dv_timings(sd, 0 , &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 );
if (no_cp_signal(sd))
return 0 ;
v4l2_info(sd, "-----Color space-----\n" );
v4l2_info(sd, "RGB quantization range ctrl: %s\n" ,
rgb_quantization_range_txt[state->rgb_quantization_range]);
v4l2_info(sd, "Input color space: %s\n" ,
input_color_space_txt[reg_io_0x02 >> 4 ]);
v4l2_info(sd, "Output color space: %s %s, alt-gamma %s\n" ,
(reg_io_0x02 & 0 x02) ? "RGB" : "YCbCr" ,
(((reg_io_0x02 >> 2 ) & 0 x01) ^ (reg_io_0x02 & 0 x01)) ?
"(16-235)" : "(0-255)" ,
(reg_io_0x02 & 0 x08) ? "enabled" : "disabled" );
v4l2_info(sd, "Color space conversion: %s\n" ,
csc_coeff_sel_rb[cp_read(sd, 0 xf4) >> 4 ]);
if (!is_digital_input(sd))
return 0 ;
v4l2_info(sd, "-----%s status-----\n" , is_hdmi(sd) ? "HDMI" : "DVI-D" );
v4l2_info(sd, "HDCP encrypted content: %s\n" ,
(hdmi_read(sd, 0 x05) & 0 x40) ? "true" : "false" );
v4l2_info(sd, "HDCP keys read: %s%s\n" ,
(hdmi_read(sd, 0 x04) & 0 x20) ? "yes" : "no" ,
(hdmi_read(sd, 0 x04) & 0 x10) ? "ERROR" : "" );
if (!is_hdmi(sd))
return 0 ;
v4l2_info(sd, "Audio: pll %s, samples %s, %s\n" ,
audio_pll_locked ? "locked" : "not locked" ,
audio_sample_packet_detect ? "detected" : "not detected" ,
audio_mute ? "muted" : "enabled" );
if (audio_pll_locked && audio_sample_packet_detect) {
v4l2_info(sd, "Audio format: %s\n" ,
(hdmi_read(sd, 0 x07) & 0 x40) ? "multi-channel" : "stereo" );
}
v4l2_info(sd, "Audio CTS: %u\n" , (hdmi_read(sd, 0 x5b) << 12 ) +
(hdmi_read(sd, 0 x5c) << 8 ) +
(hdmi_read(sd, 0 x5d) & 0 xf0));
v4l2_info(sd, "Audio N: %u\n" , ((hdmi_read(sd, 0 x5d) & 0 x0f) << 16 ) +
(hdmi_read(sd, 0 x5e) << 8 ) +
hdmi_read(sd, 0 x5f));
v4l2_info(sd, "AV Mute: %s\n" ,
(hdmi_read(sd, 0 x04) & 0 x40) ? "on" : "off" );
v4l2_info(sd, "Deep color mode: %s\n" ,
deep_color_mode_txt[hdmi_read(sd, 0 x0b) >> 6 ]);
adv7842_log_infoframes(sd);
return 0 ;
}
static int adv7842_log_status(struct v4l2_subdev *sd)
{
struct adv7842_state *state = to_state(sd);
if (state->mode == ADV7842_MODE_SDP)
return adv7842_sdp_log_status(sd);
return adv7842_cp_log_status(sd);
}
static int adv7842_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
{
struct adv7842_state *state = to_state(sd);
v4l2_dbg(1 , debug, sd, "%s:\n" , __func__);
if (state->mode != ADV7842_MODE_SDP)
return -ENODATA;
if (!(sdp_read(sd, 0 x5A) & 0 x01)) {
*std = 0 ;
v4l2_dbg(1 , debug, sd, "%s: no valid signal\n" , __func__);
return 0 ;
}
switch (sdp_read(sd, 0 x52) & 0 x0f) {
case 0 :
/* NTSC-M/J */
*std &= V4L2_STD_NTSC;
break ;
case 2 :
/* NTSC-443 */
*std &= V4L2_STD_NTSC_443;
break ;
case 3 :
/* 60HzSECAM */
*std &= V4L2_STD_SECAM;
break ;
case 4 :
/* PAL-M */
*std &= V4L2_STD_PAL_M;
break ;
case 6 :
/* PAL-60 */
*std &= V4L2_STD_PAL_60;
break ;
case 0 xc:
/* PAL-CombN */
*std &= V4L2_STD_PAL_Nc;
break ;
case 0 xe:
/* PAL-BGHID */
*std &= V4L2_STD_PAL;
break ;
case 0 xf:
/* SECAM */
*std &= V4L2_STD_SECAM;
break ;
default :
*std &= V4L2_STD_ALL;
break ;
}
return 0 ;
}
static void adv7842_s_sdp_io(struct v4l2_subdev *sd, struct adv7842_sdp_io_sync_adjustment *s)
{
if (s && s->adjust) {
sdp_io_write(sd, 0 x94, (s->hs_beg >> 8 ) & 0 xf);
sdp_io_write(sd, 0 x95, s->hs_beg & 0 xff);
sdp_io_write(sd, 0 x96, (s->hs_width >> 8 ) & 0 xf);
sdp_io_write(sd, 0 x97, s->hs_width & 0 xff);
sdp_io_write(sd, 0 x98, (s->de_beg >> 8 ) & 0 xf);
sdp_io_write(sd, 0 x99, s->de_beg & 0 xff);
sdp_io_write(sd, 0 x9a, (s->de_end >> 8 ) & 0 xf);
sdp_io_write(sd, 0 x9b, s->de_end & 0 xff);
sdp_io_write(sd, 0 xa8, s->vs_beg_o);
sdp_io_write(sd, 0 xa9, s->vs_beg_e);
sdp_io_write(sd, 0 xaa, s->vs_end_o);
sdp_io_write(sd, 0 xab, s->vs_end_e);
sdp_io_write(sd, 0 xac, s->de_v_beg_o);
sdp_io_write(sd, 0 xad, s->de_v_beg_e);
sdp_io_write(sd, 0 xae, s->de_v_end_o);
sdp_io_write(sd, 0 xaf, s->de_v_end_e);
} else {
/* set to default */
sdp_io_write(sd, 0 x94, 0 x00);
sdp_io_write(sd, 0 x95, 0 x00);
sdp_io_write(sd, 0 x96, 0 x00);
sdp_io_write(sd, 0 x97, 0 x20);
sdp_io_write(sd, 0 x98, 0 x00);
sdp_io_write(sd, 0 x99, 0 x00);
sdp_io_write(sd, 0 x9a, 0 x00);
sdp_io_write(sd, 0 x9b, 0 x00);
sdp_io_write(sd, 0 xa8, 0 x04);
sdp_io_write(sd, 0 xa9, 0 x04);
sdp_io_write(sd, 0 xaa, 0 x04);
sdp_io_write(sd, 0 xab, 0 x04);
sdp_io_write(sd, 0 xac, 0 x04);
sdp_io_write(sd, 0 xad, 0 x04);
sdp_io_write(sd, 0 xae, 0 x04);
sdp_io_write(sd, 0 xaf, 0 x04);
}
}
static int adv7842_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
{
struct adv7842_state *state = to_state(sd);
struct adv7842_platform_data *pdata = &state->pdata;
v4l2_dbg(1 , debug, sd, "%s:\n" , __func__);
if (state->mode != ADV7842_MODE_SDP)
return -ENODATA;
if (norm & V4L2_STD_625_50)
adv7842_s_sdp_io(sd, &pdata->sdp_io_sync_625);
else if (norm & V4L2_STD_525_60)
adv7842_s_sdp_io(sd, &pdata->sdp_io_sync_525);
else
adv7842_s_sdp_io(sd, NULL);
if (norm & V4L2_STD_ALL) {
state->norm = norm;
return 0 ;
}
return -EINVAL;
}
static int adv7842_g_std(struct v4l2_subdev *sd, v4l2_std_id *norm)
{
struct adv7842_state *state = to_state(sd);
v4l2_dbg(1 , debug, sd, "%s:\n" , __func__);
if (state->mode != ADV7842_MODE_SDP)
return -ENODATA;
*norm = state->norm;
return 0 ;
}
/* ----------------------------------------------------------------------- */
static int adv7842_core_init(struct v4l2_subdev *sd)
{
struct adv7842_state *state = to_state(sd);
struct adv7842_platform_data *pdata = &state->pdata;
hdmi_write(sd, 0 x48,
(pdata->disable_pwrdnb ? 0 x80 : 0 ) |
(pdata->disable_cable_det_rst ? 0 x40 : 0 ));
disable_input(sd);
/*
* Disable I2C access to internal EDID ram from HDMI DDC ports
* Disable auto edid enable when leaving powerdown mode
*/
rep_write_and_or(sd, 0 x77, 0 xd3, 0 x20);
/* power */
io_write(sd, 0 x0c, 0 x42); /* Power up part and power down VDP */
io_write(sd, 0 x15, 0 x80); /* Power up pads */
/* video format */
io_write(sd, 0 x02, 0 xf0 | pdata->alt_gamma << 3 );
io_write_and_or(sd, 0 x05, 0 xf0, pdata->blank_data << 3 |
pdata->insert_av_codes << 2 |
pdata->replicate_av_codes << 1 );
adv7842_setup_format(state);
/* HDMI audio */
hdmi_write_and_or(sd, 0 x1a, 0 xf1, 0 x08); /* Wait 1 s before unmute */
/* Drive strength */
io_write_and_or(sd, 0 x14, 0 xc0,
pdata->dr_str_data << 4 |
pdata->dr_str_clk << 2 |
pdata->dr_str_sync);
/* HDMI free run */
cp_write_and_or(sd, 0 xba, 0 xfc, pdata->hdmi_free_run_enable |
(pdata->hdmi_free_run_mode << 1 ));
/* SPD free run */
sdp_write_and_or(sd, 0 xdd, 0 xf0, pdata->sdp_free_run_force |
(pdata->sdp_free_run_cbar_en << 1 ) |
(pdata->sdp_free_run_man_col_en << 2 ) |
(pdata->sdp_free_run_auto << 3 ));
/* TODO from platform data */
cp_write(sd, 0 x69, 0 x14); /* Enable CP CSC */
io_write(sd, 0 x06, 0 xa6); /* positive VS and HS and DE */
cp_write(sd, 0 xf3, 0 xdc); /* Low threshold to enter/exit free run mode */
afe_write(sd, 0 xb5, 0 x01); /* Setting MCLK to 256Fs */
afe_write(sd, 0 x02, pdata->ain_sel); /* Select analog input muxing mode */
io_write_and_or(sd, 0 x30, ~(1 << 4 ), pdata->output_bus_lsb_to_msb << 4 );
sdp_csc_coeff(sd, &pdata->sdp_csc_coeff);
/* todo, improve settings for sdram */
if (pdata->sd_ram_size >= 128 ) {
sdp_write(sd, 0 x12, 0 x0d); /* Frame TBC,3D comb enabled */
if (pdata->sd_ram_ddr) {
/* SDP setup for the AD eval board */
sdp_io_write(sd, 0 x6f, 0 x00); /* DDR mode */
sdp_io_write(sd, 0 x75, 0 x0a); /* 128 MB memory size */
sdp_io_write(sd, 0 x7a, 0 xa5); /* Timing Adjustment */
sdp_io_write(sd, 0 x7b, 0 x8f); /* Timing Adjustment */
sdp_io_write(sd, 0 x60, 0 x01); /* SDRAM reset */
} else {
sdp_io_write(sd, 0 x75, 0 x0a); /* 64 MB memory size ?*/
sdp_io_write(sd, 0 x74, 0 x00); /* must be zero for sdr sdram */
sdp_io_write(sd, 0 x79, 0 x33); /* CAS latency to 3,
depends on memory */
sdp_io_write(sd, 0 x6f, 0 x01); /* SDR mode */
sdp_io_write(sd, 0 x7a, 0 xa5); /* Timing Adjustment */
sdp_io_write(sd, 0 x7b, 0 x8f); /* Timing Adjustment */
sdp_io_write(sd, 0 x60, 0 x01); /* SDRAM reset */
}
} else {
/*
* Manual UG-214, rev 0 is bit confusing on this bit
* but a '1' disables any signal if the Ram is active.
*/
sdp_io_write(sd, 0 x29, 0 x10); /* Tristate memory interface */
}
select_input(sd, pdata->vid_std_select);
enable_input(sd);
if (pdata->hpa_auto) {
/* HPA auto, HPA 0.5s after Edid set and Cable detect */
hdmi_write(sd, 0 x69, 0 x5c);
} else {
/* HPA manual */
hdmi_write(sd, 0 x69, 0 xa3);
/* HPA disable on port A and B */
io_write_and_or(sd, 0 x20, 0 xcf, 0 x00);
}
/* LLC */
io_write(sd, 0 x19, 0 x80 | pdata->llc_dll_phase);
io_write(sd, 0 x33, 0 x40);
/* interrupts */
io_write(sd, 0 x40, 0 xf2); /* Configure INT1 */
adv7842_irq_enable(sd, true );
return v4l2_ctrl_handler_setup(sd->ctrl_handler);
}
/* ----------------------------------------------------------------------- */
static int adv7842_ddr_ram_test(struct v4l2_subdev *sd)
{
/*
* From ADV784x external Memory test.pdf
*
* Reset must just been performed before running test.
* Recommended to reset after test.
*/
int i;
int pass = 0 ;
int fail = 0 ;
int complete = 0 ;
io_write(sd, 0 x00, 0 x01); /* Program SDP 4x1 */
io_write(sd, 0 x01, 0 x00); /* Program SDP mode */
afe_write(sd, 0 x80, 0 x92); /* SDP Recommended Write */
afe_write(sd, 0 x9B, 0 x01); /* SDP Recommended Write ADV7844ES1 */
afe_write(sd, 0 x9C, 0 x60); /* SDP Recommended Write ADV7844ES1 */
afe_write(sd, 0 x9E, 0 x02); /* SDP Recommended Write ADV7844ES1 */
afe_write(sd, 0 xA0, 0 x0B); /* SDP Recommended Write ADV7844ES1 */
afe_write(sd, 0 xC3, 0 x02); /* Memory BIST Initialisation */
io_write(sd, 0 x0C, 0 x40); /* Power up ADV7844 */
io_write(sd, 0 x15, 0 xBA); /* Enable outputs */
sdp_write(sd, 0 x12, 0 x00); /* Disable 3D comb, Frame TBC & 3DNR */
io_write(sd, 0 xFF, 0 x04); /* Reset memory controller */
usleep_range(5000 , 6000 );
sdp_write(sd, 0 x12, 0 x00); /* Disable 3D Comb, Frame TBC & 3DNR */
sdp_io_write(sd, 0 x2A, 0 x01); /* Memory BIST Initialisation */
sdp_io_write(sd, 0 x7c, 0 x19); /* Memory BIST Initialisation */
sdp_io_write(sd, 0 x80, 0 x87); /* Memory BIST Initialisation */
sdp_io_write(sd, 0 x81, 0 x4a); /* Memory BIST Initialisation */
sdp_io_write(sd, 0 x82, 0 x2c); /* Memory BIST Initialisation */
sdp_io_write(sd, 0 x83, 0 x0e); /* Memory BIST Initialisation */
sdp_io_write(sd, 0 x84, 0 x94); /* Memory BIST Initialisation */
sdp_io_write(sd, 0 x85, 0 x62); /* Memory BIST Initialisation */
sdp_io_write(sd, 0 x7d, 0 x00); /* Memory BIST Initialisation */
sdp_io_write(sd, 0 x7e, 0 x1a); /* Memory BIST Initialisation */
usleep_range(5000 , 6000 );
sdp_io_write(sd, 0 xd9, 0 xd5); /* Enable BIST Test */
sdp_write(sd, 0 x12, 0 x05); /* Enable FRAME TBC & 3D COMB */
msleep(20 );
for (i = 0 ; i < 10 ; i++) {
u8 result = sdp_io_read(sd, 0 xdb);
if (result & 0 x10) {
complete++;
if (result & 0 x20)
fail++;
else
pass++;
}
msleep(20 );
}
v4l2_dbg(1 , debug, sd,
"Ram Test: completed %d of %d: pass %d, fail %d\n" ,
complete, i, pass, fail);
if (!complete || fail)
return -EIO;
return 0 ;
}
static void adv7842_rewrite_i2c_addresses(struct v4l2_subdev *sd,
struct adv7842_platform_data *pdata)
{
io_write(sd, 0 xf1, pdata->i2c_sdp << 1 );
io_write(sd, 0 xf2, pdata->i2c_sdp_io << 1 );
io_write(sd, 0 xf3, pdata->i2c_avlink << 1 );
io_write(sd, 0 xf4, pdata->i2c_cec << 1 );
io_write(sd, 0 xf5, pdata->i2c_infoframe << 1 );
io_write(sd, 0 xf8, pdata->i2c_afe << 1 );
io_write(sd, 0 xf9, pdata->i2c_repeater << 1 );
io_write(sd, 0 xfa, pdata->i2c_edid << 1 );
io_write(sd, 0 xfb, pdata->i2c_hdmi << 1 );
io_write(sd, 0 xfd, pdata->i2c_cp << 1 );
io_write(sd, 0 xfe, pdata->i2c_vdp << 1 );
}
static int adv7842_command_ram_test(struct v4l2_subdev *sd)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct adv7842_state *state = to_state(sd);
struct adv7842_platform_data *pdata = client->dev.platform_data;
struct v4l2_dv_timings timings;
int ret = 0 ;
if (!pdata)
return -ENODEV;
if (!pdata->sd_ram_size || !pdata->sd_ram_ddr) {
v4l2_info(sd, "no sdram or no ddr sdram\n" );
return -EINVAL;
}
main_reset(sd);
adv7842_rewrite_i2c_addresses(sd, pdata);
/* run ram test */
ret = adv7842_ddr_ram_test(sd);
main_reset(sd);
adv7842_rewrite_i2c_addresses(sd, pdata);
/* and re-init chip and state */
adv7842_core_init(sd);
disable_input(sd);
select_input(sd, state->vid_std_select);
enable_input(sd);
edid_write_vga_segment(sd);
edid_write_hdmi_segment(sd, ADV7842_EDID_PORT_A);
edid_write_hdmi_segment(sd, ADV7842_EDID_PORT_B);
timings = state->timings;
memset(&state->timings, 0 , sizeof (struct v4l2_dv_timings));
adv7842_s_dv_timings(sd, 0 , &timings);
return ret;
}
static long adv7842_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
switch (cmd) {
case ADV7842_CMD_RAM_TEST:
return adv7842_command_ram_test(sd);
}
return -ENOTTY;
}
static int adv7842_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 ssize_t
adv7842_debugfs_if_read(u32 type, void *priv, struct file *filp,
char __user *ubuf, size_t count, loff_t *ppos)
{
u8 buf[V4L2_DEBUGFS_IF_MAX_LEN] = {};
struct v4l2_subdev *sd = priv;
int index;
int len;
if (!is_hdmi(sd))
return 0 ;
switch (type) {
case V4L2_DEBUGFS_IF_AVI:
index = 0 ;
break ;
case V4L2_DEBUGFS_IF_AUDIO:
index = 1 ;
break ;
case V4L2_DEBUGFS_IF_SPD:
index = 2 ;
break ;
case V4L2_DEBUGFS_IF_HDMI:
index = 3 ;
break ;
default :
return 0 ;
}
len = adv7842_read_infoframe_buf(sd, index, buf);
if (len > 0 )
len = simple_read_from_buffer(ubuf, count, ppos, buf, len);
return len < 0 ? 0 : len;
}
static int adv7842_registered(struct v4l2_subdev *sd)
{
struct adv7842_state *state = to_state(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
int err;
err = cec_register_adapter(state->cec_adap, &client->dev);
if (err) {
cec_delete_adapter(state->cec_adap);
} else {
state->debugfs_dir = debugfs_create_dir(sd->name, v4l2_debugfs_root());
state->infoframes = v4l2_debugfs_if_alloc(state->debugfs_dir,
V4L2_DEBUGFS_IF_AVI | V4L2_DEBUGFS_IF_AUDIO |
V4L2_DEBUGFS_IF_SPD | V4L2_DEBUGFS_IF_HDMI, sd,
adv7842_debugfs_if_read);
}
return err;
}
static void adv7842_unregistered(struct v4l2_subdev *sd)
{
struct adv7842_state *state = to_state(sd);
cec_unregister_adapter(state->cec_adap);
v4l2_debugfs_if_free(state->infoframes);
state->infoframes = NULL;
debugfs_remove_recursive(state->debugfs_dir);
state->debugfs_dir = NULL;
}
/* ----------------------------------------------------------------------- */
static const struct v4l2_ctrl_ops adv7842_ctrl_ops = {
.s_ctrl = adv7842_s_ctrl,
.g_volatile_ctrl = adv7842_g_volatile_ctrl,
};
static const struct v4l2_subdev_core_ops adv7842_core_ops = {
.log_status = adv7842_log_status,
.ioctl = adv7842_ioctl,
.interrupt_service_routine = adv7842_isr,
.subscribe_event = adv7842_subscribe_event,
.unsubscribe_event = v4l2_event_subdev_unsubscribe,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = adv7842_g_register,
.s_register = adv7842_s_register,
#endif
};
static const struct v4l2_subdev_video_ops adv7842_video_ops = {
.g_std = adv7842_g_std,
.s_std = adv7842_s_std,
.s_routing = adv7842_s_routing,
.querystd = adv7842_querystd,
.g_input_status = adv7842_g_input_status,
};
static const struct v4l2_subdev_pad_ops adv7842_pad_ops = {
.enum_mbus_code = adv7842_enum_mbus_code,
.get_fmt = adv7842_get_format,
.set_fmt = adv7842_set_format,
.get_edid = adv7842_get_edid,
.set_edid = adv7842_set_edid,
.s_dv_timings = adv7842_s_dv_timings,
.g_dv_timings = adv7842_g_dv_timings,
.query_dv_timings = adv7842_query_dv_timings,
.enum_dv_timings = adv7842_enum_dv_timings,
.dv_timings_cap = adv7842_dv_timings_cap,
};
static const struct v4l2_subdev_ops adv7842_ops = {
.core = &adv7842_core_ops,
.video = &adv7842_video_ops,
.pad = &adv7842_pad_ops,
};
static const struct v4l2_subdev_internal_ops adv7842_int_ops = {
.registered = adv7842_registered,
.unregistered = adv7842_unregistered,
};
/* -------------------------- custom ctrls ---------------------------------- */
static const struct v4l2_ctrl_config adv7842_ctrl_analog_sampling_phase = {
.ops = &adv7842_ctrl_ops,
.id = V4L2_CID_ADV_RX_ANALOG_SAMPLING_PHASE,
.name = "Analog Sampling Phase" ,
.type = V4L2_CTRL_TYPE_INTEGER,
.min = 0 ,
.max = 0 x1f,
.step = 1 ,
.def = 0 ,
};
static const struct v4l2_ctrl_config adv7842_ctrl_free_run_color_manual = {
.ops = &adv7842_ctrl_ops,
.id = V4L2_CID_ADV_RX_FREE_RUN_COLOR_MANUAL,
.name = "Free Running Color, Manual" ,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.max = 1 ,
.step = 1 ,
.def = 1 ,
};
static const struct v4l2_ctrl_config adv7842_ctrl_free_run_color = {
.ops = &adv7842_ctrl_ops,
.id = V4L2_CID_ADV_RX_FREE_RUN_COLOR,
.name = "Free Running Color" ,
.type = V4L2_CTRL_TYPE_INTEGER,
.max = 0 xffffff,
.step = 0 x1,
};
static void adv7842_unregister_clients(struct v4l2_subdev *sd)
{
struct adv7842_state *state = to_state(sd);
i2c_unregister_device(state->i2c_avlink);
i2c_unregister_device(state->i2c_cec);
i2c_unregister_device(state->i2c_infoframe);
i2c_unregister_device(state->i2c_sdp_io);
i2c_unregister_device(state->i2c_sdp);
i2c_unregister_device(state->i2c_afe);
i2c_unregister_device(state->i2c_repeater);
i2c_unregister_device(state->i2c_edid);
i2c_unregister_device(state->i2c_hdmi);
i2c_unregister_device(state->i2c_cp);
i2c_unregister_device(state->i2c_vdp);
state->i2c_avlink = NULL;
state->i2c_cec = NULL;
state->i2c_infoframe = NULL;
state->i2c_sdp_io = NULL;
state->i2c_sdp = NULL;
state->i2c_afe = NULL;
state->i2c_repeater = NULL;
state->i2c_edid = NULL;
state->i2c_hdmi = NULL;
state->i2c_cp = NULL;
state->i2c_vdp = NULL;
}
static struct i2c_client *adv7842_dummy_client(struct v4l2_subdev *sd, const char *desc,
u8 addr, u8 io_reg)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct i2c_client *cp;
io_write(sd, io_reg, addr << 1 );
if (addr == 0 ) {
v4l2_err(sd, "no %s i2c addr configured\n" , desc);
return NULL;
}
cp = i2c_new_dummy_device(client->adapter, io_read(sd, io_reg) >> 1 );
if (IS_ERR(cp)) {
v4l2_err(sd, "register %s on i2c addr 0x%x failed with %ld\n" ,
desc, addr, PTR_ERR(cp));
cp = NULL;
}
return cp;
}
static int adv7842_register_clients(struct v4l2_subdev *sd)
{
struct adv7842_state *state = to_state(sd);
struct adv7842_platform_data *pdata = &state->pdata;
state->i2c_avlink = adv7842_dummy_client(sd, "avlink" , pdata->i2c_avlink, 0 xf3);
state->i2c_cec = adv7842_dummy_client(sd, "cec" , pdata->i2c_cec, 0 xf4);
state->i2c_infoframe = adv7842_dummy_client(sd, "infoframe" , pdata->i2c_infoframe, 0 xf5);
state->i2c_sdp_io = adv7842_dummy_client(sd, "sdp_io" , pdata->i2c_sdp_io, 0 xf2);
state->i2c_sdp = adv7842_dummy_client(sd, "sdp" , pdata->i2c_sdp, 0 xf1);
state->i2c_afe = adv7842_dummy_client(sd, "afe" , pdata->i2c_afe, 0 xf8);
state->i2c_repeater = adv7842_dummy_client(sd, "repeater" , pdata->i2c_repeater, 0 xf9);
state->i2c_edid = adv7842_dummy_client(sd, "edid" , pdata->i2c_edid, 0 xfa);
state->i2c_hdmi = adv7842_dummy_client(sd, "hdmi" , pdata->i2c_hdmi, 0 xfb);
state->i2c_cp = adv7842_dummy_client(sd, "cp" , pdata->i2c_cp, 0 xfd);
state->i2c_vdp = adv7842_dummy_client(sd, "vdp" , pdata->i2c_vdp, 0 xfe);
if (!state->i2c_avlink ||
!state->i2c_cec ||
!state->i2c_infoframe ||
!state->i2c_sdp_io ||
!state->i2c_sdp ||
!state->i2c_afe ||
!state->i2c_repeater ||
!state->i2c_edid ||
!state->i2c_hdmi ||
!state->i2c_cp ||
!state->i2c_vdp)
return -1 ;
return 0 ;
}
static int adv7842_probe(struct i2c_client *client)
{
struct adv7842_state *state;
static const struct v4l2_dv_timings cea640x480 =
V4L2_DV_BT_CEA_640X480P59_94;
struct adv7842_platform_data *pdata = client->dev.platform_data;
struct v4l2_ctrl_handler *hdl;
struct v4l2_ctrl *ctrl;
struct v4l2_subdev *sd;
unsigned int i;
u16 rev;
int err;
/* Check if the adapter supports the needed features */
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -EIO;
v4l_dbg(1 , debug, client, "detecting adv7842 client on address 0x%x\n" ,
client->addr << 1 );
if (!pdata) {
v4l_err(client, "No platform data!\n" );
return -ENODEV;
}
state = devm_kzalloc(&client->dev, sizeof (*state), GFP_KERNEL);
if (!state)
return -ENOMEM;
/* platform data */
state->pdata = *pdata;
state->timings = cea640x480;
state->format = adv7842_format_info(state, MEDIA_BUS_FMT_YUYV8_2X8);
sd = &state->sd;
v4l2_i2c_subdev_init(sd, client, &adv7842_ops);
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS;
sd->internal_ops = &adv7842_int_ops;
state->mode = pdata->mode;
state->hdmi_port_a = pdata->input == ADV7842_SELECT_HDMI_PORT_A;
state->restart_stdi_once = true ;
/* i2c access to adv7842? */
rev = adv_smbus_read_byte_data_check(client, 0 xea, false ) << 8 |
adv_smbus_read_byte_data_check(client, 0 xeb, false );
if (rev != 0 x2012) {
v4l2_info(sd, "got rev=0x%04x on first read attempt\n" , rev);
rev = adv_smbus_read_byte_data_check(client, 0 xea, false ) << 8 |
adv_smbus_read_byte_data_check(client, 0 xeb, false );
}
if (rev != 0 x2012) {
v4l2_info(sd, "not an adv7842 on address 0x%x (rev=0x%04x)\n" ,
client->addr << 1 , rev);
return -ENODEV;
}
if (pdata->chip_reset)
main_reset(sd);
/* control handlers */
hdl = &state->hdl;
v4l2_ctrl_handler_init(hdl, 6 );
/* add in ascending ID order */
v4l2_ctrl_new_std(hdl, &adv7842_ctrl_ops,
V4L2_CID_BRIGHTNESS, -128 , 127 , 1 , 0 );
v4l2_ctrl_new_std(hdl, &adv7842_ctrl_ops,
V4L2_CID_CONTRAST, 0 , 255 , 1 , 128 );
v4l2_ctrl_new_std(hdl, &adv7842_ctrl_ops,
V4L2_CID_SATURATION, 0 , 255 , 1 , 128 );
v4l2_ctrl_new_std(hdl, &adv7842_ctrl_ops,
V4L2_CID_HUE, 0 , 128 , 1 , 0 );
ctrl = v4l2_ctrl_new_std_menu(hdl, &adv7842_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 , 3 , 0 , 0 );
state->analog_sampling_phase_ctrl = v4l2_ctrl_new_custom(hdl,
&adv7842_ctrl_analog_sampling_phase, NULL);
state->free_run_color_ctrl_manual = v4l2_ctrl_new_custom(hdl,
&adv7842_ctrl_free_run_color_manual, NULL);
state->free_run_color_ctrl = v4l2_ctrl_new_custom(hdl,
&adv7842_ctrl_free_run_color, NULL);
state->rgb_quantization_range_ctrl =
v4l2_ctrl_new_std_menu(hdl, &adv7842_ctrl_ops,
V4L2_CID_DV_RX_RGB_RANGE, V4L2_DV_RGB_RANGE_FULL,
0 , V4L2_DV_RGB_RANGE_AUTO);
sd->ctrl_handler = hdl;
if (hdl->error) {
err = hdl->error;
goto err_hdl;
}
if (adv7842_s_detect_tx_5v_ctrl(sd)) {
err = -ENODEV;
goto err_hdl;
}
if (adv7842_register_clients(sd) < 0 ) {
err = -ENOMEM;
v4l2_err(sd, "failed to create all i2c clients\n" );
goto err_i2c;
}
INIT_DELAYED_WORK(&state->delayed_work_enable_hotplug,
adv7842_delayed_work_enable_hotplug);
sd->entity.function = MEDIA_ENT_F_DV_DECODER;
for (i = 0 ; i < ADV7842_PAD_SOURCE; ++i)
state->pads[i].flags = MEDIA_PAD_FL_SINK;
state->pads[ADV7842_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
err = media_entity_pads_init(&sd->entity, ADV7842_PAD_SOURCE + 1 ,
state->pads);
if (err)
goto err_work_queues;
err = adv7842_core_init(sd);
if (err)
goto err_entity;
#if IS_ENABLED(CONFIG_VIDEO_ADV7842_CEC)
state->cec_adap = cec_allocate_adapter(&adv7842_cec_adap_ops,
state, dev_name(&client->dev),
CEC_CAP_DEFAULTS, ADV7842_MAX_ADDRS);
err = PTR_ERR_OR_ZERO(state->cec_adap);
if (err)
goto err_entity;
#endif
v4l2_info(sd, "%s found @ 0x%x (%s)\n" , client->name,
client->addr << 1 , client->adapter->name);
return 0 ;
err_entity:
media_entity_cleanup(&sd->entity);
err_work_queues:
cancel_delayed_work(&state->delayed_work_enable_hotplug);
err_i2c:
adv7842_unregister_clients(sd);
err_hdl:
v4l2_ctrl_handler_free(hdl);
return err;
}
/* ----------------------------------------------------------------------- */
static void adv7842_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct adv7842_state *state = to_state(sd);
adv7842_irq_enable(sd, false );
cancel_delayed_work_sync(&state->delayed_work_enable_hotplug);
v4l2_device_unregister_subdev(sd);
media_entity_cleanup(&sd->entity);
adv7842_unregister_clients(sd);
v4l2_ctrl_handler_free(sd->ctrl_handler);
}
/* ----------------------------------------------------------------------- */
static const struct i2c_device_id adv7842_id[] = {
{ "adv7842" },
{ }
};
MODULE_DEVICE_TABLE(i2c, adv7842_id);
/* ----------------------------------------------------------------------- */
static struct i2c_driver adv7842_driver = {
.driver = {
.name = "adv7842" ,
},
.probe = adv7842_probe,
.remove = adv7842_remove,
.id_table = adv7842_id,
};
module_i2c_driver(adv7842_driver);
Messung V0.5 in Prozent C=93 H=93 G=92
¤ Dauer der Verarbeitung: 0.46 Sekunden
(vorverarbeitet am 2026-06-08)
¤
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