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Commit 1415acef authored by Suman Mukherjee's avatar Suman Mukherjee Committed by Vijay kumar Tumati
Browse files

msm: camera: enable eeprom functionality on 8909 



Adding required changes to support multi module eeprom
design.

Change-Id: I1c927e1a12f3c850ef2ef3b6f4a953f13c12205e
Signed-off-by: default avatarVijay kumar Tumati <vtumati@codeaurora.org>
parent 03df36a4

drivers/media/platform/msm/camera_v2/sensor/eeprom/msm_eeprom.c

+241 −159
Original line number Diff line number Diff line 
/* Copyright (c) 2011-2016, The Linux Foundation. All rights reserved.

/* Copyright (c) 2011-2016, 2018 The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -14,6 +14,7 @@ 
#include <linux/of_gpio.h>

#include <linux/delay.h>

#include <linux/crc32.h>

#include <linux/slab.h>

#include "msm_sd.h"

#include "msm_cci.h"

#include "msm_eeprom.h"
@@ -24,6 +25,17 @@ 
DEFINE_MSM_MUTEX(msm_eeprom_mutex);

#ifdef CONFIG_COMPAT

static struct v4l2_file_operations msm_eeprom_v4l2_subdev_fops;

static void msm_eeprom_copy_power_settings_compat(

		struct msm_sensor_power_setting_array*,

		struct msm_sensor_power_setting_array32*);

static int eeprom_config_read_cal_data32(struct msm_eeprom_ctrl_t*,

					void __user*);

static int eeprom_init_config32(struct msm_eeprom_ctrl_t*, void __user*);

static int msm_eeprom_config32(struct msm_eeprom_ctrl_t*, void __user*);

static long msm_eeprom_subdev_ioctl32(struct v4l2_subdev*, unsigned int, void*);

static long msm_eeprom_subdev_do_ioctl32(struct file*, unsigned int, void*);

static long msm_eeprom_subdev_fops_ioctl32(struct file*, unsigned int,

						unsigned long);

#endif



/**
@@ -768,6 +780,92 @@ static int msm_eeprom_close(struct v4l2_subdev *sd, 
	return rc;

}



static int msm_eeprom_get_dt_data(struct msm_eeprom_ctrl_t *e_ctrl)

{

	int rc = 0, i = 0;

	struct msm_eeprom_board_info *eb_info;

	struct msm_camera_power_ctrl_t *power_info =

		&e_ctrl->eboard_info->power_info;

	struct device_node *of_node = NULL;

	struct msm_camera_gpio_conf *gconf = NULL;

	int8_t gpio_array_size = 0;

	uint16_t *gpio_array = NULL;



	eb_info = e_ctrl->eboard_info;

	if (e_ctrl->eeprom_device_type == MSM_CAMERA_SPI_DEVICE)

		of_node = e_ctrl->i2c_client.

			spi_client->spi_master->dev.of_node;

	else if (e_ctrl->eeprom_device_type == MSM_CAMERA_PLATFORM_DEVICE)

		of_node = e_ctrl->pdev->dev.of_node;

	else

		of_node = e_ctrl->i2c_client.client->dev.of_node;



	if (!of_node) {

		pr_err("%s: %d of_node is NULL\n", __func__ , __LINE__);

		return -ENOMEM;

	}

	rc = msm_camera_get_dt_vreg_data(of_node, &power_info->cam_vreg,

					     &power_info->num_vreg);

	if (rc < 0)

		return rc;



	if (e_ctrl->userspace_probe == 0) {

		rc = msm_camera_get_dt_power_setting_data(of_node,

			power_info->cam_vreg, power_info->num_vreg,

			power_info);

		if (rc < 0)

			goto ERROR1;

	}



	power_info->gpio_conf = kzalloc(sizeof(struct msm_camera_gpio_conf),

					GFP_KERNEL);

	if (!power_info->gpio_conf) {

		rc = -ENOMEM;

		goto ERROR2;

	}

	gconf = power_info->gpio_conf;

	gpio_array_size = of_gpio_count(of_node);

	CDBG("%s gpio count %d\n", __func__, gpio_array_size);



	if (gpio_array_size > 0) {

		gpio_array = kcalloc(gpio_array_size, sizeof(uint16_t),

			GFP_KERNEL);

		if (gpio_array == NULL)

			goto ERROR3;

		for (i = 0; i < gpio_array_size; i++) {

			gpio_array[i] = of_get_gpio(of_node, i);

			CDBG("%s gpio_array[%d] = %d\n", __func__, i,

				gpio_array[i]);

		}



		rc = msm_camera_get_dt_gpio_req_tbl(of_node, gconf,

			gpio_array, gpio_array_size);

		if (rc < 0) {

			pr_err("%s failed %d\n", __func__, __LINE__);

			goto ERROR4;

		}



		rc = msm_camera_init_gpio_pin_tbl(of_node, gconf,

			gpio_array, gpio_array_size);

		if (rc < 0) {

			pr_err("%s failed %d\n", __func__, __LINE__);

			goto ERROR4;

		}

		kfree(gpio_array);

	}



	return rc;

ERROR4:

	kfree(gpio_array);

ERROR3:

	kfree(power_info->gpio_conf);

ERROR2:

	kfree(power_info->cam_vreg);

ERROR1:

	kfree(power_info->power_setting);

	return rc;

}



static const struct v4l2_subdev_internal_ops msm_eeprom_internal_ops = {

	.open = msm_eeprom_open,

	.close = msm_eeprom_close,
@@ -785,111 +883,173 @@ static int msm_eeprom_i2c_probe(struct i2c_client *client, 
			 const struct i2c_device_id *id)

{

	int rc = 0;

	int j = 0;

	uint32_t temp;



	struct msm_eeprom_ctrl_t *e_ctrl = NULL;

	CDBG("%s E\n", __func__);

	struct msm_eeprom_board_info *eb_info = NULL;

	struct device_node *of_node;

	struct msm_camera_power_ctrl_t *power_info = NULL;

	uint32_t cell_id;



	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {

		pr_err("%s i2c_check_functionality failed\n", __func__);

		goto probe_failure;

	}

	CDBG("%s E\n", __func__);



	e_ctrl = kzalloc(sizeof(*e_ctrl), GFP_KERNEL);

	if (!e_ctrl) {

		pr_err("%s:%d kzalloc failed\n", __func__, __LINE__);

		return -ENOMEM;

	}

	e_ctrl->eeprom_v4l2_subdev_ops = &msm_eeprom_subdev_ops;

	e_ctrl->eeprom_mutex = &msm_eeprom_mutex;

	CDBG("%s client = 0x%pK\n", __func__, client);

	e_ctrl->eboard_info = (struct msm_eeprom_board_info *)(id->driver_data);

	if (!e_ctrl->eboard_info) {

		pr_err("%s:%d board info NULL\n", __func__, __LINE__);

		rc = -EINVAL;

		goto ectrl_free;

	}

	e_ctrl->i2c_client.client = client;

	e_ctrl->cal_data.mapdata = NULL;

	e_ctrl->cal_data.map = NULL;

	e_ctrl->userspace_probe = 0;

	e_ctrl->is_supported = 1;

	e_ctrl->is_supported = 0;

	of_node = e_ctrl->i2c_client.client->dev.of_node;

	if (!of_node) {

		pr_err("%s dev.of_node NULL\n", __func__);

		rc = -EINVAL;

		goto ectrl_free;

	}



	/* Set device type as I2C */

	/* Set device type as platform device */

	e_ctrl->eeprom_device_type = MSM_CAMERA_I2C_DEVICE;

	e_ctrl->i2c_client.i2c_func_tbl = &msm_eeprom_qup_func_tbl;



	if (e_ctrl->eboard_info->i2c_slaveaddr != 0)

		e_ctrl->i2c_client.client->addr =

			e_ctrl->eboard_info->i2c_slaveaddr;

	e_ctrl->eboard_info = kzalloc(sizeof(

		struct msm_eeprom_board_info), GFP_KERNEL);

	if (e_ctrl->eboard_info == NULL) {

		rc = -ENOMEM;

		goto ectrl_free;

	}

	eb_info = e_ctrl->eboard_info;

	power_info = &eb_info->power_info;

	power_info->dev = &e_ctrl->i2c_client.client->dev;





	/*Get clocks information*/

	rc = msm_camera_i2c_dev_get_clk_info(

		&e_ctrl->i2c_client.client->dev,

		&e_ctrl->eboard_info->power_info.clk_info,

		&e_ctrl->eboard_info->power_info.clk_ptr,

		&e_ctrl->eboard_info->power_info.clk_info_size);

	rc = msm_camera_i2c_dev_get_clk_info(&e_ctrl->i2c_client.client->dev,

		&power_info->clk_info,

		&power_info->clk_ptr,

		&power_info->clk_info_size);

	if (rc < 0) {

		pr_err("failed: msm_camera_get_clk_info rc %d", rc);

		goto ectrl_free;

		goto board_free;

	}



	rc = of_property_read_u32(of_node, "cell-index",

		&cell_id);

	CDBG("cell-index %d, rc %d\n", cell_id, rc);

	if (rc < 0) {

		pr_err("failed rc %d\n", rc);

		goto board_free;

	}

	e_ctrl->subdev_id = cell_id;



	/*IMPLEMENT READING PART*/

	/* Initialize sub device */

	v4l2_i2c_subdev_init(&e_ctrl->msm_sd.sd,

		e_ctrl->i2c_client.client,

	rc = of_property_read_string(of_node, "qcom,eeprom-name",

		&eb_info->eeprom_name);

	CDBG("%s qcom,eeprom-name %s, rc %d\n", __func__,

		eb_info->eeprom_name, rc);

	if (rc < 0) {

		pr_err("%s failed %d\n", __func__, __LINE__);

		e_ctrl->userspace_probe = 1;

	}



	rc = msm_eeprom_get_dt_data(e_ctrl);

	if (rc < 0)

		goto board_free;



	if (e_ctrl->userspace_probe == 0) {

		rc = of_property_read_u32(of_node, "qcom,slave-addr",

			&temp);

		if (rc < 0) {

			pr_err("%s failed rc %d\n", __func__, rc);

			goto board_free;

		}



		rc = of_property_read_u32(of_node, "qcom,i2c-freq-mode",

			&e_ctrl->i2c_freq_mode);

		CDBG("qcom,i2c_freq_mode %d, rc %d\n",

			e_ctrl->i2c_freq_mode, rc);

		if (rc < 0) {

			pr_err("%s qcom,i2c-freq-mode read fail. Setting to 0 %d\n",

				__func__, rc);

			e_ctrl->i2c_freq_mode = 0;

		}

		if (e_ctrl->i2c_freq_mode >= I2C_MAX_MODES) {

			pr_err("%s:%d invalid i2c_freq_mode = %d\n",

				__func__, __LINE__, e_ctrl->i2c_freq_mode);

			e_ctrl->i2c_freq_mode = 0;

		}

		eb_info->i2c_slaveaddr = temp;

		CDBG("qcom,slave-addr = 0x%X\n", eb_info->i2c_slaveaddr);

		eb_info->i2c_freq_mode = e_ctrl->i2c_freq_mode;



		rc = msm_eeprom_parse_memory_map(of_node, &e_ctrl->cal_data);

		if (rc < 0)

			goto board_free;



		rc = msm_camera_power_up(power_info, e_ctrl->eeprom_device_type,

			&e_ctrl->i2c_client);

		if (rc) {

			pr_err("failed rc %d\n", rc);

			goto memdata_free;

		}

		rc = read_eeprom_memory(e_ctrl, &e_ctrl->cal_data);

		if (rc < 0) {

			pr_err("%s read_eeprom_memory failed\n", __func__);

			goto power_down;

		}

		for (j = 0; j < e_ctrl->cal_data.num_data; j++)

			CDBG("memory_data[%d] = 0x%X\n", j,

				e_ctrl->cal_data.mapdata[j]);



		e_ctrl->is_supported |= msm_eeprom_match_crc(&e_ctrl->cal_data);



		rc = msm_camera_power_down(power_info,

			e_ctrl->eeprom_device_type, &e_ctrl->i2c_client);

		if (rc) {

			pr_err("failed rc %d\n", rc);

			goto memdata_free;

		}

	} else {

		e_ctrl->is_supported = 1;

	}

	v4l2_subdev_init(&e_ctrl->msm_sd.sd,

		e_ctrl->eeprom_v4l2_subdev_ops);

	v4l2_set_subdevdata(&e_ctrl->msm_sd.sd, e_ctrl);

	e_ctrl->msm_sd.sd.internal_ops = &msm_eeprom_internal_ops;

	e_ctrl->msm_sd.sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;

	snprintf(e_ctrl->msm_sd.sd.name,

		ARRAY_SIZE(e_ctrl->msm_sd.sd.name), "msm_eeprom");

	media_entity_init(&e_ctrl->msm_sd.sd.entity, 0, NULL, 0);

	e_ctrl->msm_sd.sd.entity.type = MEDIA_ENT_T_V4L2_SUBDEV;

	e_ctrl->msm_sd.sd.entity.group_id = MSM_CAMERA_SUBDEV_EEPROM;

	msm_sd_register(&e_ctrl->msm_sd);

	CDBG("%s success result=%d X\n", __func__, rc);

	return rc;



ectrl_free:

	kfree(e_ctrl);

probe_failure:

	pr_err("%s failed! rc = %d\n", __func__, rc);

	return rc;

}



static int msm_eeprom_i2c_remove(struct i2c_client *client)

{

	struct v4l2_subdev *sd = i2c_get_clientdata(client);

	struct msm_eeprom_ctrl_t  *e_ctrl;

	if (!sd) {

		pr_err("%s: Subdevice is NULL\n", __func__);

		return 0;

	}



	e_ctrl = (struct msm_eeprom_ctrl_t *)v4l2_get_subdevdata(sd);

	if (!e_ctrl) {

		pr_err("%s: eeprom device is NULL\n", __func__);

		return 0;

	}



	if (!e_ctrl->eboard_info) {

		pr_err("%s: eboard_info is NULL\n", __func__);

		return 0;

	}

#ifdef CONFIG_COMPAT

	msm_cam_copy_v4l2_subdev_fops(&msm_eeprom_v4l2_subdev_fops);

	msm_eeprom_v4l2_subdev_fops.compat_ioctl32 =

		msm_eeprom_subdev_fops_ioctl32;

	e_ctrl->msm_sd.sd.devnode->fops = &msm_eeprom_v4l2_subdev_fops;

#endif



	msm_camera_i2c_dev_put_clk_info(&e_ctrl->i2c_client.client->dev,

		&e_ctrl->eboard_info->power_info.clk_info,

		&e_ctrl->eboard_info->power_info.clk_ptr,

		e_ctrl->eboard_info->power_info.clk_info_size);

	e_ctrl->is_supported = (e_ctrl->is_supported << 1) | 1;

	CDBG("%s X\n", __func__);

	return rc;



power_down:

	msm_camera_power_down(power_info, e_ctrl->eeprom_device_type,

		&e_ctrl->i2c_client);

memdata_free:

	kfree(e_ctrl->cal_data.mapdata);

	kfree(e_ctrl->cal_data.map);

	if (e_ctrl->eboard_info) {

		kfree(e_ctrl->eboard_info->power_info.gpio_conf);

board_free:

	kfree(e_ctrl->eboard_info);

	}

	e_ctrl->cal_data.mapdata = NULL;

ectrl_free:

	kfree(e_ctrl);

	e_ctrl = NULL;

	return rc;



	return 0;

}



#define msm_eeprom_spi_parse_cmd(spic, str, name, out, size)		\
@@ -944,93 +1104,6 @@ static int msm_eeprom_match_id(struct msm_eeprom_ctrl_t *e_ctrl) 
	return 0;

}



static int msm_eeprom_get_dt_data(struct msm_eeprom_ctrl_t *e_ctrl)

{

	int rc = 0, i = 0;

	struct msm_eeprom_board_info *eb_info;

	struct msm_camera_power_ctrl_t *power_info =

		&e_ctrl->eboard_info->power_info;

	struct device_node *of_node = NULL;

	struct msm_camera_gpio_conf *gconf = NULL;

	int8_t gpio_array_size = 0;

	uint16_t *gpio_array = NULL;



	eb_info = e_ctrl->eboard_info;

	if (e_ctrl->eeprom_device_type == MSM_CAMERA_SPI_DEVICE)

		of_node = e_ctrl->i2c_client.

			spi_client->spi_master->dev.of_node;

	else if (e_ctrl->eeprom_device_type == MSM_CAMERA_PLATFORM_DEVICE)

		of_node = e_ctrl->pdev->dev.of_node;



	if (!of_node) {

		pr_err("%s: %d of_node is NULL\n", __func__ , __LINE__);

		return -ENOMEM;

	}

	rc = msm_camera_get_dt_vreg_data(of_node, &power_info->cam_vreg,

					     &power_info->num_vreg);

	if (rc < 0)

		return rc;



	if (e_ctrl->userspace_probe == 0) {

		rc = msm_camera_get_dt_power_setting_data(of_node,

			power_info->cam_vreg, power_info->num_vreg,

			power_info);

		if (rc < 0)

			goto ERROR1;

	}



	power_info->gpio_conf = kzalloc(sizeof(struct msm_camera_gpio_conf),

					GFP_KERNEL);

	if (!power_info->gpio_conf) {

		rc = -ENOMEM;

		goto ERROR2;

	}

	gconf = power_info->gpio_conf;

	gpio_array_size = of_gpio_count(of_node);

	CDBG("%s gpio count %d\n", __func__, gpio_array_size);



	if (gpio_array_size > 0) {

		gpio_array = kzalloc(sizeof(uint16_t) * gpio_array_size,

			GFP_KERNEL);

		if (!gpio_array) {

			pr_err("%s failed %d\n", __func__, __LINE__);

			goto ERROR3;

		}

		for (i = 0; i < gpio_array_size; i++) {

			gpio_array[i] = of_get_gpio(of_node, i);

			CDBG("%s gpio_array[%d] = %d\n", __func__, i,

				gpio_array[i]);

		}



		rc = msm_camera_get_dt_gpio_req_tbl(of_node, gconf,

			gpio_array, gpio_array_size);

		if (rc < 0) {

			pr_err("%s failed %d\n", __func__, __LINE__);

			goto ERROR4;

		}



		rc = msm_camera_init_gpio_pin_tbl(of_node, gconf,

			gpio_array, gpio_array_size);

		if (rc < 0) {

			pr_err("%s failed %d\n", __func__, __LINE__);

			goto ERROR4;

		}

		kfree(gpio_array);

	}



	return rc;

ERROR4:

	kfree(gpio_array);

ERROR3:

	kfree(power_info->gpio_conf);

ERROR2:

	kfree(power_info->cam_vreg);

ERROR1:

	kfree(power_info->power_setting);

	return rc;

}





static int msm_eeprom_cmm_dts(struct msm_eeprom_board_info *eb_info,

	struct device_node *of_node)

{
@@ -1292,6 +1365,7 @@ static int msm_eeprom_spi_remove(struct spi_device *sdev) 
}



#ifdef CONFIG_COMPAT



static void msm_eeprom_copy_power_settings_compat(

	struct msm_sensor_power_setting_array *ps,

	struct msm_sensor_power_setting_array32 *ps32)
@@ -1573,7 +1647,6 @@ static long msm_eeprom_subdev_fops_ioctl32(struct file *file, unsigned int cmd, 
{

	return video_usercopy(file, cmd, arg, msm_eeprom_subdev_do_ioctl32);

}



#endif



static int msm_eeprom_platform_probe(struct platform_device *pdev)
@@ -1828,16 +1901,25 @@ static struct platform_driver msm_eeprom_platform_driver = { 
};



static const struct i2c_device_id msm_eeprom_i2c_id[] = {

	{ "msm_eeprom", (kernel_ulong_t)NULL},

	{ "qcom,eeprom", (kernel_ulong_t)NULL},

	{ }

};



static const struct of_device_id msm_eeprom_i2c_dt_match[] = {

	{.compatible = "qcom,eeprom"},

	{ }

};



MODULE_DEVICE_TABLE(of, msm_eeprom_i2c_dt_match);



static struct i2c_driver msm_eeprom_i2c_driver = {

	.id_table = msm_eeprom_i2c_id,

	.probe  = msm_eeprom_i2c_probe,

	.remove = msm_eeprom_i2c_remove,

	.remove = __exit_p(msm_eeprom_i2c_remove),

	.driver = {

		.name = "msm_eeprom",

		.name = "qcom,eeprom",

		.owner = THIS_MODULE,

		.of_match_table = msm_eeprom_i2c_dt_match,

	},

};