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linux/drivers/media/i2c/adv7604.c
Lars-Peter Clausen c41ad9c38e [media] adv7604: Update recommended writes for the adv7611 
Update the recommended writes to those mentioned in the Rev 1.5 version of the
ADV7611 Register Settings Recommendations document released by Analog Devices.
The document does not mention why the recommended settings have been updated,
but presumably those are more fine tuned settings that can enhance performance
in some cases.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-04 16:13:57 -03:00

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/*
* adv7604 - Analog Devices ADV7604 video decoder driver
*
* Copyright 2012 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
*
* This program is free software; you may redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
/*
* References (c = chapter, p = page):
* REF_01 - Analog devices, ADV7604, Register Settings Recommendations,
* Revision 2.5, June 2010
* REF_02 - Analog devices, Register map documentation, Documentation of
* the register maps, Software manual, Rev. F, June 2010
* REF_03 - Analog devices, ADV7604, Hardware Manual, Rev. F, August 2010
*/
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/v4l2-dv-timings.h>
#include <linux/videodev2.h>
#include <linux/workqueue.h>
#include <media/adv7604.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-dv-timings.h>
#include <media/v4l2-of.h>
static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "debug level (0-2)");
MODULE_DESCRIPTION("Analog Devices ADV7604 video decoder driver");
MODULE_AUTHOR("Hans Verkuil <hans.verkuil@cisco.com>");
MODULE_AUTHOR("Mats Randgaard <mats.randgaard@cisco.com>");
MODULE_LICENSE("GPL");
/* ADV7604 system clock frequency */
#define ADV7604_fsc (28636360)
#define ADV7604_RGB_OUT (1 << 1)
#define ADV7604_OP_FORMAT_SEL_8BIT (0 << 0)
#define ADV7604_OP_FORMAT_SEL_10BIT (1 << 0)
#define ADV7604_OP_FORMAT_SEL_12BIT (2 << 0)
#define ADV7604_OP_MODE_SEL_SDR_422 (0 << 5)
#define ADV7604_OP_MODE_SEL_DDR_422 (1 << 5)
#define ADV7604_OP_MODE_SEL_SDR_444 (2 << 5)
#define ADV7604_OP_MODE_SEL_DDR_444 (3 << 5)
#define ADV7604_OP_MODE_SEL_SDR_422_2X (4 << 5)
#define ADV7604_OP_MODE_SEL_ADI_CM (5 << 5)
#define ADV7604_OP_CH_SEL_GBR (0 << 5)
#define ADV7604_OP_CH_SEL_GRB (1 << 5)
#define ADV7604_OP_CH_SEL_BGR (2 << 5)
#define ADV7604_OP_CH_SEL_RGB (3 << 5)
#define ADV7604_OP_CH_SEL_BRG (4 << 5)
#define ADV7604_OP_CH_SEL_RBG (5 << 5)
#define ADV7604_OP_SWAP_CB_CR (1 << 0)
enum adv7604_type {
ADV7604,
ADV7611,
};
struct adv7604_reg_seq {
unsigned int reg;
u8 val;
};
struct adv7604_format_info {
enum v4l2_mbus_pixelcode code;
u8 op_ch_sel;
bool rgb_out;
bool swap_cb_cr;
u8 op_format_sel;
};
struct adv7604_chip_info {
enum adv7604_type type;
bool has_afe;
unsigned int max_port;
unsigned int num_dv_ports;
unsigned int edid_enable_reg;
unsigned int edid_status_reg;
unsigned int lcf_reg;
unsigned int cable_det_mask;
unsigned int tdms_lock_mask;
unsigned int fmt_change_digital_mask;
const struct adv7604_format_info *formats;
unsigned int nformats;
void (*set_termination)(struct v4l2_subdev *sd, bool enable);
void (*setup_irqs)(struct v4l2_subdev *sd);
unsigned int (*read_hdmi_pixelclock)(struct v4l2_subdev *sd);
unsigned int (*read_cable_det)(struct v4l2_subdev *sd);
/* 0 = AFE, 1 = HDMI */
const struct adv7604_reg_seq *recommended_settings[2];
unsigned int num_recommended_settings[2];
unsigned long page_mask;
};
/*
**********************************************************************
*
* Arrays with configuration parameters for the ADV7604
*
**********************************************************************
*/
struct adv7604_state {
const struct adv7604_chip_info *info;
struct adv7604_platform_data pdata;
struct gpio_desc *hpd_gpio[4];
struct v4l2_subdev sd;
struct media_pad pads[ADV7604_PAD_MAX];
unsigned int source_pad;
struct v4l2_ctrl_handler hdl;
enum adv7604_pad selected_input;
struct v4l2_dv_timings timings;
const struct adv7604_format_info *format;
struct {
u8 edid[256];
u32 present;
unsigned blocks;
} edid;
u16 spa_port_a[2];
struct v4l2_fract aspect_ratio;
u32 rgb_quantization_range;
struct workqueue_struct *work_queues;
struct delayed_work delayed_work_enable_hotplug;
bool restart_stdi_once;
/* i2c clients */
struct i2c_client *i2c_clients[ADV7604_PAGE_MAX];
/* controls */
struct v4l2_ctrl *detect_tx_5v_ctrl;
struct v4l2_ctrl *analog_sampling_phase_ctrl;
struct v4l2_ctrl *free_run_color_manual_ctrl;
struct v4l2_ctrl *free_run_color_ctrl;
struct v4l2_ctrl *rgb_quantization_range_ctrl;
};
static bool adv7604_has_afe(struct adv7604_state *state)
{
return state->info->has_afe;
}
/* Supported CEA and DMT timings */
static const struct v4l2_dv_timings adv7604_timings[] = {
V4L2_DV_BT_CEA_720X480P59_94,
V4L2_DV_BT_CEA_720X576P50,
V4L2_DV_BT_CEA_1280X720P24,
V4L2_DV_BT_CEA_1280X720P25,
V4L2_DV_BT_CEA_1280X720P50,
V4L2_DV_BT_CEA_1280X720P60,
V4L2_DV_BT_CEA_1920X1080P24,
V4L2_DV_BT_CEA_1920X1080P25,
V4L2_DV_BT_CEA_1920X1080P30,
V4L2_DV_BT_CEA_1920X1080P50,
V4L2_DV_BT_CEA_1920X1080P60,
/* sorted by DMT ID */
V4L2_DV_BT_DMT_640X350P85,
V4L2_DV_BT_DMT_640X400P85,
V4L2_DV_BT_DMT_720X400P85,
V4L2_DV_BT_DMT_640X480P60,
V4L2_DV_BT_DMT_640X480P72,
V4L2_DV_BT_DMT_640X480P75,
V4L2_DV_BT_DMT_640X480P85,
V4L2_DV_BT_DMT_800X600P56,
V4L2_DV_BT_DMT_800X600P60,
V4L2_DV_BT_DMT_800X600P72,
V4L2_DV_BT_DMT_800X600P75,
V4L2_DV_BT_DMT_800X600P85,
V4L2_DV_BT_DMT_848X480P60,
V4L2_DV_BT_DMT_1024X768P60,
V4L2_DV_BT_DMT_1024X768P70,
V4L2_DV_BT_DMT_1024X768P75,
V4L2_DV_BT_DMT_1024X768P85,
V4L2_DV_BT_DMT_1152X864P75,
V4L2_DV_BT_DMT_1280X768P60_RB,
V4L2_DV_BT_DMT_1280X768P60,
V4L2_DV_BT_DMT_1280X768P75,
V4L2_DV_BT_DMT_1280X768P85,
V4L2_DV_BT_DMT_1280X800P60_RB,
V4L2_DV_BT_DMT_1280X800P60,
V4L2_DV_BT_DMT_1280X800P75,
V4L2_DV_BT_DMT_1280X800P85,
V4L2_DV_BT_DMT_1280X960P60,
V4L2_DV_BT_DMT_1280X960P85,
V4L2_DV_BT_DMT_1280X1024P60,
V4L2_DV_BT_DMT_1280X1024P75,
V4L2_DV_BT_DMT_1280X1024P85,
V4L2_DV_BT_DMT_1360X768P60,
V4L2_DV_BT_DMT_1400X1050P60_RB,
V4L2_DV_BT_DMT_1400X1050P60,
V4L2_DV_BT_DMT_1400X1050P75,
V4L2_DV_BT_DMT_1400X1050P85,
V4L2_DV_BT_DMT_1440X900P60_RB,
V4L2_DV_BT_DMT_1440X900P60,
V4L2_DV_BT_DMT_1600X1200P60,
V4L2_DV_BT_DMT_1680X1050P60_RB,
V4L2_DV_BT_DMT_1680X1050P60,
V4L2_DV_BT_DMT_1792X1344P60,
V4L2_DV_BT_DMT_1856X1392P60,
V4L2_DV_BT_DMT_1920X1200P60_RB,
V4L2_DV_BT_DMT_1366X768P60_RB,
V4L2_DV_BT_DMT_1366X768P60,
V4L2_DV_BT_DMT_1920X1080P60,
{ },
};
struct adv7604_video_standards {
struct v4l2_dv_timings timings;
u8 vid_std;
u8 v_freq;
};
/* sorted by number of lines */
static const struct adv7604_video_standards adv7604_prim_mode_comp[] = {
/* { V4L2_DV_BT_CEA_720X480P59_94, 0x0a, 0x00 }, TODO flickering */
{ V4L2_DV_BT_CEA_720X576P50, 0x0b, 0x00 },
{ V4L2_DV_BT_CEA_1280X720P50, 0x19, 0x01 },
{ V4L2_DV_BT_CEA_1280X720P60, 0x19, 0x00 },
{ V4L2_DV_BT_CEA_1920X1080P24, 0x1e, 0x04 },
{ V4L2_DV_BT_CEA_1920X1080P25, 0x1e, 0x03 },
{ V4L2_DV_BT_CEA_1920X1080P30, 0x1e, 0x02 },
{ V4L2_DV_BT_CEA_1920X1080P50, 0x1e, 0x01 },
{ V4L2_DV_BT_CEA_1920X1080P60, 0x1e, 0x00 },
/* TODO add 1920x1080P60_RB (CVT timing) */
{ },
};
/* sorted by number of lines */
static const struct adv7604_video_standards adv7604_prim_mode_gr[] = {
{ V4L2_DV_BT_DMT_640X480P60, 0x08, 0x00 },
{ V4L2_DV_BT_DMT_640X480P72, 0x09, 0x00 },
{ V4L2_DV_BT_DMT_640X480P75, 0x0a, 0x00 },
{ V4L2_DV_BT_DMT_640X480P85, 0x0b, 0x00 },
{ V4L2_DV_BT_DMT_800X600P56, 0x00, 0x00 },
{ V4L2_DV_BT_DMT_800X600P60, 0x01, 0x00 },
{ V4L2_DV_BT_DMT_800X600P72, 0x02, 0x00 },
{ V4L2_DV_BT_DMT_800X600P75, 0x03, 0x00 },
{ V4L2_DV_BT_DMT_800X600P85, 0x04, 0x00 },
{ V4L2_DV_BT_DMT_1024X768P60, 0x0c, 0x00 },
{ V4L2_DV_BT_DMT_1024X768P70, 0x0d, 0x00 },
{ V4L2_DV_BT_DMT_1024X768P75, 0x0e, 0x00 },
{ V4L2_DV_BT_DMT_1024X768P85, 0x0f, 0x00 },
{ V4L2_DV_BT_DMT_1280X1024P60, 0x05, 0x00 },
{ V4L2_DV_BT_DMT_1280X1024P75, 0x06, 0x00 },
{ V4L2_DV_BT_DMT_1360X768P60, 0x12, 0x00 },
{ V4L2_DV_BT_DMT_1366X768P60, 0x13, 0x00 },
{ V4L2_DV_BT_DMT_1400X1050P60, 0x14, 0x00 },
{ V4L2_DV_BT_DMT_1400X1050P75, 0x15, 0x00 },
{ V4L2_DV_BT_DMT_1600X1200P60, 0x16, 0x00 }, /* TODO not tested */
/* TODO add 1600X1200P60_RB (not a DMT timing) */
{ V4L2_DV_BT_DMT_1680X1050P60, 0x18, 0x00 },
{ V4L2_DV_BT_DMT_1920X1200P60_RB, 0x19, 0x00 }, /* TODO not tested */
{ },
};
/* sorted by number of lines */
static const struct adv7604_video_standards adv7604_prim_mode_hdmi_comp[] = {
{ V4L2_DV_BT_CEA_720X480P59_94, 0x0a, 0x00 },
{ V4L2_DV_BT_CEA_720X576P50, 0x0b, 0x00 },
{ V4L2_DV_BT_CEA_1280X720P50, 0x13, 0x01 },
{ V4L2_DV_BT_CEA_1280X720P60, 0x13, 0x00 },
{ V4L2_DV_BT_CEA_1920X1080P24, 0x1e, 0x04 },
{ V4L2_DV_BT_CEA_1920X1080P25, 0x1e, 0x03 },
{ V4L2_DV_BT_CEA_1920X1080P30, 0x1e, 0x02 },
{ V4L2_DV_BT_CEA_1920X1080P50, 0x1e, 0x01 },
{ V4L2_DV_BT_CEA_1920X1080P60, 0x1e, 0x00 },
{ },
};
/* sorted by number of lines */
static const struct adv7604_video_standards adv7604_prim_mode_hdmi_gr[] = {
{ V4L2_DV_BT_DMT_640X480P60, 0x08, 0x00 },
{ V4L2_DV_BT_DMT_640X480P72, 0x09, 0x00 },
{ V4L2_DV_BT_DMT_640X480P75, 0x0a, 0x00 },
{ V4L2_DV_BT_DMT_640X480P85, 0x0b, 0x00 },
{ V4L2_DV_BT_DMT_800X600P56, 0x00, 0x00 },
{ V4L2_DV_BT_DMT_800X600P60, 0x01, 0x00 },
{ V4L2_DV_BT_DMT_800X600P72, 0x02, 0x00 },
{ V4L2_DV_BT_DMT_800X600P75, 0x03, 0x00 },
{ V4L2_DV_BT_DMT_800X600P85, 0x04, 0x00 },
{ V4L2_DV_BT_DMT_1024X768P60, 0x0c, 0x00 },
{ V4L2_DV_BT_DMT_1024X768P70, 0x0d, 0x00 },
{ V4L2_DV_BT_DMT_1024X768P75, 0x0e, 0x00 },
{ V4L2_DV_BT_DMT_1024X768P85, 0x0f, 0x00 },
{ V4L2_DV_BT_DMT_1280X1024P60, 0x05, 0x00 },
{ V4L2_DV_BT_DMT_1280X1024P75, 0x06, 0x00 },
{ },
};
/* ----------------------------------------------------------------------- */
static inline struct adv7604_state *to_state(struct v4l2_subdev *sd)
{
return container_of(sd, struct adv7604_state, sd);
}
static inline unsigned hblanking(const struct v4l2_bt_timings *t)
{
return V4L2_DV_BT_BLANKING_WIDTH(t);
}
static inline unsigned htotal(const struct v4l2_bt_timings *t)
{
return V4L2_DV_BT_FRAME_WIDTH(t);
}
static inline unsigned vblanking(const struct v4l2_bt_timings *t)
{
return V4L2_DV_BT_BLANKING_HEIGHT(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 adv7604_state *state,
enum adv7604_page page, u8 command)
{
return adv_smbus_read_byte_data_check(state->i2c_clients[page],
command, true);
}
static s32 adv_smbus_write_byte_data(struct adv7604_state *state,
enum adv7604_page page, u8 command,
u8 value)
{
struct i2c_client *client = state->i2c_clients[page];
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 s32 adv_smbus_write_i2c_block_data(struct adv7604_state *state,
enum adv7604_page page, u8 command,
unsigned length, const u8 *values)
{
struct i2c_client *client = state->i2c_clients[page];
union i2c_smbus_data data;
if (length > I2C_SMBUS_BLOCK_MAX)
length = I2C_SMBUS_BLOCK_MAX;
data.block[0] = length;
memcpy(data.block + 1, values, length);
return i2c_smbus_xfer(client->adapter, client->addr, client->flags,
I2C_SMBUS_WRITE, command,
I2C_SMBUS_I2C_BLOCK_DATA, &data);
}
/* ----------------------------------------------------------------------- */
static inline int io_read(struct v4l2_subdev *sd, u8 reg)
{
struct adv7604_state *state = to_state(sd);
return adv_smbus_read_byte_data(state, ADV7604_PAGE_IO, reg);
}
static inline int io_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7604_state *state = to_state(sd);
return adv_smbus_write_byte_data(state, ADV7604_PAGE_IO, reg, 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 adv7604_state *state = to_state(sd);
return adv_smbus_read_byte_data(state, ADV7604_PAGE_AVLINK, reg);
}
static inline int avlink_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7604_state *state = to_state(sd);
return adv_smbus_write_byte_data(state, ADV7604_PAGE_AVLINK, reg, val);
}
static inline int cec_read(struct v4l2_subdev *sd, u8 reg)
{
struct adv7604_state *state = to_state(sd);
return adv_smbus_read_byte_data(state, ADV7604_PAGE_CEC, reg);
}
static inline int cec_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7604_state *state = to_state(sd);
return adv_smbus_write_byte_data(state, ADV7604_PAGE_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 adv7604_state *state = to_state(sd);
return adv_smbus_read_byte_data(state, ADV7604_PAGE_INFOFRAME, reg);
}
static inline int infoframe_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7604_state *state = to_state(sd);
return adv_smbus_write_byte_data(state, ADV7604_PAGE_INFOFRAME,
reg, val);
}
static inline int esdp_read(struct v4l2_subdev *sd, u8 reg)
{
struct adv7604_state *state = to_state(sd);
return adv_smbus_read_byte_data(state, ADV7604_PAGE_ESDP, reg);
}
static inline int esdp_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7604_state *state = to_state(sd);
return adv_smbus_write_byte_data(state, ADV7604_PAGE_ESDP, reg, val);
}
static inline int dpp_read(struct v4l2_subdev *sd, u8 reg)
{
struct adv7604_state *state = to_state(sd);
return adv_smbus_read_byte_data(state, ADV7604_PAGE_DPP, reg);
}
static inline int dpp_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7604_state *state = to_state(sd);
return adv_smbus_write_byte_data(state, ADV7604_PAGE_DPP, reg, val);
}
static inline int afe_read(struct v4l2_subdev *sd, u8 reg)
{
struct adv7604_state *state = to_state(sd);
return adv_smbus_read_byte_data(state, ADV7604_PAGE_AFE, reg);
}
static inline int afe_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7604_state *state = to_state(sd);
return adv_smbus_write_byte_data(state, ADV7604_PAGE_AFE, reg, val);
}
static inline int rep_read(struct v4l2_subdev *sd, u8 reg)
{
struct adv7604_state *state = to_state(sd);
return adv_smbus_read_byte_data(state, ADV7604_PAGE_REP, reg);
}
static inline int rep_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7604_state *state = to_state(sd);
return adv_smbus_write_byte_data(state, ADV7604_PAGE_REP, reg, val);
}
static inline int rep_write_clr_set(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 adv7604_state *state = to_state(sd);
return adv_smbus_read_byte_data(state, ADV7604_PAGE_EDID, reg);
}
static inline int edid_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7604_state *state = to_state(sd);
return adv_smbus_write_byte_data(state, ADV7604_PAGE_EDID, reg, val);
}
static inline int edid_read_block(struct v4l2_subdev *sd, unsigned len, u8 *val)
{
struct adv7604_state *state = to_state(sd);
struct i2c_client *client = state->i2c_clients[ADV7604_PAGE_EDID];
u8 msgbuf0[1] = { 0 };
u8 msgbuf1[256];
struct i2c_msg msg[2] = {
{
.addr = client->addr,
.len = 1,
.buf = msgbuf0
},
{
.addr = client->addr,
.flags = I2C_M_RD,
.len = len,
.buf = msgbuf1
},
};
if (i2c_transfer(client->adapter, msg, 2) < 0)
return -EIO;
memcpy(val, msgbuf1, len);
return 0;
}
static inline int edid_write_block(struct v4l2_subdev *sd,
unsigned len, const u8 *val)
{
struct adv7604_state *state = to_state(sd);
int err = 0;
int i;
v4l2_dbg(2, debug, sd, "%s: write EDID block (%d byte)\n", __func__, len);
for (i = 0; !err && i < len; i += I2C_SMBUS_BLOCK_MAX)
err = adv_smbus_write_i2c_block_data(state, ADV7604_PAGE_EDID,
i, I2C_SMBUS_BLOCK_MAX, val + i);
return err;
}
static void adv7604_set_hpd(struct adv7604_state *state, unsigned int hpd)
{
unsigned int i;
for (i = 0; i < state->info->num_dv_ports; ++i) {
if (IS_ERR(state->hpd_gpio[i]))
continue;
gpiod_set_value_cansleep(state->hpd_gpio[i], hpd & BIT(i));
}
v4l2_subdev_notify(&state->sd, ADV7604_HOTPLUG, &hpd);
}
static void adv7604_delayed_work_enable_hotplug(struct work_struct *work)
{
struct delayed_work *dwork = to_delayed_work(work);
struct adv7604_state *state = container_of(dwork, struct adv7604_state,
delayed_work_enable_hotplug);
struct v4l2_subdev *sd = &state->sd;
v4l2_dbg(2, debug, sd, "%s: enable hotplug\n", __func__);
adv7604_set_hpd(state, state->edid.present);
}
static inline int hdmi_read(struct v4l2_subdev *sd, u8 reg)
{
struct adv7604_state *state = to_state(sd);
return adv_smbus_read_byte_data(state, ADV7604_PAGE_HDMI, reg);
}
static u16 hdmi_read16(struct v4l2_subdev *sd, u8 reg, u16 mask)
{
return ((hdmi_read(sd, reg) << 8) | hdmi_read(sd, reg + 1)) & mask;
}
static inline int hdmi_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7604_state *state = to_state(sd);
return adv_smbus_write_byte_data(state, ADV7604_PAGE_HDMI, reg, val);
}
static inline int hdmi_write_clr_set(struct v4l2_subdev *sd, u8 reg, u8 mask, u8 val)
{
return hdmi_write(sd, reg, (hdmi_read(sd, reg) & ~mask) | val);
}
static inline int test_read(struct v4l2_subdev *sd, u8 reg)
{
struct adv7604_state *state = to_state(sd);
return adv_smbus_read_byte_data(state, ADV7604_PAGE_TEST, reg);
}
static inline int test_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7604_state *state = to_state(sd);
return adv_smbus_write_byte_data(state, ADV7604_PAGE_TEST, reg, val);
}
static inline int cp_read(struct v4l2_subdev *sd, u8 reg)
{
struct adv7604_state *state = to_state(sd);
return adv_smbus_read_byte_data(state, ADV7604_PAGE_CP, reg);
}
static u16 cp_read16(struct v4l2_subdev *sd, u8 reg, u16 mask)
{
return ((cp_read(sd, reg) << 8) | cp_read(sd, reg + 1)) & mask;
}
static inline int cp_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7604_state *state = to_state(sd);
return adv_smbus_write_byte_data(state, ADV7604_PAGE_CP, reg, val);
}
static inline int cp_write_clr_set(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 adv7604_state *state = to_state(sd);
return adv_smbus_read_byte_data(state, ADV7604_PAGE_VDP, reg);
}
static inline int vdp_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
struct adv7604_state *state = to_state(sd);
return adv_smbus_write_byte_data(state, ADV7604_PAGE_VDP, reg, val);
}
#define ADV7604_REG(page, offset) (((page) << 8) | (offset))
#define ADV7604_REG_SEQ_TERM 0xffff
#ifdef CONFIG_VIDEO_ADV_DEBUG
static int adv7604_read_reg(struct v4l2_subdev *sd, unsigned int reg)
{
struct adv7604_state *state = to_state(sd);
unsigned int page = reg >> 8;
if (!(BIT(page) & state->info->page_mask))
return -EINVAL;
reg &= 0xff;
return adv_smbus_read_byte_data(state, page, reg);
}
#endif
static int adv7604_write_reg(struct v4l2_subdev *sd, unsigned int reg, u8 val)
{
struct adv7604_state *state = to_state(sd);
unsigned int page = reg >> 8;
if (!(BIT(page) & state->info->page_mask))
return -EINVAL;
reg &= 0xff;
return adv_smbus_write_byte_data(state, page, reg, val);
}
static void adv7604_write_reg_seq(struct v4l2_subdev *sd,
const struct adv7604_reg_seq *reg_seq)
{
unsigned int i;
for (i = 0; reg_seq[i].reg != ADV7604_REG_SEQ_TERM; i++)
adv7604_write_reg(sd, reg_seq[i].reg, reg_seq[i].val);
}
/* -----------------------------------------------------------------------------
* Format helpers
*/
static const struct adv7604_format_info adv7604_formats[] = {
{ V4L2_MBUS_FMT_RGB888_1X24, ADV7604_OP_CH_SEL_RGB, true, false,
ADV7604_OP_MODE_SEL_SDR_444 | ADV7604_OP_FORMAT_SEL_8BIT },
{ V4L2_MBUS_FMT_YUYV8_2X8, ADV7604_OP_CH_SEL_RGB, false, false,
ADV7604_OP_MODE_SEL_SDR_422 | ADV7604_OP_FORMAT_SEL_8BIT },
{ V4L2_MBUS_FMT_YVYU8_2X8, ADV7604_OP_CH_SEL_RGB, false, true,
ADV7604_OP_MODE_SEL_SDR_422 | ADV7604_OP_FORMAT_SEL_8BIT },
{ V4L2_MBUS_FMT_YUYV10_2X10, ADV7604_OP_CH_SEL_RGB, false, false,
ADV7604_OP_MODE_SEL_SDR_422 | ADV7604_OP_FORMAT_SEL_10BIT },
{ V4L2_MBUS_FMT_YVYU10_2X10, ADV7604_OP_CH_SEL_RGB, false, true,
ADV7604_OP_MODE_SEL_SDR_422 | ADV7604_OP_FORMAT_SEL_10BIT },
{ V4L2_MBUS_FMT_YUYV12_2X12, ADV7604_OP_CH_SEL_RGB, false, false,
ADV7604_OP_MODE_SEL_SDR_422 | ADV7604_OP_FORMAT_SEL_12BIT },
{ V4L2_MBUS_FMT_YVYU12_2X12, ADV7604_OP_CH_SEL_RGB, false, true,
ADV7604_OP_MODE_SEL_SDR_422 | ADV7604_OP_FORMAT_SEL_12BIT },
{ V4L2_MBUS_FMT_UYVY8_1X16, ADV7604_OP_CH_SEL_RBG, false, false,
ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_8BIT },
{ V4L2_MBUS_FMT_VYUY8_1X16, ADV7604_OP_CH_SEL_RBG, false, true,
ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_8BIT },
{ V4L2_MBUS_FMT_YUYV8_1X16, ADV7604_OP_CH_SEL_RGB, false, false,
ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_8BIT },
{ V4L2_MBUS_FMT_YVYU8_1X16, ADV7604_OP_CH_SEL_RGB, false, true,
ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_8BIT },
{ V4L2_MBUS_FMT_UYVY10_1X20, ADV7604_OP_CH_SEL_RBG, false, false,
ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_10BIT },
{ V4L2_MBUS_FMT_VYUY10_1X20, ADV7604_OP_CH_SEL_RBG, false, true,
ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_10BIT },
{ V4L2_MBUS_FMT_YUYV10_1X20, ADV7604_OP_CH_SEL_RGB, false, false,
ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_10BIT },
{ V4L2_MBUS_FMT_YVYU10_1X20, ADV7604_OP_CH_SEL_RGB, false, true,
ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_10BIT },
{ V4L2_MBUS_FMT_UYVY12_1X24, ADV7604_OP_CH_SEL_RBG, false, false,
ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_12BIT },
{ V4L2_MBUS_FMT_VYUY12_1X24, ADV7604_OP_CH_SEL_RBG, false, true,
ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_12BIT },
{ V4L2_MBUS_FMT_YUYV12_1X24, ADV7604_OP_CH_SEL_RGB, false, false,
ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_12BIT },
{ V4L2_MBUS_FMT_YVYU12_1X24, ADV7604_OP_CH_SEL_RGB, false, true,
ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_12BIT },
};
static const struct adv7604_format_info adv7611_formats[] = {
{ V4L2_MBUS_FMT_RGB888_1X24, ADV7604_OP_CH_SEL_RGB, true, false,
ADV7604_OP_MODE_SEL_SDR_444 | ADV7604_OP_FORMAT_SEL_8BIT },
{ V4L2_MBUS_FMT_YUYV8_2X8, ADV7604_OP_CH_SEL_RGB, false, false,
ADV7604_OP_MODE_SEL_SDR_422 | ADV7604_OP_FORMAT_SEL_8BIT },
{ V4L2_MBUS_FMT_YVYU8_2X8, ADV7604_OP_CH_SEL_RGB, false, true,
ADV7604_OP_MODE_SEL_SDR_422 | ADV7604_OP_FORMAT_SEL_8BIT },
{ V4L2_MBUS_FMT_YUYV12_2X12, ADV7604_OP_CH_SEL_RGB, false, false,
ADV7604_OP_MODE_SEL_SDR_422 | ADV7604_OP_FORMAT_SEL_12BIT },
{ V4L2_MBUS_FMT_YVYU12_2X12, ADV7604_OP_CH_SEL_RGB, false, true,
ADV7604_OP_MODE_SEL_SDR_422 | ADV7604_OP_FORMAT_SEL_12BIT },
{ V4L2_MBUS_FMT_UYVY8_1X16, ADV7604_OP_CH_SEL_RBG, false, false,
ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_8BIT },
{ V4L2_MBUS_FMT_VYUY8_1X16, ADV7604_OP_CH_SEL_RBG, false, true,
ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_8BIT },
{ V4L2_MBUS_FMT_YUYV8_1X16, ADV7604_OP_CH_SEL_RGB, false, false,
ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_8BIT },
{ V4L2_MBUS_FMT_YVYU8_1X16, ADV7604_OP_CH_SEL_RGB, false, true,
ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_8BIT },
{ V4L2_MBUS_FMT_UYVY12_1X24, ADV7604_OP_CH_SEL_RBG, false, false,
ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_12BIT },
{ V4L2_MBUS_FMT_VYUY12_1X24, ADV7604_OP_CH_SEL_RBG, false, true,
ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_12BIT },
{ V4L2_MBUS_FMT_YUYV12_1X24, ADV7604_OP_CH_SEL_RGB, false, false,
ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_12BIT },
{ V4L2_MBUS_FMT_YVYU12_1X24, ADV7604_OP_CH_SEL_RGB, false, true,
ADV7604_OP_MODE_SEL_SDR_422_2X | ADV7604_OP_FORMAT_SEL_12BIT },
};
static const struct adv7604_format_info *
adv7604_format_info(struct adv7604_state *state, enum v4l2_mbus_pixelcode code)
{
unsigned int i;
for (i = 0; i < state->info->nformats; ++i) {
if (state->info->formats[i].code == code)
return &state->info->formats[i];
}
return NULL;
}
/* ----------------------------------------------------------------------- */
static inline bool is_analog_input(struct v4l2_subdev *sd)
{
struct adv7604_state *state = to_state(sd);
return state->selected_input == ADV7604_PAD_VGA_RGB ||
state->selected_input == ADV7604_PAD_VGA_COMP;
}
static inline bool is_digital_input(struct v4l2_subdev *sd)
{
struct adv7604_state *state = to_state(sd);
return state->selected_input == ADV7604_PAD_HDMI_PORT_A ||
state->selected_input == ADV7604_PAD_HDMI_PORT_B ||
state->selected_input == ADV7604_PAD_HDMI_PORT_C ||
state->selected_input == ADV7604_PAD_HDMI_PORT_D;
}
/* ----------------------------------------------------------------------- */
#ifdef CONFIG_VIDEO_ADV_DEBUG
static void adv7604_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: ESDP Map\n");
v4l2_info(sd, "0x500-0x5ff: DPP 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: Test Map\n");
v4l2_info(sd, "0xb00-0xbff: CP Map\n");
v4l2_info(sd, "0xc00-0xcff: VDP Map\n");
}
static int adv7604_g_register(struct v4l2_subdev *sd,
struct v4l2_dbg_register *reg)
{
int ret;
ret = adv7604_read_reg(sd, reg->reg);
if (ret < 0) {
v4l2_info(sd, "Register %03llx not supported\n", reg->reg);
adv7604_inv_register(sd);
return ret;
}
reg->size = 1;
reg->val = ret;
return 0;
}
static int adv7604_s_register(struct v4l2_subdev *sd,
const struct v4l2_dbg_register *reg)
{
int ret;
ret = adv7604_write_reg(sd, reg->reg, reg->val);
if (ret < 0) {
v4l2_info(sd, "Register %03llx not supported\n", reg->reg);
adv7604_inv_register(sd);
return ret;
}
return 0;
}
#endif
static unsigned int adv7604_read_cable_det(struct v4l2_subdev *sd)
{
u8 value = io_read(sd, 0x6f);
return ((value & 0x10) >> 4)
| ((value & 0x08) >> 2)
| ((value & 0x04) << 0)
| ((value & 0x02) << 2);
}
static unsigned int adv7611_read_cable_det(struct v4l2_subdev *sd)
{
u8 value = io_read(sd, 0x6f);
return value & 1;
}
static int adv7604_s_detect_tx_5v_ctrl(struct v4l2_subdev *sd)
{
struct adv7604_state *state = to_state(sd);
const struct adv7604_chip_info *info = state->info;
return v4l2_ctrl_s_ctrl(state->detect_tx_5v_ctrl,
info->read_cable_det(sd));
}
static int find_and_set_predefined_video_timings(struct v4l2_subdev *sd,
u8 prim_mode,
const struct adv7604_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))
continue;
io_write(sd, 0x00, predef_vid_timings[i].vid_std); /* video std */
io_write(sd, 0x01, (predef_vid_timings[i].v_freq << 4) +
prim_mode); /* v_freq and prim mode */
return 0;
}
return -1;
}
static int configure_predefined_video_timings(struct v4l2_subdev *sd,
struct v4l2_dv_timings *timings)
{
struct adv7604_state *state = to_state(sd);
int err;
v4l2_dbg(1, debug, sd, "%s", __func__);
if (adv7604_has_afe(state)) {
/* reset to default values */
io_write(sd, 0x16, 0x43);
io_write(sd, 0x17, 0x5a);
}
/* disable embedded syncs for auto graphics mode */
cp_write_clr_set(sd, 0x81, 0x10, 0x00);
cp_write(sd, 0x8f, 0x00);
cp_write(sd, 0x90, 0x00);
cp_write(sd, 0xa2, 0x00);
cp_write(sd, 0xa3, 0x00);
cp_write(sd, 0xa4, 0x00);
cp_write(sd, 0xa5, 0x00);
cp_write(sd, 0xa6, 0x00);
cp_write(sd, 0xa7, 0x00);
cp_write(sd, 0xab, 0x00);
cp_write(sd, 0xac, 0x00);
if (is_analog_input(sd)) {
err = find_and_set_predefined_video_timings(sd,
0x01, adv7604_prim_mode_comp, timings);
if (err)
err = find_and_set_predefined_video_timings(sd,
0x02, adv7604_prim_mode_gr, timings);
} else if (is_digital_input(sd)) {
err = find_and_set_predefined_video_timings(sd,
0x05, adv7604_prim_mode_hdmi_comp, timings);
if (err)
err = find_and_set_predefined_video_timings(sd,
0x06, adv7604_prim_mode_hdmi_gr, timings);
} else {
v4l2_dbg(2, debug, sd, "%s: Unknown port %d selected\n",
__func__, state->selected_input);
err = -1;
}
return err;
}
static void configure_custom_video_timings(struct v4l2_subdev *sd,
const struct v4l2_bt_timings *bt)
{
struct adv7604_state *state = to_state(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;
u16 cp_end_vbi = bt->vsync + bt->vbackporch;
u16 ch1_fr_ll = (((u32)bt->pixelclock / 100) > 0) ?
((width * (ADV7604_fsc / 100)) / ((u32)bt->pixelclock / 100)) : 0;
const u8 pll[2] = {
0xc0 | ((width >> 8) & 0x1f),
width & 0xff
};
v4l2_dbg(2, debug, sd, "%s\n", __func__);
if (is_analog_input(sd)) {
/* auto graphics */
io_write(sd, 0x00, 0x07); /* video std */
io_write(sd, 0x01, 0x02); /* prim mode */
/* enable embedded syncs for auto graphics mode */
cp_write_clr_set(sd, 0x81, 0x10, 0x10);
/* 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 (adv_smbus_write_i2c_block_data(state, ADV7604_PAGE_IO,
0x16, 2, pll))
v4l2_err(sd, "writing to reg 0x16 and 0x17 failed\n");
/* active video - horizontal timing */
cp_write(sd, 0xa2, (cp_start_sav >> 4) & 0xff);
cp_write(sd, 0xa3, ((cp_start_sav & 0x0f) << 4) |
((cp_start_eav >> 8) & 0x0f));
cp_write(sd, 0xa4, cp_start_eav & 0xff);
/* active video - vertical timing */
cp_write(sd, 0xa5, (cp_start_vbi >> 4) & 0xff);
cp_write(sd, 0xa6, ((cp_start_vbi & 0xf) << 4) |
((cp_end_vbi >> 8) & 0xf));
cp_write(sd, 0xa7, cp_end_vbi & 0xff);
} else if (is_digital_input(sd)) {
/* set default prim_mode/vid_std for HDMI
according to [REF_03, c. 4.2] */
io_write(sd, 0x00, 0x02); /* video std */
io_write(sd, 0x01, 0x06); /* prim mode */
} else {
v4l2_dbg(2, debug, sd, "%s: Unknown port %d selected\n",
__func__, state->selected_input);
}
cp_write(sd, 0x8f, (ch1_fr_ll >> 8) & 0x7);
cp_write(sd, 0x90, ch1_fr_ll & 0xff);
cp_write(sd, 0xab, (height >> 4) & 0xff);
cp_write(sd, 0xac, (height & 0x0f) << 4);
}
static void adv7604_set_offset(struct v4l2_subdev *sd, bool auto_offset, u16 offset_a, u16 offset_b, u16 offset_c)
{
struct adv7604_state *state = to_state(sd);
u8 offset_buf[4];
if (auto_offset) {
offset_a = 0x3ff;
offset_b = 0x3ff;
offset_c = 0x3ff;
}
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, 0x77) & 0xc0) | ((offset_a & 0x3f0) >> 4);
offset_buf[1] = ((offset_a & 0x00f) << 4) | ((offset_b & 0x3c0) >> 6);
offset_buf[2] = ((offset_b & 0x03f) << 2) | ((offset_c & 0x300) >> 8);
offset_buf[3] = offset_c & 0x0ff;
/* Registers must be written in this order with no i2c access in between */
if (adv_smbus_write_i2c_block_data(state, ADV7604_PAGE_CP,
0x77, 4, offset_buf))
v4l2_err(sd, "%s: i2c error writing to CP reg 0x77, 0x78, 0x79, 0x7a\n", __func__);
}
static void adv7604_set_gain(struct v4l2_subdev *sd, bool auto_gain, u16 gain_a, u16 gain_b, u16 gain_c)
{
struct adv7604_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 = 0x100;
gain_b = 0x100;
gain_c = 0x100;
}
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 & 0x3f0) >> 4));
gain_buf[1] = (((gain_a & 0x00f) << 4) | ((gain_b & 0x3c0) >> 6));
gain_buf[2] = (((gain_b & 0x03f) << 2) | ((gain_c & 0x300) >> 8));
gain_buf[3] = ((gain_c & 0x0ff));
/* Registers must be written in this order with no i2c access in between */
if (adv_smbus_write_i2c_block_data(state, ADV7604_PAGE_CP,
0x73, 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 adv7604_state *state = to_state(sd);
bool rgb_output = io_read(sd, 0x02) & 0x02;
bool hdmi_signal = hdmi_read(sd, 0x05) & 0x80;
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);
adv7604_set_gain(sd, true, 0x0, 0x0, 0x0);
adv7604_set_offset(sd, true, 0x0, 0x0, 0x0);
switch (state->rgb_quantization_range) {
case V4L2_DV_RGB_RANGE_AUTO:
if (state->selected_input == ADV7604_PAD_VGA_RGB) {
/* Receiving analog RGB signal
* Set RGB full range (0-255) */
io_write_clr_set(sd, 0x02, 0xf0, 0x10);
break;
}
if (state->selected_input == ADV7604_PAD_VGA_COMP) {
/* Receiving analog YPbPr signal
* Set automode */
io_write_clr_set(sd, 0x02, 0xf0, 0xf0);
break;
}
if (hdmi_signal) {
/* Receiving HDMI signal
* Set automode */
io_write_clr_set(sd, 0x02, 0xf0, 0xf0);
break;
}
/* Receiving DVI-D signal
* ADV7604 selects RGB limited range regardless of
* input format (CE/IT) in automatic mode */
if (state->timings.bt.standards & V4L2_DV_BT_STD_CEA861) {
/* RGB limited range (16-235) */
io_write_clr_set(sd, 0x02, 0xf0, 0x00);
} else {
/* RGB full range (0-255) */
io_write_clr_set(sd, 0x02, 0xf0, 0x10);
if (is_digital_input(sd) && rgb_output) {
adv7604_set_offset(sd, false, 0x40, 0x40, 0x40);
} else {
adv7604_set_gain(sd, false, 0xe0, 0xe0, 0xe0);
adv7604_set_offset(sd, false, 0x70, 0x70, 0x70);
}
}
break;
case V4L2_DV_RGB_RANGE_LIMITED:
if (state->selected_input == ADV7604_PAD_VGA_COMP) {
/* YCrCb limited range (16-235) */
io_write_clr_set(sd, 0x02, 0xf0, 0x20);
break;
}
/* RGB limited range (16-235) */
io_write_clr_set(sd, 0x02, 0xf0, 0x00);
break;
case V4L2_DV_RGB_RANGE_FULL:
if (state->selected_input == ADV7604_PAD_VGA_COMP) {
/* YCrCb full range (0-255) */
io_write_clr_set(sd, 0x02, 0xf0, 0x60);
break;
}
/* RGB full range (0-255) */
io_write_clr_set(sd, 0x02, 0xf0, 0x10);
if (is_analog_input(sd) || hdmi_signal)
break;
/* Adjust gain/offset for DVI-D signals only */
if (rgb_output) {
adv7604_set_offset(sd, false, 0x40, 0x40, 0x40);
} else {
adv7604_set_gain(sd, false, 0xe0, 0xe0, 0xe0);
adv7604_set_offset(sd, false, 0x70, 0x70, 0x70);
}
break;
}
}
static int adv7604_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct v4l2_subdev *sd =
&container_of(ctrl->handler, struct adv7604_state, hdl)->sd;
struct adv7604_state *state = to_state(sd);
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
cp_write(sd, 0x3c, ctrl->val);
return 0;
case V4L2_CID_CONTRAST:
cp_write(sd, 0x3a, ctrl->val);
return 0;
case V4L2_CID_SATURATION:
cp_write(sd, 0x3b, ctrl->val);
return 0;
case V4L2_CID_HUE:
cp_write(sd, 0x3d, ctrl->val);
return 0;
case V4L2_CID_DV_RX_RGB_RANGE:
state->rgb_quantization_range = ctrl->val;
set_rgb_quantization_range(sd);
return 0;
case V4L2_CID_ADV_RX_ANALOG_SAMPLING_PHASE:
if (!adv7604_has_afe(state))
return -EINVAL;
/* Set the analog sampling phase. This is needed to find the
best sampling phase for analog video: an application or
driver has to try a number of phases and analyze the picture
quality before settling on the best performing phase. */
afe_write(sd, 0xc8, ctrl->val);
return 0;
case V4L2_CID_ADV_RX_FREE_RUN_COLOR_MANUAL:
/* Use the default blue color for free running mode,
or supply your own. */
cp_write_clr_set(sd, 0xbf, 0x04, ctrl->val << 2);
return 0;
case V4L2_CID_ADV_RX_FREE_RUN_COLOR:
cp_write(sd, 0xc0, (ctrl->val & 0xff0000) >> 16);
cp_write(sd, 0xc1, (ctrl->val & 0x00ff00) >> 8);
cp_write(sd, 0xc2, (u8)(ctrl->val & 0x0000ff));
return 0;
}
return -EINVAL;
}
/* ----------------------------------------------------------------------- */
static inline bool no_power(struct v4l2_subdev *sd)
{
/* Entire chip or CP powered off */
return io_read(sd, 0x0c) & 0x24;
}
static inline bool no_signal_tmds(struct v4l2_subdev *sd)
{
struct adv7604_state *state = to_state(sd);
return !(io_read(sd, 0x6a) & (0x10 >> state->selected_input));
}
static inline bool no_lock_tmds(struct v4l2_subdev *sd)
{
struct adv7604_state *state = to_state(sd);
const struct adv7604_chip_info *info = state->info;
return (io_read(sd, 0x6a) & info->tdms_lock_mask) != info->tdms_lock_mask;
}
static inline bool is_hdmi(struct v4l2_subdev *sd)
{
return hdmi_read(sd, 0x05) & 0x80;
}
static inline bool no_lock_sspd(struct v4l2_subdev *sd)
{
struct adv7604_state *state = to_state(sd);
/*
* Chips without a AFE don't expose registers for the SSPD, so just assume
* that we have a lock.
*/
if (adv7604_has_afe(state))
return false;
/* TODO channel 2 */
return ((cp_read(sd, 0xb5) & 0xd0) != 0xd0);
}
static inline bool no_lock_stdi(struct v4l2_subdev *sd)
{
/* TODO channel 2 */
return !(cp_read(sd, 0xb1) & 0x80);
}
static inline bool no_signal(struct v4l2_subdev *sd)
{
bool ret;
ret = no_power(sd);
ret |= no_lock_stdi(sd);
ret |= no_lock_sspd(sd);
if (is_digital_input(sd)) {
ret |= no_lock_tmds(sd);
ret |= no_signal_tmds(sd);
}
return ret;
}
static inline bool no_lock_cp(struct v4l2_subdev *sd)
{
struct adv7604_state *state = to_state(sd);
if (!adv7604_has_afe(state))
return false;
/* CP has detected a non standard number of lines on the incoming
video compared to what it is configured to receive by s_dv_timings */
return io_read(sd, 0x12) & 0x01;
}
static int adv7604_g_input_status(struct v4l2_subdev *sd, u32 *status)
{
*status = 0;
*status |= no_power(sd) ? V4L2_IN_ST_NO_POWER : 0;
*status |= no_signal(sd) ? V4L2_IN_ST_NO_SIGNAL : 0;
if (no_lock_cp(sd))
*status |= is_digital_input(sd) ? V4L2_IN_ST_NO_SYNC : V4L2_IN_ST_NO_H_LOCK;
v4l2_dbg(1, debug, sd, "%s: 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 adv7604_state *state = to_state(sd);
u32 hfreq = (ADV7604_fsc * 8) / stdi->bl;
u32 pix_clk;
int i;
for (i = 0; adv7604_timings[i].bt.height; i++) {
if (vtotal(&adv7604_timings[i].bt) != stdi->lcf + 1)
continue;
if (adv7604_timings[i].bt.vsync != stdi->lcvs)
continue;
pix_clk = hfreq * htotal(&adv7604_timings[i].bt);
if ((pix_clk < adv7604_timings[i].bt.pixelclock + 1000000) &&
(pix_clk > adv7604_timings[i].bt.pixelclock - 1000000)) {
*timings = adv7604_timings[i];
return 0;
}
}
if (v4l2_detect_cvt(stdi->lcf + 1, hfreq, stdi->lcvs,
(stdi->hs_pol == '+' ? V4L2_DV_HSYNC_POS_POL : 0) |
(stdi->vs_pol == '+' ? V4L2_DV_VSYNC_POS_POL : 0),
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),
state->aspect_ratio, 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)
{
struct adv7604_state *state = to_state(sd);
const struct adv7604_chip_info *info = state->info;
u8 polarity;
if (no_lock_stdi(sd) || no_lock_sspd(sd)) {
v4l2_dbg(2, debug, sd, "%s: STDI and/or SSPD not locked\n", __func__);
return -1;
}
/* read STDI */
stdi->bl = cp_read16(sd, 0xb1, 0x3fff);
stdi->lcf = cp_read16(sd, info->lcf_reg, 0x7ff);
stdi->lcvs = cp_read(sd, 0xb3) >> 3;
stdi->interlaced = io_read(sd, 0x12) & 0x10;
if (adv7604_has_afe(state)) {
/* read SSPD */
polarity = cp_read(sd, 0xb5);
if ((polarity & 0x03) == 0x01) {
stdi->hs_pol = polarity & 0x10
? (polarity & 0x08 ? '+' : '-') : 'x';
stdi->vs_pol = polarity & 0x40
? (polarity & 0x20 ? '+' : '-') : 'x';
} else {
stdi->hs_pol = 'x';
stdi->vs_pol = 'x';
}
} else {
polarity = hdmi_read(sd, 0x05);
stdi->hs_pol = polarity & 0x20 ? '+' : '-';
stdi->vs_pol = polarity & 0x10 ? '+' : '-';
}
if (no_lock_stdi(sd) || no_lock_sspd(sd)) {
v4l2_dbg(2, debug, sd,
"%s: signal lost during readout of STDI/SSPD\n", __func__);
return -1;
}
if (stdi->lcf < 239 || stdi->bl < 8 || stdi->bl == 0x3fff) {
v4l2_dbg(2, debug, sd, "%s: invalid signal\n", __func__);
memset(stdi, 0, sizeof(struct stdi_readback));
return -1;
}
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 adv7604_enum_dv_timings(struct v4l2_subdev *sd,
struct v4l2_enum_dv_timings *timings)
{
struct adv7604_state *state = to_state(sd);
if (timings->index >= ARRAY_SIZE(adv7604_timings) - 1)
return -EINVAL;
if (timings->pad >= state->source_pad)
return -EINVAL;
memset(timings->reserved, 0, sizeof(timings->reserved));
timings->timings = adv7604_timings[timings->index];
return 0;
}
static int adv7604_dv_timings_cap(struct v4l2_subdev *sd,
struct v4l2_dv_timings_cap *cap)
{
struct adv7604_state *state = to_state(sd);
if (cap->pad >= state->source_pad)
return -EINVAL;
cap->type = V4L2_DV_BT_656_1120;
cap->bt.max_width = 1920;
cap->bt.max_height = 1200;
cap->bt.min_pixelclock = 25000000;
switch (cap->pad) {
case ADV7604_PAD_HDMI_PORT_A:
case ADV7604_PAD_HDMI_PORT_B:
case ADV7604_PAD_HDMI_PORT_C:
case ADV7604_PAD_HDMI_PORT_D:
cap->bt.max_pixelclock = 225000000;
break;
case ADV7604_PAD_VGA_RGB:
case ADV7604_PAD_VGA_COMP:
default:
cap->bt.max_pixelclock = 170000000;
break;
}
cap->bt.standards = V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT;
cap->bt.capabilities = V4L2_DV_BT_CAP_PROGRESSIVE |
V4L2_DV_BT_CAP_REDUCED_BLANKING | V4L2_DV_BT_CAP_CUSTOM;
return 0;
}
/* Fill the optional fields .standards and .flags in struct v4l2_dv_timings
if the format is listed in adv7604_timings[] */
static void adv7604_fill_optional_dv_timings_fields(struct v4l2_subdev *sd,
struct v4l2_dv_timings *timings)
{
int i;
for (i = 0; adv7604_timings[i].bt.width; i++) {
if (v4l2_match_dv_timings(timings, &adv7604_timings[i],
is_digital_input(sd) ? 250000 : 1000000)) {
*timings = adv7604_timings[i];
break;
}
}
}
static unsigned int adv7604_read_hdmi_pixelclock(struct v4l2_subdev *sd)
{
unsigned int freq;
int a, b;
a = hdmi_read(sd, 0x06);
b = hdmi_read(sd, 0x3b);
if (a < 0 || b < 0)
return 0;
freq = a * 1000000 + ((b & 0x30) >> 4) * 250000;
if (is_hdmi(sd)) {
/* adjust for deep color mode */
unsigned bits_per_channel = ((hdmi_read(sd, 0x0b) & 0x60) >> 4) + 8;
freq = freq * 8 / bits_per_channel;
}
return freq;
}
static unsigned int adv7611_read_hdmi_pixelclock(struct v4l2_subdev *sd)
{
int a, b;
a = hdmi_read(sd, 0x51);
b = hdmi_read(sd, 0x52);
if (a < 0 || b < 0)
return 0;
return ((a << 1) | (b >> 7)) * 1000000 + (b & 0x7f) * 1000000 / 128;
}
static int adv7604_query_dv_timings(struct v4l2_subdev *sd,
struct v4l2_dv_timings *timings)
{
struct adv7604_state *state = to_state(sd);
const struct adv7604_chip_info *info = state->info;
struct v4l2_bt_timings *bt = &timings->bt;
struct stdi_readback stdi;
if (!timings)
return -EINVAL;
memset(timings, 0, sizeof(struct v4l2_dv_timings));
if (no_signal(sd)) {
state->restart_stdi_once = true;
v4l2_dbg(1, debug, sd, "%s: no valid signal\n", __func__);
return -ENOLINK;
}
/* read STDI */
if (read_stdi(sd, &stdi)) {
v4l2_dbg(1, debug, sd, "%s: STDI/SSPD not locked\n", __func__);
return -ENOLINK;
}
bt->interlaced = stdi.interlaced ?
V4L2_DV_INTERLACED : V4L2_DV_PROGRESSIVE;
if (is_digital_input(sd)) {
timings->type = V4L2_DV_BT_656_1120;
/* FIXME: All masks are incorrect for ADV7611 */
bt->width = hdmi_read16(sd, 0x07, 0xfff);
bt->height = hdmi_read16(sd, 0x09, 0xfff);
bt->pixelclock = info->read_hdmi_pixelclock(sd);
bt->hfrontporch = hdmi_read16(sd, 0x20, 0x3ff);
bt->hsync = hdmi_read16(sd, 0x22, 0x3ff);
bt->hbackporch = hdmi_read16(sd, 0x24, 0x3ff);
bt->vfrontporch = hdmi_read16(sd, 0x2a, 0x1fff) / 2;
bt->vsync = hdmi_read16(sd, 0x2e, 0x1fff) / 2;
bt->vbackporch = hdmi_read16(sd, 0x32, 0x1fff) / 2;
bt->polarities = ((hdmi_read(sd, 0x05) & 0x10) ? V4L2_DV_VSYNC_POS_POL : 0) |
((hdmi_read(sd, 0x05) & 0x20) ? V4L2_DV_HSYNC_POS_POL : 0);
if (bt->interlaced == V4L2_DV_INTERLACED) {
bt->height += hdmi_read16(sd, 0x0b, 0xfff);
bt->il_vfrontporch = hdmi_read16(sd, 0x2c, 0x1fff) / 2;
bt->il_vsync = hdmi_read16(sd, 0x30, 0x1fff) / 2;
bt->vbackporch = hdmi_read16(sd, 0x34, 0x1fff) / 2;
}
adv7604_fill_optional_dv_timings_fields(sd, timings);
} else {
/* find format
* Since LCVS values are inaccurate [REF_03, p. 275-276],
* 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_clr_set(sd, 0x86, 0x06, 0x00);
/* trigger STDI restart */
cp_write_clr_set(sd, 0x86, 0x06, 0x04);
/* reset to continuous mode */
cp_write_clr_set(sd, 0x86, 0x06, 0x02);
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 (no_signal(sd)) {
v4l2_dbg(1, debug, sd, "%s: signal lost during readout\n", __func__);
memset(timings, 0, sizeof(struct v4l2_dv_timings));
return -ENOLINK;
}
if ((is_analog_input(sd) && bt->pixelclock > 170000000) ||
(is_digital_input(sd) && bt->pixelclock > 225000000)) {
v4l2_dbg(1, debug, sd, "%s: pixelclock out of range %d\n",
__func__, (u32)bt->pixelclock);
return -ERANGE;
}
if (debug > 1)
v4l2_print_dv_timings(sd->name, "adv7604_query_dv_timings: ",
timings, true);
return 0;
}
static int adv7604_s_dv_timings(struct v4l2_subdev *sd,
struct v4l2_dv_timings *timings)
{
struct adv7604_state *state = to_state(sd);
struct v4l2_bt_timings *bt;
int err;
if (!timings)
return -EINVAL;
if (v4l2_match_dv_timings(&state->timings, timings, 0)) {
v4l2_dbg(1, debug, sd, "%s: no change\n", __func__);
return 0;
}
bt = &timings->bt;
if ((is_analog_input(sd) && bt->pixelclock > 170000000) ||
(is_digital_input(sd) && bt->pixelclock > 225000000)) {
v4l2_dbg(1, debug, sd, "%s: pixelclock out of range %d\n",
__func__, (u32)bt->pixelclock);
return -ERANGE;
}
adv7604_fill_optional_dv_timings_fields(sd, timings);
state->timings = *timings;
cp_write_clr_set(sd, 0x91, 0x40, bt->interlaced ? 0x40 : 0x00);
/* 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, "adv7604_s_dv_timings: ",
timings, true);
return 0;
}
static int adv7604_g_dv_timings(struct v4l2_subdev *sd,
struct v4l2_dv_timings *timings)
{
struct adv7604_state *state = to_state(sd);
*timings = state->timings;
return 0;
}
static void adv7604_set_termination(struct v4l2_subdev *sd, bool enable)
{
hdmi_write(sd, 0x01, enable ? 0x00 : 0x78);
}
static void adv7611_set_termination(struct v4l2_subdev *sd, bool enable)
{
hdmi_write(sd, 0x83, enable ? 0xfe : 0xff);
}
static void enable_input(struct v4l2_subdev *sd)
{
struct adv7604_state *state = to_state(sd);
if (is_analog_input(sd)) {
io_write(sd, 0x15, 0xb0); /* Disable Tristate of Pins (no audio) */
} else if (is_digital_input(sd)) {
hdmi_write_clr_set(sd, 0x00, 0x03, state->selected_input);
state->info->set_termination(sd, true);
io_write(sd, 0x15, 0xa0); /* Disable Tristate of Pins */
hdmi_write_clr_set(sd, 0x1a, 0x10, 0x00); /* Unmute audio */
} else {
v4l2_dbg(2, debug, sd, "%s: Unknown port %d selected\n",
__func__, state->selected_input);
}
}
static void disable_input(struct v4l2_subdev *sd)
{
struct adv7604_state *state = to_state(sd);
hdmi_write_clr_set(sd, 0x1a, 0x10, 0x10); /* Mute audio */
msleep(16); /* 512 samples with >= 32 kHz sample rate [REF_03, c. 7.16.10] */
io_write(sd, 0x15, 0xbe); /* Tristate all outputs from video core */
state->info->set_termination(sd, false);
}
static void select_input(struct v4l2_subdev *sd)
{
struct adv7604_state *state = to_state(sd);
const struct adv7604_chip_info *info = state->info;
if (is_analog_input(sd)) {
adv7604_write_reg_seq(sd, info->recommended_settings[0]);
afe_write(sd, 0x00, 0x08); /* power up ADC */
afe_write(sd, 0x01, 0x06); /* power up Analog Front End */
afe_write(sd, 0xc8, 0x00); /* phase control */
} else if (is_digital_input(sd)) {
hdmi_write(sd, 0x00, state->selected_input & 0x03);
adv7604_write_reg_seq(sd, info->recommended_settings[1]);
if (adv7604_has_afe(state)) {
afe_write(sd, 0x00, 0xff); /* power down ADC */
afe_write(sd, 0x01, 0xfe); /* power down Analog Front End */
afe_write(sd, 0xc8, 0x40); /* phase control */
}
cp_write(sd, 0x3e, 0x00); /* CP core pre-gain control */
cp_write(sd, 0xc3, 0x39); /* CP coast control. Graphics mode */
cp_write(sd, 0x40, 0x80); /* CP core pre-gain control. Graphics mode */
} else {
v4l2_dbg(2, debug, sd, "%s: Unknown port %d selected\n",
__func__, state->selected_input);
}
}
static int adv7604_s_routing(struct v4l2_subdev *sd,
u32 input, u32 output, u32 config)
{
struct adv7604_state *state = to_state(sd);
v4l2_dbg(2, debug, sd, "%s: input %d, selected input %d",
__func__, input, state->selected_input);
if (input == state->selected_input)
return 0;
if (input > state->info->max_port)
return -EINVAL;
state->selected_input = input;
disable_input(sd);
select_input(sd);
enable_input(sd);
return 0;
}
static int adv7604_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_fh *fh,
struct v4l2_subdev_mbus_code_enum *code)
{
struct adv7604_state *state = to_state(sd);
if (code->index >= state->info->nformats)
return -EINVAL;
code->code = state->info->formats[code->index].code;
return 0;
}
static void adv7604_fill_format(struct adv7604_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;
if (state->timings.bt.standards & V4L2_DV_BT_STD_CEA861)
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
* adv7604_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 adv7604_op_ch_sel(struct adv7604_state *state)
{
#define _SEL(a,b,c,d,e,f) { \
ADV7604_OP_CH_SEL_##a, ADV7604_OP_CH_SEL_##b, ADV7604_OP_CH_SEL_##c, \
ADV7604_OP_CH_SEL_##d, ADV7604_OP_CH_SEL_##e, ADV7604_OP_CH_SEL_##f }
#define _BUS(x) [ADV7604_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 adv7604_setup_format(struct adv7604_state *state)
{
struct v4l2_subdev *sd = &state->sd;
io_write_clr_set(sd, 0x02, 0x02,
state->format->rgb_out ? ADV7604_RGB_OUT : 0);
io_write(sd, 0x03, state->format->op_format_sel |
state->pdata.op_format_mode_sel);
io_write_clr_set(sd, 0x04, 0xe0, adv7604_op_ch_sel(state));
io_write_clr_set(sd, 0x05, 0x01,
state->format->swap_cb_cr ? ADV7604_OP_SWAP_CB_CR : 0);
}
static int adv7604_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_format *format)
{
struct adv7604_state *state = to_state(sd);
if (format->pad != state->source_pad)
return -EINVAL;
adv7604_fill_format(state, &format->format);
if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
struct v4l2_mbus_framefmt *fmt;
fmt = v4l2_subdev_get_try_format(fh, format->pad);
format->format.code = fmt->code;
} else {
format->format.code = state->format->code;
}
return 0;
}
static int adv7604_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_format *format)
{
struct adv7604_state *state = to_state(sd);
const struct adv7604_format_info *info;
if (format->pad != state->source_pad)
return -EINVAL;
info = adv7604_format_info(state, format->format.code);
if (info == NULL)
info = adv7604_format_info(state, V4L2_MBUS_FMT_YUYV8_2X8);
adv7604_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_get_try_format(fh, format->pad);
fmt->code = format->format.code;
} else {
state->format = info;
adv7604_setup_format(state);
}
return 0;
}
static int adv7604_isr(struct v4l2_subdev *sd, u32 status, bool *handled)
{
struct adv7604_state *state = to_state(sd);
const struct adv7604_chip_info *info = state->info;
const u8 irq_reg_0x43 = io_read(sd, 0x43);
const u8 irq_reg_0x6b = io_read(sd, 0x6b);
const u8 irq_reg_0x70 = io_read(sd, 0x70);
u8 fmt_change_digital;
u8 fmt_change;
u8 tx_5v;
if (irq_reg_0x43)
io_write(sd, 0x44, irq_reg_0x43);
if (irq_reg_0x70)
io_write(sd, 0x71, irq_reg_0x70);
if (irq_reg_0x6b)
io_write(sd, 0x6c, irq_reg_0x6b);
v4l2_dbg(2, debug, sd, "%s: ", __func__);
/* format change */
fmt_change = irq_reg_0x43 & 0x98;
fmt_change_digital = is_digital_input(sd)
? irq_reg_0x6b & info->fmt_change_digital_mask
: 0;
if (fmt_change || fmt_change_digital) {
v4l2_dbg(1, debug, sd,
"%s: fmt_change = 0x%x, fmt_change_digital = 0x%x\n",
__func__, fmt_change, fmt_change_digital);
v4l2_subdev_notify(sd, ADV7604_FMT_CHANGE, NULL);
if (handled)
*handled = true;
}
/* HDMI/DVI mode */
if (irq_reg_0x6b & 0x01) {
v4l2_dbg(1, debug, sd, "%s: irq %s mode\n", __func__,
(io_read(sd, 0x6a) & 0x01) ? "HDMI" : "DVI");
set_rgb_quantization_range(sd);
if (handled)
*handled = true;
}
/* tx 5v detect */
tx_5v = io_read(sd, 0x70) & info->cable_det_mask;
if (tx_5v) {
v4l2_dbg(1, debug, sd, "%s: tx_5v: 0x%x\n", __func__, tx_5v);
io_write(sd, 0x71, tx_5v);
adv7604_s_detect_tx_5v_ctrl(sd);
if (handled)
*handled = true;
}
return 0;
}
static int adv7604_get_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid)
{
struct adv7604_state *state = to_state(sd);
u8 *data = NULL;
if (edid->pad > ADV7604_PAD_HDMI_PORT_D)
return -EINVAL;
if (edid->blocks == 0)
return -EINVAL;
if (edid->blocks > 2)
return -EINVAL;
if (edid->start_block > 1)
return -EINVAL;
if (edid->start_block == 1)
edid->blocks = 1;
if (edid->blocks > state->edid.blocks)
edid->blocks = state->edid.blocks;
switch (edid->pad) {
case ADV7604_PAD_HDMI_PORT_A:
case ADV7604_PAD_HDMI_PORT_B:
case ADV7604_PAD_HDMI_PORT_C:
case ADV7604_PAD_HDMI_PORT_D:
if (state->edid.present & (1 << edid->pad))
data = state->edid.edid;
break;
default:
return -EINVAL;
break;
}
if (!data)
return -ENODATA;
memcpy(edid->edid,
data + edid->start_block * 128,
edid->blocks * 128);
return 0;
}
static int get_edid_spa_location(const u8 *edid)
{
u8 d;
if ((edid[0x7e] != 1) ||
(edid[0x80] != 0x02) ||
(edid[0x81] != 0x03)) {
return -1;
}
/* search Vendor Specific Data Block (tag 3) */
d = edid[0x82] & 0x7f;
if (d > 4) {
int i = 0x84;
int end = 0x80 + d;
do {
u8 tag = edid[i] >> 5;
u8 len = edid[i] & 0x1f;
if ((tag == 3) && (len >= 5))
return i + 4;
i += len + 1;
} while (i < end);
}
return -1;
}
static int adv7604_set_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid)
{
struct adv7604_state *state = to_state(sd);
const struct adv7604_chip_info *info = state->info;
int spa_loc;
int err;
int i;
if (edid->pad > ADV7604_PAD_HDMI_PORT_D)
return -EINVAL;
if (edid->start_block != 0)
return -EINVAL;
if (edid->blocks == 0) {
/* Disable hotplug and I2C access to EDID RAM from DDC port */
state->edid.present &= ~(1 << edid->pad);
adv7604_set_hpd(state, state->edid.present);
rep_write_clr_set(sd, info->edid_enable_reg, 0x0f, state->edid.present);
/* Fall back to a 16:9 aspect ratio */
state->aspect_ratio.numerator = 16;
state->aspect_ratio.denominator = 9;
if (!state->edid.present)
state->edid.blocks = 0;
v4l2_dbg(2, debug, sd, "%s: clear EDID pad %d, edid.present = 0x%x\n",
__func__, edid->pad, state->edid.present);
return 0;
}
if (edid->blocks > 2) {
edid->blocks = 2;
return -E2BIG;
}
v4l2_dbg(2, debug, sd, "%s: write EDID pad %d, edid.present = 0x%x\n",
__func__, edid->pad, state->edid.present);
/* Disable hotplug and I2C access to EDID RAM from DDC port */
cancel_delayed_work_sync(&state->delayed_work_enable_hotplug);
adv7604_set_hpd(state, 0);
rep_write_clr_set(sd, info->edid_enable_reg, 0x0f, 0x00);
spa_loc = get_edid_spa_location(edid->edid);
if (spa_loc < 0)
spa_loc = 0xc0; /* Default value [REF_02, p. 116] */
switch (edid->pad) {
case ADV7604_PAD_HDMI_PORT_A:
state->spa_port_a[0] = edid->edid[spa_loc];
state->spa_port_a[1] = edid->edid[spa_loc + 1];
break;
case ADV7604_PAD_HDMI_PORT_B:
rep_write(sd, 0x70, edid->edid[spa_loc]);
rep_write(sd, 0x71, edid->edid[spa_loc + 1]);
break;
case ADV7604_PAD_HDMI_PORT_C:
rep_write(sd, 0x72, edid->edid[spa_loc]);
rep_write(sd, 0x73, edid->edid[spa_loc + 1]);
break;
case ADV7604_PAD_HDMI_PORT_D:
rep_write(sd, 0x74, edid->edid[spa_loc]);
rep_write(sd, 0x75, edid->edid[spa_loc + 1]);
break;
default:
return -EINVAL;
}
if (info->type == ADV7604) {
rep_write(sd, 0x76, spa_loc & 0xff);
rep_write_clr_set(sd, 0x77, 0x40, (spa_loc & 0x100) >> 2);
} else {
/* FIXME: Where is the SPA location LSB register ? */
rep_write_clr_set(sd, 0x71, 0x01, (spa_loc & 0x100) >> 8);
}
edid->edid[spa_loc] = state->spa_port_a[0];
edid->edid[spa_loc + 1] = state->spa_port_a[1];
memcpy(state->edid.edid, edid->edid, 128 * edid->blocks);
state->edid.blocks = edid->blocks;
state->aspect_ratio = v4l2_calc_aspect_ratio(edid->edid[0x15],
edid->edid[0x16]);
state->edid.present |= 1 << edid->pad;
err = edid_write_block(sd, 128 * edid->blocks, state->edid.edid);
if (err < 0) {
v4l2_err(sd, "error %d writing edid pad %d\n", err, edid->pad);
return err;
}
/* adv7604 calculates the checksums and enables I2C access to internal
EDID RAM from DDC port. */
rep_write_clr_set(sd, info->edid_enable_reg, 0x0f, state->edid.present);
for (i = 0; i < 1000; i++) {
if (rep_read(sd, info->edid_status_reg) & state->edid.present)
break;
mdelay(1);
}
if (i == 1000) {
v4l2_err(sd, "error enabling edid (0x%x)\n", state->edid.present);
return -EIO;
}
/* enable hotplug after 100 ms */
queue_delayed_work(state->work_queues,
&state->delayed_work_enable_hotplug, HZ / 10);
return 0;
}
/*********** avi info frame CEA-861-E **************/
static void print_avi_infoframe(struct v4l2_subdev *sd)
{
int i;
u8 buf[14];
u8 avi_len;
u8 avi_ver;
if (!is_hdmi(sd)) {
v4l2_info(sd, "receive DVI-D signal (AVI infoframe not supported)\n");
return;
}
if (!(io_read(sd, 0x60) & 0x01)) {
v4l2_info(sd, "AVI infoframe not received\n");
return;
}
if (io_read(sd, 0x83) & 0x01) {
v4l2_info(sd, "AVI infoframe checksum error has occurred earlier\n");
io_write(sd, 0x85, 0x01); /* clear AVI_INF_CKS_ERR_RAW */
if (io_read(sd, 0x83) & 0x01) {
v4l2_info(sd, "AVI infoframe checksum error still present\n");
io_write(sd, 0x85, 0x01); /* clear AVI_INF_CKS_ERR_RAW */
}
}
avi_len = infoframe_read(sd, 0xe2);
avi_ver = infoframe_read(sd, 0xe1);
v4l2_info(sd, "AVI infoframe version %d (%d byte)\n",
avi_ver, avi_len);
if (avi_ver != 0x02)
return;
for (i = 0; i < 14; i++)
buf[i] = infoframe_read(sd, i);
v4l2_info(sd,
"\t%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6], buf[7],
buf[8], buf[9], buf[10], buf[11], buf[12], buf[13]);
}
static int adv7604_log_status(struct v4l2_subdev *sd)
{
struct adv7604_state *state = to_state(sd);
const struct adv7604_chip_info *info = state->info;
struct v4l2_dv_timings timings;
struct stdi_readback stdi;
u8 reg_io_0x02 = io_read(sd, 0x02);
u8 edid_enabled;
u8 cable_det;
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");
edid_enabled = rep_read(sd, info->edid_status_reg);
v4l2_info(sd, "EDID enabled port A: %s, B: %s, C: %s, D: %s\n",
((edid_enabled & 0x01) ? "Yes" : "No"),
((edid_enabled & 0x02) ? "Yes" : "No"),
((edid_enabled & 0x04) ? "Yes" : "No"),
((edid_enabled & 0x08) ? "Yes" : "No"));
v4l2_info(sd, "CEC: %s\n", !!(cec_read(sd, 0x2a) & 0x01) ?
"enabled" : "disabled");
v4l2_info(sd, "-----Signal status-----\n");
cable_det = info->read_cable_det(sd);
v4l2_info(sd, "Cable detected (+5V power) port A: %s, B: %s, C: %s, D: %s\n",
((cable_det & 0x01) ? "Yes" : "No"),
((cable_det & 0x02) ? "Yes" : "No"),
((cable_det & 0x04) ? "Yes" : "No"),
((cable_det & 0x08) ? "Yes" : "No"));
v4l2_info(sd, "TMDS signal detected: %s\n",
no_signal_tmds(sd) ? "false" : "true");
v4l2_info(sd, "TMDS signal locked: %s\n",
no_lock_tmds(sd) ? "false" : "true");
v4l2_info(sd, "SSPD locked: %s\n", no_lock_sspd(sd) ? "false" : "true");
v4l2_info(sd, "STDI locked: %s\n", no_lock_stdi(sd) ? "false" : "true");
v4l2_info(sd, "CP locked: %s\n", no_lock_cp(sd) ? "false" : "true");
v4l2_info(sd, "CP free run: %s\n",
(!!(cp_read(sd, 0xff) & 0x10) ? "on" : "off"));
v4l2_info(sd, "Prim-mode = 0x%x, video std = 0x%x, v_freq = 0x%x\n",
io_read(sd, 0x01) & 0x0f, io_read(sd, 0x00) & 0x3f,
(io_read(sd, 0x01) & 0x70) >> 4);
v4l2_info(sd, "-----Video Timings-----\n");
if (read_stdi(sd, &stdi))
v4l2_info(sd, "STDI: not locked\n");
else
v4l2_info(sd, "STDI: lcf (frame height - 1) = %d, bl = %d, lcvs (vsync) = %d, %s, %chsync, %cvsync\n",
stdi.lcf, stdi.bl, stdi.lcvs,
stdi.interlaced ? "interlaced" : "progressive",
stdi.hs_pol, stdi.vs_pol);
if (adv7604_query_dv_timings(sd, &timings))
v4l2_info(sd, "No video detected\n");
else
v4l2_print_dv_timings(sd->name, "Detected format: ",
&timings, true);
v4l2_print_dv_timings(sd->name, "Configured format: ",
&state->timings, true);
if (no_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, saturator %s\n",
(reg_io_0x02 & 0x02) ? "RGB" : "YCbCr",
(reg_io_0x02 & 0x04) ? "(16-235)" : "(0-255)",
((reg_io_0x02 & 0x04) ^ (reg_io_0x02 & 0x01)) ?
"enabled" : "disabled");
v4l2_info(sd, "Color space conversion: %s\n",
csc_coeff_sel_rb[cp_read(sd, 0xfc) >> 4]);
if (!is_digital_input(sd))
return 0;
v4l2_info(sd, "-----%s status-----\n", is_hdmi(sd) ? "HDMI" : "DVI-D");
v4l2_info(sd, "Digital video port selected: %c\n",
(hdmi_read(sd, 0x00) & 0x03) + 'A');
v4l2_info(sd, "HDCP encrypted content: %s\n",
(hdmi_read(sd, 0x05) & 0x40) ? "true" : "false");
v4l2_info(sd, "HDCP keys read: %s%s\n",
(hdmi_read(sd, 0x04) & 0x20) ? "yes" : "no",
(hdmi_read(sd, 0x04) & 0x10) ? "ERROR" : "");
if (!is_hdmi(sd)) {
bool audio_pll_locked = hdmi_read(sd, 0x04) & 0x01;
bool audio_sample_packet_detect = hdmi_read(sd, 0x18) & 0x01;
bool audio_mute = io_read(sd, 0x65) & 0x40;
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, 0x07) & 0x20) ? "multi-channel" : "stereo");
}
v4l2_info(sd, "Audio CTS: %u\n", (hdmi_read(sd, 0x5b) << 12) +
(hdmi_read(sd, 0x5c) << 8) +
(hdmi_read(sd, 0x5d) & 0xf0));
v4l2_info(sd, "Audio N: %u\n", ((hdmi_read(sd, 0x5d) & 0x0f) << 16) +
(hdmi_read(sd, 0x5e) << 8) +
hdmi_read(sd, 0x5f));
v4l2_info(sd, "AV Mute: %s\n", (hdmi_read(sd, 0x04) & 0x40) ? "on" : "off");
v4l2_info(sd, "Deep color mode: %s\n", deep_color_mode_txt[(hdmi_read(sd, 0x0b) & 0x60) >> 5]);
print_avi_infoframe(sd);
}
return 0;
}
/* ----------------------------------------------------------------------- */
static const struct v4l2_ctrl_ops adv7604_ctrl_ops = {
.s_ctrl = adv7604_s_ctrl,
};
static const struct v4l2_subdev_core_ops adv7604_core_ops = {
.log_status = adv7604_log_status,
.interrupt_service_routine = adv7604_isr,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = adv7604_g_register,
.s_register = adv7604_s_register,
#endif
};
static const struct v4l2_subdev_video_ops adv7604_video_ops = {
.s_routing = adv7604_s_routing,
.g_input_status = adv7604_g_input_status,
.s_dv_timings = adv7604_s_dv_timings,
.g_dv_timings = adv7604_g_dv_timings,
.query_dv_timings = adv7604_query_dv_timings,
};
static const struct v4l2_subdev_pad_ops adv7604_pad_ops = {
.enum_mbus_code = adv7604_enum_mbus_code,
.get_fmt = adv7604_get_format,
.set_fmt = adv7604_set_format,
.get_edid = adv7604_get_edid,
.set_edid = adv7604_set_edid,
.dv_timings_cap = adv7604_dv_timings_cap,
.enum_dv_timings = adv7604_enum_dv_timings,
};
static const struct v4l2_subdev_ops adv7604_ops = {
.core = &adv7604_core_ops,
.video = &adv7604_video_ops,
.pad = &adv7604_pad_ops,
};
/* -------------------------- custom ctrls ---------------------------------- */
static const struct v4l2_ctrl_config adv7604_ctrl_analog_sampling_phase = {
.ops = &adv7604_ctrl_ops,
.id = V4L2_CID_ADV_RX_ANALOG_SAMPLING_PHASE,
.name = "Analog Sampling Phase",
.type = V4L2_CTRL_TYPE_INTEGER,
.min = 0,
.max = 0x1f,
.step = 1,
.def = 0,
};
static const struct v4l2_ctrl_config adv7604_ctrl_free_run_color_manual = {
.ops = &adv7604_ctrl_ops,
.id = V4L2_CID_ADV_RX_FREE_RUN_COLOR_MANUAL,
.name = "Free Running Color, Manual",
.type = V4L2_CTRL_TYPE_BOOLEAN,
.min = false,
.max = true,
.step = 1,
.def = false,
};
static const struct v4l2_ctrl_config adv7604_ctrl_free_run_color = {
.ops = &adv7604_ctrl_ops,
.id = V4L2_CID_ADV_RX_FREE_RUN_COLOR,
.name = "Free Running Color",
.type = V4L2_CTRL_TYPE_INTEGER,
.min = 0x0,
.max = 0xffffff,
.step = 0x1,
.def = 0x0,
};
/* ----------------------------------------------------------------------- */
static int adv7604_core_init(struct v4l2_subdev *sd)
{
struct adv7604_state *state = to_state(sd);
const struct adv7604_chip_info *info = state->info;
struct adv7604_platform_data *pdata = &state->pdata;
hdmi_write(sd, 0x48,
(pdata->disable_pwrdnb ? 0x80 : 0) |
(pdata->disable_cable_det_rst ? 0x40 : 0));
disable_input(sd);
if (pdata->default_input >= 0 &&
pdata->default_input < state->source_pad) {
state->selected_input = pdata->default_input;
select_input(sd);
enable_input(sd);
}
/* power */
io_write(sd, 0x0c, 0x42); /* Power up part and power down VDP */
io_write(sd, 0x0b, 0x44); /* Power down ESDP block */
cp_write(sd, 0xcf, 0x01); /* Power down macrovision */
/* video format */
io_write_clr_set(sd, 0x02, 0x0f,
pdata->alt_gamma << 3 |
pdata->op_656_range << 2 |
pdata->alt_data_sat << 0);
io_write_clr_set(sd, 0x05, 0x0e, pdata->blank_data << 3 |
pdata->insert_av_codes << 2 |
pdata->replicate_av_codes << 1);
adv7604_setup_format(state);
cp_write(sd, 0x69, 0x30); /* Enable CP CSC */
/* VS, HS polarities */
io_write(sd, 0x06, 0xa0 | pdata->inv_vs_pol << 2 |
pdata->inv_hs_pol << 1 | pdata->inv_llc_pol);
/* Adjust drive strength */
io_write(sd, 0x14, 0x40 | pdata->dr_str_data << 4 |
pdata->dr_str_clk << 2 |
pdata->dr_str_sync);
cp_write(sd, 0xba, (pdata->hdmi_free_run_mode << 1) | 0x01); /* HDMI free run */
cp_write(sd, 0xf3, 0xdc); /* Low threshold to enter/exit free run mode */
cp_write(sd, 0xf9, 0x23); /* STDI ch. 1 - LCVS change threshold -
ADI recommended setting [REF_01, c. 2.3.3] */
cp_write(sd, 0x45, 0x23); /* STDI ch. 2 - LCVS change threshold -
ADI recommended setting [REF_01, c. 2.3.3] */
cp_write(sd, 0xc9, 0x2d); /* use prim_mode and vid_std as free run resolution
for digital formats */
/* HDMI audio */
hdmi_write_clr_set(sd, 0x15, 0x03, 0x03); /* Mute on FIFO over-/underflow [REF_01, c. 1.2.18] */
hdmi_write_clr_set(sd, 0x1a, 0x0e, 0x08); /* Wait 1 s before unmute */
hdmi_write_clr_set(sd, 0x68, 0x06, 0x06); /* FIFO reset on over-/underflow [REF_01, c. 1.2.19] */
/* TODO from platform data */
afe_write(sd, 0xb5, 0x01); /* Setting MCLK to 256Fs */
if (adv7604_has_afe(state)) {
afe_write(sd, 0x02, pdata->ain_sel); /* Select analog input muxing mode */
io_write_clr_set(sd, 0x30, 1 << 4, pdata->output_bus_lsb_to_msb << 4);
}
/* interrupts */
io_write(sd, 0x40, 0xc0 | pdata->int1_config); /* Configure INT1 */
io_write(sd, 0x46, 0x98); /* Enable SSPD, STDI and CP unlocked interrupts */
io_write(sd, 0x6e, info->fmt_change_digital_mask); /* Enable V_LOCKED and DE_REGEN_LCK interrupts */
io_write(sd, 0x73, info->cable_det_mask); /* Enable cable detection (+5v) interrupts */
info->setup_irqs(sd);
return v4l2_ctrl_handler_setup(sd->ctrl_handler);
}
static void adv7604_setup_irqs(struct v4l2_subdev *sd)
{
io_write(sd, 0x41, 0xd7); /* STDI irq for any change, disable INT2 */
}
static void adv7611_setup_irqs(struct v4l2_subdev *sd)
{
io_write(sd, 0x41, 0xd0); /* STDI irq for any change, disable INT2 */
}
static void adv7604_unregister_clients(struct adv7604_state *state)
{
unsigned int i;
for (i = 1; i < ARRAY_SIZE(state->i2c_clients); ++i) {
if (state->i2c_clients[i])
i2c_unregister_device(state->i2c_clients[i]);
}
}
static struct i2c_client *adv7604_dummy_client(struct v4l2_subdev *sd,
u8 addr, u8 io_reg)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
if (addr)
io_write(sd, io_reg, addr << 1);
return i2c_new_dummy(client->adapter, io_read(sd, io_reg) >> 1);
}
static const struct adv7604_reg_seq adv7604_recommended_settings_afe[] = {
/* reset ADI recommended settings for HDMI: */
/* "ADV7604 Register Settings Recommendations (rev. 2.5, June 2010)" p. 4. */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x0d), 0x04 }, /* HDMI filter optimization */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x0d), 0x04 }, /* HDMI filter optimization */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x3d), 0x00 }, /* DDC bus active pull-up control */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x3e), 0x74 }, /* TMDS PLL optimization */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x4e), 0x3b }, /* TMDS PLL optimization */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x57), 0x74 }, /* TMDS PLL optimization */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x58), 0x63 }, /* TMDS PLL optimization */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x8d), 0x18 }, /* equaliser */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x8e), 0x34 }, /* equaliser */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x93), 0x88 }, /* equaliser */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x94), 0x2e }, /* equaliser */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x96), 0x00 }, /* enable automatic EQ changing */
/* set ADI recommended settings for digitizer */
/* "ADV7604 Register Settings Recommendations (rev. 2.5, June 2010)" p. 17. */
{ ADV7604_REG(ADV7604_PAGE_AFE, 0x12), 0x7b }, /* ADC noise shaping filter controls */
{ ADV7604_REG(ADV7604_PAGE_AFE, 0x0c), 0x1f }, /* CP core gain controls */
{ ADV7604_REG(ADV7604_PAGE_CP, 0x3e), 0x04 }, /* CP core pre-gain control */
{ ADV7604_REG(ADV7604_PAGE_CP, 0xc3), 0x39 }, /* CP coast control. Graphics mode */
{ ADV7604_REG(ADV7604_PAGE_CP, 0x40), 0x5c }, /* CP core pre-gain control. Graphics mode */
{ ADV7604_REG_SEQ_TERM, 0 },
};
static const struct adv7604_reg_seq adv7604_recommended_settings_hdmi[] = {
/* set ADI recommended settings for HDMI: */
/* "ADV7604 Register Settings Recommendations (rev. 2.5, June 2010)" p. 4. */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x0d), 0x84 }, /* HDMI filter optimization */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x3d), 0x10 }, /* DDC bus active pull-up control */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x3e), 0x39 }, /* TMDS PLL optimization */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x4e), 0x3b }, /* TMDS PLL optimization */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x57), 0xb6 }, /* TMDS PLL optimization */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x58), 0x03 }, /* TMDS PLL optimization */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x8d), 0x18 }, /* equaliser */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x8e), 0x34 }, /* equaliser */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x93), 0x8b }, /* equaliser */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x94), 0x2d }, /* equaliser */
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x96), 0x01 }, /* enable automatic EQ changing */
/* reset ADI recommended settings for digitizer */
/* "ADV7604 Register Settings Recommendations (rev. 2.5, June 2010)" p. 17. */
{ ADV7604_REG(ADV7604_PAGE_AFE, 0x12), 0xfb }, /* ADC noise shaping filter controls */
{ ADV7604_REG(ADV7604_PAGE_AFE, 0x0c), 0x0d }, /* CP core gain controls */
{ ADV7604_REG_SEQ_TERM, 0 },
};
static const struct adv7604_reg_seq adv7611_recommended_settings_hdmi[] = {
/* ADV7611 Register Settings Recommendations Rev 1.5, May 2014 */
{ ADV7604_REG(ADV7604_PAGE_CP, 0x6c), 0x00 },
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x9b), 0x03 },
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x6f), 0x08 },
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x85), 0x1f },
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x87), 0x70 },
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x57), 0xda },
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x58), 0x01 },
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x03), 0x98 },
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x4c), 0x44 },
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x8d), 0x04 },
{ ADV7604_REG(ADV7604_PAGE_HDMI, 0x8e), 0x1e },
{ ADV7604_REG_SEQ_TERM, 0 },
};
static const struct adv7604_chip_info adv7604_chip_info[] = {
[ADV7604] = {
.type = ADV7604,
.has_afe = true,
.max_port = ADV7604_PAD_VGA_COMP,
.num_dv_ports = 4,
.edid_enable_reg = 0x77,
.edid_status_reg = 0x7d,
.lcf_reg = 0xb3,
.tdms_lock_mask = 0xe0,
.cable_det_mask = 0x1e,
.fmt_change_digital_mask = 0xc1,
.formats = adv7604_formats,
.nformats = ARRAY_SIZE(adv7604_formats),
.set_termination = adv7604_set_termination,
.setup_irqs = adv7604_setup_irqs,
.read_hdmi_pixelclock = adv7604_read_hdmi_pixelclock,
.read_cable_det = adv7604_read_cable_det,
.recommended_settings = {
[0] = adv7604_recommended_settings_afe,
[1] = adv7604_recommended_settings_hdmi,
},
.num_recommended_settings = {
[0] = ARRAY_SIZE(adv7604_recommended_settings_afe),
[1] = ARRAY_SIZE(adv7604_recommended_settings_hdmi),
},
.page_mask = BIT(ADV7604_PAGE_IO) | BIT(ADV7604_PAGE_AVLINK) |
BIT(ADV7604_PAGE_CEC) | BIT(ADV7604_PAGE_INFOFRAME) |
BIT(ADV7604_PAGE_ESDP) | BIT(ADV7604_PAGE_DPP) |
BIT(ADV7604_PAGE_AFE) | BIT(ADV7604_PAGE_REP) |
BIT(ADV7604_PAGE_EDID) | BIT(ADV7604_PAGE_HDMI) |
BIT(ADV7604_PAGE_TEST) | BIT(ADV7604_PAGE_CP) |
BIT(ADV7604_PAGE_VDP),
},
[ADV7611] = {
.type = ADV7611,
.has_afe = false,
.max_port = ADV7604_PAD_HDMI_PORT_A,
.num_dv_ports = 1,
.edid_enable_reg = 0x74,
.edid_status_reg = 0x76,
.lcf_reg = 0xa3,
.tdms_lock_mask = 0x43,
.cable_det_mask = 0x01,
.fmt_change_digital_mask = 0x03,
.formats = adv7611_formats,
.nformats = ARRAY_SIZE(adv7611_formats),
.set_termination = adv7611_set_termination,
.setup_irqs = adv7611_setup_irqs,
.read_hdmi_pixelclock = adv7611_read_hdmi_pixelclock,
.read_cable_det = adv7611_read_cable_det,
.recommended_settings = {
[1] = adv7611_recommended_settings_hdmi,
},
.num_recommended_settings = {
[1] = ARRAY_SIZE(adv7611_recommended_settings_hdmi),
},
.page_mask = BIT(ADV7604_PAGE_IO) | BIT(ADV7604_PAGE_CEC) |
BIT(ADV7604_PAGE_INFOFRAME) | BIT(ADV7604_PAGE_AFE) |
BIT(ADV7604_PAGE_REP) | BIT(ADV7604_PAGE_EDID) |
BIT(ADV7604_PAGE_HDMI) | BIT(ADV7604_PAGE_CP),
},
};
static struct i2c_device_id adv7604_i2c_id[] = {
{ "adv7604", (kernel_ulong_t)&adv7604_chip_info[ADV7604] },
{ "adv7611", (kernel_ulong_t)&adv7604_chip_info[ADV7611] },
{ }
};
MODULE_DEVICE_TABLE(i2c, adv7604_i2c_id);
static struct of_device_id adv7604_of_id[] __maybe_unused = {
{ .compatible = "adi,adv7611", .data = &adv7604_chip_info[ADV7611] },
{ }
};
MODULE_DEVICE_TABLE(of, adv7604_of_id);
static int adv7604_parse_dt(struct adv7604_state *state)
{
struct v4l2_of_endpoint bus_cfg;
struct device_node *endpoint;
struct device_node *np;
unsigned int flags;
np = state->i2c_clients[ADV7604_PAGE_IO]->dev.of_node;
/* Parse the endpoint. */
endpoint = of_graph_get_next_endpoint(np, NULL);
if (!endpoint)
return -EINVAL;
v4l2_of_parse_endpoint(endpoint, &bus_cfg);
of_node_put(endpoint);
flags = bus_cfg.bus.parallel.flags;
if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)
state->pdata.inv_hs_pol = 1;
if (flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH)
state->pdata.inv_vs_pol = 1;
if (flags & V4L2_MBUS_PCLK_SAMPLE_RISING)
state->pdata.inv_llc_pol = 1;
if (bus_cfg.bus_type == V4L2_MBUS_BT656) {
state->pdata.insert_av_codes = 1;
state->pdata.op_656_range = 1;
}
/* Disable the interrupt for now as no DT-based board uses it. */
state->pdata.int1_config = ADV7604_INT1_CONFIG_DISABLED;
/* Use the default I2C addresses. */
state->pdata.i2c_addresses[ADV7604_PAGE_AVLINK] = 0x42;
state->pdata.i2c_addresses[ADV7604_PAGE_CEC] = 0x40;
state->pdata.i2c_addresses[ADV7604_PAGE_INFOFRAME] = 0x3e;
state->pdata.i2c_addresses[ADV7604_PAGE_ESDP] = 0x38;
state->pdata.i2c_addresses[ADV7604_PAGE_DPP] = 0x3c;
state->pdata.i2c_addresses[ADV7604_PAGE_AFE] = 0x26;
state->pdata.i2c_addresses[ADV7604_PAGE_REP] = 0x32;
state->pdata.i2c_addresses[ADV7604_PAGE_EDID] = 0x36;
state->pdata.i2c_addresses[ADV7604_PAGE_HDMI] = 0x34;
state->pdata.i2c_addresses[ADV7604_PAGE_TEST] = 0x30;
state->pdata.i2c_addresses[ADV7604_PAGE_CP] = 0x22;
state->pdata.i2c_addresses[ADV7604_PAGE_VDP] = 0x24;
/* Hardcode the remaining platform data fields. */
state->pdata.disable_pwrdnb = 0;
state->pdata.disable_cable_det_rst = 0;
state->pdata.default_input = -1;
state->pdata.blank_data = 1;
state->pdata.alt_data_sat = 1;
state->pdata.op_format_mode_sel = ADV7604_OP_FORMAT_MODE0;
state->pdata.bus_order = ADV7604_BUS_ORDER_RGB;
return 0;
}
static int adv7604_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
static const struct v4l2_dv_timings cea640x480 =
V4L2_DV_BT_CEA_640X480P59_94;
struct adv7604_state *state;
struct v4l2_ctrl_handler *hdl;
struct v4l2_subdev *sd;
unsigned int i;
u16 val;
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 adv7604 client on address 0x%x\n",
client->addr << 1);
state = devm_kzalloc(&client->dev, sizeof(*state), GFP_KERNEL);
if (!state) {
v4l_err(client, "Could not allocate adv7604_state memory!\n");
return -ENOMEM;
}
state->i2c_clients[ADV7604_PAGE_IO] = client;
/* initialize variables */
state->restart_stdi_once = true;
state->selected_input = ~0;
if (IS_ENABLED(CONFIG_OF) && client->dev.of_node) {
const struct of_device_id *oid;
oid = of_match_node(adv7604_of_id, client->dev.of_node);
state->info = oid->data;
err = adv7604_parse_dt(state);
if (err < 0) {
v4l_err(client, "DT parsing error\n");
return err;
}
} else if (client->dev.platform_data) {
struct adv7604_platform_data *pdata = client->dev.platform_data;
state->info = (const struct adv7604_chip_info *)id->driver_data;
state->pdata = *pdata;
} else {
v4l_err(client, "No platform data!\n");
return -ENODEV;
}
/* Request GPIOs. */
for (i = 0; i < state->info->num_dv_ports; ++i) {
state->hpd_gpio[i] =
devm_gpiod_get_index(&client->dev, "hpd", i);
if (IS_ERR(state->hpd_gpio[i]))
continue;
gpiod_direction_output(state->hpd_gpio[i], 0);
v4l_info(client, "Handling HPD %u GPIO\n", i);
}
state->timings = cea640x480;
state->format = adv7604_format_info(state, V4L2_MBUS_FMT_YUYV8_2X8);
sd = &state->sd;
v4l2_i2c_subdev_init(sd, client, &adv7604_ops);
snprintf(sd->name, sizeof(sd->name), "%s %d-%04x",
id->name, i2c_adapter_id(client->adapter),
client->addr);
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
/*
* Verify that the chip is present. On ADV7604 the RD_INFO register only
* identifies the revision, while on ADV7611 it identifies the model as
* well. Use the HDMI slave address on ADV7604 and RD_INFO on ADV7611.
*/
if (state->info->type == ADV7604) {
val = adv_smbus_read_byte_data_check(client, 0xfb, false);
if (val != 0x68) {
v4l2_info(sd, "not an adv7604 on address 0x%x\n",
client->addr << 1);
return -ENODEV;
}
} else {
val = (adv_smbus_read_byte_data_check(client, 0xea, false) << 8)
| (adv_smbus_read_byte_data_check(client, 0xeb, false) << 0);
if (val != 0x2051) {
v4l2_info(sd, "not an adv7611 on address 0x%x\n",
client->addr << 1);
return -ENODEV;
}
}
/* control handlers */
hdl = &state->hdl;
v4l2_ctrl_handler_init(hdl, adv7604_has_afe(state) ? 9 : 8);
v4l2_ctrl_new_std(hdl, &adv7604_ctrl_ops,
V4L2_CID_BRIGHTNESS, -128, 127, 1, 0);
v4l2_ctrl_new_std(hdl, &adv7604_ctrl_ops,
V4L2_CID_CONTRAST, 0, 255, 1, 128);
v4l2_ctrl_new_std(hdl, &adv7604_ctrl_ops,
V4L2_CID_SATURATION, 0, 255, 1, 128);
v4l2_ctrl_new_std(hdl, &adv7604_ctrl_ops,
V4L2_CID_HUE, 0, 128, 1, 0);
/* private controls */
state->detect_tx_5v_ctrl = v4l2_ctrl_new_std(hdl, NULL,
V4L2_CID_DV_RX_POWER_PRESENT, 0,
(1 << state->info->num_dv_ports) - 1, 0, 0);
state->rgb_quantization_range_ctrl =
v4l2_ctrl_new_std_menu(hdl, &adv7604_ctrl_ops,
V4L2_CID_DV_RX_RGB_RANGE, V4L2_DV_RGB_RANGE_FULL,
0, V4L2_DV_RGB_RANGE_AUTO);
/* custom controls */
if (adv7604_has_afe(state))
state->analog_sampling_phase_ctrl =
v4l2_ctrl_new_custom(hdl, &adv7604_ctrl_analog_sampling_phase, NULL);
state->free_run_color_manual_ctrl =
v4l2_ctrl_new_custom(hdl, &adv7604_ctrl_free_run_color_manual, NULL);
state->free_run_color_ctrl =
v4l2_ctrl_new_custom(hdl, &adv7604_ctrl_free_run_color, NULL);
sd->ctrl_handler = hdl;
if (hdl->error) {
err = hdl->error;
goto err_hdl;
}
state->detect_tx_5v_ctrl->is_private = true;
state->rgb_quantization_range_ctrl->is_private = true;
if (adv7604_has_afe(state))
state->analog_sampling_phase_ctrl->is_private = true;
state->free_run_color_manual_ctrl->is_private = true;
state->free_run_color_ctrl->is_private = true;
if (adv7604_s_detect_tx_5v_ctrl(sd)) {
err = -ENODEV;
goto err_hdl;
}
for (i = 1; i < ADV7604_PAGE_MAX; ++i) {
if (!(BIT(i) & state->info->page_mask))
continue;
state->i2c_clients[i] =
adv7604_dummy_client(sd, state->pdata.i2c_addresses[i],
0xf2 + i);
if (state->i2c_clients[i] == NULL) {
err = -ENOMEM;
v4l2_err(sd, "failed to create i2c client %u\n", i);
goto err_i2c;
}
}
/* work queues */
state->work_queues = create_singlethread_workqueue(client->name);
if (!state->work_queues) {
v4l2_err(sd, "Could not create work queue\n");
err = -ENOMEM;
goto err_i2c;
}
INIT_DELAYED_WORK(&state->delayed_work_enable_hotplug,
adv7604_delayed_work_enable_hotplug);
state->source_pad = state->info->num_dv_ports
+ (state->info->has_afe ? 2 : 0);
for (i = 0; i < state->source_pad; ++i)
state->pads[i].flags = MEDIA_PAD_FL_SINK;
state->pads[state->source_pad].flags = MEDIA_PAD_FL_SOURCE;
err = media_entity_init(&sd->entity, state->source_pad + 1,
state->pads, 0);
if (err)
goto err_work_queues;
err = adv7604_core_init(sd);
if (err)
goto err_entity;
v4l2_info(sd, "%s found @ 0x%x (%s)\n", client->name,
client->addr << 1, client->adapter->name);
err = v4l2_async_register_subdev(sd);
if (err)
goto err_entity;
return 0;
err_entity:
media_entity_cleanup(&sd->entity);
err_work_queues:
cancel_delayed_work(&state->delayed_work_enable_hotplug);
destroy_workqueue(state->work_queues);
err_i2c:
adv7604_unregister_clients(state);
err_hdl:
v4l2_ctrl_handler_free(hdl);
return err;
}
/* ----------------------------------------------------------------------- */
static int adv7604_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct adv7604_state *state = to_state(sd);
cancel_delayed_work(&state->delayed_work_enable_hotplug);
destroy_workqueue(state->work_queues);
v4l2_async_unregister_subdev(sd);
v4l2_device_unregister_subdev(sd);
media_entity_cleanup(&sd->entity);
adv7604_unregister_clients(to_state(sd));
v4l2_ctrl_handler_free(sd->ctrl_handler);
return 0;
}
/* ----------------------------------------------------------------------- */
static struct i2c_driver adv7604_driver = {
.driver = {
.owner = THIS_MODULE,
.name = "adv7604",
.of_match_table = of_match_ptr(adv7604_of_id),
},
.probe = adv7604_probe,
.remove = adv7604_remove,
.id_table = adv7604_i2c_id,
};
module_i2c_driver(adv7604_driver);
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