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media: ccs: Read CCS static data from firmware binaries 

Read the CCS static data for sensors and modules. The files are expected
to be found in "ccs" directory.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Sakari Ailus 2020-02-14 14:49:42 +01:00 committed by Mauro Carvalho Chehab
parent f86ae91627
commit a11d3d6891
2 changed files with 48 additions and 1 deletions
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47
drivers/media/i2c/ccs/ccs-core.c
View File

@ -16,6 +16,7 @@
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/firmware.h>
#include <linux/gpio.h>
#include <linux/gpio/consumer.h>
#include <linux/module.h>
@ -2953,6 +2954,8 @@ out_err:
static int ccs_probe(struct i2c_client *client)
{
struct ccs_sensor *sensor;
const struct firmware *fw;
char filename[40];
unsigned int i;
int rval;
@ -3042,9 +3045,43 @@ static int ccs_probe(struct i2c_client *client)
goto out_power_off;
}
rval = snprintf(filename, sizeof(filename),
"ccs/ccs-sensor-%4.4x-%4.4x-%4.4x.fw",
sensor->minfo.sensor_mipi_manufacturer_id,
sensor->minfo.sensor_model_id,
sensor->minfo.sensor_revision_number);
if (rval >= sizeof(filename)) {
rval = -ENOMEM;
goto out_power_off;
}
rval = request_firmware(&fw, filename, &client->dev);
if (!rval) {
ccs_data_parse(&sensor->sdata, fw->data, fw->size, &client->dev,
true);
release_firmware(fw);
}
rval = snprintf(filename, sizeof(filename),
"ccs/ccs-module-%4.4x-%4.4x-%4.4x.fw",
sensor->minfo.mipi_manufacturer_id,
sensor->minfo.model_id,
sensor->minfo.revision_number);
if (rval >= sizeof(filename)) {
rval = -ENOMEM;
goto out_release_sdata;
}
rval = request_firmware(&fw, filename, &client->dev);
if (!rval) {
ccs_data_parse(&sensor->mdata, fw->data, fw->size, &client->dev,
true);
release_firmware(fw);
}
rval = ccs_read_all_limits(sensor);
if (rval)
goto out_power_off;
goto out_release_mdata;
rval = ccs_read_frame_fmt(sensor);
if (rval) {
@ -3208,6 +3245,12 @@ out_media_entity_cleanup:
out_cleanup:
ccs_cleanup(sensor);
out_release_mdata:
kvfree(sensor->mdata.backing);
out_release_sdata:
kvfree(sensor->sdata.backing);
out_free_ccs_limits:
kfree(sensor->ccs_limits);
@ -3238,6 +3281,8 @@ static int ccs_remove(struct i2c_client *client)
ccs_cleanup(sensor);
mutex_destroy(&sensor->mutex);
kfree(sensor->ccs_limits);
kvfree(sensor->sdata.backing);
kvfree(sensor->mdata.backing);
return 0;
}

2
drivers/media/i2c/ccs/ccs.h
View File

@ -16,6 +16,7 @@
#include <media/v4l2-ctrls.h>
#include <media/v4l2-subdev.h>
#include "ccs-data.h"
#include "ccs-quirk.h"
#include "ccs-regs.h"
#include "ccs-reg-access.h"
@ -227,6 +228,7 @@ struct ccs_sensor {
const struct ccs_csi_data_format *internal_csi_format;
u32 default_mbus_frame_fmts;
int default_pixel_order;
struct ccs_data_container sdata, mdata;
u8 binning_horizontal;
u8 binning_vertical;