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// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Rockchip ISP1 Driver - Base driver
*
* Copyright (C) 2019 Collabora, Ltd.
*
* Based on Rockchip ISP1 driver by Rockchip Electronics Co., Ltd.
* Copyright (C) 2017 Rockchip Electronics Co., Ltd.
*/
#include <linux/debugfs.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/minmax.h>
#include <linux/pm_runtime.h>
#include <linux/seq_file.h>
#include <linux/string.h>
#include "rkisp1-common.h"
#include "rkisp1-regs.h"
struct rkisp1_debug_register {
u32 reg;
u32 shd;
const char * const name;
};
#define RKISP1_DEBUG_REG(name) { RKISP1_CIF_##name, 0, #name }
#define RKISP1_DEBUG_SHD_REG(name) { \
RKISP1_CIF_##name, RKISP1_CIF_##name##_SHD, #name \
}
/* Keep this up-to-date when adding new registers. */
#define RKISP1_MAX_REG_LENGTH 21
static int rkisp1_debug_dump_regs(struct rkisp1_device *rkisp1,
struct seq_file *m, unsigned int offset,
const struct rkisp1_debug_register *regs)
{
const int width = RKISP1_MAX_REG_LENGTH;
u32 val, shd;
int ret;
ret = pm_runtime_get_if_in_use(rkisp1->dev);
if (ret <= 0)
return ret ? : -ENODATA;
for (; regs->name; ++regs) {
val = rkisp1_read(rkisp1, offset + regs->reg);
if (regs->shd) {
shd = rkisp1_read(rkisp1, offset + regs->shd);
seq_printf(m, "%*s: 0x%08x/0x%08x\n", width, regs->name,
val, shd);
} else {
seq_printf(m, "%*s: 0x%08x\n", width, regs->name, val);
}
}
pm_runtime_put(rkisp1->dev);
return 0;
}
static int rkisp1_debug_dump_core_regs_show(struct seq_file *m, void *p)
{
static const struct rkisp1_debug_register registers[] = {
RKISP1_DEBUG_REG(VI_CCL),
RKISP1_DEBUG_REG(VI_ICCL),
RKISP1_DEBUG_REG(VI_IRCL),
RKISP1_DEBUG_REG(VI_DPCL),
RKISP1_DEBUG_REG(MI_CTRL),
RKISP1_DEBUG_REG(MI_BYTE_CNT),
RKISP1_DEBUG_REG(MI_CTRL_SHD),
RKISP1_DEBUG_REG(MI_RIS),
RKISP1_DEBUG_REG(MI_STATUS),
RKISP1_DEBUG_REG(MI_DMA_CTRL),
RKISP1_DEBUG_REG(MI_DMA_STATUS),
{ /* Sentinel */ },
};
struct rkisp1_device *rkisp1 = m->private;
return rkisp1_debug_dump_regs(rkisp1, m, 0, registers);
}
DEFINE_SHOW_ATTRIBUTE(rkisp1_debug_dump_core_regs);
static int rkisp1_debug_dump_isp_regs_show(struct seq_file *m, void *p)
{
static const struct rkisp1_debug_register registers[] = {
RKISP1_DEBUG_REG(ISP_CTRL),
RKISP1_DEBUG_REG(ISP_ACQ_PROP),
RKISP1_DEBUG_REG(ISP_FLAGS_SHD),
RKISP1_DEBUG_REG(ISP_RIS),
RKISP1_DEBUG_REG(ISP_ERR),
{ /* Sentinel */ },
};
struct rkisp1_device *rkisp1 = m->private;
return rkisp1_debug_dump_regs(rkisp1, m, 0, registers);
}
DEFINE_SHOW_ATTRIBUTE(rkisp1_debug_dump_isp_regs);
static int rkisp1_debug_dump_rsz_regs_show(struct seq_file *m, void *p)
{
static const struct rkisp1_debug_register registers[] = {
RKISP1_DEBUG_SHD_REG(RSZ_CTRL),
RKISP1_DEBUG_SHD_REG(RSZ_SCALE_HY),
RKISP1_DEBUG_SHD_REG(RSZ_SCALE_HCB),
RKISP1_DEBUG_SHD_REG(RSZ_SCALE_HCR),
RKISP1_DEBUG_SHD_REG(RSZ_SCALE_VY),
RKISP1_DEBUG_SHD_REG(RSZ_SCALE_VC),
RKISP1_DEBUG_SHD_REG(RSZ_PHASE_HY),
RKISP1_DEBUG_SHD_REG(RSZ_PHASE_HC),
RKISP1_DEBUG_SHD_REG(RSZ_PHASE_VY),
RKISP1_DEBUG_SHD_REG(RSZ_PHASE_VC),
{ /* Sentinel */ },
};
struct rkisp1_resizer *rsz = m->private;
return rkisp1_debug_dump_regs(rsz->rkisp1, m, rsz->regs_base, registers);
}
DEFINE_SHOW_ATTRIBUTE(rkisp1_debug_dump_rsz_regs);
static int rkisp1_debug_dump_mi_mp_show(struct seq_file *m, void *p)
{
static const struct rkisp1_debug_register registers[] = {
RKISP1_DEBUG_REG(MI_MP_Y_BASE_AD_INIT),
RKISP1_DEBUG_REG(MI_MP_Y_BASE_AD_INIT2),
RKISP1_DEBUG_REG(MI_MP_Y_BASE_AD_SHD),
RKISP1_DEBUG_REG(MI_MP_Y_SIZE_INIT),
RKISP1_DEBUG_REG(MI_MP_Y_SIZE_INIT),
RKISP1_DEBUG_REG(MI_MP_Y_SIZE_SHD),
RKISP1_DEBUG_REG(MI_MP_Y_OFFS_CNT_SHD),
{ /* Sentinel */ },
};
struct rkisp1_device *rkisp1 = m->private;
return rkisp1_debug_dump_regs(rkisp1, m, 0, registers);
}
DEFINE_SHOW_ATTRIBUTE(rkisp1_debug_dump_mi_mp);
#define RKISP1_DEBUG_DATA_COUNT_BINS 32
#define RKISP1_DEBUG_DATA_COUNT_STEP (4096 / RKISP1_DEBUG_DATA_COUNT_BINS)
static int rkisp1_debug_input_status_show(struct seq_file *m, void *p)
{
struct rkisp1_device *rkisp1 = m->private;
u16 data_count[RKISP1_DEBUG_DATA_COUNT_BINS] = { };
unsigned int hsync_count = 0;
unsigned int vsync_count = 0;
unsigned int i;
u32 data;
u32 val;
int ret;
ret = pm_runtime_get_if_in_use(rkisp1->dev);
if (ret <= 0)
return ret ? : -ENODATA;
/* Sample the ISP input port status 10000 times with a 1µs interval. */
for (i = 0; i < 10000; ++i) {
val = rkisp1_read(rkisp1, RKISP1_CIF_ISP_FLAGS_SHD);
data = (val & RKISP1_CIF_ISP_FLAGS_SHD_S_DATA_MASK)
>> RKISP1_CIF_ISP_FLAGS_SHD_S_DATA_SHIFT;
data_count[data / RKISP1_DEBUG_DATA_COUNT_STEP]++;
if (val & RKISP1_CIF_ISP_FLAGS_SHD_S_HSYNC)
hsync_count++;
if (val & RKISP1_CIF_ISP_FLAGS_SHD_S_VSYNC)
vsync_count++;
udelay(1);
}
pm_runtime_put(rkisp1->dev);
seq_printf(m, "vsync: %u, hsync: %u\n", vsync_count, hsync_count);
seq_puts(m, "data:\n");
for (i = 0; i < ARRAY_SIZE(data_count); ++i)
seq_printf(m, "- [%04u:%04u]: %u\n",
i * RKISP1_DEBUG_DATA_COUNT_STEP,
(i + 1) * RKISP1_DEBUG_DATA_COUNT_STEP - 1,
data_count[i]);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(rkisp1_debug_input_status);
void rkisp1_debug_init(struct rkisp1_device *rkisp1)
{
struct rkisp1_debug *debug = &rkisp1->debug;
struct dentry *regs_dir;
debug->debugfs_dir = debugfs_create_dir(dev_name(rkisp1->dev), NULL);
debugfs_create_ulong("data_loss", 0444, debug->debugfs_dir,
&debug->data_loss);
debugfs_create_ulong("outform_size_err", 0444, debug->debugfs_dir,
&debug->outform_size_error);
debugfs_create_ulong("img_stabilization_size_error", 0444,
debug->debugfs_dir,
&debug->img_stabilization_size_error);
debugfs_create_ulong("inform_size_error", 0444, debug->debugfs_dir,
&debug->inform_size_error);
debugfs_create_ulong("irq_delay", 0444, debug->debugfs_dir,
&debug->irq_delay);
debugfs_create_ulong("mipi_error", 0444, debug->debugfs_dir,
&debug->mipi_error);
debugfs_create_ulong("stats_error", 0444, debug->debugfs_dir,
&debug->stats_error);
debugfs_create_ulong("mp_stop_timeout", 0444, debug->debugfs_dir,
&debug->stop_timeout[RKISP1_MAINPATH]);
debugfs_create_ulong("sp_stop_timeout", 0444, debug->debugfs_dir,
&debug->stop_timeout[RKISP1_SELFPATH]);
debugfs_create_ulong("mp_frame_drop", 0444, debug->debugfs_dir,
&debug->frame_drop[RKISP1_MAINPATH]);
debugfs_create_ulong("sp_frame_drop", 0444, debug->debugfs_dir,
&debug->frame_drop[RKISP1_SELFPATH]);
debugfs_create_file("input_status", 0444, debug->debugfs_dir, rkisp1,
&rkisp1_debug_input_status_fops);
regs_dir = debugfs_create_dir("regs", debug->debugfs_dir);
debugfs_create_file("core", 0444, regs_dir, rkisp1,
&rkisp1_debug_dump_core_regs_fops);
debugfs_create_file("isp", 0444, regs_dir, rkisp1,
&rkisp1_debug_dump_isp_regs_fops);
debugfs_create_file("mrsz", 0444, regs_dir,
&rkisp1->resizer_devs[RKISP1_MAINPATH],
&rkisp1_debug_dump_rsz_regs_fops);
debugfs_create_file("srsz", 0444, regs_dir,
&rkisp1->resizer_devs[RKISP1_SELFPATH],
&rkisp1_debug_dump_rsz_regs_fops);
debugfs_create_file("mi_mp", 0444, regs_dir, rkisp1,
&rkisp1_debug_dump_mi_mp_fops);
}
void rkisp1_debug_cleanup(struct rkisp1_device *rkisp1)
{
debugfs_remove_recursive(rkisp1->debug.debugfs_dir);
}
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