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avt-csi2.c
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2022 Avnet EMG GmbH
* Copyright (C) 2022 - 2024 Allied Vision Technologies GmbH
*/
/*
* Allied Vision CSI2 Camera
*
* 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.
*
*/
//#define DEBUG
#define ENABLE_STEPWISE_IMAGE_SIZE
#define AVT_MAX_FORMAT_ENTRIES 40
#include <asm/unaligned.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/version.h>
#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/clkdev.h>
#include <linux/ctype.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/kthread.h>
#include <linux/regmap.h>
//#include <linux/sched/task.h>
#include <linux/workqueue.h>
#include <linux/of_device.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/gpio/consumer.h>
#include <media/v4l2-async.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-event.h>
#include <media/v4l2-fwnode.h>
#include <media/v4l2-subdev.h>
#include <media/v4l2-rect.h>
#include <linux/lcm.h>
#include <linux/crc32.h>
#include <linux/kthread.h>
#include <linux/semaphore.h>
#include "avt-mipi-csi2.h"
// only for dma_get_cache_alignment();
#include <linux/dma-mapping.h>
#include "avt-csi2.h"
#define AVT_DBG_LVL 2
#ifdef DEBUG
static int debug = AVT_DBG_LVL;
#else
static int debug = 0;
#endif
module_param(debug, int, 0644); /* S_IRUGO */
MODULE_PARM_DESC(debug, "Debug level (0-2)");
static int add_wait_time_ms = 2000;
module_param(add_wait_time_ms, int, 0600);
#define avt_dbg(sd, fmt, args...) \
v4l2_dbg(AVT_DBG_LVL, debug, sd, "%s[%d]: " fmt "", \
__func__, __LINE__, ##args)
#define avt_err(sd, fmt, args...) \
v4l2_err(sd, "%s[%d]: " fmt "", __func__, __LINE__, ##args)
#define avt_warn(sd, fmt, args...) \
v4l2_warn(sd, "%s[%d]: " fmt "", __func__, __LINE__, ##args)
#define avt_info(sd, fmt, args...) \
v4l2_info(sd, "%s[%d]: " fmt "", __func__, __LINE__, ##args)
#define adev_info(dev, fmt, args...) \
dev_info(dev, "%s[%d]: " fmt "", __func__, __LINE__, ##args)
struct avt_val64
{
union
{
__s8 s8[8];
__s16 s16[4];
__s32 s32[2];
__s64 s64;
__u8 u8[8];
__u16 u16[4];
__u32 u32[2];
__u64 u64;
};
} __attribute__((packed));
#define BCRM_WAIT_HANDSHAKE_TIMEOUT_MS 3000
#define MODE_SWITCH_TIMEOUT_US 5 * USEC_PER_SEC
#define MODE_SWTICH_POLL_INTERVAL_US 10 * USEC_PER_MSEC
//Define formats for GenICam for CSI2, if they not exist
#ifndef V4L2_PIX_FMT_CUSTOM
#define V4L2_PIX_FMT_CUSTOM v4l2_fourcc('T', 'P', '3', '1') /* 0x31 mipi datatype */
#endif
#ifndef MEDIA_BUS_FMT_CUSTOM
#define MEDIA_BUS_FMT_CUSTOM 0x5002
#endif
#define AVT_BINNING_MODE_FLAG_AVERAGE 0b01
#define AVT_BINNING_MODE_FLAG_SUM 0b10
enum avt_binning_type {
NONE = -1,
DIGITAL,
SENSOR,
};
enum avt_reset_type {
RESET_TYPE_SOFT,
RESET_TYPE_HARD
};
struct avt_binning_setting {
int inq;
u8 sel;
u32 hfact;
u32 vfact;
enum avt_binning_type type;
};
struct avt_mode_info
{
u32 hact;
u32 htot;
u32 vact;
u32 vtot;
};
static const long binning_modes_enabled[AVT_BINNING_TYPE_CNT] = {
[DIGITAL] = AVT_BINNING_MODE_FLAG_AVERAGE | AVT_BINNING_MODE_FLAG_SUM,
[SENSOR] = AVT_BINNING_MODE_FLAG_SUM,
};
static const char * binning_type_str[AVT_BINNING_TYPE_CNT] = {
[DIGITAL] = "Digital",
[SENSOR] = "Sensor",
};
static const struct avt_binning_setting avt_binning_settings[] = {
{
.inq = -1,
.sel = 0,
.vfact = 1,
.hfact = 1,
.type = NONE,
}, {
.inq = 0,
.sel = 1,
.vfact = 2,
.hfact = 2,
.type = DIGITAL,
}, {
.inq = 1,
.sel = 2,
.vfact = 3,
.hfact = 3,
.type = DIGITAL,
}, {
.inq = 2,
.sel = 3,
.vfact = 4,
.hfact = 4,
.type = DIGITAL,
}, {
.inq = 3,
.sel = 4,
.vfact = 5,
.hfact = 5,
.type = DIGITAL,
}, {
.inq = 4,
.sel = 5,
.vfact = 6,
.hfact = 6,
.type = DIGITAL,
}, {
.inq = 5,
.sel = 6,
.vfact = 7,
.hfact = 7,
.type = DIGITAL,
}, {
.inq = 6,
.sel = 7,
.vfact = 8,
.hfact = 8,
.type = DIGITAL,
}, {
.inq = 7,
.sel = 8,
.vfact = 2,
.hfact = 2,
.type = SENSOR,
}, {
.inq = 8,
.sel = 9,
.vfact = 4,
.hfact = 4,
.type = SENSOR,
},
};
static const size_t avt_binning_setting_cnt = ARRAY_SIZE(avt_binning_settings);
static int bcrm_write(struct avt_dev *camera, u16 reg, u64 val, size_t len);
static int avt_detect(struct i2c_client *client);
static int avt_reset(struct avt_dev *camera, enum avt_reset_type reset_type);
static void avt_dphy_reset(struct avt_dev *camera, bool bResetPhy);
static void avt_ctrl_changed(struct avt_dev *camera, const struct v4l2_ctrl * const ctrl);
static struct v4l2_ctrl* avt_ctrl_find(struct avt_dev *camera,u32 id);
static int avt_write_media_bus_format(struct avt_dev *camera, int code);
static int avt_get_sensor_capabilities(struct v4l2_subdev *sd);
#define DUMP_BCRM_REG8(CLIENT, BCRM_REG) dump_bcrm_reg(CLIENT, (BCRM_REG), (#BCRM_REG), AV_CAM_DATA_SIZE_8)
#define DUMP_BCRM_REG16(CLIENT, BCRM_REG) dump_bcrm_reg(CLIENT, (BCRM_REG), (#BCRM_REG), AV_CAM_DATA_SIZE_16)
#define DUMP_BCRM_REG32(CLIENT, BCRM_REG) dump_bcrm_reg(CLIENT, (BCRM_REG), (#BCRM_REG), AV_CAM_DATA_SIZE_32)
#define DUMP_BCRM_REG64(CLIENT, BCRM_REG) dump_bcrm_reg(CLIENT, (BCRM_REG), (#BCRM_REG), AV_CAM_DATA_SIZE_64)
static void dump_bcrm_reg(struct i2c_client *client, u16 nOffset, const char *pRegName, int regsize);
static inline struct avt_dev* to_avt_dev(struct v4l2_subdev *sd)
{
#ifdef NVIDIA
return container_of(sd, struct avt_dev, s_data.subdev);
#else
return container_of(sd, struct avt_dev, subdev);
#endif
}
static inline struct avt_dev* client_to_avt_dev(struct i2c_client *client)
{
return to_avt_dev(i2c_get_clientdata(client));
}
static inline struct v4l2_subdev* get_sd(struct avt_dev *priv)
{
#ifdef NVIDIA
return &priv->s_data.subdev;
#else
return &priv->subdev;
#endif // #ifdef NVIDIA
}
static ssize_t avt_read_raw(struct avt_dev *camera, u16 reg,
u8 *buf, size_t len)
{
int ret;
dev_dbg(&camera->i2c_client->dev, "read raw reg %x len %lu", reg, len);
ret = regmap_bulk_read(camera->regmap, reg, buf, len);
if (ret) {
return ret;
}
return len;
}
static ssize_t avt_write_raw(struct avt_dev *camera, u16 reg,
const u8 *buf, size_t len)
{
int ret;
dev_dbg(&camera->i2c_client->dev, "write raw reg %x len %lu", reg, len);
ret = regmap_bulk_write(camera->regmap, reg, buf, len);
if (ret) {
return ret;
}
return len;
}
static ssize_t avt_read(struct avt_dev *camera, u16 reg, void *val, size_t len)
{
u8 tmp[8];
int ret;
ret = avt_read_raw(camera, reg, tmp, len);
if (ret < 0)
goto out;
switch (len)
{
case 1:
*((u8*)val) = tmp[0];
break;
case 2:
*((u16*)val) = get_unaligned_be16(tmp);
break;
case 4:
*((u32*)val) = get_unaligned_be32(tmp);
break;
case 8:
*((u64*)val) = get_unaligned_be64(tmp);
break;
default:
break;
}
// TODO: For compatibility reason, check if can be removed
ret = 0;
out:
return ret;
}
static inline ssize_t avt_read8(struct avt_dev *camera, u16 reg, u8 *val)
{
return avt_read(camera, reg, (u8*)val, sizeof(*val));
}
static inline ssize_t avt_read16(struct avt_dev *camera, u16 reg, u16 *val)
{
return avt_read(camera, reg, (u8*)val, sizeof(*val));
}
static inline ssize_t avt_read32(struct avt_dev *camera, u16 reg, u32 *val)
{
return avt_read(camera, reg, (u8*)val, sizeof(*val));
}
static inline ssize_t avt_read64(struct avt_dev *camera, u16 reg, u64 *val)
{
return avt_read(camera, reg, (u8*)val, sizeof(*val));
}
static ssize_t avt_write(struct avt_dev *camera, u16 reg, u64 val, size_t len)
{
struct device *dev = &camera->i2c_client->dev;
u8 buf[8];
int ret;
switch (len)
{
// 8-bit register
case 1:
buf[0] = val;
break;
// 16-bit register
case 2:
put_unaligned_be16(val, buf);
break;
// 32-bit register
case 4:
put_unaligned_be32(val, buf);
break;
// 64-bit register
case 8:
put_unaligned_be64(val, buf);
break;
default:
dev_err(dev, "%s: Invalid data size!\n", __func__);
return -EINVAL;
}
ret = avt_write_raw(camera, reg, buf, len);
// TODO: For compatibility reason, check if can be removed
if (ret < 0)
return ret;
return 0;
}
static inline u16 get_bcrm_addr(struct avt_dev *camera,u16 reg)
{
return camera->cci_reg.reg.bcrm_addr + reg;
}
static inline int bcrm_read(struct avt_dev *camera, u16 reg, u8 *val, size_t len)
{
WARN_ON(camera->mode != AVT_BCRM_MODE);
return avt_read(camera, get_bcrm_addr(camera, reg), val, len);
}
static inline int bcrm_read8(struct avt_dev *camera,u16 reg,u8 *val)
{
return bcrm_read(camera, reg, (u8*)val, sizeof(*val));
}
static inline int bcrm_read16(struct avt_dev *camera,u16 reg,u16 *val)
{
return bcrm_read(camera, reg, (u8*)val, sizeof(*val));
}
static inline int bcrm_read32(struct avt_dev *camera,u16 reg,u32 *val)
{
return bcrm_read(camera, reg, (u8*)val, sizeof(*val));
}
static inline int bcrm_read64(struct avt_dev *camera,u16 reg,u64 *val)
{
return bcrm_read(camera, reg, (u8*)val, sizeof(*val));
}
static inline int bcrm_write8(struct avt_dev *camera, u16 reg, u8 val)
{
return bcrm_write(camera, reg, val, sizeof(val));
}
static inline int bcrm_write16(struct avt_dev *camera, u16 reg, u16 val)
{
return bcrm_write(camera, reg, val, sizeof(val));
}
static inline int bcrm_write32(struct avt_dev *camera, u16 reg, u32 val)
{
return bcrm_write(camera, reg, val, sizeof(val));
}
static inline int bcrm_write64(struct avt_dev *camera, u16 reg, u64 val)
{
return bcrm_write(camera, reg, val, sizeof(val));
}
static int avt_change_mode(struct avt_dev *camera, u8 req_mode)
{
int ret;
u8 cur_mode;
if (req_mode == camera->mode)
return 0;
ret = avt_write(camera, GENCP_CHANGEMODE_8W, req_mode, AV_CAM_DATA_SIZE_8);
if (ret < 0)
goto out;
ret = read_poll_timeout(avt_read8, ret, cur_mode == req_mode,
MODE_SWTICH_POLL_INTERVAL_US,
MODE_SWITCH_TIMEOUT_US, true,
camera, GENCP_CURRENTMODE_8R, &cur_mode);
if (ret < 0)
goto out;
camera->mode = req_mode;
if (req_mode == AVT_BCRM_MODE) {
const int mbus_code = camera->mbus_framefmt.code;
ret = avt_write_media_bus_format(camera, mbus_code);
if (ret < 0) {
avt_err(get_sd(camera),"Failed to set pixelformat!");
}
}
out:
return ret;
}
static void bcrm_dump(struct i2c_client *client)
{
/* Dump all BCRM registers */
DUMP_BCRM_REG32(client, BCRM_VERSION_32R);
DUMP_BCRM_REG64(client, BCRM_FEATURE_INQUIRY_64R);
DUMP_BCRM_REG64(client, BCRM_DEVICE_FIRMWARE_VERSION_64R);
DUMP_BCRM_REG8(client, BCRM_WRITE_HANDSHAKE_8RW);
/* Streaming Control Registers */
DUMP_BCRM_REG8(client, BCRM_SUPPORTED_CSI2_LANE_COUNTS_8R);
DUMP_BCRM_REG8(client, BCRM_CSI2_LANE_COUNT_8RW);
DUMP_BCRM_REG32(client, BCRM_CSI2_CLOCK_MIN_32R);
DUMP_BCRM_REG32(client, BCRM_CSI2_CLOCK_MAX_32R);
DUMP_BCRM_REG32(client, BCRM_CSI2_CLOCK_32RW);
DUMP_BCRM_REG32(client, BCRM_BUFFER_SIZE_32R);
DUMP_BCRM_REG32(client, BCRM_PHY_RESET_8RW);
DUMP_BCRM_REG32(client, BCRM_STREAM_ON_DELAY_32RW);
DUMP_BCRM_REG32(client, BCRM_IPU_X_MIN_32W);
DUMP_BCRM_REG32(client, BCRM_IPU_X_MAX_32W);
DUMP_BCRM_REG32(client, BCRM_IPU_X_INC_32W);
DUMP_BCRM_REG32(client, BCRM_IPU_Y_MIN_32W);
DUMP_BCRM_REG32(client, BCRM_IPU_Y_MAX_32W);
DUMP_BCRM_REG32(client, BCRM_IPU_Y_INC_32W);
DUMP_BCRM_REG32(client, BCRM_IPU_X_32R);
DUMP_BCRM_REG32(client, BCRM_IPU_Y_32R);
/* Acquisition Control Registers */
DUMP_BCRM_REG8(client, BCRM_ACQUISITION_START_8RW);
DUMP_BCRM_REG8(client, BCRM_ACQUISITION_STOP_8RW);
DUMP_BCRM_REG8(client, BCRM_ACQUISITION_ABORT_8RW);
DUMP_BCRM_REG8(client, BCRM_ACQUISITION_STATUS_8R);
DUMP_BCRM_REG64(client, BCRM_ACQUISITION_FRAME_RATE_64RW);
DUMP_BCRM_REG64(client, BCRM_ACQUISITION_FRAME_RATE_MIN_64R);
DUMP_BCRM_REG64(client, BCRM_ACQUISITION_FRAME_RATE_MAX_64R);
DUMP_BCRM_REG64(client, BCRM_ACQUISITION_FRAME_RATE_INC_64R);
DUMP_BCRM_REG8(client, BCRM_ACQUISITION_FRAME_RATE_ENABLE_8RW);
DUMP_BCRM_REG8(client, BCRM_FRAME_START_TRIGGER_MODE_8RW);
DUMP_BCRM_REG8(client, BCRM_FRAME_START_TRIGGER_SOURCE_8RW);
DUMP_BCRM_REG8(client, BCRM_FRAME_START_TRIGGER_ACTIVATION_8RW);
DUMP_BCRM_REG8(client, BCRM_FRAME_START_TRIGGER_SOFTWARE_8W);
DUMP_BCRM_REG32(client, BCRM_FRAME_START_TRIGGER_DELAY_32RW);
DUMP_BCRM_REG8(client, BCRM_EXPOSURE_ACTIVE_LINE_MODE_8RW);
DUMP_BCRM_REG8(client, BCRM_EXPOSURE_ACTIVE_LINE_SELECTOR_8RW);
DUMP_BCRM_REG32(client, BCRM_LINE_CONFIGURATION_32RW);
/* Image Format Control Registers */
DUMP_BCRM_REG32(client, BCRM_IMG_WIDTH_32RW);
DUMP_BCRM_REG32(client, BCRM_IMG_WIDTH_MIN_32R);
DUMP_BCRM_REG32(client, BCRM_IMG_WIDTH_MAX_32R);
DUMP_BCRM_REG32(client, BCRM_IMG_WIDTH_INC_32R);
DUMP_BCRM_REG32(client, BCRM_IMG_HEIGHT_32RW);
DUMP_BCRM_REG32(client, BCRM_IMG_HEIGHT_MIN_32R);
DUMP_BCRM_REG32(client, BCRM_IMG_HEIGHT_MAX_32R);
DUMP_BCRM_REG32(client, BCRM_IMG_HEIGHT_INC_32R);
DUMP_BCRM_REG32(client, BCRM_IMG_OFFSET_X_32RW);
DUMP_BCRM_REG32(client, BCRM_IMG_OFFSET_X_MIN_32R);
DUMP_BCRM_REG32(client, BCRM_IMG_OFFSET_X_MAX_32R);
DUMP_BCRM_REG32(client, BCRM_IMG_OFFSET_X_INC_32R);
DUMP_BCRM_REG32(client, BCRM_IMG_OFFSET_Y_32RW);
DUMP_BCRM_REG32(client, BCRM_IMG_OFFSET_Y_MIN_32R);
DUMP_BCRM_REG32(client, BCRM_IMG_OFFSET_Y_MAX_32R);
DUMP_BCRM_REG32(client, BCRM_IMG_OFFSET_Y_INC_32R);
DUMP_BCRM_REG32(client, BCRM_IMG_MIPI_DATA_FORMAT_32RW);
DUMP_BCRM_REG64(client, BCRM_IMG_AVAILABLE_MIPI_DATA_FORMATS_64R);
DUMP_BCRM_REG8(client, BCRM_IMG_BAYER_PATTERN_INQUIRY_8R);
DUMP_BCRM_REG8(client, BCRM_IMG_BAYER_PATTERN_8RW);
DUMP_BCRM_REG8(client, BCRM_IMG_REVERSE_X_8RW);
DUMP_BCRM_REG8(client, BCRM_IMG_REVERSE_Y_8RW);
DUMP_BCRM_REG32(client, BCRM_SENSOR_WIDTH_32R);
DUMP_BCRM_REG32(client, BCRM_SENSOR_HEIGHT_32R);
DUMP_BCRM_REG32(client, BCRM_WIDTH_MAX_32R);
DUMP_BCRM_REG32(client, BCRM_HEIGHT_MAX_32R);
/* Brightness Control Registers */
DUMP_BCRM_REG64(client, BCRM_EXPOSURE_TIME_64RW);
DUMP_BCRM_REG64(client, BCRM_EXPOSURE_TIME_MIN_64R);
DUMP_BCRM_REG64(client, BCRM_EXPOSURE_TIME_MAX_64R);
DUMP_BCRM_REG64(client, BCRM_EXPOSURE_TIME_64RW);
DUMP_BCRM_REG8(client, BCRM_EXPOSURE_AUTO_8RW);
DUMP_BCRM_REG8(client, BCRM_INTENSITY_AUTO_PRECEDENCE_8RW);
DUMP_BCRM_REG32(client, BCRM_INTENSITY_AUTO_PRECEDENCE_VALUE_32RW);
DUMP_BCRM_REG32(client, BCRM_INTENSITY_AUTO_PRECEDENCE_MIN_32R);
DUMP_BCRM_REG32(client, BCRM_INTENSITY_AUTO_PRECEDENCE_MAX_32R);
DUMP_BCRM_REG32(client, BCRM_INTENSITY_AUTO_PRECEDENCE_INC_32R);
DUMP_BCRM_REG32(client, BCRM_BLACK_LEVEL_32RW);
DUMP_BCRM_REG32(client, BCRM_BLACK_LEVEL_MIN_32R);
DUMP_BCRM_REG32(client, BCRM_BLACK_LEVEL_MAX_32R);
DUMP_BCRM_REG32(client, BCRM_BLACK_LEVEL_INC_32R);
DUMP_BCRM_REG64(client, BCRM_GAIN_64RW);
DUMP_BCRM_REG64(client, BCRM_GAIN_MIN_64R);
DUMP_BCRM_REG64(client, BCRM_GAIN_MAX_64R);
DUMP_BCRM_REG64(client, BCRM_GAIN_INC_64R);
DUMP_BCRM_REG8(client, BCRM_GAIN_AUTO_8RW);
DUMP_BCRM_REG64(client, BCRM_GAMMA_64RW);
DUMP_BCRM_REG64(client, BCRM_GAMMA_MIN_64R);
DUMP_BCRM_REG64(client, BCRM_GAMMA_MAX_64R);
DUMP_BCRM_REG64(client, BCRM_GAMMA_INC_64R);
DUMP_BCRM_REG32(client, BCRM_CONTRAST_VALUE_32RW);
DUMP_BCRM_REG32(client, BCRM_CONTRAST_VALUE_MIN_32R);
DUMP_BCRM_REG32(client, BCRM_CONTRAST_VALUE_MAX_32R);
DUMP_BCRM_REG32(client, BCRM_CONTRAST_VALUE_INC_32R);
/* Color Management Registers */
DUMP_BCRM_REG32(client, BCRM_SATURATION_32RW);
DUMP_BCRM_REG32(client, BCRM_SATURATION_MIN_32R);
DUMP_BCRM_REG32(client, BCRM_SATURATION_MAX_32R);
DUMP_BCRM_REG32(client, BCRM_SATURATION_INC_32R);
DUMP_BCRM_REG32(client, BCRM_HUE_32RW);
DUMP_BCRM_REG32(client, BCRM_HUE_MIN_32R);
DUMP_BCRM_REG32(client, BCRM_HUE_MAX_32R);
DUMP_BCRM_REG32(client, BCRM_HUE_INC_32R);
DUMP_BCRM_REG64(client, BCRM_ALL_BALANCE_RATIO_64RW);
DUMP_BCRM_REG64(client, BCRM_ALL_BALANCE_RATIO_MIN_64R);
DUMP_BCRM_REG64(client, BCRM_ALL_BALANCE_RATIO_MAX_64R);
DUMP_BCRM_REG64(client, BCRM_RED_BALANCE_RATIO_64RW);
DUMP_BCRM_REG64(client, BCRM_RED_BALANCE_RATIO_MIN_64R);
DUMP_BCRM_REG64(client, BCRM_RED_BALANCE_RATIO_MAX_64R);
DUMP_BCRM_REG64(client, BCRM_RED_BALANCE_RATIO_INC_64R);
DUMP_BCRM_REG64(client, BCRM_GREEN_BALANCE_RATIO_64RW);
DUMP_BCRM_REG64(client, BCRM_GREEN_BALANCE_RATIO_MIN_64R);
DUMP_BCRM_REG64(client, BCRM_GREEN_BALANCE_RATIO_MAX_64R);
DUMP_BCRM_REG64(client, BCRM_GREEN_BALANCE_RATIO_INC_64R);
DUMP_BCRM_REG64(client, BCRM_BLUE_BALANCE_RATIO_64RW);
DUMP_BCRM_REG64(client, BCRM_BLUE_BALANCE_RATIO_MIN_64R);
DUMP_BCRM_REG64(client, BCRM_BLUE_BALANCE_RATIO_MAX_64R);
DUMP_BCRM_REG64(client, BCRM_BLUE_BALANCE_RATIO_INC_64R);
DUMP_BCRM_REG8(client, BCRM_WHITE_BALANCE_AUTO_8RW);
/* Other Registers */
DUMP_BCRM_REG32(client, BCRM_SHARPNESS_32RW);
DUMP_BCRM_REG32(client, BCRM_SHARPNESS_MIN_32R);
DUMP_BCRM_REG32(client, BCRM_SHARPNESS_MAX_32R);
DUMP_BCRM_REG32(client, BCRM_SHARPNESS_INC_32R);
DUMP_BCRM_REG32(client, BCRM_DEVICE_TEMPERATURE_32R);
DUMP_BCRM_REG64(client, BCRM_EXPOSURE_AUTO_MIN_64RW);
DUMP_BCRM_REG64(client, BCRM_EXPOSURE_AUTO_MAX_64RW);
DUMP_BCRM_REG16(client, BCRM_BINNING_INQ_16R);
DUMP_BCRM_REG16(client, BCRM_BINNING_INQ_16R);
}
static void dump_bcrm_reg(struct i2c_client *client, u16 nOffset, const char *pRegName, int regsize)
{
struct avt_dev *camera = client_to_avt_dev(client);
int status = 0;
struct avt_val64 val64;
CLEAR(val64);
if (status >= 0)
switch (regsize)
{
case AV_CAM_DATA_SIZE_8:
bcrm_read8(camera, nOffset, &val64.u8[0]);
avt_info(get_sd(camera), "%44s: %u (0x%x)", pRegName, val64.u8[0], val64.u8[0]);
break;
case AV_CAM_DATA_SIZE_16:
bcrm_read16(camera, nOffset, &val64.u16[0]);
avt_info(get_sd(camera), "%44s: %u (0x%08x)", pRegName, val64.u16[0], val64.u16[0]);
break;
case AV_CAM_DATA_SIZE_32:
bcrm_read32(camera, nOffset, &val64.u32[0]);
avt_info(get_sd(camera), "%44s: %u (0x%08x)", pRegName, val64.u32[0], val64.u32[0]);
break;
case AV_CAM_DATA_SIZE_64:
bcrm_read64(camera, nOffset, &val64.u64);
avt_info(get_sd(camera), "%44s: %llu (0x%016llx)", pRegName, val64.u64, val64.u64);
break;
}
else
avt_err(get_sd(camera), "%s: ERROR", pRegName);
}
static bool bcrm_get_write_handshake_availibility(struct i2c_client *client)
{
struct avt_dev *camera = client_to_avt_dev(client);
u8 value = 0;
int status;
if (!camera)
{
avt_err(get_sd(camera), "camera == NULL!!!\n");
return -EINVAL;
}
/* check of camera supports write_done_handshake register */
status = bcrm_read8(camera, BCRM_WRITE_HANDSHAKE_8RW, &value);
if ((status >= 0) && (value & BCRM_HANDSHAKE_AVAILABLE_MASK))
{
avt_info(get_sd(camera), "BCRM write handshake supported!");
return true;
}
else
{
avt_info(get_sd(camera), "BCRM write handshake NOT supported!");
return false;
}
}
static int read_cci_registers(struct i2c_client *client)
{
struct avt_dev *camera = client_to_avt_dev(client);
int ret = 0;
uint32_t crc = 0;
uint32_t crc_byte_count = 0;
if (!camera)
{
avt_err(get_sd(camera), "camera == NULL!!!");
return -EINVAL;
}
mutex_lock(&camera->lock);
/*
* ToDO: Check against latest spec!!
* Avoid last 3 bytes read as its WRITE only register except
* CURRENT MODE REG
*/
/* Calculate byte per byte CRC from each reg up to the CRC reg */
crc_byte_count =
(uint32_t)((char *)&camera->cci_reg.reg.checksum - (char *)&camera->cci_reg);
avt_dbg(get_sd(camera), "crc_byte_count: %d", crc_byte_count);
avt_dbg(get_sd(camera), "0x%08X, 0x%08X",
cci_cmd_tbl[CCI_REGISTER_LAYOUT_VERSION].address,
cci_cmd_tbl[CHANGE_MODE].address);
// read only until CHANGE_MODE because it's writeonly
ret = avt_read_raw(camera, cci_cmd_tbl[CCI_REGISTER_LAYOUT_VERSION].address,
(char *)&camera->cci_reg, cci_cmd_tbl[CHANGE_MODE].address);
avt_info(get_sd(camera), "regmap_bulk_read(camera->regmap8, cci_cmd_tbl[CCI_REGISTER_LAYOUT_VERSION].address ret %d\n", ret);
avt_dbg(get_sd(camera), "0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X - 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X\n",
camera->cci_reg.buf[0x00], camera->cci_reg.buf[0x01], camera->cci_reg.buf[0x02], camera->cci_reg.buf[0x03],
camera->cci_reg.buf[0x04], camera->cci_reg.buf[0x05], camera->cci_reg.buf[0x06], camera->cci_reg.buf[0x07],
camera->cci_reg.buf[0x08], camera->cci_reg.buf[0x09], camera->cci_reg.buf[0x0a], camera->cci_reg.buf[0x0b],
camera->cci_reg.buf[0x0c], camera->cci_reg.buf[0x0d], camera->cci_reg.buf[0x0e], camera->cci_reg.buf[0x0f]);
avt_dbg(get_sd(camera), "0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X - 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X\n",
camera->cci_reg.buf[0x10], camera->cci_reg.buf[0x11], camera->cci_reg.buf[0x12], camera->cci_reg.buf[0x13],
camera->cci_reg.buf[0x14], camera->cci_reg.buf[0x15], camera->cci_reg.buf[0x16], camera->cci_reg.buf[0x17],
camera->cci_reg.buf[0x18], camera->cci_reg.buf[0x19], camera->cci_reg.buf[0x1a], camera->cci_reg.buf[0x1b],
camera->cci_reg.buf[0x1c], camera->cci_reg.buf[0x1d], camera->cci_reg.buf[0x1e], camera->cci_reg.buf[0x1f]);
avt_dbg(get_sd(camera), "0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X - 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X\n",
camera->cci_reg.buf[0x20], camera->cci_reg.buf[0x21], camera->cci_reg.buf[0x22], camera->cci_reg.buf[0x23],
camera->cci_reg.buf[0x24], camera->cci_reg.buf[0x25], camera->cci_reg.buf[0x26], camera->cci_reg.buf[0x27],
camera->cci_reg.buf[0x28], camera->cci_reg.buf[0x29], camera->cci_reg.buf[0x1a], camera->cci_reg.buf[0x2b],
camera->cci_reg.buf[0x2c], camera->cci_reg.buf[0x2d], camera->cci_reg.buf[0x2e], camera->cci_reg.buf[0x2f]);
avt_dbg(get_sd(camera), "0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X - 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X\n",
camera->cci_reg.buf[0x30], camera->cci_reg.buf[0x31], camera->cci_reg.buf[0x32], camera->cci_reg.buf[0x33],
camera->cci_reg.buf[0x34], camera->cci_reg.buf[0x35], camera->cci_reg.buf[0x36], camera->cci_reg.buf[0x37],
camera->cci_reg.buf[0x38], camera->cci_reg.buf[0x39], camera->cci_reg.buf[0x1a], camera->cci_reg.buf[0x3b],
camera->cci_reg.buf[0x3c], camera->cci_reg.buf[0x3d], camera->cci_reg.buf[0x3e], camera->cci_reg.buf[0x3f]);
if (ret < 0)
{
avt_err(get_sd(camera), "regmap_read failed (%d)\n", ret);
goto err_out;
}
/* CRC calculation */
crc = crc32(U32_MAX, &camera->cci_reg, crc_byte_count);
dev_info(&client->dev, "cci layout version b: 0x%08X\n",
camera->cci_reg.reg.layout_version);
/* Swap bytes if neccessary */
cpu_to_be32s(&camera->cci_reg.reg.layout_version);
dev_info(&client->dev, "cci layout version a: 0x%08X\n",
camera->cci_reg.reg.layout_version);
cpu_to_be64s(&camera->cci_reg.reg.device_capabilities.value);
cpu_to_be16s(&camera->cci_reg.reg.gcprm_address);
cpu_to_be16s(&camera->cci_reg.reg.bcrm_addr);
cpu_to_be32s(&camera->cci_reg.reg.checksum);
/* Check the checksum of received with calculated. */
if (crc != camera->cci_reg.reg.checksum)
{
avt_err(get_sd(camera), "wrong CCI CRC value! calculated = 0x%x, received = 0x%x\n",
crc, camera->cci_reg.reg.checksum);
ret = -EINVAL;
goto err_out;
}
avt_dbg(get_sd(camera), "cci layout version: 0x%08X\ncci device capabilities: %llx\ncci device guid: %s\ncci gcprm_address: 0x%x\n",
camera->cci_reg.reg.layout_version,
camera->cci_reg.reg.device_capabilities.value,
camera->cci_reg.reg.device_guid,
camera->cci_reg.reg.gcprm_address);
ret = 0;
err_out:
mutex_unlock(&camera->lock);
return ret;
}
static int read_gencp_registers(struct i2c_client *client)
{
struct avt_dev *camera = client_to_avt_dev(client);
int ret = 0;
uint32_t crc = 0;
uint32_t crc_byte_count = 0;
uint32_t i2c_reg;
uint32_t i2c_reg_size;
uint32_t i2c_reg_count;
char *i2c_reg_buf;
mutex_lock(&camera->lock);
avt_dbg(get_sd(camera), "+");
i2c_reg = camera->cci_reg.reg.gcprm_address + 0x0000;
i2c_reg_size = AV_CAM_REG_SIZE;
i2c_reg_count = sizeof(camera->gencp_reg);
i2c_reg_buf = (char *)&camera->gencp_reg;
/* Calculate CRC from each reg up to the CRC reg */
crc_byte_count =
(uint32_t)((char *)&camera->gencp_reg.checksum - (char *)&camera->gencp_reg);
ret = avt_read_raw(camera, camera->cci_reg.reg.gcprm_address + 0x0000,
(char *)&camera->gencp_reg, sizeof(camera->gencp_reg));
if (ret < 0)
{
avt_err(get_sd(camera), "regmap_read failed, ret %d", ret);
goto err_out;
}
crc = crc32(U32_MAX, &camera->gencp_reg, crc_byte_count);
be32_to_cpus(&camera->gencp_reg.gcprm_layout_version);
be16_to_cpus(&camera->gencp_reg.gencp_out_buffer_address);
be16_to_cpus(&camera->gencp_reg.gencp_in_buffer_address);
be16_to_cpus(&camera->gencp_reg.gencp_out_buffer_size);
be16_to_cpus(&camera->gencp_reg.gencp_in_buffer_size);
be32_to_cpus(&camera->gencp_reg.checksum);
if (crc != camera->gencp_reg.checksum)
{
avt_err(get_sd(camera), "wrong GENCP CRC value! calculated = 0x%x, received = 0x%x\n",
crc, camera->gencp_reg.checksum);
ret = -EINVAL;
goto err_out;
}
avt_dbg(get_sd(camera), "gcprm layout version: %x\n",
camera->gencp_reg.gcprm_layout_version);
avt_dbg(get_sd(camera), "gcprm out buf addr: %x\n",
camera->gencp_reg.gencp_out_buffer_address);
avt_dbg(get_sd(camera), "gcprm out buf size: %x\n",
camera->gencp_reg.gencp_out_buffer_size);
avt_dbg(get_sd(camera), "gcprm in buf addr: %x\n",
camera->gencp_reg.gencp_in_buffer_address);
avt_dbg(get_sd(camera), "gcprm in buf size: %x\n",
camera->gencp_reg.gencp_in_buffer_size);
err_out:
mutex_unlock(&camera->lock);
return ret;
}
static int cci_version_check(struct i2c_client *client)
{
struct avt_dev *camera = client_to_avt_dev(client);
uint32_t cci_minver, cci_majver;
int ret = 0;
mutex_lock(&camera->lock);
cci_minver = (camera->cci_reg.reg.layout_version & CCI_REG_LAYOUT_MINVER_MASK) >> CCI_REG_LAYOUT_MINVER_SHIFT;
if (cci_minver >= CCI_REG_LAYOUT_MINVER)
{
avt_dbg(get_sd(camera), "correct cci register minver: %d (0x%x)\n",
cci_minver, camera->cci_reg.reg.layout_version);
}
else
{
avt_err(get_sd(camera), "cci reg minver mismatch! read: %d (0x%x) expected: %d\n",
cci_minver, camera->cci_reg.reg.layout_version, CCI_REG_LAYOUT_MINVER);
ret = -EINVAL;
goto err_out;
}
cci_majver = (camera->cci_reg.reg.layout_version & CCI_REG_LAYOUT_MAJVER_MASK) >> CCI_REG_LAYOUT_MAJVER_SHIFT;
if (cci_majver == CCI_REG_LAYOUT_MAJVER)
{
avt_dbg(get_sd(camera), "correct cci register majver: %d (0x%x)\n",
cci_majver, camera->cci_reg.reg.layout_version);
}
else
{
avt_err(get_sd(camera), "cci reg majver mismatch! read: %d (0x%x) expected: %d\n",
cci_majver, camera->cci_reg.reg.layout_version, CCI_REG_LAYOUT_MAJVER);
ret = -EINVAL;
goto err_out;
}
err_out:
mutex_unlock(&camera->lock);
return ret;
}
static int bcrm_version_check(struct i2c_client *client)
{
struct avt_dev *camera = client_to_avt_dev(client);
u32 value = 0;
int ret;
mutex_lock(&camera->lock);
/* reading the BCRM version */
ret = bcrm_read32(camera,BCRM_VERSION_32R,&value);
if (ret < 0)
{
avt_err(get_sd(camera), "regmap_read failed (%d)", ret);
goto err_out;
}
avt_dbg(get_sd(camera), "bcrm version (driver): 0x%x (maj: 0x%x min: 0x%x)\n",
BCRM_DEVICE_VERSION,
BCRM_MAJOR_VERSION,
BCRM_MINOR_VERSION);
avt_dbg(get_sd(camera), "bcrm version (camera): 0x%x (maj: 0x%x min: 0x%x)\n",
value,
(value & 0xffff0000) >> 16,
(value & 0x0000ffff));
ret = (value >> 16) == BCRM_MAJOR_VERSION ? 1 : 0;
err_out:
mutex_unlock(&camera->lock);
return ret;
}
static int gcprm_version_check(struct i2c_client *client)
{
struct avt_dev *camera = client_to_avt_dev(client);
u32 value = camera->gencp_reg.gcprm_layout_version;
mutex_lock(&camera->lock);
avt_dbg(get_sd(camera), "gcprm version (driver): 0x%x (maj: 0x%x min: 0x%x)\n",
GCPRM_DEVICE_VERSION,
GCPRM_MAJOR_VERSION,
GCPRM_MINOR_VERSION);
avt_dbg(get_sd(camera), "gcprm version (camera): 0x%x (maj: 0x%x min: 0x%x)\n",
value,
(value & 0xffff0000) >> 16,
(value & 0x0000ffff));
mutex_unlock(&camera->lock);
return (value & 0xffff0000) >> 16 == GCPRM_MAJOR_VERSION ? 1 : 0;
}
/* implementation of driver attibutes published in sysfs */
static ssize_t availability_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct avt_dev *camera = client_to_avt_dev(to_i2c_client(dev));
ssize_t ret;
mutex_lock(&camera->lock);
dev_info(dev, "%s[%d]: %s", __func__, __LINE__, __FILE__);
ret = sprintf(buf, "%d\n", camera->open_refcnt == 0 ? 1 : 0);
mutex_unlock(&camera->lock);