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/*
* Support for atomisp driver sysfs interface
*
* Copyright (c) 2014 Intel Corporation. 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 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*
*/
#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include "atomisp_compat.h"
#include "atomisp_internal.h"
#include "atomisp_ioctl.h"
#include "hmm/hmm.h"
/*
* _iunit_debug:
* dbglvl: iunit css driver trace level
* dbgopt: iunit debug option:
* bit 0: binary list
* bit 1: running binary
* bit 2: memory statistic
*/
struct _iunit_debug {
struct pci_driver *drv;
struct atomisp_device *isp;
unsigned int dbglvl;
unsigned int dbgfun;
unsigned int dbgopt;
};
#define OPTION_BIN_LIST (1<<0)
#define OPTION_BIN_RUN (1<<1)
#define OPTION_MEM_STAT (1<<2)
#define OPTION_VALID (OPTION_BIN_LIST \
| OPTION_BIN_RUN \
| OPTION_MEM_STAT)
static struct _iunit_debug iunit_debug = {
.dbglvl = 0,
.dbgopt = OPTION_BIN_LIST,
};
static inline int iunit_dump_dbgopt(struct atomisp_device *isp,
unsigned int opt)
{
int ret = 0;
if (opt & OPTION_VALID) {
if (opt & OPTION_BIN_LIST) {
ret = atomisp_css_dump_blob_infor();
if (ret) {
dev_err(atomisp_dev, "%s dump blob infor err[ret:%d]\n",
__func__, ret);
goto opt_err;
}
}
if (opt & OPTION_BIN_RUN) {
if (atomisp_streaming_count(isp)) {
atomisp_css_dump_sp_raw_copy_linecount(true);
atomisp_css_debug_dump_isp_binary();
} else {
ret = -EPERM;
dev_err(atomisp_dev, "%s dump running bin err[ret:%d]\n",
__func__, ret);
goto opt_err;
}
}
if (opt & OPTION_MEM_STAT)
hmm_show_mem_stat(__func__, __LINE__);
} else {
ret = -EINVAL;
dev_err(atomisp_dev, "%s dump nothing[ret=%d]\n", __func__,
ret);
}
opt_err:
return ret;
}
static ssize_t iunit_dbglvl_show(struct device_driver *drv, char *buf)
{
iunit_debug.dbglvl = atomisp_css_debug_get_dtrace_level();
return sprintf(buf, "dtrace level:%u\n", iunit_debug.dbglvl);
}
static ssize_t iunit_dbglvl_store(struct device_driver *drv, const char *buf,
size_t size)
{
if (kstrtouint(buf, 10, &iunit_debug.dbglvl)
|| iunit_debug.dbglvl < 1
|| iunit_debug.dbglvl > 9) {
return -ERANGE;
}
atomisp_css_debug_set_dtrace_level(iunit_debug.dbglvl);
return size;
}
static ssize_t iunit_dbgfun_show(struct device_driver *drv, char *buf)
{
iunit_debug.dbgfun = atomisp_get_css_dbgfunc();
return sprintf(buf, "dbgfun opt:%u\n", iunit_debug.dbgfun);
}
static ssize_t iunit_dbgfun_store(struct device_driver *drv, const char *buf,
size_t size)
{
unsigned int opt;
int ret;
ret = kstrtouint(buf, 10, &opt);
if (ret)
return ret;
ret = atomisp_set_css_dbgfunc(iunit_debug.isp, opt);
if (ret)
return ret;
iunit_debug.dbgfun = opt;
return size;
}
static ssize_t iunit_dbgopt_show(struct device_driver *drv, char *buf)
{
return sprintf(buf, "option:0x%x\n", iunit_debug.dbgopt);
}
static ssize_t iunit_dbgopt_store(struct device_driver *drv, const char *buf,
size_t size)
{
unsigned int opt;
int ret;
ret = kstrtouint(buf, 10, &opt);
if (ret)
return ret;
iunit_debug.dbgopt = opt;
ret = iunit_dump_dbgopt(iunit_debug.isp, iunit_debug.dbgopt);
if (ret)
return ret;
return size;
}
static const struct driver_attribute iunit_drvfs_attrs[] = {
__ATTR(dbglvl, 0644, iunit_dbglvl_show, iunit_dbglvl_store),
__ATTR(dbgfun, 0644, iunit_dbgfun_show, iunit_dbgfun_store),
__ATTR(dbgopt, 0644, iunit_dbgopt_show, iunit_dbgopt_store),
};
static int iunit_drvfs_create_files(struct pci_driver *drv)
{
int i, ret = 0;
for (i = 0; i < ARRAY_SIZE(iunit_drvfs_attrs); i++)
ret |= driver_create_file(&(drv->driver),
&iunit_drvfs_attrs[i]);
return ret;
}
static void iunit_drvfs_remove_files(struct pci_driver *drv)
{
int i;
for (i = 0; i < ARRAY_SIZE(iunit_drvfs_attrs); i++)
driver_remove_file(&(drv->driver), &iunit_drvfs_attrs[i]);
}
int atomisp_drvfs_init(struct pci_driver *drv, struct atomisp_device *isp)
{
int ret;
iunit_debug.isp = isp;
iunit_debug.drv = drv;
ret = iunit_drvfs_create_files(iunit_debug.drv);
if (ret) {
dev_err(atomisp_dev, "drvfs_create_files error: %d\n", ret);
iunit_drvfs_remove_files(drv);
}
return ret;
}
void atomisp_drvfs_exit(void)
{
iunit_drvfs_remove_files(iunit_debug.drv);
}
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